/* roulang page: index */
:root{
      --brand:#1769ff;
      --brand-2:#42b3ff;
      --brand-3:#0b48c8;
      --ink:#102033;
      --muted:#66758a;
      --soft:#f4f8ff;
      --soft-2:#eef5ff;
      --line:#dbe7f6;
      --card:#ffffff;
      --success:#16a36a;
      --warning:#f59e0b;
      --danger:#ef4444;
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --shadow-sm:0 8px 22px rgba(23,105,255,.08);
      --shadow:0 18px 50px rgba(16,32,51,.10);
      --shadow-hover:0 24px 70px rgba(23,105,255,.16);
      --container:1160px;
      --nav-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(--ink);
      background:
        radial-gradient(circle at 10% 0%, rgba(66,179,255,.16), transparent 34%),
        radial-gradient(circle at 86% 12%, rgba(23,105,255,.13), transparent 30%),
        linear-gradient(180deg,#ffffff 0%,#f7fbff 46%,#ffffff 100%);
      line-height:1.75;
      overflow-x:hidden;
    }

    a{
      color:inherit;
      text-decoration:none;
      transition:color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
    }
    a:hover{color:var(--brand);}
    img{max-width:100%;display:block;}
    button,input,textarea,select{font:inherit;}
    button{border:0;background:none;}
    ::selection{background:rgba(23,105,255,.18);color:var(--brand-3);}

    .container-xl{max-width:var(--container);}
    .section{
      padding:86px 0;
      position:relative;
    }
    .section-tight{padding:66px 0;}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 14px;
      border-radius:999px;
      background:rgba(23,105,255,.09);
      color:var(--brand-3);
      font-weight:800;
      font-size:.9rem;
      letter-spacing:.02em;
      border:1px solid rgba(23,105,255,.14);
    }
    .eyebrow i{font-size:.82rem;}
    .section-title{
      margin:18px 0 12px;
      font-weight:900;
      letter-spacing:-.04em;
      line-height:1.14;
      font-size:clamp(2rem,3.4vw,3.4rem);
    }
    .section-desc{
      max-width:760px;
      color:var(--muted);
      font-size:1.06rem;
      margin:0;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1030;
      background:rgba(255,255,255,.82);
      backdrop-filter:saturate(180%) blur(18px);
      border-bottom:1px solid rgba(219,231,246,.78);
    }
    .navbar{
      min-height:var(--nav-h);
      padding:12px 0;
    }
    .brand-logo{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:950;
      letter-spacing:-.03em;
      color:var(--ink);
      white-space:nowrap;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      color:white;
      background:
        linear-gradient(135deg,var(--brand),var(--brand-2));
      box-shadow:0 12px 28px rgba(23,105,255,.22);
      position:relative;
      overflow:hidden;
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      width:22px;
      height:22px;
      border:2px solid rgba(255,255,255,.65);
      border-radius:50%;
      right:-6px;
      bottom:-4px;
    }
    .brand-name{
      font-size:1.18rem;
      line-height:1;
    }
    .navbar-toggler{
      border:1px solid var(--line);
      border-radius:14px;
      padding:10px 12px;
      box-shadow:none!important;
    }
    .nav-shell{
      display:flex;
      align-items:center;
      gap:14px;
      width:100%;
      justify-content:flex-end;
    }
    .segmented-nav{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px;
      border:1px solid var(--line);
      background:#f8fbff;
      border-radius:999px;
      box-shadow:var(--shadow-sm);
    }
    .segmented-nav .nav-link{
      border-radius:999px;
      padding:9px 18px;
      color:#476178;
      font-weight:800;
      line-height:1;
    }
    .segmented-nav .nav-link:hover{
      color:var(--brand);
      background:rgba(23,105,255,.07);
    }
    .segmented-nav .nav-link.active{
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      box-shadow:0 10px 24px rgba(23,105,255,.18);
    }
    .nav-search{
      display:flex;
      align-items:center;
      gap:8px;
      width:240px;
      padding:9px 12px;
      border:1px solid var(--line);
      border-radius:999px;
      background:#fff;
    }
    .nav-search i{color:var(--brand);}
    .nav-search input{
      border:0;
      outline:none;
      width:100%;
      color:var(--ink);
      background:transparent;
      font-size:.94rem;
    }
    .nav-search input::placeholder{color:#9aa8b8;}
    .nav-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:11px 18px;
      border-radius:999px;
      background:var(--ink);
      color:#fff;
      font-weight:850;
      box-shadow:0 12px 28px rgba(16,32,51,.16);
    }
    .nav-cta:hover{
      color:#fff;
      transform:translateY(-2px);
      background:#0a1625;
      box-shadow:0 16px 36px rgba(16,32,51,.22);
    }

