/* ===== 四川巨石防雷科技有限公司 官网样式 ===== */
/* 设计系统：浅蓝主调 + 白黄红闪电视觉 */

:root{
  --blue-50:#eaf1fb;
  --blue-100:#dbe8f7;
  --blue-200:#bcd4ef;
  --blue-400:#6fa3e0;
  --blue-500:#3a7bd5;      /* 主色 */
  --blue-600:#2b63b0;
  --blue-900:#102a4a;      /* 深藏蓝，标题 */
  --red:#e6392f;            /* 闪电红 */
  --yellow:#f2b705;         /* 闪电黄 */
  --ink:#1f2933;
  --gray:#5b6b7b;
  --line:#e3ebf3;
  --bg:#f5f9ff;
  --white:#ffffff;
  --radius:14px;
  --shadow:0 8px 28px rgba(43,99,176,.10);
  --shadow-sm:0 3px 12px rgba(43,99,176,.08);
  --max:1160px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","WenQuanYi Micro Hei",-apple-system,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.7;font-size:15px;
}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{display:block;max-width:100%}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:12px 28px;border-radius:30px;font-size:15px;font-weight:600;cursor:pointer;
  border:2px solid transparent;transition:.25s;white-space:nowrap}
.btn-primary{background:var(--blue-500);color:#fff}
.btn-primary:hover{background:var(--blue-600);transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-ghost{background:#fff;color:var(--blue-500);border-color:var(--blue-500)}
.btn-ghost:hover{background:var(--blue-50);transform:translateY(-2px)}
.btn-sm{padding:8px 20px;font-size:13.5px}

/* ===== 导航栏 ===== */
.navbar{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:var(--max);margin:0 auto;padding:0 24px;height:68px;
  display:flex;align-items:center;gap:40px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--blue-900);letter-spacing:.5px}
.logo-mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--blue-500),var(--blue-900));
  display:grid;place-items:center;color:#fff;font-size:16px;position:relative;overflow:hidden}
.logo-mark::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(255,255,255,.5) 48%,rgba(255,255,255,.9) 50%,transparent 53%);
  transform:translateX(-120%);transition:.6s}
.logo-mark:hover::after{transform:translateX(120%)}
.nav-links{display:flex;gap:6px;margin-left:auto;align-items:center}
.nav-links a{position:relative;padding:8px 14px;border-radius:8px;font-size:14.5px;color:var(--gray);font-weight:500;transition:.2s}
.nav-links a:hover{color:var(--blue-500);background:var(--blue-50)}
.nav-links a.active{color:var(--blue-500);font-weight:600}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--blue-500);border-radius:2px}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px}
.nav-toggle span{width:22px;height:2px;background:var(--blue-900);border-radius:2px;transition:.3s}

/* ===== 通用区块 ===== */
.section{padding:88px 0}
.section-tint{background:linear-gradient(180deg,#eef4fc,#f5f9ff)}
.sec-head{text-align:center;margin-bottom:56px}
.sec-tag{display:inline-block;font-size:12.5px;letter-spacing:2px;color:var(--blue-500);
  background:var(--blue-50);padding:5px 16px;border-radius:30px;font-weight:600;margin-bottom:16px}
.sec-title{font-size:34px;font-weight:800;color:var(--blue-900);letter-spacing:1px}
.sec-rule{width:32px;height:3px;background:var(--blue-500);margin:18px auto 0;border-radius:3px}
.sec-sub{color:var(--gray);font-size:15px;margin-top:16px}

/* ===== 卡片 ===== */
.card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-sm);
  border:1px solid var(--line);transition:.3s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--blue-200)}

