/* roulang page: index */
:root{
      --ink:#10243e;
      --ink-soft:#36516e;
      --blue:#1769aa;
      --blue-deep:#0d4f83;
      --sky:#eaf5ff;
      --mint:#dff7f0;
      --gold:#e7b65b;
      --white:#ffffff;
      --paper:#f7fbff;
      --line:#dbe8f2;
      --muted:#71859a;
      --shadow:0 18px 55px rgba(19,72,112,.12);
      --shadow-soft:0 10px 30px rgba(19,72,112,.08);
      --radius:24px;
      --radius-sm:15px;
      --max:1200px;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.8;overflow-x:hidden}
    a{text-decoration:none;color:inherit;transition:.25s ease}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    :focus-visible{outline:3px solid rgba(23,105,170,.32);outline-offset:3px}
    .container{width:min(var(--max),calc(100% - 40px));margin:auto}
    .topline{height:5px;background:linear-gradient(90deg,var(--blue),#6ebde9,var(--gold))}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(247,251,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(219,232,242,.9)}
    .nav-shell{min-height:82px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:22px}
    .nav-side{display:flex;align-items:center;gap:18px}
    .nav-side.right{justify-content:flex-end}
    .nav-link{position:relative;color:var(--ink-soft);font-size:14px;font-weight:600;padding:8px 3px;white-space:nowrap}
    .nav-link:after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--blue);transition:.25s}
    .nav-link:hover,.nav-link.active{color:var(--blue)}
    .nav-link:hover:after,.nav-link.active:after{right:0}
    .brand{text-align:center;font-weight:900;letter-spacing:.08em;color:var(--ink);font-size:23px;white-space:nowrap}
    .brand span{display:block;color:var(--blue);font-size:10px;letter-spacing:.22em;font-weight:700;line-height:1.2}
    .nav-cta{background:var(--ink);color:#fff;border-radius:999px;padding:10px 17px;font-size:13px;font-weight:700;box-shadow:0 8px 20px rgba(16,36,62,.15)}
    .nav-cta:hover{background:var(--blue);transform:translateY(-2px)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:9px 12px;color:var(--ink)}
    .hero{position:relative;min-height:670px;display:flex;align-items:center;overflow:hidden;background:#123451 url('/assets/images/backpic/back-1.webp') center/cover no-repeat}
    .hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,32,54,.9) 0%,rgba(8,32,54,.7) 42%,rgba(8,32,54,.22) 100%)}
    .hero-inner{position:relative;z-index:1;padding:95px 0 110px;color:#fff}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#bce7ff;font-size:13px;font-weight:800;letter-spacing:.16em;margin-bottom:20px}
    .eyebrow:before{content:"";width:28px;height:2px;background:var(--gold)}
    h1{font-size:clamp(40px,6vw,76px);line-height:1.13;letter-spacing:-.045em;max-width:720px}
    .hero-copy{font-size:18px;color:rgba(255,255,255,.84);max-width:650px;margin:25px 0 31px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:13px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:999px;padding:13px 21px;font-weight:800;font-size:14px;transition:.25s;white-space:nowrap}
    .btn-primary{background:#fff;color:var(--ink);box-shadow:0 10px 28px rgba(0,0,0,.16)}
    .btn-primary:hover{background:var(--gold);transform:translateY(-3px)}
    .btn-outline{border:1px solid rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.08)}
    .btn-outline:hover{background:#fff;color:var(--ink)}
    .hero-stats{display:flex;flex-wrap:wrap;gap:30px;margin-top:48px}
    .hero-stat{border-left:1px solid rgba(255,255,255,.35);padding-left:17px}
    .hero-stat strong{display:block;font-size:27px;line-height:1.1}
    .hero-stat span{display:block;color:rgba(255,255,255,.68);font-size:12px;margin-top:4px}
    .section{padding:100px 0}
    .section.compact{padding:78px 0}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:38px}
    .section-kicker{color:var(--blue);font-size:12px;font-weight:900;letter-spacing:.16em;margin-bottom:8px}
    h2{font-size:clamp(28px,4vw,47px);line-height:1.2;letter-spacing:-.035em}
    .section-intro{max-width:590px;color:var(--muted);font-size:15px}
    .progress-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:stretch}
    .panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-soft)}
    .progress-panel{padding:34px}
    .progress-row{display:flex;justify-content:space-between;gap:15px;margin:24px 0 9px;font-size:14px;font-weight:700}
    .progress-bar{height:10px;background:#edf3f7;border-radius:20px;overflow:hidden}
    .progress-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--blue),#65c5d9);border-radius:20px}
    .progress-note{color:var(--muted);font-size:13px;margin-top:25px}
    .metric-panel{padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line)}
    .metric{background:#fff;padding:25px}
    .metric strong{font-size:34px;color:var(--blue);display:block;line-height:1.2}
    .metric small{color:var(--muted);font-size:13px}
    .matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:17px}
    .matrix-card{padding:27px 23px;min-height:205px;transition:.25s;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);box-shadow:var(--shadow-soft)}
    .matrix-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
    .icon{width:44px;height:44px;display:grid;place-items:center;border-radius:14px;background:var(--sky);color:var(--blue);font-weight:900;margin-bottom:18px}
    .matrix-card:nth-child(2) .icon{background:var(--mint)}
    .matrix-card:nth-child(3) .icon{background:#fff4d9;color:#9a6d16}
    .matrix-card h3{font-size:18px;margin-bottom:8px}
    .matrix-card p{font-size:13px;color:var(--muted)}
    .tier-section{background:var(--ink);color:#fff}
    .tier-section .section-intro{color:rgba(255,255,255,.65)}
    .tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .tier{border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);border-radius:var(--radius);padding:30px;position:relative}
    .tier.featured{background:#fff;color:var(--ink);transform:translateY(-12px);box-shadow:0 20px 55px rgba(0,0,0,.2)}
    .tier-label{font-size:12px;color:var(--gold);font-weight:900;letter-spacing:.12em}
    .tier.featured .tier-label{color:var(--blue)}
    .tier h3{font-size:24px;margin:11px 0 8px}
    .tier p{font-size:14px;color:rgba(255,255,255,.68);min-height:72px}
    .tier.featured p{color:var(--muted)}
    .tier ul{list-style:none;margin-top:22px;border-top:1px solid rgba(255,255,255,.15);padding-top:15px}
    .tier.featured ul{border-color:var(--line)}
    .tier li{font-size:13px;padding:7px 0;color:rgba(255,255,255,.8)}
    .tier.featured li{color:var(--ink-soft)}
    .tier li:before{content:"✓";color:var(--gold);font-weight:bold;margin-right:9px}
    .compare{display:grid;grid-template-columns:1fr 1fr;gap:26px}
    .compare-card{padding:34px;border-radius:var(--radius);border:1px solid var(--line);background:#fff}
    .compare-card.highlight{background:var(--sky);border-color:#b9def2}
    .compare-card h3{font-size:21px;margin-bottom:18px}
    .compare-list{list-style:none}
    .compare-list li{display:flex;gap:13px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink-soft)}
    .compare-list li:last-child{border-bottom:0}
    .check{width:23px;height:23px;flex:0 0 23px;border-radius:50%;background:var(--mint);color:#19806b;text-align:center;font-size:12px;font-weight:bold}
    .support-band{display:grid;grid-template-columns:.8fr 1.2fr;gap:36px;align-items:center}
    .support-image{min-height:370px;border-radius:var(--radius);background:url('/assets/images/coverpic/cover-4.webp') center/cover;box-shadow:var(--shadow)}
    .support-content{padding:12px}
    .quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:25px}
    .quote{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:var(--shadow-soft)}
    .quote p{font-size:14px;color:var(--ink-soft);margin-bottom:17px}
    .person{display:flex;align-items:center;gap:10px;font-size:13px;font-weight:800}
    .avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--blue);color:#fff;font-size:12px}
    .calendar{display:grid;grid-template-columns:1fr 1.3fr;gap:24px}
    .calendar-cover{border-radius:var(--radius);min-height:320px;background:url('/assets/images/coverpic/cover-7.webp') center/cover}
    .date-list{display:grid;gap:10px}
    .date-item{display:grid;grid-template-columns:70px 1fr auto;gap:17px;align-items:center;padding:17px 18px;background:#fff;border:1px solid var(--line);border-radius:15px}
    .date{font-size:13px;color:var(--blue);font-weight:900}
    .date-item strong{font-size:15px}
    .date-item span{font-size:12px;color:var(--muted)}
    .status{font-size:11px;color:#168069;background:var(--mint);padding:4px 9px;border-radius:99px;white-space:nowrap}
    .status.next{color:#986a15;background:#fff2cc}
    .updates{display:grid;grid-template-columns:1.4fr .6fr;gap:24px}
    .update-table{overflow:hidden}
    .update-row{display:grid;grid-template-columns:90px 1fr 100px;align-items:center;gap:18px;padding:20px 23px;border-bottom:1px solid var(--line);background:#fff}
    .update-row:last-child{border:0}
    .update-row time{color:var(--muted);font-size:12px}
    .update-row strong{font-size:14px}
    .update-row span{font-size:12px;color:var(--blue);text-align:right}
    .score{padding:28px;background:var(--ink);color:#fff;border-radius:var(--radius)}
    .score strong{display:block;font-size:55px;line-height:1.1;color:#bce7ff}
    .score p{font-size:13px;color:rgba(255,255,255,.65);margin:14px 0 24px}
    .news-layout{display:grid;grid-template-columns:1fr 330px;gap:28px}
    .news-list{display:grid;gap:13px}
    .news-item{display:grid;grid-template-columns:105px 1fr auto;gap:20px;align-items:center;padding:22px;background:#fff;border:1px solid var(--line);border-radius:17px}
    .news-date{font-size:12px;color:var(--blue);font-weight:800}
    .news-item h3{font-size:17px;margin-bottom:4px}
    .news-item p{font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .read-more{font-size:12px;font-weight:800;color:var(--blue);white-space:nowrap}
    .news-side{border-radius:var(--radius);padding:28px;background:url('/assets/images/coverpic/cover-9.webp') center/cover;position:relative;overflow:hidden;color:#fff;min-height:370px;display:flex;flex-direction:column;justify-content:end}
    .news-side:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(8,32,54,.88),rgba(8,32,54,.08))}
    .news-side>*{position:relative}
    .news-side p{font-size:13px;color:rgba(255,255,255,.75);margin:9px 0 16px}
    .brand-story{display:grid;grid-template-columns:.75fr 1.25fr;gap:38px;align-items:center}
    .story-image{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
    .story-image img{width:100%;height:410px;object-fit:cover}
    .story-text p{color:var(--ink-soft);font-size:15px;margin:17px 0}
    .story-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:25px}
    .story-point{padding:16px;border-left:3px solid var(--gold);background:#fff;border-radius:0 12px 12px 0;font-size:13px;color:var(--ink-soft)}
    .safety{background:var(--sky)}
    .safety-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
    .safety-card{padding:25px;background:#fff;border-radius:18px;border:1px solid #cfe6f4}
    .safety-card strong{display:block;font-size:16px;margin-bottom:8px}
    .safety-card p{font-size:13px;color:var(--muted)}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 22px}
    summary{cursor:pointer;font-weight:800;font-size:15px;list-style:none;display:flex;justify-content:space-between;gap:15px}
    summary:after{content:"＋";color:var(--blue);font-size:20px;line-height:1}
    details[open] summary:after{content:"－"}
    details p{color:var(--muted);font-size:13px;margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
    .form-section{background:#fff}
    .form-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:45px;align-items:start}
    .form-intro p{color:var(--muted);font-size:15px;margin:18px 0}
    .contact-points{display:grid;gap:12px;margin-top:25px}
    .contact-point{display:flex;gap:12px;align-items:center;color:var(--ink-soft);font-size:14px}
    .contact-point b{width:30px;height:30px;border-radius:10px;background:var(--sky);color:var(--blue);display:grid;place-items:center}
    .lead-form{padding:30px;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-soft);display:grid;gap:14px}
    .field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    label{font-size:12px;color:var(--ink-soft);font-weight:800;display:grid;gap:7px}
