/* roulang page: index */
:root{
    --primary:#00e5ff;
    --primary-glow:rgba(0,229,255,0.35);
    --secondary:#ff2d55;
    --secondary-glow:rgba(255,45,85,0.35);
    --dark:#080c18;
    --dark-2:#0f1626;
    --dark-3:#162031;
    --light:#f2f6fc;
    --text:#e8eff8;
    --muted:#8a95ab;
    --border:rgba(255,255,255,0.08);
    --radius:16px;
    --radius-lg:24px;
    --radius-sm:10px;
    --shadow:0 12px 40px rgba(0,0,0,0.45);
    --shadow-soft:0 4px 20px rgba(0,0,0,0.25);
    --space-xs:8px;
    --space-sm:16px;
    --space-md:32px;
    --space-lg:64px;
    --space-xl:96px;
    --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,sans-serif;
    background:var(--dark);
    color:var(--text);
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:all .3s var(--ease)}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea{font-family:inherit}
ul,ol{list-style:none}
.grid-container{max-width:1280px;margin:0 auto;padding:0 24px}
.section-pad{padding:80px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 56px}
.section-eyebrow{
    display:inline-block;
    color:var(--primary);
    font-size:13px;
    font-weight:700;
    letter-spacing:2px;
    text-transform:uppercase;
    padding:6px 18px;
    border:1px solid rgba(0,229,255,.25);
    border-radius:40px;
    background:rgba(0,229,255,.06);
    margin-bottom:16px;
}
.section-title{
    font-size:clamp(30px,4vw,44px);
    font-weight:800;
    line-height:1.3;
    color:var(--text);
    letter-spacing:-0.5px;
}
.section-sub{
    color:var(--muted);
    font-size:17px;
    margin-top:14px;
}
.divider{
    width:52px;height:4px;
    background:linear-gradient(90deg,var(--primary),var(--secondary));
    border-radius:4px;
    margin:18px auto 0;
}
/* ===== Header ===== */
.site-header{
    position:fixed;
    top:0;left:0;right:0;
    z-index:1000;
    background:rgba(8,12,24,.9);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-bottom:1px solid var(--border);
    transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.scrolled{
    background:rgba(8,12,24,.97);
    box-shadow:0 8px 32px rgba(0,0,0,.4);
}
.nav-main{
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:76px;
    position:relative;
}
.nav-links{
    display:flex;
    align-items:center;
    gap:6px;
    flex:1;
}
.nav-links.left-links{justify-content:flex-start}
.nav-links.right-links{justify-content:flex-end}
.nav-links a{
    display:inline-flex;
    align-items:center;
    gap:7px;
    padding:8px 16px;
    font-size:15px;
    font-weight:600;
    color:var(--muted);
    border-radius:40px;
    transition:all .3s var(--ease);
    position:relative;
}
.nav-links a i{font-size:13px;opacity:.7}
.nav-links a:hover{
    color:var(--text);
    background:rgba(255,255,255,.05);
}
.nav-links a.active{
    color:var(--primary);
    background:rgba(0,229,255,.08);
    box-shadow:inset 0 0 0 1px rgba(0,229,255,.2);
}
.nav-logo{
    display:flex;
    align-items:center;
    justify-content:center;
    flex-shrink:0;
    margin:0 12px;
}
.logo-text{
    font-family:"Noto Serif SC","Songti SC",serif;
    font-size:24px;
    font-weight:900;
    letter-spacing:1px;
    color:var(--text);
    background:linear-gradient(135deg,var(--primary),#7ce7ff,var(--secondary));
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
    white-space:nowrap;
}
.nav-toggle{
    display:none;
    width:42px;height:42px;
    border-radius:10px;
    border:1px solid var(--border);
    background:rgba(255,255,255,.04);
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:5px;
    transition:border-color .3s;
}
.nav-toggle:hover{border-color:rgba(0,229,255,.4)}
.nav-toggle span{
    width:18px;height:2px;
    background:var(--text);
    border-radius:2px;
    transition:transform .3s var(--ease),opacity .3s;
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
/* ===== Hero ===== */
.hero{
    position:relative;
    min-height:100vh;
    display:flex;
    align-items:center;
    overflow:hidden;
    padding:140px 0 80px;
}
.hero-bg{
    position:absolute;
    inset:0;
    background-size:cover;
    background-position:center;
    z-index:0;
    animation:heroZoom 18s ease-in-out infinite alternate;
}
@keyframes heroZoom{
    0%{transform:scale(1)}
    100%{transform:scale(1.08)}
}
.hero-overlay{
    position:absolute;
    inset:0;
    background:linear-gradient(135deg,rgba(8,12,24,.93) 0%,rgba(8,12,24,.7) 50%,rgba(8,12,24,.94) 100%);
    z-index:1;
}
.hero-glow{
    position:absolute;
    width:500px;height:500px;
    border-radius:50%;
    background:var(--primary-glow);
    filter:blur(140px);
    z-index:1;
    top:-100px;right:-100px;
    opacity:.25;
    animation:glowPulse 6s ease-in-out infinite;
}
.hero-glow-2{
    position:absolute;
    width:400px;height:400px;
    border-radius:50%;
    background:var(--secondary-glow);
    filter:blur(140px);
    z-index:1;
    bottom:-80px;left:-80px;
    opacity:.2;
    animation:glowPulse 8s ease-in-out infinite reverse;
}
@keyframes glowPulse{
    0%,100%{opacity:.15;transform:scale(1)}
    50%{opacity:.35;transform:scale(1.15)}
}
.hero-content{
    position:relative;
    z-index:2;
    max-width:860px;
}
.hero-badge{
    display:inline-flex;
    align-items:center;
    gap:10px;
    padding:8px 22px;
    border-radius:50px;
    background:rgba(255,255,255,.06);
    border:1px solid rgba(0,229,255,.3);
    font-size:14px;
    font-weight:600;
    color:var(--primary);
    margin-bottom:28px;
    animation:fadeUp .8s var(--ease) both;
}
.hero-badge::before{
    content:"";
    width:8px;height:8px;
    border-radius:50%;
    background:var(--secondary);
    box-shadow:0 0 12px var(--secondary);
    animation:dotPulse 1.6s ease-in-out infinite;
}
@keyframes dotPulse{
    0%,100%{opacity:1;transform:scale(1)}
    50%{opacity:.5;transform:scale(.7)}
}
.hero h1{
    font-family:"Noto Serif SC","Songti SC",serif;
    font-size:clamp(42px,6.5vw,70px);
    font-weight:900;
    line-height:1.15;
    letter-spacing:-1px;
    margin-bottom:20px;
    animation:fadeUp .8s var(--ease) .1s both;
}
.hero h1 .gradient-text{
    background:linear-gradient(135deg,var(--primary) 0%,#7ce7ff 50%,var(--secondary) 100%);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
}
.hero-desc{
    font-size:clamp(16px,1.6vw,20px);
    color:var(--muted);
    max-width:640px;
    margin-bottom:36px;
    line-height:1.8;
    animation:fadeUp .8s var(--ease) .2s both;
}
.hero-buttons{
    display:flex;
    gap:16px;
    flex-wrap:wrap;
    animation:fadeUp .8s var(--ease) .3s both;
}
.btn{
    display:inline-flex;
    align-items:center;
    gap:10px;
    padding:14px 30px;
    border-radius:50px;
    font-size:15px;
    font-weight:700;
    letter-spacing:.3px;
    transition:all .35s var(--ease);
    position:relative;
    overflow:hidden;
}
.btn-primary{
    background:linear-gradient(135deg,var(--primary),#2bb8d6);
    color:#0a0e1a;
    box-shadow:0 4px 24px var(--primary-glow);
}
.btn-primary:hover{
    transform:translateY(-3px);
    box-shadow:0 8px 40px var(--primary-glow);
}
.btn-primary:hover i,.btn-primary:hover strong{transform:translateX(3px)}
.btn-primary i,.btn-primary strong{transition:transform .3s var(--ease)}
.btn-secondary{
    background:rgba(255,255,255,.06);
    color:var(--text);
    border:1px solid rgba(255,255,255,.16);
    backdrop-filter:blur(8px);
}
.btn-secondary:hover{
    background:rgba(255,255,255,.12);
    border-color:rgba(0,229,255,.4);
    transform:translateY(-3px);
    color:var(--primary);
}
.btn-outline{
    background:transparent;
    color:var(--primary);
    border:1px solid rgba(0,229,255,.4);
}
.btn-outline:hover{
    background:rgba(0,229,255,.1);
    transform:translateY(-3px);
    box-shadow:0 8px 30px rgba(0,229,255,.15);
}
.btn-white{
    background:#fff;
    color:#0a0e1a;
}
.btn-white:hover{transform:translateY(-3px);box-shadow:0 8px 30px rgba(255,255,255,.2)}
@keyframes fadeUp{
    from{opacity:0;transform:translateY(28px)}
    to{opacity:1;transform:translateY(0)}
}
.hero-scroll{
    position:absolute;
    bottom:32px;
    left:50%;
    transform:translateX(-50%);
    z-index:2;
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:8px;
    color:var(--muted);
    font-size:12px;
    letter-spacing:1px;
}
.hero-scroll i{
    animation:bounceDown 2s ease-in-out infinite;
}
@keyframes bounceDown{
    0%,100%{transform:translateY(0)}
    50%{transform:translateY(6px)}
}
/* ===== Stats ===== */
.stats-section{
    background:var(--dark-2);
    border-top:1px solid var(--border);
    border-bottom:1px solid var(--border);
    padding:60px 0;
    position:relative;
    overflow:hidden;
}
.stats-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:32px;
}
.stat-item{
    text-align:center;
    padding:20px;
    position:relative;
}
.stat-item::after{
    content:"";
    position:absolute;
    right:-16px;
    top:50%;
    transform:translateY(-50%);
    width:1px;
    height:56px;
    background:var(--border);
}
.stat-item:last-child::after{display:none}
.stat-num{
    font-size:clamp(40px,4vw,56px);
    font-weight:800;
    line-height:1;
    background:linear-gradient(135deg,var(--primary),var(--secondary));
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
    margin-bottom:8px;
}
.stat-label{
    color:var(--muted);
    font-size:15px;
    font-weight:500;
}
/* ===== Categories ===== */
.categories-section{
    padding:100px 0;
    background:var(--dark);
    position:relative;
}
.cat-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:28px;
}
.cat-card{
    position:relative;
    border-radius:var(--radius-lg);
    overflow:hidden;
    background:var(--dark-2);
    border:1px solid var(--border);
    transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s;
    padding:0;
    display:block;
}
.cat-card:hover{
    transform:translateY(-8px);
    box-shadow:var(--shadow);
    border-color:rgba(0,229,255,.3);
}
.cat-card-img{
    position:relative;
    height:220px;
    overflow:hidden;
}
.cat-card-img img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform .5s var(--ease);
}
.cat-card:hover .cat-card-img img{transform:scale(1.08)}
.cat-card-img::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(to top,rgba(8,12,24,.9),transparent 70%);
}
.cat-card-tag{
    position:absolute;
    top:16px;
    left:16px;
    z-index:2;
    padding:5px 14px;
    border-radius:30px;
    font-size:12px;
    font-weight:700;
    background:rgba(0,229,255,.9);
    color:#0a0e1a;
    letter-spacing:.5px;
}
.cat-card-tag.hot{
    background:rgba(255,45,85,.9);
    color:#fff;
}
.cat-card-body{
    padding:24px 24px 28px;
}
.cat-card-body h3{
    font-size:22px;
    font-weight:700;
    margin-bottom:10px;
    color:var(--text);
}
.cat-card-body p{
    color:var(--muted);
    font-size:15px;
    line-height:1.7;
    margin-bottom:18px;
}
.cat-card-link{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:14px;
    font-weight:700;
    color:var(--primary);
    transition:gap .3s var(--ease);
}
.cat-card-link i{font-size:12px;transition:transform .3s}
.cat-card:hover .cat-card-link{gap:12px}
.cat-card:hover .cat-card-link i{transform:translateX(3px)}
/* ===== News Feed ===== */
.news-section{
    padding:100px 0;
    background:var(--dark-2);
    border-top:1px solid var(--border);
}
.news-grid{
    display:grid;
    grid-template-columns:2fr 1fr;
    gap:40px;
}
.news-list{
    display:flex;
    flex-direction:column;
    gap:20px;
}
.news-card{
    background:var(--dark-3);
    border-radius:var(--radius);
    border:1px solid var(--border);
    padding:24px 28px;
    transition:background .35s,transform .35s,border-color .35s,box-shadow .35s;
    position:relative;
    overflow:hidden;
}
.news-card::before{
    content:"";
    position:absolute;
    left:0;top:0;bottom:0;
    width:3px;
    background:linear-gradient(180deg,var(--primary),var(--secondary));
    opacity:0;
    transition:opacity .35s;
}
.news-card:hover{
    background:var(--dark-2);
    transform:translateX(4px);
    border-color:rgba(0,229,255,.25);
    box-shadow:var(--shadow-soft);
}
.news-card:hover::before{opacity:1}
.news-card-top{
    display:flex;
    align-items:center;
    gap:12px;
    margin-bottom:12px;
    flex-wrap:wrap;
}
.news-cat{
    padding:4px 14px;
    border-radius:30px;
    font-size:12px;
    font-weight:600;
    background:rgba(0,229,255,.1);
    color:var(--primary);
    border:1px solid rgba(0,229,255,.2);
