/* roulang page: index */
:root{
    --bg-deep:#0b132b;--bg-dark:#0f1c2e;--bg-card:#14273e;--bg-elev:#1c304f;
    --accent:#ff7a00;--accent-light:#ff9333;--cyan:#00e5cc;
    --danger:#e85d75;--yellow:#ffb627;
    --text-heading:#eef4ff;--text-body:#b6c5dd;--text-muted:#788ca6;
    --border:rgba(255,255,255,0.08);
    --radius-lg:20px;--radius-md:12px;--radius-sm:8px;
    --shadow-card:0 12px 32px rgba(0,0,0,0.25);
    --shadow-hover:0 20px 48px rgba(0,0,0,0.4);
    --glow:0 0 24px rgba(255,122,0,0.35);
    --transition:0.25s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    background:var(--bg-deep);
    color:var(--text-body);
    font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color 0.2s ease}
img{display:block;max-width:100%;height:auto}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input{font-family:inherit;outline:none}
ul{list-style:none}

.container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}

.btn{
    display:inline-flex;align-items:center;justify-content:center;
    padding:12px 28px;border-radius:var(--radius-md);
    font-size:16px;font-weight:600;line-height:1.2;
    transition:all 0.25s ease;
    white-space:nowrap;
}
.btn-primary{
    background:var(--accent);color:#fff;
    box-shadow:var(--glow);
}
.btn-primary:hover{
    background:var(--accent-light);
    transform:translateY(-2px);
    box-shadow:0 0 32px rgba(255,122,0,0.5);
}
.btn-outline{
    background:transparent;color:var(--text-heading);
    border:1px solid rgba(255,255,255,0.2);
}
.btn-outline:hover{
    border-color:var(--accent);color:var(--accent);
    background:rgba(255,122,0,0.08);
    transform:translateY(-2px);
}
.btn-lg{padding:16px 36px;font-size:17px;border-radius:14px}
.btn:focus-visible,a:focus-visible{
    outline:3px solid var(--cyan);outline-offset:3px;
}

/* 头部导航 */
.site-header{
    position:sticky;top:0;z-index:100;
    background:rgba(11,19,43,0.82);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-bottom:1px solid var(--border);
    transition:background 0.3s ease,box-shadow 0.3s ease;
}
.site-header.scrolled{
    background:rgba(11,19,43,0.95);
    box-shadow:0 8px 30px rgba(0,0,0,0.3);
}
.header-inner{
    display:flex;align-items:center;justify-content:space-between;
    padding:14px 24px;max-width:1400px;margin:0 auto;
    gap:24px;
}
.brand{
    display:flex;align-items:center;gap:10px;flex-shrink:0;
}
.brand-mark{
    width:38px;height:38px;border-radius:10px;
    background:linear-gradient(135deg,var(--accent),#ffb347);
    display:flex;align-items:center;justify-content:center;
    color:#fff;font-size:18px;font-weight:800;
    box-shadow:0 4px 14px rgba(255,122,0,0.35);
}
.brand-name{
    font-size:19px;font-weight:700;color:var(--text-heading);
    letter-spacing:0.02em;white-space:nowrap;
}
.main-nav{
    display:flex;align-items:center;gap:8px;
}
.nav-link{
    padding:8px 18px;border-radius:var(--radius-sm);
    font-size:15px;font-weight:500;color:var(--text-body);
    transition:all 0.2s ease;
    position:relative;
}
.nav-link:hover{
    color:var(--text-heading);background:rgba(255,255,255,0.05);
}
.nav-link.active{
    color:var(--accent);font-weight:600;
}
.nav-link.active::after{
    content:'';position:absolute;bottom:-2px;left:50%;transform:translateX(-50%);
    width:20px;height:3px;border-radius:99px;background:var(--accent);
}
.header-actions{
    display:flex;align-items:center;gap:14px;flex-shrink:0;
}
.search-box{
    position:relative;display:flex;align-items:center;
}
.search-box input{
    width:210px;padding:9px 38px 9px 14px;
    border-radius:var(--radius-sm);
    background:rgba(255,255,255,0.07);
    border:1px solid var(--border);
    color:var(--text-heading);font-size:14px;
    transition:all 0.3s ease;
}
.search-box input::placeholder{color:var(--text-muted)}
.search-box input:focus{
    border-color:var(--cyan);
    box-shadow:0 0 18px rgba(0,229,204,0.2);
    background:rgba(255,255,255,0.1);
}
.search-box .fa-search{
    position:absolute;right:32px;color:var(--text-muted);font-size:13px;pointer-events:none;
}
.search-box kbd{
    position:absolute;right:10px;top:50%;transform:translateY(-50%);
    font-size:11px;color:var(--text-muted);
    background:rgba(255,255,255,0.1);
    border:1px solid var(--border);border-radius:4px;
    padding:2px 6px;
    font-family:inherit;
}
.login-link{
    font-size:14px;font-weight:600;color:var(--text-heading);
    padding:8px 14px;border-radius:var(--radius-sm);
    transition:all 0.2s ease;white-space:nowrap;
}
.login-link:hover{color:var(--accent);background:rgba(255,122,0,0.08)}
.mobile-toggle{
    display:none;flex-direction:column;gap:5px;
    padding:8px;border-radius:8px;
    background:rgba(255,255,255,0.05);
}
.mobile-toggle span{
    width:22px;height:2px;background:var(--text-heading);
    border-radius:2px;transition:all 0.3s ease;
}
.mobile-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.mobile-toggle.open span:nth-child(2){opacity:0}
.mobile-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{
    display:none;flex-direction:column;
    padding:20px 24px;
    background:var(--bg-dark);
    border-top:1px solid var(--border);
}
.mobile-menu a{
    padding:14px 0;font-size:16px;color:var(--text-body);
    border-bottom:1px solid rgba(255,255,255,0.04);
    font-weight:500;
}
.mobile-menu a.active{color:var(--accent)}
.mobile-menu a:hover{color:var(--text-heading)}
.mobile-menu .btn{margin-top:16px}

