/* roulang page: index */
:root{
      --bg:#050B18;
      --bg2:#07111F;
      --panel:#0B1629;
      --panel2:#101B35;
      --glass:rgba(14,28,52,.62);
      --glass-soft:rgba(255,255,255,.06);
      --text:#EAF2FF;
      --muted:#A7B6CD;
      --weak:#72839A;
      --line:rgba(148,189,255,.16);
      --line-strong:rgba(56,189,248,.42);
      --blue:#38BDF8;
      --cyan:#2DD4FF;
      --gold:#D8B76A;
      --green:#2EE6A6;
      --amber:#F6C85F;
      --danger:#FF7A90;
      --shadow:0 28px 80px rgba(0,0,0,.42);
      --glow:0 0 34px rgba(45,212,255,.25);
      --gold-glow:0 0 30px rgba(216,183,106,.16);
      --radius-xl:32px;
      --radius-lg:24px;
      --radius-md:18px;
      --radius-sm:14px;
      --max:1220px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 8% 4%,rgba(45,212,255,.18),transparent 34%),
        radial-gradient(circle at 88% 12%,rgba(216,183,106,.14),transparent 30%),
        linear-gradient(180deg,var(--bg),#071326 48%,#050B18);
      line-height:1.75;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(148,189,255,.055) 1px,transparent 1px),
        linear-gradient(90deg,rgba(148,189,255,.055) 1px,transparent 1px);
      background-size:44px 44px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.95),transparent 82%);
      z-index:-3;
    }
    body:after{
      content:"M";
      position:fixed;
      right:-40px;
      top:120px;
      font-size:42vw;
      font-weight:800;
      line-height:1;
      color:transparent;
      -webkit-text-stroke:1px rgba(56,189,248,.08);
      text-shadow:0 0 60px rgba(45,212,255,.06);
      pointer-events:none;
      z-index:-2;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer;border:0}
    ::selection{background:rgba(45,212,255,.32);color:#fff}
    .container{width:min(var(--max),calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(5,11,24,.78);
      backdrop-filter:blur(22px);
      border-bottom:1px solid rgba(56,189,248,.18);
      box-shadow:0 12px 40px rgba(0,0,0,.26);
    }
    .site-header:after{
      content:"";
      position:absolute;
      left:0;right:0;bottom:-1px;height:1px;
      background:linear-gradient(90deg,transparent,rgba(45,212,255,.64),rgba(216,183,106,.36),transparent);
    }
    .nav-wrap{
      height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      font-weight:800;
      letter-spacing:.2px;
    }
    .brand-mark{
      width:46px;height:46px;
      display:grid;
      place-items:center;
      border-radius:16px;
      background:linear-gradient(135deg,rgba(45,212,255,.95),rgba(216,183,106,.88));
      box-shadow:0 0 24px rgba(45,212,255,.24),inset 0 0 0 1px rgba(255,255,255,.38);
      color:#06101e;
      font-weight:900;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-text span:first-child{font-size:17px}
    .brand-text span:last-child{font-size:12px;color:var(--muted);font-weight:600;letter-spacing:.8px}
    .nav-links{display:flex;align-items:center;gap:10px}
    .nav-links a{
      position:relative;
      padding:10px 15px;
      border-radius:999px;
      color:var(--muted);
      font-weight:700;
      font-size:15px;
      transition:.25s var(--ease);
    }
    .nav-links a:hover{
      color:var(--text);
      background:rgba(255,255,255,.06);
      box-shadow:inset 0 0 0 1px rgba(148,189,255,.12);
    }
    .nav-links a.active{
      color:#fff;
      background:rgba(45,212,255,.12);
      box-shadow:0 0 18px rgba(45,212,255,.18),inset 0 0 0 1px rgba(45,212,255,.28);
    }
    .nav-links a.active:after{
      content:"";
      position:absolute;
      left:18px;right:18px;bottom:4px;height:2px;
      background:linear-gradient(90deg,var(--cyan),var(--gold));
      border-radius:99px;
      box-shadow:0 0 12px rgba(45,212,255,.75);
    }
    .nav-actions{display:flex;align-items:center;gap:12px}
    .menu-toggle{
      display:none;
      width:46px;height:46px;
      border-radius:15px;
      color:var(--text);
      background:rgba(255,255,255,.06);
      border:1px solid var(--line);
    }
    .menu-toggle span{
      display:block;width:20px;height:2px;
      margin:5px auto;
      border-radius:2px;
      background:var(--text);
      transition:.25s var(--ease);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:46px;
      padding:12px 20px;
      border-radius:999px;
      font-weight:800;
      letter-spacing:.1px;
      transition:.25s var(--ease);
      white-space:nowrap;
      user-select:none;
    }
    .btn:focus-visible,.nav-links a:focus-visible,.faq-q:focus-visible,input:focus-visible,textarea:focus-visible{
      outline:3px solid rgba(45,212,255,.34);
      outline-offset:3px;
    }
    .btn-primary{
      color:#031120;
      background:linear-gradient(135deg,var(--cyan),var(--blue) 55%,#9be8ff);
      box-shadow:0 16px 34px rgba(45,212,255,.22),inset 0 1px 0 rgba(255,255,255,.42);
    }
    .btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 20px 44px rgba(45,212,255,.3)}
    .btn-ghost{
      color:var(--text);
      background:rgba(255,255,255,.055);
      border:1px solid rgba(148,189,255,.22);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
    }
    .btn-ghost:hover{transform:translateY(-2px);border-color:rgba(56,189,248,.52);background:rgba(56,189,248,.08)}
    .btn-gold{
      color:#111827;
      background:linear-gradient(135deg,#f7dd95,var(--gold));
      box-shadow:0 16px 34px rgba(216,183,106,.2),inset 0 1px 0 rgba(255,255,255,.55);
    }
    .btn-gold:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 20px 44px rgba(216,183,106,.26)}
    .hero{
      position:relative;
      padding:92px 0 72px;
      overflow:hidden;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(5,11,24,.45),rgba(5,11,24,.82)),
        url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
      opacity:.42;
      z-index:-2;
    }
    .hero:after{
      content:"";
      position:absolute;
      width:620px;height:620px;
      right:-180px;top:40px;
      border:1px solid rgba(45,212,255,.16);
      border-radius:50%;
      box-shadow:inset 0 0 80px rgba(45,212,255,.06),0 0 70px rgba(216,183,106,.06);
      z-index:-1;
      animation:floatRing 12s linear infinite;
    }
    @keyframes floatRing{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.05fr) minmax(360px,.82fr);
      gap:54px;
      align-items:center;
    }
    .eyebrow,.badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      width:max-content;
      max-width:100%;
      padding:8px 12px;
      border-radius:999px;
      color:#c9f4ff;
