/* roulang page: index */
:root{
      --bg:#080914;
      --bg-soft:#101221;
      --panel:#14172a;
      --panel-2:#1b1f35;
      --line:rgba(255,255,255,.11);
      --line-strong:rgba(255,255,255,.19);
      --text:#f6f7ff;
      --muted:#a7abc4;
      --muted-2:#737995;
      --primary:#8b5cf6;
      --primary-light:#b49aff;
      --cyan:#27d9e7;
      --pink:#ff5fa8;
      --green:#4fe0a1;
      --warning:#ffca68;
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --shadow:0 18px 50px rgba(0,0,0,.26);
      --shadow-hover:0 24px 68px rgba(0,0,0,.46);
      --transition:all .26s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-width:320px;
      color:var(--text);
      background:
        radial-gradient(circle at 85% -5%,rgba(139,92,246,.17),transparent 25rem),
        radial-gradient(circle at 4% 36%,rgba(39,217,231,.08),transparent 25rem),
        var(--bg);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      font-size:16px;
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{border:0}
    ::selection{background:var(--primary);color:#fff}
    .container{max-width:1200px}
    .section{padding:105px 0;position:relative}
    .section-sm{padding:78px 0}
    .section-kicker{
      display:inline-flex;align-items:center;gap:8px;
      color:var(--primary-light);font-size:.78rem;font-weight:800;
      letter-spacing:.13em;text-transform:uppercase;
    }
    .section-kicker::before{
      content:"";width:25px;height:2px;border-radius:4px;background:var(--cyan);
      box-shadow:0 0 14px var(--cyan);
    }
    .section-title{
      max-width:760px;margin:13px 0 15px;
      font-size:clamp(1.85rem,4vw,3.2rem);line-height:1.22;letter-spacing:-.045em;font-weight:800;
    }
    .section-description{max-width:650px;margin:0;color:var(--muted);font-size:1.02rem}
    .text-gradient{
      background:linear-gradient(100deg,#fff 15%,#bcabff 50%,#57eaf0 100%);
      -webkit-background-clip:text;background-clip:text;color:transparent;
    }

    .site-header{
      position:sticky;top:0;z-index:1050;
      background:rgba(8,9,20,.76);
      border-bottom:1px solid rgba(255,255,255,.07);
      backdrop-filter:blur(18px);
    }
    .navbar{min-height:78px;padding:12px 0}
    .brand{
      display:flex;align-items:center;gap:10px;max-width:300px;
      font-size:.95rem;font-weight:800;line-height:1.25;
    }
    .brand-mark{
      flex:0 0 36px;width:36px;height:36px;display:grid;place-items:center;
      border-radius:11px;color:#fff;
      background:linear-gradient(135deg,var(--primary),#5c45e8 58%,var(--cyan));
      box-shadow:0 7px 22px rgba(125,85,255,.35);
    }
    .brand-name{letter-spacing:-.025em}
    .nav-link{
      position:relative!important;color:var(--muted)!important;font-weight:700;
      font-size:.92rem;padding:.55rem .8rem!important;transition:var(--transition);
    }
    .nav-link::after{
      content:"";position:absolute;left:.8rem;right:.8rem;bottom:.24rem;height:2px;
      background:var(--cyan);border-radius:3px;transform:scaleX(0);transition:var(--transition);
    }
    .nav-link:hover,.nav-link.active{color:var(--text)!important}
    .nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
    .command-search{
      display:flex;align-items:center;gap:8px;width:185px;height:40px;padding:0 10px;
      color:var(--muted);background:rgba(255,255,255,.055);border:1px solid var(--line);
      border-radius:11px;transition:var(--transition);
    }
    .command-search:focus-within{width:210px;border-color:rgba(180,154,255,.7);box-shadow:0 0 0 4px rgba(139,92,246,.13)}
    .command-search input{width:100%;color:var(--text);background:transparent;border:0;outline:0;font-size:.82rem}
    .command-search input::placeholder{color:var(--muted-2)}
    .key-hint{padding:1px 5px;border:1px solid var(--line);border-radius:5px;font-size:.66rem;color:var(--muted-2)}
    .navbar-toggler{padding:7px 10px;color:var(--text);border:1px solid var(--line)!important;border-radius:10px}
    .navbar-toggler:focus{box-shadow:0 0 0 4px rgba(139,92,246,.22)}
    .navbar-toggler-icon{filter:invert(1)}
    .btn{border-radius:12px;font-weight:800;transition:var(--transition)}
    .btn-primary-custom{
      color:#fff;padding:11px 18px;
      background:linear-gradient(130deg,var(--primary),#6245ea);
      border:1px solid rgba(202,186,255,.35);
      box-shadow:0 9px 24px rgba(102,69,234,.25);
    }
    .btn-primary-custom:hover{color:#fff;transform:translateY(-2px);box-shadow:0 15px 31px rgba(102,69,234,.4)}
    .btn-outline-custom{
      padding:11px 18px;color:var(--text);border:1px solid var(--line-strong);background:rgba(255,255,255,.035)
    }
    .btn-outline-custom:hover{color:#fff;background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.32);transform:translateY(-2px)}
    .btn:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(39,217,231,.6);outline-offset:3px}

