/* roulang page: index */
:root{
  --bg-0:#0F0C17;
  --bg-1:#171322;
  --surface:#201A2E;
  --surface-2:#292140;
  --primary:#C8F04A;
  --primary-ink:#1A2205;
  --secondary:#7C5CFF;
  --accent:#FF8A3D;
  --ink-1:#F2EFF8;
  --ink-2:#B9B2CC;
  --ink-3:#7E7793;
  --line:#2C2540;
  --line-hover:#3F3560;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:12px;
  --shadow-card:0 12px 32px rgba(8,6,14,.55);
  --shadow-glow:0 0 0 4px rgba(200,240,74,.14);
  --ease:cubic-bezier(.2,.8,.2,1);
  --nav-h:76px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink-2);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.8;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
h1,h2,h3,h4{margin:0;color:var(--ink-1);font-weight:700;letter-spacing:-.01em;line-height:1.25;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";font-family:Inter,Manrope,system-ui,sans-serif;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:104px 0;}
.section-alt{background:var(--bg-1);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap;}
.section-title{position:relative;padding-left:16px;font-size:34px;}
.section-title::before{content:"";position:absolute;left:0;top:.14em;bottom:.14em;width:4px;border-radius:2px;background:var(--primary);}
.section-desc{max-width:620px;margin-top:12px;color:var(--ink-2);font-size:16px;}
.section-kicker{display:inline-block;margin-bottom:10px;font-size:13px;letter-spacing:.08em;color:var(--primary);}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:15px;font-weight:600;}
.link-more i{transition:transform .2s var(--ease);}
.link-more:hover i{transform:translateX(4px);}
.link-more:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}

/* ---------- 顶部公告条 ---------- */
.notice-bar{background:linear-gradient(90deg,rgba(124,92,255,.20),rgba(200,240,74,.10));border-bottom:1px solid var(--line);}
.notice-inner{display:flex;align-items:center;gap:12px;min-height:44px;font-size:14px;color:var(--ink-2);}
.notice-inner strong{color:var(--primary);font-weight:600;}
.notice-close{margin-left:auto;width:28px;height:28px;border-radius:8px;color:var(--ink-3);display:flex;align-items:center;justify-content:center;transition:all .2s var(--ease);}
.notice-close:hover{color:var(--ink-1);background:var(--surface-2);}
.notice-bar.is-hidden{display:none;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(15,12,23,.86);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:all .25s var(--ease);}
.site-header.is-scrolled{background:rgba(15,12,23,.96);border-bottom-color:var(--line);box-shadow:0 10px 30px rgba(8,6,14,.45);}
.nav-wrap{display:flex;align-items:center;gap:28px;height:var(--nav-h);transition:height .25s var(--ease);}
.site-header.is-scrolled .nav-wrap{height:64px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,var(--primary),#9BD13A);display:flex;align-items:center;justify-content:center;color:var(--primary-ink);font-size:17px;box-shadow:0 6px 18px rgba(200,240,74,.22);position:relative;overflow:hidden;}
.logo-mark::after{content:"";position:absolute;inset:auto -6px -10px auto;width:22px;height:22px;background:rgba(26,34,5,.16);border-radius:50%;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-name{color:var(--ink-1);font-size:17px;font-weight:700;letter-spacing:-.01em;}
.logo-sub{font-size:11px;color:var(--ink-3);letter-spacing:.06em;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{position:relative;padding:10px 12px;font-size:15px;color:var(--ink-2);border-radius:10px;transition:all .2s var(--ease);}
.nav-link:hover{color:var(--ink-1);background:var(--surface);}
.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-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;padding:0 20px;height:44px;transition:all .2s var(--ease);white-space:nowrap;}
.btn:active{transform:translateY(1px);}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-light,#DDFF7A));color:var(--primary-ink);box-shadow:0 8px 22px rgba(200,240,74,.20);}
.btn-primary:hover{box-shadow:0 8px 22px rgba(200,240,74,.34),var(--shadow-glow);transform:translateY(-2px);}
.btn-ghost{background:transparent;border:1px solid var(--primary);color:var(--primary);}
.btn-ghost:hover{background:rgba(200,240,74,.12);transform:translateY(-2px);}
.btn-outline{border:1px solid var(--line);color:var(--ink-2);border-radius:var(--radius-btn);background:var(--surface);}
.btn-outline:hover{border-color:var(--line-hover);color:var(--ink-1);}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn-pill{border-radius:999px;}
.btn[disabled],.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;}
.hamburger{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);color:var(--ink-1);align-items:center;justify-content:center;font-size:17px;background:var(--surface);}
.drawer{position:fixed;inset:0;z-index:90;display:none;}
.drawer.is-open{display:block;}
.drawer-panel{position:absolute;top:0;right:0;width:min(320px,86vw);height:100%;background:var(--bg-1);border-left:1px solid var(--line);padding:24px 20px;overflow-y:auto;}
.drawer-mask{position:absolute;inset:0;background:rgba(8,6,14,.6);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-link{display:flex;align-items:center;gap:10px;padding:14px 12px;border-radius:12px;color:var(--ink-2);font-size:16px;border:1px solid transparent;}
.drawer-link:hover,.drawer-link.is-active{background:var(--surface);border-color:var(--line);color:var(--ink-1);}
.drawer-link.is-active{color:var(--primary);}

/* ---------- Hero ---------- */
.hero{position:relative;padding:80px 0 96px;border-bottom:1px solid var(--line);overflow:hidden;}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(900px 520px at 18% 8%,rgba(124,92,255,.34),transparent 68%),radial-gradient(700px 420px at 88% 82%,rgba(200,240,74,.12),transparent 70%);pointer-events:none;}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,transparent,rgba(200,240,74,.5),transparent);}
.hero-grid{position:relative;display:grid;grid-template-columns:55fr 45fr;gap:56px;align-items:center;}
.hero h1{font-size:50px;line-height:1.18;letter-spacing:-.02em;}
.hero h1 em{font-style:normal;color:var(--primary);}
.hero-sub{margin-top:20px;font-size:18px;color:var(--ink-2);max-width:560px;line-height:1.8;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.trust-bar{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line);}
.trust-item{display:flex;flex-direction:column;gap:4px;}
.trust-item .val{color:var(--primary);font-size:18px;font-weight:700;}
.trust-item .lbl{font-size:13px;color:var(--ink-3);}
.hero-visual{position:relative;min-height:420px;display:flex;align-items:center;justify-content:center;}
.hero-back{position:absolute;inset:-8% -6% -8% -10%;background-position:center;background-size:cover;border-radius:28px;filter:saturate(.8);opacity:.5;}
.hero-back::after{content:"";position:absolute;inset:0;border-radius:28px;background:linear-gradient(160deg,rgba(15,12,23,.72),rgba(23,19,34,.92));}
.phone-mock{position:relative;width:min(300px,74%);border-radius:34px;border:1px solid var(--line-hover);background:var(--surface);padding:14px;box-shadow:var(--shadow-card);}
.phone-mock img{border-radius:24px;aspect-ratio:9/16;object-fit:cover;width:100%;}
.phone-tag{position:absolute;right:-14px;bottom:52px;background:var(--surface-2);border:1px solid var(--line-hover);border-radius:999px;padding:8px 14px;font-size:12px;color:var(--primary);box-shadow:var(--shadow-card);}
.phone-tag-2{position:absolute;left:-18px;top:56px;background:var(--surface-2);border:1px solid var(--line-hover);border-radius:14px;padding:10px 14px;font-size:12px;color:var(--ink-2);box-shadow:var(--shadow-card);}

/* ---------- 卖点 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);transition:all .2s var(--ease);}
.card:hover{border-color:var(--line-hover);transform:translateY(-2px);box-shadow:var(--shadow-card),var(--shadow-glow);}
.feature-main{grid-column:span 6;grid-row:span 2;padding:0;overflow:hidden;display:flex;flex-direction:column;}
.feature-main .fm-media{aspect-ratio:16/10;background:var(--surface-2) center/cover no-repeat;}
.feature-main .fm-body{padding:28px;}
.feature-side{grid-column:span 6;padding:26px;display:flex;gap:20px;align-items:flex-start;}
.icon-box{flex-shrink:0;width:48px;height:48px;border-radius:14px;background:rgba(200,240,74,.12);border:1px solid rgba(200,240,74,.28);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:19px;}
.card h3{font-size:20px;margin-bottom:10px;}
.card p{font-size:15px;color:var(--ink-2);}
.card .mini-link{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-size:14px;color:var(--primary);font-weight:600;}
.card .mini-link:hover{text-decoration:underline;text-underline-offset:4px;}

/* ---------- 场景演示 ---------- */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:56px 0;border-bottom:1px dashed var(--line);}
.scene:last-child{border-bottom:none;padding-bottom:0;}
.scene:first-child{padding-top:0;}
.scene.reverse .scene-media{order:2;}
.scene-num{font-family:Inter,Manrope,sans-serif;font-size:14px;letter-spacing:.12em;color:var(--primary);margin-bottom:14px;display:block;}
.scene h3{font-size:26px;margin-bottom:16px;}
.scene p{font-size:16px;color:var(--ink-2);}
.scene-list{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.scene-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);}
.scene-list i{color:var(--primary);margin-top:6px;font-size:12px;}
.scene-media{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-card);}
.scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}

/* ---------- 数据与评价 ---------- */
.stats-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-bottom:48px;}
.stat-card{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;text-align:center;}
.stat-card .num{display:block;font-size:32px;font-weight:700;color:var(--primary);line-height:1.2;}
.stat-card .lbl{font-size:14px;color:var(--ink-3);margin-top:6px;display:block;}
.review-scroller{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.review{padding:24px;display:flex;flex-direction:column;gap:14px;}
.review-head{display:flex;align-items:center;gap:12px;}
.avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--secondary),var(--primary));display:flex;align-items:center;justify-content:center;color:var(--primary-ink);font-weight:700;font-size:15px;flex-shrink:0;}
.review-name{font-size:15px;color:var(--ink-1);font-weight:600;}
.review-device{font-size:12px;color:var(--ink-3);}
.stars{color:var(--accent);font-size:13px;letter-spacing:2px;}
.review p{font-size:15px;color:var(--ink-2);}

