/* roulang page: index */
:root {
            --ink: #132238;
            --muted: #68768a;
            --blue: #2368df;
            --blue-deep: #1744a6;
            --cyan: #25b9c9;
            --paper: #f5f8fc;
            --white: #ffffff;
            --line: #dce5f0;
            --soft-blue: #eaf2ff;
            --soft-cyan: #e8fbfa;
            --radius: 18px;
            --shadow: 0 16px 45px rgba(26, 63, 112, .10);
            --shadow-hover: 0 22px 55px rgba(26, 63, 112, .17);
        }

        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            color: var(--ink);
            background: var(--paper);
            font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        a { color: inherit; text-decoration: none; }
        img { display: block; width: 100%; object-fit: cover; }
        button, input { font: inherit; }
        button:focus-visible, a:focus-visible, input:focus-visible {
            outline: 3px solid rgba(37, 185, 201, .42);
            outline-offset: 3px;
        }
        .container { max-width: 1180px; }
        .topbar {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,.94);
            border-bottom: 1px solid rgba(220,229,240,.85);
            backdrop-filter: blur(16px);
        }
        .navbar { min-height: 78px; }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            color: var(--ink);
            font-weight: 800;
            letter-spacing: 0;
            white-space: nowrap;
        }
        .brand-mark {
            display: grid;
            place-items: center;
            width: 40px;
            height: 40px;
            color: #fff;
            background: var(--blue);
            border-radius: 12px;
            box-shadow: 0 8px 18px rgba(35,104,223,.25);
            font-size: 18px;
        }
        .brand-name { font-size: 16px; }
        .navbar-nav { gap: 6px; }
        .nav-link {
            color: #617087 !important;
            padding: 10px 13px !important;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            transition: .2s ease;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--blue) !important;
            background: var(--soft-blue);
        }
        .nav-action {
            color: #fff !important;
            background: var(--blue);
            border-radius: 10px;
            padding: 10px 16px !important;
            margin-left: 10px;
        }
        .nav-action:hover { background: var(--blue-deep); }
        .navbar-toggler { border: 0; padding: 8px; }
        .navbar-toggler:focus { box-shadow: none; }

        .hero {
            position: relative;
            overflow: hidden;
            padding: 74px 0 62px;
            background: #edf5ff;
        }
        .hero:before {
            content: "";
            position: absolute;
            inset: 0 0 auto auto;
            width: 48%;
            height: 100%;
            background: linear-gradient(135deg, rgba(35,104,223,.08), rgba(37,185,201,.18));
            clip-path: polygon(24% 0,100% 0,100% 100%,0 100%);
        }
        .hero-grid { position: relative; z-index: 1; }
        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--blue);
            font-size: 13px;
            font-weight: 800;
            letter-spacing: .08em;
        }
        .eyebrow:before {
            content: "";
            width: 25px;
            height: 3px;
            border-radius: 4px;
            background: var(--cyan);
        }
        h1, h2, h3, h4 { line-height: 1.3; font-weight: 800; }
        h1 {
            max-width: 620px;
            margin: 18px 0 17px;
            font-size: clamp(2.35rem, 5vw, 4.35rem);
            letter-spacing: 0;
        }
        .highlight { color: var(--blue); }
        .hero-copy {
            max-width: 650px;
            color: #586a80;
            font-size: 17px;
            line-height: 1.9;
            margin-bottom: 28px;
        }
        .hero-buttons { display: flex; flex-wrap: wrap; gap: 12px; }
        .btn-main, .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 48px;
            padding: 0 21px;
            border-radius: 11px;
            font-size: 14px;
            font-weight: 700;
            transition: .2s ease;
        }
        .btn-main { color: #fff; background: var(--blue); box-shadow: 0 9px 20px rgba(35,104,223,.2); }
        .btn-main:hover { color: #fff; background: var(--blue-deep); transform: translateY(-2px); }
        .btn-ghost { color: var(--blue); background: #fff; border: 1px solid #c9d9ef; }
        .btn-ghost:hover { color: var(--blue-deep); border-color: var(--blue); background: var(--soft-blue); }
        .bento { display: grid; grid-template-columns: 1.25fr .75fr; gap: 14px; margin-top: 12px; }
        .bento-main {
            min-height: 310px;
            position: relative;
            overflow: hidden;
            border-radius: 22px;
            box-shadow: var(--shadow);
            background: #16345e;
        }
        .bento-main img { height: 100%; opacity: .76; }
        .bento-main:after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(8,27,55,.86), transparent 70%);
        }
        .bento-caption { position: absolute; z-index: 1; left: 24px; right: 24px; bottom: 20px; color: #fff; }
        .bento-caption h3 { margin: 8px 0 5px; font-size: 23px; }
        .bento-caption p { margin: 0; color: rgba(255,255,255,.76); font-size: 13px; }
        .bento-side { display: grid; gap: 14px; }
        .mini-panel {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-height: 148px;
            padding: 21px;
            border: 1px solid #dce7f4;
            border-radius: 18px;
            background: #fff;
            box-shadow: 0 10px 25px rgba(38,75,121,.07);
        }
        .mini-icon { color: var(--blue); font-size: 25px; }
        .mini-panel strong { display: block; margin-top: 12px; font-size: 19px; }
        .mini-panel span { color: var(--muted); font-size: 13px; }
        .hero-strip {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-top: 14px;
            padding: 15px 20px;
            border-radius: 14px;
            color: #17447f;
            background: #fff;
            border: 1px solid #dbe6f3;
        }
        .hero-strip p { margin: 0; font-size: 13px; }
        .hero-strip b { color: var(--blue); font-size: 20px; }

