/* roulang page: index */
:root{
      --blue:#1167d8;
      --blue-deep:#0a3f98;
      --cyan:#16b9e7;
      --ink:#15243d;
      --muted:#71809a;
      --paper:#f5f8fc;
      --white:#ffffff;
      --line:#e4eaf2;
      --green:#1bb87a;
      --orange:#ff9b45;
      --radius:20px;
      --radius-sm:12px;
      --shadow:0 18px 50px rgba(26,69,126,.10);
      --shadow-sm:0 8px 24px rgba(25,66,119,.08);
      --ease:all .28s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    :focus-visible{outline:3px solid rgba(22,185,231,.45);outline-offset:3px}
    .shell{min-height:100vh}
    .side-nav{position:fixed;z-index:30;left:0;top:0;bottom:0;width:248px;background:#fff;border-right:1px solid var(--line);padding:28px 20px;display:flex;flex-direction:column}
    .brand{display:flex;align-items:center;gap:12px;padding:4px 10px 30px}
    .brand-mark{width:40px;height:40px;border-radius:13px;background:linear-gradient(145deg,var(--blue),var(--cyan));color:#fff;display:grid;place-items:center;font-size:20px;font-weight:800;box-shadow:0 8px 18px rgba(17,103,216,.23)}
    .brand strong{font-size:20px;letter-spacing:-.5px}
    .brand small{display:block;color:var(--muted);font-size:10px;line-height:1.2;margin-top:1px}
    .nav-label{padding:0 12px 10px;color:#a1adbf;font-size:11px;letter-spacing:1.5px;text-transform:uppercase}
    .nav-list{list-style:none;display:grid;gap:5px}
    .nav-list a{display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:12px;color:#5c6c85;transition:var(--ease);font-size:14px}
    .nav-list a:hover,.nav-list a.active{background:#eaf3ff;color:var(--blue);font-weight:700}
    .nav-icon{width:25px;height:25px;border-radius:8px;background:#f1f5fa;display:grid;place-items:center;font-size:12px}
    .nav-list a.active .nav-icon{background:var(--blue);color:#fff}
    .nav-bottom{margin-top:auto;padding:18px 12px 0;border-top:1px solid var(--line)}
    .nav-bottom p{font-size:12px;color:var(--muted);line-height:1.6}
    .main-wrap{margin-left:248px}
    .topbar{height:72px;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(228,234,242,.8);display:flex;align-items:center;justify-content:space-between;padding:0 5vw;position:sticky;top:0;z-index:20}
    .crumb{font-size:13px;color:var(--muted)}
    .crumb b{color:var(--ink);margin-left:8px}
    .top-actions{display:flex;align-items:center;gap:12px}
    .search{height:40px;width:220px;background:#f5f7fb;border:1px solid transparent;border-radius:12px;display:flex;align-items:center;padding:0 12px;gap:8px;color:var(--muted)}
    .search input{border:0;background:transparent;outline:0;width:100%;font-size:13px;color:var(--ink)}
    .search:focus-within{border-color:#a9d4ff;background:#fff}
    .outline-btn,.primary-btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;border-radius:12px;padding:11px 18px;font-weight:700;font-size:14px;transition:var(--ease)}
    .outline-btn{color:var(--blue);border:1px solid #bdd7fb;background:#fff}
    .outline-btn:hover{background:#edf6ff;transform:translateY(-2px)}
    .primary-btn{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(17,103,216,.22)}
    .primary-btn:hover{background:var(--blue-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(17,103,216,.28)}
    .container{width:min(1180px,calc(100% - 72px));margin:auto}
    main{overflow:hidden}
    section{padding:86px 0}
    .eyebrow{color:var(--blue);font-weight:800;font-size:12px;letter-spacing:1.8px;margin-bottom:12px}
    h1,h2,h3{line-height:1.25;letter-spacing:-.8px}
    h1{font-size:clamp(38px,5vw,68px);max-width:730px}
    h2{font-size:clamp(28px,3.4vw,44px)}
    h3{font-size:20px}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}
    .section-head p{max-width:540px;color:var(--muted);font-size:15px}
    .hero{padding:62px 0 70px;background:#fff;position:relative}
    .hero:after{content:"";position:absolute;right:-100px;top:0;width:46%;height:100%;background:url("/assets/images/backpic/back-1.webp") center/cover no-repeat;clip-path:polygon(22% 0,100% 0,100% 100%,0 100%);opacity:.94}
    .hero-content{position:relative;z-index:2;min-height:475px;display:flex;align-items:center}
    .hero-copy{width:58%;padding:35px 0}
    .hero-copy h1{margin-bottom:22px}
    .hero-copy>p{max-width:650px;color:#64748b;font-size:17px;line-height:1.9;margin-bottom:28px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:30px}
    .hero-points{display:flex;gap:28px;flex-wrap:wrap}
    .hero-point{display:flex;align-items:center;gap:9px;color:#52647e;font-size:13px}
    .point-dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 5px #e2f8ee}
    .hero-panel{position:absolute;z-index:3;right:8%;bottom:24px;width:335px;background:rgba(255,255,255,.96);border:1px solid rgba(255,255,255,.85);padding:22px;border-radius:20px;box-shadow:0 22px 55px rgba(13,53,106,.22)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:17px}
    .panel-top strong{font-size:16px}
    .live-badge{font-size:11px;color:#118d60;background:#e5f9f0;border-radius:20px;padding:4px 9px;font-weight:700}
    .score-row{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);gap:10px}
    .team{text-align:center;font-size:12px;color:#596980}
    .team i{display:grid;place-items:center;width:35px;height:35px;border-radius:11px;margin:0 auto 6px;background:#edf4ff;color:var(--blue);font-style:normal;font-weight:800}
    .score{font-size:25px;font-weight:800;color:var(--ink);white-space:nowrap}
    .panel-foot{display:flex;justify-content:space-between;color:var(--muted);font-size:11px;margin-top:14px}
    .metrics{background:#f9fbfe;padding:35px 0}
    .metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}
    .metric{background:#fff;padding:25px 24px}
    .metric b{display:block;font-size:32px;letter-spacing:-1px;color:var(--blue);line-height:1.2}
    .metric span{display:block;color:var(--muted);font-size:13px;margin-top:5px}
    .comparison{background:#fff}
    .compare-layout{display:grid;grid-template-columns:1fr 345px;gap:30px;align-items:start}
    .compare-table{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff;box-shadow:var(--shadow-sm)}
    .compare-head,.compare-item{display:grid;grid-template-columns:1.4fr .85fr .85fr .85fr;align-items:center}
    .compare-head{background:#f2f7ff;color:#526781;font-size:12px;font-weight:700;padding:15px 20px}
    .compare-item{padding:17px 20px;border-top:1px solid var(--line);font-size:14px}
    .compare-item span:not(:first-child){text-align:center;color:#526781}
    .compare-item strong{font-size:14px}
    .yes{color:var(--green)!important;font-weight:800}
    .no{color:#aeb8c7!important}
    .recommend{background:#0d4ba8;color:#fff;border-radius:20px;padding:28px;position:relative;overflow:hidden;box-shadow:0 18px 40px rgba(13,75,168,.23)}
    .recommend:after{content:"";position:absolute;width:180px;height:180px;border-radius:50%;right:-75px;bottom:-85px;background:rgba(22,185,231,.25)}
    .recommend .tag{display:inline-block;padding:5px 10px;border-radius:20px;background:#1bb87a;color:#fff;font-size:11px;font-weight:800;margin-bottom:20px}
    .recommend h3{font-size:26px;margin-bottom:12px}
    .recommend p{color:#c8ddff;font-size:14px;margin-bottom:20px}
    .recommend ul{list-style:none;display:grid;gap:9px;margin-bottom:24px}
    .recommend li{font-size:13px;color:#eaf3ff}
    .recommend li:before{content:"✓";color:#63e3ad;font-weight:900;margin-right:8px}
    .recommend .primary-btn{background:#fff;color:var(--blue);position:relative;z-index:1}
    .recommend .primary-btn:hover{background:#e8f5ff}
    .feature-band{background:#eef5fc;position:relative}
    .feature-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
    .feature-image{border-radius:24px;overflow:hidden;box-shadow:var(--shadow);position:relative}
    .feature-image img{width:100%;height:380px;object-fit:cover}
    .image-note{position:absolute;left:20px;bottom:20px;background:rgba(10,63,152,.88);color:#fff;padding:13px 16px;border-radius:12px;font-size:13px}
    .feature-copy p{color:var(--muted);margin:16px 0 25px;line-height:1.9}
    .check-list{list-style:none;display:grid;gap:14px}
    .check-list li{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:#425571}
    .check-list li:before{content:"";flex:0 0 22px;height:22px;border-radius:7px;background:#dff7ed url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231bb87a' stroke-width='3'%3E%3Cpath d='m5 12 4 4L19 6'/%3E%3C/svg%3E") center/14px no-repeat}
    .matrix{background:#fff}
    .matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .matrix-card{border:1px solid var(--line);padding:23px;border-radius:17px;background:#fff;transition:var(--ease)}
    .matrix-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-sm);border-color:#bad8ff}
    .matrix-card .num{color:#a9b9ce;font-size:12px;font-weight:800;margin-bottom:14px}
    .matrix-card h3{font-size:18px;margin-bottom:8px}
    .matrix-card p{font-size:13px;color:var(--muted);line-height:1.75}
    .matrix-card a{display:inline-block;color:var(--blue);font-size:13px;font-weight:700;margin-top:15px}
    .topics{background:#f8fafc}
    .topic-layout{display:grid;grid-template-columns:1fr 1.4fr;gap:30px}
    .topic-intro{background:url("/assets/images/backpic/back-2.webp") center/cover;border-radius:20px;min-height:390px;padding:30px;color:#fff;display:flex;flex-direction:column;justify-content:end;position:relative;overflow:hidden}
    .topic-intro:before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,47,103,.05),rgba(8,47,103,.87))}
    .topic-intro>*{position:relative}
    .topic-intro h3{font-size:27px;margin-bottom:9px}
    .topic-intro p{color:#dceaff;font-size:14px}
    .topic-list{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}
    .topic-card{background:#fff;border-radius:16px;padding:19px;border:1px solid var(--line);display:flex;gap:14px;align-items:center;transition:var(--ease)}
    .topic-card:hover{box-shadow:var(--shadow-sm);transform:translateY(-3px)}
    .topic-card img{width:70px;height:70px;object-fit:cover;border-radius:12px}
    .topic-card h3{font-size:16px;margin-bottom:4px}
    .topic-card p{color:var(--muted);font-size:12px;line-height:1.5}
    .steps{background:#fff}
    .steps-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .step{padding:28px 22px 30px;border-right:1px solid var(--line);position:relative}
    .step:last-child{border-right:0}
    .step-number{color:var(--blue);font-size:13px;font-weight:800;margin-bottom:21px}
    .step h3{font-size:18px;margin-bottom:9px}
    .step p{color:var(--muted);font-size:13px}
    .step:after{content:"→";position:absolute;right:-10px;top:42px;width:20px;height:20px;display:grid;place-items:center;color:#9eb0c6;background:#fff;font-size:15px;z-index:2}
    .step:last-child:after{display:none}
    .short-flow{background:#0e4a9f;color:#fff}
    .flow-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:55px;align-items:center}
    .short-flow .eyebrow{color:#7ddbf3}
    .short-flow h2{max-width:400px}
    .short-flow .section-head{display:block;margin:0}
    .short-flow .section-head p{color:#c6dcfa;margin-top:18px}
    .flow-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}
    .flow-card{min-height:190px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.08);border-radius:16px;padding:20px}
    .flow-card b{display:block;font-size:29px;color:#78daf3;margin-bottom:20px}
    .flow-card h3{font-size:16px;margin-bottom:8px}
    .flow-card p{color:#c5dafa;font-size:12px;line-height:1.7}
    .news{background:#fff}
    .news-layout{display:grid;grid-template-columns:1.32fr .68fr;gap:30px}
    .news-list{border-top:1px solid var(--line)}
    .news-item{display:grid;grid-template-columns:74px 1fr auto;gap:18px;align-items:center;padding:21px 0;border-bottom:1px solid var(--line)}
    .news-date{color:var(--blue);font-size:12px;font-weight:800}
    .news-item h3{font-size:17px;margin-bottom:4px}
