/* roulang page: index */
:root{
      --bg:#070b16;
      --bg-soft:#0d1424;
      --surface:#111a2e;
      --surface-2:#162238;
      --surface-3:#0b1220;
      --text:#eef4ff;
      --muted:#a7b3c9;
      --weak:#77839a;
      --line:rgba(255,255,255,.11);
      --primary:#7c3aed;
      --primary-2:#22d3ee;
      --accent:#f59e0b;
      --success:#34d399;
      --danger:#fb7185;
      --white:#ffffff;
      --shadow:0 24px 70px rgba(0,0,0,.32);
      --shadow-soft:0 14px 38px rgba(5,10,25,.24);
      --radius-xl:30px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1160px;
      --nav-h:76px;
      --ease:all .24s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      line-height:1.72;
      background:
        radial-gradient(circle at 8% 4%, rgba(124,58,237,.34), transparent 28%),
        radial-gradient(circle at 88% 10%, rgba(34,211,238,.2), transparent 24%),
        radial-gradient(circle at 45% 88%, rgba(245,158,11,.12), transparent 30%),
        var(--bg);
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    a:hover{color:var(--primary-2)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(34,211,238,.28);color:#fff}

    .site-shell{
      position:relative;
      overflow:hidden;
    }
    .site-shell:before{
      content:"";
      position:absolute;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
      background-size:56px 56px;
      mask-image:linear-gradient(to bottom, rgba(0,0,0,.7), transparent 62%);
      z-index:0;
    }
    .container{
      max-width:var(--container);
      padding-left:22px;
      padding-right:22px;
      position:relative;
      z-index:1;
    }

    .skip-link{
      position:absolute;
      left:-999px;
      top:12px;
      z-index:9999;
      padding:10px 14px;
      border-radius:999px;
      background:var(--primary-2);
      color:#04111f;
      font-weight:800;
    }
    .skip-link:focus{left:14px;outline:3px solid rgba(255,255,255,.45)}

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      min-height:var(--nav-h);
      border-bottom:1px solid rgba(255,255,255,.08);
      background:rgba(7,11,22,.78);
      backdrop-filter:blur(18px);
      box-shadow:0 8px 30px rgba(0,0,0,.18);
    }
    .navbar{
      min-height:var(--nav-h);
      padding:12px 0;
    }
    .navbar-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:var(--text);
      font-weight:900;
      letter-spacing:-.02em;
      white-space:normal;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      color:#06111d;
      background:linear-gradient(135deg,var(--primary-2),var(--accent));
      box-shadow:0 12px 30px rgba(34,211,238,.24);
      font-weight:950;
      letter-spacing:-.06em;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.16;
    }
    .brand-text strong{
      font-size:1.05rem;
    }
    .brand-text span{
      font-size:.72rem;
      color:var(--muted);
      font-weight:600;
      letter-spacing:.04em;
    }
    .navbar-toggler{
      border:1px solid var(--line);
      border-radius:14px;
      padding:9px 11px;
      color:var(--text);
      background:rgba(255,255,255,.04);
      box-shadow:none!important;
    }
    .navbar-toggler:focus{outline:3px solid rgba(34,211,238,.25)}
    .navbar-toggler-icon{
      filter:invert(1) grayscale(1);
      opacity:.85;
    }
    .nav-wrap{
      gap:16px;
    }
    .navbar-nav .nav-link{
      position:relative;
      color:var(--muted);
      font-weight:750;
      padding:10px 14px!important;
      border-radius:999px;
    }
    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link:focus{
      color:#fff;
      background:rgba(255,255,255,.07);
      outline:none;
    }
    .navbar-nav .nav-link.active{
      color:#07111f;
      background:linear-gradient(135deg,var(--primary-2),#a78bfa);
      box-shadow:0 12px 24px rgba(34,211,238,.18);
    }
    .lang-pill{
      display:flex;
      align-items:center;
      gap:6px;
      padding:5px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(255,255,255,.045);
    }
    .lang-pill span{
      padding:7px 10px;
      border-radius:999px;
      color:var(--muted);
      font-size:.86rem;
      font-weight:800;
      line-height:1;
    }
    .lang-pill .is-on{
      color:#06111d;
      background:#fff;
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:42px;
      padding:10px 16px;
      border-radius:999px;
      color:#06111d;
      font-weight:900;
      background:linear-gradient(135deg,var(--accent),#fde68a);
      box-shadow:0 14px 30px rgba(245,158,11,.18);
    }
    .nav-cta:hover{color:#06111d;transform:translateY(-2px);box-shadow:0 18px 38px rgba(245,158,11,.25)}
    .btn{
      border:0;
      border-radius:999px;
      font-weight:900;
      letter-spacing:.01em;
      transition:var(--ease);
    }
    .btn:focus-visible,
    .form-control:focus{
      outline:3px solid rgba(34,211,238,.28);
      outline-offset:2px;
      box-shadow:none;
    }
    .btn-primary-custom{
      color:#05111e;
      background:linear-gradient(135deg,var(--primary-2),#c4b5fd);
      box-shadow:0 18px 40px rgba(34,211,238,.22);
      padding:13px 20px;
    }
    .btn-primary-custom:hover{color:#05111e;transform:translateY(-3px);box-shadow:0 22px 50px rgba(34,211,238,.3)}
    .btn-ghost{
      color:var(--text);
      background:rgba(255,255,255,.06);
      border:1px solid var(--line);
      padding:12px 18px;
    }
    .btn-ghost:hover{color:#fff;background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.2);transform:translateY(-2px)}
    .btn-warm{
      color:#07111f;
      background:linear-gradient(135deg,#f59e0b,#fde68a);
      padding:12px 18px;
      box-shadow:0 18px 42px rgba(245,158,11,.2);
    }
    .btn-warm:hover{color:#07111f;transform:translateY(-2px);box-shadow:0 22px 50px rgba(245,158,11,.28)}

