/* roulang page: index */
:root{
      --ink:#1e2b35;
      --muted:#60707c;
      --soft:#84919b;
      --primary:#2b5f85;
      --primary-dark:#204d6d;
      --primary-pale:#eaf3f8;
      --accent:#5a9b90;
      --accent-pale:#edf7f4;
      --warm:#d78a62;
      --warm-pale:#fdf1eb;
      --bg:#f7fafc;
      --surface:#ffffff;
      --section:#eef5fa;
      --line:#dce6ec;
      --radius:18px;
      --radius-sm:12px;
      --shadow:0 12px 32px rgba(35,73,98,.08);
      --shadow-hover:0 18px 38px rgba(35,73,98,.15);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:140px}
    body{
      margin:0;padding:0 0 104px;background:var(--bg);color:var(--ink);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
      font-size:16px;line-height:1.8;letter-spacing:.01em;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible{
      outline:3px solid rgba(43,95,133,.28);outline-offset:3px;
    }
    .site-header{
      position:sticky;top:0;z-index:1050;background:rgba(247,250,252,.96);
      border-bottom:1px solid var(--line);box-shadow:0 4px 18px rgba(42,78,103,.04);
      backdrop-filter:blur(10px);
    }
    .navbar{min-height:72px;padding:10px 0}
    .brand{
      max-width:286px;color:var(--primary);font-size:17px;font-weight:800;line-height:1.25;
      display:flex;align-items:center;gap:10px;
    }
    .brand-mark{
      flex:0 0 34px;width:34px;height:34px;border-radius:11px;background:var(--primary);
      position:relative;box-shadow:0 7px 15px rgba(43,95,133,.18);
    }
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;background:#fff;border-radius:4px}
    .brand-mark:before{width:14px;height:4px;top:10px;left:10px}
    .brand-mark:after{width:9px;height:4px;top:18px;left:10px;opacity:.72}
    .nav-link{
      padding:9px 11px!important;color:var(--muted)!important;font-size:14px;font-weight:650;
      border-radius:9px;transition:.2s ease;
    }
    .nav-link:hover,.nav-link.active{background:var(--primary-pale);color:var(--primary)!important}
    .nav-cta,.btn-main,.btn-light{
      min-height:46px;padding:10px 18px;border-radius:12px;font-weight:750;font-size:14px;
      display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:all .2s ease;
    }
    .nav-cta,.btn-main{background:var(--primary);color:#fff;border:1px solid var(--primary);box-shadow:0 7px 16px rgba(43,95,133,.13)}
    .nav-cta:hover,.btn-main:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-1px)}
    .btn-light{background:#fff;color:var(--primary);border:1px solid #b8cede}
    .btn-light:hover{background:var(--primary-pale);color:var(--primary);border-color:var(--primary)}
    .navbar-toggler{border:1px solid var(--line);border-radius:10px;padding:8px 10px}
    .navbar-toggler:focus{box-shadow:0 0 0 3px rgba(43,95,133,.15)}
    .progress-nav{
      border-top:1px solid rgba(220,230,236,.85);background:#fff;overflow-x:auto;white-space:nowrap;
      scrollbar-width:none;
    }
    .progress-nav::-webkit-scrollbar{display:none}
    .progress-wrap{display:flex;align-items:center;min-width:max-content;height:48px}
    .step-link{display:inline-flex;align-items:center;gap:8px;color:var(--soft);font-size:13px;font-weight:700;padding:0 18px;position:relative}
    .step-link:not(:last-child):after{content:"";width:26px;height:1px;background:#cbdbe5;margin-left:8px}
    .step-no{width:21px;height:21px;border-radius:50%;background:#eaf0f4;color:var(--soft);display:inline-flex;align-items:center;justify-content:center;font-size:11px}
    .step-link.active,.step-link:hover{color:var(--primary)}
    .step-link.active .step-no{background:var(--primary);color:#fff}
    .hero{padding:68px 0 48px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;width:470px;height:470px;border-radius:50%;background:#edf6fa;right:-180px;top:-240px;z-index:-1}
    .hero-frame{
      min-height:485px;background:var(--surface);border:1px solid var(--line);border-radius:26px;
      box-shadow:var(--shadow);overflow:hidden;position:relative;
    }
    .hero-content{padding:54px 18px 42px 54px}
    .eyebrow,.tiny-label{
      display:inline-flex;align-items:center;gap:7px;border-radius:999px;padding:5px 10px;
      font-size:12px;font-weight:750;letter-spacing:.04em;
    }
    .eyebrow{background:var(--accent-pale);color:#39776d}
    .eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent)}
    h1{font-size:clamp(34px,4vw,48px);line-height:1.25;letter-spacing:-.035em;font-weight:800;margin:20px 0 17px;color:var(--ink)}
    .hero-copy{max-width:630px;color:var(--muted);font-size:16px;line-height:1.9;margin-bottom:26px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .compliance-note{display:flex;align-items:flex-start;gap:8px;max-width:620px;color:var(--soft);font-size:13px;line-height:1.7;margin:22px 0 0}
