/* roulang page: index */
:root{
      --blue:#2563eb;
      --blue-dark:#1746b0;
      --blue-soft:#eaf2ff;
      --ink:#172033;
      --muted:#667085;
      --line:#e6eaf0;
      --paper:#fff;
      --warm:#f8fafc;
      --mint:#e6f7f2;
      --amber:#fff4d8;
      --radius:18px;
      --shadow:0 14px 40px rgba(24,54,105,.08);
      --shadow-hover:0 20px 48px rgba(24,54,105,.15);
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--warm);line-height:1.7;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer}
    img{display:block;max-width:100%}
    .container{width:min(1160px,calc(100% - 40px));margin:0 auto}
    .site-header{height:76px;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30;backdrop-filter:blur(12px)}
    .nav-wrap{height:76px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:10px;min-width:235px}
    .brand-mark{width:38px;height:38px;background:var(--blue);color:#fff;border-radius:12px;display:grid;place-items:center;font-size:18px;font-weight:800;box-shadow:0 8px 18px rgba(37,99,235,.22)}
    .brand-text{font-weight:800;font-size:15px;letter-spacing:-.3px;line-height:1.25}
    .brand-sub{display:block;color:#8a94a6;font-size:11px;font-weight:500;margin-top:2px}
    .nav-links{display:flex;align-items:center;gap:6px;flex:1}
    .nav-link{padding:9px 13px;border-radius:10px;color:#596579;font-size:14px;transition:.2s}
    .nav-link:hover,.nav-link.active{color:var(--blue);background:var(--blue-soft)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .nav-search{width:160px;height:40px;border:1px solid var(--line);background:#f8fafc;border-radius:10px;display:flex;align-items:center;padding:0 11px;gap:7px;color:#9aa4b2}
    .nav-search input{width:100%;border:0;outline:0;background:transparent;font-size:13px}
    .nav-search:focus-within{border-color:#9bbcff;box-shadow:0 0 0 3px #dce9ff}
    .text-btn{color:#536078;font-size:13px;padding:8px 5px}
    .text-btn:hover{color:var(--blue)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:11px;min-height:44px;padding:0 18px;font-size:14px;font-weight:700;border:1px solid transparent;transition:.2s}
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(37,99,235,.18)}
    .btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 25px rgba(37,99,235,.25)}
    .btn-primary:active,.btn-secondary:active{transform:translateY(1px)}
    .btn-secondary{background:#fff;color:var(--blue);border-color:#c9d9f9}
    .btn-secondary:hover{background:var(--blue-soft);border-color:#91b5fa}
    .btn:focus-visible,.nav-link:focus-visible,.text-btn:focus-visible,summary:focus-visible{outline:3px solid #a9c7ff;outline-offset:3px}
    .menu-btn{display:none;border:0;background:#f0f5ff;color:var(--blue);width:40px;height:40px;border-radius:10px;font-size:20px}
    .hero{padding:72px 0 66px;background:linear-gradient(180deg,#f3f7ff 0%,#f8fafc 92%);border-bottom:1px solid #edf1f7}
    .hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:64px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:7px;color:var(--blue);font-weight:800;font-size:12px;letter-spacing:.08em;margin-bottom:16px}
    .eyebrow i{width:7px;height:7px;background:#2bb48a;border-radius:50%;display:inline-block}
    h1{font-size:clamp(34px,4.2vw,58px);line-height:1.18;letter-spacing:-2px;margin-bottom:20px}
    .hero-copy{font-size:17px;color:#596579;max-width:580px;line-height:1.9;margin-bottom:27px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .hero-note{display:flex;gap:22px;margin-top:25px;color:#7a8495;font-size:12px}
    .hero-note strong{display:block;font-size:18px;color:var(--ink);line-height:1.2}
    .index-panel{background:#fff;border:1px solid #e1e8f3;border-radius:24px;padding:22px;box-shadow:var(--shadow);transform:rotate(1deg)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:17px}
    .panel-title{font-size:15px;font-weight:800}
    .live-tag{font-size:11px;color:#188b6b;background:var(--mint);padding:4px 9px;border-radius:20px}
    .cover-row{display:grid;grid-template-columns:1.18fr .82fr;gap:12px;margin-bottom:13px}
    .cover{min-height:178px;border-radius:15px;background:#dbe8ff;position:relative;overflow:hidden;padding:15px;display:flex;align-items:flex-end}
    .cover:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,#bfd5ff,#edf4ff 55%,#cfecf0)}
    .cover.small{min-height:178px;background:#f4e5c8}.cover.small:before{background:linear-gradient(135deg,#ffe4b5,#fff8eb 58%,#d9ecff)}
