/* roulang page: index */
:root{
  --bg:#0B0A12;--bg-soft:#131120;--surface-dark:#1B1829;--surface-light:#F6F3EC;
  --primary:#C9FF3D;--primary-ink:#122004;--accent:#FF3D7F;--accent-2:#7B5CFF;
  --text:#F3F1FF;--text-2:#A8A2C4;--text-3:#6E6885;--line:rgba(255,255,255,.09);
  --ink:#171528;--ink-2:#5A5570;
  --shadow-card:0 18px 44px rgba(0,0,0,.5);
  --glow-primary:0 10px 28px rgba(201,255,61,.26);
  --r-card:20px;--r-pill:999px;--r-img:14px;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;line-height:1.82;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .16s ease,border-color .16s ease,background-color .16s ease}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:900;letter-spacing:-.4px;line-height:1.24;color:var(--text)}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
svg{flex:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section--tight{padding:64px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--primary);font-weight:700;margin-bottom:14px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,3.4vw,36px)}
.section-head p{color:var(--text-2);max-width:620px;margin-top:10px;font-size:15.5px}
.more-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:700;font-size:15px;border-bottom:1px solid transparent;padding-bottom:2px}
.more-link:hover{border-color:var(--primary)}
.more-link svg{transition:transform .16s ease}
.more-link:hover svg{transform:translateX(3px)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--r-pill);padding:14px 26px;font-size:15.5px;font-weight:800;cursor:pointer;white-space:nowrap;transition:all .18s ease}
.btn--primary{background:var(--primary);color:var(--primary-ink);box-shadow:var(--glow-primary)}
.btn--primary:hover{transform:translateY(-2px);background:#D8FF6A;box-shadow:0 14px 34px rgba(201,255,61,.34)}
.btn--ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn--text{background:none;padding:6px 0;color:var(--primary);font-weight:800}
.btn--text:hover{gap:12px}
.btn--text svg{transition:transform .18s ease}
.btn--text:hover svg{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* 标签 */
.tag{display:inline-flex;align-items:center;gap:6px;border-radius:var(--r-pill);padding:4px 12px;font-size:12.5px;font-weight:700;line-height:1.7}
.tag--primary{background:var(--primary);color:var(--primary-ink)}
.tag--accent{background:transparent;border:1px solid var(--accent);color:var(--accent)}
.tag--violet{background:rgba(123,92,255,.22);color:#C4B6FF}
.tag--muted{background:rgba(255,255,255,.06);color:var(--text-2)}
.tag--ink{background:rgba(23,21,40,.09);color:var(--ink);border:1px solid rgba(23,21,40,.14)}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:100;background:rgba(11,10,18,.86);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:74px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:900;font-size:17px;letter-spacing:-.2px}
.logo:hover{color:var(--primary)}
.logo svg{width:30px;height:30px}
.logo em{font-style:normal;color:var(--text-2);font-weight:700}
.nav-main{display:flex;align-items:center;gap:4px}
.nav-link{display:inline-flex;align-items:center;gap:6px;padding:9px 14px;border-radius:var(--r-pill);font-size:15px;font-weight:700;color:var(--text-2);position:relative}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--text);background:rgba(255,255,255,.07)}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--primary)}
.nav-tools{display:flex;align-items:center;gap:12px}
.mega{position:relative}
.mega-trigger{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:var(--r-pill);border:1px solid var(--line);background:rgba(255,255,255,.03);font-size:14.5px;font-weight:700;color:var(--text);cursor:pointer}
.mega-trigger svg{transition:transform .2s ease}
.mega:hover .mega-trigger,.mega:focus-within .mega-trigger{border-color:var(--primary);color:var(--primary)}
.mega:hover .mega-trigger svg,.mega:focus-within .mega-trigger svg{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:920px;max-width:min(920px,88vw);
  background:var(--surface-dark);border:1px solid var(--line);border-radius:24px;
  box-shadow:var(--shadow-card);padding:26px;display:grid;grid-template-columns:1.1fr 1.3fr .9fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3);font-weight:800;margin-bottom:14px}
.mega-list li a{display:block;padding:8px 10px;border-radius:12px;font-size:15px;font-weight:700;color:var(--text-2)}
.mega-list li a:hover{background:rgba(255,255,255,.06);color:var(--primary)}
.mega-post{display:flex;gap:12px;padding:8px;border-radius:14px;align-items:center}
.mega-post:hover{background:rgba(255,255,255,.06)}
.mega-post img{width:56px;height:56px;border-radius:12px;object-fit:cover}
.mega-post span{display:block;font-size:14.5px;font-weight:700;line-height:1.5}
.mega-post small{color:var(--text-3);font-size:12.5px}
.mega-entry{border:1px solid rgba(201,255,61,.5);border-radius:18px;padding:18px;display:flex;flex-direction:column;justify-content:space-between;gap:14px;background:linear-gradient(160deg,rgba(201,255,61,.1),rgba(123,92,255,.12))}
.mega-entry strong{font-size:16px;font-weight:900}
.mega-entry p{font-size:13.5px;color:var(--text-2);line-height:1.7}
.nav-toggle{display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.04);align-items:center;justify-content:center;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer{position:fixed;inset:74px 0 0 auto;width:min(340px,84vw);background:var(--bg-soft);border-left:1px solid var(--line);padding:24px;transform:translateX(105%);transition:transform .26s ease;z-index:99;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer h4{font-size:13px;letter-spacing:.14em;color:var(--text-3);text-transform:uppercase;margin:22px 0 10px}
.drawer a{display:block;padding:12px 14px;border-radius:14px;font-weight:700;color:var(--text-2)}
.drawer a:hover,.drawer a.is-active{background:rgba(255,255,255,.06);color:var(--text)}
.drawer .btn{width:100%;margin-top:20px}

/* Hero */
.hero{position:relative;overflow:hidden;padding:78px 0 84px;border-bottom:1px solid var(--line)}
.hero::before{content:"";position:absolute;inset:0;background:url("/assets/images/backpic/back-1.png") center/cover no-repeat;opacity:.32}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,10,18,.72) 0%,rgba(11,10,18,.92) 58%,var(--bg) 100%)}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(30px,5vw,54px);margin-bottom:18px}
.hero h1 span{color:var(--primary)}
.hero-lead{font-size:18px;color:var(--text-2);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.hero-pills{display:flex;gap:10px;flex-wrap:wrap}
.phone-card{position:relative;width:100%;max-width:310px;margin-left:auto;aspect-ratio:9/16;border-radius:24px;overflow:hidden;border:1px solid rgba(255,255,255,.14);box-shadow:var(--shadow-card)}
.phone-card img{width:100%;height:100%;object-fit:cover}
.phone-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,10,18,.15) 0%,rgba(11,10,18,.05) 42%,rgba(11,10,18,.88) 100%)}
.phone-top{position:absolute;top:16px;left:16px;right:16px;display:flex;justify-content:space-between;align-items:center;z-index:2;gap:10px}
.phone-bottom{position:absolute;bottom:18px;left:18px;right:18px;z-index:2}
.progress{height:4px;border-radius:4px;background:rgba(255,255,255,.22);overflow:hidden;margin-top:12px}
.progress i{display:block;height:100%;width:68%;border-radius:4px;background:linear-gradient(90deg,var(--primary),var(--accent))}
.phone-bottom strong{font-size:16px;font-weight:900;display:block;margin-top:10px}
.phone-bottom small{color:var(--text-2);font-size:12.5px}

/* 版本速览 */
.snapshot{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:var(--surface-dark);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.snap-item{padding:26px 24px;border-right:1px solid rgba(255,255,255,.06)}
.snap-item:last-child{border-right:none}
.snap-item small{display:block;font-size:13px;color:var(--text-3);letter-spacing:.06em;margin-bottom:8px}
.snap-item strong{font-size:26px;font-weight:900;letter-spacing:-.5px;font-family:"Space Grotesk","Inter",system-ui,sans-serif}
.snap-item span{display:block;font-size:13.5px;color:var(--text-2);margin-top:6px}
.snap-item em{font-style:normal;color:var(--primary)}

/* 横向竖屏卡 */
.reel{display:flex;gap:18px;overflow-x:auto;padding:4px 4px 20px;scroll-snap-type:x mandatory;scrollbar-width:thin}
.reel::-webkit-scrollbar{height:6px}
.reel::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:6px}
.reel-card{position:relative;flex:0 0 208px;aspect-ratio:9/16;border-radius:var(--r-card);overflow:hidden;scroll-snap-align:start;border:1px solid var(--line);transition:transform .2s ease,border-color .2s ease}
.reel-card:hover{transform:translateY(-4px);border-color:rgba(201,255,61,.5)}
.reel-card img{width:100%;height:100%;object-fit:cover}
.reel-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,10,18,0) 42%,rgba(11,10,18,.9) 100%)}
.reel-body{position:absolute;left:14px;right:14px;bottom:14px;z-index:2}
.reel-body strong{display:block;font-size:15px;font-weight:900;margin-bottom:8px}
.reel-nav{display:flex;gap:10px}
.reel-nav button{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.reel-nav button:hover{border-color:var(--primary);color:var(--primary)}