    .hero{padding:100px 0 75px;position:relative;overflow:hidden}
    .hero::before{
      content:"";position:absolute;width:560px;height:560px;right:-180px;top:-180px;border-radius:50%;
      background:radial-gradient(circle,rgba(139,92,246,.25),transparent 67%);pointer-events:none;
    }
    .hero-grid{display:grid;grid-template-columns:1.07fr .93fr;gap:58px;align-items:center}
    .hero-badge{
      display:inline-flex;align-items:center;gap:8px;padding:7px 12px;color:#dcd4ff;
      background:rgba(139,92,246,.12);border:1px solid rgba(180,154,255,.25);border-radius:999px;
      font-size:.78rem;font-weight:800;
    }
    .pulse{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 0 5px rgba(79,224,161,.12),0 0 13px var(--green)}
    .hero h1{max-width:740px;margin:19px 0;font-size:clamp(2.55rem,5vw,4.5rem);line-height:1.1;font-weight:900;letter-spacing:-.065em}
    .hero p{max-width:620px;margin:0;color:var(--muted);font-size:1.08rem}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:29px}
    .hero-proof{display:flex;flex-wrap:wrap;gap:18px;margin-top:28px;color:var(--muted);font-size:.82rem}
    .hero-proof span{display:flex;align-items:center;gap:7px}
    .hero-proof i{color:var(--green)}
    .hero-visual{position:relative;min-height:442px}
    .screen-card{
      position:absolute;inset:0 0 0 28px;overflow:hidden;border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-lg);
      box-shadow:var(--shadow-hover);background:var(--panel);
    }
    .screen-card img{width:100%;height:100%;object-fit:cover;opacity:.72}
    .screen-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,8,19,.05),rgba(6,8,19,.88))}
    .visual-top{position:absolute;z-index:2;top:20px;left:50px;right:20px;display:flex;justify-content:space-between;align-items:center}
    .live-chip,.quality-chip{
      padding:6px 10px;border-radius:8px;color:#fff;background:rgba(8,9,20,.68);border:1px solid rgba(255,255,255,.16);
      backdrop-filter:blur(8px);font-size:.71rem;font-weight:800;letter-spacing:.05em
    }
    .live-chip i{color:var(--pink);margin-right:5px}
    .quality-chip{color:#77f5ed}
    .visual-copy{position:absolute;z-index:2;left:50px;right:34px;bottom:28px}
    .visual-copy small{color:#9eeff2;font-weight:800;letter-spacing:.08em}
    .visual-copy h2{margin:5px 0 0;font-size:1.55rem;font-weight:800}
    .floating-card{
      position:absolute;z-index:3;left:0;bottom:35px;width:178px;padding:16px;
      background:rgba(23,26,46,.93);border:1px solid rgba(255,255,255,.14);border-radius:17px;
      box-shadow:var(--shadow);backdrop-filter:blur(14px);
    }
    .floating-card .mini-icon{color:var(--cyan);font-size:1.15rem}
    .floating-card strong{display:block;margin-top:6px;font-size:1.45rem;line-height:1}
    .floating-card span{font-size:.72rem;color:var(--muted)}

    .ticker-wrap{padding-bottom:28px}
    .ticker{
      display:flex;align-items:center;gap:20px;padding:14px 18px;overflow:hidden;
      background:rgba(255,255,255,.035);border:1px solid var(--line);border-radius:15px;
    }
    .ticker-label{flex:0 0 auto;color:var(--cyan);font-weight:900;font-size:.77rem;letter-spacing:.08em}
    .ticker-text{overflow:hidden;white-space:nowrap;color:var(--muted);font-size:.88rem;text-overflow:ellipsis}
    .ticker-dot{display:inline-block;margin:0 12px;color:var(--pink)}