    .cover-content{position:relative;z-index:1}
    .cover-label{display:inline-block;background:rgba(255,255,255,.82);color:var(--blue);font-size:10px;padding:3px 7px;border-radius:6px;margin-bottom:7px}
    .cover h3{font-size:16px;line-height:1.4}
    .panel-list{border-top:1px solid var(--line);padding-top:5px}
    .panel-item{display:flex;justify-content:space-between;align-items:center;padding:11px 0;border-bottom:1px solid #f0f2f5;font-size:13px}
    .panel-item span:last-child{font-size:11px;color:#9ba4b1}
    .section{padding:88px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section-kicker{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.1em;margin-bottom:7px}
    h2{font-size:32px;letter-spacing:-1px;line-height:1.3}
    .section-desc{color:var(--muted);max-width:570px;font-size:15px}
    .pain-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:20px;align-items:stretch}
    .pain-intro{background:#172b52;color:#fff;border-radius:var(--radius);padding:34px}
    .pain-intro h2{margin:10px 0 16px}
    .pain-intro p{color:#c9d6ec;font-size:14px}
    .pain-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .pain-card,.solution-card,.quote-card,.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 25px rgba(29,52,89,.04)}
    .pain-card{padding:23px}
    .number{color:var(--blue);font-size:12px;font-weight:800}
    .pain-card h3{font-size:16px;margin:8px 0 7px}
    .pain-card p{font-size:13px;color:var(--muted)}
    .solution{background:#eef5ff}
    .workbench{background:#fff;border:1px solid #d8e5fb;border-radius:22px;padding:20px;box-shadow:var(--shadow)}
    .filter-bar{display:flex;align-items:center;gap:8px;border-bottom:1px solid var(--line);padding-bottom:17px;margin-bottom:16px;flex-wrap:wrap}
    .filter-label{font-size:12px;color:#8b96a7;margin-right:4px}
    .filter{border:1px solid #dce3ed;background:#fff;color:#526078;border-radius:8px;padding:7px 11px;font-size:12px}
    .filter.selected{background:var(--blue-soft);border-color:#aac7f8;color:var(--blue);font-weight:700}
    .path-row{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
    .path{padding:18px 13px;border-radius:13px;background:#f8fafc;border:1px solid #edf0f5;position:relative}
    .path:not(:last-child):after{content:"→";position:absolute;right:-10px;top:35px;color:#9bbcf5;background:#fff;border-radius:50%;z-index:2}
    .path-icon{font-size:20px;color:var(--blue);margin-bottom:7px}
    .path strong{display:block;font-size:14px}.path span{font-size:12px;color:var(--muted)}
    .result-preview{margin-top:15px;padding:13px 15px;background:#f5f8fd;border-radius:12px;display:flex;justify-content:space-between;align-items:center;gap:15px}
    .result-preview p{font-size:13px}.result-preview small{color:#7f8a9a;display:block;margin-top:3px}
    .badge{display:inline-flex;align-items:center;padding:4px 8px;border-radius:6px;font-size:11px;font-weight:700;background:var(--blue-soft);color:var(--blue);white-space:nowrap}
    .outcome-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}
    .outcome-main{background:#fff;border:1px solid var(--line);border-radius:20px;padding:25px;box-shadow:var(--shadow)}
    .outcome-main h3{font-size:19px;margin-bottom:18px}
    .status-line{display:flex;align-items:center;gap:12px;padding:14px 0;border-top:1px solid #eef0f4}
    .status-dot{width:10px;height:10px;border-radius:50%;background:#2bb48a;flex:none}
    .status-line strong{font-size:14px}.status-line span{display:block;color:var(--muted);font-size:12px}
    .metric-stack{display:grid;gap:18px}
    .metric{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 8px 22px rgba(29,52,89,.04)}
    .metric b{font-size:30px;color:var(--blue);display:block;line-height:1.2}.metric span{color:var(--muted);font-size:13px}
    .quotes{background:#fff}
    .quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .quote-card{padding:25px}
    .quote-mark{color:#a9c8fa;font-size:32px;line-height:1}
    .quote-card p{font-size:14px;margin:10px 0 20px;color:#4e5b70}
    .quote-user{display:flex;align-items:center;gap:10px;border-top:1px solid var(--line);padding-top:15px}
    .avatar{width:34px;height:34px;background:#dbe8ff;color:var(--blue);border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:800}
    .quote-user strong{font-size:12px}.quote-user span{display:block;color:#8b96a7;font-size:11px}
    .topics{padding-top:0}
    .topic-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
