/* roulang page: index */
:root{
      --blue:#1769D2;--blue-dark:#0F4FA8;--cyan:#18A7C9;--coral:#F26B4B;
      --bg:#F5F8FC;--surface:#fff;--pale:#EAF3FC;--ink:#172436;--muted:#5E6D80;
      --line:#DDE7F1;--green:#2D9B72;--radius:16px;--shadow:0 10px 30px rgba(35,72,112,.10);
      --shadow-hover:0 16px 38px rgba(35,72,112,.16);--font:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    }
    *,*:before,*:after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none;transition:.2s ease}
    img{display:block;width:100%;object-fit:cover}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    .container{max-width:1200px;margin:0 auto;padding:0 24px}
    .topbar{height:38px;background:var(--pale);border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
    .topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
    .top-actions{display:flex;gap:22px}.top-actions a:hover{color:var(--blue)}
    .site-header{background:rgba(255,255,255,.96);position:sticky;top:0;z-index:20;border-bottom:1px solid transparent}
    .site-header.is-stuck{box-shadow:0 5px 20px rgba(35,72,112,.08);border-color:var(--line)}
    .nav-wrap{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:18px;color:var(--blue-dark);white-space:nowrap}
    .brand-mark{width:32px;height:32px;border-radius:10px;background:var(--blue);display:grid;place-items:center;color:#fff;position:relative}
    .brand-mark:after{content:"";width:0;height:0;border-top:7px solid transparent;border-bottom:7px solid transparent;border-left:10px solid #fff;margin-left:3px}
    .main-nav{display:flex;align-items:center;gap:5px}
    .main-nav a{padding:10px 14px;border-radius:10px;color:var(--muted);font-size:14px}
    .main-nav a:hover,.main-nav a.active{background:var(--pale);color:var(--blue-dark);font-weight:700}
    .main-nav a.active{box-shadow:inset 0 -3px var(--blue)}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:9px;padding:8px 12px;color:var(--blue)}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 24px;border-radius:11px;border:1px solid transparent;font-weight:700;font-size:15px;transition:.22s ease}
    .btn-primary{background:var(--blue);color:#fff}.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);color:#fff}
    .btn-secondary{border-color:var(--blue);color:var(--blue);background:#fff}.btn-secondary:hover{background:var(--pale);color:var(--blue-dark)}
    .btn-text{color:var(--blue);font-weight:700}.btn-text:hover{color:var(--blue-dark);letter-spacing:.2px}
    a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(24,167,201,.45);outline-offset:2px}
    .hero{padding:78px 0 86px;background:#fff;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;right:-90px;top:-120px;width:460px;height:460px;border:1px solid #dcecf9;border-radius:50%;box-shadow:0 0 0 28px rgba(234,243,252,.55),0 0 0 57px rgba(234,243,252,.3)}
    .hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center;position:relative}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before,.section-title:before{content:"";display:inline-block;width:22px;height:4px;background:var(--cyan);border-radius:4px}
    h1{font-size:48px;line-height:1.2;letter-spacing:-.04em;margin:18px 0 20px;color:var(--ink)}
    h2{font-size:32px;line-height:1.3;margin:12px 0;color:var(--ink)}
    h3{font-size:20px;line-height:1.4;margin:0 0 8px}
    .hero-copy>p{color:var(--muted);font-size:17px;max-width:590px;margin:0 0 27px}
    .button-row{display:flex;gap:12px;flex-wrap:wrap}
    .trust-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:25px}
    .badge{display:inline-flex;align-items:center;padding:5px 11px;border-radius:999px;background:var(--pale);color:var(--blue-dark);font-size:12px;font-weight:700}
    .badge.coral{background:#fff0ec;color:#c85037}.badge.green{background:#e9f7f1;color:#247b5c}
    .broadcast-panel{background:var(--pale);border:1px solid #d4e7f7;border-radius:20px;padding:15px;box-shadow:var(--shadow);transform:rotate(1deg)}
    .panel-head{display:flex;justify-content:space-between;align-items:center;padding:5px 4px 13px;font-size:12px;color:var(--muted);font-weight:700}
    .status-dot{width:8px;height:8px;background:var(--coral);display:inline-block;border-radius:50%;margin-right:6px}
    .panel-image{height:230px;border-radius:13px;position:relative;background:linear-gradient(135deg,rgba(23,105,210,.18),rgba(24,167,201,.2)),url("https://images.unsplash.com/photo-1519608487953-e999c86e7455?auto=format&fit=crop&w=900&q=80") center/cover}
    .panel-image:after{content:"查看内容提示";position:absolute;left:18px;bottom:16px;background:rgba(255,255,255,.92);color:var(--blue-dark);border-radius:8px;padding:5px 10px;font-size:12px;font-weight:700}