/* ---------- 资讯卡片 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);position:relative;transition:all .2s var(--ease);}
.post-card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);z-index:2;}
.post-card:hover::before{transform:scaleX(1);}
.post-card:hover{border-color:var(--line-hover);transform:translateY(-2px);}
.post-card:hover .post-cover{transform:scale(1.03);}
.post-cover{aspect-ratio:16/9;background-color:var(--surface-2);background-position:center;background-size:cover;transition:transform .3s var(--ease);}
.post-grid > .post-card:nth-child(6n+1) .post-cover{background-image:url('/assets/images/coverpic/cover-2.webp');}
.post-grid > .post-card:nth-child(6n+2) .post-cover{background-image:url('/assets/images/coverpic/cover-3.png');}
.post-grid > .post-card:nth-child(6n+3) .post-cover{background-image:url('/assets/images/coverpic/cover-4.png');}
.post-grid > .post-card:nth-child(6n+4) .post-cover{background-image:url('/assets/images/coverpic/cover-5.png');}
.post-grid > .post-card:nth-child(6n+5) .post-cover{background-image:url('/assets/images/coverpic/cover-6.webp');}
.post-grid > .post-card:nth-child(6n+6) .post-cover{background-image:url('/assets/images/coverpic/cover-7.webp');}
.post-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:3px 12px;font-size:11px;letter-spacing:.02em;line-height:1.7;width:fit-content;}
.badge-primary{border:1px solid rgba(200,240,74,.55);color:var(--primary);}
.badge-secondary{border:1px solid rgba(124,92,255,.55);color:#B9A9FF;}
.badge-accent{border:1px solid rgba(255,138,61,.5);color:var(--accent);}
.post-title{font-size:18px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-sum{font-size:14px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);padding-top:12px;border-top:1px solid var(--line);}
.post-more{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:4px;}
.post-card:hover .post-more i{transform:translateX(3px);}
.post-more i{transition:transform .2s var(--ease);}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:72px 24px;background:var(--bg-1);border:1px dashed var(--line);border-radius:var(--radius-card);}
.empty-state i{font-size:30px;color:var(--ink-3);}
.empty-state p{font-size:15px;color:var(--ink-3);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:840px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:border-color .2s var(--ease);}
.faq-item.is-open{border-color:rgba(200,240,74,.45);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:20px 22px;font-size:16px;font-weight:600;color:var(--ink-1);}
.faq-q i{color:var(--primary);transition:transform .25s var(--ease);font-size:14px;flex-shrink:0;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;opacity:0;overflow:hidden;transition:max-height .3s var(--ease),opacity .3s var(--ease);}
.faq-item.is-open .faq-a{max-height:320px;opacity:1;}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ---------- CTA ---------- */
.cta-block{border:1px solid rgba(200,240,74,.4);border-radius:24px;background:linear-gradient(140deg,rgba(124,92,255,.18),rgba(32,26,46,.9));padding:56px 48px;text-align:center;position:relative;overflow:hidden;}
.cta-block h2{font-size:32px;}
.cta-block p{margin-top:14px;font-size:16px;color:var(--ink-2);max-width:640px;margin-left:auto;margin-right:auto;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px;}

/* ---------- 表单 ---------- */
.field-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px;}
.field{flex:1;min-width:200px;height:46px;border-radius:10px;background:var(--surface-2);border:1px solid var(--line);color:var(--ink-1);padding:0 14px;font-size:14px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.field::placeholder{color:var(--ink-3);}
.field:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(200,240,74,.16);}
.field.is-error{border-color:var(--accent);}
.field-hint{font-size:12px;color:var(--accent);margin-top:8px;display:none;}
.field-hint.is-visible{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:72px 0 24px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-title{font-size:14px;color:var(--primary);font-weight:700;margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:13px;color:var(--ink-2);}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.footer-links a{display:inline-block;transition:all .2s var(--ease);}
.footer-text{font-size:13px;color:var(--ink-3);line-height:1.9;}
.footer-bottom{margin-top:48px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:12px;color:var(--ink-3);}
.footer-bottom a{color:var(--ink-3);}
.footer-bottom a:hover{color:var(--primary);}

/* ---------- 移动端底部 ---------- */
.mobile-convert{display:none;position:fixed;left:0;right:0;bottom:calc(56px + env(safe-area-inset-bottom));z-index:80;height:56px;background:rgba(23,19,34,.96);border-top:1px solid var(--line);backdrop-filter:blur(12px);padding:0 14px;align-items:center;gap:12px;opacity:0;transform:translateY(10px);pointer-events:none;transition:all .3s var(--ease);}
.mobile-convert.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.mobile-convert .btn{height:40px;font-size:14px;flex:0 0 60%;}
.mobile-convert .text-link{font-size:14px;color:var(--primary);font-weight:600;}
.mobile-tabbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:85;height:calc(56px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:rgba(23,19,34,.98);border-top:1px solid var(--line);backdrop-filter:blur(12px);}
.tabbar-inner{display:grid;grid-template-columns:repeat(5,1fr);height:56px;}
.tab-item{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:10px;color:var(--ink-3);}
.tab-item i{font-size:19px;}
.tab-item.is-active{color:var(--primary);}
.tab-item.is-active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:26px;height:2px;border-radius:2px;background:var(--primary);}
.tab-item:active{background:rgba(200,240,74,.06);}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .card:hover,.post-card:hover,.btn:hover{transform:none;}
}
@media (max-width:1023px){
  .nav-menu{display:none;}
  .nav-actions .btn-ghost{display:none;}
  .hamburger{display:flex;}
  .hero h1{font-size:38px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-visual{min-height:340px;}
  .feature-main,.feature-side{grid-column:span 12;grid-row:auto;}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .review-scroller{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:80px 0;}
  .section-title{font-size:28px;}
}
@media (max-width:767px){
  body{font-size:16px;padding-bottom:132px;}
  .container{padding:0 16px;}
  .section{padding:60px 0;}
  .nav-wrap{height:64px;}
  .logo-sub{display:none;}
  .nav-actions .btn-primary{height:40px;padding:0 16px;font-size:14px;}
  .hero{padding:48px 0 64px;}
  .hero h1{font-size:31px;}
  .hero-sub{font-size:16px;}
  .trust-bar{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
  .phone-mock{width:min(250px,80%);}
  .phone-tag,.phone-tag-2{display:none;}
  .section-title{font-size:23px;}
  .section-title::before{width:3px;}
  .scene{grid-template-columns:1fr;gap:24px;padding:36px 0;}
  .scene.reverse .scene-media{order:0;}
  .scene h3{font-size:20px;}
  .stats-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-bottom:32px;}
  .stat-card{padding:18px;}
  .stat-card .num{font-size:24px;}
  .review-scroller{display:flex;gap:14px;overflow-x:auto;padding-bottom:12px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;}
  .review{min-width:266px;scroll-snap-align:start;}
  .post-grid{grid-template-columns:1fr;gap:18px;}
  .cta-block{padding:36px 22px;border-radius:20px;}
  .cta-block h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .mobile-tabbar,.mobile-convert{display:flex;}
  .mobile-tabbar{display:block;}
}
@media (max-width:520px){
  .hero h1{font-size:28px;}
  .hero-cta .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
}

/* roulang page: article */
:root{
  --bg-0:#0F0C17; --bg-1:#171322; --surface:#201A2E; --surface-2:#292140;
  --primary:#C8F04A; --primary-bright:#DDFF6E; --primary-ink:#1A2205;
  --secondary:#7C5CFF; --secondary-deep:#5B3EE0; --accent:#FF8A3D;
  --ink-1:#F2EFF8; --ink-2:#B9B2CC; --ink-3:#7E7793;
  --line:#2C2540; --line-hover:#3F3560;
  --r-card:16px; --r-lg:20px; --r-btn:12px; --r-pill:999px;
  --shadow:0 12px 32px rgba(8,6,14,.55);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;background:var(--bg-0);color:var(--ink-2);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",Inter,sans-serif;
  font-size:17px;line-height:1.8;letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{color:var(--ink-1);font-weight:700;letter-spacing:-.01em;line-height:1.25;margin:0;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.section{padding:104px 0;}
.section-alt{background:var(--bg-1);}
.section-head{margin-bottom:36px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;color:var(--primary);text-transform:uppercase;margin-bottom:12px;}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--primary);display:block;}
.section-title{font-size:34px;position:relative;padding-left:16px;}
.section-title::before{content:"";position:absolute;left:0;top:.14em;bottom:.14em;width:4px;border-radius:2px;background:var(--primary);}
.section-desc{margin-top:12px;color:var(--ink-3);font-size:15px;max-width:720px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:900;background:rgba(15,12,23,.86);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line);
  transition:background-color .25s var(--ease),border-color .25s var(--ease);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:80px;transition:height .25s var(--ease);}
.site-header.is-scrolled{background:rgba(15,12,23,.96);}
.site-header.is-scrolled .nav-wrap{height:64px;}
.logo{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.logo-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-bright));color:var(--primary-ink);
  font-size:18px;box-shadow:0 0 0 1px rgba(200,240,74,.28);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-name{color:var(--ink-1);font-weight:700;font-size:16px;letter-spacing:-.01em;}
.logo-sub{color:var(--ink-3);font-size:11px;letter-spacing:.04em;}
.nav-menu{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center;}
.nav-link{
  position:relative;padding:10px 12px;border-radius:10px;color:var(--ink-2);font-size:15px;white-space:nowrap;
}
.nav-link:hover{color:var(--ink-1);background:rgba(124,92,255,.12);}
.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-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.hamburger{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink-1);cursor:pointer;
}
.hamburger:hover{border-color:var(--line-hover);color:var(--primary);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;background:transparent;color:var(--ink-1);
  transition:transform .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-bright));color:var(--primary-ink);}
.btn-primary:hover{box-shadow:0 0 0 4px rgba(200,240,74,.14),0 10px 24px rgba(200,240,74,.18);transform:translateY(-2px);}
.btn-ghost{border-color:rgba(200,240,74,.45);color:var(--primary);}
.btn-ghost:hover{background:rgba(200,240,74,.12);border-color:var(--primary);}
.btn-outline{border-color:var(--line);color:var(--ink-2);}
.btn-outline:hover{border-color:var(--line-hover);color:var(--ink-1);background:rgba(124,92,255,.12);}
.btn-pill{border-radius:var(--r-pill);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{color:var(--primary);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;text-decoration:underline;text-underline-offset:4px;}
.link-arrow i{transition:transform .2s var(--ease);}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- badge / tag ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-pill);
  font-size:11px;letter-spacing:.02em;border:1px solid rgba(200,240,74,.5);color:var(--primary);background:rgba(200,240,74,.08);
}
.badge-purple{border-color:rgba(124,92,255,.5);color:#B9A9FF;background:rgba(124,92,255,.12);}
.badge-orange{border-color:rgba(255,138,61,.45);color:var(--accent);background:rgba(255,138,61,.1);}

/* ---------- breadcrumb ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:var(--bg-1);}
.crumb{display:flex;align-items:center;gap:10px;padding:16px 0;font-size:14px;color:var(--ink-3);flex-wrap:wrap;}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--line-hover);}
.crumb .current{color:var(--ink-3);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- article layout ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start;}
.article-head{padding-top:40px;}
.article-title{font-size:40px;margin-bottom:18px;}
.article-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:14px;color:var(--ink-3);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line-hover);}
.head-rule{height:1px;background:var(--line);margin:26px 0 34px;}
.article-body{max-width:800px;font-size:17px;line-height:1.9;color:var(--ink-2);}
.article-body p{margin:0 0 1.2em;}
.article-body h2{font-size:26px;margin:48px 0 18px;padding-left:14px;position:relative;}
.article-body h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:var(--primary);}
.article-body h3{font-size:20px;margin:34px 0 12px;}
.article-body h4{font-size:18px;margin:24px 0 10px;}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
.article-body a:hover{color:var(--secondary);}
.article-body ul{margin:0 0 1.2em;padding-left:4px;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:8px;}
.article-body ul li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--primary);}
.article-body ol{margin:0 0 1.2em;padding-left:22px;}
.article-body ol li{margin-bottom:8px;}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:var(--bg-1);border-left:3px solid var(--secondary);
  border-radius:0 var(--r-btn) var(--r-btn) 0;color:var(--ink-2);font-size:16px;
}
.article-body img{border-radius:12px;margin:24px 0;width:100%;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--ink-3);margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:24px 0;border:1px solid var(--line);}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--surface);color:var(--ink-1);}
.article-body tr:nth-child(even) td{background:rgba(32,26,46,.5);}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.article-body strong{color:var(--ink-1);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:40px 0 0;}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);font-size:12px;
  border:1px solid var(--line);color:var(--ink-2);background:var(--surface);
}
.tag:hover{border-color:var(--line-hover);color:var(--primary);}
.empty-box{
  border:1px solid var(--line);background:var(--surface);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;
}
.empty-box i{font-size:34px;color:var(--ink-3);}
.empty-box h2{font-size:22px;margin:18px 0 8px;}
.empty-box p{color:var(--ink-3);font-size:15px;margin-bottom:22px;}

