/* roulang page: index */
:root{
      --navy:#102a43;
      --blue:#1769aa;
      --cyan:#21b6c7;
      --sky:#eaf6fb;
      --ink:#142534;
      --muted:#647789;
      --line:#dce8ef;
      --paper:#ffffff;
      --soft:#f5f9fb;
      --orange:#f29d49;
      --green:#2fb477;
      --radius:20px;
      --radius-sm:12px;
      --shadow:0 18px 45px rgba(25,62,90,.10);
      --shadow-sm:0 8px 24px rgba(25,62,90,.08);
      --container:1220px;
      --ease:all .28s ease;
    }
    *{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:1.75;
      font-size:16px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--blue);
      font-size:13px;
      font-weight:800;
      letter-spacing:.12em;
      text-transform:uppercase;
    }
    .eyebrow:before{
      content:"";
      width:24px;
      height:2px;
      background:var(--cyan);
      display:inline-block;
    }
    h1,h2,h3,h4{margin:0;color:var(--navy);line-height:1.25;font-weight:800}
    h1{font-size:clamp(38px,5vw,68px);letter-spacing:-.045em}
    h2{font-size:clamp(28px,3.2vw,42px);letter-spacing:-.03em}
    h3{font-size:21px}
    p{margin:0;color:var(--muted)}
    .section{padding:94px 0}
    .section-head{max-width:720px;margin-bottom:38px}
    .section-head h2{margin:12px 0 14px}
    .section-head p{font-size:17px}
    .text-link{
      color:var(--blue);
      font-weight:800;
      display:inline-flex;
      gap:7px;
      align-items:center;
    }
    .text-link:hover{color:var(--cyan);gap:11px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:0 21px;
      border-radius:12px;
      border:1px solid transparent;
      font-weight:800;
      transition:var(--ease);
      white-space:nowrap;
    }
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 10px 22px rgba(23,105,170,.20)}
    .btn-primary:hover{background:var(--navy);transform:translateY(-2px);color:#fff}
    .btn-secondary{background:#fff;color:var(--blue);border-color:#bad8e5}
    .btn-secondary:hover{border-color:var(--blue);background:var(--sky);color:var(--navy)}
    .btn-light{background:#fff;color:var(--navy)}
    .btn-light:hover{background:#dff5f7;transform:translateY(-2px)}
    :focus-visible{outline:3px solid rgba(33,182,199,.45);outline-offset:3px}
    .site-header{
      position:sticky;top:0;z-index:30;
      background:rgba(255,255,255,.93);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(220,232,239,.85);
    }
    .nav-shell{height:76px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;min-width:190px}
    .brand-mark{
      width:38px;height:38px;border-radius:12px;
      display:grid;place-items:center;color:#fff;font-size:18px;font-weight:900;
      background:linear-gradient(145deg,var(--blue),var(--cyan));
      box-shadow:0 8px 16px rgba(23,105,170,.18);
    }
    .brand-name{font-size:21px;font-weight:900;letter-spacing:-.04em;color:var(--navy)}
    .nav-links{display:flex;align-items:center;gap:4px;flex:1;overflow-x:auto}
    .nav-links::-webkit-scrollbar{display:none}
    .nav-links a{
      padding:10px 12px;border-radius:10px;color:#586d7d;font-size:14px;
      white-space:nowrap;font-weight:700;
    }
    .nav-links a:hover,.nav-links a.active{background:var(--sky);color:var(--blue)}
    .nav-tools{display:flex;align-items:center;gap:14px}
    .status{display:flex;align-items:center;gap:7px;color:#628091;font-size:13px;white-space:nowrap}
    .status i{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px rgba(47,180,119,.12)}
    .menu-toggle{display:none;background:none;border:0;color:var(--navy);font-size:24px}
    .hero{
      min-height:710px;
      display:flex;align-items:center;
      background:
        linear-gradient(90deg,rgba(11,38,63,.96) 0%,rgba(15,61,88,.88) 50%,rgba(15,61,88,.42) 100%),
        url("/assets/images/backpic/back-1.webp") center/cover;
      color:#fff;
      position:relative;isolation:isolate;
    }
    .hero:after{
      content:"";position:absolute;inset:auto 0 0;height:120px;z-index:-1;
      background:linear-gradient(transparent,#fff);
    }
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
    .hero-copy{padding:45px 0 75px}
    .hero .eyebrow{color:#8be1e4}
    .hero h1{color:#fff;max-width:730px;margin:16px 0 22px}
    .hero-desc{color:#d9edf2;font-size:18px;max-width:680px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin:30px 0 30px}
    .hero-meta{display:flex;flex-wrap:wrap;gap:22px;color:#d9edf2;font-size:14px}
    .hero-meta strong{display:block;color:#fff;font-size:24px;line-height:1.1}
    .hero-stage{position:relative;min-height:520px;display:flex;align-items:center;justify-content:center}
    .stage-orbit{
      width:420px;height:420px;border:1px solid rgba(139,225,228,.28);
      border-radius:50%;position:absolute;right:10px;top:50px;
    }
    .stage-orbit:before,.stage-orbit:after{
      content:"";position:absolute;border:1px solid rgba(139,225,228,.2);border-radius:50%;
    }
    .stage-orbit:before{inset:42px}
    .stage-orbit:after{inset:94px}
    .score-panel{
      width:330px;position:relative;z-index:2;background:rgba(255,255,255,.97);
      border-radius:24px;padding:22px;color:var(--ink);box-shadow:0 30px 70px rgba(0,0,0,.22);
      transform:rotate(2deg);
    }
    .score-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
    .live-badge{font-size:11px;color:#fff;background:#e06e62;border-radius:20px;padding:4px 9px;font-weight:800}
    .score-date{font-size:12px;color:var(--muted)}
    .teams{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:center;text-align:center}
    .team-logo{width:52px;height:52px;border-radius:16px;background:var(--sky);display:grid;place-items:center;margin:0 auto 7px;font-weight:900;color:var(--blue)}
    .team-name{font-size:13px;font-weight:800;color:var(--navy)}
    .score-number{font-size:38px;font-weight:900;color:var(--navy);line-height:1}
    .score-number small{font-size:18px;color:#9aacb7}
    .panel-divider{height:1px;background:var(--line);margin:20px 0}
    .metric-row{display:flex;justify-content:space-between;gap:12px;margin:10px 0;font-size:12px}
    .metric-label{color:var(--muted)}
    .metric-bar{height:7px;background:#eaf0f3;border-radius:10px;overflow:hidden;flex:1;margin-top:7px}
    .metric-bar span{height:100%;display:block;background:linear-gradient(90deg,var(--blue),var(--cyan));border-radius:10px}
    .floating-note{
      position:absolute;z-index:3;right:-4px;bottom:82px;padding:15px 18px;background:#fff;
      border-radius:15px;box-shadow:var(--shadow);color:var(--navy);font-size:13px;font-weight:800;
    }
    .floating-note span{display:block;color:var(--green);font-size:22px;line-height:1.2}
    .trust-strip{margin-top:-36px;position:relative;z-index:4}
    .trust-inner{
      background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-sm);
      padding:21px 28px;display:flex;align-items:center;justify-content:space-between;gap:25px;
    }
    .trust-inner p{font-size:14px}
    .trust-items{display:flex;gap:28px;flex-wrap:wrap}
    .trust-item{display:flex;align-items:center;gap:8px;color:var(--navy);font-size:14px;font-weight:800}
    .trust-item b{width:24px;height:24px;border-radius:8px;background:#dff5f7;color:var(--blue);display:grid;place-items:center;font-size:12px}
    .intro{background:var(--soft)}
    .intro-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:70px;align-items:start}
    .intro-copy p{font-size:17px;margin-top:20px}
    .intro-copy .text-link{margin-top:22px}
    .intro-visual{display:grid;grid-template-columns:1.1fr .9fr;gap:17px}
    .visual-card{border-radius:18px;overflow:hidden;position:relative;min-height:240px;box-shadow:var(--shadow-sm)}
    .visual-card img{width:100%;height:100%;object-fit:cover}
    .visual-card.large{height:370px}
    .visual-card.small{height:175px}
    .visual-card .caption{position:absolute;left:0;right:0;bottom:0;padding:28px 18px 16px;background:linear-gradient(transparent,rgba(10,35,53,.85));color:#fff;font-weight:800}
    .visual-stack{display:flex;flex-direction:column;gap:17px}
    .ladder{background:#f6fbfc}
    .ladder-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:34px;align-items:stretch}
    .ladder-steps{display:flex;align-items:flex-end;gap:10px;height:310px;padding:15px 5px 0}
    .ladder-step{flex:1;min-width:0;border-radius:16px 16px 5px 5px;padding:17px 13px;display:flex;flex-direction:column;justify-content:space-between;color:#fff;box-shadow:var(--shadow-sm)}
    .ladder-step:nth-child(1){height:42%;background:#9bbdc7}
    .ladder-step:nth-child(2){height:57%;background:#4aa7ba}
    .ladder-step:nth-child(3){height:74%;background:#1975a9}
    .ladder-step:nth-child(4){height:92%;background:#102a43}
    .ladder-step small{opacity:.85}
    .ladder-step strong{font-size:24px}
    .ladder-info{padding:28px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-sm)}
    .ladder-info h3{margin-bottom:13px}
    .ladder-info p{font-size:15px}
    .check-list{list-style:none;margin:20px 0 0;padding:0}
    .check-list li{display:flex;gap:10px;margin:10px 0;color:#405c6d;font-size:14px}
    .check-list li:before{content:"✓";color:var(--green);font-weight:900}
    .packages{background:#fff}
    .package-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .package{
      padding:28px;border:1px solid var(--line);border-radius:18px;background:#fff;position:relative;transition:var(--ease)
    }
    .package:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
    .package.featured{border:2px solid var(--blue);box-shadow:var(--shadow);padding:27px}
    .package-tag{position:absolute;right:18px;top:18px;font-size:11px;border-radius:20px;background:#dff5f7;color:var(--blue);padding:5px 10px;font-weight:900}
    .package h3{margin-bottom:8px}
    .package .package-desc{font-size:14px;min-height:52px}
    .package-price{margin:20px 0;font-size:31px;color:var(--navy);font-weight:900}
    .package-price small{font-size:13px;color:var(--muted);font-weight:500}
    .package .btn{width:100%;margin-top:18px}
    .feature-list{list-style:none;padding:0;margin:16px 0 0;border-top:1px solid var(--line);padding-top:15px}
    .feature-list li{padding:8px 0;color:#526979;font-size:14px;border-bottom:1px dashed #e7eef2}
    .feature-list li:last-child{border:0}
    .feature-list li:before{content:"•";color:var(--cyan);font-weight:900;margin-right:8px}
    .feature-zone{background:var(--navy);color:#fff}
    .feature-zone h2,.feature-zone h3{color:#fff}
    .feature-zone p{color:#bcd2dc}
    .feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
    .feature-card{padding:24px 21px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.055);border-radius:16px;transition:var(--ease)}
    .feature-card:hover{background:rgba(255,255,255,.11);transform:translateY(-4px)}
    .feature-icon{width:42px;height:42px;border-radius:13px;background:#1d5878;color:#8be1e4;display:grid;place-items:center;font-weight:900;font-size:19px;margin-bottom:22px}
    .feature-card h3{font-size:18px;margin-bottom:9px}
    .feature-card p{font-size:14px}
    .stats{background:var(--soft)}
    .stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .stat{padding:25px 22px;border-left:3px solid var(--cyan);background:#fff;border-radius:0 16px 16px 0;box-shadow:var(--shadow-sm)}
    .stat strong{display:block;font-size:34px;color:var(--navy);line-height:1.1}
    .stat span{display:block;color:var(--muted);font-size:14px;margin-top:8px}
    .workflow-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
    .workflow-image{height:410px;border-radius:22px;overflow:hidden;box-shadow:var(--shadow)}
