/* roulang page: index */
:root{
  --bg-deep:#0d0b14;
  --bg-elev:#16121f;
  --surface-glass:rgba(255,255,255,.04);
  --border-light:rgba(255,255,255,.08);
  --primary:#b7f542;
  --primary-hover:#b4ee3d;
  --secondary:#c77dff;
  --accent:#ffb86b;
  --safe:#66e0a3;
  --text-hi:#f2edf8;
  --text-mid:rgba(240,235,250,.64);
  --text-low:rgba(240,235,250,.38);
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:10px;
  --container-w:1180px;
  --section-space:96px;
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  --font-num:Inter,system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg-deep);color:var(--text-hi);font-family:var(--font-main);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:var(--primary)}
p{margin:0 0 1rem}
.container{max-width:var(--container-w);padding-left:24px;padding-right:24px}
::selection{background:rgba(183,245,66,.4);color:#0d0b14}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border-radius:12px;font-weight:600;padding:.72rem 1.35rem;transition:all .2s ease;border:1px solid transparent}
.btn-primary{background:var(--primary);color:#0d0b14;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-hover);color:#0d0b14;transform:translateY(-2px);box-shadow:0 8px 24px rgba(183,245,66,.18)}
.btn-outline-light{background:transparent;color:var(--text-hi);border:1px solid rgba(255,255,255,.22)}
.btn-outline-light:hover{border-color:var(--primary);color:var(--primary);background:rgba(183,245,66,.06)}
.navbar-wrap{position:fixed;top:0;left:0;width:100%;z-index:1080;background:rgba(13,11,20,.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.06)}
.navbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:72px;padding:0 24px}
.logo-text{font-size:1.28rem;letter-spacing:.08em;font-weight:300;color:var(--text-hi)}
.logo-text strong{font-weight:800;color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:48px;list-style:none;margin:0;padding:0}
.nav-links a{font-size:.95rem;color:var(--text-mid);padding:.4rem .1rem;position:relative;transition:color .2s}
.nav-links a:hover,.nav-links a:focus{color:var(--text-hi)}
.nav-links a:after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:linear-gradient(90deg,var(--primary),var(--secondary));transition:width .25s ease}
.nav-links a:hover:after,.nav-links a.active:after{width:100%}
.nav-links a.active,body[data-page] a.active{color:var(--primary)}
.nav-cta{background:transparent;border:1px solid var(--primary);color:var(--primary);padding:.46rem 1.15rem;border-radius:999px;font-size:.9rem;font-weight:600;transition:all .2s}
.nav-cta:hover{background:var(--primary);color:#0d0b14}
.nav-toggle{display:none;background:none;border:0;color:var(--text-hi);font-size:1.7rem;cursor:pointer;line-height:1}
.hero{position:relative;padding:172px 0 110px;overflow:hidden;background:radial-gradient(circle at 78% 20%,rgba(199,125,255,.28),transparent 40%),radial-gradient(circle at 15% 85%,rgba(183,245,66,.12),transparent 34%)}
.hero-bg{position:absolute;inset:0;z-index:-2;background-image:url('/assets/images/backpic/back-1.jpg');background-size:cover;background-position:center 30%}
.hero-bg:after{content:"";position:absolute;inset:0;background:linear-gradient(113deg,rgba(13,11,20,.95) 35%,rgba(13,11,20,.78) 70%,rgba(13,11,20,.55))}
.eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--secondary);text-transform:uppercase;letter-spacing:.12em;font-size:.78rem;font-weight:600;margin-bottom:1.6rem}
.eyebrow:before{content:"";width:22px;height:1px;background:var(--secondary)}
.hero h1{font-size:clamp(2.05rem,5vw,3.55rem);font-weight:800;line-height:1.23;letter-spacing:-.02em;margin:0 0 1.5rem}
.hero h1 .txt-pulse{color:var(--primary)}
