/* roulang page: index */
:root{
  --brand:#FF4D2D;
  --brand-hover:#E13A1A;
  --brand-active:#C42F14;
  --ink:#101A33;
  --ink-2:#1C2A4A;
  --accent:#17E0C8;
  --bg:#F6F5F2;
  --surface:#FFFFFF;
  --line:#E4E1DA;
  --muted:#66707F;
  --r-card:18px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(16,26,51,.06), 0 8px 24px rgba(16,26,51,.06);
  --sh-2:0 12px 32px rgba(16,26,51,.12);
  --sp-section:96px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;text-underline-offset:3px;transition:color .22s var(--ease);}
a:hover{color:var(--brand-hover);}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{max-width:1240px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%;}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;max-width:100%;}
}
.section{padding:var(--sp-section) 0;}
.section-sm{padding:calc(var(--sp-section) * .7) 0;}
@media (max-width:991.98px){:root{--sp-section:68px;}}
@media (max-width:767.98px){:root{--sp-section:48px;}}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--ink);
  color:rgba(255,255,255,.78);
  font-size:12.5px;
  letter-spacing:.2px;
}
.topbar .container{
  min-height:40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  padding-top:6px;
  padding-bottom:6px;
}
.topbar-left{display:flex;align-items:center;gap:8px;}
.topbar-left i{color:var(--accent);}
.topbar-right{display:flex;align-items:center;gap:18px;}
.topbar-right a{color:rgba(255,255,255,.78);font-size:12.5px;}
.topbar-right a:hover{color:var(--accent);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--surface);
  border-bottom:1px solid transparent;
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{
  box-shadow:var(--sh-1);
  border-bottom-color:var(--line);
}
.nav-shell{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:78px;
  padding:10px 0;
}
.brand{
  display:flex;
  flex-direction:column;
  line-height:1.15;
  text-decoration:none;
  flex-shrink:0;
}
.brand-main{
  font-size:19px;
  font-weight:800;
  color:var(--ink);
  letter-spacing:.2px;
}
.brand-sub{
  font-size:11.5px;
  color:var(--muted);
  letter-spacing:2px;
  margin-top:3px;
}
.brand:hover .brand-main{color:var(--brand);}
.nav-menu{
  display:flex;
  align-items:center;
  gap:10px;
  margin:0;
  flex-wrap:nowrap;
}
.nav-pill{
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 16px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:#FBFAF8;
  font-size:14px;
  color:var(--ink);
  white-space:nowrap;
  transition:all .22s var(--ease);
}
.nav-pill:hover{
  border-color:var(--brand);
  color:var(--brand);
  background:#FFF5F2;
}
.nav-pill.active{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  font-weight:600;
}
.nav-pill.active:hover{background:var(--brand-hover);color:#fff;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:var(--brand);
  color:#fff;
  border:1px solid var(--brand);
  border-radius:var(--r-btn);
  font-weight:600;
  height:52px;
  padding:0 28px;
  font-size:15.5px;
  transition:all .22s var(--ease);
  box-shadow:0 6px 18px rgba(255,77,45,.22);
}
.btn-brand:hover{
  background:var(--brand-hover);
  border-color:var(--brand-hover);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
}
.btn-brand:active{background:var(--brand-active);border-color:var(--brand-active);transform:translateY(0);}
.btn-brand.nav-size{height:44px;padding:0 22px;font-size:14.5px;box-shadow:none;}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:transparent;
  color:var(--ink);
  border:1.5px solid var(--ink);
  border-radius:var(--r-btn);
  font-weight:600;
  height:52px;
  padding:0 26px;
  font-size:15.5px;
  transition:all .22s var(--ease);
}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);background:var(--ink-2);border-color:var(--ink-2);}
.btn-ghost.nav-size{height:44px;padding:0 20px;font-size:14.5px;border-width:1.5px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  align-items:center;
  justify-content:center;
  font-size:17px;
}
@media (max-width:1100px){
  .nav-menu{display:none;}
  .nav-actions .btn-ghost.nav-size{display:none;}
  .nav-toggle{display:inline-flex;}
}
@media (max-width:575.98px){
  .nav-actions .btn-brand.nav-size{height:42px;padding:0 16px;font-size:13.5px;}
  .brand-main{font-size:16.5px;}
  .brand-sub{font-size:10.5px;letter-spacing:1.4px;}
}
/* offcanvas */
.offcanvas{background:var(--surface);width:320px;}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.offcanvas-title{font-size:16px;font-weight:700;}
.offcanvas-body{padding:20px;}
.offcanvas .nav-pill{width:100%;justify-content:flex-start;height:46px;margin-bottom:10px;font-size:15px;}
.offcanvas-foot{margin-top:24px;padding-top:20px;border-top:1px solid var(--line);}
.offcanvas-foot .btn-brand{width:100%;}
.btn-close:focus{box-shadow:none;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background:var(--ink);
  color:#fff;
  padding:74px 0 78px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.28) 1px, transparent 1px);
  background-size:22px 22px;
  opacity:.06;
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  right:-140px;
  top:-140px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(255,77,45,.34), transparent 70%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:1px;
  color:var(--accent);
  border:1px solid rgba(23,224,200,.34);
  border-radius:var(--r-btn);
  padding:5px 14px;
  margin-bottom:20px;
}
.hero-title{
  font-size:clamp(30px,5vw,52px);
  font-weight:800;
  line-height:1.18;
  color:#fff;
  margin-bottom:18px;
}
.hero-title .hl{color:var(--brand);}
.hero-sub{
  font-size:clamp(16px,2vw,19px);
  line-height:1.7;
  color:rgba(255,255,255,.78);
  max-width:560px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px;}
.hero .btn-ghost{color:#fff;border-color:rgba(255,255,255,.55);}
.hero .btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff;}
.hero-trust{
  display:flex;
  flex-wrap:wrap;
  gap:12px 26px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
}
.hero-trust li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:rgba(255,255,255,.72);
}
.hero-trust .status-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(23,224,200,.16);
  flex-shrink:0;
}
.hero-trust strong{color:#fff;font-weight:700;}
.hero-figure{
  margin:0;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid rgba(255,77,45,.42);
  box-shadow:0 24px 60px rgba(0,0,0,.35);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
@media (max-width:991.98px){
  .hero{padding:52px 0 58px;}
  .hero-figure{margin-top:8px;}
}
@media (max-width:767.98px){
  .hero{padding:44px 0 48px;}
  .hero-figure img{aspect-ratio:16/9;max-height:260px;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{flex:1 1 100%;}
}