    .news-item p{color:var(--muted);font-size:13px;line-height:1.6}
    .read-more{color:var(--blue);font-size:12px;font-weight:800;white-space:nowrap}
    .news-feature{border-radius:20px;overflow:hidden;background:#f0f6ff}
    .news-feature img{height:180px;width:100%;object-fit:cover}
    .news-feature-content{padding:22px}
    .news-feature h3{font-size:22px;margin-bottom:8px}
    .news-feature p{color:var(--muted);font-size:13px;margin-bottom:16px}
    .trust{background:#f7fafd}
    .trust-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:18px}
    .trust-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:25px}
    .trust-card h3{font-size:18px;margin-bottom:10px}
    .trust-card p{color:var(--muted);font-size:13px;line-height:1.8}
    .quote{font-size:20px;line-height:1.6;color:var(--ink);font-weight:700}
    .quote small{display:block;color:var(--muted);font-weight:400;font-size:12px;margin-top:18px}
    .vertical{background:#fff}
    .vertical-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .vertical-card{min-height:285px;border-radius:18px;overflow:hidden;position:relative;background:#123e7f;color:#fff}
    .vertical-card img{width:100%;height:100%;object-fit:cover;opacity:.75;transition:var(--ease)}
    .vertical-card:hover img{transform:scale(1.06);opacity:.9}
    .vertical-card:after{content:"";position:absolute;inset:35% 0 0;background:linear-gradient(transparent,rgba(4,23,56,.95))}
    .vertical-content{position:absolute;z-index:2;bottom:17px;left:17px;right:17px}
    .vertical-content span{font-size:11px;color:#8fe6f5}
    .vertical-content h3{font-size:17px;margin:5px 0 8px}
    .vertical-content a{font-size:12px;color:#fff;border-bottom:1px solid rgba(255,255,255,.6)}
    .offers{background:#eef6ff}
    .offer-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;align-items:center}
    .offer-copy p{color:var(--muted);margin-top:16px;line-height:1.9}
    .offer-copy .primary-btn{margin-top:22px}
    .offer-steps{display:grid;gap:14px}
    .offer-row{display:grid;grid-template-columns:120px 1fr 90px;align-items:center;gap:18px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:17px 20px}
    .offer-row strong{color:var(--blue);font-size:16px}
    .offer-row p{font-size:13px;color:#52647e}
    .offer-row span{font-size:12px;text-align:right;color:var(--orange);font-weight:800}
    .faq{background:#fff}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 22px}
    details{border:1px solid var(--line);border-radius:14px;background:#fbfcfe;padding:18px 20px;transition:var(--ease)}
    details[open]{background:#f3f8ff;border-color:#b9d7fc}
    summary{cursor:pointer;list-style:none;font-weight:700;font-size:15px;padding-right:24px;position:relative}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:0;top:-2px;color:var(--blue);font-size:22px;font-weight:400}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted);font-size:13px;line-height:1.85;margin-top:13px}
    .brand-story{background:#f7fafd}
    .story-layout{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:start}
    .story-copy p{color:#5b6c84;font-size:15px;line-height:2;margin-top:18px}
    .story-notes{display:grid;gap:12px}
    .story-note{background:#fff;border:1px solid var(--line);padding:18px 20px;border-radius:14px;display:flex;gap:15px}
    .story-note b{color:var(--blue);font-size:18px}
    .story-note span{font-size:13px;color:#5b6c84}
    .contact{background:#fff;padding-bottom:92px}
    .contact-box{border-radius:24px;background:linear-gradient(115deg,#0e4da6,#1167d8);color:#fff;padding:42px 48px;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;overflow:hidden}
    .contact-box:after{content:"";position:absolute;width:300px;height:300px;border-radius:50%;background:rgba(53,207,242,.18);right:12%;top:-180px}
    .contact-box>*{position:relative;z-index:1}
    .contact-box h2{font-size:31px;margin-bottom:9px}
    .contact-box p{color:#c9ddfc;font-size:14px;max-width:630px}
    .contact-box .primary-btn{background:#fff;color:var(--blue);white-space:nowrap}
    .footer{margin-left:248px;background:#102542;color:#c2d0e3;padding:45px 5vw 25px}
    .footer-top{display:flex;justify-content:space-between;gap:35px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.12)}
    .footer-brand strong{font-size:21px;color:#fff}
    .footer-brand p{font-size:12px;max-width:330px;line-height:1.8;margin-top:10px;color:#91a6c0}
    .footer-links{display:flex;gap:25px;align-items:center;flex-wrap:wrap}
    .footer-links a{font-size:13px;color:#c2d0e3;transition:var(--ease)}
    .footer-links a:hover{color:#6bd8f2}
    .footer-bottom{padding-top:20px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:#7f96b2;font-size:11px}
    @media(max-width:1100px){
      .side-nav{width:215px}.main-wrap{margin-left:215px}.footer{margin-left:215px}
      .hero-panel{right:4%}.hero-copy{width:63%}
      .container{width:min(100% - 48px,1100px)}
    }
    @media(max-width:820px){
      .side-nav{position:sticky;top:0;bottom:auto;width:100%;height:auto;padding:12px 18px;display:block;border-right:0;border-bottom:1px solid var(--line)}
      .brand{padding:0 0 12px}.nav-label{display:none}.nav-list{display:flex;overflow-x:auto;gap:5px;padding-bottom:2px}
      .nav-list a{white-space:nowrap;padding:8px 10px;font-size:12px}.nav-icon{display:none}.nav-bottom{display:none}
      .main-wrap{margin-left:0}.footer{margin-left:0}.topbar{height:58px;padding:0 24px}
      .search{width:170px}.hero{padding-top:35px}.hero:after{opacity:.24;width:70%;clip-path:none}
      .hero-content{min-height:540px}.hero-copy{width:100%}.hero-panel{right:24px;bottom:28px;width:310px}
      .compare-layout,.feature-layout,.flow-layout,.news-layout,.offer-layout,.story-layout{grid-template-columns:1fr}
      .metrics-grid{grid-template-columns:repeat(2,1fr)}
      .trust-grid{grid-template-columns:1fr 1fr}.trust-card:first-child{grid-column:span 2}
      .vertical-grid{grid-template-columns:repeat(2,1fr)}
      .offer-copy{max-width:620px}
    }
    @media(max-width:560px){
      body{font-size:14px}.container{width:calc(100% - 34px)}section{padding:58px 0}
      .topbar{padding:0 17px}.crumb{font-size:11px}.top-actions .outline-btn{display:none}.search{width:145px;height:35px}
      h1{font-size:39px}.hero-copy>p{font-size:15px}.hero-content{min-height:600px}.hero-panel{left:0;right:0;width:100%;bottom:15px}
      .hero-points{gap:15px}.metrics-grid,.matrix-grid,.topic-list,.flow-cards,.faq-grid{grid-template-columns:1fr}
      .section-head{display:block}.section-head p{margin-top:12px}
      .compare-table{font-size:12px}.compare-head,.compare-item{grid-template-columns:1.35fr .8fr .8fr .8fr;padding-left:12px;padding-right:12px}.compare-item{font-size:12px}
      .feature-image img{height:270px}.steps-wrap{grid-template-columns:1fr}.step{border-right:0;border-bottom:1px solid var(--line);padding:22px}.step:last-child{border-bottom:0}.step:after{display:none}
      .news-item{grid-template-columns:58px 1fr}.news-item .read-more{grid-column:2}.news-item h3{font-size:15px}
      .trust-grid,.vertical-grid{grid-template-columns:1fr}.trust-card:first-child{grid-column:auto}
      .offer-row{grid-template-columns:90px 1fr}.offer-row span{text-align:left;grid-column:2}
      .contact-box{display:block;padding:30px 24px}.contact-box .primary-btn{margin-top:20px}
      .footer{padding-left:20px;padding-right:20px}.footer-top{display:block}.footer-links{margin-top:22px;gap:15px}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
    }

/* roulang page: category2 */
:root{
 --blue:#1167d8;--blue-deep:#0a3f98;--cyan:#16b9e7;--ink:#15243d;
 --muted:#71809a;--paper:#f5f8fc;--white:#fff;--line:#e4eaf2;
 --green:#1bb87a;--orange:#ff9b45;--radius:20px;--radius-sm:12px;
 --shadow:0 18px 50px rgba(26,69,126,.10);--shadow-sm:0 8px 24px rgba(25,66,119,.08);
 --ease:all .28s ease;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:15px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
button{cursor:pointer;border:0}
h1,h2,h3,h4{line-height:1.25;letter-spacing:-.5px}
h1{font-size:clamp(36px,5vw,64px)}
h2{font-size:clamp(26px,3vw,40px)}
h3{font-size:20px}
p{color:var(--muted)}
.side-nav{position:fixed;z-index:30;left:0;top:0;bottom:0;width:248px;background:#fff;border-right:1px solid var(--line);padding:28px 20px;display:flex;flex-direction:column}
.brand{display:flex;align-items:center;gap:12px;padding:4px 10px 30px}
.brand-mark{width:40px;height:40px;border-radius:13px;background:linear-gradient(145deg,var(--blue),var(--cyan));color:#fff;display:grid;place-items:center;font-size:20px;font-weight:800;box-shadow:0 8px 18px rgba(17,103,216,.23)}
.brand strong{font-size:20px;letter-spacing:-.5px}.brand small{display:block;color:var(--muted);font-size:10px;line-height:1.2;margin-top:1px}
.nav-label{padding:0 12px 10px;color:#a1adbf;font-size:11px;letter-spacing:1.5px;text-transform:uppercase}
.nav-list{list-style:none;display:grid;gap:5px}
.nav-list a{display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:12px;color:#5c6c85;transition:var(--ease);font-size:14px}
.nav-list a:hover,.nav-list a.active{background:#eaf3ff;color:var(--blue);font-weight:700}
.nav-icon{width:25px;height:25px;border-radius:8px;background:#f1f5fa;display:grid;place-items:center;font-size:12px}
.nav-list a.active .nav-icon{background:var(--blue);color:#fff}
.nav-bottom{margin-top:auto;padding:18px 12px 0;border-top:1px solid var(--line)}
.nav-bottom p{font-size:12px;color:var(--muted);line-height:1.6}
.main-wrap{margin-left:248px}.topbar{height:72px;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(228,234,242,.8);display:flex;align-items:center;justify-content:space-between;padding:0 5vw;position:sticky;top:0;z-index:20}
.search{height:40px;width:220px;background:#f5f7fb;border:1px solid transparent;border-radius:12px;display:flex;align-items:center;padding:0 12px;gap:8px;color:var(--muted)}
.search input{border:0;background:transparent;outline:0;width:100%;font-size:13px;color:var(--ink)}
.search:focus-within{border-color:#a9d4ff;background:#fff}
.top-actions{display:flex;align-items:center;gap:12px}.menu-toggle{display:none;background:#edf4ff;color:var(--blue);border-radius:10px;padding:9px 12px}
.outline-btn,.primary-btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;border-radius:12px;padding:11px 18px;font-weight:700;font-size:14px;transition:var(--ease)}
.outline-btn{color:var(--blue);border:1px solid #bdd7fb;background:#fff}.outline-btn:hover{background:#edf6ff;transform:translateY(-2px)}
.primary-btn{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(17,103,216,.22)}.primary-btn:hover{background:var(--blue-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(17,103,216,.28)}
.container{width:min(1180px,calc(100% - 72px));margin:auto}main{overflow:hidden}section{padding:82px 0}
.eyebrow{color:var(--blue);font-weight:800;font-size:12px;letter-spacing:1.8px;margin-bottom:12px}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}.section-head p{max-width:550px;font-size:15px}
.hero{position:relative;min-height:530px;background:#0e2344;color:#fff;overflow:hidden;padding:70px 0}
.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,24,53,.96) 0%,rgba(10,39,78,.86) 45%,rgba(10,39,78,.28) 100%),url("/assets/images/backpic/back-2.webp") center/cover no-repeat}
.hero-content{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:55px;align-items:center}
.hero-copy{max-width:650px}.hero .eyebrow{color:#63d8ff}.hero h1{margin-bottom:22px}.hero-copy>p{color:#d6e3f4;font-size:17px;line-height:1.9;margin-bottom:28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px}.hero .outline-btn{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}.hero .outline-btn:hover{background:rgba(255,255,255,.12)}
.hero-points{display:flex;gap:20px;flex-wrap:wrap;color:#c6d5e9;font-size:13px}.hero-point:before{content:"✓";color:#61dbb0;font-weight:800;margin-right:7px}
