/* roulang page: index */
:root{
      --blue:#175cd3;--blue-dark:#123b85;--ink:#14233b;--muted:#65748b;
      --paper:#f5f8fc;--line:#dce5f0;--orange:#f5a623;--card:#ffffff;
      --shadow:0 16px 42px rgba(29,65,117,.09);--radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
    .nav-wrap{height:76px;display:flex;align-items:center;gap:26px}
    .brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--blue);font-size:20px;letter-spacing:-.04em;white-space:nowrap}
    .brand-mark{width:32px;height:32px;background:var(--blue);color:white;border-radius:9px;display:grid;place-items:center;font-size:14px;box-shadow:5px 5px 0 #f8c35c}
    .nav-links{display:flex;align-items:center;gap:25px;margin-left:auto}
    .nav-links a{font-size:14px;color:#526176;font-weight:600;transition:.2s}
    .nav-links a:hover,.nav-links a.active{color:var(--blue)}
    .nav-cta,.btn-primary{background:var(--blue);color:white;border:1px solid var(--blue);border-radius:10px;padding:11px 18px;font-weight:700;transition:.2s;box-shadow:0 7px 18px rgba(23,92,211,.18)}
    .nav-cta:hover,.btn-primary:hover{background:#1049ae;transform:translateY(-2px);box-shadow:0 11px 22px rgba(23,92,211,.25)}
    .menu-btn{display:none;background:white;border:1px solid var(--line);border-radius:9px;padding:8px 11px;color:var(--blue)}
    .eyebrow{color:var(--blue);font-weight:800;letter-spacing:.12em;font-size:12px;text-transform:uppercase}
    .section{padding:92px 0;border-bottom:1px solid var(--line)}
    .section.alt{background:#fff}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:38px}
    .section-head h2{font-size:clamp(26px,3.5vw,42px);line-height:1.2;letter-spacing:-.05em;margin:9px 0 0}
    .section-head p{max-width:520px;color:var(--muted);margin:0}
    .hero{padding:76px 0 86px;background:#fff;overflow:hidden}
    .hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
    .hero h1{font-size:clamp(38px,5.2vw,68px);line-height:1.08;letter-spacing:-.07em;margin:16px 0 22px;max-width:650px}
    .hero-copy{font-size:18px;color:var(--muted);max-width:610px}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:30px}
    .btn-secondary{border:1px solid #a9bfdf;background:white;color:var(--blue);border-radius:10px;padding:11px 18px;font-weight:700;transition:.2s}
    .btn-secondary:hover{border-color:var(--blue);background:#eff5ff;transform:translateY(-2px)}
    .hero-tags{display:flex;gap:9px;flex-wrap:wrap;margin-top:32px;padding-top:19px;border-top:1px solid var(--line)}
    .tag,.chip{display:inline-flex;align-items:center;border:1px solid #cbd9ec;background:#f7faff;color:#45617f;border-radius:999px;padding:5px 11px;font-size:12px;font-weight:700}
    .hero-visual{position:relative}
    .hero-visual img{width:100%;height:420px;object-fit:cover;border-radius:22px;box-shadow:var(--shadow)}
    .visual-note{position:absolute;left:-22px;bottom:22px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);padding:16px 18px;border-radius:13px;max-width:210px}
    .visual-note strong{display:block;color:var(--blue);font-size:25px;line-height:1.2}
    .pain-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}
    .pain-list,.solution-main,.quote-main,.form-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .pain-list{padding:12px 28px}
    .pain-item{display:flex;gap:18px;align-items:flex-start;padding:23px 0;border-bottom:1px solid var(--line)}
    .pain-item:last-child{border-bottom:0}
    .number{color:var(--orange);font-weight:900;font-size:14px;min-width:30px}
    .pain-item h3,.solution-block h3,.person-card h3{font-size:17px;margin:0 0 5px}
    .pain-item p,.solution-block p,.person-card p{color:var(--muted);font-size:14px;margin:0}