    .topic-card{min-height:150px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;position:relative;overflow:hidden;transition:.25s}
    .topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#b8cef4}
    .topic-card:after{content:"";position:absolute;width:120px;height:120px;border-radius:50%;right:-35px;bottom:-55px;background:#edf4ff}
    .topic-card h3{font-size:17px;margin:12px 0 6px;position:relative;z-index:1}.topic-card p{font-size:13px;color:var(--muted);position:relative;z-index:1}
    .faq-section{padding-top:0}
    .faq-list{max-width:850px;margin:0 auto;display:grid;gap:10px}
    .faq-item{padding:0 20px;transition:.2s}
    .faq-item[open]{background:#f7faff;border-color:#c7daf9}
    summary{list-style:none;padding:19px 30px 19px 0;font-size:15px;font-weight:700;cursor:pointer;position:relative}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:0;color:var(--blue);font-size:22px;font-weight:400;top:15px}
    details[open] summary:after{content:"−"}
    .faq-answer{padding:0 0 19px;color:var(--muted);font-size:13px;max-width:760px}
    .cta{padding:0 0 88px}
    .cta-box{background:#eaf2ff;border:1px solid #d1e1fb;border-radius:24px;padding:40px 46px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta-box h2{font-size:28px;margin-bottom:8px}.cta-box p{color:#5f6e85;font-size:14px}
    .footer{background:#172033;color:#c3ccdb;padding:48px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:36px;border-bottom:1px solid #303b50}
    .footer .brand-text{color:#fff}.footer .brand-sub{color:#8290a7}.footer h3{color:#fff;font-size:13px;margin-bottom:13px}.footer a{display:block;color:#9caac0;font-size:13px;margin:7px 0}.footer a:hover{color:#fff}
    .footer-note{font-size:12px;color:#8290a7;max-width:310px;margin-top:15px}.copyright{padding-top:20px;font-size:12px;color:#8290a7;display:flex;justify-content:space-between;gap:15px}
    @media(max-width:1024px){.nav-wrap{gap:14px}.brand{min-width:210px}.nav-search{width:135px}.hero-grid{gap:35px}.container{width:min(100% - 32px,1160px)}}
    @media(max-width:768px){.site-header,.nav-wrap{height:68px}.nav-wrap{justify-content:space-between}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 20px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-link{padding:12px}.nav-actions .nav-search,.nav-actions .text-btn{display:none}.menu-btn{display:block}.hero{padding:52px 0}.hero-grid,.pain-wrap,.outcome-grid{grid-template-columns:1fr}.index-panel{transform:none}.section{padding:62px 0}.section-head{display:block}.section-desc{margin-top:10px}.quote-grid,.topic-grid{grid-template-columns:1fr 1fr}.cta-box{display:block;padding:32px 25px}.cta-box .btn{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:520px){h1{font-size:35px;letter-spacing:-1px}.hero-copy{font-size:15px}.hero-note{gap:14px}.cover-row,.path-row{grid-template-columns:1fr}.cover.small{min-height:130px}.path:not(:last-child):after{content:"↓";right:auto;left:50%;top:auto;bottom:-16px}.pain-list,.quote-grid,.topic-grid,.footer-grid{grid-template-columns:1fr}.filter-bar{align-items:stretch}.filter{flex:1}.result-preview{align-items:flex-start;flex-direction:column}.cta{padding-bottom:60px}.copyright{display:block}.copyright span{display:block;margin-top:8px}}

/* roulang page: category1 */
:root{
 --blue:#2563eb;
 --blue-dark:#1746b0;
 --blue-soft:#eaf2ff;
 --ink:#172033;
 --muted:#667085;
 --line:#e6eaf0;
 --paper:#fff;
 --warm:#f8fafc;
 --mint:#e6f7f2;
 --amber:#fff4d8;
 --radius:18px;
 --shadow:0 14px 40px rgba(24,54,105,.08);
 --shadow-hover:0 20px 48px rgba(24,54,105,.15)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--warm);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
img{display:block;max-width:100%}
.container{width:min(1160px,calc(100% - 40px));margin:0 auto}
.site-header{height:76px;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30;backdrop-filter:blur(12px)}
.nav-wrap{height:76px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;min-width:235px}
.brand-mark{width:38px;height:38px;background:var(--blue);color:#fff;border-radius:12px;display:grid;place-items:center;font-size:18px;font-weight:800;box-shadow:0 8px 18px rgba(37,99,235,.22)}
.brand-text{font-weight:800;font-size:15px;letter-spacing:-.3px;line-height:1.25}
.brand-sub{display:block;color:#8a94a6;font-size:11px;font-weight:500;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:6px;flex:1}