/* 种草清单 */
.light-block{background:var(--surface-light);color:var(--ink);border-radius:28px;padding:46px 40px}
.light-block h2{color:var(--ink)}
.light-block .eyebrow{color:#6C7A14}
.light-block .section-head p{color:var(--ink-2)}
.pick-list{display:flex;flex-direction:column}
.pick{display:grid;grid-template-columns:56px 92px 1fr auto;gap:20px;align-items:center;padding:20px 0;border-top:1px solid rgba(23,21,40,.1)}
.pick:first-child{border-top:none}
.pick-num{font-family:"Space Grotesk","Inter",system-ui,sans-serif;font-size:22px;font-weight:900;color:#8A9300}
.pick img{width:92px;height:70px;object-fit:cover;border-radius:12px}
.pick h3{font-size:18px;color:var(--ink);margin-bottom:6px}
.pick p{font-size:14.5px;color:var(--ink-2);margin:0}
.pick-link{font-size:14.5px;font-weight:800;color:#4A5410;border-bottom:1px solid rgba(74,84,16,.35);padding-bottom:2px}
.pick-link:hover{color:#111827;border-color:#111827}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{display:flex;flex-direction:column;background:var(--surface-dark);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.news-card:hover{transform:translateY(-4px);border-color:rgba(201,255,61,.5);box-shadow:var(--shadow-card)}
.news-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#100E1C}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-thumb .tag{position:absolute;top:12px;left:12px}
.news-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:17.5px;line-height:1.5}
.news-body p{font-size:14.5px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.empty-state{border:1px dashed rgba(255,255,255,.2);border-radius:var(--r-card);padding:54px 24px;text-align:center;color:var(--text-2)}
.empty-state p{margin-bottom:18px}

/* 口碑 */
.voices{display:flex;gap:16px;overflow-x:auto;padding:4px 4px 18px;scroll-snap-type:x mandatory}
.voice{flex:0 0 300px;scroll-snap-align:start;background:var(--surface-dark);border:1px solid var(--line);border-radius:18px;padding:20px}
.voice-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(140deg,var(--accent-2),var(--accent));display:flex;align-items:center;justify-content:center;font-weight:900;font-size:15px;color:#fff}
.voice-head strong{display:block;font-size:15px}
.voice-head small{color:var(--text-3);font-size:12.5px}
.voice p{font-size:14.5px;color:var(--text-2);margin:0 0 14px}
.stars{display:inline-flex;gap:3px;color:var(--primary);font-size:13px}

/* CTA 条 */
.cta-bar{background:linear-gradient(105deg,rgba(201,255,61,.9),rgba(123,92,255,.85));border-radius:26px;padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;color:#101525}
.cta-bar h2{color:#0E1220;font-size:clamp(22px,2.8vw,32px)}
.cta-bar p{color:rgba(14,18,32,.78);font-size:15.5px;margin-top:8px;max-width:640px}
.cta-bar .btn--primary{background:#0E1220;color:#C9FF3D;box-shadow:none}
.cta-bar .btn--primary:hover{background:#171C2E;box-shadow:0 14px 30px rgba(14,18,32,.3)}

/* FAQ */
.faq{max-width:900px;margin:0 auto}
.faq details{background:var(--surface-dark);border:1px solid var(--line);border-radius:16px;margin-bottom:12px;overflow:hidden}
.faq details[open]{border-color:rgba(201,255,61,.42)}
.faq summary{list-style:none;cursor:pointer;padding:20px 24px;font-size:16.5px;font-weight:800;display:flex;align-items:center;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";width:10px;height:10px;border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);transform:rotate(45deg);transition:transform .22s ease;flex:none}
.faq details[open] summary::after{transform:rotate(-135deg)}
.faq .faq-body{padding:0 24px 22px;color:var(--text-2);font-size:15.5px}

/* 页脚 */
.site-footer{background:#08070F;border-top:1px solid var(--line);margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding:64px 0 40px}
.footer-grid h4{font-size:14px;font-weight:800;margin-bottom:16px;color:var(--text)}
.footer-brand p{font-size:14.5px;color:var(--text-2);max-width:340px;margin-top:14px}
.footer-grid li{margin-bottom:10px}
.footer-grid li a,.footer-grid li span{font-size:14.5px;color:var(--text-2)}
.footer-grid li a:hover{color:var(--primary)}
.footer-bottom{border-top:1px solid var(--line);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:var(--text-3)}

@media (max-width:1279px){
  .hero-grid{grid-template-columns:1fr .8fr;gap:38px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .mega-panel{grid-template-columns:1fr 1fr;width:720px}
  .mega-entry{display:none}
}
@media (max-width:1023px){
  .nav-main{display:none}
  .mega{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:68px 0}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr}
  .phone-card{margin:0 auto;max-width:270px}
  .snapshot{grid-template-columns:repeat(2,1fr)}
  .snap-item:nth-child(2){border-right:none}
  .snap-item:nth-child(1),.snap-item:nth-child(2){border-bottom:1px solid rgba(255,255,255,.06)}
  .pick{grid-template-columns:44px 84px 1fr;gap:16px}
  .pick-link{grid-column:2 / -1;justify-self:start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 32px}
}
@media (max-width:639px){
  .container{padding:0 18px}
  body{font-size:16px}
  .section{padding:48px 0}
  .hero h1{font-size:clamp(26px,7.4vw,34px)}
  .hero-lead{font-size:16.5px}
  .hero-actions .btn{width:100%}
  .phone-card{width:66vw}
  .snapshot{grid-template-columns:1fr}
  .snap-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.06)}
  .lite-block,.light-block{padding:30px 20px;border-radius:22px}
  .pick{grid-template-columns:1fr;gap:12px}
  .pick img{width:100%;height:150px}
  .pick-num{font-size:18px}
  .news-grid{grid-template-columns:1fr}
  .reel-card{flex:0 0 62vw}
  .voice{flex:0 0 84vw}
  .cta-bar{padding:28px 22px}
  .cta-bar .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --bg:#0B0A12; --bg-soft:#131120; --surface-dark:#1B1829; --surface-light:#F6F3EC;
  --primary:#C9FF3D; --primary-ink:#122004; --accent:#FF3D7F; --accent-2:#7B5CFF;
  --text:#F3F1FF; --text-2:#A8A2C4; --text-3:#6E6885; --line:rgba(255,255,255,.09);
  --shadow-card:0 18px 44px rgba(0,0,0,.5); --glow-primary:0 10px 28px rgba(201,255,61,.26);
  --r-card:20px; --r-pill:999px; --r-img:14px;
  --container:1240px; --read:820px;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px; line-height:1.85; letter-spacing:.1px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .16s ease,border-color .16s ease,background-color .16s ease}
a:hover{color:var(--primary)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:800}
p{margin:0 0 14px}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  padding:13px 26px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--primary);color:var(--primary-ink);box-shadow:var(--glow-primary)}
.btn-primary:hover{background:#d8ff66;color:var(--primary-ink);transform:translateY(-2px);box-shadow:0 14px 34px rgba(201,255,61,.34)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-text{background:none;border:none;color:var(--text-2);padding:8px 0;font-weight:700}
.btn-text:hover{color:var(--primary)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,10,18,.88);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:70px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:.2px;white-space:nowrap}
.logo svg{width:30px;height:30px;flex:none}
.logo em{font-style:normal;color:var(--primary);font-weight:700}
.nav-main{display:flex;align-items:center;gap:4px;flex:1;min-width:0}
.nav-link{
  padding:9px 13px;border-radius:var(--r-pill);font-size:14.5px;color:var(--text-2);
  white-space:nowrap;transition:color .16s ease,background-color .16s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--primary);background:rgba(201,255,61,.1)}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.mega{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:7px;
  background:transparent;border:1px solid var(--line);color:var(--text);
  padding:9px 16px;border-radius:var(--r-pill);font-size:14.5px;font-weight:600;cursor:pointer;
  transition:border-color .16s ease,color .16s ease;
}
.mega-trigger:hover{border-color:var(--primary);color:var(--primary)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:640px;
  background:var(--surface-dark);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);padding:24px;
  display:grid;grid-template-columns:1fr 1.1fr;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:13px;letter-spacing:.14em;color:var(--text-3);text-transform:uppercase;margin-bottom:14px;font-weight:700}
.mega-list li{margin-bottom:9px}
.mega-list a{font-size:14.5px;color:var(--text-2);display:block;padding:6px 0}
.mega-list a:hover{color:var(--primary);padding-left:4px}
.mega-post{display:flex;gap:12px;align-items:center;padding:8px;border-radius:14px;transition:background-color .16s ease}
.mega-post:hover{background:rgba(255,255,255,.05)}
.mega-post img{width:56px;height:56px;border-radius:12px;object-fit:cover;flex:none}
.mega-post span{font-size:14.5px;font-weight:600;line-height:1.45;display:block}
.mega-post small{display:block;font-size:12.5px;color:var(--text-3);font-weight:400;margin-top:4px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;background:transparent;
  border:1px solid var(--line);color:var(--text);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;padding:52px 0 46px;
  background-image:linear-gradient(180deg,rgba(11,10,18,.86),rgba(11,10,18,.97)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .crumb-current{color:var(--text-2);max-width:560px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{
  font-size:clamp(28px,4.4vw,46px);font-weight:900;letter-spacing:-.5px;
  max-width:920px;margin-bottom:18px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13.5px;color:var(--text-2)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);display:inline-block}
.tag-pill{
  display:inline-flex;align-items:center;padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;border:1px solid var(--accent);color:var(--accent);
}
.tag-pill.is-primary{background:var(--primary);color:var(--primary-ink);border-color:transparent}

/* ---------- 正文 ---------- */
.section{padding:72px 0}
.section-slim{padding:52px 0}
.article-inner{max-width:var(--read);margin:0 auto}
.prose{font-size:16.5px;line-height:1.9;color:var(--text)}
.prose > * + *{margin-top:16px}
.prose h2{
  position:relative;font-size:clamp(21px,2.5vw,27px);font-weight:800;
  margin-top:44px;margin-bottom:16px;padding-left:18px;line-height:1.4;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:1.05em;
  border-radius:4px;background:var(--primary);
}
.prose h3{font-size:20px;font-weight:800;margin-top:32px;margin-bottom:12px;color:var(--text)}
.prose p{color:var(--text-2)}
.prose strong{color:var(--text)}
.prose a{color:var(--primary);border-bottom:1px solid rgba(201,255,61,.4)}
.prose a:hover{color:#d8ff66}
.prose ul,.prose ol{margin:18px 0;padding-left:0}
.prose ul li,.prose ol li{position:relative;padding-left:24px;margin-bottom:10px;color:var(--text-2)}
.prose ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;
  border-radius:2px;background:var(--primary);
}
.prose ol{counter-reset:item}
.prose ol li{counter-increment:item}
.prose ol li::before{
  content:counter(item);position:absolute;left:0;top:.12em;
  font-size:12.5px;font-weight:800;color:var(--primary-ink);background:var(--primary);
  width:18px;height:18px;border-radius:6px;display:flex;align-items:center;justify-content:center;
}
.prose blockquote{
  margin:24px 0;padding:16px 20px;border-left:3px solid var(--accent);
  background:rgba(255,61,127,.07);border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--text-2);font-size:15.5px;
}
.prose img{border-radius:var(--r-img);margin:22px 0;width:100%;height:auto}
.prose table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:12px 10px;text-align:left;color:var(--text-2)}
.prose th{color:var(--text);font-weight:700;background:rgba(255,255,255,.03)}
.prose code{background:rgba(123,92,255,.16);color:#CFC4FF;padding:2px 7px;border-radius:6px;font-size:14px}