.hero-lead{font-size:1.08rem;color:var(--text-mid);max-width:600px;line-height:1.9}
.hero-meta{display:flex;gap:2rem;flex-wrap:wrap;margin-top:2.6rem;align-items:center}
.price-tag{color:var(--text-low);font-size:.85rem}
.price-tag b{color:var(--primary);font-weight:700}
.hero-cardstack{position:relative;z-index:1}
.hero-card{background:rgba(22,18,31,.7);border:1px solid rgba(255,255,255,.09);border-radius:var(--radius-lg);padding:1.8rem 1.6rem;backdrop-filter:blur(12px)}
.blob{position:absolute;border-radius:50%;filter:blur(48px);z-index:-1}
.blob-lime{width:180px;height:180px;background:rgba(183,245,66,.18);top:-54px;right:-20px}
.blob-violet{width:120px;height:120px;background:rgba(199,125,255,.2);bottom:-36px;left:-28px}
.hero-chip{font-size:.82rem;font-weight:700;color:var(--bg-deep);background:var(--primary);border-radius:999px;padding:.3rem .7rem;letter-spacing:.03em}
.hero-feature{display:flex;gap:1rem;align-items:flex-start;padding:1rem 0;border-bottom:1px solid rgba(255,255,255,.06)}
.hero-feature:last-child{border-bottom:0;padding-bottom:.2rem}
.hero-feature i{color:var(--secondary);font-size:1.25rem}
.hero-feature small{color:var(--text-mid);line-height:1.6}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--safe);display:inline-block;margin-right:8px;box-shadow:0 0 10px var(--safe)}
.section{padding:var(--section-space) 0}
.section-tight{padding-top:72px;padding-bottom:72px}
.chap-tag{display:block;color:var(--accent);letter-spacing:.1em;font-size:.8rem;margin-bottom:.6rem;font-weight:600}
.section-title{font-size:clamp(1.8rem,3.6vw,2.55rem);font-weight:800;letter-spacing:-.02em}
.section-desc{color:var(--text-mid);max-width:700px;font-size:1.02rem}
.title-bar{width:40px;height:4px;background:var(--primary);border-radius:3px;margin:1.4rem 0 2rem}
.metric-card{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.07);border-radius:20px;padding:2rem 1.4rem;height:100%;transition:transform .25s,border .25s;text-align:center}
.metric-card:hover{border-color:rgba(183,245,66,.4);transform:translateY(-6px)}
.metric-value{font-family:var(--font-num);font-size:2.6rem;font-weight:700;letter-spacing:-.04em;color:var(--primary);line-height:1;margin-bottom:1rem}
.metric-line{width:28px;height:1px;background:rgba(255,255,255,.13);margin:0 auto 1rem}
.metric-label{color:var(--text-mid);font-size:.95rem;line-height:1.5}
.service-card{background:var(--bg-elev);border:1px solid rgba(255,255,255,.07);border-radius:var(--radius-md);padding:2rem;height:100%;position:relative;transition:border .25s,transform .25s}
.service-card:hover{border-color:rgba(199,125,255,.45);transform:translateY(-6px)}
.service-num{font-family:var(--font-num);color:var(--text-low);font-size:.85rem;letter-spacing:.08em;display:flex;gap:8px;align-items:center}
.service-num i{color:var(--secondary)}
.service-card h3{font-size:1.22rem;font-weight:700;margin:1.4rem 0 .8rem}
.service-card p{color:var(--text-mid);font-size:.95rem;line-height:1.85;margin-bottom:1.2rem}
.card-link{color:var(--primary);font-size:.92rem;font-weight:600}
.card-link i{transition:transform .2s}
.card-link:hover i{transform:translateX(5px);color:var(--accent)}
.compare-wrap{background:var(--bg-elev);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-lg);padding:2rem;height:100%}
.compare-wrap.old{opacity:.8;border-color:rgba(255,255,255,.1);transform:translateY(10px)}
.compare-wrap.new{background:linear-gradient(160deg,rgba(183,245,66,.09),rgba(22,18,31,.8) 45%);border-color:rgba(183,245,66,.3)}
.compare-title{font-size:1.05rem;font-weight:700;display:flex;align-items:center;gap:14px;margin-bottom:1.3rem}
