/* roulang page: index */
:root{
      --blue:#1769d2;
      --blue-deep:#0b3d91;
      --cyan:#23a5c9;
      --ink:#15253d;
      --muted:#63738a;
      --line:#dce6f1;
      --soft:#f4f8fc;
      --pale:#eaf3ff;
      --white:#fff;
      --shadow:0 14px 38px rgba(38,77,125,.10);
      --shadow-sm:0 7px 20px rgba(38,77,125,.08);
      --radius:18px;
      --radius-sm:11px;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:#fbfdff;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.8;padding-bottom:88px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    .container{max-width:1240px;margin:0 auto;padding:0 26px}
    .topline{background:var(--white);border-bottom:1px solid var(--line);box-shadow:0 2px 15px rgba(38,77,125,.04)}
    .brand-row{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .brand{display:flex;align-items:center;gap:12px;font-size:22px;font-weight:800;letter-spacing:.02em;color:var(--blue-deep)}
    .brand-mark{width:40px;height:40px;border-radius:12px;background:var(--blue);position:relative;box-shadow:0 8px 16px rgba(23,105,210,.23)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:2px solid #fff;border-radius:5px}
    .brand-mark:before{width:18px;height:18px;left:8px;top:8px}
    .brand-mark:after{width:10px;height:10px;right:6px;bottom:6px;background:#73d6e8;border:0}
    .brand-note{font-size:12px;color:var(--muted);font-weight:500}
    .top-actions{display:flex;align-items:center;gap:12px}
    .status{display:flex;align-items:center;gap:7px;padding:7px 12px;border:1px solid #cfe6da;border-radius:30px;color:#28724b;background:#f3fbf6;font-size:13px}
    .status i{width:7px;height:7px;background:#32ae69;border-radius:50%;display:block}
    .nav-strip{padding:12px 0 15px;background:#f9fbfe}
    .icon-nav{display:grid;grid-template-columns:repeat(7,1fr);gap:10px}
    .nav-item{min-height:66px;border:1px solid transparent;border-radius:13px;display:flex;align-items:center;justify-content:center;gap:8px;flex-direction:column;color:#50627a;font-size:13px;position:relative}
    .nav-item .nav-icon{width:25px;height:25px;border:1.6px solid #91a7c2;border-radius:8px;display:grid;place-items:center;font-size:12px}
    .nav-item:hover,.nav-item:focus-visible{background:var(--white);border-color:#c8ddf7;color:var(--blue);outline:none;box-shadow:var(--shadow-sm)}
    .nav-item.active{background:#eaf3ff;border-color:#b8d5f8;color:var(--blue-deep);font-weight:700}
    .nav-item.active:after{content:"";height:3px;width:30px;background:var(--blue);border-radius:4px;position:absolute;bottom:3px}
    .hero{padding:50px 0 48px;background:linear-gradient(180deg,#f2f8ff,#fbfdff)}
    .hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:54px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-weight:800;letter-spacing:.1em;font-size:12px;text-transform:uppercase}
    .eyebrow:before,.section-kicker:before{content:"";width:26px;height:2px;background:var(--cyan)}
    h1,h2,h3{color:var(--ink);line-height:1.25;margin:0 0 18px;letter-spacing:-.025em}
    h1{font-size:clamp(36px,5vw,58px);font-weight:800;max-width:650px}
    h2{font-size:clamp(28px,3vw,38px)}
    h3{font-size:20px}
    .hero-copy{font-size:18px;color:#53677f;max-width:650px;margin:0 0 25px}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 22px;min-height:48px;font-weight:700;border:1px solid transparent;margin:0 8px 8px 0;transition:.25s ease}
    .button.primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(23,105,210,.2)}
    .button.primary:hover,.button.primary:focus-visible{background:var(--blue-deep);transform:translateY(-2px);outline:3px solid rgba(35,165,201,.2)}
    .button.secondary{background:#fff;border-color:#bcd0e8;color:var(--blue-deep)}
    .button.secondary:hover,.button.secondary:focus-visible{border-color:var(--blue);color:var(--blue);outline:3px solid rgba(23,105,210,.12)}
    .hero-points{display:flex;flex-wrap:wrap;gap:11px;margin-top:18px}
    .mini-point{font-size:13px;color:#53677f;padding:8px 12px;background:#fff;border:1px solid var(--line);border-radius:9px}
    .mini-point strong{color:var(--blue-deep);font-size:17px;margin-right:4px}
    .hero-stage{min-height:365px;border-radius:24px;background-image:linear-gradient(90deg,rgba(9,52,111,.78),rgba(20,120,180,.18)),url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;position:relative;overflow:hidden;box-shadow:var(--shadow)}
    .stage-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.1) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.1) 1px,transparent 1px);background-size:36px 36px;opacity:.4}
    .stage-panel{position:absolute;left:25px;right:25px;bottom:25px;background:rgba(255,255,255,.94);border-radius:15px;padding:20px;color:var(--ink);box-shadow:0 10px 25px rgba(5,32,72,.18)}
    .stage-panel small{color:var(--blue);font-weight:800;letter-spacing:.1em}
    .stage-panel h3{margin:5px 0 8px}
    .stage-line{height:6px;background:#dceaf8;border-radius:9px;overflow:hidden}.stage-line span{display:block;height:100%;width:76%;background:var(--blue);border-radius:9px}
    .stage-badge{position:absolute;right:24px;top:23px;background:#fff;padding:8px 12px;border-radius:9px;color:var(--blue-deep);font-weight:700;font-size:13px}
    section{padding:78px 0}
    .section-head{max-width:730px;margin-bottom:34px}
    .section-head p{color:var(--muted);margin:0;font-size:16px}
    .rail{display:grid;grid-template-columns:92px 1fr;gap:28px}
    .rail-number{color:#b9cce2;font-size:54px;font-weight:800;line-height:1;border-right:1px solid var(--line)}
    .benefit-list{display:grid;gap:14px}
    .benefit{display:grid;grid-template-columns:56px 1fr auto;gap:18px;align-items:center;padding:20px 23px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow-sm)}
    .benefit:nth-child(2){margin-left:34px;background:#f7fbff}.benefit:nth-child(3){margin-left:68px}
    .benefit-icon{width:43px;height:43px;border-radius:12px;background:var(--pale);color:var(--blue);display:grid;place-items:center;font-weight:800}
    .benefit h3{margin:0 0 4px}.benefit p{margin:0;color:var(--muted);font-size:14px}
    .arrow{color:var(--blue);font-size:24px}
    .scene{background:#eef6ff}
    .scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:center}
    .scene-image{border-radius:21px;overflow:hidden;box-shadow:var(--shadow);position:relative}
    .scene-image img{width:100%;height:360px;object-fit:cover}
    .image-caption{position:absolute;left:18px;bottom:17px;background:rgba(255,255,255,.92);padding:8px 13px;border-radius:9px;color:var(--blue-deep);font-size:13px;font-weight:700}
    .info-panel{background:#fff;border:1px solid var(--line);padding:32px;border-radius:20px;box-shadow:var(--shadow-sm)}
    .info-panel p{color:var(--muted)}
    .check-list{list-style:none;margin:22px 0;padding:0}.check-list li{padding:9px 0 9px 28px;border-bottom:1px dashed #d8e4f0;position:relative;color:#40546c}.check-list li:before{content:"✓";position:absolute;left:0;color:var(--blue);font-weight:800}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:30px}
    .step{padding:22px 24px;border-top:3px solid #b9d5f3;position:relative}.step:first-child{border-color:var(--blue)}
    .step-number{color:var(--blue);font-weight:800;font-size:13px}.step h3{margin:7px 0}.step p{color:var(--muted);font-size:14px;margin:0}
    .directory{background:#fff}
    .directory-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:28px}
    .topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .topic-card{display:flex;gap:17px;padding:22px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow-sm)}
    .topic-card img{width:92px;height:82px;object-fit:cover;border-radius:11px}.topic-card h3{font-size:18px;margin-bottom:6px}.topic-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}
    .side-note{padding:27px;border-radius:18px;background:var(--blue-deep);color:#fff;box-shadow:var(--shadow)}.side-note h3{color:#fff}.side-note p{color:#d7e8ff;font-size:14px}.side-note ul{padding-left:19px;color:#d7e8ff}
    .news-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:30px}
    .news-list{background:#fff;border:1px solid var(--line);border-radius:18px;padding:9px 25px;box-shadow:var(--shadow-sm)}
    .news-item{display:grid;grid-template-columns:84px 1fr;gap:17px;padding:21px 0;border-bottom:1px solid #e6edf5}.news-item:last-child{border:0}.news-date{color:var(--blue);font-size:13px;font-weight:800}.news-item h3{font-size:18px;margin:0 0 6px}.news-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .featured{background:#f0f7ff;border-radius:20px;padding:25px}.featured img{height:180px;width:100%;object-fit:cover;border-radius:13px;margin-bottom:19px}.featured p{font-size:15px;color:var(--muted)}
    .trust{background:#f8fbfe;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .trust-grid{display:grid;grid-template-columns:1.05fr 1.95fr;gap:48px;align-items:start}
    .stat-row{display:flex;gap:24px;margin-top:23px}.stat strong{display:block;color:var(--blue-deep);font-size:30px;line-height:1.2}.stat span{font-size:13px;color:var(--muted)}
    .quotes{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.quote{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;box-shadow:var(--shadow-sm)}.quote p{font-size:14px;color:#4e6178;margin:0 0 10px;line-height:1.75}.quote b{font-size:13px;color:var(--blue-deep)}
    .partners{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:28px}.partner{padding:17px;background:#fff;border:1px solid var(--line);border-radius:13px}.partner strong{display:block;color:var(--blue-deep);margin-bottom:3px}.partner span{color:var(--muted);font-size:13px}
    .faq-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:42px}.faq-intro p{color:var(--muted)}.accordion{margin:0;border:0;background:transparent}.accordion-item{margin-bottom:11px;border:1px solid var(--line)!important;border-radius:12px;overflow:hidden;background:#fff;box-shadow:var(--shadow-sm)}.accordion-title{border:0!important;color:var(--ink);font-weight:700;font-size:16px;padding:18px 45px 18px 20px}.accordion-title:hover,.accordion-title:focus{background:#f3f8ff;color:var(--blue);outline:none}.accordion-content{border:0!important;padding:0 20px 19px;color:var(--muted);font-size:14px;line-height:1.8}
