.oval-btn{place-items: center; transition: background 0.3s ease; cursor: pointer; border-radius: 50px; font-weight: 600;}
.payment-hero {min-height: 680px; display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 70px; padding: 80px 0 110px;}
.payment-label {display: inline-block; color: #ff6b00; font-size: 13px; font-weight: 700; letter-spacing: .14em; margin-bottom: 22px;}
.payment-hero h1 {font-size: clamp(55px, 6.8vw, 100px); line-height: .88; letter-spacing: -.06em; margin: 0 0 35px;}
.payment-hero-content > p {max-width: 590px; color: #555; font-size: 22px; line-height: 1.45; margin: 0 0 45px;}
.payment-hero-bottom {align-items: center; gap: 10px; justify-content: center; grid-template-columns: 1fr auto;}
.payment-hero .btn{color: #000; background: #ff9900; width: 230px; height: 50px;}
.payment-hero .btn:hover{background: #ff7700;}
.payment-price {display: flex; flex-direction: column;}
.payment-price span {font-size: 14px; color: #777;}
.payment-price strong {font-size: 34px; line-height: 1.1;}
.payment-visual {min-height: 500px; position: relative; display: flex; align-items: center; justify-content: center;}
.payment-card {width: 82%; background: #f0f2f4; border-radius: 30px; padding: 12px; transform: rotate(-2deg); box-shadow: 0 35px 80px rgba(0,0,0,.13);}
.payment-card-top {height: 38px; display: flex; gap: 7px; align-items: center; padding: 0 12px;}
.payment-card-top span {width: 10px; height: 10px; border-radius: 50%; background: #bbb;}
.payment-card-body {background: #fff; border-radius: 20px; padding: 35px;}
.payment-product {display: grid; grid-template-columns: 100px 1fr; gap: 20px; align-items: center; margin-bottom: 30px;}
.payment-product-image {width: 100px; height: 80px; background: #e6e9ec; border-radius: 14px;}
.payment-lines i {display: block; height: 11px; background: #e1e3e5; border-radius: 5px; margin-bottom: 12px;}
.payment-lines i:nth-child(1) {width: 80%;}
.payment-lines i:nth-child(2) {width: 60%;}
.payment-lines i:nth-child(3) {width: 40%;}
.payment-form {background: #f5f5f5; border-radius: 18px; padding: 25px;}
.payment-form-title {display: block; font-weight: 700; font-size: 18px; margin-bottom: 20px;}
.payment-input {height: 43px; background: #fff; border: 1px solid #ddd; border-radius: 9px; margin-bottom: 12px;}
.payment-small-inputs {display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 18px;}
.payment-small-inputs div {height: 43px; background: #fff; border: 1px solid #ddd; border-radius: 9px;}
.payment-button {height: 48px; background: #ff6b00; border-radius: 9px; color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700;}
.payment-success {position: absolute; right: 1%; bottom: 45px; background: #fff; border-radius: 18px; padding: 17px 22px; display: flex; align-items: center; gap: 13px; box-shadow: 0 20px 50px rgba(0,0,0,.15);}
.payment-success > span {width: 38px; height: 38px; background: #ff6b00; color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 20px;}
.payment-success strong, .payment-success small {display: block;}
.payment-success small {color: #777; margin-top: 3px;}
.payment-rub {position: absolute; left: 4%; bottom: 30px; width: 90px; height: 90px; background: #171717; color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 44px; font-weight: 700; transform: rotate(-8deg);}
.payment-intro, .payment-systems, .payment-flow, .payment-cms, .payment-how, .payment-faq {padding: 110px 0;}
.payment-section-title {display: grid; grid-template-columns: 70px 1fr; gap: 25px; margin-bottom: 70px;}
.payment-section-title > span {color: #ff6b00; font-size: 15px; font-weight: 700; aspect-ratio: 1/1; display: grid; place-items: center; border: 2px solid #ff6b00;}
.payment-section-title h2 {max-width: 850px; font-size: clamp(42px, 5vw, 70px); line-height: .98; letter-spacing: -.04em; margin: 0;}
