/* roulang page: index */
:root{
      --ink:#101721;
      --night:#172231;
      --lime:#d9ff4a;
      --amber:#ffb84a;
      --mist:#eff3f5;
      --cloud:#f8fafb;
      --white:#ffffff;
      --text:#1c2936;
      --muted:#687684;
      --line:rgba(26,42,57,.12);
      --radius-xl:28px;
      --radius-lg:20px;
      --radius-md:14px;
      --shadow-card:0 18px 42px rgba(18,31,44,.09);
      --shadow-heavy:0 30px 80px rgba(5,15,24,.24);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      line-height:1.65;
      background:var(--cloud);
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:var(--lime);color:var(--ink)}
    .site-shell{position:relative;overflow:hidden}
    .container-wide{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .nav-wrap{
      position:absolute;
      top:22px;
      left:50%;
      z-index:50;
      width:min(1180px,calc(100% - 40px));
      transform:translateX(-50%);
    }
    .pill-nav{
      display:flex;
      align-items:center;
      justify-content:space-between;
      min-height:68px;
      padding:10px 12px 10px 18px;
      color:#fff;
      background:rgba(18,31,44,.74);
      border:1px solid rgba(255,255,255,.17);
      border-radius:999px;
      box-shadow:0 14px 35px rgba(0,0,0,.19);
      backdrop-filter:blur(18px);
    }
    .brand{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:0;
      font-weight:800;
      letter-spacing:-.02em;
    }
    .brand-mark{
      display:grid;
      width:38px;
      height:38px;
      flex:0 0 38px;
      place-items:center;
      color:var(--ink);
      background:var(--lime);
      border-radius:12px;
      box-shadow:inset 0 -3px 0 rgba(0,0,0,.13);
    }
    .brand-copy{max-width:360px;font-size:14px;line-height:1.25}
    .nav-link{
      display:inline-flex;
      align-items:center;
      min-height:42px;
      padding:0 18px;
      color:rgba(255,255,255,.72);
      font-size:14px;
      font-weight:700;
      border-radius:999px;
      transition:color .2s ease,background .2s ease,transform .2s ease;
    }
    .nav-link:hover,.nav-link.active{color:var(--ink);background:var(--lime)}
    .nav-link:focus-visible,.button:focus-visible,.faq-toggle:focus-visible,.search-input:focus-visible{
      outline:3px solid rgba(217,255,74,.75);
      outline-offset:3px;
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:44px;
      padding:0 18px;
      color:var(--ink);
      background:var(--lime);
      border-radius:999px;
      font-size:14px;
      font-weight:800;
      transition:transform .2s ease,box-shadow .2s ease;
    }
    .nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 25px rgba(217,255,74,.24)}
    .menu-toggle{display:none;color:#fff;background:transparent;padding:8px}
    .hero{
      position:relative;
      min-height:760px;
      padding:155px 0 88px;
      color:#fff;
      background:var(--ink);
      isolation:isolate;
    }
    .hero:before{
      content:"";
      position:absolute;
      z-index:-1;
      width:600px;
      height:600px;
      top:-230px;
      right:-90px;
      background:radial-gradient(circle,rgba(217,255,74,.31) 0,rgba(217,255,74,.05) 42%,transparent 70%);
      filter:blur(4px);
    }
    .hero:after{
      content:"";
      position:absolute;
      z-index:-1;
      width:460px;
      height:460px;
      bottom:-230px;
      left:-150px;
      background:radial-gradient(circle,rgba(53,156,255,.2),transparent 66%);
    }
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      color:#e8ffc0;
      background:rgba(217,255,74,.1);
      border:1px solid rgba(217,255,74,.27);
      border-radius:999px;
      font-size:12px;
      font-weight:800;
      letter-spacing:.08em;
    }
    .pulse-dot{width:7px;height:7px;background:var(--lime);border-radius:50%;box-shadow:0 0 0 5px rgba(217,255,74,.13)}
    .hero h1{
      max-width:700px;
      margin:20px 0 20px;
      font-size:clamp(38px,5.3vw,70px);
      font-weight:900;
      line-height:1.08;
      letter-spacing:-.055em;
    }
    .hero h1 em{font-style:normal;color:var(--lime)}
    .hero-text{max-width:620px;color:rgba(255,255,255,.73);font-size:17px}
    .button-row{display:flex;flex-wrap:wrap;gap:13px;margin-top:30px}
    .button{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:52px;
      padding:0 21px;
      border-radius:14px;
      font-size:15px;