}
.news-date{
    font-size:13px;
    color:var(--muted);
    display:flex;
    align-items:center;
    gap:6px;
}
.news-date i{font-size:12px}
.news-card h3{
    font-size:19px;
    font-weight:700;
    line-height:1.5;
    margin-bottom:8px;
    color:var(--text);
    transition:color .3s;
}
.news-card:hover h3{color:var(--primary)}
.news-desc{
    color:var(--muted);
    font-size:14px;
    line-height:1.7;
    margin-bottom:14px;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
}
.news-meta{
    display:flex;
    align-items:center;
    justify-content:space-between;
}
.news-read{
    font-size:13px;
    font-weight:700;
    color:var(--primary);
    display:inline-flex;
    align-items:center;
    gap:6px;
}
.news-read i{font-size:11px;transition:transform .3s}
.news-card:hover .news-read i{transform:translateX(3px)}
.news-sidebar{
    display:flex;
    flex-direction:column;
    gap:28px;
}
.sidebar-card{
    background:var(--dark-3);
    border-radius:var(--radius);
    border:1px solid var(--border);
    padding:28px;
}
.sidebar-card h3{
    font-size:17px;
    font-weight:700;
    margin-bottom:20px;
    display:flex;
    align-items:center;
    gap:10px;
}
.sidebar-card h3 i{color:var(--primary)}
.news-sidebar-hr{border:0;border-top:1px solid var(--border);margin:16px 0}
.tag-cloud{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
}
.tag-item{
    display:inline-block;
    padding:5px 14px;
    border-radius:30px;
    font-size:13px;
    color:var(--muted);
    background:rgba(255,255,255,.04);
    border:1px solid var(--border);
    transition:all .3s var(--ease);
}
.tag-item:hover{
    color:var(--primary);
    border-color:rgba(0,229,255,.4);
    background:rgba(0,229,255,.06);
}
.rank-list{
    display:flex;
    flex-direction:column;
    gap:2px;
}
.rank-item{
    display:flex;
    align-items:center;
    gap:12px;
    padding:10px 0;
    border-bottom:1px solid rgba(255,255,255,.04);
    transition:background .2s;
}
.rank-item:last-child{border-bottom:none}
.rank-item:hover{background:rgba(255,255,255,.02)}
.rank-num{
    width:28px;height:28px;
    display:flex;
    align-items:center;
    justify-content:center;
    border-radius:8px;
    font-size:12px;
    font-weight:700;
    background:rgba(255,255,255,.06);
    color:var(--muted);
    flex-shrink:0;
}
.rank-item:nth-child(1) .rank-num{background:rgba(255,45,85,.15);color:var(--secondary)}
.rank-item:nth-child(2) .rank-num{background:rgba(0,229,255,.15);color:var(--primary)}
.rank-item:nth-child(3) .rank-num{background:rgba(255,200,0,.12);color:#ffc800}
.rank-item span{
    font-size:14px;
    font-weight:600;
    line-height:1.4;
}
.rank-item small{
    margin-left:auto;
    color:var(--muted);
    font-size:12px;
    white-space:nowrap;
}
/* ===== Features ===== */
.features-section{
    padding:100px 0;
    background:var(--dark);
    position:relative;
}
.features-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:28px;
}
.feature-card{
    background:var(--dark-2);
    border:1px solid var(--border);
    border-radius:var(--radius);
    padding:34px 28px;
    text-align:center;
    transition:all .4s var(--ease);
    position:relative;
    overflow:hidden;
}
.feature-card::before{
    content:"";
    position:absolute;
    top:0;left:0;right:0;
    height:3px;
    background:linear-gradient(90deg,var(--primary),var(--secondary));
    transform:scaleX(0);
    transition:transform .4s var(--ease);
}
.feature-card:hover{
    transform:translateY(-6px);
    box-shadow:var(--shadow-soft);
    border-color:rgba(0,229,255,.2);
}
.feature-card:hover::before{transform:scaleX(1)}
.feature-icon{
    width:64px;height:64px;
    margin:0 auto 18px;
    border-radius:18px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:24px;
    color:var(--primary);
    background:rgba(0,229,255,.1);
    border:1px solid rgba(0,229,255,.2);
    transition:all .4s var(--ease);
}
.feature-card:hover .feature-icon{
    background:var(--primary);
    color:#0a0e1a;
    transform:scale(1.08);
    box-shadow:0 0 30px rgba(0,229,255,.35);
}
.feature-card h3{
    font-size:17px;
    font-weight:700;
    margin-bottom:10px;
}
.feature-card p{
    color:var(--muted);
    font-size:14px;
    line-height:1.7;
}
/* ===== Community ===== */
.community-section{
    padding:100px 0;
    background:linear-gradient(135deg,var(--dark-2),#111d35);
    border-top:1px solid var(--border);
    position:relative;
    overflow:hidden;
}
.community-layout{
    display:grid;
    grid-template-columns:1.2fr 1fr;
    gap:60px;
    align-items:center;
}
.community-text .section-eyebrow{margin-bottom:16px}
.community-text h2{
    font-size:clamp(30px,4vw,44px);
    font-weight:800;
    line-height:1.3;
    margin-bottom:18px;
}
.community-text p{
    color:var(--muted);
    font-size:16px;
    line-height:1.8;
    margin-bottom:28px;
}
.community-points{
    display:flex;
    flex-direction:column;
    gap:14px;
    margin-bottom:32px;
}
.community-point{
    display:flex;
    align-items:flex-start;
    gap:14px;
    padding:14px 18px;
    border-radius:14px;
    background:rgba(255,255,255,.04);
    border:1px solid var(--border);
    transition:all .3s var(--ease);
}
.community-point:hover{
    background:rgba(0,229,255,.05);
    border-color:rgba(0,229,255,.2);
}
.community-point i{
    color:var(--primary);
    font-size:18px;
    margin-top:3px;
}
.community-point strong{
    display:block;
    font-size:15px;
    font-weight:700;
    margin-bottom:2px;
}
.community-point em{
    font-style:normal;
    color:var(--muted);
    font-size:14px;
}
.community-visual{
    position:relative;
    border-radius:var(--radius-lg);
    overflow:hidden;
    border:1px solid var(--border);
    box-shadow:var(--shadow);
}
.community-visual img{
    width:100%;
    height:460px;
    object-fit:cover;
}
.community-visual::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(to top,rgba(8,12,24,.7),transparent 50%);
}
.community-badge{
    position:absolute;
    right:18px;
    bottom:18px;
    z-index:2;
    display:flex;
    align-items:center;
    gap:10px;
    padding:10px 18px;
    border-radius:40px;
    background:rgba(8,12,24,.8);
    backdrop-filter:blur(10px);
    border:1px solid rgba(0,229,255,.3);
    font-size:13px;
    font-weight:600;
}
.community-badge i{
    color:var(--primary);
    animation:dotPulse 1.6s ease-in-out infinite;
}
/* ===== FAQ ===== */
.faq-section{
    padding:100px 0;
    background:var(--dark);
}
.faq-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:20px;
    max-width:1000px;
    margin:0 auto;
}
.faq-item{
    background:var(--dark-2);
    border:1px solid var(--border);
    border-radius:var(--radius);
    padding:26px 28px;
    transition:all .35s var(--ease);
}
.faq-item:hover{
    border-color:rgba(0,229,255,.25);
    box-shadow:var(--shadow-soft);
}
.faq-q{
    display:flex;
    align-items:flex-start;
    gap:14px;
    font-size:17px;
    font-weight:700;
    line-height:1.5;
    margin-bottom:10px;
}
.faq-q i{
    color:var(--primary);
    font-size:18px;
    margin-top:2px;
    flex-shrink:0;
}
.faq-a{
    color:var(--muted);
    font-size:15px;
    line-height:1.8;
    padding-left:32px;
}
/* ===== CTA ===== */
.cta-section{
    padding:90px 0;
    position:relative;
    overflow:hidden;
    background:var(--dark-2);
    border-top:1px solid var(--border);
}
.cta-card{
    position:relative;
    border-radius:var(--radius-lg);
    overflow:hidden;
    padding:70px 56px;
    border:1px solid var(--border);
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:40px;
    flex-wrap:wrap;
}
.cta-card::before{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(135deg,rgba(0,229,255,.06),rgba(255,45,85,.06));
}
.cta-card::after{
    content:"";
    position:absolute;
    right:-80px;top:-80px;
    width:300px;height:300px;
    border-radius:50%;
    background:var(--primary-glow);
    filter:blur(120px);
    opacity:.2;
}
.cta-content{
    position:relative;
    z-index:2;
    flex:1;
    min-width:280px;
}
.cta-content h2{
    font-size:clamp(28px,4vw,40px);
    font-weight:800;
    margin-bottom:12px;
}
.cta-content p{
    color:var(--muted);
    font-size:16px;
    max-width:500px;
}
.cta-actions{
    position:relative;
    z-index:2;
    display:flex;
    gap:14px;
    flex-wrap:wrap;
}
/* ===== Footer ===== */
.site-footer{
    background:var(--dark-2);
    border-top:1px solid var(--border);
    padding:60px 0 30px;
}
.footer-top{
    display:grid;
    grid-template-columns:1.6fr 1fr 1fr;
    gap:40px;
    padding-bottom:40px;
    border-bottom:1px solid var(--border);
}
.footer-brand .logo-text{
    font-size:22px;
    margin-bottom:14px;
    display:inline-block;
}
.footer-brand p{
    color:var(--muted);
    font-size:14px;
    line-height:1.8;
    max-width:320px;
}
.footer-col h4{
    font-size:15px;
    font-weight:700;
    margin-bottom:18px;
    color:var(--text);
    letter-spacing:.5px;
}
.footer-col a{
    display:block;
    color:var(--muted);
    font-size:14px;
    padding:6px 0;
    transition:color .3s,padding-left .3s;
}
.footer-col a:hover{
    color:var(--primary);
    padding-left:5px;
}
.footer-bottom{
    padding-top:30px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    flex-wrap:wrap;
    gap:16px;
    color:var(--muted);
    font-size:13px;
}
.footer-bottom .domain{
    color:var(--muted);
    font-size:13px;
    font-family:monospace;
}
/* ===== No data ===== */
.empty-state{
    background:var(--dark-3);
    border:1px dashed rgba(255,255,255,.15);
    border-radius:var(--radius);
    padding:44px 32px;
    text-align:center;
    color:var(--muted);
    font-size:15px;
}
.empty-state i{
    display:block;
    font-size:32px;
    margin-bottom:12px;
    color:rgba(255,255,255,.15);
}
/* ===== Responsive ===== */
@media (max-width:1024px){
    .hero{padding-top:120px}
    .features-grid{grid-template-columns:repeat(2,1fr)}
    .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
    .section-pad,.categories-section,.news-section,.features-section,.community-section,.faq-section,.cta-section{padding:64px 0}
    .stats-grid{grid-template-columns:repeat(2,1fr)}
    .stat-item::after{display:none}
    .cat-grid{grid-template-columns:1fr}
    .news-grid{grid-template-columns:1fr}
    .community-layout{grid-template-columns:1fr;gap:40px}
    .community-visual img{height:320px}
    .faq-grid{grid-template-columns:1fr}
    .cta-card{padding:44px 30px;flex-direction:column;align-items:flex-start}
    .site-header .nav-links{
        display:none;
        position:absolute;
        top:76px;
        left:0;right:0;
        background:rgba(8,12,24,.98);
        border-bottom:1px solid var(--border);
        flex-direction:column;
        padding:16px 24px;
        gap:4px;
        backdrop-filter:blur(18px);
    }
    .site-header .nav-links.is-open{display:flex}
    .site-header .nav-links.left-links,.site-header .nav-links.right-links{
        justify-content:flex-start;
        flex:1;
    }
    .nav-links a{padding:12px 20px;width:100%;font-size:16px}
    .nav-toggle{display:flex;order:3}
    .nav-main{flex-wrap:nowrap}
    .nav-logo{order:2;margin:0 10px}
    .nav-logo .logo-text{font-size:20px}
    .nav-left,.nav-right{flex:1}
    .nav-left{justify-content:flex-start}
    .nav-right{justify-content:flex-end}
    .footer-top{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column;text-align:center;justify-content:center}
}
@media (max-width:520px){
    .stats-grid{grid-template-columns:repeat(2,1fr);gap:16px}
    .features-grid{grid-template-columns:1fr}
    .hero-buttons{flex-direction:column;align-items:stretch}
    .hero-buttons .btn{justify-content:center}
    .nav-logo .logo-text{font-size:17px}
    .news-card{padding:20px}
    .community-visual img{height:240px}
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
    --primary: #00d4ff;
    --primary-dark: #0096cc;
    --primary-glow: rgba(0, 212, 255, 0.35);
    --secondary: #ff3b5c;
    --accent: #7b61ff;
    --bg-dark: #0a0f1e;
    --bg-card: #111a2e;
    --bg-card-hover: #16203a;
    --bg-deep: #060b15;
    --text-light: #e8ecf4;
    --text-muted: #7a86a0;
    --text-bright: #ffffff;
    --border-light: rgba(255, 255, 255, 0.08);
    --border-heavy: rgba(255, 255, 255, 0.18);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 32px;
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
}

