/* roulang page: index */
:root{
      --ink:#f7f1f3;--muted:#b9aeb4;--dim:#81747b;--bg:#110e13;--panel:#1b151c;
      --panel-2:#241b24;--line:#3a2b38;--pink:#f22f78;--orange:#ff9f43;--lime:#d7f35b;
      --radius:14px;--shadow:0 18px 50px rgba(0,0,0,.28);
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    .container{max-width:1200px;padding-left:22px;padding-right:22px}
    .site-header{position:fixed;z-index:1000;top:0;left:0;width:100%;background:rgba(17,14,19,.86);backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.08)}
    .navbar{min-height:76px}
    .brand{font-weight:900;letter-spacing:-.04em;font-size:1.12rem;display:flex;gap:10px;align-items:center}
    .brand-mark{width:28px;height:28px;background:var(--pink);display:grid;place-items:center;color:#160d12;border-radius:8px;font-weight:900}
    .nav-link{color:var(--muted)!important;padding:9px 16px!important;border-radius:8px;transition:.25s}
    .nav-link:hover,.nav-link.active{background:var(--panel-2);color:var(--ink)!important}
    .nav-link.active{box-shadow:inset 0 -2px var(--pink)}
    .btn-main,.btn-soft,.btn-text{min-height:46px;border-radius:9px;padding:10px 20px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.25s;border:1px solid transparent}
    .btn-main{background:var(--pink);color:#210d16}
    .btn-main:hover{background:#ff5892;color:#210d16;transform:translateY(-2px);box-shadow:0 10px 24px rgba(242,47,120,.22)}
    .btn-soft{border-color:var(--line);background:transparent;color:var(--ink)}
    .btn-soft:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px)}
    .btn-text{color:var(--lime);padding:5px 0;min-height:auto}
    .navbar-toggler{border:1px solid var(--line);padding:9px 11px}
    .navbar-toggler-icon{filter:invert(1)}
    .hero{min-height:700px;padding:150px 0 84px;position:relative;overflow:hidden;display:flex;align-items:center;background:#0d0b10}
    .hero::before{content:"";position:absolute;inset:0;opacity:.18;background-image:linear-gradient(rgba(255,255,255,.1) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.1) 1px,transparent 1px);background-size:48px 48px}
    .hero::after{content:"";position:absolute;width:55vw;height:55vw;right:-18vw;top:-28vw;background:radial-gradient(circle,rgba(242,47,120,.25),transparent 65%);pointer-events:none}
    .hero-content{position:relative;z-index:2}
    .eyebrow,.section-kicker{color:var(--lime);font:700 .75rem/1.2 monospace;letter-spacing:.12em;text-transform:uppercase}
    h1,h2,h3{font-weight:900;letter-spacing:-.045em;line-height:1.15}
    h1{font-size:clamp(2.5rem,6vw,5.5rem);max-width:680px;margin:18px 0 22px}
    .hero-copy{max-width:620px;color:var(--muted);font-size:1.08rem;margin-bottom:30px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .hero-video{position:relative;min-height:390px;border:1px solid var(--line);background:linear-gradient(135deg,#271725,#16121a 54%,#342019);border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}
    .hero-video::before{content:"";position:absolute;inset:15%;border:1px solid rgba(215,243,91,.28);transform:skew(-12deg);box-shadow:0 0 80px rgba(242,47,120,.16)}
    .hero-video::after{content:"预览画面 · 内容入口";position:absolute;left:25px;bottom:22px;color:rgba(255,255,255,.55);font-size:.82rem}
    .video-grid{position:absolute;inset:0;display:grid;grid-template-columns:1.4fr .8fr;gap:12px;padding:28px;opacity:.8}
    .video-tile{border:1px solid rgba(255,255,255,.12);background:linear-gradient(160deg,rgba(242,47,120,.4),rgba(35,22,39,.3));border-radius:10px}
    .video-tile:nth-child(2){background:linear-gradient(160deg,rgba(255,159,67,.35),rgba(30,20,30,.4))}
    .play{position:absolute;z-index:2;left:50%;top:50%;transform:translate(-50%,-50%);width:72px;height:72px;border:0;border-radius:50%;background:var(--lime);color:#171712;font-size:1.4rem;box-shadow:0 0 0 10px rgba(215,243,91,.12);transition:.25s}
