/* roulang page: index */
:root{
      --pp-primary:#6657ff;
      --pp-primary-dark:#4738e8;
      --pp-secondary:#18c7a7;
      --pp-accent:#ffb23f;
      --pp-ink:#10142a;
      --pp-text:#2c3248;
      --pp-muted:#69718a;
      --pp-soft:#f6f7ff;
      --pp-soft-2:#eefbf7;
      --pp-white:#ffffff;
      --pp-border:rgba(20,24,48,.10);
      --pp-shadow:0 18px 48px rgba(35,42,88,.12);
      --pp-shadow-soft:0 10px 28px rgba(35,42,88,.08);
      --pp-radius-lg:28px;
      --pp-radius-md:20px;
      --pp-radius-sm:14px;
      --pp-header-h:78px;
    }

    *{box-sizing:border-box;}
    html{scroll-behavior:smooth;}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--pp-text);
      background:
        radial-gradient(circle at 12% 8%, rgba(102,87,255,.12), transparent 28%),
        radial-gradient(circle at 88% 12%, rgba(24,199,167,.10), transparent 30%),
        linear-gradient(180deg,#fbfcff 0%,#ffffff 42%,#f8f9ff 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{
      color:inherit;
      text-decoration:none;
      transition:color .22s ease, background .22s ease, border-color .22s ease, transform .22s ease, box-shadow .22s ease;
    }
    a:hover{color:var(--pp-primary);}
    img{max-width:100%;height:auto;display:block;}
    button,input,textarea{font:inherit;}
    ::selection{background:rgba(102,87,255,.18);color:var(--pp-ink);}
    .container{max-width:1180px;}
    .text-gradient{
      background:linear-gradient(135deg,var(--pp-primary),#8f5cff 42%,var(--pp-secondary));
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .section{
      padding:88px 0;
      position:relative;
    }
    .section-tight{padding:64px 0;}
    .section-title{
      color:var(--pp-ink);
      font-weight:850;
      letter-spacing:-.03em;
      line-height:1.18;
      margin-bottom:14px;
      font-size:clamp(2rem,3.6vw,3.15rem);
    }
    .section-lead{
      color:var(--pp-muted);
      font-size:1.06rem;
      max-width:760px;
      margin:0 auto 34px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 13px;
      border-radius:999px;
      background:rgba(102,87,255,.10);
      color:var(--pp-primary-dark);
      font-weight:800;
      font-size:.88rem;
      margin-bottom:16px;
      border:1px solid rgba(102,87,255,.15);
    }
    .eyebrow i{font-size:.78rem;}
    .btn-pp{
      border:0;
      color:#fff!important;
      font-weight:800;
      border-radius:999px;
      padding:13px 22px;
      background:linear-gradient(135deg,var(--pp-primary),var(--pp-primary-dark));
      box-shadow:0 12px 24px rgba(102,87,255,.28);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
    }
    .btn-pp:hover{
      transform:translateY(-2px);
      box-shadow:0 18px 36px rgba(102,87,255,.34);
      color:#fff!important;
    }
    .btn-pp:focus-visible,.btn-ghost:focus-visible,.nav-chip:focus-visible,.form-control:focus{
      outline:3px solid rgba(102,87,255,.22);
      outline-offset:3px;
      box-shadow:none;
    }
    .btn-ghost{
      border:1px solid var(--pp-border);
      color:var(--pp-ink)!important;
      font-weight:800;
      border-radius:999px;
      padding:13px 20px;
      background:rgba(255,255,255,.78);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
    }
    .btn-ghost:hover{
      background:#fff;
      transform:translateY(-2px);
      box-shadow:var(--pp-shadow-soft);
      color:var(--pp-primary-dark)!important;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      backdrop-filter:saturate(160%) blur(18px);
      background:rgba(255,255,255,.84);
      border-bottom:1px solid rgba(20,24,48,.08);
    }
    .nav-wrap{
      min-height:var(--pp-header-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:14px 0;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      flex:0 0 auto;
    }
    .brand-mark{
      width:44px;
      height:44px;
      border-radius:16px;
      background:
        linear-gradient(135deg,rgba(255,255,255,.28),transparent),
        linear-gradient(135deg,var(--pp-primary),var(--pp-secondary));
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:950;
      box-shadow:0 12px 28px rgba(102,87,255,.26);
      letter-spacing:-.05em;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.15;
    }
    .brand-name{
      color:var(--pp-ink);
      font-weight:950;
      font-size:1.18rem;
      letter-spacing:-.03em;
    }
    .brand-sub{
      color:var(--pp-muted);
      font-size:.78rem;
      margin-top:3px;
    }
    .chip-nav{
      flex:1 1 auto;
      display:flex;
      justify-content:center;
      min-width:0;
    }
    .chip-scroll{
      display:flex;
      align-items:center;
      gap:8px;
      padding:7px;
      border-radius:999px;
      background:rgba(246,247,255,.86);
      border:1px solid rgba(20,24,48,.08);
      overflow-x:auto;
      scrollbar-width:none;
      max-width:100%;
    }
    .chip-scroll::-webkit-scrollbar{display:none;}
    .nav-chip{
      white-space:nowrap;
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 15px;
      border-radius:999px;
      color:var(--pp-muted);
      font-weight:800;
      font-size:.94rem;
    }
    .nav-chip:hover{
      color:var(--pp-primary-dark);
      background:rgba(255,255,255,.9);
    }
    .nav-chip.active{
      color:#fff;
      background:linear-gradient(135deg,var(--pp-primary),var(--pp-primary-dark));
      box-shadow:0 10px 22px rgba(102,87,255,.22);
    }
    .header-action{
      display:flex;
      align-items:center;
      gap:10px;
      flex:0 0 auto;
    }
    .mini-search{
      width:190px;
      height:42px;
      display:flex;
      align-items:center;
      gap:8px;
      padding:0 12px;
      border:1px solid var(--pp-border);
      border-radius:999px;
      background:#fff;
      color:var(--pp-muted);
      box-shadow:0 8px 22px rgba(35,42,88,.05);
    }
    .mini-search span{
      font-size:.86rem;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .header-action .btn-pp{padding:10px 16px;min-height:42px;font-size:.92rem;}

    .hero{
      padding:70px 0 44px;
      min-height:calc(100vh - var(--pp-header-h));
      display:flex;
      align-items:center;
    }
    .hero-grid{
      align-items:center;
      row-gap:40px;
    }
    .hero h1{
      color:var(--pp-ink);
      font-size:clamp(2.4rem,5.2vw,5rem);
      line-height:1.05;
      letter-spacing:-.06em;
      font-weight:950;
      margin:0 0 22px;
    }
    .hero-desc{
      color:var(--pp-muted);
      font-size:1.13rem;
      max-width:650px;
      margin-bottom:28px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-bottom:30px;
    }
    .hero-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .hero-tags li{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:8px 12px;
      border-radius:999px;
      color:var(--pp-muted);
      background:#fff;
      border:1px solid var(--pp-border);
      box-shadow:0 8px 20px rgba(35,42,88,.05);
      font-weight:700;
      font-size:.9rem;
    }
    .hero-tags i{color:var(--pp-secondary);}
    .hero-panel{
      position:relative;
      border-radius:34px;
      padding:20px;
      background:linear-gradient(180deg,rgba(255,255,255,.9),rgba(255,255,255,.65));
      border:1px solid rgba(20,24,48,.08);
      box-shadow:var(--pp-shadow);
    }
    .hero-panel::before{
      content:"";
      position:absolute;
      inset:-18px;
      z-index:-1;
      border-radius:44px;
      background:linear-gradient(135deg,rgba(102,87,255,.18),rgba(24,199,167,.14),rgba(255,178,63,.12));
      filter:blur(8px);
    }
    .cover-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:14px;
    }
    .feature-cover{
      min-height:250px;
      border-radius:26px;
      padding:22px;
      background:
        linear-gradient(145deg,rgba(16,20,42,.18),rgba(16,20,42,.72)),
        radial-gradient(circle at 25% 25%,rgba(255,255,255,.30),transparent 28%),
        linear-gradient(135deg,#6657ff,#18c7a7);
      color:#fff;
      overflow:hidden;
      position:relative;
    }
    .feature-cover::after{
      content:"";
      position:absolute;
      width:190px;
      height:190px;
      right:-70px;
      bottom:-70px;
      border-radius:50%;
      background:rgba(255,255,255,.16);
    }
    .feature-cover .cover-kicker{
      display:inline-flex;
      padding:7px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.18);
      font-weight:800;
      font-size:.82rem;
      margin-bottom:72px;
    }
    .feature-cover h2{
      position:relative;
      z-index:1;
      font-size:1.55rem;
      font-weight:900;
      line-height:1.25;
      margin:0 0 10px;
    }
    .feature-cover p{
      position:relative;
      z-index:1;
      margin:0;
      color:rgba(255,255,255,.82);
      font-size:.95rem;
    }
    .side-stack{
      display:grid;
      gap:14px;
    }
    .mini-card{
      border-radius:24px;
      padding:18px;
      background:#fff;
      border:1px solid var(--pp-border);
      box-shadow:var(--pp-shadow-soft);
    }
    .mini-card strong{
      display:block;
      color:var(--pp-ink);
      font-weight:900;
      margin-bottom:6px;
    }
    .mini-card p{
      color:var(--pp-muted);
      margin:0;
      font-size:.92rem;
    }
    .update-strip{
      margin-top:14px;
      border-radius:22px;
      padding:14px 16px;
      background:#10142a;
      color:#fff;
      display:flex;
      align-items:center;
      gap:12px;
      overflow:hidden;
    }
    .update-strip .dot{
      width:10px;
      height:10px;
      border-radius:50%;
      background:var(--pp-secondary);
      box-shadow:0 0 0 6px rgba(24,199,167,.16);
      flex:0 0 auto;
    }
    .update-strip span{
      color:rgba(255,255,255,.78);
      font-size:.92rem;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }

    .stat-band{
      margin-top:28px;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
    }
    .stat-card{
      background:#fff;
      border:1px solid var(--pp-border);
      border-radius:22px;
      padding:18px 16px;
      box-shadow:var(--pp-shadow-soft);
    }
    .stat-card b{
      display:block;
      color:var(--pp-ink);
      font-size:1.8rem;
      line-height:1;
      font-weight:950;
      letter-spacing:-.04em;
    }
    .stat-card span{
      display:block;
      margin-top:8px;
      color:var(--pp-muted);
      font-size:.9rem;
    }