        section { padding: 78px 0; }
        .section-white { background: var(--white); }
        .section-heading { max-width: 690px; margin-bottom: 33px; }
        .section-heading h2 { margin: 9px 0 10px; font-size: clamp(1.7rem, 3vw, 2.5rem); }
        .section-heading p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.85; }
        .section-heading.center { margin-left: auto; margin-right: auto; text-align: center; }
        .section-heading.center .eyebrow { justify-content: center; }

        .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
        .case-card {
            min-height: 205px;
            padding: 25px;
            border-radius: var(--radius);
            background: #f7faff;
            border: 1px solid var(--line);
            transition: .25s ease;
        }
        .case-card:hover, .video-card:hover, .news-card:hover, .category-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
        .case-card h3 { margin: 18px 0 8px; font-size: 19px; }
        .case-card p { color: var(--muted); margin: 0; font-size: 14px; }
        .case-number { color: var(--blue); font-size: 32px; font-weight: 800; }
        .tag {
            display: inline-flex;
            align-items: center;
            width: fit-content;
            padding: 4px 9px;
            border-radius: 6px;
            color: var(--blue);
            background: var(--soft-blue);
            font-size: 11px;
            line-height: 1.4;
            font-weight: 800;
        }
        .tag.cyan { color: #087f83; background: var(--soft-cyan); }

        .stats-band { background: #173c70; color: #fff; }
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
        .stat { padding-right: 20px; border-right: 1px solid rgba(255,255,255,.18); }
        .stat:last-child { border-right: 0; }
        .stat strong { display: block; font-size: 34px; line-height: 1.2; }
        .stat span { display: block; margin-top: 8px; color: rgba(255,255,255,.68); font-size: 13px; }

        .compare-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
        .compare-box { padding: 28px; border-radius: var(--radius); border: 1px solid var(--line); }
        .compare-box.before { background: #f8fafc; }
        .compare-box.after { background: #eef8ff; border-color: #c9def8; }
        .compare-box h3 { margin: 15px 0 12px; font-size: 20px; }
        .compare-list { margin: 0; padding: 0; list-style: none; color: var(--muted); font-size: 14px; }
        .compare-list li { padding: 9px 0; border-bottom: 1px solid rgba(120,145,175,.16); }
        .compare-list li:last-child { border: 0; }
        .compare-list li:before { content: "✓"; color: var(--blue); font-weight: 800; margin-right: 9px; }

