:root {
  --bg-deep:#050f1f; --bg-1:#0a1929; --bg-2:#0d2138; --bg-3:#122a47;
  --gold:#c8a96a; --gold-light:#e6cf94; --gold-dark:#a48851;
  --gold-line:rgba(200,169,106,.3); --gold-soft:rgba(200,169,106,.08);
  --text-1:#f0f2f5; --text-2:#b8c1cc; --text-3:#6e7b8a;
  --border-line:rgba(200,169,106,.15); --divider:rgba(255,255,255,.06);
  --serif:"Noto Serif SC","Songti SC","STSong",serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html,body{background:var(--bg-deep);color:var(--text-1);font-family:var(--sans);margin:0;padding:0;-webkit-font-smoothing:antialiased;scroll-behavior:smooth}
body{padding-top:76px;overflow-x:hidden}
.container{max-width:1240px}
a{color:var(--gold);text-decoration:none}
a:hover{color:var(--gold-light)}

.nav-wrap{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(5,15,31,.78);backdrop-filter:blur(18px) saturate(180%);border-bottom:1px solid var(--border-line)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-weight:700;font-size:22px;color:var(--text-1);letter-spacing:2px}
.brand-mark{width:36px;height:36px;background:linear-gradient(135deg,var(--gold) 0,var(--gold-dark) 100%);display:flex;align-items:center;justify-content:center;color:var(--bg-deep);font-weight:900;font-family:var(--serif);border-radius:3px;box-shadow:0 4px 14px rgba(200,169,106,.35)}
.brand-sub{font-size:11px;color:var(--gold);letter-spacing:4px;font-weight:400}
.nav-menu{display:flex;align-items:center;gap:36px}
.nav-menu .nav-link{color:var(--text-2);font-size:14px;font-weight:500;letter-spacing:1px;padding:6px 0;transition:color .25s}
.nav-menu .nav-link:hover{color:var(--gold)}
.nav-actions{display:flex;align-items:center;gap:16px}
.btn-ghost{color:var(--text-1);border:1px solid var(--border-line);padding:8px 22px;border-radius:2px;font-size:13px;letter-spacing:2px;background:transparent;cursor:pointer;transition:all .3s}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold);background:var(--gold-soft)}
.btn-gold{background:linear-gradient(135deg,var(--gold) 0,var(--gold-dark) 100%);color:var(--bg-deep);border:none;padding:9px 24px;border-radius:2px;font-size:13px;font-weight:600;letter-spacing:2px;cursor:pointer;transition:all .3s;box-shadow:0 4px 18px rgba(200,169,106,.25)}
.btn-gold:hover{transform:translateY(-1px);box-shadow:0 6px 22px rgba(200,169,106,.5);color:var(--bg-deep)}
.user-pill{display:inline-flex;align-items:center;gap:8px;color:var(--text-2);font-size:13px}
.user-pill strong{color:var(--gold);font-weight:600}

