/* roulang page: index */
:root {
            --bg: #080b14;
            --bg-soft: #0d1220;
            --panel: #11182a;
            --panel-light: #151f35;
            --primary: #5b67f1;
            --primary-light: #818cf8;
            --cyan: #35d4f4;
            --text: #f7f8ff;
            --muted: #98a4bd;
            --muted-2: #6f7b96;
            --border: rgba(151, 163, 194, .16);
            --border-strong: rgba(129, 140, 248, .38);
            --radius-lg: 28px;
            --radius-md: 18px;
            --shadow: 0 24px 70px rgba(0,0,0,.28);
            --container: 1180px;
        }

        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            background:
                radial-gradient(circle at 75% 7%, rgba(91,103,241,.16), transparent 27rem),
                radial-gradient(circle at 8% 28%, rgba(53,212,244,.07), transparent 24rem),
                var(--bg);
            color: var(--text);
            font-family: "Noto Sans SC", "Inter", sans-serif;
            line-height: 1.75;
            overflow-x: hidden;
        }
        body, button, input, textarea { font-family: inherit; }
        a { color: inherit; text-decoration: none; }
        img { max-width: 100%; display: block; }
        button, input, textarea { outline: none; }
        button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible {
            outline: 3px solid rgba(53,212,244,.55);
            outline-offset: 3px;
        }
        .container {
            width: min(var(--container), calc(100% - 48px));
            margin: 0 auto;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 30;
            background: rgba(8,11,20,.8);
            backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255,255,255,.07);
        }
        .nav-shell {
            min-height: 78px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            font-weight: 800;
            letter-spacing: -.04em;
            white-space: nowrap;
        }
        .brand-mark {
            width: 38px;
            height: 38px;
            border-radius: 13px;
            display: grid;
            place-items: center;
            color: #fff;
            background: linear-gradient(145deg, var(--primary-light), var(--primary));
            box-shadow: 0 8px 24px rgba(91,103,241,.35);
            font-size: 18px;
        }
        .brand-name { font-size: 17px; }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 7px;
        }
        .main-nav a {
            color: var(--muted);
            padding: 9px 14px;
            border-radius: 10px;
            font-size: 14px;
            transition: .25s ease;
        }
        .main-nav a:hover, .main-nav a.active {
            color: var(--text);
            background: rgba(129,140,248,.12);
        }
        .nav-action, .button-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            min-height: 46px;
            padding: 0 19px;
            border-radius: 12px;
            border: 1px solid transparent;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            box-shadow: 0 12px 28px rgba(91,103,241,.25);
            transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
        }
        .nav-action:hover, .button-primary:hover {
            color: #fff;
            transform: translateY(-2px);
            background: #6974ff;
            box-shadow: 0 16px 35px rgba(91,103,241,.38);
        }
        .button-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            min-height: 46px;
            padding: 0 19px;
            border-radius: 12px;
            border: 1px solid var(--border-strong);
            color: var(--text);
            background: rgba(255,255,255,.035);
            font-weight: 700;
            font-size: 14px;
            transition: .25s ease;
        }
        .button-secondary:hover {
            color: var(--text);
            background: rgba(129,140,248,.13);
            transform: translateY(-2px);
        }
        .nav-toggle { display: none; color: var(--text); background: none; border: 0; font-size: 22px; }

        .hero {
            position: relative;
            padding: 90px 0 74px;
            overflow: hidden;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.04fr .96fr;
            align-items: center;
            gap: 70px;
        }
        .eyebrow, .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: #aeb8ff;
            font-size: 12px;
            letter-spacing: .13em;
            text-transform: uppercase;
            font-weight: 800;
        }
        .eyebrow::before, .section-kicker::before {
            content: "";
            width: 25px;
            height: 2px;
            background: var(--cyan);
            box-shadow: 0 0 14px var(--cyan);
        }
        h1, h2, h3, p { margin-top: 0; }
        h1 {
            margin: 20px 0 21px;
            max-width: 680px;
            font-size: clamp(42px, 6vw, 76px);
            line-height: 1.12;
            letter-spacing: -.065em;
            font-weight: 800;
        }
        .hero-copy {
            max-width: 640px;
            color: var(--muted);
            font-size: 17px;
            line-height: 1.9;
            margin-bottom: 31px;
        }
        .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
        .hero-note {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--muted-2);
            font-size: 13px;
            margin-top: 23px;
        }
        .hero-note i { color: #67e8f9; }
        .hero-stage {
            min-height: 445px;
            position: relative;
            border: 1px solid var(--border);
            border-radius: 34px;
            overflow: hidden;
            background: #121a2b;
            box-shadow: var(--shadow);
        }
        .hero-stage img {
            width: 100%;
            height: 100%;
            min-height: 445px;
            object-fit: cover;
            opacity: .48;
        }
        .hero-stage::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(130deg, rgba(13,18,32,.92), rgba(13,18,32,.3), rgba(91,103,241,.2));
        }
        .signal-card {
            position: absolute;
            z-index: 2;
            left: 28px;
            right: 28px;
            bottom: 27px;
            padding: 22px;
            border: 1px solid rgba(255,255,255,.15);
            border-radius: 21px;
            background: rgba(10,15,27,.8);
            backdrop-filter: blur(18px);
        }
        .signal-top, .signal-row { display: flex; justify-content: space-between; align-items: center; gap: 14px; }
        .signal-title { font-weight: 700; font-size: 15px; }
        .signal-status { color: #73f3c2; font-size: 12px; }
        .signal-value { font-size: 39px; font-weight: 800; letter-spacing: -.06em; }
        .signal-value small { font-size: 14px; color: var(--muted); font-weight: 500; letter-spacing: 0; }
        .signal-bars { display: flex; align-items: end; gap: 5px; height: 55px; }
        .signal-bars span { width: 7px; border-radius: 8px; background: linear-gradient(#6c78ff, #36d4f4); animation: pulse 1.8s infinite ease-in-out; }
        .signal-bars span:nth-child(1) { height: 27%; animation-delay: .1s; }
        .signal-bars span:nth-child(2) { height: 54%; animation-delay: .2s; }
        .signal-bars span:nth-child(3) { height: 39%; animation-delay: .3s; }
        .signal-bars span:nth-child(4) { height: 76%; animation-delay: .4s; }
        .signal-bars span:nth-child(5) { height: 64%; animation-delay: .5s; }
        .signal-bars span:nth-child(6) { height: 92%; animation-delay: .6s; }
        @keyframes pulse { 50% { opacity: .45; transform: scaleY(.7); } }

        .ticker {
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            background: rgba(255,255,255,.025);
            overflow: hidden;
        }
        .ticker-track {
            min-height: 59px;
            display: flex;
            align-items: center;
            gap: 38px;
            white-space: nowrap;
            color: var(--muted);
            font-size: 13px;
        }
        .ticker-item { display: inline-flex; align-items: center; gap: 10px; }
        .ticker-item i { color: var(--cyan); }

        .section { padding: 102px 0; }
        .section-alt {
            background: linear-gradient(180deg, rgba(255,255,255,.018), rgba(255,255,255,.008));
            border-top: 1px solid rgba(255,255,255,.04);
            border-bottom: 1px solid rgba(255,255,255,.04);
        }
        .section-heading { max-width: 720px; margin-bottom: 40px; }
        .section-heading h2 {
            margin: 16px 0 13px;
            font-size: clamp(29px, 4vw, 47px);
            line-height: 1.2;
            letter-spacing: -.055em;
        }
        .section-heading p { color: var(--muted); max-width: 680px; margin-bottom: 0; }
        .section-heading.center { margin-left: auto; margin-right: auto; text-align: center; }
        .section-heading.center .section-kicker { justify-content: center; }

        .metric-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
        }
        .metric {
            padding: 25px;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            background: rgba(17,24,42,.72);
        }
        .metric strong { display: block; font-size: 34px; line-height: 1.2; letter-spacing: -.06em; }
        .metric span { color: var(--muted); font-size: 13px; }

        .pain-layout, .solution-layout {
            display: grid;
            grid-template-columns: .8fr 1.2fr;
            gap: 70px;
            align-items: start;
        }
        .pain-list { display: grid; gap: 12px; }
        .pain-item {
            display: grid;
            grid-template-columns: 48px 1fr;
            gap: 15px;
            align-items: start;
            padding: 20px;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            background: rgba(255,255,255,.025);
            transition: .25s ease;
        }
        .pain-item:hover { border-color: var(--border-strong); transform: translateX(4px); }
        .pain-num {
            width: 40px; height: 40px; border-radius: 12px;
            display: grid; place-items: center;
            background: rgba(91,103,241,.15); color: #aab2ff; font-weight: 800;
        }
        .pain-item h3 { font-size: 16px; margin-bottom: 5px; }
        .pain-item p { color: var(--muted); font-size: 13px; margin-bottom: 0; line-height: 1.7; }

        .solution-panel {
            padding: 30px;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, rgba(91,103,241,.2), rgba(17,24,42,.88));
            border: 1px solid var(--border-strong);
            box-shadow: var(--shadow);
        }
        .solution-panel h3 { font-size: 23px; margin-bottom: 11px; }
        .solution-panel > p { color: var(--muted); }
        .solution-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 25px; }
        .solution-point {
            padding: 17px;
            border-radius: 15px;
            background: rgba(0,0,0,.18);
            border: 1px solid rgba(255,255,255,.08);
        }
        .solution-point i { color: var(--cyan); margin-bottom: 9px; }
        .solution-point strong { display: block; font-size: 14px; }
        .solution-point span { color: var(--muted); font-size: 12px; }

        .scene-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 15px; }
        .scene-card {
            position: relative;
            min-height: 260px;
            overflow: hidden;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            background: var(--panel);
        }
        .scene-card.large { grid-row: span 2; min-height: 535px; }
        .scene-card img { width: 100%; height: 100%; object-fit: cover; opacity: .54; transition: .5s ease; }
        .scene-card:hover img { transform: scale(1.05); opacity: .7; }
        .scene-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 24%, rgba(5,8,16,.9) 100%); }
        .scene-content { position: absolute; z-index: 2; left: 23px; right: 23px; bottom: 22px; }
        .scene-content h3 { margin-bottom: 5px; font-size: 19px; }
        .scene-content p { color: #c0c7d9; font-size: 13px; margin-bottom: 0; }