/* ===== 页脚 ===== */
.footer{background:var(--blue-900);color:#c7d6ea;padding:56px 0 0}
.foot-grid{max-width:var(--max);margin:0 auto;padding:0 24px;display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.foot-brand .logo{color:#fff;margin-bottom:16px}
.foot-brand p{font-size:13.5px;line-height:1.9;color:#9fb3cc}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
.foot-col a{display:block;font-size:13.5px;color:#9fb3cc;padding:5px 0;transition:.2s}
.foot-col a:hover{color:#fff;transform:translateX(4px)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding:20px 24px;
  text-align:center;font-size:12.5px;color:#7f96b3}

/* ===== 闪电装饰 SVG 通用 ===== */
.bolt{position:absolute;pointer-events:none;opacity:.9}

/* ===== 响应式 ===== */
@media(max-width:900px){
  .nav-links{position:fixed;inset:68px 0 0 0;background:#fff;flex-direction:column;
    padding:28px 24px;gap:4px;transform:translateX(100%);transition:.35s;margin:0}
  .nav-links.open{transform:translateX(0)}
  .nav-links a{padding:14px;border-radius:10px;width:100%;font-size:16px}
  .nav-toggle{display:flex;margin-left:auto}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
  .sec-title{font-size:27px}
}
@media(max-width:560px){
  .foot-grid{grid-template-columns:1fr}
  .navbar .btn{display:none}
}

/* ===== 首屏 Banner ===== */
.hero{position:relative;min-height:640px;display:flex;align-items:center;overflow:hidden;
  background:linear-gradient(135deg,#e8f0fa 0%,#f5f9ff 55%,#e3ecf8 100%)}
.hero-bg{position:absolute;inset:0}
.bolt-a{right:6%;top:-40px;transform:rotate(-6deg);filter:drop-shadow(0 0 18px rgba(255,255,255,.9))}
.bolt-b{right:20%;top:60px;transform:rotate(4deg) scale(.85);opacity:.7}
.monolith{position:absolute;right:15%;bottom:-60px;width:210px;height:340px;
  transform:perspective(900px) rotateY(-20deg) rotateX(4deg);transform-style:preserve-3d}
.monolith-face{position:absolute;inset:0;background:linear-gradient(160deg,#c9d4e2,#8d9cb3);
  border-radius:8px;box-shadow:inset 0 0 40px rgba(0,0,0,.18)}
.monolith-face.f1{transform:translateZ(26px)}
.monolith-face.f2{transform:rotateY(90deg) translateZ(110px);width:52px;left:168px;opacity:.7}
.monolith-face.f3{transform:rotateX(90deg) translateZ(110px);height:52px;top:308px;opacity:.55}
.rod{position:absolute;top:-70px;left:50%;width:5px;height:78px;margin-left:-2px;
  background:linear-gradient(180deg,#cfd8e6,#8f9cb0);border-radius:3px}
.rod::before{content:"";position:absolute;top:-10px;left:50%;width:14px;height:14px;margin-left:-7px;
  background:#e6392f;border-radius:50%;box-shadow:0 0 14px #e6392f}
.hud{position:absolute;background:rgba(255,255,255,.72);backdrop-filter:blur(8px);
  border:1px solid var(--blue-200);border-radius:10px;padding:8px 12px;font-size:11px;
  box-shadow:var(--shadow-sm);animation:hud 4s ease-in-out infinite}
.hud span{display:block;color:var(--gray);letter-spacing:1px}
.hud b{font-size:16px;color:var(--blue-600);font-weight:800}
.hud-1{top:22%;right:-10%}
.hud-2{bottom:26%;left:-22%}
.hud-3{top:46%;right:-26%}
@keyframes hud{0%,100%{transform:translateY(0);opacity:.85}50%{transform:translateY(-8px);opacity:1}}