    .btn-main,
    .btn-ghost,
    .btn-soft{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      border-radius:999px;
      padding:14px 22px;
      font-weight:900;
      min-height:52px;
      border:1px solid transparent;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
    }
    .btn-main{
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      box-shadow:0 16px 34px rgba(23,105,255,.24);
    }
    .btn-main:hover,.btn-main:focus{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 22px 48px rgba(23,105,255,.3);
    }
    .btn-ghost{
      color:var(--ink);
      background:#fff;
      border-color:var(--line);
      box-shadow:var(--shadow-sm);
    }
    .btn-ghost:hover,.btn-ghost:focus{
      color:var(--brand);
      border-color:rgba(23,105,255,.35);
      transform:translateY(-2px);
      box-shadow:var(--shadow);
    }
    .btn-soft{
      color:var(--brand-3);
      background:rgba(23,105,255,.09);
      border-color:rgba(23,105,255,.12);
    }
    .btn-soft:hover{
      background:rgba(23,105,255,.14);
      color:var(--brand-3);
      transform:translateY(-2px);
    }
    .btn-main:focus-visible,
    .btn-ghost:focus-visible,
    .btn-soft:focus-visible,
    .nav-link:focus-visible,
    .nav-cta:focus-visible,
    input:focus-visible,
    textarea:focus-visible{
      outline:4px solid rgba(23,105,255,.18);
      outline-offset:2px;
    }