/* Hero */
.hero{
    position:relative;
    padding:80px 0 100px;
    background:var(--bg-deep);
    overflow:hidden;
}
.hero-bg{
    position:absolute;inset:0;z-index:0;
    background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    opacity:0.22;
}
.hero-grid-overlay{
    position:absolute;inset:0;z-index:0;
    background-image:radial-gradient(rgba(255,255,255,0.06) 1px,transparent 1px);
    background-size:32px 32px;
}
.hero-curve{
    position:absolute;z-index:0;border-radius:50%;
    border:2px solid rgba(255,255,255,0.07);
    pointer-events:none;
}
.hero-curve.c1{width:520px;height:520px;bottom:-220px;right:-80px}
.hero-curve.c2{width:360px;height:360px;bottom:-140px;right:60px;border-color:rgba(255,122,0,0.12)}
.hero-inner{
    position:relative;z-index:2;
    display:grid;grid-template-columns:1.1fr 0.9fr;gap:60px;
    align-items:center;
}
.hero-badge{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 16px;border-radius:999px;
    background:rgba(255,122,0,0.12);
    border:1px solid rgba(255,122,0,0.3);
    color:var(--accent);font-size:13px;font-weight:600;
    margin-bottom:24px;
    letter-spacing:0.04em;
}
.hero h1{
    font-size:48px;line-height:1.2;font-weight:700;
    color:var(--text-heading);
    letter-spacing:0.01em;
    margin-bottom:20px;
}
.hero h1 .accent-text{
    color:var(--accent);
}
.hero-sub{
    font-size:18px;line-height:1.8;color:var(--text-body);
    max-width:520px;margin-bottom:32px;
}
.hero-actions{
    display:flex;gap:16px;flex-wrap:wrap;margin-bottom:40px;
}
.hero-stats{
    display:flex;gap:36px;flex-wrap:wrap;
}
.stat-item{
    padding-left:16px;
    border-left:3px solid var(--accent);
}
.stat-num{
    display:block;
    font-size:34px;font-weight:700;color:var(--text-heading);
    font-variant-numeric:tabular-nums;
    line-height:1.2;
}
.stat-num em{
    font-style:normal;font-size:17px;color:var(--accent);font-weight:600;
    margin-left:2px;
}
.stat-label{
    font-size:13px;color:var(--text-muted);
    margin-top:4px;display:block;
}
.hero-visual{
    position:relative;
}
.hero-img-wrap{
    position:relative;border-radius:24px;overflow:hidden;
    border:1px solid rgba(255,255,255,0.12);
    box-shadow:0 24px 60px rgba(0,0,0,0.45);
}
.hero-img-wrap img{
    width:100%;height:460px;object-fit:cover;
}
.hero-img-wrap::after{
    content:'';position:absolute;inset:0;
    background:linear-gradient(to top,rgba(11,19,43,0.4),transparent 40%);
    pointer-events:none;
}
.hero-float-card{
    position:absolute;left:18px;bottom:24px;right:18px;
    padding:16px 20px;
    background:rgba(255,255,255,0.1);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border:1px solid rgba(255,255,255,0.16);
    border-radius:16px;
    display:flex;align-items:center;gap:14px;
}
.hero-float-card .float-icon{
    width:42px;height:42px;border-radius:12px;
    background:var(--accent);color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-size:18px;flex-shrink:0;
    box-shadow:0 4px 14px rgba(255,122,0,0.4);
}
.hero-float-card strong{
    display:block;color:var(--text-heading);font-size:15px;font-weight:600;
    line-height:1.4;
}
.hero-float-card small{
    color:var(--text-body);font-size:13px;line-height:1.4;
}
.hero-edge{
    position:absolute;bottom:-1px;left:0;right:0;height:60px;z-index:3;
    background:linear-gradient(to bottom right,transparent 49%,var(--bg-dark) 50%);
    pointer-events:none;
}

/* 区块通用 */
.section{
    padding:96px 0;
    background:var(--bg-dark);
}
.section-alt{background:var(--bg-deep)}
.section-head{
    text-align:center;max-width:720px;margin:0 auto 56px;
}
.section-tag{
    display:inline-block;
    padding:5px 16px;border-radius:999px;
    background:rgba(0,229,204,0.1);
    border:1px solid rgba(0,229,204,0.25);
    color:var(--cyan);font-size:13px;font-weight:600;
    letter-spacing:0.05em;margin-bottom:16px;
}
.section-title{
    font-size:36px;font-weight:700;color:var(--text-heading);
    line-height:1.3;margin-bottom:14px;
    letter-spacing:0.01em;
}
.section-sub{
    font-size:16px;line-height:1.75;color:var(--text-muted);
}

/* 服务区 */
.services-grid{
    display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.service-card{
    background:var(--bg-card);
    border:1px solid var(--border);
    border-radius:var(--radius-lg);
    overflow:hidden;
    transition:all 0.3s ease;
    display:flex;flex-direction:column;
}
.service-card:hover{
    transform:translateY(-6px);
    box-shadow:var(--shadow-hover);
    border-color:rgba(255,122,0,0.3);
}
.service-img{
    position:relative;height:150px;overflow:hidden;
}
.service-img img{
    width:100%;height:100%;object-fit:cover;
    transition:transform 0.5s ease;
}
.service-card:hover .service-img img{transform:scale(1.06)}
.service-img::after{
    content:'';position:absolute;inset:0;
    background:linear-gradient(to top,rgba(20,39,62,0.8),transparent 50%);
    pointer-events:none;
}
.service-icon{
    position:absolute;bottom:-20px;left:20px;z-index:2;
    width:48px;height:48px;border-radius:14px;
    background:var(--accent);color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-size:20px;
    box-shadow:0 8px 20px rgba(255,122,0,0.4);
    border:3px solid var(--bg-card);
}
.service-body{
    padding:28px 20px 20px;
    flex:1;
    display:flex;flex-direction:column;
}
.service-body h3{
    font-size:19px;font-weight:600;color:var(--text-heading);
    margin-bottom:10px;
}
.service-body p{
    font-size:14px;line-height:1.7;color:var(--text-muted);
    flex:1;margin-bottom:14px;
}
.service-link{
    font-size:14px;font-weight:600;color:var(--accent);
    display:inline-flex;align-items:center;gap:6px;
    transition:gap 0.2s ease;
}
.service-link:hover{gap:10px}
.service-link .fa-arrow-right{font-size:12px}

/* 最新信息 */
.news-grid{
    display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.news-card{
    background:var(--bg-card);
    border:1px solid var(--border);
    border-radius:var(--radius-lg);
    overflow:hidden;
    transition:all 0.3s ease;
}
.news-card:hover{
    transform:translateY(-6px);
    box-shadow:var(--shadow-hover);
    border-color:rgba(255,122,0,0.35);
}
.news-card-link{display:block;height:100%}
.news-thumb{
    position:relative;height:190px;overflow:hidden;
    background:var(--bg-elev);
}
.news-thumb img{
    width:100%;height:100%;object-fit:cover;
    transition:transform 0.5s ease;
}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-cat{
    position:absolute;top:12px;left:12px;
    padding:5px 12px;border-radius:999px;
    background:var(--accent);color:#fff;
    font-size:12px;font-weight:600;
    box-shadow:0 4px 12px rgba(255,122,0,0.3);
}
.news-body{
    padding:20px;
    display:flex;flex-direction:column;
    gap:10px;
}
.news-body h3{
    font-size:17px;font-weight:600;color:var(--text-heading);
    line-height:1.5;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
    overflow:hidden;
    transition:color 0.2s ease;
}
.news-card:hover .news-body h3{color:var(--accent)}
.news-body p{
    font-size:14px;color:var(--text-muted);line-height:1.7;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
    overflow:hidden;
}
.news-meta{
    display:flex;justify-content:space-between;align-items:center;
    margin-top:auto;
    padding-top:12px;
    border-top:1px solid rgba(255,255,255,0.06);
}
.news-meta time{
    font-size:13px;color:var(--text-muted);
    font-variant-numeric:tabular-nums;
}
.read-more{
    font-size:13px;font-weight:600;color:var(--cyan);
    display:inline-flex;align-items:center;gap:4px;
}
.news-empty{
    grid-column:1/-1;
    border:2px dashed rgba(255,255,255,0.15);
    border-radius:var(--radius-lg);
    padding:60px 20px;
    text-align:center;
    background:rgba(255,255,255,0.02);
}
.news-empty i{
    font-size:40px;color:var(--text-muted);margin-bottom:12px;
}
.news-empty p{
    color:var(--text-muted);font-size:16px;
}

