/* roulang page: index */
:root{
      --color-primary:#1f6feb;
      --color-primary-dark:#164ea8;
      --color-primary-soft:#eaf2ff;
      --color-accent:#f5b642;
      --color-accent-dark:#d89517;
      --color-success:#19a974;
      --color-warning:#f59e0b;
      --color-danger:#e5484d;
      --color-ink:#102033;
      --color-text:#26384d;
      --color-muted:#6c7a8c;
      --color-faint:#8b98a8;
      --color-border:#dbe5f1;
      --color-bg:#f6f9fd;
      --color-white:#ffffff;
      --color-navy:#0b1830;
      --color-navy-2:#101f3f;
      --shadow-sm:0 8px 24px rgba(16,32,51,.08);
      --shadow-md:0 16px 42px rgba(16,32,51,.12);
      --shadow-lg:0 24px 70px rgba(16,32,51,.16);
      --radius-sm:10px;
      --radius-md:18px;
      --radius-lg:28px;
      --radius-xl:36px;
      --container:1180px;
      --transition:all .22s 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(--color-text);
      background:linear-gradient(180deg,#f9fbff 0%,#f4f8fd 46%,#ffffff 100%);
      line-height:1.72;
      font-size:16px;
      overflow-x:hidden;
    }
    body.nav-open{overflow:hidden}
    a{color:inherit;text-decoration:none;transition:var(--transition)}
    a:hover,a:focus{color:var(--color-primary)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(31,111,235,.18);color:var(--color-ink)}

    .site-container{
      width:min(var(--container),calc(100% - 40px));
      margin:0 auto;
    }

    .skip-link{
      position:absolute;
      left:-999px;
      top:12px;
      z-index:9999;
      padding:10px 14px;
      border-radius:10px;
      background:var(--color-primary);
      color:#fff;
    }
    .skip-link:focus{left:12px;color:#fff}

    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      background:rgba(11,24,48,.96);
      backdrop-filter:blur(16px);
      border-bottom:1px solid rgba(255,255,255,.09);
      box-shadow:0 10px 30px rgba(8,16,34,.18);
    }
    .nav-wrap{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-weight:850;
      letter-spacing:.2px;
      min-width:0;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#07142b;
      background:linear-gradient(135deg,#ffd166 0%,#f5b642 46%,#7cc7ff 100%);
      box-shadow:0 10px 26px rgba(245,182,66,.25);
      flex:0 0 auto;
    }
    .brand-text{
      font-size:19px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      max-width:260px;
    }

    .main-nav{
      display:flex;
      align-items:center;
      gap:10px;
      margin-left:auto;
    }
    .nav-link{
      color:rgba(255,255,255,.82);
      padding:10px 14px;
      border-radius:999px;
      font-weight:650;
      font-size:15px;
    }
    .nav-link:hover,.nav-link:focus{
      color:#fff;
      background:rgba(255,255,255,.1);
    }
    .nav-link.active{
      color:#07142b;
      background:#fff;
      box-shadow:0 8px 20px rgba(255,255,255,.12);
    }
    .nav-search{
      width:230px;
      height:42px;
      border-radius:999px;
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.14);
      display:flex;
      align-items:center;
      gap:8px;
      padding:0 12px;
      color:rgba(255,255,255,.7);
    }
    .nav-search input{
      border:0;
      box-shadow:none;
      margin:0;
      height:38px;
      padding:0;
      background:transparent;
      color:#fff;
      font-size:14px;
    }
    .nav-search input::placeholder{color:rgba(255,255,255,.56)}
    .nav-search input:focus{background:transparent;box-shadow:none}
    .nav-cta{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:11px 16px;
      border-radius:999px;
      color:#07142b;
      background:linear-gradient(135deg,#ffd166,#f5b642);
      font-weight:800;
      box-shadow:0 12px 28px rgba(245,182,66,.28);
      white-space:nowrap;
    }
    .nav-cta:hover,.nav-cta:focus{
      color:#07142b;
      transform:translateY(-1px);
      box-shadow:0 18px 34px rgba(245,182,66,.34);
    }
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border:1px solid rgba(255,255,255,.14);
      border-radius:14px;
      background:rgba(255,255,255,.08);
      color:#fff;
      align-items:center;
      justify-content:center;
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:13px 20px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:800;
      line-height:1;
      transition:var(--transition);
      box-shadow:none;
      user-select:none;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--color-primary),#48a3ff);
      color:#fff;
      box-shadow:0 14px 32px rgba(31,111,235,.25);
    }
    .btn-primary:hover,.btn-primary:focus{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 20px 46px rgba(31,111,235,.33);
    }
    .btn-ghost{
      color:var(--color-primary-dark);
      background:#fff;
      border-color:var(--color-border);
    }
    .btn-ghost:hover,.btn-ghost:focus{
      color:var(--color-primary-dark);
      border-color:#b6cae4;
      transform:translateY(-2px);
      box-shadow:var(--shadow-sm);
    }
    .btn-soft{
      color:var(--color-primary-dark);
      background:var(--color-primary-soft);
      border-color:#d5e5ff;
    }
    .btn-soft:hover,.btn-soft:focus{
      color:#fff;
      background:var(--color-primary);
      border-color:var(--color-primary);
    }
    .btn:focus-visible,
    .nav-link:focus-visible,
    .nav-cta:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    select:focus-visible,
    button:focus-visible{
      outline:3px solid rgba(31,111,235,.25);
      outline-offset:3px;
    }

