/* roulang page: index */
:root{
    --bg-base:#070D16;
    --bg-panel:#0B1220;
    --bg-soft:rgba(255,255,255,.04);
    --glass-bg:linear-gradient(135deg, rgba(255,255,255,.08), rgba(255,255,255,.02));
    --glass-border:rgba(255,255,255,.08);
    --glass-border-strong:rgba(255,255,255,.14);
    --accent-cyan:#29E0FF;
    --accent-blue:#3E7BFA;
    --accent-violet:#A45CFF;
    --amber:#FFB547;
    --text-title:#E8F0FB;
    --text-body:#B4C4DA;
    --text-weak:#8096B2;
    --text-disabled:#4C607C;
    --hero-shadow:0 18px 40px rgba(0,0,0,.35);
    --card-hover:0 22px 60px rgba(0,0,0,.5), 0 0 34px rgba(41,224,255,.16);
    --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  }

  *,
  *::before,
  *::after{
    box-sizing:border-box;
  }

  html{
    scroll-behavior:smooth;
    color-scheme:dark;
  }

  body{
    margin:0;
    padding-top:112px;
    background:
      radial-gradient(1200px 560px at 80% -8%, rgba(41,224,255,.12), transparent 60%),
      radial-gradient(1000px 440px at 12% 12%, rgba(164,92,255,.08), transparent 55%),
      var(--bg-base);
    color:var(--text-body);
    font-family:var(--font-cn);
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }

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

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

  button,
  input{
    font-family:inherit;
  }

  a,
  button,
  input{
    outline:none;
  }

  a:focus-visible,
  button:focus-visible,
  input:focus-visible{
    outline:2px solid rgba(41,224,255,.8);
    outline-offset:3px;
    border-radius:6px;
  }

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

  @media (max-width:767px){
    .wrap{
      padding-inline:16px;
    }
  }

  .section{
    padding-top:96px;
    padding-bottom:96px;
  }

  @media (max-width:767px){
    .section{
      padding-top:60px;
      padding-bottom:60px;
    }
  }

  .site-header{
    position:fixed;
    top:0;
    left:0;
    right:0;
    z-index:1000;
    background:rgba(7,13,22,.82);
    backdrop-filter:blur(20px);
    -webkit-backdrop-filter:blur(20px);
    border-bottom:1px solid transparent;
    transition:border-color .3s, box-shadow .3s;
  }

  .site-header.scrolled{
    border-bottom:1px solid var(--glass-border);
    box-shadow:0 18px 50px rgba(0,0,0,.28);
  }

  .header-top{
    min-height:64px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:8px 0;
  }

  .header-bottom{
    position:relative;
    display:flex;
    align-items:center;
    border-top:1px solid rgba(255,255,255,.05);
    min-height:48px;
  }

  .channel-strip{
    display:flex;
    align-items:center;
    gap:8px;
    overflow-x:auto;
    scrollbar-width:none;
    -webkit-overflow-scrolling:touch;
    padding:7px 0;
  }

  .channel-strip::-webkit-scrollbar{
    display:none;
  }

  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
    line-height:1.2;
  }

  .brand-icon{
    position:relative;
    width:42px;
    height:42px;
    border-radius:14px;
    background:linear-gradient(145deg, var(--accent-cyan), var(--accent-blue) 60%, var(--accent-violet));
    box-shadow:0 0 18px rgba(41,224,255,.35), 0 0 42px rgba(62,123,250,.2), inset 0 0 0 1px rgba(255,255,255,.18);
    display:grid;
    place-items:center;
    flex-shrink:0;
  }

  .brand-icon svg{
    width:24px;
    height:24px;
    fill:#050A12;
  }

  .brand-name{
    display:block;
    color:var(--text-title);
    font-size:20px;
    font-weight:800;
    letter-spacing:.02em;
    white-space:nowrap;
  }

  .brand-sub{
    display:block;
    font-size:11px;
    color:var(--accent-cyan);
    letter-spacing:.2em;
    font-weight:700;
    white-space:nowrap;
  }

  .header-search{
    position:relative;
    width:240px;
    flex-shrink:0;
  }

  .header-search input{
    width:100%;
    height:40px;
    border-radius:12px;
    border:1px solid var(--glass-border);
    background:rgba(255,255,255,.055);
    padding:0 14px 0 38px;
    color:var(--text-title);
    font-size:14px;
    transition:border-color .2s, box-shadow .2s, background .2s;
  }

  .header-search svg{
    position:absolute;
    left:13px;
    top:50%;
    transform:translateY(-50%);
    width:16px;
    height:16px;
    stroke:var(--text-weak);
    pointer-events:none;
  }

  .header-search input::placeholder{
    color:var(--text-disabled);
  }

  .header-search input:focus{
    border-color:rgba(41,224,255,.5);
    background:rgba(255,255,255,.09);
    box-shadow:0 0 0 3px rgba(41,224,255,.08);
  }

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    border-radius:12px;
    border:0;
    cursor:pointer;
    font-weight:700;
    font-size:14px;
    line-height:1;
    white-space:nowrap;
    transition:transform .18s ease, box-shadow .18s ease, filter .18s ease, background .18s ease;
  }

  .btn:active{
    transform:translateY(1px);
  }

  .btn-primary{
    min-height:46px;
    padding:0 24px;
    color:#fff;
    background:linear-gradient(135deg, #29E0FF, #3E7BFA);
    box-shadow:0 0 0 1px rgba(255,255,255,.12) inset, 0 0 24px rgba(41,224,255,.35);
  }

  .btn-primary:hover{
    filter:brightness(1.08);
    box-shadow:0 0 0 1px rgba(255,255,255,.18) inset, 0 0 34px rgba(41,224,255,.5);
    transform:translateY(-1px);
  }

  .btn-primary:active{
    box-shadow:0 0 0 1px rgba(255,255,255,.1) inset, 0 0 12px rgba(41,224,255,.28);
  }

  .btn-cta-lg{
    min-height:52px;
    padding:0 32px;
    border-radius:14px;
    font-size:16px;
  }

  .btn-glass{
    min-height:46px;
    padding:0 24px;
    color:var(--text-title);
    background:rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.14);
    box-shadow:0 0 18px rgba(0,0,0,.16);
  }

  .btn-glass:hover{
    background:rgba(255,255,255,.12);
    border-color:rgba(255,255,255,.3);
    transform:translateY(-1px);
    box-shadow:0 0 24px rgba(41,224,255,.12);
  }

  .btn-glass:active{
    transform:translateY(1px);
  }

  .text-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    color:var(--accent-cyan);
    font-weight:600;
    font-size:14px;
  }

  .text-link:hover{
    filter:brightness(1.2);
  }

  .btn-small{
    min-height:34px;
    padding:0 14px;
    border-radius:10px;
    font-size:13px;
    font-weight:600;
  }

  .header-actions{
    display:flex;
    align-items:center;
    gap:12px;
    flex-shrink:0;
  }

  .icon-btn{
    display:none;
    width:42px;
    height:42px;
    border-radius:12px;
    border:1px solid var(--glass-border);
    background:rgba(255,255,255,.05);
    color:var(--text-title);
    align-items:center;
    justify-content:center;
    cursor:pointer;
    transition:background .2s, border-color .2s;
  }

  .icon-btn:hover{
    background:rgba(255,255,255,.1);
    border-color:rgba(255,255,255,.2);
  }

  .icon-btn svg{
    width:18px;
    height:18px;
    stroke:currentColor;
    fill:none;
    stroke-width:2;
    stroke-linecap:round;
  }

  .header-cta-mobile{
    display:inline-flex;
    min-height:38px;
    padding:0 16px;
    border-radius:10px;
    font-size:13px;
  }

  .nav-pill{
    position:relative;
    display:inline-flex;
    align-items:center;
    gap:8px;
    flex-shrink:0;
    min-height:34px;
    padding:0 16px;
    border-radius:999px;
    color:var(--text-body);
    font-size:14px;
    font-weight:600;
    transition:background .2s, color .2s;
  }

  .nav-pill:hover{
    color:var(--text-title);
    background:rgba(255,255,255,.06);
  }

  .nav-pill.active{
    color:#BFF4FF;
    background:linear-gradient(135deg, rgba(41,224,255,.12), rgba(62,123,250,.12));
    box-shadow:inset 0 0 0 1px rgba(41,224,255,.32), 0 0 22px rgba(41,224,255,.08);
  }

  .nav-pill.active::before{
    content:'';
    width:6px;
    height:6px;
    border-radius:50%;
    background:var(--accent-cyan);
    box-shadow:0 0 10px var(--accent-cyan);
  }

  .mobile-panel{
    display:none;
    border-top:1px solid rgba(255,255,255,.06);
    padding:12px 16px 16px;
    background:rgba(7,13,22,.96);
  }

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

  .mobile-search{
    position:relative;
    margin-bottom:14px;
  }

  .mobile-search input{
    width:100%;
    height:42px;
    border-radius:12px;
    border:1px solid var(--glass-border);
    background:rgba(255,255,255,.06);
    padding:0 14px 0 40px;
    color:var(--text-title);
  }

  .mobile-search svg{
    position:absolute;
    left:13px;
    top:50%;
    transform:translateY(-50%);
    width:17px;
    height:17px;
    stroke:var(--text-weak);
  }

  .mobile-panel-links{
    display:flex;
    flex-direction:column;
    gap:6px;
  }

  .mobile-panel-links a{
    display:flex;
    align-items:center;
    min-height:44px;
    padding:0 10px;
    border-radius:10px;
    color:var(--text-title);
    font-size:15px;
  }

  .mobile-panel-links a:hover{
    background:rgba(255,255,255,.06);
  }

  @media (max-width:767px){
    body{
      padding-top:100px;
    }
    .desktop-search{
      display:none;
    }
    .brand-name{
      font-size:18px;
    }
    .brand-icon{
      width:38px;
      height:38px;
      border-radius:12px;
    }
    .icon-btn{
      display:inline-flex;
    }
    .header-cta-desktop{
      display:none;
    }
    .header-cta-mobile{
      display:inline-flex;
    }
    .wrap{
      padding-inline:16px;
    }
    .brand-sub{
      letter-spacing:.14em;
    }
  }

  @media (min-width:768px){
    .header-cta-mobile{
      display:none;
    }
  }

  @media (min-width:1280px){
    .header-cta-desktop{
      min-height:42px;
      padding:0 18px;
    }
  }

  .hero{
    position:relative;
    overflow:hidden;
    background:
      linear-gradient(180deg, rgba(7,13,22,.7) 0%, rgba(7,13,22,.9) 100%),
      linear-gradient(90deg, rgba(7,13,22,.92) 0%, rgba(7,13,22,.55) 55%, rgba(7,13,22,.5) 100%),
      url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    padding-top:76px;
    padding-bottom:76px;
  }

  @media (max-width:1023px){
    .hero{
      padding-top:52px;
      padding-bottom:64px;
    }
  }

  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:6px 12px;
    border-radius:999px;
    border:1px solid rgba(41,224,255,.3);
    background:rgba(41,224,255,.08);
    color:#A8ECFF;
    font-size:13px;
    font-weight:600;
  }

  .eyebrow::before{
    content:'';
    width:6px;
    height:6px;
    border-radius:50%;
    background:var(--accent-cyan);
    box-shadow:0 0 10px var(--accent-cyan);
  }

  .hero h1{
    color:var(--text-title);
    font-size:clamp(36px, 5vw, 56px);
    line-height:1.18;
    font-weight:800;
    letter-spacing:.01em;
    margin:22px 0 18px;
    text-wrap:balance;
  }

  .text-gradient{
    background:linear-gradient(110deg, #6DF1FF, #29E0FF 40%, #5C9CFF);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
  }

  .hero-lead{
    max-width:580px;
    color:var(--text-body);
    font-size:17px;
    line-height:1.9;
    margin:0 0 30px;
  }

  .hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    align-items:center;
    margin:26px 0 20px;
  }

  .hero-note{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:24px;
  }

  .hero-note-item{
    display:inline-flex;
    align-items:center;
    gap:8px;
    color:var(--text-weak);
    font-size:13px;
  }

  .hero-note-item svg{
    width:14px;
    height:14px;
    stroke:var(--accent-cyan);
    fill:none;
    stroke-width:2;
    stroke-linecap:round;
    stroke-linejoin:round;
  }

  .window-panel{
    position:relative;
    max-width:560px;
    margin-left:auto;
    border-radius:22px;
    border:1px solid var(--glass-border-strong);
    background:linear-gradient(135deg, rgba(255,255,255,.09), rgba(255,255,255,.02));
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    box-shadow:0 28px 70px rgba(0,0,0,.45), 0 0 48px rgba(41,224,255,.1);
    overflow:hidden;
    transform:perspective(1200px) rotateY(-1.5deg) rotateX(.5deg);
  }

  .window-bar{
    display:flex;
    align-items:center;
    gap:8px;
    padding:12px 16px;
    border-bottom:1px solid rgba(255,255,255,.08);
  }

  .window-dot{
    width:11px;
    height:11px;
    border-radius:50%;
  }

  .window-dot:nth-child(1){
    background:#FF5F57;
  }
  .window-dot:nth-child(2){
    background:#FEBC2E;
  }
  .window-dot:nth-child(3){
    background:#28C840;
  }

  .window-address{
    flex:1;
    margin-left:8px;
    padding:7px 12px;
    border-radius:8px;
    background:rgba(255,255,255,.05);
    font-size:11px;
    color:var(--text-weak);
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
    letter-spacing:.05em;
  }

  .window-body{
    position:relative;
    aspect-ratio:16/10;
  }

  .window-body img{
    width:100%;
    height:100%;
    object-fit:cover;
  }

  .window-body::after{
    content:'';
    position:absolute;
    inset:0;
    background:linear-gradient(180deg, transparent 40%, rgba(7,13,22,.72));
    pointer-events:none;
  }

  .window-caption{
    position:absolute;
    left:18px;
    right:18px;
    bottom:16px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:14px;
    z-index:1;
  }

  .window-caption span{
    color:#F1F9FF;
    font-size:15px;
    font-weight:700;
  }

  .window-caption small{
    display:inline-flex;
    align-items:center;
    padding:4px 10px;
    border-radius:999px;
    background:rgba(41,224,255,.16);
    border:1px solid rgba(41,224,255,.35);
    color:#B6F3FF;
    font-size:12px;
    white-space:nowrap;
  }

  @media (max-width:1023px){
    .window-panel{
      margin:40px auto 0;
    }
  }

  @media (max-width:560px){
    .hero h1{
      font-size:34px;
    }
    .hero-actions .btn{
      width:100%;
    }
    .hero-note-item{
      width:100%;
    }
    .window-address{
      font-size:10px;
    }
    .window-caption span{
      font-size:13px;
    }
  }

  .trust-bar{
    border-top:1px solid rgba(255,255,255,.06);
    border-bottom:1px solid rgba(255,255,255,.06);
    background:rgba(255,255,255,.025);
  }

  .trust-grid{
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:16px;
    padding:28px 0;
  }

  .trust-item{
    display:flex;
    align-items:center;
    gap:14px;
    color:var(--text-body);
    font-size:14px;
  }

  .trust-icon{
    width:44px;
    height:44px;
    flex-shrink:0;
    border-radius:14px;
    display:grid;
    place-items:center;
    background:linear-gradient(145deg, rgba(41,224,255,.14), rgba(62,123,250,.1));
    border:1px solid rgba(41,224,255,.2);
    color:var(--accent-cyan);
  }

  .trust-icon svg{
    width:20px;
    height:20px;
    fill:none;
    stroke:currentColor;
    stroke-width:1.8;
    stroke-linecap:round;
    stroke-linejoin:round;
  }

  .trust-item strong{
    display:block;
    color:var(--text-title);
    font-size:15px;
    font-weight:700;
    line-height:1.4;
  }

  .trust-item em{
    font-style:normal;
    color:var(--text-weak);
    font-size:13px;
  }

  @media (max-width:767px){
    .trust-grid{
      grid-template-columns:1fr;
      gap:20px;
      padding:22px 0;
    }
  }

  .section-head{
    max-width:760px;
    margin-bottom:44px;
  }

  .section-title{
    position:relative;
    color:var(--text-title);
    font-size:clamp(26px, 3.2vw, 34px);
    font-weight:800;
    line-height:1.25;
    margin:0 0 12px;
    padding-left:18px;
  }

  .section-title::before{
    content:'';
    position:absolute;
    left:0;
    top:.12em;
    bottom:.12em;
    width:4px;
    border-radius:999px;
    background:linear-gradient(180deg, var(--accent-cyan), var(--accent-blue));
    box-shadow:0 0 12px rgba(41,224,255,.65);
  }

  .section-sub{
    color:var(--text-weak);
    font-size:16px;
    line-height:1.8;
    max-width:660px;
    margin:0;
  }

  .section-head-right{
    display:flex;
    align-items:flex-end;
    margin-bottom:44px;
  }

  @media (max-width:767px){
    .section-head-right{
      flex-direction:column;
      align-items:flex-start;
      gap:18px;
    }
    .section-head{
      margin-bottom:30px;
    }
    .section-head-right{
      margin-bottom:28px;
    }
  }

  .glass-card{
    position:relative;
    border-radius:16px;
    padding:24px;
    background:var(--glass-bg);
    border:1px solid var(--glass-border);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    box-shadow:var(--hero-shadow);
    transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
  }

  .glass-card::before{
    content:'';
    position:absolute;
    top:0;
    left:0;
    width:76px;
    height:1px;
    background:linear-gradient(90deg, rgba(255,255,255,.5), transparent);
    border-radius:999px;
    pointer-events:none;
  }

  .glass-card:hover{
    transform:translateY(-4px);
    border-color:rgba(41,224,255,.22);
    box-shadow:var(--card-hover);
  }

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

  .step-card{
    display:flex;
    flex-direction:column;
    min-height:300px;
  }

  .step-num{
    font-family:ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size:54px;
    font-weight:800;
    line-height:1;
    color:transparent;
    -webkit-text-stroke:1px rgba(41,224,255,.9);
    letter-spacing:-.04em;
    margin-bottom:22px;
  }

  .step-card:nth-child(2) .step-num{
    -webkit-text-stroke-color:rgba(164,92,255,.9);
  }

  .step-icon{
    width:48px;
    height:48px;
    border-radius:14px;
    display:grid;
    place-items:center;
    background:linear-gradient(145deg, rgba(41,224,255,.13), rgba(62,123,250,.1));
    border:1px solid rgba(41,224,255,.2);
    margin-bottom:16px;
    color:var(--accent-cyan);
    flex-shrink:0;
  }

  .step-icon svg{
    width:22px;
    height:22px;
    fill:none;
    stroke:currentColor;
    stroke-width:1.8;
    stroke-linecap:round;
    stroke-linejoin:round;
  }

  .step-card h3{
    color:var(--text-title);
    font-size:19px;
    font-weight:700;
    line-height:1.45;
    margin:0 0 10px;
  }

  .step-card p{
    flex:1;
    color:var(--text-body);
    font-size:14px;
    line-height:1.75;
    margin:0 0 14px;
  }

  .case-grid{
    display:grid;
    grid-template-columns:1.4fr .8fr .8fr;
    grid-template-rows:auto auto;
    gap:22px;
  }

  .case-card{
    position:relative;
    border-radius:20px;
    overflow:hidden;
    border:1px solid var(--glass-border);
    background:#0A111D;
    box-shadow:var(--hero-shadow);
    transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    display:flex;
    flex-direction:column;
  }

  .case-card:hover{
    transform:translateY(-4px);
    border-color:rgba(41,224,255,.25);
    box-shadow:var(--card-hover);
  }

  .case-media{
    position:relative;
    overflow:hidden;
    aspect-ratio:16/9;
    background:#0A111D;
  }

  .case-media img{
    width:100%;
    height:100%;
    object-fit:cover;
  }

  .case-media::after{
    content:'';
    position:absolute;
    inset:0;
    background:linear-gradient(180deg, transparent 30%, rgba(7,13,22,.85));
  }

  .case-body{
    position:relative;
    flex:1;
    display:flex;
    flex-direction:column;
    padding:14px 20px 20px;
  }

  .case-card.featured .case-body{
    padding:22px 24px 24px;
  }

  .case-body h3{
    color:var(--text-title);
    font-size:18px;
    font-weight:700;
    line-height:1.4;
    margin:0 0 8px;
  }

  .case-body p{
    color:var(--text-body);
    font-size:14px;
    line-height:1.7;
    margin:0 0 16px;
    flex:1;
  }

  .case-tags{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    margin-top:auto;
  }

  .tag{
    display:inline-flex;
    align-items:center;
    min-height:24px;
    padding:0 9px;
    border-radius:6px;
    background:rgba(41,224,255,.09);
    border:1px solid rgba(41,224,255,.2);
    color:#A7EFFF;
    font-size:12px;
    line-height:1;
    white-space:nowrap;
  }

  .tag-violet{
    background:rgba(164,92,255,.09);
    border-color:rgba(164,92,255,.25);
    color:#DCC3FF;
  }

  .case-card.featured{
    grid-row:span 2;
  }

  .case-card.featured .case-media{
    aspect-ratio:16/9;
  }

  .case-card.featured h3{
    font-size:22px;
  }

  @media (max-width:1023px){
    .case-grid{
      grid-template-columns:1fr 1fr;
    }
    .case-card.featured{
      grid-column:span 2;
      grid-row:auto;
    }
  }

  @media (max-width:767px){
    .case-grid{
      grid-template-columns:1fr;
    }
    .case-card.featured{
      grid-column:span 1;
    }
  }

  .news-grid{
    display:grid;
    grid-template-columns:1fr 1.25fr;
    gap:22px;
    align-items:stretch;
  }

  .news-feature{
    position:relative;
    min-height:100%;
    border-radius:20px;
    border:1px solid var(--glass-border);
    overflow:hidden;
    background:#0A111D;
    transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
  }

  .news-feature:hover{
    transform:translateY(-4px);
    border-color:rgba(41,224,255,.25);
    box-shadow:var(--card-hover);
  }

  .news-feature-img{
    position:relative;
    aspect-ratio:16/9;
    overflow:hidden;
  }

  .news-feature-img img{
    width:100%;
    height:100%;
    object-fit:cover;
  }

  .news-feature-img::after{
    content:'';
    position:absolute;
    inset:0;
    background:linear-gradient(180deg, transparent 38%, rgba(7,13,22,.88));
  }

  .news-feature-body{
    padding:20px 22px 22px;
    display:flex;
    flex-direction:column;
  }

  .news-meta{
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:8px;
  }

  .news-meta time{
    display:inline-flex;
    align-items:center;
    gap:5px;
    color:var(--text-weak);
    font-size:12px;
  }

  .news-meta time svg{
    width:13px;
    height:13px;
    stroke:var(--text-weak);
    fill:none;
    stroke-width:2;
    stroke-linecap:round;
  }

  .news-feature h3,
  .news-list-card h3{
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
    color:var(--text-title);
    font-size:18px;
    font-weight:700;
    line-height:1.5;
    margin:0 0 10px;
  }

  .news-excerpt{
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
    color:var(--text-body);
    font-size:14px;
    line-height:1.7;
    margin:0 0 16px;
    flex:1;
  }

  .news-list{
    display:flex;
    flex-direction:column;
    gap:14px;
    justify-content:space-between;
  }

  .news-list-card{
    display:grid;
    grid-template-columns:112px 1fr;
    gap:16px;
    align-items:center;
    border-radius:16px;
    border:1px solid var(--glass-border);
    background:var(--glass-bg);
    overflow:hidden;
    padding:12px;
    transition:transform .2s ease, border-color .2s ease, box-shadow .2s ease;
  }

  .news-list-card:hover{
    transform:translateY(-2px);
    border-color:rgba(41,224,255,.2);
    box-shadow:0 14px 36px rgba(0,0,0,.25), 0 0 18px rgba(41,224,255,.06);
  }

  .news-list-thumb{
    position:relative;
    width:112px;
    aspect-ratio:16/10;
    border-radius:12px;
    overflow:hidden;
    background:#0A111D;
  }

  .news-list-thumb img{
    width:100%;
    height:100%;
    object-fit:cover;
  }

  .news-list-info{
    min-width:0;
    display:flex;
    flex-direction:column;
  }

  .news-list-info h3{
    font-size:15px;
    margin-bottom:6px;
    -webkit-line-clamp:1;
  }

  .news-cat{
    display:inline-flex;
    align-items:center;
    width:max-content;
    min-height:20px;
    padding:0 8px;
    border-radius:6px;
    color:#A7EFFF;
    font-size:11px;
    background:rgba(41,224,255,.08);
    border:1px solid rgba(41,224,255,.16);
    margin-bottom:8px;
  }

  .news-item-link{
    display:inline-flex;
    align-items:center;
    gap:4px;
    color:var(--accent-cyan);
    font-size:12px;
    font-weight:600;
  }

  .news-item-link svg{
    width:13px;
    height:13px;
    stroke:currentColor;
    fill:none;
    stroke-width:2;
    stroke-linecap:round;
    stroke-linejoin:round;
    transition:transform .2s ease;
  }

  .news-item-link:hover svg{
    transform:translateX(3px);
  }

  .cms-empty{
    border:1px dashed rgba(255,255,255,.14);
    border-radius:20px;
    background:rgba(255,255,255,.025);
    padding:34px 24px;
    display:flex;
    flex-direction:column;
    align-items:center;
    text-align:center;
    color:var(--text-weak);
  }

  .cms-empty .cms-empty-icon{
    width:52px;
    height:52px;
    border-radius:16px;
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.08);
    display:grid;
    place-items:center;
    color:var(--accent-cyan);
    margin-bottom:14px;
  }

  .cms-empty .cms-empty-icon svg{
    width:24px;
    height:24px;
    stroke:currentColor;
    fill:none;
    stroke-width:2;
  }

  .footnote{
    margin-top:26px;
    text-align:right;
  }

  @media (max-width:1023px){
    .news-grid{
      grid-template-columns:1fr;
    }
    .news-feature + .news-list{
      gap:14px;
    }
  }

  @media (max-width:560px){
    .news-list-card{
      grid-template-columns:88px 1fr;
      gap:12px;
      padding:10px;
    }
    .news-list-thumb{
      width:88px;
    }
    .news-list-card h3{
      font-size:14px;
    }
    .footnote{
      text-align:left;
    }
  }

  .faq-wrap{
    display:flex;
    flex-direction:column;
    max-width:820px;
    margin:0 auto;
  }

  .faq-item{
    border:1px solid rgba(255,255,255,.08);
    border-radius:16px;
    backdrop-filter:blur(8px);
    background:linear-gradient(145deg, rgba(255,255,255,.03), rgba(255,255,255,.015));
    padding:0 24px;
    margin-bottom:14px;
    transition:border-color .2s ease, box-shadow .2s ease;
  }

  .faq-item.open{
    border-color:rgba(41,224,255,.25);
    box-shadow:0 0 26px rgba(41,224,255,.05);
  }

  .faq-q{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    background:none;
    border:0;
    width:100%;
    cursor:pointer;
    color:var(--text-title);
    font-size:16px;
    font-weight:700;
    line-height:1.6;
    text-align:left;
    padding:20px 0;
  }

  .faq-chevy{
    flex-shrink:0;
    width:30px;
    height:30px;
    border-radius:10px;
    display:grid;
    place-items:center;
    background:rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.1);
    color:var(--text-body);
    transition:transform .22s ease, background .22s ease, color .22s ease;
  }

  .faq-item.open .faq-chevy{
    transform:rotate(180deg);
    color:var(--accent-cyan);
    border-color:rgba(41,224,255,.3);
  }

  .faq-chevy svg{
    width:15px;
    height:15px;
    stroke:currentColor;
    fill:none;
    stroke-width:2;
    stroke-linecap:round;
    stroke-linejoin:round;
  }

  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .22s ease;
  }

  .faq-a-inner{
    padding-bottom:22px;
    color:var(--text-body);
    font-size:14px;
    line-height:1.85;
  }

  .cta-banner{
    position:relative;
    border-radius:28px;
    overflow:hidden;
    border:1px solid rgba(255,255,255,.14);
    background:
      linear-gradient(95deg, rgba(7,13,22,.97) 0%, rgba(7,13,22,.86) 50%, rgba(7,13,22,.65) 100%),
      linear-gradient(180deg, rgba(0,0,0,.15), rgba(0,0,0,.7)),
      url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    box-shadow:0 30px 80px rgba(0,0,0,.35);
    padding:58px 56px;
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:36px;
    align-items:center;
  }

  .cta-banner .eyebrow{
    margin-bottom:18px;
  }

  .cta-banner h2{
    color:#F3FAFF;
    font-size:clamp(28px, 3.4vw, 38px);
    font-weight:800;
    line-height:1.28;
    margin:0 0 14px;
    text-wrap:balance;
  }

  .cta-banner p{
    color:#C0CFE3;
    font-size:15px;
    line-height:1.85;
    margin:0 0 26px;
    max-width:480px;
  }

  .cta-form-panel{
    border-radius:22px;
    padding:28px;
    background:linear-gradient(145deg, rgba(255,255,255,.08), rgba(255,255,255,.015));
    border:1px solid rgba(255,255,255,.12);
    position:relative;
  }

  .cta-form-panel label{
    display:block;
    color:var(--text-title);
    font-size:15px;
    font-weight:700;
    margin-bottom:8px;
  }

  .cta-form-panel .tip{
    color:var(--text-weak);
    font-size:13px;
    margin:8px 0 0;
    line-height:1.6;
  }

  .cta-input-row{
    display:flex;
    gap:10px;
  }

  .cta-input-row input[type="text"],
  .cta-input-row input[type="email"]{
    flex:1;
    min-width:0;
    height:48px;
    border-radius:12px;
    border:1px solid rgba(255,255,255,.16);
    background:rgba(7,13,22,.65);
    color:#F0F7FF;
    padding:0 16px;
    font-size:14px;
    transition:border-color .2s, box-shadow .2s;
  }

  .cta-input-row input::placeholder{
    color:#61758C;
  }

  .cta-input-row input:focus{
    border-color:rgba(41,224,255,.7);
    box-shadow:0 0 0 3px rgba(41,224,255,.12);
  }

  .form-success{
    display:flex;
    align-items:center;
    gap:8px;
    border-radius:12px;
    border:1px solid rgba(41,224,255,.2);
    background:rgba(41,224,255,.09);
    padding:12px 16px;
    color:#B6F0FF;
    font-size:14px;
    margin-top:18px;
  }

  @media (max-width:1023px){
    .cta-banner{
      grid-template-columns:1fr;
      padding:42px 40px;
    }
  }

  @media (max-width:640px){
    .cta-banner{
      padding:28px 20px;
      border-radius:20px;
    }
    .cta-input-row{
      flex-direction:column;
    }
    .cta-input-row input{
      width:100%;
    }
  }

  .site-footer{
    border-top:1px solid rgba(255,255,255,.06);
    background:rgba(4,8,14,.72);
    margin-top:100px;
    padding-top:56px;
  }

  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1.3fr;
    gap:40px;
    padding-bottom:42px;
  }

  .footer-brand{
    max-width:320px;
  }

  .footer-logo{
    display:inline-flex;
    align-items:center;
    gap:10px;
    margin-bottom:14px;
  }

  .footer-logo-icon{
    width:34px;
    height:34px;
    border-radius:11px;
    background:linear-gradient(145deg, var(--accent-cyan), var(--accent-violet));
    display:grid;
    place-items:center;
    box-shadow:0 0 16px rgba(41,224,255,.28);
  }

  .footer-logo-icon svg{
    width:18px;
    height:18px;
    fill:#070D16;
  }

  .footer-logo strong{
    display:block;
    color:var(--text-title);
    font-size:17px;
    font-weight:800;
    line-height:1.2;
  }

  .footer-logo small{
    display:block;
    color:var(--accent-cyan);
    font-size:11px;
    letter-spacing:.12em;
    font-weight:700;
  }

  .footer-brand p{
    color:var(--text-weak);
    font-size:13px;
    line-height:1.8;
    margin:14px 0 0;
  }

  .footer-col h4{
    color:var(--text-title);
    font-size:14px;
    font-weight:700;
    margin:2px 0 16px;
    letter-spacing:.04em;
  }

  .footer-col ul{
    list-style:none;
    margin:0;
    padding:0;
    display:flex;
    flex-direction:column;
    gap:10px;
  }

  .footer-col a{
    color:var(--text-body);
    font-size:14px;
    transition:color .2s, padding-left .2s;
  }

  .footer-col a:hover{
    color:#A8ECFF;
    padding-left:4px;
  }

  .footer-note{
    color:var(--text-weak);
    font-size:13px;
    line-height:1.8;
  }

  .footer-note strong{
    display:block;
    color:var(--text-body);
    font-weight:700;
    margin-bottom:8px;
  }

  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.05);
    padding:22px 0;
    display:flex;
    flex-wrap:wrap;
    gap:10px 26px;
    align-items:center;
    justify-content:space-between;
    color:var(--text-disabled);
    font-size:13px;
  }

  @media (max-width:1023px){
    .footer-grid{
      grid-template-columns:1fr 1fr;
    }
  }

  @media (max-width:640px){
    .site-footer{
      margin-top:64px;
    }
    .footer-grid{
      grid-template-columns:1fr;
      gap:30px;
    }
    .footer-bottom{
      flex-direction:column;
      align-items:flex-start;
    }
  }

/* roulang page: article */
:root {
            --bg-base: #070D16;
            --bg-soft: #0B1220;
            --glass-bg: rgba(255, 255, 255, 0.05);
            --glass-bg-strong: rgba(255, 255, 255, 0.08);
            --glass-border: rgba(255, 255, 255, 0.09);
            --glass-border-light: rgba(255, 255, 255, 0.16);
            --accent-cyan: #29E0FF;
            --accent-blue: #3E7BFA;
            --accent-violet: #A45CFF;
            --amber: #FFB547;
            --title: #E8F0FB;
            --body: #B4C4DA;
            --muted: #8096B2;
            --disabled: #4C607C;
            --danger: #FF6B6B;
            --radius-card: 16px;
            --radius-panel: 22px;
            --radius-btn: 12px;
            --shadow-card: 0 18px 40px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 22px 60px rgba(0, 0, 0, 0.5), 0 0 32px rgba(41, 224, 255, 0.14);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
        }

        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font-family);
            background-color: var(--bg-base);
            background-image:
                radial-gradient(900px 380px at 15% -100px, rgba(41, 224, 255, 0.06), transparent 70%),
                radial-gradient(1000px 520px at 90% 0%, rgba(164, 92, 255, 0.08), transparent 70%),
                linear-gradient(180deg, #070D16 0%, #0B1220 45%, #070D16 100%);
            color: var(--body);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        input,
        button {
            font-family: var(--font-family);
        }
        button {
            cursor: pointer;
        }
        .wrap {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 46px;
            padding: 0 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            white-space: nowrap;
            transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
        }
        .btn:active {
            transform: translateY(1px) scale(0.98);
        }
        .btn-primary {
            color: #fff;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12), 0 0 24px rgba(41, 224, 255, 0.32);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, #55E9FF, #5A8BFC);
            box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2), 0 0 38px rgba(41, 224, 255, 0.5);
            transform: translateY(-1px);
        }
        .btn-secondary {
            color: var(--title);
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.14);
            box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.08);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.13);
            border-color: rgba(255, 255, 255, 0.28);
            transform: translateY(-1px);
            box-shadow: 0 12px 26px rgba(0, 0, 0, 0.35);
        }
        .btn-lg {
            min-height: 52px;
            padding: 0 30px;
            font-size: 16px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(7, 13, 22, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid transparent;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            border-bottom-color: rgba(255, 255, 255, 0.1);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.24);
        }
        .header-top {
            display: flex;
            align-items: center;
            gap: 20px;
            min-height: 72px;
        }
        .header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            width: 240px;
            height: 40px;
            padding: 0 12px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.12);
            transition: border-color 0.2s ease, background 0.2s ease;
            flex-shrink: 0;
        }
        .desktop-search {
            margin-left: auto;
        }
        .header-search svg,
        .mobile-search svg {
            width: 17px;
            height: 17px;
            fill: none;
            stroke: var(--muted);
            stroke-width: 2;
            stroke-linecap: round;
            flex-shrink: 0;
        }
        .header-search input,
        .mobile-search input {
            width: 100%;
            border: 0;
            background: transparent;
            outline: none;
            color: var(--title);
            font-size: 14px;
        }
        .header-search input::placeholder,
        .mobile-search input::placeholder {
            color: #61758C;
        }
        .header-search:focus-within {
            border-color: rgba(41, 224, 255, 0.5);
            background: rgba(255, 255, 255, 0.09);
            box-shadow: 0 0 0 3px rgba(41, 224, 255, 0.08);
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-right: 12px;
            flex-shrink: 0;
        }
        .brand-icon,
        .footer-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(41, 224, 255, 0.18), rgba(62, 123, 250, 0.18));
            border: 1px solid rgba(41, 224, 255, 0.4);
            box-shadow: 0 0 14px rgba(41, 224, 255, 0.15);
        }
        .brand-icon svg {
            width: 21px;
            height: 21px;
            fill: #29E0FF;
        }
        .brand-name {
            display: block;
            color: var(--title);
            font-size: 18px;
            font-weight: 700;
            letter-spacing: 0.02em;
            line-height: 1.1;
        }
        .brand-sub {
            display: block;
            color: var(--accent-cyan);
            font-size: 11px;
            letter-spacing: 0.14em;
            line-height: 1.2;
            margin-top: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: auto;
            flex-shrink: 0;
        }
        .icon-btn {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: #AEBFD3;
        }
        .icon-btn:hover {
            background: rgba(255, 255, 255, 0.11);
            color: #fff;
        }
        .icon-btn svg {
            width: 18px;
            height: 18px;
            fill: none;
            stroke: currentColor;
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .header-cta-desktop {
            min-height: 40px;
            padding: 0 18px;
            font-size: 14px;
            flex-shrink: 0;
        }
        .header-cta-mobile {
            display: none;
            min-height: 40px;
            padding: 0 16px;
            font-size: 14px;
            flex-shrink: 0;
        }

        /* Header bottom tabs */
        .header-bottom {
            height: 46px;
            display: flex;
            align-items: center;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }
        .channel-strip {
            display: flex;
            align-items: center;
            gap: 8px;
            height: 100%;
            overflow-x: auto;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
        }
        .channel-strip::-webkit-scrollbar {
            display: none;
        }
        .nav-pill {
            display: flex;
            align-items: center;
            gap: 6px;
            height: 34px;
            padding: 0 14px;
            border-radius: 999px;
            font-size: 14px;
            color: var(--body);
            border: 1px solid transparent;
            transition: all 0.2s ease;
            white-space: nowrap;
            position: relative;
            flex-shrink: 0;
        }
        .nav-pill::before {
            content: "";
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: transparent;
        }
        .nav-pill:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.07);
        }
        .nav-pill.active {
            color: var(--accent-cyan);
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(41, 224, 255, 0.22);
            box-shadow: 0 0 18px rgba(41, 224, 255, 0.16) inset;
        }
        .nav-pill.active::before {
            background: var(--accent-cyan);
            box-shadow: 0 0 7px rgba(41, 224, 255, 0.8);
        }

        /* Mobile panel */
        .mobile-panel {
            display: none;
            position: fixed;
            top: 118px;
            left: 16px;
            right: 16px;
            z-index: 80;
            background: rgba(11, 18, 32, 0.96);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 18px;
            padding: 16px;
            opacity: 0;
            transform: translateY(-8px);
            transition: opacity 0.25s ease, transform 0.25s ease;
            box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
            pointer-events: none;
        }
        .mobile-panel.open {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .mobile-search {
            display: flex;
            align-items: center;
            gap: 8px;
            height: 40px;
            padding: 0 12px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.12);
        }
        .mobile-panel-links {
            margin-top: 12px;
            display: grid;
            gap: 6px;
        }
        .mobile-panel-links a {
            display: block;
            padding: 10px 12px;
            border-radius: 11px;
            color: var(--body);
            font-size: 15px;
            transition: background 0.2s ease, color 0.2s ease;
        }
        .mobile-panel-links a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        /* ===== Article ===== */
        .page-article {
            position: relative;
            padding: 64px 0 72px;
        }
        .page-article::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.05;
            pointer-events: none;
            z-index: 0;
        }
        .article-shell {
            position: relative;
            z-index: 1;
            max-width: 1280px;
            margin: 0 auto;
        }
        .article-sheet {
            max-width: 820px;
            margin: 0 auto;
        }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--muted);
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .article-breadcrumb a {
            transition: color 0.2s ease;
        }
        .article-breadcrumb a:hover {
            color: var(--accent-cyan);
        }
        .article-breadcrumb i {
            font-style: normal;
            color: #40536F;
        }

        .article-header {
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.02));
            border: 1px solid var(--glass-border);
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            border-left: 1px solid rgba(255, 255, 255, 0.14);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-radius: var(--radius-panel);
            padding: 40px;
            box-shadow: var(--shadow-card);
        }
        .article-kicker {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--accent-cyan);
            background: rgba(41, 224, 255, 0.1);
            border-radius: 6px;
            padding: 4px 10px;
            letter-spacing: 0.04em;
            margin-bottom: 18px;
        }
        .article-h1 {
            font-size: clamp(28px, 4vw, 38px);
            line-height: 1.35;
            font-weight: 800;
            color: var(--title);
            margin: 0 0 22px 0;
            max-width: 20em;
            letter-spacing: 0.01em;
        }
        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px 22px;
            color: var(--muted);
            font-size: 13px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
        }
        .article-meta-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }
        .article-meta-item svg {
            width: 15px;
            height: 15px;
            fill: none;
            stroke: var(--muted);
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .article-abstract {
            margin-top: 26px;
            background: rgba(255, 255, 255, 0.045);
            border: 1px solid rgba(41, 224, 255, 0.13);
            border-left: 2px solid var(--accent-cyan);
            border-radius: 14px;
            padding: 18px 20px;
            color: #C7D5E8;
            font-size: 15px;
            line-height: 1.8;
        }

        .article-body-block {
            margin-top: 36px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-panel);
            padding: clamp(24px, 5vw, 48px);
            box-shadow: 0 16px 50px rgba(0, 0, 0, 0.28);
            position: relative;
            overflow: hidden;
        }
        .article-body-block::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            width: 2px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent-cyan), rgba(41, 224, 255, 0.1));
        }

        .article-content {
            color: #C7D5E8;
            font-size: 16px;
            line-height: 1.9;
            max-width: 100%;
            word-break: break-word;
        }
        .article-content p {
            margin: 0 0 1.35em;
            color: #C3D0E2;
        }
        .article-content strong {
            color: var(--title);
            font-weight: 700;
        }
        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.45;
            margin: 2em 0 0.8em;
            padding-left: 14px;
            position: relative;
        }
        .article-content h2::before {
            content: "";
            width: 4px;
            height: 22px;
            border-radius: 4px;
            background: linear-gradient(180deg, var(--accent-cyan), var(--accent-blue));
            position: absolute;
            left: 0;
            top: 6px;
            box-shadow: 0 0 12px rgba(41, 224, 255, 0.7);
        }
        .article-content h3 {
            font-size: 19px;
            font-weight: 700;
            color: #E4EDF9;
            margin: 1.7em 0 0.6em;
        }
        .article-content h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--title);
            margin: 1.4em 0 0.4em;
        }
        .article-content ul,
        .article-content ol {
            margin: 0 0 1.4em;
            padding: 0;
        }
        .article-content ul {
            list-style: none;
        }
        .article-content ul li {
            position: relative;
            padding-left: 1.6em;
            margin-bottom: 0.55em;
        }
        .article-content ul li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0.85em;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-cyan);
            box-shadow: 0 0 8px rgba(41, 224, 255, 0.8);
        }
        .article-content ol {
            counter-reset: ai-list;
        }
        .article-content ol li {
            position: relative;
            padding-left: 2em;
            margin-bottom: 0.5em;
            counter-increment: ai-list;
        }
        .article-content ol li::before {
            content: counter(ai-list, decimal-leading-zero);
            position: absolute;
            left: 0;
            top: 0.05em;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-cyan);
        }
        .article-content a {
            color: var(--accent-cyan);
            text-decoration: underline;
            text-underline-offset: 4px;
            transition: color 0.2s ease;
        }
        .article-content a:hover {
            color: #7FEFFF;
        }
        .article-content blockquote {
            margin: 1.6em 0;
            padding: 16px 20px;
            border-left: 3px solid var(--accent-violet);
            border-radius: 12px;
            background: rgba(164, 92, 255, 0.08);
            color: #D9D2F5;
        }
        .article-content code {
            font-family: ui-monospace, "Cascadia Code", "SF Mono", monospace;
            background: rgba(255, 255, 255, 0.12);
            color: #9CECFF;
            border-radius: 6px;
            padding: 2px 6px;
            font-size: 0.9em;
        }
        .article-content pre {
            background: #0A0F1B;
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 14px;
            padding: 20px;
            overflow-x: auto;
            margin: 1.8em 0;
        }
        .article-content pre code {
            background: none;
            padding: 0;
            color: #C5E8F4;
        }
        .article-content img {
            border-radius: 14px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 14px 38px rgba(0, 0, 0, 0.32);
            margin: 1.6em 0;
        }
        .article-content iframe,
        .article-content video {
            max-width: 100%;
            border-radius: 14px;
            border: 0;
            margin: 1.4em 0;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.6em 0;
            font-size: 14px;
        }
        .article-content th,
        .article-content td {
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 10px 12px;
            text-align: left;
            color: #C3D0E2;
        }
        .article-content th {
            background: rgba(255, 255, 255, 0.08);
            color: #E4EDF9;
        }

        .article-end-nav {
            margin-top: 30px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 22px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .article-end-links {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .article-empty {
            text-align: center;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 22px;
            padding: 80px 32px;
            max-width: 780px;
            margin: 84px auto 0;
            backdrop-filter: blur(12px);
        }
        .article-empty-icon {
            width: 58px;
            height: 58px;
            margin: 0 auto 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(41, 224, 255, 0.08);
            border: 1px solid rgba(41, 224, 255, 0.35);
            color: var(--accent-cyan);
            font-size: 26px;
        }
        .article-empty h2 {
            color: var(--title);
            font-size: 26px;
            margin: 0 0 10px;
        }
        .article-empty p {
            color: var(--muted);
            margin: 0 0 24px;
        }

        /* ===== Section heading ===== */
        .section-heading {
            font-size: 26px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.4;
            margin: 0 0 6px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .section-heading::before {
            content: "";
            width: 4px;
            height: 24px;
            border-radius: 999px;
            background: linear-gradient(180deg, var(--accent-cyan), var(--accent-blue));
            box-shadow: 0 0 12px rgba(41, 224, 255, 0.4);
            flex-shrink: 0;
        }
        .section-heading-desc {
            color: var(--muted);
            font-size: 14px;
            margin-bottom: 0;
        }

        /* ===== Related ===== */
        .related-section {
            margin-top: 88px;
        }
        .related-top {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 26px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 22px;
        }
        .rel-card {
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
            border: 1px solid var(--glass-border);
            border-top: 1px solid rgba(255, 255, 255, 0.16);
            border-left: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 18px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            backdrop-filter: blur(12px);
            transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
            box-shadow: 0 14px 34px rgba(0, 0, 0, 0.24);
        }
        .rel-card:hover {
            transform: translateY(-4px);
            border-color: rgba(41, 224, 255, 0.25);
            box-shadow: 0 24px 54px rgba(0, 0, 0, 0.38), 0 0 26px rgba(41, 224, 255, 0.1);
        }
        .rel-cover {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #0A101A;
        }
        .rel-cover svg {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .rel-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.55s ease;
        }
        .rel-card:hover .rel-cover img {
            transform: scale(1.04);
        }
        .rel-tag {
            position: absolute;
            left: 12px;
            top: 12px;
            background: rgba(7, 13, 22, 0.72);
            border: 1px solid rgba(41, 224, 255, 0.35);
            color: var(--accent-cyan);
            font-size: 12px;
            line-height: 1;
            padding: 6px 10px;
            border-radius: 7px;
            backdrop-filter: blur(8px);
        }
        .rel-content {
            padding: 18px 18px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .rel-content h3 {
            color: var(--title);
            font-size: 17px;
            line-height: 1.55;
            font-weight: 700;
            margin: 0 0 8px;
            transition: color 0.2s ease;
        }
        .rel-card:hover .rel-content h3 {
            color: #fff;
        }
        .rel-content p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.7;
            margin: 0 0 16px;
        }
        .rel-link {
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-cyan);
            transition: gap 0.2s ease;
        }
        .rel-link:hover {
            gap: 12px;
        }
        .rel-link::after {
            content: "→";
            transition: transform 0.2s ease;
        }

        /* ===== CTA band ===== */
        .cta-band {
            position: relative;
            margin-top: 84px;
            border-radius: 24px;
            overflow: hidden;
            padding: clamp(36px, 7vw, 72px);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            border: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 30px;
            flex-wrap: wrap;
            scroll-margin-top: 120px;
        }
        .cta-band::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(7, 13, 22, 0.96) 0%, rgba(7, 13, 22, 0.88) 55%, rgba(7, 13, 22, 0.45) 100%);
        }
        .cta-band::after {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(600px 220px at 80% 0%, rgba(41, 224, 255, 0.12), transparent 70%);
        }
        .cta-content,
        .cta-form-box {
            position: relative;
            z-index: 1;
        }
        .cta-content {
            max-width: 520px;
        }
        .cta-content h2 {
            color: #fff;
            font-size: clamp(25px, 4vw, 34px);
            line-height: 1.4;
            margin: 0 0 12px;
            font-weight: 750;
        }
        .cta-content p {
            color: #B5C6DE;
            font-size: 15px;
            margin: 0;
            line-height: 1.8;
        }
        .cta-content .cta-points {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 18px;
        }
        .cta-point {
            font-size: 13px;
            color: #CFE9FF;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            padding: 6px 12px;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .cta-point::before {
            content: "";
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--accent-cyan);
            box-shadow: 0 0 7px rgba(41, 224, 255, 0.9);
        }
        .cta-form-box {
            width: 390px;
            max-width: 100%;
            background: rgba(10, 18, 30, 0.6);
            backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.16);
            border-radius: 20px;
            padding: 24px;
            box-shadow: 0 20px 70px rgba(0, 0, 0, 0.48);
        }
        .leadform label {
            display: block;
            color: var(--title);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .leadform-input-row {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 8px;
            margin-bottom: 12px;
        }
        .leadform input[type="text"],
        .leadform input[type="email"] {
            width: 100%;
            height: 46px;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 11px;
            padding: 0 14px;
            color: var(--title);
            font-size: 14px;
            outline: none;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .leadform input::placeholder {
            color: #61758C;
        }
        .leadform input:focus {
            border-color: rgba(41, 224, 255, 0.55);
            box-shadow: 0 0 0 3px rgba(41, 224, 255, 0.12);
        }
        .note-sm {
            color: var(--muted);
            font-size: 12px;
            margin-top: 8px;
        }

        /* ===== Footer ===== */
        .site-footer {
            position: relative;
            background: rgba(6, 11, 18, 0.96);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 54px 0 0;
            margin-top: auto;
        }
        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: min(900px, 80%);
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(41, 224, 255, 0.5), transparent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2.2fr 0.8fr 0.8fr 1fr;
            gap: 40px;
            padding-bottom: 42px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 9px;
        }
        .footer-logo-icon svg {
            width: 19px;
            height: 19px;
            fill: var(--accent-cyan);
        }
        .footer-logo strong {
            display: block;
            color: var(--title);
            font-size: 17px;
            line-height: 1.15;
        }
        .footer-logo small {
            display: block;
            color: var(--accent-cyan);
            font-size: 10px;
            letter-spacing: 0.1em;
            margin-top: 2px;
        }
        .footer-brand p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
            margin: 16px 0 0;
            max-width: 340px;
        }
        .footer-col h4,
        .footer-note strong {
            color: var(--title);
            font-size: 15px;
            font-weight: 700;
            margin: 7px 0 16px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: grid;
            gap: 8px;
        }
        .footer-col a {
            color: var(--muted);
            font-size: 14px;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }
        .footer-col a:hover {
            color: var(--accent-cyan);
            padding-left: 3px;
        }
        .footer-note {
            background: rgba(255, 255, 255, 0.035);
            border: 1px solid rgba(255, 255, 255, 0.07);
            border-radius: 15px;
            padding: 18px;
            font-size: 13px;
            color: var(--muted);
            line-height: 1.8;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 0 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px;
            color: #5D7490;
            flex-wrap: wrap;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023.98px) {
            .wrap {
                padding-left: 24px;
                padding-right: 24px;
            }
            .desktop-search {
                display: none;
            }
            .header-search.desktop-search {
                display: none;
            }
            .header-cta-desktop {
                display: none !important;
            }
            .header-cta-mobile {
                display: inline-flex;
            }
            .icon-btn {
                display: inline-flex;
            }
            .header-bottom {
                height: 48px;
            }
            .mobile-panel {
                display: block;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .related-grid {
                grid-template-columns: repeat(2, minmax(0, 1fr));
            }
        }
        @media (max-width: 767.98px) {
            .wrap {
                padding-left: 16px;
                padding-right: 16px;
            }
            .header-top {
                min-height: 62px;
                gap: 6px;
            }
            .brand-icon {
                width: 32px;
                height: 32px;
            }
            .brand-name {
                font-size: 17px;
            }
            .brand-sub {
                font-size: 10px;
            }
            .header-cta-mobile {
                min-height: 38px;
                padding: 0 14px;
                font-size: 13px;
            }
            .header-top {
                gap: 8px;
            }
            .site-header {
                top: 0;
            }
            .page-article {
                padding: 36px 0 50px;
            }
            .article-breadcrumb {
                font-size: 12px;
                margin-bottom: 18px;
                gap: 7px;
            }
            .article-header {
                padding: 24px 20px;
                border-radius: 18px;
            }
            .article-h1 {
                font-size: 25px;
                line-height: 1.45;
                margin-bottom: 16px;
            }
            .article-abstract {
                padding: 14px 16px;
                font-size: 14px;
            }
            .article-body-block {
                padding: 18px 16px;
                margin-top: 22px;
                border-radius: 18px;
            }
            .article-content {
                font-size: 15px;
                line-height: 1.85;
            }
            .article-content h2 {
                font-size: 21px;
            }
            .article-content h3 {
                font-size: 18px;
            }
            .article-end-nav {
                flex-direction: column;
                align-items: stretch;
            }
            .article-end-links {
                flex-direction: column;
                align-items: stretch;
            }
            .article-end-links .btn {
                width: 100%;
            }
            .related-section {
                margin-top: 58px;
            }
            .related-top {
                flex-direction: column;
                align-items: flex-start;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .cta-band {
                margin-top: 54px;
                padding: 28px 20px;
                align-items: stretch;
                flex-direction: column;
                border-radius: 18px;
            }
            .cta-form-box {
                width: 100%;
                padding: 18px;
            }
            .leadform-input-row {
                grid-template-columns: 1fr;
            }
            .leadform-input-row .btn {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                padding-bottom: 28px;
            }
            .footer-note {
                padding: 15px;
            }
            .footer-bottom {
                flex-direction: column;
                justify-content: center;
                text-align: center;
            }
        }
        @media (max-width: 420px) {
            .brand-name {
                max-width: 80px;
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
            }
            .header-actions {
                gap: 5px;
            }
            .header-cta-mobile {
                display: none;
            }
            .mobile-panel {
                top: 104px;
            }
        }

/* roulang page: category1 */
:root {
  --bg-base: #060B14;
  --bg-soft: #0B1220;
  --accent-cyan: #29E0FF;
  --accent-blue: #3E7BFA;
  --accent-violet: #A45CFF;
  --glass-bg: rgba(255, 255, 255, .05);
  --glass-bg-strong: rgba(255, 255, 255, .08);
  --glass-border: rgba(255, 255, 255, .09);
  --text-title: #E8F0FB;
  --text-body: #B4C4DA;
  --text-weak: #8096B2;
  --radius-lg: 20px;
  --radius-md: 14px;
  --shadow-card: 0 18px 48px rgba(0, 0, 0, .38);
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
  color: var(--text-body);
  line-height: 1.75;
  background:
    radial-gradient(1000px 420px at 80% -10%, rgba(41, 224, 255, .07), transparent 60%),
    radial-gradient(760px 420px at 8% 12%, rgba(164, 92, 255, .08), transparent 60%),
    linear-gradient(180deg, #070D16 0%, #0B1220 100%);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
}
h1, h2, h3, h4, h5 {
  color: var(--text-title);
  line-height: 1.25;
  letter-spacing: .01em;
}
h1 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
}
h2 {
  font-size: clamp(26px, 3.4vw, 34px);
  font-weight: 700;
}
h3 {
  font-size: 19px;
  font-weight: 600;
}
p {
  line-height: 1.75;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease, box-shadow .2s ease;
}
img {
  max-width: 100%;
  display: block;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}
input {
  font-family: inherit;
}
:focus-visible {
  outline: 2px solid rgba(41, 224, 255, .7);
  outline-offset: 3px;
  border-radius: 6px;
}
::selection {
  background: rgba(41, 224, 255, .25);
  color: #fff;
}
::-webkit-scrollbar {
  width: 6px;
  height: 4px;
}
::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, .02);
}
::-webkit-scrollbar-thumb {
  background: rgba(164, 92, 255, .35);
  border-radius: 100px;
}

.glass-card {
  position: relative;
  background: linear-gradient(135deg, rgba(255, 255, 255, .08), rgba(255, 255, 255, .02));
  border: 1px solid rgba(255, 255, 255, .08);
  border-top-color: rgba(255, 255, 255, .18);
  border-left-color: rgba(255, 255, 255, .13);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}
.glass-panel {
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .08);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-radius: 18px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
  white-space: nowrap;
  transition: all .25s ease;
}
.btn-primary {
  background: linear-gradient(135deg, #29E0FF, #3E7BFA);
  color: #fff;
  box-shadow: 0 0 24px rgba(41, 224, 255, .3), inset 0 0 0 1px rgba(255, 255, 255, .12);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 38px rgba(41, 224, 255, .45), inset 0 0 0 1px rgba(255, 255, 255, .2);
  filter: brightness(1.07);
}
.btn-primary:active {
  transform: translateY(1px);
  box-shadow: 0 0 12px rgba(41, 224, 255, .25), inset 0 0 0 1px rgba(255, 255, 255, .1);
}
.btn-ghost {
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .14);
  color: var(--text-title);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, .12);
  border-color: rgba(255, 255, 255, .3);
  transform: translateY(-2px);
}
.btn-ghost:active {
  transform: translateY(1px);
}
.btn lg {
 padding: 0 32px;
 min-height: 52px;
}
.btn-lg {
  min-height: 52px;
  padding: 0 32px;
  font-size: 16px;
  border-radius: 14px;
}
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  color: #29E0FF;
  text-transform: uppercase;
}
.section-kicker::before {
  content: "";
  width: 4px;
  height: 18px;
  border-radius: 100px;
  background: linear-gradient(180deg, #29E0FF, #A45CFF);
  box-shadow: 0 0 14px rgba(41, 224, 255, .45);
}
.chip {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 10px;
  border-radius: 4px;
  background: rgba(41, 224, 255, .1);
  color: #6FE8FF;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
  border: 1px solid rgba(41, 224, 255, .12);
}
.chip-violet {
  background: rgba(164, 92, 255, .1);
  color: #C9A6FF;
  border-color: rgba(164, 92, 255, .16);
}
.neon-line {
  width: 4px;
  border-radius: 40px;
  background: linear-gradient(180deg, #29E0FF, #A45CFF);
  box-shadow: 0 0 12px rgba(41, 224, 255, .5);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(6, 11, 20, .82);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  border-bottom-color: rgba(255, 255, 255, .1);
}
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
  position: relative;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(41, 224, 255, .18), rgba(164, 92, 255, .15));
  border: 1px solid rgba(41, 224, 255, .25);
}
.brand-icon svg {
  width: 22px;
  height: 22px;
  fill: #29E0FF;
}
.brand-name {
  display: block;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: .04em;
}
.brand-sub {
  display: block;
  color: #7C90AC;
  font-size: 10px;
  font-weight: 400;
  letter-spacing: .35em;
}
.desktop-search {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 240px;
  height: 38px;
  padding: 0 12px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 999px;
}
.desktop-search svg,
.mobile-search svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: #7C90AC;
  stroke-width: 2;
  stroke-linecap: round;
}
.desktop-search input,
.mobile-search input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  color: #E8F0FB;
  font-size: 13px;
}
.desktop-search input::placeholder,
.mobile-search input::placeholder {
  color: #61758C;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.icon-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .08);
  color: #C6D3E6;
}
.icon-btn svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}
.icon-btn:hover {
  background: rgba(255, 255, 255, .1);
  border-color: rgba(41, 224, 255, .2);
}
.header-cta-desktop {
  display: inline-flex;
  min-height: 36px;
  padding: 0 18px;
  font-size: 14px;
}
.header-cta-mobile {
  display: none;
  min-height: 34px;
  padding: 0 14px;
  font-size: 13px;
}
.header-bottom {
  background: transparent;
  border-top: 1px solid rgba(255, 255, 255, .04);
}
.channel-strip {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  white-space: nowrap;
}
.channel-strip::-webkit-scrollbar {
  display: none;
}
.nav-pill {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 6px 17px;
  margin: 7px 0;
  border-radius: 999px;
  color: #B4C4DA;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
}
.nav-pill:hover {
  color: #fff;
  background: rgba(255, 255, 255, .06);
}
.nav-pill.active {
  color: #E8F0FB;
  background: rgba(41, 224, 255, .08);
  border-color: rgba(41, 224, 255, .18);
  box-shadow: 0 0 16px rgba(41, 224, 255, .1);
}
.nav-pill.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -7px;
  width: 4px;
  height: 4px;
  margin-left: -2px;
  border-radius: 50%;
  background: #29E0FF;
  box-shadow: 0 0 10px #29E0FF;
}
.mobile-panel {
  display: none;
  padding: 12px 0 18px;
  border-top: 1px solid rgba(255, 255, 255, .06);
}
.mobile-panel.open {
  display: block;
}
.mobile-search {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 14px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 12px;
}
.mobile-panel-links {
  display: grid;
  gap: 6px;
  margin-top: 12px;
}
.mobile-panel-links a {
  padding: 10px 4px;
  color: #B4C4DA;
  border-bottom: 1px solid rgba(255, 255, 255, .04);
  font-size: 15px;
}
.mobile-panel-links a:hover {
  color: #fff;
  padding-left: 8px;
}
@media (max-width: 767px) {
  .desktop-search {
    display: none;
  }
  .icon-btn {
    display: inline-flex;
  }
  .header-cta-desktop {
    display: none;
  }
  .header-cta-mobile {
    display: inline-flex;
  }
}

.site-footer {
  background: rgba(5, 9, 15, .92);
  border-top: 1px solid rgba(255, 255, 255, .06);
  margin-top: 0;
  padding-top: 60px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.25fr;
  gap: 40px;
  padding-bottom: 44px;
}
.footer-brand .footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 16px;
}
.footer-logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(41, 224, 255, .12);
  border: 1px solid rgba(41, 224, 255, .2);
}
.footer-logo-icon svg {
  width: 19px;
  height: 19px;
  fill: #29E0FF;
}
.footer-logo strong {
  display: block;
  color: #E8F0FB;
  font-size: 16px;
  line-height: 1.2;
}
.footer-logo small {
  display: block;
  color: #7C90AC;
  font-size: 10px;
  letter-spacing: .3em;
}
.footer-brand p {
  font-size: 13px;
  line-height: 1.8;
  color: #7C90AC;
  max-width: 380px;
}
.footer-col h4 {
  color: #E8F0FB;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col ul {
  list-style: none;
}
.footer-col li {
  margin-bottom: 10px;
}
.footer-col a {
  color: #7C90AC;
  font-size: 13px;
}
.footer-col a:hover {
  color: #29E0FF;
}
.footer-note {
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .07);
  border-radius: 14px;
  padding: 20px;
  color: #B4C4DA;
  font-size: 13px;
  line-height: 1.8;
}
.footer-note strong {
  display: block;
  color: #E8F0FB;
  font-size: 14px;
  margin-bottom: 8px;
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 22px 0;
  border-top: 1px solid rgba(255, 255, 255, .05);
  color: #5D718C;
  font-size: 13px;
}
@media (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 639px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* 分类 Hero */
.cat-hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  background-image:
    linear-gradient(180deg, rgba(6, 11, 20, .45) 0%, rgba(6, 11, 20, .82) 85%, #0B1220 100%),
    linear-gradient(90deg, rgba(6, 11, 20, .75) 0%, rgba(6, 11, 20, .25) 55%, rgba(6, 11, 20, .35) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size: cover;
  background-position: center;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, .06);
}
.cat-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent 0%, rgba(41, 224, 255, .06) 48%, transparent 100%),
    radial-gradient(420px 220px at 78% 60%, rgba(164, 92, 255, .12), transparent 70%);
  pointer-events: none;
}
.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 680px;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .1);
  padding: 6px 14px;
  border-radius: 999px;
  color: #9FDCFF;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .05em;
  margin-bottom: 22px;
}
.hero-kicker::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #29E0FF;
  box-shadow: 0 0 10px #29E0FF;
}
.cat-hero h1 {
  margin-bottom: 22px;
}
.hero-gradient-text {
  background: linear-gradient(100deg, #29E0FF, #A45CFF);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lead {
  font-size: 17px;
  color: #B4C4DA;
  max-width: 600px;
  margin-bottom: 26px;
}
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 34px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.hero-panel-wrap {
  position: relative;
  z-index: 2;
  animation: floatPanel 5s ease-in-out infinite;
}
@keyframes floatPanel {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.window-card {
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .5), 0 0 0 1px rgba(255, 255, 255, .1);
  background: rgba(10, 18, 28, .9);
}
.window-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(255, 255, 255, .05);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.window-dots {
  display: flex;
  gap: 6px;
}
.window-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.window-dots span:nth-child(1) { background: #FF5F57; }
.window-dots span:nth-child(2) { background: #FEBC2E; }
.window-dots span:nth-child(3) { background: #28C840; }
.window-url {
  font-size: 12px;
  color: #8096B2;
  background: rgba(255, 255, 255, .05);
  border-radius: 999px;
  padding: 4px 14px;
}
.window-body {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.window-body img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.window-overlay {
  position: absolute;
  inset: auto 0 0 0;
  padding: 24px;
  background: linear-gradient(180deg, transparent, rgba(6, 11, 20, .88));
}
.panel-label {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
}

/* 信任横条 */
.trust-strip {
  position: relative;
  z-index: 3;
  margin-top: -1px;
  background: rgba(11, 18, 32, .72);
  border-bottom: 1px solid rgba(255, 255, 255, .07);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 28px 0;
}
.trust-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 6px 0;
}
.trust-icon {
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(41, 224, 255, .08);
  border: 1px solid rgba(41, 224, 255, .13);
  color: #29E0FF;
}
.trust-icon svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.trust-text strong {
  display: block;
  color: #E8F0FB;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 2px;
}
.trust-text p {
  color: #8096B2;
  font-size: 13px;
  line-height: 1.5;
}
@media (max-width: 767px) {
  .trust-grid {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 20px 0;
  }
  .trust-item {
    padding: 8px 0;
  }
}

/* Features */
.features-section {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .015), transparent 16%),
    transparent;
}
.feature-card {
  padding: 30px 28px;
  height: 100%;
  transition: all .25s ease;
}
.feature-card:hover {
  transform: translateY(-5px);
  border-color: rgba(41, 224, 255, .2);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .45), 0 0 0 1px rgba(41, 224, 255, .05);
}
.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(41, 224, 255, .12), rgba(164, 92, 255, .1));
  border: 1px solid rgba(41, 224, 255, .16);
  margin-bottom: 22px;
}
.feature-icon svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: #29E0FF;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.feature-card h3 {
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 14px;
  color: #A8B9CE;
  line-height: 1.8;
}

/* highlight cards */
.highlight-card {
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, .08);
  background: linear-gradient(135deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .02));
  box-shadow: 0 18px 48px rgba(0, 0, 0, .3);
  transition: transform .25s ease, box-shadow .25s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.highlight-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 22px 60px rgba(0, 0, 0, .45), 0 0 30px rgba(41, 224, 255, .07);
}
.highlight-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.highlight-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}
.highlight-card:hover .highlight-cover img {
  transform: scale(1.04);
}
.highlight-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(6, 11, 20, .5));
}
.hl-tag {
  position: absolute;
  left: 15px;
  top: 15px;
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(6, 11, 20, .74);
  border: 1px solid rgba(255, 255, 255, .16);
  color: #DFF3FF;
  font-size: 12px;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  z-index: 2;
}
.highlight-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.highlight-body h3 {
  font-size: 18px;
}
.highlight-body p {
  font-size: 14px;
  color: #A8B9CE;
  flex: 1;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: #29E0FF;
  font-weight: 500;
  margin-top: 6px;
}
.card-link:hover {
  color: #8BF0FF;
}
.card-link svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}

/* Steps */
.steps-section {
  background: linear-gradient(180deg, rgba(255, 255, 255, .03), rgba(255, 255, 255, .015));
  border-top: 1px solid rgba(255, 255, 255, .05);
  border-bottom: 1px solid rgba(255, 255, 255, .05);
}
.step-item {
  position: relative;
  padding: 26px 22px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 16px;
  height: 100%;
  transition: all .25s ease;
}
.step-item:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, .06);
  border-color: rgba(41, 224, 255, .18);
}
.step-num {
  display: block;
  font-family: "Orbitron", "PingFang SC", sans-serif;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .05em;
  color: rgba(41, 224, 255, .7);
  margin-bottom: 16px;
}
.step-item h3 {
  font-size: 17px;
  margin-bottom: 8px;
}
.step-item p {
  font-size: 14px;
  color: #A8B9CE;
}
.step-line {
  position: absolute;
  top: 16px;
  right: 18px;
  color: rgba(164, 92, 255, .55);
  font-size: 22px;
  pointer-events: none;
}

/* Scenes */
.scene-layout {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 44px;
  align-items: center;
}
.scene-visual {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .1);
  box-shadow: 0 26px 70px rgba(0, 0, 0, .45);
}
.scene-visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.scene-visual .sentence {
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 18px;
  padding: 14px 18px;
  border-radius: 12px;
  background: rgba(6, 11, 20, .74);
  border: 1px solid rgba(255, 255, 255, .1);
  color: #DCEBFF;
  font-size: 14px;
  line-height: 1.6;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.scene-list {
  display: grid;
  gap: 12px;
}
.scene-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 18px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .07);
  border-radius: 14px;
  transition: all .2s ease;
}
.scene-item:hover {
  background: rgba(255, 255, 255, .07);
  border-color: rgba(41, 224, 255, .2);
  transform: translateX(4px);
}
.scene-item .scene-dot {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, #29E0FF, #A45CFF);
  box-shadow: 0 0 12px rgba(41, 224, 255, .5);
}
.scene-item strong {
  display: block;
  color: #E8F0FB;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 3px;
}
.scene-item span {
  color: #8FA4BB;
  font-size: 13px;
  line-height: 1.65;
}
@media (max-width: 1023px) {
  .scene-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}
@media (min-width: 1024px) {
  .hero-panel-wrap {
    margin-left: 22px;
  }
}

/* FAQ */
.faq-wrap {
  max-width: 760px;
  margin: 0 auto;
}
.faq-item {
  background: rgba(255, 255, 255, .035);
  border: 1px solid rgba(255, 255, 255, .07);
  border-radius: 14px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .2s ease, background .2s ease;
}
.faq-item.active {
  background: rgba(255, 255, 255, .06);
  border-color: rgba(41, 224, 255, .16);
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  text-align: left;
  color: #DCEBFF;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
}
.faq-q .faq-icon {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .12);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .25s ease, border-color .25s ease, color .25s ease;
  color: #5D718C;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
  color: #29E0FF;
  border-color: rgba(41, 224, 255, .3);
}
.faq-icon svg {
  width: 13px;
  height: 13px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .28s ease;
  color: #A8B9CE;
  font-size: 14px;
  line-height: 1.85;
}
.faq-a-inner {
  padding: 0 22px 20px;
}

/* CTA */
.footer-cta {
  position: relative;
  background:
    linear-gradient(90deg, rgba(6, 11, 20, .92) 0%, rgba(6, 11, 20, .6) 55%, rgba(6, 11, 20, .86) 100%),
    url("/assets/images/backpic/back-3.webp") center / cover no-repeat;
  border-top: 1px solid rgba(255, 255, 255, .08);
  border-bottom: none;
}
.cta-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding-top: 72px;
  padding-bottom: 72px;
}
.cta-copy h2 {
  color: #F0F9FF;
  max-width: 640px;
}
.cta-copy p {
  color: #C5D3E6;
  margin-top: 14px;
  max-width: 640px;
}
.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  flex-shrink: 0;
}
@media (max-width: 767px) {
  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .cta-actions {
    width: 100%;
    align-items: stretch;
    flex-direction: row;
    flex-wrap: wrap;
  }
}

/* roulang page: category2 */
:root {
    --bg-base: #060B14;
    --bg-deep: #0B1220;
    --accent-cyan: #29E0FF;
    --cobalt: #3E7BFA;
    --accent-violet: #A45CFF;
    --star: #FFB547;
    --glass-bg: rgba(255, 255, 255, .05);
    --glass-bg-strong: rgba(255, 255, 255, .08);
    --glass-border: rgba(255, 255, 255, .09);
    --glass-inner: rgba(255, 255, 255, .16);
    --text-title: #E8F0FB;
    --text-body: #B4C4DA;
    --text-weak: #8096B2;
    --text-faint: #4C607C;
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 22px;
    --shadow-card: 0 18px 40px rgba(0, 0, 0, .35);
    --shadow-hover: 0 24px 60px rgba(0, 0, 0, .48), 0 0 30px rgba(41, 224, 255, .16);
  }

  * {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.75;
    color: var(--text-body);
    background:
      radial-gradient(circle at 15% 5%, rgba(62, 123, 250, .13), transparent 34%),
      radial-gradient(circle at 85% 18%, rgba(164, 92, 255, .08), transparent 30%),
      linear-gradient(180deg, #070D16 0%, #0B1220 100%);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
  }

  body,
  button,
  input {
    font-family: inherit;
  }

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

  a {
    color: inherit;
    text-decoration: none;
  }

  button {
    cursor: pointer;
    border: 0;
    background: none;
  }

  input {
    outline: none;
  }

  .wrap {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  .module {
    padding: 92px 0 96px;
  }

  @media (max-width: 768px) {
    .module {
      padding: 62px 0 58px;
    }
    .wrap {
      padding-left: 16px;
      padding-right: 16px;
    }
  }

  .section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 42px;
  }

  .section-head h2 {
    margin: 0;
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: clamp(26px, 3.4vw, 34px);
    font-weight: 700;
    letter-spacing: .01em;
    color: var(--text-title);
    line-height: 1.3;
  }

  .section-head h2::before {
    content: "";
    width: 4px;
    height: 24px;
    border-radius: 999px;
    background: linear-gradient(180deg, var(--accent-cyan), var(--cobalt));
    box-shadow: 0 0 18px rgba(41, 224, 255, .8);
    flex: none;
  }

  .section-head .section-kicker {
    display: block;
    font-size: 13px;
    color: var(--text-weak);
    font-weight: 400;
    letter-spacing: .06em;
    margin-top: 6px;
    margin-left: 18px;
    text-transform: none;
  }

  .section-sub {
    max-width: 760px;
    margin-top: 14px;
    color: var(--text-weak);
    font-size: 15px;
    line-height: 1.8;
  }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border-radius: 999px;
    border: 1px solid rgba(41, 224, 255, .3);
    background: rgba(41, 224, 255, .07);
    color: #8CEAFF;
    font-size: 13px;
    letter-spacing: .04em;
  }

  .eyebrow i {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-cyan);
    box-shadow: 0 0 12px var(--accent-cyan);
  }

  .glass-card {
    position: relative;
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    border-left: 1px solid rgba(255, 255, 255, .18);
    border-top: 1px solid rgba(255, 255, 255, .16);
    background: linear-gradient(135deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .02));
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }

  .glass-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
  }

  /* 顶部双层导航 */
  .site-header {
    position: relative;
    z-index: 70;
    background: rgba(7, 13, 22, .9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: border-color .3s ease;
  }

  .site-header.scrolled {
    border-bottom-color: rgba(255, 255, 255, .1);
  }

  .header-top {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, .07);
    background: rgba(7, 13, 22, .66);
  }

  .header-top .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex: none;
    margin-right: auto;
  }

  .brand-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    background: linear-gradient(135deg, #29E0FF, #3E7BFA 72%);
    box-shadow: 0 0 20px rgba(41, 224, 255, .45), inset 0 0 10px rgba(255, 255, 255, .18);
  }

  .brand-icon svg {
    width: 24px;
    height: 24px;
    fill: #06101C;
  }

  .brand-name {
    display: block;
    font-size: 19px;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-title);
    letter-spacing: .02em;
  }

  .brand-sub {
    display: block;
    font-size: 11px;
    letter-spacing: .12em;
    color: var(--accent-cyan);
    font-weight: 500;
    margin-top: 1px;
  }

  .desktop-search {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 240px;
    height: 42px;
    padding: 0 14px;
    border-radius: 999px;
    border: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, .045);
    transition: border-color .2s ease;
  }

  .desktop-search svg,
  .mobile-search svg,
  .search-icon svg {
    width: 18px;
    height: 18px;
    stroke: #8096B2;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
  }

  .desktop-search input {
    width: 100%;
    border: 0;
    background: transparent;
    color: #D6E2F0;
    font-size: 14px;
  }

  .desktop-search input::placeholder,
  .mobile-search input::placeholder {
    color: #61758C;
  }

  .desktop-search:focus-within {
    border-color: rgba(41, 224, 255, .55);
    box-shadow: 0 0 0 3px rgba(41, 224, 255, .12);
  }

  .header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 44px;
    padding: 0 22px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
    transition: filter .2s ease, transform .2s ease, box-shadow .2s ease, background .2s ease;
  }

  .btn-primary {
    color: #fff;
    background: linear-gradient(135deg, #27DDFC, #3E7BFA);
    box-shadow: 0 0 0 1px rgba(255, 255, 255, .12) inset, 0 0 24px rgba(41, 224, 255, .26);
  }

  .btn-primary:hover {
    filter: brightness(1.08);
    box-shadow: 0 0 0 1px rgba(255, 255, 255, .18) inset, 0 0 34px rgba(41, 224, 255, .42);
    transform: translateY(-1px);
  }

  .btn-primary:active {
    transform: translateY(1px);
    box-shadow: 0 0 0 1px rgba(255, 255, 255, .12) inset, 0 0 14px rgba(41, 224, 255, .2);
  }

  .btn-ghost {
    color: #C7D7EB;
    border: 1px solid rgba(255, 255, 255, .14);
    background: rgba(255, 255, 255, .06);
  }

  .btn-ghost:hover {
    background: rgba(255, 255, 255, .11);
    border-color: rgba(255, 255, 255, .34);
    color: #E8F0FB;
  }

  .header-cta-mobile {
    display: none;
  }

  .icon-btn {
    width: 40px;
    height: 40px;
    flex: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    border: 1px solid transparent;
  }

  .icon-btn svg {
    width: 21px;
    height: 21px;
    stroke: #AFC2D9;
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .icon-btn:hover {
    background: rgba(255, 255, 255, .07);
    border-color: rgba(255, 255, 255, .1);
  }

  .header-bottom {
    background: rgba(7, 13, 22, .82);
    padding: 0;
  }

  .channel-strip {
    display: flex;
    align-items: center;
    gap: 6px;
    height: 52px;
    overflow-x: auto;
    scrollbar-width: none;
    white-space: nowrap;
    padding: 6px 0;
  }

  .channel-strip::-webkit-scrollbar,
  .header-bottom::-webkit-scrollbar {
    display: none;
  }

  .nav-pill {
    position: relative;
    display: inline-flex;
    align-items: center;
    height: 36px;
    padding: 0 16px;
    margin: 0 2px;
    border-radius: 999px;
    font-size: 14px;
    color: #A9C1D8;
    border: 1px solid transparent;
    transition: background .2s, color .2s, border-color .2s;
    flex: none;
  }

  .nav-pill:hover {
    color: #F0F7FF;
    background: rgba(255, 255, 255, .07);
    border-color: rgba(255, 255, 255, .08);
  }

  .nav-pill.active {
    color: #D7F8FF;
    background: rgba(41, 224, 255, .09);
    border-color: rgba(41, 224, 255, .32);
    box-shadow: 0 0 12px rgba(41, 224, 255, .08) inset;
  }

  .mobile-panel {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: 0;
    overflow: hidden;
    background: rgba(7, 13, 22, .98);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    transition: max-height .3s ease;
    border-bottom: 1px solid rgba(255, 255, 255, .1);
  }

  .mobile-panel.open {
    max-height: 360px;
    box-shadow: 0 28px 50px rgba(0, 0, 0, .34);
  }

  .mobile-panel-inner {
    padding: 20px 16px 24px;
  }

  .mobile-search {
    display: flex;
    align-items: center;
    gap: 10px;
    height: 46px;
    padding: 0 14px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, .12);
    background: rgba(255, 255, 255, .05);
  }

  .mobile-search input {
    background: transparent;
    border: 0;
    color: #d6e2f0;
    font-size: 15px;
    width: 100%;
  }

  .mobile-panel-links {
    display: grid;
    gap: 6px;
    margin-top: 18px;
  }

  .mobile-panel-links a {
    display: block;
    padding: 13px 12px;
    border-radius: 12px;
    color: #B4C4DA;
    font-size: 15px;
  }

  .mobile-panel-links a:hover,
  .mobile-panel-links a.active {
    background: rgba(255, 255, 255, .07);
    color: #E8F0FB;
  }

  @media (max-width: 900px) {
    .desktop-search {
      display: none;
    }
    .header-cta-desktop {
      display: none;
    }
    .header-cta-mobile {
      display: inline-flex;
    }
  }

  @media (min-width: 901px) {
    .mobile-search-btn-row {
      display: none;
    }
  }

  @media (min-width: 901px) {
    .mobile-panel {
      display: none !important;
    }
  }

  /* 页面页头 */
  .page-lead {
    position: relative;
    overflow: hidden;
    padding: 88px 0 96px;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
    background:
      linear-gradient(180deg, rgba(7, 13, 22, .4) 0%, rgba(7, 13, 22, .86) 100%),
      url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  }

  @media (max-width: 768px) {
    .page-lead {
      padding: 48px 0 60px;
    }
  }

  .lead-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 54px;
    align-items: center;
  }

  @media (max-width: 980px) {
    .lead-grid {
      grid-template-columns: 1fr;
      gap: 30px;
    }
    .lead-visual {
      order: 2;
    }
  }

  .page-lead h1 {
    margin: 20px 0 18px;
    font-size: clamp(36px, 5.4vw, 58px);
    line-height: 1.2;
    font-weight: 800;
    letter-spacing: .02em;
    color: var(--text-title);
    max-width: 760px;
  }

  .page-lead h1 .text-grad {
    background: linear-gradient(100deg, #29E0FF 10%, #3E7BFA 65%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .lead-description {
    font-size: 16px;
    line-height: 1.9;
    color: #C3D1E1;
    margin-bottom: 34px;
    max-width: 640px;
  }

  .lead-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
  }

  .lead-note {
    margin-top: 18px;
    font-size: 13px;
    color: #748AA2;
  }

  .browser-panel {
    border-radius: 20px;
    overflow: hidden;
    background: #0D1623;
    border: 1px solid rgba(255, 255, 255, .12);
    box-shadow: 0 30px 70px rgba(0, 0, 0, .5), 0 0 40px rgba(41, 224, 255, .08);
  }

  .browser-bar {
    height: 42px;
    padding: 0 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
    background: rgba(255, 255, 255, .05);
  }

  .browser-dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .22);
  }

  .browser-dot:nth-child(1) {
    background: rgba(255, 181, 71, .9);
  }

  .browser-dot:nth-child(2) {
    background: rgba(41, 224, 255, .8);
  }

  .browser-dot:nth-child(3) {
    background: rgba(164, 92, 255, .7);
  }

  .browser-url {
    margin-left: 10px;
    flex: 1;
    height: 25px;
    border-radius: 8px;
    background: rgba(255, 255, 255, .06);
    color: #B4C4DA;
    font-size: 12px;
    display: flex;
    align-items: center;
    padding: 0 10px;
    border: 1px solid rgba(255, 255, 255, .04);
    overflow: hidden;
    white-space: nowrap;
  }

  .browser-body {
    padding: 0;
  }

  .browser-body img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
  }

  /* 数据条 */
  .metrics-strip {
    padding: 34px 0;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
  }

  .metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .metric-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 22px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, .07);
    background: rgba(255, 255, 255, .04);
  }

  .metric-icon {
    width: 42px;
    height: 42px;
    flex: none;
    border-radius: 12px;
    background: rgba(41, 224, 255, .08);
    border: 1px solid rgba(41, 224, 255, .2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #29E0FF;
  }

  .metric-icon svg {
    width: 21px;
    height: 21px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .metric-title {
    color: #E8F0FB;
    font-size: 15px;
    font-weight: 700;
  }

  .metric-desc {
    color: #8096B2;
    font-size: 12px;
    line-height: 1.5;
    margin-top: 1px;
  }

  @media (max-width: 768px) {
    .metrics-grid {
      grid-template-columns: 1fr;
    }
    .metric-card {
      padding: 16px 18px;
    }
  }

  /* 真实场景 */
  .scene-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 26px;
  }

  @media (max-width: 900px) {
    .scene-cards {
      grid-template-columns: 1fr;
    }
  }

  .scene-card {
    padding: 30px 30px 28px;
    border-radius: 18px;
  }

  .scene-card .scene-no {
    font-size: 13px;
    letter-spacing: .22em;
    color: #29E0FF;
    font-weight: 600;
  }

  .scene-card h3 {
    color: #E8F0FB;
    font-size: 20px;
    line-height: 1.45;
    margin: 14px 0 10px;
  }

  .scene-card p {
    color: #B4C4DA;
    line-height: 1.85;
    margin-bottom: 22px;
  }

  .tagline-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
  }

  .mini-tag {
    display: inline-block;
    padding: 5px 12px;
    font-size: 12px;
    color: #A7E7F5;
    background: rgba(41, 224, 255, .08);
    border: 1px solid rgba(41, 224, 255, .15);
    border-radius: 999px;
  }

  /* 福利活动卡片 */
  .welfare-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  @media (max-width: 1023px) {
    .welfare-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  @media (max-width: 680px) {
    .welfare-grid {
      grid-template-columns: 1fr;
    }
  }

  .welfare-card {
    overflow: hidden;
    transition: transform .25s ease, box-shadow .25s ease;
  }

  .welfare-thumb {
    position: relative;
    display: block;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background: #0b1622;
  }

  .welfare-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: .94;
    transition: transform .4s ease, opacity .3s ease;
  }

  .welfare-card:hover .welfare-thumb img {
    transform: scale(1.04);
    opacity: 1;
  }

  .welfare-card-body {
    padding: 22px 22px 20px;
  }

  .card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
  }

  .card-tag {
    display: inline-flex;
    align-items: center;
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 6px;
    background: rgba(41, 224, 255, .08);
    color: #7ADFFF;
    border: 1px solid rgba(41, 224, 255, .2);
  }

  .card-tag.violet {
    background: rgba(164, 92, 255, .08);
    color: #C6A0FF;
    border-color: rgba(164, 92, 255, .24);
  }

  .card-tag.star {
    background: rgba(255, 181, 71, .08);
    color: #FFD291;
    border-color: rgba(255, 181, 71, .22);
  }

  .welfare-card h3 {
    margin: 0 0 9px;
    color: #E8F0FB;
    font-size: 19px;
    font-weight: 700;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .welfare-card p {
    font-size: 14px;
    line-height: 1.8;
    color: #B4C4DA;
    margin: 0 0 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .card-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: #748AA2;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, .06);
  }

  .card-meta time {
    color: #8096B2;
  }

  .card-meta a {
    margin-left: auto;
    color: #29E0FF;
    font-size: 13px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 4px;
  }

  .card-meta a:hover {
    text-shadow: 0 0 12px rgba(41, 224, 255, .7);
  }

  .card-meta a svg,
  .card-meta a span {
    width: 15px;
    height: 15px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
  }

  /* 领取节奏 */
  .rules-zone {
    background:
      radial-gradient(ellipse at 80% 50%, rgba(41, 224, 255, .05), transparent 45%),
      rgba(0, 0, 0, 0);
    border-top: 1px solid rgba(255, 255, 255, .05);
    border-bottom: 1px solid rgba(255, 255, 255, .05);
  }

  .step-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    counter-reset: ruleStep;
  }

  .step-card {
    position: relative;
    padding: 28px 26px 26px;
    border-radius: 18px;
    counter-increment: ruleStep;
  }

  .step-card::after {
    content: "0" counter(ruleStep);
    display: block;
    font-size: 40px;
    font-weight: 800;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1px rgba(41, 224, 255, .5);
    opacity: .5;
    margin-bottom: 18px;
    letter-spacing: .06em;
  }

  .step-card strong {
    display: block;
    color: #E8F0FB;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
  }

  .step-card p {
    font-size: 14px;
    line-height: 1.8;
    color: #8FA6BD;
    margin: 0;
  }

  @media (max-width: 900px) {
    .step-grid {
      grid-template-columns: 1fr;
    }
  }

  /* CTA */
  .cta-banner {
    position: relative;
    padding: 88px 0;
    background:
      linear-gradient(90deg, rgba(7, 13, 22, .42) 0%, rgba(7, 13, 22, .82) 48%, rgba(7, 13, 22, .5) 100%),
      url('/assets/images/backpic/back-3.webp') center / cover no-repeat;
    border-top: 1px solid rgba(255, 255, 255, .05);
  }

  @media (max-width: 768px) {
    .cta-banner {
      padding: 62px 0;
    }
  }

  .cta-banner h2 {
    color: #F1F7FF;
    font-size: clamp(26px, 4.2vw, 42px);
    margin: 0 0 14px;
    line-height: 1.28;
    max-width: 660px;
  }

  .cta-banner .cta-lead {
    max-width: 660px;
    color: #BFCEE1;
    font-size: 16px;
    line-height: 1.85;
    margin-bottom: 34px;
  }

  .lead-form {
    display: flex;
    max-width: 560px;
    align-items: center;
    gap: 14px;
    flex-wrap: nowrap;
  }

  .lead-form input {
    flex: 1;
    height: 52px;
    padding: 0 20px;
    color: #E8F0FB;
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 12px;
    font-size: 14px;
    transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
    min-width: 0;
  }

  .lead-form input::placeholder {
    color: #5F7B9A;
  }

  .lead-form input:focus {
    border-color: rgba(41, 224, 255, .75);
    background: rgba(41, 224, 255, .04);
    box-shadow: 0 0 0 3px rgba(41, 224, 255, .13);
  }

  .lead-form .btn {
    height: 52px;
    padding: 0 28px;
    flex: none;
  }

  .lead-form-tip {
    font-size: 12px;
    color: #7e94ac;
    margin-top: 12px;
  }

  .form-message {
    font-size: 14px;
    color: #8CEAFF;
    display: none;
    margin-top: 10px;
  }

  @media (max-width: 620px) {
    .lead-form {
      align-items: stretch;
      flex-direction: column;
    }
  }

  /* FAQ */
  .faq-box {
    max-width: 860px;
    margin: 0 auto;
  }

  .faq-item {
    border-bottom: 1px solid rgba(255, 255, 255, .1);
    padding: 14px 0;
    background: transparent;
    border-radius: 0;
  }

  .faq-item summary {
    list-style: none;
    display: flex;
    align-items: center;
    padding: 15px 14px;
    cursor: pointer;
    color: #DCE9F5;
    font-size: 16px;
    font-weight: 500;
    line-height: 1.5;
    border-radius: 12px;
    gap: 16px;
    transition: background .2s;
  }

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

  .faq-item summary:hover {
    background: rgba(255, 255, 255, .045);
  }

  .faq-arrow {
    margin-left: auto;
    width: 32px;
    height: 32px;
    flex: none;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, .14);
    color: #29E0FF;
    transition: transform .25s ease, background .2s;
  }

  .faq-arrow svg {
    width: 15px;
    height: 15px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
  }

  .faq-item[open] .faq-arrow {
    transform: rotate(180deg);
    background: rgba(41, 224, 255, .12);
    border-color: rgba(41, 224, 255, .32);
  }

  .faq-body {
    padding: 0 16px 22px;
    color: #9FB2C9;
    line-height: 1.85;
    font-size: 15px;
    max-width: 760px;
  }

  /* 页脚 */
  .site-footer {
    background:
      radial-gradient(circle at 20% 0%, rgba(41, 224, 255, .05), transparent 24%),
      #07101B;
    border-top: 1px solid rgba(255, 255, 255, .09);
    padding: 70px 0 0;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
    gap: 32px;
    padding-bottom: 52px;
  }

  @media (max-width: 1023px) {
    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
  }

  @media (max-width: 560px) {
    .footer-grid {
      grid-template-columns: 1fr;
    }
  }

  .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
  }

  .footer-logo-icon {
    width: 38px;
    height: 38px;
    border-radius: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #29E0FF, #3E7BFA);
    color: #06101C;
    box-shadow: 0 0 16px rgba(41, 224, 255, .25);
  }

  .footer-logo-icon svg {
    width: 22px;
    height: 22px;
    fill: #08101a;
  }

  .footer-logo strong {
    display: block;
    color: #E8F0FB;
    font-size: 18px;
    line-height: 1.2;
  }

  .footer-logo small {
    display: block;
    color: #29E0FF;
    font-size: 11px;
    letter-spacing: .1em;
    margin-top: 1px;
  }

  .footer-brand p {
    margin: 0;
    font-size: 14px;
    line-height: 1.85;
    color: #8CA0BA;
    max-width: 420px;
  }

  .footer-col h4 {
    color: #CFE0F0;
    margin: 0 0 18px;
    font-size: 15px;
    font-weight: 700;
  }

  .footer-col ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 11px;
  }

  .footer-col li a {
    font-size: 14px;
    color: #90A6BE;
    display: inline-flex;
    gap: 6px;
    transition: color .2s, padding-left .2s;
  }

  .footer-col li a:hover {
    color: #29E0FF;
    padding-left: 3px;
  }

  .footer-note {
    padding: 18px 20px;
    border-radius: 14px;
    background: rgba(255, 255, 255, .045);
    border: 1px solid rgba(255, 255, 255, .07);
    color: #8DA3BC;
    font-size: 13px;
    line-height: 1.85;
    align-self: start;
  }

  .footer-note strong {
    display: block;
    color: #CDE0EF;
    font-size: 14px;
    margin-bottom: 4px;
  }

  .footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 0 22px;
    flex-wrap: wrap;
    color: #5F7891;
    font-size: 12px;
    border-top: 1px solid rgba(255, 255, 255, .08);
  }

  @media (max-width: 660px) {
    .footer-bottom {
      justify-content: center;
      text-align: center;
    }
  }

  .text-link {
    color: #29E0FF;
    border-bottom: 1px solid rgba(41, 224, 255, .4);
    transition: border-color .2s, color .2s;
  }

  .text-link:hover {
    border-bottom-color: #29E0FF;
    color: #8CEAFF;
  }

  a:focus-visible,
  button:focus-visible,
  summary:focus-visible,
  input:focus-visible {
    outline: 2px solid rgba(41, 224, 255, .7);
    outline-offset: 2px;
  }