/* roulang page: index */
:root{
      --bg:#07111f;
      --bg-2:#0d1b2e;
      --bg-3:#10243a;
      --panel:rgba(255,255,255,.075);
      --panel-strong:rgba(255,255,255,.11);
      --line:rgba(180,210,255,.16);
      --line-strong:rgba(80,190,255,.38);
      --text:#f4f8ff;
      --muted:#b7c5d8;
      --weak:#7f91aa;
      --blue:#2f80ff;
      --blue-2:#3a86ff;
      --cyan:#32e6c5;
      --purple:#8b7cff;
      --amber:#ffb84d;
      --radius-xl:30px;
      --radius-lg:22px;
      --radius-md:16px;
      --shadow:0 18px 60px rgba(0,70,180,.2);
      --shadow-hover:0 24px 80px rgba(47,128,255,.34);
      --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 8% 0%,rgba(47,128,255,.24),transparent 33%),
        radial-gradient(circle at 82% 16%,rgba(50,230,197,.13),transparent 32%),
        radial-gradient(circle at 78% 80%,rgba(139,124,255,.12),transparent 36%),
        linear-gradient(180deg,#07111f 0%,#081421 45%,#07111f 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.26;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 76%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none;transition:color .22s ease,transform .22s ease,border-color .22s ease,background .22s ease}
    img{max-width:100%;display:block}
    button,input,textarea,select{font-family:inherit}
    ::selection{background:rgba(50,230,197,.32);color:#fff}
    .grid-container{max-width:1240px}
    .section{padding:94px 0}
    .section.compact{padding:64px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid rgba(50,230,197,.28);
      border-radius:999px;
      background:rgba(50,230,197,.08);
      color:#dffef8;
      font-size:13px;
      font-weight:700;
      letter-spacing:.02em;
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 16px rgba(50,230,197,.8);
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:24px;
      margin-bottom:30px;
    }
    .section-title{
      margin:12px 0 8px;
      font-size:38px;
      line-height:1.18;
      font-weight:800;
      letter-spacing:-.03em;
    }
    .section-desc{
      margin:0;
      max-width:720px;
      color:var(--muted);
      font-size:16px;
    }
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#b8fff2;
      font-weight:700;
      white-space:nowrap;
    }
    .text-link:hover{color:#fff;transform:translateX(4px)}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(7,17,31,.78);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(180,210,255,.12);
    }
    .top-nav{
      min-height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .brand-mark{
      width:44px;
      height:44px;
      display:grid;
      place-items:center;
      border-radius:15px;
      color:#fff;
      font-weight:900;
      background:
        radial-gradient(circle at 30% 20%,rgba(255,255,255,.45),transparent 28%),
        linear-gradient(135deg,var(--blue),var(--cyan));
      box-shadow:0 14px 34px rgba(47,128,255,.35), inset 0 0 0 1px rgba(255,255,255,.24);
    }
    .brand-name{
      display:flex;
      flex-direction:column;
      line-height:1.2;
    }
    .brand-name strong{font-size:17px;letter-spacing:.01em}
    .brand-name span{font-size:12px;color:var(--weak)}
    .nav-search{
      flex:1;
      max-width:460px;
      position:relative;
    }
    .nav-search input{
      width:100%;
      height:44px;
      margin:0;
      padding:0 18px 0 44px;
      color:var(--text);
      border:1px solid rgba(180,210,255,.16);
      border-radius:999px;
      background:rgba(255,255,255,.07);
      box-shadow:none;
    }
    .nav-search input::placeholder{color:#8ea1b9}
    .nav-search input:focus{
      border-color:rgba(50,230,197,.55);
      background:rgba(255,255,255,.095);
      box-shadow:0 0 0 4px rgba(50,230,197,.1);
    }
    .nav-search:before{
      content:"⌕";
      position:absolute;
      left:18px;
      top:50%;
      transform:translateY(-51%);
      color:#b8fff2;
      font-size:22px;
      z-index:1;
    }
    .button.primary-cta,.primary-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:13px 22px;
      margin:0;
      border:0;
      border-radius:999px;
      color:#fff;
      font-weight:800;
      background:linear-gradient(135deg,var(--blue),var(--cyan));
      box-shadow:0 15px 40px rgba(47,128,255,.34);
      transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
    }
    .button.primary-cta:hover,.primary-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 22px 62px rgba(50,230,197,.28);filter:saturate(1.08)}
    .button.primary-cta:active,.primary-cta:active{transform:translateY(0)}
    .button.secondary-cta,.secondary-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:46px;
      padding:12px 20px;
      border-radius:999px;
      border:1px solid rgba(180,210,255,.22);
      color:#eef7ff;
      font-weight:800;
      background:rgba(255,255,255,.07);