    input,textarea,select{width:100%;border:1px solid var(--line);background:#fbfdff;border-radius:12px;padding:12px 14px;color:var(--ink);transition:.2s}
    textarea{min-height:115px;resize:vertical}
    input:hover,textarea:hover,select:hover,input:focus,textarea:focus,select:focus{border-color:#88c4e6;background:#fff;outline:none;box-shadow:0 0 0 4px rgba(23,105,170,.08)}
    .form-tip{font-size:12px;color:var(--muted)}
    .cta{padding:76px 0;background:linear-gradient(100deg,#0f527f,#1769aa);color:#fff}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta h2{max-width:650px}
    .cta p{color:rgba(255,255,255,.72);font-size:14px;margin-top:10px}
    .site-footer{background:#0b2036;color:#fff;padding:54px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:30px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12)}
    .footer-brand{font-size:24px;font-weight:900}
    .footer-brand p{font-size:13px;line-height:1.8;color:rgba(255,255,255,.55);font-weight:400;margin-top:13px;max-width:270px}
    .footer-col h3{font-size:14px;margin-bottom:14px;color:#bce7ff}
    .footer-col a{display:block;color:rgba(255,255,255,.62);font-size:13px;margin:8px 0}
    .footer-col a:hover{color:#fff}
    .copyright{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:22px;color:rgba(255,255,255,.48);font-size:12px}
    .copyright a{text-decoration:underline}
    .mobile-nav{display:none}
    @media(max-width:1024px){
      .nav-shell{grid-template-columns:auto 1fr auto}.nav-side.left,.nav-side.right{display:none}.brand{text-align:left}.menu-btn{display:block}
      .matrix{grid-template-columns:repeat(2,1fr)}.safety-grid{grid-template-columns:repeat(2,1fr)}
      .progress-wrap,.support-band,.calendar,.updates,.form-grid{grid-template-columns:1fr}
      .tier-grid{gap:12px}.tier.featured{transform:none}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 28px))}
      .section{padding:68px 0}.section-head{display:block;margin-bottom:27px}.section-intro{margin-top:13px}
      .hero{min-height:610px}.hero-inner{padding:75px 0 80px}.hero-copy{font-size:16px}
      .hero-stats{gap:18px;margin-top:35px}.hero-stat strong{font-size:22px}
      .matrix,.tier-grid,.quote-grid,.compare,.faq-grid{grid-template-columns:1fr}
      .news-layout{grid-template-columns:1fr}.news-side{min-height:280px}
      .brand-story{grid-template-columns:1fr}.story-image img{height:290px}
      .cta-inner{display:block}.cta .btn{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
      .mobile-nav{display:none;background:#fff;border-top:1px solid var(--line);padding:12px 14px 18px}.mobile-nav.open{display:block}
      .mobile-nav a{display:block;padding:10px;color:var(--ink-soft);border-bottom:1px solid #eef4f8;font-size:14px}
    }
    @media(max-width:520px){
      h1{font-size:42px}.hero-actions .btn{width:100%}.field-row{grid-template-columns:1fr}
      .metric-panel{grid-template-columns:1fr}.date-item{grid-template-columns:58px 1fr}.date-item .status{grid-column:2;justify-self:start}
      .news-item{grid-template-columns:1fr;gap:6px}.read-more{margin-top:6px}
      .safety-grid{grid-template-columns:1fr}.story-points{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:8px}
    }

/* roulang page: category3 */
:root{
      --ink:#10243e;
      --ink-soft:#36516e;
      --blue:#1769aa;
      --blue-deep:#0d4f83;
      --sky:#eaf5ff;
      --mint:#dff7f0;
      --gold:#e7b65b;
      --white:#fff;
      --paper:#f7fbff;
      --line:#dbe8f2;
      --muted:#71859a;
      --shadow:0 18px 55px rgba(19,72,112,.12);
      --shadow-soft:0 10px 30px rgba(19,72,112,.08);
      --radius:24px;
      --radius-sm:15px;
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.8;overflow-x:hidden}
    a{text-decoration:none;color:inherit;transition:.25s ease}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--max),calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:40;background:rgba(247,251,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid rgba(219,232,242,.9)}
    .nav-shell{min-height:82px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:22px}
    .nav-side{display:flex;align-items:center;gap:17px}
    .nav-side.right{justify-content:flex-end}
    .nav-link{position:relative;color:var(--ink-soft);font-size:14px;font-weight:600;padding:8px 3px;white-space:nowrap}
    .nav-link:after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--blue);transition:.25s}
    .nav-link:hover,.nav-link.active{color:var(--blue)}
    .nav-link:hover:after,.nav-link.active:after{right:0}
    .brand{text-align:center;font-weight:900;letter-spacing:.08em;color:var(--ink);font-size:23px;white-space:nowrap}
    .brand span{display:block;color:var(--blue);font-size:10px;letter-spacing:.22em;font-weight:700;line-height:1.2}
    .nav-cta{background:var(--ink);color:#fff;border-radius:999px;padding:10px 17px;font-size:13px;font-weight:700;box-shadow:0 8px 20px rgba(16,36,62,.15)}
    .nav-cta:hover{background:var(--blue);transform:translateY(-2px)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:9px 12px;color:var(--ink)}
    .mobile-nav{display:none}
    .page-banner{position:relative;min-height:410px;display:flex;align-items:center;background:#123451 url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;overflow:hidden}
    .page-banner:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,32,54,.91),rgba(8,32,54,.68) 50%,rgba(8,32,54,.25))}
    .banner-inner{position:relative;z-index:1;color:#fff;padding:75px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#bce7ff;font-size:13px;font-weight:800;letter-spacing:.16em;margin-bottom:17px}
    .eyebrow:before{content:"";width:28px;height:2px;background:var(--gold)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,5vw,66px);line-height:1.15;letter-spacing:-.04em;margin-bottom:20px}
    h2{font-size:clamp(27px,3.5vw,42px);line-height:1.3;letter-spacing:-.025em;margin-bottom:15px}
    h3{line-height:1.4}
    .banner-copy{max-width:680px;color:rgba(255,255,255,.84);font-size:17px;margin-bottom:28px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:999px;padding:13px 21px;font-weight:800;font-size:14px;transition:.25s;white-space:nowrap}
    .btn-primary{background:#fff;color:var(--ink);box-shadow:0 10px 28px rgba(0,0,0,.16)}
    .btn-primary:hover{background:var(--gold);transform:translateY(-3px)}
    .btn-blue{background:var(--blue);color:#fff;box-shadow:0 10px 25px rgba(23,105,170,.2)}
    .btn-blue:hover{background:var(--blue-deep);transform:translateY(-3px)}
    .btn-outline{border:1px solid rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.08)}
    .btn-outline:hover{background:#fff;color:var(--ink)}
    .section{padding:92px 0}
    .section.compact{padding:68px 0}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:36px}
    .section-kicker{color:var(--blue);font-size:12px;font-weight:900;letter-spacing:.16em;margin-bottom:8px}
    .section-intro{max-width:590px;color:var(--muted);font-size:15px}
    .coupon-layout{display:grid;grid-template-columns:1.06fr .94fr;gap:38px;align-items:center}
    .coupon-card{position:relative;background:#fff;border:1px solid #cfe2ef;border-radius:30px;padding:37px 40px;box-shadow:var(--shadow);overflow:hidden}
    .coupon-card:after{content:"";position:absolute;right:-52px;bottom:-63px;width:190px;height:190px;border:30px solid var(--sky);border-radius:50%}
    .coupon-label{display:inline-flex;background:var(--mint);color:#19725f;border-radius:999px;padding:5px 12px;font-size:12px;font-weight:800}
    .coupon-card h2{font-size:34px;margin:19px 0 10px}
    .coupon-card p{position:relative;z-index:1;color:var(--ink-soft);font-size:15px;max-width:530px}
    .coupon-value{display:flex;align-items:baseline;gap:7px;margin:23px 0;color:var(--blue)}
    .coupon-value strong{font-size:62px;line-height:1;font-weight:900}
    .coupon-value span{font-size:16px;font-weight:800}
    .coupon-note{font-size:12px!important;color:var(--muted)!important;margin:15px 0 0}
    .coupon-side{padding:10px 0}
    .coupon-side img{width:100%;height:280px;object-fit:cover;border-radius:22px;box-shadow:var(--shadow-soft)}
    .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .metric{background:#fff;border:1px solid var(--line);border-radius:18px;padding:23px 20px;box-shadow:var(--shadow-soft)}
    .metric strong{display:block;color:var(--blue);font-size:30px;line-height:1.1;margin-bottom:7px}
    .metric span{font-size:13px;color:var(--muted)}
    .blue-band{background:var(--sky)}
    .service-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:50px;align-items:start}
    .service-image{position:sticky;top:115px}
    .service-image img{height:440px;width:100%;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow)}
    .service-list{display:grid;gap:14px}
    .service-item{display:grid;grid-template-columns:52px 1fr;gap:17px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-soft);transition:.25s}
    .service-item:hover{transform:translateX(5px);box-shadow:var(--shadow)}
    .number{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:var(--sky);color:var(--blue);font-weight:900}
    .service-item h3{font-size:19px;margin:0 0 6px}
    .service-item p{font-size:14px;color:var(--muted);margin:0}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:26px}
    .compare-card{padding:33px;border-radius:var(--radius);border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-soft)}
    .compare-card.highlight{background:var(--ink);color:#fff;border-color:var(--ink)}
    .compare-card h3{font-size:22px;margin-bottom:14px}
    .compare-card p{color:var(--muted);font-size:14px}
    .compare-card.highlight p{color:rgba(255,255,255,.7)}
    .check-list{list-style:none;padding:0;margin:20px 0 0}
    .check-list li{position:relative;padding:11px 0 11px 28px;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink-soft)}
    .highlight .check-list li{border-color:rgba(255,255,255,.15);color:rgba(255,255,255,.85)}
    .check-list li:before{content:"✓";position:absolute;left:0;color:var(--blue);font-weight:900}
    .highlight .check-list li:before{color:var(--gold)}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
    .step{position:relative;padding:28px 22px 10px;border-right:1px solid var(--line)}
    .step:last-child{border-right:0}
    .step:before{content:"";position:absolute;top:-6px;left:22px;width:11px;height:11px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 6px var(--paper)}
    .step b{display:block;color:var(--blue);font-size:13px;margin-bottom:12px}
    .step h3{font-size:17px;margin-bottom:7px}
    .step p{color:var(--muted);font-size:13px;margin:0}
    .gallery-grid{display:grid;grid-template-columns:1.15fr .85fr .85fr;grid-template-rows:210px 210px;gap:15px}
    .gallery-grid figure{position:relative;margin:0;overflow:hidden;border-radius:20px;background:#d9eaf5}
    .gallery-grid figure:first-child{grid-row:span 2}
    .gallery-grid img{width:100%;height:100%;object-fit:cover;transition:.5s}
    .gallery-grid figure:hover img{transform:scale(1.05)}
    .gallery-grid figcaption{position:absolute;left:15px;right:15px;bottom:14px;color:#fff;font-weight:800;text-shadow:0 2px 12px #000;background:linear-gradient(transparent,rgba(0,0,0,.52));padding-top:28px}
    .audience-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
    .audience-card{padding:25px;background:#fff;border-radius:18px;border:1px solid var(--line);transition:.25s}
    .audience-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .audience-card span{font-size:12px;color:var(--blue);font-weight:900;letter-spacing:.1em}
    .audience-card h3{font-size:18px;margin:9px 0}
    .audience-card p{font-size:13px;color:var(--muted);margin:0}
    .faq-wrap{max-width:900px;margin:auto}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:15px;margin-bottom:11px;overflow:hidden}
    .faq-item summary{cursor:pointer;padding:19px 23px;font-weight:800;list-style:none;position:relative;padding-right:50px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";position:absolute;right:22px;color:var(--blue);font-size:20px}
    .faq-item[open] summary:after{content:"－"}
    .faq-answer{padding:0 23px 20px;color:var(--muted);font-size:14px}
    .cta-section{background:var(--blue-deep);color:#fff}
    .cta-layout{display:grid;grid-template-columns:1fr .9fr;gap:50px;align-items:center}