    .badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      font-size:13px;
      font-weight:800;
      color:var(--color-primary-dark);
      background:var(--color-primary-soft);
      border:1px solid #d9e8ff;
    }
    .badge.dark{
      color:#fff;
      background:rgba(255,255,255,.12);
      border-color:rgba(255,255,255,.16);
    }
    .badge.warning{
      color:#7a4a00;
      background:#fff3d7;
      border-color:#ffe2a1;
    }
    .badge.success{
      color:#12684b;
      background:#e7f8f1;
      border-color:#c9efe1;
    }

    main{position:relative}
    .section{
      padding:88px 0;
      position:relative;
    }
    .section.compact{padding:64px 0}
    .section-header{
      max-width:760px;
      margin-bottom:34px;
    }
    .section-eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--color-primary-dark);
      font-weight:850;
      font-size:14px;
      margin-bottom:12px;
    }
    .section-title{
      color:var(--color-ink);
      font-size:clamp(28px,3.2vw,44px);
      line-height:1.16;
      margin:0 0 14px;
      font-weight:900;
      letter-spacing:-.8px;
    }
    .section-lead{
      color:var(--color-muted);
      font-size:17px;
      max-width:820px;
      margin:0;
    }

    .hero{
      padding:74px 0 70px;
      background:
        radial-gradient(circle at 12% 10%,rgba(31,111,235,.16),transparent 34%),
        radial-gradient(circle at 85% 6%,rgba(245,182,66,.2),transparent 30%),
        linear-gradient(180deg,#ffffff 0%,#f3f8ff 100%);
      overflow:hidden;
    }
    .hero-board{
      border:1px solid rgba(219,229,241,.9);
      border-radius:var(--radius-xl);
      background:rgba(255,255,255,.86);
      box-shadow:var(--shadow-lg);
      padding:22px;
      position:relative;
    }
    .hero-board:before{
      content:"";
      position:absolute;
      inset:12px;
      border-radius:28px;
      border:1px solid rgba(31,111,235,.08);
      pointer-events:none;
    }
    .hero-topline{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:12px 14px;
      border-radius:20px;
      background:var(--color-navy);
      color:#fff;
      margin-bottom:18px;
      position:relative;
      z-index:1;
    }
    .live-dot{
      width:9px;
      height:9px;
      border-radius:50%;
      background:#43d17a;
      box-shadow:0 0 0 6px rgba(67,209,122,.14);
      display:inline-block;
    }
    .hero-topline strong{font-size:14px}
    .hero-time{
      display:flex;
      gap:8px;
      flex-wrap:wrap;
      justify-content:flex-end;
      font-size:13px;
      color:rgba(255,255,255,.72);
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);
      gap:22px;
      align-items:stretch;
      position:relative;
      z-index:1;
    }
    .hero-copy{
      padding:34px 28px;
      border-radius:28px;
      background:linear-gradient(135deg,#f8fbff 0%,#eef6ff 100%);
      border:1px solid #e1ebf8;
    }
    .hero h1{
      color:var(--color-ink);
      font-size:clamp(36px,5vw,66px);
      line-height:1.05;
      letter-spacing:-1.8px;
      margin:16px 0 20px;
      font-weight:950;
    }
    .hero-intro{
      font-size:18px;
      color:#405268;
      max-width:720px;
      margin:0 0 26px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-bottom:24px;
    }
    .hero-points{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:28px;
    }
    .point-card{
      padding:15px;
      border-radius:20px;
      background:#fff;
      border:1px solid var(--color-border);
      box-shadow:0 10px 26px rgba(16,32,51,.06);
    }
    .point-card b{
      display:block;
      color:var(--color-primary-dark);
      font-size:22px;
      line-height:1.1;
      margin-bottom:4px;
    }
    .point-card span{
      color:var(--color-muted);
      font-size:13px;
      line-height:1.45;
      display:block;
    }

