/* roulang page: index */
:root{
      --blue:#1f5f96;--blue-deep:#164a77;--blue-pale:#eaf3fa;--ink:#162536;
      --muted:#657486;--subtle:#8895a5;--line:#e2eaf1;--paper:#fff;
      --ground:#f7f9fc;--aqua:#2d8b82;--danger:#a64b4b;--radius:16px;
      --shadow:0 10px 28px rgba(28,61,92,.08);--shadow-hover:0 18px 36px rgba(28,61,92,.14);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--ground);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none} img{max-width:100%;display:block} button,input,select,textarea{font:inherit}
    .site-container{max-width:1200px;margin:auto;padding:0 24px}
    .utility-bar{height:36px;background:var(--blue-deep);color:#dcecf8;font-size:13px}
    .utility-bar .site-container{height:100%;display:flex;align-items:center;justify-content:space-between}
    .utility-link{color:#fff;display:inline-flex;align-items:center;gap:6px;font-weight:600}.utility-link:hover{color:#bfe3f5}
    .main-nav{min-height:78px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 10px rgba(22,37,54,.025)}
    .navbar{min-height:78px;padding:0}
    .brand{font-weight:800;letter-spacing:-.5px;color:var(--ink);font-size:20px;display:flex;align-items:center;gap:10px;white-space:nowrap}
    .brand-mark{width:30px;height:30px;border-radius:9px;background:var(--blue);display:grid;place-items:center;position:relative}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;height:3px;background:#fff;border-radius:5px;left:8px}
    .brand-mark:before{width:14px;top:10px}.brand-mark:after{width:9px;top:17px}
    .navbar-nav{gap:8px}.nav-link{height:48px;display:flex;align-items:center;padding:0 14px!important;color:var(--muted)!important;font-size:15px;font-weight:600;position:relative}
    .nav-link:hover,.nav-link.active{color:var(--blue)!important}.nav-link.active:after{content:"";position:absolute;height:2px;left:14px;right:14px;bottom:3px;background:var(--blue)}
    .navbar-toggler{border:1px solid var(--line);padding:8px;border-radius:10px}.navbar-toggler:focus{box-shadow:0 0 0 4px rgba(31,95,150,.12)}
    .btn{min-height:46px;border-radius:10px;padding:10px 19px;font-weight:700;font-size:15px;transition:.22s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px}
    .btn-primary{background:var(--blue);border-color:var(--blue)}.btn-primary:hover,.btn-primary:focus{background:var(--blue-deep);border-color:var(--blue-deep);transform:translateY(-1px)}
    .btn-outline-primary{color:var(--blue);border-color:#b9d0e2;background:#fff}.btn-outline-primary:hover,.btn-outline-primary:focus{color:var(--blue);background:var(--blue-pale);border-color:var(--blue)}
    .btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(31,95,150,.22);outline-offset:3px;box-shadow:none}
    .hero{position:relative;overflow:hidden;padding:78px 0 56px;background:linear-gradient(135deg,#f8fbfe 0%,#edf5fa 100%);border-bottom:1px solid var(--line)}
    .hero:before{content:"";position:absolute;inset:0;opacity:.45;background-image:linear-gradient(rgba(31,95,150,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(31,95,150,.07) 1px,transparent 1px);background-size:34px 34px;mask-image:linear-gradient(to right,#000 15%,transparent 72%)}
    .hero .site-container{position:relative}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--aqua)}
    h1,h2,h3,p{margin-top:0}h1{font-size:clamp(35px,4.2vw,52px);line-height:1.18;letter-spacing:-1.5px;font-weight:800;max-width:760px;margin:16px 0 20px}
    h2{font-size:clamp(27px,3vw,34px);line-height:1.3;letter-spacing:-.6px;font-weight:800;margin-bottom:14px}h3{font-size:19px;line-height:1.45;font-weight:800}
    .hero-copy{font-size:17px;color:var(--muted);max-width:720px;margin-bottom:27px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}.hero-facts{margin-top:38px;display:flex;flex-wrap:wrap;gap:20px}
    .fact{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:14px}.fact-dot{width:8px;height:8px;background:var(--aqua);border-radius:50%;box-shadow:0 0 0 4px rgba(45,139,130,.12)}
    .brief-panel{background:#fff;border:1px solid #d5e4ef;border-radius:22px;box-shadow:var(--shadow);padding:24px;position:relative;margin-top:15px}
    .panel-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:15px;border-bottom:1px solid var(--line)}.panel-title{font-size:14px;font-weight:800}.status{font-size:12px;color:var(--aqua);background:#eaf7f5;padding:4px 9px;border-radius:99px;font-weight:700}
    .panel-feature{padding:20px 0 14px}.panel-feature strong{font-size:23px;display:block;line-height:1.35;margin-bottom:5px}.panel-feature p{font-size:14px;color:var(--muted);margin:0}