        .node-wrap {
            display: grid;
            grid-template-columns: 1fr .72fr;
            gap: 18px;
            align-items: stretch;
        }
        .node-list, .node-map {
            padding: 27px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            background: var(--panel);
        }
        .node-list h3, .node-map h3 { margin-bottom: 21px; font-size: 20px; }
        .node-row {
            display: grid;
            grid-template-columns: 1.2fr .7fr .5fr;
            align-items: center;
            gap: 12px;
            padding: 15px 0;
            border-top: 1px solid var(--border);
            font-size: 13px;
        }
        .node-row:first-of-type { border-top: 0; padding-top: 0; }
        .node-state { color: #70edbd; font-size: 12px; }
        .latency { color: #cbd2e2; text-align: right; }
        .node-map {
            background:
                radial-gradient(circle at 50% 48%, rgba(53,212,244,.15), transparent 42%),
                var(--panel);
        }
        .map-visual { position: relative; min-height: 195px; margin-top: 15px; border: 1px solid rgba(129,140,248,.15); border-radius: 18px; overflow: hidden; background: repeating-linear-gradient(30deg, rgba(255,255,255,.025) 0 1px, transparent 1px 32px), repeating-linear-gradient(150deg, rgba(255,255,255,.02) 0 1px, transparent 1px 32px); }
        .map-dot { position: absolute; width: 10px; height: 10px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 7px rgba(53,212,244,.12), 0 0 20px var(--cyan); }
        .map-dot.one { top: 27%; left: 27%; } .map-dot.two { top: 45%; left: 57%; } .map-dot.three { top: 68%; left: 75%; } .map-dot.four { top: 58%; left: 38%; }
        .map-line { position: absolute; height: 1px; background: linear-gradient(90deg, transparent, var(--cyan), transparent); transform-origin: left; opacity: .65; }
        .line-a { width: 180px; top: 31%; left: 29%; transform: rotate(22deg); }
        .line-b { width: 165px; top: 48%; left: 39%; transform: rotate(27deg); }
        .line-c { width: 120px; top: 61%; left: 39%; transform: rotate(-8deg); }

        .compare-box {
            overflow-x: auto;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            background: var(--panel);
        }
        .compare-table { width: 100%; min-width: 680px; border-collapse: collapse; }
        .compare-table th, .compare-table td { padding: 20px 24px; border-bottom: 1px solid var(--border); text-align: left; }
        .compare-table th { color: var(--muted); font-size: 12px; font-weight: 600; }
        .compare-table td { font-size: 14px; color: #dce1ee; }
        .compare-table tr:last-child td { border-bottom: 0; }
        .compare-table td:not(:first-child) { text-align: center; }
        .check { color: #70edbd; } .cross { color: #68738d; }

        .quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; }
        .quote-card {
            padding: 27px;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            background: linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.018));
        }
        .quote-stars { color: #f9c96c; letter-spacing: 3px; font-size: 13px; margin-bottom: 18px; }
        .quote-card blockquote { margin: 0 0 24px; color: #d9deeb; font-size: 15px; line-height: 1.85; }
        .quote-user { display: flex; align-items: center; gap: 11px; color: var(--muted); font-size: 12px; }
        .avatar { width: 35px; height: 35px; display: grid; place-items: center; border-radius: 50%; background: linear-gradient(135deg, #6573ff, #2acbe8); color: #fff; font-weight: 800; }

        .news-grid { display: grid; grid-template-columns: 1.1fr .9fr .9fr; gap: 15px; }
        .news-card { padding: 25px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(255,255,255,.025); transition: .25s ease; }
        .news-card:hover { transform: translateY(-4px); border-color: var(--border-strong); background: rgba(91,103,241,.08); }
        .news-date { color: var(--cyan); font-size: 12px; font-weight: 700; }
        .news-card h3 { font-size: 18px; line-height: 1.45; margin: 13px 0 9px; }
        .news-card p { color: var(--muted); font-size: 13px; margin-bottom: 15px; }
        .news-link { color: #aeb8ff; font-size: 13px; font-weight: 700; }

        .plan-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; align-items: stretch; }
        .plan {
            position: relative;
            padding: 26px 22px;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            background: var(--panel);
        }
        .plan.featured { border-color: var(--primary-light); background: linear-gradient(160deg, rgba(91,103,241,.22), var(--panel)); transform: translateY(-9px); }
        .plan-badge { position: absolute; top: 16px; right: 16px; padding: 4px 8px; border-radius: 99px; color: #dffcff; background: rgba(53,212,244,.13); font-size: 10px; }
        .plan h3 { font-size: 19px; margin-bottom: 8px; }
        .plan p { color: var(--muted); font-size: 12px; min-height: 45px; }
        .plan-price { font-size: 35px; font-weight: 800; letter-spacing: -.06em; margin: 18px 0; }
        .plan-price small { color: var(--muted); font-size: 12px; font-weight: 400; letter-spacing: 0; }
        .plan-list { padding: 0; margin: 0 0 23px; list-style: none; color: #bbc4d8; font-size: 12px; }
        .plan-list li { margin: 9px 0; }
        .plan-list i { color: #70edbd; margin-right: 7px; }
        .plan .button-secondary, .plan .button-primary { width: 100%; }

        .guarantee-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; }
        .guarantee {
            padding: 24px 20px;
            border-left: 2px solid var(--primary);
            background: rgba(255,255,255,.025);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
        }
        .guarantee i { color: var(--cyan); font-size: 20px; margin-bottom: 16px; }
        .guarantee h3 { font-size: 15px; margin-bottom: 6px; }
        .guarantee p { color: var(--muted); font-size: 12px; line-height: 1.7; margin-bottom: 0; }

        .faq-list { max-width: 900px; margin: 0 auto; }
        .faq-item { border-bottom: 1px solid var(--border); }
        .faq-item summary { cursor: pointer; list-style: none; padding: 22px 0; font-weight: 700; display: flex; justify-content: space-between; gap: 20px; }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::after { content: "+"; color: var(--cyan); font-size: 22px; font-weight: 400; }
        .faq-item[open] summary::after { content: "−"; }
        .faq-answer { padding: 0 45px 22px 0; color: var(--muted); font-size: 14px; }

        .conversion {
            padding: 80px 0;
            background: linear-gradient(120deg, #111938, #15122a 55%, #0b2632);
            border-top: 1px solid var(--border-strong);
            border-bottom: 1px solid var(--border-strong);
        }
        .conversion-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 60px; align-items: center; }
        .conversion h2 { font-size: clamp(31px, 4vw, 51px); line-height: 1.2; letter-spacing: -.06em; margin: 15px 0; }
        .conversion-copy { color: #b9c2d8; max-width: 520px; }
        .lead-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 13px;
            padding: 25px;
            border: 1px solid rgba(255,255,255,.14);
            border-radius: var(--radius-lg);
            background: rgba(5,9,20,.4);
            backdrop-filter: blur(13px);
        }
        .lead-form label { color: #bfc8dd; font-size: 12px; }
        .lead-form input, .lead-form textarea {
            width: 100%;
            margin-top: 7px;
            padding: 12px 14px;
            border: 1px solid var(--border);
            border-radius: 11px;
            color: var(--text);
            background: rgba(255,255,255,.06);
        }
        .lead-form input::placeholder, .lead-form textarea::placeholder { color: #69758e; }
        .lead-form textarea { min-height: 104px; resize: vertical; }
        .form-full { grid-column: 1 / -1; }
        .form-submit { grid-column: 1 / -1; display: flex; align-items: center; gap: 15px; }
        .form-message { color: #83f2c5; font-size: 12px; display: none; }

        .site-footer { padding: 52px 0 25px; background: #06080f; }
        .footer-top { display: grid; grid-template-columns: 1.2fr repeat(3, 1fr); gap: 35px; padding-bottom: 42px; }
        .footer-brand p { max-width: 310px; color: var(--muted-2); font-size: 13px; margin-top: 16px; }
        .footer-col h3 { font-size: 13px; margin-bottom: 15px; }
        .footer-col a { display: block; color: var(--muted-2); font-size: 12px; margin: 8px 0; transition: .2s ease; }
        .footer-col a:hover { color: var(--text); }
        .footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 22px; border-top: 1px solid var(--border); color: #59657e; font-size: 11px; }

        @media (max-width: 1024px) {
            .hero-grid, .pain-layout, .solution-layout, .conversion-grid { gap: 35px; }
            .metric-grid, .plan-grid, .guarantee-grid { grid-template-columns: repeat(2, 1fr); }
            .scene-grid { grid-template-columns: 1fr 1fr; }
            .scene-card.large { grid-row: auto; min-height: 340px; grid-column: span 2; }
            .news-grid { grid-template-columns: 1fr 1fr; }
            .news-card:first-child { grid-column: span 2; }
        }
        @media (max-width: 768px) {
            .container { width: min(var(--container), calc(100% - 32px)); }
            .nav-shell { min-height: 68px; }
            .nav-toggle { display: block; }
            .main-nav {
                display: none;
                position: absolute;
                top: 68px;
                left: 16px;
                right: 16px;
                padding: 12px;
                flex-direction: column;
                align-items: stretch;
                background: rgba(13,18,32,.98);
                border: 1px solid var(--border);
                border-radius: 16px;
                box-shadow: var(--shadow);
            }
            .main-nav.open { display: flex; }
            .main-nav a { padding: 12px 14px; }
            .nav-action { min-height: 40px; padding: 0 13px; font-size: 12px; }
            .hero { padding: 64px 0 55px; }
            .hero-grid, .pain-layout, .solution-layout, .node-wrap, .conversion-grid { grid-template-columns: 1fr; }
            .hero-stage { min-height: 360px; }
            .hero-stage img { min-height: 360px; }
            .section { padding: 73px 0; }
            .footer-top { grid-template-columns: 1fr 1fr; }
            .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 520px) {
            h1 { font-size: 43px; }
            .hero-copy { font-size: 15px; }
            .hero-actions, .hero-actions a { width: 100%; }
            .hero-actions a { text-align: center; }
            .metric-grid, .plan-grid, .guarantee-grid, .quote-grid, .news-grid, .scene-grid { grid-template-columns: 1fr; }
            .scene-card.large, .news-card:first-child { grid-column: auto; }
            .scene-card, .scene-card.large { min-height: 250px; }
            .solution-points { grid-template-columns: 1fr; }
            .lead-form { grid-template-columns: 1fr; }
            .form-full, .form-submit { grid-column: auto; }
            .form-submit { flex-direction: column; align-items: stretch; }
            .footer-top { grid-template-columns: 1fr 1fr; gap: 22px; }
            .footer-bottom { flex-direction: column; gap: 6px; }
            .signal-card { left: 15px; right: 15px; bottom: 15px; padding: 17px; }
            .signal-value { font-size: 31px; }
        }