    .hero{
      padding:62px 0 34px;
    }
    .hero-panel{
      border:1px solid rgba(219,231,246,.9);
      border-radius:38px;
      background:
        linear-gradient(135deg,rgba(255,255,255,.96),rgba(244,248,255,.9)),
        radial-gradient(circle at 80% 20%, rgba(66,179,255,.22), transparent 34%);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .hero-panel::before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(23,105,255,.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(23,105,255,.055) 1px, transparent 1px);
      background-size:38px 38px;
      mask-image:linear-gradient(90deg,#000 0%,transparent 84%);
      pointer-events:none;
    }
    .hero-content{
      position:relative;
      z-index:2;
      padding:58px;
    }
    .hero h1{
      margin:18px 0 18px;
      max-width:920px;
      font-size:clamp(2.25rem,5vw,5.1rem);
      font-weight:950;
      line-height:1.02;
      letter-spacing:-.065em;
    }
    .hero-lead{
      max-width:820px;
      color:#52657a;
      font-size:1.12rem;
      margin-bottom:28px;
    }
    .hero-actions{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:14px;
      margin-bottom:30px;
    }
    .hero-data{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:6px;
    }
    .data-pill{
      display:flex;
      align-items:center;
      gap:12px;
      padding:13px 16px;
      border-radius:18px;
      background:rgba(255,255,255,.78);
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      min-width:168px;
    }
    .data-pill strong{
      display:block;
      font-size:1.14rem;
      line-height:1;
      letter-spacing:-.02em;
    }
    .data-pill span{
      display:block;
      color:var(--muted);
      font-size:.85rem;
      margin-top:3px;
    }
    .data-icon{
      width:38px;
      height:38px;
      border-radius:13px;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
    }
    .hero-demo{
      margin-top:34px;
      padding:20px;
      border-radius:28px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 22px 55px rgba(16,32,51,.10);
    }
    .demo-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding-bottom:15px;
      border-bottom:1px solid var(--line);
    }
    .demo-dots{display:flex;gap:7px;}
    .demo-dots span{
      width:10px;height:10px;border-radius:50%;
      background:#c8d6e7;
    }
    .demo-dots span:nth-child(1){background:#ff6b6b;}
    .demo-dots span:nth-child(2){background:#ffd166;}
    .demo-dots span:nth-child(3){background:#06d6a0;}
    .demo-status{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--success);
      font-weight:850;
      font-size:.92rem;
      white-space:nowrap;
    }
    .demo-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:18px;
      padding-top:18px;
    }
    .demo-search{
      padding:18px;
      border-radius:22px;
      background:linear-gradient(180deg,#f8fbff,#ffffff);
      border:1px solid var(--line);
    }
    .demo-searchbar{
      display:flex;
      align-items:center;
      gap:12px;
      padding:13px 15px;
      border-radius:18px;
      border:1px solid var(--line);
      background:#fff;
      color:var(--muted);
      margin-bottom:16px;
    }
    .demo-tags{
      display:flex;
      flex-wrap:wrap;
      gap:9px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 11px;
      border-radius:999px;
      background:rgba(23,105,255,.08);
      color:var(--brand-3);
      border:1px solid rgba(23,105,255,.1);
      font-weight:800;
      font-size:.86rem;
    }
    .tag.neutral{background:#f4f7fb;color:#52657a;border-color:#e4edf7;}
    .demo-steps{
      display:grid;
      gap:10px;
    }
    .step-row{
      display:flex;
      align-items:center;
      gap:12px;
      padding:13px;
      border-radius:18px;
      background:#f8fbff;
      border:1px solid var(--line);
    }
    .step-no{
      width:30px;height:30px;border-radius:11px;
      display:grid;place-items:center;
      background:#fff;color:var(--brand);font-weight:950;
      border:1px solid var(--line);
      flex:0 0 auto;
    }
    .step-row b{display:block;line-height:1.2;}
    .step-row small{color:var(--muted);}

    .progress-board{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:24px;
      align-items:stretch;
      margin-top:34px;
    }
    .board-card,.metric-card,.tier-card,.wall-card,.news-card,.compare-wrap,.faq-card,.form-card,.service-card{
      background:var(--card);
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow-sm);
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    }
    .board-card:hover,.metric-card:hover,.tier-card:hover,.wall-card:hover,.news-card:hover,.service-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(23,105,255,.22);
    }
    .board-card{
      padding:28px;
    }
    .progress-head{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:18px;
      margin-bottom:24px;
    }
    .progress-head strong{
      display:block;
      font-size:2.25rem;
      letter-spacing:-.04em;
      line-height:1;
    }
    .progress-head span{color:var(--muted);}
    .status-badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(22,163,106,.1);
      color:var(--success);
      font-weight:900;
      white-space:nowrap;
      font-size:.9rem;
    }
    .progress{
      height:14px;
      border-radius:999px;
      background:#e8f1ff;
      overflow:hidden;
    }
    .progress-bar{
      background:linear-gradient(90deg,var(--brand),var(--brand-2));
      border-radius:999px;
    }
    .progress-meta{
      display:flex;
      justify-content:space-between;
      color:var(--muted);
      font-size:.93rem;
      margin-top:12px;
    }
    .mini-list{
      display:grid;
      gap:12px;
      margin-top:24px;
    }
    .mini-item{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:14px;
      border-radius:16px;
      background:#f8fbff;
      border:1px solid #e8f0fb;
    }
    .mini-item b{font-size:.98rem;}
    .mini-item span{color:var(--muted);font-size:.9rem;}
    .metrics-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px;
    }
    .metric-card{
      padding:22px;
      min-height:154px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .metric-card .metric-icon{
      width:44px;height:44px;border-radius:15px;
      display:grid;place-items:center;
      background:rgba(23,105,255,.09);
      color:var(--brand);
      margin-bottom:18px;
    }
    .metric-card strong{
      font-size:2rem;
      line-height:1;
      letter-spacing:-.04em;
    }
    .metric-card p{
      color:var(--muted);
      margin:8px 0 0;
      font-size:.95rem;
    }