.empty-state{
  border:1px dashed rgba(255,255,255,.22);border-radius:var(--r-card);
  padding:46px 28px;text-align:center;background:var(--bg-soft);
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--text-2);margin-bottom:22px}

/* ---------- 版本速览条 ---------- */
.version-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
.version-item{background:var(--surface-dark);padding:22px 24px;display:flex;flex-direction:column;gap:6px}
.version-item .v-label{font-size:12.5px;letter-spacing:.1em;color:var(--text-3)}
.version-item strong{font-size:23px;font-weight:800;color:var(--text);letter-spacing:-.3px}
.version-item span.v-note{font-size:13px;color:var(--text-2)}
.version-item.is-accent strong{color:var(--primary)}

/* ---------- 板块标题 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{font-size:clamp(22px,3vw,32px);letter-spacing:-.4px}
.section-head p{color:var(--text-2);font-size:15px;margin:8px 0 0;max-width:620px}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{background:var(--surface-light);color:#1A1726;border-radius:var(--r-card);overflow:hidden}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;font-weight:800;font-size:17px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:700;color:#4A4560;
  transition:transform .2s ease,color .2s ease;
}
.faq-item[open] summary::after{content:"–";color:#122004}
.faq-item .faq-body{padding:0 24px 22px;color:#4A4560;font-size:15.5px;line-height:1.8}
.faq-item summary:hover{color:#0B0A12}

/* ---------- 相关推荐 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.related-card{
  display:flex;gap:14px;align-items:center;
  background:var(--surface-dark);border:1px solid var(--line);border-radius:var(--r-card);
  padding:14px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.related-card:hover{transform:translateY(-4px);border-color:rgba(201,255,61,.5);box-shadow:var(--shadow-card);color:inherit}
.related-card img{width:88px;height:88px;border-radius:var(--r-img);object-fit:cover;flex:none}
.related-card span{font-size:15.5px;font-weight:700;line-height:1.5;display:block}
.related-card small{display:block;margin-top:6px;font-size:12.5px;color:var(--text-3);font-weight:400}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(100deg,rgba(201,255,61,.16),rgba(123,92,255,.18) 70%,rgba(255,61,127,.14));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:44px 0;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(21px,2.6vw,29px);margin-bottom:10px}
.cta-inner p{color:var(--text-2);font-size:15.5px;margin:0;max-width:640px}

/* ---------- 页脚 ---------- */
.site-footer{background:#08070F;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand p{color:var(--text-2);font-size:14.5px;line-height:1.85;margin-top:16px;max-width:340px}
.site-footer h4{font-size:14px;font-weight:800;margin-bottom:16px;color:var(--text)}
.site-footer ul li{margin-bottom:11px}
.site-footer ul a,.site-footer ul span{font-size:14px;color:var(--text-2)}
.site-footer ul a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:22px 0 26px;font-size:13.5px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .nav-main{gap:0}
  .nav-link{padding:9px 10px;font-size:14px}
  .mega-panel{width:560px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-toggle{display:inline-flex}
  .nav-main{
    position:fixed;left:0;right:0;top:70px;bottom:0;
    background:var(--bg-soft);flex-direction:column;align-items:stretch;gap:2px;
    padding:18px 24px 60px;overflow-y:auto;
    opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-10px);
    transition:opacity .2s ease,transform .2s ease,visibility .2s;z-index:70;
  }
  body.nav-open .nav-main{opacity:1;visibility:visible;pointer-events:auto;transform:none}
  .nav-link{padding:15px 8px;font-size:16px;border-bottom:1px solid var(--line);border-radius:0}
  .mega{display:none}
  .version-bar{grid-template-columns:repeat(2,1fr)}
  .section{padding:64px 0}
  .section-slim{padding:44px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:767px){
  .article-hero{padding:36px 0 34px}
  .related-grid{grid-template-columns:1fr}
  .section{padding:48px 0}
  .section-slim{padding:36px 0}
  .cta-inner{padding:36px 0}
  .cta-inner .btn{width:100%}
  .prose h2{margin-top:34px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  body{font-size:16px}
  .logo{font-size:16px}
  .version-item{padding:18px}
  .version-item strong{font-size:20px}
  .footer-grid{grid-template-columns:1fr}
  .faq-item summary{padding:16px 18px;font-size:16px}
  .faq-item .faq-body{padding:0 18px 18px}
  .related-card img{width:74px;height:74px}
}

/* roulang page: category1 */
:root{
  --bg:#0B0A12;
  --bg-soft:#131120;
  --surface-dark:#1B1829;
  --surface-light:#F6F3EC;
  --primary:#C9FF3D;
  --primary-ink:#122004;
  --accent:#FF3D7F;
  --accent-2:#7B5CFF;
  --text:#F3F1FF;
  --text-2:#A8A2C4;
  --text-3:#6E6885;
  --line:rgba(255,255,255,.09);
  --shadow-card:0 18px 44px rgba(0,0,0,.5);
  --glow-primary:0 10px 28px rgba(201,255,61,.26);
  --r-card:20px;
  --r-pill:999px;
  --r-img:14px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.82;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .16s ease,border-color .16s ease,opacity .16s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:900;letter-spacing:-.4px;line-height:1.28}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(11,10,18,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:74px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:900;font-size:18px;letter-spacing:-.2px;white-space:nowrap}
.logo svg{width:30px;height:30px;flex:none}
.logo em{font-style:normal;color:var(--primary)}
.nav-main{display:flex;align-items:center;gap:2px;flex:1;min-width:0}
.nav-link{
  position:relative;padding:9px 12px;border-radius:10px;font-size:15px;color:var(--text-2);
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--primary)}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--primary);
}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.mega{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border:1px solid var(--line);
  border-radius:var(--r-pill);font-size:14px;color:var(--text-2);background:var(--surface-dark);
  transition:.18s ease;white-space:nowrap;
}
.mega-trigger:hover,.mega:hover .mega-trigger,.mega:focus-within .mega-trigger{color:var(--primary);border-color:rgba(201,255,61,.5)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:min(940px,calc(100vw - 56px));
  display:grid;grid-template-columns:1fr 1.3fr .95fr;gap:26px;
  background:var(--surface-dark);border:1px solid var(--line);border-radius:22px;
  padding:26px;box-shadow:0 34px 80px rgba(0,0,0,.62);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .22s ease,transform .22s cubic-bezier(.2,.7,.3,1),visibility .22s;
  z-index:90;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:13px;letter-spacing:.08em;color:var(--text-3);text-transform:uppercase;margin-bottom:14px;font-weight:800}
.mega-list li+li{margin-top:4px}
.mega-list a{display:block;padding:8px 10px;border-radius:10px;font-size:14.5px;color:var(--text-2)}
.mega-list a:hover{background:rgba(255,255,255,.06);color:var(--primary)}
.mega-post{display:flex;gap:12px;align-items:center;padding:8px;border-radius:14px}
.mega-post:hover{background:rgba(255,255,255,.06)}
.mega-post img{width:64px;height:44px;object-fit:cover;flex:none;border-radius:10px}
.mega-post span{font-size:14.5px;color:var(--text);display:block;line-height:1.5}
.mega-post small{display:block;color:var(--text-3);font-size:12.5px;margin-top:3px}
.mega-card{
  border:1px solid rgba(201,255,61,.45);border-radius:16px;padding:18px;
  background:linear-gradient(160deg,rgba(201,255,61,.12),rgba(123,92,255,.12));
}
.mega-card strong{display:block;font-size:16px;margin-bottom:6px}
.mega-card p{font-size:13.5px;color:var(--text-2);margin-bottom:12px}
.mega-card a{font-size:13.5px;color:var(--primary);font-weight:700}
.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-dark);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(6,5,12,.7);opacity:0;visibility:hidden;transition:.24s;z-index:88;
}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,360px);z-index:89;
  background:var(--bg-soft);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .28s cubic-bezier(.2,.7,.3,1);
  padding:24px 22px 40px;overflow-y:auto;
}
body.nav-open .mobile-drawer{transform:translateX(0)}
body.nav-open .drawer-mask{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:38px;height:38px;border:1px solid var(--line);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--text-2)}
.drawer-group{margin-bottom:22px}
.drawer-group h4{font-size:12.5px;letter-spacing:.08em;color:var(--text-3);text-transform:uppercase;margin-bottom:10px}
.drawer-group a{display:block;padding:11px 12px;border-radius:12px;font-size:15px;color:var(--text-2);border:1px solid transparent}
.drawer-group a:hover,.drawer-group a.is-active{color:var(--primary);border-color:rgba(201,255,61,.35);background:rgba(201,255,61,.07)}

