/* roulang page: index */
:root{
      --primary:#2f6bff;
      --primary-dark:#1948c7;
      --secondary:#0e9eaa;
      --accent:#e89542;
      --bg:#f5f8fc;
      --surface:#fff;
      --surface-soft:#edf4ff;
      --text:#17253d;
      --muted:#687790;
      --border:#dce5f1;
      --success:#188b68;
      --warning:#a9651d;
      --radius:18px;
      --radius-sm:10px;
      --shadow:0 16px 42px rgba(31,62,110,.09);
      --shadow-soft:0 8px 24px rgba(31,62,110,.06);
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .site-header{background:rgba(255,255,255,.94);border-bottom:1px solid var(--border);position:relative;z-index:5}
    .masthead{min-height:88px;display:flex;align-items:center;gap:30px}
    .brand{display:flex;align-items:center;gap:12px;min-width:320px}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--primary);position:relative;box-shadow:0 7px 18px rgba(47,107,255,.24)}
    .brand-mark::before,.brand-mark::after{content:"";position:absolute;background:#fff;border-radius:3px}
    .brand-mark::before{width:16px;height:4px;left:11px;top:12px;transform:rotate(-35deg)}
    .brand-mark::after{width:12px;height:4px;left:14px;top:22px;transform:rotate(-35deg)}
    .brand-name{font-size:1.28rem;font-weight:800;letter-spacing:-.04em;line-height:1.2}
    .brand-note{font-size:.72rem;color:var(--muted);margin-top:4px}
    .main-nav{border-left:1px solid var(--border);padding-left:28px;flex:1}
    .main-nav ul{display:flex;align-items:center;gap:25px;margin:0}
    .main-nav a{font-size:.92rem;color:var(--muted);font-weight:600;position:relative}
    .main-nav a:hover,.main-nav a.active{color:var(--primary)}
    .main-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-10px;height:2px;background:var(--primary)}
    .nav-cta{margin-left:auto;white-space:nowrap}
    .button{border:0;border-radius:9px;padding:.78rem 1.2rem;font-weight:700;line-height:1.2;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.25s ease}
    .button.primary{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(47,107,255,.2)}
    .button.primary:hover{background:var(--primary-dark);transform:translateY(-2px);color:#fff}
    .button.secondary{background:#fff;color:var(--primary);border:1px solid #b8cdfb}
    .button.secondary:hover{background:var(--surface-soft);border-color:var(--primary)}
    .button:focus,input:focus,select:focus,textarea:focus,.accordion-title:focus{outline:3px solid rgba(47,107,255,.24);outline-offset:2px}
    .hero{padding:62px 0 72px;background:linear-gradient(115deg,#fff 0%,#f4f8ff 64%,#eaf7f7 100%);border-bottom:1px solid var(--border)}
    .hero-grid{display:grid;grid-template-columns:1.03fr .97fr;gap:62px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-size:.78rem;font-weight:800;letter-spacing:.12em}
    .eyebrow::before,.section-kicker::before{content:"";width:24px;height:2px;background:var(--accent)}
    h1,h2,h3{margin:0;color:var(--text);letter-spacing:-.045em;line-height:1.2}
    h1{font-size:clamp(2.4rem,5vw,4.5rem);max-width:680px;margin:18px 0 20px}
    h2{font-size:clamp(1.75rem,3vw,2.7rem)}
    h3{font-size:1.15rem}
    .hero-copy{font-size:1.06rem;color:var(--muted);max-width:620px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .hero-meta{display:flex;gap:22px;flex-wrap:wrap;margin-top:28px;color:var(--muted);font-size:.83rem}
    .hero-meta strong{display:block;color:var(--text);font-size:1rem}
    .address-panel{background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:24px;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .address-panel::before{content:"";position:absolute;right:-50px;top:-55px;width:170px;height:170px;border:22px solid #dce9ff;border-radius:50%}
    .panel-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;position:relative}
    .panel-title{font-weight:800;font-size:1.1rem}
    .badge{display:inline-flex;align-items:center;border-radius:30px;padding:5px 10px;font-size:.74rem;font-weight:800}
    .badge.green{color:var(--success);background:#e4f6ef}
    .badge.orange{color:var(--warning);background:#fff0df}
