/* roulang page: index */
:root{
  --brand:#FF6B3D;
  --brand-deep:#E85A2C;
  --brand-soft:#FFEFE8;
  --ink:#221A2E;
  --ink-2:#1C1720;
  --lime:#C8F25C;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --line:#E6E0D6;
  --muted:#5F5866;
  --dark-text:#F4F1EA;
  --star:#FFC24B;
  --danger:#D8482B;
  --ph:#EFEADF;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(34,26,46,.06), 0 12px 32px -14px rgba(34,26,46,.16);
  --shadow-2:0 2px 4px rgba(34,26,46,.08), 0 20px 40px -16px rgba(34,26,46,.24);
  --mono:ui-monospace,"SF Mono",Consolas,"Liberation Mono",Menlo,monospace;
  --sans:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --bs-primary:#FF6B3D;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#1C1720;
  --bs-border-color:#E6E0D6;
  --bs-border-radius:16px;
  --bs-link-color:#1C1720;
  --bs-link-hover-color:#FF6B3D;
  --bs-font-sans-serif:var(--sans);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--sans);font-size:16px;line-height:1.75;color:var(--ink-2);
  background:var(--bg);-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--ink-2);text-decoration:none;transition:color .16s ease-out}
a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;box-shadow:none}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.section{padding:96px 0}
.section-bg{background:var(--bg)}
.section-white{background:var(--card)}
.section-dark{background:var(--ink);color:var(--dark-text);position:relative;overflow:hidden}
.section-dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(244,241,234,.08) 1px,transparent 1px);
  background-size:18px 18px;
}
.section-dark > .container{position:relative;z-index:1}
.section-dark h2,.section-dark h3{color:var(--dark-text)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;
  color:var(--brand);font-weight:600;text-transform:uppercase;
}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-head h2{font-size:34px;font-weight:700;letter-spacing:-.01em;position:relative;padding-left:16px}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:999px;background:var(--brand);
}
.sec-head .sec-note{font-size:14px;color:var(--muted);max-width:520px;margin-top:8px}
.sec-link{font-size:14px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line);padding-bottom:2px;white-space:nowrap}
.sec-link:hover{color:var(--brand);border-bottom-color:var(--brand);text-decoration:none}
.mono{font-family:var(--mono);font-weight:600}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--bg);
  border-bottom:1px solid var(--line);transition:box-shadow .18s ease-out;
}
.site-header.is-scrolled{box-shadow:0 1px 2px rgba(34,26,46,.06)}
.nav-wrap{display:flex;align-items:center;gap:32px;min-height:76px}
.brand{display:flex;flex-direction:column;line-height:1.1;gap:2px;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{font-size:20px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.brand-mark span{color:var(--brand)}
.brand-sub{font-size:11px;letter-spacing:.14em;color:var(--muted);font-weight:500}
.chip-nav{display:flex;align-items:center;gap:8px;flex:1 1 auto;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;padding:4px 0}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;padding:10px 18px;border-radius:999px;font-size:14px;
  border:1px solid var(--line);color:var(--ink);background:transparent;white-space:nowrap;
  transition:background .16s ease-out,color .16s ease-out,border-color .16s ease-out;
}
.chip:hover{background:var(--brand-soft);color:var(--brand);border-color:var(--brand-soft);text-decoration:none}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.chip.active:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff}
.nav-actions{display:flex;align-items:center;gap:16px;margin-left:auto;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--card);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}

/* 按钮 */
.btn-brand,.btn-ghost,.btn-outline-ink,.btn-dark-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .16s ease-out;text-align:center;
}
.btn-brand{background:var(--brand);color:#fff}
.btn-brand:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);text-decoration:none}
.btn-brand:active{transform:translateY(0);box-shadow:none}
.btn-outline-ink{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline-ink:hover{background:var(--ink);color:#fff;text-decoration:none}
.btn-ghost{border-color:rgba(244,241,234,.4);color:var(--dark-text);background:transparent}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime);text-decoration:none}
.btn-dark-outline{border-color:var(--ink);color:var(--ink);background:var(--card)}
.btn-dark-outline:hover{background:var(--ink);color:var(--dark-text);text-decoration:none}
.nav-cta{padding:11px 22px;font-size:14px}

/* Hero */
.hero{position:relative;overflow:hidden;padding:72px 0 88px;background:var(--bg)}
.hero::before{
  content:"";position:absolute;top:-80px;right:-60px;width:300px;height:520px;background:var(--lime);
  transform:skewX(-12deg);opacity:.4;border-radius:32px;z-index:0;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:radial-gradient(rgba(34,26,46,.09) 1px,transparent 1px);background-size:18px 18px;opacity:.6;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--line);
  border-radius:999px;padding:6px 14px;font-size:13px;color:var(--muted);margin-bottom:20px;
}
.hero-badge i{width:8px;height:8px;border-radius:50%;background:var(--lime);display:inline-block}
.hero h1{font-size:48px;font-weight:800;letter-spacing:-.02em;line-height:1.15;margin-bottom:20px}
.hero h1 .hl{position:relative;display:inline-block}
.hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:-8px;height:3px;background:var(--brand);border-radius:999px;
}
.hero-sub{font-size:18px;line-height:1.7;color:var(--muted);max-width:520px;margin-bottom:28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px}
.hero-stats{display:flex;align-items:center;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.hero-stats .stat{display:flex;align-items:baseline;gap:6px;font-family:var(--mono);font-weight:600;color:var(--ink)}
.hero-stats .stat em{font-style:normal;font-family:var(--sans);font-weight:400;color:var(--muted);font-size:13px}
.hero-stats .divider{width:1px;height:14px;background:var(--line)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-lg);background:var(--ph);box-shadow:var(--shadow-1)}
.hero-float{
  position:absolute;right:-8px;bottom:-24px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-md);padding:14px 18px;box-shadow:var(--shadow-2);min-width:190px;
}
.hero-float .fl-line{display:flex;justify-content:space-between;gap:16px;font-size:12px;color:var(--muted)}
.hero-float .fl-line b{font-family:var(--mono);font-size:13px;color:var(--ink)}

/* 价值区 2x2 错位 */
.value-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.value-grid > .value-card:nth-child(2),
.value-grid > .value-card:nth-child(4){transform:translateY(32px)}
.value-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:24px;display:flex;gap:18px;box-shadow:var(--shadow-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.value-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(255,107,61,.2)}
.value-grid > .value-card:nth-child(2):hover,
.value-grid > .value-card:nth-child(4):hover{transform:translateY(29px)}
.value-num{font-family:var(--mono);font-size:28px;font-weight:600;color:var(--brand);line-height:1}
.value-card h3{font-size:19px;font-weight:600;margin-bottom:6px}
.value-card p{font-size:14.5px;color:var(--muted);line-height:1.7}

/* 轮播 */
.slider-layout{display:grid;grid-template-columns:1fr 240px;gap:28px;align-items:start}
.shot-frame{position:relative}
.shot-frame .carousel-inner{border-radius:var(--radius-md);overflow:hidden}
.shot-frame img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#2c2338}
.shot-cap{margin-top:16px;font-size:14px;color:rgba(244,241,234,.72)}
.shot-ctrl{display:flex;gap:12px;margin-top:18px}
.ctrl-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid rgba(244,241,234,.4);background:transparent;
  color:var(--dark-text);font-size:18px;line-height:1;display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .16s ease-out;
}
.ctrl-btn:hover{border-color:var(--lime);color:var(--lime)}
.shot-thumbs{display:flex;flex-direction:column;gap:10px}
.thumb-btn{
  text-align:left;background:transparent;border:0;border-left:3px solid transparent;padding:10px 12px;
  color:rgba(244,241,234,.66);font-size:14px;cursor:pointer;transition:all .16s ease-out;
}
.thumb-btn:hover{color:var(--dark-text)}
.thumb-btn.active{border-left-color:var(--lime);color:#fff;font-weight:600}
.thumb-btn .t-code{display:block;font-family:var(--mono);font-size:11px;color:rgba(244,241,234,.4);font-weight:600}
.thumb-btn.active .t-code{color:var(--lime)}

/* 系统要求 */
.spec-chips{display:flex;gap:10px;margin-bottom:28px;flex-wrap:wrap}
.spec-chip{
  padding:10px 22px;border-radius:999px;border:1px solid var(--line);background:var(--card);
  color:var(--ink);font-size:14px;font-weight:600;cursor:pointer;transition:all .16s ease-out;
}
.spec-chip:hover{background:var(--brand-soft);color:var(--brand);border-color:var(--brand-soft)}
.spec-chip.active{background:var(--brand);border-color:var(--brand);color:#fff}
.spec-row{display:flex;justify-content:space-between;gap:24px;padding:16px 0;border-bottom:1px solid var(--line);font-size:15px}
.spec-row:first-child{border-top:1px solid var(--line)}
.spec-row dt{color:var(--muted)}
.spec-row dd{margin:0;font-family:var(--mono);font-weight:600;color:var(--ink);text-align:right}
.spec-foot{margin-top:20px;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:14px;flex-wrap:wrap}

/* 评价墙 */
.review-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.rating-block{display:flex;align-items:center;gap:12px}
.stars{color:var(--star);letter-spacing:2px;font-size:16px}
.rating-num{font-family:var(--mono);font-weight:600;font-size:20px;color:var(--ink)}
.rating-note{font-size:12px;color:var(--muted)}
.review-cols{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.review-col{display:flex;flex-direction:column;gap:24px}
.review-col.offset{margin-top:24px}
.review-card{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:24px;box-shadow:var(--shadow-1);transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.review-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.review-card .demo-tag{
  position:absolute;top:14px;right:14px;font-size:11px;padding:2px 8px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-weight:600;
}
.review-meta{display:flex;align-items:center;gap:10px;margin:8px 0 4px;font-size:13px;color:var(--muted)}
.review-meta .name{color:var(--ink);font-weight:600;font-size:14px}
.review-meta .date{font-family:var(--mono);font-size:12px}
.review-card p{font-size:14.5px;color:var(--ink-2);line-height:1.75;margin-top:10px}
.tag-chip{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;font-size:12px;
  background:var(--brand-soft);color:var(--brand);font-weight:600;
}

/* 下载区 */
.dl-center{text-align:center;max-width:820px;margin:0 auto}
.dl-center h2{font-size:34px;margin-bottom:12px}
.dl-center .dl-desc{color:rgba(244,241,234,.7);font-size:15px;margin-bottom:32px}
.dl-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.dl-meta{margin-top:22px;font-size:13px;color:rgba(244,241,234,.6);font-family:var(--mono)}
.dl-meta span{color:var(--lime)}

/* CMS 列表 */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-wide-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;height:100%;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(255,107,61,.2);text-decoration:none}
.post-thumb{background:var(--ph);overflow:hidden}
.post-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease-out}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--ink)}
.post-body p{font-size:14px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:6px}
.post-foot time{font-family:var(--mono);font-size:12px;color:var(--muted)}
.post-card.wide{flex-direction:row;align-items:stretch}
.post-card.wide .post-thumb{flex:0 0 42%}
.post-card.wide .post-thumb img{height:100%;aspect-ratio:auto;min-height:190px}
.empty-state{
  min-height:240px;border:1px dashed var(--line);border-radius:var(--radius-md);background:var(--card);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:32px;
}
.empty-state svg{width:48px;height:48px;stroke:var(--muted)}
.empty-state p{color:var(--muted);font-size:14px}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:260px 1fr;gap:48px;align-items:start}
.faq-side h2{font-size:32px;margin-bottom:12px}
.faq-side p{font-size:14px;color:var(--muted)}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--radius-md);background:var(--card);margin-bottom:14px;
  overflow:hidden;box-shadow:var(--shadow-1);
}
.accordion-item:last-child{margin-bottom:0}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--ink);background:var(--card);padding:20px 24px;box-shadow:none;
}
.accordion-button:not(.collapsed){background:var(--brand-soft);color:var(--ink);box-shadow:none}
.accordion-button:focus{box-shadow:none;border-color:transparent}
.accordion-button::after{
  background-image:none;content:"+";font-size:22px;line-height:1;color:var(--brand);
  display:flex;align-items:center;justify-content:center;width:auto;height:auto;transform:none;
}
.accordion-button:not(.collapsed)::after{content:"−";transform:none}
.accordion-body{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--muted);max-width:720px}
.accordion-body strong{color:var(--ink)}