      background:rgba(45,212,255,.08);
      border:1px solid rgba(45,212,255,.26);
      font-size:13px;
      font-weight:800;
      letter-spacing:.5px;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
    }
    .eyebrow:before,.badge:before{
      content:"";
      width:8px;height:8px;
      border-radius:50%;
      background:var(--green);
      box-shadow:0 0 14px var(--green);
      flex:0 0 auto;
    }
    h1{
      margin-top:22px;
      max-width:820px;
      font-size:clamp(40px,5.5vw,66px);
      line-height:1.08;
      letter-spacing:-1.4px;
      font-weight:900;
    }
    .gradient-text{
      background:linear-gradient(90deg,#fff 8%,#bfeeff 45%,#f5dc9a 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero-sub{
      margin-top:22px;
      max-width:760px;
      color:var(--muted);
      font-size:18px;
      line-height:1.85;
    }
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}
    .trust-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:24px;
      color:var(--muted);
      font-size:14px;
    }
    .trust-row span{
      padding:8px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(148,189,255,.13);
    }
    .entry-panel{
      position:relative;
      border-radius:var(--radius-xl);
      padding:22px;
      background:linear-gradient(180deg,rgba(14,28,52,.74),rgba(9,19,36,.58));
      border:1px solid rgba(148,189,255,.2);
      box-shadow:var(--shadow),var(--glow);
      backdrop-filter:blur(22px);
      overflow:hidden;
    }
    .entry-panel:before{
      content:"";
      position:absolute;inset:0;
      background:radial-gradient(circle at 20% 0%,rgba(45,212,255,.18),transparent 36%),radial-gradient(circle at 100% 20%,rgba(216,183,106,.13),transparent 28%);
      pointer-events:none;
    }
    .panel-top,.panel-row,.mini-card,.status-card{position:relative}
    .panel-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding-bottom:18px;
      border-bottom:1px solid rgba(148,189,255,.14);
    }
    .panel-title strong{display:block;font-size:28px;letter-spacing:.4px}
    .panel-title small{color:var(--muted);font-weight:700}
    .status-pill{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:8px 10px;
      border-radius:999px;
      background:rgba(46,230,166,.1);
      color:#bdfde8;
      border:1px solid rgba(46,230,166,.24);
      font-size:13px;
      font-weight:800;
    }
    .status-pill:before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--green);box-shadow:0 0 12px var(--green);
    }
    .panel-row{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
      margin-top:18px;
    }
    .mini-card,.status-card{
      border-radius:20px;
      padding:16px;
      background:rgba(255,255,255,.055);
      border:1px solid rgba(148,189,255,.15);
      transition:.25s var(--ease);
    }
    .mini-card:hover,.status-card:hover{transform:translateY(-4px);border-color:rgba(45,212,255,.38)}
    .mini-card span{display:block;color:var(--weak);font-size:13px;font-weight:800}
    .mini-card strong{display:block;margin-top:6px;font-size:20px}
    .panel-list{margin-top:18px;display:grid;gap:10px}
    .status-card{
      display:flex;
      justify-content:space-between;
      gap:12px;
      align-items:center;
    }
    .status-card b{font-size:15px}
    .status-card em{
      font-style:normal;
      color:var(--gold);
      font-size:13px;
      font-weight:900;
    }
    main{position:relative}
    .section{padding:96px 0}
    .section.tight{padding:72px 0}
    .section-head{max-width:820px;margin-bottom:34px}
    .section-kicker{
      color:var(--gold);
      font-size:13px;
      font-weight:900;
      letter-spacing:1.2px;
      text-transform:uppercase;
      margin-bottom:10px;
    }
    h2{
      font-size:clamp(30px,4vw,44px);
      line-height:1.18;
      letter-spacing:-.7px;
      font-weight:900;
    }
    .section-desc{
      margin-top:14px;
      color:var(--muted);
      font-size:17px;
      max-width:790px;
    }
    .pain-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 420px;
      gap:28px;
      align-items:start;
    }
    .problem-list{display:grid;gap:16px}
    .problem-item{
      display:grid;
      grid-template-columns:78px 1fr;
      gap:18px;
      align-items:start;
      padding:22px;
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.045);
      border:1px solid var(--line);
      transition:.25s var(--ease);
    }
    .problem-item:hover{transform:translateX(5px);border-color:rgba(45,212,255,.36);background:rgba(45,212,255,.055)}
    .problem-num{
      color:var(--cyan);
      font-weight:900;
      font-size:24px;
      text-shadow:0 0 18px rgba(45,212,255,.38);
    }
    .problem-item h3{font-size:21px;line-height:1.25;margin-bottom:8px}
    .problem-item p{color:var(--muted)}
    .risk-panel{
      position:sticky;
      top:104px;
      border-radius:var(--radius-xl);
      padding:24px;
      background:linear-gradient(180deg,rgba(16,27,53,.78),rgba(11,22,41,.66));
      border:1px solid rgba(246,200,95,.24);
      box-shadow:var(--shadow),var(--gold-glow);
      overflow:hidden;
    }
    .risk-panel:before{
      content:"";
      position:absolute;
      width:180px;height:180px;
      right:-70px;top:-70px;
      background:radial-gradient(circle,rgba(216,183,106,.2),transparent 70%);
    }
    .risk-panel h3{font-size:24px;margin-bottom:12px}
    .risk-panel p{position:relative;color:var(--muted)}
    .tag-grid{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
    .tag{
      display:inline-flex;
      align-items:center;
      padding:8px 10px;
      border-radius:999px;
      color:#dff6ff;
      background:rgba(56,189,248,.075);
      border:1px solid rgba(56,189,248,.2);
      font-size:13px;
      font-weight:800;
    }
    .solution-wrap{
      display:grid;
      grid-template-columns:420px minmax(0,1fr);
      gap:32px;
      align-items:center;
    }
    .image-card{
      position:relative;
      min-height:520px;
      border-radius:var(--radius-xl);
      overflow:hidden;
      background:var(--panel);
      border:1px solid var(--line);
      box-shadow:var(--shadow);
    }
    .image-card img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
    .image-card:after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(5,11,24,.05),rgba(5,11,24,.78));
    }
    .image-caption{
      position:absolute;
      left:22px;right:22px;bottom:22px;
      z-index:2;
      padding:18px;
      border-radius:22px;
      background:rgba(5,11,24,.58);
