/* roulang page: index */
:root{
 --bg-base:#0B0711; --bg-elev:#120C1D; --bg-elev-2:#191128;
 --bg-hero-glow:rgba(255,45,102,.16);
 --brand-primary:#FF2D78; --brand-secondary:#8B5CF6;
 --brand-special:#FFB86C;
 --grad-main:linear-gradient(135deg,#FF2D78 0%,#8B5CF6 100%);
 --text-high:#F5F1FA; --text-body:#C6BED4; --text-muted:#8C82A0;
 --border-subtle:rgba(255,255,255,.08);
 --border-strong:rgba(194,133,255,.45);
 --success:#34D399; --warning:#FBBF24; --danger:#F87171;
 --shadow-card:0 12px 32px rgba(0,0,0,.45);
 --shadow-card-hover:0 18px 46px rgba(0,0,0,.6);
 --shadow-cta:0 8px 30px rgba(255,45,120,.28);
 --radius-sm:8px; --radius-md:14px; --radius-lg:20px; --radius-pill:999px;
 --container-max:1160px;
 --ease-out:cubic-bezier(.16,1,.3,1);
 --dur-fast:.18s; --dur-mid:.35s;
 --bs-primary:#FF2D78; --bs-link-color:#C6BED4; --bs-link-hover-color:#FF2D78; --bs-body-bg:#0B0711; --bs-body-color:#C6BED4;
 --bs-border-color:rgba(255,255,255,.08);
 --bs-border-radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg-base);color:var(--text-body);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.75;font-size:16px}
a{color:var(--text-body);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-primary)}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4,h5,h6{color:var(--text-high);font-weight:700;line-height:1.3;margin:0 0 .65rem}
p{margin:0 0 1rem}
i.bi{line-height:1}
.container{max-width:var(--container-max)}
section{scroll-margin-top:140px}
.btn{border-radius:var(--radius-pill);font-weight:600;letter-spacing:.02em;transition:all .25s var(--ease-out)}
.btn-main{background:var(--grad-main);color:#fff;border:0;padding:13px 30px;box-shadow:none}
.btn-main:hover{filter:brightness(1.08);color:#fff;box-shadow:var(--shadow-cta);transform:translateY(-2px)}
.btn-main:focus-visible,.btn-ghost:focus-visible{outline:2px solid #fff;outline-offset:3px}
.btn-main:active{transform:translateY(2px);box-shadow:none}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.22);color:var(--text-high);padding:12px 28px}
.btn-ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.45);color:#fff}
.btn-sm{padding:8px 16px;font-size:.8rem}
.watch-btn{color:var(--text-body);border-bottom:1px solid rgba(255,255,255,.2);padding-bottom:2px}
.watch-btn:hover{color:var(--brand-primary);border-color:var(--brand-primary)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(255,45,120,.6);color:var(--brand-primary);font-size:.78rem;font-weight:600;letter-spacing:.14em;padding:6px 14px;border-radius:var(--radius-pill);background:rgba(255,45,120,.08)}
.mark-kicker{display:flex;align-items:center;gap:.5rem;color:var(--brand-primary);font-weight:600;letter-spacing:.08em;font-size:.85rem}
.mark-kicker::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--grad-main);display:inline-block}
.sec-title{font-size:2rem;font-weight:700;color:var(--text-high)}
.sec-desc{color:var(--text-muted);max-width:60ch;font-size:.95rem;line-height:1.8}
.section-spacer{padding:64px 0}
.bg-elev{background:var(--bg-elev);border:1px solid var(--border-subtle);border-radius:var(--radius-lg)}
.hero-glow{position:absolute;width:360px;height:360px;border-radius:50%;filter:blur(80px);opacity:.18;pointer-events:none}
.hero-glow-left{background:#FF2D78;left:-100px;top:80px}
.hero-glow-right{background:#8B5CF6;right:-140px;bottom:40px}

/* Header */
.site-header{position:sticky;top:0;z-index:1020}
.navbar-wrap{background:linear-gradient(180deg,rgba(11,7,17,.88) 0%,rgba(11,7,17,.68) 100%);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.06)}
.navbar{padding:.9rem 0;background:transparent}
.brand-mark{display:inline-flex;align-items:center;gap:9px;font-size:1.35rem;font-weight:800;color:var(--text-high);letter-spacing:-.02em}
.brand-mark .brand-badge{width:36px;height:36px;border-radius:11px;background:var(--grad-main);display:inline-flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 6px 18px rgba(255,45,120,.35)}
.brand-mark:hover{color:var(--text-high)}
.site-nav-link{color:#CFC7DE;font-weight:500;padding:.6rem 1rem;position:relative}
.site-nav-link::after{content:"";position:absolute;left:1rem;right:1rem;bottom:2px;height:2px;border-radius:var(--radius-pill);background:var(--grad-main);opacity:0;transform:scaleX(.2);transition:.3s var(--ease-out)}
.site-nav-link:hover{color:#fff}
.site-nav-link:hover::after,.site-nav-link.active::after{opacity:1;transform:scaleX(1)}
.site-nav-link.active{color:var(--brand-primary)}
.nav-cta{background:var(--grad-main);color:#fff;border:0;padding:.55rem 1.25rem;font-weight:600;border-radius:var(--radius-pill);font-size:.9rem}
.nav-cta:hover{color:#fff;box-shadow:var(--shadow-cta);transform:translateY(-1px)}