/* ---------- 通用区块标题 ---------- */
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  margin-bottom:40px;
}
.sec-title{
  font-size:clamp(24px,3.4vw,36px);
  font-weight:700;
  line-height:1.25;
  margin-bottom:12px;
}
.sec-desc{
  font-size:15px;
  color:var(--muted);
  max-width:640px;
}
.sec-link{
  font-size:14.5px;
  font-weight:600;
  white-space:nowrap;
  border-bottom:2px solid rgba(255,77,45,.35);
  padding-bottom:2px;
}
.sec-link:hover{border-bottom-color:var(--brand-hover);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  letter-spacing:2px;
  color:var(--brand);
  font-weight:700;
  margin-bottom:14px;
}

/* ---------- 品牌主张：编号列表 ---------- */
.claim-wrap{background:var(--surface);}
.claim-grid{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:48px;
}
.claim-left h2{font-size:clamp(24px,3.4vw,36px);font-weight:700;line-height:1.25;margin-bottom:16px;}
.claim-left p{color:var(--muted);font-size:15.5px;max-width:380px;}
.claim-list{display:flex;flex-direction:column;}
.claim-item{
  display:flex;
  gap:22px;
  padding:24px 0;
  border-bottom:1px solid var(--line);
  transition:padding-left .22s var(--ease);
}
.claim-item:first-child{padding-top:6px;}
.claim-item:hover{padding-left:8px;}
.claim-num{
  font-size:26px;
  font-weight:800;
  color:var(--brand);
  line-height:1.1;
  min-width:44px;
  letter-spacing:1px;
}
.claim-icon{
  width:40px;height:40px;border-radius:12px;
  background:#FFF3EF;
  color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;flex-shrink:0;
}
.claim-body h3{font-size:16.5px;font-weight:600;margin-bottom:6px;}
.claim-body p{font-size:14.5px;color:var(--muted);}
@media (max-width:991.98px){
  .claim-grid{grid-template-columns:1fr;gap:28px;}
}

