/* roulang page: index */
:root{
  --ink:#101215;
  --ink-2:#262A2E;
  --paper:#F6F5F1;
  --surface:#FFFFFF;
  --lime:#C8F535;
  --lime-deep:#A9D500;
  --ember:#FF4A1F;
  --muted:#6B7076;
  --line:#E3E2DC;
  --r-card:18px;
  --r-block:24px;
  --r-img:16px;
  --shadow-sm:0 2px 8px rgba(16,18,21,.05);
  --shadow-lg:0 18px 40px rgba(16,18,21,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul{padding:0;list-style:none}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1400px){.wrap{max-width:1280px}}
@media (max-width:767px){.wrap{padding:0 20px}}

/* ---------- 通用按钮 ---------- */
.btn-nx{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 28px;border-radius:999px;font-size:15px;font-weight:700;
  border:1.5px solid transparent;transition:all .18s var(--ease);
  white-space:nowrap;line-height:1.2;
}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:var(--lime-deep);transform:translateY(-1px);color:var(--ink)}
.btn-lime:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px)}
.btn-white{background:#fff;color:var(--ink)}
.btn-white:hover{background:var(--lime);color:var(--ink);transform:translateY(-1px)}
.btn-sm-nx{padding:9px 20px;font-size:14px}
.btn-link-nx{
  display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14px;
  color:var(--ink);background-image:linear-gradient(var(--ink),var(--ink));
  background-repeat:no-repeat;background-position:0 100%;background-size:0 1.5px;
  transition:background-size .22s var(--ease);padding-bottom:2px;
}
.btn-link-nx:hover{background-size:100% 1.5px;color:var(--ink)}
a:focus-visible,button:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px}

/* ---------- 公告条 ---------- */
.announce{background:var(--ink);color:#EDEDEA;font-size:13px;line-height:1.5}
.announce .wrap{display:flex;align-items:center;gap:12px;min-height:40px}
.dot-mark{width:7px;height:7px;background:var(--lime);border-radius:2px;flex:0 0 auto}
.announce-txt{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.announce-txt b{color:var(--lime);font-weight:700;font-variant-numeric:tabular-nums}
.announce-link{color:#EDEDEA;font-size:13px;white-space:nowrap;opacity:.85;transition:opacity .18s}
.announce-link:hover{opacity:1;color:var(--lime)}
.announce-close{background:none;border:0;color:#9AA0A6;font-size:16px;line-height:1;padding:4px 6px;border-radius:6px;transition:color .18s}
.announce-close:hover{color:#fff}
.announce.is-closed{display:none}

/* ---------- 导航 ---------- */
.site-head{position:sticky;top:0;z-index:1000;background:rgba(246,245,241,.93);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.site-head.is-scrolled{border-bottom-color:var(--line);box-shadow:0 2px 14px rgba(16,18,21,.07)}
.nav-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height .2s var(--ease)}
.site-head.is-scrolled .nav-inner{height:64px}
.brand{display:flex;align-items:baseline;gap:2px;font-weight:800;font-size:19px;letter-spacing:-.02em;white-space:nowrap}
.brand em{font-style:normal;color:var(--muted);font-weight:700;font-size:15px;letter-spacing:0}
.nav-links{display:flex;align-items:center;gap:26px;flex:1;justify-content:center}
.nav-links a{position:relative;font-size:15px;font-weight:600;color:var(--ink-2);padding:6px 0;transition:color .18s}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease)}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink);font-weight:800}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:12px;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:1.8px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:1.8px;background:var(--ink);transition:transform .2s var(--ease)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 移动抽屉 */
.drawer{position:fixed;inset:0;z-index:1200;background:var(--paper);padding:20px;display:none;flex-direction:column;gap:6px;overflow-y:auto}
.drawer.open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:12px;font-size:20px;line-height:1;color:var(--ink)}
.drawer a.dl{display:flex;justify-content:space-between;align-items:center;padding:16px 4px;font-size:17px;font-weight:700;border-bottom:1px solid var(--line)}
.drawer a.dl span{color:var(--muted);font-weight:500;font-size:13px}
.drawer-cta{display:flex;flex-direction:column;gap:12px;margin-top:24px}

/* ---------- Hero ---------- */
.hero{padding:64px 0 0}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--muted);text-transform:uppercase}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--lime)}
.hero h1{font-size:clamp(34px,5vw,60px);line-height:1.06;font-weight:900;letter-spacing:-.02em;margin-top:20px}
.hero h1 .hl{display:inline;background-image:linear-gradient(var(--lime),var(--lime));background-repeat:no-repeat;background-position:0 88%;background-size:100% .28em;padding-bottom:.06em}
.hero-sub{margin-top:20px;font-size:17px;color:var(--ink-2);max-width:30ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-note{margin-top:18px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.hero-visual{position:relative;border-radius:var(--r-block);overflow:hidden;aspect-ratio:4/3.2;background:var(--ink-2);box-shadow:var(--shadow-lg)}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(16,18,21,.10) 0%,rgba(16,18,21,.62) 100%)}
.hero-stat{position:absolute;right:0;bottom:0;z-index:2;background:rgba(16,18,21,.82);backdrop-filter:blur(6px);color:#fff;padding:18px 24px;border-top-left-radius:var(--r-card);display:flex;flex-direction:column;align-items:flex-end}
.hero-stat .num{font-size:clamp(30px,3.6vw,44px);font-weight:900;line-height:1;color:var(--lime);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.hero-stat .unit{font-size:12px;color:#C9CDD2;margin-top:6px;letter-spacing:.06em}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(12px);animation:rise .4s var(--ease) forwards}
.reveal:nth-child(1){animation-delay:.05s}
.reveal:nth-child(2){animation-delay:.11s}
.reveal:nth-child(3){animation-delay:.17s}
.reveal:nth-child(4){animation-delay:.23s}
.reveal:nth-child(5){animation-delay:.29s}
@keyframes rise{to{opacity:1;transform:translateY(0)}}

/* ---------- 指标条 ---------- */
.metrics{margin-top:56px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:26px 24px;border-left:1px solid var(--line)}
.metric:first-child{border-left:0;padding-left:0}
.metric .n{font-size:clamp(22px,2.4vw,30px);font-weight:900;letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.1}
.metric .l{font-size:13px;color:var(--muted);margin-top:6px}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head h2{font-size:clamp(26px,3.2vw,36px);font-weight:800;letter-spacing:-.015em;line-height:1.2}
.section-head p{font-size:15px;color:var(--muted);margin-top:10px;max-width:52ch}
@media (max-width:767px){.section{padding:56px 0}.section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}}

/* ---------- 入口网格 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:24px}
.entry-card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease)}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(16,18,21,.12)}
.entry-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--paper)}
.entry-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.entry-card:hover .entry-media img{transform:scale(1.03)}
.entry-badge{position:absolute;left:14px;top:14px;background:rgba(16,18,21,.86);color:#fff;font-size:12px;font-weight:700;padding:4px 10px;border-radius:6px;letter-spacing:.02em}
.entry-badge.hot{background:var(--ember)}
.entry-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.entry-body h3{font-size:17px;font-weight:800;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.entry-body p{font-size:13.5px;color:var(--muted);margin-top:8px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.entry-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.entry-arrow{width:32px;height:32px;border-radius:999px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--ink);transition:all .18s var(--ease);flex:0 0 auto}
.entry-card:hover .entry-arrow{background:var(--ink);color:var(--lime);border-color:var(--ink)}
.entry-lg{grid-column:span 4;grid-row:span 2}
.entry-lg .entry-media{aspect-ratio:16/9}
.entry-lg .entry-media img{height:100%}
.entry-lg .entry-body{padding:24px 26px 26px}
.entry-lg .entry-body h3{font-size:clamp(20px,2.2vw,26px);font-weight:900;letter-spacing:-.015em;-webkit-line-clamp:2}
.entry-lg .entry-body p{-webkit-line-clamp:2;font-size:14px;line-height:1.75;margin-top:10px}
.entry-md{grid-column:span 2}
.entry-sm{grid-column:span 2}
@media (max-width:991px){
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .entry-lg{grid-column:span 2;grid-row:auto}
  .entry-md,.entry-sm{grid-column:span 1}
}
@media (max-width:575px){
  .entry-grid{grid-template-columns:1fr}
  .entry-lg,.entry-md,.entry-sm{grid-column:span 1}
}

/* ---------- 使用反馈 ---------- */
.review-wrap{position:relative}
.review-track{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:6px;scrollbar-width:none}
.review-track::-webkit-scrollbar{display:none}
.review-card{flex:0 0 calc((100% - 48px)/3);scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;display:flex;flex-direction:column;transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.stars{color:var(--lime-deep);font-size:15px;letter-spacing:2px;line-height:1}
.review-txt{margin-top:14px;font-size:15px;line-height:1.75;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.review-user{display:flex;align-items:center;gap:10px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.avatar{width:34px;height:34px;border-radius:999px;background:var(--ink);color:var(--lime);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;flex:0 0 auto}
.review-user .nm{font-size:14px;font-weight:700}
.review-user .src{font-size:12px;color:var(--muted)}
.review-nav{display:flex;gap:10px}
.rv-btn{width:40px;height:40px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--ink);display:flex;align-items:center;justify-content:center;transition:all .18s var(--ease);font-size:15px}
.rv-btn:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.review-bars{display:flex;gap:6px;margin-top:22px}
.review-bars i{display:block;width:34px;height:3px;background:var(--line);border-radius:2px;transition:background .2s}
.review-bars i.on{background:var(--ink)}
@media (max-width:991px){.review-card{flex:0 0 calc((100% - 24px)/2)}}
@media (max-width:575px){.review-card{flex:0 0 100%}}

/* ---------- 保障条 ---------- */
.guard{background:var(--ink);color:#EDEDEA;padding:64px 0}
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.guard-item{padding:8px 28px;border-left:1px solid rgba(255,255,255,.13)}
.guard-item:first-child{border-left:0;padding-left:0}
.guard-ico{width:34px;height:34px;border-radius:10px;border:1px solid rgba(200,245,53,.5);display:flex;align-items:center;justify-content:center;color:var(--lime);font-size:15px;font-weight:800;margin-bottom:16px}
.guard-item h4{font-size:16px;font-weight:800;letter-spacing:-.01em}
.guard-item p{font-size:13px;color:#A8AEB4;margin-top:8px;line-height:1.7}
@media (max-width:991px){.guard-grid{grid-template-columns:repeat(2,1fr);gap:32px 0}.guard-item:nth-child(3){border-left:0;padding-left:0}}
@media (max-width:575px){.guard-grid{grid-template-columns:1fr}.guard-item{border-left:0;padding:0}}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;display:flex;flex-direction:column;transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);min-height:100%}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(16,18,21,.12)}
.news-card h3{font-size:16.5px;font-weight:800;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card .exc{font-size:13.5px;color:var(--muted);line-height:1.75;margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.news-foot{display:flex;align-items:center;gap:10px;margin-top:18px;padding-top:14px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted)}
.cat-badge{background:rgba(16,18,21,.06);color:var(--ink-2);font-size:12px;font-weight:700;padding:3px 9px;border-radius:6px}
.news-foot .go{margin-left:auto;color:var(--ink);font-weight:800}
.empty-state{grid-column:1/-1;min-height:240px;border:1px dashed var(--line);border-radius:var(--r-card);background:var(--surface);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:32px}
.empty-state .ph{width:56px;height:56px;border-radius:14px;background:var(--paper);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-weight:900;color:var(--muted);font-size:20px}
.empty-state p{font-size:14px;color:var(--muted)}
@media (max-width:991px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575px){.news-grid{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-q{width:100%;background:none;border:0;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0;min-height:56px;font-size:16.5px;font-weight:700;text-align:left;color:var(--ink-2);transition:color .18s}
.faq-q:hover{color:var(--ink)}
.faq-item.open .faq-q{color:var(--ink);font-weight:800}
.faq-ico{position:relative;width:16px;height:16px;flex:0 0 auto;color:var(--ink)}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;background:currentColor;border-radius:1px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.faq-ico::before{width:16px;height:1.6px;left:0;top:7.2px}
.faq-ico::after{width:1.6px;height:16px;top:0;left:7.2px}
.faq-item.open .faq-ico::after{transform:rotate(90deg);opacity:0}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .22s var(--ease)}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a p{font-size:15px;line-height:1.8;color:var(--muted);max-width:720px;padding:0 0 22px}

