/* roulang page: index */
:root{
      --bg: #f8fafc;
      --bg-soft: #eef4ff;
      --surface: #ffffff;
      --surface-2: #f8fbff;
      --text: #0f172a;
      --muted: #475569;
      --weak: #64748b;
      --line: #e2e8f0;
      --blue: #2563eb;
      --blue-2: #2f6feb;
      --indigo: #4f46e5;
      --gold: #d9a441;
      --shadow: 0 20px 60px rgba(15, 23, 42, 0.08);
      --shadow-strong: 0 24px 70px rgba(37, 99, 235, 0.16);
      --radius-xl: 1.5rem;
      --radius-2xl: 1.25rem;
      --radius-lg: 1rem;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(37,99,235,.08), transparent 28%),
        radial-gradient(circle at top right, rgba(79,70,229,.08), transparent 24%),
        linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(37,99,235,.15);color:var(--text)}
    .site-container{width:min(100%, 80rem); margin:0 auto; padding-left:1rem; padding-right:1rem;}
    @media (min-width:640px){.site-container{padding-left:1.5rem; padding-right:1.5rem;}}
    @media (min-width:1024px){.site-container{padding-left:2rem; padding-right:2rem;}}
    .section-gap{padding-top:4.5rem;padding-bottom:4.5rem}
    @media (min-width:768px){.section-gap{padding-top:6rem;padding-bottom:6rem}}
    @media (min-width:1280px){.section-gap{padding-top:7rem;padding-bottom:7rem}}
    .section-kicker{
      display:inline-flex; align-items:center; gap:.5rem;
      font-size:.78rem; font-weight:700; letter-spacing:.08em; text-transform:uppercase;
      color:var(--blue); background:rgba(37,99,235,.08); border:1px solid rgba(37,99,235,.14);
      padding:.45rem .8rem; border-radius:9999px;
    }
    .section-title{
      font-size:clamp(1.75rem, 2.5vw, 2.65rem);
      line-height:1.18;
      font-weight:800;
      letter-spacing:-.02em;
      color:var(--text);
    }
    .section-desc{color:var(--muted); font-size:1rem; line-height:1.8; max-width:58rem}
    .surface-card{
      background:rgba(255,255,255,.96);
      border:1px solid rgba(226,232,240,.9);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow);
    }
    .surface-card-soft{
      background:linear-gradient(180deg, rgba(255,255,255,.98), rgba(248,251,255,.98));
      border:1px solid rgba(226,232,240,.95);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow);
    }
    .glow-band{
      background:
        linear-gradient(135deg, rgba(37,99,235,.12), rgba(79,70,229,.11)),
        linear-gradient(180deg, rgba(255,255,255,.96), rgba(255,255,255,.88));
      border:1px solid rgba(37,99,235,.12);
      box-shadow:var(--shadow);
    }
    .brand-badge{
      width:2.75rem;height:2.75rem;border-radius:1rem;
      background:linear-gradient(135deg, var(--blue), var(--indigo));
      color:#fff; display:grid; place-items:center; font-weight:800;
      box-shadow:0 14px 30px rgba(37,99,235,.25);
      flex:none;
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      padding:.7rem .95rem;
      border-radius:9999px;
      color:#334155;
      font-weight:600;
      transition:all .2s ease;
    }
    .nav-link:hover{
      background:rgba(37,99,235,.08);
      color:var(--blue);
    }
    .nav-link[aria-current="page"]{
      background:rgba(37,99,235,.1);
      color:var(--blue);
      box-shadow:inset 0 0 0 1px rgba(37,99,235,.12);
    }
    .cta-primary{
      display:inline-flex; align-items:center; justify-content:center; gap:.55rem;
      padding:.9rem 1.35rem;
      border-radius:9999px;
      background:linear-gradient(135deg, var(--blue), var(--blue-2));
      color:#fff;
      font-weight:700;
      box-shadow:0 16px 30px rgba(37,99,235,.22);
      transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
    }
    .cta-primary:hover{transform:translateY(-1px); box-shadow:var(--shadow-strong)}
    .cta-primary:active{transform:translateY(0)}
    .cta-secondary{
      display:inline-flex; align-items:center; justify-content:center; gap:.55rem;
      padding:.9rem 1.35rem;
      border-radius:9999px;
      background:#fff;
      color:var(--blue);
      border:1px solid rgba(37,99,235,.18);
      font-weight:700;
      transition:transform .18s ease, border-color .18s ease, background .18s ease;
    }
    .cta-secondary:hover{transform:translateY(-1px); background:rgba(37,99,235,.04); border-color:rgba(37,99,235,.32)}
    .pill{
      display:inline-flex; align-items:center; gap:.4rem;
      padding:.4rem .7rem;
      border-radius:9999px;
      background:#fff;
      border:1px solid var(--line);
      color:var(--weak);
      font-size:.86rem;
      font-weight:600;
    }
    .mini-label{
      display:inline-flex; align-items:center; gap:.35rem;
      padding:.3rem .6rem;
      border-radius:9999px;
      background:rgba(217,164,65,.12);
      color:#8a6300;
      font-size:.78rem;
      font-weight:700;
    }
    .card{
      background:rgba(255,255,255,.98);
      border:1px solid rgba(226,232,240,.92);
      border-radius:1.35rem;
      box-shadow:var(--shadow);
      transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .card:hover{
      transform:translateY(-2px);
      border-color:rgba(37,99,235,.22);
      box-shadow:0 24px 70px rgba(15,23,42,.11);
    }
    .card-topline{
      height:.34rem;
      border-radius:9999px 9999px 0 0;
      background:linear-gradient(90deg, var(--blue), var(--indigo), rgba(217,164,65,.9));
    }
    .icon-box{
      width:2.7rem;height:2.7rem;border-radius:.95rem;
      display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(37,99,235,.1), rgba(79,70,229,.11));
      color:var(--blue);
      flex:none;
    }
    .stat{
      display:flex; align-items:flex-start; justify-content:space-between; gap:1rem;
      padding:1rem 1.1rem;
      border-radius:1.1rem;
      background:linear-gradient(180deg, rgba(248,250,252,.95), #fff);
      border:1px solid rgba(226,232,240,.92);
    }
    .stat strong{display:block;font-size:1.5rem;line-height:1.1;letter-spacing:-.02em}
    .stat span{display:block;color:var(--weak);font-size:.86rem;margin-top:.2rem}
    .soft-grid{
      background-image:
        linear-gradient(to right, rgba(148,163,184,.09) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(148,163,184,.09) 1px, transparent 1px);
      background-size:36px 36px;
      background-position:center;
    }
    .mosaic{
      background:
        radial-gradient(circle at 15% 20%, rgba(37,99,235,.16), transparent 23%),
        radial-gradient(circle at 82% 24%, rgba(79,70,229,.15), transparent 22%),
        radial-gradient(circle at 50% 72%, rgba(217,164,65,.14), transparent 20%),
        linear-gradient(180deg, rgba(248,250,252,.92), rgba(255,255,255,.98));
      border:1px solid rgba(226,232,240,.95);
      box-shadow:var(--shadow);
      border-radius:1.6rem;
    }
    .flow-item{
      display:flex; gap:1rem; padding:1rem 1.05rem; border-radius:1.15rem;
      background:rgba(255,255,255,.92);
      border:1px solid rgba(226,232,240,.9);
    }
    .flow-num{
      width:2.25rem;height:2.25rem;border-radius:9999px; flex:none;
      display:grid;place-items:center;
      background:rgba(37,99,235,.1); color:var(--blue); font-weight:800;
    }
    .faq details{
      background:#fff;
      border:1px solid rgba(226,232,240,.95);
      border-radius:1.2rem;
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .faq summary{
      list-style:none;
      cursor:pointer;
      padding:1rem 1.1rem;
      font-weight:700;
      color:var(--text);
      transition:background .18s ease;
    }
    .faq summary::-webkit-details-marker{display:none}
    .faq summary:hover{background:rgba(37,99,235,.05)}
    .faq details[open] summary{background:rgba(37,99,235,.06)}
    .faq .answer{padding:0 1.1rem 1.1rem;color:var(--muted);line-height:1.8}
    .footer-link{
      color:#475569; transition:color .18s ease;
    }
    .footer-link:hover{color:var(--blue)}
    .input{
      width:100%;
      background:#fff;
      border:1px solid rgba(226,232,240,.95);
      color:var(--text);
      border-radius:1rem;
      padding:.95rem 1rem;
      outline:none;
      transition:border-color .18s ease, box-shadow .18s ease, transform .18s ease;
    }
    .input::placeholder{color:#94a3b8}
    .input:focus{
      border-color:rgba(37,99,235,.45);
      box-shadow:0 0 0 4px rgba(37,99,235,.12);
    }
    .mobile-panel{
      border-top:1px solid rgba(226,232,240,.9);
      background:rgba(255,255,255,.98);
      box-shadow:0 18px 40px rgba(15,23,42,.08);
    }
    .band{
      border-radius:1.35rem;
      border:1px solid rgba(226,232,240,.95);
      background:
        linear-gradient(90deg, rgba(37,99,235,.08), rgba(79,70,229,.05), rgba(217,164,65,.07)),
        rgba(255,255,255,.95);
    }
    .subtle-divider{height:1px;background:linear-gradient(90deg, transparent, rgba(148,163,184,.35), transparent)}

