/* roulang page: index */
:root{
      --bg:#07111F;
      --bg-2:#081827;
      --bg-3:#0B1F3A;
      --cyan:#28D7FF;
      --violet:#B85CFF;
      --magenta:#E45CFF;
      --gold:#D9B56D;
      --text:#F6FBFF;
      --muted:#B8C7D9;
      --weak:#7F92A8;
      --line:rgba(255,255,255,.12);
      --line-strong:rgba(40,215,255,.35);
      --glass:rgba(255,255,255,.065);
      --glass-2:rgba(255,255,255,.09);
      --shadow:0 22px 70px rgba(0,0,0,.38);
      --shadow-cyan:0 0 28px rgba(40,215,255,.28);
      --radius:26px;
      --radius-sm:16px;
      --ease:all .28s ease;
      --font:"Microsoft YaHei","PingFang SC","Noto Sans SC","HarmonyOS Sans SC",Arial,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--muted);
      line-height:1.75;
      background:
        radial-gradient(circle at 18% 8%, rgba(40,215,255,.18), transparent 30%),
        radial-gradient(circle at 88% 12%, rgba(184,92,255,.18), transparent 34%),
        radial-gradient(circle at 58% 74%, rgba(15,52,70,.55), transparent 38%),
        linear-gradient(145deg,#07111F 0%,#081827 44%,#0B1F3A 100%);
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      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:42px 42px;
      mask-image:linear-gradient(to bottom, rgba(0,0,0,.85), transparent 88%);
      z-index:-2;
    }
    body:after{
      content:"";
      position:fixed;
      inset:auto -12% -18% auto;
      width:520px;
      height:520px;
      border:1px solid rgba(217,181,109,.16);
      border-radius:50%;
      box-shadow:0 0 90px rgba(184,92,255,.12);
      pointer-events:none;
      z-index:-1;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    a:hover,a:focus{color:var(--cyan)}
    button,input{font-family:inherit}
    img{max-width:100%;display:block}
    .grid-container{max-width:1220px}
    .section{padding:104px 0;position:relative}
    .section-tight{padding:76px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:9px;
      padding:8px 14px;
      border:1px solid rgba(40,215,255,.22);
      border-radius:999px;
      color:#DDF8FF;
      background:rgba(40,215,255,.08);
      box-shadow:inset 0 0 24px rgba(40,215,255,.06);
      font-size:14px;
      font-weight:700;
      letter-spacing:.02em;
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:linear-gradient(135deg,var(--cyan),var(--violet));
      box-shadow:0 0 16px rgba(40,215,255,.72);
    }
    h1,h2,h3,h4{color:var(--text);font-weight:800;line-height:1.18;margin:0}
    h1{font-size:clamp(36px,5vw,62px);letter-spacing:-.04em}
    h2{font-size:clamp(28px,3.4vw,42px);letter-spacing:-.03em}
    h3{font-size:24px}
    p{margin:0}
    .gradient-text{
      background:linear-gradient(135deg,#F6FBFF 0%,#28D7FF 42%,#E45CFF 92%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .section-head{
      max-width:760px;
      margin-bottom:38px;
    }
    .section-head.center{
      text-align:center;
      margin-left:auto;
      margin-right:auto;
    }
    .section-head p{
      margin-top:16px;
      font-size:17px;
      color:var(--muted);
    }
    .btn-group{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      align-items:center;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:48px;
      padding:13px 22px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:800;
      font-size:16px;
      cursor:pointer;
      transition:var(--ease);
      position:relative;
      overflow:hidden;
    }
    .btn-primary{
      color:white;
      background:linear-gradient(135deg,var(--cyan),var(--violet));
      box-shadow:0 0 26px rgba(40,215,255,.3), 0 18px 36px rgba(0,0,0,.22);
    }
    .btn-primary:before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(120deg, transparent, rgba(255,255,255,.28), transparent);
      transform:translateX(-110%);
      transition:.55s ease;
    }
    .btn-primary:hover:before{transform:translateX(110%)}
    .btn-primary:hover{color:white;transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 36px rgba(184,92,255,.34),0 20px 42px rgba(0,0,0,.3)}
    .btn-secondary{
      color:#EAF8FF;
      background:rgba(255,255,255,.06);
      border-color:rgba(40,215,255,.24);
      backdrop-filter:blur(16px);
    }
    .btn-secondary:hover{color:white;background:rgba(40,215,255,.12);border-color:rgba(40,215,255,.48);transform:translateY(-2px)}
    .btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible{
      outline:3px solid rgba(40,215,255,.55);
      outline-offset:3px;
    }
    .site-header{
      position:fixed;
      top:0;
      left:0;
      right:0;
      z-index:50;
      padding:14px 0;
      background:rgba(7,17,31,.34);
      border-bottom:1px solid rgba(255,255,255,.1);
      backdrop-filter:blur(18px);
      transition:var(--ease);
    }
    .site-header.is-scrolled{
      background:rgba(7,17,31,.9);
      box-shadow:0 14px 38px rgba(0,0,0,.28);
    }
    .nav-wrap{
      min-height:58px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:260px;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      background:
        radial-gradient(circle at 34% 28%, rgba(255,255,255,.8), transparent 12%),
        linear-gradient(135deg,var(--cyan),var(--violet));
      box-shadow:0 0 28px rgba(40,215,255,.32);
      position:relative;
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      inset:10px;
      border:1px solid rgba(255,255,255,.55);
      border-radius:50%;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      color:var(--text);
      font-weight:900;
      font-size:15px;
      line-height:1.25;
      letter-spacing:-.02em;
    }
    .brand-text small{
      color:var(--weak);
      font-size:12px;
      font-weight:600;
      letter-spacing:.04em;
    }
    .desktop-nav{