/* ---------- 底部 CTA ---------- */
.cta-band{padding:0 0 88px}
.cta-box{background:var(--ink);border-radius:var(--r-block);padding:56px;display:flex;align-items:center;justify-content:space-between;gap:40px;position:relative;overflow:hidden}
.cta-box::after{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(200,245,53,.16),transparent 70%)}
.cta-box h2{font-size:clamp(24px,3vw,34px);font-weight:900;color:#fff;letter-spacing:-.015em;line-height:1.2}
.cta-box p{font-size:14.5px;color:#A8AEB4;margin-top:12px;max-width:44ch}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}
@media (max-width:991px){.cta-box{flex-direction:column;align-items:flex-start;padding:40px 28px}}
@media (max-width:575px){.cta-band{padding-bottom:56px}}

/* ---------- 页脚 ---------- */
.site-foot{background:#0B0D0F;color:#B9BFC5;padding:72px 0 0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:48px}
.foot-brand{font-size:19px;font-weight:800;color:#fff;letter-spacing:-.02em;display:flex;align-items:baseline;gap:2px}
.foot-brand em{font-style:normal;color:#8D949B;font-weight:700;font-size:15px}
.foot-desc{font-size:13.5px;line-height:1.85;margin-top:16px;color:#8D949B;max-width:34ch}
.foot-col h4{font-size:13px;font-weight:800;color:#fff;letter-spacing:.08em;margin-bottom:18px;text-transform:uppercase}
.foot-col ul li{margin-bottom:11px}
.foot-col a{font-size:14px;color:#A8AEB4;transition:color .18s;border-bottom:1px solid transparent;padding-bottom:1px}
.foot-col a:hover{color:var(--lime);border-bottom-color:var(--lime)}
.foot-note{font-size:13px;color:#7C838A;line-height:1.85}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:12.5px;color:#70777D;flex-wrap:wrap}
.foot-bottom a{color:#8D949B}
.foot-bottom a:hover{color:var(--lime)}
@media (max-width:991px){.foot-grid{grid-template-columns:1fr 1fr;gap:36px}}
@media (max-width:575px){.foot-grid{grid-template-columns:1fr}.site-foot{padding-top:52px}}

/* ---------- 响应式导航 ---------- */
@media (max-width:991px){
  .nav-links{display:none}
  .nav-actions{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero{padding-top:40px}
  .hero-visual{aspect-ratio:16/11}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .metric{padding:20px}
  .metric:nth-child(3){border-left:0;padding-left:0}
  .metric:first-child{padding-left:20px}
  .metric:nth-child(odd){border-left:0;padding-left:0}
}
@media (max-width:575px){
  .hero h1{font-size:clamp(30px,8vw,40px)}
  .hero-cta .btn-nx{width:100%}
  .metrics-grid{grid-template-columns:1fr}
  .metric{border-left:0;padding:18px 0;border-top:1px solid var(--line)}
  .metric:first-child{border-top:0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .reveal{opacity:1!important;transform:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --ink:#101215;
  --ink-2:#262A2E;
  --paper:#F6F5F1;
  --surface:#FFFFFF;
  --lime:#C8F535;
  --lime-deep:#A9D500;
  --ember:#FF4A1F;
  --muted:#6B7076;
  --line:#E3E2DC;
  --r-card:18px;
  --r-block:24px;
  --r-img:16px;
  --r-badge:6px;
  --r-input:12px;
  --sh-1:0 2px 8px rgba(16,18,21,.05);
  --sh-2:0 18px 40px rgba(16,18,21,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --maxw:1200px;
  --bs-body-font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em}
p{margin:0}
ul{margin:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px;width:100%}
@media(min-width:1400px){.wrap{max-width:1280px}}
.num{font-variant-numeric:tabular-nums}

/* ============ 公告条 ============ */
.topbar{background:var(--ink);color:#E7EAEC;font-size:13px}
.topbar .wrap{display:flex;align-items:center;gap:14px;min-height:38px;justify-content:space-between}
.topbar-left{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.dot{width:7px;height:7px;border-radius:2px;background:var(--lime);flex:none;display:inline-block}
.topbar strong{color:#fff;font-weight:700}
.topbar a{color:#C9CDD2;font-size:13px;border-bottom:1px solid rgba(255,255,255,.3);transition:color .18s,border-color .18s}
.topbar a:hover{color:var(--lime);border-color:var(--lime)}

/* ============ 头部导航 ============ */
.site-head{position:sticky;top:0;z-index:1000;background:rgba(246,245,241,.92);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .2s ease,box-shadow .2s ease}
.site-head.is-stuck{border-bottom-color:var(--line);box-shadow:0 2px 14px rgba(16,18,21,.07)}
.head-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .2s var(--ease)}
.site-head.is-stuck .head-inner{height:64px}
.brand{font-weight:800;font-size:19px;letter-spacing:-.02em;color:var(--ink);white-space:nowrap;display:inline-flex;align-items:baseline;gap:5px}
.brand em{font-style:normal;font-weight:700;font-size:14px;color:var(--muted);letter-spacing:0}
.brand:hover{color:var(--ink)}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links a{position:relative;padding:8px 13px;font-size:15px;font-weight:600;color:var(--ink-2);border-radius:999px;transition:background .18s,color .18s}
.nav-links a:hover{background:rgba(16,18,21,.06);color:var(--ink)}
.nav-links a.active{color:var(--ink);font-weight:800}
.nav-links a.active::after{content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;background:var(--lime-deep);border-radius:2px}
.head-cta{display:flex;align-items:center;gap:10px;margin-left:8px}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:12px;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;margin-left:auto}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:700;line-height:1.2;padding:12px 26px;border-radius:999px;border:1.5px solid transparent;cursor:pointer;transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);text-align:center}
.btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-primary:hover{background:var(--lime-deep);border-color:var(--lime-deep);color:var(--ink);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:rgba(16,18,21,.3);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);border-color:var(--ink);color:var(--paper);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--ink);border-color:#fff}
.btn-light:hover{background:var(--lime);border-color:var(--lime);color:var(--ink);transform:translateY(-1px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.42);color:#fff}
.btn-outline-light:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-sm{padding:9px 18px;font-size:13.5px}
.btn-block{width:100%}
.btn:focus-visible,a:focus-visible,button:focus-visible,.chip:focus-visible{outline:2px solid var(--lime-deep);outline-offset:2px;box-shadow:none}
.text-link{font-weight:700;font-size:14.5px;color:var(--ink);background-image:linear-gradient(var(--lime-deep),var(--lime-deep));background-repeat:no-repeat;background-position:0 100%;background-size:0 2px;transition:background-size .22s var(--ease);padding-bottom:2px}
.text-link:hover{background-size:100% 2px}

/* ============ 页首 ============ */
.page-head{padding:44px 0 30px}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.crumb .sep{color:#B9BCC0}
.crumb .cur{color:var(--ink);font-weight:600}
.page-head h1{font-size:clamp(28px,3.6vw,44px);font-weight:900;line-height:1.16;letter-spacing:-.02em;margin-bottom:14px;max-width:900px}
.page-head h1 mark{background:linear-gradient(transparent 62%,var(--lime) 62%);color:inherit;padding:0 2px}
.lede{font-size:17px;line-height:1.8;color:var(--muted);max-width:740px}

/* ============ 筛选 chips ============ */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.chip{background:#fff;border:1px solid var(--line);color:var(--ink-2);font-size:14px;font-weight:600;padding:8px 17px;border-radius:999px;cursor:pointer;transition:background .18s,border-color .18s,color .18s,transform .18s var(--ease)}
.chip:hover{border-color:rgba(16,18,21,.35);transform:translateY(-1px)}
.chip.is-on{background:var(--ink);border-color:var(--ink);color:#fff}
.chip-divider{width:1px;height:22px;background:var(--line);margin:0 4px}

/* ============ 主体两栏 ============ */
.entry-layout{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:44px;padding:34px 0 84px;align-items:start}
.list-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:6px}
.list-head h2{font-size:22px;font-weight:800;letter-spacing:-.01em}
.list-head span{font-size:13px;color:var(--muted)}
.row-list{border-top:1px solid var(--line);margin-top:14px}
.row-item{display:grid;grid-template-columns:120px minmax(0,1fr) 148px;gap:22px;padding:22px 12px;border-bottom:1px solid var(--line);align-items:center;transition:background .18s var(--ease),padding .18s var(--ease)}
.row-item[hidden]{display:none}
.row-item:hover{background:rgba(255,255,255,.8)}
.row-thumb{width:120px;height:90px;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:var(--paper)}
.row-thumb img{width:100%;height:100%;object-fit:cover}
.row-tags{display:flex;gap:8px;margin-bottom:8px;flex-wrap:wrap}
.badge-lime{display:inline-block;background:var(--lime);color:var(--ink);font-size:12px;font-weight:700;padding:3px 9px;border-radius:var(--r-badge);line-height:1.5}
.badge-soft{display:inline-block;background:rgba(16,18,21,.06);color:var(--ink-2);font-size:12px;font-weight:700;padding:3px 9px;border-radius:var(--r-badge);line-height:1.5}
.badge-ember{display:inline-block;background:rgba(255,74,31,.1);color:var(--ember);font-size:12px;font-weight:700;padding:3px 9px;border-radius:var(--r-badge);line-height:1.5}
.row-body h3{font-size:18px;font-weight:800;line-height:1.4;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.row-body h3 .ver{font-size:13px;font-weight:700;color:var(--muted);font-variant-numeric:tabular-nums}
.row-body p{font-size:14px;line-height:1.72;color:var(--muted);margin-top:7px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.row-meta{display:flex;flex-direction:column;align-items:flex-end;gap:8px;text-align:right}
.meta-line{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.empty-state{display:none;padding:48px 24px;text-align:center;background:rgba(255,255,255,.7);border:1px dashed var(--line);border-radius:var(--r-card);margin-top:24px}
.empty-state.show{display:block}
.empty-state strong{display:block;font-size:16px;margin-bottom:6px}
.empty-state p{font-size:13.5px;color:var(--muted);margin-bottom:18px}

/* ============ 侧卡 ============ */
.entry-aside{position:sticky;top:92px;display:grid;gap:18px}
.aside-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-block);padding:26px;box-shadow:var(--sh-1)}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--muted);margin-bottom:12px}
.eyebrow::before{content:"—";margin-right:6px;color:var(--lime-deep)}
.aside-card h2{font-size:21px;font-weight:800;line-height:1.35;margin-bottom:4px}
.aside-sub{font-size:13px;color:var(--muted);margin-bottom:18px}
.aside-spec{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:18px}
.aside-spec div{display:flex;flex-direction:column;gap:3px}
.aside-spec span{font-size:12px;color:var(--muted)}
.aside-spec b{font-size:14.5px;font-weight:800;font-variant-numeric:tabular-nums}
.aside-points{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:10px}
.aside-points li{position:relative;padding-left:16px;font-size:13.5px;line-height:1.65;color:var(--muted)}
.aside-points li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;background:var(--lime-deep);border-radius:1px}
.aside-note{font-size:12.5px;color:var(--muted);line-height:1.7;margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}
.aside-mini{background:var(--ink);color:#D9DDE0;border-radius:var(--r-block);padding:24px}
.aside-mini h3{color:#fff;font-size:16px;font-weight:800;margin-bottom:8px}
.aside-mini p{font-size:13px;line-height:1.7;color:#9AA0A6;margin-bottom:16px}

/* ============ 保障条 ============ */
.assure{background:var(--ink);color:#E7EAEC;padding:56px 0}
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.assure-item{padding:0 26px;border-left:1px solid rgba(255,255,255,.12)}
.assure-item:first-child{border-left:0;padding-left:0}
.assure-icon{width:34px;height:34px;border-radius:10px;border:1px solid rgba(200,245,53,.55);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.assure-icon svg{width:17px;height:17px;stroke:var(--lime);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.assure-item h3{font-size:16px;font-weight:800;color:#fff;margin-bottom:6px}
.assure-item p{font-size:13px;line-height:1.7;color:#9AA0A6}

/* ============ 相关入口列表行 ============ */
.related{padding:80px 0 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:8px}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:800;letter-spacing:-.02em;line-height:1.2}
.sec-head p{font-size:14px;color:var(--muted);margin-top:8px}
.rel-list{border-top:1px solid var(--line);margin-top:22px}
.rel-item{display:grid;grid-template-columns:64px minmax(0,1fr) auto;gap:18px;align-items:center;padding:20px 12px;border-bottom:1px solid var(--line);transition:background .18s var(--ease)}
.rel-item:hover{background:rgba(255,255,255,.8)}
.rel-thumb{width:64px;height:64px;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:var(--paper)}
.rel-thumb img{width:100%;height:100%;object-fit:cover}
.rel-item h3{font-size:16.5px;font-weight:800;margin-bottom:4px}
.rel-item p{font-size:13.5px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.rel-arrow{font-size:13.5px;font-weight:700;color:var(--ink);white-space:nowrap;border-bottom:2px solid transparent;transition:border-color .18s}
.rel-item:hover .rel-arrow{border-color:var(--lime-deep)}