    .pain-side{padding:34px;background:#eaf2ff;border-radius:var(--radius);display:flex;flex-direction:column;justify-content:space-between}
    .pain-side strong{font-size:48px;line-height:1;color:var(--blue);display:block}
    .solution-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
    .solution-main{padding:35px;min-height:300px;background:linear-gradient(135deg,#fff 0%,#f0f6ff 100%)}
    .solution-main h3{font-size:30px;line-height:1.25;margin:14px 0}
    .flowline{display:flex;align-items:center;gap:8px;margin-top:32px;flex-wrap:wrap}
    .flowline span{padding:10px 13px;background:white;border:1px solid #cbd9ec;border-radius:9px;font-weight:700;color:var(--blue);font-size:13px}
    .solution-stack{display:grid;gap:20px}
    .solution-block{padding:24px;background:#fff;border:1px solid var(--line);border-radius:15px}
    .solution-block b{font-size:12px;color:var(--orange);letter-spacing:.1em}
    .steps{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
    .step{padding:22px 17px;background:#fff;border:1px solid var(--line);border-top:3px solid var(--blue);border-radius:12px;min-height:180px}
    .step em{font-style:normal;color:var(--orange);font-size:12px;font-weight:900}
    .step h3{font-size:16px;margin:17px 0 8px}
    .step p{color:var(--muted);font-size:13px;margin:0}
    .script-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px}
    .script-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px}
    .script-panel h3{margin:0 0 20px;font-size:22px}
    .script-row{display:flex;justify-content:space-between;padding:14px 0;border-bottom:1px dashed #cbd8e8;font-size:14px}
    .script-row span:last-child{color:var(--blue);font-weight:700}
    .shot-board{background:#152d55;color:white;border-radius:14px;padding:22px}
    .shot-top{display:flex;justify-content:space-between;color:#b9cce9;font-size:12px;border-bottom:1px solid #36547e;padding-bottom:14px}
    .shot-box{margin-top:20px;padding:23px;border:1px solid #5277a8;border-radius:10px;background:#1d3c6b}
    .shot-box strong{display:block;color:#f8c35c;font-size:13px;margin-bottom:10px}
    .shot-box p{margin:0;color:#d8e4f5;font-size:14px}
    .data-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#b8cbe5;border:1px solid #b8cbe5;border-radius:16px;overflow:hidden}
    .data-item{background:#fff;padding:31px 25px}
    .data-item strong{font-size:42px;line-height:1;color:var(--blue);display:block}
    .data-item b{display:block;margin-top:12px;font-size:14px}
    .data-item p{color:var(--muted);font-size:13px;margin:5px 0 0}
    .quotes{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px}
    .quote-main{padding:35px;background:#eaf2ff}
    .quote-main blockquote{font-size:24px;line-height:1.5;margin:18px 0 25px;font-weight:700}
    .quote-card{background:#fff;border:1px solid var(--line);padding:25px;border-radius:15px}
    .quote-card p{font-size:16px;font-weight:600;margin:0 0 22px}
    .quote-card small,.quote-main small{color:var(--muted)}
    .people-grid{display:grid;grid-template-columns:1.3fr .85fr .85fr;gap:18px}
    .person-card{padding:28px;background:#fff;border:1px solid var(--line);border-radius:16px;min-height:170px}
    .person-card.featured{background:var(--blue);color:#fff}
    .person-card.featured p{color:#d7e5ff}
    .person-card .tag{margin-bottom:19px}
    .scene-wrap{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .scene{padding:24px;background:#fff;border:1px solid var(--line);border-radius:13px;display:flex;justify-content:space-between;gap:16px}
    .scene h3{font-size:17px;margin:0 0 5px}
    .scene p{font-size:13px;color:var(--muted);margin:0}
    .scene i{font-style:normal;color:var(--orange);font-size:24px}