/* roulang page: category2 */
:root {
 --bg:#080b14;
 --bg-soft:#0d1220;
 --panel:#11182a;
 --panel-light:#151f35;
 --primary:#5b67f1;
 --primary-light:#818cf8;
 --cyan:#35d4f4;
 --text:#f7f8ff;
 --muted:#98a4bd;
 --muted-2:#6f7b96;
 --border:rgba(151,163,194,.16);
 --border-strong:rgba(129,140,248,.38);
 --radius-lg:28px;
 --radius-md:18px;
 --shadow:0 24px 70px rgba(0,0,0,.28);
 --container:1180px;
}
html{scroll-behavior:smooth}
*{box-sizing:border-box}
body{
 margin:0;
 background:radial-gradient(circle at 75% 7%,rgba(91,103,241,.16),transparent 27rem),radial-gradient(circle at 8% 28%,rgba(53,212,244,.07),transparent 24rem),var(--bg);
 color:var(--text);
 font-family:"Noto Sans SC","Inter",sans-serif;
 line-height:1.75;
 overflow-x:hidden;
}
body,button,input,textarea{font-family:inherit}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea{outline:none}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(53,212,244,.55);outline-offset:3px}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:30;background:rgba(8,11,20,.82);backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.07)}
.nav-shell{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:inline-flex;align-items:center;gap:12px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
.brand-mark{width:38px;height:38px;border-radius:13px;display:grid;place-items:center;color:#fff;background:linear-gradient(145deg,var(--primary-light),var(--primary));box-shadow:0 8px 24px rgba(91,103,241,.35);font-size:18px}
.brand-name{font-size:17px}
.main-nav{display:flex;align-items:center;gap:7px}
.main-nav a{color:var(--muted);padding:9px 14px;border-radius:10px;font-size:14px;transition:.25s ease}
.main-nav a:hover,.main-nav a.active{color:var(--text);background:rgba(129,140,248,.12)}
.nav-action,.button-primary{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 19px;border-radius:12px;border:1px solid transparent;background:var(--primary);color:#fff;font-weight:700;font-size:14px;box-shadow:0 12px 28px rgba(91,103,241,.25);transition:.25s ease}
.nav-action:hover,.button-primary:hover{color:#fff;transform:translateY(-2px);background:#6974ff;box-shadow:0 16px 35px rgba(91,103,241,.38)}
.button-secondary{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 19px;border-radius:12px;border:1px solid var(--border-strong);color:var(--text);background:rgba(255,255,255,.035);font-weight:700;font-size:14px;transition:.25s ease}
.button-secondary:hover{color:var(--text);background:rgba(129,140,248,.13);transform:translateY(-2px)}
.nav-toggle{display:none;color:var(--text);background:none;border:0;font-size:22px}
.page-hero{padding:84px 0 70px;position:relative;overflow:hidden}
.page-hero:before{content:"";position:absolute;width:420px;height:420px;right:-160px;top:-170px;border:1px solid rgba(129,140,248,.14);border-radius:50%;box-shadow:0 0 0 35px rgba(129,140,248,.035),0 0 0 70px rgba(129,140,248,.025)}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:72px;align-items:center}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:#aeb8ff;font-size:12px;letter-spacing:.13em;text-transform:uppercase;font-weight:800}
.eyebrow:before,.section-kicker:before{content:"";width:25px;height:2px;background:var(--cyan);box-shadow:0 0 14px var(--cyan)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(42px,5vw,70px);line-height:1.12;letter-spacing:-.065em;margin:18px 0 23px;font-weight:800}
h2{font-size:clamp(28px,3vw,43px);line-height:1.2;letter-spacing:-.05em;margin:13px 0 15px}
h3{font-size:20px;line-height:1.35;margin-bottom:10px}
.hero-copy{max-width:650px;color:var(--muted);font-size:17px;line-height:1.9;margin-bottom:30px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-note{display:flex;align-items:center;gap:10px;color:var(--muted-2);font-size:13px;margin-top:22px}
.hero-note i{color:#67e8f9}
.hero-visual{position:relative;min-height:490px;border-radius:34px;overflow:hidden;border:1px solid var(--border);background:#11182a;box-shadow:var(--shadow)}
.hero-visual img{width:100%;height:100%;min-height:490px;object-fit:cover;opacity:.47}
.hero-visual:after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(9,13,25,.92),rgba(13,18,32,.32),rgba(91,103,241,.35))}
.connection-panel{position:absolute;z-index:2;left:28px;right:28px;bottom:28px;padding:22px;border-radius:22px;background:rgba(12,17,31,.86);border:1px solid rgba(255,255,255,.13);backdrop-filter:blur(14px)}
.panel-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.panel-title{font-weight:700}.live-badge{font-size:11px;color:#81f5c1;border:1px solid rgba(129,245,193,.28);padding:4px 9px;border-radius:20px;background:rgba(129,245,193,.07)}
.route-line{height:7px;border-radius:20px;background:linear-gradient(90deg,var(--cyan),var(--primary));box-shadow:0 0 18px rgba(53,212,244,.4);margin-bottom:15px}
.route-info{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}
.route-info strong{color:var(--text);font-size:16px}
.section{padding:92px 0}
.section-alt{background:rgba(255,255,255,.018);border-top:1px solid rgba(255,255,255,.04);border-bottom:1px solid rgba(255,255,255,.04)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:37px}
.section-intro{max-width:650px;color:var(--muted);margin:0}
.section-link{color:#aeb8ff;font-size:14px;font-weight:700;white-space:nowrap}
.section-link i{margin-left:6px;transition:.2s}
.section-link:hover{color:#fff}.section-link:hover i{transform:translateX(4px)}
.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.scenario-card{position:relative;min-height:245px;padding:27px;border-radius:var(--radius-lg);background:linear-gradient(145deg,rgba(21,31,53,.92),rgba(15,22,39,.88));border:1px solid var(--border);overflow:hidden;transition:.3s ease}
.scenario-card:after{content:"";position:absolute;width:130px;height:130px;right:-45px;bottom:-55px;border-radius:50%;background:rgba(91,103,241,.17);filter:blur(5px)}
.scenario-card:hover{transform:translateY(-6px);border-color:var(--border-strong);box-shadow:0 20px 45px rgba(0,0,0,.22)}
.icon-box{width:48px;height:48px;display:grid;place-items:center;border-radius:15px;background:rgba(91,103,241,.16);color:#aeb8ff;font-size:20px;margin-bottom:24px}
.scenario-card p,.feature-copy p,.faq-answer{color:var(--muted);font-size:14px;line-height:1.8;margin-bottom:0}
.scenario-card .tag{position:absolute;right:22px;top:24px}
.tag{display:inline-flex;align-items:center;border:1px solid rgba(129,140,248,.27);background:rgba(129,140,248,.08);color:#b8bdff;border-radius:30px;padding:5px 10px;font-size:11px}
.split-section{display:grid;grid-template-columns:.82fr 1.18fr;gap:70px;align-items:center}
.compare-board{padding:26px;border-radius:var(--radius-lg);background:var(--panel);border:1px solid var(--border);box-shadow:var(--shadow)}
.compare-row{display:grid;grid-template-columns:1fr 1fr 1fr;align-items:center;gap:14px;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.07);font-size:13px}
.compare-row:last-child{border-bottom:0}
.compare-row strong{font-size:17px;color:#fff}.compare-row span{color:var(--muted)}
.compare-label{color:var(--text)!important;font-weight:700}
.status-dot{display:inline-flex;align-items:center;gap:7px;color:#8bf0c0!important}
.status-dot:before{content:"";width:7px;height:7px;border-radius:50%;background:#65e6ad;box-shadow:0 0 12px #65e6ad}
.feature-list{display:grid;gap:18px;margin-top:28px}
.feature-item{display:flex;gap:15px;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.feature-item:last-child{border-bottom:0}
.feature-item i{color:var(--cyan);margin-top:5px}.feature-item strong{display:block;margin-bottom:4px}.feature-item span{color:var(--muted);font-size:14px}
.device-band{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
.device-card{padding:25px 20px;border:1px solid var(--border);border-radius:20px;background:rgba(17,24,42,.7);transition:.25s ease}
.device-card:hover{background:var(--panel-light);border-color:var(--border-strong);transform:translateY(-4px)}
.device-card i{color:#aeb8ff;font-size:22px;margin-bottom:18px}.device-card strong{display:block;margin-bottom:5px}.device-card span{display:block;color:var(--muted);font-size:13px}
.game-strip{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
.game-feature{min-height:280px;padding:31px;border-radius:var(--radius-lg);border:1px solid var(--border);background:linear-gradient(135deg,rgba(91,103,241,.2),rgba(17,24,42,.85));display:flex;flex-direction:column;justify-content:end}
.game-feature p,.game-card p{color:var(--muted);font-size:14px;margin-bottom:0}
.game-list{display:grid;grid-template-columns:1fr 1fr;gap:15px}
.game-card{padding:22px;border-radius:20px;background:var(--panel);border:1px solid var(--border)}
.game-card i{color:var(--cyan);font-size:18px;margin-bottom:17px}.game-card strong{display:block;margin-bottom:7px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;background:var(--border)}
.stat{background:var(--panel);padding:29px 25px}.stat strong{display:block;font-size:34px;letter-spacing:-.06em;margin-bottom:5px}.stat span{color:var(--muted);font-size:13px}
.stat em{color:var(--cyan);font-size:16px;font-style:normal}
.faq-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:70px}
.faq-list{display:grid;gap:11px}
.faq-item{border:1px solid var(--border);border-radius:16px;background:rgba(17,24,42,.72);overflow:hidden}
.faq-question{width:100%;border:0;background:none;color:var(--text);display:flex;justify-content:space-between;text-align:left;gap:18px;padding:20px 22px;font-size:15px;font-weight:700;cursor:pointer}
.faq-question i{color:var(--primary-light);transition:.25s}
.faq-answer{display:none;padding:0 22px 20px}
.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question i{transform:rotate(45deg)}
.cta-section{padding:70px 0}
.cta-box{position:relative;overflow:hidden;padding:48px 54px;border-radius:var(--radius-lg);background:linear-gradient(110deg,#202962,#11182a 72%);border:1px solid var(--border-strong);display:flex;justify-content:space-between;align-items:center;gap:30px}
.cta-box:after{content:"";position:absolute;width:250px;height:250px;right:-70px;top:-120px;border:1px solid rgba(53,212,244,.22);border-radius:50%;box-shadow:0 0 0 25px rgba(53,212,244,.04),0 0 0 50px rgba(53,212,244,.03)}
.cta-box h2{max-width:620px;margin-bottom:9px}.cta-box p{color:var(--muted);margin:0}
.site-footer{padding:62px 0 25px;background:#070a12;border-top:1px solid rgba(255,255,255,.06)}
.footer-top{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.1fr;gap:45px;padding-bottom:48px}
.footer-brand p{color:var(--muted);font-size:14px;max-width:320px;margin:20px 0 0}
.footer-col{display:flex;flex-direction:column;gap:10px}.footer-col h3{font-size:14px;margin:0 0 8px;color:#fff}.footer-col a{color:var(--muted);font-size:13px;transition:.2s}.footer-col a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);color:var(--muted-2);font-size:12px}
@media(max-width:1024px){.hero-grid,.split-section,.faq-layout{gap:38px}.main-nav a{padding:9px 8px}.scenario-grid{grid-template-columns:repeat(2,1fr)}.footer-top{grid-template-columns:1.5fr 1fr 1fr}.footer-col:last-child{grid-column:span 3}}
@media(max-width:768px){.container{width:min(var(--container),calc(100% - 32px))}.nav-shell{min-height:70px}.nav-toggle{display:block}.main-nav{display:none;position:absolute;top:70px;left:16px;right:16px;padding:12px;flex-direction:column;align-items:stretch;background:rgba(13,18,32,.98);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow)}.main-nav.open{display:flex}.main-nav a{padding:12px 14px}.nav-action{display:none}.page-hero{padding:60px 0 50px}.hero-grid,.split-section,.faq-layout,.game-strip{grid-template-columns:1fr}.hero-visual{min-height:390px}.hero-visual img{min-height:390px}.section{padding:68px 0}.section-head{display:block}.section-link{display:inline-block;margin-top:16px}.device-band{grid-template-columns:repeat(2,1fr)}.stats{grid-template-columns:repeat(2,1fr)}.cta-box{display:block;padding:35px 28px}.cta-box .button-primary{margin-top:23px}.footer-top{grid-template-columns:1fr 1fr;gap:32px}.footer-col:last-child{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:6px}}
@media(max-width:520px){h1{font-size:41px}.hero-copy{font-size:15px}.scenario-grid,.device-band,.game-list,.stats{grid-template-columns:1fr}.hero-actions{display:grid}.hero-actions a{width:100%}.connection-panel{left:15px;right:15px;bottom:15px}.compare-row{grid-template-columns:1.2fr .8fr .8fr;gap:8px;font-size:12px}.compare-row strong{font-size:15px}.footer-top{grid-template-columns:1fr}.footer-col:last-child{grid-column:auto}}