    .entry-card,.solution-card,.rank-card,.proof-card,.faq-card,.form-panel{
      border:1px solid var(--pp-border);
      border-radius:var(--pp-radius-md);
      background:rgba(255,255,255,.86);
      box-shadow:var(--pp-shadow-soft);
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
      height:100%;
    }
    .entry-card:hover,.solution-card:hover,.rank-card:hover,.proof-card:hover{
      transform:translateY(-5px);
      box-shadow:var(--pp-shadow);
      border-color:rgba(102,87,255,.22);
    }
    .entry-card{
      padding:24px;
      overflow:hidden;
      position:relative;
    }
    .entry-card::after{
      content:"";
      position:absolute;
      width:110px;
      height:110px;
      right:-34px;
      top:-34px;
      border-radius:34px;
      background:rgba(102,87,255,.08);
      transform:rotate(18deg);
    }
    .entry-icon{
      width:54px;
      height:54px;
      border-radius:18px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg,rgba(102,87,255,.13),rgba(24,199,167,.13));
      color:var(--pp-primary-dark);
      font-size:1.35rem;
      margin-bottom:18px;
    }
    .entry-card h3,.solution-card h3,.rank-card h3,.proof-card h3{
      color:var(--pp-ink);
      font-weight:900;
      font-size:1.25rem;
      margin-bottom:10px;
    }
    .entry-card p,.solution-card p,.rank-card p,.proof-card p{
      color:var(--pp-muted);
      margin-bottom:18px;
    }
    .inline-link{
      display:inline-flex;
      align-items:center;
      gap:7px;
      color:var(--pp-primary-dark);
      font-weight:850;
    }
    .inline-link:hover{gap:10px;}

    .topic-bar{
      display:flex;
      gap:12px;
      overflow-x:auto;
      padding:3px 2px 18px;
      scrollbar-width:thin;
    }
    .topic-card{
      flex:0 0 260px;
      border-radius:24px;
      padding:20px;
      min-height:180px;
      color:#fff;
      background:linear-gradient(135deg,#6657ff,#8d5cff);
      box-shadow:var(--pp-shadow-soft);
      position:relative;
      overflow:hidden;
    }
    .topic-card:nth-child(2){background:linear-gradient(135deg,#18c7a7,#2ab7df);}
    .topic-card:nth-child(3){background:linear-gradient(135deg,#ffb23f,#ff7a59);}
    .topic-card:nth-child(4){background:linear-gradient(135deg,#10142a,#46506d);}
    .topic-card::after{
      content:"";
      position:absolute;
      width:120px;
      height:120px;
      border-radius:50%;
      right:-40px;
      bottom:-40px;
      background:rgba(255,255,255,.16);
    }
    .topic-card .badge-soft{
      display:inline-flex;
      padding:6px 9px;
      border-radius:999px;
      background:rgba(255,255,255,.18);
      font-weight:800;
      font-size:.78rem;
      margin-bottom:34px;
    }
    .topic-card h3{
      font-weight:900;
      font-size:1.18rem;
      margin-bottom:8px;
    }
    .topic-card p{
      color:rgba(255,255,255,.82);
      margin:0;
      font-size:.92rem;
    }

    .dark-section{
      background:
        radial-gradient(circle at 15% 20%,rgba(102,87,255,.28),transparent 30%),
        radial-gradient(circle at 85% 10%,rgba(24,199,167,.20),transparent 28%),
        #10142a;
      color:#fff;
      border-radius:40px;
      margin:0 18px;
      overflow:hidden;
    }
    .dark-section .section-title{color:#fff;}
    .dark-section .section-lead{color:rgba(255,255,255,.68);}
    .solution-card{
      background:rgba(255,255,255,.08);
      border-color:rgba(255,255,255,.14);
      box-shadow:none;
      padding:24px;
      color:#fff;
    }
    .solution-card h3{color:#fff;}
    .solution-card p{color:rgba(255,255,255,.70);}
    .solution-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .solution-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:rgba(255,255,255,.82);
      font-size:.94rem;
    }
    .solution-list i{
      color:var(--pp-secondary);
      margin-top:5px;
    }

    .rank-list{
      display:grid;
      gap:14px;
    }
    .rank-card{
      padding:18px;
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:16px;
      align-items:center;
    }
    .rank-num{
      width:46px;
      height:46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:var(--pp-soft);
      color:var(--pp-primary-dark);
      font-weight:950;
      font-size:1.1rem;
    }
    .rank-card h3{
      margin:0 0 4px;
      font-size:1.08rem;
    }
    .rank-card p{margin:0;font-size:.92rem;}
    .rank-tag{
      border-radius:999px;
      background:rgba(24,199,167,.12);
      color:#07957d;
      padding:7px 10px;
      font-weight:800;
      font-size:.82rem;
      white-space:nowrap;
    }

    .proof-card{
      padding:24px;
    }
    .proof-meta{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:16px;
    }
    .avatar{
      width:46px;
      height:46px;
      border-radius:50%;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--pp-primary),var(--pp-secondary));
      font-weight:900;
    }
    .proof-meta strong{
      color:var(--pp-ink);
      display:block;
      line-height:1.2;
    }
    .proof-meta span{
      color:var(--pp-muted);
      font-size:.86rem;
    }
    .stars{color:#ffb23f;letter-spacing:2px;margin-bottom:12px;}

    .process{
      position:relative;
    }
    .process-step{
      display:flex;
      gap:18px;
      padding:22px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--pp-border);
      box-shadow:var(--pp-shadow-soft);
      height:100%;
    }
    .step-dot{
      width:44px;
      height:44px;
      border-radius:16px;
      flex:0 0 auto;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--pp-primary),var(--pp-primary-dark));
      font-weight:950;
      box-shadow:0 10px 20px rgba(102,87,255,.22);
    }
    .process-step h3{
      color:var(--pp-ink);
      font-size:1.12rem;
      font-weight:900;
      margin-bottom:8px;
    }
    .process-step p{
      color:var(--pp-muted);
      margin:0;
      font-size:.95rem;
    }

    .faq-card{
      padding:8px;
      overflow:hidden;
    }
    .accordion-item{
      border:0;
      border-bottom:1px solid var(--pp-border);
      background:transparent;
    }
    .accordion-item:last-child{border-bottom:0;}
    .accordion-button{
      padding:20px 18px;
      font-weight:900;
      color:var(--pp-ink);
      background:#fff;
      border-radius:16px!important;
      box-shadow:none!important;
    }
    .accordion-button:not(.collapsed){
      color:var(--pp-primary-dark);
      background:var(--pp-soft);
    }
    .accordion-button:focus{box-shadow:none;border-color:transparent;}
    .accordion-body{
      color:var(--pp-muted);
      padding:0 18px 20px;
    }

    .cta-panel{
      border-radius:36px;
      padding:42px;
      background:
        linear-gradient(135deg,rgba(102,87,255,.94),rgba(24,199,167,.88)),
        radial-gradient(circle at 20% 15%,rgba(255,255,255,.28),transparent 30%);
      color:#fff;
      box-shadow:var(--pp-shadow);
      overflow:hidden;
      position:relative;
    }
    .cta-panel::after{
      content:"";
      position:absolute;
      width:260px;
      height:260px;
      right:-90px;
      bottom:-120px;
      border-radius:50%;
      background:rgba(255,255,255,.15);
    }
    .cta-panel h2{
      font-size:clamp(1.9rem,3.8vw,3.2rem);
      font-weight:950;
      letter-spacing:-.04em;
      line-height:1.15;
      margin-bottom:14px;
      position:relative;
      z-index:1;
    }
    .cta-panel p{
      color:rgba(255,255,255,.82);
      max-width:660px;
      margin-bottom:24px;
      position:relative;
      z-index:1;
    }
    .cta-panel .btn-ghost{
      background:#fff;
      color:var(--pp-primary-dark)!important;
      border-color:rgba(255,255,255,.5);
      position:relative;
      z-index:1;
    }
    .form-panel{
      padding:24px;
      background:#fff;
    }
    .form-label{
      color:var(--pp-ink);
      font-weight:850;
      margin-bottom:8px;
    }
    .form-control,.form-select{
      border-radius:16px;
      border:1px solid var(--pp-border);
      padding:12px 14px;
      color:var(--pp-text);
      background:#fbfcff;
    }
    .form-control::placeholder{color:#9aa1b4;}
    .form-control:focus,.form-select:focus{
      border-color:rgba(102,87,255,.45);
      box-shadow:0 0 0 .22rem rgba(102,87,255,.10);
      background:#fff;
    }
    .form-hint{
      color:var(--pp-muted);
      font-size:.86rem;
      margin-top:10px;
    }

    .site-footer{
      background:#0c1023;
      color:rgba(255,255,255,.72);
      padding:58px 0 24px;
    }
    .footer-brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      margin-bottom:16px;
    }
    .footer-brand .brand-mark{width:42px;height:42px;border-radius:15px;}
    .footer-brand strong{
      color:#fff;
      font-weight:950;
      font-size:1.15rem;
    }
    .footer-desc{
      max-width:460px;
      color:rgba(255,255,255,.62);
      margin-bottom:20px;
    }
    .footer-title{
      color:#fff;
      font-weight:900;
      margin-bottom:14px;
    }
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:rgba(255,255,255,.64);
      display:inline-flex;
      gap:8px;
      align-items:center;
    }
    .footer-links a:hover{
      color:#fff;
      transform:translateX(3px);
    }
    .footer-bottom{
      border-top:1px solid rgba(255,255,255,.10);
      margin-top:34px;
      padding-top:20px;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      color:rgba(255,255,255,.50);
      font-size:.9rem;
    }

    @media (max-width:1024px){
      :root{--pp-header-h:72px;}
      .nav-wrap{flex-wrap:wrap;}
      .brand{order:1;}
      .header-action{order:2;}
      .chip-nav{order:3;flex-basis:100%;justify-content:flex-start;}
      .chip-scroll{width:100%;border-radius:22px;}
      .mini-search{display:none;}
      .hero{padding-top:46px;}
      .stat-band{grid-template-columns:repeat(2,1fr);}
      .dark-section{border-radius:32px;margin:0 12px;}
    }
    @media (max-width:768px){
      .section{padding:66px 0;}
      .section-tight{padding:50px 0;}
      .hero h1{font-size:clamp(2.15rem,11vw,3.4rem);}
      .hero-desc{font-size:1rem;}
      .cover-grid{grid-template-columns:1fr;}
      .feature-cover{min-height:230px;}
      .feature-cover .cover-kicker{margin-bottom:52px;}
      .rank-card{grid-template-columns:auto 1fr;}
      .rank-tag{grid-column:2;justify-self:start;}
      .cta-panel{padding:30px 24px;border-radius:28px;}
      .process-step{padding:18px;}
      .footer-bottom{display:block;}
      .footer-bottom span{display:block;margin-top:8px;}
    }
    @media (max-width:520px){
      .container{padding-left:18px;padding-right:18px;}
      .nav-wrap{gap:12px;}
      .brand-sub{display:none;}
      .brand-mark{width:40px;height:40px;border-radius:14px;}
      .header-action .btn-pp span{display:none;}
      .header-action .btn-pp{width:42px;padding:0;}
      .nav-chip{padding:9px 12px;font-size:.88rem;}
      .hero{padding-top:34px;}
      .hero-actions .btn-pp,.hero-actions .btn-ghost{width:100%;}
      .hero-tags li{width:100%;justify-content:flex-start;}
      .hero-panel{padding:14px;border-radius:28px;}
      .feature-cover{border-radius:22px;padding:18px;}
      .stat-band{grid-template-columns:1fr;}
      .topic-card{flex-basis:230px;}
      .section-title{font-size:2rem;}
      .entry-card,.solution-card,.proof-card,.form-panel{padding:20px;}
      .footer-links{margin-bottom:24px;}
    }

