/* roulang page: index */
:root {
            --primary: #2f6fed;
            --primary-dark: #2358c7;
            --primary-soft: #eaf1ff;
            --ink: #172033;
            --body-text: #4d5b70;
            --muted: #738096;
            --cyan-gray: #7ea7b8;
            --coral: #d96b5f;
            --surface: #ffffff;
            --background: #f6f9fc;
            --background-blue: #eef4fb;
            --border: #dde6f0;
            --border-strong: #cbd8e8;
            --success: #25856c;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 8px 22px rgba(25, 55, 90, .07);
            --shadow-md: 0 16px 40px rgba(25, 55, 90, .09);
            --shadow-lg: 0 24px 70px rgba(25, 55, 90, .13);
            --transition: 200ms ease;
            --section-space: 104px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 94px;
        }

        body {
            min-width: 320px;
            margin: 0;
            padding-bottom: 106px;
            overflow-x: hidden;
            color: var(--body-text);
            background: var(--background);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            font-size: 17px;
            line-height: 1.82;
            text-rendering: optimizeLegibility;
            -webkit-font-smoothing: antialiased;
        }

        h1,
        h2,
        h3,
        h4,
        p,
        ul,
        ol,
        blockquote {
            margin-top: 0;
        }

        h1,
        h2,
        h3,
        h4 {
            color: var(--ink);
            font-weight: 760;
            letter-spacing: -.025em;
        }

        h1 {
            font-size: clamp(2.35rem, 5vw, 3.75rem);
            line-height: 1.14;
        }

        h2 {
            font-size: clamp(1.85rem, 3.4vw, 2.55rem);
            line-height: 1.27;
        }

        h3 {
            font-size: 1.35rem;
            line-height: 1.45;
        }

        p {
            margin-bottom: 1.2rem;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), background-color var(--transition), transform var(--transition), box-shadow var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
        }

        button,
        input,
        select,
        textarea {
            font: inherit;
        }

        button,
        a {
            -webkit-tap-highlight-color: transparent;
        }

        :focus-visible {
            outline: 3px solid rgba(47, 111, 237, .36) !important;
            outline-offset: 3px;
        }

        ::selection {
            color: var(--ink);
            background: #cfe0ff;
        }

        img,
        svg {
            display: block;
            max-width: 100%;
        }

        .site-container {
            width: min(1240px, calc(100% - 40px));
            margin-inline: auto;
        }

        .reading-width {
            max-width: 820px;
        }

        .section-space {
            padding-block: var(--section-space);
        }

        .section-white {
            background: var(--surface);
        }

        .section-blue {
            background: var(--background-blue);
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            margin-bottom: 18px;
            color: var(--primary-dark);
            font-size: .82rem;
            font-weight: 750;
            letter-spacing: .08em;
        }

        .eyebrow::before {
            width: 28px;
            height: 2px;
            content: "";
            background: var(--primary);
        }

        .section-heading {
            max-width: 760px;
            margin-bottom: 48px;
        }

        .section-heading p {
            max-width: 700px;
            margin: 16px 0 0;
            color: var(--muted);
        }

        .tag {
            display: inline-flex;
            align-items: center;
            min-height: 32px;
            padding: 5px 11px;
            color: var(--primary-dark);
            background: var(--primary-soft);
            border: 1px solid #d5e3ff;
            border-radius: var(--radius-sm);
            font-size: .78rem;
            font-weight: 720;
            line-height: 1.35;
        }

        .tag-warm {
            color: #9e443c;
            background: #fff0ed;
            border-color: #f4d3ce;
        }

        .btn {
            min-height: 50px;
            padding: 12px 22px;
            border: 1px solid transparent;
            border-radius: 11px;
            font-weight: 720;
            letter-spacing: .01em;
            transition: transform var(--transition), box-shadow var(--transition), color var(--transition), background var(--transition), border-color var(--transition);
        }

        .btn-primary {
            color: #fff;
            background: var(--primary);
            border-color: var(--primary);
            box-shadow: 0 10px 24px rgba(47, 111, 237, .22);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            color: #fff;
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            box-shadow: 0 14px 30px rgba(47, 111, 237, .28);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline-brand {
            color: var(--ink);
            background: #fff;
            border-color: var(--border-strong);
        }

        .btn-outline-brand:hover {
            color: var(--primary-dark);
            background: var(--primary-soft);
            border-color: #aac5f8;
            transform: translateY(-2px);
        }

        .btn:disabled,
        .btn.disabled {
            opacity: .48;
            pointer-events: none;
            box-shadow: none;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 720;
        }

        .text-link .arrow {
            transition: transform var(--transition);
        }

        .text-link:hover .arrow {
            transform: translateX(4px);
        }

        .site-header {
            position: sticky;
            z-index: 1040;
            top: 0;
            background: rgba(255, 255, 255, .96);
            border-bottom: 1px solid rgba(221, 230, 240, .92);
            transition: box-shadow var(--transition);
        }

        .site-header.is-scrolled {
            box-shadow: 0 10px 30px rgba(25, 55, 90, .08);
        }

        .navbar {
            min-height: 78px;
            padding-block: 10px;
        }

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            max-width: 355px;
            color: var(--ink);
            font-size: 1rem;
            font-weight: 800;
            line-height: 1.3;
            white-space: normal;
        }

        .navbar-brand:hover {
            color: var(--primary-dark);
        }

        .brand-mark {
            position: relative;
            flex: 0 0 36px;
            width: 36px;
            height: 36px;
            overflow: hidden;
            background: var(--primary);
            border-radius: 10px;
            box-shadow: 0 8px 18px rgba(47, 111, 237, .23);
        }

        .brand-mark::before,
        .brand-mark::after {
            position: absolute;
            content: "";
            background: #fff;
        }

        .brand-mark::before {
            top: 9px;
            left: 9px;
            width: 18px;
            height: 2px;
            box-shadow: 0 7px 0 #fff, 0 14px 0 #fff;
        }

        .brand-mark::after {
            top: 7px;
            left: 15px;
            width: 2px;
            height: 22px;
            opacity: .52;
        }

        .navbar-toggler {
            width: 46px;
            height: 46px;
            padding: 0;
            background: var(--primary-soft);
            border: 1px solid #d8e4f7;
            border-radius: 11px;
            box-shadow: none !important;
        }

        .navbar-toggler-icon {
            width: 22px;
            height: 22px;
        }