      display:flex;
      justify-content:center;
      align-items:center;
      gap:8px;
      flex:1;
    }
    .desktop-nav a{
      padding:10px 16px;
      border-radius:999px;
      color:#DDEBFA;
      font-size:15px;
      font-weight:700;
      position:relative;
    }
    .desktop-nav a:after{
      content:"";
      position:absolute;
      left:18px;
      right:18px;
      bottom:5px;
      height:2px;
      border-radius:999px;
      background:linear-gradient(90deg,var(--cyan),var(--violet));
      opacity:0;
      transform:scaleX(.3);
      transition:var(--ease);
    }
    .desktop-nav a:hover,.desktop-nav a.active{color:#fff;background:rgba(255,255,255,.06)}
    .desktop-nav a:hover:after,.desktop-nav a.active:after{opacity:1;transform:scaleX(1)}
    .nav-actions{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:246px;
      justify-content:flex-end;
    }
    .search-pill{
      display:flex;
      align-items:center;
      gap:8px;
      height:40px;
      min-width:128px;
      padding:0 12px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.055);
      color:var(--weak);
      font-size:13px;
    }
    .search-pill span:first-child{color:var(--cyan)}
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border:1px solid rgba(255,255,255,.14);
      border-radius:14px;
      background:rgba(255,255,255,.06);
      color:white;
      font-size:22px;
      cursor:pointer;
    }
    .mobile-panel{
      display:none;
      margin-top:12px;
      padding:14px;
      border:1px solid var(--line);
      border-radius:20px;
      background:rgba(7,17,31,.92);
      backdrop-filter:blur(18px);
      box-shadow:var(--shadow);
    }
    .mobile-panel a{
      display:flex;
      min-height:46px;
      align-items:center;
      padding:10px 14px;
      border-radius:14px;
      color:#EAF5FF;
      font-weight:700;
    }
    .mobile-panel a.active,.mobile-panel a:hover{background:rgba(40,215,255,.1);color:white}
    .hero{
      min-height:780px;
      padding:154px 0 92px;
      position:relative;
      overflow:hidden;
    }
    .hero:before,.hero:after{
      content:"";
      position:absolute;
      border-radius:50%;
      filter:blur(18px);
      pointer-events:none;
    }
    .hero:before{
      width:360px;height:360px;
      right:8%;top:138px;
      background:radial-gradient(circle, rgba(184,92,255,.28), transparent 68%);
    }
    .hero:after{
      width:420px;height:420px;
      left:-120px;bottom:40px;
      background:radial-gradient(circle, rgba(40,215,255,.2), transparent 68%);
    }
    .hero-copy{
      position:relative;
      z-index:2;
      padding-top:28px;
    }
    .hero-copy h1{margin-top:20px;margin-bottom:20px}
    .hero-copy .subtitle{
      max-width:650px;
      font-size:18px;
      color:#C5D5E6;
      margin-bottom:28px;
    }
    .trust-row{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:30px;
      max-width:640px;
    }
    .trust-item{
      padding:16px 18px;
      border:1px solid var(--line);
      border-radius:18px;
      background:rgba(255,255,255,.055);
      backdrop-filter:blur(14px);
    }
    .trust-item strong{
      display:block;
      color:var(--text);
      font-size:22px;
      line-height:1.1;
    }
    .trust-item span{font-size:13px;color:var(--weak)}
    .visual-lab{
      position:relative;
      min-height:535px;
      z-index:2;
    }
    .lab-orbit{
      position:absolute;
      inset:18px 0 auto auto;
      width:420px;
      height:420px;
      border-radius:50%;
      border:1px solid rgba(217,181,109,.18);
      background:
        radial-gradient(circle at center, rgba(40,215,255,.1), transparent 34%),
        conic-gradient(from 130deg, transparent, rgba(40,215,255,.28), transparent, rgba(184,92,255,.24), transparent);
      opacity:.78;
      animation:slowSpin 18s linear infinite;
    }
    @keyframes slowSpin{to{transform:rotate(360deg)}}
    .preview-card{
      position:absolute;
      top:52px;
      right:28px;
      width:min(440px,100%);
      padding:28px;
      border:1px solid var(--line);
      border-radius:32px;
      background:linear-gradient(145deg,rgba(255,255,255,.1),rgba(255,255,255,.045));
      backdrop-filter:blur(22px);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .preview-card:before{
      content:"";
      position:absolute;
      inset:-30% -20% auto auto;
      width:260px;height:260px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(228,92,255,.24), transparent 68%);
    }
    .abstract-cover{
      height:245px;
      border-radius:24px;
      overflow:hidden;
      position:relative;
      border:1px solid rgba(255,255,255,.12);
      background:
        linear-gradient(135deg,rgba(40,215,255,.2),rgba(184,92,255,.18)),
        radial-gradient(circle at 22% 25%, rgba(255,255,255,.46), transparent 8%),
        radial-gradient(circle at 72% 42%, rgba(40,215,255,.28), transparent 18%),
        linear-gradient(160deg,#0B1F3A,#160D2C 60%,#0F3446);
    }
    .abstract-cover:before{
      content:"";
      position:absolute;
      inset:34px 52px;
      border-radius:48% 52% 44% 56%;
      background:linear-gradient(180deg, rgba(246,251,255,.26), rgba(246,251,255,.04));
      box-shadow:0 0 48px rgba(40,215,255,.18);
      clip-path:polygon(50% 0,78% 24%,78% 60%,100% 100%,0 100%,22% 60%,22% 24%);
    }
    .abstract-cover:after{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(120deg, transparent 0 42%, rgba(217,181,109,.22) 43%, transparent 44% 100%),
        repeating-linear-gradient(90deg, transparent 0 22px, rgba(255,255,255,.05) 23px 24px);
      mix-blend-mode:screen;
      opacity:.65;
    }
