/* roulang page: index */
:root{
  --bg-0:#0B0E12; --bg-1:#12161C; --bg-2:#1A2028; --line:#262E38;
  --brand:#FF5A1F; --brand-600:#FF7A3D; --brand-700:#E04A12;
  --accent:#12E0C4; --warn:#FFC53D;
  --tx-1:#EEF2F6; --tx-2:#A7B2BE; --tx-3:#6E7A87;
  --ok:#35D07F; --err:#FF4D5E;
  --r-card:14px; --r-btn:10px; --r-badge:6px; --r-input:10px;
  --sh-1:0 8px 24px rgba(0,0,0,.35); --sh-2:0 14px 32px rgba(0,0,0,.5);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-0);color:var(--tx-1);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 32px}}
.section{padding:48px 0}
@media(min-width:768px){.section{padding:64px 0}}
@media(min-width:1024px){.section{padding:80px 0}}
.dot-grid{background-image:radial-gradient(rgba(255,255,255,.055) 1px,transparent 1px);background-size:10px 10px}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.sec-title{font-size:26px;line-height:1.3;font-weight:700;letter-spacing:.01em}
@media(min-width:1024px){.sec-title{font-size:30px}}
.sec-sub{color:var(--tx-2);font-size:15px;margin-top:8px;max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--accent);text-transform:uppercase}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg-1);border-bottom:1px solid var(--line)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;height:64px;display:flex;align-items:center;gap:24px;position:relative}
@media(min-width:1024px){.nav-inner{padding:0 32px;gap:32px}}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{position:relative;width:26px;height:26px;background:linear-gradient(135deg,var(--brand),var(--brand-700));clip-path:polygon(22% 0,100% 0,78% 100%,0 100%)}
.logo-mark::after{content:"";position:absolute;right:2px;top:2px;width:6px;height:6px;border-radius:50%;background:var(--accent);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.82)}}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--tx-1);white-space:nowrap}
.desktop-nav{display:none}
@media(min-width:1024px){.desktop-nav{display:flex;align-items:center;gap:26px;margin-left:8px}}
.nav-link{position:relative;font-size:15px;font-weight:600;color:var(--tx-2);padding:20px 0;transition:color .18s ease}
.nav-link:hover{color:var(--tx-1)}
.nav-link.is-active{color:var(--tx-1)}
.nav-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;background:var(--accent)}
.nav-right{margin-left:auto;display:none;align-items:center;gap:12px}
@media(min-width:1024px){.nav-right{display:flex}}
.mega-wrap{position:relative}
.mega-trigger{display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);background:transparent;font-size:14px;font-weight:600;color:var(--tx-2);cursor:pointer;transition:border-color .18s ease,color .18s ease}
.mega-wrap:hover .mega-trigger,.mega-trigger:focus-visible{border-color:var(--accent);color:var(--accent)}
.mega-caret{width:8px;height:8px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px)}
.mega-panel{position:absolute;right:0;top:calc(100% + 12px);width:840px;background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px;box-shadow:var(--sh-2);opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .12s ease,transform .12s ease,visibility .12s ease}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--tx-3);margin-bottom:12px}
.mega-list{display:flex;flex-direction:column;gap:2px}
.mega-item{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;font-size:14px;color:var(--tx-2);transition:background .16s ease,color .16s ease}
.mega-item:hover{background:var(--bg-2);color:var(--tx-1)}
.mega-num{font-variant-numeric:tabular-nums;font-size:12px;font-weight:700;color:var(--brand);min-width:18px}
.mega-mini{display:block;padding:8px 0;border-bottom:1px solid var(--line)}
.mega-mini:last-child{border-bottom:0}
.mega-mini-t{font-size:14px;color:var(--tx-1);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mega-mini-d{font-size:12px;color:var(--tx-3);margin-top:2px}
.mega-card{display:block;padding:14px;background:var(--bg-2);border:1px solid var(--line);border-radius:12px;transition:border-color .18s ease,transform .18s ease}
.mega-card + .mega-card{margin-top:12px}
.mega-card:hover{border-color:rgba(18,224,196,.4);transform:translateY(-2px)}
.mega-card-t{font-size:15px;font-weight:600;margin-bottom:4px}
.mega-card-d{font-size:12px;color:var(--tx-3);line-height:1.6}
.nav-cta{display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:var(--r-btn);background:var(--brand);color:var(--bg-0);font-size:14px;font-weight:700;transition:background .18s ease,transform .18s ease}
.nav-cta:hover{background:var(--brand-600);transform:translateY(-1px)}
.nav-cta:active{background:var(--brand-700);transform:translateY(0)}
.nav-toggle{position:absolute;opacity:0;pointer-events:none}
.burger{margin-left:auto;display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;padding:0 10px;border:1px solid var(--line);border-radius:var(--r-btn);cursor:pointer}
.burger span{display:block;height:2px;background:var(--tx-2);border-radius:2px}
@media(min-width:1024px){.burger{display:none}}
.nav-drawer{display:none;border-top:1px solid var(--line);background:var(--bg-1);padding:12px 20px 24px;max-height:calc(100vh - 65px);overflow-y:auto}
.nav-toggle:checked ~ .nav-drawer{display:block}
@media(min-width:1024px){.nav-drawer{display:none !important}}
.drawer-link{display:flex;align-items:center;min-height:44px;padding:0 12px;border-radius:8px;font-size:15px;font-weight:600;color:var(--tx-2)}
.drawer-link:hover,.drawer-link.is-active{background:var(--bg-2);color:var(--tx-1)}
.drawer-group{margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}
.drawer-group-title{font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--tx-3);padding:0 12px;margin-bottom:8px}
.drawer-sub{display:block;padding:10px 12px;border-radius:8px;font-size:14px;color:var(--tx-2)}
.drawer-sub:hover{background:var(--bg-2);color:var(--tx-1)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 20px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:700;cursor:pointer;transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease}
@media(min-width:768px){.btn{height:44px}}
.btn-primary{background:var(--brand);color:var(--bg-0)}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-1px)}
.btn-primary:active{background:var(--brand-700);transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--tx-1)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-link{display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-size:14px;font-weight:600;border-bottom:1px solid transparent;transition:border-color .18s ease}
.btn-link:hover{border-bottom-color:var(--accent)}
.arrow{display:inline-block;transition:transform .18s ease}
.btn-link:hover .arrow,.card-link:hover .arrow{transform:translateX(4px)}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-badge);font-size:12px;font-weight:600;letter-spacing:.02em;background:var(--bg-2);color:var(--accent)}
.badge-live{background:var(--brand);color:var(--bg-0)}
.badge-soon{background:var(--warn);color:var(--bg-0)}
.badge-done{background:rgba(110,122,135,.25);color:var(--tx-2)}
.dot{width:6px;height:6px;border-radius:50%;background:currentColor;animation:pulse 2s infinite}

/* ---------- hero ---------- */
.hero{position:relative;border-bottom:1px solid var(--line);background:var(--bg-0)}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:40px 0 48px}
@media(min-width:1024px){.hero-grid{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:center;padding:64px 0 72px}}
.hero-media{position:relative;border-radius:12px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1)}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--bg-1)}
.hero-media::after{content:"";position:absolute;inset:auto 0 0 0;height:45%;background:linear-gradient(180deg,rgba(11,14,18,0) 0%,rgba(11,14,18,.78) 100%);pointer-events:none}
.hero-media-badge{position:absolute;left:12px;top:12px;z-index:2}
.hero-media-corner{position:absolute;right:0;bottom:0;z-index:2;padding:8px 14px;background:rgba(11,14,18,.82);border-top-left-radius:12px;border-top:1px solid var(--line);border-left:1px solid var(--line);font-size:12px;color:var(--tx-2);font-variant-numeric:tabular-nums}
.hero-cut::before{content:"";position:absolute;right:-1px;bottom:-1px;width:22px;height:22px;background:var(--bg-0);clip-path:polygon(100% 0,100% 100%,0 100%)}
.hero h1{font-size:34px;line-height:1.22;font-weight:700;letter-spacing:.005em;margin-bottom:16px}
@media(min-width:768px){.hero h1{font-size:40px}}
@media(min-width:1024px){.hero h1{font-size:44px}}
.hero-sub{font-size:16px;color:var(--tx-2);max-width:560px;margin-bottom:24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px}
.hero-points{display:grid;grid-template-columns:1fr;gap:10px;padding-top:20px;border-top:1px solid var(--line)}
@media(min-width:640px){.hero-points{grid-template-columns:1fr 1fr}}
.hero-point{display:flex;gap:10px;font-size:14px;color:var(--tx-2)}
.hero-point b{color:var(--tx-1);font-weight:600}
.tick{color:var(--accent);font-weight:700}

/* ---------- countdown ---------- */
.countdown{border-bottom:1px solid var(--line);background:var(--bg-1)}
.countdown-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding:20px 0}
.cd-cell{text-align:center;border-right:1px solid var(--line)}
.cd-cell:last-child{border-right:0}
.cd-num{font-size:24px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.2}
@media(min-width:768px){.cd-num{font-size:38px}}
@media(min-width:1024px){.cd-num{font-size:44px}}
.cd-label{font-size:12px;color:var(--tx-3);margin-top:4px}
.cd-note{padding:0 0 16px;font-size:13px;color:var(--tx-3)}

/* ---------- highlights list ---------- */
.hl-list{border-top:1px solid var(--line)}
.hl-item{display:grid;grid-template-columns:44px 1fr auto;gap:16px;align-items:center;min-height:64px;padding:14px 12px;border-bottom:1px solid var(--line);border-left:2px solid transparent;transition:background .18s ease,border-color .18s ease}
.hl-item:hover{background:var(--bg-2);border-left-color:var(--accent)}
.hl-num{font-size:15px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.hl-title{font-size:16px;font-weight:600}
.hl-desc{font-size:14px;color:var(--tx-2);margin-top:4px}
.hl-tag{align-self:center}
@media(max-width:640px){
  .hl-item{grid-template-columns:36px 1fr}
  .hl-tag{grid-column:2;justify-self:start;margin-top:8px}
}

/* ---------- subscribe ---------- */
.sub-panel{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1)}
@media(min-width:768px){.sub-panel{padding:32px}}
.sub-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:1024px){.sub-grid{grid-template-columns:minmax(0,5fr) minmax(0,7fr);align-items:center;gap:40px}}
.sub-form{display:flex;flex-direction:column;gap:12px}
@media(min-width:768px){.sub-form{flex-direction:row;flex-wrap:nowrap}}
.field{height:44px;flex:1 1 auto;min-width:0;padding:0 14px;background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-input);color:var(--tx-1);transition:border-color .18s ease,box-shadow .18s ease}
.sub-panel .field{background:var(--bg-0)}
.field::placeholder{color:var(--tx-3)}
.field:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(18,224,196,.16)}
.privacy{font-size:12px;color:var(--tx-3);margin-top:12px}
.sub-notes{display:grid;grid-template-columns:1fr;gap:8px;margin-top:20px}
@media(min-width:640px){.sub-notes{grid-template-columns:repeat(3,1fr)}}
.sub-note{font-size:12px;color:var(--tx-2);padding-left:14px;position:relative}
.sub-note::before{content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ---------- entry cards ---------- */
.entry-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:1024px){.entry-grid{grid-template-columns:repeat(12,1fr);gap:24px}}
.entry-card{position:relative;display:flex;flex-direction:column;gap:12px;padding:20px;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease}
.entry-card:hover{border-color:rgba(18,224,196,.4);transform:translateY(-2px);box-shadow:var(--sh-2)}
.entry-card.is-accent{border-color:rgba(18,224,196,.55)}
.entry-card.is-accent::before{content:"";position:absolute;left:0;top:20px;bottom:20px;width:2px;background:var(--accent);border-radius:2px}
.entry-idx{font-size:12px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.entry-title{font-size:18px;font-weight:700}
.entry-desc{font-size:14px;color:var(--tx-2)}
.entry-meta{font-size:12px;color:var(--tx-3);margin-top:auto;font-variant-numeric:tabular-nums}
.col-5{grid-column:span 5}
.col-7{grid-column:span 7}
.col-12{grid-column:span 12}
@media(max-width:1023px){.col-5,.col-7,.col-12{grid-column:auto}}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 0}
@media(min-width:1024px){.stats{grid-template-columns:repeat(4,1fr);gap:24px}}
.stat-num{font-size:30px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.2}
.stat-label{font-size:13px;color:var(--tx-2);margin-top:6px}
.stat-item{padding-left:16px;border-left:1px solid var(--line)}