    .news-layout{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .featured-news{position:relative;min-height:330px;overflow:hidden;border-radius:18px;color:#fff;background:#15345f}
    .featured-news img{width:100%;height:100%;object-fit:cover;opacity:.68}
    .news-overlay{position:absolute;inset:0;padding:28px;display:flex;flex-direction:column;justify-content:end;background:linear-gradient(transparent,rgba(9,27,54,.85))}
    .news-overlay h3{font-size:26px;line-height:1.3;margin:10px 0}
    .news-list{background:#fff;border:1px solid var(--line);border-radius:18px;padding:8px 25px}
    .news-item{display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}
    .news-item:last-child{border-bottom:0}
    .news-item time{color:var(--orange);font-size:12px;font-weight:800;min-width:55px}
    .news-item h3{font-size:15px;margin:0 0 4px}
    .news-item p{font-size:13px;color:var(--muted);margin:0}
    .faq-list{max-width:900px;margin:auto}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:11px;overflow:hidden}
    .faq-q{width:100%;display:flex;justify-content:space-between;gap:20px;text-align:left;border:0;background:transparent;padding:20px 23px;color:var(--ink);font-weight:800}
    .faq-q span:last-child{color:var(--blue);font-size:20px}
    .faq-a{display:none;padding:0 23px 20px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q{color:var(--blue)}
    .metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .metric{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px}
    .metric h3{font-size:17px;margin:0 0 12px}
    .metric p{margin:0;color:var(--muted);font-size:14px}
    .metric b{display:inline-block;color:var(--blue);margin-right:8px}
    .form-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:start}
    .form-intro{padding:22px 0}
    .form-intro h2{font-size:38px;line-height:1.25;margin:12px 0}
    .form-intro p{color:var(--muted)}
    .form-card{padding:28px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    label{display:block;color:#41536e;font-size:13px;font-weight:700}
    input,select,textarea{width:100%;margin-top:7px;padding:12px 13px;border:1px solid #cbd8e8;border-radius:9px;background:#fbfdff;color:var(--ink);outline:none}
    textarea{min-height:105px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(23,92,211,.12)}
    .full{grid-column:1/-1}
    .final-cta{padding:98px 0;background:#eaf2ff;text-align:center}
    .final-cta h2{font-size:clamp(30px,4vw,48px);margin:12px auto;line-height:1.2}
    .final-cta p{max-width:620px;margin:0 auto 28px;color:var(--muted)}
    .site-footer{background:#122846;color:#d8e5f7;padding:54px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
    .site-footer .brand{color:#fff}
    .site-footer p{color:#9fb3cd;font-size:13px;max-width:300px}
    .site-footer h3{color:#fff;font-size:14px;margin:0 0 15px}
    .site-footer a{display:block;color:#a9bdd6;font-size:13px;margin:9px 0;transition:.2s}
    .site-footer a:hover{color:#fff}
    .copyright{border-top:1px solid #2d4667;margin-top:35px;padding-top:18px;color:#91a8c4;font-size:12px;display:flex;justify-content:space-between}
    @media(max-width:1024px){.nav-links{gap:14px}.hero-grid{gap:35px}.steps{grid-template-columns:repeat(3,1fr)}.people-grid,.quotes{grid-template-columns:1fr 1fr}.quote-main{grid-column:1/-1}.data-strip{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.container{width:min(100% - 30px,620px)}.nav-wrap{height:68px}.menu-btn{display:block;margin-left:auto}.nav-cta{display:none}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;padding:14px 20px 20px;border-bottom:1px solid var(--line);box-shadow:0 12px 20px rgba(20,55,100,.08);flex-direction:column;align-items:stretch;gap:0}.nav-links.show{display:flex}.nav-links