/* ---------- 故事/理念（深色） ---------- */
.story{
  background:var(--ink);
  color:#fff;
  position:relative;
  overflow:hidden;
}
.story::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;width:38%;
  background-image:linear-gradient(var(--ink),var(--ink)),repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 2px,transparent 2px 12px);
  background-blend-mode:overlay;
  opacity:.055;
  pointer-events:none;
}
.story .container{position:relative;z-index:2;}
.story-grid{
  display:grid;
  grid-template-columns:110px minmax(0,1fr) minmax(0,380px);
  gap:44px;
  align-items:start;
}
.story-years{display:flex;flex-direction:column;gap:26px;padding-top:6px;}
.story-years span{
  font-size:13px;
  letter-spacing:2px;
  color:rgba(255,255,255,.42);
  border-left:2px solid rgba(255,255,255,.16);
  padding-left:12px;
}
.story-years span.is-on{color:var(--accent);border-left-color:var(--accent);}
.story-copy h2{
  color:#fff;
  font-size:clamp(23px,3vw,32px);
  font-weight:700;
  line-height:1.3;
  margin-bottom:22px;
}
.story-copy p{
  color:rgba(255,255,255,.72);
  font-size:15.5px;
  margin-bottom:18px;
  max-width:560px;
}
.story-figure{
  margin:0;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
}
.story-figure img{aspect-ratio:3/4;object-fit:cover;width:100%;}
@media (max-width:991.98px){
  .story-grid{grid-template-columns:1fr;gap:26px;}
  .story-years{flex-direction:row;flex-wrap:wrap;gap:14px;}
  .story-figure img{aspect-ratio:16/9;max-height:260px;}
}

/* ---------- 精选内容卡（错位网格） ---------- */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.feature-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
  display:flex;
  flex-direction:column;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.feature-card.is-wide{grid-column:span 2;flex-direction:row;}
.feature-thumb{
  overflow:hidden;
  position:relative;
  flex-shrink:0;
}
.feature-thumb img{
  width:100%;
  height:200px;
  object-fit:cover;
  transition:transform .3s var(--ease);
}
.feature-card.is-wide .feature-thumb{width:48%;}
.feature-card.is-wide .feature-thumb img{height:100%;min-height:100%;}
.feature-card:hover .feature-thumb img{transform:scale(1.04);}
.feature-body{padding:22px;display:flex;flex-direction:column;flex:1;gap:12px;}
.chip{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-btn);
  font-size:12.5px;
  border:1px solid var(--line);
  background:#FBFAF8;
  color:var(--muted);
  align-self:flex-start;
  white-space:nowrap;
}
.chip-brand{
  background:rgba(255,77,45,.1);
  border-color:rgba(255,77,45,.24);
  color:var(--brand);
  font-weight:600;
}
.feature-body h3{
  font-size:17px;
  font-weight:600;
  line-height:1.45;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.feature-body h3 a{color:var(--ink);}
.feature-body h3 a:hover{color:var(--brand);}
.feature-body p{
  font-size:14px;
  color:var(--muted);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--muted);
  padding-top:12px;
  border-top:1px solid var(--line);
}
.card-meta i{color:var(--brand);font-size:12px;}
@media (max-width:991.98px){
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .feature-card.is-wide{grid-column:span 2;flex-direction:column;}
  .feature-card.is-wide .feature-thumb{width:100%;}
  .feature-card.is-wide .feature-thumb img{height:200px;min-height:0;}
}
@media (max-width:575.98px){
  .feature-grid{grid-template-columns:1fr;}
  .feature-card.is-wide{grid-column:span 1;}
  .feature-thumb img{height:220px;}
}

/* ---------- 最新信息（CMS） ---------- */
.latest{background:var(--surface);}
.filter-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:32px;
}
.filter-chip{
  height:36px;
  padding:0 18px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:#FBFAF8;
  color:var(--muted);
  font-size:13.5px;
  display:inline-flex;
  align-items:center;
  transition:all .22s var(--ease);
  cursor:pointer;
}
.filter-chip:hover{border-color:var(--brand);color:var(--brand);}
.filter-chip.is-on{background:var(--ink);border-color:var(--ink);color:#fff;}
.news-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  height:100%;
  display:flex;
  flex-direction:column;
  gap:12px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,77,45,.3);}
.news-top{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.news-time{font-size:13px;color:var(--muted);}
.news-title{font-size:17px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a{color:var(--ink);}
.news-title a:hover{color:var(--brand);}
.news-excerpt{
  font-size:14px;
  color:var(--muted);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-more{
  margin-top:auto;
  font-size:13.5px;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.news-more i{font-size:11px;transition:transform .22s var(--ease);}
.news-card:hover .news-more i{transform:translateX(4px);}
.empty-state{
  text-align:center;
  padding:56px 24px;
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  background:#FBFAF8;
}
.empty-state i{font-size:30px;color:var(--muted);margin-bottom:14px;display:block;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:18px;}
.btn-outline-sm{
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 24px;
  border-radius:var(--r-btn);
  border:1.5px solid var(--ink);
  color:var(--ink);
  font-size:14px;
  font-weight:600;
  transition:all .22s var(--ease);
}
.btn-outline-sm:hover{background:var(--ink);color:#fff;}