/* ---------- cards (news) ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.card{display:flex;flex-direction:column;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease}
.card:hover{border-color:rgba(18,224,196,.4);transform:translateY(-2px);box-shadow:var(--sh-2)}
.card-cover{position:relative;background:var(--bg-1)}
.card-cover img{width:100%;aspect-ratio:3/2;object-fit:cover}
.card-cover .badge{position:absolute;left:12px;top:12px}
.card-body{display:flex;flex-direction:column;gap:10px;padding:18px;flex:1 1 auto}
.card-title{font-size:16px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{font-size:14px;color:var(--tx-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line)}
.card-date{font-size:13px;color:var(--tx-3);font-variant-numeric:tabular-nums}
.card-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--accent)}
.empty-box{border:1px dashed var(--line);border-radius:var(--r-card);padding:48px 24px;text-align:center;color:var(--tx-2);font-size:15px}
.empty-box .btn{margin-top:16px}

/* ---------- faq ---------- */
.faq{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--bg-1)}
.faq details{border-bottom:1px solid var(--line)}
.faq details:last-child{border-bottom:0}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:48px;padding:14px 20px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;transition:background .18s ease}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{background:var(--bg-2)}
.faq summary::after{content:"+";color:var(--accent);font-size:20px;font-weight:700;line-height:1}
.faq details[open] summary::after{content:"−"}
.faq-answer{padding:0 20px 16px;color:var(--tx-2);font-size:15px}

/* ---------- cta ---------- */
.cta-band{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;display:flex;flex-direction:column;gap:16px;align-items:flex-start}
@media(min-width:768px){.cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:28px 32px;gap:24px}}
.cta-title{font-size:22px;font-weight:700;line-height:1.35}
@media(min-width:1024px){.cta-title{font-size:26px}}
.cta-desc{font-size:14px;color:var(--tx-2);margin-top:6px}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);margin-top:0}
.footer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;padding:48px 0 32px}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.3fr 1fr 1fr 1fr}}
.footer-title{font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--tx-3);margin-bottom:14px}
.footer-link{display:block;font-size:14px;color:var(--tx-2);padding:5px 0;transition:color .18s ease}
.footer-link:hover{color:var(--accent)}
.footer-desc{font-size:14px;color:var(--tx-2);max-width:320px;margin-top:12px}
.footer-bottom{border-top:1px solid var(--line);padding:18px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--tx-3)}

/* roulang page: article */
:root{
    --bg-0:#0B0E12;
    --bg-1:#12161C;
    --bg-2:#1A2028;
    --line:#262E38;
    --brand:#FF5A1F;
    --brand-600:#FF7A3D;
    --brand-700:#E04A12;
    --accent:#12E0C4;
    --warn:#FFC53D;
    --tx-1:#EEF2F6;
    --tx-2:#A7B2BE;
    --tx-3:#6E7A87;
    --ok:#35D07F;
    --err:#FF4D5E;
    --r-card:14px;
    --r-btn:10px;
    --r-badge:6px;
    --r-cover:12px;
    --sh-card:0 8px 24px rgba(0,0,0,.35);
    --sh-hover:0 14px 32px rgba(0,0,0,.5);
    --sp-section:48px;
  }
  @media (min-width:768px){ :root{ --sp-section:64px; } }
  @media (min-width:1024px){ :root{ --sp-section:80px; } }

  *,*::before,*::after{ box-sizing:border-box; }
  html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }

  body.article-page{
    margin:0;
    background:var(--bg-0);
    color:var(--tx-1);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
    font-size:16px;
    line-height:1.75;
    letter-spacing:.01em;
  }
  body.article-page img{ max-width:100%; height:auto; display:block; }
  body.article-page a{ color:inherit; text-decoration:none; }
  body.article-page button{ font:inherit; color:inherit; background:none; border:0; }
  body.article-page input{ font:inherit; }
  body.article-page h1,body.article-page h2,body.article-page h3,body.article-page p{ margin:0; }
  body.article-page ul,body.article-page ol{ margin:0; padding:0; list-style:none; }

  a:focus-visible,button:focus-visible,input:focus-visible,label:focus-visible{
    outline:2px solid var(--accent);
    outline-offset:2px;
    border-radius:6px;
  }

  .container{ width:100%; max-width:1200px; margin:0 auto; padding:0 20px; }
  @media (min-width:1024px){ .container{ padding:0 32px; } }

  .section{ padding-top:var(--sp-section); }
  .section-title{ font-size:26px; line-height:1.3; font-weight:700; letter-spacing:-.01em; }
  @media (min-width:1024px){ .section-title{ font-size:28px; } }
  .section-head{ display:flex; align-items:flex-end; justify-content:space-between; gap:16px; margin-bottom:24px; }
  .section-sub{ font-size:14px; color:var(--tx-2); margin-top:8px; }

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky; top:0; z-index:80;
    background:var(--bg-1);
    border-bottom:1px solid var(--line);
  }
  .nav-inner{
    max-width:1200px; margin:0 auto; padding:0 20px;
    height:64px; display:flex; align-items:center; gap:28px;
  }
  @media (min-width:1024px){ .nav-inner{ padding:0 32px; } }

  .nav-toggle{ position:absolute; opacity:0; width:0; height:0; pointer-events:none; }

  .logo{ display:inline-flex; align-items:center; gap:10px; flex:0 0 auto; }
  .logo-mark{
    width:22px; height:22px; display:inline-block; position:relative;
    background:linear-gradient(135deg,var(--brand),var(--brand-700));
    clip-path:polygon(0 0,100% 0,100% 68%,68% 100%,0 100%);
  }
  .logo-mark::after{
    content:""; position:absolute; right:3px; bottom:3px;
    width:6px; height:6px; border-radius:50%; background:var(--accent);
    animation:pulse 2s ease-in-out infinite;
  }
  @keyframes pulse{
    0%,100%{ opacity:1; transform:scale(1); }
    50%{ opacity:.35; transform:scale(.82); }
  }
  .logo-text{ font-size:17px; font-weight:700; letter-spacing:.02em; color:var(--tx-1); }

  .desktop-nav{ display:flex; align-items:center; gap:22px; }
  .nav-link{
    position:relative; display:inline-block;
    font-size:15px; font-weight:600; color:var(--tx-2);
    padding:22px 0; transition:color .18s ease;
  }
  .nav-link:hover{ color:var(--tx-1); }
  .nav-link.is-active{ color:var(--tx-1); }
  .nav-link.is-active::after{
    content:""; position:absolute; left:0; right:0; bottom:14px;
    height:2px; background:var(--accent); border-radius:2px;
  }

  .nav-right{ margin-left:auto; display:flex; align-items:center; gap:12px; }
  .mega-wrap{ position:relative; }
  .mega-trigger{
    display:inline-flex; align-items:center; gap:7px;
    height:38px; padding:0 14px;
    background:var(--bg-2); border:1px solid var(--line); border-radius:var(--r-btn);
    color:var(--tx-2); font-size:14px; font-weight:600; cursor:pointer;
    transition:color .18s ease, border-color .18s ease, background .18s ease;
  }
  .mega-trigger:hover{ color:var(--tx-1); border-color:rgba(18,224,196,.55); background:#1F2731; }
  .mega-caret{
    width:0; height:0; border-left:4px solid transparent;
    border-right:4px solid transparent; border-top:5px solid currentColor;
  }
  .mega-panel{
    position:absolute; right:0; top:calc(100% + 12px);
    width:580px; max-width:90vw;
    background:var(--bg-1); border:1px solid var(--line); border-radius:var(--r-card);
    padding:20px; display:grid; grid-template-columns:1fr 1.1fr; gap:20px;
    box-shadow:var(--sh-hover);
    opacity:0; visibility:hidden; transform:translateY(-6px);
    transition:opacity .12s ease, transform .12s ease, visibility .12s;
  }
  .mega-wrap:hover .mega-panel,
  .mega-wrap:focus-within .mega-panel{ opacity:1; visibility:visible; transform:translateY(0); }
  .mega-col-title{
    font-size:12px; font-weight:600; letter-spacing:.02em;
    color:var(--tx-3); text-transform:none; margin-bottom:10px;
  }
  .mega-list{ display:flex; flex-direction:column; gap:2px; }
  .mega-item{
    display:flex; align-items:center; gap:10px;
    padding:8px 10px; border-radius:8px;
    font-size:14px; color:var(--tx-2);
    transition:background .16s ease, color .16s ease;
  }
  .mega-item:hover{ background:var(--bg-2); color:var(--tx-1); }
  .mega-num{
    font-size:12px; font-weight:700; color:var(--brand);
    font-variant-numeric:tabular-nums;
  }
  .mega-mini{
    display:block; padding:8px 10px; border-radius:8px;
    transition:background .16s ease;
  }
  .mega-mini:hover{ background:var(--bg-2); }
  .mega-mini-t{
    display:block; font-size:14px; color:var(--tx-1);
    white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
  }
  .mega-mini-d{ display:block; font-size:12px; color:var(--tx-3); margin-top:2px; font-variant-numeric:tabular-nums; }

  .nav-burger{
    display:none; width:42px; height:42px; margin-left:auto;
    align-items:center; justify-content:center; flex-direction:column; gap:5px;
    border:1px solid var(--line); border-radius:var(--r-btn);
    background:var(--bg-2); cursor:pointer;
  }
  .nav-burger span{ display:block; width:18px; height:2px; background:var(--tx-2); border-radius:2px; }

  .drawer-extra{ display:none; }

  @media (max-width:1023px){
    .nav-inner{ height:56px; gap:16px; padding:0 16px; }
    .nav-burger{ display:inline-flex; }
    .nav-right{ display:none; }
    .desktop-nav{
      position:fixed; top:56px; left:0; right:0; bottom:0;
      background:var(--bg-1); border-top:1px solid var(--line);
      flex-direction:column; align-items:stretch; gap:0;
      padding:8px 16px 32px; overflow-y:auto;
      transform:translateX(-105%); transition:transform .22s ease;
    }
    .nav-toggle:checked ~ .desktop-nav{ transform:translateX(0); }
    .nav-link{
      padding:0 4px; line-height:44px; font-size:16px;
      border-bottom:1px solid var(--line);
    }
    .nav-link.is-active{ color:var(--accent); }
    .nav-link.is-active::after{ display:none; }
    .drawer-extra{ display:block; margin-top:20px; }
    .drawer-label{ font-size:12px; font-weight:600; color:var(--tx-3); margin-bottom:8px; }
    .drawer-link{
      display:block; line-height:44px; font-size:15px; color:var(--tx-2);
      border-bottom:1px solid var(--line);
    }
    .drawer-link:hover{ color:var(--tx-1); }
  }

  /* ---------- 按钮 ---------- */
  .btn-primary{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    height:48px; padding:0 20px;
    background:var(--brand); color:#0B0E12; font-size:15px; font-weight:700;
    border-radius:var(--r-btn); cursor:pointer;
    transition:background .18s ease, transform .18s ease, box-shadow .18s ease;
  }
  .btn-primary:hover{ background:var(--brand-600); transform:translateY(-1px); box-shadow:var(--sh-card); }
  .btn-primary:active{ background:var(--brand-700); transform:translateY(0); }
  @media (min-width:768px){ .btn-primary{ height:44px; } }