.step-guide{border-top:1px solid rgba(255,255,255,.05);background:rgba(18,12,29,.78);backdrop-filter:blur(10px)}
.step-list{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;margin:0;padding:.55rem 0}
.step-item a{display:flex;align-items:center;gap:9px;padding:.4rem .2rem;color:#A79CBE;font-size:.88rem;white-space:nowrap;position:relative}
.step-item .step-circle{width:27px;height:27px;border-radius:50%;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);color:#9A8DB2;display:inline-flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:700;transition:.25s}
.step-item a:hover{color:#fff}
.step-item.active .step-circle{background:var(--grad-main);border-color:transparent;color:#fff;box-shadow:0 0 0 5px rgba(255,45,120,.12)}
.step-item.active a{color:var(--text-high)}
.step-item + .step-item::before{content:"";flex:1;max-width:50px;height:1px;background:rgba(255,255,255,.14)}

/* Hero */
.hero-section{position:relative;padding:70px 0 40px;overflow:hidden}
.hero-copy{position:relative;z-index:2;text-align:center;max-width:880px;margin:0 auto 30px}
.hero-title{font-size:clamp(2rem,3.4vw,3.4rem);font-weight:800;letter-spacing:-.02em;color:var(--text-high);margin:1.2rem 0 1rem}
.hero-title .grad-text{background:var(--grad-main);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-lead{font-size:1.05rem;color:#B7ADC8;max-width:66ch;margin:0 auto 1.8rem;line-height:1.9}
.hero-cta{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}
.trust-line{display:flex;justify-content:center;gap:26px;flex-wrap:wrap;margin-top:1.3rem;color:var(--text-muted);font-size:.88rem}
.trust-line span{display:inline-flex;align-items:center;gap:7px}
.hero-stage-wrap{position:relative;z-index:2;margin-top:20px}
.hero-stage{max-width:940px;margin:0 auto;position:relative}
.stage-frame{background:var(--bg-elev);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);overflow:hidden}
.stage-bar{display:flex;align-items:center;gap:6px;background:#191128;padding:.65rem .9rem;border-bottom:1px solid rgba(255,255,255,.07)}
.stage-bar .dot{width:10px;height:10px;border-radius:50%;display:inline-block}
.stage-bar .address{background:rgba(255,255,255,.07);border-radius:6px;height:24px;width:100%;max-width:360px;margin-left:10px;display:flex;align-items:center;color:var(--text-muted);font-size:.78rem;padding:0 12px}
.stage-body{display:grid;grid-template-columns:210px 1fr;min-height:260px}
.stage-side{background:#0E0A15;border-right:1px solid rgba(255,255,255,.07);padding:1.1rem}
.stage-side .side-title{font-size:.75rem;letter-spacing:.15em;color:var(--text-muted);margin-bottom:.6rem}
.stage-side ul{list-style:none;margin:0;padding:0}
.stage-side li{padding:.55rem .7rem;border-radius:10px;color:#BCB2CC;font-size:.88rem;margin-bottom:4px;transition:.2s}
.stage-side li.active,.stage-side li:hover{background:rgba(255,45,120,.1);color:#fff}
.stage-main{padding:1.1rem}
.stage-main-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:.8rem}
.stage-main-head strong{color:var(--text-high)}
.stage-tag{font-size:.72rem;background:rgba(139,92,246,.2);color:#CBA9FF;border-radius:var(--radius-pill);padding:.2rem .7rem;font-weight:500}
.stage-list{list-style:none;margin:0;padding:0}
.stage-list li{display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.05);border-radius:12px;padding:.72rem .85rem;margin-bottom:8px;transition:.25s}
.stage-list li:hover{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.12);transform:translateX(4px)}
.stage-list .status{color:var(--success);font-size:.8rem;display:inline-flex;align-items:center;gap:5px}
.stage-list .status.warning{color:var(--warning)}
.stage-float{position:absolute;z-index:3;background:rgba(18,12,29,.95);border:1px solid var(--border-subtle);border-radius:14px;padding:.85rem 1rem;box-shadow:var(--shadow-card);font-size:.82rem}
.stage-float.top-left{top:-20px;left:2%}
.stage-float.bottom-right{bottom:-20px;right:2%;background:#191128}
.hero-feature-strip{position:relative;z-index:2;margin:80px auto 0;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.hero-feature{display:flex;gap:12px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07);border-radius:16px;padding:1rem 1.05rem;align-items:flex-start}
.hero-feature i{font-size:1.25rem;color:var(--brand-primary);background:rgba(255,45,120,.12);width:45px;height:45px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;flex:0 0 45px}
.hero-feature h3{font-size:1rem;margin-bottom:.1rem;color:#FFF}
.hero-feature p{font-size:.82rem;margin:0;color:var(--text-muted)}

/* Trust section */
.trust-block{background:var(--bg-elev);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:3rem 0}