a{padding:12px 0;border-bottom:1px solid #edf1f6}.hero{padding:52px 0 65px}.hero-grid,.pain-grid,.solution-layout,.script-grid,.news-layout,.form-layout{grid-template-columns:1fr}.hero h1{font-size:42px}.hero-visual img{height:300px}.section{padding:65px 0}.section-head{display:block}.section-head p{margin-top:15px}.steps{grid-template-columns:1fr 1fr}.scene-wrap{grid-template-columns:1fr}.metrics{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:520px){.brand{font-size:17px}.hero h1{font-size:36px}.hero-copy{font-size:16px}.steps,.data-strip,.people-grid,.quotes,.metrics,.form-grid{grid-template-columns:1fr}.form-grid .full{grid-column:auto}.section-head h2{font-size:30px}.copyright{display:block}.copyright span{display:block;margin-top:7px}.hero-actions a{width:100%;text-align:center}}

/* roulang page: category1 */
:root{--blue:#175cd3;--blue-dark:#123b85;--ink:#14233b;--muted:#65748b;--paper:#f5f8fc;--line:#dce5f0;--orange:#f5a623;--card:#fff;--shadow:0 16px 42px rgba(29,65,117,.09);--radius:18px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input,textarea,select{font:inherit}button{cursor:pointer}.container{width:min(1180px,calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav-wrap{height:76px;display:flex;align-items:center;gap:26px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--blue);font-size:20px;letter-spacing:-.04em;white-space:nowrap}.brand-mark{width:32px;height:32px;background:var(--blue);color:#fff;border-radius:9px;display:grid;place-items:center;font-size:14px;box-shadow:5px 5px 0 #f8c35c}.nav-links{display:flex;align-items:center;gap:25px;margin-left:auto}.nav-links a{font-size:14px;color:#526176;font-weight:600;transition:.2s}.nav-links a:hover,.nav-links a.active{color:var(--blue)}.nav-cta,.btn-primary{background:var(--blue);color:#fff;border:1px solid var(--blue);border-radius:10px;padding:11px 18px;font-weight:700;transition:.2s;box-shadow:0 7px 18px rgba(23,92,211,.18)}.nav-cta:hover,.btn-primary:hover{background:#1049ae;transform:translateY(-2px);box-shadow:0 11px 22px rgba(23,92,211,.25)}.menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:9px;padding:8px 11px;color:var(--blue)}
.section{padding:82px 0;border-bottom:1px solid var(--line)}.section.alt{background:#fff}.eyebrow{color:var(--blue);font-weight:800;letter-spacing:.12em;font-size:12px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}.section-head h2{font-size:clamp(26px,3.5vw,42px);line-height:1.2;letter-spacing:-.05em;margin:9px 0 0}.section-head p{max-width:540px;color:var(--muted);margin:0}.intro{padding:68px 0 55px;background:#fff}.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}.intro h1{font-size:clamp(38px,5vw,64px);line-height:1.08;letter-spacing:-.07em;margin:15px 0 20px}.intro-copy{font-size:18px;color:var(--muted);max-width:650px}.intro-image{position:relative}.intro-image img{width:100%;height:330px;object-fit:cover;border-radius:22px;box-shadow:var(--shadow)}.image-note{position:absolute;left:20px;bottom:18px;background:#fff;border-left:4px solid var(--orange);padding:11px 15px;border-radius:9px;font-size:13px;font-weight:700;box-shadow:0 8px 20px #123b8522}.chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px}.chip{display:inline-flex;border:1px solid #cbd9ec;background:#f7faff;color:#45617f;border-radius:999px;padding:5px 11px;font-size:12px;font-weight:700}
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff;box-shadow:var(--shadow)}.stage{padding:25px 21px;min-height:205px;border-right:1px solid var(--line);position:relative}.stage:last-child{border-right:0}.stage-num{color:var(--orange);font-size:13px;font-weight:900;letter-spacing:.1em}.stage h3{font-size:18px;margin:18px 0 8px}.stage p{font-size:13px;color:var(--muted);margin:0}.stage:after{content:"";position:absolute;right:-7px;top:30px;width:13px;height:13px;border-radius:50%;background:var(--blue);border:3px solid #fff;z-index:2}