  .btn-secondary{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    height:44px; padding:0 20px;
    background:transparent; border:1px solid var(--line); border-radius:var(--r-btn);
    color:var(--tx-1); font-size:15px; font-weight:600; cursor:pointer;
    transition:border-color .18s ease, color .18s ease, background .18s ease;
  }
  .btn-secondary:hover{ border-color:var(--accent); color:var(--accent); }
  .btn-secondary:active{ background:rgba(18,224,196,.08); }

  .btn-text{
    display:inline-flex; align-items:center; gap:6px;
    color:var(--accent); font-size:14px; font-weight:600;
  }
  .btn-text:hover{ text-decoration:underline; text-underline-offset:4px; }

  /* ---------- 徽章 ---------- */
  .badge-cat{
    display:inline-flex; align-items:center;
    padding:3px 10px; border-radius:var(--r-badge);
    background:rgba(18,224,196,.12); color:var(--accent);
    font-size:12px; font-weight:600; letter-spacing:.02em;
  }
  .badge-time{
    display:inline-flex; align-items:center; gap:6px;
    padding:3px 10px; border-radius:var(--r-badge);
    background:var(--bg-2); color:var(--tx-3); font-size:12px; font-weight:600;
  }
  .badge-time i{
    width:6px; height:6px; border-radius:50%; background:var(--brand);
    display:inline-block; animation:pulse 2s ease-in-out infinite;
  }

  /* ---------- 文章头部 ---------- */
  .article-hero{
    padding:32px 0 8px;
    background-color:var(--bg-0);
    background-image:radial-gradient(rgba(255,255,255,.055) 1px, transparent 1px);
    background-size:10px 10px;
  }
  @media (min-width:1024px){ .article-hero{ padding:48px 0 12px; } }

  .crumbs{
    display:flex; flex-wrap:wrap; align-items:center; gap:8px;
    font-size:13px; color:var(--tx-2); margin-bottom:12px;
  }
  .crumbs a{ color:var(--tx-2); transition:color .16s ease; }
  .crumbs a:hover{ color:var(--accent); }
  .crumb-sep{ color:var(--tx-3); }
  .crumb-current{
    color:var(--accent); max-width:60vw;
    white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
  }
  @media (min-width:768px){ .crumb-current{ max-width:none; } }

  .article-title{
    font-size:clamp(28px,4.4vw,42px); line-height:1.22; font-weight:700;
    letter-spacing:-.01em; max-width:900px;
  }

  .meta-bar{
    display:flex; flex-wrap:wrap; align-items:center; gap:12px;
    margin-top:16px; font-size:13px; color:var(--tx-3);
  }
  .meta-dot{ width:4px; height:4px; border-radius:50%; background:var(--line); }

  .article-cover{
    margin-top:24px; border-radius:var(--r-cover); overflow:hidden;
    border:1px solid var(--line); background:var(--bg-1);
  }
  .article-cover img{ width:100%; aspect-ratio:16/9; object-fit:cover; }

  /* ---------- 正文 ---------- */
  .article-wrap{ padding-top:32px; }
  @media (min-width:1024px){ .article-wrap{ padding-top:40px; } }

  .article-body{
    max-width:800px; margin:0 auto;
    background:var(--bg-1); border:1px solid var(--line);
    border-radius:var(--r-card); padding:24px 20px;
    box-shadow:var(--sh-card);
  }
  @media (min-width:768px){ .article-body{ padding:36px 40px; } }
  @media (min-width:1024px){ .article-body{ padding:40px 48px; } }

  .article-content{ font-size:16px; line-height:1.8; color:var(--tx-1); overflow-wrap:anywhere; }
  @media (min-width:768px){ .article-content{ font-size:17px; line-height:1.9; } }
  .article-content p{ margin:0 0 1.25em; }
  .article-content h2{
    font-size:23px; line-height:1.35; font-weight:700;
    margin:32px 0 12px; padding-left:14px;
    border-left:3px solid var(--brand); color:var(--tx-1);
  }
  @media (min-width:768px){ .article-content h2{ font-size:26px; } }
  .article-content h3{ font-size:19px; line-height:1.4; font-weight:600; margin:24px 0 10px; color:var(--tx-1); }
  .article-content ul,.article-content ol{ margin:0 0 1.25em; padding-left:1.5em; }
  .article-content ul{ list-style:disc; }
  .article-content ol{ list-style:decimal; }
  .article-content li{ margin:.4em 0; color:var(--tx-2); }
  .article-content blockquote{
    margin:20px 0; padding:16px 20px;
    background:var(--bg-0); border-left:3px solid var(--accent);
    border-radius:0 var(--r-cover) var(--r-cover) 0; color:var(--tx-2);
  }
  .article-content img{ margin:20px auto; border-radius:10px; }
  .article-content figure{ margin:20px 0; }
  .article-content figcaption{ text-align:center; font-size:13px; color:var(--tx-3); margin-top:8px; }
  .article-content a{ color:var(--accent); border-bottom:1px solid rgba(18,224,196,.35); }
  .article-content a:hover{ border-bottom-color:var(--accent); }
  .article-content strong{ color:var(--tx-1); font-weight:700; }
  .article-content hr{ border:0; border-top:1px solid var(--line); margin:28px 0; }
  .article-content table{ width:100%; border-collapse:collapse; font-size:15px; margin:20px 0; display:block; overflow-x:auto; }
  .article-content th,.article-content td{ border-bottom:1px solid var(--line); padding:10px 12px; text-align:left; white-space:nowrap; }
  .article-content th{ background:var(--bg-0); color:var(--tx-1); font-weight:600; }
  .article-content td{ color:var(--tx-2); }
  .article-content code{
    background:var(--bg-2); border-radius:6px; padding:2px 6px;
    font-size:14px; color:var(--accent); font-family:ui-monospace,Menlo,Consolas,monospace;
  }

  .empty-state{
    border:1px dashed var(--line); border-radius:var(--r-card);
    padding:48px 24px; text-align:center; background:var(--bg-0);
  }
  .empty-title{ font-size:20px; font-weight:700; color:var(--tx-1); }
  .empty-desc{ font-size:14px; color:var(--tx-2); margin:10px auto 20px; max-width:460px; }

  .article-foot{
    display:flex; flex-wrap:wrap; gap:12px;
    margin-top:32px; padding-top:24px; border-top:1px solid var(--line);
  }

  /* ---------- 相关推荐 ---------- */
  .rel-grid{ display:grid; grid-template-columns:1fr; gap:16px; }
  @media (min-width:768px){ .rel-grid{ grid-template-columns:repeat(3,1fr); gap:24px; } }
  .rel-card{
    display:flex; flex-direction:column; overflow:hidden;
    background:var(--bg-2); border:1px solid var(--line); border-radius:var(--r-card);
    transition:border-color .2s ease, transform .2s ease, box-shadow .2s ease;
  }
  .rel-card:hover{
    border-color:rgba(18,224,196,.4);
    transform:translateY(-2px);
    box-shadow:var(--sh-hover);
  }
  .rel-card img{ width:100%; aspect-ratio:3/2; object-fit:cover; background:var(--bg-1); }
  .rel-body{ padding:16px 18px 20px; display:flex; flex-direction:column; gap:10px; flex:1; }
  .rel-body h3{ font-size:17px; line-height:1.4; font-weight:600; color:var(--tx-1); }
  .rel-body p{ font-size:14px; line-height:1.6; color:var(--tx-2); }
  .rel-foot{
    margin-top:auto; display:flex; align-items:center; justify-content:space-between;
    font-size:13px; color:var(--tx-3); font-variant-numeric:tabular-nums;
  }
  .rel-arrow{ color:var(--accent); font-weight:700; transition:transform .2s ease; }
  .rel-card:hover .rel-arrow{ transform:translateX(3px); }

  /* ---------- CTA 横条 ---------- */
  .cta-band{
    display:flex; flex-direction:column; gap:20px;
    padding:28px 24px;
    background-color:var(--bg-1);
    background-image:radial-gradient(rgba(255,255,255,.055) 1px, transparent 1px);
    background-size:10px 10px;
    border:1px solid var(--line); border-radius:var(--r-card);
  }
  @media (min-width:768px){
    .cta-band{ flex-direction:row; align-items:center; justify-content:space-between; padding:32px 36px; }
  }
  .cta-title{ font-size:22px; line-height:1.35; font-weight:700; color:var(--tx-1); }
  .cta-desc{ font-size:14px; color:var(--tx-2); margin-top:8px; }

  /* ---------- 页脚 ---------- */
  .site-footer{
    margin-top:var(--sp-section);
    background:var(--bg-1); border-top:1px solid var(--line);
    padding:48px 0 0;
  }
  .footer-grid{ display:grid; grid-template-columns:1fr 1fr; gap:32px; }
  @media (min-width:1024px){ .footer-grid{ grid-template-columns:1.4fr 1fr 1fr 1.2fr; } }
  .footer-title{ font-size:15px; font-weight:700; color:var(--tx-1); margin-bottom:12px; }
  .footer-desc{ font-size:14px; line-height:1.7; color:var(--tx-2); }
  .footer-link{
    display:block; font-size:14px; color:var(--tx-2);
    line-height:2; transition:color .16s ease;
  }
  .footer-link:hover{ color:var(--accent); }
  .footer-bottom{
    margin-top:40px; padding:18px 0;
    border-top:1px solid var(--line);
    display:flex; flex-wrap:wrap; gap:10px; justify-content:space-between;
    font-size:13px; color:var(--tx-3);
  }

/* roulang page: category1 */
:root{
  --bg-0:#0B0E12; --bg-1:#12161C; --bg-2:#1A2028; --line:#262E38;
  --brand:#FF5A1F; --brand-600:#FF7A3D; --brand-700:#E04A12;
  --accent:#12E0C4; --warn:#FFC53D; --ok:#35D07F; --err:#FF4D5E;
  --tx-1:#EEF2F6; --tx-2:#A7B2BE; --tx-3:#6E7A87;
  --r-card:14px; --r-btn:10px; --r-badge:6px; --r-img:12px;
  --sh-1:0 8px 24px rgba(0,0,0,.35); --sh-2:0 14px 32px rgba(0,0,0,.5);
  --gap-card:24px; --gap-tight:16px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg-0); color:var(--tx-1);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px; line-height:1.75; letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%; display:block}
a{color:inherit; text-decoration:none}
button,input,select,textarea{font:inherit; color:inherit}
button{background:none; border:0; cursor:pointer}
h1,h2,h3,h4,p,figure{margin:0}
ul{margin:0; padding:0; list-style:none}
:focus-visible{outline:2px solid var(--accent); outline-offset:2px; border-radius:4px}
.container{width:100%; max-width:1200px; margin:0 auto; padding:0 20px}
@media (min-width:1024px){ .container{padding:0 32px} }
.section-gap{display:block}
.block{padding:48px 0}
@media (min-width:768px){ .block{padding:64px 0} }
@media (min-width:1024px){ .block{padding:80px 0} }