/* ---------- 信任背书 ---------- */
.proof{background:var(--bg);}
.proof-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-bottom:44px;}
.quote-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.quote-head{display:flex;align-items:center;gap:14px;margin-bottom:16px;}
.avatar{
  width:44px;height:44px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),#FF8A5B);
  color:#fff;font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.quote-name{font-size:15px;font-weight:600;}
.quote-role{font-size:12.5px;color:var(--muted);}
.stars{display:flex;gap:3px;margin-bottom:12px;}
.stars span{
  width:12px;height:12px;
  background:var(--brand);
  clip-path:polygon(50% 0%,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%);
}
.quote-card p{font-size:14.5px;color:var(--muted);}
.cap-wall{
  display:grid;
  grid-template-columns:repeat(6,minmax(0,1fr));
  gap:14px;
}
.cap-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:#FBFAF8;
  padding:18px 10px;
  text-align:center;
  font-size:13.5px;
  color:var(--muted);
  filter:grayscale(1);
  transition:all .22s var(--ease);
}
.cap-item i{display:block;font-size:18px;margin-bottom:8px;color:var(--ink);}
.cap-item:hover{filter:grayscale(0);border-color:var(--brand);color:var(--brand);background:#FFF6F3;transform:translateY(-3px);}
.cap-item:hover i{color:var(--brand);}
@media (max-width:991.98px){
  .proof-grid{grid-template-columns:1fr;}
  .cap-wall{grid-template-columns:repeat(3,minmax(0,1fr));}
}
@media (max-width:575.98px){
  .cap-wall{grid-template-columns:repeat(2,minmax(0,1fr));}
}

/* ---------- FAQ ---------- */
.faq{background:var(--surface);}
.accordion-item{
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  background:var(--surface);
}
.accordion-button{
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  background:var(--surface);
  padding:20px 22px;
  border:0;
  box-shadow:none;
  position:relative;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.accordion-button::before{
  content:"";
  position:absolute;
  left:0;top:14%;bottom:14%;
  width:4px;
  background:var(--brand);
  border-radius:0 4px 4px 0;
  opacity:0;
  transition:opacity .22s var(--ease);
}
.accordion-button:not(.collapsed){
  background:var(--bg);
  color:var(--brand);
  box-shadow:none;
}
.accordion-button:not(.collapsed)::before{opacity:1;}
.accordion-button:focus{box-shadow:none;border-color:var(--line);}
.accordion-button::after{
  background-image:none;
  content:"\f054";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:12px;
  width:auto;height:auto;
  color:var(--muted);
  transition:transform .22s var(--ease),color .22s var(--ease);
}
.accordion-button:not(.collapsed)::after{transform:rotate(90deg);color:var(--brand);}
.accordion-body{
  font-size:15px;
  color:var(--muted);
  padding:4px 22px 22px;
  background:var(--bg);
  line-height:1.8;
}