    .workflow-image img{width:100%;height:100%;object-fit:cover}
    .steps{counter-reset:flow}
    .step{position:relative;padding:0 0 26px 57px;border-left:1px solid #cfe0e7;margin-left:18px}
    .step:last-child{padding-bottom:0}
    .step:before{counter-increment:flow;content:counter(flow,decimal-leading-zero);position:absolute;left:-19px;top:0;width:38px;height:38px;border-radius:50%;background:#dff5f7;color:var(--blue);display:grid;place-items:center;font-weight:900;font-size:12px}
    .step h3{font-size:18px;margin-bottom:5px}
    .step p{font-size:14px}
    .ranking{background:#f6fbfc}
    .rank-layout{display:grid;grid-template-columns:1fr .84fr;gap:25px}
    .rank-board,.insight-board{background:#fff;border:1px solid var(--line);border-radius:18px;padding:25px;box-shadow:var(--shadow-sm)}
    .board-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
    .board-head h3{font-size:19px}
    .board-head span{font-size:12px;color:var(--blue);background:var(--sky);padding:5px 9px;border-radius:8px}
    .rank-row{display:grid;grid-template-columns:35px 1fr 70px 76px;align-items:center;gap:10px;padding:13px 0;border-bottom:1px solid #edf2f4;font-size:14px}
    .rank-row:last-child{border-bottom:0}
    .rank-num{font-weight:900;color:#9aafba}
    .rank-team{font-weight:800;color:var(--navy)}
    .rank-team small{display:block;color:var(--muted);font-size:11px;font-weight:500}
    .rank-score{text-align:right;font-weight:900;color:var(--blue)}
    .trend{font-size:11px;color:var(--green);text-align:right}
    .insight-board{background:linear-gradient(145deg,#123754,#1a6783);color:#fff;display:flex;flex-direction:column;justify-content:space-between}
    .insight-board h3{color:#fff}
    .insight-board p{color:#c8e3e9;font-size:15px;margin-top:15px}
    .quote{font-size:29px;line-height:1.35;color:#8be1e4;font-weight:900;margin:30px 0 10px}
    .topics{background:#fff}
    .topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .topic-card{min-height:210px;border-radius:18px;overflow:hidden;position:relative;box-shadow:var(--shadow-sm)}
    .topic-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
    .topic-card:hover img{transform:scale(1.06)}
    .topic-card:after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 25%,rgba(8,35,53,.88))}
    .topic-content{position:absolute;z-index:2;left:21px;right:21px;bottom:18px;color:#fff}
    .topic-content h3{color:#fff;font-size:19px;margin-bottom:6px}
    .topic-content p{color:#d4e7eb;font-size:13px}
    .news{background:var(--soft)}
    .news-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:28px}
    .news-list,.news-side{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 24px}
    .news-item{display:grid;grid-template-columns:92px 1fr 95px;gap:18px;align-items:center;padding:18px 0;border-bottom:1px solid #eaf0f2}
    .news-item:last-child{border:0}
    .news-date{font-size:13px;color:var(--blue);font-weight:800}
    .news-item h3{font-size:17px;margin-bottom:4px}
    .news-item p{font-size:13px;line-height:1.6}
    .news-item .text-link{font-size:13px;justify-self:end}
    .news-side{padding:25px}
    .news-side h3{margin-bottom:16px}
    .hot-item{display:flex;gap:13px;padding:13px 0;border-bottom:1px dashed var(--line)}
    .hot-item b{color:var(--orange);font-size:20px}
    .hot-item span{font-size:14px;color:#4c6574}
    .social{background:#fff}
    .social-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:32px;align-items:stretch}
    .social-score{padding:34px;border-radius:20px;background:var(--sky);display:flex;flex-direction:column;justify-content:center}
    .stars{color:#f2a34d;letter-spacing:4px;font-size:22px}
    .social-score strong{font-size:49px;color:var(--navy);line-height:1.1;margin:5px 0}
    .social-score p{font-size:14px}
    .voices{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}
    .voice{padding:23px;border:1px solid var(--line);border-radius:15px;background:#fff;box-shadow:var(--shadow-sm)}
    .voice p{font-size:14px;color:#496474;margin-bottom:15px}
    .voice b{font-size:13px;color:var(--navy)}
    .reward{background:#102a43;color:#fff}
    .reward h2{color:#fff}
    .reward p{color:#bdd4dc}
    .reward-layout{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
    .reward-boxes{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}
    .reward-box{min-height:190px;border-radius:17px;padding:20px;background:linear-gradient(145deg,#1a587a,#10354f);border:1px solid rgba(139,225,228,.2);display:flex;flex-direction:column;justify-content:space-between}
    .reward-box:nth-child(2){transform:translateY(-18px);background:linear-gradient(145deg,#227a8c,#174d70)}
    .reward-box:nth-child(3){transform:translateY(8px)}
    .reward-box i{font-style:normal;font-size:28px;color:#8be1e4}
    .reward-box strong{font-size:16px;color:#fff}
    .reward-box span{font-size:12px;color:#b9d9e1}
    .reward-copy p{font-size:16px;margin-top:15px}
    .progress-wrap{margin:25px 0}
    .progress-label{display:flex;justify-content:space-between;font-size:13px;color:#cfe5ea;margin-bottom:8px}
    .progress{height:9px;background:#294b60;border-radius:20px;overflow:hidden}
    .progress span{display:block;width:72%;height:100%;background:linear-gradient(90deg,var(--cyan),#8be1e4);border-radius:20px}
    .security{background:#f6fbfc}
    .security-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .security-card{padding:25px;background:#fff;border-radius:17px;border:1px solid var(--line)}
    .security-card h3{margin:12px 0 7px;font-size:18px}
    .security-card p{font-size:14px}
    .faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:54px}
    .faq-intro p{margin-top:18px;font-size:16px}
    .faq-list{display:flex;flex-direction:column;gap:10px}
    .faq-item{border:1px solid var(--line);border-radius:13px;background:#fff;overflow:hidden}
    .faq-question{width:100%;padding:18px 20px;border:0;background:transparent;text-align:left;color:var(--navy);font-weight:800;display:flex;justify-content:space-between;gap:12px}
    .faq-question span{color:var(--blue);font-size:21px;line-height:1}
    .faq-answer{display:none;padding:0 20px 18px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question{color:var(--blue)}
    .limited{
      background:
        linear-gradient(102deg,rgba(20,80,111,.97),rgba(23,105,170,.86)),
        url("/assets/images/backpic/back-2.webp") center/cover;
      color:#fff;
    }
    .limited-inner{display:flex;align-items:center;justify-content:space-between;gap:35px}
    .limited h2{color:#fff;max-width:700px}
    .limited p{color:#d4edf1;max-width:700px;margin-top:13px}
    .limited-badge{display:inline-block;background:#f5b668;color:#53320d;border-radius:30px;padding:7px 13px;font-size:12px;font-weight:900;margin-bottom:16px}
    .brand-story{background:#fff}
    .story-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
    .story-image{height:360px;border-radius:22px;overflow:hidden;box-shadow:var(--shadow)}
    .story-image img{height:100%;width:100%;object-fit:cover}
    .story-copy p{font-size:16px;margin-top:17px}
    .story-points{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:24px}
    .story-point{padding:15px;border-radius:13px;background:var(--soft);font-size:13px;color:#496474}
    .story-point strong{display:block;color:var(--navy);font-size:16px;margin-bottom:3px}
    .final-cta{padding:80px 0;background:var(--sky)}
    .cta-box{border-radius:24px;background:var(--navy);padding:48px 55px;display:flex;justify-content:space-between;align-items:center;gap:35px;box-shadow:var(--shadow)}
    .cta-box h2{color:#fff;max-width:650px}
    .cta-box p{color:#c3d9e0;margin-top:12px;max-width:650px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap}
    .site-footer{background:#0b2031;color:#b4cbd5;padding:52px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:35px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12)}
    .footer-brand .brand-name{color:#fff}
    .footer-brand p{color:#9fb9c5;font-size:14px;margin-top:16px;max-width:310px}
    .footer-col h3{color:#fff;font-size:15px;margin-bottom:13px}
    .footer-col a{display:block;color:#9fb9c5;font-size:13px;margin:8px 0}
    .footer-col a:hover{color:#8be1e4}
    .footer-bottom{padding-top:22px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:12px;color:#8ba5b1}
    .footer-bottom a{color:#b4d9df}
    .footer-bottom a:hover{color:#fff}
    @media(max-width:1024px){
      .nav-shell{gap:14px}.brand{min-width:155px}.nav-links a{padding:9px 8px;font-size:13px}.status{display:none}
      .hero-grid{gap:30px}.hero-stage{transform:scale(.9)}
      .feature-grid{grid-template-columns:repeat(2,1fr)}
      .intro-grid,.ladder-grid,.workflow-grid,.rank-layout,.news-layout,.social-grid,.reward-layout,.faq-layout,.story-grid{gap:30px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 28px))}
      .section{padding:68px 0}
      .nav-shell{height:66px}.menu-toggle{display:block;margin-left:auto}.nav-tools{display:none}
      .nav-links{display:none;position:absolute;top:66px;left:0;right:0;padding:12px 14px;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);flex-wrap:wrap}
      .nav-links.open{display:flex}.nav-links a{flex:1 0 30%;text-align:center}
      .hero{min-height:auto}.hero-grid{grid-template-columns:1fr}.hero-copy{padding:75px 0 25px}.hero-stage{min-height:430px;transform:none}
      .stage-orbit{right:50%;transform:translateX(50%);top:10px}.floating-note{right:3%;bottom:38px}
      .trust-inner{align-items:flex-start;flex-direction:column}.intro-grid,.ladder-grid,.workflow-grid,.rank-layout,.news-layout,.social-grid,.reward-layout,.faq-layout,.story-grid{grid-template-columns:1fr}
      .intro-visual{max-width:620px}.package-grid,.topic-grid{grid-template-columns:1fr 1fr}
      .stat-grid{grid-template-columns:repeat(2,1fr)}
      .reward-boxes{max-width:650px}.limited-inner,.cta-box{align-items:flex-start;flex-direction:column}.cta-box{padding:35px 28px}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:520px){
      h1{font-size:39px}.hero-desc{font-size:16px}.hero-actions,.cta-actions{flex-direction:column;align-items:stretch}.hero-actions .btn,.cta-actions .btn{width:100%}
      .hero-stage{min-height:370px}.score-panel{width:285px}.stage-orbit{width:330px;height:330px;top:20px}
      .floating-note{font-size:11px;padding:10px 12px}.floating-note span{font-size:18px}
      .package-grid,.topic-grid,.feature-grid,.security-grid,.voices{grid-template-columns:1fr}
      .stat-grid{grid-template-columns:1fr 1fr}.stat strong{font-size:28px}
      .ladder-steps{height:270px;gap:6px}.ladder-step{padding:12px 7px;font-size:12px}.ladder-step strong{font-size:18px}
      .news-item{grid-template-columns:1fr;gap:5px}.news-item .text-link{justify-self:start;margin-top:5px}
      .rank-row{grid-template-columns:27px 1fr 55px 50px;gap:5px;font-size:12px}
      .reward-boxes{grid-template-columns:1fr 1fr}.reward-box:nth-child(2){transform:none}.reward-box:nth-child(3){transform:translateX(50%)}
      .story-points{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}
    }

/* roulang page: category3 */
:root{
      --navy:#102a43;
      --blue:#1769aa;
      --cyan:#21b6c7;
      --sky:#eaf6fb;
      --ink:#142534;
      --muted:#647789;
      --line:#dce8ef;
      --paper:#fff;
      --soft:#f5f9fb;
      --orange:#f29d49;
      --green:#2fb477;
      --red:#df6d61;
      --radius:20px;
      --radius-sm:12px;
      --shadow:0 18px 45px rgba(25,62,90,.10);