    .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:44px}
    .feature-card{
      min-height:230px;padding:28px;position:relative;overflow:hidden;
      background:linear-gradient(145deg,rgba(27,31,53,.94),rgba(16,18,33,.9));
      border:1px solid var(--line);border-radius:var(--radius);transition:var(--transition);
    }
    .feature-card:hover{transform:translateY(-7px);border-color:rgba(180,154,255,.45);box-shadow:var(--shadow)}
    .feature-card::after{content:"";position:absolute;width:130px;height:130px;right:-45px;bottom:-55px;border-radius:50%;background:rgba(139,92,246,.12)}
    .feature-icon{width:47px;height:47px;display:grid;place-items:center;margin-bottom:21px;color:#fff;border-radius:14px;font-size:1.15rem;background:linear-gradient(135deg,#6c4ee8,#9b70ff)}
    .feature-card:nth-child(2) .feature-icon{background:linear-gradient(135deg,#087eaf,#23d3dd)}
    .feature-card:nth-child(3) .feature-icon{background:linear-gradient(135deg,#bf376e,#ff72b2)}
    .feature-card h3{font-size:1.16rem;font-weight:800}
    .feature-card p{margin:9px 0 0;color:var(--muted);font-size:.9rem}

    .dark-stage{background:linear-gradient(180deg,rgba(255,255,255,.018),rgba(255,255,255,.035));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .content-grid{display:grid;grid-template-columns:1.24fr .76fr;gap:22px;margin-top:43px}
    .showcase-card{
      overflow:hidden;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);transition:var(--transition)
    }
    .showcase-card:hover{transform:translateY(-4px);border-color:rgba(39,217,231,.38);box-shadow:var(--shadow)}
    .showcase-image{height:255px;position:relative;overflow:hidden}
    .showcase-image img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
    .showcase-card:hover .showcase-image img{transform:scale(1.06)}
    .showcase-image::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(8,9,20,.82))}
    .play-button{
      position:absolute;z-index:1;left:22px;bottom:18px;width:49px;height:49px;display:grid;place-items:center;
      color:#fff;background:rgba(139,92,246,.88);border:1px solid rgba(255,255,255,.28);border-radius:50%;box-shadow:0 8px 20px rgba(0,0,0,.3)
    }
    .showcase-body{padding:21px 23px 23px}
    .content-meta{display:flex;align-items:center;gap:9px;color:var(--muted-2);font-size:.75rem}
    .content-meta .tag{color:#bfeff1}
    .showcase-body h3{margin:8px 0 7px;font-size:1.22rem;font-weight:800}
    .showcase-body p{margin:0;color:var(--muted);font-size:.88rem}
    .rank-list{padding:12px 18px 15px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)}
    .rank-head{display:flex;justify-content:space-between;align-items:center;padding:11px 3px 14px;border-bottom:1px solid var(--line)}
    .rank-head h3{margin:0;font-size:1.05rem;font-weight:800}
    .rank-head span{color:var(--cyan);font-size:.75rem;font-weight:800}
    .rank-item{display:flex;align-items:center;gap:12px;padding:15px 3px;border-bottom:1px solid rgba(255,255,255,.07);transition:var(--transition)}
    .rank-item:last-child{border:0}
    .rank-item:hover{padding-left:7px;background:rgba(255,255,255,.025)}
    .rank-num{width:24px;font-size:.85rem;font-weight:900;color:var(--muted-2)}
    .rank-item:nth-child(2) .rank-num{color:var(--warning)}
    .rank-item:nth-child(3) .rank-num{color:#d5d8e0}
    .rank-item:nth-child(4) .rank-num{color:#d69b68}
    .rank-poster{width:38px;height:48px;overflow:hidden;border-radius:7px;background:#252942}
    .rank-poster img{width:100%;height:100%;object-fit:cover}
    .rank-copy{min-width:0;flex:1}
    .rank-copy strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.88rem}
    .rank-copy small{color:var(--muted-2);font-size:.73rem}
    .rank-score{color:var(--warning);font-size:.78rem;font-weight:800}

    .stat-shell{margin-top:44px;padding:10px;background:linear-gradient(120deg,rgba(139,92,246,.14),rgba(39,217,231,.06));border:1px solid var(--line);border-radius:var(--radius-lg)}
    .stat-grid{display:grid;grid-template-columns:repeat(4,1fr);background:rgba(9,10,22,.58);border-radius:21px;overflow:hidden}
    .stat-item{padding:29px 25px;border-right:1px solid var(--line)}
    .stat-item:last-child{border:0}
    .stat-number{font-size:2.1rem;line-height:1;font-weight:900;letter-spacing:-.06em}
    .stat-number span{color:var(--cyan);font-size:1.15rem}
    .stat-item p{margin:9px 0 0;color:var(--muted);font-size:.83rem}