/* roulang page: category1 */
:root{
      --brand:#2563EB;
      --brand-dark:#1D4ED8;
      --indigo:#4F46E5;
      --gold:#D9A441;
      --amber:#F59E0B;
      --ink:#0F172A;
      --text:#475569;
      --muted:#64748B;
      --line:#E2E8F0;
      --soft:#F8FAFC;
      --soft-blue:#EEF4FF;
      --white:#FFFFFF;
      --radius-xl:1.25rem;
      --radius-2xl:1.5rem;
      --radius-3xl:2rem;
      --shadow-soft:0 20px 60px rgba(15,23,42,0.08);
      --shadow-hover:0 26px 70px rgba(37,99,235,0.14);
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 0%, rgba(37,99,235,.08), transparent 32rem),
        radial-gradient(circle at 90% 10%, rgba(79,70,229,.07), transparent 34rem),
        linear-gradient(180deg,#fff 0%,#F8FAFC 48%,#fff 100%);
      line-height:1.75;
      overflow-x:hidden;
    }

    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(37,99,235,.16);color:var(--ink)}

    .site-container{
      width:min(100% - 32px, 1280px);
      margin-inline:auto;
    }

    .skip-link{
      position:absolute;
      left:16px;
      top:-80px;
      z-index:80;
      border-radius:999px;
      background:var(--brand);
      color:#fff;
      padding:.75rem 1rem;
      transition:.2s ease;
    }
    .skip-link:focus{top:16px;outline:3px solid rgba(37,99,235,.25)}

    .brand-badge{
      width:42px;
      height:42px;
      border-radius:16px;
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:900;
      letter-spacing:.02em;
      background:linear-gradient(135deg,var(--brand),var(--indigo));
      box-shadow:0 14px 30px rgba(37,99,235,.22);
      flex:0 0 auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      border-bottom:1px solid rgba(226,232,240,.82);
      background:rgba(255,255,255,.9);
      backdrop-filter:blur(18px);
      box-shadow:0 8px 24px rgba(15,23,42,.035);
    }

    .nav-link{
      display:inline-flex;
      align-items:center;
      gap:.35rem;
      border-radius:999px;
      padding:.68rem .95rem;
      color:#475569;
      font-size:.95rem;
      font-weight:700;
      transition:background .2s ease,color .2s ease,transform .2s ease;
    }
    .nav-link:hover{
      color:var(--brand);
      background:#EFF6FF;
      transform:translateY(-1px);
    }
    .nav-link.active,
    .nav-link[aria-current="page"]{
      color:var(--brand);
      background:#DBEAFE;
    }

