/* roulang page: index */
:root{
      --ink:#13233A;--blue:#1F5FBA;--blue-dark:#164A94;--blue-50:#F6FAFF;
      --blue-100:#EAF3FF;--cyan:#148B8B;--line:#DCE7F3;--muted:#607187;
      --surface:#fff;--warning:#C56A28;--radius:20px;--radius-sm:14px;
      --shadow:0 12px 32px rgba(26,67,113,.08);--shadow-lg:0 18px 44px rgba(26,67,113,.14);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--surface);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid rgba(31,95,186,.34);outline-offset:3px}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}
    .header-inner{max-width:1240px;min-height:80px;margin:auto;padding:0 28px;display:flex;align-items:center;gap:24px}
    .brand{display:flex;align-items:center;gap:10px;min-width:max-content;font-weight:800;font-size:18px;color:var(--ink);letter-spacing:-.4px}
    .brand-mark{width:30px;height:30px;border-radius:9px;background:var(--blue);display:grid;grid-template-columns:repeat(2,1fr);gap:4px;padding:6px;box-shadow:0 6px 14px rgba(31,95,186,.22)}
    .brand-mark i{display:block;background:#fff;border-radius:2px}.brand-mark i:last-child{background:#8ed7d7}
    .tabs{display:flex;align-items:center;gap:4px;padding:5px;background:#edf4fb;border:1px solid #e3edf7;border-radius:999px;margin:auto}
    .tabs a{display:inline-flex;min-height:38px;align-items:center;padding:0 15px;border-radius:999px;color:#52667f;font-size:14px;font-weight:700;transition:.2s ease}
    .tabs a:hover{background:#dfeeff;color:var(--blue)}
    .tabs a.active{background:var(--blue);color:#fff;box-shadow:0 5px 12px rgba(31,95,186,.22)}
    .header-cta,.btn-primary,.btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;border-radius:13px;font-weight:800;transition:transform .2s ease,box-shadow .2s ease,background .2s ease}
    .header-cta,.btn-primary{background:var(--blue);color:#fff;border:1px solid var(--blue);padding:0 17px;box-shadow:0 7px 16px rgba(31,95,186,.18)}
    .header-cta:hover,.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 11px 23px rgba(31,95,186,.24)}
    .header-cta:active,.btn-primary:active{transform:translateY(0)}
    .btn-secondary{background:#fff;color:var(--blue);border:1px solid #bcd4ef;padding:0 17px}
    .btn-secondary:hover{background:var(--blue-50);border-color:var(--blue)}
    .container{width:min(1184px,calc(100% - 48px));margin:auto}
    .hero{position:relative;overflow:hidden;background:linear-gradient(140deg,#f8fbff 0%,#eef6ff 57%,#f9fcff 100%);border-bottom:1px solid #e5eff9}
    .hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(31,95,186,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(31,95,186,.045) 1px,transparent 1px);background-size:32px 32px;mask-image:linear-gradient(90deg,#000,transparent 85%)}
    .hero-inner{position:relative;min-height:500px;padding:68px 0 54px;display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
    .eyebrow{display:flex;align-items:center;gap:9px;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:26px;height:2px;background:var(--cyan)}
    h1,h2,h3,p{margin-top:0}h1{max-width:700px;margin:15px 0 18px;font-size:clamp(38px,5vw,56px);line-height:1.16;letter-spacing:-1.8px;font-weight:850}
    .hero-copy{max-width:650px;color:#4e637c;font-size:17px;line-height:1.9}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}
    .feature-line{display:flex;flex-wrap:wrap;gap:20px;padding-top:18px;border-top:1px solid #cfdfef;color:#566b83;font-size:14px}
    .feature-line span{display:flex;align-items:center;gap:7px}.dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(20,139,139,.1)}
    .index-stage{position:relative;padding:18px}
    .stage-card{position:relative;background:#fff;border:1px solid #dbe8f5;border-radius:24px;padding:25px;box-shadow:var(--shadow-lg);overflow:hidden}
    .stage-card:after{content:"";position:absolute;right:-42px;top:-36px;width:156px;height:156px;border:26px solid #e9f3ff;border-radius:50%}
    .stage-head{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
    .stage-title{font-size:14px;font-weight:800}.status{display:inline-flex;align-items:center;gap:6px;color:var(--cyan);font-size:12px;font-weight:800}.status i{width:7px;height:7px;border-radius:50%;background:var(--cyan)}
    .stage-route{position:relative;z-index:1;display:grid;grid-template-columns:42px 1fr;gap:13px;align-items:center;padding:17px 0;border-bottom:1px solid #edf2f7}
    .stage-number{width:38px;height:38px;display:grid;place-items:center;border-radius:11px;background:var(--blue-100);color:var(--blue);font-weight:850}
    .route-text strong{display:block;font-size:15px}.route-text small{display:block;color:var(--muted);font-size:12px;line-height:1.5}
    .mini-bars{display:flex;gap:5px;margin-top:7px}.mini-bars i{display:block;height:4px;border-radius:5px;background:#bdd9f6}.mini-bars i:nth-child(1){width:38%}.mini-bars i:nth-child(2){width:25%;background:#7fb5ec}.mini-bars i:nth-child(3){width:16%;background:#a5d8d8}