.data-num{font-size:1.45rem;font-weight:800;color:var(--text-high);background:var(--grad-main);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* Brand story */
.brand-story{padding:4.5rem 0}
.story-figure{border-radius:20px;overflow:hidden;position:relative;border:1px solid var(--border-subtle)}
.story-figure img{width:100%;object-fit:cover}
.story-mini-note{position:absolute;left:16px;bottom:16px;background:rgba(11,7,17,.85);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.1);border-radius:12px;color:#fff;padding:.6rem .9rem;font-size:.82rem}

/* Categories section */
.cat-section{background:var(--bg-elev);border:1px solid rgba(255,255,255,.05);border-radius:32px;padding:3.5rem 0;margin:1rem 0 0}
.icon-box{width:48px;height:48px;border-radius:13px;background:linear-gradient(135deg,rgba(255,45,120,.2),rgba(139,92,246,.2));display:inline-flex;align-items:center;justify-content:center;color:var(--brand-primary);font-size:1.3rem;margin-bottom:.8rem}
.cat-side-menu{background:rgba(255,255,255,.04);border:1px solid var(--border-subtle);border-radius:18px;padding:1.3rem 1rem;position:sticky;top:145px}
.cat-side-menu h4{font-size:1.05rem;margin-bottom:.8rem;color:#FFF}
.cat-side-menu ul{list-style:none;margin:0;padding:0}
.cat-side-menu li a{display:flex;align-items:center;justify-content:space-between;padding:.62rem .72rem;border-radius:10px;color:#BCB2CC;font-size:.92rem}
.cat-side-menu li a i{font-size:.8rem;transition:transform .25s var(--ease-out)}
.cat-side-menu li a:hover{background:rgba(255,255,255,.07);color:#fff}
.cat-side-menu li a:hover i{transform:translateX(6px)}
.cat-side-menu li.active a{background:linear-gradient(90deg,rgba(255,45,120,.16),rgba(139,92,246,.1));color:#fff;box-shadow:inset 3px 0 0 var(--brand-primary)}
.hot-card{background:var(--bg-elev);border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:1.25rem;height:100%;transition:all .35s var(--ease-out)}
.hot-card:hover{transform:translateY(-6px);border-color:rgba(255,45,120,.35);box-shadow:var(--shadow-card-hover)}
.hot-card .chip{display:inline-flex;align-items:center;background:rgba(251,191,36,.12);color:var(--brand-special);border:1px solid rgba(251,191,36,.3);font-size:.72rem;font-weight:600;border-radius:var(--radius-pill);padding:.15rem .65rem;margin-left:auto}
.hot-card.new .chip{background:rgba(52,211,153,.12);color:var(--success);border-color:rgba(52,211,153,.35)}
.hot-card h3{font-size:1.05rem;color:#FFF;margin:.6rem 0 .3rem}
.hot-card p{color:var(--text-muted);font-size:.9rem;margin-bottom:1rem;flex-grow:1}
.hot-card .free-label{color:var(--brand-primary);font-size:.8rem;font-weight:600}
.hot-card .free-label i{margin-right:3px}
.cat-cta-card{background:linear-gradient(120deg,rgba(255,45,120,.16),rgba(139,92,246,.14));border:1px solid rgba(255,45,120,.25);border-radius:18px;padding:1.4rem;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:.8rem;margin-top:1.4rem}
.cat-cta-card strong{color:#FFF;font-size:1rem}
.cat-cta-card p{margin:0;font-size:.85rem;color:var(--text-body)}
.feature-link{font-weight:600;font-size:.9rem;color:var(--brand-primary)}

/* Scenario */
.scenario-row{margin-bottom:3.2rem;align-items:center}
.scenario-row:last-child{margin-bottom:0}
.scenario-pic{border-radius:22px;overflow:hidden;border:1px solid rgba(255,255,255,.1);position:relative;box-shadow:var(--shadow-card)}
.scenario-pic img{width:100%;object-fit:cover;height:300px}
.scenario-pic .pic-note{position:absolute;top:14px;right:14px;background:rgba(11,7,17,.78);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.14);color:#FFF;font-size:.78rem;border-radius:var(--radius-pill);padding:.25rem .8rem}
.scenario-text h3{font-size:1.4rem;margin-bottom:.75rem;color:#FFF}
.scenario-text p{color:#B8AEC5;line-height:1.85;margin-bottom:.8rem}

/* Reviews & trust data */
.quote-card{background:var(--bg-elev);border:1px solid rgba(255,255,255,.08);border-radius:20px;padding:1.4rem;margin-bottom:1rem;transition:.25s}
.quote-card:hover{border-color:rgba(139,92,246,.4);transform:translateY(-4px)}
.stars{color:var(--brand-special);letter-spacing:2px;font-size:.85rem;margin-bottom:.35rem}
.quote-card blockquote{margin:0 0 .6rem;color:#D9D2E6;font-size:.95rem;line-height:1.8}
.quote-user{color:var(--text-muted);font-size:.85rem;display:flex;align-items:center;gap:6px}
.data-list{list-style:none;margin:0;padding:0}
.data-list li{display:flex;border-bottom:1px dashed rgba(255,255,255,.1);padding:.8rem 0;justify-content:space-between;gap:.6rem}
.data-list li:last-child{border-bottom:0}
.data-list strong{color:var(--text-high);font-size:1.2rem}

/* News */