    .cta-section .section-intro{color:rgba(255,255,255,.72)}
    .contact-form{background:#fff;border-radius:22px;padding:27px;color:var(--ink);box-shadow:var(--shadow)}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;gap:6px}
    .field.full{grid-column:1/-1}
    .field label{font-size:12px;font-weight:800;color:var(--ink-soft)}
    .field input,.field textarea{width:100%;border:1px solid var(--line);border-radius:11px;padding:11px 13px;outline:0;background:#fbfdff;color:var(--ink)}
    .field textarea{min-height:95px;resize:vertical}
    .field input:focus,.field textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(23,105,170,.12)}
    .form-tip{font-size:12px;color:var(--muted);margin:13px 0 0}
    .site-footer{background:#0b1d31;color:#fff;padding:62px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px;border-bottom:1px solid rgba(255,255,255,.13)}
    .footer-brand{font-size:23px;font-weight:900;letter-spacing:.08em}
    .footer-brand p{font-size:13px;line-height:1.8;font-weight:400;color:rgba(255,255,255,.62);max-width:300px;margin-top:13px}
    .footer-col{display:grid;align-content:start;gap:9px}
    .footer-col h3{font-size:14px;margin:0 0 8px;color:#bce7ff}
    .footer-col a{font-size:13px;color:rgba(255,255,255,.66)}
    .footer-col a:hover{color:#fff;transform:translateX(3px)}
    .copyright{display:flex;flex-wrap:wrap;justify-content:space-between;gap:13px;padding-top:22px;color:rgba(255,255,255,.5);font-size:12px}
    .copyright a:hover{color:#fff}
    .toast{position:fixed;right:22px;bottom:22px;background:var(--ink);color:#fff;border-radius:12px;padding:13px 17px;box-shadow:var(--shadow);opacity:0;transform:translateY(15px);pointer-events:none;transition:.3s;z-index:60;font-size:13px}
    .toast.show{opacity:1;transform:none}
    @media(max-width:1100px){
      .nav-side{gap:10px}
      .nav-link{font-size:13px}
      .nav-cta{padding:9px 13px}
    }
    @media(max-width:900px){
      .nav-shell{grid-template-columns:1fr auto}
      .nav-side{display:none}
      .brand{text-align:left}
      .menu-btn{display:block;justify-self:end}
      .mobile-nav{display:none;padding:10px 20px 18px;border-top:1px solid var(--line);background:var(--paper)}
      .mobile-nav.open{display:grid;gap:2px}
      .mobile-nav a{padding:10px 0;color:var(--ink-soft);font-size:14px;border-bottom:1px solid var(--line)}
      .coupon-layout,.service-layout,.cta-layout{grid-template-columns:1fr}
      .service-image{position:static}
      .service-image img{height:330px}
      .metric-grid{grid-template-columns:repeat(2,1fr)}
      .timeline{grid-template-columns:repeat(2,1fr);border-top:0}
      .step{border-top:1px solid var(--line);border-right:0}
      .step:nth-child(odd){border-right:1px solid var(--line)}
    }
    @media(max-width:640px){
      .container{width:min(var(--max),calc(100% - 28px))}
      .section{padding:65px 0}
      .banner-inner{padding:60px 0}
      .banner-copy{font-size:15px}
      .section-head{display:block}
      .section-intro{margin-top:12px}
      .coupon-card{padding:27px 23px}
      .coupon-card h2{font-size:27px}
      .coupon-value strong{font-size:49px}
      .metric-grid,.split,.audience-grid,.form-grid{grid-template-columns:1fr}
      .field.full{grid-column:auto}
      .gallery-grid{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:180px 180px}
      .gallery-grid figure:first-child{grid-column:span 2;grid-row:auto}
      .gallery-grid figure{min-height:170px}
      .timeline{grid-template-columns:1fr}
      .step,.step:nth-child(odd){border-right:0}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px}
      .footer-brand{grid-column:1/-1}
      .copyright{display:grid}
    }

/* roulang page: category1 */
:root{
 --ink:#10243e;--ink-soft:#36516e;--blue:#1769aa;--blue-deep:#0d4f83;
 --sky:#eaf5ff;--mint:#dff7f0;--gold:#e7b65b;--white:#fff;
 --paper:#f7fbff;--line:#dbe8f2;--muted:#71859a;
 --shadow:0 18px 55px rgba(19,72,112,.12);--shadow-soft:0 10px 30px rgba(19,72,112,.08);
 --radius:24px;--radius-sm:15px;--max:1200px
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.8;overflow-x:hidden}
a{text-decoration:none;color:inherit;transition:.25s ease}
img{display:block;max-width:100%;height:auto}
button,input,textarea{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--max),calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:30;background:rgba(247,251,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid rgba(219,232,242,.9)}
.nav-shell{min-height:82px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:22px}
.nav-side{display:flex;align-items:center;gap:18px}
.nav-side.right{justify-content:flex-end}
.nav-link{position:relative;color:var(--ink-soft);font-size:14px;font-weight:600;padding:8px 3px;white-space:nowrap}
.nav-link:after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--blue);transition:.25s}
.nav-link:hover,.nav-link.active{color:var(--blue)}
.nav-link:hover:after,.nav-link.active:after{right:0}
.brand{text-align:center;font-weight:900;letter-spacing:.08em;color:var(--ink);font-size:23px;white-space:nowrap}
.brand span{display:block;color:var(--blue);font-size:10px;letter-spacing:.22em;font-weight:700;line-height:1.2}
.nav-cta{background:var(--ink);color:#fff;border-radius:999px;padding:10px 17px;font-size:13px;font-weight:700;box-shadow:0 8px 20px rgba(16,36,62,.15)}
.nav-cta:hover{background:var(--blue);transform:translateY(-2px)}
.menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:9px 12px;color:var(--ink)}
.mobile-nav{display:none}
.hero{position:relative;min-height:560px;display:flex;align-items:center;overflow:hidden;background:#123451 url('/assets/images/backpic/back-2.jpg') center/cover no-repeat}
.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,32,54,.92),rgba(8,32,54,.66) 49%,rgba(8,32,54,.2))}
.hero-inner{position:relative;z-index:1;padding:90px 0;color:#fff}
.eyebrow,.section-kicker{font-size:12px;font-weight:900;letter-spacing:.16em}
.eyebrow{display:inline-flex;gap:8px;align-items:center;color:#bce7ff;margin-bottom:17px}
.eyebrow:before{content:"";width:28px;height:2px;background:var(--gold)}
h1{font-size:clamp(38px,5vw,68px);line-height:1.18;letter-spacing:-.04em;max-width:720px}
h2{font-size:clamp(28px,3.2vw,43px);line-height:1.3;letter-spacing:-.035em}
h3{line-height:1.4}
.hero-copy{font-size:18px;color:rgba(255,255,255,.84);max-width:650px;margin:24px 0 30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:13px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:999px;padding:13px 21px;font-weight:800;font-size:14px;transition:.25s;white-space:nowrap}
.btn-primary{background:#fff;color:var(--ink);box-shadow:0 10px 28px rgba(0,0,0,.16)}
.btn-primary:hover{background:var(--gold);transform:translateY(-3px)}
.btn-outline{border:1px solid rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.08)}
.btn-outline:hover{background:#fff;color:var(--ink)}
.section{padding:96px 0}
.section.compact{padding:72px 0}
.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:36px}
.section-kicker{color:var(--blue);margin-bottom:8px}
.section-intro{max-width:590px;color:var(--muted);font-size:15px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);box-shadow:var(--shadow-soft);transition:.25s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.metric-card{padding:25px 22px}
.metric-card strong{font-size:34px;color:var(--blue);display:block;line-height:1.2}
.metric-card span{color:var(--muted);font-size:13px}
.metric-card p{font-size:13px;color:var(--ink-soft);margin-top:12px}
.icon{width:43px;height:43px;border-radius:13px;background:var(--sky);color:var(--blue);display:grid;place-items:center;font-size:20px;margin-bottom:20px}
.service-card{padding:27px 23px;min-height:235px}
.service-card h3{font-size:19px;margin-bottom:9px}
.service-card p{color:var(--muted);font-size:13px}
.service-card ul{list-style:none;margin-top:17px;color:var(--ink-soft);font-size:13px}
.service-card li{padding:5px 0}
.service-card li:before{content:"✓";color:var(--blue);font-weight:900;margin-right:8px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:58px;align-items:center}
.image-panel{position:relative}
.image-panel img{width:100%;height:420px;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow)}
.image-note{position:absolute;right:-20px;bottom:25px;background:#fff;padding:17px 20px;border-radius:16px;box-shadow:var(--shadow);font-size:13px;color:var(--ink-soft)}
.text-block p{color:var(--muted);font-size:15px;margin-top:18px}
.check-list{list-style:none;margin-top:25px}
.check-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);color:var(--ink-soft);font-size:14px}
.check-list b{color:var(--blue)}
.dark{background:var(--ink);color:#fff}
.dark .section-intro{color:rgba(255,255,255,.66)}
.dark .metric-card{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.14);box-shadow:none}
.dark .metric-card span,.dark .metric-card p{color:rgba(255,255,255,.68)}
.schedule{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.schedule-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.schedule-top span{font-size:13px;color:var(--muted)}
.time-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.time{padding:14px 8px;text-align:center;border:1px solid var(--line);border-radius:12px;color:var(--ink-soft);font-size:13px;transition:.2s}
.time:hover,.time.selected{border-color:var(--blue);background:var(--sky);color:var(--blue);font-weight:800}
.data-line{display:flex;align-items:center;gap:16px;padding:17px 0;border-bottom:1px solid var(--line)}
.data-line:last-child{border-bottom:0}
.data-line strong{width:100px;font-size:14px}
.bar{height:9px;flex:1;background:#e9f1f6;border-radius:10px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--blue);border-radius:inherit}
.data-line em{font-style:normal;color:var(--blue);font-weight:800;font-size:13px;width:42px;text-align:right}
.faq-list{display:grid;gap:12px;max-width:880px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:15px;overflow:hidden}
.faq-q{width:100%;display:flex;justify-content:space-between;text-align:left;background:#fff;color:var(--ink);padding:19px 21px;font-weight:800}
.faq-q span{color:var(--blue);font-size:20px}
.faq-a{display:none;padding:0 21px 20px;color:var(--muted);font-size:14px}
.faq-item.open .faq-a{display:block}
.cta{background:var(--sky);border:1px solid #c7e4f3;border-radius:var(--radius);padding:45px;display:flex;justify-content:space-between;gap:30px;align-items:center}
.cta p{color:var(--muted);max-width:620px;margin-top:10px}
.btn-blue{background:var(--blue);color:#fff;box-shadow:0 10px 25px rgba(23,105,170,.22)}
.btn-blue:hover{background:var(--blue-deep);transform:translateY(-3px)}
.form-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-soft)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
.field{display:grid;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:800}
.field input,.field textarea{width:100%;border:1px solid var(--line);border-radius:11px;padding:12px 14px;color:var(--ink);outline:0;background:#fbfdff}
.field input:focus,.field textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(23,105,170,.12)}
.field textarea{min-height:100px;resize:vertical}
.form-message{font-size:13px;color:var(--blue);margin-top:12px}
.site-footer{background:#0c1d31;color:#dceaf5;padding:62px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
.footer-brand{font-size:22px;font-weight:900;letter-spacing:.08em}
.footer-brand p{font-size:13px;font-weight:400;line-height:1.8;color:#91a9bd;max-width:300px;margin-top:13px}
.footer-col{display:grid;align-content:start;gap:9px}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:8px}
.footer-col a{font-size:13px;color:#91a9bd}
.footer-col a:hover{color:#fff}
.copyright{border-top:1px solid rgba(255,255,255,.13);margin-top:43px;padding-top:20px;display:flex;flex-wrap:wrap;gap:15px;justify-content:space-between;color:#8198aa;font-size:12px}
.copyright a:hover{color:#fff}
@media(max-width:1100px){.nav-side{gap:11px}.nav-link{font-size:12px}.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:800px){
 .container{width:min(var(--max),calc(100% - 30px))}
 .nav-shell{grid-template-columns:1fr auto;min-height:72px}.nav-side{display:none}.brand{text-align:left;font-size:21px}.menu-btn{display:block;justify-self:end}
 .mobile-nav{padding:0 15px 15px;background:var(--paper);border-top:1px solid var(--line)}
