/* roulang page: index */
:root{--navy:#102b4c;--blue:#1e67a8;--cyan:#38a6c7;--ink:#172b3d;--muted:#6e8090;--paper:#f5f8fb;--line:#dce6ee;--white:#fff;--orange:#f39a52;--radius:18px;--shadow:0 14px 40px rgba(16,43,76,.10)}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button{font:inherit;border:0}.container{max-width:1180px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.navbar{min-height:76px}.brand{display:flex;align-items:center;gap:11px;font-weight:800;color:var(--navy);font-size:18px}.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--navy);color:#fff;display:grid;place-items:center;box-shadow:0 7px 18px rgba(16,43,76,.2)}.nav-link{color:#526779!important;font-size:14px;font-weight:600;margin:0 5px;padding:9px 12px!important;border-radius:9px}.nav-link:hover,.nav-link.active{color:var(--blue)!important;background:#edf6fb}.nav-action{background:var(--navy);color:#fff!important;border-radius:9px;padding:10px 17px!important}.nav-action:hover{background:var(--blue)}
    .hero{position:relative;min-height:560px;display:flex;align-items:center;overflow:hidden;background:var(--navy);color:#fff}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(16,43,76,.98) 0%,rgba(16,43,76,.84) 42%,rgba(16,43,76,.25) 100%),url("https://images.unsplash.com/photo-1489599849927-2ee91cede3ba?auto=format&fit=crop&w=1800&q=85") center/cover}.hero .container{position:relative;z-index:1}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:#b7e7f2;font-size:13px;font-weight:700;letter-spacing:.06em;margin-bottom:18px}.eyebrow i{color:var(--orange)}.hero h1{font-size:clamp(34px,5vw,64px);line-height:1.16;letter-spacing:0;margin:0 0 20px;max-width:700px}.hero h1 span{color:#69d2e2}.hero-lead{font-size:17px;color:#d7e4ee;max-width:680px;margin-bottom:28px}.btn-main,.btn-ghost{display:inline-flex;align-items:center;gap:9px;padding:13px 21px;border-radius:10px;font-weight:700;transition:.25s}.btn-main{background:var(--orange);color:#fff}.btn-main:hover{background:#e88335;color:#fff;transform:translateY(-2px)}.btn-ghost{border:1px solid rgba(255,255,255,.45);color:#fff;margin-left:10px}.btn-ghost:hover{background:#fff;color:var(--navy)}.hero-strip{margin-top:42px;display:flex;gap:30px;flex-wrap:wrap}.hero-stat strong{display:block;font-size:25px;line-height:1.2}.hero-stat small{color:#b9cad6}
    section{padding:78px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}.section-kicker{font-size:12px;color:var(--blue);font-weight:800;letter-spacing:.12em;text-transform:uppercase}.section-title{font-size:32px;line-height:1.25;margin:7px 0 0;color:var(--navy);letter-spacing:0}.section-desc{max-width:650px;color:var(--muted);margin:12px 0 0}.text-link{font-size:14px;color:var(--blue);font-weight:700;white-space:nowrap}.text-link:hover{color:var(--navy)}
    .feature-band{background:#fff;border-bottom:1px solid var(--line)}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.feature{padding:26px;border:1px solid var(--line);background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);transition:.25s}.feature:hover,.media-card:hover,.topic:hover{transform:translateY(-5px);box-shadow:0 20px 45px rgba(16,43,76,.15)}.feature-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:#e8f5f8;color:var(--blue);font-size:18px;margin-bottom:18px}.feature h3{font-size:19px;margin-bottom:8px;color:var(--navy)}.feature p{font-size:14px;color:var(--muted);margin:0}
    .media-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.media-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;box-shadow:0 7px 24px rgba(16,43,76,.06)}.media-cover{height:190px;position:relative;overflow:hidden}.media-cover img{width:100%;height:100%;object-fit:cover;transition:.4s}.media-card:hover img{transform:scale(1.06)}.media-cover:after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 55%,rgba(16,43,76,.78))}.badge{position:absolute;z-index:1;top:12px;left:12px;background:rgba(255,255,255,.92);color:var(--blue);font-size:11px;font-weight:800;border-radius:6px;padding:3px 8px}.play{position:absolute;z-index:2;bottom:12px;right:13px;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--orange);color:#fff}.media-body{padding:16px}.media-body h3{font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin:0 0 7px;color:var(--navy)}.meta{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.rating{color:#e99541;font-weight:800}.rating i{font-size:10px}.dark-band{background:var(--navy);color:#fff}.dark-band .section-title{color:#fff}.dark-band .section-desc{color:#b6c9d6}.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.topic{min-height:180px;border-radius:var(--radius);padding:22px;color:#fff;position:relative;overflow:hidden;background-size:cover;background-position:center;transition:.25s}.topic:after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(16,43,76,.8),rgba(16,43,76,.25))}.topic>*{position:relative;z-index:1}.topic h3{font-size:20px;margin:54px 0 7px}.topic p{font-size:13px;color:#e1edf3;margin:0}