/* roulang page: category1 */
:root {
      --pp-primary: #6c3cff;
      --pp-primary-dark: #4c25d8;
      --pp-secondary: #00c2ff;
      --pp-accent: #ffb72b;
      --pp-pink: #ff4f93;
      --pp-dark: #141129;
      --pp-ink: #23223a;
      --pp-muted: #6f6b83;
      --pp-soft: #f6f4ff;
      --pp-soft-2: #eef9ff;
      --pp-white: #ffffff;
      --pp-border: rgba(108, 60, 255, .14);
      --pp-border-strong: rgba(20, 17, 41, .12);
      --pp-shadow: 0 18px 48px rgba(38, 24, 91, .12);
      --pp-shadow-hover: 0 24px 60px rgba(38, 24, 91, .18);
      --pp-radius-lg: 28px;
      --pp-radius-md: 20px;
      --pp-radius-sm: 14px;
      --pp-transition: all .25s ease;
      --pp-header-height: 84px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      color: var(--pp-ink);
      line-height: 1.75;
      background:
        radial-gradient(circle at 12% 6%, rgba(108, 60, 255, .12), transparent 28%),
        radial-gradient(circle at 88% 12%, rgba(0, 194, 255, .12), transparent 30%),
        linear-gradient(180deg, #ffffff 0%, #fbfaff 42%, #f6f8ff 100%);
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--pp-transition);
    }

    a:hover {
      color: var(--pp-primary);
    }

    img {
      max-width: 100%;
      display: block;
    }

    button,
    input,
    textarea {
      font: inherit;
    }

    ::selection {
      background: rgba(108, 60, 255, .18);
      color: var(--pp-primary-dark);
    }

    .container {
      max-width: 1180px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      padding: 14px 0;
      background: rgba(255, 255, 255, .84);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(108, 60, 255, .1);
    }

    .nav-wrap {
      min-height: 62px;
      display: flex;
      align-items: center;
      gap: 18px;
      justify-content: space-between;
    }

    .brand,
    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: max-content;
    }

    .brand-mark {
      width: 46px;
      height: 46px;
      border-radius: 16px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      letter-spacing: -.5px;
      background: linear-gradient(135deg, var(--pp-primary), var(--pp-secondary));
      box-shadow: 0 14px 32px rgba(108, 60, 255, .24);
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.15;
    }

    .brand-name {
      font-size: 20px;
      font-weight: 900;
      color: var(--pp-dark);
      letter-spacing: -.5px;
    }

    .brand-sub {
      margin-top: 4px;
      font-size: 12px;
      color: var(--pp-muted);
      white-space: nowrap;
    }

    .chip-nav {
      flex: 1;
      min-width: 0;
      display: flex;
      justify-content: center;
    }

    .chip-scroll {
      display: flex;
      gap: 8px;
      padding: 7px;
      max-width: 100%;
      overflow-x: auto;
      scrollbar-width: none;
      border: 1px solid var(--pp-border);
      background: rgba(246, 244, 255, .74);
      border-radius: 999px;
    }

    .chip-scroll::-webkit-scrollbar {
      display: none;
    }

    .nav-chip {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 9px 15px;
      border-radius: 999px;
      color: #57526d;
      font-size: 14px;
      font-weight: 800;
      white-space: nowrap;
    }

    .nav-chip i {
      font-size: 13px;
    }

    .nav-chip:hover {
      color: var(--pp-primary-dark);
      background: rgba(255, 255, 255, .9);
      transform: translateY(-1px);
    }

    .nav-chip.active {
      color: #fff;
      background: linear-gradient(135deg, var(--pp-primary), var(--pp-primary-dark));
      box-shadow: 0 10px 24px rgba(108, 60, 255, .24);
    }

    .header-action {
      display: flex;
      align-items: center;
      gap: 10px;
      min-width: max-content;
    }

    .mini-search {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 42px;
      padding: 0 14px;
      border-radius: 999px;
      background: #fff;
      color: var(--pp-muted);
      font-size: 13px;
      font-weight: 700;
      border: 1px solid var(--pp-border);
      box-shadow: 0 10px 24px rgba(20, 17, 41, .05);
    }

    .mini-search i {
      color: var(--pp-primary);
    }

    .btn-pp {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 44px;
      padding: 11px 18px;
      border-radius: 999px;
      border: 0;
      color: #fff;
      font-weight: 900;
      background: linear-gradient(135deg, var(--pp-primary), var(--pp-secondary));
      box-shadow: 0 16px 34px rgba(108, 60, 255, .24);
      transition: var(--pp-transition);
      cursor: pointer;
    }

    .btn-pp:hover,
    .btn-pp:focus {
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 22px 46px rgba(108, 60, 255, .32);
    }

    .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 44px;
      padding: 11px 18px;
      border-radius: 999px;
      border: 1px solid rgba(108, 60, 255, .2);
      color: var(--pp-primary-dark);
      font-weight: 900;
      background: rgba(255, 255, 255, .82);
      transition: var(--pp-transition);
    }

    .btn-ghost:hover,
    .btn-ghost:focus {
      color: var(--pp-primary-dark);
      transform: translateY(-2px);
      border-color: rgba(108, 60, 255, .34);
      box-shadow: 0 14px 30px rgba(108, 60, 255, .12);
    }

    main {
      position: relative;
    }

    .page-hero {
      position: relative;
      padding: 78px 0 46px;
      overflow: hidden;
    }

    .page-hero::before {
      content: "";
      position: absolute;
      inset: 36px auto auto 3%;
      width: 160px;
      height: 160px;
      border-radius: 50%;
      background: rgba(255, 183, 43, .18);
      filter: blur(16px);
      pointer-events: none;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 13px;
      border-radius: 999px;
      color: var(--pp-primary-dark);
      background: rgba(108, 60, 255, .1);
      border: 1px solid rgba(108, 60, 255, .14);
      font-size: 13px;
      font-weight: 900;
      margin-bottom: 18px;
    }

    .page-title {
      margin: 0;
      color: var(--pp-dark);
      font-size: clamp(38px, 5vw, 68px);
      line-height: 1.06;
      font-weight: 950;
      letter-spacing: -2px;
    }

    .page-title .gradient-text {
      background: linear-gradient(135deg, var(--pp-primary), var(--pp-secondary));
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }

    .hero-lead {
      max-width: 760px;
      margin: 22px 0 0;
      color: #5d5872;
      font-size: 18px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 30px;
    }

    .hero-panel {
      position: relative;
      border-radius: var(--pp-radius-lg);
      background: rgba(255, 255, 255, .86);
      border: 1px solid var(--pp-border);
      box-shadow: var(--pp-shadow);
      padding: 20px;
      overflow: hidden;
    }

    .hero-panel::before {
      content: "";
      position: absolute;
      inset: 0 0 auto;
      height: 6px;
      background: linear-gradient(90deg, var(--pp-primary), var(--pp-secondary), var(--pp-accent));
    }

    .ranking-card {
      padding: 18px;
      border-radius: 22px;
      background:
        linear-gradient(135deg, rgba(108, 60, 255, .08), rgba(0, 194, 255, .06)),
        #fff;
      border: 1px solid rgba(108, 60, 255, .12);
    }

    .rank-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 14px;
    }

    .rank-head strong {
      font-size: 18px;
      color: var(--pp-dark);
    }

    .hot-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 10px;
      border-radius: 999px;
      color: #8a4d00;
      background: rgba(255, 183, 43, .22);
      font-size: 12px;
      font-weight: 900;
    }

    .rank-list {
      display: grid;
      gap: 10px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .rank-list li {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px;
      border-radius: 16px;
      background: rgba(255, 255, 255, .78);
      border: 1px solid rgba(20, 17, 41, .07);
    }

    .rank-num {
      width: 28px;
      height: 28px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 10px;
      color: #fff;
      font-weight: 950;
      background: linear-gradient(135deg, var(--pp-primary), var(--pp-pink));
      flex: 0 0 auto;
    }

    .rank-list span:last-child {
      color: var(--pp-muted);
      font-size: 14px;
      font-weight: 700;
    }

    .section {
      padding: 54px 0;
    }

    .section-tight {
      padding: 34px 0;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 22px;
      margin-bottom: 24px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 10px;
      color: var(--pp-primary-dark);
      font-size: 13px;
      font-weight: 950;
    }

    .section-title {
      margin: 0;
      color: var(--pp-dark);
      font-size: clamp(26px, 3.2vw, 42px);
      line-height: 1.18;
      font-weight: 950;
      letter-spacing: -1px;
    }

    .section-desc {
      max-width: 560px;
      margin: 10px 0 0;
      color: var(--pp-muted);
      font-size: 16px;
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 8px 12px;
      border-radius: 999px;
      background: #fff;
      border: 1px solid var(--pp-border);
      color: #5c5574;
      font-size: 13px;
      font-weight: 850;
      box-shadow: 0 8px 20px rgba(20, 17, 41, .04);
    }

    .feature-card,
    .scene-card,
    .process-card,
    .tip-card {
      height: 100%;
      border-radius: var(--pp-radius-md);
      background: rgba(255, 255, 255, .86);
      border: 1px solid var(--pp-border);
      box-shadow: 0 14px 34px rgba(38, 24, 91, .08);
      transition: var(--pp-transition);
    }

    .feature-card:hover,
    .scene-card:hover,
    .process-card:hover,
    .tip-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--pp-shadow-hover);
      border-color: rgba(108, 60, 255, .25);
    }

    .feature-card {
      padding: 24px;
      overflow: hidden;
      position: relative;
    }

    .feature-card::after {
      content: "";
      position: absolute;
      width: 90px;
      height: 90px;
      right: -34px;
      top: -34px;
      border-radius: 50%;
      background: rgba(0, 194, 255, .12);
    }

    .icon-box {
      width: 52px;
      height: 52px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 18px;
      color: #fff;
      background: linear-gradient(135deg, var(--pp-primary), var(--pp-secondary));
      box-shadow: 0 14px 28px rgba(108, 60, 255, .22);
      margin-bottom: 16px;
      font-size: 20px;
    }

