/* roulang page: index */
:root{
  --brand:#FF5A1F;
  --brand-hover:#E84A12;
  --brand-active:#CC3F0B;
  --focus-ring:0 0 0 3px rgba(255,90,31,.28);
  --accent:#C8F135;
  --ink:#12151A;
  --ink-2:#1B2027;
  --ink-text:#F5F6F7;
  --ink-muted:#9AA3AD;
  --ink-line:rgba(255,255,255,.10);
  --page:#F7F8F7;
  --surface:#FFFFFF;
  --surface-2:#F1F2F0;
  --line:#E4E6E9;
  --text:#1B1F24;
  --muted:#5C6470;
  --success:#1F9D55;
  --warning:#D98F00;
  --danger:#D64545;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,21,26,.04), 0 8px 24px rgba(18,21,26,.06);
  --sh-2:0 16px 36px rgba(18,21,26,.12);
  --sec-pad:88px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--page);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand)}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
button{font-family:inherit;border:0;background:none;cursor:pointer}
:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:6px}
.container{max-width:1240px;padding-left:24px;padding-right:24px;margin:0 auto}
@media (min-width:1400px){.container{max-width:1320px}}
.num{font-variant-numeric:tabular-nums;font-weight:600;font-family:system-ui,-apple-system,sans-serif}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 1px 2px rgba(18,21,26,.06),0 8px 20px rgba(18,21,26,.05)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:24px;transition:min-height .25s ease}
.site-header.scrolled .nav-inner{min-height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--ink);color:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;letter-spacing:.02em;
}
.brand-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:-.02em}
.nav-desktop{display:flex;align-items:center;gap:34px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--muted);padding:12px 2px}
.nav-link:hover{color:var(--text)}
.nav-link.active{color:var(--text);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:6px;width:100%;max-width:24px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-link.active::before{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:-2px;width:6px;height:6px;border-radius:50%;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:18px;flex:0 0 auto}
.link-cta{font-size:15px;font-weight:600;color:var(--brand);border-bottom:1px solid transparent;padding-bottom:2px}
.link-cta:hover{color:var(--brand-hover);border-bottom-color:var(--brand-hover)}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-btn);border:1px solid var(--line);
  color:var(--muted);display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;transition:all .2s ease;
}
.icon-btn:hover{color:var(--text);border-color:#c9ced4;background:var(--surface-2)}
.drawer-btn{display:none}
@media (max-width:991.98px){
  .nav-desktop{display:none}
  .drawer-btn{display:inline-flex}
  .nav-actions .icon-btn:not(.drawer-btn){display:none}
}
.mobile-drawer{background:#fff}
.mobile-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px}
.mobile-drawer .offcanvas-body{padding:14px 22px 26px;display:flex;flex-direction:column}
.m-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;font-size:17px;font-weight:500;color:var(--text);
  border-bottom:1px solid var(--line);
}
.m-link i{font-size:13px;color:var(--muted)}
.m-link.active{color:var(--brand)}
.m-drawer-cta{margin-top:26px}
.m-drawer-cta .btn-main{width:100%;justify-content:center}

/* ---------- buttons ---------- */
.btn-main,.btn-ghost,.btn-o,.btn-ghost-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;transition:all .2s ease;white-space:nowrap;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(255,90,31,.22)}
.btn-main:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px)}
.btn-main:active{background:var(--brand-active);transform:translateY(0)}
.btn-o{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.btn-o:hover{background:#FFF3EE;color:var(--brand-hover);border-color:var(--brand-hover);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-ghost-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.7)}
.btn-ghost-light:hover{background:rgba(255,255,255,.10);color:#fff;border-color:#fff;transform:translateY(-1px)}
.link-more{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{color:var(--brand-hover)}
.link-under{border-bottom:1px solid transparent;padding-bottom:1px}
.link-under:hover{border-bottom-color:currentColor}

/* ---------- tags ---------- */
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;font-weight:500;line-height:1;
}
.tag-cat{background:var(--surface-2);color:var(--muted)}
.tag-hot{background:var(--accent);color:var(--ink);font-weight:600}
.tag-soft{background:#FFF3EE;color:var(--brand);font-weight:600}

/* ---------- hero ---------- */
.hero{position:relative;background:#fff;overflow:hidden;padding:72px 0 0}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,rgba(18,21,26,.05) 0 1px,transparent 1px 14px);
  opacity:.5;
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--brand);background:#FFF3EE;border-radius:var(--r-pill);padding:6px 14px;margin-bottom:22px;
}
.hero h1{font-size:40px;line-height:1.25;font-weight:700;color:var(--text);margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--brand);position:relative}
.hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:8px;background:rgba(255,90,31,.14);border-radius:4px;z-index:-1}
.hero-sub{font-size:17px;color:var(--muted);margin-bottom:30px;max-width:520px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:38px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;border-top:1px solid var(--line);padding-top:26px}
.hs-item .hs-num{font-size:26px;color:var(--ink);line-height:1.2}
.hs-item .hs-num span{color:var(--brand);font-size:16px;margin-left:2px}
.hs-item .hs-label{font-size:13px;color:var(--muted);margin-top:4px}
.hero-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);aspect-ratio:4/3;background:var(--ink);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,21,26,.10) 0%,rgba(18,21,26,.35) 100%);
}
.hero-badge{
  position:absolute;left:18px;bottom:18px;z-index:3;
  background:rgba(18,21,26,.82);backdrop-filter:blur(6px);
  color:#fff;border-radius:var(--r-btn);padding:12px 16px;font-size:13px;line-height:1.5;
}
.hero-badge strong{display:block;font-size:15px;color:var(--accent);font-weight:700}

/* ---------- section ---------- */
.section{padding:var(--sec-pad) 0}
.section-alt{background:var(--page)}
.section-white{background:#fff}
.section-ink{background:var(--ink);color:var(--ink-text)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap}
.sec-head h2{font-size:30px;line-height:1.3}
.sec-head .sec-desc{font-size:15px;color:var(--muted);margin-top:10px;max-width:640px}
.section-ink .sec-head h2{color:#fff}
.section-ink .sec-desc{color:var(--ink-muted)}

/* ---------- product cards ---------- */
.product-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  box-shadow:var(--sh-1);
}
.product-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#d8dce1}
.pc-media{display:block;overflow:hidden;aspect-ratio:4/3;background:var(--surface-2)}
.pc-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.product-card:hover .pc-media img{transform:scale(1.03)}
.pc-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.pc-title{font-size:17px;line-height:1.5;font-weight:600}
.pc-title a{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pc-title a:hover{color:var(--brand)}
.pc-spec{font-size:13px;color:var(--muted)}
.pc-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:6px}
.pc-price{font-size:20px;color:var(--brand)}
.btn-add{
  display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 14px;
  border-radius:var(--r-btn);border:1px solid var(--line);color:var(--text);
  font-size:14px;font-weight:600;transition:all .2s ease;
}
.btn-add:hover{background:var(--brand);border-color:var(--brand);color:#fff}
@media (max-width:767.98px){
  .product-card:hover{transform:none;box-shadow:var(--sh-1)}
  .product-card:hover{border-color:var(--brand)}
}

/* ---------- reviews ---------- */
.review-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;height:100%;box-shadow:var(--sh-1);
}
.review-top{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.avatar{
  width:48px;height:48px;border-radius:50%;overflow:hidden;flex:0 0 auto;background:var(--surface-2);
}
.avatar img{width:100%;height:100%;object-fit:cover}
.review-name{font-size:15px;font-weight:600}
.review-role{font-size:13px;color:var(--muted)}
.stars{color:var(--accent);font-size:13px;letter-spacing:2px;margin-bottom:12px}
.review-text{font-size:15px;color:var(--text);line-height:1.8}
.carousel-indicators{bottom:-46px;margin:0}
.carousel-indicators [data-bs-target]{
  width:6px;height:6px;border-radius:50%;background:#d5d9de;border:0;opacity:1;margin:0 5px;
}
.carousel-indicators .active{background:var(--brand);width:20px;border-radius:var(--r-pill)}
.carousel-wrap{padding-bottom:52px}

/* ---------- guarantee ---------- */
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.guard-item{
  background:var(--surface-2);border-radius:var(--r-card);padding:24px 20px;
  display:flex;flex-direction:column;gap:10px;
}
.guard-item i{font-size:20px;color:var(--brand)}
.guard-item h3{font-size:15px;font-weight:600}
.guard-item p{font-size:12px;color:var(--muted);line-height:1.6}

/* ---------- news ---------- */
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;height:100%;display:flex;flex-direction:column;gap:12px;
  transition:transform .22s ease,box-shadow .22s ease;
  box-shadow:var(--sh-1);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-title{font-size:17px;line-height:1.5;font-weight:600}
.news-title a{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-excerpt{
  font-size:14px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:12px;border-top:1px solid var(--line)}
.news-date{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
  padding:56px 20px;text-align:center;color:var(--muted);
}
.empty-state i{font-size:26px;color:#c9ced4;display:block;margin-bottom:14px}

/* ---------- faq ---------- */
.faq-accordion .accordion-item{
  background:#fff;border:1px solid var(--line)!important;border-radius:var(--r-card)!important;
  margin-bottom:14px;overflow:hidden;
}
.faq-accordion .accordion-button{
  font-size:17px;font-weight:600;color:var(--text);background:#fff;
  padding:20px 22px;box-shadow:none;border-radius:var(--r-card)!important;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand);background:#fff}
.faq-accordion .accordion-button:focus{box-shadow:var(--focus-ring)}
.faq-accordion .accordion-button::after{
  width:14px;height:14px;background-size:14px;filter:invert(48%) sepia(76%) saturate(2400%) hue-rotate(348deg) brightness(101%) contrast(101%);
}
.faq-accordion .accordion-body{
  padding:0 22px 22px 25px;font-size:15px;line-height:1.8;color:var(--muted);
  border-left:3px solid var(--brand);margin-left:22px;
}