        .navbar-nav {
            align-items: center;
            gap: 5px;
        }

        .navbar .nav-link {
            position: relative;
            min-height: 44px;
            padding: 10px 15px !important;
            color: var(--body-text);
            border-radius: 10px;
            font-size: .94rem;
            font-weight: 680;
        }

        .navbar .nav-link:hover {
            color: var(--primary-dark);
            background: #f1f5fb;
        }

        .navbar .nav-link.active {
            color: var(--primary-dark);
            background: var(--primary-soft);
        }

        .navbar .nav-link.active::after {
            position: absolute;
            right: 15px;
            bottom: 5px;
            left: 15px;
            height: 2px;
            content: "";
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-cta {
            margin-left: 14px;
        }

        .mega-dropdown {
            position: static;
        }

        .mega-menu {
            right: 0;
            left: auto;
            width: min(660px, calc(100vw - 40px));
            margin-top: 12px !important;
            padding: 22px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
        }

        .mega-title {
            margin-bottom: 9px;
            color: var(--muted);
            font-size: .76rem;
            font-weight: 760;
            letter-spacing: .08em;
        }

        .mega-link {
            display: block;
            padding: 9px 10px;
            color: var(--ink);
            border-radius: 9px;
            font-size: .9rem;
            font-weight: 650;
        }

        .mega-link:hover {
            color: var(--primary-dark);
            background: var(--primary-soft);
        }

        .mega-feature {
            height: 100%;
            padding: 20px;
            background: var(--background-blue);
            border: 1px solid #d9e5f3;
            border-radius: var(--radius-md);
        }

        .mega-feature p {
            margin-bottom: 12px;
            color: var(--muted);
            font-size: .87rem;
            line-height: 1.7;
        }

        .hero {
            position: relative;
            min-height: 690px;
            overflow: hidden;
            background:
                radial-gradient(circle at 84% 22%, rgba(47, 111, 237, .12), transparent 27%),
                radial-gradient(circle at 13% 80%, rgba(126, 167, 184, .10), transparent 22%),
                #f8fbff;
        }

        .hero::before {
            position: absolute;
            inset: 0;
            content: "";
            pointer-events: none;
            opacity: .46;
            background-image:
                linear-gradient(rgba(47, 111, 237, .045) 1px, transparent 1px),
                linear-gradient(90deg, rgba(47, 111, 237, .045) 1px, transparent 1px);
            background-size: 58px 58px;
            mask-image: linear-gradient(to bottom, #000, transparent 85%);
        }

        .hero-stage {
            position: relative;
            z-index: 1;
            padding-block: 86px 74px;
        }

        .hero-content {
            max-width: 930px;
            margin-inline: auto;
            text-align: center;
        }

        .promo-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 22px;
            padding: 7px 13px;
            color: #963f37;
            background: #fff1ee;
            border: 1px solid #f2d2cc;
            border-radius: 12px;
            font-size: .83rem;
            font-weight: 760;
        }

        .promo-badge .dot {
            width: 8px;
            height: 8px;
            background: var(--coral);
            border-radius: 50%;
        }

        .hero h1 {
            max-width: 930px;
            margin: 0 auto 24px;
        }

        .hero h1 .accent {
            position: relative;
            color: var(--primary);
            white-space: nowrap;
        }

        .hero h1 .accent::after {
            position: absolute;
            right: 0;
            bottom: -4px;
            left: 0;
            height: 7px;
            content: "";
            opacity: .25;
            background: var(--primary);
            border-radius: 20px;
        }

        .hero-lead {
            max-width: 780px;
            margin: 0 auto 30px;
            color: var(--body-text);
            font-size: clamp(1.05rem, 2vw, 1.22rem);
            line-height: 1.85;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 20px;
        }

        .hero-note {
            color: var(--muted);
            font-size: .84rem;
        }

        .hero-editorial {
            position: relative;
            max-width: 1060px;
            margin: 58px auto 0;
            padding: 18px;
            background: rgba(255, 255, 255, .82);
            border: 1px solid rgba(203, 216, 232, .92);
            border-radius: 24px;
            box-shadow: var(--shadow-lg);
        }

        .hero-panel {
            min-height: 210px;
            padding: 28px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
        }

        .hero-panel-primary {
            position: relative;
            overflow: hidden;
            color: #fff;
            background: var(--primary);
            border-color: var(--primary);
        }

        .hero-panel-primary h2,
        .hero-panel-primary p {
            color: #fff;
        }

        .hero-panel-primary::after {
            position: absolute;
            right: -46px;
            bottom: -72px;
            width: 180px;
            height: 180px;
            content: "";
            border: 28px solid rgba(255, 255, 255, .13);
            border-radius: 50%;
        }

        .panel-index {
            display: block;
            margin-bottom: 28px;
            color: inherit;
            opacity: .72;
            font-size: .76rem;
            font-weight: 780;
            letter-spacing: .12em;
        }

        .hero-panel h2 {
            max-width: 390px;
            margin-bottom: 12px;
            font-size: 1.55rem;
        }

        .hero-panel p {
            max-width: 420px;
            margin-bottom: 0;
            font-size: .92rem;
            line-height: 1.75;
        }

        .burst {
            position: absolute;
            z-index: 3;
            top: -25px;
            right: -18px;
            display: grid;
            width: 102px;
            height: 102px;
            place-items: center;
            padding: 15px;
            color: #fff;
            background: var(--coral);
            clip-path: polygon(50% 0%, 61% 15%, 79% 7%, 84% 25%, 100% 28%, 90% 45%, 100% 59%, 82% 67%, 81% 87%, 61% 82%, 50% 100%, 39% 83%, 20% 91%, 17% 71%, 0 63%, 11% 47%, 2% 31%, 20% 25%, 22% 6%, 40% 15%);
            font-size: .78rem;
            font-weight: 800;
            line-height: 1.3;
            text-align: center;
            transform: rotate(8deg);
        }

        .trust-strip {
            background: #fff;
            border-block: 1px solid var(--border);
        }

        .trust-item {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            min-height: 76px;
            color: var(--ink);
            font-size: .88rem;
            font-weight: 680;
        }

        .trust-icon {
            display: grid;
            flex: 0 0 28px;
            width: 28px;
            height: 28px;
            place-items: center;
            color: var(--primary);
            background: var(--primary-soft);
            border-radius: 8px;
            font-size: .8rem;
            font-weight: 800;
        }