.nav-link{padding:9px 13px;border-radius:10px;color:#596579;font-size:14px;transition:.2s}
.nav-link:hover,.nav-link.active{color:var(--blue);background:var(--blue-soft)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-search{width:160px;height:40px;border:1px solid var(--line);background:#f8fafc;border-radius:10px;display:flex;align-items:center;padding:0 11px;gap:7px;color:#9aa4b2}
.nav-search input{width:100%;border:0;outline:0;background:transparent;font-size:13px}
.nav-search:focus-within{border-color:#9bbcff;box-shadow:0 0 0 3px #dce9ff}
.text-btn{color:#536078;font-size:13px;padding:8px 5px;background:none;border:0}
.text-btn:hover{color:var(--blue)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:11px;min-height:44px;padding:0 18px;font-size:14px;font-weight:700;border:1px solid transparent;transition:.2s}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(37,99,235,.18)}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 25px rgba(37,99,235,.25)}
.btn-secondary{background:#fff;color:var(--blue);border-color:#c9d9f9}
.btn-secondary:hover{background:var(--blue-soft);border-color:#91b5fa}
.btn:active{transform:translateY(1px)}
.btn:focus-visible,.nav-link:focus-visible,.text-btn:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid #a9c7ff;outline-offset:3px}
.menu-btn{display:none;border:0;background:#f0f5ff;color:var(--blue);width:40px;height:40px;border-radius:10px;font-size:20px}
.page-hero{padding:64px 0 54px;background:linear-gradient(180deg,#f3f7ff 0%,#f8fafc 100%);border-bottom:1px solid #edf1f7}
.breadcrumb{font-size:13px;color:#7b8799;margin-bottom:25px}
.breadcrumb a{color:var(--blue)}
.hero-layout{display:grid;grid-template-columns:1fr 390px;gap:58px;align-items:end}
.eyebrow{display:inline-flex;align-items:center;gap:7px;color:var(--blue);font-weight:800;font-size:12px;letter-spacing:.08em;margin-bottom:14px}
.eyebrow i{width:7px;height:7px;background:#2bb48a;border-radius:50%;display:inline-block}
h1{font-size:clamp(34px,4vw,56px);line-height:1.17;letter-spacing:-1.8px;margin:0 0 18px}
.hero-copy{font-size:16px;color:var(--muted);max-width:660px;margin:0}
.search-box{background:#fff;border:1px solid #dce5f2;border-radius:16px;padding:8px;box-shadow:var(--shadow);display:flex;gap:8px}
.search-box input{min-width:0;flex:1;border:0;padding:10px 12px;outline:0;color:var(--ink);font-size:14px}
.section{padding:70px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:25px}
.section-kicker{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.1em;margin-bottom:7px}
.section h2{font-size:28px;letter-spacing:-.7px;margin:0}
.section-desc{color:var(--muted);max-width:570px;font-size:14px;margin:0}
.browse-layout{display:grid;grid-template-columns:245px 1fr;gap:24px;align-items:start}
.filter-card,.result-card,.info-card,.faq-item{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 25px rgba(29,52,89,.04)}
.filter-card{padding:21px;position:sticky;top:98px}
.filter-card h3{font-size:16px;margin:0 0 18px}
.filter-group{padding:16px 0;border-top:1px solid #eff1f5}
.filter-group:first-of-type{border-top:0;padding-top:0}
.filter-label{font-size:12px;color:#7b8799;margin-bottom:9px;display:block;font-weight:700}
.filter-options{display:flex;flex-wrap:wrap;gap:7px}
.filter-chip{border:1px solid var(--line);background:#fff;color:#596579;border-radius:8px;padding:6px 9px;font-size:12px;transition:.2s}
.filter-chip:hover,.filter-chip.selected{color:var(--blue);border-color:#a9c7ff;background:var(--blue-soft)}
.result-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:13px;color:#7b8799;font-size:13px}
.sort-select{border:1px solid var(--line);background:#fff;border-radius:9px;padding:8px 10px;color:#596579;font-size:12px}
.result-list{display:grid;gap:13px}
.result-card{padding:15px;display:grid;grid-template-columns:156px 1fr auto;gap:18px;align-items:center;transition:.22s}
.result-card:hover{transform:translateY(-3px);border-color:#b8cef4;box-shadow:var(--shadow-hover)}
.cover{height:108px;border-radius:12px;background:linear-gradient(135deg,#dceaff,#f4f7fc);position:relative;overflow:hidden;display:flex;align-items:flex-end;padding:11px}
.cover:before{content:"";position:absolute;width:120px;height:120px;border-radius:50%;background:#b9d2ff;right:-33px;top:-38px}
.cover:after{content:"";position:absolute;width:80px;height:80px;border-radius:50%;background:#fff;opacity:.55;left:-24px;bottom:-36px}