/* ===== Reset / Base ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

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

button,
input {
    font-family: inherit;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 通用按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 15px;
    line-height: 1.4;
    cursor: pointer;
    border: none;
    background: transparent;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #04121e;
    box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
    box-shadow: 0 6px 30px var(--primary-glow);
    transform: translateY(-2px);
    color: #04121e;
}

.btn-ghost {
    background: transparent;
    color: var(--text-light);
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn-ghost:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(0, 212, 255, 0.06);
}

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

.btn-outline:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-2px);
}

/* 标签 */
.badge {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    background: rgba(0, 212, 255, 0.12);
    color: var(--primary);
    border: 1px solid rgba(0, 212, 255, 0.25);
}

.badge-red {
    background: rgba(255, 59, 92, 0.12);
    color: var(--secondary);
    border-color: rgba(255, 59, 92, 0.3);
}

.badge-purple {
    background: rgba(123, 97, 255, 0.12);
    color: var(--accent);
    border-color: rgba(123, 97, 255, 0.3);
}

/* ===== Header ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(6, 11, 21, 0.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.25);
}

.site-header .grid-container {
    max-width: 1210px;
}

.nav-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 0;
    position: relative;
    min-height: 64px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 1;
    z-index: 2;
    padding: 0 12px;
}

.nav-links a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition);
    white-space: nowrap;
}

.nav-links a i {
    font-size: 14px;
    color: var(--primary);
    opacity: 0.7;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--text-light);
    background: rgba(255, 255, 255, 0.06);
}

.nav-links a.active {
    color: var(--primary);
    background: rgba(0, 212, 255, 0.1);
    font-weight: 600;
}

.nav-links a.active i {
    opacity: 1;
}

.nav-logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

.logo-text {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #ffffff 40%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 25px rgba(0, 212, 255, 0.3);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    border: 1px solid var(--border-light);
    background: transparent;
    cursor: pointer;
    align-items: center;
    z-index: 4;
}

.nav-toggle span {
    width: 20px;
    height: 2px;
    background: var(--text-light);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ===== Page Hero ===== */
.page-hero {
    position: relative;
    padding: 92px 0 88px;
    background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    border-bottom: 1px solid var(--border-light);
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(6, 11, 21, 0.92), rgba(6, 11, 21, 0.72), rgba(0, 212, 255, 0.15));
}

.page-hero::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(to bottom, transparent, var(--bg-dark));
    z-index: 1;
}

.page-hero .container {
    position: relative;
    z-index: 2;
}

.page-hero-content {
    max-width: 720px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 18px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    background: rgba(0, 212, 255, 0.12);
    border: 1px solid rgba(0, 212, 255, 0.3);
    color: var(--primary);
    margin-bottom: 22px;
    letter-spacing: 0.5px;
}