/* ---------- cta ---------- */
.cta-banner{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  background:var(--ink);color:#fff;padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(25deg,rgba(255,90,31,.18),rgba(200,241,53,.14));
}
.cta-banner::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.06) 0 1px,transparent 1px 16px);
}
.cta-text{position:relative;z-index:2;max-width:620px}
.cta-text h2{font-size:30px;line-height:1.3;color:#fff;margin-bottom:12px}
.cta-text p{font-size:15px;color:var(--ink-muted);line-height:1.8}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--ink-text);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:0}
.f-col{padding:0 32px;border-right:1px solid var(--ink-line)}
.f-col:first-child{padding-left:0}
.f-col:last-child{border-right:0;padding-right:0}
.f-logo{display:inline-flex;align-items:center;gap:10px;margin-bottom:18px}
.f-logo .brand-mark{background:var(--brand);color:#fff}
.f-logo .brand-text{color:#fff}
.f-about{font-size:14px;color:var(--ink-muted);line-height:1.85}
.f-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.f-list li{margin-bottom:11px}
.f-list a{font-size:14px;color:var(--ink-muted)}
.f-list a:hover{color:var(--accent)}
.f-contact li{font-size:14px;color:var(--ink-muted);margin-bottom:12px;display:flex;gap:10px;align-items:flex-start}
.f-contact i{color:var(--brand);margin-top:5px;font-size:13px}
.f-form{display:flex;gap:10px;margin-top:18px}
.f-form input{
  flex:1;height:44px;border-radius:var(--r-btn);border:1px solid var(--ink-line);
  background:var(--ink-2);color:#fff;padding:0 14px;font-size:14px;
}
.f-form input::placeholder{color:#74808c}
.f-form input:focus{outline:none;border-color:var(--brand);box-shadow:var(--focus-ring)}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--ink-line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--ink-muted)}
.back-top-link{font-size:13px;color:var(--ink-muted)}
.back-top-link:hover{color:var(--accent)}

/* ---------- back to top ---------- */
#backTop{
  position:fixed;right:24px;bottom:28px;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--brand);background:#fff;color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:15px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .25s ease;z-index:1040;box-shadow:var(--sh-1);
}
#backTop.show{opacity:1;visibility:visible;transform:translateY(0)}
#backTop:hover{background:var(--brand);color:#fff}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .hero h1{font-size:34px}
  .sec-head h2,.cta-text h2{font-size:26px}
}
@media (max-width:991.98px){
  :root{--sec-pad:64px}
  .hero{padding-top:48px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:-1;aspect-ratio:16/10}
  .footer-grid{grid-template-columns:1fr 1fr;gap:38px 0}
  .f-col{padding:0 22px}
  .f-col:nth-child(2){border-right:0;padding-right:0}
  .f-col:nth-child(3){padding-left:0;border-right:1px solid var(--ink-line)}
  .f-col:nth-child(4){padding-right:0;border-right:0}
  .guard-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767.98px){
  .container{padding-left:18px;padding-right:18px}
  :root{--sec-pad:44px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:16px}
  .hero-cta .btn-main,.hero-cta .btn-o{flex:1 1 100%}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:18px}
  .sec-head h2,.cta-text h2{font-size:23px}
  .cta-banner{padding:34px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-ghost-light{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:34px}
  .f-col{padding:0;border-right:0;border-bottom:1px solid var(--ink-line);padding-bottom:28px}
  .f-col:last-child{border-bottom:0;padding-bottom:0}
  .faq-accordion .accordion-body{margin-left:16px;padding-left:19px}
  #backTop{right:16px;bottom:18px}
}
@media (max-width:575.98px){
  .review-card{padding:20px}
  .pc-body{padding:16px}
}

/* roulang page: article */
:root{
  --brand:#FF5A1F;
  --brand-hover:#E84A12;
  --brand-active:#CC3F0B;
  --brand-ring:0 0 0 3px rgba(255,90,31,.28);
  --accent:#C8F135;
  --ink:#12151A;
  --ink-2:#1B2027;
  --page:#F7F8F7;
  --card:#FFFFFF;
  --gray-block:#F1F2F0;
  --border:#E4E6E9;
  --text:#1B1F24;
  --muted:#5C6470;
  --dark-text:#F5F6F7;
  --dark-muted:#9AA3AD;
  --dark-line:rgba(255,255,255,.10);
  --success:#1F9D55;
  --warn:#D98F00;
  --error:#D64545;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,21,26,.04), 0 8px 24px rgba(18,21,26,.06);
  --sh-2:0 16px 36px rgba(18,21,26,.12);
  --ease:.22s ease;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:var(--brand-ring);border-radius:8px;}
.num{font-variant-numeric:tabular-nums;font-weight:600;font-family:system-ui,-apple-system,sans-serif;}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px;}
@media (min-width:1400px){.container{max-width:1320px;}}
@media (max-width:575.98px){.container{padding-left:18px;padding-right:18px;}}

/* ---------- 按钮 ---------- */
.btn-main,.btn-outline-brand,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-main{background:var(--brand);color:#fff;}
.btn-main:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,90,31,.24);}
.btn-main:active{background:var(--brand-active);transform:translateY(0);box-shadow:none;}
.btn-outline-brand{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-outline-brand:hover{background:rgba(255,90,31,.06);color:var(--brand-hover);transform:translateY(-1px);}
.btn-outline-brand:active{background:rgba(255,90,31,.12);transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--dark-text);border-color:rgba(255,255,255,.7);}
.btn-ghost:hover{background:rgba(255,255,255,.10);color:#fff;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.link-underline{position:relative;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.link-underline::after{content:"";position:absolute;left:0;right:18px;bottom:-3px;height:1px;background:currentColor;opacity:0;transition:opacity var(--ease);}
.link-underline:hover::after{opacity:1;}
.link-underline i{font-size:11px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--border);
  transition:box-shadow var(--ease),background var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(18,21,26,.06);}
.nav-inner{display:flex;align-items:center;height:72px;transition:height var(--ease);}
.site-header.is-scrolled .nav-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:13px;font-weight:700;letter-spacing:.5px;font-family:system-ui,sans-serif;
}
.brand-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:.2px;}
.nav-desktop{display:flex;align-items:center;gap:30px;margin:0 auto;}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--muted);padding:6px 0;transition:color var(--ease);}
.nav-link:hover{color:var(--text);}
.nav-link.active{color:var(--text);}
.nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--brand);}
.nav-link.active::before{content:"";position:absolute;top:-7px;left:50%;transform:translateX(-50%);width:6px;height:6px;border-radius:50%;background:var(--brand);}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.link-cta{position:relative;font-size:15px;font-weight:600;color:var(--brand);margin-right:6px;}
.link-cta::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;background:currentColor;opacity:0;transition:opacity var(--ease);}
.link-cta:hover::after{opacity:1;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-btn);border:1px solid transparent;background:transparent;
  color:var(--muted);display:grid;place-items:center;cursor:pointer;transition:background var(--ease),color var(--ease);
}
.icon-btn:hover{background:var(--gray-block);color:var(--text);}
.drawer-btn{display:none;}
@media (max-width:991.98px){
  .nav-desktop{display:none;}
  .drawer-btn{display:grid;}
  .nav-actions{margin-left:auto;}
  .nav-inner{height:64px;}
  .site-header.is-scrolled .nav-inner{height:58px;}
}
/* 抽屉 */
.drawer{width:330px;border:0;background:#fff;}
.drawer .offcanvas-header{padding:18px 22px;border-bottom:1px solid var(--border);}
.drawer .offcanvas-body{padding:10px 22px 26px;display:flex;flex-direction:column;}
.drawer-link{display:flex;align-items:center;min-height:46px;font-size:16px;font-weight:500;color:var(--text);border-bottom:1px solid var(--border);}
.drawer-link:hover{color:var(--brand);}
.drawer-link.active{color:var(--brand);}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--border);padding:16px 0;}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--muted);line-height:1.5;}
.crumb a:hover{color:var(--brand);}
.crumb .divider{color:#C7CBD1;font-weight:300;}
.crumb .current{color:var(--text);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
@media (max-width:575.98px){.crumb .current{max-width:190px;}}

/* ---------- 文章头部 ---------- */
.article-head{background:#fff;padding:44px 0 0;}
.article-head .inner{max-width:900px;margin:0 auto;}
.article-title{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.2px;margin-bottom:20px;}
.meta-bar{display:flex;align-items:center;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--muted);}
.meta-bar .pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(255,90,31,.08);color:var(--brand);font-size:13px;font-weight:600;
}
.meta-bar .bar{width:1px;height:12px;background:var(--border);}
.head-rule{margin-top:30px;border-top:1px solid var(--border);padding-bottom:32px;}
@media (max-width:991.98px){.article-title{font-size:32px;}}
@media (max-width:575.98px){.article-head{padding-top:30px;}.article-title{font-size:28px;}}