    .panel-row{display:grid;grid-template-columns:35px 1fr auto;gap:11px;align-items:center;padding:13px 0;border-top:1px solid var(--line);font-size:14px}.panel-no{color:var(--blue);font-weight:800}.panel-tag{color:var(--muted);font-size:12px;background:var(--ground);padding:2px 7px;border-radius:6px}
    .section{padding:94px 0}.section-soft{background:#eef5fa}.section-head{max-width:680px;margin-bottom:40px}.section-head p{color:var(--muted);margin:0}
    .section-number{display:block;color:var(--aqua);font-size:12px;font-weight:800;letter-spacing:.12em;margin-bottom:8px}
    .news-wrap{display:grid;grid-template-columns:1.25fr .75fr;gap:25px}.news-list,.notice-card,.feature-card,.case-card,.plan,.faq-card,.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .news-list{overflow:hidden}.news-item{display:grid;grid-template-columns:56px 1fr auto;gap:16px;align-items:center;padding:20px 22px;border-bottom:1px solid var(--line);transition:.2s}.news-item:last-child{border:0}.news-item:hover{background:#fbfdff}.news-date{color:var(--blue);font-weight:800;font-size:13px;line-height:1.35}.news-title{font-weight:800;display:block;margin-bottom:2px}.news-desc{font-size:13px;color:var(--muted);line-height:1.6}.arrow{color:var(--blue);font-size:20px}
    .notice-card{padding:28px;background:linear-gradient(145deg,#fff,#f2f8fc)}.notice-card h3{margin-top:17px}.notice-card p{font-size:14px;color:var(--muted)}.notice-list{list-style:none;padding:0;margin:20px 0}.notice-list li{font-size:14px;padding:9px 0;border-bottom:1px solid var(--line);color:var(--muted)}.notice-list li:before{content:"✓";color:var(--aqua);font-weight:800;margin-right:8px}
    .feature-layout{display:grid;grid-template-columns:.8fr 1.6fr;gap:36px}.feature-intro{padding-top:7px}.feature-intro p{color:var(--muted)}.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:17px}.feature-card{padding:23px;min-height:208px;transition:.25s}.feature-card.large{grid-row:span 2;min-height:433px;background:linear-gradient(160deg,#fff,#f1f7fb)}.feature-card:hover,.case-card:hover,.plan:hover{transform:translateY(-3px);border-color:#bdd6e8;box-shadow:var(--shadow-hover)}
    .icon-box{width:42px;height:42px;border-radius:12px;background:var(--blue-pale);color:var(--blue);display:grid;place-items:center;margin-bottom:18px}.icon-box svg{width:21px;height:21px}.feature-card p{font-size:14px;color:var(--muted);margin-bottom:15px}.micro-link{font-size:13px;font-weight:800;color:var(--blue)}
    .scenario-tabs{border-bottom:1px solid var(--line);gap:18px;margin-bottom:28px}.scenario-tabs .nav-link{border:0!important;border-radius:0!important;padding:0 2px!important;height:42px;color:var(--muted)!important}.scenario-tabs .nav-link.active{background:transparent!important;color:var(--blue)!important}.scenario-tabs .nav-link.active:after{left:2px;right:2px;bottom:0}
    .scenario-card{display:grid;grid-template-columns:.9fr 1.1fr;background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}.scenario-art{min-height:330px;background:#dcecf7;position:relative;overflow:hidden}.scenario-art:before{content:"";position:absolute;width:240px;height:240px;border:1px solid rgba(31,95,150,.3);border-radius:50%;left:13%;top:16%}.scenario-art:after{content:"";position:absolute;inset:23% 13%;border:10px solid rgba(255,255,255,.7);border-radius:16px;background:repeating-linear-gradient(0deg,transparent 0 24px,rgba(31,95,150,.12) 25px 26px)}
    .scenario-body{padding:38px}.scenario-body p{color:var(--muted)}.tag{display:inline-block;background:#eff6fb;color:var(--blue);font-weight:700;font-size:12px;border:1px solid #d5e7f3;padding:4px 9px;border-radius:7px;margin:0 5px 8px 0}.check-list{padding:0;margin:20px 0 0;list-style:none}.check-list li{padding:8px 0;color:var(--muted);font-size:14px;border-bottom:1px dashed var(--line)}.check-list li:before{content:"";display:inline-block;width:7px;height:7px;background:var(--aqua);border-radius:50%;margin:0 10px 1px 0}
    .cases-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:18px}.case-card{padding:27px;transition:.25s}.case-card.primary{min-height:335px;background:linear-gradient(135deg,#fff 0%,#edf6fb 100%);position:relative}.case-index{color:var(--blue);font-weight:800;font-size:12px;letter-spacing:.11em}.case-card h3{margin:14px 0 9px}.case-card p{font-size:14px;color:var(--muted)}.case-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}.case-points span{font-size:12px;color:var(--ink);background:#fff;border:1px solid var(--line);padding:5px 8px;border-radius:6px}