.news-row{display:flex;flex-direction:column;gap:0;margin-top:1.2rem}
.news-row a{display:flex;justify-content:space-between;gap:1rem;padding:.72rem 0;border-bottom:1px solid rgba(255,255,255,.05);color:#CFC7DE;font-size:.95rem}
.news-row a:hover{color:var(--brand-primary);padding-left:6px}
.news-date{color:var(--text-muted);font-size:.78rem;white-space:nowrap}
.side-note-card{background:var(--bg-elev);border:1px solid var(--border-subtle);border-radius:18px;padding:1.35rem;height:100%}
.side-note-card h4{font-size:1.05rem;color:#FFF}
.side-note-card ol{margin:0;padding-left:1.1rem;color:#B5AAC8;font-size:.9rem}
.side-note-card li{padding-bottom:.5rem}

/* Pricing */
.price-section{background:var(--bg-elev);border:1px solid rgba(255,255,255,.05);border-radius:32px;padding:3.5rem 0}
.price-card{background:#120C1D;border:1px solid rgba(255,255,255,.08);border-radius:24px;padding:1.7rem;margin-top:1rem;height:100%;display:flex;flex-direction:column;position:relative}
.price-card.featured{background:linear-gradient(160deg,#191128,#120C1D);border:1px solid rgba(255,45,120,.55);box-shadow:0 18px 44px rgba(0,0,0,.5);transform:scale(1.02)}
.price-card .plan-badge{position:absolute;top:-13px;right:20px;background:var(--grad-main);color:#fff;font-size:.75rem;padding:.3rem .8rem;border-radius:var(--radius-pill);font-weight:600;box-shadow:var(--shadow-cta)}
.price-amount{color:var(--text-high);font-weight:800;font-size:2.1rem}
.price-amount sub{font-size:.9rem;font-weight:400;color:var(--text-muted);margin-left:2px}
.price-list{list-style:none;padding:0;margin:1.2rem 0;flex-grow:1}
.price-list li{padding:.45rem 0;color:#B9AEC7;font-size:.94rem;display:flex;align-items:center;gap:.5rem}
.price-list li i{color:var(--success);font-size:.95rem}
.btn-outline-light-radius{border:1px solid rgba(255,255,255,.22);border-radius:var(--radius-pill);padding:12px 20px;font-weight:600;color:#FFF;display:block;text-align:center;width:100%}
.btn-outline-light-radius:hover{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.45);color:#fff}
.btn-price{background:var(--grad-main);color:#fff;display:block;text-align:center;width:100%;padding:13px 18px;border-radius:var(--radius-pill);font-weight:600;border:0;transition:.25s}
.btn-price:hover{color:#fff;box-shadow:var(--shadow-cta);transform:translateY(-2px);filter:brightness(1.05)}
.btn-price:active{transform:translateY(0);box-shadow:none}

/* FAQ */
.faq-item{background:rgba(255,255,255,.035);border:1px solid rgba(255,255,255,.07);border-radius:16px;padding:1rem 1.2rem;border-left:8px solid rgba(255,255,255,.14);margin-bottom:.8rem}
.faq-item h3{font-size:1.02rem;margin:0 0 .35rem;color:#F5F1FA;font-weight:600}
.faq-item p{margin:0;color:#AAA0B8;font-size:.92rem;padding-left:.2rem}

/* CTA */
.cta-zone{padding:2.4rem 0 4.8rem}
.cta-inner{max-width:760px;margin:0 auto;text-align:center;background:var(--bg-elev);border:1px solid var(--border-subtle);border-radius:32px;padding:3rem 1.8rem;position:relative;overflow:hidden}
.cta-inner .glow-bg{position:absolute;width:240px;height:240px;filter:blur(80px);opacity:.2;border-radius:50%}
.cta-inner .glow-bg.g1{background:#FF2D78;top:-110px;left:-100px}
.cta-inner .glow-bg.g2{background:#8B5CF6;bottom:-100px;right:-120px}
.cta-inner h2,.cta-inner p,.cta-inner .btn{z-index:2;position:relative}

/* Footer */
.site-footer{background:#0D0913;border-top:1px solid rgba(255,255,255,.06);padding:3rem 0 2rem}
.site-footer h4{color:#FFF;font-size:1rem}
.site-footer p,.site-footer li{color:var(--text-muted);font-size:.88rem}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{padding:.25rem 0}
.footer-links a{color:#A99DBE}
.footer-links a:hover{color:var(--brand-primary)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);margin-top:2rem;padding-top:1.3rem;display:flex;justify-content:space-between;gap:.8rem;flex-wrap:wrap;font-size:.8rem;color:#776C8E}
.legal-line{font-size:.78rem;color:#655B78;margin-top:.4rem}

/* Reveal */
.reveal{opacity:0;transform:translateY(26px);transition:all .65s var(--ease-out)}
.reveal.in-view{opacity:1;transform:none}

@media(max-width:991.98px){
 .hero-feature-strip{grid-template-columns:1fr}
 .cat-side-menu{position:static;margin-bottom:1.3rem}
 .stage-body{grid-template-columns:1fr}
 .stage-side{display:none}
 .price-card.featured{transform:none}
}
@media(max-width:767.98px){
 .section-spacer{padding:48px 0}
 .sec-title{font-size:1.6rem}
 .step-list{gap:12px;overflow-x:auto;scrollbar-width:none;padding:.55rem .2rem}
 .step-list::-webkit-scrollbar{display:none}
 .step-item{flex:0 0 auto}
 .step-item + .step-item::before{width:18px}
 .hero-copy .hero-title{font-size:1.9rem}
