/* roulang page: index */
:root{
    --clr-bg:#F6F4EF;
    --clr-surface:#FFFFFF;
    --clr-ink:#1B1C1E;
    --clr-ink-soft:#4A4D52;
    --clr-ink-faint:#8A8D93;
    --clr-primary:#1F3B38;
    --clr-primary-dark:#152A28;
    --clr-accent:#B78A4A;
    --clr-accent-soft:#E9DCC9;
    --clr-line:#E3DED6;
    --clr-success-soft:#E4EDEB;
    --radius-lg:16px;
    --radius-md:8px;
    --radius-sm:6px;
    --shadow-card:0 4px 24px rgba(31,59,56,.06);
    --shadow-hover:0 12px 32px rgba(31,59,56,.12);
    --space-section:clamp(64px,8vw,120px);
    --ease:0.25s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
    font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    background:var(--clr-bg);
    color:var(--clr-ink);
    line-height:1.8;
    font-size:16px;
    -webkit-font-smoothing:antialiased;
}
a{color:var(--clr-ink);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--clr-primary);}
img{max-width:100%;display:block;}
ul,ol{list-style:none;}
button,input{font-family:inherit;border:none;background:none;}

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

/* ===== Header / Nav ===== */
.site-header{
    position:fixed;top:0;left:0;right:0;z-index:1000;
    background:var(--clr-surface);
    border-bottom:1px solid var(--clr-line);
    height:72px;
    display:flex;align-items:center;
}
.header-inner{
    display:flex;align-items:center;justify-content:space-between;
    width:100%;height:100%;
}
.nav-logo{
    font-size:24px;font-weight:800;color:var(--clr-primary);
    letter-spacing:-0.02em;line-height:1;
}
.nav-logo span{
    font-size:15px;font-weight:600;color:var(--clr-ink-faint);margin-left:4px;
    letter-spacing:0.02em;
}
.desktop-nav{display:flex;align-items:center;gap:36px;margin-left:44px;}
.desktop-nav a{
    font-size:15px;font-weight:500;color:var(--clr-ink-soft);
    padding:6px 2px;position:relative;
}
.desktop-nav a::after{
    content:"";position:absolute;left:0;bottom:-4px;
    width:0;height:2px;background:var(--clr-primary);
    transition:width var(--ease);
}
.desktop-nav a:hover{color:var(--clr-primary);}
.desktop-nav a:hover::after{width:100%;}
.desktop-nav a.active{color:var(--clr-primary);font-weight:600;}
.desktop-nav a.active::after{width:100%;}
.btn-nav-cta{
    display:inline-flex;align-items:center;justify-content:center;
    height:42px;padding:0 24px;border-radius:var(--radius-sm);
    background:var(--clr-accent);color:var(--clr-ink);
    font-weight:700;font-size:14px;letter-spacing:0.02em;
    transition:all var(--ease);border:1px solid transparent;
}
.btn-nav-cta:hover{
    background:#A3783C;color:var(--clr-ink);
    transform:translateY(-2px);
    box-shadow:0 6px 20px rgba(183,138,74,.25);
}
.navbar-toggler{
    width:44px;height:44px;display:flex;flex-direction:column;
    align-items:center;justify-content:center;gap:5px;
    border-radius:var(--radius-sm);
    transition:background var(--ease);
}
.navbar-toggler span{
    display:block;width:22px;height:2px;background:var(--clr-primary);
    border-radius:2px;
    transition:transform var(--ease),opacity var(--ease);
}
.navbar-toggler[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.navbar-toggler[aria-expanded="true"] span:nth-child(2){opacity:0;}
.navbar-toggler[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.mobile-nav{
    position:fixed;top:72px;left:0;right:0;bottom:0;
    background:var(--clr-surface);
    z-index:999;
    padding:40px 32px;
    display:flex;flex-direction:column;
    opacity:0;transform:translateY(-8px);
    transition:opacity .3s ease,transform .3s ease;
}
.mobile-nav.show{
    opacity:1;transform:translateY(0);
}
.mobile-nav-inner{display:flex;flex-direction:column;gap:8px;}
.mobile-nav-inner a{
    font-size:24px;font-weight:700;color:var(--clr-ink);
    padding:16px 8px;border-bottom:1px solid var(--clr-line);
}
.mobile-nav-inner a.active{color:var(--clr-primary);}
.btn-mobile-cta{
    margin-top:32px;height:56px;border-radius:var(--radius-sm);
    background:var(--clr-accent);color:var(--clr-ink);
    display:flex;align-items:center;justify-content:center;
    font-size:18px;font-weight:700;
}

/* ===== Hero ===== */
.hero{
    min-height:80vh;min-height:560px;
    display:flex;align-items:center;position:relative;
    background:linear-gradient(115deg,rgba(21,42,40,.82) 0%,rgba(21,42,40,.55) 60%,rgba(21,42,40,.35) 100%),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    padding:140px 0 100px;
    margin-top:72px;
}
.hero-content{max-width:640px;}
.hero-title{
    font-size:clamp(36px,5.6vw,64px);
    font-weight:800;line-height:1.15;letter-spacing:-0.02em;
    color:#fff;margin-bottom:24px;
}
.hero-subtitle{
    font-size:clamp(16px,2vw,19px);
    line-height:1.8;color:rgba(255,255,255,.88);
    margin-bottom:40px;max-width:520px;
}
.hero-cta{display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-bottom:64px;}
.btn-hero{
    display:inline-flex;align-items:center;justify-content:center;
    height:52px;padding:0 36px;border-radius:var(--radius-sm);
    background:var(--clr-accent);color:var(--clr-ink);
    font-weight:700;font-size:16px;
    transition:all var(--ease);border:1px solid transparent;
}
.btn-hero:hover{
    background:#A3783C;color:var(--clr-ink);
    transform:translateY(-2px);
    box-shadow:0 8px 28px rgba(183,138,74,.3);
}
.hero-link{
    color:#fff;font-size:15px;font-weight:500;
    border-bottom:1px solid rgba(255,255,255,.6);
    padding-bottom:3px;transition:border-color var(--ease),color var(--ease);
}
.hero-link:hover{color:var(--clr-accent-soft);border-color:var(--clr-accent-soft);}
.hero-stats{display:flex;gap:56px;flex-wrap:wrap;}
.stat-item .stat-num{
    font-size:40px;font-weight:800;color:var(--clr-accent);
    font-family:Georgia,serif;line-height:1.1;
}
.stat-item .stat-label{
    font-size:13px;color:rgba(255,255,255,.7);margin-top:4px;
    letter-spacing:0.04em;
}

/* ===== Section common ===== */
.section{padding:var(--space-section) 0;}
.section-head{margin-bottom:44px;}
.section-head .section-tag{
    display:inline-flex;align-items:center;
    font-size:12px;font-weight:600;letter-spacing:0.08em;
    color:var(--clr-primary);
    background:var(--clr-success-soft);
    border-radius:999px;padding:4px 16px;margin-bottom:16px;
}
.section-head h2{
    font-size:clamp(24px,3vw,36px);
    font-weight:700;letter-spacing:-0.02em;
    margin-bottom:12px;line-height:1.3;
}
.section-head .section-desc{
    color:var(--clr-ink-soft);font-size:16px;max-width:720px;
}

/* ===== Compare table ===== */
.compare-section{background:var(--clr-surface);border-top:1px solid var(--clr-line);border-bottom:1px solid var(--clr-line);}
.compare-table{width:100%;border-collapse:collapse;}
.compare-table th{
    padding:20px 16px;font-size:14px;font-weight:600;
    color:var(--clr-ink-soft);text-align:center;
    border-bottom:1px solid var(--clr-line);
    background:#FAF9F6;position:relative;
}
.compare-table th:first-child{text-align:left;background:transparent;}
.compare-table td{
    padding:20px 16px;text-align:center;
    border-bottom:1px solid var(--clr-line);
    font-size:15px;color:var(--clr-ink-soft);
}
.compare-table td:first-child{text-align:left;font-weight:500;color:var(--clr-ink);}
.compare-table tbody tr{transition:background var(--ease);}
.compare-table tbody tr:hover{background:#F6F4EF;}
.compare-table .col-gold{
    background:#FFFDF9;border-left:1px solid var(--clr-line);
    border-right:1px solid var(--clr-line);
}
.compare-table .col-gold th{
    background:#FFFDF9;border-top:3px solid var(--clr-accent);
    color:var(--clr-primary);font-weight:700;
}
.compare-table .col-gold td{background:#FFFDF9;}
.icon-check,.icon-cross{
    position:relative;display:inline-block;width:16px;height:16px;
}
.icon-check::before{
    content:"";position:absolute;left:1px;top:5px;
    width:11px;height:6px;
    border-left:2px solid var(--clr-primary);
    border-bottom:2px solid var(--clr-primary);
    transform:rotate(-45deg);
}
.icon-cross::before,.icon-cross::after{
    content:"";position:absolute;left:2px;top:7px;
    width:12px;height:2px;background:var(--clr-ink-faint);
}
.icon-cross::before{transform:rotate(45deg);}
.icon-cross::after{transform:rotate(-45deg);}
.badge-recommend{
    position:absolute;top:-10px;right:-4px;
    background:var(--clr-accent);color:var(--clr-ink);
    font-size:11px;font-weight:700;padding:3px 10px;
    border-radius:999px;letter-spacing:0.04em;
    box-shadow:0 4px 12px rgba(183,138,74,.3);
}
.compare-footer{
    margin-top:24px;text-align:right;
}
.compare-footer a{
    font-size:15px;font-weight:600;color:var(--clr-primary);
    display:inline-flex;align-items:center;gap:6px;
}
.compare-footer a:hover{color:var(--clr-accent);}
.compare-footer a i{transition:transform var(--ease);}
.compare-footer a:hover i{transform:translateX(4px);}