    .demo-panel{
      min-height:100%;
      border-radius:28px;
      background:#fff;
      border:1px solid var(--color-border);
      box-shadow:var(--shadow-sm);
      overflow:hidden;
      display:flex;
      flex-direction:column;
    }
    .demo-head{
      padding:18px;
      background:linear-gradient(135deg,#11305f,#1f6feb);
      color:#fff;
    }
    .demo-head-row{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
    }
    .demo-title{
      font-weight:900;
      font-size:18px;
      margin:0 0 4px;
    }
    .demo-sub{
      margin:0;
      color:rgba(255,255,255,.76);
      font-size:14px;
    }
    .score-ring{
      width:76px;
      height:76px;
      border-radius:50%;
      background:conic-gradient(#43d17a 0 72%,rgba(255,255,255,.18) 72% 100%);
      display:grid;
      place-items:center;
      flex:0 0 auto;
    }
    .score-ring span{
      width:58px;
      height:58px;
      border-radius:50%;
      background:#173567;
      display:grid;
      place-items:center;
      font-weight:900;
      color:#fff;
    }
    .demo-body{
      padding:18px;
    }
    .check-input{
      display:flex;
      gap:10px;
      padding:10px;
      border:1px solid #d7e3f3;
      border-radius:18px;
      background:#f7fbff;
      margin-bottom:16px;
    }
    .check-input input{
      flex:1;
      height:44px;
      border:0;
      box-shadow:none;
      background:transparent;
      margin:0;
      color:var(--color-ink);
    }
    .check-input input:focus{box-shadow:none;background:transparent}
    .mini-btn{
      border:0;
      border-radius:14px;
      padding:0 16px;
      background:var(--color-primary);
      color:#fff;
      font-weight:850;
      transition:var(--transition);
    }
    .mini-btn:hover{background:var(--color-primary-dark)}
    .risk-list{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .risk-item{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:13px;
      border:1px solid #edf2f8;
      border-radius:16px;
      background:#fff;
      transition:var(--transition);
    }
    .risk-item:hover{
      transform:translateY(-2px);
      box-shadow:0 12px 26px rgba(16,32,51,.08);
      border-color:#d7e6fb;
    }
    .risk-icon{
      width:34px;
      height:34px;
      border-radius:12px;
      display:grid;
      place-items:center;
      flex:0 0 auto;
      background:var(--color-primary-soft);
      color:var(--color-primary);
    }
    .risk-item.warning .risk-icon{background:#fff3d7;color:#b77900}
    .risk-item.success .risk-icon{background:#e7f8f1;color:#16845f}
    .risk-text strong{
      display:block;
      color:var(--color-ink);
      line-height:1.35;
      margin-bottom:3px;
    }
    .risk-text span{
      display:block;
      color:var(--color-muted);
      font-size:13px;
      line-height:1.45;
    }
    .demo-foot{
      margin-top:auto;
      padding:16px 18px;
      background:#f8fbff;
      border-top:1px solid #eef3fa;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      color:var(--color-muted);
      font-size:13px;
    }