    .address-card{background:#f8fbff;border:1px solid var(--border);padding:18px;border-radius:14px;margin-bottom:13px}
    .address-line{display:flex;justify-content:space-between;gap:14px;align-items:center}
    .address-line strong{font-size:1rem}
    .address-card p{font-size:.82rem;color:var(--muted);margin:7px 0 0}
    .panel-foot{font-size:.76rem;color:var(--muted);margin:18px 0 0}
    .section{padding:88px 0}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:34px}
    .section-head p{max-width:520px;color:var(--muted);margin:0}
    .service-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px;align-items:start}
    .service-intro p{color:var(--muted);margin-top:18px}
    .service-list{border-top:1px solid var(--border)}
    .service-item{display:grid;grid-template-columns:58px 1fr auto;gap:18px;align-items:center;padding:21px 0;border-bottom:1px solid var(--border)}
    .service-num{font-size:1.2rem;font-weight:800;color:var(--primary)}
    .service-item p{margin:5px 0 0;color:var(--muted);font-size:.9rem}
    .service-tag{color:var(--secondary);font-size:.75rem;font-weight:800;white-space:nowrap}
    .metric-band{background:#182b4b;color:#fff;border-radius:24px;padding:28px 32px;display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:24px;align-items:center}
    .metric-band h2{color:#fff;font-size:1.55rem}
    .metric-band p{color:#b7c7e0;font-size:.85rem;margin:7px 0 0}
    .metric{border-left:1px solid rgba(255,255,255,.2);padding-left:24px}
    .metric strong{font-size:1.35rem;display:block}
    .metric span{font-size:.8rem;color:#b7c7e0}
    .case-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:24px}
    .case-main,.route-card,.tip-card,.contact-card,.contact-form{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-soft)}
    .case-main{padding:32px;min-height:300px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(135deg,#fff 45%,#edf5ff)}
    .case-main p{color:var(--muted);max-width:600px}
    .case-label{display:flex;justify-content:space-between;align-items:center}
    .case-index{font-size:4.5rem;font-weight:900;color:#d9e7ff;line-height:1}
    .side-stack{display:grid;gap:24px}
    .route-card{padding:24px}
    .route-card h3{margin:11px 0}
    .route-card p{font-size:.86rem;color:var(--muted);margin:0}
    .route-card a{display:inline-block;margin-top:15px;color:var(--primary);font-size:.85rem;font-weight:800}
    .plan-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .plan{padding:25px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);display:grid;grid-template-columns:48px 1fr;gap:18px}
    .plan-icon{width:42px;height:42px;border-radius:12px;background:var(--surface-soft);color:var(--primary);display:grid;place-items:center;font-weight:900}
    .plan p{font-size:.86rem;color:var(--muted);margin:8px 0 12px}
    .plan .badge{font-size:.7rem}
    .faq-wrap{max-width:850px;margin:0 auto}
    .accordion{background:transparent}
    .accordion-item{border:1px solid var(--border)!important;border-radius:12px!important;margin-bottom:12px;overflow:hidden;background:#fff}
    .accordion-title{border:0!important;color:var(--text);font-weight:750;font-size:1rem;padding:20px 54px 20px 22px}
    .accordion-title:hover{background:#f6f9ff;color:var(--primary)}
    .accordion-content{border:0!important;padding:0 22px 20px;color:var(--muted);font-size:.9rem;line-height:1.8}
    .contact-section{background:#eaf2ff}
    .contact-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:28px}
    .contact-card{padding:30px;background:#1f5be5;color:#fff;border:0}
    .contact-card h2{color:#fff}
    .contact-card p{color:#d9e5ff;margin:17px 0 28px}
    .contact-note{border-top:1px solid rgba(255,255,255,.25);padding-top:18px;font-size:.78rem;color:#d9e5ff}
    .contact-form{padding:30px}
    label{font-weight:700;font-size:.86rem;color:var(--text)}
    input,select,textarea{border:1px solid var(--border)!important;border-radius:9px!important;box-shadow:none!important;background:#fbfdff!important;margin-top:7px!important;color:var(--text)!important}
    textarea{min-height:112px;resize:vertical}