.cover-text{position:relative;z-index:1;font-size:12px;font-weight:800;color:#2453a9}
.result-content h3{font-size:17px;margin:0 0 7px;line-height:1.4}
.result-content p{font-size:13px;color:var(--muted);margin:8px 0 9px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.badges{display:flex;gap:7px;flex-wrap:wrap}
.badge{display:inline-flex;align-items:center;padding:4px 8px;border-radius:6px;font-size:11px;font-weight:700;background:var(--blue-soft);color:var(--blue);white-space:nowrap}
.badge.mint{background:var(--mint);color:#168265}
.badge.amber{background:var(--amber);color:#9b6a16}
.result-meta{font-size:11px;color:#9aa4b2;white-space:nowrap;text-align:right}
.result-meta .btn{margin-top:12px;min-height:36px;padding:0 12px;font-size:12px}
.note-panel{margin-top:19px;background:#f0f6ff;border:1px solid #dce9ff;border-radius:15px;padding:18px 20px;color:#596579;font-size:13px}
.note-panel strong{color:var(--ink)}
.faq-section{padding-top:8px}
.faq-list{max-width:850px;margin:0 auto;display:grid;gap:10px}
.faq-item{padding:0 20px;transition:.2s}
.faq-item[open]{background:#f7faff;border-color:#c7daf9}
summary{list-style:none;cursor:pointer;padding:18px 0;font-size:15px;font-weight:700;display:flex;justify-content:space-between;gap:20px}
summary::-webkit-details-marker{display:none}
summary:after{content:"＋";color:var(--blue);font-size:20px;font-weight:400;line-height:1}
details[open] summary:after{content:"−"}
.faq-answer{padding:0 0 19px;color:var(--muted);font-size:13px;max-width:760px}
.cta{padding:0 0 78px}
.cta-box{background:#eaf2ff;border:1px solid #d1e1fb;border-radius:24px;padding:38px 44px;display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta-box h2{margin:0 0 8px;font-size:25px}
.cta-box p{margin:0;color:#596579;font-size:14px}
.footer{background:#fff;border-top:1px solid var(--line);padding:48px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px}
.footer h3{font-size:13px;margin:4px 0 14px}
.footer-grid a:not(.brand){display:block;color:#788396;font-size:13px;margin:8px 0;transition:.2s}
.footer-grid a:not(.brand):hover{color:var(--blue)}
.footer-note{color:#7b8799;font-size:13px;max-width:280px;margin:17px 0 0}
.copyright{border-top:1px solid #eef0f4;margin-top:35px;padding-top:18px;color:#9aa4b2;font-size:11px;display:flex;justify-content:space-between;gap:15px}
.empty-state{display:none}
@media(max-width:1024px){
 .nav-wrap{gap:15px}.brand{min-width:220px}.text-btn{display:none}
 .hero-layout{grid-template-columns:1fr 340px;gap:30px}
}
@media(max-width:768px){
 .container{width:min(100% - 30px,600px)}
 .site-header,.nav-wrap{height:68px}
 .nav-wrap{justify-content:space-between}
 .brand{min-width:0}.brand-text{font-size:13px}
 .nav-links{display:none;position:absolute;left:15px;right:15px;top:76px;background:#fff;padding:10px;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
 .nav-links.open{display:flex}.nav-link{padding:12px}
 .nav-actions{margin-left:auto}.nav-search{width:42px;padding:0 11px}.nav-search input{display:none}
 .menu-btn{display:block}
 .nav-actions .btn{display:none}
 .page-hero{padding:43px 0 38px}
 .hero-layout{grid-template-columns:1fr;gap:26px}
 h1{font-size:37px}
 .browse-layout{grid-template-columns:1fr}
 .filter-card{position:static}
 .result-card{grid-template-columns:125px 1fr;gap:14px}
 .result-meta{grid-column:2;text-align:left;margin-top:-8px}
 .result-meta .btn{margin-top:7px}
 .section{padding:52px 0}
 .cta-box{padding:29px 25px;display:block}
 .cta-box .btn{margin-top:20px}
 .footer-grid{grid-template-columns:1fr 1fr}
 .copyright{display:block}.copyright span{display:block;margin-bottom:6px}
}
@media(max-width:520px){
 .brand-sub{font-size:10px}.brand-mark{width:34px;height:34px}
 .hero-copy{font-size:14px}
 .search-box{display:block}.search-box input{width:100%;margin-bottom:7px}.search-box .btn{width:100%}
 .result-card{grid-template-columns:1fr}.cover{height:150px}
 .result-meta{grid-column:1}
 .section-head{display:block}.section-desc{margin-top:10px}
 .footer-grid{grid-template-columns:1fr}
}

/* roulang page: category2 */
:root{
      --blue:#2563eb;
      --blue-dark:#1746b0;
      --blue-soft:#eaf2ff;
      --ink:#172033;
      --muted:#667085;
      --line:#e6eaf0;
      --paper:#fff;
      --warm:#f8fafc;
      --mint:#e6f7f2;
      --amber:#fff4d8;
      --rose:#fff0f1;
      --radius:18px;
      --shadow:0 14px 40px rgba(24,54,105,.08);