/* ---------- header / nav ---------- */
.site-header{position:sticky; top:0; z-index:60; background:var(--bg-1); border-bottom:1px solid var(--line)}
.nav-inner{max-width:1200px; margin:0 auto; padding:0 20px; height:64px; display:flex; align-items:center; gap:22px}
@media (min-width:1024px){ .nav-inner{padding:0 32px; gap:28px} }
.logo{display:flex; align-items:center; gap:10px; font-weight:700; font-size:17px; color:var(--tx-1); white-space:nowrap}
.logo-mark{position:relative; width:22px; height:22px; border-radius:4px; background:linear-gradient(135deg,var(--brand) 0%,var(--brand-700) 100%); clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%); flex:none}
.logo-mark::after{content:""; position:absolute; right:-5px; bottom:-4px; width:6px; height:6px; border-radius:50%; background:var(--accent); box-shadow:0 0 0 2px var(--bg-1); animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1; transform:scale(1)} 50%{opacity:.45; transform:scale(.82)}}
.desktop-nav{display:none}
@media (min-width:1024px){ .desktop-nav{display:flex; align-items:center; gap:22px} }
.nav-link{font-size:15px; font-weight:600; color:var(--tx-2); padding:8px 2px; border-bottom:2px solid transparent; transition:color .15s ease, border-color .15s ease}
.nav-link:hover{color:var(--tx-1)}
.nav-link.is-active{color:var(--tx-1); border-bottom-color:var(--accent)}
.nav-right{margin-left:auto; display:flex; align-items:center; gap:12px}
.mega-wrap{position:relative; display:none}
@media (min-width:1024px){ .mega-wrap{display:block} }
.mega-trigger{display:inline-flex; align-items:center; gap:8px; height:40px; padding:0 16px; border:1px solid var(--line); border-radius:var(--r-btn); background:var(--bg-2); color:var(--tx-1); font-size:14px; font-weight:600; transition:border-color .15s ease, color .15s ease}
.mega-trigger:hover{border-color:var(--accent); color:var(--accent)}
.mega-caret{width:0; height:0; border-left:4px solid transparent; border-right:4px solid transparent; border-top:5px solid currentColor}
.mega-panel{position:absolute; right:0; top:calc(100% + 12px); width:820px; display:grid; grid-template-columns:1.15fr 1fr 1fr; gap:22px; background:var(--bg-1); border:1px solid var(--line); border-radius:var(--r-card); padding:22px; box-shadow:var(--sh-2); opacity:0; visibility:hidden; transform:translateY(-6px); transition:opacity .12s ease, transform .12s ease, visibility .12s ease; z-index:70}
.mega-wrap:hover .mega-panel, .mega-wrap:focus-within .mega-panel{opacity:1; visibility:visible; transform:translateY(0)}
.mega-col-title{margin:0 0 12px; font-size:12px; font-weight:700; letter-spacing:.08em; color:var(--tx-3)}
.mega-list{display:flex; flex-direction:column; gap:4px}
.mega-item{display:flex; align-items:center; gap:10px; padding:9px 10px; border-radius:8px; font-size:14px; color:var(--tx-2); transition:background .15s ease, color .15s ease}
.mega-item:hover{background:var(--bg-2); color:var(--tx-1)}
.mega-num{font-size:12px; font-weight:700; color:var(--brand); font-variant-numeric:tabular-nums}
.mega-mini{display:flex; flex-direction:column; gap:2px; padding:9px 10px; border-radius:8px; transition:background .15s ease}
.mega-mini:hover{background:var(--bg-2)}
.mega-mini-t{font-size:14px; color:var(--tx-1); overflow:hidden; white-space:nowrap; text-overflow:ellipsis}
.mega-mini-d{font-size:12px; color:var(--tx-3); font-variant-numeric:tabular-nums}
.mega-entry{display:flex; gap:12px; align-items:flex-start; padding:12px; border:1px solid var(--line); border-radius:10px; background:var(--bg-2); transition:border-color .15s ease, transform .15s ease}
.mega-entry:hover{border-color:rgba(18,224,196,.45); transform:translateY(-2px)}
.mega-entry-ic{width:26px; height:26px; flex:none; border-radius:6px; background:linear-gradient(135deg,var(--brand),var(--brand-700)); clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%)}
.mega-entry-t{font-size:14px; font-weight:600; color:var(--tx-1)}
.mega-entry-d{font-size:12px; color:var(--tx-3); line-height:1.5}
.burger-btn{display:inline-flex; flex-direction:column; justify-content:center; gap:5px; width:44px; height:44px; padding:0 11px; border:1px solid var(--line); border-radius:var(--r-btn); background:var(--bg-2)}
@media (min-width:1024px){ .burger-btn{display:none} }
.burger-btn span{display:block; height:2px; background:var(--tx-1); border-radius:2px; transition:transform .2s ease, opacity .2s ease}
.nav-toggle{position:absolute; opacity:0; width:1px; height:1px; pointer-events:none}
#navToggle:checked ~ .nav-right .burger-btn span:nth-child(1){transform:translateY(7px) rotate(45deg)}
#navToggle:checked ~ .nav-right .burger-btn span:nth-child(2){opacity:0}
#navToggle:checked ~ .nav-right .burger-btn span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-drawer{position:fixed; top:64px; left:0; right:0; max-height:calc(100vh - 64px); overflow-y:auto; background:var(--bg-1); border-bottom:1px solid var(--line); padding:16px 20px 24px; opacity:0; visibility:hidden; transform:translateY(-8px); transition:opacity .18s ease, transform .18s ease, visibility .18s ease; z-index:55}
#navToggle:checked ~ .mobile-drawer{opacity:1; visibility:visible; transform:translateY(0)}
@media (min-width:1024px){ .mobile-drawer{display:none} }
.drawer-link{display:flex; align-items:center; min-height:44px; font-size:15px; font-weight:600; color:var(--tx-2); border-bottom:1px solid var(--line)}
.drawer-link.is-active{color:var(--tx-1)}
.drawer-link.is-active::before{content:""; width:4px; height:16px; margin-right:10px; border-radius:2px; background:var(--accent)}
.drawer-group{margin-top:18px}
.drawer-group-title{font-size:12px; font-weight:700; letter-spacing:.08em; color:var(--tx-3); margin-bottom:8px}
.drawer-mini{display:flex; justify-content:space-between; gap:10px; padding:9px 0; font-size:14px; color:var(--tx-2); border-bottom:1px solid rgba(38,46,56,.6)}
.drawer-mini span:last-child{color:var(--tx-3); font-size:12px; font-variant-numeric:tabular-nums}

/* ---------- breadcrumb ---------- */
.breadcrumb{display:flex; flex-wrap:wrap; align-items:center; gap:8px; font-size:13px; color:var(--tx-2)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:var(--tx-3)}
.breadcrumb .cur{color:var(--accent)}

/* ---------- hero (category1) ---------- */
.hero-cat{position:relative; padding:36px 0 8px; background-image:radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px); background-size:10px 10px; border-bottom:1px solid var(--line)}
@media (min-width:768px){ .hero-cat{padding:48px 0 12px} }
.hero-grid{display:grid; grid-template-columns:1fr; gap:28px; align-items:center}
@media (min-width:1024px){ .hero-grid{grid-template-columns:1.05fr .95fr; gap:44px} }
.hero-copy{display:flex; flex-direction:column; gap:16px}
.hero-h1{font-size:32px; line-height:1.2; font-weight:700; letter-spacing:-.01em}
@media (min-width:768px){ .hero-h1{font-size:38px} }
@media (min-width:1024px){ .hero-h1{font-size:42px} }
.hero-lead{font-size:16px; color:var(--tx-2); max-width:56ch}
.hero-actions{display:flex; flex-wrap:wrap; gap:12px}
.hero-media{position:relative}
.hero-media img{width:100%; aspect-ratio:16/9; object-fit:cover; border-radius:var(--r-img); border:1px solid var(--line); box-shadow:var(--sh-1); clip-path:polygon(0 0,100% 0,100% calc(100% - 26px),calc(100% - 26px) 100%,0 100%)}
.hero-media-tag{position:absolute; top:12px; left:12px; display:inline-flex; align-items:center; gap:7px; padding:5px 12px; border-radius:var(--r-badge); background:var(--brand); color:#0B0E12; font-size:12px; font-weight:700; letter-spacing:.02em}
.dot-live{width:6px; height:6px; border-radius:50%; background:#0B0E12; animation:pulse 2s infinite}
.stat-row{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px 16px; margin-top:6px; padding-top:18px; border-top:1px solid var(--line)}
@media (min-width:768px){ .stat-row{grid-template-columns:repeat(4,minmax(0,1fr))} }
.stat-v{font-size:24px; font-weight:700; color:var(--accent); font-variant-numeric:tabular-nums; line-height:1.2}
.stat-l{font-size:12px; color:var(--tx-3); letter-spacing:.02em}

/* ---------- layout with sticky sidebar ---------- */
.cat-layout{display:grid; grid-template-columns:1fr; gap:32px}
@media (min-width:1024px){ .cat-layout{grid-template-columns:minmax(0,8fr) minmax(0,4fr); gap:32px; align-items:start} }
.col-side{display:flex; flex-direction:column; gap:20px}
@media (min-width:1024px){ .col-side{position:sticky; top:88px} }

/* ---------- generic blocks ---------- */
.panel-block{margin-bottom:48px}
.panel-block:last-child{margin-bottom:0}
.block-title{font-size:26px; font-weight:700; line-height:1.3}
@media (min-width:768px){ .block-title{font-size:28px} }
.block-sub{margin-top:10px; font-size:15px; color:var(--tx-2); max-width:64ch}
.block-head{margin-bottom:24px}
.rule{height:1px; background:var(--line); border:0; margin:0}

/* ---------- focus list ---------- */
.focus-list{border:1px solid var(--line); border-radius:var(--r-card); overflow:hidden; background:var(--bg-1)}
.focus-item{display:grid; grid-template-columns:auto minmax(0,1fr) auto; gap:16px; align-items:center; padding:18px 20px; border-bottom:1px solid var(--line); transition:background .15s ease, box-shadow .15s ease}
.focus-item:last-child{border-bottom:0}
.focus-item:hover{background:var(--bg-2); box-shadow:inset 2px 0 0 var(--accent)}
.focus-num{font-size:20px; font-weight:700; color:var(--brand); font-variant-numeric:tabular-nums; min-width:34px}
.focus-t{font-size:17px; font-weight:600; color:var(--tx-1)}
.focus-d{margin-top:4px; font-size:14px; color:var(--tx-2); line-height:1.6}
.chip{display:inline-flex; align-items:center; padding:4px 10px; border-radius:var(--r-badge); background:var(--bg-2); border:1px solid var(--line); color:var(--accent); font-size:12px; font-weight:600; letter-spacing:.02em; white-space:nowrap}
.chip-warn{color:var(--warn)}
.chip-mute{color:var(--tx-3)}

/* ---------- steps ---------- */
.steps{display:grid; grid-template-columns:1fr; gap:16px}
@media (min-width:768px){ .steps{grid-template-columns:repeat(2,minmax(0,1fr))} }
.step{position:relative; padding:20px; border:1px solid var(--line); border-radius:var(--r-card); background:var(--bg-2); transition:border-color .15s ease, transform .15s ease, box-shadow .15s ease}
.step:hover{border-color:rgba(18,224,196,.4); transform:translateY(-2px); box-shadow:var(--sh-1)}
.step-index{display:inline-flex; align-items:center; justify-content:center; width:30px; height:30px; border-radius:8px; background:rgba(255,90,31,.14); color:var(--brand); font-weight:700; font-size:14px; font-variant-numeric:tabular-nums}
.step-t{margin-top:12px; font-size:17px; font-weight:600}
.step-d{margin-top:6px; font-size:14px; color:var(--tx-2); line-height:1.65}

/* ---------- cards ---------- */
.card-grid{display:grid; grid-template-columns:1fr; gap:16px}
@media (min-width:768px){ .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (min-width:1024px){ .card-grid{gap:var(--gap-card); grid-template-columns:repeat(3,minmax(0,1fr))} }
.card{display:flex; flex-direction:column; background:var(--bg-2); border:1px solid var(--line); border-radius:var(--r-card); overflow:hidden; transition:border-color .15s ease, transform .15s ease, box-shadow .15s ease}
.card:hover{border-color:rgba(18,224,196,.4); transform:translateY(-2px); box-shadow:var(--sh-2)}
.card-media{position:relative; aspect-ratio:3/2; background:var(--bg-1)}
.card-media img{width:100%; height:100%; object-fit:cover}
.card-body{padding:16px 18px 18px; display:flex; flex-direction:column; gap:10px; flex:1}
.card-t{font-size:16px; font-weight:600; line-height:1.45; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden}
.card-d{font-size:14px; color:var(--tx-2); line-height:1.6; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden}
.card-foot{margin-top:auto; display:flex; align-items:center; justify-content:space-between; font-size:13px; color:var(--tx-3); font-variant-numeric:tabular-nums}
.card-arrow{color:var(--accent); font-weight:600; transition:transform .15s ease}
.card:hover .card-arrow{transform:translateX(3px)}