    .form-hint{font-size:.76rem;color:var(--muted);margin:0 0 18px}
    .site-footer{background:#fff;border-top:1px solid var(--border);padding:48px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr;gap:40px;padding-bottom:34px}
    .footer-brand{font-weight:800;font-size:1.15rem}
    .footer-copy{color:var(--muted);font-size:.84rem;max-width:360px;margin-top:12px}
    .footer-title{font-weight:800;margin-bottom:12px}
    .footer-links a{display:block;color:var(--muted);font-size:.84rem;margin:7px 0}
    .footer-links a:hover{color:var(--primary)}
    .copyright{border-top:1px solid var(--border);padding-top:18px;color:var(--muted);font-size:.75rem;display:flex;justify-content:space-between;gap:20px}
    @media(max-width:992px){
      .brand{min-width:270px}.main-nav{padding-left:18px}.main-nav ul{gap:14px}
      .hero-grid,.service-layout,.case-layout,.contact-layout{grid-template-columns:1fr;gap:32px}
      .metric-band{grid-template-columns:1fr 1fr}.metric:first-of-type{border-left:0;padding-left:0}
    }
    @media(max-width:768px){
      .container{width:min(100% - 28px,600px)}.masthead{min-height:74px;gap:12px}.brand{min-width:0;flex:1}
      .brand-name{font-size:1rem}.brand-note{display:none}.brand-mark{width:32px;height:32px}
      .nav-cta{display:none}.main-nav{border:0;padding:0;flex:none}.main-nav ul{display:none}
      .main-nav .menu-icon{display:block}.hero{padding:46px 0 52px}h1{font-size:2.45rem}
      .section{padding:62px 0}.section-head{display:block}.section-head p{margin-top:15px}
      .metric-band{grid-template-columns:1fr;padding:24px}.metric{border-left:0;border-top:1px solid rgba(255,255,255,.2);padding:18px 0 0}
      .metric:first-of-type{border-top:0}.plan-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:26px}
      .footer-grid>div:first-child{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-top:8px}
    }
    @media(max-width:520px){
      .hero-actions .button{width:100%}.address-line{align-items:flex-start;flex-direction:column;gap:8px}
      .service-item{grid-template-columns:38px 1fr}.service-tag{grid-column:2}.case-main{padding:23px}.contact-form,.contact-card{padding:22px}
      .footer-grid{grid-template-columns:1fr}
    }

/* roulang page: category1 */
:root{
      --primary:#2f6bff;
      --primary-dark:#1948c7;
      --secondary:#0e9eaa;
      --accent:#e89542;
      --bg:#f5f8fc;
      --surface:#fff;
      --surface-soft:#edf4ff;
      --text:#17253d;
      --muted:#687790;
      --border:#dce5f1;
      --success:#188b68;
      --warning:#a9651d;
      --danger:#b74d55;
      --radius:18px;
      --radius-sm:10px;
      --shadow:0 16px 42px rgba(31,62,110,.09);
      --shadow-soft:0 8px 24px rgba(31,62,110,.06);
    }
    html{scroll-behavior:smooth}
    *{box-sizing:border-box}
    body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    h1,h2,h3,h4,p{margin-top:0}
    h1{font-size:clamp(2rem,4vw,3.6rem);line-height:1.18;letter-spacing:-.055em;margin-bottom:20px}
    h2{font-size:clamp(1.65rem,2.6vw,2.35rem);line-height:1.25;letter-spacing:-.04em;margin-bottom:14px}
    h3{font-size:1.15rem;line-height:1.35}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .site-header{background:rgba(255,255,255,.96);border-bottom:1px solid var(--border);position:relative;z-index:10}
    .masthead{min-height:82px;display:flex;align-items:center;gap:26px}
    .brand{display:flex;align-items:center;gap:12px;min-width:320px}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--primary);position:relative;box-shadow:0 7px 18px rgba(47,107,255,.24);flex:0 0 auto}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;background:#fff;border-radius:3px}
    .brand-mark:before{width:16px;height:4px;left:11px;top:12px;transform:rotate(-35deg)}
    .brand-mark:after{width:12px;height:4px;left:14px;top:22px;transform:rotate(-35deg)}
    .brand-name{font-size:1.28rem;font-weight:800;letter-spacing:-.04em;line-height:1.2;display:block}
    .brand-note{font-size:.72rem;color:var(--muted);margin-top:4px;display:block}
    .main-nav{border-left:1px solid var(--border);padding-left:28px;flex:1}
