/* roulang page: index */
:root{
      --ink:#172333;--muted:#687789;--paper:#f6f8fb;--white:#fff;
      --navy:#12263d;--teal:#18a999;--gold:#f1b84b;--coral:#f17463;
      --line:#dce5ed;--soft:#eaf3f2;--radius:22px;--shadow:0 18px 50px rgba(23,35,51,.10);
      --shadow-sm:0 8px 24px rgba(23,35,51,.08)
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.85;font-size:15px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    .container{max-width:1180px}
    .topline{background:var(--navy);color:#cbd7e2;font-size:13px;padding:8px 0}
    .topline .notice{display:flex;justify-content:space-between;gap:20px}
    .site-header{background:rgba(255,255,255,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(220,229,237,.9);position:sticky;top:0;z-index:50}
    .navbar{min-height:76px}
    .brand{font-weight:800;font-size:23px;letter-spacing:.04em;color:var(--navy);display:flex;align-items:center;gap:10px}
    .brand-mark{width:34px;height:34px;border-radius:12px 12px 12px 4px;background:var(--teal);display:inline-grid;place-items:center;color:white;font-size:16px;box-shadow:5px 5px 0 var(--gold)}
    .nav-link{color:#536376!important;font-weight:600;padding:10px 12px!important;border-radius:10px}
    .nav-link:hover,.nav-link.active{color:var(--navy)!important;background:#edf5f4}
    .nav-cta{background:var(--navy);color:white;border-radius:999px;padding:11px 19px;font-weight:700}
    .nav-cta:hover{background:var(--teal);color:#fff;transform:translateY(-2px)}
    .hero{position:relative;min-height:690px;display:flex;align-items:center;overflow:hidden;background:var(--navy)}
    .hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(13,31,49,.93) 0%,rgba(13,31,49,.72) 47%,rgba(13,31,49,.25) 100%),url("/assets/images/backpic/back-1.webp") center/cover}
    .hero:after{content:"";position:absolute;width:480px;height:480px;border:1px solid rgba(255,255,255,.15);border-radius:50%;right:-120px;top:100px;box-shadow:0 0 0 45px rgba(255,255,255,.03),0 0 0 90px rgba(255,255,255,.025)}
    .hero-content{position:relative;z-index:2;color:#fff;padding:90px 0}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--gold);font-weight:800;letter-spacing:.12em;font-size:12px;text-transform:uppercase}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:currentColor}
    h1{font-size:clamp(42px,6vw,78px);line-height:1.12;letter-spacing:-.04em;margin:22px 0 22px;font-weight:850}
    .hero-copy{max-width:640px;color:#d8e4ed;font-size:18px;line-height:1.9}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:32px}
    .btn-main,.btn-ghost,.btn-light{border:0;border-radius:999px;padding:13px 23px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px}
    .btn-main{background:var(--teal);color:#fff;box-shadow:0 10px 24px rgba(24,169,153,.28)}
    .btn-main:hover{background:#25c0ad;color:#fff;transform:translateY(-2px)}
    .btn-ghost{border:1px solid rgba(255,255,255,.4);color:#fff;background:rgba(255,255,255,.08)}
    .btn-ghost:hover{background:#fff;color:var(--navy)}
    .btn-light{background:#fff;color:var(--navy)}
    .btn-light:hover{background:var(--gold);color:var(--navy)}
    .hero-points{display:flex;gap:28px;flex-wrap:wrap;margin-top:44px}
    .hero-point strong{display:block;font-size:28px;color:#fff;line-height:1.2}.hero-point span{color:#b9c9d7;font-size:13px}
    .campaign-strip{background:var(--gold);color:var(--navy);padding:12px 0;font-weight:800}
    .campaign-strip .inner{display:flex;justify-content:center;gap:30px;align-items:center;flex-wrap:wrap}
    section{padding:100px 0}
    .section-head{max-width:720px;margin-bottom:48px}
    .section-head h2{font-size:clamp(30px,4vw,48px);line-height:1.25;letter-spacing:-.03em;margin:12px 0 16px}
    .section-head p{color:var(--muted);font-size:16px;margin:0}
    .progress-section{background:#fff}
    .progress-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
    .progress-ring{width:270px;height:270px;margin:auto;border-radius:50%;background:conic-gradient(var(--teal) 0 68%,#e6edf0 68% 100%);display:grid;place-items:center;position:relative}
    .progress-ring:after{content:"";width:204px;height:204px;background:#fff;border-radius:50%;position:absolute}
    .ring-content{position:relative;z-index:1;text-align:center}.ring-content strong{display:block;font-size:54px;line-height:1;color:var(--navy)}.ring-content span{color:var(--muted);font-size:13px}
    .metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:24px}
    .metric{padding:22px;border:1px solid var(--line);border-radius:16px;background:#fbfcfd}.metric strong{font-size:27px;color:var(--navy);display:block}.metric span{font-size:13px;color:var(--muted)}
    .tier-section{background:#eef5f4}
    .tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .tier-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;position:relative;box-shadow:var(--shadow-sm);transition:.3s}
    .tier-card:hover{transform:translateY(-7px);box-shadow:var(--shadow)}
    .tier-card.featured{border:2px solid var(--teal);transform:translateY(-12px)}
    .popular{position:absolute;right:20px;top:20px;background:var(--coral);color:white;border-radius:999px;padding:4px 11px;font-size:11px;font-weight:800}
    .tier-card h3{font-size:24px;margin:0 0 8px}.tier-price{font-size:37px;font-weight:850;color:var(--navy);margin:18px 0}.tier-price small{font-size:13px;color:var(--muted);font-weight:400}
    .check-list{padding:0;margin:22px 0;list-style:none}.check-list li{padding:8px 0 8px 26px;position:relative;color:#506174}.check-list li:before{content:"✓";position:absolute;left:0;color:var(--teal);font-weight:900}
    .light-section{background:#fff}
    .feature-layout{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
    .feature-image{border-radius:28px;overflow:hidden;box-shadow:var(--shadow);position:relative}
    .feature-image img{width:100%;height:470px;object-fit:cover}
    .image-tag{position:absolute;left:22px;bottom:22px;background:rgba(18,38,61,.88);color:#fff;border-radius:14px;padding:13px 16px;font-size:13px}
    .feature-list{display:grid;gap:17px;margin-top:25px}.feature-item{display:flex;gap:15px;align-items:flex-start}.feature-icon{flex:0 0 38px;height:38px;border-radius:12px;background:var(--soft);color:var(--teal);display:grid;place-items:center;font-weight:900}.feature-item h4{font-size:17px;margin:0 0 3px}.feature-item p{margin:0;color:var(--muted);font-size:14px}
    .calendar-section{background:var(--navy);color:white}.calendar-section .section-head p{color:#b8c7d5}.calendar{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.calendar-item{border:1px solid rgba(255,255,255,.15);border-radius:18px;padding:22px;background:rgba(255,255,255,.06)}.calendar-date{color:var(--gold);font-size:13px;font-weight:800}.calendar-item h3{font-size:18px;margin:13px 0 7px}.calendar-item p{color:#b8c7d5;font-size:13px;margin:0}
    .ranking-section{background:#f4f7f8}.ranking-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:25px}.rank-list,.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px}.rank-row{display:grid;grid-template-columns:46px 1fr 100px;align-items:center;gap:14px;border-bottom:1px solid #edf1f3;padding:17px 0}.rank-row:last-child{border:0}.rank-no{width:32px;height:32px;border-radius:10px;background:#edf5f4;color:var(--teal);display:grid;place-items:center;font-weight:900}.rank-row:nth-child(2) .rank-no{background:var(--gold);color:var(--navy)}.rank-name{font-weight:800}.rank-desc{font-size:12px;color:var(--muted)}.rank-score{text-align:right;color:var(--teal);font-weight:800}
    .quote-card{background:var(--teal);color:white;display:flex;flex-direction:column;justify-content:space-between}.quote-card p{font-size:21px;line-height:1.7;margin:0}.quote-card small{color:#d9fffa;margin-top:25px}
    .story-section{background:#fff}.story-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:start}.story-copy p{color:var(--muted);font-size:16px}.story-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:28px}.story-stat{padding:20px;background:var(--paper);border-radius:16px}.story-stat strong{font-size:30px;color:var(--navy);display:block}.story-stat span{color:var(--muted);font-size:13px}
    .scope-section{background:#eef5f4}.scope-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.scope-card{padding:25px;background:#fff;border-radius:18px;border:1px solid var(--line);min-height:185px;transition:.25s}.scope-card:hover{border-color:var(--teal);box-shadow:var(--shadow-sm)}.scope-card b{color:var(--teal);font-size:13px}.scope-card h3{font-size:19px;margin:13px 0 7px}.scope-card p{margin:0;color:var(--muted);font-size:13px}
    .process-section{background:#fff}.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}.process-step{padding:24px 25px 24px 0;border-top:2px solid var(--line);position:relative}.process-step:not(:last-child):after{content:"→";position:absolute;right:14px;top:18px;color:var(--teal);font-size:24px}.step-no{font-size:12px;color:var(--coral);font-weight:900}.process-step h3{font-size:18px;margin:10px 0 7px}.process-step p{color:var(--muted);font-size:13px;margin:0}
    .case-section{background:#f4f7f8}.case-layout{display:grid;grid-template-columns:1fr 1fr;gap:22px}.case-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:.3s}.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.case-card img{width:100%;height:220px;object-fit:cover}.case-body{padding:23px}.case-body h3{font-size:21px;margin:0 0 8px}.case-body p{color:var(--muted);margin:0;font-size:14px}.case-label{display:inline-block;color:var(--teal);font-size:12px;font-weight:800;margin-bottom:10px}
    .trust-section{background:#fff}.trust-bar{display:flex;gap:15px;flex-wrap:wrap;justify-content:center;margin-top:30px}.trust-pill{border:1px solid var(--line);border-radius:999px;padding:12px 18px;color:#526579;background:#fbfcfd}.trust-pill strong{color:var(--navy);margin-right:5px}
    .faq-section{background:#eef5f4}.accordion-item{border:1px solid var(--line)!important;border-radius:14px!important;overflow:hidden;margin-bottom:12px;background:#fff}.accordion-button{font-weight:800;color:var(--navy);background:#fff;box-shadow:none!important;padding:20px}.accordion-button:not(.collapsed){color:var(--teal);background:#f7fbfa}.accordion-body{color:var(--muted);padding:0 20px 20px}