/* 评价轮播 */
.testimonials-wrap{
    position:relative;
}
.testimonials-track{
    display:flex;gap:24px;
    overflow-x:auto;
    scroll-snap-type:x mandatory;
    padding:8px 4px 32px;
    scrollbar-width:none;
}
.testimonials-track::-webkit-scrollbar{display:none}
.testimonial-card{
    flex:0 0 360px;
    scroll-snap-align:start;
    background:var(--bg-card);
    border:1px solid var(--border);
    border-radius:var(--radius-lg);
    padding:28px;
    transition:all 0.3s ease;
    display:flex;flex-direction:column;
    gap:16px;
}
.testimonial-card:hover{
    box-shadow:var(--shadow-hover);
    transform:translateY(-4px);
}
.t-stars{
    color:var(--yellow);font-size:15px;
    letter-spacing:2px;
}
.t-quote{
    font-size:15px;line-height:1.8;color:var(--text-body);
    flex:1;
}
.t-author{
    display:flex;align-items:center;gap:14px;
    padding-top:16px;
    border-top:1px solid rgba(255,255,255,0.06);
}
.t-avatar{
    width:44px;height:44px;border-radius:50%;
    background:linear-gradient(135deg,var(--cyan),var(--bg-elev));
    display:flex;align-items:center;justify-content:center;
    color:#04121c;font-weight:700;font-size:17px;
    flex-shrink:0;
}
.t-author-name{
    font-size:14px;font-weight:600;color:var(--text-heading);
}
.t-author-role{
    font-size:12px;color:var(--text-muted);
}
.t-navs{
    display:flex;justify-content:center;gap:14px;
    margin-top:8px;
}
.t-nav{
    width:42px;height:42px;border-radius:50%;
    background:var(--bg-card);
    border:1px solid var(--border);
    color:var(--text-body);
    display:flex;align-items:center;justify-content:center;
    transition:all 0.25s ease;
}
.t-nav:hover{
    border-color:var(--accent);color:var(--accent);
    background:rgba(255,122,0,0.1);
}
.t-dots{
    display:flex;gap:8px;align-items:center;justify-content:center;margin-top:16px;
}
.t-dot{
    width:8px;height:8px;border-radius:50%;
    background:rgba(255,255,255,0.2);
    transition:all 0.3s ease;
}
.t-dot.active{background:var(--accent);width:24px;border-radius:99px}

/* 保障条 */
.guarantee-bar{
    background:linear-gradient(90deg,rgba(255,122,0,0.15),rgba(0,229,204,0.1));
    border:1px solid rgba(255,255,255,0.08);
    border-radius:999px;
    padding:28px 40px;
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:24px;
}
.guarantee-item{
    display:flex;align-items:center;gap:16px;
    justify-content:center;
}
.guarantee-icon{
    width:52px;height:52px;border-radius:16px;
    background:var(--bg-card);
    border:1px solid var(--border);
    display:flex;align-items:center;justify-content:center;
    font-size:22px;color:var(--accent);
    flex-shrink:0;
}
.guarantee-item:nth-child(2) .guarantee-icon{color:var(--cyan)}
.guarantee-item:nth-child(3) .guarantee-icon{color:var(--yellow)}
.guarantee-item:nth-child(4) .guarantee-icon{color:#7ce7a8}
.guarantee-text strong{
    display:block;font-size:16px;color:var(--text-heading);
    margin-bottom:2px;
}
.guarantee-text span{
    font-size:13px;color:var(--text-muted);
}

/* FAQ */
.faq-list{
    max-width:800px;margin:0 auto;
    display:flex;flex-direction:column;gap:14px;
}
.faq-item{
    background:var(--bg-card);
    border:1px solid var(--border);
    border-radius:16px;
    overflow:hidden;
    transition:all 0.3s ease;
}
.faq-item:hover{border-color:rgba(255,255,255,0.14)}
.faq-item.open{
    background:rgba(255,255,255,0.05);
    border-color:rgba(255,122,0,0.35);
}
.faq-question{
    width:100%;
    display:flex;align-items:center;gap:16px;
    padding:20px 24px;
    text-align:left;
    font-size:16px;font-weight:600;color:var(--text-heading);
}
.faq-q-num{
    font-size:13px;font-weight:700;color:var(--accent);
    background:rgba(255,122,0,0.12);
    border-radius:8px;
    padding:4px 10px;
    flex-shrink:0;
    font-variant-numeric:tabular-nums;
}
.faq-toggle{
    margin-left:auto;flex-shrink:0;
    width:28px;height:28px;border-radius:50%;
    background:rgba(255,255,255,0.08);
    display:flex;align-items:center;justify-content:center;
    color:var(--text-heading);
    font-size:16px;
    transition:transform 0.3s ease,background 0.3s ease;
}
.faq-item.open .faq-toggle{
    transform:rotate(45deg);
    background:var(--accent);color:#fff;
}
.faq-answer{
    max-height:0;overflow:hidden;
    transition:max-height 0.35s ease,padding 0.35s ease;
    padding:0 24px;
    font-size:15px;line-height:1.8;color:var(--text-muted);
}
.faq-item.open .faq-answer{
    max-height:500px;
    padding-bottom:22px;
}

/* CTA */
.cta-section{
    position:relative;
    background:var(--bg-deep);
    overflow:hidden;
    padding:110px 0;
}
.cta-bg{
    position:absolute;inset:0;
    background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;
    opacity:0.18;
}
.cta-overlay{
    position:absolute;inset:0;
    background:linear-gradient(135deg,rgba(11,19,43,0.85),rgba(20,39,62,0.6));
}
.cta-inner{
    position:relative;z-index:2;
    text-align:center;
    max-width:680px;margin:0 auto;
}
.cta-inner h2{
    font-size:40px;font-weight:700;color:var(--text-heading);
    line-height:1.3;margin-bottom:16px;
}
.cta-inner p{
    font-size:17px;color:var(--text-body);
    margin-bottom:36px;
    line-height:1.8;
}
.cta-actions{
    display:flex;gap:16px;justify-content:center;flex-wrap:wrap;
}
.cta-actions .btn-primary{
    padding:16px 40px;font-size:17px;
}
.cta-actions .btn-outline{
    padding:16px 36px;font-size:17px;
}

