/* ============================================
   糖心vlog 全站样式表 - 原创设计
   品牌色系：甜心粉红 + 暖橙渐变 + 梦幻紫
   ============================================ */

/* CSS Reset & Base */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;color:#2D2D3A;background:#FFF5F7;line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit;transition:color .3s}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3}

/* Container */
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ============ Header / Navigation ============ */
.site-header{background:linear-gradient(135deg,#1A1A2E 0%,#2D1B4E 100%);position:sticky;top:0;z-index:1000;box-shadow:0 2px 20px rgba(0,0,0,.3)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;max-width:1200px;margin:0 auto}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:42px;width:auto}
.logo-wrap span{color:#fff;font-size:1.3rem;font-weight:700;letter-spacing:1px}
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{color:rgba(255,255,255,.85);padding:10px 16px;font-size:.95rem;transition:all .3s;border-radius:6px;position:relative}
.main-nav a:hover,.main-nav a.active{color:#FF7E5F;background:rgba(255,126,95,.1)}
.main-nav a::after{content:'';position:absolute;bottom:4px;left:50%;transform:translateX(-50%);width:0;height:2px;background:linear-gradient(90deg,#E8456B,#FF7E5F);transition:width .3s}
.main-nav a:hover::after{width:60%}
.mobile-menu-btn{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}

/* Search Bar */
.search-bar{background:rgba(26,26,46,.6);padding:10px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.search-bar .container{display:flex;justify-content:center}
.search-box{display:flex;max-width:560px;width:100%}
.search-box input{flex:1;padding:10px 18px;border:2px solid rgba(232,69,107,.4);border-right:none;border-radius:25px 0 0 25px;background:rgba(255,255,255,.08);color:#fff;font-size:.95rem;outline:none;transition:border-color .3s}
.search-box input:focus{border-color:#E8456B}
.search-box input::placeholder{color:rgba(255,255,255,.5)}
.search-box button{padding:10px 24px;background:linear-gradient(135deg,#E8456B,#FF7E5F);color:#fff;border:none;border-radius:0 25px 25px 0;cursor:pointer;font-size:.95rem;transition:opacity .3s}
.search-box button:hover{opacity:.85}

/* ============ Hero Section ============ */
.hero-section{position:relative;min-height:520px;display:flex;align-items:center;overflow:hidden;background:#1A1A2E}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.45;transition:transform 8s}
.hero-section:hover .hero-bg{transform:scale(1.05)}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(26,26,46,.7) 0%,rgba(26,26,46,.4) 50%,rgba(26,26,46,.8) 100%)}
.hero-content{position:relative;z-index:2;text-align:center;padding:60px 20px;width:100%}
.hero-content h1{font-size:2.8rem;color:#fff;margin-bottom:16px;text-shadow:0 2px 20px rgba(232,69,107,.5)}
.hero-content h1 .brand-highlight{background:linear-gradient(135deg,#E8456B,#FF7E5F);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-content p{color:rgba(255,255,255,.85);font-size:1.15rem;max-width:680px;margin:0 auto 30px}
.hero-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:30px}
.hero-tags span{background:rgba(232,69,107,.2);color:#FF7E5F;padding:6px 16px;border-radius:20px;font-size:.85rem;border:1px solid rgba(232,69,107,.3)}
.hero-btn{display:inline-block;padding:14px 36px;background:linear-gradient(135deg,#E8456B,#FF7E5F);color:#fff;border-radius:30px;font-size:1.05rem;font-weight:600;transition:all .3s;box-shadow:0 4px 20px rgba(232,69,107,.4)}
.hero-btn:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(232,69,107,.5)}

/* ============ Section Common ============ */
.section{padding:60px 0}
.section-dark{background:#1A1A2E;color:#fff}
.section-alt{background:#FFF0F3}
.section-title{text-align:center;margin-bottom:45px}
.section-title h2{font-size:2rem;margin-bottom:10px;position:relative;display:inline-block}
.section-title h2::after{content:'';display:block;width:60px;height:3px;background:linear-gradient(90deg,#E8456B,#FF7E5F);margin:10px auto 0;border-radius:2px}
.section-title p{color:#6B7280;font-size:1rem;margin-top:8px}
.section-dark .section-title p{color:rgba(255,255,255,.6)}