.hero{position:relative;min-height:100vh;background:radial-gradient(ellipse 1200px 600px at 50% 0%,rgba(200,169,106,.07) 0,transparent 60%),radial-gradient(ellipse 800px 400px at 50% 100%,rgba(30,75,209,.08) 0,transparent 60%),linear-gradient(180deg,var(--bg-deep) 0,var(--bg-1) 70%,var(--bg-deep) 100%);padding:140px 0 80px;overflow:hidden;display:flex;align-items:center}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(200,169,106,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(200,169,106,.04) 1px,transparent 1px);background-size:60px 60px;mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%)}
.hero-glow{position:absolute;width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,rgba(200,169,106,.15) 0,transparent 70%);top:50%;left:50%;transform:translate(-50%,-50%);filter:blur(40px);animation:pulse 6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.5;transform:translate(-50%,-50%) scale(1)}50%{opacity:.8;transform:translate(-50%,-50%) scale(1.1)}}
.hero-inner{position:relative;z-index:2;width:100%;text-align:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:14px;padding:6px 18px;border-radius:100px;border:1px solid var(--border-line);background:rgba(200,169,106,.05);color:var(--gold);font-size:12px;letter-spacing:3px;margin-bottom:36px}
.hero-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--gold);box-shadow:0 0 8px var(--gold);animation:blink 2s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}
.hero-title{font-family:var(--serif);font-weight:700;font-size:clamp(2.5rem,5.5vw,4.6rem);line-height:1.18;letter-spacing:4px;margin:0 0 22px}
.hero-title .accent{color:var(--gold);position:relative}
.hero-title .accent::after{content:'';position:absolute;left:0;right:0;bottom:-8px;height:2px;background:linear-gradient(90deg,transparent,var(--gold),transparent)}
.gold-divider{display:flex;align-items:center;justify-content:center;gap:18px;margin:32px auto}
.gold-divider .line{width:80px;height:1px;background:linear-gradient(90deg,transparent,var(--gold))}
.gold-divider .line.right{background:linear-gradient(270deg,transparent,var(--gold))}
.gold-divider .diamond{width:8px;height:8px;background:var(--gold);transform:rotate(45deg);box-shadow:0 0 12px var(--gold)}
.hero-subtitle{font-size:1.05rem;color:var(--text-2);max-width:720px;margin:0 auto 14px;line-height:1.9;letter-spacing:1px}
.hero-cta{display:flex;gap:20px;justify-content:center;margin-bottom:70px}
.btn-hero{padding:16px 42px;font-size:14px;letter-spacing:4px;border-radius:2px;font-weight:600;transition:all .35s cubic-bezier(.4,0,.2,1);display:inline-flex;align-items:center;gap:12px;cursor:pointer;border:none}
.btn-hero-primary{background:linear-gradient(135deg,var(--gold) 0,var(--gold-dark) 100%);color:var(--bg-deep);box-shadow:0 10px 30px rgba(200,169,106,.3)}
.btn-hero-primary:hover{transform:translateY(-3px);box-shadow:0 16px 40px rgba(200,169,106,.5);color:var(--bg-deep)}
.btn-hero-outline{background:transparent;color:var(--text-1);border:1px solid var(--border-line)}
.btn-hero-outline:hover{border-color:var(--gold);color:var(--gold);background:var(--gold-soft)}
.hero-product-card{max-width:760px;margin:52px auto 0;background:linear-gradient(160deg,rgba(18,42,71,.92),rgba(10,25,41,.86));border:1px solid var(--border-line);box-shadow:0 24px 80px rgba(0,0,0,.38);padding:22px 26px;text-align:left;backdrop-filter:blur(10px)}
.hero-product-card::before{content:'LIVE CONTROL CENTER';display:block;color:var(--gold);font-size:11px;letter-spacing:3px;margin-bottom:14px;font-family:'Cormorant Garamond',serif;font-style:italic}
.hero-flow-row{display:grid;grid-template-columns:18px 1fr auto;gap:12px;align-items:center;padding:12px 0;border-top:1px solid var(--divider);color:var(--text-2);font-size:13px}
.hero-flow-row:first-of-type{border-top:none}.hero-flow-row strong{color:var(--text-1);font-weight:600}.hero-flow-row code{color:var(--gold-light);font-size:12px;background:rgba(0,0,0,.25);padding:3px 8px;border-radius:3px}.hero-status-dot{width:8px;height:8px;border-radius:50%;background:var(--text-3)}.hero-status-dot.ok{background:#28c840;box-shadow:0 0 10px rgba(40,200,64,.7)}.hero-status-dot.live{background:var(--gold);box-shadow:0 0 10px var(--gold)}
.mock-card,.metric-row,.toggle-row{background:var(--bg-3);border:1px solid var(--border-line);padding:18px 20px;margin-bottom:14px;color:var(--text-2)}.mock-card b,.metric-row strong,.toggle-row b{color:var(--gold-light)}.mock-card span{display:block;color:var(--text-3);font-size:12px;margin:6px 0}.mock-card code{color:var(--gold);font-size:12px}.mock-card.muted{opacity:.82}.metric-row,.toggle-row{display:flex;justify-content:space-between;align-items:center}.metric-row strong{font-size:28px;font-family:var(--serif)}.metric-row strong.ok{color:#28c840}.feature-visual{display:flex;flex-direction:column;justify-content:center}.callback-section{background:linear-gradient(180deg,var(--bg-deep),var(--bg-1));padding-top:40px}.callback-box{display:grid;grid-template-columns:1.1fr .9fr;gap:42px;align-items:center;background:linear-gradient(160deg,var(--bg-2),var(--bg-1));border:1px solid var(--border-line);padding:46px;box-shadow:0 30px 80px rgba(0,0,0,.28)}.callback-title{font-family:var(--serif);font-size:2rem;letter-spacing:3px;line-height:1.45;margin-bottom:18px}.callback-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.callback-grid span{border:1px solid var(--border-line);background:var(--gold-soft);color:var(--gold-light);padding:18px;text-align:center;letter-spacing:2px;font-size:13px}.qs-steps-4{grid-template-columns:repeat(4,1fr)}

