/* roulang page: index */
:root {
            /* 主色系 */
            --color-gold: #C2853C;
            --color-deep-copper: #9B5E24;
            --color-light-gold: #EED9B8;
            --color-dark-base: #1C1915;
            --color-warm-white: #FBF7F0;
            --color-warm-sand: #F3EDE1;
            --color-pure-white: #FFFFFF;
            --color-warm-gray: #6B5E4C;
            --color-light-gray: #95897A;
            --color-cta-terracotta: #CC7A4A;
            --color-cta-terracotta-hover: #B05A30;
            --color-success-green: #6A8F72;
            --color-border: #E5D9C6;
            --color-shadow: rgba(60, 35, 15, 0.07);
            --color-shadow-hover: rgba(60, 35, 15, 0.12);
            --color-shadow-gold: rgba(194, 133, 60, 0.25);
            --color-shadow-recommend: rgba(194, 133, 60, 0.20);
            --color-placeholder: #B8A892;
            --color-dark-text: #2C2416;

            /* 字体 */
            --font-heading: 'Noto Serif SC', 'Songti SC', 'STSong', 'SimSun', '华文宋体', serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', system-ui, -apple-system, sans-serif;
            --font-number: 'DM Serif Display', 'Georgia', 'Noto Serif SC', serif;

            /* 字号 */
            --fs-h1: clamp(2.375rem, 5vw, 3.25rem);
            --fs-h2: clamp(1.75rem, 3.5vw, 2.25rem);
            --fs-h3: clamp(1.25rem, 2.5vw, 1.5rem);
            --fs-body: 0.9375rem;
            --fs-small: 0.8125rem;
            --fs-large-number: clamp(2.5rem, 6vw, 3.75rem);
            --fs-tag: 0.875rem;

            /* 间距 */
            --section-padding: clamp(3.75rem, 8vw, 7.5rem);
            --card-padding: clamp(1.5rem, 3vw, 2.25rem);
            --card-gap: clamp(1.25rem, 2.5vw, 2rem);
            --container-max: 1200px;
            --nav-height: 4.25rem;
            --topbar-height: 2.5rem;

            /* 圆角 */
            --radius-section: 16px;
            --radius-card: 12px;
            --radius-button: 8px;
            --radius-input: 8px;
            --radius-badge: 20px;

            /* 阴影 */
            --shadow-card: 0 2px 12px var(--color-shadow);
            --shadow-card-hover: 0 8px 32px var(--color-shadow-hover);
            --shadow-button: 0 2px 8px var(--color-shadow-gold);
            --shadow-recommend: 0 4px 24px var(--color-shadow-recommend);

            /* 过渡 */
            --transition-base: all 0.25s ease;
            --transition-slow: all 0.3s ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: calc(var(--nav-height) + var(--topbar-height) + 1rem);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            font-size: var(--fs-body);
            line-height: 1.8;
            color: var(--color-dark-base);
            background-color: var(--color-warm-white);
            min-width: 320px;
            overflow-x: hidden;
        }

        img {
            display: block;
            max-width: 100%;
            height: auto;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            cursor: pointer;
        }

        input {
            cursor: text;
        }

        /* 容器 */
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 clamp(1rem, 3vw, 2rem);
        }

        /* 顶部信息条 */
        .topbar {
            background-color: var(--color-dark-base);
            height: var(--topbar-height);
            display: flex;
            align-items: center;
            font-size: 0.75rem;
            color: var(--color-light-gray);
            z-index: 1001;
            position: relative;
        }
        .topbar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .topbar__left {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .topbar__left .dot {
            display: inline-block;
            width: 6px;
            height: 6px;
            background: var(--color-success-green);
            border-radius: 50%;
        }
        .topbar__right a {
            color: var(--color-gold);
            margin-left: 1.25rem;
            font-weight: 500;
            transition: var(--transition-base);
        }
        .topbar__right a:hover {
            color: var(--color-light-gold);
        }