    }
    .button.secondary-cta:hover,.secondary-cta:hover{
      color:#fff;
      border-color:rgba(50,230,197,.48);
      background:rgba(50,230,197,.1);
      transform:translateY(-2px);
    }
    .menu-toggle{
      display:none;
      width:46px;
      height:42px;
      border-radius:14px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.07);
      color:#fff;
      font-size:20px;
      cursor:pointer;
    }
    .channel-bar{
      border-top:1px solid rgba(180,210,255,.08);
      padding:11px 0 14px;
    }
    .channel-tabs{
      display:flex;
      gap:10px;
      overflow-x:auto;
      scroll-snap-type:x proximity;
      scrollbar-width:none;
      margin:0;
      padding:0;
      list-style:none;
    }
    .channel-tabs::-webkit-scrollbar{display:none}
    .channel-tabs a{
      display:inline-flex;
      align-items:center;
      min-height:38px;
      padding:8px 16px;
      border:1px solid rgba(180,210,255,.14);
      border-radius:999px;
      color:var(--muted);
      font-weight:750;
      font-size:14px;
      background:rgba(255,255,255,.045);
      white-space:nowrap;
      scroll-snap-align:start;
    }
    .channel-tabs a:hover{
      color:#fff;
      border-color:rgba(50,230,197,.42);
      background:rgba(255,255,255,.085);
    }
    .channel-tabs a.active{
      color:#fff;
      border-color:rgba(50,230,197,.66);
      background:linear-gradient(135deg,rgba(47,128,255,.36),rgba(50,230,197,.18));
      box-shadow:0 0 28px rgba(50,230,197,.16);
    }
    .hero{
      position:relative;
      padding:74px 0 92px;
      overflow:hidden;
    }
    .hero:after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(7,17,31,.94),rgba(7,17,31,.72),rgba(7,17,31,.96)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity:.34;
      z-index:-2;
    }
    .hero:before{
      content:"";
      position:absolute;
      width:520px;
      height:520px;
      right:-180px;
      top:60px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(50,230,197,.17),transparent 62%);
      z-index:-1;
    }
    .hero-copy{padding-top:20px}
    h1{
      margin:18px 0 18px;
      max-width:760px;
      font-size:56px;
      line-height:1.12;
      font-weight:850;
      letter-spacing:-.045em;
    }
    .gradient-text{
      background:linear-gradient(120deg,#fff 0%,#cfe7ff 45%,#85fff0 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero-lead{
      max-width:720px;
      margin:0 0 24px;
      color:var(--muted);
      font-size:18px;
      line-height:1.85;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin:30px 0 24px;
    }
    .keyword-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:20px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 11px;
      border-radius:999px;
      border:1px solid rgba(180,210,255,.14);
      background:rgba(255,255,255,.055);
      color:#dce9fb;
      font-size:13px;
      font-weight:650;
    }
    .tag.cyan{border-color:rgba(50,230,197,.3);color:#cafff6}
    .magazine-panel{
      position:relative;
      min-height:560px;
    }
    .glass-card{
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg,rgba(255,255,255,.105),rgba(255,255,255,.055));
      box-shadow:var(--shadow);
      backdrop-filter:blur(18px);
    }
    .focus-card{
      padding:26px;
      margin-top:18px;
    }
    .focus-card img{
      width:100%;
      height:180px;
      object-fit:cover;
      border-radius:22px;
      margin-bottom:20px;
      filter:saturate(1.05) contrast(1.05);
    }
    .focus-card h2{
      margin:4px 0 10px;
      font-size:25px;
      line-height:1.28;
      font-weight:850;
    }
    .focus-card p{margin:0;color:var(--muted)}
    .mini-stack{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
      margin-top:14px;
    }
    .stat-card{
      padding:20px;
      border-radius:22px;
      border:1px solid rgba(180,210,255,.14);
      background:rgba(255,255,255,.07);
    }
    .stat-card strong{
      display:block;
      color:#fff;
      font-size:30px;
      line-height:1;
      margin-bottom:8px;
    }
    .stat-card span{color:var(--muted);font-size:14px}
    .entry-card{
      position:absolute;
      left:-22px;
      bottom:16px;
      width:58%;
      padding:20px;
      border-radius:24px;
      border:1px solid rgba(50,230,197,.28);
      background:rgba(8,20,33,.82);
      box-shadow:0 20px 70px rgba(0,0,0,.28);
    }
    .entry-card b{display:block;margin-bottom:8px;color:#cafff6}
    .entry-card p{margin:0 0 12px;color:var(--muted);font-size:14px}
    .notice-card{
      position:absolute;
      right:-8px;
      bottom:76px;
      width:45%;
      padding:18px;
      border-radius:22px;
      border:1px solid rgba(255,184,77,.26);
      background:rgba(255,184,77,.08);
    }
    .notice-card b{color:#ffe0a8}
    .notice-card p{margin:8px 0 0;color:#d8c8aa;font-size:13px}
