:root{--bts-primary:#216974;--bts-accent:#54c4b6;--bts-dark:#0f3f45;--bts-light:#fffefa}.bts-section{background:radial-gradient(circle at 30% 40%,#54c4b638 0%,#0000 45%),radial-gradient(circle at 70% 65%,#21697452 0%,#0000 50%),linear-gradient(145deg,#0a3038 0%,#0f3f45 30%,#216974 65%,#2d8a7a 100%);justify-content:center;align-items:center;width:100%;min-height:100vh;display:flex;position:relative;overflow:hidden}.bts-section:before{content:"";opacity:.35;pointer-events:none;z-index:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");position:absolute;inset:0}.stage{z-index:1;box-sizing:border-box;flex-direction:column;align-items:center;width:min(100%,1120px);padding:48px 24px 56px;display:flex;position:relative}.headline-area{text-align:center;margin-bottom:48px}.headline-area h1{letter-spacing:6px;color:#fff;font-size:58px;font-weight:300;line-height:1.1}@media (max-width:767px){.headline-area{margin-bottom:28px}.headline-area h1{letter-spacing:3px;font-size:34px}.headline-area h1 span{letter-spacing:4px}.headline-subtitle{letter-spacing:2px;font-size:10px}}.headline-area h1 span{color:var(--bts-accent);letter-spacing:8px;font-weight:800}.headline-subtitle{letter-spacing:4px;color:#ffffff73;text-transform:uppercase;margin-top:8px;font-size:13px;font-weight:400;display:block}.phone{z-index:10;width:200px;height:430px;animation:5s ease-in-out infinite phoneFloat;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}@keyframes phoneFloat{0%,to{transform:translate(-50%,-50%)translateY(0)}50%{transform:translate(-50%,-50%)translateY(-12px)}}.phone-shell{background:#0d0d0d;border-radius:40px;width:100%;height:100%;position:relative;box-shadow:0 0 0 1.5px #ffffff1f,0 30px 60px #00000080,0 0 40px #54c4b626}.carousel-wrapper{justify-content:center;align-items:center;width:min(100%,980px);max-width:calc(100vw - 48px);height:450px;display:flex;position:relative}.phone-screen{border-radius:36px;position:absolute;inset:6px;overflow:hidden}.phone-ui{pointer-events:none;background:linear-gradient(#0000 50%,#0000008c 100%);flex-direction:column;justify-content:flex-end;padding:14px 12px;display:flex;position:absolute;inset:0}.phone-story-bars{gap:3px;margin-bottom:8px;display:flex}.story-bar{background:#ffffff40;border-radius:2px;flex:1;height:2px;overflow:hidden}.story-bar-fill{background:#fff;border-radius:2px;width:0%;height:100%}.story-bar-fill.animating{width:100%;animation:linear forwards btsStoryFill}@keyframes btsStoryFill{0%{width:0%}to{width:100%}}.phone-loc{color:#ffffffa6;letter-spacing:2px;text-transform:uppercase;margin-bottom:3px;font-size:10px}.phone-slide{opacity:0;transition:opacity .8s;position:absolute;inset:0}.phone-slide.active{opacity:1}.bg{background-position:50%;background-repeat:no-repeat;background-size:cover;width:100%;height:100%}.phone-title{color:#fff;text-shadow:0 2px 8px #0006;font-size:28px;font-weight:700;line-height:1.2}.card{border-radius:20px;width:140px;height:260px;position:absolute;overflow:hidden;box-shadow:0 16px 40px #00000059}.card-slide{opacity:0;transition:opacity .8s;position:absolute;inset:0}.card-slide.active{opacity:1}.controls{align-items:center;gap:20px;margin-top:36px;display:flex}.dots{gap:7px;display:flex}.dot{cursor:pointer;background:#ffffff59;border-radius:999px;width:6px;height:6px;transition:all .3s}.dot.active{background:var(--bts-accent);width:28px;box-shadow:0 0 8px #54c4b699}.ctrl-btn{color:#fff;cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#ffffff12;border:1.5px solid #fff3;border-radius:999px;justify-content:center;align-items:center;width:40px;height:40px;font-size:16px;transition:transform .2s,background .2s,border-color .2s,box-shadow .2s;display:flex}.ctrl-btn:hover{background:#54c4b633;border-color:#54c4b699;transform:scale(1.08);box-shadow:0 0 12px #54c4b640}.slide-counter{color:#ffffff80;letter-spacing:3px;text-align:center;font-variant-numeric:tabular-nums;min-width:55px;font-size:12px}.card-l1{z-index:3;width:145px;height:260px;top:50%;left:20px;transform:translateY(-55%)rotate(-10deg)}.card-l2{z-index:4;width:120px;height:210px;top:50%;left:120px;transform:translateY(-45%)rotate(-5deg)}.card-r1{z-index:4;width:120px;height:210px;top:50%;right:120px;transform:translateY(-45%)rotate(5deg)}.card-r2{z-index:3;width:145px;height:260px;top:50%;right:20px;transform:translateY(-55%)rotate(10deg)}.card-l3{z-index:2;width:170px;height:300px;top:50%;left:-110px;transform:translateY(-60%)rotate(-14deg)}.card-r3{z-index:2;width:170px;height:300px;top:50%;right:-110px;transform:translateY(-60%)rotate(14deg)}.card-label{z-index:5;position:absolute;bottom:12px;left:10px;right:10px}.card-tag{color:#fff9;letter-spacing:1.5px;text-transform:uppercase;font-size:8px;display:block}.card-name{color:#fff;font-size:18px;font-weight:600}@keyframes floatL1{0%,to{transform:translateY(-55%)rotate(-10deg)}50%{transform:translateY(-60%)rotate(-10deg)}}@keyframes floatL2{0%,to{transform:translateY(-45%)rotate(-5deg)}50%{transform:translateY(-50%)rotate(-5deg)}}@keyframes floatR1{0%,to{transform:translateY(-45%)rotate(5deg)}50%{transform:translateY(-50%)rotate(5deg)}}@keyframes floatR2{0%,to{transform:translateY(-55%)rotate(10deg)}50%{transform:translateY(-60%)rotate(10deg)}}.card-l1{animation:4.5s ease-in-out infinite floatL1}.card-l2{animation:5s ease-in-out infinite floatL2}.card-r1{animation:4.8s ease-in-out infinite floatR1}.card-r2{animation:4.2s ease-in-out infinite floatR2}@media (max-width:1099px){.stage{padding-inline:20px}.carousel-wrapper{max-width:calc(100vw - 40px);height:400px}.phone{width:182px;height:390px}.card-l1{width:132px;height:235px;left:24px}.card-l2{width:108px;height:190px;left:130px}.card-r1{width:108px;height:190px;right:130px}.card-r2{width:132px;height:235px;right:24px}.card-l3{width:144px;height:255px;left:0;transform:translateY(-58%)rotate(-12deg)}.card-r3{width:144px;height:255px;right:0;transform:translateY(-58%)rotate(12deg)}}@media (max-width:767px){.bts-section{min-height:auto}.stage{width:100%;padding:40px 16px 48px}.carousel-wrapper{width:min(100%,380px);max-width:calc(100vw - 32px);height:520px}.phone{width:176px;height:380px;top:44%}.card{border-radius:18px;animation:none}.card-l3,.card-r3{display:none}.card-l1{width:104px;height:180px;top:34px;left:4px;transform:rotate(-10deg)}.card-r2{width:104px;height:180px;top:34px;right:4px;transform:rotate(10deg)}.card-l2{width:92px;height:150px;top:260px;left:18px;transform:rotate(-6deg)}.card-r1{width:92px;height:150px;top:260px;right:18px;transform:rotate(6deg)}.controls{flex-wrap:wrap;justify-content:center;gap:14px;margin-top:28px}.slide-counter{order:3;width:100%}}