/* ===== Tier section ===== */
.tier-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.tier-card{
    background:var(--clr-surface);border-radius:var(--radius-lg);
    padding:40px 32px;box-shadow:var(--shadow-card);
    border:1px solid var(--clr-line);
    transition:all var(--ease);
    display:flex;flex-direction:column;
}
.tier-card:hover{
    box-shadow:var(--shadow-hover);transform:translateY(-4px);
}
.tier-card.featured{
    background:var(--clr-primary-dark);border-color:var(--clr-primary-dark);
    color:#fff;
}
.tier-card .tier-badge{
    display:inline-flex;align-self:flex-start;
    font-size:12px;font-weight:600;letter-spacing:0.08em;
    background:var(--clr-accent-soft);color:var(--clr-primary);
    border-radius:999px;padding:4px 14px;margin-bottom:20px;
}
.tier-card.featured .tier-badge{
    background:var(--clr-accent);color:var(--clr-ink);
}
.tier-card h3{
    font-size:clamp(22px,2vw,26px);font-weight:700;
    margin-bottom:8px;
}
.tier-card .tier-sub{
    font-size:14px;color:var(--clr-ink-faint);margin-bottom:28px;
}
.tier-card.featured .tier-sub{color:rgba(255,255,255,.65);}
.tier-list{display:flex;flex-direction:column;gap:14px;margin-bottom:32px;flex-grow:1;}
.tier-list li{
    display:flex;align-items:flex-start;gap:10px;
    font-size:15px;color:var(--clr-ink-soft);
}
.tier-card.featured .tier-list li{color:rgba(255,255,255,.82);}
.tier-list li i{
    color:var(--clr-accent);font-size:14px;margin-top:5px;
    flex-shrink:0;
}
.tier-card.featured .tier-list li i{color:var(--clr-accent);}
.tier-link{
    font-size:14px;font-weight:600;color:var(--clr-primary);
    border-top:1px solid var(--clr-line);padding-top:20px;
    display:flex;align-items:center;gap:6px;
}
.tier-card.featured .tier-link{color:var(--clr-accent-soft);border-color:rgba(255,255,255,.15);}
.tier-link i{transition:transform var(--ease);font-size:12px;}
.tier-link:hover i{transform:translateX(4px);}

/* ===== Preview section ===== */
.preview-section{background:var(--clr-surface);border-top:1px solid var(--clr-line);border-bottom:1px solid var(--clr-line);}
.preview-scroll{
    display:flex;gap:24px;overflow-x:auto;
    padding-bottom:20px;scrollbar-width:none;
}
.preview-scroll::-webkit-scrollbar{display:none;}
.preview-card{
    min-width:320px;max-width:320px;
    background:var(--clr-surface);border-radius:var(--radius-lg);
    border:1px solid var(--clr-line);
    overflow:hidden;box-shadow:var(--shadow-card);
    transition:all var(--ease);
    display:flex;flex-direction:column;
}
.preview-card:hover{
    box-shadow:var(--shadow-hover);transform:translateY(-4px);
}
.preview-cover{
    position:relative;aspect-ratio:16/9;overflow:hidden;
}
.preview-cover img{
    width:100%;height:100%;object-fit:cover;
    transition:transform .5s ease;
}
.preview-card:hover .preview-cover img{transform:scale(1.03);}
.preview-lock{
    position:absolute;bottom:12px;right:12px;
    width:36px;height:36px;border-radius:50%;
    background:rgba(0,0,0,.55);color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-size:14px;backdrop-filter:blur(4px);
}
.preview-info{padding:20px 20px 24px;flex-grow:1;display:flex;flex-direction:column;}
.preview-info h3{
    font-size:18px;font-weight:700;margin-bottom:10px;line-height:1.4;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.preview-info p{
    font-size:14px;color:var(--clr-ink-soft);line-height:1.7;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
    flex-grow:1;
}
.preview-meta{
    font-size:12px;color:var(--clr-ink-faint);margin-top:16px;
    display:flex;align-items:center;gap:8px;
}

/* ===== News Section ===== */
.news-section-head{
    display:flex;align-items:flex-end;justify-content:space-between;
    margin-bottom:40px;flex-wrap:wrap;gap:16px;
}
.news-more{
    font-size:15px;font-weight:600;color:var(--clr-primary);
    display:inline-flex;align-items:center;gap:6px;
}
.news-more i{transition:transform var(--ease);}
.news-more:hover i{transform:translateX(4px);}
.news-large-card{
    background:var(--clr-surface);border-radius:var(--radius-lg);
    border:1px solid var(--clr-line);box-shadow:var(--shadow-card);
    overflow:hidden;transition:all var(--ease);
    height:100%;display:flex;flex-direction:column;
}
.news-large-card:hover{
    box-shadow:var(--shadow-hover);transform:translateY(-4px);
}
.news-large-cover{aspect-ratio:16/8;overflow:hidden;}
.news-large-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.news-large-card:hover .news-large-cover img{transform:scale(1.03);}
.news-large-body{padding:24px;display:flex;flex-direction:column;flex-grow:1;}
.news-large-body h3{
    font-size:19px;font-weight:700;line-height:1.45;margin-bottom:12px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-large-body p{
    font-size:14px;color:var(--clr-ink-soft);line-height:1.75;
    display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
    flex-grow:1;
}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:18px;}
.news-meta span{font-size:12px;color:var(--clr-ink-faint);}
.news-badge{
    display:inline-flex;align-items:center;
    background:var(--clr-surface);border:1px solid var(--clr-line);
    border-radius:999px;padding:2px 12px;font-size:12px;font-weight:600;
    color:var(--clr-ink-soft);
}
.news-row-card{
    background:var(--clr-surface);border-radius:var(--radius-lg);
    border:1px solid var(--clr-line);box-shadow:var(--shadow-card);
    padding:16px;display:flex;align-items:center;gap:24px;
    transition:all var(--ease);height:100%;
}
.news-row-card:hover{
    box-shadow:var(--shadow-hover);transform:translateY(-3px);
}
.news-row-cover{
    width:140px;height:90px;border-radius:var(--radius-md);
    overflow:hidden;flex-shrink:0;
}
.news-row-cover img{width:100%;height:100%;object-fit:cover;}
.news-row-body{flex:1;min-width:0;}
.news-row-body h3{
    font-size:16px;font-weight:700;line-height:1.4;margin-bottom:6px;
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.news-row-body p{
    font-size:14px;color:var(--clr-ink-soft);
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.news-row-meta{
    display:flex;align-items:center;gap:16px;margin-top:8px;
    flex-shrink:0;
}
.news-row-meta span{font-size:12px;color:var(--clr-ink-faint);}
.news-row-meta .news-badge{flex-shrink:0;}

/* Empty state */
.empty-state{
    text-align:center;padding:48px 24px;
    background:#F1EFEA;border-radius:12px;
    display:flex;flex-direction:column;align-items:center;gap:12px;
}
.empty-icon{
    width:56px;height:56px;border-radius:50%;
    border:2px dashed var(--clr-ink-faint);
    display:flex;align-items:center;justify-content:center;
    font-size:22px;font-weight:700;color:var(--clr-ink-faint);
    margin-bottom:4px;font-family:Georgia,serif;
}
.empty-state h3{font-size:20px;font-weight:700;color:var(--clr-ink);}
.empty-state p{font-size:14px;color:var(--clr-ink-faint);}

/* ===== FAQ ===== */
.faq-section{background:var(--clr-surface);border-top:1px solid var(--clr-line);border-bottom:1px solid var(--clr-line);}
.faq-left .section-tag{
    display:inline-flex;align-items:center;
    font-size:12px;font-weight:600;letter-spacing:0.08em;
    color:var(--clr-primary);
    background:var(--clr-success-soft);
    border-radius:999px;padding:4px 16px;margin-bottom:16px;
}
.faq-left h2{
    font-size:clamp(24px,3vw,36px);font-weight:700;
    letter-spacing:-0.02em;margin-bottom:16px;line-height:1.3;
}
.faq-left p{color:var(--clr-ink-soft);font-size:16px;margin-bottom:24px;}
.faq-left .faq-contact{
    font-size:14px;font-weight:600;color:var(--clr-primary);
    display:inline-flex;align-items:center;gap:6px;
}
.faq-left .faq-contact:hover{color:var(--clr-accent);}
.accordion-item{
    background:transparent;border:none;border-bottom:1px solid var(--clr-line);
    border-radius:0 !important;
}
.accordion-item:has(.accordion-button:not(.collapsed)){
    border-left:3px solid var(--clr-accent);
    padding-left:12px;
}
.accordion-button{
    background:transparent;color:var(--clr-ink);
    font-size:16px;font-weight:600;
    padding:22px 12px;
    box-shadow:none;position:relative;
}
.accordion-button:focus{box-shadow:none;outline:2px solid rgba(31,59,56,.2);outline-offset:2px;}
.accordion-button:not(.collapsed){
    background:transparent;color:var(--clr-primary);
    box-shadow:none;
}
.accordion-button::after{
    background-image:none;
    font-family:"Font Awesome 6 Free";
    font-weight:900;
    content:"\f078";
    color:var(--clr-primary);
    font-size:13px;
    transition:transform var(--ease);
}
.accordion-button:not(.collapsed)::after{
    transform:rotate(180deg);
    background-image:none;
    color:var(--clr-accent);
}
.accordion-body{
    padding:0 12px 24px;
    color:var(--clr-ink-soft);font-size:15px;line-height:1.85;
}

/* ===== CTA Section ===== */
.cta-section{padding:var(--space-section) 0;}
.cta-card{
    background:var(--clr-primary-dark);
    border-radius:var(--radius-lg);
    padding:clamp(40px,5vw,64px);
    border:1px solid var(--clr-accent);
    position:relative;overflow:hidden;
}
.cta-card::before{
    content:"";position:absolute;inset:10px;
    border:1px solid rgba(183,138,74,.35);
    border-radius:12px;pointer-events:none;
}
.cta-card h2{
    color:#fff;font-size:clamp(26px,3vw,36px);font-weight:700;
    letter-spacing:-0.02em;margin-bottom:12px;
}
.cta-card p{color:rgba(255,255,255,.75);font-size:16px;margin-bottom:0;}
.btn-cta-large{
    display:inline-flex;align-items:center;justify-content:center;
    height:56px;padding:0 44px;border-radius:var(--radius-sm);
    background:var(--clr-accent);color:var(--clr-ink);
    font-weight:700;font-size:17px;
    transition:all var(--ease);border:1px solid transparent;
    position:relative;z-index:2;white-space:nowrap;
}
.btn-cta-large:hover{
    background:#C79B5D;color:var(--clr-ink);
    transform:translateY(-2px);
    box-shadow:0 8px 30px rgba(183,138,74,.35);
    border:1px dashed var(--clr-accent);
}

/* ===== Footer ===== */
.site-footer{
    background:var(--clr-primary-dark);
    padding:80px 0 32px;color:rgba(255,255,255,.75);
}
.footer-brand .nav-logo{color:#fff;}
.footer-brand .nav-logo span{color:rgba(255,255,255,.45);}
.footer-desc{
    font-size:14px;line-height:1.8;margin-top:20px;
    color:rgba(255,255,255,.55);max-width:320px;
}
.footer-title{
    font-size:15px;font-weight:700;color:#fff;
    margin-bottom:24px;letter-spacing:0.02em;
}
.footer-links{display:flex;flex-direction:column;gap:14px;}
.footer-links a{
    color:rgba(255,255,255,.6);font-size:14px;
    transition:color var(--ease),padding-left var(--ease);
}
.footer-links a:hover{color:var(--clr-accent);padding-left:4px;}
.footer-contact{display:flex;flex-direction:column;gap:14px;}
.footer-contact .contact-item{
    display:flex;align-items:center;gap:12px;
    font-size:14px;color:rgba(255,255,255,.6);
}
.footer-contact .contact-item i{color:var(--clr-accent);width:18px;text-align:center;font-size:14px;}
.footer-bottom{
    border-top:1px solid rgba(255,255,255,.1);
    margin-top:56px;padding-top:24px;
    display:flex;align-items:center;justify-content:space-between;
    flex-wrap:wrap;gap:12px;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.4);margin:0;}