    .service-matrix{
      margin-top:34px;
      display:grid;
      grid-template-columns:1.1fr .9fr .9fr;
      gap:18px;
    }
    .service-card{
      padding:24px;
      min-height:210px;
      position:relative;
      overflow:hidden;
    }
    .service-card.featured{
      background:linear-gradient(135deg,#ffffff,#edf6ff);
    }
    .service-card .service-icon{
      width:48px;height:48px;border-radius:17px;
      display:grid;place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      margin-bottom:18px;
      box-shadow:0 12px 26px rgba(23,105,255,.18);
    }
    .service-card h3{
      font-size:1.2rem;
      font-weight:900;
      margin-bottom:10px;
      letter-spacing:-.02em;
    }
    .service-card p{
      color:var(--muted);
      margin:0;
      font-size:.98rem;
    }
    .service-card .corner-badge{
      position:absolute;
      top:18px;
      right:18px;
      padding:6px 10px;
      border-radius:999px;
      background:#fff;
      color:var(--brand);
      font-weight:900;
      font-size:.78rem;
      border:1px solid var(--line);
    }

    .tier-wrap{
      margin-top:34px;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .tier-card{
      padding:26px;
      position:relative;
      overflow:hidden;
    }
    .tier-card.hot{
      border-color:rgba(23,105,255,.32);
      box-shadow:0 20px 60px rgba(23,105,255,.13);
    }
    .tier-card.hot::before{
      content:"推荐";
      position:absolute;
      top:18px;
      right:-28px;
      transform:rotate(35deg);
      width:118px;
      text-align:center;
      padding:5px 0;
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      font-size:.78rem;
      font-weight:900;
    }
    .tier-level{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:18px;
    }
    .tier-level b{
      font-size:1.2rem;
      font-weight:950;
    }
    .tier-price{
      font-size:2.15rem;
      font-weight:950;
      letter-spacing:-.05em;
      margin-bottom:8px;
    }
    .tier-price small{
      font-size:.9rem;
      color:var(--muted);
      font-weight:800;
      letter-spacing:0;
    }
    .tier-card p{
      color:var(--muted);
      margin-bottom:18px;
      min-height:54px;
    }
    .check-list{
      display:grid;
      gap:10px;
      padding:0;
      margin:0 0 22px;
      list-style:none;
    }
    .check-list li{
      display:flex;
      align-items:flex-start;
      gap:9px;
      color:#41566d;
      font-size:.95rem;
    }
    .check-list i{
      color:var(--success);
      margin-top:5px;
    }