    .value-layout{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:18px;
      align-items:stretch;
    }
    .value-card{
      position:relative;
      padding:28px;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:rgba(255,255,255,.065);
      overflow:hidden;
      transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease,background .24s ease;
    }
    .value-card:hover{
      transform:translateY(-5px);
      border-color:rgba(50,230,197,.34);
      background:rgba(255,255,255,.09);
      box-shadow:var(--shadow-hover);
    }
    .value-card.large{
      min-height:310px;
      background:
        linear-gradient(140deg,rgba(47,128,255,.2),rgba(255,255,255,.055)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    }
    .value-card.large:before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(90deg,rgba(7,17,31,.92),rgba(7,17,31,.5));
      z-index:0;
    }
    .value-card>*{position:relative;z-index:1}
    .value-card h3{
      margin:15px 0 10px;
      font-size:23px;
      line-height:1.32;
      font-weight:850;
    }
    .value-card p{margin:0 0 18px;color:var(--muted)}
    .icon-dot{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:15px;
      color:#041421;
      font-weight:900;
      background:linear-gradient(135deg,#fff,var(--cyan));
      box-shadow:0 12px 34px rgba(50,230,197,.25);
    }
    .value-side{
      display:grid;
      gap:18px;
    }
    .small-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:18px;
      margin-top:18px;
    }
    .feature-note{
      margin-top:20px;
      padding:16px 18px;
      border-radius:18px;
      border:1px solid rgba(255,184,77,.22);
      color:#ffe1ad;
      background:rgba(255,184,77,.075);
      font-size:14px;
    }
    .magazine-section{
      background:linear-gradient(180deg,rgba(13,27,46,.58),rgba(7,17,31,.12));
      border-top:1px solid rgba(180,210,255,.08);
      border-bottom:1px solid rgba(180,210,255,.08);
    }
    .content-board{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:18px;
    }
    .cover-card,.list-card,.case-card,.plan-card{
      border:1px solid var(--line);
      background:rgba(255,255,255,.065);
      border-radius:var(--radius-lg);
      overflow:hidden;
      transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease,background .24s ease;
    }
    .cover-card:hover,.list-card:hover,.case-card:hover,.plan-card:hover{
      transform:translateY(-5px);
      border-color:rgba(50,230,197,.34);
      box-shadow:var(--shadow-hover);
      background:rgba(255,255,255,.088);
    }
    .cover-thumb{
      position:relative;
      height:285px;
      overflow:hidden;
    }
    .cover-thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .35s ease;
    }
    .cover-card:hover img,.case-card:hover img,.list-card:hover img{transform:scale(1.045)}
    .cover-thumb:after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(to top,rgba(7,17,31,.9),transparent 52%);
    }
    .cover-body{padding:24px}
    .cover-body h3,.list-card h3,.case-card h3,.plan-card h3{
      margin:10px 0 10px;
      font-size:23px;
      line-height:1.35;
      font-weight:850;
      transition:color .22s ease;
    }
    .cover-card:hover h3,.list-card:hover h3,.case-card:hover h3{color:#b8fff2}
    .cover-body p,.list-card p,.case-card p,.plan-card p{margin:0;color:var(--muted)}
    .meta-line{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      color:var(--weak);
      font-size:13px;
      margin-top:16px;
    }
    .list-stack{
      display:grid;
      gap:16px;
    }
    .list-card{
      display:grid;
      grid-template-columns:148px 1fr;
      gap:18px;
      padding:14px;
    }
    .list-card img{
      width:148px;
      height:132px;
      border-radius:18px;
      object-fit:cover;
      overflow:hidden;
    }
    .list-card h3{font-size:20px;margin-top:6px}
    .case-grid{
      columns:3 260px;
      column-gap:18px;
    }
    .case-card{
      display:inline-block;
      width:100%;
      margin:0 0 18px;
      break-inside:avoid;
    }
    .case-card img{
      width:100%;
      height:auto;
      max-height:265px;
      object-fit:cover;
    }
    .case-body{padding:22px}
    .case-card.tall img{height:310px}
    .case-card.short img{height:170px}
    .process-band{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .process-step{
      position:relative;
      padding:24px;
      border-radius:22px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.06);
    }
    .process-step strong{
      display:inline-flex;
      width:34px;
      height:34px;
      align-items:center;
      justify-content:center;
      border-radius:12px;
      color:#041421;
      background:linear-gradient(135deg,var(--cyan),#fff);
      margin-bottom:14px;
    }
    .process-step h3{font-size:19px;margin:0 0 8px;font-weight:850}