    .journey-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:58px;align-items:center}
    .journey-orbit{min-height:390px;position:relative;display:grid;place-items:center}
    .orbit-circle{width:310px;height:310px;border:1px solid rgba(180,154,255,.25);border-radius:50%;position:absolute}
    .orbit-circle::before{content:"";position:absolute;inset:24px;border:1px dashed rgba(39,217,231,.27);border-radius:50%}
    .orbit-core{width:126px;height:126px;display:grid;place-items:center;text-align:center;border-radius:50%;font-size:1rem;font-weight:900;background:linear-gradient(145deg,#2a1b62,#0b5c72);border:1px solid rgba(255,255,255,.2);box-shadow:0 0 60px rgba(102,69,234,.45)}
    .orbit-node{position:absolute;display:flex;align-items:center;justify-content:center;width:58px;height:58px;border-radius:50%;color:#fff;background:#1c2038;border:1px solid var(--line-strong);box-shadow:var(--shadow)}
    .orbit-node.one{top:23px;left:50%;transform:translateX(-50%);color:var(--cyan)}
    .orbit-node.two{bottom:62px;left:19px;color:var(--pink)}
    .orbit-node.three{bottom:62px;right:19px;color:var(--warning)}
    .journey-list{display:grid;gap:13px;margin-top:30px}
    .journey-item{display:flex;gap:16px;padding:16px 17px;background:rgba(255,255,255,.025);border:1px solid var(--line);border-radius:15px;transition:var(--transition)}
    .journey-item:hover{background:rgba(139,92,246,.09);border-color:rgba(180,154,255,.35);transform:translateX(4px)}
    .journey-index{flex:0 0 30px;width:30px;height:30px;display:grid;place-items:center;color:#cbbfff;background:rgba(139,92,246,.16);border-radius:9px;font-size:.78rem;font-weight:900}
    .journey-item h3{margin:0 0 3px;font-size:.98rem;font-weight:800}
    .journey-item p{margin:0;color:var(--muted);font-size:.83rem}

    .notice-panel{height:100%;padding:29px;background:linear-gradient(150deg,rgba(18,52,69,.65),rgba(25,27,51,.88));border:1px solid rgba(39,217,231,.23);border-radius:var(--radius)}
    .notice-panel h3{margin:13px 0 10px;font-size:1.35rem;font-weight:800}
    .notice-panel p{color:var(--muted);font-size:.9rem}
    .notice-icon{color:var(--cyan);font-size:1.5rem}
    .notice-list{margin:21px 0 0;padding:0;list-style:none}
    .notice-list li{display:flex;gap:9px;padding:9px 0;color:#c9cce0;border-bottom:1px solid rgba(255,255,255,.08);font-size:.84rem}
    .notice-list li:last-child{border:0}
    .notice-list i{margin-top:5px;color:var(--green);font-size:.67rem}
    .faq-accordion .accordion-item{margin-bottom:11px;overflow:hidden;color:var(--text);background:var(--panel);border:1px solid var(--line)!important;border-radius:14px!important}
    .faq-accordion .accordion-button{padding:18px 19px;color:var(--text);background:transparent;font-size:.96rem;font-weight:800;box-shadow:none!important}
    .faq-accordion .accordion-button:not(.collapsed){color:#dcd4ff;background:rgba(139,92,246,.1)}
    .faq-accordion .accordion-button::after{filter:invert(1);opacity:.75}
    .faq-accordion .accordion-body{padding:0 19px 18px;color:var(--muted);font-size:.89rem}

    .cta-section{padding:0 0 105px}
    .cta-box{
      position:relative;overflow:hidden;padding:54px 55px;border:1px solid rgba(180,154,255,.35);border-radius:var(--radius-lg);
      background:linear-gradient(120deg,#2d1b70 0%,#171b40 51%,#0b526a 140%);
      box-shadow:var(--shadow);
    }
    .cta-box::before,.cta-box::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
    .cta-box::before{width:280px;height:280px;right:-90px;top:-120px;background:rgba(39,217,231,.2)}
    .cta-box::after{width:220px;height:220px;left:33%;bottom:-170px;background:rgba(255,95,168,.17)}
    .cta-content{position:relative;z-index:1;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta-box h2{max-width:670px;margin:8px 0 8px;font-size:clamp(1.75rem,3.2vw,2.7rem);line-height:1.2;font-weight:900;letter-spacing:-.045em}
    .cta-box p{max-width:630px;margin:0;color:#d1d2e9}
    .cta-actions{display:flex;flex:0 0 auto;gap:10px;flex-wrap:wrap}
    .cta-box .btn-outline-custom{background:rgba(8,9,20,.2)}