.poster{min-height:390px;border-radius:24px;overflow:hidden;position:relative;box-shadow:0 25px 60px rgba(0,0,0,.3);border:1px solid rgba(255,255,255,.2);background:url("/assets/images/coverpic/cover-5.webp") center/cover}
.poster:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(5,20,43,.92),transparent 68%)}
.poster-content{position:absolute;z-index:2;left:26px;right:26px;bottom:24px}.hot-badge{display:inline-block;padding:5px 11px;border-radius:20px;background:#ff9b45;color:#fff;font-size:11px;font-weight:800;margin-bottom:15px}.poster h3{font-size:27px;margin-bottom:7px}.poster p{color:#c8d7e9;font-size:13px}
.metrics{padding:28px 0;background:#fff}.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}.metric{background:#fff;padding:24px 25px}.metric strong{display:block;font-size:31px;color:var(--blue);line-height:1.1;margin-bottom:5px}.metric span{font-size:13px;color:var(--muted)}
.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:center}.feature-image{border-radius:24px;overflow:hidden;box-shadow:var(--shadow);position:relative}.feature-image img{width:100%;height:390px;object-fit:cover}.feature-image .image-label{position:absolute;left:20px;bottom:18px;background:rgba(255,255,255,.92);padding:8px 12px;border-radius:10px;color:var(--blue);font-size:12px;font-weight:800}
.feature-copy p{margin:17px 0 25px;line-height:1.9}.check-list{list-style:none;display:grid;gap:14px}.check-list li{display:flex;gap:12px;align-items:flex-start;color:#425571}.check-list li:before{content:"✓";flex:0 0 22px;height:22px;border-radius:7px;background:#dff7ed;color:var(--green);display:grid;place-items:center;font-weight:800;font-size:12px}
.data-matrix{background:#eef5fc}.matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.matrix-card{background:#fff;border:1px solid var(--line);padding:25px;border-radius:18px;transition:var(--ease)}.matrix-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.matrix-icon{width:42px;height:42px;border-radius:13px;background:#eaf3ff;color:var(--blue);display:grid;place-items:center;font-weight:800;margin-bottom:18px}.matrix-card p{font-size:14px;margin-top:10px;line-height:1.8}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.flow-step{position:relative;padding:25px 20px;background:#fff;border:1px solid var(--line);border-radius:16px}.flow-step:not(:last-child):after{content:"→";position:absolute;right:-18px;top:43%;color:#9ab9dc;font-size:21px;z-index:2}.step-no{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:1px}.flow-step h3{margin:13px 0 8px;font-size:17px}.flow-step p{font-size:13px}
.compare{background:#fff}.compare-box{border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-sm)}.compare-head,.compare-item{display:grid;grid-template-columns:1.5fr .8fr .8fr .8fr;align-items:center}.compare-head{background:#f0f6ff;padding:17px 20px;color:#5a7394;font-size:13px;font-weight:800}.compare-item{padding:18px 20px;border-top:1px solid var(--line);font-size:14px}.compare-item span:not(:first-child){text-align:center;color:#526781}.compare-item strong{font-size:14px}.good{color:var(--green)!important;font-weight:800}
.scenes{background:#f7faff}.scene-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.scene-large{min-height:280px;background:url("/assets/images/coverpic/cover-7.webp") center/cover;border-radius:20px;overflow:hidden;position:relative}.scene-large:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(7,27,58,.85),transparent)}.scene-large div{position:absolute;z-index:1;left:26px;bottom:24px;color:#fff;max-width:420px}.scene-large p{color:#d8e5f4;margin-top:8px;font-size:13px}.scene-small-grid{display:grid;gap:18px}.scene-small{background:#fff;border:1px solid var(--line);border-radius:18px;padding:23px}.scene-small h3{font-size:17px;margin-bottom:7px}.scene-small p{font-size:13px}
.faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:65px}.faq-intro p{margin-top:15px}.faq-list{display:grid;gap:12px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px}.faq-item summary{cursor:pointer;font-weight:800;list-style:none;display:flex;justify-content:space-between;gap:15px}.faq-item summary:after{content:"+";color:var(--blue);font-size:20px;line-height:1}.faq-item[open] summary:after{content:"−"}.faq-item p{font-size:14px;margin-top:12px;line-height:1.8}
.cta{padding:70px 0}.cta-box{background:linear-gradient(120deg,#0b4aa9,#1167d8);border-radius:24px;padding:46px 55px;color:#fff;display:flex;justify-content:space-between;align-items:center;gap:30px;box-shadow:0 20px 45px rgba(17,103,216,.23)}.cta-box p{color:#dceaff;max-width:610px;margin-top:10px}.cta-box .primary-btn{background:#fff;color:var(--blue)}.cta-box .primary-btn:hover{background:#eaf5ff}
.footer{background:#10213c;color:#fff;padding:48px 0 24px}.footer-top,.footer-bottom{width:min(1180px,calc(100% - 72px));margin:auto}.footer-top{display:flex;justify-content:space-between;gap:50px;padding-bottom:35px;border-bottom:1px solid rgba(255,255,255,.14)}.footer-brand{max-width:360px}.footer-brand strong{font-size:22px}.footer-brand p{color:#aebed3;margin-top:12px;font-size:13px}.footer-links{display:grid;grid-template-columns:repeat(3,auto);gap:13px 28px;align-content:start}.footer-links a{font-size:13px;color:#c8d5e5;transition:var(--ease)}.footer-links a:hover{color:#fff}.footer-bottom{display:flex;flex-wrap:wrap;gap:12px 28px;padding-top:20px;color:#91a5bf;font-size:12px}
@media(max-width:1024px){.side-nav{width:220px}.main-wrap{margin-left:220px}.hero-content{gap:25px}.container{width:min(100% - 48px,1000px)}.footer-top,.footer-bottom{width:min(100% - 48px,1000px)}}
@media(max-width:768px){.side-nav{transform:translateX(-100%);transition:var(--ease);box-shadow:10px 0 30px rgba(0,0,0,.12)}.side-nav.open{transform:translateX(0)}.main-wrap{margin-left:0}.topbar{padding:0 20px}.menu-toggle{display:block}.search{width:180px}.hero-content,.split,.faq-grid,.scene-layout{grid-template-columns:1fr}.hero{padding:52px 0}.poster{min-height:330px}.metrics-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:not(:last-child):after{display:none}.cta-box{display:block;padding:36px 28px}.cta-box .primary-btn{margin-top:24px}.footer-top{display:block}.footer-links{margin-top:28px}}
@media(max-width:520px){section{padding:60px 0}.container{width:calc(100% - 36px)}.topbar{height:64px}.topbar .outline-btn{display:none}.search{width:150px}.hero h1{font-size:38px}.hero-copy>p{font-size:15px}.metrics-grid,.matrix-grid,.flow-grid{grid-template-columns:1fr}.metric{padding:20px}.compare-box{overflow-x:auto}.compare-head,.compare-item{min-width:590px}.footer-top,.footer-bottom{width:calc(100% - 36px)}.footer-links{grid-template-columns:repeat(2,1fr);gap:12px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}}
:focus-visible{outline:3px solid rgba(22,185,231,.5);outline-offset:3px}

/* roulang page: category1 */
:root{
      --blue:#1167d8;
      --blue-deep:#0a3f98;
      --cyan:#16b9e7;
      --ink:#15243d;
      --muted:#71809a;
      --paper:#f5f8fc;
      --white:#ffffff;
      --line:#e4eaf2;
      --green:#1bb87a;
      --orange:#ff9b45;
      --radius:20px;
      --radius-sm:12px;
      --shadow:0 18px 50px rgba(26,69,126,.10);
      --shadow-sm:0 8px 24px rgba(25,66,119,.08);
      --ease:all .28s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:var(--paper);
      line-height:1.75;
      font-size:15px;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    .side-nav{
      position:fixed;z-index:30;left:0;top:0;bottom:0;width:248px;
      background:#fff;border-right:1px solid var(--line);padding:28px 20px;
      display:flex;flex-direction:column;
    }
    .brand{display:flex;align-items:center;gap:12px;padding:4px 10px 30px}
    .brand-mark{
      width:40px;height:40px;border-radius:13px;
      background:linear-gradient(145deg,var(--blue),var(--cyan));
      color:#fff;display:grid;place-items:center;font-size:20px;font-weight:800;
      box-shadow:0 8px 18px rgba(17,103,216,.23);
    }
    .brand strong{font-size:20px;letter-spacing:-.5px}
    .brand small{display:block;color:var(--muted);font-size:10px;line-height:1.2;margin-top:1px}
    .nav-label{padding:0 12px 10px;color:#a1adbf;font-size:11px;letter-spacing:1.5px;text-transform:uppercase}
    .nav-list{list-style:none;display:grid;gap:5px}
    .nav-list a{
      display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:12px;
      color:#5c6c85;transition:var(--ease);font-size:14px;
    }
    .nav-list a:hover,.nav-list a.active{background:#eaf3ff;color:var(--blue);font-weight:700}
    .nav-icon{
      width:25px;height:25px;border-radius:8px;background:#f1f5fa;display:grid;
      place-items:center;font-size:12px;
    }
    .nav-list a.active .nav-icon{background:var(--blue);color:#fff}
    .nav-bottom{margin-top:auto;padding:18px 12px 0;border-top:1px solid var(--line)}
    .nav-bottom p{font-size:12px;color:var(--muted);line-height:1.6}
    .main-wrap{margin-left:248px}
    .topbar{
      height:72px;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);
      border-bottom:1px solid rgba(228,234,242,.8);display:flex;align-items:center;
      justify-content:space-between;padding:0 5vw;position:sticky;top:0;z-index:20;
    }
    .mobile-menu{display:none;background:#edf5ff;color:var(--blue);width:40px;height:40px;border-radius:11px;font-size:20px}
    .search{
      height:40px;width:250px;background:#f5f7fb;border:1px solid transparent;
      border-radius:12px;display:flex;align-items:center;padding:0 12px;gap:8px;color:var(--muted);
    }
    .search input{border:0;background:transparent;outline:0;width:100%;font-size:13px;color:var(--ink)}
    .search:focus-within{border-color:#a9d4ff;background:#fff}
    .topbar-note{font-size:13px;color:var(--muted)}
    .outline-btn,.primary-btn{
      display:inline-flex;justify-content:center;align-items:center;gap:8px;
      border-radius:12px;padding:11px 18px;font-weight:700;font-size:14px;transition:var(--ease);
    }
    .outline-btn{color:var(--blue);border:1px solid #bdd7fb;background:#fff}
    .outline-btn:hover{background:#edf6ff;transform:translateY(-2px)}
    .primary-btn{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(17,103,216,.22)}
    .primary-btn:hover{background:var(--blue-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(17,103,216,.28)}
    .primary-btn:focus,.outline-btn:focus,.search input:focus,.mobile-menu:focus{outline:3px solid rgba(22,185,231,.28);outline-offset:2px}
    .container{width:min(1180px,calc(100% - 72px));margin:auto}
    main{overflow:hidden}
    section{padding:82px 0}
    .eyebrow{color:var(--blue);font-weight:800;font-size:12px;letter-spacing:1.8px;margin-bottom:12px}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}
    .section-head p{max-width:560px;color:var(--muted);font-size:15px}
    h1{font-size:clamp(38px,5vw,64px);line-height:1.15;letter-spacing:-2px}
    h2{font-size:clamp(27px,3vw,40px);line-height:1.25;letter-spacing:-1px}
    h3{font-size:20px;line-height:1.4}
    .hero{
      padding:70px 0 84px;background:#fff;position:relative;
      background-image:linear-gradient(90deg,rgba(255,255,255,.98) 0%,rgba(255,255,255,.94) 52%,rgba(255,255,255,.2) 100%),url("/assets/images/backpic/back-2.webp");
      background-position:center;background-size:cover;
    }
    .hero-inner{max-width:900px;margin:auto;text-align:center;position:relative;z-index:1}
    .crumbs{font-size:13px;color:var(--muted);margin-bottom:28px}
    .crumbs a{color:var(--blue)}
    .hero h1{margin-bottom:19px}
    .hero-copy{max-width:700px;margin:0 auto;color:#64748b;font-size:17px;line-height:1.9}
    .hero-search{
      max-width:650px;margin:30px auto 18px;background:#fff;padding:7px;
      border:1px solid #dce8f7;border-radius:16px;display:flex;box-shadow:var(--shadow-sm);
    }
    .hero-search input{flex:1;border:0;outline:0;padding:12px 15px;color:var(--ink);background:transparent}