    .process-step p{margin:0;color:var(--muted);font-size:14px}
    .plans{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .plan-card{
      position:relative;
      padding:28px;
    }
    .plan-card.recommend{
      border-color:rgba(50,230,197,.52);
      box-shadow:0 0 0 1px rgba(50,230,197,.16),0 24px 70px rgba(50,230,197,.12);
      background:linear-gradient(180deg,rgba(47,128,255,.18),rgba(255,255,255,.07));
    }
    .corner-badge{
      position:absolute;
      top:18px;
      right:18px;
      padding:5px 10px;
      border-radius:999px;
      color:#062016;
      background:var(--cyan);
      font-size:12px;
      font-weight:900;
    }
    .plan-card ul{
      margin:20px 0 24px;
      padding:0;
      list-style:none;
    }
    .plan-card li{
      position:relative;
      padding-left:22px;
      margin:10px 0;
      color:#d9e7f8;
    }
    .plan-card li:before{
      content:"";
      position:absolute;
      left:0;
      top:.72em;
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 12px rgba(50,230,197,.55);
    }
    .plan-label{color:var(--weak);font-size:14px}
    .plan-target{color:#b8fff2;font-weight:850;margin:12px 0 0}
    .faq-wrap{
      max-width:940px;
      margin:0 auto;
    }
    .accordion{
      background:transparent;
      border:0;
    }
    .accordion-item{
      margin-bottom:14px;
      border:1px solid var(--line);
      border-radius:20px;
      background:rgba(255,255,255,.06);
      overflow:hidden;
    }
    .accordion-title{
      position:relative;
      display:block;
      padding:21px 58px 21px 24px;
      border:0;
      color:#fff;
      font-size:17px;
      font-weight:850;
      background:transparent;
    }
    .accordion-title:hover,.accordion-title:focus{
      color:#b8fff2;
      background:rgba(255,255,255,.055);
      outline:none;
    }
    .accordion-title:before{
      right:24px;
      color:var(--cyan);
      font-size:22px;
      margin-top:-14px;
    }
    .accordion-content{
      border:0;
      padding:0 24px 22px;
      color:var(--muted);
      background:rgba(255,255,255,.035);
    }
    .cta-panel{
      position:relative;
      padding:38px;
      border-radius:32px;
      border:1px solid rgba(50,230,197,.24);
      background:
        radial-gradient(circle at 14% 10%,rgba(50,230,197,.2),transparent 30%),
        linear-gradient(135deg,rgba(47,128,255,.22),rgba(255,255,255,.07));
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .cta-panel:after{
      content:"";
      position:absolute;
      width:360px;
      height:360px;
      right:-140px;
      bottom:-180px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(139,124,255,.26),transparent 64%);
    }
    .cta-panel>*{position:relative;z-index:1}
    .contact-form{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
    }
    .contact-form label{
      display:block;
      color:#dbe8fa;
      font-weight:750;
      font-size:13px;
      margin-bottom:7px;
    }
    .contact-form input,.contact-form select,.contact-form textarea{
      width:100%;
      margin:0;
      border-radius:16px;
      border:1px solid rgba(180,210,255,.18);
      background:rgba(5,13,24,.58);
      color:#fff;
      box-shadow:none;
    }
    .contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{
      border-color:rgba(50,230,197,.62);
      box-shadow:0 0 0 4px rgba(50,230,197,.11);
      background:rgba(5,13,24,.74);
    }
    .contact-form textarea{min-height:116px;resize:vertical}
    .form-full{grid-column:1/-1}
    .flow-list{
      margin:22px 0 0;
      padding:0;
      list-style:none;
    }
    .flow-list li{
      display:flex;
      gap:12px;
      align-items:flex-start;
      margin:13px 0;
      color:var(--muted);
    }
    .flow-list span{
      flex:0 0 auto;
      width:26px;
      height:26px;
      border-radius:9px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      color:#041421;
      font-size:13px;
      font-weight:900;
      background:var(--cyan);
    }
    .site-footer{
      padding:54px 0 28px;
      border-top:1px solid rgba(180,210,255,.1);
      background:rgba(5,12,22,.72);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:18px;
    }
    .footer-brand strong{font-size:18px}
    .footer-text{color:var(--muted);margin:0;max-width:640px}
    .footer-links{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .footer-links a{color:var(--muted)}
    .footer-links a:hover{color:#b8fff2}
    .footer-title{
      margin:0 0 14px;
      font-size:15px;
      font-weight:900;
      color:#fff;
    }
    .disclaimer{
      margin-top:28px;
      padding-top:22px;
      border-top:1px solid rgba(180,210,255,.1);
      color:var(--weak);
      font-size:13px;
    }
    @media (max-width:1024px){
      h1{font-size:46px}
      .section-title{font-size:32px}