    .panel-list{display:grid;gap:8px;margin-top:12px}.panel-item{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 12px;display:flex;justify-content:space-between;font-size:13px}
    .panel-item span:last-child{color:var(--muted);font-size:12px}
    section{padding:90px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section-head p{max-width:610px;color:var(--muted);margin:0}
    .section-title:before{display:block;margin-bottom:15px}
    .service-layout{display:grid;grid-template-columns:230px 1fr;gap:22px}
    .side-menu{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:10px;height:max-content}
    .side-menu a{display:block;padding:14px 15px;border-radius:10px;color:var(--muted);font-weight:700;font-size:14px}
    .side-menu a:hover,.side-menu a.active{background:var(--pale);color:var(--blue-dark);border-left:3px solid var(--blue)}
    .service-main{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}.wide-card{grid-row:span 2}
    .service-card,.rank-card,.info-card,.step-card,.faq-box,.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .service-card{padding:25px}.service-card:hover,.rank-card:hover,.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
    .service-card p,.rank-card p,.info-card p{color:var(--muted);font-size:14px;margin:8px 0 14px}
    .card-link{color:var(--blue);font-size:14px;font-weight:800}.card-link:hover{color:var(--blue-dark)}
    .data-band{background:var(--blue-dark);color:#fff;padding:50px 0}.metrics{display:grid;grid-template-columns:repeat(4,1fr)}
    .metric{padding:8px 28px;border-right:1px solid rgba(255,255,255,.2)}.metric:first-child{padding-left:0}.metric:last-child{border:0}
    .metric strong{display:block;font-size:29px;color:#fff;line-height:1.3}.metric span{display:block;color:#c9def4;font-size:13px;margin-top:5px}
    .feature-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:18px}.feature-main{min-height:330px;display:grid;grid-template-columns:1fr 1fr;overflow:hidden}
    .visual{min-height:260px;background:linear-gradient(135deg,rgba(15,79,168,.1),rgba(24,167,201,.2)),url("https://images.unsplash.com/photo-1485846234645-a62644f84728?auto=format&fit=crop&w=900&q=80") center/cover}
    .feature-copy{padding:28px}.feature-copy p{color:var(--muted);font-size:14px}.mini-stack{display:grid;gap:18px}.rank-card{padding:19px;display:flex;gap:15px;align-items:center}.rank-no{font-size:25px;font-weight:800;color:var(--blue)}.rank-card p{margin:0;font-size:13px}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;position:relative}.step-card{padding:24px;position:relative}.step-number{font-size:13px;font-weight:800;color:var(--blue);margin-bottom:14px}.step-card p{color:var(--muted);font-size:14px;margin:0}
    .faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:55px}.faq-intro p{color:var(--muted)}.accordion{background:transparent}.accordion-item{border:1px solid var(--line)!important;border-radius:12px!important;margin-bottom:10px;overflow:hidden;background:#fff}.accordion-title{color:var(--ink);font-weight:700;font-size:15px;padding:18px 20px}.accordion-title:hover{background:var(--pale);color:var(--blue-dark)}.accordion-content{border-top:1px solid var(--line);color:var(--muted);font-size:14px;line-height:1.8;padding:16px 20px}
    .contact-section{background:var(--pale)}.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:22px}.contact-card{padding:30px}.contact-card>p{color:var(--muted)}.contact-points{margin:25px 0 0;padding:0;list-style:none;color:var(--muted);font-size:14px}.contact-points li{padding:8px 0;border-bottom:1px solid var(--line)}.contact-points li:before{content:"✓";color:var(--green);font-weight:800;margin-right:9px}
    label{display:block;font-size:13px;font-weight:700;color:var(--ink);margin-bottom:6px}label em{color:var(--coral);font-style:normal}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field-full{grid-column:1/-1}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:9px;background:#fff;padding:11px 13px;color:var(--ink);min-height:45px}textarea{min-height:105px;resize:vertical}input:focus,select:focus,textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(24,167,201,.12);outline:0}.form-note{font-size:12px;color:var(--muted);margin:12px 0}
    footer{background:#fff}.footer-main{padding:52px 0;display:grid;grid-template-columns:5fr 3fr 2fr;gap:40px}.footer-main h3{font-size:16px}.footer-main p,.footer-main a{font-size:13px;color:var(--muted)}.footer-main a{display:block;margin:6px 0}.footer-main a:hover{color:var(--blue)}.copyright{background:var(--pale);border-top:1px solid var(--line);padding:13px 0;font-size:12px;color:var(--muted)}
    @media(max-width:900px){h1{font-size:40px}.hero-grid{gap:35px}.main-nav{gap:0}.main-nav a{padding:9px}.service-layout,.faq-layout{grid-template-columns:1fr}.feature-grid{grid-template-columns:1fr}.contact-grid{grid-template-columns:1fr}}