    .hero-search button{padding:12px 24px;border-radius:11px;background:var(--blue);color:#fff;font-weight:700}
    .hero-search button:hover{background:var(--blue-deep)}
    .quick-links{display:flex;justify-content:center;gap:9px;flex-wrap:wrap}
    .quick-links a,.tag{
      display:inline-flex;align-items:center;padding:7px 12px;border:1px solid #dbe7f5;
      background:rgba(255,255,255,.86);border-radius:30px;color:#5d6e87;font-size:12px;
      transition:var(--ease);
    }
    .quick-links a:hover,.tag:hover{color:var(--blue);border-color:#9fc8f7;transform:translateY(-2px)}
    .metrics{padding:30px 0 0;background:#fff}
    .metrics-grid{
      display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
      border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-sm);
    }
    .metric{background:#fff;padding:25px 26px;position:relative}
    .metric:before{content:"";position:absolute;left:0;top:0;width:4px;height:100%;background:var(--blue)}
    .metric:nth-child(2):before{background:var(--cyan)}
    .metric:nth-child(3):before{background:var(--green)}
    .metric:nth-child(4):before{background:var(--orange)}
    .metric strong{display:block;font-size:29px;letter-spacing:-1px;margin-bottom:3px}
    .metric span{color:var(--muted);font-size:13px}
    .service-section{background:#fff}
    .service-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:58px;align-items:start}
    .service-intro{padding-top:10px}
    .service-intro p{color:var(--muted);line-height:1.9;margin:17px 0 24px}
    .service-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .service-card{
      background:#fff;border:1px solid var(--line);border-radius:16px;padding:23px;
      box-shadow:var(--shadow-sm);transition:var(--ease);
    }
    .service-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .service-no{color:var(--blue);font-size:12px;font-weight:800;margin-bottom:18px}
    .service-card p{color:var(--muted);font-size:13px;line-height:1.75;margin-top:9px}
    .feature-band{background:#eef5fc}
    .feature-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
    .feature-image{border-radius:24px;overflow:hidden;box-shadow:var(--shadow);position:relative}
    .feature-image img{width:100%;height:380px;object-fit:cover}
    .image-caption{position:absolute;left:20px;bottom:18px;padding:9px 13px;border-radius:10px;background:rgba(10,63,152,.86);color:#fff;font-size:12px}
    .feature-copy p{color:var(--muted);margin:16px 0 25px;line-height:1.9}
    .check-list{list-style:none;display:grid;gap:14px}
    .check-list li{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:#425571}
    .check-list li:before{
      content:"";flex:0 0 22px;height:22px;border-radius:7px;background:#dff7ed;
      box-shadow:inset 0 0 0 6px #dff7ed;outline:2px solid #8bdfbb;margin-top:3px;
    }
    .process{background:#fff}
    .process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
    .process-step{padding:27px 24px 10px;border-right:1px solid var(--line);position:relative}
    .process-step:last-child{border-right:0}
    .process-step:before{content:"";position:absolute;top:-5px;left:24px;width:9px;height:9px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 5px #e6f1ff}
    .process-step em{font-style:normal;color:#9aa8bc;font-size:12px;font-weight:800}
    .process-step h3{margin:13px 0 8px}
    .process-step p{color:var(--muted);font-size:13px;line-height:1.8}
    .compare{background:#f7faff}
    .compare-box{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow-sm)}
    .compare-head,.compare-item{display:grid;grid-template-columns:1.4fr .85fr .85fr .85fr;align-items:center}
    .compare-head{padding:16px 20px;background:#edf5ff;color:#55708f;font-size:12px;font-weight:800}
    .compare-head span:not(:first-child),.compare-item span:not(:first-child){text-align:center}
    .compare-item{padding:17px 20px;border-top:1px solid var(--line);font-size:14px}
    .compare-item span:not(:first-child){color:#526781}
    .compare-item strong{font-size:14px}
    .yes{color:var(--green)!important;font-weight:800}
    .scenarios{background:#fff}
    .scenario-layout{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .scenario-card{min-height:210px;border-radius:20px;padding:27px;position:relative;overflow:hidden;background:#102e67;color:#fff}
    .scenario-card:nth-child(2){background:#eaf4ff;color:var(--ink)}
    .scenario-card:nth-child(3){background:#e9faf4;color:var(--ink)}
    .scenario-card:nth-child(4){background:#fff3e8;color:var(--ink)}
    .scenario-card h3{margin:14px 0 9px}
    .scenario-card p{font-size:13px;line-height:1.8;max-width:390px;opacity:.82}
    .scenario-icon{font-size:25px}
    .scenario-card .mini-link{position:absolute;right:25px;bottom:24px;color:var(--blue);font-weight:700;font-size:13px}
    .updates{background:#f7faff}
    .update-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:45px}
    .update-list{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}
    .update-item{display:grid;grid-template-columns:90px 1fr 86px;gap:18px;align-items:center;padding:19px 22px;border-bottom:1px solid var(--line)}
    .update-item:last-child{border-bottom:0}
    .update-date{color:var(--blue);font-weight:800;font-size:13px}
    .update-item h3{font-size:15px}
    .update-item p{font-size:12px;color:var(--muted);margin-top:3px}
    .text-link{color:var(--blue);font-size:12px;font-weight:700;white-space:nowrap}
    .notice{padding:26px;border-radius:20px;background:#102e67;color:#fff;box-shadow:var(--shadow)}
    .notice h3{font-size:23px;margin-bottom:13px}
    .notice p{color:#c6d8f4;font-size:13px;line-height:1.9}
    .notice .outline-btn{margin-top:22px;background:transparent;border-color:#7ea7dd;color:#fff}
    .faq{background:#fff}
    .faq-grid{max-width:900px;margin:auto;display:grid;gap:12px}
    .faq-item{border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden}
    .faq-question{
      width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;
      background:#fff;padding:19px 22px;color:var(--ink);font-weight:700;
    }
    .faq-question span:last-child{color:var(--blue);font-size:20px;transition:var(--ease)}
    .faq-answer{display:none;padding:0 22px 19px;color:var(--muted);font-size:14px;line-height:1.9}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta{
      padding:64px 0;background:linear-gradient(110deg,#0a3f98,#1167d8);
      color:#fff;position:relative;overflow:hidden;
    }
    .cta:after{content:"";position:absolute;width:320px;height:320px;border:1px solid rgba(255,255,255,.18);border-radius:50%;right:8%;top:-150px}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px;position:relative;z-index:1}
    .cta h2{max-width:650px}
    .cta p{color:#cfe1ff;margin-top:10px}
    .cta .primary-btn{background:#fff;color:var(--blue)}
    .cta .primary-btn:hover{background:#e8f5ff}
    .footer{background:#0e2346;color:#fff;padding:46px 5vw 24px}
    .footer-top{display:flex;justify-content:space-between;gap:40px;max-width:1180px;margin:auto}
    .footer-brand{max-width:330px}
    .footer-brand strong{font-size:21px}
    .footer-brand p{color:#a9bad4;font-size:13px;line-height:1.8;margin-top:12px}
    .footer-links{display:grid;grid-template-columns:repeat(3,auto);gap:10px 30px;align-content:start}
    .footer-links a{color:#c4d2e6;font-size:13px;transition:var(--ease)}
    .footer-links a:hover{color:#fff}
    .footer-bottom{max-width:1180px;margin:35px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.13);display:flex;flex-wrap:wrap;gap:12px 28px;color:#8da2c1;font-size:11px}
    @media(max-width:1100px){
      .side-nav{width:220px}.main-wrap{margin-left:220px}
      .container{width:min(100% - 48px,1050px)}
      .hero:after{display:none}.hero-inner{max-width:820px}
      .feature-layout,.update-layout{gap:30px}
    }
    @media(max-width:800px){
      .side-nav{transform:translateX(-100%);transition:var(--ease);box-shadow:var(--shadow)}
      .side-nav.open{transform:translateX(0)}
      .main-wrap{margin-left:0}
      .mobile-menu{display:block}
      .topbar{padding:0 20px;height:66px}
      .topbar-note{display:none}
      .search{width:min(48vw,250px)}
      section{padding:62px 0}
      .container{width:calc(100% - 38px)}
      .metrics-grid{grid-template-columns:repeat(2,1fr)}
      .service-layout,.feature-layout,.update-layout{grid-template-columns:1fr}
      .feature-image{order:2}.feature-copy{order:1}
      .process-grid{grid-template-columns:repeat(2,1fr);border-top:0;gap:1px;background:var(--line)}
      .process-step{background:#fff;border:0;border-top:1px solid var(--line)}
      .scenario-layout{grid-template-columns:1fr}
      .cta-inner{align-items:flex-start;flex-direction:column}
      .footer-top{flex-direction:column}
      .footer-links{grid-template-columns:repeat(2,auto)}
    }
    @media(max-width:520px){
      h1{font-size:35px;letter-spacing:-1px}
      h2{font-size:29px}
      .topbar .search{display:none}
      .hero{padding:45px 0 55px}
      .hero-copy{font-size:15px}
      .hero-search{display:block;background:transparent;border:0;box-shadow:none;padding:0}
      .hero-search input{width:100%;height:48px;background:#fff;border:1px solid #dce8f7;border-radius:12px;margin-bottom:9px}
      .hero-search button{width:100%}
      .quick-links{justify-content:flex-start}
      .metrics-grid{grid-template-columns:1fr 1fr}
      .metric{padding:19px 15px}
      .metric strong{font-size:23px}
      .service-grid{grid-template-columns:1fr}
      .process-grid{grid-template-columns:1fr}
      .compare-box{overflow-x:auto}
      .compare-head,.compare-item{min-width:570px}
      .update-item{grid-template-columns:1fr;gap:5px}
      .update-item .text-link{display:inline-block;margin-top:4px}
      .footer{padding-left:20px;padding-right:20px}
      .footer-links{grid-template-columns:1fr 1fr;gap:9px 18px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-bottom:8px}
    }

/* roulang page: category3 */
:root{
      --blue:#1167d8;
      --blue-deep:#0a3f98;
      --cyan:#16b9e7;
      --ink:#15243d;
      --muted:#71809a;
      --paper:#f5f8fc;
      --white:#fff;
      --line:#e4eaf2;
      --green:#1bb87a;
      --orange:#ff9b45;
      --radius:20px;
      --radius-sm:12px;
      --shadow:0 18px 50px rgba(26,69,126,.1);
      --shadow-sm:0 8px 24px rgba(25,66,119,.08);
      --ease:all .28s ease
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    h1,h2,h3,h4,p{margin-top:0}
    h1,h2,h3,h4{line-height:1.25;letter-spacing:-.03em}
    h1{font-size:clamp(34px,4.3vw,62px);margin-bottom:20px}
    h2{font-size:clamp(27px,3vw,42px);margin-bottom:14px}
    h3{font-size:20px;margin-bottom:10px}
    .container{width:min(1180px,calc(100% - 72px));margin:auto}
    .side-nav{position:fixed;z-index:30;left:0;top:0;bottom:0;width:248px;background:#fff;border-right:1px solid var(--line);padding:28px 20px;display:flex;flex-direction:column}
    .brand{display:flex;align-items:center;gap:12px;padding:4px 10px 30px}
    .brand-mark{width:40px;height:40px;border-radius:13px;background:linear-gradient(145deg,var(--blue),var(--cyan));color:#fff;display:grid;place-items:center;font-size:20px;font-weight:800;box-shadow:0 8px 18px rgba(17,103,216,.23)}
    .brand strong{font-size:20px;letter-spacing:-.5px}
    .brand small{display:block;color:var(--muted);font-size:10px;line-height:1.2}
    .nav-label{padding:0 12px 10px;color:#a1adbf;font-size:11px;letter-spacing:1.5px}
    .nav-list{list-style:none;padding:0;margin:0;display:grid;gap:5px}
    .nav-list a{display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:12px;color:#5c6c85;transition:var(--ease);font-size:14px}
    .nav-list a:hover,.nav-list a.active{background:#eaf3ff;color:var(--blue);font-weight:700}
    .nav-icon{width:25px;height:25px;border-radius:8px;background:#f1f5fa;display:grid;place-items:center;font-size:12px}
    .nav-list a.active .nav-icon{background:var(--blue);color:#fff}
