/* roulang page: index */
:root{
    --brand-h:203;
    --brand-s:35%;
    --brand-l:38%;
    --brand:hsl(var(--brand-h),var(--brand-s),var(--brand-l));
    --brand-dark:hsl(204,45%,24%);
    --brand-soft:hsl(203,38%,94%);
    --accent:#C7832B;
    --accent-strong:#B26F21;
    --accent-light:#D99A3D;
    --accent-bg:#F7E9D3;
    --bg:#F3F6F9;
    --surface:#FFFFFF;
    --ink:#203844;
    --ink2:#3A5560;
    --muted:#68818B;
    --line:rgba(28,74,90,.14);
    --radius-card:14px;
    --radius-img:10px;
    --radius-btn:8px;
    --radius-ctl:8px;
    --shadow-card:0 6px 18px rgba(21,66,84,.08);
    --shadow-hover:0 14px 30px rgba(21,66,84,.12);
    --transition:.22s ease;
    --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;}
body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:-apple-system,"SF Pro SC","PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    font-size:16px;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--transition);}
a:hover{color:var(--brand-dark);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
    outline:3px solid rgba(38,94,115,.3);
    outline-offset:2px;
    border-radius:4px;
}
button{font-family:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-head{max-width:760px;margin:0 auto 52px;text-align:center;}
.section-eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:14px;font-weight:600;color:var(--accent);
    letter-spacing:.5px;margin-bottom:14px;
    background:var(--accent-bg);
    padding:6px 14px;border-radius:30px;
}
.section-title{
    font-size:clamp(26px,3.2vw,38px);
    line-height:1.25;
    margin:0 0 18px;
    color:var(--ink);
    font-weight:700;
    letter-spacing:-.4px;
}
.section-sub{color:var(--ink2);font-size:17px;max-width:620px;margin:0 auto;}

/* buttons */
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:48px;padding:0 26px;
    border-radius:var(--radius-btn);
    font-weight:600;font-size:16px;line-height:1;
    border:1px solid transparent;
    transition:background var(--transition),color var(--transition),border-color var(--transition),box-shadow var(--transition),transform var(--transition);
    text-align:center;
}
.btn-primary{background:var(--brand-dark);color:#fff;box-shadow:0 8px 20px rgba(21,66,84,.18);}
.btn-primary:hover{background:hsl(204,45%,18%);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(21,66,84,.22);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 22px rgba(199,131,43,.26);}
.btn-accent:hover{background:var(--accent-strong);color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(199,131,43,.32);}
.btn-accent:active{transform:translateY(0);box-shadow:none;}
.btn-outline{background:transparent;color:var(--brand-dark);border:1px solid rgba(28,74,90,.32);}
.btn-outline:hover{border-color:var(--brand-dark);color:var(--brand-dark);background:rgba(28,74,90,.05);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(0);}
.btn-light{background:#fff;color:var(--brand-dark);}
.btn-light:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-2px);}

/* header */
.site-header{
    height:72px;
    background:rgba(255,255,255,.97);
    border-bottom:1px solid var(--line);
    position:sticky;top:0;z-index:100;
    backdrop-filter:saturate(1.1);
}
.header-inner{
    height:72px;display:flex;align-items:center;justify-content:space-between;
    max-width:var(--container);margin:0 auto;padding:0 24px;gap:16px;
}
.brand{
    display:inline-flex;align-items:center;gap:10px;flex-shrink:0;
    color:var(--ink);border-radius:8px;
}
.brand-mark{
    width:40px;height:40px;border-radius:12px;flex:0 0 40px;
    background:var(--brand-dark);color:#fff;display:flex;align-items:center;justify-content:center;
    font-size:18px;box-shadow:0 6px 14px rgba(21,66,84,.16);
}
.brand-word{display:flex;flex-direction:column;line-height:1.15;}
.brand-sub{font-size:12px;font-weight:700;color:var(--brand);letter-spacing:1.2px;text-transform:uppercase;}
.brand-main{font-size:19px;font-weight:700;letter-spacing:.2px;color:var(--ink);}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
    position:relative;display:inline-flex;align-items:center;
    min-height:40px;padding:0 16px;border-radius:8px;
    color:var(--ink2);font-weight:500;font-size:15px;
    transition:background var(--transition),color var(--transition);
}
.nav-link:hover{color:var(--brand-dark);background:var(--brand-soft);}
.nav-link.active{color:var(--brand-dark);font-weight:600;background:rgba(28,74,90,.09);}
.nav-link.active::after{
    content:"";position:absolute;left:16px;right:16px;bottom:2px;height:2px;
    border-radius:2px;background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-cta{min-height:44px;padding:0 22px;font-size:15px;white-space:nowrap;}
.menu-toggle{
    display:none;width:44px;height:44px;align-items:center;justify-content:center;
    background:#fff;border:1px solid var(--line);border-radius:8px;
    color:var(--ink);font-size:20px;
}
.menu-toggle:hover{background:var(--brand-soft);color:var(--brand-dark);}

/* countdown ticker */
.tick-bar{background:var(--accent-bg);border-bottom:1px solid rgba(199,131,43,.14);}
.tick-inner{
    max-width:var(--container);margin:0 auto;padding:8px 24px;
    display:flex;align-items:center;justify-content:flex-end;gap:14px;flex-wrap:wrap;
    min-height:46px;
}
.tick-label{font-size:14px;font-weight:600;color:#7A511F;}
.tick-boxes{display:flex;align-items:center;gap:6px;}
.tick-item{
    display:inline-flex;justify-content:center;gap:3px;text-align:center;
    background:#fff;border:1px solid rgba(199,131,43,.32);border-radius:6px;
    padding:3px 8px;font-size:15px;font-weight:700;color:var(--accent-strong);
    font-variant-numeric:tabular-nums;min-width:38px;
}
.tick-unit{font-size:11px;font-weight:500;color:#7A511F;margin-left:2px;}
.tick-ended{color:#7A511F;font-size:14px;}

/* hero */
.hero{
    position:relative;
    background:
        linear-gradient(105deg,rgba(243,246,249,.97) 0%,rgba(243,246,249,.88) 45%,rgba(226,236,240,.62) 100%),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    border-bottom:1px solid var(--line);
}
.hero .container{min-height:78vh;min-height:600px;display:flex;align-items:center;padding-top:56px;padding-bottom:56px;}
.hero-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:56px;width:100%;align-items:center;}
.hero-kicker{
    display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.8);
    border:1px solid var(--line);color:var(--accent);font-size:14px;font-weight:600;
    padding:6px 14px;border-radius:40px;margin-bottom:20px;
}
.hero-title{
    font-size:clamp(32px,4.8vw,52px);
    line-height:1.16;font-weight:700;color:var(--ink);
    letter-spacing:-1px;margin:0 0 18px;
}
.hero-lead{
    font-size:19px;line-height:1.7;color:var(--ink2);
    max-width:460px;margin:0 0 30px;
}
.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:14px;}
.hero-note{display:flex;align-items:center;gap:8px;margin-top:26px;color:var(--muted);font-size:14px;}
.hero-visual{position:relative;}
.hero-img-wrap{
    position:relative;border-radius:18px;overflow:hidden;
    box-shadow:0 22px 50px rgba(21,66,84,.18);
    border:6px solid #fff;background:#fff;
}
.hero-img-wrap img{width:100%;height:420px;object-fit:cover;}
.hero-float{
    position:absolute;left:-26px;bottom:28px;
    background:#fff;border-radius:12px;padding:12px 16px;
    box-shadow:var(--shadow-hover);display:flex;align-items:center;gap:12px;
    max-width:220px;
}
.hero-float-ic{width:38px;height:38px;border-radius:10px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:17px;}
.hero-float strong{display:block;font-size:14px;color:var(--ink);}
.hero-float span{font-size:13px;color:var(--muted);line-height:1.4;}

/* feature selling section */
.sell-section{background:#fff;}
.sell-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.feature-card{
    position:relative;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--radius-card);padding:30px 24px 24px;overflow:hidden;
    box-shadow:var(--shadow-card);
    transition:box-shadow var(--transition),transform var(--transition),border-color var(--transition);
    min-height:270px;
}
.feature-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-6px);border-color:rgba(28,74,90,.24);}
.feature-card .feature-ic{
    width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
    color:var(--brand-dark);background:var(--brand-soft);font-size:20px;margin-bottom:18px;
}
.feature-card h3{font-size:18px;font-weight:700;margin:0 0 10px;color:var(--ink);}
.feature-card p{color:var(--ink2);font-size:15px;margin:0;line-height:1.75;}
.f-variant-a{padding-left:26px;}
.f-variant-a::before{
    content:"";position:absolute;left:0;top:24px;bottom:24px;width:4px;
    border-radius:4px;background:linear-gradient(180deg,var(--accent),var(--accent-light));
}
.f-variant-c{padding-top:30px;}
.f-variant-c::before{
    content:"";position:absolute;right:-36px;top:-36px;width:100px;height:100px;border-radius:50%;
    background:rgba(199,131,43,.07);
}
.f-variant-d::before{
    font-size:110px;font-weight:700;line-height:1;position:absolute;right:10px;bottom:-10px;
    color:rgba(28,74,90,.06);z-index:0;
}
.f-variant-d > *{position:relative;z-index:1;}
.f-feature-badge{
    display:inline-block;font-size:11px;font-weight:600;color:var(--accent);
    background:var(--accent-bg);padding:3px 10px;border-radius:20px;margin-bottom:12px;
}
.feature-card .feature-ic.has-accent{background:var(--accent-bg);color:var(--accent-strong);}