    @media(max-width:700px){.top-actions a:not(:first-child){display:none}.topbar .container{padding:0 18px}.nav-wrap{min-height:68px}.brand{font-size:15px}.brand-mark{width:29px;height:29px}.menu-toggle{display:block}.main-nav{display:none;position:absolute;left:18px;right:18px;top:70px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.main-nav.is-open{display:flex}.main-nav a{min-height:46px;padding:12px 14px}.nav-wrap{position:relative}.hero{padding:55px 0 65px}.hero-grid{grid-template-columns:1fr}.hero-copy>p{font-size:16px}h1{font-size:34px}.broadcast-panel{transform:none}.section-head{display:block}.section-head p{margin-top:12px}.service-main,.feature-main{grid-template-columns:1fr}.wide-card{grid-row:auto}.metrics{grid-template-columns:1fr 1fr}.metric{padding:17px 12px;border-right:1px solid rgba(255,255,255,.2);border-bottom:1px solid rgba(255,255,255,.2)}.metric:first-child{padding-left:12px}.metric:nth-child(2){border-right:0}.metric:nth-child(3),.metric:nth-child(4){border-bottom:0}.steps{grid-template-columns:1fr}.footer-main{grid-template-columns:1fr 1fr;gap:25px}.footer-main>div:first-child{grid-column:1/-1}.form-grid{grid-template-columns:1fr}.field-full{grid-column:auto}.container{padding:0 19px}section{padding:65px 0}}
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category1 */
:root{
 --blue:#1769D2;--blue-dark:#0F4FA8;--cyan:#18A7C9;--coral:#F26B4B;
 --bg:#F5F8FC;--surface:#fff;--pale:#EAF3FC;--ink:#172436;--muted:#5E6D80;
 --line:#DDE7F1;--green:#2D9B72;--radius:16px;
 --shadow:0 10px 30px rgba(35,72,112,.10);
 --shadow-hover:0 16px 38px rgba(35,72,112,.16);
 --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.8}
a{color:inherit;text-decoration:none;transition:all .2s ease}
img{display:block;width:100%;height:100%;object-fit:cover}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.topbar{height:38px;background:var(--pale);border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
.top-actions{display:flex;gap:20px}.top-actions a:hover{color:var(--blue)}
.site-header{background:rgba(255,255,255,.97);position:sticky;top:0;z-index:20;border-bottom:1px solid transparent}
.site-header.is-stuck{box-shadow:0 5px 20px rgba(35,72,112,.08);border-color:var(--line)}
.nav-wrap{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:18px;color:var(--blue-dark);white-space:nowrap}
.brand-mark{width:32px;height:32px;border-radius:10px;background:var(--blue);display:grid;place-items:center;color:#fff;position:relative}
.brand-mark:after{content:"";width:0;height:0;border-top:7px solid transparent;border-bottom:7px solid transparent;border-left:10px solid #fff;margin-left:3px}
.main-nav{display:flex;align-items:center;gap:5px}
.main-nav a{padding:10px 14px;border-radius:10px;color:var(--muted);font-size:14px}
.main-nav a:hover,.main-nav a.active{background:var(--pale);color:var(--blue-dark);font-weight:700}
.main-nav a.active{box-shadow:inset 0 -3px var(--blue)}
.menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:9px;padding:8px 12px;color:var(--blue)}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 24px;border-radius:11px;border:1px solid transparent;font-weight:700;font-size:15px;transition:.22s ease}
.btn-primary{background:var(--blue);color:#fff}.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);color:#fff}
.btn-secondary{border-color:var(--blue);color:var(--blue);background:#fff}.btn-secondary:hover{background:var(--pale);color:var(--blue-dark)}
.btn-text{color:var(--blue);font-weight:700}.btn-text:hover{color:var(--blue-dark);padding-left:4px}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(24,167,201,.45);outline-offset:2px}
.page-hero{padding:58px 0 54px;background:#fff;border-bottom:1px solid var(--line)}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:18px}.breadcrumb a{color:var(--blue)}.breadcrumb span{margin:0 8px;color:#9aaabd}
.page-hero-grid{display:flex;align-items:end;justify-content:space-between;gap:40px}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.06em}
.eyebrow:before,.section-title:before{content:"";display:inline-block;width:22px;height:4px;background:var(--cyan);border-radius:4px}
h1{font-size:46px;line-height:1.2;margin:12px 0 15px;letter-spacing:-.03em}
.page-hero p{max-width:690px;color:var(--muted);margin:0}
.hero-meta{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.badge{display:inline-flex;align-items:center;padding:5px 11px;border-radius:999px;background:var(--pale);color:var(--blue-dark);font-size:12px;font-weight:700}
.badge.coral{background:#fff0ec;color:#c85037}.badge.green{background:#e9f7f1;color:#247b5c}
section{padding:78px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}
.section-title{font-size:32px;line-height:1.3;margin:0}.section-title:before{display:block;margin-bottom:14px}