.hero-inner{position:relative;z-index:2;width:100%}
.hero-text{max-width:560px;padding:40px 0}
.hero-en{font-size:12.5px;letter-spacing:3px;color:var(--blue-500);font-weight:600}
.hero-title{font-size:60px;font-weight:900;color:var(--blue-900);line-height:1.12;margin-top:14px;letter-spacing:2px}
.hero-rule{display:block;width:56px;height:4px;background:var(--blue-500);border-radius:4px;margin:24px 0}
.hero-list{list-style:none;margin:8px 0 34px}
.hero-list li{position:relative;padding:7px 0 7px 26px;color:var(--ink);font-size:16.5px;font-weight:500}
.hero-list li::before{content:"";position:absolute;left:0;top:15px;width:10px;height:10px;
  background:linear-gradient(135deg,var(--yellow),var(--red));border-radius:3px;transform:rotate(45deg)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ===== 业务板块 ===== */
.biz-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.biz-card{padding:30px 24px;position:relative;overflow:hidden}
.biz-card::after{content:"";position:absolute;right:-30px;top:-30px;width:90px;height:90px;
  background:var(--blue-50);border-radius:50%;transition:.4s}
.biz-card:hover::after{transform:scale(2.2)}
.biz-ic{width:56px;height:56px;border-radius:14px;display:grid;place-items:center;margin-bottom:18px;position:relative;z-index:1}
.ic-blue{background:linear-gradient(135deg,#e3f0ff,#cfe0fb);color:var(--blue-500)}
.ic-yellow{background:linear-gradient(135deg,#fff4d6,#ffe9a8);color:#c99200}
.ic-red{background:linear-gradient(135deg,#ffe3e0,#ffc9c4);color:var(--red)}
.biz-card h3{font-size:18.5px;color:var(--blue-900);margin-bottom:8px;position:relative;z-index:1}
.biz-card p{font-size:13.5px;color:var(--gray);line-height:1.75;position:relative;z-index:1}
.biz-more{display:inline-block;margin-top:16px;font-size:13px;color:var(--blue-500);font-weight:600;position:relative;z-index:1}

/* ===== 工程亮点 ===== */
.hl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.hl-card{padding:30px 24px;position:relative}
.hl-num{font-size:40px;font-weight:900;color:var(--blue-100);line-height:1;margin-bottom:14px;font-family:Georgia,serif}
.hl-card h3{font-size:16.5px;color:var(--blue-900);margin-bottom:10px}
.hl-card p{font-size:13.5px;color:var(--gray);line-height:1.8}

/* ===== 案例入口 ===== */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{padding:26px;cursor:pointer}
.case-card h3{font-size:16.5px;color:var(--blue-900);margin:12px 0 8px}
.case-card p{font-size:13.5px;color:var(--gray)}
.case-tag{display:inline-block;font-size:12px;color:#fff;background:var(--c);padding:3px 12px;border-radius:20px;font-weight:600}
.case-card:hover h3{color:var(--c)}

/* ===== 页面 Banner ===== */
.page-banner{position:relative;padding:90px 0 80px;overflow:hidden;
  background:linear-gradient(135deg,#e8f0fa,#f5f9ff 60%,#e3ecf8)}
.page-banner .container{position:relative;z-index:2}
.pb-en{font-size:12.5px;letter-spacing:3px;color:var(--blue-500);font-weight:600}
.pb-title{font-size:46px;font-weight:900;color:var(--blue-900);margin-top:10px;letter-spacing:2px}
.pb-rule{display:block;width:48px;height:4px;background:var(--blue-500);border-radius:4px;margin:20px 0}
.pb-sub,.pb-line{font-size:17px;color:var(--gray);font-weight:500}
.pb-list{list-style:none;margin:6px 0 30px;max-width:440px}
.pb-list li{position:relative;padding:6px 0 6px 24px;color:var(--ink);font-size:15.5px}
.pb-list li::before{content:"";position:absolute;left:0;top:13px;width:9px;height:9px;
  background:linear-gradient(135deg,var(--yellow),var(--red));border-radius:3px;transform:rotate(45deg)}
.pb-two{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:640px;margin:0 0 30px}
.pb-two div{background:#fff;border-radius:12px;padding:18px 20px;border:1px solid var(--line)}
.pb-two h4{font-size:15.5px;color:var(--blue-900)}
.pb-two p{font-size:13px;color:var(--gray);margin-top:4px}