    .compliance-note svg{flex:0 0 17px;margin-top:3px;color:var(--accent)}
    .hero-visual{height:100%;min-height:485px;padding:26px;background:#e8f1f6;position:relative}
    .cover-stage{
      height:100%;min-height:430px;border-radius:18px;overflow:hidden;position:relative;
      background:linear-gradient(145deg,#355e79 0%,#577f91 48%,#b2c9d4 100%);
    }
    .cover-stage:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 70% 28%,rgba(255,255,255,.38),transparent 23%),linear-gradient(90deg,rgba(21,43,57,.4),transparent 55%)}
    .cover-stage:after{content:"";position:absolute;bottom:-42px;right:45px;width:230px;height:310px;border-radius:120px 120px 24px 24px;background:rgba(24,47,60,.52);box-shadow:-134px 85px 0 -38px rgba(34,56,68,.35)}
    .visual-head{position:absolute;top:25px;left:25px;right:25px;z-index:2;display:flex;justify-content:space-between;align-items:center}
    .tiny-label{background:rgba(255,255,255,.9);color:var(--primary)}
    .status-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block}
    .index-card{
      position:absolute;left:25px;right:25px;bottom:25px;z-index:3;background:rgba(255,255,255,.94);
      padding:17px;border-radius:15px;box-shadow:0 12px 30px rgba(22,49,64,.2)
    }
    .index-card strong{font-size:16px;display:block;margin-bottom:6px}
    .index-meta{display:flex;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:12px}
    .pill{display:inline-flex;align-items:center;padding:3px 8px;border-radius:7px;background:var(--primary-pale);color:var(--primary);font-weight:700}
    .hero-strip{padding:16px 0 0}
    .strip-inner{background:#f0f7f8;border-left:4px solid var(--accent);border-radius:0 12px 12px 0;padding:12px 16px;color:#527067;font-size:14px}
    .section{padding:94px 0;scroll-margin-top:130px}
    .section-tint{background:var(--section)}
    .section-kicker{color:var(--primary);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;margin-bottom:8px}
    .section-title{font-size:clamp(27px,3vw,34px);font-weight:800;letter-spacing:-.025em;line-height:1.35;margin:0 0 12px;padding-left:15px;border-left:4px solid var(--primary)}
    .section-desc{max-width:720px;color:var(--muted);margin:0;line-height:1.85}
    .note-sequence{margin-top:42px;display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:var(--shadow)}
    .note-item{padding:30px 28px;min-height:228px;border-right:1px solid var(--line);position:relative}
    .note-item:last-child{border-right:0;background:var(--warm-pale)}
    .note-item:first-child{background:var(--primary-pale)}
    .note-num{font-size:42px;color:#a5c1d3;font-weight:800;line-height:1;margin-bottom:20px}
    .note-item:last-child .note-num{color:#e9b59c}
    .note-item h3{font-size:20px;font-weight:800;margin:0 0 9px}
    .note-item p{font-size:14px;color:var(--muted);line-height:1.75;margin:0}
    .scene-layout{display:grid;grid-template-columns:260px 1fr;gap:28px;margin-top:42px}
    .scene-tabs{display:flex;flex-direction:column;gap:10px}
    .scene-tab{width:100%;border:1px solid transparent;background:transparent;border-radius:13px;padding:15px;text-align:left;color:var(--muted);transition:.2s ease}
    .scene-tab strong{display:block;color:var(--ink);font-size:15px;margin-bottom:3px}
    .scene-tab span{font-size:12px}
    .scene-tab.active,.scene-tab:hover{background:#fff;border-color:#c8dce8;box-shadow:0 8px 20px rgba(35,73,98,.07);color:var(--primary)}
    .scene-tab.active strong{color:var(--primary)}
    .demo-panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:var(--shadow)}
    .demo-top{display:flex;justify-content:space-between;align-items:center;gap:15px;padding-bottom:18px;border-bottom:1px solid var(--line)}
    .demo-top strong{font-size:18px}
    .demo-filter{display:flex;gap:7px;flex-wrap:wrap;margin:19px 0}
    .filter-tag{border:1px solid var(--line);background:#f7fafc;border-radius:8px;padding:5px 9px;color:var(--muted);font-size:12px}
    .filter-tag.selected{background:var(--primary-pale);border-color:#b8d0df;color:var(--primary);font-weight:700}
    .demo-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .demo-card{border:1px solid var(--line);border-radius:13px;overflow:hidden;background:#fff}
    .demo-image{height:110px;background:linear-gradient(140deg,#9eb6c3,#dfeaf0 58%,#668b9f);position:relative;overflow:hidden}
    .demo-image:after{content:"";position:absolute;width:62px;height:86px;border-radius:38px 38px 8px 8px;background:rgba(37,65,79,.4);right:22px;bottom:-13px}
    .demo-body{padding:11px}
    .demo-body b{font-size:13px;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .demo-body small{font-size:11px;color:var(--soft)}