    section{padding:96px 0}.section-top{display:flex;align-items:end;justify-content:space-between;gap:26px;margin-bottom:34px}.section-kicker{color:var(--blue);font-size:13px;font-weight:850;letter-spacing:.1em}.section-title{margin:7px 0 0;font-size:clamp(29px,3vw,38px);line-height:1.28;letter-spacing:-1px}.section-desc{max-width:530px;margin:0;color:var(--muted);font-size:15px}
    .dashboard{background:var(--surface)}.metric-grid{display:grid;grid-template-columns:1.35fr .85fr .85fr;grid-template-rows:auto auto;gap:16px}
    .metric{min-height:178px;padding:23px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 4px 13px rgba(34,73,116,.035);transition:.22s ease}
    .metric:hover{border-color:#91bbe8;box-shadow:var(--shadow);transform:translateY(-4px)}
    .metric-main{grid-row:span 2;min-height:372px;background:linear-gradient(145deg,#f4f9ff,#fff)}
    .metric-label{display:flex;justify-content:space-between;color:var(--muted);font-size:13px;font-weight:700}.metric-label i{width:8px;height:8px;border-radius:50%;background:var(--cyan)}
    .metric-value{margin:19px 0 8px;font-size:34px;line-height:1.15;font-weight:850;letter-spacing:-1px}.metric-main .metric-value{margin-top:60px;font-size:49px}
    .metric p{margin:0;color:#5f7288;font-size:14px;line-height:1.7}.progress{height:7px;margin-top:24px;background:#e8f0f8;border-radius:999px;overflow:hidden}.progress b{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--blue),#70abdF)}.metric-main .progress{margin-top:29px}.metric-main .progress b{width:76%}
    .matrix-wrap{background:var(--blue-50)}.matrix{display:grid;grid-template-columns:1.12fr .88fr;gap:16px}.matrix-main,.matrix-card{position:relative;display:flex;flex-direction:column;justify-content:space-between;min-height:220px;padding:27px;border:1px solid var(--line);border-radius:22px;background:#fff;overflow:hidden;transition:.22s ease}.matrix-main{min-height:456px;background:#eaf4ff}.matrix-side{display:grid;grid-template-columns:1fr 1fr;gap:16px}.matrix-card{min-height:220px}.matrix-main:hover,.matrix-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#a9c9ec}
    .card-no{color:var(--blue);font-weight:850;font-size:13px;letter-spacing:.08em}.matrix h3{margin:12px 0 8px;font-size:23px;line-height:1.35}.matrix-card h3{font-size:17px}.matrix p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}.card-link{display:inline-flex;align-items:center;gap:7px;margin-top:22px;color:var(--blue);font-size:14px;font-weight:850}.card-link span{font-size:18px;transition:.2s}.matrix-card:hover .card-link span,.matrix-main:hover .card-link span{transform:translateX(4px)}
    .index-orbit{position:absolute;right:-60px;bottom:-80px;width:270px;height:270px;border:24px solid rgba(31,95,186,.08);border-radius:50%}.index-orbit:after,.index-orbit:before{content:"";position:absolute;border-radius:50%;background:var(--cyan)}.index-orbit:before{width:14px;height:14px;top:38px;left:30px}.index-orbit:after{width:10px;height:10px;right:30px;bottom:46px}
    .compare-grid{display:grid;grid-template-columns:1fr 54px 1fr;align-items:stretch}.compare-card{padding:30px;border-radius:22px;border:1px solid var(--line);background:#fff;box-shadow:0 5px 18px rgba(27,68,112,.05)}.compare-card.tinted{background:#edf6ff;border-color:#cee2f7}.compare-middle{display:flex;align-items:center;justify-content:center}.versus{width:42px;height:42px;display:grid;place-items:center;border:1px solid #c7daee;background:#fff;border-radius:50%;color:var(--blue);font-size:12px;font-weight:850}.path{display:flex;gap:7px;margin:16px 0 25px}.path i{position:relative;display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:#dbeafa;color:var(--blue);font-size:12px;font-style:normal;font-weight:850}.path i:not(:last-child):after{content:"";position:absolute;left:25px;width:7px;height:1px;background:#9fc1e5}.compare-card h3{margin:0 0 15px;font-size:24px}.compare-card ul{padding:0;margin:0;list-style:none}.compare-card li{position:relative;padding:0 0 11px 26px;color:#526980;font-size:14px}.compare-card li:before{content:"✓";position:absolute;left:0;top:1px;color:var(--cyan);font-weight:850}.compare-card .btn-secondary{margin-top:18px}
    .faq-section{background:#f9fcff}.faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px}.faq-intro{padding-top:6px}.faq-intro p{color:var(--muted);font-size:15px}.faq-line{width:80px;height:3px;margin-top:25px;background:linear-gradient(90deg,var(--blue),var(--cyan));border-radius:9px}.faq-list{display:grid;gap:11px}.faq-item{border:1px solid var(--line);border-radius:15px;background:#fff;overflow:hidden;transition:.2s}.faq-item.open{border-color:#91bce9;box-shadow:0 7px 20px rgba(30,81,136,.07)}.faq-question{width:100%;min-height:60px;padding:15px 18px;display:flex;align-items:center;justify-content:space-between;gap:18px;border:0;background:#fff;text-align:left;color:var(--ink);font-size:15px;font-weight:800}.faq-icon{flex:0 0 auto;width:26px;height:26px;display:grid;place-items:center;border-radius:50%;background:var(--blue-100);color:var(--blue);font-size:20px;line-height:1;transition:.2s}.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--blue);color:#fff}.faq-answer{display:none;padding:0 52px 19px 18px;color:#5c7086;font-size:14px;line-height:1.85}.faq-item.open .faq-answer{display:block}