.compare-title .icon-square{width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.08);display:inline-flex;align-items:center;justify-content:center}
.old .compare-title .icon-square{color:var(--text-low)}
.new .compare-title .icon-square{background:rgba(183,245,66,.15);color:var(--primary)}
.compare-item{color:var(--text-mid);font-size:.95rem;line-height:1.7;position:relative;padding-left:20px;margin-bottom:1.2rem}
.compare-item:before{content:"×";color:var(--text-low);position:absolute;left:0;font-weight:300}
.new .compare-item:before{content:"✓";color:var(--primary);left:0}
.spec-key{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.07);border-radius:var(--radius-md);padding:1.6rem 1.6rem;height:100%;display:flex;gap:1.2rem}
.spec-key i{font-size:1.6rem;color:var(--secondary);flex:0 0 auto}
.spec-key h4{font-size:1rem;margin-bottom:.5rem}
.spec-key p{color:var(--text-mid);font-size:.9rem;margin:0}
.spec-row{margin-top:1.6rem}
.spec-table{border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-md);overflow:hidden}
.spec-table .colhead,.spec-table .colrow{display:grid;grid-template-columns:1fr 2.2fr;border-bottom:1px solid rgba(255,255,255,.06)}
.spec-table .colhead{background:rgba(255,255,255,.04)}
.spec-table .colhead div{padding:.9rem 1.2rem;color:var(--text-mid);font-size:.83rem;letter-spacing:.05em}
.spec-table .colrow:last-child{border-bottom:0}
.spec-table .colrow div{padding:1rem 1.2rem;color:var(--text-hi);font-size:.95rem}
.spec-table .colrow div:first-child{color:var(--primary);font-weight:600}
.news-row-outer{background:var(--bg-elev);border-radius:var(--radius-lg);border:1px solid rgba(255,255,255,.07)}
.news-list a{display:block;padding:1.1rem 1.3rem;border-bottom:1px solid rgba(255,255,255,.05);transition:background .2s}
.news-list a:last-child{border-bottom:0}
.news-list a:hover{background:rgba(183,245,66,.06)}
.news-title{font-size:1rem;font-weight:600;color:var(--text-hi);margin-bottom:.25rem;display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:baseline}
.news-title .no{font-family:var(--font-num);color:var(--text-low);font-size:.85rem}
.news-meta{color:var(--text-low);font-size:.82rem;display:flex;gap:20px;margin-left:42px}
.news-tag{color:var(--primary);font-size:.78rem;border:1px solid rgba(183,245,66,.3);border-radius:99px;padding:.1rem .55rem;margin-left:auto}
.right-card{margin-bottom:1.4rem;border-radius:var(--radius-md);overflow:hidden;border:1px solid rgba(255,255,255,.07)}
.right-card img{height:178px;object-fit:cover;width:100%}
.right-content{background:var(--bg-elev);padding:1rem 1.2rem}
.right-content h4{font-size:1rem;margin:.3rem 0 .3rem;font-weight:600}
.right-content .more-arrow{color:var(--primary);font-size:.88rem}
.update-block .up-item{display:flex;flex-wrap:wrap;gap:14px;padding:1.1rem 0;border-bottom:1px solid rgba(255,255,255,.06);align-items:center}
.update-block .up-item:last-child{border-bottom:0}
.up-time{min-width:110px;color:var(--secondary);font-family:var(--font-num);font-size:.9rem}
.up-state{font-size:.78rem;border-radius:999px;padding:.28rem .78rem;border:1px solid rgba(102,224,163,.3);color:var(--safe)}
.up-name{color:var(--text-hi);font-weight:600;flex:1 1 auto}
.up-arrow{color:var(--text-low)}
.update-panel{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.07);border-radius:var(--radius-md);padding:0 1.4rem}
.faq-outer{max-width:860px}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--border-light)}
.accordion-button{background:transparent;color:var(--text-hi);font-size:1.05rem;font-weight:600;padding:1.3rem .3rem;box-shadow:none}
.accordion-button:focus{box-shadow:none;border:0}
.accordion-button:not(.collapsed){background:transparent;color:var(--primary);box-shadow:none}