    .app-section{
      background:#fff;
    }
    .app-layout{
      display:grid;
      grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);
      gap:30px;
      align-items:center;
    }
    .app-console{
      border-radius:var(--radius-xl);
      border:1px solid var(--color-border);
      background:linear-gradient(180deg,#ffffff,#f8fbff);
      box-shadow:var(--shadow-md);
      overflow:hidden;
    }
    .console-bar{
      display:flex;
      align-items:center;
      gap:8px;
      height:54px;
      padding:0 18px;
      border-bottom:1px solid #e6eef8;
      background:#fbfdff;
    }
    .dot{width:10px;height:10px;border-radius:50%;background:#f35d5d}
    .dot:nth-child(2){background:#f6bf45}
    .dot:nth-child(3){background:#42c777}
    .console-content{padding:24px}
    .scan-card{
      border-radius:22px;
      background:var(--color-navy);
      color:#fff;
      padding:22px;
      margin-bottom:16px;
      position:relative;
      overflow:hidden;
    }
    .scan-card:after{
      content:"";
      position:absolute;
      width:180px;
      height:180px;
      border-radius:50%;
      right:-60px;
      top:-60px;
      background:rgba(72,163,255,.22);
    }
    .scan-card h3{position:relative;margin:0 0 8px;color:#fff;font-weight:900}
    .scan-card p{position:relative;margin:0;color:rgba(255,255,255,.72)}
    .progress-track{
      position:relative;
      height:10px;
      border-radius:999px;
      background:rgba(255,255,255,.16);
      margin-top:20px;
      overflow:hidden;
    }
    .progress-fill{
      height:100%;
      width:76%;
      border-radius:999px;
      background:linear-gradient(90deg,#43d17a,#7cc7ff);
    }
    .app-step-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
    }
    .app-step{
      border:1px solid #e7eef8;
      border-radius:20px;
      padding:16px;
      background:#fff;
    }
    .app-step i{
      width:38px;
      height:38px;
      border-radius:13px;
      background:var(--color-primary-soft);
      color:var(--color-primary);
      display:grid;
      place-items:center;
      margin-bottom:10px;
    }
    .app-step strong{
      display:block;
      color:var(--color-ink);
      margin-bottom:5px;
    }
    .app-step span{font-size:14px;color:var(--color-muted);display:block}
    .feature-list{
      display:grid;
      gap:14px;
      margin:24px 0 0;
      padding:0;
      list-style:none;
    }
    .feature-list li{
      display:flex;
      gap:13px;
      align-items:flex-start;
      padding:16px;
      border-radius:20px;
      background:#fff;
      border:1px solid var(--color-border);
      box-shadow:0 8px 22px rgba(16,32,51,.05);
    }
    .feature-list i{
      color:var(--color-success);
      margin-top:5px;
    }

    .stats-strip{
      background:linear-gradient(135deg,#0b1830,#173567);
      color:#fff;
      padding:38px 0;
    }
    .stats-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .stat-card{
      padding:22px;
      border-radius:22px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
    }
    .stat-card strong{
      display:block;
      color:#fff;
      font-size:34px;
      line-height:1;
      margin-bottom:10px;
      letter-spacing:-1px;
    }
    .stat-card span{
      display:block;
      color:rgba(255,255,255,.72);
      font-size:14px;
    }

    .service-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr .9fr;
      gap:18px;
      align-items:stretch;
    }
    .service-card{
      border:1px solid var(--color-border);
      border-radius:var(--radius-lg);
      background:#fff;
      box-shadow:var(--shadow-sm);
      padding:24px;
      transition:var(--transition);
      position:relative;
      overflow:hidden;
    }
    .service-card:hover{
      transform:translateY(-5px);
      box-shadow:var(--shadow-md);
      border-color:#c6daf2;
    }
    .service-card.large{
      grid-row:span 2;
      background:linear-gradient(180deg,#ffffff 0%,#eef6ff 100%);
    }
    .service-icon{
      width:48px;
      height:48px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:var(--color-primary-soft);
      color:var(--color-primary);
      font-size:20px;
      margin-bottom:16px;
    }
    .service-card h3{
      color:var(--color-ink);
      font-size:21px;
      font-weight:900;
      margin:0 0 9px;
    }
    .service-card p{
      color:var(--color-muted);
      margin:0;
      font-size:15px;
    }
    .service-tags{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:20px;
    }
    .mini-tag{
      padding:7px 10px;
      border-radius:999px;
      background:#f1f6fc;
      color:#53657b;
      font-size:13px;
      border:1px solid #e2ebf6;
    }