.section-head p{max-width:600px;color:var(--muted);margin:0}
.switchbar{background:var(--surface);border-bottom:1px solid var(--line);overflow-x:auto}
.switchbar .container{display:flex;gap:8px;min-width:max-content}
.switchbar a{padding:17px 22px;color:var(--muted);font-weight:700;font-size:14px;border-bottom:3px solid transparent}
.switchbar a:hover,.switchbar a.active{color:var(--blue-dark);background:var(--pale);border-color:var(--blue)}
.directory-layout{display:grid;grid-template-columns:260px 1fr;gap:28px;align-items:start}
.filter-box,.content-card,.recommend-card,.faq-box,.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.filter-box{padding:21px;position:sticky;top:105px}
.filter-box h3{font-size:18px;margin:0 0 14px}.filter-box h4{font-size:13px;color:var(--muted);margin:22px 0 8px}
.filter-link{display:block;padding:9px 11px;border-radius:9px;color:var(--muted);font-size:14px}
.filter-link:hover,.filter-link.active{background:var(--pale);color:var(--blue-dark);font-weight:700}
.tip{padding:14px;background:#f8fbfe;border-radius:10px;font-size:13px;color:var(--muted);margin-top:20px}
.content-list{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.content-card{overflow:hidden;transition:.22s ease}.content-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.thumb{height:170px;position:relative;background:#dfeefa;overflow:hidden}
.thumb:after{content:"查看区域";position:absolute;inset:auto 14px 12px auto;background:rgba(15,79,168,.9);color:#fff;border-radius:999px;padding:3px 10px;font-size:12px}
.thumb .visual{height:100%;background:linear-gradient(135deg,#dceefe 0%,#88c5df 48%,#eff8ff 49%,#b7d7ef 100%);position:relative}
.visual:before{content:"";position:absolute;width:150px;height:150px;border:1px solid rgba(23,105,210,.35);border-radius:50%;left:15%;top:12%;box-shadow:35px 0 0 -1px rgba(24,167,201,.2)}
.card-body{padding:19px}.card-body h3{font-size:19px;line-height:1.4;margin:10px 0 6px}.card-body p{color:var(--muted);font-size:14px;line-height:1.7;margin:0 0 13px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:12px;border-top:1px solid var(--line);padding-top:12px}
.recommend{padding-top:10px}.recommend-card{display:grid;grid-template-columns:280px 1fr;overflow:hidden;background:var(--blue-dark);color:#fff}
.recommend-image{min-height:220px;background:linear-gradient(145deg,#5bb9d2,#1769d2 55%,#0f4fa8)}
.recommend-copy{padding:28px}.recommend-copy p{color:#d9e8f8;max-width:600px}.recommend-copy .badge{background:rgba(255,255,255,.16);color:#fff}
.pagination{display:flex;gap:8px;margin-top:25px;justify-content:center}.pagination a{width:42px;height:42px;display:grid;place-items:center;background:#fff;border:1px solid var(--line);border-radius:10px;color:var(--muted);font-weight:700}.pagination a:hover,.pagination a.current{background:var(--blue);border-color:var(--blue);color:#fff}.pagination a.disabled{opacity:.45;pointer-events:none}
.faq-section{background:var(--pale)}.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:55px}.faq-intro p{color:var(--muted)}
.accordion{background:transparent;margin:0}.accordion-item{border:1px solid var(--line)!important;border-radius:12px!important;margin-bottom:10px;overflow:hidden;background:#fff}
.accordion-title{color:var(--ink);font-weight:700;font-size:15px;padding:18px 20px}.accordion-title:hover{background:var(--pale);color:var(--blue-dark)}
.accordion-content{color:var(--muted);font-size:14px;line-height:1.8}
.cta-section{padding:70px 0}.cta-box{background:#fff;border:1px solid var(--line);border-radius:20px;padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:30px;box-shadow:var(--shadow)}
.cta-box h2{font-size:28px;margin:0 0 8px}.cta-box p{color:var(--muted);margin:0}
footer{background:#fff;border-top:1px solid var(--line)}.footer-main{display:grid;grid-template-columns:5fr 3fr 2fr;gap:45px;padding-top:48px;padding-bottom:45px}.footer-main p{color:var(--muted);font-size:14px;max-width:430px}.footer-main h3{font-size:15px;margin:0 0 13px}.footer-main>div>a:not(.brand){display:block;color:var(--muted);font-size:14px;margin:6px 0}.footer-main>div>a:not(.brand):hover{color:var(--blue)}
.copyright{background:var(--pale);color:var(--muted);font-size:12px;padding:14px 0}
@media(max-width:900px){.main-nav{gap:0}.main-nav a{padding:9px 9px}.page-hero-grid{align-items:start;flex-direction:column}.hero-meta{justify-content:flex-start}.directory-layout{grid-template-columns:220px 1fr}.content-list{grid-template-columns:1fr}.filter-box{top:90px}}