      .top-nav{gap:14px}
      .nav-search{max-width:340px}
      .magazine-panel{min-height:auto}
      .entry-card,.notice-card{position:static;width:auto;margin-top:14px}
      .value-layout,.content-board{grid-template-columns:1fr}
      .process-band{grid-template-columns:repeat(2,1fr)}
      .plans{grid-template-columns:1fr}
    }
    @media (max-width:768px){
      .section{padding:68px 0}
      .top-nav{
        min-height:auto;
        padding:14px 0;
        flex-wrap:wrap;
      }
      .menu-toggle{display:inline-grid;place-items:center}
      .nav-search{
        order:3;
        max-width:none;
        flex:0 0 100%;
        display:none;
      }
      .top-nav.menu-open .nav-search{display:block}
      .top-nav .primary-cta{display:none}
      .brand-name span{display:none}
      h1{font-size:38px;letter-spacing:-.035em}
      .hero{padding:52px 0 70px}
      .hero-lead{font-size:16px}
      .section-head{display:block}
      .mini-stack,.small-grid{grid-template-columns:1fr}
      .list-card{grid-template-columns:1fr}
      .list-card img{width:100%;height:190px}
      .process-band{grid-template-columns:1fr}
      .contact-form{grid-template-columns:1fr}
      .cta-panel{padding:24px}
      .hero-actions .button,.hero-actions a{width:100%}
    }
    @media (max-width:520px){
      .grid-container{padding-left:18px;padding-right:18px}
      h1{font-size:34px}
      .section-title{font-size:28px}
      .focus-card,.value-card,.cover-body,.plan-card{padding:20px}
      .cover-thumb{height:220px}
      .case-grid{columns:1}
      .brand-mark{width:40px;height:40px;border-radius:14px}
      .brand-name strong{font-size:15px}
    }

/* roulang page: category1 */
:root{
      --bg:#07111f;
      --bg-2:#0d1b2e;
      --bg-3:#10243a;
      --panel:rgba(255,255,255,.075);
      --panel-strong:rgba(255,255,255,.105);
      --line:rgba(180,210,255,.16);
      --line-strong:rgba(50,230,197,.45);
      --text:#f4f8ff;
      --muted:#b7c5d8;
      --weak:#7f91aa;
      --blue:#2f80ff;
      --cyan:#32e6c5;
      --purple:#8b7cff;
      --amber:#ffb84d;
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --shadow:0 18px 60px rgba(0,70,180,.2);
      --shadow-hover:0 24px 80px rgba(47,128,255,.35);
      --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      line-height:1.75;
      background:
        radial-gradient(circle at 12% 8%,rgba(47,128,255,.26),transparent 34%),
        radial-gradient(circle at 86% 18%,rgba(50,230,197,.18),transparent 28%),
        radial-gradient(circle at 72% 88%,rgba(139,124,255,.16),transparent 34%),
        linear-gradient(180deg,var(--bg),#081421 46%,#06101d);
      min-height:100vh;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.18;
      background-image:
        linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
      background-size:44px 44px;
      mask-image:linear-gradient(to bottom,black,transparent 78%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none;transition:.22s ease}
    a:hover,a:focus{color:var(--cyan)}
    img{display:block;max-width:100%;height:auto}
    button,input,select,textarea{font-family:inherit}
    .grid-container{max-width:1220px}
    .skip-link{
      position:absolute;left:-999px;top:12px;background:var(--cyan);color:#03101b;padding:10px 14px;border-radius:12px;z-index:99
    }
    .skip-link:focus{left:12px}
    .site-header{
      position:sticky;
      top:0;
      z-index:30;
      background:rgba(7,17,31,.78);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--line);
    }
    .top-nav{
      min-height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
      padding:14px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      color:var(--text);
    }
    .brand:hover{color:var(--text);transform:translateY(-1px)}
    .brand-mark{
      width:42px;
      height:42px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:15px;
      font-weight:900;
      color:white;
      background:linear-gradient(135deg,var(--blue),var(--cyan));
      box-shadow:0 0 28px rgba(50,230,197,.35);
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.2}
    .brand-text strong{font-size:18px;letter-spacing:.2px}
    .brand-text span{font-size:12px;color:var(--muted)}
    .nav-search{
      flex:1;
      max-width:470px;
      position:relative;
    }
    .nav-search input{
      width:100%;
      height:44px;
      padding:0 16px 0 42px;
      border-radius:999px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.065);
      color:var(--text);
      outline:none;
      transition:.22s ease;
    }
    .nav-search input::placeholder{color:var(--weak)}
    .nav-search:before{
      content:"⌕";
      position:absolute;
      left:17px;
      top:7px;
      color:var(--cyan);
      font-size:20px;
      z-index:1;
    }
    .nav-search input:focus{