 .stage-main{padding:.9rem}
 .stage-list li{padding:.5rem .6rem;font-size:.85rem}
 .stage-float{position:static;display:inline-block;margin:.5rem .2rem 0}
 .stage-float.bottom-right{margin-left:0}
 .cta-inner{padding:2.2rem 1.2rem}
 .footer-bottom{flex-direction:column}
}

/* roulang page: category1 */
:root{
 --bg-base:#0B0711; --bg-elev:#120C1D; --bg-elev-2:#191128;
 --bg-hero-glow:rgba(255,45,102,.16);
 --brand-primary:#FF2D78; --brand-secondary:#8B5CF6;
 --brand-special:#FFB86C;
 --grad-main:linear-gradient(135deg,#FF2D78 0%,#8B5CF6 100%);
 --text-high:#F5F1FA; --text-body:#C6BED4; --text-muted:#8C82A0;
 --border-subtle:rgba(255,255,255,.08);
 --border-strong:rgba(194,133,255,.45);
 --success:#34D399; --warning:#FBBF24; --danger:#F87171;
 --shadow-card:0 12px 32px rgba(0,0,0,.45);
 --shadow-card-hover:0 18px 46px rgba(0,0,0,.6);
 --shadow-cta:0 8px 30px rgba(255,45,120,.28);
 --radius-sm:8px; --radius-md:14px; --radius-lg:20px; --radius-pill:999px;
 --container-max:1160px;
 --ease-out:cubic-bezier(.16,1,.3,1);
 --dur-fast:.18s; --dur-mid:.35s;
 --bs-primary:#FF2D78; --bs-link-color:#C6BED4; --bs-link-hover-color:#FF2D78; --bs-body-bg:#0B0711; --bs-body-color:#C6BED4;
 --bs-border-color:rgba(255,255,255,.08);
 --bs-border-radius:14px;
}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg-base);color:var(--text-body);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.75;font-size:16px}
a{color:var(--text-body);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-primary)}
img{max-width:100%;height:auto;display:block}
.container{max-width:var(--container-max)}
section{scroll-margin-top:150px}
.btn{border-radius:var(--radius-pill);font-weight:600;letter-spacing:.02em;transition:all .25s var(--ease-out)}
.btn-main{background:var(--grad-main);color:#fff;border:0;padding:12px 28px;box-shadow:none}
.btn-main:hover{filter:brightness(1.08);color:#fff;box-shadow:var(--shadow-cta);transform:translateY(-2px)}
.btn-main:focus-visible,.btn-ghost:focus-visible{outline:2px solid #fff;outline-offset:3px}
.btn-main:active{transform:translateY(2px);box-shadow:none}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.22);color:var(--text-high);padding:11px 26px}
.btn-ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.45);color:#fff}
.btn-sm{padding:8px 16px;font-size:.8rem}
.eyebrow{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(255,45,120,.6);color:var(--brand-primary);font-size:.78rem;font-weight:600;letter-spacing:.14em;padding:6px 14px;border-radius:var(--radius-pill);background:rgba(255,45,120,.08)}
.sec-title{font-size:2rem;font-weight:700;color:var(--text-high)}
/* ---- 顶部导航 ---- */
.site-header{position:sticky;top:0;z-index:1030}
.navbar-wrap{background:linear-gradient(180deg,rgba(11,7,17,.9) 0%,rgba(11,7,17,.72) 100%);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.06);transition:box-shadow .3s}
.navbar-wrap.is-stuck{box-shadow:0 12px 30px rgba(0,0,0,.28)}
.navbar{padding:.85rem 0;background:transparent}
.brand-mark{display:inline-flex;align-items:center;gap:9px;font-size:1.32rem;font-weight:800;color:var(--text-high);letter-spacing:-.02em}
.brand-mark .brand-badge{width:35px;height:35px;border-radius:11px;background:var(--grad-main);display:inline-flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 6px 18px rgba(255,45,120,.35)}
.brand-mark:hover{color:var(--text-high)}
.site-nav-link{color:#CFC7DE;font-weight:500;padding:.6rem 1rem;position:relative}
.site-nav-link::after{content:"";position:absolute;left:1rem;right:1rem;bottom:2px;height:2px;border-radius:var(--radius-pill);background:var(--grad-main);opacity:0;transform:scaleX(.2);transition:.3s var(--ease-out)}
.site-nav-link:hover{color:#fff}
.site-nav-link:hover::after,.site-nav-link.active::after{opacity:1;transform:scaleX(1)}
.site-nav-link.active{color:var(--brand-primary)}
.nav-cta{background:var(--grad-main);color:#fff;border:0;padding:.55rem 1.25rem;font-weight:600;font-size:.9rem;border-radius:var(--radius-pill)}
.nav-cta:hover{color:#fff;box-shadow:var(--shadow-cta);transform:translateY(-1px)}
.step-guide{background:#110B1B;border-bottom:1px solid rgba(255,255,255,.05)}
.step-list{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;margin:0;padding:.55rem 0}
.step-item a{display:flex;align-items:center;gap:9px;padding:.4rem .2rem;color:#A79CBE;font-size:.86rem;white-space:nowrap;position:relative}
.step-item .step-circle{width:26px;height:26px;border-radius:50%;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);color:#9A8DB2;display:inline-flex;align-items:center;justify-content:center;font-size:.78rem;font-weight:700;transition:.25s}