/* ---------- post nav ---------- */
.postnav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:40px;}
.postnav-card{
  display:block;padding:20px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.postnav-card:hover{border-color:var(--line-hover);transform:translateY(-2px);box-shadow:var(--shadow);}
.postnav-card .label{font-size:12px;color:var(--ink-3);letter-spacing:.06em;margin-bottom:8px;display:block;}
.postnav-card strong{display:block;color:var(--ink-1);font-size:16px;font-weight:600;line-height:1.5;}
.postnav-card:hover strong{color:var(--primary);}

/* ---------- sidebar ---------- */
.sidebar{display:flex;flex-direction:column;gap:18px;position:sticky;top:96px;}
.side-card{border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);padding:22px;}
.side-card h3{font-size:15px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--primary);font-size:14px;}
.side-list li + li{border-top:1px solid var(--line);}
.side-list a{display:block;padding:12px 0;font-size:14px;color:var(--ink-2);}
.side-list a:hover{color:var(--primary);padding-left:4px;}
.side-list .meta{display:block;font-size:12px;color:var(--ink-3);margin-top:4px;}
.side-cta{background:linear-gradient(160deg,rgba(124,92,255,.22),rgba(32,26,46,.9));border-color:rgba(124,92,255,.45);}
.side-cta p{font-size:14px;color:var(--ink-2);margin-bottom:16px;}

/* ---------- related cards ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.related-grid .post-card{max-width:none;}
.post-card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.post-card:hover{border-color:var(--line-hover);transform:translateY(-3px);box-shadow:var(--shadow);}
.post-card .cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.post-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.post-card:hover .cover img{transform:scale(1.03);}
.post-card .cover .cat{position:absolute;left:12px;top:12px;}
.post-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card h3{font-size:18px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card .excerpt{font-size:14px;color:var(--ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);border-top:1px solid var(--line);padding-top:14px;}
.post-card .foot .more{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;}

/* ---------- faq ---------- */
.faq-wrap{max-width:840px;margin:0 auto;}
.faq-item{border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);margin-bottom:12px;overflow:hidden;}
.faq-item.is-open{border-color:var(--line-hover);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink-1);
}
.faq-q i{color:var(--primary);transition:transform .25s var(--ease);flex:0 0 auto;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;opacity:0;overflow:hidden;transition:max-height .3s var(--ease),opacity .25s var(--ease);}
.faq-item.is-open .faq-a{opacity:1;}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ---------- cta ---------- */
.cta-block{
  position:relative;border:1px solid rgba(200,240,74,.35);border-radius:var(--r-lg);overflow:hidden;
  padding:56px 40px;text-align:center;background:var(--bg-1);
}
.cta-block::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.18;
}
.cta-inner{position:relative;z-index:1;}
.cta-block h2{font-size:32px;margin-bottom:14px;}
.cta-block p{color:var(--ink-2);max-width:620px;margin:0 auto 26px;font-size:16px;}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 28px;margin-top:104px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.footer-title{font-size:14px;color:var(--ink-1);margin-bottom:16px;position:relative;padding-left:12px;}
.footer-title::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:2px;background:var(--primary);}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:13px;color:var(--ink-2);}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.footer-text{font-size:13px;color:var(--ink-3);line-height:1.8;margin-bottom:18px;}
.field-row{display:flex;gap:10px;flex-wrap:wrap;width:100%;}
.field{
  flex:1 1 180px;min-width:0;padding:11px 14px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface-2);color:var(--ink-1);font-size:14px;
}
.field::placeholder{color:var(--ink-3);}
.field:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px rgba(200,240,74,.14);}
.field-hint{font-size:12px;color:var(--ink-3);margin-top:10px;}
.field-hint.is-error{color:var(--accent);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--ink-3);
}
.footer-bottom a{color:var(--ink-2);}
.footer-bottom a:hover{color:var(--primary);}

/* ---------- mobile ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(8,6,14,.72);opacity:0;visibility:hidden;
  transition:opacity .25s var(--ease),visibility .25s var(--ease);z-index:950;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:var(--bg-1);
  border-left:1px solid var(--line);z-index:960;transform:translateX(100%);
  transition:transform .28s var(--ease);padding:24px 20px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-links{display:flex;flex-direction:column;gap:6px;}
.drawer-links a{padding:13px 14px;border-radius:12px;font-size:15px;color:var(--ink-2);border:1px solid transparent;}
.drawer-links a:hover,.drawer-links a.is-active{background:var(--surface);color:var(--primary);border-color:var(--line);}
.drawer .btn{margin-top:18px;width:100%;}
.mobile-tab{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:980;height:56px;
  background:rgba(23,19,34,.97);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tab ul{display:grid;grid-template-columns:repeat(5,1fr);height:56px;}
.mobile-tab a{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10px;color:var(--ink-3);
}
.mobile-tab i{font-size:18px;}
.mobile-tab a.is-active{color:var(--primary);}
.mobile-tab a.is-active::before{content:"";position:absolute;top:0;left:20%;right:20%;height:2px;border-radius:2px;background:var(--primary);}
.mobile-cta-bar{
  display:none;position:fixed;left:0;right:0;bottom:calc(56px + env(safe-area-inset-bottom));z-index:979;
  height:56px;align-items:center;gap:12px;padding:0 16px;
  background:rgba(32,26,46,.96);border-top:1px solid var(--line);
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.mobile-cta-bar.show{opacity:1;visibility:visible;}
.mobile-cta-bar .btn{flex:0 0 60%;}
.mobile-cta-bar .plain{font-size:13px;color:var(--ink-2);text-decoration:underline;text-underline-offset:4px;}

@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .sidebar{position:static;margin-top:36px;}
  .section{padding:80px 0;}
}
@media (max-width:1023px){
  .nav-menu{display:none;}
  .hamburger{display:inline-grid;place-items:center;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section-title{font-size:28px;}
  .article-title{font-size:34px;}
  .nav-actions .btn-ghost{display:none;}
}
@media (max-width:767px){
  body{padding-bottom:132px;font-size:16px;}
  .container{padding:0 16px;}
  .section{padding:60px 0;}
  .article-head{padding-top:26px;}
  .article-title{font-size:30px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:24px;margin-top:38px;}
  .article-body h3{font-size:19px;}
  .postnav{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .cta-block{padding:40px 22px;}
  .cta-block h2{font-size:24px;}
  .mobile-tab{display:block;}
  .mobile-cta-bar{display:flex;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;}
  .section-desc{font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .btn:hover,.post-card:hover,.postnav-card:hover{transform:none;}
}

/* roulang page: category1 */
:root{
    --bg-0:#0F0C17;
    --bg-1:#171322;
    --surface:#201A2E;
    --surface-2:#292140;
    --primary:#C8F04A;
    --primary-soft:rgba(200,240,74,.14);
    --primary-ink:#1A2205;
    --secondary:#7C5CFF;
    --accent:#FF8A3D;
    --ink-1:#F2EFF8;
    --ink-2:#B9B2CC;
    --ink-3:#7E7793;
    --line:#2C2540;
    --line-hover:#3F3560;
    --radius-card:16px;
    --radius-lg:20px;
    --radius-btn:12px;
    --radius-input:10px;
    --shadow-card:0 12px 32px rgba(8,6,14,.55);
    --ease:cubic-bezier(.2,.8,.2,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg-0);
    color:var(--ink-2);
    font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",Inter,-apple-system,BlinkMacSystemFont,sans-serif;
    font-size:16.5px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border-style:none;}
  a{color:inherit;text-decoration:none;transition:color 200ms var(--ease),transform 200ms var(--ease);}
  button{background:none;border:0;cursor:pointer;color:inherit;font:inherit;padding:0;}
  input{font:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,h5{margin:0;color:var(--ink-1);font-weight:600;letter-spacing:-.01em;line-height:1.25;}
  p{margin:0;}
  .num{font-variant-numeric:tabular-nums;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(15,12,23,.86);
    backdrop-filter:blur(12px);
    border-bottom:1px solid transparent;
    transition:background 200ms var(--ease),border-color 200ms var(--ease);
  }
  .site-header.is-scrolled{background:rgba(15,12,23,.97);border-bottom-color:var(--line);}
  .nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:80px;transition:height 200ms var(--ease);}
  .site-header.is-scrolled .nav-wrap{height:64px;}

  .logo{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
  .logo-mark{
    width:40px;height:40px;border-radius:12px;flex-shrink:0;
    background:linear-gradient(135deg,#C8F04A,#E4FF7A);
    color:var(--primary-ink);
    display:flex;align-items:center;justify-content:center;
    font-size:17px;transform:skewX(-6deg);
    box-shadow:0 0 0 1px rgba(200,240,74,.35);
  }
  .logo-mark i{transform:skewX(6deg);}
  .logo-text{display:flex;flex-direction:column;line-height:1.15;}
  .logo-name{color:var(--ink-1);font-size:16px;font-weight:700;letter-spacing:-.01em;}
  .logo-sub{color:var(--ink-3);font-size:11px;letter-spacing:.02em;}

  .nav-menu{display:flex;align-items:center;gap:2px;}
  .nav-link{
    position:relative;padding:9px 11px;border-radius:8px;
    font-size:14.5px;color:var(--ink-2);white-space:nowrap;
  }
  .nav-link:hover{color:var(--primary);}
  .nav-link:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
  .nav-link.is-active{color:var(--primary);}
  .nav-link.is-active::after{
    content:"";position:absolute;left:11px;right:11px;bottom:2px;height:2px;
    background:var(--primary);border-radius:2px;
  }
  .nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;padding:11px 20px;line-height:1.2;
    transition:transform 200ms var(--ease),background 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease),box-shadow 200ms var(--ease);
  }
  .btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
  .btn-primary{
    background:linear-gradient(135deg,#C8F04A,#E2FF86);
    color:var(--primary-ink);
  }
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 4px var(--primary-soft),0 10px 24px rgba(200,240,74,.18);}
  .btn-primary:active{transform:translateY(1px);box-shadow:none;}
  .btn-ghost{border:1px solid var(--primary);color:var(--primary);background:transparent;}
  .btn-ghost:hover{background:rgba(200,240,74,.12);transform:translateY(-2px);}
  .btn-ghost:active{transform:translateY(1px);}
  .btn-pill{border-radius:999px;}
  .btn-sm{padding:8px 14px;font-size:13.5px;}
  .btn-block{width:100%;}
  .btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

  .hamburger{
    display:none;width:40px;height:40px;border-radius:10px;
    border:1px solid var(--line);color:var(--ink-1);
    align-items:center;justify-content:center;font-size:16px;
    transition:border-color 200ms var(--ease),color 200ms var(--ease);
  }
  .hamburger:hover{border-color:var(--line-hover);color:var(--primary);}