/* roulang page: category1 */
:root {
        --bg:#080b14;
        --bg-soft:#0d1220;
        --panel:#11182a;
        --panel-light:#151f35;
        --primary:#5b67f1;
        --primary-light:#818cf8;
        --cyan:#35d4f4;
        --text:#f7f8ff;
        --muted:#98a4bd;
        --muted-2:#6f7b96;
        --border:rgba(151,163,194,.16);
        --border-strong:rgba(129,140,248,.38);
        --radius-lg:28px;
        --radius-md:18px;
        --shadow:0 24px 70px rgba(0,0,0,.28);
        --container:1180px;
    }
    * { box-sizing:border-box; }
    html { scroll-behavior:smooth; }
    body {
        margin:0;
        background:
            radial-gradient(circle at 82% 5%,rgba(91,103,241,.16),transparent 28rem),
            radial-gradient(circle at 8% 32%,rgba(53,212,244,.07),transparent 24rem),
            var(--bg);
        color:var(--text);
        font-family:"Noto Sans SC","Inter",sans-serif;
        line-height:1.75;
        overflow-x:hidden;
    }
    body,button,input,textarea { font-family:inherit; }
    a { color:inherit;text-decoration:none; }
    img { display:block;max-width:100%; }
    button,input,textarea { outline:none; }
    a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible {
        outline:3px solid rgba(53,212,244,.6);
        outline-offset:3px;
    }
    .container { width:min(var(--container),calc(100% - 48px));margin:0 auto; }
    .site-header {
        position:sticky;top:0;z-index:30;
        background:rgba(8,11,20,.82);
        backdrop-filter:blur(18px);
        border-bottom:1px solid rgba(255,255,255,.07);
    }
    .nav-shell {
        min-height:78px;display:flex;align-items:center;
        justify-content:space-between;gap:28px;
    }
    .brand { display:inline-flex;align-items:center;gap:12px;font-weight:800;letter-spacing:-.04em;white-space:nowrap; }
    .brand-mark {
        width:38px;height:38px;border-radius:13px;display:grid;place-items:center;
        color:#fff;background:linear-gradient(145deg,var(--primary-light),var(--primary));
        box-shadow:0 8px 24px rgba(91,103,241,.35);font-size:18px;
    }
    .brand-name { font-size:17px; }
    .main-nav { display:flex;align-items:center;gap:7px; }
    .main-nav a {
        color:var(--muted);padding:9px 14px;border-radius:10px;font-size:14px;transition:.25s ease;
    }
    .main-nav a:hover,.main-nav a.active { color:var(--text);background:rgba(129,140,248,.12); }
    .nav-action,.button-primary {
        display:inline-flex;align-items:center;justify-content:center;gap:9px;
        min-height:46px;padding:0 19px;border-radius:12px;border:1px solid transparent;
        background:var(--primary);color:#fff;font-weight:700;font-size:14px;
        box-shadow:0 12px 28px rgba(91,103,241,.25);transition:.25s ease;
    }
    .nav-action:hover,.button-primary:hover {
        color:#fff;transform:translateY(-2px);background:#6974ff;
        box-shadow:0 16px 35px rgba(91,103,241,.38);
    }
    .button-secondary {
        display:inline-flex;align-items:center;justify-content:center;gap:9px;
        min-height:46px;padding:0 19px;border-radius:12px;border:1px solid var(--border-strong);
        color:var(--text);background:rgba(255,255,255,.035);font-weight:700;font-size:14px;transition:.25s ease;
    }
    .button-secondary:hover { color:var(--text);background:rgba(129,140,248,.13);transform:translateY(-2px); }
    .nav-toggle { display:none;color:var(--text);background:none;border:0;font-size:22px; }
    .page-hero { padding:82px 0 55px;border-bottom:1px solid rgba(255,255,255,.06); }
    .hero-grid { display:grid;grid-template-columns:1.04fr .96fr;align-items:center;gap:68px; }
    .eyebrow,.section-kicker {
        display:inline-flex;align-items:center;gap:8px;color:#aeb8ff;
        font-size:12px;letter-spacing:.13em;text-transform:uppercase;font-weight:800;
    }
    .eyebrow:before,.section-kicker:before {
        content:"";width:25px;height:2px;background:var(--cyan);box-shadow:0 0 14px var(--cyan);
    }
    h1,h2,h3,p { margin-top:0; }
    h1 {
        margin:18px 0 22px;max-width:700px;font-size:clamp(42px,5.4vw,76px);
        line-height:1.08;letter-spacing:-.065em;font-weight:800;
    }
    h2 { margin:12px 0 14px;font-size:clamp(28px,3vw,45px);line-height:1.2;letter-spacing:-.05em; }
    h3 { line-height:1.35; }
    .hero-copy { max-width:650px;color:var(--muted);font-size:17px;line-height:1.9;margin-bottom:30px; }
    .hero-actions { display:flex;gap:12px;flex-wrap:wrap; }
    .hero-note { display:flex;align-items:center;gap:10px;color:var(--muted-2);font-size:13px;margin-top:22px; }
    .hero-note i { color:#67e8f9; }
    .hero-stage {
        position:relative;min-height:410px;overflow:hidden;border:1px solid var(--border);
        border-radius:34px;background:#121a2b;box-shadow:var(--shadow);
    }
    .hero-stage img { width:100%;height:410px;object-fit:cover;opacity:.42; }
    .hero-stage:after {
        content:"";position:absolute;inset:0;
        background:linear-gradient(135deg,rgba(13,18,32,.94),rgba(13,18,32,.25),rgba(91,103,241,.28));
    }
    .signal-card {
        position:absolute;z-index:2;left:28px;right:28px;bottom:26px;
        padding:20px;border:1px solid rgba(255,255,255,.14);border-radius:20px;
        background:rgba(10,14,27,.78);backdrop-filter:blur(15px);
    }
    .signal-head { display:flex;align-items:center;justify-content:space-between;margin-bottom:15px; }
    .signal-title { font-weight:700;font-size:14px; }
    .live-dot { display:inline-flex;align-items:center;gap:7px;color:#79f2c0;font-size:12px; }
    .live-dot:before { content:"";width:7px;height:7px;border-radius:50%;background:#79f2c0;box-shadow:0 0 12px #79f2c0; }
    .signal-line { display:flex;align-items:end;gap:5px;height:62px;border-bottom:1px solid rgba(255,255,255,.12); }
    .signal-line span { flex:1;border-radius:5px 5px 0 0;background:linear-gradient(180deg,var(--cyan),var(--primary));opacity:.86; }
    .signal-meta { display:flex;justify-content:space-between;margin-top:12px;color:var(--muted);font-size:12px; }
    .metric-strip { padding:28px 0 24px;background:rgba(255,255,255,.018);border-bottom:1px solid var(--border); }
    .metrics { display:grid;grid-template-columns:repeat(4,1fr);gap:18px; }
    .metric { padding:4px 20px;border-right:1px solid var(--border); }
    .metric:last-child { border-right:0; }
    .metric strong { display:block;font-size:30px;line-height:1.25;letter-spacing:-.05em; }
    .metric span { color:var(--muted);font-size:13px; }
    .section { padding:92px 0; }
    .section-alt { background:linear-gradient(180deg,rgba(255,255,255,.018),transparent); }
    .section-heading { display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:38px; }
    .section-heading p { max-width:510px;color:var(--muted);margin-bottom:0; }
    .service-layout { display:grid;grid-template-columns:.75fr 1.25fr;gap:22px; }
    .service-intro,.service-card,.compare-panel,.timeline-panel,.security-panel,.quick-panel,.faq-item,.cta-box {
        border:1px solid var(--border);background:rgba(17,24,42,.78);border-radius:var(--radius-lg);
    }
    .service-intro { padding:32px;display:flex;flex-direction:column;justify-content:space-between;min-height:350px; }
    .service-intro h3 { font-size:25px;margin:15px 0 12px; }
    .service-intro p { color:var(--muted);font-size:14px; }
    .mini-list { list-style:none;padding:0;margin:25px 0 0; }
    .mini-list li { display:flex;gap:10px;align-items:flex-start;color:var(--muted);font-size:13px;margin:12px 0; }
    .mini-list i { color:var(--cyan);margin-top:5px; }
    .service-cards { display:grid;grid-template-columns:repeat(2,1fr);gap:18px; }
    .service-card { padding:27px;transition:.25s ease; }
    .service-card:hover { transform:translateY(-5px);border-color:var(--border-strong);box-shadow:var(--shadow); }
    .icon-box { width:44px;height:44px;display:grid;place-items:center;border-radius:14px;color:#aeb8ff;background:rgba(91,103,241,.16);font-size:18px; }
    .service-card h3 { margin:20px 0 8px;font-size:18px; }
    .service-card p { color:var(--muted);font-size:14px;margin-bottom:0; }
    .compare-panel { overflow:hidden; }
    .compare-row { display:grid;grid-template-columns:1.2fr .9fr .9fr;padding:17px 25px;border-bottom:1px solid var(--border);align-items:center;gap:18px; }
    .compare-row:last-child { border-bottom:0; }
    .compare-row.header { color:#b8c0ff;background:rgba(91,103,241,.11);font-size:12px;font-weight:800;letter-spacing:.06em; }
    .compare-row strong { font-size:14px; }
    .compare-row span { color:var(--muted);font-size:13px; }
    .good { color:#79f2c0!important; }
    .timeline-panel { padding:31px; }
    .timeline { display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:26px; }
    .timeline-step { position:relative;padding:0 22px 0 0; }
    .timeline-step:not(:last-child):after { content:"";position:absolute;top:17px;left:38px;right:0;height:1px;background:var(--border-strong); }
    .step-num { position:relative;z-index:1;width:35px;height:35px;display:grid;place-items:center;border-radius:50%;color:#fff;background:var(--primary);font-size:13px;font-weight:800;box-shadow:0 0 0 7px rgba(91,103,241,.12); }
    .timeline-step h3 { font-size:15px;margin:21px 0 7px; }
    .timeline-step p { color:var(--muted);font-size:13px;margin-bottom:0; }
    .news-layout { display:grid;grid-template-columns:1.05fr .95fr;gap:20px; }
    .news-feature { min-height:300px;padding:30px;display:flex;flex-direction:column;justify-content:end;border-radius:var(--radius-lg);overflow:hidden;position:relative;background:linear-gradient(120deg,rgba(91,103,241,.75),rgba(17,24,42,.7)),url("https://images.unsplash.com/photo-1550745165-9bc0b252726f?auto=format&fit=crop&w=1200&q=85") center/cover; }
    .news-feature h3 { max-width:530px;font-size:27px;letter-spacing:-.04em;margin:12px 0 8px; }
    .news-feature p { max-width:520px;color:#d5d9ed;margin-bottom:0;font-size:14px; }
    .news-list { display:flex;flex-direction:column;gap:12px; }
    .news-item { display:flex;gap:16px;align-items:center;padding:18px 20px;border:1px solid var(--border);border-radius:17px;background:rgba(17,24,42,.7);transition:.25s ease; }
    .news-item:hover { background:var(--panel-light);border-color:var(--border-strong); }
    .news-date { min-width:52px;color:var(--cyan);font-size:12px;font-weight:700; }
    .news-item h3 { margin:0 0 4px;font-size:14px; }
    .news-item p { color:var(--muted);font-size:12px;margin:0; }
    .protection-grid { display:grid;grid-template-columns:1fr 1fr;gap:20px; }
    .security-panel { padding:31px; }
    .security-panel h3 { font-size:21px;margin:17px 0 10px; }
    .security-panel p { color:var(--muted);font-size:14px; }
    .security-points { display:grid;grid-template-columns:1fr 1fr;gap:13px;margin-top:22px; }
    .security-points div { display:flex;gap:9px;color:#c5cce0;font-size:13px; }
    .security-points i { color:var(--cyan);margin-top:5px; }
    .quick-panel { padding:29px;display:grid;grid-template-columns:1fr 1fr;gap:15px;align-content:start; }
    .quick-item { padding:18px;border-radius:16px;background:rgba(255,255,255,.035); }
    .quick-item strong { display:block;font-size:14px;margin-bottom:5px; }
    .quick-item span { color:var(--muted);font-size:12px; }
    .faq-list { display:grid;grid-template-columns:1fr 1fr;gap:14px; }
    .faq-item { padding:22px 24px; }
    .faq-item h3 { display:flex;justify-content:space-between;gap:15px;font-size:15px;margin:0 0 9px; }
    .faq-item h3 i { color:var(--primary-light);font-size:13px;margin-top:5px; }
    .faq-item p { color:var(--muted);font-size:13px;margin:0; }
    .cta-section { padding:40px 0 96px; }
    .cta-box { position:relative;overflow:hidden;padding:43px 48px;background:linear-gradient(120deg,rgba(91,103,241,.28),rgba(17,24,42,.9)); }
    .cta-box:after { content:"";position:absolute;width:280px;height:280px;border-radius:50%;right:-90px;top:-140px;background:rgba(53,212,244,.1);filter:blur(3px); }
    .cta-content { position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:30px; }
    .cta-box h2 { margin-bottom:8px; }
    .cta-box p { color:#b6bfd8;margin-bottom:0;max-width:610px; }
    .site-footer { padding:62px 0 25px;border-top:1px solid var(--border);background:#070a12; }
    .footer-top { display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px; }
    .footer-brand p { max-width:330px;color:var(--muted);font-size:13px;margin:18px 0 0; }
    .footer-col { display:flex;flex-direction:column;gap:10px; }
    .footer-col h3 { color:var(--text);font-size:14px;margin:0 0 7px; }
    .footer-col a { color:var(--muted);font-size:13px;transition:.2s ease; }
    .footer-col a:hover { color:var(--cyan); }
    .footer-bottom { display:flex;justify-content:space-between;gap:18px;padding-top:22px;border-top:1px solid var(--border);color:var(--muted-2);font-size:12px; }
    @media (max-width:1024px) {
        .hero-grid,.news-layout { gap:35px; }
        .footer-top { grid-template-columns:1.3fr 1fr 1fr; }
        .footer-brand { grid-column:1/-1; }
    }
    @media (max-width:768px) {
        .container { width:min(var(--container),calc(100% - 32px)); }
        .nav-shell { min-height:68px; }
        .nav-toggle { display:block; }
        .main-nav {
            display:none;position:absolute;left:16px;right:16px;top:74px;padding:10px;
            flex-direction:column;align-items:stretch;background:rgba(13,18,32,.98);
            border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);
        }
        .main-nav.open { display:flex; }
        .main-nav a { padding:12px 14px; }
        .nav-action { min-height:40px;padding:0 13px;font-size:12px; }
        .hero-grid,.service-layout,.protection-grid { grid-template-columns:1fr; }
        .page-hero { padding:60px 0 42px; }
        .hero-stage { min-height:350px; }
        .hero-stage img { height:350px; }
        .metrics { grid-template-columns:repeat(2,1fr); }
        .metric:nth-child(2) { border-right:0; }
        .metric { padding:8px 14px; }
        .section { padding:66px 0; }
        .section-heading { display:block;margin-bottom:25px; }
        .section-heading p { margin-top:14px; }
        .timeline { grid-template-columns:1fr 1fr;gap:28px 0; }
        .timeline-step:nth-child(2):after { display:none; }
        .faq-list { grid-template-columns:1fr; }
        .cta-content { display:block; }
        .cta-content .button-primary { margin-top:23px; }
        .footer-top { grid-template-columns:1fr 1fr;gap:28px; }
        .footer-brand { grid-column:1/-1; }
    }
    @media (max-width:520px) {
        h1 { font-size:43px; }
        .brand-name { font-size:15px; }
        .nav-action { display:none; }
        .hero-actions a { width:100%; }
        .hero-stage { min-height:315px;border-radius:23px; }
        .hero-stage img { height:315px; }
        .signal-card { left:15px;right:15px;bottom:15px;padding:15px; }
        .service-cards,.security-points,.quick-panel { grid-template-columns:1fr; }
        .compare-row { grid-template-columns:1fr 1fr;padding:14px 17px; }
        .compare-row.header { grid-template-columns:1fr 1fr; }
        .compare-row span:last-child,.compare-row.header span:last-child { display:none; }
        .timeline { grid-template-columns:1fr; }
        .timeline-step:after { display:none!important; }
        .news-feature { min-height:260px;padding:23px; }
        .cta-box { padding:30px 23px; }
        .footer-top { grid-template-columns:1fr; }
        .footer-bottom { flex-direction:column; }
    }