.content-list{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}.content-row{display:grid;grid-template-columns:95px 1fr 250px 80px;gap:20px;align-items:center;padding:25px 29px;border-bottom:1px solid var(--line);transition:.2s}.content-row:last-child{border-bottom:0}.content-row:hover{background:#f6f9ff}.content-date{color:var(--orange);font-size:12px;font-weight:800}.content-type{display:inline-block;color:var(--blue);font-size:12px;font-weight:800;margin-bottom:5px}.content-row h3{font-size:18px;margin:0 0 5px}.content-row p{color:var(--muted);font-size:13px;margin:0}.row-arrow{color:var(--blue);font-size:24px;text-align:right}.more{text-align:center;margin-top:28px}.btn-secondary{display:inline-block;border:1px solid #a9bfdf;background:#fff;color:var(--blue);border-radius:10px;padding:11px 18px;font-weight:700;transition:.2s}.btn-secondary:hover{border-color:var(--blue);background:#eff5ff;transform:translateY(-2px)}
.method-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.method-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:29px;box-shadow:var(--shadow);position:relative;overflow:hidden}.method-card.large{grid-row:span 2;background:#eaf2ff}.method-card:before{content:"";display:block;width:38px;height:4px;background:var(--orange);border-radius:4px;margin-bottom:20px}.method-card h3{font-size:22px;margin:0 0 9px}.method-card p{color:var(--muted);font-size:14px;margin:0}.method-card ul{padding-left:18px;color:var(--muted);font-size:14px}.method-card li{margin:7px 0}
.faq-list{max-width:900px;margin:auto}.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:11px;overflow:hidden}.faq-q{width:100%;display:flex;justify-content:space-between;gap:20px;text-align:left;border:0;background:transparent;padding:20px 23px;color:var(--ink);font-weight:800}.faq-q span:last-child{color:var(--blue);font-size:20px}.faq-a{display:none;padding:0 23px 20px;color:var(--muted);font-size:14px}.faq-item.open .faq-a{display:block}.faq-item.open .faq-q{color:var(--blue)}
.scene-line{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.scene{background:#fff;border:1px solid var(--line);border-radius:15px;padding:22px;min-height:145px}.scene strong{display:block;color:var(--blue);font-size:15px;margin-bottom:8px}.scene p{font-size:13px;color:var(--muted);margin:0}.cta{background:#eaf2ff;padding:65px 0}.cta-box{display:flex;justify-content:space-between;align-items:center;gap:30px}.cta h2{font-size:clamp(27px,4vw,45px);line-height:1.2;margin:10px 0}.cta p{color:var(--muted);max-width:600px}.site-footer{background:#10284d;color:#dbe7f7;padding:58px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}.site-footer .brand{color:#fff}.site-footer .brand-mark{background:#fff;color:var(--blue);box-shadow:5px 5px 0 #f8c35c}.site-footer p{color:#a9bdd8;font-size:13px;max-width:300px}.site-footer h3{font-size:14px;color:#fff;margin:0 0 14px}.site-footer a:not(.brand){display:block;color:#a9bdd8;font-size:13px;margin:8px 0;transition:.2s}.site-footer a:not(.brand):hover{color:#fff}.copyright{border-top:1px solid #294568;margin-top:40px;padding-top:18px;display:flex;justify-content:space-between;color:#8ea7c7;font-size:12px}
:focus-visible{outline:3px solid #f5a623;outline-offset:3px}