    .preview-meta{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-top:18px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      padding:7px 11px;
      border-radius:999px;
      background:rgba(40,215,255,.09);
      border:1px solid rgba(40,215,255,.2);
      color:#DDF8FF;
      font-size:13px;
      font-weight:700;
      white-space:nowrap;
    }
    .rating{
      color:#F7E1A8;
      letter-spacing:2px;
      font-size:14px;
    }
    .floating-note,.floating-score{
      position:absolute;
      border:1px solid var(--line);
      border-radius:22px;
      background:rgba(7,17,31,.68);
      backdrop-filter:blur(18px);
      box-shadow:var(--shadow);
    }
    .floating-note{
      left:0;
      bottom:90px;
      width:230px;
      padding:18px;
    }
    .floating-note strong{display:block;color:var(--text);font-size:18px}
    .floating-note span{color:var(--weak);font-size:13px}
    .wave{
      display:flex;
      gap:5px;
      align-items:end;
      height:38px;
      margin-top:14px;
    }
    .wave i{
      display:block;
      flex:1;
      border-radius:999px;
      background:linear-gradient(to top,var(--cyan),var(--violet));
      opacity:.8;
    }
    .wave i:nth-child(1){height:30%}.wave i:nth-child(2){height:70%}.wave i:nth-child(3){height:45%}.wave i:nth-child(4){height:90%}.wave i:nth-child(5){height:55%}.wave i:nth-child(6){height:78%}
    .floating-score{
      right:0;
      bottom:8px;
      width:260px;
      padding:18px;
    }
    .score-line{
      display:flex;
      justify-content:space-between;
      gap:16px;
      margin-bottom:10px;
      color:#EAF8FF;
      font-weight:700;
      font-size:14px;
    }
    .bar{
      height:9px;
      border-radius:999px;
      overflow:hidden;
      background:rgba(255,255,255,.08);
    }
    .bar span{
      display:block;
      height:100%;
      width:78%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--cyan),var(--violet));
      box-shadow:0 0 18px rgba(40,215,255,.3);
    }
    .glass-card{
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:linear-gradient(145deg,var(--glass-2),rgba(255,255,255,.04));
      backdrop-filter:blur(18px);
      box-shadow:var(--shadow);
      transition:var(--ease);
    }
    .glass-card:hover{
      transform:translateY(-4px);
      border-color:var(--line-strong);
      box-shadow:var(--shadow),0 0 32px rgba(40,215,255,.12);
    }
    .diagnosis{
      position:relative;
    }
    .diagnosis:before{
      content:"";
      position:absolute;
      left:4%;
      right:4%;
      top:50%;
      height:1px;
      background:linear-gradient(90deg,transparent,rgba(40,215,255,.34),rgba(184,92,255,.28),transparent);
      opacity:.75;
    }
    .pain-card{
      padding:28px;
      min-height:230px;
      position:relative;
      overflow:hidden;
    }
    .pain-card .num{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:46px;
      height:32px;
      border-radius:999px;
      color:var(--cyan);
      background:rgba(40,215,255,.09);
      border:1px solid rgba(40,215,255,.24);
      font-weight:900;
      margin-bottom:28px;
    }
    .pain-card h3{font-size:22px;margin-bottom:12px}
    .pain-card p{color:var(--muted);font-size:15px}
    .solution-card{
      padding:34px;
    }
    .solution-list{
      display:grid;
      gap:16px;
      margin-top:26px;
    }
    .solution-item{
      display:flex;
      gap:14px;
      align-items:flex-start;
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.09);
    }
    .solution-item b{
      display:flex;
      align-items:center;
      justify-content:center;
      width:34px;height:34px;
      flex:0 0 34px;
      border-radius:12px;
      color:white;
      background:linear-gradient(135deg,var(--cyan),var(--violet));
      box-shadow:0 0 18px rgba(40,215,255,.22);
    }
    .solution-item strong{display:block;color:var(--text);font-size:17px;margin-bottom:2px}
    .solution-item span{font-size:14px;color:var(--weak)}
    .path-panel{
      padding:34px;
      position:relative;
      overflow:hidden;
    }
    .path-panel:before{
      content:"";
      position:absolute;
      top:40px;
      bottom:40px;
      left:58px;
      width:2px;
      background:linear-gradient(to bottom,var(--cyan),var(--violet),transparent);
      opacity:.6;
    }
    .step{
      position:relative;
      display:flex;
      gap:20px;
      align-items:flex-start;
      padding:0 0 28px;
    }
    .step:last-child{padding-bottom:0}
    .node{
      width:50px;height:50px;
      flex:0 0 50px;
      border-radius:50%;
      display:flex;
      align-items:center;
      justify-content:center;
      color:white;
      font-weight:900;
      background:rgba(7,17,31,.9);
      border:1px solid rgba(40,215,255,.45);
      box-shadow:0 0 22px rgba(40,215,255,.25);
      z-index:1;
    }
    .step h3{font-size:20px;margin-bottom:5px}
    .step p{font-size:14px;color:var(--weak)}
    .metric-card{
      padding:28px;
      overflow:hidden;
      position:relative;
    }
    .metric-card:after{
      content:"";
      position:absolute;
      right:-32px;
      top:-32px;
      width:120px;height:120px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(40,215,255,.18),transparent 65%);
    }
    .metric-number{
      display:block;
      margin-bottom:8px;
      font-size:42px;
      line-height:1;
      font-weight:900;
      color:var(--cyan);
      text-shadow:0 0 26px rgba(40,215,255,.3);
    }
    .metric-card strong{display:block;color:var(--text);font-size:18px;margin-bottom:8px}
    .metric-card p{font-size:14px;color:var(--weak)}
    .case-strip{
      margin-top:28px;
      padding:26px;
      border-radius:28px;
      border:1px solid rgba(217,181,109,.16);
      background:
        linear-gradient(135deg,rgba(217,181,109,.09),transparent),
        rgba(255,255,255,.045);
    }
    .case-strip .cover-row{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:14px;
      margin-top:18px;
    }
    .mini-cover{
      min-height:126px;
      border-radius:20px;
      border:1px solid rgba(255,255,255,.1);
      background:
        radial-gradient(circle at 18% 22%,rgba(246,251,255,.34),transparent 9%),
        radial-gradient(circle at 80% 20%,rgba(228,92,255,.22),transparent 22%),
        linear-gradient(145deg,#0F3446,#0B1F3A 48%,#1C1236);
      position:relative;
      overflow:hidden;
    }
    .mini-cover:after{
      content:"";
      position:absolute;
      inset:0;
      background:repeating-linear-gradient(135deg, transparent 0 18px, rgba(217,181,109,.08) 19px 20px);
    }
    .testimonial{
      padding:28px;
      height:100%;
    }
    .avatar{
      width:48px;height:48px;
      border-radius:50%;
      background:linear-gradient(135deg,var(--cyan),var(--violet));
      box-shadow:0 0 22px rgba(184,92,255,.24);
      margin-bottom:16px;
      position:relative;
    }
    .avatar:after{
      content:"";
      position:absolute;
      inset:12px;
      border-radius:50%;
      background:rgba(255,255,255,.5);
    }
    .quote{
      color:#EAF8FF;
      font-size:16px;
      margin:12px 0 18px;
    }
    .role{font-size:14px;color:var(--weak)}
    .category-entry{
      padding:34px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
      overflow:hidden;
      position:relative;
    }
    .category-entry:before{
      content:"";
      position:absolute;
      inset:0 0 0 auto;
      width:40%;
      background:radial-gradient(circle at center,rgba(184,92,255,.16),transparent 66%);
      pointer-events:none;
    }
    .category-entry h3{font-size:28px;margin-bottom:10px}
    .category-entry p{max-width:670px}
    .accordion.custom-accordion{
      margin:0;
      background:transparent;
    }
    .custom-accordion .accordion-item{
      margin-bottom:14px;
      border:1px solid var(--line);
      border-radius:20px;
      overflow:hidden;
      background:rgba(255,255,255,.055);
      backdrop-filter:blur(16px);
      transition:var(--ease);
    }
    .custom-accordion .accordion-item.is-active{
      border-color:rgba(40,215,255,.38);
      box-shadow:0 0 26px rgba(40,215,255,.1);
    }
    .custom-accordion .accordion-title{
      border:0;
      color:var(--text);
      font-size:17px;
      font-weight:800;
      padding:20px 54px 20px 22px;
      background:transparent;
    }
    .custom-accordion .accordion-title:hover,.custom-accordion .accordion-title:focus{
      background:rgba(40,215,255,.06);
      color:white;
    }
    .custom-accordion .accordion-title:before{
      right:22px;
      color:var(--cyan);
      font-size:24px;
      margin-top:-14px;
    }
    .custom-accordion .accordion-content{
      border:0;
      background:rgba(0,0,0,.08);
      color:var(--muted);
      padding:0 22px 22px;
      line-height:1.8;
    }
    .cta-panel{
      padding:48px;
      border-radius:34px;
      background:
        radial-gradient(circle at 18% 24%,rgba(40,215,255,.22),transparent 34%),
        radial-gradient(circle at 82% 20%,rgba(228,92,255,.2),transparent 34%),
        linear-gradient(135deg,rgba(255,255,255,.08),rgba(255,255,255,.04));
      border:1px solid rgba(255,255,255,.14);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .cta-panel:after{
      content:"";
      position:absolute;
      right:-70px;
      bottom:-120px;
      width:340px;height:340px;
      border-radius:50%;
      border:1px solid rgba(217,181,109,.18);
    }
    .cta-panel h2{max-width:820px;margin-bottom:16px}
    .cta-panel p{max-width:720px;margin-bottom:26px;color:#C9D8E9}
    .site-footer{
      position:relative;
      padding:70px 0 30px;
      background:linear-gradient(180deg,rgba(5,12,23,.36),rgba(3,8,16,.88));
      border-top:1px solid rgba(255,255,255,.1);
      overflow:hidden;
    }
    .site-footer:before{
      content:"";
      position:absolute;
      left:12%;
      top:-120px;
      width:260px;height:260px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(40,215,255,.12),transparent 68%);
    }
    .footer-brand p{
      margin-top:16px;
      max-width:420px;
      color:var(--weak);
    }
    .footer-title{
      color:var(--text);
      font-weight:900;
      margin-bottom:16px;
      font-size:16px;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a,.footer-links span{
      color:var(--weak);
      font-size:14px;
    }
    .footer-links a:hover{color:var(--cyan)}
    .copyright{
      margin-top:42px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.09);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      color:#6F8298;
      font-size:13px;
      flex-wrap:wrap;
    }
    @media (max-width:1024px){
      .brand{min-width:auto}
      .brand-text{font-size:13px}
      .desktop-nav a{padding:9px 12px}
      .nav-actions{min-width:auto}
      .search-pill{display:none}
      .hero{padding-top:136px}
      .visual-lab{min-height:500px;margin-top:34px}
      .preview-card{right:50%;transform:translateX(50%)}
      .floating-note{left:6%}
      .floating-score{right:6%}
      .diagnosis:before{display:none}
      .section{padding:82px 0}
    }
    @media (max-width:768px){
      .desktop-nav,.nav-actions .btn{display:none}
      .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
      .mobile-panel.open{display:block}
      .nav-wrap{min-height:52px}
      .site-header{padding:10px 0}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .hero{min-height:auto;padding:122px 0 72px}
      .hero-copy{padding-top:0}
      .trust-row{grid-template-columns:1fr;gap:10px}