        .method-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
        .method-step { position: relative; padding: 24px 20px; background: #fff; border-top: 3px solid var(--blue); box-shadow: 0 8px 25px rgba(27,68,117,.07); }
        .method-step .step { color: var(--cyan); font-weight: 800; font-size: 13px; }
        .method-step h3 { margin: 13px 0 8px; font-size: 17px; }
        .method-step p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.75; }

        .video-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
        .video-card { overflow: hidden; border: 1px solid var(--line); border-radius: 15px; background: #fff; transition: .25s ease; }
        .video-cover { position: relative; height: 158px; overflow: hidden; }
        .video-cover img { height: 100%; transition: .35s ease; }
        .video-card:hover .video-cover img { transform: scale(1.05); }
        .video-cover .tag { position: absolute; top: 12px; left: 12px; color: #fff; background: rgba(19,34,56,.78); }
        .play-mark { position: absolute; right: 12px; bottom: 12px; display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; color: #fff; background: var(--blue); }
        .video-info { padding: 16px; }
        .video-info h3 { overflow: hidden; margin: 0 0 8px; font-size: 16px; white-space: nowrap; text-overflow: ellipsis; }
        .video-meta { display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; }
        .rating { color: #e19a20; font-weight: 800; }

        .category-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
        .category-card { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; transition: .25s ease; }
        .category-card h3 { margin: 17px 0 8px; font-size: 18px; }
        .category-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
        .category-icon { color: var(--blue); font-size: 25px; }

        .rank-news { display: grid; grid-template-columns: .95fr 1.05fr; gap: 52px; align-items: start; }
        .rank-list { margin: 0; padding: 0; list-style: none; }
        .rank-item { display: grid; grid-template-columns: 34px 1fr auto; align-items: center; gap: 12px; padding: 13px 0; border-bottom: 1px solid var(--line); }
        .rank-item:last-child { border-bottom: 0; }
        .rank-no { color: #95a4b8; font-size: 18px; font-weight: 800; }
        .rank-item:nth-child(-n+3) .rank-no { color: var(--blue); }
        .rank-title { font-size: 14px; font-weight: 700; }
        .rank-title small { display: block; color: var(--muted); font-size: 11px; font-weight: 400; }
        .rank-score { color: #e19a20; font-size: 13px; font-weight: 800; }
        .news-list { display: grid; gap: 12px; }
        .news-card { display: grid; grid-template-columns: 112px 1fr; gap: 15px; padding: 10px; border: 1px solid var(--line); border-radius: 13px; background: #fff; transition: .25s ease; }
        .news-card img { height: 80px; border-radius: 9px; }
        .news-card h3 { margin: 5px 0 5px; font-size: 15px; line-height: 1.5; }
        .news-card time { color: #95a4b8; font-size: 12px; }

        .testimonial {
            padding: 34px;
            border-left: 4px solid var(--cyan);
            background: #f3fbfc;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .testimonial p { margin: 0 0 18px; color: #40566f; font-size: 18px; line-height: 1.9; }
        .testimonial strong { font-size: 14px; }
        .testimonial span { margin-left: 10px; color: var(--muted); font-size: 13px; }

        .faq-wrap { max-width: 850px; margin: auto; }
        .accordion-item { overflow: hidden; margin-bottom: 10px; border: 1px solid var(--line) !important; border-radius: 12px !important; background: #fff; }
        .accordion-button { padding: 19px 21px; color: var(--ink); background: #fff; font-weight: 700; box-shadow: none !important; }
        .accordion-button:not(.collapsed) { color: var(--blue); background: var(--soft-blue); }
        .accordion-body { color: var(--muted); font-size: 14px; line-height: 1.85; }

