/* roulang page: index */
:root{
            --navy:#102a43;
            --blue:#1769aa;
            --sky:#eaf5ff;
            --cyan:#28a9d6;
            --ink:#18324b;
            --muted:#71849a;
            --line:#dce8f2;
            --paper:#f7fbfe;
            --white:#ffffff;
            --gold:#e6a934;
            --shadow:0 18px 45px rgba(24,66,105,.10);
            --soft-shadow:0 8px 24px rgba(24,66,105,.08);
            --radius:20px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--ink);
            background:var(--paper);
            font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
            line-height:1.7;
            font-size:15px;
        }
        a{color:inherit;text-decoration:none;transition:.25s ease}
        img{max-width:100%;display:block}
        button{font:inherit}
        .container{max-width:1180px}
        .site-header{
            position:sticky;top:0;z-index:1000;
            background:rgba(255,255,255,.94);
            border-bottom:1px solid rgba(220,232,242,.9);
            backdrop-filter:blur(16px);
        }
        .navbar{min-height:76px}
        .brand-mark{
            width:40px;height:40px;border-radius:13px;
            display:grid;place-items:center;color:#fff;font-weight:800;
            background:linear-gradient(145deg,var(--blue),var(--cyan));
            box-shadow:0 8px 18px rgba(23,105,170,.25);
        }
        .brand-name{font-weight:800;letter-spacing:.2px;color:var(--navy);font-size:18px}
        .navbar-nav{gap:8px}
        .nav-link{
            color:#5d7186!important;
            padding:10px 14px!important;
            border-radius:10px;
            font-weight:600;
        }
        .nav-link:hover,.nav-link.active{color:var(--blue)!important;background:var(--sky)}
        .header-button{
            border:1px solid #cfe0ed;
            color:var(--blue);
            border-radius:12px;
            padding:9px 16px;
            font-weight:700;
            background:#fff;
        }
        .header-button:hover{background:var(--blue);color:#fff;border-color:var(--blue)}
        .hero{
            padding:72px 0 60px;
            background:
                radial-gradient(circle at 84% 18%,rgba(40,169,214,.15),transparent 29%),
                linear-gradient(135deg,#f9fdff 0%,#edf7ff 100%);
            border-bottom:1px solid var(--line);
        }
        .eyebrow{
            display:inline-flex;align-items:center;gap:8px;
            color:var(--blue);font-size:13px;font-weight:800;
            letter-spacing:1.5px;text-transform:uppercase;
            margin-bottom:17px;
        }
        .eyebrow:before{content:"";width:26px;height:3px;border-radius:4px;background:var(--cyan)}
        .hero h1{
            color:var(--navy);
            font-size:clamp(32px,5vw,59px);
            line-height:1.18;
            letter-spacing:-1.5px;
            margin:0 0 20px;
            font-weight:900;
        }
        .hero h1 em{font-style:normal;color:var(--blue)}
        .hero-copy{font-size:17px;color:#5c7186;max-width:700px;margin-bottom:26px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:25px}
        .btn-main,.btn-ghost{
            display:inline-flex;align-items:center;justify-content:center;
            border-radius:12px;padding:12px 22px;font-weight:800;
            border:1px solid transparent;
        }
        .btn-main{background:var(--blue);color:#fff;box-shadow:0 10px 22px rgba(23,105,170,.22)}
        .btn-main:hover{background:#0f568d;color:#fff;transform:translateY(-2px)}
        .btn-ghost{color:var(--blue);background:#fff;border-color:#c9deed}
        .btn-ghost:hover{border-color:var(--blue);background:var(--sky)}
        .trust-line{display:flex;gap:20px;flex-wrap:wrap;color:#6b8093;font-size:13px}
        .trust-line span{display:flex;align-items:center;gap:7px}
        .trust-line b{color:var(--blue);font-size:17px}
        .hero-panel{
            min-height:330px;border-radius:26px;overflow:hidden;position:relative;
            background:linear-gradient(150deg,rgba(16,42,67,.1),rgba(16,42,67,.8)),url('https://images.unsplash.com/photo-1489599849927-2ee91cede3ba?auto=format&fit=crop&w=1200&q=85') center/cover;
            box-shadow:var(--shadow);
        }
        .hero-panel-content{position:absolute;inset:auto 25px 24px;color:#fff}
        .hero-panel-content small{color:#bdeaff;font-weight:700}