/* gallery */
.gallery-section{background:var(--bg);}
.gallery-grid{
    display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:220px;gap:18px;
}
.g-item{
    position:relative;border-radius:14px;overflow:hidden;box-shadow:var(--shadow-card);
    background:#E1E9EC;display:block;transition:box-shadow var(--transition),transform var(--transition);
}
.g-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.g-item img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.g-item:hover img{transform:scale(1.04);}
.g-item-grad{position:absolute;inset:0;background:linear-gradient(180deg,rgba(22,44,54,0) 44%,rgba(22,44,54,.82) 100%);}
.g-item-text{position:absolute;left:0;right:0;bottom:0;padding:18px;z-index:2;}
.g-tag{
    display:inline-block;font-size:12px;font-weight:600;color:#fff;
    background:rgba(199,131,43,.92);padding:3px 9px;border-radius:20px;margin-bottom:8px;
}
.g-title{color:#fff;font-size:18px;font-weight:700;margin:0;line-height:1.4;}
.g-item-wide{grid-column:span 2;grid-row:span 2;}
.g-item-half{grid-column:span 2;grid-row:span 1;}
.g-item-small{grid-column:span 1;grid-row:span 1;}
.gallery-more{text-align:center;margin-top:34px;}

/* apply CTA */
.cta-wrap{padding:88px 0;background:var(--bg);}
.cta-card{
    background:#1B4A5D;color:#F0F5F7;border-radius:20px;
    padding:52px;position:relative;overflow:hidden;
    box-shadow:0 18px 42px rgba(27,74,93,.2);
    display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
}
.cta-card::before{
    content:"";position:absolute;left:-80px;top:-120px;width:320px;height:320px;border-radius:50%;
    background:rgba(255,255,255,.05);pointer-events:none;
}
.cta-card::after{
    content:"";position:absolute;right:-40px;bottom:-160px;width:340px;height:340px;border-radius:50%;
    background:rgba(199,131,43,.14);pointer-events:none;
}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{color:#fff;font-size:clamp(25px,3vw,36px);font-weight:700;line-height:1.3;margin:0 0 14px;}
.cta-copy p{color:rgba(240,245,247,.86);margin:0 0 10px;font-size:16px;}
.cta-copy-list{list-style:none;margin:20px 0 0;padding:0;display:grid;gap:12px;}
.cta-copy-list li{display:flex;align-items:center;gap:10px;color:rgba(240,245,247,.9);font-size:15px;}
.cta-copy-list i{color:var(--accent-light);}
.lead-form{
    background:#fff;color:var(--ink);border-radius:14px;padding:26px;box-shadow:0 16px 36px rgba(10,34,45,.22);
    display:grid;gap:18px;position:relative;z-index:2;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.lead-form label{font-size:14px;font-weight:600;color:var(--ink);display:grid;gap:7px;}
.lead-form input,.lead-form textarea{
    width:100%;border:1px solid #C6D5DC;border-radius:var(--radius-ctl);
    min-height:44px;padding:10px 14px;font-size:15px;color:var(--ink);
    background:#FBFCFD;transition:border-color var(--transition),box-shadow var(--transition);
    font-family:inherit;
}
.lead-form textarea{min-height:76px;resize:vertical;}
.lead-form input:focus,.lead-form textarea:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(28,74,90,.08);background:#fff;outline:none;}
.lead-form .btn{width:100%;margin-top:4px;}
.form-status{font-size:14px;margin:0;padding:8px 12px;border-radius:8px;display:none;}
.form-status.success{display:block;background:#E8F6ED;color:#216C3B;}
.form-status.error{display:block;background:#FCEBEB;color:#A63D3D;}
.form-hint{font-size:13px;color:var(--muted);margin:0;line-height:1.6;}

/* FAQ */
.faq-section{background:#EDF3F6;padding:90px 0;}
.faq-inner{max-width:820px;margin:0 auto;padding:0 24px;}
.faq-head{text-align:center;margin-bottom:38px;}
.faq-list{list-style:none;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);background:transparent;}
.faq-title{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:24px 4px;color:var(--ink);font-size:17px;font-weight:600;
    line-height:1.5;cursor:pointer;transition:color var(--transition);
}
.faq-title:hover{color:var(--brand-dark);}
.faq-title .faq-mark{
    width:28px;height:28px;border-radius:6px;flex:0 0 28px;
    background:rgba(28,74,90,.08);color:var(--brand-dark);display:flex;align-items:center;justify-content:center;
    font-size:15px;transition:transform var(--transition),background var(--transition);
}
.faq-item.is-active .faq-title{color:var(--brand-dark);}
.faq-item.is-active .faq-mark{background:var(--brand-dark);color:#fff;transform:rotate(135deg);}
.faq-content{color:var(--ink2);font-size:16px;line-height:1.8;padding:2px 4px 24px;}
.faq-content p{margin:0;}
.faq-tip{margin-top:30px;text-align:center;color:var(--muted);font-size:14px;}
.faq-tip a{font-weight:600;}

/* latest news */
.latest-section{background:#fff;padding:90px 0;}
.latest-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:28px;align-items:start;}
.feature-post{
    background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
    box-shadow:var(--shadow-card);transition:box-shadow var(--transition),transform var(--transition);
    display:block;color:var(--ink);
}
.feature-post:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);color:var(--ink);}
.feature-post-cover{position:relative;display:block;overflow:hidden;}
.feature-post-cover img{width:100%;height:260px;object-fit:cover;transition:transform .45s ease;}
.feature-post:hover .feature-post-cover img{transform:scale(1.04);}
.feature-post-body{padding:24px;}
.feature-post-body .feature-label{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.feature-post-body h3{font-size:21px;line-height:1.5;margin:0 0 12px;color:var(--ink);font-weight:700;}
.feature-post-body p{color:var(--ink2);font-size:15px;margin:0 0 16px;}
.post-meta{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px;}
.news-feed-list{display:flex;flex-direction:column;gap:14px;}
.news-feed-item{
    background:#FBFCFD;border:1px solid var(--line);border-radius:12px;
    transition:border-color var(--transition),background var(--transition),box-shadow var(--transition);
}
.news-feed-item:hover{background:#fff;border-color:rgba(28,74,90,.24);box-shadow:var(--shadow-card);}
.news-feed-link{display:block;padding:18px 18px;color:var(--ink);}
.news-feed-link:hover{color:var(--ink);}
.feed-item-head{display:flex;align-items:center;gap:10px;margin-bottom:8px;}
.news-feed-item h4{font-size:16px;font-weight:600;line-height:1.5;margin:0 0 8px;color:var(--ink);}
.news-feed-item p{font-size:14px;color:var(--ink2);margin:0 0 12px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.feed-time{display:inline-flex;align-items:center;gap:5px;color:var(--muted);font-size:13px;font-variant-numeric:tabular-nums;}
.feed-empty, .feature-empty-state{grid-column:1/-1;}
.empty-state{
    text-align:center;padding:48px 20px;border:1px dashed #C2D2D9;border-radius:16px;
    background:#FBFCFD;
}
.empty-ic{font-size:40px;color:var(--muted);margin-bottom:12px;opacity:.7;}
.empty-state h3{font-size:19px;color:var(--ink);margin:0 0 6px;}
.empty-state p{color:var(--muted);margin:0;font-size:15px;}