    .badge-soft{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border:1px solid rgba(34,211,238,.22);
      border-radius:999px;
      color:#c8f7ff;
      background:rgba(34,211,238,.09);
      font-size:.86rem;
      font-weight:850;
    }
    .badge-warm{
      border-color:rgba(245,158,11,.28);
      background:rgba(245,158,11,.1);
      color:#ffe8b4;
    }
    .section{
      padding:84px 0;
      position:relative;
      z-index:1;
    }
    .section-tight{padding:58px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:30px;
    }
    .section-kicker{
      color:var(--primary-2);
      font-weight:950;
      font-size:.88rem;
      letter-spacing:.08em;
      text-transform:uppercase;
      margin-bottom:8px;
    }
    .section-title{
      font-size:clamp(1.75rem,3vw,2.85rem);
      line-height:1.16;
      letter-spacing:-.05em;
      margin:0;
      font-weight:950;
    }
    .section-desc{
      max-width:570px;
      margin:10px 0 0;
      color:var(--muted);
      font-size:1.03rem;
    }

    .hero{
      padding:42px 0 70px;
    }
    .hero-bento{
      display:grid;
      grid-template-columns:1.38fr .72fr;
      grid-template-rows:auto auto;
      gap:18px;
    }
    .bento-main,
    .bento-card,
    .bento-strip{
      border:1px solid var(--line);
      background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.035));
      box-shadow:var(--shadow-soft);
      border-radius:var(--radius-xl);
      overflow:hidden;
      position:relative;
    }
    .bento-main{
      min-height:520px;
      padding:46px;
      grid-row:span 2;
    }
    .bento-main:before{
      content:"";
      position:absolute;
      width:330px;
      height:330px;
      right:-120px;
      top:-120px;
      background:radial-gradient(circle,rgba(34,211,238,.32),transparent 66%);
      pointer-events:none;
    }
    .bento-main:after{
      content:"";
      position:absolute;
      left:0;
      right:0;
      bottom:0;
      height:190px;
      background:linear-gradient(to top,rgba(124,58,237,.18),transparent);
      pointer-events:none;
    }
    .hero-content{position:relative;z-index:2}
    .hero h1{
      max-width:760px;
      margin:18px 0 18px;
      font-size:clamp(2.35rem,5vw,5rem);
      line-height:1.03;
      letter-spacing:-.075em;
      font-weight:950;
    }
    .hero-lead{
      max-width:710px;
      color:#c9d5e9;
      font-size:1.14rem;
      margin-bottom:24px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin:24px 0 28px;
    }
    .hero-points{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:32px;
      max-width:720px;
    }
    .point{
      padding:16px;
      border:1px solid rgba(255,255,255,.1);
      border-radius:18px;
      background:rgba(7,11,22,.42);
    }
    .point strong{
      display:block;
      font-size:1.35rem;
      line-height:1.1;
      color:#fff;
      font-weight:950;
    }
    .point span{
      display:block;
      margin-top:6px;
      color:var(--muted);
      font-size:.9rem;
    }
    .bento-card{
      padding:24px;
      min-height:205px;
    }
    .bento-card:hover,
    .matrix-card:hover,
    .hit-card:hover,
    .case-card:hover{
      transform:translateY(-5px);
      border-color:rgba(34,211,238,.28);
      box-shadow:0 24px 62px rgba(0,0,0,.28);
    }
    .bento-card h2{
      font-size:1.22rem;
      font-weight:950;
      letter-spacing:-.035em;
      margin:12px 0 8px;
    }
    .bento-card p{
      color:var(--muted);
      margin:0;
      font-size:.96rem;
    }
    .mini-icon{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      background:rgba(34,211,238,.11);
      border:1px solid rgba(34,211,238,.22);
      color:#bff6ff;
      font-weight:950;
    }
    .bento-strip{
      grid-column:1 / -1;
      display:grid;
      grid-template-columns:1fr auto;
      align-items:center;
      gap:16px;
      padding:18px 22px;
      background:
        linear-gradient(90deg,rgba(245,158,11,.16),rgba(34,211,238,.1)),
        rgba(255,255,255,.045);
    }
    .strip-text{
      display:flex;
      align-items:center;
      gap:14px;
      color:#dbeafe;
      font-weight:850;
    }
    .strip-dot{
      width:12px;
      height:12px;
      border-radius:50%;
      background:var(--success);
      box-shadow:0 0 0 8px rgba(52,211,153,.12);
      flex:0 0 auto;
    }