.section{padding:110px 0;position:relative}
.section-eyebrow{font-family:'Cormorant Garamond',serif;font-style:italic;color:var(--gold);letter-spacing:5px;font-size:14px;text-align:center;margin-bottom:14px}
.section-title{font-family:var(--serif);font-weight:700;font-size:clamp(1.8rem,3vw,2.6rem);text-align:center;color:var(--text-1);letter-spacing:4px;margin-bottom:18px}
.section-sub{text-align:center;color:var(--text-3);max-width:600px;margin:0 auto 70px;font-size:15px;line-height:1.8;letter-spacing:1px}

.cap-section{background:var(--bg-deep)}
.cap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.cap-card{background:linear-gradient(160deg,var(--bg-2) 0,var(--bg-1) 100%);border:1px solid var(--border-line);padding:40px 32px;position:relative;transition:all .4s cubic-bezier(.4,0,.2,1);overflow:hidden}
.cap-card::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--gold),transparent);opacity:0;transition:opacity .4s}
.cap-card:hover{transform:translateY(-6px);border-color:var(--gold-line)}
.cap-card:hover::before{opacity:1}
.cap-icon{width:56px;height:56px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--gold-soft),transparent);border:1px solid var(--border-line);font-size:22px;color:var(--gold);margin-bottom:28px}
.cap-title{font-family:var(--serif);font-weight:600;font-size:1.2rem;color:var(--text-1);letter-spacing:2px;margin-bottom:8px}
.cap-title-en{color:var(--gold);font-size:11px;font-family:'Cormorant Garamond',serif;font-style:italic;letter-spacing:3px;margin-bottom:18px}
.cap-desc{color:var(--text-3);font-size:14px;line-height:1.85;letter-spacing:.5px}
.cap-num{position:absolute;top:24px;right:28px;font-family:'Cormorant Garamond',serif;color:var(--gold);opacity:.25;font-size:50px;line-height:1}

