/* roulang page: index */
:root {
            --blue-900: #102c4c;
            --blue-800: #164b78;
            --blue-700: #1769a8;
            --blue-600: #2086c7;
            --blue-100: #e7f4fb;
            --blue-50: #f4faff;
            --teal: #3d9e96;
            --orange: #ee9b4b;
            --ink: #17324b;
            --muted: #6b7d8d;
            --line: #dce8ef;
            --paper: #ffffff;
            --mist: #f4f7f9;
            --deep: #102b43;
            --radius: 8px;
            --shadow: 0 12px 30px rgba(25, 72, 104, .09);
            --shadow-hover: 0 18px 34px rgba(25, 72, 104, .15);
            --container: 1240px;
            --ease: 220ms ease;
        }

        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            color: var(--ink);
            background: var(--paper);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            overflow-x: hidden;
        }
        body.menu-open { overflow: hidden; }
        img { display: block; max-width: 100%; height: auto; }
        a { color: inherit; text-decoration: none; }
        button, input, select, textarea { font: inherit; }
        button { cursor: pointer; }
        :focus-visible { outline: 3px solid rgba(32, 134, 199, .35); outline-offset: 3px; }
        .container { width: min(var(--container), calc(100% - 64px)); margin-inline: auto; }
        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--blue-700);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .eyebrow::before {
            content: "";
            width: 24px;
            height: 2px;
            background: var(--orange);
        }
        h1, h2, h3, p { margin-top: 0; }
        h1, h2, h3 { color: var(--blue-900); line-height: 1.3; }
        h1 { margin-bottom: 22px; font-size: clamp(38px, 5vw, 68px); font-weight: 700; }
        h2 { margin-bottom: 16px; font-size: clamp(30px, 3.2vw, 46px); font-weight: 700; }
        h3 { margin-bottom: 10px; font-size: 21px; }
        .section { padding: 112px 0; position: relative; }
        .section-head { max-width: 720px; margin-bottom: 54px; }
        .section-head p { margin-bottom: 0; color: var(--muted); font-size: 17px; }
        .section-head.center { margin-inline: auto; text-align: center; }
        .section-head.center .eyebrow { justify-content: center; }
        .section-head.center .eyebrow::before { display: none; }
        .soft-section { background: var(--mist); }
        .blue-section { background: var(--blue-50); }
        .btn {
            min-height: 48px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            padding: 11px 21px;
            border: 1px solid transparent;
            border-radius: 6px;
            font-weight: 700;
            transition: transform var(--ease), background var(--ease), border-color var(--ease), box-shadow var(--ease);
        }
        .btn:hover { transform: translateY(-2px); }
        .btn-primary { color: #fff; background: var(--blue-700); box-shadow: 0 8px 18px rgba(23, 105, 168, .2); }
        .btn-primary:hover { background: var(--blue-800); box-shadow: 0 12px 24px rgba(23, 105, 168, .27); }
        .btn-light { color: var(--blue-800); background: #fff; border-color: rgba(255,255,255,.7); }
        .btn-light:hover { background: var(--blue-50); }
        .btn-outline { color: var(--blue-700); background: transparent; border-color: var(--blue-700); }
        .btn-outline:hover { color: #fff; background: var(--blue-700); }
        .btn-small { min-height: 40px; padding: 7px 14px; font-size: 14px; }
        .tag {
            display: inline-flex;
            align-items: center;
            min-height: 28px;
            padding: 3px 10px;
            border: 1px solid var(--line);
            border-radius: 4px;
            color: var(--blue-700);
            background: #fff;
            font-size: 13px;
            line-height: 1.3;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255,255,255,.98);
            border-bottom: 1px solid var(--line);
            transition: box-shadow var(--ease);
        }
        .site-header.scrolled { box-shadow: 0 6px 20px rgba(18, 55, 81, .08); }
        .nav-main { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            color: var(--blue-900);
            font-weight: 700;
            font-size: 20px;
            white-space: nowrap;
        }
        .brand-mark {
            width: 34px;
            height: 34px;
            display: grid;
            place-items: center;
            color: #fff;
            background: var(--blue-700);
            border-radius: 7px;
            font-size: 15px;
            font-weight: 800;
        }
        .primary-nav { display: flex; align-items: center; gap: 5px; }
        .primary-nav a {
            position: relative;
            padding: 24px 13px 22px;
            color: #4c6475;
            font-size: 14px;
            transition: color var(--ease);
        }
        .primary-nav a::after {
            content: "";
            position: absolute;
            right: 13px;
            bottom: 14px;
            left: 13px;
            height: 2px;
            background: var(--blue-700);
            transform: scaleX(0);
            transition: transform var(--ease);
        }
        .primary-nav a:hover, .primary-nav a.active { color: var(--blue-700); }
        .primary-nav a:hover::after, .primary-nav a.active::after { transform: scaleX(1); }
        .nav-actions { display: flex; align-items: center; gap: 12px; }
        .menu-toggle {
            display: none;
            width: 46px;
            height: 46px;
            border: 1px solid var(--line);
            border-radius: 6px;
            color: var(--blue-800);
            background: #fff;
            font-size: 21px;
        }
        .subnav { border-top: 1px solid #edf2f5; background: #fbfdfe; }
        .subnav-inner { min-height: 38px; display: flex; align-items: center; justify-content: space-between; gap: 20px; color: var(--muted); font-size: 13px; }
        .subnav-list { display: flex; gap: 25px; flex-wrap: wrap; }
        .subnav-list a:hover { color: var(--blue-700); }
        .subnav-note { color: var(--teal); }