    .scene-bottom{margin-top:28px}
    .highlight-link{color:var(--primary);font-size:14px;font-weight:800;border-bottom:1px solid #98bdcf;padding-bottom:2px}
    .highlight-link:hover{color:var(--primary-dark);border-color:var(--primary-dark)}
    .trust-row{margin-top:39px;border:1px solid #cce1df;background:var(--accent-pale);border-radius:14px;padding:14px 18px;color:#4d706a;font-size:14px;display:flex;align-items:center;gap:10px}
    .feedback-grid{margin-top:42px;display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:16px;align-items:start}
    .feedback-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 8px 24px rgba(35,73,98,.05)}
    .feedback-card:nth-child(2){margin-top:27px}.feedback-card:nth-child(4){margin-top:-15px}
    .quote-mark{color:#9cc4d8;font-size:35px;line-height:.8;font-weight:800}
    .feedback-card p{font-size:14px;color:#4d5d68;margin:10px 0 15px;line-height:1.8}
    .feedback-meta{display:flex;justify-content:space-between;gap:8px;color:var(--soft);font-size:12px}
    .info-section{padding:84px 0;background:#fff}
    .news-shell{margin-top:35px;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff;box-shadow:var(--shadow)}
    .news-item{padding:18px 22px;display:grid;grid-template-columns:106px 1fr auto;gap:18px;align-items:center;border-bottom:1px solid var(--line);transition:.2s ease}
    .news-item:last-child{border-bottom:0}.news-item:hover{background:#f7fbfd}
    .news-date{font-size:12px;color:var(--soft)}.news-title{font-weight:750;font-size:15px}.news-copy{font-size:13px;color:var(--muted);margin-top:3px}
    .news-state{font-size:12px;color:#39776d;background:var(--accent-pale);padding:4px 8px;border-radius:7px;font-weight:700}
    .safety-box{height:100%;border:1px solid #cddfe9;background:var(--primary-pale);border-radius:18px;padding:27px}
    .safety-icon{width:42px;height:42px;border-radius:13px;background:var(--primary);color:#fff;display:grid;place-items:center;margin-bottom:15px}
    .safety-box h3{font-size:20px;font-weight:800}.safety-box p{color:var(--muted);font-size:14px}
    .safety-list{list-style:none;padding:0;margin:16px 0 0}.safety-list li{padding:9px 0;border-top:1px solid rgba(117,154,176,.25);font-size:14px;color:#466071}.safety-list li:before{content:"✓";color:var(--accent);font-weight:800;margin-right:9px}
    .faq-wrap{margin-top:35px;max-width:860px}
    .accordion-item{border:1px solid var(--line)!important;border-radius:13px!important;overflow:hidden;margin-bottom:11px;background:#fff}
    .accordion-button{font-weight:750;color:var(--ink);padding:17px 20px;background:#fff;box-shadow:none!important}
    .accordion-button:not(.collapsed){background:var(--primary-pale);color:var(--primary)}
    .accordion-button:after{background-size:15px}
    .accordion-body{color:var(--muted);font-size:14px;line-height:1.85;padding:0 20px 19px}
    .cta-section{padding:72px 0}
    .cta-box{background:var(--primary);border-radius:22px;padding:38px 43px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:25px;box-shadow:0 16px 35px rgba(32,77,109,.2)}
    .cta-box h2{font-size:27px;font-weight:800;margin:0 0 8px}.cta-box p{margin:0;color:#d8e8f0;font-size:14px;max-width:640px}
    .cta-box .btn-light{border-color:#fff}
    footer{background:#eaf1f5;border-top:1px solid var(--line);padding:53px 0 34px}
    .footer-brand{font-weight:800;color:var(--primary);font-size:18px;margin-bottom:10px}
    .footer-copy{font-size:13px;color:var(--muted);max-width:455px}
    .footer-title{font-weight:800;font-size:14px;margin-bottom:12px}
    .footer-links{list-style:none;padding:0;margin:0}.footer-links li{margin:8px 0}.footer-links a{font-size:13px;color:var(--muted)}.footer-links a:hover{color:var(--primary)}
    .footer-bottom{border-top:1px solid #d4e0e7;margin-top:30px;padding-top:18px;color:var(--soft);font-size:12px;display:flex;justify-content:space-between;gap:15px}
    .fixed-bar{position:fixed;left:24px;right:24px;bottom:18px;z-index:1040;background:rgba(255,255,255,.97);border:1px solid #cddde6;border-radius:17px;box-shadow:0 12px 34px rgba(26,54,72,.18);padding:11px 14px 11px 19px;display:flex;align-items:center;justify-content:space-between;gap:16px}
    .fixed-info{display:flex;align-items:center;gap:11px;font-size:14px;font-weight:700}.fixed-badge{background:var(--warm-pale);color:#a65f3c;border-radius:7px;padding:3px 7px;font-size:12px}
    .close-bar{border:0;background:transparent;color:var(--soft);font-size:20px;line-height:1;padding:4px 7px}
    .offcanvas{background:var(--bg)}.offcanvas-header{border-bottom:1px solid var(--line)}.offcanvas-title{font-weight:800;color:var(--primary)}
    @media(max-width:991px){