      --shadow-sm:0 8px 24px rgba(25,62,90,.08);
      --container:1220px;
      --ease:all .28s ease;
    }
    *{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;
      font-size:16px;line-height:1.75;overflow-x:hidden
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input,select{font:inherit}
    button{cursor:pointer}
    h1,h2,h3,h4,p{margin-top:0}
    h1,h2,h3,h4{color:var(--navy);line-height:1.25;letter-spacing:-.035em}
    h1{font-size:clamp(2.3rem,5vw,4.6rem)}
    h2{font-size:clamp(1.8rem,3vw,2.8rem)}
    h3{font-size:1.2rem}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;color:var(--blue);
      font-size:13px;font-weight:800;letter-spacing:.12em
    }
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--cyan);display:inline-block}
    .section{padding:92px 0}
    .section-head{max-width:730px;margin-bottom:38px}
    .section-head h2{margin:12px 0 14px}
    .section-head p{font-size:17px;color:var(--muted)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:48px;padding:0 21px;border-radius:12px;border:1px solid transparent;
      font-weight:800;white-space:nowrap;transition:var(--ease)
    }
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 10px 22px rgba(23,105,170,.2)}
    .btn-primary:hover{background:var(--navy);color:#fff;transform:translateY(-2px)}
    .btn-secondary{background:#fff;color:var(--blue);border-color:#bad8e5}
    .btn-secondary:hover{border-color:var(--blue);background:var(--sky);color:var(--navy)}
    .btn-light{background:#fff;color:var(--navy)}
    .btn-light:hover{background:#dff5f7;transform:translateY(-2px)}
    .site-header{
      position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);
      backdrop-filter:blur(18px);border-bottom:1px solid rgba(220,232,239,.85)
    }
    .nav-shell{height:76px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;min-width:190px}
    .brand-mark{
      width:38px;height:38px;border-radius:12px;display:grid;place-items:center;color:#fff;
      font-size:18px;font-weight:900;background:linear-gradient(145deg,var(--blue),var(--cyan));
      box-shadow:0 8px 16px rgba(23,105,170,.18)
    }
    .brand-name{font-size:21px;font-weight:900;letter-spacing:-.04em;color:var(--navy)}
    .nav-links{display:flex;align-items:center;gap:4px;flex:1;overflow-x:auto}
    .nav-links::-webkit-scrollbar{display:none}
    .nav-links a{
      padding:10px 12px;border-radius:10px;color:#586d7d;font-size:14px;
      white-space:nowrap;font-weight:700
    }
    .nav-links a:hover,.nav-links a.active{background:var(--sky);color:var(--blue)}
    .nav-tools{display:flex;align-items:center;gap:14px}
    .status{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:13px;white-space:nowrap}
    .status i{width:8px;height:8px;background:var(--green);border-radius:50%;box-shadow:0 0 0 5px rgba(47,180,119,.12)}
    .menu-toggle{display:none;background:none;border:0;color:var(--navy);font-size:24px}
    .inner-hero{
      position:relative;min-height:520px;color:#fff;display:flex;align-items:center;
      background:linear-gradient(90deg,rgba(11,38,63,.96),rgba(15,61,88,.84),rgba(15,61,88,.48)),
      url("/assets/images/backpic/back-2.webp") center/cover
    }
    .inner-hero:after{content:"";position:absolute;left:0;right:0;bottom:0;height:90px;background:linear-gradient(transparent,#fff)}
    .inner-hero .container{position:relative;z-index:1}
    .inner-copy{max-width:700px;padding:65px 0 90px}
    .inner-hero .eyebrow{color:#8be1e4}
    .inner-hero h1{color:#fff;margin:18px 0 20px}
    .inner-hero p{max-width:650px;color:#d8edf2;font-size:18px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:28px}
    .crumbs{font-size:13px;color:#acdbe0;margin-bottom:14px}
    .question-strip{background:var(--soft);border-bottom:1px solid var(--line);padding:18px 0}
    .question-strip .container{display:flex;justify-content:space-between;align-items:center;gap:20px}
    .question-strip strong{color:var(--navy)}
    .question-strip span{color:var(--muted);font-size:14px}
    .split{display:grid;grid-template-columns:.88fr 1.12fr;gap:70px;align-items:center}
    .split.reverse{grid-template-columns:1.08fr .92fr}
    .lead{font-size:18px;color:#405c6d}
    .visual-card{border-radius:18px;overflow:hidden;position:relative;box-shadow:var(--shadow-sm);background:#dbeef4}
    .visual-card img{width:100%;height:100%;object-fit:cover}
    .visual-card.large{height:390px}
    .visual-card .caption{position:absolute;left:0;right:0;bottom:0;padding:34px 22px 18px;background:linear-gradient(transparent,rgba(10,35,53,.88));color:#fff;font-weight:800}
    .check-list{list-style:none;margin:24px 0 0;padding:0}
    .check-list li{display:flex;gap:11px;margin:13px 0;color:#405c6d}
    .check-list li:before{content:"✓";color:var(--green);font-weight:900}
    .signal-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .signal-card,.feature-card,.scenario-card,.proof-card{
      background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
      box-shadow:var(--shadow-sm);transition:var(--ease)
    }
    .signal-card{padding:24px}
    .signal-card:hover,.feature-card:hover,.scenario-card:hover,.proof-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .signal-card .num{font-size:35px;color:var(--blue);font-weight:900;line-height:1}
    .signal-card h3{margin:16px 0 7px;font-size:17px}
    .signal-card p{color:var(--muted);font-size:14px;margin:0}
    .tint{background:var(--sky)}
    .feature-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}
    .feature-card{padding:28px;min-height:230px}
    .feature-card.accent{background:var(--navy);color:#d8edf2;border-color:var(--navy)}
    .feature-card.accent h3{color:#fff}
    .feature-card h3{margin:0 0 12px}
    .feature-card p{color:var(--muted);font-size:15px}
    .feature-card.accent p{color:#c4dce4}
    .tag{display:inline-flex;padding:5px 10px;border-radius:30px;background:#e4f5f6;color:var(--blue);font-size:12px;font-weight:800;margin-bottom:17px}
    .data-board{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:var(--shadow)}
    .board-top{display:flex;justify-content:space-between;align-items:center;gap:20px;border-bottom:1px solid var(--line);padding-bottom:20px}
    .board-top h3{margin:0}
    .board-top span{font-size:13px;color:var(--muted)}
    .bar-list{margin-top:24px}
    .bar-item{margin:19px 0}
    .bar-label{display:flex;justify-content:space-between;color:var(--muted);font-size:14px;margin-bottom:7px}
    .bar-label strong{color:var(--navy)}
    .bar-track{height:9px;border-radius:10px;background:#e9f1f4;overflow:hidden}
    .bar-track b{display:block;height:100%;border-radius:10px;background:linear-gradient(90deg,var(--blue),var(--cyan))}
    .scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .scenario-card{padding:25px}
    .scenario-card .icon{width:42px;height:42px;border-radius:13px;background:var(--sky);color:var(--blue);display:grid;place-items:center;font-weight:900;margin-bottom:18px}
    .scenario-card h3{margin-bottom:9px}
    .scenario-card p{color:var(--muted);font-size:14px;margin:0}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:2px solid #c9e7eb}
    .step{position:relative;padding:28px 22px 0 0}
    .step:before{content:"";position:absolute;top:-9px;left:0;width:16px;height:16px;border-radius:50%;background:var(--cyan);border:4px solid #fff;box-shadow:0 0 0 1px #b8dfe5}
    .step b{display:block;color:var(--blue);font-size:13px;margin-bottom:9px}
    .step h3{font-size:17px;margin-bottom:8px}
    .step p{color:var(--muted);font-size:14px;margin:0;padding-right:12px}
    .proof-layout{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .proof-card{padding:28px}
    .proof-card blockquote{margin:0;color:var(--navy);font-size:18px;font-weight:700}
    .proof-card cite{display:block;color:var(--muted);font-size:13px;font-style:normal;margin-top:16px}
    .faq-list{max-width:900px}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;border:0;background:none;padding:21px 0;text-align:left;display:flex;justify-content:space-between;align-items:center;color:var(--navy);font-weight:800}
    .faq-question span:last-child{color:var(--blue);font-size:22px;transition:var(--ease)}
    .faq-answer{display:none;padding:0 35px 20px 0;color:var(--muted);font-size:15px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta{
      padding:58px 0;background:var(--navy);color:#d8edf2
    }
    .cta-box{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{color:#fff;margin:0 0 10px}
    .cta p{margin:0;max-width:650px}
    .site-footer{background:#0b2033;color:#a9c0cb;padding:60px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:42px}
    .footer-brand .brand-name{color:#fff}
    .footer-brand p{max-width:300px;font-size:14px;margin-top:18px}
    .footer-col{display:flex;flex-direction:column;gap:9px}
    .footer-col h3{color:#fff;font-size:15px;margin:0 0 9px}
    .footer-col a{font-size:14px;color:#a9c0cb}
    .footer-col a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(210,235,240,.15);padding-top:20px;display:flex;justify-content:space-between;gap:20px;font-size:12px;flex-wrap:wrap}
    .footer-bottom a:hover{color:#fff}
    :focus-visible{outline:3px solid rgba(33,182,199,.5);outline-offset:3px}
    @media(max-width:1024px){
      .nav-tools .btn{display:none}
      .hero-grid,.split,.split.reverse{grid-template-columns:1fr;gap:35px}
      .inner-copy{padding-top:50px}
      .signal-grid{grid-template-columns:repeat(2,1fr)}
      .feature-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 30px))}
      .nav-shell{height:68px}
      .brand{min-width:auto}
      .nav-links{display:none;position:absolute;left:15px;right:15px;top:72px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}
      .nav-links a{width:100%}
      .menu-toggle{display:block}
      .status{display:none}
      .section{padding:65px 0}
      .question-strip .container{display:block}
      .question-strip span{display:block;margin-top:4px}
      .inner-hero{min-height:500px}
      .inner-hero h1{font-size:2.5rem}
      .feature-grid,.scenario-grid,.proof-layout{grid-template-columns:1fr}
      .timeline{grid-template-columns:1fr 1fr;gap:20px;border-top:0}
      .step{border-top:2px solid #c9e7eb;padding-top:23px}
      .step:before{top:-9px}
      .cta-box{display:block}
      .cta .btn{margin-top:24px}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:520px){
      .hero-actions{align-items:stretch;flex-direction:column}
      .hero-actions .btn{width:100%}
      .signal-grid{grid-template-columns:1fr}
      .visual-card.large{height:290px}
      .data-board{padding:21px}
      .timeline{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-bottom:8px}
    }

/* roulang page: category1 */
:root{
      --navy:#102a43;--blue:#1769aa;--cyan:#21b6c7;--sky:#eaf6fb;
      --ink:#142534;--muted:#647789;--line:#dce8ef;--paper:#fff;--soft:#f5f9fb;
      --orange:#f29d49;--green:#2fb477;--red:#df7065;--radius:20px;--radius-sm:12px;
      --shadow:0 18px 45px rgba(25,62,90,.10);--shadow-sm:0 8px 24px rgba(25,62,90,.08);
      --container:1220px;--ease:all .28s ease
    }
    *{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;font-size:16px;line-height:1.75;overflow-x:hidden}
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    h1,h2,h3,h4{color:var(--navy);font-weight:900;line-height:1.25;letter-spacing:-.035em}
    h1{font-size:clamp(38px,5vw,68px);margin:15px 0 20px}
    h2{font-size:clamp(28px,3.2vw,44px);margin:10px 0 15px}
    h3{font-size:21px;margin:0 0 10px}