    .nav-bottom{margin-top:auto;padding:18px 12px 0;border-top:1px solid var(--line)}
    .nav-bottom p{font-size:12px;color:var(--muted);line-height:1.6;margin:0}
    .main-wrap{margin-left:248px}
    .topbar{height:72px;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(228,234,242,.8);display:flex;align-items:center;justify-content:space-between;padding:0 5vw;position:sticky;top:0;z-index:20}
    .search{height:40px;width:220px;background:#f5f7fb;border:1px solid transparent;border-radius:12px;display:flex;align-items:center;padding:0 12px;gap:8px;color:var(--muted)}
    .search input{border:0;background:transparent;outline:0;width:100%;font-size:13px;color:var(--ink)}
    .search:focus-within{border-color:#a9d4ff;background:#fff}
    .top-note{font-size:13px;color:var(--muted)}
    .outline-btn,.primary-btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;border-radius:12px;padding:11px 18px;font-weight:700;font-size:14px;transition:var(--ease)}
    .outline-btn{color:var(--blue);border:1px solid #bdd7fb;background:#fff}
    .outline-btn:hover{background:#edf6ff;transform:translateY(-2px)}
    .primary-btn{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(17,103,216,.22)}
    .primary-btn:hover{background:var(--blue-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(17,103,216,.28)}
    .primary-btn:focus,.outline-btn:focus,.search input:focus{outline:3px solid rgba(22,185,231,.28);outline-offset:3px}
    section{padding:78px 0}
    .eyebrow{color:var(--blue);font-weight:800;font-size:12px;letter-spacing:1.8px;margin-bottom:12px}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section-head p{max-width:570px;color:var(--muted);font-size:15px;margin-bottom:0}
    .hero{padding:68px 0 74px;background:#fff;position:relative;overflow:hidden}
    .hero:after{content:"";position:absolute;right:-100px;top:0;width:48%;height:100%;background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;clip-path:polygon(22% 0,100% 0,100% 100%,0 100%);opacity:.9}
    .hero-content{position:relative;z-index:2;min-height:430px;display:flex;align-items:center}
    .hero-copy{width:59%;padding:24px 0}
    .hero-copy>p{max-width:650px;color:#64748b;font-size:17px;line-height:1.9;margin-bottom:28px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px}
    .hero-points{display:flex;gap:24px;flex-wrap:wrap}
    .hero-point{display:flex;align-items:center;gap:8px;color:#52647e;font-size:13px}
    .hero-point b{width:22px;height:22px;border-radius:7px;background:#e3f0ff;color:var(--blue);display:grid;place-items:center;font-size:12px}
    .hero-panel{position:absolute;z-index:3;right:7%;bottom:22px;width:350px;background:rgba(255,255,255,.96);border:1px solid rgba(255,255,255,.85);padding:22px;border-radius:20px;box-shadow:0 22px 55px rgba(13,53,106,.22)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}
    .live-badge{font-size:11px;color:#118d60;background:#e5f9f0;border-radius:20px;padding:4px 9px;font-weight:700}
    .panel-caption{font-size:12px;color:var(--muted)}
    .score-row{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);gap:10px}
    .team{text-align:center;font-weight:700;font-size:13px}
    .team em{display:block;font-size:24px;font-style:normal;margin-bottom:2px}
    .score{font-size:27px;font-weight:800;color:var(--blue)}
    .panel-foot{display:flex;justify-content:space-between;padding-top:14px;color:var(--muted);font-size:12px}
    .metric-section{padding-top:48px;background:#fff}
    .metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}
    .metric{background:#fff;padding:25px 23px}
    .metric small{display:block;color:var(--muted);font-size:12px;margin-bottom:9px}
    .metric strong{font-size:32px;line-height:1;color:var(--ink)}
    .metric span{display:block;color:var(--green);font-size:12px;margin-top:10px}
    .light-section{background:#eef5fc}
    .matrix-grid{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:18px}
    .matrix-card,.info-card,.faq-item,.flow-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:24px;transition:var(--ease)}
    .matrix-card:hover,.info-card:hover,.flow-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:#c9def8}
    .matrix-card:nth-child(2){background:#123f88;color:#fff}
    .matrix-card:nth-child(2) p,.matrix-card:nth-child(2) li{color:#cbdcf7}
    .card-icon{width:42px;height:42px;border-radius:13px;background:#e9f3ff;color:var(--blue);display:grid;place-items:center;font-size:20px;margin-bottom:18px}
    .matrix-card:nth-child(2) .card-icon{background:rgba(255,255,255,.15);color:#fff}
    .matrix-card p,.info-card p{color:var(--muted);font-size:14px;margin-bottom:16px}
    .matrix-card ul{list-style:none;padding:0;margin:0;display:grid;gap:9px;color:#4e627e;font-size:13px}
    .matrix-card li:before{content:"✓";color:var(--green);font-weight:800;margin-right:8px}
    .matrix-card:nth-child(2) li:before{color:#71e4bc}
    .split-layout{display:grid;grid-template-columns:.92fr 1.08fr;gap:58px;align-items:center}
    .feature-image{border-radius:24px;overflow:hidden;box-shadow:var(--shadow);position:relative}
    .feature-image img{width:100%;height:390px;object-fit:cover}
    .image-label{position:absolute;left:20px;bottom:18px;background:rgba(13,49,101,.84);color:#fff;padding:9px 13px;border-radius:10px;font-size:12px}
    .feature-copy p{color:var(--muted);line-height:1.9;margin:15px 0 23px}
    .check-list{list-style:none;padding:0;margin:0;display:grid;gap:14px}
    .check-list li{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:#425571}
    .check-list li:before{content:"✓";flex:0 0 22px;height:22px;border-radius:7px;background:#dff7ed;color:var(--green);display:grid;place-items:center;font-weight:800}
    .status-board{display:grid;grid-template-columns:1.3fr .7fr;gap:20px}
    .board-main{background:#fff;border:1px solid var(--line);border-radius:18px;padding:25px}
    .board-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
    .board-title span{font-size:12px;color:var(--muted)}
    .status-list{display:grid;gap:0}
    .status-row{display:grid;grid-template-columns:1.3fr .8fr .8fr .7fr;gap:12px;align-items:center;padding:15px 0;border-top:1px solid var(--line);font-size:13px}
    .status-row:first-child{border-top:0}
    .status-row small{color:var(--muted)}
    .state{display:inline-flex;width:max-content;padding:4px 9px;border-radius:20px;font-size:11px;font-weight:700}
    .state.ready{background:#e5f9f0;color:#138e60}
    .state.watch{background:#fff2e5;color:#bd6d20}
    .state.rest{background:#eef1f6;color:#71809a}
    .side-stat{background:#0f4b9f;color:#fff;border-radius:18px;padding:26px;display:flex;flex-direction:column;justify-content:space-between;min-height:270px}
    .side-stat p{color:#c8dcf8;font-size:13px}
    .side-stat strong{font-size:48px;line-height:1}
    .side-stat small{color:#b9d2f2}
    .comparison{background:#fff}
    .compare-box{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff}
    .compare-head,.compare-item{display:grid;grid-template-columns:1.5fr .8fr .8fr .8fr;align-items:center}
    .compare-head{background:#f4f7fb;padding:14px 20px;color:var(--muted);font-size:12px}
    .compare-item{padding:17px 20px;border-top:1px solid var(--line);font-size:14px}
    .compare-item span:not(:first-child),.compare-head span:not(:first-child){text-align:center}
    .compare-item strong{font-size:14px}
    .up{color:var(--green);font-weight:700}
    .timeline-section{background:#f7faff}
    .flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .flow-card{position:relative}
    .flow-card:not(:last-child):after{content:"→";position:absolute;right:-19px;top:42px;color:#90b9e9;font-size:22px;z-index:2}
    .step-no{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:10px;background:#e6f1ff;color:var(--blue);font-weight:800;margin-bottom:17px}
    .flow-card p{color:var(--muted);font-size:13px;margin:0}
    .insight-layout{display:grid;grid-template-columns:1.12fr .88fr;gap:30px}
    .insight-main{background:#123f88;border-radius:22px;padding:31px;color:#fff;min-height:310px;position:relative;overflow:hidden}
    .insight-main:after{content:"";position:absolute;right:-70px;bottom:-90px;width:260px;height:260px;border:45px solid rgba(255,255,255,.08);border-radius:50%}
    .insight-main p{max-width:590px;color:#cfe0fa;line-height:1.9}
    .insight-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
    .tag{display:inline-flex;padding:6px 11px;background:#eaf3ff;border-radius:20px;color:var(--blue);font-size:12px;font-weight:700}
    .insight-main .tag{background:rgba(255,255,255,.13);color:#fff}
    .insight-side{display:grid;grid-template-columns:1fr 1fr;gap:15px}
    .info-card strong{display:block;font-size:28px;color:var(--blue);margin:4px 0 7px}
    .info-card small{color:var(--muted);font-size:12px}
    .news-section{background:#fff}
    .news-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:30px}
    .news-feature{border-radius:20px;overflow:hidden;background:#f2f7fd;border:1px solid var(--line)}
    .news-feature img{width:100%;height:240px;object-fit:cover}
    .news-feature-content{padding:24px}
    .date{font-size:12px;color:var(--blue);font-weight:700}
    .news-feature h3{font-size:25px;margin:10px 0}
    .news-feature p,.news-item p{color:var(--muted);font-size:13px;line-height:1.8}
    .news-items{display:grid;gap:12px}
    .news-item{padding:17px 19px;border:1px solid var(--line);border-radius:14px;background:#fff;transition:var(--ease)}
    .news-item:hover{border-color:#bdd7fb;box-shadow:var(--shadow-sm);transform:translateX(3px)}
    .news-item h4{font-size:16px;margin:5px 0}
    .news-item p{margin:0}
    .news-link{display:inline-flex;color:var(--blue);font-size:13px;font-weight:700;margin-top:9px}
    .faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:55px}
    .faq-intro p{color:var(--muted);line-height:1.9}
    .faq-list{display:grid;gap:11px}
    .faq-item{padding:0;overflow:hidden}
    .faq-item summary{cursor:pointer;list-style:none;padding:19px 22px;font-weight:700;position:relative;padding-right:48px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";position:absolute;right:21px;color:var(--blue);font-size:22px;top:14px}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{padding:0 22px 19px;color:var(--muted);font-size:14px;line-height:1.85}
    .cta{padding:64px 0;background:linear-gradient(110deg,#0b449d,#1474d9);color:#fff}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta h2{margin-bottom:10px}
    .cta p{color:#d5e6ff;margin:0;max-width:650px}
    .cta .primary-btn{background:#fff;color:var(--blue)}
    .cta .primary-btn:hover{background:#e9f4ff}
    .footer{background:#0e203d;color:#fff;padding:48px 5vw 24px}
    .footer-top{display:flex;justify-content:space-between;gap:50px;max-width:1180px;margin:0 auto 35px}
    .footer-brand{max-width:360px}
    .footer-brand strong{font-size:22px}
    .footer-brand p{color:#9fb2d0;font-size:13px;line-height:1.8;margin:12px 0 0}
    .footer-links{display:grid;grid-template-columns:repeat(3,max-content);gap:12px 28px;align-content:start}
    .footer-links a{color:#b8c7dd;font-size:13px;transition:var(--ease)}
    .footer-links a:hover{color:#fff}
    .footer-bottom{max-width:1180px;margin:auto;border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;flex-wrap:wrap;gap:13px 28px;color:#8fa4c3;font-size:12px}
    @media (max-width:1100px){
      .hero-panel{right:3%}
      .matrix-grid{grid-template-columns:repeat(2,1fr)}
      .matrix-card:last-child{grid-column:span 2}
      .container{width:min(100% - 48px,1000px)}
    }
    @media (max-width:820px){
      .side-nav{position:relative;width:100%;height:auto;padding:15px 20px;display:block}
      .brand{padding:4px 0 14px}
      .nav-label{display:none}
      .nav-list{display:flex;overflow-x:auto;padding-bottom:3px}
      .nav-list a{white-space:nowrap}
      .nav-bottom{display:none}
      .main-wrap{margin-left:0}