.hero-badge i {
    font-size: 13px;
}

.page-hero-content h1 {
    font-size: 48px;
    font-weight: 900;
    line-height: 1.15;
    color: var(--text-bright);
    margin-bottom: 18px;
    letter-spacing: -1.5px;
}

.page-hero-content h1 .highlight {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-hero-content p {
    font-size: 17px;
    line-height: 1.8;
    color: rgba(232, 236, 244, 0.8);
    margin-bottom: 32px;
    max-width: 560px;
}

.hero-btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

/* ===== 分类简介 ===== */
.category-intro {
    padding: 90px 0;
    background: var(--bg-dark);
}

.section-head {
    text-align: center;
    margin-bottom: 52px;
}

.section-head .section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary);
    margin-bottom: 10px;
}

.section-head h2 {
    font-size: 34px;
    font-weight: 800;
    color: var(--text-light);
    letter-spacing: -1px;
    line-height: 1.25;
}

.section-head .sub {
    display: block;
    max-width: 560px;
    margin: 12px auto 0;
    color: var(--text-muted);
    font-size: 15px;
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.intro-text h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-light);
    line-height: 1.35;
}

.intro-text p {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.9;
    margin-bottom: 24px;
}

.intro-features {
    display: grid;
    gap: 18px;
}

.intro-feature {
    display: flex;
    gap: 16px;
    padding: 18px 22px;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.intro-feature:hover {
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateX(6px);
    box-shadow: var(--shadow-sm);
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(0, 212, 255, 0.1);
    color: var(--primary);
    font-size: 20px;
}

.feature-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 4px;
}

.feature-content p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ===== 资讯卡片 ===== */
.news-feed {
    padding: 90px 0;
    background: var(--bg-deep);
    position: relative;
}

.news-feed::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--primary), transparent);
    opacity: 0.3;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.news-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: rgba(0, 212, 255, 0.25);
}

.news-card .card-thumb {
    position: relative;
    height: 178px;
    overflow: hidden;
}

.news-card .card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.news-card:hover .card-thumb img {
    transform: scale(1.06);
}

.card-thumb .thumb-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 2;
    background: rgba(6, 11, 21, 0.78);
    backdrop-filter: blur(8px);
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary);
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.card-body {
    padding: 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.card-body .card-title {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
    color: var(--text-light);
    transition: var(--transition);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card:hover .card-title {
    color: var(--primary);
}

.card-body .card-excerpt {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: var(--text-muted);
    padding-top: 12px;
    border-top: 1px solid var(--border-light);
    margin-top: auto;
}

.card-meta span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.card-meta i {
    font-size: 12px;
    color: var(--primary);
}

/* 数据统计 */
.stats-panel {
    padding: 80px 0;
    background: url('/assets/images/backpic/back-2.png') center/cover no-repeat fixed;
    position: relative;
}

.stats-panel::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(6, 11, 21, 0.88);
}

.stats-panel .container {
    position: relative;
    z-index: 1;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.stat-card {
    text-align: center;
    padding: 42px 20px;
    background: rgba(17, 26, 46, 0.72);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.stat-card:hover {
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateY(-4px);
}

.stat-card .stat-value {
    font-size: 42px;
    font-weight: 900;
    color: var(--primary);
    line-height: 1.1;
    letter-spacing: -1px;
    margin-bottom: 8px;
}

.stat-card .stat-label {
    font-size: 14px;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}

/* ===== 热门话题 ===== */
.hot-topics {
    padding: 90px 0;
    background: var(--bg-dark);
}

.topic-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    max-width: 820px;
    margin: 0 auto;
}

.topic-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 22px;
    border-radius: 999px;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
}

.topic-item i {
    font-size: 12px;
    color: var(--secondary);
}

.topic-item:hover {
    color: var(--primary);
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* ===== 深度阅读 ===== */
.featured-reads {
    padding: 90px 0;
    background: var(--bg-deep);
}

.featured-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 24px;
}

.featured-main {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 420px;
    border: 1px solid var(--border-light);
    transition: var(--transition);
    cursor: pointer;
}

.featured-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 420px;
    transition: transform 0.8s ease;
}

.featured-main:hover img {
    transform: scale(1.03);
}

.featured-main .featured-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(6, 11, 21, 0.95) 0%, transparent 65%);
    display: flex;
    align-items: flex-end;
    padding: 32px;
}

.featured-overlay .overlay-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    line-height: 1.4;
    margin-bottom: 10px;
}

.featured-overlay .overlay-content p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.featured-side {
    display: grid;
    grid-template-rows: 1fr 1fr;
    gap: 24px;
}

.side-read {
    display: grid;
    grid-template-columns: 110px 1fr;
    gap: 18px;
    padding: 18px;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    transition: var(--transition);
    cursor: pointer;
    align-items: center;
}

.side-read:hover {
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateX(-5px);
    box-shadow: var(--shadow-sm);
}

.side-read img {
    width: 110px;
    height: 88px;
    object-fit: cover;
    border-radius: 10px;
}

.side-read h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-light);
    line-height: 1.5;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.side-read .side-meta {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ===== FAQ ===== */
.faq-section {
    padding: 90px 0;
    background: var(--bg-dark);
}

.faq-wrap {
    max-width: 780px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    margin-bottom: 14px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: rgba(0, 212, 255, 0.2);
}

.faq-item.active {
    border-color: rgba(0, 212, 255, 0.35);
}

.faq-q {
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    font-weight: 600;
    font-size: 16px;
    color: var(--text-light);
    gap: 16px;
}

.faq-q .faq-icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0, 212, 255, 0.1);
    color: var(--primary);
    font-size: 13px;
    transition: var(--transition);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
    background: var(--primary);
    color: #04121e;
}

.faq-a {
    padding: 0 24px 22px;
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.85;
    display: none;
}

.faq-item.active .faq-a {
    display: block;
}

/* ===== CTA ===== */
.cta-section {
    padding: 90px 0;
    background: linear-gradient(135deg, var(--bg-card) 0%, #0d1a33 100%);
    border-top: 1px solid var(--border-light);
}

.cta-box {
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
    padding: 48px 40px;
    border-radius: var(--radius-xl);
    background: radial-gradient(circle at 50% 0%, rgba(0, 212, 255, 0.12), transparent 60%),
        radial-gradient(circle at 80% 80%, rgba(255, 59, 92, 0.06), transparent 40%);
    border: 1px solid var(--border-light);
}

.cta-box h2 {
    font-size: 32px;
    font-weight: 800;
    color: var(--text-bright);
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.cta-box p {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 30px;
}

.cta-btn-wrap {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--bg-deep);
    border-top: 1px solid var(--border-light);
    padding: 60px 0 0;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border-light);
}

.footer-brand .logo-text {
    font-size: 22px;
    margin-bottom: 16px;
    display: inline-block;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.8;
    max-width: 320px;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 20px;
}

.footer-col a {
    display: block;
    padding: 5px 0;
    font-size: 14px;
    color: var(--text-muted);
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--primary);
    padding-left: 8px;
}

.footer-bottom {
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: #4b576b;
    flex-wrap: wrap;
    gap: 8px;
}

.footer-bottom .domain {
    color: var(--primary);
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* ===== 响应式 ===== */
@media screen and (max-width: 1024px) {
    .news-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

    .featured-main {
        min-height: 340px;
    }

    .featured-main img {
        min-height: 340px;
    }

    .footer-top {
        grid-template-columns: 1.5fr 1fr 1fr;
        gap: 30px;
    }
}

@media screen and (max-width: 768px) {
    .page-hero-content h1 {
        font-size: 34px;
    }

    .intro-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

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

    .featured-side {
        grid-template-rows: auto auto;
    }

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

    .nav-links {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(6, 11, 21, 0.97);
        backdrop-filter: blur(16px);
        padding: 20px;
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        display: none;
        border-bottom: 1px solid var(--border-light);
        z-index: 999;
        max-height: calc(100vh - 64px);
        overflow-y: auto;
    }

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

    .nav-links a {
        width: 100%;
        padding: 12px 16px;
        font-size: 15px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-logo {
        position: static;
        transform: none;
        margin: 0 auto;
    }

    .nav-logo .logo-text {
        font-size: 18px;
    }

    .nav-main {
        gap: 8px;
    }

    .nav-links.left-links {
        left: 0;
        top: 64px;
        order: 3;
    }

    .nav-links.right-links {
        order: 4;
    }
}

@media screen and (max-width: 520px) {
    .page-hero {
        padding: 60px 0;
    }

    .page-hero-content h1 {
        font-size: 28px;
    }

    .page-hero-content p {
        font-size: 15px;
    }

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

    .news-card .card-thumb {
        height: 200px;
    }

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

    .section-head h2 {
        font-size: 26px;
    }

    .hero-btn-group .btn {
        width: 100%;
        justify-content: center;
    }

    .cta-box {
        padding: 32px 20px;
    }

    .cta-box h2 {
        font-size: 26px;
    }

    .side-read {
        grid-template-columns: 1fr;
    }

    .side-read img {
        width: 100%;
        height: 120px;
    }

    .topic-item {
        padding: 8px 14px;
        font-size: 13px;
    }
}

/* roulang page: category2 */
:root {
            --primary: #FF4B6E;
            --primary-dark: #E0385B;
            --primary-light: #FFE8EE;
            --accent: #00D4FF;
            --accent-dark: #00A8CC;
            --bg-dark: #0A0E17;
            --bg-darker: #060A12;
            --bg-card: #121A29;
            --bg-card-light: #1A2438;
            --surface: #0F1522;
            --text-main: #F0F4FF;
            --text-sub: #A0AEC0;
            --text-weak: #6B7A90;
            --border: rgba(255,255,255,0.08);
            --border-light: rgba(255,255,255,0.14);
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-sm: 8px;
            --shadow-sm: 0 4px 16px rgba(0,0,0,0.25);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.35);
            --shadow-glow: 0 0 40px rgba(255,75,110,0.15);
            --transition: all 0.3s ease;
            --space-section: 90px;
        }