        .hero {
            min-height: 680px;
            position: relative;
            display: flex;
            align-items: center;
            color: #fff;
            background-color: #173b59;
            background-image: url('/assets/images/09f5d4744800f53a.webp');
            background-position: center;
            background-size: cover;
            transition: background-image 450ms ease;
        }
        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(10, 38, 62, .64);
        }
        .hero-content { position: relative; z-index: 1; max-width: 790px; padding: 110px 0 116px; }
        .hero .eyebrow { color: #c4edf2; }
        .hero .eyebrow::before { background: var(--orange); }
        .hero h1 { max-width: 790px; color: #fff; }
        .hero h1 span { color: #a9dfdd; }
        .hero-copy { max-width: 680px; margin-bottom: 30px; color: #e9f3f8; font-size: 18px; }
        .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
        .hero-meta { display: flex; align-items: center; gap: 28px; margin-top: 42px; color: #d7e9f1; font-size: 14px; }
        .hero-meta strong { display: block; color: #fff; font-size: 21px; }
        .hero-controls { position: absolute; right: max(32px, calc((100vw - var(--container)) / 2)); bottom: 42px; z-index: 2; display: flex; align-items: center; gap: 8px; }
        .hero-dot { width: 32px; height: 4px; padding: 0; border: 0; background: rgba(255,255,255,.4); transition: background var(--ease), width var(--ease); }
        .hero-dot.active { width: 56px; background: #fff; }
        .hero-counter { margin-left: 10px; color: #e5f3f7; font-size: 13px; }

        .intro-grid { display: grid; grid-template-columns: .88fr 1.12fr; gap: 82px; align-items: center; }
        .intro-copy p { color: var(--muted); }
        .intro-copy .tags { display: flex; gap: 8px; flex-wrap: wrap; margin: 26px 0; }
        .proof-line { display: flex; gap: 12px; padding-top: 21px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
        .proof-line strong { color: var(--blue-800); }
        .visual-frame { position: relative; overflow: hidden; border-radius: 8px; background: #dcebf2; box-shadow: var(--shadow); }
        .visual-frame img { width: 100%; aspect-ratio: 1.25 / 1; object-fit: cover; }
        .visual-caption { position: absolute; right: 18px; bottom: 18px; left: 18px; padding: 13px 16px; color: #fff; background: rgba(16, 43, 67, .86); border-left: 3px solid var(--orange); font-size: 14px; }