    .news-section{background:#fff}.news-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:28px}.news-list{border-top:1px solid var(--line)}.news-item{display:grid;grid-template-columns:92px 1fr auto;gap:18px;align-items:center;padding:23px 0;border-bottom:1px solid var(--line)}.news-date{color:var(--teal);font-weight:800;font-size:13px}.news-item h3{font-size:18px;margin:0 0 4px}.news-item p{font-size:13px;color:var(--muted);margin:0}.more{color:var(--coral);font-weight:800;font-size:13px;white-space:nowrap}.news-aside{background:var(--navy);color:#fff;border-radius:var(--radius);padding:28px}.news-aside h3{font-size:22px}.news-aside p{color:#b9c8d5;font-size:14px}.news-aside ul{list-style:none;padding:0;margin:25px 0 0}.news-aside li{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.14);font-size:14px}
    .support-section{background:var(--coral);color:#fff;position:relative;overflow:hidden}.support-section:after{content:"";position:absolute;width:400px;height:400px;border:1px solid rgba(255,255,255,.2);border-radius:50%;right:-100px;top:-160px}.support-layout{display:flex;justify-content:space-between;align-items:center;gap:40px;position:relative;z-index:1}.support-layout h2{font-size:clamp(30px,4vw,46px);line-height:1.25;margin:12px 0}.support-layout p{max-width:650px;color:#ffe9e5;font-size:16px}.support-form{display:flex;gap:8px;flex-wrap:wrap}.support-form input{border:0;border-radius:999px;padding:14px 18px;min-width:250px;outline:0}.support-form input:focus{box-shadow:0 0 0 4px rgba(255,255,255,.25)}
    footer{background:#101d2c;color:#aebdca;padding:55px 0 25px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}.footer-brand{color:#fff;font-size:22px;font-weight:800;margin-bottom:13px}.footer-title{color:#fff;font-weight:800;margin-bottom:16px}.footer-links{display:grid;gap:9px;font-size:14px}.footer-links a:hover{color:var(--gold)}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:12px}
    :focus-visible{outline:3px solid rgba(24,169,153,.42);outline-offset:3px}
    @media(max-width:991px){.progress-layout,.feature-layout,.story-grid,.ranking-layout,.news-layout{grid-template-columns:1fr;gap:38px}.scope-grid{grid-template-columns:repeat(2,1fr)}.tier-grid{grid-template-columns:1fr 1fr}.tier-card.featured{transform:none}.process-grid{grid-template-columns:repeat(2,1fr);gap:20px}.process-step:not(:last-child):after{display:none}.footer-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:767px){.topline .notice{justify-content:center;text-align:center}.topline .notice span:last-child{display:none}.hero{min-height:620px}.hero-content{padding:75px 0}.hero-copy{font-size:16px}.hero-points{gap:18px}.hero-point strong{font-size:23px}section{padding:70px 0}.calendar{grid-template-columns:1fr 1fr}.news-item{grid-template-columns:75px 1fr}.news-item .more{grid-column:2}.support-layout{display:block}.support-form{margin-top:25px}.footer-grid{gap:25px}}
    @media(max-width:520px){h1{font-size:43px}.tier-grid,.scope-grid,.calendar,.process-grid,.story-stats{grid-template-columns:1fr}.news-item{display:block}.news-date{margin-bottom:5px}.news-item h3{margin-bottom:6px}.news-item .more{display:inline-block;margin-top:10px}.feature-image img{height:330px}.progress-ring{width:230px;height:230px}.progress-ring:after{width:174px;height:174px}.ring-content strong{font-size:45px}.footer-grid{grid-template-columns:1fr}.nav-cta{display:inline-block;margin-top:8px}}

/* roulang page: category2 */
:root{
      --ink:#172333;--muted:#687789;--paper:#f6f8fb;--white:#fff;
      --navy:#12263d;--teal:#18a999;--gold:#f1b84b;--coral:#f17463;
      --line:#dce5ed;--soft:#eaf3f2;--radius:22px;
      --shadow:0 18px 50px rgba(23,35,51,.10);
      --shadow-sm:0 8px 24px rgba(23,35,51,.08)
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.85;font-size:15px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    .container{max-width:1180px}
    .site-header{background:rgba(255,255,255,.95);backdrop-filter:blur(16px);border-bottom:1px solid rgba(220,229,237,.9);position:sticky;top:0;z-index:50}
    .navbar{min-height:76px}
    .brand{font-weight:800;font-size:23px;letter-spacing:.04em;color:var(--navy);display:flex;align-items:center;gap:10px}
    .brand-mark{width:34px;height:34px;border-radius:12px 12px 12px 4px;background:var(--teal);display:inline-grid;place-items:center;color:white;font-size:16px;box-shadow:5px 5px 0 var(--gold)}
    .nav-link{color:#536376!important;font-weight:600;padding:10px 12px!important;border-radius:10px}
    .nav-link:hover,.nav-link.active{color:var(--navy)!important;background:#edf5f4}
    .nav-cta{background:var(--navy);color:white;border-radius:999px;padding:11px 19px;font-weight:700}
    .nav-cta:hover{background:var(--teal);color:#fff;transform:translateY(-2px)}
    .navbar-toggler{padding:8px}
    .navbar-toggler-icon{filter:brightness(0) saturate(100%) invert(16%) sepia(16%) saturate(1079%) hue-rotate(173deg) brightness(91%)}
    .sub-hero{position:relative;min-height:430px;display:flex;align-items:center;overflow:hidden;background:var(--navy)}
    .sub-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(13,31,49,.94),rgba(13,31,49,.72) 52%,rgba(13,31,49,.28)),url("/assets/images/backpic/back-2.jpg") center/cover}
    .sub-hero:after{content:"";position:absolute;width:390px;height:390px;border:1px solid rgba(255,255,255,.16);border-radius:50%;right:-90px;top:25px;box-shadow:0 0 0 35px rgba(255,255,255,.03),0 0 0 72px rgba(255,255,255,.025)}
    .hero-content{position:relative;z-index:2;color:#fff;padding:76px 0}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--gold);font-weight:800;letter-spacing:.12em;font-size:12px}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:currentColor}
    h1{font-size:clamp(38px,6vw,68px);line-height:1.2;letter-spacing:-.045em;margin:18px 0 18px;max-width:760px}
    .hero-copy{max-width:680px;color:#d8e4ed;font-size:18px;line-height:1.9}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:28px}
    .btn-main,.btn-ghost,.btn-light{border:0;border-radius:999px;padding:13px 23px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px}
    .btn-main{background:var(--teal);color:#fff;box-shadow:0 10px 24px rgba(24,169,153,.28)}
    .btn-main:hover{background:#25c0ad;color:#fff;transform:translateY(-2px)}
    .btn-ghost{border:1px solid rgba(255,255,255,.4);color:#fff;background:rgba(255,255,255,.08)}
    .btn-ghost:hover{background:#fff;color:var(--navy)}
    .btn-light{background:#fff;color:var(--navy)}
    .btn-light:hover{background:var(--gold);color:var(--navy)}
    section{padding:92px 0}
    .section-head{max-width:720px;margin-bottom:42px}
    .section-head h2{font-size:clamp(30px,4vw,48px);line-height:1.25;letter-spacing:-.03em;margin:12px 0 16px}
    .section-head p{color:var(--muted);font-size:16px;margin:0}
    .light-section{background:#fff}
    .intro-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
    .intro-text p{font-size:17px;color:#536376;margin:0 0 18px}
    .image-frame{border-radius:28px;overflow:hidden;box-shadow:var(--shadow);position:relative}
    .image-frame img{width:100%;height:430px;object-fit:cover}
    .image-note{position:absolute;left:22px;bottom:22px;background:rgba(18,38,61,.9);color:#fff;border-radius:14px;padding:12px 16px;font-size:13px}
    .service-section{background:#eef5f4}
    .service-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}
    .service-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:.3s;box-shadow:var(--shadow-sm)}
    .service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
    .service-card.large{grid-row:span 2;padding:38px}
    .service-no{color:var(--teal);font-size:13px;font-weight:900;letter-spacing:.1em}
    .service-card h3{font-size:25px;margin:14px 0 10px}
    .service-card p{color:var(--muted);margin:0}
    .service-list{list-style:none;padding:0;margin:24px 0 0}
    .service-list li{padding:10px 0;border-top:1px solid #edf1f3;color:#506174}
    .service-list li:before{content:"＋";color:var(--teal);font-weight:bold;margin-right:9px}
    .scenario-section{background:#fff}
    .scenario-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .scenario-card{min-height:220px;border:1px solid var(--line);border-radius:18px;padding:24px;background:var(--paper);transition:.25s}
    .scenario-card:hover{background:#fff;border-color:var(--teal);box-shadow:var(--shadow-sm)}
    .scenario-icon{width:42px;height:42px;border-radius:14px;background:var(--soft);color:var(--teal);display:grid;place-items:center;font-size:19px;font-weight:900}
    .scenario-card h3{font-size:19px;margin:19px 0 8px}
    .scenario-card p{font-size:14px;color:var(--muted);margin:0}
    .quote-section{background:var(--navy);color:#fff}
    .quote-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:center}
    .quote-section .section-head p{color:#b8c7d5}
    .quote-mark{font-size:100px;line-height:.7;color:var(--gold);font-family:Georgia,serif}
    blockquote{font-size:clamp(24px,3vw,38px);line-height:1.55;margin:0 0 20px;font-weight:700}
    .quote-source{color:#b9c9d7}
    .process-section{background:#f4f7f8}
    .process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .process-item{position:relative;padding:26px 22px;background:#fff;border-radius:18px;border:1px solid var(--line)}
    .process-item:after{content:"→";position:absolute;right:-17px;top:44%;color:var(--teal);font-size:22px;font-weight:bold}
    .process-item:last-child:after{display:none}
    .process-number{font-size:34px;font-weight:900;color:var(--gold);line-height:1}
    .process-item h3{font-size:18px;margin:18px 0 8px}
    .process-item p{font-size:14px;color:var(--muted);margin:0}
    .standard-section{background:#fff}
    .standard-layout{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
    .standard-list{display:grid;gap:14px}
    .standard-row{display:flex;gap:15px;padding:19px 0;border-bottom:1px solid var(--line)}
    .standard-row b{min-width:100px;color:var(--navy)}
    .standard-row span{color:var(--muted)}
    .content-panel{background:var(--soft);border-radius:24px;padding:32px}
    .content-panel h3{font-size:26px;margin:0 0 14px}