/* footer */
.site-footer{
    background:#EDF3F6;border-top:4px solid var(--brand);padding:58px 0 24px;color:var(--ink2);
}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .9fr 1fr;gap:36px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:14px;line-height:1.8;color:var(--ink2);max-width:260px;margin:0 0 18px;}
.footer-seal{
    display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);
    padding:7px 12px;border-radius:30px;font-size:13px;color:var(--brand-dark);font-weight:600;
}
.footer-seal i{color:var(--accent);}
.footer-title{font-size:16px;font-weight:700;color:var(--brand-dark);margin:14px 0 18px;}
.footer-links{list-style:none;display:grid;gap:10px;}
.footer-links a{color:var(--ink2);font-size:15px;display:inline-flex;align-items:center;gap:8px;}
.footer-links a:hover{color:var(--accent);transform:translateX(2px);}
.footer-contact{font-size:14px;line-height:1.9;margin:0;opacity:.9;}
.footer-bottom{
    border-top:1px solid rgba(28,74,90,.12);margin-top:38px;padding-top:20px;
    display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;
    color:var(--muted);font-size:13px;
}
.footer-bottom .legal span{margin:0 4px;}
.footer-bottom a{color:var(--muted);}
@media (max-width:1024px){
    .container{padding:0 20px;}
    .sell-grid{grid-template-columns:repeat(2,1fr);}
    .hero-grid{grid-template-columns:1fr;gap:34px;}
    .hero .container{min-height:auto;padding-top:60px;padding-bottom:60px;}
    .hero-visual .hero-img-wrap img{height:320px;}
    .cta-card{grid-template-columns:1fr;padding:38px;}
    .gallery-grid{grid-template-columns:repeat(3,1fr);grid-auto-rows:210px;}
    .g-item-wide{grid-column:span 2;}
    .g-item-half,.g-item-small{grid-column:span 1;}
    .latest-grid{grid-template-columns:1fr;}
}
@media (max-width:900px){
    .menu-toggle{display:flex;}
    .main-nav{
        position:absolute;top:72px;left:0;right:0;background:#fff;
        border-bottom:1px solid var(--line);padding:16px 24px 24px;
        display:none;flex-direction:column;gap:6px;box-shadow:0 18px 32px rgba(21,66,84,.12);
    }
    .header-inner.nav-open .main-nav{display:flex;}
    .nav-link{width:100%;min-height:44px;}
    .nav-cta{width:100%;margin-top:8px;}
    .nav-actions{display:flex;align-items:center;}
    .header-inner.nav-open .nav-actions{display:none;}
    .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
    .section{padding:68px 0;}
    .sell-grid{grid-template-columns:1fr 1fr;}
    .feature-card{min-height:0;}
    .form-row{grid-template-columns:1fr;}
    .hero-actions .btn{width:100%;}
    .hero-float{left:12px;bottom:12px;max-width:200px;}
    .hero-img-wrap img{height:260px;}
    .cta-wrap{padding:60px 0;}
    .cta-card{padding:26px;}
    .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:639px){
    .tick-inner{justify-content:center;gap:10px;}
    .gallery-grid{grid-template-columns:1fr;grid-auto-rows:230px;}
    .g-item-wide,.g-item-half,.g-item-small{grid-column:auto!important;grid-row:auto!important;}
    .section-title{font-size:25px;}
    .hero-title{font-size:30px;}
    .hero-lead{font-size:17px;}
}
@media (max-width:520px){
    .container{padding:0 16px;}
    .header-inner{padding:0 12px;}
    .brand-main{font-size:16px;}
    .btn{min-height:48px;}
    .lead-form{padding:18px;}
}

/* roulang page: article */
:root {
  --primary: hsl(203, 35%, 38%);
  --primary-dark: hsl(204, 45%, 24%);
  --primary-light: hsl(203, 45%, 94%);
  --accent: #C7832B;
  --accent-light: #F7E9D3;
  --page-bg: #F3F6F9;
  --surface: #FFFFFF;
  --text-color: #243B45;
  --text-weak: #6B7F8A;
  --border: rgba(35, 85, 108, 0.16);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --shadow-1: 0 6px 18px rgba(21, 66, 84, 0.08);
  --shadow-2: 0 14px 30px rgba(21, 66, 84, 0.12);
  --font: -apple-system, "SF Pro SC", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--page-bg);
  color: var(--text-color);
  font-family: var(--font);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body {
  font-size: 16px;
}

a { color: var(--primary); text-decoration: none; }

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

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

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--primary-dark);
  color: #fff;
  padding: 10px 18px;
  z-index: 100;
  border-radius: 0 0 12px 0;
}

.skip-link:focus {
  left: 0;
  color: #fff;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 72px;
  padding: 10px 24px;
  max-width: 1280px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 13px;
  background: var(--primary-dark);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 18px;
  box-shadow: var(--shadow-1);
}

.brand-word {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-sub {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--accent);
  text-transform: uppercase;
}

.brand-main {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: 0.01em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
  margin-right: 8px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-color);
  font-weight: 500;
  font-size: 15px;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
  line-height: 1;
}

.nav-link:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
}

.nav-link:focus-visible,
.btn-ui:focus-visible,
.article-card:focus-within {
  outline: 3px solid rgba(31, 98, 118, 0.35);
  outline-offset: 2px;
}

.nav-link.active {
  background: var(--primary-dark);
  color: #fff;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--primary-dark);
  font-size: 20px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s;
}

.menu-toggle:hover {
  background: var(--primary-light);
}

.page-main {
  background: var(--page-bg);
  padding: 44px 0 96px;
  min-height: 80vh;
}

.article-shell {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  font-size: 14px;
  color: var(--text-weak);
  margin-bottom: 22px;
  gap: 6px;
}

.breadcrumb a {
  color: var(--text-weak);
  transition: color 0.2s;
}

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

.breadcrumb .sep {
  color: rgba(35, 85, 108, 0.4);
}

.breadcrumb .current {
  color: var(--text-color);
  font-weight: 600;
  max-width: 320px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.article-card-wrap {
  background: var(--surface);
  border-radius: 18px;
  box-shadow: var(--shadow-1);
  padding: 42px 52px 46px;
}

.article-kind {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 6px 14px;
  border-radius: 999px;
  letter-spacing: 0.02em;
  margin-bottom: 22px;
}

.article-title {
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.35;
  margin: 0 0 18px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  font-size: 14px;
  color: var(--text-weak);
  border-bottom: 1px solid var(--border);
  padding-bottom: 22px;
  margin-bottom: 26px;
}

.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.article-meta i {
  color: var(--accent);
  font-size: 14px;
}

.article-content {
  font-size: 17px;
  color: #2A3D48;
  line-height: 1.95;
}

.article-content p {
  margin: 0 0 1.4em;
}

.article-content h2 {
  font-size: 26px;
  color: var(--primary-dark);
  margin: 1.8em 0 0.8em;
  padding-top: 0.4em;
  font-weight: 700;
}

.article-content h3 {
  font-size: 21px;
  color: var(--primary);
  margin: 1.6em 0 0.7em;
  font-weight: 700;
}

.article-content ul,
.article-content ol {
  margin: 0 0 1.5em 0;
  padding-left: 1.25em;
}

.article-content li {
  margin-bottom: 0.5em;
}

.article-content ul li::marker {
  color: var(--accent);
}

.article-content ol li::marker {
  color: var(--primary);
}

.article-content blockquote {
  margin: 1.6em 0;
  padding: 14px 22px;
  border-left: 4px solid var(--accent);
  background: #FBF7F2;
  border-radius: 0 12px 12px 0;
  color: #4A5D68;
}

.article-content blockquote p {
  margin-bottom: 0;
}

.article-content img {
  border-radius: 12px;
  margin: 20px 0 12px;
  box-shadow: var(--shadow-1);
}

.article-content figcaption {
  font-size: 14px;
  color: var(--text-weak);
  text-align: center;
  padding-bottom: 1.2em;
}

.article-content iframe,
.article-content video {
  max-width: 100%;
  border-radius: 12px;
}

.article-content a {
  color: var(--primary);
  border-bottom: 1px solid rgba(37, 78, 108, 0.25);
}

.article-content a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.article-footer {
  margin-top: 36px;
  border-top: 1px solid var(--border);
  padding-top: 22px;
}

.article-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  align-items: center;
}

.article-footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-color);
  font-weight: 500;
  font-size: 15px;
  padding: 9px 18px;
  border-radius: 10px;
  background: #F3F6F9;
  transition: background 0.2s, color 0.2s, transform 0.2s;
}

.article-footer-links a:hover {
  background: var(--primary);
  color: #fff;
}

.article-footer-links i {
  color: var(--accent);
  font-size: 14px;
}

.article-footer-links a:hover i {
  color: #fff;
}

.error-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
  padding: 64px 28px;
  text-align: center;
  margin-top: 24px;
}

.error-card .error-icon {
  display: grid;
  width: 64px;
  height: 64px;
  place-items: center;
  font-size: 24px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 20px;
  margin: 0 auto 22px;
}

.error-title {
  font-size: 24px;
  color: var(--primary-dark);
  font-weight: 700;
  margin-bottom: 16px;
}

.error-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--primary-dark);
  color: #fff;
  border-radius: 10px;
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s;
}

.error-back:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}

.related-section {
  max-width: 1000px;
  margin: 46px auto 0;
  padding: 0 24px;
}

.related-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}

.related-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary-dark);
  margin: 0;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.related-card {
  position: relative;
  display: block;
  background: var(--surface);
  border-radius: 14px;
  padding: 24px 22px 26px;
  box-shadow: var(--shadow-1);
  border: 1px solid rgba(35, 85, 108, 0.06);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.related-card:hover {
  box-shadow: var(--shadow-2);
  transform: translateY(-4px);
}

.related-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 18px;
}

.related-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
  background: #EAEFF3;
  color: var(--primary);
}