/* 尾部 CTA */
.cta-band{
  border:2px solid var(--brand);border-radius:var(--radius-lg);background:var(--card);
  padding:48px;display:grid;grid-template-columns:1fr 320px;gap:36px;align-items:center;
  box-shadow:var(--shadow-1);
}
.cta-band h2{font-size:30px;margin-bottom:12px}
.cta-band p{color:var(--muted);font-size:15px;margin-bottom:24px;max-width:480px}
.cta-band img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-md);background:var(--ph)}

/* 页脚 */
.site-footer{background:var(--ink);color:var(--dark-text);padding:72px 0 0;position:relative;overflow:hidden}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(244,241,234,.06) 1px,transparent 1px);background-size:18px 18px;
}
.footer-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-mark{color:var(--dark-text)}
.footer-brand .brand-mark span{color:var(--lime)}
.footer-brand .brand-sub{color:rgba(244,241,234,.5)}
.footer-brand p{font-size:14px;color:rgba(244,241,234,.66);margin-top:14px;line-height:1.7;max-width:260px}
.footer-brand a{color:var(--lime);font-size:14px;font-family:var(--mono)}
.footer-brand a:hover{color:var(--lime);text-decoration:underline}
.footer-col h4{font-size:14px;color:var(--dark-text);margin-bottom:16px;font-weight:600;letter-spacing:.04em}
.footer-col li{margin-bottom:10px}
.footer-col a,.footer-col span{font-size:14px;color:rgba(244,241,234,.66);display:inline-block;transition:all .16s ease-out}
.footer-col a:hover{color:var(--lime);transform:translateX(2px);text-decoration:none}
.footer-bottom{
  position:relative;z-index:1;margin-top:56px;border-top:1px solid rgba(244,241,234,.12);
  padding:24px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(244,241,234,.5);
}
.footer-bottom .rec{font-family:var(--mono)}

/* offcanvas */
.offcanvas.offcanvas-end{background:var(--bg);border-left:1px solid var(--line)}
.offcanvas-header{border-bottom:1px solid var(--line);padding:20px 22px}
.offcanvas-body{padding:22px}
.oc-group-title{font-size:12px;letter-spacing:.1em;color:var(--muted);margin:18px 0 10px}
.oc-link{
  display:block;padding:12px 14px;border-radius:12px;font-size:15px;color:var(--ink);border:1px solid transparent;
}
.oc-link:hover{background:var(--brand-soft);color:var(--brand);text-decoration:none}
.oc-link.active{background:var(--brand);color:#fff;font-weight:600}
.oc-cta{margin-top:24px}
.oc-cta .btn-brand{width:100%}

/* 响应式 */
@media (max-width:1199.98px){
  .hero h1{font-size:42px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .chip-nav{display:none}
  .nav-toggle{display:inline-flex}
  .nav-cta{padding:9px 16px;font-size:13px}
  .nav-wrap{gap:16px;min-height:68px}
  .hero{padding:56px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:38px}
  .hero-sub{max-width:none}
  .hero-float{position:static;margin-top:16px;display:inline-block}
  .slider-layout{grid-template-columns:1fr}
  .shot-thumbs{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px}
  .thumb-btn{border-left:0;border-bottom:3px solid transparent;white-space:nowrap}
  .thumb-btn.active{border-left-color:transparent;border-bottom-color:var(--lime)}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .cta-band{grid-template-columns:1fr;padding:36px}
  .cta-band img{max-width:420px}
  .value-grid{grid-template-columns:1fr}
  .value-grid > .value-card:nth-child(2),
  .value-grid > .value-card:nth-child(4){transform:none}
  .value-grid > .value-card:nth-child(2):hover,
  .value-grid > .value-card:nth-child(4):hover{transform:translateY(-3px)}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .post-wide-grid{grid-template-columns:1fr}
}
@media (max-width:767.98px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .sec-head h2{font-size:26px}
  .hero h1{font-size:32px}
  .hero-sub{font-size:16px}
  .hero-actions .btn-brand,.hero-actions .btn-outline-ink{width:100%}
  .hero-stats{gap:10px;font-size:12px}
  .review-cols{grid-template-columns:1fr;gap:16px}
  .review-col.offset{margin-top:0}
  .post-grid{grid-template-columns:1fr}
  .post-card.wide{flex-direction:column}
  .post-card.wide .post-thumb{flex:none}
  .post-card.wide .post-thumb img{aspect-ratio:16/10;min-height:0}
  .dl-btns .btn-brand,.dl-btns .btn-ghost{width:100%}
  .dl-center h2,.cta-band h2,.faq-side h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .spec-row{flex-direction:column;gap:4px}
  .spec-row dd{text-align:left}
  .spec-chip{padding:8px 16px;font-size:13px}
}
@media (max-width:519.98px){
  .hero h1{font-size:28px}
  .hero-float{width:100%}
  .sec-head h2{font-size:23px}
  .value-card{padding:20px;gap:14px}
  .review-card,.post-body{padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  .value-card:hover,.post-card:hover,.review-card:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --brand:#FF6B3D;
  --brand-deep:#E85A2C;
  --dark:#221A2E;
  --lime:#C8F25C;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --border:#E6E0D6;
  --text:#1C1720;
  --muted:#5F5866;
  --light-text:#F4F1EA;
  --star:#FFC24B;
  --error:#D8482B;
  --chip-bg:#FFEFE8;
  --hold:#EFEADF;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(34,26,46,.06),0 12px 32px -14px rgba(34,26,46,.16);
  --shadow-2:0 2px 4px rgba(34,26,46,.08),0 20px 40px -16px rgba(34,26,46,.24);
  --bs-primary:#FF6B3D;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#1C1720;
  --bs-border-color:#E6E0D6;
  --bs-border-radius:16px;
  --bs-link-color:#1C1720;
  --bs-link-hover-color:#FF6B3D;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--text);text-decoration:none;transition:color .16s ease-out}
a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:-.01em}
h1{font-size:44px;font-weight:800;line-height:1.15;letter-spacing:-.02em}
h2{font-size:34px;font-weight:700;line-height:1.25}
h3{font-size:21px;font-weight:600;line-height:1.4}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.mono{font-family:ui-monospace,"SF Mono",Consolas,monospace;font-weight:600;letter-spacing:.01em}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--bg);
  border-bottom:1px solid var(--border);
  transition:box-shadow .18s ease-out;
}
.site-header.is-scrolled{box-shadow:0 1px 2px rgba(34,26,46,.06)}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:76px;flex-wrap:nowrap;
}
.brand{display:flex;flex-direction:column;line-height:1.1;flex:0 0 auto}
.brand-mark{
  font-size:22px;font-weight:800;color:var(--dark);letter-spacing:-.02em;
}
.brand-mark span{color:var(--brand)}
.brand-sub{
  font-size:12px;font-weight:600;color:var(--muted);
  letter-spacing:.18em;margin-top:3px;
}
.brand:hover{text-decoration:none;color:var(--dark)}
.chip-nav{
  display:flex;align-items:center;gap:8px;
  flex:1 1 auto;min-width:0;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;
  display:inline-block;
  padding:10px 18px;
  font-size:14px;font-weight:500;
  color:var(--text);
  border:1px solid var(--border);
  border-radius:999px;
  background:transparent;
  white-space:nowrap;
  transition:background .16s ease-out,color .16s ease-out,border-color .16s ease-out;
}
.chip:hover{
  background:var(--chip-bg);color:var(--brand);border-color:var(--chip-bg);
  text-decoration:none;
}
.chip.active{
  background:var(--brand);border-color:var(--brand);color:#FFFFFF;font-weight:600;
}
.chip.active:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#FFFFFF}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);
  border-radius:12px;background:var(--card);color:var(--dark);
  align-items:center;justify-content:center;font-size:18px;
}
.nav-toggle:hover{background:var(--chip-bg);color:var(--brand);border-color:var(--chip-bg)}

/* ============ 按钮 ============ */
.btn-brand,.btn-ghost,.btn-dark-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 28px;border-radius:var(--radius-btn);
  border:1px solid transparent;cursor:pointer;
  transition:background .16s ease-out,color .16s ease-out,border-color .16s ease-out,transform .16s ease-out,box-shadow .16s ease-out;
}
.btn-brand{background:var(--brand);color:#FFFFFF;box-shadow:var(--shadow-1)}
.btn-brand:hover{background:var(--brand-deep);color:#FFFFFF;text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-brand:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-ghost{background:transparent;color:var(--dark);border-color:var(--dark)}
.btn-ghost:hover{background:var(--dark);color:var(--light-text);text-decoration:none}
.btn-dark-outline{background:transparent;color:var(--light-text);border-color:rgba(244,241,234,.4)}
.btn-dark-outline:hover{color:var(--lime);border-color:var(--lime);text-decoration:none}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section-white{background:var(--card)}
.section-cream{background:var(--bg)}
.section-dark{background:var(--dark);color:var(--light-text);position:relative;overflow:hidden}
.section-dark h2,.section-dark h3{color:var(--light-text)}
.section-dark::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(244,241,234,.14) 1px,transparent 1px);
  background-size:22px 22px;opacity:.35;pointer-events:none;
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.section-head p{color:var(--muted);margin-top:10px;max-width:620px}
.h2-bar{position:relative;padding-left:18px}
.h2-bar::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:6px;
  border-radius:3px;background:var(--brand);
}
.link-more{font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap}
.link-more:hover{color:var(--brand-deep);text-decoration:underline}

/* ============ 面包屑 ============ */
.breadcrumb-bar{padding:24px 0 0;background:var(--bg)}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted)}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:var(--border)}
.crumbs .current{color:var(--muted);font-weight:500}

/* ============ 窄版 Hero ============ */
.hero-narrow{background:var(--bg);padding:32px 0 72px;position:relative;overflow:hidden}
.hero-narrow::after{
  content:"";position:absolute;right:-140px;top:-60px;width:340px;height:340px;
  background:var(--lime);opacity:.16;
  transform:rotate(45deg);border-radius:56px;pointer-events:none;
}
.hero-narrow .hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  min-height:300px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--brand);background:var(--chip-bg);
  border-radius:999px;padding:6px 14px;margin-bottom:20px;
}
.hero-narrow h1{font-size:40px;max-width:560px}
.hero-narrow h1 .key{position:relative;white-space:nowrap}
.hero-narrow h1 .key::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:3px;
  border-radius:2px;background:var(--brand);
}
.hero-lead{margin-top:22px;font-size:17px;line-height:1.7;color:var(--muted);max-width:520px}
.hero-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:26px;font-size:13px;color:var(--muted);
}
.hero-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--border)}
.hero-meta .num{font-family:ui-monospace,"SF Mono",Consolas,monospace;font-weight:600;color:var(--dark)}
.hero-figure{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1);background:var(--hold);aspect-ratio:16/9}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure .tag-float{
  position:absolute;left:18px;bottom:18px;
  background:var(--card);border-radius:12px;padding:8px 14px;
  font-size:12px;font-weight:600;color:var(--dark);box-shadow:var(--shadow-1);
}

/* ============ 步骤时间线 ============ */
.timeline{position:relative;margin-top:8px;padding-left:8px}
.timeline::before{
  content:"";position:absolute;left:23px;top:12px;bottom:18px;width:3px;
  background:var(--brand);border-radius:2px;
}
.tl-item{position:relative;display:flex;gap:22px;padding:0 0 34px 0}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:relative;z-index:1;flex:0 0 auto;
  width:34px;height:34px;border-radius:50%;
  background:var(--dark);color:var(--lime);
  display:flex;align-items:center;justify-content:center;
  font-family:ui-monospace,"SF Mono",Consolas,monospace;
  font-size:13px;font-weight:600;
  border:4px solid var(--card);margin-left:-0px;
  box-shadow:0 0 0 3px var(--card);
}
.tl-item:nth-child(odd) .tl-dot{background:var(--dark)}
.tl-body{
  flex:1 1 auto;background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-md);padding:22px 24px;box-shadow:var(--shadow-1);
  transition:transform .16s ease-out,box-shadow .16s ease-out,border-color .16s ease-out;
}
.tl-body:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(255,107,61,.2)}
.tl-body h3{font-size:19px;margin-bottom:8px}
.tl-body p{color:var(--muted);font-size:15px;line-height:1.7}
.tl-body .tl-note{
  display:inline-block;margin-top:12px;font-size:13px;color:var(--brand);
  background:var(--chip-bg);border-radius:999px;padding:4px 12px;font-weight:600;
}
.tl-tag{font-size:12px;color:var(--muted);font-family:ui-monospace,"SF Mono",Consolas,monospace}