/* ---------- buttons ---------- */
.btn{display:inline-flex; align-items:center; justify-content:center; gap:8px; min-height:44px; padding:0 20px; border-radius:var(--r-btn); border:1px solid transparent; font-size:15px; font-weight:600; transition:background .15s ease, color .15s ease, border-color .15s ease, transform .15s ease}
.btn-primary{background:var(--brand); color:#0B0E12}
.btn-primary:hover{background:var(--brand-600); transform:translateY(-1px)}
.btn-primary:active{background:var(--brand-700); transform:translateY(0)}
.btn-ghost{background:transparent; border-color:var(--line); color:var(--tx-1)}
.btn-ghost:hover{border-color:var(--accent); color:var(--accent)}
.btn-block{width:100%}
@media (max-width:519px){ .btn{width:100%} .hero-actions .btn{width:100%} }
.btn-link{display:inline-flex; align-items:center; gap:6px; color:var(--accent); font-size:15px; font-weight:600}
.btn-link:hover{text-decoration:underline; text-underline-offset:4px}

/* ---------- sidebar cards ---------- */
.side-card{background:var(--bg-1); border:1px solid var(--line); border-radius:var(--r-card); padding:20px}
.side-title{font-size:17px; font-weight:700}
.side-desc{margin-top:8px; font-size:14px; color:var(--tx-2); line-height:1.6}
.form{display:flex; flex-direction:column; gap:12px; margin-top:16px}
.field{display:flex; flex-direction:column; gap:6px}
.field label{font-size:13px; color:var(--tx-2)}
.input{height:44px; padding:0 14px; border-radius:var(--r-btn); border:1px solid var(--line); background:var(--bg-0); color:var(--tx-1); font-size:15px; width:100%; transition:border-color .15s ease, box-shadow .15s ease}
.input::placeholder{color:var(--tx-3)}
.input:focus{outline:none; border-color:var(--accent); box-shadow:0 0 0 2px rgba(18,224,196,.22)}
.form-note{font-size:12px; color:var(--tx-3); line-height:1.55}
.side-list{display:flex; flex-direction:column; margin-top:14px}
.side-link{display:flex; align-items:center; justify-content:space-between; gap:12px; padding:11px 0; border-bottom:1px solid var(--line); font-size:14px; color:var(--tx-2); transition:color .15s ease}
.side-link:last-child{border-bottom:0}
.side-link:hover{color:var(--accent)}
.side-link span:last-child{font-size:12px; color:var(--tx-3)}
.side-meta{display:flex; flex-direction:column; gap:8px; margin-top:14px; font-size:13px; color:var(--tx-3)}
.side-meta-row{display:flex; justify-content:space-between; gap:12px; padding-bottom:8px; border-bottom:1px solid rgba(38,46,56,.7)}
.side-meta-row:last-child{border-bottom:0; padding-bottom:0}

/* ---------- faq ---------- */
.faq{border:1px solid var(--line); border-radius:var(--r-card); background:var(--bg-1); overflow:hidden}
.faq details{border-bottom:1px solid var(--line)}
.faq details:last-child{border-bottom:0}
.faq summary{display:flex; align-items:center; justify-content:space-between; gap:16px; min-height:48px; padding:14px 20px; cursor:pointer; font-size:16px; font-weight:600; color:var(--tx-1); list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{background:var(--bg-2)}
.faq .sign{position:relative; width:16px; height:16px; flex:none}
.faq .sign::before,.faq .sign::after{content:""; position:absolute; background:var(--accent); border-radius:2px}
.faq .sign::before{top:7px; left:0; width:16px; height:2px}
.faq .sign::after{top:0; left:7px; width:2px; height:16px; transition:transform .18s ease, opacity .18s ease}
.faq details[open] .sign::after{transform:rotate(90deg); opacity:0}
.faq-answer{padding:0 20px 18px; font-size:15px; color:var(--tx-2); line-height:1.75}

/* ---------- CTA bar ---------- */
.cta-bar{background:var(--bg-1); background-image:radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px); background-size:10px 10px; border:1px solid var(--line); border-radius:var(--r-card); padding:28px 24px; display:flex; flex-direction:column; gap:18px}
@media (min-width:768px){ .cta-bar{flex-direction:row; align-items:center; justify-content:space-between; padding:32px} }
.cta-title{font-size:24px; font-weight:700; line-height:1.3}
.cta-desc{margin-top:8px; font-size:15px; color:var(--tx-2)}
.cta-actions{display:flex; flex-wrap:wrap; gap:12px}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-1); border-top:1px solid var(--line); padding:48px 0 24px; margin-top:64px}
.footer-grid{display:grid; grid-template-columns:1fr; gap:28px}
@media (min-width:640px){ .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:32px} }
.footer-title{font-size:15px; font-weight:700; color:var(--tx-1); margin-bottom:12px}
.footer-desc{font-size:14px; color:var(--tx-2); line-height:1.7; max-width:34ch}
.footer-link{display:block; padding:6px 0; font-size:14px; color:var(--tx-2); transition:color .15s ease}
.footer-link:hover{color:var(--accent)}
.footer-bottom{margin-top:32px; padding-top:18px; border-top:1px solid var(--line); display:flex; flex-wrap:wrap; gap:10px; justify-content:space-between; font-size:13px; color:var(--tx-3)}

/* roulang page: category2 */
:root{
  --bg-0:#0B0E12; --bg-1:#12161C; --bg-2:#1A2028; --line:#262E38;
  --brand:#FF5A1F; --brand-600:#FF7A3D; --brand-700:#E04A12;
  --accent:#12E0C4; --warn:#FFC53D;
  --tx-1:#EEF2F6; --tx-2:#A7B2BE; --tx-3:#6E7A87;
  --ok:#35D07F; --err:#FF4D5E;
  --r-card:14px; --r-btn:10px; --r-badge:6px; --r-input:10px; --r-img:12px;
  --sh-card:0 8px 24px rgba(0,0,0,.35);
  --sh-hover:0 14px 32px rgba(0,0,0,.5);
  --sp-section:80px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--tx-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,p{margin:0}
h1{font-size:clamp(28px,4.2vw,44px);line-height:1.2;font-weight:700;letter-spacing:.01em}
h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:700}
h3{font-size:18px;line-height:1.45;font-weight:600}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
.section{padding:48px 0}
@media (min-width:768px){.section{padding:64px 0}}
@media (min-width:1024px){.section{padding:80px 0}}
.muted{color:var(--tx-2)}
.weak{color:var(--tx-3)}
.dotted{background-image:radial-gradient(circle,rgba(255,255,255,.07) 1px,transparent 1px);background-size:10px 10px}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:80;background:var(--bg-1);border-bottom:1px solid var(--line)}
.nav-inner{position:relative;display:flex;align-items:center;height:64px;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.nav-inner{height:64px;padding:0 32px}}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:22px;height:22px;background:linear-gradient(135deg,var(--brand) 0%,var(--accent) 100%);clip-path:polygon(0 0,100% 0,100% 62%,62% 100%,0 100%);position:relative}
.logo-mark::after{content:"";position:absolute;right:3px;bottom:3px;width:5px;height:5px;border-radius:50%;background:var(--bg-0)}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--tx-1)}
.desktop-nav{display:flex;align-items:center;gap:4px;margin-left:28px;flex:1;min-width:0}
.nav-link{display:inline-flex;align-items:center;height:64px;padding:0 12px;font-size:15px;font-weight:600;color:var(--tx-2);border-bottom:2px solid transparent;transition:color .16s ease,border-color .16s ease}
.nav-link:hover{color:var(--tx-1)}
.nav-link.is-active{color:var(--tx-1);border-bottom-color:var(--accent)}
.nav-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.mega-wrap{position:relative}
.mega-trigger{display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 14px;border-radius:var(--r-btn);background:var(--bg-2);border:1px solid var(--line);color:var(--tx-1);font-size:14px;font-weight:600;cursor:pointer;transition:border-color .16s ease,color .16s ease}
.mega-trigger:hover{border-color:var(--accent);color:var(--accent)}
.mega-caret{width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px)}
.mega-panel{position:absolute;right:0;top:calc(100% + 12px);width:820px;display:grid;grid-template-columns:1.1fr 1.2fr 1fr;gap:24px;background:var(--bg-1);border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--sh-hover);opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .16s ease,transform .16s ease,visibility .16s}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--tx-3);margin-bottom:10px}
.mega-list{display:flex;flex-direction:column;gap:2px}
.mega-item{display:flex;align-items:center;gap:10px;height:38px;padding:0 10px;border-radius:8px;font-size:14px;color:var(--tx-2);transition:background .16s ease,color .16s ease}
.mega-item:hover{background:var(--bg-2);color:var(--tx-1)}
.mega-num{font-size:12px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.mega-mini{display:block;padding:10px;border-radius:8px;transition:background .16s ease}
.mega-mini:hover{background:var(--bg-2)}
.mega-mini-t{display:block;font-size:14px;color:var(--tx-1);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mega-mini-d{display:block;font-size:12px;color:var(--tx-3);font-variant-numeric:tabular-nums}
.mega-card{display:block;padding:14px;border:1px solid var(--line);border-radius:12px;background:var(--bg-2);transition:border-color .16s ease,transform .16s ease}
.mega-card:hover{border-color:rgba(18,224,196,.4);transform:translateY(-2px)}
.mega-card-t{display:block;font-size:14px;font-weight:600;color:var(--tx-1);margin-bottom:4px}
.mega-card-d{display:block;font-size:12px;color:var(--tx-3);line-height:1.6}
.nav-toggle{display:none}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:background .16s ease,color .16s ease,border-color .16s ease,transform .16s ease}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn-primary{background:var(--brand);color:var(--bg-0)}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-1px)}
.btn-primary:active{background:var(--brand-700);transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--tx-1)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-size:14px;font-weight:600}
.btn-text:hover{text-decoration:underline;text-underline-offset:4px}

/* ============ 徽章 / 标签 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-badge);background:var(--bg-2);color:var(--accent);font-size:12px;font-weight:600;letter-spacing:.02em}
.badge-warn{background:rgba(255,197,61,.14);color:var(--warn)}
.badge-soft{background:rgba(255,90,31,.14);color:var(--brand-600)}
.dot{width:6px;height:6px;border-radius:50%;background:var(--brand);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,90,31,.55)}70%{box-shadow:0 0 0 7px rgba(255,90,31,0)}100%{box-shadow:0 0 0 0 rgba(255,90,31,0)}}

/* ============ 面包屑 ============ */
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--tx-2);margin-bottom:12px}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:var(--tx-3)}
.crumb .now{color:var(--accent)}

/* ============ Hero ============ */
.hero-band{position:relative;min-height:420px;display:flex;align-items:center;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;border-bottom:1px solid var(--line)}
.hero-band::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,14,18,.72) 0%,rgba(11,14,18,.86) 100%)}
.hero-band .container{position:relative;z-index:2;text-align:center;padding-top:56px;padding-bottom:56px}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:var(--r-badge);background:rgba(18,224,196,.12);color:var(--accent);font-size:12px;font-weight:600;margin-bottom:16px}
.hero-band h1{max-width:820px;margin:0 auto 16px}
.hero-sub{max-width:660px;margin:0 auto 26px;color:var(--tx-2);font-size:16px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.hero-meta{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;margin-top:26px;font-size:13px;color:var(--tx-3)}
.hero-meta strong{color:var(--accent);font-weight:700}

/* ============ 数据条 ============ */
.stat-bar{background:var(--bg-1);border-bottom:1px solid var(--line)}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;padding:26px 0}
@media (min-width:768px){.stat-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
.stat-item{padding-left:14px;border-left:2px solid var(--line)}
.stat-item strong{display:block;font-size:30px;line-height:1.15;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}
.stat-item span{display:block;font-size:13px;color:var(--tx-3);margin-top:4px}