.related-icon {
  color: rgba(31, 98, 118, 0.2);
  font-size: 22px;
}

.related-card-title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--primary-dark);
  margin: 0 0 10px;
}

.related-card-title:hover {
  color: var(--accent);
}

.related-desc {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.8;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-more {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
}

.related-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 14px;
}

.site-footer {
  background: #EDF3F6;
  border-top: 4px solid var(--primary);
}

.footer-topline {
  height: 4px;
  width: 100%;
  background: linear-gradient(90deg, var(--primary-dark), var(--accent));
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 40px;
  padding: 54px 0 38px;
}

.footer-brand .brand {
  margin-bottom: 16px;
}

.footer-brand .brand-word {
  line-height: 1.1;
}

.footer-desc {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.8;
  margin: 14px 0 14px;
}

.footer-seal {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(23, 73, 92, 0.08);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 999px;
}

.footer-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 14px;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.footer-links li {
  line-height: 1.6;
}

.footer-links a {
  color: #54707D;
  font-size: 14px;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-contact {
  font-size: 14px;
  color: #54707D;
  line-height: 1.9;
  margin: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(35, 85, 108, 0.2);
  padding: 18px 0 26px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 22px;
  font-size: 13px;
  color: var(--text-weak);
}

.footer-bottom .legal a {
  color: rgba(44, 79, 99, 0.9);
}

.footer-bottom .legal a:hover {
  color: var(--accent);
}

.totop {
  display: none;
}

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
    row-gap: 32px;
  }

  .footer-brand {
    grid-column: span 3;
  }

  .related-grid {
    gap: 18px;
  }
}

@media (max-width: 820px) {
  .header-inner {
    flex-wrap: wrap;
    min-height: 68px;
    padding: 10px 16px;
  }

  .menu-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .main-nav {
    display: none;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    background: var(--surface);
    border-top: 1px solid var(--border);
    margin: 10px 0 0;
    padding: 12px 0 20px;
    gap: 8px;
  }

  .main-nav.open {
    display: flex;
  }

  .nav-link {
    justify-content: center;
    padding: 14px 12px;
    font-size: 16px;
  }

  .article-card-wrap {
    padding: 30px 24px;
    border-radius: 14px;
  }

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

@media (max-width: 620px) {
  .header-inner {
    padding-left: 14px;
    padding-right: 14px;
  }

  .page-main {
    padding-top: 24px;
    padding-bottom: 60px;
  }

  .article-shell {
    padding-left: 14px;
    padding-right: 14px;
  }

  .breadcrumb .current {
    max-width: 170px;
  }

  .article-card-wrap {
    padding: 24px 18px;
  }

  .article-title {
    font-size: 26px;
    line-height: 1.4;
  }

  .article-meta {
    gap: 10px 14px;
    font-size: 13px;
  }

  .article-content {
    font-size: 16px;
  }

  .related-section {
    padding-left: 14px;
    padding-right: 14px;
  }

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

  .related-card {
    padding: 22px 18px;
  }

  .footer-grid {
    display: block;
    padding-top: 36px;
  }

  .footer-brand {
    margin-bottom: 26px;
  }

  .footer-title {
    margin-top: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* roulang page: category1 */
:root {
      --primary: #3E6A7E;
      --primary-deep: #1E4759;
      --primary-soft: #E8F0F4;
      --accent: #C7832B;
      --accent-deep: #A9681C;
      --accent-soft: #F7E9D3;
      --ink: #22333C;
      --muted: #5C737F;
      --bg: #F3F6F9;
      --card: #FFFFFF;
      --border: rgba(42, 95, 116, .14);
      --line: rgba(62, 106, 126, .12);
      --shadow: 0 6px 18px rgba(32, 84, 102, .08);
      --shadow-lg: 0 14px 32px rgba(32, 84, 102, .13);
      --radius-card: 14px;
      --radius-img: 10px;
      --radius-btn: 8px;
      --font-main: -apple-system, "SF Pro SC", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font-main);
      background: var(--bg);
      color: var(--ink);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      color: var(--primary);
      text-decoration: none;
      transition: color .2s ease;
    }

    a:hover,
    a:focus {
      color: var(--primary-deep);
    }

    button,
    input,
    select,
    textarea {
      font-family: inherit;
    }

    h1,
    h2,
    h3,
    h4 {
      color: var(--ink);
      line-height: 1.25;
      font-weight: 700;
      margin: 0 0 .55em;
    }

    h2 {
      font-size: clamp(1.5rem, 2.6vw, 2.2rem);
    }

    h3 {
      font-size: clamp(1.1rem, 1.6vw, 1.3rem);
    }

    .text-muted {
      color: var(--muted);
    }

    .grid-container {
      max-width: 1200px;
      padding-left: 24px;
      padding-right: 24px;
    }

    .section-pad {
      padding: 92px 0;
    }

    .section-soft {
      background: #EDF3F6;
    }

    .section-head {
      max-width: 760px;
      margin: 0 auto 42px;
      text-align: center;
    }

    .section-head p {
      color: var(--muted);
      font-size: 1.02rem;
      margin-bottom: 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--accent);
      font-weight: 600;
      font-size: .88rem;
      letter-spacing: .06em;
      margin-bottom: 10px;
    }

    .eyebrow::before {
      content: "";
      width: 24px;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 46px;
      padding: 0 22px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      font-size: .98rem;
      line-height: 1;
      transition: background .2s, color .2s, transform .18s, box-shadow .2s;
      cursor: pointer;
      border: 1px solid transparent;
    }

    .btn-accent {
      background: var(--accent);
      color: #25313A;
      border-color: var(--accent);
    }

    .btn-accent:hover,
    .btn-accent:focus {
      background: var(--accent-deep);
      border-color: var(--accent-deep);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 10px 22px rgba(153, 93, 35, .22);
    }

    .btn-outline {
      background: transparent;
      color: var(--primary);
      border-color: var(--primary);
    }

    .btn-outline:hover,
    .btn-outline:focus {
      background: var(--primary);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 8px 18px rgba(37, 81, 99, .18);
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
    }

    .btn-primary:hover,
    .btn-primary:focus {
      background: var(--primary-deep);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 10px 22px rgba(30, 71, 89, .18);
    }

    a:focus-visible,
    button:focus-visible {
      outline: 3px solid rgba(56, 150, 180, .38);
      outline-offset: 2px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 80;
      background: #fff;
      border-bottom: 1px solid var(--line);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      gap: 20px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      column-gap: 12px;
      flex-shrink: 0;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 12px;
      background: var(--primary);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 18px;
    }

    .brand-word {
      display: flex;
      flex-direction: column;
      line-height: 1.12;
    }

    .brand-sub {
      font-size: .82rem;
      color: var(--muted);
      letter-spacing: .05em;
      margin-bottom: 3px;
    }

    .brand-main {
      font-size: 1.22rem;
      font-weight: 700;
      color: var(--ink);
      letter-spacing: .02em;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 6px;
      margin-left: auto;
    }

    .nav-link {
      position: relative;
      padding: 9px 16px;
      border-radius: 30px;
      font-weight: 500;
      color: var(--ink);
      font-size: .96rem;
      transition: background .2s, color .2s;
    }

    .nav-link:hover,
    .nav-link:focus {
      background: rgba(62, 106, 126, .1);
      color: var(--primary-deep);
    }

    .nav-link.active {
      background: rgba(62, 106, 126, .14);
      color: var(--primary-deep);
      font-weight: 600;
    }

    .header-cta {
      margin-left: 18px;
    }

    .header-cta .btn {
      min-height: 42px;
      padding: 0 18px;
    }

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 0;
      background: transparent;
      color: var(--primary);
      font-size: 1.25rem;
      border-radius: 8px;
      cursor: pointer;
    }

    .nav-toggle:hover {
      background: var(--primary-soft);
    }

    .mobile-menu {
      display: none;
      padding: 10px 24px 18px;
      background: #fff;
      border-top: 1px solid var(--line);
    }

    .mobile-menu.open {
      display: block;
    }

    .mobile-menu .nav-link {
      display: block;
      padding: 14px 8px;
      border-radius: 10px;
    }

    .mobile-menu .mobile-cta {
      margin-top: 12px;
      width: 100%;
    }

    .category-hero {
      background-color: var(--primary-deep);
      background-image:
        linear-gradient(90deg, rgba(23, 62, 81, .95), rgba(23, 62, 81, .72)),
        url('/assets/images/backpic/back-1.webp');
      background-repeat: no-repeat;
      background-size: cover;
      background-position: center;
      color: #fff;
      position: relative;
      overflow: hidden;
    }

    .hero-inner {
      max-width: 1200px;
      margin: 0 auto;
      padding: 78px 24px 84px;
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      align-items: center;
      gap: 48px;
    }

    .crumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      font-size: .88rem;
      color: rgba(255, 255, 255, .82);
      margin-bottom: 24px;
    }

    .crumb a {
      color: rgba(255, 255, 255, .9);
      border-bottom: 1px solid rgba(255, 255, 255, .35);
    }