@media(max-width:768px){.top-actions a:first-child{display:none}.nav-wrap{min-height:68px}.menu-toggle{display:block}.main-nav{display:none;position:absolute;left:18px;right:18px;top:72px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.main-nav.is-open{display:flex}.main-nav a{min-height:46px;display:flex;align-items:center}.directory-layout,.faq-layout{grid-template-columns:1fr}.filter-box{position:static}.page-hero{padding:45px 0}.page-hero-grid{gap:20px}h1{font-size:36px}.section-title{font-size:27px}.section-head{display:block}.section-head p{margin-top:12px}.recommend-card{grid-template-columns:1fr}.recommend-image{min-height:150px}.cta-box{display:block;padding:30px}.cta-box .btn{margin-top:20px}.footer-main{grid-template-columns:1fr 1fr;gap:28px}.footer-main>div:first-child{grid-column:1/-1}}
@media(max-width:520px){.container{padding:0 19px}.topbar{height:36px}.topbar .container{font-size:12px}.top-actions{display:none}.brand{font-size:15px}.brand-mark{width:29px;height:29px}.page-hero h1{font-size:32px}.hero-meta{gap:7px}.switchbar a{padding:15px 16px}.content-card .thumb{height:155px}section{padding:60px 0}.footer-main{grid-template-columns:1fr}.copyright{line-height:1.6}.button-row .btn{width:100%}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category2 */
:root{
 --blue:#1769D2;
 --blue-dark:#0F4FA8;
 --cyan:#18A7C9;
 --coral:#F26B4B;
 --bg:#F5F8FC;
 --surface:#FFFFFF;
 --pale:#EAF3FC;
 --ink:#172436;
 --muted:#5E6D80;
 --line:#DDE7F1;
 --green:#2D9B72;
 --radius:16px;
 --radius-sm:11px;
 --shadow:0 10px 30px rgba(35,72,112,.10);
 --shadow-hover:0 16px 38px rgba(35,72,112,.16);
 --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
 --transition:220ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;
 background:var(--bg);
 color:var(--ink);
 font-family:var(--font);
 font-size:16px;
 line-height:1.8;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
body.menu-open{overflow:hidden}
h1,h2,h3,p,ul,ol{margin-top:0}
h1,h2,h3{color:var(--ink);font-weight:800;line-height:1.25;letter-spacing:-.02em}
h1{font-size:48px;margin-bottom:22px}
h2{font-size:34px;margin-bottom:14px}
h3{font-size:21px;margin-bottom:9px}
p{margin-bottom:18px}
a{color:inherit;text-decoration:none;transition:color var(--transition),background var(--transition),transform var(--transition),box-shadow var(--transition),border-color var(--transition)}
img,svg{display:block;max-width:100%}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
button:disabled,.btn.disabled{cursor:not-allowed;opacity:.52;transform:none!important;box-shadow:none!important}
::selection{background:#cfe6fb;color:var(--blue-dark)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.skip-link{
 position:fixed;left:18px;top:-80px;z-index:1000;
 background:var(--blue-dark);color:#fff;padding:10px 16px;border-radius:8px;
}
.skip-link:focus{top:12px}
.topbar{
 height:38px;background:var(--pale);border-bottom:1px solid var(--line);
 color:var(--muted);font-size:13px;
}
.topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px}
.top-domain{display:flex;align-items:center;gap:8px;white-space:nowrap}
.top-domain::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--green)}
.top-actions{display:flex;align-items:center;gap:18px}
.top-actions a:hover{color:var(--blue-dark)}
.site-header{
 position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);
 border-bottom:1px solid var(--line);box-shadow:0 5px 20px rgba(35,72,112,.06);
}
.nav-wrap{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:26px}
.brand{
 display:flex;align-items:center;gap:11px;color:var(--blue-dark);
 font-size:18px;font-weight:800;line-height:1.35;white-space:nowrap;
}
.brand-mark{
 width:32px;height:32px;flex:0 0 32px;border-radius:10px;background:var(--blue);
 display:grid;place-items:center;position:relative;box-shadow:0 7px 16px rgba(23,105,210,.22);
}
.brand-mark::after{
 content:"";width:0;height:0;border-top:7px solid transparent;
 border-bottom:7px solid transparent;border-left:10px solid #fff;margin-left:3px;
}
.main-nav{display:flex;align-items:center;gap:5px}
.main-nav a{
 min-height:44px;display:inline-flex;align-items:center;padding:9px 14px;
 border-radius:10px;color:var(--muted);font-size:14px;font-weight:600;
}
.main-nav a:hover,.main-nav a.active{background:var(--pale);color:var(--blue-dark)}
.main-nav a.active{font-weight:800;box-shadow:inset 0 -3px var(--blue)}
.main-nav .btn-primary{color:#fff;padding:0 20px;margin-left:5px}
.main-nav .btn-primary:hover{background:var(--blue-dark);color:#fff;box-shadow:none}
.menu-toggle{
 display:none;min-width:46px;min-height:44px;border:1px solid var(--line);
 border-radius:10px;background:#fff;color:var(--blue-dark);font-weight:800;
}
.menu-toggle:hover{background:var(--pale);border-color:#bfd7ee}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:46px;padding:0 24px;border:1px solid transparent;border-radius:11px;
 font-size:15px;font-weight:800;line-height:1.3;transition:all var(--transition);