.step-item a:hover{color:#fff}
.step-item.active .step-circle{background:var(--grad-main);border-color:transparent;color:#fff;box-shadow:0 0 0 5px rgba(255,45,120,.12)}
.step-item.active a{color:var(--text-high)}
.step-item+.step-item::before{content:"";flex:1;max-width:46px;height:1px;background:rgba(255,255,255,.14)}
/* ---- 分类页头 ---- */
.cat-page-hero{position:relative;padding:44px 0 26px;overflow:hidden;border-bottom:1px solid rgba(255,255,255,.05);background:radial-gradient(600px 240px at 90% -40px,rgba(139,92,246,.2),transparent 70%),radial-gradient(500px 220px at 10% -20px,rgba(255,45,120,.14),transparent 70%)}
.crumb{padding:8px 0;background:transparent}
.crumb a,.crumb span{margin-right:10px;font-size:.86rem;color:var(--text-muted)}
.crumb a:hover{color:var(--brand-primary)}
.crumb .sep{color:rgba(255,255,255,.3)}
.cat-title-wrap{position:relative;z-index:2;padding:10px 0 14px}
.cat-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--brand-primary);font-size:.76rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;margin-bottom:2px}
.cat-kicker i{font-size:1rem}
.cat-title-wrap h1{margin:.5rem 0 .7rem;color:var(--text-high);font-size:clamp(1.8rem,3vw,2.7rem);font-weight:800;letter-spacing:-.03em}
.cat-title-wrap .grad-text{background:var(--grad-main);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.cat-desc{max-width:760px;font-size:.98rem;color:#BCB2CC;line-height:1.9}
.cat-head-stats{margin:16px 0 0;padding:0;list-style:none;display:flex;gap:22px;flex-wrap:wrap}
.cat-head-stats li{display:flex;align-items:center;gap:8px;font-size:.86rem;color:#9E93B4;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-pill);padding:6px 14px}
.cat-head-stats i{color:var(--brand-primary)}
.cat-side-float{position:relative;z-index:2;border-radius:var(--radius-lg);padding:18px;background:var(--bg-elev);border:1px solid rgba(255,255,255,.09);box-shadow:var(--shadow-card)}
.cat-side-float .float-num{color:var(--brand-primary);font-size:1.8rem;line-height:1.2;font-weight:800}
.cat-side-float p{margin:4px 0 0;font-size:.8rem;color:var(--text-muted)}
.seo-safe-note{margin-top:14px;font-size:.76rem;color:var(--text-muted);display:flex;gap:8px;line-height:1.6;border-left:3px solid rgba(255,45,120,.5);padding-left:12px}
/* ---- 筛选工具条 ---- */
.filter-wrap{position:sticky;top:108px;z-index:900;margin:-10px 0 22px;padding:10px 0}
.filter-bar{background:rgba(16,11,27,.82);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-md);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 12px 28px rgba(0,0,0,.32);padding:10px 14px;display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.chip-list{display:flex;align-items:center;gap:6px;flex-wrap:wrap;flex:1}
.chip{display:inline-flex;align-items:center;border:1px solid var(--border-subtle);background:rgba(255,255,255,.035);color:#ADB3C4;border-radius:var(--radius-pill);padding:5px 14px;font-size:.8rem;font-weight:600;transition:.2s;cursor:pointer}
.chip:hover{border-color:rgba(255,45,120,.45);color:#fff}
.chip.active{background:var(--grad-main);color:#fff;border-color:transparent;box-shadow:0 4px 14px rgba(255,45,120,.3)}
.toolbar-search{display:flex;gap:6px;min-width:280px;max-width:340px}
.toolbar-search .field{flex:1;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-pill);padding:7px 14px;color:#fff;font-size:.86rem;outline:none;transition:.2s}
.toolbar-search .field::placeholder{color:#776E8A}
.toolbar-search .field:focus{border-color:var(--brand-primary);background:rgba(255,45,120,.06);box-shadow:0 0 0 3px rgba(255,45,120,.14)}
.toolbar-search .btn-search{border:0;background:rgba(255,255,255,.08);color:#fff;border-radius:50%;width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;transition:.2s}
.toolbar-search .btn-search:hover{background:var(--grad-main)}
/* ---- Top5 热榜横幅 ---- */
.rank-hero{padding:20px 0 4px}
.rank-lead-card{position:relative;background:linear-gradient(135deg,rgba(255,45,102,.13),rgba(139,92,246,.08)),var(--bg-elev);border:1px solid rgba(194,133,255,.36);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);overflow:hidden;display:flex;min-height:320px}
.rank-lead-body{flex:1 1 58%;padding:2rem;position:relative;z-index:3}
.rank-lead-number{width:56px;height:56px;border-radius:16px;background:var(--grad-main);color:#fff;font-weight:800;font-size:1.3rem;display:inline-flex;align-items:center;justify-content:center;box-shadow:0 10px 24px rgba(255,45,120,.3)}
.rank-list{margin:1.3rem 0 0;padding:0;list-style:none;display:grid;gap:4px}
.rank-list li{display:flex;align-items:center;gap:12px;border-radius:var(--radius-sm);padding:9px 12px;background:rgba(255,255,255,.035);border:1px solid transparent;transition:.2s}