    .btn-primary,
    .btn-secondary{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.5rem;
      border-radius:999px;
      padding:.86rem 1.25rem;
      font-weight:800;
      line-height:1.2;
      transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
      min-height:46px;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--indigo));
      box-shadow:0 16px 36px rgba(37,99,235,.22);
    }
    .btn-primary:hover{
      transform:translateY(-2px);
      background:linear-gradient(135deg,var(--brand-dark),#4338CA);
      box-shadow:0 22px 48px rgba(37,99,235,.28);
    }
    .btn-secondary{
      color:var(--brand);
      background:#fff;
      border:1px solid #BFDBFE;
      box-shadow:0 12px 30px rgba(15,23,42,.05);
    }
    .btn-secondary:hover{
      transform:translateY(-2px);
      background:#EFF6FF;
      border-color:#93C5FD;
    }
    .btn-primary:focus-visible,
    .btn-secondary:focus-visible,
    .nav-link:focus-visible,
    .footer-link:focus-visible,
    summary:focus-visible,
    input:focus-visible,
    select:focus-visible,
    textarea:focus-visible{
      outline:3px solid rgba(37,99,235,.28);
      outline-offset:3px;
    }

    .mobile-panel{
      display:none;
      border-top:1px solid rgba(226,232,240,.9);
      background:rgba(255,255,255,.97);
    }
    .mobile-panel.open{display:block}
    .mobile-link{
      display:flex;
      align-items:center;
      justify-content:space-between;
      border:1px solid var(--line);
      border-radius:18px;
      padding:.9rem 1rem;
      font-weight:800;
      color:#334155;
      background:#fff;
      transition:.2s ease;
    }
    .mobile-link:hover,
    .mobile-link.active{
      color:var(--brand);
      border-color:#BFDBFE;
      background:#EFF6FF;
    }

    .section{
      padding:88px 0;
    }
    .section-tight{
      padding:68px 0;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      border:1px solid #BFDBFE;
      border-radius:999px;
      padding:.38rem .72rem;
      color:var(--brand);
      background:#EFF6FF;
      font-size:.82rem;
      font-weight:900;
      letter-spacing:.04em;
    }
    .gold-dot{
      width:.52rem;
      height:.52rem;
      border-radius:999px;
      background:var(--gold);
      box-shadow:0 0 0 5px rgba(217,164,65,.14);
    }
    .section-title{
      color:var(--ink);
      font-size:clamp(2rem,4vw,2.85rem);
      line-height:1.18;
      font-weight:900;
      letter-spacing:-.045em;
    }
    .section-desc{
      max-width:760px;
      color:#64748B;
      font-size:1.05rem;
      line-height:1.9;
    }

    .hero-shell{
      position:relative;
      padding:78px 0 56px;
      overflow:hidden;
    }
    .hero-shell:before{
      content:"";
      position:absolute;
      inset:0;
      z-index:-2;
      background:
        linear-gradient(115deg, rgba(238,244,255,.88), rgba(255,255,255,.7) 48%, rgba(255,248,232,.42)),
        radial-gradient(circle at 78% 16%, rgba(217,164,65,.16), transparent 18rem);
    }
    .hero-shell:after{
      content:"";
      position:absolute;
      right:-120px;
      top:70px;
      width:360px;
      height:360px;
      border-radius:999px;
      z-index:-1;
      background:radial-gradient(circle, rgba(79,70,229,.12), transparent 68%);
    }
    .hero-title{
      color:var(--ink);
      font-size:clamp(2.35rem,6vw,4rem);
      line-height:1.12;
      font-weight:950;
      letter-spacing:-.06em;
    }
    .gradient-word{
      color:transparent;
      background:linear-gradient(135deg,var(--brand),var(--indigo));
      -webkit-background-clip:text;
      background-clip:text;
    }

    .index-card{
      position:relative;
      border:1px solid rgba(226,232,240,.92);
      border-radius:var(--radius-3xl);
      background:#fff;
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .index-card:before{
      content:"";
      position:absolute;
      inset:0 0 auto 0;
      height:8px;
      background:linear-gradient(90deg,var(--brand),var(--indigo),var(--gold));
    }

    .panel-card,
    .mag-card,
    .strip-card,
    .faq-card{
      border:1px solid rgba(226,232,240,.95);
      border-radius:var(--radius-3xl);
      background:#fff;
      box-shadow:var(--shadow-soft);
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }
    .panel-card:hover,
    .mag-card:hover,
    .strip-card:hover{
      transform:translateY(-5px);
      border-color:#BFDBFE;
      box-shadow:var(--shadow-hover);
    }

    .mag-card{
      overflow:hidden;
    }
    .mag-top{
      min-height:138px;
      padding:1.2rem;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      background:
        linear-gradient(135deg, rgba(37,99,235,.12), rgba(79,70,229,.08)),
        radial-gradient(circle at 85% 8%, rgba(217,164,65,.22), transparent 7rem);
    }
    .mag-top.purple{
      background:
        linear-gradient(135deg, rgba(79,70,229,.13), rgba(238,244,255,.75)),
        radial-gradient(circle at 80% 20%, rgba(37,99,235,.14), transparent 8rem);
    }
    .mag-top.gold{
      background:
        linear-gradient(135deg, rgba(217,164,65,.18), rgba(255,255,255,.75)),
        radial-gradient(circle at 78% 18%, rgba(37,99,235,.11), transparent 7rem);
    }
    .mag-no{
      color:rgba(15,23,42,.18);
      font-size:2.6rem;
      line-height:1;
      font-weight:950;
      letter-spacing:-.08em;
    }
    .tag{
      display:inline-flex;
      width:max-content;
      align-items:center;
      gap:.35rem;
      border-radius:999px;
      padding:.32rem .62rem;
      color:#1D4ED8;
      background:#DBEAFE;
      font-size:.78rem;
      font-weight:900;
    }
    .tag.gold{
      color:#92400E;
      background:#FEF3C7;
    }
    .tag.indigo{
      color:#3730A3;
      background:#E0E7FF;
    }