    .support-wall{
      margin-top:34px;
      display:grid;
      grid-template-columns:1fr 1.3fr;
      gap:22px;
      align-items:stretch;
    }
    .creator-card{
      border-radius:var(--radius-lg);
      background:
        linear-gradient(180deg,rgba(23,105,255,.1),rgba(255,255,255,.96)),
        radial-gradient(circle at 75% 10%, rgba(66,179,255,.24), transparent 34%);
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      padding:28px;
      overflow:hidden;
    }
    .creator-head{
      display:flex;
      align-items:center;
      gap:16px;
      margin-bottom:20px;
    }
    .avatar{
      width:70px;height:70px;border-radius:24px;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      color:#fff;
      display:grid;place-items:center;
      font-size:1.55rem;
      box-shadow:0 18px 34px rgba(23,105,255,.2);
      flex:0 0 auto;
    }
    .creator-head h3{
      margin:0;
      font-weight:950;
      letter-spacing:-.03em;
    }
    .creator-head span{color:var(--muted);}
    .badge-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin:18px 0 24px;
    }
    .data-badge{
      padding:10px 12px;
      border-radius:14px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      font-weight:900;
      color:var(--brand-3);
    }
    .work-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
    }
    .work-item{
      padding:16px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--line);
      min-height:126px;
    }
    .work-item i{
      color:var(--brand);
      margin-bottom:12px;
      font-size:1.2rem;
    }
    .work-item b{display:block;margin-bottom:6px;}
    .work-item span{color:var(--muted);font-size:.92rem;}
    .wall-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px;
    }
    .wall-card{
      padding:22px;
    }
    .wall-card p{
      color:#42576d;
      margin:0 0 18px;
    }
    .wall-user{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .wall-user .dot-avatar{
      width:42px;height:42px;border-radius:16px;
      background:#eef5ff;
      color:var(--brand);
      display:grid;place-items:center;
      font-weight:950;
      border:1px solid var(--line);
      flex:0 0 auto;
    }
    .wall-user b{display:block;}
    .wall-user small{color:var(--muted);}

    .news-layout{
      display:grid;
      grid-template-columns:1.35fr .65fr;
      gap:24px;
      margin-top:34px;
      align-items:start;
    }
    .news-card{
      padding:12px;
    }
    .news-list{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:2px;
    }
    .news-list li a{
      display:grid;
      grid-template-columns:auto 1fr auto;
      align-items:center;
      gap:14px;
      padding:18px;
      border-radius:16px;
      color:var(--ink);
    }
    .news-list li a:hover{
      background:#f4f8ff;
      color:var(--brand);
      transform:translateX(3px);
    }
    .news-index{
      width:32px;height:32px;border-radius:12px;
      display:grid;place-items:center;
      background:rgba(23,105,255,.09);
      color:var(--brand);
      font-weight:950;
    }
    .news-list b{
      display:block;
      font-size:1.02rem;
      line-height:1.36;
    }
    .news-list span{
      display:block;
      color:var(--muted);
      font-size:.9rem;
      margin-top:4px;
    }
    .news-meta{
      white-space:nowrap;
      color:#7d8da0;
      font-size:.9rem;
      font-weight:800;
    }
    .rank-card{
      padding:24px;
      border-radius:var(--radius);
      background:linear-gradient(180deg,#102033,#173a75);
      color:#fff;
      box-shadow:0 24px 70px rgba(16,32,51,.22);
    }
    .rank-card h3{
      font-weight:950;
      margin-bottom:16px;
      letter-spacing:-.03em;
    }
    .rank-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:12px;
    }
    .rank-list li{
      display:grid;
      grid-template-columns:auto 1fr auto;
      align-items:center;
      gap:12px;
      padding:12px;
      border-radius:16px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.1);
    }
    .rank-no{
      width:28px;height:28px;border-radius:10px;
      display:grid;place-items:center;
      background:rgba(66,179,255,.18);
      font-weight:950;
    }
    .rank-list b{display:block;font-size:.95rem;}
    .rank-list small{color:rgba(255,255,255,.68);}
    .trend-up{
      color:#7cf7c8;
      font-weight:950;
      white-space:nowrap;
    }

    .compare-wrap{
      margin-top:34px;
      overflow:hidden;
    }
    .compare-table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      margin:0;
    }
    .compare-table th,
    .compare-table td{
      padding:18px 20px;
      border-bottom:1px solid var(--line);
      vertical-align:middle;
    }
    .compare-table th{
      background:#f5f9ff;
      color:#29435e;
      font-weight:950;
    }
    .compare-table tr:last-child td{border-bottom:0;}
    .compare-table td:first-child{
      font-weight:900;
      color:var(--ink);
      width:28%;
    }
    .compare-good{
      color:var(--success);
      font-weight:900;
    }
    .compare-normal{
      color:#708199;
      font-weight:800;
    }