    .content-panel p{color:#536376;margin-bottom:20px}
    .tag-list{display:flex;gap:9px;flex-wrap:wrap}
    .tag{border:1px solid #b8ddd8;background:#fff;color:#217b72;border-radius:999px;padding:7px 13px;font-size:13px}
    .case-section{background:#eef5f4}
    .case-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px}
    .case-feature{background:var(--navy);border-radius:24px;overflow:hidden;color:#fff}
    .case-feature img{width:100%;height:250px;object-fit:cover;opacity:.84}
    .case-feature-body{padding:28px}
    .case-feature h3{font-size:27px;margin:0 0 10px}
    .case-feature p{color:#c4d2dd;margin:0}
    .case-points{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .case-point{background:#fff;border:1px solid var(--line);border-radius:18px;padding:23px}
    .case-point b{color:var(--teal);font-size:13px}
    .case-point h3{font-size:18px;margin:10px 0 6px}
    .case-point p{margin:0;color:var(--muted);font-size:14px}
    .faq-section{background:#fff}
    .accordion-item{border:1px solid var(--line)!important;border-radius:14px!important;overflow:hidden;margin-bottom:12px}
    .accordion-button{font-weight:700;color:var(--navy);background:#fff;box-shadow:none!important;padding:20px 22px}
    .accordion-button:not(.collapsed){background:var(--soft);color:var(--navy)}
    .accordion-body{color:var(--muted);padding:0 22px 21px;background:var(--soft)}
    .cta-section{padding:78px 0;background:var(--teal);color:#fff}
    .cta-box{display:flex;align-items:center;justify-content:space-between;gap:35px}
    .cta-box h2{font-size:clamp(29px,4vw,45px);margin:0 0 10px;line-height:1.3}
    .cta-box p{margin:0;color:#ddfffb;max-width:680px}
    footer{background:#102237;color:#c4d2dd;padding:64px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:35px;padding-bottom:46px}
    .footer-brand{color:#fff;font-size:21px;font-weight:800;display:flex;align-items:center;gap:10px;margin-bottom:17px}
    footer p{font-size:14px;line-height:1.8;margin:0;color:#aebdca}
    .footer-title{color:#fff;font-weight:800;margin-bottom:14px}
    .footer-links{display:grid;gap:8px;font-size:14px}
    .footer-links a:hover,.footer-bottom a:hover{color:var(--gold)}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.13);padding-top:22px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:12px;color:#91a5b6}
    :focus-visible{outline:3px solid rgba(241,184,75,.75);outline-offset:3px}
    @media(max-width:1024px){
      .nav-link{padding-left:8px!important;padding-right:8px!important;font-size:14px}
      .intro-layout,.standard-layout,.quote-layout{gap:35px}
      .scenario-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      section{padding:70px 0}
      .sub-hero{min-height:500px}
      .hero-content{padding:62px 0}
      .intro-layout,.service-grid,.standard-layout,.case-layout,.quote-layout{grid-template-columns:1fr}
      .service-card.large{grid-row:auto}
      .process-grid{grid-template-columns:repeat(2,1fr)}
      .process-item:after{display:none}
      .cta-box{display:block}
      .cta-box .btn-light{margin-top:25px}
    }
    @media(max-width:520px){
      body{font-size:14px}
      .brand{font-size:20px}
      h1{font-size:40px}
      .hero-copy{font-size:16px}
      .scenario-grid,.process-grid,.case-points,.footer-grid{grid-template-columns:1fr}
      .image-frame img{height:330px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-bottom:9px}
    }

/* roulang page: category3 */
:root{
      --ink:#172333;--muted:#687789;--paper:#f6f8fb;--white:#fff;
      --navy:#12263d;--teal:#18a999;--gold:#f1b84b;--coral:#f17463;
      --line:#dce5ed;--soft:#eaf3f2;--radius:22px;
      --shadow:0 18px 50px rgba(23,35,51,.10);--shadow-sm:0 8px 24px rgba(23,35,51,.08)
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.85}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    .container{max-width:1180px}
    .site-header{background:rgba(255,255,255,.95);backdrop-filter:blur(16px);border-bottom:1px solid rgba(220,229,237,.9);position:sticky;top:0;z-index:50}
    .navbar{min-height:76px}
    .brand{font-weight:800;font-size:23px;letter-spacing:.04em;color:var(--navy);display:flex;align-items:center;gap:10px}
    .brand-mark{width:34px;height:34px;border-radius:12px 12px 12px 4px;background:var(--teal);display:inline-grid;place-items:center;color:#fff;font-size:16px;box-shadow:5px 5px 0 var(--gold)}
    .nav-link{color:#536376!important;font-weight:600;padding:10px 12px!important;border-radius:10px}
    .nav-link:hover,.nav-link.active{color:var(--navy)!important;background:#edf5f4}
    .nav-cta{background:var(--navy);color:#fff;border-radius:999px;padding:11px 19px;font-weight:700}
    .nav-cta:hover{background:var(--teal);color:#fff;transform:translateY(-2px)}
    .navbar-toggler{padding:7px;border-radius:10px}
    .hero-inner{position:relative;overflow:hidden;background:var(--navy);color:#fff;padding:92px 0 88px}
    .hero-inner:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(13,31,49,.94),rgba(13,31,49,.62)),url("/assets/images/backpic/back-2.jpg") center/cover}
    .hero-inner:after{content:"";position:absolute;width:420px;height:420px;border:1px solid rgba(255,255,255,.14);border-radius:50%;right:-80px;top:35px;box-shadow:0 0 0 35px rgba(255,255,255,.03),0 0 0 75px rgba(255,255,255,.025)}
    .hero-inner .container{position:relative;z-index:1}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--gold);font-weight:800;letter-spacing:.12em;font-size:12px}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:currentColor}
    h1{font-size:clamp(38px,6vw,70px);line-height:1.16;letter-spacing:-.05em;margin:17px 0 20px}
    .hero-inner p{max-width:680px;color:#d6e3ec;font-size:18px;margin:0}
    .hero-meta{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
    .status-pill{border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);border-radius:999px;padding:8px 14px;color:#e5f1f2;font-size:13px}
    .status-pill i{display:inline-block;width:7px;height:7px;background:var(--teal);border-radius:50%;margin-right:7px}
    section{padding:92px 0}
    .section-head{max-width:720px;margin-bottom:42px}
    .section-head h2{font-size:clamp(30px,4vw,48px);line-height:1.25;letter-spacing:-.04em;margin:12px 0 15px}
    .section-head p{color:var(--muted);font-size:16px;margin:0}
    .intro{background:#fff}
    .intro-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
    .intro-copy p{color:var(--muted);font-size:16px}
    .accent-line{width:70px;height:4px;background:var(--teal);border-radius:4px;margin:24px 0}
    .image-frame{border-radius:28px;overflow:hidden;box-shadow:var(--shadow);position:relative}
    .image-frame img{width:100%;height:430px;object-fit:cover}
    .image-label{position:absolute;bottom:20px;left:20px;background:rgba(18,38,61,.9);color:#fff;border-radius:14px;padding:12px 16px;font-size:13px}
    .service-section{background:#eef5f4}
    .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .service-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:29px;min-height:245px;transition:.3s}
    .service-card:hover{transform:translateY(-7px);box-shadow:var(--shadow)}
    .service-no{color:var(--teal);font-weight:900;font-size:13px;letter-spacing:.08em}
    .service-card h3{font-size:22px;margin:18px 0 9px}
    .service-card p{color:var(--muted);font-size:14px;margin:0}
    .value-section{background:#fff}
    .value-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px;align-items:start}
    .value-panel{background:var(--navy);color:#fff;border-radius:26px;padding:34px;position:sticky;top:105px}
    .value-panel h3{font-size:26px;margin:0 0 14px}
    .value-panel p{color:#c5d3df;margin:0}
    .number-list{display:grid;gap:14px}
    .number-item{display:flex;gap:18px;padding:20px;border-bottom:1px solid var(--line)}
    .number-item:last-child{border-bottom:0}
    .number-item b{color:var(--teal);font-size:24px;line-height:1}
    .number-item h4{margin:0 0 4px;font-size:18px}
    .number-item p{margin:0;color:var(--muted);font-size:14px}
    .scene-section{background:#f4f7f8}
    .scene-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
    .scene-card{min-height:230px;border-radius:24px;overflow:hidden;position:relative;background-size:cover;background-position:center;color:#fff;padding:28px;display:flex;align-items:end}
    .scene-card:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(18,38,61,.88),rgba(18,38,61,.08))}
    .scene-card>div{position:relative;z-index:1}
    .scene-card h3{font-size:23px;margin:0 0 5px}
    .scene-card p{margin:0;color:#e0e9ef;font-size:14px}
    .scene-card.tall{grid-row:span 2;min-height:480px}
    .process-section{background:#fff}
    .process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
    .process-card{border-top:3px solid var(--teal);padding:24px 20px;background:#f8fafb;border-radius:0 0 18px 18px}
    .process-card span{color:var(--coral);font-weight:900;font-size:13px}
    .process-card h3{font-size:18px;margin:13px 0 7px}
    .process-card p{color:var(--muted);font-size:13px;margin:0}
    .case-section{background:var(--navy);color:#fff}
    .case-section .section-head p{color:#bdccda}
    .case-layout{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .case-card{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.15);border-radius:22px;padding:28px}
    .case-card strong{display:block;color:var(--gold);font-size:13px;margin-bottom:13px}
    .case-card h3{font-size:23px;margin:0 0 10px}
    .case-card p{color:#c3d1dc;margin:0}
    .quote-section{background:#eef5f4}
    .quote-box{max-width:900px;margin:auto;background:#fff;border-left:5px solid var(--teal);border-radius:0 22px 22px 0;padding:32px 38px;box-shadow:var(--shadow-sm)}
    .quote-box p{font-size:22px;line-height:1.7;margin:0;color:var(--navy)}
    .quote-box small{display:block;color:var(--muted);margin-top:16px}
    .faq-section{background:#fff}
    .accordion-item{border:1px solid var(--line)!important;border-radius:14px!important;margin-bottom:12px;overflow:hidden}
    .accordion-button{font-weight:700;color:var(--navy);background:#fff;box-shadow:none!important;padding:19px 22px}
    .accordion-button:not(.collapsed){background:var(--soft);color:var(--navy)}