      .hero-content{padding:44px 34px}.hero-visual{min-height:400px}.hero-frame{min-height:auto}.scene-layout{grid-template-columns:1fr}.scene-tabs{flex-direction:row;overflow-x:auto}.scene-tab{min-width:220px}.note-sequence{grid-template-columns:1fr}.note-item{border-right:0;border-bottom:1px solid var(--line);min-height:0}.note-item:last-child{border-bottom:0}.feedback-grid{grid-template-columns:1fr 1fr}.feedback-card:nth-child(2),.feedback-card:nth-child(4){margin-top:0}.cta-box{padding:32px}
    }
    @media(max-width:767px){
      body{padding-bottom:94px}.navbar{min-height:64px}.brand{font-size:14px;max-width:235px}.brand-mark{width:30px;height:30px;flex-basis:30px}.brand-mark:before{left:8px;top:9px}.brand-mark:after{left:8px;top:17px}
      .hero{padding:34px 0}.hero-content{padding:34px 25px}.hero-visual{padding:17px;min-height:345px}.cover-stage{min-height:310px}.hero-actions .btn-main,.hero-actions .btn-light{flex:1}
      .section,.info-section{padding:64px 0}.section-title{font-size:28px}.demo-list{grid-template-columns:1fr 1fr}.demo-card:last-child{display:none}.feedback-grid{grid-template-columns:1fr}.news-item{grid-template-columns:1fr;gap:4px;padding:17px}.news-state{justify-self:start}.cta-box{display:block;padding:29px 23px}.cta-box .btn-light{margin-top:20px;width:100%}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:5px}.fixed-bar{left:10px;right:10px;bottom:9px;padding:9px 10px 9px 13px;border-radius:14px}.fixed-info{font-size:12px;line-height:1.35}.fixed-info span:last-child{display:none}.fixed-bar .btn-main{min-height:42px;padding:8px 12px;font-size:13px}.close-bar{display:none}
    }
    @media(max-width:520px){
      h1{font-size:31px}.hero-copy{font-size:15px}.demo-list{grid-template-columns:1fr}.demo-card:last-child{display:block}.demo-image{height:125px}.progress-wrap{height:44px}.step-link{padding:0 11px;font-size:12px}.step-link:not(:last-child):after{width:12px;margin-left:4px}.footer-brand{font-size:16px}
    }
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* roulang page: category2 */
:root{
 --ink:#1e2b35;--muted:#60707c;--soft:#84919b;--primary:#2b5f85;
 --primary-dark:#204d6d;--primary-pale:#eaf3f8;--accent:#5a9b90;
 --accent-pale:#edf7f4;--warm:#d78a62;--warm-pale:#fdf1eb;
 --bg:#f7fafc;--surface:#fff;--section:#eef5fa;--line:#dce6ec;
 --radius:18px;--radius-sm:12px;--shadow:0 12px 32px rgba(35,73,98,.08);
 --shadow-hover:0 18px 38px rgba(35,73,98,.15)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:140px}
body{margin:0;padding:0 0 112px;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;font-size:16px;line-height:1.8;letter-spacing:.01em}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button,input{font:inherit}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(43,95,133,.28);outline-offset:3px}
.site-header{position:sticky;top:0;z-index:1050;background:rgba(247,250,252,.96);border-bottom:1px solid var(--line);box-shadow:0 4px 18px rgba(42,78,103,.04);backdrop-filter:blur(10px)}
.navbar{min-height:72px;padding:10px 0}.brand{max-width:286px;color:var(--primary);font-size:17px;font-weight:800;line-height:1.25;display:flex;align-items:center;gap:10px}
.brand-mark{flex:0 0 34px;width:34px;height:34px;border-radius:11px;background:var(--primary);position:relative;box-shadow:0 7px 15px rgba(43,95,133,.18)}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;background:#fff;border-radius:4px}.brand-mark:before{width:14px;height:4px;top:10px;left:10px}.brand-mark:after{width:9px;height:4px;top:18px;left:10px;opacity:.72}
.nav-link{padding:9px 11px!important;color:var(--muted)!important;font-size:14px;font-weight:650;border-radius:9px;transition:.2s ease}.nav-link:hover,.nav-link.active{background:var(--primary-pale);color:var(--primary)!important}
.nav-cta,.btn-main,.btn-light{min-height:46px;padding:10px 18px;border-radius:12px;font-weight:750;font-size:14px;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:all .2s ease}
.nav-cta,.btn-main{background:var(--primary);color:#fff;border:1px solid var(--primary);box-shadow:0 7px 16px rgba(43,95,133,.13)}.nav-cta:hover,.btn-main:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--primary);border:1px solid #b8cede}.btn-light:hover{background:var(--primary-pale);color:var(--primary);border-color:var(--primary)}
.navbar-toggler{border:1px solid var(--line);border-radius:10px;padding:8px 10px}.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(43,95,133,.15)}
.progress-nav{border-top:1px solid rgba(220,230,236,.85);background:#fff;overflow-x:auto;white-space:nowrap;scrollbar-width:none}.progress-nav::-webkit-scrollbar{display:none}