      .topbar{padding:0 24px;height:64px}
      .hero{padding:48px 0 35px}
      .hero:after{width:100%;height:310px;top:auto;bottom:0;opacity:.18;clip-path:none}
      .hero-content{min-height:auto;display:block}
      .hero-copy{width:100%;padding:15px 0 190px}
      .hero-panel{right:auto;left:0;bottom:20px;width:min(350px,100%)}
      .metrics-grid{grid-template-columns:repeat(2,1fr)}
      .split-layout,.status-board,.insight-layout,.news-grid,.faq-layout{grid-template-columns:1fr;gap:28px}
      .flow-grid{grid-template-columns:repeat(2,1fr)}
      .flow-card:not(:last-child):after{display:none}
      .footer-top{display:block}
      .footer-links{margin-top:25px}
    }
    @media (max-width:520px){
      .container{width:calc(100% - 34px)}
      .topbar{padding:0 17px}
      .top-note{display:none}
      .search{width:175px}
      section{padding:58px 0}
      .section-head{display:block}
      .section-head p{margin-top:12px}
      .hero-copy>p{font-size:15px}
      .hero-actions .primary-btn,.hero-actions .outline-btn{width:100%}
      .hero-points{display:grid;gap:10px}
      .metrics-grid,.matrix-grid,.flow-grid,.insight-side{grid-template-columns:1fr}
      .matrix-card:last-child{grid-column:auto}
      .feature-image img{height:270px}
      .status-row{grid-template-columns:1.2fr .8fr .7fr}
      .status-row span:nth-child(3){display:none}
      .compare-head,.compare-item{grid-template-columns:1.25fr .75fr .75fr .75fr;padding-left:12px;padding-right:12px;font-size:12px}
      .news-feature img{height:190px}
      .footer{padding-left:17px;padding-right:17px}
      .footer-links{grid-template-columns:repeat(2,max-content);gap:11px 18px}
    }

/* roulang page: category5 */
:root{
      --blue:#1167d8;--blue-deep:#0a3f98;--cyan:#16b9e7;--ink:#15243d;
      --muted:#71809a;--paper:#f5f8fc;--white:#fff;--line:#e4eaf2;
      --green:#1bb87a;--orange:#ff9b45;--radius:20px;--radius-sm:12px;
      --shadow:0 18px 50px rgba(26,69,126,.10);--shadow-sm:0 8px 24px rgba(25,66,119,.08);
      --ease:all .28s ease
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none} img{display:block;max-width:100%} button,input{font:inherit} button{cursor:pointer;border:0}
    .side-nav{position:fixed;z-index:30;left:0;top:0;bottom:0;width:248px;background:#fff;border-right:1px solid var(--line);padding:28px 20px;display:flex;flex-direction:column}
    .brand{display:flex;align-items:center;gap:12px;padding:4px 10px 30px}.brand-mark{width:40px;height:40px;border-radius:13px;background:linear-gradient(145deg,var(--blue),var(--cyan));color:#fff;display:grid;place-items:center;font-size:20px;font-weight:800;box-shadow:0 8px 18px rgba(17,103,216,.23)}.brand strong{font-size:20px;letter-spacing:-.5px}.brand small{display:block;color:var(--muted);font-size:10px;line-height:1.2}
    .nav-label{padding:0 12px 10px;color:#a1adbf;font-size:11px;letter-spacing:1.5px}.nav-list{list-style:none;display:grid;gap:5px}.nav-list a{display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:12px;color:#5c6c85;transition:var(--ease);font-size:14px}.nav-list a:hover,.nav-list a.active{background:#eaf3ff;color:var(--blue);font-weight:700}.nav-icon{width:25px;height:25px;border-radius:8px;background:#f1f5fa;display:grid;place-items:center;font-size:12px}.nav-list a.active .nav-icon{background:var(--blue);color:#fff}
    .nav-bottom{margin-top:auto;padding:18px 12px 0;border-top:1px solid var(--line)}.nav-bottom p{font-size:12px;color:var(--muted);line-height:1.6}
    .main-wrap{margin-left:248px}.topbar{height:72px;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(228,234,242,.8);display:flex;align-items:center;justify-content:space-between;padding:0 5vw;position:sticky;top:0;z-index:20}.search{height:40px;width:220px;background:#f5f7fb;border:1px solid transparent;border-radius:12px;display:flex;align-items:center;padding:0 12px;gap:8px;color:var(--muted)}.search input{border:0;background:transparent;outline:0;width:100%;font-size:13px;color:var(--ink)}.search:focus-within{border-color:#a9d4ff;background:#fff}
    .outline-btn,.primary-btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;border-radius:12px;padding:11px 18px;font-weight:700;font-size:14px;transition:var(--ease)}.outline-btn{color:var(--blue);border:1px solid #bdd7fb;background:#fff}.outline-btn:hover{background:#edf6ff;transform:translateY(-2px)}.primary-btn{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(17,103,216,.22)}.primary-btn:hover{background:var(--blue-deep);transform:translateY(-2px)}.primary-btn:focus,.outline-btn:focus,input:focus{outline:3px solid rgba(22,185,231,.25)}
    .container{width:min(1180px,calc(100% - 72px));margin:auto} main{overflow:hidden} section{padding:78px 0}.eyebrow{color:var(--blue);font-weight:800;font-size:12px;letter-spacing:1.8px;margin-bottom:12px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}.section-head h2{font-size:32px;line-height:1.25;letter-spacing:-1px}.section-head p{max-width:540px;color:var(--muted)}
    .page-hero{background:#fff url("/assets/images/backpic/back-2.webp") center/cover no-repeat;position:relative;padding:68px 0 74px}.page-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#fff 8%,rgba(255,255,255,.92) 48%,rgba(255,255,255,.45))}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center}.page-hero h1{font-size:clamp(38px,5vw,64px);line-height:1.12;letter-spacing:-2px;margin-bottom:20px}.page-hero h1 span{color:var(--blue)}.lead{font-size:17px;color:#60728c;max-width:650px;line-height:1.9}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.hero-card{background:rgba(255,255,255,.95);padding:25px;border:1px solid #dfe9f5;border-radius:22px;box-shadow:var(--shadow)}.hero-card img{height:190px;width:100%;object-fit:cover;border-radius:15px;margin-bottom:18px}.mini-line{display:flex;justify-content:space-between;color:var(--muted);font-size:13px;border-top:1px solid var(--line);padding-top:13px;margin-top:13px}.mini-line strong{color:var(--ink)}
    .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}.metric{background:#fff;padding:25px 22px}.metric b{display:block;font-size:30px;color:var(--blue);line-height:1.2}.metric span{color:var(--muted);font-size:13px}
    .matrix{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}.feature-card,.info-card,.scene-card,.process-card,.faq-item,.form-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}.feature-card{overflow:hidden}.feature-card img{height:260px;width:100%;object-fit:cover}.feature-content{padding:25px}.feature-content p,.info-card p,.scene-card p,.process-card p{color:var(--muted);line-height:1.8;margin-top:10px}.info-stack{display:grid;gap:20px}.info-card{padding:24px}.icon{width:42px;height:42px;border-radius:13px;background:#eaf3ff;color:var(--blue);display:grid;place-items:center;font-weight:800;margin-bottom:12px}
    .dark-band{background:#0f397d;color:#fff}.dark-band .eyebrow{color:#7de1f6}.dark-band .section-head p{color:#b9cbe3}.result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.result{padding:25px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);border-radius:18px}.result b{font-size:25px;color:#fff}.result p{color:#c5d5e9;margin-top:8px}
    .scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.scene-card{padding:25px}.scene-card h3{font-size:19px}.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.process-card{padding:22px;position:relative}.step{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:1px}.process-card h3{margin-top:10px;font-size:17px}
    .data-panel{display:grid;grid-template-columns:1fr 1.15fr;gap:35px;align-items:center}.data-panel img{height:330px;width:100%;object-fit:cover;border-radius:22px;box-shadow:var(--shadow)}.check-list{list-style:none;display:grid;gap:14px;margin-top:20px}.check-list li{display:flex;gap:11px;color:#50627b}.check-list li:before{content:"✓";width:22px;height:22px;flex:none;border-radius:7px;background:#dff7ed;color:var(--green);font-weight:800;text-align:center;line-height:22px}
    .faq-list{display:grid;gap:12px;max-width:900px}.faq-item{padding:0 22px}.faq-item summary{padding:19px 0;font-weight:700;cursor:pointer;list-style:none}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"＋";float:right;color:var(--blue);font-size:20px}.faq-item[open] summary:after{content:"－"}.faq-item p{color:var(--muted);padding:0 0 20px;line-height:1.8}
    .cta{padding:58px 0;background:#eaf4ff}.cta-box{display:flex;justify-content:space-between;align-items:center;gap:25px}.cta h2{font-size:31px;line-height:1.3}.cta p{color:var(--muted);margin-top:8px}.form-box{padding:20px;display:flex;gap:10px;min-width:390px}.form-box input{min-width:0;flex:1;border:1px solid var(--line);border-radius:10px;padding:10px 12px;outline:0}.form-tip{font-size:12px;color:var(--green);margin-top:9px;display:none}
    .footer{background:#fff;border-top:1px solid var(--line);padding:42px 5vw 25px}.footer-top{display:flex;justify-content:space-between;gap:45px;max-width:1180px;margin:auto}.footer-brand{max-width:360px}.footer-brand strong{font-size:22px}.footer-brand p{color:var(--muted);font-size:13px;margin-top:9px}.footer-links{display:grid;grid-template-columns:repeat(3,auto);gap:12px 28px;color:#60718a;font-size:13px}.footer-links a:hover{color:var(--blue)}.footer-bottom{max-width:1180px;margin:30px auto 0;padding-top:18px;border-top:1px solid var(--line);display:flex;gap:20px;flex-wrap:wrap;color:#94a1b3;font-size:12px}
    @media(max-width:1024px){.side-nav{width:215px}.main-wrap{margin-left:215px}.hero-grid,.matrix,.data-panel{grid-template-columns:1fr}.hero-card{max-width:520px}.process-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.side-nav{position:relative;width:100%;height:auto;padding:15px 18px;display:block}.brand{padding:0 4px 14px}.nav-label{display:none}.nav-list{display:flex;overflow-x:auto;gap:4px;padding-bottom:2px}.nav-list a{white-space:nowrap;padding:8px 10px}.nav-bottom{display:none}.main-wrap{margin-left:0}.topbar{height:62px;padding:0 20px}.search{width:150px}.container{width:min(100% - 38px,640px)}section{padding:58px 0}.page-hero{padding:55px 0}.page-hero h1{font-size:42px}.metrics{grid-template-columns:repeat(2,1fr)}.scene-grid,.result-grid{grid-template-columns:1fr}.section-head{display:block}.section-head h2{font-size:27px;margin-bottom:10px}.cta-box{display:block}.form-box{margin-top:22px;min-width:0}.footer-top{display:block}.footer-links{margin-top:25px;grid-template-columns:repeat(2,1fr)}}
    @media(max-width:520px){.topbar{gap:10px}.topbar .outline-btn{padding:9px 11px;font-size:12px}.search{width:125px}.page-hero h1{font-size:36px}.hero-actions a{width:100%}.metrics{grid-template-columns:1fr 1fr}.metric{padding:18px 14px}.metric b{font-size:24px}.process-grid{grid-template-columns:1fr}.form-box{display:block}.form-box button,.form-box input{width:100%;margin-bottom:9px}.footer-links{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:7px}}

/* roulang page: category4 */
:root{
      --blue:#1167d8;
      --blue-deep:#0a3f98;
      --cyan:#16b9e7;
      --ink:#15243d;
      --muted:#71809a;
      --paper:#f5f8fc;
      --white:#fff;
      --line:#e4eaf2;
      --green:#1bb87a;
      --orange:#ff9b45;
      --radius:20px;
      --radius-sm:12px;
      --shadow:0 18px 50px rgba(26,69,126,.10);
      --shadow-sm:0 8px 24px rgba(25,66,119,.08);
      --ease:all .28s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    h1,h2,h3,h4{line-height:1.25;letter-spacing:-.5px}
    h1{font-size:clamp(36px,4.5vw,62px)}
    h2{font-size:clamp(27px,3vw,40px)}
    h3{font-size:20px}
    .side-nav{position:fixed;z-index:30;left:0;top:0;bottom:0;width:248px;background:#fff;border-right:1px solid var(--line);padding:28px 20px;display:flex;flex-direction:column}
    .brand{display:flex;align-items:center;gap:12px;padding:4px 10px 30px}