      .visual-lab{min-height:520px}
      .preview-card{width:92%;top:36px;padding:20px}
      .abstract-cover{height:215px}
      .floating-note{width:210px;left:0;bottom:108px}
      .floating-score{width:230px;right:0}
      .category-entry{display:block}
      .category-entry .btn{margin-top:22px}
      .case-strip .cover-row{grid-template-columns:1fr}
      .cta-panel{padding:32px 24px;border-radius:26px}
      .section{padding:68px 0}
      .section-tight{padding:56px 0}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }
    @media (max-width:520px){
      .brand-text small{display:none}
      .brand{gap:9px}
      .brand-text{max-width:230px}
      .btn-group{display:grid;grid-template-columns:1fr;width:100%}
      .btn{width:100%}
      h1{font-size:36px}
      .hero-copy .subtitle{font-size:16px}
      .visual-lab{min-height:500px}
      .lab-orbit{width:330px;height:330px;right:-30px}
      .floating-note{position:relative;left:auto;bottom:auto;width:100%;margin-top:330px}
      .floating-score{position:relative;right:auto;bottom:auto;width:100%;margin-top:14px}
      .preview-card{width:100%;right:auto;left:0;transform:none}
      .pain-card,.solution-card,.path-panel,.testimonial,.metric-card{padding:22px}
      .path-panel:before{left:46px}
      .node{width:42px;height:42px;flex-basis:42px}
      .step{gap:14px}
      .category-entry h3{font-size:24px}
      .footer-brand .brand{align-items:flex-start}
    }

/* roulang page: category1 */
:root{
      --bg:#07111F;
      --bg-2:#081827;
      --bg-3:#0B1F3A;
      --cyan:#28D7FF;
      --purple:#B85CFF;
      --pink:#E45CFF;
      --gold:#D9B56D;
      --text:#F6FBFF;
      --muted:#B8C7D9;
      --weak:#7F92A8;
      --line:rgba(255,255,255,.12);
      --line-strong:rgba(40,215,255,.35);
      --glass:rgba(255,255,255,.07);
      --glass-2:rgba(255,255,255,.1);
      --shadow:0 22px 70px rgba(0,0,0,.38);
      --radius:26px;
      --radius-sm:16px;
      --ease:all .28s ease;
      --font:"Microsoft YaHei","PingFang SC","Noto Sans SC","HarmonyOS Sans SC",Arial,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      line-height:1.75;
      background:
        radial-gradient(circle at 12% 8%, rgba(40,215,255,.22), transparent 28%),
        radial-gradient(circle at 86% 16%, rgba(184,92,255,.22), transparent 30%),
        radial-gradient(circle at 50% 92%, rgba(15,52,70,.85), transparent 42%),
        linear-gradient(180deg,#07111F 0%,#081827 48%,#050B14 100%);
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.32;
      background-image:
        linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
      background-size:44px 44px;
      mask-image:linear-gradient(to bottom, black 0%, transparent 86%);
      z-index:-2;
    }
    body:after{
      content:"";
      position:fixed;
      width:520px;
      height:520px;
      right:-230px;
      top:36%;
      pointer-events:none;
      border:1px solid rgba(217,181,109,.18);
      border-radius:50%;
      box-shadow:0 0 120px rgba(184,92,255,.12);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input{font-family:inherit}
    ::selection{background:rgba(40,215,255,.28);color:#fff}
    .grid-container{max-width:1220px}
    .site-header{
      position:fixed;
      top:0;
      left:0;
      width:100%;
      z-index:1000;
      padding:14px 0;
      background:rgba(7,17,31,.36);
      border-bottom:1px solid rgba(255,255,255,.1);
      backdrop-filter:blur(18px);
      transition:var(--ease);
    }
    .site-header.is-scrolled{
      background:rgba(7,17,31,.9);
      box-shadow:0 18px 46px rgba(0,0,0,.36);
    }
    .nav-wrap{
      min-height:58px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:238px;
    }
    .brand-mark{
      width:42px;
      height:42px;
      flex:0 0 42px;
      border-radius:15px;
      background:
        radial-gradient(circle at 35% 30%, #fff 0 3px, transparent 4px),
        conic-gradient(from 160deg, var(--cyan), var(--purple), #0F3446, var(--cyan));
      box-shadow:0 0 26px rgba(40,215,255,.34);
      position:relative;
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      inset:9px;
      border:1px solid rgba(255,255,255,.72);
      border-radius:50%;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      font-size:17px;
      font-weight:800;
      line-height:1.15;
      letter-spacing:.02em;
      color:#fff;
    }
    .brand-text small{
      margin-top:4px;
      font-size:12px;
      font-weight:500;
      color:var(--weak);
      letter-spacing:.08em;
    }
    .desktop-nav{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      flex:1;
    }
    .desktop-nav a{
      position:relative;
      padding:12px 16px;
      color:var(--muted);
      font-size:15px;
      font-weight:700;
      border-radius:999px;
    }
    .desktop-nav a:hover,
    .desktop-nav a.active{
      color:#fff;
      background:rgba(255,255,255,.07);
    }
    .desktop-nav a:after{
      content:"";
      position:absolute;
      left:18px;
      right:18px;
      bottom:6px;
      height:2px;
      opacity:0;
      transform:scaleX(.3);
      background:linear-gradient(90deg,var(--cyan),var(--purple));
      border-radius:999px;
      transition:var(--ease);
    }
    .desktop-nav a:hover:after,
    .desktop-nav a.active:after{
      opacity:1;
      transform:scaleX(1);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .search-pill{
      height:42px;
      display:flex;
      align-items:center;
      gap:8px;
      padding:0 14px;
      color:var(--muted);
      background:rgba(255,255,255,.06);
      border:1px solid var(--line);
      border-radius:999px;
      font-size:14px;