.accordion-button::after{filter:invert(70%) sepia(40%) saturate(500%) hue-rotate(40deg)}
.accordion-body{padding:.6rem 2.5rem 1.3rem .3rem;color:var(--text-mid);line-height:1.85}
.form-wrap{background:var(--bg-elev);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-lg);padding:2.6rem}
.form-label{color:var(--text-mid);font-size:.9rem;font-weight:600;margin-bottom:.4rem}
.form-control,.form-select{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:12px;color:var(--text-hi);padding:.8rem 1rem}
.form-control:focus,.form-select:focus{background:rgba(255,255,255,.06);color:var(--text-hi);border-color:var(--primary);box-shadow:0 0 0 3px rgba(183,245,66,.12);outline:0}
.form-control::placeholder{color:var(--text-low)}
.form-select option{background:var(--bg-elev)}
.form-note{color:var(--text-low);font-size:.82rem;margin-top:.8rem;display:flex;align-items:center;gap:6px}
.lead-note{color:var(--text-mid);font-size:.95rem;margin:.6rem 0 2rem}
.safe-list{display:flex;gap:10px;align-items:flex-start;margin-bottom:1rem;color:var(--text-mid);font-size:.92rem}
.safe-list i{color:var(--safe);margin-top:4px}
.footer{background:#0a0811;border-top:1px solid rgba(255,255,255,.06);padding:70px 0 28px}
.footer .border-soft{border-top:1px solid rgba(255,255,255,.06);padding-top:2rem;margin-top:3rem}
.footer .text-muted{color:var(--text-mid)!important;font-size:.9rem}
.footer h5{color:var(--text-hi);font-size:.95rem;letter-spacing:.06em}
.footer-link{display:block;color:var(--text-mid);margin-bottom:.75rem;font-size:.9rem;transition:color .2s,padding-left .2s}
.footer-link:hover{color:var(--primary);padding-left:5px}
.social-row a{display:inline-flex;width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.12);color:var(--text-mid);align-items:center;justify-content:center;margin-right:.7rem;transition:all .2s}
.social-row a:hover{color:#0d0b14;background:var(--primary);border-color:var(--primary)}
.backtop{position:fixed;right:20px;bottom:20px;width:44px;height:44px;border-radius:50%;background:var(--primary);color:#0d0b14;display:flex;align-items:center;justify-content:center;z-index:100;box-shadow:0 8px 26px rgba(183,245,66,.25);transition:all .25s}
.backtop:hover{background:var(--secondary);color:#0d0b14}
.mobile-menu{display:none}
@media(max-width:991px){
:root{--section-space:72px}
.nav-links{gap:28px}
.hero{padding-top:140px}
.right-column{margin-top:2rem}
}
@media(max-width:767px){
.navbar-inner{min-height:64px;padding:0 16px}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px}
.nav-links-wrap{position:fixed;top:0;right:-100%;width:78%;max-width:320px;height:100vh;background:#0a0811;border-left:1px solid rgba(255,255,255,.08);padding:4rem 2rem;transition:right .3s ease;display:block;z-index:1090}
.nav-links-wrap.show{right:0}
.nav-links{flex-direction:column;align-items:flex-start;gap:26px}
.nav-links a{font-size:1.1rem;color:var(--text-hi)}
.mobile-menu{display:flex}
.mobile-close{position:absolute;top:20px;right:20px;background:none;border:0;color:var(--text-hi);font-size:1.15rem}
.hero{padding:126px 0 72px}
.hero h1{line-height:1.3}
.hero-card{margin-top:2.5rem}
.metric-card{padding:1.75rem 1rem}
.metric-value{font-size:2.2rem}
.service-card{padding:1.5rem}
.section-title{font-size:1.7rem}
.compare-wrap.old{transform:none}
.spec-table .colhead,.spec-table .colrow{grid-template-columns:1fr 2fr}
.news-title{grid-template-columns:1fr}
.news-meta{margin-left:0;gap:10px}
.up-item{flex-direction:column;gap:8px;align-items:flex-start}
.form-wrap{padding:1.6rem}
.footer{padding-bottom:20px}
}
@media(max-width:575px){
.container{padding-left:18px;padding-right:18px}
body{font-size:15px}
.nav-cta{display:none}