 .mobile-nav a{display:block;padding:11px 5px;color:var(--ink-soft);border-bottom:1px solid var(--line);font-size:14px}
 .mobile-nav.open{display:block}.hero{min-height:570px}.hero-inner{padding:75px 0}
 .section{padding:70px 0}.section-head{display:block}.section-intro{margin-top:14px}.grid-3{grid-template-columns:1fr}.split{grid-template-columns:1fr;gap:30px}.image-panel img{height:330px}.image-note{right:12px}
 .cta{display:block;padding:30px}.cta .btn{margin-top:23px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-bottom:9px}
}
@media(max-width:520px){
 h1{font-size:39px}.hero-copy{font-size:16px}.grid-4{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.schedule{padding:20px}.time-grid{grid-template-columns:repeat(2,1fr)}
 .footer-grid{grid-template-columns:1fr}.section-head{margin-bottom:27px}.data-line strong{width:78px;font-size:13px}
}

/* roulang page: category2 */
:root{
      --ink:#10243e;
      --ink-soft:#36516e;
      --blue:#1769aa;
      --blue-deep:#0d4f83;
      --sky:#eaf5ff;
      --mint:#dff7f0;
      --gold:#e7b65b;
      --white:#fff;
      --paper:#f7fbff;
      --line:#dbe8f2;
      --muted:#71859a;
      --shadow:0 18px 55px rgba(19,72,112,.12);
      --shadow-soft:0 10px 30px rgba(19,72,112,.08);
      --radius:24px;
      --radius-sm:15px;
      --max:1200px;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.8;overflow-x:hidden}
    a{text-decoration:none;color:inherit;transition:.25s ease}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--max),calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(247,251,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid rgba(219,232,242,.9)}
    .nav-shell{min-height:82px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:22px}
    .nav-side{display:flex;align-items:center;gap:18px}
    .nav-side.right{justify-content:flex-end}
    .nav-link{position:relative;color:var(--ink-soft);font-size:14px;font-weight:600;padding:8px 3px;white-space:nowrap}
    .nav-link:after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--blue);transition:.25s}
    .nav-link:hover,.nav-link.active{color:var(--blue)}
    .nav-link:hover:after,.nav-link.active:after{right:0}
    .brand{text-align:center;font-weight:900;letter-spacing:.08em;color:var(--ink);font-size:23px;white-space:nowrap}
    .brand span{display:block;color:var(--blue);font-size:10px;letter-spacing:.22em;font-weight:700;line-height:1.2}
    .nav-cta{background:var(--ink);color:#fff;border-radius:999px;padding:10px 17px;font-size:13px;font-weight:700;box-shadow:0 8px 20px rgba(16,36,62,.15)}
    .nav-cta:hover{background:var(--blue);transform:translateY(-2px)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:9px 12px;color:var(--ink)}
    .mobile-nav{display:none;padding:8px 20px 20px;border-top:1px solid var(--line)}
    .mobile-nav a{display:block;padding:10px 0;color:var(--ink-soft);font-weight:700}
    .mobile-nav.open{display:block}
    .hero{position:relative;min-height:570px;display:flex;align-items:center;overflow:hidden;background:#123451 url('/assets/images/backpic/back-2.jpg') center/cover no-repeat}
    .hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,32,54,.92),rgba(8,32,54,.7) 48%,rgba(8,32,54,.2))}
    .hero-inner{position:relative;z-index:1;padding:88px 0;color:#fff}
    .eyebrow,.section-kicker{font-size:12px;font-weight:900;letter-spacing:.16em}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#bce7ff;margin-bottom:18px}
    .eyebrow:before{content:"";width:28px;height:2px;background:var(--gold)}
    h1{font-size:clamp(40px,6vw,72px);line-height:1.15;letter-spacing:-.04em;max-width:730px}
    h2{font-size:clamp(28px,4vw,44px);line-height:1.25;letter-spacing:-.03em}
    h3{line-height:1.35}
    .hero-copy{font-size:18px;color:rgba(255,255,255,.84);max-width:650px;margin:24px 0 30px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:13px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:999px;padding:13px 21px;font-weight:800;font-size:14px;transition:.25s;white-space:nowrap}
    .btn-primary{background:#fff;color:var(--ink);box-shadow:0 10px 28px rgba(0,0,0,.16)}
    .btn-primary:hover{background:var(--gold);transform:translateY(-3px)}
    .btn-outline{border:1px solid rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.08)}
    .btn-outline:hover{background:#fff;color:var(--ink)}
    .hero-stats{display:flex;flex-wrap:wrap;gap:30px;margin-top:44px}
    .hero-stat{border-left:1px solid rgba(255,255,255,.35);padding-left:17px}
    .hero-stat strong{display:block;font-size:27px;line-height:1.1}
    .hero-stat span{display:block;color:rgba(255,255,255,.68);font-size:12px;margin-top:4px}
    .section{padding:92px 0}
    .section.compact{padding:68px 0}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:35px}
    .section-kicker{color:var(--blue);margin-bottom:8px}
    .section-intro{max-width:590px;color:var(--muted);font-size:15px}
    .dashboard{display:grid;grid-template-columns:1.05fr 1.95fr;gap:22px}
    .panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-soft)}
    .score-panel{padding:32px;background:var(--ink);color:#fff;min-height:300px;position:relative;overflow:hidden}
    .score-panel:after{content:"";position:absolute;width:210px;height:210px;border:1px solid rgba(255,255,255,.15);border-radius:50%;right:-65px;bottom:-80px}
    .score-number{font-size:70px;line-height:1;font-weight:900;margin:25px 0 8px;color:#dff7f0}
    .score-panel p{color:rgba(255,255,255,.7);font-size:14px}
    .metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .metric{padding:25px;background:#fff;border:1px solid var(--line);border-radius:18px}
    .metric strong{font-size:30px;color:var(--blue);display:block}
    .metric span{font-size:13px;color:var(--muted)}
    .matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .matrix-card{padding:27px 23px;min-height:205px;transition:.25s;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);box-shadow:var(--shadow-soft)}
    .matrix-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
    .icon{width:42px;height:42px;border-radius:13px;background:var(--sky);display:grid;place-items:center;color:var(--blue);font-weight:900;margin-bottom:20px}
    .matrix-card:nth-child(2) .icon{background:var(--mint)}
    .matrix-card:nth-child(3) .icon{background:#fff4d9;color:#9a6d16}
    .matrix-card h3{font-size:18px;margin-bottom:8px}
    .matrix-card p{font-size:13px;color:var(--muted)}
    .story-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
    .story-image{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);position:relative}
    .story-image img{width:100%;height:390px;object-fit:cover}
    .story-image figcaption{position:absolute;left:20px;bottom:18px;padding:8px 13px;background:rgba(16,36,62,.8);color:#fff;border-radius:999px;font-size:12px}
    .story-copy p{color:var(--ink-soft);margin:18px 0}
    .check-list{list-style:none;display:grid;gap:12px;margin-top:24px}
    .check-list li{display:flex;gap:12px;color:var(--ink-soft);font-size:14px}
    .check-list li:before{content:"✓";display:grid;place-items:center;flex:none;width:23px;height:23px;border-radius:50%;background:var(--mint);color:#19775d;font-weight:900}
    .scene-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}
    .scene-main{min-height:360px;padding:34px;border-radius:var(--radius);background:url('/assets/images/coverpic/cover-5.webp') center/cover;position:relative;color:#fff;overflow:hidden}
    .scene-main:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(8,32,54,.88),rgba(8,32,54,.05))}
    .scene-main div{position:absolute;left:34px;right:34px;bottom:28px}
    .scene-main p{color:rgba(255,255,255,.78);font-size:14px;margin-top:8px}
    .scene-side{display:grid;gap:20px}
    .scene-item{padding:28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);box-shadow:var(--shadow-soft)}
    .scene-item strong{display:block;font-size:19px;margin-bottom:6px}
    .scene-item span{color:var(--muted);font-size:13px}
    .process-section{background:var(--sky)}
    .process{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid #c9e3f2;border-radius:var(--radius);overflow:hidden;background:#fff}
    .step{padding:28px 24px;border-right:1px solid var(--line);min-height:205px}
    .step:last-child{border:0}
    .step-num{color:var(--blue);font-size:13px;font-weight:900;letter-spacing:.14em}
    .step h3{font-size:18px;margin:25px 0 9px}
    .step p{font-size:13px;color:var(--muted)}
    .compare{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .compare-card{padding:32px;border-radius:var(--radius);border:1px solid var(--line);background:#fff}
    .compare-card.highlight{background:var(--sky);border-color:#b9def2}
    .compare-card h3{font-size:21px;margin-bottom:17px}
    .compare-list{list-style:none}
    .compare-list li{display:flex;gap:13px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink-soft)}
    .compare-list li:last-child{border-bottom:0}
    .compare-list li:before{content:"·";color:var(--blue);font-size:24px;line-height:1}
    .evidence{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .evidence-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-soft)}
    .evidence-card img{height:170px;width:100%;object-fit:cover}
    .evidence-card div{padding:22px}
    .evidence-card h3{font-size:17px;margin-bottom:7px}
    .evidence-card p{font-size:13px;color:var(--muted)}
    .quote{margin-top:22px;padding:25px 28px;background:var(--ink);border-radius:var(--radius);color:#fff;font-size:17px}
    .quote span{display:block;color:#9fb5c8;font-size:12px;margin-top:10px}
    .faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:45px;align-items:start}
    .faq-intro p{color:var(--muted);margin-top:17px}
    .faq-list{display:grid;gap:10px}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:15px;overflow:hidden}
    .faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;padding:18px 20px;background:#fff;color:var(--ink);font-weight:800}
    .faq-question span{color:var(--blue);font-size:22px;transition:.25s}
    .faq-answer{display:none;padding:0 20px 19px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span{transform:rotate(45deg)}
    .contact-section{background:var(--mint)}
    .contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:30px;align-items:start}
    .contact-copy p{color:var(--ink-soft);margin:17px 0 25px}
    .contact-note{padding:20px;background:rgba(255,255,255,.65);border:1px solid rgba(25,119,93,.14);border-radius:17px;color:#37695e;font-size:13px}
    .contact-form{padding:30px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-soft)}
    .form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{margin-bottom:15px}
    .field label{display:block;font-size:13px;font-weight:800;margin-bottom:6px}
    .field input,.field textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:12px 14px;outline:none;background:#fbfdff;color:var(--ink)}
    .field textarea{min-height:105px;resize:vertical}
    .field input:focus,.field textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(23,105,170,.1)}
    .form-tip{font-size:12px;color:var(--muted);margin-top:10px}
    .cta{padding:72px 0;background:var(--blue-deep);color:#fff}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta p{color:rgba(255,255,255,.72);margin-top:9px}
    .site-footer{background:#0b2037;color:#fff;padding:62px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .footer-brand{font-size:24px;font-weight:900}
    .footer-brand p{font-size:13px;line-height:1.8;color:#9fb5c8;font-weight:400;margin-top:13px;max-width:300px}
    .footer-col h3{font-size:14px;margin-bottom:15px;color:#fff}
    .footer-col a{display:block;color:#9fb5c8;font-size:13px;margin:8px 0}
    .footer-col a:hover{color:#fff}
    .copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:45px;padding-top:20px;display:flex;flex-wrap:wrap;gap:12px 25px;color:#8fa7ba;font-size:12px}
    .copyright a:hover{color:#fff}
    @media(max-width:1100px){
      .nav-side{gap:11px}.nav-link{font-size:13px}.nav-cta{padding:9px 12px}
    }
    @media(max-width:800px){
      .nav-shell{grid-template-columns:1fr auto;min-height:72px}.brand{justify-self:start;font-size:21px}.nav-side{display:none}.menu-btn{display:block}
      .hero{min-height:560px}.hero-inner{padding:75px 0}.section{padding:70px 0}.section-head{display:block}.section-intro{margin-top:14px}