    .price-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:38px;align-items:center}.price-copy p{color:var(--muted)}.plans{display:grid;grid-template-columns:1fr 1.12fr;gap:16px}.plan{padding:25px;transition:.25s}.plan.recommended{border:2px solid #b8d7ea;padding:24px;background:#fbfdff}.recommend{display:inline-block;font-size:12px;background:var(--blue);color:#fff;border-radius:5px;padding:3px 8px;font-weight:700;margin-bottom:10px}.plan h3{margin:4px 0}.plan-price{font-size:25px;font-weight:800;color:var(--ink);margin:15px 0}.plan-price small{font-size:13px;color:var(--muted);font-weight:500}.plan ul{list-style:none;padding:0;margin:15px 0 21px}.plan li{font-size:13px;color:var(--muted);padding:6px 0}.plan li:before{content:"✓";color:var(--aqua);font-weight:800;margin-right:7px}
    .trust-strip{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow)}.trust-item{padding:22px;text-align:center;border-right:1px solid var(--line);font-size:14px;font-weight:700}.trust-item:last-child{border:0}.trust-item svg{width:20px;height:20px;color:var(--aqua);margin-bottom:7px}
    .faq-card{overflow:hidden}.accordion-item{border:0;border-bottom:1px solid var(--line)}.accordion-item:last-child{border-bottom:0}.accordion-button{padding:20px 22px;font-size:16px;font-weight:800;color:var(--ink);background:#fff;box-shadow:none!important}.accordion-button:not(.collapsed){color:var(--blue);background:#f8fbfe}.accordion-button:after{background-size:16px}.accordion-body{padding:0 22px 20px;color:var(--muted);font-size:14px}
    .cta-panel{background:linear-gradient(120deg,#e7f2fa,#f5fafc);border:1px solid #d5e6f1;border-radius:22px;padding:42px;display:flex;align-items:center;justify-content:space-between;gap:25px}.cta-panel p{color:var(--muted);margin:8px 0 0}
    footer{background:var(--ink);color:#c8d4df;padding:60px 0 22px;margin-top:0}.footer-grid{display:grid;grid-template-columns:1.3fr .8fr .8fr;gap:35px}.footer-brand{color:#fff;font-weight:800;font-size:20px;margin-bottom:13px}.footer-text{font-size:14px;line-height:1.75;max-width:380px}.footer-title{color:#fff;font-size:14px;font-weight:800;margin-bottom:12px}.footer-links{list-style:none;padding:0;margin:0}.footer-links li{margin:8px 0}.footer-links a{font-size:14px;color:#c8d4df}.footer-links a:hover{color:#fff}.footer-bottom{margin-top:42px;padding-top:18px;border-top:1px solid rgba(255,255,255,.13);font-size:13px;color:#91a4b6;display:flex;justify-content:space-between;gap:12px}
    .modal-content{border:0;border-radius:18px;overflow:hidden}.modal-header{border-bottom:1px solid var(--line);padding:20px 24px}.modal-body{padding:24px}.form-label{font-size:14px;font-weight:700}.form-control,.form-select{min-height:46px;border:1px solid #cedbe5;border-radius:9px}.form-control:focus,.form-select:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(31,95,150,.11)}.form-note{font-size:12px;color:var(--subtle);margin-top:12px}
    @media(max-width:991.98px){.navbar{padding:10px 0;min-height:68px}.navbar-collapse{padding:14px 0}.navbar-nav{margin:12px 0}.nav-link{padding:0 6px!important}.nav-link.active:after{left:6px;right:auto;width:24px}.hero{padding-top:58px}.feature-layout,.price-layout{grid-template-columns:1fr}.feature-intro{max-width:650px}.scenario-card{grid-template-columns:1fr}.scenario-art{min-height:230px}.cases-grid{grid-template-columns:1fr}.case-card.primary{min-height:auto}}
    @media(max-width:767.98px){.site-container{padding:0 20px}.utility-bar .site-container{font-size:12px}.utility-bar .utility-link span{display:none}.hero{padding:50px 0 42px}.hero-copy{font-size:16px}.brief-panel{padding:19px}.section{padding:62px 0}.news-wrap,.feature-grid,.plans{grid-template-columns:1fr}.feature-card.large{grid-row:auto;min-height:220px}.news-item{grid-template-columns:45px 1fr;gap:11px;padding:17px}.news-item .arrow{display:none}.scenario-body{padding:26px}.trust-strip{grid-template-columns:repeat(2,1fr)}.trust-item:nth-child(2){border-right:0}.trust-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.cta-panel{padding:30px;display:block}.cta-panel .btn{margin-top:20px;width:100%}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:4px}}
    @media(max-width:520px){h1{font-size:33px}.hero-actions .btn{width:100%}.hero-facts{display:grid;gap:10px}.panel-row{grid-template-columns:28px 1fr}.panel-row .panel-tag{display:none}.section-head{margin-bottom:28px}.scenario-tabs{flex-wrap:nowrap;overflow:auto}.plans{gap:14px}.trust-strip{grid-template-columns:1fr}.trust-item,.trust-item:nth-child(2){border-right:0;border-bottom:1px solid var(--line)}.trust-item:last-child{border-bottom:0}.footer-grid{grid-template-columns:1fr}}
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category1 */
:root{
--blue:#1f5f96;--blue-deep:#164a77;--blue-pale:#eaf3fa;--ink:#162536;
--muted:#657486;--subtle:#8895a5;--line:#e2eaf1;--paper:#fff;
--ground:#f7f9fc;--aqua:#2d8b82;--danger:#a64b4b;--radius:16px;