.case-section{background:linear-gradient(180deg,var(--bg-deep) 0,var(--bg-1) 100%)}
.case-tabs{display:flex;justify-content:center;border-bottom:1px solid var(--border-line);margin-bottom:56px}
.case-tab{padding:18px 36px;color:var(--text-3);font-size:14px;letter-spacing:3px;cursor:pointer;background:none;border:none;position:relative;transition:color .3s}
.case-tab.active{color:var(--gold)}
.case-tab.active::after{content:'';position:absolute;bottom:-1px;left:25%;right:25%;height:2px;background:var(--gold)}
.case-tab:hover{color:var(--gold-light)}
.case-panel{display:none}
.case-panel.active{display:grid;grid-template-columns:1.1fr 1fr;gap:60px;align-items:center}
.case-tag{display:inline-block;padding:4px 14px;border:1px solid var(--gold-line);color:var(--gold);font-size:11px;letter-spacing:3px;margin-bottom:24px}
.case-heading{font-family:var(--serif);font-weight:700;font-size:1.85rem;letter-spacing:3px;line-height:1.4;margin-bottom:22px}
.case-body{color:var(--text-2);font-size:15px;line-height:1.95;margin-bottom:30px}
.case-list{list-style:none;padding:0;margin:0}
.case-list li{color:var(--text-2);font-size:14px;padding:10px 0 10px 26px;position:relative;border-bottom:1px dashed var(--divider)}
.case-list li::before{content:'◆';position:absolute;left:0;top:11px;color:var(--gold);font-size:10px}
.case-visual{background:linear-gradient(160deg,var(--bg-2),var(--bg-1));border:1px solid var(--border-line);padding:40px;min-height:340px;position:relative;overflow:hidden}
.case-visual::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent 30%,var(--gold),transparent 70%)}
.chat-bubble{background:var(--bg-3);padding:14px 18px;border-radius:14px 14px 14px 2px;margin-bottom:14px;max-width:80%;color:var(--text-1);font-size:13.5px;line-height:1.6;border:1px solid var(--border-line)}
.chat-bubble.user{background:linear-gradient(135deg,var(--gold) 0,var(--gold-dark) 100%);color:var(--bg-deep);margin-left:auto;border-radius:14px 14px 2px 14px;border:none}
.chat-bubble .meta{display:block;font-size:11px;color:var(--text-3);margin-bottom:4px}
.chat-bubble.user .meta{color:rgba(0,0,0,.6)}

.quickstart-section{background:linear-gradient(180deg,var(--bg-1) 0,var(--bg-deep) 100%);border-top:1px solid var(--border-line)}
.qs-box{max-width:920px;margin:0 auto;background:#0a0e16;border:1px solid var(--border-line);border-radius:4px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.qs-bar{display:flex;align-items:center;justify-content:space-between;background:linear-gradient(180deg,#131826,#0f1420);padding:12px 18px;border-bottom:1px solid var(--border-line)}
.qs-bar-left{display:flex;align-items:center;gap:8px}
.qs-bar-left span{width:11px;height:11px;border-radius:50%}
.qs-bar-left span:nth-child(1){background:#ff5f57}
.qs-bar-left span:nth-child(2){background:#febc2e}
.qs-bar-left span:nth-child(3){background:#28c840}
.qs-bar-title{color:var(--text-3);font-size:12px;letter-spacing:1px;margin-left:12px}
.qs-copy{background:none;border:1px solid var(--border-line);color:var(--text-3);font-size:11px;letter-spacing:1px;padding:4px 12px;border-radius:2px;cursor:pointer}
.qs-copy:hover{color:var(--gold);border-color:var(--gold)}
.qs-body{padding:32px 36px;font-family:'JetBrains Mono','Consolas',monospace;font-size:14px;line-height:2;color:#d4d4d4}
.qs-body .qs-prompt{color:var(--gold)}
.qs-body .qs-comment{color:#6a9955;font-style:italic}
.qs-steps{max-width:920px;margin:40px auto 0;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.qs-step{text-align:center;padding:24px 16px;border:1px solid var(--border-line);border-radius:4px;background:var(--gold-soft);transition:all .3s}
.qs-step:hover{border-color:var(--gold-line);transform:translateY(-2px)}
.qs-step-num{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--gold),var(--gold-dark));color:var(--bg-deep);font-weight:700;font-size:14px;margin-bottom:12px}
.qs-step-title{color:var(--text-1);font-size:14px;font-weight:600;letter-spacing:1px;margin-bottom:6px}
.qs-step-desc{color:var(--text-3);font-size:12.5px;line-height:1.6}