/* ===== Animations ===== */
.reveal{
    opacity:0;transform:translateY(12px);
    transition:opacity .6s ease,transform .6s ease;
}
.reveal.visible{opacity:1;transform:translateY(0);}

/* ===== Responsive ===== */
@media (max-width:991.98px){
    .desktop-nav{display:none;}
    .btn-nav-cta{display:none;}
    .header-inner{gap:16px;}
    .hero{padding:120px 0 80px;}
    .hero-stats{gap:40px;}
    .stat-num{font-size:32px;}
    .tier-grid{grid-template-columns:repeat(6,1fr);gap:20px;}
    .tier-card:nth-child(1){grid-column:span 6;}
    .tier-card:nth-child(2){grid-column:span 6;}
}
@media (max-width:767.98px){
    .hero{min-height:520px;}
    .hero-title{font-size:32px;}
    .hero-stats{flex-direction:column;gap:24px;}
    .hero-cta{flex-direction:column;align-items:stretch;}
    .btn-hero{width:100%;}
    .compare-section{overflow-x:auto;}
    .compare-table{min-width:720px;}
    .preview-scroll{gap:16px;}
    .preview-card{min-width:280px;max-width:280px;}
    .news-large-cover{aspect-ratio:16/9;}
    .news-row-card{flex-direction:column;align-items:stretch;}
    .news-row-cover{width:100%;height:auto;aspect-ratio:16/9;border-radius:var(--radius-sm);}
    .news-row-meta{flex-wrap:wrap;}
    .faq-section .faq-left{margin-bottom:32px;}
    .cta-card{padding:32px 20px;}
    .btn-cta-large{width:100%;}
    .site-footer{padding-top:56px;}
    .footer-bottom{flex-direction:column;text-align:center;}
}
@media (max-width:575.98px){
    .container{padding-left:16px;padding-right:16px;}
    .nav-logo{font-size:20px;}
    .nav-logo span{font-size:13px;}
    .hero-title{font-size:28px;}
    .hero-subtitle{font-size:15px;}
    .tier-grid{grid-template-columns:1fr;}
    .tier-card{padding:28px 20px;}
    .preview-card{min-width:240px;max-width:240px;}
}
@media (max-width:520px){
    .compare-section{padding-left:0;padding-right:0;}
    .section-head h2{font-size:24px;}
    .empty-state{padding:32px 16px;}
}

/* roulang page: article */
:root {
            --clr-bg: #F6F4EF;
            --clr-surface: #FFFFFF;
            --clr-ink: #1B1C1E;
            --clr-ink-soft: #4A4D52;
            --clr-ink-faint: #8A8D93;
            --clr-primary: #1F3B38;
            --clr-primary-dark: #152A28;
            --clr-accent: #B78A4A;
            --clr-accent-soft: #E9DCC9;
            --clr-line: #E3DED6;
            --radius-lg: 16px;
            --radius-md: 8px;
            --radius-sm: 6px;
            --shadow-card: 0 4px 24px rgba(31, 59, 56, .06);
            --shadow-hover: 0 12px 32px rgba(31, 59, 56, .12);
            --space-section: clamp(64px, 8vw, 120px);
        }
        *, *::before, *::after {
            box-sizing: border-box;
        }
        body {
            margin: 0;
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--clr-bg);
            color: var(--clr-ink);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--clr-ink);
            transition: color .25s ease;
        }
        a:hover {
            color: var(--clr-primary);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        a:focus-visible, button:focus-visible {
            outline: 2px solid var(--clr-accent);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 72px;
            background: rgba(255, 255, 255, .96);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--clr-line);
            z-index: 1030;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .nav-logo {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: .02em;
            color: var(--clr-primary);
            text-decoration: none;
            line-height: 1;
            display: inline-flex;
            align-items: baseline;
        }
        .nav-logo:hover {
            color: var(--clr-primary);
        }
        .nav-logo span {
            font-size: 15px;
            font-weight: 600;
            color: var(--clr-ink-soft);
            margin-left: 5px;
        }
        .desktop-nav {
            display: flex;
            gap: 36px;
            align-items: center;
        }
        .desktop-nav a {
            position: relative;
            color: var(--clr-ink-soft);
            font-size: 15px;
            font-weight: 600;
            text-decoration: none;
            padding: 8px 0;
            transition: color .25s ease;
        }
        .desktop-nav a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            height: 2px;
            width: 0;
            background: var(--clr-primary);
            transition: width .25s ease;
        }
        .desktop-nav a:hover {
            color: var(--clr-primary);
        }
        .desktop-nav a:hover::after,
        .desktop-nav a.active::after {
            width: 100%;
        }
        .desktop-nav a.active {
            color: var(--clr-primary);
        }
        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 42px;
            padding: 0 24px;
            background: var(--clr-accent);
            color: #1B1C1E;
            font-size: 14px;
            font-weight: 700;
            border-radius: var(--radius-sm);
            text-decoration: none;
            border: none;
            transition: background .25s ease, transform .25s ease, box-shadow .25s ease;
        }
        .btn-nav-cta:hover {
            background: #A3783C;
            color: #1B1C1E;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(183, 138, 74, .28);
        }
        .navbar-toggler {
            border: none;
            background: transparent;
            width: 44px;
            height: 44px;
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
        }
        .navbar-toggler span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--clr-primary);
            border-radius: 2px;
            transition: all .3s ease;
        }
        .navbar-toggler:hover span {
            background: var(--clr-accent);
        }

        .mobile-nav {
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            background: #FFFFFF;
            z-index: 1029;
            overflow-y: auto;
            opacity: 0;
            transform: translateY(-10px);
            pointer-events: none;
            transition: opacity .25s ease, transform .25s ease;
            box-shadow: 0 20px 40px rgba(21, 42, 40, .1);
        }
        .mobile-nav.show {
            opacity: 1;
            transform: none;
            pointer-events: auto;
        }
        .mobile-nav.collapse:not(.show) {
            display: none;
        }
        .mobile-nav.collapsing {
            transition: opacity .25s ease, transform .25s ease;
            height: auto !important;
        }
        .mobile-nav-inner {
            max-width: 520px;
            margin: 0 auto;
            padding: 32px 24px 56px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav-inner a {
            font-size: 22px;
            font-weight: 700;
            color: var(--clr-ink);
            text-decoration: none;
            padding: 16px 0;
            border-bottom: 1px solid var(--clr-line);
            transition: color .25s ease;
        }
        .mobile-nav-inner a:hover,
        .mobile-nav-inner a.active {
            color: var(--clr-primary);
        }
        .btn-mobile-cta {
            display: flex !important;
            align-items: center;
            justify-content: center;
            height: 52px;
            background: var(--clr-accent);
            color: #1B1C1E !important;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 700;
            text-decoration: none;
            margin-top: 24px;
            border: none;
            transition: background .25s ease;
        }
        .btn-mobile-cta:hover {
            background: #A3783C;
            color: #1B1C1E !important;
        }

        /* ===== 文章 Hero ===== */
        .article-hero {
            position: relative;
            background: linear-gradient(112deg, rgba(21, 42, 40, .88) 0%, rgba(31, 59, 56, .72) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 140px 0 96px;
            color: #FFFFFF;
        }
        .breadcrumb-nav {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .62);
            margin-bottom: 28px;
        }
        .breadcrumb-nav a {
            color: rgba(255, 255, 255, .85);
            text-decoration: none;
            transition: color .25s ease;
        }
        .breadcrumb-nav a:hover {
            color: #FFFFFF;
        }
        .breadcrumb-sep {
            opacity: .5;
        }
        .article-heading {
            max-width: 860px;
        }
        .hero-cat-badge {
            display: inline-flex;
            align-items: center;
            height: 28px;
            padding: 0 14px;
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .22);
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: .06em;
            color: #FFFFFF;
            margin-bottom: 18px;
        }
        .article-title {
            font-size: clamp(30px, 4vw, 44px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -.02em;
            margin: 0 0 20px;
            color: #FFFFFF;
        }
        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 22px;
            font-size: 14px;
            color: rgba(255, 255, 255, .72);
        }
        .hero-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }
        .hero-meta .meta-item i {
            color: var(--clr-accent);
        }

        /* ===== 正文卡片 ===== */
        .article-container {
            position: relative;
            z-index: 2;
            padding-bottom: 24px;
        }
        .article-card {
            background: var(--clr-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 48px 56px;
            margin-top: -48px;
            position: relative;
        }
        .article-content {
            font-size: 17px;
            line-height: 1.9;
            color: var(--clr-ink);
        }
        .article-content p {
            margin-bottom: 24px;
        }
        .article-content h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--clr-ink);
            margin: 44px 0 16px;
            padding-top: 8px;
            letter-spacing: -.01em;
        }
        .article-content h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--clr-ink);
            margin: 34px 0 14px;
        }
        .article-content h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--clr-ink);
            margin: 28px 0 12px;
        }
        .article-content a {
            color: var(--clr-primary);
            text-decoration: underline;
            text-decoration-color: var(--clr-accent);
            text-underline-offset: 4px;
            transition: color .25s ease;
        }
        .article-content a:hover {
            color: var(--clr-primary-dark);
        }
        .article-content ul,
        .article-content ol {
            padding-left: 1.5rem;
            margin-bottom: 24px;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content blockquote {
            margin: 36px 0;
            padding: 22px 26px;
            background: var(--clr-bg);
            border-left: 3px solid var(--clr-accent);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            font-style: italic;
            color: var(--clr-ink-soft);
            font-size: 16px;
            line-height: 1.8;
        }
        .article-content img {
            border-radius: 12px;
            margin: 16px 0;
            width: 100%;
            object-fit: cover;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 28px 0;
            font-size: 15px;
        }
        .article-content table th,
        .article-content table td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--clr-line);
            text-align: left;
        }
        .article-content table th {
            font-weight: 700;
            color: var(--clr-primary);
            background: #F8F6F2;
        }
        .article-content code {
            background: var(--clr-bg);
            border: 1px solid var(--clr-line);
            border-radius: 4px;
            padding: 2px 8px;
            font-size: .9em;
        }
        .article-content pre {
            background: var(--clr-primary-dark);
            color: #E8E4DC;
            padding: 20px 24px;
            border-radius: 12px;
            overflow-x: auto;
            margin-bottom: 24px;
        }
        .article-content pre code {
            background: transparent;
            border: none;
            padding: 0;
            color: inherit;
        }