/* roulang page: category3 */
:root{
 --bg:#080b14;--bg-soft:#0d1220;--panel:#11182a;--panel-light:#151f35;
 --primary:#5b67f1;--primary-light:#818cf8;--cyan:#35d4f4;--green:#62e6b4;
 --text:#f7f8ff;--muted:#98a4bd;--muted-2:#6f7b96;
 --border:rgba(151,163,194,.16);--border-strong:rgba(129,140,248,.38);
 --radius-lg:28px;--radius-md:18px;--shadow:0 24px 70px rgba(0,0,0,.28);--container:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(circle at 78% 5%,rgba(91,103,241,.17),transparent 28rem),radial-gradient(circle at 10% 38%,rgba(53,212,244,.07),transparent 25rem),var(--bg);color:var(--text);font-family:"Noto Sans SC","Inter",sans-serif;line-height:1.75;overflow-x:hidden}
body,button,input,textarea{font-family:inherit}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{outline:none}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(53,212,244,.55);outline-offset:3px}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:30;background:rgba(8,11,20,.82);backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.07)}
.nav-shell{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:inline-flex;align-items:center;gap:12px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
.brand-mark{width:38px;height:38px;border-radius:13px;display:grid;place-items:center;color:#fff;background:linear-gradient(145deg,var(--primary-light),var(--primary));box-shadow:0 8px 24px rgba(91,103,241,.35);font-size:18px}
.brand-name{font-size:17px}.main-nav{display:flex;align-items:center;gap:7px}
.main-nav a{color:var(--muted);padding:9px 14px;border-radius:10px;font-size:14px;transition:.25s ease}
.main-nav a:hover,.main-nav a.active{color:var(--text);background:rgba(129,140,248,.12)}
.nav-action,.button-primary{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 19px;border-radius:12px;border:1px solid transparent;background:var(--primary);color:#fff;font-weight:700;font-size:14px;box-shadow:0 12px 28px rgba(91,103,241,.25);transition:.25s ease}
.nav-action:hover,.button-primary:hover{color:#fff;transform:translateY(-2px);background:#6974ff;box-shadow:0 16px 35px rgba(91,103,241,.38)}
.button-secondary{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 19px;border-radius:12px;border:1px solid var(--border-strong);color:var(--text);background:rgba(255,255,255,.035);font-weight:700;font-size:14px;transition:.25s ease}
.button-secondary:hover{color:var(--text);background:rgba(129,140,248,.13);transform:translateY(-2px)}
.nav-toggle{display:none;color:var(--text);background:none;border:0;font-size:22px}
.hero{padding:92px 0 76px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;align-items:center;gap:72px}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:#aeb8ff;font-size:12px;letter-spacing:.13em;text-transform:uppercase;font-weight:800}
.eyebrow:before,.section-kicker:before{content:"";width:25px;height:2px;background:var(--cyan);box-shadow:0 0 14px var(--cyan)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(42px,6vw,74px);line-height:1.08;letter-spacing:-.065em;margin:18px 0 23px;max-width:720px}
h2{font-size:clamp(29px,4vw,46px);line-height:1.18;letter-spacing:-.05em;margin:12px 0 16px}
h3{line-height:1.35}
.hero-copy{max-width:650px;color:var(--muted);font-size:17px;line-height:1.9;margin-bottom:31px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.hero-note{display:flex;align-items:center;gap:10px;color:var(--muted-2);font-size:13px;margin-top:23px}.hero-note i{color:#67e8f9}
.hero-panel{position:relative;border:1px solid var(--border);border-radius:34px;background:linear-gradient(145deg,rgba(21,31,53,.98),rgba(12,17,30,.98));box-shadow:var(--shadow);padding:28px;overflow:hidden}
.hero-panel:before{content:"";position:absolute;width:230px;height:230px;border-radius:50%;right:-80px;top:-90px;background:rgba(91,103,241,.22);filter:blur(5px)}
.panel-top{display:flex;justify-content:space-between;align-items:center;position:relative;z-index:1;margin-bottom:28px}.panel-title{font-size:14px;font-weight:700}.live-dot{display:flex;align-items:center;gap:7px;color:var(--green);font-size:12px}.live-dot:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 12px var(--green)}
.progress-wrap{display:grid;grid-template-columns:155px 1fr;gap:25px;align-items:center;position:relative;z-index:1}
.progress-ring{width:148px;height:148px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--cyan) 0 78%,rgba(255,255,255,.09) 78% 100%);position:relative}
.progress-ring:after{content:"";position:absolute;inset:12px;border-radius:50%;background:var(--panel)}
.progress-value{position:relative;z-index:1;text-align:center}.progress-value strong{display:block;font-size:30px;line-height:1.1}.progress-value span{font-size:11px;color:var(--muted)}
.signal-list{display:grid;gap:13px}.signal-line{display:flex;justify-content:space-between;gap:15px;font-size:13px;color:var(--muted);border-bottom:1px solid var(--border);padding-bottom:10px}.signal-line b{color:var(--text);font-weight:700}.signal-line .good{color:var(--green)}
.tier-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:26px;position:relative;z-index:1}.tier{padding:15px 13px;background:rgba(255,255,255,.045);border:1px solid var(--border);border-radius:14px}.tier strong{display:block;font-size:15px}.tier span{font-size:11px;color:var(--muted)}
.section{padding:94px 0}.section.alt{background:linear-gradient(180deg,rgba(255,255,255,.018),transparent);border-top:1px solid rgba(255,255,255,.04);border-bottom:1px solid rgba(255,255,255,.04)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:35px}.section-head p{color:var(--muted);max-width:540px;margin:0}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.metric{padding:25px 22px;border:1px solid var(--border);border-radius:var(--radius-md);background:rgba(17,24,42,.7);transition:.25s}.metric:hover{transform:translateY(-4px);border-color:var(--border-strong);background:var(--panel-light)}.metric i{color:var(--cyan);font-size:19px}.metric strong{display:block;font-size:29px;letter-spacing:-.05em;margin:11px 0 3px}.metric span{font-size:13px;color:var(--muted)}
.matrix{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}.line-card,.compare-card,.timeline-card,.article-list,.support-card,.faq-box,.contact-card{border:1px solid var(--border);background:rgba(17,24,42,.76);border-radius:var(--radius-lg);box-shadow:0 14px 40px rgba(0,0,0,.12)}
.line-card{padding:26px}.line-card h3{margin-bottom:20px}.line-table{width:100%;border-collapse:collapse;font-size:13px}.line-table th{text-align:left;color:var(--muted-2);font-weight:500;padding:0 8px 13px}.line-table td{padding:15px 8px;border-top:1px solid var(--border);color:var(--muted)}.line-table td:first-child{color:var(--text);font-weight:700}.status{display:inline-flex;align-items:center;gap:6px;color:var(--green)}.status:before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.compare-card{padding:28px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(145deg,rgba(91,103,241,.18),rgba(17,24,42,.85))}
.compare-card h3{font-size:25px;max-width:330px}.compare-card p{color:var(--muted);font-size:14px}.compare-bars{display:grid;gap:18px;margin-top:20px}.bar-label{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-bottom:7px}.bar{height:8px;border-radius:20px;background:rgba(255,255,255,.08);overflow:hidden}.bar i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--primary),var(--cyan))}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.feature-card{padding:28px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--panel);transition:.25s}.feature-card:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:var(--shadow)}.icon-box{width:45px;height:45px;border-radius:14px;display:grid;place-items:center;color:#cbd0ff;background:rgba(91,103,241,.16);font-size:18px;margin-bottom:23px}.feature-card h3{font-size:19px;margin-bottom:10px}.feature-card p{color:var(--muted);font-size:14px;margin-bottom:0}
.milestone{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:stretch}.timeline-card{padding:30px}.timeline-item{display:grid;grid-template-columns:35px 1fr;gap:17px;position:relative;padding-bottom:25px}.timeline-item:not(:last-child):after{content:"";position:absolute;left:16px;top:32px;bottom:0;width:1px;background:var(--border-strong)}.timeline-point{width:33px;height:33px;border-radius:50%;display:grid;place-items:center;background:rgba(91,103,241,.18);color:var(--cyan);border:1px solid var(--border-strong);z-index:1}.timeline-item h3{font-size:16px;margin:3px 0 4px}.timeline-item p{color:var(--muted);font-size:13px;margin:0}.visual-card{min-height:330px;border-radius:var(--radius-lg);overflow:hidden;position:relative;border:1px solid var(--border);box-shadow:var(--shadow)}.visual-card img{width:100%;height:100%;object-fit:cover;opacity:.5}.visual-card:after{content:"";position:absolute;inset:0;background:linear-gradient(145deg,rgba(8,11,20,.18),rgba(8,11,20,.9))}.visual-caption{position:absolute;z-index:1;left:27px;right:27px;bottom:26px}.visual-caption strong{display:block;font-size:24px;margin-bottom:5px}.visual-caption span{color:#c3cbe0;font-size:13px}
.article-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.article-list{padding:12px 25px}.article{display:grid;grid-template-columns:1fr auto;gap:15px;align-items:center;padding:21px 0;border-bottom:1px solid var(--border)}.article:last-child{border-bottom:0}.article h3{font-size:16px;margin:0 0 5px}.article p{font-size:13px;color:var(--muted);margin:0}.article time{font-size:12px;color:var(--muted-2)}.support-card{padding:28px;background:linear-gradient(155deg,rgba(53,212,244,.12),rgba(17,24,42,.8))}.support-card h3{font-size:22px}.support-card p{font-size:14px;color:var(--muted)}.support-list{display:grid;gap:13px;margin:22px 0 0}.support-list div{display:flex;gap:10px;align-items:flex-start;color:#d9def0;font-size:13px}.support-list i{color:var(--green);margin-top:5px}
.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px}.faq-intro p{color:var(--muted);font-size:15px}.faq-box{overflow:hidden}.faq-item{border-bottom:1px solid var(--border)}.faq-item:last-child{border-bottom:0}.faq-question{width:100%;display:flex;justify-content:space-between;gap:20px;text-align:left;background:none;border:0;color:var(--text);padding:20px 24px;font-size:15px;font-weight:700;cursor:pointer}.faq-question i{color:var(--cyan);transition:.25s}.faq-answer{display:none;color:var(--muted);font-size:13px;padding:0 24px 20px}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question i{transform:rotate(45deg)}
.cta-section{padding:78px 0}.contact-card{padding:42px;display:flex;justify-content:space-between;gap:30px;align-items:center;background:linear-gradient(110deg,rgba(91,103,241,.25),rgba(17,24,42,.8))}.contact-card h2{font-size:35px;margin-bottom:10px}.contact-card p{color:#c0c8dc;margin:0;max-width:620px}.contact-card .hero-actions{flex-shrink:0}
.site-footer{padding:62px 0 25px;border-top:1px solid rgba(255,255,255,.07);background:#070a12}.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px}.footer-brand p{max-width:310px;color:var(--muted);font-size:13px;margin-top:18px}.footer-col{display:grid;align-content:start;gap:10px}.footer-col h3{font-size:14px;margin:5px 0 8px}.footer-col a{font-size:13px;color:var(--muted);transition:.2s}.footer-col a:hover{color:var(--cyan)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--border);padding-top:22px;margin-top:45px;color:var(--muted-2);font-size:12px}
@media(max-width:1024px){.hero-grid{gap:35px}.main-nav a{padding:9px 9px}.matrix,.milestone,.article-layout{grid-template-columns:1fr}.footer-top{grid-template-columns:1.4fr 1fr 1fr 1fr}}
@media(max-width:768px){.container{width:min(var(--container),calc(100% - 32px))}.nav-shell{min-height:70px}.nav-toggle{display:block}.main-nav{display:none;position:absolute;top:70px;left:16px;right:16px;padding:10px;background:rgba(13,18,32,.98);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.main-nav a{padding:12px 14px}.nav-action{display:none}.hero{padding:65px 0 55px}.hero-grid{grid-template-columns:1fr}.hero-panel{max-width:650px}.metrics{grid-template-columns:repeat(2,1fr)}.feature-grid{grid-template-columns:1fr 1fr}.section{padding:70px 0}.section-head{display:block}.section-head p{margin-top:15px}.faq-grid{grid-template-columns:1fr}.footer-top{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.contact-card{display:block;padding:30px}.contact-card .hero-actions{margin-top:25px}}
@media(max-width:520px){h1{font-size:42px}.hero-copy{font-size:15px}.progress-wrap{grid-template-columns:1fr;text-align:center}.progress-ring{margin:0 auto}.tier-row{grid-template-columns:1fr}.metrics,.feature-grid{grid-template-columns:1fr}.section-head{margin-bottom:25px}.line-card{padding:17px;overflow-x:auto}.line-table{min-width:500px}.article{grid-template-columns:1fr}.article time{display:block}.footer-top{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}}