    .feature-ribbon{
      margin-top:-34px;
      position:relative;
      z-index:3;
    }
    .ribbon-inner{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:12px;
      padding:14px;
      border:1px solid var(--line);
      border-radius:24px;
      background:rgba(13,20,36,.86);
      backdrop-filter:blur(14px);
      box-shadow:var(--shadow-soft);
    }
    .ribbon-item{
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.045);
      color:var(--muted);
      font-weight:750;
    }
    .ribbon-item b{
      display:block;
      color:#fff;
      font-size:1rem;
      margin-bottom:3px;
    }

    .matrix-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr .9fr;
      gap:16px;
    }
    .matrix-card{
      min-height:220px;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      padding:24px;
      background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.03));
      transition:var(--ease);
      position:relative;
      overflow:hidden;
    }
    .matrix-card.large{
      grid-row:span 2;
      min-height:456px;
      background:
        radial-gradient(circle at 20% 18%,rgba(124,58,237,.25),transparent 30%),
        linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
    }
    .matrix-card h3{
      font-size:1.32rem;
      font-weight:950;
      letter-spacing:-.035em;
      margin:16px 0 10px;
    }
    .matrix-card p{color:var(--muted);margin:0}
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:20px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      padding:7px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.065);
      color:#d7e3f8;
      border:1px solid rgba(255,255,255,.08);
      font-size:.84rem;
      font-weight:800;
    }

    .entry-panel{
      display:grid;
      grid-template-columns:.95fr 1.05fr;
      gap:18px;
      align-items:stretch;
    }
    .entry-copy{
      border-radius:var(--radius-xl);
      padding:32px;
      border:1px solid rgba(245,158,11,.18);
      background:
        linear-gradient(135deg,rgba(245,158,11,.16),rgba(124,58,237,.08)),
        rgba(255,255,255,.04);
    }
    .entry-copy h2{
      font-size:clamp(1.75rem,3vw,2.75rem);
      line-height:1.16;
      letter-spacing:-.05em;
      margin:12px 0;
      font-weight:950;
    }
    .entry-copy p{color:#d3dbea;margin-bottom:22px}
    .entry-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:12px;
    }
    .entry-btn{
      display:flex;
      align-items:center;
      gap:12px;
      min-height:76px;
      padding:16px;
      border-radius:18px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.05);
      color:#fff;
      font-weight:900;
    }
    .entry-btn:hover{
      background:rgba(34,211,238,.11);
      border-color:rgba(34,211,238,.28);
      color:#fff;
      transform:translateY(-3px);
    }
    .entry-btn small{
      display:block;
      color:var(--muted);
      font-weight:700;
      margin-top:2px;
    }

    .stats-board{
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      overflow:hidden;
      background:rgba(255,255,255,.045);
      box-shadow:var(--shadow-soft);
    }
    .stats-row{
      display:grid;
      grid-template-columns:repeat(4,1fr);
    }
    .stat-cell{
      padding:26px;
      border-right:1px solid var(--line);
    }
    .stat-cell:last-child{border-right:0}
    .stat-cell strong{
      display:block;
      font-size:clamp(2rem,4vw,3.3rem);
      line-height:1;
      letter-spacing:-.06em;
      font-weight:950;
      color:#fff;
    }
    .stat-cell span{
      display:block;
      margin-top:10px;
      color:var(--muted);
      font-weight:750;
    }

