/* roulang page: index */
:root{--blue:#2675d8;--blue-dark:#1554a7;--blue-soft:#eaf4ff;--orange:#e79a45;--ink:#1d3048;--muted:#6f8095;--line:#dce8f3;--paper:#f7fbff;--shadow:0 16px 45px rgba(35,78,120,.10);--radius:18px}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;line-height:1.8}a{text-decoration:none;color:inherit}img{display:block;max-width:100%}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid rgba(38,117,216,.35);outline-offset:3px}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}.site-header{height:76px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}.logo{font-size:22px;font-weight:800;letter-spacing:.04em;color:var(--blue-dark);white-space:nowrap}.logo i{display:inline-block;width:10px;height:10px;background:var(--orange);border-radius:50%;margin:0 8px 2px 0}.nav-links{display:flex;align-items:center;gap:8px}.nav-link{padding:10px 15px;border-radius:10px;color:#5e7086;font-size:15px;transition:.25s}.nav-link:hover,.nav-link.active{color:var(--blue-dark);background:var(--blue-soft)}.nav-button,.btn-primary{background:var(--blue);color:#fff;border:1px solid var(--blue);padding:11px 19px;border-radius:10px;font-weight:700;transition:.25s;box-shadow:0 8px 18px rgba(38,117,216,.18)}.nav-button:hover,.btn-primary:hover{background:var(--blue-dark);border-color:var(--blue-dark);transform:translateY(-2px)}.menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 11px;color:var(--blue-dark)}
    .hero{background:linear-gradient(115deg,#f8fcff 0%,#edf6ff 62%,#fff8ef 100%);padding:76px 0 84px;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:64px;align-items:center}.eyebrow,.section-kicker{color:var(--blue);font-weight:800;font-size:13px;letter-spacing:.12em}.hero h1{font-size:clamp(34px,4.2vw,58px);line-height:1.18;letter-spacing:-.04em;margin:16px 0 22px;color:#193452}.hero-copy{font-size:17px;color:#62758b;max-width:650px}.hero-actions{display:flex;gap:12px;align-items:center;margin-top:30px}.btn-secondary{padding:11px 19px;border:1px solid #b9d4ee;border-radius:10px;color:var(--blue-dark);background:#fff;font-weight:700;transition:.25s}.btn-secondary:hover{background:var(--blue-soft);border-color:var(--blue);transform:translateY(-2px)}.hero-visual{position:relative;min-height:380px;border-radius:26px;overflow:hidden;box-shadow:var(--shadow);background:#c9dff1}.hero-visual img{width:100%;height:380px;object-fit:cover}.image-caption{position:absolute;left:22px;right:22px;bottom:20px;background:rgba(255,255,255,.91);padding:14px 17px;border-radius:13px;color:var(--ink);font-weight:700}.mini-note{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:14px;margin-top:19px}.dot{width:9px;height:9px;border-radius:50%;background:var(--orange)}
    section{padding:88px 0}.section-head{max-width:700px;margin-bottom:34px}.section-head h2{font-size:clamp(26px,3vw,38px);line-height:1.3;margin:10px 0 13px;letter-spacing:-.025em}.section-head p{color:var(--muted);margin:0;font-size:16px}.soft-section{background:var(--paper)}.problem-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.problem-card{padding:26px 25px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);position:relative}.problem-card strong{font-size:13px;color:var(--orange)}.problem-card h3{font-size:19px;margin:16px 0 9px}.problem-card p,.feature-list p,.audience-card p,.news-list p,.quote p{color:var(--muted);font-size:14px;margin:0}.problem-card:after{content:"";position:absolute;width:42px;height:3px;background:var(--orange);left:25px;bottom:20px;border-radius:3px}