        .benefit-shell {
            overflow: hidden;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
        }

        .benefit-item {
            position: relative;
            min-height: 310px;
            padding: 36px;
            transition: background var(--transition);
        }

        .benefit-item:not(:last-child) {
            border-right: 1px solid var(--border);
        }

        .benefit-item:hover {
            background: #f8fbff;
        }

        .benefit-number {
            margin-bottom: 32px;
            color: #b5c8e8;
            font-size: 2.6rem;
            font-weight: 820;
            line-height: 1;
            transition: color var(--transition);
        }

        .benefit-item:hover .benefit-number {
            color: var(--primary);
        }

        .benefit-icon {
            display: grid;
            width: 44px;
            height: 44px;
            margin-bottom: 20px;
            place-items: center;
            color: var(--primary-dark);
            background: var(--primary-soft);
            border-radius: 12px;
        }

        .benefit-icon svg {
            width: 23px;
            height: 23px;
        }

        .benefit-item h3 {
            margin-bottom: 12px;
        }

        .benefit-item p {
            min-height: 88px;
            color: var(--muted);
            font-size: .94rem;
        }

        .data-band {
            color: #fff;
            background: var(--ink);
        }

        .data-band h2,
        .data-band p {
            color: #fff;
        }

        .data-intro p {
            max-width: 560px;
            margin-bottom: 0;
            color: #c6d0df;
        }

        .data-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            border: 1px solid rgba(255, 255, 255, .16);
            border-radius: var(--radius-lg);
        }

        .data-item {
            padding: 28px 25px;
        }

        .data-item:not(:last-child) {
            border-right: 1px solid rgba(255, 255, 255, .16);
        }

        .data-value {
            display: block;
            margin-bottom: 8px;
            color: #fff;
            font-size: 2.1rem;
            font-weight: 800;
            line-height: 1.1;
        }

        .data-label {
            color: #b9c6d8;
            font-size: .86rem;
        }

        .form-shell {
            overflow: hidden;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
        }

        .form-copy {
            height: 100%;
            padding: 52px;
            background: var(--background-blue);
            border-right: 1px solid var(--border);
        }

        .form-copy ul {
            padding: 0;
            margin: 28px 0 0;
            list-style: none;
        }

        .form-copy li {
            position: relative;
            padding: 13px 0 13px 31px;
            color: var(--ink);
            border-bottom: 1px solid #d9e4f1;
            font-weight: 650;
        }

        .form-copy li::before {
            position: absolute;
            top: 19px;
            left: 2px;
            width: 17px;
            height: 17px;
            content: "✓";
            color: #fff;
            background: var(--success);
            border-radius: 50%;
            font-size: 11px;
            line-height: 17px;
            text-align: center;
        }

        .form-area {
            padding: 48px;
        }

        .form-label {
            margin-bottom: 8px;
            color: var(--ink);
            font-size: .9rem;
            font-weight: 720;
        }

        .required {
            color: var(--coral);
        }

        .form-control,
        .form-select {
            min-height: 50px;
            color: var(--ink);
            background-color: #fff;
            border: 1px solid var(--border-strong);
            border-radius: 11px;
            box-shadow: none;
        }

        textarea.form-control {
            min-height: 112px;
            resize: vertical;
        }

        .form-control:focus,
        .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(47, 111, 237, .12);
        }

        .form-control::placeholder {
            color: #99a5b7;
        }

        .form-hint {
            margin-top: 14px;
            color: var(--muted);
            font-size: .8rem;
            line-height: 1.65;
        }

        .form-status {
            display: none;
            margin-top: 15px;
            padding: 12px 14px;
            color: #1d6857;
            background: #eaf8f4;
            border: 1px solid #c4e8dd;
            border-radius: 10px;
            font-size: .86rem;
        }

        .scenario-row {
            align-items: center;
            margin-bottom: 96px;
        }

        .scenario-row:last-child {
            margin-bottom: 0;
        }

        .visual-board {
            position: relative;
            min-height: 490px;
            overflow: hidden;
            padding: 30px;
            background: #dfeaf7;
            border: 1px solid #cfdeee;
            border-radius: var(--radius-xl);
        }

        .visual-board::before {
            position: absolute;
            inset: 0;
            content: "";
            background:
                linear-gradient(90deg, transparent 49.8%, rgba(47, 111, 237, .08) 50%, transparent 50.2%),
                linear-gradient(transparent 49.8%, rgba(47, 111, 237, .08) 50%, transparent 50.2%);
            background-size: 54px 54px;
        }

        .visual-page {
            position: relative;
            z-index: 1;
            width: 82%;
            min-height: 332px;
            padding: 28px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
        }

        .visual-page.offset {
            margin: 74px 0 0 auto;
        }

        .visual-line {
            height: 10px;
            margin-bottom: 12px;
            background: #dce7f4;
            border-radius: 4px;
        }

        .visual-line.primary {
            width: 55%;
            height: 18px;
            margin-bottom: 22px;
            background: var(--primary);
        }

        .visual-line.short {
            width: 62%;
        }

        .visual-blocks {
            display: grid;
            grid-template-columns: 1.3fr .7fr;
            gap: 14px;
            margin-top: 28px;
        }

        .visual-block {
            height: 104px;
            background: var(--primary-soft);
            border: 1px solid #d5e3f8;
            border-radius: 11px;
        }

        .visual-block.warm {
            background: #fff0ed;
            border-color: #efd8d3;
        }

        .visual-caption {
            position: absolute;
            z-index: 2;
            right: 18px;
            bottom: 18px;
            padding: 10px 13px;
            color: var(--ink);
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 10px;
            box-shadow: var(--shadow-sm);
            font-size: .78rem;
            font-weight: 720;
        }

        .scenario-copy {
            padding-inline: 34px;
        }

        .scenario-copy p {
            color: var(--muted);
        }

        .check-list {
            padding: 0;
            margin: 27px 0 30px;
            list-style: none;
        }

        .check-list li {
            position: relative;
            margin-bottom: 14px;
            padding-left: 30px;
            color: var(--ink);
            font-weight: 620;
        }

        .check-list li::before {
            position: absolute;
            top: 8px;
            left: 0;
            width: 18px;
            height: 18px;
            content: "";
            background: var(--primary-soft);
            border: 5px solid var(--primary);
            border-radius: 50%;
        }

        .steps-band {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1px;
            margin-top: 30px;
            overflow: hidden;
            background: #d5e2f1;
            border: 1px solid #d5e2f1;
            border-radius: var(--radius-md);
        }