    .rank-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}.rank-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);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 #edf1f4}.rank-item:last-child{border:0}.rank-num{font-size:20px;font-weight:800;color:#afbfca}.rank-item:nth-child(-n+3) .rank-num{color:var(--orange)}.rank-name{font-weight:700;color:var(--navy)}.rank-tag{font-size:11px;color:var(--blue);background:#edf6fb;border-radius:5px;padding:3px 7px}.heat{font-size:12px;color:var(--muted)}.quote-panel{padding:31px;border-radius:var(--radius);background:#e9f5f8;display:flex;flex-direction:column;justify-content:center}.quote-panel p{font-size:20px;color:var(--navy);font-weight:700;margin:15px 0}.quote-panel small{color:var(--muted)}
    .news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.news{display:flex;gap:15px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:14px;transition:.2s}.news:hover{border-color:#9cc8dc}.news img{width:94px;height:78px;border-radius:9px;object-fit:cover}.news h3{font-size:15px;line-height:1.45;color:var(--navy);margin:2px 0 7px}.news time{font-size:12px;color:var(--muted)}.matrix{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.matrix a{background:#fff;padding:17px;border:1px solid var(--line);border-radius:12px;color:var(--navy);font-weight:700;font-size:14px;text-align:center;transition:.2s}.matrix a:hover{background:var(--blue);color:#fff;transform:translateY(-2px)}.faq{max-width:850px;margin:auto}.accordion-item{border:1px solid var(--line)!important;margin-bottom:10px;border-radius:12px!important;overflow:hidden}.accordion-button{font-weight:700;color:var(--navy);background:#fff;box-shadow:none!important}.accordion-button:not(.collapsed){color:var(--blue);background:#f1f8fb}.accordion-body{color:var(--muted);font-size:14px;background:#fff}.closing{background:#e9f5f8;text-align:center}.closing .section-title{max-width:700px;margin:0 auto 14px}.closing p{max-width:650px;margin:0 auto 25px;color:var(--muted)}
    footer{background:#0b2038;color:#b7c8d5;padding:58px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}.footer-brand{color:#fff;font-weight:800;font-size:18px;margin-bottom:13px}.footer-copy{font-size:13px;max-width:280px}.footer-title{color:#fff;font-weight:700;margin-bottom:14px}.footer-links{display:grid;gap:8px;font-size:13px}.footer-links a:hover{color:#fff}.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:18px;font-size:12px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
    @media(max-width:992px){.media-grid{grid-template-columns:repeat(3,1fr)}.topic-grid{grid-template-columns:repeat(2,1fr)}.rank-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:repeat(2,1fr)}.nav-action{display:inline-block;margin-top:7px}.navbar-nav{padding:12px 0}.nav-link{margin:2px 0}}
    @media(max-width:768px){section{padding:58px 0}.hero{min-height:600px}.hero h1{font-size:40px}.feature-grid,.news-grid{grid-template-columns:1fr}.media-grid{grid-template-columns:repeat(2,1fr)}.section-head{display:block}.section-head .text-link{display:inline-block;margin-top:15px}.matrix{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:520px){.brand{font-size:15px}.brand-mark{width:34px;height:34px}.hero h1{font-size:34px}.hero-lead{font-size:15px}.btn-main,.btn-ghost{width:100%;justify-content:center;margin:0 0 10px}.hero-strip{gap:18px}.media-grid{grid-template-columns:1fr 1fr;gap:12px}.media-cover{height:150px}.media-body{padding:12px}.media-body h3{font-size:14px}.topic-grid{grid-template-columns:1fr}.rank-item{grid-template-columns:30px 1fr auto;gap:8px;padding:13px 14px}.rank-item .heat{display:none}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.copyright{display:block}.copyright span{display:block;margin-top:5px}}

/* roulang page: category1 */