    .accordion-body{color:var(--muted);padding:0 22px 20px}
    .cta-section{padding:76px 0;background:var(--teal);color:#fff}
    .cta-layout{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta-layout h2{font-size:clamp(28px,4vw,44px);margin:0 0 9px}
    .cta-layout p{margin:0;color:#d9fffa;max-width:650px}
    .btn-light{background:#fff;color:var(--navy);border-radius:999px;padding:13px 23px;font-weight:800;border:0}
    .btn-light:hover{background:var(--gold);transform:translateY(-2px)}
    footer{background:#0d1f31;color:#d4e0e8;padding:62px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:34px}
    .footer-brand{font-size:21px;font-weight:800;color:#fff;display:flex;gap:10px;align-items:center}
    footer p{color:#9fb1bf;font-size:14px;margin-top:20px;max-width:260px}
    .footer-title{color:#fff;font-weight:800;margin-bottom:16px}
    .footer-links{display:grid;gap:9px;color:#9fb1bf;font-size:14px}
    .footer-links a:hover,footer a:hover{color:var(--gold)}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:42px;padding-top:20px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#8ea3b3;font-size:12px}
    :focus-visible{outline:3px solid rgba(241,184,75,.7);outline-offset:3px}
    @media(max-width:1024px){.nav-link{padding:9px 8px!important;font-size:13px}.intro-layout,.value-layout{gap:35px}.footer-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){section{padding:68px 0}.hero-inner{padding:70px 0}.intro-layout,.value-layout,.case-layout,.scene-grid{grid-template-columns:1fr}.value-panel{position:static}.service-grid{grid-template-columns:repeat(2,1fr)}.process-grid{grid-template-columns:repeat(2,1fr)}.scene-card.tall{grid-row:auto;min-height:280px}.cta-layout{display:block}.cta-layout .btn-light{margin-top:25px}.navbar-collapse{padding:16px 0}.nav-cta{display:inline-block;margin-top:9px}}
    @media(max-width:520px){h1{font-size:40px}.hero-inner p{font-size:16px}.service-grid,.process-grid,.footer-grid{grid-template-columns:1fr}.service-card{min-height:0}.image-frame img{height:300px}.quote-box{padding:25px 22px}.quote-box p{font-size:18px}.footer-bottom{display:grid}}

/* roulang page: category1 */
:root{
      --ink:#172333;--muted:#687789;--paper:#f6f8fb;--white:#fff;
      --navy:#12263d;--teal:#18a999;--gold:#f1b84b;--coral:#f17463;
      --line:#dce5ed;--soft:#eaf3f2;--radius:22px;
      --shadow:0 18px 50px rgba(23,35,51,.10);
      --shadow-sm:0 8px 24px rgba(23,35,51,.08)
    }
    *,*:before,*:after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.85;font-size:15px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    .container{max-width:1180px}
    .site-header{background:rgba(255,255,255,.95);backdrop-filter:blur(16px);border-bottom:1px solid rgba(220,229,237,.9);position:sticky;top:0;z-index:50}
    .navbar{min-height:76px}
    .brand{font-weight:800;font-size:23px;letter-spacing:.04em;color:var(--navy);display:flex;align-items:center;gap:10px}
    .brand-mark{width:34px;height:34px;border-radius:12px 12px 12px 4px;background:var(--teal);display:inline-grid;place-items:center;color:white;font-size:16px;box-shadow:5px 5px 0 var(--gold)}
    .nav-link{color:#536376!important;font-weight:600;padding:10px 12px!important;border-radius:10px}
    .nav-link:hover,.nav-link.active{color:var(--navy)!important;background:#edf5f4}
    .nav-cta{background:var(--navy);color:white;border-radius:999px;padding:11px 19px;font-weight:700}
    .nav-cta:hover{background:var(--teal);color:#fff;transform:translateY(-2px)}
    .hero{position:relative;min-height:620px;display:flex;align-items:center;overflow:hidden;background:var(--navy)}
    .hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(13,31,49,.95),rgba(13,31,49,.73) 48%,rgba(13,31,49,.22)),url("/assets/images/backpic/back-2.jpg") center/cover}
    .hero:after{content:"";position:absolute;width:480px;height:480px;border:1px solid rgba(255,255,255,.15);border-radius:50%;right:-120px;top:90px;box-shadow:0 0 0 45px rgba(255,255,255,.03),0 0 0 90px rgba(255,255,255,.025)}
    .hero-content{position:relative;z-index:2;color:#fff;padding:82px 0}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--gold);font-weight:800;letter-spacing:.12em;font-size:12px}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:currentColor}
    h1{font-size:clamp(40px,6vw,72px);line-height:1.15;letter-spacing:-.05em;margin:22px 0 20px;max-width:700px}
    .hero-copy{max-width:630px;color:#d8e4ed;font-size:18px;line-height:1.9}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:30px}
    .btn-main,.btn-ghost,.btn-light{border:0;border-radius:999px;padding:13px 23px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px}
    .btn-main{background:var(--teal);color:#fff;box-shadow:0 10px 24px rgba(24,169,153,.28)}
    .btn-main:hover{background:#25c0ad;color:#fff;transform:translateY(-2px)}
    .btn-ghost{border:1px solid rgba(255,255,255,.4);color:#fff;background:rgba(255,255,255,.08)}
    .btn-ghost:hover{background:#fff;color:var(--navy)}
    .btn-light{background:#fff;color:var(--navy)}
    .btn-light:hover{background:var(--gold);color:var(--navy)}
    .hero-points{display:flex;gap:30px;flex-wrap:wrap;margin-top:40px}
    .hero-point strong{display:block;font-size:27px;color:#fff;line-height:1.2}
    .hero-point span{color:#b9c9d7;font-size:13px}
    section{padding:92px 0}
    .section-head{max-width:720px;margin-bottom:44px}
    .section-head h2{font-size:clamp(30px,4vw,48px);line-height:1.25;letter-spacing:-.03em;margin:12px 0 16px}
    .section-head p{color:var(--muted);font-size:16px;margin:0}
    .light-section{background:#fff}
    .intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:start}
    .intro-copy{font-size:17px;color:#506174}
    .quote-panel{background:var(--navy);color:#fff;padding:32px;border-radius:var(--radius);box-shadow:var(--shadow)}
    .quote-panel b{color:var(--gold);font-size:13px;letter-spacing:.1em}
    .quote-panel p{font-size:25px;line-height:1.55;margin:20px 0 0}
    .service-section{background:#eef5f4}
    .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .service-card,.scene-card,.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:.3s}
    .service-card:hover,.scene-card:hover,.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
    .service-card img{width:100%;height:190px;object-fit:cover}
    .card-body{padding:25px}
    .card-index{color:var(--teal);font-weight:900;font-size:12px;letter-spacing:.1em}
    .card-body h3{font-size:22px;margin:9px 0 8px}
    .card-body p{color:var(--muted);margin:0;font-size:14px}
    .split-section{background:#fff}
    .split-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:68px;align-items:center}
    .feature-image{border-radius:28px;overflow:hidden;box-shadow:var(--shadow);position:relative}
    .feature-image img{width:100%;height:440px;object-fit:cover}
    .image-tag{position:absolute;left:22px;bottom:22px;background:rgba(18,38,61,.88);color:#fff;border-radius:14px;padding:13px 16px;font-size:13px}
    .check-list{padding:0;margin:24px 0;list-style:none}
    .check-list li{padding:9px 0 9px 28px;position:relative;color:#506174;border-bottom:1px solid #edf1f3}
    .check-list li:before{content:"✓";position:absolute;left:0;color:var(--teal);font-weight:900}
    .stats-section{background:var(--navy);color:#fff}
    .stats-section .section-head p{color:#b8c7d5}
    .stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
    .stat{border:1px solid rgba(255,255,255,.14);padding:25px;border-radius:18px;background:rgba(255,255,255,.06)}
    .stat strong{font-size:36px;display:block;color:var(--gold);line-height:1.2}
    .stat span{color:#c4d1dc;font-size:14px}
    .scene-section{background:#f4f7f8}
    .scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .scene-card{padding:24px;min-height:190px}
    .scene-card .icon{width:42px;height:42px;border-radius:13px;background:var(--soft);color:var(--teal);display:grid;place-items:center;font-weight:900;font-size:18px}
    .scene-card h3{font-size:19px;margin:15px 0 6px}
    .scene-card p{color:var(--muted);font-size:13px;margin:0}
    .process-section{background:#fff}
    .process-list{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .process-item{position:relative;padding:27px 22px;border-top:3px solid var(--teal);background:#f8fafb;border-radius:0 0 18px 18px}
    .process-item b{font-size:38px;color:#d8e9e7;line-height:1}
    .process-item h3{font-size:18px;margin:12px 0 6px}
    .process-item p{font-size:13px;color:var(--muted);margin:0}
    .case-section{background:#eef5f4}
    .case-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .case-card{display:grid;grid-template-columns:190px 1fr}
    .case-card img{width:100%;height:100%;min-height:220px;object-fit:cover}
    .case-card .card-body{padding:27px}
    .case-card h3{font-size:21px}
    .tag{display:inline-block;color:var(--teal);background:#e6f5f2;border-radius:999px;padding:4px 10px;font-size:12px;font-weight:800}
    .faq-section{background:#fff}
    .faq-wrap{max-width:900px}
    .accordion-item{border:1px solid var(--line)!important;border-radius:14px!important;margin-bottom:12px;overflow:hidden}
    .accordion-button{font-weight:800;color:var(--ink);padding:20px 22px;background:#fff;box-shadow:none!important}
    .accordion-button:not(.collapsed){color:var(--teal);background:#f1f8f7}
    .accordion-body{color:var(--muted);padding:0 22px 22px}
    .cta-section{background:var(--teal);color:#fff}
    .cta-box{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta-box h2{font-size:clamp(29px,4vw,46px);line-height:1.25;margin:10px 0}
    .cta-box p{color:#d9fffa;max-width:650px;margin:0}
    footer{background:#0d1d2e;color:#c2cfda;padding:62px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:35px}
    .footer-brand{font-size:21px;font-weight:800;color:#fff;display:flex;gap:10px;align-items:center}
    footer p{font-size:14px;max-width:270px;margin-top:20px;color:#9eafbd}
    .footer-title{font-weight:800;color:#fff;margin-bottom:15px}
    .footer-links{display:grid;gap:9px;font-size:13px}
    .footer-links a:hover{color:var(--gold)}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:42px;padding-top:20px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;font-size:12px;color:#91a3b2}