/* 页脚 */
.site-footer{
    background:#071023;
    border-top:1px solid var(--border);
    padding-top:64px;
}
.footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1.2fr;
    gap:48px;
    padding-bottom:48px;
}
.footer-brand .brand-name{
    font-size:20px;margin-bottom:12px;
}
.footer-brand p{
    font-size:14px;line-height:1.8;color:var(--text-muted);
    max-width:300px;
}
.footer-col h4{
    font-size:16px;font-weight:600;color:var(--text-heading);
    margin-bottom:20px;
    position:relative;
    padding-bottom:10px;
}
.footer-col h4::after{
    content:'';position:absolute;left:0;bottom:0;
    width:28px;height:2px;background:var(--accent);
    border-radius:2px;
}
.footer-col ul li{
    margin-bottom:10px;
}
.footer-col ul a{
    font-size:14px;color:var(--text-muted);
    transition:color 0.2s ease,padding-left 0.2s ease;
}
.footer-col ul a:hover{
    color:var(--accent);padding-left:6px;
}
.footer-col ul li i{
    color:var(--accent);font-size:13px;margin-right:8px;
}
.footer-bottom{
    border-top:1px solid rgba(255,255,255,0.06);
    padding:20px 0;
    text-align:center;
}
.footer-bottom p{
    font-size:13px;color:var(--text-muted);
}

/* 响应式 */
@media (max-width:1024px){
    .header-inner{padding:14px 20px}
    .main-nav{display:none}
    .header-actions .search-box{display:none}
    .header-actions .login-link{display:none}
    .header-actions .btn{display:none}
    .mobile-toggle{display:flex}
    .mobile-menu.show{display:flex}
    .hero{padding:60px 0 80px}
    .hero h1{font-size:38px}
    .hero-inner{grid-template-columns:1fr;gap:48px}
    .hero-visual{order:-1}
    .hero-img-wrap img{height:340px}
    .services-grid{grid-template-columns:repeat(2,1fr)}
    .news-grid{grid-template-columns:repeat(2,1fr)}
    .guarantee-bar{grid-template-columns:repeat(2,1fr);border-radius:24px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
    .section{padding:64px 0}
    .section-title{font-size:30px}
    .hero h1{font-size:31px}
    .hero-sub{font-size:16px}
    .hero-stats{gap:20px}
    .stat-num{font-size:28px}
    .services-grid{grid-template-columns:1fr 1fr;gap:16px}
    .service-img{height:120px}
    .service-body{padding:24px 16px 16px}
    .news-grid{grid-template-columns:1fr 1fr;gap:16px}
    .news-thumb{height:150px}
    .testimonial-card{flex:0 0 280px}
    .guarantee-bar{grid-template-columns:1fr;padding:24px}
    .guarantee-item{justify-content:flex-start}
    .footer-grid{grid-template-columns:1fr;gap:28px}
    .cta-inner h2{font-size:30px}
}
@media (max-width:520px){
    .container{padding-left:16px;padding-right:16px}
    .brand-name{font-size:16px}
    .brand-mark{width:32px;height:32px;font-size:15px;border-radius:8px}
    .hero{padding:48px 0 72px}
    .hero h1{font-size:27px}
    .hero-actions .btn{width:100%;justify-content:center}
    .hero-stats{flex-direction:column;gap:16px}
    .services-grid{grid-template-columns:1fr}
    .news-grid{grid-template-columns:1fr}
    .news-thumb{height:180px}
    .testimonial-card{flex:0 0 260px}
    .cta-actions .btn{width:100%}
    .footer-grid{grid-template-columns:1fr}
}

/* roulang page: category1 */
:root {
            --bg-primary: #0b132b;
            --bg-secondary: #14273e;
            --bg-card: #1c304f;
            --bg-deep: #070d1f;
            --accent: #ff7a00;
            --accent-hover: #ff9340;
            --teal: #17c3b2;
            --red: #e85d75;
            --yellow: #ffb627;
            --text-heading: #eef4ff;
            --text-body: #b6c5dd;
            --text-muted: #788ca6;
            --border-white: rgba(255, 255, 255, 0.08);
            --radius-card: 18px;
            --radius-btn: 10px;
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 20px 48px rgba(0, 0, 0, 0.4);
            --glow-accent: 0 0 24px rgba(255, 122, 0, 0.4);
            --glow-teal: 0 0 20px rgba(23, 195, 178, 0.35);
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-body);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 96px 0;
        }

        .section-sm {
            padding: 64px 0;
        }

        .text-gradient {
            background: linear-gradient(135deg, #ff7a00 0%, #ffb627 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: none;
            transition: all 0.3s ease;
            box-shadow: var(--glow-accent);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(255, 122, 0, 0.55);
            color: #fff;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--text-heading);
            font-weight: 500;
            font-size: 16px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: all 0.3s ease;
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(255, 122, 0, 0.08);
            transform: translateY(-2px);
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-white);
            box-shadow: var(--shadow-card);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 122, 0, 0.2);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            line-height: 1.4;
        }

        .badge-accent {
            background: rgba(255, 122, 0, 0.15);
            color: #ff9340;
        }

        .badge-teal {
            background: rgba(23, 195, 178, 0.12);
            color: var(--teal);
        }

        .badge-yellow {
            background: rgba(255, 182, 39, 0.12);
            color: var(--yellow);
        }

        .section-title {
            font-size: 38px;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: 0.02em;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.75;
        }

        .stat-number {
            font-family: 'Courier New', monospace;
            font-variant-numeric: tabular-nums;
            font-weight: 700;
            font-size: 36px;
            color: var(--text-heading);
            line-height: 1.2;
        }

        /* Navigation */
        .main-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 19, 43, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-white);
            transition: background 0.3s ease;
        }

        .main-header.scrolled {
            background: rgba(11, 19, 43, 0.96);
        }

        .main-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 32px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-mark {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, #ff7a00, #ffb627);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            box-shadow: var(--glow-accent);
        }

        .brand-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            color: var(--text-muted);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 8px;
            position: relative;
            transition: all 0.3s ease;
        }

        .nav-link:hover {
            color: var(--text-heading);
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-link.active {
            color: var(--text-heading);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--accent);
            box-shadow: 0 0 8px rgba(255, 122, 0, 0.5);
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }

        .search-box {
            position: relative;
            display: flex;
            align-items: center;
        }

        .search-box input {
            width: 180px;
            padding: 8px 36px 8px 14px;
            background: rgba(28, 48, 79, 0.6);
            border: 1px solid var(--border-white);
            border-radius: 10px;
            color: var(--text-heading);
            font-size: 14px;
            outline: none;
            transition: all 0.3s ease;
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .search-box input:focus {
            border-color: var(--teal);
            box-shadow: var(--glow-teal);
            width: 220px;
            background: rgba(28, 48, 79, 0.9);
        }