      white-space:nowrap;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:12px 22px;
      border-radius:999px;
      border:1px solid transparent;
      font-size:16px;
      font-weight:800;
      cursor:pointer;
      transition:var(--ease);
      line-height:1.2;
      text-align:center;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--cyan),var(--purple));
      box-shadow:0 0 26px rgba(40,215,255,.33), inset 0 1px 0 rgba(255,255,255,.25);
    }
    .btn-primary:hover{
      color:#fff;
      transform:translateY(-2px);
      filter:brightness(1.08);
      box-shadow:0 0 38px rgba(184,92,255,.36);
    }
    .btn-secondary{
      color:#EAF8FF;
      border-color:rgba(40,215,255,.32);
      background:rgba(255,255,255,.065);
      backdrop-filter:blur(14px);
    }
    .btn-secondary:hover{
      color:#fff;
      background:rgba(40,215,255,.12);
      transform:translateY(-2px);
      border-color:rgba(40,215,255,.55);
    }
    .btn:focus-visible,
    .desktop-nav a:focus-visible,
    .mobile-panel a:focus-visible,
    .brand:focus-visible,
    summary:focus-visible{
      outline:3px solid rgba(40,215,255,.5);
      outline-offset:4px;
    }
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      border:1px solid var(--line);
      color:#fff;
      background:rgba(255,255,255,.07);
      font-size:22px;
      cursor:pointer;
    }
    .mobile-panel{
      display:none;
      margin-top:12px;
      padding:12px;
      border:1px solid var(--line);
      border-radius:20px;
      background:rgba(7,17,31,.92);
      box-shadow:var(--shadow);
    }
    .mobile-panel a{
      display:flex;
      min-height:46px;
      align-items:center;
      padding:10px 12px;
      color:var(--muted);
      border-radius:14px;
      font-weight:700;
    }
    .mobile-panel a.active,
    .mobile-panel a:hover{
      color:#fff;
      background:rgba(255,255,255,.08);
    }

    .page-hero{
      position:relative;
      padding:158px 0 82px;
      overflow:hidden;
    }
    .page-hero:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 28% 24%, rgba(40,215,255,.18), transparent 28%),
        radial-gradient(circle at 82% 34%, rgba(228,92,255,.18), transparent 26%);
      pointer-events:none;
    }
    .hero-card{
      position:relative;
      padding:38px;
      border:1px solid var(--line);
      border-radius:32px;
      background:linear-gradient(135deg, rgba(255,255,255,.095), rgba(255,255,255,.045));
      backdrop-filter:blur(22px);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .hero-card:after{
      content:"";
      position:absolute;
      right:-70px;
      bottom:-70px;
      width:230px;
      height:230px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(40,215,255,.22), transparent 68%);
    }
    .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:9px;
      margin-bottom:20px;
      color:var(--weak);
      font-size:14px;
      font-weight:700;
    }
    .breadcrumb a{color:var(--muted)}
    .breadcrumb a:hover{color:var(--cyan)}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:9px;
      padding:8px 13px;
      border:1px solid rgba(40,215,255,.24);
      border-radius:999px;
      color:#DDF8FF;
      background:rgba(40,215,255,.09);
      font-weight:800;
      font-size:14px;
      margin-bottom:18px;
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 18px var(--cyan);
    }
    h1,h2,h3,p{margin-top:0}
    h1{
      max-width:840px;
      margin-bottom:18px;
      font-size:56px;
      line-height:1.12;
      font-weight:850;
      letter-spacing:-.04em;
    }
    .gradient-text{
      color:transparent;
      background:linear-gradient(120deg,#fff 0%,var(--cyan) 42%,var(--purple) 90%);
      -webkit-background-clip:text;
      background-clip:text;
    }
    .hero-desc{
      max-width:780px;
      margin-bottom:28px;
      color:var(--muted);
      font-size:18px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-bottom:30px;
    }
    .hero-meta{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:14px;
      max-width:820px;
    }
    .meta-ticket{
      position:relative;
      padding:16px 18px;
      border:1px solid var(--line);
      border-radius:18px;
      background:rgba(8,24,39,.58);
      overflow:hidden;
    }
    .meta-ticket:before,
    .meta-ticket:after{
      content:"";
      position:absolute;
      top:50%;
      width:18px;
      height:18px;
      border-radius:50%;
      background:#07111F;
      transform:translateY(-50%);
      border:1px solid rgba(255,255,255,.08);
    }
    .meta-ticket:before{left:-9px}
    .meta-ticket:after{right:-9px}
    .meta-ticket strong{
      display:block;
      color:#fff;
      font-size:18px;
      line-height:1.25;
    }
    .meta-ticket span{
      color:var(--weak);
      font-size:13px;
    }
    .visual-stage{
      min-height:360px;
      position:relative;
      border:1px solid var(--line);
      border-radius:32px;
      background:
        linear-gradient(135deg,rgba(40,215,255,.13),transparent 36%),
        linear-gradient(315deg,rgba(184,92,255,.16),transparent 42%),
        rgba(255,255,255,.055);
      box-shadow:var(--shadow);
      backdrop-filter:blur(20px);
      overflow:hidden;
    }
    .visual-stage:before{
      content:"";
      position:absolute;
      inset:26px;
      border:1px solid rgba(217,181,109,.18);
      border-radius:50%;
      transform:rotate(-18deg) scale(1.08);
    }
    .poster{
      position:absolute;
      left:36px;
      right:36px;
      top:48px;
      height:172px;
      border-radius:24px;
      border:1px solid rgba(255,255,255,.14);
      background:
        radial-gradient(circle at 30% 40%,rgba(255,255,255,.25),transparent 13%),