  /* ---------- Drawer ---------- */
  .drawer{
    position:fixed;inset:0;z-index:90;background:rgba(9,7,15,.62);
    opacity:0;pointer-events:none;transition:opacity 200ms var(--ease);
  }
  .drawer.is-open{opacity:1;pointer-events:auto;}
  .drawer-panel{
    position:absolute;top:0;right:0;width:84%;max-width:340px;height:100%;
    background:var(--bg-1);border-left:1px solid var(--line);
    padding:22px 22px 32px;overflow-y:auto;
    transform:translateX(100%);transition:transform 260ms var(--ease);
  }
  .drawer.is-open .drawer-panel{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
  .drawer-close{
    width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
    display:flex;align-items:center;justify-content:center;color:var(--ink-2);
  }
  .drawer-close:hover{border-color:var(--line-hover);color:var(--primary);}
  .drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:22px;}
  .drawer-nav a{
    padding:12px 12px;border-radius:10px;font-size:15px;color:var(--ink-2);
    display:flex;align-items:center;justify-content:space-between;
  }
  .drawer-nav a:hover{background:var(--surface);color:var(--primary);}
  .drawer-nav a.is-active{background:var(--surface);color:var(--primary);font-weight:600;}

  /* ---------- Sections ---------- */
  .section{padding:104px 0;}
  .section-alt{background:var(--bg-1);}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px;flex-wrap:wrap;}
  .section-index{
    display:block;font-size:12px;letter-spacing:.16em;color:var(--primary);
    margin-bottom:10px;
  }
  .section-title{font-size:clamp(24px,2.9vw,34px);}
  .section-sub{margin-top:12px;font-size:15px;color:var(--ink-3);max-width:720px;}
  .title-bar{position:relative;padding-left:16px;}
  .title-bar::before{
    content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
    background:var(--primary);
  }
  .link-more{font-size:14px;color:var(--ink-2);display:inline-flex;align-items:center;gap:8px;border-bottom:1px solid transparent;padding-bottom:2px;}
  .link-more i{transition:transform 200ms var(--ease);}
  .link-more:hover{color:var(--primary);border-bottom-color:var(--primary);}
  .link-more:hover i{transform:translateX(3px);}

  /* ---------- Category hero ---------- */
  .cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
  .cat-hero-bg{
    position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
    opacity:.22;
  }
  .cat-hero::after{
    content:"";position:absolute;inset:0;
    background:radial-gradient(120% 90% at 18% 0%, rgba(124,92,255,.28) 0%, rgba(15,12,23,.94) 62%);
  }
  .cat-hero-inner{position:relative;z-index:2;padding:52px 24px 68px;}
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:22px;flex-wrap:wrap;}
  .breadcrumb a{color:var(--ink-2);}
  .breadcrumb a:hover{color:var(--primary);}
  .breadcrumb-cur{color:var(--ink-3);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:5px 14px;border-radius:999px;
    border:1px solid rgba(200,240,74,.4);color:var(--primary);
    font-size:12px;letter-spacing:.04em;margin-bottom:20px;
  }
  .hero-title{font-size:clamp(30px,4.2vw,48px);max-width:900px;margin-bottom:20px;}
  .hero-desc{font-size:16.5px;color:var(--ink-2);max-width:760px;line-height:1.9;}
  .hero-stats{
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
    margin-top:40px;padding-top:28px;border-top:1px solid rgba(44,37,64,.9);
  }
  .stat-num{display:block;font-size:24px;font-weight:700;color:var(--primary);line-height:1.2;}
  .stat-label{display:block;font-size:12.5px;color:var(--ink-3);margin-top:4px;}

  /* ---------- Feature cards ---------- */
  .feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
  .feature-card{
    position:relative;border-radius:var(--radius-lg);overflow:hidden;
    border:1px solid var(--line);min-height:290px;
    display:flex;align-items:flex-end;background:var(--surface);
    transition:transform 200ms var(--ease),border-color 200ms var(--ease),box-shadow 200ms var(--ease);
  }
  .feature-card:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:var(--shadow-card),0 0 0 4px var(--primary-soft);}
  .feature-card-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5;}
  .feature-card::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(15,12,23,.1) 0%,rgba(15,12,23,.94) 78%);
  }
  .feature-card-body{position:relative;z-index:2;padding:26px;}
  .feature-card-name{font-size:22px;margin-bottom:8px;}
  .feature-card-desc{font-size:14.5px;color:var(--ink-2);margin-bottom:16px;max-width:520px;}
  .feature-card-meta{display:flex;flex-wrap:wrap;gap:16px;font-size:12.5px;color:var(--ink-3);margin-bottom:18px;}

  /* ---------- Badges ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:5px;
    padding:3px 10px;border-radius:999px;font-size:11px;
    letter-spacing:.02em;border:1px solid currentColor;line-height:1.6;
  }
  .badge-primary{color:var(--primary);}
  .badge-secondary{color:var(--secondary);}
  .badge-accent{color:var(--accent);}
  .badge-solid{background:rgba(200,240,74,.14);border-color:transparent;color:var(--primary);}
  .badge-group{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px;}

  /* ---------- App grid ---------- */
  .app-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .app-card{
    position:relative;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--radius-card);overflow:hidden;
    display:flex;flex-direction:column;
    transition:transform 200ms var(--ease),border-color 200ms var(--ease),box-shadow 200ms var(--ease);
  }
  .app-card:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:var(--shadow-card),0 0 0 4px var(--primary-soft);}
  .app-card:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
  .app-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
  .app-cover img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
  .app-card:hover .app-cover img{transform:scale(1.03);}
  .app-cover::before{
    content:"";position:absolute;top:0;left:0;right:0;height:2px;z-index:3;
    background:var(--primary);transform:scaleX(0);transform-origin:left;
    transition:transform 260ms var(--ease);
  }
  .app-card:hover .app-cover::before{transform:scaleX(1);}
  .app-cover-fallback{
    position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
    color:var(--ink-3);font-size:26px;
  }
  .app-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
  .app-name{font-size:18px;margin-bottom:8px;}
  .app-desc{font-size:14px;color:var(--ink-2);line-height:1.75;margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .app-meta{
    display:flex;flex-wrap:wrap;gap:14px;font-size:12.5px;color:var(--ink-3);
    padding-top:14px;border-top:1px solid var(--line);margin-top:auto;
  }
  .app-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;}
  .app-score{font-size:13px;color:var(--accent);font-weight:600;}

  /* ---------- Data strip ---------- */
  .data-strip{
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
    background:var(--line);border:1px solid var(--line);border-radius:var(--radius-card);
    overflow:hidden;margin-bottom:40px;
  }
  .data-cell{background:var(--surface);padding:22px 20px;}
  .data-cell .num{display:block;font-size:22px;font-weight:700;color:var(--primary);line-height:1.2;}
  .data-cell .lbl{display:block;font-size:12.5px;color:var(--ink-3);margin-top:6px;}

  /* ---------- Pagination ---------- */
  .pagination{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:48px;flex-wrap:wrap;}
  .page-btn{
    min-width:42px;height:42px;padding:0 16px;border-radius:10px;
    border:1px solid var(--line);color:var(--ink-2);font-size:14px;
    display:inline-flex;align-items:center;justify-content:center;
    transition:all 200ms var(--ease);
  }
  .page-btn:hover{border-color:var(--primary);color:var(--primary);}
  .page-btn.is-current{background:var(--primary);border-color:var(--primary);color:var(--primary-ink);font-weight:700;}
  .page-btn.is-disabled{opacity:.38;pointer-events:none;}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:840px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
  .faq-item{
    background:var(--surface);border:1px solid var(--line);border-radius:14px;
    overflow:hidden;transition:border-color 200ms var(--ease);
  }
  .faq-item:hover{border-color:var(--line-hover);}
  .faq-q{
    width:100%;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink-1);
  }
  .faq-q:focus-visible{outline:2px solid var(--primary);outline-offset:-2px;}
  .faq-q i{color:var(--primary);font-size:13px;transition:transform 240ms var(--ease);flex-shrink:0;}
  .faq-item.is-open .faq-q i{transform:rotate(180deg);}
  .faq-a{
    max-height:0;opacity:0;overflow:hidden;
    transition:max-height 300ms var(--ease),opacity 240ms var(--ease),padding 240ms var(--ease);
    padding:0 22px;
  }
  .faq-item.is-open .faq-a{max-height:400px;opacity:1;padding:0 22px 20px;}
  .faq-a p{font-size:15px;color:var(--ink-2);line-height:1.85;}

  /* ---------- CTA ---------- */
  .cta-box{
    border:1px solid rgba(200,240,74,.45);border-radius:24px;
    background:linear-gradient(160deg,rgba(124,92,255,.16),rgba(15,12,23,.6) 58%);
    padding:56px 40px;text-align:center;
  }
  .cta-title{font-size:clamp(24px,3vw,34px);margin-bottom:14px;}
  .cta-text{font-size:15px;color:var(--ink-2);max-width:620px;margin:0 auto 28px;}
  .cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;}

  /* ---------- Footer ---------- */
  .site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 28px;}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
  .footer-title{font-size:14px;color:var(--ink-1);margin-bottom:16px;padding-left:11px;position:relative;}
  .footer-title::before{
    content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;border-radius:2px;background:var(--primary);
  }
  .footer-text{font-size:13.5px;color:var(--ink-3);line-height:1.85;margin-bottom:18px;}
  .footer-links{display:flex;flex-direction:column;gap:2px;}
  .footer-links a{font-size:13.5px;color:var(--ink-2);padding:6px 0;display:inline-block;}
  .footer-links a:hover{color:var(--primary);transform:translateX(2px);}
  .field-row{margin-bottom:8px;}
  .field{
    flex:1 1 190px;min-width:0;background:var(--surface-2);
    border:1px solid var(--line);border-radius:var(--radius-input);
    color:var(--ink-1);padding:11px 14px;font-size:14px;
    transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
  }
  .field::placeholder{color:var(--ink-3);}
  .field:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft);}
  .field.is-error{border-color:var(--accent);}
  .field-hint{font-size:12px;color:var(--ink-3);}
  .field-hint.is-error{color:var(--accent);}
  .footer-bottom{
    margin-top:42px;padding-top:20px;border-top:1px solid var(--line);
    display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
    font-size:12.5px;color:var(--ink-3);
  }
  .footer-bottom a{color:var(--ink-2);}
  .footer-bottom a:hover{color:var(--primary);}

  /* ---------- Mobile tab bar & CTA bar ---------- */
  .mobile-tabbar{
    display:none;position:fixed;left:0;right:0;bottom:0;z-index:95;
    height:calc(56px + env(safe-area-inset-bottom));
    padding-bottom:env(safe-area-inset-bottom);
    background:rgba(23,19,34,.98);border-top:1px solid var(--line);
    backdrop-filter:blur(10px);
  }
  .mobile-tabbar ul{display:flex;height:56px;}
  .mobile-tabbar li{flex:1;min-width:0;}
  .mobile-tabbar a{
    position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
    gap:3px;height:100%;font-size:10px;color:var(--ink-3);
  }
  .mobile-tabbar a i{font-size:17px;}
  .mobile-tabbar a.is-active{color:var(--primary);}
  .mobile-tabbar a.is-active::before{
    content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
    width:26px;height:2px;border-radius:2px;background:var(--primary);
  }
  .mobile-cta{
    display:none;position:fixed;left:0;right:0;z-index:94;
    bottom:calc(56px + env(safe-area-inset-bottom));
    height:56px;align-items:center;gap:12px;padding:0 16px;
    background:rgba(32,26,46,.98);border-top:1px solid var(--line);
    opacity:0;pointer-events:none;transform:translateY(10px);
    transition:opacity 240ms var(--ease),transform 240ms var(--ease);
  }
  .mobile-cta.is-show{opacity:1;pointer-events:auto;transform:translateY(0);}
  .mobile-cta .btn{flex:0 0 60%;}
  .mobile-cta .cta-link{font-size:13.5px;color:var(--ink-2);white-space:nowrap;}
  .mobile-cta .cta-link:hover{color:var(--primary);}