    .faq-wrap{
      margin-top:34px;
      display:grid;
      gap:14px;
    }
    .accordion-item{
      border:1px solid var(--line)!important;
      border-radius:18px!important;
      overflow:hidden;
      background:#fff;
      box-shadow:var(--shadow-sm);
    }
    .accordion-button{
      padding:20px 22px;
      font-weight:950;
      color:var(--ink);
      background:#fff;
      box-shadow:none!important;
    }
    .accordion-button:not(.collapsed){
      color:var(--brand-3);
      background:#f5f9ff;
    }
    .accordion-button:focus{
      border-color:rgba(23,105,255,.22);
      box-shadow:0 0 0 .25rem rgba(23,105,255,.12)!important;
    }
    .accordion-body{
      color:var(--muted);
      padding:0 22px 22px;
    }

    .cta-section{
      padding:72px 0 94px;
    }
    .cta-wrap{
      display:grid;
      grid-template-columns:.92fr 1.08fr;
      gap:24px;
      align-items:stretch;
      border-radius:34px;
      padding:26px;
      background:
        linear-gradient(135deg,#102033,#174db5 62%,#42b3ff);
      box-shadow:0 26px 80px rgba(23,105,255,.24);
      color:#fff;
      overflow:hidden;
      position:relative;
    }
    .cta-wrap::after{
      content:"";
      position:absolute;
      width:360px;height:360px;border-radius:50%;
      right:-120px;top:-130px;
      background:rgba(255,255,255,.12);
      pointer-events:none;
    }
    .cta-copy{
      padding:28px;
      position:relative;
      z-index:1;
    }
    .cta-copy h2{
      font-size:clamp(2rem,3.4vw,3.35rem);
      font-weight:950;
      line-height:1.12;
      letter-spacing:-.05em;
      margin:14px 0 14px;
    }
    .cta-copy p{
      color:rgba(255,255,255,.78);
      margin:0 0 24px;
      max-width:520px;
    }
    .cta-copy .eyebrow{
      background:rgba(255,255,255,.12);
      color:#fff;
      border-color:rgba(255,255,255,.16);
    }
    .cta-points{
      display:grid;
      gap:12px;
      margin-top:22px;
    }
    .cta-point{
      display:flex;
      align-items:center;
      gap:12px;
      color:rgba(255,255,255,.9);
    }
    .cta-point i{
      width:30px;height:30px;border-radius:10px;
      display:grid;place-items:center;
      background:rgba(255,255,255,.14);
      color:#fff;
    }
    .form-card{
      padding:24px;
      border-radius:26px;
      position:relative;
      z-index:1;
      box-shadow:none;
    }
    .form-label{
      font-weight:900;
      color:var(--ink);
      margin-bottom:8px;
    }
    .form-control,.form-select{
      min-height:50px;
      border-radius:15px;
      border-color:var(--line);
      background:#f9fbff;
      color:var(--ink);
      box-shadow:none!important;
    }
    .form-control:focus,.form-select:focus{
      border-color:rgba(23,105,255,.45);
      background:#fff;
      box-shadow:0 0 0 .25rem rgba(23,105,255,.12)!important;
    }
    textarea.form-control{min-height:118px;resize:vertical;}
    .form-hint{
      color:var(--muted);
      font-size:.9rem;
      margin-top:10px;
    }
    .submit-note{
      display:none;
      margin-top:14px;
      padding:12px 14px;
      border-radius:14px;
      background:rgba(22,163,106,.1);
      color:var(--success);
      font-weight:850;
      border:1px solid rgba(22,163,106,.18);
    }