      font-weight:800;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
    }
    .button-primary{color:var(--ink);background:var(--lime);box-shadow:0 12px 30px rgba(217,255,74,.16)}
    .button-primary:hover{transform:translateY(-3px);box-shadow:0 18px 35px rgba(217,255,74,.27)}
    .button-secondary{color:#fff;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18)}
    .button-secondary:hover{background:rgba(255,255,255,.15);transform:translateY(-3px)}
    .mini-points{display:flex;flex-wrap:wrap;gap:16px;margin-top:25px;color:rgba(255,255,255,.58);font-size:13px}
    .mini-points span{display:flex;align-items:center;gap:6px}
    .mini-points i{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--lime)}
    .screen-wrap{position:relative}
    .screen-card{
      position:relative;
      overflow:hidden;
      min-height:454px;
      padding:22px;
      background:linear-gradient(145deg,#26394e,#101a26 68%);
      border:1px solid rgba(255,255,255,.17);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-heavy);
    }
    .screen-glow{position:absolute;top:-90px;right:-100px;width:270px;height:270px;background:radial-gradient(circle,rgba(217,255,74,.68),transparent 68%);filter:blur(10px)}
    .screen-top{position:relative;display:flex;align-items:center;justify-content:space-between;color:rgba(255,255,255,.68);font-size:12px}
    .screen-dots{display:flex;gap:5px}.screen-dots b{display:block;width:7px;height:7px;background:rgba(255,255,255,.34);border-radius:50%}
    .feature-poster{
      position:relative;
      display:flex;
      align-items:flex-end;
      height:270px;
      margin-top:20px;
      padding:22px;
      overflow:hidden;
      background:linear-gradient(135deg,#764c85 0%,#263c6c 48%,#162734 100%);
      border-radius:18px;
    }
    .feature-poster:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(5,12,19,.83),transparent 65%)}
    .feature-rings{position:absolute;width:280px;height:280px;right:-48px;top:-63px;border:24px solid rgba(217,255,74,.2);border-radius:50%;box-shadow:0 0 0 27px rgba(217,255,74,.08),0 0 0 60px rgba(217,255,74,.04)}
    .poster-copy{position:relative}
    .poster-copy small{color:var(--lime);font-weight:800;letter-spacing:.1em}
    .poster-copy h3{margin:5px 0 0;font-size:27px;font-weight:900;letter-spacing:-.04em}
    .program-list{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
    .program{padding:11px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.09);border-radius:12px}
    .program b{display:block;color:#fff;font-size:12px}.program span{display:block;margin-top:2px;color:rgba(255,255,255,.5);font-size:11px}
    .floating-score{
      position:absolute;
      right:-23px;
      bottom:46px;
      display:flex;
      align-items:center;
      gap:9px;
      padding:12px 15px;
      color:#fff;
      background:rgba(23,34,49,.94);
      border:1px solid rgba(255,255,255,.16);
      border-radius:14px;
      box-shadow:var(--shadow-heavy);
      backdrop-filter:blur(8px);
    }
    .floating-score strong{color:var(--lime);font-size:22px;line-height:1}.floating-score small{display:block;color:rgba(255,255,255,.55);font-size:11px}
    .section{padding:104px 0}
    .section-soft{background:var(--mist)}
    .section-dark{color:#fff;background:var(--night)}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:36px}
    .section-kicker{margin:0 0 10px;color:#78900e;font-size:12px;font-weight:900;letter-spacing:.13em}
    .section-dark .section-kicker{color:var(--lime)}
    .section-title{max-width:720px;margin:0;color:var(--ink);font-size:clamp(29px,3.5vw,47px);font-weight:900;line-height:1.16;letter-spacing:-.045em}
    .section-dark .section-title{color:#fff}
    .section-desc{max-width:370px;margin:0;color:var(--muted);font-size:15px}
    .section-dark .section-desc{color:rgba(255,255,255,.62)}
    .search-panel{
      display:flex;
      align-items:center;
      gap:12px;
      padding:10px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:18px;
      box-shadow:0 12px 30px rgba(18,31,44,.06);
    }
    .search-icon{padding-left:8px;color:#82909d}
    .search-input{width:100%;padding:8px 0;outline:none;color:var(--text);background:transparent;border:0;font-size:14px}
    .search-input::placeholder{color:#9aa5ae}