/* ---------- buttons / pills ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;font-size:15px;font-weight:800;
  padding:13px 24px;border-radius:var(--r-pill);border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn svg{flex:none;transition:transform .18s ease}
.btn-primary{background:var(--primary);color:var(--primary-ink);box-shadow:var(--glow-primary)}
.btn-primary:hover{transform:translateY(-2px);background:#DBFF74;box-shadow:0 14px 34px rgba(201,255,61,.34)}
.btn-outline{border-color:var(--line);color:var(--text);background:rgba(255,255,255,.02)}
.btn-outline:hover{border-color:rgba(201,255,61,.6);color:var(--primary);transform:translateY(-2px)}
.btn-ghost{color:var(--text-2);padding:12px 6px;font-weight:700}
.btn-ghost:hover{color:var(--primary)}
.btn-ghost:hover svg{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none}
.pill{
  display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:700;line-height:1.5;
}
.pill-latest{background:var(--primary);color:var(--primary-ink)}
.pill-accent{border:1px solid rgba(255,61,127,.55);color:#FF9CC0;background:rgba(255,61,127,.09)}
.pill-violet{background:rgba(123,92,255,.2);color:#BFAFFF;border:1px solid rgba(123,92,255,.42)}
.pill-soft{background:rgba(255,255,255,.05);color:var(--text-2);border:1px solid var(--line)}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);padding:56px 0 46px}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(11,10,18,.78) 0%,rgba(11,10,18,.9) 62%,rgba(11,10,18,.98) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.92;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:840px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px}
.crumbs a:hover{color:var(--primary)}
.crumbs span{color:var(--text-3)}
.page-hero h1{font-size:clamp(30px,4.6vw,50px);font-weight:900;letter-spacing:-.8px;margin:16px 0 16px}
.hero-lead{font-size:17px;color:var(--text-2);max-width:660px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:30px}
.filter-bar{display:flex;flex-wrap:wrap;gap:10px}
.filter-bar a,.filter-bar span{
  display:inline-flex;align-items:center;padding:8px 16px;border-radius:var(--r-pill);
  font-size:13.5px;color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:.16s ease;
}
.filter-bar a:hover{color:var(--primary);border-color:rgba(201,255,61,.5)}
.filter-bar .is-on{background:var(--primary);color:var(--primary-ink);border-color:transparent;font-weight:800}

/* ---------- sections ---------- */
.section{padding:84px 0}
.section-soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:34px;max-width:760px}
.section-head .eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--primary);font-weight:800;margin-bottom:12px;
}
.section-head h2{font-size:clamp(24px,3.2vw,34px);margin-bottom:12px}
.section-head p{color:var(--text-2);font-size:16px;margin:0}

/* ---------- compare ---------- */
.compare-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.compare-card{
  position:relative;display:flex;flex-direction:column;gap:14px;
  background:var(--surface-dark);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--shadow-card);transition:transform .2s ease,border-color .2s ease;
}
.compare-card:hover{transform:translateY(-4px);border-color:rgba(201,255,61,.42)}
.compare-card.is-current{
  border-color:rgba(201,255,61,.62);
  background:linear-gradient(165deg,rgba(201,255,61,.1),rgba(27,24,41,.96) 46%);
}
.compare-card .ver-no{font-size:38px;font-weight:900;letter-spacing:-1.4px;font-variant-numeric:tabular-nums}
.compare-card .ver-name{font-size:15px;color:var(--text-2);font-weight:700}
.compare-rows{display:grid;gap:10px;margin:4px 0 6px;border-top:1px solid var(--line);padding-top:16px}
.compare-row{display:flex;justify-content:space-between;gap:14px;font-size:14px}
.compare-row dt{color:var(--text-3)}
.compare-row dd{margin:0;font-weight:700;font-variant-numeric:tabular-nums}
.compare-card .btn{margin-top:auto;justify-content:center}

/* ---------- spec strip ---------- */
.spec-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;margin-top:26px;
}
.spec-item{background:var(--bg-soft);padding:24px 22px}
.spec-item span{display:block;font-size:13px;color:var(--text-3);margin-bottom:8px}
.spec-item strong{font-size:22px;font-weight:900;letter-spacing:-.6px;font-variant-numeric:tabular-nums}
.spec-item strong em{font-style:normal;color:var(--primary);font-size:14px;font-weight:700;margin-left:4px}

/* ---------- spotlight ---------- */
.spotlight{display:grid;grid-template-columns:.95fr 1.05fr;gap:36px;align-items:center}
.spotlight-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line)}
.spotlight-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0}
.spotlight-media .badge-float{
  position:absolute;left:16px;top:16px;
}
.spot-list{display:grid;gap:16px}
.spot-item{display:grid;grid-template-columns:36px 1fr;gap:14px;align-items:start}
.spot-item .num{
  width:36px;height:36px;border-radius:12px;background:rgba(201,255,61,.14);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-weight:900;font-size:14px;
  font-variant-numeric:tabular-nums;
}
.spot-item h3{font-size:18px;margin-bottom:6px}
.spot-item p{color:var(--text-2);font-size:15px;margin:0}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:8px;max-width:900px}
.tl-item{
  position:relative;display:grid;grid-template-columns:36px 1fr;gap:22px;padding-bottom:38px;
}
.tl-item::before{
  content:"";position:absolute;left:17px;top:30px;bottom:-2px;width:2px;
  background:linear-gradient(180deg,rgba(201,255,61,.55),rgba(201,255,61,.05));
}
.tl-item:last-child{padding-bottom:0}
.tl-item:last-child::before{display:none}
.tl-dot{
  width:36px;height:36px;border-radius:50%;background:var(--surface-dark);
  border:1px solid rgba(201,255,61,.45);display:flex;align-items:center;justify-content:center;
  position:relative;z-index:2;
}
.tl-dot::after{content:"";width:10px;height:10px;border-radius:50%;background:var(--primary)}
.tl-item.is-latest .tl-dot{background:var(--primary);border-color:var(--primary);box-shadow:var(--glow-primary)}
.tl-item.is-latest .tl-dot::after{background:var(--primary-ink)}
.tl-body{
  background:var(--surface-dark);border:1px solid var(--line);border-radius:18px;padding:22px 24px;
  transition:transform .2s ease,border-color .2s ease;
}
.tl-body:hover{transform:translateY(-3px);border-color:rgba(201,255,61,.4)}
.tl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:12px}
.tl-meta time{font-size:13.5px;color:var(--text-3);font-variant-numeric:tabular-nums}
.tl-meta .ver{font-size:15px;font-weight:900;letter-spacing:-.3px;font-variant-numeric:tabular-nums}
.tl-body h3{font-size:19px;margin-bottom:8px}
.tl-body p{color:var(--text-2);font-size:15px;margin-bottom:14px}
.tl-link{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:700;color:var(--primary)}
.tl-link svg{transition:transform .18s ease}
.tl-link:hover svg{transform:translateX(3px)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step{
  background:var(--surface-light);color:#15121F;border-radius:var(--r-card);padding:26px 24px;
  box-shadow:0 16px 40px rgba(0,0,0,.34);
}
.step .step-num{
  display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;
  border-radius:12px;background:#15121F;color:var(--primary);font-weight:900;margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:18px;margin-bottom:10px;color:#15121F}
.step p{font-size:15px;color:#4B4659;margin:0}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  background:var(--surface-dark);border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:border-color .18s ease;
}
.faq-item[open]{border-color:rgba(201,255,61,.42)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:17px;font-weight:800;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-ico{
  flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--text-2);
  transition:transform .22s ease,color .18s ease,border-color .18s ease;
}
.faq-item[open] .faq-ico{transform:rotate(45deg);color:var(--primary);border-color:rgba(201,255,61,.5)}
.faq-body{padding:0 24px 22px;color:var(--text-2);font-size:15.5px;border-left:3px solid rgba(201,255,61,.55);margin:0 24px 22px;padding-left:18px}
.faq-body p{margin:0}

/* ---------- cta band ---------- */
.cta-band{
  border-radius:26px;padding:40px 44px;display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;
  background:linear-gradient(105deg,rgba(201,255,61,.22),rgba(123,92,255,.26) 58%,rgba(255,61,127,.18));
  border:1px solid rgba(255,255,255,.12);
}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);margin-bottom:10px}
.cta-band p{color:#DEDAF2;font-size:15.5px;margin:0;max-width:560px}

/* ---------- footer ---------- */
.site-footer{background:#08070E;border-top:1px solid var(--line);padding:64px 0 0;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:34px;padding-bottom:44px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{color:var(--text-2);font-size:14.5px;max-width:340px;margin:0}
.site-footer h4{font-size:14px;font-weight:800;margin-bottom:16px;color:var(--text)}
.site-footer ul li{margin-bottom:10px}
.site-footer ul a,.site-footer ul span{font-size:14px;color:var(--text-2)}
.site-footer ul a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;display:flex;align-items:center;
  justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-link{padding:9px 9px;font-size:14.5px}
  .mega-panel{grid-template-columns:1fr 1.2fr;width:min(720px,calc(100vw - 48px))}
  .mega-card{display:none}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-main{display:none}
  .mega{display:none}
  .nav-toggle{display:flex}
  .section{padding:64px 0}
  .compare-grid{grid-template-columns:1fr 1fr}
  .spec-strip{grid-template-columns:1fr 1fr}
  .spotlight{grid-template-columns:1fr;gap:26px}
  .steps{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:639px){
  body{font-size:16px}
  .container{padding:0 18px}
  .nav-wrap{height:66px}
  .logo{font-size:16.5px}
  .logo svg{width:26px;height:26px}
  .page-hero{padding:40px 0 34px}
  .hero-actions .btn{width:100%;justify-content:center}
  .section{padding:48px 0}
  .compare-grid{grid-template-columns:1fr}
  .spec-strip{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .timeline{max-width:100%}
  .tl-item{grid-template-columns:28px 1fr;gap:14px}
  .tl-dot{width:28px;height:28px}
  .tl-item::before{left:13px}
  .cta-band{padding:28px 22px}
  .cta-band .btn{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .faq-item summary{font-size:16px;padding:18px}
  .faq-body{margin:0 18px 20px;padding-left:14px}
}