    .feature-card h3,
    .scene-card h3,
    .process-card h3,
    .tip-card h3 {
      margin: 0 0 10px;
      color: var(--pp-dark);
      font-size: 20px;
      font-weight: 950;
    }

    .feature-card p,
    .scene-card p,
    .process-card p,
    .tip-card p {
      margin: 0;
      color: var(--pp-muted);
    }

    .play-board {
      position: relative;
      padding: 26px;
      border-radius: var(--pp-radius-lg);
      background:
        linear-gradient(135deg, rgba(20, 17, 41, .96), rgba(55, 35, 137, .94)),
        var(--pp-dark);
      color: #fff;
      overflow: hidden;
      box-shadow: var(--pp-shadow);
    }

    .play-board::before {
      content: "";
      position: absolute;
      width: 280px;
      height: 280px;
      right: -90px;
      top: -90px;
      border-radius: 50%;
      background: rgba(0, 194, 255, .2);
      filter: blur(4px);
    }

    .play-board > * {
      position: relative;
      z-index: 1;
    }

    .board-grid {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 22px;
      align-items: stretch;
    }

    .board-title {
      margin: 0 0 14px;
      font-size: clamp(24px, 3vw, 38px);
      line-height: 1.16;
      font-weight: 950;
      letter-spacing: -.7px;
    }

    .board-text {
      margin: 0;
      color: rgba(255, 255, 255, .72);
    }

    .step-list {
      margin: 24px 0 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 12px;
    }

    .step-list li {
      display: flex;
      gap: 12px;
      padding: 14px;
      border-radius: 18px;
      background: rgba(255, 255, 255, .08);
      border: 1px solid rgba(255, 255, 255, .12);
      color: rgba(255, 255, 255, .82);
    }

    .step-dot {
      width: 30px;
      height: 30px;
      border-radius: 11px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 auto;
      color: var(--pp-dark);
      background: linear-gradient(135deg, var(--pp-accent), #fff0a8);
      font-weight: 950;
    }

    .metrics-card {
      height: 100%;
      padding: 22px;
      border-radius: 24px;
      background: rgba(255, 255, 255, .1);
      border: 1px solid rgba(255, 255, 255, .14);
    }

    .metric {
      padding: 18px 0;
      border-bottom: 1px solid rgba(255, 255, 255, .12);
    }

    .metric:last-child {
      border-bottom: 0;
      padding-bottom: 0;
    }

    .metric strong {
      display: block;
      font-size: 30px;
      line-height: 1;
      color: #fff;
      font-weight: 950;
    }

    .metric span {
      display: block;
      margin-top: 7px;
      color: rgba(255, 255, 255, .68);
      font-size: 14px;
      font-weight: 700;
    }

    .scene-card {
      padding: 0;
      overflow: hidden;
    }

    .scene-top {
      min-height: 136px;
      padding: 20px;
      background:
        radial-gradient(circle at 20% 20%, rgba(255, 255, 255, .52), transparent 26%),
        linear-gradient(135deg, rgba(108, 60, 255, .16), rgba(0, 194, 255, .14));
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 14px;
    }

    .scene-label {
      display: inline-flex;
      align-items: center;
      padding: 7px 10px;
      border-radius: 999px;
      color: var(--pp-primary-dark);
      background: rgba(255, 255, 255, .78);
      font-size: 12px;
      font-weight: 950;
    }

    .scene-card .icon-box {
      margin: 0;
    }

    .scene-body {
      padding: 22px;
    }

    .check-list {
      display: grid;
      gap: 12px;
      margin: 18px 0 0;
      padding: 0;
      list-style: none;
    }

    .check-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: #5c5870;
      font-weight: 700;
    }

    .check-list i {
      margin-top: 5px;
      color: #18b983;
    }

    .process-card {
      padding: 22px;
      position: relative;
    }

    .process-num {
      width: 40px;
      height: 40px;
      border-radius: 15px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      color: #fff;
      font-weight: 950;
      background: linear-gradient(135deg, var(--pp-primary), var(--pp-pink));
    }

    .tips-shell {
      padding: 26px;
      border-radius: var(--pp-radius-lg);
      border: 1px solid var(--pp-border);
      background: rgba(255, 255, 255, .78);
      box-shadow: var(--pp-shadow);
    }

    .tip-card {
      padding: 22px;
      background:
        linear-gradient(180deg, rgba(255, 255, 255, .95), rgba(246, 244, 255, .72));
    }

    .tip-card .tag {
      margin-bottom: 14px;
      box-shadow: none;
    }

    .accordion {
      --bs-accordion-border-color: transparent;
      --bs-accordion-bg: transparent;
      --bs-accordion-btn-focus-box-shadow: 0 0 0 .2rem rgba(108, 60, 255, .16);
    }

    .faq-item {
      margin-bottom: 12px;
      border-radius: 20px !important;
      overflow: hidden;
      background: rgba(255, 255, 255, .9);
      border: 1px solid var(--pp-border) !important;
      box-shadow: 0 12px 28px rgba(38, 24, 91, .06);
    }

    .accordion-button {
      padding: 18px 20px;
      color: var(--pp-dark);
      font-weight: 950;
      background: transparent;
      border-radius: 20px !important;
    }

    .accordion-button:not(.collapsed) {
      color: var(--pp-primary-dark);
      background: rgba(108, 60, 255, .07);
      box-shadow: none;
    }

    .accordion-button::after {
      filter: hue-rotate(230deg) saturate(1.4);
    }

    .accordion-body {
      padding: 0 20px 20px;
      color: var(--pp-muted);
    }

    .cta-panel {
      position: relative;
      padding: 34px;
      border-radius: 32px;
      overflow: hidden;
      color: #fff;
      background:
        radial-gradient(circle at 18% 22%, rgba(255, 183, 43, .34), transparent 26%),
        radial-gradient(circle at 84% 12%, rgba(0, 194, 255, .28), transparent 28%),
        linear-gradient(135deg, #291a6d, #6c3cff 58%, #00a6df);
      box-shadow: 0 28px 70px rgba(108, 60, 255, .24);
    }

    .cta-panel h2 {
      margin: 0;
      font-size: clamp(26px, 3.6vw, 44px);
      line-height: 1.15;
      font-weight: 950;
      letter-spacing: -.8px;
    }

    .cta-panel p {
      max-width: 680px;
      margin: 14px 0 0;
      color: rgba(255, 255, 255, .78);
      font-size: 17px;
    }

    .contact-card {
      padding: 20px;
      border-radius: 24px;
      background: rgba(255, 255, 255, .12);
      border: 1px solid rgba(255, 255, 255, .18);
    }

    .contact-card label {
      display: block;
      margin-bottom: 8px;
      color: rgba(255, 255, 255, .72);
      font-size: 13px;
      font-weight: 900;
    }

    .contact-field {
      width: 100%;
      min-height: 46px;
      padding: 11px 14px;
      border: 1px solid rgba(255, 255, 255, .18);
      border-radius: 16px;
      color: #fff;
      background: rgba(255, 255, 255, .1);
      outline: none;
      transition: var(--pp-transition);
    }

    .contact-field::placeholder {
      color: rgba(255, 255, 255, .52);
    }

    .contact-field:focus {
      border-color: rgba(255, 255, 255, .55);
      box-shadow: 0 0 0 .2rem rgba(255, 255, 255, .12);
    }

    .site-footer {
      margin-top: 32px;
      padding: 54px 0 24px;
      color: #fff;
      background:
        radial-gradient(circle at 18% 0%, rgba(108, 60, 255, .32), transparent 34%),
        linear-gradient(180deg, #191331, #0f0c20);
    }

    .footer-brand {
      color: #fff;
      margin-bottom: 16px;
    }

    .footer-brand strong {
      font-size: 22px;
      font-weight: 950;
    }

    .footer-desc {
      max-width: 420px;
      margin: 0 0 20px;
      color: rgba(255, 255, 255, .64);
    }

    .footer-title {
      margin: 0 0 14px;
      color: #fff;
      font-size: 16px;
      font-weight: 950;
    }

    .footer-links {
      display: grid;
      gap: 10px;
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .footer-links a {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: rgba(255, 255, 255, .62);
      font-weight: 700;
    }

    .footer-links a:hover {
      color: #fff;
      transform: translateX(3px);
    }

    .footer-links i {
      font-size: 12px;
      color: var(--pp-secondary);
    }

    .footer-bottom {
      margin-top: 38px;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, .1);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      color: rgba(255, 255, 255, .52);
      font-size: 14px;
      flex-wrap: wrap;
    }

    .divider-line {
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(108, 60, 255, .2), transparent);
    }

    @media (max-width: 1024px) {
      .nav-wrap {
        flex-wrap: wrap;
      }

      .chip-nav {
        order: 3;
        flex-basis: 100%;
        justify-content: flex-start;
      }

      .chip-scroll {
        width: 100%;
        border-radius: 22px;
      }

      .header-action {
        margin-left: auto;
      }

      .board-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .site-header {
        padding: 10px 0;
      }

      .nav-wrap {
        gap: 12px;
      }

      .brand-mark {
        width: 42px;
        height: 42px;
        border-radius: 14px;
      }

      .brand-name {
        font-size: 18px;
      }

      .brand-sub,
      .mini-search {
        display: none;
      }

      .header-action {
        gap: 8px;
      }

      .btn-pp,
      .btn-ghost {
        min-height: 42px;
        padding: 10px 14px;
        font-size: 14px;
      }

      .page-hero {
        padding: 52px 0 32px;
      }

      .hero-lead {
        font-size: 16px;
      }

      .section {
        padding: 40px 0;
      }

      .section-head {
        display: block;
      }

      .tag-row {
        margin-top: 16px;
      }

      .play-board,
      .tips-shell,
      .cta-panel {
        padding: 22px;
        border-radius: 24px;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding-left: 18px;
        padding-right: 18px;
      }

      .page-title {
        letter-spacing: -1px;
      }

      .nav-chip {
        padding: 9px 12px;
        font-size: 13px;
      }

      .header-action .btn-pp span {
        display: none;
      }

      .hero-actions {
        flex-direction: column;
      }

      .hero-actions .btn-pp,
      .hero-actions .btn-ghost {
        width: 100%;
      }

      .rank-list li,
      .step-list li {
        align-items: flex-start;
      }

      .footer-bottom {
        display: block;
      }

      .footer-bottom span {
        display: block;
        margin-top: 8px;
        word-break: break-all;
      }
    }