    .info-strip{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:1rem;
      align-items:center;
      border:1px solid rgba(226,232,240,.95);
      border-radius:24px;
      background:#fff;
      padding:1.15rem;
      box-shadow:0 14px 36px rgba(15,23,42,.055);
      transition:.2s ease;
    }
    .info-strip:hover{
      border-color:#BFDBFE;
      transform:translateY(-2px);
    }
    .strip-icon{
      width:46px;
      height:46px;
      display:grid;
      place-items:center;
      border-radius:18px;
      color:#fff;
      font-weight:950;
      background:linear-gradient(135deg,var(--brand),var(--indigo));
      box-shadow:0 12px 24px rgba(37,99,235,.18);
    }

    .feature-line{
      height:1px;
      background:linear-gradient(90deg,transparent,#CBD5E1,transparent);
    }

    .topic-banner{
      position:relative;
      overflow:hidden;
      border-radius:34px;
      border:1px solid #BFDBFE;
      background:
        linear-gradient(135deg,#EFF6FF,#fff 42%,#F8FAFC),
        radial-gradient(circle at 85% 20%, rgba(217,164,65,.22), transparent 16rem);
      box-shadow:var(--shadow-soft);
    }
    .topic-banner:after{
      content:"";
      position:absolute;
      right:-60px;
      bottom:-80px;
      width:260px;
      height:260px;
      border-radius:999px;
      background:rgba(37,99,235,.09);
    }

    details.faq-card{
      overflow:hidden;
      border-radius:24px;
      box-shadow:0 12px 34px rgba(15,23,42,.052);
    }
    details.faq-card[open]{
      border-color:#BFDBFE;
      box-shadow:0 18px 48px rgba(37,99,235,.11);
    }
    summary{
      list-style:none;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:1rem;
      padding:1.15rem 1.25rem;
      color:var(--ink);
      font-weight:900;
      cursor:pointer;
      transition:background .18s ease;
    }
    summary::-webkit-details-marker{display:none}
    summary:hover{background:#F8FAFC}
    .faq-body{
      padding:0 1.25rem 1.25rem;
      color:#64748B;
      font-size:.98rem;
    }
    .faq-plus{
      width:28px;
      height:28px;
      flex:0 0 auto;
      display:grid;
      place-items:center;
      border-radius:999px;
      background:#EFF6FF;
      color:var(--brand);
      transition:transform .2s ease;
    }
    details[open] .faq-plus{transform:rotate(45deg)}

    .form-field{
      width:100%;
      border:1px solid var(--line);
      border-radius:18px;
      background:#fff;
      padding:.9rem 1rem;
      color:#0F172A;
      transition:.18s ease;
    }
    .form-field::placeholder{color:#94A3B8}
    .form-field:focus{
      border-color:#60A5FA;
      box-shadow:0 0 0 4px rgba(37,99,235,.12);
      outline:none;
    }

    .footer-link{
      color:#64748B;
      font-weight:700;
      transition:color .18s ease, transform .18s ease;
    }
    .footer-link:hover{
      color:var(--brand);
      transform:translateX(2px);
      display:inline-block;
    }
    .subtle-divider{
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(148,163,184,.55), transparent);
    }

    @media (max-width:1024px){
      .section{padding:72px 0}
      .hero-shell{padding:60px 0 44px}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 28px,1280px)}
      .section{padding:60px 0}
      .section-tight{padding:52px 0}
      .hero-title{font-size:clamp(2.15rem,11vw,3rem)}
      .info-strip{grid-template-columns:1fr;gap:.75rem}
      .info-strip .strip-icon{width:42px;height:42px}
      .btn-primary,.btn-secondary{width:100%}
      summary{align-items:flex-start}
    }
    @media (max-width:520px){
      .brand-badge{width:38px;height:38px;border-radius:14px}
      .section-title{font-size:1.85rem}
      .hero-shell{padding-top:44px}
      .panel-card,.mag-card,.strip-card,.faq-card,.topic-banner{border-radius:24px}
    }

/* roulang page: category2 */
:root {
      --color-primary: #2563EB;
      --color-primary-dark: #1D4ED8;
      --color-secondary: #4F46E5;
      --color-accent: #D9A441;
      --color-bg: #F8FAFC;
      --color-bg-soft: #EEF4FF;
      --color-text: #0F172A;
      --color-muted: #475569;
      --color-subtle: #64748B;
      --color-border: #E2E8F0;
      --radius-xl: 1.25rem;
      --radius-2xl: 1.5rem;
      --radius-3xl: 2rem;
      --shadow-card: 0 20px 60px rgba(15, 23, 42, 0.08);
      --shadow-hover: 0 28px 80px rgba(37, 99, 235, 0.14);
      --container: 80rem;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      min-height: 100vh;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
      color: var(--color-text);
      background:
        radial-gradient(circle at 10% 0%, rgba(37, 99, 235, 0.10), transparent 28rem),
        radial-gradient(circle at 90% 12%, rgba(79, 70, 229, 0.08), transparent 26rem),
        linear-gradient(180deg, #ffffff 0%, var(--color-bg) 48%, #ffffff 100%);
      line-height: 1.75;
      text-rendering: optimizeLegibility;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, background-color .2s ease, transform .2s ease, border-color .2s ease;
    }

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

    button,
    input,
    textarea,
    select {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

    ::selection {
      background: rgba(37, 99, 235, 0.16);
      color: var(--color-text);
    }

    .site-container {
      width: min(100% - 2rem, var(--container));
      margin-inline: auto;
    }

    @media (min-width: 768px) {
      .site-container {
        width: min(100% - 3rem, var(--container));
      }
    }

    .brand-badge {
      width: 2.75rem;
      height: 2.75rem;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 1rem;
      color: #fff;
      font-weight: 900;
      background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
      box-shadow: 0 16px 36px rgba(37, 99, 235, 0.22);
      flex: 0 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      border-bottom: 1px solid rgba(226, 232, 240, .76);
      background: rgba(255, 255, 255, .88);
      backdrop-filter: blur(18px);
      transition: box-shadow .2s ease, background-color .2s ease;
    }