    .crumb a:hover {
      color: #fff;
    }

    .category-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 14px;
      border-radius: 40px;
      background: rgba(255, 255, 255, .14);
      color: #fff;
      font-size: .85rem;
      font-weight: 600;
      letter-spacing: .04em;
      margin-bottom: 18px;
      border: 1px solid rgba(255, 255, 255, .24);
    }

    .category-hero h1 {
      color: #fff;
      font-size: clamp(1.7rem, 4vw, 3rem);
      margin-bottom: 18px;
      letter-spacing: .01em;
    }

    .hero-copy {
      font-size: 1.04rem;
      color: rgba(255, 255, 255, .9);
      max-width: 560px;
      margin-bottom: 0;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 28px;
    }

    .hero-note {
      position: relative;
      border-radius: 20px;
      overflow: hidden;
      box-shadow: 0 18px 40px rgba(7, 30, 43, .28);
    }

    .hero-note img {
      width: 100%;
      min-height: 260px;
      object-fit: cover;
    }

    .hero-note .note-caption {
      position: absolute;
      left: 16px;
      bottom: 16px;
      background: rgba(29, 71, 90, .88);
      color: #fff;
      padding: 8px 14px;
      border-radius: 24px;
      font-size: .86rem;
      backdrop-filter: blur(4px);
    }

    .feature-card {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: var(--radius-card);
      padding: 24px 22px 26px;
      height: 100%;
      position: relative;
      overflow: hidden;
      box-shadow: 0 3px 12px rgba(34, 84, 100, .04);
      transition: box-shadow .22s, transform .22s;
    }

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

    .feature-card .icon-holder {
      width: 46px;
      height: 46px;
      border-radius: 12px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      margin-bottom: 20px;
      background: var(--primary-soft);
      color: var(--primary);
    }

    .feature-card h3 {
      margin-bottom: 8px;
    }

    .feature-card p {
      color: var(--muted);
      font-size: .95rem;
      margin-bottom: 0;
    }

    .var-1 {
      border-top: 5px solid var(--primary);
    }

    .var-2::before {
      content: "推荐";
      position: absolute;
      top: 12px;
      right: -26px;
      background: var(--accent);
      color: #fff;
      transform: rotate(38deg);
      padding: 3px 28px;
      font-size: .72rem;
      letter-spacing: .04em;
      box-shadow: 0 4px 10px rgba(199, 131, 43, .2);
    }

    .var-3 {
      background-image: radial-gradient(rgba(62, 106, 126, .16) 1px, transparent 1px);
      background-size: 20px 20px;
    }

    .var-4::after {
      content: "04";
      position: absolute;
      right: 12px;
      bottom: -16px;
      font-size: 4.6rem;
      font-weight: 800;
      color: rgba(62, 106, 126, .08);
      line-height: 1;
    }

    .section-timeline {
      background: #fff;
    }

    .timeline-wrap {
      max-width: 960px;
      margin: 0 auto;
    }

    .tl-row {
      display: grid;
      grid-template-columns: 160px 1fr;
      gap: 20px;
      padding: 8px 0 28px;
      position: relative;
    }

    .tl-date-col {
      padding-top: 6px;
    }

    .tl-date {
      display: block;
      font-weight: 700;
      color: var(--ink);
      font-size: 1.02rem;
      line-height: 1.4;
    }

    .tl-tag {
      display: inline-block;
      margin-top: 8px;
      padding: 3px 10px;
      background: var(--primary-soft);
      color: var(--primary-deep);
      border-radius: 4px;
      font-size: .8rem;
    }

    .tl-card {
      background: #fff;
      border: 1px solid var(--border);
      border-left: 4px solid var(--accent);
      border-radius: 6px 14px 14px 6px;
      box-shadow: var(--shadow);
      padding: 24px 26px;
    }

    .tl-card h3 {
      margin-bottom: 10px;
    }

    .tl-card p {
      color: var(--muted);
      margin-bottom: 0;
    }

    .tl-card .more-link {
      display: inline-block;
      margin-top: 14px;
      font-weight: 600;
    }

    .visual-split {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 30px;
      align-items: center;
    }

    .visual-masonry {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
    }

    .visual-masonry .cell-large {
      grid-row: span 2;
    }

    .visual-card {
      position: relative;
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow);
    }

    .visual-card img {
      width: 100%;
      height: 100%;
      min-height: 220px;
      object-fit: cover;
      transition: transform .35s ease;
    }

    .visual-card:hover img {
      transform: scale(1.04);
    }

    .visual-mask {
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      padding: 22px 20px 16px;
      background: linear-gradient(to top, rgba(18, 46, 61, .9), transparent);
      color: #fff;
    }

    .visual-mask .mask-tag {
      font-size: .78rem;
      color: var(--accent-soft);
      letter-spacing: .05em;
    }

    .visual-mask h3 {
      color: #fff;
      font-size: 1.1rem;
      margin-bottom: 0;
    }

    .steps-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 12px;
    }

    .process-card {
      position: relative;
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: var(--radius-card);
      padding: 30px 24px 28px;
      box-shadow: 0 3px 10px rgba(34, 84, 100, .05);
    }

    .process-card .step {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary);
      opacity: .16;
      line-height: 1;
      margin-bottom: 14px;
    }

    .process-card h3 {
      margin-bottom: 10px;
    }

    .process-card p {
      color: var(--muted);
      font-size: .95rem;
      margin-bottom: 0;
    }

    .faq-list {
      max-width: 820px;
      margin: 0 auto;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 18px;
      padding: 4px 30px;
      box-shadow: 0 4px 16px rgba(34, 84, 100, .04);
    }

    .acc-item {
      border-bottom: 1px solid var(--line);
    }

    .acc-item:last-child {
      border-bottom: 0;
    }

    .acc-item summary {
      list-style: none;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      cursor: pointer;
      padding: 22px 0;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--ink);
      transition: color .18s ease;
    }

    .acc-item summary::-webkit-details-marker {
      display: none;
    }

    .acc-item summary:after {
      content: "+";
      font-size: 1.6rem;
      font-weight: 400;
      color: var(--primary);
      width: 28px;
      height: 28px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      background: var(--primary-soft);
      transition: background .2s, transform .2s;
    }

    .acc-item summary:hover {
      color: var(--primary-deep);
    }

    .acc-item[open] summary {
      color: var(--primary-deep);
    }

    .acc-item[open] summary:after {
      content: "×";
      background: var(--primary);
      color: #fff;
    }

    .acc-copy {
      padding: 0 42px 22px 0;
      color: var(--muted);
      line-height: 1.85;
    }

    .cta-section {
      padding: 50px 0 90px;
    }

    .cta-card {
      background-color: var(--primary-deep);
      background-image: url('/assets/images/backpic/back-2.webp');
      background-position: right center;
      background-size: cover;
      color: #fff;
      border-radius: 22px;
      padding: clamp(32px, 5vw, 58px);
      box-shadow: var(--shadow-lg);
      position: relative;
      overflow: hidden;
    }

    .cta-card::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(30, 71, 89, .96) 20%, rgba(30, 71, 89, .78) 100%);
      border-radius: 22px;
    }

    .cta-inner {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: .92fr 1.08fr;
      gap: 42px;
      align-items: center;
    }

    .cta-copy h2 {
      color: #fff;
      margin-bottom: 16px;
    }

    .cta-copy p {
      color: rgba(255, 255, 255, .86);
      margin-bottom: 18px;
    }

    .cta-note {
      font-size: .88rem;
      color: rgba(255, 255, 255, .65);
      margin-top: 16px;
    }

    .cta-form {
      background: #fff;
      border-radius: 18px;
      box-shadow: 0 20px 42px rgba(8, 30, 43, .18);
      padding: 30px;
    }

    .cta-form .form-title {
      color: var(--ink);
      font-weight: 700;
      font-size: 1.14rem;
      margin-bottom: 18px;
    }

    .form-group {
      margin-bottom: 16px;
    }

    .form-group label {
      display: block;
      font-size: .92rem;
      font-weight: 600;
      color: var(--ink);
      margin-bottom: 6px;
    }

    .form-group input,
    .form-group textarea {
      width: 100%;
      height: 46px;
      border: 1px solid #C6D5DC;
      border-radius: 8px;
      padding: 0 14px;
      color: var(--ink);
      background: #fff;
      transition: border-color .18s, box-shadow .18s;
    }

    .form-group textarea {
      height: 96px;
      padding: 12px 14px;
      resize: vertical;
    }

    .form-group input:focus,
    .form-group textarea:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(62, 106, 126, .16);
    }

    .cta-form .btn {
      width: 100%;
      height: 50px;
    }

    .form-success,
    .form-error {
      display: none;
      margin-top: 14px;
      padding: 10px 14px;
      border-radius: 8px;
      font-size: .9rem;
      line-height: 1.6;
    }