/* ============ Video Cards Grid ============ */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.08);transition:all .3s;cursor:pointer;position:relative}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 35px rgba(232,69,107,.15)}
.video-card .thumb{position:relative;padding-top:56.25%;overflow:hidden}
.video-card .thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .thumb img{transform:scale(1.08)}
.video-card .play-icon{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:50px;height:50px;background:rgba(232,69,107,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.video-card:hover .play-icon{opacity:1}
.play-icon::after{content:'';border-style:solid;border-width:8px 0 8px 14px;border-color:transparent transparent transparent #fff;margin-left:3px}
.video-card .card-body{padding:14px 16px}
.video-card .card-title{font-size:.95rem;font-weight:600;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-card .card-meta{display:flex;justify-content:space-between;color:#6B7280;font-size:.8rem}
.video-card .card-meta .views{color:#E8456B}
.video-card .card-tags{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}
.video-card .card-tags span{font-size:.7rem;padding:2px 8px;background:#FFF0F3;color:#E8456B;border-radius:10px}
.video-card .duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem}

/* Dark theme video cards */
.section-dark .video-card{background:#2D2D3A}
.section-dark .video-card .card-title{color:#fff}
.section-dark .video-card .card-meta{color:rgba(255,255,255,.5)}
.section-dark .video-card .card-tags span{background:rgba(232,69,107,.15)}

/* ============ Services Grid ============ */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.service-item{background:#fff;border-radius:14px;padding:32px 24px;text-align:center;transition:all .3s;border:1px solid rgba(232,69,107,.1)}
.service-item:hover{transform:translateY(-4px);box-shadow:0 10px 30px rgba(232,69,107,.12);border-color:rgba(232,69,107,.3)}
.service-icon{width:64px;height:64px;margin:0 auto 18px;background:linear-gradient(135deg,#E8456B,#FF7E5F);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:#fff}
.service-item h4{font-size:1.1rem;margin-bottom:10px;color:#2D2D3A}
.service-item p{color:#6B7280;font-size:.9rem;line-height:1.6}

/* ============ Expert Team ============ */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.expert-card{background:#fff;border-radius:14px;overflow:hidden;text-align:center;transition:all .3s;box-shadow:0 4px 15px rgba(0,0,0,.06)}
.expert-card:hover{transform:translateY(-4px);box-shadow:0 10px 30px rgba(232,69,107,.12)}
.expert-card .avatar{width:100%;aspect-ratio:1;overflow:hidden}
.expert-card .avatar img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.expert-card:hover .avatar img{transform:scale(1.05)}
.expert-card .info{padding:18px 16px}
.expert-card .info h4{font-size:1.05rem;margin-bottom:4px}
.expert-card .info .role{color:#E8456B;font-size:.85rem;margin-bottom:8px}
.expert-card .info p{color:#6B7280;font-size:.82rem;line-height:1.5}
.expert-card .actions{display:flex;gap:8px;justify-content:center;padding:0 16px 18px}
.btn-sm{padding:7px 16px;border-radius:20px;font-size:.8rem;border:none;cursor:pointer;transition:all .3s}
.btn-primary{background:linear-gradient(135deg,#E8456B,#FF7E5F);color:#fff}
.btn-outline{background:transparent;border:1px solid #E8456B;color:#E8456B}
.btn-sm:hover{opacity:.85;transform:translateY(-1px)}

/* ============ Brand Wall ============ */
.brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.brand-wall .brand-item{width:140px;height:70px;background:#fff;border-radius:10px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 10px rgba(0,0,0,.06);padding:12px;transition:all .3s;border:1px solid rgba(0,0,0,.05)}
.brand-wall .brand-item:hover{box-shadow:0 6px 20px rgba(232,69,107,.12);border-color:rgba(232,69,107,.2)}
.brand-wall .brand-item span{font-size:.85rem;font-weight:600;color:#6B7280}

/* ============ Reviews ============ */
.reviews-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.review-card{background:#fff;border-radius:14px;padding:24px;box-shadow:0 4px 15px rgba(0,0,0,.06);transition:all .3s;border-left:4px solid #E8456B}
.review-card:hover{box-shadow:0 8px 25px rgba(232,69,107,.12)}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#E8456B,#FF7E5F);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.1rem}
.review-name{font-weight:600;font-size:.95rem}
.review-date{color:#6B7280;font-size:.8rem}
.review-stars{color:#FF7E5F;font-size:.9rem;margin-bottom:8px}
.review-text{color:#4A4A5A;font-size:.9rem;line-height:1.7}