        linear-gradient(135deg,rgba(40,215,255,.33),rgba(184,92,255,.22) 46%,rgba(7,17,31,.65)),
        repeating-linear-gradient(45deg,rgba(217,181,109,.12) 0 1px,transparent 1px 14px);
      box-shadow:0 24px 60px rgba(0,0,0,.32);
    }
    .floating-note{
      position:absolute;
      padding:14px 16px;
      border:1px solid rgba(255,255,255,.14);
      border-radius:18px;
      background:rgba(7,17,31,.72);
      backdrop-filter:blur(16px);
      color:#fff;
      box-shadow:0 16px 42px rgba(0,0,0,.28);
    }
    .floating-note.one{left:24px;bottom:42px}
    .floating-note.two{right:22px;bottom:94px}
    .floating-note small{
      display:block;
      color:var(--weak);
      font-size:12px;
    }
    .floating-note b{
      font-size:18px;
      color:var(--cyan);
    }

    .section{
      padding:86px 0;
      position:relative;
    }
    .section-head{
      margin-bottom:34px;
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
    }
    .section-kicker{
      color:var(--cyan);
      font-size:14px;
      font-weight:850;
      letter-spacing:.08em;
      margin-bottom:8px;
    }
    h2{
      margin-bottom:10px;
      font-size:38px;
      line-height:1.22;
      font-weight:850;
      letter-spacing:-.03em;
    }
    .section-head p{
      max-width:640px;
      color:var(--muted);
      margin-bottom:0;
    }
    .filter-bar{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      padding:14px;
      margin-top:28px;
      border:1px solid var(--line);
      border-radius:24px;
      background:rgba(255,255,255,.055);
      backdrop-filter:blur(18px);
    }
    .filter-tag{
      display:inline-flex;
      align-items:center;
      min-height:40px;
      padding:8px 16px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.12);
      color:var(--muted);
      background:rgba(7,17,31,.42);
      font-weight:750;
      font-size:14px;
    }
    .filter-tag.active{
      color:#fff;
      border-color:transparent;
      background:linear-gradient(135deg,var(--purple),var(--cyan));
      box-shadow:0 0 24px rgba(40,215,255,.22);
    }
    .feature-card,
    .compact-card,
    .scenario-card,
    .process-panel,
    .faq-item,
    .cta-panel{
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:linear-gradient(135deg,rgba(255,255,255,.085),rgba(255,255,255,.045));
      backdrop-filter:blur(18px);
      box-shadow:var(--shadow);
      transition:var(--ease);
    }
    .feature-card:hover,
    .compact-card:hover,
    .scenario-card:hover{
      transform:translateY(-4px);
      border-color:var(--line-strong);
      box-shadow:0 24px 70px rgba(40,215,255,.12), var(--shadow);
    }
    .feature-card{
      height:100%;
      overflow:hidden;
    }
    .cover{
      height:245px;
      position:relative;
      overflow:hidden;
      background:
        radial-gradient(circle at 25% 28%,rgba(244,250,255,.3),transparent 12%),
        radial-gradient(circle at 72% 42%,rgba(228,92,255,.32),transparent 22%),
        linear-gradient(135deg,rgba(40,215,255,.28),rgba(8,24,39,.86)),
        repeating-linear-gradient(135deg,rgba(217,181,109,.13) 0 1px,transparent 1px 18px);
    }
    .cover:after{
      content:"";
      position:absolute;
      inset:-60px;
      background:linear-gradient(100deg,transparent 20%,rgba(255,255,255,.18) 48%,transparent 72%);
      transform:translateX(-45%);
      transition:var(--ease);
    }
    .feature-card:hover .cover:after{transform:translateX(45%)}
    .cover-label{
      position:absolute;
      left:22px;
      top:22px;
      z-index:2;
      padding:7px 12px;
      border-radius:999px;
      background:rgba(7,17,31,.72);
      border:1px solid rgba(255,255,255,.14);
      color:#fff;
      font-size:13px;
      font-weight:850;
    }
    .feature-body{
      padding:28px;
    }
    .feature-body h3,
    .compact-card h3,
    .scenario-card h3{
      margin-bottom:12px;
      font-size:24px;
      line-height:1.28;
      font-weight:850;
    }
    .feature-body p,
    .compact-card p,
    .scenario-card p{
      color:var(--muted);
      margin-bottom:18px;
    }
    .card-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:18px;
      color:var(--weak);
      font-size:13px;
      font-weight:700;
    }
    .card-meta span{
      padding:5px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.09);
    }
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:#EAF8FF;
      font-weight:850;
    }
    .text-link:hover{color:var(--cyan);gap:10px}
    .compact-list{
      display:grid;
      gap:18px;
    }
    .compact-card{
      padding:22px;
      display:grid;
      grid-template-columns:92px 1fr;
      gap:18px;
      align-items:center;
    }
    .mini-cover{
      width:92px;
      height:92px;
      border-radius:20px;
      border:1px solid rgba(255,255,255,.13);
      background:
        radial-gradient(circle at 70% 30%,rgba(40,215,255,.42),transparent 25%),
        linear-gradient(135deg,rgba(184,92,255,.28),rgba(7,17,31,.92)),
        repeating-linear-gradient(45deg,rgba(255,255,255,.08) 0 1px,transparent 1px 10px);
    }
    .compact-card h3{font-size:20px;margin-bottom:8px}
    .compact-card p{margin-bottom:10px;font-size:15px}
    .intro-panel{
      padding:34px;
      border:1px solid rgba(217,181,109,.18);
      border-radius:30px;
      background:
        linear-gradient(135deg,rgba(217,181,109,.08),transparent 36%),
        rgba(255,255,255,.055);
      backdrop-filter:blur(18px);
    }
    .intro-panel p{
      color:var(--muted);
      font-size:17px;
      margin-bottom:0;
    }
    .scenario-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:18px;
      margin-top:24px;
    }
    .scenario-card{
      padding:24px;
      box-shadow:none;
    }
    .scenario-icon{