    .guard-section{
      background:#fff;
    }
    .guard-wrap{
      display:grid;
      grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
      gap:24px;
      align-items:stretch;
    }
    .guard-panel{
      border-radius:var(--radius-xl);
      background:linear-gradient(145deg,#12366d,#0b1830);
      color:#fff;
      padding:30px;
      box-shadow:var(--shadow-lg);
      min-height:100%;
    }
    .guard-panel h2{
      color:#fff;
      font-weight:950;
      letter-spacing:-.8px;
      line-height:1.15;
      font-size:clamp(28px,3vw,42px);
      margin:14px 0;
    }
    .guard-panel p{color:rgba(255,255,255,.74);margin:0 0 22px}
    .guard-badges{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .security-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px;
    }
    .security-card{
      border:1px solid var(--color-border);
      border-radius:24px;
      background:#fff;
      padding:20px;
      box-shadow:var(--shadow-sm);
    }
    .security-card i{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      color:var(--color-primary);
      background:var(--color-primary-soft);
      margin-bottom:12px;
    }
    .security-card h3{
      margin:0 0 7px;
      color:var(--color-ink);
      font-size:18px;
      font-weight:900;
    }
    .security-card p{
      margin:0;
      color:var(--color-muted);
      font-size:14px;
    }

    .about-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 360px;
      gap:28px;
      align-items:start;
    }
    .about-card{
      background:#fff;
      border:1px solid var(--color-border);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-md);
      padding:30px;
    }
    .about-card h2{
      color:var(--color-ink);
      font-size:clamp(28px,3vw,42px);
      line-height:1.18;
      margin:10px 0 16px;
      font-weight:950;
      letter-spacing:-.8px;
    }
    .about-card p{color:var(--color-muted);margin:0 0 18px}
    .timeline{
      display:grid;
      gap:14px;
      margin-top:24px;
    }
    .timeline-item{
      display:grid;
      grid-template-columns:42px 1fr;
      gap:14px;
      align-items:start;
    }
    .timeline-num{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      background:var(--color-primary);
      color:#fff;
      font-weight:900;
      box-shadow:0 10px 22px rgba(31,111,235,.24);
    }
    .timeline-text{
      padding-bottom:14px;
      border-bottom:1px solid #edf2f8;
    }
    .timeline-text strong{
      display:block;
      color:var(--color-ink);
      margin-bottom:4px;
    }
    .timeline-text span{
      display:block;
      color:var(--color-muted);
      font-size:14px;
    }
    .side-note{
      position:sticky;
      top:98px;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid var(--color-border);
      box-shadow:var(--shadow-sm);
      padding:24px;
    }
    .side-note h3{margin:0 0 10px;color:var(--color-ink);font-weight:900}
    .side-note p{margin:0 0 16px;color:var(--color-muted);font-size:14px}
    .notice-list{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .notice-list li{
      display:flex;
      gap:10px;
      color:#405268;
      font-size:14px;
    }
    .notice-list i{color:var(--color-warning);margin-top:5px}

    .compare-section{
      background:#fff;
    }
    .compare-wrap{
      border:1px solid var(--color-border);
      border-radius:var(--radius-xl);
      background:#fff;
      box-shadow:var(--shadow-md);
      overflow:hidden;
    }
    .compare-head{
      display:grid;
      grid-template-columns:1.2fr repeat(3,1fr);
      background:#f2f7ff;
      border-bottom:1px solid #dce8f7;
    }
    .compare-cell{
      padding:18px;
      border-right:1px solid #dce8f7;
      min-height:64px;
    }
    .compare-cell:last-child{border-right:0}
    .compare-head .compare-cell{
      color:var(--color-ink);
      font-weight:900;
    }
    .compare-row{
      display:grid;
      grid-template-columns:1.2fr repeat(3,1fr);
      border-bottom:1px solid #edf2f8;
    }
    .compare-row:last-child{border-bottom:0}
    .compare-row .compare-cell{
      color:var(--color-muted);
      font-size:14px;
    }
    .compare-cell.good{
      color:#137a58;
      background:#fbfffd;
      font-weight:750;
    }
    .compare-cell.bad{
      color:#9a3a3d;
      background:#fffafa;
    }
    .compare-cell.mid{
      color:#7a4a00;
      background:#fffdf7;
    }