    .solution-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}.solution-main{min-height:330px;padding:34px;border-radius:var(--radius);background:linear-gradient(135deg,#eaf5ff,#fff);border:1px solid #cfe3f5;display:flex;flex-direction:column;justify-content:space-between}.solution-main h3{font-size:26px;margin:8px 0 15px}.solution-main p{color:var(--muted);max-width:530px}.feature-list{display:grid;gap:12px}.feature-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:19px 20px;display:flex;gap:14px;align-items:flex-start;transition:.25s}.feature-item:hover{transform:translateX(4px);box-shadow:var(--shadow)}.feature-icon{width:30px;height:30px;flex:0 0 30px;border-radius:9px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center;font-weight:800}.feature-item h3{font-size:16px;margin:0 0 3px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}.step{padding:27px 22px 10px 0;position:relative}.step:not(:last-child){border-right:1px solid var(--line);padding-right:25px;margin-right:24px}.step-number{color:var(--blue);font-size:14px;font-weight:800;letter-spacing:.1em}.step h3{font-size:18px;margin:13px 0 8px}.step p{color:var(--muted);font-size:14px;margin:0}
    .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.metric{background:#fff;border:1px solid var(--line);border-radius:16px;padding:25px}.metric b{font-size:34px;line-height:1;color:var(--blue-dark);display:block;margin-bottom:11px}.metric span{font-size:14px;color:var(--muted)}.metric small{display:block;color:#91a2b5;margin-top:7px}
    .quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.quote{background:#fff;border:1px solid var(--line);padding:26px;border-radius:var(--radius);box-shadow:0 8px 25px rgba(35,78,120,.05)}.quote p{font-size:16px;color:#536a82;min-height:85px}.quote-foot{display:flex;align-items:center;gap:11px;margin-top:18px;font-size:13px;color:var(--blue-dark);font-weight:700}.avatar{width:34px;height:34px;border-radius:50%;background:#dceeff;display:grid;place-items:center;color:var(--blue)}
    .audiences{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.audience-main{background:#1f5da8;color:#fff;border-radius:var(--radius);padding:31px}.audience-main h3{font-size:25px;margin:0 0 14px}.audience-main p{color:#d8eaff;margin:0 0 23px}.audience-tags{display:flex;flex-wrap:wrap;gap:9px}.audience-tags span{border:1px solid rgba(255,255,255,.3);padding:7px 12px;border-radius:8px;font-size:13px}.audience-side{display:grid;gap:14px}.audience-card{border:1px solid var(--line);border-radius:15px;padding:20px;background:#fff}.audience-card h3{margin:0 0 5px;font-size:17px}
    .topic-grid{display:grid;grid-template-columns:1.4fr .8fr;gap:18px}.topic-feature{min-height:320px;border-radius:var(--radius);overflow:hidden;position:relative;background:#c9dff1}.topic-feature img{height:320px;width:100%;object-fit:cover}.topic-overlay{position:absolute;inset:auto 0 0;padding:28px;color:#fff;background:linear-gradient(transparent,rgba(12,38,67,.85))}.topic-overlay h3{font-size:25px;margin:0 0 7px}.topic-side{display:grid;gap:14px}.topic-small{padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}.topic-small h3{margin:0 0 8px;font-size:18px}.topic-small p{color:var(--muted);font-size:14px;margin:0}
    .news-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:36px}.news-highlight{background:#fff4e8;border:1px solid #f3dcc2;border-radius:var(--radius);padding:29px}.news-highlight .date,.news-item .date{color:var(--orange);font-size:13px;font-weight:800}.news-highlight h3{font-size:23px;margin:14px 0 9px}.news-highlight p{color:#7e6d5b;font-size:14px}.news-list{display:grid;gap:0}.news-item{display:grid;grid-template-columns:100px 1fr;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}.news-item h3{margin:0 0 4px;font-size:17px}.news-item p{line-height:1.6}.structure{background:#183b68;color:#fff}.structure .section-head p{color:#c7d8ea}.data-line{display:grid;grid-template-columns:1fr 1fr;gap:17px}.data-row{padding:19px 0;border-bottom:1px solid rgba(255,255,255,.18);display:flex;justify-content:space-between;gap:20px}.data-row span{color:#c8d9eb}.bar{height:7px;background:rgba(255,255,255,.15);border-radius:10px;margin-top:11px}.bar i{display:block;height:100%;background:#f1ad59;border-radius:10px}.