  /* ---------- Responsive ---------- */
  @media (max-width:1023px){
    .nav-menu{display:none;}
    .nav-actions .btn{display:none;}
    .hamburger{display:flex;}
    .app-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
    .section{padding:80px 0;}
    .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
    .data-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  }

  @media (max-width:767px){
    body{padding-bottom:132px;font-size:16px;}
    .container{padding:0 16px;}
    .cat-hero-inner{padding:36px 16px 52px;}
    .section{padding:60px 0;}
    .feature-grid{grid-template-columns:minmax(0,1fr);}
    .feature-card{min-height:250px;}
    .app-grid{grid-template-columns:minmax(0,1fr);}
    .app-body{padding:18px;}
    .cta-box{padding:38px 20px;}
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}
    .footer-bottom{flex-direction:column;gap:8px;}
    .mobile-tabbar{display:block;}
    .mobile-cta{display:flex;}
    .faq-q{font-size:15.5px;padding:16px 18px;}
    .faq-a{padding:0 18px;}
    .faq-item.is-open .faq-a{padding:0 18px 18px;}
    .page-btn{min-width:40px;height:40px;padding:0 12px;font-size:13.5px;}
  }

  @media (max-width:520px){
    .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));}
    .data-strip{grid-template-columns:minmax(0,1fr);}
    .app-meta{gap:10px;font-size:12px;}
    .mobile-cta .btn{flex:0 0 62%;padding:10px 14px;font-size:14px;}
  }

  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{transition:none !important;animation:none !important;}
    .app-card:hover,.feature-card:hover,.btn:hover{transform:none;}
  }

/* roulang page: category2 */
:root{
  --bg-0:#0F0C17;
  --bg-1:#171322;
  --surface:#201A2E;
  --surface-2:#292140;
  --primary:#C8F04A;
  --primary-bright:#E4FF7A;
  --primary-ink:#1A2205;
  --secondary:#7C5CFF;
  --accent:#FF8A3D;
  --ink-1:#F2EFF8;
  --ink-2:#B9B2CC;
  --ink-3:#7E7793;
  --line:#2C2540;
  --line-hover:#3F3560;
  --radius-sm:10px;
  --radius-btn:12px;
  --radius-card:16px;
  --radius-lg:20px;
  --shadow-card:0 12px 32px rgba(8,6,14,.55);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
.site-body{
  margin:0;
  padding:0 0 0 0;
  background:var(--bg-0);
  color:var(--ink-2);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.site-body img{max-width:100%;display:block;}
.site-body a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);}
.site-body button,.site-body input{font:inherit;}
.site-body ul{margin:0;padding:0;list-style:none;}
.site-body h1,.site-body h2,.site-body h3,.site-body h4,.site-body p,.site-body dl,.site-body dd,.site-body dt,.site-body figure{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media(max-width:640px){.container{padding:0 16px;}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(15,12,23,.92);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{background:rgba(15,12,23,.98);border-bottom-color:var(--line);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:78px;transition:height .25s var(--ease);}
.site-header.is-scrolled .nav-wrap{height:64px;}

.logo{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-bright));
  color:var(--primary-ink);font-size:17px;transform:rotate(-6deg);
  box-shadow:0 0 0 1px rgba(200,240,74,.35);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-name{color:var(--ink-1);font-size:16px;font-weight:700;letter-spacing:-.01em;}
.logo-sub{color:var(--ink-3);font-size:11.5px;letter-spacing:.02em;}

.nav-menu{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;padding:8px 12px;border-radius:8px;
  color:var(--ink-2);font-size:14.5px;white-space:nowrap;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link:hover{color:var(--ink-1);background:rgba(124,92,255,.12);}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}

.hamburger{
  display:none;width:38px;height:38px;border-radius:var(--radius-sm);
  background:var(--surface);border:1px solid var(--line);color:var(--ink-1);
  cursor:pointer;transition:border-color .2s var(--ease),color .2s var(--ease);
}
.hamburger:hover{border-color:var(--line-hover);color:var(--primary);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 20px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:14.5px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-pill{border-radius:999px;}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-bright));
  color:var(--primary-ink);
}
.btn-primary:hover{box-shadow:0 0 0 4px rgba(200,240,74,.16),0 8px 22px rgba(200,240,74,.22);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{
  background:transparent;border-color:rgba(200,240,74,.55);color:var(--primary);
}
.btn-ghost:hover{background:rgba(200,240,74,.12);border-color:var(--primary);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-quiet{
  background:var(--surface-2);border-color:var(--line);color:var(--ink-1);
}
.btn-quiet:hover{border-color:var(--line-hover);color:var(--primary);transform:translateY(-2px);}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600;}
.link-arrow i{transition:transform .2s var(--ease);}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 11px;border-radius:999px;font-size:11.5px;font-weight:600;
  letter-spacing:.02em;line-height:1.7;border:1px solid;
}
.badge-primary{color:var(--primary);border-color:rgba(200,240,74,.5);background:rgba(200,240,74,.08);}
.badge-secondary{color:#B9A6FF;border-color:rgba(124,92,255,.5);background:rgba(124,92,255,.12);}
.badge-accent{color:var(--accent);border-color:rgba(255,138,61,.45);background:rgba(255,138,61,.1);}
.badge-muted{color:var(--ink-3);border-color:var(--line);background:var(--surface-2);}

/* ---------- page hero ---------- */
.page-hero{position:relative;padding:150px 0 72px;isolation:isolate;overflow:hidden;}
.page-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.24;z-index:-2;}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:radial-gradient(900px 460px at 18% 8%,rgba(124,92,255,.32),transparent 62%),
             linear-gradient(180deg,rgba(15,12,23,.72),rgba(15,12,23,.96));
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:26px;flex-wrap:wrap;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--line-hover);}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;}
.page-title{
  color:var(--ink-1);font-size:46px;line-height:1.22;font-weight:700;letter-spacing:-.01em;
  margin:18px 0 18px;
}
.hero-lead{font-size:16.5px;color:var(--ink-2);max-width:600px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 30px;}
.stat-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;}
.stat-item{border-left:2px solid var(--line);padding-left:12px;}
.stat-num{color:var(--primary);font-size:19px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.4;}
.stat-label{color:var(--ink-3);font-size:12.5px;letter-spacing:.02em;}
.hero-figure{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);}
.hero-figure img{width:100%;height:360px;object-fit:cover;}
.hero-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 16px;font-size:12.5px;color:var(--ink-2);
  background:linear-gradient(180deg,rgba(15,12,23,0),rgba(15,12,23,.9));
}
.hero-divider{height:1px;margin-top:64px;background:linear-gradient(90deg,rgba(200,240,74,.55),rgba(44,37,64,0));}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:44px;max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;color:var(--primary);
  font-size:12.5px;font-weight:600;letter-spacing:.06em;margin-bottom:14px;
}
.eyebrow::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--primary);}
.section-title{color:var(--ink-1);font-size:33px;line-height:1.28;font-weight:700;letter-spacing:-.01em;margin-bottom:14px;}
.section-desc{color:var(--ink-2);font-size:15.5px;}

/* ---------- filter layout ---------- */
.tool-layout{display:grid;grid-template-columns:258px minmax(0,1fr);gap:28px;align-items:start;}
.filter-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;position:sticky;top:96px;
}
.filter-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:18px;}
.filter-title{color:var(--ink-1);font-size:15px;font-weight:700;}
.filter-clear{background:none;border:none;color:var(--primary);font-size:12.5px;cursor:pointer;padding:2px 4px;border-radius:6px;}
.filter-clear:hover{background:rgba(200,240,74,.12);}
.filter-group{margin-bottom:22px;}
.filter-group:last-child{margin-bottom:0;}
.filter-group-title{color:var(--ink-3);font-size:12.5px;letter-spacing:.04em;margin-bottom:10px;}
.check{display:flex;align-items:center;gap:9px;padding:6px 0;font-size:14px;color:var(--ink-2);cursor:pointer;min-height:34px;}
.check input{
  appearance:none;-webkit-appearance:none;width:16px;height:16px;flex-shrink:0;
  border:1px solid var(--line-hover);border-radius:5px;background:var(--surface-2);
  cursor:pointer;position:relative;transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.check input:checked{background:var(--primary);border-color:var(--primary);}
.check input:checked::after{
  content:"";position:absolute;left:5px;top:1.5px;width:4px;height:8px;
  border-right:2px solid var(--primary-ink);border-bottom:2px solid var(--primary-ink);
  transform:rotate(42deg);
}
.check:hover{color:var(--ink-1);}
.filter-toggle{
  display:none;width:100%;justify-content:center;gap:8px;margin-bottom:16px;
}
.sort-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:14px 18px;margin-bottom:22px;
}
.sort-count{color:var(--ink-3);font-size:13.5px;font-variant-numeric:tabular-nums;}
.sort-tabs{display:flex;gap:6px;flex-wrap:wrap;}
.sort-tab{
  background:transparent;border:1px solid var(--line);color:var(--ink-2);
  padding:6px 14px;border-radius:999px;font-size:13px;cursor:pointer;
  transition:all .2s var(--ease);
}
.sort-tab:hover{border-color:var(--line-hover);color:var(--ink-1);}
.sort-tab.is-active{background:rgba(200,240,74,.12);border-color:rgba(200,240,74,.55);color:var(--primary);}

/* ---------- tool cards ---------- */
.tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.tool-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.tool-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);
}
.tool-card:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:var(--shadow-card),0 0 0 4px rgba(200,240,74,.14);}
.tool-card:hover::before{transform:scaleX(1);}
.tool-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.tool-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.tool-card:hover .tool-cover img{transform:scale(1.03);}
.tool-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.tool-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px;}
.tool-name{color:var(--ink-1);font-size:18px;font-weight:600;line-height:1.4;margin-bottom:8px;}
.tool-note{
  color:var(--ink-2);font-size:14px;line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.tool-meta{
  display:flex;gap:16px;flex-wrap:wrap;color:var(--ink-3);font-size:12.5px;
  font-variant-numeric:tabular-nums;padding-top:14px;border-top:1px solid var(--line);margin-bottom:16px;
}
.tool-meta b{color:var(--ink-2);font-weight:600;}
.tool-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;}

/* ---------- flow ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.flow-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 22px;transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.flow-item:hover{border-color:var(--line-hover);transform:translateY(-2px);}
.flow-num{
  font-size:13px;font-weight:700;color:var(--primary);letter-spacing:.08em;
  font-variant-numeric:tabular-nums;display:block;margin-bottom:14px;
}
.flow-title{color:var(--ink-1);font-size:17px;font-weight:600;margin-bottom:8px;}
.flow-text{font-size:14px;color:var(--ink-2);line-height:1.75;}