        /* ===== 标签 / 返回 ===== */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid var(--clr-line);
        }
        .tag-pill {
            display: inline-flex;
            align-items: center;
            height: 28px;
            padding: 0 14px;
            border-radius: 999px;
            background: #FFFFFF;
            border: 1px solid var(--clr-line);
            color: var(--clr-ink-soft);
            font-size: 12px;
            font-weight: 600;
            text-decoration: none;
            transition: border-color .25s ease, color .25s ease, background .25s ease;
        }
        .tag-pill:hover {
            border-color: var(--clr-primary);
            color: var(--clr-primary);
        }
        .article-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 28px;
            color: var(--clr-primary);
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            transition: gap .25s ease, color .25s ease;
        }
        .article-back:hover {
            gap: 14px;
            color: var(--clr-primary-dark);
        }

        /* ===== 空状态 ===== */
        .article-empty {
            text-align: center;
            padding: 80px 24px 64px;
        }
        .empty-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            border: 2px dashed var(--clr-line);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: 700;
            color: var(--clr-ink-faint);
            margin: 0 auto 24px;
            background: var(--clr-bg);
        }
        .article-empty h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--clr-ink);
            margin-bottom: 12px;
        }
        .back-home-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 8px;
            color: var(--clr-primary);
            font-weight: 600;
            text-decoration: none;
            padding: 10px 24px;
            border: 1px solid var(--clr-line);
            border-radius: var(--radius-sm);
            transition: all .25s ease;
        }
        .back-home-link:hover {
            border-color: var(--clr-primary);
            background: rgba(31, 59, 56, .04);
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 72px 0 96px;
            background: var(--clr-bg);
        }
        .section-head {
            margin-bottom: 36px;
        }
        .section-head h2 {
            font-size: clamp(24px, 3vw, 36px);
            font-weight: 800;
            color: var(--clr-primary);
            letter-spacing: -.01em;
            margin: 0 0 8px;
        }
        .section-head p {
            color: var(--clr-ink-soft);
            font-size: 15px;
            margin: 0;
        }
        .related-card {
            background: var(--clr-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            height: 100%;
            display: flex;
            flex-direction: column;
            text-decoration: none;
            transition: transform .25s ease, box-shadow .25s ease;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .related-thumb {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--clr-line);
        }
        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .related-card:hover .related-thumb img {
            transform: scale(1.03);
        }
        .related-card-body {
            padding: 22px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .related-card-title {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--clr-ink);
            margin: 0 0 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color .25s ease;
        }
        .related-card:hover .related-card-title {
            color: var(--clr-primary);
        }
        .related-date {
            margin-top: auto;
            font-size: 13px;
            color: var(--clr-ink-faint);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .related-date i {
            color: var(--clr-accent);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--clr-primary-dark);
            color: rgba(255, 255, 255, .72);
            padding: 72px 0 0;
            font-size: 15px;
        }
        .site-footer .nav-logo {
            color: #FFFFFF;
            margin-bottom: 16px;
        }
        .site-footer .nav-logo span {
            color: rgba(255, 255, 255, .6);
        }
        .footer-desc {
            color: rgba(255, 255, 255, .62);
            line-height: 1.8;
            max-width: 360px;
            margin: 12px 0 0;
            font-size: 14px;
        }
        .footer-title {
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
            letter-spacing: .02em;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, .64);
            text-decoration: none;
            font-size: 14px;
            transition: color .25s ease, padding-left .25s ease;
        }
        .footer-links a:hover {
            color: #FFFFFF;
            padding-left: 4px;
        }
        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .contact-item {
            display: flex;
            align-items: center;
            gap: 12px;
            color: rgba(255, 255, 255, .64);
            font-size: 14px;
            word-break: break-all;
        }
        .contact-item i {
            color: var(--clr-accent);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            margin-top: 56px;
            padding: 24px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px;
            color: rgba(255, 255, 255, .4);
            font-size: 13px;
        }
        .footer-bottom p {
            margin: 0;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .desktop-nav,
            .btn-nav-cta {
                display: none !important;
            }
            .navbar-toggler {
                display: flex;
            }
            .article-card {
                padding: 40px 32px;
            }
            .related-section {
                padding: 56px 0 72px;
            }
        }
        @media (max-width: 767.98px) {
            .article-hero {
                padding: 116px 0 76px;
            }
            .article-card {
                padding: 32px 24px;
                margin-top: -36px;
            }
            .article-content {
                font-size: 16px;
                line-height: 1.85;
            }
            .article-content h2 {
                font-size: 24px;
            }
            .article-content h3 {
                font-size: 20px;
            }
            .hero-meta {
                gap: 14px 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .related-section .col-md-4 + .col-md-4 {
                margin-top: 0;
            }
        }
        @media (max-width: 575.98px) {
            .article-title {
                font-size: 28px;
            }
            .article-card {
                padding: 28px 20px;
                border-radius: 14px;
            }
            .breadcrumb-nav {
                font-size: 12px;
                margin-bottom: 20px;
            }
            .related-card-body {
                padding: 18px 20px 20px;
            }
            .site-footer {
                padding-top: 56px;
            }
        }

/* roulang page: category1 */
:root {
            --clr-bg: #F6F4EF;
            --clr-surface: #FFFFFF;
            --clr-ink: #1B1C1E;
            --clr-ink-soft: #4A4D52;
            --clr-ink-faint: #8A8D93;
            --clr-primary: #1F3B38;
            --clr-primary-dark: #152A28;
            --clr-accent: #B78A4A;
            --clr-accent-soft: #E9DCC9;
            --clr-line: #E3DED6;
            --radius-lg: 16px;
            --radius-md: 8px;
            --radius-sm: 6px;
            --shadow-card: 0 4px 24px rgba(31, 59, 56, .06);
            --shadow-hover: 0 12px 32px rgba(31, 59, 56, .12);
            --space-section: clamp(64px, 8vw, 120px);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--clr-bg);
            color: var(--clr-ink);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--clr-ink);
            text-decoration: none;
            transition: color .25s ease;
        }
        a:hover {
            color: var(--clr-primary);
        }

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--clr-surface);
            border-bottom: 1px solid var(--clr-line);
            height: 72px;
            width: 100%;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

        .nav-logo {
            display: inline-flex;
            align-items: baseline;
            font-size: 26px;
            font-weight: 800;
            color: var(--clr-primary);
            letter-spacing: .03em;
            line-height: 1;
            white-space: nowrap;
        }
        .nav-logo span {
            font-size: 15px;
            font-weight: 600;
            color: var(--clr-ink-faint);
            margin-left: 6px;
            letter-spacing: .12em;
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .desktop-nav a {
            position: relative;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--clr-ink-soft);
            border-radius: var(--radius-sm);
            transition: color .25s ease, background .25s ease;
        }
        .desktop-nav a:hover {
            color: var(--clr-primary);
            background: rgba(31, 59, 56, .04);
        }
        .desktop-nav a.active {
            color: var(--clr-primary);
            font-weight: 700;
        }
        .desktop-nav a.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            background: var(--clr-primary);
            border-radius: 2px;
        }

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 24px;
            border-radius: 999px;
            background: var(--clr-accent);
            color: #1B1C1E;
            font-size: 14px;
            font-weight: 700;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: background .25s ease, transform .25s ease, box-shadow .25s ease;
        }
        .btn-nav-cta:hover {
            background: #A3783C;
            color: #1B1C1E;
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(183, 138, 74, .3);
        }

        .navbar-toggler {
            display: inline-flex;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            border: 1px solid var(--clr-line);
            border-radius: var(--radius-sm);
            background: var(--clr-surface);
            padding: 10px;
            cursor: pointer;
        }
        .navbar-toggler span {
            display: block;
            width: 100%;
            height: 2px;
            background: var(--clr-primary);
            border-radius: 2px;
            transition: transform .3s ease, opacity .3s ease;
        }
        .navbar-toggler:hover {
            border-color: var(--clr-primary);
        }

        .mobile-nav {
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: var(--clr-surface);
            border-bottom: 1px solid var(--clr-line);
            z-index: 999;
            padding: 0;
            transition: transform .3s ease, opacity .3s ease;
        }
        .mobile-nav.collapse:not(.show) {
            display: none;
        }
        .mobile-nav-inner {
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .mobile-nav-inner a {
            display: block;
            padding: 14px 16px;
            font-size: 20px;
            font-weight: 700;
            color: var(--clr-ink);
            border-radius: var(--radius-md);
            transition: background .25s ease, color .25s ease;
        }
        .mobile-nav-inner a:hover {
            background: rgba(31, 59, 56, .06);
            color: var(--clr-primary);
        }
        .mobile-nav-inner a.active {
            color: var(--clr-primary);
            background: rgba(31, 59, 56, .04);
        }
        .btn-mobile-cta {
            margin-top: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            height: 52px;
            border-radius: var(--radius-sm);
            background: var(--clr-accent);
            color: #1B1C1E;
            font-weight: 700;
            font-size: 16px;
            transition: background .25s ease, transform .25s ease;
        }
        .btn-mobile-cta:hover {
            background: #A3783C;
            color: #1B1C1E;
            transform: translateY(-2px);
        }

        /* ===== Hero / 顶部标题区 ===== */
        .cat-hero {
            position: relative;
            background: linear-gradient(rgba(21, 42, 40, .68), rgba(21, 42, 40, .58)), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: clamp(72px, 10vw, 120px) 0 clamp(64px, 8vw, 100px);
            color: #fff;
        }
        .cat-hero .breadcrumb {
            display: inline-flex;
            flex-wrap: wrap;
            gap: 8px;
            background: rgba(255, 255, 255, .12);
            border-radius: 999px;
            padding: 6px 18px;
            font-size: 13px;
            margin-bottom: 28px;
            backdrop-filter: blur(6px);
        }
        .cat-hero .breadcrumb a {
            color: rgba(255, 255, 255, .78);
        }
        .cat-hero .breadcrumb a:hover {
            color: #fff;
        }
        .cat-hero .breadcrumb i {
            font-size: 10px;
            line-height: 20px;
            color: rgba(255, 255, 255, .45);
        }
        .cat-hero .breadcrumb .current {
            color: #fff;
            font-weight: 600;
        }

        .cat-hero h1 {
            font-size: clamp(30px, 4vw, 44px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.01em;
            margin-bottom: 18px;
            max-width: 720px;
        }
        .cat-hero .hero-lead {
            font-size: clamp(15px, 1.6vw, 18px);
            line-height: 1.8;
            color: rgba(255, 255, 255, .88);
            max-width: 640px;
            margin-bottom: 32px;
        }
        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 32px;
            border-radius: var(--radius-sm);
            background: var(--clr-accent);
            color: #1B1C1E;
            font-size: 15px;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: background .25s ease, transform .25s ease, box-shadow .25s ease;
        }
        .btn-primary:hover {
            background: #A3783C;
            color: #1B1C1E;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(183, 138, 74, .3);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-sm);
            background: transparent;
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, .6);
            cursor: pointer;
            transition: background .25s ease, border-color .25s ease, transform .25s ease;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Sections common ===== */
        .section {
            padding: var(--space-section) 0;
        }
        .section-alt {
            background: var(--clr-surface);
        }
        .section-title-wrap {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }
        .section-title-wrap h2 {
            font-size: clamp(24px, 3vw, 36px);
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .section-title-wrap p {
            color: var(--clr-ink-soft);
            font-size: 15px;
            line-height: 1.75;
        }
        .section-tag {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 999px;
            background: var(--clr-accent-soft);
            color: var(--clr-primary);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: .08em;
            margin-bottom: 16px;
        }