      .dashboard,.story-grid,.scene-grid,.compare,.faq-wrap,.contact-grid{grid-template-columns:1fr;gap:24px}
      .matrix,.evidence{grid-template-columns:repeat(2,1fr)}
      .process{grid-template-columns:repeat(2,1fr)}.step:nth-child(2){border-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .cta-inner{display:block}.cta .btn{margin-top:22px}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:520px){
      .container{width:min(var(--max),calc(100% - 28px))}
      h1{font-size:40px}.hero-copy{font-size:16px}.hero-stats{gap:16px}.hero-stat strong{font-size:23px}
      .matrix,.evidence,.process,.metric-grid,.form-row{grid-template-columns:1fr}
      .step{border-right:0!important;border-bottom:1px solid var(--line)!important}.step:last-child{border-bottom:0!important}
      .story-image img{height:280px}.footer-grid{grid-template-columns:1fr 1fr;gap:24px}.footer-brand{grid-column:1/-1}
      .copyright{display:block}.copyright span{display:block;margin-bottom:8px}
    }

/* roulang page: category5 */
:root{
      --ink:#10243e;
      --ink-soft:#36516e;
      --blue:#1769aa;
      --blue-deep:#0d4f83;
      --sky:#eaf5ff;
      --mint:#dff7f0;
      --gold:#e7b65b;
      --white:#fff;
      --paper:#f7fbff;
      --line:#dbe8f2;
      --muted:#71859a;
      --shadow:0 18px 55px rgba(19,72,112,.12);
      --shadow-soft:0 10px 30px rgba(19,72,112,.08);
      --radius:24px;
      --radius-sm:15px;
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.8;overflow-x:hidden}
    a{text-decoration:none;color:inherit;transition:.25s ease}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--max),calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(247,251,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid rgba(219,232,242,.9)}
    .nav-shell{min-height:82px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:22px}
    .nav-side{display:flex;align-items:center;gap:18px}
    .nav-side.right{justify-content:flex-end}
    .nav-link{position:relative;color:var(--ink-soft);font-size:14px;font-weight:600;padding:8px 3px;white-space:nowrap}
    .nav-link:after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--blue);transition:.25s}
    .nav-link:hover,.nav-link.active{color:var(--blue)}
    .nav-link:hover:after,.nav-link.active:after{right:0}
    .brand{text-align:center;font-weight:900;letter-spacing:.08em;color:var(--ink);font-size:23px;white-space:nowrap}
    .brand span{display:block;color:var(--blue);font-size:10px;letter-spacing:.22em;font-weight:700;line-height:1.2}
    .nav-cta{background:var(--ink);color:#fff;border-radius:999px;padding:10px 17px;font-size:13px;font-weight:700;box-shadow:0 8px 20px rgba(16,36,62,.15)}
    .nav-cta:hover{background:var(--blue);transform:translateY(-2px)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:9px 12px;color:var(--ink)}
    .mobile-nav{display:none}
    .hero{position:relative;overflow:hidden;background:#eef7fd}
    .hero:before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(234,245,255,.95),rgba(247,251,255,.8) 58%,rgba(223,247,240,.7));z-index:0}
    .hero-inner{position:relative;z-index:1;padding:92px 0 82px;display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
    .eyebrow,.section-kicker{color:var(--blue);font-size:12px;font-weight:900;letter-spacing:.16em}
    .eyebrow{display:inline-flex;gap:8px;align-items:center;margin-bottom:17px}
    .eyebrow:before{content:"";width:28px;height:2px;background:var(--gold)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,5vw,68px);line-height:1.15;letter-spacing:-.05em;margin-bottom:22px}
    h2{font-size:clamp(28px,3.5vw,44px);line-height:1.25;letter-spacing:-.035em;margin-bottom:15px}
    h3{line-height:1.4}
    .hero-copy{font-size:18px;color:var(--ink-soft);max-width:650px;margin-bottom:30px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:13px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:999px;padding:13px 22px;font-weight:800;font-size:14px;transition:.25s;white-space:nowrap}
    .btn-primary{background:var(--ink);color:#fff;box-shadow:0 10px 28px rgba(16,36,62,.16)}
    .btn-primary:hover{background:var(--blue);transform:translateY(-3px)}
    .btn-light{background:#fff;color:var(--ink);border:1px solid var(--line)}
    .btn-light:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-3px)}
    .hero-panel{background:rgba(255,255,255,.75);border:1px solid rgba(255,255,255,.95);border-radius:30px;padding:25px;box-shadow:var(--shadow)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:18px}
    .status{display:inline-flex;align-items:center;gap:7px;color:#24745f;font-size:12px;font-weight:800}
    .status:before{content:"";width:8px;height:8px;border-radius:50%;background:#41b990;box-shadow:0 0 0 5px #dff7f0}
    .signal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
    .signal{padding:18px 12px;background:var(--paper);border:1px solid var(--line);border-radius:16px;text-align:center}
    .signal-icon{width:40px;height:40px;border-radius:13px;background:var(--sky);color:var(--blue);display:grid;place-items:center;font-weight:900;margin:0 auto 9px}
    .signal strong{display:block;font-size:20px}
    .signal span{font-size:11px;color:var(--muted)}
    .mini-bar{margin-top:20px;padding:17px;border-radius:16px;background:var(--ink);color:#fff}
    .mini-bar p{font-size:12px;color:rgba(255,255,255,.7);margin-bottom:8px}
    .bar-track{height:7px;border-radius:9px;background:rgba(255,255,255,.18);overflow:hidden}
    .bar-track i{display:block;width:92%;height:100%;background:var(--gold);border-radius:9px}
    .section{padding:94px 0}
    .section.compact{padding:70px 0}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:38px}
    .section-intro{max-width:590px;color:var(--muted);font-size:15px}
    .matrix-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .matrix-card,.info-card,.step-card,.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);box-shadow:var(--shadow-soft);transition:.25s}
    .matrix-card{padding:25px 21px;min-height:205px}
    .matrix-card:hover,.info-card:hover,.step-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .matrix-card:nth-child(2n) .signal-icon{background:var(--mint)}
    .matrix-card h3{font-size:18px;margin:13px 0 7px}
    .matrix-card p,.info-card p,.step-card p{font-size:13px;color:var(--muted);margin-bottom:0}
    .dark-section{background:var(--ink);color:#fff}
    .dark-section .section-intro{color:rgba(255,255,255,.67)}
    .dark-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:55px;align-items:start}
    .dark-copy p{color:rgba(255,255,255,.72);font-size:16px}
    .dark-list{display:grid;gap:13px}
    .dark-list li{list-style:none;padding:18px 20px;border:1px solid rgba(255,255,255,.14);border-radius:15px;background:rgba(255,255,255,.05)}
    .dark-list strong{display:block;font-size:16px;margin-bottom:4px}
    .dark-list span{font-size:13px;color:rgba(255,255,255,.6)}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:center}
    .split img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;max-height:430px;object-fit:cover}
    .check-list{display:grid;gap:13px;padding:0;margin:25px 0 0}
    .check-list li{list-style:none;display:flex;gap:12px;color:var(--ink-soft);font-size:14px}
    .check-list li:before{content:"✓";display:grid;place-items:center;flex:0 0 23px;height:23px;border-radius:50%;background:var(--mint);color:#19735b;font-weight:900}
    .stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
    .stat-box{background:#fff;padding:27px 22px}
    .stat-box strong{font-size:32px;color:var(--blue);display:block;line-height:1.1}
    .stat-box span{font-size:13px;color:var(--muted)}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
    .step-card{padding:24px;position:relative}
    .step-num{width:35px;height:35px;border-radius:11px;background:var(--sky);display:grid;place-items:center;color:var(--blue);font-weight:900;margin-bottom:19px}
    .step-card h3{font-size:17px;margin-bottom:8px}
    .compare{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .compare-card{padding:29px;border-radius:var(--radius);border:1px solid var(--line);background:#fff}
    .compare-card.highlight{background:var(--sky);border-color:#b9def2}
    .compare-card h3{font-size:21px;margin-bottom:16px}
    .compare-list{padding:0;margin:0;list-style:none}
    .compare-list li{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink-soft)}
    .compare-list li:last-child{border-bottom:0}
    .compare-list li:before{content:"＋";color:var(--blue);font-weight:900}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
    details{background:#fff;border:1px solid var(--line);border-radius:15px;padding:20px 22px;box-shadow:var(--shadow-soft)}
    details[open]{border-color:#a9d3ea}
    summary{cursor:pointer;font-weight:800;font-size:15px;list-style:none;display:flex;justify-content:space-between;gap:15px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"＋";color:var(--blue);font-size:20px;line-height:1}
    details[open] summary:after{content:"－"}
    details p{color:var(--muted);font-size:14px;margin:13px 0 0}
    .cta{background:var(--blue-deep);color:#fff;border-radius:30px;padding:52px 58px;display:flex;justify-content:space-between;gap:30px;align-items:center;box-shadow:var(--shadow)}
    .cta h2{margin-bottom:9px}
    .cta p{color:rgba(255,255,255,.72);margin-bottom:0;max-width:650px}
    .contact-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:35px;align-items:start}
    .contact-copy p{color:var(--muted)}
    .contact-form{background:#fff;border:1px solid var(--line);padding:28px;border-radius:var(--radius);box-shadow:var(--shadow-soft)}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
    label{display:grid;gap:7px;color:var(--ink-soft);font-size:13px;font-weight:700}
    input,textarea{width:100%;border:1px solid var(--line);border-radius:12px;background:var(--paper);padding:12px 14px;color:var(--ink);outline:none}
    textarea{min-height:120px;resize:vertical}
    input:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(23,105,170,.1)}
    .form-full{grid-column:1/-1}
    .form-note{font-size:12px;color:var(--muted);margin:13px 0 0}
    .site-footer{background:#0b1d31;color:#fff;padding:64px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}
    .footer-brand{font-size:22px;font-weight:900;letter-spacing:.08em}
    .footer-brand p{font-size:13px;line-height:1.9;font-weight:400;color:rgba(255,255,255,.58);max-width:310px;margin-top:13px}
    .footer-col h3{font-size:14px;margin:0 0 14px;color:#fff}
    .footer-col a{display:block;color:rgba(255,255,255,.58);font-size:13px;margin:8px 0}
    .footer-col a:hover,.copyright a:hover{color:#fff}
    .copyright{border-top:1px solid rgba(255,255,255,.13);padding-top:20px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;color:rgba(255,255,255,.48);font-size:12px}
    .copyright a{color:rgba(255,255,255,.68)}
    @media(max-width:1024px){
      .nav-side{gap:10px}.nav-link{font-size:12px}
      .hero-inner{gap:35px}.matrix-grid{grid-template-columns:repeat(2,1fr)}
      .steps{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 30px))}
      .nav-shell{display:flex;justify-content:space-between;min-height:70px}
      .nav-side{display:none}.brand{font-size:20px}.menu-btn{display:block}
      .mobile-nav{padding:10px 15px 18px;border-top:1px solid var(--line);background:var(--paper)}
      .mobile-nav.open{display:grid;grid-template-columns:1fr 1fr;gap:5px}
      .mobile-nav a{padding:10px 8px;color:var(--ink-soft);font-size:13px;border-radius:9px}
      .mobile-nav a:hover,.mobile-nav a.active{background:var(--sky);color:var(--blue)}
      .hero-inner,.split,.dark-grid,.contact-wrap{grid-template-columns:1fr}
      .hero-inner{padding:70px 0 65px}
      .hero-panel{max-width:620px}
      .section{padding:70px 0}.section-head{display:block;margin-bottom:28px}
      .section-intro{margin-top:12px}
      .stat-band{grid-template-columns:repeat(2,1fr)}
      .compare,.faq-grid{grid-template-columns:1fr}
      .cta{display:block;padding:38px 28px}.cta .btn{margin-top:24px}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:520px){
      h1{font-size:39px}.hero-copy{font-size:16px}
      .matrix-grid,.steps,.form-grid{grid-template-columns:1fr}
      .form-full{grid-column:auto}
      .stat-band{grid-template-columns:1fr 1fr}
      .signal-grid{gap:7px}.signal{padding:14px 7px}