/* ---------- faq ---------- */
.faq-wrap{max-width:840px;margin:0 auto;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s var(--ease);
}
.faq-item:hover{border-color:var(--line-hover);}
.faq-item.is-open{border-color:rgba(200,240,74,.45);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:none;color:var(--ink-1);font-size:16px;font-weight:600;
  padding:18px 22px;text-align:left;cursor:pointer;line-height:1.6;
}
.faq-q i{color:var(--primary);font-size:14px;transition:transform .25s var(--ease);flex-shrink:0;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ---------- cta ---------- */
.cta-box{
  border:1px solid rgba(200,240,74,.4);border-radius:var(--radius-lg);
  background:linear-gradient(135deg,rgba(124,92,255,.18),rgba(15,12,23,.9));
  padding:52px 44px;text-align:center;
}
.cta-title{color:var(--ink-1);font-size:30px;font-weight:700;line-height:1.32;letter-spacing:-.01em;margin-bottom:14px;}
.cta-text{color:var(--ink-2);font-size:15.5px;max-width:660px;margin:0 auto 28px;}
.cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:70px 0 30px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-text{font-size:13.5px;color:var(--ink-3);line-height:1.85;margin-bottom:18px;max-width:340px;}
.footer-title{color:var(--ink-1);font-size:14px;font-weight:700;margin-bottom:16px;position:relative;padding-left:12px;}
.footer-title::before{content:"";position:absolute;left:0;top:6px;width:3px;height:14px;border-radius:2px;background:var(--primary);}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:13px;color:var(--ink-2);transition:color .2s var(--ease),transform .2s var(--ease);}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.field-row{display:flex;gap:10px;flex-wrap:wrap;width:100%;}
.field{
  flex:1;min-width:180px;background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:10px 14px;color:var(--ink-1);font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field::placeholder{color:var(--ink-3);}
.field:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(200,240,74,.22);}
.field.is-error{border-color:var(--accent);box-shadow:0 0 0 2px rgba(255,138,61,.2);}
.field-hint{font-size:12px;color:var(--ink-3);margin-top:8px;}
.field-hint.is-error{color:var(--accent);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  border-top:1px solid var(--line);margin-top:48px;padding-top:22px;
  font-size:12.5px;color:var(--ink-3);
}
.footer-bottom a{color:var(--ink-2);}
.footer-bottom a:hover{color:var(--primary);}

/* ---------- mobile drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:rgba(15,12,23,.86);
  opacity:0;pointer-events:none;transition:opacity .22s var(--ease);
}
.drawer.is-open{opacity:1;pointer-events:auto;}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:82%;max-width:340px;
  background:var(--bg-1);border-left:1px solid var(--line);
  padding:22px 20px;display:flex;flex-direction:column;gap:6px;
  transform:translateX(100%);transition:transform .26s var(--ease);overflow-y:auto;
}
.drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-close{
  align-self:flex-end;width:36px;height:36px;border-radius:var(--radius-sm);
  background:var(--surface);border:1px solid var(--line);color:var(--ink-1);cursor:pointer;margin-bottom:12px;
}
.drawer-close:hover{color:var(--primary);border-color:var(--line-hover);}
.drawer-link{padding:12px 14px;border-radius:var(--radius-sm);color:var(--ink-2);font-size:15px;}
.drawer-link:hover{background:var(--surface);color:var(--ink-1);}
.drawer-link.is-active{color:var(--primary);background:rgba(200,240,74,.1);}

/* ---------- mobile tabbar & convert bar ---------- */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;display:none;
  background:#181425;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:2px;font-size:10px;color:var(--ink-3);min-height:56px;
}
.tab-item i{font-size:18px;}
.tab-item.is-active{color:var(--primary);}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;border-radius:2px;background:var(--primary);
}
.mobile-convert{
  position:fixed;left:12px;right:12px;bottom:64px;z-index:79;display:none;
  align-items:center;gap:12px;background:#1D1830;border:1px solid var(--line);
  border-radius:999px;padding:8px 10px 8px 8px;box-shadow:var(--shadow-card);
  opacity:0;transform:translateY(10px);pointer-events:none;
  transition:opacity .25s var(--ease),transform .25s var(--ease);
}
.mobile-convert.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.mobile-convert .btn{flex:0 0 60%;}
.mobile-convert .mini-link{flex:0 0 auto;font-size:12.5px;color:var(--ink-2);padding:0 10px;}
.mobile-convert .mini-link:hover{color:var(--primary);}

/* ---------- responsive ---------- */
@media(max-width:1023px){
  .nav-menu{display:none;}
  .hamburger{display:inline-grid;place-items:center;}
  .nav-actions .btn{display:none;}
  .page-hero{padding:126px 0 60px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .page-title{font-size:36px;}
  .section{padding:80px 0;}
  .tool-layout{grid-template-columns:1fr;}
  .filter-panel{position:static;display:none;}
  .filter-panel.is-open{display:block;}
  .filter-toggle{display:inline-flex;}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media(max-width:767px){
  .mobile-tabbar{display:grid;grid-template-columns:repeat(5,1fr);height:56px;}
  .mobile-convert{display:flex;}
  .site-body{padding-bottom:132px;}
  .hero-figure img{height:250px;}
  .modal-safe{height:auto;}
}
@media(max-width:640px){
  .page-title{font-size:31px;}
  .section-title{font-size:24px;}
  .section{padding:60px 0;}
  .tool-grid{grid-template-columns:1fr;}
  .flow-grid{grid-template-columns:1fr;}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr;}
  .cta-box{padding:36px 20px;}
  .cta-title{font-size:23px;}
  .hero-actions .btn{flex:1 1 100%;justify-content:center;}
  .tool-actions{flex-direction:column;align-items:stretch;}
  .tool-actions .link-arrow{justify-content:flex-end;}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
  .tool-card:hover,.flow-item:hover,.btn:hover{transform:none!important;}
}

/* roulang page: category3 */
:root{
  --bg-0:#0F0C17; --bg-1:#171322; --surface:#201A2E; --surface-2:#292140;
  --primary:#C8F04A; --primary-bright:#D6FF5E; --primary-ink:#1A2205;
  --secondary:#7C5CFF; --secondary-deep:#5F41E0; --accent:#FF8A3D;
  --ink-1:#F2EFF8; --ink-2:#B9B2CC; --ink-3:#7E7793;
  --line:#2C2540; --line-hover:#3F3560;
  --r-card:16px; --r-lg:20px; --r-btn:12px; --r-field:10px;
  --shadow-card:0 12px 32px rgba(8,6,14,.55);
  --glow:0 0 0 4px rgba(200,240,74,.14);
  --ease:cubic-bezier(.2,.8,.2,1);
  --font-cn:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Manrope","PingFang SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink-2);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;color:var(--ink-1);font-weight:700;letter-spacing:-.01em;line-height:1.25;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:rgba(200,240,74,.28);color:#fff;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.01em;}
.section{padding:104px 0;}
.section-sm{padding:72px 0;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-title{font-size:34px;display:flex;align-items:center;gap:14px;}
.section-title::before{content:"";width:4px;height:30px;border-radius:4px;background:var(--primary);flex:none;}
.section-desc{margin-top:14px;color:var(--ink-3);font-size:15px;max-width:640px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary-bright),var(--primary));
  color:var(--primary-ink);
  box-shadow:0 8px 24px rgba(200,240,74,.22);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(200,240,74,.34);color:var(--primary-ink);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(200,240,74,.2);}
.btn-ghost{
  background:transparent;
  border:1px solid rgba(200,240,74,.42);
  color:var(--primary);
}
.btn-ghost:hover{background:rgba(200,240,74,.12);border-color:rgba(200,240,74,.7);}
.btn-ghost:active{transform:translateY(1px);}
.btn-outline{
  background:transparent;border:1px solid var(--line-hover);color:var(--ink-1);
}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:rgba(200,240,74,.06);}
.btn-pill{border-radius:999px;}
.btn-sm{padding:8px 14px;font-size:14px;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary);
  font-size:14px;font-weight:600;text-decoration:underline;text-underline-offset:4px;
}
.link-arrow i{transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--primary-bright);}
.link-arrow:hover i{transform:translateX(2px);}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:11px;font-weight:600;letter-spacing:.02em;line-height:1.7;
}
.badge-primary{border:1px solid rgba(200,240,74,.5);color:var(--primary);}
.badge-secondary{border:1px solid rgba(124,92,255,.55);color:#B4A2FF;}
.badge-accent{border:1px solid rgba(255,138,61,.5);color:var(--accent);}
.badge-solid{background:rgba(200,240,74,.14);color:var(--primary);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(15,12,23,.9);
  border-bottom:1px solid transparent;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.site-header.is-scrolled{background:rgba(15,12,23,.97);border-bottom-color:var(--line);}
.nav-wrap{display:flex;align-items:center;gap:20px;height:72px;transition:height .25s var(--ease);}
.site-header.is-scrolled .nav-wrap{height:64px;}
.logo{display:flex;align-items:center;gap:12px;flex:none;}
.logo-mark{
  width:40px;height:40px;flex:none;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--secondary),#3B2B78 70%);
  color:var(--primary);font-size:18px;
  box-shadow:inset 0 0 0 1px rgba(200,240,74,.22);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-name{color:var(--ink-1);font-size:16px;font-weight:700;letter-spacing:-.01em;}
.logo-sub{color:var(--ink-3);font-size:11px;letter-spacing:.02em;}
.nav-menu{display:flex;align-items:center;gap:2px;margin:0 auto;}
.nav-link{
  position:relative;padding:9px 13px;border-radius:10px;
  font-size:15px;color:var(--ink-2);
}
.nav-link:hover{color:var(--ink-1);background:rgba(255,255,255,.04);}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;background:var(--primary);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:none;}
.hamburger{
  display:none;width:40px;height:40px;border-radius:11px;
  border:1px solid var(--line);color:var(--ink-1);font-size:16px;
}
.hamburger:hover{border-color:var(--primary);color:var(--primary);}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;display:none;
  background:rgba(8,6,14,.7);
}
.drawer.is-open{display:block;}
.drawer-panel{
  position:absolute;right:0;top:0;bottom:0;width:min(340px,88vw);
  background:var(--bg-1);border-left:1px solid var(--line);
  padding:20px;display:flex;flex-direction:column;gap:18px;
  animation:slideIn .25s var(--ease);
}
@keyframes slideIn{from{transform:translateX(24px);opacity:.4}to{transform:translateX(0);opacity:1}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);color:var(--ink-1);}
.drawer-close:hover{border-color:var(--primary);color:var(--primary);}
.drawer-links{display:flex;flex-direction:column;gap:4px;}
.drawer-links a{padding:12px 14px;border-radius:12px;font-size:16px;color:var(--ink-2);border:1px solid transparent;}
.drawer-links a:hover{background:var(--surface);color:var(--ink-1);}
.drawer-links a.is-active{color:var(--primary);border-color:rgba(200,240,74,.32);background:rgba(200,240,74,.08);}
.drawer-actions{margin-top:auto;display:flex;flex-direction:column;gap:10px;}