        .step {
            padding: 18px;
            background: var(--background-blue);
        }

        .step span {
            display: block;
            margin-bottom: 4px;
            color: var(--primary);
            font-size: .75rem;
            font-weight: 800;
        }

        .step strong {
            color: var(--ink);
            font-size: .88rem;
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1.4fr .75fr;
            gap: 32px;
        }

        .news-list {
            overflow: hidden;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
        }

        .news-item {
            display: grid;
            grid-template-columns: 62px 1fr auto;
            gap: 22px;
            align-items: center;
            padding: 28px 30px;
            color: inherit;
            border-bottom: 1px solid var(--border);
        }

        .news-item:last-child {
            border-bottom: 0;
        }

        .news-item:hover {
            color: inherit;
            background: #f8fbff;
        }

        .news-number {
            color: #a8bbd9;
            font-size: 1.45rem;
            font-weight: 820;
        }

        .news-item:hover .news-number {
            color: var(--primary);
        }

        .news-content h3 {
            margin-bottom: 6px;
            font-size: 1.12rem;
        }

        .news-content p {
            margin-bottom: 0;
            color: var(--muted);
            font-size: .88rem;
            line-height: 1.65;
        }

        .news-arrow {
            display: grid;
            width: 38px;
            height: 38px;
            place-items: center;
            color: var(--primary);
            background: var(--primary-soft);
            border-radius: 10px;
            transition: transform var(--transition);
        }

        .news-item:hover .news-arrow {
            transform: translateX(4px);
        }

        .recommend-card {
            position: sticky;
            top: 108px;
            min-height: 100%;
            padding: 34px;
            color: #fff;
            background: var(--primary);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
        }

        .recommend-card h3,
        .recommend-card p {
            color: #fff;
        }

        .recommend-card p {
            opacity: .86;
        }

        .recommend-card .tag {
            margin-bottom: 80px;
            color: #fff;
            background: rgba(255, 255, 255, .14);
            border-color: rgba(255, 255, 255, .28);
        }

        .recommend-card .btn {
            color: var(--primary-dark);
            background: #fff;
        }

        .proof-grid {
            display: grid;
            grid-template-columns: 1.35fr .65fr;
            gap: 28px;
        }

        .quote-card {
            position: relative;
            padding: 48px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
        }

        .quote-mark {
            display: block;
            height: 53px;
            color: var(--primary);
            font-family: Georgia, serif;
            font-size: 5rem;
            line-height: 1;
        }

        .quote-card blockquote {
            margin: 16px 0 28px;
            color: var(--ink);
            font-size: clamp(1.25rem, 2.3vw, 1.7rem);
            font-weight: 680;
            line-height: 1.65;
        }

        .role-line {
            display: flex;
            align-items: center;
            gap: 13px;
            color: var(--muted);
            font-size: .88rem;
        }

        .role-avatar {
            display: grid;
            width: 44px;
            height: 44px;
            place-items: center;
            color: var(--primary);
            background: var(--primary-soft);
            border-radius: 50%;
            font-weight: 800;
        }

        .short-feedback {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .feedback-card {
            flex: 1;
            padding: 24px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
        }

        .feedback-card p {
            margin-bottom: 14px;
            color: var(--ink);
            font-size: .94rem;
        }

        .feedback-card small {
            color: var(--muted);
            font-size: .78rem;
        }

        .case-strip {
            margin-top: 30px;
            padding: 28px 32px;
            background: var(--ink);
            border-radius: var(--radius-lg);
        }

        .comparison {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 24px;
            align-items: center;
        }

        .compare-block span {
            display: block;
            margin-bottom: 6px;
            color: #9fb0c8;
            font-size: .75rem;
            font-weight: 750;
        }

        .compare-block strong {
            color: #fff;
            font-size: 1rem;
        }

        .compare-arrow {
            color: #90b3f8;
            font-size: 1.4rem;
        }

        .faq-section {
            background: var(--background-blue);
        }

        .accordion {
            display: grid;
            gap: 14px;
        }

        .accordion-item {
            overflow: hidden;
            background: #fff;
            border: 1px solid var(--border) !important;
            border-radius: var(--radius-md) !important;
            box-shadow: 0 7px 18px rgba(25, 55, 90, .04);
        }

        .accordion-button {
            min-height: 74px;
            padding: 20px 24px;
            color: var(--ink);
            background: #fff;
            box-shadow: none !important;
            font-size: 1.02rem;
            font-weight: 740;
        }

        .accordion-button:not(.collapsed) {
            color: var(--primary-dark);
            background: #f8fbff;
        }

        .accordion-button::after {
            padding: 13px;
            background-color: var(--primary-soft);
            background-position: center;
            border-radius: 9px;
        }

        .accordion-body {
            padding: 5px 24px 24px;
            color: var(--body-text);
            line-height: 1.85;
        }

        .privacy-shell {
            position: relative;
            overflow: hidden;
            padding: 54px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
        }

        .privacy-shell::after {
            position: absolute;
            top: -90px;
            right: -85px;
            width: 250px;
            height: 250px;
            content: "";
            background: var(--primary-soft);
            border-radius: 50%;
        }

        .privacy-icon {
            display: grid;
            position: relative;
            z-index: 1;
            width: 72px;
            height: 72px;
            margin-left: auto;
            place-items: center;
            color: var(--primary);
            background: var(--primary-soft);
            border: 1px solid #cfdef7;
            border-radius: 20px;
        }

        .privacy-icon svg {
            width: 34px;
        }

        .end-cta {
            margin-top: 34px;
            padding: 42px;
            color: #fff;
            background: var(--primary);
            border-radius: var(--radius-xl);
        }

        .end-cta h2,
        .end-cta p {
            color: #fff;
        }

        .end-cta p {
            margin-bottom: 0;
            opacity: .87;
        }

        .end-cta .btn-light {
            color: var(--primary-dark);
            background: #fff;
            border-color: #fff;
        }

        .end-cta .btn-light:hover {
            color: var(--primary-dark);
            background: #edf3ff;
            transform: translateY(-2px);
        }

        .site-footer {
            padding: 72px 0 128px;
            background: #edf3f8;
            border-top: 1px solid var(--border);
        }

        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            margin-bottom: 18px;
            color: var(--ink);
            font-weight: 800;
        }