        /* 主导航 */
        .main-nav {
            background-color: var(--color-warm-white);
            height: var(--nav-height);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--color-border);
            display: flex;
            align-items: center;
        }
        .main-nav .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 100%;
        }
        .nav__logo {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-gold);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .nav__logo span {
            color: var(--color-deep-copper);
            font-size: 0.875rem;
            font-weight: 400;
            margin-left: 0.125rem;
        }
        .nav__links {
            display: flex;
            list-style: none;
            gap: 2rem;
            align-items: center;
        }
        .nav__links a {
            font-size: 0.9375rem;
            color: var(--color-dark-base);
            font-weight: 500;
            padding: 0.25rem 0;
            position: relative;
            transition: var(--transition-base);
        }
        .nav__links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-gold);
            transition: width 0.25s ease;
        }
        .nav__links a:hover {
            color: var(--color-gold);
        }
        .nav__links a:hover::after {
            width: 100%;
        }

        /* 汉堡菜单 */
        .nav__toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 0.5rem;
            z-index: 1002;
        }
        .nav__toggle span {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--color-dark-base);
            margin: 6px 0;
            transition: var(--transition-base);
            border-radius: 2px;
        }
        .nav__toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 6px);
        }
        .nav__toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav__toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -6px);
        }

        /* 板块通用 */
        .section {
            padding: var(--section-padding) 0;
        }
        .section__header {
            text-align: center;
            margin-bottom: clamp(2.5rem, 5vw, 4rem);
        }
        .section__header h2 {
            font-family: var(--font-heading);
            font-size: var(--fs-h2);
            font-weight: 600;
            color: var(--color-dark-base);
            display: inline-block;
            position: relative;
            padding-top: 1rem;
        }
        .section__header h2::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 48px;
            height: 3px;
            background: var(--color-gold);
            border-radius: 2px;
        }
        .section__subtitle {
            color: var(--color-warm-gray);
            font-size: var(--fs-body);
            margin-top: 0.75rem;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Hero */
        .hero {
            min-height: 85vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            position: relative;
            text-align: center;
            color: #fff;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(28, 25, 21, 0.55);
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(194, 133, 60, 0.25) 0%, transparent 65%);
            pointer-events: none;
        }
        .hero__content {
            position: relative;
            z-index: 1;
            max-width: 720px;
            padding: 0 1rem;
        }
        .hero__tag {
            display: inline-block;
            font-size: var(--fs-tag);
            color: var(--color-gold);
            letter-spacing: 0.25em;
            text-transform: uppercase;
            margin-bottom: 1.5rem;
            font-weight: 500;
        }
        .hero__title {
            font-family: var(--font-heading);
            font-size: var(--fs-h1);
            font-weight: 700;
            line-height: 1.25;
            color: #fff;
            margin-bottom: 1rem;
        }
        .hero__title .accent {
            color: var(--color-gold);
        }
        .hero__decor {
            width: 60px;
            height: 2px;
            background: var(--color-gold);
            margin: 1.25rem auto;
            border-radius: 1px;
        }
        .hero__desc {
            font-size: 1.1rem;
            color: var(--color-light-gold);
            max-width: 560px;
            margin: 0 auto 2rem;
            line-height: 1.7;
        }
        .hero__actions {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.875rem 2rem;
            border-radius: var(--radius-button);
            font-weight: 600;
            font-size: 0.9375rem;
            transition: var(--transition-base);
            cursor: pointer;
            text-align: center;
            white-space: nowrap;
        }
        .btn--cta {
            background: var(--color-cta-terracotta);
            color: #fff;
            box-shadow: var(--shadow-button);
        }
        .btn--cta:hover {
            background: var(--color-cta-terracotta-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(204, 122, 74, 0.35);
        }
        .btn--cta:active {
            transform: translateY(1px);
            box-shadow: var(--shadow-button);
        }
        .btn--outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.7);
        }
        .btn--outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            transform: translateY(-2px);
        }
        .btn--primary {
            background: var(--color-gold);
            color: #fff;
            box-shadow: var(--shadow-button);
        }
        .btn--primary:hover {
            background: var(--color-deep-copper);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(194, 133, 60, 0.35);
        }
        .btn--primary:active {
            transform: translateY(1px);
        }
        .btn--secondary {
            background: transparent;
            color: var(--color-gold);
            border: 2px solid var(--color-gold);
        }
        .btn--secondary:hover {
            background: var(--color-light-gold);
            border-color: var(--color-deep-copper);
            color: var(--color-deep-copper);
            transform: translateY(-2px);
        }
        .btn--full {
            width: 100%;
            justify-content: center;
        }