    .site-header.is-scrolled {
      box-shadow: 0 16px 42px rgba(15, 23, 42, .08);
      background: rgba(255, 255, 255, .94);
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      min-height: 2.625rem;
      padding: .55rem .9rem;
      border-radius: 999px;
      color: #475569;
      font-size: .95rem;
      font-weight: 700;
      white-space: nowrap;
    }

    .nav-link:hover {
      color: var(--color-primary);
      background: rgba(37, 99, 235, .08);
    }

    .nav-link[aria-current="page"],
    .nav-link.active {
      color: var(--color-primary);
      background: rgba(37, 99, 235, .10);
    }

    .btn-primary,
    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: .5rem;
      min-height: 3rem;
      padding: .78rem 1.35rem;
      border-radius: 999px;
      font-weight: 800;
      line-height: 1.2;
      transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, border-color .2s ease;
    }

    .btn-primary {
      color: #fff;
      background: var(--color-primary);
      box-shadow: 0 18px 36px rgba(37, 99, 235, .22);
    }

    .btn-primary:hover {
      background: var(--color-primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 24px 48px rgba(29, 78, 216, .25);
    }

    .btn-secondary {
      color: var(--color-primary);
      background: #fff;
      border: 1px solid rgba(37, 99, 235, .20);
      box-shadow: 0 10px 26px rgba(15, 23, 42, .05);
    }

    .btn-secondary:hover {
      background: #EFF6FF;
      border-color: rgba(37, 99, 235, .35);
      transform: translateY(-2px);
    }

    .btn-primary:focus-visible,
    .btn-secondary:focus-visible,
    .nav-link:focus-visible,
    .mobile-menu-button:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    select:focus-visible,
    summary:focus-visible {
      outline: 3px solid rgba(37, 99, 235, .28);
      outline-offset: 3px;
    }

    .mobile-menu-button {
      width: 2.75rem;
      height: 2.75rem;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 1rem;
      border: 1px solid var(--color-border);
      background: #fff;
      color: var(--color-text);
      transition: background-color .2s ease, border-color .2s ease;
    }

    .mobile-menu-button:hover {
      background: #EFF6FF;
      border-color: rgba(37, 99, 235, .28);
    }

    .mobile-panel {
      display: none;
      border-top: 1px solid rgba(226, 232, 240, .8);
      background: rgba(255, 255, 255, .98);
    }

    .mobile-panel.open {
      display: block;
    }

    .section-pad {
      padding-block: 5.5rem;
    }

    .section-pad-sm {
      padding-block: 4.25rem;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: .45rem;
      padding: .38rem .75rem;
      border-radius: 999px;
      border: 1px solid rgba(37, 99, 235, .14);
      background: rgba(37, 99, 235, .07);
      color: var(--color-primary);
      font-size: .82rem;
      font-weight: 900;
      letter-spacing: .02em;
    }

    .gold-tag {
      display: inline-flex;
      align-items: center;
      gap: .35rem;
      padding: .32rem .64rem;
      border-radius: 999px;
      background: rgba(217, 164, 65, .12);
      color: #9A6A13;
      font-size: .78rem;
      font-weight: 900;
    }

    .card {
      border: 1px solid rgba(226, 232, 240, .92);
      border-radius: var(--radius-3xl);
      background: rgba(255, 255, 255, .92);
      box-shadow: var(--shadow-card);
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }

    .card:hover {
      transform: translateY(-4px);
      border-color: rgba(37, 99, 235, .25);
      box-shadow: var(--shadow-hover);
    }

    .soft-card {
      border: 1px solid rgba(226, 232, 240, .88);
      border-radius: var(--radius-2xl);
      background: rgba(255, 255, 255, .86);
      box-shadow: 0 12px 34px rgba(15, 23, 42, .05);
    }

    .hero-grid {
      display: grid;
      gap: 2rem;
      align-items: center;
      grid-template-columns: minmax(0, 1.03fr) minmax(320px, .97fr);
    }

    .hero-visual {
      position: relative;
      min-height: 520px;
      border-radius: 2.25rem;
      overflow: hidden;
      border: 1px solid rgba(226, 232, 240, .86);
      background:
        linear-gradient(135deg, rgba(238, 244, 255, .96), rgba(255, 255, 255, .96)),
        radial-gradient(circle at 16% 20%, rgba(37, 99, 235, .18), transparent 16rem);
      box-shadow: var(--shadow-card);
    }

    .hero-visual::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(37, 99, 235, .08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37, 99, 235, .08) 1px, transparent 1px);
      background-size: 42px 42px;
      mask-image: linear-gradient(180deg, rgba(0,0,0,.7), transparent 86%);
      pointer-events: none;
    }

    .dashboard-card {
      position: absolute;
      border: 1px solid rgba(226, 232, 240, .9);
      border-radius: 1.75rem;
      background: rgba(255,255,255,.92);
      box-shadow: 0 24px 60px rgba(15, 23, 42, .10);
      backdrop-filter: blur(8px);
    }

    .metric-pill {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      padding: .95rem 1rem;
      border-radius: 1.25rem;
      background: #F8FAFC;
      border: 1px solid rgba(226,232,240,.88);
    }

    .step-line {
      position: relative;
    }

    .step-line::before {
      content: "";
      position: absolute;
      left: 1.5rem;
      top: 3.25rem;
      bottom: 1rem;
      width: 2px;
      background: linear-gradient(180deg, rgba(37,99,235,.25), rgba(79,70,229,.10));
    }

    .step-item {
      position: relative;
      display: grid;
      grid-template-columns: 3rem minmax(0, 1fr);
      gap: 1rem;
      padding: 1.25rem;
      border: 1px solid rgba(226,232,240,.9);
      border-radius: var(--radius-2xl);
      background: rgba(255,255,255,.9);
      box-shadow: 0 14px 34px rgba(15,23,42,.05);
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }

    .step-item:hover {
      transform: translateX(4px);
      border-color: rgba(37,99,235,.24);
      box-shadow: 0 20px 48px rgba(37,99,235,.10);
    }

    .step-number {
      width: 3rem;
      height: 3rem;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 1.15rem;
      color: #fff;
      font-weight: 900;
      background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
      box-shadow: 0 14px 30px rgba(37,99,235,.20);
      z-index: 1;
    }