    .news-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 360px;
      gap:24px;
      align-items:start;
    }
    .news-list{
      display:grid;
      gap:12px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .news-item a{
      display:grid;
      grid-template-columns:112px 1fr auto;
      gap:16px;
      align-items:center;
      padding:18px;
      border-radius:22px;
      border:1px solid var(--color-border);
      background:#fff;
      box-shadow:0 8px 20px rgba(16,32,51,.05);
      color:inherit;
    }
    .news-item a:hover,.news-item a:focus{
      transform:translateY(-3px);
      box-shadow:var(--shadow-sm);
      border-color:#c6daf2;
      color:inherit;
    }
    .news-date{
      color:var(--color-primary-dark);
      font-weight:900;
      font-size:14px;
    }
    .news-title{
      color:var(--color-ink);
      font-weight:900;
      margin-bottom:4px;
      display:block;
    }
    .news-desc{
      color:var(--color-muted);
      font-size:14px;
      display:block;
    }
    .news-arrow{
      width:36px;
      height:36px;
      border-radius:13px;
      background:var(--color-primary-soft);
      color:var(--color-primary);
      display:grid;
      place-items:center;
    }
    .recommend-card{
      border-radius:var(--radius-xl);
      border:1px solid var(--color-border);
      background:linear-gradient(180deg,#ffffff,#f3f8ff);
      box-shadow:var(--shadow-sm);
      padding:24px;
    }
    .recommend-card h3{
      margin:0 0 14px;
      color:var(--color-ink);
      font-weight:900;
    }
    .topic-list{
      display:grid;
      gap:10px;
      margin:0 0 18px;
      padding:0;
      list-style:none;
    }
    .topic-list a{
      display:flex;
      justify-content:space-between;
      gap:12px;
      padding:13px 0;
      border-bottom:1px solid #e8f0fa;
      color:#405268;
      font-weight:700;
    }
    .topic-list a:hover{color:var(--color-primary)}
    .topic-list span{color:var(--color-faint);font-size:13px;font-weight:650}

    .faq-section{
      background:
        radial-gradient(circle at 20% 0%,rgba(31,111,235,.12),transparent 28%),
        linear-gradient(180deg,#f7fbff,#ffffff);
    }
    .faq-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 390px;
      gap:24px;
      align-items:start;
    }
    .faq-list{
      display:grid;
      gap:14px;
    }
    .faq-item{
      border:1px solid var(--color-border);
      border-radius:24px;
      background:#fff;
      box-shadow:0 8px 22px rgba(16,32,51,.05);
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      border:0;
      background:#fff;
      color:var(--color-ink);
      padding:20px 22px;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:16px;
      text-align:left;
      font-weight:900;
      transition:var(--transition);
    }
    .faq-question:hover{background:#f8fbff}
    .faq-question i{transition:var(--transition);color:var(--color-primary)}
    .faq-item.open .faq-question i{transform:rotate(180deg)}
    .faq-answer{
      display:none;
      padding:0 22px 20px;
      color:var(--color-muted);
      font-size:15px;
    }
    .faq-item.open .faq-answer{display:block}
    .lead-form{
      border:1px solid var(--color-border);
      border-radius:var(--radius-xl);
      background:#fff;
      box-shadow:var(--shadow-md);
      padding:24px;
      position:sticky;
      top:98px;
    }
    .lead-form h3{
      color:var(--color-ink);
      margin:0 0 8px;
      font-weight:950;
      font-size:24px;
    }
    .lead-form p{
      color:var(--color-muted);
      margin:0 0 18px;
      font-size:14px;
    }
    .form-field{margin-bottom:14px}
    .form-field label{
      display:block;
      color:#405268;
      font-weight:800;
      margin-bottom:7px;
      font-size:14px;
    }
    .form-field input,
    .form-field textarea,
    .form-field select{
      width:100%;
      margin:0;
      border:1px solid #dbe5f1;
      border-radius:16px;
      background:#fbfdff;
      color:var(--color-ink);
      box-shadow:none;
      padding:12px 14px;
    }
    .form-field textarea{min-height:104px;resize:vertical}
    .form-field input:focus,
    .form-field textarea:focus,
    .form-field select:focus{
      border-color:var(--color-primary);
      background:#fff;
      box-shadow:0 0 0 4px rgba(31,111,235,.1);
    }
    .form-tip{
      display:flex;
      gap:9px;
      align-items:flex-start;
      color:#65758a;
      font-size:13px;
      margin:10px 0 16px;
    }
    .form-tip i{color:var(--color-success);margin-top:4px}
    .form-message{
      display:none;
      margin-top:12px;
      padding:12px 14px;
      border-radius:16px;
      background:#e7f8f1;
      color:#12684b;
      font-weight:750;
      font-size:14px;
    }