/* roulang page: category2 */
:root{
      --pp-primary:#6c3cff;
      --pp-primary-dark:#4b24d8;
      --pp-secondary:#00d4ff;
      --pp-accent:#ffb84d;
      --pp-danger:#ff5f7e;
      --pp-bg:#f6f7fb;
      --pp-surface:#ffffff;
      --pp-surface-2:#111827;
      --pp-text:#172033;
      --pp-muted:#667085;
      --pp-soft:#eef0ff;
      --pp-line:rgba(23,32,51,.1);
      --pp-line-dark:rgba(255,255,255,.12);
      --pp-radius-sm:12px;
      --pp-radius:20px;
      --pp-radius-lg:30px;
      --pp-shadow:0 18px 55px rgba(42,35,98,.12);
      --pp-shadow-hover:0 24px 70px rgba(42,35,98,.18);
      --pp-container:1180px;
      --pp-transition:all .25s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--pp-text);
      background:
        radial-gradient(circle at 12% 8%, rgba(108,60,255,.12), transparent 32%),
        radial-gradient(circle at 92% 12%, rgba(0,212,255,.12), transparent 28%),
        linear-gradient(180deg,#fbfbff 0%, var(--pp-bg) 45%, #fff 100%);
      line-height:1.7;
      overflow-x:hidden;
    }

    a{color:inherit;text-decoration:none;transition:var(--pp-transition)}
    a:hover{color:var(--pp-primary)}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(108,60,255,.18);color:var(--pp-primary-dark)}
    .container{max-width:var(--pp-container)}
    .section-pad{padding:86px 0}
    .section-pad-sm{padding:64px 0}
    .section-head{margin-bottom:34px}
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      color:var(--pp-primary-dark);
      background:rgba(108,60,255,.09);
      font-size:14px;
      font-weight:800;
      margin-bottom:14px;
    }
    .section-title{
      font-size:clamp(28px,4vw,44px);
      line-height:1.18;
      letter-spacing:-.03em;
      margin:0 0 14px;
      font-weight:900;
    }
    .section-desc{
      color:var(--pp-muted);
      font-size:17px;
      max-width:760px;
      margin:0;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      background:rgba(255,255,255,.88);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(23,32,51,.08);
      box-shadow:0 10px 30px rgba(30,36,70,.05);
    }
    .nav-wrap{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:18px;
      justify-content:space-between;
    }
    .brand,.footer-brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      flex:0 0 auto;
    }
    .brand-mark{
      width:46px;
      height:46px;
      border-radius:16px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      color:#fff;
      font-weight:950;
      letter-spacing:-.04em;
      background:
        linear-gradient(135deg,var(--pp-primary),#8a5cff 48%,var(--pp-secondary));
      box-shadow:0 14px 35px rgba(108,60,255,.28);
      position:relative;
      overflow:hidden;
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      width:38px;
      height:38px;
      border-radius:50%;
      background:rgba(255,255,255,.18);
      right:-18px;
      top:-12px;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-name{font-weight:950;font-size:19px;letter-spacing:-.02em;color:var(--pp-text)}
    .brand-sub{font-size:12px;color:var(--pp-muted);margin-top:3px}
    .chip-nav{
      flex:1 1 auto;
      display:flex;
      justify-content:center;
      min-width:0;
    }
    .chip-scroll{
      display:flex;
      gap:8px;
      align-items:center;
      padding:7px;
      background:rgba(108,60,255,.06);
      border:1px solid rgba(108,60,255,.1);
      border-radius:999px;
      overflow-x:auto;
      scrollbar-width:none;
      max-width:100%;
    }
    .chip-scroll::-webkit-scrollbar{display:none}
    .nav-chip{
      display:inline-flex;
      align-items:center;
      gap:7px;
      white-space:nowrap;
      padding:10px 15px;
      border-radius:999px;
      font-weight:800;
      font-size:14px;
      color:#424a5f;
    }
    .nav-chip:hover{
      color:var(--pp-primary-dark);
      background:#fff;
      box-shadow:0 10px 25px rgba(42,35,98,.08);
      transform:translateY(-1px);
    }
    .nav-chip.active{
      color:#fff;
      background:linear-gradient(135deg,var(--pp-primary),var(--pp-primary-dark));
      box-shadow:0 12px 30px rgba(108,60,255,.27);
    }
    .header-action{
      display:flex;
      align-items:center;
      gap:10px;
      flex:0 0 auto;
    }
    .mini-search{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-width:190px;
      padding:11px 14px;
      border:1px solid var(--pp-line);
      background:#fff;
      color:var(--pp-muted);
      border-radius:999px;
      font-size:13px;
      box-shadow:0 10px 25px rgba(30,36,70,.04);
    }
    .btn-pp,.btn-ghost,.btn-darkline{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border:0;
      border-radius:999px;
      padding:12px 18px;
      font-weight:900;
      font-size:14px;
      line-height:1;
      cursor:pointer;
      transition:var(--pp-transition);
      text-decoration:none;
    }
    .btn-pp{
      color:#fff;
      background:linear-gradient(135deg,var(--pp-primary),var(--pp-primary-dark));
      box-shadow:0 16px 38px rgba(108,60,255,.26);
    }
    .btn-pp:hover{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 22px 50px rgba(108,60,255,.34);
    }
    .btn-ghost{
      color:var(--pp-primary-dark);
      background:#fff;
      border:1px solid rgba(108,60,255,.16);
      box-shadow:0 12px 28px rgba(42,35,98,.08);
    }
    .btn-ghost:hover{
      color:#fff;
      background:var(--pp-primary);
      border-color:var(--pp-primary);
      transform:translateY(-2px);
    }
    .btn-darkline{
      color:#fff;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.18);
    }
    .btn-darkline:hover{
      color:#111827;
      background:#fff;
      transform:translateY(-2px);
    }
    .btn-pp:focus-visible,.btn-ghost:focus-visible,.btn-darkline:focus-visible,.nav-chip:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
      outline:3px solid rgba(0,212,255,.38);
      outline-offset:3px;
    }

    .hero-device{
      position:relative;
      padding:88px 0 64px;
      overflow:hidden;
    }
    .hero-device:before{
      content:"";
      position:absolute;
      inset:32px 5% auto auto;
      width:420px;
      height:420px;
      border-radius:999px;
      background:radial-gradient(circle,rgba(0,212,255,.2),transparent 65%);
      filter:blur(8px);
      pointer-events:none;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.02fr .98fr;
      gap:34px;
      align-items:center;
      position:relative;
      z-index:1;
    }
    .eyebrow-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:20px;
    }
    .badge-pp{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:8px 12px;
      border-radius:999px;
      font-size:13px;
      font-weight:900;
      color:var(--pp-primary-dark);
      background:#fff;
      border:1px solid rgba(108,60,255,.12);
      box-shadow:0 10px 25px rgba(42,35,98,.07);
    }
    .badge-pp.alt{
      color:#076d82;
      background:rgba(0,212,255,.11);
      border-color:rgba(0,212,255,.2);
      box-shadow:none;
    }
    .hero-title{
      font-size:clamp(38px,6vw,68px);
      line-height:1.04;
      letter-spacing:-.055em;
      margin:0 0 20px;
      font-weight:950;
    }
    .hero-title span{
      color:transparent;
      background:linear-gradient(135deg,var(--pp-primary),#2fc9ff);
      -webkit-background-clip:text;
      background-clip:text;
    }
    .hero-lead{
      font-size:18px;
      color:#4a5368;
      max-width:650px;
      margin:0 0 26px;
    }
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px}
    .quick-metrics{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      max-width:650px;
    }
    .metric-card{
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.82);
      border:1px solid rgba(23,32,51,.08);
      box-shadow:0 14px 36px rgba(42,35,98,.08);
    }
    .metric-card strong{
      display:block;
      font-size:24px;
      letter-spacing:-.03em;
      color:var(--pp-primary-dark);
      line-height:1.1;
    }
    .metric-card span{
      display:block;
      margin-top:6px;
      color:var(--pp-muted);
      font-size:13px;
    }
    .device-panel{
      position:relative;
      padding:22px;
      border-radius:34px;
      background:linear-gradient(180deg,rgba(255,255,255,.86),rgba(255,255,255,.68));
      border:1px solid rgba(255,255,255,.72);
      box-shadow:var(--pp-shadow);
    }
    .screen-card{
      border-radius:28px;
      overflow:hidden;
      background:#111827;
      color:#fff;
      min-height:430px;
      position:relative;
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);
    }
    .screen-top{
      display:flex;
      justify-content:space-between;
      align-items:center;
      padding:18px 20px;
      border-bottom:1px solid rgba(255,255,255,.1);
    }
    .dots{display:flex;gap:7px}
    .dots i{
      width:10px;height:10px;border-radius:50%;
      background:var(--pp-danger);
      display:block;
    }
    .dots i:nth-child(2){background:var(--pp-accent)}
    .dots i:nth-child(3){background:var(--pp-secondary)}
    .screen-status{
      font-size:12px;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(0,212,255,.12);
      color:#baf5ff;
    }
    .screen-body{padding:22px}
    .rack-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
      margin-bottom:16px;
    }
    .rack-item{
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.1);
    }
    .rack-item .icon{
      width:38px;height:38px;border-radius:13px;
      display:flex;align-items:center;justify-content:center;
      background:linear-gradient(135deg,var(--pp-primary),var(--pp-secondary));
      margin-bottom:12px;
    }
    .rack-item b{display:block;font-size:16px;margin-bottom:4px}
    .rack-item small{color:rgba(255,255,255,.62)}
    .live-line{
      display:flex;
      align-items:center;
      gap:12px;
      padding:14px;
      border-radius:18px;
      background:linear-gradient(135deg,rgba(108,60,255,.22),rgba(0,212,255,.14));
      border:1px solid rgba(255,255,255,.12);
    }
    .pulse{
      width:12px;height:12px;border-radius:50%;
      background:#32ffad;
      box-shadow:0 0 0 8px rgba(50,255,173,.12);
      flex:0 0 auto;
    }
    .float-tag{
      position:absolute;
      right:-10px;
      bottom:28px;
      display:flex;
      align-items:center;
      gap:10px;
      padding:14px 16px;
      border-radius:20px;
      background:#fff;
      box-shadow:0 20px 50px rgba(42,35,98,.18);
      border:1px solid rgba(23,32,51,.08);
      color:var(--pp-text);
      font-weight:900;
    }
    .float-tag i{color:var(--pp-primary)}