    .main-nav ul{display:flex;align-items:center;gap:25px;margin:0;list-style:none}
    .main-nav a{font-size:.92rem;color:var(--muted);font-weight:600;position:relative}
    .main-nav a:hover,.main-nav a.active{color:var(--primary)}
    .main-nav a.active:after{content:"";position:absolute;left:0;right:0;bottom:-10px;height:2px;background:var(--primary)}
    .nav-cta{margin-left:auto;white-space:nowrap}
    .button{border:0;border-radius:9px;padding:.78rem 1.2rem;font-weight:700;line-height:1.2;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.25s ease}
    .button.primary{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(47,107,255,.2)}
    .button.primary:hover{background:var(--primary-dark);transform:translateY(-2px);color:#fff}
    .button.secondary{background:#fff;color:var(--primary);border:1px solid #b8cdfb}
    .button.secondary:hover{background:var(--surface-soft);border-color:var(--primary)}
    .button:focus,input:focus,select:focus,textarea:focus,.accordion-title:focus{outline:3px solid rgba(47,107,255,.24);outline-offset:2px}
    .page-hero{padding:58px 0 52px;background:linear-gradient(115deg,#fff 0%,#f4f8ff 68%,#eaf7f7 100%);border-bottom:1px solid var(--border)}
    .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:60px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-size:.78rem;font-weight:800;letter-spacing:.12em}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:var(--accent)}
    .hero-copy{font-size:1.06rem;color:var(--muted);max-width:650px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
    .breadcrumb{font-size:.82rem;color:var(--muted);margin-bottom:22px}
    .breadcrumb a{color:var(--primary)}
    .cover-panel{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
    .cover-art{height:215px;border-radius:13px;background:#eaf2ff;position:relative;overflow:hidden;padding:24px;display:flex;flex-direction:column;justify-content:space-between}
    .cover-art:after{content:"";position:absolute;width:210px;height:210px;border:1px solid rgba(47,107,255,.2);border-radius:50%;right:-50px;top:-60px;box-shadow:0 0 0 24px rgba(47,107,255,.04),0 0 0 48px rgba(47,107,255,.035)}
    .cover-label{position:relative;z-index:1;color:var(--primary);font-weight:800;font-size:.78rem;letter-spacing:.1em}
    .cover-title{position:relative;z-index:1;font-size:1.55rem;line-height:1.3;font-weight:800;max-width:250px}
    .cover-bottom{position:relative;z-index:1;display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:.78rem}
    .panel-status{display:flex;align-items:center;gap:8px;margin-top:17px;color:var(--muted);font-size:.84rem}
    .status-dot{width:8px;height:8px;background:var(--success);border-radius:50%;box-shadow:0 0 0 4px #e4f6ef}
    .section{padding:78px 0}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}
    .section-head p{max-width:550px;color:var(--muted);margin:0}
    .index-bar{display:flex;gap:10px;flex-wrap:wrap;padding:16px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
    .filter-chip{border:1px solid var(--border);background:#fff;border-radius:30px;padding:8px 15px;color:var(--muted);font-size:.82rem;font-weight:700}
    .filter-chip:hover,.filter-chip.current{background:var(--surface-soft);color:var(--primary);border-color:#b8cdfb}
    .feature-panel{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:30px;position:relative;overflow:hidden}
    .feature-panel:before{content:"最新查看";position:absolute;right:25px;top:24px;color:var(--accent);font-size:.75rem;font-weight:800}
    .feature-top{display:flex;justify-content:space-between;gap:20px;align-items:start;margin-bottom:24px}
    .badge{display:inline-flex;align-items:center;border-radius:30px;padding:5px 10px;font-size:.74rem;font-weight:800}
    .badge.green{color:var(--success);background:#e4f6ef}
    .badge.orange{color:var(--warning);background:#fff0df}
    .feature-panel p{color:var(--muted);max-width:720px}
    .feature-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:25px 0}
    .point{background:#f8fbff;border:1px solid var(--border);border-radius:var(--radius-sm);padding:15px}