        /* ===== 等级总览卡片 ===== */
        .tier-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .tier-card {
            background: var(--clr-surface);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--clr-line);
            position: relative;
            transition: transform .3s ease, box-shadow .3s ease;
            display: flex;
            flex-direction: column;
        }
        .tier-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .tier-card.featured {
            border: 2px solid var(--clr-accent);
            box-shadow: 0 8px 32px rgba(183, 138, 74, .14);
        }
        .tier-card.featured:hover {
            box-shadow: 0 16px 40px rgba(183, 138, 74, .2);
        }
        .tier-card.premium {
            background: var(--clr-primary-dark);
            color: #fff;
            border-color: var(--clr-primary-dark);
        }
        .tier-card.premium .tier-desc {
            color: rgba(255, 255, 255, .78);
        }
        .tier-card.premium .tier-feature-item {
            color: rgba(255, 255, 255, .85);
        }
        .tier-card.premium .tier-feature-item i {
            color: var(--clr-accent);
        }
        .tier-card.premium .tier-link {
            color: var(--clr-accent-soft);
            border-top-color: rgba(255, 255, 255, .15);
        }
        .tier-card.premium .tier-link:hover {
            color: var(--clr-accent);
        }

        .rec-badge {
            position: absolute;
            top: -12px;
            right: 24px;
            background: var(--clr-accent);
            color: #1B1C1E;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 999px;
            letter-spacing: .04em;
            box-shadow: 0 2px 8px rgba(183, 138, 74, .3);
        }
        .tier-name {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .tier-price-note {
            font-size: 13px;
            color: var(--clr-ink-faint);
            margin-bottom: 16px;
        }
        .tier-card.premium .tier-price-note {
            color: rgba(255, 255, 255, .55);
        }
        .tier-desc {
            font-size: 14px;
            line-height: 1.7;
            color: var(--clr-ink-soft);
            margin-bottom: 20px;
        }
        .tier-feature-list {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex-grow: 1;
        }
        .tier-feature-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            line-height: 1.6;
        }
        .tier-feature-item i {
            color: var(--clr-primary);
            font-size: 13px;
            margin-top: 5px;
        }
        .tier-link {
            display: block;
            padding-top: 18px;
            border-top: 1px solid var(--clr-line);
            font-size: 14px;
            font-weight: 600;
            color: var(--clr-primary);
            transition: color .25s ease;
        }
        .tier-link:hover {
            color: var(--clr-accent);
        }

        /* ===== 权益对比表 ===== */
        .compare-section {
            background: var(--clr-surface);
        }
        .table-shell {
            background: var(--clr-bg);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--clr-line);
            overflow-x: auto;
        }
        .benefit-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 640px;
        }
        .benefit-table thead th {
            padding: 18px 16px;
            font-size: 14px;
            font-weight: 700;
            color: var(--clr-ink-soft);
            text-align: center;
            border-bottom: 2px solid var(--clr-line);
            white-space: nowrap;
        }
        .benefit-table thead th:first-child {
            text-align: left;
        }
        .benefit-table thead th.recommend-col {
            border-top: 3px solid var(--clr-accent);
            border-left: 1px solid var(--clr-line);
            border-right: 1px solid var(--clr-line);
            background: rgba(233, 220, 201, .18);
            position: relative;
        }
        .benefit-table thead th.recommend-col .rec-corner {
            position: absolute;
            top: -3px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--clr-accent);
            color: #1B1C1E;
            font-size: 10px;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: 0 0 8px 8px;
            letter-spacing: .05em;
        }
        .benefit-table tbody td {
            padding: 16px;
            border-bottom: 1px solid var(--clr-line);
            text-align: center;
            font-size: 14px;
            color: var(--clr-ink-soft);
        }
        .benefit-table tbody td:first-child {
            text-align: left;
            font-weight: 600;
            color: var(--clr-ink);
        }
        .benefit-table tbody tr:hover {
            background: var(--clr-bg);
        }
        .benefit-table tbody td.recommend-col {
            border-left: 1px solid var(--clr-line);
            border-right: 1px solid var(--clr-line);
            background: rgba(233, 220, 201, .1);
        }

        .table-icon {
            display: inline-block;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            position: relative;
            vertical-align: middle;
        }
        .table-icon.icon-check {
            background: #E4EDEB;
        }
        .table-icon.icon-check::before {
            content: "";
            position: absolute;
            left: 6px;
            top: 4px;
            width: 5px;
            height: 9px;
            border-right: 2px solid var(--clr-primary);
            border-bottom: 2px solid var(--clr-primary);
            transform: rotate(45deg);
        }
        .table-icon.icon-cross {
            background: #F3E1E1;
        }
        .table-icon.icon-cross::before,
        .table-icon.icon-cross::after {
            content: "";
            position: absolute;
            left: 10px;
            top: 5px;
            width: 2px;
            height: 12px;
            background: #A63D3D;
            border-radius: 1px;
        }
        .table-icon.icon-cross::before {
            transform: rotate(45deg);
        }
        .table-icon.icon-cross::after {
            transform: rotate(-45deg);
        }

        .compare-foot {
            text-align: center;
            margin-top: 20px;
        }
        .compare-foot a {
            font-size: 14px;
            font-weight: 600;
            color: var(--clr-primary);
        }
        .compare-foot a:hover {
            color: var(--clr-accent);
        }

        /* ===== 适用场景 ===== */
        .scene-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 24px;
        }
        .scene-card {
            background: var(--clr-surface);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--clr-line);
            transition: transform .3s ease, box-shadow .3s ease;
            display: flex;
            flex-direction: column;
        }
        .scene-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .scene-card .scene-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--clr-accent-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--clr-primary);
            font-size: 20px;
            margin-bottom: 20px;
        }
        .scene-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .scene-card p {
            font-size: 14px;
            color: var(--clr-ink-soft);
            line-height: 1.7;
            flex-grow: 1;
        }
        .scene-card .scene-tag {
            display: inline-block;
            margin-top: 16px;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            background: var(--clr-accent-soft);
            color: var(--clr-primary);
        }

        /* ===== 开通流程 ===== */
        .process-section {
            background: var(--clr-bg);
        }
        .process-wrap {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }
        .process-step {
            background: var(--clr-surface);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--clr-line);
            position: relative;
            text-align: center;
            transition: transform .3s ease, box-shadow .3s ease;
        }
        .process-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--clr-primary);
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .process-step h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 13px;
            color: var(--clr-ink-soft);
            line-height: 1.6;
            margin: 0;
        }
        .step-arrow {
            position: absolute;
            top: 50%;
            right: -18px;
            transform: translateY(-50%);
            color: var(--clr-accent);
            font-size: 14px;
            z-index: 2;
            background: var(--clr-bg);
            border-radius: 50%;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .process-wrap .process-step:last-child .step-arrow {
            display: none;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            display: grid;
            grid-template-columns: 320px 1fr;
            gap: 48px;
            align-items: start;
        }
        .faq-intro h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            margin-bottom: 12px;
        }
        .faq-intro p {
            font-size: 14px;
            color: var(--clr-ink-soft);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .faq-intro a {
            font-size: 14px;
            font-weight: 600;
            color: var(--clr-primary);
        }
        .faq-intro a:hover {
            color: var(--clr-accent);
        }

        .accordion-custom .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid var(--clr-line);
            border-radius: 0 !important;
        }
        .accordion-custom .accordion-button {
            background: transparent;
            padding: 20px 12px 20px 0;
            font-size: 16px;
            font-weight: 600;
            color: var(--clr-ink);
            box-shadow: none;
            border: none;
            position: relative;
            transition: color .25s ease;
            border-left: 3px solid transparent;
            border-radius: 0 !important;
        }
        .accordion-custom .accordion-button:hover {
            color: var(--clr-primary);
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--clr-primary);
            border-left-color: var(--clr-accent);
            background: transparent;
            box-shadow: none;
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }
        .accordion-custom .accordion-button::after {
            background-image: none;
            content: "\f107";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 16px;
            color: var(--clr-ink-faint);
            transform: rotate(0deg);
            transition: transform .3s ease;
            width: auto;
            height: auto;
        }
        .accordion-custom .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--clr-accent);
        }
        .accordion-custom .accordion-body {
            padding: 4px 12px 20px 12px;
            font-size: 14px;
            color: var(--clr-ink-soft);
            line-height: 1.8;
            border-left: 3px solid var(--clr-accent);
        }

        /* ===== CTA 条 ===== */
        .cta-strip {
            background: var(--clr-primary-dark);
            border-radius: 24px;
            padding: 44px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            border: 1px solid rgba(183, 138, 74, .4);
            position: relative;
            overflow: hidden;
        }
        .cta-strip::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--clr-accent), transparent 60%);
        }
        .cta-strip .cta-text h2 {
            font-size: clamp(22px, 2.5vw, 30px);
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .cta-strip .cta-text p {
            font-size: 14px;
            color: rgba(255, 255, 255, .75);
            margin: 0;
        }
        .cta-strip .btn-cta-large {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 56px;
            padding: 0 40px;
            border-radius: var(--radius-sm);
            background: var(--clr-accent);
            color: #1B1C1E;
            font-size: 16px;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: background .25s ease, transform .25s ease, box-shadow .25s ease;
            white-space: nowrap;
        }
        .cta-strip .btn-cta-large:hover {
            background: #C79B5E;
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(183, 138, 74, .35);
        }