/* ============ FAQ ============ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:12px;margin-bottom:14px;overflow:hidden;box-shadow:0 2px 10px rgba(0,0,0,.05)}
.faq-question{padding:18px 24px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background .3s;font-size:.95rem}
.faq-question:hover{background:#FFF0F3}
.faq-question .arrow{transition:transform .3s;color:#E8456B;font-size:1.2rem}
.faq-item.active .faq-question .arrow{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 24px}
.faq-item.active .faq-answer{max-height:300px;padding:0 24px 18px}
.faq-answer p{color:#6B7280;font-size:.9rem;line-height:1.7}

/* ============ How-To Guide ============ */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:30px}
.step-item{text-align:center;position:relative}
.step-num{width:48px;height:48px;background:linear-gradient(135deg,#E8456B,#FF7E5F);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.2rem;font-weight:700;margin:0 auto 14px}
.step-item h4{font-size:1rem;margin-bottom:8px}
.step-item p{color:#6B7280;font-size:.85rem}

/* ============ Contact Section ============ */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.contact-card{background:#fff;border-radius:14px;padding:28px;text-align:center;box-shadow:0 4px 15px rgba(0,0,0,.06)}
.contact-card h4{font-size:1.05rem;margin-bottom:14px;color:#2D2D3A}
.contact-card p{color:#6B7280;font-size:.9rem;margin-bottom:6px}
.contact-card .qr-img{width:160px;height:160px;margin:14px auto;border-radius:10px;overflow:hidden}

/* ============ Footer ============ */
.site-footer{background:#1A1A2E;color:rgba(255,255,255,.7);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:40px}
.footer-brand .logo-wrap{margin-bottom:14px}
.footer-brand p{font-size:.88rem;line-height:1.7;color:rgba(255,255,255,.55)}
.footer-col h5{color:#fff;font-size:1rem;margin-bottom:16px;position:relative;padding-bottom:8px}
.footer-col h5::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:linear-gradient(90deg,#E8456B,#FF7E5F)}
.footer-col a{display:block;color:rgba(255,255,255,.55);font-size:.88rem;padding:4px 0;transition:color .3s}
.footer-col a:hover{color:#FF7E5F}
.footer-qr{display:flex;gap:20px;margin-top:20px}
.footer-qr .qr-wrap{text-align:center}
.footer-qr .qr-wrap img{width:110px;height:110px;border-radius:8px;margin-bottom:6px}
.footer-qr .qr-wrap span{font-size:.75rem;color:rgba(255,255,255,.5)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:.82rem;color:rgba(255,255,255,.4)}
.footer-bottom a{color:#E8456B}

/* ============ Social Share ============ */
.share-bar{display:flex;justify-content:center;gap:14px;margin-top:20px}
.share-btn{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:.85rem;transition:all .3s;cursor:pointer}
.share-btn:hover{transform:translateY(-3px)}
.share-wechat{background:#07C160}
.share-weibo{background:#E6162D}
.share-douyin{background:#000}
.share-bilibili{background:#00A1D6}

/* ============ Breadcrumb ============ */
.breadcrumb{padding:14px 0;font-size:.85rem;color:#6B7280}
.breadcrumb a{color:#E8456B}
.breadcrumb span{margin:0 6px;color:#ccc}

/* ============ Video Player Page ============ */
.video-player-wrap{background:#000;border-radius:12px;overflow:hidden;margin-bottom:30px;position:relative;padding-top:56.25%}
.video-player-wrap video{position:absolute;inset:0;width:100%;height:100%}
.video-info{margin-bottom:30px}
.video-info h1{font-size:1.6rem;margin-bottom:10px}
.video-stats{display:flex;gap:24px;color:#6B7280;font-size:.9rem;margin-bottom:14px}
.video-stats span{display:flex;align-items:center;gap:4px}
.video-desc{color:#4A4A5A;line-height:1.8;font-size:.95rem}
.related-videos h3{font-size:1.2rem;margin-bottom:20px}

/* ============ Inner Page Common ============ */
.page-hero{background:linear-gradient(135deg,#1A1A2E,#2D1B4E);padding:50px 0;text-align:center;color:#fff}
.page-hero h1{font-size:2.2rem;margin-bottom:10px}
.page-hero p{color:rgba(255,255,255,.7);font-size:1.05rem}

/* ============ Responsive ============ */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(3,1fr)}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .howto-steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .main-nav{display:none;flex-direction:column;width:100%;padding-top:10px}
  .main-nav.active{display:flex}
  .mobile-menu-btn{display:block}
  .hero-content h1{font-size:1.8rem}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .services-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .reviews-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr}
  .section{padding:40px 0}
  .search-box{max-width:100%}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .hero-content h1{font-size:1.5rem}
  .section-title h2{font-size:1.5rem}
}

/* ============ Animations ============ */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.fade-in{animation:fadeInUp .6s ease forwards}