        .search-icon {
            position: absolute;
            right: 12px;
            color: var(--text-muted);
            font-size: 14px;
            pointer-events: none;
        }

        .kbd-hint {
            position: absolute;
            right: 32px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 5px;
            padding: 1px 6px;
            font-size: 11px;
            color: var(--text-muted);
            pointer-events: none;
            font-family: 'Courier New', monospace;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            padding: 8px 20px;
            border-radius: 8px;
            transition: all 0.3s ease;
            box-shadow: var(--glow-accent);
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            color: #fff;
        }

        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid var(--border-white);
            background: transparent;
            color: var(--text-heading);
            font-size: 18px;
            align-items: center;
            justify-content: center;
        }

        /* Hero */
        .page-hero {
            position: relative;
            padding: 72px 0 88px;
            background: linear-gradient(180deg, #0b132b 0%, #0f1c2e 100%);
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 800px;
            height: 800px;
            border-radius: 50%;
            border: 3px solid rgba(255, 122, 0, 0.08);
            box-shadow: 0 0 0 120px rgba(255, 122, 0, 0.03), 0 0 0 240px rgba(255, 122, 0, 0.02);
            pointer-events: none;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--bg-primary);
            clip-path: polygon(0 0, 100% 100%, 100% 100%, 0% 100%);
            z-index: 1;
        }

        .hero-bg-img {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            object-fit: cover;
            width: 100%;
            height: 100%;
            opacity: 0.12;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 760px;
        }

        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .hero-breadcrumb a:hover {
            color: var(--accent);
        }

        .hero-breadcrumb i {
            font-size: 12px;
            color: var(--text-muted);
        }

        .page-hero h1 {
            font-size: 48px;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: 0.02em;
            line-height: 1.25;
            margin-bottom: 16px;
        }

        .hero-subtitle {
            font-size: 18px;
            color: var(--text-body);
            line-height: 1.75;
            max-width: 640px;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid var(--border-white);
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .hero-stat-item .stat-label {
            font-size: 13px;
            color: var(--text-muted);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-white);
            backdrop-filter: blur(8px);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 13px;
            color: var(--text-body);
            margin-bottom: 24px;
        }

        .hero-badge i {
            color: var(--teal);
        }

        /* 服务范围 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-white);
            padding: 32px 28px;
            transition: all 0.4s ease;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), transparent);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .service-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 21px;
            color: var(--accent);
            background: rgba(255, 122, 0, 0.1);
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .service-card p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 16px;
        }

        .service-link {
            color: var(--text-body);
            font-size: 14px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all 0.3s ease;
        }

        .service-link:hover {
            color: var(--accent);
        }

        /* 赛事内容 */
        .event-showcase {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }

        .event-visual {
            position: relative;
            border-radius: 22px;
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            border: 1px solid var(--border-white);
        }

        .event-visual img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .event-visual:hover img {
            transform: scale(1.03);
        }

        .event-visual-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px;
            background: linear-gradient(180deg, transparent, rgba(11, 19, 43, 0.92));
            color: var(--text-heading);
            font-size: 16px;
            font-weight: 500;
        }

        .event-feature-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .event-feature {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 20px;
            border-radius: 14px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-white);
            transition: all 0.3s ease;
        }

        .event-feature:hover {
            background: rgba(255, 122, 0, 0.05);
            border-color: rgba(255, 122, 0, 0.2);
        }

        .event-feature-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(23, 195, 178, 0.12);
            color: var(--teal);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }

        .event-feature h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 4px;
        }

        .event-feature p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* 案例卡片 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .case-card {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-white);
            box-shadow: var(--shadow-card);
            transition: all 0.4s ease;
        }

        .case-card:hover {
            transform: translateY(-4px) scale(1.01);
            box-shadow: var(--shadow-hover);
        }

        .case-card-image {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

        .case-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .case-card:hover .case-card-image img {
            transform: scale(1.05);
        }

        .case-card-image::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(180deg, transparent, rgba(11, 19, 43, 0.8));
        }

        .case-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
        }

        .case-content {
            padding: 24px;
        }

        .case-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .case-content p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 16px;
        }

        .case-stats {
            display: flex;
            gap: 20px;
            padding-top: 16px;
            border-top: 1px solid var(--border-white);
        }

        .case-stat {
            display: flex;
            flex-direction: column;
        }

        .case-stat-value {
            font-family: 'Courier New', monospace;
            font-variant-numeric: tabular-nums;
            font-size: 24px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.3;
        }

        .case-stat-label {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 流程 */
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: step;
        }

        .flow-step {
            text-align: center;
            padding: 36px 24px;
            background: var(--bg-secondary);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-white);
            position: relative;
            transition: all 0.4s ease;
        }

        .flow-step:hover {
            transform: translateY(-4px);
            border-color: rgba(255, 122, 0, 0.3);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
        }

        .flow-step-number {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: linear-gradient(135deg, #ff7a00, #ffb627);
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: 'Courier New', monospace;
            font-variant-numeric: tabular-nums;
            box-shadow: var(--glow-accent);
        }

        .flow-step h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 8px;
        }

        .flow-step p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-section {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-white);
            border-radius: 16px;
            margin-bottom: 16px;
            overflow: hidden;
            background: var(--bg-secondary);
            transition: border-color 0.3s ease;
        }

        .faq-item[open] {
            border-color: rgba(255, 122, 0, 0.25);
            background: rgba(255, 255, 255, 0.05);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            list-style: none;
        }

        .faq-question::-webkit-details-marker {
            display: none;
        }

        .faq-number {
            font-family: 'Courier New', monospace;
            font-variant-numeric: tabular-nums;
            color: var(--accent);
            font-size: 14px;
            font-weight: 700;
            background: rgba(255, 122, 0, 0.1);
            padding: 4px 8px;
            border-radius: 6px;
        }

        .faq-toggle-icon {
            margin-left: auto;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--text-muted);
            transition: all 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item[open] .faq-toggle-icon {
            transform: rotate(45deg);
            color: var(--accent);
            border-color: rgba(255, 122, 0, 0.3);
        }

        .faq-answer {
            padding: 0 24px 20px 54px;
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-body);
        }

        /* 保障条 */
        .guarantee-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            background: var(--bg-secondary);
            border-radius: 20px;
            padding: 36px 40px;
            border: 1px solid var(--border-white);
        }

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .guarantee-item i {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(255, 122, 0, 0.1);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
            flex-shrink: 0;
        }

        .guarantee-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 2px;
        }

        .guarantee-item p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* CTA */
        .cta-section {
            position: relative;
            padding: 96px 0;
            background: var(--bg-deep);
            overflow: hidden;
            clip-path: polygon(0 8%, 100% 0, 100% 92%, 0 100%);
        }