        .pain-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
        .pain-item { display: grid; grid-template-columns: 84px 1fr 1.4fr; gap: 22px; align-items: center; padding: 25px 0; border-bottom: 1px solid var(--line); }
        .pain-number { color: var(--blue-600); font-size: 28px; font-weight: 700; }
        .pain-item h3 { margin: 0; font-size: 19px; }
        .pain-item p { margin: 0; color: var(--muted); font-size: 15px; }

        .solution-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
        .flow { position: relative; display: grid; gap: 17px; }
        .flow::before { content: ""; position: absolute; top: 24px; bottom: 24px; left: 17px; width: 1px; background: #b9d9e5; }
        .flow-step { position: relative; display: grid; grid-template-columns: 35px 1fr; gap: 17px; }
        .flow-num { position: relative; z-index: 1; width: 35px; height: 35px; display: grid; place-items: center; border: 1px solid #9bcddd; border-radius: 50%; color: var(--blue-700); background: var(--blue-50); font-size: 13px; font-weight: 700; }
        .flow-step h3 { margin: 3px 0 3px; font-size: 17px; }
        .flow-step p { margin: 0; color: var(--muted); font-size: 14px; }
        .solution-visual { padding: 25px; border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow); }
        .task-window { overflow: hidden; border: 1px solid #cbdde6; border-radius: 6px; }
        .task-top { display: flex; align-items: center; justify-content: space-between; padding: 13px 15px; color: #fff; background: var(--blue-900); font-size: 13px; }
        .task-body { display: grid; gap: 13px; padding: 20px; background: #f8fbfc; }
        .task-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px; border: 1px solid #dce9ee; background: #fff; font-size: 14px; }
        .status { color: #2a8579; font-size: 12px; }
        .status::before { content: "●"; margin-right: 5px; font-size: 9px; }

        .timeline { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; }
        .time-step { position: relative; padding: 0 20px 0 0; }
        .time-step:not(:last-child)::after { content: ""; position: absolute; top: 18px; right: 15px; left: 55px; height: 1px; background: #bdd9e3; }
        .time-marker { position: relative; z-index: 1; width: 36px; height: 36px; display: grid; place-items: center; margin-bottom: 22px; border: 1px solid #91c8d5; border-radius: 50%; color: var(--blue-700); background: #fff; font-weight: 700; }
        .time-step h3 { font-size: 17px; }
        .time-step p { margin: 0; color: var(--muted); font-size: 14px; }

        .adv-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
        .adv-card { min-height: 220px; grid-column: span 2; padding: 25px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 5px 16px rgba(25,72,104,.045); transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease); }
        .adv-card:nth-child(4), .adv-card:nth-child(5), .adv-card:nth-child(6) { grid-column: span 2; }
        .adv-card:hover { transform: translateY(-4px); border-color: #8bc9db; box-shadow: var(--shadow-hover); }
        .adv-icon { width: 42px; height: 42px; display: grid; place-items: center; margin-bottom: 22px; color: var(--blue-700); background: var(--blue-100); border-radius: 6px; font-size: 19px; font-weight: 700; }
        .adv-card p { margin: 0; color: var(--muted); font-size: 14px; }

        .product-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 18px; }
        .product-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
        .product-card.featured { grid-row: span 2; }
        .product-img { overflow: hidden; background: #dcecf2; }
        .product-img img { width: 100%; aspect-ratio: 2 / 1.15; object-fit: cover; transition: transform 400ms ease; }
        .product-card:hover .product-img img { transform: scale(1.025); }
        .product-content { padding: 24px; }
        .product-content h3 { font-size: 22px; }
        .product-content p { min-height: 52px; color: var(--muted); font-size: 14px; }
        .product-tags { display: flex; gap: 7px; flex-wrap: wrap; margin-bottom: 20px; }