/* ============ 三张图文卡 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.info-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .16s ease-out,box-shadow .16s ease-out,border-color .16s ease-out;
  display:flex;flex-direction:column;
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(255,107,61,.2)}
.card-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--hold)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.info-card:hover .card-thumb img{transform:scale(1.03)}
.card-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-body h3{font-size:19px}
.card-body p{font-size:14px;color:var(--muted);line-height:1.7}
.tag{
  display:inline-block;font-size:12px;font-weight:600;color:var(--brand);
  background:var(--chip-bg);border-radius:999px;padding:4px 10px;align-self:flex-start;
}
.tag-lime{background:rgba(200,242,92,.18);color:#6B7A22}

/* ============ 提示条 ============ */
.notice{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-md);
  padding:22px 24px;box-shadow:var(--shadow-1);margin-top:32px;
}
.notice .ico{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;
  background:var(--chip-bg);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.notice h4{font-size:16px;margin-bottom:4px}
.notice p{font-size:14px;color:var(--muted)}

/* ============ 下载区块 ============ */
.download-block{padding:88px 0;background:var(--dark);color:var(--light-text);position:relative;overflow:hidden}
.download-block::before{
  content:"";position:absolute;right:-100px;bottom:-120px;width:320px;height:320px;
  background:var(--lime);opacity:.12;transform:rotate(45deg);border-radius:48px;
}
.download-inner{position:relative;z-index:1;text-align:center;max-width:840px;margin:0 auto}
.download-inner h2{color:var(--light-text);font-size:32px}
.download-inner .lead{margin-top:14px;font-size:16px;color:rgba(244,241,234,.78)}
.dl-btns{display:flex;flex-wrap:wrap;justify-content:center;gap:16px;margin-top:34px}
.dl-btns .btn-brand{padding:16px 32px}
.dl-note{margin-top:26px;font-size:13px;color:rgba(244,241,234,.62)}
.dl-note .mono{color:var(--lime)}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:280px 1fr;gap:48px;align-items:start}
.faq-side{position:sticky;top:96px}
.faq-side p{margin-top:12px;color:var(--muted);font-size:15px}
.accordion-item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-md);
  margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-1);
}
.accordion-button{
  width:100%;text-align:left;background:var(--card);color:var(--text);
  border:0;padding:20px 24px;font-size:16px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer;
  transition:background .16s ease-out;
}
.accordion-button:hover{background:var(--chip-bg);color:var(--brand)}
.accordion-button::after{
  content:"+";font-family:ui-monospace,monospace;font-size:20px;font-weight:600;
  color:var(--brand);line-height:1;transition:transform .16s ease-out;
}
.accordion-button[aria-expanded="true"]::after{content:"–"}
.accordion-panel{max-height:0;overflow:hidden;transition:max-height .2s ease-out}
.accordion-panel-inner{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--muted);max-width:720px}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:var(--light-text);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand-mark{color:var(--light-text);font-size:24px}
.footer-brand .brand-sub{color:rgba(244,241,234,.6)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.7;color:rgba(244,241,234,.66);max-width:300px}
.footer-brand a{display:inline-block;margin-top:14px;font-size:14px;color:var(--lime)}
.footer-col h4{font-size:15px;color:var(--light-text);margin-bottom:16px;font-weight:600}
.footer-col ul li{margin-bottom:10px;font-size:14px;color:rgba(244,241,234,.66)}
.footer-col ul li a{color:rgba(244,241,234,.66);transition:color .16s ease-out,transform .16s ease-out;display:inline-block}
.footer-col ul li a:hover{color:var(--lime);text-decoration:none;transform:translateX(2px)}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(244,241,234,.12);
  padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:rgba(244,241,234,.55);
}
.footer-bottom .rec{color:rgba(244,241,234,.42)}

/* ============ 抽屉 ============ */
.offcanvas{background:var(--bg);border-left:1px solid var(--border)}
.offcanvas-header{border-bottom:1px solid var(--border);padding:20px 24px}
.offcanvas-title{font-size:17px;font-weight:700}
.offcanvas-body{padding:20px 24px 28px}
.drawer-list li{margin-bottom:10px}
.drawer-list a{
  display:block;padding:12px 16px;background:var(--card);
  border:1px solid var(--border);border-radius:12px;
  font-size:15px;font-weight:500;color:var(--text);
}
.drawer-list a:hover{border-color:var(--chip-bg);background:var(--chip-bg);color:var(--brand);text-decoration:none}
.drawer-list a.active{background:var(--brand);border-color:var(--brand);color:#FFFFFF}
.drawer-cta{margin-top:20px}
.drawer-cta .btn-brand{width:100%}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  h1{font-size:38px}
  h2{font-size:30px}
  .hero-narrow h1{font-size:34px}
}
@media (max-width:991px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .header-inner{min-height:68px;gap:16px}
  .chip-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-brand{padding:10px 16px;font-size:14px}
  .hero-narrow{padding:28px 0 56px}
  .hero-narrow .hero-grid{grid-template-columns:1fr;gap:32px;min-height:0}
  .hero-narrow h1{font-size:32px;max-width:none}
  .hero-figure{aspect-ratio:16/9}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .faq-side{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .timeline::before{left:19px}
  .tl-dot{width:30px;height:30px;font-size:12px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  h2{font-size:24px}
  .hero-narrow h1{font-size:28px}
  .hero-lead{font-size:16px}
  .hero-narrow h1 .key{white-space:normal}
  .card-grid{grid-template-columns:1fr}
  .download-block{padding:56px 0}
  .dl-btns{flex-direction:column}
  .dl-btns .btn-brand,.dl-btns .btn-dark-outline{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
  .tl-body{padding:18px}
  .notice{flex-direction:column;gap:12px}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .brand-mark{font-size:19px}
  .header-actions .btn-brand{display:none}
  .tl-item{gap:16px}
  .timeline::before{left:17px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .info-card:hover,.tl-body:hover,.btn-brand:hover{transform:none}
}

/* roulang page: article */
:root{
  --bs-primary:#FF6B3D;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#1C1720;
  --bs-border-color:#E6E0D6;
  --bs-border-radius:16px;
  --bs-link-color:#1C1720;
  --bs-link-hover-color:#FF6B3D;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;

  --brand:#FF6B3D;
  --brand-deep:#E85A2C;
  --ink:#221A2E;
  --lime:#C8F25C;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E6E0D6;
  --text:#1C1720;
  --muted:#5F5866;
  --light:#F4F1EA;
  --soft:#FFEFE8;
  --ph:#EFEADF;
  --star:#FFC24B;
  --danger:#D8482B;
  --radius-lg:24px;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 1px 2px rgba(34,26,46,.06),0 12px 32px -14px rgba(34,26,46,.16);
  --shadow-hover:0 2px 4px rgba(34,26,46,.08),0 20px 40px -16px rgba(34,26,46,.24);
  --mono:ui-monospace,"SF Mono",Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--text);text-decoration:none;transition:color .16s ease-out;}
a:hover{color:var(--brand);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
.container{max-width:1200px;padding-left:32px;padding-right:32px;margin-left:auto;margin-right:auto;}
.mono{font-family:var(--mono);font-weight:600;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1035;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  transition:box-shadow .16s ease-out;
}
.site-header.scrolled{box-shadow:0 1px 2px rgba(34,26,46,.06);}
.header-inner{
  display:grid;
  grid-template-columns:auto 1fr auto auto;
  align-items:center;
  gap:32px;
  min-height:78px;
}
.brand{display:flex;align-items:baseline;gap:9px;text-decoration:none;line-height:1;}
.brand-mark{font-size:22px;font-weight:800;letter-spacing:-.02em;color:var(--ink);}
.brand-mark span{color:var(--brand);}
.brand-sub{font-size:12px;letter-spacing:.1em;color:var(--muted);font-weight:500;}
.chip-nav{
  display:flex;gap:8px;
  justify-self:center;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  padding:4px 2px;
  max-width:100%;
}
.chip-nav::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:38px;padding:0 18px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:14px;font-weight:500;
  color:var(--ink);
  background:transparent;
  white-space:nowrap;
  transition:background .16s ease-out,color .16s ease-out,border-color .16s ease-out;
}
.chip:hover{background:var(--soft);color:var(--brand);border-color:transparent;}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff;}
.header-cta{justify-self:end;}

/* ---------- Buttons ---------- */
.btn-brand,.btn-outline-ink,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 28px;border-radius:10px;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .16s ease-out,color .16s ease-out,border-color .16s ease-out,transform .16s ease-out,box-shadow .16s ease-out;
}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 1px 2px rgba(34,26,46,.06),0 12px 32px -14px rgba(34,26,46,.16);}
.btn-brand:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-brand:active{transform:translateY(0);}
.btn-outline-ink{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-outline-ink:hover{background:var(--ink);color:var(--light);}
.btn-ghost{background:transparent;border-color:rgba(244,241,234,.4);color:var(--light);}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime);}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;padding:0;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;color:var(--ink);
  transition:border-color .16s ease-out,color .16s ease-out;
}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- Drawer ---------- */
.site-drawer{background:var(--bg);width:330px;border-left:1px solid var(--line);}
.site-drawer .offcanvas-header{padding:20px 20px 12px;}
.site-drawer .offcanvas-body{padding:8px 20px 28px;}
.drawer-list{list-style:none;margin:0 0 22px;padding:0;display:flex;flex-direction:column;gap:8px;}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;font-size:15px;color:var(--ink);
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  transition:border-color .16s ease-out,color .16s ease-out;
}
.drawer-list a:hover{border-color:var(--brand);color:var(--brand);}
.drawer-list a.active{background:var(--soft);border-color:var(--soft);color:var(--brand);font-weight:600;}

/* ---------- Article shell ---------- */
.article-shell{padding:28px 0 96px;}
.breadcrumb-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--muted);margin-bottom:24px;
}
.breadcrumb-line a{color:var(--muted);}
.breadcrumb-line a:hover{color:var(--brand);text-decoration:underline;}
.breadcrumb-line .sep{color:var(--line);}
.breadcrumb-line .current{color:var(--muted);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.article-head{padding-bottom:32px;border-bottom:1px solid var(--line);}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:999px;
  background:var(--soft);color:var(--brand);
  font-size:12px;font-weight:600;
}
.article-title{
  margin:16px 0 20px;
  font-size:38px;font-weight:800;line-height:1.2;letter-spacing:-.02em;
  color:var(--ink);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-family:var(--mono);font-size:13px;color:var(--muted);font-weight:500;
}
.article-meta .sep{color:var(--line);}

.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:48px;
  align-items:start;
  margin-top:40px;
}
.article-main{min-width:0;}

/* ---------- Article body ---------- */
.article-body{
  max-width:760px;
  font-size:16px;line-height:1.85;color:var(--text);
}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{
  font-size:26px;font-weight:700;line-height:1.3;color:var(--ink);
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--brand);
  scroll-margin-top:100px;
}
.article-body h3{
  font-size:20px;font-weight:600;line-height:1.4;color:var(--ink);
  margin:28px 0 12px;scroll-margin-top:100px;
}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink);margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;}
.article-body li{margin-bottom:8px;line-height:1.9;}
.article-body blockquote{
  margin:24px 0;padding:18px 20px;
  background:var(--surface);
  border-left:4px solid var(--lime);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;margin:8px 0 20px;height:auto;}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-deep);}
.article-body table{
  width:100%;border-collapse:collapse;margin:20px 0;
  border-top:2px solid var(--ink);
  font-size:15px;
}
.article-body th,.article-body td{
  padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;
}
.article-body th{font-weight:600;color:var(--ink);background:var(--surface);}
.article-body tbody tr:nth-child(even){background:var(--bg);}
.article-body code{
  font-family:var(--mono);font-size:14px;
  background:var(--bg);border:1px solid var(--line);
  border-radius:8px;padding:2px 6px;
}
.article-body pre{
  background:var(--ink);color:var(--light);
  font-family:var(--mono);font-size:14px;line-height:1.7;
  padding:18px 20px;border-radius:12px;overflow-x:auto;margin:20px 0;
}
.article-body pre code{background:transparent;border:0;padding:0;color:inherit;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