/* 充电站 banner 场景 */
.pb-charging,.pb-factory{min-height:480px;display:flex;align-items:center}
.pb-scene,.pb-factory-scene{position:absolute;right:0;top:0;width:46%;height:100%;opacity:.9}
.piles{position:absolute;bottom:40px;left:14%;display:flex;gap:26px}
.pile{width:52px;height:110px;border-radius:12px;background:linear-gradient(180deg,#fff,#dfe9f6);
  border:2px solid #c3d3e8;position:relative;box-shadow:0 8px 20px rgba(43,99,176,.12)}
.pile::after{content:"";position:absolute;top:14px;left:50%;width:22px;height:6px;margin-left:-11px;
  background:var(--blue-500);border-radius:3px}
.plant{position:absolute;bottom:30px;left:10%;display:flex;align-items:flex-end;gap:18px}
.tank{width:90px;height:70px;border-radius:40px 40px 0 0;background:linear-gradient(180deg,#c3d3e8,#a8bdd6)}
.tank-s{width:60px;height:50px}
.chimney{width:18px;height:120px;background:linear-gradient(90deg,#bcd4ef,#8fa6c0);border-radius:8px}
.bolt-c,.bolt-d{position:absolute;right:24%;top:20px;transform:rotate(-4deg);
  filter:drop-shadow(0 0 14px rgba(255,255,255,.9))}
.pb-inner{max-width:560px}

/* ===== 产品页 ===== */
.prod-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.prod-card{padding:0;overflow:hidden;display:flex;flex-direction:column}
.prod-fig{background:linear-gradient(180deg,#f5f9ff,#eaf1fb);padding:22px 22px 0;border-bottom:1px solid var(--line)}
.prod-body{padding:22px 26px 26px}
.prod-cat{display:inline-block;font-size:12px;color:var(--blue-500);background:var(--blue-50);
  padding:3px 12px;border-radius:20px;font-weight:600}
.prod-body h2{font-size:20px;color:var(--blue-900);margin:12px 0 14px}
.prod-spec{display:grid;grid-template-columns:1fr 1fr;gap:8px 16px;margin-bottom:14px}
.prod-spec li{display:flex;justify-content:space-between;font-size:12.5px;color:var(--gray);
  border-bottom:1px dashed var(--line);padding-bottom:4px}
.prod-spec li b{color:var(--blue-600);font-weight:700}
.prod-desc{font-size:13.5px;color:var(--gray);line-height:1.8;margin-bottom:18px}
.why-grid,.strength-grid,.method-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.why-card,.st-card,.md-card{padding:26px 22px}
.why-n,.md-n{font-size:34px;font-weight:900;color:var(--blue-100);line-height:1;margin-bottom:12px;font-family:Georgia,serif}
.why-card h3,.st-card h3,.md-card h3{font-size:16.5px;color:var(--blue-900);margin-bottom:8px}
.why-card p,.st-card p,.md-card p{font-size:13.5px;color:var(--gray);line-height:1.8}
.st-ic{font-size:30px;margin-bottom:14px}

/* ===== 充电站页 ===== */
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pain-card,.sc-card{padding:28px 24px}
.pain-ic{width:60px;height:60px;border-radius:16px;display:grid;place-items:center;margin-bottom:18px}
.pain-card h3,.sc-card h3{font-size:17.5px;color:var(--blue-900);margin-bottom:8px}
.pain-card p,.sc-card p{font-size:13.5px;color:var(--gray);line-height:1.8}
.flow-card{padding:40px 32px;position:relative}
.flow-bolt{position:absolute;top:20px;left:0;right:0}
.flow-chain{display:flex;align-items:center;justify-content:center;gap:0;margin-top:14px}
.flow-node{text-align:center;min-width:130px}
.flow-node i{display:inline-flex;width:44px;height:44px;border-radius:50%;background:var(--blue-500);color:#fff;
  align-items:center;justify-content:center;font-size:16px;font-weight:800;font-style:normal;margin-bottom:10px}
.flow-node h4{font-size:15px;color:var(--blue-900)}
.flow-node p{font-size:12.5px;color:var(--gray)}
.flow-arrow{flex:1;height:2px;background:linear-gradient(90deg,var(--blue-500),var(--blue-200));position:relative;margin:0 6px}
.flow-arrow::after{content:"▶";position:absolute;right:-2px;top:-9px;font-size:11px;color:var(--blue-500)}
.scenario-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.sc-card{padding:26px 22px;text-align:center}
.sc-ic{font-size:34px;margin-bottom:14px}