    .play:hover{transform:translate(-50%,-50%) scale(1.06);background:#efff9b}
    section{padding:94px 0}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:34px}
    .section-head h2{font-size:clamp(1.9rem,3vw,3rem);margin:10px 0 0}
    .section-head p{color:var(--muted);max-width:520px;margin:0}
    .metric-panel{margin-top:-38px;position:relative;z-index:4;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden}
    .metric{padding:24px 26px;border-right:1px solid var(--line)}
    .metric:last-child{border-right:0}.metric strong{display:block;color:var(--orange);font:900 2rem/1.1 monospace}.metric span{color:var(--muted);font-size:.84rem}
    .matrix{display:grid;grid-template-columns:1.25fr .85fr .85fr;gap:14px}
    .matrix-card{min-height:185px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:25px;position:relative;transition:.25s;overflow:hidden}
    .matrix-card:first-child{grid-row:span 2;min-height:384px;background:linear-gradient(145deg,#2d1728,var(--panel) 55%)}
    .matrix-card:hover{border-color:var(--pink);transform:translateY(-3px)}
    .matrix-card h3{font-size:1.3rem;margin:34px 0 9px}.matrix-card p{color:var(--muted);font-size:.92rem;max-width:290px}
    .matrix-card .arrow{position:absolute;right:23px;bottom:20px;color:var(--lime);font-size:1.35rem}
    .tag{display:inline-flex;padding:4px 9px;border-radius:6px;background:rgba(215,243,91,.1);color:var(--lime);font-size:.72rem;font-weight:800}
    .compare{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
    .compare-row{display:grid;grid-template-columns:1.2fr 1fr 1fr 1.5fr;align-items:center;border-bottom:1px solid var(--line);padding:20px 0;gap:18px}
    .compare-row:last-child{border-bottom:0}.compare-label{font-weight:800}.compare small{color:var(--muted);display:block}.compare-num{font:900 1.55rem monospace;color:var(--orange)}.progress{height:5px;background:#332732}.progress-bar{background:var(--pink)}
    .info-strip{margin-top:18px;display:flex;justify-content:space-between;align-items:center;background:#211820;border-left:3px solid var(--lime);padding:16px 20px;color:var(--muted);font-size:.9rem}
    .vertical-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .flow-step{padding:28px 24px;border-right:1px solid var(--line);position:relative}.flow-step:last-child{border:0}.flow-no{font:900 2.8rem monospace;color:var(--pink);opacity:.7}.flow-step h3{font-size:1.15rem;margin:12px 0 7px}.flow-step p{color:var(--muted);font-size:.9rem;margin:0}
    .news-layout{display:grid;grid-template-columns:1.4fr .75fr;gap:20px}.news-list,.news-side{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:10px 24px}
    .news-item{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}.news-item:last-child{border:0}.news-item h3{font-size:1rem;margin:0 0 5px}.news-item p{margin:0;color:var(--muted);font-size:.86rem}.news-date{color:var(--dim);font: .75rem monospace;white-space:nowrap}.news-side{padding:27px}.news-side h3{font-size:1.2rem}.news-side p{color:var(--muted);font-size:.9rem}.mini-line{padding:14px 0;border-bottom:1px solid var(--line);font-size:.9rem}.mini-line:last-child{border:0}
    .open-guide{background:linear-gradient(105deg,#271624,#1a161d);border:1px solid var(--line);border-radius:var(--radius);padding:34px}.open-guide p{color:var(--muted);max-width:640px}.guide-pills{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.guide-pills span{border:1px solid var(--line);padding:8px 12px;border-radius:8px;color:var(--muted);font-size:.86rem}
    .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)!important}.accordion-button{background:transparent!important;color:var(--ink)!important;box-shadow:none!important;font-weight:800;padding:22px 4px}.accordion-button::after{filter:invert(1);opacity:.6}.accordion-body{color:var(--muted);padding:0 34px 22px 4px}