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.faq-grid details{border:1px solid var(--line);border-radius:13px;background:#fff;padding:17px 19px}.faq-grid summary{cursor:pointer;font-weight:700;color:#294766}.faq-grid details p{color:var(--muted);font-size:14px;margin:12px 0 0}.cta{padding:74px 0;background:#eaf5ff}.cta-box{border:1px solid #c4dcf2;border-radius:22px;padding:42px 48px;background:linear-gradient(110deg,#f8fcff,#e5f2ff);display:flex;justify-content:space-between;gap:30px;align-items:center}.cta h2{font-size:30px;margin:0 0 9px}.cta p{color:var(--muted);margin:0}.site-footer{background:#f3f8fc;border-top:1px solid var(--line);padding:38px 0 25px}.footer-row{display:flex;justify-content:space-between;gap:30px;align-items:flex-start}.footer-copy{color:var(--muted);font-size:13px;margin-top:9px}.footer-links{display:flex;gap:19px;color:#5d7189;font-size:14px}.footer-links a:hover{color:var(--blue)}
    @media(max-width:900px){.hero-grid,.solution-grid,.audiences,.topic-grid,.news-layout{grid-template-columns:1fr;gap:30px}.hero{padding:55px 0 65px}.hero-visual{min-height:300px}.hero-visual img{height:300px}.problem-row,.quotes{grid-template-columns:1fr 1fr}.metrics{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:680px){.container{width:min(100% - 28px,1180px)}.site-header,.nav-wrap{height:68px}.nav-links{display:none;position:absolute;left:14px;right:14px;top:74px;background:#fff;padding:10px;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-link,.nav-button{text-align:center;min-height:44px}.menu-btn{display:block}.hero h1{font-size:35px}.hero-copy{font-size:15px}.hero-actions{flex-wrap:wrap}.hero-actions a{flex:1;text-align:center;min-width:145px}.section{padding:64px 0}section{padding:64px 0}.problem-row,.quotes,.metrics,.steps,.faq-grid{grid-template-columns:1fr}.step{border-right:0!important;border-bottom:1px solid var(--line);padding:20px 0!important;margin:0!important}.step:last-child{border-bottom:0}.data-line{grid-template-columns:1fr}.topic-feature,.topic-feature img{min-height:260px;height:260px}.news-item{grid-template-columns:76px 1fr;gap:10px}.cta-box{padding:30px 24px;display:block}.cta-box .btn-primary{display:inline-block;margin-top:22px}.footer-row{display:block}.footer-links{margin-top:22px;flex-wrap:wrap}}

/* roulang page: category1 */
:root{--blue:#2675d8;--blue-dark:#1554a7;--blue-soft:#eaf4ff;--orange:#e79a45;--ink:#1d3048;--muted:#6f8095;--line:#dce8f3;--paper:#f7fbff;--shadow:0 16px 45px rgba(35,78,120,.10);--radius:18px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:#fff;font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;line-height:1.8}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
button{font:inherit;cursor:pointer}
button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid rgba(38,117,216,.35);outline-offset:3px}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.site-header{height:76px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{font-size:22px;font-weight:800;letter-spacing:.04em;color:var(--blue-dark);white-space:nowrap}
.logo i{display:inline-block;width:10px;height:10px;background:var(--orange);border-radius:50%;margin:0 8px 2px 0}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-link{padding:10px 15px;border-radius:10px;color:#5e7086;font-size:15px;transition:.25s}