.hero-title{font-size:clamp(1.65rem,7vw,2.25rem)}
.btn-full-mobile{width:100%}
.metric-card{margin-bottom:1rem}
}

/* roulang page: category1 */
:root{
  --bg-deep:#0d0b14;
  --bg-elev:#16121f;
  --surface-glass:rgba(255,255,255,.04);
  --border-light:rgba(255,255,255,.08);
  --primary:#b7f542;
  --primary-hover:#b4ee3d;
  --secondary:#c77dff;
  --accent:#ffb86b;
  --safe:#66e0a3;
  --text-hi:#f2edf8;
  --text-mid:rgba(240,235,250,.64);
  --text-low:rgba(240,235,250,.38);
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:10px;
  --container-w:1180px;
  --section-space:72px;
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  --font-num:Inter,system-ui,sans-serif;
}
html{scroll-behavior:smooth}
section[id]{scroll-margin-top:92px}
body{
  margin:0;
  background:var(--bg-deep);
  color:var(--text-hi);
  font-family:var(--font-main);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:var(--primary)}
.container{max-width:var(--container-w);padding-left:24px;padding-right:24px}
.text-muted{color:var(--text-mid)!important}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border-radius:12px;font-weight:600;padding:.72rem 1.35rem;transition:all .2s ease;border:1px solid transparent;font-family:var(--font-main)}
.btn-primary{background:var(--primary);color:#0d0b14;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-hover);color:#0d0b14;transform:translateY(-2px);box-shadow:0 8px 24px rgba(183,245,66,.18)}
.btn-outline-light{background:transparent;color:var(--text-hi);border:1px solid rgba(255,255,255,.22)}
.btn-outline-light:hover{border-color:var(--primary);color:var(--primary);background:rgba(183,245,66,.06)}
.btn-lg{padding:.9rem 1.8rem;font-size:1rem}
.navbar-wrap{
  position:fixed;top:0;left:0;width:100%;z-index:1080;
  background:rgba(13,11,20,.78);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.navbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:72px;padding:0 24px}
.logo-text{font-size:1.28rem;letter-spacing:.08em;font-weight:300;color:var(--text-hi)}
.logo-text strong{font-weight:800;color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:48px;list-style:none;margin:0;padding:0}
.nav-links a{font-size:.95rem;color:var(--text-mid);padding:.4rem .1rem;position:relative;transition:color .2s}
.nav-links a:hover,.nav-links a:focus{color:var(--text-hi)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:linear-gradient(90deg,var(--primary),var(--secondary));transition:width .25s ease}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-links a.active{color:var(--primary)}
.nav-cta{background:transparent;border:1px solid var(--primary);color:var(--primary);padding:.46rem 1.15rem;border-radius:999px;font-size:.9rem;font-weight:600;transition:all .2s}
.nav-cta:hover{background:var(--primary);color:#0d0b14}
.nav-toggle{display:none;background:none;border:0;color:var(--text-hi);font-size:1.7rem;cursor:pointer;line-height:1}
.mobile-collapse{background:rgba(13,11,20,.97);border-top:1px solid rgba(255,255,255,.06)}
.mobile-panel{padding:1rem 1.25rem 1.4rem}
.mobile-link{display:block;padding:.55rem .25rem;color:var(--text-mid);font-size:1rem}
.mobile-link.active,.mobile-link:hover{color:var(--primary)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--secondary);text-transform:uppercase;letter-spacing:.12em;font-size:.78rem;font-weight:600;margin-bottom:1.6rem}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--secondary)}
.chap-tag{display:block;color:var(--accent);letter-spacing:.1em;font-size:.8rem;margin-bottom:.6rem;font-weight:600}
.section{padding:var(--section-space) 0}
.section-tight{padding-top:64px;padding-bottom:64px}
.section-title{font-size:clamp(1.75rem,3.6vw,2.45rem);font-weight:800;letter-spacing:-.02em;line-height:1.3}