/* roulang page: category2 */
:root{
  --bg:#0B0A12;
  --bg-soft:#131120;
  --surface-dark:#1B1829;
  --surface-light:#F6F3EC;
  --primary:#C9FF3D;
  --primary-ink:#122004;
  --accent:#FF3D7F;
  --accent-2:#7B5CFF;
  --text:#F3F1FF;
  --text-2:#A8A2C4;
  --text-3:#6E6885;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.18);
  --shadow-card:0 18px 44px rgba(0,0,0,.5);
  --glow-primary:0 10px 28px rgba(201,255,61,.26);
  --r-card:20px;
  --r-pill:999px;
  --r-img:14px;
  --font-num:"Space Grotesk","Inter","Segoe UI",-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .16s ease,border-color .16s ease,background-color .16s ease}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:var(--primary);color:var(--primary-ink)}

.container{max-width:1240px;margin:0 auto;padding:0 32px}
.section{padding:92px 0}
.section--tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:26px}
.section-head h2{font-size:clamp(24px,3.4vw,36px);font-weight:900;letter-spacing:-.4px;line-height:1.28}
.section-head p{color:var(--text-2);font-size:15.5px;margin-top:10px;max-width:620px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary);font-family:var(--font-num);font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px}
.link-more{color:var(--text-2);font-size:15px;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.link-more svg{transition:transform .18s ease}
.link-more:hover{color:var(--primary)}
.link-more:hover svg{transform:translateX(3px)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-pill);font-weight:700;font-size:15.5px;padding:13px 26px;border:1px solid transparent;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease}
.btn-primary{background:var(--primary);color:var(--primary-ink)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--glow-primary);background:#d6ff67}
.btn-line{border-color:var(--line-strong);color:var(--text)}
.btn-line:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-ghost{padding:8px 4px;color:var(--text-2);border:0}
.btn-ghost:hover{color:var(--primary)}
.btn-ghost svg{transition:transform .18s ease}
.btn-ghost:hover svg{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:var(--r-pill);font-size:12.5px;font-weight:700;padding:4px 12px;letter-spacing:.02em;line-height:1.7}
.badge-new{background:var(--primary);color:var(--primary-ink)}
.badge-accent{border:1px solid var(--accent);color:var(--accent)}
.badge-violet{background:rgba(123,92,255,.22);color:#C3B4FF;border:1px solid rgba(123,92,255,.45)}
.badge-plain{background:rgba(255,255,255,.07);color:var(--text-2);border:1px solid var(--line)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(11,10,18,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;gap:22px;min-height:76px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:-.2px;flex:0 0 auto}
.logo svg{width:32px;height:32px;flex:0 0 auto}
.logo em{font-style:normal;color:var(--primary)}
.nav-main{display:flex;align-items:center;gap:2px;margin-left:6px;flex-wrap:wrap}
.nav-link{position:relative;font-size:15px;color:var(--text-2);padding:9px 12px;border-radius:var(--r-pill);white-space:nowrap}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-link.is-active{color:var(--primary);background:rgba(201,255,61,.08)}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;background:var(--primary);border-radius:2px}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.mega{position:relative}
.mega-trigger{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--text);border:1px solid var(--line-strong);border-radius:var(--r-pill);padding:9px 18px;transition:border-color .18s ease,color .18s ease,background-color .18s ease}
.mega-trigger:hover,.mega:focus-within .mega-trigger{border-color:var(--primary);color:var(--primary)}
.mega:focus-within .mega-trigger svg{transform:rotate(180deg)}
.mega-trigger svg{transition:transform .2s ease}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 16px);width:960px;
  display:grid;grid-template-columns:1fr 1.35fr 1fr;gap:26px;
  background:var(--surface-dark);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow-card);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:14px;font-weight:700;color:var(--text-2);letter-spacing:.08em;margin-bottom:14px}
.mega-list li + li{margin-top:8px}
.mega-list a{font-size:15px;color:var(--text);display:block;padding:6px 0;border-bottom:1px dashed transparent}
.mega-list a:hover{color:var(--primary)}
.mega-post{display:flex;gap:12px;align-items:center;padding:8px;border-radius:14px;transition:background-color .18s ease}
.mega-post + .mega-post{margin-top:6px}
.mega-post:hover{background:rgba(255,255,255,.05)}
.mega-post img{width:62px;height:62px;object-fit:cover;border-radius:12px;flex:0 0 auto}
.mega-post span{font-size:15px;font-weight:600;line-height:1.5}
.mega-post small{display:block;font-size:12.5px;color:var(--text-3);font-weight:400;margin-top:4px}
.mega-entry{border:1px solid var(--primary);border-radius:16px;padding:20px;display:flex;flex-direction:column;justify-content:space-between;gap:16px;background:linear-gradient(160deg,rgba(201,255,61,.12),rgba(123,92,255,.12))}
.mega-entry strong{font-size:16.5px;display:block;line-height:1.5}
.mega-entry p{font-size:13.5px;color:var(--text-2);margin-top:8px}
.mega-entry .btn{padding:10px 18px;font-size:14px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line-strong);border-radius:12px;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer{display:none}

/* ---------- 分类 Hero ---------- */
.hero-cat{
  position:relative;padding:76px 0 56px;border-bottom:1px solid var(--line);
  background-image:linear-gradient(100deg,rgba(11,10,18,.95) 0%,rgba(11,10,18,.78) 46%,rgba(11,10,18,.6) 100%),url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center right;
}
.hero-cat::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
}
.hero-cat .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span.sep{color:var(--text-3)}
.hero-cat h1{font-size:clamp(30px,5vw,54px);font-weight:900;letter-spacing:-.5px;line-height:1.2;max-width:900px}
.hero-cat h1 em{font-style:normal;color:var(--primary)}
.hero-lead{max-width:720px;color:var(--text-2);font-size:17px;margin-top:18px}
.cat-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.tag{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line-strong);border-radius:var(--r-pill);padding:8px 18px;font-size:14.5px;color:var(--text-2);transition:border-color .16s ease,color .16s ease,background-color .16s ease}
.tag:hover{border-color:var(--primary);color:var(--primary)}
.tag.is-on{background:var(--primary);border-color:var(--primary);color:var(--primary-ink);font-weight:700}

/* ---------- 数据条 ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);background:var(--surface-dark);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;margin-top:-40px;position:relative;z-index:5;box-shadow:var(--shadow-card)}
.stat-item{padding:26px 28px;position:relative}
.stat-item + .stat-item{border-left:1px solid var(--line)}
.stat-item + .stat-item::before{content:"";position:absolute;left:-1px;top:26px;width:2px;height:22px;background:var(--primary);border-radius:2px}
.stat-num{font-family:var(--font-num);font-size:34px;font-weight:700;line-height:1.1;letter-spacing:-.5px}
.stat-num small{font-size:15px;font-weight:600;color:var(--text-2);margin-left:4px}
.stat-label{font-size:14px;color:var(--text-2);margin-top:8px}
.stat-item:nth-child(2) .stat-num{color:var(--accent)}

/* ---------- 瀑布流 ---------- */
.waterfall{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.poster-card{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:var(--surface-dark);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.poster-card:hover{transform:translateY(-4px);border-color:rgba(201,255,61,.55);box-shadow:var(--shadow-card)}
.poster-card img{width:100%;aspect-ratio:9/16;object-fit:cover}
.poster-card:nth-child(3n+2) img{aspect-ratio:4/5}
.poster-card:nth-child(3n) img{aspect-ratio:3/4}
.poster-card figcaption{position:absolute;left:0;right:0;bottom:0;padding:20px 18px 18px;background:linear-gradient(180deg,rgba(11,10,18,0) 0%,rgba(11,10,18,.75) 46%,rgba(11,10,18,.95) 100%)}
.poster-card figcaption h3{font-size:18px;font-weight:800;margin-top:10px;line-height:1.4}
.poster-card figcaption p{font-size:13.5px;color:var(--text-2);margin-top:6px}

/* ---------- 排行 ---------- */
.rank-panel{background:var(--surface-dark);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.rank-item{display:grid;grid-template-columns:56px 116px minmax(0,1fr) 150px 84px;align-items:center;gap:18px;padding:18px 24px;border-bottom:1px solid var(--line);transition:background-color .18s ease}
.rank-item:last-child{border-bottom:0}
.rank-item:hover{background:rgba(255,255,255,.04)}
.rank-num{font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--text-3);line-height:1}
.rank-item:nth-child(1) .rank-num{color:var(--primary)}
.rank-item:nth-child(2) .rank-num{color:var(--accent)}
.rank-name{font-size:16.5px;font-weight:700}
.rank-desc{font-size:14.5px;color:var(--text-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.heat{height:6px;border-radius:99px;background:rgba(255,255,255,.08);overflow:hidden}
.heat i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--primary),var(--accent))}
.rank-score{font-family:var(--font-num);font-size:17px;font-weight:700;text-align:right;color:var(--text)}

/* ---------- 入口 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.entry-card{background:var(--surface-dark);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;transition:transform .2s ease,border-color .2s ease}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(201,255,61,.5)}
.entry-icon{width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:rgba(123,92,255,.22);color:#C3B4FF;margin-bottom:18px}
.entry-card h3{font-size:18px;font-weight:800}
.entry-card p{font-size:14.5px;color:var(--text-2);margin-top:10px}
.entry-card .link-more{margin-top:16px;font-size:14px}

/* ---------- 口碑 ---------- */
.voices{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.voice{background:var(--surface-light);color:#1A1726;border-radius:var(--r-card);padding:24px}
.voice-top{display:flex;align-items:center;gap:12px}
.avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(140deg,var(--accent-2),var(--accent));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:15px;font-family:var(--font-num)}
.voice-top strong{font-size:15.5px;display:block}
.voice-top small{color:#5C5670;font-size:12.5px}
.voice p{margin-top:14px;font-size:15px;color:#33304A;line-height:1.75}
.voice .badge{margin-top:16px;background:rgba(123,92,255,.14);border:1px solid rgba(123,92,255,.35);color:#4B39B8}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px}
.faq-item{background:var(--surface-dark);border:1px solid var(--line);border-radius:16px;padding:0 24px;transition:border-color .18s ease}
.faq-item[open]{border-color:rgba(201,255,61,.45)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 0;font-size:17px;font-weight:700}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"";width:11px;height:11px;border-right:2px solid var(--text-2);border-bottom:2px solid var(--text-2);transform:rotate(45deg);transition:transform .2s ease,border-color .2s ease;flex:0 0 auto;margin-top:-5px}
.faq-item[open] summary::after{transform:rotate(-135deg);margin-top:5px;border-color:var(--primary)}
.faq-item summary:hover{color:var(--primary)}
.faq-item p{padding:0 0 22px;color:var(--text-2);font-size:15.5px;max-width:900px}