.nav-link:hover,.nav-link.active{color:var(--blue-dark);background:var(--blue-soft)}
.nav-button,.btn-primary{background:var(--blue);color:#fff;border:1px solid var(--blue);padding:11px 19px;border-radius:10px;font-weight:700;transition:.25s;box-shadow:0 8px 18px rgba(38,117,216,.18)}
.nav-button:hover,.btn-primary:hover{background:var(--blue-dark);border-color:var(--blue-dark);transform:translateY(-2px)}
.menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 11px;color:var(--blue-dark)}
.page-intro{background:linear-gradient(120deg,#f8fcff,#edf6ff 68%,#fff8ef);padding:65px 0 58px;border-bottom:1px solid #e5eef7}
.breadcrumb{font-size:14px;color:var(--muted);margin-bottom:24px}
.breadcrumb a{color:var(--blue)}
.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:55px;align-items:end}
.page-intro h1{font-size:clamp(34px,5vw,56px);line-height:1.2;letter-spacing:-.04em;margin:0 0 18px;color:#193452}
.intro-copy{font-size:17px;color:#62758b;max-width:680px;margin:0}
.intro-note{padding:22px 24px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
.intro-note strong{display:block;font-size:24px;color:var(--blue-dark);margin-bottom:4px}
.intro-note span{font-size:14px;color:var(--muted)}
section{padding:78px 0}
.section-head{max-width:720px;margin-bottom:30px}
.section-kicker{color:var(--blue);font-weight:800;font-size:13px;letter-spacing:.12em}
.section-head h2{font-size:clamp(26px,3vw,38px);line-height:1.3;margin:10px 0 12px;letter-spacing:-.025em}
.section-head p{color:var(--muted);margin:0;font-size:16px}
.soft-section{background:var(--paper)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
.tag{display:inline-flex;padding:7px 13px;border-radius:9px;background:#fff;border:1px solid var(--line);color:#55708c;font-size:14px}
.tag.active{background:var(--blue);color:#fff;border-color:var(--blue)}
.filter-bar{display:flex;justify-content:space-between;gap:20px;align-items:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:17px 0;margin-top:32px}
.filter-bar span{color:var(--muted);font-size:14px}
.filter-status{color:var(--blue-dark)!important;font-weight:700}
.content-list{display:grid;gap:18px}
.content-item{display:grid;grid-template-columns:260px 1fr;gap:27px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:.25s}
.content-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#bfd8ed}
.content-image{height:190px;border-radius:13px;overflow:hidden;background:#dbeaf6}
.content-image img{width:100%;height:100%;object-fit:cover}
.content-meta{display:flex;gap:10px;align-items:center;color:var(--orange);font-size:13px;font-weight:800}
.content-meta em{font-style:normal;color:#8ba0b3;font-weight:500}
.content-item h3{font-size:23px;line-height:1.4;margin:12px 0 8px;color:#243f5e}
.content-item p{color:var(--muted);font-size:15px;margin:0 0 17px;max-width:700px}
.text-link{color:var(--blue-dark);font-weight:700;font-size:14px}
.text-link:hover{color:var(--blue)}
.more-wrap{text-align:center;margin-top:28px}
.more-button{display:inline-block;padding:11px 24px;border:1px solid #b9d4ee;border-radius:10px;color:var(--blue-dark);background:#fff;font-weight:700;transition:.25s}
.more-button:hover{background:var(--blue-soft);border-color:var(--blue);transform:translateY(-2px)}
.feature-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:22px}
.feature-card{min-height:330px;position:relative;overflow:hidden;border-radius:20px;background:#d3e5f3}
.feature-card img{width:100%;height:330px;object-fit:cover}
.feature-overlay{position:absolute;inset:auto 0 0;padding:34px 30px 27px;color:#fff;background:linear-gradient(transparent,rgba(15,41,70,.88))}