        .cta-bg {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            object-fit: cover;
            width: 100%;
            height: 100%;
            opacity: 0.15;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 40px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .cta-content p {
            font-size: 17px;
            color: var(--text-body);
            margin-bottom: 36px;
            line-height: 1.75;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* 页脚 */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-white);
            padding-top: 72px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-top: 16px;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 20px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-col ul li {
            font-size: 14px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color 0.3s ease;
        }

        .footer-col ul li i {
            color: var(--accent);
            font-size: 13px;
            width: 16px;
            text-align: center;
        }

        .footer-col ul li a {
            color: var(--text-muted);
            transition: all 0.3s ease;
        }

        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 24px 0;
        }

        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 空态 */
        .empty-state {
            border: 1px dashed rgba(255, 255, 255, 0.15);
            border-radius: 16px;
            padding: 48px 24px;
            text-align: center;
            background: rgba(255, 255, 255, 0.02);
        }

        .empty-state i {
            font-size: 36px;
            color: var(--text-muted);
            margin-bottom: 12px;
            display: block;
        }

        .empty-state p {
            color: var(--text-muted);
            font-size: 15px;
        }

        /* 焦点可见性 */
        :focus-visible {
            outline: 2px solid var(--teal) !important;
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .case-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .guarantee-bar {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }

            .nav-links {
                display: none;
            }

            .search-box {
                display: none;
            }

            .mobile-toggle {
                display: flex;
            }

            .page-hero {
                padding: 48px 0 64px;
            }

            .page-hero h1 {
                font-size: 34px;
            }

            .hero-stats {
                flex-wrap: wrap;
                gap: 24px;
            }

            .event-showcase {
                grid-template-columns: 1fr;
            }

            .section-title {
                font-size: 28px;
            }

            .cta-section {
                clip-path: polygon(0 3%, 100% 0, 100% 97%, 0 100%);
                padding: 64px 0;
            }

            .cta-content h2 {
                font-size: 30px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .brand-name {
                font-size: 17px;
            }

            .nav-cta {
                padding: 8px 14px;
                font-size: 13px;
            }

            .services-grid {
                grid-template-columns: 1fr;
            }

            .case-grid {
                grid-template-columns: 1fr;
            }

            .flow-steps {
                grid-template-columns: 1fr;
            }

            .guarantee-bar {
                grid-template-columns: 1fr;
                padding: 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                text-align: center;
                width: 100%;
            }

            .page-hero h1 {
                font-size: 30px;
            }

            .hero-subtitle,
            .section-subtitle {
                font-size: 16px;
            }
        }

/* roulang page: article */
:root {
        --bg: #0b132b;
        --bg-panel: #14273e;
        --bg-panel2: #1c304f;
        --accent: #ff7a00;
        --accent-hover: #ff9533;
        --cyan: #00e5cc;
        --ink: #eef4ff;
        --body: #b6c5dd;
        --mute: #788ca6;
        --border: rgba(255, 255, 255, 0.08);
        --radius: 18px;
        --radius-sm: 10px;
        --shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
        --shadow-hover: 0 20px 48px rgba(0, 0, 0, 0.4);
    }

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        background: var(--bg);
        color: var(--body);
        font-family: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
        line-height: 1.75;
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
        overflow-x: hidden;
    }
    a {
        color: var(--body);
        text-decoration: none;
        transition: color .25s, border-color .25s, background .25s;
    }
    img {
        display: block;
        max-width: 100%;
    }
    button {
        font-family: inherit;
        border: none;
        cursor: pointer;
        background: none;
    }
    input {
        font-family: inherit;
        border: none;
        outline: none;
    }
    ul,
    ol {
        list-style: none;
    }
    :focus-visible {
        outline: 2px solid var(--cyan);
        outline-offset: 3px;
        border-radius: 4px;
    }
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }

    /* ===== Header / Nav ===== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 60;
        background: rgba(11, 19, 43, 0.82);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--border);
        transition: background .35s, box-shadow .35s;
    }
    .site-header.scrolled {
        background: rgba(11, 19, 43, 0.96);
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.28);
    }
    .header-inner {
        display: flex;
        align-items: center;
        gap: 28px;
        height: 74px;
    }
    .brand {
        display: flex;
        align-items: center;
        gap: 11px;
        flex-shrink: 0;
    }
    .brand-mark {
        width: 42px;
        height: 42px;
        border-radius: 13px;
        background: linear-gradient(135deg, var(--accent), #ffb347);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 19px;
        box-shadow: 0 0 20px rgba(255, 122, 0, 0.32);
    }
    .brand-name {
        color: var(--ink);
        font-size: 20px;
        font-weight: 700;
        letter-spacing: .02em;
        white-space: nowrap;
    }
    .main-nav {
        display: flex;
        align-items: center;
        gap: 4px;
        margin: 0 auto;
    }
    .nav-link {
        padding: 8px 18px;
        border-radius: 999px;
        font-size: 15px;
        color: var(--body);
        font-weight: 500;
        transition: all .25s;
        position: relative;
    }
    .nav-link:hover {
        color: var(--ink);
        background: rgba(255, 255, 255, 0.06);
    }
    .nav-link.active {
        color: var(--ink);
        background: rgba(255, 255, 255, 0.08);
    }
    .nav-link.active::after {
        content: '';
        position: absolute;
        left: 18px;
        right: 18px;
        bottom: 2px;
        height: 2px;
        border-radius: 2px;
        background: var(--accent);
    }
    .header-actions {
        display: flex;
        align-items: center;
        gap: 14px;
        flex-shrink: 0;
    }
    .search-box {
        display: flex;
        align-items: center;
        gap: 8px;
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid var(--border);
        border-radius: 999px;
        padding: 7px 14px;
        width: 220px;
        transition: border-color .25s, box-shadow .25s;
    }
    .search-box i {
        color: var(--mute);
        font-size: 13px;
    }
    .search-box input {
        flex: 1;
        background: transparent;
        color: var(--ink);
        font-size: 14px;
        min-width: 0;
    }
    .search-box input::placeholder {
        color: var(--mute);
    }
    .search-box kbd {
        font-size: 11px;
        background: rgba(255, 255, 255, 0.12);
        color: var(--mute);
        border: 1px solid var(--border);
        border-radius: 6px;
        padding: 1px 6px;
        line-height: 1.4;
    }
    .search-box:focus-within {
        border-color: var(--cyan);
        box-shadow: 0 0 0 3px rgba(0, 229, 204, 0.14), 0 0 20px rgba(0, 229, 204, 0.08);
    }
    .menu-toggle {
        display: none;
        font-size: 22px;
        color: var(--ink);
        background: rgba(255, 255, 255, 0.07);
        width: 42px;
        height: 42px;
        border-radius: 10px;
        align-items: center;
        justify-content: center;
        border: 1px solid var(--border);
    }
    .menu-toggle i {
        line-height: 1;
    }

