/* 国产线上吃瓜 - 全站公共样式 */
:root{
  --primary:#ff4d6d;
  --primary-dark:#e63e5c;
  --primary-light:#ff8fa3;
  --secondary:#ffd166;
  --dark:#1a1a2e;
  --dark-2:#16213e;
  --dark-3:#0f3460;
  --light:#f8f9fa;
  --gray:#6c757d;
  --border:#e9ecef;
  --radius:12px;
  --shadow:0 4px 20px rgba(0,0,0,.08);
  --shadow-hover:0 8px 30px rgba(255,77,109,.25);
  --transition:all .3s ease;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:'Noto Sans SC',system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  color:var(--dark);
  background:#fff;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:var(--transition)}
ul,ol{list-style:none}
.container{width:min(1200px,92%);margin:0 auto}
.section{padding:80px 0}
.section-sm{padding:56px 0}
.text-center{text-align:center}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 32px;border-radius:50px;font-weight:600;font-size:1rem;
  border:none;cursor:pointer;transition:var(--transition);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;box-shadow:0 4px 15px rgba(255,77,109,.35);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(255,77,109,.45)}
.btn-outline{
  background:transparent;color:#fff;border:2px solid rgba(255,255,255,.6);
}
.btn-outline:hover{background:rgba(255,255,255,.15);border-color:#fff;transform:translateY(-3px)}
.btn-dark{background:var(--dark);color:#fff}
.btn-dark:hover{background:var(--dark-2);transform:translateY(-3px)}

/* ===== 顶部公告条 ===== */
.topbar{
  background:var(--dark);color:rgba(255,255,255,.85);
  font-size:.85rem;padding:8px 0;
}
.topbar .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
.topbar a{color:var(--secondary)}
.topbar a:hover{color:#fff}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.95);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  transition:var(--transition);
}
.site-header.scrolled{box-shadow:var(--shadow)}
.navbar{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{
  display:flex;align-items:center;gap:10px;
  font-size:1.35rem;font-weight:800;color:var(--dark);
}
.brand-icon{
  width:40px;height:40px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.2rem;
}
.brand span{color:var(--primary)}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-menu a{
  padding:10px 18px;border-radius:8px;font-weight:500;color:var(--dark);
  position:relative;
}
.nav-menu a::after{
  content:'';position:absolute;left:18px;right:18px;bottom:4px;height:2px;
  background:var(--primary);border-radius:2px;transform:scaleX(0);transition:transform .3s ease;
}
.nav-menu a:hover,.nav-menu a.active{color:var(--primary)}
.nav-menu a:hover::after,.nav-menu a.active::after{transform:scaleX(1)}
.nav-toggle{
  display:none;background:none;border:none;font-size:1.6rem;cursor:pointer;color:var(--dark);
}
.nav-cta{display:flex;gap:12px;align-items:center}
.nav-cta .btn{padding:10px 24px;font-size:.9rem}

/* ===== Hero ===== */
.hero{
  position:relative;min-height:88vh;display:flex;align-items:center;
  background:linear-gradient(135deg,var(--dark) 0%,var(--dark-2) 55%,var(--dark-3) 100%);
  color:#fff;overflow:hidden;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:url('https://picsum.photos/seed/hero-bg-pattern/1920/1080') center/cover no-repeat;
  opacity:.12;mix-blend-mode:overlay;
}
.hero .container{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:8px 18px;border-radius:50px;
  background:rgba(255,77,109,.15);border:1px solid rgba(255,77,109,.4);
  color:var(--primary-light);font-size:.85rem;font-weight:600;margin-bottom:24px;
  animation:fadeInDown .8s ease both;
}
.hero h1{
  font-size:clamp(2.2rem,5vw,3.6rem);line-height:1.2;font-weight:800;margin-bottom:20px;
  animation:fadeInUp .8s ease .1s both;
}
.hero h1 .highlight{
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.hero p.lead{
  font-size:1.15rem;color:rgba(255,255,255,.75);margin-bottom:32px;max-width:560px;
  animation:fadeInUp .8s ease .2s both;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;animation:fadeInUp .8s ease .3s both}
.hero-media{
  position:relative;border-radius:20px;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.4);
  animation:fadeInLeft .8s ease .3s both;
}
.hero-media img{width:100%;height:420px;object-fit:cover}
.hero-media .play-badge{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(to top,rgba(0,0,0,.5),transparent);
}
.play-btn{
  width:84px;height:84px;border-radius:50%;background:rgba(255,77,109,.9);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:2rem;
  box-shadow:0 0 0 12px rgba(255,77,109,.25);animation:pulse 2s infinite;cursor:pointer;border:none;
}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:56px;
  padding-top:40px;border-top:1px solid rgba(255,255,255,.12);
  animation:fadeInUp .8s ease .4s both;
}
.stat-item{text-align:center}
.stat-item .num{font-size:2rem;font-weight:800;color:var(--secondary)}
.stat-item .label{font-size:.9rem;color:rgba(255,255,255,.6)}