/* Lazy load placeholder */
img[loading="lazy"]{background:#f0f0f0}

/* ============ 糖心vlog 荣誉资质 ============ */
.awards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}
.award-item {
  background: #fff;
  border-radius: 14px;
  padding: 30px 24px;
  text-align: center;
  border: 1px solid #eee;
  transition: transform .3s, box-shadow .3s;
}
.award-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(108,92,231,.12);
}
.award-icon {
  font-size: 48px;
  margin-bottom: 14px;
}
.award-item h4 {
  color: #2D2D3A;
  margin-bottom: 8px;
  font-size: 1.05rem;
}
.award-item p {
  color: #666;
  font-size: .92rem;
  line-height: 1.6;
}

/* ============ 糖心vlog 用户评价 ============ */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.review-card {
  background: #fff;
  border-radius: 14px;
  padding: 24px;
  border: 1px solid #eee;
  transition: transform .3s, box-shadow .3s;
}
.review-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(108,92,231,.1);
}
.review-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6C5CE7, #FF7E5F);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.review-name {
  font-weight: 600;
  color: #2D2D3A;
  font-size: .95rem;
}
.review-date {
  color: #999;
  font-size: .82rem;
}
.review-stars {
  color: #FFB800;
  font-size: 1.1rem;
  margin-bottom: 10px;
}
.review-text {
  color: #555;
  font-size: .92rem;
  line-height: 1.7;
}

/* ============ 糖心vlog How-To 步骤 ============ */
.howto-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}
.step-item {
  background: #fff;
  border-radius: 14px;
  padding: 30px 24px;
  text-align: center;
  border: 1px solid #eee;
  position: relative;
  transition: transform .3s, box-shadow .3s;
}
.step-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(108,92,231,.12);
}
.step-num {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6C5CE7, #a29bfe);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 auto 16px;
}
.step-item h4 {
  color: #2D2D3A;
  margin-bottom: 10px;
  font-size: 1.05rem;
}
.step-item p {
  color: #666;
  font-size: .92rem;
  line-height: 1.6;
}

/* ============ 糖心vlog 数据统计 ============ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  text-align: center;
}
.stat-item {
  padding: 20px;
}
.stat-num {
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, #FF7E5F, #FEB47B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
}
.stat-label {
  color: rgba(255,255,255,.7);
  font-size: .92rem;
}

/* ============ 糖心vlog 品牌墙 ============ */
.brand-wall {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 20px;
}
.brand-item {
  background: #fff;
  border: 1px solid #eee;
  border-radius: 10px;
  padding: 24px 16px;
  text-align: center;
  font-weight: 600;
  color: #555;
  transition: transform .3s, box-shadow .3s;
}
.brand-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0,0,0,.08);
  color: #6C5CE7;
}

/* ============ 专家卡片增强 ============ */
.expert-card .actions {
  display: flex;
  gap: 10px;
  padding: 0 20px 20px;
}
.btn-sm {
  padding: 8px 18px;
  border-radius: 8px;
  font-size: .85rem;
  cursor: pointer;
  border: none;
  font-weight: 600;
  transition: all .3s;
}
.btn-sm.btn-primary {
  background: linear-gradient(135deg, #6C5CE7, #a29bfe);
  color: #fff;
}
.btn-sm.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(108,92,231,.3);
}
.btn-sm.btn-outline {
  background: transparent;
  color: #6C5CE7;
  border: 1px solid #6C5CE7;
}
.btn-sm.btn-outline:hover {
  background: #6C5CE7;
  color: #fff;
}

/* ============ section-dark 样式 ============ */
.section-dark {
  background: #1a1a2e;
  color: #fff;
}
.section-dark .section-title h2 {
  color: #fff;
}
.section-dark .section-title p {
  color: rgba(255,255,255,.6);
}

/* ============ 分享按钮 ============ */
.share-bar {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 12px;
}
.share-btn {
  padding: 10px 24px;
  border-radius: 8px;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .3s;
  color: #fff;
}
.share-wechat { background: #07C160; }
.share-weibo { background: #E6162D; }
.share-douyin { background: #161823; }
.share-bilibili { background: #00A1D6; }
.share-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(0,0,0,.2);
}

@media(max-width:768px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-num { font-size: 1.6rem; }
  .reviews-grid { grid-template-columns: 1fr; }
  .howto-steps { grid-template-columns: repeat(2, 1fr); }
  .awards-grid { grid-template-columns: 1fr; }
}
@media(max-width:480px) {
  .howto-steps { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
}