.pricing-section{background:var(--bg-deep)}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1100px;margin:0 auto}
.price-card{background:linear-gradient(180deg,var(--bg-2) 0,var(--bg-1) 100%);border:1px solid var(--border-line);padding:48px 36px;position:relative;transition:all .4s;display:flex;flex-direction:column}
.price-card:hover{transform:translateY(-6px)}
.price-card.featured{border-color:var(--gold);background:linear-gradient(180deg,var(--bg-3) 0,var(--bg-2) 100%);box-shadow:0 30px 60px rgba(200,169,106,.15);transform:scale(1.03)}
.price-card.featured:hover{transform:scale(1.03) translateY(-6px)}
.price-tag{position:absolute;top:-1px;right:28px;background:linear-gradient(135deg,var(--gold) 0,var(--gold-dark) 100%);color:var(--bg-deep);padding:6px 16px;font-size:11px;letter-spacing:3px;font-weight:600}
.price-name{font-family:var(--serif);font-weight:600;font-size:1.3rem;letter-spacing:3px;margin-bottom:6px}
.price-en{color:var(--gold);font-size:12px;font-family:'Cormorant Garamond',serif;font-style:italic;letter-spacing:3px;margin-bottom:28px}
.price-amount{display:flex;align-items:baseline;gap:6px;margin-bottom:8px;min-height:58px}
.price-amount .currency{color:var(--gold);font-size:18px}
.price-amount .value{font-family:var(--serif);font-weight:700;font-size:3rem;line-height:1}
.price-amount .period{color:var(--text-3);font-size:13px}
.price-note{color:var(--text-3);font-size:12px;letter-spacing:1px;padding-bottom:28px;border-bottom:1px solid var(--divider);margin-bottom:28px}
.price-features{list-style:none;padding:0;margin:0 0 36px;flex:1}
.price-features li{color:var(--text-2);font-size:13.5px;padding:9px 0 9px 24px;position:relative}
.price-features li::before{content:'\f00c';font-family:'Font Awesome 6 Free';font-weight:900;position:absolute;left:0;top:11px;color:var(--gold);font-size:11px}
.price-cta{display:block;width:100%;text-align:center;padding:14px;border:1px solid var(--border-line);color:var(--text-1);background:transparent;font-size:13px;letter-spacing:3px;cursor:pointer;transition:all .3s}
.price-cta:hover{border-color:var(--gold);color:var(--gold);background:var(--gold-soft)}
.price-card.featured .price-cta{background:linear-gradient(135deg,var(--gold) 0,var(--gold-dark) 100%);border-color:transparent;color:var(--bg-deep);font-weight:600}

.faq-section{background:var(--bg-1)}
.faq-list{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--border-line);padding:28px 0}
.faq-q{display:flex;justify-content:space-between;align-items:center;color:var(--text-1);cursor:pointer;font-family:var(--serif);font-weight:500;font-size:17px;letter-spacing:1.5px;transition:color .3s}
.faq-q:hover{color:var(--gold)}
.faq-q .toggle{color:var(--gold);font-size:18px;transition:transform .3s}
.faq-item.open .faq-q .toggle{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;color:var(--text-2);font-size:14px;line-height:1.9}
.faq-item.open .faq-a{max-height:300px;padding-top:18px}

.cta-final{background:radial-gradient(ellipse 800px 400px at 50% 0%,rgba(200,169,106,.12) 0,transparent 70%),var(--bg-deep);padding:130px 0;border-top:1px solid var(--border-line);position:relative;overflow:hidden}
.cta-inner{position:relative;z-index:2;text-align:center}