    .feature-icon {
      width: 3rem;
      height: 3rem;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 1.1rem;
      color: var(--color-primary);
      background: rgba(37, 99, 235, .09);
      font-weight: 900;
      font-size: 1.1rem;
    }

    .compare-card {
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(226,232,240,.9);
      border-radius: var(--radius-3xl);
      background: #fff;
      box-shadow: 0 18px 46px rgba(15,23,42,.06);
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }

    .compare-card:hover {
      transform: translateY(-5px);
      border-color: rgba(37,99,235,.25);
      box-shadow: var(--shadow-hover);
    }

    .compare-card.recommended {
      border-color: rgba(37,99,235,.36);
      box-shadow: 0 26px 70px rgba(37,99,235,.12);
    }

    .compare-card.recommended::before {
      content: "";
      position: absolute;
      inset-inline: 0;
      top: 0;
      height: .35rem;
      background: linear-gradient(90deg, var(--color-primary), var(--color-secondary), var(--color-accent));
    }

    .check-list li {
      display: flex;
      gap: .7rem;
      align-items: flex-start;
      color: var(--color-muted);
      line-height: 1.7;
    }

    .check-list li + li {
      margin-top: .72rem;
    }

    .check-dot {
      margin-top: .28rem;
      width: 1.15rem;
      height: 1.15rem;
      border-radius: 999px;
      flex: 0 0 auto;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(37,99,235,.10);
      color: var(--color-primary);
      font-size: .72rem;
      font-weight: 900;
    }

    .scenario-card {
      display: grid;
      grid-template-columns: 13rem minmax(0, 1fr);
      gap: 1.25rem;
      align-items: stretch;
      border: 1px solid rgba(226,232,240,.9);
      border-radius: var(--radius-3xl);
      background: #fff;
      box-shadow: var(--shadow-card);
      overflow: hidden;
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }

    .scenario-card:hover {
      transform: translateY(-4px);
      border-color: rgba(37,99,235,.24);
      box-shadow: var(--shadow-hover);
    }

    .scenario-panel {
      min-height: 100%;
      padding: 1.5rem;
      background:
        linear-gradient(145deg, rgba(37,99,235,.12), rgba(79,70,229,.06)),
        radial-gradient(circle at 20% 20%, rgba(217,164,65,.18), transparent 10rem);
    }

    .faq-item {
      border: 1px solid rgba(226,232,240,.9);
      border-radius: 1.4rem;
      background: #fff;
      box-shadow: 0 12px 30px rgba(15,23,42,.045);
      overflow: hidden;
    }

    .faq-item summary {
      list-style: none;
      cursor: pointer;
      padding: 1.25rem 1.35rem;
      font-weight: 900;
      color: var(--color-text);
      transition: background-color .2s ease;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary:hover {
      background: #F8FAFC;
    }

    .faq-item[open] {
      border-color: rgba(37,99,235,.24);
    }

    .faq-item[open] summary {
      color: var(--color-primary);
      background: #EFF6FF;
    }

    .faq-answer {
      padding: 0 1.35rem 1.25rem;
      color: var(--color-muted);
      line-height: 1.8;
    }

    .cta-band {
      position: relative;
      overflow: hidden;
      border-radius: 2.25rem;
      border: 1px solid rgba(191, 219, 254, .76);
      background:
        radial-gradient(circle at 12% 20%, rgba(37,99,235,.16), transparent 20rem),
        radial-gradient(circle at 88% 70%, rgba(217,164,65,.16), transparent 16rem),
        linear-gradient(135deg, #EEF4FF 0%, #FFFFFF 54%, #F8FAFC 100%);
      box-shadow: var(--shadow-card);
    }

    .form-input {
      width: 100%;
      border: 1px solid var(--color-border);
      border-radius: 1rem;
      background: #fff;
      padding: .9rem 1rem;
      color: var(--color-text);
      transition: border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
    }

    .form-input::placeholder {
      color: #94A3B8;
    }

    .form-input:focus {
      border-color: rgba(37,99,235,.55);
      box-shadow: 0 0 0 4px rgba(37,99,235,.10);
      background: #fff;
      outline: none;
    }

    .subtle-divider {
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(148,163,184,.35), transparent);
    }

    .footer-link {
      color: #475569;
      font-weight: 650;
    }

    .footer-link:hover {
      color: var(--color-primary);
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    .arrow-link {
      display: inline-flex;
      align-items: center;
      gap: .4rem;
      color: var(--color-primary);
      font-weight: 900;
    }

    .arrow-link span {
      transition: transform .2s ease;
    }

    .arrow-link:hover span {
      transform: translateX(4px);
    }

    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }

      .hero-visual {
        min-height: 470px;
      }

      .step-line::before {
        display: none;
      }
    }

    @media (max-width: 768px) {
      .section-pad {
        padding-block: 4rem;
      }

      .section-pad-sm {
        padding-block: 3.25rem;
      }

      .hero-visual {
        min-height: 560px;
        border-radius: 1.75rem;
      }

      .dashboard-card {
        position: relative !important;
        inset: auto !important;
        width: auto !important;
        margin: 1rem;
      }

      .scenario-card {
        grid-template-columns: 1fr;
      }

      .scenario-panel {
        min-height: auto;
      }

      .btn-primary,
      .btn-secondary {
        width: 100%;
      }
    }

    @media (max-width: 520px) {
      .site-container {
        width: min(100% - 1.25rem, var(--container));
      }

      .brand-badge {
        width: 2.45rem;
        height: 2.45rem;
        border-radius: .9rem;
      }

      .step-item {
        grid-template-columns: 1fr;
      }

      .step-number {
        width: 2.75rem;
        height: 2.75rem;
      }

      .hero-visual {
        min-height: auto;
        padding-block: .25rem;
      }
    }