/* ============ FAQ ============ */
.faq-sec{padding:80px 0 0}
.faq-list{max-width:860px;margin-top:26px}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:56px;padding:16px 2px;background:none;border:0;text-align:left;font-size:16px;font-weight:700;color:var(--ink-2);cursor:pointer;transition:color .18s}
.faq-q:hover{color:var(--ink)}
.faq-q[aria-expanded="true"]{color:var(--ink);font-weight:800}
.faq-icon{position:relative;width:14px;height:14px;flex:none}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.faq-icon::before{left:0;top:6px;width:14px;height:2px}
.faq-icon::after{left:6px;top:0;width:2px;height:14px}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-width:720px;font-size:15px;line-height:1.85;color:var(--muted);padding:0 0 22px}
.faq-a strong{color:var(--ink);font-weight:700}

/* ============ CTA 大条 ============ */
.cta-wrap{padding:80px 0}
.cta-band{background:var(--ink);color:#fff;border-radius:var(--r-block);padding:46px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-band h2{font-size:clamp(24px,2.8vw,34px);font-weight:900;letter-spacing:-.02em;line-height:1.2;margin-bottom:10px}
.cta-band p{font-size:14.5px;line-height:1.75;color:#9AA0A6;max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:none}

/* ============ 页脚 ============ */
.site-foot{background:var(--ink);color:#C9CDD2;padding:64px 0 24px}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand{color:#fff;font-weight:800;font-size:19px;letter-spacing:-.02em;display:flex;align-items:baseline;gap:5px;flex-wrap:wrap}
.foot-brand em{font-style:normal;color:var(--lime);font-size:14px;font-weight:700;letter-spacing:0}
.foot-desc{font-size:13.5px;line-height:1.85;color:#9AA0A6;margin-top:14px;max-width:350px}
.foot-col h4{color:#fff;font-size:14px;font-weight:800;margin-bottom:14px;letter-spacing:0}
.foot-col ul{list-style:none;padding:0;display:grid;gap:10px}
.foot-col a{color:#9AA0A6;font-size:14px;transition:color .18s}
.foot-col a:hover{color:var(--lime);text-decoration:underline;text-underline-offset:3px}
.foot-note{font-size:13.5px;line-height:1.85;color:#9AA0A6}
.foot-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.1);margin-top:44px;padding-top:20px;font-size:13px;color:#8A9096}
.foot-bottom a{color:#B7BCC2;font-size:13px}
.foot-bottom a:hover{color:var(--lime)}

/* ============ 移动抽屉 ============ */
.drawer{position:fixed;inset:0;z-index:2000;background:var(--paper);display:none;flex-direction:column;padding:20px}
.drawer.open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;font-size:20px;line-height:1;cursor:pointer;color:var(--ink)}
.drawer-nav{display:grid;gap:4px;padding:18px 0}
.drawer-nav a{padding:13px 4px;font-size:17px;font-weight:700;color:var(--ink);border-bottom:1px solid var(--line)}
.drawer-nav a.active{color:var(--ink)}
.drawer-cta{display:grid;gap:10px;margin-top:auto;padding-top:18px}

/* ============ 移动底栏 ============ */
.mobile-bar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:900;background:rgba(246,245,241,.96);backdrop-filter:blur(10px);border-top:1px solid var(--line);padding:10px 16px calc(10px + env(safe-area-inset-bottom))}
.mobile-bar .btn{width:100%}

/* ============ 响应式 ============ */
@media(max-width:1199px){
  .entry-layout{grid-template-columns:minmax(0,1fr) 308px;gap:34px}
}
@media(max-width:991px){
  .wrap{padding:0 24px}
  .nav-links,.head-cta{display:none}
  .nav-toggle{display:flex}
  .entry-layout{grid-template-columns:1fr;gap:30px;padding-bottom:64px}
  .entry-aside{position:static}
  .assure-grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .assure-item{border-left:0;padding:0}
  .assure-item:nth-child(2n){padding-left:26px;border-left:1px solid rgba(255,255,255,.12)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px}
}
@media(max-width:767px){
  .row-item{grid-template-columns:96px minmax(0,1fr);gap:16px;padding:20px 0}
  .row-thumb{width:96px;height:74px}
  .row-meta{grid-column:1 / -1;flex-direction:row;align-items:center;justify-content:space-between;gap:12px;text-align:left;margin-top:4px}
  .row-meta .meta-line:first-child{display:none}
  .row-body p{-webkit-line-clamp:2}
}
@media(max-width:575px){
  body{font-size:15px}
  .wrap{padding:0 20px}
  .page-head{padding:32px 0 22px}
  .page-head h1{font-size:27px;line-height:1.24}
  .lede{font-size:15px}
  .filter-bar{gap:8px;padding:16px 0}
  .chip{font-size:13px;padding:7px 14px}
  .chip-divider{display:none}
  .list-head h2{font-size:19px}
  .rel-item{grid-template-columns:52px minmax(0,1fr);gap:14px}
  .rel-thumb{width:52px;height:52px}
  .rel-arrow{grid-column:2;justify-self:start}
  .assure{padding:44px 0}
  .assure-grid{grid-template-columns:1fr;gap:26px}
  .assure-item:nth-child(2n){padding-left:0;border-left:0}
  .cta-band{padding:28px 22px;border-radius:20px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .site-foot{padding:48px 0 88px}
  .mobile-bar{display:block}
  .faq-q{font-size:15px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* roulang page: article */
:root {
      --ink: #101215;
      --ink-2: #262A2E;
      --paper: #F6F5F1;
      --surface: #FFFFFF;
      --lime: #C8F535;
      --lime-deep: #A9D500;
      --ember: #FF4A1F;
      --muted: #6B7076;
      --line: #E3E2DC;
      --radius-card: 18px;
      --radius-lg: 24px;
      --radius-img: 16px;
      --shadow-sm: 0 2px 8px rgba(16, 18, 21, .05);
      --shadow-hover: 0 18px 40px rgba(16, 18, 21, .12);
      --container: 1200px;
      --ease: cubic-bezier(.2, .7, .3, 1);
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background: var(--paper);
      color: var(--ink);
      font-size: 16px;
      line-height: 1.85;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

    body {
      min-width: 320px;
    }

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

    a {
      color: inherit;
      text-decoration: none;
    }

    button,
    input,
    textarea,
    select {
      font: inherit;
    }

    button {
      border: 0;
    }

    :focus-visible {
      outline: 2px solid var(--lime);
      outline-offset: 2px;
    }

    ::selection {
      background: var(--lime);
      color: var(--ink);
    }

    .wrap {
      width: min(var(--container), calc(100% - 64px));
      margin: 0 auto;
    }

    .site-head {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(246, 245, 241, .94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid transparent;
      transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
    }

    .site-head.scrolled {
      border-bottom-color: var(--line);
      box-shadow: 0 8px 24px rgba(16, 18, 21, .06);
    }

    .head-inner {
      height: 72px;
      display: flex;
      align-items: center;
      gap: 32px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      flex-shrink: 0;
      color: var(--ink);
      font-size: 22px;
      font-weight: 800;
      letter-spacing: -.02em;
      line-height: 1;
      white-space: nowrap;
    }

    .logo em {
      font-style: normal;
      background: linear-gradient(transparent 66%, var(--lime) 66%);
      padding: 0 2px;
    }

    .nav-panel {
      display: flex;
      align-items: center;
      flex: 1;
      gap: 28px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 26px;
      margin-left: auto;
    }

    .nav-links a {
      position: relative;
      display: inline-flex;
      align-items: center;
      padding: 8px 0;
      color: var(--ink-2);
      font-size: 15px;
      font-weight: 600;
      line-height: 1.2;
      transition: color .18s var(--ease);
    }

    .nav-links a::after {
      content: "";
      position: absolute;
      left: 0;
      right: 100%;
      bottom: 0;
      height: 2px;
      background: var(--lime-deep);
      transition: right .2s var(--ease);
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--ink);
    }

    .nav-links a:hover::after,
    .nav-links a.active::after {
      right: 0;
    }

    .nav-links a.active {
      font-weight: 800;
    }

    .nav-cta {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      margin-left: auto;
      border: 1px solid var(--line);
      border-radius: 12px;
      background: var(--surface);
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 5px;
      cursor: pointer;
      transition: border-color .18s var(--ease), background .18s var(--ease);
    }

    .nav-toggle:hover {
      border-color: var(--ink);
    }

    .nav-toggle span {
      display: block;
      width: 18px;
      height: 2px;
      background: var(--ink);
      border-radius: 2px;
      transition: transform .2s var(--ease), opacity .2s var(--ease);
    }

    .nav-toggle[aria-expanded="true"] span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle[aria-expanded="true"] span:nth-child(2) {
      opacity: 0;
    }

    .nav-toggle[aria-expanded="true"] span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border: 1.5px solid transparent;
      border-radius: 999px;
      font-weight: 700;
      font-size: 15px;
      line-height: 1;
      padding: 13px 26px;
      cursor: pointer;
      white-space: nowrap;
      transition: transform .18s var(--ease), background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease);
    }

    .btn:hover {
      transform: translateY(-1px);
    }

    .btn:active {
      transform: translateY(0);
    }

    .btn-main {
      background: var(--lime);
      color: var(--ink);
    }

    .btn-main:hover {
      background: var(--lime-deep);
      color: var(--ink);
    }

    .btn-ghost {
      background: transparent;
      border-color: var(--ink);
      color: var(--ink);
    }

    .btn-ghost:hover {
      background: var(--ink);
      color: var(--paper);
    }

    .btn-light {
      background: #fff;
      color: var(--ink);
    }

    .btn-light:hover {
      background: var(--lime);
      color: var(--ink);
    }

    .btn-sm {
      padding: 10px 18px;
      font-size: 14px;
    }

    .btn-block {
      width: 100%;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 10px;
      border-radius: 6px;
      font-size: 12px;
      font-weight: 700;
      line-height: 1;
    }

    .badge-lime {
      background: var(--lime);
      color: var(--ink);
    }

    .badge-outline {
      border: 1px solid var(--line);
      background: var(--surface);
      color: var(--ink-2);
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding-bottom: 3px;
      color: var(--ink);
      font-size: 14px;
      font-weight: 700;
      background-image: linear-gradient(var(--lime-deep), var(--lime-deep));
      background-repeat: no-repeat;
      background-size: 0 2px;
      background-position: 0 100%;
      transition: background-size .2s var(--ease), color .18s var(--ease);
    }

    .text-link:hover {
      background-size: 100% 2px;
      color: var(--ink);
    }

    .text-link span {
      transition: transform .18s var(--ease);
    }

    .text-link:hover span {
      transform: translateX(3px);
    }

    main {
      display: block;
    }

    .article-top {
      padding: 56px 0 0;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
      margin-bottom: 28px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
    }

    .breadcrumb a {
      color: var(--muted);
      transition: color .18s var(--ease);
    }

    .breadcrumb a:hover {
      color: var(--ink);
      text-decoration: underline;
      text-underline-offset: 3px;
    }

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

    .breadcrumb .current {
      max-width: 60ch;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      color: var(--ink-2);
    }

    .article-head {
      max-width: 920px;
    }

    .eyebrow-row {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
      margin-bottom: 18px;
    }

    .dot {
      width: 4px;
      height: 4px;
      border-radius: 50%;
      background: var(--muted);
    }

    .meta {
      color: var(--muted);
      font-size: 13px;
      line-height: 1.5;
      font-variant-numeric: tabular-nums;
    }

    .article-head h1 {
      margin: 0 0 18px;
      color: var(--ink);
      font-size: clamp(26px, 3.4vw, 42px);
      line-height: 1.25;
      font-weight: 800;
      letter-spacing: -.02em;
      word-break: break-word;
    }

    .article-lead {
      max-width: 720px;
      margin: 0;
      color: var(--muted);
      font-size: 16px;
      line-height: 1.8;
    }

    .article-section {
      padding: 48px 0 80px;
    }

    .article-layout {
      display: grid;
      grid-template-columns: minmax(0, 820px) 260px;
      gap: 56px;
      align-items: start;
    }