      border-color:var(--line-strong);
      box-shadow:0 0 0 4px rgba(50,230,197,.12);
      background:rgba(255,255,255,.09);
    }
    .nav-actions{display:flex;align-items:center;gap:12px}
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border:1px solid var(--line);
      border-radius:14px;
      background:rgba(255,255,255,.07);
      color:var(--text);
      cursor:pointer;
    }
    .btn,.button.btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:44px;
      padding:0 20px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:700;
      letter-spacing:.2px;
      cursor:pointer;
      margin:0;
      transition:.24s ease;
    }
    .btn-primary,.button.btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--blue),var(--cyan));
      box-shadow:0 12px 35px rgba(47,128,255,.28);
    }
    .btn-primary:hover,.btn-primary:focus{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:var(--shadow-hover);
      filter:saturate(1.08);
    }
    .btn-secondary{
      color:var(--text);
      background:rgba(255,255,255,.07);
      border-color:var(--line);
    }
    .btn-secondary:hover,.btn-secondary:focus{
      background:rgba(255,255,255,.12);
      border-color:rgba(50,230,197,.55);
      transform:translateY(-2px);
    }
    .btn:active{transform:translateY(1px)}
    .channel-bar{
      border-top:1px solid rgba(255,255,255,.06);
      padding:11px 0 14px;
      overflow-x:auto;
      scrollbar-width:none;
    }
    .channel-bar::-webkit-scrollbar{display:none}
    .channel-tabs{
      display:flex;
      align-items:center;
      gap:10px;
      list-style:none;
      margin:0;
      padding:0;
      min-width:max-content;
    }
    .channel-tabs a{
      display:inline-flex;
      align-items:center;
      padding:9px 16px;
      border-radius:999px;
      color:var(--muted);
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.045);
      font-size:14px;
      font-weight:650;
    }
    .channel-tabs a:hover{
      color:var(--text);
      border-color:rgba(50,230,197,.35);
      background:rgba(50,230,197,.08);
    }
    .channel-tabs a.active{
      color:#fff;
      border-color:rgba(50,230,197,.5);
      background:linear-gradient(135deg,rgba(47,128,255,.36),rgba(50,230,197,.18));
      box-shadow:0 0 26px rgba(50,230,197,.16);
    }
    .mobile-panel{
      display:none;
      padding:0 0 16px;
    }
    .section{padding:86px 0}
    .section-tight{padding:58px 0}
    .eyebrow,.badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      border:1px solid rgba(50,230,197,.32);
      background:rgba(50,230,197,.08);
      color:var(--cyan);
      font-size:13px;
      font-weight:700;
      letter-spacing:.2px;
    }
    .page-hero{
      position:relative;
      padding:78px 0 58px;
      overflow:hidden;
    }
    .page-hero:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(7,17,31,.9),rgba(7,17,31,.72),rgba(7,17,31,.95)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      opacity:.86;
      z-index:-2;
    }
    .page-hero:after{
      content:"";
      position:absolute;
      width:420px;height:420px;border-radius:50%;
      right:-110px;top:20px;
      background:radial-gradient(circle,rgba(50,230,197,.22),transparent 68%);
      z-index:-1;
    }
    .breadcrumb{
      display:flex;
      gap:8px;
      flex-wrap:wrap;
      margin:18px 0 0;
      color:var(--muted);
      font-size:14px;
    }
    .breadcrumb a{color:var(--cyan)}
    h1,h2,h3,p{margin-top:0}
    h1{
      max-width:850px;
      margin:18px 0 18px;
      font-size:52px;
      line-height:1.13;
      letter-spacing:-1.5px;
      font-weight:850;
    }
    .lead{
      max-width:760px;
      color:var(--muted);
      font-size:18px;
      line-height:1.85;
      margin-bottom:26px;
    }
    .hero-meta{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:28px;
    }
    .meta-card{
      min-width:168px;
      padding:16px 18px;
      border:1px solid var(--line);
      border-radius:20px;
      background:rgba(255,255,255,.065);
      backdrop-filter:blur(16px);
    }
    .meta-card strong{display:block;font-size:24px;color:var(--text);line-height:1.2}
    .meta-card span{font-size:13px;color:var(--muted)}
    .hero-cover{
      position:relative;
      border-radius:var(--radius-xl);
      overflow:hidden;
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      min-height:380px;
      background:var(--panel);
    }
    .hero-cover img{
      width:100%;
      height:380px;
      object-fit:cover;
      filter:saturate(1.06) contrast(1.05);
    }
    .hero-cover .cover-note{
      position:absolute;
      left:18px;right:18px;bottom:18px;
      padding:18px;
      border-radius:20px;
      background:rgba(7,17,31,.72);
      border:1px solid rgba(255,255,255,.14);
      backdrop-filter:blur(14px);
    }
    .cover-note strong{display:block;margin-bottom:5px}