    .brand-mark{width:40px;height:40px;border-radius:13px;background:linear-gradient(145deg,var(--blue),var(--cyan));color:#fff;display:grid;place-items:center;font-size:20px;font-weight:800;box-shadow:0 8px 18px rgba(17,103,216,.23)}
    .brand strong{font-size:20px;letter-spacing:-.5px}
    .brand small{display:block;color:var(--muted);font-size:10px;line-height:1.2;margin-top:1px}
    .nav-label{padding:0 12px 10px;color:#a1adbf;font-size:11px;letter-spacing:1.5px}
    .nav-list{list-style:none;display:grid;gap:5px}
    .nav-list a{display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:12px;color:#5c6c85;transition:var(--ease);font-size:14px}
    .nav-list a:hover,.nav-list a.active{background:#eaf3ff;color:var(--blue);font-weight:700}
    .nav-icon{width:25px;height:25px;border-radius:8px;background:#f1f5fa;display:grid;place-items:center;font-size:12px}
    .nav-list a.active .nav-icon{background:var(--blue);color:#fff}
    .nav-bottom{margin-top:auto;padding:18px 12px 0;border-top:1px solid var(--line)}
    .nav-bottom p{font-size:12px;color:var(--muted);line-height:1.6}
    .main-wrap{margin-left:248px}
    .topbar{height:72px;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(228,234,242,.8);display:flex;align-items:center;justify-content:space-between;padding:0 5vw;position:sticky;top:0;z-index:20}
    .search{height:40px;width:220px;background:#f5f7fb;border:1px solid transparent;border-radius:12px;display:flex;align-items:center;padding:0 12px;gap:8px;color:var(--muted)}
    .search input{border:0;background:transparent;outline:0;width:100%;font-size:13px;color:var(--ink)}
    .search:focus-within{border-color:#a9d4ff;background:#fff}
    .top-actions{display:flex;align-items:center;gap:12px}
    .top-note{font-size:13px;color:var(--muted)}
    .outline-btn,.primary-btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;border-radius:12px;padding:11px 18px;font-weight:700;font-size:14px;transition:var(--ease)}
    .outline-btn{color:var(--blue);border:1px solid #bdd7fb;background:#fff}
    .outline-btn:hover{background:#edf6ff;transform:translateY(-2px)}
    .primary-btn{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(17,103,216,.22)}
    .primary-btn:hover{background:var(--blue-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(17,103,216,.28)}
    .primary-btn:focus,.outline-btn:focus,.search input:focus{outline:3px solid rgba(22,185,231,.28);outline-offset:2px}
    .container{width:min(1180px,calc(100% - 72px));margin:auto}
    main{overflow:hidden}
    section{padding:82px 0}
    .eyebrow{color:var(--blue);font-weight:800;font-size:12px;letter-spacing:1.8px;margin-bottom:12px}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section-head p{max-width:560px;color:var(--muted);font-size:15px}
    .page-hero{padding:70px 0 82px;background:#fff;position:relative;overflow:hidden}
    .page-hero:before{content:"";position:absolute;right:-8%;top:-18%;width:52%;height:145%;background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;opacity:.16;transform:rotate(-4deg)}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center}
    .hero-copy h1{max-width:700px;margin-bottom:20px}
    .hero-copy>p{max-width:650px;color:#64748b;font-size:17px;line-height:1.9;margin-bottom:28px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:26px}
    .hero-points{display:flex;gap:24px;flex-wrap:wrap;color:#52647e;font-size:13px}
    .hero-points span{display:flex;gap:7px;align-items:center}
    .hero-points b{color:var(--green);font-size:18px}
    .support-panel{background:#f7fbff;border:1px solid #dceaf8;border-radius:24px;padding:26px;box-shadow:var(--shadow)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}
    .panel-top strong{font-size:16px}
    .live-badge{font-size:11px;color:#118d60;background:#e5f9f0;border-radius:20px;padding:4px 9px;font-weight:700}
    .progress-wrap{display:flex;align-items:center;gap:24px;padding:8px 0 24px}
    .progress-ring{width:142px;height:142px;border-radius:50%;background:conic-gradient(var(--blue) 0 72%,#dce9f7 72% 100%);display:grid;place-items:center;flex:0 0 auto}
    .progress-ring:after{content:"";width:108px;height:108px;border-radius:50%;background:#fff;position:absolute}
    .progress-value{position:relative;z-index:1;text-align:center}
    .progress-value strong{display:block;color:var(--blue);font-size:28px;line-height:1}
    .progress-value small{color:var(--muted);font-size:11px}
    .progress-copy h3{font-size:18px;margin-bottom:6px}
    .progress-copy p{font-size:13px;color:var(--muted);line-height:1.7}
    .tier-list{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}
    .tier{background:#fff;border:1px solid var(--line);border-radius:12px;padding:13px 10px;transition:var(--ease)}
    .tier:hover{border-color:#9ec9f5;transform:translateY(-3px);box-shadow:var(--shadow-sm)}
    .tier strong{display:block;color:var(--blue);font-size:16px;margin-bottom:2px}
    .tier span{font-size:11px;color:var(--muted)}
    .metrics-section{padding-top:55px}
    .metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-sm)}
    .metric{background:#fff;padding:25px 24px;min-height:138px}
    .metric small{color:var(--muted);font-size:12px}
    .metric strong{display:block;font-size:33px;color:var(--blue);line-height:1.25;margin:9px 0 3px}
    .metric span{font-size:12px;color:#8491a5}
    .split-section{background:#eef5fc}
    .feature-layout{display:grid;grid-template-columns:1.02fr .98fr;gap:58px;align-items:center}
    .feature-image{border-radius:24px;overflow:hidden;box-shadow:var(--shadow);position:relative}
    .feature-image img{width:100%;height:390px;object-fit:cover}
    .image-caption{position:absolute;left:20px;right:20px;bottom:18px;background:rgba(9,46,102,.78);color:#fff;border-radius:12px;padding:12px 15px;font-size:13px}
    .feature-copy p{color:var(--muted);margin:16px 0 25px;line-height:1.9}
    .check-list{list-style:none;display:grid;gap:14px}
    .check-list li{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:#425571}
    .check-list li:before{content:"✓";flex:0 0 22px;height:22px;border-radius:7px;background:#dff7ed;color:var(--green);display:grid;place-items:center;font-weight:800;font-size:13px}
    .matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .matrix-card{border:1px solid var(--line);padding:24px;background:#fff;border-radius:17px;transition:var(--ease)}
    .matrix-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#bed8f5}
    .matrix-number{width:34px;height:34px;border-radius:10px;background:#e9f3ff;color:var(--blue);display:grid;place-items:center;font-weight:800;margin-bottom:19px}
    .matrix-card p{color:var(--muted);font-size:13px;margin-top:10px;line-height:1.8}
    .data-section{background:#fff}
    .data-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:28px;align-items:stretch}
    .insight-card{background:linear-gradient(145deg,#0a3f98,#1167d8);color:#fff;border-radius:22px;padding:29px;position:relative;overflow:hidden}
    .insight-card:after{content:"";position:absolute;width:190px;height:190px;border:1px solid rgba(255,255,255,.2);border-radius:50%;right:-45px;bottom:-65px}
    .insight-card p{color:rgba(255,255,255,.78);font-size:14px;line-height:1.9;margin:14px 0 27px}
    .mini-stat{display:flex;justify-content:space-between;border-top:1px solid rgba(255,255,255,.2);padding:15px 0;font-size:13px}
    .mini-stat strong{font-size:19px}
    .compare-box{background:#fff;border:1px solid var(--line);border-radius:22px;padding:25px;box-shadow:var(--shadow-sm)}
    .compare-head,.compare-item{display:grid;grid-template-columns:1.5fr .8fr .8fr .8fr;align-items:center}
    .compare-head{color:#96a3b5;font-size:12px;padding:0 18px 13px}
    .compare-head span:not(:first-child),.compare-item span:not(:first-child){text-align:center}
    .compare-item{padding:17px 18px;border-top:1px solid var(--line);font-size:14px}
    .compare-item strong{font-size:14px}
    .compare-item span:not(:first-child){color:#526781}
    .up{color:var(--green)!important;font-weight:700}
    .story-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
    .story-card{background:#fff;border-radius:20px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
    .story-card img{width:100%;height:248px;object-fit:cover}
    .story-body{padding:23px}
    .story-body p{color:var(--muted);font-size:14px;line-height:1.85;margin:11px 0 17px}
    .story-card.tall img{height:100%;min-height:360px}
    .story-card.tall{display:grid;grid-template-columns:.9fr 1.1fr;align-items:stretch}
    .story-card.tall .story-body{display:flex;flex-direction:column;justify-content:center}
    .tag{display:inline-flex;padding:5px 10px;border-radius:20px;background:#eaf3ff;color:var(--blue);font-size:11px;font-weight:800}
    .schedule-section{background:#f0f6fb}
    .schedule-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:30px}
    .schedule-intro{padding:15px 0}
    .schedule-intro p{color:var(--muted);line-height:1.9;margin:16px 0 22px}
    .schedule-list{background:#fff;border-radius:20px;border:1px solid var(--line);overflow:hidden}
    .schedule-item{display:grid;grid-template-columns:84px 1fr auto;align-items:center;gap:18px;padding:18px 23px;border-bottom:1px solid var(--line)}
    .schedule-item:last-child{border-bottom:0}
    .schedule-time{font-weight:800;color:var(--blue);font-size:13px}
    .schedule-item strong{display:block;font-size:14px}
    .schedule-item small{color:var(--muted);font-size:12px}
    .status{padding:5px 9px;border-radius:8px;font-size:11px;color:#63748c;background:#f1f5f9}
    .status.hot{color:#d96a22;background:#fff1e6}
    .process-section{background:#fff}
    .process-line{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
    .process-line:before{content:"";height:1px;background:#cfe0f1;position:absolute;top:22px;left:9%;right:9%}
    .process-step{position:relative;text-align:center;padding:0 15px}
    .step-dot{width:45px;height:45px;background:#eaf3ff;color:var(--blue);border:6px solid #fff;box-shadow:0 0 0 1px #cfe0f1;border-radius:50%;display:grid;place-items:center;margin:0 auto 17px;font-weight:800}
    .process-step p{color:var(--muted);font-size:13px;margin-top:8px}
    .faq-section{background:#f5f8fc}
    .faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:50px}
    .faq-intro p{color:var(--muted);line-height:1.9;margin-top:15px}
    .faq-list{display:grid;gap:11px}
    details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:17px 20px;transition:var(--ease)}
    details[open]{border-color:#afd2f6;box-shadow:var(--shadow-sm)}
    summary{cursor:pointer;font-weight:700;list-style:none;padding-right:20px;position:relative}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"＋";position:absolute;right:0;color:var(--blue);font-size:20px;top:-3px}
    details[open] summary:after{content:"－"}
    details p{color:var(--muted);font-size:14px;line-height:1.85;padding-top:12px}
    .cta-section{padding:64px 0}
    .cta-box{background:linear-gradient(120deg,#0a3f98,#1167d8);border-radius:25px;padding:43px 48px;color:#fff;display:flex;justify-content:space-between;align-items:center;gap:30px;position:relative;overflow:hidden}
    .cta-box:after{content:"";position:absolute;right:12%;top:-80px;width:240px;height:240px;border:1px solid rgba(255,255,255,.18);border-radius:50%}
    .cta-box p{color:rgba(255,255,255,.78);max-width:650px;margin-top:11px}
    .cta-box .primary-btn{background:#fff;color:var(--blue);position:relative;z-index:1}
    .cta-box .primary-btn:hover{background:#e8f5ff}
    .footer{margin-left:248px;background:#102544;color:#dbe7f6;padding:48px 5vw 22px}
    .footer-top{display:flex;justify-content:space-between;gap:50px;padding-bottom:35px;border-bottom:1px solid rgba(255,255,255,.14)}
    .footer-brand{max-width:360px}
    .footer-brand strong{font-size:21px;color:#fff}
    .footer-brand p{font-size:13px;line-height:1.8;color:#9fb1ca;margin-top:12px}
    .footer-links{display:grid;grid-template-columns:repeat(3,auto);gap:12px 26px;align-content:start}