/* ---------- CTA ---------- */
.cta-band{background:linear-gradient(100deg,rgba(201,255,61,.2),rgba(123,92,255,.26));border:1px solid var(--line-strong);border-radius:26px;padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,3vw,32px);font-weight:900;letter-spacing:-.3px}
.cta-band p{color:var(--text-2);margin-top:10px;font-size:15.5px;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:#08070E;border-top:1px solid var(--line);padding:70px 0 0;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;padding-bottom:48px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{color:var(--text-2);font-size:14.5px;max-width:340px}
.site-footer h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text)}
.site-footer li + li{margin-top:10px}
.site-footer li a,.site-footer li span{font-size:14px;color:var(--text-2)}
.site-footer li a:hover{color:var(--primary)}
.footer-bottom{border-top:1px solid var(--line);padding:22px 0 30px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:var(--text-3)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .mega-panel{width:780px;grid-template-columns:1fr 1.2fr}
  .mega-entry{grid-column:1 / -1}
  .waterfall{grid-template-columns:repeat(3,1fr);gap:18px}
  .nav-link{padding:9px 9px;font-size:14.5px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .nav-main{display:none}
  .nav-toggle{display:flex}
  .mega{display:none}
  .waterfall{grid-template-columns:repeat(2,1fr)}
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .voices{grid-template-columns:1fr 1fr}
  .stat-strip{grid-template-columns:1fr 1fr}
  .stat-item:nth-child(3){border-left:0}
  .stat-item:nth-child(3)::before,.stat-item:nth-child(4)::before{display:none}
  .stat-item:nth-child(n+3){border-top:1px solid var(--line)}
  .rank-item{grid-template-columns:44px 96px minmax(0,1fr) 84px;gap:14px;padding:16px 18px}
  .rank-item .heat{display:none}
  .drawer{display:block;position:fixed;inset:76px 0 0 auto;width:min(340px,86vw);background:var(--bg-soft);border-left:1px solid var(--line);padding:26px 24px;overflow-y:auto;transform:translateX(100%);transition:transform .24s ease;z-index:90}
  body.drawer-open .drawer{transform:translateX(0)}
  body.drawer-open{overflow:hidden}
  .drawer h4{font-size:13px;letter-spacing:.1em;color:var(--text-3);margin:22px 0 12px}
  .drawer h4:first-child{margin-top:0}
  .drawer a{display:block;font-size:16px;padding:12px 0;border-bottom:1px solid var(--line)}
  .drawer a.is-active{color:var(--primary)}
  .drawer .btn{width:100%;margin-top:26px}
}
@media (max-width:639px){
  .container{padding:0 18px}
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  body{font-size:16px}
  .hero-cat{padding:56px 0 44px}
  .hero-lead{font-size:16px}
  .waterfall{grid-template-columns:1fr;gap:16px}
  .poster-card img,.poster-card:nth-child(3n+2) img,.poster-card:nth-child(3n) img{aspect-ratio:3/4}
  .entry-grid{grid-template-columns:1fr}
  .voices{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr;margin-top:-28px}
  .stat-item{border-left:0 !important;padding:20px 22px}
  .stat-item + .stat-item{border-top:1px solid var(--line)}
  .stat-item::before{display:none !important}
  .rank-item{grid-template-columns:36px minmax(0,1fr) 64px;gap:12px;padding:15px 16px}
  .rank-item .rank-desc{display:none}
  .cta-band{padding:28px 22px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:34px}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category3 */
:root{
  --bg:#0B0A12;
  --bg-soft:#131120;
  --surface-dark:#1B1829;
  --surface-light:#F6F3EC;
  --primary:#C9FF3D;
  --primary-ink:#122004;
  --accent:#FF3D7F;
  --accent-2:#7B5CFF;
  --text:#F3F1FF;
  --text-2:#A8A2C4;
  --text-3:#6E6885;
  --line:rgba(255,255,255,.09);
  --shadow-card:0 18px 44px rgba(0,0,0,.5);
  --glow-primary:0 10px 28px rgba(201,255,61,.26);
  --r-card:20px;
  --r-pill:999px;
  --r-img:14px;
  --wrap:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.8;
  letter-spacing:.1px;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.3px;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .16s ease,border-color .16s ease,background-color .16s ease}
img{max-width:100%;display:block}
button,input{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 32px}
.section{padding:96px 0;position:relative;z-index:1}
.section-head{max-width:760px;margin-bottom:36px}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.6px;
  color:var(--primary);text-transform:uppercase;margin-bottom:14px;
}
.section-head .kicker::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px}
.section-head h2{font-size:clamp(24px,3.4vw,36px);margin-bottom:14px}
.section-head p{color:var(--text-2);font-size:16px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:var(--primary-ink);box-shadow:var(--glow-primary)}
.btn-primary:hover{background:#d9ff6a;transform:translateY(-2px);box-shadow:0 14px 34px rgba(201,255,61,.34)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;padding:0;
  font-size:15px;font-weight:700;color:var(--primary);background:none;border:0;cursor:pointer;
}
.btn-text span{transition:transform .18s ease}
.btn-text:hover span{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.45;transform:none;box-shadow:none;cursor:not-allowed}

/* ---------- tags ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;line-height:1.4;
}
.tag-lime{background:var(--primary);color:var(--primary-ink)}
.tag-outline{border:1px solid var(--accent);color:var(--accent)}
.tag-violet{background:rgba(123,92,255,.2);color:#C7B8FF;border:1px solid rgba(123,92,255,.4)}
.tag-soft{background:rgba(255,255,255,.07);color:var(--text-2);border:1px solid var(--line)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(11,10,18,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  position:relative;
  display:flex;align-items:center;gap:26px;
  min-height:76px;
}
.logo{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto}
.logo svg{width:34px;height:34px;flex:0 0 auto}
.logo span{font-size:19px;font-weight:900;letter-spacing:-.2px;color:var(--text)}
.logo em{font-style:normal;color:var(--primary)}
.nav-main{display:flex;align-items:center;gap:4px;flex:1 1 auto;flex-wrap:wrap}
.nav-link{
  position:relative;padding:10px 14px;border-radius:10px;
  font-size:15px;font-weight:600;color:var(--text-2);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--text);background:rgba(201,255,61,.09)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--primary);border-radius:2px;
}
.nav-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.mega{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  font-size:14.5px;font-weight:600;cursor:pointer;
}
.mega-trigger:hover{border-color:rgba(201,255,61,.55);color:var(--primary)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:900px;max-width:min(900px,calc(100vw - 48px));
  display:grid;grid-template-columns:1fr 1.15fr 1fr;gap:26px;
  padding:26px;
  background:var(--surface-dark);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:13px;letter-spacing:1.4px;color:var(--text-3);font-weight:700;margin-bottom:14px}
.mega-list li + li{margin-top:8px}
.mega-list a{display:block;padding:9px 12px;border-radius:10px;font-size:14.5px;font-weight:600;color:var(--text-2)}
.mega-list a:hover{background:rgba(201,255,61,.1);color:var(--primary)}
.mega-post{display:flex;gap:12px;align-items:center;padding:8px;border-radius:14px}
.mega-post:hover{background:rgba(255,255,255,.05)}
.mega-post img{width:58px;height:58px;border-radius:12px;object-fit:cover;flex:0 0 auto}
.mega-post span{display:flex;flex-direction:column;font-size:14px;font-weight:700;color:var(--text)}
.mega-post small{font-size:12px;font-weight:500;color:var(--text-3);margin-top:3px}
.mega-cta{
  display:flex;flex-direction:column;gap:6px;height:100%;
  padding:18px;border-radius:14px;
  border:1px solid rgba(201,255,61,.5);
  background:linear-gradient(160deg,rgba(201,255,61,.12),rgba(123,92,255,.1));
}
.mega-cta:hover{border-color:var(--primary);transform:translateY(-2px)}
.mega-cta-kicker{font-size:12px;letter-spacing:1.4px;color:var(--primary);font-weight:700}
.mega-cta strong{font-size:16px}
.mega-cta small{color:var(--text-2);font-size:13px;line-height:1.6}
.mega-cta-arrow{margin-top:auto;color:var(--primary);font-weight:900}

.nav-toggle{position:absolute;opacity:0;pointer-events:none;width:0;height:0}
.nav-burger{
  display:none;width:44px;height:44px;flex:0 0 auto;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  border:1px solid var(--line);border-radius:12px;cursor:pointer;background:rgba(255,255,255,.04);
}
.nav-burger i{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease}
.nav-drawer{
  position:fixed;top:0;right:0;z-index:200;
  width:308px;max-width:88vw;height:100vh;overflow-y:auto;
  padding:28px 22px 40px;
  background:var(--bg-soft);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .26s ease;
}
.nav-toggle:checked ~ .nav-drawer{transform:translateX(0)}
.drawer-title{font-size:12px;letter-spacing:1.5px;color:var(--text-3);font-weight:700;margin-bottom:12px}
.drawer-link{display:block;padding:13px 12px;border-radius:12px;font-size:15.5px;font-weight:600;color:var(--text-2);border-bottom:1px solid var(--line)}
.drawer-link:hover{color:var(--primary)}
.drawer-link.is-active{color:var(--text);background:rgba(201,255,61,.1)}