/* ---------- breadcrumb ---------- */
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);flex-wrap:wrap;}
.crumb a:hover{color:var(--primary);}
.crumb .sep{opacity:.5;}
.crumb .current{color:var(--ink-3);}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  padding:56px 0 72px;
  border-bottom:1px solid var(--line);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.5;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,12,23,.88) 0%,rgba(15,12,23,.94) 55%,var(--bg-0) 100%),
             radial-gradient(760px 420px at 22% 18%,rgba(124,92,255,.38),transparent 70%);
}
.cat-hero .container{position:relative;z-index:2;}
.cat-hero h1{
  font-size:48px;margin:22px 0 18px;max-width:900px;
}
.cat-hero h1 em{font-style:normal;color:var(--primary);}
.cat-hero .lead{font-size:17px;color:var(--ink-2);max-width:760px;line-height:1.85;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:36px;
  padding-top:26px;border-top:1px solid var(--line);
}
.hero-fact{display:flex;flex-direction:column;gap:2px;}
.hero-fact .v{font-size:22px;font-weight:700;color:var(--primary);font-family:var(--font-num);}
.hero-fact .k{font-size:13px;color:var(--ink-3);}

/* ---------- stat band ---------- */
.stat-band{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  display:grid;grid-template-columns:repeat(4,1fr);
  overflow:hidden;
}
.stat-cell{padding:22px 24px;border-right:1px solid var(--line);}
.stat-cell:last-child{border-right:0;}
.stat-cell .v{font-size:26px;font-weight:700;color:var(--primary);font-family:var(--font-num);}
.stat-cell .k{font-size:13px;color:var(--ink-3);margin-top:4px;}
.stat-note{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:16px;font-size:13px;color:var(--ink-3);
}
.stat-note i{color:var(--accent);}

/* ---------- toolbar ---------- */
.toolbar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:16px 20px;border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--bg-1);margin:32px 0 20px;
}
.toolbar-group{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.toolbar-label{font-size:13px;color:var(--ink-3);}
.chip{
  padding:7px 14px;border-radius:999px;border:1px solid var(--line);
  font-size:13px;color:var(--ink-2);background:var(--surface);
  transition:all .2s var(--ease);
}
.chip:hover{border-color:var(--line-hover);color:var(--ink-1);}
.chip.is-on{background:rgba(200,240,74,.14);border-color:rgba(200,240,74,.5);color:var(--primary);font-weight:600;}

/* ---------- version list ---------- */
.v-list{display:flex;flex-direction:column;gap:14px;}
.v-item{
  display:grid;grid-template-columns:80px 1fr auto;gap:20px;align-items:center;
  padding:20px;border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--surface);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.v-item:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:var(--shadow-card),var(--glow);}
.v-thumb{
  width:80px;height:80px;border-radius:14px;overflow:hidden;flex:none;
  border:1px solid var(--line);background:var(--surface-2);
}
.v-thumb img{width:100%;height:100%;object-fit:cover;}
.v-main{min-width:0;}
.v-title{
  font-size:18px;font-weight:600;color:var(--ink-1);
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.v-desc{font-size:14px;color:var(--ink-2);margin-top:8px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.v-meta{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:12px;font-size:13px;color:var(--ink-3);}
.v-meta span{display:inline-flex;align-items:center;gap:6px;}
.v-meta i{color:var(--ink-3);font-size:12px;}
.v-meta .hl{color:var(--accent);}
.v-action{display:flex;flex-direction:column;align-items:flex-end;gap:8px;}
.v-action .size{font-size:13px;color:var(--ink-3);font-family:var(--font-num);}

/* ---------- pagination ---------- */
.pager{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:40px;flex-wrap:wrap;}
.page-btn{
  min-width:42px;height:42px;padding:0 12px;border-radius:11px;
  border:1px solid var(--line);background:var(--surface);color:var(--ink-2);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-family:var(--font-num);
  transition:all .2s var(--ease);
}
.page-btn:hover{border-color:var(--line-hover);color:var(--ink-1);transform:translateY(-1px);}
.page-btn.is-current{background:linear-gradient(135deg,var(--primary-bright),var(--primary));color:var(--primary-ink);border-color:transparent;font-weight:700;}
.page-btn.is-disabled{opacity:.45;cursor:not-allowed;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.step{
  padding:26px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.step:hover{border-color:var(--line-hover);transform:translateY(-2px);}
.step .idx{font-family:var(--font-num);font-size:13px;color:var(--primary);letter-spacing:.08em;}
.step h3{font-size:19px;margin:10px 0 10px;}
.step p{font-size:14px;color:var(--ink-2);line-height:1.8;}

/* ---------- split note ---------- */
.note-split{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:center;}
.note-split .figure{
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--surface-2);
}
.note-split .figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.note-list{display:flex;flex-direction:column;gap:16px;margin-top:22px;}
.note-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-2);line-height:1.8;}
.note-list i{color:var(--primary);margin-top:6px;font-size:13px;flex:none;}

/* ---------- faq ---------- */
.faq-wrap{max-width:840px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s var(--ease);
}
.faq-item:hover{border-color:var(--line-hover);}
.faq-item.is-open{border-color:rgba(200,240,74,.4);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--ink-1);
}
.faq-q i{color:var(--primary);transition:transform .25s var(--ease);flex:none;font-size:14px;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;opacity:0;overflow:hidden;transition:max-height .3s var(--ease),opacity .25s var(--ease);}
.faq-item.is-open .faq-a{max-height:320px;opacity:1;}
.faq-a p{padding:0 22px 20px;font-size:15px;color:var(--ink-2);line-height:1.85;}

/* ---------- cta ---------- */
.cta-band{
  border:1px solid rgba(200,240,74,.32);border-radius:var(--r-lg);
  background:radial-gradient(620px 320px at 88% 12%,rgba(124,92,255,.28),transparent 68%),var(--bg-1);
  padding:52px 44px;text-align:center;
}
.cta-band h2{font-size:32px;}
.cta-band p{margin:16px auto 0;max-width:640px;font-size:15px;color:var(--ink-2);}
.cta-actions{display:flex;justify-content:center;gap:12px;margin-top:28px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 32px;margin-top:104px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-text{font-size:14px;color:var(--ink-2);line-height:1.85;margin-bottom:18px;}
.footer-title{font-size:14px;color:var(--primary);margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.footer-title::before{content:"";width:12px;height:2px;border-radius:2px;background:var(--primary);}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:13px;color:var(--ink-2);transition:all .2s var(--ease);}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.field-row{margin-top:6px;}
.field{
  flex:1;min-width:180px;padding:11px 14px;border-radius:var(--r-field);
  background:var(--surface-2);border:1px solid var(--line);color:var(--ink-1);font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field::placeholder{color:var(--ink-3);}
.field:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(200,240,74,.16);}
.field.is-error{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,138,61,.14);}
.field-hint{font-size:12px;color:var(--ink-3);margin-top:8px;}
.field-hint.is-error{color:var(--accent);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);
}
.footer-bottom a{color:var(--ink-3);}
.footer-bottom a:hover{color:var(--primary);}

/* ---------- mobile nav + bar ---------- */
.mobile-tab{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(23,19,34,.98);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tab ul{display:flex;height:56px;}
.mobile-tab li{flex:1;}
.mobile-tab a{
  height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10px;color:var(--ink-3);position:relative;
}
.mobile-tab a i{font-size:18px;}
.mobile-tab a.is-active{color:var(--primary);}
.mobile-tab a.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;border-radius:2px;background:var(--primary);
}
.mobile-bar{
  display:none;position:fixed;left:0;right:0;z-index:69;
  bottom:calc(56px + env(safe-area-inset-bottom));
  height:56px;padding:8px 16px;gap:12px;align-items:center;
  background:rgba(32,26,46,.96);border-top:1px solid var(--line);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
}
.mobile-bar.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.mobile-bar .btn{flex:0 0 60%;}
.mobile-bar .side{font-size:13px;color:var(--ink-2);text-decoration:underline;text-underline-offset:4px;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{max-width:1080px;}
}
@media (max-width:1023px){
  .nav-menu{display:none;}
  .hamburger{display:inline-flex;align-items:center;justify-content:center;}
  .nav-actions .btn-ghost{display:none;}
  .cat-hero h1{font-size:38px;}
  .section{padding:80px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .steps{grid-template-columns:1fr;}
  .note-split{grid-template-columns:1fr;gap:24px;}
  .stat-band{grid-template-columns:1fr 1fr;}
  .stat-cell:nth-child(2){border-right:0;}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid var(--line);}
}
@media (max-width:767px){
  body{font-size:16px;padding-bottom:132px;}
  .container{padding:0 16px;}
  .section{padding:60px 0;}
  .section-title{font-size:24px;}
  .section-title::before{height:22px;}
  .cat-hero{padding:32px 0 48px;}
  .cat-hero h1{font-size:31px;margin:16px 0 14px;}
  .cat-hero .lead{font-size:15px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-facts{gap:18px 26px;margin-top:26px;padding-top:20px;}
  .hero-fact .v{font-size:18px;}
  .stat-band{grid-template-columns:1fr;}
  .stat-cell{border-right:0;border-bottom:1px solid var(--line);padding:18px;}
  .stat-cell:last-child{border-bottom:0;}
  .v-item{grid-template-columns:56px 1fr;grid-template-areas:"thumb main" "action action";gap:14px;padding:16px;}
  .v-thumb{grid-area:thumb;width:56px;height:56px;border-radius:12px;}
  .v-main{grid-area:main;}
  .v-action{grid-area:action;flex-direction:row;align-items:center;justify-content:space-between;
    border-top:1px solid var(--line);padding-top:12px;}
  .v-title{font-size:16px;}
  .v-desc{font-size:13px;-webkit-line-clamp:2;}
  .toolbar{padding:14px;margin:24px 0 16px;}
  .cta-band{padding:34px 20px;}
  .cta-band h2{font-size:23px;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .site-footer{padding:48px 0 24px;margin-top:60px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .mobile-tab{display:block;}
  .mobile-bar{display:flex;}
  .pager .page-btn.hide-m{display:none;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
  .logo-sub{display:none;}
  .cat-hero h1{font-size:28px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --bg-0:#0F0C17;
  --bg-1:#171322;
  --surface:#201A2E;
  --surface-2:#292140;
  --primary:#C8F04A;
  --primary-bright:#DCFF7A;
  --primary-ink:#1A2205;
  --primary-soft:rgba(200,240,74,.14);
  --secondary:#7C5CFF;
  --accent:#FF8A3D;
  --ink-1:#F2EFF8;
  --ink-2:#B9B2CC;
  --ink-3:#7E7793;
  --line:#2C2540;
  --line-hover:#3F3560;
  --r-field:10px;
  --r-btn:12px;
  --r-card:16px;
  --r-lg:20px;
  --shadow-card:0 12px 32px rgba(8,6,14,.55);
  --ease:cubic-bezier(.2,.8,.2,1);
  --section-y:104px;
}
@media (max-width:1023px){:root{--section-y:80px}}
@media (max-width:640px){:root{--section-y:60px}}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
html body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink-2);
  font-family:'Inter','PingFang SC','HarmonyOS Sans','Source Han Sans SC','Microsoft YaHei',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
html body.no-scroll{overflow:hidden}
h1,h2,h3,h4,p,figure,ul,ol,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin-inline:auto;padding-inline:24px}
@media (max-width:640px){.container{padding-inline:16px}}