    .site-footer{
      background:#0b1625;
      color:#dce7f5;
      padding:54px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:24px;
      padding-bottom:32px;
      border-bottom:1px solid rgba(255,255,255,.1);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-weight:950;
      font-size:1.18rem;
      margin-bottom:14px;
    }
    .footer-brand .brand-mark{
      width:40px;height:40px;
      box-shadow:none;
    }
    .footer-desc{
      color:rgba(220,231,245,.72);
      max-width:520px;
      margin:0;
    }
    .footer-title{
      color:#fff;
      font-weight:950;
      margin-bottom:14px;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:rgba(220,231,245,.72);
    }
    .footer-links a:hover{
      color:#fff;
      transform:translateX(3px);
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:18px;
      padding-top:22px;
      color:rgba(220,231,245,.62);
      font-size:.92rem;
      flex-wrap:wrap;
    }
    .footer-bottom a{color:rgba(220,231,245,.75);}
    .footer-bottom a:hover{color:#fff;}

    @media (max-width: 1024px){
      .hero-content{padding:42px;}
      .demo-grid,.progress-board,.support-wall,.news-layout,.cta-wrap{
        grid-template-columns:1fr;
      }
      .service-matrix{
        grid-template-columns:repeat(2,1fr);
      }
      .tier-wrap{
        grid-template-columns:1fr;
      }
      .nav-search{width:210px;}
    }

    @media (max-width: 991.98px){
      .navbar-collapse{
        padding:16px 0 8px;
      }
      .nav-shell{
        align-items:stretch;
        justify-content:flex-start;
      }
      .segmented-nav{
        width:100%;
        justify-content:flex-start;
        overflow-x:auto;
        border-radius:18px;
      }
      .segmented-nav .nav-link{
        white-space:nowrap;
      }
      .nav-search{
        width:100%;
        border-radius:18px;
      }
      .nav-cta{
        width:100%;
        border-radius:18px;
      }
      .service-matrix,.metrics-grid,.wall-grid,.work-grid,.footer-grid{
        grid-template-columns:1fr;
      }
      .section{padding:68px 0;}
      .section-tight{padding:54px 0;}
    }

    @media (max-width: 768px){
      :root{--nav-h:68px;}
      .hero{padding-top:34px;}
      .hero-panel{border-radius:28px;}
      .hero-content{padding:28px;}
      .hero h1{letter-spacing:-.05em;}
      .hero-lead{font-size:1rem;}
      .hero-actions .btn-main,
      .hero-actions .btn-ghost{
        width:100%;
      }
      .hero-data{
        display:grid;
        grid-template-columns:1fr;
      }
      .demo-top{
        align-items:flex-start;
        flex-direction:column;
      }
      .progress-head{
        flex-direction:column;
      }
      .compare-wrap{
        overflow-x:auto;
      }
      .compare-table{
        min-width:720px;
      }
      .news-list li a{
        grid-template-columns:auto 1fr;
      }
      .news-meta{
        grid-column:2;
      }
      .cta-wrap{
        padding:16px;
        border-radius:26px;
      }
      .cta-copy{padding:18px;}
      .form-card{padding:20px;}
      .footer-bottom{
        align-items:flex-start;
        flex-direction:column;
      }
    }

    @media (max-width: 520px){
      .container-xl{padding-left:18px;padding-right:18px;}
      .brand-name{font-size:1.05rem;}
      .brand-mark{width:38px;height:38px;border-radius:13px;}
      .section-title{font-size:2rem;}
      .hero-content{padding:22px;}
      .hero h1{font-size:2.3rem;}
      .data-pill{min-width:0;width:100%;}
      .board-card,.tier-card,.creator-card,.wall-card,.rank-card{
        padding:20px;
      }
      .metric-card{min-height:auto;}
      .tier-price{font-size:1.85rem;}
      .news-list li a{padding:14px;}
      .section{padding:58px 0;}
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}