      .signal strong{font-size:17px}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:grid;gap:8px}
    }

/* roulang page: category4 */
:root{
      --ink:#10243e;
      --ink-soft:#36516e;
      --blue:#1769aa;
      --blue-deep:#0d4f83;
      --sky:#eaf5ff;
      --mint:#dff7f0;
      --gold:#e7b65b;
      --white:#fff;
      --paper:#f7fbff;
      --line:#dbe8f2;
      --muted:#71859a;
      --shadow:0 18px 55px rgba(19,72,112,.12);
      --shadow-soft:0 10px 30px rgba(19,72,112,.08);
      --radius:24px;
      --radius-sm:15px;
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.8;overflow-x:hidden}
    a{text-decoration:none;color:inherit;transition:.25s ease}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--max),calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(247,251,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid rgba(219,232,242,.9)}
    .nav-shell{min-height:82px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:22px}
    .nav-side{display:flex;align-items:center;gap:18px}
    .nav-side.right{justify-content:flex-end}
    .nav-link{position:relative;color:var(--ink-soft);font-size:14px;font-weight:600;padding:8px 3px;white-space:nowrap}
    .nav-link:after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--blue);transition:.25s}
    .nav-link:hover,.nav-link.active{color:var(--blue)}
    .nav-link:hover:after,.nav-link.active:after{right:0}
    .brand{text-align:center;font-weight:900;letter-spacing:.08em;color:var(--ink);font-size:23px;white-space:nowrap}
    .brand span{display:block;color:var(--blue);font-size:10px;letter-spacing:.22em;font-weight:700;line-height:1.2}
    .nav-cta{background:var(--ink);color:#fff;border-radius:999px;padding:10px 17px;font-size:13px;font-weight:700;box-shadow:0 8px 20px rgba(16,36,62,.15)}
    .nav-cta:hover{background:var(--blue);transform:translateY(-2px)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:9px 12px;color:var(--ink)}
    .mobile-nav{display:none;padding:10px 20px 20px;border-top:1px solid var(--line);background:var(--paper)}
    .mobile-nav.open{display:grid}
    .mobile-nav a{padding:10px 0;color:var(--ink-soft);border-bottom:1px solid var(--line);font-weight:600}
    .mobile-nav a:hover{color:var(--blue)}
    .inner-hero{position:relative;overflow:hidden;background:#123451 url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;color:#fff}
    .inner-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(8,32,54,.94),rgba(8,32,54,.65) 56%,rgba(8,32,54,.22))}
    .inner-hero-inner{position:relative;z-index:1;min-height:530px;display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:60px;padding:80px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#bce7ff;font-size:13px;font-weight:800;letter-spacing:.16em;margin-bottom:17px}
    .eyebrow:before{content:"";width:28px;height:2px;background:var(--gold)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,5vw,68px);line-height:1.14;letter-spacing:-.04em;margin-bottom:22px}
    h2{font-size:clamp(28px,3.3vw,44px);line-height:1.25;letter-spacing:-.03em;margin-bottom:13px}
    h3{line-height:1.4}
    .hero-copy{font-size:17px;color:rgba(255,255,255,.82);max-width:650px;margin-bottom:28px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:13px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:999px;padding:13px 21px;font-weight:800;font-size:14px;transition:.25s;white-space:nowrap}
    .btn-primary{background:#fff;color:var(--ink);box-shadow:0 10px 28px rgba(0,0,0,.16)}
    .btn-primary:hover{background:var(--gold);transform:translateY(-3px)}
    .btn-outline{border:1px solid rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.08)}
    .btn-outline:hover{background:#fff;color:var(--ink)}
    .portrait-panel{width:min(100%,330px);justify-self:end;border:10px solid rgba(255,255,255,.16);border-radius:180px 180px 26px 26px;overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,.25);background:#fff}
    .portrait-panel img{width:100%;height:420px;object-fit:cover}
    .section{padding:94px 0}
    .section.compact{padding:72px 0}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:38px}
    .section-kicker{color:var(--blue);font-size:12px;font-weight:900;letter-spacing:.16em;margin-bottom:8px}
    .section-intro{max-width:610px;color:var(--muted);font-size:15px}
    .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
    .metric{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:26px 22px;box-shadow:var(--shadow-soft)}
    .metric strong{display:block;color:var(--blue);font-size:34px;line-height:1.1;margin-bottom:8px}
    .metric span{font-size:13px;color:var(--muted)}
    .split{display:grid;grid-template-columns:.9fr 1.1fr;gap:65px;align-items:center}
    .image-card{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#d9edf9}
    .image-card img{width:100%;height:430px;object-fit:cover}
    .image-note{position:absolute;left:20px;bottom:20px;background:rgba(255,255,255,.92);border-radius:14px;padding:13px 16px;font-size:13px;color:var(--ink);box-shadow:var(--shadow-soft)}
    .check-list{display:grid;gap:16px;margin:25px 0 0;padding:0;list-style:none}
    .check-list li{display:flex;gap:14px;align-items:flex-start;color:var(--ink-soft);font-size:15px}
    .check-list b{display:grid;place-items:center;flex:0 0 25px;height:25px;border-radius:50%;background:var(--mint);color:#17846b;font-size:14px}
    .matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
    .matrix-card{padding:27px 23px;min-height:205px;transition:.25s;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);box-shadow:var(--shadow-soft)}
    .matrix-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
    .matrix-card h3{font-size:18px;margin:15px 0 8px}
    .matrix-card p{font-size:13px;color:var(--muted);margin-bottom:0}
    .icon{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;background:var(--sky);color:var(--blue);font-weight:900}
    .matrix-card:nth-child(2) .icon{background:var(--mint)}
    .matrix-card:nth-child(3) .icon{background:#fff4d9;color:#9a6d16}
    .matrix-card:nth-child(4) .icon{background:#f0eaff;color:#7253ad}
    .matrix-card:nth-child(5) .icon{background:#ffe8e6;color:#bd5b50}
    .matrix-card:nth-child(6) .icon{background:#e8f1f7;color:#36516e}
    .flow-section{background:var(--sky)}
    .flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid #c7dfed;border-radius:var(--radius);overflow:hidden;background:#fff}
    .flow-step{position:relative;padding:29px 24px;min-height:205px;border-right:1px solid var(--line)}
    .flow-step:last-child{border-right:0}
    .flow-step em{font-style:normal;color:var(--blue);font-size:12px;font-weight:900;letter-spacing:.12em}
    .flow-step h3{font-size:18px;margin:19px 0 9px}
    .flow-step p{font-size:13px;color:var(--muted);margin:0}
    .use-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
    .use-card{border-radius:var(--radius);overflow:hidden;min-height:270px;position:relative;background:#183b5b;color:#fff}
    .use-card img{width:100%;height:100%;min-height:270px;object-fit:cover;opacity:.62}
    .use-card:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(9,31,50,.88),transparent 75%)}
    .use-card-content{position:absolute;z-index:1;left:27px;right:27px;bottom:25px}
    .use-card h3{font-size:22px;margin-bottom:5px}
    .use-card p{font-size:13px;color:rgba(255,255,255,.78);margin:0}
    .use-stack{display:grid;gap:18px}
    .use-stack .use-card{min-height:126px}
    .use-stack .use-card img{min-height:126px}
    .use-stack .use-card-content{bottom:17px;left:20px}
    .use-stack .use-card h3{font-size:18px}
    .compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .compare-card{padding:32px;border-radius:var(--radius);border:1px solid var(--line);background:#fff}
    .compare-card.highlight{background:var(--sky);border-color:#b9def2}
    .compare-label{display:inline-block;border-radius:999px;background:#edf2f5;color:var(--muted);font-size:12px;padding:5px 11px;margin-bottom:15px}
    .compare-card.highlight .compare-label{background:#cceafa;color:var(--blue)}
    .compare-card h3{font-size:22px;margin-bottom:17px}
    .compare-list{list-style:none;padding:0;margin:0}
    .compare-list li{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink-soft)}
    .compare-list li:last-child{border-bottom:0}
    .compare-list b{color:var(--blue)}
    .quote-section{background:var(--ink);color:#fff}
    .quote-section .section-intro{color:rgba(255,255,255,.65)}
    .quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .quote{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.13);border-radius:var(--radius-sm);padding:25px}
    .quote p{color:rgba(255,255,255,.8);font-size:14px;margin-bottom:20px}
    .quote strong{font-size:14px;color:#bce7ff}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px 18px}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:21px 23px}
    .faq-item summary{cursor:pointer;font-weight:800;list-style:none;padding-right:25px;position:relative}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";position:absolute;right:0;color:var(--blue);font-size:21px;line-height:1}
    .faq-item[open] summary:after{content:"－"}
    .faq-item p{color:var(--muted);font-size:14px;margin:13px 0 0}
    .cta-panel{display:grid;grid-template-columns:1fr .9fr;gap:38px;align-items:center;background:linear-gradient(120deg,#dff7f0,#eaf5ff);border:1px solid #c7e7e3;border-radius:var(--radius);padding:48px}
    .cta-panel p{color:var(--ink-soft);max-width:570px}
    .contact-form{display:grid;gap:12px;background:#fff;padding:24px;border-radius:20px;box-shadow:var(--shadow-soft)}
    .contact-form input,.contact-form textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:12px 14px;outline:none;color:var(--ink);background:#fbfdff}
    .contact-form textarea{min-height:92px;resize:vertical}
    .contact-form input:focus,.contact-form textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(23,105,170,.1)}
    .contact-form .btn{background:var(--ink);color:#fff}
    .contact-form .btn:hover{background:var(--blue);transform:translateY(-2px)}
    .form-note{font-size:12px;color:var(--muted);margin:0}
    .site-footer{background:#0b1d31;color:#fff;padding:65px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}
    .footer-brand{font-size:22px;font-weight:900;letter-spacing:.08em}
    .footer-brand p{font-size:13px;line-height:1.8;font-weight:400;color:rgba(255,255,255,.6);max-width:300px;margin-top:12px;letter-spacing:0}
    .footer-col{display:grid;align-content:start;gap:9px}
    .footer-col h3{font-size:14px;margin:0 0 8px;color:#bce7ff}
    .footer-col a{font-size:13px;color:rgba(255,255,255,.62)}
    .footer-col a:hover{color:#fff}
    .copyright{border-top:1px solid rgba(255,255,255,.14);padding-top:20px;display:flex;flex-wrap:wrap;gap:12px 26px;color:rgba(255,255,255,.48);font-size:12px}
    .copyright a:hover{color:#fff}
    @media(max-width:1100px){
      .nav-side{gap:11px}
      .nav-link{font-size:13px}
      .inner-hero-inner{gap:35px}
    }
    @media(max-width:820px){
      .nav-shell{grid-template-columns:1fr auto;min-height:72px}
      .nav-side{display:none}
      .brand{text-align:left;font-size:21px}
      .menu-btn{display:block}
      .inner-hero-inner,.split,.cta-panel{grid-template-columns:1fr}
      .inner-hero-inner{min-height:auto;padding:72px 0}
      .portrait-panel{justify-self:start;width:250px}
      .portrait-panel img{height:300px}
      .metric-grid{grid-template-columns:repeat(2,1fr)}
      .matrix-grid{grid-template-columns:repeat(2,1fr)}
      .flow-grid{grid-template-columns:repeat(2,1fr)}
      .flow-step:nth-child(2){border-right:0}
      .flow-step:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .use-grid,.compare-grid{grid-template-columns:1fr}
      .quote-grid{grid-template-columns:1fr}
      .faq-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
    }
    @media(max-width:520px){
      .container{width:min(var(--max),calc(100% - 28px))}
      .section{padding:68px 0}
      .section-head{display:block;margin-bottom:27px}
      .section-intro{margin-top:12px}
      h1{font-size:40px}
      .hero-copy{font-size:15px}
      .hero-actions .btn{width:100%}
      .metric-grid,.matrix-grid,.flow-grid{grid-template-columns:1fr}
      .flow-step{border-right:0;border-bottom:1px solid var(--line)}
      .flow-step:last-child{border-bottom:0}