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

    .note-box {
      margin-bottom: 32px;
      padding: 16px 18px;
      border: 1px solid rgba(169, 213, 0, .5);
      border-left: 4px solid var(--lime-deep);
      border-radius: 12px;
      background: rgba(200, 245, 53, .14);
      color: var(--ink-2);
      font-size: 14px;
      line-height: 1.75;
    }

    .article-body {
      color: var(--ink-2);
      font-size: 17px;
      line-height: 1.9;
      overflow-wrap: break-word;
    }

    .article-body > *:first-child {
      margin-top: 0;
    }

    .article-body p {
      margin: 0 0 1.2em;
    }

    .article-body h2 {
      position: relative;
      margin: 2.2em 0 .8em;
      padding-left: 16px;
      color: var(--ink);
      font-size: 24px;
      line-height: 1.35;
      font-weight: 800;
      letter-spacing: -.01em;
    }

    .article-body h2::before {
      content: "";
      position: absolute;
      left: 0;
      top: .22em;
      width: 4px;
      height: 1.1em;
      border-radius: 2px;
      background: var(--lime-deep);
    }

    .article-body h3 {
      margin: 1.8em 0 .6em;
      color: var(--ink);
      font-size: 19px;
      line-height: 1.45;
      font-weight: 700;
    }

    .article-body h4 {
      margin: 1.5em 0 .5em;
      color: var(--ink);
      font-size: 17px;
      line-height: 1.5;
      font-weight: 700;
    }

    .article-body ul,
    .article-body ol {
      margin: 0 0 1.2em;
      padding-left: 0;
      list-style: none;
    }

    .article-body ul li {
      position: relative;
      margin-bottom: .5em;
      padding-left: 20px;
    }

    .article-body ul li::before {
      content: "";
      position: absolute;
      left: 0;
      top: .72em;
      width: 7px;
      height: 7px;
      border-radius: 1px;
      background: var(--lime-deep);
    }

    .article-body ol {
      counter-reset: item;
    }

    .article-body ol li {
      position: relative;
      margin-bottom: .5em;
      padding-left: 28px;
      counter-increment: item;
    }

    .article-body ol li::before {
      content: counter(item);
      position: absolute;
      left: 0;
      top: .25em;
      display: flex;
      align-items: center;
      justify-content: center;
      width: 19px;
      height: 19px;
      border-radius: 4px;
      background: var(--ink);
      color: #fff;
      font-size: 11px;
      font-weight: 700;
      line-height: 1;
    }

    .article-body blockquote {
      margin: 1.6em 0;
      padding: 16px 20px;
      border-left: 3px solid var(--lime-deep);
      border-radius: 0 12px 12px 0;
      background: rgba(200, 245, 53, .12);
      color: var(--ink-2);
    }

    .article-body blockquote p:last-child {
      margin-bottom: 0;
    }

    .article-body a {
      color: var(--ink);
      font-weight: 600;
      text-decoration: underline;
      text-decoration-color: var(--lime-deep);
      text-decoration-thickness: 2px;
      text-underline-offset: 3px;
    }

    .article-body a:hover {
      background: var(--lime);
    }

    .article-body img {
      width: 100%;
      height: auto;
      margin: 1.4em 0 .6em;
      border-radius: 14px;
    }

    .article-body figure {
      margin: 1.6em 0;
    }

    .article-body figcaption {
      margin-top: 8px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
      text-align: center;
    }

    .article-body table {
      width: 100%;
      margin: 1.6em 0;
      border-collapse: collapse;
      font-size: 15px;
    }

    .article-body th,
    .article-body td {
      padding: 10px 12px;
      border: 1px solid var(--line);
      text-align: left;
    }

    .article-body th {
      background: var(--paper);
      font-weight: 700;
    }

    .article-body code {
      padding: 2px 6px;
      border-radius: 4px;
      background: #ECEBE6;
      font-size: .9em;
    }

    .article-body pre {
      margin: 1.6em 0;
      padding: 18px;
      border-radius: 12px;
      background: var(--ink);
      color: #fff;
      overflow: auto;
    }

    .article-foot {
      margin-top: 56px;
      padding-top: 28px;
      border-top: 1px solid var(--line);
    }

    .tags {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
      margin-bottom: 32px;
    }

    .tags-label {
      margin-right: 4px;
      color: var(--muted);
      font-size: 13px;
    }

    .tag {
      display: inline-flex;
      padding: 6px 10px;
      border: 1px solid var(--line);
      border-radius: 6px;
      background: var(--surface);
      color: var(--ink-2);
      font-size: 12px;
      font-weight: 600;
      line-height: 1.4;
      transition: border-color .18s var(--ease), color .18s var(--ease), background .18s var(--ease);
    }

    .tag:hover {
      border-color: var(--ink);
      color: var(--ink);
      background: #fff;
    }

    .next-links {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 28px;
    }

    .next-card {
      display: flex;
      flex-direction: column;
      gap: 6px;
      padding: 20px;
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      background: var(--surface);
      transition: transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease);
    }

    .next-card:hover {
      transform: translateY(-4px);
      border-color: rgba(16, 18, 21, .12);
      box-shadow: var(--shadow-hover);
    }

    .next-card span {
      color: var(--muted);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: .08em;
    }

    .next-card strong {
      color: var(--ink);
      font-size: 16px;
      line-height: 1.5;
    }

    .next-card em {
      color: var(--muted);
      font-style: normal;
      font-size: 13px;
      line-height: 1.6;
    }

    .empty-state {
      padding: 56px 24px;
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      background: var(--surface);
      text-align: center;
    }

    .empty-mark {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 56px;
      height: 56px;
      margin: 0 auto 18px;
      border: 1px solid var(--line);
      border-radius: 16px;
      background: var(--paper);
      color: var(--muted);
      font-size: 24px;
      font-weight: 800;
    }

    .empty-state h2 {
      margin: 0 0 8px;
      color: var(--ink);
      font-size: 22px;
      font-weight: 800;
      line-height: 1.35;
    }

    .empty-state p {
      margin: 0 0 20px;
      color: var(--muted);
      font-size: 14px;
    }

    .article-side {
      position: sticky;
      top: 96px;
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .side-card {
      padding: 22px;
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      background: var(--surface);
      box-shadow: var(--shadow-sm);
    }

    .side-download {
      border-color: var(--ink);
      background: var(--ink);
      color: #fff;
    }

    .side-download .side-eyebrow {
      color: var(--lime);
    }

    .side-download h2 {
      margin: 8px 0;
      color: #fff;
      font-size: 20px;
      line-height: 1.35;
      font-weight: 800;
    }

    .side-download p {
      margin: 0 0 16px;
      color: rgba(255, 255, 255, .72);
      font-size: 13px;
      line-height: 1.7;
    }

    .side-download .text-link {
      margin-top: 14px;
      color: #fff;
      background-image: linear-gradient(var(--lime), var(--lime));
    }

    .side-download .text-link span {
      color: var(--lime);
    }

    .side-eyebrow {
      color: var(--muted);
      font-size: 11px;
      font-weight: 800;
      letter-spacing: .12em;
      line-height: 1.4;
    }

    .side-card h3 {
      margin: 0 0 14px;
      color: var(--ink);
      font-size: 15px;
      font-weight: 800;
      line-height: 1.4;
    }

    .side-list {
      display: flex;
      flex-direction: column;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .side-list a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 11px 0;
      border-bottom: 1px solid var(--line);
      color: var(--ink-2);
      font-size: 14px;
      transition: color .18s var(--ease);
    }

    .side-list li:last-child a {
      border-bottom: 0;
    }

    .side-list a::after {
      content: "→";
      color: var(--muted);
      font-size: 13px;
      transition: transform .18s var(--ease), color .18s var(--ease);
    }

    .side-list a:hover {
      color: var(--ink);
    }

    .side-list a:hover::after {
      transform: translateX(3px);
      color: var(--ink);
    }

    .side-tip {
      border-color: rgba(169, 213, 0, .45);
      background: rgba(200, 245, 53, .14);
    }

    .side-tip p {
      margin: 8px 0 0;
      color: var(--ink-2);
      font-size: 13px;
      line-height: 1.7;
    }

    .related-section {
      padding: 0 0 88px;
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 28px;
    }

    .section-head h2 {
      margin: 0;
      color: var(--ink);
      font-size: clamp(26px, 3vw, 34px);
      line-height: 1.2;
      font-weight: 800;
      letter-spacing: -.02em;
    }

    .section-head p {
      margin: 6px 0 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.6;
    }

    .related-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .related-card {
      display: flex;
      flex-direction: column;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      background: var(--surface);
      transition: transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease);
    }

    .related-card:hover {
      transform: translateY(-4px);
      border-color: rgba(16, 18, 21, .12);
      box-shadow: var(--shadow-hover);
    }

    .related-media {
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: var(--paper);
    }

    .related-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .35s var(--ease);
    }

    .related-card:hover .related-media img {
      transform: scale(1.03);
    }

    .related-body {
      display: flex;
      flex: 1;
      flex-direction: column;
      gap: 8px;
      padding: 18px;
    }

    .related-body .badge {
      align-self: flex-start;
    }

    .related-body h3 {
      margin: 0;
      color: var(--ink);
      font-size: 17px;
      line-height: 1.5;
      font-weight: 800;
    }

    .related-body p {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.7;
    }

    .related-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-top: auto;
      padding-top: 10px;
      border-top: 1px solid var(--line);
      color: var(--muted);
      font-size: 12px;
    }

    .related-meta strong {
      color: var(--ink);
      font-weight: 700;
    }

    .cta-section {
      padding: 0 0 88px;
    }

    .cta-box {
      position: relative;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 32px;
      overflow: hidden;
      padding: 44px 48px;
      border-radius: var(--radius-lg);
      background: var(--ink);
      color: #fff;
    }

    .cta-box::after {
      content: "";
      position: absolute;
      right: -80px;
      bottom: -120px;
      width: 320px;
      height: 320px;
      background: radial-gradient(circle, rgba(200, 245, 53, .18), transparent 65%);
      pointer-events: none;
    }

    .cta-box > div {
      position: relative;
      z-index: 1;
    }

    .cta-box h2 {
      margin: 0 0 10px;
      color: #fff;
      font-size: clamp(26px, 3vw, 36px);
      line-height: 1.2;
      font-weight: 800;
      letter-spacing: -.02em;
    }

    .cta-box p {
      max-width: 48ch;
      margin: 0;
      color: rgba(255, 255, 255, .68);
      font-size: 14px;
      line-height: 1.75;
    }

    .cta-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      flex-shrink: 0;
    }

    .site-foot {
      padding: 64px 0 28px;
      background: var(--ink);
      color: rgba(255, 255, 255, .72);
    }

    .foot-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 48px;
      padding-bottom: 48px;
      border-bottom: 1px solid rgba(255, 255, 255, .12);
    }

    .foot-brand {
      margin-bottom: 16px;
      color: #fff;
      font-size: 22px;
      font-weight: 800;
      letter-spacing: -.02em;
      line-height: 1.3;
    }

    .foot-brand em {
      color: var(--lime);
      font-style: normal;
    }

    .foot-desc {
      max-width: 36ch;
      margin: 0;
      color: rgba(255, 255, 255, .6);
      font-size: 13px;
      line-height: 1.8;
    }

    .foot-col h4 {
      margin: 0 0 18px;
      color: #fff;
      font-size: 14px;
      font-weight: 800;
      line-height: 1.4;
    }

    .foot-col ul {
      display: flex;
      flex-direction: column;
      gap: 10px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .foot-col a {
      color: rgba(255, 255, 255, .66);
      font-size: 13px;
      transition: color .18s var(--ease);
    }

    .foot-col a:hover {
      color: var(--lime);
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .foot-note {
      margin: 0;
      color: rgba(255, 255, 255, .6);
      font-size: 13px;
      line-height: 1.8;
    }

    .foot-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      flex-wrap: wrap;
      padding-top: 24px;
      color: rgba(255, 255, 255, .45);
      font-size: 12px;
      line-height: 1.7;
    }

    .foot-bottom a {
      color: rgba(255, 255, 255, .55);
      transition: color .18s var(--ease);
    }

    .foot-bottom a:hover {
      color: var(--lime);
    }

    .mobile-bar {
      display: none;
    }

    @media (min-width: 992px) {
      .nav-toggle {
        display: none;
      }

      .nav-panel.collapse {
        display: flex !important;
      }
    }

    @media (max-width: 991.98px) {
      .wrap {
        width: calc(100% - 40px);
      }