/* ============ 板块头部 ============ */
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:24px}
.sec-head p{color:var(--tx-2);font-size:15px;margin-top:8px;max-width:660px}

/* ============ 密集小卡网格（4 列） ============ */
.card-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(4,1fr)}}
.card{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);padding:14px;box-shadow:var(--sh-card);transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;display:flex;flex-direction:column;gap:12px}
.card:hover{border-color:rgba(18,224,196,.4);transform:translateY(-2px);box-shadow:var(--sh-hover)}
.card-media{position:relative;border-radius:var(--r-img);overflow:hidden;aspect-ratio:3/2;background:var(--bg-1)}
.card-media img{width:100%;height:100%;object-fit:cover}
.card-media .badge{position:absolute;left:8px;top:8px;background:rgba(11,14,18,.82)}
.card-media .badge-live{background:var(--brand);color:var(--bg-0)}
.card h3{font-size:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card p{font-size:13px;line-height:1.65;color:var(--tx-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;color:var(--tx-3);font-variant-numeric:tabular-nums;margin-top:auto}
.card-foot .arrow{color:var(--accent);font-weight:700}
.card:focus-within{border-color:var(--accent)}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:768px){.flow{grid-template-columns:repeat(3,1fr);gap:24px}}
.flow-item{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:22px}
.flow-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:8px;background:rgba(255,90,31,.14);color:var(--brand);font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:12px}
.flow-item h3{margin-bottom:8px}
.flow-item p{font-size:14px;color:var(--tx-2)}

/* ============ 订阅表单 ============ */
.sub-panel{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:26px}
.sub-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:1024px){.sub-grid{grid-template-columns:1fr 1.05fr;gap:40px;align-items:center}}
.sub-form{display:flex;flex-direction:column;gap:12px}
@media (min-width:768px){.sub-form{flex-direction:row;align-items:center}}
.sub-input{width:100%;height:44px;padding:0 14px;border-radius:var(--r-input);background:var(--bg-0);border:1px solid var(--line);color:var(--tx-1);font-size:15px;outline:none;transition:border-color .16s ease,box-shadow .16s ease}
.sub-input::placeholder{color:var(--tx-3)}
.sub-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(18,224,196,.16)}
.sub-note{font-size:12px;color:var(--tx-3);margin-top:10px}
.sub-points{display:flex;flex-wrap:wrap;gap:16px;margin-top:16px;font-size:12px;color:var(--tx-3)}

/* ============ 适用场景（5:7 交错） ============ */
.fit-grid{display:grid;grid-template-columns:1fr;gap:24px;align-items:center}
@media (min-width:1024px){.fit-grid{grid-template-columns:5fr 7fr;gap:40px}}
.fit-list{display:grid;grid-template-columns:1fr;gap:12px}
@media (min-width:640px){.fit-list{grid-template-columns:repeat(2,1fr)}}
.fit-list li{list-style:none;display:flex;gap:10px;background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:14px;font-size:14px;color:var(--tx-2)}
.fit-list li strong{color:var(--tx-1);font-weight:600}
.fit-check{color:var(--accent);font-weight:700}
.fit-img{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line)}
.fit-img img{width:100%;aspect-ratio:3/2;object-fit:cover}

/* ============ FAQ ============ */
.faq{border:1px solid var(--line);border-radius:var(--r-card);background:var(--bg-1);overflow:hidden}
.faq details{border-bottom:1px solid var(--line)}
.faq details:last-child{border-bottom:none}
.faq summary{min-height:48px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 20px;cursor:pointer;list-style:none;font-size:15px;font-weight:600;color:var(--tx-1)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-size:18px;line-height:1;flex-shrink:0}
.faq details[open] summary::after{content:"−"}
.faq summary:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
.faq .faq-body{padding:0 20px 16px;font-size:14px;color:var(--tx-2)}

/* ============ CTA 横条 ============ */
.cta-band{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-inner{display:flex;flex-direction:column;gap:18px;padding:34px 0}
@media (min-width:768px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:28px}}
.cta-inner h2{font-size:clamp(20px,2.4vw,26px)}
.cta-inner p{color:var(--tx-2);font-size:14px;margin-top:6px}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:48px 0 32px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:repeat(4,1fr)}}
.footer-title{font-size:14px;font-weight:700;color:var(--tx-1);margin-bottom:12px}
.footer-desc{font-size:13px;line-height:1.75;color:var(--tx-2)}
.footer-link{display:block;font-size:13px;color:var(--tx-2);padding:4px 0;transition:color .16s ease}
.footer-link:hover{color:var(--accent)}
.footer-bottom{display:flex;flex-direction:column;gap:8px;padding:18px 0 26px;border-top:1px solid var(--line);font-size:13px;color:var(--tx-3)}
@media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}

/* ============ 移动端导航 ============ */
@media (max-width:1023px){
  .nav-toggle{
    display:block;position:absolute;right:16px;top:12px;width:40px;height:40px;margin:0;
    -webkit-appearance:none;appearance:none;border:1px solid var(--line);border-radius:10px;
    background:var(--bg-2);cursor:pointer;z-index:90;
  }
  .nav-toggle::before{
    content:"";position:absolute;left:11px;top:18px;width:18px;height:2px;background:var(--tx-1);
    box-shadow:0 -6px 0 var(--tx-1),0 6px 0 var(--tx-1);
  }
  .nav-toggle:checked{background:var(--bg-1);border-color:var(--accent)}
  .logo{max-width:calc(100% - 120px)}
  .desktop-nav{
    position:fixed;inset:0;z-index:60;margin:0;padding:76px 20px 46vh;flex-direction:column;align-items:stretch;
    gap:0;background:var(--bg-1);transform:translateX(100%);transition:transform .2s ease;overflow-y:auto;visibility:hidden;
  }
  .nav-toggle:checked ~ .desktop-nav{transform:translateX(0);visibility:visible}
  .nav-link{height:44px;padding:0;font-size:16px;border-bottom:1px solid var(--line);border-left:none;border-bottom-width:1px}
  .nav-link.is-active{color:var(--accent);border-bottom-color:var(--line)}
  .nav-right{
    display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;flex-direction:column;align-items:stretch;gap:0;
    background:var(--bg-1);border-top:1px solid var(--line);padding:14px 20px 22px;max-height:46vh;overflow-y:auto;
  }
  .nav-toggle:checked ~ .nav-right{display:flex}
  .mega-wrap{width:100%}
  .mega-trigger{display:none}
  .mega-panel{position:static;width:100%;grid-template-columns:1fr;gap:16px;opacity:1;visibility:visible;transform:none;box-shadow:none;margin-top:0;padding:14px;background:var(--bg-2)}
  .hero-band{min-height:360px}
}
@media (max-width:520px){
  .hero-band .container{padding-top:40px;padding-bottom:40px}
  .hero-actions .btn{width:100%}
  .sub-form .btn{width:100%}
  .stat-item strong{font-size:26px}
}

/* roulang page: category3 */
:root{
  --bg-0:#0B0E12;
  --bg-1:#12161C;
  --bg-2:#1A2028;
  --line:#262E38;
  --brand:#FF5A1F;
  --brand-600:#FF7A3D;
  --brand-700:#E04A12;
  --accent:#12E0C4;
  --warn:#FFC53D;
  --ok:#35D07F;
  --err:#FF4D5E;
  --tx-1:#EEF2F6;
  --tx-2:#A7B2BE;
  --tx-3:#6E7A87;
  --r-card:14px;
  --r-btn:10px;
  --r-badge:6px;
  --r-img:12px;
  --sh-card:0 8px 24px rgba(0,0,0,.35);
  --sh-hover:0 14px 32px rgba(0,0,0,.5);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body.page-body{
  margin:0;
  background:var(--bg-0);
  color:var(--tx-1);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,p{margin:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 32px}}
.skip-link{position:absolute;left:-9999px;top:0;z-index:100;background:var(--brand);color:#0B0E12;padding:10px 16px;border-radius:0 0 10px 0;font-weight:600}
.skip-link:focus{left:0}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg-1);border-bottom:1px solid var(--line)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;min-height:64px;display:flex;align-items:center;gap:20px}
@media(min-width:1024px){.nav-inner{padding:0 32px}}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--tx-1);white-space:nowrap}
.logo-mark{position:relative;width:22px;height:22px;background:var(--brand);clip-path:polygon(0 0,100% 0,100% 68%,68% 100%,0 100%);flex:0 0 auto}
.logo-mark::after{content:"";position:absolute;right:-3px;bottom:-3px;width:6px;height:6px;border-radius:50%;background:var(--accent);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(18,224,196,.55)}70%{box-shadow:0 0 0 7px rgba(18,224,196,0)}100%{box-shadow:0 0 0 0 rgba(18,224,196,0)}}
.logo-text{letter-spacing:.01em}
.nav-toggle{display:none}
.desktop-nav{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{position:relative;display:flex;align-items:center;height:64px;padding:0 12px;font-size:15px;font-weight:600;color:var(--tx-2);transition:color .16s ease}
.nav-link:hover{color:var(--tx-1)}
.nav-link.is-active{color:var(--tx-1)}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;background:var(--accent);border-radius:2px}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.mega-wrap{position:relative}
.mega-trigger{display:flex;align-items:center;gap:7px;height:38px;padding:0 14px;border-radius:var(--r-btn);border:1px solid var(--line);background:transparent;color:var(--tx-1);font-size:14px;font-weight:600;cursor:pointer;transition:border-color .16s ease,color .16s ease}
.mega-trigger:hover{border-color:var(--accent);color:var(--accent)}
.mega-caret{width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid currentColor;transition:transform .18s ease}
.mega-wrap:hover .mega-caret,.mega-wrap:focus-within .mega-caret{transform:rotate(180deg)}
.mega-panel{position:absolute;right:0;top:calc(100% + 12px);width:880px;max-width:calc(100vw - 40px);display:grid;grid-template-columns:1.05fr 1fr 1fr;gap:24px;padding:22px;background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:0 18px 44px rgba(0,0,0,.55);opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .12s ease,transform .12s ease,visibility .12s ease}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--tx-3);margin-bottom:12px}
.mega-list{display:flex;flex-direction:column;gap:2px}
.mega-item{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:8px;font-size:14px;color:var(--tx-2);transition:background .16s ease,color .16s ease}
.mega-item:hover{background:var(--bg-2);color:var(--tx-1)}
.mega-num{font-size:12px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.mega-mini{display:block;padding:8px 10px;border-radius:8px;transition:background .16s ease}
.mega-mini:hover{background:var(--bg-2)}
.mega-mini-t{display:block;font-size:14px;color:var(--tx-1);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mega-mini-d{display:block;font-size:12px;color:var(--tx-3);margin-top:4px}
.mega-card{display:flex;flex-direction:column;gap:6px;padding:14px;border:1px solid var(--line);border-radius:12px;background:var(--bg-2);transition:border-color .16s ease,transform .16s ease}
.mega-card:hover{border-color:rgba(18,224,196,.45);transform:translateY(-2px)}
.mega-card-ico{position:relative;width:20px;height:20px;border:1px solid var(--accent);border-radius:6px;flex:0 0 auto}
.mega-card-ico::after{content:"";position:absolute;inset:5px;background:var(--accent);border-radius:2px}
.mega-card-t{font-size:14px;font-weight:600;color:var(--tx-1)}
.mega-card-d{font-size:12px;line-height:1.55;color:var(--tx-3)}
.nav-burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:38px;border:1px solid var(--line);border-radius:var(--r-btn);cursor:pointer;padding:0 11px}
.nav-burger span{display:block;height:2px;background:var(--tx-1);border-radius:2px}
@media(max-width:1023px){
  .nav-inner{flex-wrap:wrap;padding:8px 20px;min-height:56px;gap:12px}
  .nav-burger{display:flex;order:2;margin-left:auto}
  .desktop-nav,.nav-right{display:none}
  .nav-toggle:checked ~ .desktop-nav{display:flex;order:3;flex-direction:column;width:100%;margin-top:4px;padding-top:8px;border-top:1px solid var(--line)}
  .nav-toggle:checked ~ .desktop-nav .nav-link{height:44px;width:100%;padding:0 4px;font-size:16px}
  .nav-toggle:checked ~ .desktop-nav .nav-link.is-active::after{left:4px;right:auto;width:22px}
  .nav-toggle:checked ~ .nav-right{display:flex;order:4;flex-direction:column;align-items:stretch;width:100%;margin:0;padding-bottom:16px}
  .mega-trigger{display:none}
  .mega-panel{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;background:transparent;padding:0;width:100%;max-width:100%;grid-template-columns:1fr;gap:18px}
  .mega-card{background:var(--bg-2)}
}