        .final-cta {
            padding: 72px 0;
            color: #fff;
            background: #1b4f9d;
        }
        .cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
        .cta-inner h2 { max-width: 660px; margin: 0 0 9px; font-size: clamp(1.7rem, 3vw, 2.6rem); }
        .cta-inner p { max-width: 680px; margin: 0; color: rgba(255,255,255,.76); }
        .cta-inner .btn-main { color: var(--blue-deep); background: #fff; box-shadow: none; white-space: nowrap; }
        .cta-inner .btn-main:hover { background: #eaf6ff; }

        footer { color: #aebed1; background: #10243f; padding: 57px 0 22px; }
        .footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 35px; padding-bottom: 42px; }
        footer .brand { color: #fff; margin-bottom: 16px; }
        .footer-intro { max-width: 290px; color: #8fa4bd; font-size: 13px; line-height: 1.8; }
        footer h3 { margin: 4px 0 16px; color: #fff; font-size: 14px; }
        .footer-links { display: grid; gap: 9px; }
        .footer-links a { color: #9db0c7; font-size: 13px; transition: .2s; }
        .footer-links a:hover { color: #fff; }
        .copyright { padding-top: 18px; border-top: 1px solid rgba(255,255,255,.12); color: #7f95ae; font-size: 12px; }

        @media (max-width: 991px) {
            .navbar-nav { padding: 14px 0; }
            .nav-action { margin: 5px 0 0; display: inline-block; width: fit-content; }
            .bento { grid-template-columns: 1fr; }
            .bento-side { grid-template-columns: repeat(2,1fr); }
            .video-grid { grid-template-columns: repeat(3,1fr); }
            .category-grid { grid-template-columns: repeat(2,1fr); }
            .rank-news { grid-template-columns: 1fr; gap: 45px; }
            .footer-grid { grid-template-columns: 1.4fr repeat(2, 1fr); }
        }
        @media (max-width: 767px) {
            section { padding: 57px 0; }
            .hero { padding: 51px 0 45px; }
            h1 { font-size: 2.45rem; }
            .hero-copy { font-size: 15px; }
            .stats-grid { grid-template-columns: repeat(2,1fr); gap: 25px 15px; }
            .stat { border-right: 0; }
            .case-grid, .method-grid { grid-template-columns: repeat(2,1fr); }
            .video-grid { grid-template-columns: repeat(2,1fr); gap: 12px; }
            .video-cover { height: 125px; }
            .compare-wrap { grid-template-columns: 1fr; }
            .cta-inner { align-items: flex-start; flex-direction: column; }
            .footer-grid { grid-template-columns: repeat(2,1fr); }
            .footer-grid > :first-child { grid-column: 1 / -1; }
        }
        @media (max-width: 520px) {
            .brand-name { font-size: 14px; }
            .brand-mark { width: 36px; height: 36px; }
            .bento-side, .case-grid, .method-grid, .category-grid, .video-grid { grid-template-columns: 1fr; }
            .bento-main { min-height: 260px; }
            .hero-strip { align-items: flex-start; flex-direction: column; }
            .video-cover { height: 180px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 25px 15px; }
            .news-card { grid-template-columns: 94px 1fr; }
            .news-card img { height: 74px; }
        }