    .conversion{background:linear-gradient(110deg,#e7f2ff,#f7fbff);border:1px solid #cfe1f5;border-radius:22px;padding:34px 40px;display:flex;align-items:center;justify-content:space-between;gap:25px}.conversion p{color:var(--muted);margin:0;max-width:720px}
    footer{background:#102d55;color:#d7e6f7;padding:54px 0 28px}.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:35px}.footer-brand{color:#fff;font-size:21px;font-weight:800}.footer-title{color:#fff;font-weight:700;margin-bottom:12px}.footer-links{list-style:none;margin:0;padding:0}.footer-links li{margin:6px 0;font-size:14px}.footer-links a:hover,.footer-links a:focus{color:#75d9ec;outline:none}.legal{border-top:1px solid rgba(255,255,255,.15);margin-top:36px;padding-top:20px;font-size:12px;color:#abc1db;line-height:2}.legal a{color:#c5dcf4;text-decoration:underline}
    .fixed-cta{position:fixed;z-index:20;bottom:0;left:0;right:0;background:rgba(13,58,119,.97);color:#fff;padding:13px 25px;box-shadow:0 -8px 25px rgba(21,62,108,.18)}.fixed-inner{max-width:1240px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:20px}.fixed-cta p{margin:0;font-size:14px}.fixed-cta .button{margin:0;min-height:42px;background:#6fe0eb;color:#07386e}
    @media(max-width:900px){.icon-nav{grid-template-columns:repeat(4,1fr)}.hero-grid,.scene-grid,.directory-layout,.news-wrap,.trust-grid,.faq-grid{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:600px){body{font-size:15px;padding-bottom:132px}.container{padding:0 18px}.brand-row{min-height:68px}.brand-note,.status{display:none}.brand{font-size:19px}.nav-strip{overflow:hidden}.icon-nav{display:flex;overflow-x:auto;gap:7px;padding-bottom:3px}.nav-item{min-width:92px;min-height:64px}.hero{padding:35px 0}.hero-copy{font-size:16px}.hero-stage{min-height:290px}.stage-panel{left:15px;right:15px;bottom:15px}.rail{grid-template-columns:1fr}.rail-number{border:0;font-size:40px}.benefit,.benefit:nth-child(2),.benefit:nth-child(3){margin-left:0;grid-template-columns:45px 1fr auto;padding:17px 14px}.benefit p{font-size:13px}.topic-grid,.quotes,.partners{grid-template-columns:1fr}.topic-card img{width:80px;height:75px}.news-item{grid-template-columns:67px 1fr;gap:10px}.steps{grid-template-columns:1fr}.conversion{padding:25px 20px;display:block}.conversion .button{width:100%;margin-top:17px}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.fixed-cta{padding:11px 15px}.fixed-inner{display:block}.fixed-cta p{font-size:12px;margin-bottom:7px}.fixed-cta .button{width:100%;min-height:39px}.stat-row{gap:15px}.stat strong{font-size:25px}}

/* roulang page: category1 */
:root{--blue:#1769d2;--blue-deep:#0b3d91;--cyan:#23a5c9;--ink:#15253d;--muted:#63738a;--line:#dce6f1;--soft:#f4f8fc;--pale:#eaf3ff;--white:#fff;--shadow:0 14px 38px rgba(38,77,125,.10);--shadow-sm:0 7px 20px rgba(38,77,125,.08);--radius:18px;--radius-sm:11px}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fbfdff;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.8;padding-bottom:94px}a{color:inherit;text-decoration:none;transition:.25s ease}img{max-width:100%;display:block}button,input,textarea,select{font:inherit}.container{max-width:1240px;margin:0 auto;padding:0 26px}
    h1,h2,h3,h4{color:var(--ink);line-height:1.3;margin:0 0 15px;font-weight:750}h1{font-size:clamp(34px,4.5vw,56px);letter-spacing:-.04em}h2{font-size:clamp(28px,3vw,38px)}h3{font-size:20px}p{margin:0 0 15px}.topline{background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:4}.brand-row{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:25px}.brand{display:flex;align-items:center;gap:12px;font-size:22px;font-weight:800;letter-spacing:.02em;color:var(--blue-deep)}.brand-mark{width:40px;height:40px;border-radius:12px;background:var(--blue);position:relative;box-shadow:0 8px 16px rgba(23,105,210,.23)}.brand-mark:before,.brand-mark:after{content:"";position:absolute;border:2px solid #fff;border-radius:5px}.brand-mark:before{width:18px;height:18px;left:8px;top:8px}.brand-mark:after{width:10px;height:10px;right:6px;bottom:6px;background:#73d6e8;border:0}.brand-note{font-size:12px;color:var(--muted);font-weight:500}.top-actions{display:flex;align-items:center;gap:16px}.status{font-size:12px;color:var(--muted);white-space:nowrap}.status i{display:inline-block;width:7px;height:7px;background:#2bb673;border-radius:50%;margin-right:7px}.nav-strip{padding:12px 0 15px;background:#f9fbfe}.icon-nav{display:grid;grid-template-columns:repeat(7,1fr);gap:10px}.nav-item{min-height:66px;border:1px solid transparent;border-radius:13px;display:flex;align-items:center;justify-content:center;gap:8px;flex-direction:column;color:#50627a;font-size:13px;position:relative}.nav-icon{width:25px;height:25px;border:1.6px solid #91a7c2;border-radius:8px;display:grid;place-items:center;font-size:12px}.nav-item:hover,.nav-item:focus-visible{background:#fff;border-color:#c8ddf7;color:var(--blue);outline:none;box-shadow:var(--shadow-sm)}.nav-item.active{background:#eaf3ff;border-color:#b8d5f8;color:var(--blue-deep);font-weight:700}.nav-item.active:after{content:"";height:3px;width:30px;background:var(--blue);border-radius:4px;position:absolute;bottom:3px}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 22px;min-height:48px;font-weight:700;border:1px solid transparent;margin:0 8px 8px 0;transition:.25s ease}.button.primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(23,105,210,.2)}.button.primary:hover,.button.primary:focus-visible{background:var(--blue-deep);transform:translateY(-2px);outline:3px solid rgba(35,165,201,.2)}.button.secondary{background:#fff;border-color:#bcd0e8;color:var(--blue-deep)}.button.secondary:hover,.button.secondary:focus-visible{border-color:var(--blue);color:var(--blue);outline:3px solid rgba(23,105,210,.12)}
    .hero{padding:45px 0 58px;background:linear-gradient(180deg,#f2f8ff,#fbfdff)}.crumbs{font-size:13px;color:var(--muted);margin-bottom:28px}.crumbs a{color:var(--blue)}.bento{display:grid;grid-template-columns:1.35fr .65fr;grid-template-rows:auto auto;gap:18px}.hero-main{grid-row:span 2;background:#fff;border:1px solid var(--line);border-radius:24px;padding:44px;box-shadow:var(--shadow);position:relative;overflow:hidden}.hero-main:after{content:"01";position:absolute;right:24px;top:18px;color:#e1edf9;font-size:76px;font-weight:800}.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-weight:800;letter-spacing:.1em;font-size:12px}.eyebrow:before,.section-kicker:before{content:"";width:26px;height:2px;background:var(--cyan)}.hero-copy{font-size:18px;color:#53677f;max-width:660px;margin:0 0 25px}.hero-side{border-radius:18px;border:1px solid var(--line);background:#fff;padding:25px;box-shadow:var(--shadow-sm);min-height:145px}.hero-side.blue{background:var(--blue-deep);color:#fff;border-color:var(--blue-deep)}.hero-side.blue h3,.hero-side.blue p{color:#fff}.hero-side p{font-size:14px;color:var(--muted);margin-bottom:0}.mini-label{font-size:12px;color:var(--cyan);font-weight:800;letter-spacing:.08em}.hero-art{margin-top:28px;border-radius:16px;overflow:hidden;height:190px}.hero-art img{height:100%;width:100%;object-fit:cover}.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin:18px 0 27px}.tag{padding:6px 11px;background:var(--pale);border:1px solid #cfe2f8;border-radius:30px;color:var(--blue-deep);font-size:13px}
    section{padding:76px 0}.section-head{max-width:760px;margin-bottom:33px}.section-head p{color:var(--muted);font-size:16px}.index-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:38px;align-items:start}.index-list{display:grid;gap:13px}.index-item{display:grid;grid-template-columns:55px 1fr 30px;gap:16px;align-items:center;padding:21px 22px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow-sm)}.index-item:hover{border-color:#a8c9ef;transform:translateX(4px);box-shadow:var(--shadow)}.index-no{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.08em}.index-item h3{margin:0 0 4px;font-size:19px}.index-item p{font-size:14px;color:var(--muted);margin:0;line-height:1.65}.arrow{color:var(--blue);font-size:24px}.focus-panel{background:#0b3d91;color:#fff;border-radius:22px;padding:31px;position:sticky;top:20px;box-shadow:var(--shadow)}.focus-panel h2,.focus-panel h3{color:#fff}.focus-panel p{color:#d6e5f7;font-size:15px}.panel-line{height:6px;background:#2b5aa0;border-radius:9px;margin:22px 0}.panel-line span{display:block;height:100%;width:82%;background:#6dd5e7;border-radius:9px}.panel-list{list-style:none;padding:0;margin:20px 0}.panel-list li{padding:11px 0;border-bottom:1px solid rgba(255,255,255,.16);font-size:14px;color:#e6f1fc}.panel-list li:last-child{border:0}.panel-list b{color:#77dceb;margin-right:8px}
    .visual-band{background:var(--soft)}.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:center}.scene-image{position:relative}.scene-image img{width:100%;height:350px;object-fit:cover;border-radius:20px;box-shadow:var(--shadow)}.image-label{position:absolute;left:18px;bottom:18px;background:#fff;border-radius:10px;padding:9px 13px;color:var(--blue-deep);font-size:13px;font-weight:700}.check-list{list-style:none;margin:22px 0;padding:0}.check-list li{padding:9px 0 9px 28px;border-bottom:1px dashed #d8e4f0;position:relative;color:#40546c}.check-list li:before{content:"✓";position:absolute;left:0;color:var(--blue);font-weight:800}
    .trust-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px}.stat-box{background:#eaf3ff;border:1px solid #c9def6;border-radius:18px;padding:26px}.stat-box strong{display:block;font-size:42px;color:var(--blue-deep);line-height:1.1}.stat-box span{font-size:14px;color:var(--muted)}.feedback{display:grid;gap:12px}.feedback-item{background:#fff;border:1px solid var(--line);border-left:4px solid var(--cyan);border-radius:12px;padding:17px 20px}.feedback-item p{font-size:14px;color:#50627a;margin:0}.feedback-item b{font-size:13px;color:var(--blue-deep)}