--shadow:0 10px 28px rgba(28,61,92,.08);--shadow-hover:0 18px 36px rgba(28,61,92,.14)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ground);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
.site-container{max-width:1200px;margin:auto;padding:0 24px}
.utility-bar{height:36px;background:var(--blue-deep);color:#e8f3fa;font-size:13px}
.utility-bar .site-container{height:100%;display:flex;align-items:center;justify-content:space-between}
.utility-link{color:#fff;font-weight:700;transition:.2s}
.utility-link:hover{color:#bfe1f0}
.utility-link span{margin-left:4px}
.main-nav{min-height:78px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 10px rgba(22,37,54,.025)}
.navbar{min-height:78px;padding:0}
.brand{font-weight:800;letter-spacing:-.5px;color:var(--ink);font-size:20px;display:flex;align-items:center;gap:10px;white-space:nowrap}
.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--blue);display:block;position:relative}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;height:3px;background:#fff;border-radius:5px;left:8px}
.brand-mark:before{width:14px;top:10px}.brand-mark:after{width:9px;top:17px}
.navbar-nav{gap:8px}
.nav-link{height:48px;display:flex;align-items:center;padding:0 14px!important;color:var(--muted)!important;font-size:15px;font-weight:600;position:relative}
.nav-link:hover,.nav-link.active{color:var(--blue)!important}
.nav-link.active:after{content:"";position:absolute;height:2px;left:14px;right:14px;bottom:3px;background:var(--blue)}
.navbar-toggler{border:1px solid var(--line);padding:8px;border-radius:10px}
.navbar-toggler:focus{box-shadow:0 0 0 4px rgba(31,95,150,.12)}
.btn{min-height:46px;border-radius:10px;padding:10px 19px;font-weight:700;font-size:15px;transition:.22s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.btn-primary{background:var(--blue);border-color:var(--blue)}
.btn-primary:hover,.btn-primary:focus{background:var(--blue-deep);border-color:var(--blue-deep);transform:translateY(-1px)}
.btn-outline-primary{color:var(--blue);border-color:#b9d0e2;background:#fff}
.btn-outline-primary:hover,.btn-outline-primary:focus{color:var(--blue);background:var(--blue-pale);border-color:var(--blue)}
.btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(31,95,150,.22);outline-offset:3px;box-shadow:none}
.page-hero{padding:48px 0 42px;background:linear-gradient(135deg,#f8fbfe,#edf5fa);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.page-hero:after{content:"";position:absolute;right:5%;top:-75px;width:310px;height:310px;background-image:linear-gradient(rgba(31,95,150,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(31,95,150,.07) 1px,transparent 1px);background-size:24px 24px;transform:rotate(12deg)}
.page-hero .site-container{position:relative;z-index:1}
.breadcrumb{margin:0 0 14px;font-size:14px;color:var(--muted)}
.breadcrumb-item+.breadcrumb-item:before{color:var(--subtle)}
.breadcrumb-item a:hover{color:var(--blue)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.1em}
.eyebrow:before{content:"";width:22px;height:2px;background:var(--aqua)}
h1{font-size:44px;line-height:1.22;letter-spacing:-1.2px;margin:12px 0 14px;font-weight:800}
.hero-summary{max-width:780px;color:var(--muted);margin:0;font-size:16px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:21px}
.meta-chip,.tag{display:inline-flex;align-items:center;border:1px solid #d5e7f3;background:#eff6fb;color:var(--blue);font-size:12px;font-weight:700;padding:5px 10px;border-radius:7px}
.meta-chip:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--aqua);margin-right:7px}
.section{padding:70px 0}
.filter-card,.content-card,.notice-panel,.faq-card,.related-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.filter-card{padding:24px;position:sticky;top:20px}
.filter-title{font-size:17px;font-weight:800;margin:0 0 8px}
.filter-copy{color:var(--muted);font-size:14px;margin:0 0 18px}
.filter-nav{list-style:none;margin:0;padding:0}
.filter-nav li+li{border-top:1px solid var(--line)}
.filter-nav a{display:flex;align-items:center;justify-content:space-between;padding:13px 2px;font-weight:700;font-size:14px;color:var(--muted);transition:.2s}
.filter-nav a:hover,.filter-nav a.active{color:var(--blue)}
.filter-nav a.active:after{content:"当前";font-size:11px;background:var(--blue-pale);padding:2px 7px;border-radius:5px}
.filter-divider{height:1px;background:var(--line);margin:22px 0}
.mini-list{margin:0;padding:0;list-style:none}
.mini-list li{font-size:13px;color:var(--muted);padding:8px 0;display:flex;gap:9px}
.mini-list li:before{content:"✓";font-weight:800;color:var(--aqua)}
.result-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.result-bar p{margin:0;color:var(--muted);font-size:14px}
.result-bar strong{color:var(--ink)}