      .head-inner {
        height: 64px;
        gap: 16px;
      }

      .logo {
        font-size: 20px;
      }

      .nav-toggle {
        display: flex;
      }

      .nav-panel {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 99;
        overflow: auto;
        padding: 24px 20px 40px;
        background: var(--paper);
      }

      .nav-panel.collapse:not(.show) {
        display: none;
      }

      .nav-panel.show {
        display: block;
      }

      .nav-links {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        margin-left: 0;
      }

      .nav-links a {
        padding: 16px 0;
        border-bottom: 1px solid var(--line);
        font-size: 16px;
      }

      .nav-links a::after {
        display: none;
      }

      .nav-cta {
        flex-direction: column;
        align-items: stretch;
        margin-top: 24px;
      }

      .nav-cta .btn {
        width: 100%;
      }

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

      .article-side {
        position: static;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
      }

      .article-side .side-download {
        grid-column: span 2;
      }

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

      .cta-box {
        flex-direction: column;
        align-items: flex-start;
        padding: 36px;
      }

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

      .mobile-bar {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 95;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
        border-top: 1px solid var(--line);
        background: rgba(246, 245, 241, .96);
        backdrop-filter: blur(10px);
      }

      .mobile-bar strong {
        color: var(--ink);
        font-size: 14px;
        line-height: 1.3;
      }

      .mobile-bar .btn {
        padding: 11px 20px;
      }

      body {
        padding-bottom: 72px;
      }
    }

    @media (max-width: 767.98px) {
      .article-top {
        padding-top: 36px;
      }

      .article-section {
        padding: 36px 0 56px;
      }

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

      .article-side .side-download {
        grid-column: auto;
      }

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

      .section-head {
        flex-direction: column;
        align-items: flex-start;
      }

      .next-links {
        grid-template-columns: 1fr;
      }

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

      .foot-bottom {
        flex-direction: column;
        align-items: flex-start;
      }

      .cta-box {
        padding: 28px 22px;
      }

      .cta-actions {
        width: 100%;
      }

      .cta-actions .btn {
        flex: 1;
      }
    }

    @media (max-width: 575.98px) {
      .wrap {
        width: calc(100% - 32px);
      }

      .article-head h1 {
        font-size: 28px;
      }

      .article-body {
        font-size: 16px;
      }

      .breadcrumb .current {
        white-space: normal;
      }

      .article-lead {
        font-size: 15px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      *,
      *::before,
      *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
      }
    }

/* roulang page: category2 */
:root{
  --ink:#101215;
  --ink-2:#262A2E;
  --paper:#F6F5F1;
  --surface:#FFFFFF;
  --lime:#C8F535;
  --lime-deep:#A9D500;
  --ember:#FF4A1F;
  --muted:#6B7076;
  --line:#E3E2DC;
  --r-card:18px;
  --r-big:24px;
  --r-img:16px;
  --r-btn:999px;
  --r-badge:6px;
  --shadow:0 2px 8px rgba(16,18,21,.05);
  --shadow-hover:0 18px 40px rgba(16,18,21,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
:focus-visible{outline:2px solid var(--lime-deep);outline-offset:2px;}
.num{font-variant-numeric:tabular-nums;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media(min-width:1400px){.wrap{max-width:1280px;}}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:80;
  background:rgba(246,245,241,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.site-head.is-stuck{border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(16,18,21,.06);}
.head-inner{
  display:flex;align-items:center;gap:28px;
  height:72px;
  transition:height .2s var(--ease);
}
.site-head.is-stuck .head-inner{height:64px;}
.logo{
  display:inline-flex;align-items:baseline;gap:2px;
  font-size:19px;font-weight:800;letter-spacing:-.02em;white-space:nowrap;
}
.logo em{font-style:normal;color:var(--muted);font-weight:700;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-links a{
  position:relative;font-size:15px;font-weight:700;color:var(--ink-2);
  padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--lime-deep);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after,
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--ink);font-weight:800;}
.head-actions{display:flex;align-items:center;gap:12px;margin-left:8px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;
  padding:13px 26px;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--lime);color:var(--ink);}
.btn-primary:hover{background:var(--lime-deep);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--paper);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:var(--lime);color:var(--ink);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--ink);
  background-image:linear-gradient(var(--ink),var(--ink));
  background-repeat:no-repeat;background-position:0 100%;background-size:0 1px;
  padding-bottom:2px;
  transition:background-size .25s var(--ease),color .18s var(--ease);
}
.btn-text:hover{background-size:100% 1px;color:var(--ink);}
.btn-text .arw{transition:transform .2s var(--ease);}
.btn-text:hover .arw{transform:translateX(3px);}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;margin-left:auto;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- page head ---------- */
.page-head{padding:36px 0 8px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--ink);}
.crumb .sep{color:#B9B7AF;}
.crumb .now{color:var(--ink);font-weight:700;}
.page-head h1{
  margin-top:18px;
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.1;font-weight:900;letter-spacing:-.02em;
}
.page-head h1 .hl{
  background:linear-gradient(transparent 62%,var(--lime) 62%);
  padding:0 2px;
}
.page-lead{margin-top:16px;max-width:760px;font-size:17px;color:var(--ink-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--muted);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime-deep);display:block;}

/* ---------- stats ---------- */
.stats{
  margin-top:34px;
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stats .cell{padding:26px 20px 26px 0;}
.stats .cell+.cell{padding-left:24px;border-left:1px solid var(--line);}
.stats .val{font-size:clamp(24px,2.6vw,32px);font-weight:900;letter-spacing:-.02em;line-height:1.1;}
.stats .val small{font-size:13px;font-weight:700;color:var(--muted);margin-left:4px;letter-spacing:0;}
.stats .lbl{margin-top:6px;font-size:13px;color:var(--muted);}

/* ---------- section base ---------- */
.section{padding:72px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.2;letter-spacing:-.01em;}
.section-head p{margin-top:10px;font-size:15px;color:var(--muted);max-width:640px;}

/* ---------- current version feature ---------- */
.current{
  display:grid;grid-template-columns:1.15fr .85fr;gap:0;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-big);
  overflow:hidden;box-shadow:var(--shadow);
}
.current-body{padding:38px 40px;}
.current-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--ink);color:var(--lime);
  font-size:12px;font-weight:700;letter-spacing:.06em;
  padding:6px 12px;border-radius:var(--r-badge);
}
.current-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--lime);}
.current h3{margin-top:18px;font-size:clamp(26px,3.2vw,38px);font-weight:900;letter-spacing:-.02em;line-height:1.1;}
.current .meta-row{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:14px;
  font-size:13px;color:var(--muted);
}
.current .meta-row b{color:var(--ink);font-weight:700;}
.current ul{margin-top:22px;display:grid;gap:10px;}
.check-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-2);}
.check-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:11px;
  background:var(--lime-deep);border-radius:2px;
}
.current-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.current-media{position:relative;min-height:320px;background:var(--ink);}
.current-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.current-media .veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,18,21,.15) 0%,rgba(16,18,21,.72) 100%);
}
.current-media .tag{
  position:absolute;left:24px;right:24px;bottom:22px;
  color:#fff;font-size:13px;letter-spacing:.02em;
}
.current-media .tag strong{display:block;font-size:34px;font-weight:900;line-height:1.05;letter-spacing:-.02em;font-variant-numeric:tabular-nums;}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:44px;max-width:900px;}
.timeline::before{
  content:"";position:absolute;left:7px;top:10px;bottom:24px;width:2px;background:var(--line);
}
.tl-item{position:relative;padding-bottom:46px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-44px;top:9px;
  width:16px;height:16px;border-radius:50%;
  background:var(--paper);border:2px solid #C9C7BF;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.tl-item.is-current::before{
  background:var(--lime);border-color:var(--lime-deep);
  box-shadow:0 0 0 5px rgba(200,245,53,.35);
}
.tl-top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;}
.tl-ver{
  font-size:clamp(22px,2.6vw,30px);font-weight:900;letter-spacing:-.01em;
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.tl-date{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;padding:5px 10px;border-radius:var(--r-badge);
  background:#EEEDE7;color:var(--ink-2);letter-spacing:.02em;
}
.badge-lime{background:var(--lime);color:var(--ink);}
.badge-ember{background:rgba(255,74,31,.1);color:var(--ember);}
.tl-body{
  margin-top:16px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px 26px;box-shadow:var(--shadow);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.tl-item:hover .tl-body{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(16,18,21,.12);}
.tl-body ul{display:grid;gap:9px;}
.sq-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-2);line-height:1.75;}
.sq-list li::before{
  content:"";flex:0 0 auto;width:7px;height:7px;margin-top:10px;
  background:var(--ink-2);border-radius:1px;
}
.tl-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:14px;margin-top:20px;padding-top:16px;border-top:1px dashed var(--line);
}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--muted);}
.tl-meta b{color:var(--ink);font-weight:700;font-variant-numeric:tabular-nums;}

/* ---------- verify flow ---------- */
.verify{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:72px;padding:64px 0;}
.verify-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:36px;}
.step{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(16,18,21,.12);}
.step .no{
  font-size:34px;font-weight:900;letter-spacing:-.02em;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px #C9C7BF;font-variant-numeric:tabular-nums;
}
.step h3{margin-top:14px;font-size:19px;font-weight:800;}
.step p{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.8;}

.note-strip{
  margin-top:34px;display:flex;flex-wrap:wrap;align-items:center;gap:16px;justify-content:space-between;
  background:rgba(200,245,53,.16);border:1px solid rgba(169,213,0,.5);
  border-radius:var(--r-card);padding:20px 24px;
}
.note-strip p{font-size:15px;color:var(--ink-2);max-width:720px;}

/* ---------- faq ---------- */
.faq-list{max-width:860px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;padding:16px 0;text-align:left;
  font-size:16px;font-weight:700;color:var(--ink-2);
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--ink);}
.faq-item.is-open .faq-q{color:var(--ink);font-weight:800;}
.faq-ico{position:relative;flex:0 0 auto;width:16px;height:16px;transition:transform .2s ease;}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
  transition:opacity .2s ease;
}
.faq-ico::before{left:0;top:7px;width:16px;height:2px;}
.faq-ico::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.is-open .faq-ico{transform:rotate(45deg);}
.faq-a{overflow:hidden;max-height:0;transition:max-height .22s ease;}
.faq-a p{
  max-width:720px;padding:0 0 22px;font-size:15px;line-height:1.8;color:var(--muted);
}

/* ---------- related ---------- */
.related-list{border-top:1px solid var(--line);}
.related-row{
  display:flex;align-items:center;gap:20px;
  padding:22px 0;border-bottom:1px solid var(--line);
  transition:padding-left .2s var(--ease);
}
.related-row:hover{padding-left:6px;}
.related-row .pin{
  flex:0 0 auto;width:10px;height:10px;border-radius:50%;
  border:2px solid var(--lime-deep);background:var(--paper);
}
.related-row .txt{flex:1 1 auto;min-width:0;}
.related-row h3{font-size:17px;font-weight:800;}
.related-row p{margin-top:4px;font-size:14px;color:var(--muted);}
.related-row .go{
  flex:0 0 auto;width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-size:15px;color:var(--ink);transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.related-row:hover .go{background:var(--ink);color:#fff;border-color:var(--ink);}

/* ---------- cta ---------- */
.cta-band{
  margin-top:80px;
  background:var(--ink);border-radius:var(--r-big);
  padding:48px 48px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  color:#fff;
}
.cta-band h2{font-size:clamp(24px,3vw,34px);font-weight:900;letter-spacing:-.02em;line-height:1.2;}
.cta-band h2 span{color:var(--lime);}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.72);max-width:560px;}
.cta-band .acts{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- footer ---------- */
.site-foot{background:#0B0C0E;color:rgba(255,255,255,.72);margin-top:88px;padding:64px 0 26px;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.foot-brand{font-size:19px;font-weight:800;color:#fff;letter-spacing:-.02em;}
.foot-brand em{font-style:normal;color:var(--lime);}
.foot-desc{margin-top:14px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:360px;}
.foot-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.foot-col ul{display:grid;gap:10px;}
.foot-col a{font-size:14px;color:rgba(255,255,255,.66);border-bottom:1px solid transparent;}
.foot-col a:hover{color:var(--lime);border-bottom-color:var(--lime);}
.foot-note{font-size:14px;color:rgba(255,255,255,.6);line-height:1.85;}
.foot-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.5);
}
.foot-bottom a{color:rgba(255,255,255,.6);}
.foot-bottom a:hover{color:var(--lime);}