/* ---------- hero ---------- */
.cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.24;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,10,18,.5) 0%,rgba(11,10,18,.9) 62%,var(--bg) 100%);
}
.cat-hero .container{position:relative;z-index:2;padding-top:44px;padding-bottom:64px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:26px;flex-wrap:wrap}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--primary)}
.crumbs span{color:var(--text-3)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);gap:44px;align-items:end}
.hero-copy h1{font-size:clamp(30px,5vw,54px);font-weight:900;letter-spacing:-.5px;margin-bottom:18px}
.hero-copy h1 mark{background:none;color:var(--primary)}
.hero-copy .lede{font-size:17.5px;color:var(--text-2);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-side{
  background:var(--surface-dark);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-card);
}
.hero-side h2{font-size:15px;letter-spacing:1.2px;color:var(--text-3);font-weight:700;margin-bottom:16px}
.hero-side dl{margin:0;display:grid;gap:14px}
.hero-side .row{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding-bottom:12px;border-bottom:1px dashed rgba(255,255,255,.1)}
.hero-side .row:last-child{border-bottom:0;padding-bottom:0}
.hero-side dt{font-size:13.5px;color:var(--text-3)}
.hero-side dd{margin:0;font-size:15px;font-weight:800;color:var(--text)}
.hero-side dd em{font-style:normal;color:var(--primary)}
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.chip{
  display:inline-flex;align-items:center;
  padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  font-size:14px;font-weight:600;color:var(--text-2);
}
.chip.is-on{background:var(--primary);border-color:var(--primary);color:var(--primary-ink)}

/* ---------- flow / masonry ---------- */
.flow{column-count:3;column-gap:22px}
.flow-card{
  position:relative;display:block;break-inside:avoid;
  margin:0 0 22px;border-radius:var(--r-card);overflow:hidden;
  background:var(--surface-dark);border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.flow-card:hover{transform:translateY(-4px);border-color:rgba(201,255,61,.55);box-shadow:var(--shadow-card)}
.flow-card img{width:100%;height:100%;object-fit:cover}
.flow-card .shot{position:relative;display:block}
.ratio-tall .shot{aspect-ratio:9 / 16}
.ratio-mid .shot{aspect-ratio:4 / 5}
.ratio-low .shot{aspect-ratio:1 / 1}
.flow-card .corner{
  position:absolute;top:12px;left:12px;z-index:3;
}
.flow-card .veil{
  position:absolute;inset:auto 0 0 0;z-index:2;height:62%;
  background:linear-gradient(180deg,rgba(11,10,18,0) 0%,rgba(11,10,18,.92) 82%);
}
.flow-card .cap{
  position:absolute;left:0;right:0;bottom:0;z-index:3;
  padding:16px 16px 18px;
}
.flow-card .cap h3{font-size:16.5px;font-weight:800;line-height:1.45}
.flow-card .cap p{font-size:13px;color:var(--text-2);margin-top:6px}

/* ---------- path band ---------- */
.path-band{
  background:var(--surface-light);color:#171326;
  border-radius:28px;padding:46px 42px 40px;
  box-shadow:var(--shadow-card);
}
.path-band .band-head{max-width:680px;margin-bottom:32px}
.path-band .band-head span{
  display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:1.6px;
  color:#5d6b1c;background:rgba(201,255,61,.55);padding:5px 12px;border-radius:var(--r-pill);margin-bottom:14px;
}
.path-band h2{font-size:clamp(22px,3.2vw,32px);color:#171326;margin-bottom:12px}
.path-band .band-head p{color:#4b4560;font-size:16px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{position:relative;padding-top:22px;border-top:2px solid rgba(23,19,38,.14)}
.step::before{
  content:"";position:absolute;top:-2px;left:0;width:38px;height:2px;background:var(--primary-ink);
}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;
  background:var(--primary-ink);color:var(--primary);
  font-size:14px;font-weight:800;margin-bottom:14px;
}
.step h3{font-size:17.5px;color:#171326;margin-bottom:8px}
.step p{font-size:14.5px;color:#514a66;line-height:1.75}

/* ---------- points ---------- */
.points{display:grid;grid-template-columns:repeat(2,1fr);gap:0 44px}
.point{padding:26px 0;border-bottom:1px solid var(--line)}
.point-top{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.point-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;flex:0 0 auto;border-radius:9px;
  background:rgba(123,92,255,.22);border:1px solid rgba(123,92,255,.45);
  color:#C7B8FF;font-size:13px;font-weight:800;
}
.point h3{font-size:18px}
.point p{color:var(--text-2);font-size:15.5px}
.point .meta{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:44px;align-items:start}
.faq-grid .section-head{margin-bottom:0}
.qa-list{display:grid;gap:14px}
.qa{
  background:var(--surface-dark);border:1px solid var(--line);
  border-radius:16px;overflow:hidden;
}
.qa[open]{border-color:rgba(201,255,61,.4)}
.qa summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:700;
}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{
  content:"+";flex:0 0 auto;width:26px;height:26px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:8px;background:rgba(201,255,61,.14);color:var(--primary);
  font-size:16px;font-weight:800;transition:transform .2s ease;
}
.qa[open] summary::after{content:"–";transform:rotate(180deg)}
.qa summary:hover{color:var(--primary)}
.qa-body{padding:0 20px 20px;color:var(--text-2);font-size:15.5px}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  padding:40px 44px;border-radius:26px;
  border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(100deg,rgba(201,255,61,.18) 0%,rgba(123,92,255,.22) 60%,rgba(255,61,127,.16) 100%);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,255,61,.28),transparent 68%);pointer-events:none;
}
.cta-band .cta-copy{max-width:620px;position:relative;z-index:2}
.cta-band h2{font-size:clamp(22px,3.2vw,32px);margin-bottom:10px}
.cta-band p{color:var(--text-2);font-size:15.5px}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}

/* ---------- footer ---------- */
.site-footer{
  position:relative;z-index:1;
  background:#080711;border-top:1px solid var(--line);
  padding:64px 0 26px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{color:var(--text-2);font-size:14.5px;max-width:340px}
.site-footer h4{font-size:14px;font-weight:800;margin-bottom:16px;color:var(--text)}
.site-footer ul li + li{margin-top:10px}
.site-footer ul a,.site-footer ul span{font-size:14px;color:var(--text-2)}
.site-footer ul a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .hero-grid{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:32px}
  .flow{column-count:3;column-gap:18px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:68px 0}
  .nav-main,.nav-tools{display:none}
  .nav-burger{display:flex}
  .nav-wrap{justify-content:space-between}
  .hero-grid{grid-template-columns:1fr;gap:30px;align-items:start}
  .flow{column-count:2;column-gap:18px}
  .steps{grid-template-columns:repeat(2,1fr);gap:22px}
  .points{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .path-band{padding:34px 26px 30px}
  .cta-band{padding:32px 28px}
}
@media (max-width:639px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:52px 0}
  .cat-hero .container{padding-top:30px;padding-bottom:48px}
  .nav-wrap{min-height:68px;gap:14px}
  .logo span{font-size:17px}
  .flow{column-count:1}
  .steps{grid-template-columns:1fr}
  .hero-actions .btn,.cta-band .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .hero-side{padding:20px}
  .path-band{border-radius:22px}
  .faq-grid{gap:22px}
}