        .hero-panel-content h3{font-size:25px;margin:7px 0 0}
        .mini-stat{
            position:absolute;right:20px;top:20px;
            padding:12px 16px;border-radius:15px;background:rgba(255,255,255,.92);
            color:var(--navy);font-weight:800;box-shadow:var(--soft-shadow)
        }
        section{padding:76px 0}
        .section-light{background:#fff}
        .section-heading{margin-bottom:34px}
        .section-kicker{font-size:12px;color:var(--blue);font-weight:800;letter-spacing:1.6px;margin-bottom:8px}
        .section-heading h2{font-size:32px;line-height:1.25;color:var(--navy);font-weight:850;margin:0 0 11px}
        .section-heading p{max-width:720px;color:var(--muted);margin:0}
        .offer-wrap{background:var(--navy);color:#fff;position:relative;overflow:hidden}
        .offer-wrap:after{content:"";position:absolute;width:310px;height:310px;border-radius:50%;right:-100px;top:-110px;background:rgba(40,169,214,.19)}
        .offer-wrap .section-heading h2{color:#fff}
        .offer-wrap .section-heading p{color:#b8ccdc}
        .offer-card{
            position:relative;z-index:1;height:100%;padding:25px;border:1px solid rgba(255,255,255,.14);
            border-radius:18px;background:rgba(255,255,255,.08)
        }
        .offer-card strong{display:block;font-size:26px;color:#fff;margin:10px 0}
        .offer-card span{color:#b9d2e5;font-size:13px}
        .offer-card.featured{background:#fff;color:var(--ink);border-color:#fff;transform:translateY(-7px)}
        .offer-card.featured strong{color:var(--blue)}
        .offer-card.featured span{color:var(--muted)}
        .badge-soft,.status{
            display:inline-flex;align-items:center;border-radius:30px;
            padding:4px 9px;font-size:11px;font-weight:800;
        }
        .badge-soft{background:var(--sky);color:var(--blue)}
        .status{background:#e8f8f0;color:#208054}
        .compare-card{height:100%;padding:26px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--soft-shadow)}
        .compare-card h3{font-size:20px;color:var(--navy);margin:14px 0 8px}
        .compare-card p{color:var(--muted);font-size:14px;margin-bottom:18px}
        .compare-list{list-style:none;padding:0;margin:0}
        .compare-list li{padding:9px 0;border-top:1px solid #edf2f6;color:#60778b}
        .compare-list li:before{content:"✓";color:var(--cyan);font-weight:900;margin-right:8px}
        .compare-card.highlight{border:2px solid #8ed8ed;box-shadow:var(--shadow)}
        .limited{
            background:linear-gradient(100deg,#e6f7ff,#f4fbff);
            border:1px solid #c9e9f4;border-radius:24px;padding:30px;
        }
        .limited h2{font-size:27px;color:var(--navy);margin:0 0 8px}
        .limited p{color:var(--muted);margin:0}
        .count-box{display:flex;gap:9px;justify-content:flex-end}
        .count-box div{background:#fff;border:1px solid #d5e9f1;border-radius:12px;padding:10px 12px;text-align:center;min-width:55px}
        .count-box b{display:block;color:var(--blue);font-size:21px;line-height:1}
        .count-box small{color:var(--muted);font-size:11px}
        .media-card{height:100%;background:#fff;border-radius:17px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--soft-shadow);transition:.3s ease}
        .media-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
        .media-image{height:205px;position:relative;overflow:hidden;background:#dcecf5}
        .media-image img{width:100%;height:100%;object-fit:cover;transition:.45s ease}
        .media-card:hover .media-image img{transform:scale(1.06)}
        .media-image .status{position:absolute;left:13px;top:13px}
        .media-info{padding:17px}
        .media-info h3{font-size:17px;margin:0 0 7px;color:var(--navy);font-weight:800}
        .media-info p{font-size:13px;color:var(--muted);margin:0 0 11px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
        .score{color:var(--gold);font-weight:800;font-size:13px}
        .score span{color:var(--muted);font-weight:500;margin-left:7px}
        .feature-strip{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .feature-item{padding:20px 12px;display:flex;gap:13px;align-items:flex-start}
        .feature-icon{width:42px;height:42px;flex:0 0 42px;display:grid;place-items:center;border-radius:13px;color:var(--blue);background:var(--sky);font-size:20px;font-weight:900}