/* ===== 通用 section 标题 ===== */
.section-head{max-width:720px;margin:0 auto 48px;text-align:center}
.section-tag{
  display:inline-block;padding:6px 16px;border-radius:50px;font-size:.82rem;font-weight:700;
  background:rgba(255,77,109,.1);color:var(--primary);margin-bottom:16px;letter-spacing:1px;
}
.section-head h2{font-size:clamp(1.7rem,3.5vw,2.4rem);font-weight:800;margin-bottom:14px}
.section-head p{color:var(--gray);font-size:1.05rem}

/* ===== 核心特性 ===== */
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:28px}
.feature-card{
  background:#fff;border-radius:var(--radius);padding:36px 28px;
  border:1px solid var(--border);transition:var(--transition);position:relative;overflow:hidden;
}
.feature-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
  transform:scaleX(0);transform-origin:left;transition:transform .4s ease;
}
.feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover);border-color:rgba(255,77,109,.3)}
.feature-card:hover::before{transform:scaleX(1)}
.feature-icon{
  width:64px;height:64px;border-radius:16px;margin-bottom:20px;
  background:linear-gradient(135deg,rgba(255,77,109,.12),rgba(255,209,102,.12));
  display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:var(--primary);
}
.feature-card h3{font-size:1.2rem;margin-bottom:12px;font-weight:700}
.feature-card p{color:var(--gray);font-size:.95rem}

/* ===== 服务介绍 ===== */
.services{background:var(--light)}
.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:28px}
.service-card{
  background:#fff;border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);transition:var(--transition);
}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.service-card .thumb{position:relative;height:200px;overflow:hidden}
.service-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.service-card:hover .thumb img{transform:scale(1.08)}
.service-card .body{padding:26px}
.service-card .body h3{font-size:1.15rem;margin-bottom:10px;font-weight:700}
.service-card .body p{color:var(--gray);font-size:.93rem;margin-bottom:16px}
.service-card .meta{display:flex;justify-content:space-between;align-items:center;font-size:.85rem;color:var(--gray)}
.service-card .meta .tag{
  padding:4px 12px;border-radius:50px;background:rgba(255,77,109,.1);color:var(--primary);font-weight:600;
}

/* ===== 详细内容/资讯卡片 ===== */
.content-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:28px}
.news-card{
  background:#fff;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--border);transition:var(--transition);display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.news-card .thumb{position:relative;height:210px;overflow:hidden}
.news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.news-card:hover .thumb img{transform:scale(1.07)}
.news-card .badge{
  position:absolute;top:14px;left:14px;padding:5px 14px;border-radius:50px;
  background:var(--primary);color:#fff;font-size:.75rem;font-weight:600;
}
.news-card .body{padding:24px;flex:1;display:flex;flex-direction:column}
.news-card .body .date{font-size:.82rem;color:var(--gray);margin-bottom:8px}
.news-card .body h3{font-size:1.1rem;font-weight:700;margin-bottom:10px;line-height:1.5}
.news-card .body p{color:var(--gray);font-size:.92rem;flex:1}
.news-card .foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--border);
  display:flex;justify-content:space-between;align-items:center;font-size:.85rem}
.news-card .foot a{color:var(--primary);font-weight:600}
.news-card .foot a:hover{color:var(--primary-dark)}

/* ===== 图文混排 ===== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split.reverse .split-media{order:2}
.split-media{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.split-media img{width:100%;height:420px;object-fit:cover}
.split-body h2{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;margin-bottom:18px}
.split-body p{color:var(--gray);margin-bottom:16px}
.check-list{margin:24px 0;display:grid;gap:14px}
.check-list li{display:flex;gap:12px;align-items:flex-start}
.check-list .icon{
  flex:none;width:24px;height:24px;border-radius:50%;background:rgba(255,77,109,.12);
  color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:.8rem;margin-top:2px;
}

/* ===== CTA ===== */
.cta{
  position:relative;padding:90px 0;color:#fff;text-align:center;overflow:hidden;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
}
.cta::before{
  content:'';position:absolute;inset:0;
  background:url('https://picsum.photos/seed/cta-texture/1600/600') center/cover no-repeat;
  opacity:.1;mix-blend-mode:overlay;
}
.cta .container{position:relative;z-index:2}
.cta h2{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;margin-bottom:16px}
.cta p{font-size:1.1rem;opacity:.9;max-width:640px;margin:0 auto 32px}
.cta .btn{background:#fff;color:var(--primary);font-size:1.05rem;padding:16px 42px}
.cta .btn:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 12px 30px rgba(0,0,0,.25)}