    .entry-strip{
      padding:18px;
      border-radius:26px;
      background:#fff;
      box-shadow:var(--pp-shadow);
      border:1px solid rgba(23,32,51,.08);
    }
    .entry-card{
      height:100%;
      padding:22px;
      border-radius:22px;
      border:1px solid rgba(23,32,51,.08);
      background:linear-gradient(180deg,#fff,#fafbff);
      transition:var(--pp-transition);
      position:relative;
      overflow:hidden;
    }
    .entry-card:after{
      content:"";
      position:absolute;
      width:90px;height:90px;border-radius:50%;
      right:-34px;top:-34px;
      background:rgba(108,60,255,.08);
    }
    .entry-card:hover{
      transform:translateY(-5px);
      box-shadow:var(--pp-shadow-hover);
      border-color:rgba(108,60,255,.18);
    }
    .entry-icon{
      width:48px;height:48px;border-radius:17px;
      display:flex;align-items:center;justify-content:center;
      color:#fff;
      background:linear-gradient(135deg,var(--pp-primary),var(--pp-secondary));
      margin-bottom:16px;
      box-shadow:0 14px 30px rgba(108,60,255,.22);
    }
    .entry-card h3{
      font-size:20px;
      margin:0 0 10px;
      font-weight:900;
      letter-spacing:-.02em;
    }
    .entry-card p{margin:0;color:var(--pp-muted);font-size:15px}

    .dark-section{
      background:
        radial-gradient(circle at 18% 10%,rgba(108,60,255,.32),transparent 30%),
        radial-gradient(circle at 80% 24%,rgba(0,212,255,.22),transparent 28%),
        #101523;
      color:#fff;
      border-radius:38px;
      margin:20px auto;
      max-width:calc(var(--pp-container) + 56px);
      overflow:hidden;
      position:relative;
    }
    .dark-section .section-desc{color:rgba(255,255,255,.68)}
    .dark-section .section-kicker{
      color:#dfe8ff;
      background:rgba(255,255,255,.11);
      border:1px solid rgba(255,255,255,.1);
    }
    .solution-card{
      padding:24px;
      height:100%;
      border-radius:26px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.11);
      backdrop-filter:blur(12px);
      transition:var(--pp-transition);
    }
    .solution-card:hover{
      background:rgba(255,255,255,.12);
      transform:translateY(-5px);
    }
    .solution-card .num{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:38px;height:38px;
      border-radius:14px;
      color:#101523;
      background:#fff;
      font-weight:950;
      margin-bottom:16px;
    }
    .solution-card h3{font-size:21px;margin:0 0 10px;font-weight:900}
    .solution-card p{color:rgba(255,255,255,.68);margin:0 0 16px}
    .chip-list{display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0;list-style:none}
    .chip-list li{
      padding:7px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.1);
      color:rgba(255,255,255,.78);
      font-size:13px;
      border:1px solid rgba(255,255,255,.08);
    }

    .scenario-board{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:20px;
    }
    .scenario-card{
      padding:26px;
      border-radius:28px;
      background:#fff;
      border:1px solid rgba(23,32,51,.08);
      box-shadow:0 14px 40px rgba(42,35,98,.08);
      min-height:260px;
      transition:var(--pp-transition);
    }
    .scenario-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--pp-shadow-hover);
    }
    .scenario-card.featured{
      background:linear-gradient(135deg,#ffffff 0%,#f2eeff 100%);
      border-color:rgba(108,60,255,.2);
    }
    .scenario-head{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:16px;
      margin-bottom:16px;
    }
    .scenario-head h3{
      margin:0;
      font-size:22px;
      font-weight:950;
      letter-spacing:-.02em;
    }
    .scenario-badge{
      flex:0 0 auto;
      padding:7px 10px;
      border-radius:999px;
      color:var(--pp-primary-dark);
      background:rgba(108,60,255,.09);
      font-weight:900;
      font-size:12px;
    }
    .scenario-card p{color:var(--pp-muted);margin:0 0 18px}
    .check-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .check-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:#384154;
      font-size:15px;
    }
    .check-list i{
      color:#19b77a;
      margin-top:5px;
      flex:0 0 auto;
    }

    .process-wrap{
      position:relative;
    }
    .process-wrap:before{
      content:"";
      position:absolute;
      left:28px;
      top:20px;
      bottom:20px;
      width:2px;
      background:linear-gradient(180deg,var(--pp-primary),rgba(108,60,255,0));
    }
    .process-item{
      position:relative;
      display:grid;
      grid-template-columns:64px 1fr;
      gap:18px;
      margin-bottom:18px;
    }
    .process-dot{
      width:58px;height:58px;border-radius:20px;
      display:flex;align-items:center;justify-content:center;
      color:#fff;
      background:linear-gradient(135deg,var(--pp-primary),var(--pp-secondary));
      box-shadow:0 14px 35px rgba(108,60,255,.24);
      z-index:1;
      font-weight:950;
    }
    .process-content{
      padding:22px 24px;
      border-radius:24px;
      background:#fff;
      border:1px solid rgba(23,32,51,.08);
      box-shadow:0 12px 34px rgba(42,35,98,.07);
    }
    .process-content h3{font-size:20px;margin:0 0 8px;font-weight:900}
    .process-content p{margin:0;color:var(--pp-muted)}

    .table-card{
      border-radius:28px;
      background:#fff;
      border:1px solid rgba(23,32,51,.08);
      box-shadow:var(--pp-shadow);
      overflow:hidden;
    }
    .compare-row{
      display:grid;
      grid-template-columns:1.1fr 1fr 1fr;
      border-bottom:1px solid rgba(23,32,51,.08);
    }
    .compare-row:last-child{border-bottom:0}
    .compare-cell{
      padding:20px;
      border-right:1px solid rgba(23,32,51,.08);
    }
    .compare-cell:last-child{border-right:0}
    .compare-row.head{
      color:#fff;
      background:linear-gradient(135deg,var(--pp-primary),#241656);
      font-weight:950;
    }
    .compare-row:not(.head) .compare-cell:first-child{
      font-weight:900;
      color:var(--pp-text);
      background:#fbfbff;
    }
    .compare-cell p{margin:6px 0 0;color:var(--pp-muted);font-size:14px}
    .compare-row.head .compare-cell p{color:rgba(255,255,255,.68)}

    .faq-shell{
      display:grid;
      grid-template-columns:.8fr 1.2fr;
      gap:28px;
      align-items:start;
    }
    .faq-aside{
      position:sticky;
      top:104px;
      padding:28px;
      border-radius:30px;
      color:#fff;
      background:
        radial-gradient(circle at 80% 10%,rgba(0,212,255,.25),transparent 35%),
        linear-gradient(135deg,#171d31,#2a195c);
      box-shadow:var(--pp-shadow);
    }
    .faq-aside h2{
      margin:0 0 12px;
      font-size:30px;
      font-weight:950;
      letter-spacing:-.03em;
    }
    .faq-aside p{margin:0 0 20px;color:rgba(255,255,255,.68)}
    .accordion{
      display:grid;
      gap:12px;
    }
    .accordion-item{
      border:1px solid rgba(23,32,51,.08)!important;
      border-radius:20px!important;
      overflow:hidden;
      background:#fff;
      box-shadow:0 12px 30px rgba(42,35,98,.06);
    }
    .accordion-button{
      padding:20px 22px;
      font-weight:900;
      color:var(--pp-text);
      background:#fff;
      box-shadow:none!important;
    }
    .accordion-button:not(.collapsed){
      color:var(--pp-primary-dark);
      background:rgba(108,60,255,.06);
    }
    .accordion-button:focus{
      border-color:transparent;
      box-shadow:0 0 0 3px rgba(0,212,255,.18)!important;
    }
    .accordion-body{
      color:var(--pp-muted);
      padding:0 22px 22px;
    }

    .cta-panel{
      position:relative;
      overflow:hidden;
      border-radius:36px;
      padding:38px;
      background:
        radial-gradient(circle at 18% 18%,rgba(255,255,255,.28),transparent 28%),
        linear-gradient(135deg,var(--pp-primary),#221457 62%,#072c42);
      color:#fff;
      box-shadow:0 26px 80px rgba(42,35,98,.22);
    }
    .cta-panel:after{
      content:"";
      position:absolute;
      width:260px;height:260px;border-radius:50%;
      right:-80px;bottom:-120px;
      background:rgba(0,212,255,.22);
    }
    .cta-content{position:relative;z-index:1}
    .cta-panel h2{
      font-size:clamp(28px,4vw,46px);
      line-height:1.16;
      font-weight:950;
      letter-spacing:-.04em;
      margin:0 0 14px;
    }
    .cta-panel p{color:rgba(255,255,255,.72);margin:0 0 22px;max-width:720px}
    .contact-form{
      position:relative;
      z-index:1;
      padding:22px;
      border-radius:26px;
      background:rgba(255,255,255,.11);
      border:1px solid rgba(255,255,255,.14);
      backdrop-filter:blur(16px);
    }
    .form-control,.form-select{
      min-height:48px;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.18);
      background:rgba(255,255,255,.95);
      color:var(--pp-text);
      box-shadow:none;
    }
    .form-control:focus,.form-select:focus{
      border-color:var(--pp-secondary);
      box-shadow:0 0 0 4px rgba(0,212,255,.16);
    }
    .form-label{
      color:rgba(255,255,255,.82);
      font-weight:800;
      font-size:13px;
      margin-bottom:8px;
    }
    .form-note{
      color:rgba(255,255,255,.58);
      font-size:13px;
      margin:10px 0 0;
    }

    .site-footer{
      margin-top:80px;
      padding:62px 0 26px;
      background:#0d1220;
      color:#fff;
      position:relative;
      overflow:hidden;
    }
    .site-footer:before{
      content:"";
      position:absolute;
      inset:auto auto -140px -100px;
      width:360px;height:360px;border-radius:50%;
      background:rgba(108,60,255,.2);
      filter:blur(10px);
    }
    .site-footer .container{position:relative;z-index:1}
    .footer-brand strong{
      color:#fff;
      font-size:20px;
      letter-spacing:-.02em;
    }
    .footer-desc{
      color:rgba(255,255,255,.62);
      margin:18px 0 22px;
      max-width:430px;
    }
    .footer-title{
      color:#fff;
      font-size:16px;
      margin:6px 0 16px;
      font-weight:950;
    }
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:rgba(255,255,255,.62);
      display:inline-flex;
      align-items:center;
      gap:7px;
      font-size:14px;
    }
    .footer-links a:hover{
      color:#fff;
      transform:translateX(3px);
    }
    .footer-links i{font-size:12px;color:var(--pp-secondary)}
    .footer-bottom{
      margin-top:44px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.1);
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      color:rgba(255,255,255,.5);
      font-size:13px;
    }