    /* ===== Buttons ===== */
    .btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        justify-content: center;
        padding: 11px 22px;
        border-radius: 12px;
        font-size: 15px;
        font-weight: 600;
        line-height: 1.4;
        transition: all .25s;
    }
    .btn-primary {
        background: var(--accent);
        color: #fff;
        box-shadow: 0 0 24px rgba(255, 122, 0, 0.38);
    }
    .btn-primary:hover {
        background: var(--accent-hover);
        box-shadow: 0 0 34px rgba(255, 122, 0, 0.55);
        transform: translateY(-1px);
        color: #fff;
    }
    .btn-ghost {
        background: rgba(255, 255, 255, 0.08);
        color: var(--ink);
        border: 1px solid var(--border);
    }
    .btn-ghost:hover {
        background: rgba(255, 255, 255, 0.14);
        color: var(--ink);
        transform: translateY(-1px);
    }
    .btn-lg {
        padding: 15px 34px;
        font-size: 17px;
        border-radius: 14px;
    }
    .btn-sm {
        padding: 8px 16px;
        font-size: 14px;
        border-radius: 10px;
    }

    /* ===== Article Page ===== */
    .article-breadcrumb {
        padding: 32px 0 6px;
        font-size: 14px;
        color: var(--mute);
    }
    .article-breadcrumb .sep {
        margin: 0 8px;
        color: rgba(255, 255, 255, 0.25);
    }
    .article-breadcrumb a {
        color: var(--mute);
        transition: color .25s;
    }
    .article-breadcrumb a:hover {
        color: var(--accent);
    }
    .article-breadcrumb .current {
        color: var(--body);
    }

    .article-head {
        padding: 28px 0 10px;
    }
    .article-meta {
        display: flex;
        align-items: center;
        gap: 16px;
        flex-wrap: wrap;
        margin-bottom: 18px;
    }
    .badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 4px 14px;
        border-radius: 999px;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: .03em;
        line-height: 1.6;
    }
    .badge-accent {
        background: rgba(255, 122, 0, 0.16);
        color: #ffb347;
        border: 1px solid rgba(255, 122, 0, 0.35);
    }
    .article-date {
        font-size: 14px;
        color: var(--mute);
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .article-title {
        font-size: clamp(30px, 5vw, 44px);
        line-height: 1.3;
        color: var(--ink);
        font-weight: 700;
        letter-spacing: .01em;
        margin: 0;
    }

    .article-section {
        padding: 16px 0 40px;
    }
    .article-panel {
        position: relative;
        background: rgba(255, 255, 255, 0.02);
        border: 1px solid var(--border);
        border-radius: 22px;
        padding: clamp(24px, 4vw, 52px);
    }
    .article-panel::before {
        content: '';
        position: absolute;
        inset: 10px;
        border: 1px dashed rgba(255, 255, 255, 0.07);
        border-radius: 16px;
        pointer-events: none;
    }
    .article-panel>* {
        position: relative;
        z-index: 1;
    }

    .article-body {
        font-size: 17px;
        line-height: 1.85;
        color: var(--body);
        word-break: break-word;
    }
    .article-body>*+* {
        margin-top: 1.3em;
    }
    .article-body p {
        line-height: 1.85;
    }
    .article-body h2 {
        font-size: 25px;
        color: var(--ink);
        font-weight: 600;
        margin-top: 2.2em;
        border-left: 4px solid var(--accent);
        padding-left: 16px;
        line-height: 1.4;
    }
    .article-body h3 {
        font-size: 20px;
        color: var(--ink);
        font-weight: 600;
        margin-top: 2em;
    }
    .article-body ul {
        margin: 1.2em 0 1.2em 1.5em;
        list-style: disc;
    }
    .article-body ol {
        margin: 1.2em 0 1.2em 1.5em;
        list-style: decimal;
    }
    .article-body li {
        margin: 0.5em 0;
        padding-left: 4px;
    }
    .article-body a {
        color: var(--cyan);
        border-bottom: 1px dashed rgba(0, 229, 204, 0.4);
    }
    .article-body a:hover {
        color: #5ff0e0;
        border-bottom-color: #5ff0e0;
    }
    .article-body img {
        border-radius: 16px;
        margin: 2em 0;
        border: 1px solid var(--border);
        box-shadow: var(--shadow);
    }
    .article-body blockquote {
        border-left: 4px solid var(--accent);
        background: rgba(255, 255, 255, 0.05);
        padding: 18px 24px;
        border-radius: 0 14px 14px 0;
        color: var(--ink);
        font-size: 16px;
        box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
    }
    .article-body figure {
        margin: 2em 0;
    }
    .article-body figcaption {
        text-align: center;
        color: var(--mute);
        font-size: 13px;
        margin-top: 0.8em;
    }
    .article-body hr {
        border: none;
        height: 1px;
        background: var(--border);
        margin: 2.5em 0;
    }

    .article-tags {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
        margin-top: 40px;
        padding-top: 26px;
        border-top: 1px solid var(--border);
    }
    .tag {
        padding: 6px 18px;
        border-radius: 20px;
        font-size: 13px;
        background: rgba(255, 255, 255, 0.05);
        color: var(--body);
        border: 1px dashed rgba(255, 255, 255, 0.16);
        transition: all .25s;
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .tag:hover {
        color: var(--accent);
        border-color: rgba(255, 122, 0, 0.4);
        background: rgba(255, 122, 0, 0.08);
    }

    .article-pager {
        display: flex;
        gap: 16px;
        margin-top: 28px;
        flex-wrap: wrap;
    }
    .pager-link {
        flex: 1;
        min-width: 210px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 10px;
        background: var(--bg-panel);
        border: 1px solid var(--border);
        border-radius: 14px;
        padding: 16px 22px;
        font-size: 15px;
        color: var(--ink);
        transition: all .25s;
    }
    .pager-link span {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .pager-link:hover {
        border-color: var(--accent);
        color: var(--accent);
        transform: translateY(-2px);
        box-shadow: var(--shadow);
    }

    /* ===== Empty State ===== */
    .empty-state {
        position: relative;
        z-index: 1;
        text-align: center;
        padding: 70px 20px;
        border: 1px dashed rgba(255, 255, 255, 0.16);
        border-radius: 20px;
        background: rgba(255, 255, 255, 0.02);
    }
    .empty-icon {
        width: 72px;
        height: 72px;
        margin: 0 auto 18px;
        border-radius: 50%;
        background: rgba(255, 122, 0, 0.1);
        border: 1px solid rgba(255, 122, 0, 0.2);
        color: #ffb347;
        font-size: 30px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .empty-state p {
        color: var(--ink);
        font-size: 18px;
        font-weight: 600;
        margin-bottom: 24px;
    }