/* ---------- Empty state ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-height:280px;gap:14px;text-align:center;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius);
  padding:40px 24px;color:var(--muted);
}
.empty-state .empty-title{font-size:18px;font-weight:700;color:var(--ink);}
.empty-state p{margin:0;font-size:14px;}

/* ---------- Article footer blocks ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:40px 0 0;padding-top:28px;border-top:1px solid var(--line);max-width:760px;}
.tag-row .chip{height:32px;padding:0 14px;font-size:13px;}

.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px;max-width:760px;}
.post-nav-card{
  display:block;padding:20px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:border-color .16s ease-out,transform .16s ease-out,box-shadow .16s ease-out;
}
.post-nav-card:hover{border-color:rgba(255,107,61,.4);transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.post-nav-dir{display:block;font-size:12px;font-weight:600;color:var(--brand);letter-spacing:.04em;margin-bottom:8px;}
.post-nav-title{display:block;font-size:15px;font-weight:600;line-height:1.6;color:var(--ink);}

.related-block{margin-top:56px;}
.related-block h2{font-size:24px;font-weight:700;color:var(--ink);margin:0 0 20px;padding-left:14px;border-left:4px solid var(--brand);}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform .16s ease-out,box-shadow .16s ease-out,border-color .16s ease-out;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(255,107,61,.4);}
.rel-card figure{margin:0;aspect-ratio:16/10;background:var(--ph);overflow:hidden;}
.rel-card figure img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.rel-card:hover figure img{transform:scale(1.03);}
.rel-card .rel-body{padding:20px;}
.rel-card .rel-title{font-size:16px;font-weight:600;line-height:1.6;color:var(--ink);margin:12px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-card p{margin:0;font-size:14px;line-height:1.7;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* ---------- Sidebar ---------- */
.article-side{position:sticky;top:96px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);margin-bottom:20px;
}
.side-card h3{
  display:flex;align-items:center;gap:9px;
  font-size:15px;font-weight:700;color:var(--ink);margin:0 0 16px;
}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--brand);}
.side-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 0;font-size:14px;color:var(--text);
  border-bottom:1px dashed var(--line);
  transition:color .16s ease-out,padding-left .16s ease-out;
}
.side-list li:last-child a{border-bottom:0;}
.side-list a:hover{color:var(--brand);padding-left:4px;}
.side-list .idx{font-family:var(--mono);font-size:12px;color:var(--muted);}
.side-meta{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;}
.side-meta li{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);}
.side-meta .val{font-family:var(--mono);font-weight:600;color:var(--ink);font-size:13px;}
.badge-ver{
  display:inline-flex;align-items:center;
  background:var(--ink);color:var(--lime);
  font-family:var(--mono);font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:999px;
}
.side-card .btn-outline-ink,.side-card .btn-brand{width:100%;padding:13px 18px;font-size:14px;}

/* ---------- CTA strip ---------- */
.cta-wrap{padding:0 0 96px;}
.cta-strip{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  background:var(--surface);
  border:2px solid var(--brand);
  border-radius:var(--radius-lg);
  padding:36px 40px;
  box-shadow:var(--shadow);
}
.cta-strip h2{font-size:26px;font-weight:800;color:var(--ink);margin:0 0 8px;letter-spacing:-.01em;}
.cta-strip p{margin:0;font-size:15px;color:var(--muted);max-width:560px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:var(--light);padding:72px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand-mark{font-size:22px;font-weight:800;color:var(--light);letter-spacing:-.02em;}
.footer-brand .brand-mark span{color:var(--brand);}
.footer-brand .brand-sub{font-size:12px;letter-spacing:.1em;color:rgba(244,241,234,.6);margin-top:6px;}
.footer-brand p{margin:16px 0 12px;font-size:14px;line-height:1.7;color:rgba(244,241,234,.7);max-width:280px;}
.footer-brand a{font-size:13px;color:rgba(244,241,234,.75);font-family:var(--mono);}
.footer-brand a:hover{color:var(--lime);}
.footer-col h4{font-size:14px;font-weight:600;color:var(--light);margin:0 0 16px;letter-spacing:.04em;}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.footer-col li a,.footer-col li span{font-size:14px;color:rgba(244,241,234,.72);line-height:1.6;}
.footer-col li a:hover{color:var(--lime);padding-left:2px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  border-top:1px solid rgba(244,241,234,.12);
  padding:20px 0;font-size:13px;color:rgba(244,241,234,.55);
}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:36px;}
}
@media (max-width:991.98px){
  .header-inner{
    grid-template-columns:auto 1fr auto;
    grid-template-areas:
      "brand cta toggle"
      "nav nav nav";
    row-gap:10px;
    gap:12px;
    padding-top:14px;
    padding-bottom:12px;
    min-height:0;
  }
  .brand{grid-area:brand;}
  .header-cta{grid-area:cta;justify-self:end;padding:11px 18px;font-size:14px;}
  .menu-toggle{grid-area:toggle;display:inline-flex;}
  .chip-nav{grid-area:nav;justify-self:start;width:100%;justify-content:flex-start;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .article-side{position:static;top:auto;}
  .article-title{font-size:32px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-strip{padding:28px;}
}
@media (max-width:767.98px){
  .container{padding-left:20px;padding-right:20px;}
  .article-shell{padding:20px 0 56px;}
  .article-title{font-size:28px;line-height:1.25;}
  .article-body h2{font-size:22px;margin-top:32px;}
  .article-body h3{font-size:18px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .post-nav{grid-template-columns:minmax(0,1fr);}
  .rel-grid{grid-template-columns:minmax(0,1fr);}
  .cta-strip{flex-direction:column;align-items:flex-start;gap:20px;padding:24px;}
  .cta-strip h2{font-size:22px;}
  .cta-strip .btn-brand{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:36px;}
  .site-footer{padding-top:52px;}
  .breadcrumb-line .current{max-width:100%;}
  .article-meta{font-size:12px;}
}
@media (max-width:575.98px){
  .brand-mark{font-size:19px;}
  .brand-sub{font-size:11px;}
  .header-cta{padding:10px 14px;font-size:13px;}
  .chip{height:34px;padding:0 14px;font-size:13px;}
  .article-title{font-size:25px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --brand:#FF6B3D;
  --brand-deep:#E85A2C;
  --brand-tint:#FFEFE8;
  --ink:#221A2E;
  --text:#1C1720;
  --muted:#5F5866;
  --lime:#C8F25C;
  --paper:#F7F4EE;
  --card:#FFFFFF;
  --line:#E6E0D6;
  --star:#FFC24B;
  --danger:#D8482B;
  --light-text:#F4F1EA;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --r-xs:10px;
  --shadow-1:0 1px 2px rgba(34,26,46,.06),0 12px 32px -14px rgba(34,26,46,.16);
  --shadow-2:0 2px 4px rgba(34,26,46,.08),0 20px 40px -16px rgba(34,26,46,.24);
  --bs-primary:#FF6B3D;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#1C1720;
  --bs-border-color:#E6E0D6;
  --bs-border-radius:12px;
  --bs-link-color:#1C1720;
  --bs-link-hover-color:#FF6B3D;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--text);text-decoration:none;transition:color .16s ease-out}
a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px;width:100%}
.mono{font-family:ui-monospace,"SF Mono",Consolas,"Courier New",monospace;font-weight:600;letter-spacing:.01em}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease-out;
}
.site-header.scrolled{box-shadow:0 1px 2px rgba(34,26,46,.06)}
.nav-wrap{
  display:flex;align-items:center;gap:28px;
  min-height:76px;flex-wrap:wrap;
}
.brand{display:flex;align-items:baseline;gap:8px;flex:0 0 auto}
.brand:hover{text-decoration:none;color:var(--ink)}
.brand-mark{
  font-size:22px;font-weight:800;color:var(--ink);letter-spacing:.02em;line-height:1.1;
}
.brand-mark span{color:var(--brand)}
.brand-sub{
  font-size:12px;color:var(--muted);letter-spacing:.08em;font-weight:500;
}
.chip-nav{
  display:flex;align-items:center;gap:8px;flex:1 1 auto;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  padding:6px 2px;
}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;white-space:nowrap;
  font-size:14px;font-weight:500;color:var(--ink);
  padding:9px 18px;border-radius:999px;
  border:1px solid var(--line);background:transparent;
  transition:background .16s ease-out,color .16s ease-out,border-color .16s ease-out;
}
.chip:hover{background:var(--brand-tint);color:var(--brand);border-color:var(--brand-tint);text-decoration:none}
.chip.active{background:var(--brand);border-color:var(--brand);color:#FFFFFF;font-weight:600}
.chip.active:hover{background:var(--brand);color:#FFFFFF}
.nav-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;margin-left:auto}
.nav-burger{
  display:none;width:42px;height:42px;border-radius:var(--r-xs);
  border:1px solid var(--line);background:var(--card);padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;
}
.nav-burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}

/* ---------- 按钮 ---------- */
.btn-brand,.btn-ghost,.btn-dark-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 28px;border-radius:var(--r-xs);
  border:1px solid transparent;cursor:pointer;
  transition:background .16s ease-out,color .16s ease-out,transform .16s ease-out,box-shadow .16s ease-out,border-color .16s ease-out;
}
.btn-brand{background:var(--brand);color:#FFFFFF;box-shadow:var(--shadow-1)}
.btn-brand:hover{background:var(--brand-deep);color:#FFFFFF;text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-brand:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-dark-outline{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-dark-outline:hover{background:var(--ink);color:var(--light-text);text-decoration:none}
.btn-ghost{background:transparent;color:var(--light-text);border-color:rgba(244,241,234,.4)}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime);text-decoration:none}
.nav-cta{padding:11px 22px;font-size:14px}

/* ---------- 页头 ---------- */
.page-head{background:var(--card);border-bottom:1px solid var(--line);padding:64px 0 40px}
.page-head h1{
  margin:0 0 18px;font-size:44px;font-weight:800;line-height:1.15;letter-spacing:-.02em;color:var(--ink);
}
.page-head h1 em{font-style:normal;color:var(--brand)}
.page-lead{margin:0;font-size:18px;line-height:1.7;color:var(--muted);max-width:760px}
.toc-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.toc-chips a{
  font-size:14px;font-weight:500;color:var(--ink);
  padding:8px 16px;border-radius:999px;background:var(--paper);
  border:1px solid var(--line);
  transition:background .16s ease-out,color .16s ease-out,border-color .16s ease-out;
}
.toc-chips a:hover{background:var(--brand-tint);border-color:var(--brand-tint);color:var(--brand);text-decoration:none}
.toc-chips a .mono{color:var(--brand);margin-right:6px;font-size:12px}

/* ---------- 交错图文 ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.feature-rows{background:var(--card)}
.feature-rows .container{padding-top:8px;padding-bottom:8px}
.row-item{
  display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;
  padding:56px 0;border-bottom:1px dashed var(--line);
}
.row-item:last-child{border-bottom:0}
.row-item:nth-child(even){grid-template-columns:7fr 5fr}
.row-item:nth-child(even) .row-media{order:2}
.row-media{border-radius:var(--r-md);overflow:hidden;background:#EFEADF;box-shadow:var(--shadow-1)}
.row-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  transition:transform .3s ease-out;
}
.row-item:hover .row-media img{transform:scale(1.03)}
.row-body h2,.row-body h3{
  margin:14px 0 12px;font-size:24px;font-weight:700;line-height:1.35;color:var(--ink);
}
.row-body p{margin:0 0 18px;font-size:16px;line-height:1.8;color:var(--muted);max-width:560px}
.tag{
  display:inline-block;font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:999px;
  background:var(--brand-tint);color:var(--brand);
}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--ink);
  border-bottom:2px solid var(--brand);padding-bottom:2px;
}
.link-more:hover{color:var(--brand);text-decoration:none}
.link-more::after{content:"→";font-size:13px}