}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(23,105,210,.20)}
.btn-primary:hover{background:var(--blue-dark);color:#fff;transform:translateY(-2px)}
.btn-secondary{background:#fff;border-color:var(--blue);color:var(--blue)}
.btn-secondary:hover{background:var(--pale);color:var(--blue-dark);transform:translateY(-2px)}
.btn-text{display:inline-flex;align-items:center;gap:7px;color:var(--blue);font-weight:800}
.btn-text::after{content:"→";transition:transform var(--transition)}
.btn-text:hover{color:var(--blue-dark)}
.btn-text:hover::after{transform:translateX(3px)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
 outline:3px solid rgba(24,167,201,.45);outline-offset:3px;
}
.breadcrumbs{
 margin:0 0 23px;padding:0;display:flex;align-items:center;gap:10px;
 list-style:none;color:var(--muted);font-size:13px;
}
.breadcrumbs li:not(:last-child)::after{content:"/";margin-left:10px;color:#9eacba}
.breadcrumbs a:hover{color:var(--blue)}
.theme-hero{
 position:relative;overflow:hidden;background:#fff;padding:66px 0 74px;
 border-bottom:1px solid var(--line);
}
.theme-hero::before{
 content:"";position:absolute;right:-145px;top:-220px;width:560px;height:560px;
 border-radius:50%;border:1px solid #d7e9f8;
 box-shadow:0 0 0 34px rgba(234,243,252,.68),0 0 0 74px rgba(234,243,252,.36);
}
.theme-hero::after{
 content:"";position:absolute;left:4%;bottom:14%;width:105px;height:85px;
 background-image:radial-gradient(#b9d9f2 1.2px,transparent 1.2px);
 background-size:13px 13px;opacity:.5;
}
.hero-layout{
 position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;
 gap:70px;align-items:center;
}
.eyebrow,.section-kicker{
 display:inline-flex;align-items:center;gap:9px;color:var(--blue);
 font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:14px;
}
.eyebrow::before,.section-kicker::before{
 content:"";width:23px;height:4px;border-radius:4px;background:var(--cyan);
}
.hero-summary{max-width:650px;color:var(--muted);font-size:17px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px}
.hero-notes{display:flex;flex-wrap:wrap;gap:9px}
.badge{
 display:inline-flex;align-items:center;gap:6px;padding:5px 11px;
 border-radius:999px;background:var(--pale);color:var(--blue-dark);
 font-size:12px;font-weight:800;line-height:1.5;
}
.badge.coral{background:#fff0ec;color:#bd4d34}
.badge.green{background:#e8f6f0;color:#247b5c}
.badge.cyan{background:#e8f8fb;color:#147e97}
.badge .status-dot{width:7px;height:7px;border-radius:50%;background:currentColor}
.preview-board{
 position:relative;background:#fff;border:1px solid var(--line);border-radius:20px;
 box-shadow:var(--shadow-hover);padding:16px;transform:rotate(1deg);
}
.preview-head{
 display:flex;align-items:center;justify-content:space-between;padding:2px 2px 13px;
 color:var(--muted);font-size:13px;
}
.preview-head strong{color:var(--ink)}
.preview-list{display:grid;gap:10px}
.preview-item{
 display:grid;grid-template-columns:44px 1fr auto;align-items:center;gap:13px;
 min-height:76px;padding:12px;border:1px solid var(--line);border-radius:13px;background:#fff;
 transition:all var(--transition);
}
.preview-item:hover{border-color:#b9d8f2;background:#fafdff;transform:translateX(-3px)}
.preview-number{
 width:44px;height:44px;display:grid;place-items:center;border-radius:12px;
 background:var(--pale);color:var(--blue);font-size:17px;font-weight:900;
}
.preview-item:first-child .preview-number{background:var(--blue);color:#fff}
.preview-item strong{display:block;font-size:15px;line-height:1.45}
.preview-item small{color:var(--muted);font-size:12px}
.preview-time{color:var(--green);font-size:12px;font-weight:800;white-space:nowrap}
.ticker-section{padding:22px 0;background:var(--pale);border-bottom:1px solid var(--line)}
.ticker{
 display:flex;align-items:center;gap:22px;overflow-x:auto;
 scrollbar-width:thin;scrollbar-color:#b9d3e8 transparent;
}
.ticker-label{
 flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;color:var(--blue-dark);
 font-size:13px;font-weight:900;padding-right:20px;border-right:1px solid #c8ddeb;
}
.live-dot{
 width:8px;height:8px;border-radius:50%;background:var(--coral);
 box-shadow:0 0 0 5px rgba(242,107,75,.12);
}
.ticker-item{
 flex:0 0 auto;display:flex;align-items:center;gap:8px;color:var(--muted);
 font-size:13px;white-space:nowrap;
}
.ticker-item::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan)}
section{padding:88px 0}
.section-head{
 display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:32px;
}
.section-head .section-copy{max-width:680px}
.section-head p{color:var(--muted);margin:0}
.section-title{position:relative;padding-left:17px}
.section-title::before{
 content:"";position:absolute;left:0;top:6px;width:4px;height:31px;
 background:var(--blue);border-radius:4px;