    .form-section{padding-top:90px}.form-shell{display:grid;grid-template-columns:.83fr 1.17fr;gap:38px;padding:40px;background:#eaf4ff;border:1px solid #d4e6f8;border-radius:26px}.form-copy h2{margin:8px 0 14px;font-size:34px;line-height:1.3}.form-copy>p{color:#516a83;font-size:15px}.notice-list{padding:0;margin:25px 0 0;list-style:none}.notice-list li{display:flex;gap:10px;margin:12px 0;color:#526a82;font-size:14px}.notice-list b{display:grid;place-items:center;flex:0 0 23px;height:23px;border-radius:8px;background:#fff;color:var(--cyan);font-size:12px}.form-card{padding:24px;background:#fff;border:1px solid #d7e6f5;border-radius:19px;box-shadow:0 10px 25px rgba(31,86,139,.08)}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:13px}.field{margin-bottom:14px}.field label{display:block;margin-bottom:6px;color:#3a526c;font-size:13px;font-weight:800}.field label em{color:var(--warning);font-style:normal}input,select,textarea{width:100%;border:1px solid #cdddea;border-radius:12px;background:#fff;color:var(--ink);padding:12px 13px;transition:.2s}input,select{height:48px}textarea{height:112px;resize:vertical}input::placeholder,textarea::placeholder{color:#93a3b5}input:focus,select:focus,textarea:focus{border-color:var(--blue);outline:none;box-shadow:0 0 0 4px rgba(31,95,186,.12)}.check-line{display:flex;align-items:flex-start;gap:9px;margin:5px 0 16px;color:#62758a;font-size:12px;line-height:1.6}.check-line input{width:17px;height:17px;margin-top:2px;accent-color:var(--blue)}.submit-btn{width:100%;min-height:50px;border:0}.form-tip{margin:11px 0 0;text-align:center;color:#738397;font-size:12px}
    footer{margin-top:96px;padding:56px 0 25px;background:#13233A;color:#d9e5f2}.footer-grid{display:grid;grid-template-columns:1.25fr .8fr .8fr;gap:42px;padding-bottom:38px}.footer-brand{color:#fff}.footer-brand .brand-mark{box-shadow:none}.footer-brand p{max-width:360px;margin:15px 0 0;color:#9fb1c5;font-size:14px}.footer-title{margin:0 0 13px;color:#fff;font-size:14px}.footer-links{display:grid;gap:9px}.footer-links a{color:#aebfd1;font-size:14px;transition:.2s}.footer-links a:hover{color:#fff;padding-left:3px}.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid rgba(220,231,243,.14);color:#8fa4ba;font-size:12px}
    @media(max-width:1024px){.header-inner{padding:0 20px;gap:14px}.brand{font-size:16px}.tabs a{padding:0 11px}.hero-inner{gap:28px}.faq-layout{gap:38px}.matrix-main{min-height:420px}}
    @media(max-width:768px){.header-inner{min-height:104px;padding:12px 16px;display:grid;grid-template-columns:1fr auto;gap:9px}.tabs{grid-column:1/-1;order:3;width:100%;overflow-x:auto;justify-content:flex-start;border-radius:14px;padding:4px;scrollbar-width:none}.tabs::-webkit-scrollbar{display:none}.tabs a{white-space:nowrap;min-height:36px}.header-cta{min-height:40px;padding:0 12px;font-size:13px}.container{width:min(100% - 32px,1184px)}.hero-inner{min-height:auto;padding:53px 0 44px;grid-template-columns:1fr}.index-stage{max-width:560px;margin:auto;width:100%}section{padding:66px 0}.section-top{display:block;margin-bottom:25px}.section-desc{margin-top:12px}.metric-grid{grid-template-columns:1fr 1fr;grid-template-rows:auto}.metric-main{grid-column:1/-1;grid-row:auto;min-height:270px}.metric-main .metric-value{margin-top:32px}.matrix{grid-template-columns:1fr}.matrix-main{min-height:330px}.compare-grid{grid-template-columns:1fr;gap:13px}.compare-middle{height:28px}.faq-layout,.form-shell{grid-template-columns:1fr;gap:24px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:1/-1}}
    @media(max-width:520px){body{font-size:15px}.brand{font-size:15px}.brand-mark{width:27px;height:27px;padding:5px}.header-cta{font-size:12px}.hero-copy{font-size:15px}.hero-actions{display:grid;grid-template-columns:1fr}.hero-actions a{width:100%}h1{font-size:34px;letter-spacing:-1px}.feature-line{display:grid;gap:9px}.stage-card{padding:18px}.metric-grid,.matrix-side,.field-row{grid-template-columns:1fr}.metric{min-height:155px}.metric-main{min-height:245px}.matrix-main{min-height:300px}.section-title{font-size:29px}.compare-card{padding:23px}.faq-question{padding:14px;font-size:14px}.faq-answer{padding:0 15px 16px;font-size:13px}.form-shell{padding:23px 16px;border-radius:20px}.form-card{padding:17px}.form-copy h2{font-size:28px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:6px}}