    .faq-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:42px}.faq-intro p{color:var(--muted)}.accordion{margin:0;background:transparent}.accordion-item{margin-bottom:11px;border:1px solid var(--line)!important;border-radius:12px;overflow:hidden;background:#fff}.accordion-title{font-size:16px;font-weight:700;color:var(--ink);padding:18px 22px}.accordion-title:hover,.accordion-title:focus{background:var(--pale);color:var(--blue-deep)}.accordion-content{border-top:1px solid var(--line);color:var(--muted);font-size:14px;line-height:1.8;padding:18px 22px}.cta{padding:48px 0}.cta-box{background:linear-gradient(105deg,#eaf3ff,#f7fbff);border:1px solid #c9def6;border-radius:22px;padding:34px 40px;display:flex;align-items:center;justify-content:space-between;gap:25px}.cta-box p{color:var(--muted);margin:0}
    footer{background:#102a4a;color:#fff;padding:55px 0 35px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px}.footer-brand{font-size:22px;font-weight:800;color:#fff}.footer-title{font-weight:700;margin-bottom:14px;color:#fff}.footer-links{list-style:none;margin:0;padding:0}.footer-links li{margin:7px 0}.footer-links a{font-size:14px;color:#b8cbe1}.footer-links a:hover,.legal a:hover{color:#76d9e8}.legal{border-top:1px solid rgba(255,255,255,.15);margin-top:35px;padding-top:23px;font-size:12px;line-height:2;color:#b8cbe1}.fixed-cta{position:fixed;z-index:8;bottom:0;left:0;right:0;background:#fff;border-top:1px solid #c9def6;box-shadow:0 -7px 25px rgba(27,75,130,.12)}.fixed-inner{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:20px}.fixed-inner strong{color:var(--blue-deep)}.fixed-inner small{color:var(--muted)}
    @media(max-width:900px){.brand-note{display:none}.hero-grid,.index-layout,.scene-grid,.trust-layout,.faq-grid{grid-template-columns:1fr}.bento{grid-template-columns:1fr}.hero-main{grid-row:auto}.focus-panel{position:static}.footer-grid{grid-template-columns:repeat(2,1fr)}.icon-nav{grid-template-columns:repeat(7,minmax(92px,1fr));overflow-x:auto}.nav-strip{overflow:hidden}.nav-item{min-width:92px}.scene-image img{height:300px}}
    @media(max-width:560px){body{padding-bottom:145px}.container{padding:0 18px}.brand-row{min-height:68px}.top-actions .status{display:none}.top-actions .button{padding:9px 13px;min-height:40px;font-size:13px}.hero{padding:30px 0 42px}.hero-main{padding:28px 23px}.hero-art{height:155px}.hero-copy{font-size:16px}.button{width:100%;margin-right:0}.hero-side{min-height:0}.index-item{grid-template-columns:38px 1fr 22px;padding:17px 15px;gap:10px}.index-item h3{font-size:17px}.section-head{margin-bottom:24px}section{padding:52px 0}.scene-image img{height:235px}.cta-box{padding:27px 22px;display:block}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.legal{font-size:11px}.fixed-inner{min-height:125px;display:block;padding-top:14px}.fixed-inner .button{margin-top:9px}.fixed-inner small{display:block}}

/* roulang page: category2 */
:root{
      --blue:#1769d2;
      --blue-deep:#0b3d91;
      --cyan:#23a5c9;
      --ink:#15253d;
      --muted:#63738a;
      --line:#dce6f1;
      --soft:#f4f8fc;
      --pale:#eaf3ff;
      --white:#fff;
      --shadow:0 14px 38px rgba(38,77,125,.10);
      --shadow-sm:0 7px 20px rgba(38,77,125,.08);
      --radius:18px;
      --radius-sm:11px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:#fbfdff;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.8;padding-bottom:94px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    .container{max-width:1240px;margin:0 auto;padding:0 26px}
    .topline{background:#fff;border-bottom:1px solid var(--line);box-shadow:0 4px 18px rgba(37,79,125,.04);position:relative;z-index:5}
    .brand-row{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .brand{display:flex;align-items:center;gap:12px;font-size:22px;font-weight:800;letter-spacing:.02em;color:var(--blue-deep);white-space:nowrap}
    .brand-mark{width:40px;height:40px;border-radius:12px;background:var(--blue);position:relative;box-shadow:0 8px 16px rgba(23,105,210,.23)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:2px solid #fff;border-radius:5px}
    .brand-mark:before{width:18px;height:18px;left:8px;top:8px}
    .brand-mark:after{width:10px;height:10px;right:6px;bottom:6px;background:#73d6e8;border:0}
    .brand-note{font-size:12px;color:var(--muted);font-weight:500}
    .top-actions{display:flex;align-items:center;gap:16px}
    .status{font-size:12px;color:#55718e;white-space:nowrap}
    .status i{display:inline-block;width:8px;height:8px;border-radius:50%;background:#36bd89;margin-right:6px;box-shadow:0 0 0 4px #e2f7ed}
    .nav-strip{padding:12px 0 15px;background:#f9fbfe}
    .icon-nav{display:grid;grid-template-columns:repeat(7,1fr);gap:10px}
    .nav-item{min-height:66px;border:1px solid transparent;border-radius:13px;display:flex;align-items:center;justify-content:center;gap:8px;flex-direction:column;color:#50627a;font-size:13px;position:relative}
    .nav-item .nav-icon{width:25px;height:25px;border:1.6px solid #91a7c2;border-radius:8px;display:grid;place-items:center;font-size:12px}
    .nav-item:hover,.nav-item:focus-visible{background:#fff;border-color:#c8ddf7;color:var(--blue);outline:none;box-shadow:var(--shadow-sm)}
    .nav-item.active{background:#eaf3ff;border-color:#b8d5f8;color:var(--blue-deep);font-weight:700}
    .nav-item.active:after{content:"";height:3px;width:30px;background:var(--blue);border-radius:4px;position:absolute;bottom:3px}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 22px;min-height:48px;font-weight:700;border:1px solid transparent;margin:0 8px 8px 0;transition:.25s ease}
    .button.primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(23,105,210,.2)}
    .button.primary:hover,.button.primary:focus-visible{background:var(--blue-deep);transform:translateY(-2px);outline:3px solid rgba(35,165,201,.2)}
    .button.secondary{background:#fff;border-color:#bcd0e8;color:var(--blue-deep)}
    .button.secondary:hover,.button.secondary:focus-visible{border-color:var(--blue);color:var(--blue);outline:3px solid rgba(23,105,210,.12)}
    .page-hero{padding:58px 0 66px;background:#f1f7ff url('/assets/images/backpic/back-2.webp') center/cover no-repeat;position:relative;isolation:isolate}
    .page-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(241,247,255,.98) 8%,rgba(241,247,255,.85) 53%,rgba(241,247,255,.34));z-index:-1}
    .hero-inner{display:grid;grid-template-columns:1fr 430px;gap:50px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-weight:800;letter-spacing:.1em;font-size:12px}
    .eyebrow:before,.section-kicker:before{content:"";width:26px;height:2px;background:var(--cyan)}
    h1{font-size:clamp(34px,4.5vw,54px);line-height:1.2;letter-spacing:-.04em;margin:14px 0 18px;font-weight:800;color:var(--ink)}
    h2{font-size:clamp(27px,3vw,36px);line-height:1.3;margin:8px 0 12px;letter-spacing:-.025em}
    h3{font-size:20px;line-height:1.4;margin:0 0 8px}
    .hero-copy{font-size:17px;color:#53677f;max-width:680px;margin:0 0 25px}
    .hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin:22px 0 8px}
    .tag{display:inline-flex;align-items:center;border:1px solid #c6dcf4;background:rgba(255,255,255,.82);border-radius:20px;padding:4px 11px;font-size:12px;color:var(--blue-deep);font-weight:700}
    .hero-card{background:rgba(255,255,255,.94);border:1px solid #d5e5f5;border-radius:20px;padding:25px;box-shadow:var(--shadow)}
    .hero-card-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
    .hero-card small,.micro{font-size:11px;letter-spacing:.08em;color:var(--blue);font-weight:800}
    .signal{width:10px;height:10px;background:#3ac28a;border-radius:50%;box-shadow:0 0 0 5px #e3f8ee}
    .profile-row{display:flex;gap:15px;align-items:center;padding:16px 0;border-top:1px solid #e5edf6}
    .profile-icon{width:46px;height:46px;border-radius:14px;background:var(--pale);color:var(--blue);display:grid;place-items:center;font-size:22px;font-weight:800}
    .profile-row strong{display:block;color:var(--ink)}
    .profile-row span{font-size:13px;color:var(--muted)}
    section{padding:76px 0}
    .section-head{max-width:750px;margin-bottom:32px}
    .section-head p{color:var(--muted);margin:0;font-size:16px}
    .index-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
    .index-bar a{padding:9px 15px;border:1px solid var(--line);border-radius:10px;background:#fff;color:#53677f;font-size:14px}
    .index-bar a:hover,.index-bar a.active{color:var(--blue-deep);border-color:#a9ccef;background:var(--pale)}
    .directory{display:grid;grid-template-columns:1.32fr .82fr .82fr;grid-template-rows:auto auto;gap:18px}
    .dir-card{background:#fff;border:1px solid var(--line);border-radius:17px;overflow:hidden;box-shadow:var(--shadow-sm);transition:.25s ease}
    .dir-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .dir-card.large{grid-row:span 2}
    .dir-card.wide{grid-column:2 / 4;display:grid;grid-template-columns:190px 1fr;align-items:center}
    .dir-image{height:172px;overflow:hidden;background:#dfeefa}
    .large .dir-image{height:300px}
    .wide .dir-image{height:100%}
    .dir-image img{width:100%;height:100%;object-fit:cover}
    .dir-content{padding:20px 21px 22px}
    .dir-card h3{margin-top:10px}
    .dir-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.72}
    .dir-meta{display:flex;justify-content:space-between;align-items:center;margin-top:17px;color:var(--blue);font-size:13px;font-weight:700}
    .arrow{font-size:22px;line-height:1}
    .brand-section{background:#f5f9fd}
    .brand-layout{display:grid;grid-template-columns:.92fr 1.08fr;gap:52px;align-items:center}
    .brand-photo{position:relative}
    .brand-photo img{width:100%;height:370px;object-fit:cover;border-radius:20px;box-shadow:var(--shadow)}
    .photo-note{position:absolute;right:-16px;bottom:22px;background:#fff;border:1px solid var(--line);padding:15px 18px;border-radius:13px;box-shadow:var(--shadow-sm);font-size:13px;color:var(--blue-deep)}
    .brand-text p{color:#53677f;margin:0 0 16px}
    .fact-list{list-style:none;margin:22px 0 0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .fact-list li{background:#fff;border:1px solid var(--line);border-radius:12px;padding:13px 15px;font-size:14px;color:#40546c}
    .fact-list b{display:block;color:var(--blue-deep);font-size:16px;margin-bottom:3px}
    .panel-section{padding-top:30px}