    p{color:var(--muted);margin:0 0 14px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--cyan)}
    .section{padding:92px 0}
    .section-head{max-width:720px;margin-bottom:38px}
    .section-head p{font-size:17px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 21px;border-radius:12px;border:1px solid transparent;font-weight:800;transition:var(--ease);white-space:nowrap}
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 10px 22px rgba(23,105,170,.2)}
    .btn-primary:hover{background:var(--navy);color:#fff;transform:translateY(-2px)}
    .btn-secondary{background:#fff;color:var(--blue);border-color:#bad8e5}
    .btn-secondary:hover{border-color:var(--blue);background:var(--sky);color:var(--navy)}
    .btn-light{background:#fff;color:var(--navy)}
    .btn-light:hover{background:#dff5f7;transform:translateY(-2px)}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid rgba(220,232,239,.85)}
    .nav-shell{height:76px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;min-width:190px}
    .brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;color:#fff;font-size:18px;font-weight:900;background:linear-gradient(145deg,var(--blue),var(--cyan));box-shadow:0 8px 16px rgba(23,105,170,.18)}
    .brand-name{font-size:21px;font-weight:900;letter-spacing:-.04em;color:var(--navy)}
    .nav-links{display:flex;align-items:center;gap:4px;flex:1;overflow-x:auto}
    .nav-links::-webkit-scrollbar{display:none}
    .nav-links a{padding:10px 12px;border-radius:10px;color:#586d7d;font-size:14px;white-space:nowrap;font-weight:700}
    .nav-links a:hover,.nav-links a.active{background:var(--sky);color:var(--blue)}
    .nav-tools{display:flex;align-items:center;gap:14px}
    .status{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:13px;white-space:nowrap}
    .status i{width:8px;height:8px;background:var(--green);border-radius:50%;box-shadow:0 0 0 5px rgba(47,180,119,.12)}
    .menu-toggle{display:none;background:none;border:0;color:var(--navy);font-size:24px}
    .hero{min-height:625px;display:flex;align-items:center;background:linear-gradient(90deg,rgba(11,38,63,.97),rgba(15,61,88,.87) 55%,rgba(15,61,88,.46)),url("/assets/images/backpic/back-2.webp") center/cover;color:#fff;position:relative}
    .hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:center}
    .hero-copy{padding:60px 0}
    .hero .eyebrow{color:#8be1e4}
    .hero h1{color:#fff;max-width:650px}
    .hero-desc{color:#d9edf2;font-size:18px;max-width:640px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin:28px 0}
    .hero-meta{display:flex;gap:26px;flex-wrap:wrap;color:#d9edf2;font-size:14px}
    .hero-meta strong{display:block;color:#fff;font-size:24px;line-height:1.15}
    .data-console{background:rgba(255,255,255,.96);color:var(--ink);border:1px solid rgba(255,255,255,.7);border-radius:24px;padding:25px;box-shadow:0 25px 60px rgba(0,20,40,.25);position:relative}
    .console-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:17px}
    .console-title{font-weight:900;color:var(--navy)}
    .live-badge{font-size:11px;color:#fff;background:var(--red);border-radius:20px;padding:4px 9px;font-weight:800}
    .match-card{display:grid;grid-template-columns:1fr 84px 1fr;gap:10px;align-items:center;text-align:center;padding:25px 0 20px}
    .team-logo{width:52px;height:52px;border-radius:16px;background:var(--sky);display:grid;place-items:center;margin:0 auto 7px;font-weight:900;color:var(--blue)}
    .team-name{font-weight:800;color:var(--navy);font-size:14px}
    .score{font-size:35px;color:var(--navy);font-weight:900;line-height:1}
    .match-minute{font-size:12px;color:var(--red);margin-top:8px;font-weight:800}
    .metric-row{display:flex;justify-content:space-between;gap:12px;margin:10px 0;font-size:12px}
    .metric-row b{color:var(--navy)}
    .bar{height:6px;border-radius:5px;background:#e5eff3;display:flex;overflow:hidden}
    .bar span:first-child{background:var(--blue)}.bar span:last-child{background:var(--cyan)}
    .panel-divider{height:1px;background:var(--line);margin:18px 0}
    .console-foot{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}
    .section-soft{background:var(--soft)}
    .intro-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:72px;align-items:center}
    .intro-copy .text-link{margin-top:16px}
    .text-link{color:var(--blue);font-weight:800;display:inline-flex;gap:7px;align-items:center}
    .text-link:hover{color:var(--cyan);gap:11px}
    .visual-card{border-radius:18px;overflow:hidden;position:relative;min-height:240px;box-shadow:var(--shadow-sm)}
    .visual-card img{width:100%;height:100%;object-fit:cover}
    .visual-card.large{height:355px}
    .visual-card .caption{position:absolute;left:0;right:0;bottom:0;padding:38px 20px 16px;background:linear-gradient(transparent,rgba(10,35,53,.86));color:#fff;font-weight:800}
    .stats-band{background:var(--navy);color:#fff;padding:43px 0}
    .stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
    .stat{border-left:1px solid rgba(255,255,255,.2);padding-left:24px}
    .stat strong{display:block;font-size:35px;line-height:1.2;color:#fff}
    .stat span{color:#b9d5df;font-size:14px}
    .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .feature-card,.scenario-card,.quality-card,.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:var(--ease)}
    .feature-card{padding:27px;min-height:225px}
    .feature-card:hover,.scenario-card:hover,.quality-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .icon-box{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;color:var(--blue);background:var(--sky);font-weight:900;font-size:19px;margin-bottom:22px}
    .feature-card p{font-size:14px}
    .data-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:stretch}
    .table-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden}
    .table-head{display:flex;justify-content:space-between;align-items:center;padding:24px 27px;border-bottom:1px solid var(--line)}
    .table-head span{font-size:13px;color:var(--muted)}
    .data-list{padding:8px 27px 20px}
    .data-line{display:grid;grid-template-columns:1.2fr .8fr .8fr 1fr;gap:10px;align-items:center;padding:15px 0;border-bottom:1px solid #edf3f5;font-size:14px}
    .data-line:last-child{border-bottom:0}
    .data-line strong{color:var(--navy)}
    .trend{height:8px;background:#e9f2f5;border-radius:8px;overflow:hidden}
    .trend i{height:100%;display:block;background:linear-gradient(90deg,var(--cyan),var(--blue));border-radius:8px}
    .side-note{padding:30px;border-radius:var(--radius);background:#e9f6fa;border:1px solid #c9e8ef}
    .side-note ul{padding:0;margin:20px 0 0;list-style:none}
    .side-note li{padding:11px 0;border-bottom:1px solid rgba(23,105,170,.13);color:#456678;font-size:14px}
    .side-note li:before{content:"↗";color:var(--blue);font-weight:900;margin-right:9px}
    .process{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
    .process:before{content:"";height:1px;background:var(--line);position:absolute;top:23px;left:10%;right:10%}
    .step{position:relative;text-align:center;padding:0 16px}
    .step-num{width:46px;height:46px;margin:0 auto 18px;display:grid;place-items:center;border-radius:50%;background:#fff;border:1px solid #b9dbe5;color:var(--blue);font-weight:900;position:relative;z-index:1}
    .step p{font-size:14px}
    .scenario-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:35px;align-items:center}
    .scenario-image{height:350px;border-radius:var(--radius);overflow:hidden}
    .scenario-image img{width:100%;height:100%;object-fit:cover}
    .scenario-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
    .scenario-card{padding:22px;box-shadow:none}
    .scenario-card h3{font-size:18px}
    .scenario-card p{font-size:14px}
    .quality-wrap{display:grid;grid-template-columns:.95fr 1.05fr;gap:45px;align-items:center}
    .ring{width:240px;height:240px;border-radius:50%;margin:auto;background:conic-gradient(var(--cyan) 0 78%,#dceef2 78% 100%);display:grid;place-items:center}
    .ring:after{content:"";width:174px;height:174px;border-radius:50%;background:#fff;position:absolute}
    .ring-inner{position:relative;text-align:center;z-index:1}.ring-inner strong{display:block;font-size:42px;color:var(--navy);line-height:1}.ring-inner span{font-size:13px;color:var(--muted)}
    .quality-list{display:grid;grid-template-columns:1fr 1fr;gap:15px}
    .quality-card{padding:19px;box-shadow:none}.quality-card b{display:block;color:var(--navy);margin-bottom:4px}.quality-card span{font-size:13px;color:var(--muted)}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .faq-item{padding:22px 24px;box-shadow:none}
    .faq-item h3{font-size:17px;margin-bottom:8px}.faq-item p{font-size:14px;margin:0}
    .cta{background:linear-gradient(120deg,var(--navy),#16577a);color:#fff;border-radius:26px;padding:55px 62px;display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{color:#fff;margin:0 0 12px}.cta p{color:#c5e0e7;max-width:650px}.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
    .site-footer{background:#0c2235;color:#b4cad3;padding:62px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:42px;border-bottom:1px solid rgba(255,255,255,.13)}
    .footer-brand .brand-name{color:#fff}.footer-brand p{color:#9eb8c2;font-size:14px;max-width:280px;margin-top:18px}
    .footer-col h3{color:#fff;font-size:15px;margin-bottom:15px}.footer-col a{display:block;color:#9eb8c2;font-size:14px;margin:8px 0}.footer-col a:hover{color:#79dbe0}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;font-size:12px;color:#83a1ad;flex-wrap:wrap}.footer-bottom a:hover{color:#fff}
    :focus-visible{outline:3px solid rgba(33,182,199,.45);outline-offset:3px}
    @media(max-width:1024px){.hero-grid,.intro-grid,.data-layout,.scenario-layout,.quality-wrap{gap:34px}.nav-shell{gap:12px}.brand{min-width:165px}.nav-tools .btn{display:none}.feature-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.container{width:min(var(--container),calc(100% - 30px))}.section{padding:68px 0}.nav-shell{height:68px}.nav-links{display:none;position:absolute;top:68px;left:15px;right:15px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 15px}.menu-toggle{display:block}.status{display:none}.hero{min-height:auto}.hero-grid{grid-template-columns:1fr}.hero-copy{padding:62px 0 15px}.hero-stage{min-height:430px}.stats-grid{grid-template-columns:1fr 1fr;gap:25px}.data-layout,.scenario-layout,.quality-wrap{grid-template-columns:1fr}.process{grid-template-columns:1fr 1fr;gap:26px}.process:before{display:none}.quality-wrap{justify-items:center}.quality-list{width:100%}.cta{padding:38px 27px;display:block}.cta-actions{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
    @media(max-width:520px){h1{font-size:40px}.hero-desc{font-size:16px}.hero-actions .btn{width:100%}.data-console{padding:18px}.feature-grid,.faq-grid,.scenario-grid,.quality-list{grid-template-columns:1fr}.stats-grid{grid-template-columns:1fr 1fr}.stat{padding-left:13px}.stat strong{font-size:27px}.data-line{grid-template-columns:1.1fr .7fr .7fr 1fr;font-size:12px}.process{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:10px}}

/* roulang page: category4 */
:root{
      --navy:#102a43;--blue:#1769aa;--cyan:#21b6c7;--sky:#eaf6fb;
      --ink:#142534;--muted:#647789;--line:#dce8ef;--paper:#fff;
      --soft:#f5f9fb;--orange:#f29d49;--green:#2fb477;--red:#e06e62;
      --radius:20px;--radius-sm:12px;--shadow:0 18px 45px rgba(25,62,90,.10);
      --shadow-sm:0 8px 24px rgba(25,62,90,.08);--container:1220px;
      --ease:all .28s ease;