        .footer-intro {
            max-width: 500px;
            color: var(--muted);
            font-size: .91rem;
        }

        .footer-title {
            margin-bottom: 15px;
            color: var(--ink);
            font-size: .86rem;
            font-weight: 780;
        }

        .footer-links {
            display: grid;
            gap: 9px;
        }

        .footer-links a {
            width: fit-content;
            color: var(--body-text);
            font-size: .9rem;
        }

        .footer-links a:hover {
            color: var(--primary);
            transform: translateX(2px);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 18px;
            margin-top: 48px;
            padding-top: 24px;
            color: var(--muted);
            border-top: 1px solid var(--border-strong);
            font-size: .8rem;
        }

        .footer-bottom-links {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
        }

        .footer-bottom a {
            color: var(--muted);
        }

        .footer-bottom a:hover {
            color: var(--primary);
        }

        .conversion-bar {
            position: fixed;
            z-index: 1050;
            right: 50%;
            bottom: 20px;
            display: flex;
            width: min(880px, calc(100% - 40px));
            min-height: 70px;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding: 10px 12px 10px 24px;
            color: #fff;
            background: var(--ink);
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: 18px;
            box-shadow: 0 20px 55px rgba(23, 32, 51, .28);
            transform: translateX(50%);
        }

        .conversion-copy {
            min-width: 0;
        }

        .conversion-copy strong {
            display: block;
            margin-bottom: 1px;
            font-size: .93rem;
        }

        .conversion-copy span {
            display: block;
            overflow: hidden;
            color: #bfc9d8;
            font-size: .78rem;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .conversion-actions {
            display: flex;
            flex: 0 0 auto;
            align-items: center;
            gap: 9px;
        }

        .conversion-actions .btn {
            min-height: 46px;
            padding: 10px 18px;
        }

        .close-bar {
            display: grid;
            width: 44px;
            height: 44px;
            place-items: center;
            color: #dce4ef;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .22);
            border-radius: 10px;
            transition: background var(--transition), color var(--transition);
        }

        .close-bar:hover {
            color: #fff;
            background: rgba(255, 255, 255, .1);
        }

        .conversion-bar.is-hidden {
            display: none;
        }

        @media (min-width: 992px) {
            .mega-dropdown:hover > .dropdown-menu {
                display: block;
            }
        }

        @media (max-width: 1199.98px) {
            :root {
                --section-space: 84px;
            }

            .navbar-brand {
                max-width: 300px;
                font-size: .92rem;
            }

            .scenario-copy {
                padding-inline: 18px;
            }
        }

        @media (max-width: 991.98px) {
            body {
                padding-bottom: 100px;
            }

            .site-container {
                width: min(100% - 36px, 900px);
            }

            .navbar {
                min-height: 72px;
            }

            .navbar-collapse {
                max-height: calc(100vh - 88px);
                overflow-y: auto;
                padding: 16px 0 20px;
                border-top: 1px solid var(--border);
            }

            .navbar-nav {
                align-items: stretch;
            }

            .navbar .nav-link {
                min-height: 48px;
            }

            .nav-cta {
                width: 100%;
                margin: 10px 0 0;
            }

            .mega-menu {
                position: static !important;
                width: 100%;
                margin: 5px 0 10px !important;
                padding: 16px;
                transform: none !important;
                box-shadow: var(--shadow-sm);
            }

            .mega-feature {
                margin-top: 12px;
            }

            .hero-stage {
                padding-block: 68px 60px;
            }

            .hero-editorial {
                margin-top: 48px;
            }

            .burst {
                right: 5px;
            }

            .benefit-item {
                min-height: auto;
            }

            .benefit-item:not(:last-child) {
                border-right: 0;
                border-bottom: 1px solid var(--border);
            }

            .benefit-item p {
                min-height: auto;
            }

            .data-grid {
                margin-top: 34px;
            }

            .form-copy {
                padding: 38px;
                border-right: 0;
                border-bottom: 1px solid var(--border);
            }

            .form-area {
                padding: 38px;
            }

            .scenario-copy {
                padding: 36px 0 0;
            }

            .scenario-row {
                margin-bottom: 74px;
            }

            .scenario-row:nth-child(2) .scenario-visual {
                order: 1;
            }

            .scenario-row:nth-child(2) .scenario-copy-wrap {
                order: 2;
            }

            .news-layout,
            .proof-grid {
                grid-template-columns: 1fr;
            }

            .recommend-card {
                position: static;
                min-height: auto;
            }

            .recommend-card .tag {
                margin-bottom: 42px;
            }

            .privacy-icon {
                margin: 24px 0 0;
            }

            .site-footer {
                padding-bottom: 120px;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --section-space: 64px;
            }

            body {
                font-size: 16px;
                line-height: 1.75;
            }

            .hero {
                min-height: auto;
            }

            .hero-stage {
                padding-block: 52px 50px;
            }

            .hero h1 .accent {
                white-space: normal;
            }

            .hero-editorial {
                padding: 12px;
                border-radius: 19px;
            }

            .hero-panel {
                min-height: 185px;
                padding: 24px;
            }

            .trust-item {
                justify-content: flex-start;
                padding-left: 18px;
                border-bottom: 1px solid var(--border);
            }

            .trust-strip .col-6:nth-last-child(-n+2) .trust-item {
                border-bottom: 0;
            }

            .data-grid {
                grid-template-columns: 1fr;
            }

            .data-item:not(:last-child) {
                border-right: 0;
                border-bottom: 1px solid rgba(255, 255, 255, .16);
            }

            .visual-board {
                min-height: 410px;
                padding: 20px;
            }

            .visual-page {
                width: 90%;
                min-height: 285px;
                padding: 22px;
            }

            .visual-page.offset {
                margin-top: 55px;
            }

            .steps-band {
                grid-template-columns: 1fr;
            }

            .news-item {
                grid-template-columns: 46px 1fr;
                gap: 14px;
                padding: 23px 20px;
            }

            .news-arrow {
                display: none;
            }

            .quote-card,
            .privacy-shell {
                padding: 32px 26px;
            }

            .comparison {
                grid-template-columns: 1fr;
            }

            .compare-arrow {
                transform: rotate(90deg);
            }

            .end-cta {
                padding: 32px 26px;
            }

            .conversion-bar {
                right: 0;
                bottom: 0;
                left: 0;
                width: 100%;
                min-height: 82px;
                padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
                border-radius: 0;
                transform: none;
            }