.rank-list li:hover{background:rgba(255,45,120,.08);border-color:rgba(255,45,120,.3);transform:translateX(4px)}
.rank-no{flex:0 0 28px;height:28px;border-radius:50%;background:rgba(255,255,255,.08);color:#CFC2E8;font-size:.8rem;font-weight:700;display:inline-flex;align-items:center;justify-content:center}
.rank-list li:nth-child(1) .rank-no{background:linear-gradient(135deg,#FFB86C,#FF2D78);color:#fff}
.rank-list li:nth-child(2) .rank-no{background:rgba(255,183,108,.2);color:#FFB86C}
.rank-list li:nth-child(3) .rank-no{background:rgba(196,181,253,.18);color:#C4B5FD}
.rank-link{flex:1;color:var(--text-high);font-weight:600;font-size:.92rem}
.rank-desc{font-size:.8rem;color:var(--text-muted);margin-right:8px}
.rank-right{flex:1 1 42%;position:relative;min-height:260px;overflow:hidden}
.rank-right img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease-out)}
.rank-lead-card:hover .rank-right img{transform:scale(1.04)}
.rank-right::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--bg-elev) 0%,transparent 45%)}
.rank-shield{position:absolute;bottom:26px;right:26px;background:rgba(11,7,17,.82);border:1px solid rgba(255,255,255,.22);backdrop-filter:blur(6px);border-radius:var(--radius-pill);padding:8px 16px;color:#fff;font-size:.78rem;z-index:2;display:flex;align-items:center;gap:7px}
/* ---- 分类卡片区 ---- */
.cat-grid-section{padding:40px 0 34px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.sec-head .mark-kicker{display:inline-flex;align-items:center;gap:8px;font-size:.74rem;color:var(--brand-primary);letter-spacing:.2em;font-weight:700;text-transform:uppercase}
.mark-kicker::before{content:"";width:8px;height:20px;border-radius:3px;background:var(--grad-main)}
.sec-head h2{font-size:1.35rem;margin:4px 0 0;color:var(--text-high);font-weight:800}
.sec-head .sec-tip{font-size:.85rem;color:var(--text-muted)}
.cat-card{height:100%;background:var(--bg-elev);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);overflow:hidden;transition:transform .35s var(--ease-out),border-color .25s,box-shadow .35s}
.cat-card:hover{transform:translateY(-6px);border-color:rgba(255,45,120,.35);box-shadow:var(--shadow-card-hover)}
.cat-cover{position:relative;height:122px;overflow:hidden;background:#160F24}
.cat-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease-out)}
.cat-card:hover .cat-cover img{transform:scale(1.07)}
.cat-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,7,17,.06) 0%,rgba(11,7,17,.75) 100%)}
.index-badge{position:absolute;left:12px;top:12px;z-index:2;width:30px;height:30px;border-radius:9px;background:rgba(11,7,17,.76);border:1px solid rgba(255,255,255,.2);color:#fff;font-size:.76rem;font-weight:800;display:inline-flex;align-items:center;justify-content:center;backdrop-filter:blur(4px)}
.top-flag{position:absolute;right:12px;top:12px;z-index:2;background:rgba(255,184,108,.18);color:#FFD9AD;border:1px solid rgba(255,184,108,.45);backdrop-filter:blur(4px);font-size:.68rem;font-weight:700;border-radius:var(--radius-pill);padding:3px 9px}
.new-flag{background:rgba(52,211,153,.14);color:#86EFBD;border-color:rgba(52,211,153,.4)}
.good-flag{background:rgba(139,92,246,.2);color:#CDBCFF;border-color:rgba(139,92,246,.5)}
.cat-card-body{padding:14px 15px 15px}
.cat-card-body h3{margin:0 0 6px;font-size:.97rem;font-weight:700;color:var(--text-high)}
.cat-card-body h3 a{color:var(--text-high)}
.cat-card-body h3 a:hover{color:var(--brand-primary)}
.cat-card-body p{margin:0;font-size:.78rem;color:#8D83A0;line-height:1.65}
.cat-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:11px;padding-top:11px;border-top:1px solid rgba(255,255,255,.06)}
.cat-count{display:inline-flex;align-items:center;gap:5px;font-size:.74rem;color:#B5A9CB;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);padding:3px 10px;border-radius:var(--radius-pill)}
.cat-count i{color:var(--success)}
.direct-link{color:#D2C5EA;font-size:.75rem;font-weight:600;display:inline-flex;align-items:center;gap:4px;transition:.2s}
.direct-link:hover{color:#fff;gap:7px}
.more-line{display:flex;justify-content:center;margin:32px 0 8px}
/* ---- SEO 辅助文本 ---- */
.seo-info-area{padding:42px 0;background:linear-gradient(180deg,transparent,rgba(255,45,102,.03) 40%,transparent)}
.seo-info-panel{max-width:90ch;line-height:1.9}
.seo-two-col{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.seo-block{background:var(--bg-elev);border:1px solid rgba(255,255,255,.07);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-card)}
.seo-block h2{margin:0 0 8px;font-size:1.1rem;line-height:1.45;color:var(--text-high);font-weight:700}