    .point strong{display:block;font-size:.92rem;margin-bottom:4px}
    .point span{font-size:.78rem;color:var(--muted)}
    .listing-layout{display:grid;grid-template-columns:1.55fr .75fr;gap:22px;align-items:start}
    .guide-list{border-top:1px solid var(--border)}
    .guide-item{display:grid;grid-template-columns:58px 1fr auto;gap:18px;align-items:center;padding:22px 0;border-bottom:1px solid var(--border)}
    .guide-no{font-size:1.45rem;font-weight:800;color:#b7c7df}
    .guide-item h3{margin:0 0 5px}
    .guide-item p{margin:0;color:var(--muted);font-size:.88rem}
    .guide-meta{font-size:.75rem;color:var(--secondary);font-weight:800;white-space:nowrap}
    .side-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:25px;box-shadow:var(--shadow-soft)}
    .side-card h3{margin-bottom:12px}
    .side-card p,.side-card li{font-size:.86rem;color:var(--muted)}
    .side-card ul{margin:0;padding-left:18px}
    .tip-section{background:#eef7f7}
    .tip-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .tip-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:25px}
    .tip-card h3{margin-bottom:10px}
    .tip-card p{color:var(--muted);font-size:.9rem;margin-bottom:0}
    .faq-wrap{max-width:850px;margin:0 auto}
    .accordion-item{border:1px solid var(--border)!important;border-radius:12px!important;margin-bottom:12px;overflow:hidden;background:#fff}
    .accordion-title{border:0!important;color:var(--text);font-weight:750;font-size:1rem;padding:20px 54px 20px 22px}
    .accordion-title:hover{background:#f6f9ff;color:var(--primary)}
    .accordion-content{border:0!important;color:var(--muted);font-size:.9rem;padding:0 22px 20px}
    .cta-section{padding:68px 0;background:#eaf2ff}
    .cta-box{background:#fff;border:1px solid #cfe0ff;border-radius:var(--radius);padding:34px;display:flex;justify-content:space-between;align-items:center;gap:25px;box-shadow:var(--shadow-soft)}
    .cta-box p{color:var(--muted);margin:8px 0 0}
    .site-footer{background:#fff;border-top:1px solid var(--border);padding:48px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr;gap:40px;padding-bottom:34px}
    .footer-brand{font-weight:800;font-size:1.15rem}
    .footer-copy{color:var(--muted);font-size:.84rem;max-width:360px;margin-top:12px}
    .footer-title{font-weight:800;margin-bottom:12px}
    .footer-links a{display:block;color:var(--muted);font-size:.84rem;margin:7px 0}
    .footer-links a:hover{color:var(--primary);padding-left:3px}
    .copyright{border-top:1px solid var(--border);padding-top:18px;color:var(--muted);font-size:.76rem;display:flex;justify-content:space-between;gap:20px}
    @media(max-width:900px){
      .masthead{gap:15px}.brand{min-width:250px}.main-nav{padding-left:18px}
      .hero-grid,.listing-layout{grid-template-columns:1fr}.cover-panel{max-width:620px}
    }
    @media(max-width:640px){
      .container{width:min(100% - 28px,1180px)}
      .masthead{min-height:70px;position:relative}.brand-name{font-size:1.05rem}.brand-note{font-size:.64rem}
      .main-nav{border:0;padding:0;display:flex;justify-content:flex-end}.main-nav>ul{display:none}
      .menu-icon{display:block!important;padding:8px!important;cursor:pointer}
      .nav-cta{display:none}
      #mobile-menu{display:none!important;position:absolute!important;right:0;top:62px;z-index:20;min-width:220px}
      #mobile-menu.is-open{display:block!important}
      #mobile-menu a{display:block;padding:8px 10px;color:var(--muted)}
      .page-hero{padding:42px 0}.hero-grid{gap:30px}.hero-actions .button{width:100%}
      .section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:12px}
      .feature-panel{padding:22px}.feature-top{display:block}.feature-panel:before{position:static;display:block;margin-bottom:12px}
      .feature-points,.tip-grid{grid-template-columns:1fr}
      .guide-item{grid-template-columns:38px 1fr;gap:12px}.guide-meta{grid-column:2}
      .cta-box{display:block;padding:25px}.cta-box .button{width:100%;margin-top:20px}
      .footer-grid{grid-template-columns:1fr;gap:24px}.copyright{display:block}.copyright span{display:block;margin-top:5px}
    }