            .conversion-copy span {
                max-width: 270px;
            }
        }

        @media (max-width: 575.98px) {
            .site-container {
                width: calc(100% - 36px);
            }

            .navbar-brand {
                max-width: 235px;
                font-size: .81rem;
            }

            .brand-mark {
                flex-basis: 32px;
                width: 32px;
                height: 32px;
            }

            .brand-mark::before {
                top: 8px;
                left: 8px;
                width: 16px;
                box-shadow: 0 6px 0 #fff, 0 12px 0 #fff;
            }

            .brand-mark::after {
                top: 6px;
                left: 14px;
                height: 20px;
            }

            .hero-actions {
                display: grid;
                grid-template-columns: 1fr;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .promo-badge {
                font-size: .76rem;
            }

            .burst {
                top: -15px;
                right: -7px;
                width: 82px;
                height: 82px;
                font-size: .68rem;
            }

            .benefit-item {
                padding: 29px 25px;
            }

            .form-copy,
            .form-area {
                padding: 29px 23px;
            }

            .visual-board {
                min-height: 350px;
            }

            .visual-page {
                width: 94%;
                min-height: 245px;
            }

            .visual-blocks {
                grid-template-columns: 1fr;
            }

            .visual-block {
                height: 58px;
            }

            .visual-caption {
                right: 12px;
                bottom: 12px;
            }

            .news-number {
                font-size: 1.1rem;
            }

            .quote-card blockquote {
                font-size: 1.15rem;
            }

            .end-cta .btn {
                width: 100%;
                margin-top: 9px;
            }

            .conversion-copy span {
                display: none;
            }

            .conversion-actions {
                gap: 6px;
            }

            .conversion-actions .btn {
                padding-inline: 12px;
                font-size: .82rem;
            }

            .close-bar {
                width: 42px;
                height: 42px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }

            *,
            *::before,
            *::after {
                scroll-behavior: auto !important;
                transition-duration: .01ms !important;
                animation-duration: .01ms !important;
                animation-iteration-count: 1 !important;
            }
        }

/* roulang page: category1 */
:root {
      --primary: #2f6fed;
      --primary-dark: #2358c7;
      --primary-soft: #eaf1ff;
      --ink: #172033;
      --body-text: #4d5b70;
      --muted: #738096;
      --cyan-gray: #7ea7b8;
      --coral: #d96b5f;
      --surface: #ffffff;
      --background: #f6f9fc;
      --background-blue: #eef4fb;
      --border: #dde6f0;
      --border-strong: #cbd8e8;
      --success: #25856c;
      --radius-sm: 10px;
      --radius-md: 16px;
      --radius-lg: 20px;
      --radius-xl: 28px;
      --shadow-sm: 0 8px 22px rgba(25,55,90,.07);
      --shadow-md: 0 16px 40px rgba(25,55,90,.09);
      --shadow-lg: 0 24px 70px rgba(25,55,90,.13);
      --transition: 200ms ease;
      --section-space: 92px;
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 94px; }
    body {
      min-width: 320px;
      margin: 0;
      padding-bottom: 34px;
      overflow-x: hidden;
      color: var(--body-text);
      background: var(--background);
      font-family: "PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
      font-size: 17px;
      line-height: 1.82;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
    }
    a { color: var(--primary); text-decoration: none; transition: color var(--transition),background-color var(--transition),transform var(--transition),box-shadow var(--transition); }
    a:hover { color: var(--primary-dark); }
    button, input, select, textarea { font: inherit; }
    button, a { -webkit-tap-highlight-color: transparent; }
    img, svg { display: block; max-width: 100%; }
    h1, h2, h3, p { overflow-wrap: anywhere; }
    h1, h2, h3 { color: var(--ink); font-weight: 800; letter-spacing: -.035em; }
    h1 { font-size: clamp(2.35rem,4.5vw,4rem); line-height: 1.16; }
    h2 { font-size: clamp(1.8rem,3vw,2.55rem); line-height: 1.25; }
    h3 { font-size: 1.3rem; line-height: 1.4; }
    .site-container { width: min(1240px,calc(100% - 40px)); margin-inline: auto; }
    .section-space { padding-block: var(--section-space); }
    .section-white { background: var(--surface); }
    .section-blue { background: var(--background-blue); }
    .eyebrow {
      display: inline-flex; align-items: center; gap: 9px; margin-bottom: 16px;
      color: var(--primary-dark); font-size: .8rem; font-weight: 800; letter-spacing: .08em;
    }
    .eyebrow::before { width: 28px; height: 2px; content: ""; background: var(--primary); }
    .section-heading { max-width: 760px; margin-bottom: 42px; }
    .section-heading p { max-width: 700px; margin: 15px 0 0; color: var(--muted); }
    .tag {
      display: inline-flex; align-items: center; min-height: 32px; padding: 5px 11px;
      color: var(--primary-dark); background: var(--primary-soft); border: 1px solid #d5e3ff;
      border-radius: var(--radius-sm); font-size: .78rem; font-weight: 750; line-height: 1.35;
    }
    .tag-warm { color: #9e443c; background: #fff0ed; border-color: #f4d3ce; }
    .btn {
      min-height: 50px; padding: 12px 22px; border: 1px solid transparent; border-radius: 11px;
      font-weight: 750; letter-spacing: .01em;
      transition: transform var(--transition),box-shadow var(--transition),color var(--transition),background var(--transition),border-color var(--transition);
    }
    .btn-primary { color: #fff; background: var(--primary); border-color: var(--primary); box-shadow: 0 10px 24px rgba(47,111,237,.22); }
    .btn-primary:hover,.btn-primary:focus { color:#fff; background:var(--primary-dark); border-color:var(--primary-dark); box-shadow:0 14px 30px rgba(47,111,237,.28); transform:translateY(-2px); }
    .btn-primary:active { transform: translateY(0); }
    .btn-outline-brand { color:var(--ink); background:#fff; border-color:var(--border-strong); }
    .btn-outline-brand:hover { color:var(--primary-dark); background:var(--primary-soft); border-color:#aac5f8; transform:translateY(-2px); }
    .btn:disabled,.btn.disabled { opacity:.48; pointer-events:none; box-shadow:none; }
    .text-link { display:inline-flex; align-items:center; gap:8px; font-weight:750; }
    .text-link .arrow { transition:transform var(--transition); }
    .text-link:hover .arrow { transform:translateX(4px); }