        /* Services 1+3 布局 */
        .services__grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--card-gap);
            align-items: stretch;
        }
        .service-card--large {
            grid-row: span 3;
            background: var(--color-pure-white);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            transition: var(--transition-base);
            border: 1px solid var(--color-border);
        }
        .service-card--large:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .service-card--large .card__image {
            height: 260px;
            overflow: hidden;
        }
        .service-card--large .card__image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .service-card--large .card__body {
            padding: var(--card-padding);
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .service-card--large .card__body h3 {
            font-family: var(--font-heading);
            font-size: var(--fs-h3);
            font-weight: 600;
            color: var(--color-dark-base);
            margin-bottom: 0.75rem;
        }
        .service-card--large .card__body p {
            color: var(--color-warm-gray);
            margin-bottom: 1rem;
            line-height: 1.8;
        }
        .service-card--large .card__body ul {
            list-style: none;
            margin-bottom: 1.25rem;
            flex: 1;
        }
        .service-card--large .card__body ul li {
            padding: 0.35rem 0;
            color: var(--color-warm-gray);
            font-size: var(--fs-body);
            position: relative;
            padding-left: 1.5rem;
        }
        .service-card--large .card__body ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.7em;
            width: 7px;
            height: 7px;
            background: var(--color-gold);
            border-radius: 50%;
        }
        .card__link {
            color: var(--color-gold);
            font-weight: 600;
            font-size: 0.9375rem;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }
        .card__link:hover {
            color: var(--color-deep-copper);
            gap: 0.6rem;
        }
        .card__link .arrow {
            transition: var(--transition-base);
        }
        .service-card--small {
            background: var(--color-pure-white);
            border-radius: var(--radius-card);
            padding: var(--card-padding);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }
        .service-card--small::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 20% 20%, rgba(194, 133, 60, 0.04) 0%, transparent 55%);
            pointer-events: none;
            z-index: 0;
        }
        .service-card--small>* {
            position: relative;
            z-index: 1;
        }
        .service-card--small:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .service-card--small .card__icon {
            font-size: 2.5rem;
            color: var(--color-gold);
            margin-bottom: 1rem;
            transition: var(--transition-base);
        }
        .service-card--small:hover .card__icon {
            transform: scale(1.08);
        }
        .service-card--small h3 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-dark-base);
            margin-bottom: 0.5rem;
        }
        .service-card--small p {
            color: var(--color-warm-gray);
            font-size: 0.875rem;
            line-height: 1.7;
            flex: 1;
            margin-bottom: 0.75rem;
        }

        /* Scenarios */
        .scenario__row {
            display: flex;
            align-items: center;
            gap: clamp(2rem, 5vw, 4rem);
            margin-bottom: clamp(3rem, 6vw, 5rem);
        }
        .scenario__row:last-child {
            margin-bottom: 0;
        }
        .scenario__row.reverse {
            flex-direction: row-reverse;
        }
        .scenario__image {
            flex: 0 0 48%;
            max-width: 520px;
        }
        .scenario__image img {
            width: 100%;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            aspect-ratio: 4/3;
            object-fit: cover;
        }
        .scenario__text {
            flex: 1;
        }
        .scenario__text h3 {
            font-family: var(--font-heading);
            font-size: var(--fs-h3);
            font-weight: 600;
            color: var(--color-dark-base);
            margin-bottom: 0.75rem;
        }
        .scenario__text p {
            color: var(--color-warm-gray);
            margin-bottom: 1rem;
            line-height: 1.85;
        }
        .scenario__text ul {
            list-style: none;
        }
        .scenario__text ul li {
            padding: 0.4rem 0;
            color: var(--color-warm-gray);
            padding-left: 1.5rem;
            position: relative;
        }
        .scenario__text ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.65em;
            width: 8px;
            height: 8px;
            background: var(--color-gold);
            border-radius: 50%;
        }