    }
    html{scroll-behavior:smooth}
    *{box-sizing:border-box}
    body{margin:0;color:var(--ink);background:var(--paper);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.75;font-size:16px;overflow-x:hidden}
    h1,h2,h3,h4,p{margin-top:0}h1,h2,h3,h4{color:var(--navy);line-height:1.25;font-weight:900;letter-spacing:-.035em}
    h1{font-size:clamp(38px,5vw,68px)}h2{font-size:clamp(29px,3.2vw,44px)}h3{font-size:21px}
    a{color:inherit;text-decoration:none;transition:var(--ease)}img{max-width:100%;display:block}button,input{font:inherit}button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--cyan);display:inline-block}
    .section{padding:88px 0}.section-head{max-width:740px;margin-bottom:38px}.section-head h2{margin:12px 0 14px}.section-head p{font-size:17px;color:var(--muted)}
    .text-link{color:var(--blue);font-weight:800;display:inline-flex;gap:7px;align-items:center}.text-link:hover{color:var(--cyan);gap:11px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 21px;border-radius:12px;border:1px solid transparent;font-weight:800;transition:var(--ease);white-space:nowrap}
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 10px 22px rgba(23,105,170,.2)}.btn-primary:hover{background:var(--navy);transform:translateY(-2px);color:#fff}
    .btn-secondary{background:#fff;color:var(--blue);border-color:#bad8e5}.btn-secondary:hover{border-color:var(--blue);background:var(--sky);color:var(--navy)}
    .btn-light{background:#fff;color:var(--navy)}.btn-light:hover{background:#dff5f7;transform:translateY(-2px)}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid rgba(220,232,239,.85)}
    .nav-shell{height:76px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:11px;min-width:190px}
    .brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;color:#fff;font-size:18px;font-weight:900;background:linear-gradient(145deg,var(--blue),var(--cyan));box-shadow:0 8px 16px rgba(23,105,170,.18)}
    .brand-name{font-size:21px;font-weight:900;letter-spacing:-.04em;color:var(--navy)}.nav-links{display:flex;align-items:center;gap:4px;flex:1;overflow-x:auto}.nav-links::-webkit-scrollbar{display:none}
    .nav-links a{padding:10px 12px;border-radius:10px;color:#586d7d;font-size:14px;white-space:nowrap;font-weight:700}.nav-links a:hover,.nav-links a.active{background:var(--sky);color:var(--blue)}
    .nav-tools{display:flex;align-items:center;gap:14px}.status{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:12px;white-space:nowrap}.status i{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px #dcf6ea}
    .menu-toggle{display:none;background:none;border:0;color:var(--navy);font-size:24px}
    .inner-hero{color:#fff;padding:105px 0 100px;background:linear-gradient(90deg,rgba(11,38,63,.96),rgba(15,61,88,.74)),url("/assets/images/backpic/back-2.webp") center/cover;position:relative}
    .inner-hero h1{color:#fff;max-width:720px;margin:16px 0 22px}.inner-hero p{color:#d9edf2;max-width:700px;font-size:18px}.inner-hero .eyebrow{color:#8be1e4}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:30px}.hero-note{margin-top:25px;color:#c9e3e9;font-size:14px}
    .split-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}.visual-card{border-radius:18px;overflow:hidden;position:relative;box-shadow:var(--shadow-sm)}.visual-card img{width:100%;height:100%;object-fit:cover}.visual-card.large{height:390px}
    .visual-card .caption{position:absolute;left:0;right:0;bottom:0;padding:38px 22px 17px;background:linear-gradient(transparent,rgba(10,35,53,.86));color:#fff;font-weight:800}
    .insight-list{list-style:none;margin:25px 0 0;padding:0}.insight-list li{display:flex;gap:15px;padding:17px 0;border-bottom:1px solid var(--line)}.insight-list b{color:var(--cyan);font-size:21px}.insight-list strong{display:block;color:var(--navy);margin-bottom:3px}.insight-list span{color:var(--muted);font-size:14px}
    .blue-band{background:var(--sky)}.feature-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}.feature-card,.metric-card,.process-card,.quote-card,.faq-item,.contact-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
    .feature-card{padding:30px}.feature-card.highlight{background:var(--navy);color:#d7edf3;border-color:var(--navy);padding:38px}.feature-card.highlight h3{color:#fff}.feature-card p{color:var(--muted)}.feature-card.highlight p{color:#c6dce4}
    .tag{display:inline-flex;border-radius:30px;padding:5px 10px;background:#dff5f7;color:var(--blue);font-size:12px;font-weight:800;margin-bottom:16px}.tag.orange{background:#fff0df;color:#a85d19}
    .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.metric-card{padding:24px}.metric-card strong{font-size:34px;color:var(--blue);display:block;line-height:1.2}.metric-card span{font-size:13px;color:var(--muted)}
    .process-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.process-card{padding:27px;position:relative}.process-no{font-size:12px;color:var(--cyan);font-weight:900;letter-spacing:.12em}.process-card h3{margin:10px 0}.process-card p{color:var(--muted);font-size:14px}
    .review-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:24px}.review-main{padding:34px;border-radius:var(--radius);background:#f7fbfc;border:1px solid var(--line)}.review-main h3{font-size:27px}.review-main p{color:var(--muted)}.review-side{display:grid;gap:16px}.quote-card{padding:25px}.quote-card p{font-size:15px;color:#405c6d}.quote-card strong{font-size:13px;color:var(--navy)}
    .faq-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:60px}.faq-item{padding:20px 23px;margin-bottom:12px}.faq-item summary{font-weight:900;color:var(--navy);cursor:pointer;list-style:none}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"＋";float:right;color:var(--cyan);font-size:22px}.faq-item[open] summary:after{content:"－"}.faq-item p{margin:14px 0 0;color:var(--muted);font-size:14px}
    .cta{padding:62px 0;background:var(--blue);color:#e4f5f7}.cta-grid{display:flex;align-items:center;justify-content:space-between;gap:30px}.cta h2{color:#fff;margin:10px 0}.cta p{max-width:650px;margin:0;color:#d2ecf0}
    .site-footer{padding:58px 0 22px;background:#0d2539;color:#b9d0da}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}.footer-brand .brand-name{color:#fff}.footer-brand p{max-width:300px;font-size:14px;margin-top:18px}.footer-col h3{font-size:15px;color:#fff;margin-bottom:14px}.footer-col a{display:block;font-size:14px;margin:8px 0;color:#b9d0da}.footer-col a:hover{color:#7fe0e4}.footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:35px;padding-top:18px;display:flex;justify-content:space-between;gap:16px;font-size:12px;color:#91adba}.footer-bottom a:hover{color:#fff}
    :focus-visible{outline:3px solid rgba(33,182,199,.45);outline-offset:3px}
    @media(max-width:1024px){.nav-shell{gap:15px}.nav-tools .btn{display:none}.split-grid,.review-grid,.feature-grid{gap:30px}.metric-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.container{width:min(100% - 30px,var(--container))}.section{padding:65px 0}.nav-links{display:none}.nav-shell{height:68px}.menu-toggle{display:block;margin-left:auto}.nav-tools{display:none}.brand{min-width:auto}.mobile-open .nav-links{display:flex;position:absolute;left:15px;right:15px;top:68px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-wrap:wrap}.inner-hero{padding:75px 0 70px}.split-grid,.review-grid,.feature-grid,.faq-grid{grid-template-columns:1fr}.visual-card.large{height:290px}.process-grid{grid-template-columns:1fr}.cta-grid{display:block}.cta .btn{margin-top:24px}.footer-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:520px){h1{font-size:40px}.hero-actions .btn{width:100%}.metric-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:22px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}

/* roulang page: category5 */
:root{
      --navy:#102a43;
      --blue:#1769aa;
      --cyan:#21b6c7;
      --sky:#eaf6fb;
      --ink:#142534;
      --muted:#647789;
      --line:#dce8ef;
      --paper:#fff;
      --soft:#f5f9fb;
      --orange:#f29d49;
      --green:#2fb477;
      --red:#e06e62;
      --radius:20px;
      --radius-sm:12px;
      --shadow:0 18px 45px rgba(25,62,90,.10);
      --shadow-sm:0 8px 24px rgba(25,62,90,.08);
      --container:1220px;
      --ease:all .28s ease;
    }
    *{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:1.75;
      font-size:16px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    h1,h2,h3,h4,p{margin-top:0}
    h1,h2,h3,h4{color:var(--navy);line-height:1.25;font-weight:900}
    h1{font-size:clamp(38px,5vw,64px);letter-spacing:-.055em}
    h2{font-size:clamp(29px,3.3vw,44px);letter-spacing:-.04em}
    h3{font-size:21px}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;color:var(--blue);
      font-size:13px;font-weight:800;letter-spacing:.12em;
    }
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--cyan);display:inline-block}
    .section{padding:94px 0}
    .section-head{max-width:740px;margin-bottom:38px}
    .section-head h2{margin:12px 0 14px}
    .section-head p{font-size:17px;color:var(--muted)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:48px;padding:0 21px;border-radius:12px;border:1px solid transparent;
      font-weight:800;white-space:nowrap;transition:var(--ease);
    }
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 10px 22px rgba(23,105,170,.2)}
    .btn-primary:hover{background:var(--navy);color:#fff;transform:translateY(-2px)}
    .btn-secondary{background:#fff;color:var(--blue);border-color:#bad8e5}
    .btn-secondary:hover{background:var(--sky);border-color:var(--blue);color:var(--navy)}
    .btn-light{background:#fff;color:var(--navy)}
    .btn-light:hover{background:#dff5f7;transform:translateY(-2px)}
    .text-link{display:inline-flex;align-items:center;gap:7px;color:var(--blue);font-weight:800}
    .text-link:hover{color:var(--cyan);gap:11px}
    .tag,.status{
      display:inline-flex;align-items:center;border-radius:30px;padding:5px 10px;
      font-size:12px;font-weight:800;background:var(--sky);color:var(--blue)
    }
    .site-header{
      position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);
      backdrop-filter:blur(18px);border-bottom:1px solid rgba(220,232,239,.9)
    }
    .nav-shell{height:76px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;min-width:190px}
    .brand-mark{
      width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
      color:#fff;font-size:18px;font-weight:900;background:linear-gradient(145deg,var(--blue),var(--cyan));
      box-shadow:0 8px 16px rgba(23,105,170,.18)
    }
    .brand-name{font-size:21px;font-weight:900;letter-spacing:-.04em;color:var(--navy)}
    .nav-links{display:flex;align-items:center;gap:4px;flex:1;overflow-x:auto}
    .nav-links::-webkit-scrollbar{display:none}
    .nav-links a{
      padding:10px 12px;border-radius:10px;color:#586d7d;font-size:14px;
      white-space:nowrap;font-weight:700
    }
    .nav-links a:hover,.nav-links a.active{background:var(--sky);color:var(--blue)}
    .nav-tools{display:flex;align-items:center;gap:14px}
    .live-state{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:13px;font-weight:700}
    .live-state i{width:8px;height:8px;background:var(--green);border-radius:50%;box-shadow:0 0 0 5px rgba(47,180,119,.13)}
    .menu-toggle{display:none;background:none;border:0;color:var(--navy);font-size:25px}
    .page-hero{
      min-height:430px;display:flex;align-items:center;color:#fff;position:relative;
      background:linear-gradient(90deg,rgba(11,38,63,.97),rgba(15,61,88,.82),rgba(15,61,88,.38)),