/* roulang page: category3 */
:root {
      --color-primary: #2563EB;
      --color-primary-dark: #1D4ED8;
      --color-secondary: #4F46E5;
      --color-gold: #D9A441;
      --color-bg: #F8FAFC;
      --color-soft: #EEF4FF;
      --color-title: #0F172A;
      --color-text: #475569;
      --color-muted: #64748B;
      --color-border: #E2E8F0;
      --radius-xl: 1.25rem;
      --radius-2xl: 1.5rem;
      --radius-3xl: 2rem;
      --shadow-card: 0 20px 60px rgba(15, 23, 42, 0.08);
      --shadow-hover: 0 28px 80px rgba(37, 99, 235, 0.14);
      --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font-sans);
      color: var(--color-text);
      background:
        radial-gradient(circle at 8% 4%, rgba(37, 99, 235, 0.10), transparent 34rem),
        radial-gradient(circle at 92% 8%, rgba(79, 70, 229, 0.09), transparent 30rem),
        linear-gradient(180deg, #ffffff 0%, var(--color-bg) 42%, #ffffff 100%);
      line-height: 1.75;
      min-height: 100vh;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, background-color .2s ease, transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    button,
    input,
    select,
    textarea {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

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

    ::selection {
      background: rgba(37, 99, 235, 0.16);
      color: var(--color-title);
    }

    .site-container {
      width: min(100% - 32px, 1280px);
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(18px);
      box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
    }

    .brand-badge {
      width: 44px;
      height: 44px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      color: #fff;
      font-weight: 900;
      letter-spacing: -0.04em;
      background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
      box-shadow: 0 16px 36px rgba(37, 99, 235, 0.22);
      flex: 0 0 auto;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 0 16px;
      border-radius: 999px;
      color: #475569;
      font-size: 15px;
      font-weight: 700;
      white-space: nowrap;
    }

    .nav-link:hover {
      color: var(--color-primary);
      background: rgba(37, 99, 235, 0.08);
    }

    .nav-link[aria-current="page"],
    .nav-link.active {
      color: var(--color-primary);
      background: rgba(37, 99, 235, 0.10);
      box-shadow: inset 0 0 0 1px rgba(37, 99, 235, 0.10);
    }

    .btn-primary,
    .btn-secondary,
    .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: .5rem;
      border-radius: 999px;
      padding: .86rem 1.35rem;
      font-weight: 800;
      line-height: 1.2;
      transition: transform .22s ease, box-shadow .22s ease, background-color .22s ease, border-color .22s ease, color .22s ease;
    }

    .btn-primary {
      color: #fff;
      background: var(--color-primary);
      box-shadow: 0 14px 34px rgba(37, 99, 235, .22);
    }

    .btn-primary:hover {
      background: var(--color-primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 18px 44px rgba(37, 99, 235, .28);
    }

    .btn-secondary {
      color: var(--color-primary);
      background: #fff;
      border: 1px solid rgba(37, 99, 235, .20);
      box-shadow: 0 10px 26px rgba(15, 23, 42, .05);
    }

    .btn-secondary:hover {
      background: rgba(37, 99, 235, .06);
      transform: translateY(-2px);
      border-color: rgba(37, 99, 235, .34);
    }

    .btn-ghost {
      color: #334155;
      background: rgba(248, 250, 252, .9);
      border: 1px solid var(--color-border);
    }

    .btn-ghost:hover {
      color: var(--color-primary);
      background: #fff;
      border-color: rgba(37, 99, 235, .22);
    }

    .btn-primary:focus-visible,
    .btn-secondary:focus-visible,
    .btn-ghost:focus-visible,
    .nav-link:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    select:focus-visible,
    button:focus-visible,
    summary:focus-visible,
    a:focus-visible {
      outline: 3px solid rgba(37, 99, 235, .28);
      outline-offset: 3px;
    }

    .mobile-panel {
      display: none;
      border-top: 1px solid rgba(226, 232, 240, .85);
      background: rgba(255, 255, 255, .96);
    }

    .mobile-panel.open {
      display: block;
    }

    .hero-shell {
      position: relative;
      padding: 76px 0 54px;
    }

    .hero-shell::before {
      content: "";
      position: absolute;
      inset: 24px auto auto 50%;
      width: min(640px, 92vw);
      height: 360px;
      transform: translateX(-8%);
      border-radius: 999px;
      background: linear-gradient(135deg, rgba(37, 99, 235, .10), rgba(217, 164, 65, .08));
      filter: blur(24px);
      pointer-events: none;
      z-index: -1;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: .5rem;
      border: 1px solid rgba(37, 99, 235, .16);
      border-radius: 999px;
      padding: .42rem .78rem;
      color: var(--color-primary);
      background: rgba(239, 246, 255, .86);
      font-size: .85rem;
      font-weight: 800;
    }

    .eyebrow-dot {
      width: .5rem;
      height: .5rem;
      border-radius: 999px;
      background: var(--color-gold);
      box-shadow: 0 0 0 5px rgba(217, 164, 65, .12);
    }

    .hero-title {
      color: var(--color-title);
      font-size: clamp(2.15rem, 5vw, 4rem);
      line-height: 1.12;
      font-weight: 900;
      letter-spacing: -0.055em;
    }

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

    .lead {
      color: #475569;
      font-size: clamp(1rem, 1.55vw, 1.15rem);
      line-height: 1.85;
    }

    .panel-card,
    .info-card,
    .faq-card,
    .statement-card,
    .principle-card {
      border: 1px solid rgba(226, 232, 240, .92);
      border-radius: var(--radius-3xl);
      background: rgba(255, 255, 255, .92);
      box-shadow: var(--shadow-card);
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }

    .panel-card:hover,
    .info-card:hover,
    .principle-card:hover {
      transform: translateY(-4px);
      border-color: rgba(37, 99, 235, .22);
      box-shadow: var(--shadow-hover);
    }

    .section {
      padding: 84px 0;
    }

    .section-tight {
      padding: 64px 0;
    }

    .section-header {
      max-width: 760px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: .45rem;
      color: var(--color-primary);
      font-size: .84rem;
      font-weight: 900;
      letter-spacing: .12em;
      text-transform: uppercase;
    }

    .section-title {
      margin-top: .8rem;
      color: var(--color-title);
      font-size: clamp(1.9rem, 3vw, 2.65rem);
      line-height: 1.2;
      font-weight: 900;
      letter-spacing: -0.04em;
    }