      .portrait-panel{width:210px}
      .portrait-panel img{height:250px}
      .cta-panel{padding:27px 20px}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:1/-1}
      .copyright{display:grid}
    }

/* roulang page: category7 */
:root{
      --ink:#10243e;
      --ink-soft:#36516e;
      --blue:#1769aa;
      --blue-deep:#0d4f83;
      --sky:#eaf5ff;
      --mint:#dff7f0;
      --gold:#e7b65b;
      --white:#fff;
      --paper:#f7fbff;
      --line:#dbe8f2;
      --muted:#71859a;
      --shadow:0 18px 55px rgba(19,72,112,.12);
      --shadow-soft:0 10px 30px rgba(19,72,112,.08);
      --radius:24px;
      --radius-sm:15px;
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.8;overflow-x:hidden}
    a{text-decoration:none;color:inherit;transition:.25s ease}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--max),calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(247,251,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid rgba(219,232,242,.9)}
    .nav-shell{min-height:82px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:22px}
    .nav-side{display:flex;align-items:center;gap:18px}
    .nav-side.right{justify-content:flex-end}
    .nav-link{position:relative;color:var(--ink-soft);font-size:14px;font-weight:600;padding:8px 3px;white-space:nowrap}
    .nav-link:after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--blue);transition:.25s}
    .nav-link:hover,.nav-link.active{color:var(--blue)}
    .nav-link:hover:after,.nav-link.active:after{right:0}
    .brand{text-align:center;font-weight:900;letter-spacing:.08em;color:var(--ink);font-size:23px;white-space:nowrap}
    .brand span{display:block;color:var(--blue);font-size:10px;letter-spacing:.22em;font-weight:700;line-height:1.2}
    .nav-cta{background:var(--ink);color:#fff;border-radius:999px;padding:10px 17px;font-size:13px;font-weight:700;box-shadow:0 8px 20px rgba(16,36,62,.15)}
    .nav-cta:hover{background:var(--blue);transform:translateY(-2px)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:9px 12px;color:var(--ink)}
    .mobile-nav{display:none}
    .page-hero{position:relative;overflow:hidden;background:#123451 url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;color:#fff}
    .page-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,32,54,.91),rgba(8,32,54,.62) 58%,rgba(8,32,54,.25))}
    .page-hero-inner{position:relative;z-index:1;padding:92px 0 104px;display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
    .eyebrow,.section-kicker{font-size:12px;font-weight:900;letter-spacing:.16em}
    .eyebrow{display:inline-flex;gap:9px;align-items:center;color:#bce7ff;margin-bottom:18px}
    .eyebrow:before{content:"";width:28px;height:2px;background:var(--gold)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,5vw,64px);line-height:1.16;letter-spacing:-.04em;margin-bottom:22px}
    .hero-text{max-width:650px;color:rgba(255,255,255,.83);font-size:17px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:30px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:999px;padding:13px 21px;font-weight:800;font-size:14px;transition:.25s;white-space:nowrap}
    .btn-primary{background:#fff;color:var(--ink);box-shadow:0 10px 28px rgba(0,0,0,.16)}
    .btn-primary:hover{background:var(--gold);transform:translateY(-3px)}
    .btn-outline{border:1px solid rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.08)}
    .btn-outline:hover{background:#fff;color:var(--ink)}
    .roadmap{background:rgba(255,255,255,.11);border:1px solid rgba(255,255,255,.25);border-radius:var(--radius);padding:28px;backdrop-filter:blur(10px)}
    .roadmap-title{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-bottom:25px}
    .roadmap-title strong{font-size:19px}.roadmap-title span{color:#bce7ff;font-size:12px}
    .roadmap-line{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
    .roadmap-step{position:relative;padding-top:21px;border-top:2px solid rgba(255,255,255,.35);font-size:13px;color:rgba(255,255,255,.76)}
    .roadmap-step:before{content:"";position:absolute;top:-7px;left:0;width:12px;height:12px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 5px rgba(231,182,91,.16)}
    .roadmap-step b{display:block;color:#fff;margin-bottom:5px}
    .section{padding:96px 0}
    .section.compact{padding:70px 0}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:38px}
    .section-kicker{color:var(--blue);margin-bottom:8px}
    h2{font-size:clamp(28px,3vw,42px);line-height:1.25;letter-spacing:-.03em;margin-bottom:10px}
    .section-intro{max-width:590px;color:var(--muted);font-size:15px}
    .metric-band{background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-soft)}
    .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
    .metric{padding:28px 25px;border-right:1px solid var(--line)}
    .metric:last-child{border:0}.metric strong{display:block;font-size:31px;color:var(--blue);line-height:1.2}.metric span{font-size:13px;color:var(--muted)}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:center}
    .image-card{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
    .image-card img{width:100%;height:440px;object-fit:cover}
    .image-caption{position:absolute;left:22px;right:22px;bottom:20px;background:rgba(16,36,62,.82);color:#fff;border-radius:15px;padding:15px 18px;font-size:13px}
    .check-list{display:grid;gap:18px;margin:28px 0 0;padding:0;list-style:none}
    .check-list li{display:grid;grid-template-columns:32px 1fr;gap:13px;color:var(--ink-soft);font-size:15px}
    .check-list i{width:29px;height:29px;border-radius:50%;background:var(--mint);color:#197d69;display:grid;place-items:center;font-style:normal;font-weight:900}
    .matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
    .matrix-card{padding:27px 23px;min-height:210px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);box-shadow:var(--shadow-soft);transition:.25s}
    .matrix-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
    .icon{width:44px;height:44px;border-radius:14px;background:var(--sky);color:var(--blue);display:grid;place-items:center;font-weight:900;margin-bottom:18px}
    .matrix-card:nth-child(2) .icon{background:var(--mint);color:#197d69}.matrix-card:nth-child(3) .icon{background:#fff4d9;color:#9a6d16}
    .matrix-card h3{font-size:18px;margin-bottom:8px}.matrix-card p{font-size:13px;color:var(--muted)}
    .dark-section{background:var(--ink);color:#fff}
    .dark-section .section-intro{color:rgba(255,255,255,.67)}
    .dark-section .section-kicker{color:#9fd9f7}
    .service-table{border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);overflow:hidden}
    .service-row{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:20px;padding:20px 25px;border-bottom:1px solid rgba(255,255,255,.13);align-items:center}
    .service-row:last-child{border-bottom:0}.service-row:first-child{background:rgba(255,255,255,.08);color:#bce7ff;font-size:12px;font-weight:800}
    .service-row:not(:first-child){color:rgba(255,255,255,.78);font-size:14px}.service-row strong{color:#fff}
    .compare{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .compare-card{padding:32px;border-radius:var(--radius);border:1px solid var(--line);background:#fff}
    .compare-card.highlight{background:var(--sky);border-color:#b9def2}
    .compare-card h3{font-size:21px;margin-bottom:18px}.compare-card p{color:var(--muted);font-size:14px}
    .compare-list{list-style:none;padding:0;margin:20px 0 0}.compare-list li{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink-soft)}
    .compare-list li:last-child{border-bottom:0}.compare-list b{color:var(--blue)}
    .quote{background:linear-gradient(135deg,#eaf5ff,#f4fffc);border:1px solid #cfe5f2;border-radius:var(--radius);padding:36px 42px;display:grid;grid-template-columns:80px 1fr;gap:25px;align-items:start}
    .quote-mark{font-size:70px;line-height:.8;color:var(--blue);font-family:Georgia,serif}.quote p{font-size:21px;line-height:1.7;margin:0;color:var(--ink)}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:21px 23px}
    .faq-item summary{cursor:pointer;font-weight:800;list-style:none;padding-right:25px;position:relative}.faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";position:absolute;right:0;color:var(--blue);font-size:22px;line-height:1}
    .faq-item[open] summary:after{content:"−"}.faq-item p{color:var(--muted);font-size:14px;margin:14px 0 0}
    .contact-box{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:var(--radius);padding:40px;display:grid;grid-template-columns:1fr 1fr;gap:45px}
    .contact-box h2{margin-bottom:17px}.contact-box p{color:var(--muted);font-size:14px}
    .form-grid{display:grid;gap:13px}.form-grid input,.form-grid textarea{width:100%;border:1px solid var(--line);background:var(--paper);border-radius:13px;padding:13px 15px;outline:0;color:var(--ink)}
    .form-grid textarea{min-height:112px;resize:vertical}.form-grid input:focus,.form-grid textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(23,105,170,.1)}
    .form-grid .btn{background:var(--blue);color:#fff}.form-grid .btn:hover{background:var(--blue-deep);transform:translateY(-2px)}
    .site-footer{background:#0c1d31;color:#fff;padding:65px 0 25px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px;border-bottom:1px solid rgba(255,255,255,.14)}
    .footer-brand{font-weight:900;font-size:22px}.footer-brand p{max-width:310px;margin-top:12px;color:rgba(255,255,255,.62);font-size:13px;font-weight:400}
    .footer-col{display:grid;align-content:start;gap:9px}.footer-col h3{font-size:14px;color:#bce7ff;margin-bottom:8px}.footer-col a{font-size:13px;color:rgba(255,255,255,.62)}.footer-col a:hover{color:#fff}
    .copyright{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:22px;color:rgba(255,255,255,.48);font-size:12px}.copyright a:hover{color:#fff}
    @media(max-width:1024px){.nav-side{gap:11px}.nav-link{font-size:12px}.page-hero-inner{gap:35px}.section{padding:78px 0}.matrix{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.container{width:min(var(--max),calc(100% - 30px))}.nav-shell{grid-template-columns:1fr auto;min-height:70px}.nav-side{display:none}.brand{text-align:left;font-size:21px}.menu-btn{display:block;justify-self:end}.mobile-nav{padding:10px 15px 18px;border-top:1px solid var(--line);background:var(--paper)}.mobile-nav.open{display:grid;gap:3px}.mobile-nav a{padding:10px 5px;color:var(--ink-soft);font-size:14px;border-bottom:1px solid var(--line)}.mobile-nav a:hover,.mobile-nav a.active{color:var(--blue)}.page-hero-inner,.split,.contact-box{grid-template-columns:1fr;gap:30px}.page-hero-inner{padding:70px 0 78px}.metrics{grid-template-columns:repeat(2,1fr)}.metric:nth-child(2){border-right:0}.metric:nth-child(-n+2){border-bottom:1px solid var(--line)}.service-row{grid-template-columns:1fr;gap:5px}.service-row:first-child{display:none}.compare,.faq-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.quote{grid-template-columns:45px 1fr;padding:28px}.quote p{font-size:17px}}
    @media(max-width:520px){h1{font-size:37px}.hero-actions .btn{width:100%}.roadmap{padding:21px}.roadmap-line{grid-template-columns:1fr 1fr;gap:20px}.section{padding:62px 0}.section-head{display:block;margin-bottom:28px}.section-intro{margin-top:14px}.matrix{grid-template-columns:1fr}.image-card img{height:310px}.contact-box{padding:25px}.footer-grid{grid-template-columns:1fr}.copyright{display:grid}.metric{padding:22px 15px}.metric strong{font-size:25px}}

/* roulang page: category6 */
:root{
      --ink:#10243e;
      --ink-soft:#36516e;
      --blue:#1769aa;
      --blue-deep:#0d4f83;
      --sky:#eaf5ff;
      --mint:#dff7f0;
      --gold:#e7b65b;
      --white:#fff;
      --paper:#f7fbff;
      --line:#dbe8f2;
      --muted:#71859a;
      --shadow:0 18px 55px rgba(19,72,112,.12);
      --shadow-soft:0 10px 30px rgba(19,72,112,.08);
      --radius:24px;
      --radius-sm:15px;
      --max:1200px;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.8;overflow-x:hidden}
    a{text-decoration:none;color:inherit;transition:.25s ease}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--max),calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(247,251,255,.93);backdrop-filter:blur(18px);border-bottom:1px solid rgba(219,232,242,.9)}
    .nav-shell{min-height:82px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:22px}
    .nav-side{display:flex;align-items:center;gap:18px}