      url("/assets/images/backpic/back-2.webp") center/cover;
    }
    .page-hero:after{content:"";position:absolute;inset:auto 0 0;height:90px;background:linear-gradient(transparent,#fff)}
    .hero-content{position:relative;z-index:1;max-width:810px;padding:70px 0 80px}
    .page-hero .eyebrow{color:#8be1e4}
    .page-hero h1{color:#fff;margin:16px 0 18px}
    .page-hero p{max-width:720px;color:#d9edf2;font-size:18px;margin-bottom:26px}
    .hero-note{display:flex;flex-wrap:wrap;gap:12px}
    .hero-note span{padding:8px 13px;border:1px solid rgba(255,255,255,.22);border-radius:10px;color:#e6f6f7;font-size:13px;background:rgba(255,255,255,.08)}
    .intro-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:64px;align-items:center}
    .intro-copy p{color:var(--muted);font-size:17px}
    .intro-copy p+p{margin-top:16px}
    .visual-card{border-radius:18px;overflow:hidden;position:relative;box-shadow:var(--shadow-sm)}
    .visual-card img{width:100%;height:100%;object-fit:cover}
    .visual-card.large{height:365px}
    .visual-card .caption{
      position:absolute;left:0;right:0;bottom:0;padding:34px 22px 18px;
      color:#fff;background:linear-gradient(transparent,rgba(10,35,53,.88));font-weight:800
    }
    .review-board{
      background:var(--soft);border:1px solid var(--line);border-radius:var(--radius);
      padding:30px;box-shadow:var(--shadow-sm)
    }
    .board-top{display:flex;justify-content:space-between;align-items:center;gap:15px;border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:24px}
    .board-title{font-size:20px;font-weight:900;color:var(--navy)}
    .board-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px}
    .team-box{background:#fff;border:1px solid var(--line);border-radius:16px;padding:19px;text-align:center}
    .team-badge{width:48px;height:48px;border-radius:15px;display:grid;place-items:center;margin:0 auto 10px;background:var(--sky);color:var(--blue);font-weight:900;font-size:18px}
    .score{font-size:37px;line-height:1;font-weight:900;color:var(--navy);margin:7px 0}
    .metric-box{background:#fff;border-radius:16px;padding:19px;border:1px solid var(--line)}
    .metric-box small{color:var(--muted);display:block;margin-bottom:5px}
    .metric-box strong{font-size:25px;color:var(--blue)}
    .progress{height:8px;border-radius:20px;background:#e6eff3;overflow:hidden;margin-top:10px}
    .progress span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--blue),var(--cyan))}
    .split-section{background:var(--navy);color:#fff}
    .split-section h2,.split-section h3{color:#fff}
    .split-section .section-head p{color:#c6dce5}
    .dimension-layout{display:grid;grid-template-columns:.95fr 1.05fr;gap:62px;align-items:start}
    .dimension-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .dimension-item{padding:23px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:16px;transition:var(--ease)}
    .dimension-item:hover{background:rgba(255,255,255,.14);transform:translateY(-3px)}
    .dimension-item b{display:block;color:#8be1e4;font-size:14px;margin-bottom:8px}
    .dimension-item p{margin:0;color:#d1e3e9;font-size:14px}
    .timeline{position:relative;padding-left:28px;border-left:2px solid #c9e4ea}
    .timeline-item{position:relative;padding:0 0 27px 24px}
    .timeline-item:before{content:"";position:absolute;left:-37px;top:5px;width:16px;height:16px;border-radius:50%;background:var(--cyan);border:4px solid #e4f5f7}
    .timeline-item:last-child{padding-bottom:0}
    .timeline-item strong{display:block;color:var(--navy);margin-bottom:5px}
    .timeline-item p{margin:0;color:var(--muted);font-size:15px}
    .case-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:stretch}
    .case-feature{display:grid;grid-template-columns:.9fr 1.1fr;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm)}
    .case-feature img{width:100%;height:100%;object-fit:cover;min-height:300px}
    .case-copy{padding:34px}
    .case-copy p{color:var(--muted)}
    .case-list{display:grid;gap:15px}
    .case-list-item{padding:24px;background:var(--sky);border-radius:16px;border:1px solid #d8edf2}
    .case-list-item h3{font-size:18px;margin-bottom:7px}
    .case-list-item p{margin:0;color:var(--muted);font-size:14px}
    .number-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
    .number-card{padding:25px 20px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-sm)}
    .number-card strong{display:block;color:var(--blue);font-size:34px;line-height:1;margin-bottom:9px}
    .number-card span{color:var(--muted);font-size:14px}
    .quote-section{background:#f2f8fa}
    .quote-box{max-width:900px;margin:0 auto;text-align:center;padding:50px 30px;border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}
    .quote-box blockquote{margin:0 auto 22px;color:var(--navy);font-size:clamp(23px,3vw,35px);font-weight:900;line-height:1.45}
    .quote-box cite{font-style:normal;color:var(--muted);font-size:14px}
    .faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:65px;align-items:start}
    .faq-list{display:grid;gap:12px}
    .faq-item{border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden}
    .faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;border:0;background:none;padding:19px 21px;color:var(--navy);font-weight:900}
    .faq-question span:last-child{font-size:22px;color:var(--cyan);transition:var(--ease)}
    .faq-answer{max-height:0;overflow:hidden;padding:0 21px;color:var(--muted);font-size:14px;transition:max-height .3s ease,padding .3s ease}
    .faq-item.open .faq-answer{max-height:180px;padding:0 21px 19px}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta-band{padding:70px 0;background:linear-gradient(110deg,var(--blue),#147f9d);color:#fff}
    .cta-layout{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta-layout h2{color:#fff;margin:10px 0}
    .cta-layout p{margin:0;color:#d9f0f2;max-width:650px}
    .site-footer{padding:65px 0 25px;background:#0d2235;color:#b7cbd5}
    .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:38px;padding-bottom:45px}
    .footer-brand .brand{margin-bottom:18px}
    .footer-brand .brand-name{color:#fff}
    .footer-brand p{max-width:310px;font-size:14px;color:#a9c0cb}
    .footer-col h3{font-size:15px;color:#fff;margin-bottom:15px}
    .footer-col a{display:block;color:#a9c0cb;font-size:14px;margin:9px 0}
    .footer-col a:hover{color:#7fe1e3}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);font-size:12px;color:#91aab6}
    .footer-bottom a:hover{color:#fff}
    :focus-visible{outline:3px solid rgba(33,182,199,.5);outline-offset:3px}
    @media(max-width:1024px){
      .nav-shell{gap:15px}.brand{min-width:165px}
      .nav-links a{padding:9px 8px;font-size:13px}
      .intro-layout,.dimension-layout,.case-layout,.faq-grid{grid-template-columns:1fr;gap:35px}
      .number-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 30px))}
      .nav-shell{height:68px}.nav-tools{margin-left:auto}
      .live-state{display:none}.menu-toggle{display:block}
      .nav-links{
        display:none;position:absolute;top:68px;left:15px;right:15px;padding:10px;
        flex-direction:column;align-items:stretch;background:#fff;border:1px solid var(--line);
        border-radius:15px;box-shadow:var(--shadow)
      }
      .nav-links.is-open{display:flex}
      .nav-links a{width:100%}
      .page-hero{min-height:470px}.hero-content{padding:70px 0}
      .section{padding:67px 0}
      .board-grid{grid-template-columns:1fr 1fr}
      .board-grid .metric-box:last-child{grid-column:1/-1}
      .dimension-list{grid-template-columns:1fr}
      .case-feature{grid-template-columns:1fr}.case-feature img{height:230px;min-height:0}
      .cta-layout{display:block}.cta-layout .btn{margin-top:24px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    }
    @media(max-width:520px){
      h1{font-size:38px}.page-hero h1{font-size:40px}
      .hero-note{display:grid;grid-template-columns:1fr}
      .review-board{padding:18px}.board-top{align-items:flex-start;flex-direction:column}
      .board-grid{grid-template-columns:1fr}.board-grid .metric-box:last-child{grid-column:auto}
      .number-grid{grid-template-columns:1fr 1fr;gap:10px}
      .number-card{padding:19px 14px}.number-card strong{font-size:28px}
      .quote-box{padding:35px 20px}.footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}
    }

/* roulang page: category6 */
:root{
      --navy:#102a43;
      --blue:#1769aa;
      --cyan:#21b6c7;
      --sky:#eaf6fb;
      --ink:#142534;
      --muted:#647789;
      --line:#dce8ef;
      --paper:#fff;
      --soft:#f5f9fb;
      --orange:#f29d49;
      --green:#2fb477;
      --red:#e06e62;
      --radius:20px;
      --radius-sm:12px;
      --shadow:0 18px 45px rgba(25,62,90,.10);
      --shadow-sm:0 8px 24px rgba(25,62,90,.08);
      --container:1220px;
      --ease:all .28s ease;
    }
    html{scroll-behavior:smooth}
    *{box-sizing:border-box}
    body{
      margin:0;
      color:var(--ink);
      background:var(--paper);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      font-size:16px;
      line-height:1.75;
      overflow-x:hidden
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    h1,h2,h3,h4,p{margin-top:0}
    h1,h2,h3,h4{color:var(--navy);line-height:1.25;font-weight:900}
    h1{font-size:clamp(36px,5vw,66px);letter-spacing:-.055em}
    h2{font-size:clamp(28px,3.3vw,42px);letter-spacing:-.04em}
    h3{font-size:21px}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;color:var(--blue);
      font-size:13px;font-weight:800;letter-spacing:.12em
    }
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--cyan);display:inline-block}
    .section{padding:88px 0}
    .section-head{max-width:720px;margin-bottom:38px}
    .section-head h2{margin:12px 0 14px}
    .section-head p{font-size:17px;color:var(--muted)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:48px;padding:0 21px;border:1px solid transparent;border-radius:12px;
      font-weight:800;white-space:nowrap;transition:var(--ease)
    }
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 10px 22px rgba(23,105,170,.2)}
    .btn-primary:hover{background:var(--navy);color:#fff;transform:translateY(-2px)}
    .btn-secondary{background:#fff;color:var(--blue);border-color:#bad8e5}
    .btn-secondary:hover{background:var(--sky);color:var(--navy);border-color:var(--blue)}
    .btn-light{background:#fff;color:var(--navy)}
    .btn-light:hover{background:#dff5f7;color:var(--navy);transform:translateY(-2px)}
    .site-header{
      position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);
      backdrop-filter:blur(18px);border-bottom:1px solid rgba(220,232,239,.85)
    }
    .nav-shell{height:76px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;min-width:190px}
    .brand-mark{
      width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
      color:#fff;font-size:18px;font-weight:900;background:linear-gradient(145deg,var(--blue),var(--cyan));
      box-shadow:0 8px 16px rgba(23,105,170,.18)
    }
    .brand-name{font-size:21px;font-weight:900;letter-spacing:-.04em;color:var(--navy)}
    .nav-links{display:flex;align-items:center;gap:4px;flex:1;overflow-x:auto}
    .nav-links::-webkit-scrollbar{display:none}
    .nav-links a{
      padding:10px 12px;border-radius:10px;color:#586d7d;font-size:14px;
      white-space:nowrap;font-weight:700
    }
    .nav-links a:hover,.nav-links a.active{background:var(--sky);color:var(--blue)}
    .nav-tools{display:flex;align-items:center;gap:14px}