/* roulang page: category1 */
:root{
 --ink:#13233A;--blue:#1F5FBA;--blue-dark:#164A94;--blue-50:#F6FAFF;
 --blue-100:#EAF3FF;--cyan:#148B8B;--line:#DCE7F3;--muted:#607187;
 --surface:#fff;--warning:#C56A28;--radius:20px;--radius-sm:14px;
 --shadow:0 12px 32px rgba(26,67,113,.08);--shadow-lg:0 18px 44px rgba(26,67,113,.14);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--surface);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.75}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid rgba(31,95,186,.34);outline-offset:3px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}
.header-inner{max-width:1240px;min-height:80px;margin:auto;padding:0 28px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;min-width:max-content;font-weight:800;font-size:18px;color:var(--ink);letter-spacing:-.4px}
.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--blue);display:grid;grid-template-columns:repeat(2,1fr);gap:4px;padding:6px;box-shadow:0 6px 14px rgba(31,95,186,.22)}
.brand-mark i{display:block;background:#fff;border-radius:2px}
.brand-mark i:last-child{background:#8ed7d7}
.tabs{display:flex;align-items:center;gap:4px;padding:4px;background:#f0f6fd;border-radius:999px}
.tabs a{display:inline-flex;min-height:38px;align-items:center;padding:0 15px;border-radius:999px;color:#52667f;font-size:14px;font-weight:700;white-space:nowrap;transition:.2s ease}
.tabs a:hover{background:#dfeeff;color:var(--blue)}
.tabs a.active{background:var(--blue);color:#fff;box-shadow:0 5px 12px rgba(31,95,186,.22)}
.header-cta,.btn-primary,.btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;border-radius:13px;font-weight:800;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease}
.header-cta{margin-left:auto}
.header-cta,.btn-primary{background:var(--blue);color:#fff;border:1px solid var(--blue);padding:0 17px;box-shadow:0 7px 16px rgba(31,95,186,.18)}
.header-cta:hover,.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 11px 23px rgba(31,95,186,.24)}
.header-cta:active,.btn-primary:active{transform:translateY(0)}
.btn-secondary{background:#fff;color:var(--blue);border:1px solid #bcd4ef;padding:0 17px}
.btn-secondary:hover{background:var(--blue-50);border-color:var(--blue)}
.container{width:min(1184px,calc(100% - 48px));margin:auto}
.page-hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#f8fbff 0%,#eaf4ff 58%,#f9fcff 100%);border-bottom:1px solid #e0ebf6}
.page-hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(31,95,186,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(31,95,186,.05) 1px,transparent 1px);background-size:32px 32px;mask-image:linear-gradient(90deg,#000,transparent 84%)}
.hero-inner{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 350px;gap:58px;align-items:center;padding:52px 0 58px}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;color:#607187;font-size:13px;font-weight:700}
.breadcrumb span{color:#9badc0}
.eyebrow{display:flex;align-items:center;gap:9px;margin-top:22px;color:var(--blue);font-size:13px;font-weight:850;letter-spacing:.1em}
.eyebrow:before{content:"";width:26px;height:2px;background:var(--cyan)}
h1{max-width:760px;margin:12px 0 15px;font-size:clamp(34px,4.3vw,54px);line-height:1.16;letter-spacing:-1.8px}
.hero-copy{max-width:690px;margin:0;color:#536a84;font-size:16px;line-height:1.9}
.anchor-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px}
.anchor-chip{display:inline-flex;align-items:center;min-height:38px;padding:0 14px;border:1px solid #cfe0f1;border-radius:999px;background:#fff;color:#49637f;font-size:13px;font-weight:800;transition:.2s ease}
.anchor-chip:hover{border-color:var(--blue);background:var(--blue-50);color:var(--blue);transform:translateY(-1px)}
.index-card{position:relative;padding:25px;border:1px solid #d3e3f3;border-radius:22px;background:#fff;box-shadow:var(--shadow-lg);overflow:hidden}
.index-card:after{content:"";position:absolute;right:-48px;bottom:-50px;width:145px;height:145px;border:25px solid #e7f2ff;border-radius:50%}
.index-card h2{position:relative;margin:0 0 16px;font-size:17px}
.index-item{position:relative;z-index:1;display:grid;grid-template-columns:31px 1fr;gap:11px;align-items:start;padding:13px 0;border-top:1px solid #e7eef6}
.index-no{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;background:var(--blue-100);color:var(--blue);font-size:12px;font-weight:850}
.index-item strong{display:block;font-size:14px;line-height:1.45}
.index-item small{display:block;margin-top:2px;color:var(--muted);font-size:12px;line-height:1.5}
main{padding:76px 0 0}
.content-layout{display:grid;grid-template-columns:270px minmax(0,1fr);gap:42px;align-items:start}
.side-index{position:sticky;top:108px;padding:21px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 8px 24px rgba(26,67,113,.05)}
.side-index h2{margin:0 0 12px;font-size:15px}