        /* ===== 分页条 ===== */
        .pagination-bar {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            margin-top: 56px;
        }
        .pagination-bar a,
        .pagination-bar span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 14px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--clr-line);
            background: var(--clr-surface);
            font-size: 14px;
            font-weight: 500;
            color: var(--clr-ink-soft);
            transition: border-color .25s ease, background .25s ease, color .25s ease;
        }
        .pagination-bar a:hover {
            border-color: var(--clr-primary);
            color: var(--clr-primary);
            background: rgba(31, 59, 56, .04);
        }
        .pagination-bar span.active {
            background: var(--clr-primary);
            color: #fff;
            border-color: var(--clr-primary);
            font-weight: 700;
        }
        .pagination-bar .page-link-label {
            border: none;
            background: transparent;
        }
        .pagination-bar a.page-link-label:hover {
            background: transparent;
            border-color: transparent;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--clr-primary-dark);
            color: rgba(255, 255, 255, .85);
            padding: 64px 0 24px;
            margin-top: 0;
        }
        .site-footer .nav-logo {
            color: #fff;
        }
        .site-footer .nav-logo span {
            color: rgba(255, 255, 255, .55);
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .65);
            margin-top: 16px;
            max-width: 360px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: .02em;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, .7);
            font-size: 14px;
            transition: color .25s ease, padding-left .25s ease;
        }
        .footer-links a:hover {
            color: var(--clr-accent);
            padding-left: 4px;
        }
        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .contact-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
        }
        .contact-item i {
            width: 20px;
            text-align: center;
            color: var(--clr-accent);
            font-size: 14px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            margin-top: 48px;
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
        }
        .footer-bottom p {
            margin: 0;
        }

        /* ===== 滚动进屏动画 ===== */
        .reveal {
            opacity: 0;
            transform: translateY(12px);
            transition: opacity .6s ease, transform .6s ease;
        }
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .desktop-nav,
            .btn-nav-cta {
                display: none;
            }
            .tier-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .process-wrap {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .step-arrow {
                display: none;
            }
            .faq-wrap {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-strip {
                flex-direction: column;
                padding: 36px 28px;
                text-align: center;
            }
            .cta-strip .btn-cta-large {
                width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 767.98px) {
            .site-header {
                height: 64px;
            }
            .header-inner {
                height: 64px;
            }
            .nav-logo {
                font-size: 22px;
            }
            .nav-logo span {
                font-size: 13px;
            }
            .mobile-nav {
                top: 64px;
            }
            .cat-hero {
                padding: 56px 0 48px;
            }
            .cat-hero h1 {
                font-size: 28px;
            }
            .hero-btns {
                flex-direction: column;
                align-items: stretch;
            }
            .table-shell {
                padding: 20px;
            }
            .process-wrap {
                grid-template-columns: 1fr;
            }
            .pagination-bar {
                flex-wrap: wrap;
            }
            .cta-strip {
                padding: 28px 20px;
                border-radius: 16px;
            }
        }

        @media (max-width: 520px) {
            .section-title-wrap h2 {
                font-size: 22px;
            }
            .tier-card {
                padding: 28px 20px;
            }
            .benefit-table thead th,
            .benefit-table tbody td {
                padding: 12px 8px;
                font-size: 13px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 4px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            .reveal {
                opacity: 1;
                transform: none;
                transition: none;
            }
            * {
                transition: none !important;
            }
        }

/* roulang page: category2 */
:root {
            --clr-bg: #F6F4EF;
            --clr-surface: #FFFFFF;
            --clr-ink: #1B1C1E;
            --clr-ink-soft: #4A4D52;
            --clr-ink-faint: #8A8D93;
            --clr-primary: #1F3B38;
            --clr-primary-dark: #152A28;
            --clr-accent: #B78A4A;
            --clr-accent-soft: #E9DCC9;
            --clr-line: #E3DED6;
            --radius-lg: 16px;
            --radius-md: 8px;
            --radius-sm: 6px;
            --shadow-card: 0 4px 24px rgba(31, 59, 56, .06);
            --shadow-hover: 0 12px 32px rgba(31, 59, 56, .14);
            --space-section: clamp(64px, 8vw, 120px);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.8;
            background: var(--clr-bg);
            color: var(--clr-ink);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--clr-ink);
            text-decoration: none;
            transition: color .25s ease;
        }
        a:hover {
            color: var(--clr-primary);
        }
        img {
            max-width: 100%;
            display: block;
            object-fit: cover;
        }
        .container {
            max-width: 1200px;
        }
        section {
            padding: var(--space-section) 0;
            position: relative;
        }
        .section-head {
            margin-bottom: 40px;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .section-head .h2-title {
            font-size: clamp(24px, 3vw, 36px);
            font-weight: 800;
            line-height: 1.25;
            color: var(--clr-ink);
            letter-spacing: -.01em;
            margin: 0;
        }
        .section-head p {
            color: var(--clr-ink-soft);
            font-size: 15px;
            margin: 10px 0 0;
            max-width: 560px;
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--clr-line);
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 24px;
        }
        .nav-logo {
            font-size: 26px;
            font-weight: 800;
            color: var(--clr-primary);
            letter-spacing: -.01em;
            display: inline-flex;
            align-items: baseline;
            line-height: 1;
        }
        .nav-logo span {
            font-size: 15px;
            font-weight: 600;
            margin-left: 6px;
            color: var(--clr-ink-soft);
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .desktop-nav a {
            font-size: 15px;
            font-weight: 600;
            color: var(--clr-ink-soft);
            position: relative;
            padding: 8px 0;
        }
        .desktop-nav a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--clr-primary);
            transition: width .25s ease;
        }
        .desktop-nav a:hover,
        .desktop-nav a.active {
            color: var(--clr-primary);
        }
        .desktop-nav a.active::after,
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 42px;
            padding: 0 24px;
            background: var(--clr-accent);
            color: #1B1C1E;
            font-size: 14px;
            font-weight: 700;
            border-radius: 6px;
            transition: all .25s ease;
            border: none;
        }
        .btn-nav-cta:hover {
            background: #A3783C;
            color: #1B1C1E;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(183, 138, 74, .25);
        }
        .navbar-toggler {
            width: 42px;
            height: 42px;
            background: transparent;
            border: 1px solid var(--clr-line);
            border-radius: 8px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            padding: 0;
        }
        .navbar-toggler span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--clr-primary);
            border-radius: 2px;
            transition: all .25s ease;
        }
        .navbar-toggler[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .navbar-toggler[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }
        .navbar-toggler[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-nav {
            background: #fff;
            border-top: 1px solid var(--clr-line);
            padding: 20px 0 30px;
        }
        .mobile-nav-inner {
            display: flex;
            flex-direction: column;
            gap: 18px;
            padding: 12px 24px 0;
        }
        .mobile-nav-inner a {
            font-size: 24px;
            font-weight: 700;
            color: var(--clr-ink);
            padding: 8px 0;
            border-bottom: 1px solid #f3f0ea;
        }
        .mobile-nav-inner a.active {
            color: var(--clr-primary);
        }
        .btn-mobile-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 52px;
            background: var(--clr-accent);
            color: #1B1C1E;
            font-weight: 700;
            font-size: 16px;
            border-radius: 6px;
            border: none;
            margin-top: 8px;
        }

        /* Hero */
        .hero {
            background: linear-gradient(135deg, rgba(21, 42, 40, .62), rgba(31, 59, 56, .48)),
                url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            color: #fff;
            padding: 120px 0 96px;
            position: relative;
            overflow: hidden;
        }
        .hero-inner {
            max-width: 780px;
        }
        .hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .22);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .04em;
            color: #f2f0eb;
            margin-bottom: 24px;
        }
        .hero h1 {
            font-size: clamp(36px, 5.6vw, 64px);
            font-weight: 800;
            line-height: 1.16;
            letter-spacing: -.02em;
            margin: 0 0 20px;
            color: #fff;
        }
        .hero p {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(255, 255, 255, .86);
            max-width: 640px;
            margin-bottom: 36px;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .btn-primary-main {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 52px;
            padding: 0 34px;
            background: var(--clr-accent);
            color: #1B1C1E;
            font-size: 15px;
            font-weight: 700;
            border-radius: 6px;
            border: none;
            transition: all .25s ease;
            box-shadow: 0 4px 16px rgba(0, 0, 0, .1);
        }
        .btn-primary-main:hover {
            background: #A3783C;
            color: #1B1C1E;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(0, 0, 0, .16);
        }
        .btn-link-light {
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border-bottom: 1px solid rgba(255, 255, 255, .55);
            padding-bottom: 2px;
            transition: border-color .25s ease;
        }
        .btn-link-light:hover {
            color: #fff;
            border-color: #fff;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            margin-top: 70px;
            border-top: 1px solid rgba(255, 255, 255, .16);
            padding-top: 36px;
        }
        .hero-stats .stat-number {
            font-size: clamp(30px, 4vw, 42px);
            font-weight: 800;
            line-height: 1.2;
            color: var(--clr-accent);
            font-family: Georgia, serif;
        }
        .hero-stats .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
            margin-top: 4px;
        }

        /* Category Feature Grid */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--clr-surface);
            border-radius: var(--radius-lg);
            padding: 32px 24px 28px;
            box-shadow: var(--shadow-card);
            transition: all .25s ease;
            border: 1px solid rgba(255, 255, 255, .6);
            height: 100%;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .feature-icon {
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--clr-accent-soft);
            border-radius: 12px;
            color: var(--clr-primary);
            font-size: 20px;
            margin-bottom: 18px;
        }
        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--clr-ink);
        }
        .feature-card p {
            font-size: 14px;
            color: var(--clr-ink-soft);
            line-height: 1.75;
            margin: 0;
        }

        /* Content Cards */
        .content-card {
            background: var(--clr-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all .25s ease;
            border: none;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .content-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }
        .content-card .card-img-wrap {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }
        .content-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .content-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .content-card .card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            flex: 1;
        }
        .content-card .tag {
            display: inline-flex;
            align-items: center;
            align-self: flex-start;
            height: 24px;
            padding: 0 12px;
            background: #E4EDEB;
            color: var(--clr-primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            letter-spacing: .04em;
        }
        .content-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            margin: 0;
            color: var(--clr-ink);
        }
        .content-card p {
            font-size: 14px;
            color: var(--clr-ink-soft);
            margin: 0;
            flex: 1;
        }
        .content-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--clr-ink-faint);
            border-top: 1px solid var(--clr-line);
            padding-top: 14px;
            margin-top: 4px;
        }
        .content-card .card-link {
            color: var(--clr-primary);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* Scenario Section */
        .scenario-block {
            background: var(--clr-surface);
            border-radius: var(--radius-lg);
            padding: 44px;
            box-shadow: var(--shadow-card);
            display: flex;
            gap: 40px;
            align-items: center;
            flex-wrap: wrap;
            margin-bottom: 28px;
            transition: all .25s ease;
        }
        .scenario-block:hover {
            box-shadow: var(--shadow-hover);
        }
        .scenario-block .scene-img {
            flex: 0 0 46%;
            max-width: 420px;
        }
        .scenario-block .scene-img img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-radius: var(--radius-md);
        }
        .scenario-block .scene-content {
            flex: 1;
            min-width: 280px;
        }
        .scenario-block .scene-content h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--clr-ink);
        }
        .scenario-block .scene-content p {
            color: var(--clr-ink-soft);
            font-size: 15px;
            margin-bottom: 12px;
        }
        .scene-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
            display: grid;
            gap: 8px;
        }
        .scene-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--clr-ink-soft);
        }
        .scene-list li i {
            color: var(--clr-accent);
            font-size: 14px;
            line-height: 1.9;
        }