@media(max-width:1024px){.nav-links{gap:14px}.timeline{grid-template-columns:repeat(3,1fr)}.stage:nth-child(3){border-right:0}.stage:nth-child(n+4){border-top:1px solid var(--line)}.scene-line{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.container{width:min(100% - 30px,620px)}.nav-wrap{height:68px;gap:12px}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:14px 20px;flex-direction:column;align-items:stretch;gap:0;box-shadow:0 15px 25px #123b8510}.nav-links.open{display:flex}.nav-links a{padding:12px 0;border-bottom:1px solid #edf1f6}.nav-cta{margin-left:auto;padding:9px 12px;font-size:13px}.menu-btn{display:block}.intro,.section{padding:58px 0}.intro-grid,.method-grid{grid-template-columns:1fr;gap:28px}.intro h1{font-size:42px}.intro-image img{height:260px}.timeline{grid-template-columns:1fr}.stage{border-right:0;border-bottom:1px solid var(--line);min-height:auto}.stage:last-child{border-bottom:0}.stage:after{display:none}.content-row{grid-template-columns:72px 1fr 28px;gap:12px;padding:21px 17px}.content-row p{display:none}.content-row h3{font-size:15px}.content-row>div:nth-child(3){display:none}.scene-line{grid-template-columns:1fr 1fr}.cta-box{display:block}.cta .btn-primary{margin-top:15px}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.copyright{display:block}.copyright span{display:block;margin:5px 0}}
@media(max-width:520px){.brand{font-size:17px}.brand-mark{width:29px;height:29px}.nav-cta{display:none}.intro h1{font-size:36px}.section-head{display:block}.section-head p{margin-top:15px}.scene-line{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.content-row{grid-template-columns:62px 1fr 20px}.content-date{font-size:11px}}

/* roulang page: category2 */
:root{
      --blue:#175cd3;--blue-dark:#123b85;--ink:#14233b;--muted:#65748b;
      --paper:#f5f8fc;--line:#dce5f0;--orange:#f5a623;--card:#ffffff;
      --shadow:0 16px 42px rgba(29,65,117,.09);--radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:90px}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(245,166,35,.75);outline-offset:3px}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
    .nav-wrap{height:76px;display:flex;align-items:center;gap:26px}
    .brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--blue);font-size:20px;letter-spacing:-.04em;white-space:nowrap}
    .brand-mark{width:32px;height:32px;background:var(--blue);color:white;border-radius:9px;display:grid;place-items:center;font-size:14px;box-shadow:5px 5px 0 #f8c35c}
    .nav-links{display:flex;align-items:center;gap:25px;margin-left:auto}
    .nav-links a{font-size:14px;color:#526176;font-weight:600;transition:color .2s}
    .nav-links a:hover,.nav-links a.active{color:var(--blue)}
    .nav-cta,.btn-primary{display:inline-flex;align-items:center;justify-content:center;background:var(--blue);color:white;border:1px solid var(--blue);border-radius:10px;padding:11px 18px;font-weight:700;transition:.2s;box-shadow:0 7px 18px rgba(23,92,211,.18)}
    .nav-cta:hover,.btn-primary:hover{background:#1049ae;transform:translateY(-2px);box-shadow:0 11px 22px rgba(23,92,211,.25)}
    .btn-secondary{display:inline-flex;align-items:center;justify-content:center;border:1px solid #a9bfdf;background:white;color:var(--blue);border-radius:10px;padding:11px 18px;font-weight:700;transition:.2s}
    .btn-secondary:hover{border-color:var(--blue);background:#eff5ff;transform:translateY(-2px)}
    .menu-btn{display:none;background:white;border:1px solid var(--line);border-radius:9px;padding:8px 11px;color:var(--blue)}
    .section{padding:76px 0;border-bottom:1px solid var(--line)}
    .section.alt{background:#fff}
    .eyebrow{color:var(--blue);font-weight:800;letter-spacing:.12em;font-size:12px}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
    .section-head h2{font-size:clamp(26px,3.5vw,40px);line-height:1.2;letter-spacing:-.05em;margin:9px 0 0}
    .section-head p{max-width:520px;color:var(--muted);margin:0}