/* ===== FAQ ===== */
.faq-list{max-width:820px;margin:0 auto;display:grid;gap:16px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;
  transition:var(--transition);
}
.faq-item.active{border-color:rgba(255,77,109,.4);box-shadow:var(--shadow)}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:20px 24px;background:none;border:none;cursor:pointer;text-align:left;
  font-size:1.02rem;font-weight:600;color:var(--dark);
}
.faq-q .arrow{transition:transform .3s ease;color:var(--primary);flex:none}
.faq-item.active .faq-q .arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;color:var(--gray)}
.faq-a .inner{padding:0 24px 22px}

/* ===== 页脚 ===== */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand p{font-size:.92rem;max-width:320px}
.footer-col h4{color:#fff;font-size:1.05rem;margin-bottom:18px;font-weight:700}
.footer-col ul{display:grid;gap:10px}
.footer-col a:hover{color:var(--primary-light)}
.footer-contact li{display:flex;gap:10px;margin-bottom:12px;align-items:flex-start}
.footer-contact .icon{color:var(--primary);flex:none;margin-top:3px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:.85rem;
}
.footer-bottom a:hover{color:var(--primary-light)}

/* ===== 面包屑 / 子页 Hero ===== */
.page-hero{
  position:relative;padding:110px 0 80px;color:#fff;text-align:center;overflow:hidden;
  background:linear-gradient(135deg,var(--dark) 0%,var(--dark-2) 60%,var(--dark-3) 100%);
}
.page-hero::before{
  content:'';position:absolute;inset:0;
  background:url('https://picsum.photos/seed/page-hero-bg/1600/500') center/cover no-repeat;
  opacity:.14;mix-blend-mode:overlay;
}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{font-size:clamp(2rem,4.5vw,3rem);font-weight:800;margin-bottom:14px;animation:fadeInUp .7s ease both}
.page-hero p{color:rgba(255,255,255,.75);max-width:640px;margin:0 auto;animation:fadeInUp .7s ease .15s both}
.breadcrumb{
  display:inline-flex;gap:8px;align-items:center;margin-top:22px;font-size:.9rem;
  color:rgba(255,255,255,.65);animation:fadeInUp .7s ease .25s both;
}
.breadcrumb a{color:var(--secondary)}
.breadcrumb a:hover{color:#fff}

/* ===== 产品页 ===== */
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:28px}
.product-card{
  background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);
  transition:var(--transition);position:relative;
}
.product-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover)}
.product-card .thumb{height:230px;overflow:hidden;position:relative}
.product-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.product-card:hover .thumb img{transform:scale(1.08)}
.product-card .label{
  position:absolute;top:14px;right:14px;padding:5px 14px;border-radius:50px;
  background:var(--secondary);color:var(--dark);font-size:.78rem;font-weight:700;
}
.product-card .body{padding:24px}
.product-card .body h3{font-size:1.12rem;font-weight:700;margin-bottom:8px}
.product-card .body p{color:var(--gray);font-size:.9rem;margin-bottom:16px;min-height:44px}
.product-card .price{display:flex;align-items:baseline;gap:8px;margin-bottom:18px}
.product-card .price .now{font-size:1.5rem;font-weight:800;color:var(--primary)}
.product-card .price .old{font-size:.9rem;color:var(--gray);text-decoration:line-through}
.product-card .btn{width:100%}

/* ===== 新闻详情页 ===== */
.article-wrap{max-width:860px;margin:0 auto}
.article-header{margin-bottom:32px}
.article-header h1{font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:800;line-height:1.4;margin-bottom:16px}
.article-meta{
  display:flex;gap:20px;flex-wrap:wrap;color:var(--gray);font-size:.9rem;
  padding-bottom:20px;border-bottom:1px solid var(--border);
}
.article-hero{border-radius:var(--radius);overflow:hidden;margin-bottom:32px;box-shadow:var(--shadow)}
.article-hero img{width:100%;max-height:460px;object-fit:cover}
.article-body{font-size:1.05rem;color:#333}
.article-body p{margin-bottom:20px}
.article-body h2{font-size:1.5rem;font-weight:800;margin:36px 0 16px;padding-left:14px;border-left:4px solid var(--primary)}
.article-body h3{font-size:1.2rem;font-weight:700;margin:28px 0 12px}
.article-body img{border-radius:var(--radius);margin:24px 0}
.article-body blockquote{
  background:var(--light);border-left:4px solid var(--primary);padding:18px 22px;
  border-radius:0 var(--radius) var(--radius) 0;margin:24px 0;color:var(--gray);font-style:italic;
}
.article-tags{display:flex;gap:10px;flex-wrap:wrap;margin:32px 0;padding-top:24px;border-top:1px solid var(--border)}
.article-tags span{
  padding:6px 16px;border-radius:50px;background:rgba(255,77,109,.08);color:var(--primary);font-size:.85rem;font-weight:600;
}
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:40px}
.article-nav a{
  padding:20px 24px;border:1px solid var(--border);border-radius:var(--radius);transition:var(--transition);
}
.article-nav a:hover{border-color:var(--primary);box-shadow:var(--shadow)}
.article-nav .dir{font-size:.82rem;color:var(--gray);margin-bottom:6px}
.article-nav .ttl{font-weight:700;color:var(--dark)}
.article-nav a.next{text-align:right}