/* ---------- buttons / badges ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;transition:background .16s ease,border-color .16s ease,color .16s ease,transform .16s ease}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn-primary{background:var(--brand);color:#0B0E12}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-1px)}
.btn-primary:active{background:var(--brand-700);transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--tx-1)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-link{color:var(--accent);font-weight:600;transition:color .16s ease}
.btn-link:hover{text-decoration:underline;text-underline-offset:4px}
@media(max-width:640px){.btn{height:48px;width:100%}}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-badge);background:var(--bg-2);color:var(--accent);font-size:12px;font-weight:600;letter-spacing:.02em}
.status{position:absolute;left:10px;top:10px;display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-badge);font-size:12px;font-weight:600;letter-spacing:.02em;background:rgba(11,14,18,.82)}
.status-live{color:var(--brand)}
.status-soon{color:var(--warn)}
.status-done{color:var(--tx-3)}
.dot{width:6px;height:6px;border-radius:50%;background:currentColor;animation:pulse 2s infinite}

/* ---------- breadcrumb / hero ---------- */
.crumb{padding:20px 0 0;font-size:13px;color:var(--tx-2);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.crumb a:hover{color:var(--accent)}
.crumb-sep{color:var(--tx-3)}
.crumb-current{color:var(--accent)}
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);margin-top:16px}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.26}
.hero-dots{position:absolute;inset:0;background-image:radial-gradient(rgba(238,242,246,.5) 1px,transparent 1px);background-size:10px 10px;opacity:.06}
.hero-inner{position:relative;padding:44px 0 56px;display:grid;gap:32px}
@media(min-width:1024px){.hero-inner{grid-template-columns:1.3fr .7fr;gap:48px;align-items:center;padding:72px 0}}
.hero-h1{font-size:34px;line-height:1.22;font-weight:700;letter-spacing:-.01em;margin-top:16px}
@media(min-width:768px){.hero-h1{font-size:44px}}
.hero-h1 em{font-style:normal;color:var(--brand)}
.hero-lead{margin-top:16px;font-size:16px;line-height:1.7;color:var(--tx-2);max-width:640px}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}
.stat-stack{display:flex;flex-direction:column;gap:12px}
.stat-card{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:16px 18px;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-card)}
.stat-num{font-size:32px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1}
.stat-label{font-size:13px;color:var(--tx-3)}

/* ---------- layout ---------- */
.layout{display:grid;grid-template-columns:1fr;gap:32px;padding:48px 0 0}
@media(min-width:1024px){.layout{grid-template-columns:280px 1fr;gap:48px;padding:72px 0 0}}
.anchor-nav{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:18px}
.anchor-title{font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--tx-3);margin-bottom:12px}
.anchor-list{display:flex;flex-direction:column;gap:2px}
.anchor-link{display:flex;align-items:center;gap:10px;padding:10px;border-radius:8px;border-left:2px solid transparent;font-size:14px;color:var(--tx-2);transition:background .16s ease,color .16s ease,border-color .16s ease}
.anchor-link:hover{background:var(--bg-2);color:var(--tx-1);border-left-color:var(--accent)}
.anchor-num{font-size:12px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.anchor-note{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);font-size:12px;line-height:1.6;color:var(--tx-3)}
@media(min-width:1024px){.anchor-nav{position:sticky;top:88px}}
@media(max-width:1023px){
  .anchor-nav{display:flex;gap:8px;overflow-x:auto;padding:10px}
  .anchor-title,.anchor-note{display:none}
  .anchor-list{flex-direction:row;gap:8px}
  .anchor-link{white-space:nowrap;border:1px solid var(--line);border-left:1px solid var(--line)}
}
.content-col{display:flex;flex-direction:column;gap:56px}
@media(min-width:1024px){.content-col{gap:72px}}
section[id]{scroll-margin-top:88px}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:24px}
.sec-h2{font-size:26px;line-height:1.3;font-weight:700;color:var(--tx-1)}
@media(min-width:768px){.sec-h2{font-size:30px}}
.sec-sub{margin-top:8px;font-size:14px;color:var(--tx-3)}
.sec-rule{height:1px;background:var(--line);margin-bottom:24px}

/* ---------- list ---------- */
.replay-list{display:flex;flex-direction:column;gap:16px}
.list-item{display:grid;grid-template-columns:1fr;gap:16px;padding:16px;background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease}
@media(min-width:768px){.list-item{grid-template-columns:212px 1fr;align-items:center;min-height:96px;padding:18px}}
.list-item:hover{border-color:rgba(18,224,196,.42);transform:translateY(-2px);box-shadow:var(--sh-hover)}
.list-thumb{position:relative;display:block;border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/9;background:var(--bg-2)}
.list-thumb img{width:100%;height:100%;object-fit:cover}
.list-body{display:flex;flex-direction:column;gap:8px}
.list-title{font-size:18px;line-height:1.45;font-weight:600;color:var(--tx-1)}
.list-title a:hover{color:var(--accent)}
.list-desc{font-size:14px;line-height:1.65;color:var(--tx-2)}
.list-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--tx-3);font-variant-numeric:tabular-nums}
.meta-sep{width:1px;height:12px;background:var(--line)}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:26px;border-left:1px solid var(--line);display:flex;flex-direction:column;gap:22px}
.tl-item{position:relative}
.tl-item::before{content:"";position:absolute;left:-32px;top:5px;width:10px;height:10px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 3px rgba(255,90,31,.18)}
.tl-time{font-size:14px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}
.tl-title{font-size:18px;font-weight:600;margin-top:4px;color:var(--tx-1)}
.tl-desc{font-size:14px;line-height:1.7;color:var(--tx-2);margin-top:6px}

/* ---------- scenes ---------- */
.scene-grid{display:grid;gap:16px}
@media(min-width:640px){.scene-grid{grid-template-columns:1fr 1fr}}
.scene-card{padding:20px;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);transition:border-color .18s ease,transform .18s ease}
.scene-card:hover{border-color:rgba(18,224,196,.42);transform:translateY(-2px)}
.scene-num{font-size:12px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.scene-title{font-size:18px;font-weight:600;margin-top:8px;color:var(--tx-1)}
.scene-desc{font-size:14px;line-height:1.7;color:var(--tx-2);margin-top:6px}

/* ---------- steps ---------- */
.step-grid{display:grid;gap:16px}
@media(min-width:640px){.step-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.step-grid{grid-template-columns:repeat(4,1fr)}}
.step-card{padding:20px;background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);position:relative;overflow:hidden}
.step-card::after{content:"";position:absolute;left:0;top:0;width:100%;height:2px;background:linear-gradient(90deg,var(--brand),var(--accent))}
.step-num{font-size:22px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}
.step-title{font-size:16px;font-weight:600;margin-top:10px;color:var(--tx-1)}
.step-desc{font-size:14px;line-height:1.7;color:var(--tx-2);margin-top:6px}

/* ---------- faq ---------- */
.faq{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:52px;padding:14px 18px;font-size:15px;font-weight:600;color:var(--tx-1);cursor:pointer;list-style:none}
.faq-q::-webkit-details-marker{display:none}
.faq-icon{position:relative;width:14px;height:14px;flex:0 0 auto;color:var(--accent)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq-icon::before{left:0;right:0;top:6px;height:2px}
.faq-icon::after{top:0;bottom:0;left:6px;width:2px;transition:transform .18s ease}
details[open] .faq-icon::after{transform:scaleY(0)}
.faq-a{padding:0 18px 18px;font-size:14px;line-height:1.75;color:var(--tx-2)}

/* ---------- cta ---------- */
.cta-bar{position:relative;overflow:hidden;margin-top:56px;background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;display:flex;flex-direction:column;gap:18px}
@media(min-width:768px){.cta-bar{flex-direction:row;align-items:center;justify-content:space-between;padding:32px 36px}}
.cta-dots{position:absolute;inset:0;background-image:radial-gradient(rgba(238,242,246,.5) 1px,transparent 1px);background-size:10px 10px;opacity:.06}
.cta-title{position:relative;font-size:22px;font-weight:700;color:var(--tx-1)}
.cta-desc{position:relative;font-size:14px;color:var(--tx-2);margin-top:6px}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:12px}
@media(max-width:640px){.cta-actions .btn{width:100%}}

/* ---------- footer ---------- */
.site-footer{margin-top:72px;background:var(--bg-1);border-top:1px solid var(--line);padding:48px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}}
.footer-title{font-size:15px;font-weight:700;color:var(--tx-1);margin-bottom:12px}
.footer-desc{font-size:14px;line-height:1.7;color:var(--tx-2)}
.footer-link{display:block;font-size:14px;color:var(--tx-2);padding:5px 0;transition:color .16s ease}
.footer-link:hover{color:var(--accent)}
.footer-bottom{margin-top:36px;padding:18px 0;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;font-size:13px;color:var(--tx-3)}

/* roulang page: category4 */
:root{
    --bg-0:#0B0E12; --bg-1:#12161C; --bg-2:#1A2028; --line:#262E38;
    --brand:#FF5A1F; --brand-600:#FF7A3D; --brand-700:#E04A12;
    --accent:#12E0C4; --warn:#FFC53D;
    --tx-1:#EEF2F6; --tx-2:#A7B2BE; --tx-3:#6E7A87;
    --ok:#35D07F; --err:#FF4D5E;
    --r-card:14px; --r-btn:10px; --r-badge:6px; --r-input:10px; --r-cover:12px;
    --shadow:0 8px 24px rgba(0,0,0,.35);
    --shadow-hover:0 14px 32px rgba(0,0,0,.5);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  html body{
    margin:0;
    background:var(--bg-0);
    color:var(--tx-1);
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  html img{max-width:100%;display:block}
  html a{color:inherit;text-decoration:none}
  html button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  html ul{list-style:none;margin:0;padding:0}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:1024px){.container{padding:0 32px}}

  /* ---------- header ---------- */
  .site-header{position:sticky;top:0;z-index:80;background:var(--bg-1);border-bottom:1px solid var(--line)}
  .nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;height:64px;display:flex;align-items:center;gap:24px;position:relative}
  @media (min-width:1024px){.nav-inner{padding:0 32px}}
  .nav-toggle{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}

  .logo{display:inline-flex;align-items:center;gap:10px;position:relative;flex-shrink:0}
  .logo-mark{width:22px;height:22px;background:var(--brand);clip-path:polygon(0 0,100% 0,100% 66%,70% 100%,0 100%)}
  .logo::after{content:"";position:absolute;left:16px;top:6px;width:6px;height:6px;border-radius:50%;background:var(--accent);animation:pulse 2s ease-in-out infinite}
  .logo-text{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--tx-1)}
  @keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.7)}}

  .desktop-nav{display:flex;align-items:center;gap:26px}
  .nav-link{position:relative;height:64px;display:inline-flex;align-items:center;font-size:15px;font-weight:600;color:var(--tx-2);transition:color .15s ease}
  .nav-link::after{content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .15s ease}
  .nav-link:hover{color:var(--tx-1)}
  .nav-link:hover::after{transform:scaleX(1)}
  .nav-link.is-active{color:var(--tx-1)}
  .nav-link.is-active::after{transform:scaleX(1)}