    .site-footer{
      background:var(--color-navy);
      color:rgba(255,255,255,.76);
      padding:54px 0 26px;
      position:relative;
      overflow:hidden;
    }
    .site-footer:before{
      content:"";
      position:absolute;
      width:380px;
      height:380px;
      border-radius:50%;
      right:-160px;
      top:-210px;
      background:rgba(31,111,235,.18);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.25fr .75fr .75fr;
      gap:28px;
      position:relative;
      z-index:1;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-size:20px;
      font-weight:900;
      margin-bottom:14px;
    }
    .footer-brand .brand-mark{width:40px;height:40px}
    .footer-copy{
      max-width:620px;
      margin:0;
      color:rgba(255,255,255,.68);
    }
    .footer-col h3{
      color:#fff;
      font-size:16px;
      margin:0 0 14px;
      font-weight:900;
    }
    .footer-links{
      display:grid;
      gap:9px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .footer-links a{
      color:rgba(255,255,255,.68);
    }
    .footer-links a:hover,.footer-links a:focus{color:#fff}
    .footer-bottom{
      position:relative;
      z-index:1;
      margin-top:34px;
      padding-top:20px;
      border-top:1px solid rgba(255,255,255,.1);
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      color:rgba(255,255,255,.56);
      font-size:14px;
    }

    @media (max-width:1024px){
      .nav-search{display:none}
      .hero-grid,
      .app-layout,
      .guard-wrap,
      .about-layout,
      .news-layout,
      .faq-layout{
        grid-template-columns:1fr;
      }
      .side-note,.lead-form{position:static}
      .stats-grid{grid-template-columns:repeat(2,1fr)}
      .service-grid{grid-template-columns:repeat(2,1fr)}
      .service-card.large{grid-row:auto;grid-column:span 2}
      .footer-grid{grid-template-columns:1fr 1fr}
    }

    @media (max-width:768px){
      .site-container{width:min(100% - 28px,var(--container))}
      .nav-wrap{min-height:68px}
      .brand-text{max-width:190px;font-size:17px}
      .menu-toggle{display:flex}
      .main-nav{
        position:fixed;
        left:14px;
        right:14px;
        top:78px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        gap:10px;
        padding:16px;
        border-radius:24px;
        background:rgba(11,24,48,.98);
        border:1px solid rgba(255,255,255,.1);
        box-shadow:0 24px 70px rgba(0,0,0,.34);
      }
      body.nav-open .main-nav{display:flex}
      .nav-link,.nav-cta{justify-content:center;text-align:center}
      .hero{padding:42px 0 48px}
      .hero-board{padding:14px;border-radius:26px}
      .hero-topline{align-items:flex-start;flex-direction:column}
      .hero-time{justify-content:flex-start}
      .hero-copy{padding:24px 18px}
      .hero-grid{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .demo-head-row{align-items:flex-start;flex-direction:column}
      .score-ring{width:64px;height:64px}
      .score-ring span{width:48px;height:48px}
      .section{padding:62px 0}
      .section.compact{padding:48px 0}
      .service-grid,
      .security-grid,
      .app-step-grid,
      .stats-grid{
        grid-template-columns:1fr;
      }
      .service-card.large{grid-column:auto}
      .compare-wrap{overflow-x:auto}
      .compare-head,.compare-row{
        min-width:760px;
      }
      .news-item a{
        grid-template-columns:1fr auto;
      }
      .news-date{
        grid-column:1 / -1;
      }
      .footer-grid{grid-template-columns:1fr}
    }

    @media (max-width:520px){
      body{font-size:15px}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .brand-text{max-width:154px}
      .hero h1{font-size:35px;letter-spacing:-1.2px}
      .hero-intro{font-size:16px}
      .hero-actions .btn{width:100%}
      .check-input{flex-direction:column}
      .mini-btn{height:42px}
      .demo-foot{flex-direction:column;align-items:flex-start}
      .section-title{font-size:29px}
      .stat-card strong{font-size:29px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-bottom:8px}
    }