:root{--navy:#102b4c;--blue:#1e67a8;--cyan:#38a6c7;--ink:#172b3d;--muted:#6e8090;--paper:#f5f8fb;--line:#dce6ee;--white:#fff;--orange:#f39a52;--radius:18px;--shadow:0 14px 40px rgba(16,43,76,.10)}
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button{font:inherit;border:0}
        .container{max-width:1180px}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.95);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
        .navbar{min-height:76px}
        .brand{display:flex;align-items:center;gap:11px;font-weight:800;color:var(--navy);font-size:18px}
        .brand-mark{width:38px;height:38px;border-radius:11px;background:var(--navy);color:#fff;display:grid;place-items:center;box-shadow:0 7px 18px rgba(16,43,76,.2)}
        .nav-link{color:#526779!important;font-size:14px;font-weight:600;margin:0 5px;padding:9px 12px!important;border-radius:9px}
        .nav-link:hover,.nav-link.active{color:var(--blue)!important;background:#edf6fb}
        .nav-action{background:var(--navy);color:#fff!important;border-radius:9px;padding:10px 17px!important}
        .nav-action:hover{background:var(--blue)}
        .navbar-toggler{color:var(--navy);font-size:21px;padding:8px}
        .navbar-toggler:focus{box-shadow:0 0 0 3px rgba(30,103,168,.18)}
        .page-hero{padding:82px 0 72px;background:#fff;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:.08em;margin-bottom:16px}
        .eyebrow i{color:var(--orange)}
        .page-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.2;color:var(--navy);margin:0 0 18px;letter-spacing:0}
        .page-hero h1 span{color:var(--blue)}
        .page-lead{max-width:720px;color:var(--muted);font-size:17px;margin:0}
        .hero-aside{padding:26px;background:var(--navy);color:#fff;border-radius:var(--radius);box-shadow:var(--shadow);position:relative;overflow:hidden}
        .hero-aside:after{content:"";position:absolute;width:160px;height:160px;border:1px solid rgba(105,210,226,.25);border-radius:50%;right:-50px;bottom:-72px}
        .hero-aside-label{color:#9bd9e7;font-size:12px;font-weight:800;letter-spacing:.08em}
        .hero-aside strong{display:block;font-size:30px;line-height:1.2;margin:8px 0}
        .hero-aside p{color:#c3d4df;font-size:13px;margin:0;max-width:250px}
        section{padding:76px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
        .section-kicker{font-size:12px;color:var(--blue);font-weight:800;letter-spacing:.12em;text-transform:uppercase}
        .section-title{font-size:32px;line-height:1.25;margin:7px 0 0;color:var(--navy);letter-spacing:0}
        .section-desc{max-width:650px;color:var(--muted);margin:12px 0 0}
        .text-link{font-size:14px;color:var(--blue);font-weight:700;white-space:nowrap}
        .text-link:hover{color:var(--navy)}
        .topic-section{background:var(--paper)}
        .topic-layout{display:grid;grid-template-columns:1.1fr 1.9fr;gap:30px;align-items:stretch}
        .topic-intro{background:var(--navy);color:#fff;border-radius:var(--radius);padding:34px;min-height:320px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:var(--shadow)}
        .topic-intro h2{font-size:30px;line-height:1.3;margin:0 0 14px}
        .topic-intro p{color:#c4d5df;margin:0;font-size:14px}
        .topic-intro .mini-line{display:flex;gap:9px;align-items:center;color:#a9dce7;font-size:13px}
        .topic-intro .mini-line i{color:var(--orange)}
        .topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
        .topic{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 7px 24px rgba(16,43,76,.06);transition:.25s;min-height:150px}
        .topic:hover{transform:translateY(-5px);box-shadow:0 20px 45px rgba(16,43,76,.15)}
        .topic-icon{width:42px;height:42px;border-radius:12px;background:#e8f5f8;color:var(--blue);display:grid;place-items:center;margin-bottom:16px}
        .topic h3{font-size:18px;color:var(--navy);margin:0 0 7px}
        .topic p{font-size:13px;color:var(--muted);margin:0}
        .topic-count{display:inline-block;color:var(--blue);font-size:12px;font-weight:700;margin-top:12px}
        .selection-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .selection-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .selection{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:15px;transition:.25s}
        .selection:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
        .selection img{width:110px;height:125px;object-fit:cover;border-radius:10px}