.payment-intro {border-top: 1px solid #e5e5e5; display: grid; grid-template-columns: 1fr 1fr; gap: 100px;}
.payment-intro-text {max-width: 620px;}
.payment-intro-text p {color: #555; font-size: 20px; line-height: 1.6; margin: 0 0 25px;}
.payment-systems-grid {display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px;}
.payment-system-card {background: #f4f4f4; border-radius: 25px; padding: 30px; min-height: 320px; transition: .25s;}
.payment-system-card:hover {transform: translateY(-5px);}
.payment-system-icon {width: 62px; height: 62px; border-radius: 17px; background: #ff6b00; color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 23px; margin-bottom: 25px;}
.payment-system-card h3 {font-size: 26px; margin: 0 0 15px;}
.payment-system-card p {color: #666; line-height: 1.55; margin: 0;}
.payment-work {margin: 0 calc((1400px - 100vw) / 2);}
.payment-dark {background: #151515; color: #fff; padding: 110px max(30px, calc((100vw - 1400px) / 2));}
.payment-section-title.light h2 {color: #fff;}
.payment-work-grid {display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 50px;}
.payment-work-grid > div {border-top: 1px solid #333; padding: 25px 0 45px;}
.payment-work-grid span {color: #ff6b00; font-size: 13px; font-weight: 700;}
.payment-work-grid h3 {font-size: 25px; margin: 40px 0 15px;}
.payment-work-grid p {color: #aaa; line-height: 1.55; margin: 0;}
.payment-flow-grid {display: grid; grid-template-columns: 1fr 60px 1fr 60px 1fr; align-items: center; gap: 15px;}
.payment-flow-item {background: #f4f4f4; border-radius: 25px; padding: 30px; min-height: 310px;}
.payment-flow-item > span {color: #ff6b00; font-weight: 700;}
.payment-flow-icon {width: 65px; height: 65px; border-radius: 18px; background: #171717; color: #fff; display: flex; align-items: center; justify-content: center; margin: 40px 0 25px; font-size: 27px;}
.payment-flow-icon.success {background: #ff6b00;}
.payment-flow-item h3 {font-size: 24px; line-height: 1.1; margin: 0 0 15px;}
.payment-flow-item p {color: #666; line-height: 1.5; margin: 0;}
.payment-flow-arrow {font-size: 40px; color: #ff6b00; text-align: center;}
.payment-cms-grid {display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px;}
.payment-cms-grid > div {border-top: 2px solid #111; padding-top: 25px;}
.payment-cms-grid strong {color: #ff6b00;}
.payment-cms-grid h3 {font-size: 24px; margin: 20px 0 15px;}
.payment-cms-grid p {color: #666; line-height: 1.5; margin: 0;}
.payment-result {display: grid; grid-template-columns: 1.5fr 1fr; gap: 15px; margin: 30px 0 110px;}
.payment-result-main {background: #ff6b00; color: #fff; border-radius: 28px; padding: 55px;}
.payment-result-main > span {font-size: 13px; font-weight: 700; letter-spacing: .12em;}
.payment-result-main h2 {font-size: clamp(40px, 5vw, 67px); line-height: .95; letter-spacing: -.04em; margin: 35px 0 25px;}
.payment-result-main p {max-width: 600px; font-size: 19px; line-height: 1.5; margin: 0;}
.payment-result-list {background: #171717; color: #fff; border-radius: 28px; padding: 35px;}
.payment-result-list > div {display: flex; align-items: center; gap: 20px; border-bottom: 1px solid #333; padding: 20px 0;}
.payment-result-list > div:last-child {border-bottom: 0;}
.payment-result-list strong {color: #ff6b00; font-size: 22px;}
.payment-result-list p {margin: 0; font-size: 18px;}
.payment-price-section {background: #f3f3f3; border-radius: 30px; padding: 70px; display: grid; grid-template-columns: 1.5fr 1fr; gap: 60px; align-items: center; margin-bottom: 110px;}
.payment-price-section h2 {font-size: clamp(43px, 5vw, 68px); line-height: .95; letter-spacing: -.04em; margin: 0;}
.payment-price-box {background: #151515; color: #fff; border-radius: 24px; padding: 35px;}
.payment-price-box > span {color: #aaa;}
.payment-price-box strong {display: block; font-size: 42px; margin: 10px 0 15px;}
.payment-price-box p {color: #aaa; line-height: 1.5; margin-bottom: 25px;}