/* ===== 工厂页 ===== */
.fac-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.fac-card{padding:30px 24px}
.fac-ic{width:64px;height:64px;border-radius:16px;display:grid;place-items:center;margin-bottom:18px}
.fac-card h3{font-size:18px;color:var(--blue-900);margin-bottom:10px}
.fac-card p{font-size:13.5px;color:var(--gray);line-height:1.8;margin-bottom:16px}
.fac-list{list-style:none;border-top:1px solid var(--line);padding-top:12px}
.fac-list li{position:relative;padding:5px 0 5px 18px;font-size:13px;color:var(--ink)}
.fac-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;background:var(--blue-500);border-radius:50%}
.proj-card{display:grid;grid-template-columns:1.1fr 1fr;overflow:hidden;padding:0}
.proj-fig{background:linear-gradient(180deg,#eaf1fb,#dfe9f6)}
.proj-body{padding:32px 34px}
.proj-tag{display:inline-block;font-size:12px;color:#fff;background:var(--blue-500);padding:3px 12px;border-radius:20px;font-weight:600}
.proj-body h3{font-size:21px;color:var(--blue-900);margin:12px 0 8px}
.proj-meta{font-size:13px;color:var(--blue-500);font-weight:600;margin-bottom:12px}
.proj-body p{font-size:14px;color:var(--gray);line-height:1.85;margin-bottom:18px}

/* ===== 工程页 ===== */
.step-chain{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:0}
.step-node{text-align:center;min-width:150px}
.step-circle{width:76px;height:76px;margin:0 auto 14px;border-radius:22px;background:linear-gradient(135deg,var(--blue-500),var(--blue-900));
  display:grid;place-items:center;box-shadow:var(--shadow)}
.step-circle span{font-size:26px;font-weight:900;color:#fff;font-family:Georgia,serif}
.step-node h3{font-size:17px;color:var(--blue-900)}
.step-node p{font-size:13px;color:var(--gray);margin-top:4px}
.step-arrow{flex:1;min-width:40px;height:3px;background:repeating-linear-gradient(90deg,var(--blue-500) 0 8px,transparent 8px 16px);margin:0 8px 40px}
.std-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.std-card{padding:26px 22px;text-align:center}
.std-card h4{font-size:18px;color:var(--blue-500);margin-bottom:6px;font-family:Georgia,serif}
.std-card p{font-size:13px;color:var(--gray)}

/* ===== 案例页 ===== */
.case-filter{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:40px}
.cf-btn{padding:8px 22px;border-radius:30px;border:1px solid var(--line);background:#fff;color:var(--gray);
  font-size:14px;cursor:pointer;transition:.25s}
.cf-btn.active,.cf-btn:hover{background:var(--blue-500);color:#fff;border-color:var(--blue-500)}
.cases-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.case-item{overflow:hidden;padding:0}
.case-fig{position:relative;background:linear-gradient(180deg,#f5f9ff,#eaf1fb)}
.case-cat{position:absolute;top:14px;left:14px;font-size:12px;color:#fff;background:var(--blue-500);
  padding:3px 12px;border-radius:20px;font-weight:600}
.case-body{padding:22px 26px 26px}
.case-body h3{font-size:18px;color:var(--blue-900);margin-bottom:8px}
.case-body p{font-size:13.5px;color:var(--gray);line-height:1.8;margin-bottom:14px}
.case-foot{display:flex;gap:16px;font-size:12.5px;color:var(--blue-600);font-weight:600;
  border-top:1px solid var(--line);padding-top:12px}
.case-item.hide{display:none}