/* ---------- 2×2 特性小卡 ---------- */
.feature-grid{background:var(--paper)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{
  margin:0;font-size:34px;font-weight:700;line-height:1.25;color:var(--ink);letter-spacing:-.01em;
  position:relative;padding-left:18px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--brand);
}
.section-head p{margin:8px 0 0;font-size:15px;color:var(--muted);max-width:560px}
.mini-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.mini-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(255,107,61,.2)}
.mini-card .idx{font-family:ui-monospace,Consolas,monospace;font-weight:600;font-size:13px;color:var(--brand);letter-spacing:.06em}
.mini-card h3{margin:10px 0 8px;font-size:19px;font-weight:600;color:var(--ink);line-height:1.4}
.mini-card p{margin:0;font-size:15px;line-height:1.75;color:var(--muted)}

/* ---------- 深色流程 ---------- */
.dark-band{
  background:var(--ink);
  background-image:radial-gradient(rgba(244,241,234,.10) 1px,transparent 1px);
  background-size:6px 6px;
  color:var(--light-text);
}
.dark-band .section-head h2{color:var(--light-text)}
.dark-band .section-head p{color:rgba(244,241,234,.7)}
.flow-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.flow-card{
  background:rgba(244,241,234,.05);
  border:1px solid rgba(244,241,234,.14);
  border-radius:var(--r-md);padding:26px;
  transition:border-color .18s ease-out,background .18s ease-out,transform .18s ease-out;
}
.flow-card:hover{border-color:rgba(200,242,92,.5);background:rgba(244,241,234,.08);transform:translateY(-3px)}
.flow-card .num{
  font-family:ui-monospace,Consolas,monospace;font-weight:600;font-size:26px;color:var(--lime);line-height:1;
}
.flow-card h3{margin:14px 0 8px;font-size:19px;font-weight:600;color:var(--light-text)}
.flow-card p{margin:0;font-size:15px;line-height:1.75;color:rgba(244,241,234,.72)}
.data-strip{
  display:flex;flex-wrap:wrap;gap:12px 0;margin-top:40px;
  border-top:1px solid rgba(244,241,234,.14);padding-top:24px;
}
.data-strip div{
  flex:1 1 200px;font-size:13px;color:rgba(244,241,234,.62);
  padding-right:24px;border-right:1px solid rgba(244,241,234,.14);
}
.data-strip div:last-child{border-right:0}
.data-strip strong{display:block;font-size:20px;color:var(--light-text);font-family:ui-monospace,"SF Mono",Consolas,monospace;font-weight:600;margin-bottom:4px}

/* ---------- 尾部 CTA ---------- */
.cta-section{background:var(--card);padding:80px 0}
.cta-box{
  border:2px solid var(--brand);border-radius:var(--r-lg);
  padding:48px;display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:center;
  background:var(--card);box-shadow:var(--shadow-1);
}
.cta-box h2{margin:0 0 12px;font-size:32px;font-weight:700;line-height:1.25;color:var(--ink);letter-spacing:-.01em}
.cta-box p{margin:0 0 24px;font-size:16px;line-height:1.8;color:var(--muted);max-width:520px}
.cta-media{border-radius:var(--r-md);overflow:hidden;background:#EFEADF}
.cta-media img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--light-text);padding:72px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand-mark{color:var(--light-text);font-size:22px;font-weight:800}
.footer-brand .brand-mark span{color:var(--brand)}
.footer-brand .brand-sub{color:rgba(244,241,234,.6);font-size:12px;letter-spacing:.08em;margin-top:2px}
.footer-brand p{margin:14px 0 12px;font-size:14px;line-height:1.7;color:rgba(244,241,234,.68);max-width:280px}
.footer-brand a{font-size:13px;color:var(--lime);word-break:break-all}
.footer-brand a:hover{color:var(--lime);text-decoration:underline}
.footer-col h4{margin:0 0 16px;font-size:14px;font-weight:600;color:var(--light-text);letter-spacing:.04em}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:rgba(244,241,234,.68);line-height:1.6}
.footer-col a{font-size:14px;color:rgba(244,241,234,.68);display:inline-block;transition:color .16s ease-out,transform .16s ease-out}
.footer-col a:hover{color:var(--lime);transform:translateX(2px);text-decoration:none}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(244,241,234,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(244,241,234,.55);
}
.footer-bottom .rec{font-family:ui-monospace,Consolas,monospace}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{--bs-offcanvas-width:320px;background:var(--paper);border-left:0;border-radius:16px 0 0 16px}
.mobile-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:20px 24px}
.drawer-title{font-size:16px;font-weight:700;color:var(--ink)}
.drawer-close{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:transparent;
  font-size:20px;line-height:1;color:var(--ink);cursor:pointer;
}
.drawer-close:hover{background:var(--brand-tint);color:var(--brand);border-color:var(--brand-tint)}
.mobile-drawer .offcanvas-body{padding:20px 24px 28px;display:flex;flex-direction:column;gap:8px}
.drawer-link{
  display:block;padding:12px 16px;border-radius:var(--r-xs);font-size:15px;color:var(--ink);
  border:1px solid transparent;
}
.drawer-link:hover{background:var(--brand-tint);color:var(--brand);text-decoration:none}
.drawer-link.active{background:var(--brand);color:#FFFFFF;font-weight:600}
.drawer-cta{margin-top:16px;width:100%}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .container{padding-left:28px;padding-right:28px}
  .row-item{gap:40px}
}
@media (max-width:991.98px){
  .container{padding-left:24px;padding-right:24px}
  .nav-wrap{gap:16px;padding-top:12px;padding-bottom:12px;min-height:auto}
  .chip-nav{order:3;flex:1 0 100%;padding:4px 0 6px;gap:8px}
  .nav-actions{margin-left:auto}
  .nav-cta{padding:10px 16px;font-size:13px}
  .nav-burger{display:flex}
  .page-head{padding:48px 0 32px}
  .page-head h1{font-size:36px}
  .page-lead{font-size:17px}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .row-item,.row-item:nth-child(even){grid-template-columns:1fr;gap:24px;padding:40px 0}
  .row-item:nth-child(even) .row-media{order:0}
  .row-body p{max-width:none}
  .mini-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .cta-box{grid-template-columns:1fr;padding:32px}
  .cta-media{order:-1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:575.98px){
  .container{padding-left:20px;padding-right:20px}
  .page-head h1{font-size:30px}
  .section-head h2{font-size:24px;padding-left:14px}
  .row-body h2,.row-body h3{font-size:21px}
  .cta-box h2{font-size:24px}
  .btn-brand,.btn-ghost,.btn-dark-outline{width:100%;padding:14px 20px}
  .nav-cta{width:auto}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .data-strip div{border-right:0;flex:1 1 100%;padding-right:0}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .row-item:hover .row-media img{transform:none}
}

/* roulang page: category3 */
:root{
  --brand:#FF6B3D;
  --brand-deep:#E85A2C;
  --ink:#221A2E;
  --lime:#C8F25C;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --line:#E6E0D6;
  --text:#1C1720;
  --muted:#5F5866;
  --lite:#F4F1EA;
  --chipbg:#FFEFE8;
  --star:#FFC24B;
  --err:#D8482B;
  --radius-xl:24px;
  --radius:16px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(34,26,46,.06),0 12px 32px -14px rgba(34,26,46,.16);
  --shadow-2:0 2px 4px rgba(34,26,46,.08),0 20px 40px -16px rgba(34,26,46,.24);
  --mono:ui-monospace,"SF Mono","Consolas","Menlo",monospace;

  --bs-primary:#FF6B3D;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#1C1720;
  --bs-border-color:#E6E0D6;
  --bs-border-radius:16px;
  --bs-link-color:#1C1720;
  --bs-link-hover-color:#FF6B3D;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --bs-body-font-family:var(--bs-font-sans-serif);
  --bs-accordion-border-width:0;
  --bs-accordion-btn-focus-box-shadow:none;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
[hidden]{display:none !important}
img{max-width:100%;display:block}
a{color:var(--text);text-decoration:none;transition:color .16s ease-out}
a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px}
@media (max-width:767.98px){.container{padding-left:20px;padding-right:20px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  transition:box-shadow .16s ease-out;
}
.site-header.is-scrolled{box-shadow:0 1px 2px rgba(34,26,46,.06)}
.header-inner{display:flex;align-items:center;gap:28px;min-height:76px}
.brand{display:flex;flex-direction:column;gap:4px;flex:0 0 auto;line-height:1.1}
.brand:hover{text-decoration:none;color:var(--ink)}
.brand-mark{font-size:22px;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.brand-mark span{color:var(--brand)}
.brand-sub{font-size:12px;letter-spacing:.08em;color:var(--muted)}
.chip-nav{display:flex;align-items:center;gap:8px;flex:1 1 auto;overflow-x:auto;scrollbar-width:none}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  display:inline-block;padding:10px 18px;font-size:14px;line-height:1.4;
  color:var(--ink);background:transparent;border:1px solid var(--line);
  border-radius:999px;white-space:nowrap;transition:background .16s ease-out,color .16s ease-out,border-color .16s ease-out;
}
.chip:hover{background:var(--chipbg);border-color:var(--chipbg);color:var(--brand);text-decoration:none}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.chip.active:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff}
.header-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;margin-left:auto}
.nav-cta{padding:12px 22px;font-size:14px}
.nav-burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:var(--card);flex-direction:column;align-items:center;justify-content:center;gap:4px;
  cursor:pointer;transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
.nav-burger:hover{border-color:var(--brand);box-shadow:var(--shadow-1)}
.nav-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.mobile-drawer{background:var(--bg);border-left:1px solid var(--line);border-radius:16px 0 0 16px;width:min(88vw,340px)}
.mobile-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:20px 22px}
.mobile-drawer .offcanvas-title{font-size:17px;font-weight:700;color:var(--ink)}
.mobile-drawer .btn-close{opacity:.6}
.mobile-drawer .offcanvas-body{padding:18px 22px 28px}
.drawer-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.drawer-list a{display:block;padding:13px 16px;border-radius:12px;font-size:15px;color:var(--ink);border:1px solid transparent}
.drawer-list a:hover{background:var(--card);border-color:var(--line);color:var(--brand);text-decoration:none}
.drawer-list a.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.drawer-cta{width:100%;justify-content:center;margin-top:22px}

/* ---------- buttons ---------- */
.btn-brand,.btn-ghost,.btn-dark-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;font-size:15px;font-weight:600;line-height:1.4;
  border-radius:var(--radius-btn);cursor:pointer;border:1px solid transparent;
  transition:background .16s ease-out,color .16s ease-out,border-color .16s ease-out,transform .16s ease-out,box-shadow .16s ease-out;
}
.btn-brand{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-brand:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-brand:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);border-color:var(--ink);color:var(--lite);text-decoration:none;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-dark-outline{background:transparent;border-color:rgba(244,241,234,.4);color:var(--lite)}
.btn-dark-outline:hover{border-color:var(--lime);color:var(--lime);text-decoration:none;transform:translateY(-1px)}
.btn-dark-outline:active{transform:translateY(0)}