    .panel-layout{display:grid;grid-template-columns:1fr 1.35fr;gap:22px}
    .info-panel{background:var(--blue-deep);border-radius:18px;color:#fff;padding:29px;position:relative;overflow:hidden}
    .info-panel:after{content:"02";position:absolute;right:22px;bottom:-19px;font-size:100px;color:rgba(255,255,255,.08);font-weight:800}
    .info-panel p{color:#d8e8fb;font-size:14px}
    .info-panel .tag{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.25);color:#fff;margin:4px 5px 0 0}
    .capability-list{display:grid;grid-template-columns:1fr 1fr;gap:13px}
    .capability{background:#fff;border:1px solid var(--line);border-left:4px solid var(--cyan);border-radius:12px;padding:18px 19px;box-shadow:var(--shadow-sm)}
    .capability h3{font-size:17px;margin-bottom:4px}
    .capability p{font-size:13px;color:var(--muted);margin:0;line-height:1.65}
    .faq-section{background:#f5f9fd}
    .faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:48px}
    .faq-intro p{color:var(--muted)}
    .accordion{background:transparent;margin:0}
    .accordion-item{margin-bottom:11px;border:1px solid var(--line)!important;border-radius:12px;overflow:hidden;background:#fff}
    .accordion-title{border:0!important;background:#fff;color:var(--ink);font-weight:700;font-size:16px;padding:18px 48px 18px 20px}
    .accordion-title:hover,.accordion-title:focus{background:var(--pale);color:var(--blue-deep)}
    .accordion-content{border:0;background:#fafdff;color:var(--muted);font-size:14px;padding:0 20px 18px;line-height:1.8}
    .cta-section{padding:56px 0}
    .cta-box{display:flex;justify-content:space-between;align-items:center;gap:30px;background:linear-gradient(100deg,#eaf4ff,#f8fcff);border:1px solid #cfe2f6;border-radius:20px;padding:30px 34px}
    .cta-box p{margin:5px 0 0;color:var(--muted)}
    footer{background:#0d274b;color:#fff;padding:57px 0 112px}
    .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:30px}
    .footer-brand{font-size:23px;font-weight:800;color:#fff}
    .footer-title{font-weight:700;color:#fff;margin-bottom:12px}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin:7px 0}
    .footer-links a{font-size:14px;color:#b8cbe1}
    .footer-links a:hover,.legal a:hover{color:#75d9ea}
    .legal{border-top:1px solid rgba(255,255,255,.16);margin-top:36px;padding-top:20px;font-size:12px;line-height:2;color:#a9bfd7}
    .legal a{color:#c5d8ed}
    .fixed-cta{position:fixed;z-index:20;left:0;right:0;bottom:0;background:#fff;border-top:1px solid #cbdced;box-shadow:0 -8px 26px rgba(28,70,119,.12);padding:13px 0}
    .fixed-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
    .fixed-inner strong{font-size:15px;color:var(--blue-deep)}
    .fixed-inner span{font-size:13px;color:var(--muted);margin-left:12px}
    .fixed-cta .button{margin:0}
    @media(max-width:1023px){
      .brand-note{display:none}
      .hero-inner,.brand-layout,.faq-layout{grid-template-columns:1fr 1fr;gap:30px}
      .directory{grid-template-columns:1fr 1fr}
      .dir-card.large{grid-row:auto;grid-column:span 2}
      .dir-card.large .dir-image{height:240px}
      .dir-card.wide{grid-column:span 2}
      .icon-nav{gap:5px}
    }
    @media(max-width:767px){
      body{font-size:15px;padding-bottom:145px}
      .container{padding:0 18px}
      .brand-row{min-height:68px}
      .brand{font-size:19px}
      .top-actions .status{display:none}
      .top-actions .button{padding:9px 13px;min-height:42px;font-size:13px}
      .nav-strip{overflow-x:auto}
      .icon-nav{display:flex;min-width:700px;gap:6px}
      .nav-item{min-width:88px;min-height:62px}
      .page-hero{padding:42px 0 45px}
      .hero-inner,.brand-layout,.panel-layout,.faq-layout{grid-template-columns:1fr}
      h1{font-size:36px}
      .hero-card{margin-top:4px}
      section{padding:57px 0}
      .directory{display:flex;flex-direction:column}
      .dir-card.large .dir-image,.dir-image{height:210px}
      .dir-card.wide{display:block}
      .dir-card.wide .dir-image{height:190px}
      .brand-photo img{height:270px}
      .photo-note{right:10px}
      .fact-list,.capability-list{grid-template-columns:1fr}
      .cta-box{display:block;padding:25px 22px}
      .cta-box .button{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px 18px}
      .footer-grid>div:first-child{grid-column:span 2}
      .fixed-inner{display:block}
      .fixed-inner span{display:block;margin:2px 0 9px}
      .fixed-cta .button{width:100%;margin:0}
    }
    @media(max-width:520px){
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
      .hero-copy{font-size:16px}
      .index-bar{display:grid;grid-template-columns:1fr 1fr}
      .index-bar a{text-align:center}
    }

/* roulang page: category3 */
:root{
      --blue:#1769d2;
      --blue-deep:#0b3d91;
      --cyan:#23a5c9;
      --ink:#15253d;
      --muted:#63738a;
      --line:#dce6f1;
      --soft:#f4f8fc;
      --pale:#eaf3ff;
      --white:#fff;
      --shadow:0 14px 38px rgba(38,77,125,.10);
      --shadow-sm:0 7px 20px rgba(38,77,125,.08);
      --radius:18px;
      --radius-sm:11px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:#fbfdff;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.8;padding-bottom:92px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    h1,h2,h3,h4{line-height:1.28;margin-top:0}
    h1{font-size:clamp(34px,4.6vw,56px);font-weight:800;letter-spacing:-.035em;margin:15px 0 18px}
    h2{font-size:clamp(28px,3.3vw,38px);font-weight:800;letter-spacing:-.025em;margin-bottom:14px}
    h3{font-size:20px;font-weight:750;margin-bottom:8px}
    .container{max-width:1240px;margin:0 auto;padding:0 26px}
    .topline{background:#fff;border-bottom:1px solid var(--line)}
    .brand-row{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .brand{display:flex;align-items:center;gap:12px;font-size:22px;font-weight:800;letter-spacing:.02em;color:var(--blue-deep)}
    .brand-mark{width:40px;height:40px;border-radius:12px;background:var(--blue);position:relative;box-shadow:0 8px 16px rgba(23,105,210,.23)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:2px solid #fff;border-radius:5px}
    .brand-mark:before{width:18px;height:18px;left:8px;top:8px}
    .brand-mark:after{width:10px;height:10px;right:6px;bottom:6px;background:#73d6e8;border:0}
    .brand-note{font-size:12px;color:var(--muted);font-weight:500}
    .top-actions{display:flex;align-items:center;gap:15px}
    .status{font-size:13px;color:#4e6885;white-space:nowrap}
    .status i{display:inline-block;width:8px;height:8px;background:#28b98a;border-radius:50%;margin-right:7px}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 22px;min-height:48px;font-weight:700;border:1px solid transparent;margin:0 8px 8px 0;transition:.25s ease;cursor:pointer}
    .button.primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(23,105,210,.2)}
    .button.primary:hover,.button.primary:focus-visible{background:var(--blue-deep);transform:translateY(-2px);outline:3px solid rgba(35,165,201,.2)}
    .button.secondary{background:#fff;border-color:#bcd0e8;color:var(--blue-deep)}
    .button.secondary:hover,.button.secondary:focus-visible{border-color:var(--blue);color:var(--blue);outline:3px solid rgba(23,105,210,.12)}
    .nav-strip{padding:12px 0 15px;background:#f9fbfe}
    .icon-nav{display:grid;grid-template-columns:repeat(7,1fr);gap:10px}
    .nav-item{min-height:66px;border:1px solid transparent;border-radius:13px;display:flex;align-items:center;justify-content:center;gap:8px;flex-direction:column;color:#50627a;font-size:13px;position:relative}
    .nav-item .nav-icon{width:25px;height:25px;border:1.6px solid #91a7c2;border-radius:8px;display:grid;place-items:center;font-size:12px}
    .nav-item:hover,.nav-item:focus-visible{background:#fff;border-color:#c8ddf7;color:var(--blue);outline:none;box-shadow:var(--shadow-sm)}
    .nav-item.active{background:#eaf3ff;border-color:#b8d5f8;color:var(--blue-deep);font-weight:700}
    .nav-item.active:after{content:"";height:3px;width:30px;background:var(--blue);border-radius:4px;position:absolute;bottom:3px}
    .hero{padding:68px 0 62px;background:linear-gradient(180deg,#f2f8ff,#fbfdff)}
    .hero-center{text-align:center;max-width:850px;margin:0 auto}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-weight:800;letter-spacing:.1em;font-size:12px}
    .eyebrow:before,.section-kicker:before{content:"";width:26px;height:2px;background:var(--cyan)}
    .hero-copy{font-size:18px;color:#53677f;max-width:720px;margin:0 auto 27px}
    .hero-actions{margin-bottom:30px}
    .hero-console{max-width:980px;margin:0 auto;display:grid;grid-template-columns:170px 1fr 240px;gap:22px;align-items:center;text-align:left;background:#fff;border:1px solid var(--line);border-radius:22px;padding:23px;box-shadow:var(--shadow)}
    .progress-ring{width:120px;height:120px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--blue) 0 76%,#dceaf8 76% 100%);position:relative;margin:auto}
    .progress-ring:after{content:"";position:absolute;inset:10px;background:#fff;border-radius:50%}
    .progress-ring strong{position:relative;z-index:1;font-size:25px;color:var(--blue-deep)}
    .console-copy small{color:var(--blue);font-weight:800;letter-spacing:.08em}
    .console-copy h3{margin:6px 0}
    .console-copy p{color:var(--muted);font-size:14px;margin:0}
    .signal-list{border-left:1px solid var(--line);padding-left:20px}
    .signal-list div{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px dashed var(--line);font-size:13px}
    .signal-list span:last-child{color:var(--blue);font-weight:700}
    section{padding:76px 0}
    .section-head{max-width:720px;margin-bottom:35px}
    .section-head p{color:var(--muted);margin:0;font-size:16px}
    .process{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .process:before{content:"";position:absolute;top:38px;left:9%;right:9%;height:2px;background:#c9def4;z-index:0}
    .step{position:relative;z-index:1;background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px 21px 22px;box-shadow:var(--shadow-sm);min-height:225px}
    .step:nth-child(2){transform:translateY(18px)}
    .step:nth-child(3){background:#f0f7ff}