    .form-success {
      background: #E7F5EC;
      color: #26704A;
    }

    .form-error {
      background: #FCEBEC;
      color: #AC3940;
    }

    .site-footer {
      background: #EDF3F6;
      border-top: 4px solid var(--secondary);
      position: relative;
    }

    .site-footer::before {
      content: "";
      display: block;
      height: 4px;
      background: var(--primary);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
      gap: 40px;
      padding: 48px 0 42px;
    }

    .footer-brand .brand {
      margin-bottom: 14px;
    }

    .footer-desc {
      color: var(--muted);
      font-size: .92rem;
      margin-bottom: 16px;
    }

    .footer-seal {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 40px;
      padding: 6px 14px;
      font-size: .84rem;
      color: var(--primary-deep);
    }

    .site-footer .footer-title {
      font-size: 1.02rem;
      color: var(--ink);
      margin-bottom: 14px;
    }

    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .footer-links li {
      margin-bottom: 10px;
    }

    .footer-links a {
      color: var(--muted);
    }

    .footer-links a:hover,
    .footer-links a:focus {
      color: var(--primary);
    }

    .footer-contact {
      color: var(--muted);
      font-size: .92rem;
      line-height: 1.9;
      margin-bottom: 0;
    }

    .footer-bottom {
      border-top: 1px solid var(--line);
      padding: 18px 0 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      color: var(--muted);
      font-size: .88rem;
      flex-wrap: wrap;
    }

    .footer-bottom .legal {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    @media (max-width: 1024px) {
      .main-nav,
      .header-cta {
        display: none;
      }

      .nav-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
      }

      .hero-inner {
        grid-template-columns: 1fr;
        gap: 30px;
      }

      .hero-note {
        max-width: 560px;
      }

      .visual-split {
        grid-template-columns: 1fr;
      }

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

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

      .header-inner {
        padding: 0 16px;
      }

      .brand-sub {
        font-size: .78rem;
      }

      .brand-main {
        font-size: 1.1rem;
      }

      .hero-inner {
        padding: 48px 16px 56px;
      }

      .tl-row {
        grid-template-columns: 1fr;
        gap: 10px;
        padding-bottom: 20px;
      }

      .faq-list {
        padding: 4px 20px;
      }

      .cta-card {
        padding: 28px 20px;
      }

      .cta-inner {
        grid-template-columns: 1fr;
      }

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

    @media (max-width: 520px) {
      .hero-actions .btn {
        width: 100%;
      }

      .grid-container {
        padding-left: 16px;
        padding-right: 16px;
      }

      .section-head {
        margin-bottom: 30px;
      }

      .visual-masonry {
        grid-template-columns: 1fr;
      }

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

      .footer-bottom {
        flex-direction: column;
        justify-content: center;
        text-align: center;
      }

      .btn-outline,
      .btn-accent {
        min-height: 48px;
      }
    }

/* roulang page: category2 */
:root {
      --brand: #32647a;
      --brand-deep: #1f4559;
      --brand-dark: #16384b;
      --brand-mist: #eef5f7;
      --brand-muted: #dceaf0;
      --accent: #c9882e;
      --accent-light: #f3dfc5;
      --accent-text: #35260f;
      --bg: #f4f7f9;
      --white: #ffffff;
      --text: #21363e;
      --muted: #66808a;
      --line: rgba(47, 96, 117, 0.16);
      --shadow-1: 0 6px 18px rgba(29, 65, 82, 0.08);
      --shadow-2: 0 14px 30px rgba(29, 65, 82, 0.13);
      --radius: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --space-section: 104px;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "SF Pro SC", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      background-color: var(--bg);
      color: var(--text);
      font-size: 16px;
      line-height: 1.72;
    }

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

    a {
      color: inherit;
      text-decoration: none;
    }

    button,
    input,
    select,
    textarea {
      font-family: inherit;
    }

    button {
      cursor: pointer;
      border: 0;
    }

    ul,
    ol {
      padding: 0;
    }

    h1,
    h2,
    h3,
    h4,
    p,
    figure {
      margin-top: 0;
    }

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

    .site-header {
      position: relative;
      height: 72px;
      background: var(--white);
      border-bottom: 1px solid var(--line);
      z-index: 50;
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 20px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 13px;
      background: linear-gradient(145deg, #f0b45d, #c9882e);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #2d2313;
      font-size: 19px;
      box-shadow: 0 7px 14px rgba(201, 136, 46, 0.28);
    }

    .brand-word {
      display: flex;
      flex-direction: column;
      line-height: 1.1;
    }

    .brand-sub {
      font-size: 13px;
      font-weight: 700;
      color: var(--brand);
      letter-spacing: 1px;
    }

    .brand-main {
      font-size: 20px;
      font-weight: 800;
      color: var(--brand-dark);
      letter-spacing: 0.2px;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 6px;
      margin-left: auto;
    }

    .nav-link {
      padding: 9px 16px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 500;
      color: #314d5a;
      transition: background-color .2s ease, color .2s ease;
      position: relative;
    }

    .nav-link:hover {
      background: var(--brand-mist);
      color: var(--brand-deep);
    }

    .nav-link:focus-visible,
    .header-cta:focus-visible,
    .brand:focus-visible,
    .nav-toggle:focus-visible,
    .site-footer a:focus-visible {
      outline: 3px solid rgba(50, 100, 122, 0.45);
      outline-offset: 3px;
    }

    .nav-link.active {
      background: rgba(50, 100, 122, 0.15);
      color: var(--brand-dark);
      font-weight: 700;
    }

    .nav-link.active::after {
      content: "";
      position: absolute;
      left: 50%;
      bottom: -1px;
      transform: translateX(-50%);
      width: 22px;
      height: 3px;
      border-radius: 3px;
      background: var(--accent);
    }

    .header-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 0 20px;
      border-radius: 10px;
      background: var(--accent);
      color: var(--accent-text);
      font-size: 15px;
      font-weight: 700;
      white-space: nowrap;
      transition: transform .2s ease, box-shadow .2s ease;
      box-shadow: 0 8px 18px rgba(201, 136, 46, 0.28);
    }

    .header-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 24px rgba(201, 136, 46, 0.36);
    }

    .header-cta:active {
      transform: translateY(0);
      box-shadow: 0 4px 10px rgba(201, 136, 46, 0.3);
    }

    .nav-cta-mobile {
      display: none !important;
    }

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: var(--brand-mist);
      color: var(--brand-deep);
      font-size: 20px;
      align-items: center;
      justify-content: center;
    }

    .page-banner {
      position: relative;
      background-color: var(--brand-mist);
      background-image: linear-gradient(110deg, rgba(244, 248, 249, 0.98) 0%, rgba(238, 245, 247, 0.94) 48%, rgba(224, 237, 241, 0.72) 100%), url("/assets/images/backpic/back-1.webp");
      background-position: center;
      background-size: cover;
      padding-top: 48px;
      padding-bottom: 56px;
      border-bottom: 1px solid var(--line);
    }

    .crumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--muted);
      margin-bottom: 24px;
    }

    .crumb a {
      color: var(--brand);
      font-weight: 600;
    }

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

    .page-banner h1 {
      max-width: 760px;
      font-size: clamp(32px, 4.6vw, 48px);
      line-height: 1.2;
      color: var(--brand-dark);
      font-weight: 800;
      letter-spacing: -0.5px;
      margin-bottom: 14px;
    }

    .banner-lead {
      max-width: 660px;
      color: #3d5a66;
      font-size: 17px;
      line-height: 1.8;
      margin-bottom: 24px;
    }

    .banner-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 24px;
    }

    .b-btn-primary,
    .b-btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 48px;
      padding: 0 24px;
      border-radius: 10px;
      font-size: 15px;
      font-weight: 700;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }

    .b-btn-primary {
      background: var(--accent);
      color: var(--accent-text);
      box-shadow: 0 10px 22px rgba(201, 136, 46, 0.28);
    }

    .b-btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 28px rgba(201, 136, 46, 0.36);
    }

    .b-btn-outline {
      border: 1px solid rgba(50, 100, 122, 0.4);
      color: var(--brand-deep);
      background: rgba(255, 255, 255, 0.68);
      backdrop-filter: blur(2px);
    }

    .b-btn-outline:hover {
      border-color: var(--brand);
      background: var(--white);
    }

    .marker {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--brand);
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .marker i {
      color: var(--accent);
    }

    .guide-shell {
      padding-top: 60px;
      padding-bottom: 30px;
    }

    .guide-layout {
      display: grid;
      grid-template-columns: 270px minmax(0, 1fr);
      gap: 44px;
      align-items: start;
    }

    .toc-card {
      position: sticky;
      top: 96px;
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow-1);
      padding: 24px 20px;
    }

    .toc-title {
      font-size: 16px;
      font-weight: 800;
      color: var(--brand-dark);
      border-left: 4px solid var(--accent);
      padding-left: 12px;
      margin-bottom: 18px;
    }

    .toc-list {
      list-style: none;
      margin: 0;
    }

    .toc-list li + li {
      margin-top: 4px;
    }

    .toc-link {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 8px 10px;
      border-radius: 9px;
      color: #375a69;
      font-size: 14px;
      font-weight: 500;
      transition: background .2s, color .2s;
    }

    .toc-link::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: transparent;
      border: 2px solid var(--brand-muted);
      flex: 0 0 7px;
      transition: all .2s;
    }

    .toc-link:hover {
      background: var(--brand-mist);
      color: var(--brand-deep);
    }

    .toc-link.active {
      background: rgba(50, 100, 122, 0.14);
      color: var(--brand-dark);
      font-weight: 700;
    }

    .toc-link.active::before {
      background: var(--accent);
      border-color: var(--accent);
    }

    .guide-main {
      display: flex;
      flex-direction: column;
      gap: 44px;
      min-width: 0;
    }

    .chapter {
      scroll-margin-top: 110px;
    }

    .chapter-card {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow-1);
      padding: 30px 28px;
    }

    .chapter-head {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      margin-bottom: 26px;
    }

    .chapter-index {
      font-size: 14px;
      font-weight: 800;
      color: var(--accent);
      background: var(--accent-light);
      border-radius: 8px;
      padding: 5px 10px;
      line-height: 1.2;
      flex-shrink: 0;
    }

    .chapter h2 {
      font-size: 24px;
      font-weight: 800;
      color: var(--brand-dark);
      margin-bottom: 6px;
    }

    .chapter-sub {
      color: var(--muted);
      font-size: 15px;
    }

    .mini-trio {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }

    .mini-card {
      background: #fbfdfe;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 20px 18px;
      position: relative;
    }

    .mini-card:nth-child(1) {
      border-left: 5px solid var(--brand);
    }

    .mini-card:nth-child(3) {
      background-image: radial-gradient(rgba(50, 100, 122, 0.14) 1px, transparent 1px);
      background-size: 12px 12px;
    }

    .mini-icon {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: var(--brand-mist);
      color: var(--brand);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      margin-bottom: 12px;
    }

    .mini-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--brand-dark);
      margin-bottom: 6px;
    }

    .mini-card p,
    .text-block p {
      font-size: 14.5px;
      line-height: 1.75;
      color: #466672;
      margin-bottom: 0;
    }

    .step-list {
      list-style: none;
      counter-reset: step;
      margin: 0;
    }

    .step-item {
      position: relative;
      counter-increment: step;
      padding: 4px 0 22px 54px;
      border-bottom: 1px solid var(--line);
      margin-bottom: 20px;
    }

    .step-item:last-child {
      border-bottom: 0;
      padding-bottom: 4px;
      margin-bottom: 0;
    }

    .step-item::before {
      content: counter(step, decimal-leading-zero);
      position: absolute;
      left: 0;
      top: 0;
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: var(--brand-deep);
      color: #fff;
      font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
      font-weight: 700;
      font-size: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 6px 14px rgba(31, 69, 89, 0.28);
    }

    .step-item h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--brand-dark);
      margin-bottom: 4px;
    }

    .step-item p {
      color: #48636e;
      margin-bottom: 0;
    }

    .mono-domain {
      font-weight: 700;
      color: var(--brand);
      background: var(--brand-mist);
      border: 1px solid rgba(50, 100, 122, 0.16);
      padding: 1px 8px;
      border-radius: 6px;
      font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
      word-break: break-all;
    }

    .map-grid {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 26px;
      align-items: center;
    }

    .map-figure {
      border-radius: 14px;
      overflow: hidden;
      box-shadow: var(--shadow-1);
    }

    .map-figure img {
      width: 100%;
      height: 240px;
      object-fit: cover;
    }

    .map-caption {
      background: var(--brand-mist);
      padding: 8px 12px;
      font-size: 13px;
      color: var(--muted);
      text-align: center;
    }

    .function-list {
      list-style: none;
      margin: 0;
    }

    .function-list li {
      display: flex;
      gap: 12px;
      padding: 0 0 14px;
      margin-bottom: 12px;
      border-bottom: 1px dashed rgba(50, 100, 122, 0.16);
    }

    .function-list li:last-child {
      border-bottom: 0;
      margin-bottom: 0;
    }

    .function-icon {
      width: 28px;
      height: 28px;
      flex: 0 0 28px;
      border-radius: 8px;
      background: var(--accent-light);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
    }

    .function-list strong {
      display: block;
      color: var(--brand-dark);
      font-size: 15px;
      margin-bottom: 2px;
    }

    .function-list span {
      font-size: 14px;
      color: #52707d;
    }

    .channel-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .channel-card {
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: #fbfdfe;
      padding: 20px;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s;
    }

    .channel-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-2);
      border-color: rgba(50, 100, 122, 0.4);
    }

    .channel-card h3 {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 17px;
      font-weight: 800;
      color: var(--brand-dark);
      margin-bottom: 8px;
    }

    .channel-card h3 i {
      color: var(--accent);
      font-size: 15px;
    }

    .channel-card p {
      font-size: 14px;
      color: #556b74;
      margin-bottom: 0;
      line-height: 1.7;
    }

    .guide-note {
      margin: 34px 0 0;
      background: var(--brand-mist);
      border: 1px solid var(--line);
      border-left: 5px solid var(--accent);
      border-radius: var(--radius-md);
      padding: 18px 22px 16px;
      color: var(--brand-dark);
    }

    .guide-note p {
      margin-bottom: 4px;
      font-weight: 600;
    }

    .guide-note a {
      color: var(--brand);
      font-weight: 700;
      border-bottom: 1px solid rgba(50, 100, 122, 0.3);
    }

    .guide-note a:hover {
      color: var(--accent);
    }

    .guide-quote {
      padding: var(--space-section) 0 90px;
      scroll-margin-top: 90px;
    }

    .quote-box {
      background: var(--brand-dark);
      border-radius: 24px;
      padding: 40px 44px;
      display: grid;
      grid-template-columns: auto 1fr auto;
      gap: 24px;
      align-items: center;
      color: #fff;
      box-shadow: 0 18px 40px rgba(22, 56, 75, 0.24);
    }

    .quote-icon {
      width: 52px;
      height: 52px;
      background: var(--accent);
      color: var(--accent-text);
      border-radius: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      box-shadow: 0 8px 20px rgba(201, 136, 46, 0.4);
    }

    .quote-box blockquote {
      margin: 0;
    }

    .quote-box p {
      font-size: 18px;
      font-weight: 700;
      line-height: 1.6;
      margin-bottom: 4px;
    }

    .quote-box span {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.72);
    }

    .quote-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0 22px;
      background: #fff;
      color: var(--brand-dark);
      border-radius: 10px;
      font-size: 14px;
      font-weight: 700;
      transition: transform .2s ease, background .2s ease;
      white-space: nowrap;
      box-shadow: none;
      text-decoration: none;
    }

    .quote-cta:hover {
      transform: translateY(-2px);
      background: var(--accent-light);
      color: var(--brand-dark);
    }

    .guide-faq {
      background: #ebf1f3;
      padding: 76px 0 var(--space-section);
      scroll-margin-top: 88px;
    }

    .section-head {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 40px;
    }

    .section-head .eyebrow {
      color: var(--accent);
      font-size: 14px;
      font-weight: 800;
      letter-spacing: 1px;
      text-transform: uppercase;
    }

    .section-head h2 {
      font-size: clamp(28px, 4vw, 38px);
      font-weight: 800;
      color: var(--brand-dark);
      margin: 8px 0 10px;
    }

    .section-head p {
      color: #56717c;
      font-size: 16px;
      margin-bottom: 0;
    }

    .accordion.faq-accordion {
      list-style: none;
      background: transparent;
      max-width: 860px;
      margin: 0 auto;
      border-radius: var(--radius);
    }

    .accordion.faq-accordion .accordion-item {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: 12px;
      box-shadow: none;
      margin-bottom: 12px;
      overflow: hidden;
    }

    .accordion.faq-accordion .accordion-item.is-active {
      border-color: rgba(50, 100, 122, 0.32);
      box-shadow: var(--shadow-1);
    }

    .accordion.faq-accordion .accordion-title {
      display: block;
      position: relative;
      padding: 18px 52px 18px 20px;
      background: var(--white);
      border-radius: 0;
      color: #1c3b49;
      font-size: 16px;
      font-weight: 700;
      line-height: 1.5;
    }

    .accordion.faq-accordion .accordion-title:hover {
      background: var(--brand-mist);
    }

    .accordion.faq-accordion .accordion-title:focus-visible {
      outline: 3px solid rgba(50, 100, 122, 0.45);
      outline-offset: 2px;
    }

    .accordion.faq-accordion .accordion-title::after {
      content: "\f067";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      position: absolute;
      right: 20px;
      top: 50%;
      transform: translateY(-50%);
      width: 28px;
      height: 28px;
      border-radius: 8px;
      background: var(--brand-mist);
      color: var(--brand);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      transition: transform .2s ease, background .2s ease, color .2s;
    }