/* ===== 联系页 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:28px;align-items:start}
.map-card,.info-card,.form-card{padding:0;overflow:hidden}
.info-card{padding:26px 26px 8px;margin-top:24px}
.ci-row{display:flex;gap:16px;padding:14px 0;border-bottom:1px solid var(--line)}
.ci-row:last-of-type{border-bottom:none}
.ci-ic{font-size:24px;line-height:1.2}
.ci-row b{display:block;font-size:14.5px;color:var(--blue-900)}
.ci-row p{font-size:13.5px;color:var(--gray)}
.hotline{background:linear-gradient(135deg,var(--blue-500),var(--blue-900));border-radius:14px;
  padding:22px 24px;color:#fff;margin:22px 0 8px}
.hotline span{display:block;font-size:12.5px;color:#cfe0fb;letter-spacing:1px}
.hotline strong{display:block;font-size:26px;font-weight:900;margin:6px 0 12px;letter-spacing:1px}
.form-card{padding:34px 32px;position:relative}
.form-badge{position:absolute;top:24px;right:24px;font-size:12px;color:var(--blue-500);background:var(--blue-50);
  padding:4px 14px;border-radius:20px;font-weight:600}
.form-card h2{font-size:24px;color:var(--blue-900)}
.form-sub{font-size:13.5px;color:var(--gray);margin:6px 0 24px}
.rf-form .fg{margin-bottom:18px}
.rf-form label{display:block;font-size:13.5px;color:var(--blue-900);font-weight:600;margin-bottom:7px}
.rf-form label em{color:var(--red);font-style:normal}
.rf-form input,.rf-form select,.rf-form textarea{width:100%;padding:11px 14px;border:1.5px solid var(--line);
  border-radius:10px;font-size:14px;font-family:inherit;color:var(--ink);background:#fff;transition:.2s;
  -webkit-appearance:none;appearance:none}
.rf-form select{background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%233a7bd5'><path d='M2 4l4 4 4-4z'/></svg>");background-repeat:no-repeat;background-position:right 14px center}
.rf-form input:focus,.rf-form select:focus,.rf-form textarea:focus{outline:none;border-color:var(--blue-500);box-shadow:0 0 0 3px rgba(58,123,213,.15)}
.rf-form textarea{resize:vertical;min-height:100px}
.rf-form.has-err input,.rf-form.has-err select,.rf-form.has-err textarea{border-color:var(--red)}
.fg-err{display:none;font-size:12px;color:var(--red);margin-top:5px}
.rf-form.has-err .fg-err{display:block}
.form-tip{font-size:12px;color:var(--gray);text-align:center;margin:14px 0 0}

@media(max-width:900px){
  .prod-grid,.cases-grid{grid-template-columns:1fr}
  .pain-grid,.fac-grid,.scenario-grid,.why-grid,.strength-grid,.method-grid,.std-grid{grid-template-columns:1fr 1fr}
  .proj-card{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .step-chain{flex-direction:column;gap:18px}
  .step-arrow{transform:rotate(90deg);margin:0 0 20px;width:40px}
  .flow-chain{flex-direction:column;gap:18px}
  .flow-arrow{transform:rotate(90deg);width:30px;margin:0}
  .pb-two{grid-template-columns:1fr}
}
@media(max-width:560px){
  .pain-grid,.fac-grid,.scenario-grid,.why-grid,.strength-grid,.method-grid,.std-grid{grid-template-columns:1fr}
  .pb-title{font-size:34px}
  .hero-title{font-size:42px}
  .section{padding:56px 0}
}