    .status{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:13px;white-space:nowrap}
    .status i{width:8px;height:8px;background:var(--green);border-radius:50%;box-shadow:0 0 0 5px rgba(47,180,119,.13)}
    .menu-toggle{display:none;background:none;border:0;color:var(--navy);font-size:24px}
    .inner-hero{
      padding:76px 0 82px;color:#fff;position:relative;isolation:isolate;
      background:linear-gradient(100deg,rgba(11,38,63,.96),rgba(15,61,88,.72)),url("/assets/images/backpic/back-2.webp") center/cover
    }
    .inner-hero:after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(33,182,199,.28),transparent 32%);z-index:-1}
    .inner-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:64px;align-items:center}
    .inner-hero h1{color:#fff;margin:14px 0 20px}
    .inner-hero p{max-width:690px;color:#d8edf1;font-size:18px}
    .inner-hero .eyebrow{color:#8be1e4}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:29px}
    .topic-board{
      background:rgba(255,255,255,.96);color:var(--ink);border:1px solid rgba(255,255,255,.7);
      border-radius:22px;padding:25px;box-shadow:0 25px 60px rgba(5,30,50,.25);transform:rotate(1deg)
    }
    .board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:17px;margin-bottom:18px}
    .board-label{font-size:13px;color:var(--muted);font-weight:800}
    .live-badge{font-size:11px;color:#fff;background:var(--red);border-radius:20px;padding:4px 9px;font-weight:800}
    .board-feature{display:grid;grid-template-columns:86px 1fr;gap:17px;align-items:center}
    .board-feature img{height:102px;width:86px;object-fit:cover;border-radius:14px}
    .board-feature h3{font-size:20px;margin:0 0 6px}
    .board-feature p{font-size:13px;color:var(--muted);margin:0}
    .board-list{margin-top:20px;padding-top:17px;border-top:1px solid var(--line)}
    .board-list div{display:flex;justify-content:space-between;gap:12px;font-size:13px;padding:7px 0}
    .board-list span{color:var(--muted)}
    .board-list b{color:var(--blue)}
    .topic-intro{background:var(--paper)}
    .intro-layout{display:grid;grid-template-columns:.74fr 1.26fr;gap:68px;align-items:start}
    .intro-layout p{color:var(--muted);font-size:17px}
    .intro-note{border-left:3px solid var(--cyan);padding:5px 0 5px 20px;margin-top:25px;color:var(--navy);font-weight:700}
    .topic-image{height:365px;border-radius:20px;overflow:hidden;box-shadow:var(--shadow);position:relative}
    .topic-image img{width:100%;height:100%;object-fit:cover}
    .topic-image figcaption{position:absolute;bottom:0;left:0;right:0;padding:38px 23px 18px;color:#fff;font-weight:800;background:linear-gradient(transparent,rgba(10,35,53,.86))}
    .feature-section{background:var(--soft)}
    .feature-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
    .feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:var(--ease)}
    .feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .feature-card img{height:215px;width:100%;object-fit:cover}
    .feature-content{padding:24px}
    .feature-content h3{margin-bottom:10px}
    .feature-content p{color:var(--muted);margin-bottom:17px}
    .feature-side{display:grid;gap:24px}
    .mini-feature{display:grid;grid-template-columns:130px 1fr;background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:var(--ease)}
    .mini-feature:hover{box-shadow:var(--shadow-sm);transform:translateX(4px)}
    .mini-feature img{width:130px;height:100%;min-height:150px;object-fit:cover}
    .mini-feature div{padding:19px}
    .mini-feature h3{font-size:18px;margin-bottom:7px}
    .mini-feature p{color:var(--muted);font-size:14px;margin-bottom:9px}
    .tag{display:inline-flex;align-items:center;padding:5px 10px;border-radius:30px;background:#e5f6f8;color:var(--blue);font-size:12px;font-weight:800}
    .numbers{padding:60px 0;background:#fff}
    .number-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .number-item{padding:23px 20px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(145deg,#fff,#f7fbfc)}
    .number-item strong{display:block;color:var(--blue);font-size:35px;line-height:1.1;margin-bottom:8px}
    .number-item span{color:var(--muted);font-size:14px}
    .method-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:72px;align-items:start}
    .method-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .method-item{padding:22px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow-sm)}
    .method-item .step{width:34px;height:34px;display:grid;place-items:center;background:var(--sky);color:var(--blue);border-radius:10px;font-weight:900;margin-bottom:15px}
    .method-item h3{font-size:18px;margin-bottom:8px}
    .method-item p{font-size:14px;color:var(--muted);margin:0}
    .timeline-section{background:var(--navy);color:#fff}
    .timeline-section h2,.timeline-section h3{color:#fff}
    .timeline-section .section-head p{color:#b9d4df}
    .timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .timeline:before{content:"";position:absolute;top:18px;left:4%;right:4%;height:1px;background:rgba(139,225,228,.3)}
    .time-item{position:relative;padding-top:50px}
    .time-item:before{content:"";position:absolute;top:10px;left:0;width:18px;height:18px;border:4px solid var(--navy);background:var(--cyan);border-radius:50%;box-shadow:0 0 0 1px var(--cyan)}
    .time-item small{color:#8be1e4;font-weight:800}
    .time-item p{color:#b9d4df;font-size:14px}
    .evidence-layout{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .evidence-box{padding:30px;border-radius:20px;background:var(--sky);border:1px solid #d2edf2}
    .evidence-box.white{background:#fff;border-color:var(--line);box-shadow:var(--shadow-sm)}
    .evidence-box h3{margin-bottom:14px}
    .evidence-box p{color:var(--muted)}
    .evidence-list{list-style:none;padding:0;margin:18px 0 0}
    .evidence-list li{display:flex;gap:11px;padding:10px 0;border-bottom:1px solid rgba(220,232,239,.8);font-size:14px}
    .evidence-list li:last-child{border-bottom:0}
    .evidence-list b{color:var(--green)}
    .faq-section{background:var(--soft)}
    .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px}
    .faq-intro p{color:var(--muted);font-size:17px}
    .accordion{margin:0;border:0;background:transparent}
    .accordion-item{background:#fff;border:1px solid var(--line)!important;border-radius:13px!important;margin-bottom:12px;overflow:hidden}
    .accordion-title{border:0!important;color:var(--navy);font-weight:800;font-size:16px;padding:19px 48px 19px 20px}
    .accordion-title:hover{background:var(--sky);color:var(--blue)}
    .accordion-content{border:0!important;color:var(--muted);font-size:14px;padding:0 20px 20px}
    .cta-section{padding:70px 0}
    .cta-box{border-radius:24px;padding:45px 52px;background:linear-gradient(105deg,var(--blue),#128d9f);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:28px;box-shadow:var(--shadow)}
    .cta-box h2{color:#fff;margin-bottom:12px}
    .cta-box p{color:#d9f2f3;max-width:700px;margin:0}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap}
    .site-footer{background:#0b2237;color:#b8ced8;padding:62px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:42px;padding-bottom:45px}
    .footer-brand .brand-name{color:#fff}
    .footer-brand p{max-width:310px;margin-top:18px;font-size:14px}
    .footer-col{display:flex;flex-direction:column;gap:9px}
    .footer-col h3{font-size:15px;color:#fff;margin-bottom:9px}
    .footer-col a{font-size:14px;color:#b8ced8}
    .footer-col a:hover{color:#8be1e4}
    .footer-bottom{border-top:1px solid rgba(184,206,216,.17);padding-top:20px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;font-size:12px;color:#8faab6}
    .footer-bottom a:hover{color:#fff}
    :focus-visible{outline:3px solid rgba(33,182,199,.45);outline-offset:3px}
    @media(max-width:1024px){
      .nav-shell{gap:14px}.brand{min-width:170px}
      .nav-tools .btn{display:none}
      .inner-grid,.intro-layout,.method-layout,.faq-grid{grid-template-columns:1fr;gap:38px}
      .inner-hero{padding:64px 0}
      .topic-board{max-width:620px;transform:none}
      .feature-layout{grid-template-columns:1fr}
      .number-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 30px))}
      .nav-shell{height:68px}
      .nav-links{display:none;position:absolute;left:15px;right:15px;top:75px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 14px}
      .menu-toggle{display:block}
      .status{display:none}
      .section{padding:66px 0}
      .inner-hero h1{font-size:43px}
      .timeline{grid-template-columns:repeat(2,1fr);gap:28px}
      .timeline:before{display:none}
      .cta-box{padding:34px 25px;display:block}
      .cta-actions{margin-top:24px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
    }
    @media(max-width:520px){
      h2{font-size:30px}
      .inner-hero{padding:50px 0 56px}
      .inner-hero h1{font-size:37px}
      .inner-hero p{font-size:16px}
      .topic-board{padding:18px}
      .board-feature{grid-template-columns:72px 1fr}
      .board-feature img{width:72px;height:90px}
      .mini-feature{grid-template-columns:100px 1fr}
      .mini-feature img{width:100px}
      .mini-feature div{padding:15px}
      .mini-feature h3{font-size:16px}
      .number-grid,.method-list,.evidence-layout,.timeline{grid-template-columns:1fr}
      .number-item strong{font-size:30px}
      .topic-image{height:270px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-bottom:8px}
    }

/* roulang page: category2 */
:root{
      --navy:#102a43;
      --blue:#1769aa;
      --cyan:#21b6c7;
      --sky:#eaf6fb;
      --ink:#142534;
      --muted:#647789;
      --line:#dce8ef;
      --paper:#fff;
      --soft:#f5f9fb;
      --orange:#f29d49;
      --green:#2fb477;
      --red:#df6d61;
      --radius:20px;
      --radius-sm:12px;
      --shadow:0 18px 45px rgba(25,62,90,.10);
      --shadow-sm:0 8px 24px rgba(25,62,90,.08);
      --container:1220px;
      --ease:all .28s ease;
    }
    *{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:1.75;
      font-size:16px;
      overflow-x:hidden;
    }
    h1,h2,h3,h4,p{margin-top:0}
    h1,h2,h3,h4{color:var(--navy);font-weight:900;letter-spacing:-.035em}
    h1{font-size:clamp(38px,5vw,66px);line-height:1.14}
    h2{font-size:clamp(28px,3.3vw,44px);line-height:1.25}
    h3{font-size:21px;line-height:1.35}
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--blue);
      font-size:13px;
      font-weight:800;
      letter-spacing:.12em;
    }
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--cyan);display:inline-block}
    .section{padding:92px 0}
    .section-head{max-width:750px;margin-bottom:38px}
    .section-head h2{margin:12px 0 14px}
    .section-head p{font-size:17px;color:var(--muted)}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:0 21px;
      border-radius:12px;
      border:1px solid transparent;
      font-weight:800;
      transition:var(--ease);
      white-space:nowrap;
    }
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 10px 22px rgba(23,105,170,.2)}
    .btn-primary:hover{background:var(--navy);transform:translateY(-2px);color:#fff}
    .btn-secondary{background:#fff;color:var(--blue);border-color:#bad8e5}
    .btn-secondary:hover{border-color:var(--blue);background:var(--sky);color:var(--navy)}
    .btn-light{background:#fff;color:var(--navy)}
    .btn-light:hover{background:#dff5f7;transform:translateY(-2px)}
    .site-header{
      position:sticky;top:0;z-index:30;
      background:rgba(255,255,255,.94);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(220,232,239,.85);
    }