        .feature-item h3{font-size:16px;margin:0 0 3px;color:var(--navy)}
        .feature-item p{font-size:13px;color:var(--muted);margin:0}
        .category-card{height:100%;padding:25px;border-radius:18px;background:#fff;border:1px solid var(--line);transition:.3s}
        .category-card:hover{border-color:#91d8e9;box-shadow:var(--soft-shadow);transform:translateY(-3px)}
        .category-card h3{font-size:19px;margin:13px 0 8px;color:var(--navy)}
        .category-card p{font-size:13px;color:var(--muted);margin:0}
        .category-symbol{font-size:25px;color:var(--cyan)}
        .rank-list{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--soft-shadow)}
        .rank-item{display:grid;grid-template-columns:45px 1fr auto auto;gap:15px;align-items:center;padding:16px 21px;border-bottom:1px solid #edf2f6}
        .rank-item:last-child{border-bottom:0}
        .rank-number{font-size:20px;color:#a4b5c3;font-weight:900}
        .rank-item:nth-child(-n+3) .rank-number{color:var(--blue)}
        .rank-name{font-weight:800;color:var(--navy)}
        .rank-meta{font-size:12px;color:var(--muted)}
        .rank-score{font-weight:800;color:var(--gold)}
        .quote-card{height:100%;padding:25px;border-radius:18px;background:#fff;border:1px solid var(--line);box-shadow:var(--soft-shadow)}
        .quote-card p{color:#516b80;font-size:14px;margin:0 0 19px}
        .quote-card strong{font-size:14px;color:var(--navy)}
        .quote-card small{display:block;color:var(--muted);margin-top:3px}
        .news-card{display:flex;gap:15px;padding:15px;background:#fff;border:1px solid var(--line);border-radius:15px;transition:.25s}
        .news-card:hover{box-shadow:var(--soft-shadow);transform:translateX(3px)}
        .news-card img{width:105px;height:78px;object-fit:cover;border-radius:11px}
        .news-card h3{font-size:15px;line-height:1.45;color:var(--navy);margin:0 0 7px}
        .news-card time{font-size:12px;color:var(--muted)}
        .faq-item{border-bottom:1px solid var(--line);padding:20px 0}
        .faq-item h3{font-size:17px;color:var(--navy);margin:0 0 8px}
        .faq-item p{font-size:14px;color:var(--muted);margin:0}
        .closing{
            padding:60px 0;background:linear-gradient(135deg,#0f3150,#1769aa);color:#fff;text-align:center
        }
        .closing h2{font-size:34px;margin:0 0 12px}
        .closing p{color:#c9e1ef;max-width:650px;margin:0 auto 24px}
        .closing .btn-main{background:#fff;color:var(--blue);box-shadow:none}
        .closing .btn-main:hover{background:#e8f8ff}
        footer{background:#0b2238;color:#9eb5c7;padding:52px 0 25px}
        footer h3{font-size:16px;color:#fff;margin:0 0 16px}
        footer p{font-size:13px;margin:0;max-width:290px}
        footer ul{list-style:none;padding:0;margin:0}
        footer li{margin-bottom:8px;font-size:13px}
        footer a:hover{color:#fff}
        .footer-brand{color:#fff;font-size:20px;font-weight:800;margin-bottom:12px}
        .copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:35px;padding-top:20px;font-size:12px;color:#7893a8}
        :focus-visible{outline:3px solid rgba(40,169,214,.45);outline-offset:3px}
        @media (max-width:991px){
            .navbar-collapse{padding:15px 0}
            .header-button{display:none}
            .hero{padding-top:52px}
            .hero-panel{margin-top:25px}
            .offer-card.featured{transform:none}
            .count-box{justify-content:flex-start;margin-top:20px}
        }
        @media (max-width:767px){
            section{padding:54px 0}
            .hero h1{font-size:36px}
            .hero-copy{font-size:15px}
            .section-heading h2{font-size:27px}
            .media-image{height:180px}
            .rank-item{grid-template-columns:32px 1fr auto;gap:9px;padding:14px}
            .rank-item .badge-soft{display:none}
            .rank-score{font-size:13px}
            .closing h2{font-size:28px}
        }
        @media (max-width:520px){
            .brand-name{font-size:16px}
            .hero{padding:42px 0}
            .hero h1{font-size:31px}
            .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%}
            .hero-panel{min-height:260px}
            .trust-line{gap:10px;flex-direction:column}
            .news-card img{width:88px;height:70px}
            .count-box{gap:5px}
            .count-box div{min-width:47px;padding:8px 6px}
        }