/* roulang page: category4 */
:root {
      --bg: #080b14;
      --bg-soft: #0d1220;
      --panel: #11182a;
      --panel-light: #151f35;
      --primary: #5b67f1;
      --primary-light: #818cf8;
      --cyan: #35d4f4;
      --text: #f7f8ff;
      --muted: #98a4bd;
      --muted-2: #6f7b96;
      --border: rgba(151,163,194,.16);
      --border-strong: rgba(129,140,248,.38);
      --radius-lg: 28px;
      --radius-md: 18px;
      --shadow: 0 24px 70px rgba(0,0,0,.28);
      --container: 1180px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      background:
        radial-gradient(circle at 78% 4%, rgba(91,103,241,.16), transparent 28rem),
        radial-gradient(circle at 5% 42%, rgba(53,212,244,.06), transparent 24rem),
        var(--bg);
      color: var(--text);
      font-family: "Noto Sans SC","Inter",sans-serif;
      line-height: 1.75;
      overflow-x: hidden;
    }
    body, button, input, textarea { font-family: inherit; }
    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; display: block; }
    button, input, textarea { outline: none; }
    button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible {
      outline: 3px solid rgba(53,212,244,.55);
      outline-offset: 3px;
    }
    .container {
      width: min(var(--container), calc(100% - 48px));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 30;
      background: rgba(8,11,20,.82);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(255,255,255,.07);
    }
    .nav-shell {
      min-height: 78px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
    }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      letter-spacing: -.04em;
      white-space: nowrap;
    }
    .brand-mark {
      width: 38px;
      height: 38px;
      border-radius: 13px;
      display: grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(145deg,var(--primary-light),var(--primary));
      box-shadow: 0 8px 24px rgba(91,103,241,.35);
      font-size: 18px;
    }
    .brand-name { font-size: 17px; }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 7px;
    }
    .main-nav a {
      color: var(--muted);
      padding: 9px 14px;
      border-radius: 10px;
      font-size: 14px;
      transition: .25s ease;
    }
    .main-nav a:hover,
    .main-nav a.active {
      color: var(--text);
      background: rgba(129,140,248,.12);
    }
    .nav-action,
    .button-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 0 19px;
      border-radius: 12px;
      border: 1px solid transparent;
      background: var(--primary);
      color: #fff;
      font-weight: 700;
      font-size: 14px;
      box-shadow: 0 12px 28px rgba(91,103,241,.25);
      transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
    }
    .nav-action:hover,
    .button-primary:hover {
      color: #fff;
      transform: translateY(-2px);
      background: #6974ff;
      box-shadow: 0 16px 35px rgba(91,103,241,.38);
    }
    .button-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 0 19px;
      border-radius: 12px;
      border: 1px solid var(--border-strong);
      color: var(--text);
      background: rgba(255,255,255,.035);
      font-weight: 700;
      font-size: 14px;
      transition: .25s ease;
    }
    .button-secondary:hover {
      color: var(--text);
      background: rgba(129,140,248,.13);
      transform: translateY(-2px);
    }
    .nav-toggle {
      display: none;
      color: var(--text);
      background: none;
      border: 0;
      font-size: 22px;
    }