/* ---------- 正文 ---------- */
.article-main{padding:40px 0 88px;}
.article-shell{max-width:800px;margin:0 auto;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:40px;}
.article-body{font-size:16px;line-height:1.9;color:var(--text);}
.article-body p{margin-bottom:20px;}
.article-body h2{
  font-size:24px;line-height:1.4;font-weight:700;color:var(--text);
  margin:32px 0;padding-left:14px;border-left:3px solid var(--brand);
}
.article-body h3{font-size:20px;line-height:1.45;font-weight:600;margin:28px 0 14px;}
.article-body ul{margin:0 0 20px;}
.article-body ul li{position:relative;padding-left:18px;margin-bottom:10px;}
.article-body ul li::before{content:"";position:absolute;left:0;top:12px;width:4px;height:4px;background:var(--brand);border-radius:1px;}
.article-body ol{list-style:decimal;padding-left:22px;margin:0 0 20px;}
.article-body ol li{margin-bottom:10px;padding-left:4px;}
.article-body ol li::marker{color:var(--brand);font-weight:600;}
.article-body blockquote{
  background:var(--gray-block);border-left:3px solid var(--brand);border-radius:0 var(--r-img) var(--r-img) 0;
  padding:20px;margin:0 0 24px;color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:24px 0 10px;}
.article-body figure{margin:0 0 24px;}
.article-body figcaption,.article-body .caption{font-size:13px;color:var(--muted);text-align:center;line-height:1.6;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(255,90,31,.35);}
.article-body a:hover{color:var(--brand-hover);border-bottom-color:var(--brand-hover);}
.article-body strong{font-weight:600;}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 24px;font-size:15px;border:1px solid var(--border);border-radius:var(--r-img);overflow:hidden;}
.article-body table th{background:var(--gray-block);font-weight:600;text-align:left;}
.article-body table th,.article-body table td{padding:12px 14px;border:1px solid var(--border);}
.article-body table tbody tr:hover{background:#FAFAF8;}
.article-body hr{border:0;border-top:1px solid var(--border);margin:32px 0;}
@media (max-width:575.98px){
  .article-shell{padding:22px 18px;}
  .article-body{font-size:15px;}
  .article-body h2{font-size:21px;margin:26px 0;}
  .article-body h3{font-size:18px;}
}

/* 标签组 */
.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:28px;border-top:1px solid var(--border);}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,90,31,.08);border:1px solid rgba(255,90,31,.16);
  color:var(--brand);font-size:13px;font-weight:500;transition:background var(--ease),border-color var(--ease);
}
.tag:hover{background:rgba(255,90,31,.15);border-color:rgba(255,90,31,.32);}
.back-row{margin-top:30px;display:flex;flex-wrap:wrap;gap:12px;}

/* 空态 */
.empty-state{padding:52px 20px;text-align:center;background:var(--gray-block);border-radius:var(--r-card);}
.empty-state i{font-size:30px;color:#B9BFC7;margin-bottom:14px;display:block;}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:18px;}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--page);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.sec-title{font-size:30px;line-height:1.3;font-weight:700;color:var(--text);}
.sec-sub{font-size:14px;color:var(--muted);margin-top:8px;}
@media (max-width:991.98px){.section{padding:64px 0;}.sec-title{font-size:25px;}}
@media (max-width:575.98px){.section{padding:44px 0;}.sec-title{font-size:23px;}.sec-head{margin-bottom:22px;}}

/* ---------- 资讯卡片 ---------- */
.news-card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.news-card .thumb{aspect-ratio:4/3;overflow:hidden;background:var(--gray-block);}
.news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease;}
.news-card:hover .thumb img{transform:scale(1.03);}
.news-card .body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto;}
.badge-cat{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--gray-block);color:var(--muted);font-size:13px;font-weight:500;margin-bottom:12px;
}
.news-card h3{font-size:17px;line-height:1.5;font-weight:600;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card h3 a:hover{color:var(--brand);}
.news-card .excerpt{font-size:14px;line-height:1.7;color:var(--muted);margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);}

/* ---------- 保障条 ---------- */
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.guard-item{background:var(--gray-block);border-radius:var(--r-card);padding:22px 20px;}
.guard-item i{font-size:20px;color:var(--brand);display:block;margin-bottom:12px;}
.guard-item h3{font-size:14px;font-weight:600;margin-bottom:6px;color:var(--text);}
.guard-item p{font-size:12px;line-height:1.7;color:var(--muted);}
@media (max-width:991.98px){.guard-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:575.98px){.guard-grid{gap:14px;}.guard-item{padding:18px 16px;}}

/* ---------- CTA 横幅 ---------- */
.cta-band{background:var(--ink);padding:72px 0;position:relative;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(25deg,rgba(255,90,31,.18),rgba(200,241,53,.10));
  pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;inset:0;opacity:.06;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.6) 0 1px,transparent 1px 9px);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;}
.cta-band h2{font-size:30px;line-height:1.3;font-weight:700;color:var(--dark-text);}
.cta-band p{font-size:15px;color:var(--dark-muted);margin-top:10px;max-width:640px;}
.cta-actions{display:flex;gap:12px;flex-shrink:0;}
@media (max-width:991.98px){
  .cta-band{padding:52px 0;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;}
  .cta-band h2{font-size:24px;}
  .cta-actions{width:100%;flex-wrap:wrap;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{flex:1 1 auto;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--dark-text);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:0;}
.f-col{padding:0 28px;}
.f-col:first-child{padding-left:0;}
.f-col:last-child{padding-right:0;}
.f-col + .f-col{border-left:1px solid var(--dark-line);}
.f-logo{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.f-logo .brand-text{color:var(--dark-text);font-size:17px;font-weight:700;}
.f-about{font-size:14px;line-height:1.85;color:var(--dark-muted);max-width:340px;}
.f-title{font-size:15px;font-weight:600;color:var(--dark-text);margin-bottom:16px;}
.f-list li{margin-bottom:11px;}
.f-list a{font-size:14px;color:var(--dark-muted);}
.f-list a:hover{color:var(--brand);}
.f-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--dark-muted);margin-bottom:12px;line-height:1.6;}
.f-contact i{color:var(--brand);font-size:13px;margin-top:5px;}
.f-form{display:flex;gap:10px;margin-top:16px;}
.f-form input{
  flex:1 1 auto;min-width:0;height:44px;padding:0 14px;border-radius:var(--r-btn);
  background:var(--ink-2);border:1px solid var(--dark-line);color:var(--dark-text);font-size:14px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.f-form input::placeholder{color:#7A828C;}
.f-form input:focus{outline:none;border-color:var(--brand);box-shadow:var(--brand-ring);}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--dark-line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--dark-muted);}
.back-top-link{font-size:13px;color:var(--dark-muted);}
.back-top-link:hover{color:var(--brand);}
@media (max-width:991.98px){
  .site-footer{padding-top:52px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .f-col{padding:0 0 28px;}
  .f-col + .f-col{border-left:0;}
  .f-col:nth-child(even){padding-left:22px;}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;}
  .f-col:nth-child(even){padding-left:0;}
}

/* ---------- 返回顶部 ---------- */
.back-top{
  position:fixed;right:24px;bottom:28px;width:40px;height:40px;border-radius:50%;
  background:#fff;border:1px solid var(--brand);color:var(--brand);
  display:grid;place-items:center;cursor:pointer;z-index:1040;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--ease),visibility var(--ease),transform var(--ease),background var(--ease);
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{background:var(--brand);color:#fff;}

/* roulang page: category1 */
:root{
  --brand:#FF5A1F;
  --brand-hover:#E84A12;
  --brand-active:#CC3F0B;
  --brand-ring:0 0 0 3px rgba(255,90,31,.28);
  --accent:#C8F135;
  --ink:#12151A;
  --ink-2:#1B2027;
  --on-dark:#F5F6F7;
  --on-dark-muted:#9AA3AD;
  --dark-line:rgba(255,255,255,.10);
  --bg:#F7F8F7;
  --card:#FFFFFF;
  --soft:#F1F2F0;
  --border:#E4E6E9;
  --text:#1B1F24;
  --muted:#5C6470;
  --ok:#1F9D55;
  --warn:#D98F00;
  --err:#D64545;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,21,26,.04), 0 8px 24px rgba(18,21,26,.06);
  --sh-2:0 16px 36px rgba(18,21,26,.12);
  --sec-pad:88px;
  --nav-h:72px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--brand);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text);}
h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.4px;}
h2{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.2px;}
h3{font-size:20px;line-height:1.45;font-weight:600;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num{font-family:system-ui,-apple-system,sans-serif;font-variant-numeric:tabular-nums;font-weight:600;}
.container{max-width:1240px;padding-left:24px;padding-right:24px;margin:0 auto;}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--border);
  transition:box-shadow .22s ease,height .22s ease;
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:var(--nav-h);transition:height .22s ease;
}
.site-header.scrolled .nav-inner{height:60px;}
.site-header.scrolled{box-shadow:0 6px 18px rgba(18,21,26,.06);}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--ink);letter-spacing:.2px;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;letter-spacing:.5px;
}
.brand-text{white-space:nowrap;}
.nav-desktop{display:flex;align-items:center;gap:34px;}
.nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--muted);
  padding:6px 0;
}
.nav-link:hover{color:var(--text);}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link.active{color:var(--text);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.nav-link.active::before{
  content:"";position:absolute;right:-10px;top:12px;
  width:6px;height:6px;border-radius:50%;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:14px;}
.link-cta{
  font-size:15px;font-weight:600;color:var(--brand);
  align-items:center;
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.link-cta:hover{color:var(--brand-hover);border-bottom-color:var(--brand-hover);}
.icon-btn{
  width:40px;height:40px;border-radius:10px;
  background:transparent;border:1px solid var(--border);
  color:var(--text);display:inline-flex;align-items:center;justify-content:center;
  transition:all .22s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);}
.icon-btn:focus-visible{outline:none;box-shadow:var(--brand-ring);}
.drawer-btn{display:inline-flex;}
@media (min-width:992px){.drawer-btn{display:none;}}
@media (max-width:991.98px){
  .nav-desktop{display:none;}
  h1{font-size:28px;}
  h2{font-size:23px;}
}
.offcanvas{border:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:20px 22px;border-bottom:1px solid var(--border);}
.drawer-list{padding:8px 22px 22px;}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:44px;padding:14px 0;font-size:16px;font-weight:500;color:var(--text);
  border-bottom:1px solid var(--border);
}
.drawer-list a.active{color:var(--brand);font-weight:600;}
.drawer-foot{padding:0 22px 28px;}

/* ---------- buttons ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  background:var(--brand);color:#fff;
  border:1px solid var(--brand);border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:all .22s ease;
}
.btn-main:hover{background:var(--brand-hover);border-color:var(--brand-hover);color:#fff;transform:translateY(-1px);}
.btn-main:active{background:var(--brand-active);border-color:var(--brand-active);transform:translateY(0);}
.btn-main:focus-visible{outline:none;box-shadow:var(--brand-ring);}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  background:#fff;color:var(--brand);
  border:1px solid var(--brand);border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:all .22s ease;
}
.btn-line:hover{background:rgba(255,90,31,.06);color:var(--brand-hover);transform:translateY(-1px);}
.btn-line:active{transform:translateY(0);color:var(--brand-active);}
.btn-line:focus-visible{outline:none;box-shadow:var(--brand-ring);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  background:transparent;color:var(--on-dark);
  border:1px solid rgba(255,255,255,.7);border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:all .22s ease;
}
.btn-ghost:hover{background:rgba(255,255,255,.10);color:#fff;transform:translateY(-1px);}
.btn-ghost:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,255,255,.28);}
.text-link{
  font-size:14px;font-weight:600;color:var(--muted);
  border-bottom:1px solid transparent;padding-bottom:1px;
}
.text-link:hover{color:var(--brand);border-bottom-color:var(--brand);}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  color:#fff;
  padding:64px 0 60px;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,21,26,.72) 0%,rgba(18,21,26,.62) 55%,rgba(18,21,26,.86) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.06) 0 1px,transparent 1px 14px);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.crumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px;
}
.crumb a{color:rgba(255,255,255,.72);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{opacity:.5;}
.crumb .cur{color:#fff;}
.page-hero h1{color:#fff;max-width:760px;}
.page-hero .hero-sub{
  margin-top:16px;font-size:17px;line-height:1.8;
  color:rgba(255,255,255,.82);max-width:660px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tags span{
  display:inline-flex;align-items:center;gap:6px;
  height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.20);
  font-size:13px;color:#fff;
}
.hero-tags i{color:var(--accent);font-size:12px;}

/* ---------- sections ---------- */
.section{padding:var(--sec-pad) 0;}
.section-soft{background:var(--soft);}
.section-white{background:#fff;}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:28px;flex-wrap:wrap;
}
.sec-head p{margin-top:8px;font-size:15px;color:var(--muted);max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.6px;color:var(--brand);
  text-transform:uppercase;margin-bottom:10px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);display:inline-block;}

/* ---------- filter bar ---------- */
.filter-bar{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:20px;
  margin-top:-38px;position:relative;z-index:5;
}
.filter-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.filter-row + .filter-row{margin-top:14px;padding-top:14px;border-top:1px solid var(--border);}
.filter-label{font-size:13px;color:var(--muted);min-width:64px;font-weight:500;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:34px;padding:0 16px;border-radius:var(--r-pill);
  background:var(--soft);border:1px solid transparent;
  font-size:14px;color:var(--muted);cursor:pointer;
  transition:all .22s ease;
}
.chip:hover{color:var(--text);border-color:var(--border);}
.chip.active{
  background:#fff;border-color:var(--brand);color:var(--brand);font-weight:600;
}
.chip:focus-visible{outline:none;box-shadow:var(--brand-ring);}
.filter-note{margin-left:auto;font-size:13px;color:var(--muted);}

/* ---------- product grid ---------- */
.product-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.p-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.p-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.p-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--soft);}
.p-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.p-card:hover .p-media img{transform:scale(1.03);}
.p-flag{
  position:absolute;left:12px;top:12px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--accent);color:var(--ink);
  font-size:12px;font-weight:600;display:inline-flex;align-items:center;
}
.p-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--soft);color:var(--muted);font-size:13px;
  align-self:flex-start;
}
.p-title{
  font-size:17px;line-height:1.5;font-weight:600;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  min-height:51px;
}
.p-title:hover{color:var(--brand);}
.p-spec{font-size:13px;color:var(--muted);}
.p-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.p-price{font-size:19px;color:var(--brand);font-family:system-ui,-apple-system,sans-serif;font-variant-numeric:tabular-nums;font-weight:600;}
.p-price small{font-size:12px;color:var(--muted);font-weight:400;margin-left:4px;}
.btn-cart{
  display:inline-flex;align-items:center;gap:6px;
  height:38px;padding:0 14px;border-radius:var(--r-btn);
  background:var(--ink);color:#fff;border:1px solid var(--ink);
  font-size:13px;font-weight:600;cursor:pointer;transition:all .22s ease;
  white-space:nowrap;
}
.btn-cart:hover{background:var(--brand);border-color:var(--brand);color:#fff;}
.btn-cart:focus-visible{outline:none;box-shadow:var(--brand-ring);}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 20px;color:var(--muted);
  background:#fff;border:1px dashed var(--border);border-radius:var(--r-card);
}
.empty-state i{font-size:26px;color:var(--border);display:block;margin-bottom:12px;}

/* ---------- pagination ---------- */
.pager{margin-top:36px;display:flex;justify-content:center;}
.pagination{gap:8px;margin:0;flex-wrap:wrap;}
.page-link{
  min-width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--border);border-radius:var(--r-btn);
  color:var(--muted);font-size:15px;font-weight:600;background:#fff;
  transition:all .22s ease;
}
.page-link:hover{border-color:var(--brand);color:var(--brand);background:#fff;}
.page-item.active .page-link{background:var(--brand);border-color:var(--brand);color:#fff;}
.page-item.disabled .page-link{color:#B9BFC7;border-color:var(--border);background:#fff;}

/* ---------- guide block ---------- */
.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.guide-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.guide-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.guide-card img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.guide-body{padding:20px;}
.guide-body h3{margin-bottom:10px;}
.guide-body p{font-size:15px;color:var(--muted);}
.guide-list{margin-top:14px;}
.guide-list li{
  position:relative;padding-left:18px;font-size:14px;color:var(--muted);
  margin-bottom:8px;
}
.guide-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:4px;height:4px;border-radius:1px;background:var(--brand);
}

/* ---------- guarantee ---------- */
.guarantee-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.g-item{
  background:var(--soft);border-radius:var(--r-card);padding:20px;
  display:flex;gap:14px;align-items:flex-start;
}
.g-item i{font-size:18px;color:var(--brand);margin-top:3px;}
.g-item h3{font-size:14px;font-weight:600;margin-bottom:4px;}
.g-item p{font-size:12px;color:var(--muted);line-height:1.6;}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{
  background:#fff;border:1px solid var(--border) !important;border-radius:var(--r-card) !important;
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-1);
}
.accordion-button{
  font-size:17px;font-weight:600;color:var(--text);
  background:#fff;padding:20px 22px;box-shadow:none !important;
  border-left:3px solid transparent;
}
.accordion-button:not(.collapsed){
  color:var(--text);background:#fff;border-left-color:var(--brand);
}
.accordion-button::after{
  width:16px;height:16px;background-size:16px;
  filter:grayscale(1) opacity(.55);
}
.accordion-body{
  padding:0 22px 22px 22px;font-size:15px;line-height:1.8;color:var(--muted);
}

/* ---------- cta ---------- */
.cta-band{
  position:relative;background:var(--ink);color:var(--on-dark);
  border-radius:var(--r-card);padding:44px;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(25deg,rgba(255,90,31,.18),rgba(200,241,53,.10));
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;margin-bottom:10px;}
.cta-inner p{color:var(--on-dark-muted);font-size:15px;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--on-dark);margin-top:0;padding:64px 0 28px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:0;
}
.f-col{padding:0 28px;}
.f-col:first-child{padding-left:0;}
.f-col:last-child{padding-right:0;}
.f-col + .f-col{border-left:1px solid var(--dark-line);}
.f-logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:16px;}
.f-logo .brand-mark{background:var(--brand);}
.f-about{font-size:14px;line-height:1.8;color:var(--on-dark-muted);}
.f-title{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.f-list li{margin-bottom:10px;}
.f-list a{font-size:14px;color:var(--on-dark-muted);}
.f-list a:hover{color:var(--accent);}
.f-contact li{display:flex;gap:10px;font-size:14px;color:var(--on-dark-muted);margin-bottom:10px;line-height:1.7;}
.f-contact i{color:var(--brand);margin-top:4px;font-size:13px;}
.f-form{display:flex;gap:10px;margin-top:14px;}
.f-form input{
  flex:1;min-height:44px;padding:0 14px;border-radius:var(--r-btn);
  background:var(--ink-2);border:1px solid var(--dark-line);color:#fff;font-size:14px;
}
.f-form input::placeholder{color:#6B7480;}
.f-form input:focus{outline:none;border-color:var(--brand);box-shadow:var(--brand-ring);}
.f-form .btn-main{min-height:44px;padding:0 18px;font-size:14px;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--dark-line);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--on-dark-muted);}
.back-top-link{font-size:13px;color:var(--on-dark-muted);}
.back-top-link:hover{color:var(--accent);}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:40px;height:40px;border-radius:50%;
  background:#fff;border:1px solid var(--brand);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:all .22s ease;z-index:1040;cursor:pointer;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand);color:#fff;}
.to-top:focus-visible{outline:none;box-shadow:var(--brand-ring);}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .product-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
  .f-col:nth-child(4){border-left:none;padding-left:0;margin-top:32px;}
  .f-col:nth-child(3){border-left:1px solid var(--dark-line);}
}
@media (max-width:991.98px){
  :root{--sec-pad:64px;}
  .product-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .guide-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .guarantee-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 0;}
  .f-col:nth-child(odd){border-left:none;padding-left:0;}
  .f-col:nth-child(even){border-left:1px solid var(--dark-line);}
  .cta-band{padding:32px;}
  .filter-note{display:none;}
}
@media (max-width:767.98px){
  h1{font-size:26px;}
  h2{font-size:22px;}
  .section{padding:44px;}
  .section{padding:44px 0;}
  .page-hero{padding:44px 0 40px;}
  .product-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
  .p-body{padding:16px;}
  .p-title{font-size:15px;min-height:45px;}
  .p-foot{flex-direction:column;align-items:flex-start;gap:10px;}
  .btn-cart{width:100%;justify-content:center;}
  .p-card:hover{transform:none;box-shadow:var(--sh-1);border-color:var(--brand);}
  .p-card:hover .p-media img{transform:none;}
  .guide-grid{grid-template-columns:1fr;}
  .guarantee-grid{grid-template-columns:1fr 1fr;gap:14px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .f-col{padding:0;}
  .f-col + .f-col{border-left:none;border-top:1px solid var(--dark-line);padding-top:24px;margin-top:24px;}
  .f-form{flex-direction:column;}
  .f-form .btn-main{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .to-top{right:16px;bottom:16px;}
}
@media (max-width:575.98px){
  .container{padding-left:18px;padding-right:18px;}
  .product-grid{grid-template-columns:1fr;}
  .p-title{min-height:auto;}
  .guarantee-grid{grid-template-columns:1fr;}
}

/* roulang page: category2 */
:root{
  --brand:#FF5A1F;
  --brand-hover:#E84A12;
  --brand-active:#CC3F0B;
  --accent:#C8F135;
  --ink:#12151A;
  --ink-2:#1B2027;
  --page:#F7F8F7;
  --card:#FFFFFF;
  --soft:#F1F2F0;
  --border:#E4E6E9;
  --text:#1B1F24;
  --muted:#5C6470;
  --muted-dark:#9AA3AD;
  --line-dark:rgba(255,255,255,.10);
  --ok:#1F9D55;
  --warn:#D98F00;
  --err:#D64545;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,21,26,.04), 0 8px 24px rgba(18,21,26,.06);
  --sh-2:0 16px 36px rgba(18,21,26,.12);
  --ring:0 0 0 3px rgba(255,90,31,.28);
  --t:.22s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color var(--t),opacity var(--t)}
a:hover{color:var(--brand)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:var(--r-btn)}
.container{max-width:1240px !important;padding-left:24px;padding-right:24px;margin:0 auto}
@media (min-width:1400px){.container{max-width:1320px !important}}
.num{font-family:system-ui,-apple-system,"Segoe UI",sans-serif;font-variant-numeric:tabular-nums;font-weight:600}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--border);
  transition:height var(--t),box-shadow var(--t);
}
.site-header.scrolled{box-shadow:0 6px 20px rgba(18,21,26,.06)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.site-header.scrolled .nav-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:14px;letter-spacing:.5px;
  font-family:system-ui,sans-serif;
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.5px;color:var(--ink)}
.nav-desktop{display:flex;align-items:center;gap:34px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--muted);padding:6px 0}
.nav-link:hover{color:var(--text)}
.nav-link.active{color:var(--text);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--brand);border-radius:2px;
}
.nav-link.active::before{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:-16px;width:6px;height:6px;
  border-radius:50%;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:14px}
.link-cta{font-size:15px;font-weight:600;color:var(--brand);align-items:center}
.link-cta:hover{color:var(--brand-hover)}
.icon-btn{
  width:40px;height:40px;border:1px solid var(--border);background:#fff;border-radius:var(--r-btn);
  display:grid;place-items:center;color:var(--muted);cursor:pointer;transition:all var(--t);
}
.icon-btn i{font-size:15px}
.icon-btn:hover{color:var(--brand);border-color:var(--brand)}
.drawer-btn{display:none}
@media (max-width:991.98px){
  .nav-desktop{display:none}
  .drawer-btn{display:grid}
  .nav-inner{height:64px}
}
.offcanvas{border-right:1px solid var(--border)}
.offcanvas-header{padding:20px 22px;border-bottom:1px solid var(--border)}
.drawer-list{padding:8px 22px 0}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;height:52px;
  font-size:16px;font-weight:500;color:var(--text);border-bottom:1px solid var(--border);
}
.drawer-list a.active{color:var(--brand);font-weight:600}
.drawer-cta{padding:22px}
.btn-close{--bs-btn-close-focus-shadow:var(--ring)}

/* ---------- buttons ---------- */
.btn-main,.btn-line,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  cursor:pointer;border:1px solid transparent;transition:all var(--t);white-space:nowrap;
}
.btn-main{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-main:hover{background:var(--brand-hover);border-color:var(--brand-hover);color:#fff;transform:translateY(-1px)}
.btn-main:active{background:var(--brand-active);border-color:var(--brand-active);transform:translateY(0)}
.btn-line{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-line:hover{background:#FFF3EE;color:var(--brand-hover);border-color:var(--brand-hover);transform:translateY(-1px)}
.btn-line:active{background:#FFE8DE;transform:translateY(0)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;transform:translateY(-1px)}
.btn-block{width:100%}
.text-link{font-size:14px;font-weight:600;color:var(--brand);border-bottom:1px solid transparent}
.text-link:hover{color:var(--brand-hover);border-bottom-color:var(--brand-hover)}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;min-height:300px;display:flex;align-items:flex-end;
  background-image:linear-gradient(180deg,rgba(18,21,26,.72) 0%,rgba(18,21,26,.55) 45%,rgba(18,21,26,.82) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;color:#F5F6F7;padding:56px 0 44px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:repeating-linear-gradient(45deg,#fff 0 1px,transparent 1px 9px);
}
.page-hero .container{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted-dark);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:var(--muted-dark)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{width:1px;height:12px;background:rgba(255,255,255,.28);display:inline-block;transform:rotate(18deg)}
.crumb .cur{color:#F5F6F7}
.page-hero h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:.5px}
.page-hero-sub{margin-top:14px;font-size:16px;line-height:1.75;color:#DDE1E5;max-width:720px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag-pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:14px;background:rgba(255,255,255,.12);color:#F5F6F7;border:1px solid rgba(255,255,255,.18);
}
.tag-pill.accent{background:var(--accent);color:var(--ink);border-color:var(--accent);font-weight:600}

/* ---------- sections ---------- */
.sec{padding:88px 0}
.sec-soft{background:var(--soft)}
.sec-white{background:#fff}
@media (max-width:991.98px){.sec{padding:64px 0}}
@media (max-width:575.98px){.sec{padding:44px 0}}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.sec-title{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:.3px}
.sec-title .bar{display:inline-block;width:3px;height:22px;background:var(--brand);border-radius:2px;margin-right:12px;vertical-align:-3px}
.sec-desc{margin-top:12px;color:var(--muted);font-size:15px;max-width:760px}
@media (max-width:575.98px){.sec-title{font-size:23px}}

/* ---------- course cards ---------- */
.course-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
@media (max-width:991.98px){.course-grid{grid-template-columns:1fr;gap:20px}}
.course-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:all var(--t);display:flex;flex-direction:column;
}
.course-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.course-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--soft)}
.course-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.course-card:hover .course-media img{transform:scale(1.03)}
.course-media .flag{
  position:absolute;left:16px;top:16px;height:26px;display:inline-flex;align-items:center;
  padding:0 12px;border-radius:var(--r-pill);background:var(--accent);color:var(--ink);font-size:14px;font-weight:600;
}
.course-body{padding:20px;display:flex;flex-direction:column;gap:14px;flex:1}
.course-body h3{font-size:20px;font-weight:600;line-height:1.45}
.course-points{display:flex;flex-direction:column;gap:10px}
.course-points li{position:relative;padding-left:18px;font-size:15px;color:var(--muted);line-height:1.7}
.course-points li::before{
  content:"";position:absolute;left:0;top:11px;width:4px;height:4px;background:var(--brand);border-radius:1px;
}
.course-meta{
  display:flex;flex-wrap:wrap;gap:8px 20px;padding-top:14px;border-top:1px solid var(--border);
  font-size:13px;color:var(--muted);
}
.course-meta b{color:var(--text);font-weight:600}
.course-foot{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:auto}
.course-price{font-size:15px;color:var(--brand);font-weight:600}

/* ---------- flow timeline ---------- */
.flow{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;margin-top:12px;
}
.flow::before{
  content:"";position:absolute;left:6%;right:6%;top:22px;height:1px;background:var(--border);
}
.flow-item{position:relative;padding-top:60px;text-align:left}
.flow-dot{
  position:absolute;left:0;top:0;width:44px;height:44px;border-radius:50%;background:#fff;
  border:1px solid var(--border);display:grid;place-items:center;color:var(--brand);
  font-weight:600;font-family:system-ui,sans-serif;font-size:16px;z-index:2;
}
.flow-item h3{font-size:17px;font-weight:600;line-height:1.5}
.flow-item p{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.7}
@media (max-width:991.98px){
  .flow{grid-template-columns:repeat(2,1fr)}
  .flow::before{display:none}
}
@media (max-width:575.98px){
  .flow{grid-template-columns:1fr;gap:22px}
}

/* ---------- dark stats ---------- */
.sec-dark{
  background:var(--ink);color:#F5F6F7;position:relative;overflow:hidden;padding:88px 0;
}
.sec-dark::after{
  content:"";position:absolute;inset:0;opacity:.06;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,#fff 0 1px,transparent 1px 10px);
}
.sec-dark .container{position:relative;z-index:2}
.sec-dark .sec-title{color:#fff}
.sec-dark .sec-desc{color:var(--muted-dark)}
.coach-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:8px}
@media (max-width:991.98px){.coach-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575.98px){.coach-grid{grid-template-columns:1fr}}
.coach-card{
  background:var(--ink-2);border:1px solid var(--line-dark);border-radius:var(--r-card);
  padding:20px;transition:all var(--t);
}
.coach-card:hover{border-color:rgba(255,90,31,.5);transform:translateY(-2px)}
.coach-card .who{display:flex;align-items:center;gap:14px}
.coach-card .avatar{
  width:56px;height:56px;border-radius:var(--r-img);overflow:hidden;flex:none;background:#232A33;
}
.coach-card .avatar img{width:100%;height:100%;object-fit:cover}
.coach-card h3{font-size:17px;font-weight:600;color:#fff;line-height:1.5}
.coach-card .role{font-size:13px;color:var(--muted-dark)}
.coach-card p{font-size:14px;color:var(--muted-dark);line-height:1.75;margin-top:14px}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px;border-top:1px solid var(--line-dark);padding-top:32px}
@media (max-width:767.98px){.stat-row{grid-template-columns:repeat(2,1fr);gap:24px}}
.stat-item .v{font-size:30px;font-weight:700;color:var(--accent);font-family:system-ui,sans-serif;font-variant-numeric:tabular-nums}
.stat-item .u{font-size:13px;color:var(--muted-dark);margin-top:6px}

/* ---------- faq + form ---------- */
.faq-layout{display:grid;grid-template-columns:1.6fr 1fr;gap:32px;align-items:start}
@media (max-width:991.98px){.faq-layout{grid-template-columns:1fr}}
.faq-acc .accordion-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  margin-bottom:14px;overflow:hidden;
}
.faq-acc .accordion-button{
  background:#fff;color:var(--text);font-size:17px;font-weight:600;line-height:1.5;
  padding:18px 22px;box-shadow:none;border-radius:0;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--brand);box-shadow:none;background:#fff;border-left:3px solid var(--brand);
}
.faq-acc .accordion-button:focus{box-shadow:var(--ring);z-index:3}
.faq-acc .accordion-button::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%235C6470'%3E%3Cpath d='M8 11.5 2.5 6h11z'/%3E%3C/svg%3E");
  background-size:14px;width:14px;height:14px;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23FF5A1F'%3E%3Cpath d='M8 11.5 2.5 6h11z'/%3E%3C/svg%3E");
}
.faq-acc .accordion-body{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--muted)}

.form-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);position:sticky;top:96px;
}
.form-card h3{font-size:20px;font-weight:600;line-height:1.45}
.form-card .hint{font-size:13px;color:var(--muted);margin-top:8px;line-height:1.7}
.form-field{margin-top:16px}
.form-field label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:6px}
.form-field input,.form-field textarea,.form-field select{
  width:100%;border:1px solid var(--border);border-radius:var(--r-btn);
  padding:11px 14px;font-size:15px;color:var(--text);background:#fff;transition:all var(--t);
}
.form-field textarea{min-height:104px;resize:vertical}
.form-field input::placeholder,.form-field textarea::placeholder{color:#9AA3AD}
.form-field input:focus,.form-field textarea:focus,.form-field select:focus{
  border-color:var(--brand);box-shadow:var(--ring);outline:none;
}
.form-field .err-msg{display:none;font-size:13px;color:var(--err);margin-top:6px}
.form-field.has-err input,.form-field.has-err textarea{border-color:var(--err)}
.form-field.has-err .err-msg{display:block}
.form-ok{display:none;font-size:13px;color:var(--ok);margin-top:12px}
.form-ok.show{display:block}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  background:linear-gradient(25deg,#FF5A1F 0%,#FF5A1F 55%,#C8F135 140%);
  color:#fff;padding:44px;display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band::after{
  content:"";position:absolute;inset:0;opacity:.14;
  background-image:repeating-linear-gradient(45deg,#12151A 0 1px,transparent 1px 12px);pointer-events:none;
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:30px;font-weight:700;line-height:1.3}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.92);max-width:620px}
.cta-actions{display:flex;gap:14px;flex:none}
@media (max-width:991.98px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .cta-band h2{font-size:23px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%}
}

/* ---------- guarantee ---------- */
.g-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media (max-width:991.98px){.g-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575.98px){.g-grid{gap:14px}}
.g-item{
  background:var(--soft);border-radius:var(--r-card);padding:20px;transition:all var(--t);
}
.g-item:hover{background:#fff;box-shadow:var(--sh-1)}
.g-item i{font-size:20px;color:var(--brand)}
.g-item h3{font-size:14px;font-weight:600;margin-top:12px}
.g-item p{font-size:12px;color:var(--muted);margin-top:6px;line-height:1.7}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#F5F6F7;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:32px}
.f-col{padding-right:28px}
.f-col + .f-col{border-left:1px solid var(--line-dark);padding-left:28px}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px}
  .f-col{padding-right:0}
  .f-col + .f-col{border-left:none;padding-left:0}
}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr}}
.f-logo{display:inline-flex;align-items:center;gap:10px}
.f-logo .brand-text{color:#fff}
.f-about{margin-top:16px;font-size:14px;line-height:1.8;color:var(--muted-dark)}
.f-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.f-list li{margin-bottom:10px}
.f-list a{font-size:14px;color:var(--muted-dark)}
.f-list a:hover{color:var(--accent)}
.f-contact li{display:flex;gap:10px;font-size:14px;color:var(--muted-dark);margin-bottom:12px;line-height:1.7}
.f-contact i{color:var(--brand);margin-top:4px}
.f-form{display:flex;gap:10px;margin-top:16px}
.f-form input{
  flex:1;min-width:0;background:var(--ink-2);border:1px solid var(--line-dark);border-radius:var(--r-btn);
  padding:11px 14px;color:#F5F6F7;font-size:14px;
}
.f-form input::placeholder{color:#8A939D}
.f-form input:focus{border-color:var(--brand);box-shadow:var(--ring);outline:none}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line-dark);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--muted-dark)}
.back-top-link{font-size:13px;color:var(--muted-dark)}
.back-top-link:hover{color:var(--accent)}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;width:40px;height:40px;border-radius:50%;
  background:#fff;border:1px solid var(--brand);color:var(--brand);display:grid;place-items:center;
  cursor:pointer;opacity:0;visibility:hidden;transform:translateY(8px);transition:all var(--t);z-index:1040;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand);color:#fff}
@media (max-width:575.98px){.to-top{right:16px;bottom:18px}}

/* roulang page: category3 */
:root{
  --brand:#FF5A1F;
  --brand-hover:#E84A12;
  --brand-active:#CC3F0B;
  --brand-ring:0 0 0 3px rgba(255,90,31,.28);
  --accent:#C8F135;
  --ink:#12151A;
  --ink-2:#1B2027;
  --ink-text:#F5F6F7;
  --ink-muted:#9AA3AD;
  --ink-line:rgba(255,255,255,.10);
  --bg:#F7F8F7;
  --surface:#FFFFFF;
  --surface-2:#F1F2F0;
  --line:#E4E6E9;
  --text:#1B1F24;
  --muted:#5C6470;
  --ok:#1F9D55;
  --warn:#D98F00;
  --err:#D64545;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,21,26,.04), 0 8px 24px rgba(18,21,26,.06);
  --sh-2:0 16px 36px rgba(18,21,26,.12);
  --t:.22s ease;
  --font-cn:-apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{ display:block; max-width:100%; height:auto; }
a{ color:inherit; text-decoration:none; transition:color var(--t); }
a:hover{ color:var(--brand); }
h1,h2,h3,h4{ margin:0; line-height:1.3; color:var(--text); }
p{ margin:0 0 16px; }
ul{ margin:0; padding:0; list-style:none; }
button,input,select,textarea{ font:inherit; color:inherit; }
:focus-visible{ outline:none; box-shadow:var(--brand-ring); border-radius:6px; }

.container{ max-width:1240px; padding-left:24px; padding-right:24px; margin:0 auto; }
@media (min-width:1400px){ .container{ max-width:1320px; } }
@media (max-width:575.98px){ .container{ padding-left:18px; padding-right:18px; } }

.section{ padding:88px 0; }
.section-sm{ padding:64px 0; }
.bg-soft{ background:var(--surface-2); }
.bg-page{ background:var(--bg); }
.bg-ink{ background:var(--ink); color:var(--ink-text); }
.bg-white{ background:var(--surface); }
@media (max-width:991.98px){ .section{ padding:64px 0; } .section-sm{ padding:48px 0; } }
@media (max-width:575.98px){ .section{ padding:44px 0; } .section-sm{ padding:36px 0; } }

/* ===== header ===== */
.site-header{
  position:sticky; top:0; z-index:1030;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t), height var(--t);
}
.site-header.scrolled{ box-shadow:0 4px 18px rgba(18,21,26,.06); }
.nav-inner{
  display:flex; align-items:center; justify-content:space-between;
  height:72px; gap:24px;
  transition:height var(--t);
}
.site-header.scrolled .nav-inner{ height:60px; }
.brand{ display:inline-flex; align-items:center; gap:10px; color:var(--text); }
.brand:hover{ color:var(--text); }
.brand-mark{
  display:inline-flex; align-items:center; justify-content:center;
  width:34px; height:34px; border-radius:9px;
  background:var(--brand); color:#fff;
  font-size:14px; font-weight:700; letter-spacing:.5px;
  font-variant-numeric:tabular-nums;
}
.brand-text{ font-size:17px; font-weight:700; letter-spacing:.3px; }
.nav-desktop{ display:flex; align-items:center; gap:34px; }
.nav-link{
  position:relative; font-size:15px; font-weight:500; color:var(--muted);
  padding:6px 0;
}
.nav-link:hover{ color:var(--text); }
.nav-link.active{ color:var(--text); }
.nav-link.active::after{
  content:""; position:absolute; left:0; right:0; bottom:-4px;
  height:2px; border-radius:2px; background:var(--brand);
}
.nav-link.active::before{
  content:""; position:absolute; left:50%; transform:translateX(-50%);
  bottom:-11px; width:6px; height:6px; border-radius:50%; background:var(--brand);
}
.nav-actions{ display:flex; align-items:center; gap:12px; }
.link-cta{
  font-size:15px; font-weight:600; color:var(--text);
  border-bottom:1px solid transparent; padding-bottom:2px;
}
.link-cta:hover{ color:var(--brand); border-bottom-color:var(--brand); }
.icon-btn{
  display:inline-flex; align-items:center; justify-content:center;
  width:40px; height:40px; border-radius:var(--r-btn);
  background:transparent; border:1px solid var(--line); color:var(--muted);
  cursor:pointer; transition:all var(--t);
}
.icon-btn:hover{ color:var(--brand); border-color:var(--brand); background:rgba(255,90,31,.05); }
.drawer-btn{ display:none; }
@media (max-width:991.98px){
  .nav-desktop{ display:none; }
  .drawer-btn{ display:inline-flex; }
}
.drawer-panel{ width:min(360px, 88vw); border-left:1px solid var(--line); }
.drawer-panel .offcanvas-header{ border-bottom:1px solid var(--line); padding:18px 22px; }
.drawer-panel .offcanvas-body{ padding:10px 22px 26px; display:flex; flex-direction:column; }
.drawer-link{
  font-size:16px; font-weight:500; color:var(--text);
  padding:16px 0; border-bottom:1px solid var(--line);
}
.drawer-link.active{ color:var(--brand); }
.drawer-cta{ margin-top:24px; }

/* ===== buttons ===== */
.btn-main{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:44px; padding:0 22px; border-radius:var(--r-btn);
  background:var(--brand); color:#fff; border:1px solid var(--brand);
  font-size:15px; font-weight:600; cursor:pointer;
  transition:all var(--t);
}
.btn-main:hover{ background:var(--brand-hover); border-color:var(--brand-hover); color:#fff; transform:translateY(-1px); }
.btn-main:active{ background:var(--brand-active); border-color:var(--brand-active); transform:translateY(0); }
.btn-ghost{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:44px; padding:0 22px; border-radius:var(--r-btn);
  background:#fff; color:var(--brand); border:1px solid var(--brand);
  font-size:15px; font-weight:600; cursor:pointer; transition:all var(--t);
}
.btn-ghost:hover{ background:rgba(255,90,31,.06); color:var(--brand-hover); transform:translateY(-1px); }
.btn-ghost:active{ transform:translateY(0); background:rgba(255,90,31,.12); }
.btn-dark-ghost{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:44px; padding:0 22px; border-radius:var(--r-btn);
  background:transparent; color:var(--ink-text); border:1px solid rgba(255,255,255,.7);
  font-size:15px; font-weight:600; cursor:pointer; transition:all var(--t);
}
.btn-dark-ghost:hover{ background:rgba(255,255,255,.12); color:#fff; transform:translateY(-1px); }
.btn-block{ width:100%; }

/* ===== page hero ===== */
.page-hero{
  position:relative; min-height:300px; display:flex; align-items:center;
  background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  color:#fff; overflow:hidden;
}
.page-hero::before{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(18,21,26,.80) 0%, rgba(18,21,26,.58) 60%, rgba(18,21,26,.72) 100%);
}
.page-hero::after{
  content:""; position:absolute; inset:0; opacity:.06;
  background-image:repeating-linear-gradient(45deg, #fff 0 1px, transparent 1px 14px);
}
.page-hero .container{ position:relative; z-index:2; padding-top:56px; padding-bottom:56px; }
.breadcrumb-line{
  display:flex; align-items:center; flex-wrap:wrap; gap:10px;
  font-size:13px; color:rgba(255,255,255,.72); margin-bottom:18px;
}
.breadcrumb-line a{ color:rgba(255,255,255,.72); }
.breadcrumb-line a:hover{ color:#fff; }
.breadcrumb-line span.sep{ width:1px; height:12px; background:rgba(255,255,255,.35); display:inline-block; transform:skewX(-12deg); }
.page-hero h1{
  font-size:40px; font-weight:700; line-height:1.25; color:#fff;
  max-width:820px; letter-spacing:.4px;
}
.page-hero .hero-sub{
  margin-top:16px; font-size:16px; line-height:1.75;
  color:rgba(255,255,255,.86); max-width:720px;
}
.hero-tags{ display:flex; flex-wrap:wrap; gap:10px; margin-top:24px; }
.hero-tag{
  display:inline-flex; align-items:center; gap:6px;
  height:28px; padding:0 14px; border-radius:var(--r-pill);
  font-size:13px; color:#fff; background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.20);
}
@media (max-width:991.98px){
  .page-hero{ min-height:260px; }
  .page-hero h1{ font-size:30px; }
}
@media (max-width:575.98px){
  .page-hero{ min-height:0; }
  .page-hero h1{ font-size:28px; }
  .page-hero .hero-sub{ font-size:15px; }
  .page-hero .container{ padding-top:42px; padding-bottom:42px; }
}

/* ===== section titles ===== */
.sec-head{
  display:flex; align-items:flex-end; justify-content:space-between;
  gap:20px; margin-bottom:28px;
}
.sec-head h2{ font-size:30px; font-weight:700; letter-spacing:.3px; }
.sec-head p{ margin:10px 0 0; font-size:15px; color:var(--muted); max-width:640px; }
.sec-head .more-link{
  font-size:15px; font-weight:600; color:var(--brand);
  border-bottom:1px solid transparent; white-space:nowrap;
}
.sec-head .more-link:hover{ border-bottom-color:var(--brand); }
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-size:13px; font-weight:600; color:var(--brand); letter-spacing:1.2px;
  text-transform:uppercase; margin-bottom:12px;
}
.eyebrow::before{ content:""; width:18px; height:2px; background:var(--brand); border-radius:2px; }
@media (max-width:991.98px){ .sec-head h2{ font-size:23px; } }
@media (max-width:575.98px){
  .sec-head{ flex-direction:column; align-items:flex-start; }
}

/* ===== badges / tags ===== */
.tag{
  display:inline-flex; align-items:center; height:26px; padding:0 12px;
  border-radius:var(--r-pill); font-size:13px; font-weight:500;
  background:var(--surface-2); color:var(--muted);
}
.tag-accent{ background:var(--accent); color:var(--ink); font-weight:600; }
.tag-brand{ background:rgba(255,90,31,.10); color:var(--brand); font-weight:600; }

/* ===== cards ===== */
.card-base{
  background:var(--surface); border:1px solid var(--line);
  border-radius:var(--r-card); box-shadow:var(--sh-1);
  transition:transform var(--t), box-shadow var(--t), border-color var(--t);
  overflow:hidden; height:100%;
}
.card-base:hover{ transform:translateY(-2px); box-shadow:var(--sh-2); }
.need-card{ padding:0 0 20px; }
.need-card .thumb{ position:relative; }
.need-card .thumb img{ width:100%; aspect-ratio:4/3; object-fit:cover; border-radius:0; }
.need-card .thumb::after{
  content:""; position:absolute; left:16px; bottom:0; width:26px; height:2px; background:var(--brand);
}
.need-card .body{ padding:18px 20px 0; }
.need-card h3{ font-size:17px; font-weight:600; margin-bottom:8px; }
.need-card p{ font-size:14px; color:var(--muted); margin:0 0 14px; line-height:1.7; }
.need-card .meta{ font-size:13px; color:var(--muted); display:flex; align-items:center; gap:8px; }
@media (max-width:767.98px){
  .need-card:hover{ transform:none; box-shadow:var(--sh-1); border-color:var(--brand); }
}

/* ===== assurance strip ===== */
.assure-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.assure-item{
  background:var(--surface-2); border-radius:var(--r-card);
  padding:22px 20px; border:1px solid transparent;
  transition:all var(--t);
}
.assure-item:hover{ background:#fff; border-color:var(--line); box-shadow:var(--sh-1); }
.assure-item i{ font-size:20px; color:var(--brand); margin-bottom:12px; display:block; }
.assure-item h3{ font-size:14px; font-weight:600; margin-bottom:6px; }
.assure-item p{ font-size:12px; color:var(--muted); margin:0; line-height:1.6; }
@media (max-width:991.98px){ .assure-grid{ grid-template-columns:repeat(2,1fr); gap:14px; } }

/* ===== faq accordion ===== */
.faq-accordion .accordion-item{
  background:var(--surface); border:1px solid var(--line);
  border-radius:var(--r-card); margin-bottom:14px; overflow:hidden;
  box-shadow:var(--sh-1);
}
.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)){
  border-left:3px solid var(--brand);
}
.faq-accordion .accordion-button{
  padding:20px 22px; font-size:17px; font-weight:600; color:var(--text);
  background:var(--surface); box-shadow:none; border-radius:0;
}
.faq-accordion .accordion-button:not(.collapsed){ color:var(--text); background:var(--surface); }
.faq-accordion .accordion-button:focus{ box-shadow:var(--brand-ring); z-index:3; }
.faq-accordion .accordion-button::after{
  width:14px; height:14px; background-size:14px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23FF5A1F'%3E%3Cpath d='M8 11.2 2.8 6h10.4z'/%3E%3C/svg%3E");
}
.faq-accordion .accordion-body{
  padding:0 22px 22px; font-size:15px; line-height:1.8; color:var(--muted);
}
.faq-accordion .accordion-body strong{ color:var(--text); font-weight:600; }

/* ===== form ===== */
.form-card{
  background:var(--surface); border:1px solid var(--line);
  border-radius:var(--r-card); box-shadow:var(--sh-1); padding:26px 24px;
}
.form-card h3{ font-size:20px; font-weight:600; margin-bottom:8px; }
.form-card .form-note{ font-size:13px; color:var(--muted); margin-bottom:20px; line-height:1.7; }
.form-label{ font-size:14px; font-weight:500; color:var(--text); margin-bottom:6px; }
.form-control,.form-select{
  border:1px solid var(--line); border-radius:var(--r-btn);
  padding:11px 14px; font-size:15px; background:#fff; color:var(--text);
  transition:border-color var(--t), box-shadow var(--t);
}
.form-control::placeholder{ color:#9AA3AD; }
.form-control:focus,.form-select:focus{
  border-color:var(--brand); box-shadow:var(--brand-ring); outline:none;
}
.form-control.is-invalid,.form-select.is-invalid{ border-color:var(--err); }
.field-msg{ font-size:13px; margin-top:6px; display:none; }
.field-msg.err{ display:block; color:var(--err); }
.field-msg.ok{ display:block; color:var(--ok); }
.form-status{ font-size:13px; margin-top:14px; display:none; }
.form-status.ok{ display:block; color:var(--ok); }
.form-status.err{ display:block; color:var(--err); }
.contact-mini{ margin-top:18px; padding-top:18px; border-top:1px solid var(--line); }
.contact-mini li{ display:flex; gap:10px; font-size:14px; color:var(--muted); margin-bottom:10px; }
.contact-mini i{ color:var(--brand); margin-top:5px; }

/* ===== steps timeline ===== */
.steps{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; position:relative; }
.steps::before{
  content:""; position:absolute; top:22px; left:8%; right:8%; height:1px; background:var(--line);
}
.step{ position:relative; padding-top:0; }
.step .num{
  position:relative; z-index:2;
  display:inline-flex; align-items:center; justify-content:center;
  width:44px; height:44px; border-radius:50%;
  background:var(--brand); color:#fff; font-size:16px; font-weight:600;
  font-variant-numeric:tabular-nums;
  box-shadow:0 6px 16px rgba(255,90,31,.28);
}
.step h3{ font-size:17px; font-weight:600; margin:16px 0 8px; }
.step p{ font-size:14px; color:var(--muted); margin:0; line-height:1.75; }
@media (max-width:991.98px){
  .steps{ grid-template-columns:repeat(2,1fr); gap:28px 20px; }
  .steps::before{ display:none; }
}
@media (max-width:575.98px){ .steps{ grid-template-columns:1fr; } }

/* ===== table ===== */
.table-wrap{
  background:var(--surface); border:1px solid var(--line);
  border-radius:var(--r-card); box-shadow:var(--sh-1); overflow:hidden;
}
.table-scroll{ overflow-x:auto; }
table.spec-table{ width:100%; border-collapse:collapse; min-width:720px; }
table.spec-table th,table.spec-table td{
  padding:16px 20px; font-size:15px; text-align:left;
  border-bottom:1px solid var(--line); vertical-align:top;
}
table.spec-table thead th{
  background:var(--surface-2); font-size:14px; font-weight:600; color:var(--text);
  white-space:nowrap;
}
table.spec-table tbody tr{ transition:background var(--t); }
table.spec-table tbody tr:hover{ background:#FAFBFA; }
table.spec-table tbody tr:last-child td{ border-bottom:none; }
table.spec-table td.strong{ font-weight:600; color:var(--text); white-space:nowrap; }
table.spec-table td.num{ font-variant-numeric:tabular-nums; font-weight:600; color:var(--brand); white-space:nowrap; }
.table-hint{ font-size:13px; color:var(--muted); padding:14px 20px; background:var(--surface); border-top:1px solid var(--line); }

/* ===== cta band ===== */
.cta-band{
  position:relative; overflow:hidden;
  background:var(--ink); color:var(--ink-text);
  border-radius:var(--r-card);
  padding:52px 48px;
}
.cta-band::before{
  content:""; position:absolute; inset:0;
  background:linear-gradient(25deg, rgba(255,90,31,.18) 0%, rgba(200,241,53,.10) 70%);
}
.cta-band::after{
  content:""; position:absolute; inset:0; opacity:.06;
  background-image:repeating-linear-gradient(45deg, #fff 0 1px, transparent 1px 16px);
}
.cta-inner{
  position:relative; z-index:2;
  display:flex; align-items:center; justify-content:space-between; gap:28px; flex-wrap:wrap;
}
.cta-band h2{ font-size:30px; font-weight:700; color:#fff; margin-bottom:10px; }
.cta-band p{ margin:0; font-size:15px; color:var(--ink-muted); max-width:560px; }
.cta-actions{ display:flex; gap:14px; flex-wrap:wrap; }
@media (max-width:767.98px){
  .cta-band{ padding:36px 24px; }
  .cta-band h2{ font-size:24px; }
  .cta-actions{ width:100%; }
  .cta-actions .btn-main,.cta-actions .btn-dark-ghost{ width:100%; }
}

/* ===== footer ===== */
.site-footer{ background:var(--ink); color:var(--ink-text); padding:72px 0 0; }
.footer-grid{
  display:grid; grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:0;
}
.f-col{ padding:0 32px; border-left:1px solid var(--ink-line); }
.f-col:first-child{ padding-left:0; border-left:none; }
.f-col:last-child{ padding-right:0; }
.f-logo{ display:inline-flex; align-items:center; gap:10px; margin-bottom:18px; }
.f-logo .brand-mark{ background:var(--brand); }
.f-logo .brand-text{ color:#fff; font-size:17px; font-weight:700; }
.f-about{ font-size:14px; line-height:1.8; color:var(--ink-muted); margin:0; }
.f-title{ font-size:15px; font-weight:600; color:#fff; margin-bottom:18px; }
.f-list li{ margin-bottom:12px; }
.f-list a{ font-size:14px; color:var(--ink-muted); }
.f-list a:hover{ color:var(--brand); }
.f-contact li{ display:flex; gap:10px; font-size:14px; color:var(--ink-muted); margin-bottom:12px; line-height:1.7; }
.f-contact i{ color:var(--brand); margin-top:5px; }
.f-form{ display:flex; gap:10px; margin-top:16px; }
.f-form input{
  flex:1; min-width:0; height:44px; padding:0 14px;
  background:var(--ink-2); border:1px solid var(--ink-line);
  border-radius:var(--r-btn); color:var(--ink-text); font-size:14px;
}
.f-form input::placeholder{ color:#7C848E; }
.f-form input:focus{ outline:none; border-color:var(--brand); box-shadow:var(--brand-ring); }
.f-form .btn-main{ height:44px; padding:0 18px; }
.footer-bottom{
  margin-top:56px; border-top:1px solid var(--ink-line);
  padding:22px 0 28px; display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap;
}
.footer-bottom p{ margin:0; font-size:13px; color:var(--ink-muted); }
.back-top-link{ font-size:13px; color:var(--ink-muted); }
.back-top-link:hover{ color:var(--brand); }
@media (max-width:991.98px){
  .footer-grid{ grid-template-columns:repeat(2,1fr); gap:36px 0; }
  .f-col{ padding:0 22px; }
  .f-col:nth-child(odd){ padding-left:0; border-left:none; }
  .f-col:nth-child(even){ padding-right:0; }
}
@media (max-width:575.98px){
  .site-footer{ padding-top:52px; }
  .footer-grid{ grid-template-columns:1fr; }
  .f-col{ padding:0 0 0 20px; border-left:1px solid var(--ink-line); }
  .f-col:first-child{ padding-left:0; border-left:none; }
  .f-form{ flex-direction:column; }
  .f-form .btn-main{ width:100%; }
}

/* ===== back to top ===== */
#toTop{
  position:fixed; right:24px; bottom:24px; z-index:1040;
  width:40px; height:40px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  background:#fff; color:var(--brand); border:1px solid var(--brand);
  box-shadow:var(--sh-1); cursor:pointer;
  opacity:0; visibility:hidden; transform:translateY(8px);
  transition:all var(--t);
}
#toTop.show{ opacity:1; visibility:visible; transform:translateY(0); }
#toTop:hover{ background:var(--brand); color:#fff; }