    .intro-band{background:#fff;border-bottom:1px solid var(--line);padding:54px 0 48px}
    .intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:38px;align-items:center}
    .intro-band h1{font-size:clamp(34px,5vw,56px);line-height:1.12;letter-spacing:-.065em;margin:12px 0 16px}
    .intro-band p{max-width:690px;margin:0;color:var(--muted);font-size:17px}
    .intro-image{height:230px;width:100%;object-fit:cover;border-radius:18px;box-shadow:var(--shadow)}
    .chips{display:flex;gap:9px;flex-wrap:wrap;margin-top:22px}
    .chip,.tag{display:inline-flex;align-items:center;border:1px solid #cbd9ec;background:#f7faff;color:#45617f;border-radius:999px;padding:5px 11px;font-size:12px;font-weight:700}
    .scene-index{display:flex;gap:10px;flex-wrap:wrap;margin-top:25px}
    .scene-index a{padding:9px 14px;border:1px solid var(--line);border-radius:10px;background:#fff;color:#435674;font-size:14px;font-weight:700;transition:.2s}
    .scene-index a:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px)}
    .case-list{border-top:1px solid var(--line)}
    .case-row{display:grid;grid-template-columns:76px 1fr 1.05fr;gap:26px;align-items:center;padding:26px 18px;border-bottom:1px solid var(--line);transition:background .2s}
    .case-row:hover{background:#f7faff}
    .case-no{font-size:14px;font-weight:800;color:var(--orange);letter-spacing:.08em}
    .case-row h3{font-size:20px;line-height:1.35;margin:7px 0}
    .case-row p{font-size:14px;color:var(--muted);margin:0}
    .case-detail{display:flex;gap:10px;align-items:flex-start;color:#53647c;font-size:14px}
    .case-detail b{color:var(--blue);white-space:nowrap}
    .more-row{display:flex;justify-content:flex-end;padding-top:22px}
    .more-link{color:var(--blue);font-weight:800;border-bottom:1px solid #a8c2ed;padding-bottom:3px}
    .more-link:hover{color:var(--blue-dark)}
    .flow-line{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);background:#fff;border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}
    .flow-step{padding:27px 24px;position:relative;border-right:1px solid var(--line)}
    .flow-step:last-child{border-right:0}
    .flow-step .num{font-size:12px;font-weight:900;color:var(--orange);letter-spacing:.12em}
    .flow-step h3{font-size:19px;margin:10px 0 7px}
    .flow-step p{font-size:14px;color:var(--muted);margin:0}
    .team-layout{display:grid;grid-template-columns:1fr 1.15fr;gap:36px;align-items:start}
    .team-lead{padding:27px;border-radius:18px;background:#eaf2ff;border:1px solid #d8e6fa}
    .team-lead h3{font-size:25px;line-height:1.3;margin:0 0 11px}
    .team-lead p{color:#526782;margin:0}
    .team-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
    .team-list li{display:grid;grid-template-columns:42px 1fr;gap:16px;padding:16px 4px;border-bottom:1px solid var(--line)}
    .team-list .index{color:var(--orange);font-weight:900}
    .team-list h3{font-size:16px;margin:0 0 3px}
    .team-list p{color:var(--muted);font-size:14px;margin:0}
    .metrics{display:grid;grid-template-columns:1fr 1.15fr;gap:28px;align-items:start}
    .metric-feature{padding:32px;background:var(--blue);border-radius:18px;color:#fff;min-height:250px}
    .metric-feature strong{display:block;font-size:48px;line-height:1;color:#ffd27b;margin:12px 0}
    .metric-feature h3{font-size:23px;margin:0}
    .metric-feature p{color:#dce9ff;margin:0;max-width:390px}
    .metric-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
    .metric-table th,.metric-table td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);font-size:14px}
    .metric-table th{color:#526782;background:#f7faff;font-size:12px;letter-spacing:.04em}
    .metric-table tr:last-child td{border-bottom:0}