    .hits-wrap{
      display:grid;
      grid-template-columns:.75fr 1.25fr;
      gap:18px;
    }
    .rank-panel{
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      padding:28px;
      background:linear-gradient(180deg,rgba(34,211,238,.1),rgba(255,255,255,.035));
    }
    .rank-panel p{color:var(--muted)}
    .hit-list{
      display:grid;
      gap:12px;
    }
    .hit-card{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:16px;
      align-items:center;
      padding:18px;
      border-radius:20px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.045);
      transition:var(--ease);
    }
    .hit-no{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#06111d;
      font-weight:950;
      background:linear-gradient(135deg,#fff,var(--primary-2));
    }
    .hit-card h3{
      margin:0 0 4px;
      font-size:1.05rem;
      font-weight:950;
    }
    .hit-card p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
    }
    .hit-action{
      padding:9px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.07);
      color:#dce8ff;
      font-weight:850;
      white-space:nowrap;
    }
    .hit-action:hover{background:var(--primary-2);color:#06111d}

    .case-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
    }
    .case-card{
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      padding:28px;
      background:rgba(255,255,255,.045);
      transition:var(--ease);
    }
    .case-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:18px;
    }
    .avatar{
      width:48px;
      height:48px;
      border-radius:18px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      color:#fff;
      font-weight:950;
    }
    .case-card h3{
      font-size:1.22rem;
      font-weight:950;
      margin:0 0 10px;
    }
    .case-card p{color:var(--muted);margin:0}
    .compare{
      margin-top:18px;
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:10px;
    }
    .compare div{
      padding:14px;
      border-radius:16px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.08);
    }
    .compare b{
      display:block;
      color:#fff;
      margin-bottom:4px;
    }
    .compare span{
      color:var(--muted);
      font-size:.9rem;
    }

    .news-layout{
      display:grid;
      grid-template-columns:1.35fr .65fr;
      gap:18px;
    }
    .news-list,
    .updates-panel{
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      background:rgba(255,255,255,.045);
      overflow:hidden;
    }
    .news-item{
      display:grid;
      grid-template-columns:120px 1fr auto;
      gap:16px;
      align-items:center;
      padding:18px 20px;
      border-bottom:1px solid var(--line);
    }
    .news-item:last-child{border-bottom:0}
    .news-date{
      color:var(--weak);
      font-weight:850;
      font-size:.88rem;
    }
    .news-item a{
      color:#fff;
      font-weight:900;
      line-height:1.35;
    }
    .news-item a:hover{color:var(--primary-2)}
    .news-summary{
      color:var(--muted);
      font-size:.92rem;
      margin-top:4px;
    }
    .news-chip{
      padding:7px 10px;
      border-radius:999px;
      background:rgba(34,211,238,.09);
      color:#c8f7ff;
      border:1px solid rgba(34,211,238,.18);
      font-size:.82rem;
      font-weight:850;
      white-space:nowrap;
    }
    .updates-panel{
      padding:22px;
    }
    .update-row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:14px 0;
      border-bottom:1px solid var(--line);
    }
    .update-row:last-child{border-bottom:0}
    .update-row span{color:var(--muted)}
    .update-row b{color:#fff}

    .faq-wrap{
      display:grid;
      grid-template-columns:.75fr 1.25fr;
      gap:20px;
      align-items:start;
    }
    .faq-note{
      position:sticky;
      top:96px;
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      padding:28px;
      background:linear-gradient(180deg,rgba(124,58,237,.12),rgba(255,255,255,.035));
    }
    .faq-note p{color:var(--muted)}
    .accordion{
      --bs-accordion-bg:transparent;
      --bs-accordion-border-color:var(--line);
      --bs-accordion-color:var(--text);
      --bs-accordion-btn-color:var(--text);
      --bs-accordion-active-color:#fff;
      --bs-accordion-active-bg:rgba(34,211,238,.09);
      --bs-accordion-btn-focus-box-shadow:none;
      display:grid;
      gap:12px;
    }
    .accordion-item{
      border:1px solid var(--line)!important;
      border-radius:20px!important;
      overflow:hidden;
      background:rgba(255,255,255,.045);
    }
    .accordion-button{
      padding:18px 20px;
      font-weight:950;
      letter-spacing:-.02em;
      background:transparent;
      color:#fff;
    }
    .accordion-button:after{filter:invert(1);opacity:.7}
    .accordion-button:not(.collapsed){box-shadow:none}
    .accordion-body{
      color:var(--muted);
      padding:0 20px 20px;
    }