      border:1px solid rgba(255,255,255,.13);
      backdrop-filter:blur(16px);
    }
    .image-caption strong{display:block;font-size:22px}
    .image-caption span{display:block;color:var(--muted);margin-top:6px}
    .flow-list{display:grid;gap:18px}
    .flow-item{
      position:relative;
      display:grid;
      grid-template-columns:54px 1fr;
      gap:18px;
      padding:22px;
      border-radius:var(--radius-lg);
      background:rgba(14,28,52,.58);
      border:1px solid var(--line);
      overflow:hidden;
      transition:.25s var(--ease);
    }
    .flow-item:before{
      content:"";
      position:absolute;
      left:48px;top:76px;bottom:-20px;
      width:1px;
      background:linear-gradient(var(--cyan),transparent);
      opacity:.35;
    }
    .flow-item:last-child:before{display:none}
    .flow-item:hover{transform:translateY(-5px);border-color:rgba(45,212,255,.36)}
    .flow-icon{
      width:54px;height:54px;
      display:grid;
      place-items:center;
      border-radius:18px;
      background:rgba(45,212,255,.12);
      border:1px solid rgba(45,212,255,.3);
      color:#dff9ff;
      font-weight:900;
      box-shadow:0 0 18px rgba(45,212,255,.14);
    }
    .flow-item h3{font-size:22px;margin-bottom:7px}
    .flow-item p{color:var(--muted)}
    .entry-category{
      display:grid;
      grid-template-columns:minmax(0,1fr) 360px;
      gap:28px;
      align-items:stretch;
    }
    .feature-cover{
      position:relative;
      min-height:360px;
      border-radius:var(--radius-xl);
      overflow:hidden;
      border:1px solid var(--line);
      box-shadow:var(--shadow);
    }
    .feature-cover img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
    .feature-cover:after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(90deg,rgba(5,11,24,.86),rgba(5,11,24,.26)),linear-gradient(180deg,transparent,rgba(5,11,24,.68));
    }
    .feature-content{
      position:absolute;
      z-index:2;
      left:28px;right:28px;bottom:26px;
      max-width:650px;
    }
    .feature-content h3{font-size:30px;line-height:1.18;margin:12px 0}
    .feature-content p{color:var(--muted);max-width:620px}
    .guide-card{
      padding:26px;
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg,rgba(14,28,52,.7),rgba(255,255,255,.045));
      border:1px solid rgba(148,189,255,.18);
      box-shadow:var(--shadow);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap:24px;
    }
    .guide-card h3{font-size:26px;line-height:1.25}
    .guide-card p{color:var(--muted)}
    .guide-points{display:grid;gap:10px;margin-top:16px}
    .guide-points li{
      list-style:none;
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:var(--muted);
    }
    .guide-points li:before{
      content:"";
      width:8px;height:8px;
      margin-top:10px;
      border-radius:50%;
      background:var(--gold);
      box-shadow:0 0 12px rgba(216,183,106,.46);
      flex:0 0 auto;
    }
    .data-band{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
      padding:18px;
      border-radius:var(--radius-xl);
      background:rgba(255,255,255,.045);
      border:1px solid var(--line);
      box-shadow:var(--shadow);
    }
    .metric{
      padding:22px;
      border-radius:22px;
      background:rgba(14,28,52,.64);
      border:1px solid rgba(148,189,255,.13);
      transition:.25s var(--ease);
    }
    .metric:hover{transform:translateY(-5px);border-color:rgba(45,212,255,.34)}
    .metric strong{
      display:block;
      font-size:34px;
      line-height:1;
      color:#dff8ff;
      text-shadow:0 0 22px rgba(45,212,255,.22);
    }
    .metric span{display:block;color:var(--muted);margin-top:10px;font-size:14px}
    .note-card{
      margin-top:18px;
      padding:18px 20px;
      border-radius:20px;
      border:1px solid rgba(246,200,95,.2);
      background:rgba(246,200,95,.075);
      color:#f6e7bd;
    }
    .review-strip{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:24px;
      align-items:stretch;
    }
    .review-main,.review-side{
      border-radius:var(--radius-xl);
      background:rgba(14,28,52,.62);
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .review-main{
      display:grid;
      grid-template-columns:280px 1fr;
      min-height:330px;
    }
    .review-main img{width:100%;height:100%;object-fit:cover}
    .review-text{padding:28px}
    .quote{
      font-size:22px;
      line-height:1.55;
      font-weight:800;
      color:#f4f8ff;
    }
    .review-text p,.review-side p{color:var(--muted);margin-top:14px}
    .review-user{margin-top:22px;color:var(--gold);font-weight:900}
    .review-side{padding:26px;display:grid;gap:18px}
    .scenario{
      padding:16px;
      border-radius:20px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(148,189,255,.13);
    }
    .scenario b{display:block;margin-bottom:6px}
    .scenario span{color:var(--muted)}
    .timeline{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
      counter-reset:step;
    }
    .time-card{
      position:relative;
      min-height:210px;
      padding:24px;
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg,rgba(16,27,53,.72),rgba(255,255,255,.045));
      border:1px solid var(--line);
      overflow:hidden;
      transition:.25s var(--ease);
    }
    .time-card:hover{transform:translateY(-5px);border-color:rgba(216,183,106,.36)}
    .time-card:before{
      counter-increment:step;
      content:"0" counter(step);
      position:absolute;
      right:18px;top:12px;
      font-size:52px;
      font-weight:900;
      color:rgba(45,212,255,.1);
      line-height:1;
    }
    .time-card h3{font-size:22px;margin-bottom:10px}
    .time-card p{color:var(--muted)}
    .faq-grid{
      display:grid;
      grid-template-columns:380px 1fr;
      gap:30px;
      align-items:start;
    }
    .faq-intro{
      padding:26px;
      border-radius:var(--radius-xl);
      background:rgba(14,28,52,.58);
      border:1px solid var(--line);
      position:sticky;
      top:104px;
    }
    .faq-intro p{color:var(--muted);margin-top:12px}
    .faq-list{display:grid;gap:12px}
    .faq-item{
      border-radius:22px;
      background:rgba(255,255,255,.045);
      border:1px solid var(--line);
      overflow:hidden;
      transition:.25s var(--ease);
    }
    .faq-item.active{border-color:rgba(45,212,255,.34);background:rgba(45,212,255,.055)}
    .faq-q{
      width:100%;
      min-height:58px;
      padding:18px 20px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      color:var(--text);
      background:transparent;