    .cover-note p{margin:0;color:var(--muted);font-size:14px}
    .filter-wrap{
      margin-top:-24px;
      position:relative;
      z-index:3;
    }
    .filter-tabs{
      display:flex;
      gap:10px;
      overflow-x:auto;
      scrollbar-width:none;
      padding:14px;
      border-radius:24px;
      border:1px solid var(--line);
      background:rgba(13,27,46,.88);
      backdrop-filter:blur(18px);
      box-shadow:var(--shadow);
    }
    .filter-tabs::-webkit-scrollbar{display:none}
    .filter-tabs a{
      min-width:max-content;
      padding:10px 15px;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.04);
    }
    .filter-tabs a.active,.filter-tabs a:hover{
      color:#fff;
      background:linear-gradient(135deg,rgba(47,128,255,.35),rgba(50,230,197,.14));
      border-color:rgba(50,230,197,.42);
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:20px;
      margin-bottom:28px;
    }
    .section-head h2{
      margin:10px 0 0;
      font-size:34px;
      line-height:1.22;
      font-weight:820;
    }
    .section-head p{max-width:660px;color:var(--muted);margin:8px 0 0}
    .glass-card,.resource-card,.side-card,.process-card,.faq-card{
      border:1px solid var(--line);
      background:linear-gradient(180deg,var(--panel-strong),rgba(255,255,255,.055));
      border-radius:var(--radius-lg);
      box-shadow:0 16px 46px rgba(0,0,0,.16);
      backdrop-filter:blur(16px);
    }
    .resource-list{display:grid;gap:18px}
    .resource-card{
      overflow:hidden;
      transition:.25s ease;
    }
    .resource-card:hover{
      transform:translateY(-4px);
      border-color:rgba(50,230,197,.42);
      box-shadow:var(--shadow-hover);
    }
    .resource-card.featured{
      display:grid;
      grid-template-columns:42% 1fr;
      min-height:286px;
    }
    .resource-thumb{
      position:relative;
      overflow:hidden;
      min-height:210px;
      background:#0d1b2e;
    }
    .resource-thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:.35s ease;
    }
    .resource-card:hover .resource-thumb img{transform:scale(1.045)}
    .resource-thumb:after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(180deg,transparent,rgba(7,17,31,.58));
    }
    .resource-body{padding:24px}
    .resource-card h3{
      margin:12px 0 10px;
      font-size:23px;
      line-height:1.35;
      font-weight:790;
    }
    .resource-card:hover h3{color:var(--cyan)}
    .resource-card p{color:var(--muted);margin-bottom:18px}
    .resource-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      color:var(--weak);
      font-size:13px;
      margin-bottom:12px;
    }
    .tag,.keyword-tags .tag{
      display:inline-flex;
      align-items:center;
      padding:6px 10px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.1);
      color:var(--muted);
      background:rgba(255,255,255,.055);
      font-size:12px;
      font-weight:700;
    }
    .tag.cyan{color:var(--cyan);border-color:rgba(50,230,197,.32);background:rgba(50,230,197,.08)}
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:var(--cyan);
      font-weight:780;
    }
    .text-link:hover{gap:10px;color:#8ff8e6}
    .compact-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
    }
    .side-stack{display:grid;gap:18px;position:sticky;top:150px}
    .side-card{padding:22px}
    .side-card h3{
      font-size:19px;
      margin-bottom:14px;
      font-weight:800;
    }
    .side-search{position:relative}
    .side-search input,.contact-form input,.contact-form select,.contact-form textarea{
      width:100%;
      border:1px solid var(--line);
      border-radius:16px;
      background:rgba(255,255,255,.065);
      color:var(--text);
      padding:13px 15px;
      outline:none;
      transition:.2s ease;
    }
    .side-search input::placeholder,.contact-form input::placeholder,.contact-form textarea::placeholder{color:var(--weak)}
    .side-search input:focus,.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{
      border-color:var(--line-strong);
      box-shadow:0 0 0 4px rgba(50,230,197,.12);
      background:rgba(255,255,255,.09);
    }
    .hot-tags{display:flex;gap:8px;flex-wrap:wrap}
    .topic-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
    .topic-list li{
      padding:12px;
      border-radius:16px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.075);
    }
    .topic-list a{display:block;font-weight:720;color:var(--text)}
    .topic-list span{display:block;font-size:13px;color:var(--weak);margin-top:3px}
    .mini-cta{
      background:
        radial-gradient(circle at 22% 8%,rgba(50,230,197,.2),transparent 38%),
        linear-gradient(135deg,rgba(47,128,255,.28),rgba(139,124,255,.16));
    }
    .pagination-line{
      display:flex;
      justify-content:center;
      margin-top:28px;
    }