.feature-overlay h3{font-size:27px;margin:0 0 7px}
.feature-overlay p{margin:0;color:#e5f1fc;font-size:14px}
.side-note{border:1px solid var(--line);border-radius:18px;background:#fff;padding:27px}
.side-note h3{font-size:21px;margin:0 0 15px}
.side-note p{color:var(--muted);font-size:14px;margin:0 0 20px}
.note-list{display:grid;gap:13px}
.note-list div{border-left:3px solid var(--orange);padding-left:13px;color:#506a84;font-size:14px}
.roles-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:22px;align-items:stretch}
.role-panel{background:#1f5da8;color:#fff;border-radius:18px;padding:32px}
.role-panel h3{font-size:25px;line-height:1.35;margin:0 0 12px}
.role-panel p{color:#d8eaff;margin:0}
.role-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px}
.role-tags span{border:1px solid rgba(255,255,255,.3);padding:7px 12px;border-radius:8px;font-size:13px}
.role-lines{display:grid;grid-template-columns:1fr 1fr;gap:15px}
.role-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:21px}
.role-card h3{font-size:17px;margin:0 0 7px}
.role-card p{color:var(--muted);font-size:14px;margin:0}
.timeline{position:relative;display:grid;gap:0;max-width:850px}
.timeline:before{content:"";position:absolute;left:78px;top:10px;bottom:10px;width:1px;background:#c8dced}
.timeline-item{display:grid;grid-template-columns:115px 1fr;gap:25px;padding:17px 0;position:relative}
.timeline-date{color:var(--orange);font-weight:800;font-size:14px}
.timeline-item h3{margin:0 0 5px;font-size:18px}
.timeline-item p{color:var(--muted);font-size:14px;margin:0}
.timeline-dot{position:absolute;left:73px;top:23px;width:11px;height:11px;background:var(--blue);border:3px solid #eaf4ff;border-radius:50%}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.faq-grid details{border:1px solid var(--line);border-radius:13px;background:#fff;padding:17px 19px}
.faq-grid summary{cursor:pointer;font-weight:700;color:#294766}
.faq-grid details p{color:var(--muted);font-size:14px;margin:12px 0 0}
.cta{padding:68px 0;background:#eaf5ff}
.cta-box{border:1px solid #c4dcf2;border-radius:22px;padding:38px 45px;background:linear-gradient(110deg,#f8fcff,#e5f2ff);display:flex;justify-content:space-between;gap:30px;align-items:center}
.cta h2{font-size:30px;margin:0 0 9px}
.cta p{color:var(--muted);margin:0}
.site-footer{background:#f3f8fc;border-top:1px solid var(--line);padding:38px 0 25px}
.footer-row{display:flex;justify-content:space-between;gap:30px;align-items:flex-start}
.footer-copy{color:var(--muted);font-size:13px;margin-top:9px}
.footer-links{display:flex;gap:19px;color:#5d7189;font-size:14px}
.footer-links a:hover{color:var(--blue)}
@media(max-width:900px){.intro-grid,.feature-layout,.roles-layout{grid-template-columns:1fr}.nav-links{gap:2px}.nav-link{padding:9px 10px}.content-item{grid-template-columns:210px 1fr}.hero-visual{min-height:300px}}
@media(max-width:700px){.container{width:min(100% - 30px,1180px)}.site-header,.nav-wrap{height:68px}.nav-links{display:none;position:absolute;left:15px;right:15px;top:76px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-link,.nav-button{display:block;text-align:center;margin:2px 0}.menu-btn{display:block}.page-intro{padding:46px 0}.page-intro h1{font-size:38px}.intro-note{margin-top:8px}section{padding:58px 0}.content-item{grid-template-columns:1fr;padding:14px}.content-image{height:210px}.role-lines,.faq-grid{grid-template-columns:1fr}.timeline:before{left:5px}.timeline-item{grid-template-columns:1fr;gap:3px;padding-left:27px}.timeline-dot{left:0;top:24px}.cta-box{padding:29px 24px;display:block}.cta .btn-primary{display:inline-block;margin-top:22px}.footer-row{display:block}.footer-links{margin-top:24px;flex-wrap:wrap}}