    .step:nth-child(4){transform:translateY(8px)}
    .step-no{width:44px;height:44px;border-radius:13px;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:800;margin-bottom:19px;box-shadow:0 7px 14px rgba(23,105,210,.22)}
    .step:nth-child(3) .step-no{background:var(--cyan)}
    .step p{color:var(--muted);font-size:14px;margin:0}
    .step-tag{display:inline-block;font-size:12px;color:var(--blue);font-weight:800;margin-bottom:7px}
    .showcase{background:#f4f8fc}
    .showcase-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:46px;align-items:center}
    .showcase-image{position:relative}
    .showcase-image img{width:100%;height:390px;object-fit:cover;border-radius:20px;box-shadow:var(--shadow)}
    .image-label{position:absolute;left:20px;bottom:20px;background:#fff;padding:12px 16px;border-radius:11px;color:var(--blue-deep);font-size:13px;font-weight:700;box-shadow:var(--shadow-sm)}
    .info-panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:31px;box-shadow:var(--shadow-sm)}
    .info-panel p{color:var(--muted)}
    .bullet-row{display:grid;grid-template-columns:28px 1fr;gap:10px;margin:18px 0}
    .bullet-row b{color:var(--blue);font-size:18px}
    .bullet-row p{margin:0;font-size:14px}
    .route-section{padding-top:65px}
    .route-board{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}
    .route-main{background:var(--blue-deep);color:#fff;border-radius:20px;padding:30px;position:relative;overflow:hidden}
    .route-main:after{content:"";position:absolute;width:220px;height:220px;border:1px solid rgba(255,255,255,.18);border-radius:50%;right:-70px;top:-70px}
    .route-main h3{font-size:25px}
    .route-main p{color:#d9e8fa;max-width:600px}
    .route-items{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:25px}
    .route-item{border:1px solid rgba(255,255,255,.22);border-radius:12px;padding:15px;background:rgba(255,255,255,.08)}
    .route-item strong{display:block;font-size:14px;margin-bottom:4px}
    .route-item span{font-size:12px;color:#c9def4}
    .route-side{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow-sm)}
    .route-side ul{list-style:none;padding:0;margin:15px 0 0}
    .route-side li{padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px;color:#50627a}
    .route-side li:before{content:"→";color:var(--blue);font-weight:800;margin-right:8px}
    .trust{background:#fff}
    .trust-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:45px;align-items:start}
    .stat-card{background:#eaf3ff;border-radius:20px;padding:28px}
    .stat-card strong{display:block;font-size:49px;line-height:1;color:var(--blue-deep)}
    .stat-card p{color:#53677f;margin:14px 0 0;font-size:14px}
    .feedback-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .feedback{padding:20px;border:1px solid var(--line);border-radius:15px;background:#fff}
    .feedback p{font-size:14px;color:#53677f;margin:0}
    .feedback strong{display:block;font-size:13px;margin-bottom:8px;color:var(--ink)}
    .faq-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:42px}
    .faq-intro p{color:var(--muted)}
    .accordion-item{margin-bottom:11px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;box-shadow:0 3px 10px rgba(38,77,125,.03)}
    .accordion-button{width:100%;border:0;background:#fff;padding:18px 20px;text-align:left;color:var(--ink);font-weight:700;display:flex;justify-content:space-between;cursor:pointer}
    .accordion-button:after{content:"+";font-size:22px;color:var(--blue);line-height:1;transition:.25s}
    .accordion-button[aria-expanded="true"]{background:#f0f7ff;color:var(--blue-deep)}
    .accordion-button[aria-expanded="true"]:after{content:"−";transform:rotate(180deg)}
    .accordion-panel{display:none;padding:0 20px 18px;color:var(--muted);font-size:14px;background:#f0f7ff}
    .accordion-panel.open{display:block}
    .cta{padding:52px 0 80px}
    .cta-box{background:linear-gradient(110deg,#eaf3ff,#f7fbff);border:1px solid #cbdff5;border-radius:22px;padding:34px 38px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta-box p{color:var(--muted);margin:6px 0 0}
    footer{background:#102844;color:#fff;padding:52px 0 30px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
    .footer-brand{font-size:22px;font-weight:800}
    .footer-title{font-weight:800;margin-bottom:14px;color:#fff}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin:7px 0}
    .footer-links a{font-size:14px;color:#b8cbe1}
    .footer-links a:hover,.legal a:hover{color:#fff}
    .legal{border-top:1px solid rgba(255,255,255,.16);margin-top:35px;padding-top:22px;color:#b8cbe1;font-size:12px;line-height:2}
    .legal a{color:#b8cbe1}
    .fixed-cta{position:fixed;left:0;right:0;bottom:0;background:#0b3d91;color:#fff;z-index:20;box-shadow:0 -8px 25px rgba(13,54,103,.16)}
    .fixed-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .fixed-inner p{margin:0;color:#dcecff;font-size:14px}
    .fixed-inner .button{margin:0;background:#fff;color:var(--blue-deep)}
    .fixed-inner .button:hover{background:#dff3ff}
    @media(max-width:1023px){
      .hero-console{grid-template-columns:135px 1fr}
      .signal-list{grid-column:1/-1;border-left:0;border-top:1px solid var(--line);padding:13px 0 0;display:flex;gap:20px}
      .signal-list div{flex:1}
      .process{grid-template-columns:repeat(2,1fr)}
      .process:before{display:none}
      .step:nth-child(2),.step:nth-child(4){transform:none}
    }
    @media(max-width:767px){
      body{font-size:15px;padding-bottom:135px}
      .container{padding:0 18px}
      .brand-row{min-height:68px;gap:10px}
      .brand-note,.status{display:none}
      .top-actions{margin-left:auto}
      .top-actions .button{min-height:42px;padding:8px 13px;font-size:13px}
      .icon-nav{display:flex;overflow-x:auto;gap:7px;padding-bottom:3px;scrollbar-width:none}
      .icon-nav::-webkit-scrollbar{display:none}
      .nav-item{min-width:76px;min-height:62px;flex:0 0 auto}
      .hero{padding:48px 0}
      .hero-copy{font-size:16px}
      .hero-actions .button{width:100%;margin-right:0}
      .hero-console{grid-template-columns:1fr;text-align:center;padding:20px}
      .signal-list{display:block;text-align:left}
      .signal-list div{display:flex}
      section{padding:58px 0}
      .process,.showcase-grid,.route-board,.trust-grid,.faq-grid{grid-template-columns:1fr;gap:22px}
      .feedback-list{grid-template-columns:1fr}
      .route-items{grid-template-columns:1fr}
      .showcase-image img{height:270px}
      .cta-box{display:block;padding:27px 23px}
      .cta-box .button{width:100%;margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
      .footer-grid>div:first-child{grid-column:1/-1}
      .fixed-inner{min-height:115px;display:block;padding:13px 18px}
      .fixed-inner p{font-size:13px;margin-bottom:8px}
      .fixed-inner .button{width:100%;min-height:43px}
    }
    @media(max-width:520px){
      h1{font-size:34px}
      h2{font-size:28px}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
    }

/* roulang page: category4 */
:root{
      --blue:#1769d2;
      --blue-deep:#0b3d91;
      --cyan:#23a5c9;
      --ink:#15253d;
      --muted:#63738a;
      --line:#dce6f1;
      --soft:#f4f8fc;
      --pale:#eaf3ff;
      --white:#fff;
      --shadow:0 14px 38px rgba(38,77,125,.10);
      --shadow-sm:0 7px 20px rgba(38,77,125,.08);
      --radius:18px;
      --radius-sm:11px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:#fbfdff;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.8;padding-bottom:94px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{display:block;max-width:100%}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    .container{max-width:1240px;margin:0 auto;padding:0 26px}
    .topline{background:#fff;border-bottom:1px solid var(--line)}
    .brand-row{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .brand{display:flex;align-items:center;gap:12px;font-size:22px;font-weight:800;letter-spacing:.02em;color:var(--blue-deep)}
    .brand-mark{width:40px;height:40px;border-radius:12px;background:var(--blue);position:relative;box-shadow:0 8px 16px rgba(23,105,210,.23)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:2px solid #fff;border-radius:5px}
    .brand-mark:before{width:18px;height:18px;left:8px;top:8px}
    .brand-mark:after{width:10px;height:10px;right:6px;bottom:6px;background:#73d6e8;border:0}
    .brand-note{font-size:12px;color:var(--muted);font-weight:500}
    .top-actions{display:flex;align-items:center;gap:18px}
    .status{font-size:13px;color:#54708f;white-space:nowrap}
    .status i{display:inline-block;width:8px;height:8px;border-radius:50%;background:#31b982;margin-right:7px}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 22px;min-height:48px;font-weight:700;border:1px solid transparent;margin:0 8px 8px 0;transition:.25s ease}
    .button.primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(23,105,210,.2)}
    .button.primary:hover,.button.primary:focus-visible{background:var(--blue-deep);transform:translateY(-2px);outline:3px solid rgba(35,165,201,.2)}
    .button.secondary{background:#fff;border-color:#bcd0e8;color:var(--blue-deep)}
    .button.secondary:hover,.button.secondary:focus-visible{border-color:var(--blue);color:var(--blue);outline:3px solid rgba(23,105,210,.12)}
    .nav-strip{padding:12px 0 15px;background:#f9fbfe}
    .icon-nav{display:grid;grid-template-columns:repeat(7,1fr);gap:10px}
    .nav-item{min-height:66px;border:1px solid transparent;border-radius:13px;display:flex;align-items:center;justify-content:center;gap:8px;flex-direction:column;color:#50627a;font-size:13px;position:relative}
    .nav-item .nav-icon{width:25px;height:25px;border:1.6px solid #91a7c2;border-radius:8px;display:grid;place-items:center;font-size:12px}
    .nav-item:hover,.nav-item:focus-visible{background:#fff;border-color:#c8ddf7;color:var(--blue);outline:none;box-shadow:var(--shadow-sm)}
    .nav-item.active{background:#eaf3ff;border-color:#b8d5f8;color:var(--blue-deep);font-weight:700}
    .nav-item.active:after{content:"";height:3px;width:30px;background:var(--blue);border-radius:4px;position:absolute;bottom:3px}