    .cta-card{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:20px;
      align-items:center;
      padding:34px;
      border-radius:var(--radius-xl);
      border:1px solid rgba(34,211,238,.2);
      background:
        radial-gradient(circle at 80% 20%,rgba(34,211,238,.22),transparent 32%),
        linear-gradient(135deg,rgba(124,58,237,.18),rgba(245,158,11,.08)),
        rgba(255,255,255,.045);
      box-shadow:var(--shadow);
    }
    .cta-card h2{
      font-size:clamp(1.9rem,3.4vw,3.2rem);
      line-height:1.12;
      letter-spacing:-.06em;
      font-weight:950;
      margin:12px 0;
    }
    .cta-card p{color:#cbd7eb;margin:0}
    .subscribe-box{
      padding:20px;
      border:1px solid var(--line);
      border-radius:24px;
      background:rgba(7,11,22,.42);
    }
    .form-control{
      min-height:52px;
      border:1px solid rgba(255,255,255,.12);
      border-radius:16px;
      color:#fff;
      background:rgba(255,255,255,.06);
    }
    .form-control::placeholder{color:#7f8ba3}
    .form-hint{
      margin-top:10px;
      color:var(--muted);
      font-size:.9rem;
    }

    .site-footer{
      position:relative;
      z-index:1;
      padding:54px 0 26px;
      border-top:1px solid var(--line);
      background:rgba(5,8,15,.58);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:28px;
      padding-bottom:30px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
      font-weight:950;
      font-size:1.08rem;
    }
    .footer-text{
      color:var(--muted);
      max-width:520px;
      margin:0;
    }
    .footer-title{
      color:#fff;
      font-weight:950;
      margin-bottom:12px;
    }
    .footer-links{
      display:grid;
      gap:9px;
    }
    .footer-links a{
      color:var(--muted);
      font-weight:750;
    }
    .footer-links a:hover{color:var(--primary-2);padding-left:4px}
    .footer-bottom{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding-top:22px;
      border-top:1px solid var(--line);
      color:var(--weak);
      font-size:.92rem;
    }

    @media (max-width:1024px){
      .hero-bento,
      .entry-panel,
      .hits-wrap,
      .news-layout,
      .faq-wrap,
      .cta-card{
        grid-template-columns:1fr;
      }
      .bento-main{grid-row:auto;min-height:auto}
      .matrix-grid{grid-template-columns:1fr 1fr}
      .matrix-card.large{grid-row:auto;grid-column:1 / -1;min-height:300px}
      .stats-row{grid-template-columns:repeat(2,1fr)}
      .stat-cell:nth-child(2){border-right:0}
      .stat-cell:nth-child(1),
      .stat-cell:nth-child(2){border-bottom:1px solid var(--line)}
      .faq-note{position:static}
    }

    @media (max-width:768px){
      :root{--nav-h:68px}
      .container{padding-left:18px;padding-right:18px}
      .section{padding:64px 0}
      .hero{padding:28px 0 54px}
      .bento-main{padding:30px 24px;border-radius:24px}
      .bento-card,.bento-strip{border-radius:22px}
      .bento-strip{grid-template-columns:1fr}
      .hero-points,
      .ribbon-inner,
      .entry-grid,
      .case-grid,
      .footer-grid{
        grid-template-columns:1fr;
      }
      .section-head{
        display:block;
      }
      .section-desc{max-width:none}
      .navbar-collapse{
        padding:16px 0 6px;
      }
      .nav-wrap{
        align-items:flex-start!important;
      }
      .lang-pill{width:max-content}
      .nav-cta{width:100%;margin-top:4px}
      .news-item{
        grid-template-columns:1fr;
        gap:8px;
      }
      .news-chip{width:max-content}
      .footer-bottom{
        align-items:flex-start;
        flex-direction:column;
      }
    }

    @media (max-width:520px){
      body{line-height:1.66}
      .brand-text span{display:none}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .hero h1{font-size:2.28rem}
      .hero-lead{font-size:1rem}
      .hero-actions .btn{width:100%;justify-content:center}
      .hero-points{grid-template-columns:1fr}
      .matrix-grid{grid-template-columns:1fr}
      .stats-row{grid-template-columns:1fr}
      .stat-cell{
        border-right:0!important;
        border-bottom:1px solid var(--line);
      }
      .stat-cell:last-child{border-bottom:0}
      .hit-card{
        grid-template-columns:auto 1fr;
      }
      .hit-action{
        grid-column:1 / -1;
        text-align:center;
      }
      .compare{grid-template-columns:1fr}
      .cta-card{padding:24px}
      .subscribe-box .d-flex{flex-direction:column}
      .subscribe-box .btn{width:100%}
    }

/* 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}