/* roulang page: category1 */
:root {
      --ink:#132238;--muted:#68768a;--blue:#2368df;--blue-deep:#1744a6;--cyan:#25b9c9;
      --paper:#f5f8fc;--white:#fff;--line:#dce5f0;--soft-blue:#eaf2ff;--soft-cyan:#e8fbfa;
      --radius:18px;--shadow:0 16px 45px rgba(26,63,112,.1);--shadow-hover:0 22px 55px rgba(26,63,112,.17);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:var(--paper);font-family:"Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none} img{display:block;width:100%;object-fit:cover} button,input{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(37,185,201,.42);outline-offset:3px}
    .container{max-width:1180px}.topbar{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.94);border-bottom:1px solid rgba(220,229,240,.85);backdrop-filter:blur(16px)}
    .navbar{min-height:78px}.brand{display:inline-flex;align-items:center;gap:11px;color:var(--ink);font-weight:800;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:40px;height:40px;color:#fff;background:var(--blue);border-radius:12px;box-shadow:0 8px 18px rgba(35,104,223,.25);font-size:18px}.brand-name{font-size:16px}
    .navbar-nav{gap:6px}.nav-link{color:#617087!important;padding:10px 13px!important;border-radius:10px;font-size:14px;font-weight:600;transition:.2s ease}.nav-link:hover,.nav-link.active{color:var(--blue)!important;background:var(--soft-blue)}.nav-action{color:#fff!important;background:var(--blue);margin-left:10px}.nav-action:hover{background:var(--blue-deep)}.navbar-toggler{border:0;padding:8px}.navbar-toggler:focus{box-shadow:none}
    .page-hero{padding:76px 0 70px;background:#edf5ff;border-bottom:1px solid #dce9f8}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.08em}.eyebrow:before{content:"";width:25px;height:3px;border-radius:4px;background:var(--cyan)}
    h1{font-size:clamp(2.25rem,5vw,4.4rem);line-height:1.2;letter-spacing:0;margin:14px 0 18px}.highlight{color:var(--blue)}.hero-copy{max-width:690px;color:#586a80;font-size:17px;line-height:1.9;margin:0}
    .hero-panel{height:100%;padding:28px;border:1px solid #d5e4f4;border-radius:22px;background:#fff;box-shadow:var(--shadow)}.hero-panel img{height:190px;border-radius:14px}.panel-meta{display:flex;justify-content:space-between;gap:14px;margin-top:18px;color:var(--muted);font-size:13px}.panel-meta strong{display:block;color:var(--ink);font-size:20px}
    section{padding:78px 0}.section-white{background:var(--white)}.section-heading{max-width:700px;margin-bottom:32px}.section-heading h2{margin:9px 0 10px;font-size:clamp(1.7rem,3vw,2.5rem)}.section-heading p{margin:0;color:var(--muted);font-size:15px;line-height:1.85}
    .category-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:24px}.feature-card{position:relative;min-height:390px;overflow:hidden;border-radius:22px;background:#173b70;box-shadow:var(--shadow)}.feature-card img{height:390px;opacity:.8}.feature-card:after{content:"";position:absolute;inset:35% 0 0;background:linear-gradient(transparent,rgba(7,26,55,.92))}.feature-content{position:absolute;z-index:1;left:30px;right:30px;bottom:27px;color:#fff}.feature-content h3{margin:10px 0 7px;font-size:27px}.feature-content p{margin:0;color:#dce9f8;font-size:14px}
    .topic-stack{display:grid;gap:14px}.topic-row{display:flex;align-items:center;gap:16px;padding:20px;border:1px solid var(--line);border-radius:16px;background:#f9fbfe;transition:.25s ease}.topic-row:hover{transform:translateX(5px);box-shadow:var(--shadow)}.topic-icon{display:grid;place-items:center;flex:0 0 48px;height:48px;border-radius:13px;background:var(--soft-cyan);color:#138691;font-size:20px;font-weight:800}.topic-row h3{margin:0 0 3px;font-size:17px}.topic-row p{margin:0;color:var(--muted);font-size:13px;line-height:1.6}
    .content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.video-card{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 8px 28px rgba(26,63,112,.06);transition:.25s ease}.video-card img{height:174px}.video-body{padding:18px}.video-top{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:9px}.badge-soft{display:inline-flex;padding:4px 9px;border-radius:7px;color:var(--blue);background:var(--soft-blue);font-size:11px;font-weight:800}.rating{color:#d88b16;font-size:13px;font-weight:700}.video-card h3{font-size:18px;margin:0 0 6px}.video-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