      text-align:left;
      font-weight:900;
    }
    .faq-q span:last-child{
      width:28px;height:28px;
      display:grid;place-items:center;
      border-radius:50%;
      background:rgba(45,212,255,.1);
      color:var(--cyan);
      transition:.25s var(--ease);
      flex:0 0 auto;
    }
    .faq-item.active .faq-q span:last-child{transform:rotate(45deg);background:rgba(216,183,106,.16);color:var(--gold)}
    .faq-a{
      max-height:0;
      overflow:hidden;
      transition:max-height .28s var(--ease);
    }
    .faq-a p{
      margin:0 20px 20px;
      padding:14px 0 0 16px;
      border-left:3px solid rgba(45,212,255,.5);
      color:var(--muted);
    }
    .contact-panel{
      display:grid;
      grid-template-columns:minmax(0,1fr) 420px;
      gap:26px;
      align-items:stretch;
    }
    .cta-banner{
      position:relative;
      padding:34px;
      border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg,rgba(14,28,52,.82),rgba(16,27,53,.54)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      border:1px solid rgba(45,212,255,.2);
      box-shadow:var(--shadow),var(--glow);
      overflow:hidden;
    }
    .cta-banner:after{
      content:"";
      position:absolute;inset:0;
      background:radial-gradient(circle at 80% 20%,rgba(216,183,106,.16),transparent 32%);
      pointer-events:none;
    }
    .cta-banner>*{position:relative;z-index:1}
    .cta-banner h2{max-width:760px}
    .cta-banner p{max-width:760px;color:var(--muted);margin-top:14px}
    .cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
    .feedback-form{
      padding:26px;
      border-radius:var(--radius-xl);
      background:rgba(14,28,52,.62);
      border:1px solid var(--line);
      box-shadow:var(--shadow);
    }
    .feedback-form h3{font-size:24px;margin-bottom:6px}
    .feedback-form p{color:var(--muted);margin-bottom:18px}
    .form-field{display:grid;gap:7px;margin-bottom:14px}
    .form-field label{color:#d9e8ff;font-weight:800;font-size:14px}
    .form-field input,.form-field textarea{
      width:100%;
      border:1px solid rgba(148,189,255,.18);
      border-radius:16px;
      background:rgba(5,11,24,.48);
      color:var(--text);
      padding:13px 14px;
      outline:none;
      transition:.25s var(--ease);
    }
    .form-field textarea{min-height:108px;resize:vertical}
    .form-field input:focus,.form-field textarea:focus{
      border-color:rgba(45,212,255,.58);
      box-shadow:0 0 0 4px rgba(45,212,255,.12);
    }
    .site-footer{
      padding:60px 0 28px;
      background:linear-gradient(180deg,rgba(5,11,24,0),rgba(3,8,18,.92) 20%);
      border-top:1px solid rgba(148,189,255,.12);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:28px;
      padding-bottom:32px;
    }
    .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px;font-weight:900}
    .footer-brand .brand-mark{width:42px;height:42px;border-radius:15px}
    .footer-text{color:var(--muted);max-width:520px}
    .footer-col h3{font-size:17px;margin-bottom:12px}
    .footer-links{display:grid;gap:10px}
    .footer-links a,.footer-links span{
      color:var(--muted);
      transition:.25s var(--ease);
    }
    .footer-links a:hover{color:var(--cyan);transform:translateX(3px)}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      padding-top:24px;
      border-top:1px solid rgba(148,189,255,.12);
      color:var(--weak);
      font-size:14px;
    }
    .reveal{animation:rise .6s var(--ease) both}
    @keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
    @media (max-width:1024px){
      .nav-links{
        position:fixed;
        left:20px;right:20px;top:88px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:16px;
        border-radius:24px;
        background:rgba(5,11,24,.94);
        border:1px solid rgba(45,212,255,.22);
        box-shadow:var(--shadow);
        backdrop-filter:blur(22px);
      }
      .nav-links.open{display:flex}
      .nav-links a{padding:14px 16px}
      .menu-toggle{display:block}
      .nav-actions .btn{display:none}
      .hero-grid,.pain-layout,.solution-wrap,.entry-category,.review-strip,.faq-grid,.contact-panel{grid-template-columns:1fr}
      .risk-panel,.faq-intro{position:relative;top:auto}
      .solution-wrap .image-card{min-height:420px;order:2}
      .data-band{grid-template-columns:repeat(2,1fr)}
      .timeline{grid-template-columns:1fr}
      .review-main{grid-template-columns:1fr}
      .review-main img{height:260px}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--max))}
      .nav-wrap{height:68px}
      .brand-mark{width:40px;height:40px;border-radius:14px}
      .brand-text span:first-child{font-size:15px}
      .brand-text span:last-child{font-size:11px}
      .hero{padding:68px 0 52px}
      h1{font-size:clamp(34px,10vw,42px);letter-spacing:-.8px}
      .hero-sub,.section-desc{font-size:16px}
      .section{padding:64px 0}
      .section.tight{padding:52px 0}
      .entry-panel,.risk-panel,.guide-card,.cta-banner,.feedback-form{border-radius:24px;padding:20px}
      .panel-row,.data-band{grid-template-columns:1fr}
      .problem-item{grid-template-columns:1fr;gap:8px}
      .hero-actions,.cta-actions{flex-direction:column}
      .btn{width:100%}
      .feature-cover{min-height:440px}
      .feature-content{left:20px;right:20px;bottom:20px}
      .feature-content h3{font-size:25px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column}
    }
    @media (max-width:520px){
      .trust-row span{width:100%}
      .status-card{align-items:flex-start;flex-direction:column}
      .metric strong{font-size:30px}
      .quote{font-size:19px}
      .faq-q{font-size:15px;padding:16px}
    }

/* roulang page: category1 */
:root{
      --bg:#050B18;
      --bg-2:#07111F;
      --panel:#0B1629;
      --panel-2:#101B35;
      --glass:rgba(14,28,52,.62);
      --glass-soft:rgba(255,255,255,.065);
      --line:rgba(148,189,255,.16);
      --line-strong:rgba(56,189,248,.42);
      --text:#EAF2FF;
      --muted:#A7B6CD;
      --weak:#72839A;
      --blue:#38BDF8;
      --cyan:#2DD4FF;
      --gold:#D8B76A;
      --green:#2EE6A6;
      --amber:#F6C85F;
      --danger:#FF8B8B;
      --shadow:0 24px 80px rgba(0,0,0,.42);
      --glow-blue:0 0 32px rgba(45,212,255,.28);
      --glow-gold:0 0 34px rgba(216,183,106,.18);
      --radius-lg:30px;
      --radius-md:22px;
      --radius-sm:14px;
      --container:1220px;
      --header-h:78px;
      --ease:cubic-bezier(.2,.8,.2,1);
      --font:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      line-height:1.75;