.sort-select{border:1px solid var(--line);background:#fff;border-radius:9px;padding:8px 11px;color:var(--muted);font-size:13px;outline:none}
.featured-card{display:grid;grid-template-columns:.98fr 1.2fr;overflow:hidden;margin-bottom:20px;transition:.25s}
.content-card{overflow:hidden;transition:.25s}
.content-card:hover,.related-card:hover{transform:translateY(-3px);border-color:#bdd6e8;box-shadow:var(--shadow-hover)}
.card-visual{min-height:220px;background:#dfeef7;position:relative;overflow:hidden}
.featured-card .card-visual{min-height:285px}
.card-visual:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(31,95,150,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(31,95,150,.14) 1px,transparent 1px);background-size:29px 29px}
.card-visual:after{content:"";position:absolute;width:155px;height:155px;border:1px solid rgba(31,95,150,.35);border-radius:18px;right:28px;bottom:25px;transform:rotate(14deg);box-shadow:-34px -25px 0 rgba(255,255,255,.43)}
.visual-code{position:absolute;top:22px;left:22px;z-index:1;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.12em}
.visual-line{position:absolute;z-index:1;left:22px;bottom:26px;width:95px;height:7px;background:var(--blue);box-shadow:0 14px 0 rgba(31,95,150,.45),0 28px 0 rgba(31,95,150,.22)}
.card-body-custom{padding:27px}
.card-body-custom h2,.card-body-custom h3{font-size:22px;line-height:1.4;font-weight:800;margin:12px 0 10px}
.card-body-custom h3{font-size:18px}
.card-body-custom p{margin:0;color:var(--muted);font-size:14px}
.card-meta{display:flex;justify-content:space-between;gap:10px;margin-top:21px;padding-top:15px;border-top:1px solid var(--line);font-size:12px;color:var(--subtle)}
.card-link{font-size:14px;font-weight:800;color:var(--blue);white-space:nowrap}
.card-link:hover{color:var(--blue-deep)}
.standard-card{height:100%;display:flex;flex-direction:column}
.standard-card .card-body-custom{flex:1;display:flex;flex-direction:column}
.standard-card .card-meta{margin-top:auto}
.notice-panel{margin:27px 0;padding:25px 27px;background:linear-gradient(120deg,#f5fbff,#fff)}
.notice-panel h2{font-size:19px;font-weight:800;margin:0 0 8px}
.notice-panel p{margin:0;color:var(--muted);font-size:14px}
.notice-icon{width:38px;height:38px;flex:0 0 38px;border-radius:10px;background:var(--blue-pale);display:grid;place-items:center;color:var(--blue);font-weight:900}
.pagination{gap:8px;margin:34px 0 0}
.page-link{width:42px;height:42px;display:grid;place-items:center;border:1px solid var(--line)!important;border-radius:9px!important;color:var(--muted);font-size:14px;font-weight:700;background:#fff}
.page-link:hover{background:var(--blue-pale);color:var(--blue)}
.page-item.active .page-link{background:var(--blue);border-color:var(--blue)!important;color:#fff}
.page-item.disabled .page-link{color:#b4bec8;background:#f8fafc}
.bottom-area{background:#eef5fa;padding:66px 0}
.section-kicker{font-size:12px;color:var(--aqua);font-weight:800;letter-spacing:.1em;margin-bottom:8px}
.section-title{font-size:30px;line-height:1.35;font-weight:800;letter-spacing:-.5px;margin:0 0 12px}
.section-copy{color:var(--muted);margin:0}
.faq-card{overflow:hidden}
.accordion-item{border:0;border-bottom:1px solid var(--line)}
.accordion-item:last-child{border-bottom:0}
.accordion-button{font-weight:800;color:var(--ink);padding:19px 21px;box-shadow:none!important;background:#fff}
.accordion-button:not(.collapsed){color:var(--blue);background:#fafdff}
.accordion-button:after{background-size:15px;filter:sepia(1) saturate(3) hue-rotate(160deg)}
.accordion-body{padding:0 21px 20px;color:var(--muted);font-size:14px}
.related-card{padding:21px;height:100%;transition:.25s}
.related-card h3{font-size:18px;font-weight:800;margin:12px 0 8px}
.related-card p{font-size:14px;color:var(--muted);margin:0 0 16px}
.footer-brand{font-size:20px;font-weight:800;color:#fff;margin-bottom:12px}
footer{background:var(--ink);color:#d7e1e8;padding:58px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.45fr .8fr .8fr;gap:55px}
.footer-text{font-size:14px;line-height:1.85;color:#aebdca;max-width:410px;margin:0}
.footer-title{color:#fff;font-weight:800;margin:3px 0 12px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin:8px 0}
.footer-links a{font-size:14px;color:#b9c7d1;transition:.2s}
.footer-links a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:18px;font-size:13px;color:#9eafbb;display:flex;justify-content:space-between;gap:15px}
.modal-content{border:0;border-radius:18px;box-shadow:0 20px 55px rgba(22,37,54,.22)}
.modal-header{border-bottom:1px solid var(--line);padding:22px 24px}
.modal-title{font-size:19px;font-weight:800}
.modal-body{padding:24px}
.form-label{font-size:14px;font-weight:700;margin-bottom:6px}