        /* Cases / 数据 */
        .cases__stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--card-gap);
            margin-bottom: clamp(2.5rem, 5vw, 4rem);
            text-align: center;
        }
        .stat__number {
            font-family: var(--font-number);
            font-size: var(--fs-large-number);
            font-weight: 700;
            color: var(--color-gold);
            line-height: 1.1;
        }
        .stat__label {
            font-size: var(--fs-small);
            color: var(--color-warm-gray);
            margin-top: 0.5rem;
        }
        .cases__grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gap);
        }
        .case-card {
            background: var(--color-pure-white);
            border-radius: var(--radius-card);
            padding: var(--card-padding);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            border-left: 4px solid var(--color-gold);
            transition: var(--transition-base);
        }
        .case-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .case-card__quote {
            font-style: italic;
            color: var(--color-warm-gray);
            line-height: 1.8;
            margin-bottom: 1rem;
            font-size: 0.9375rem;
        }
        .case-card__author {
            font-weight: 600;
            color: var(--color-dark-base);
            font-size: 0.875rem;
        }
        .case-card__role {
            color: var(--color-light-gray);
            font-size: 0.75rem;
        }

        /* Pricing */
        .pricing__grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--card-gap);
            align-items: stretch;
        }
        .pricing-card {
            background: var(--color-pure-white);
            border-radius: var(--radius-card);
            padding: var(--card-padding);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            text-align: center;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            position: relative;
        }
        .pricing-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .pricing-card--recommend {
            transform: scale(1.05);
            border: 2px solid var(--color-gold);
            box-shadow: var(--shadow-recommend);
            z-index: 2;
        }
        .pricing-card--recommend:hover {
            transform: scale(1.05) translateY(-4px);
        }
        .pricing-card__badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-gold);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.3rem 1.25rem;
            border-radius: var(--radius-badge);
            letter-spacing: 0.05em;
            white-space: nowrap;
        }
        .pricing-card__name {
            font-family: var(--font-heading);
            font-size: var(--fs-h3);
            font-weight: 600;
            color: var(--color-dark-base);
            margin-bottom: 0.5rem;
            margin-top: 0.5rem;
        }
        .pricing-card__price {
            font-family: var(--font-number);
            font-size: 2.75rem;
            font-weight: 700;
            color: var(--color-gold);
            margin-bottom: 1.25rem;
        }
        .pricing-card__price small {
            font-size: 1rem;
            font-weight: 400;
            color: var(--color-warm-gray);
        }
        .pricing-card__features {
            list-style: none;
            text-align: left;
            margin-bottom: 1.5rem;
            flex: 1;
        }
        .pricing-card__features li {
            padding: 0.5rem 0;
            color: var(--color-warm-gray);
            font-size: 0.875rem;
            border-bottom: 1px solid var(--color-border);
            padding-left: 1.5rem;
            position: relative;
        }
        .pricing-card__features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--color-success-green);
            font-weight: 700;
        }

        /* FAQ */
        .faq__list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq__item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 0.75rem;
            overflow: hidden;
            background: var(--color-pure-white);
            transition: var(--transition-slow);
        }
        .faq__item.active {
            background: var(--color-warm-sand);
            border-color: var(--color-gold);
        }
        .faq__question {
            width: 100%;
            text-align: left;
            background: none;
            padding: 1.25rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-dark-base);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: var(--transition-base);
        }
        .faq__question .faq__icon {
            font-size: 1.25rem;
            color: var(--color-gold);
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 1rem;
        }
        .faq__item.active .faq__icon {
            transform: rotate(45deg);
        }
        .faq__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 1.5rem;
        }
        .faq__item.active .faq__answer {
            max-height: 300px;
            padding: 0 1.5rem 1.25rem;
        }
        .faq__answer p {
            color: var(--color-warm-gray);
            line-height: 1.8;
            font-size: 0.9375rem;
        }