      --shadow-hover:0 20px 48px rgba(24,54,105,.15);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--ink);
      background:var(--warm);
      line-height:1.7;
      -webkit-font-smoothing:antialiased
    }
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer}
    img{display:block;max-width:100%}
    .container{width:min(1160px,calc(100% - 40px));margin:0 auto}
    .site-header{
      height:76px;background:rgba(255,255,255,.95);border-bottom:1px solid var(--line);
      position:sticky;top:0;z-index:30;backdrop-filter:blur(12px)
    }
    .nav-wrap{height:76px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:10px;min-width:235px}
    .brand-mark{
      width:38px;height:38px;background:var(--blue);color:#fff;border-radius:12px;display:grid;
      place-items:center;font-size:18px;font-weight:800;box-shadow:0 8px 18px rgba(37,99,235,.22)
    }
    .brand-text{font-weight:800;font-size:15px;letter-spacing:-.3px;line-height:1.25}
    .brand-sub{display:block;color:#8a94a6;font-size:11px;font-weight:500;margin-top:2px}
    .nav-links{display:flex;align-items:center;gap:6px;flex:1}
    .nav-link{padding:9px 13px;border-radius:10px;color:#596579;font-size:14px;transition:.2s}
    .nav-link:hover,.nav-link.active{color:var(--blue);background:var(--blue-soft)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .nav-search{
      width:160px;height:40px;border:1px solid var(--line);background:#f8fafc;border-radius:10px;
      display:flex;align-items:center;padding:0 11px;gap:7px;color:#9aa4b2
    }
    .nav-search input{width:100%;border:0;outline:0;background:transparent;font-size:13px}
    .nav-search:focus-within{border-color:#9bbcff;box-shadow:0 0 0 3px #dce9ff}
    .text-btn{color:#536078;font-size:13px;padding:8px 5px;border:0;background:transparent}
    .text-btn:hover{color:var(--blue)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:11px;
      min-height:44px;padding:0 18px;font-size:14px;font-weight:700;border:1px solid transparent;transition:.2s
    }
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(37,99,235,.18)}
    .btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 25px rgba(37,99,235,.25)}
    .btn-primary:active,.btn-secondary:active{transform:translateY(1px)}
    .btn-secondary{background:#fff;color:var(--blue);border-color:#c9d9f9}
    .btn-secondary:hover{background:var(--blue-soft);border-color:#91b5fa}
    .btn:focus-visible,.nav-link:focus-visible,.text-btn:focus-visible,summary:focus-visible{
      outline:3px solid #a9c7ff;outline-offset:3px
    }
    .menu-btn{display:none;border:0;background:#f0f5ff;color:var(--blue);width:40px;height:40px;border-radius:10px;font-size:20px}
    .page-hero{
      padding:48px 0 54px;background:linear-gradient(180deg,#f1f6ff 0%,#f8fafc 100%);
      border-bottom:1px solid #edf1f7
    }
    .crumbs{display:flex;gap:9px;align-items:center;color:#8390a4;font-size:13px;margin-bottom:24px}
    .crumbs a:hover{color:var(--blue)}
    .crumbs strong{color:#536078;font-weight:600}
    .hero-layout{display:grid;grid-template-columns:1.02fr .98fr;gap:58px;align-items:end}
    .eyebrow{display:inline-flex;align-items:center;gap:7px;color:var(--blue);font-weight:800;font-size:12px;letter-spacing:.08em;margin-bottom:14px}
    .eyebrow i{width:7px;height:7px;background:#2bb48a;border-radius:50%;display:inline-block}
    h1{font-size:clamp(34px,4.5vw,58px);line-height:1.16;letter-spacing:-1.8px;margin:0 0 18px}
    .hero-copy{font-size:16px;color:#596579;max-width:610px;line-height:1.9;margin:0}
    .hero-search{
      margin-top:28px;display:flex;max-width:590px;background:#fff;border:1px solid #d9e2ef;
      padding:7px;border-radius:14px;box-shadow:0 10px 28px rgba(42,75,125,.07)
    }
    .hero-search input{flex:1;min-width:0;border:0;outline:0;padding:0 13px;color:var(--ink);font-size:14px}
    .hero-search:focus-within{border-color:#90b5f7;box-shadow:0 0 0 4px #dce9ff}
    .hero-aside{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .update-board{
      background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:var(--shadow);
      grid-column:span 2
    }
    .board-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px}
    .board-head h2{font-size:16px;margin:0}
    .status{font-size:11px;color:#168566;background:var(--mint);padding:4px 9px;border-radius:20px}
    .mini-row{display:flex;align-items:center;gap:12px;border-top:1px solid #f0f2f5;padding:13px 0}