.form-control,.form-select{border:1px solid var(--line);border-radius:10px;min-height:45px;padding:10px 12px;color:var(--ink)}
.form-control:focus,.form-select:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(31,95,150,.1)}
.form-text{color:var(--subtle);font-size:12px}
@media(max-width:991.98px){
.navbar>.site-container{flex-wrap:wrap}.navbar-collapse{padding:8px 0 18px}.navbar-nav{align-items:stretch!important}.nav-link{height:46px}
.filter-card{position:static;margin-bottom:24px}.featured-card{grid-template-columns:1fr}.featured-card .card-visual{min-height:220px}
.footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:28px}
}
@media(max-width:767.98px){
.site-container{padding:0 20px}.utility-bar .site-container{font-size:11px}.utility-link{font-size:12px}
.page-hero{padding:35px 0}.breadcrumb{font-size:13px}h1{font-size:33px;letter-spacing:-.7px}.hero-summary{font-size:15px}
.section{padding:50px 0}.result-bar{align-items:flex-start;gap:12px;flex-direction:column}.card-body-custom{padding:22px}
.section-title{font-size:26px}.bottom-area{padding:50px 0}.footer-grid{grid-template-columns:1fr;gap:28px}.footer-bottom{flex-direction:column;gap:4px}
}
@media(max-width:519.98px){
.brand{font-size:17px}.brand-mark{width:28px;height:28px}.navbar{min-height:70px}.main-nav{min-height:70px}
.utility-bar span:first-child{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:210px}.meta-chip{font-size:11px}
.card-visual,.featured-card .card-visual{min-height:180px}.pagination{gap:5px}.page-link{width:38px;height:38px}.modal-dialog{margin:10px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* roulang page: category2 */
:root{
--blue:#1f5f96;--blue-deep:#164a77;--blue-pale:#eaf3fa;--ink:#162536;
--muted:#657486;--subtle:#8895a5;--line:#e2eaf1;--paper:#fff;
--ground:#f7f9fc;--aqua:#2d8b82;--danger:#a64b4b;--radius:16px;
--shadow:0 10px 28px rgba(28,61,92,.08);--shadow-hover:0 18px 36px rgba(28,61,92,.14)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ground);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit}
.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.utility-bar{height:36px;background:var(--blue-deep);color:#dcebf5;font-size:13px}
.utility-bar .site-container{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px}
.utility-link{color:#fff;font-weight:700;white-space:nowrap}
.utility-link span{margin-left:5px;transition:transform .2s ease}
.utility-link:hover span{display:inline-block;transform:translateX(3px)}
.main-nav{min-height:78px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 10px rgba(22,37,54,.025)}
.navbar{min-height:78px;padding:0}
.brand{font-weight:800;letter-spacing:-.5px;color:var(--ink);font-size:20px;display:flex;align-items:center;gap:10px;white-space:nowrap}
.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--blue);display:grid;place-items:center;position:relative;flex:0 0 auto}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;height:3px;background:#fff;border-radius:5px;left:8px}
.brand-mark:before{width:14px;top:10px}.brand-mark:after{width:9px;top:17px}
.navbar-nav{gap:8px}
.nav-link{height:48px;display:flex;align-items:center;padding:0 14px!important;color:var(--muted)!important;font-size:15px;font-weight:600;position:relative}
.nav-link:hover,.nav-link.active{color:var(--blue)!important}
.nav-link.active:after{content:"";position:absolute;height:2px;left:14px;right:14px;bottom:3px;background:var(--blue)}
.navbar-toggler{border:1px solid var(--line);padding:8px;border-radius:10px}
.navbar-toggler:focus{box-shadow:0 0 0 4px rgba(31,95,150,.12)}
.btn{min-height:46px;border-radius:10px;padding:10px 19px;font-weight:700;font-size:15px;transition:.22s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.btn-primary{background:var(--blue);border-color:var(--blue)}
.btn-primary:hover,.btn-primary:focus{background:var(--blue-deep);border-color:var(--blue-deep);transform:translateY(-1px)}
.btn-outline-primary{color:var(--blue);border-color:#b9d0e2;background:#fff}
.btn-outline-primary:hover,.btn-outline-primary:focus{color:var(--blue);background:var(--blue-pale);border-color:var(--blue)}
.btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(31,95,150,.22);outline-offset:3px;box-shadow:none}
.breadcrumb-wrap{background:#fff;border-bottom:1px solid var(--line)}
.breadcrumb{margin:0;padding:17px 0;font-size:13px;color:var(--subtle)}
.breadcrumb-item+.breadcrumb-item:before{color:#aab6c2}
.breadcrumb-item a:hover{color:var(--blue)}
.category-hero{position:relative;overflow:hidden;padding:45px 0 50px;background:linear-gradient(135deg,#f9fcfe 0%,#edf5fa 100%);border-bottom:1px solid var(--line)}