    .site-header {
      position: sticky; z-index:1040; top:0; background:rgba(255,255,255,.97);
      border-bottom:1px solid rgba(221,230,240,.92); transition:box-shadow var(--transition);
    }
    .site-header.is-scrolled { box-shadow:0 10px 30px rgba(25,55,90,.08); }
    .navbar { min-height:78px; padding-block:10px; }
    .navbar-brand,.footer-brand { display:inline-flex; align-items:center; gap:11px; color:var(--ink); font-weight:800; line-height:1.3; }
    .navbar-brand { max-width:355px; font-size:1rem; }
    .navbar-brand:hover,.footer-brand:hover { color:var(--primary-dark); }
    .brand-mark {
      width:28px; height:28px; flex:0 0 28px; display:inline-block; position:relative;
      background:var(--primary); border-radius:9px;
    }
    .brand-mark::after { position:absolute; right:5px; bottom:5px; width:9px; height:9px; content:""; background:#fff; border-radius:3px; opacity:.9; }
    .navbar-nav { align-items:center; gap:7px; }
    .nav-link { position:relative; padding:10px 14px!important; color:var(--body-text); border-radius:10px; font-size:.95rem; font-weight:700; }
    .nav-link:hover { color:var(--primary-dark); background:var(--primary-soft); }
    .nav-link.active { color:var(--primary-dark); background:var(--primary-soft); }
    .nav-link.active::after { position:absolute; left:14px; right:14px; bottom:4px; height:2px; content:""; background:var(--primary); }
    .navbar-toggler { padding:8px 10px; border:1px solid var(--border-strong); border-radius:10px; }
    .navbar-toggler:focus { box-shadow:0 0 0 3px rgba(47,111,237,.2); }
    .navbar-toggler-icon { width:1.25em; height:1.25em; }
    .nav-cta { margin-left:12px; min-height:44px; padding:9px 17px; border-radius:10px; font-size:.9rem; }
    .more-menu { position:relative; }
    .more-toggle { border:0; background:transparent; }
    .mega-panel {
      width:650px; padding:23px; position:absolute; right:0; top:calc(100% + 13px); display:none;
      background:#fff; border:1px solid var(--border); border-radius:20px; box-shadow:var(--shadow-lg);
    }
    .more-menu:hover .mega-panel,.more-menu:focus-within .mega-panel,.mega-panel.show { display:block; }
    .mega-title { margin-bottom:9px; color:var(--muted); font-size:.77rem; font-weight:800; letter-spacing:.08em; }
    .mega-link { display:block; padding:6px 0; color:var(--ink); font-size:.93rem; font-weight:700; }
    .mega-link:hover { color:var(--primary); transform:translateX(3px); }
    .mega-feature { height:100%; padding:18px; background:var(--background-blue); border:1px solid var(--border); border-radius:15px; }
    .mega-feature h3 { margin:10px 0 7px; font-size:1.1rem; }
    .mega-feature p { margin:0; color:var(--muted); font-size:.88rem; line-height:1.65; }

    .page-head { padding:62px 0 54px; background:#fff; border-bottom:1px solid var(--border); }
    .breadcrumb { margin:0 0 24px; font-size:.84rem; }
    .breadcrumb-item a { color:var(--muted); }
    .breadcrumb-item.active { color:var(--primary-dark); font-weight:700; }
    .page-head h1 { max-width:850px; margin:0 0 20px; }
    .page-intro { max-width:820px; margin:0 0 24px; color:var(--body-text); font-size:1.05rem; }
    .topic-tags { display:flex; flex-wrap:wrap; gap:9px; }

    .feature-area { padding:74px 0 88px; }
    .feature-grid { display:grid; grid-template-columns:minmax(0,1.7fr) minmax(280px,1fr); gap:24px; align-items:stretch; }
    .feature-main,.feature-side-card,.list-card,.side-panel,.question-card,.cta-panel { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); box-shadow:var(--shadow-sm); }
    .feature-main { overflow:hidden; }
    .visual-cover {
      min-height:305px; position:relative; display:flex; align-items:flex-end; padding:25px;
      background:
        linear-gradient(135deg,rgba(47,111,237,.14),rgba(255,255,255,.3)),
        repeating-linear-gradient(135deg,transparent 0 24px,rgba(47,111,237,.06) 25px 26px),
        #dcecff;
    }
    .visual-cover::before { position:absolute; top:34px; right:42px; width:130px; height:130px; content:""; border:1px solid rgba(47,111,237,.26); border-radius:50%; }
    .visual-cover::after { position:absolute; top:97px; right:18px; width:180px; height:1px; content:""; background:rgba(47,111,237,.2); transform:rotate(-35deg); }
    .cover-note { position:relative; z-index:1; padding:15px 18px; max-width:300px; background:rgba(255,255,255,.92); border-left:3px solid var(--primary); border-radius:10px; box-shadow:var(--shadow-sm); }
    .cover-note strong { display:block; color:var(--ink); font-size:1.1rem; }
    .cover-note span { color:var(--muted); font-size:.84rem; }
    .feature-copy { padding:27px 29px 30px; }
    .feature-copy h2 { margin:15px 0 12px; font-size:1.75rem; }
    .feature-copy p { margin-bottom:21px; color:var(--muted); }
    .feature-side { display:grid; gap:24px; }
    .feature-side-card { padding:25px; }
    .side-number { color:var(--primary); font-size:2.4rem; font-weight:850; line-height:1; }
    .feature-side-card h3 { margin:18px 0 8px; font-size:1.2rem; }
    .feature-side-card p { margin:0 0 17px; color:var(--muted); font-size:.92rem; }