    footer{padding:62px 0 26px;background:#060710;border-top:1px solid var(--line)}
    .footer-grid{display:grid;grid-template-columns:1.25fr .75fr .75fr;gap:40px;padding-bottom:42px}
    .footer-brand .brand{max-width:340px}
    .footer-brand p{max-width:410px;margin:16px 0 0;color:var(--muted);font-size:.87rem}
    .footer-title{margin:4px 0 13px;color:#e7e8f3;font-size:.86rem;font-weight:800}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:var(--muted);font-size:.85rem;transition:var(--transition)}
    .footer-links a:hover{color:var(--cyan);transform:translateX(3px)}
    .footer-bottom{display:flex;justify-content:space-between;gap:16px;padding-top:22px;color:var(--muted-2);border-top:1px solid var(--line);font-size:.76rem}
    .footer-bottom a{color:#969bb6}
    .footer-bottom a:hover{color:var(--primary-light)}

    @media (max-width:1024px){
      .hero{padding-top:75px}.hero-grid{gap:32px}.hero-visual{min-height:400px}
      .content-grid,.journey-grid{gap:28px}.section{padding:84px 0}
      .brand{max-width:245px;font-size:.83rem}.command-search{width:155px}
      .command-search:focus-within{width:170px}
    }
    @media (max-width:991px){
      .navbar-collapse{margin-top:12px;padding:14px;background:rgba(20,23,42,.97);border:1px solid var(--line);border-radius:16px}
      .navbar-nav{padding:0 0 8px}.nav-link{padding:.65rem .25rem!important}.nav-link::after{left:.25rem;right:auto;width:28px}
      .nav-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding-top:10px;border-top:1px solid var(--line)}
      .command-search{width:230px}.command-search:focus-within{width:230px}
      .hero-grid,.journey-grid{grid-template-columns:1fr}.hero-copy{max-width:780px}.hero-visual{min-height:440px;max-width:690px;width:100%;margin:0 auto}
      .feature-grid{grid-template-columns:repeat(3,1fr)}.content-grid{grid-template-columns:1fr}.rank-list{max-width:690px}
      .journey-orbit{order:2}.stat-grid{grid-template-columns:repeat(2,1fr)}.stat-item:nth-child(2){border-right:0}.stat-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .cta-content{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1.2fr 1fr 1fr}
    }
    @media (max-width:767px){
      .section{padding:66px 0}.section-sm{padding:57px 0}.hero{padding:62px 0 53px}.hero h1{font-size:clamp(2.22rem,10vw,3.2rem)}
      .hero p{font-size:.98rem}.hero-visual{min-height:350px}.screen-card{left:12px}.visual-top{left:31px}.visual-copy{left:31px}.floating-card{left:0;bottom:20px;width:155px;padding:13px}
      .feature-grid{grid-template-columns:1fr}.feature-card{min-height:0}.content-grid{margin-top:31px}.stat-shell{margin-top:32px}
      .section-title{font-size:2rem}.cta-box{padding:37px 28px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}
      .notice-panel{margin-bottom:20px}
    }
    @media (max-width:520px){
      .container{padding-left:18px;padding-right:18px}.navbar{min-height:68px}.brand{max-width:225px;font-size:.75rem}.brand-mark{width:32px;height:32px;flex-basis:32px}
      .command-search{width:100%;order:3}.nav-actions{display:grid;grid-template-columns:1fr}.nav-actions .btn{width:100%}
      .hero-actions{display:grid}.hero-actions .btn{width:100%}.hero-proof{display:grid;gap:9px}.hero-visual{min-height:300px}.screen-card{left:0;border-radius:20px}.visual-top{left:18px;right:15px;top:14px}.visual-copy{left:19px;right:17px;bottom:17px}.visual-copy h2{font-size:1.16rem}.floating-card{display:none}
      .showcase-image{height:205px}.showcase-body{padding:18px}.stat-grid{grid-template-columns:1fr}.stat-item,.stat-item:nth-child(2){border-right:0;border-bottom:1px solid var(--line)}.stat-item:last-child{border-bottom:0}
      .journey-orbit{min-height:285px}.orbit-circle{width:235px;height:235px}.orbit-core{width:106px;height:106px}.orbit-node{width:47px;height:47px}.orbit-node.two{bottom:39px;left:4px}.orbit-node.three{bottom:39px;right:4px}
      .cta-section{padding-bottom:65px}.cta-box{padding:31px 20px;border-radius:22px}.cta-actions{display:grid;width:100%}.cta-actions .btn{width:100%}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{display:block;line-height:1.8}
    }