.side-index p{margin:0 0 15px;color:var(--muted);font-size:13px;line-height:1.7}
.side-index nav{display:grid;gap:5px}
.side-index a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 11px;border-radius:10px;color:#526980;font-size:14px;font-weight:750;transition:.2s ease}
.side-index a:hover{background:var(--blue-50);color:var(--blue)}
.side-index a b{font-size:11px;color:#8ca1b7}
.read-note{margin-top:18px;padding:14px;border-top:1px solid var(--line);color:#607187;font-size:12px;line-height:1.75}
.read-note strong{color:var(--cyan)}
.group{position:relative;padding:0 0 43px 32px}
.group:before{content:"";position:absolute;left:7px;top:14px;bottom:-4px;width:1px;background:#cfe0ef}
.group:last-child:before{bottom:40px}
.group-dot{position:absolute;left:0;top:7px;width:15px;height:15px;border:4px solid #dbeeff;border-radius:50%;background:var(--blue)}
.group-head{margin-bottom:17px;padding:20px 22px;border:1px solid #d9e8f5;border-radius:18px;background:#f4f9ff}
.group-no{color:var(--blue);font-size:12px;font-weight:850;letter-spacing:.12em}
.group h2{margin:4px 0 5px;font-size:25px;line-height:1.35}
.group-head p{margin:0;color:#607187;font-size:14px}
.entry-list{display:grid;gap:12px}
.entry-card{display:grid;grid-template-columns:104px minmax(0,1fr) 30px;gap:18px;align-items:center;padding:15px 17px;border:1px solid var(--line);border-radius:17px;background:#fff;box-shadow:0 5px 16px rgba(26,67,113,.035);transition:.22s ease}
.entry-card:hover{border-color:#a9c9ec;box-shadow:var(--shadow);transform:translateX(3px)}
.thumb{position:relative;min-height:78px;border-radius:12px;background:linear-gradient(145deg,#e3f0ff,#f7fbff);overflow:hidden}
.thumb:before,.thumb:after{content:"";position:absolute;border-radius:50%}
.thumb:before{width:62px;height:62px;right:-15px;bottom:-24px;border:13px solid #b8d9f8}
.thumb:after{width:22px;height:22px;left:16px;top:18px;background:#7dc8c5;box-shadow:30px 15px 0 #4c8dd3}
.entry-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:4px}
.tag{display:inline-flex;align-items:center;min-height:22px;padding:0 8px;border-radius:999px;background:var(--blue-100);color:var(--blue);font-size:11px;font-weight:850}
.tag.cyan{background:#e5f5f3;color:var(--cyan)}
.entry-card h3{margin:0;font-size:16px;line-height:1.45}
.entry-card p{margin:3px 0 0;color:#607187;font-size:13px;line-height:1.65}
.arrow{display:grid;place-items:center;width:29px;height:29px;border-radius:50%;color:var(--blue);font-size:19px;transition:.2s ease}
.entry-card:hover .arrow{background:var(--blue);color:#fff}
.related{margin-top:18px;padding:38px;border-radius:23px;background:#edf6ff;border:1px solid #d1e5f8}
.related-top{display:flex;align-items:end;justify-content:space-between;gap:22px;margin-bottom:20px}
.related h2{margin:5px 0 0;font-size:28px}
.related p{margin:0;color:#607187;font-size:14px}
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.related-card{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:19px;border:1px solid #d4e4f4;border-radius:16px;background:#fff;transition:.2s ease}
.related-card:hover{border-color:var(--blue);transform:translateY(-2px);box-shadow:var(--shadow)}
.related-card small{display:block;color:var(--blue);font-weight:800;font-size:12px}
.related-card strong{display:block;margin-top:3px;font-size:16px}
.related-card span{color:var(--blue);font-size:21px}
#feedback{padding:76px 0}
.feedback{display:grid;grid-template-columns:1.05fr .95fr;gap:35px;align-items:center;padding:38px;border:1px solid #d1e4f7;border-radius:24px;background:linear-gradient(135deg,#eaf4ff,#f8fcff)}
.feedback h2{margin:7px 0 10px;font-size:31px;line-height:1.3}
.feedback p{margin:0;color:#5b7189}
.feedback-list{display:grid;gap:8px;margin:19px 0 0;padding:0;list-style:none;color:#516980;font-size:14px}
.feedback-list li:before{content:"✓";margin-right:9px;color:var(--cyan);font-weight:900}
.feedback-box{padding:22px;border-radius:18px;background:#fff;box-shadow:var(--shadow)}
.feedback-box p{margin-bottom:14px;font-size:14px}
footer{padding:52px 0 20px;border-top:1px solid var(--line);background:#f8fbff}
.footer-grid{display:grid;grid-template-columns:1.55fr .8fr .8fr;gap:50px}
.footer-brand{margin-bottom:13px}
.footer-grid p{max-width:430px;margin:0;color:#607187;font-size:14px;line-height:1.8}
.footer-title{margin:0 0 12px;font-size:14px}
.footer-links{display:grid;gap:8px}
.footer-links a{color:#607187;font-size:14px;transition:.2s ease}
.footer-links a:hover{color:var(--blue);transform:translateX(2px)}
.footer-bottom{display:flex;justify-content:space-between;gap:18px;margin-top:38px;padding-top:18px;border-top:1px solid var(--line);color:#718298;font-size:12px}
@media(max-width:1024px){
 .header-inner{gap:14px;padding:0 22px}.tabs a{padding:0 11px}.hero-inner{grid-template-columns:1fr 310px;gap:30px}