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

        html { scroll-behavior: smooth; }

        body {
            background: var(--bg-dark);
            color: var(--text-main);
            font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        button { font-family: inherit; cursor: pointer; }
        input, select, textarea { font-family: inherit; }

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

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(6, 10, 18, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
        }

        .nav-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 76px;
            gap: 16px;
            position: relative;
        }

        .nav-logo {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            align-items: center;
            gap: 10px;
            z-index: 2;
        }

        .logo-text {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: 0.5px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
        }

        .left-links { justify-content: flex-start; }
        .right-links { justify-content: flex-end; }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 8px 16px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-sub);
            border-radius: 40px;
            border: 1px solid transparent;
            white-space: nowrap;
            transition: var(--transition);
        }

        .nav-links a i { font-size: 0.85rem; color: var(--accent); opacity: 0.7; transition: var(--transition); }

        .nav-links a:hover {
            color: var(--text-main);
            background: rgba(255,255,255,0.06);
            border-color: var(--border-light);
        }

        .nav-links a.active {
            color: var(--text-main);
            background: rgba(255, 75, 110, 0.12);
            border-color: rgba(255, 75, 110, 0.35);
            font-weight: 600;
        }

        .nav-links a.active i { color: var(--primary); opacity: 1; }

        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-light);
            border-radius: 10px;
            width: 44px;
            height: 44px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            z-index: 10;
            transition: var(--transition);
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: var(--transition);
        }

        .nav-toggle:hover { background: rgba(255,255,255,0.08); }

        /* ========== Banner ========== */
        .category-banner {
            position: relative;
            padding: 100px 0 72px;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }

        .category-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(6,10,18,0.97) 30%, rgba(10,14,23,0.85) 60%, rgba(10,14,23,0.55) 100%);
        }

        .category-banner::after {
            content: "";
            position: absolute;
            width: 500px;
            height: 500px;
            right: -120px;
            top: -180px;
            background: radial-gradient(circle, rgba(255,75,110,0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .banner-inner { position: relative; z-index: 2; max-width: 780px; }

        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 75, 110, 0.15);
            border: 1px solid rgba(255, 75, 110, 0.4);
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 40px;
            margin-bottom: 22px;
            letter-spacing: 0.5px;
        }

        .banner-tag i { font-size: 0.8rem; }

        .category-banner h1 {
            font-size: clamp(2.2rem, 5vw, 3.4rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .category-banner h1 span {
            color: var(--primary);
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .category-banner p {
            font-size: 1.1rem;
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 30px;
        }

        .banner-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 20px;
        }

        .banner-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-sub);
            background: rgba(255,255,255,0.04);
            border: 1px solid var(--border);
            padding: 8px 16px;
            border-radius: 8px;
        }

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

        /* ========== 通用板块 ========== */
        .site-main { padding-bottom: var(--space-section); }

        .section-block { padding: var(--space-section) 0; position: relative; }

        .section-block.alt-bg { background: var(--bg-darker); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

        .section-head { margin-bottom: 48px; max-width: 780px; }

        .section-head .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-head .section-eyebrow::before {
            content: "";
            width: 22px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .section-head h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .section-head p {
            color: var(--text-sub);
            font-size: 1.05rem;
            line-height: 1.8;
        }

        /* ========== 数据面板 ========== */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .data-card {
            background: linear-gradient(145deg, var(--bg-card) 0%, var(--bg-card-light) 100%);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition);
        }

        .data-card:hover {
            transform: translateY(-6px);
            border-color: rgba(255,75,110,0.35);
            box-shadow: var(--shadow-md);
        }

        .data-card .data-num {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.1;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            margin-bottom: 8px;
        }

        .data-card .data-label { color: var(--text-sub); font-size: 0.95rem; font-weight: 500; }

        .data-card .data-sub { color: var(--text-weak); font-size: 0.82rem; margin-top: 6px; }

        /* ========== 文章卡片 ========== */
        .article-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
        }

        .article-card {
            display: flex;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .article-card:hover {
            transform: translateY(-4px);
            border-color: rgba(255,75,110,0.3);
            box-shadow: var(--shadow-md);
        }

        .article-cover {
            width: 280px;
            min-height: 190px;
            flex-shrink: 0;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .article-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, transparent 40%, var(--bg-card) 100%);
            opacity: 0.6;
        }

        .article-cover .cover-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            background: rgba(255, 75, 110, 0.92);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 40px;
        }

        .article-body {
            padding: 24px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            flex: 1;
        }

        .article-body .article-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 10px;
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
            transition: var(--transition);
        }

        .article-body h3:hover { color: var(--primary); }

        .article-body p {
            color: var(--text-sub);
            font-size: 0.95rem;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-meta {
            display: flex;
            gap: 18px;
            margin-top: 16px;
            font-size: 0.82rem;
            color: var(--text-weak);
        }

        .article-meta span { display: inline-flex; align-items: center; gap: 6px; }
        .article-meta i { color: var(--primary); font-size: 0.75rem; }

        /* ========== 战术拆解 ========== */
        .tactics-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .tactic-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            position: relative;
            overflow: hidden;
            transition: var(--transition);
        }

        .tactic-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }

        .tactic-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
        .tactic-card:hover::before { opacity: 1; }

        .tactic-icon {
            width: 54px;
            height: 54px;
            border-radius: 14px;
            background: rgba(255, 75, 110, 0.12);
            border: 1px solid rgba(255, 75, 110, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .tactic-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
        .tactic-card p { color: var(--text-sub); font-size: 0.92rem; line-height: 1.7; }

        .tactic-card .tactic-points {
            margin-top: 18px;
            list-style: none;
            padding: 0;
        }

        .tactic-card .tactic-points li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            color: var(--text-sub);
            font-size: 0.88rem;
            margin-bottom: 8px;
        }

        .tactic-card .tactic-points li i { color: var(--accent); font-size: 0.8rem; margin-top: 5px; }

        /* ========== 球队热度排行 ========== */
        .rank-panel {
            background: linear-gradient(145deg, var(--bg-card), var(--bg-darker));
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px;
            position: relative;
            overflow: hidden;
        }

        .rank-panel::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -120px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0,212,255,0.08), transparent 70%);
        }

        .rank-list { display: grid; grid-template-columns: 1fr; gap: 12px; }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 16px 20px;
            background: rgba(255,255,255,0.03);
            border: 1px solid var(--border);
            border-radius: 12px;
            transition: var(--transition);
        }

        .rank-item:hover { background: rgba(255,255,255,0.06); border-color: var(--border-light); transform: translateX(6px); }

        .rank-num {
            font-size: 1.2rem;
            font-weight: 800;
            min-width: 36px;
            text-align: center;
            color: var(--text-weak);
        }

        .rank-item:nth-child(1) .rank-num { color: #FFD700; }
        .rank-item:nth-child(2) .rank-num { color: #C0C0C0; }
        .rank-item:nth-child(3) .rank-num { color: #CD7F32; }

        .rank-name { flex: 1; font-weight: 600; font-size: 1rem; }

        .rank-bar {
            flex: 2;
            height: 8px;
            background: rgba(255,255,255,0.06);
            border-radius: 8px;
            overflow: hidden;
        }

        .rank-bar .fill {
            height: 100%;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 8px;
            transition: width 1.2s ease;
        }

        .rank-pct {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-sub);
            min-width: 52px;
            text-align: right;
        }

        /* ========== 赛事时间线 ========== */
        .timeline-wrap {
            position: relative;
            padding-left: 30px;
        }

        .timeline-wrap::before {
            content: "";
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--primary), var(--accent));
            opacity: 0.35;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 32px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            transition: var(--transition);
        }

        .timeline-item:hover { border-color: rgba(255,75,110,0.3); box-shadow: var(--shadow-sm); }

        .timeline-item::before {
            content: "";
            position: absolute;
            left: -28px;
            top: 28px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid var(--bg-darker);
            box-shadow: 0 0 0 3px rgba(255,75,110,0.25);
        }

        .timeline-item:nth-child(even)::before { background: var(--accent); box-shadow: 0 0 0 3px rgba(0,212,255,0.25); }

        .timeline-date {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,75,110,0.1);
            border: 1px solid rgba(255,75,110,0.3);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 40px;
            margin-bottom: 12px;
        }

        .timeline-item h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
        .timeline-item p { color: var(--text-sub); font-size: 0.95rem; line-height: 1.7; }

        .timeline-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }

        .mini-tag {
            font-size: 0.78rem;
            color: var(--accent);
            background: rgba(0,212,255,0.08);
            border: 1px solid rgba(0,212,255,0.2);
            padding: 3px 12px;
            border-radius: 20px;
        }

        /* ========== FAQ ========== */
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: var(--transition);
        }

        .faq-item:hover { border-color: rgba(255,75,110,0.3); }

        .faq-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 10px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .faq-item h3 i {
            color: var(--primary);
            font-size: 1.1rem;
            margin-top: 3px;
        }

        .faq-item p { color: var(--text-sub); font-size: 0.92rem; line-height: 1.75; padding-left: 26px; }

        /* ========== CTA ========== */
        .cta-panel {
            position: relative;
            background: linear-gradient(135deg, rgba(255,75,110,0.12) 0%, rgba(0,212,255,0.08) 100%);
            border: 1px solid rgba(255,75,110,0.3);
            border-radius: var(--radius-lg);
            padding: 60px 40px;
            text-align: center;
            overflow: hidden;
        }

        .cta-panel::before {
            content: "";
            position: absolute;
            top: -80px;
            left: 50%;
            transform: translateX(-50%);
            width: 400px;
            height: 200px;
            background: radial-gradient(ellipse, rgba(255,75,110,0.2), transparent 70%);
        }

        .cta-panel h2 {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 800;
            margin-bottom: 12px;
            position: relative;
        }