    .mini-cover{width:54px;height:42px;border-radius:9px;background:#dce9ff;position:relative;overflow:hidden;flex:none}
    .mini-cover:after{content:"";position:absolute;width:44px;height:44px;border-radius:50%;background:#9cbbf4;right:-12px;bottom:-17px}
    .mini-info{min-width:0;flex:1}
    .mini-info b{display:block;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .mini-info span{display:block;color:#8a94a6;font-size:11px}
    .mini-time{font-size:11px;color:#7d8899}
    .section{padding:82px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}
    .section-kicker{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.1em;margin-bottom:7px}
    h2{font-size:30px;letter-spacing:-.8px;line-height:1.3;margin:0}
    .section-desc{color:var(--muted);max-width:590px;font-size:15px;margin:10px 0 0}
    .filter-shell{display:grid;grid-template-columns:230px 1fr;gap:20px;align-items:start}
    .filter-card,.result-card,.theme-card,.faq-item{
      background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 25px rgba(29,52,89,.04)
    }
    .filter-card{padding:22px;position:sticky;top:98px}
    .filter-card h3{font-size:16px;margin:0 0 18px}
    .filter-group{padding:16px 0;border-top:1px solid #eef1f5}
    .filter-group:first-of-type{border-top:0;padding-top:0}
    .filter-label{display:block;font-size:12px;font-weight:800;margin-bottom:10px;color:#47556c}
    .filter-option{display:flex;align-items:center;gap:9px;color:#68758a;font-size:13px;margin:9px 0}
    .filter-option input{accent-color:var(--blue)}
    .filter-reset{width:100%;margin-top:12px;min-height:38px;border:1px solid #d8e3f7;color:var(--blue);background:#f7faff;border-radius:9px;font-size:12px}
    .filter-reset:hover{background:var(--blue-soft)}
    .result-area{min-width:0}
    .result-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:13px;color:#7b8798;font-size:13px}
    .sort-select{border:1px solid var(--line);border-radius:9px;background:#fff;padding:8px 11px;color:#596579;outline:0}
    .sort-select:focus{border-color:#8eb2f4;box-shadow:0 0 0 3px #dce9ff}
    .result-list{display:grid;gap:13px}
    .result-card{padding:14px;display:flex;gap:16px;transition:.24s}
    .result-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#b9cff4}
    .cover{
      width:154px;height:105px;border-radius:13px;overflow:hidden;position:relative;flex:none;
      background:linear-gradient(135deg,#dce9ff,#b4caf2)
    }
    .cover:before{content:"";position:absolute;width:110px;height:110px;border-radius:50%;background:#8eafe9;left:-25px;bottom:-48px}
    .cover:after{content:"";position:absolute;width:90px;height:90px;border-radius:20px;background:#edf4ff;right:-24px;top:-27px;transform:rotate(28deg)}
    .cover-label{position:absolute;z-index:1;left:10px;bottom:9px;background:rgba(23,32,51,.73);color:#fff;font-size:11px;padding:3px 7px;border-radius:5px}
    .result-content{min-width:0;flex:1;padding:2px 4px 0 0}
    .result-title{font-size:17px;margin:0 0 6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .result-summary{font-size:13px;color:var(--muted);margin:8px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .meta-line{display:flex;align-items:center;gap:10px;color:#8a94a6;font-size:11px;flex-wrap:wrap}
    .badge{display:inline-flex;align-items:center;padding:4px 8px;border-radius:6px;font-size:11px;font-weight:700;background:var(--blue-soft);color:var(--blue);white-space:nowrap}
    .badge.green{background:var(--mint);color:#168566}
    .badge.amber{background:var(--amber);color:#9b7118}
    .result-action{align-self:center;white-space:nowrap}
    .result-action .btn{min-height:36px;padding:0 13px;font-size:12px}
    .feature-band{padding:0 0 82px}
    .feature-wrap{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);overflow:hidden}
    .feature-head{display:flex;justify-content:space-between;align-items:center;padding:24px 28px;border-bottom:1px solid var(--line)}
    .feature-head h2{font-size:21px}
    .feature-scroll{display:flex;gap:15px;padding:21px 28px;overflow-x:auto}
    .feature-item{min-width:245px;padding:18px;background:#f7faff;border:1px solid #dce8fb;border-radius:14px}
    .feature-item:hover{border-color:#9bbcf5;background:#f1f6ff}
    .feature-item strong{font-size:15px;display:block}
    .feature-item p{font-size:12px;color:var(--muted);margin:7px 0 13px}
    .feature-foot{font-size:11px;color:#8792a3}
    .theme-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .theme-card{padding:23px;transition:.2s}