/* ---------- mobile bar ---------- */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:rgba(246,245,241,.96);backdrop-filter:blur(8px);
  border-top:1px solid var(--line);padding:10px 16px;
  gap:10px;align-items:center;
}
.mobile-bar .btn{flex:1 1 auto;}

/* ---------- responsive ---------- */
@media(max-width:991px){
  .wrap{padding:0 20px;}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:100%;
    background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;padding:8px 20px 18px;
    box-shadow:0 18px 40px rgba(16,18,21,.12);
  }
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--line);font-size:16px;}
  .nav-links a::after{display:none;}
  .nav-links a.is-active{color:var(--ink);}
  .nav-links a.is-active::before{content:"· ";color:var(--lime-deep);font-weight:900;}
  .site-head.is-open .nav-links{display:flex;}
  .head-actions{display:none;}
  .nav-toggle{display:inline-flex;}
  .current{grid-template-columns:1fr;}
  .current-media{min-height:220px;order:-1;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .stats .cell:nth-child(3){padding-left:0;border-left:0;}
  .stats .cell:nth-child(3),
  .stats .cell:nth-child(4){border-top:1px solid var(--line);}
  .stats .cell:nth-child(3){padding-left:0;}
  .verify-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:36px 28px;}
}
@media(max-width:575px){
  .page-head{padding-top:24px;}
  .page-lead{font-size:16px;}
  .section{padding-top:52px;}
  .verify{margin-top:52px;padding:48px 0;}
  .current-body{padding:28px 22px;}
  .current-actions .btn{width:100%;}
  .timeline{padding-left:30px;}
  .tl-item::before{left:-30px;width:14px;height:14px;}
  .timeline::before{left:6px;}
  .tl-body{padding:20px 18px;}
  .cta-band{padding:30px 22px;margin-top:56px;border-radius:20px;}
  .cta-band .acts{width:100%;}
  .cta-band .acts .btn{flex:1 1 auto;}
  .foot-grid{grid-template-columns:1fr;}
  .site-foot{padding-bottom:96px;}
  .mobile-bar{display:flex;}
  .related-row{padding:18px 0;gap:14px;}
  .related-row .go{width:34px;height:34px;}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category3 */
:root{
  --ink:#101215;
  --ink-2:#262A2E;
  --paper:#F6F5F1;
  --surface:#FFFFFF;
  --lime:#C8F535;
  --lime-deep:#A9D500;
  --ember:#FF4A1F;
  --muted:#6B7076;
  --line:#E3E2DC;
  --radius-card:18px;
  --radius-block:24px;
  --radius-img:16px;
  --shadow-1:0 2px 8px rgba(16,18,21,.05);
  --shadow-2:0 18px 40px rgba(16,18,21,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease);}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.2;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media (min-width:1400px){.wrap{max-width:1280px;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--muted);text-transform:uppercase;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--lime-deep);border-radius:2px;}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:1000;
  background:rgba(246,245,241,.92);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.site-head.is-stuck{
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 18px rgba(16,18,21,.06);
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(8px);
}
.head-inner{
  min-height:72px;display:flex;align-items:center;gap:28px;
}
.brand{
  display:flex;align-items:baseline;gap:6px;
  font-size:20px;font-weight:800;letter-spacing:-.02em;white-space:nowrap;
}
.brand em{font-style:normal;font-size:13px;font-weight:700;color:var(--muted);letter-spacing:0;}
.brand .brand-dot{width:8px;height:8px;border-radius:2px;background:var(--lime);display:inline-block;margin-right:8px;transform:translateY(-2px);}
.brand:hover em{color:var(--ink);}
.nav-links{
  display:flex;align-items:center;gap:4px;margin-left:auto;
}
.nav-links a{
  position:relative;display:inline-block;padding:8px 14px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--ink-2);white-space:nowrap;
}
.nav-links a:hover{background:rgba(16,18,21,.05);color:var(--ink);}
.nav-links a.is-active{color:var(--ink);font-weight:800;background:rgba(200,245,53,.28);}
.nav-links a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--lime-deep);border-radius:2px;
}
.head-cta{display:flex;align-items:center;gap:10px;margin-left:8px;}
.head-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--surface);
  border-radius:12px;align-items:center;justify-content:center;font-size:18px;color:var(--ink);cursor:pointer;
}

/* ---------- buttons ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:12px 28px;font-size:15px;font-weight:700;
  border:1.5px solid transparent;cursor:pointer;line-height:1.2;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary-x{background:var(--lime);color:var(--ink);}
.btn-primary-x:hover{background:var(--lime-deep);color:var(--ink);transform:translateY(-1px);}
.btn-primary-x:active{transform:translateY(0);}
.btn-ghost-x{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost-x:hover{background:var(--ink);color:var(--paper);}
.btn-light-x{background:var(--surface);color:var(--ink);}
.btn-light-x:hover{background:var(--lime);color:var(--ink);transform:translateY(-1px);}
.btn-sm-x{padding:9px 20px;font-size:14px;}
.btn-line-x{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-line-x:hover{border-color:var(--ink);background:rgba(16,18,21,.04);}
.link-x{
  display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14px;color:var(--ink);
  background-image:linear-gradient(var(--ink),var(--ink));
  background-repeat:no-repeat;background-size:0% 1px;background-position:0 100%;
  padding-bottom:2px;transition:background-size .2s var(--ease),color .18s var(--ease);
}
.link-x:hover{background-size:100% 1px;}
.link-x i{font-size:12px;transition:transform .2s var(--ease);}
.link-x:hover i{transform:translateX(3px);}

/* ---------- breadcrumb ---------- */
.crumb{padding:22px 0 0;font-size:13px;color:var(--muted);}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:#B9B8B2;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--ink);}
.crumb [aria-current]{color:var(--ink);font-weight:700;}

/* ---------- page hero ---------- */
.page-hero{padding:26px 0 44px;}
.page-hero .hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:48px;align-items:end;}
.page-hero h1{
  font-size:clamp(30px,3.6vw,46px);font-weight:900;line-height:1.12;letter-spacing:-.02em;margin:14px 0 16px;
}
.page-hero h1 .hl{
  display:inline-block;padding:0 6px;background:linear-gradient(transparent 62%,var(--lime) 62%);border-radius:2px;
}
.page-hero .lede{font-size:16px;color:var(--muted);max-width:640px;line-height:1.8;}
.hero-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line);}
.hero-facts div{
  border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:16px 18px;background:rgba(255,255,255,.55);
}
.hero-facts b{
  display:block;font-size:clamp(24px,2.6vw,32px);font-weight:900;font-variant-numeric:tabular-nums;line-height:1.1;
}
.hero-facts span{font-size:12px;color:var(--muted);font-weight:600;}

/* ---------- section ---------- */
.section{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:800;margin-top:10px;}
.section-head p{color:var(--muted);font-size:15px;max-width:520px;margin-top:10px;}

/* ---------- steps ---------- */
.steps{display:flex;flex-direction:column;gap:52px;counter-reset:step;}
.step{
  display:grid;grid-template-columns:150px minmax(0,1fr);gap:36px;align-items:start;
  padding-bottom:44px;border-bottom:1px solid var(--line);
}
.step:last-child{border-bottom:0;padding-bottom:0;}
.step-num{
  font-size:104px;line-height:.82;font-weight:900;letter-spacing:-.04em;
  color:transparent;-webkit-text-stroke:2px #D6D4CC;font-variant-numeric:tabular-nums;user-select:none;
}
.step.is-now .step-num{color:var(--lime);-webkit-text-stroke:0;}
.step-body h3{font-size:clamp(20px,2.2vw,24px);font-weight:800;margin:8px 0 12px;}
.step-body p{color:var(--ink-2);font-size:16px;line-height:1.85;max-width:720px;}
.step-body .dot-list{margin-top:16px;display:flex;flex-direction:column;gap:8px;}
.dot-list li{position:relative;padding-left:20px;font-size:14.5px;color:var(--muted);}
.dot-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;background:var(--ink);border-radius:1px;
}
.step-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;color:var(--ink);
  background:rgba(16,18,21,.05);border-radius:6px;padding:4px 10px;
}
.step-tag.is-hot{background:rgba(255,74,31,.1);color:var(--ember);}

/* ---------- banner ---------- */
.banner{
  position:relative;margin:56px 0;border-radius:var(--radius-block);overflow:hidden;
  border:1px solid var(--line);background:var(--ink);
}
.banner img{width:100%;height:clamp(220px,32vw,380px);object-fit:cover;opacity:.92;}
.banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(16,18,21,.86) 0%,rgba(16,18,21,.42) 46%,rgba(16,18,21,.06) 100%);
}
.banner-cap{
  position:absolute;left:0;bottom:0;z-index:2;padding:32px;max-width:640px;color:#fff;
}
.banner-cap h3{font-size:clamp(20px,2.6vw,28px);font-weight:800;line-height:1.25;color:#fff;}
.banner-cap p{margin-top:10px;font-size:14.5px;color:rgba(255,255,255,.78);line-height:1.75;}

/* ---------- note block ---------- */
.note-block{
  background:var(--ink);color:#fff;border-radius:var(--radius-block);padding:40px;
  display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:40px;align-items:start;
}
.note-block h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;color:#fff;line-height:1.3;}
.note-block .note-sub{margin-top:12px;font-size:14px;color:rgba(255,255,255,.66);line-height:1.8;}
.note-list{display:flex;flex-direction:column;gap:16px;}
.note-list li{display:flex;gap:14px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.86);line-height:1.75;}
.note-list i{color:var(--lime);font-size:14px;margin-top:6px;}

/* ---------- entry cards ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.entry-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(16,18,21,.12);}
.entry-thumb{position:relative;aspect-ratio:16/10;background:var(--paper);overflow:hidden;}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.entry-card:hover .entry-thumb img{transform:scale(1.03);}
.entry-thumb .badge-x{
  position:absolute;top:12px;left:12px;background:var(--ink);color:#fff;font-size:12px;font-weight:700;
  border-radius:6px;padding:4px 10px;letter-spacing:.02em;
}
.entry-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1;}
.entry-body h3{font-size:17px;font-weight:800;line-height:1.4;}
.entry-body p{font-size:13.5px;color:var(--muted);line-height:1.7;}
.entry-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.entry-meta .go{
  width:30px;height:30px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;color:var(--ink);
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.entry-card:hover .entry-meta .go{background:var(--lime);border-color:var(--lime);}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 0;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16.5px;font-weight:700;color:var(--ink-2);line-height:1.5;
}
.faq-q:hover{color:var(--ink);}
.faq-item.is-open .faq-q{color:var(--ink);font-weight:800;}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px;transition:transform .2s ease;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink);border-radius:2px;transform:translate(-50%,-50%);
}
.faq-icon::before{width:16px;height:2px;}
.faq-icon::after{width:2px;height:16px;transition:opacity .2s ease;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{display:none;padding:0 40px 22px 0;font-size:15px;line-height:1.85;color:var(--muted);max-width:720px;}
.faq-item.is-open .faq-a{display:block;}

/* ---------- cta band ---------- */
.cta-band{padding:0 0 88px;}
.cta-inner{
  background:var(--ink);border-radius:var(--radius-block);padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-inner h2{color:#fff;font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.2;}
.cta-inner p{margin-top:12px;color:rgba(255,255,255,.7);font-size:15px;max-width:520px;line-height:1.8;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-foot{background:#0B0D10;color:rgba(255,255,255,.72);padding:64px 0 28px;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.foot-brand{color:#fff;font-size:20px;font-weight:800;letter-spacing:-.02em;display:flex;align-items:baseline;gap:6px;}
.foot-brand em{font-style:normal;font-size:13px;font-weight:700;color:rgba(255,255,255,.5);}
.foot-desc{margin-top:14px;font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.56);max-width:340px;}
.foot-col h4{font-size:13px;font-weight:800;letter-spacing:.08em;color:#fff;margin-bottom:16px;text-transform:uppercase;}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col a{font-size:14px;color:rgba(255,255,255,.66);}
.foot-col a:hover{color:var(--lime);text-decoration:underline;text-underline-offset:4px;}
.foot-note{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.56);}
.foot-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.46);
}
.foot-bottom a{color:rgba(255,255,255,.6);}
.foot-bottom a:hover{color:var(--lime);}