    .footer-links a{font-size:13px;color:#b9c9dd;transition:var(--ease)}
    .footer-links a:hover{color:#fff}
    .footer-bottom{display:flex;flex-wrap:wrap;gap:12px 30px;padding-top:20px;color:#8da2bd;font-size:12px}
    @media (max-width:1100px){
      .hero-grid,.feature-layout,.data-layout,.schedule-layout,.faq-layout{grid-template-columns:1fr}
      .hero-copy{max-width:760px}
      .support-panel{max-width:620px}
      .story-grid{grid-template-columns:1fr}
      .story-card.tall{grid-template-columns:1fr 1fr}
    }
    @media (max-width:820px){
      .side-nav{position:relative;width:100%;height:auto;padding:14px 20px;display:block;border-right:0;border-bottom:1px solid var(--line)}
      .brand{padding:4px 0 14px}
      .nav-label{display:none}
      .nav-list{display:flex;overflow-x:auto;padding-bottom:3px}
      .nav-list a{white-space:nowrap;padding:9px 11px}
      .nav-bottom{display:none}
      .main-wrap{margin-left:0}
      .topbar{padding:0 24px;height:64px}
      .footer{margin-left:0}
      .container{width:min(100% - 40px,680px)}
      section{padding:62px 0}
      .metrics-grid{grid-template-columns:repeat(2,1fr)}
      .matrix-grid{grid-template-columns:repeat(2,1fr)}
      .footer-top{display:block}
      .footer-links{margin-top:25px}
      .cta-box{display:block;padding:34px 28px}
      .cta-box .primary-btn{margin-top:24px}
    }
    @media (max-width:520px){
      body{font-size:14px}
      .topbar{padding:0 20px}
      .search{width:145px}
      .top-note{display:none}
      .page-hero{padding:52px 0 58px}
      .hero-copy>p{font-size:15px}
      .hero-actions a{width:100%}
      .progress-wrap{gap:15px}
      .progress-ring{width:118px;height:118px}
      .progress-ring:after{width:88px;height:88px}
      .tier-list{grid-template-columns:1fr}
      .metrics-grid,.matrix-grid{grid-template-columns:1fr}
      .metric{min-height:auto}
      .feature-image img{height:260px}
      .story-card.tall{display:block}
      .story-card.tall img{height:230px;min-height:0}
      .schedule-item{grid-template-columns:64px 1fr;gap:10px;padding:16px}
      .schedule-item .status{grid-column:2;justify-self:start}
      .process-line{grid-template-columns:1fr 1fr;gap:28px 0}
      .process-line:before{display:none}
      .section-head{display:block}
      .section-head p{margin-top:12px}
      .footer-links{grid-template-columns:repeat(2,1fr);gap:11px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-bottom:8px}
    }

/* roulang page: category6 */
:root{
      --blue:#1167d8;--blue-deep:#0a3f98;--cyan:#16b9e7;--ink:#15243d;
      --muted:#71809a;--paper:#f5f8fc;--white:#fff;--line:#e4eaf2;
      --green:#1bb87a;--orange:#ff9b45;--radius:20px;--radius-sm:12px;
      --shadow:0 18px 50px rgba(26,69,126,.10);--shadow-sm:0 8px 24px rgba(25,66,119,.08);
      --ease:all .28s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none} img{max-width:100%;display:block} button,input{font:inherit} button{cursor:pointer;border:0}
    .side-nav{position:fixed;z-index:30;left:0;top:0;bottom:0;width:248px;background:#fff;border-right:1px solid var(--line);padding:28px 20px;display:flex;flex-direction:column}
    .brand{display:flex;align-items:center;gap:12px;padding:4px 10px 30px}
    .brand-mark{width:40px;height:40px;border-radius:13px;background:linear-gradient(145deg,var(--blue),var(--cyan));color:#fff;display:grid;place-items:center;font-size:20px;font-weight:800;box-shadow:0 8px 18px rgba(17,103,216,.23)}
    .brand strong{font-size:20px;letter-spacing:-.5px}.brand small{display:block;color:var(--muted);font-size:10px;line-height:1.2}
    .nav-label{padding:0 12px 10px;color:#a1adbf;font-size:11px;letter-spacing:1.5px}
    .nav-list{list-style:none;display:grid;gap:5px}.nav-list a{display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:12px;color:#5c6c85;transition:var(--ease);font-size:14px}
    .nav-list a:hover,.nav-list a.active{background:#eaf3ff;color:var(--blue);font-weight:700}.nav-icon{width:25px;height:25px;border-radius:8px;background:#f1f5fa;display:grid;place-items:center;font-size:12px}
    .nav-list a.active .nav-icon{background:var(--blue);color:#fff}.nav-bottom{margin-top:auto;padding:18px 12px 0;border-top:1px solid var(--line)}.nav-bottom p{font-size:12px;color:var(--muted);line-height:1.6}
    .main-wrap{margin-left:248px}.topbar{height:72px;background:rgba(255,255,255,.93);backdrop-filter:blur(16px);border-bottom:1px solid rgba(228,234,242,.8);display:flex;align-items:center;justify-content:space-between;padding:0 5vw;position:sticky;top:0;z-index:20}
    .search{height:40px;width:220px;background:#f5f7fb;border:1px solid transparent;border-radius:12px;display:flex;align-items:center;padding:0 12px;gap:8px;color:var(--muted)}.search input{border:0;background:transparent;outline:0;width:100%;font-size:13px;color:var(--ink)}.search:focus-within{border-color:#a9d4ff;background:#fff}
    .outline-btn,.primary-btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;border-radius:12px;padding:11px 18px;font-weight:700;font-size:14px;transition:var(--ease)}
    .outline-btn{color:var(--blue);border:1px solid #bdd7fb;background:#fff}.outline-btn:hover{background:#edf6ff;transform:translateY(-2px)}
    .primary-btn{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(17,103,216,.22)}.primary-btn:hover{background:var(--blue-deep);transform:translateY(-2px)}
    .container{width:min(1180px,calc(100% - 72px));margin:auto}main{overflow:hidden}section{padding:78px 0}.eyebrow{color:var(--blue);font-weight:800;font-size:12px;letter-spacing:1.8px;margin-bottom:12px}
    h1{font-size:clamp(34px,4vw,58px);line-height:1.18;letter-spacing:-2px}h2{font-size:clamp(26px,3vw,38px);line-height:1.25;letter-spacing:-1px}h3{font-size:19px;line-height:1.4}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}.section-head p{max-width:560px;color:var(--muted)}
    .inner-hero{background:#fff;position:relative;padding:56px 0 62px;overflow:hidden}.inner-hero:after{content:"";position:absolute;right:0;top:0;width:43%;height:100%;background:linear-gradient(90deg,rgba(255,255,255,.15),rgba(255,255,255,.02)),url("/assets/images/backpic/back-2.webp") center/cover;clip-path:polygon(18% 0,100% 0,100% 100%,0 100%);opacity:.9}
    .hero-copy{position:relative;z-index:2;width:61%}.hero-copy p{max-width:650px;color:#64748b;font-size:17px;line-height:1.9;margin:20px 0 26px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.crumb{color:var(--muted);font-size:13px;margin-bottom:28px}.crumb a{color:var(--blue)}
    .hero-note{position:absolute;z-index:3;right:7%;bottom:28px;background:rgba(255,255,255,.95);border:1px solid #e8eef7;border-radius:18px;padding:20px;width:270px;box-shadow:var(--shadow)}.hero-note strong{display:block;font-size:29px;color:var(--blue)}.hero-note span{color:var(--muted);font-size:13px}
    .metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-sm)}.metric{background:#fff;padding:25px 22px}.metric strong{font-size:30px;color:var(--blue);display:block}.metric span{font-size:13px;color:var(--muted)}
    .split{display:grid;grid-template-columns:1fr 1.05fr;gap:58px;align-items:center}.feature-image{border-radius:24px;overflow:hidden;box-shadow:var(--shadow)}.feature-image img{width:100%;height:365px;object-fit:cover}.feature-copy p{color:var(--muted);margin:16px 0 24px;line-height:1.9}
    .check-list{list-style:none;display:grid;gap:14px}.check-list li{display:flex;gap:12px;color:#425571}.check-list li:before{content:"✓";flex:0 0 23px;height:23px;border-radius:7px;background:#dff7ed;color:var(--green);font-weight:800;text-align:center;line-height:23px}
    .matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.matrix-card,.talk-card,.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);transition:var(--ease)}.matrix-card:hover,.talk-card:hover,.step:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .icon-box{width:42px;height:42px;border-radius:13px;background:#eaf3ff;color:var(--blue);display:grid;place-items:center;font-weight:800;margin-bottom:17px}.matrix-card p,.talk-card p,.step p{color:var(--muted);font-size:14px;margin-top:9px}
    .soft{background:#eef5fc}.talk-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}.talk-card.large{background:var(--blue);color:#fff;padding:32px}.talk-card.large p{color:#dceaff}.quote{font-size:23px;line-height:1.55;margin:18px 0 24px}.tag{display:inline-block;padding:5px 10px;border-radius:20px;background:#e5f9f0;color:#12875d;font-size:11px;font-weight:800}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.step-num{font-size:13px;color:var(--blue);font-weight:800;margin-bottom:20px}.step h3{font-size:17px}
    .topic-layout{display:grid;grid-template-columns:1fr 1fr;gap:22px}.topic-card{display:grid;grid-template-columns:145px 1fr;gap:18px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow-sm)}.topic-card img{width:145px;height:125px;object-fit:cover;border-radius:12px}.topic-card p{color:var(--muted);font-size:13px;margin-top:7px}
    .faq{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px}.faq-list{display:grid;gap:10px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 20px}.faq-item summary{cursor:pointer;list-style:none;padding:17px 0;font-weight:700}.faq-item summary::-webkit-details-marker{display:none}.faq-item p{color:var(--muted);font-size:14px;padding:0 0 18px}
    .cta{background:linear-gradient(110deg,#0a3f98,#1167d8);color:#fff;border-radius:26px;padding:42px 48px;display:flex;justify-content:space-between;align-items:center;gap:30px}.cta p{color:#d9e8ff;margin-top:8px}.cta .primary-btn{background:#fff;color:var(--blue)}.cta .primary-btn:hover{background:#eaf5ff}
    .footer{background:#10223f;color:#fff;padding:48px max(36px,5vw) 25px}.footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.14)}.footer-brand{max-width:350px}.footer-brand strong{font-size:22px}.footer-brand p{color:#aebed5;font-size:13px;margin-top:12px}.footer-links{display:grid;grid-template-columns:repeat(3,auto);gap:10px 28px;align-content:start}.footer-links a{color:#c6d3e6;font-size:13px;transition:var(--ease)}.footer-links a:hover{color:#fff}.footer-bottom{display:flex;flex-wrap:wrap;gap:12px 28px;padding-top:22px;color:#8fa3bf;font-size:12px}
    :focus-visible{outline:3px solid rgba(22,185,231,.45);outline-offset:3px}
    @media(max-width:1024px){.side-nav{width:220px}.main-wrap{margin-left:220px}.container{width:min(100% - 46px,900px)}.hero-note{right:4%}.split{gap:30px}.footer-links{grid-template-columns:repeat(2,auto)}}
    @media(max-width:768px){.side-nav{position:relative;width:100%;height:auto;padding:13px 18px;display:block;border-right:0;border-bottom:1px solid var(--line)}.brand{padding:0}.brand-mark{width:36px;height:36px}.nav-label,.nav-bottom{display:none}.nav-list{display:flex;overflow-x:auto;padding-top:13px;gap:5px}.nav-list a{white-space:nowrap;padding:8px 10px}.main-wrap{margin-left:0}.topbar{height:60px;padding:0 22px}.search{width:170px}.hero{padding:42px 0}.inner-hero:after{width:50%;opacity:.35}.hero-copy{width:100%}.hero-note{position:relative;right:auto;bottom:auto;margin:28px 0 0;width:230px}.metrics-grid{grid-template-columns:repeat(2,1fr)}section{padding:58px 0}.split,.faq,.talk-grid,.topic-layout{grid-template-columns:1fr}.matrix-grid{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(2,1fr)}.footer-top{display:block}.footer-links{margin-top:28px}}
    @media(max-width:520px){.container{width:calc(100% - 32px)}h1{font-size:36px}.topbar{padding:0 16px}.topbar .outline-btn{display:none}.search{width:100%}.metrics-grid,.matrix-grid,.steps{grid-template-columns:1fr}.metric{padding:19px}.topic-card{grid-template-columns:100px 1fr}.topic-card img{width:100px;height:110px}.cta{padding:30px 23px;display:block}.cta .primary-btn{margin-top:20px;width:100%}.footer{padding-left:20px;padding-right:20px}.footer-links{grid-template-columns:1fr 1fr;gap:10px 15px}}