    footer .brand-mark{box-shadow:4px 4px 0 var(--gold)}
    :focus-visible{outline:3px solid rgba(24,169,153,.45);outline-offset:3px}
    @media(max-width:1024px){
      .nav-link{padding-left:8px!important;padding-right:8px!important;font-size:13px}
      .intro-grid,.split-grid{gap:38px}.scene-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      section{padding:70px 0}.hero{min-height:650px}.hero-content{padding:65px 0}
      .service-grid,.stat-grid,.process-list{grid-template-columns:repeat(2,1fr)}
      .intro-grid,.split-grid,.case-grid{grid-template-columns:1fr}
      .case-card{grid-template-columns:150px 1fr}.cta-box{display:block}
      .cta-box .btn-light{margin-top:25px}
    }
    @media(max-width:520px){
      .brand{font-size:20px}.hero h1{font-size:43px}.hero-copy{font-size:16px}
      .hero-points{gap:18px}.service-grid,.stat-grid,.scene-grid,.process-list{grid-template-columns:1fr}
      .case-card{display:block}.case-card img{height:210px}
      .footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}
    }

/* roulang page: category5 */
:root{--ink:#172333;--muted:#687789;--paper:#f6f8fb;--white:#fff;--navy:#12263d;--teal:#18a999;--gold:#f1b84b;--coral:#f17463;--line:#dce5ed;--soft:#eaf3f2;--radius:22px;--shadow:0 18px 50px rgba(23,35,51,.10);--shadow-sm:0 8px 24px rgba(23,35,51,.08)}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.85;font-size:15px}a{color:inherit;text-decoration:none;transition:.25s ease}img{max-width:100%;display:block}button,input,textarea{font:inherit}.container{max-width:1180px}
    .site-header{background:rgba(255,255,255,.95);backdrop-filter:blur(16px);border-bottom:1px solid rgba(220,229,237,.9);position:sticky;top:0;z-index:50}.navbar{min-height:76px}.brand{font-weight:800;font-size:23px;letter-spacing:.04em;color:var(--navy);display:flex;align-items:center;gap:10px}.brand-mark{width:34px;height:34px;border-radius:12px 12px 12px 4px;background:var(--teal);display:inline-grid;place-items:center;color:#fff;font-size:16px;box-shadow:5px 5px 0 var(--gold)}.nav-link{color:#536376!important;font-weight:600;padding:10px 12px!important;border-radius:10px}.nav-link:hover,.nav-link.active{color:var(--navy)!important;background:#edf5f4}.nav-cta{background:var(--navy);color:#fff;border-radius:999px;padding:11px 19px;font-weight:700}.nav-cta:hover{background:var(--teal);color:#fff;transform:translateY(-2px)}
    .hero{position:relative;min-height:620px;display:flex;align-items:center;overflow:hidden;background:var(--navy)}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(13,31,49,.95),rgba(13,31,49,.72) 48%,rgba(13,31,49,.28)),url("/assets/images/backpic/back-2.jpg") center/cover}.hero-content{position:relative;z-index:2;color:#fff;padding:88px 0}.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--gold);font-weight:800;letter-spacing:.12em;font-size:12px}.eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:currentColor}.hero h1{font-size:clamp(38px,5.2vw,70px);line-height:1.2;letter-spacing:-.04em;margin:18px 0}.hero-copy{max-width:640px;color:#d8e4ed;font-size:18px;line-height:1.9}.hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:30px}.btn-main,.btn-ghost,.btn-light{border:0;border-radius:999px;padding:13px 23px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px}.btn-main{background:var(--teal);color:#fff;box-shadow:0 10px 24px rgba(24,169,153,.28)}.btn-main:hover{background:#25c0ad;color:#fff;transform:translateY(-2px)}.btn-ghost{border:1px solid rgba(255,255,255,.4);color:#fff;background:rgba(255,255,255,.08)}.btn-ghost:hover{background:#fff;color:var(--navy)}.btn-light{background:#fff;color:var(--navy)}.btn-light:hover{background:var(--gold);color:var(--navy)}
    .launch-panel{background:rgba(255,255,255,.95);color:var(--ink);border-radius:26px;padding:27px;box-shadow:var(--shadow);max-width:420px;margin-left:auto}.launch-panel img{width:100%;height:170px;object-fit:cover;border-radius:17px;margin-bottom:20px}.launch-label{color:var(--coral);font-size:12px;font-weight:800;letter-spacing:.08em}.launch-panel h2{font-size:23px;line-height:1.4;margin:8px 0}.launch-panel p{color:var(--muted);font-size:14px;margin:0 0 18px}.countdown{display:flex;gap:9px;margin:15px 0 20px}.time-box{background:var(--soft);border-radius:12px;padding:8px 12px;text-align:center;min-width:62px}.time-box strong{display:block;font-size:22px;color:var(--navy);line-height:1.2}.time-box span{font-size:11px;color:var(--muted)}
    section{padding:94px 0}.section-head{max-width:720px;margin-bottom:43px}.section-head h2{font-size:clamp(30px,4vw,48px);line-height:1.25;letter-spacing:-.03em;margin:12px 0 16px}.section-head p{color:var(--muted);font-size:16px;margin:0}.light-section{background:#fff}.soft-section{background:#eef5f4}.dark-section{background:var(--navy);color:#fff}.dark-section .section-head p{color:#b8c7d5}
    .intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}.intro-copy{font-size:17px;color:#4e6072}.intro-copy p{margin:0 0 18px}.quote-box{border-left:4px solid var(--gold);padding:22px 26px;background:#fdf8ec;color:var(--navy);font-size:22px;line-height:1.65;border-radius:0 18px 18px 0}.image-frame{border-radius:28px;overflow:hidden;box-shadow:var(--shadow)}.image-frame img{height:410px;width:100%;object-fit:cover}
    .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.service-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:29px;min-height:245px;box-shadow:var(--shadow-sm);transition:.3s}.service-card:hover{transform:translateY(-7px);box-shadow:var(--shadow);border-color:var(--teal)}.service-no{color:var(--teal);font-weight:900;font-size:13px}.service-card h3{font-size:22px;margin:15px 0 8px}.service-card p{color:var(--muted);margin:0;font-size:14px}
    .data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.16);border-radius:20px;overflow:hidden}.data-item{padding:29px 24px;background:rgba(255,255,255,.05)}.data-item strong{font-size:37px;line-height:1;color:var(--gold);display:block}.data-item span{display:block;color:#c5d3df;margin-top:10px;font-size:14px}
    .process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.process-card{position:relative;padding:26px;background:#fff;border:1px solid var(--line);border-radius:18px}.process-card b{width:36px;height:36px;display:grid;place-items:center;border-radius:50%;background:var(--teal);color:#fff}.process-card h3{font-size:19px;margin:18px 0 7px}.process-card p{color:var(--muted);font-size:14px;margin:0}
    .case-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:35px}.case-feature{border-radius:24px;overflow:hidden;position:relative;min-height:420px;background:#20364b}.case-feature img{width:100%;height:100%;object-fit:cover;opacity:.82}.case-caption{position:absolute;left:28px;right:28px;bottom:25px;color:#fff}.case-caption h3{font-size:28px;margin:8px 0}.case-caption p{margin:0;color:#e1edf2}.case-list{display:grid;gap:14px}.case-item{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px 25px}.case-item h3{font-size:19px;margin:0 0 6px}.case-item p{color:var(--muted);font-size:14px;margin:0}
    .audience-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.audience-item{padding:25px;background:#fff;border-radius:18px;border:1px solid var(--line)}.audience-item h3{font-size:20px;margin:0 0 8px}.audience-item p{margin:0;color:var(--muted);font-size:14px}
    .faq-list{max-width:900px}.accordion-item{background:#fff;border:1px solid var(--line)!important;border-radius:15px!important;margin-bottom:12px;overflow:hidden}.accordion-button{font-weight:800;color:var(--navy);padding:20px 23px;background:#fff!important;box-shadow:none!important}.accordion-button:not(.collapsed){color:var(--teal)}.accordion-body{color:var(--muted);padding:0 23px 22px}
    .cta{background:var(--teal);color:#fff;border-radius:28px;padding:52px 58px;display:flex;align-items:center;justify-content:space-between;gap:28px}.cta h2{font-size:36px;margin:0 0 10px}.cta p{margin:0;color:#d9fffa;max-width:650px}.support-form{background:#fff;border-radius:24px;padding:30px;box-shadow:var(--shadow)}.form-control{border:1px solid var(--line);border-radius:12px;padding:12px 15px}.form-control:focus{border-color:var(--teal);box-shadow:0 0 0 4px rgba(24,169,153,.13)}.form-note{font-size:12px;color:var(--muted);margin-top:12px}
    footer{background:#0e1d2d;color:#b9c8d5;padding:65px 0 22px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:35px}.footer-brand{color:#fff;font-weight:800;font-size:21px;display:flex;align-items:center;gap:10px}.footer-grid p{font-size:14px;max-width:270px;margin-top:18px}.footer-title{color:#fff;font-weight:800;margin-bottom:15px}.footer-links{display:grid;gap:9px;font-size:13px}.footer-links a:hover{color:var(--gold)}.footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:45px;padding-top:20px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12px}.footer-bottom a:hover{color:#fff}
    :focus-visible{outline:3px solid rgba(241,184,75,.8);outline-offset:3px}
    @media(max-width:992px){.nav-link{padding:9px 8px!important;font-size:13px}.hero{min-height:auto}.launch-panel{margin:30px 0 0}.intro-grid,.case-layout{grid-template-columns:1fr;gap:35px}.service-grid{grid-template-columns:repeat(2,1fr)}.process-grid{grid-template-columns:repeat(2,1fr)}.data-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){section{padding:68px 0}.hero-content{padding:68px 0}.hero h1{font-size:43px}.hero-copy{font-size:16px}.launch-panel{max-width:none}.service-grid,.audience-grid{grid-template-columns:1fr}.cta{display:block;padding:35px 27px}.cta h2{font-size:29px;margin-bottom:15px}.cta .btn-light{margin-top:24px}.footer-bottom{display:grid}.navbar{min-height:68px}}
    @media(max-width:520px){.brand{font-size:19px}.brand-mark{width:30px;height:30px}.hero h1{font-size:36px}.hero-actions .btn-main,.hero-actions .btn-ghost{width:100%}.process-grid,.data-grid{grid-template-columns:1fr}.image-frame img{height:300px}.footer-grid{grid-template-columns:1fr}.countdown{gap:5px}.time-box{min-width:55px;padding:7px 8px}}

/* roulang page: category6 */
:root{
      --ink:#172333;--muted:#687789;--paper:#f6f8fb;--white:#fff;