      width:46px;
      height:46px;
      margin-bottom:18px;
      border-radius:16px;
      background:linear-gradient(135deg,rgba(40,215,255,.25),rgba(184,92,255,.25));
      border:1px solid rgba(255,255,255,.14);
      display:flex;
      align-items:center;
      justify-content:center;
      color:#fff;
      font-weight:900;
      box-shadow:0 0 22px rgba(40,215,255,.16);
    }
    .scenario-card h3{font-size:19px}
    .scenario-card p{font-size:15px;margin-bottom:0}
    .process-panel{
      padding:34px;
      overflow:hidden;
      position:relative;
    }
    .process-panel:before{
      content:"";
      position:absolute;
      left:52px;
      top:78px;
      bottom:64px;
      width:2px;
      background:linear-gradient(var(--cyan),var(--purple));
      opacity:.55;
    }
    .process-item{
      position:relative;
      display:grid;
      grid-template-columns:72px 1fr;
      gap:20px;
      padding:18px 0;
    }
    .process-node{
      width:42px;
      height:42px;
      border-radius:50%;
      display:flex;
      align-items:center;
      justify-content:center;
      color:#fff;
      font-weight:900;
      background:linear-gradient(135deg,var(--cyan),var(--purple));
      box-shadow:0 0 24px rgba(40,215,255,.34);
      z-index:1;
    }
    .process-item h3{
      font-size:21px;
      margin-bottom:6px;
      font-weight:850;
    }
    .process-item p{
      color:var(--muted);
      margin-bottom:0;
    }
    .faq-wrap{
      display:grid;
      gap:14px;
    }
    .faq-item{
      overflow:hidden;
      box-shadow:none;
    }
    .faq-item details{padding:0}
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:20px 24px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      font-size:17px;
      font-weight:850;
      color:#fff;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{
      content:"+";
      width:32px;
      height:32px;
      border-radius:50%;
      display:flex;
      align-items:center;
      justify-content:center;
      color:#fff;
      background:rgba(40,215,255,.14);
      border:1px solid rgba(40,215,255,.28);
      flex:0 0 32px;
      transition:var(--ease);
    }
    .faq-item details[open] summary:after{
      content:"−";
      background:linear-gradient(135deg,var(--cyan),var(--purple));
    }
    .faq-answer{
      padding:0 24px 22px;
      color:var(--muted);
    }
    .cta-panel{
      position:relative;
      overflow:hidden;
      padding:46px;
      background:
        radial-gradient(circle at 18% 30%,rgba(40,215,255,.18),transparent 28%),
        radial-gradient(circle at 82% 22%,rgba(184,92,255,.2),transparent 30%),
        linear-gradient(135deg,rgba(255,255,255,.09),rgba(255,255,255,.045));
    }
    .cta-panel:before{
      content:"";
      position:absolute;
      right:40px;
      top:34px;
      width:180px;
      height:180px;
      border-radius:50%;
      border:1px solid rgba(217,181,109,.2);
      box-shadow:0 0 80px rgba(40,215,255,.12);
    }
    .cta-panel h2{
      max-width:780px;
      margin-bottom:14px;
    }
    .cta-panel p{
      max-width:720px;
      color:var(--muted);
      margin-bottom:24px;
    }
    .site-footer{
      padding:70px 0 28px;
      background:
        radial-gradient(circle at 22% 0%,rgba(40,215,255,.12),transparent 32%),
        linear-gradient(180deg,rgba(5,11,20,.6),#03070D);
      border-top:1px solid rgba(255,255,255,.1);
    }
    .footer-brand p{
      max-width:430px;
      margin-top:18px;
      color:var(--muted);
    }
    .footer-title{
      margin-bottom:16px;
      color:#fff;
      font-weight:850;
      font-size:16px;
    }
    .footer-links{
      display:grid;
      gap:10px;
      color:var(--weak);
      font-size:14px;
    }
    .footer-links a:hover{color:var(--cyan)}
    .copyright{
      margin-top:46px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.1);
      display:flex;
      justify-content:space-between;
      gap:18px;
      color:var(--weak);
      font-size:13px;
    }

    @media (max-width:1024px){
      .brand{min-width:auto}
      .search-pill{display:none}
      h1{font-size:46px}
      .hero-card{padding:30px}
      .hero-meta{grid-template-columns:1fr}
      .scenario-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .section{padding:70px 0}
    }
    @media (max-width:768px){
      .desktop-nav,.nav-actions .btn-primary{display:none}
      .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
      .mobile-panel.is-open{display:grid}
      .site-header{padding:10px 0}
      .page-hero{padding:126px 0 58px}
      h1{font-size:38px}
      h2{font-size:30px}
      .section-head{display:block}
      .hero-card{padding:24px;border-radius:26px}
      .visual-stage{margin-top:24px;min-height:310px}
      .compact-card{grid-template-columns:74px 1fr}
      .mini-cover{width:74px;height:74px;border-radius:17px}
      .scenario-grid{grid-template-columns:1fr}
      .cta-panel{padding:30px}
      .copyright{flex-direction:column}
    }
    @media (max-width:520px){
      .brand-text{font-size:14px}
      .brand-text small{font-size:11px}
      .brand-mark{width:38px;height:38px;flex-basis:38px}
      h1{font-size:34px}
      .hero-desc{font-size:16px}
      .hero-actions{flex-direction:column}
      .btn{width:100%}
      .filter-bar{overflow-x:auto;flex-wrap:nowrap;padding-bottom:12px}
      .filter-tag{white-space:nowrap}
      .feature-body{padding:22px}
      .cover{height:190px}
      .compact-card{display:block}
      .mini-cover{margin-bottom:14px}
      .process-panel{padding:24px}
      .process-panel:before{left:42px}
      .process-item{grid-template-columns:52px 1fr;gap:14px}
      .site-footer{padding-top:54px}
    }