    .topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.topic-box{padding:24px 20px;background:#fff;border:1px solid var(--line);border-radius:16px;transition:.25s ease}.topic-box:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}.topic-box span{color:var(--blue);font-size:12px;font-weight:800}.topic-box h3{margin:12px 0 7px;font-size:18px}.topic-box p{margin:0;color:var(--muted);font-size:13px;line-height:1.75}
    .rank-layout{display:grid;grid-template-columns:1fr .9fr;gap:25px}.rank-list{margin:0;padding:0;list-style:none;background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}.rank-item{display:grid;grid-template-columns:42px 1fr auto auto;align-items:center;gap:14px;padding:15px 20px;border-bottom:1px solid #edf1f6}.rank-item:last-child{border-bottom:0}.rank-num{font-size:20px;font-weight:800;color:#a9b7c9}.rank-item:first-child .rank-num{color:var(--blue)}.rank-item h3{margin:0;font-size:15px}.rank-item small{color:var(--muted)}.heat{color:#e27b25;font-size:13px;font-weight:700}.quote-panel{padding:31px;border-radius:20px;background:var(--blue);color:#fff;box-shadow:var(--shadow)}.quote-panel p{font-size:20px;line-height:1.8;margin:0 0 22px}.quote-panel span{color:#cfe0ff;font-size:13px}
    .news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.news-card{display:flex;gap:14px;padding:15px;border:1px solid var(--line);border-radius:15px;background:#fff;transition:.25s ease}.news-card img{width:100px;height:78px;border-radius:10px;flex:0 0 100px}.news-card h3{font-size:15px;line-height:1.5;margin:2px 0 7px}.news-card time{color:var(--muted);font-size:12px}
    .faq-wrap{max-width:880px;margin:auto}.accordion-item{border:1px solid var(--line)!important;border-radius:12px!important;overflow:hidden;margin-bottom:12px;background:#fff}.accordion-button{font-weight:700;color:var(--ink);background:#fff;box-shadow:none!important}.accordion-button:not(.collapsed){color:var(--blue);background:var(--soft-blue)}.accordion-body{color:var(--muted);font-size:14px}
    .cta{padding:62px 0;background:#eaf2ff}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}.cta h2{margin:0 0 8px;font-size:30px}.cta p{margin:0;color:var(--muted)}
    .btn-main,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 21px;border-radius:11px;font-size:14px;font-weight:700;transition:.2s ease}.btn-main{color:#fff;background:var(--blue);box-shadow:0 9px 20px rgba(35,104,223,.2)}.btn-main:hover{color:#fff;background:var(--blue-deep);transform:translateY(-2px)}.btn-ghost{color:var(--blue);background:#fff;border:1px solid #c9d9ef}.btn-ghost:hover{color:var(--blue-deep);border-color:var(--blue);background:var(--soft-blue)}
    footer{padding:58px 0 24px;background:#132238;color:#d7e2f0}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}.footer-grid .brand{color:#fff}.footer-intro{max-width:300px;margin:18px 0 0;color:#9fb0c5;font-size:13px;line-height:1.8}.footer-grid h3{margin:3px 0 15px;color:#fff;font-size:15px}.footer-links{display:grid;gap:8px}.footer-links a{color:#9fb0c5;font-size:13px;transition:.2s}.footer-links a:hover{color:#fff}.copyright{margin-top:42px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#8fa2ba;font-size:12px}
    @media(max-width:1024px){.container{max-width:92%}.topic-grid{grid-template-columns:repeat(2,1fr)}.news-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.navbar-nav{padding:14px 0}.nav-action{margin:8px 0 0}.page-hero{padding:55px 0}.category-layout,.rank-layout{grid-template-columns:1fr}.content-grid{grid-template-columns:repeat(2,1fr)}.cta-inner{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:520px){.brand-name{font-size:14px}.brand-mark{width:36px;height:36px}.content-grid,.topic-grid,.news-grid{grid-template-columns:1fr}section{padding:55px 0}.hero-panel img{height:160px}.feature-card,.feature-card img{min-height:330px;height:330px}.feature-content h3{font-size:22px}.rank-item{grid-template-columns:30px 1fr auto;gap:9px}.rank-item small{display:none}.footer-grid{grid-template-columns:1fr;gap:25px}.copyright{margin-top:28px}}