      --navy:#12263d;--teal:#18a999;--gold:#f1b84b;--coral:#f17463;
      --line:#dce5ed;--soft:#eaf3f2;--radius:22px;
      --shadow:0 18px 50px rgba(23,35,51,.10);
      --shadow-sm:0 8px 24px rgba(23,35,51,.08)
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.85;font-size:15px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    .container{max-width:1180px}
    .site-header{background:rgba(255,255,255,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(220,229,237,.9);position:sticky;top:0;z-index:50}
    .navbar{min-height:76px}
    .brand{font-weight:800;font-size:23px;letter-spacing:.04em;color:var(--navy);display:flex;align-items:center;gap:10px}
    .brand-mark{width:34px;height:34px;border-radius:12px 12px 12px 4px;background:var(--teal);display:inline-grid;place-items:center;color:#fff;font-size:16px;box-shadow:5px 5px 0 var(--gold)}
    .nav-link{color:#536376!important;font-weight:600;padding:10px 12px!important;border-radius:10px}
    .nav-link:hover,.nav-link.active{color:var(--navy)!important;background:#edf5f4}
    .nav-cta{background:var(--navy);color:#fff;border-radius:999px;padding:11px 19px;font-weight:700}
    .nav-cta:hover{background:var(--teal);color:#fff;transform:translateY(-2px)}
    .navbar-toggler{padding:8px}
    .navbar-toggler-icon{filter:brightness(.25)}
    .hero{position:relative;min-height:590px;display:flex;align-items:center;overflow:hidden;background:var(--navy)}
    .hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(13,31,49,.94),rgba(13,31,49,.73) 48%,rgba(13,31,49,.28)),url("/assets/images/backpic/back-2.jpg") center/cover}
    .hero:after{content:"";position:absolute;width:470px;height:470px;border:1px solid rgba(255,255,255,.16);border-radius:50%;right:-130px;top:75px;box-shadow:0 0 0 45px rgba(255,255,255,.03),0 0 0 90px rgba(255,255,255,.025)}
    .hero-content{position:relative;z-index:2;color:#fff;padding:78px 0}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--gold);font-weight:800;letter-spacing:.12em;font-size:12px}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:currentColor}
    h1{font-size:clamp(38px,5.4vw,68px);line-height:1.18;letter-spacing:-.05em;margin:17px 0 18px;max-width:680px}
    .hero-copy{max-width:620px;color:#d8e4ed;font-size:18px;line-height:1.9}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:30px}
    .btn-main,.btn-ghost,.btn-light{border:0;border-radius:999px;padding:13px 23px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px}
    .btn-main{background:var(--teal);color:#fff;box-shadow:0 10px 24px rgba(24,169,153,.28)}
    .btn-main:hover{background:#25c0ad;color:#fff;transform:translateY(-2px)}
    .btn-ghost{border:1px solid rgba(255,255,255,.4);color:#fff;background:rgba(255,255,255,.08)}
    .btn-ghost:hover{background:#fff;color:var(--navy)}
    .btn-light{background:#fff;color:var(--navy)}
    .btn-light:hover{background:var(--gold);color:var(--navy)}
    .hero-points{display:flex;gap:32px;flex-wrap:wrap;margin-top:40px}
    .hero-point strong{display:block;font-size:27px;color:#fff;line-height:1.2}
    .hero-point span{color:#b9c9d7;font-size:13px}
    section{padding:92px 0}
    .section-head{max-width:720px;margin-bottom:43px}
    .section-head h2{font-size:clamp(30px,4vw,47px);line-height:1.25;letter-spacing:-.03em;margin:12px 0 16px}
    .section-head p{color:var(--muted);font-size:16px;margin:0}
    .light-section{background:#fff}
    .subscription-panel{background:#fff;border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);overflow:hidden}
    .subscription-panel img{width:100%;height:100%;min-height:360px;object-fit:cover}
    .subscription-copy{padding:42px}
    .subscription-copy h2{font-size:34px;line-height:1.3;margin:13px 0}
    .tag{display:inline-flex;background:var(--soft);color:#138679;border-radius:999px;padding:6px 12px;font-weight:800;font-size:12px}
    .price{font-size:42px;font-weight:900;color:var(--navy);line-height:1;margin:25px 0 5px}
    .price small{font-size:14px;color:var(--muted);font-weight:500}
    .check-list{padding:0;margin:23px 0;list-style:none}
    .check-list li{padding:8px 0 8px 27px;position:relative;color:#506174}
    .check-list li:before{content:"✓";position:absolute;left:0;color:var(--teal);font-weight:900}
    .feature-layout{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
    .feature-image{border-radius:28px;overflow:hidden;box-shadow:var(--shadow);position:relative}
    .feature-image img{width:100%;height:430px;object-fit:cover}
    .image-tag{position:absolute;left:22px;bottom:22px;background:rgba(18,38,61,.88);color:#fff;border-radius:14px;padding:13px 16px;font-size:13px}
    .feature-list{display:grid;gap:17px;margin-top:25px}
    .feature-item{display:flex;gap:15px;align-items:flex-start}
    .feature-icon{flex:0 0 38px;height:38px;border-radius:12px;background:var(--soft);color:var(--teal);display:grid;place-items:center;font-weight:900}
    .feature-item h4{font-size:17px;margin:0 0 3px}
    .feature-item p{margin:0;color:var(--muted);font-size:14px}
    .topic-section{background:#eef5f4}
    .topic-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:22px}
    .topic-card{background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden;box-shadow:var(--shadow-sm);transition:.3s}
    .topic-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
    .topic-card img{height:218px;width:100%;object-fit:cover}
    .topic-card-body{padding:25px}
    .topic-card h3{font-size:23px;line-height:1.35;margin:10px 0}
    .topic-card p{color:var(--muted);margin:0}
    .mini-topic{display:flex;gap:18px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;margin-bottom:16px;transition:.25s}
    .mini-topic:hover{border-color:var(--teal);transform:translateX(4px)}
    .mini-topic img{width:112px;height:92px;object-fit:cover;border-radius:13px;flex:0 0 auto}
    .mini-topic h4{font-size:17px;line-height:1.45;margin:4px 0}
    .mini-topic p{font-size:13px;color:var(--muted);margin:0}
    .dark-section{background:var(--navy);color:#fff}
    .dark-section .section-head p{color:#b8c7d5}
    .editorial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .editorial-card{border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);border-radius:20px;padding:25px;min-height:210px}
    .editorial-card span{color:var(--gold);font-weight:800;font-size:13px}
    .editorial-card h3{font-size:21px;line-height:1.4;margin:16px 0 9px}
    .editorial-card p{color:#b8c7d5;font-size:14px;margin:0}
    .number-section{background:#fff}
    .number-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .number-item{padding:30px 22px;border-right:1px solid var(--line)}
    .number-item:last-child{border-right:0}
    .number-item strong{font-size:38px;color:var(--teal);display:block;line-height:1.15}
    .number-item b{display:block;font-size:16px;margin:10px 0 5px}
    .number-item span{font-size:13px;color:var(--muted)}
    .story-section{background:#f4f7f8}
    .story-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:start}
    .story-box{background:#fff;border-radius:22px;padding:30px;border:1px solid var(--line)}
    .story-box h3{font-size:25px;margin:0 0 14px}
    .story-box p{color:var(--muted);margin:0 0 15px}
    .quote{font-size:25px;line-height:1.6;color:var(--navy);font-weight:700;border-left:4px solid var(--gold);padding-left:20px}
    .process-section{background:#fff}
    .process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .process-item{position:relative;padding:26px 22px;border:1px solid var(--line);border-radius:18px;background:#fff}
    .process-no{width:38px;height:38px;border-radius:12px;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:900}
    .process-item h3{font-size:18px;margin:18px 0 7px}
    .process-item p{font-size:13px;color:var(--muted);margin:0}
    .faq-section{background:#eef5f4}
    .accordion-item{border:1px solid var(--line)!important;border-radius:14px!important;margin-bottom:12px;overflow:hidden;background:#fff}
    .accordion-button{font-weight:800;color:var(--navy);background:#fff;padding:20px 22px;box-shadow:none!important}
    .accordion-button:not(.collapsed){color:var(--teal);background:#f7fbfa}
    .accordion-body{color:var(--muted);padding:0 22px 21px}
    .cta-section{padding:78px 0;background:var(--coral);color:#fff}
    .cta-wrap{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta-wrap h2{font-size:clamp(30px,4vw,45px);margin:0 0 12px;line-height:1.25}
    .cta-wrap p{margin:0;color:#ffe9e5;max-width:650px}
    footer{background:#0d1e30;color:#c2ced8;padding:63px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.2fr;gap:32px}
    .footer-brand{font-size:22px;font-weight:800;color:#fff;display:flex;align-items:center;gap:10px}
    footer p{font-size:14px;line-height:1.8;margin:20px 0 0;color:#aebdca}
    .footer-title{color:#fff;font-weight:800;margin-bottom:15px}
    .footer-links{display:grid;gap:8px;font-size:13px}
    .footer-links a:hover{color:var(--gold)}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:42px;padding-top:20px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;font-size:12px;color:#92a5b5}
    .footer-bottom a:hover{color:#fff}
    :focus-visible{outline:3px solid rgba(24,169,153,.45);outline-offset:3px}
    @media(max-width:1024px){
      .nav-link{padding:9px 8px!important;font-size:13px}
      .feature-layout,.story-grid{gap:35px}
      .number-grid{grid-template-columns:repeat(2,1fr)}
      .number-item:nth-child(2){border-right:0}
      .number-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
    }
    @media(max-width:768px){
      .hero{min-height:650px}
      section{padding:70px 0}
      .hero-content{padding:62px 0}
      .hero-copy{font-size:16px}
      .feature-layout,.story-grid,.topic-grid{grid-template-columns:1fr}
      .feature-image img{height:330px}
      .editorial-grid,.process-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
      .cta-wrap{display:block}
      .cta-wrap .btn-light{margin-top:24px}
    }
    @media(max-width:520px){
      .brand{font-size:20px}
      h1{font-size:39px}
      .hero-points{gap:20px}
      .hero-point strong{font-size:24px}
      .subscription-copy{padding:28px 22px}
      .subscription-copy h2{font-size:28px}