.payment-price-box .btn {color: #fff; width: 230px; height: 50px; margin: 0 auto; border: 2px solid rgb(255,255,255,0.3);}
.payment-price-box .btn:hover {background: #ff7700; border: 2px solid #ff7700;}
.payment-steps {display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px;}
.payment-steps > div {border-top: 1px solid #111; padding-top: 25px;}
.payment-steps span {color: #ff6b00; font-weight: 700;}
.payment-steps h3 {font-size: 24px; margin: 20px 0 15px;}
.payment-steps p {color: #666; line-height: 1.5; margin: 0;}
.payment-faq-list {border-top: 1px solid #ddd;}
.payment-faq details {border-bottom: 1px solid #ddd;}
.payment-faq summary {cursor: pointer; list-style: none; padding: 28px 0; font-size: 23px; font-weight: 600;}
.payment-faq summary::-webkit-details-marker {display: none;}
.payment-faq summary:after {content: "+"; float: right; color: #ff6b00; font-size: 30px; font-weight: 400;}
.payment-faq details[open] summary:after {content: "−";}
.payment-faq details p {max-width: 850px; color: #666; font-size: 18px; line-height: 1.6; margin: 0; padding: 0 0 30px;}
.payment-cta {background: #ff6b00; color: #fff; border-radius: 30px; padding: 75px; margin-bottom: 100px; display: flex; align-items: flex-end; justify-content: space-between; gap: 50px;}
.payment-cta > div > span {font-size: 13px; font-weight: 700; letter-spacing: .15em;}
.payment-cta h2 {font-size: clamp(43px, 5vw, 70px); line-height: .95; letter-spacing: -.04em; margin: 20px 0;}
.payment-cta p {max-width: 550px; font-size: 19px; line-height: 1.5;}
.payment-cta .btn {background: #fff; color: #111; width: 230px; height: 50px; white-space: nowrap; border: 2px solid #fff;}
.payment-cta .btn:hover {background: #ff7700; color: #fff;}
@media (max-width: 1400px) {
    .payment-dark {padding: 110px 30px;}
    .payment-work {margin: 0;}
}
@media (max-width: 1000px) {
    .payment-hero {grid-template-columns: 1fr;}
    .payment-systems-grid {grid-template-columns: 1fr 1fr;}
    .payment-flow-grid {grid-template-columns: 1fr;}
    .payment-flow-arrow {transform: rotate(90deg);}
    .payment-cms-grid, .payment-steps {grid-template-columns: 1fr 1fr; gap: 45px 20px;}
    .payment-result {grid-template-columns: 1fr;}
    .payment-price-section {grid-template-columns: 1fr;}
    .payment-work-grid {grid-template-columns: 1fr 1fr;}
    .payment-cta {flex-direction: column; align-items: flex-start;}
    .payment-hero-bottom {grid-template-columns: auto auto; gap: clamp(100px, 3vw, 200px); justify-content: center;} 
}
@media (max-width: 700px) {
    .payment-hero {padding: 60px 0 80px;}
    .payment-hero h1 {font-size: 57px;}
    .payment-hero-content > p {font-size: 19px;}
    .payment-hero-bottom {gap: 25px;}
    .payment-card {width: 100%;}
    .payment-card-body {padding: 20px;}
    .payment-success {right: 0; bottom: 20px;}
    .payment-rub {left: 0; bottom: 20px; width: 70px; height: 70px; font-size: 32px;}
    .payment-section-title {grid-template-columns: 40px 1fr; gap: 15px; margin-bottom: 45px;}
    .payment-section-title h2 {font-size: 42px;}
    .payment-intro, .payment-systems, .payment-flow, .payment-cms, .payment-how, .payment-faq {padding: 75px 0;}
    .payment-intro {grid-template-columns: 1fr; gap: 20px;}
    .payment-systems-grid, .payment-work-grid, .payment-cms-grid, .payment-steps {grid-template-columns: 1fr;}
    .payment-dark {padding: 75px 20px;}
    .payment-work {margin: 0;}
    .payment-result-main {padding: 40px 30px;}
    .payment-price-section {padding: 40px 25px; margin-bottom: 75px;}
    .payment-cta {padding: 45px 30px; margin-bottom: 70px;}
    .payment-cta h2 {font-size: 44px;}
    .payment-flow-item, .payment-system-card {min-height: 60px;}
    .payment-work-grid h3{margin: 0;}
    .payment-flow-icon{margin: 20px 0;}
}
@media (max-width: 450px) {
    .payment-hero-bottom {grid-template-columns: auto; text-align: center;}
}