      background:
        radial-gradient(circle at 8% 2%,rgba(45,212,255,.16),transparent 34%),
        radial-gradient(circle at 88% 10%,rgba(216,183,106,.12),transparent 31%),
        linear-gradient(180deg,var(--bg),var(--bg-2) 48%,#050914);
      min-height:100vh;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.42;
      background-image:
        linear-gradient(rgba(56,189,248,.055) 1px,transparent 1px),
        linear-gradient(90deg,rgba(56,189,248,.055) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom,black,transparent 82%);
      z-index:-2;
    }
    body::after{
      content:"MGM";
      position:fixed;
      right:-72px;
      top:118px;
      font-size:210px;
      line-height:1;
      letter-spacing:.08em;
      font-weight:900;
      color:transparent;
      -webkit-text-stroke:1px rgba(216,183,106,.08);
      text-stroke:1px rgba(216,183,106,.08);
      pointer-events:none;
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(45,212,255,.28);color:#fff}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .skip-link{
      position:absolute;left:16px;top:-80px;z-index:999;
      background:var(--cyan);color:#03101d;padding:10px 14px;border-radius:999px;font-weight:800;
      transition:top .2s var(--ease)
    }
    .skip-link:focus{top:14px;outline:3px solid rgba(216,183,106,.8)}
    .site-header{
      position:sticky;top:0;z-index:100;
      height:var(--header-h);
      background:rgba(5,11,24,.78);
      border-bottom:1px solid rgba(56,189,248,.18);
      backdrop-filter:blur(22px);
      box-shadow:0 18px 50px rgba(0,0,0,.24);
    }
    .site-header::after{
      content:"";
      position:absolute;left:0;right:0;bottom:-1px;height:1px;
      background:linear-gradient(90deg,transparent,rgba(45,212,255,.64),rgba(216,183,106,.38),transparent);
      opacity:.75;
    }
    .nav-wrap{
      height:var(--header-h);
      display:flex;align-items:center;justify-content:space-between;gap:22px;
    }
    .brand{
      display:inline-flex;align-items:center;gap:12px;min-width:max-content;
      font-weight:900;letter-spacing:.01em;
    }
    .brand-mark,.footer-brand .brand-mark{
      width:42px;height:42px;border-radius:14px;
      display:inline-flex;align-items:center;justify-content:center;
      color:#06101c;font-weight:950;
      background:
        linear-gradient(135deg,var(--cyan),#7ddfff 42%,var(--gold));
      box-shadow:var(--glow-blue),inset 0 0 0 1px rgba(255,255,255,.5);
      position:relative;
    }
    .brand-mark::after{
      content:"";
      position:absolute;inset:7px;border:1px solid rgba(5,11,24,.5);border-radius:9px;
    }
    .brand-text{display:flex;flex-direction:column;gap:1px}
    .brand-text strong{font-size:17px;line-height:1.1}
    .brand-text span{font-size:12px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
    .nav-links{
      display:flex;align-items:center;justify-content:center;gap:8px;
      padding:7px;
      border:1px solid rgba(148,189,255,.12);
      background:rgba(255,255,255,.035);
      border-radius:999px;
    }
    .nav-links a{
      position:relative;
      display:inline-flex;align-items:center;justify-content:center;
      min-height:42px;padding:0 18px;border-radius:999px;
      color:var(--muted);font-size:14px;font-weight:800;
      transition:color .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
    }
    .nav-links a:hover{
      color:var(--text);
      background:rgba(56,189,248,.09);
      transform:translateY(-1px);
    }
    .nav-links a.active{
      color:#fff;
      background:linear-gradient(180deg,rgba(56,189,248,.18),rgba(56,189,248,.07));
      box-shadow:inset 0 0 0 1px rgba(56,189,248,.28),0 0 24px rgba(45,212,255,.16);
    }
    .nav-links a.active::after{
      content:"";
      position:absolute;left:22px;right:22px;bottom:4px;height:2px;border-radius:999px;
      background:linear-gradient(90deg,var(--cyan),var(--gold));
      box-shadow:0 0 14px rgba(45,212,255,.5);
    }
    .nav-cta{
      display:inline-flex;align-items:center;justify-content:center;
      min-height:44px;padding:0 18px;border-radius:999px;
      color:#04101c;font-weight:900;font-size:14px;
      background:linear-gradient(135deg,var(--cyan),var(--gold));
      box-shadow:0 14px 38px rgba(45,212,255,.18),0 0 0 1px rgba(255,255,255,.18) inset;
      transition:transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease);
    }
    .nav-cta:hover{transform:translateY(-2px);filter:brightness(1.07);box-shadow:0 18px 50px rgba(45,212,255,.28)}
    .menu-toggle{
      display:none;width:46px;height:46px;border-radius:15px;
      background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--text);
      align-items:center;justify-content:center;gap:5px;flex-direction:column;
    }
    .menu-toggle span{width:20px;height:2px;border-radius:999px;background:var(--text);transition:.2s var(--ease)}
    .menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
    .menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
    .menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
    main{position:relative}
    .section{padding:96px 0}
    .section-tight{padding:72px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:9px;
      min-height:34px;padding:6px 12px;border-radius:999px;
      color:#dff7ff;font-size:13px;font-weight:850;letter-spacing:.04em;
      background:rgba(45,212,255,.08);
      border:1px solid rgba(56,189,248,.24);
      box-shadow:inset 0 0 18px rgba(45,212,255,.035);
    }
    .eyebrow::before{
      content:"";width:8px;height:8px;border-radius:50%;
      background:var(--green);box-shadow:0 0 18px rgba(46,230,166,.72);
    }
    .btn-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:50px;padding:0 22px;border-radius:999px;
      font-weight:900;font-size:15px;
      transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
      user-select:none;
    }
    .btn:focus-visible,.nav-links a:focus-visible,.nav-cta:focus-visible,.faq-question:focus-visible,.toc a:focus-visible,input:focus-visible,textarea:focus-visible{
      outline:3px solid rgba(45,212,255,.42);
      outline-offset:3px;
    }
    .btn-primary{
      color:#03101d;
      background:linear-gradient(135deg,var(--cyan),#7ddfff 55%,var(--gold));
      box-shadow:0 18px 50px rgba(45,212,255,.22),inset 0 0 0 1px rgba(255,255,255,.35);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 24px 65px rgba(45,212,255,.32)}
    .btn-ghost{
      color:var(--text);