.footer{background:#030914;border-top:1px solid var(--border-line);padding:70px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:50px;margin-bottom:50px}
.footer h4{color:var(--text-1);font-family:var(--serif);font-weight:600;font-size:15px;letter-spacing:3px;margin-bottom:24px;padding-bottom:14px;position:relative}
.footer h4::after{content:'';position:absolute;left:0;bottom:0;width:30px;height:1px;background:var(--gold)}
.footer-brand{display:flex;align-items:center;gap:14px;margin-bottom:22px}
.footer-desc{color:var(--text-3);font-size:13.5px;line-height:1.9;margin-bottom:22px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:12px}
.footer-links a,.footer-links li{color:var(--text-3);font-size:13.5px}
.footer-links a:hover{color:var(--gold);padding-left:4px}
.footer-bottom{border-top:1px solid var(--divider);padding-top:24px;color:var(--text-3);font-size:12.5px}

/* ========== Modal ========== */
.modal-content{background:var(--bg-1);border:1px solid var(--border-line);border-radius:4px;color:var(--text-1)}
.auth-tabs{border-bottom:1px solid var(--border-line);padding:0;margin:0;list-style:none;display:flex}
.auth-tabs .nav-link{color:var(--text-3);font-weight:500;border:none;padding:22px 0;letter-spacing:3px;font-size:13px;background:transparent;position:relative}
.auth-tabs .nav-link.active{color:var(--gold);background:transparent}
.auth-tabs .nav-link.active::after{content:'';position:absolute;bottom:-1px;left:20%;right:20%;height:2px;background:var(--gold)}
.tab-content{padding:38px 36px}
.tab-content h4{font-family:var(--serif);font-weight:600;letter-spacing:3px;margin-bottom:30px;font-size:1.2rem}
.form-label{color:var(--text-2);font-size:12px;letter-spacing:2px;margin-bottom:8px}
.form-control{background:var(--bg-deep) !important;border:1px solid var(--border-line);color:var(--text-1);border-radius:2px;height:46px;font-size:14px;padding:10px 14px}
.form-control:focus{background:var(--bg-deep) !important;color:var(--text-1);border-color:var(--gold);box-shadow:0 0 0 3px rgba(200,169,106,.12);outline:none}
.form-control::placeholder{color:var(--text-3)}
.btn-primary{background:linear-gradient(135deg,var(--gold) 0,var(--gold-dark) 100%) !important;border:none;color:var(--bg-deep) !important;height:48px;border-radius:2px;font-size:13px;font-weight:600;letter-spacing:3px}
.btn-primary:hover{background:linear-gradient(135deg,var(--gold-light) 0,var(--gold) 100%) !important;color:var(--bg-deep) !important}
.btn-outline-primary{color:var(--gold) !important;border-color:var(--gold-line) !important;background:transparent}
.btn-outline-primary:hover{background:var(--gold-soft) !important;color:var(--gold) !important;border-color:var(--gold) !important}
.btn-outline-primary:disabled{opacity:.5}
.form-check-input{background-color:var(--bg-deep);border-color:var(--border-line)}
.form-check-input:checked{background-color:var(--gold);border-color:var(--gold)}
.form-check-label{color:var(--text-2)}

@media (max-width:992px){
  .cap-grid{grid-template-columns:repeat(2,1fr)}
  .pricing-grid{grid-template-columns:1fr;max-width:480px}
  .price-card.featured{transform:none}
  .footer-grid{grid-template-columns:1fr 1fr}
  .case-panel.active{grid-template-columns:1fr}
  .callback-box{grid-template-columns:1fr}
  .qs-steps-4{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  body{padding-top:68px}
  .nav-bar{height:68px}
  .nav-menu{display:none}
  .hero{padding:100px 0 60px;min-height:auto}
  .section{padding:80px 0}
  .cap-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-cta{flex-direction:column;align-items:center}
  .hero-flow-row{grid-template-columns:16px 1fr;gap:10px}.hero-flow-row code,.hero-flow-row span:last-child{grid-column:2}
  .qs-steps,.qs-steps-4{grid-template-columns:1fr}
  .callback-box{padding:28px}.callback-grid{grid-template-columns:1fr}
}