.progress-wrap{display:flex;gap:8px;min-width:max-content}.step-link{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;color:var(--soft);font-size:13px;font-weight:700;border-bottom:2px solid transparent;transition:.2s}.step-link:hover,.step-link.active{color:var(--primary);border-color:var(--accent);background:#f7fbfc}.step-no{font-size:11px;color:var(--primary);letter-spacing:.08em}
.page-hero{padding:62px 0 48px}.crumbs{font-size:13px;color:var(--soft);margin-bottom:18px}.crumbs a{color:var(--primary)}.hero-panel{background:var(--surface);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);padding:42px 48px;position:relative;overflow:hidden}.hero-panel:after{content:"";position:absolute;width:260px;height:260px;border-radius:50%;right:-70px;top:-100px;background:var(--primary-pale);z-index:0}.hero-panel>*{position:relative;z-index:1}
.eyebrow,.tiny-label{display:inline-flex;align-items:center;gap:7px;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:750;letter-spacing:.04em}.eyebrow{background:var(--accent-pale);color:#39776d}.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent)}
h1{font-size:clamp(34px,4.4vw,48px);line-height:1.25;letter-spacing:-.035em;font-weight:800;margin:16px 0 15px;max-width:760px}.hero-text{max-width:720px;color:var(--muted);line-height:1.9;margin:0 0 23px}.hero-tags,.tag-row{display:flex;flex-wrap:wrap;gap:8px}.pill,.filter-tag{display:inline-flex;align-items:center;padding:4px 9px;border-radius:8px;background:var(--primary-pale);color:var(--primary);font-size:12px;font-weight:700;border:1px solid transparent}.filter-tag{background:#f7fafc;border-color:var(--line);color:var(--muted)}
.section{padding:82px 0;scroll-margin-top:130px}.section-tint{background:var(--section)}.section-kicker{color:var(--primary);font-size:12px;font-weight:800;letter-spacing:.12em;margin-bottom:8px}.section-title{font-size:clamp(27px,3vw,34px);font-weight:800;line-height:1.35;margin:0 0 12px;padding-left:15px;border-left:4px solid var(--primary)}.section-desc{max-width:720px;color:var(--muted);margin:0;line-height:1.85}
.timeline{position:relative;margin-top:36px}.timeline:before{content:"";position:absolute;left:58px;top:18px;bottom:18px;width:1px;background:#bfd3df}.timeline-item{position:relative;display:grid;grid-template-columns:118px 1fr;gap:28px;padding:0 0 50px}.timeline-item:last-child{padding-bottom:0}.timeline-no{width:78px;height:78px;border-radius:18px;background:#fff;border:1px solid #bfd3df;color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:22px;box-shadow:0 7px 17px rgba(35,73,98,.06);position:relative;z-index:1}.timeline-meta{font-size:12px;color:var(--accent);font-weight:800;letter-spacing:.08em;margin:3px 0 5px}.timeline-title{font-size:23px;font-weight:800;margin:0 0 8px}.timeline-copy{color:var(--muted);margin:0 0 17px;max-width:690px}.cover-row{display:flex;gap:14px;overflow-x:auto;padding:4px 3px 12px;scrollbar-color:#b8cede transparent}.cover-card{flex:0 0 205px;background:#fff;border:1px solid var(--line);border-radius:15px;overflow:hidden;box-shadow:0 8px 22px rgba(35,73,98,.06);transition:.2s ease}.cover-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#abc8d8}.cover-art{height:116px;background:linear-gradient(135deg,#416d86,#9fb9c5);position:relative;overflow:hidden}.cover-art:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 70% 25%,rgba(255,255,255,.43),transparent 24%),linear-gradient(115deg,rgba(22,52,68,.48),transparent 62%)}.cover-art:after{content:"";position:absolute;width:90px;height:130px;right:25px;bottom:-45px;border-radius:55px 55px 12px 12px;background:rgba(32,55,67,.42)}.cover-body{padding:12px}.cover-body strong{font-size:14px;display:block;margin-bottom:5px}.cover-body small{color:var(--soft);font-size:12px}.update-dot{display:inline-flex;align-items:center;gap:5px;color:#39776d;font-size:11px;font-weight:700}.update-dot:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.filter-bar{display:flex;gap:9px;overflow-x:auto;padding:3px 0 21px;scrollbar-width:none}.filter-bar::-webkit-scrollbar{display:none}.filter-bar .filter-tag{white-space:nowrap;min-height:38px}.filter-tag.selected{background:var(--primary-pale);border-color:#b8d0df;color:var(--primary)}
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:32px}.info-card{padding:25px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.info-card:nth-child(2){background:var(--accent-pale)}.info-card:nth-child(3){background:var(--warm-pale)}.info-card h3{font-size:18px;margin:0 0 7px;font-weight:800}.info-card p{font-size:14px;color:var(--muted);margin:0}
.accordion{margin-top:28px}.accordion-item{border:1px solid var(--line)!important;border-radius:12px!important;margin-bottom:10px;overflow:hidden;background:#fff}.accordion-button{font-weight:750;color:var(--ink);background:#fff;padding:17px 20px;box-shadow:none!important}.accordion-button:not(.collapsed){color:var(--primary);background:var(--primary-pale)}.accordion-body{color:var(--muted);font-size:14px;padding:0 20px 19px;line-height:1.85}