    .theme-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
    .theme-card h3{font-size:17px;margin:13px 0 6px}
    .theme-card p{font-size:13px;color:var(--muted);margin:0 0 15px}
    .topic-tags{display:flex;gap:7px;flex-wrap:wrap}
    .topic-tag{font-size:11px;color:#536078;background:#f4f6f9;border:1px solid #e5eaf1;border-radius:6px;padding:4px 8px}
    .faq-section{padding-top:0}
    .faq-list{max-width:850px;margin:0 auto;display:grid;gap:10px}
    .faq-item{padding:0 20px;transition:.2s}
    .faq-item[open]{background:#f7faff;border-color:#c7daf9}
    summary{list-style:none;cursor:pointer;padding:19px 0;font-size:15px;font-weight:700;display:flex;justify-content:space-between;gap:15px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"＋";color:var(--blue);font-size:20px;line-height:1;font-weight:400}
    details[open] summary:after{content:"−"}
    .faq-answer{padding:0 0 19px;color:var(--muted);font-size:13px;max-width:760px}
    .cta{padding:0 0 88px}
    .cta-box{background:#eaf2ff;border:1px solid #d1e1fb;border-radius:24px;padding:40px 46px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta-box h2{font-size:27px}
    .cta-box p{color:#5e6d83;font-size:14px;margin:8px 0 0;max-width:620px}
    .footer{background:#fff;border-top:1px solid var(--line);padding:48px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .footer-note{color:#7a8495;font-size:13px;max-width:285px;margin-top:16px}
    .footer h3{font-size:13px;margin:4px 0 13px}
    .footer-grid>div:not(:first-child) a{display:block;color:#7a8495;font-size:13px;margin:8px 0}
    .footer-grid>div:not(:first-child) a:hover{color:var(--blue)}
    .copyright{display:flex;justify-content:space-between;gap:15px;border-top:1px solid #eef1f5;margin-top:35px;padding-top:18px;color:#9aa4b2;font-size:11px}
    .empty-state{display:none;text-align:center;padding:32px;color:var(--muted);background:#fff;border:1px dashed #cbd8ea;border-radius:16px}
    @media(max-width:1024px){
      .nav-wrap{gap:15px}.brand{min-width:205px}.nav-search{width:135px}
      .hero-layout{gap:30px}.filter-shell{grid-template-columns:205px 1fr}
    }
    @media(max-width:768px){
      .site-header,.nav-wrap{height:68px}.container{width:min(100% - 28px,680px)}
      .nav-wrap{gap:10px}.brand{min-width:0;flex:1}.brand-text{font-size:13px}.brand-sub{font-size:10px}
      .brand-mark{width:34px;height:34px;border-radius:10px}.nav-actions{gap:6px}.nav-search{width:38px;border:0;background:#f0f5ff;padding:0;justify-content:center}
      .nav-search span{font-size:21px}.nav-search input,.text-btn,.nav-actions>.btn{display:none}.menu-btn{display:block}
      .nav-links{display:none;position:absolute;left:14px;right:14px;top:74px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:8px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}.nav-link{padding:12px}
      .page-hero{padding:35px 0 40px}.hero-layout{grid-template-columns:1fr;gap:30px}
      h1{font-size:36px}.hero-aside{grid-template-columns:1fr}.update-board{grid-column:auto}
      .section{padding:60px 0}.section-head{display:block}.section-desc{margin-top:10px}
      .filter-shell{display:block}.filter-card{position:static;margin-bottom:18px}.filter-group{display:inline-block;vertical-align:top;width:49%;padding-right:12px}
      .result-toolbar{align-items:flex-start;gap:10px}.result-card{align-items:flex-start}.result-action{align-self:flex-end}
      .theme-grid{grid-template-columns:1fr}.cta-box{display:block;padding:30px 25px}.cta-box .btn{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px}.copyright{display:block}.copyright span{display:block;margin-top:5px}
    }
    @media(max-width:520px){
      .hero-search{display:block;background:transparent;border:0;box-shadow:none;padding:0}.hero-search input{width:100%;height:45px;background:#fff;border:1px solid #d9e2ef;border-radius:11px;margin-bottom:10px;padding:0 13px}
      .hero-search .btn{width:100%}.hero-aside{display:block}.update-board{margin-top:2px}
      .filter-group{display:block;width:100%;padding:13px 0}.result-card{display:block}.cover{width:100%;height:145px;margin-bottom:13px}.result-action{margin-top:13px}.result-action .btn{width:100%}
      .feature-head{padding:20px;display:block}.feature-head .badge{margin-top:10px}.feature-scroll{padding:16px 20px}
      .footer-grid{grid-template-columns:1fr}.footer{padding-top:38px}
    }