 .content-layout{grid-template-columns:220px minmax(0,1fr);gap:26px}.entry-card{grid-template-columns:88px minmax(0,1fr) 28px}
}
@media(max-width:768px){
 .header-inner{min-height:auto;padding:12px 16px;flex-wrap:wrap;gap:10px}.brand{font-size:16px}.header-cta{margin-left:auto;min-height:40px;padding:0 12px;font-size:13px}
 .tabs{order:3;width:calc(100% + 32px);margin:0 -16px -12px;padding:8px 16px;overflow-x:auto;border-radius:0;background:#f7fbff;scrollbar-width:none}.tabs::-webkit-scrollbar{display:none}
 .tabs a{min-height:36px}.container{width:min(100% - 32px,1184px)}.hero-inner{grid-template-columns:1fr;gap:25px;padding:37px 0 43px}.index-card{max-width:520px}
 main{padding-top:56px}.content-layout{grid-template-columns:1fr}.side-index{position:relative;top:auto;display:flex;align-items:center;gap:15px;padding:14px;overflow:hidden}.side-index h2,.side-index p,.read-note{display:none}.side-index nav{display:flex;gap:7px;overflow-x:auto;white-space:nowrap;scrollbar-width:none}.side-index nav::-webkit-scrollbar{display:none}.side-index a{padding:8px 10px;background:#f5f9fe}
 .group{padding-left:24px}.related{padding:26px}.feedback{grid-template-columns:1fr;padding:27px}.footer-grid{grid-template-columns:1.3fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:1/-1}
}
@media(max-width:520px){
 h1{font-size:33px}.hero-copy{font-size:15px}.anchor-row{gap:7px}.anchor-chip{font-size:12px;padding:0 11px}
 .group{padding-left:20px;padding-bottom:32px}.group h2{font-size:22px}.group-head{padding:17px}.entry-card{grid-template-columns:70px minmax(0,1fr);gap:12px;padding:12px}.entry-card .arrow{display:none}.thumb{min-height:70px}.entry-card h3{font-size:15px}.entry-card p{font-size:12px}
 .related-top,.footer-bottom{display:block}.related h2{font-size:24px}.related-grid{grid-template-columns:1fr}.feedback{padding:22px}.feedback h2{font-size:27px}.footer-grid{grid-template-columns:1fr;gap:26px}.footer-grid>div:first-child{grid-column:auto}.footer-bottom span{display:block;margin-bottom:6px}
}

/* roulang page: category2 */
:root{
 --ink:#13233A;--blue:#1F5FBA;--blue-dark:#164A94;--blue-50:#F6FAFF;
 --blue-100:#EAF3FF;--cyan:#148B8B;--line:#DCE7F3;--muted:#607187;
 --surface:#fff;--warning:#C56A28;--radius:20px;--radius-sm:14px;
 --shadow:0 12px 32px rgba(26,67,113,.08);--shadow-lg:0 18px 44px rgba(26,67,113,.14);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--surface);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.75}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid rgba(31,95,186,.34);outline-offset:3px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}
.header-inner{max-width:1240px;min-height:80px;margin:auto;padding:0 28px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;min-width:max-content;font-weight:800;font-size:18px;color:var(--ink);letter-spacing:-.4px}
.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--blue);display:grid;grid-template-columns:repeat(2,1fr);gap:4px;padding:6px;box-shadow:0 6px 14px rgba(31,95,186,.22)}
.brand-mark i{display:block;background:#fff;border-radius:2px}
.brand-mark i:last-child{background:#8ed7d7}
.tabs{display:flex;align-items:center;gap:4px;padding:4px;background:#f0f6fd;border:1px solid #e1edf9;border-radius:999px}
.tabs a{display:inline-flex;min-height:38px;align-items:center;padding:0 15px;border-radius:999px;color:#52667f;font-size:14px;font-weight:700;white-space:nowrap;transition:.2s ease}
.tabs a:hover{background:#dfeeff;color:var(--blue)}
.tabs a.active{background:var(--blue);color:#fff;box-shadow:0 5px 12px rgba(31,95,186,.22)}
.header-cta,.btn-primary,.btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;border-radius:13px;font-weight:800;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease}
.header-cta{margin-left:auto}
.header-cta,.btn-primary{background:var(--blue);color:#fff;border:1px solid var(--blue);padding:0 17px;box-shadow:0 7px 16px rgba(31,95,186,.18)}
.header-cta:hover,.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 11px 23px rgba(31,95,186,.24)}
.header-cta:active,.btn-primary:active{transform:translateY(0)}
.btn-secondary{background:#fff;color:var(--blue);border:1px solid #bcd4ef;padding:0 17px}
.btn-secondary:hover{background:var(--blue-50);border-color:var(--blue);transform:translateY(-1px)}
.container{width:min(1184px,calc(100% - 48px));margin:auto}
main{overflow:hidden}
.topic-hero{position:relative;padding:58px 0 48px;background:linear-gradient(135deg,#f7fbff 0%,#ecf5ff 55%,#f9fcff 100%);border-bottom:1px solid #e2edf8}
.topic-hero:before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(31,95,186,.10) 1px,transparent 1px),linear-gradient(90deg,rgba(31,95,186,.035) 1px,transparent 1px);background-size:18px 18px,38px 38px;mask-image:linear-gradient(90deg,#000 0%,#000 55%,transparent 100%)}
.hero-wrap{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 355px;gap:54px;align-items:end}