.continue{padding:62px 0}.continue-card{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px 27px;box-shadow:var(--shadow);transition:.2s}.continue-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}.continue-card h3{font-size:18px;margin:0 0 3px}.continue-card p{font-size:13px;color:var(--muted);margin:0}
footer{background:#eaf2f6;border-top:1px solid var(--line);padding:58px 0 28px}.footer-brand{font-size:19px;font-weight:800;color:var(--primary);margin-bottom:9px}.footer-copy{max-width:530px;color:var(--muted);font-size:13px;line-height:1.8;margin:0}.footer-title{font-size:13px;font-weight:800;color:var(--ink);margin-bottom:12px}.footer-links{padding:0;margin:0;list-style:none}.footer-links li{margin-bottom:7px}.footer-links a{color:var(--muted);font-size:13px}.footer-links a:hover{color:var(--primary)}.footer-bottom{border-top:1px solid var(--line);margin-top:34px;padding-top:18px;display:flex;justify-content:space-between;gap:12px;color:var(--soft);font-size:12px}
.floating-cta{position:fixed;z-index:1040;left:24px;right:24px;bottom:20px;min-height:70px;padding:12px 20px;background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:17px;box-shadow:0 14px 35px rgba(35,73,98,.16);display:flex;align-items:center;justify-content:space-between;gap:20px}.floating-cta p{margin:0;color:var(--muted);font-size:14px}.floating-cta strong{color:var(--ink)}.close-float{border:0;background:transparent;color:var(--soft);font-size:20px;line-height:1;padding:5px}.close-float:hover{color:var(--primary)}
@media(max-width:991px){.hero-panel{padding:35px 30px}.timeline-item{grid-template-columns:92px 1fr;gap:20px}.timeline:before{left:45px}.timeline-no{width:64px;height:64px;font-size:18px}.info-grid{grid-template-columns:1fr}}
@media(max-width:767px){body{padding-bottom:92px}.navbar{min-height:64px}.brand{font-size:14px;max-width:240px}.brand-mark{width:30px;height:30px;flex-basis:30px}.page-hero{padding:38px 0 30px}.hero-panel{padding:28px 21px;border-radius:18px}h1{font-size:33px}.section{padding:62px 0}.timeline-item{grid-template-columns:1fr;gap:13px;padding-bottom:38px}.timeline:before{display:none}.timeline-no{width:54px;height:54px}.timeline-title{font-size:20px}.cover-card{flex-basis:190px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:5px}.floating-cta{left:12px;right:12px;bottom:10px;min-height:68px;padding:10px 12px;border-radius:14px}.floating-cta p{font-size:12px;line-height:1.45}.floating-cta .btn-main{min-height:44px;padding:8px 13px;font-size:13px}.close-float{display:none}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category1 */
:root{
 --ink:#1e2b35;
 --muted:#60707c;
 --soft:#84919b;
 --primary:#2b5f85;
 --primary-dark:#204d6d;
 --primary-pale:#eaf3f8;
 --accent:#5a9b90;
 --accent-pale:#edf7f4;
 --warm:#d78a62;
 --warm-pale:#fdf1eb;
 --bg:#f7fafc;
 --surface:#fff;
 --section:#eef5fa;
 --line:#dce6ec;
 --radius:18px;
 --radius-sm:12px;
 --shadow:0 12px 32px rgba(35,73,98,.08);
 --shadow-hover:0 18px 38px rgba(35,73,98,.15)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:142px}
body{margin:0;padding:0 0 104px;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;font-size:16px;line-height:1.8;letter-spacing:.01em}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(43,95,133,.28);outline-offset:3px}
.container{max-width:1220px}
.site-header{position:sticky;top:0;z-index:1050;background:rgba(247,250,252,.96);border-bottom:1px solid var(--line);box-shadow:0 4px 18px rgba(42,78,103,.04);backdrop-filter:blur(10px)}
.navbar{min-height:72px;padding:10px 0}
.brand{max-width:286px;color:var(--primary);font-size:17px;font-weight:800;line-height:1.25;display:flex;align-items:center;gap:10px}
.brand-mark{flex:0 0 34px;width:34px;height:34px;border-radius:11px;background:var(--primary);position:relative;box-shadow:0 7px 15px rgba(43,95,133,.18)}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;background:#fff;border-radius:4px}
.brand-mark:before{width:14px;height:4px;top:10px;left:10px}
.brand-mark:after{width:9px;height:4px;top:18px;left:10px;opacity:.72}
.nav-link{padding:9px 11px!important;color:var(--muted)!important;font-size:14px;font-weight:650;border-radius:9px;transition:.2s ease}
.nav-link:hover,.nav-link.active{background:var(--primary-pale);color:var(--primary)!important}
.nav-cta,.btn-main,.btn-light{min-height:46px;padding:10px 18px;border-radius:12px;font-weight:750;font-size:14px;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:all .2s ease}
.nav-cta,.btn-main{background:var(--primary);color:#fff;border:1px solid var(--primary);box-shadow:0 7px 16px rgba(43,95,133,.13)}