/* ---------- hero / search ---------- */
.faq-hero{position:relative;overflow:hidden;background:var(--bg);padding:40px 0 64px}
.faq-hero::before{
  content:"";position:absolute;top:-70px;right:-80px;width:260px;height:260px;
  background:var(--lime);opacity:.18;transform:rotate(45deg);border-radius:44px;pointer-events:none;
}
.breadcrumb-nav{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb-nav a{color:var(--muted)}
.breadcrumb-nav a:hover{color:var(--brand)}
.breadcrumb-nav .sep{color:var(--line)}
.breadcrumb-nav .current{color:var(--muted)}
.faq-hero h1{
  position:relative;z-index:1;
  font-size:46px;font-weight:800;line-height:1.15;letter-spacing:-.02em;
  color:var(--ink);margin:0 0 18px;max-width:900px;
}
.hl{position:relative;display:inline-block}
.hl::after{content:"";position:absolute;left:0;right:0;bottom:3px;height:3px;border-radius:2px;background:var(--brand)}
.hero-lead{position:relative;z-index:1;font-size:18px;line-height:1.7;color:var(--muted);max-width:720px;margin:0 0 30px}
.faq-search{
  position:relative;z-index:1;
  display:flex;align-items:center;gap:12px;
  background:var(--card);border:1px solid var(--line);border-radius:999px;
  padding:8px 8px 8px 22px;max-width:720px;box-shadow:var(--shadow-1);
  transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
.faq-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,107,61,.16)}
.faq-search svg{flex:0 0 auto;color:var(--muted)}
.faq-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-size:15px;color:var(--text);padding:10px 0;
}
.faq-search input::placeholder{color:var(--muted)}
.faq-search .btn-brand{border-radius:999px;padding:10px 22px;font-size:14px;flex:0 0 auto}
.search-hint{position:relative;z-index:1;font-size:13px;color:var(--muted);margin:14px 0 0}

/* ---------- main layout ---------- */
.faq-main{background:var(--card);padding:72px 0 96px}
.faq-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:48px;align-items:start}
.faq-side{position:sticky;top:96px}
.side-card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.side-title{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--muted);margin:0 0 12px}
.side-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.side-link{
  display:block;padding:10px 14px;font-size:14px;color:var(--ink);
  border-left:3px solid transparent;border-radius:10px;transition:background .16s ease-out,color .16s ease-out,border-color .16s ease-out;
}
.side-link:hover{background:var(--card);color:var(--brand);text-decoration:none}
.side-link.active{border-left-color:var(--brand);background:var(--card);color:var(--brand);font-weight:600}
.side-tip{
  margin-top:16px;padding:18px;border-radius:var(--radius);
  background:var(--ink);color:var(--lite);font-size:13px;line-height:1.7;
}
.side-tip strong{display:block;color:var(--lime);font-size:14px;margin-bottom:6px;font-weight:600}

.faq-group{margin-bottom:48px;scroll-margin-top:112px}
.faq-group:last-child{margin-bottom:0}
.faq-group h2{
  position:relative;font-size:26px;font-weight:700;line-height:1.3;
  color:var(--ink);margin:0 0 20px;padding-left:14px;
}
.faq-group h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--brand)}
.faq-accordion{display:flex;flex-direction:column;gap:12px}

.accordion-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
.accordion-item:hover{border-color:rgba(255,107,61,.35)}
.accordion-header{margin:0}
.accordion-button{
  position:relative;width:100%;
  padding:20px 56px 20px 22px;
  font-size:16px;font-weight:600;line-height:1.5;color:var(--ink);
  background:transparent;border:0;border-radius:0;box-shadow:none;
  transition:color .16s ease-out,background .16s ease-out;
}
.accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:none}
.accordion-button:hover{color:var(--brand)}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--lime);outline-offset:-2px}
.accordion-button::after{
  content:"";position:absolute;right:22px;top:50%;
  width:16px;height:16px;margin:0;flex:none;
  transform:translateY(-50%);
  background:
    linear-gradient(var(--brand),var(--brand)) center/16px 2px no-repeat,
    linear-gradient(var(--brand),var(--brand)) center/2px 16px no-repeat;
  transition:transform .18s ease-out,background .18s ease-out;
}
.accordion-button:not(.collapsed)::after{
  transform:translateY(-50%) rotate(180deg);
  background:linear-gradient(var(--brand),var(--brand)) center/16px 2px no-repeat;
}
.accordion-body{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--muted);max-width:760px}
.accordion-body strong{color:var(--ink);font-weight:600}
.accordion-body code{
  font-family:var(--mono);font-size:13px;color:var(--ink);
  background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:2px 6px;
}

.faq-empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  min-height:240px;padding:56px 24px;text-align:center;
  background:var(--bg);border:1px dashed var(--line);border-radius:var(--radius);
  color:var(--muted);font-size:14px;
}
.faq-empty svg{color:var(--line)}
.faq-empty a{color:var(--brand);font-weight:600}

/* ---------- support strip ---------- */
.support-strip{background:var(--bg);padding:80px 0 96px}
.support-card{
  display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:40px;align-items:center;
  background:var(--chipbg);border:1px solid var(--line);border-radius:var(--radius-xl);
  padding:40px;box-shadow:var(--shadow-1);
}
.support-text h2{font-size:30px;font-weight:700;line-height:1.25;color:var(--ink);margin:0}
.support-text p{font-size:15px;line-height:1.8;color:var(--muted);max-width:540px;margin:14px 0 24px}
.support-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius);background:#EFEADF;
}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--lite);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .brand-mark{color:var(--lite);font-size:24px;font-weight:800;letter-spacing:-.02em;line-height:1.1}
.footer-brand .brand-mark span{color:var(--brand)}
.footer-brand .brand-sub{color:rgba(244,241,234,.65);font-size:12px;letter-spacing:.08em;margin-top:5px}
.footer-brand p{font-size:13px;line-height:1.8;color:rgba(244,241,234,.7);margin:16px 0 12px;max-width:270px}
.footer-brand a{color:var(--lime);font-size:13px}
.footer-brand a:hover{color:var(--lime);text-decoration:underline}
.footer-col h4{font-size:14px;font-weight:600;letter-spacing:.04em;color:var(--lite);margin:0 0 16px}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{display:inline-block;font-size:13px;color:rgba(244,241,234,.7);transition:color .16s ease-out,transform .16s ease-out}
.footer-col a:hover{color:var(--lime);transform:translateX(2px);text-decoration:none}
.footer-bottom{
  border-top:1px solid rgba(244,241,234,.12);
  padding:20px 0 28px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:12px;color:rgba(244,241,234,.55);
}
.footer-bottom .rec{color:rgba(244,241,234,.45)}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .faq-hero h1{font-size:42px}
  .faq-layout{gap:36px}
}
@media (max-width:991.98px){
  .header-inner{flex-wrap:wrap;row-gap:10px;padding-top:12px;padding-bottom:12px}
  .chip-nav{order:3;width:100%;flex:1 1 100%}
  .nav-burger{display:flex}
  .nav-cta{padding:10px 18px;font-size:13px}
  .faq-hero{padding:32px 0 48px}
  .faq-hero h1{font-size:34px}
  .hero-lead{font-size:16px}
  .faq-main{padding:56px 0 64px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-side{position:static}
  .side-card{padding:16px}
  .side-list{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:6px;scrollbar-width:none}
  .side-list::-webkit-scrollbar{display:none}
  .side-link{white-space:nowrap;border-left:0;border-bottom:3px solid transparent;border-radius:8px 8px 0 0;padding:8px 12px}
  .side-link.active{border-left-color:transparent;border-bottom-color:var(--brand)}
  .side-tip{display:none}
  .support-card{grid-template-columns:1fr;padding:32px}
  .support-media{order:-1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  .faq-hero h1{font-size:30px}
  .faq-group h2{font-size:22px}
  .accordion-button{font-size:15px;padding:18px 48px 18px 18px}
  .accordion-button::after{right:18px}
  .accordion-body{padding:0 18px 20px;font-size:14.5px}
  .support-text h2{font-size:24px}
  .support-card{padding:24px;gap:24px}
}
@media (max-width:575.98px){
  .brand-mark{font-size:20px}
  .nav-cta{display:none}
  .faq-search{flex-wrap:wrap;border-radius:20px;padding:14px;gap:10px}
  .faq-search svg{display:none}
  .faq-search input{width:100%;flex:1 1 100%;padding:6px 4px}
  .faq-search .btn-brand{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .support-strip{padding:56px 0 64px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .btn-brand:hover,.btn-ghost:hover,.btn-dark-outline:hover{transform:none}
}

/* roulang page: category4 */
:root{
  --brand:#FF6B3D;
  --brand-deep:#E85A2C;
  --ink:#221A2E;
  --lime:#C8F25C;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E6E0D6;
  --text:#1C1720;
  --muted:#5F5866;
  --light:#F4F1EA;
  --warn:#FFC24B;
  --danger:#D8482B;
  --tint:#FFEFE8;
  --ph:#EFEADF;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(34,26,46,.06), 0 12px 32px -14px rgba(34,26,46,.16);
  --sh-2:0 2px 4px rgba(34,26,46,.08), 0 20px 40px -16px rgba(34,26,46,.24);
  --mono:ui-monospace,"SF Mono","Consolas","Liberation Mono",monospace;
  --bs-primary:#FF6B3D;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#1C1720;
  --bs-border-color:#E6E0D6;
  --bs-border-radius:12px;
  --bs-link-color:#1C1720;
  --bs-link-hover-color:#FF6B3D;
  --bs-body-font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;}
[hidden]{display:none !important;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-md);}
a{color:var(--text);text-decoration:none;transition:color .15s ease-out;}
a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
.container{max-width:1200px;padding:0 32px;margin:0 auto;width:100%;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--white{background:var(--surface);}
.section--cream{background:var(--bg);}
.section--dark{background:var(--ink);color:var(--light);}

/* ===== header ===== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease-out;
}
.site-header.is-stuck{box-shadow:0 1px 2px rgba(34,26,46,.06);}
.header-inner{display:flex;align-items:center;gap:24px;height:76px;}
.brand{display:flex;align-items:baseline;gap:8px;flex-shrink:0;}
.brand-mark{font-size:22px;font-weight:800;letter-spacing:-.02em;color:var(--ink);}
.brand-mark span{color:var(--brand);}
.brand-sub{font-size:12px;color:var(--muted);letter-spacing:.02em;}
.chip-nav{
  display:flex;gap:8px;align-items:center;flex:1 1 auto;justify-content:center;
  overflow-x:auto;scrollbar-width:none;
}
.chip-nav::-webkit-scrollbar{display:none;}
.chip{
  display:inline-block;white-space:nowrap;
  padding:10px 18px;border-radius:999px;font-size:14px;
  border:1px solid var(--line);background:transparent;color:var(--ink);
  transition:background .15s ease-out,color .15s ease-out,border-color .15s ease-out;
}
.chip:hover{background:var(--tint);color:var(--brand);border-color:var(--tint);text-decoration:none;}
.chip.active{background:var(--brand);color:#FFFFFF;border-color:var(--brand);}
.chip.active:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#FFFFFF;}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--surface);cursor:pointer;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}

/* ===== buttons ===== */
.btn-brand,.btn-dark-outline,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:600;font-size:15px;border-radius:var(--r-btn);
  padding:14px 28px;cursor:pointer;text-align:center;
  transition:background .16s ease-out,color .16s ease-out,border-color .16s ease-out,transform .16s ease-out,box-shadow .16s ease-out;
}
.btn-brand{background:var(--brand);color:#FFFFFF;border:1px solid var(--brand);}
.btn-brand:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#FFFFFF;text-decoration:none;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-brand:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-dark-outline{background:transparent;color:var(--ink);border:1px solid var(--ink);}
.btn-dark-outline:hover{background:var(--ink);color:var(--light);text-decoration:none;transform:translateY(-1px);}
.btn-dark-outline:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--light);border:1px solid rgba(244,241,234,.4);}
.btn-ghost:hover{color:var(--lime);border-color:var(--lime);text-decoration:none;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:10px 20px;font-size:14px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);
  border-bottom:1px solid transparent;transition:color .15s ease-out,border-color .15s ease-out;
}
.text-link:hover{color:var(--brand);border-bottom-color:var(--brand);text-decoration:none;}

/* ===== breadcrumb ===== */
.crumbs{font-size:14px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--line);}
.crumbs .current{color:var(--muted);}