    .nav-shell{height:76px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;min-width:190px}
    .brand-mark{
      width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
      color:#fff;font-size:18px;font-weight:900;
      background:linear-gradient(145deg,var(--blue),var(--cyan));
      box-shadow:0 8px 16px rgba(23,105,170,.18);
    }
    .brand-name{font-size:21px;font-weight:900;letter-spacing:-.04em;color:var(--navy)}
    .nav-links{display:flex;align-items:center;gap:4px;flex:1;overflow-x:auto}
    .nav-links::-webkit-scrollbar{display:none}
    .nav-links a{
      padding:10px 12px;border-radius:10px;color:#586d7d;font-size:14px;
      white-space:nowrap;font-weight:700;
    }
    .nav-links a:hover,.nav-links a.active{background:var(--sky);color:var(--blue)}
    .nav-tools{display:flex;align-items:center;gap:14px}
    .status{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:13px;white-space:nowrap}
    .status i{display:block;width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px rgba(47,180,119,.13)}
    .menu-toggle{display:none;background:none;border:0;color:var(--navy);font-size:24px}
    .inner-hero{
      position:relative;
      color:#fff;
      min-height:470px;
      display:flex;
      align-items:center;
      background:
        linear-gradient(90deg,rgba(10,39,63,.96),rgba(17,77,103,.78),rgba(17,77,103,.36)),
        url("/assets/images/backpic/back-2.webp") center/cover;
    }
    .inner-hero:after{
      content:"";position:absolute;left:0;right:0;bottom:0;height:70px;
      background:linear-gradient(transparent,#fff);
    }
    .inner-copy{position:relative;z-index:1;max-width:760px;padding:70px 0 85px}
    .inner-copy .eyebrow{color:#9be7e8}
    .inner-copy h1{color:#fff;margin:15px 0 20px}
    .inner-copy p{color:#d9edf2;font-size:18px;max-width:700px}
    .crumbs{display:flex;gap:8px;align-items:center;color:#bce1e7;font-size:14px;margin-bottom:18px}
    .crumbs a:hover{color:#fff}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:28px}
    .summary-strip{margin-top:-45px;position:relative;z-index:2}
    .summary-card{
      background:#fff;border:1px solid var(--line);border-radius:18px;
      box-shadow:var(--shadow);padding:23px 26px;display:flex;
      align-items:center;justify-content:space-between;gap:20px;
    }
    .summary-card strong{display:block;color:var(--navy);font-size:28px;line-height:1.1}
    .summary-card span{color:var(--muted);font-size:14px}
    .summary-divider{width:1px;height:48px;background:var(--line)}
    .feature-layout{display:grid;grid-template-columns:.88fr 1.12fr;gap:58px;align-items:center}
    .feature-image{position:relative;border-radius:24px;overflow:hidden;box-shadow:var(--shadow)}
    .feature-image img{width:100%;height:440px;object-fit:cover}
    .image-caption{
      position:absolute;left:18px;bottom:18px;background:rgba(16,42,67,.86);
      color:#fff;padding:12px 16px;border-radius:12px;font-size:14px
    }
    .feature-copy p{color:var(--muted);font-size:17px}
    .check-list{list-style:none;margin:24px 0 0;padding:0}
    .check-list li{position:relative;padding:11px 0 11px 31px;border-bottom:1px solid var(--line);color:#3c5566}
    .check-list li:before{
      content:"✓";position:absolute;left:0;top:10px;width:21px;height:21px;
      border-radius:50%;background:#ddf6f4;color:#138e98;text-align:center;font-weight:900;line-height:21px
    }
    .metric-section{background:var(--soft)}
    .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .metric-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:var(--shadow-sm)}
    .metric-card .metric-icon{width:42px;height:42px;border-radius:13px;background:var(--sky);display:grid;place-items:center;color:var(--blue);font-weight:900;margin-bottom:21px}
    .metric-card strong{font-size:34px;color:var(--navy);display:block;line-height:1.1}
    .metric-card span{font-size:14px;color:var(--muted)}
    .split-section{display:grid;grid-template-columns:1.05fr .95fr;gap:65px;align-items:start}
    .data-board{border:1px solid var(--line);border-radius:22px;overflow:hidden;background:#fff;box-shadow:var(--shadow)}
    .board-top{padding:23px 25px;background:var(--navy);color:#fff;display:flex;justify-content:space-between;align-items:center}
    .board-top h3{color:#fff;margin:0;font-size:19px}
    .board-top span{font-size:13px;color:#b8dce4}
    .player-row{display:grid;grid-template-columns:1.6fr .8fr .8fr .8fr;gap:12px;align-items:center;padding:17px 24px;border-bottom:1px solid var(--line)}
    .player-row:last-child{border-bottom:0}
    .player{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--navy)}
    .avatar{width:38px;height:38px;border-radius:12px;background:var(--sky);display:grid;place-items:center;color:var(--blue);font-weight:900}
    .player small{display:block;color:var(--muted);font-weight:400;font-size:12px}
    .data-number{font-weight:900;color:var(--blue);font-size:18px}
    .data-label{display:block;font-size:12px;color:var(--muted)}
    .insight-box{background:var(--sky);border-radius:20px;padding:29px 31px;border:1px solid #d6edf2}
    .insight-box h3{margin-bottom:12px}
    .insight-box p{color:#536c7b;margin-bottom:20px}
    .insight-points{display:grid;gap:13px}
    .insight-point{display:flex;gap:12px;align-items:flex-start}
    .insight-point b{color:var(--blue);font-size:14px;min-width:74px}
    .insight-point span{color:#526978;font-size:14px}
    .compare-section{background:#102a43;color:#fff}
    .compare-section h2,.compare-section h3{color:#fff}
    .compare-section .section-head p{color:#bcd4dc}
    .compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .compare-card{background:#173b59;border:1px solid rgba(177,224,231,.18);border-radius:20px;padding:28px}
    .compare-card header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
    .compare-card header span{color:#8edce1;font-size:13px}
    .bar-item{margin:17px 0}
    .bar-meta{display:flex;justify-content:space-between;font-size:14px;color:#d7e8ed;margin-bottom:7px}
    .bar-track{height:8px;border-radius:10px;background:#28516d;overflow:hidden}
    .bar-fill{height:100%;background:linear-gradient(90deg,var(--cyan),#8de2d2);border-radius:10px}
    .use-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}
    .use-main{background:#f0fafb;border:1px solid #d5edf0;border-radius:22px;padding:31px}
    .use-main h3{font-size:26px}
    .use-main p{color:var(--muted);max-width:650px}
    .use-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:25px}
    .use-item{background:#fff;border-radius:14px;padding:17px;border:1px solid #dceef0}
    .use-item strong{display:block;color:var(--navy);margin-bottom:5px}
    .use-item span{font-size:13px;color:var(--muted)}
    .use-side{border-radius:22px;overflow:hidden;min-height:300px;position:relative}
    .use-side img{height:100%;width:100%;object-fit:cover}
    .use-side div{position:absolute;inset:auto 0 0;padding:23px;color:#fff;background:linear-gradient(transparent,rgba(10,38,60,.9))}
    .process-section{background:var(--soft)}
    .process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
    .process-card{position:relative;padding:10px 28px 10px 0;margin-right:28px}
    .process-card:not(:last-child):after{content:"→";position:absolute;right:-8px;top:38px;color:var(--cyan);font-size:28px;font-weight:900}
    .process-num{width:40px;height:40px;border-radius:12px;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:900;margin-bottom:18px}
    .process-card p{color:var(--muted);font-size:14px}
    .quote-section{display:grid;grid-template-columns:.72fr 1.28fr;gap:45px;align-items:center}
    .quote-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:30px;box-shadow:var(--shadow-sm)}
    .quote-mark{font-size:58px;line-height:.7;color:var(--cyan);font-family:Georgia,serif}
    .quote-card blockquote{font-size:21px;line-height:1.7;color:var(--navy);font-weight:700;margin:20px 0}
    .quote-card cite{font-style:normal;color:var(--muted);font-size:14px}
    .faq-section{background:#fff}
    .faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:58px}
    .faq-intro p{color:var(--muted)}
    .faq-list{display:grid;gap:12px}
    .faq-item{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff}
    .faq-question{width:100%;background:#fff;border:0;text-align:left;padding:19px 22px;font-weight:800;color:var(--navy);display:flex;justify-content:space-between;align-items:center}
    .faq-question span{font-size:22px;color:var(--blue);transition:var(--ease)}
    .faq-answer{display:none;padding:0 22px 20px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span{transform:rotate(45deg)}
    .cta-section{padding:70px 0}
    .cta-box{
      border-radius:25px;padding:43px 48px;
      background:linear-gradient(110deg,#1769aa,#21aeb8);
      color:#fff;display:flex;align-items:center;justify-content:space-between;gap:30px;
      box-shadow:var(--shadow)
    }
    .cta-box h2{color:#fff;margin-bottom:10px}
    .cta-box p{color:#dff5f5;margin:0;max-width:650px}
    .site-footer{background:#0c2237;color:#a8c0cc;padding:62px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:40px}
    .footer-brand .brand-name{color:#fff}
    .footer-brand p{margin-top:18px;max-width:300px;font-size:14px;line-height:1.8}
    .footer-col{display:flex;flex-direction:column;gap:9px}
    .footer-col h3{color:#fff;font-size:15px;margin-bottom:9px}
    .footer-col a{font-size:14px;color:#a8c0cc}
    .footer-col a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(207,235,239,.15);margin-top:45px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:12px}
    .footer-bottom a:hover{color:#fff}
    :focus-visible{outline:3px solid rgba(33,182,199,.45);outline-offset:3px}
    @media(max-width:1024px){
      .nav-shell{gap:15px}.brand{min-width:170px}
      .nav-tools .btn{display:none}
      .feature-layout,.split-section,.quote-section,.faq-grid{grid-template-columns:1fr;gap:35px}
      .metric-grid{grid-template-columns:repeat(2,1fr)}
      .process-grid{grid-template-columns:repeat(2,1fr);gap:25px}
      .process-card{margin-right:0}.process-card:after{display:none}
    }
    @media(max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .section{padding:65px 0}
      .nav-shell{height:68px}
      .nav-links{display:none;position:absolute;left:14px;right:14px;top:74px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.show{display:flex}
      .nav-links a{padding:12px 15px}
      .menu-toggle{display:block}
      .status{display:none}
      .inner-hero{min-height:450px}
      .inner-copy{padding:62px 0 80px}
      .summary-card{display:grid;grid-template-columns:1fr 1fr;padding:20px}
      .summary-divider{display:none}
      .summary-card>div{padding:8px 0}
      .compare-grid,.use-grid{grid-template-columns:1fr}
      .use-side{min-height:260px}
      .cta-box{padding:32px 25px;display:block}
      .cta-box .btn{margin-top:23px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
    }
    @media(max-width:520px){
      h1{font-size:38px}.inner-copy p{font-size:16px}
      .metric-grid,.use-list,.process-grid{grid-template-columns:1fr}
      .summary-card{grid-template-columns:1fr 1fr;gap:8px}
      .feature-image img{height:290px}
      .player-row{grid-template-columns:1.45fr .7fr .7fr;padding:14px 15px}
      .player-row .hide-small{display:none}
      .data-board .board-top{padding:19px 16px}
      .insight-box,.use-main,.compare-card,.quote-card{padding:23px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:10px}
    }