  .nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
  .mega-wrap{position:relative}
  .mega-trigger{display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);font-size:14px;font-weight:600;color:var(--tx-2);transition:all .15s ease}
  .mega-trigger:hover{border-color:var(--accent);color:var(--accent)}
  .mega-caret{width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid currentColor}
  .mega-panel{
    position:absolute;top:calc(100% + 12px);right:0;width:760px;
    display:grid;grid-template-columns:1.05fr 1fr 1fr;gap:24px;
    padding:24px;background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(6px);
    transition:opacity .12s ease,transform .12s ease,visibility .12s ease;z-index:90;
  }
  .mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
  .mega-col-title{margin:0 0 12px;font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--tx-3);text-transform:uppercase}
  .mega-list{display:flex;flex-direction:column;gap:2px}
  .mega-item{display:flex;align-items:center;gap:10px;height:36px;font-size:14px;font-weight:600;color:var(--tx-2);border-radius:8px;padding:0 8px;transition:all .15s ease}
  .mega-item:hover{background:var(--bg-2);color:var(--accent)}
  .mega-num{font-size:12px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
  .mega-mini{display:block;padding:8px;border-radius:8px;transition:background .15s ease}
  .mega-mini:hover{background:var(--bg-2)}
  .mega-mini-t{display:block;font-size:14px;font-weight:600;color:var(--tx-1);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .mega-mini-d{display:block;font-size:12px;color:var(--tx-3)}
  .mega-card{display:block;padding:14px;background:var(--bg-2);border:1px solid var(--line);border-radius:12px;margin-bottom:10px;transition:all .15s ease}
  .mega-card:hover{border-color:rgba(18,224,196,.4);transform:translateY(-2px)}
  .mega-card-top{display:flex;align-items:center;gap:10px;margin-bottom:6px}
  .mega-ico{width:18px;height:18px;background:var(--accent);clip-path:polygon(0 0,100% 0,100% 62%,66% 100%,0 100%)}
  .mega-card-t{font-size:14px;font-weight:700;color:var(--tx-1)}
  .mega-card-d{font-size:12px;color:var(--tx-3);line-height:1.6}
  .mega-card-ar{display:block;margin-top:8px;font-size:12px;font-weight:600;color:var(--accent)}

  .nav-burger{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);position:relative}
  .nav-burger::before,.nav-burger::after{content:"";position:absolute;left:11px;width:18px;height:2px;background:var(--tx-1);border-radius:2px}
  .nav-burger::before{top:14px}
  .nav-burger::after{top:22px}

  @media (max-width:1023px){
    .nav-inner{height:56px;gap:12px}
    .desktop-nav{
      position:fixed;top:56px;left:0;right:0;bottom:0;z-index:85;
      display:flex;flex-direction:column;align-items:stretch;gap:0;
      padding:10px 20px 40px;background:var(--bg-1);border-top:1px solid var(--line);
      transform:translateX(-100%);transition:transform .22s ease;overflow-y:auto;
    }
    .nav-toggle:checked ~ .desktop-nav{transform:none}
    .nav-link{height:44px;line-height:44px;font-size:16px;padding:0 10px;border-bottom:1px solid var(--line)}
    .nav-link::after{display:none}
    .nav-link.is-active{background:rgba(18,224,196,.08);box-shadow:inset 2px 0 0 var(--accent);color:var(--tx-1)}
    .nav-burger{display:block}
    .mega-panel{
      position:fixed;top:56px;left:0;right:0;width:auto;max-height:calc(100vh - 56px);
      overflow-y:auto;grid-template-columns:1fr;gap:20px;padding:18px 20px;
      border-radius:0;border-left:0;border-right:0;transform:none;
    }
  }

  /* ---------- buttons ---------- */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;
    border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:all .15s ease}
  .btn-primary{background:var(--brand);color:#0B0E12}
  .btn-primary:hover{background:var(--brand-600);transform:translateY(-1px)}
  .btn-primary:active{background:var(--brand-700);transform:translateY(0)}
  .btn-ghost{border-color:var(--line);color:var(--tx-1)}
  .btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
  .btn-group{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
  @media (max-width:767px){
    .btn{height:48px}
    .btn-group .btn{flex:1 1 100%}
  }

  /* ---------- hero ---------- */
  .hero{position:relative;padding:40px 0 64px;background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,.055) 1px,transparent 0);background-size:10px 10px}
  @media (min-width:1024px){.hero{padding:56px 0 80px}}
  .hero-grid{display:grid;grid-template-columns:1fr;gap:32px}
  @media (min-width:1024px){.hero-grid{grid-template-columns:1.25fr .95fr;gap:48px;align-items:center}}
  .crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--tx-2);margin:0 0 16px}
  .crumbs a:hover{color:var(--accent)}
  .crumbs .cur{color:var(--accent)}
  .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:var(--r-badge);
    background:var(--bg-2);border:1px solid var(--line);color:var(--accent);font-size:12px;font-weight:600;letter-spacing:.02em}
  .h1{margin:18px 0 0;font-size:32px;line-height:1.22;font-weight:700;letter-spacing:-.01em}
  @media (min-width:768px){.h1{font-size:40px}}
  @media (min-width:1024px){.h1{font-size:44px}}
  .lead{margin:16px 0 0;font-size:16px;line-height:1.75;color:var(--tx-2);max-width:640px}

  .hero-panel{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow)}
  .panel-head{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--tx-2)}
  .dot-live{width:6px;height:6px;border-radius:50%;background:var(--brand);animation:pulse 2s ease-in-out infinite}
  .panel-num{margin:14px 0 0;font-size:44px;line-height:1.1;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}
  .panel-num span{display:block;margin-top:6px;font-size:14px;font-weight:600;color:var(--tx-2);font-variant-numeric:normal}
  .panel-list{margin:18px 0 0;border-top:1px solid var(--line)}
  .panel-list li{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--tx-2)}
  .panel-list strong{color:var(--tx-1);font-variant-numeric:tabular-nums}
  .progress{margin-top:18px;height:2px;border-radius:2px;background:var(--line);overflow:hidden}
  .progress span{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--accent))}
  .progress-text{margin:8px 0 0;font-size:12px;color:var(--tx-3);font-variant-numeric:tabular-nums}

  /* ---------- sections ---------- */
  .section{padding:48px 0}
  @media (min-width:768px){.section{padding:64px 0}}
  @media (min-width:1024px){.section{padding:80px 0}}
  .section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
  .h2{margin:0;font-size:26px;line-height:1.3;font-weight:700}
  @media (min-width:1024px){.h2{font-size:30px}}
  .section-desc{margin:10px 0 0;font-size:15px;color:var(--tx-2);max-width:720px}
  .section-link{font-size:14px;font-weight:600;color:var(--accent)}
  .section-link:hover{text-decoration:underline;text-underline-offset:4px}

  .card-grid{display:grid;grid-template-columns:1fr;gap:24px}
  @media (min-width:768px){.card-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr)}}

  .card{display:flex;flex-direction:column;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
    padding:18px;box-shadow:var(--shadow);transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}
  .card:hover{transform:translateY(-2px);border-color:rgba(18,224,196,.4);box-shadow:var(--shadow-hover)}
  .card-cover{position:relative;aspect-ratio:16/9;border-radius:var(--r-cover);overflow:hidden;background:var(--bg-1)}
  .card-cover img{width:100%;height:100%;object-fit:cover}
  .card-badge{position:absolute;top:10px;left:10px;padding:4px 10px;border-radius:var(--r-badge);font-size:12px;font-weight:600;letter-spacing:.02em}
  .badge-live{background:rgba(255,90,31,.9);color:#0B0E12}
  .badge-soon{background:rgba(255,197,61,.92);color:#0B0E12}
  .badge-end{background:rgba(110,122,135,.9);color:#0B0E12}
  .card-title{margin:16px 0 0;font-size:19px;line-height:1.4;font-weight:600}
  .card-text{margin:10px 0 0;font-size:14px;line-height:1.7;color:var(--tx-2)}
  .card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
  .tag{display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--r-badge);background:var(--bg-1);
    border:1px solid var(--line);color:var(--accent);font-size:12px;font-weight:600;letter-spacing:.02em}
  .card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:18px;padding-top:14px;
    border-top:1px solid var(--line);font-size:13px;color:var(--tx-3);font-variant-numeric:tabular-nums}
  .card-foot .arrow{color:var(--accent);font-weight:600}

  .step-grid{display:grid;grid-template-columns:1fr;gap:16px}
  @media (min-width:640px){.step-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.step-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
  .step{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:20px;transition:border-color .18s ease,background .18s ease}
  .step:hover{border-color:rgba(18,224,196,.35);background:var(--bg-2)}
  .step-num{font-size:30px;font-weight:700;line-height:1;color:var(--brand);font-variant-numeric:tabular-nums}
  .step-title{margin:14px 0 0;font-size:18px;font-weight:600;line-height:1.4}
  .step-text{margin:8px 0 0;font-size:14px;line-height:1.7;color:var(--tx-2)}

  .cycle-grid{display:grid;grid-template-columns:1fr;gap:16px}
  @media (min-width:768px){.cycle-grid{grid-template-columns:repeat(2,1fr)}}
  .cycle-item{display:flex;align-items:center;gap:16px;background:var(--bg-2);border:1px solid var(--line);
    border-radius:var(--r-card);padding:14px;transition:border-color .18s ease,transform .18s ease}
  .cycle-item:hover{border-color:rgba(18,224,196,.4);transform:translateY(-2px)}
  .cycle-thumb{width:88px;height:64px;flex-shrink:0;border-radius:10px;overflow:hidden;background:var(--bg-1)}
  .cycle-thumb img{width:100%;height:100%;object-fit:cover}
  .cycle-body{min-width:0}
  .cycle-title{margin:0;font-size:16px;font-weight:600;line-height:1.4}
  .cycle-time{margin:6px 0 0;font-size:13px;color:var(--tx-3);font-variant-numeric:tabular-nums}
  .cycle-status{display:inline-flex;align-items:center;gap:6px;margin-top:8px;padding:3px 10px;border-radius:var(--r-badge);font-size:12px;font-weight:600}
  .st-live{background:rgba(255,90,31,.14);color:var(--brand)}
  .st-soon{background:rgba(255,197,61,.14);color:var(--warn)}

  .faq-group{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--bg-1)}
  .faq-item + .faq-item{border-top:1px solid var(--line)}
  .faq-item > summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:48px;
    padding:12px 20px;cursor:pointer;font-size:16px;font-weight:600;color:var(--tx-1);list-style:none}
  .faq-item > summary::-webkit-details-marker{display:none}
  .faq-item > summary::after{content:"+";color:var(--accent);font-size:19px;font-weight:700;line-height:1}
  .faq-item[open] > summary::after{content:"−"}
  .faq-item > summary:hover{background:var(--bg-2)}
  .faq-body{padding:0 20px 16px;font-size:15px;line-height:1.75;color:var(--tx-2)}

  .cta-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
    background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;
    background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,.05) 1px,transparent 0);background-size:10px 10px}
  .cta-title{margin:0;font-size:22px;font-weight:700;line-height:1.4}
  @media (min-width:1024px){.cta-title{font-size:26px}}
  .cta-text{margin:8px 0 0;font-size:14px;color:var(--tx-2)}

  /* ---------- footer ---------- */
  .site-footer{margin-top:80px;background:var(--bg-1);border-top:1px solid var(--line);padding:56px 0 0}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
  @media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr}}
  .footer-title{margin:0 0 14px;font-size:15px;font-weight:700;color:var(--tx-1)}
  .footer-desc{margin:0 0 12px;font-size:14px;line-height:1.7;color:var(--tx-2)}
  .footer-link{display:block;padding:6px 0;font-size:14px;color:var(--tx-2);transition:color .15s ease}
  .footer-link:hover{color:var(--accent)}
  .footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
    margin-top:40px;padding:20px 0 28px;border-top:1px solid var(--line);font-size:13px;color:var(--tx-3)}