        /* Contact CTA */
        .contact {
            background: var(--color-warm-sand);
            text-align: center;
        }
        .contact__inner {
            max-width: 600px;
            margin: 0 auto;
        }
        .contact h2 {
            font-family: var(--font-heading);
            font-size: var(--fs-h2);
            font-weight: 600;
            color: var(--color-dark-base);
            margin-bottom: 0.75rem;
        }
        .contact p {
            color: var(--color-warm-gray);
            margin-bottom: 2rem;
            font-size: 1rem;
        }
        .contact__form {
            display: flex;
            gap: 0.75rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        .contact__form input {
            flex: 1;
            min-width: 240px;
            padding: 0.875rem 1.25rem;
            border: 2px solid var(--color-border);
            border-radius: var(--radius-input);
            background: var(--color-pure-white);
            color: var(--color-dark-base);
            font-size: 0.9375rem;
            transition: var(--transition-base);
        }
        .contact__form input:focus {
            border-color: var(--color-gold);
            box-shadow: 0 0 0 3px rgba(194, 133, 60, 0.15);
        }
        .contact__form input::placeholder {
            color: var(--color-placeholder);
        }

        /* Footer */
        .footer {
            background: var(--color-dark-base);
            color: var(--color-light-gray);
            padding: clamp(2.5rem, 5vw, 4rem) 0 2rem;
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: var(--card-gap);
            margin-bottom: 2rem;
        }
        .footer__col h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            color: #fff;
            margin-bottom: 1rem;
            font-weight: 600;
        }
        .footer__col p {
            font-size: 0.875rem;
            line-height: 1.7;
        }
        .footer__col .footer__logo {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            color: var(--color-gold);
            font-weight: 700;
            margin-bottom: 0.5rem;
            display: inline-block;
        }
        .footer__col ul {
            list-style: none;
        }
        .footer__col ul li {
            margin-bottom: 0.5rem;
        }
        .footer__col ul li a {
            color: var(--color-light-gray);
            font-size: 0.875rem;
            transition: var(--transition-base);
        }
        .footer__col ul li a:hover {
            color: var(--color-gold);
        }
        .footer__bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.8125rem;
            color: var(--color-light-gray);
        }

        /* 移动端导航覆盖层 */
        .nav__overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: var(--color-warm-white);
            z-index: 999;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2rem;
        }
        .nav__overlay.active {
            display: flex;
        }
        .nav__overlay a {
            font-size: 1.25rem;
            color: var(--color-dark-base);
            font-weight: 600;
            transition: var(--transition-base);
        }
        .nav__overlay a:hover {
            color: var(--color-gold);
        }

        /* 响应式 */
        @media (max-width: 1023px) {
            .pricing__grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .pricing-card--recommend {
                transform: none;
            }
            .pricing-card--recommend:hover {
                transform: translateY(-4px);
            }
            .cases__grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cases__stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer__grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 767px) {
            .nav__links {
                display: none;
            }
            .nav__toggle {
                display: block;
            }
            .topbar__right a:first-child {
                display: none;
            }
            .hero__title {
                font-size: clamp(1.75rem, 6vw, 2.5rem);
            }
            .hero__desc {
                font-size: 0.9375rem;
            }
            .services__grid {
                grid-template-columns: 1fr;
            }
            .service-card--large {
                grid-row: span 1;
            }
            .service-card--large .card__image {
                height: 200px;
            }
            .scenario__row,
            .scenario__row.reverse {
                flex-direction: column;
            }
            .scenario__image {
                max-width: 100%;
                flex: none;
                width: 100%;
            }
            .cases__grid {
                grid-template-columns: 1fr;
            }
            .cases__stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .pricing__grid {
                grid-template-columns: 1fr 1fr;
            }
            .pricing-card--recommend {
                transform: none;
                order: -1;
            }
            .pricing-card--recommend:hover {
                transform: translateY(-4px);
            }
            .footer__grid {
                grid-template-columns: 1fr 1fr;
            }
            .contact__form {
                flex-direction: column;
            }
            .contact__form input {
                min-width: auto;
                width: 100%;
            }
            .section {
                padding: clamp(2.5rem, 6vw, 4rem) 0;
            }
        }

        @media (max-width: 520px) {
            .topbar {
                font-size: 0.7rem;
            }
            .topbar__right a {
                margin-left: 0.75rem;
                font-size: 0.7rem;
            }
            .hero__actions {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                max-width: 280px;
            }
            .cases__stats {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            .pricing__grid {
                grid-template-columns: 1fr;
                max-width: 340px;
                margin: 0 auto;
            }
            .footer__grid {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .nav__logo {
                font-size: 1.2rem;
            }
            .nav__logo span {
                font-size: 0.7rem;
            }
        }