.breadcrumb{display:flex;gap:8px;align-items:center;margin-bottom:16px;color:#61758d;font-size:13px}
.breadcrumb span{color:#9badbe}
.eyebrow{display:flex;align-items:center;gap:9px;color:var(--blue);font-size:13px;font-weight:850;letter-spacing:.08em}
.eyebrow:before{content:"";width:25px;height:2px;background:var(--cyan)}
h1{max-width:760px;margin:13px 0 15px;font-size:clamp(34px,4.2vw,52px);letter-spacing:-1.7px;line-height:1.17}
.hero-desc{max-width:720px;margin:0;color:#536a83;font-size:17px;line-height:1.9}
.filter-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:25px}
.filter-chip{display:inline-flex;align-items:center;min-height:36px;padding:0 13px;border:1px solid #cbdff3;border-radius:999px;background:#fff;color:#4b647e;font-size:13px;font-weight:750;transition:.2s ease}
.filter-chip:hover,.filter-chip.active{border-color:var(--blue);background:var(--blue);color:#fff}
.filter-chip:active{transform:scale(.97)}
.hero-side{padding:21px;border:1px solid #d7e7f6;border-radius:20px;background:rgba(255,255,255,.9);box-shadow:var(--shadow)}
.side-caption{display:flex;align-items:center;justify-content:space-between;padding-bottom:13px;border-bottom:1px solid var(--line);font-size:13px;font-weight:850}
.side-status{display:inline-flex;align-items:center;gap:6px;color:var(--cyan);font-size:12px}
.side-status:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan)}
.sort-list{display:grid;gap:8px;margin-top:15px}
.sort-option{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;border-radius:11px;background:var(--blue-50);font-size:13px;color:#526980}
.sort-option b{color:var(--blue);font-size:12px}
section{padding:88px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:30px}
.section-kicker{color:var(--blue);font-size:13px;font-weight:850;letter-spacing:.1em}
.section-title{margin:6px 0 0;font-size:clamp(28px,3.3vw,38px);line-height:1.28;letter-spacing:-1px}
.section-copy{max-width:475px;margin:0;color:var(--muted);font-size:15px}
.topic-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:18px}
.topic-card{position:relative;display:flex;flex-direction:column;min-height:286px;padding:24px;border:1px solid var(--line);border-radius:21px;background:#fff;box-shadow:0 6px 18px rgba(26,67,113,.045);overflow:hidden;transition:.22s ease}
.topic-card:hover{transform:translateY(-4px);border-color:#a7c8eb;box-shadow:var(--shadow)}
.topic-card.featured{grid-column:span 7;min-height:360px;padding:31px;background:#eaf4ff}
.topic-card.small-a{grid-column:span 5}
.topic-card.small-b{grid-column:span 4}
.topic-card.small-c{grid-column:span 4}
.topic-card.small-d{grid-column:span 4}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:15px}
.card-no{color:var(--blue);font-size:13px;font-weight:850;letter-spacing:.1em}
.card-badge{display:inline-flex;align-items:center;min-height:27px;padding:0 10px;border-radius:999px;background:#fff;color:var(--cyan);font-size:12px;font-weight:800;border:1px solid #d6e9ec}
.topic-card h2,.topic-card h3{margin:20px 0 9px;font-size:23px;line-height:1.35;letter-spacing:-.5px}
.topic-card:not(.featured) h3{font-size:19px}
.topic-card p{max-width:520px;margin:0;color:#607187;font-size:14px;line-height:1.78}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:20px}
.read-note{color:#607187;font-size:12px}
.card-link{display:inline-flex;align-items:center;gap:6px;color:var(--blue);font-weight:850;font-size:14px}
.card-link span{font-size:19px;line-height:1;transition:.2s}
.topic-card:hover .card-link span{transform:translateX(4px)}
.abstract-map{position:absolute;right:18px;bottom:-3px;width:255px;height:170px;opacity:.72;pointer-events:none}
.abstract-map:before,.abstract-map:after{content:"";position:absolute;border:2px solid #b4d2f1;border-radius:50%}
.abstract-map:before{right:18px;bottom:13px;width:134px;height:134px}
.abstract-map:after{right:69px;bottom:62px;width:55px;height:55px;border-color:#78bbb9}
.map-line{position:absolute;right:38px;bottom:57px;width:170px;height:72px;border-top:2px dashed #76a9df;transform:rotate(-20deg)}
.map-node{position:absolute;width:12px;height:12px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 7px rgba(31,95,186,.12)}
.map-node.one{right:198px;bottom:70px}.map-node.two{right:106px;bottom:95px;background:var(--cyan)}.map-node.three{right:46px;bottom:42px}
.notice-band{margin:38px 0 0;padding:17px 22px;display:flex;gap:15px;align-items:center;border:1px solid #cde2f7;border-radius:16px;background:#f3f9ff;color:#506982}
.notice-icon{display:grid;place-items:center;flex:0 0 34px;width:34px;height:34px;border-radius:10px;background:var(--blue);color:#fff;font-weight:900}
.notice-band strong{color:var(--ink)}
.path-section{background:var(--blue-50);border-top:1px solid #e7f0f9;border-bottom:1px solid #e7f0f9}
.path-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:30px;align-items:start}