/* ---------- mobile bar ---------- */
.mobile-cta{display:none;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .page-hero .hero-grid{grid-template-columns:minmax(0,1fr) 300px;gap:32px;}
}
@media (max-width:991px){
  .wrap{padding:0 20px;}
  .nav-links{
    position:fixed;inset:72px 0 auto 0;flex-direction:column;align-items:stretch;gap:2px;
    background:var(--surface);border-bottom:1px solid var(--line);
    padding:16px 20px 24px;box-shadow:var(--shadow-2);
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease;
  }
  .nav-links.is-open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .nav-links a{padding:13px 12px;border-radius:12px;font-size:16px;}
  .nav-links a.is-active{background:rgba(200,245,53,.28);}
  .nav-links a.is-active::after{display:none;}
  .head-toggle{display:inline-flex;}
  .head-cta .btn-ghost-x{display:none;}
  .page-hero .hero-grid{grid-template-columns:1fr;align-items:start;}
  .hero-facts{max-width:520px;}
  .step{grid-template-columns:96px minmax(0,1fr);gap:24px;}
  .step-num{font-size:72px;}
  .note-block{grid-template-columns:1fr;gap:28px;padding:32px;}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{padding:36px;}
}
@media (max-width:575px){
  body{padding-bottom:72px;}
  .section{padding:48px 0;}
  .site-head{position:sticky;}
  .head-inner{min-height:64px;gap:12px;}
  .brand{font-size:17px;}
  .brand em{display:none;}
  .head-cta .btn-primary-x{padding:10px 18px;font-size:13.5px;}
  .page-hero{padding:18px 0 32px;}
  .hero-facts{grid-template-columns:1fr 1fr;}
  .step{grid-template-columns:1fr;gap:12px;padding-bottom:32px;}
  .step-num{font-size:56px;}
  .steps{gap:36px;}
  .banner{margin:36px 0;}
  .banner-cap{padding:20px;}
  .entry-grid{grid-template-columns:1fr;}
  .cta-inner{padding:28px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-x{flex:1 1 auto;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  .mobile-cta{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:1100;gap:10px;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    background:rgba(255,255,255,.95);border-top:1px solid var(--line);backdrop-filter:blur(8px);
  }
  .mobile-cta .btn-x{flex:1;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;}
}

/* roulang page: category4 */
:root{
  --ink:#101215;
  --ink-2:#262A2E;
  --paper:#F6F5F1;
  --surface:#FFFFFF;
  --lime:#C8F535;
  --lime-deep:#A9D500;
  --ember:#FF4A1F;
  --muted:#6B7076;
  --line:#E3E2DC;
  --r-card:18px;
  --r-block:24px;
  --r-img:16px;
  --r-badge:6px;
  --sh-1:0 2px 8px rgba(16,18,21,.05);
  --sh-2:0 18px 40px rgba(16,18,21,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
button{font:inherit;color:inherit;background:none;border:0}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}
@media (min-width:1400px){.wrap{max-width:1280px}}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;line-height:1;
  padding:13px 28px;border-radius:999px;
  border:1.5px solid transparent;
  cursor:pointer;text-align:center;white-space:nowrap;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.btn-main{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.btn-main:hover{background:var(--lime-deep);border-color:var(--lime-deep);color:var(--ink);transform:translateY(-1px)}
.btn-main:active{transform:translateY(0)}
.btn-line{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-line:hover{background:var(--ink);border-color:var(--ink);color:var(--paper);transform:translateY(-1px)}
.btn-white{background:#fff;border-color:#fff;color:var(--ink)}
.btn-white:hover{background:var(--lime);border-color:var(--lime);color:var(--ink);transform:translateY(-1px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--ink);
  padding:0 0 2px;border:0;background:none;cursor:pointer;
  background-image:linear-gradient(var(--ink),var(--ink));
  background-repeat:no-repeat;
  background-position:left 100%;
  background-size:0 1.5px;
  transition:background-size .25s var(--ease),color .18s var(--ease);
}
.btn-text:hover{background-size:100% 1.5px}
.btn-text:focus-visible{outline:2px solid var(--lime);outline-offset:3px}

/* ---------- 头部导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,241,.94);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.site-head.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(16,18,21,.06)}
.head-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .2s var(--ease)}
.site-head.is-scrolled .head-inner{height:64px}
.brand{display:flex;align-items:baseline;gap:7px;font-size:19px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
.brand em{font-style:normal;font-size:12.5px;font-weight:700;color:var(--muted);letter-spacing:0}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links a{
  position:relative;display:inline-block;
  padding:10px 14px;font-size:15px;font-weight:500;color:var(--ink-2);
  border-radius:8px;
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-links a:hover{color:var(--ink);background:rgba(16,18,21,.055)}
.nav-links a.is-active{color:var(--ink);font-weight:700}
.nav-links a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
  background:var(--lime-deep);border-radius:2px;
}
.head-cta{display:flex;align-items:center;gap:10px;margin-left:8px}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  border-radius:12px;background:var(--surface);cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--surface);
  padding:16px 0 22px;
}
.nav-drawer.is-open{display:block}
.nav-drawer a.d-link{
  display:block;padding:13px 4px;font-size:16px;font-weight:600;
  color:var(--ink-2);border-bottom:1px solid var(--line);
}
.nav-drawer a.d-link.is-active{color:var(--ink);font-weight:800}
.nav-drawer .d-cta{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.nav-drawer .d-cta .btn{flex:1 1 auto}

/* ---------- 页首 ---------- */
.page-head{padding:40px 0 8px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px}
.crumb a{transition:color .18s var(--ease)}
.crumb a:hover{color:var(--ink)}
.crumb .sep{opacity:.45}
.crumb .cur{color:var(--ink-2);font-weight:600}
.page-head h1{
  font-size:clamp(28px,4.2vw,48px);
  font-weight:900;line-height:1.12;letter-spacing:-.02em;
  max-width:820px;margin-bottom:16px;
}
.h1-mark{
  background-image:linear-gradient(transparent 64%,var(--lime) 64%,var(--lime) 94%,transparent 94%);
  padding:0 2px;
}
.page-head .lead{font-size:16px;color:var(--muted);max-width:660px}

/* ---------- FAQ 主体 ---------- */
.faq-sec{padding:44px 0 0}
.faq-col{max-width:860px;margin:0 auto}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:48px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;font-size:14px;font-weight:600;
  color:var(--ink-2);background:var(--surface);
  border:1px solid var(--line);border-radius:999px;
  transition:transform .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease);
}
.chip:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-1px);box-shadow:var(--sh-1)}
.chip:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--lime-deep)}
.faq-group{margin-bottom:56px;scroll-margin-top:96px}
.group-head{display:flex;align-items:baseline;gap:12px;margin-bottom:8px}
.group-head .idx{
  font-size:13px;font-weight:800;letter-spacing:.08em;
  color:var(--lime-deep);font-variant-numeric:tabular-nums;
}
.group-head h2{font-size:clamp(21px,2.6vw,26px);font-weight:800;letter-spacing:-.01em}
.group-desc{font-size:14px;color:var(--muted);margin-bottom:16px;max-width:660px}
.faq-item{border-top:1px solid var(--line)}
.faq-group .faq-item:last-of-type{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:17px 2px;
  font-size:17px;font-weight:700;line-height:1.5;color:var(--ink-2);
  cursor:pointer;list-style:none;
  transition:color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::marker{content:""}
.faq-item summary:hover{color:var(--ink)}
.faq-item summary:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px}
.faq-mark{position:relative;width:20px;height:20px;flex:0 0 20px;color:var(--ink)}
.faq-mark i{
  position:absolute;left:50%;top:50%;width:14px;height:2px;border-radius:2px;
  background:currentColor;transform:translate(-50%,-50%);
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.faq-mark i:last-child{transform:translate(-50%,-50%) rotate(90deg)}
.faq-item[open] summary{color:var(--ink);font-weight:800}
.faq-item[open] .faq-mark i:last-child{opacity:0;transform:translate(-50%,-50%) rotate(0)}
.faq-a{
  padding:0 2px 22px;max-width:720px;
  font-size:15px;line-height:1.8;color:#3d4247;
}
.faq-a p+p{margin-top:10px}
.help-note{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  margin-top:8px;padding:22px 24px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
}
.help-note p{font-size:14.5px;color:var(--muted);max-width:520px}
.help-note strong{display:block;font-size:16px;font-weight:800;color:var(--ink);margin-bottom:4px}

/* ---------- 相关入口 ---------- */
.rel-sec{padding:64px 0 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.sec-head .eyebrow{
  font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--muted);
  display:flex;align-items:center;gap:8px;margin-bottom:10px;
}
.sec-head .eyebrow::before{content:"";width:18px;height:2px;background:var(--lime-deep);border-radius:2px}
.sec-head h2{font-size:clamp(24px,3vw,32px);font-weight:800;letter-spacing:-.015em;line-height:1.2}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(16,18,21,.12)}
.rel-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--paper);position:relative}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-tag{
  position:absolute;left:12px;top:12px;
  padding:4px 10px;font-size:12px;font-weight:700;letter-spacing:.02em;
  background:rgba(16,18,21,.82);color:#fff;border-radius:var(--r-badge);
}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.rel-body h3{font-size:17px;font-weight:800;margin-bottom:8px;line-height:1.5}
.rel-body p{font-size:13.5px;color:var(--muted);line-height:1.72;margin-bottom:16px}
.rel-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px}
.rel-meta{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.rel-arrow{
  width:34px;height:34px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  color:var(--ink);font-size:14px;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.rel-card:hover .rel-arrow{background:var(--ink);border-color:var(--ink);color:var(--lime)}

/* ---------- 底部 CTA ---------- */
.cta-sec{padding:72px 0 0}
.cta-inner{
  background:var(--ink);color:#fff;border-radius:var(--r-block);
  padding:48px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(22px,3vw,32px);font-weight:800;line-height:1.24;margin-bottom:12px;color:#fff}
.cta-inner p{font-size:14.5px;line-height:1.75;color:rgba(255,255,255,.7);max-width:540px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-inner .btn-line{border-color:rgba(255,255,255,.45);color:#fff}
.cta-inner .btn-line:hover{background:#fff;border-color:#fff;color:var(--ink)}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink);color:#fff;margin-top:88px;padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand{font-size:19px;font-weight:800;letter-spacing:-.02em;display:flex;align-items:baseline;gap:7px;margin-bottom:14px}
.foot-brand em{font-style:normal;font-size:12.5px;font-weight:700;color:rgba(255,255,255,.5)}
.foot-desc{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px}
.foot-col h4{font-size:13px;font-weight:800;letter-spacing:.1em;color:rgba(255,255,255,.55);margin-bottom:16px}
.foot-col ul li{margin-bottom:10px}
.foot-col a{
  font-size:14px;color:rgba(255,255,255,.78);
  transition:color .18s var(--ease);
  border-bottom:1px solid transparent;
}
.foot-col a:hover{color:var(--lime);border-bottom-color:var(--lime)}
.foot-note{font-size:13px;line-height:1.85;color:rgba(255,255,255,.58);max-width:280px}
.foot-bottom{
  margin-top:56px;padding:22px 0 28px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.5);
}
.foot-bottom a{color:rgba(255,255,255,.62);transition:color .18s var(--ease)}
.foot-bottom a:hover{color:var(--lime)}

/* ---------- 移动端固定操作条 ---------- */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.97);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-top:1px solid var(--line);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  align-items:center;justify-content:space-between;gap:12px;
  box-shadow:0 -6px 20px rgba(16,18,21,.07);
}
.mobile-bar-txt strong{display:block;font-size:13.5px;font-weight:800;line-height:1.4}
.mobile-bar-txt span{font-size:11.5px;color:var(--muted);font-variant-numeric:tabular-nums}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .rel-grid{gap:20px}
}
@media (max-width:991px){
  .nav-links,.head-cta{display:none}
  .nav-toggle{display:flex}
  .head-inner{gap:12px}
  .rel-grid{grid-template-columns:1fr;gap:18px}
  .cta-inner{padding:36px 28px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .foot-desc,.foot-note{max-width:none}
}
@media (max-width:767px){
  .wrap{padding:0 20px}
  .page-head{padding:28px 0 4px}
  .faq-sec{padding:32px 0 0}
  .chip-row{margin-bottom:36px}
  .faq-group{margin-bottom:44px}
  .faq-item summary{font-size:16px;padding:16px 2px}
  .rel-sec{padding-top:52px}
  .cta-sec{padding-top:56px}
  .site-foot{margin-top:64px;padding-top:48px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:575px){
  body{padding-bottom:70px}
  .mobile-bar{display:flex}
  .brand{font-size:17px}
  .brand em{font-size:11.5px}
  .help-note{padding:18px 18px;flex-direction:column;align-items:flex-start}
  .cta-inner{padding:28px 22px;border-radius:20px}
  .btn{padding:12px 22px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
}