    .cta-wrap{background:var(--panel-2);border:1px solid var(--line);border-radius:18px;padding:42px}.cta-wrap h2{font-size:2.3rem}.cta-wrap p,.form-label{color:var(--muted)}.form-control,.form-select{min-height:48px;background:#130f15;border:1px solid var(--line);color:var(--ink);border-radius:8px}.form-control:focus,.form-select:focus{background:#130f15;color:var(--ink);border-color:var(--pink);box-shadow:0 0 0 3px rgba(242,47,120,.14)}.form-check-input{background-color:#130f15;border-color:var(--line)}.form-check-input:checked{background-color:var(--pink);border-color:var(--pink)}.required{color:var(--pink)}
    footer{padding:38px 0;border-top:1px solid var(--line);color:var(--dim);font-size:.85rem}.footer-inner{display:flex;justify-content:space-between;gap:20px;align-items:center}.footer-brand{color:var(--ink);font-weight:800}
    @media(max-width:991px){.navbar-collapse{background:var(--panel);padding:14px;border:1px solid var(--line);border-radius:10px;margin-top:10px}.matrix{grid-template-columns:1fr 1fr}.matrix-card:first-child{grid-row:auto;grid-column:span 2}.hero-video{margin-top:35px}.news-layout{grid-template-columns:1fr}}
    @media(max-width:767px){.hero{padding-top:125px;min-height:auto}.hero-video{min-height:280px}.metric-panel{margin-top:25px;grid-template-columns:1fr 1fr}.metric:nth-child(2){border-right:0}.metric:nth-child(-n+2){border-bottom:1px solid var(--line)}section{padding:65px 0}.section-head{display:block}.section-head p{margin-top:16px}.compare-row{grid-template-columns:1fr 1fr}.compare-row>div:last-child{grid-column:span 2}.vertical-flow{grid-template-columns:1fr}.flow-step{border-right:0;border-bottom:1px solid var(--line)}.cta-wrap{padding:26px}.footer-inner{display:block}.footer-inner>*{margin-bottom:10px}}
    @media(max-width:520px){.container{padding-left:16px;padding-right:16px}h1{font-size:2.55rem}.matrix{grid-template-columns:1fr}.matrix-card:first-child{grid-column:auto}.hero-actions .btn-main,.hero-actions .btn-soft{width:100%}.metric{padding:19px 16px}.metric strong{font-size:1.55rem}.news-list,.news-side{padding-left:17px;padding-right:17px}.news-item{display:block}.news-date{display:block;margin-top:8px}.cta-wrap h2{font-size:1.85rem}}

/* roulang page: category1 */
:root{
      --ink:#f7f1f3;
      --muted:#b9aeb4;
      --dim:#81747b;
      --bg:#110e13;
      --panel:#1b151c;
      --panel-2:#241b24;
      --line:#3a2b38;
      --pink:#f22f78;
      --orange:#ff9f43;
      --lime:#d7f35b;
      --radius:14px;
      --shadow:0 18px 50px rgba(0,0,0,.28);
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      background:var(--bg);
      color:var(--ink);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    .container{max-width:1200px;padding-left:22px;padding-right:22px}
    .site-header{
      position:fixed;z-index:1000;top:0;left:0;width:100%;
      background:rgba(17,14,19,.9);
      backdrop-filter:blur(16px);
      border-bottom:1px solid rgba(255,255,255,.08)
    }
    .navbar{min-height:76px}
    .brand{
      display:flex;align-items:center;gap:10px;
      font-size:1.12rem;font-weight:900;letter-spacing:-.04em;
      white-space:nowrap
    }
    .brand-mark{
      width:28px;height:28px;display:grid;place-items:center;
      background:var(--pink);color:#160d12;border-radius:8px;font-weight:900
    }
    .nav-link{
      color:var(--muted)!important;padding:9px 16px!important;
      border-radius:8px;transition:.25s
    }
    .nav-link:hover,.nav-link.active{
      background:var(--panel-2);color:var(--ink)!important
    }
    .nav-link.active{box-shadow:inset 0 -2px var(--pink)}
    .btn-main,.btn-soft,.btn-text{
      min-height:46px;border-radius:9px;padding:10px 20px;