      background:rgba(255,255,255,.055);
      border:1px solid rgba(148,189,255,.22);
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.03);
    }
    .btn-ghost:hover{transform:translateY(-2px);border-color:rgba(56,189,248,.5);background:rgba(56,189,248,.09);box-shadow:var(--glow-blue)}
    .btn-gold{
      color:#15100a;background:linear-gradient(135deg,#f4d78d,var(--gold));
      box-shadow:0 18px 48px rgba(216,183,106,.18)
    }
    .btn-gold:hover{transform:translateY(-2px);filter:brightness(1.06)}
    .guide-hero{
      padding:54px 0 42px;
      position:relative;
      overflow:hidden;
    }
    .guide-hero::before{
      content:"";
      position:absolute;inset:0;
      background:
        linear-gradient(90deg,rgba(5,11,24,.92),rgba(5,11,24,.68)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      opacity:.88;
      z-index:-2;
    }
    .guide-hero::after{
      content:"";
      position:absolute;inset:0;
      background:
        radial-gradient(circle at 72% 28%,rgba(216,183,106,.16),transparent 28%),
        radial-gradient(circle at 28% 15%,rgba(45,212,255,.18),transparent 34%),
        linear-gradient(180deg,transparent,rgba(5,11,24,.78));
      z-index:-1;
    }
    .breadcrumbs{
      display:flex;align-items:center;gap:10px;flex-wrap:wrap;
      color:var(--muted);font-size:14px;margin-bottom:30px;
    }
    .breadcrumbs a{color:var(--muted);transition:color .2s var(--ease)}
    .breadcrumbs a:hover{color:var(--cyan)}
    .breadcrumbs span[aria-hidden="true"]{color:rgba(167,182,205,.45)}
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.05fr) minmax(330px,.65fr);
      gap:36px;align-items:end;
      min-height:440px;
    }
    .hero-copy h1{
      margin:18px 0 18px;
      font-size:clamp(36px,5vw,62px);
      line-height:1.1;
      letter-spacing:-.055em;
      max-width:860px;
    }
    .hero-copy p{
      margin:0 0 24px;
      max-width:760px;
      color:var(--muted);
      font-size:18px;
    }
    .hero-note{
      display:flex;align-items:center;gap:12px;flex-wrap:wrap;
      margin-top:22px;color:var(--weak);font-size:14px;
    }
    .note-pill{
      display:inline-flex;align-items:center;gap:7px;
      border:1px solid rgba(148,189,255,.16);
      background:rgba(255,255,255,.045);
      border-radius:999px;padding:7px 11px;
    }
    .note-pill i{width:6px;height:6px;border-radius:50%;background:var(--gold);box-shadow:0 0 14px rgba(216,183,106,.55)}
    .summary-card{
      border:1px solid rgba(148,189,255,.18);
      background:linear-gradient(180deg,rgba(14,28,52,.78),rgba(14,28,52,.48));
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow),var(--glow-blue);
      backdrop-filter:blur(22px);
      padding:24px;
      position:relative;
      overflow:hidden;
    }
    .summary-card::before,.glass-card::before,.guide-card::before,.side-panel::before,.cta-panel::before{
      content:"";
      position:absolute;left:18px;right:18px;top:0;height:1px;
      background:linear-gradient(90deg,transparent,rgba(56,189,248,.6),rgba(216,183,106,.42),transparent);
    }
    .summary-card h2{margin:0 0 16px;font-size:22px;line-height:1.25}
    .summary-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}
    .summary-list li{
      display:grid;grid-template-columns:36px 1fr;gap:12px;align-items:start;
      padding:14px;border-radius:18px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(148,189,255,.12);
    }
    .summary-list b{
      width:36px;height:36px;border-radius:13px;
      display:flex;align-items:center;justify-content:center;
      color:#03101d;background:linear-gradient(135deg,var(--cyan),var(--gold));
      font-size:13px;
    }
    .summary-list strong{display:block;line-height:1.2;margin-bottom:2px}
    .summary-list span{display:block;color:var(--muted);font-size:14px;line-height:1.55}
    .toc-wrap{
      position:sticky;top:calc(var(--header-h) + 10px);z-index:20;
      padding:14px 0;
      background:linear-gradient(180deg,rgba(5,11,24,.94),rgba(5,11,24,.7),transparent);
      backdrop-filter:blur(12px);
      border-bottom:1px solid rgba(148,189,255,.08);
    }
    .toc{
      display:flex;gap:10px;align-items:center;overflow:auto;padding:4px 0 8px;
      scrollbar-width:none;
    }
    .toc::-webkit-scrollbar{display:none}
    .toc a{
      white-space:nowrap;
      display:inline-flex;align-items:center;gap:8px;
      padding:9px 14px;border-radius:999px;
      color:var(--muted);
      background:rgba(255,255,255,.045);
      border:1px solid rgba(148,189,255,.14);
      font-size:14px;font-weight:850;
      transition:.2s var(--ease);
    }
    .toc a:hover,.toc a.is-current{
      color:#fff;border-color:rgba(56,189,248,.42);
      background:rgba(56,189,248,.10);
      box-shadow:0 0 22px rgba(45,212,255,.12);
    }
    .section-head{
      display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px;
    }
    .section-title{max-width:760px}
    .section-title h2{
      margin:12px 0 12px;
      font-size:clamp(30px,4vw,44px);
      line-height:1.18;
      letter-spacing:-.035em;
    }
    .section-title p{margin:0;color:var(--muted);font-size:17px;max-width:820px}
    .content-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 350px;
      gap:28px;align-items:start;
    }
    .guide-stack{display:grid;gap:18px}
    .guide-card{
      position:relative;overflow:hidden;
      display:grid;grid-template-columns:220px minmax(0,1fr);
      gap:22px;padding:18px;
      background:linear-gradient(180deg,rgba(14,28,52,.66),rgba(14,28,52,.42));
      border:1px solid rgba(148,189,255,.16);
      border-radius:var(--radius-md);
      box-shadow:0 18px 60px rgba(0,0,0,.24);
      backdrop-filter:blur(18px);
      transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
    }
    .guide-card:hover{
      transform:translateY(-5px);
      border-color:rgba(56,189,248,.42);
      box-shadow:0 26px 74px rgba(0,0,0,.32),0 0 28px rgba(45,212,255,.12);
    }
    .guide-card.is-featured{
      grid-template-columns:300px minmax(0,1fr);
      padding:20px;
      border-color:rgba(216,183,106,.24);
      background:linear-gradient(135deg,rgba(16,27,53,.78),rgba(14,28,52,.46));
    }
    .guide-media{
      min-height:170px;border-radius:18px;overflow:hidden;position:relative;
      background:#081425;
    }
    .guide-media img{width:100%;height:100%;object-fit:cover;filter:saturate(1.06) contrast(1.03)}
    .guide-media::after{
      content:"";position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(5,11,24,.12),rgba(5,11,24,.64));