/* ===== hero ===== */
.page-hero{padding:40px 0 72px;background:var(--bg);position:relative;overflow:hidden;}
.page-hero::after{
  content:"";position:absolute;right:-90px;top:-60px;width:320px;height:320px;
  background:var(--lime);opacity:.16;transform:rotate(45deg);border-radius:48px;z-index:0;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.35fr .65fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:999px;background:var(--tint);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
h1{
  font-size:46px;line-height:1.15;font-weight:800;letter-spacing:-.02em;
  color:var(--ink);margin:18px 0 0;
}
h1 .u{position:relative;display:inline-block;}
h1 .u::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:3px;background:var(--brand);border-radius:2px;
}
.hero-lead{font-size:18px;line-height:1.7;color:var(--muted);margin:22px 0 28px;max-width:560px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.hero-figure{position:relative;}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--ph);border-radius:var(--r-lg);box-shadow:var(--sh-1);}
.hero-tag{
  position:absolute;left:-12px;bottom:18px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--sh-1);padding:12px 16px;
}
.hero-tag .k{font-family:var(--mono);font-size:18px;font-weight:600;color:var(--brand);}
.hero-tag .v{font-size:12px;color:var(--muted);}

/* filter chips */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.filter-chip{
  padding:9px 20px;border-radius:999px;font-size:14px;font-weight:600;
  border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;
  transition:background .15s ease-out,color .15s ease-out,border-color .15s ease-out;
}
.filter-chip:hover{border-color:var(--brand);color:var(--brand);}
.filter-chip.active{background:var(--brand);border-color:var(--brand);color:#FFFFFF;}
.filter-chip.active:hover{color:#FFFFFF;}

/* ===== section titles ===== */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
h2{
  font-size:34px;line-height:1.25;font-weight:700;letter-spacing:-.015em;color:var(--ink);
  margin:0;position:relative;padding-left:16px;
}
h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:5px;border-radius:3px;background:var(--brand);
}
.sec-sub{font-size:14px;color:var(--muted);margin:8px 0 0;padding-left:16px;}
.section--dark h2{color:var(--light);}

/* ===== table ===== */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);box-shadow:var(--sh-1);}
table.log-table{width:100%;border-collapse:collapse;min-width:720px;font-size:15px;}
table.log-table thead th{
  background:var(--ink);color:var(--light);font-size:13px;font-weight:600;
  letter-spacing:.04em;text-align:left;padding:15px 20px;border:none;white-space:nowrap;
}
table.log-table tbody td{padding:15px 20px;border:none;border-bottom:1px solid var(--line);color:var(--text);}
table.log-table tbody tr:last-child td{border-bottom:none;}
table.log-table tbody tr:nth-child(even) td{background:var(--bg);}
table.log-table tbody tr:hover td{background:var(--tint);}
.mono{font-family:var(--mono);font-weight:600;}
.ver-badge{
  display:inline-block;font-family:var(--mono);font-size:13px;font-weight:600;
  background:var(--ink);color:var(--lime);padding:3px 10px;border-radius:999px;
}
.tag-live{display:inline-block;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;background:var(--tint);color:var(--brand);}
.tag-arch{display:inline-block;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;background:var(--bg);color:var(--muted);border:1px solid var(--line);}

/* ===== timeline ===== */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:127px;top:16px;bottom:16px;width:1px;background:var(--line);
}
.tl-item{
  position:relative;display:grid;grid-template-columns:118px 1fr;gap:32px;
  padding:32px 0;border-bottom:1px dashed var(--line);
}
.tl-item:last-child{border-bottom:none;}
.tl-item::before{
  content:"";position:absolute;left:123px;top:44px;width:9px;height:9px;border-radius:50%;
  background:var(--lime);border:2px solid var(--bg);
}
.tl-left .tl-ver{font-family:var(--mono);font-size:20px;font-weight:600;color:var(--ink);line-height:1.3;}
.tl-left .tl-date{font-family:var(--mono);font-size:13px;color:var(--muted);margin-top:4px;}
.tl-body h3{font-size:20px;font-weight:600;color:var(--ink);margin:0 0 12px;}
.tl-body ul{margin:0;padding-left:0;list-style:none;}
.tl-body li{
  position:relative;padding-left:20px;font-size:15px;line-height:1.85;color:var(--muted);
}
.tl-body li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand);opacity:.7;
}
.tl-badges{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px;}

/* ===== note cards ===== */
.note-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.note-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.note-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,107,61,.2);}
.note-card .num{font-family:var(--mono);font-size:15px;font-weight:600;color:var(--brand);}
.note-card h3{font-size:19px;font-weight:600;color:var(--ink);margin:10px 0 10px;}
.note-card p{font-size:15px;line-height:1.75;color:var(--muted);margin:0;}

/* ===== cta ===== */
.cta-box{
  background:var(--surface);border:1px solid var(--brand);border-radius:var(--r-lg);
  padding:48px;display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center;
  box-shadow:var(--sh-1);
}
.cta-box h2{padding-left:0;}
.cta-box h2::before{display:none;}
.cta-box p{margin:14px 0 0;color:var(--muted);font-size:15px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ===== footer ===== */
.site-footer{background:var(--ink);color:var(--light);padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.brand-mark.ft{font-size:22px;font-weight:800;color:var(--light);}
.brand-mark.ft span{color:var(--brand);}
.brand-sub.ft{font-size:12px;color:rgba(244,241,234,.65);margin-top:2px;}
.footer-brand p{font-size:14px;line-height:1.75;color:rgba(244,241,234,.72);margin:16px 0 14px;max-width:280px;}
.footer-brand a{font-size:13px;color:var(--lime);font-family:var(--mono);}
.footer-brand a:hover{color:var(--lime);text-decoration:underline;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--light);margin:0 0 16px;letter-spacing:.04em;}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.footer-col li a,.footer-col li span{font-size:14px;color:rgba(244,241,234,.72);transition:color .15s ease-out,transform .15s ease-out;display:inline-block;}
.footer-col li a:hover{color:var(--lime);transform:translateX(2px);text-decoration:none;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(244,241,234,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(244,241,234,.6);
}
.footer-bottom .rec{font-family:var(--mono);}

/* ===== offcanvas drawer ===== */
.offcanvas.drawer{background:var(--bg);color:var(--text);border-radius:16px 0 0 16px;max-width:320px;}
.offcanvas.drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:20px 22px;}
.offcanvas.drawer .offcanvas-title{font-size:16px;font-weight:700;color:var(--ink);}
.offcanvas.drawer .offcanvas-body{padding:20px 22px;}
.drawer-link{
  display:block;padding:12px 14px;border-radius:var(--r-sm);font-size:15px;font-weight:500;
  color:var(--ink);border:1px solid transparent;
}
.drawer-link:hover{background:var(--tint);color:var(--brand);text-decoration:none;}
.drawer-link.active{background:var(--brand);color:#FFFFFF;font-weight:600;}
.drawer-link.active:hover{color:#FFFFFF;background:var(--brand-deep);}

/* ===== responsive ===== */
@media (max-width:1199.98px){
  .hero-grid{gap:40px;}
  h1{font-size:42px;}
}
@media (max-width:991.98px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .header-inner{height:68px;gap:16px;}
  .chip-nav{justify-content:flex-start;}
  .header-cta{display:none;}
  .menu-toggle{display:inline-flex;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-figure{order:2;max-width:520px;}
  .hero-tag{left:auto;right:12px;bottom:12px;}
  h1{font-size:36px;}
  h2{font-size:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-box{grid-template-columns:1fr;padding:36px;}
  .timeline::before{left:4px;}
  .tl-item{grid-template-columns:1fr;gap:12px;padding-left:28px;}
  .tl-item::before{left:0;top:40px;}
}
@media (max-width:767.98px){
  .section{padding:56px 0;}
  h1{font-size:31px;}
  .hero-lead{font-size:16px;}
  .note-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .sec-head{align-items:flex-start;}
}
@media (max-width:575.98px){
  .container{padding:0 20px;}
  .brand-sub{display:none;}
  h1{font-size:28px;}
  h2{font-size:24px;}
  .btn-brand,.btn-dark-outline,.btn-ghost{padding:12px 22px;font-size:14px;width:100%;}
  .cta-actions{flex-direction:column;align-items:stretch;width:100%;}
  .hero-meta{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .note-card:hover{transform:none;}
  .btn-brand:hover,.btn-dark-outline:hover,.btn-ghost:hover{transform:none;}
}

/* roulang page: category5 */
:root{
  --brand:#FF6B3D;
  --brand-deep:#E85A2C;
  --ink:#221A2E;
  --lime:#C8F25C;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --line:#E6E0D6;
  --text:#1C1720;
  --muted:#5F5866;
  --on-dark:#F4F1EA;
  --star:#FFC24B;
  --danger:#D8482B;
  --tint:#FFEFE8;
  --ph:#EFEADF;

  --r-xl:24px;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;

  --shadow-1:0 1px 2px rgba(34,26,46,.06), 0 12px 32px -14px rgba(34,26,46,.16);
  --shadow-2:0 2px 4px rgba(34,26,46,.08), 0 20px 40px -16px rgba(34,26,46,.24);

  --bs-primary:#FF6B3D;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#1C1720;
  --bs-border-color:#E6E0D6;
  --bs-border-radius:16px;
  --bs-link-color:#1C1720;
  --bs-link-hover-color:#FF6B3D;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--text);text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;}
a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-0.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible,.accordion-button:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:2px;
  border-radius:6px;
}
.mono{font-family:ui-monospace,"SF Mono",Consolas,"Liberation Mono",monospace;font-weight:600;letter-spacing:-0.01em;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px;}

/* ============ header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease-out;
}
.site-header.is-stuck{box-shadow:0 1px 2px rgba(34,26,46,.06);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:76px;
  padding-top:12px;
  padding-bottom:12px;
}
.brand{display:flex;flex-direction:column;line-height:1.1;flex-shrink:0;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  font-size:22px;
  font-weight:800;
  color:var(--ink);
  letter-spacing:-0.02em;
  position:relative;
  display:inline-block;
}
.brand-mark span{color:var(--brand);}
.brand-sub{
  font-size:11px;
  color:var(--muted);
  letter-spacing:.14em;
  margin-top:3px;
}
.chip-nav{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  padding:2px;
  margin-left:16px;
}
.chip-nav::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;
  align-items:center;
  white-space:nowrap;
  font-size:14px;
  padding:10px 18px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--ink);
  background:transparent;
  transition:all .16s ease-out;
  text-decoration:none;
}
.chip:hover{
  background:var(--tint);
  color:var(--brand);
  border-color:var(--tint);
  text-decoration:none;
}
.chip.active{
  background:var(--brand);
  border-color:var(--brand);
  color:#FFFFFF;
  font-weight:600;
}
.chip.active:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#FFFFFF;}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:32px;flex-shrink:0;}

.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:var(--brand);
  color:#FFFFFF;
  border:1px solid var(--brand);
  font-weight:600;
  font-size:15px;
  padding:14px 28px;
  border-radius:var(--r-sm);
  transition:all .16s ease-out;
  cursor:pointer;
  text-decoration:none;
  line-height:1.2;
}
.btn-brand:hover{
  background:var(--brand-deep);
  border-color:var(--brand-deep);
  color:#FFFFFF;
  transform:translateY(-1px);
  box-shadow:var(--shadow-1);
  text-decoration:none;
}
.btn-brand:active{transform:translateY(0);box-shadow:none;}
.btn-brand.btn-sm{padding:11px 20px;font-size:14px;}

.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:transparent;
  color:var(--ink);
  border:1px solid var(--ink);
  font-weight:600;
  font-size:15px;
  padding:14px 28px;
  border-radius:var(--r-sm);
  transition:all .16s ease-out;
  cursor:pointer;
  text-decoration:none;
  line-height:1.2;
}
.btn-ghost:hover{
  background:var(--ink);
  color:#FFFFFF;
  text-decoration:none;
  transform:translateY(-1px);
}
.btn-ghost:active{transform:translateY(0);}

.btn-dark-outline{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:transparent;
  color:var(--on-dark);
  border:1px solid rgba(244,241,234,.4);
  font-weight:600;
  font-size:15px;
  padding:14px 26px;
  border-radius:var(--r-sm);
  transition:all .16s ease-out;
  cursor:pointer;
  text-decoration:none;
  line-height:1.2;
}
.btn-dark-outline:hover{
  border-color:var(--lime);
  color:var(--lime);
  text-decoration:none;
}