    .content-section { padding:0 0 96px; }
    .content-layout { display:grid; grid-template-columns:minmax(0,2fr) minmax(260px,1fr); gap:38px; align-items:start; }
    .list-stack { display:grid; gap:18px; }
    .list-card { display:grid; grid-template-columns:180px minmax(0,1fr); gap:23px; padding:16px; overflow:hidden; }
    .list-visual {
      min-height:145px; position:relative; overflow:hidden; display:flex; align-items:flex-end; padding:13px;
      background:linear-gradient(145deg,#e8f2ff,#d8e8f2); border-radius:13px;
    }
    .list-visual::before { width:100px; height:100px; position:absolute; top:-28px; right:-16px; content:""; border:12px solid rgba(47,111,237,.12); border-radius:50%; }
    .list-visual span { position:relative; z-index:1; padding:4px 8px; color:var(--primary-dark); background:rgba(255,255,255,.8); border-radius:7px; font-size:.72rem; font-weight:800; }
    .list-copy { padding:5px 7px 5px 0; }
    .list-meta { display:flex; align-items:center; flex-wrap:wrap; gap:9px; color:var(--muted); font-size:.78rem; }
    .list-copy h3 { margin:12px 0 7px; font-size:1.23rem; }
    .list-copy p { margin:0 0 12px; color:var(--muted); font-size:.91rem; line-height:1.7; }
    .recommend { padding:23px 25px; background:var(--primary-soft); border:1px solid #d3e2ff; border-radius:17px; }
    .recommend h3 { margin:10px 0 7px; font-size:1.25rem; }
    .recommend p { margin:0 0 12px; color:var(--body-text); font-size:.92rem; }
    .side-panel { position:sticky; top:105px; padding:24px; }
    .side-panel + .side-panel { margin-top:18px; }
    .side-panel h2 { margin:0 0 17px; font-size:1.28rem; }
    .side-nav { display:grid; gap:4px; margin-bottom:4px; }
    .side-nav a { display:flex; justify-content:space-between; padding:10px 12px; color:var(--body-text); border-radius:9px; font-size:.92rem; font-weight:700; }
    .side-nav a:hover,.side-nav a.current { color:var(--primary-dark); background:var(--primary-soft); }
    .side-nav a span { color:var(--muted); }
    .keyword-cloud { display:flex; flex-wrap:wrap; gap:8px; }
    .keyword-cloud a { padding:6px 9px; color:var(--body-text); background:var(--background); border:1px solid var(--border); border-radius:8px; font-size:.8rem; }
    .keyword-cloud a:hover { color:var(--primary-dark); border-color:#aac5f8; background:var(--primary-soft); }

    .questions { padding:88px 0; background:var(--surface); }
    .questions-grid { display:grid; grid-template-columns:.82fr 1.5fr; gap:60px; align-items:start; }
    .question-lead p { color:var(--muted); }
    .accordion { display:grid; gap:12px; }
    .accordion-item { overflow:hidden; background:#fff; border:1px solid var(--border)!important; border-radius:14px!important; box-shadow:var(--shadow-sm); }
    .accordion-button { padding:19px 22px; color:var(--ink); background:#fff!important; font-weight:750; box-shadow:none!important; }
    .accordion-button:not(.collapsed) { color:var(--primary-dark); }
    .accordion-button::after { background-size:15px; }
    .accordion-body { padding:0 22px 20px; color:var(--muted); font-size:.94rem; }

    .cta-section { padding:82px 0; background:var(--background-blue); }
    .cta-panel { display:flex; justify-content:space-between; align-items:center; gap:30px; padding:36px 40px; }
    .cta-panel h2 { margin:0 0 10px; font-size:2rem; }
    .cta-panel p { max-width:650px; margin:0; color:var(--muted); }
    .cta-actions { display:flex; flex-wrap:wrap; gap:11px; flex:0 0 auto; }
    .privacy-note { margin-top:23px; color:var(--muted); font-size:.82rem; }
    .site-footer { padding:70px 0 26px; background:#edf3f8; border-top:1px solid var(--border); }
    .footer-brand { font-size:1.05rem; }
    .footer-intro { max-width:610px; margin:19px 0 0; color:var(--muted); font-size:.92rem; }
    .footer-title { margin:0 0 16px; color:var(--ink); font-size:.95rem; font-weight:800; }
    .footer-links { display:grid; gap:8px; }
    .footer-links a { color:var(--body-text); font-size:.9rem; }
    .footer-links a:hover { color:var(--primary-dark); transform:translateX(3px); }
    .footer-bottom { display:flex; justify-content:space-between; gap:20px; margin-top:48px; padding-top:22px; color:var(--muted); border-top:1px solid var(--border); font-size:.78rem; }
    .footer-bottom-links { display:flex; flex-wrap:wrap; gap:17px; }
    .footer-bottom-links a { color:var(--muted); }
    .footer-bottom-links a:hover { color:var(--primary-dark); }
    :focus-visible { outline:3px solid rgba(47,111,237,.42); outline-offset:3px; }

    @media (max-width: 991.98px) {
      :root { --section-space:70px; }
      .site-container { width:min(100% - 36px,760px); }
      .navbar-collapse { padding:14px 0 7px; }
      .navbar-nav { align-items:stretch; gap:3px; }
      .nav-link { min-height:44px; }
      .nav-cta { display:inline-flex; align-items:center; justify-content:center; margin:9px 0 0; }
      .mega-panel { position:static; width:100%; margin-top:7px; box-shadow:none; }
      .more-menu:hover .mega-panel { display:none; }
      .more-menu:focus-within .mega-panel,.more-menu .mega-panel.show { display:block; }
      .feature-grid,.content-layout,.questions-grid { grid-template-columns:1fr; }
      .feature-side { grid-template-columns:1fr 1fr; }
      .side-panel { position:static; }
      .questions-grid { gap:30px; }
    }
    @media (max-width: 767.98px) {
      body { font-size:16px; padding-bottom:25px; }
      .site-container { width:calc(100% - 36px); }
      .page-head { padding:45px 0 40px; }
      .feature-area { padding:53px 0 62px; }
      .feature-side { grid-template-columns:1fr; }
      .list-card { grid-template-columns:125px minmax(0,1fr); gap:15px; }
      .list-visual { min-height:145px; }
      .content-section { padding-bottom:65px; }
      .questions { padding:62px 0; }
      .cta-section { padding:55px 0; }
      .cta-panel { display:block; padding:28px 24px; }
      .cta-actions { margin-top:23px; }
      .footer-bottom { display:block; }
      .footer-bottom-links { margin-top:13px; }
    }
    @media (max-width: 520px) {
      h1 { font-size:2.25rem; }
      .navbar-brand { max-width:245px; font-size:.9rem; }
      .list-card { display:block; padding:14px; }
      .list-visual { min-height:150px; margin-bottom:15px; }
      .list-copy { padding:0 5px 5px; }
      .feature-copy { padding:23px 21px 25px; }
      .cta-actions .btn { width:100%; }
      .footer-bottom-links { display:grid; gap:7px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *,*::before,*::after { scroll-behavior:auto!important; transition-duration:.01ms!important; animation-duration:.01ms!important; }
    }