.category-hero:after{content:"";position:absolute;right:-80px;top:-100px;width:380px;height:380px;opacity:.5;background-image:linear-gradient(rgba(31,95,150,.09) 1px,transparent 1px),linear-gradient(90deg,rgba(31,95,150,.09) 1px,transparent 1px);background-size:26px 26px;transform:rotate(8deg)}
.category-hero .site-container{position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.1em}
.eyebrow:before{content:"";width:24px;height:2px;background:var(--aqua)}
h1,h2,h3,h4{color:var(--ink);font-weight:800}
h1{font-size:44px;line-height:1.2;letter-spacing:-1.2px;margin:11px 0 14px}
.category-copy{max-width:790px;color:var(--muted);margin:0;font-size:16px}
.category-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.meta-chip,.tag{display:inline-flex;align-items:center;min-height:29px;border:1px solid #d5e7f3;background:#eff6fb;color:var(--blue);font-size:12px;font-weight:700;padding:3px 9px;border-radius:7px}
.meta-chip:before{content:"";width:6px;height:6px;margin-right:7px;border-radius:50%;background:var(--aqua)}
.section{padding:74px 0}
.topic-filter{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:34px;padding-bottom:21px;border-bottom:1px solid var(--line)}
.filter-button{border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:9px;min-height:42px;padding:8px 14px;font-size:14px;font-weight:700;transition:.2s ease}
.filter-button:hover,.filter-button.active{color:var(--blue);border-color:#bcd5e7;background:var(--blue-pale)}
.content-layout{display:grid;grid-template-columns:4fr 8fr;gap:32px;align-items:start}
.index-panel{position:sticky;top:22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.index-panel-head{padding:22px 22px 14px;border-bottom:1px solid var(--line)}
.index-panel-head h2{font-size:19px;margin:3px 0 0}
.index-nav{padding:10px}
.index-nav a{display:grid;grid-template-columns:28px 1fr;gap:10px;align-items:center;padding:12px;border-radius:10px;color:var(--muted);font-size:14px;font-weight:700;transition:.2s ease}
.index-nav a:hover,.index-nav a.active{color:var(--blue);background:var(--blue-pale)}
.index-no{font-size:11px;letter-spacing:.06em;color:var(--aqua);font-weight:800}
.index-note{padding:17px 22px 21px;margin:0;color:var(--muted);font-size:13px;border-top:1px solid var(--line)}
.featured-topic{position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:32px;margin-bottom:20px}
.featured-topic:before{content:"";position:absolute;right:-20px;bottom:-55px;width:230px;height:230px;border:32px solid #e7f2f9;border-radius:50%}
.featured-topic>*{position:relative;z-index:1}
.topic-kicker{display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--aqua);font-size:12px;font-weight:800;letter-spacing:.1em}
.topic-kicker .case-id{color:var(--subtle);letter-spacing:.08em}
.featured-topic h2{font-size:28px;line-height:1.35;margin:12px 0 12px;max-width:620px}
.featured-topic p{max-width:640px;margin:0;color:var(--muted)}
.topic-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.topic-points span{font-size:13px;color:var(--muted);padding:6px 10px;background:var(--ground);border-radius:8px}
.topic-points span:before{content:"✓";color:var(--aqua);font-weight:800;margin-right:6px}
.topic-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.topic-row{display:grid;grid-template-columns:48px 1fr auto;gap:16px;align-items:center;padding:23px 24px;border-bottom:1px solid var(--line);transition:.22s ease}
.topic-row:last-child{border-bottom:0}
.topic-row:hover{background:#fbfdff}
.topic-row:hover .row-arrow{transform:translateX(4px);color:var(--blue-deep)}
.row-no{font-size:13px;font-weight:800;color:var(--aqua);letter-spacing:.06em}
.row-content h3{font-size:18px;margin:0 0 5px;line-height:1.45}
.row-content p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}
.row-tags{display:flex;gap:7px;flex-wrap:wrap;margin-top:10px}
.row-tags .tag{min-height:24px;padding:2px 7px;font-size:11px}
.row-arrow{font-size:24px;color:var(--blue);transition:.2s ease}
.notice-card{margin:30px 0;background:linear-gradient(135deg,#eaf4fa,#f7fbfd);border:1px solid #d2e4f0;border-radius:var(--radius);padding:24px 27px;display:flex;align-items:flex-start;gap:16px}
.notice-icon{width:38px;height:38px;display:grid;place-items:center;flex:0 0 auto;border-radius:11px;background:var(--blue);color:#fff;font-weight:800}
.notice-card h3{font-size:17px;margin:0 0 4px}
.notice-card p{font-size:14px;color:var(--muted);margin:0}
.related-section{margin-top:48px}
.section-heading{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:20px}
.section-heading h2{font-size:25px;margin:4px 0 0}
.section-heading p{font-size:14px;color:var(--muted);margin:0}
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.related-card{display:grid;grid-template-columns:116px 1fr;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);transition:.22s ease}