.menu-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:var(--card);
  align-items:center;
  justify-content:center;
  cursor:pointer;
  padding:0;
}
.menu-toggle span{
  display:block;
  width:18px;height:2px;
  background:var(--ink);
  position:relative;
  border-radius:2px;
}
.menu-toggle span::before,
.menu-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;height:2px;
  background:var(--ink);
  border-radius:2px;
}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(34,26,46,.42);
  opacity:0;visibility:hidden;
  transition:opacity .2s ease-out;
  z-index:1040;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;right:0;
  width:300px;max-width:86vw;
  height:100%;
  background:var(--bg);
  border-left:1px solid var(--line);
  transform:translateX(100%);
  transition:transform .22s ease-out;
  z-index:1050;
  display:flex;
  flex-direction:column;
  padding:20px;
  border-top-left-radius:var(--r-lg);
  border-bottom-left-radius:var(--r-lg);
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:38px;height:38px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--card);
  font-size:18px;line-height:1;color:var(--ink);cursor:pointer;
}
.drawer-list{display:flex;flex-direction:column;gap:6px;margin-bottom:22px;}
.drawer-list a{
  display:block;
  padding:12px 14px;
  border-radius:var(--r-md);
  font-size:15px;
  color:var(--ink);
  border:1px solid transparent;
}
.drawer-list a:hover{background:var(--tint);color:var(--brand);text-decoration:none;}
.drawer-list a.active{background:var(--brand);color:#FFFFFF;font-weight:600;}
.drawer-cta{margin-top:auto;display:block;text-align:center;}

/* ============ breadcrumb ============ */
.crumbs{
  padding:24px 0 0;
  font-size:14px;
  color:var(--muted);
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--line);}
.crumbs .cur{color:var(--muted);}

/* ============ page hero ============ */
.page-hero{padding:28px 0 64px;}
.hero-grid{
  display:grid;
  grid-template-columns:1fr 420px;
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--tint);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  padding:6px 12px;
  border-radius:999px;
  margin-bottom:18px;
}
h1{
  font-size:46px;
  font-weight:800;
  line-height:1.15;
  letter-spacing:-0.02em;
  color:var(--ink);
}
h1 .key{
  position:relative;
  display:inline-block;
}
h1 .key::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:2px;
  height:3px;
  background:var(--brand);
  border-radius:2px;
}
.hero-sub{
  margin-top:20px;
  font-size:18px;
  line-height:1.7;
  color:var(--muted);
  max-width:560px;
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  margin-top:30px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.hero-stats .stat{
  padding-right:26px;
  margin-right:26px;
  border-right:1px solid var(--line);
}
.hero-stats .stat:last-child{border-right:none;margin-right:0;padding-right:0;}
.hero-stats .k{display:block;font-size:12px;color:var(--muted);letter-spacing:.06em;}
.hero-stats .v{display:block;font-size:18px;color:var(--ink);margin-top:2px;}

.hero-figure{
  position:relative;
  border-radius:var(--r-xl);
  overflow:hidden;
  background:var(--ph);
  box-shadow:var(--shadow-1);
}
.hero-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.hero-figure::after{
  content:"";
  position:absolute;
  right:-40px;bottom:-40px;
  width:140px;height:140px;
  background:var(--lime);
  transform:rotate(45deg);
  opacity:.28;
  pointer-events:none;
}

/* ============ sections ============ */
.section{padding:72px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-head h2{
  font-size:34px;
  font-weight:700;
  line-height:1.25;
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:8px;bottom:8px;
  width:4px;
  border-radius:2px;
  background:var(--brand);
}
.section-desc{color:var(--muted);font-size:15px;margin-top:10px;padding-left:16px;max-width:640px;}
.link-arrow{
  color:var(--ink);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  border-bottom:1px solid var(--line);
  padding-bottom:2px;
}
.link-arrow:hover{color:var(--brand);border-color:var(--brand);text-decoration:none;}

/* ============ platform cards ============ */
.platform-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.platform-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .18s ease-out, box-shadow .18s ease-out, border-color .18s ease-out;
  display:flex;
  flex-direction:column;
}
.platform-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-2);
  border-color:rgba(255,107,61,.2);
}
.pc-icon{
  width:52px;height:52px;
  border-radius:14px;
  background:var(--tint);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
  color:var(--brand);
}
.pc-icon svg{width:26px;height:26px;}
.pc-name{font-size:22px;font-weight:700;color:var(--ink);}
.pc-tag{
  display:inline-block;
  margin-top:8px;
  background:var(--tint);
  color:var(--brand);
  font-size:12px;
  padding:4px 10px;
  border-radius:999px;
  font-weight:600;
}
.pc-list{margin-top:20px;border-top:1px solid var(--line);}
.pc-list li{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  padding:11px 0;
  border-bottom:1px dashed var(--line);
  font-size:14px;
}
.pc-list li:last-child{border-bottom:none;}
.pc-list .k{color:var(--muted);}
.pc-list .v{color:var(--ink);font-size:14px;}
.pc-card .btn-ghost{margin-top:22px;width:100%;padding:12px 18px;font-size:14px;}

/* ============ table ============ */
.table-wrap{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.table-scroll{
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  position:relative;
}
table.compare{
  width:100%;
  min-width:760px;
  border-collapse:collapse;
  font-size:15px;
}
table.compare thead th{
  background:var(--ink);
  color:var(--on-dark);
  font-weight:600;
  font-size:14px;
  text-align:left;
  padding:16px 20px;
  white-space:nowrap;
  letter-spacing:.02em;
}
table.compare thead th:first-child{color:rgba(244,241,234,.72);font-weight:500;}
table.compare tbody td{
  padding:14px 20px;
  border-bottom:1px solid var(--line);
  color:var(--text);
  vertical-align:top;
}
table.compare tbody tr:nth-child(even){background:rgba(34,26,46,.028);}
table.compare tbody tr:last-child td{border-bottom:none;}
table.compare tbody td:first-child{
  color:var(--ink);
  font-weight:600;
  white-space:nowrap;
}
table.compare tbody td.num{font-family:ui-monospace,"SF Mono",Consolas,monospace;font-weight:600;}
.table-note{
  padding:14px 20px;
  border-top:1px solid var(--line);
  background:var(--bg);
  font-size:13px;
  color:var(--muted);
}

/* ============ checklist ============ */
.section-dark{
  background:var(--ink);
  color:var(--on-dark);
  position:relative;
  overflow:hidden;
}
.section-dark::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(244,241,234,.16) 1px, transparent 1px);
  background-size:14px 14px;
  opacity:.5;
  pointer-events:none;
}
.section-dark .container{position:relative;z-index:1;}
.section-dark h2{color:var(--on-dark);}
.section-dark .section-desc{color:rgba(244,241,234,.72);}
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.check-card{
  background:rgba(244,241,234,.05);
  border:1px solid rgba(244,241,234,.16);
  border-radius:var(--r-lg);
  padding:24px;
  transition:border-color .18s ease-out, background-color .18s ease-out;
}
.check-card:hover{border-color:rgba(200,242,92,.55);background:rgba(244,241,234,.08);}
.check-card .no{
  font-family:ui-monospace,"SF Mono",Consolas,monospace;
  font-size:26px;
  font-weight:600;
  color:var(--brand);
  display:block;
  margin-bottom:12px;
  letter-spacing:-0.02em;
}
.check-card h3{font-size:19px;color:var(--on-dark);margin-bottom:10px;}
.check-card p{font-size:14.5px;line-height:1.75;color:rgba(244,241,234,.75);}

/* ============ FAQ ============ */
.faq-wrap{
  display:grid;
  grid-template-columns:280px 1fr;
  gap:48px;
  align-items:start;
}
.faq-aside h2{font-size:32px;line-height:1.25;padding-left:14px;position:relative;}
.faq-aside h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--brand);
}
.faq-aside p{margin-top:14px;color:var(--muted);font-size:14.5px;line-height:1.7;}
.accordion{--bs-accordion-border-color:var(--line);}
.accordion-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg) !important;
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.accordion-item:last-child{margin-bottom:0;}
.accordion-button{
  background:var(--card);
  color:var(--ink);
  font-size:16px;
  font-weight:600;
  padding:20px 24px;
  border-radius:var(--r-lg) !important;
  box-shadow:none !important;
  line-height:1.5;
}
.accordion-button:not(.collapsed){
  background:var(--tint);
  color:var(--ink);
}
.accordion-button::after{
  display:none;
}
.accordion-button .plus{
  margin-left:auto;
  font-family:ui-monospace,Consolas,monospace;
  font-size:20px;
  color:var(--brand);
  line-height:1;
  flex-shrink:0;
  padding-left:16px;
}
.accordion-body{
  padding:4px 24px 24px;
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
  max-width:720px;
}

/* ============ CTA band ============ */
.cta-section{padding:72px 0 88px;background:var(--card);}
.cta-band{
  border:2px solid var(--brand);
  border-radius:var(--r-xl);
  padding:44px 48px;
  display:grid;
  grid-template-columns:1fr 260px;
  gap:40px;
  align-items:center;
  background:var(--bg);
  position:relative;
  overflow:hidden;
}
.cta-band h2{font-size:32px;line-height:1.3;}
.cta-band p{margin-top:14px;color:var(--muted);font-size:16px;max-width:560px;}
.cta-band .actions{margin-top:26px;display:flex;gap:14px;flex-wrap:wrap;}
.cta-figure{
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--ph);
  box-shadow:var(--shadow-1);
}
.cta-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ============ footer ============ */
.site-footer{
  background:var(--ink);
  color:var(--on-dark);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand-mark{color:var(--on-dark);font-size:24px;}
.footer-brand .brand-mark span{color:var(--brand);}
.footer-brand .brand-sub{color:rgba(244,241,234,.6);}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.75;
  color:rgba(244,241,234,.66);
  max-width:280px;
}
.footer-brand a{
  display:inline-block;
  margin-top:14px;
  font-size:13px;
  color:var(--lime);
  font-family:ui-monospace,Consolas,monospace;
}
.footer-brand a:hover{color:var(--lime);text-decoration:underline;}
.footer-col h4{
  font-size:14px;
  color:var(--on-dark);
  font-weight:600;
  margin-bottom:16px;
  letter-spacing:.04em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li a,
.footer-col li span{
  font-size:14px;
  color:rgba(244,241,234,.68);
  transition:color .16s ease-out, transform .16s ease-out;
  display:inline-block;
}
.footer-col li a:hover{
  color:var(--lime);
  transform:translateX(2px);
  text-decoration:none;
}
.footer-bottom{
  border-top:1px solid rgba(244,241,234,.12);
  padding:20px 0 26px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(244,241,234,.55);
}
.footer-bottom .rec{font-family:ui-monospace,Consolas,monospace;font-size:12.5px;}

/* ============ responsive ============ */
@media (max-width:1199px){
  .hero-grid{grid-template-columns:1fr 360px;gap:36px;}
  h1{font-size:42px;}
}
@media (max-width:991px){
  .container{padding-left:24px;padding-right:24px;}
  .chip-nav{display:none;}
  .header-actions{margin-left:auto;gap:10px;}
  .header-actions .btn-brand{display:none;}
  .menu-toggle{display:flex;}
  .header-inner{min-height:68px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  h1{font-size:36px;}
  .hero-sub{font-size:17px;}
  .page-hero{padding-bottom:48px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:30px;}
  .section-head h2{font-size:28px;}
  .platform-grid{grid-template-columns:1fr;gap:18px;}
  .check-grid{grid-template-columns:1fr;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .cta-band{grid-template-columns:1fr;padding:32px 28px;gap:28px;}
  .cta-band h2{font-size:26px;}
  .cta-figure{max-width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575px){
  .container{padding-left:20px;padding-right:20px;}
  h1{font-size:30px;}
  .hero-stats .stat{padding-right:16px;margin-right:16px;}
  .hero-stats .v{font-size:16px;}
  .section{padding:48px 0;}
  .section-head h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .cta-band{padding:26px 20px;}
  .cta-band h2{font-size:23px;}
  .accordion-button{font-size:15px;padding:16px 18px;}
  .accordion-body{padding:0 18px 20px;}
  .btn-brand,.btn-ghost,.btn-dark-outline{padding:13px 22px;font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .platform-card:hover,.btn-brand:hover,.btn-ghost:hover{transform:none;}
}