}
.order-list{display:grid;gap:14px}
.order-item{
 display:grid;grid-template-columns:70px 164px minmax(0,1fr) 140px;
 gap:20px;align-items:center;background:#fff;border:1px solid var(--line);
 border-radius:var(--radius);padding:14px 18px;box-shadow:0 7px 22px rgba(35,72,112,.07);
 transition:all var(--transition);
}
.order-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#bfd9ef}
.order-no{
 color:#a8bfd3;font-size:28px;font-weight:900;text-align:center;letter-spacing:-.04em;
}
.order-item:first-child .order-no{color:var(--blue)}
.media-thumb{
 position:relative;min-height:94px;border-radius:12px;overflow:hidden;
 background:
  linear-gradient(135deg,rgba(23,105,210,.18),rgba(24,167,201,.08)),
  radial-gradient(circle at 70% 35%,#d7eff9 0 16%,transparent 17%),
  linear-gradient(145deg,#c8dff3,#eef7fe 52%,#9bc8e6);
}
.media-thumb::before{
 content:"";position:absolute;width:54px;height:70px;right:23%;bottom:-12px;
 background:rgba(23,65,103,.55);border-radius:50% 50% 18% 18%;
}
.media-thumb::after{
 content:"›";position:absolute;left:50%;top:50%;width:42px;height:42px;
 display:grid;place-items:center;transform:translate(-50%,-50%) scale(.86);
 border-radius:50%;background:rgba(255,255,255,.94);color:var(--blue);
 font-size:29px;font-weight:700;opacity:0;transition:all var(--transition);
}
.order-item:hover .media-thumb::after,.theme-card:hover .media-thumb::after{
 opacity:1;transform:translate(-50%,-50%) scale(1);
}
.order-content{min-width:0}
.order-content h3{font-size:19px;margin:5px 0}
.order-content h3 a:hover{color:var(--blue)}
.order-content p{
 margin:0;color:var(--muted);font-size:14px;display:-webkit-box;
 -webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;
}
.order-meta{text-align:right;color:var(--muted);font-size:12px}
.order-meta strong{display:block;color:var(--green);font-size:13px;margin-bottom:4px}
.theme-matrix{background:#fff}
.theme-grid{
 display:grid;grid-template-columns:1fr 1fr .86fr;grid-template-rows:auto auto;
 gap:18px;
}
.theme-card{
 position:relative;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);
 background:var(--surface);box-shadow:var(--shadow);transition:all var(--transition);
}
.theme-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.theme-card.tall{grid-column:3;grid-row:1 / span 2}
.theme-card.wide{grid-column:1 / span 2}
.theme-card .media-thumb{min-height:190px;border-radius:0}
.theme-card.tall .media-thumb{min-height:310px}
.theme-body{padding:22px}
.theme-body p{
 color:var(--muted);font-size:14px;margin:8px 0 14px;display:-webkit-box;
 -webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden;
}
.theme-card.tall .theme-body{padding:25px}
.theme-tags{display:flex;gap:7px;flex-wrap:wrap}
.path-section{background:var(--pale)}
.path-list{display:grid;grid-template-columns:repeat(4,1fr);position:relative;gap:18px}
.path-list::before{
 content:"";position:absolute;left:9%;right:9%;top:27px;height:2px;background:#c7dfef;
}
.path-step{position:relative;text-align:center;z-index:1}
.path-number{
 width:55px;height:55px;display:grid;place-items:center;margin:0 auto 18px;
 border:6px solid var(--pale);border-radius:50%;background:var(--blue);
 color:#fff;font-size:14px;font-weight:900;box-shadow:0 5px 14px rgba(23,105,210,.2);
}
.path-step:nth-child(2) .path-number,.path-step:nth-child(4) .path-number{background:var(--cyan)}
.path-step h3{font-size:18px}
.path-step p{color:var(--muted);font-size:14px;margin:0 auto;max-width:230px}
.faq-section{background:var(--bg)}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.faq-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:24px;box-shadow:0 8px 24px rgba(35,72,112,.07);
 transition:all var(--transition);
}
.faq-card:hover{border-color:#bfd8ed;box-shadow:var(--shadow);transform:translateY(-2px)}
.faq-card h3{
 position:relative;font-size:18px;padding-left:30px;margin-bottom:10px;
}
.faq-card h3::before{
 content:"问";position:absolute;left:0;top:0;width:22px;height:22px;
 display:grid;place-items:center;border-radius:7px;background:var(--pale);
 color:var(--blue);font-size:12px;font-weight:900;
}
.faq-card p{color:var(--muted);font-size:14px;margin:0}
.contact-section{padding:70px 0 82px;background:var(--pale)}
.contact-card{
 overflow:hidden;display:grid;grid-template-columns:1.15fr .85fr;
 border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:var(--shadow);
}
.contact-copy{padding:42px}
.contact-copy p{max-width:650px;color:var(--muted)}
.contact-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:23px}
.contact-panel{
 padding:35px;background:#f8fbfe;border-left:1px solid var(--line);
 display:flex;flex-direction:column;justify-content:center;
}
.contact-list{list-style:none;padding:0;margin:0;display:grid;gap:15px}