.nav-cta:hover,.btn-main:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--primary);border:1px solid #b8cede}
.btn-light:hover{background:var(--primary-pale);color:var(--primary);border-color:var(--primary)}
.navbar-toggler{border:1px solid var(--line);border-radius:10px;padding:8px 10px}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(43,95,133,.15)}
.navbar-toggler-icon{background-image:none;position:relative;width:22px;height:18px}
.navbar-toggler-icon:before,.navbar-toggler-icon:after{content:"";position:absolute;left:0;width:22px;height:2px;background:var(--primary);border-radius:3px}
.navbar-toggler-icon:before{top:3px;box-shadow:0 6px 0 var(--primary),0 12px 0 var(--primary)}
.progress-nav{border-top:1px solid rgba(220,230,236,.85);background:#fff;overflow-x:auto;white-space:nowrap;scrollbar-width:none}
.progress-nav::-webkit-scrollbar{display:none}
.progress-wrap{display:flex;align-items:center;gap:8px;min-height:50px}
.step-link{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;color:var(--soft);font-size:13px;font-weight:700;border-radius:9px;transition:.2s}
.step-link:hover,.step-link.active{background:var(--primary-pale);color:var(--primary)}
.step-no{font-size:11px;color:var(--accent);letter-spacing:.05em}
.page-hero{padding:68px 0 62px;background:#18384c;color:#fff;position:relative;overflow:hidden}
.page-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 76% 20%,rgba(133,183,193,.3),transparent 27%),linear-gradient(110deg,rgba(16,40,54,.92),rgba(38,78,98,.84))}
.page-hero .container{position:relative;z-index:1}
.breadcrumb-line{font-size:13px;color:#b8ced9;margin-bottom:24px}
.breadcrumb-line a:hover{color:#fff}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(360px,.72fr);gap:64px;align-items:center}
.hero-kicker{display:inline-flex;padding:5px 11px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);font-size:12px;color:#d5e8ed}
h1{font-size:clamp(34px,4.6vw,48px);line-height:1.25;letter-spacing:-.04em;margin:18px 0 18px;font-weight:800}
.hero-summary{max-width:650px;color:#d4e2e8;font-size:16px;line-height:1.9;margin:0 0 25px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 25px}
.hero-tag{padding:5px 10px;border-radius:8px;background:rgba(255,255,255,.1);color:#d7e8ed;font-size:12px}
.poster{min-height:350px;border-radius:20px;overflow:hidden;position:relative;background:linear-gradient(140deg,#6e9aa6 0%,#385f73 45%,#172e3f 100%);box-shadow:0 20px 45px rgba(9,26,38,.35);border:1px solid rgba(255,255,255,.18)}
.poster:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 72% 24%,rgba(255,255,255,.42),transparent 18%),linear-gradient(90deg,rgba(10,27,38,.5),transparent 60%)}
.poster:after{content:"";position:absolute;bottom:-44px;right:28%;width:185px;height:290px;border-radius:100px 100px 18px 18px;background:rgba(16,36,47,.62);box-shadow:-124px 78px 0 -42px rgba(22,43,53,.38)}
.poster-note{position:absolute;left:22px;right:22px;bottom:22px;z-index:2;padding:16px 17px;border-radius:14px;background:rgba(255,255,255,.94);color:var(--ink);box-shadow:0 12px 30px rgba(8,24,35,.2)}
.poster-note strong{display:block;font-size:17px;margin-bottom:5px}
.poster-note span{font-size:12px;color:var(--muted)}
.hot-badge{position:absolute;right:22px;top:22px;z-index:2;padding:6px 10px;border-radius:8px;background:#d9eee9;color:#2c6e65;font-size:12px;font-weight:800}
.section{padding:92px 0;scroll-margin-top:130px}
.section-tint{background:var(--section)}
.section-kicker{color:var(--primary);font-size:12px;font-weight:800;letter-spacing:.12em;margin-bottom:8px}
.section-title{font-size:clamp(27px,3vw,34px);font-weight:800;letter-spacing:-.025em;line-height:1.35;margin:0 0 12px;padding-left:15px;border-left:4px solid var(--primary)}
.section-desc{max-width:750px;color:var(--muted);margin:0;line-height:1.85}
.filter-toolbar{display:flex;flex-wrap:wrap;gap:9px;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);margin:32px 0 24px}
.filter-tag{border:1px solid var(--line);background:#f7fafc;border-radius:8px;padding:7px 12px;color:var(--muted);font-size:13px;cursor:pointer;transition:.2s}
.filter-tag:hover,.filter-tag.selected{background:var(--primary-pale);border-color:#b8d0df;color:var(--primary);font-weight:700}
.browse-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:28px}
.filter-panel{padding:22px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);align-self:start}
.filter-title{font-weight:800;font-size:17px;margin-bottom:15px}
.filter-group{padding:15px 0;border-top:1px solid var(--line)}
.filter-group:first-of-type{border-top:0;padding-top:0}
.filter-group h3{font-size:13px;color:var(--soft);margin:0 0 8px}