    .metric-table td:first-child{font-weight:800;color:var(--blue);white-space:nowrap}
    .faq-list{max-width:900px;margin:auto}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:11px;overflow:hidden}
    .faq-q{width:100%;display:flex;justify-content:space-between;gap:20px;text-align:left;border:0;background:transparent;padding:19px 22px;color:var(--ink);font-weight:800}
    .faq-q span:last-child{color:var(--blue);font-size:20px;line-height:1}
    .faq-a{display:none;padding:0 22px 19px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q{color:var(--blue)}
    .cta-band{padding:58px 0;background:#eaf2ff}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta-inner h2{font-size:clamp(26px,3.5vw,38px);line-height:1.2;margin:8px 0}
    .cta-inner p{color:var(--muted);margin:0;max-width:610px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0}
    .site-footer{background:#edf3fa;padding:48px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:34px}
    .footer-grid p{color:var(--muted);font-size:14px;max-width:300px;margin:16px 0 0}
    .footer-grid h3{font-size:14px;margin:3px 0 14px}
    .footer-grid>div>a:not(.brand){display:block;color:#5a6a80;font-size:13px;margin:8px 0;transition:color .2s}
    .footer-grid>div>a:not(.brand):hover{color:var(--blue)}
    .copyright{display:flex;justify-content:space-between;gap:15px;padding-top:18px;border-top:1px solid #d7e1ed;color:#718097;font-size:12px}
    @media(max-width:1024px){
      .nav-wrap{gap:15px}.nav-links{gap:15px}.nav-links a{font-size:13px}
      .intro-grid{gap:25px}.case-row{grid-template-columns:55px 1fr 1fr;gap:17px}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(100% - 32px,620px)}
      .nav-wrap{height:68px;gap:12px}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;margin:0;padding:12px 20px 20px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 14px 25px rgba(29,65,117,.08);align-items:stretch;flex-direction:column;gap:0}
      .nav-links.open{display:flex}.nav-links a{padding:12px 4px;border-bottom:1px solid #edf1f6;font-size:14px}
      .menu-btn{display:block;margin-left:auto}.nav-cta{padding:9px 12px;font-size:12px}
      .brand{font-size:18px}.brand-mark{width:30px;height:30px}
      .intro-band{padding:40px 0}.intro-grid{grid-template-columns:1fr;gap:24px}.intro-image{height:250px}
      .section{padding:58px 0}.section-head{display:block;margin-bottom:25px}.section-head p{margin-top:13px}
      .case-row{grid-template-columns:42px 1fr;gap:12px;padding:20px 6px}
      .case-detail{grid-column:2}.flow-line{grid-template-columns:1fr 1fr}
      .flow-step:nth-child(2){border-right:0}.flow-step:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .team-layout,.metrics{grid-template-columns:1fr}
      .cta-inner{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    }
    @media(max-width:520px){
      .container{width:calc(100% - 28px)}
      .brand{font-size:16px;gap:7px}.brand-mark{width:28px;height:28px}
      .nav-cta{font-size:11px;padding:8px 9px}
      .intro-band h1{font-size:36px}
      .intro-band p{font-size:15px}
      .intro-image{height:205px}
      .scene-index a{font-size:12px;padding:8px 10px}
      .flow-line{grid-template-columns:1fr}
      .flow-step{border-right:0;border-bottom:1px solid var(--line)!important;padding:21px}
      .flow-step:last-child{border-bottom:0!important}
      .metric-table th,.metric-table td{padding:11px 9px;font-size:12px}
      .metric-feature{padding:25px}.metric-feature strong{font-size:40px}
      .cta-actions{width:100%}.cta-actions a{flex:1;text-align:center}
      .footer-grid{grid-template-columns:1fr 1fr;gap:22px}
      .footer-grid>div:first-child{grid-column:1/-1}
      .copyright{flex-direction:column;gap:4px}
    }