.contact-list li{display:flex;align-items:flex-start;gap:11px;color:var(--muted);font-size:14px}
.contact-list li::before{
 content:"✓";flex:0 0 23px;width:23px;height:23px;display:grid;place-items:center;
 border-radius:50%;background:#e8f6f0;color:var(--green);font-size:12px;font-weight:900;
}
footer{background:#fff;border-top:1px solid var(--line)}
.footer-main{
 display:grid;grid-template-columns:5fr 3fr 2fr;gap:58px;padding-top:54px;padding-bottom:48px;
}
.footer-main .brand{margin-bottom:15px}
.footer-main p{max-width:510px;color:var(--muted);font-size:14px;margin:0}
.footer-main h3{font-size:15px;margin-bottom:15px}
.footer-main>div:not(:first-child){display:flex;flex-direction:column;align-items:flex-start}
.footer-main>div:not(:first-child) a{
 color:var(--muted);font-size:14px;padding:4px 0;
}
.footer-main>div:not(:first-child) a:hover{color:var(--blue);transform:translateX(3px)}
.copyright{
 padding:15px 0;background:var(--pale);border-top:1px solid var(--line);
 color:var(--muted);font-size:13px;
}
@media (max-width:1024px){
 h1{font-size:41px}
 h2{font-size:31px}
 section{padding:76px 0}
 .hero-layout{gap:42px}
 .brand{font-size:16px}
 .main-nav a{padding:9px 9px}
 .order-item{grid-template-columns:54px 140px minmax(0,1fr) 110px;gap:15px}
 .theme-grid{grid-template-columns:1fr 1fr}
 .theme-card.tall{grid-column:2;grid-row:1 / span 2}
 .theme-card.wide{grid-column:1}
 .footer-main{gap:36px}
}
@media (max-width:800px){
 .container{padding-left:20px;padding-right:20px}
 .topbar{height:36px}
 .top-actions a:first-child{display:none}
 .nav-wrap{min-height:70px;position:relative}
 .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
 .main-nav{
  display:none;position:absolute;left:0;right:0;top:70px;padding:13px;
  background:#fff;border:1px solid var(--line);border-radius:0 0 14px 14px;
  box-shadow:var(--shadow);flex-direction:column;align-items:stretch;
 }
 .main-nav.is-open{display:flex}
 .main-nav a{width:100%;min-height:46px;padding:11px 14px}
 .main-nav .btn-primary{margin:4px 0 0;justify-content:center}
 .theme-hero{padding:48px 0 58px}
 .hero-layout{grid-template-columns:1fr;gap:38px}
 .preview-board{max-width:600px;transform:none}
 .order-item{grid-template-columns:48px 132px minmax(0,1fr)}
 .order-meta{grid-column:3;text-align:left;display:flex;gap:10px;align-items:center}
 .order-meta strong{margin:0}
 .theme-grid{grid-template-columns:1fr 1fr}
 .theme-card.tall,.theme-card.wide{grid-column:auto;grid-row:auto}
 .theme-card.tall{grid-row:span 2}
 .path-list{grid-template-columns:1fr 1fr;gap:30px}
 .path-list::before{display:none}
 .faq-grid{grid-template-columns:1fr}
 .contact-card{grid-template-columns:1fr}
 .contact-panel{border-left:0;border-top:1px solid var(--line)}
 .footer-main{grid-template-columns:1fr 1fr}
 .footer-main>div:first-child{grid-column:1 / -1}
}
@media (max-width:640px){
 body{font-size:15px}
 h1{font-size:33px;line-height:1.22}
 h2{font-size:27px}
 h3{font-size:19px}
 .container{padding-left:18px;padding-right:18px}
 .topbar .container{gap:10px}
 .top-actions{gap:8px}
 .top-actions a:not(:last-child){display:none}
 .brand{max-width:245px;white-space:normal;font-size:14px}
 .brand-mark{width:30px;height:30px;flex-basis:30px}
 .theme-hero{padding-top:38px}
 .breadcrumbs{margin-bottom:18px}
 .hero-summary{font-size:16px}
 .hero-actions .btn{width:100%}
 .preview-item{grid-template-columns:40px 1fr}
 .preview-number{width:40px;height:40px}
 .preview-time{grid-column:2}
 .ticker-section{padding:17px 0}
 section{padding:58px 0}
 .section-head{display:block;margin-bottom:25px}
 .section-head .btn-text{margin-top:13px}
 .section-title{padding-left:14px}
 .order-item{grid-template-columns:42px minmax(0,1fr);padding:13px}
 .order-no{font-size:23px}
 .order-item .media-thumb{grid-column:2;min-height:140px}
 .order-content,.order-meta{grid-column:2}
 .order-meta{display:block}
 .theme-grid{grid-template-columns:1fr}
 .theme-card.tall,.theme-card.wide{grid-column:auto;grid-row:auto}
 .theme-card.tall .media-thumb,.theme-card .media-thumb{min-height:205px}
 .path-list{grid-template-columns:1fr}
 .path-step{text-align:left;padding-left:72px;min-height:80px}
 .path-number{position:absolute;left:0;top:0;margin:0}
 .path-step p{margin:0;max-width:none}
 .contact-copy,.contact-panel{padding:27px 22px}
 .contact-actions .btn{width:100%}
 .footer-main{grid-template-columns:1fr;gap:30px;padding-top:42px;padding-bottom:38px}
 .footer-main>div:first-child{grid-column:auto}
}
@media (max-width:400px){
 h1{font-size:30px}
 .brand{max-width:215px}
 .preview-board{padding:11px}
 .faq-card{padding:20px}
}
@media (prefers-reduced-motion:reduce){
 html{scroll-behavior:auto}
 *,*::before,*::after{animation:none!important;transition:none!important}
 .preview-board{transform:none}
}