/* ===== 联系页 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:start}
.contact-info-card{
  background:linear-gradient(135deg,var(--dark),var(--dark-2));color:#fff;
  border-radius:var(--radius);padding:40px;height:100%;
}
.contact-info-card h3{font-size:1.4rem;font-weight:800;margin-bottom:10px}
.contact-info-card>p{color:rgba(255,255,255,.7);margin-bottom:30px}
.contact-item{display:flex;gap:16px;margin-bottom:26px;align-items:flex-start}
.contact-item .icon{
  flex:none;width:48px;height:48px;border-radius:12px;background:rgba(255,77,109,.2);
  display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:var(--primary-light);
}
.contact-item .txt h4{font-size:1rem;margin-bottom:4px}
.contact-item .txt p{color:rgba(255,255,255,.7);font-size:.92rem}
.contact-form{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:40px;box-shadow:var(--shadow)}
.contact-form h3{font-size:1.4rem;font-weight:800;margin-bottom:24px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-weight:600;margin-bottom:8px;font-size:.92rem}
.form-group input,.form-group textarea,.form-group select{
  width:100%;padding:13px 16px;border:1.5px solid var(--border);border-radius:10px;
  font-size:.95rem;font-family:inherit;transition:var(--transition);background:var(--light);
}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{
  outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(255,77,109,.1);
}
.form-group textarea{resize:vertical;min-height:130px}

/* ===== 关于页 ===== */
.team-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:26px}
.team-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);text-align:center;transition:var(--transition)}
.team-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.team-card img{width:100%;height:260px;object-fit:cover}
.team-card .body{padding:20px}
.team-card h3{font-size:1.08rem;font-weight:700}
.team-card .role{color:var(--primary);font-size:.88rem;font-weight:600;margin:4px 0 10px}
.team-card p{color:var(--gray);font-size:.88rem}
.timeline{max-width:760px;margin:0 auto;position:relative;padding-left:34px}
.timeline::before{content:'';position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--primary),var(--secondary))}
.timeline-item{position:relative;padding-bottom:36px}
.timeline-item::before{
  content:'';position:absolute;left:-32px;top:6px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--primary);
}
.timeline-item .year{font-weight:800;color:var(--primary);font-size:1.1rem;margin-bottom:6px}
.timeline-item h3{font-size:1.1rem;font-weight:700;margin-bottom:6px}
.timeline-item p{color:var(--gray);font-size:.94rem}

/* ===== 动画 ===== */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeInDown{from{opacity:0;transform:translateY(-30px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeInLeft{from{opacity:0;transform:translateX(40px)}to{opacity:1;transform:translateX(0)}}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,77,109,.45)}
  70%{box-shadow:0 0 0 18px rgba(255,77,109,0)}
  100%{box-shadow:0 0 0 0 rgba(255,77,109,0)}
}
.reveal{opacity:0;transform:translateY(36px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ===== 返回顶部 ===== */
.back-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;
  background:var(--primary);color:#fff;border:none;cursor:pointer;font-size:1.2rem;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-hover);
  opacity:0;visibility:hidden;transition:var(--transition);z-index:999;
}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{background:var(--primary-dark);transform:translateY(-4px)}

/* ===== 响应式 ===== */
@media (max-width:992px){
  .hero .container{grid-template-columns:1fr;gap:36px}
  .hero-media img{height:300px}
  .hero{min-height:auto;padding:80px 0}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:32px}
  .split.reverse .split-media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
}
@media (max-width:768px){
  .nav-toggle{display:block}
  .nav-cta{display:none}
  .nav-menu{
    position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;
    align-items:stretch;padding:16px;gap:4px;border-bottom:1px solid var(--border);
    box-shadow:var(--shadow);transform:translateY(-130%);transition:transform .35s ease;z-index:999;
  }
  .nav-menu.open{transform:translateY(0)}
  .nav-menu a{padding:14px 18px;border-radius:10px}
  .nav-menu a:hover{background:var(--light)}
  .nav-menu a::after{display:none}
  .section{padding:56px 0}
  .form-row{grid-template-columns:1fr}
  .article-nav{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{justify-content:center;text-align:center}
  .topbar .container{justify-content:center;text-align:center}
}
@media (max-width:480px){
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:16px}
  .stat-item .num{font-size:1.5rem}
  .hero-actions .btn{width:100%}
}