        /* Steps Timeline */
        .steps-section {
            background: var(--clr-primary-dark);
            color: #fff;
        }
        .steps-section .section-head .h2-title {
            color: #fff;
        }
        .steps-section .section-head p {
            color: rgba(255, 255, 255, .65);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-top: 20px;
        }
        .step-item {
            position: relative;
            padding: 32px 24px;
            background: rgba(255, 255, 255, .05);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, .09);
            height: 100%;
            transition: all .25s ease;
        }
        .step-item:hover {
            background: rgba(255, 255, 255, .08);
            transform: translateY(-4px);
        }
        .step-num {
            font-size: 15px;
            font-weight: 700;
            color: var(--clr-accent);
            letter-spacing: .06em;
            margin-bottom: 16px;
            display: block;
        }
        .step-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .step-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
            margin: 0;
            line-height: 1.75;
        }

        /* FAQ */
        .faq-wrap {
            display: grid;
            grid-template-columns: 380px 1fr;
            gap: 56px;
            align-items: start;
        }
        .faq-side .h2-title {
            margin-bottom: 16px;
        }
        .faq-side p {
            color: var(--clr-ink-soft);
            font-size: 15px;
            margin-bottom: 20px;
        }
        .faq-side .btn-link-custom {
            color: var(--clr-primary);
            border-bottom: 1px solid var(--clr-primary);
            padding-bottom: 2px;
            font-weight: 600;
        }
        .accordion-custom {
            display: flex;
            flex-direction: column;
        }
        .accordion-custom .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid var(--clr-line);
            border-radius: 0 !important;
        }
        .accordion-custom .accordion-item:first-child {
            border-top: 1px solid var(--clr-line);
        }
        .accordion-custom .accordion-button {
            background: transparent;
            box-shadow: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--clr-ink);
            padding: 22px 16px 22px 20px;
            border-left: 3px solid transparent;
            border-radius: 0;
            transition: all .25s ease;
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--clr-primary);
            border-left-color: var(--clr-accent);
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: none;
        }
        .accordion-custom .accordion-button::after {
            background-image: none;
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\f067";
            font-size: 14px;
            color: var(--clr-ink-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            transition: transform .25s ease;
        }
        .accordion-custom .accordion-button:not(.collapsed)::after {
            content: "\f068";
            color: var(--clr-primary);
            transform: rotate(180deg);
        }
        .accordion-custom .accordion-body {
            padding: 0 18px 22px 23px;
            color: var(--clr-ink-soft);
            font-size: 15px;
            line-height: 1.85;
        }

        /* CTA */
        .cta-card {
            background: var(--clr-primary);
            border-radius: var(--radius-lg);
            padding: clamp(40px, 6vw, 72px) clamp(28px, 5vw, 72px);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            outline: 1px solid rgba(183, 138, 74, .65);
            outline-offset: -14px;
            position: relative;
            overflow: hidden;
        }
        .cta-card h2 {
            color: #fff;
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            margin: 0 0 10px;
        }
        .cta-card p {
            color: rgba(255, 255, 255, .68);
            font-size: 15px;
            max-width: 420px;
            margin: 0;
        }
        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 56px;
            padding: 0 44px;
            background: var(--clr-accent);
            color: #1B1C1E;
            font-size: 16px;
            font-weight: 700;
            border-radius: 6px;
            border: none;
            transition: all .25s ease;
            white-space: nowrap;
        }
        .btn-cta-large:hover {
            background: #C69A5A;
            color: #1B1C1E;
            transform: translateY(-2px);
            box-shadow: 0 0 0 8px rgba(183, 138, 74, .06), 0 10px 24px rgba(0, 0, 0, .15);
        }

        /* Footer */
        .site-footer {
            background: #0F1D1C;
            color: rgba(255, 255, 255, .7);
            padding: 72px 0 32px;
            margin-top: 20px;
        }
        .site-footer .nav-logo {
            color: #fff;
        }
        .site-footer .nav-logo span {
            color: rgba(255, 255, 255, .55);
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .55);
            margin: 20px 0 0;
            max-width: 360px;
        }
        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: .05em;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            transition: color .25s ease, padding-left .25s ease;
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 6px;
        }
        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .contact-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
        }
        .contact-item i {
            color: var(--clr-accent);
            width: 20px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding-top: 24px;
            margin-top: 56px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, .42);
            margin: 0;
        }

        /* Scroll animation */
        .reveal {
            opacity: 0;
            transform: translateY(16px);
            transition: opacity .5s ease, transform .5s ease;
        }
        .reveal.show {
            opacity: 1;
            transform: none;
        }

        /* Responsive */
        @media (max-width: 1199px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 991px) {
            .desktop-nav {
                display: none;
            }
            .btn-nav-cta {
                display: none;
            }
            .hero {
                padding: 80px 0 64px;
            }
            .hero-stats {
                gap: 28px;
                margin-top: 48px;
            }
            .faq-wrap {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .scenario-block {
                padding: 28px;
                flex-direction: column;
            }
            .scenario-block .scene-img {
                flex: 0 0 100%;
                max-width: 100%;
            }
        }

        @media (max-width: 767px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 34px;
            }
            .hero-stats {
                gap: 24px;
            }
            .section-head {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-card {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
            .cta-card p {
                text-align: center;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero {
                padding: 64px 0 48px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-primary-main,
            .btn-link-light {
                width: 100%;
                text-align: center;
            }
            .hero-stats .stat-item {
                flex: 1 1 calc(33% - 12px);
                min-width: 100px;
            }
            .scenario-block {
                padding: 20px;
            }
            .step-item {
                padding: 24px 18px;
            }
        }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --clr-bg: #F6F4EF;
            --clr-surface: #FFFFFF;
            --clr-ink: #1B1C1E;
            --clr-ink-soft: #4A4D52;
            --clr-ink-faint: #8A8D93;
            --clr-primary: #1F3B38;
            --clr-primary-dark: #152A28;
            --clr-accent: #B78A4A;
            --clr-accent-soft: #E9DCC9;
            --clr-line: #E3DED6;
            --radius-lg: 16px;
            --radius-md: 8px;
            --radius-sm: 6px;
            --shadow-card: 0 4px 24px rgba(31, 59, 56, .06);
            --shadow-hover: 0 12px 32px rgba(31, 59, 56, .12);
            --space-section: clamp(64px, 8vw, 120px);
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--clr-bg);
            color: var(--clr-ink);
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            text-decoration: none;
            color: var(--clr-ink);
            transition: color .25s ease;
        }
        a:hover {
            color: var(--clr-primary);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
        }
        p {
            margin: 0 0 16px;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 头部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 72px;
            background: var(--clr-surface);
            border-bottom: 1px solid var(--clr-line);
        }
        .header-inner {
            height: 72px;
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-logo {
            font-size: 26px;
            font-weight: 800;
            color: var(--clr-primary);
            letter-spacing: .03em;
            display: flex;
            align-items: baseline;
            line-height: 1;
        }
        .nav-logo span {
            font-size: 14px;
            font-weight: 600;
            color: var(--clr-ink-soft);
            margin-left: 4px;
            letter-spacing: .08em;
        }
        .nav-logo:hover {
            color: var(--clr-primary);
        }
        .desktop-nav {
            display: flex;
            gap: 30px;
            margin-left: auto;
        }
        .desktop-nav a {
            font-size: 15px;
            padding: 8px 0;
            color: var(--clr-ink-soft);
            position: relative;
            font-weight: 500;
        }
        .desktop-nav a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--clr-primary);
            transition: width .25s ease;
        }
        .desktop-nav a:hover {
            color: var(--clr-primary);
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .desktop-nav a.active {
            color: var(--clr-primary);
            font-weight: 700;
        }
        .desktop-nav a.active::after {
            width: 100%;
            background: var(--clr-primary);
        }
        .btn-nav-cta {
            background: var(--clr-accent);
            color: var(--clr-ink);
            font-weight: 700;
            height: 40px;
            padding: 0 24px;
            border-radius: 999px;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: none;
            transition: all .25s ease;
        }
        .btn-nav-cta:hover {
            background: #A3783C;
            color: var(--clr-ink);
            transform: translateY(-2px);
        }

        /* 移动端汉堡 */
        .navbar-toggler {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            width: 40px;
            height: 40px;
            padding: 8px;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            margin-left: auto;
        }
        .navbar-toggler span {
            width: 22px;
            height: 2px;
            background: var(--clr-primary);
            border-radius: 3px;
            transition: all .25s ease;
        }
        .mobile-nav {
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 999;
            background: var(--clr-surface);
            padding: 40px 24px;
            overflow-y: auto;
            border-top: 1px solid var(--clr-line);
            display: none;
        }
        .mobile-nav.show {
            display: block;
            animation: navFadeIn .25s ease;
        }
        @keyframes navFadeIn {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .mobile-nav-inner {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .mobile-nav-inner a {
            font-size: 22px;
            font-weight: 700;
            color: var(--clr-ink);
            padding: 14px 8px;
            border-bottom: 1px solid var(--clr-line);
        }
        .mobile-nav-inner a:hover {
            color: var(--clr-primary);
            padding-left: 14px;
        }
        .mobile-nav-inner a.active {
            color: var(--clr-primary);
        }
        .mobile-nav-inner .btn-mobile-cta {
            background: var(--clr-accent);
            color: var(--clr-ink);
            border-radius: var(--radius-sm);
            text-align: center;
            font-size: 18px;
            font-weight: 700;
            padding: 14px 24px;
            border: none;
            margin-top: 20px;
            transition: all .25s ease;
        }
        .mobile-nav-inner .btn-mobile-cta:hover {
            background: #A3783C;
            color: var(--clr-ink);
        }

        /* ===== Hero ===== */
        .help-hero {
            position: relative;
            background: linear-gradient(rgba(21, 42, 40, .60), rgba(21, 42, 40, .48)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            color: #fff;
            padding: clamp(80px, 10vw, 150px) 0;
            margin-bottom: 0;
        }
        .help-hero .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .25);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 13px;
            letter-spacing: .06em;
            margin-bottom: 24px;
            color: #eee;
        }
        .help-hero h1 {
            font-size: clamp(32px, 5vw, 52px);
            font-weight: 800;
            line-height: 1.18;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            max-width: 640px;
        }
        .help-hero .hero-lead {
            font-size: clamp(15px, 1.6vw, 18px);
            line-height: 1.8;
            opacity: .92;
            max-width: 620px;
            margin-bottom: 36px;
        }
        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
        }
        .hero-cta-group .btn-cta-main {
            background: var(--clr-accent);
            color: var(--clr-ink);
            font-weight: 700;
            height: 50px;
            padding: 0 36px;
            border-radius: var(--radius-sm);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all .25s ease;
        }
        .hero-cta-group .btn-cta-main:hover {
            background: #A3783C;
            color: var(--clr-ink);
            transform: translateY(-2px);
        }
        .hero-cta-group .btn-cta-text {
            color: #fff;
            border-bottom: 1px solid rgba(255, 255, 255, .5);
            padding-bottom: 2px;
            font-weight: 500;
            transition: border-color .25s ease;
        }
        .hero-cta-group .btn-cta-text:hover {
            color: var(--clr-accent-soft);
            border-color: var(--clr-accent);
        }
        .hero-stats {
            display: flex;
            gap: 48px;
            flex-wrap: wrap;
            margin-top: 52px;
        }
        .hero-stats .stat-item .stat-num {
            font-size: 34px;
            font-weight: 800;
            color: var(--clr-accent);
            line-height: 1.2;
            letter-spacing: -0.01em;
        }
        .hero-stats .stat-item .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, .82);
            margin-top: 4px;
        }