.section-desc{color:var(--text-mid);max-width:700px;font-size:1.02rem}
.title-bar{width:40px;height:4px;background:var(--primary);border-radius:3px;margin:1.4rem 0 2rem}
.lead-para{color:var(--text-mid);font-size:1.06rem;line-height:1.95}
.badge-soft{display:inline-block;border:1px solid rgba(255,255,255,.14);color:var(--text-mid);border-radius:999px;padding:.22rem .8rem;font-size:.8rem;letter-spacing:.04em;background:rgba(255,255,255,.03)}
.text-link{color:var(--primary);font-weight:600;font-size:.95rem;display:inline-flex;align-items:center;gap:.4rem;transition:gap .2s}
.text-link:hover{color:var(--primary);gap:.65rem}
/* —— category hero —— */
.cat-hero{
  position:relative;
  padding:158px 0 76px;
  overflow:hidden;
  background:
    radial-gradient(circle at 85% 25%,rgba(199,125,255,.26),transparent 36%),
    radial-gradient(circle at 12% 78%,rgba(183,245,66,.12),transparent 30%),
    var(--bg-deep);
}
.cat-hero-bg{
  position:absolute;inset:0;z-index:-1;
  background-size:cover;background-position:center 38%;
}
.cat-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(110deg,rgba(13,11,20,.96) 42%,rgba(13,11,20,.8) 74%,rgba(13,11,20,.52));
}
.cat-hero h1{
  font-size:clamp(1.9rem,4.4vw,3rem);
  font-weight:800;line-height:1.26;letter-spacing:-.02em;margin:0 0 1.2rem;
  max-width:820px;
}
.cat-hero h1 .highlight{color:var(--primary)}
.cat-hero-lead{
  color:var(--text-mid);font-size:1.08rem;line-height:1.9;
  max-width:660px;margin:0;
}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:.9rem;margin-top:2.2rem}
.cat-hero .hero-note{
  display:inline-flex;align-items:center;gap:.6rem;
  margin-top:2rem;color:var(--text-low);font-size:.86rem;
}
.cat-hero .hero-note i{color:var(--secondary)}
/* —— 摘要板块 —— */
.intro-block{
  background:var(--bg-deep);
}
.stat-card{
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.07);
  border-radius:20px;
  padding:1.6rem 1.2rem 1.5rem;
  height:100%;
  transition:transform .25s,border-color .25s;
}
.stat-card:hover{border-color:rgba(183,245,66,.38);transform:translateY(-5px)}
.stat-card strong{
  display:block;font-size:2.1rem;font-weight:800;color:var(--primary);
  font-family:var(--font-num);line-height:1.2;letter-spacing:-.02em;
}
.stat-card strong em{font-style:normal;font-size:1.35rem;vertical-align:baseline;color:var(--secondary)}
.stat-card span{color:var(--text-mid);font-size:.9rem;display:block;margin-top:.45rem}
/* —— 玩法模块 —— */
.method-area{background:#0a0810;border-top:1px solid rgba(255,255,255,.04);border-bottom:1px solid rgba(255,255,255,.04)}
.method-card{
  background:var(--bg-elev);
  border:1px solid rgba(255,255,255,.07);
  border-radius:var(--radius-md);
  padding:1.7rem;
  height:100%;
  display:flex;
  gap:1.25rem;
  align-items:flex-start;
  transition:border-color .25s,transform .25s,background .25s;
}
.method-card:hover{border-color:rgba(199,125,255,.45);transform:translateY(-5px);background:#1a1426}
.method-num{
  font-family:var(--font-num);font-size:1.75rem;font-weight:800;
  color:var(--primary);line-height:1;min-width:48px;
}
.method-main h3{font-size:1.2rem;font-weight:700;margin:0 0 .5rem}
.method-main p{color:var(--text-mid);font-size:.94rem;line-height:1.85;margin:0}
.method-area .head-meta-link{margin-top:.8rem}
/* —— 示例对话条 —— */
.quote-panel{background:#0a0810}
.quote-box{
  background:linear-gradient(135deg,rgba(22,18,31,.98),rgba(38,28,52,.9));
  border:1px solid rgba(199,125,255,.22);
  border-radius:var(--radius-lg);
  padding:2rem 2.2rem;
  position:relative;
  overflow:hidden;
}
.quote-box::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,var(--primary),var(--secondary));
}