    }
    .guide-body{padding:4px 4px 4px 0}
    .meta-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
    .tag{
      display:inline-flex;align-items:center;gap:7px;
      padding:6px 10px;border-radius:999px;
      color:#dff7ff;font-size:12px;font-weight:900;letter-spacing:.03em;
      background:rgba(56,189,248,.09);
      border:1px solid rgba(56,189,248,.22);
    }
    .tag.gold{color:#fff2ce;background:rgba(216,183,106,.11);border-color:rgba(216,183,106,.26)}
    .tag.green{color:#d9fff2;background:rgba(46,230,166,.09);border-color:rgba(46,230,166,.24)}
    .readtime{color:var(--weak);font-size:13px;font-weight:750}
    .guide-body h3{margin:0 0 8px;font-size:24px;line-height:1.28;letter-spacing:-.02em}
    .guide-body p{margin:0;color:var(--muted);font-size:16px}
    .guide-points{margin:14px 0 0;padding:0;list-style:none;display:grid;gap:8px}
    .guide-points li{display:flex;gap:9px;color:var(--muted);font-size:14px;line-height:1.55}
    .guide-points li::before{
      content:"";width:7px;height:7px;border-radius:50%;flex:0 0 auto;margin-top:8px;
      background:var(--cyan);box-shadow:0 0 12px rgba(45,212,255,.45);
    }
    .side-panel{
      position:sticky;top:calc(var(--header-h) + 86px);
      border:1px solid rgba(148,189,255,.16);
      background:rgba(14,28,52,.56);
      border-radius:var(--radius-md);
      box-shadow:var(--shadow);
      backdrop-filter:blur(18px);
      padding:22px;
      overflow:hidden;
    }
    .side-panel h3{margin:0 0 12px;font-size:20px}
    .keyword-cloud{display:flex;flex-wrap:wrap;gap:9px;margin:0 0 18px}
    .keyword-cloud span{
      display:inline-flex;padding:7px 10px;border-radius:999px;
      background:rgba(255,255,255,.045);border:1px solid rgba(148,189,255,.14);
      color:var(--muted);font-size:13px;font-weight:800;
    }
    .side-note{
      border-radius:18px;
      padding:15px;
      background:rgba(246,200,95,.08);
      border:1px solid rgba(246,200,95,.18);
      color:#f8e7b9;
      font-size:14px;line-height:1.65;
    }
    .mini-steps{display:grid;gap:10px;margin:18px 0 0}
    .mini-step{
      display:flex;align-items:flex-start;gap:10px;
      color:var(--muted);font-size:14px;line-height:1.55;
    }
    .mini-step b{
      width:24px;height:24px;border-radius:8px;flex:0 0 auto;
      display:flex;align-items:center;justify-content:center;
      background:rgba(45,212,255,.13);color:var(--cyan);font-size:12px;
      border:1px solid rgba(56,189,248,.22);
    }
    .glass-card{
      position:relative;overflow:hidden;
      border:1px solid rgba(148,189,255,.16);
      background:rgba(14,28,52,.56);
      border-radius:var(--radius-md);
      padding:24px;
      box-shadow:0 18px 58px rgba(0,0,0,.22);
      backdrop-filter:blur(18px);
      transition:.22s var(--ease);
    }
    .glass-card:hover{transform:translateY(-4px);border-color:rgba(56,189,248,.36);box-shadow:0 22px 66px rgba(0,0,0,.3)}
    .insight-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:24px;align-items:stretch;
    }
    .large-photo{
      border-radius:var(--radius-lg);
      min-height:390px;overflow:hidden;position:relative;
      border:1px solid rgba(148,189,255,.16);
      box-shadow:var(--shadow);
    }
    .large-photo img{width:100%;height:100%;object-fit:cover}
    .large-photo::after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(5,11,24,.18),rgba(5,11,24,.82));
    }
    .photo-caption{
      position:absolute;left:22px;right:22px;bottom:22px;z-index:2;
      display:grid;gap:8px;
    }
    .photo-caption strong{font-size:24px;line-height:1.25}
    .photo-caption span{color:var(--muted);font-size:15px}
    .check-list{margin:0;padding:0;list-style:none;display:grid;gap:12px}
    .check-list li{
      display:grid;grid-template-columns:30px 1fr;gap:12px;align-items:start;
      padding:14px;border-radius:18px;
      background:rgba(255,255,255,.04);border:1px solid rgba(148,189,255,.12);
    }
    .check-list i{
      width:30px;height:30px;border-radius:11px;
      display:flex;align-items:center;justify-content:center;
      font-style:normal;color:#03101d;font-weight:950;
      background:linear-gradient(135deg,var(--green),var(--cyan));
    }
    .check-list strong{display:block;margin-bottom:3px}
    .check-list span{display:block;color:var(--muted);font-size:14px;line-height:1.6}
    .timeline{
      position:relative;
      display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
    }
    .timeline::before{
      content:"";
      position:absolute;left:8%;right:8%;top:44px;height:1px;
      background:linear-gradient(90deg,rgba(45,212,255,.2),rgba(216,183,106,.44),rgba(45,212,255,.2));
    }
    .step-card{
      position:relative;z-index:1;
      padding:22px;border-radius:var(--radius-md);
      background:linear-gradient(180deg,rgba(14,28,52,.66),rgba(14,28,52,.42));
      border:1px solid rgba(148,189,255,.16);
      box-shadow:0 16px 54px rgba(0,0,0,.22);
    }
    .step-num{
      width:54px;height:54px;border-radius:18px;
      display:flex;align-items:center;justify-content:center;
      color:#03101d;font-size:18px;font-weight:950;
      background:linear-gradient(135deg,var(--cyan),var(--gold));
      box-shadow:0 0 28px rgba(45,212,255,.18);
      margin-bottom:18px;
    }
    .step-card h3{margin:0 0 9px;font-size:21px}
    .step-card p{margin:0;color:var(--muted);font-size:15px}
    .metric-strip{
      display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
      padding:16px;border:1px solid rgba(148,189,255,.14);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.04);
    }
    .metric{
      padding:18px;border-radius:22px;
      background:rgba(14,28,52,.52);
      border:1px solid rgba(148,189,255,.12);
    }
    .metric strong{
      display:block;
      font-size:32px;line-height:1;
      color:var(--cyan);
      text-shadow:0 0 20px rgba(45,212,255,.24);
      margin-bottom:9px;
    }
    .metric span{display:block;color:var(--muted);font-size:14px;line-height:1.55}
    .metric small{display:block;color:var(--weak);font-size:12px;margin-top:8px}
    .faq-grid{
      display:grid;grid-template-columns:.82fr 1.18fr;gap:28px;align-items:start;
    }
    .faq-intro{
      border-radius:var(--radius-lg);
      padding:28px;
      background:linear-gradient(180deg,rgba(16,27,53,.78),rgba(14,28,52,.44));
      border:1px solid rgba(216,183,106,.18);
      box-shadow:var(--shadow);
    }
    .faq-intro h2{font-size:36px;line-height:1.18;margin:12px 0}