        .cta-panel p {
            color: var(--text-sub);
            font-size: 1.05rem;
            margin-bottom: 32px;
            position: relative;
        }

        .cta-btn-group { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; position: relative; }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--primary);
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            padding: 14px 34px;
            border-radius: 50px;
            border: none;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(255,75,110,0.3);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(255,75,110,0.45);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: var(--text-main);
            font-size: 1rem;
            font-weight: 600;
            padding: 14px 34px;
            border-radius: 50px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .btn-outline:hover {
            background: rgba(255,255,255,0.06);
            border-color: var(--accent);
            transform: translateY(-3px);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--bg-darker);
            border-top: 1px solid var(--border);
            padding: 64px 0 28px;
        }

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

        .footer-brand .logo-text { font-size: 1.4rem; display: inline-block; margin-bottom: 14px; }

        .footer-brand p {
            color: var(--text-sub);
            font-size: 0.95rem;
            line-height: 1.8;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 20px;
            letter-spacing: 1px;
        }

        .footer-col a {
            display: block;
            color: var(--text-sub);
            font-size: 0.92rem;
            margin-bottom: 12px;
            transition: var(--transition);
        }

        .footer-col a:hover { color: var(--primary); padding-left: 6px; }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            color: var(--text-weak);
            font-size: 0.85rem;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom .domain {
            font-family: monospace;
            background: rgba(255,255,255,0.04);
            padding: 4px 12px;
            border-radius: 6px;
            border: 1px solid var(--border);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            :root { --space-section: 70px; }

            .nav-links a { padding: 8px 12px; font-size: 0.85rem; }
            .logo-text { font-size: 1.2rem; }

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

            .article-cover { width: 220px; }

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

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

        @media (max-width: 768px) {
            .nav-main { min-height: 68px; }

            .nav-logo { position: static; transform: none; }

            .nav-links {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(6, 10, 18, 0.98);
                backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border);
                padding: 16px 24px;
                gap: 8px;
                align-items: stretch;
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                z-index: 99;
                box-shadow: 0 20px 40px rgba(0,0,0,0.5);
            }

            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }

            .nav-links a {
                padding: 14px 20px;
                font-size: 1rem;
                border-radius: 10px;
                border: 1px solid var(--border);
                justify-content: flex-start;
            }

            .nav-links a.active { background: rgba(255,75,110,0.12); border-color: rgba(255,75,110,0.35); }

            .nav-toggle {
                display: flex;
                position: absolute;
                right: 0;
            }

            .nav-logo { left: 0; transform: none; position: absolute; }
            .nav-logo .logo-text { font-size: 1.1rem; }

            .category-banner { padding: 72px 0 56px; }

            .banner-meta { gap: 10px; }

            .article-card { flex-direction: column; }

            .article-cover { width: 100%; height: 200px; }

            .article-cover::after {
                background: linear-gradient(0deg, var(--bg-card) 0%, transparent 60%);
            }

            .rank-panel { padding: 28px 20px; }

            .rank-item { flex-wrap: wrap; gap: 10px; }

            .rank-bar { order: 4; flex-basis: 100%; }

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

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

        @media (max-width: 520px) {
            :root { --space-section: 56px; }

            .grid-container, .container { padding: 0 18px; }

            .data-grid { grid-template-columns: 1fr 1fr; gap: 14px; }

            .data-card { padding: 22px 16px; }

            .data-card .data-num { font-size: 2.2rem; }

            .tactics-row { grid-template-columns: 1fr; }

            .category-banner h1 { font-size: 1.9rem; }

            .cta-panel { padding: 40px 22px; }

            .cta-btn-group { flex-direction: column; align-items: center; }

            .btn-primary, .btn-outline { width: 100%; justify-content: center; }

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

            .timeline-wrap { padding-left: 24px; }
            .timeline-item::before { left: -22px; }
        }

        @media (max-width: 380px) {
            .nav-logo .logo-text { font-size: 0.95rem; }
        }

        /* Focus 可访问性 */
        a:focus-visible, button:focus-visible, input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

/* roulang page: article */
:root {
            --color-bg: #0b0e1a;
            --color-surface: #131729;
            --color-surface-2: #1a1f38;
            --color-primary: #00d4ff;
            --color-secondary: #7b61ff;
            --color-accent: #ffc24b;
            --color-text: #e8ecf8;
            --color-text-weak: #8a93b5;
            --color-border: #252b45;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.15);
            --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: #fff;
            font-weight: 800;
        }

        .grid-container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 14, 26, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .left-links {
            justify-content: flex-start;
        }

        .right-links {
            justify-content: flex-end;
        }

        .nav-links a {
            color: var(--color-text-weak);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid transparent;
            transition: all .25s ease;
            white-space: nowrap;
        }

        .nav-links a i {
            font-size: 14px;
            color: var(--color-primary);
            opacity: .7;
            transition: opacity .25s;
        }

        .nav-links a:hover {
            color: var(--color-text);
            background: rgba(0, 212, 255, .08);
        }

        .nav-links a.active {
            color: var(--color-text);
            background: rgba(0, 212, 255, .12);
            border-color: rgba(0, 212, 255, .3);
            box-shadow: 0 0 20px rgba(0, 212, 255, .1);
        }

        .nav-links a.active i {
            opacity: 1;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px;
            border-radius: 12px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 19px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: .5px;
            white-space: nowrap;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid var(--color-border);
            background: var(--color-surface);
            border-radius: 10px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            transition: border-color .25s ease;
        }

        .nav-toggle:hover {
            border-color: rgba(0, 212, 255, .4);
        }

        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: all .3s ease;
        }

        .site-header.nav-open .nav-toggle span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .site-header.nav-open .nav-toggle span:nth-child(2) {
            opacity: 0;
        }

        .site-header.nav-open .nav-toggle span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 28px;
            border-radius: 100px;
            font-size: 15px;
            font-weight: 600;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all .3s ease;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--color-primary), #00a8cc);
            color: #060a14;
            box-shadow: 0 8px 20px rgba(0, 212, 255, .2);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            color: #060a14;
            box-shadow: 0 12px 30px rgba(0, 212, 255, .35);
        }

        .btn-primary:focus {
            outline: 2px solid rgba(0, 212, 255, .6);
            outline-offset: 2px;
        }

        .btn-outline {
            border-color: rgba(0, 212, 255, .4);
            color: var(--color-primary);
            background: transparent;
        }

        .btn-outline:hover {
            background: rgba(0, 212, 255, .1);
            color: var(--color-primary);
            border-color: var(--color-primary);
            transform: translateY(-2px);
        }

        .btn-outline:focus {
            outline: 2px solid rgba(0, 212, 255, .5);
            outline-offset: 2px;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
        }

        .site-footer {
            background: #080a14;
            border-top: 1px solid var(--color-border);
            padding: 60px 0 0;
        }

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

        .footer-brand .logo-text {
            font-size: 20px;
        }

        .footer-brand p {
            color: var(--color-text-weak);
            font-size: 14px;
            margin-top: 12px;
            max-width: 320px;
            line-height: 1.6;
        }

        .footer-col h4 {
            font-size: 16px;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            color: var(--color-text-weak);
            font-size: 14px;
            padding: 5px 0;
            transition: all .25s ease;
        }

        .footer-col a:hover {
            color: var(--color-primary);
            padding-left: 6px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: #5b647d;
            flex-wrap: wrap;
            gap: 8px;
        }

        .article-hero {
            position: relative;
            padding: 96px 0 70px;
            overflow: hidden;
            border-bottom: 1px solid var(--color-border);
            background: linear-gradient(180deg, rgba(11, 14, 26, .55) 0%, rgba(11, 14, 26, .95) 100%);
        }

        .article-hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: .3;
            z-index: 0;
        }

        .article-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 14, 26, .5) 0%, rgba(11, 14, 26, .35) 50%, rgba(11, 14, 26, .92) 100%);
            z-index: 0;
        }

        .article-hero .grid-container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 24px;
            font-size: 13px;
            color: var(--color-text-weak);
        }

        .breadcrumb a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-text-weak);
            transition: color .25s ease;
        }

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

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 100px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .3px;
        }

        .badge-category {
            background: rgba(0, 212, 255, .15);
            color: var(--color-primary);
            border: 1px solid rgba(0, 212, 255, .35);
        }

        .article-hero h1 {
            font-size: clamp(26px, 4vw, 40px);
            line-height: 1.3;
            font-weight: 800;
            margin: 18px 0 22px;
            max-width: 900px;
            letter-spacing: -.5px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            align-items: center;
            font-size: 14px;
            color: var(--color-text-weak);
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .article-meta i {
            color: var(--color-primary);
        }

        .article-section {
            padding: 60px 0;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 36px;
            align-items: start;
        }

        .article-main {
            min-width: 0;
        }

        .article-content {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-md);
            font-size: 16px;
            line-height: 1.9;
            color: #c6cee6;
            word-break: break-word;
        }

        .article-content p {
            margin: 0 0 1.5em;
        }

        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin: 2em 0 .8em;
            padding-left: 14px;
            border-left: 4px solid var(--color-primary);
        }

        .article-content h3 {
            font-size: 20px;
            color: #fff;
            margin: 1.8em 0 .6em;
        }

        .article-content h4 {
            font-size: 18px;
            color: #dfe6ff;
            margin: 1.5em 0 .5em;
        }

        .article-content img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            width: 100%;
            height: auto;
        }

        .article-content blockquote {
            border-left: 4px solid var(--color-primary);
            background: rgba(0, 212, 255, .06);
            padding: 18px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
            color: #aab4d6;
            font-style: italic;
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 1.5em;
            padding-left: 24px;
        }

        .article-content ul {
            list-style: disc;
        }

        .article-content ol {
            list-style: decimal;
        }

        .article-content li {
            margin-bottom: 8px;
        }

        .article-content a {
            color: var(--color-primary);
            border-bottom: 1px solid rgba(0, 212, 255, .3);
        }