    .hero{padding:55px 0 64px;background:#f2f8ff}
    .hero-banner{min-height:365px;border-radius:24px;background-image:linear-gradient(90deg,rgba(9,52,111,.88),rgba(20,120,180,.2)),url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;position:relative;overflow:hidden;display:flex;align-items:center}
    .hero-banner:after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.09) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.09) 1px,transparent 1px);background-size:38px 38px;opacity:.35}
    .hero-content{position:relative;z-index:1;padding:48px 54px;max-width:760px;color:#fff}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-weight:800;letter-spacing:.1em;font-size:12px}
    .hero .eyebrow{color:#a9eaf3}
    .eyebrow:before,.section-kicker:before{content:"";width:26px;height:2px;background:var(--cyan)}
    h1,h2,h3{line-height:1.25;margin-top:0}
    h1{font-size:clamp(34px,5vw,54px);letter-spacing:-.04em;margin:16px 0 17px;font-weight:800}
    h2{font-size:34px;margin:12px 0 13px;font-weight:800}
    h3{font-size:20px;margin-bottom:8px}
    .hero-content p{font-size:18px;color:#e2effb;max-width:650px;margin:0 0 27px}
    .hero-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
    .hero-meta span,.tag{font-size:12px;border:1px solid #b8d5f8;background:#f0f7ff;color:var(--blue-deep);padding:5px 10px;border-radius:30px;font-weight:700}
    .hero-meta span{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.3);color:#fff}
    section{padding:76px 0}
    .section-head{max-width:720px;margin-bottom:32px}
    .section-head p{color:var(--muted);margin:0}
    .topic-layout{display:grid;grid-template-columns:minmax(0,2.1fr) minmax(260px,1fr);gap:32px;align-items:start}
    .topic-list{display:grid;gap:15px}
    .topic-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 24px;display:grid;grid-template-columns:74px 1fr 28px;gap:18px;align-items:center;box-shadow:var(--shadow-sm);transition:.25s ease}
    .topic-item:hover{transform:translateY(-3px);border-color:#b9d5f5;box-shadow:var(--shadow)}
    .topic-item .date{font-size:12px;color:var(--blue);font-weight:800;line-height:1.4}
    .topic-item .date strong{display:block;font-size:25px;color:var(--blue-deep)}
    .topic-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
    .topic-item h3{margin:0 0 5px;font-size:19px}
    .topic-arrow{font-size:24px;color:var(--blue)}
    .side-panel{background:#0b3d91;color:#fff;border-radius:20px;padding:28px;box-shadow:var(--shadow)}
    .side-panel h3{font-size:23px}
    .side-panel p{color:#d7e7f8;font-size:14px}
    .side-panel ul{list-style:none;margin:22px 0;padding:0}
    .side-panel li{border-top:1px solid rgba(255,255,255,.2);padding:12px 0;color:#e9f3fd;font-size:14px}
    .side-panel li span{float:right;color:#8fe0eb}
    .feature-section{background:#fff}
    .feature-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:36px;align-items:stretch}
    .feature-image{min-height:330px;border-radius:21px;overflow:hidden;position:relative}
    .feature-image img{width:100%;height:100%;object-fit:cover}
    .image-caption{position:absolute;left:22px;bottom:20px;background:rgba(255,255,255,.94);padding:13px 16px;border-radius:12px;font-weight:700;color:var(--blue-deep)}
    .feature-copy{padding:30px;background:var(--soft);border:1px solid var(--line);border-radius:21px}
    .feature-copy p{color:var(--muted)}
    .check-list{list-style:none;margin:22px 0;padding:0}
    .check-list li{padding:10px 0 10px 28px;border-bottom:1px dashed #d8e4f0;position:relative;color:#40546c}
    .check-list li:before{content:"✓";position:absolute;left:0;color:var(--blue);font-weight:800}
    .tag-panel{padding:72px 0;background:#f4f8fc}
    .tag-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .tag-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:21px;box-shadow:var(--shadow-sm)}
    .tag-card h3{font-size:18px;margin:14px 0 6px}
    .tag-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}
    .trust-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:42px;align-items:start}
    .trust-number{font-size:68px;line-height:1;font-weight:800;color:var(--blue-deep);margin:14px 0}
    .trust-intro p{color:var(--muted)}
    .feedback-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .feedback{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}
    .feedback p{font-size:14px;color:#52667e;margin:0 0 13px;line-height:1.75}
    .feedback strong{font-size:13px;color:var(--blue-deep)}
    .faq-section{background:#f2f8ff}
    .faq-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:42px}
    .faq-intro p{color:var(--muted)}
    .accordion{background:transparent;margin:0}
    .accordion-item{margin-bottom:11px;border:1px solid var(--line)!important;border-radius:12px;overflow:hidden;background:#fff}
    .accordion-title{font-size:16px;font-weight:700;color:var(--ink);padding:19px 22px}
    .accordion-title:hover,.accordion-title:focus{background:#eaf3ff;color:var(--blue-deep)}
    .accordion-content{border-top:1px solid var(--line);background:#fbfdff;color:var(--muted);font-size:14px;padding:18px 22px}
    .cta-band{padding:46px 0;background:#fff}
    .cta-box{background:linear-gradient(105deg,#eaf3ff,#f8fcff);border:1px solid #cbdff5;border-radius:22px;padding:32px 38px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta-box p{margin:0;color:var(--muted)}
    footer{background:#0d294d;color:#fff;padding:52px 0 30px}
    .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:28px}
    .footer-brand{font-size:24px;font-weight:800;color:#fff}
    .footer-title{font-size:14px;font-weight:800;color:#bde7f1;margin-bottom:13px}
    .footer-links{list-style:none;margin:0;padding:0}
    .footer-links li{margin:7px 0}
    .footer-links a{font-size:14px;color:#d1deec}
    .footer-links a:hover,.legal a:hover{color:#75d9e8}
    .legal{border-top:1px solid rgba(255,255,255,.16);margin-top:35px;padding-top:20px;color:#b8cbe1;font-size:12px;line-height:2}
    .legal a{color:#dceafa}
    .fixed-cta{position:fixed;z-index:20;left:0;right:0;bottom:0;background:#0b3d91;color:#fff;box-shadow:0 -8px 24px rgba(11,61,145,.16)}
    .fixed-inner{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .fixed-inner p{margin:0;font-size:14px;color:#e5f1fb}
    .fixed-inner .button{margin:0;background:#73d6e8;color:#083b72}
    @media(max-width:900px){
      .brand-note{display:none}.icon-nav{grid-template-columns:repeat(7,minmax(90px,1fr));overflow-x:auto;padding-bottom:4px}.nav-item{min-width:90px}
      .topic-layout,.feature-grid,.trust-layout,.faq-grid{grid-template-columns:1fr}
      .tag-grid{grid-template-columns:repeat(2,1fr)}
      .feature-image{min-height:280px}
    }
    @media(max-width:620px){
      body{font-size:15px;padding-bottom:142px}.container{padding:0 18px}.brand-row{min-height:68px}.top-actions .status{display:none}.top-actions .button{padding:9px 13px;min-height:42px;font-size:13px}
      .hero{padding:28px 0 35px}.hero-banner{min-height:470px}.hero-content{padding:34px 24px;align-self:flex-end}h1{font-size:36px}h2{font-size:29px}.hero-content p{font-size:16px}
      section{padding:55px 0}.topic-item{grid-template-columns:55px 1fr 18px;padding:18px 15px;gap:12px}.topic-item h3{font-size:17px}.topic-item p{font-size:13px}.topic-item .date strong{font-size:21px}
      .tag-grid,.feedback-list{grid-template-columns:1fr}.feature-copy{padding:23px}.cta-box{display:block;padding:25px}.cta-box .button{width:100%;margin-top:18px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-grid>div:first-child{grid-column:1/-1}
      .fixed-inner{min-height:128px;display:block;padding:15px 18px}.fixed-inner p{margin-bottom:8px}.fixed-inner .button{width:100%;margin:0}
    }

/* roulang page: category6 */
:root{
      --blue:#1769d2;--blue-deep:#0b3d91;--cyan:#23a5c9;--ink:#15253d;
      --muted:#63738a;--line:#dce6f1;--soft:#f4f8fc;--pale:#eaf3ff;
      --white:#fff;--shadow:0 14px 38px rgba(38,77,125,.10);
      --shadow-sm:0 7px 20px rgba(38,77,125,.08);--radius:18px;--radius-sm:11px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:#fbfdff;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.8;padding-bottom:92px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    .container{max-width:1240px;margin:0 auto;padding:0 26px}
    .topline{background:#fff;border-bottom:1px solid var(--line)}
    .brand-row{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .brand{display:flex;align-items:center;gap:12px;font-size:22px;font-weight:800;color:var(--blue-deep)}
    .brand-mark{width:40px;height:40px;border-radius:12px;background:var(--blue);position:relative;box-shadow:0 8px 16px rgba(23,105,210,.23)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:2px solid #fff;border-radius:5px}
    .brand-mark:before{width:18px;height:18px;left:8px;top:8px}
    .brand-mark:after{width:10px;height:10px;right:6px;bottom:6px;background:#73d6e8;border:0}
    .brand-note{font-size:12px;color:var(--muted);font-weight:500}
    .top-actions{display:flex;align-items:center;gap:17px}
    .status{font-size:12px;color:#52708f;white-space:nowrap}
    .status i{display:inline-block;width:8px;height:8px;background:#35bd8a;border-radius:50%;margin-right:6px}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 22px;min-height:48px;font-weight:700;border:1px solid transparent;margin:0 8px 8px 0;transition:.25s ease}
    .button.primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(23,105,210,.2)}
    .button.primary:hover,.button.primary:focus-visible{background:var(--blue-deep);transform:translateY(-2px);outline:3px solid rgba(35,165,201,.2)}
    .button.secondary{background:#fff;border-color:#bcd0e8;color:var(--blue-deep)}
    .button.secondary:hover,.button.secondary:focus-visible{border-color:var(--blue);color:var(--blue);outline:3px solid rgba(23,105,210,.12)}
    .nav-strip{padding:12px 0 15px;background:#f9fbfe}
    .icon-nav{display:grid;grid-template-columns:repeat(7,1fr);gap:10px}
    .nav-item{min-height:66px;border:1px solid transparent;border-radius:13px;display:flex;align-items:center;justify-content:center;gap:8px;flex-direction:column;color:#50627a;font-size:13px;position:relative}