    .faq-intro p{margin:0;color:var(--muted)}
    .faq-list{display:grid;gap:12px}
    .faq-item{
      border:1px solid rgba(148,189,255,.15);
      background:rgba(14,28,52,.56);
      border-radius:20px;
      overflow:hidden;
      transition:border-color .2s var(--ease),background .2s var(--ease);
    }
    .faq-item:hover{border-color:rgba(56,189,248,.34)}
    .faq-question{
      width:100%;min-height:58px;
      display:flex;align-items:center;justify-content:space-between;gap:14px;
      padding:16px 18px;
      background:transparent;color:var(--text);text-align:left;font-weight:900;
    }
    .faq-icon{
      width:28px;height:28px;border-radius:10px;flex:0 0 auto;
      display:flex;align-items:center;justify-content:center;
      background:rgba(56,189,248,.1);color:var(--cyan);
      transition:transform .2s var(--ease),background .2s var(--ease);
    }
    .faq-answer{
      display:none;
      padding:0 18px 18px 18px;
      color:var(--muted);
    }
    .faq-answer p{
      margin:0;
      padding:14px 0 0 16px;
      border-left:2px solid rgba(45,212,255,.5);
      line-height:1.7;
    }
    .faq-item.open{
      background:rgba(56,189,248,.055);
      border-color:rgba(56,189,248,.36);
    }
    .faq-item.open .faq-icon{transform:rotate(45deg);background:rgba(216,183,106,.14);color:var(--gold)}
    .faq-item.open .faq-answer{display:block}
    .cta-panel{
      position:relative;overflow:hidden;
      border-radius:34px;
      padding:42px;
      background:
        linear-gradient(90deg,rgba(5,11,24,.86),rgba(5,11,24,.62)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      border:1px solid rgba(148,189,255,.18);
      box-shadow:var(--shadow),var(--glow-gold);
    }
    .cta-panel::after{
      content:"";
      position:absolute;right:28px;top:24px;width:220px;height:220px;border-radius:50%;
      border:1px solid rgba(216,183,106,.16);
      box-shadow:inset 0 0 40px rgba(45,212,255,.08);
      pointer-events:none;
    }
    .cta-content{position:relative;z-index:1;max-width:780px}
    .cta-content h2{
      margin:14px 0 12px;font-size:clamp(30px,4vw,46px);line-height:1.16;letter-spacing:-.035em;
    }
    .cta-content p{margin:0 0 24px;color:var(--muted);font-size:17px}
    .form-panel{
      margin-top:26px;
      display:grid;grid-template-columns:1fr 1fr auto;gap:12px;
      padding:14px;border-radius:24px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(148,189,255,.14);
    }
    .field{display:grid;gap:6px}
    .field label{font-size:13px;color:var(--muted);font-weight:850}
    .field input{
      min-height:46px;border-radius:15px;border:1px solid rgba(148,189,255,.16);
      background:rgba(5,11,24,.46);color:var(--text);
      padding:0 14px;
      transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
    }
    .field input:focus{border-color:rgba(45,212,255,.58);box-shadow:0 0 0 4px rgba(45,212,255,.1)}
    .form-panel .btn{align-self:end;min-height:46px}
    .site-footer{
      margin-top:78px;
      padding:58px 0 26px;
      background:linear-gradient(180deg,rgba(7,17,31,.65),rgba(3,7,15,.96));
      border-top:1px solid rgba(148,189,255,.14);
      position:relative;
    }
    .site-footer::before{
      content:"";
      position:absolute;left:0;right:0;top:0;height:1px;
      background:linear-gradient(90deg,transparent,rgba(45,212,255,.58),rgba(216,183,106,.28),transparent);
    }
    .footer-grid{
      display:grid;grid-template-columns:1.15fr .7fr .8fr;gap:36px;
    }
    .footer-brand{display:flex;align-items:center;gap:12px;font-weight:950;font-size:18px;margin-bottom:14px}
    .footer-text{margin:0;color:var(--muted);max-width:560px;font-size:15px}
    .footer-col h3{margin:0 0 12px;font-size:16px}
    .footer-links{display:grid;gap:9px;color:var(--muted);font-size:14px}
    .footer-links a,.footer-links span{color:var(--muted);transition:color .2s var(--ease)}
    .footer-links a:hover{color:var(--cyan)}
    .footer-bottom{
      display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
      margin-top:36px;padding-top:20px;
      border-top:1px solid rgba(148,189,255,.12);
      color:var(--weak);font-size:13px;
    }
    @media (max-width:1024px){
      :root{--header-h:70px}
      .nav-cta{display:none}
      .hero-grid,.content-layout,.insight-grid,.faq-grid{grid-template-columns:1fr}
      .side-panel{position:relative;top:auto}
      .guide-card.is-featured,.guide-card{grid-template-columns:240px 1fr}
      .metric-strip{grid-template-columns:repeat(2,1fr)}
      .timeline{grid-template-columns:1fr}
      .timeline::before{left:27px;right:auto;top:30px;bottom:30px;width:1px;height:auto}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .site-header{height:auto;min-height:var(--header-h)}
      .brand-text span{display:none}
      .menu-toggle{display:flex}
      .nav-wrap{min-height:var(--header-h);height:auto;flex-wrap:wrap}
      .nav-links{
        display:none;
        order:5;width:100%;
        flex-direction:column;align-items:stretch;
        border-radius:24px;padding:10px;margin:0 0 14px;
        background:rgba(7,17,31,.96);
        box-shadow:var(--shadow);
      }
      .nav-links.open{display:flex}
      .nav-links a{justify-content:flex-start;border-radius:16px;padding:0 16px}
      .guide-hero{padding:34px 0 34px}
      .hero-grid{min-height:auto;gap:24px}
      .hero-copy h1{font-size:38px;letter-spacing:-.04em}
      .hero-copy p{font-size:16px}
      .section,.section-tight{padding:58px 0}
      .section-head{display:block}
      .guide-card,.guide-card.is-featured{grid-template-columns:1fr}
      .guide-media{min-height:210px}
      .toc-wrap{top:var(--header-h)}
      .large-photo{min-height:320px}
      .metric-strip{grid-template-columns:1fr}
      .faq-intro h2{font-size:30px}
      .cta-panel{padding:28px;border-radius:28px}
      .form-panel{grid-template-columns:1fr}
      .form-panel .btn{width:100%}
      .btn-row{align-items:stretch}
      .btn{width:100%}
      .footer-grid{grid-template-columns:1fr;gap:26px}
      .footer-bottom{display:grid}
    }
    @media (max-width:520px){
      body::after{font-size:120px;right:-45px;top:120px}
      .summary-card,.glass-card,.side-panel,.faq-intro{padding:20px}
      .hero-copy h1{font-size:34px}
      .section-title h2{font-size:30px}
      .guide-body h3{font-size:21px}
      .summary-list li{grid-template-columns:1fr}
      .summary-list b{width:34px;height:34px}
      .metric strong{font-size:28px}
      .cta-content h2{font-size:30px}
    }