    /* ===== Card Grid ===== */
    .card-grid {
        display: grid;
        gap: 24px;
        grid-template-columns: repeat(3, 1fr);
    }
    .post-card {
        display: block;
        background: var(--bg-panel);
        border-radius: var(--radius);
        overflow: hidden;
        border: 1px solid var(--border);
        transition: all .3s;
    }
    .post-card:hover {
        transform: translateY(-5px);
        box-shadow: var(--shadow-hover);
        border-color: rgba(255, 122, 0, 0.25);
    }
    .card-media {
        position: relative;
        overflow: hidden;
        aspect-ratio: 16 / 9;
        background: var(--bg-panel2);
    }
    .card-media img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .45s ease;
    }
    .post-card:hover .card-media img {
        transform: scale(1.06);
    }
    .card-media .badge {
        position: absolute;
        top: 12px;
        left: 12px;
        backdrop-filter: blur(8px);
        z-index: 2;
    }
    .card-body {
        padding: 22px;
    }
    .card-body h3 {
        font-size: 18px;
        color: var(--ink);
        font-weight: 600;
        line-height: 1.45;
        margin-bottom: 10px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .card-body p {
        font-size: 14px;
        color: var(--mute);
        line-height: 1.7;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .card-foot {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-top: 18px;
        padding-top: 14px;
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        font-size: 13px;
        color: var(--mute);
    }
    .card-foot .more {
        color: var(--accent);
        font-weight: 600;
        display: inline-flex;
        align-items: center;
        gap: 5px;
    }

    /* ===== Section Heading ===== */
    .related-section {
        padding: 72px 0 20px;
    }
    .section-head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 16px;
        margin-bottom: 32px;
    }
    .section-head h2 {
        font-size: 30px;
        color: var(--ink);
        font-weight: 700;
        letter-spacing: 0.01em;
        position: relative;
        padding-left: 16px;
    }
    .section-head h2::before {
        content: '';
        position: absolute;
        left: 0;
        top: 8px;
        bottom: 8px;
        width: 4px;
        background: var(--accent);
        border-radius: 4px;
    }
    .section-link {
        font-size: 14px;
        color: var(--cyan);
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-weight: 600;
        transition: color .25s;
    }
    .section-link:hover {
        color: #5ff0e0;
    }

    /* ===== CTA ===== */
    .cta-section {
        padding: 80px 0 0;
    }
    .cta-card {
        position: relative;
        overflow: hidden;
        border-radius: 26px;
        padding: clamp(40px, 7vw, 72px) 32px;
        text-align: center;
        background: linear-gradient(135deg, rgba(11, 19, 43, 0.88), rgba(28, 48, 79, 0.92));
        border: 1px solid var(--border);
        box-shadow: var(--shadow);
    }
    .cta-card::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
        opacity: 0.16;
        z-index: 0;
    }
    .cta-card::after {
        content: '';
        position: absolute;
        top: -60%;
        right: -20%;
        width: 380px;
        height: 380px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(255, 122, 0, 0.18), transparent 70%);
        pointer-events: none;
        z-index: 0;
    }
    .cta-card>* {
        position: relative;
        z-index: 1;
    }
    .cta-card h2 {
        font-size: clamp(26px, 4vw, 36px);
        color: var(--ink);
        font-weight: 700;
        margin-bottom: 14px;
        letter-spacing: 0.01em;
    }
    .cta-card p {
        color: var(--body);
        max-width: 540px;
        margin: 0 auto 30px;
        font-size: 16px;
        line-height: 1.75;
    }

    /* ===== Footer ===== */
    .site-footer {
        margin-top: 90px;
        background: #070d1d;
        border-top: 1px solid var(--border);
        padding-top: 72px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1.4fr;
        gap: 44px;
    }
    .footer-brand p {
        margin-top: 16px;
        font-size: 14px;
        color: var(--mute);
        max-width: 320px;
        line-height: 1.8;
    }
    .footer-brand .brand-name {
        font-size: 19px;
    }
    .footer-col h4 {
        font-size: 16px;
        color: var(--ink);
        margin-bottom: 16px;
        font-weight: 600;
        letter-spacing: 0.02em;
    }
    .footer-col li {
        margin-bottom: 11px;
        font-size: 14px;
        color: var(--mute);
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .footer-col a {
        color: var(--mute);
        transition: color .25s, padding-left .25s;
    }
    .footer-col a:hover {
        color: var(--accent);
        padding-left: 3px;
    }
    .footer-col i {
        width: 16px;
        color: var(--mute);
    }
    .footer-bottom {
        margin-top: 56px;
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        padding: 26px 0;
        text-align: center;
        font-size: 13px;
        color: var(--mute);
        line-height: 1.6;
    }
    .footer-bottom a {
        color: var(--mute);
    }
    .footer-bottom a:hover {
        color: var(--accent);
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
        .header-inner {
            gap: 16px;
        }
        .search-box {
            width: 170px;
        }
        .card-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 36px;
        }
    }

    @media (max-width: 768px) {
        .header-inner {
            gap: 14px;
        }
        .brand-name {
            font-size: 17px;
        }
        .search-box {
            display: none;
        }
        .main-nav {
            position: fixed;
            top: 74px;
            left: 0;
            right: 0;
            background: rgba(11, 19, 43, 0.98);
            border-bottom: 1px solid var(--border);
            flex-direction: column;
            align-items: stretch;
            gap: 2px;
            padding: 16px 24px 24px;
            transform: translateY(-120%);
            transition: transform .35s ease;
            opacity: 0;
            pointer-events: none;
            margin: 0;
            backdrop-filter: blur(18px);
        }
        .main-nav.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }
        .main-nav .nav-link {
            padding: 13px 18px;
            border-radius: 12px;
            text-align: center;
            font-size: 16px;
        }
        .main-nav .nav-link.active::after {
            display: none;
        }
        .main-nav .nav-link.active {
            background: rgba(255, 122, 0, 0.14);
            color: #ffb347;
        }
        .header-actions .btn-sm {
            padding: 8px 13px;
            font-size: 13px;
        }
        .menu-toggle {
            display: flex;
            margin-left: auto;
        }
        .header-actions {
            gap: 8px;
        }
        .card-grid {
            grid-template-columns: 1fr;
        }
        .article-panel {
            padding: 24px 18px;
        }
        .pager-link {
            flex-direction: column;
            text-align: center;
            align-items: center;
            justify-content: center;
        }
        .pager-link span {
            justify-content: center;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 32px;
        }
        .cta-card {
            padding: 48px 20px;
        }
        .section-head {
            flex-direction: column;
            align-items: flex-start;
            gap: 10px;
        }
    }

    @media (max-width: 560px) {
        .brand-mark {
            width: 36px;
            height: 36px;
            font-size: 16px;
            border-radius: 11px;
        }
        .brand-name {
            font-size: 15.5px;
        }
        .container {
            padding: 0 18px;
        }
        .header-actions .btn-sm {
            display: none;
        }
        .article-title {
            font-size: 27px;
        }
        .article-body {
            font-size: 16px;
            line-height: 1.8;
        }
    }