.filter-option{display:block;color:var(--muted);font-size:14px;padding:6px 0}
.filter-option:hover{color:var(--primary)}
.content-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.content-card{background:#fff;border:1px solid var(--line);border-radius:17px;overflow:hidden;box-shadow:var(--shadow);transition:.22s ease}
.content-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#b8d0df}
.card-cover{height:178px;position:relative;overflow:hidden;background:linear-gradient(135deg,#a8c3cc,#436b7c 55%,#203e50)}
.card-cover:before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(25,51,64,.3),rgba(255,255,255,.08),rgba(13,33,45,.55))}
.card-cover:after{content:"";position:absolute;width:120px;height:180px;right:22%;bottom:-42px;border-radius:80px 80px 12px 12px;background:rgba(24,47,58,.48);box-shadow:-78px 50px 0 -28px rgba(38,65,74,.34);transition:.3s}
.content-card:hover .card-cover:after{transform:scale(1.04)}
.cover-label{position:absolute;left:15px;top:14px;z-index:2;background:rgba(255,255,255,.9);color:var(--primary);padding:4px 8px;border-radius:7px;font-size:11px;font-weight:800}
.card-body{padding:18px}
.card-body h3{font-size:18px;line-height:1.45;margin:0 0 7px;font-weight:800}
.card-body p{margin:0 0 13px;color:var(--muted);font-size:13px;line-height:1.7}
.card-meta{display:flex;flex-wrap:wrap;gap:7px;color:var(--soft);font-size:11px;margin-bottom:15px}
.pill{display:inline-flex;align-items:center;padding:3px 8px;border-radius:7px;background:var(--primary-pale);color:var(--primary);font-weight:700}
.card-link{display:inline-flex;align-items:center;gap:5px;color:var(--primary);font-size:13px;font-weight:800}
.card-link:hover{color:var(--primary-dark)}
.note-callout{margin-top:26px;padding:17px 20px;border-left:4px solid var(--accent);background:var(--accent-pale);border-radius:0 12px 12px 0;color:#466b67;font-size:14px}
.faq-section{padding:88px 0}
.accordion-item{border:1px solid var(--line)!important;border-radius:13px!important;overflow:hidden;margin-bottom:11px;background:#fff;box-shadow:0 5px 16px rgba(35,73,98,.04)}
.accordion-button{font-weight:750;color:var(--ink);background:#fff;padding:17px 20px;box-shadow:none!important}
.accordion-button:not(.collapsed){background:var(--primary-pale);color:var(--primary)}
.accordion-body{color:var(--muted);font-size:14px;line-height:1.85;padding:0 20px 18px}
.continue-box{padding:30px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);height:100%;transition:.2s}
.continue-box:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.continue-box h3{font-size:19px;margin:0 0 7px}
.continue-box p{color:var(--muted);font-size:14px;margin:0 0 16px}
footer{background:#edf3f6;padding:62px 0 30px;color:var(--muted)}
.footer-brand{font-size:20px;color:var(--primary);font-weight:800;margin-bottom:11px}
.footer-copy{max-width:560px;font-size:13px;line-height:1.85;margin:0}
.footer-title{font-size:13px;color:var(--ink);font-weight:800;margin-bottom:13px}
.footer-links{padding:0;margin:0;list-style:none}
.footer-links li{margin-bottom:7px;font-size:13px}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:38px;padding-top:20px;font-size:12px;color:var(--soft)}
.fixed-cta{position:fixed;left:24px;right:24px;bottom:20px;z-index:1040;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 14px 35px rgba(35,73,98,.16);padding:11px 16px;display:flex;align-items:center;justify-content:space-between;gap:15px}
.fixed-cta small{color:var(--muted);font-size:13px}.fixed-cta strong{color:var(--primary);margin-right:8px}
.close-cta{border:0;background:transparent;color:var(--soft);font-size:20px;line-height:1;padding:8px;cursor:pointer}
.offcanvas{background:var(--bg)}
.offcanvas .nav-link{display:block;margin:4px 0}
@media(max-width:991px){
 .hero-grid{grid-template-columns:1fr;gap:35px}.hero-content{max-width:720px}.poster{min-height:310px}
 .browse-layout{grid-template-columns:1fr}.filter-panel{display:none}.content-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:767px){
 body{padding-bottom:92px}.navbar{min-height:66px}.brand{font-size:15px;max-width:245px}.progress-wrap{min-height:46px}
 .page-hero{padding:45px 0 42px}h1{font-size:34px}.hero-summary{font-size:15px}.poster{min-height:285px}
 .section{padding:64px 0}.content-grid{grid-template-columns:1fr}.filter-toolbar{margin-top:23px}
 .fixed-cta{left:10px;right:10px;bottom:10px;padding:8px 10px;border-radius:13px}.fixed-cta small{font-size:11px;line-height:1.35}.fixed-cta strong{display:block;margin:0}
 .fixed-cta .btn-main{min-height:44px;padding:8px 13px;font-size:12px}.close-cta{font-size:17px;padding:6px}
 .footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:5px}
}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}