        /* ===== 通用区块 ===== */
        .section {
            padding: var(--space-section) 0;
        }
        .section-title-wrap {
            margin-bottom: 48px;
        }
        .section-title-wrap h2 {
            font-size: clamp(26px, 3.2vw, 36px);
            font-weight: 800;
            letter-spacing: -0.015em;
            margin-bottom: 12px;
            color: var(--clr-ink);
        }
        .section-title-wrap p {
            font-size: 15px;
            color: var(--clr-ink-soft);
            max-width: 560px;
            margin: 0;
        }
        .section-title-wrap .section-tag {
            display: inline-block;
            background: var(--clr-accent-soft);
            color: #5C4320;
            border-radius: 999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: .08em;
            margin-bottom: 12px;
        }

        /* ===== 帮助卡片墙 ===== */
        .help-card {
            background: var(--clr-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all .25s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .help-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .help-card .card-cover {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
        }
        .help-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s ease;
        }
        .help-card:hover .card-cover img {
            transform: scale(1.04);
        }
        .help-card .card-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(21, 42, 40, .10), transparent 45%);
            pointer-events: none;
        }
        .help-card .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .help-card .card-tag {
            align-self: flex-start;
            background: var(--clr-surface);
            border: 1px solid var(--clr-line);
            color: var(--clr-ink-soft);
            border-radius: 999px;
            padding: 3px 12px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: .04em;
            margin-bottom: 14px;
        }
        .help-card .card-title {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 10px;
            color: var(--clr-ink);
            transition: color .25s ease;
        }
        .help-card:hover .card-title {
            color: var(--clr-primary);
        }
        .help-card .card-desc {
            font-size: 14px;
            color: var(--clr-ink-soft);
            line-height: 1.7;
            margin-bottom: 18px;
            flex: 1;
        }
        .help-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--clr-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: auto;
            position: relative;
        }
        .help-card .card-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 1px;
            background: var(--clr-primary);
            transition: width .25s ease;
        }
        .help-card .card-link:hover::after {
            width: 100%;
        }

        /* 分页 / 浏览导航 */
        .page-nav-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            padding-top: 40px;
            flex-wrap: wrap;
        }
        .page-nav-wrap .page-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--clr-primary);
            background: var(--clr-surface);
            border: 1px solid var(--clr-line);
            border-radius: 999px;
            padding: 8px 20px;
            transition: all .25s ease;
        }
        .page-nav-wrap .page-link:hover {
            border-color: var(--clr-primary);
            box-shadow: var(--shadow-card);
        }
        .page-nav-wrap .page-link.disabled {
            color: var(--clr-ink-faint);
            pointer-events: none;
            opacity: .5;
        }
        .page-nav-wrap .page-current {
            font-size: 14px;
            color: var(--clr-ink-soft);
            background: transparent;
            border: none;
            padding: 8px 0;
        }

        /* ===== 使用流程 ===== */
        .help-steps {
            background: var(--clr-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: clamp(28px, 4vw, 48px);
        }
        .step-item {
            position: relative;
            padding-left: 64px;
            padding-bottom: 34px;
        }
        .step-item:last-child {
            padding-bottom: 0;
        }
        .step-item::before {
            content: "";
            position: absolute;
            left: 22px;
            top: 50px;
            bottom: 4px;
            width: 2px;
            background: var(--clr-line);
            border-radius: 2px;
        }
        .step-item:last-child::before {
            display: none;
        }
        .step-number {
            position: absolute;
            left: 0;
            top: 0;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--clr-primary);
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(31, 59, 56, .18);
            z-index: 2;
        }
        .step-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--clr-ink);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 15px;
            color: var(--clr-ink-soft);
            margin: 0;
            line-height: 1.7;
            max-width: 640px;
        }

        /* ===== 服务保障 ===== */
        .support-wrap {
            background: var(--clr-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: clamp(32px, 4vw, 52px);
            height: 100%;
        }
        .support-wrap .support-title {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--clr-ink);
        }
        .support-item {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--clr-line);
        }
        .support-item:first-of-type {
            padding-top: 0;
        }
        .support-item:last-of-type {
            border-bottom: none;
            padding-bottom: 0;
        }
        .support-item .support-icon {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            border-radius: var(--radius-md);
            background: var(--clr-accent-soft);
            color: #5C4320;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }
        .support-item h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .support-item p {
            font-size: 14px;
            color: var(--clr-ink-soft);
            margin: 0;
            line-height: 1.6;
        }
        .support-dark-card {
            background: var(--clr-primary-dark);
            border-radius: var(--radius-lg);
            color: #fff;
            padding: clamp(32px, 4vw, 44px);
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: center;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }
        .support-dark-card::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(183, 138, 74, .12);
        }
        .support-dark-card h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .support-dark-card p {
            font-size: 15px;
            color: rgba(255, 255, 255, .78);
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .support-dark-card .support-contact {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .support-dark-card .support-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            color: #eee;
        }
        .support-dark-card .support-contact i {
            color: var(--clr-accent);
            width: 18px;
            text-align: center;
        }

        /* ===== FAQ ===== */
        .faq-layout {
            display: grid;
            grid-template-columns: 1fr 1.6fr;
            gap: 48px;
            align-items: start;
        }
        .faq-left {
            position: sticky;
            top: 100px;
        }
        .faq-left h2 {
            font-size: clamp(26px, 3.2vw, 36px);
            font-weight: 800;
            margin-bottom: 16px;
        }
        .faq-left p {
            color: var(--clr-ink-soft);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .faq-left .faq-contact {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--clr-primary);
        }
        .faq-left .faq-contact:hover {
            color: var(--clr-accent);
        }

        .help-faq .accordion-item {
            border: none;
            border-bottom: 1px solid var(--clr-line);
            background: transparent;
            border-radius: 0 !important;
            margin-bottom: 0;
        }
        .help-faq .accordion-button {
            background: transparent;
            box-shadow: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--clr-ink);
            padding: 20px 48px 20px 16px;
            position: relative;
            border-radius: 0 !important;
            transition: color .25s ease;
        }
        .help-faq .accordion-button::after {
            background: none;
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\f067";
            position: absolute;
            right: 16px;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--clr-ink-faint);
            transition: transform .25s ease;
        }
        .help-faq .accordion-button:not(.collapsed) {
            color: var(--clr-primary);
            font-weight: 700;
            background: transparent;
            box-shadow: none;
        }
        .help-faq .accordion-button:not(.collapsed)::after {
            content: "\f068";
            color: var(--clr-primary);
        }
        .help-faq .accordion-item {
            border-left: 3px solid transparent;
            transition: border-color .25s ease;
        }
        .help-faq .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-left-color: var(--clr-accent);
        }
        .help-faq .accordion-body {
            padding: 0 16px 24px 16px;
            font-size: 15px;
            color: var(--clr-ink-soft);
            line-height: 1.8;
        }

        /* ===== CTA 区 ===== */
        .help-cta {
            background: var(--clr-primary-dark);
            border-radius: var(--radius-lg);
            padding: clamp(40px, 5vw, 64px);
            color: #fff;
            position: relative;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(183, 138, 74, .35);
        }
        .help-cta::before {
            content: "";
            position: absolute;
            inset: 12px;
            border: 1px dashed rgba(183, 138, 74, .35);
            border-radius: calc(var(--radius-lg) - 8px);
            pointer-events: none;
        }
        .help-cta .cta-inner {
            position: relative;
            z-index: 1;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
        }
        .help-cta h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            margin-bottom: 8px;
        }
        .help-cta p {
            color: rgba(255, 255, 255, .82);
            font-size: 15px;
            margin: 0;
        }
        .help-cta .btn-cta-big {
            background: var(--clr-accent);
            color: var(--clr-ink);
            font-weight: 700;
            height: 56px;
            padding: 0 40px;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 16px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: all .25s ease;
            white-space: nowrap;
        }
        .help-cta .btn-cta-big:hover {
            background: #cba05d;
            color: var(--clr-ink);
            box-shadow: 0 0 0 1px var(--clr-accent);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--clr-primary-dark);
            color: rgba(255, 255, 255, .74);
            padding: 64px 0 0;
        }
        .site-footer .nav-logo {
            color: #fff;
        }
        .site-footer .nav-logo span {
            color: rgba(255, 255, 255, .6);
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .64);
            margin-top: 16px;
            max-width: 360px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            letter-spacing: .04em;
            margin-bottom: 18px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, .62);
            font-size: 14px;
            transition: color .25s ease, padding-left .25s ease;
        }
        .footer-links a:hover {
            color: var(--clr-accent);
            padding-left: 6px;
        }
        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .62);
        }
        .contact-item i {
            color: var(--clr-accent);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            margin-top: 48px;
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
        }
        .footer-bottom p {
            margin: 0;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .desktop-nav,
            .btn-nav-cta {
                display: none;
            }
            .navbar-toggler {
                display: flex;
            }
            .faq-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .faq-left {
                position: static;
            }
        }

        @media (max-width: 767.98px) {
            .section {
                --space-section: 56px;
            }
            .hero-stats {
                gap: 28px;
                margin-top: 40px;
            }
            .hero-stats .stat-item .stat-num {
                font-size: 26px;
            }
            .step-item {
                padding-left: 52px;
            }
            .step-item::before {
                left: 18px;
            }
            .step-number {
                width: 36px;
                height: 36px;
                font-size: 15px;
            }
            .help-cta .cta-inner {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                gap: 12px;
            }
            .nav-logo {
                font-size: 22px;
            }
            .nav-logo span {
                font-size: 13px;
            }
            .help-hero {
                padding: 60px 0 80px;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
            }
            .page-nav-wrap {
                gap: 12px;
            }
            .page-nav-wrap .page-link {
                padding: 6px 16px;
                font-size: 13px;
            }
        }

        /* ===== 通用工具 ===== */
        .text-center {
            text-align: center;
        }
        .mb-1 {
            margin-bottom: 8px;
        }
        .mt-1 {
            margin-top: 8px;
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }