/* roulang page: index */
:root{
  --c-primary:#F26522;
  --c-primary-hover:#D9551A;
  --c-primary-soft:#FFE7D8;
  --c-primary-10:rgba(242,101,34,.10);
  --c-secondary:#0F3B33;
  --c-accent:#FFB020;
  --bg-page:#FFF8F2;
  --bg-card:#FFFFFF;
  --bg-soft:#FDF1E7;
  --bg-dark:#0F3B33;
  --t-main:#1E1A17;
  --t-sub:#6A5C52;
  --t-weak:#9A8C82;
  --t-invert:#FFF8F2;
  --t-invert-72:rgba(255,248,242,.72);
  --bd:#F0E2D6;
  --bd-strong:#E3D2C4;
  --r-card:16px;
  --r-dark:24px;
  --r-btn:999px;
  --r-input:12px;
  --r-badge:8px;
  --sh-1:0 1px 2px rgba(30,26,23,.04),0 2px 8px rgba(30,26,23,.06);
  --sh-2:0 8px 24px rgba(30,26,23,.08);
  --sp-section:88px;
  --nav-h:64px;
  --ok:#1E9E6A;
  --warn:#E0A800;
  --err:#D64545;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.8;color:var(--t-main);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--c-primary)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding-left:0;list-style:none}
:focus-visible{outline:3px solid rgba(242,101,34,.35);outline-offset:2px;border-radius:6px}
.topline{height:3px;background:var(--c-primary)}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container-x{max-width:1280px}}
.section{padding:var(--sp-section) 0}
.section-tight{padding:64px 0}
.sec-title{font-size:28px;line-height:1.3;font-weight:700;letter-spacing:-.2px;position:relative;padding-left:16px}
.sec-title::before{content:"";position:absolute;left:0;top:.18em;width:3px;height:1.1em;border-radius:2px;background:var(--c-primary)}
.sec-sub{margin-top:10px;color:var(--t-sub);font-size:15px;max-width:640px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.text-link{font-size:15px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:8px}
.text-link i{font-size:12px;transition:transform .18s ease-out}
.text-link:hover i{transform:translateX(4px)}

/* 按钮 */
.btn-x{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;padding:12px 28px;border-radius:var(--r-btn);border:0;cursor:pointer;transition:all .18s ease-out;white-space:nowrap}
.btn-primary-x{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary-x:hover{background:var(--c-primary-hover);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-primary-x:active{transform:translateY(0)}
.btn-ghost-x{background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary)}
.btn-ghost-x:hover{background:rgba(242,101,34,.08);color:var(--c-primary-hover)}
.btn-light-x{background:var(--t-invert);color:var(--c-secondary)}
.btn-light-x:hover{background:#fff;color:var(--c-secondary);transform:translateY(-1px)}
.btn-outline-light-x{background:transparent;color:var(--t-invert);border:1.5px solid rgba(255,248,242,.5)}
.btn-outline-light-x:hover{background:rgba(255,248,242,.12);color:#fff;border-color:rgba(255,248,242,.8)}
.btn-x:disabled{opacity:.5;cursor:not-allowed}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}

/* 徽章 / 标签 */
.badge-x{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;padding:5px 12px;border-radius:var(--r-badge);background:var(--c-primary-10);color:var(--c-primary)}
.badge-line{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--t-sub);border:1px solid var(--bd);padding:4px 10px;border-radius:var(--r-badge);background:#fff}
.tag-dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary)}

/* 导航 */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,248,242,.94);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:all .2s ease-out}
.site-header.scrolled{background:rgba(255,255,255,.95);border-bottom-color:var(--bd);box-shadow:var(--sh-1)}
.nav-wrap{display:flex;align-items:center;gap:24px;height:var(--nav-h);transition:height .2s ease-out}
.site-header.scrolled .nav-wrap{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--c-primary);color:#fff;display:grid;place-items:center;font-weight:800;font-size:16px;letter-spacing:-.5px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:19px;font-weight:800;letter-spacing:-.3px;color:var(--t-main)}
.brand-sub{font-size:11px;color:var(--t-weak);letter-spacing:.5px}
.nav-channels{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-channels a{font-size:15px;color:var(--t-sub);font-weight:500;padding:6px 0;position:relative}
.nav-channels a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--c-primary);border-radius:2px;transition:width .18s ease-out}
.nav-channels a:hover{color:var(--c-primary)}
.nav-channels a:hover::after,.nav-channels a.active::after{width:100%}
.nav-channels a.active{color:var(--c-primary);font-weight:600}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-toggle{width:40px;height:40px;border-radius:50%;border:1px solid var(--bd);background:#fff;color:var(--t-sub);display:grid;place-items:center;cursor:pointer;transition:all .18s ease-out}
.search-toggle:hover{color:var(--c-primary);border-color:var(--c-primary);box-shadow:var(--sh-1)}
.search-box{display:none;align-items:center;background:#fff;border:1px solid var(--bd);border-radius:var(--r-btn);padding:0 6px 0 16px;height:40px;width:240px}
.search-box.open{display:flex}
.search-box input{border:0;outline:0;flex:1;font-size:14px;background:transparent;color:var(--t-main);min-width:0}
.search-box button{border:0;background:transparent;color:var(--c-primary);font-size:14px;padding:6px 10px;cursor:pointer}
.nav-cta{padding:10px 22px;font-size:14px}
.burger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--bd);background:#fff;color:var(--t-main);font-size:17px}
.offcanvas-x{background:var(--bg-page)}
.offcanvas-x .oc-brand{padding:20px 0;border-bottom:1px solid var(--bd)}
.oc-list a{display:flex;align-items:center;justify-content:space-between;height:52px;border-bottom:1px solid var(--bd);font-size:16px;color:var(--t-main)}
.oc-list a.active{color:var(--c-primary);font-weight:600}
@media (max-width:1199px){
  .nav-channels{gap:20px}
  .nav-channels a{font-size:14px}
}
@media (max-width:991px){
  .nav-channels,.search-toggle,.search-box{display:none !important}
  .burger{display:grid;place-items:center}
  .nav-cta{display:none}
}

/* Hero */
.hero{position:relative;padding:56px 0 88px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(560px 320px at 88% 8%, rgba(255,176,32,.16), transparent 70%),
  linear-gradient(180deg,#FFF8F2 0%,#FFF8F2 60%,#FDF1E7 100%);
  z-index:0}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:55% 45%;gap:48px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-secondary);background:#fff;border:1px solid var(--bd);padding:6px 14px;border-radius:var(--r-btn);box-shadow:var(--sh-1);margin-bottom:20px}
.hero-eyebrow .live{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(30,158,106,.16)}
.hero h1{font-size:40px;line-height:1.2;font-weight:800;letter-spacing:-.5px}
.hero-lead{margin-top:18px;font-size:17px;line-height:1.8;color:var(--t-sub);max-width:520px}
.hero-actions{margin-top:30px}
.hero-badges{margin-top:28px;display:flex;gap:10px;flex-wrap:wrap}
.hero-badges span{font-size:13px;color:var(--t-sub);background:#fff;border:1px solid var(--bd);border-radius:var(--r-badge);padding:6px 12px}
.hero-badges span b{color:var(--t-main);font-weight:700}
.hero-visual{position:relative}
.hero-visual::after{content:"";position:absolute;inset:-18px -18px auto auto;width:150px;height:150px;
  background:conic-gradient(from 210deg, rgba(242,101,34,.22), transparent 55%);
  border-radius:50%;filter:blur(6px);z-index:-1}
.hero-frame{position:relative;border-radius:var(--r-card);overflow:hidden;border:3px solid var(--c-primary);box-shadow:var(--sh-2);aspect-ratio:16/12}
.hero-frame img{width:100%;height:100%;object-fit:cover}
.hero-frame .frame-tag{position:absolute;left:16px;bottom:16px;background:rgba(15,59,51,.86);color:var(--t-invert);font-size:13px;padding:8px 14px;border-radius:var(--r-badge)}
.hero-rotate{position:absolute;right:-14px;top:-14px;width:110px;height:110px;border:1.5px dashed rgba(242,101,34,.5);border-radius:24px;transform:rotate(8deg);z-index:2}
@media (max-width:991px){
  .hero{padding:36px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero h1{font-size:32px}
}
@media (max-width:575px){
  .hero h1{font-size:28px}
  .hero-actions .btn-x{width:100%}
  .hero-rotate{display:none}
}

/* 功能价值带 */
.value-band{background:var(--bg-soft);padding:var(--sp-section) 0}
.value-grid{display:grid;grid-template-columns:300px 1fr;gap:48px}
.value-aside h2{margin-bottom:14px}
.value-aside p{color:var(--t-sub);font-size:15px}
.value-aside .stat{margin-top:28px;padding-top:22px;border-top:1px solid var(--bd-strong)}
.value-aside .stat b{display:block;font-size:34px;font-weight:800;color:var(--c-primary);letter-spacing:-1px;line-height:1.1}
.value-aside .stat span{font-size:13px;color:var(--t-weak)}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--bd-strong);border-radius:var(--r-card);overflow:hidden;background:#fff}
.feature-block{padding:28px;border-right:1px solid var(--bd);border-bottom:1px solid var(--bd);position:relative;transition:background .18s ease-out}
.feature-block:nth-child(2n){border-right:0}
.feature-block:nth-last-child(-n+2){border-bottom:0}
.feature-block:hover{background:#FFFDFB}
.feature-block .fb-ico{width:40px;height:40px;border-radius:12px;background:var(--c-primary-soft);color:var(--c-primary);display:grid;place-items:center;font-size:16px;margin-bottom:16px}
.feature-block h3{font-size:18px;line-height:1.45;font-weight:600;margin-bottom:8px}
.feature-block p{font-size:14px;color:var(--t-sub);line-height:1.75}
.feature-block::before{content:"";position:absolute;left:0;top:26px;width:2px;height:26px;background:var(--c-primary);border-radius:2px}
@media (max-width:991px){
  .value-grid{grid-template-columns:1fr;gap:32px}
}
@media (max-width:575px){
  .feature-grid{grid-template-columns:1fr}
  .feature-block{border-right:0}
  .feature-block:nth-last-child(-n+2){border-bottom:1px solid var(--bd)}
  .feature-block:last-child{border-bottom:0}
}

/* 轮播 */
.shots{background:var(--bg-page)}
.carousel-x .carousel-inner{border-radius:var(--r-card);overflow:hidden}
.frame{position:relative;aspect-ratio:16/9;background:var(--bg-soft)}
.frame img{width:100%;height:100%;object-fit:cover}
.frame .corner-tag{position:absolute;left:20px;top:20px;background:rgba(15,59,51,.86);color:var(--t-invert);font-size:13px;font-weight:600;padding:7px 14px;border-radius:var(--r-badge)}
.frame .corner-note{position:absolute;left:20px;bottom:20px;right:20px;background:rgba(255,255,255,.94);border-radius:12px;padding:14px 18px;box-shadow:var(--sh-1)}
.frame .corner-note b{display:block;font-size:16px;font-weight:600}
.frame .corner-note span{font-size:13px;color:var(--t-sub)}
.carousel-x .carousel-indicators{position:static;margin:24px 0 0;display:flex;justify-content:center;gap:8px}
.carousel-x .carousel-indicators [data-bs-target]{width:34px;height:5px;border-radius:999px;background:var(--bd-strong);border:0;margin:0;opacity:1;transition:all .2s ease-out}
.carousel-x .carousel-indicators .active{background:var(--c-primary);width:46px}
.carousel-x .carousel-control-prev,.carousel-x .carousel-control-next{width:44px;height:44px;border-radius:50%;background:#fff;box-shadow:var(--sh-1);color:var(--t-main);opacity:1;top:50%;transform:translateY(-50%);border:1px solid var(--bd)}
.carousel-x .carousel-control-prev{left:-22px}
.carousel-x .carousel-control-next{right:-22px}
.carousel-x .carousel-control-prev:hover,.carousel-x .carousel-control-next:hover{color:var(--c-primary);box-shadow:var(--sh-2)}
.carousel-x .carousel-control-prev-icon,.carousel-x .carousel-control-next-icon{display:none}
.carousel-x .carousel-control-prev::after{content:"\f053";font-family:"Font Awesome 6 Free";font-weight:900;font-size:14px}
.carousel-x .carousel-control-next::after{content:"\f054";font-family:"Font Awesome 6 Free";font-weight:900;font-size:14px}
@media (max-width:767px){
  .carousel-x .carousel-control-prev,.carousel-x .carousel-control-next{display:none}
  .frame .corner-note{left:14px;right:14px;bottom:14px;padding:12px 14px}
}

/* 系统要求 */
.spec-table{width:100%;border-collapse:separate;border-spacing:0;border-radius:var(--r-card);overflow:hidden}
.spec-table tr:nth-child(odd){background:var(--bg-soft)}
.spec-table td{padding:0 18px;height:48px;font-size:14px;border-bottom:1px solid var(--bd)}
.spec-table tr:last-child td{border-bottom:0}
.spec-table td:first-child{width:40%;color:var(--t-weak)}
.spec-table td:last-child{color:var(--t-main);font-weight:600}
.spec-side{position:relative;border-radius:var(--r-card);overflow:hidden;aspect-ratio:4/3;background:var(--bg-soft)}
.spec-side img{width:100%;height:100%;object-fit:cover}
.spec-side .overlay{position:absolute;inset:auto 0 0 0;padding:20px;background:linear-gradient(180deg,transparent,rgba(15,59,51,.86));color:var(--t-invert);font-size:14px}

/* 评价墙 */
.reviews{background:var(--bg-soft)}
.review-card{background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-1);padding:26px;height:100%;border-left:2px solid var(--c-primary);transition:all .18s ease-out}
.review-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.review-top{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--c-primary-soft);color:var(--c-primary);display:grid;place-items:center;font-weight:700;font-size:15px}
.review-name{font-size:15px;font-weight:600;line-height:1.3}
.review-role{font-size:12px;color:var(--t-weak)}
.stars{color:var(--c-accent);font-size:12px;letter-spacing:2px;margin-bottom:10px}
.review-card p{font-size:14px;color:var(--t-sub);line-height:1.8}

/* 下载带 */
.download-band{background:var(--bg-page)}
.download-inner{background:var(--bg-dark);border-radius:var(--r-dark);padding:48px 40px;text-align:center;color:var(--t-invert)}
.download-inner h2{font-size:28px;font-weight:700;letter-spacing:-.2px}
.download-inner p{margin-top:12px;color:var(--t-invert-72);font-size:15px}
.download-inner .btn-row{justify-content:center;margin-top:28px}
.download-inner .note{margin-top:18px;font-size:13px;color:rgba(255,248,242,.6)}
@media (max-width:575px){
  .download-inner{padding:36px 22px}
  .download-inner .btn-x{width:100%}
}

/* CMS 列表 */
.news-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:24px;align-items:start}
.news-lead{background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:all .18s ease-out;display:block;height:100%}
.news-lead:hover{box-shadow:var(--sh-2);transform:translateY(-3px);color:inherit}
.news-lead .cover{aspect-ratio:16/10;background:var(--bg-soft);overflow:hidden}
.news-lead .cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.news-lead:hover .cover img{transform:scale(1.03)}
.news-lead .body{padding:24px}
.news-lead h3{font-size:20px;line-height:1.5;font-weight:600;margin:12px 0 10px}
.news-lead:hover h3{color:var(--c-primary)}
.news-lead p{font-size:14px;color:var(--t-sub);line-height:1.8}
.news-lead .meta{margin-top:16px;display:flex;align-items:center;gap:14px;font-size:13px;color:var(--t-weak)}
.news-rows{display:grid;gap:12px}
.news-row{display:flex;gap:16px;background:#fff;border-radius:14px;box-shadow:var(--sh-1);padding:14px;transition:all .18s ease-out}
.news-row:hover{box-shadow:var(--sh-2);transform:translateY(-3px);color:inherit}
.news-row .thumb{width:96px;height:72px;flex-shrink:0;border-radius:10px;overflow:hidden;background:var(--bg-soft)}
.news-row .thumb img{width:100%;height:100%;object-fit:cover}
.news-row h4{font-size:15px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px}
.news-row:hover h4{color:var(--c-primary)}
.news-row .meta{font-size:12px;color:var(--t-weak);display:flex;gap:10px;align-items:center}
.empty-state{background:#fff;border:1px dashed var(--bd-strong);border-radius:var(--r-card);padding:56px 24px;text-align:center}
.empty-state i{font-size:28px;color:var(--c-primary);opacity:.7}
.empty-state p{margin:14px 0 20px;color:var(--t-sub);font-size:15px}
@media (max-width:991px){
  .news-grid{grid-template-columns:1fr}
}

/* FAQ */
.faq-list{background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--bd)}
.faq-item:last-child{border-bottom:0}
.faq-q{width:100%;background:transparent;border:0;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 24px;min-height:56px;font-size:16px;font-weight:600;color:var(--t-main);cursor:pointer;position:relative;transition:color .18s ease-out}
.faq-q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:transparent;border-radius:2px;transition:background .18s ease-out}
.faq-q span.q{flex:1}
.faq-q i{font-size:13px;color:var(--t-weak);transition:transform .2s ease-out}
.faq-item.open .faq-q{color:var(--c-primary)}
.faq-item.open .faq-q::before{background:var(--c-primary)}
.faq-item.open .faq-q i{transform:rotate(180deg);color:var(--c-primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
.faq-a p{padding:0 24px 20px 24px;font-size:15px;color:var(--t-sub);line-height:1.85}

/* 页脚前 CTA */
.pre-cta{background:var(--bg-soft);padding:0}
.pre-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:44px 0;flex-wrap:wrap}
.pre-cta-inner h2{font-size:24px;font-weight:700}
.pre-cta-inner p{margin-top:8px;font-size:14px;color:var(--t-sub)}

/* 页脚 */
.site-footer{background:var(--bg-dark);color:var(--t-invert);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-name{color:var(--t-invert)}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--t-invert-72);line-height:1.85;max-width:300px}
.footer-title{font-size:15px;font-weight:600;color:var(--t-invert);margin-bottom:18px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:var(--t-invert-72)}
.footer-links a:hover{color:var(--t-invert)}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,248,242,.16);padding:22px 0;font-size:13px;color:rgba(255,248,242,.55);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;gap:32px}
}

@media (max-width:767px){
  :root{--sp-section:56px}
  .sec-title{font-size:22px}
  .container-x{padding:0 16px}
  .section-tight{padding:48px 0}
  .pre-cta-inner{padding:32px 0}
  .pre-cta-inner h2{font-size:20px}
}

/* roulang page: article */
:root{
  --c-primary:#F26522;
  --c-primary-hover:#D9551A;
  --c-primary-soft:#FFE7D8;
  --c-primary-10:rgba(242,101,34,.10);
  --c-secondary:#0F3B33;
  --c-accent:#FFB020;
  --bg-page:#FFF8F2;
  --bg-card:#FFFFFF;
  --bg-soft:#FDF1E7;
  --tx-main:#1E1A17;
  --tx-sub:#6A5C52;
  --tx-weak:#9A8C82;
  --tx-invert:#FFF8F2;
  --tx-invert-72:rgba(255,248,242,.72);
  --bd:#F0E2D6;
  --bd-strong:#E3D2C4;
  --ok:#1E9E6A;
  --warn:#E0A800;
  --err:#D64545;
  --r-card:16px;
  --r-block:24px;
  --r-btn:999px;
  --r-input:12px;
  --r-badge:8px;
  --sh-1:0 1px 2px rgba(30,26,23,.04), 0 2px 8px rgba(30,26,23,.06);
  --sh-2:0 8px 24px rgba(30,26,23,.08);
  --sp-section:88px;
  --container:1200px;
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--tx-main);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--c-primary)}
button,input{font:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(242,101,34,.35);outline-offset:2px}
.top-strip{height:3px;background:var(--c-primary)}
.container-x{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1400px){ .container-x{max-width:1280px} }

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,248,242,.92);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid transparent;
  transition:height var(--ease),box-shadow var(--ease),border-color var(--ease),background var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--bd);
  box-shadow:var(--sh-1);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:64px;
  transition:height var(--ease);
}
.site-header.is-scrolled .header-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--c-primary);
  color:#fff;font-weight:800;font-size:19px;
  box-shadow:var(--sh-1);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.2px}
.brand-sub{font-size:11px;color:var(--tx-weak);letter-spacing:.4px}
.nav-channels{display:flex;align-items:center;gap:28px;flex:1 1 auto}
.nav-channels a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--tx-sub);
  padding:6px 0;
  white-space:nowrap;
}
.nav-channels a::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;
  height:2px;border-radius:2px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--ease);
}
.nav-channels a:hover{color:var(--tx-main)}
.nav-channels a:hover::after,.nav-channels a.active::after{transform:scaleX(1)}
.nav-channels a.active{color:var(--c-primary);font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--bd);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--tx-sub);
  transition:all var(--ease);
}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);box-shadow:var(--sh-1)}
.icon-btn svg{width:18px;height:18px}
.search-pill{
  display:flex;align-items:center;gap:8px;
  width:0;overflow:hidden;opacity:0;
  border:1px solid var(--bd);
  border-radius:var(--r-btn);
  background:#fff;
  padding:0;
  transition:width var(--ease),opacity var(--ease),padding var(--ease);
}
.search-pill.is-open{width:240px;opacity:1;padding:4px 6px 4px 14px}
.search-pill input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--tx-main);
}
.search-pill input::placeholder{color:var(--tx-weak)}
.search-pill button{
  border:0;background:var(--c-primary-soft);color:var(--c-primary-hover);
  width:30px;height:30px;border-radius:var(--r-btn);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.search-pill button svg{width:15px;height:15px}
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;
  padding:12px 28px;
  border-radius:var(--r-btn);
  border:1.5px solid transparent;
  transition:all var(--ease);
  white-space:nowrap;
}
.btn-x svg{width:16px;height:16px}
.btn-primary-x{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary-x:hover{background:var(--c-primary-hover);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-primary-x:active{transform:translateY(0)}
.btn-outline-x{background:transparent;border-color:var(--c-primary);color:var(--c-primary-hover)}
.btn-outline-x:hover{background:var(--c-primary-10);color:var(--c-primary-hover)}
.btn-light-x{background:var(--tx-invert);color:var(--c-secondary)}
.btn-light-x:hover{background:#fff;color:var(--c-secondary);box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-ghost-x{border-color:rgba(255,248,242,.5);color:var(--tx-invert)}
.btn-ghost-x:hover{border-color:var(--tx-invert);color:#fff;background:rgba(255,248,242,.1)}
.btn-sm-x{padding:9px 20px;font-size:14px}
.btn-lg-x{padding:14px 32px;font-size:16px}

/* ---------- drawer ---------- */
.site-drawer{width:84%!important;max-width:360px;background:var(--bg-page);border-left:1px solid var(--bd)}
.site-drawer .offcanvas-header{border-bottom:1px solid var(--bd);padding:18px 20px}
.site-drawer .offcanvas-body{padding:16px 20px 28px}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  display:flex;align-items:center;
  height:52px;
  font-size:16px;
  color:var(--tx-main);
  border-bottom:1px solid var(--bd);
}
.drawer-nav a.active{color:var(--c-primary);font-weight:600}
.drawer-search{display:flex;gap:8px;margin:20px 0}
.drawer-search input{
  flex:1;height:48px;padding:0 16px;
  border:1px solid var(--bd);border-radius:var(--r-input);background:#fff;
  outline:none;font-size:15px;
}
.drawer-search input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(242,101,34,.2)}

/* ---------- breadcrumb ---------- */
.breadcrumb-bar{background:var(--bg-soft);border-bottom:1px solid var(--bd)}
.crumbs{
  display:flex;align-items:center;gap:10px;
  height:48px;
  font-size:13px;color:var(--tx-sub);
  overflow:hidden;
}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{color:var(--bd-strong)}
.crumbs .current{
  color:var(--tx-weak);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:46%;
}

/* ---------- article head ---------- */
.article-head{padding:44px 0 28px}
.article-head .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary-hover);
  background:var(--c-primary-10);
  padding:5px 12px;border-radius:var(--r-badge);
  margin-bottom:16px;
}
.article-head h1{
  font-size:38px;line-height:1.25;font-weight:800;letter-spacing:-.5px;
  max-width:900px;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 16px;
  margin-top:18px;font-size:13px;color:var(--tx-sub);
}
.badge-cat{
  display:inline-flex;align-items:center;
  font-size:13px;font-weight:600;
  color:var(--c-primary-hover);
  background:var(--c-primary-10);
  padding:4px 10px;border-radius:var(--r-badge);
}
.article-meta time{color:var(--tx-sub)}
.meta-divider{width:1px;height:12px;background:var(--bd-strong)}

/* ---------- layout ---------- */
.article-wrap{padding:12px 0 var(--sp-section)}
.article-shell{
  background:var(--bg-card);
  border:1px solid var(--bd);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:36px 40px 40px;
}
.post-body-wrap{max-width:760px}
.post-body{font-size:17px;line-height:1.9;color:var(--tx-main)}
.post-body > *:first-child{margin-top:0}
.post-body p{margin:0 0 1.2em}
.post-body h2{
  font-size:22px;line-height:1.4;font-weight:700;
  margin:34px 0 14px;
  padding-left:12px;
  border-left:3px solid var(--c-primary);
}
.post-body h3{font-size:18px;font-weight:600;margin:26px 0 10px}
.post-body h4{font-size:16px;font-weight:600;margin:20px 0 8px;color:var(--tx-sub)}
.post-body ul,.post-body ol{padding-left:1.5em;margin:0 0 1.2em}
.post-body ul{list-style:disc}
.post-body ol{list-style:decimal}
.post-body li{margin-bottom:.5em}
.post-body li::marker{color:var(--c-primary)}
.post-body blockquote{
  margin:22px 0;
  padding:16px 20px;
  background:var(--bg-soft);
  border-left:3px solid var(--c-primary);
  border-radius:0 12px 12px 0;
  color:var(--tx-sub);
  font-size:16px;
}
.post-body img{border-radius:12px;margin:20px auto;height:auto}
.post-body figure{margin:22px 0}
.post-body figcaption{font-size:13px;color:var(--tx-weak);text-align:center;margin-top:8px}
.post-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px}
.post-body th,.post-body td{padding:12px 14px;border-bottom:1px solid var(--bd);text-align:left}
.post-body thead th{background:var(--bg-soft);font-weight:600}
.post-body tbody tr:nth-child(odd){background:var(--bg-soft)}
.post-body code{background:var(--bg-soft);padding:2px 6px;border-radius:6px;font-size:15px}
.post-body pre{background:var(--bg-soft);padding:16px;border-radius:12px;overflow:auto;font-size:14px;line-height:1.7}
.post-body a{color:var(--c-primary-hover);border-bottom:1px solid var(--c-primary-soft)}
.post-body hr{border:0;border-top:1px solid var(--bd);margin:28px 0}
.empty-state{
  text-align:center;
  padding:64px 20px;
}
.empty-state .empty-icon{
  width:64px;height:64px;margin:0 auto 18px;
  border-radius:50%;
  background:var(--bg-soft);
  color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:26px;font-weight:800;
}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:10px}
.empty-state p{color:var(--tx-sub);margin-bottom:22px}

/* ---------- sidebar ---------- */
.sidebar{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--bg-card);
  border:1px solid var(--bd);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:22px 22px 20px;
}
.side-card h2{font-size:16px;font-weight:700;margin-bottom:14px}
.side-list{display:flex;flex-direction:column}
.side-list a{
  display:block;
  padding:11px 0;
  border-bottom:1px solid var(--bd);
  font-size:15px;
  color:var(--tx-main);
  line-height:1.5;
}
.side-list a:last-child{border-bottom:0}
.side-list a:hover{color:var(--c-primary)}
.side-list span{display:block;font-size:12px;color:var(--tx-weak);margin-top:2px}
.side-download{
  background:var(--c-secondary);
  border:0;
  color:var(--tx-invert);
  border-radius:var(--r-block);
  padding:26px 24px;
}
.side-download h2{color:var(--tx-invert);font-size:17px}
.side-download p{color:var(--tx-invert-72);font-size:14px;line-height:1.75;margin-bottom:18px}
.side-download .btn-x{width:100%}

/* ---------- post nav ---------- */
.post-nav{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-top:24px;
}
.post-nav a{
  display:block;
  background:var(--bg-card);
  border:1px solid var(--bd);
  border-radius:var(--r-card);
  padding:18px 20px;
  transition:all var(--ease);
}
.post-nav a:hover{border-color:var(--c-primary);box-shadow:var(--sh-2);transform:translateY(-3px)}
.post-nav .nav-label{display:block;font-size:12px;color:var(--tx-weak);margin-bottom:6px}
.post-nav .nav-title{font-size:15px;font-weight:600;line-height:1.5}
.post-nav .nav-right{text-align:right}

/* ---------- related ---------- */
.section-block{margin-top:56px}
.section-head{margin-bottom:22px}
.section-head h2{font-size:24px;font-weight:700;position:relative;padding-top:16px}
.section-head h2::before{
  content:"";position:absolute;top:0;left:0;width:32px;height:3px;border-radius:3px;background:var(--c-primary);
}
.related-grid{display:grid;grid-template-columns:1fr;gap:16px}
.related-item{
  display:flex;gap:16px;align-items:center;
  background:var(--bg-card);
  border:1px solid var(--bd);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:14px;
  transition:all var(--ease);
}
.related-item:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--bd-strong)}
.related-item img{
  width:132px;height:88px;flex:0 0 auto;
  object-fit:cover;border-radius:12px;background:var(--bg-soft);
}
.related-item h3{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:6px}
.related-item:hover h3{color:var(--c-primary)}
.related-item p{font-size:13px;color:var(--tx-sub);line-height:1.7;margin-bottom:6px}
.related-item .meta{font-size:12px;color:var(--tx-weak)}
.back-row{display:flex;justify-content:center;margin-top:36px}

/* ---------- cta ---------- */
.cta-band{
  background:var(--bg-soft);
  border-top:1px solid var(--bd);
  border-bottom:1px solid var(--bd);
  padding:44px 0;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-inner h2{font-size:22px;font-weight:700;margin-bottom:6px}
.cta-inner p{color:var(--tx-sub);font-size:15px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--c-secondary);color:var(--tx-invert);padding:64px 0 28px;margin-top:0}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-mark{background:var(--c-primary)}
.footer-brand .brand-name{color:var(--tx-invert)}
.footer-brand .brand-sub{color:rgba(255,248,242,.6)}
.footer-brand p{color:var(--tx-invert-72);font-size:14px;line-height:1.8;max-width:320px}
.footer-title{font-size:15px;font-weight:600;color:var(--tx-invert);margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--tx-invert-72);font-size:14px}
.footer-links a:hover{color:var(--tx-invert)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(255,248,242,.18);
  font-size:13px;color:rgba(255,248,242,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .nav-channels{gap:20px}
  .article-head h1{font-size:32px}
}
@media (max-width:991.98px){
  :root{--sp-section:56px}
  .nav-channels{display:none}
  .search-pill.is-open{width:190px}
  .article-shell{padding:28px 24px 32px}
  .sidebar{position:static;margin-top:28px}
  .article-head h1{font-size:28px}
}
@media (max-width:767.98px){
  .container-x{padding:0 16px}
  .article-head{padding:30px 0 20px}
  .article-head h1{font-size:26px}
  .article-shell{padding:24px 18px 28px}
  .post-body{font-size:16px}
  .post-body h2{font-size:20px}
  .post-nav{grid-template-columns:1fr}
  .post-nav .nav-right{text-align:left}
  .related-item{flex-direction:column;align-items:flex-start}
  .related-item img{width:100%;height:170px}
  .section-head h2{font-size:20px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:575.98px){
  .header-inner{gap:14px}
  .brand-sub{display:none}
  .btn-x{width:100%}
  .header-actions .btn-x{width:auto}
  .footer-grid{grid-template-columns:1fr}
  .crumbs .current{max-width:36%}
}

/* roulang page: category1 */
:root{
  --c-primary:#F26522;
  --c-primary-hover:#D9551A;
  --c-primary-soft:#FFE7D8;
  --c-primary-10:rgba(242,101,34,.10);
  --c-secondary:#0F3B33;
  --c-accent:#FFB020;
  --bg-page:#FFF8F2;
  --bg-band:#FDF1E7;
  --surface:#FFFFFF;
  --text-1:#1E1A17;
  --text-2:#6A5C52;
  --text-3:#9A8C82;
  --text-inv:#FFF8F2;
  --text-inv-2:rgba(255,248,242,.72);
  --border-1:#F0E2D6;
  --border-2:#E3D2C4;
  --ok:#1E9E6A;
  --warn:#E0A800;
  --err:#D64545;
  --r-card:16px;
  --r-band:24px;
  --r-pill:999px;
  --r-input:12px;
  --r-badge:8px;
  --sh-1:0 1px 2px rgba(30,26,23,.04),0 2px 8px rgba(30,26,23,.06);
  --sh-2:0 8px 24px rgba(30,26,23,.08);
  --sp-section:88px;
  --header-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background:var(--bg-page);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out}
a:hover{color:var(--c-primary)}
button{font-family:inherit;font-size:inherit}
ul,ol{padding-left:0;margin:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text-1)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
:focus-visible{outline:3px solid rgba(242,101,34,.35);outline-offset:2px;border-radius:6px}
.container-x{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1400px){
  .container-x{max-width:1280px}
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,248,242,.97);
  border-top:3px solid var(--c-primary);
  border-bottom:1px solid var(--border-1);
  transition:box-shadow .2s ease-out;
}
.site-header.scrolled{box-shadow:var(--sh-1)}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:var(--header-h);
  transition:height .2s ease-out;
}
.site-header.scrolled .header-inner{height:56px}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:34px;
  height:34px;
  border-radius:10px;
  background:var(--c-primary);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:17px;
  letter-spacing:0;
  box-shadow:0 4px 12px rgba(242,101,34,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:800;color:var(--text-1);letter-spacing:-.2px}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.2px}
.nav-channels{
  display:flex;
  align-items:center;
  gap:28px;
  font-size:15px;
}
.nav-channels a{
  position:relative;
  padding:6px 0;
  color:var(--text-2);
  white-space:nowrap;
}
.nav-channels a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .18s ease-out;
}
.nav-channels a:hover{color:var(--c-primary)}
.nav-channels a:hover::after{transform:scaleX(1)}
.nav-channels a.active{color:var(--c-primary);font-weight:600}
.nav-channels a.active::after{transform:scaleX(1)}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.search-wrap{display:flex;align-items:center;gap:8px}
.icon-btn{
  width:40px;
  height:40px;
  border-radius:50%;
  border:1px solid var(--border-2);
  background:var(--surface);
  color:var(--text-2);
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:all .18s ease-out;
}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);box-shadow:var(--sh-1)}
.search-inline{
  width:0;
  opacity:0;
  overflow:hidden;
  transition:width .22s ease-out,opacity .22s ease-out;
}
.search-inline.open{width:240px;opacity:1}
.search-inline input{
  width:100%;
  height:40px;
  border-radius:var(--r-pill);
  border:1px solid var(--border-2);
  background:var(--surface);
  padding:0 18px;
  font-size:14px;
  color:var(--text-1);
  outline:none;
}
.search-inline input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(242,101,34,.18)}
.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:var(--c-primary);
  color:#fff;
  border:1.5px solid var(--c-primary);
  border-radius:var(--r-pill);
  padding:12px 28px;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:all .18s ease-out;
  white-space:nowrap;
}
.btn-brand:hover{
  background:var(--c-primary-hover);
  border-color:var(--c-primary-hover);
  color:#fff;
  box-shadow:var(--sh-2);
  transform:translateY(-1px);
}
.btn-brand:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-brand-sm{padding:9px 20px;font-size:14px}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:transparent;
  color:var(--c-primary);
  border:1.5px solid var(--c-primary);
  border-radius:var(--r-pill);
  padding:12px 28px;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:all .18s ease-out;
  white-space:nowrap;
}
.btn-ghost:hover{background:var(--c-primary-10);color:var(--c-primary-hover);border-color:var(--c-primary-hover)}
.btn-inv{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:var(--text-inv);
  color:var(--c-secondary);
  border:1.5px solid var(--text-inv);
  border-radius:var(--r-pill);
  padding:12px 28px;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:all .18s ease-out;
  white-space:nowrap;
}
.btn-inv:hover{background:#fff;color:var(--c-secondary);box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-outline-inv{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:transparent;
  color:var(--text-inv);
  border:1.5px solid rgba(255,248,242,.55);
  border-radius:var(--r-pill);
  padding:12px 28px;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:all .18s ease-out;
  white-space:nowrap;
}
.btn-outline-inv:hover{border-color:var(--text-inv);background:rgba(255,248,242,.10);color:var(--text-inv)}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:12px;
  border:1px solid var(--border-2);
  background:var(--surface);
  cursor:pointer;
  padding:0;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1)}
.nav-toggle:hover{border-color:var(--c-primary)}
.nav-toggle:hover span{background:var(--c-primary)}

/* ============ 抽屉 ============ */
.drawer{
  width:84%;
  max-width:360px;
  background:var(--bg-page);
  border-left:1px solid var(--border-1);
}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px 20px;
  border-bottom:1px solid var(--border-1);
}
.drawer-nav{display:grid;gap:4px;padding:12px}
.drawer-nav a{
  display:flex;
  align-items:center;
  height:52px;
  padding:0 14px;
  border-radius:12px;
  font-size:16px;
  color:var(--text-1);
}
.drawer-nav a.active{background:var(--c-primary-10);color:var(--c-primary);font-weight:600}
.drawer-nav a:hover{background:var(--bg-band)}
.drawer-body{padding:8px 20px 32px}
.drawer-body .form-control-x{
  width:100%;
  height:48px;
  border-radius:var(--r-input);
  border:1px solid var(--border-2);
  background:var(--surface);
  padding:0 16px;
  font-size:15px;
  outline:none;
  margin-bottom:14px;
}
.drawer-body .form-control-x:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(242,101,34,.18)}
.drawer-body .btn-brand{width:100%}

/* ============ 通用板块 ============ */
.section{padding:var(--sp-section) 0}
.section-tight{padding:56px 0}
.section-band{background:var(--bg-band)}
.section-dark{background:var(--c-secondary);color:var(--text-inv)}
.sec-head{margin-bottom:40px;max-width:760px}
.sec-title{
  position:relative;
  padding-left:16px;
  font-size:28px;
  line-height:1.3;
  font-weight:700;
  letter-spacing:-.2px;
  margin-bottom:12px;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;
  top:7px;
  bottom:7px;
  width:3px;
  border-radius:2px;
  background:var(--c-primary);
}
.sec-sub{font-size:15px;color:var(--text-2);margin:0}
.section-dark .sec-title{color:var(--text-inv)}
.section-dark .sec-sub{color:var(--text-inv-2)}

/* ============ 小 Hero ============ */
.page-hero{
  position:relative;
  color:var(--text-inv);
  background:linear-gradient(rgba(15,59,51,.82),rgba(15,59,51,.82)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:52px 0 60px;
  overflow:hidden;
}
.breadcrumb-x{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-inv-2);
  margin-bottom:20px;
}
.breadcrumb-x a{color:var(--text-inv-2)}
.breadcrumb-x a:hover{color:var(--text-inv)}
.breadcrumb-x .sep{opacity:.5}
.page-hero h1{
  color:var(--text-inv);
  font-size:38px;
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.5px;
  margin-bottom:14px;
}
.page-hero .hero-lead{
  font-size:16px;
  color:var(--text-inv-2);
  max-width:640px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 分类切换 ============ */
.cat-tabs-wrap{padding-top:32px}
.cat-tabs{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.cat-tabs a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 22px;
  border-radius:var(--r-pill);
  border:1px solid var(--border-2);
  background:var(--surface);
  font-size:15px;
  color:var(--text-2);
  transition:all .18s ease-out;
}
.cat-tabs a:hover{border-color:var(--c-primary);color:var(--c-primary);box-shadow:var(--sh-1)}
.cat-tabs a.active{
  background:var(--c-primary);
  border-color:var(--c-primary);
  color:#fff;
  font-weight:600;
  box-shadow:0 6px 18px rgba(242,101,34,.24);
}

/* ============ 图文分栏 ============ */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.split + .split{margin-top:56px}
.split.reverse .split-media{order:2}
.media{
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--bg-band);
  box-shadow:var(--sh-1);
  aspect-ratio:16/10;
}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.media:hover img{transform:scale(1.03)}
.split-body h3{font-size:22px;line-height:1.4;font-weight:700;margin-bottom:14px}
.split-body p{color:var(--text-2);font-size:16px;margin-bottom:14px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.tag{
  display:inline-block;
  padding:5px 12px;
  border-radius:var(--r-badge);
  background:var(--c-primary-10);
  color:var(--c-primary);
  font-size:13px;
  font-weight:600;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--c-primary);
  font-weight:600;
  font-size:15px;
}
.text-link:hover{color:var(--c-primary-hover);gap:10px}

/* ============ 时间轴 ============ */
.timeline{
  position:relative;
  margin-top:8px;
}
.timeline li{
  position:relative;
  padding:0 0 32px 44px;
}
.timeline li::before{
  content:"";
  position:absolute;
  left:5px;
  top:6px;
  width:16px;
  height:16px;
  border-radius:50%;
  background:var(--surface);
  border:3px solid var(--c-primary);
  box-sizing:content-box;
  z-index:2;
}
.timeline li::after{
  content:"";
  position:absolute;
  left:12px;
  top:26px;
  bottom:0;
  width:2px;
  background:var(--border-2);
}
.timeline li:last-child{padding-bottom:0}
.timeline li:last-child::after{display:none}
.tl-step{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  color:var(--c-primary);
  letter-spacing:1px;
  margin-bottom:4px;
}
.tl-title{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:6px}
.tl-desc{color:var(--text-2);font-size:15px;margin:0}

/* ============ 清单 + 规格 ============ */
.check-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px 32px;
  margin-top:8px;
}
.check-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:15px;
  color:var(--text-2);
  line-height:1.7;
}
.check-list li::before{
  content:"\2713";
  flex-shrink:0;
  width:20px;
  height:20px;
  margin-top:3px;
  border-radius:50%;
  background:var(--c-primary-10);
  color:var(--c-primary);
  font-size:12px;
  font-weight:800;
  display:flex;
  align-items:center;
  justify-content:center;
}
.stat-band{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  background:var(--bg-band);
  border-radius:var(--r-band);
  padding:38px 32px;
  margin-top:40px;
}
.stat-item{position:relative;padding-left:18px}
.stat-item::before{
  content:"";
  position:absolute;
  left:0;
  top:8px;
  bottom:8px;
  width:3px;
  border-radius:2px;
  background:var(--c-primary);
}
.stat-num{
  font-size:32px;
  font-weight:800;
  line-height:1.2;
  color:var(--c-primary);
  letter-spacing:-.5px;
}
.stat-label{font-size:14px;color:var(--text-2);margin-top:2px}

/* ============ FAQ ============ */
.faq-acc{max-width:860px}
.faq-acc .accordion-item{
  border:0;
  border-bottom:1px solid var(--border-1);
  background:transparent;
  border-radius:0;
}
.faq-acc .accordion-item:first-of-type{border-top:1px solid var(--border-1)}
.faq-acc .accordion-button{
  position:relative;
  background:transparent;
  box-shadow:none;
  border:0;
  border-radius:0;
  padding:22px 44px 22px 18px;
  min-height:56px;
  font-size:17px;
  font-weight:600;
  color:var(--text-1);
  line-height:1.5;
  transition:color .18s ease-out;
}
.faq-acc .accordion-button:not(.collapsed){
  background:transparent;
  color:var(--c-primary);
  box-shadow:none;
}
.faq-acc .accordion-button::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:3px;
  height:0;
  border-radius:2px;
  background:var(--c-primary);
  transition:height .2s ease-out;
}
.faq-acc .accordion-button:not(.collapsed)::before{height:22px}
.faq-acc .accordion-button::after{
  content:"+";
  display:block;
  position:absolute;
  right:8px;
  top:50%;
  transform:translateY(-50%);
  width:auto;
  height:auto;
  margin:0;
  background-image:none;
  font-size:22px;
  font-weight:400;
  line-height:1;
  color:var(--text-3);
  transition:color .18s ease-out;
}
.faq-acc .accordion-button:not(.collapsed)::after{content:"\2212";color:var(--c-primary)}
.faq-acc .accordion-button:focus{box-shadow:none;outline:none}
.faq-acc .accordion-button:focus-visible{outline:3px solid rgba(242,101,34,.35);outline-offset:2px}
.faq-acc .accordion-body{
  padding:0 44px 24px 18px;
  font-size:15.5px;
  color:var(--text-2);
  line-height:1.85;
}

/* ============ CTA ============ */
.cta-band{
  background:var(--c-secondary);
  color:var(--text-inv);
  border-radius:var(--r-band);
  padding:44px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{
  color:var(--text-inv);
  font-size:26px;
  font-weight:700;
  line-height:1.35;
  margin-bottom:8px;
}
.cta-band p{color:var(--text-inv-2);font-size:15px;margin:0;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-secondary);
  color:var(--text-inv-2);
  padding:64px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1fr;
  gap:40px;
}
.site-footer .brand{margin-bottom:16px}
.site-footer .brand-name{color:var(--text-inv)}
.site-footer .brand-sub{color:var(--text-inv-2)}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-inv-2);max-width:340px;margin:0}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:var(--text-inv);
  margin-bottom:16px;
}
.footer-links{display:grid;gap:10px;font-size:14px}
.footer-links a{color:var(--text-inv-2)}
.footer-links a:hover{color:var(--text-inv)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:8px 24px;
  justify-content:space-between;
  align-items:center;
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(255,248,242,.16);
  font-size:13px;
  color:var(--text-inv-2);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .split{gap:40px}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 24px}
}
@media (max-width:991.98px){
  :root{--sp-section:64px}
  .nav-channels{display:none}
  .nav-toggle{display:flex}
  .search-wrap{display:none}
  .page-hero h1{font-size:30px}
  .split{grid-template-columns:1fr;gap:28px}
  .split.reverse .split-media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  :root{--sp-section:56px}
  .container-x{padding:0 16px}
  .header-cta{display:none}
  .brand-sub{display:none}
  .page-hero{padding:40px 0 48px}
  .page-hero h1{font-size:26px}
  .page-hero .hero-lead{font-size:15px}
  .sec-title{font-size:22px}
  .sec-head{margin-bottom:28px}
  .cta-band{padding:32px 24px;border-radius:20px}
  .cta-band h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn-brand,.cta-actions .btn-inv,.cta-actions .btn-outline-inv{width:100%}
  .hero-actions{width:100%}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%}
  .timeline li{padding-left:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  body{font-size:15.5px}
  .check-list{grid-template-columns:1fr}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));padding:26px 20px;border-radius:20px}
  .stat-num{font-size:26px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .faq-acc .accordion-button{font-size:16px;padding-right:38px}
  .faq-acc .accordion-body{padding-right:16px}
  .cat-tabs a{padding:9px 16px;font-size:14px}
}

/* roulang page: category2 */
:root{
  --c-primary:#F26522;
  --c-primary-hover:#D9551A;
  --c-primary-soft:#FFE7D8;
  --c-primary-10:rgba(242,101,34,.10);
  --c-secondary:#0F3B33;
  --c-accent:#FFB020;
  --bg-page:#FFF8F2;
  --bg-card:#FFFFFF;
  --bg-band:#FDF1E7;
  --bg-dark:#0F3B33;
  --t-main:#1E1A17;
  --t-sub:#6A5C52;
  --t-mute:#9A8C82;
  --t-invert:#FFF8F2;
  --t-invert-72:rgba(255,248,242,.72);
  --bd:#F0E2D6;
  --bd-strong:#E3D2C4;
  --ok:#1E9E6A;
  --warn:#E0A800;
  --err:#D64545;
  --r-card:16px;
  --r-dark:24px;
  --r-pill:999px;
  --r-input:12px;
  --r-badge:8px;
  --sh-1:0 1px 2px rgba(30,26,23,.04),0 2px 8px rgba(30,26,23,.06);
  --sh-2:0 8px 24px rgba(30,26,23,.08);
  --sp-section:88px;
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--t-main);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--c-primary)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(242,101,34,.32);outline-offset:2px;border-radius:6px}

.container-x{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1400px){ .container-x{max-width:1280px} }

.topline{height:3px;background:var(--c-primary)}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,248,242,.92);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease-out,background .2s ease-out,border-color .2s ease-out;
}
.site-header.is-stuck{
  background:rgba(255,255,255,.94);
  box-shadow:var(--sh-1);
  border-bottom-color:var(--bd);
}
.header-inner{
  height:64px;
  display:flex;
  align-items:center;
  gap:24px;
  transition:height .2s ease-out;
}
.site-header.is-stuck .header-inner{height:56px}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  background:linear-gradient(140deg,var(--c-primary),#FF8A4C);
  color:#fff;font-weight:800;font-size:18px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(242,101,34,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.2px;color:var(--t-main)}
.brand-sub{font-size:11px;color:var(--t-mute);letter-spacing:.2px}

.nav-channels{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-channels a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--t-sub);
  padding:6px 0;
}
.nav-channels a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-primary);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease-out;
}
.nav-channels a:hover{color:var(--t-main)}
.nav-channels a:hover::after{transform:scaleX(1)}
.nav-channels a.active{color:var(--c-primary);font-weight:600}
.nav-channels a.active::after{transform:scaleX(1)}

.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;
  border:1px solid var(--bd);
  background:#fff;
  border-radius:var(--r-pill);
  padding:0 14px;
  height:40px;
  width:240px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(242,101,34,.18)}
.nav-search i{color:var(--t-mute);font-size:13px}
.nav-search input{
  border:0;outline:0;background:transparent;width:100%;
  font-size:14px;color:var(--t-main);
}
.nav-search input::placeholder{color:var(--t-mute)}

.btn-main,.btn-ghost,.btn-invert{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  padding:12px 28px;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-main{background:var(--c-primary);color:#fff;box-shadow:0 4px 14px rgba(242,101,34,.22)}
.btn-main:hover{background:var(--c-primary-hover);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-main:active{transform:translateY(0);box-shadow:0 2px 8px rgba(242,101,34,.2)}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-10);color:var(--c-primary-hover)}
.btn-invert{background:var(--t-invert);color:var(--c-secondary)}
.btn-invert:hover{background:#fff;color:var(--c-secondary);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-outline-invert{background:transparent;border-color:rgba(255,248,242,.5);color:var(--t-invert)}
.btn-outline-invert:hover{border-color:var(--t-invert);color:#fff;background:rgba(255,248,242,.08)}
.btn-sm{padding:9px 20px;font-size:14px}

.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--bd);background:#fff;
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle i{font-size:17px;color:var(--t-main)}

/* ---------- drawer ---------- */
.drawer{width:84%!important;max-width:340px;background:var(--bg-page);border-left:1px solid var(--bd)}
.drawer .offcanvas-header{border-bottom:1px solid var(--bd);padding:16px 20px}
.drawer .btn-close{opacity:.55}
.drawer-body{padding:8px 20px 28px;display:flex;flex-direction:column;gap:18px}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  height:52px;display:flex;align-items:center;
  border-bottom:1px solid var(--bd);
  font-size:15px;color:var(--t-sub);
}
.drawer-nav a.active{color:var(--c-primary);font-weight:600}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:48px;
  border:1px solid var(--bd);background:#fff;border-radius:var(--r-input);padding:0 14px;
}
.drawer-search input{border:0;outline:0;background:transparent;width:100%;font-size:14px}

/* ---------- category tabs ---------- */
.cat-tabs{background:var(--bg-band);border-bottom:1px solid var(--bd)}
.cat-tabs-inner{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:14px 0}
.cat-tabs .tab-label{font-size:13px;color:var(--t-mute);margin-right:4px}
.cat-tab{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--bd);
  font-size:14px;color:var(--t-sub);
}
.cat-tab:hover{border-color:var(--c-primary);color:var(--c-primary)}
.cat-tab.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}
.cat-tab.active:hover{color:#fff}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;
  overflow:hidden;
  border-radius:0 0 var(--r-dark) var(--r-dark);
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  color:var(--t-invert);
  padding:64px 0 72px;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(15,59,51,.92) 0%,rgba(15,59,51,.72) 55%,rgba(15,59,51,.58) 100%);
}
.cat-hero .container-x{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t-invert-72);margin-bottom:18px}
.crumb a{color:var(--t-invert-72)}
.crumb a:hover{color:#fff}
.crumb span.sep{opacity:.6}
.cat-hero h1{
  font-size:38px;line-height:1.25;font-weight:800;letter-spacing:-.5px;
  max-width:820px;
}
.cat-hero .hero-sub{
  margin-top:14px;
  font-size:16px;
  color:var(--t-invert-72);
  max-width:640px;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-badge);
  background:rgba(255,248,242,.12);
  border:1px solid rgba(255,248,242,.22);
  font-size:13px;color:var(--t-invert);
}
.hero-badge i{color:var(--c-accent);font-size:12px}

/* ---------- sections ---------- */
.section{padding:var(--sp-section) 0}
.section.tight{padding:64px 0}
.section.band{background:var(--bg-band)}
.section-head{margin-bottom:36px}
.section-head h2{
  font-size:28px;line-height:1.3;font-weight:700;letter-spacing:-.3px;
  padding-left:16px;position:relative;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;
  background:var(--c-primary);border-radius:3px;
}
.section-head p{margin-top:10px;color:var(--t-sub);font-size:15px;max-width:720px;padding-left:16px}

.lead-p{color:var(--t-sub);font-size:16px}

/* ---------- compare table ---------- */
.table-wrap{
  background:var(--bg-card);
  border:1px solid var(--bd);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.table-scroll{overflow-x:auto}
table.cmp{
  width:100%;min-width:760px;border-collapse:collapse;
}
table.cmp thead th{
  background:var(--c-secondary);
  color:var(--t-invert);
  font-size:14px;font-weight:600;text-align:left;
  padding:16px 20px;
  white-space:nowrap;
}
table.cmp tbody td{
  padding:18px 20px;
  font-size:14.5px;
  color:var(--t-sub);
  border-bottom:1px solid var(--bd);
  vertical-align:top;
}
table.cmp tbody tr:nth-child(even) td{background:var(--bg-band)}
table.cmp tbody tr:last-child td{border-bottom:0}
table.cmp td:first-child{
  color:var(--t-main);font-weight:600;font-size:15px;
}
table.cmp td:first-child span{
  display:block;font-weight:400;font-size:13px;color:var(--t-mute);margin-top:4px;
}
.table-note{
  font-size:13px;color:var(--t-mute);
  padding:14px 20px;border-top:1px solid var(--bd);
  background:#fff;
}

/* ---------- feature rows ---------- */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.split.reverse .split-media{order:2}
.split-media{
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--bg-band);
  border:3px solid var(--c-primary);
  box-shadow:var(--sh-2);
  aspect-ratio:16/10;
}
.split-media img{width:100%;height:100%;object-fit:cover}
.split-body h2{
  font-size:26px;font-weight:700;line-height:1.35;letter-spacing:-.3px;
}
.split-body > p{margin-top:14px;color:var(--t-sub)}
.check-list{
  display:grid;grid-template-columns:1fr 1fr;gap:12px 24px;margin-top:24px;
}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--t-sub)}
.check-list li i{color:var(--c-primary);font-size:13px;margin-top:6px}
.check-list li b{color:var(--t-main);font-weight:600}

.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 14px;border-radius:var(--r-badge);
  background:var(--c-primary-10);color:var(--c-primary);
  font-size:13px;font-weight:500;
}

/* ---------- stats ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;background:var(--bd);
  border:1px solid var(--bd);border-radius:var(--r-card);overflow:hidden;
}
.stat{background:var(--bg-band);padding:28px 24px}
.stat .num{
  font-size:34px;font-weight:800;color:var(--c-accent);line-height:1.1;letter-spacing:-1px;
  font-variant-numeric:tabular-nums;
}
.stat .lbl{margin-top:8px;font-size:14.5px;color:var(--t-main);font-weight:600}
.stat .sub{margin-top:4px;font-size:13px;color:var(--t-mute)}

/* ---------- card grid ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.info-card{
  background:var(--bg-card);
  border:1px solid var(--bd);
  border-left:2px solid var(--c-primary);
  border-radius:var(--r-card);
  padding:26px 26px 24px;
  box-shadow:var(--sh-1);
  transition:box-shadow .18s ease-out,transform .18s ease-out;
}
.info-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.info-card h3{font-size:18px;font-weight:600;line-height:1.45}
.info-card p{margin-top:10px;font-size:14.5px;color:var(--t-sub)}
.info-card .meta{margin-top:16px;font-size:13px;color:var(--t-mute);display:flex;gap:14px;flex-wrap:wrap}

/* ---------- faq ---------- */
.faq-acc .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--bd);
}
.faq-acc .accordion-item:last-child{border-bottom:0}
.faq-acc .accordion-button{
  background:transparent;
  box-shadow:none;
  padding:18px 44px 18px 0;
  min-height:56px;
  font-size:16.5px;font-weight:600;color:var(--t-main);
  border-radius:0;
}
.faq-acc .accordion-button::after{
  content:"";width:8px;height:8px;
  background-image:none;
  border-right:2px solid var(--t-mute);
  border-bottom:2px solid var(--t-mute);
  transform:rotate(45deg);
  transition:transform .2s ease-out,border-color .2s ease-out;
  margin-left:auto;position:absolute;right:8px;top:26px;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-primary);background:transparent}
.faq-acc .accordion-button:not(.collapsed)::after{
  border-color:var(--c-primary);transform:rotate(-135deg);top:30px;
}
.faq-acc .accordion-body{
  padding:0 60px 22px 16px;
  font-size:15px;color:var(--t-sub);
  border-left:3px solid var(--c-primary);
  margin-left:0;
}
.faq-wrap{background:var(--bg-card);border:1px solid var(--bd);border-radius:var(--r-card);padding:8px 28px;box-shadow:var(--sh-1)}

/* ---------- dark cta ---------- */
.cta-block{
  background:var(--c-secondary);
  border-radius:var(--r-dark);
  padding:44px 48px;
  color:var(--t-invert);
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;
  overflow:hidden;
}
.cta-block::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;
  border-radius:50%;background:rgba(242,101,34,.16);
}
.cta-block h2{font-size:26px;font-weight:700;line-height:1.35;position:relative;z-index:2}
.cta-block p{margin-top:8px;font-size:14.5px;color:var(--t-invert-72);position:relative;z-index:2}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2}
.cta-foot{
  margin-top:18px;text-align:center;font-size:13px;color:var(--t-mute);
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-dark);
  color:var(--t-invert);
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand-name{color:var(--t-invert)}
.footer-brand .brand-sub{color:rgba(255,248,242,.5)}
.footer-brand .brand-mark{background:linear-gradient(140deg,var(--c-primary),#FF8A4C)}
.footer-brand p{
  margin-top:18px;font-size:14px;color:var(--t-invert-72);max-width:320px;line-height:1.85;
}
.footer-title{font-size:15px;font-weight:600;color:var(--t-invert);margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:var(--t-invert-72)}
.footer-links a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,248,242,.14);
  padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,248,242,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .nav-search{width:180px}
  .nav-channels{gap:20px}
  .split{gap:40px}
}
@media (max-width:991.98px){
  :root{--sp-section:64px}
  .nav-channels,.nav-search{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-main{padding:10px 20px;font-size:14px}
  .split{grid-template-columns:1fr;gap:28px}
  .split.reverse .split-media{order:0}
  .stats{grid-template-columns:repeat(2,1fr)}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-block{flex-direction:column;align-items:flex-start;padding:36px 32px}
  .cat-hero h1{font-size:30px}
}
@media (max-width:767.98px){
  .container-x{padding:0 16px}
  :root{--sp-section:56px}
  .cat-hero{padding:44px 0 52px}
  .cat-hero h1{font-size:26px}
  .cat-hero .hero-sub{font-size:15px}
  .section-head h2{font-size:22px}
  .split-body h2{font-size:22px}
  .check-list{grid-template-columns:1fr}
  .faq-acc .accordion-body{padding-right:16px}
  .faq-wrap{padding:4px 18px}
  table.cmp{min-width:640px}
}
@media (max-width:575.98px){
  .header-actions .btn-main{padding:9px 16px;font-size:13px}
  .brand-sub{display:none}
  .hero-badges{gap:8px}
  .hero-badge{font-size:12px;padding:6px 12px}
  .stats{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-block{padding:28px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-invert{width:100%}
  .btn-main,.btn-ghost{padding:12px 20px}
}

/* roulang page: category3 */
:root{
  --c-primary:#F26522;
  --c-primary-hover:#D9551A;
  --c-primary-soft:#FFE7D8;
  --c-primary-10:rgba(242,101,34,.10);
  --c-secondary:#0F3B33;
  --c-accent:#FFB020;
  --bg-page:#FFF8F2;
  --bg-card:#FFFFFF;
  --bg-band:#FDF1E7;
  --t-main:#1E1A17;
  --t-sub:#6A5C52;
  --t-weak:#9A8C82;
  --t-inverse:#FFF8F2;
  --t-inverse-2:rgba(255,248,242,.72);
  --c-line:#F0E2D6;
  --c-line-strong:#E3D2C4;
  --ok:#1E9E6A;
  --warn:#E0A800;
  --err:#D64545;
  --r-card:16px;
  --r-block:24px;
  --r-input:12px;
  --r-badge:8px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(30,26,23,.04), 0 2px 8px rgba(30,26,23,.06);
  --sh-2:0 8px 24px rgba(30,26,23,.08);
  --sp-section:88px;
  --sp-section-sm:56px;
  --tr:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--t-main);
  background:var(--bg-page);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--c-primary)}
button,input{font:inherit}
:focus-visible{outline:3px solid rgba(242,101,34,.35);outline-offset:2px;border-radius:6px}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container-x{max-width:1280px}}

/* top strip */
.top-strip{height:3px;background:var(--c-primary)}

/* header */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,248,242,.95);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--tr),background var(--tr);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);background:rgba(255,255,255,.96)}
.header-inner{display:flex;align-items:center;gap:28px;height:64px;transition:height var(--tr)}
.site-header.is-scrolled .header-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:var(--c-primary);color:#fff;font-weight:800;font-size:18px;
  display:flex;align-items:center;justify-content:center;letter-spacing:.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.2px;color:var(--t-main)}
.brand-sub{font-size:11px;color:var(--t-weak);letter-spacing:.2px}
.nav-channels{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-channels a{
  position:relative;font-size:15px;font-weight:500;color:var(--t-sub);
  padding:6px 0;
}
.nav-channels a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform var(--tr);border-radius:2px;
}
.nav-channels a:hover{color:var(--t-main)}
.nav-channels a:hover::after,.nav-channels a.active::after{transform:scaleX(1)}
.nav-channels a.active{color:var(--c-primary);font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-wrap{display:flex;align-items:center;position:relative}
.search-toggle{
  width:38px;height:38px;border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:#fff;color:var(--t-sub);cursor:pointer;transition:all var(--tr);
}
.search-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}
.search-form{
  display:none;align-items:center;gap:8px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-pill);padding:4px 6px 4px 16px;box-shadow:var(--sh-1);
}
.search-form.open{display:flex}
.search-form input{
  border:0;outline:none;width:200px;height:36px;background:transparent;font-size:14px;color:var(--t-main);
}
.search-form button{
  border:0;border-radius:var(--r-pill);background:var(--c-primary);color:#fff;
  padding:6px 16px;font-size:14px;font-weight:600;cursor:pointer;transition:background var(--tr);
}
.search-form button:hover{background:var(--c-primary-hover)}
.btn-pill{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--c-primary);color:#fff;border:0;border-radius:var(--r-pill);
  padding:12px 28px;font-size:15px;font-weight:600;cursor:pointer;
  transition:all var(--tr);
}
.btn-pill:hover{background:var(--c-primary-hover);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-pill:active{transform:translateY(0)}
.btn-pill.sm{padding:9px 20px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;border:1.5px solid var(--c-primary);color:var(--c-primary);
  border-radius:var(--r-pill);padding:11px 26px;font-size:15px;font-weight:600;cursor:pointer;
  transition:all var(--tr);
}
.btn-ghost:hover{background:var(--c-primary-10);color:var(--c-primary-hover);transform:translateY(-1px)}
.btn-inverse{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--t-inverse);color:var(--c-secondary);border:0;border-radius:var(--r-pill);
  padding:12px 28px;font-size:15px;font-weight:600;cursor:pointer;transition:all var(--tr);
}
.btn-inverse:hover{background:#fff;color:var(--c-secondary);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-outline-inverse{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;border:1.5px solid rgba(255,248,242,.6);color:var(--t-inverse);
  border-radius:var(--r-pill);padding:11px 26px;font-size:15px;font-weight:600;cursor:pointer;
  transition:all var(--tr);
}
.btn-outline-inverse:hover{border-color:var(--t-inverse);color:#fff;background:rgba(255,248,242,.10)}
.burger{
  display:none;width:38px;height:38px;border-radius:var(--r-input);border:1px solid var(--c-line);
  background:#fff;color:var(--t-main);cursor:pointer;
}
.burger:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* hero */
.hero-cat{
  position:relative;
  min-height:236px;
  display:flex;align-items:center;
  background-image:linear-gradient(rgba(15,59,51,.78),rgba(15,59,51,.78)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  color:var(--t-inverse);
  overflow:hidden;
}
.hero-cat::after{
  content:"";position:absolute;right:-80px;top:-80px;width:340px;height:340px;
  border:1.5px solid rgba(255,248,242,.25);border-radius:32px;transform:rotate(8deg);
  pointer-events:none;
}
.hero-cat .hero-inner{position:relative;z-index:1;padding:44px 0}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-primary-10);border:1px solid rgba(242,101,34,.5);
  color:#FFD9C2;border-radius:var(--r-badge);padding:4px 12px;font-size:13px;font-weight:600;
  margin-bottom:16px;
}
.hero-cat h1{
  font-size:34px;line-height:1.25;font-weight:800;letter-spacing:-.4px;margin:0 0 12px;
}
.hero-cat p{margin:0;font-size:16px;color:var(--t-inverse-2);max-width:640px}

/* breadcrumb */
.crumb-band{background:var(--bg-band);border-bottom:1px solid var(--c-line)}
.crumb-band .inner{height:48px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--t-sub)}
.crumb-band a{color:var(--t-sub)}
.crumb-band a:hover{color:var(--c-primary)}
.crumb-band .sep{color:var(--t-weak)}
.crumb-band .current{color:var(--t-main);font-weight:600}

/* tabs */
.cat-tabs{border-bottom:1px solid var(--c-line);background:var(--bg-page);position:sticky;top:64px;z-index:1020;transition:top var(--tr)}
.site-header.is-scrolled ~ * .cat-tabs{top:56px}
.cat-tabs .inner{display:flex;gap:10px;padding:14px 0;overflow-x:auto;scrollbar-width:none}
.cat-tabs .inner::-webkit-scrollbar{display:none}
.cat-tabs a{
  flex:0 0 auto;padding:8px 20px;border-radius:var(--r-pill);
  border:1px solid var(--c-line-strong);font-size:14px;font-weight:600;color:var(--t-sub);
  background:#fff;transition:all var(--tr);
}
.cat-tabs a:hover{border-color:var(--c-primary);color:var(--c-primary)}
.cat-tabs a.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* sections */
.section{padding:var(--sp-section) 0}
.section.tight{padding:56px 0}
.section.alt{background:var(--bg-band)}
.sec-head{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:32px}
.sec-title{position:relative;padding-left:16px;font-size:28px;line-height:1.3;font-weight:700;margin:0}
.sec-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--c-primary)}
.sec-desc{margin:8px 0 0 16px;color:var(--t-sub);font-size:15px}
.text-link{color:var(--c-primary);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px}
.text-link:hover{gap:10px;color:var(--c-primary-hover)}

/* waterfall cards */
.waterfall{column-count:2;column-gap:24px}
.wf-card{
  break-inside:avoid;
  background:var(--bg-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;margin-bottom:24px;position:relative;
  transition:box-shadow var(--tr),transform var(--tr),border-color var(--tr);
}
.wf-card::before{
  content:"";position:absolute;left:0;top:0;width:2px;height:44px;background:var(--c-primary);
  border-radius:0 2px 2px 0;
}
.wf-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--c-line-strong)}
.wf-thumb{aspect-ratio:16/10;object-fit:cover;width:100%;background:var(--bg-band)}
.wf-body{padding:22px}
.wf-body h3{font-size:18px;line-height:1.45;font-weight:600;margin:0 0 10px;transition:color var(--tr)}
.wf-card:hover h3{color:var(--c-primary)}
.wf-body p{margin:0 0 14px;color:var(--t-sub);font-size:15px;line-height:1.75}
.badge-tag{
  display:inline-block;border-radius:var(--r-badge);background:var(--c-primary-10);
  color:var(--c-primary);font-size:12px;font-weight:600;padding:4px 10px;
}
.meta-row{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--t-weak);margin-top:12px;flex-wrap:wrap}

/* sidebar */
.side-sticky{position:sticky;top:132px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--bg-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:24px;
}
.side-card h3{font-size:17px;font-weight:700;margin:0 0 16px;padding-left:12px;position:relative}
.side-card h3::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;border-radius:3px;background:var(--c-primary)}
.point-list{list-style:none;margin:0;padding:0}
.point-list li{display:flex;gap:10px;font-size:15px;color:var(--t-sub);padding:9px 0;border-bottom:1px dashed var(--c-line)}
.point-list li:last-child{border-bottom:0}
.point-list i{color:var(--c-primary);margin-top:5px;font-size:13px}
.side-dark{
  background:var(--c-secondary);color:var(--t-inverse);border-radius:var(--r-block);
  padding:26px 24px;border:0;
}
.side-dark h3{color:var(--t-inverse)}
.side-dark h3::before{background:var(--c-primary)}
.side-dark p{font-size:14px;color:var(--t-inverse-2);margin:0 0 18px}
.side-dark .btn-pill{width:100%}

/* stats */
.stat-band{
  background:var(--bg-band);border-radius:var(--r-block);padding:36px 32px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.stat-item .num{font-size:32px;font-weight:800;color:var(--c-accent);line-height:1.2;letter-spacing:-.5px}
.stat-item .label{font-size:14px;color:var(--t-sub);margin-top:6px}

/* faq */
.faq-wrap{max-width:880px}
.accordion-item{border:0;border-bottom:1px solid var(--c-line);background:transparent}
.accordion-button{
  background:transparent;box-shadow:none;font-size:16px;font-weight:600;color:var(--t-main);
  padding:18px 0 18px 16px;min-height:56px;position:relative;
}
.accordion-button::after{display:none}
.accordion-button::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;
  background:transparent;transition:background var(--tr);
}
.accordion-button:not(.collapsed){color:var(--c-primary);background:transparent;box-shadow:none}
.accordion-button:not(.collapsed)::before{background:var(--c-primary)}
.accordion-button:focus{box-shadow:none;outline:none}
.accordion-button .chev{margin-left:auto;color:var(--t-weak);font-size:14px;transition:transform var(--tr)}
.accordion-button:not(.collapsed) .chev{transform:rotate(180deg);color:var(--c-primary)}
.accordion-body{padding:0 0 20px 16px;color:var(--t-sub);font-size:15px;line-height:1.85}

/* cta block */
.cta-block{
  background:var(--c-secondary);color:var(--t-inverse);border-radius:var(--r-block);
  padding:40px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-block::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:260px;height:260px;
  border-radius:32px;border:1.5px solid rgba(242,101,34,.45);transform:rotate(8deg);
}
.cta-block h2{font-size:24px;font-weight:700;margin:0 0 8px;color:var(--t-inverse)}
.cta-block p{margin:0;font-size:14px;color:var(--t-inverse-2);max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}
.dl-row{display:flex;gap:12px;flex-wrap:wrap}

/* footer */
.site-footer{background:var(--c-secondary);color:var(--t-inverse);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand-name{color:var(--t-inverse)}
.footer-brand .brand-sub{color:var(--t-inverse-2)}
.footer-brand .brand-mark{background:var(--c-primary)}
.footer-brand p{margin:16px 0 0;font-size:14px;color:var(--t-inverse-2);line-height:1.8;max-width:320px}
.footer-title{font-size:15px;font-weight:600;color:var(--t-inverse);margin-bottom:16px}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:var(--t-inverse-2);transition:color var(--tr)}
.footer-links a:hover{color:#fff}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,248,242,.16);padding:20px 0;
  display:flex;justify-content:space-between;gap:16px;font-size:13px;color:var(--t-inverse-2);flex-wrap:wrap;
}

/* offcanvas */
.offcanvas{background:var(--bg-page)}
.offcanvas .oc-brand{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.oc-links{list-style:none;margin:0;padding:0}
.oc-links li{border-bottom:1px solid var(--c-line)}
.oc-links a{display:flex;align-items:center;height:52px;font-size:15px;font-weight:500;color:var(--t-sub)}
.oc-links a.active{color:var(--c-primary);font-weight:700}
.oc-search{display:flex;gap:8px;margin:20px 0}
.oc-search input{
  flex:1;height:48px;border:1px solid var(--c-line);border-radius:var(--r-input);
  padding:0 14px;font-size:14px;background:#fff;
}
.oc-search input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(242,101,34,.20)}

/* responsive */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:991px){
  :root{--sp-section:64px}
  .nav-channels{display:none}
  .search-wrap{display:none}
  .burger{display:inline-flex;align-items:center;justify-content:center}
  .header-actions .btn-pill{display:none}
  .hero-cat h1{font-size:28px}
  .hero-cat::after{display:none}
  .cat-tabs{top:64px}
  .waterfall{column-count:1}
  .side-sticky{position:static;margin-top:32px}
  .stat-band{grid-template-columns:repeat(2,1fr)}
  .cta-block{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:575px){
  .container-x{padding-left:16px;padding-right:16px}
  .hero-cat{min-height:200px}
  .hero-cat h1{font-size:24px}
  .hero-cat .hero-inner{padding:32px 0}
  .sec-title{font-size:22px}
  .stat-band{padding:24px 20px;gap:18px}
  .stat-item .num{font-size:26px}
  .btn-pill,.btn-ghost,.btn-inverse,.btn-outline-inverse{width:100%}
  .dl-row{flex-direction:column;width:100%}
  .cta-actions{width:100%;flex-direction:column}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category4 */
:root{
  --c-primary:#F26522;
  --c-primary-hover:#D9551A;
  --c-primary-soft:#FFE7D8;
  --c-primary-10:rgba(242,101,34,.10);
  --c-secondary:#0F3B33;
  --c-secondary-2:#14544A;
  --c-accent:#FFB020;
  --bg-page:#FFF8F2;
  --bg-card:#FFFFFF;
  --bg-soft:#FDF1E7;
  --text-1:#1E1A17;
  --text-2:#6A5C52;
  --text-3:#9A8C82;
  --text-inv:#FFF8F2;
  --text-inv-72:rgba(255,248,242,.72);
  --border:#F0E2D6;
  --border-strong:#E3D2C4;
  --ok:#1E9E6A;
  --warn:#E0A800;
  --err:#D64545;
  --r-card:16px;
  --r-dark:24px;
  --r-pill:999px;
  --r-input:12px;
  --r-badge:8px;
  --sh-1:0 1px 2px rgba(30,26,23,.04), 0 2px 8px rgba(30,26,23,.06);
  --sh-2:0 8px 24px rgba(30,26,23,.08);
  --section-y:88px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background:var(--bg-page);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--c-primary);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text-1);letter-spacing:-.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(242,101,34,.30);outline-offset:2px;border-radius:6px;}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
@media (min-width:1400px){:root{--container:1280px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,248,242,.92);
  backdrop-filter:saturate(1.2) blur(6px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--c-primary);
}
.site-header.scrolled{box-shadow:var(--sh-1);background:rgba(255,255,255,.94);}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;}
.site-header.scrolled .header-inner{height:56px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(140deg,var(--c-primary),#FF8B4D);
  color:#fff;font-weight:800;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 10px rgba(242,101,34,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:800;color:var(--text-1);letter-spacing:-.3px;}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.4px;}
.brand:hover .brand-name{color:var(--c-primary);}
.nav-channels{display:flex;align-items:center;gap:28px;margin-left:8px;}
.nav-channels a{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;white-space:nowrap;
}
.nav-channels a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;
}
.nav-channels a:hover{color:var(--text-1);}
.nav-channels a:hover::after{transform:scaleX(1);}
.nav-channels a.active{color:var(--c-primary);font-weight:600;}
.nav-channels a.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-wrap{position:relative;display:flex;align-items:center;}
.search-toggle{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--border);
  background:#fff;color:var(--text-2);display:flex;align-items:center;justify-content:center;
  transition:all .18s ease-out;
}
.search-toggle:hover{color:var(--c-primary);border-color:var(--c-primary);}
.search-panel{
  position:absolute;right:44px;top:50%;transform:translateY(-50%) scaleX(.9);
  transform-origin:right center;opacity:0;pointer-events:none;
  display:flex;align-items:center;gap:8px;
  width:240px;background:#fff;border:1px solid var(--border-strong);
  border-radius:var(--r-pill);padding:4px 6px 4px 14px;
  transition:all .2s ease-out;
}
.search-panel.open{opacity:1;pointer-events:auto;transform:translateY(-50%) scaleX(1);}
.search-panel input{
  border:0;outline:0;background:transparent;font-size:14px;width:100%;color:var(--text-1);height:30px;
}
.search-panel button{
  border:0;background:var(--c-primary);color:#fff;width:30px;height:30px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.menu-toggle{
  display:none;width:38px;height:38px;border-radius:12px;border:1px solid var(--border);
  background:#fff;color:var(--text-1);align-items:center;justify-content:center;
}

/* ---------- buttons ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:12px 28px;border-radius:var(--r-pill);
  border:1.5px solid transparent;cursor:pointer;
  transition:all .18s ease-out;white-space:nowrap;
}
.btn-primary-x{background:var(--c-primary);color:#fff;box-shadow:0 2px 8px rgba(242,101,34,.24);}
.btn-primary-x:hover{background:var(--c-primary-hover);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px);}
.btn-primary-x:active{transform:translateY(0);}
.btn-ghost-x{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost-x:hover{background:rgba(242,101,34,.08);color:var(--c-primary-hover);}
.btn-inv-x{background:var(--text-inv);color:var(--c-secondary);}
.btn-inv-x:hover{background:#fff;color:var(--c-secondary);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-outline-inv-x{background:transparent;border-color:rgba(255,248,242,.5);color:var(--text-inv);}
.btn-outline-inv-x:hover{border-color:var(--text-inv);color:#fff;background:rgba(255,248,242,.10);}
.btn-sm-x{padding:11px 22px;font-size:14px;}
.header-actions .btn-x{padding:10px 20px;font-size:14px;}
.btn-x[disabled]{opacity:.5;pointer-events:none;}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;background:var(--c-secondary);
  border-radius:0 0 var(--r-dark) var(--r-dark);
}
.cat-hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.40;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(15,59,51,.94) 0%,rgba(15,59,51,.82) 46%,rgba(15,59,51,.62) 100%);
}
.cat-hero-inner{position:relative;z-index:2;padding:44px 0 46px;min-height:224px;display:flex;flex-direction:column;justify-content:center;}
.breadcrumb-x{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-inv-72);margin-bottom:14px;}
.breadcrumb-x a{color:var(--text-inv-72);}
.breadcrumb-x a:hover{color:#fff;}
.breadcrumb-x .sep{opacity:.5;}
.breadcrumb-x .cur{color:#fff;}
.cat-hero h1{
  color:#fff;font-size:34px;line-height:1.25;font-weight:800;letter-spacing:-.5px;max-width:820px;
}
.cat-hero .hero-sub{color:var(--text-inv-72);font-size:16px;margin-top:14px;max-width:660px;}
.hero-tagline{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.tag-x{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:500;color:#fff;
  background:rgba(255,248,242,.14);border:1px solid rgba(255,248,242,.22);
  padding:6px 13px;border-radius:var(--r-pill);
}
.tag-x i{color:var(--c-accent);font-size:12px;}

/* ---------- category tabs ---------- */
.cat-tabs-band{background:var(--bg-soft);border-bottom:1px solid var(--border);}
.cat-tabs{display:flex;flex-wrap:wrap;gap:10px;padding:16px 0;}
.cat-tabs a{
  font-size:14px;font-weight:500;color:var(--text-2);
  padding:9px 20px;border-radius:var(--r-pill);
  border:1px solid var(--border-strong);background:#fff;
  transition:all .18s ease-out;
}
.cat-tabs a:hover{color:var(--c-primary);border-color:var(--c-primary);}
.cat-tabs a.active{background:var(--c-primary);color:#fff;border-color:var(--c-primary);box-shadow:0 2px 8px rgba(242,101,34,.24);}

/* ---------- section base ---------- */
.section{padding:var(--section-y) 0;}
.section.tight{padding:64px 0;}
.section-soft{background:var(--bg-soft);}
.section-dark{
  background:var(--c-secondary);color:var(--text-inv);
}
.section-dark .sec-title, .section-dark h2, .section-dark h3{color:#fff;}
.section-head{max-width:720px;margin-bottom:40px;}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary);letter-spacing:.6px;
  margin-bottom:12px;
}
.sec-eyebrow::before{content:"";width:24px;height:3px;border-radius:2px;background:var(--c-primary);}
.sec-title{position:relative;font-size:28px;line-height:1.3;font-weight:700;padding-left:16px;}
.sec-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:var(--c-primary);
}
.sec-desc{margin-top:14px;color:var(--text-2);font-size:16px;padding-left:16px;}
.section-dark .sec-desc{color:var(--text-inv-72);}

/* ---------- steps ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.step-card{
  position:relative;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-card);padding:26px 22px 24px;
  box-shadow:var(--sh-1);transition:all .18s ease-out;
}
.step-card::before{
  content:"";position:absolute;left:22px;top:0;width:2px;height:20px;background:var(--c-primary);
}
.step-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;
  background:var(--c-primary-10);color:var(--c-primary);
  font-weight:800;font-size:16px;margin-bottom:14px;
}
.step-card h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.step-card p{font-size:14px;color:var(--text-2);line-height:1.75;}
.step-line{
  position:absolute;top:44px;left:0;right:0;height:1px;background:var(--border-strong);z-index:0;
}
.steps-wrap{position:relative;}

/* ---------- split content ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.split.rev{grid-template-columns:.95fr 1.05fr;}
.split.rev .split-media{order:-1;}
.split-media{position:relative;}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);
  background:var(--bg-soft);box-shadow:var(--sh-1);
}
.split-media .frame-line{
  position:absolute;inset:-12px -12px auto auto;width:120px;height:120px;
  border:2px solid var(--c-primary);border-radius:var(--r-card);
  transform:rotate(8deg);opacity:.35;z-index:-1;
}
.split h2{font-size:26px;line-height:1.35;margin-bottom:16px;position:relative;padding-left:16px;}
.split h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:var(--c-primary);}
.split p{color:var(--text-2);font-size:16px;line-height:1.9;margin-bottom:14px;}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:12px 22px;margin-top:22px;}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-1);line-height:1.7;}
.check-list li i{color:var(--c-primary);font-size:14px;margin-top:6px;}
.note-box{
  margin-top:24px;background:var(--bg-soft);border-left:3px solid var(--c-primary);
  border-radius:0 var(--r-card) var(--r-card) 0;padding:16px 20px;
  font-size:14px;color:var(--text-2);line-height:1.8;
}

/* ---------- faq ---------- */
.faq-groups{display:grid;grid-template-columns:1fr;gap:12px;max-width:960px;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.faq-item:hover{border-color:var(--border-strong);}
.faq-item.open{border-color:var(--c-primary);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  display:flex;align-items:center;gap:16px;
  padding:0 22px;min-height:56px;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--text-1);
  position:relative;transition:color .18s ease-out;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:2px;
  background:var(--c-primary);transform:scaleY(0);transform-origin:center;transition:transform .2s ease-out;
}
.faq-item.open .faq-q{color:var(--c-primary);}
.faq-item.open .faq-q::before{transform:scaleY(1);}
.faq-q .q-index{
  flex-shrink:0;font-size:13px;font-weight:700;color:var(--c-primary);
  background:var(--c-primary-10);border-radius:var(--r-badge);padding:3px 8px;
}
.faq-q .q-icon{
  margin-left:auto;flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--border-strong);color:var(--text-2);
  display:flex;align-items:center;justify-content:center;font-size:12px;
  transition:all .2s ease-out;
}
.faq-item.open .q-icon{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out;}
.faq-a-inner{padding:0 22px 22px 68px;font-size:15px;color:var(--text-2);line-height:1.9;}
.faq-a-inner strong{color:var(--text-1);font-weight:600;}

/* ---------- spec bar ---------- */
.spec-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  background:var(--bg-soft);border:1px solid var(--border);
  border-radius:var(--r-dark);padding:32px 28px;
}
.spec-item{text-align:left;border-left:2px solid var(--border-strong);padding-left:18px;}
.spec-item .num{
  font-size:32px;font-weight:800;color:var(--c-accent);line-height:1.2;letter-spacing:-.5px;
}
.spec-item .num small{font-size:15px;font-weight:600;color:var(--text-2);margin-left:4px;}
.spec-item .label{font-size:14px;color:var(--text-2);margin-top:6px;}

/* ---------- dark cta ---------- */
.cta-band{padding:0 0 var(--section-y);}
.cta-box{
  background:var(--c-secondary);border-radius:var(--r-dark);
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-box::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(242,101,34,.30),transparent 65%);
}
.cta-copy{position:relative;z-index:2;max-width:620px;}
.cta-copy h2{color:#fff;font-size:25px;line-height:1.35;margin-bottom:10px;}
.cta-copy p{color:var(--text-inv-72);font-size:15px;}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-shrink:0;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-secondary);color:var(--text-inv);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,248,242,.55);}
.footer-brand p{color:var(--text-inv-72);font-size:14px;line-height:1.8;margin-top:16px;max-width:320px;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-links li{margin-bottom:11px;}
.footer-links a{font-size:14px;color:var(--text-inv-72);}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,248,242,.14);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,248,242,.55);
}

/* ---------- offcanvas ---------- */
.offcanvas-x{
  width:84% !important;max-width:340px;background:#fff;border:0;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--border);}
.drawer-nav{padding:8px 0;}
.drawer-nav a{
  display:flex;align-items:center;min-height:52px;padding:0 20px;
  font-size:15px;color:var(--text-1);border-bottom:1px solid var(--border);
}
.drawer-nav a.active{color:var(--c-primary);font-weight:600;background:var(--c-primary-10);}
.drawer-foot{padding:20px;}
.drawer-foot .btn-x{width:100%;}
.drawer-search{display:flex;gap:8px;padding:16px 20px 0;}
.drawer-search input{
  flex:1;height:44px;border:1px solid var(--border-strong);border-radius:var(--r-input);
  padding:0 14px;font-size:14px;outline:0;
}
.drawer-search input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(242,101,34,.20);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-channels{gap:20px;}
  .split{gap:40px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:991px){
  .nav-channels{display:none;}
  .menu-toggle{display:flex;}
  .header-actions .btn-x{display:none;}
  .split,.split.rev{grid-template-columns:1fr;gap:32px;}
  .split.rev .split-media{order:0;}
  .steps-grid{grid-template-columns:repeat(2,1fr);}
  .step-line{display:none;}
  .spec-bar{grid-template-columns:repeat(2,1fr);gap:22px;}
  .cat-hero h1{font-size:28px;}
  .cta-box{flex-direction:column;align-items:flex-start;padding:34px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  :root{--section-y:56px;}
  .container-x{padding:0 16px;}
  .section.tight{padding:48px 0;}
  .hero{padding:0;}
  .cat-hero-inner{padding:32px 0 36px;min-height:auto;}
  .cat-hero h1{font-size:25px;}
  .cat-hero .hero-sub{font-size:15px;}
  .sec-title{font-size:22px;}
  .split h2{font-size:21px;}
  .check-list{grid-template-columns:1fr;}
  .spec-bar{grid-template-columns:1fr 1fr;padding:24px 20px;}
  .spec-item .num{font-size:26px;}
  .faq-a-inner{padding:0 18px 20px 18px;}
  .faq-q{padding:0 18px;font-size:15px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn-x{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .search-panel{display:none;}
}
@media (max-width:575px){
  .steps-grid{grid-template-columns:1fr;}
  .cat-tabs a{font-size:13px;padding:8px 15px;}
  .cta-box{padding:28px 20px;}
  .cta-copy h2{font-size:21px;}
}