        .selection h3{font-size:16px;color:var(--navy);margin:4px 0 7px}
        .selection p{font-size:13px;color:var(--muted);margin:0 0 9px}
        .rating{color:var(--orange);font-size:13px;font-weight:800}
        .rating span{color:var(--muted);font-weight:500;margin-left:5px}
        .dark-band{background:var(--navy);color:#fff}
        .dark-band .section-title{color:#fff}
        .dark-band .section-desc{color:#b6c9d6}
        .signal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
        .signal{border:1px solid rgba(255,255,255,.15);border-radius:15px;padding:25px;background:rgba(255,255,255,.05)}
        .signal-number{font-size:34px;font-weight:800;color:#69d2e2;line-height:1}
        .signal h3{font-size:18px;margin:16px 0 7px}
        .signal p{font-size:13px;color:#b7cbd6;margin:0}
        .news-section{background:var(--paper)}
        .news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
        .news{display:flex;gap:15px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:15px;transition:.25s}
        .news:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
        .news img{width:94px;height:78px;border-radius:9px;object-fit:cover;flex:none}
        .news h3{font-size:15px;line-height:1.45;color:var(--navy);margin:0 0 7px}
        .news time{font-size:12px;color:var(--muted)}
        .faq{max-width:850px;margin:auto}
        .accordion-item{border:1px solid var(--line)!important;margin-bottom:10px;border-radius:12px!important;overflow:hidden}
        .accordion-button{font-weight:700;color:var(--navy);background:#fff;box-shadow:none!important}
        .accordion-button:not(.collapsed){color:var(--blue);background:#f1f8fb}
        .accordion-body{color:var(--muted);font-size:14px;background:#fff}
        .closing{padding:62px 0;background:#fff;border-top:1px solid var(--line)}
        .closing-panel{display:flex;justify-content:space-between;align-items:center;gap:25px;background:#eef7fa;border:1px solid #cfe7ee;border-radius:var(--radius);padding:30px 34px}
        .closing .section-title{font-size:27px;margin:0 0 7px}
        .closing p{color:var(--muted);margin:0;font-size:14px}
        .btn-main,.btn-ghost{display:inline-flex;align-items:center;gap:9px;padding:12px 20px;border-radius:10px;font-weight:700;transition:.25s}
        .btn-main{background:var(--orange);color:#fff}
        .btn-main:hover{background:#e88335;color:#fff;transform:translateY(-2px)}
        .btn-ghost{border:1px solid var(--line);color:var(--navy);background:#fff}
        .btn-ghost:hover{background:var(--navy);color:#fff}
        footer{background:#0b2038;color:#b7c8d5;padding:58px 0 24px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
        .footer-brand{color:#fff;font-weight:800;font-size:18px;margin-bottom:13px}
        .footer-copy{font-size:13px;max-width:280px}
        .footer-title{color:#fff;font-weight:700;margin-bottom:14px}
        .footer-links{display:grid;gap:8px;font-size:13px}
        .footer-links a:hover{color:#fff}
        .copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:18px;font-size:12px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
        @media(max-width:991px){
            .navbar-nav{padding:14px 0}
            .nav-link{margin:3px 0}
            .topic-layout{grid-template-columns:1fr}
            .selection-list{grid-template-columns:repeat(2,1fr)}
            .news-grid{grid-template-columns:repeat(2,1fr)}
            .footer-grid{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:767px){
            section{padding:58px 0}
            .page-hero{padding:62px 0 52px}
            .hero-aside{margin-top:28px}
            .section-head{display:block}
            .section-head .text-link{display:inline-block;margin-top:15px}
            .topic-grid,.signal-grid,.selection-list,.news-grid{grid-template-columns:1fr}
            .topic-intro{min-height:260px}
            .closing-panel{display:block;padding:25px}
            .closing-panel .btn-main{margin-top:20px}
        }
        @media(max-width:520px){
            .brand{font-size:15px}
            .brand-mark{width:34px;height:34px}
            .page-hero h1{font-size:35px}
            .section-title{font-size:27px}
            .selection img{width:96px;height:112px}
            .footer-grid{grid-template-columns:1fr}
        }
        :focus-visible{outline:3px solid rgba(56,166,199,.45);outline-offset:3px}