/* roulang page: index */
:root{
    --c-primary:#0B1F1A;
    --c-primary-light:#12332A;
    --c-accent:#F5B83D;
    --c-accent-hover:#FFC75F;
    --c-aqua:#2FA89B;
    --c-bg:#F7F5F0;
    --c-surface:#FFFFFF;
    --c-text:#1E2B26;
    --c-muted:#5E6F68;
    --c-border:#E6E0D6;
    --radius-lg:16px;
    --radius-md:12px;
    --radius-sm:10px;
    --shadow-card:0 2px 12px rgba(11,31,26,0.06);
    --shadow-hover:0 8px 28px rgba(11,31,26,0.12);
    --shadow-nav:0 4px 20px rgba(11,31,26,0.18);
    --transition:0.2s ease;
    --font-main:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
    font-family:var(--font-main);
    background:var(--c-bg);
    color:var(--c-text);
    line-height:1.6;
    font-size:16px;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-aqua);text-decoration:none;transition:color var(--transition);}
a:hover{color:#1D7F75;}
ul,ol{list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;outline:none;}
button{cursor:pointer;}
.container{
    max-width:1200px;
    margin:0 auto;
    padding-left:24px;
    padding-right:24px;
}
.section{padding:72px 0;}
.section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    margin-bottom:40px;
    gap:20px;
}
.section-title{
    font-size:26px;
    font-weight:700;
    color:var(--c-text);
    line-height:1.3;
    position:relative;
    padding-left:18px;
}
.section-title::before{
    content:"";
    position:absolute;
    left:0;top:6px;
    width:5px;
    height:24px;
    background:var(--c-accent);
    border-radius:3px;
}
.section-sub{
    font-size:14px;
    color:var(--c-muted);
    margin-top:6px;
}
.section-more a{
    font-size:14px;
    font-weight:600;
    color:var(--c-aqua);
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:8px 16px;
    border:1px solid var(--c-border);
    border-radius:24px;
    transition:all var(--transition);
}
.section-more a:hover{
    border-color:var(--c-aqua);
    background:rgba(47,168,155,0.06);
    transform:translateX(2px);
}
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 24px;
    border-radius:var(--radius-sm);
    font-weight:700;
    font-size:15px;
    border:none;
    transition:all var(--transition);
    line-height:1.4;
}
.btn-accent{
    background:var(--c-accent);
    color:var(--c-primary);
}
.btn-accent:hover{
    background:var(--c-accent-hover);
    color:var(--c-primary);
    transform:translateY(-2px);
    box-shadow:0 6px 20px rgba(245,184,61,0.35);
}
.btn-outline{
    background:transparent;
    border:1px solid var(--c-primary);
    color:var(--c-primary);
}
.btn-outline:hover{
    background:rgba(11,31,26,0.06);
    transform:translateY(-2px);
}
.btn-on-dark{
    background:transparent;
    border:1px solid rgba(255,255,255,0.9);
    color:rgba(255,255,255,0.9);
}
.btn-on-dark:hover{
    background:rgba(255,255,255,0.1);
    color:#fff;
    transform:translateY(-2px);
}
.btn-sm{
    padding:8px 18px;
    font-size:13px;
    border-radius:8px;
}
.btn-lg{
    padding:16px 36px;
    font-size:16px;
}
.tag{
    display:inline-block;
    padding:4px 12px;
    border-radius:6px;
    font-size:12px;
    font-weight:600;
    background:rgba(47,168,155,0.12);
    color:var(--c-aqua);
}
.tag-accent{
    background:rgba(245,184,61,0.15);
    color:#B8860B;
}
.tag-dark{
    background:rgba(255,255,255,0.12);
    color:#fff;
}
.badge-live{
    display:inline-flex;
    align-items:center;
    gap:6px;
    background:rgba(220,53,69,0.9);
    color:#fff;
    font-size:12px;
    font-weight:700;
    padding:5px 14px;
    border-radius:20px;
    letter-spacing:1px;
    text-transform:uppercase;
}
.badge-live::before{
    content:"";
    width:7px;height:7px;
    background:#fff;
    border-radius:50%;
    animation:pulse 1.2s infinite;
}
@keyframes pulse{
    0%,100%{opacity:1;transform:scale(1);}
    50%{opacity:0.4;transform:scale(0.7);}
}
/* ===== Header Nav ===== */
.site-header{
    position:sticky;
    top:0;
    z-index:1000;
    background:var(--c-primary);
    box-shadow:var(--shadow-nav);
}
.site-header.scrolled{
    background:rgba(11,31,26,0.92);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
}
.nav-top{
    border-bottom:1px solid rgba(255,255,255,0.08);
    padding:12px 0;
}
.nav-top-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
}
.brand{
    display:flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
}
.brand-icon{
    width:34px;height:34px;
    background:var(--c-accent);
    border-radius:8px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:16px;
    color:var(--c-primary);
    font-weight:800;
}
.brand-text{
    font-size:18px;
    font-weight:800;
    color:#fff;
    letter-spacing:0.5px;
    white-space:nowrap;
}
.brand-text em{
    font-style:normal;
    color:var(--c-accent);
}
.nav-top-actions{
    display:flex;
    align-items:center;
    gap:14px;
    flex-shrink:0;
}
.search-box{
    position:relative;
}
.search-box input{
    background:rgba(255,255,255,0.1);
    border:1px solid rgba(255,255,255,0.15);
    border-radius:24px;
    padding:8px 38px 8px 16px;
    color:#fff;
    font-size:13px;
    width:180px;
    transition:all var(--transition);
}
.search-box input::placeholder{color:rgba(255,255,255,0.5);}
.search-box input:focus{
    border-color:var(--c-aqua);
    background:rgba(255,255,255,0.16);
    box-shadow:0 0 0 4px rgba(47,168,155,0.2);
    width:220px;
}
.search-box button{
    position:absolute;
    right:12px;top:50%;
    transform:translateY(-50%);
    background:none;
    border:none;
    color:rgba(255,255,255,0.6);
    font-size:13px;
}
.search-box button:hover{color:var(--c-accent);}
.nav-toggle{
    display:none;
    background:none;
    border:none;
    color:#fff;
    font-size:20px;
    padding:6px;
}
.nav-channels{
    padding:0;
}
.nav-channels-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    min-height:48px;
}
.channel-nav{
    display:flex;
    align-items:center;
    gap:4px;
    flex-wrap:nowrap;
    overflow-x:auto;
    scrollbar-width:none;
}
.channel-nav::-webkit-scrollbar{display:none;}
.nav-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:10px 18px;
    color:rgba(255,255,255,0.85);
    font-size:15px;
    font-weight:600;
    white-space:nowrap;
    position:relative;
    transition:color var(--transition);
    border-radius:8px;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,0.06);}
.nav-link.active{
    color:var(--c-accent);
    background:rgba(245,184,61,0.1);
}
.nav-link.active::after{
    content:"";
    position:absolute;
    left:18px;right:18px;bottom:6px;
    height:2px;
    background:var(--c-accent);
    border-radius:2px;
}
.trend-tags{
    display:flex;
    align-items:center;
    gap:8px;
    flex-shrink:0;
    font-size:13px;
}
.trend-label{
    color:rgba(255,255,255,0.6);
    display:inline-flex;
    align-items:center;
    gap:4px;
    white-space:nowrap;
}
.trend-link{
    color:rgba(255,255,255,0.7);
    padding:4px 10px;
    border:1px solid rgba(255,255,255,0.15);
    border-radius:20px;
    font-size:12px;
    white-space:nowrap;
    transition:all var(--transition);
}
.trend-link:hover{
    color:var(--c-accent);
    border-color:var(--c-accent);
    background:rgba(245,184,61,0.1);
}
/* ===== Hero ===== */
.hero{
    background:
        radial-gradient(ellipse at 20% 20%,rgba(245,184,61,0.12),transparent 40%),
        linear-gradient(135deg,#0B1F1A 0%,#0A2A22 60%,#12332A 100%);
    padding:56px 0 72px;
    color:#fff;
    overflow:hidden;
    position:relative;
}
.hero::before{
    content:"";
    position:absolute;
    top:0;left:0;right:0;bottom:0;
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover;
    background-position:center;
    opacity:0.15;
    pointer-events:none;
}
.hero-inner{
    position:relative;
    display:grid;
    grid-template-columns:1.25fr 0.75fr;
    gap:48px;
    align-items:center;
}
.hero-left{
    display:flex;
    flex-direction:column;
    gap:24px;
}
.hero-title{
    font-size:34px;
    font-weight:800;
    line-height:1.3;
    letter-spacing:0.5px;
}
.hero-title .highlight{
    color:var(--c-accent);
}
.hero-sub{
    font-size:15px;
    color:rgba(255,255,255,0.75);
    line-height:1.7;
    max-width:520px;
}
.live-preview-wrap{
    position:relative;
    border-radius:var(--radius-lg);
    overflow:hidden;
    border:2px solid rgba(47,168,155,0.3);
    box-shadow:0 10px 40px rgba(0,0,0,0.4);
}
.live-preview-wrap::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(180deg,rgba(0,0,0,0.1) 0%,rgba(0,0,0,0.55) 100%);
    pointer-events:none;
}
.live-preview-wrap img{
    width:100%;
    aspect-ratio:16/9;
    object-fit:cover;
}
.live-status{
    position:absolute;
    top:14px;left:14px;
    z-index:2;
}
.live-countdown{
    position:absolute;
    bottom:14px;
    left:14px;
    z-index:2;
    display:flex;
    gap:8px;
    align-items:flex-end;
}
.live-countdown-item{
    background:rgba(255,255,255,0.1);
    backdrop-filter:blur(4px);
    border-radius:10px;
    padding:8px 6px;
    min-width:56px;
    text-align:center;
    border:1px solid rgba(255,255,255,0.12);
}
.live-countdown-item .num{
    font-size:28px;
    font-weight:800;
    color:var(--c-accent);
    line-height:1.2;
    font-variant-numeric:tabular-nums;
}
.live-countdown-item .label{
    font-size:12px;
    color:rgba(255,255,255,0.65);
    display:block;
    margin-top:2px;
}
.live-points{
    list-style:none;
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:10px 24px;
    margin-top:8px;
}
.live-points li{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:14px;
    color:rgba(255,255,255,0.88);
}
.live-points li i{
    color:var(--c-aqua);
    font-size:14px;
    width:18px;
    text-align:center;
}
.hero-right{
    display:flex;
    flex-direction:column;
    gap:24px;
    background:rgba(255,255,255,0.05);
    border:1px solid rgba(255,255,255,0.1);
    border-radius:var(--radius-lg);
    padding:28px;
    backdrop-filter:blur(6px);
}
.hero-right-title{
    font-size:18px;
    font-weight:700;
    color:#fff;
}
.hero-right-title span{
    color:var(--c-accent);
}
.countdown-grid{
    display:flex;
    gap:10px;
}
.countdown-grid .cd-item{
    flex:1;
    background:rgba(255,255,255,0.08);
    border-radius:12px;
    padding:10px 4px;
    text-align:center;
    border:1px solid rgba(255,255,255,0.1);
}
.countdown-grid .cd-item .num{
    font-size:32px;
    font-weight:800;
    color:var(--c-accent);
    line-height:1.2;
    font-variant-numeric:tabular-nums;
}
.countdown-grid .cd-item .label{
    font-size:13px;
    color:rgba(255,255,255,0.6);
    display:block;
    margin-top:4px;
}
.remind-form{
    display:flex;
    gap:8px;
    margin-top:4px;
}
.remind-form input{
    flex:1;
    background:#fff;
    border:1px solid #D8D2C6;
    border-radius:10px;
    padding:11px 16px;
    font-size:14px;
    color:var(--c-text);
    min-width:0;
}
.remind-form input:focus{
    border-color:var(--c-aqua);
    box-shadow:0 0 0 4px rgba(47,168,155,0.2);
}
.remind-form .btn{
    flex-shrink:0;
}
.remind-note{
    font-size:12px;
    color:rgba(255,255,255,0.5);
    margin-top:4px;
}
.hero-links{
    display:flex;
    gap:10px;
    flex-wrap:wrap;
}
.hero-links a{
    font-size:13px;
    padding:8px 14px;
    border-radius:8px;
    border:1px solid rgba(255,255,255,0.3);
    color:rgba(255,255,255,0.8);
    display:inline-flex;
    align-items:center;
    gap:6px;
    transition:all var(--transition);
}
.hero-links a:hover{
    border-color:var(--c-accent);
    background:rgba(245,184,61,0.15);
    color:var(--c-accent);
}
/* ===== News Section ===== */
.news-section{
    padding:72px 0;
}
.news-list{
    display:flex;
    flex-direction:column;
    gap:24px;
}
.news-card{
    display:grid;
    grid-template-columns:5fr 7fr;
    gap:0;
    background:var(--c-surface);
    border:1px solid var(--c-border);
    border-radius:var(--radius-lg);
    overflow:hidden;
    box-shadow:var(--shadow-card);
    transition:box-shadow var(--transition),border-color var(--transition);
}
.news-card:hover{
    box-shadow:var(--shadow-hover);
    border-color:var(--c-accent);
}
.news-card.news-row-reverse{
    grid-template-columns:7fr 5fr;
}
.news-card.news-row-reverse .news-media{
    order:2;
}
.news-card.news-row-reverse .news-body{
    order:1;
}
.news-media{
    overflow:hidden;
    aspect-ratio:4/3;
    min-height:220px;
    background:#E8E3D8;
}
.news-media img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform 0.4s ease;
}
.news-card:hover .news-media img{
    transform:scale(1.02);
}
.news-body{
    padding:24px;
    display:flex;
    flex-direction:column;
    gap:10px;
    justify-content:center;
}
.news-tags{
    display:flex;
    gap:8px;
    flex-wrap:wrap;
}
.news-title{
    font-size:20px;
    font-weight:700;
    line-height:1.4;
}
.news-title a{
    color:var(--c-text);
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
}
.news-title a:hover{
    color:var(--c-aqua);
}
.news-excerpt{
    font-size:15px;
    color:var(--c-muted);
    line-height:1.7;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
}
.news-meta{
    display:flex;
    align-items:center;
    justify-content:space-between;
    margin-top:6px;
    padding-top:14px;
    border-top:1px solid var(--c-border);
}
.news-date{
    font-size:13px;
    color:var(--c-muted);
    display:inline-flex;
    align-items:center;
    gap:6px;
}
.news-link{
    font-size:14px;
    font-weight:600;
    color:var(--c-aqua);
    display:inline-flex;
    align-items:center;
    gap:6px;
    transition:gap var(--transition);
}
.news-link:hover{
    color:#1D7F75;
    gap:10px;
}
.empty-state{
    border:2px dashed var(--c-border);
    border-radius:var(--radius-lg);
    padding:60px 24px;
    text-align:center;
    background:#FAFAF7;
}
.empty-state i{
    font-size:36px;
    color:#C4C9C4;
    margin-bottom:14px;
}
.empty-state p{
    font-size:16px;
    color:var(--c-muted);
}
/* ===== Column Matrix ===== */
.matrix-section{
    padding:72px 0;
    background:var(--c-surface);
}
.matrix-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    grid-template-areas:
        "big1 big2"
        "small1 small2 small3 small4";
    gap:20px;
}
.matrix-big-card{
    border-radius:var(--radius-lg);
    padding:32px;
    min-height:220px;
    position:relative;
    overflow:hidden;
    display:flex;
    flex-direction:column;
    justify-content:flex-end;
    background-size:cover;
    background-position:center;
    border:1px solid var(--c-border);
    transition:transform var(--transition),box-shadow var(--transition);
}
.matrix-big-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-hover);
}
.matrix-big-card::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(180deg,rgba(11,31,26,0.1),rgba(11,31,26,0.75));
    border-radius:var(--radius-lg);
}
.matrix-big-card .matrix-content{
    position:relative;
    z-index:2;
    color:#fff;
}
.matrix-big-card .matrix-icon{
    font-size:28px;
    color:var(--c-accent);
    margin-bottom:10px;
}
.matrix-big-card h3{
    font-size:22px;
    font-weight:700;
    margin-bottom:6px;
}
.matrix-big-card p{
    font-size:14px;
    color:rgba(255,255,255,0.8);
    line-height:1.6;
    max-width:320px;
}
.matrix-small-grid{
    grid-area:small1 / small1 / small4 / small4;
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:20px;
}
.matrix-small-card{
    background:var(--c-bg);
    border:1px solid var(--c-border);
    border-radius:var(--radius-md);
    padding:22px 18px;
    display:flex;
    flex-direction:column;
    gap:8px;
    transition:all var(--transition);
}
.matrix-small-card:hover{
    border-color:var(--c-accent);
    box-shadow:var(--shadow-hover);
    transform:translateY(-3px);
    background:var(--c-surface);
}
.matrix-small-card i{
    font-size:22px;
    color:var(--c-aqua);
}
.matrix-small-card h4{
    font-size:16px;
    font-weight:700;
    color:var(--c-text);
}
.matrix-small-card p{
    font-size:13px;
    color:var(--c-muted);
    line-height:1.5;
}
.matrix-small-card .small-link{
    font-size:13px;
    font-weight:600;
    color:var(--c-aqua);
    margin-top:4px;
    display:inline-flex;
    align-items:center;
    gap:4px;
}
/* ===== Stats Bar ===== */
.stats-section{
    padding:48px 0;
    background:var(--c-primary);
    color:#fff;
}
.stats-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:40px;
    text-align:center;
}
.stat-item .stat-num{
    font-size:44px;
    font-weight:800;
    color:var(--c-accent);
    line-height:1.2;
    font-variant-numeric:tabular-nums;
}
.stat-item .stat-label{
    font-size:14px;
    color:rgba(255,255,255,0.7);
    margin-top:6px;
}
.stat-item .stat-desc{
    font-size:13px;
    color:rgba(255,255,255,0.5);
    margin-top:2px;
}
/* ===== FAQ ===== */
.faq-section{
    padding:72px 0;
}
.faq-wrap{
    max-width:820px;
    margin:0 auto;
}
.faq-item{
    background:var(--c-surface);
    border:1px solid var(--c-border);
    border-radius:var(--radius-md);
    margin-bottom:12px;
    overflow:hidden;
    transition:border-color var(--transition),box-shadow var(--transition);
}
.faq-item.active{
    border-color:var(--c-aqua);
    box-shadow:0 4px 20px rgba(47,168,155,0.1);
}
.faq-question{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:18px 22px;
    background:none;
    border:none;
    text-align:left;
    font-size:16px;
    font-weight:700;
    color:var(--c-text);
    gap:16px;
    transition:color var(--transition);
}
.faq-question:hover{
    color:var(--c-aqua);
}
.faq-question .faq-icon{
    flex-shrink:0;
    width:24px;height:24px;
    display:flex;
    align-items:center;
    justify-content:center;
    border-radius:50%;
    background:rgba(47,168,155,0.1);
    color:var(--c-aqua);
    font-size:14px;
    transition:transform 0.3s ease;
}
.faq-item.active .faq-question .faq-icon{
    transform:rotate(45deg);
    background:var(--c-aqua);
    color:#fff;
}
.faq-answer{
    max-height:0;
    overflow:hidden;
    transition:max-height 0.3s ease;
}
.faq-item.active .faq-answer{
    max-height:500px;
}
.faq-answer-inner{
    padding:0 22px 20px;
    font-size:15px;
    color:var(--c-muted);
    line-height:1.75;
    border-top:1px solid var(--c-border);
    padding-top:14px;
}
.faq-answer-inner ul{
    list-style:disc;
    padding-left:20px;
    margin-top:6px;
}
.faq-answer-inner li{
    margin-bottom:4px;
}
/* ===== CTA ===== */
.cta-section{
    padding:0;
}
.cta-banner{
    background:
        linear-gradient(120deg,rgba(11,31,26,0.92),rgba(18,51,42,0.85)),
        url('/assets/images/backpic/back-2.png');
    background-size:cover;
    background-position:center;
    border-radius:24px;
    padding:56px 48px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:32px;
    flex-wrap:wrap;
    color:#fff;
    position:relative;
    overflow:hidden;
    margin-bottom:72px;
}
.cta-banner::before{
    content:"";
    position:absolute;
    top:-40px;right:-40px;
    width:200px;height:200px;
    border-radius:50%;
    background:rgba(245,184,61,0.15);
    pointer-events:none;
}
.cta-content h3{
    font-size:26px;
    font-weight:800;
    line-height:1.4;
    margin-bottom:10px;
}
.cta-content h3 span{
    color:var(--c-accent);
}
.cta-content p{
    color:rgba(255,255,255,0.7);
    font-size:15px;
    line-height:1.6;
}
.cta-action{
    flex-shrink:0;
}
/* ===== Footer ===== */
.site-footer{
    background:var(--c-primary);
    color:rgba(255,255,255,0.8);
    padding:64px 0 0;
}
.footer-grid{
    display:grid;
    grid-template-columns:1.4fr 0.8fr 0.8fr 1fr;
    gap:40px;
    padding-bottom:40px;
}
.footer-brand{
    font-size:20px;
    font-weight:800;
    color:#fff;
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:14px;
}
.footer-brand .brand-icon{
    background:var(--c-accent);
    color:var(--c-primary);
}
.footer-desc{
    font-size:14px;
    color:rgba(255,255,255,0.6);
    line-height:1.7;
    margin-bottom:18px;
}
.footer-social{
    display:flex;
    gap:8px;
}
.footer-social a{
    width:34px;height:34px;
    border-radius:50%;
    background:rgba(255,255,255,0.08);
    display:flex;
    align-items:center;
    justify-content:center;
    color:rgba(255,255,255,0.7);
    font-size:14px;
    transition:all var(--transition);
}
.footer-social a:hover{
    background:var(--c-accent);
    color:var(--c-primary);
    transform:translateY(-2px);
}
.footer-title{
    font-size:16px;
    font-weight:700;
    color:#fff;
    margin-bottom:16px;
    position:relative;
    padding-bottom:10px;
}
.footer-title::after{
    content:"";
    position:absolute;
    left:0;bottom:0;
    width:28px;height:2px;
    background:var(--c-accent);
}
.footer-links li{
    margin-bottom:9px;
}
.footer-links a{
    color:rgba(255,255,255,0.6);
    font-size:14px;
    display:inline-flex;
    align-items:center;
    gap:6px;
    transition:all var(--transition);
}
.footer-links a:hover{
    color:var(--c-accent);
    transform:translateX(3px);
}
.footer-contact p{
    font-size:14px;
    color:rgba(255,255,255,0.6);
    margin-bottom:8px;
    line-height:1.6;
}
.footer-contact i{
    color:var(--c-aqua);
    width:18px;
}
.footer-newsletter{
    display:flex;
    gap:8px;
    margin-top:14px;
}
.footer-newsletter input{
    flex:1;
    background:rgba(255,255,255,0.08);
    border:1px solid rgba(255,255,255,0.12);
    border-radius:8px;
    padding:9px 14px;
    color:#fff;
    font-size:14px;
    min-width:0;
}
.footer-newsletter input:focus{
    border-color:var(--c-aqua);
    box-shadow:0 0 0 4px rgba(47,168,155,0.2);
}
.footer-newsletter input::placeholder{
    color:rgba(255,255,255,0.4);
}
.footer-bottom{
    border-top:1px solid rgba(255,255,255,0.08);
    padding:18px 0;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    flex-wrap:wrap;
    font-size:13px;
    color:rgba(255,255,255,0.4);
}
.footer-bottom a{
    color:rgba(255,255,255,0.5);
    transition:color var(--transition);
}
.footer-bottom a:hover{
    color:var(--c-accent);
}
/* ===== Focus States ===== */
:focus-visible{
    outline:3px solid rgba(245,184,61,0.5);
    outline-offset:2px;
}
/* ===== Responsive ===== */
@media (max-width:1199px){
    .hero-inner{
        grid-template-columns:1fr 1fr;
        gap:32px;
    }
    .live-points{
        grid-template-columns:1fr;
    }
    .matrix-small-grid{
        grid-template-columns:repeat(2,1fr);
    }
}
@media (max-width:991px){
    .hero{
        padding:40px 0 56px;
    }
    .hero-inner{
        grid-template-columns:1fr;
        gap:32px;
    }
    .hero-right{
        max-width:100%;
    }
    .section{padding:56px 0;}
    .news-card,.news-card.news-row-reverse{
        grid-template-columns:1fr;
    }
    .news-card.news-row-reverse .news-media{
        order:0;
    }
    .news-card.news-row-reverse .news-body{
        order:1;
    }
    .news-media{
        aspect-ratio:16/9;
        min-height:auto;
    }
    .matrix-grid{
        grid-template-columns:1fr;
        grid-template-areas:
            "big1"
            "big2"
            "small1 small2"
            "small3 small4";
    }
    .stats-grid{
        gap:24px;
    }
    .stat-item .stat-num{
        font-size:36px;
    }
    .footer-grid{
        grid-template-columns:1fr 1fr;
    }
    .nav-top-actions .search-box{
        display:none;
    }
    .nav-toggle{
        display:block;
    }
    .nav-channels{
        display:none;
    }
    .nav-channels.open{
        display:block;
        border-top:1px solid rgba(255,255,255,0.08);
        padding:12px 0;
    }
    .nav-channels-inner{
        flex-direction:column;
        align-items:flex-start;
        gap:12px;
    }
    .channel-nav{
        width:100%;
        flex-wrap:wrap;
    }
    .nav-link{
        flex:1;
        justify-content:center;
        padding:10px 8px;
        font-size:14px;
    }
    .nav-link.active::after{
        left:20%;
        right:20%;
    }
    .trend-tags{
        width:100%;
        justify-content:center;
    }
}
@media (max-width:767px){
    .container{
        padding-left:16px;
        padding-right:16px;
    }
    .section{padding:44px 0;}
    .hero{
        padding:32px 0 44px;
    }
    .hero-title{
        font-size:28px;
    }
    .hero-sub{
        font-size:14px;
    }
    .live-preview-wrap{
        border-width:1px;
    }
    .live-countdown-item{
        min-width:48px;
        padding:6px 4px;
    }
    .live-countdown-item .num{
        font-size:22px;
    }
    .live-points{
        grid-template-columns:1fr;
    }
    .hero-right{
        padding:22px 16px;
    }
    .countdown-grid .cd-item .num{
        font-size:26px;
    }
    .remind-form{
        flex-direction:column;
    }
    .remind-form input,.remind-form .btn{
        width:100%;
        border-radius:10px;
    }
    .section-title{
        font-size:22px;
    }
    .news-body{
        padding:18px;
    }
    .news-title{
        font-size:18px;
    }
    .news-meta{
        flex-direction:column;
        align-items:flex-start;
        gap:6px;
    }
    .matrix-grid{
        grid-template-columns:1fr;
        grid-template-areas:
            "big1"
            "big2"
            "small1"
            "small2"
            "small3"
            "small4";
    }
    .matrix-big-card{
        min-height:180px;
        padding:24px;
    }
    .stats-grid{
        grid-template-columns:1fr;
        gap:20px;
    }
    .stat-item .stat-num{
        font-size:32px;
    }
    .cta-banner{
        padding:36px 22px;
        flex-direction:column;
        align-items:flex-start;
    }
    .footer-grid{
        grid-template-columns:1fr;
        gap:32px;
    }
    .footer-bottom{
        flex-direction:column;
        text-align:center;
    }
    .search-box input{
        width:140px;
    }
}

/* roulang page: article */
:root {
            --c-primary: #0B1F1A;
            --c-primary-light: #12332A;
            --c-accent: #F5B83D;
            --c-accent-hover: #FFC75F;
            --c-aqua: #2FA89B;
            --c-bg: #F7F5F0;
            --c-surface: #FFFFFF;
            --c-text: #1E2B26;
            --c-muted: #5E6F68;
            --c-border: #E6E0D6;
            --radius: 16px;
            --shadow: 0 2px 12px rgba(11, 31, 26, 0.06);
            --shadow-hover: 0 8px 28px rgba(11, 31, 26, 0.12);
            --max-width: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            background: var(--c-bg);
            color: var(--c-text);
            line-height: 1.6;
            font-size: 16px;
        }

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

        a {
            text-decoration: none;
            color: var(--c-aqua);
            transition: color 0.2s ease;
        }

        a:hover {
            color: #1D7F75;
        }

        ul,
        ol {
            list-style: none;
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--c-primary);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
        }

        .nav-top {
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .nav-top-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

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

        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--c-accent), #D99A1E);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--c-primary);
        }

        .brand-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .brand-text em {
            font-style: normal;
            color: var(--c-accent);
        }

        .nav-top-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 10px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .search-box input {
            background: transparent;
            border: none;
            outline: none;
            color: #fff;
            padding: 8px 14px;
            font-size: 13px;
            width: 180px;
        }

        .search-box input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }

        .search-box button {
            background: transparent;
            border: none;
            color: rgba(255, 255, 255, 0.6);
            padding: 8px 12px;
            cursor: pointer;
        }

        .search-box button:hover {
            color: var(--c-accent);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            font-weight: 700;
            border-radius: 10px;
            padding: 12px 24px;
            cursor: pointer;
            transition: all 0.2s ease;
            border: none;
            font-size: 14px;
        }

        .btn-accent {
            background: var(--c-accent);
            color: var(--c-primary);
        }

        .btn-accent:hover {
            background: var(--c-accent-hover);
            color: var(--c-primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245, 184, 61, 0.3);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 8px;
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.75);
            color: rgba(255, 255, 255, 0.9);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 20px;
            cursor: pointer;
            padding: 8px;
        }

        .nav-channels-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            overflow-x: auto;
            scrollbar-width: none;
        }

        .channel-nav::-webkit-scrollbar {
            display: none;
        }

        .nav-link {
            display: block;
            padding: 14px 16px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            font-weight: 500;
            position: relative;
            white-space: nowrap;
            border-bottom: 2px solid transparent;
        }

        .nav-link:hover {
            color: #fff;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--c-accent);
            transform: scaleX(0);
            transition: transform 0.25s ease;
        }

        .nav-link.active {
            color: var(--c-accent);
        }

        .nav-link.active::after {
            transform: scaleX(1);
        }

        .trend-tags {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 0;
        }

        .trend-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .trend-link {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
            padding: 4px 10px;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.06);
        }

        .trend-link:hover {
            color: var(--c-accent);
            background: rgba(255, 255, 255, 0.1);
        }

        /* Article Card */
        .article-hero {
            padding: 40px 0 20px;
        }

        .article-card {
            background: var(--c-surface);
            border-radius: var(--radius);
            border: 1px solid var(--c-border);
            box-shadow: var(--shadow);
            overflow: hidden;
        }

        .article-card-cover {
            width: 100%;
            height: 420px;
            object-fit: cover;
            background: #E8E3D8;
            position: relative;
        }

        .article-card-body {
            padding: 40px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--c-muted);
            margin-bottom: 24px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--c-border);
        }

        .breadcrumb a {
            color: var(--c-aqua);
        }

        .breadcrumb .sep {
            color: var(--c-border);
        }

        .article-category {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(47, 168, 155, 0.12);
            color: var(--c-aqua);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .article-title {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--c-text);
            margin-bottom: 16px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--c-muted);
        }

        .article-meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta-item i {
            color: var(--c-aqua);
        }

        /* Content */
        .article-content {
            padding: 40px;
            border-top: 1px solid var(--c-border);
        }

        .article-content-inner {
            max-width: 760px;
            margin: 0 auto;
        }

        .article-content-inner p {
            font-size: 17px;
            line-height: 1.75;
            margin-bottom: 22px;
            color: var(--c-text);
        }

        .article-content-inner h2,
        .article-content-inner h3 {
            font-size: 22px;
            font-weight: 700;
            margin: 36px 0 16px;
            color: var(--c-text);
            line-height: 1.4;
        }

        .article-content-inner h3 {
            font-size: 19px;
            margin: 28px 0 14px;
        }

        .article-content-inner img {
            border-radius: 12px;
            box-shadow: inset 0 2px 8px rgba(11, 31, 26, 0.08);
            margin: 24px 0;
        }

        .article-content-inner blockquote {
            border-left: 4px solid var(--c-aqua);
            background: var(--c-bg);
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
            color: var(--c-muted);
            font-size: 15px;
            line-height: 1.75;
        }

        .article-content-inner ul,
        .article-content-inner ol {
            margin-bottom: 22px;
            padding-left: 24px;
        }

        .article-content-inner ul li {
            list-style-type: disc;
            margin-bottom: 8px;
            font-size: 17px;
            line-height: 1.75;
        }

        .article-content-inner ol li {
            list-style-type: decimal;
            margin-bottom: 8px;
            font-size: 17px;
            line-height: 1.75;
        }

        .article-content-inner a {
            text-decoration: underline;
            text-underline-offset: 2px;
        }

        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }

        .article-not-found .icon-circle {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: var(--c-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 24px;
            font-size: 28px;
            color: var(--c-muted);
        }

        .article-not-found h2 {
            font-size: 24px;
            margin-bottom: 12px;
        }

        .article-not-found p {
            color: var(--c-muted);
            margin-bottom: 24px;
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--c-primary);
            color: var(--c-primary);
        }

        .btn-outline:hover {
            background: rgba(11, 31, 26, 0.06);
            color: var(--c-primary);
        }

        /* Related */
        .related-section {
            padding: 60px 0;
        }

        .related-card {
            background: var(--c-surface);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--c-border);
            box-shadow: var(--shadow);
            transition: all 0.25s ease;
        }

        .related-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--c-accent);
            transform: translateY(-3px);
        }

        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: #E8E3D8;
        }

        .related-card-body {
            padding: 20px;
        }

        .related-card-body h4 {
            font-size: 16px;
            line-height: 1.4;
            margin-bottom: 10px;
            color: var(--c-text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card-body .time {
            font-size: 13px;
            color: var(--c-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .related-card-body .time i {
            color: var(--c-aqua);
        }

        /* Footer */
        .site-footer {
            background: var(--c-primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 0;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .brand-icon {
            width: 34px;
            height: 34px;
            font-size: 15px;
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.75;
            margin-bottom: 20px;
            max-width: 320px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
            transition: all 0.2s ease;
        }

        .footer-social a:hover {
            background: var(--c-accent);
            color: var(--c-primary);
        }

        .footer-title {
            font-size: 15px;
            color: #fff;
            margin-bottom: 16px;
            font-weight: 700;
        }

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color 0.2s ease;
        }

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

        .footer-contact p {
            font-size: 14px;
            margin-bottom: 10px;
            color: rgba(255, 255, 255, 0.65);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact i {
            color: var(--c-aqua);
            width: 16px;
        }

        .footer-newsletter {
            display: flex;
            gap: 8px;
            margin-top: 16px;
        }

        .footer-newsletter input {
            flex: 1;
            padding: 10px 14px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            font-size: 14px;
            outline: none;
        }

        .footer-newsletter input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-newsletter input:focus {
            border-color: var(--c-aqua);
            box-shadow: 0 0 0 4px rgba(47, 168, 155, 0.2);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

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

        /* Responsive */
        @media (max-width: 992px) {
            .container {
                padding: 0 16px;
            }

            .search-box {
                display: none;
            }

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

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

            .article-card-body {
                padding: 28px;
            }

            .article-content {
                padding: 28px;
            }

            .article-card-cover {
                height: 320px;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }

            .nav-top-actions .btn-accent {
                display: none;
            }

            .channel-nav {
                overflow-x: auto;
            }

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

            .trend-tags {
                display: none;
            }

            .nav-channels-inner {
                overflow-x: auto;
            }

            .article-card-cover {
                height: 220px;
            }

            .article-card-body {
                padding: 20px;
            }

            .article-content {
                padding: 20px;
            }

            .article-title {
                font-size: 24px;
            }

            .article-meta {
                gap: 10px;
                font-size: 12px;
            }

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

            .related-section .row {
                flex-direction: column;
            }

            .row {
                --bs-gutter-x: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .brand-text {
                font-size: 17px;
            }

            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }

            .nav-link {
                font-size: 14px;
                padding: 10px 12px;
            }

            .article-title {
                font-size: 22px;
            }

            .article-meta {
                display: flex;
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }

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

        @media (min-width: 1200px) {
            .container {
                max-width: 1200px;
            }
        }

        /* Focus */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(245, 184, 61, 0.5);
            outline-offset: 2px;
        }

/* roulang page: category1 */
/* ========== 设计变量 ========== */
:root {
    --primary: #0B1F1A;
    --primary-light: #12332A;
    --accent: #F5B83D;
    --accent-hover: #FFC75F;
    --aqua: #2FA89B;
    --aqua-dark: #1D7F75;
    --bg: #F7F5F0;
    --surface: #FFFFFF;
    --text: #1E2B26;
    --muted: #5E6F68;
    --border: #E6E0D6;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 2px 12px rgba(11, 31, 26, 0.06);
    --shadow-lg: 0 8px 28px rgba(11, 31, 26, 0.12);
    --container: 1200px;
    --transition: 0.2s ease;
    --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
}
/* ========== Reset / Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-stack);
    font-size: 17px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--aqua); text-decoration: none; transition: color var(--transition), background var(--transition), border-color var(--transition); }
a:hover { color: var(--aqua-dark); }
ul, ol { list-style: none; }
button, input { font-family: inherit; font-size: inherit; border: none; outline: none; }

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
}
.section { padding: 72px 0; position: relative; }

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 15px;
    line-height: 1.2;
    cursor: pointer;
    transition: all var(--transition);
    border: 0;
    text-decoration: none;
}
.btn-accent { background: var(--accent); color: var(--primary); }
.btn-accent:hover { background: var(--accent-hover); color: var(--primary); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(245, 184, 61, 0.35); }
.btn-outline { background: transparent; border: 1px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: rgba(11, 31, 26, 0.06); color: var(--primary); }
.btn-outline-light { background: transparent; border: 1px solid rgba(255, 255, 255, 0.9); color: rgba(255, 255, 255, 0.95); }
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.1); color: #fff; border-color: #fff; }
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn:focus-visible { outline: 3px solid rgba(245, 184, 61, 0.4); outline-offset: 2px; }

/* ========== 徽章 / 标签 ========== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    line-height: 1.4;
}
.badge-aqua { background: rgba(47, 168, 155, 0.15); color: var(--aqua); }
.badge-dark { background: rgba(255, 255, 255, 0.12); color: rgba(255, 255, 255, 0.9); }

/* ========== 区块标题 ========== */
.section-head { margin-bottom: 40px; max-width: 720px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--aqua);
    margin-bottom: 10px;
}
.section-head h2 {
    font-size: 26px;
    font-weight: 800;
    line-height: 1.3;
    color: var(--primary);
    margin-bottom: 12px;
}
.section-head p { color: var(--muted); font-size: 15px; line-height: 1.7; }

/* ========== 导航 ========== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--primary);
    box-shadow: 0 4px 20px rgba(11, 31, 26, 0.3);
    transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled { background: rgba(11, 31, 26, 0.92); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.nav-top { border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.nav-top-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    gap: 20px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; flex-shrink: 0; }
.brand-icon {
    width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent), #FFD27D);
    border-radius: 9px;
    color: var(--primary);
    font-size: 16px;
}
.brand-text {
    font-size: 18px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 0.5px;
    white-space: nowrap;
}
.brand-text em { font-style: normal; color: var(--accent); }
.nav-top-actions { display: flex; align-items: center; gap: 12px; }
.search-box { display: flex; align-items: center; background: rgba(255, 255, 255, 0.1); border-radius: 999px; padding: 4px 6px; gap: 4px; width: 220px; transition: background 0.2s; }
.search-box input {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.9);
    padding: 7px 10px;
    font-size: 13px;
    width: 100%;
}
.search-box input::placeholder { color: rgba(255, 255, 255, 0.5); }
.search-box button {
    background: transparent;
    color: rgba(255, 255, 255, 0.7);
    padding: 6px 10px;
    border-radius: 999px;
    cursor: pointer;
    transition: color 0.2s;
}
.search-box button:hover { color: var(--accent); }
.nav-toggle {
    display: none;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    width: 38px;
    height: 38px;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
}
.nav-channels { border-top: 0; position: relative; }
.nav-channels-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    min-height: 46px;
}
.channel-nav { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 12px 14px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.2s;
    white-space: nowrap;
}
.nav-link::after {
    content: '';
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 6px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.25s ease;
}
.nav-link:hover { color: var(--accent-hover); }
.nav-link.active { color: var(--accent); font-weight: 700; }
.nav-link.active::after { transform: scaleX(1); }
.nav-link:focus-visible { outline: 2px solid rgba(245, 184, 61, 0.5); outline-offset: -2px; border-radius: 6px; }
.trend-tags { display: flex; align-items: center; gap: 12px; font-size: 13px; white-space: nowrap; }
.trend-label { color: rgba(255, 255, 255, 0.7); display: inline-flex; align-items: center; gap: 4px; }
.trend-link { color: rgba(255, 255, 255, 0.6); text-decoration: none; transition: color 0.2s; }
.trend-link:hover { color: var(--accent); }

/* ========== 分类 Hero ========== */
.category-hero {
    position: relative;
    padding: 96px 0;
    background: linear-gradient(135deg, #0B1F1A 0%, #12332A 60%, #1E4A3C 100%);
    overflow: hidden;
}
.category-hero::before {
    content: '';
    position: absolute;
    top: -120px;
    left: -80px;
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(245, 184, 61, 0.18), transparent 70%);
    pointer-events: none;
}
.category-hero::after {
    content: '';
    position: absolute;
    bottom: -160px;
    right: -60px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(47, 168, 155, 0.22), transparent 70%);
    pointer-events: none;
}
.category-hero .container { position: relative; z-index: 2; }
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 36px;
}
.breadcrumb a { color: rgba(255, 255, 255, 0.65); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: rgba(255, 255, 255, 0.9); }
.category-hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
    align-items: center;
}
.category-hero-text h1 {
    font-size: 40px;
    font-weight: 800;
    line-height: 1.25;
    color: #fff;
    margin: 16px 0;
}
.category-hero-text h1 em { font-style: normal; color: var(--accent); }
.category-hero-desc {
    font-size: 17px;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.8);
    max-width: 520px;
    margin-bottom: 28px;
}
.category-hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.category-hero-card {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(47, 168, 155, 0.35);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}
.category-hero-card img { width: 100%; height: 360px; object-fit: cover; display: block; }
.category-hero-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(11, 31, 26, 0.45), transparent 60%);
    pointer-events: none;
}

/* ========== 栏目介绍 ========== */
.cat-intro { background: var(--surface); }
.cat-intro-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 56px;
    align-items: center;
}
.cat-intro-media { position: relative; }
.cat-intro-media img {
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    width: 100%;
    height: 400px;
    object-fit: cover;
}
.cat-intro-media::before {
    content: '';
    position: absolute;
    top: -18px;
    left: -18px;
    width: 140px;
    height: 140px;
    border-radius: 20px;
    background: rgba(47, 168, 155, 0.1);
    z-index: 0;
}
.cat-intro-media img { position: relative; z-index: 1; }
.cat-intro-content { padding: 20px 0; }
.cat-intro-content h2 {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.35;
    margin-bottom: 18px;
}
.cat-intro-content p { color: var(--muted); line-height: 1.8; margin-bottom: 16px; font-size: 15px; }
.cat-intro-list { margin-top: 20px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px 24px; }
.cat-intro-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text);
    font-weight: 500;
}
.cat-intro-list li i { color: var(--aqua); font-size: 14px; width: 18px; text-align: center; }

/* ========== 子主题网格 ========== */
.cat-subtopics { background: var(--bg); }
.subtopic-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.subtopic-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    display: block;
    text-decoration: none;
}
.subtopic-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
    transform: translateY(-4px);
}
.subtopic-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--primary);
    background: rgba(245, 184, 61, 0.2);
    margin-bottom: 16px;
    transition: background 0.3s;
}
.subtopic-card:nth-child(2) .subtopic-icon { background: rgba(47, 168, 155, 0.15); color: var(--aqua); }
.subtopic-card:nth-child(3) .subtopic-icon { background: rgba(11, 31, 26, 0.08); color: var(--primary); }
.subtopic-card:nth-child(4) .subtopic-icon { background: rgba(245, 184, 61, 0.15); color: var(--accent); }
.subtopic-card:nth-child(5) .subtopic-icon { background: rgba(47, 168, 155, 0.12); color: var(--aqua); }
.subtopic-card:nth-child(6) .subtopic-icon { background: rgba(11, 31, 26, 0.06); color: var(--primary); }
.subtopic-card h3 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.subtopic-card p { font-size: 14px; color: var(--muted); line-height: 1.6; margin-bottom: 16px; }
.subtopic-more { font-size: 13px; font-weight: 600; color: var(--aqua); display: inline-flex; align-items: center; gap: 6px; }
.subtopic-more i { transition: transform 0.2s; }
.subtopic-card:hover .subtopic-more i { transform: translateX(4px); }

/* ========== 特色 / 数据 ========== */
.cat-features {
    background: linear-gradient(135deg, #0B1F1A, #12332A);
    color: #fff;
    overflow: hidden;
}
.cat-features .section-head h2 { color: #fff; }
.cat-features .section-head p { color: rgba(255, 255, 255, 0.7); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.stat-item {
    text-align: center;
    padding: 36px 20px;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: background 0.3s;
}
.stat-item:hover { background: rgba(255, 255, 255, 0.09); }
.stat-num {
    font-size: 44px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.1;
    margin-bottom: 8px;
}
.stat-label { font-size: 14px; color: rgba(255, 255, 255, 0.75); }

/* ========== 场景区 ========== */
.cat-scenarios { background: var(--surface); }
.scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.scenario-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--surface);
    transition: box-shadow 0.3s, transform 0.3s;
}
.scenario-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.scenario-media img { width: 100%; height: 180px; object-fit: cover; }
.scenario-content { padding: 24px; }
.scenario-phase {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    color: var(--aqua);
    background: rgba(47, 168, 155, 0.1);
    padding: 4px 10px;
    border-radius: 999px;
    margin-bottom: 12px;
    letter-spacing: 1px;
}
.scenario-card:nth-child(2) .scenario-phase { color: var(--accent); background: rgba(245, 184, 61, 0.15); }
.scenario-card:nth-child(3) .scenario-phase { color: var(--primary); background: rgba(11, 31, 26, 0.08); }
.scenario-content h3 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.scenario-content p { font-size: 14px; color: var(--muted); line-height: 1.7; margin-bottom: 14px; }
.scenario-list { display: flex; flex-direction: column; gap: 8px; }
.scenario-list li { display: flex; align-items: flex-start; gap: 8px; font-size: 13px; color: var(--text); line-height: 1.6; }
.scenario-list li i { color: var(--aqua); font-size: 12px; margin-top: 3px; }

/* ========== FAQ ========== */
.faq-section { background: var(--bg); }
.faq-list { max-width: 780px; margin: 0 auto; }
.faq-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color 0.3s, box-shadow 0.3s;
}
.faq-item.open { border-color: var(--aqua); box-shadow: var(--shadow); }
.faq-question {
    width: 100%;
    text-align: left;
    padding: 20px 24px;
    background: transparent;
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    transition: background 0.2s;
}
.faq-question:hover { background: rgba(47, 168, 155, 0.04); }
.faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(47, 168, 155, 0.1);
    color: var(--aqua);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: transform 0.3s ease, background 0.3s;
    flex-shrink: 0;
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--aqua); color: #fff; }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.3s ease;
    padding: 0 24px;
}
.faq-item.open .faq-answer { max-height: 600px; padding: 0 24px 20px; }
.faq-answer p { font-size: 14px; color: var(--muted); line-height: 1.75; }
.faq-answer ul { margin-top: 8px; display: flex; flex-direction: column; gap: 6px; }
.faq-answer li { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; color: var(--muted); line-height: 1.7; }
.faq-answer li i { color: var(--aqua); font-size: 12px; margin-top: 5px; }

/* ========== CTA ========== */
.cta-section { background: var(--primary); padding: 72px 0; position: relative; overflow: hidden; }
.cta-section::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -60px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(245, 184, 61, 0.2), transparent 70%);
}
.cta-section::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -40px;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(47, 168, 155, 0.18), transparent 70%);
}
.cta-box {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 48px;
    flex-wrap: wrap;
}
.cta-box h2 { font-size: 26px; font-weight: 800; color: #fff; line-height: 1.4; margin-bottom: 8px; }
.cta-box p { color: rgba(255, 255, 255, 0.7); font-size: 15px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ========== 页脚 ========== */
.site-footer { background: var(--primary); color: rgba(255, 255, 255, 0.8); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; }
.footer-brand { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.footer-desc { font-size: 14px; line-height: 1.75; color: rgba(255, 255, 255, 0.6); margin-bottom: 20px; max-width: 280px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.7);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    transition: all 0.2s;
}
.footer-social a:hover { background: var(--accent); color: var(--primary); }
.footer-title {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 18px;
    letter-spacing: 1px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: rgba(255, 255, 255, 0.6); font-size: 14px; text-decoration: none; transition: color 0.2s, padding-left 0.2s; }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }
.footer-contact p { font-size: 13px; color: rgba(255, 255, 255, 0.65); display: flex; align-items: center; gap: 8px; }
.footer-contact i { color: var(--accent); width: 16px; text-align: center; }
.footer-newsletter { display: flex; gap: 8px; }
.footer-newsletter input {
    flex: 1;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    color: #fff;
    font-size: 13px;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.footer-newsletter input::placeholder { color: rgba(255, 255, 255, 0.4); }
.footer-newsletter input:focus { border-color: var(--aqua); box-shadow: 0 0 0 4px rgba(47, 168, 155, 0.2); }
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 20px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
}

/* ========== 响应式 ========== */
@media (max-width: 1199px) {
    .subtopic-grid { grid-template-columns: repeat(2, 1fr); }
    .scenario-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 991px) {
    .container { padding-left: 20px; padding-right: 20px; }
    .category-hero-grid { grid-template-columns: 1fr; gap: 36px; }
    .cat-intro-grid { grid-template-columns: 1fr; gap: 32px; }
    .cat-intro-media img { height: 320px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .trend-tags { display: none; }
}
@media (max-width: 767px) {
    .section { padding: 56px 0; }
    .search-box { display: none; }
    .nav-toggle { display: inline-flex; }
    .nav-channels {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--primary);
        padding: 12px 20px 16px;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        box-shadow: 0 20px 30px rgba(0, 0, 0, 0.25);
    }
    .nav-channels.open { display: block; }
    .nav-channels-inner { flex-direction: column; align-items: flex-start; gap: 8px; }
    .channel-nav { flex-wrap: wrap; width: 100%; }
    .nav-link { padding: 10px 12px; }
    .trend-tags { display: flex; margin-top: 8px; }
    .category-hero { padding: 56px 0; }
    .category-hero-text h1 { font-size: 30px; }
    .category-hero-desc { font-size: 15px; }
    .category-hero-card img { height: 220px; }
    .cat-intro-list { grid-template-columns: 1fr; }
    .subtopic-grid, .scenario-grid, .stats-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .cta-box { padding: 32px 24px; flex-direction: column; text-align: center; }
    .cta-actions { justify-content: center; }
    .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 520px) {
    .brand-text { font-size: 15px; }
    .category-hero-actions .btn { width: 100%; }
    .cat-intro-content h2 { font-size: 23px; }
    .section-head h2 { font-size: 22px; }
}

/* roulang page: category2 */
:root{
  --c-primary:#0B1F1A;
  --c-primary-light:#12332A;
  --c-accent:#F5B83D;
  --c-accent-hover:#FFC75F;
  --c-aqua:#2FA89B;
  --c-aqua-dark:#1D7F75;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-text:#1E2B26;
  --c-muted:#5E6F68;
  --c-border:#E6E0D6;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 2px 12px rgba(11,31,26,0.06);
  --shadow-hover:0 8px 28px rgba(11,31,26,0.12);
  --transition:0.2s ease;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:var(--c-aqua);text-decoration:none;transition:color 0.2s ease,text-decoration-color 0.2s ease;}
a:hover{color:var(--c-aqua-dark);text-decoration:underline;text-underline-offset:2px;}
ul,ol{list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
.container{max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px;}
.section{padding:80px 0;}
.section-muted{background:#F0EDE6;}
.section-white{background:var(--c-surface);}
.section-head{margin-bottom:48px;max-width:760px;}
.section-head h2{
  font-size:26px;
  font-weight:800;
  line-height:1.3;
  color:var(--c-primary);
  margin-bottom:12px;
}
.section-head p{color:var(--c-muted);font-size:16px;}
.section-head .head-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(47,168,155,0.12);
  color:var(--c-aqua-dark);
  font-size:13px;
  font-weight:600;
  padding:4px 14px;
  border-radius:999px;
  margin-bottom:16px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--radius-sm);
  font-weight:700;
  padding:12px 24px;
  border:0;
  cursor:pointer;
  transition:var(--transition);
  font-size:15px;
  line-height:1.4;
}
.btn:focus-visible{outline:3px solid rgba(245,184,61,0.5);outline-offset:2px;}
.btn-accent{background:var(--c-accent);color:var(--c-primary);}
.btn-accent:hover{background:var(--c-accent-hover);color:var(--c-primary);transform:translateY(-2px);box-shadow:0 8px 20px rgba(245,184,61,0.3);text-decoration:none;}
.btn-outline{background:transparent;border:1px solid var(--c-primary);color:var(--c-primary);}
.btn-outline:hover{background:rgba(11,31,26,0.06);text-decoration:none;transform:translateY(-2px);}
.btn-white-outline{background:transparent;border:1px solid rgba(255,255,255,0.9);color:rgba(255,255,255,0.95);}
.btn-white-outline:hover{background:rgba(255,255,255,0.1);color:#fff;text-decoration:none;transform:translateY(-2px);}
.btn-sm{padding:8px 16px;font-size:14px;}
/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--c-primary);
  color:rgba(255,255,255,0.95);
  box-shadow:0 2px 20px rgba(0,0,0,0.2);
}
.site-header.scrolled{
  background:rgba(11,31,26,0.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.nav-top{border-bottom:1px solid rgba(255,255,255,0.08);}
.nav-top-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:60px;
  gap:16px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:20px;
  font-weight:800;
  letter-spacing:0.5px;
  flex-shrink:0;
}
.brand:hover{color:var(--c-accent);text-decoration:none;}
.brand-icon{
  width:38px;
  height:38px;
  background:var(--c-accent);
  color:var(--c-primary);
  border-radius:10px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
}
.brand-text em{font-style:normal;color:var(--c-accent);}
.nav-top-actions{display:flex;align-items:center;gap:14px;}
.search-box{
  display:flex;
  align-items:center;
  background:rgba(255,255,255,0.1);
  border:1px solid rgba(255,255,255,0.12);
  border-radius:10px;
  overflow:hidden;
  width:240px;
  transition:border-color 0.2s ease;
}
.search-box:focus-within{border-color:var(--c-aqua);}
.search-box input{
  background:transparent;
  border:0;
  outline:0;
  color:#fff;
  padding:9px 14px;
  width:100%;
  font-size:14px;
}
.search-box input::placeholder{color:rgba(255,255,255,0.5);}
.search-box button{
  background:transparent;
  border:0;
  color:rgba(255,255,255,0.7);
  padding:8px 12px;
  cursor:pointer;
  transition:color 0.2s;
}
.search-box button:hover{color:var(--c-accent);}
.nav-toggle{
  display:none;
  background:transparent;
  border:1px solid rgba(255,255,255,0.2);
  color:#fff;
  width:40px;
  height:40px;
  border-radius:10px;
  cursor:pointer;
  font-size:17px;
  align-items:center;
  justify-content:center;
  transition:var(--transition);
}
.nav-toggle:hover{background:rgba(255,255,255,0.1);}
.nav-channels.scrolled{box-shadow:0 4px 20px rgba(0,0,0,0.15);}
.nav-channels-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:48px;
  gap:20px;
}
.channel-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.nav-link{
  color:rgba(255,255,255,0.85);
  font-size:15px;
  font-weight:500;
  padding:8px 16px;
  border-radius:8px;
  position:relative;
  transition:color 0.2s ease,background 0.2s ease;
}
.nav-link:hover{color:var(--c-accent);background:rgba(255,255,255,0.05);text-decoration:none;}
.nav-link.active{color:var(--c-accent);font-weight:700;}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:0;
  height:2px;
  background:var(--c-accent);
  border-radius:2px;
}
.trend-tags{display:flex;align-items:center;gap:10px;font-size:13px;flex-shrink:0;}
.trend-label{display:inline-flex;align-items:center;gap:4px;color:rgba(255,255,255,0.6);}
.trend-link{color:rgba(255,255,255,0.75);font-size:13px;padding:3px 8px;border-radius:6px;transition:var(--transition);}
.trend-link:hover{color:var(--c-accent);background:rgba(255,255,255,0.05);text-decoration:none;}
/* Page hero */
.page-hero{
  background:var(--c-primary);
  color:#fff;
  padding:80px 0 68px;
  position:relative;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  top:-40%;
  left:-10%;
  width:65%;
  height:100%;
  background:radial-gradient(ellipse at center,rgba(245,184,61,0.16),transparent 65%);
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  bottom:-30%;
  right:-10%;
  width:50%;
  height:100%;
  background:radial-gradient(ellipse at center,rgba(47,168,155,0.15),transparent 65%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,0.55);
  margin-bottom:20px;
}
.breadcrumb a{color:rgba(255,255,255,0.75);}
.breadcrumb a:hover{color:var(--c-accent);}
.breadcrumb .sep{opacity:0.5;}
.page-hero h1{
  font-size:34px;
  font-weight:800;
  line-height:1.3;
  margin-bottom:16px;
  color:#fff;
}
.page-hero h1 span{color:var(--c-accent);}
.page-hero .hero-desc{
  max-width:720px;
  color:rgba(255,255,255,0.75);
  font-size:16px;
  line-height:1.8;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,0.08);
  border:1px solid rgba(255,255,255,0.1);
  padding:8px 18px;
  border-radius:999px;
  font-size:13px;
  color:rgba(255,255,255,0.85);
}
.hero-badge i{color:var(--c-accent);}
/* Feature intro */
.feature-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
}
.feature-media{
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  position:relative;
  aspect-ratio:4 / 3;
}
.feature-media img{width:100%;height:100%;object-fit:cover;}
.feature-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(to top,rgba(11,31,26,0.35),transparent 50%);
}
.feature-media .play-tag{
  position:absolute;
  left:20px;
  bottom:20px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(11,31,26,0.8);
  color:var(--c-accent);
  font-size:13px;
  font-weight:600;
  padding:7px 16px;
  border-radius:999px;
}
.feature-copy h2{
  font-size:26px;
  font-weight:800;
  color:var(--c-primary);
  margin-bottom:18px;
  line-height:1.4;
}
.feature-copy h2 em{font-style:normal;color:var(--c-aqua);}
.feature-copy p{color:var(--c-muted);margin-bottom:16px;}
.feature-points{margin-top:24px;display:grid;gap:12px;}
.feature-point{
  display:flex;
  align-items:flex-start;
  gap:12px;
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:12px;
  padding:14px 18px;
  transition:var(--transition);
}
.feature-point:hover{border-color:var(--c-aqua);box-shadow:var(--shadow);}
.feature-point i{
  color:var(--c-aqua);
  font-size:16px;
  margin-top:4px;
  flex-shrink:0;
}
.feature-point strong{display:block;font-size:15px;color:var(--c-text);margin-bottom:2px;}
.feature-point span{font-size:14px;color:var(--c-muted);}
/* Steps */
.steps-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:36px;
}
.step-card{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--radius);
  padding:32px 28px;
  transition:var(--transition);
  position:relative;
}
.step-card:hover{box-shadow:var(--shadow-hover);border-color:var(--c-accent);transform:translateY(-4px);}
.step-num{
  font-size:36px;
  font-weight:800;
  color:var(--c-border);
  line-height:1;
  position:absolute;
  top:24px;
  right:28px;
  transition:color 0.2s;
}
.step-card:hover .step-num{color:rgba(245,184,61,0.4);}
.step-icon{
  width:52px;
  height:52px;
  background:rgba(47,168,155,0.12);
  color:var(--c-aqua-dark);
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
  margin-bottom:20px;
}
.step-card h3{font-size:18px;font-weight:700;color:var(--c-primary);margin-bottom:10px;}
.step-card p{font-size:14px;color:var(--c-muted);}
/* Subtopic grid */
.subtopic-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:40px;
}
.sub-card{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--radius);
  padding:28px 26px;
  transition:var(--transition);
  display:flex;
  flex-direction:column;
  min-height:220px;
  position:relative;
  overflow:hidden;
}
.sub-card::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:3px;
  background:linear-gradient(90deg,var(--c-accent),var(--c-aqua));
  opacity:0;
  transition:opacity 0.2s;
}
.sub-card:hover{box-shadow:var(--shadow-hover);border-color:var(--c-accent);transform:translateY(-4px);}
.sub-card:hover::before{opacity:1;}
.sub-card-icon{
  width:46px;
  height:46px;
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  margin-bottom:18px;
  flex-shrink:0;
}
.sub-card-icon.i1{background:rgba(245,184,61,0.15);color:#C9941A;}
.sub-card-icon.i2{background:rgba(47,168,155,0.15);color:var(--c-aqua-dark);}
.sub-card-icon.i3{background:rgba(11,31,26,0.08);color:var(--c-primary);}
.sub-card-icon.i4{background:rgba(47,168,155,0.15);color:var(--c-aqua-dark);}
.sub-card-icon.i5{background:rgba(245,184,61,0.15);color:#C9941A;}
.sub-card-icon.i6{background:rgba(11,31,26,0.08);color:var(--c-primary);}
.sub-card h3{font-size:18px;font-weight:700;color:var(--c-primary);margin-bottom:8px;}
.sub-card p{font-size:14px;color:var(--c-muted);margin-bottom:16px;flex:1;}
.sub-link{
  font-size:14px;
  font-weight:600;
  color:var(--c-aqua);
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:gap 0.2s;
}
.sub-link:hover{gap:10px;text-decoration:none;color:var(--c-aqua-dark);}
/* Featured cards */
.featured-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:40px;
}
.feat-card{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--radius);
  overflow:hidden;
  transition:var(--transition);
  position:relative;
}
.feat-card:hover{box-shadow:var(--shadow-hover);border-color:var(--c-accent);transform:translateY(-4px);}
.feat-thumb{
  aspect-ratio:16 / 9;
  overflow:hidden;
  position:relative;
}
.feat-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s ease;}
.feat-card:hover .feat-thumb img{transform:scale(1.03);}
.feat-tag{
  position:absolute;
  top:14px;
  left:14px;
  background:rgba(11,31,26,0.8);
  color:var(--c-accent);
  font-size:12px;
  font-weight:600;
  padding:4px 12px;
  border-radius:999px;
  z-index:2;
}
.feat-body{padding:20px 22px 24px;}
.feat-body h3{font-size:17px;font-weight:700;color:var(--c-primary);line-height:1.5;margin-bottom:10px;}
.feat-body p{font-size:14px;color:var(--c-muted);margin-bottom:16px;}
.feat-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--c-muted);
}
.feat-meta .duration{display:inline-flex;align-items:center;gap:6px;}
.feat-meta .arrow{color:var(--c-aqua);font-size:14px;}
/* FAQ */
.faq-wrap{
  max-width:860px;
  margin:0 auto;
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:20px;
  overflow:hidden;
  box-shadow:var(--shadow);
}
.faq-item{border-bottom:1px solid var(--c-border);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;
  background:transparent;
  border:0;
  text-align:left;
  padding:20px 24px;
  font-size:16px;
  font-weight:700;
  color:var(--c-text);
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  transition:background 0.2s;
}
.faq-q:hover{background:rgba(47,168,155,0.04);}
.faq-q .icon{
  width:26px;
  height:26px;
  border-radius:50%;
  border:1px solid var(--c-border);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  color:var(--c-aqua);
  flex-shrink:0;
  transition:transform 0.3s ease,background 0.3s;
}
.faq-item.open .faq-q .icon{
  transform:rotate(45deg);
  background:var(--c-aqua);
  color:#fff;
  border-color:var(--c-aqua);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 0.3s ease;
}
.faq-a-inner{
  padding:0 24px 22px;
  color:var(--c-muted);
  font-size:15px;
  line-height:1.75;
}
.faq-a-inner ul{padding-left:18px;list-style:disc;margin-top:8px;}
.faq-a-inner ul li{margin-bottom:6px;}
/* CTA */
.cta-banner{
  background:var(--c-primary);
  border-radius:24px;
  padding:56px 60px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  position:relative;
  overflow:hidden;
}
.cta-banner::before{
  content:"";
  position:absolute;
  top:-50%;
  right:-10%;
  width:40%;
  height:200%;
  background:radial-gradient(ellipse at center,rgba(245,184,61,0.18),transparent 65%);
}
.cta-banner h2{
  color:#fff;
  font-size:26px;
  font-weight:800;
  line-height:1.4;
  margin-bottom:10px;
}
.cta-banner h2 span{color:var(--c-accent);}
.cta-banner p{color:rgba(255,255,255,0.7);font-size:15px;}
.cta-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;position:relative;z-index:2;}
/* Footer */
.site-footer{
  background:var(--c-primary);
  color:rgba(255,255,255,0.8);
  padding-top:64px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:20px;
  font-weight:800;
  color:#fff;
  margin-bottom:16px;
}
.footer-brand .brand-icon{
  width:36px;
  height:36px;
  background:var(--c-accent);
  color:var(--c-primary);
  border-radius:10px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
}
.footer-brand span{color:#fff;}
.footer-desc{
  font-size:14px;
  color:rgba(255,255,255,0.6);
  line-height:1.8;
  margin-bottom:20px;
}
.footer-social{display:flex;gap:12px;}
.footer-social a{
  width:38px;
  height:38px;
  background:rgba(255,255,255,0.08);
  border-radius:10px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:rgba(255,255,255,0.7);
  font-size:15px;
  transition:var(--transition);
}
.footer-social a:hover{background:var(--c-accent);color:var(--c-primary);text-decoration:none;transform:translateY(-2px);}
.footer-title{
  color:#fff;
  font-size:16px;
  font-weight:700;
  margin-bottom:18px;
}
.footer-links li{margin-bottom:10px;}
.footer-links a{
  color:rgba(255,255,255,0.65);
  font-size:14px;
  transition:color 0.2s;
}
.footer-links a:hover{color:var(--c-accent);text-decoration:none;}
.footer-contact p{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:rgba(255,255,255,0.65);
  margin-bottom:10px;
}
.footer-contact i{color:var(--c-aqua);}
.footer-newsletter{
  display:flex;
  gap:8px;
  margin-top:16px;
}
.footer-newsletter input{
  flex:1;
  background:rgba(255,255,255,0.08);
  border:1px solid rgba(255,255,255,0.12);
  border-radius:10px;
  padding:10px 14px;
  color:#fff;
  font-size:14px;
  outline:0;
  transition:border-color 0.2s;
}
.footer-newsletter input::placeholder{color:rgba(255,255,255,0.4);}
.footer-newsletter input:focus{border-color:var(--c-aqua);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.1);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:rgba(255,255,255,0.5);
}
.footer-bottom a{color:rgba(255,255,255,0.5);}
.footer-bottom a:hover{color:var(--c-accent);}
/* Responsive */
@media (max-width:1200px){
  .container{padding-left:20px;padding-right:20px;}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr;}
}
@media (max-width:1024px){
  .section{padding:60px 0;}
  .feature-grid{gap:40px;}
  .steps-grid{grid-template-columns:repeat(3,1fr);gap:16px;}
  .subtopic-grid{grid-template-columns:repeat(2,1fr);}
  .featured-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:991px){
  .nav-channels-inner{flex-direction:column;align-items:flex-start;padding:12px 0;}
  .trend-tags{margin-top:6px;}
}
@media (max-width:767px){
  .nav-top-inner{min-height:56px;}
  .search-box{width:160px;}
  .nav-toggle{display:flex;}
  .nav-channels{
    display:none;
    position:absolute;
    left:0;
    right:0;
    top:60px;
    background:var(--c-primary);
    padding:16px;
    box-shadow:0 8px 20px rgba(0,0,0,0.2);
    max-height:calc(100vh - 60px);
    overflow-y:auto;
  }
  .nav-channels.open{display:block;}
  .nav-channels-inner{flex-direction:column;align-items:stretch;padding:0;}
  .channel-nav{flex-direction:column;align-items:stretch;gap:2px;}
  .nav-link{padding:12px 16px;border-radius:10px;}
  .nav-link.active::after{display:none;}
  .nav-link.active{background:rgba(245,184,61,0.1);}
  .trend-tags{margin-top:14px;padding-top:14px;border-top:1px solid rgba(255,255,255,0.08);flex-wrap:wrap;}
  .page-hero{padding:52px 0 44px;}
  .page-hero h1{font-size:28px;}
  .hero-desc{font-size:15px;}
  .feature-grid{grid-template-columns:1fr;gap:32px;}
  .feature-media{aspect-ratio:16/10;}
  .steps-grid{grid-template-columns:1fr 1fr;gap:14px;}
  .step-card{padding:24px 20px;}
  .subtopic-grid{grid-template-columns:1fr;}
  .featured-grid{grid-template-columns:1fr;}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  .cta-actions{flex-wrap:wrap;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;text-align:center;}
}
@media (max-width:520px){
  .search-box{display:none;}
  .nav-top-actions{gap:8px;}
  .steps-grid{grid-template-columns:1fr;}
  .footer-newsletter{flex-direction:column;}
}