    .page-hero {
      position: relative;
      padding: 86px 0 82px;
      overflow: hidden;
      border-bottom: 1px solid rgba(255,255,255,.06);
    }
    .page-hero::before {
      content: "";
      position: absolute;
      width: 620px;
      height: 620px;
      right: -250px;
      top: -260px;
      border: 1px solid rgba(129,140,248,.18);
      border-radius: 50%;
      box-shadow: 0 0 0 34px rgba(129,140,248,.035), 0 0 0 70px rgba(129,140,248,.025);
    }
    .hero-layout {
      position: relative;
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 74px;
      align-items: center;
    }
    .eyebrow,
    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: #aeb8ff;
      font-size: 12px;
      letter-spacing: .13em;
      text-transform: uppercase;
      font-weight: 800;
    }
    .eyebrow::before,
    .section-kicker::before {
      content: "";
      width: 25px;
      height: 2px;
      background: var(--cyan);
      box-shadow: 0 0 14px var(--cyan);
    }
    h1, h2, h3, p { margin-top: 0; }
    h1 {
      max-width: 720px;
      margin: 20px 0 24px;
      font-size: clamp(42px, 5.5vw, 76px);
      line-height: 1.12;
      letter-spacing: -.065em;
      font-weight: 800;
    }
    .hero-description {
      max-width: 650px;
      color: var(--muted);
      font-size: 17px;
      line-height: 1.9;
      margin-bottom: 30px;
    }
    .hero-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }
    .hero-note {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--muted-2);
      font-size: 13px;
      margin-top: 22px;
    }
    .hero-note i { color: #67e8f9; }
    .hero-visual {
      min-height: 390px;
      position: relative;
      border: 1px solid var(--border);
      border-radius: 34px;
      overflow: hidden;
      background: #121a2b;
      box-shadow: var(--shadow);
      transform: rotate(1.5deg);
    }
    .hero-visual img {
      width: 100%;
      height: 390px;
      object-fit: cover;
      opacity: .42;
    }
    .hero-visual::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg,rgba(13,18,32,.94),rgba(13,18,32,.26),rgba(91,103,241,.28));
    }
    .hero-panel {
      position: absolute;
      z-index: 2;
      left: 27px;
      right: 27px;
      bottom: 26px;
      padding: 22px;
      border: 1px solid rgba(255,255,255,.14);
      border-radius: 20px;
      background: rgba(10,14,27,.72);
      backdrop-filter: blur(15px);
      transform: rotate(-1.5deg);
    }
    .hero-panel-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      margin-bottom: 18px;
    }
    .panel-title { font-size: 15px; font-weight: 700; }
    .online-dot {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      color: #9af2d0;
      font-size: 12px;
    }
    .online-dot::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: #4ade80;
      box-shadow: 0 0 13px #4ade80;
    }
    .latency-line {
      height: 8px;
      overflow: hidden;
      border-radius: 999px;
      background: rgba(255,255,255,.1);
    }
    .latency-line span {
      display: block;
      width: 78%;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg,var(--cyan),var(--primary-light));
    }
    .panel-meta {
      display: flex;
      justify-content: space-between;
      color: var(--muted);
      font-size: 12px;
      margin-top: 11px;
    }

    main { overflow: hidden; }
    .section {
      padding: 92px 0;
      border-bottom: 1px solid rgba(255,255,255,.055);
    }
    .section-soft {
      background: linear-gradient(180deg,rgba(255,255,255,.018),transparent);
    }
    .section-heading {
      max-width: 700px;
      margin-bottom: 42px;
    }
    .section-heading h2 {
      margin: 15px 0 14px;
      font-size: clamp(30px,4vw,48px);
      line-height: 1.2;
      letter-spacing: -.05em;
    }
    .section-heading p {
      color: var(--muted);
      font-size: 16px;
      margin-bottom: 0;
    }

    .metric-strip {
      display: grid;
      grid-template-columns: repeat(4,1fr);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: rgba(17,24,42,.72);
      box-shadow: var(--shadow);
    }
    .metric {
      min-height: 156px;
      padding: 28px 25px;
      border-right: 1px solid var(--border);
    }
    .metric:last-child { border-right: 0; }
    .metric-value {
      display: block;
      color: var(--text);
      font-size: 34px;
      line-height: 1.1;
      font-weight: 800;
      letter-spacing: -.05em;
      margin-bottom: 9px;
    }
    .metric-label { color: var(--muted); font-size: 13px; }
    .metric i { color: var(--cyan); margin-right: 7px; }

    .guide-layout {
      display: grid;
      grid-template-columns: .8fr 1.2fr;
      gap: 30px;
      align-items: stretch;
    }
    .guide-intro {
      padding: 32px;
      border-radius: var(--radius-lg);
      background: linear-gradient(145deg,#151e38,#0e1526);
      border: 1px solid var(--border-strong);
      position: relative;
      overflow: hidden;
    }
    .guide-intro::after {
      content: "01";
      position: absolute;
      right: 23px;
      bottom: 5px;
      color: rgba(129,140,248,.12);
      font-size: 110px;
      font-weight: 800;
      line-height: 1;
    }
    .guide-intro h3 {
      position: relative;
      z-index: 1;
      font-size: 28px;
      letter-spacing: -.04em;
      margin: 18px 0 14px;
    }
    .guide-intro p {
      position: relative;
      z-index: 1;
      color: var(--muted);
      margin-bottom: 0;
    }
    .guide-list {
      display: grid;
      grid-template-columns: repeat(2,1fr);
      gap: 14px;
    }
    .guide-item {
      display: flex;
      gap: 15px;
      padding: 23px;
      border: 1px solid var(--border);
      background: rgba(17,24,42,.72);
      border-radius: var(--radius-md);
      transition: .25s ease;
    }
    .guide-item:hover {
      transform: translateY(-4px);
      border-color: var(--border-strong);
      box-shadow: 0 15px 35px rgba(0,0,0,.18);
    }
    .guide-icon {
      flex: 0 0 40px;
      width: 40px;
      height: 40px;
      display: grid;
      place-items: center;
      border-radius: 13px;
      color: var(--cyan);
      background: rgba(53,212,244,.1);
      border: 1px solid rgba(53,212,244,.2);
    }
    .guide-item h4 {
      font-size: 16px;
      margin: 0 0 5px;
    }
    .guide-item p {
      color: var(--muted);
      font-size: 13px;
      line-height: 1.7;
      margin-bottom: 0;
    }