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

        .not-found {
            text-align: center;
            padding: 60px 20px;
        }

        .not-found-icon {
            font-size: 56px;
            color: var(--color-primary);
            opacity: .7;
            margin-bottom: 20px;
        }

        .not-found h2 {
            font-size: 28px;
            margin-bottom: 12px;
        }

        .not-found p {
            color: var(--color-text-weak);
            margin-bottom: 28px;
            font-size: 15px;
        }

        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .sidebar-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

        .sidebar-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--color-border);
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

        .info-list li {
            display: flex;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px dashed rgba(255, 255, 255, .06);
            gap: 12px;
        }

        .info-list li:last-child {
            border-bottom: none;
        }

        .info-list span {
            color: var(--color-text-weak);
            font-size: 14px;
        }

        .info-list strong {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            text-align: right;
        }

        .latest-list li {
            padding: 10px 0;
            border-bottom: 1px dashed rgba(255, 255, 255, .06);
        }

        .latest-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .latest-list a {
            display: block;
            color: var(--color-text);
            font-size: 14px;
            line-height: 1.5;
            transition: color .25s ease;
        }

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

        .latest-list .latest-time {
            font-size: 12px;
            color: var(--color-text-weak);
            display: block;
            margin-top: 4px;
        }

        .sidebar-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .sidebar-links a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--color-text-weak);
            padding: 11px 14px;
            border-radius: 8px;
            background: rgba(255, 255, 255, .03);
            border: 1px solid transparent;
            font-size: 14px;
            transition: all .25s ease;
        }

        .sidebar-links a:hover {
            color: var(--color-text);
            background: rgba(0, 212, 255, .07);
            border-color: rgba(0, 212, 255, .25);
        }

        .sidebar-links i {
            color: var(--color-primary);
            font-size: 14px;
        }

        .sidebar-cta p {
            font-size: 14px;
            color: var(--color-text-weak);
            margin-bottom: 14px;
            line-height: 1.6;
        }

        .empty-tip {
            color: var(--color-text-weak);
            font-size: 14px;
            padding: 20px;
            text-align: center;
            border: 1px dashed var(--color-border);
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, .02);
        }

        .related-section {
            padding: 70px 0;
            background: linear-gradient(180deg, rgba(19, 23, 41, .6), rgba(19, 23, 41, .3));
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .section-head {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 212, 255, .1);
            border: 1px solid rgba(0, 212, 255, .3);
            color: var(--color-primary);
            padding: 5px 16px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .section-head p {
            color: var(--color-text-weak);
            font-size: 15px;
            max-width: 560px;
            margin: 0 auto;
        }

        .article-card {
            background: var(--color-surface-2);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            transform: translateY(-5px);
            border-color: rgba(0, 212, 255, .4);
            box-shadow: 0 12px 32px rgba(0, 0, 0, .4);
        }

        .cover-link {
            display: block;
            position: relative;
        }

        .card-cover {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

        .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

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

        .card-cat {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(0, 212, 255, .92);
            color: #060a14;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 100px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, .25);
        }

        .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-title {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .card-title a {
            color: var(--color-text);
            transition: color .25s ease;
        }

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

        .card-text {
            font-size: 13px;
            color: var(--color-text-weak);
            line-height: 1.6;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-meta {
            margin-top: auto;
            padding-top: 14px;
            border-top: 1px solid rgba(255, 255, 255, .06);
            display: flex;
            gap: 14px;
            font-size: 12px;
            color: var(--color-text-weak);
        }

        .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .faq-section {
            padding: 70px 0;
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 26px 28px;
            margin-bottom: 16px;
            transition: all .3s ease;
        }

        .faq-item:hover {
            border-color: rgba(0, 212, 255, .3);
            box-shadow: var(--shadow-glow);
        }

        .faq-item h4 {
            font-size: 17px;
            font-weight: 700;
            color: #dfe6ff;
            margin-bottom: 10px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .faq-item h4 i {
            color: var(--color-primary);
            font-size: 15px;
            margin-top: 4px;
        }

        .faq-item p {
            color: var(--color-text-weak);
            font-size: 15px;
            line-height: 1.7;
            padding-left: 25px;
        }

        .data-strip {
            padding: 70px 0;
            background: linear-gradient(180deg, rgba(0, 212, 255, .06) 0%, rgba(11, 14, 26, .4) 100%);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .data-cell {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 30px 20px;
            text-align: center;
            transition: all .3s ease;
        }

        .data-cell:hover {
            transform: translateY(-3px);
            border-color: rgba(0, 212, 255, .3);
            box-shadow: var(--shadow-glow);
        }

        .data-number {
            display: block;
            font-size: 32px;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 6px;
            letter-spacing: .5px;
        }

        .data-label {
            font-size: 14px;
            color: var(--color-text-weak);
        }

        .cta-section {
            padding: 75px 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(0, 212, 255, .14) 0%, transparent 60%),
                linear-gradient(180deg, rgba(11, 14, 26, .4), rgba(11, 14, 26, .9));
            border-top: 1px solid var(--color-border);
        }

        .cta-box {
            max-width: 760px;
            margin: 0 auto;
            text-align: center;
            padding: 0 20px;
        }

        .cta-box h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-box h2 span {
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .cta-box p {
            color: var(--color-text-weak);
            font-size: 16px;
            margin-bottom: 30px;
            line-height: 1.7;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        a:focus {
            outline: 2px solid rgba(0, 212, 255, .6);
            outline-offset: 2px;
        }

        .grid-x .cell {
            min-width: 0;
        }

        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 860px) {
            .nav-main {
                flex-wrap: wrap;
                position: relative;
                padding: 12px 0;
                gap: 0;
            }
            .nav-logo {
                order: 1;
                margin: 0 auto;
            }
            .nav-toggle {
                display: inline-flex;
                position: absolute;
                right: 4px;
                top: 50%;
                transform: translateY(-50%);
            }
            .nav-links {
                display: none;
                order: 3;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
                padding: 14px 0 6px;
            }
            .nav-links a {
                justify-content: flex-start;
                padding: 12px 14px;
                font-size: 15px;
            }
            .site-header.nav-open .nav-links {
                display: flex;
            }
            .article-hero {
                padding: 66px 0 46px;
            }
            .article-content {
                padding: 28px;
            }
            .cta-box h2 {
                font-size: 28px;
            }
            .section-head h2 {
                font-size: 26px;
            }
        }

        @media (max-width: 640px) {
            .sidebar {
                grid-template-columns: 1fr;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .data-cell {
                padding: 22px 14px;
            }
            .data-number {
                font-size: 26px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 26px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .article-content {
                padding: 22px 18px;
            }
            .article-meta {
                gap: 12px;
                font-size: 13px;
            }
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-actions .btn {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 400px) {
            .data-grid {
                grid-template-columns: 1fr;
            }
            .article-hero h1 {
                font-size: 23px;
            }
        }

/* roulang page: category3 */
:root {
    --primary: #00e5ff;
    --primary-deep: #009fc7;
    --accent: #ff3d81;
    --accent-soft: rgba(255, 61, 129, .16);
    --bg-dark: #070b14;
    --bg-deep: #0c1220;
    --bg-panel: #101a2c;
    --bg-card: #141f33;
    --bg-card-hover: #1a2740;
    --text-main: #eaf0f7;
    --text-muted: #8b98ab;
    --text-dim: #5d6b80;
    --border: rgba(0, 229, 255, .12);
    --border-bold: rgba(0, 229, 255, .3);
    --radius-sm: 10px;
    --radius: 16px;
    --radius-lg: 26px;
    --shadow: 0 12px 40px rgba(0, 0, 0, .45);
    --shadow-neon: 0 0 0 1px rgba(0, 229, 255, .25), 0 12px 44px rgba(0, 229, 255, .08);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --header-h: 76px;
    --space-section: clamp(64px, 8vw, 110px);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font);
    background: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
a { color: var(--primary); text-decoration: none; transition: color .25s ease; }
a:hover { color: #7df3ff; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea { font-family: inherit; }
.container { width: min(1200px, 92%); margin: 0 auto; }
.grid-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ===== Header ===== */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 999;
    background: rgba(7, 11, 20, .82);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, .05);
    transition: background .3s, box-shadow .3s;
}
.site-header.scrolled {
    background: rgba(7, 11, 20, .95);
    box-shadow: 0 8px 32px rgba(0, 0, 0, .5);
}
.nav-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    height: var(--header-h);
    position: relative;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 1;
}
.nav-links.left-links { justify-content: flex-end; }
.nav-links.right-links { justify-content: flex-start; }
.nav-links a {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 16px;
    border-radius: 40px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    transition: all .25s ease;
    white-space: nowrap;
}
.nav-links a i { font-size: 14px; color: var(--primary); opacity: .8; transition: opacity .2s; }
.nav-links a:hover { color: var(--text-main); background: rgba(0, 229, 255, .07); }
.nav-links a:hover i { opacity: 1; }
.nav-links a.active {
    color: var(--primary);
    background: rgba(0, 229, 255, .12);
    box-shadow: inset 0 0 0 1px rgba(0, 229, 255, .2);
    font-weight: 600;
}
.nav-links a.active i { opacity: 1; }
.nav-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    padding: 0 6px;
    margin: 0 6px;
}
.logo-text {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: .5px;
    background: linear-gradient(135deg, #00e5ff, #6df7ff 45%, #ff3d81);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    white-space: nowrap;
}
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 10px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text-main); border-radius: 2px; transition: all .3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.live-hero {
    position: relative;
    padding: calc(var(--header-h) + clamp(50px, 8vw, 90px)) 0 clamp(50px, 7vw, 90px);
    background: linear-gradient(rgba(7, 11, 20, .82), rgba(7, 11, 20, .92)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
    overflow: hidden;
    text-align: center;
}
.live-hero::after {
    content: '';
    position: absolute;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(0, 229, 255, .22), transparent 65%);
    top: -160px; right: -140px;
    pointer-events: none;
}
.live-hero .hero-inner { position: relative; z-index: 2; max-width: 780px; margin: 0 auto; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 18px;
    border-radius: 40px;
    background: rgba(0, 229, 255, .1);
    border: 1px solid rgba(0, 229, 255, .3);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .4px;
    margin-bottom: 22px;
}
.hero-badge i { font-size: 13px; }
.hero-title {
    font-size: clamp(32px, 5.6vw, 56px);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: 1px;
    margin-bottom: 18px;
}
.hero-title .highlight {
    background: linear-gradient(120deg, #00e5ff, #ff3d81);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-subtitle {
    font-size: clamp(15px, 2vw, 18px);
    color: var(--text-muted);
    max-width: 620px;
    margin: 0 auto 32px;
    line-height: 1.8;
}
.hero-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.btn {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 13px 30px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    transition: all .3s ease;
    border: none;
}
.btn-primary {
    background: linear-gradient(120deg, var(--primary), #00b8d4);
    color: #031014;
    box-shadow: 0 8px 28px rgba(0, 229, 255, .25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 36px rgba(0, 229, 255, .35); color: #031014; }
.btn-outline {
    background: transparent;
    color: var(--text-main);
    border: 1px solid rgba(255, 255, 255, .25);
    backdrop-filter: blur(6px);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); background: rgba(0, 229, 255, .06); }
.hero-meta {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 38px;
    flex-wrap: wrap;
}
.hero-meta span { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-muted); }
.hero-meta i { color: var(--primary); }