/* roulang page: category3 */
*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --c-primary: #0B1F1A;
            --c-primary-light: #12332A;
            --c-accent: #F5B83D;
            --c-accent-hover: #FFC75F;
            --c-aqua: #2FA89B;
            --c-bg: #F7F5F0;
            --c-surface: #FFFFFF;
            --c-text: #1E2B26;
            --c-muted: #5E6F68;
            --c-border: #E6E0D6;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 2px 12px rgba(11, 31, 26, 0.06);
            --shadow-hover: 0 8px 28px rgba(11, 31, 26, 0.12);
            --font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            --container: 1200px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background: var(--c-bg);
            color: var(--c-text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }
        a {
            color: var(--c-aqua);
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: #1D7F75;
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        ul,
        ol {
            list-style: none;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: 1px solid #D8D2C6;
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            background: #fff;
            transition: border-color .2s, box-shadow .2s;
            outline: none;
        }
        input:focus {
            border-color: var(--c-aqua);
            box-shadow: 0 0 0 4px rgba(47, 168, 155, 0.2);
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--c-primary);
            color: rgba(255, 255, 255, 0.95);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.18);
            transition: background .3s ease, box-shadow .3s ease;
        }
        .site-header.scrolled {
            background: rgba(11, 31, 26, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }
        .nav-top {
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .nav-top-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            padding-bottom: 12px;
            gap: 16px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: #fff;
            font-weight: 800;
            font-size: 22px;
            letter-spacing: .5px;
            flex-shrink: 0;
        }
        .brand:hover {
            color: #fff;
            text-decoration: none;
        }
        .brand-icon {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--c-accent), #E8A020);
            color: var(--c-primary);
            border-radius: 10px;
            font-size: 17px;
        }
        .brand-text {
            font-size: 21px;
        }
        .brand-text em {
            font-style: normal;
            color: var(--c-accent);
        }
        .nav-top-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 999px;
            padding: 0 12px;
            border: 1px solid rgba(255, 255, 255, 0.16);
            transition: background .2s, border-color .2s;
        }
        .search-box input {
            background: transparent;
            border: none;
            box-shadow: none;
            color: #fff;
            padding: 8px 8px 8px 4px;
            width: 180px;
            font-size: 14px;
            border-radius: 0;
            outline: none;
        }
        .search-box input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }
        .search-box button {
            background: none;
            border: none;
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
            padding: 6px;
            transition: color .2s;
        }
        .search-box button:hover {
            color: var(--c-accent);
        }
        .search-box:focus-within {
            border-color: var(--c-aqua);
            background: rgba(255, 255, 255, 0.16);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 700;
            border-radius: var(--radius-sm);
            transition: background .2s, transform .2s, box-shadow .2s, color .2s;
            padding: 12px 24px;
            font-size: 15px;
            line-height: 1;
            text-decoration: none;
            outline: none;
        }
        .btn:hover {
            text-decoration: none;
        }
        .btn-accent {
            background: var(--c-accent);
            color: var(--c-primary);
        }
        .btn-accent:hover {
            background: var(--c-accent-hover);
            color: var(--c-primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 184, 61, 0.35);
        }
        .btn-sm {
            padding: 9px 18px;
            font-size: 14px;
        }
        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.9);
            color: rgba(255, 255, 255, 0.9);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border-color: #fff;
        }
        .btn-outline-dark {
            background: transparent;
            border: 1px solid var(--c-primary);
            color: var(--c-primary);
        }
        .btn-outline-dark:hover {
            background: rgba(11, 31, 26, 0.06);
            color: var(--c-primary);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 18px;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
        }
        .nav-channels {
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .nav-channels-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 8px;
            padding-bottom: 8px;
        }
        .channel-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .channel-nav::-webkit-scrollbar {
            display: none;
        }
        .nav-link {
            display: inline-block;
            padding: 10px 16px;
            border-radius: 8px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            font-weight: 500;
            text-decoration: none;
            transition: background .2s, color .2s;
            white-space: nowrap;
            border-bottom: 2px solid transparent;
        }
        .nav-link:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            text-decoration: none;
        }
        .nav-link.active {
            color: var(--c-accent);
            border-bottom-color: var(--c-accent);
            background: rgba(245, 184, 61, 0.08);
        }
        .trend-tags {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            white-space: nowrap;
        }
        .trend-label {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 600;
        }
        .trend-link {
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
            font-size: 13px;
            transition: color .2s;
        }
        .trend-link:hover {
            color: var(--c-accent);
        }
        .page-hero {
            position: relative;
            background: var(--c-primary);
            color: #fff;
            padding: 72px 0 60px;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: .4;
            z-index: 0;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, rgba(11, 31, 26, 0.96) 0%, rgba(11, 31, 26, 0.78) 60%, rgba(11, 31, 26, 0.6) 100%);
            z-index: 0;
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(47, 168, 155, 0.2);
            border: 1px solid var(--c-aqua);
            color: var(--c-aqua);
            font-size: 14px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 18px;
        }
        .page-hero h1 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            max-width: 700px;
            letter-spacing: .5px;
        }
        .page-hero h1 span {
            color: var(--c-accent);
        }
        .page-hero .hero-sub {
            font-size: 16px;
            line-height: 1.8;
            max-width: 620px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-meta {
            display: flex;
            gap: 24px;
            margin-top: 32px;
            flex-wrap: wrap;
        }
        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
        }
        .hero-meta-item i {
            color: var(--c-accent);
            font-size: 18px;
        }
        .section {
            padding: 64px 0;
        }
        .section-alt {
            background: var(--c-surface);
        }
        .section-head {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-head .eyebrow {
            display: inline-block;
            background: rgba(47, 168, 155, 0.1);
            color: var(--c-aqua);
            font-weight: 600;
            font-size: 13px;
            padding: 5px 16px;
            border-radius: 999px;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }
        .section-head h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 10px;
            color: var(--c-primary);
        }
        .section-head h2 span {
            color: var(--c-accent);
        }
        .section-head p {
            color: var(--c-muted);
            max-width: 640px;
            margin: 0 auto;
            font-size: 15px;
        }
        .intro-table {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .intro-media {
            border-radius: var(--radius);
            overflow: hidden;
            position: relative;
            background: #E8E3D8;
            box-shadow: var(--shadow);
        }
        .intro-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 280px;
            transition: transform .4s ease;
        }
        .intro-media:hover img {
            transform: scale(1.02);
        }
        .intro-media .media-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(11, 31, 26, 0.75);
            color: var(--c-accent);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            backdrop-filter: blur(6px);
        }
        .intro-content h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--c-primary);
            margin-bottom: 14px;
            line-height: 1.4;
        }
        .intro-content p {
            color: var(--c-muted);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 22px;
        }
        .intro-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .intro-feature-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            background: var(--c-bg);
            border: 1px solid var(--c-border);
            border-radius: 12px;
            padding: 12px 14px;
            transition: border-color .2s, box-shadow .2s;
            font-size: 14px;
            font-weight: 500;
            color: var(--c-text);
        }
        .intro-feature-item:hover {
            border-color: var(--c-aqua);
            box-shadow: 0 4px 16px rgba(47, 168, 155, 0.12);
        }
        .intro-feature-item i {
            color: var(--c-aqua);
            font-size: 16px;
            margin-top: 3px;
            width: 20px;
            flex-shrink: 0;
        }
        .sub-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .sub-card {
            background: var(--c-surface);
            border: 1px solid var(--c-border);
            border-radius: var(--radius);
            padding: 28px 24px;
            box-shadow: var(--shadow);
            transition: transform .25s, box-shadow .25s, border-color .25s;
            position: relative;
            overflow: hidden;
        }
        .sub-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--c-aqua), transparent);
            opacity: 0;
            transition: opacity .25s;
        }
        .sub-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--c-accent);
        }
        .sub-card:hover::before {
            opacity: 1;
        }
        .sub-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
            color: var(--c-aqua);
            background: rgba(47, 168, 155, 0.12);
            transition: background .2s, transform .2s, color .2s;
        }
        .sub-card:hover .card-icon {
            background: var(--c-accent);
            color: var(--c-primary);
            transform: scale(1.05);
        }
        .sub-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--c-primary);
            margin-bottom: 8px;
        }
        .sub-card p {
            color: var(--c-muted);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .sub-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-aqua);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            text-decoration: none;
        }
        .sub-card .card-link:hover {
            color: #1D7F75;
        }
        .sub-card .card-link i {
            font-size: 12px;
            transition: transform .2s;
        }
        .sub-card .card-link:hover i {
            transform: translateX(3px);
        }
        .value-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .value-card {
            background: var(--c-primary);
            border-radius: var(--radius);
            padding: 32px 28px;
            color: #fff;
            position: relative;
            overflow: hidden;
            transition: transform .25s, box-shadow .25s;
        }
        .value-card::after {
            content: '';
            position: absolute;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(245, 184, 61, 0.12);
            top: -30px;
            right: -30px;
        }
        .value-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 14px 36px rgba(11, 31, 26, 0.22);
        }
        .value-card i {
            font-size: 28px;
            color: var(--c-accent);
            margin-bottom: 18px;
            display: inline-block;
        }
        .value-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: #fff;
        }
        .value-card p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            line-height: 1.75;
        }
        .steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-item {
            background: var(--c-surface);
            border: 1px solid var(--c-border);
            border-radius: var(--radius);
            padding: 30px 24px;
            text-align: center;
            position: relative;
            box-shadow: var(--shadow);
            transition: transform .25s, box-shadow .25s, border-color .25s;
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--c-accent);
        }
        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--c-primary);
            color: var(--c-accent);
            font-weight: 800;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }
        .step-item h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--c-primary);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 13px;
            color: var(--c-muted);
            line-height: 1.7;
        }
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
            background: var(--c-surface);
            border: 1px solid var(--c-border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        .faq-item {
            border-bottom: 1px solid var(--c-border);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            background: transparent;
            font-size: 16px;
            font-weight: 700;
            color: var(--c-text);
            text-align: left;
            transition: background .2s, color .2s;
        }
        .faq-question:hover {
            background: var(--c-bg);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(47, 168, 155, 0.12);
            color: var(--c-aqua);
            font-size: 13px;
            transition: transform .3s, background .2s, color .2s;
        }
        .faq-item.active .faq-question {
            color: var(--c-aqua);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--c-accent);
            color: var(--c-primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .3s;
            padding: 0 24px;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--c-muted);
            line-height: 1.85;
        }
        .cta-section {
            background: var(--c-primary);
            color: #fff;
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: .2;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 85% 30%, rgba(245, 184, 61, 0.18), transparent 45%);
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-inner .cta-text h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .cta-inner .cta-text h2 span {
            color: var(--c-accent);
        }
        .cta-inner .cta-text p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }
        .site-footer {
            background: var(--c-primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 64px 0 0;
            border-top: 3px solid var(--c-accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand .brand-icon {
            background: var(--c-accent);
            color: var(--c-primary);
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 20px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.85);
            border-radius: 10px;
            font-size: 15px;
            transition: background .2s, color .2s, transform .2s;
            text-decoration: none;
        }
        .footer-social a:hover {
            background: var(--c-accent);
            color: var(--c-primary);
            transform: translateY(-3px);
        }
        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-links {
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            text-decoration: none;
            transition: color .2s, padding-left .2s;
        }
        .footer-links a:hover {
            color: var(--c-accent);
            padding-left: 4px;
        }
        .footer-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-contact p i {
            color: var(--c-aqua);
            width: 16px;
        }
        .footer-newsletter {
            display: flex;
            gap: 8px;
            margin-top: 16px;
        }
        .footer-newsletter input {
            flex: 1;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #fff;
            padding: 10px 14px;
            font-size: 13px;
            border-radius: 8px;
            outline: none;
        }
        .footer-newsletter input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-newsletter input:focus {
            border-color: var(--c-aqua);
            box-shadow: 0 0 0 3px rgba(47, 168, 155, 0.2);
        }
        .footer-newsletter .btn {
            padding: 10px 18px;
            font-size: 14px;
            flex-shrink: 0;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: var(--c-accent);
        }
        .back-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--c-aqua);
            text-decoration: none;
            margin-top: 36px;
        }
        .back-home:hover {
            text-decoration: underline;
        }
        .empty-state {
            text-align: center;
            padding: 48px 24px;
            border: 2px dashed var(--c-border);
            border-radius: var(--radius);
            background: #FAFAF7;
        }
        .empty-state i {
            font-size: 40px;
            color: var(--c-border);
            margin-bottom: 12px;
        }
        .empty-state p {
            color: var(--c-muted);
            font-size: 15px;
        }
        @media (max-width: 1199px) {
            .sub-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .search-box input {
                width: 140px;
            }
        }
        @media (max-width: 991px) {
            .container {
                padding: 0 20px;
            }
            .section {
                padding: 56px 0;
            }
            .search-box {
                display: none;
            }
            .intro-table {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .sub-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .value-cards {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .channel-nav {
                overflow-x: auto;
            }
            .trend-tags {
                display: none;
            }
        }
        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-top-inner {
                padding-top: 10px;
                padding-bottom: 10px;
            }
            .nav-top-actions .btn {
                display: none;
            }
            .nav-channels {
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--c-primary);
                box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                max-height: 0;
                overflow: hidden;
                transition: max-height .35s ease;
            }
            .nav-channels.open {
                max-height: 320px;
                overflow-y: auto;
            }
            .nav-channels-inner {
                flex-direction: column;
                align-items: flex-start;
                padding: 12px 16px;
                gap: 6px;
            }
            .channel-nav {
                flex-direction: column;
                align-items: stretch;
                width: 100%;
            }
            .nav-link {
                padding: 12px 8px;
                border-radius: 8px;
                border-bottom: none;
                width: 100%;
                text-align: left;
            }
            .nav-link.active {
                background: rgba(245, 184, 61, 0.1);
                border-bottom: none;
            }
            .page-hero {
                padding: 48px 0 40px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero .hero-sub {
                font-size: 15px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .sub-grid,
            .value-cards,
            .steps {
                grid-template-columns: 1fr;
            }
            .intro-features {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .intro-feature-item {
                font-size: 13px;
                padding: 10px 12px;
            }
            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }
            .cta-inner .cta-text h2 {
                font-size: 22px;
            }
            .cta-actions {
                width: 100%;
            }
            .cta-actions .btn {
                flex: 1;
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .section-head h2 {
                font-size: 22px;
            }
            .section-head p {
                font-size: 14px;
            }
        }
        @media (max-width: 480px) {
            .brand-text {
                font-size: 18px;
            }
            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
            .intro-features {
                grid-template-columns: 1fr;
            }
            .footer-newsletter {
                flex-direction: column;
            }
            .footer-newsletter .btn {
                width: 100%;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            * {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
            }
        }
        .focus-visible,
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(245, 184, 61, 0.5);
            outline-offset: 2px;
        }