      .editorial-grid,.process-grid,.number-grid{grid-template-columns:1fr}
      .number-item{border-right:0!important;border-bottom:1px solid var(--line)}
      .number-item:last-child{border-bottom:0}
      .mini-topic{align-items:flex-start}
      .mini-topic img{width:90px;height:78px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:grid}
    }

/* roulang page: category7 */
:root{
      --ink:#172333;--muted:#687789;--paper:#f6f8fb;--white:#fff;
      --navy:#12263d;--teal:#18a999;--gold:#f1b84b;--coral:#f17463;
      --line:#dce5ed;--soft:#eaf3f2;--radius:22px;
      --shadow:0 18px 50px rgba(23,35,51,.10);
      --shadow-sm:0 8px 24px rgba(23,35,51,.08)
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.85}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{display:block;max-width:100%}
    button,input,textarea{font:inherit}
    .container{max-width:1180px}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(16px);border-bottom:1px solid rgba(220,229,237,.9)}
    .navbar{min-height:76px}
    .brand{display:flex;align-items:center;gap:10px;color:var(--navy);font-weight:800;font-size:23px;letter-spacing:.04em}
    .brand-mark{width:34px;height:34px;border-radius:12px 12px 12px 4px;background:var(--teal);display:inline-grid;place-items:center;color:#fff;font-size:16px;box-shadow:5px 5px 0 var(--gold)}
    .nav-link{color:#536376!important;font-weight:600;padding:10px 12px!important;border-radius:10px}
    .nav-link:hover,.nav-link.active{color:var(--navy)!important;background:#edf5f4}
    .nav-cta{background:var(--navy);color:#fff;border-radius:999px;padding:11px 19px;font-weight:700}
    .nav-cta:hover{background:var(--teal);color:#fff;transform:translateY(-2px)}
    .navbar-toggler{padding:8px}
    .hero-inner{position:relative;z-index:2;padding:96px 0 110px}
    .page-hero{position:relative;overflow:hidden;background:var(--navy);color:#fff}
    .page-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(13,31,49,.94),rgba(13,31,49,.68)),url("/assets/images/backpic/back-2.jpg") center/cover}
    .page-hero:after{content:"";position:absolute;width:440px;height:440px;border:1px solid rgba(255,255,255,.16);border-radius:50%;right:-110px;top:70px;box-shadow:0 0 0 42px rgba(255,255,255,.03),0 0 0 86px rgba(255,255,255,.025)}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--gold);font-size:12px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:currentColor}
    h1{font-size:clamp(38px,6vw,72px);line-height:1.16;letter-spacing:-.045em;margin:18px 0 20px;font-weight:800}
    .hero-copy{max-width:650px;color:#d9e5ed;font-size:18px;line-height:1.9}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:32px}
    .btn-main,.btn-ghost,.btn-light{border:0;border-radius:999px;padding:13px 23px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px}
    .btn-main{background:var(--teal);color:#fff;box-shadow:0 10px 24px rgba(24,169,153,.28)}
    .btn-main:hover{background:#25c0ad;color:#fff;transform:translateY(-2px)}
    .btn-ghost{border:1px solid rgba(255,255,255,.4);color:#fff;background:rgba(255,255,255,.08)}
    .btn-ghost:hover{background:#fff;color:var(--navy)}
    .hero-stats{display:flex;gap:30px;flex-wrap:wrap;margin-top:48px}
    .hero-stats strong{display:block;font-size:28px;line-height:1.2}
    .hero-stats span{font-size:13px;color:#b9c9d7}
    section{padding:96px 0}
    .section-head{max-width:720px;margin-bottom:44px}
    .section-head h2{font-size:clamp(29px,4vw,47px);line-height:1.25;letter-spacing:-.035em;margin:12px 0 15px}
    .section-head p{color:var(--muted);font-size:16px;margin:0}
    .intro-section{background:#fff}
    .intro-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
    .intro-layout h2{font-size:clamp(30px,4vw,48px);line-height:1.3;margin:12px 0 18px}
    .intro-layout p{color:var(--muted);font-size:16px}
    .signal-box{background:var(--navy);color:#fff;border-radius:28px;padding:34px;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .signal-box:after{content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(255,255,255,.16);border-radius:50%;right:-45px;bottom:-55px}
    .signal-box h3{font-size:24px;margin:0 0 25px}
    .signal-item{display:flex;gap:14px;padding:18px 0;border-top:1px solid rgba(255,255,255,.14)}
    .signal-item b{color:var(--gold);font-size:22px;min-width:32px}
    .signal-item p{margin:0;color:#c2d1dc}
    .feature-section{background:#eef5f4}
    .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:29px;min-height:235px;transition:.3s}
    .feature-card:hover{transform:translateY(-7px);box-shadow:var(--shadow)}
    .feature-no{color:var(--teal);font-weight:800;font-size:13px;letter-spacing:.12em}
    .feature-card h3{font-size:21px;margin:18px 0 9px}
    .feature-card p{color:var(--muted);margin:0}
    .image-section{background:#fff}
    .image-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:center}
    .image-frame{border-radius:28px;overflow:hidden;box-shadow:var(--shadow);position:relative}
    .image-frame img{width:100%;height:470px;object-fit:cover}
    .image-tag{position:absolute;left:22px;bottom:22px;background:rgba(18,38,61,.88);color:#fff;border-radius:14px;padding:12px 16px;font-size:13px}
    .image-layout h2{font-size:clamp(29px,4vw,44px);line-height:1.3;margin:12px 0 16px}
    .check-list{list-style:none;padding:0;margin:24px 0}
    .check-list li{position:relative;padding:9px 0 9px 29px;color:#506174}
    .check-list li:before{content:"✓";position:absolute;left:0;color:var(--teal);font-weight:900}
    .dark-section{background:var(--navy);color:#fff}
    .dark-section .section-head p{color:#b8c7d5}
    .journey-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
    .journey-card{border:1px solid rgba(255,255,255,.15);border-radius:18px;padding:25px;background:rgba(255,255,255,.06)}
    .journey-card span{color:var(--gold);font-weight:800;font-size:13px}
    .journey-card h3{font-size:19px;margin:15px 0 8px}
    .journey-card p{color:#b8c7d5;font-size:14px;margin:0}
    .case-section{background:#f4f7f8}
    .case-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
    .case-main,.case-side{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
    .case-main img{width:100%;height:285px;object-fit:cover}
    .case-content{padding:28px}
    .case-content h3{font-size:25px;margin:0 0 10px}
    .case-content p,.case-side p{color:var(--muted)}
    .case-side{padding:28px}
    .case-side h3{font-size:21px;margin:0 0 18px}
    .quote{font-size:20px;line-height:1.7;color:var(--navy);font-weight:700;border-left:3px solid var(--gold);padding-left:18px}
    .scope-section{background:#eef5f4}
    .scope-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .scope-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;min-height:180px;transition:.25s}
    .scope-card:hover{border-color:var(--teal);box-shadow:var(--shadow-sm)}
    .scope-card b{color:var(--teal);font-size:13px}
    .scope-card h3{font-size:19px;margin:12px 0 7px}
    .scope-card p{color:var(--muted);font-size:13px;margin:0}
    .values-section{background:#fff}
    .values-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:65px}
    .values-layout h2{font-size:clamp(30px,4vw,44px);line-height:1.3;margin:12px 0}
    .values-layout p{color:var(--muted);font-size:16px}
    .value-list{display:grid;gap:14px}
    .value-row{display:flex;gap:20px;align-items:flex-start;padding:20px;border-bottom:1px solid var(--line)}
    .value-row strong{display:block;font-size:18px;margin-bottom:4px}
    .value-row span{color:var(--muted)}
    .value-icon{width:38px;height:38px;flex:0 0 38px;border-radius:12px;background:var(--soft);color:var(--teal);display:grid;place-items:center;font-weight:900}
    .faq-section{background:#f4f7f8}
    .faq-wrap{max-width:860px}
    .accordion-item{border:1px solid var(--{width:38px;height:38px;flex:0 0 38px;border-radius:12px;background:var(--soft);color:var(--teal);display:grid;place-items:center;font-weight:900}
    .faq-section{background:#f4f7f8}
    .faq-wrap{max-width:860px}
    .accordion-item{border:1px solid var(--line)!important;border-radius:16px!important;overflow:hidden;margin-bottom:12px;background:#fff}
    .accordion-button{font-weight:700;color:var(--navy);padding:20px 22px;background:#fff;box-shadow:none!important}
    .accordion-button:not(.collapsed){color:var(--teal);background:#fff}
    .accordion-button:after{background-size:14px}
    .accordion-body{padding:0 22px 22px;color:var(--muted);line-height:1.85}
    .cta-section{padding:78px 0;background:var(--teal);color:#fff}
    .cta-box{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta-box h2{font-size:clamp(28px,4vw,43px);line-height:1.3;margin:0 0 10px}
    .cta-box p{color:#dcfffa;margin:0;max-width:650px}
    footer{background:var(--navy);color:#fff;padding:70px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.1fr;gap:35px}
    .footer-brand{font-size:21px;font-weight:800;display:flex;align-items:center;gap:10px;margin-bottom:18px}
    footer p{color:#b8c7d5;max-width:270px}
    .footer-title{font-weight:800;color:var(--gold);margin-bottom:16px}
    .footer-links{display:grid;gap:9px;color:#b8c7d5;font-size:14px}
    .footer-links a:hover{color:#fff;transform:translateX(3px)}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:48px;padding-top:20px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#91a4b5;font-size:12px}
    .footer-bottom a:hover{color:#fff}
    :focus-visible{outline:3px solid rgba(241,184,75,.75);outline-offset:3px}
    @media(max-width:992px){
      .navbar-nav{padding:15px 0}
      .nav-link{padding:9px 4px!important}
      .intro-layout,.image-layout,.values-layout,.case-layout{grid-template-columns:1fr;gap:38px}
      .feature-grid{grid-template-columns:repeat(2,1fr)}
      .journey-grid{grid-template-columns:repeat(2,1fr)}
      .scope-grid{grid-template-columns:repeat(2,1fr)}
      .image-frame{max-width:650px}
      .cta-box{align-items:flex-start;flex-direction:column}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      section{padding:72px 0}
      .hero-inner{padding:76px 0 82px}
      .hero-copy{font-size:16px}
      .hero-stats{gap:20px;margin-top:35px}
      .feature-grid,.journey-grid,.scope-grid{grid-template-columns:1fr}
      .feature-card{min-height:auto}
      .image-frame img{height:360px}
      .case-main img{height:230px}
    }
    @media(max-width:520px){
      body{font-size:14px}
      h1{font-size:40px}
      .hero-actions a{width:100%}
      .btn-main,.btn-ghost,.btn-light{padding:12px 18px}
      .signal-box,.case-side,.case-content{padding:24px}
      .footer-grid{grid-template-columns:1fr;gap:26px}
      .footer-bottom{display:grid;gap:8px;margin-top:35px}
    }

/* roulang page: category4 */
:root{
      --ink:#172333;--muted:#687789;--paper:#f6f8fb;--white:#fff;
      --navy:#12263d;--teal:#18a999;--gold:#f1b84b;--coral:#f17463;
      --line:#dce5ed;--soft:#eaf3f2;--radius:22px;
      --shadow:0 18px 50px rgba(23,35,51,.10);--shadow-sm:0 8px 24px rgba(23,35,51,.08)
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.85;font-size:15px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    .container{max-width:1180px}
    .site-header{background:rgba(255,255,255,.95);backdrop-filter:blur(16px);border-bottom:1px solid rgba(220,229,237,.9);position:sticky;top:0;z-index:50}
    .navbar{min-height:76px}
    .brand{font-weight:800;font-size:23px;letter-spacing:.04em;color:var(--navy);display:flex;align-items:center;gap:10px}
    .brand-mark{width:34px;height:34px;border-radius:12px 12px 12px 4px;background:var(--teal);display:inline-grid;place-items:center;color:#fff;font-size:16px;box-shadow:5px 5px 0 var(--gold)}
    .nav-link{color:#536376!important;font-weight:600;padding:10px 12px!important;border-radius:10px}
    .nav-link:hover,.nav-link.active{color:var(--navy)!important;background:#edf5f4}
    .nav-cta{background:var(--navy);color:#fff;border-radius:999px;padding:11px 19px;font-weight:700}
    .nav-cta:hover{background:var(--teal);color:#fff;transform:translateY(-2px)}
    .hero{position:relative;overflow:hidden;background:var(--navy);color:#fff;padding:100px 0 90px}
    .hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(13,31,49,.94),rgba(13,31,49,.70),rgba(13,31,49,.36)),url("/assets/images/backpic/back-2.jpg") center/cover}
    .hero:after{content:"";position:absolute;width:500px;height:500px;border:1px solid rgba(255,255,255,.15);border-radius:50%;right:-150px;top:50px;box-shadow:0 0 0 45px rgba(255,255,255,.03),0 0 0 90px rgba(255,255,255,.025)}
    .hero-content{position:relative;z-index:2}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--gold);font-weight:800;letter-spacing:.12em;font-size:12px}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:currentColor}
    h1{font-size:clamp(38px,5.5vw,68px);line-height:1.18;letter-spacing:-.04em;margin:18px 0}
    .hero-copy{max-width:610px;color:#d8e4ed;font-size:18px}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:30px}
    .btn-main,.btn-ghost,.btn-light{border:0;border-radius:999px;padding:13px 23px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px}
    .btn-main{background:var(--teal);color:#fff;box-shadow:0 10px 24px rgba(24,169,153,.28)}
    .btn-main:hover{background:#25c0ad;color:#fff;transform:translateY(-2px)}
    .btn-ghost{border:1px solid rgba(255,255,255,.4);color:#fff;background:rgba(255,255,255,.08)}
    .btn-ghost:hover{background:#fff;color:var(--navy)}
    .btn-light{background:#fff;color:var(--navy)}
    .btn-light:hover{background:var(--gold);color:var(--navy)}
    .whitepaper{background:#fff;color:var(--ink);border-radius:24px;padding:25px;box-shadow:var(--shadow);transform:rotate(1deg);max-width:380px;margin-left:auto}
    .paper-cover{height:230px;border-radius:16px;padding:25px;background:linear-gradient(145deg,rgba(18,38,61,.35),rgba(18,38,61,.82)),url("/assets/images/coverpic/cover-7.webp") center/cover;color:#fff;display:flex;flex-direction:column;justify-content:space-between}
    .paper-cover strong{font-size:25px;line-height:1.35}
    .paper-index{padding-top:18px;font-size:13px;color:var(--muted)}
    .paper-index span{display:block;padding:5px 0;border-bottom:1px solid #edf1f3}
    .lead-form{display:flex;gap:8px;margin-top:18px}
    .lead-form input{min-width:0;flex:1;border:1px solid var(--line);border-radius:999px;padding:10px 14px;outline:none}
    .lead-form input:focus{border-color:var(--teal);box-shadow:0 0 0 4px rgba(24,169,153,.12)}
    .lead-form button{border:0;border-radius:999px;background:var(--teal);color:#fff;padding:10px 16px;font-weight:700}
    section{padding:92px 0}
    .section-head{max-width:720px;margin-bottom:42px}
    .section-head h2{font-size:clamp(30px,4vw,47px);line-height:1.25;letter-spacing:-.03em;margin:12px 0 15px}
    .section-head p{color:var(--muted);font-size:16px;margin:0}
    .trust{background:#fff;border-bottom:1px solid var(--line);padding:25px 0}
    .trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
    .trust-item{border-left:3px solid var(--teal);padding-left:17px}
    .trust-item strong{font-size:27px;color:var(--navy);display:block;line-height:1.25}
    .trust-item span{font-size:13px;color:var(--muted)}
    .light-section{background:#fff}
    .value-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}
    .feature-image{border-radius:28px;overflow:hidden;box-shadow:var(--shadow);position:relative}
    .feature-image img{width:100%;height:450px;object-fit:cover}
    .image-tag{position:absolute;left:22px;bottom:22px;background:rgba(18,38,61,.88);color:#fff;border-radius:14px;padding:13px 16px;font-size:13px}
    .feature-list{display:grid;gap:18px;margin-top:25px}
    .feature-item{display:flex;gap:15px;align-items:flex-start}
    .feature-icon{flex:0 0 38px;height:38px;border-radius:12px;background:var(--soft);color:var(--teal);display:grid;place-items:center;font-weight:900}
    .feature-item h4{font-size:18px;margin:0 0 4px}
    .feature-item p{margin:0;color:var(--muted);font-size:14px}
    .scope-section{background:#eef5f4}
    .scope-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .scope-card{padding:25px;background:#fff;border-radius:18px;border:1px solid var(--line);min-height:190px;transition:.25s}
    .scope-card:hover{border-color:var(--teal);box-shadow:var(--shadow-sm);transform:translateY(-5px)}
    .scope-card b{color:var(--teal);font-size:13px}
    .scope-card h3{font-size:19px;margin:13px 0 7px}
    .scope-card p{margin:0;color:var(--muted);font-size:13px}
    .dark-section{background:var(--navy);color:#fff}
    .dark-section .section-head p{color:#b8c7d5}
    .process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
    .process-card{border-top:2px solid var(--teal);padding:24px 20px;background:rgba(255,255,255,.06);border-radius:0 0 16px 16px}
    .process-card .num{color:var(--gold);font-size:13px;font-weight:800}
    .process-card h3{font-size:19px;margin:14px 0 7px}
    .process-card p{color:#b8c7d5;font-size:13px;margin:0}
    .case-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:55px;align-items:center}
    .case-image{border-radius:25px;overflow:hidden;box-shadow:var(--shadow)}
    .case-image img{height:400px;width:100%;object-fit:cover}
    .case-copy h3{font-size:31px;line-height:1.35}
    .case-copy p{color:var(--muted)}
    .result-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:24px 0}
    .result-list div{background:var(--soft);border-radius:14px;padding:16px}
    .result-list strong{display:block;font-size:25px;color:var(--teal)}
    .result-list span{font-size:13px;color:var(--muted)}
    .deliver-section{background:#f4f7f8}
    .deliver-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .deliver-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:25px;display:flex;gap:17px;transition:.25s}
    .deliver-card:hover{box-shadow:var(--shadow-sm);transform:translateY(-4px)}
    .deliver-card h3{font-size:18px;margin:0 0 7px}
    .deliver-card p{margin:0;color:var(--muted);font-size:14px}
    .faq-section{background:#fff}
    .accordion-item{border:1px solid var(--line)!important;border-radius:14px!important;margin-bottom:12px;overflow:hidden}
    .accordion-button{font-weight:700;color:var(--navy);background:#fff;box-shadow:none!important;padding:20px}
    .accordion-button:not(.collapsed){color:var(--teal);background:#f5fbfa}
    .accordion-body{color:var(--muted);padding:0 20px 20px}
    .cta{background:var(--teal);color:#fff;border-radius:28px;padding:52px 58px;position:relative;overflow:hidden}
    .cta:after{content:"";position:absolute;width:270px;height:270px;border:1px solid rgba(255,255,255,.25);border-radius:50%;right:-65px;top:-90px}
    .cta h2{font-size:clamp(28px,4vw,43px);line-height:1.3;margin:0 0 13px}
    .cta p{color:#d9fffa;max-width:680px}
    footer{background:#0d1d2d;color:#b8c7d5;padding:65px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.2fr;gap:35px}
    .footer-brand{color:#fff;font-size:21px;font-weight:800;display:flex;align-items:center;gap:10px}
    footer p{font-size:14px;margin-top:18px}
    .footer-title{color:#fff;font-weight:700;margin-bottom:14px}
    .footer-links{display:grid;gap:8px;font-size:13px}
    .footer-links a:hover{color:var(--gold)}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:45px;padding-top:20px;display:flex;gap:18px;justify-content:space-between;flex-wrap:wrap;font-size:12px}
    footer a{color:#b8c7d5}
    :focus-visible{outline:3px solid rgba(241,184,75,.7);outline-offset:3px}
    @media(max-width:1024px){.nav-link{padding-left:8px!important;padding-right:8px!important}.scope-grid{grid-template-columns:repeat(2,1fr)}.value-layout,.case-layout{gap:35px}.footer-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.hero{padding:75px 0}.whitepaper{margin:45px auto 0;transform:none}.trust-grid{grid-template-columns:repeat(2,1fr)}.value-layout,.case-layout,.deliver-grid{grid-template-columns:1fr}.feature-image img,.case-image img{height:330px}section{padding:70px 0}.process-grid{grid-template-columns:repeat(2,1fr)}.cta{padding:38px 28px}}
    @media(max-width:520px){.navbar{min-height:68px}.brand{font-size:20px}.hero-copy{font-size:16px}.trust-grid,.scope-grid,.process-grid,.result-list{grid-template-columns:1fr}.lead-form{display:block}.lead-form input,.lead-form button{width:100%;margin-bottom:8px}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}.section-head{margin-bottom:30px}}