/* roulang page: category5 */
:root{
  --ink:#101215;
  --ink-2:#262A2E;
  --paper:#F6F5F1;
  --surface:#FFFFFF;
  --lime:#C8F535;
  --lime-deep:#A9D500;
  --ember:#FF4A1F;
  --muted:#6B7076;
  --line:#E3E2DC;
  --r-card:18px;
  --r-block:24px;
  --r-img:16px;
  --r-badge:6px;
  --shadow:0 2px 8px rgba(16,18,21,.05);
  --shadow-hover:0 18px 40px rgba(16,18,21,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.2}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1400px){.wrap{max-width:1280px}}
@media (max-width:991px){.wrap{padding:0 20px}}

/* ===== 顶部公告 ===== */
.announce{background:var(--ink);color:#EDEDE8;font-size:13px;line-height:1.6}
.announce .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px}
.announce .ann-left{display:flex;align-items:center;gap:10px;min-width:0}
.announce .dot{width:6px;height:6px;background:var(--lime);flex:none;display:inline-block}
.announce .ann-left span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.announce a{color:var(--lime);font-weight:700;white-space:nowrap}
.announce a:hover{text-decoration:underline}

/* ===== 导航 ===== */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,241,.93);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.site-head.is-stuck{border-bottom-color:var(--line);box-shadow:0 6px 24px rgba(16,18,21,.06)}
.head-inner{display:flex;align-items:center;gap:28px;min-height:72px;transition:min-height .2s var(--ease)}
.site-head.is-stuck .head-inner{min-height:64px}
.brand{display:inline-flex;align-items:baseline;font-size:20px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
.brand em{font-style:normal;font-weight:700;font-size:12px;color:var(--muted);margin-left:8px;letter-spacing:0}
.nav-links{display:flex;align-items:center;gap:26px;flex:1;margin-left:6px}
.nav-links a{
  position:relative;font-size:15px;font-weight:600;color:var(--ink-2);padding:6px 0;
  transition:color .2s var(--ease);white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--lime);
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink);font-weight:800}
.head-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;align-items:center;justify-content:center;background:var(--surface)}
.nav-toggle span{position:relative;width:16px;height:2px;background:var(--ink);display:block;transition:background .2s}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink);transition:transform .2s var(--ease)}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{transform:translateY(5px) rotate(45deg)}
.nav-toggle.is-open span::after{transform:translateY(-5px) rotate(-45deg)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:12px 28px;font-size:15px;font-weight:700;line-height:1;border:1.5px solid transparent;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn-main{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-main:hover{background:var(--lime-deep);border-color:var(--lime-deep);transform:translateY(-1px)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-light{background:var(--surface);color:var(--ink);border-color:var(--surface)}
.btn-light:hover{background:var(--lime);border-color:var(--lime);transform:translateY(-1px)}
.btn-line-light{background:transparent;color:#F6F5F1;border-color:rgba(246,245,241,.55)}
.btn-line-light:hover{background:#F6F5F1;color:var(--ink);border-color:#F6F5F1}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-lg{padding:15px 34px;font-size:16px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14px;color:var(--ink);
  background-image:linear-gradient(currentColor,currentColor);
  background-size:0 1px;background-position:0 100%;background-repeat:no-repeat;
  transition:background-size .25s var(--ease);
}
.link-arrow:hover{background-size:100% 1px}
.link-arrow svg{transition:transform .2s var(--ease)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ===== 页首 ===== */
.page-head{padding:34px 0 0}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;flex-wrap:wrap}
.crumbs a:hover{color:var(--ink)}
.crumbs .sep{color:#BFBEB8}
.crumbs .cur{color:var(--ink-2);font-weight:600}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--muted);text-transform:none;margin-bottom:14px}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--lime-deep);display:inline-block}
.page-head h1{font-size:clamp(28px,4vw,44px);line-height:1.12;font-weight:900;letter-spacing:-.02em;max-width:920px}
.page-head h1 .hl{background:linear-gradient(transparent 62%,rgba(200,245,53,.75) 62%);padding:0 2px}
.page-head .lede{margin-top:16px;font-size:17px;color:var(--muted);max-width:660px;line-height:1.8}

/* ===== 深色说明块 ===== */
.intro-block{
  margin-top:34px;border-radius:var(--r-block);padding:48px;color:#F2F1EC;overflow:hidden;
  background-color:var(--ink);
  background-image:linear-gradient(104deg,rgba(16,18,21,.97),rgba(16,18,21,.86)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.intro-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:56px;align-items:start}
.intro-block .eyebrow{color:rgba(246,245,241,.62)}
.intro-block .eyebrow::before{background:var(--lime)}
.intro-block h2{font-size:clamp(23px,2.6vw,31px);color:#fff;line-height:1.25}
.intro-block .sub{margin-top:16px;color:#B7B9B4;font-size:15px;line-height:1.8;max-width:400px}
.intro-list li{display:flex;gap:16px;padding:20px 0;border-top:1px solid rgba(246,245,241,.14)}
.intro-list li:first-child{border-top:0;padding-top:0}
.intro-list li:last-child{padding-bottom:0}
.ib-num{flex:none;font-size:13px;font-weight:800;color:var(--lime);letter-spacing:.08em;font-variant-numeric:tabular-nums;padding-top:4px}
.intro-list h3{font-size:16px;color:#fff;margin-bottom:4px;font-weight:700}
.intro-list p{font-size:14px;color:#B7B9B4;line-height:1.75}

/* ===== 对比清单 ===== */
.compare-section{margin-top:72px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:26px;flex-wrap:wrap}
.section-head h2{font-size:clamp(23px,2.8vw,33px);line-height:1.2}
.section-head .sub{font-size:14px;color:var(--muted);margin-top:8px;max-width:560px}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.cmp-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:28px 26px 18px;box-shadow:var(--shadow);transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease)}
.cmp-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(16,18,21,.12)}
.cmp-card.neg{background:#FBFAF5}
.cmp-head{display:flex;align-items:center;gap:10px;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:6px}
.cmp-head .tag-dot{width:8px;height:8px;border-radius:2px;background:var(--lime-deep);flex:none}
.cmp-card.neg .tag-dot{background:var(--ember)}
.cmp-head h3{font-size:18px;font-weight:800}
.cmp-head .cnt{margin-left:auto;font-size:12px;font-weight:700;color:var(--muted);font-variant-numeric:tabular-nums}
.cmp-list li{display:flex;gap:12px;padding:13px 0;font-size:15px;color:var(--ink-2);line-height:1.7;border-bottom:1px solid #EFEEE8}
.cmp-list li:last-child{border-bottom:0}
.ic{flex:none;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;margin-top:4px}
.ic-yes{background:rgba(200,245,53,.5);color:var(--ink)}
.ic-no{background:#EFEDE6;color:var(--ember)}

/* ===== 核对清单 ===== */
.check-section{margin-top:72px}
.check-list{border-top:1px solid var(--line)}
.ck-row{display:grid;grid-template-columns:64px 1fr 130px;gap:24px;align-items:center;padding:24px 0;border-bottom:1px solid var(--line);transition:background .18s var(--ease)}
.ck-row:hover{background:rgba(255,255,255,.7)}
.ck-num{font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--muted);font-variant-numeric:tabular-nums}
.ck-row h3{font-size:17px;font-weight:800;margin-bottom:4px}
.ck-row p{font-size:14px;color:var(--muted);line-height:1.75;max-width:620px}
.ck-val{
  justify-self:end;font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-badge);padding:7px 14px;color:var(--ink-2);white-space:nowrap;
}
.ck-val.warn{color:var(--ember);border-color:rgba(255,74,31,.32);background:rgba(255,74,31,.05)}

/* ===== 相关入口 ===== */
.rel-section{margin-top:72px}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease)}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(16,18,21,.12)}
.rel-media{aspect-ratio:16/10;background:var(--paper);overflow:hidden}
.rel-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.rel-card:hover .rel-media img{transform:scale(1.04)}
.rel-body{padding:20px 22px 24px}
.rel-body h3{font-size:17px;margin:10px 0 6px;line-height:1.4}
.rel-body p{font-size:14px;color:var(--muted);line-height:1.7}
.badge-tag{display:inline-block;font-size:12px;font-weight:700;padding:4px 10px;border-radius:var(--r-badge);background:#EDECE5;color:var(--ink-2)}
.badge-tag.lime{background:rgba(200,245,53,.6);color:#2A3000}
.rel-meta{display:flex;align-items:center;gap:8px;margin-top:14px;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}

/* ===== FAQ ===== */
.faq-section{margin-top:72px}
.faq-wrap{max-width:860px}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:18px 4px;text-align:left;font-size:16px;font-weight:700;color:var(--ink-2);line-height:1.6;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--ink)}
.faq-item.open .faq-q{color:var(--ink);font-weight:800}
.fi{position:relative;width:16px;height:16px;flex:none}
.fi::before,.fi::after{content:"";position:absolute;background:var(--ink);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.fi::before{left:0;right:0;top:7px;height:2px}
.fi::after{top:0;bottom:0;left:7px;width:2px}
.faq-item.open .fi::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s var(--ease)}
.faq-item.open .faq-a{max-height:420px}
.faq-a p{font-size:15px;line-height:1.85;color:var(--muted);max-width:720px;padding:0 4px 20px}

/* ===== CTA ===== */
.cta-section{margin-top:80px;padding-bottom:80px}
.cta-band{background:var(--ink);border-radius:var(--r-block);padding:48px;color:#F6F5F1}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-text h2{font-size:clamp(22px,2.6vw,30px);color:#fff;line-height:1.25}
.cta-text p{margin-top:10px;font-size:15px;color:#B7B9B4;max-width:520px;line-height:1.75}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ===== 页脚 ===== */
.site-foot{background:#0B0D0F;color:#C9CBC6;padding:64px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.foot-brand{font-size:19px;font-weight:800;color:#fff;letter-spacing:-.02em}
.foot-brand em{font-style:normal;font-size:12px;font-weight:700;color:#8E9189;margin-left:8px}
.foot-desc{margin-top:14px;font-size:14px;line-height:1.8;color:#94978F;max-width:340px}
.foot-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.foot-col ul li{margin-bottom:10px}
.foot-col ul li a{font-size:14px;color:#94978F;transition:color .18s var(--ease),border-color .18s var(--ease);border-bottom:1px solid transparent;padding-bottom:1px}
.foot-col ul li a:hover{color:var(--lime);border-bottom-color:var(--lime)}
.foot-note{font-size:14px;line-height:1.8;color:#94978F}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7E817A}
.foot-bottom a{color:#94978F}
.foot-bottom a:hover{color:var(--lime)}

/* ===== 移动底栏 ===== */
.mobile-bar{display:none}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .rel-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:991px){
  .head-inner{min-height:64px;gap:12px}
  .brand{font-size:18px}
  .brand em{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto;order:3}
  .nav-links{
    position:fixed;left:0;right:0;top:0;z-index:55;
    flex-direction:column;align-items:flex-start;gap:2px;
    background:var(--surface);padding:88px 24px 28px;
    transform:translateY(-105%);transition:transform .25s var(--ease);
    box-shadow:0 24px 60px rgba(16,18,21,.16);
  }
  .nav-links.open{transform:translateY(0)}
  .nav-links a{width:100%;padding:14px 0;font-size:17px;border-bottom:1px solid var(--line)}
  .nav-links a::after{display:none}
  .head-actions{display:none}
  .intro-block{padding:34px}
  .intro-grid{grid-template-columns:1fr;gap:32px}
  .compare{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .ck-row{grid-template-columns:48px 1fr;gap:16px}
  .ck-val{grid-column:2;justify-self:start;margin-top:4px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:36px}
}
@media (max-width:767px){
  .announce .wrap{min-height:34px;font-size:12px}
  .announce a{display:none}
  .page-head{padding:24px 0 0}
  .page-head .lede{font-size:15.5px}
  .intro-block{margin-top:24px;padding:28px 22px}
  .compare-section,.check-section,.rel-section,.faq-section{margin-top:52px}
  .rel-grid{grid-template-columns:1fr}
  .cta-section{margin-top:56px;padding-bottom:56px}
  .cta-band{padding:30px 22px;border-radius:var(--r-card)}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  body{padding-bottom:72px}
  .mobile-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;
    gap:10px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    background:rgba(246,245,241,.97);border-top:1px solid var(--line);
    backdrop-filter:blur(8px);
  }
  .mobile-bar .btn{flex:1;padding:12px 14px;font-size:14px}
  .faq-q{font-size:15px;gap:16px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
}