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      font-weight:800;transition:.25s;border:1px solid transparent
    }
    .btn-main{background:var(--pink);color:#210d16}
    .btn-main:hover{
      background:#ff5892;color:#210d16;transform:translateY(-2px);
      box-shadow:0 10px 24px rgba(242,47,120,.22)
    }
    .btn-soft{border-color:var(--line);background:transparent;color:var(--ink)}
    .btn-soft:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px)}
    .btn-text{color:var(--lime);padding:5px 0;min-height:auto}
    .navbar-toggler{border:1px solid var(--line);padding:9px 11px}
    .navbar-toggler:focus{box-shadow:0 0 0 3px rgba(242,47,120,.2)}
    .navbar-toggler-icon{filter:invert(1)}
    .navbar-collapse{background:var(--panel);padding:14px;border:1px solid var(--line);border-radius:10px;margin-top:10px}
    .page-hero{
      position:relative;padding:145px 0 58px;
      background:#0d0b10;overflow:hidden
    }
    .page-hero::before{
      content:"";position:absolute;inset:0;opacity:.14;
      background-image:linear-gradient(rgba(255,255,255,.1) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.1) 1px,transparent 1px);
      background-size:48px 48px
    }
    .page-hero::after{
      content:"";position:absolute;width:480px;height:480px;right:-130px;top:-220px;
      background:radial-gradient(circle,rgba(242,47,120,.2),transparent 68%)
    }
    .hero-inner{position:relative;z-index:1}
    .eyebrow,.section-kicker{
      color:var(--lime);font:700 .75rem/1.2 monospace;
      letter-spacing:.12em;text-transform:uppercase
    }
    h1{
      max-width:800px;margin:15px 0 16px;
      font-size:clamp(2.3rem,5vw,4.7rem);
      line-height:1.12;letter-spacing:-.065em;font-weight:900
    }
    .hero-summary{max-width:710px;color:var(--muted);font-size:1.05rem;margin:0}
    .crumbs{display:flex;gap:10px;align-items:center;color:var(--dim);font-size:.84rem;margin-bottom:18px}
    .crumbs a:hover{color:var(--lime)}
    .filter-shell{
      margin-top:38px;background:var(--panel);border:1px solid var(--line);
      border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)
    }
    .filter-label{display:block;color:var(--dim);font-size:.74rem;margin-bottom:6px}
    .form-control,.form-select{
      min-height:48px;background:#130f15;border:1px solid var(--line);
      color:var(--ink);border-radius:8px
    }
    .form-control::placeholder{color:#776b73}
    .form-control:focus,.form-select:focus{
      background:#130f15;color:var(--ink);border-color:var(--pink);
      box-shadow:0 0 0 3px rgba(242,47,120,.14)
    }
    .form-select{background-color:#130f15}
    .form-select option{background:#1b151c;color:var(--ink)}
    .filter-actions{display:flex;align-items:end;gap:10px;height:100%}
    .filter-actions .btn-main,.filter-actions .btn-soft{width:100%}
    section{padding:82px 0}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}
    .section-head h2{font-size:clamp(1.8rem,3vw,2.8rem);line-height:1.2;margin:10px 0 0}
    .section-head p{color:var(--muted);max-width:500px;margin:0}
    .result-line{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px;color:var(--muted);font-size:.9rem}
    .result-line strong{color:var(--ink)}
    .content-layout{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(260px,.7fr);gap:22px}
    .feature-card,.compact-list,.side-panel,.narrow-cta{
      background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)
    }
    .feature-card{
      min-height:310px;padding:30px;position:relative;overflow:hidden;
      background:linear-gradient(135deg,#2a1725,var(--panel) 58%)
    }
    .feature-card::after{
      content:"01";position:absolute;right:25px;top:14px;
      font:900 7rem/1 monospace;color:rgba(242,47,120,.12)
    }