    .search-button{padding:11px 17px;color:var(--ink);white-space:nowrap;background:var(--lime);border-radius:11px;font-size:13px;font-weight:800;transition:transform .2s ease}
    .search-button:hover{transform:scale(1.03)}
    .category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:25px}
    .category-card{
      position:relative;
      min-height:175px;
      padding:22px;
      overflow:hidden;
      color:#fff;
      border-radius:var(--radius-lg);
      transition:transform .25s ease,box-shadow .25s ease;
    }
    .category-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-card)}
    .category-card:nth-child(1){background:linear-gradient(130deg,#793e69,#36295c)}
    .category-card:nth-child(2){background:linear-gradient(130deg,#19577b,#182b56)}
    .category-card:nth-child(3){background:linear-gradient(130deg,#8d5c27,#3c2939)}
    .category-card:nth-child(4){background:linear-gradient(130deg,#2f7467,#173d4d)}
    .category-num{position:absolute;right:16px;top:10px;color:rgba(255,255,255,.18);font-size:64px;font-weight:900;line-height:1}
    .category-card h3{position:relative;margin:54px 0 4px;font-size:20px;font-weight:900}.category-card p{position:relative;margin:0;color:rgba(255,255,255,.67);font-size:13px}
    .content-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}
    .spotlight-card{
      position:relative;
      min-height:405px;
      padding:36px;
      overflow:hidden;
      color:#fff;
      background:linear-gradient(125deg,#273d55,#1b243d 55%,#454172);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-card);
    }
    .spotlight-card:after{content:"";position:absolute;right:-75px;bottom:-120px;width:380px;height:380px;border:48px solid rgba(217,255,74,.13);border-radius:50%;box-shadow:0 0 0 40px rgba(217,255,74,.05)}
    .spotlight-card .badge{position:relative}.spotlight-card h3{position:relative;max-width:470px;margin:18px 0 14px;font-size:clamp(28px,3vw,42px);font-weight:900;line-height:1.13;letter-spacing:-.04em}.spotlight-card p{position:relative;max-width:490px;color:rgba(255,255,255,.68)}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;font-size:12px;font-weight:800}
    .badge-lime{color:#405006;background:var(--lime)}.badge-light{color:#fff;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.15)}
    .meta-row{position:relative;display:flex;flex-wrap:wrap;gap:16px;margin-top:25px;color:rgba(255,255,255,.68);font-size:13px}
    .rank-panel{padding:10px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);box-shadow:var(--shadow-card)}
    .rank-title{padding:14px 14px 8px;font-size:16px;font-weight:900}
    .rank-item{display:grid;grid-template-columns:32px 1fr auto;align-items:center;gap:10px;padding:15px 14px;border-top:1px solid var(--line);transition:background .2s ease}
    .rank-item:hover{background:#f8faf0}
    .rank-no{font-size:19px;font-weight:900;color:#8c99a3}.rank-item:first-of-type .rank-no{color:#d59919}.rank-name b{display:block;font-size:14px}.rank-name span{display:block;margin-top:2px;color:var(--muted);font-size:12px}.rank-score{color:#677b10;font-size:13px;font-weight:900}
    .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .metric-card{padding:24px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:18px;transition:transform .2s ease,background .2s ease}
    .metric-card:hover{transform:translateY(-5px);background:rgba(255,255,255,.1)}
    .metric-card strong{display:block;color:var(--lime);font-size:37px;font-weight:900;line-height:1}.metric-card span{display:block;margin-top:9px;color:rgba(255,255,255,.63);font-size:13px}
    .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .feature-card{padding:28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:0 8px 24px rgba(18,31,44,.04);transition:transform .25s ease,box-shadow .25s ease}
    .feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-card)}
    .icon-box{display:grid;width:48px;height:48px;place-items:center;color:var(--ink);background:var(--lime);border-radius:15px}
    .feature-card h3{margin:20px 0 8px;font-size:18px;font-weight:900}.feature-card p{margin:0;color:var(--muted);font-size:14px}
    .flow-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step}
    .flow-item{position:relative;padding:28px 26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg)}
    .flow-item:before{counter-increment:step;content:"0" counter(step);display:block;margin-bottom:34px;color:#a7ba38;font-size:13px;font-weight:900;letter-spacing:.12em}