.path-panel{padding:30px;border:1px solid #d8e7f6;border-radius:22px;background:#fff;box-shadow:0 5px 16px rgba(27,68,112,.04)}
.path-panel h2{margin:9px 0 10px;font-size:28px;line-height:1.35}
.path-panel p{margin:0;color:var(--muted);font-size:15px}
.step-list{display:grid;gap:12px;margin-top:22px}
.step{display:grid;grid-template-columns:38px 1fr;gap:12px;align-items:center;padding:12px;border-radius:14px;background:#f7fbff}
.step-num{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:var(--blue-100);color:var(--blue);font-size:13px;font-weight:900}
.step strong{display:block;font-size:14px}
.step span{display:block;color:#65778a;font-size:13px;line-height:1.55}
.choice-list{display:grid;gap:13px}
.choice{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 21px;border:1px solid var(--line);border-radius:17px;background:#fff;transition:.2s ease}
.choice:hover{border-color:#a8c9eb;box-shadow:var(--shadow);transform:translateX(3px)}
.choice-label{display:flex;gap:13px;align-items:flex-start}
.choice-dot{width:11px;height:11px;margin-top:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 6px #def1f0}
.choice h3{margin:0 0 3px;font-size:17px}
.choice p{margin:0;color:#607187;font-size:13px}
.explore{padding:0 0 96px}
.explore-box{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:34px 38px;border-radius:24px;background:linear-gradient(120deg,#eef6ff,#f9fcff);border:1px solid #d6e6f7}
.explore-box h2{margin:5px 0 0;font-size:28px;line-height:1.35}
.explore-box p{margin:8px 0 0;color:var(--muted);font-size:15px}
.explore-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:10px}
footer{padding:58px 0 22px;background:#13233A;color:#d7e3f1}
.footer-grid{display:grid;grid-template-columns:1.55fr .8fr .8fr;gap:56px;padding-bottom:42px}
.footer-brand{color:#fff}
footer p{max-width:420px;margin:16px 0 0;color:#afc0d3;font-size:14px;line-height:1.8}
.footer-title{margin:3px 0 15px;color:#fff;font-size:15px}
.footer-links{display:grid;gap:9px}
.footer-links a{color:#b9c9da;font-size:14px;transition:.2s}
.footer-links a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{display:flex;justify-content:space-between;gap:18px;padding-top:20px;border-top:1px solid rgba(220,231,243,.18);color:#9eb2c7;font-size:13px}
@media(max-width:1024px){
 .header-inner{gap:14px;padding:0 22px}.tabs a{padding:0 11px}.header-cta{padding:0 13px;font-size:14px}
 .hero-wrap{grid-template-columns:1fr 300px;gap:28px}.topic-card.featured{grid-column:span 7}.topic-card.small-a{grid-column:span 5}
}
@media(max-width:768px){
 .site-header{position:relative}.header-inner{min-height:auto;padding:14px 18px 10px;flex-wrap:wrap;gap:10px}.brand{font-size:16px}.header-cta{margin-left:auto;min-height:40px;padding:0 12px;font-size:13px}
 .tabs{order:3;width:calc(100% + 36px);margin:0 -18px -10px;padding:8px 18px;border-radius:0;border-width:1px 0 0;overflow-x:auto;scrollbar-width:none}.tabs::-webkit-scrollbar{display:none}.tabs a{min-height:36px}
 .container{width:min(100% - 36px,1184px)}.topic-hero{padding:42px 0}.hero-wrap{grid-template-columns:1fr;gap:22px}.hero-side{max-width:none}
 h1{font-size:36px}.hero-desc{font-size:16px}.section-head{display:block;margin-bottom:24px}.section-copy{margin-top:12px}
 section{padding:64px 0}.topic-grid{gap:14px}.topic-card.featured,.topic-card.small-a,.topic-card.small-b,.topic-card.small-c,.topic-card.small-d{grid-column:span 6}.topic-card.featured{min-height:330px}
 .path-grid{grid-template-columns:1fr}.explore{padding-bottom:64px}.explore-box{align-items:flex-start;flex-direction:column;padding:28px}.explore-actions{justify-content:flex-start}
 .footer-grid{grid-template-columns:1.4fr 1fr;gap:34px}.footer-grid>div:first-child{grid-column:span 2}.footer-bottom{flex-direction:column;gap:5px}
}
@media(max-width:520px){
 body{font-size:15px}.brand-mark{width:28px;height:28px}.header-cta{font-size:12px}.breadcrumb{font-size:12px}.topic-hero{padding:34px 0}
 h1{font-size:31px;letter-spacing:-1px}.filter-row{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}.filter-row::-webkit-scrollbar{display:none}.filter-chip{white-space:nowrap}
 .hero-side{padding:17px}.topic-card.featured,.topic-card.small-a,.topic-card.small-b,.topic-card.small-c,.topic-card.small-d{grid-column:span 12;min-height:250px}.topic-card.featured{min-height:300px;padding:24px}.topic-card{padding:21px}.topic-card h2{font-size:21px}
 .abstract-map{transform:scale(.8);transform-origin:right bottom}.notice-band{align-items:flex-start;padding:16px}.notice-band div{font-size:13px}
 .path-panel{padding:23px}.choice{padding:17px}.choice .card-link{font-size:0}.choice .card-link span{font-size:21px}.explore-box{padding:24px}.explore-box h2{font-size:24px}
 .footer-grid{grid-template-columns:1fr;gap:27px}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{font-size:12px}
}