    .nav-icon{width:25px;height:25px;border:1.6px solid #91a7c2;border-radius:8px;display:grid;place-items:center;font-size:12px}
    .nav-item:hover,.nav-item:focus-visible{background:#fff;border-color:#c8ddf7;color:var(--blue);outline:none;box-shadow:var(--shadow-sm)}
    .nav-item.active{background:#eaf3ff;border-color:#b8d5f8;color:var(--blue-deep);font-weight:700}
    .nav-item.active:after{content:"";height:3px;width:30px;background:var(--blue);border-radius:4px;position:absolute;bottom:3px}
    h1,h2,h3{line-height:1.25;margin-top:0;letter-spacing:-.02em}
    h1{font-size:clamp(34px,4.7vw,56px);margin:15px 0 19px;font-weight:800}
    h2{font-size:clamp(27px,3vw,38px);margin-bottom:15px}
    h3{font-size:20px;margin-bottom:8px}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-weight:800;letter-spacing:.1em;font-size:12px}
    .eyebrow:before,.section-kicker:before{content:"";width:26px;height:2px;background:var(--cyan)}
    .hero{padding:62px 0 72px;background:linear-gradient(180deg,#eef7ff,#fbfdff)}
    .hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
    .hero-copy{font-size:18px;color:#53677f;max-width:620px;margin:0 0 25px}
    .hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
    .tag{display:inline-flex;align-items:center;border:1px solid #c9def4;background:#fff;color:#406486;border-radius:30px;padding:6px 12px;font-size:13px}
    .hero-visual{position:relative;min-height:390px;border-radius:25px;overflow:hidden;background:linear-gradient(90deg,rgba(9,52,111,.77),rgba(20,120,180,.2)),url('/assets/images/backpic/back-2.webp') center/cover;box-shadow:var(--shadow)}
    .hero-visual:after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.11) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.11) 1px,transparent 1px);background-size:38px 38px}
    .floating-label{position:absolute;z-index:2;top:24px;left:24px;color:#fff;background:rgba(16,68,130,.75);border:1px solid rgba(255,255,255,.35);padding:8px 13px;border-radius:9px;font-size:12px}
    .access-panel{position:absolute;z-index:3;left:25px;right:25px;bottom:25px;background:rgba(255,255,255,.96);padding:23px;border-radius:16px;box-shadow:0 14px 30px rgba(5,32,72,.2)}
    .access-panel small{color:var(--blue);font-weight:800;letter-spacing:.08em}
    .access-panel h3{margin:6px 0}
    .progress{height:6px;background:#dceaf8;border-radius:9px;margin-top:15px}
    .progress-meter{background:var(--blue);border-radius:9px}
    section{padding:78px 0}
    .section-head{max-width:720px;margin-bottom:34px}
    .section-head p{color:var(--muted);margin:0}
    .conversion-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:30px;align-items:start}
    .form-card,.info-panel,.help-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
    .form-card{padding:31px}
    label{display:block;font-size:14px;font-weight:700;color:var(--ink);margin-bottom:7px}
    input,select,textarea{width:100%;border:1px solid #cbdbea;border-radius:10px;background:#fcfeff;padding:12px 14px;color:var(--ink);margin-bottom:17px;transition:.2s}
    input:focus,select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(23,105,210,.12);outline:none}
    textarea{min-height:120px;resize:vertical}
    .form-note{font-size:12px;color:var(--muted);margin:2px 0 18px}
    .info-panel{padding:28px;background:#f0f7ff}
    .info-panel ul{list-style:none;padding:0;margin:19px 0 0}
    .info-panel li{padding:13px 0;border-bottom:1px dashed #c8dced;display:flex;gap:12px}
    .info-panel li:last-child{border-bottom:0}
    .number{color:var(--blue);font-weight:800;font-size:14px}
    .quick-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:26px}
    .help-card{padding:21px 22px;display:flex;gap:15px;align-items:flex-start}
    .help-card strong{display:block;margin-bottom:4px}
    .help-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.65}
    .icon-box{width:38px;height:38px;flex:none;border-radius:11px;background:var(--pale);color:var(--blue);display:grid;place-items:center;font-weight:800}
    .split-section{background:#f7fbff}
    .split-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:42px;align-items:center}
    .cover-image{border-radius:22px;overflow:hidden;box-shadow:var(--shadow)}
    .cover-image img{width:100%;height:330px;object-fit:cover}
    .check-list{list-style:none;margin:22px 0;padding:0}
    .check-list li{padding:10px 0 10px 28px;border-bottom:1px dashed #d8e4f0;position:relative;color:#40546c}
    .check-list li:before{content:"✓";position:absolute;left:0;color:var(--blue);font-weight:800}
    .faq-area{display:grid;grid-template-columns:.72fr 1.28fr;gap:45px}
    .faq-intro p{color:var(--muted)}
    .accordion{background:transparent;margin:0}
    .accordion-item{margin-bottom:11px;border:1px solid var(--line)!important;border-radius:12px;overflow:hidden;background:#fff}
    .accordion-title{border:0!important;background:#fff;color:var(--ink);font-size:16px;font-weight:700;padding:18px 48px 18px 20px}
    .accordion-title:hover,.accordion-title:focus{background:var(--pale);color:var(--blue-deep);outline:none}
    .accordion-content{border:0;background:#f8fbff;color:var(--muted);font-size:14px;padding:0 20px 18px}
    .accordion-item.is-active{border-color:#a9ccef!important;box-shadow:var(--shadow-sm)}
    .cta-band{padding:42px 0;background:var(--blue-deep);color:#fff}
    .cta-flex{display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta-band h2{margin-bottom:8px}
    .cta-band p{color:#d6e7fb;margin:0}
    .cta-band .button.primary{background:#fff;color:var(--blue-deep);box-shadow:none}
    .cta-band .button.primary:hover{background:#eaf3ff}
    footer{background:#0d294e;color:#fff;padding:58px 0 105px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
    .footer-brand{font-size:23px;font-weight:800}
    .footer-title{font-weight:800;margin-bottom:13px;color:#fff}
    .footer-links{list-style:none;margin:0;padding:0}
    .footer-links li{margin:7px 0}
    .footer-links a{color:#b8cbe1;font-size:14px}
    .footer-links a:hover,.legal a:hover{color:#fff}
    .legal{border-top:1px solid rgba(255,255,255,.16);margin-top:38px;padding-top:22px;color:#b8cbe1;font-size:13px;line-height:2}
    .legal a{color:#d5e6f8}
    .fixed-cta{position:fixed;z-index:20;bottom:0;left:0;right:0;background:rgba(11,61,145,.97);color:#fff;padding:13px 0;box-shadow:0 -8px 25px rgba(10,49,101,.18)}
    .fixed-inner{display:flex;justify-content:space-between;align-items:center;gap:18px}
    .fixed-inner strong{font-size:15px}.fixed-inner span{font-size:13px;color:#d7e7fa}
    .fixed-cta .button{margin:0;background:#fff;color:var(--blue-deep);min-height:42px;padding:8px 18px}
    .fixed-cta .button:hover{background:#eaf3ff}
    @media(max-width:1023px){
      .brand-note{display:none}.hero-grid{gap:30px}.icon-nav{grid-template-columns:repeat(7,1fr)}
      .conversion-layout,.split-layout{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:767px){
      body{padding-bottom:135px}.container{padding:0 18px}.brand-row{min-height:70px}.top-actions .status{display:none}
      .top-actions .button{padding:9px 13px;min-height:42px;font-size:13px}
      .nav-strip{overflow:hidden}.icon-nav{display:flex;overflow-x:auto;gap:7px;padding-bottom:3px;scrollbar-width:none}
      .icon-nav::-webkit-scrollbar{display:none}.nav-item{min-width:78px;min-height:61px}
      .hero{padding:42px 0 48px}.hero-grid,.conversion-layout,.split-layout,.faq-area{grid-template-columns:1fr}
      h1{font-size:36px}.hero-copy{font-size:16px}.hero-visual{min-height:320px}
      section{padding:55px 0}.quick-row{grid-template-columns:1fr}.form-card{padding:22px}
      .cover-image img{height:250px}.cta-flex{display:block}.cta-flex .button{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:27px}.fixed-inner{display:block}.fixed-inner span{display:block;margin:2px 0 9px}.fixed-cta .button{width:100%}
    }
    @media(max-width:520px){.brand{font-size:19px}.brand-mark{width:35px;height:35px}.footer-grid{grid-template-columns:1fr}.hero-points{gap:7px}}

/* roulang page: category5 */
:root{
      --blue:#1769d2;
      --blue-deep:#0b3d91;
      --cyan:#23a5c9;
      --ink:#15253d;
      --muted:#63738a;
      --line:#dce6f1;
      --soft:#f4f8fc;
      --pale:#eaf3ff;
      --white:#fff;
      --green:#2aa879;
      --amber:#c88927;
      --shadow:0 14px 38px rgba(38,77,125,.10);
      --shadow-sm:0 7px 20px rgba(38,77,125,.08);
      --radius:18px;
      --radius-sm:11px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:#fbfdff;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.8;padding-bottom:90px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    a:hover{color:var(--blue)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    .container{max-width:1240px;margin:0 auto;padding:0 26px}
    .topline{background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:5}
    .brand-row{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .brand{display:flex;align-items:center;gap:12px;font-size:22px;font-weight:800;letter-spacing:.02em;color:var(--blue-deep)}
    .brand-mark{width:40px;height:40px;border-radius:12px;background:var(--blue);position:relative;box-shadow:0 8px 16px rgba(23,105,210,.23)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:2px solid #fff;border-radius:5px}
    .brand-mark:before{width:18px;height:18px;left:8px;top:8px}
    .brand-mark:after{width:10px;height:10px;right:6px;bottom:6px;background:#73d6e8;border:0}
    .brand-note{font-size:12px;color:var(--muted);font-weight:500}
    .top-actions{display:flex;align-items:center;gap:15px}
    .status{font-size:12px;color:var(--muted);white-space:nowrap}
    .status i{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--green);margin-right:6px}
    .nav-strip{padding:12px 0 15px;background:#f9fbfe}
    .icon-nav{display:grid;grid-template-columns:repeat(7,1fr);gap:10px}
    .nav-item{min-height:66px;border:1px solid transparent;border-radius:13px;display:flex;align-items:center;justify-content:center;gap:8px;flex-direction:column;color:#50627a;font-size:13px;position:relative}