        .dark-section { color: #d9e9f0; background: var(--deep); }
        .dark-section h2, .dark-section h3 { color: #fff; }
        .dark-section .eyebrow { color: #a9dfdd; }
        .case-grid { display: grid; grid-template-columns: 1.18fr .82fr; gap: 52px; align-items: center; }
        .case-image { overflow: hidden; border: 1px solid rgba(193,224,236,.25); }
        .case-image img { width: 100%; aspect-ratio: 1.3 / 1; object-fit: cover; }
        .case-copy p { color: #b6cbd5; }
        .case-flow { display: flex; flex-wrap: wrap; gap: 8px; margin: 25px 0; }
        .case-flow span { padding: 7px 10px; border: 1px solid rgba(178,220,232,.28); color: #d5edf0; background: rgba(255,255,255,.05); font-size: 13px; }
        .case-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; margin-top: 28px; }
        .case-metric { padding-top: 17px; border-top: 1px solid rgba(197,224,235,.25); }
        .case-metric strong { display: block; color: #fff; font-size: 25px; }
        .case-metric span { color: #a9c3ce; font-size: 13px; }

        .story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
        .story-card { display: grid; grid-template-columns: 150px 1fr; gap: 24px; align-items: center; padding: 24px; border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow); }
        .story-card img { width: 150px; height: 150px; object-fit: cover; }
        .story-card blockquote { margin: 0 0 14px; color: var(--blue-900); font-size: 18px; line-height: 1.55; }
        .story-card cite { color: var(--muted); font-size: 13px; font-style: normal; }

        .stats-band { padding: 60px 0; background: var(--blue-700); }
        .stats-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
        .stat { padding-right: 20px; border-right: 1px solid rgba(255,255,255,.28); color: #d7edf6; }
        .stat:last-child { border-right: 0; }
        .stat strong { display: block; color: #fff; font-size: 34px; line-height: 1.25; }
        .stat span { display: block; margin-top: 6px; font-size: 13px; }

        .review-layout { display: grid; grid-template-columns: .95fr 1.05fr; gap: 70px; align-items: center; }
        .review-main { padding: 32px; border-left: 4px solid var(--orange); background: var(--blue-50); }
        .review-main blockquote { margin: 0 0 20px; color: var(--blue-900); font-size: 25px; line-height: 1.55; }
        .review-main cite { color: var(--muted); font-size: 14px; font-style: normal; }
        .review-list { display: grid; gap: 15px; }
        .review-item { padding: 20px; border-bottom: 1px solid var(--line); }
        .review-item p { margin-bottom: 7px; color: var(--ink); }
        .review-item span { color: var(--muted); font-size: 13px; }

        .audience-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
        .audience-card { padding: 24px; border-top: 3px solid var(--blue-600); background: #fff; box-shadow: var(--shadow); }
        .audience-card:nth-child(2) { border-top-color: var(--teal); }
        .audience-card:nth-child(3) { border-top-color: var(--orange); }
        .audience-card:nth-child(4) { border-top-color: #7c9dc0; }
        .audience-card p { margin: 0; color: var(--muted); font-size: 14px; }
        .audience-card strong { display: block; margin-bottom: 10px; color: var(--blue-800); }

        .news-layout { display: grid; grid-template-columns: 1.2fr .8fr; gap: 18px; }
        .news-lead { overflow: hidden; display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow); }
        .news-lead img { width: 100%; height: 100%; min-height: 270px; object-fit: cover; }
        .news-copy { padding: 28px; }
        .news-copy time, .news-item time { color: var(--blue-600); font-size: 13px; }
        .news-copy p { color: var(--muted); font-size: 14px; }
        .news-list { border-top: 1px solid var(--line); }
        .news-item { display: block; padding: 17px 0; border-bottom: 1px solid var(--line); transition: color var(--ease); }
        .news-item:hover h3 { color: var(--blue-700); }
        .news-item h3 { margin: 4px 0 4px; font-size: 17px; }
        .news-item p { margin: 0; color: var(--muted); font-size: 13px; }