.seo-block h2 i{color:var(--brand-primary);margin-right:6px}
.seo-block p{font-size:.9rem;color:#B4A9C5}
.seo-block .minor-legal{color:var(--text-muted);font-size:.78rem;border-left:3px solid rgba(255,255,255,.12);padding-left:12px}
/* ---- 横向推荐 ---- */
.other-scroll{padding-top:22px;position:relative}
.scroll-hint{font-size:.78rem;color:var(--text-muted);letter-spacing:.04em;display:flex;align-items:center;gap:8px}
.scroll-track{display:flex;gap:14px;overflow-x:auto;scrollbar-width:none;padding:16px 2px 22px;margin:0 -12px}
.scroll-track::-webkit-scrollbar{display:none}
.scroll-track::before,.scroll-track::after{content:"";flex:0 0 2px}
.scroll-card{flex:0 0 224px;background:var(--bg-elev);border:1px solid rgba(255,255,255,.09);border-radius:var(--radius-md);overflow:hidden;transition:.25s var(--ease-out)}
.scroll-card:hover{transform:translateY(-5px);border-color:rgba(255,45,120,.4)}
.scroll-card .thumb{height:96px;overflow:hidden;position:relative;background:#171022}
.scroll-card .thumb img{width:100%;height:100%;object-fit:cover}
.scroll-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(11,7,17,.3))}
.scroll-card .body{padding:11px 12px 13px}
.scroll-card .body strong{display:block;font-size:.86rem;color:var(--text-high);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.scroll-card .body span{font-size:.73rem;color:#87809B}
.fade-wrap{position:relative}
.fade-wrap::before,.fade-wrap::after{content:"";position:absolute;top:0;bottom:0;width:32px;z-index:2;pointer-events:none}
.fade-wrap::before{left:0;background:linear-gradient(90deg,var(--bg-base),transparent)}
.fade-wrap::after{right:0;background:linear-gradient(270deg,var(--bg-base),transparent)}
/* ---- 底部 CTA ---- */
.final-cta{padding:54px 0 64px;position:relative}
.final-cta::before{content:"";position:absolute;left:50%;top:40%;transform:translate(-50%,-50%);width:480px;height:300px;border-radius:50%;background:radial-gradient(closest-side,rgba(255,45,120,.2),transparent);filter:blur(40px);pointer-events:none}
.cta-inner{position:relative;text-align:center;max-width:720px;margin:0 auto;background:var(--bg-elev);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-lg);padding:38px 30px;box-shadow:var(--shadow-card)}
.cta-inner h2{color:var(--text-high);font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:800;letter-spacing:-.02em;margin-bottom:12px}
.cta-inner p{color:var(--text-body);max-width:56ch;margin:0 auto 24px}
/* ---- 页脚 ---- */
.site-footer{background:#0D0913;border-top:1px solid rgba(255,255,255,.08);padding:48px 0 24px;margin-top:24px}
.site-footer h4{font-size:.86rem;color:var(--text-high);font-weight:800;letter-spacing:.08em;margin-bottom:16px}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:9px}
.footer-links a{font-size:.85rem;color:#807796}
.footer-links a:hover{color:var(--brand-primary)}
.legal-line{font-size:.76rem;color:#6E6680;border-left:3px solid rgba(255,255,255,.14);padding-left:12px;margin-top:10px}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;border-top:1px solid rgba(255,255,255,.07);margin-top:28px;padding-top:18px;font-size:.76rem;color:#675F78}
/* ---- 响应式 ---- */
@media (max-width:991.98px){
 .navbar-collapse{padding:12px 0;border-top:1px solid rgba(255,255,255,.06);margin-top:8px}
 .navbar-toggler{border:1px solid rgba(255,255,255,.16);border-radius:10px;color:#fff;background:rgba(255,255,255,.05)}
 .navbar-toggler:focus{box-shadow:0 0 0 3px rgba(255,45,120,.25)}
 .navbar-toggler-icon{background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e")}
 .step-guide{overflow:hidden}
 .step-list{justify-content:flex-start;overflow-x:auto;flex-wrap:nowrap;padding:.55rem 0}
 .step-item{flex:0 0 auto}
 .step-item+.step-item::before{display:none}
 .filter-wrap{top:96px}
 .rank-lead-card{flex-direction:column}
 .rank-right{min-height:230px;border-top:1px solid rgba(255,255,255,.08)}
 .seo-two-col{grid-template-columns:1fr}
 .cat-head-stats{gap:10px}
}
@media (max-width:767.98px){
 .cat-title-wrap{padding-top:4px}
 .section-spacer{padding:42px 0}
 .sec-title{font-size:1.5rem}
 .filter-wrap{position:static;margin:0 0 12px}
 .toolbar-search{min-width:100%}
 .cat-side-float{margin-top:18px}
 .rank-lead-body{padding:1.25rem}
 .scroll-card{flex-basis:198px}
}
@media (max-width:575.98px){
 body{font-size:15px}
 .navbar-brand.brand-mark{font-size:1.18rem}
 .site-nav-link{padding:.55rem 0;display:inline-block}
 .crumb a,.crumb span{margin-right:7px}
 .cat-desc{font-size:.92rem}
 .rank-number{width:44px;height:44px;font-size:1rem}
 .rank-list li{flex-wrap:wrap}
 .rank-desc{display:none}
 .cat-cover{height:116px}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}