.quote-box i{
  position:absolute;right:1.4rem;top:1.2rem;font-size:3.2rem;color:rgba(183,245,66,.12);
}
.quote-text{font-size:1.12rem;line-height:1.9;color:var(--text-hi);margin-bottom:.5rem;max-width:90%}
.quote-source{color:var(--text-low);font-size:.85rem;letter-spacing:.05em}
/* —— 场景自测 —— */
.scenario-area{background:var(--bg-deep)}
.cover-photo{
  border-radius:var(--radius-lg);
  object-fit:cover;width:100%;aspect-ratio:4/5;
  border:1px solid rgba(255,255,255,.08);
}
.scenario-img-wrap{position:relative}
.scenario-float{
  position:absolute;left:-12px;bottom:-14px;z-index:2;
  background:rgba(22,18,31,.92);
  border:1px solid rgba(183,245,66,.32);
  backdrop-filter:blur(8px);
  border-radius:16px;
  padding:.9rem 1.1rem;
  max-width:250px;
  font-size:.88rem;
  color:var(--text-mid);
  line-height:1.6;
}
.scenario-float strong{color:var(--primary);font-weight:700}
.scenario-list{list-style:none;padding:0;margin:1.6rem 0 0}
.scenario-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:1rem 0;border-bottom:1px solid rgba(255,255,255,.06);
}
.scenario-list li:last-child{border-bottom:0}
.scenario-list i{
  color:var(--secondary);font-size:1.2rem;line-height:1.8;
}
.scenario-list h4{font-size:1.02rem;font-weight:700;margin:0 0 .15rem}
.scenario-list p{color:var(--text-mid);font-size:.9rem;line-height:1.7;margin:0}
/* —— 四步走 —— */
.flow-area{background:radial-gradient(circle at 15% 20%,rgba(183,245,66,.05),transparent 30%),var(--bg-deep)}
.flow-intro p{color:var(--text-mid);font-size:1rem}
.step-list{margin:0;padding:0;list-style:none;position:relative}
.step-list::before{
  content:"";position:absolute;left:34px;top:20px;bottom:20px;
  width:1px;background:linear-gradient(180deg,var(--primary),rgba(199,125,255,.5),transparent);
}
.step-item{
  position:relative;
  display:flex;
  gap:1.2rem;
  align-items:flex-start;
  padding:1rem 0;
}
.step-num{
  width:70px;height:70px;flex:none;
  background:var(--bg-elev);
  border:1px solid rgba(255,255,255,.12);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:1.25rem;font-weight:800;color:var(--primary);
  font-family:var(--font-num);
  z-index:1;
}
.step-content{padding-top:.4rem}
.step-content h4{font-size:1.1rem;font-weight:700;margin:0 0 .3rem}
.step-content p{color:var(--text-mid);font-size:.92rem;line-height:1.85;margin:0;max-width:520px}
/* —— 对比区 —— */
.compare-area{background:#0a0810;border-top:1px solid rgba(255,255,255,.04)}
.compare-card{
  border-radius:var(--radius-lg);
  padding:2rem 1.8rem;
  height:100%;
  border:1px solid rgba(255,255,255,.08);
}
.compare-old{background:rgba(255,255,255,.02)}
.compare-new{
  background:linear-gradient(140deg,rgba(22,18,31,.96),rgba(31,26,46,.92));
  border-color:rgba(183,245,66,.28);
  position:relative;
}
.compare-kicker{
  display:inline-block;
  font-size:.8rem;
  font-weight:700;
  letter-spacing:.06em;
  margin-bottom:1.2rem;
  border-radius:999px;
  padding:.3rem .9rem;
  border:1px solid;
}
.compare-old .compare-kicker{color:var(--text-low);border-color:rgba(255,255,255,.14)}
.compare-new .compare-kicker{color:var(--primary);border-color:rgba(183,245,66,.4)}
.compare-card h3{font-size:1.35rem;font-weight:800;margin-bottom:.9rem}
.compare-card p{color:var(--text-mid);font-size:.95rem;line-height:1.9}
.compare-list{list-style:none;margin:1.2rem 0 0;padding:0}
.compare-list li{
  position:relative;
  padding-left:1.8rem;
  color:var(--text-mid);
  font-size:.93rem;
  margin-bottom:.8rem;
  line-height:1.7;
}
.compare-old .compare-list li::before{
  content:"×";
  position:absolute;left:0;top:-1px;
  color:var(--text-low);
  font-family:var(--font-num);
  font-weight:700;
}
.compare-new .compare-list li::before{