        .metric-table { overflow: hidden; border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow); }
        .metric-row { display: grid; grid-template-columns: 1.1fr 1fr 1.5fr; gap: 20px; padding: 17px 22px; border-bottom: 1px solid var(--line); }
        .metric-row:last-child { border-bottom: 0; }
        .metric-row.header { color: var(--blue-800); background: var(--blue-100); font-weight: 700; }
        .metric-row span { color: var(--muted); font-size: 14px; }
        .metric-row span:first-child { color: var(--ink); font-weight: 600; }

        .faq-list { max-width: 900px; margin: 0 auto; border-top: 1px solid var(--line); }
        .faq-item { border-bottom: 1px solid var(--line); }
        .faq-question { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 22px 0; border: 0; color: var(--blue-900); background: transparent; text-align: left; font-weight: 700; }
        .faq-question::after { content: "+"; color: var(--blue-700); font-size: 25px; font-weight: 400; }
        .faq-question[aria-expanded="true"]::after { content: "−"; }
        .faq-answer { display: none; padding: 0 45px 22px 0; color: var(--muted); font-size: 15px; }
        .faq-question[aria-expanded="true"] + .faq-answer { display: block; }

        .cta-section { background: var(--blue-100); }
        .cta-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 70px; align-items: start; }
        .cta-copy p { color: var(--muted); }
        .contact-points { display: grid; gap: 12px; margin-top: 30px; }
        .contact-point { display: flex; gap: 12px; align-items: center; color: var(--blue-800); font-size: 14px; }
        .contact-point b { width: 26px; height: 26px; display: grid; place-items: center; color: #fff; background: var(--teal); border-radius: 50%; font-size: 12px; }
        .lead-form { padding: 30px; border: 1px solid #c9e0ea; background: #fff; box-shadow: var(--shadow); }
        .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
        .field { display: grid; gap: 7px; }
        .field.full { grid-column: 1 / -1; }
        .field label { color: var(--blue-900); font-size: 14px; font-weight: 600; }
        .required { color: #c76f37; }
        .field input, .field select, .field textarea { width: 100%; min-height: 46px; padding: 10px 12px; border: 1px solid #cbdce4; border-radius: 5px; color: var(--ink); background: #fff; transition: border-color var(--ease), box-shadow var(--ease); }
        .field textarea { min-height: 108px; resize: vertical; }
        .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--blue-600); box-shadow: 0 0 0 3px rgba(32,134,199,.12); outline: 0; }
        .field.invalid input, .field.invalid select, .field.invalid textarea { border-color: #c76f37; }
        .field-error { display: none; color: #b75f31; font-size: 12px; }
        .field.invalid .field-error { display: block; }
        .form-bottom { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-top: 20px; }
        .privacy-note { margin: 0; color: var(--muted); font-size: 12px; }
        .form-message { display: none; margin-top: 14px; padding: 11px 13px; color: #26796f; background: #e7f6f1; font-size: 13px; }
        .form-message.show { display: block; }

        .site-footer { padding: 62px 0 24px; color: #b7cad5; background: var(--deep); }
        .footer-grid { display: grid; grid-template-columns: 1.35fr .75fr .9fr 1fr; gap: 45px; padding-bottom: 45px; }
        .site-footer .brand { color: #fff; }
        .footer-intro { margin: 18px 0 0; max-width: 300px; color: #9fb8c5; font-size: 14px; }
        .footer-title { margin-bottom: 16px; color: #fff; font-size: 15px; font-weight: 700; }
        .footer-links { display: grid; gap: 9px; font-size: 14px; }
        .footer-links a:hover { color: #fff; }
        .footer-contact { display: grid; gap: 9px; color: #b7cad5; font-size: 14px; }
        .footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 20px; border-top: 1px solid rgba(201,225,234,.18); color: #8fa9b7; font-size: 12px; }
        .footer-bottom a:hover { color: #fff; }