    @media (max-width:1024px){
      .nav-wrap{flex-wrap:wrap;padding:14px 0}
      .chip-nav{order:3;flex-basis:100%;justify-content:flex-start}
      .chip-scroll{width:100%;border-radius:22px}
      .header-action{margin-left:auto}
      .hero-grid{grid-template-columns:1fr;gap:28px}
      .hero-device{padding-top:64px}
      .faq-shell{grid-template-columns:1fr}
      .faq-aside{position:relative;top:auto}
    }
    @media (max-width:768px){
      .section-pad{padding:64px 0}
      .section-pad-sm{padding:48px 0}
      .brand-sub,.mini-search{display:none}
      .brand-mark{width:42px;height:42px;border-radius:14px}
      .header-action{gap:8px}
      .btn-pp,.btn-ghost,.btn-darkline{padding:11px 14px}
      .nav-chip{padding:9px 12px;font-size:13px}
      .quick-metrics{grid-template-columns:1fr}
      .screen-card{min-height:auto}
      .rack-grid{grid-template-columns:1fr}
      .float-tag{position:static;margin-top:14px;justify-content:center}
      .scenario-board{grid-template-columns:1fr}
      .compare-row{grid-template-columns:1fr}
      .compare-cell{border-right:0;border-bottom:1px solid rgba(23,32,51,.08)}
      .compare-cell:last-child{border-bottom:0}
      .process-wrap:before{left:23px}
      .process-item{grid-template-columns:52px 1fr;gap:12px}
      .process-dot{width:48px;height:48px;border-radius:17px}
      .cta-panel{padding:28px 20px;border-radius:28px}
      .dark-section{border-radius:28px;margin-left:12px;margin-right:12px}
      .site-footer{margin-top:58px}
    }
    @media (max-width:520px){
      .hero-title{font-size:38px}
      .hero-lead{font-size:16px}
      .hero-actions{flex-direction:column;align-items:stretch}
      .hero-actions a,.cta-panel .btn-pp,.cta-panel .btn-darkline{width:100%}
      .device-panel{padding:14px;border-radius:26px}
      .screen-top{padding:14px}
      .screen-body{padding:16px}
      .entry-strip{padding:12px;border-radius:22px}
      .scenario-card,.process-content,.table-card,.faq-aside{border-radius:22px}
      .footer-bottom{flex-direction:column}
      .brand-name{font-size:18px}
    }