/* roulang page: category4 */
:root{
  --bg:#0B0A12;
  --bg-soft:#131120;
  --surface-dark:#1B1829;
  --surface-light:#F6F3EC;
  --primary:#C9FF3D;
  --primary-ink:#122004;
  --accent:#FF3D7F;
  --accent-2:#7B5CFF;
  --text:#F3F1FF;
  --text-2:#A8A2C4;
  --text-3:#6E6885;
  --line:rgba(255,255,255,.09);
  --shadow-card:0 18px 44px rgba(0,0,0,.5);
  --glow-primary:0 10px 28px rgba(201,255,61,.26);
  --r-card:20px;
  --r-pill:999px;
  --r-img:14px;
  --ink:#141126;
  --ink-2:#4B4763;
  --font-sans:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Space Grotesk","Inter","SF Pro Display",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .16s ease,border-color .16s ease,background-color .16s ease}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(11,10,18,.88);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:26px;height:74px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:.2px;white-space:nowrap}
.logo svg{width:34px;height:34px;flex:none}
.logo em{font-style:normal;color:var(--primary)}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:nowrap}
.nav-link{position:relative;padding:9px 13px;border-radius:var(--r-pill);font-size:14.5px;color:var(--text-2);white-space:nowrap}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--text);background:rgba(201,255,61,.10)}
.nav-link.is-active::after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;background:var(--primary)}
.nav-tools{display:flex;align-items:center;gap:10px}
.mega{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--surface-dark);font-size:14px;color:var(--text);
  transition:border-color .18s ease,color .18s ease,background-color .18s ease;
}
.mega-trigger:hover,.mega-trigger:focus-visible{border-color:rgba(201,255,61,.55);color:var(--primary)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:min(920px,84vw);
  display:grid;grid-template-columns:1fr 1.25fr 1fr;gap:22px;
  padding:24px;background:var(--surface-dark);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel,.mega.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:13px;letter-spacing:.6px;color:var(--text-3);text-transform:uppercase;margin-bottom:14px}
.mega-list{display:grid;gap:4px}
.mega-list a{display:block;padding:9px 12px;border-radius:12px;font-size:14.5px;color:var(--text-2)}
.mega-list a:hover{background:rgba(201,255,61,.10);color:var(--primary)}
.mega-post{display:flex;gap:12px;align-items:center;padding:9px;border-radius:14px}
.mega-post:hover{background:rgba(255,255,255,.05)}
.mega-post img{width:56px;height:56px;border-radius:12px;object-fit:cover;flex:none}
.mega-post span{font-size:14.5px;color:var(--text);line-height:1.5;display:block}
.mega-post small{display:block;font-size:12.5px;color:var(--text-3);margin-top:3px}
.mega-entry{
  display:block;padding:18px;border-radius:16px;border:1px solid rgba(201,255,61,.55);
  background:rgba(201,255,61,.07);transition:transform .18s ease,box-shadow .18s ease;
}
.mega-entry:hover{transform:translateY(-3px);box-shadow:var(--glow-primary)}
.mega-entry strong{display:block;font-size:15.5px;color:var(--primary)}
.mega-entry span{display:block;font-size:13px;color:var(--text-2);margin-top:6px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface-dark);align-items:center;justify-content:center;flex:none;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;transition:.2s}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;transition:.2s;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  position:fixed;top:74px;right:0;width:min(330px,86vw);height:calc(100vh - 74px);
  background:var(--bg-soft);border-left:1px solid var(--line);
  padding:22px 20px 40px;display:flex;flex-direction:column;gap:6px;
  transform:translateX(103%);transition:transform .26s ease;z-index:59;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-link{padding:12px 14px;border-radius:14px;font-size:15px;color:var(--text-2)}
.drawer-link:hover{background:rgba(255,255,255,.05);color:var(--text)}
.drawer-link.is-active{background:rgba(201,255,61,.11);color:var(--primary)}
.drawer-title{font-size:12.5px;letter-spacing:.8px;color:var(--text-3);margin:16px 0 4px;padding-left:14px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);font-size:15px;font-weight:700;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--primary);color:var(--primary-ink);box-shadow:var(--glow-primary)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(201,255,61,.34)}
.btn-ghost{border:1px solid var(--line);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-dark{background:#0B0A12;color:#F3F1FF;border:1px solid rgba(0,0,0,.2)}
.btn-dark:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(0,0,0,.4)}
.btn-block{width:100%}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  padding:52px 0 46px;
  background-image:
    linear-gradient(115deg,rgba(11,10,18,.95) 0%,rgba(11,10,18,.84) 52%,rgba(19,17,32,.9) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 82%);
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span.sep{color:var(--text-3)}
.hero-pill{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,61,127,.12);border:1px solid rgba(255,61,127,.45);
  color:#FF8FB6;font-size:13px;font-weight:600;letter-spacing:.3px;
}
.page-hero h1{
  margin-top:18px;font-size:clamp(30px,4.6vw,48px);font-weight:900;
  letter-spacing:-.5px;line-height:1.22;max-width:16em;
}
.hero-lead{margin-top:18px;max-width:760px;color:var(--text-2);font-size:17px;line-height:1.85}
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.filter-tag{
  display:inline-flex;align-items:center;gap:7px;padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  font-size:13.5px;color:var(--text-2);
}
.filter-tag:hover{border-color:rgba(201,255,61,.6);color:var(--primary);transform:translateY(-1px)}
.filter-tag.is-on{background:rgba(201,255,61,.12);border-color:rgba(201,255,61,.5);color:var(--primary)}
.filter-tag i{width:6px;height:6px;border-radius:50%;background:var(--accent-2);font-style:normal;display:inline-block}

/* ---------- sections ---------- */
.section{padding:74px 0}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{font-size:clamp(24px,3.2vw,34px);font-weight:900;letter-spacing:-.3px}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  letter-spacing:1.2px;color:var(--primary);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--primary);display:inline-block}

/* ---------- check cards ---------- */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.check-card{
  background:var(--surface-dark);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;position:relative;overflow:hidden;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.check-card::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:linear-gradient(90deg,var(--primary),rgba(201,255,61,0))}
.check-card:hover{transform:translateY(-4px);border-color:rgba(201,255,61,.45);box-shadow:var(--shadow-card)}
.check-num{font-family:var(--font-num);font-size:32px;font-weight:700;color:var(--primary);letter-spacing:-.5px}
.check-card h3{font-size:18px;margin-top:14px}
.check-card p{margin-top:10px;color:var(--text-2);font-size:15px;line-height:1.8}

/* ---------- faq layout ---------- */
.faq-section{padding:76px 0 80px;background:linear-gradient(180deg,var(--bg) 0%,var(--bg-soft) 100%);border-top:1px solid var(--line)}
.faq-layout{display:grid;grid-template-columns:288px 1fr;gap:44px;align-items:start}
.faq-toc{position:sticky;top:96px}
.toc-card{
  background:var(--surface-dark);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 20px;box-shadow:var(--shadow-card);
}
.toc-card h2{font-size:15px;letter-spacing:.5px;color:var(--text);margin-bottom:6px}
.toc-card .toc-note{font-size:13px;color:var(--text-3);margin-bottom:16px;line-height:1.7}
.toc-list{display:grid;gap:2px;counter-reset:toc}
.toc-list a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;
  font-size:14.5px;color:var(--text-2);border-left:2px solid transparent;
}
.toc-list a::before{
  counter-increment:toc;content:counter(toc,decimal-leading-zero);
  font-family:var(--font-num);font-size:12px;color:var(--text-3);
}
.toc-list a:hover{background:rgba(201,255,61,.09);color:var(--primary);border-left-color:var(--primary)}
.toc-foot{margin-top:18px;padding-top:18px;border-top:1px solid var(--line)}
.toc-foot p{font-size:13.5px;color:var(--text-2);line-height:1.75;margin-bottom:14px}
.faq-group{margin-bottom:34px;scroll-margin-top:100px}
.faq-group > h3{
  display:flex;align-items:center;gap:12px;font-size:20px;margin-bottom:16px;letter-spacing:-.2px;
}
.faq-group > h3::before{content:"";width:4px;height:20px;border-radius:3px;background:var(--primary);display:inline-block}
.faq-group .group-note{color:var(--text-3);font-size:13.5px;margin:-8px 0 18px 16px}
.faq-item{
  background:var(--surface-light);color:var(--ink);
  border-radius:var(--r-card);margin-bottom:12px;
  border:1px solid rgba(0,0,0,.06);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease;
}
.faq-item:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(0,0,0,.35)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:19px 60px 19px 22px;font-size:16.5px;font-weight:700;line-height:1.6;color:#17142A;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(20,17,42,.07);color:#17142A;font-size:17px;font-weight:600;
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.faq-item[open] summary::after{content:"−";background:var(--primary);color:var(--primary-ink);transform:translateY(-50%) rotate(180deg)}
.faq-item[open] summary{padding-bottom:14px}
.faq-a{
  padding:0 22px 20px;color:var(--ink-2);font-size:15.5px;line-height:1.88;
  animation:fadeUp .24s ease;
}
.faq-a b{color:#17142A}
@keyframes fadeUp{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ---------- steps ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step-card{
  border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;
  background:linear-gradient(160deg,rgba(123,92,255,.10),rgba(27,24,41,.9));
  transition:transform .2s ease,border-color .2s ease;
}
.step-card:hover{transform:translateY(-4px);border-color:rgba(123,92,255,.6)}
.step-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;background:var(--accent-2);
  font-family:var(--font-num);font-weight:700;font-size:15px;color:#fff;
}
.step-card h3{font-size:18px;margin-top:16px}
.step-card p{margin-top:10px;color:var(--text-2);font-size:15px;line-height:1.8}

/* ---------- help ---------- */
.help-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:34px;align-items:center}
.help-list{display:grid;gap:12px;margin-top:22px}
.help-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--text-2)}
.help-list li::before{
  content:"";flex:none;width:8px;height:8px;margin-top:11px;border-radius:2px;background:var(--primary);
}
.help-card{
  background:var(--surface-dark);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-card);
}
.help-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.help-card-body{padding:24px}
.help-card-body h3{font-size:18px}
.help-card-body p{margin-top:10px;color:var(--text-2);font-size:15px}
.help-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;background:rgba(123,92,255,.16);color:#BFAFFF;border:1px solid rgba(123,92,255,.4);
}
.chip.is-accent{background:rgba(255,61,127,.14);color:#FF8FB6;border-color:rgba(255,61,127,.4)}

/* ---------- cta band ---------- */
.cta-band{
  border-radius:28px;padding:40px 40px;
  background:linear-gradient(100deg,#C9FF3D 0%,#A8EE55 42%,#7B5CFF 100%);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  color:#12100A;
}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);font-weight:900;letter-spacing:-.3px;color:#12100A}
.cta-band p{margin-top:10px;font-size:15.5px;color:rgba(18,16,10,.78);max-width:60ch}
.cta-band .btn-dark{flex:none}

/* ---------- footer ---------- */
.site-footer{background:#08070E;border-top:1px solid var(--line);padding:58px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;padding-bottom:38px}
.footer-brand p{color:var(--text-2);font-size:14.5px;margin-top:16px;max-width:36ch;line-height:1.85}
.site-footer h4{font-size:14px;color:var(--text);margin-bottom:16px;font-weight:700}
.site-footer ul{display:grid;gap:10px}
.site-footer ul a,.site-footer ul span{color:var(--text-2);font-size:14px}
.site-footer ul a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:20px 0 28px;font-size:13.5px;color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-link{padding:9px 10px;font-size:14px}
  .nav-wrap{gap:16px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-main{display:none}
  .mega{display:none}
  .nav-toggle{display:inline-flex}
  .nav-wrap{justify-content:space-between}
  .check-grid,.steps-grid{grid-template-columns:1fr 1fr}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .faq-toc{position:static}
  .toc-list{grid-template-columns:1fr 1fr;display:grid}
  .help-grid{grid-template-columns:1fr}
  .section{padding:60px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:639px){
  .container{padding:0 18px}
  body{font-size:15.5px;line-height:1.78}
  .page-hero{padding:36px 0 34px}
  .page-hero h1{font-size:30px}
  .hero-lead{font-size:15.5px}
  .section{padding:48px 0}
  .check-grid,.steps-grid{grid-template-columns:1fr}
  .toc-list{grid-template-columns:1fr}
  .faq-item summary{font-size:15.5px;padding:17px 52px 17px 18px}
  .faq-a{padding:0 18px 18px;font-size:15px}
  .cta-band{padding:28px 22px;border-radius:22px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .filter-bar{gap:8px}
  .filter-tag{font-size:13px;padding:7px 13px}
}