    .nav-side.right{justify-content:flex-end}
    .nav-link{position:relative;color:var(--ink-soft);font-size:14px;font-weight:600;padding:8px 3px;white-space:nowrap}
    .nav-link:after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--blue);transition:.25s}
    .nav-link:hover,.nav-link.active{color:var(--blue)}
    .nav-link:hover:after,.nav-link.active:after{right:0}
    .brand{text-align:center;font-weight:900;letter-spacing:.08em;color:var(--ink);font-size:23px;white-space:nowrap}
    .brand span{display:block;color:var(--blue);font-size:10px;letter-spacing:.22em;font-weight:700;line-height:1.2}
    .nav-cta{background:var(--ink);color:#fff;border-radius:999px;padding:10px 17px;font-size:13px;font-weight:700;box-shadow:0 8px 20px rgba(16,36,62,.15)}
    .nav-cta:hover{background:var(--blue);transform:translateY(-2px)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:9px 12px;color:var(--ink)}
    .mobile-nav{display:none}
    .hero{position:relative;overflow:hidden;color:#fff;background:#123451 url('/assets/images/backpic/back-2.jpg') center/cover no-repeat}
    .hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,32,54,.94),rgba(8,32,54,.7) 52%,rgba(8,32,54,.28))}
    .hero-inner{position:relative;z-index:1;padding:92px 0 105px}
    .hero-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:65px;align-items:center}
    .eyebrow,.section-kicker{color:#a9defb;font-size:12px;font-weight:900;letter-spacing:.16em;text-transform:uppercase}
    .eyebrow:before{content:"";display:inline-block;width:28px;height:2px;background:var(--gold);vertical-align:middle;margin-right:10px}
    h1{font-size:clamp(38px,5.2vw,68px);line-height:1.15;letter-spacing:-.04em;margin:18px 0 22px}
    h2{font-size:clamp(27px,3.2vw,42px);line-height:1.25;letter-spacing:-.03em}
    .hero-copy{font-size:17px;color:rgba(255,255,255,.82);max-width:620px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:30px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:999px;padding:13px 21px;font-weight:800;font-size:14px;transition:.25s;white-space:nowrap}
    .btn-primary{background:#fff;color:var(--ink);box-shadow:0 10px 28px rgba(0,0,0,.16)}
    .btn-primary:hover{background:var(--gold);transform:translateY(-3px)}
    .btn-outline{border:1px solid rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.08)}
    .btn-outline:hover{background:#fff;color:var(--ink)}
    .support-panel{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);border-radius:28px;padding:28px;box-shadow:0 24px 60px rgba(0,0,0,.18);backdrop-filter:blur(12px)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}
    .panel-top small{color:rgba(255,255,255,.68)}
    .status-dot{width:9px;height:9px;border-radius:50%;background:#77e0bd;box-shadow:0 0 0 6px rgba(119,224,189,.16)}
    .progress-wrap{display:flex;gap:23px;align-items:center}
    .progress-ring{width:142px;height:142px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--gold) 0 78%,rgba(255,255,255,.2) 78% 100%);position:relative;flex:0 0 auto}
    .progress-ring:after{content:"";position:absolute;inset:12px;background:#173b59;border-radius:50%}
    .progress-ring strong,.progress-ring span{position:relative;z-index:1;text-align:center;display:block}
    .progress-ring strong{font-size:30px;line-height:1}
    .progress-ring span{font-size:11px;color:rgba(255,255,255,.7);margin-top:5px}
    .panel-info strong{font-size:24px;display:block}
    .panel-info p{font-size:13px;color:rgba(255,255,255,.72);margin-top:7px}
    .tier-preview{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-top:25px}
    .tier-mini{border:1px solid rgba(255,255,255,.2);border-radius:13px;padding:12px;font-size:12px;color:rgba(255,255,255,.82)}
    .tier-mini b{display:block;color:#fff;font-size:15px;margin-bottom:3px}
    .section{padding:98px 0}
    .section.compact{padding:70px 0}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:38px}
    .section-kicker{color:var(--blue);margin-bottom:9px}
    .section-intro{max-width:600px;color:var(--muted);font-size:15px}
    .soft-section{background:#edf7fd}
    .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
    .metric{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:25px 21px;box-shadow:var(--shadow-soft)}
    .metric strong{display:block;color:var(--blue);font-size:34px;line-height:1.1}
    .metric span{display:block;color:var(--muted);font-size:13px;margin-top:7px}
    .matrix-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:50px;align-items:start}
    .matrix-image{height:430px;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
    .matrix-image img{width:100%;height:100%;object-fit:cover}
    .service-list{display:grid;gap:14px}
    .service-item{display:grid;grid-template-columns:48px 1fr auto;gap:16px;align-items:start;padding:20px;background:#fff;border:1px solid var(--line);border-radius:17px;transition:.25s}
    .service-item:hover{transform:translateX(5px);box-shadow:var(--shadow-soft);border-color:#b8d8ea}
    .icon{width:42px;height:42px;display:grid;place-items:center;border-radius:13px;background:var(--sky);color:var(--blue);font-weight:900}
    .service-item h3{font-size:17px;margin-bottom:3px}
    .service-item p{font-size:13px;color:var(--muted)}
    .service-item b{color:var(--blue);font-size:18px}
    .compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .compare-card{padding:30px;border-radius:var(--radius);border:1px solid var(--line);background:#fff}
    .compare-card.highlight{background:var(--sky);border-color:#b9def2}
    .compare-card h3{font-size:21px;margin-bottom:18px}
    .compare-list{list-style:none}
    .compare-list li{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink-soft)}
    .compare-list li:last-child{border-bottom:0}
    .compare-list li:before{content:"✓";color:var(--blue);font-weight:900}
    .story-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:center}
    .story-copy p{color:var(--muted);font-size:15px;margin-top:18px}
    .quote-box{background:var(--ink);color:#fff;border-radius:var(--radius);padding:35px;position:relative;overflow:hidden}
    .quote-box:after{content:"“";position:absolute;right:22px;top:-24px;font-size:150px;color:rgba(255,255,255,.08);line-height:1}
    .quote-box p{font-size:20px;line-height:1.7;position:relative;z-index:1}
    .quote-box span{display:block;color:#9fc6dd;font-size:13px;margin-top:22px}
    .process{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
    .process-item{padding:28px 24px 15px 0;border-right:1px solid var(--line);margin-right:24px}
    .process-item:last-child{border-right:0;margin-right:0}
    .process-no{color:var(--gold);font-size:28px;font-weight:900}
    .process-item h3{font-size:18px;margin:8px 0}
    .process-item p{color:var(--muted);font-size:13px}
    .tier-section{background:var(--ink);color:#fff}
    .tier-section .section-kicker{color:#9fd7f4}
    .tier-section .section-intro{color:rgba(255,255,255,.65)}
    .tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .tier{padding:28px;border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);background:rgba(255,255,255,.06)}
    .tier.featured{background:#fff;color:var(--ink);transform:translateY(-10px);box-shadow:0 20px 55px rgba(0,0,0,.2)}
    .tier-label{font-size:12px;color:#b9dff2;font-weight:800;letter-spacing:.1em}
    .tier.featured .tier-label{color:var(--blue)}
    .tier h3{font-size:23px;margin:13px 0 6px}
    .tier p{font-size:13px;color:rgba(255,255,255,.66);min-height:51px}
    .tier.featured p{color:var(--muted)}
    .tier ul{list-style:none;border-top:1px solid rgba(255,255,255,.16);margin-top:20px;padding-top:12px}
    .tier.featured ul{border-color:var(--line)}
    .tier li{font-size:13px;color:rgba(255,255,255,.78);padding:7px 0}
    .tier.featured li{color:var(--ink-soft)}
    .tier li:before{content:"•";color:var(--gold);margin-right:9px}
    .evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .evidence{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:27px}
    .evidence b{display:block;color:var(--blue);font-size:28px;margin-bottom:7px}
    .evidence h3{font-size:17px;margin-bottom:7px}
    .evidence p{font-size:13px;color:var(--muted)}
    .faq-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:55px}
    .faq-intro p{color:var(--muted);font-size:15px;margin-top:17px}
    .faq-list{display:grid;gap:11px}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:15px;padding:17px 20px}
    .faq-item summary{cursor:pointer;font-weight:800;list-style:none;padding-right:20px;position:relative}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";position:absolute;right:0;color:var(--blue);font-size:21px;line-height:1}
    .faq-item[open] summary:after{content:"−"}
    .faq-item p{color:var(--muted);font-size:13px;padding-top:10px}
    .cta-band{background:var(--sky);border:1px solid #cde5f4;border-radius:30px;padding:48px;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta-band p{color:var(--muted);margin-top:8px;max-width:620px;font-size:15px}
    .btn-dark{background:var(--ink);color:#fff;box-shadow:0 10px 23px rgba(16,36,62,.15)}
    .btn-dark:hover{background:var(--blue);transform:translateY(-3px)}
    .site-footer{background:#0c1d31;color:#fff;padding:63px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .footer-brand{font-size:24px;font-weight:900}
    .footer-brand p{color:rgba(255,255,255,.56);font-size:13px;font-weight:400;line-height:1.9;max-width:280px;margin-top:12px}
    .footer-col h3{font-size:14px;margin-bottom:14px;color:#fff}
    .footer-col a{display:block;color:rgba(255,255,255,.58);font-size:13px;margin:8px 0}
    .footer-col a:hover{color:#fff;transform:translateX(3px)}
    .copyright{border-top:1px solid rgba(255,255,255,.13);margin-top:45px;padding-top:20px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:rgba(255,255,255,.45);font-size:12px}
    .copyright a:hover{color:#fff}
    .contact-form{display:grid;grid-template-columns:1fr 1fr;gap:13px;margin-top:25px}
    .contact-form input,.contact-form textarea{width:100%;border:1px solid var(--line);border-radius:13px;padding:13px 15px;outline:none;background:#fff;color:var(--ink)}
    .contact-form input:focus,.contact-form textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(23,105,170,.1)}
    .contact-form textarea{grid-column:1/-1;min-height:105px;resize:vertical}
    .contact-form .btn{justify-self:start}
    @media(max-width:1024px){
      .nav-side{gap:11px}.nav-link{font-size:12px}.hero-layout,.matrix-layout,.story-grid,.faq-grid{grid-template-columns:1fr;gap:35px}
      .hero{min-height:auto}.support-panel{max-width:590px}.metric-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 30px))}
      .nav-shell{grid-template-columns:1fr auto;min-height:70px}.nav-side{display:none}.brand{text-align:left;font-size:20px}.menu-btn{display:block}
      .mobile-nav{padding:8px 15px 17px;border-top:1px solid var(--line);background:var(--paper)}
      .mobile-nav.open{display:grid;grid-template-columns:1fr 1fr;gap:6px}
      .mobile-nav a{padding:10px 8px;color:var(--ink-soft);font-size:13px;border-radius:9px}.mobile-nav a:hover,.mobile-nav a.active{background:var(--sky);color:var(--blue)}
      .hero-inner{padding:75px 0 80px}.progress-wrap{align-items:flex-start}.section{padding:72px 0}.section-head{display:block;margin-bottom:28px}.section-intro{margin-top:12px}
      .tier-grid,.evidence-grid{grid-template-columns:1fr}.tier.featured{transform:none}.process{grid-template-columns:1fr 1fr;gap:15px;border-top:0}.process-item{border-right:0;border-top:1px solid var(--line);margin:0;padding:20px 10px 10px 0}
      .cta-band{display:block;padding:32px 25px}.cta-band .btn{margin-top:22px}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}.footer-brand{grid-column:1/-1}
    }
    @media(max-width:520px){
      h1{font-size:40px}.hero-copy{font-size:15px}.metric-grid{grid-template-columns:1fr 1fr;gap:10px}.metric{padding:20px 15px}.metric strong{font-size:27px}
      .support-panel{padding:20px}.progress-ring{width:112px;height:112px}.tier-preview{grid-template-columns:1fr}.matrix-image{height:280px}.service-item{grid-template-columns:40px 1fr}.service-item>b{display:none}
      .compare-grid{grid-template-columns:1fr}.contact-form{grid-template-columns:1fr}.contact-form textarea{grid-column:auto}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin:7px 0}
    }