.related-card:hover{transform:translateY(-3px);border-color:#bdd6e8;box-shadow:var(--shadow-hover)}
.card-visual{height:100%;min-height:104px;border-radius:11px;background:linear-gradient(145deg,#d9ebf6,#f4f9fc);position:relative;overflow:hidden}
.card-visual:before,.card-visual:after{content:"";position:absolute;border:1px solid rgba(31,95,150,.22);border-radius:50%}
.card-visual:before{width:105px;height:105px;right:-43px;top:-28px}.card-visual:after{width:55px;height:55px;left:13px;bottom:-25px}
.related-card h3{font-size:17px;line-height:1.45;margin:7px 0 5px}
.related-card p{font-size:13px;line-height:1.7;color:var(--muted);margin:0}
.pagination{gap:8px;margin:36px 0 0}
.page-link{min-width:42px;height:42px;display:grid;place-items:center;padding:0;border:1px solid var(--line);border-radius:9px!important;color:var(--muted);font-weight:700;background:#fff}
.page-link:hover{color:var(--blue);background:var(--blue-pale);border-color:#bdd6e8}
.page-item.active .page-link{background:var(--blue);border-color:var(--blue);color:#fff}
.cta-strip{padding:0 0 74px}
.cta-panel{display:flex;justify-content:space-between;align-items:center;gap:25px;background:#eaf3fa;border:1px solid #d4e5f0;border-radius:20px;padding:30px 34px}
.cta-panel h2{font-size:24px;margin:0 0 5px}
.cta-panel p{margin:0;color:var(--muted);font-size:14px}
footer{background:#162536;color:#d8e2ea;padding:55px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:42px}
.footer-brand{font-size:21px;color:#fff;font-weight:800;margin-bottom:10px}
.footer-text{color:#aebdca;font-size:14px;line-height:1.8;max-width:390px;margin:0}
.footer-title{font-size:14px;color:#fff;font-weight:800;margin-bottom:12px}
.footer-links{margin:0;padding:0;list-style:none}
.footer-links li{margin-bottom:8px}
.footer-links a{font-size:14px;color:#aebdca;transition:.2s ease}
.footer-links a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:42px;padding:17px 0;display:flex;justify-content:space-between;gap:15px;color:#91a3b1;font-size:13px}
.modal-content{border:0;border-radius:18px;box-shadow:0 18px 55px rgba(22,37,54,.22)}
.modal-header,.modal-footer{border-color:var(--line);padding:20px 24px}
.modal-body{padding:22px 24px}
.form-label{font-size:14px;font-weight:700;color:var(--ink)}
.form-control,.form-select{border:1px solid var(--line);border-radius:10px;min-height:46px;color:var(--ink)}
.form-control:focus,.form-select:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(31,95,150,.12)}
textarea.form-control{min-height:108px}
.form-text{font-size:12px;color:var(--subtle)}
@media(max-width:991.98px){
.navbar-collapse{padding:12px 0 18px}.navbar-nav{align-items:stretch!important;gap:2px}.nav-link{height:46px}.nav-link.active:after{left:14px;right:auto;width:28px}.navbar-collapse .btn{margin-top:10px;width:100%}
.content-layout{grid-template-columns:1fr}.index-panel{position:static}.index-panel-head{display:flex;align-items:center;justify-content:space-between}.index-nav{display:flex;overflow:auto;gap:5px;padding:10px}.index-nav a{flex:0 0 auto;display:flex;gap:8px}.index-note{display:none}
}
@media(max-width:767.98px){
.site-container{padding:0 20px}.utility-bar{font-size:12px}.utility-bar .site-container span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.brand{font-size:17px}.category-hero{padding:34px 0 38px}h1{font-size:33px}.category-copy{font-size:15px}.section{padding:52px 0}
.topic-filter{flex-wrap:nowrap;overflow-x:auto;padding-bottom:14px;margin-bottom:24px}.filter-button{white-space:nowrap;flex:0 0 auto}
.featured-topic{padding:24px}.featured-topic h2{font-size:23px}.topic-row{grid-template-columns:34px 1fr auto;gap:10px;padding:19px 17px}.row-content h3{font-size:16px}.row-content p{font-size:13px}.row-arrow{font-size:20px}
.notice-card{padding:20px;gap:12px}.related-grid{grid-template-columns:1fr}.section-heading{align-items:start;flex-direction:column;gap:4px}.cta-panel{padding:25px;align-items:flex-start;flex-direction:column}.cta-panel .btn{width:100%}
.footer-grid{grid-template-columns:1fr;gap:28px}.footer-bottom{flex-direction:column;gap:3px;margin-top:32px}.related-card{grid-template-columns:92px 1fr;gap:14px}.card-visual{min-height:91px}
}
@media(max-width:519.98px){
.utility-link{font-size:0}.utility-link span{font-size:16px;margin:0}.category-meta{gap:7px}.meta-chip{font-size:11px}.topic-kicker{align-items:flex-start;flex-direction:column;gap:4px}.topic-points{gap:7px}.topic-points span{font-size:12px}.topic-row{grid-template-columns:28px 1fr}.row-arrow{display:none}.pagination .page-item:nth-child(4),.pagination .page-item:nth-child(5){display:none}
}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}