  content:"✓";
  position:absolute;left:0;top:-2px;
  color:var(--primary);
  font-family:var(--font-num);
  font-weight:800;
}
/* —— FAQ —— */
.faq-area{background:var(--bg-deep)}
.faq-area .accent-line{color:var(--text-low);font-size:.9rem;max-width:480px}
.faq-accordion .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid rgba(255,255,255,.08);
  border-radius:0!important;
}
.faq-accordion .accordion-button{
  background:transparent;
  color:var(--text-hi);
  font-size:1.08rem;
  font-weight:700;
  padding:1.35rem .4rem;
  box-shadow:none;
  font-family:var(--font-main);
  border:0;
}
.faq-accordion .accordion-button::after{
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23b7f542'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
  transition:transform .25s;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--primary);
  background:transparent;
}
.faq-accordion .accordion-button:focus{
  box-shadow:none;
  border:0;
}
.faq-accordion .accordion-body{
  color:var(--text-mid);
  padding:.2rem 1.2rem 1.5rem .4rem;
  font-size:.96rem;
  line-height:1.9;
  max-width:760px;
}
/* —— CTA —— */
.cat-cta{
  background:#0a0810;
  border-top:1px solid rgba(255,255,255,.05);
  padding-top:72px;
  padding-bottom:84px;
}
.cta-card{
  background:
    radial-gradient(circle at 90% 20%,rgba(199,125,255,.22),transparent 34%),
    radial-gradient(circle at 5% 90%,rgba(183,245,66,.1),transparent 28%),
    var(--bg-elev);
  border:1px solid rgba(255,255,255,.09);
  border-radius:var(--radius-lg);
  padding:2.6rem 2.2rem;
}
.cta-card h2{font-size:clamp(1.55rem,3vw,2.1rem);font-weight:800;line-height:1.35;margin-bottom:.5rem}
.cta-card p{color:var(--text-mid);font-size:1rem;margin:0}
.cta-card .btn-lg{white-space:nowrap}
/* —— Footer —— */
.footer{background:#08070d;border-top:1px solid rgba(255,255,255,.06);padding:64px 0 30px}
.footer h5{font-size:.95rem;font-weight:700;color:var(--text-hi);letter-spacing:.02em;margin-bottom:1rem}
.footer-link{display:block;color:var(--text-mid);font-size:.9rem;padding:.28rem 0;transition:color .2s}
.footer-link:hover{color:var(--primary)}
.social-row a{
  display:inline-flex;width:38px;height:38px;
  border:1px solid rgba(255,255,255,.12);
  border-radius:50%;
  align-items:center;justify-content:center;
  color:var(--text-mid);margin-right:.5rem;
  transition:all .2s;
}
.social-row a:hover{color:var(--primary);border-color:var(--primary);transform:translateY(-2px)}
.border-soft{border-top:1px solid rgba(255,255,255,.07);padding-top:1.5rem;margin-top:2.8rem}
/* —— responsive —— */
@media (max-width:991px){
  .navbar-inner{min-height:64px}
  .cat-hero{padding:128px 0 60px}
  .nav-links{gap:28px}
  .cat-hero-actions .btn{width:auto}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .cat-hero{padding:112px 0 52px}
  .cat-hero h1{font-size:1.9rem}
  .cat-hero-lead{font-size:1rem}
  .cat-hero-actions .btn{width:100%}
  .btn{width:100%}
  .quote-box{padding:1.6rem 1.3rem}
  .scenario-img-wrap{max-width:420px}
  .step-list::before{left:18px}
  .step-num{width:40px;height:40px;font-size:1rem;border-radius:50%}
  .step-item{gap:.75rem}
  .step-list::before{left:18px}
  .cta-card{padding:1.8rem 1.4rem}
  .cta-card .btn{width:100%;margin-top:1rem}
  .navbar-wrap .d-none.d-lg-flex{display:none!important}
  .nav-toggle{display:block}
}
@media (max-width:575px){
  body{font-size:15px}
  .section-title{font-size:1.55rem}
  .cat-hero h1{font-size:1.72rem}
  .title-bar{margin:1.2rem 0 1.6rem}
  .stat-card strong{font-size:1.7rem}
  .method-card{flex-direction:column;gap:.7rem;padding:1.4rem}
  .method-num{min-width:auto}
}

/* 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}