/* roulang page: category3 */
:root{
      --pp-primary:#6f3cff;
      --pp-primary-dark:#4b22d9;
      --pp-secondary:#00d4ff;
      --pp-accent:#ffcc3d;
      --pp-hot:#ff4d7d;
      --pp-ink:#15142a;
      --pp-text:#34324c;
      --pp-muted:#73718a;
      --pp-soft:#f6f4ff;
      --pp-soft-2:#eefbff;
      --pp-bg:#fbfbff;
      --pp-white:#ffffff;
      --pp-border:rgba(33,30,70,.12);
      --pp-border-strong:rgba(111,60,255,.22);
      --pp-shadow:0 18px 50px rgba(36,26,94,.12);
      --pp-shadow-hover:0 24px 70px rgba(36,26,94,.18);
      --pp-radius:24px;
      --pp-radius-lg:34px;
      --pp-radius-sm:16px;
      --pp-gradient:linear-gradient(135deg,#6f3cff 0%,#00d4ff 100%);
      --pp-gradient-hot:linear-gradient(135deg,#ff4d7d 0%,#ffcc3d 100%);
      --pp-header-h:82px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--pp-text);
      line-height:1.75;
      background:
        radial-gradient(circle at top left,rgba(111,60,255,.13),transparent 34rem),
        radial-gradient(circle at 86% 12%,rgba(0,212,255,.12),transparent 30rem),
        linear-gradient(180deg,#ffffff 0%,var(--pp-bg) 42%,#ffffff 100%);
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:all .25s ease}
    a:hover{color:var(--pp-primary)}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    ::selection{background:rgba(111,60,255,.18);color:var(--pp-ink)}
    .container{max-width:1180px}
    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      padding:14px 0;
      background:rgba(255,255,255,.84);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(33,30,70,.08);
      box-shadow:0 10px 34px rgba(35,28,88,.06);
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand,.footer-brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .brand-mark{
      width:48px;
      height:48px;
      border-radius:17px;
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:900;
      letter-spacing:-.04em;
      background:var(--pp-gradient);
      box-shadow:0 14px 32px rgba(111,60,255,.28);
      position:relative;
      overflow:hidden;
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      width:30px;
      height:80px;
      background:rgba(255,255,255,.28);
      transform:rotate(28deg);
      left:-26px;
      top:-18px;
      transition:.45s ease;
    }
    .brand:hover .brand-mark:after,.footer-brand:hover .brand-mark:after{left:54px}
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-name{
      color:var(--pp-ink);
      font-weight:900;
      font-size:1.1rem;
      letter-spacing:-.02em;
    }
    .brand-sub{
      color:var(--pp-muted);
      font-size:.78rem;
      margin-top:4px;
    }
    .chip-nav{
      flex:1;
      min-width:0;
      display:flex;
      justify-content:center;
    }
    .chip-scroll{
      display:flex;
      align-items:center;
      gap:8px;
      padding:7px;
      border:1px solid rgba(111,60,255,.12);
      border-radius:999px;
      background:rgba(246,244,255,.82);
      max-width:100%;
      overflow-x:auto;
      scrollbar-width:none;
    }
    .chip-scroll::-webkit-scrollbar{display:none}
    .nav-chip{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:7px;
      padding:10px 15px;
      border-radius:999px;
      color:var(--pp-text);
      font-weight:800;
      font-size:.93rem;
      white-space:nowrap;
      border:1px solid transparent;
    }
    .nav-chip:hover{
      background:#fff;
      border-color:rgba(111,60,255,.18);
      color:var(--pp-primary);
      box-shadow:0 8px 18px rgba(49,35,105,.08);
      transform:translateY(-1px);
    }
    .nav-chip.active{
      color:#fff;
      background:var(--pp-gradient);
      box-shadow:0 12px 28px rgba(111,60,255,.25);
    }
    .header-action{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:max-content;
    }
    .mini-search{
      display:flex;
      align-items:center;
      gap:8px;
      color:var(--pp-muted);
      background:#fff;
      border:1px solid var(--pp-border);
      border-radius:999px;
      padding:10px 13px;
      font-size:.86rem;
      box-shadow:0 8px 20px rgba(35,28,88,.06);
    }
    .mini-search i{color:var(--pp-primary)}
    .btn-pp{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border:0;
      border-radius:999px;
      padding:12px 18px;
      color:#fff!important;
      font-weight:900;
      background:var(--pp-gradient);
      box-shadow:0 14px 32px rgba(111,60,255,.24);
      transition:all .25s ease;
      white-space:nowrap;
    }
    .btn-pp:hover{
      transform:translateY(-2px);
      box-shadow:0 18px 42px rgba(111,60,255,.32);
      filter:saturate(1.06);
    }
    .btn-pp:focus-visible,.btn-outline-pp:focus-visible,.nav-chip:focus-visible,.faq-button:focus-visible{
      outline:4px solid rgba(0,212,255,.24);
      outline-offset:3px;
    }
    .btn-outline-pp{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border-radius:999px;
      padding:11px 17px;
      border:1px solid rgba(111,60,255,.25);
      background:#fff;
      color:var(--pp-primary);
      font-weight:900;
      box-shadow:0 10px 24px rgba(35,28,88,.06);
    }
    .btn-outline-pp:hover{
      background:var(--pp-soft);
      border-color:rgba(111,60,255,.42);
      transform:translateY(-2px);
    }
    main{position:relative}
    .section{padding:88px 0}
    .section-tight{padding:64px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      color:var(--pp-primary);
      background:rgba(111,60,255,.09);
      border:1px solid rgba(111,60,255,.13);
      font-size:.86rem;
      font-weight:900;
    }
    .hero{
      padding:78px 0 56px;
      position:relative;
      overflow:hidden;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:34px auto auto 50%;
      width:620px;
      height:620px;
      transform:translateX(-3%);
      background:radial-gradient(circle,rgba(0,212,255,.18),transparent 60%);
      pointer-events:none;
    }
    .hero-title{
      margin:18px 0 18px;
      font-size:clamp(2.15rem,4.7vw,4.75rem);
      line-height:1.06;
      letter-spacing:-.06em;
      color:var(--pp-ink);
      font-weight:950;
    }
    .hero-title .text-gradient{
      background:var(--pp-gradient);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero-lead{
      font-size:1.12rem;
      color:var(--pp-muted);
      max-width:720px;
      margin:0 0 26px;
    }
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0}
    .hero-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:8px 12px;
      border-radius:999px;
      background:#fff;
      border:1px solid var(--pp-border);
      color:var(--pp-text);
      font-weight:800;
      font-size:.9rem;
      box-shadow:0 8px 20px rgba(35,28,88,.05);
    }
    .tag i{color:var(--pp-secondary)}
    .hero-panel{
      border-radius:var(--pp-radius-lg);
      background:linear-gradient(180deg,rgba(255,255,255,.94),rgba(255,255,255,.78));
      border:1px solid rgba(111,60,255,.14);
      box-shadow:var(--pp-shadow);
      padding:22px;
      position:relative;
      overflow:hidden;
    }
    .hero-panel:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(135deg,rgba(111,60,255,.12),transparent 40%),
        radial-gradient(circle at 90% 10%,rgba(255,204,61,.22),transparent 30%);
      pointer-events:none;
    }
    .hero-panel > *{position:relative}
    .cover-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:14px;
    }
    .cover-card{
      min-height:174px;
      border-radius:24px;
      padding:20px;
      color:#fff;
      overflow:hidden;
      position:relative;
      background:var(--pp-gradient);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .cover-card.small{
      min-height:130px;
      background:linear-gradient(135deg,#15142a,#4b22d9);
    }
    .cover-card.hot{background:var(--pp-gradient-hot)}
    .cover-card:after{
      content:"";
      position:absolute;
      right:-36px;
      bottom:-48px;
      width:150px;
      height:150px;
      border-radius:50%;
      border:28px solid rgba(255,255,255,.16);
    }
    .cover-kicker{font-size:.82rem;font-weight:900;opacity:.86}
    .cover-title{font-size:1.35rem;font-weight:950;line-height:1.2;margin:10px 0}
    .cover-meta{font-size:.9rem;opacity:.86}
    .live-bar{
      margin-top:14px;
      display:flex;
      gap:10px;
      align-items:center;
      padding:13px 15px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--pp-border);
      box-shadow:0 10px 24px rgba(35,28,88,.06);
    }
    .pulse{
      width:10px;height:10px;border-radius:50%;
      background:#2bd980;
      box-shadow:0 0 0 8px rgba(43,217,128,.12);
      flex:none;
    }
    .live-bar strong{color:var(--pp-ink)}
    .live-bar span{color:var(--pp-muted);font-size:.92rem}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:30px;
    }
    .section-title{
      color:var(--pp-ink);
      font-weight:950;
      letter-spacing:-.04em;
      line-height:1.15;
      font-size:clamp(1.8rem,3.3vw,3rem);
      margin:12px 0 0;
    }
    .section-desc{
      color:var(--pp-muted);
      max-width:600px;
      margin:0;
    }
    .info-card{
      height:100%;
      background:#fff;
      border:1px solid var(--pp-border);
      border-radius:var(--pp-radius);
      padding:26px;
      box-shadow:0 14px 34px rgba(35,28,88,.07);
      transition:all .25s ease;
      position:relative;
      overflow:hidden;
    }
    .info-card:hover{
      transform:translateY(-5px);
      box-shadow:var(--pp-shadow-hover);
      border-color:var(--pp-border-strong);
    }
    .info-card:before{
      content:"";
      position:absolute;
      left:0;top:0;
      width:100%;
      height:4px;
      background:var(--pp-gradient);
      opacity:.9;
    }
    .icon-badge{
      width:52px;
      height:52px;
      border-radius:18px;
      display:grid;
      place-items:center;
      color:#fff;
      background:var(--pp-gradient);
      box-shadow:0 14px 28px rgba(111,60,255,.24);
      margin-bottom:18px;
      font-size:1.2rem;
    }
    .info-card h3{
      color:var(--pp-ink);
      font-weight:950;
      font-size:1.22rem;
      margin:0 0 10px;
    }
    .info-card p{color:var(--pp-muted);margin:0}
    .rank-board{
      border-radius:var(--pp-radius-lg);
      padding:24px;
      background:#15142a;
      color:#fff;
      box-shadow:var(--pp-shadow);
      overflow:hidden;
      position:relative;
    }
    .rank-board:before{
      content:"";
      position:absolute;
      inset:-180px -120px auto auto;
      width:360px;height:360px;
      border-radius:50%;
      background:rgba(0,212,255,.22);
      filter:blur(6px);
    }
    .rank-item{
      position:relative;
      display:grid;
      grid-template-columns:46px 1fr auto;
      gap:14px;
      align-items:center;
      padding:16px 0;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .rank-item:last-child{border-bottom:0}
    .rank-num{
      width:38px;height:38px;border-radius:14px;
      display:grid;place-items:center;
      background:rgba(255,255,255,.1);
      color:var(--pp-accent);
      font-weight:950;
    }
    .rank-item h3{font-size:1rem;font-weight:900;margin:0 0 3px}
    .rank-item p{margin:0;color:rgba(255,255,255,.64);font-size:.9rem}
    .rank-score{
      padding:7px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.12);
      color:#fff;
      font-weight:900;
      white-space:nowrap;
    }
    .feature-strip{
      border-radius:var(--pp-radius-lg);
      padding:28px;
      background:linear-gradient(135deg,rgba(111,60,255,.09),rgba(0,212,255,.08));
      border:1px solid rgba(111,60,255,.13);
    }
    .strip-item{
      display:flex;
      gap:14px;
      padding:18px;
      background:rgba(255,255,255,.75);
      border:1px solid rgba(255,255,255,.7);
      border-radius:22px;
      height:100%;
    }
    .strip-item i{
      color:var(--pp-primary);
      font-size:1.25rem;
      margin-top:5px;
    }
    .strip-item strong{display:block;color:var(--pp-ink);font-weight:950;margin-bottom:4px}
    .strip-item span{display:block;color:var(--pp-muted);font-size:.94rem}
    .process{
      counter-reset:step;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
    }
    .step-card{
      counter-increment:step;
      padding:24px;
      background:#fff;
      border-radius:var(--pp-radius);
      border:1px solid var(--pp-border);
      box-shadow:0 14px 32px rgba(35,28,88,.06);
      position:relative;
      min-height:230px;
    }
    .step-card:before{
      content:"0" counter(step);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:48px;height:48px;
      border-radius:17px;
      color:#fff;
      font-weight:950;
      background:var(--pp-gradient);
      margin-bottom:18px;
    }
    .step-card h3{color:var(--pp-ink);font-size:1.12rem;font-weight:950;margin:0 0 10px}
    .step-card p{color:var(--pp-muted);margin:0}
    .scene-card{
      height:100%;
      border-radius:var(--pp-radius);
      overflow:hidden;
      background:#fff;
      border:1px solid var(--pp-border);
      box-shadow:0 14px 32px rgba(35,28,88,.07);
      transition:.25s ease;
    }
    .scene-card:hover{transform:translateY(-4px);box-shadow:var(--pp-shadow-hover)}
    .scene-visual{
      min-height:150px;
      padding:18px;
      color:#fff;
      background:var(--pp-gradient);
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      position:relative;
      overflow:hidden;
    }
    .scene-visual:after{
      content:"";
      width:128px;height:128px;border-radius:38px;
      background:rgba(255,255,255,.16);
      transform:rotate(18deg);
      position:absolute;
      right:-30px;top:-24px;
    }
    .scene-visual strong{
      position:relative;
      z-index:1;
      font-size:1.34rem;
      font-weight:950;
    }
    .scene-visual i{position:relative;z-index:1;font-size:2rem;opacity:.82}
    .scene-body{padding:22px}
    .scene-body p{color:var(--pp-muted);margin:0 0 16px}
    .check-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .check-list li{
      display:flex;
      align-items:flex-start;
      gap:9px;
      color:var(--pp-text);
      font-weight:700;
      font-size:.94rem;
    }
    .check-list i{
      color:#22c55e;
      margin-top:5px;
      flex:none;
    }
    .metrics{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .metric-card{
      padding:24px;
      background:#fff;
      border-radius:var(--pp-radius);
      border:1px solid var(--pp-border);
      box-shadow:0 12px 30px rgba(35,28,88,.06);
      text-align:center;
    }
    .metric-card strong{
      display:block;
      color:var(--pp-ink);
      font-size:2rem;
      line-height:1;
      font-weight:950;
      letter-spacing:-.04em;
    }
    .metric-card span{
      display:block;
      margin-top:10px;
      color:var(--pp-muted);
      font-weight:800;
    }
    .faq-wrap{
      display:grid;
      gap:14px;
    }
    .faq-item{
      border:1px solid var(--pp-border);
      border-radius:22px;
      background:#fff;
      overflow:hidden;
      box-shadow:0 12px 28px rgba(35,28,88,.05);
    }
    .faq-button{
      width:100%;
      border:0;
      background:#fff;
      text-align:left;
      padding:20px 22px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      color:var(--pp-ink);
      font-weight:950;
    }
    .faq-button i{color:var(--pp-primary);transition:.25s ease}
    .faq-button[aria-expanded="true"] i{transform:rotate(180deg)}
    .faq-body{
      padding:0 22px 22px;
      color:var(--pp-muted);
    }
    .cta-box{
      border-radius:var(--pp-radius-lg);
      padding:42px;
      background:
        radial-gradient(circle at 12% 20%,rgba(255,204,61,.28),transparent 28%),
        radial-gradient(circle at 88% 18%,rgba(0,212,255,.24),transparent 28%),
        linear-gradient(135deg,#211452,#6f3cff);
      color:#fff;
      box-shadow:0 24px 70px rgba(75,34,217,.25);
      overflow:hidden;
      position:relative;
    }
    .cta-box:after{
      content:"";
      position:absolute;
      right:-70px;
      bottom:-100px;
      width:300px;height:300px;
      border-radius:80px;
      border:36px solid rgba(255,255,255,.12);
      transform:rotate(25deg);
    }
    .cta-box > *{position:relative;z-index:1}
    .cta-box h2{
      font-size:clamp(1.8rem,3.2vw,3rem);
      line-height:1.12;
      font-weight:950;
      letter-spacing:-.04em;
      margin:0 0 14px;
    }
    .cta-box p{max-width:720px;color:rgba(255,255,255,.78);margin:0 0 24px}
    .contact-form{
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.18);
      border-radius:24px;
      padding:18px;
      backdrop-filter:blur(14px);
    }
    .form-control,.form-select{
      border-radius:16px;
      border:1px solid rgba(255,255,255,.18);
      padding:13px 14px;
      background:rgba(255,255,255,.92);
      color:var(--pp-ink);
      box-shadow:none!important;
    }
    .form-control:focus,.form-select:focus{
      border-color:var(--pp-secondary);
      outline:0;
    }
    .site-footer{
      padding:66px 0 26px;
      background:#111025;
      color:#fff;
      position:relative;
      overflow:hidden;
    }
    .site-footer:before{
      content:"";
      position:absolute;
      width:420px;height:420px;border-radius:50%;
      background:rgba(111,60,255,.22);
      filter:blur(20px);
      right:-200px;top:-180px;
    }
    .site-footer .container{position:relative}
    .footer-brand strong{font-size:1.15rem;color:#fff}
    .footer-desc{
      color:rgba(255,255,255,.62);
      max-width:470px;
      margin:18px 0 22px;
    }
    .footer-title{
      color:#fff;
      font-size:1rem;
      font-weight:950;
      margin:0 0 16px;
    }
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:rgba(255,255,255,.62);
      font-weight:700;
    }
    .footer-links a:hover{color:#fff;transform:translateX(3px)}
    .footer-links i{color:var(--pp-secondary);font-size:.78rem}
    .footer-bottom{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding-top:24px;
      margin-top:42px;
      border-top:1px solid rgba(255,255,255,.1);
      color:rgba(255,255,255,.5);
      font-size:.9rem;
    }
    @media (max-width: 1024px){
      .nav-wrap{flex-wrap:wrap}
      .chip-nav{order:3;width:100%;justify-content:flex-start}
      .header-action{margin-left:auto}
      .process,.metrics{grid-template-columns:repeat(2,1fr)}
      .section{padding:72px 0}
    }
    @media (max-width: 768px){
      .site-header{padding:10px 0}
      .brand-mark{width:44px;height:44px;border-radius:15px}
      .brand-sub{display:none}
      .mini-search{display:none}
      .header-action .btn-pp{padding:10px 13px}
      .header-action .btn-pp span{display:none}
      .hero{padding:52px 0 40px}
      .hero-panel{margin-top:18px}
      .cover-grid{grid-template-columns:1fr}
      .section-head{display:block}
      .section-desc{margin-top:12px}
      .rank-item{grid-template-columns:40px 1fr}
      .rank-score{grid-column:2;justify-self:flex-start}
      .process,.metrics{grid-template-columns:1fr}
      .cta-box{padding:30px 22px}
      .footer-bottom{flex-direction:column;align-items:flex-start}
    }
    @media (max-width: 520px){
      body{line-height:1.68}
      .container{padding-left:18px;padding-right:18px}
      .nav-chip{padding:9px 12px;font-size:.86rem}
      .btn-pp,.btn-outline-pp{width:100%;padding:12px 16px}
      .hero-actions{flex-direction:column}
      .hero-tags .tag{width:100%;justify-content:center}
      .info-card,.step-card,.feature-strip{padding:20px}
      .strip-item{padding:16px}
      .cover-card{min-height:150px}
      .metric-card strong{font-size:1.7rem}
      .contact-form{padding:14px}
    }