    .flow-item h3{margin:0 0 8px;font-size:20px;font-weight:900}.flow-item p{margin:0;color:var(--muted);font-size:14px}
    .flow-item:not(:last-child):after{content:"";position:absolute;right:-14px;top:50%;z-index:2;width:28px;height:1px;background:#a7ba38}
    .faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:68px;align-items:start}
    .faq-list{display:grid;gap:12px}
    .faq-item{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:16px}
    .faq-toggle{display:flex;width:100%;align-items:center;justify-content:space-between;gap:15px;padding:19px 20px;color:var(--text);text-align:left;background:#fff;font-size:15px;font-weight:800}
    .faq-plus{display:grid;width:25px;height:25px;flex:0 0 25px;place-items:center;color:#637310;background:#eff7c6;border-radius:50%;font-size:18px;transition:transform .2s ease}
    .faq-answer{display:none;padding:0 20px 19px;color:var(--muted);font-size:14px}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-plus{transform:rotate(45deg)}
    .cta-box{
      position:relative;
      overflow:hidden;
      padding:58px;
      color:#fff;
      background:linear-gradient(120deg,#25374a,#111d29);
      border-radius:var(--radius-xl);
    }
    .cta-box:before{content:"";position:absolute;right:-70px;top:-200px;width:500px;height:500px;border:65px solid rgba(217,255,74,.14);border-radius:50%;box-shadow:0 0 0 45px rgba(217,255,74,.06)}
    .cta-content{position:relative;display:flex;align-items:center;justify-content:space-between;gap:35px}.cta-content h2{max-width:660px;margin:0;font-size:clamp(29px,4vw,48px);font-weight:900;line-height:1.16;letter-spacing:-.045em}.cta-content p{max-width:600px;margin:15px 0 0;color:rgba(255,255,255,.65)}
    footer{padding:58px 0 28px;color:rgba(255,255,255,.64);background:#0b1119}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.11)}
    .footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:900}.footer-brand .brand-mark{width:34px;height:34px;flex-basis:34px;border-radius:10px}.footer-brand span:last-child{font-size:16px}
    .footer-copy{max-width:570px;margin:15px 0 0;font-size:13px;line-height:1.8}
    .footer-note{padding:21px 0 0;color:rgba(255,255,255,.42);font-size:12px}
    .footer-note strong{color:rgba(255,255,255,.65)}
    @media (max-width:1024px){
      .hero-grid{grid-template-columns:1fr;gap:40px}.hero{padding-bottom:70px}.screen-wrap{max-width:620px;margin:0 auto}.category-grid{grid-template-columns:repeat(2,1fr)}.metric-grid{grid-template-columns:repeat(2,1fr)}.faq-wrap{gap:35px}.cta-box{padding:45px}
    }
    @media (max-width:768px){
      .nav-wrap{top:12px;width:min(100% - 24px,1180px)}.pill-nav{min-height:59px;padding:8px 10px 8px 13px}.brand-copy{max-width:230px;font-size:12px}.desktop-links,.nav-cta{display:none}.menu-toggle{display:block}.mobile-links{display:none;position:absolute;top:68px;left:0;right:0;padding:10px;background:rgba(16,23,33,.96);border:1px solid rgba(255,255,255,.13);border-radius:18px;box-shadow:var(--shadow-heavy)}.mobile-links.show{display:grid}.mobile-links .nav-link{justify-content:center}.hero{min-height:auto;padding:129px 0 65px}.hero-text{font-size:15px}.section{padding:72px 0}.section-head{display:block;margin-bottom:27px}.section-desc{margin-top:14px}.content-grid,.faq-wrap{grid-template-columns:1fr}.feature-grid,.flow-grid{grid-template-columns:1fr}.flow-item:not(:last-child):after{top:auto;bottom:-11px;right:50%;width:1px;height:22px}.cta-content{display:block}.cta-content .button-row{margin-top:25px}.footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      .container-wide{width:min(100% - 28px,1180px)}.brand-mark{width:32px;height:32px;flex-basis:32px}.brand-copy{max-width:205px;font-size:11px}.hero h1{font-size:38px}.button-row{display:grid;grid-template-columns:1fr}.button{width:100%}.screen-card{min-height:400px;padding:15px}.feature-poster{height:236px;padding:17px}.program-list{gap:7px}.program{padding:9px 7px}.floating-score{right:10px;bottom:20px}.category-grid,.metric-grid{grid-template-columns:1fr}.category-card{min-height:150px}.spotlight-card{min-height:365px;padding:25px}.search-panel{gap:6px;padding:7px}.search-button{padding:10px 12px}.cta-box{padding:33px 25px;border-radius:22px}.section-title{font-size:30px}
    }