    .accordion.faq-accordion .accordion-item.is-active .accordion-title::after {
      content: "\f068";
      background: var(--accent-light);
      color: var(--accent);
    }

    .accordion.faq-accordion .accordion-content {
      padding: 2px 22px 22px;
      border-top: 0;
      background: var(--white);
      line-height: 1.8;
      color: #4b6b78;
      font-size: 15px;
    }

    .feedback-zone {
      padding: var(--space-section) 0;
      scroll-margin-top: 90px;
    }

    .feedback-card {
      background: var(--brand-dark);
      border-radius: 26px;
      padding: 46px 48px;
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 42px;
      color: #fff;
      position: relative;
      overflow: hidden;
      box-shadow: 0 22px 48px rgba(22, 56, 75, 0.28);
    }

    .feedback-card::before {
      content: "";
      position: absolute;
      width: 220px;
      height: 220px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.06);
      right: -80px;
      top: -80px;
    }

    .feedback-intro {
      position: relative;
    }

    .feedback-intro .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(201, 136, 46, 0.18);
      color: #f3c37e;
      padding: 6px 12px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 700;
    }

    .feedback-intro h2 {
      font-size: clamp(25px, 3vw, 34px);
      font-weight: 800;
      margin: 18px 0 14px;
      line-height: 1.3;
    }

    .feedback-intro p {
      color: rgba(255, 255, 255, 0.72);
      font-size: 15px;
      line-height: 1.8;
      margin-bottom: 22px;
    }

    .feedback-intro .note-list {
      list-style: none;
      margin: 0;
    }

    .feedback-intro .note-list li {
      display: flex;
      gap: 10px;
      align-items: center;
      color: rgba(255, 255, 255, 0.78);
      font-size: 14px;
      margin-bottom: 10px;
    }

    .feedback-intro .note-list i {
      color: var(--accent);
    }

    .feedback-form-wrap {
      background: var(--white);
      border-radius: 18px;
      padding: 30px;
      color: var(--text);
      box-shadow: 0 14px 32px rgba(0, 0, 0, 0.15);
    }

    .form-field {
      margin-bottom: 18px;
    }

    .form-field label,
    .form-field .label {
      display: block;
      font-size: 14px;
      font-weight: 700;
      color: var(--brand-dark);
      margin-bottom: 7px;
    }

    .form-field input,
    .form-field textarea,
    .form-field select {
      width: 100%;
      min-height: 46px;
      border: 1px solid #c3d4da;
      background: #fbfdfe;
      border-radius: 9px;
      padding: 10px 14px;
      color: var(--text);
      font-size: 15px;
      transition: border .2s, box-shadow .2s;
      appearance: none;
    }

    .form-field textarea {
      min-height: 92px;
      resize: vertical;
    }

    .form-field input:focus,
    .form-field textarea:focus {
      outline: none;
      border-color: var(--brand);
      box-shadow: 0 0 0 3px rgba(50, 100, 122, 0.24);
    }

    .form-submit-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
    }

    .form-submit {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 48px;
      padding: 0 24px;
      background: var(--accent);
      border-radius: 10px;
      color: var(--accent-text);
      font-size: 15px;
      font-weight: 800;
      transition: transform .2s, box-shadow .2s;
    }

    .form-submit:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 24px rgba(201, 136, 46, 0.38);
    }

    .form-status {
      font-size: 14px;
      font-weight: 600;
      color: var(--brand);
    }

    .form-status.success {
      color: #237456;
    }

    .form-status.error {
      color: #b64b50;
    }

    .site-footer {
      background: #e8f0f3;
      border-top: 4px solid var(--brand-deep);
      padding-top: 56px;
      color: #31505a;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 34px;
      padding-bottom: 34px;
    }

    .footer-brand .brand {
      margin-bottom: 14px;
      display: inline-flex;
    }

    .footer-desc {
      font-size: 14px;
      color: #5b7680;
      line-height: 1.8;
      margin-bottom: 14px;
    }

    .footer-seal {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      background: var(--white);
      border: 1px solid var(--line);
      color: var(--brand);
      font-size: 13px;
      font-weight: 700;
      border-radius: 8px;
      padding: 6px 11px;
    }

    .footer-title {
      font-size: 15px;
      font-weight: 800;
      color: var(--brand-dark);
      margin-bottom: 16px;
    }

    .footer-links {
      list-style: none;
      margin: 0;
    }

    .footer-links li + li {
      margin-top: 10px;
    }

    .footer-links li a {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #4b6b75;
      font-size: 14px;
      transition: color .2s, padding-left .2s;
    }

    .footer-links li a:hover {
      color: var(--brand);
    }

    .footer-links li a::before {
      content: "";
      width: 5px;
      height: 5px;
      border-radius: 50%;
      background: var(--accent);
      opacity: 0.7;
    }

    .footer-contact {
      font-size: 14px;
      color: #5f7880;
      line-height: 1.9;
      margin-bottom: 0;
    }

    .footer-bottom {
      border-top: 1px solid rgba(22, 56, 75, 0.1);
      padding: 18px 0 24px;
      font-size: 13px;
      color: #79919a;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: space-between;
    }

    .footer-bottom .legal {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .footer-bottom a {
      color: var(--brand);
    }

    .footer-bottom a:hover {
      color: var(--accent);
    }

    .back-top {
      position: fixed;
      right: 20px;
      bottom: 20px;
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: var(--brand-deep);
      box-shadow: 0 8px 18px rgba(22, 56, 75, 0.32);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 30;
      opacity: 0;
      pointer-events: none;
      transition: opacity .3s, transform .2s;
    }

    .back-top.show {
      opacity: 1;
      pointer-events: auto;
    }

    .back-top:hover {
      transform: translateY(-2px);
    }

    @media screen and (max-width: 1090px) {
      .container {
        padding-left: 20px;
        padding-right: 20px;
      }

      .main-nav {
        gap: 2px;
      }

      .nav-link {
        padding: 9px 12px;
        font-size: 14px;
      }

      .guide-layout {
        grid-template-columns: 230px minmax(0, 1fr);
        gap: 28px;
      }

      .mini-trio {
        grid-template-columns: 1fr;
        gap: 12px;
      }

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

      .quote-box {
        grid-template-columns: 1fr;
        text-align: center;
      }

      .quote-icon {
        margin: 0 auto;
      }

      .channel-list {
        grid-template-columns: 1fr;
      }

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

    @media screen and (max-width: 960px) {
      .nav-toggle {
        display: inline-flex;
      }

      .main-nav {
        position: absolute;
        top: 72px;
        left: 16px;
        right: 16px;
        z-index: 1050;
        background: var(--white);
        border: 1px solid var(--line);
        box-shadow: var(--shadow-2);
        border-radius: 16px;
        margin-left: 0;
        padding: 14px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
      }

      .main-nav.open {
        display: flex;
      }

      .main-nav .nav-link {
        border-radius: 10px;
        text-align: left;
      }

      .header-cta--desktop {
        display: none;
      }

      .nav-cta-mobile {
        display: flex !important;
        width: 100%;
        margin-top: 8px;
      }

      .nav-link.active::after {
        display: none;
      }

      .guide-layout {
        grid-template-columns: 1fr;
      }

      .toc-card {
        position: static;
      }

      .toc-list {
        display: flex;
        flex-wrap: wrap;
        gap: 4px;
      }

      .toc-link {
        padding: 6px 10px;
      }
    }

    @media screen and (max-width: 760px) {
      .site-header,
      .header-inner {
        height: 64px;
      }

      .main-nav {
        top: 64px;
      }

      .page-banner {
        padding-top: 36px;
        padding-bottom: 40px;
      }

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

      .guide-shell {
        padding-top: 42px;
      }

      .chapter-card {
        padding: 22px;
      }

      .chapter h2 {
        font-size: 21px;
      }

      .map-figure img {
        height: 190px;
      }

      .quote-box {
        padding: 30px 24px;
      }

      .feedback-zone {
        --space-section: 72px;
      }

      .guide-faq {
        padding-top: 56px;
      }

      .feedback-card {
        grid-template-columns: 1fr;
        padding: 28px 22px;
        gap: 24px;
      }

      .feedback-form-wrap {
        padding: 24px 18px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 26px;
      }

      .footer-bottom {
        flex-direction: column;
      }
    }

    @media screen and (max-width: 520px) {
      .container {
        padding-left: 14px;
        padding-right: 14px;
      }

      .brand-sub {
        font-size: 11px;
      }

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

      .brand-mark {
        width: 38px;
        height: 38px;
        font-size: 16px;
      }

      .header-cta {
        min-height: 44px;
        padding: 0 16px;
        font-size: 14px;
      }

      .page-banner h1 {
        font-size: 26px;
      }

      .chapter-head {
        flex-direction: column;
        gap: 6px;
      }

      .banner-actions a {
        width: 100%;
      }

      .map-figure img {
        height: 156px;
      }
    }