    .feature-card h3{font-size:1.65rem;max-width:450px;margin:25px 0 12px;position:relative;z-index:1}
    .feature-card p{max-width:520px;color:var(--muted);position:relative;z-index:1}
    .meta{display:flex;flex-wrap:wrap;gap:9px;color:var(--dim);font-size:.78rem}
    .tag{
      display:inline-flex;padding:4px 9px;border-radius:6px;
      background:rgba(215,243,91,.1);color:var(--lime);
      font-size:.72rem;font-weight:800
    }
    .compact-list{padding:8px 20px}
    .compact-item{
      display:flex;justify-content:space-between;gap:16px;align-items:center;
      padding:18px 0;border-bottom:1px solid var(--line)
    }
    .compact-item:last-child{border-bottom:0}
    .compact-item h3{font-size:1rem;margin:0 0 4px}
    .compact-item p{color:var(--muted);font-size:.84rem;margin:0}
    .compact-item .arrow{color:var(--lime);font-size:1.25rem;transition:.2s}
    .compact-item:hover h3{color:var(--pink)}
    .compact-item:hover .arrow{transform:translateX(4px)}
    .side-panel{padding:25px;height:max-content;background:var(--panel-2)}
    .side-panel h3{font-size:1.15rem;margin:0 0 18px}
    .side-panel p{color:var(--muted);font-size:.9rem}
    .side-stat{display:flex;justify-content:space-between;padding:13px 0;border-bottom:1px solid var(--line);font-size:.86rem}
    .side-stat:last-child{border-bottom:0}
    .side-stat span:last-child{color:var(--lime);font-family:monospace}
    .status-bar{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:.82rem;margin-top:20px}
    .status-dot{width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(215,243,91,.1)}
    .pagination{gap:7px;margin-top:30px}
    .page-link{
      background:var(--panel);border:1px solid var(--line);color:var(--muted);
      border-radius:8px!important;min-width:42px;text-align:center
    }
    .page-link:hover,.page-item.active .page-link{
      background:var(--pink);border-color:var(--pink);color:#210d16
    }
    .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)!important}
    .accordion-button{
      background:transparent!important;color:var(--ink)!important;
      box-shadow:none!important;font-weight:800;padding:22px 4px
    }
    .accordion-button::after{filter:invert(1);opacity:.6}
    .accordion-body{color:var(--muted);padding:0 34px 22px 4px}
    .narrow-cta{padding:30px 34px;background:var(--panel-2)}
    .narrow-cta h2{font-size:1.7rem;margin:0 0 8px}
    .narrow-cta p{color:var(--muted);margin:0}
    footer{padding:38px 0;border-top:1px solid var(--line);color:var(--dim);font-size:.85rem}
    .footer-inner{display:flex;justify-content:space-between;gap:20px;align-items:center}
    .footer-brand{color:var(--ink);font-weight:800}
    :focus-visible{outline:3px solid rgba(215,243,91,.7);outline-offset:3px}
    @media (min-width:992px){.navbar-collapse{background:transparent;padding:0;border:0;margin-top:0}}
    @media (max-width:991px){
      .navbar-nav{padding:8px 0}
      .navbar-collapse .btn-main{width:100%;margin-top:8px}
      .content-layout{grid-template-columns:1fr}
      .side-panel{order:-1}
    }
    @media (max-width:767px){
      .container{padding-left:18px;padding-right:18px}
      .page-hero{padding-top:125px}
      section{padding:62px 0}
      .section-head{display:block}
      .section-head p{margin-top:14px}
      h1{font-size:clamp(2.25rem,12vw,3.6rem)}
      .filter-shell{padding:15px}
      .filter-actions{height:auto;margin-top:4px}
      .feature-card{min-height:280px;padding:24px}
      .footer-inner{display:grid;gap:8px}
    }
    @media (max-width:520px){
      .brand{font-size:.98rem}
      .brand-mark{width:26px;height:26px}
      .result-line{align-items:flex-start;flex-direction:column;gap:3px}
      .compact-item{align-items:flex-start}
      .narrow-cta{padding:25px 22px}
      .narrow-cta .btn-main{width:100%;margin-top:18px}
    }