    .route-board {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
    }
    .route-card {
      padding: 28px;
      border-radius: var(--radius-md);
      background: var(--panel);
      border: 1px solid var(--border);
      transition: .25s ease;
    }
    .route-card:hover {
      border-color: var(--border-strong);
      background: var(--panel-light);
      transform: translateY(-4px);
    }
    .route-card.featured {
      background: linear-gradient(145deg,rgba(91,103,241,.23),rgba(17,24,42,.92));
      border-color: rgba(129,140,248,.42);
    }
    .route-top {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 22px;
    }
    .route-top h3 { font-size: 20px; margin-bottom: 5px; }
    .route-top p { color: var(--muted); font-size: 13px; margin-bottom: 0; }
    .route-tag {
      align-self: flex-start;
      padding: 5px 9px;
      border-radius: 999px;
      color: #b9f6ff;
      background: rgba(53,212,244,.1);
      border: 1px solid rgba(53,212,244,.2);
      font-size: 11px;
      white-space: nowrap;
    }
    .route-stats {
      display: flex;
      gap: 24px;
      padding-top: 20px;
      border-top: 1px solid var(--border);
    }
    .route-stats strong {
      display: block;
      font-size: 22px;
      line-height: 1;
      margin-bottom: 7px;
    }
    .route-stats span { color: var(--muted-2); font-size: 12px; }

    .compare-wrap {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 28px;
      align-items: center;
    }
    .compare-table {
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: rgba(17,24,42,.72);
    }
    .compare-row {
      display: grid;
      grid-template-columns: 1.25fr 1fr 1fr;
      border-bottom: 1px solid var(--border);
    }
    .compare-row:last-child { border-bottom: 0; }
    .compare-row > div {
      padding: 19px 20px;
      color: var(--muted);
      font-size: 13px;
      border-right: 1px solid var(--border);
    }
    .compare-row > div:last-child { border-right: 0; }
    .compare-row.head > div {
      color: var(--text);
      background: rgba(129,140,248,.09);
      font-weight: 700;
    }
    .compare-row:not(.head) > div:first-child { color: var(--text); font-weight: 600; }
    .compare-row i { color: #65e6bc; margin-right: 6px; }
    .compare-note {
      padding: 31px;
      border-radius: var(--radius-lg);
      background: linear-gradient(145deg,#101a31,#0b101e);
      border: 1px solid var(--border);
    }
    .compare-note i {
      color: var(--cyan);
      font-size: 28px;
      margin-bottom: 22px;
    }
    .compare-note h3 { font-size: 25px; line-height: 1.35; margin-bottom: 13px; }
    .compare-note p { color: var(--muted); margin-bottom: 0; }

    .timeline {
      position: relative;
      display: grid;
      grid-template-columns: repeat(4,1fr);
      gap: 18px;
    }
    .timeline::before {
      content: "";
      position: absolute;
      top: 22px;
      left: 7%;
      right: 7%;
      height: 1px;
      background: linear-gradient(90deg,var(--primary),var(--cyan),var(--primary));
      opacity: .45;
    }
    .timeline-item { position: relative; z-index: 1; }
    .timeline-point {
      width: 44px;
      height: 44px;
      display: grid;
      place-items: center;
      margin-bottom: 20px;
      border-radius: 50%;
      color: #fff;
      background: var(--primary);
      border: 6px solid var(--bg);
      box-shadow: 0 0 0 1px rgba(129,140,248,.5),0 0 22px rgba(91,103,241,.36);
      font-weight: 800;
    }
    .timeline-item h3 { font-size: 17px; margin-bottom: 8px; }
    .timeline-item p { color: var(--muted); font-size: 13px; margin-bottom: 0; padding-right: 18px; }

    .news-layout {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 28px;
    }
    .feature-news {
      min-height: 300px;
      display: flex;
      align-items: flex-end;
      padding: 28px;
      border-radius: var(--radius-lg);
      overflow: hidden;
      position: relative;
      background:
        linear-gradient(180deg,transparent 20%,rgba(5,8,17,.94) 100%),
        url("https://images.unsplash.com/photo-1593305841991-05c297ba4575?auto=format&fit=crop&w=1000&q=85") center/cover;
      border: 1px solid var(--border);
    }
    .feature-news-content { position: relative; z-index: 1; }
    .feature-news h3 { font-size: 26px; line-height: 1.35; margin-bottom: 9px; }
    .feature-news p { color: #c5cee2; font-size: 13px; margin-bottom: 0; }
    .news-list {
      display: grid;
      gap: 12px;
    }
    .news-item {
      display: grid;
      grid-template-columns: 48px 1fr auto;
      align-items: center;
      gap: 14px;
      padding: 17px;
      border: 1px solid var(--border);
      border-radius: 16px;
      background: rgba(17,24,42,.68);
      transition: .25s ease;
    }
    .news-item:hover {
      border-color: var(--border-strong);
      transform: translateX(4px);
    }
    .news-number {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 13px;
      color: #b9c0ff;
      background: rgba(91,103,241,.13);
      font-weight: 800;
    }
    .news-item h4 { font-size: 14px; margin: 0 0 4px; }
    .news-item p { color: var(--muted); font-size: 12px; margin: 0; }
    .news-item i { color: var(--muted-2); font-size: 13px; }

    .security-grid {
      display: grid;
      grid-template-columns: repeat(3,1fr);
      gap: 16px;
    }
    .security-card {
      padding: 27px;
      border-radius: var(--radius-md);
      background: rgba(17,24,42,.72);
      border: 1px solid var(--border);
    }
    .security-card i {
      color: var(--cyan);
      font-size: 23px;
      margin-bottom: 18px;
    }
    .security-card h3 { font-size: 18px; margin-bottom: 9px; }
    .security-card p { color: var(--muted); font-size: 13px; margin-bottom: 0; }

    .faq-list {
      max-width: 900px;
      display: grid;
      gap: 12px;
    }
    .faq-item {
      border: 1px solid var(--border);
      border-radius: 16px;
      background: rgba(17,24,42,.68);
      overflow: hidden;
    }
    .faq-item summary {
      cursor: pointer;
      list-style: none;
      padding: 20px 23px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
      font-weight: 700;
    }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after {
      content: "+";
      color: var(--cyan);
      font-size: 23px;
      font-weight: 400;
      transition: .25s ease;
    }
    .faq-item[open] summary::after { transform: rotate(45deg); }
    .faq-answer {
      padding: 0 23px 21px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.85;
    }

    .cta-section { padding: 74px 0; }
    .cta-box {
      position: relative;
      overflow: hidden;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 30px;
      padding: 45px 50px;
      border-radius: var(--radius-lg);
      background:
        radial-gradient(circle at 86% 20%,rgba(53,212,244,.2),transparent 18rem),
        linear-gradient(135deg,#222b75,#10172f);
      border: 1px solid rgba(129,140,248,.42);
      box-shadow: var(--shadow);
    }
    .cta-box::after {
      content: "";
      position: absolute;
      width: 240px;
      height: 240px;
      right: 20%;
      bottom: -170px;
      border: 1px solid rgba(255,255,255,.13);
      border-radius: 50%;
    }
    .cta-box h2 {
      position: relative;
      z-index: 1;
      font-size: clamp(27px,3.5vw,42px);
      line-height: 1.25;
      margin-bottom: 10px;
      letter-spacing: -.05em;
    }
    .cta-box p {
      position: relative;
      z-index: 1;
      color: #c9d1ff;
      margin-bottom: 0;
    }
    .cta-box .button-primary {
      position: relative;
      z-index: 2;
      flex: 0 0 auto;
      background: #fff;
      color: #293273;
      box-shadow: 0 12px 30px rgba(0,0,0,.2);
    }
    .cta-box .button-primary:hover { background: #e9ecff; color: #293273; }

    .site-footer {
      padding: 65px 0 24px;
      background: #070a12;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.7fr repeat(3,1fr);
      gap: 40px;
      padding-bottom: 48px;
      border-bottom: 1px solid var(--border);
    }
    .footer-brand p {
      max-width: 330px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.8;
      margin: 17px 0 0;
    }
    .footer-col {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-col h3 { font-size: 14px; margin-bottom: 8px; }
    .footer-col a { color: var(--muted); font-size: 13px; transition: .2s ease; }
    .footer-col a:hover { color: var(--cyan); transform: translateX(2px); }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      padding-top: 22px;
      color: var(--muted-2);
      font-size: 12px;
    }

    @media (max-width: 1024px) {
      .hero-layout, .compare-wrap, .news-layout { gap: 35px; }
      .hero-layout { grid-template-columns: 1fr .9fr; }
      .footer-top { grid-template-columns: 1.4fr repeat(3,1fr); gap: 22px; }
    }
    @media (max-width: 768px) {
      .container { width: min(var(--container), calc(100% - 34px)); }
      .nav-shell { min-height: 70px; }
      .nav-toggle { display: block; }
      .main-nav {
        display: none;
        position: absolute;
        left: 17px;
        right: 17px;
        top: 76px;
        padding: 12px;
        flex-direction: column;
        align-items: stretch;
        border: 1px solid var(--border);
        border-radius: 18px;
        background: rgba(13,18,32,.97);
        box-shadow: var(--shadow);
      }
      .main-nav.is-open { display: flex; }
      .main-nav a { padding: 12px 14px; }
      .nav-action { display: none; }
      .page-hero { padding: 64px 0 60px; }
      .hero-layout, .guide-layout, .compare-wrap, .news-layout { grid-template-columns: 1fr; }
      .hero-visual { max-width: 620px; width: 100%; transform: none; }
      .hero-panel { transform: none; }
      .metric-strip { grid-template-columns: repeat(2,1fr); }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
      .guide-list, .route-board { grid-template-columns: 1fr; }
      .timeline { grid-template-columns: repeat(2,1fr); gap: 30px 18px; }
      .timeline::before { display: none; }
      .security-grid { grid-template-columns: 1fr; }
      .cta-box { align-items: flex-start; flex-direction: column; padding: 34px 28px; }
      .footer-top { grid-template-columns: 1fr 1fr; }
      .footer-brand { grid-column: 1 / -1; }
    }
    @media (max-width: 520px) {
      h1 { font-size: 42px; }
      .section { padding: 68px 0; }
      .hero-description { font-size: 15px; }
      .hero-actions { flex-direction: column; align-items: stretch; }
      .hero-actions a { width: 100%; }
      .metric-value { font-size: 27px; }
      .metric { padding: 22px 16px; min-height: 135px; }
      .compare-row > div { padding: 15px 11px; font-size: 11px; }
      .compare-row { grid-template-columns: 1.15fr 1fr 1fr; }
      .timeline { grid-template-columns: 1fr; }
      .news-item { grid-template-columns: 40px 1fr; }
      .news-item > i { display: none; }
      .footer-top { grid-template-columns: 1fr; gap: 28px; }
      .footer-brand { grid-column: auto; }
      .footer-bottom { flex-direction: column; gap: 8px; }
    }