        @media (max-width: 1024px) {
            .container { width: min(var(--container), calc(100% - 44px)); }
            .primary-nav { gap: 0; }
            .primary-nav a { padding-inline: 8px; }
            .intro-grid, .solution-layout, .case-grid, .review-layout, .cta-layout { gap: 42px; }
            .adv-grid { grid-template-columns: repeat(2, 1fr); }
            .adv-card, .adv-card:nth-child(4), .adv-card:nth-child(5), .adv-card:nth-child(6) { grid-column: span 1; }
            .audience-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .container { width: min(var(--container), calc(100% - 32px)); }
            .section { padding: 78px 0; }
            .subnav { display: none; }
            .nav-main { min-height: 68px; }
            .nav-actions .btn { display: none; }
            .menu-toggle { display: grid; place-items: center; }
            .primary-nav {
                position: absolute;
                top: 68px;
                right: 16px;
                left: 16px;
                display: none;
                padding: 9px;
                border: 1px solid var(--line);
                background: #fff;
                box-shadow: var(--shadow-hover);
            }
            .primary-nav.open { display: grid; }
            .primary-nav a { padding: 13px 14px; border-bottom: 1px solid #edf2f5; }
            .primary-nav a:last-child { border-bottom: 0; }
            .primary-nav a::after { display: none; }
            .hero { min-height: 620px; }
            .hero-content { padding: 78px 0 100px; }
            .hero-copy { font-size: 16px; }
            .hero-meta { gap: 17px; margin-top: 30px; }
            .hero-controls { right: 16px; bottom: 28px; }
            .intro-grid, .solution-layout, .case-grid, .review-layout, .cta-layout, .news-layout { grid-template-columns: 1fr; }
            .intro-grid { gap: 35px; }
            .pain-item { grid-template-columns: 52px 1fr; gap: 12px; }
            .pain-item p { grid-column: 2; }
            .timeline { grid-template-columns: 1fr; gap: 23px; }
            .time-step { display: grid; grid-template-columns: 46px 1fr; gap: 15px; padding: 0; }
            .time-step:not(:last-child)::after { top: 36px; right: auto; bottom: -23px; left: 17px; width: 1px; height: auto; }
            .time-marker { margin: 0; }
            .time-step h3 { margin: 2px 0 5px; }
            .product-layout { grid-template-columns: 1fr; }
            .product-card.featured { grid-row: auto; }
            .story-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px 15px; }
            .stat { border-right: 0; }
            .news-lead { grid-template-columns: 1fr; }
            .news-lead img { min-height: 220px; }
            .metric-row { grid-template-columns: 1fr; gap: 4px; padding: 15px 17px; }
            .metric-row.header { display: none; }
            .metric-row span::before { content: ""; }
            .form-grid { grid-template-columns: 1fr; }
            .field.full { grid-column: auto; }
            .form-bottom { align-items: flex-start; flex-direction: column; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 35px 22px; }
            .footer-bottom { flex-direction: column; gap: 8px; }
        }
        @media (max-width: 520px) {
            h1 { font-size: 38px; }
            h2 { font-size: 30px; }
            .brand { font-size: 17px; }
            .brand-mark { width: 31px; height: 31px; }
            .hero { min-height: 600px; }
            .hero h1 { margin-bottom: 17px; }
            .hero-meta { align-items: flex-start; flex-direction: column; gap: 8px; }
            .hero-actions .btn { width: 100%; }
            .adv-grid, .audience-grid { grid-template-columns: 1fr; }
            .story-card { grid-template-columns: 1fr; }
            .story-card img { width: 100%; height: 190px; }
            .case-metrics { grid-template-columns: 1fr; }
            .review-main { padding: 22px; }
            .review-main blockquote { font-size: 20px; }
            .footer-grid { grid-template-columns: 1fr; }
        }
        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
        }