    .nav-item .nav-icon{width:25px;height:25px;border:1.6px solid #91a7c2;border-radius:8px;display:grid;place-items:center;font-size:12px}
    .nav-item:hover,.nav-item:focus-visible{background:#fff;border-color:#c8ddf7;color:var(--blue);outline:none;box-shadow:var(--shadow-sm)}
    .nav-item.active{background:#eaf3ff;border-color:#b8d5f8;color:var(--blue-deep);font-weight:700}
    .nav-item.active:after{content:"";height:3px;width:30px;background:var(--blue);border-radius:4px;position:absolute;bottom:3px}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 22px;min-height:48px;font-weight:700;border:1px solid transparent;margin:0 8px 8px 0;transition:.25s ease}
    .button.primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(23,105,210,.2)}
    .button.primary:hover,.button.primary:focus-visible{background:var(--blue-deep);color:#fff;transform:translateY(-2px);outline:3px solid rgba(35,165,201,.2)}
    .button.secondary{background:#fff;border-color:#bcd0e8;color:var(--blue-deep)}
    .button.secondary:hover,.button.secondary:focus-visible{border-color:var(--blue);color:var(--blue);outline:3px solid rgba(23,105,210,.12)}
    .hero-help{padding:58px 0 64px;background:#f1f7ff}
    .hero-help-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:54px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-weight:800;letter-spacing:.1em;font-size:12px}
    .eyebrow:before,.section-kicker:before{content:"";width:26px;height:2px;background:var(--cyan)}
    h1,h2,h3{line-height:1.25;margin-top:0}
    h1{font-size:clamp(34px,4.5vw,54px);letter-spacing:-.035em;margin:14px 0 18px;font-weight:800}
    h2{font-size:34px;margin:10px 0 13px;font-weight:800}
    h3{font-size:19px;margin-bottom:8px}
    .hero-copy{font-size:17px;color:#53677f;max-width:650px;margin:0 0 25px}
    .hero-search{display:flex;max-width:580px;background:#fff;border:1px solid #c8daed;border-radius:13px;padding:6px;box-shadow:var(--shadow-sm);margin:25px 0 18px}
    .hero-search input{border:0;box-shadow:none;margin:0;height:48px;padding:0 14px;flex:1;color:var(--ink);outline:0}
    .hero-search button{border:0;border-radius:9px;background:var(--blue);color:#fff;padding:0 20px;font-weight:700}
    .hero-search button:hover{background:var(--blue-deep)}
    .help-stage{min-height:390px;border-radius:24px;overflow:hidden;position:relative;background:linear-gradient(135deg,rgba(9,52,111,.84),rgba(23,105,210,.3)),url('/assets/images/backpic/back-2.webp') center/cover;box-shadow:var(--shadow)}
    .stage-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.1) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.1) 1px,transparent 1px);background-size:34px 34px;opacity:.38}
    .data-board{position:absolute;left:25px;right:25px;top:25px;padding:22px;background:rgba(255,255,255,.95);border-radius:16px;box-shadow:0 12px 28px rgba(5,32,72,.2)}
    .data-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:13px}
    .data-head small{color:var(--blue);font-weight:800;letter-spacing:.08em}
    .data-row{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid #edf2f7}
    .data-row:last-child{border:0}
    .data-num{font-weight:800;color:var(--blue);width:25px}
    .data-label{flex:1;font-size:14px}
    .data-state{font-size:12px;color:var(--green);background:#e8f8f1;padding:3px 8px;border-radius:20px}
    .stage-note{position:absolute;bottom:24px;left:25px;right:25px;color:#fff;font-size:13px;display:flex;justify-content:space-between;gap:10px}
    section{padding:76px 0}
    .section-head{max-width:760px;margin-bottom:32px}
    .section-head p{color:var(--muted);margin:0;font-size:16px}
    .quick-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
    .quick-main{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm)}
    .quick-main h3{font-size:24px}
    .help-links{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:20px}
    .help-link{padding:17px 18px;border:1px solid var(--line);border-radius:13px;background:#fbfdff;display:flex;justify-content:space-between;align-items:center}
    .help-link strong{display:block;font-size:15px}
    .help-link small{color:var(--muted);font-size:12px}
    .help-link:hover{border-color:#a9c9ed;transform:translateY(-2px);box-shadow:var(--shadow-sm)}
    .notice-panel{border-radius:var(--radius);padding:29px;background:var(--blue-deep);color:#fff;position:relative;overflow:hidden}
    .notice-panel:after{content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(255,255,255,.22);border-radius:50%;right:-65px;bottom:-75px}
    .notice-panel p{color:#dcecff;font-size:14px}
    .notice-list{list-style:none;margin:20px 0 0;padding:0}
    .notice-list li{padding:11px 0;border-bottom:1px solid rgba(255,255,255,.17);font-size:14px}
    .notice-list li:last-child{border:0}
    .notice-list b{color:#78d8e7;margin-right:7px}
    .guide-band{background:#f5f9fd}
    .guide-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:45px;align-items:start}
    .guide-photo{border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}
    .guide-photo img{width:100%;height:370px;object-fit:cover}
    .step-list{border-left:2px solid #cfe1f5;padding-left:28px}
    .step{position:relative;padding:0 0 27px}
    .step:before{content:"";position:absolute;width:13px;height:13px;border-radius:50%;background:var(--blue);border:4px solid #e5f1ff;left:-36px;top:6px}
    .step:last-child{padding-bottom:0}
    .step-label{font-size:12px;color:var(--blue);font-weight:800;letter-spacing:.08em}
    .step p{color:var(--muted);margin:0;font-size:15px}
    .tip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
    .tip{padding:23px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow-sm)}
    .tip .tip-icon{width:36px;height:36px;border-radius:10px;background:var(--pale);color:var(--blue);display:grid;place-items:center;font-weight:800;margin-bottom:15px}
    .tip p{color:var(--muted);font-size:14px;margin:0}
    .faq-layout{display:grid;grid-template-columns:.68fr 1.32fr;gap:45px}
    .faq-intro p{color:var(--muted)}
    .accordion-item{border:1px solid var(--line);border-radius:12px;margin-bottom:11px;background:#fff;overflow:hidden;box-shadow:0 3px 12px rgba(38,77,125,.03)}
    .accordion-trigger{width:100%;background:#fff;color:var(--ink);border:0;padding:18px 22px;text-align:left;display:flex;justify-content:space-between;align-items:center;font-weight:700}
    .accordion-trigger span:last-child{font-size:24px;color:var(--blue);transition:.25s}
    .accordion-trigger:hover,.accordion-trigger:focus-visible{background:#f5f9ff;color:var(--blue-deep);outline:3px solid rgba(23,105,210,.12);outline-offset:-3px}
    .accordion-content{display:none;padding:0 22px 19px;color:var(--muted);font-size:14px}
    .accordion-item.open{border-color:#a8c9ef;background:#f8fbff}
    .accordion-item.open .accordion-content{display:block}
    .accordion-item.open .accordion-trigger{background:#f8fbff}
    .accordion-item.open .accordion-trigger span:last-child{transform:rotate(45deg)}
    .related{padding:28px 0 82px}
    .related-box{background:#eaf3ff;border:1px solid #c7def8;border-radius:18px;padding:27px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .related-box p{margin:0;color:#53677f}
    .tag-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:16px}
    .tag{display:inline-flex;align-items:center;border:1px solid #c5d9ef;background:#fff;border-radius:30px;padding:7px 12px;font-size:13px;color:var(--blue-deep)}
    footer{background:#102a4e;color:#fff;padding:56px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
    .footer-brand{font-size:22px;font-weight:800}
    .footer-title{font-weight:800;color:#fff;margin-bottom:13px}
    .footer-links{list-style:none;margin:0;padding:0}
    .footer-links li{margin:7px 0}
    .footer-links a{font-size:14px;color:#b8cbe1}
    .footer-links a:hover{color:#fff}
    .legal{border-top:1px solid rgba(255,255,255,.16);margin-top:38px;padding-top:20px;color:#b8cbe1;font-size:12px;line-height:2}
    .legal a{color:#cfe5ff}
    .fixed-cta{position:fixed;bottom:0;left:0;right:0;z-index:20;background:#0b3d91;color:#fff;box-shadow:0 -8px 22px rgba(21,61,112,.18)}
    .fixed-inner{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .fixed-inner strong{font-size:15px}
    .fixed-inner span{color:#cfe2fb;font-size:13px}
    .fixed-cta .button{margin:0;background:#fff;color:var(--blue-deep)}
    .fixed-cta .button:hover{background:#dff4ff}
    @media(max-width:1023px){
      .brand-note{display:none}
      .hero-help-grid,.quick-grid,.guide-layout,.faq-layout{grid-template-columns:1fr}
      .help-stage{max-width:680px}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:767px){
      body{font-size:15px;padding-bottom:142px}
      .container{padding:0 18px}
      .brand-row{min-height:68px}
      .brand{font-size:19px}
      .brand-mark{width:35px;height:35px}
      .top-actions .status{display:none}
      .top-actions .button{padding:9px 13px;min-height:42px;font-size:13px}
      .nav-strip{padding:8px 0 10px;overflow:hidden}
      .icon-nav{display:flex;overflow-x:auto;gap:7px;padding-bottom:3px;scrollbar-width:none}
      .icon-nav::-webkit-scrollbar{display:none}
      .nav-item{flex:0 0 82px;min-height:61px;font-size:12px}
      .hero-help{padding:42px 0 45px}
      h1{font-size:36px}
      h2{font-size:28px}
      .hero-search{display:block;padding:7px}
      .hero-search input{width:100%;height:46px}
      .hero-search button{width:100%;height:46px}
      .help-stage{min-height:360px}
      section{padding:55px 0}
      .help-links,.tip-grid{grid-template-columns:1fr}
      .quick-main,.notice-panel{padding:22px}
      .guide-photo img{height:260px}
      .related-box{display:block}
      .related-box .button{margin-top:18px;width:100%}
      .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
      .footer-grid>div:first-child{grid-column:1/-1}
      .fixed-inner{min-height:128px;display:block;padding:13px 18px}
      .fixed-inner span{display:block;margin:3px 0 9px}
      .fixed-cta .button{width:100%;margin:0}
    }
    @media(max-width:520px){
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
      .stage-note{display:block}
      .stage-note span{display:block;margin-top:3px}
    }