    .section-desc {
      margin-top: 1rem;
      color: #64748B;
      font-size: 1.02rem;
      line-height: 1.85;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      border-radius: 999px;
      padding: .34rem .66rem;
      font-size: .78rem;
      font-weight: 800;
      color: #1D4ED8;
      background: rgba(37, 99, 235, .08);
      border: 1px solid rgba(37, 99, 235, .12);
    }

    .tag-gold {
      color: #9A6B10;
      background: rgba(217, 164, 65, .13);
      border-color: rgba(217, 164, 65, .25);
    }

    .icon-box {
      width: 48px;
      height: 48px;
      display: grid;
      place-items: center;
      border-radius: 18px;
      color: var(--color-primary);
      background: linear-gradient(135deg, rgba(37, 99, 235, .12), rgba(79, 70, 229, .08));
      font-size: 1.3rem;
      font-weight: 900;
      flex: 0 0 auto;
    }

    .info-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 22px;
    }

    .check-item {
      display: flex;
      gap: 14px;
      padding: 18px;
      border: 1px solid rgba(226, 232, 240, .9);
      border-radius: 24px;
      background: #fff;
      box-shadow: 0 10px 32px rgba(15, 23, 42, .04);
      transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
    }

    .check-item:hover {
      transform: translateY(-3px);
      border-color: rgba(37, 99, 235, .20);
      box-shadow: 0 18px 46px rgba(15, 23, 42, .08);
    }

    .check-mark {
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      border-radius: 999px;
      color: #fff;
      background: var(--color-primary);
      font-weight: 900;
      flex: 0 0 auto;
      margin-top: 2px;
    }

    .soft-band {
      border: 1px solid rgba(226, 232, 240, .9);
      border-radius: 32px;
      background:
        linear-gradient(135deg, rgba(238, 244, 255, .92), rgba(255, 255, 255, .95)),
        radial-gradient(circle at 8% 16%, rgba(79, 70, 229, .10), transparent 22rem);
      box-shadow: var(--shadow-card);
    }

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

    .principle-card::after {
      content: "";
      position: absolute;
      right: -30px;
      bottom: -30px;
      width: 120px;
      height: 120px;
      border-radius: 999px;
      background: rgba(37, 99, 235, .06);
    }

    .rule-number {
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      border-radius: 14px;
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
      font-weight: 900;
      box-shadow: 0 12px 28px rgba(37, 99, 235, .20);
    }

    details.faq-card {
      overflow: hidden;
      box-shadow: 0 12px 36px rgba(15, 23, 42, .05);
    }

    details.faq-card summary {
      list-style: none;
      cursor: pointer;
      padding: 22px 24px;
      color: var(--color-title);
      font-weight: 850;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      transition: background-color .2s ease;
    }

    details.faq-card summary::-webkit-details-marker {
      display: none;
    }

    details.faq-card summary:hover {
      background: rgba(37, 99, 235, .045);
    }

    details.faq-card[open] {
      border-color: rgba(37, 99, 235, .22);
    }

    .faq-plus {
      width: 30px;
      height: 30px;
      border-radius: 999px;
      display: grid;
      place-items: center;
      color: var(--color-primary);
      background: rgba(37, 99, 235, .08);
      font-weight: 900;
      flex: 0 0 auto;
      transition: transform .2s ease;
    }

    details[open] .faq-plus {
      transform: rotate(45deg);
    }

    .faq-answer {
      padding: 0 24px 24px;
      color: #64748B;
      line-height: 1.85;
      border-top: 1px solid rgba(226, 232, 240, .7);
      padding-top: 18px;
    }

    .form-field {
      width: 100%;
      border: 1px solid rgba(203, 213, 225, .9);
      border-radius: 18px;
      background: #fff;
      padding: 13px 15px;
      color: #0F172A;
      outline: none;
      transition: border-color .2s ease, box-shadow .2s ease;
    }

    .form-field:focus {
      border-color: rgba(37, 99, 235, .55);
      box-shadow: 0 0 0 4px rgba(37, 99, 235, .10);
    }

    .subtle-divider {
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(148, 163, 184, .36), transparent);
    }

    .footer-link {
      color: #64748B;
      font-weight: 650;
    }

    .footer-link:hover {
      color: var(--color-primary);
      padding-left: 2px;
    }

    .status-pill {
      display: inline-flex;
      align-items: center;
      gap: .45rem;
      border-radius: 999px;
      padding: .42rem .7rem;
      background: #F8FAFC;
      border: 1px solid rgba(226, 232, 240, .9);
      color: #64748B;
      font-size: .82rem;
      font-weight: 800;
    }

    .status-dot {
      width: .48rem;
      height: .48rem;
      border-radius: 999px;
      background: #22C55E;
      box-shadow: 0 0 0 4px rgba(34, 197, 94, .10);
    }

    @media (max-width: 1024px) {
      .site-container {
        width: min(100% - 28px, 920px);
      }

      .hero-shell {
        padding: 58px 0 40px;
      }

      .section {
        padding: 68px 0;
      }

      .info-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (max-width: 768px) {
      .site-container {
        width: min(100% - 24px, 680px);
      }

      .brand-badge {
        width: 40px;
        height: 40px;
        border-radius: 14px;
      }

      .hero-title {
        letter-spacing: -0.045em;
      }

      .section {
        padding: 58px 0;
      }

      .section-tight {
        padding: 48px 0;
      }

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

      .btn-primary,
      .btn-secondary,
      .btn-ghost {
        width: 100%;
      }
    }

    @media (max-width: 520px) {
      .site-container {
        width: min(100% - 20px, 100%);
      }

      .hero-shell {
        padding-top: 42px;
      }

      .panel-card,
      .info-card,
      .faq-card,
      .statement-card,
      .soft-band,
      .principle-card {
        border-radius: 24px;
      }

      details.faq-card summary {
        padding: 18px;
      }

      .faq-answer {
        padding-left: 18px;
        padding-right: 18px;
      }
    }