.section{padding-block:var(--section-y)}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:840px;margin-bottom:48px}
.section-head.center{margin-inline:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.06em;color:var(--primary);
  background:var(--primary-soft);border:1px solid rgba(200,240,74,.28);
  border-radius:999px;padding:6px 14px;margin-bottom:18px;font-weight:600;
}
.section-head h2{
  color:var(--ink-1);font-size:34px;line-height:1.25;font-weight:700;letter-spacing:-.01em;
  padding-left:16px;border-left:4px solid var(--primary);
}
.section-head p{margin-top:16px;color:var(--ink-2);font-size:16px}
@media (max-width:767px){
  .section-head h2{font-size:24px}
  .section-head p{font-size:15px}
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(15,12,23,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-scrolled{background:rgba(15,12,23,.96);border-bottom-color:var(--line)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:80px;transition:height .2s var(--ease)}
.site-header.is-scrolled .nav-wrap{height:64px}
.logo{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary-bright),var(--primary));
  color:var(--primary-ink);font-size:18px;
  box-shadow:0 6px 18px rgba(200,240,74,.22);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-name{color:var(--ink-1);font-size:16px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.logo-sub{color:var(--ink-3);font-size:11px;letter-spacing:.04em}
.nav-menu{display:flex;align-items:center;gap:2px;margin-inline:auto}
.nav-link{
  position:relative;padding:9px 12px;border-radius:10px;
  font-size:15px;color:var(--ink-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--ink-1);background:var(--surface)}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.hamburger{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  display:none;align-items:center;justify-content:center;color:var(--ink-1);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.hamburger:hover{border-color:var(--line-hover);background:var(--surface)}
@media (max-width:1023px){
  .nav-menu{display:none}
  .nav-actions .btn-ghost{display:none}
  .hamburger{display:inline-flex}
}
@media (max-width:520px){
  .logo-sub{display:none}
  .logo-name{font-size:15px}
  .nav-actions .btn-primary span.btn-label{display:none}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 18px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn i{font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,var(--primary-bright),var(--primary));
  color:var(--primary-ink);
  box-shadow:0 8px 22px rgba(200,240,74,.18);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 4px var(--primary-soft),0 12px 26px rgba(200,240,74,.28)}
.btn-primary:active{transform:translateY(1px)}
.btn-primary:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{background:transparent;border-color:rgba(200,240,74,.5);color:var(--primary)}
.btn-ghost:hover{background:rgba(200,240,74,.12);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-pill{border-radius:999px}
.btn-sm{padding:9px 14px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:600;
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:color .2s var(--ease),gap .2s var(--ease);
}
.link-arrow i{font-size:12px;transition:transform .2s var(--ease)}
.link-arrow:hover{color:var(--primary-bright);gap:9px}
.link-arrow:hover i{transform:translateX(2px)}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(8,6,14,.6);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);z-index:90;
  background:var(--bg-1);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .28s var(--ease);
  display:flex;flex-direction:column;padding:20px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);color:var(--ink-1);display:inline-flex;align-items:center;justify-content:center}
.drawer-close:hover{border-color:var(--line-hover)}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{
  padding:13px 14px;border-radius:12px;font-size:15px;color:var(--ink-2);
  border:1px solid transparent;transition:all .2s var(--ease);
}
.drawer-nav a:hover{background:var(--surface);color:var(--ink-1)}
.drawer-nav a.is-active{color:var(--primary);border-color:rgba(200,240,74,.35);background:var(--primary-soft)}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.32;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(120% 90% at 12% 8%, rgba(124,92,255,.34) 0%, rgba(15,12,23,.86) 52%, rgba(15,12,23,.98) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding-block:72px 64px}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--ink-3);margin-bottom:22px}
.breadcrumb a{color:var(--ink-3);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--line-hover)}
.breadcrumb .current{color:var(--ink-2)}
.page-hero h1{
  color:var(--ink-1);font-size:48px;line-height:1.22;font-weight:700;letter-spacing:-.01em;
  max-width:20ch;
}
.page-hero-sub{margin-top:20px;max-width:62ch;font-size:17px;color:var(--ink-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:12px;margin-top:44px;max-width:780px;
}
.hero-stats li{
  background:rgba(32,26,46,.7);border:1px solid var(--line);border-radius:14px;
  padding:14px 16px;
}
.hero-stats .k{display:block;font-size:12px;color:var(--ink-3);letter-spacing:.04em}
.hero-stats .v{display:block;font-size:16px;color:var(--primary);font-weight:600;margin-top:4px;font-variant-numeric:tabular-nums}
@media (max-width:1023px){
  .page-hero-inner{padding-block:56px 48px}
  .page-hero h1{font-size:38px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .page-hero h1{font-size:31px;max-width:none}
  .page-hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:10px;margin-top:32px}
}

/* ---------- info strip ---------- */
.info-strip{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:22px;box-shadow:var(--shadow-card);
}
.info-strip .item{display:flex;gap:14px;align-items:flex-start}
.info-strip .ico{
  width:38px;height:38px;border-radius:11px;flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);font-size:16px;
}
.info-strip h3{font-size:16px;color:var(--ink-1);font-weight:600;margin-bottom:4px}
.info-strip p{font-size:14px;color:var(--ink-2)}
@media (max-width:900px){.info-strip{grid-template-columns:1fr}}
.negative-margin{margin-top:-40px;position:relative;z-index:3}
@media (max-width:767px){.negative-margin{margin-top:0}}

/* ---------- split blocks ---------- */
.split-block{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;align-items:center;padding-block:44px;
}
.split-block + .split-block{border-top:1px dashed var(--line)}
.split-block.reverse .split-media{order:2}
.split-media{position:relative}
.split-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.split-media::after{
  content:"";position:absolute;inset:auto -10px -10px auto;width:120px;height:120px;
  border-radius:24px;background:var(--primary-soft);z-index:-1;
}
.step-num{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--primary);margin-bottom:12px;font-variant-numeric:tabular-nums;
}
.split-body h3{font-size:24px;color:var(--ink-1);font-weight:700;line-height:1.35;letter-spacing:-.01em}
.split-body > p{margin-top:14px;font-size:16px;color:var(--ink-2)}
.point-list{margin-top:26px;display:flex;flex-direction:column;gap:16px}
.point-list li{display:flex;gap:12px;align-items:flex-start}
.point-list i{color:var(--primary);font-size:15px;margin-top:7px}
.point-list strong{display:block;color:var(--ink-1);font-size:16px;font-weight:600}
.point-list span{display:block;font-size:14px;color:var(--ink-2);margin-top:2px}
.split-body .link-arrow{margin-top:26px}
@media (max-width:900px){
  .split-block{grid-template-columns:1fr;gap:28px;padding-block:32px}
  .split-block.reverse .split-media{order:0}
  .split-body h3{font-size:20px}
}

/* ---------- table ---------- */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--surface);box-shadow:var(--shadow-card);
  -webkit-overflow-scrolling:touch;
}
.data-table{min-width:720px;font-size:14px}
.data-table th,.data-table td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line)}
.data-table thead th{
  background:var(--surface-2);color:var(--ink-1);font-size:13px;font-weight:600;
  letter-spacing:.03em;white-space:nowrap;
}
.data-table tbody tr:nth-child(even){background:rgba(41,33,64,.35)}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table td{color:var(--ink-2)}
.data-table td:first-child{color:var(--ink-1);font-weight:600}
.data-table .num{font-variant-numeric:tabular-nums;color:var(--primary)}
.table-note{margin-top:14px;font-size:13px;color:var(--ink-3)}
.scroll-fade{position:relative}
.scroll-fade::after{
  content:"";position:absolute;top:0;right:0;bottom:0;width:56px;
  background:linear-gradient(90deg,rgba(32,26,46,0),rgba(32,26,46,.9));
  border-radius:0 var(--r-lg) var(--r-lg) 0;pointer-events:none;
}
@media (max-width:767px){.scroll-fade::after{display:none}}

/* ---------- steps ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.step-card:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:0 0 0 4px var(--primary-soft)}
.step-card .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:var(--primary-soft);
  color:var(--primary);font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.step-card h3{margin-top:16px;font-size:17px;color:var(--ink-1);font-weight:600}
.step-card p{margin-top:8px;font-size:14px;color:var(--ink-2)}
@media (max-width:1023px){.steps-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.steps-grid{grid-template-columns:1fr}}

/* ---------- faq ---------- */
.faq-list{max-width:840px;margin-inline:auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:var(--line-hover)}
.faq-item.is-open{border-color:rgba(200,240,74,.4);box-shadow:0 0 0 4px var(--primary-soft)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--ink-1);
}
.faq-q i{color:var(--primary);font-size:14px;transition:transform .25s var(--ease);flex-shrink:0}
.faq-item.is-open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .3s var(--ease),opacity .3s var(--ease)}
.faq-item.is-open .faq-a{opacity:1}
.faq-a-inner{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-2)}
@media (max-width:640px){.faq-q{font-size:15px;padding:16px 18px}.faq-a-inner{padding:0 18px 18px;font-size:14px}}

/* ---------- cta ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  border:1px solid rgba(200,240,74,.35);border-radius:24px;
  background:linear-gradient(140deg,rgba(124,92,255,.22),rgba(15,12,23,.9) 60%);
  padding:56px 48px;text-align:center;box-shadow:var(--shadow-card);
}
.cta-panel h2{font-size:32px;color:var(--ink-1);font-weight:700;line-height:1.3;letter-spacing:-.01em}
.cta-panel p{margin-top:14px;font-size:16px;color:var(--ink-2);max-width:60ch;margin-inline:auto}
.cta-panel .hero-actions{justify-content:center}
@media (max-width:767px){
  .cta-panel{padding:34px 22px}
  .cta-panel h2{font-size:23px}
  .cta-panel .hero-actions .btn{width:100%}
}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding-block:64px 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-title{font-size:14px;color:var(--ink-1);font-weight:600;margin-bottom:16px;position:relative;padding-left:12px}
.footer-title::before{content:"";position:absolute;left:0;top:6px;width:4px;height:14px;border-radius:2px;background:var(--primary)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13px;color:var(--ink-2);transition:color .2s var(--ease),transform .2s var(--ease);width:fit-content}
.footer-links a:hover{color:var(--primary);transform:translateX(2px)}
.footer-text{font-size:14px;color:var(--ink-2);max-width:38ch}
.field-row{margin-top:18px}
.field{
  flex:1 1 200px;min-width:0;background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--r-field);padding:11px 14px;font-size:14px;color:var(--ink-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field::placeholder{color:var(--ink-3)}
.field:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.field.is-error{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,138,61,.16)}
.field-hint{margin-top:10px;font-size:12px;color:var(--ink-3)}
.field-hint.is-error{color:var(--accent)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--ink-3);
}
.footer-bottom a{color:var(--ink-2)}
.footer-bottom a:hover{color:var(--primary)}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}

/* ---------- mobile tabbar & cta ---------- */
.mobile-tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:95;
  background:rgba(23,19,34,.97);backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tabbar .tabs{display:flex;height:56px}
.tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10px;color:var(--ink-3);position:relative;transition:color .2s var(--ease);
}
.tab-item i{font-size:20px}
.tab-item.is-active{color:var(--primary)}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;border-radius:2px;background:var(--primary);
}
.mobile-cta{
  display:none;position:fixed;left:0;right:0;z-index:94;
  bottom:calc(56px + env(safe-area-inset-bottom));
  background:rgba(32,26,46,.97);border-top:1px solid var(--line);
  padding:10px 16px;gap:12px;align-items:center;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s var(--ease);
}
.mobile-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.mobile-cta .btn{flex:0 0 60%}
.mobile-cta .link-arrow{flex:1 1 auto;justify-content:center;font-size:13px}
@media (max-width:767px){
  .mobile-tabbar,.mobile-cta{display:flex}
  html body{padding-bottom:132px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}