/* ===== Sections ===== */
.section { padding: var(--space-section) 0; }
.section-head {
    text-align: center;
    max-width: 640px;
    margin: 0 auto clamp(38px, 5vw, 56px);
}
.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 14px;
}
.section-tag::before, .section-tag::after {
    content: '';
    display: block;
    width: 22px; height: 1px;
    background: rgba(0, 229, 255, .4);
}
.section-title { font-size: clamp(26px, 4vw, 38px); font-weight: 800; line-height: 1.3; margin-bottom: 14px; }
.section-desc { font-size: 15px; color: var(--text-muted); line-height: 1.8; }

/* ===== Feature cards ===== */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 30px 22px;
    text-align: center;
    transition: transform .3s, box-shadow .3s, border-color .3s;
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    opacity: 0;
    transition: opacity .3s;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-neon); border-color: var(--border-bold); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
    width: 68px; height: 68px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 18px;
    font-size: 26px;
    color: var(--primary);
    background: rgba(0, 229, 255, .1);
    border: 1px solid rgba(0, 229, 255, .18);
}
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 13.5px; color: var(--text-muted); line-height: 1.7; }

/* ===== Schedule cards ===== */
.schedule-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.schedule-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: transform .3s, box-shadow .3s;
}
.schedule-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-neon); }
.schedule-cover { position: relative; height: 168px; overflow: hidden; }
.schedule-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.schedule-card:hover .schedule-cover img { transform: scale(1.06); }
.schedule-cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 55%, rgba(7, 11, 20, .85));
}
.schedule-status {
    position: absolute;
    top: 12px; left: 12px;
    z-index: 2;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    background: rgba(0, 229, 255, .85);
    color: #031014;
    backdrop-filter: blur(4px);
}
.schedule-status.series { background: rgba(255, 61, 129, .88); color: #fff; }
.schedule-body { padding: 18px 18px 20px; }
.schedule-body h3 { font-size: 15.5px; font-weight: 700; line-height: 1.45; margin-bottom: 8px; }
.schedule-body .meta { display: flex; align-items: center; gap: 7px; font-size: 12.5px; color: var(--text-dim); margin-bottom: 4px; }
.schedule-body .meta i { color: var(--primary); font-size: 12px; }
.schedule-body .time { margin-top: 10px; display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--primary); background: rgba(0, 229, 255, .08); padding: 4px 12px; border-radius: 20px; }

/* ===== Steps ===== */
.steps-section { background: var(--bg-deep); border-block: 1px solid rgba(255, 255, 255, .04); }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.step-card {
    position: relative;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 34px 22px 24px;
    text-align: center;
    transition: all .3s;
}
.step-card:hover { background: var(--bg-card); transform: translateY(-4px); }
.step-num {
    position: absolute;
    top: -18px;
    left: 50%;
    transform: translateX(-50%);
    width: 38px; height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(120deg, var(--primary), var(--accent));
    color: #031014;
    font-weight: 800;
    font-size: 15px;
    box-shadow: 0 0 0 4px var(--bg-deep);
}
.step-card h3 { font-size: 16px; font-weight: 700; margin: 12px 0 8px; }
.step-card p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }

/* ===== Stats ===== */
.stats-panel {
    background: linear-gradient(135deg, rgba(0, 229, 255, .07), rgba(255, 61, 129, .05)), var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: clamp(32px, 5vw, 55px) clamp(24px, 4vw, 50px);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 26px;
    text-align: center;
}
.stat-num {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 800;
    background: linear-gradient(135deg, #00e5ff, #ff3d81);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
    margin-bottom: 6px;
}
.stat-label { font-size: 14px; color: var(--text-muted); }
.stat-divider { display: none; }

/* ===== Community feed ===== */
.feed-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.feed-item {
    display: flex;
    gap: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    transition: all .3s;
}
.feed-item:hover { transform: translateX(4px); border-color: var(--border-bold); }
.feed-avatar {
    width: 44px; height: 44px;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    background: rgba(0, 229, 255, .12);
    color: var(--primary);
    border: 1px solid rgba(0, 229, 255, .2);
}
.feed-item:nth-child(even) .feed-avatar { background: rgba(255, 61, 129, .12); color: var(--accent); border-color: rgba(255, 61, 129, .2); }
.feed-content { flex: 1; }
.feed-content h4 { font-size: 14.5px; font-weight: 600; margin-bottom: 4px; line-height: 1.5; }
.feed-content p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }
.feed-meta { display: flex; align-items: center; gap: 12px; margin-top: 8px; font-size: 12px; color: var(--text-dim); }
.feed-meta i { font-size: 11px; color: var(--primary); }
.feed-meta span { display: inline-flex; align-items: center; gap: 4px; }

/* ===== FAQ ===== */
.faq-wrap { max-width: 760px; margin: 0 auto; }
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color .3s;
}
.faq-item.active { border-color: var(--border-bold); }
.faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 22px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    user-select: none;
    transition: background .3s;
}
.faq-q:hover { background: rgba(0, 229, 255, .03); }
.faq-q i { color: var(--primary); font-size: 14px; transition: transform .3s; flex-shrink: 0; }
.faq-item.active .faq-q i { transform: rotate(45deg); }
.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease;
}
.faq-a-inner { padding: 0 22px 20px; font-size: 14px; color: var(--text-muted); line-height: 1.8; }

/* ===== CTA ===== */
.cta-section {
    background: linear-gradient(rgba(7, 11, 20, .82), rgba(7, 11, 20, .92)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
    position: relative;
    padding: clamp(50px, 8vw, 90px) 0;
    text-align: center;
}
.cta-section .section-title { color: #fff; }
.cta-section .section-desc { color: #b8c4d4; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; margin-top: 30px; }
.cta-note { font-size: 13px; color: var(--text-dim); margin-top: 20px; }

/* ===== Footer ===== */
.site-footer {
    background: var(--bg-deep);
    border-top: 1px solid rgba(255, 255, 255, .05);
    padding: 60px 0 0;
}
.footer-top {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 36px;
}
.footer-brand .logo-text { font-size: 19px; }
.footer-brand p { font-size: 13.5px; color: var(--text-muted); margin-top: 12px; line-height: 1.7; max-width: 320px; }
.footer-col h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 14px;
    letter-spacing: .5px;
}
.footer-col a {
    display: block;
    font-size: 13.5px;
    color: var(--text-muted);
    padding: 5px 0;
    transition: all .25s;
}
.footer-col a:hover { color: var(--primary); padding-left: 4px; }
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .06);
    padding: 18px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--text-dim);
}
.footer-bottom .domain { color: var(--text-muted); letter-spacing: .4px; }

/* ===== Media Queries ===== */
@media (max-width: 1024px) {
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .schedule-grid { grid-template-columns: repeat(2, 1fr); }
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-panel { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    :root { --header-h: 64px; }
    .nav-links {
        position: fixed;
        top: var(--header-h);
        left: 0; right: 0;
        flex-direction: column;
        background: rgba(7, 11, 20, .97);
        padding: 12px 20px 20px;
        gap: 4px;
        transform: translateY(-120%);
        transition: transform .35s ease;
        z-index: 998;
        border-bottom: 1px solid rgba(0, 229, 255, .1);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
    }
    .nav-links.open { transform: translateY(0); }
    .nav-links.left-links, .nav-links.right-links { justify-content: flex-start; align-items: stretch; }
    .nav-links a { width: 100%; justify-content: center; padding: 12px; font-size: 15px; border-radius: 12px; }
    .nav-toggle { display: flex; }
    .nav-logo { order: -1; }
    .nav-main { justify-content: space-between; }
    .nav-links.left-links { order: 2; }
    .nav-links.right-links { order: 3; }
    .nav-toggle { order: 4; margin-left: auto; }
    .footer-top { grid-template-columns: 1fr; gap: 30px; text-align: center; }
    .footer-brand p { margin-left: auto; margin-right: auto; }
}
@media (max-width: 520px) {
    .feature-grid { grid-template-columns: 1fr; }
    .schedule-grid { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr; }
    .stats-panel { grid-template-columns: 1fr 1fr; gap: 20px; }
    .feed-grid { grid-template-columns: 1fr; }
    .hero-actions .btn { width: calc(50% - 8px); justify-content: center; padding: 12px 14px; font-size: 14px; }
    .footer-bottom { flex-direction: column; text-align: center; justify-content: center; }
}