    .process-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .process-card{
      padding:22px;
      position:relative;
      overflow:hidden;
    }
    .process-card:before{
      content:attr(data-step);
      position:absolute;
      right:18px;
      top:10px;
      font-size:42px;
      line-height:1;
      font-weight:900;
      color:rgba(50,230,197,.11);
    }
    .process-card h3{font-size:19px;margin:20px 0 8px}
    .process-card p{color:var(--muted);margin:0;font-size:15px}
    .dot-icon{
      width:38px;height:38px;border-radius:14px;
      display:inline-flex;align-items:center;justify-content:center;
      background:linear-gradient(135deg,rgba(47,128,255,.32),rgba(50,230,197,.18));
      border:1px solid rgba(50,230,197,.32);
      color:var(--cyan);
      font-weight:900;
    }
    .faq-wrap .accordion{
      background:transparent;
      border:0;
    }
    .faq-wrap .accordion-item{
      margin-bottom:12px;
      border:1px solid var(--line);
      border-radius:20px;
      overflow:hidden;
      background:rgba(255,255,255,.06);
    }
    .faq-wrap .accordion-title{
      border:0;
      color:var(--text);
      font-size:17px;
      font-weight:780;
      padding:20px 54px 20px 22px;
      background:transparent;
    }
    .faq-wrap .accordion-title:hover,.faq-wrap .accordion-title:focus{
      color:var(--cyan);
      background:rgba(255,255,255,.045);
    }
    .faq-wrap .accordion-title:before{color:var(--cyan);right:22px}
    .faq-wrap .accordion-content{
      border:0;
      padding:0 22px 22px;
      color:var(--muted);
      background:rgba(255,255,255,.035);
    }
    .cta-panel{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-xl);
      border:1px solid rgba(50,230,197,.26);
      background:
        radial-gradient(circle at 18% 8%,rgba(50,230,197,.22),transparent 34%),
        radial-gradient(circle at 88% 80%,rgba(47,128,255,.24),transparent 34%),
        linear-gradient(135deg,rgba(255,255,255,.11),rgba(255,255,255,.055));
      box-shadow:var(--shadow);
      padding:34px;
    }
    .cta-panel h2{font-size:34px;margin-bottom:10px}
    .cta-panel p{color:var(--muted)}
    .contact-form{display:grid;gap:13px}
    .contact-form textarea{min-height:112px;resize:vertical}
    .contact-form select option{background:#0d1b2e;color:#fff}
    .site-footer{
      padding:62px 0 34px;
      border-top:1px solid var(--line);
      background:linear-gradient(180deg,rgba(6,16,29,.82),rgba(3,9,18,.96));
    }
    .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
    .footer-brand strong{font-size:19px}
    .footer-text{max-width:680px;color:var(--muted);margin-bottom:18px}
    .keyword-tags{display:flex;flex-wrap:wrap;gap:8px}
    .footer-title{font-size:16px;margin:8px 0 14px;color:var(--text)}
    .footer-links{list-style:none;margin:0;padding:0;display:grid;gap:9px;color:var(--muted)}
    .footer-links a{color:var(--muted)}
    .footer-links a:hover{color:var(--cyan)}
    .disclaimer{
      margin-top:36px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.09);
      color:var(--weak);
      font-size:13px;
    }
    .disclaimer p{margin:0 0 8px}
    @media (max-width:1024px){
      h1{font-size:42px}
      .top-nav{gap:14px}
      .nav-search{max-width:360px}
      .resource-card.featured{grid-template-columns:1fr}
      .process-grid{grid-template-columns:1fr 1fr}
      .side-stack{position:static;margin-top:22px}
      .section{padding:70px 0}
    }
    @media (max-width:768px){
      .top-nav{min-height:70px}
      .desktop-search,.desktop-cta{display:none}
      .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
      .mobile-panel.is-open{display:block}
      .mobile-panel .nav-search{display:block;max-width:none;margin-bottom:12px}
      .mobile-panel .btn{width:100%}
      .brand-text span{display:none}
      h1{font-size:36px;letter-spacing:-.6px}
      .lead{font-size:16px}
      .page-hero{padding:54px 0 46px}
      .hero-cover{margin-top:24px;min-height:260px}
      .hero-cover img{height:280px}
      .section-head{display:block}
      .compact-grid{grid-template-columns:1fr}
      .process-grid{grid-template-columns:1fr}
      .cta-panel{padding:24px}
      .cta-panel h2,.section-head h2{font-size:28px}
    }
    @media (max-width:520px){
      .grid-container{padding-left:18px;padding-right:18px}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .brand-text strong{font-size:16px}
      .btn{width:100%}
      .nav-actions .btn{width:auto;padding:0 14px}
      .hero-meta{display:grid;grid-template-columns:1fr 1fr}
      .meta-card{min-width:0;padding:14px}
      .meta-card strong{font-size:20px}
      .filter-tabs{border-radius:18px;padding:10px}
      .resource-body{padding:20px}
      .resource-card h3{font-size:21px}
      .section{padding:58px 0}
      .section-tight{padding:44px 0}
    }