/* ---------- CTA / 订阅 ---------- */
.cta-band{
  background:var(--ink);
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-120px;bottom:-160px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(23,224,200,.18), transparent 70%);
}
.cta-band .container{position:relative;z-index:2;}
.cta-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,460px);
  gap:44px;
  align-items:center;
}
.cta-grid h2{color:#fff;font-size:clamp(23px,3vw,32px);font-weight:700;line-height:1.3;margin-bottom:14px;}
.cta-grid p{color:rgba(255,255,255,.72);font-size:15px;}
.sub-form{display:flex;gap:12px;}
.sub-form .form-control{
  height:52px;
  border-radius:var(--r-input);
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);
  color:#fff;
  padding:0 18px;
  font-size:15px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.sub-form .form-control::placeholder{color:rgba(255,255,255,.5);}
.sub-form .form-control:focus{
  background:rgba(255,255,255,.1);
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(255,77,45,.24);
  color:#fff;
}
.sub-form .btn-brand{flex-shrink:0;}
.sub-tip{margin-top:12px;font-size:13px;color:var(--accent);min-height:20px;}
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus{
  -webkit-text-fill-color:#fff;
  -webkit-box-shadow:0 0 0 1000px rgba(28,42,74,1) inset;
  transition:background-color 5000s ease-in-out 0s;
}
@media (max-width:991.98px){
  .cta-grid{grid-template-columns:1fr;gap:26px;}
}
@media (max-width:767.98px){
  .sub-form{flex-direction:column;}
  .sub-form .btn-brand{width:100%;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.72);
  padding:72px 0 0;
  position:relative;
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.3) 1px, transparent 1px);
  background-size:24px 24px;
  opacity:.05;
  pointer-events:none;
}
.site-footer .container{position:relative;z-index:2;}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.6fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.2fr);
  gap:36px;
  padding-bottom:44px;
}
.footer-brand-main{font-size:19px;font-weight:800;color:#fff;line-height:1.2;}
.footer-brand-sub{font-size:11.5px;letter-spacing:2px;color:rgba(255,255,255,.45);margin-top:5px;}
.footer-brand p{font-size:14px;margin:16px 0 18px;max-width:300px;line-height:1.7;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:40px;height:40px;border-radius:12px;
  border:1px solid rgba(255,255,255,.16);
  display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.72);
  transition:all .22s var(--ease);
}
.footer-social a:hover{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateY(-3px);}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col ul li a:hover{color:var(--brand);}
.footer-col .note{font-size:13.5px;line-height:1.8;margin-bottom:12px;}
.footer-col .note strong{color:#fff;font-weight:600;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--brand);}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:52px;}
}

/* 通用栅格间距补充 */
.row.g-4 > *{padding-left:12px;padding-right:12px;}

/* roulang page: article */
:root{
  --brand:#FF4D2D;
  --brand-hover:#E13A1A;
  --brand-active:#C42F14;
  --ink:#101A33;
  --ink-2:#1C2A4A;
  --accent:#17E0C8;
  --bg:#F6F5F2;
  --surface:#FFFFFF;
  --line:#E4E1DA;
  --muted:#66707F;
  --r-card:18px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(16,26,51,.06),0 8px 24px rgba(16,26,51,.06);
  --sh-2:0 12px 32px rgba(16,26,51,.12);
  --sp-section:96px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-hover);}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.28;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
::selection{background:rgba(255,77,45,.18);}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
@media (max-width:767px){.container{padding:0 16px;}}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1.5px solid transparent;
  text-align:center;cursor:pointer;white-space:nowrap;
  transition:transform .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.btn:focus,.btn:focus-visible{box-shadow:0 0 0 2px #fff,0 0 0 4px var(--brand);outline:none;}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff;}
.btn-primary:hover,.btn-primary:focus{background:var(--brand-hover);border-color:var(--brand-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{background:var(--brand-active);border-color:var(--brand-active);color:#fff;transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--ink);border-color:var(--ink);color:#fff;}
.btn-ghost:active{background:var(--ink-2);border-color:var(--ink-2);color:#fff;}
.btn-sm-nav{height:44px;padding:0 22px;font-size:14.5px;}

/* ============ chips / tags ============ */
.chip{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:var(--r-btn);font-size:12.5px;font-weight:600;
  border:1px solid var(--line);background:#fff;color:var(--muted);
}
.chip-brand{background:rgba(255,77,45,.10);border-color:rgba(255,77,45,.20);color:var(--brand);}
.tag{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;
  font-size:13.5px;color:var(--muted);transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:#fff;}

/* ============ topbar ============ */
.topbar{background:var(--ink);color:rgba(255,255,255,.72);font-size:12.5px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:40px;}
.topbar-note{display:inline-flex;align-items:center;}
.topbar-note i{color:var(--accent);margin-right:8px;}
.topbar-links{display:flex;gap:20px;}
.topbar-links a{color:rgba(255,255,255,.78);}
.topbar-links a:hover{color:#fff;}

/* ============ header / nav ============ */
.site-header{position:sticky;top:0;z-index:1040;background:#fff;border-bottom:1px solid transparent;transition:box-shadow .24s var(--ease),border-color .24s var(--ease);}
.site-header.is-stuck{box-shadow:var(--sh-1);border-bottom-color:var(--line);}
.nav-wrap{display:flex;align-items:center;gap:22px;height:78px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{width:42px;height:42px;border-radius:13px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:18px;box-shadow:0 8px 18px rgba(255,77,45,.28);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:17px;font-weight:800;letter-spacing:0;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.14em;margin-top:2px;}
.nav-menu{display:flex;align-items:center;gap:8px;margin-left:auto;}
.nav-pill{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;
  border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;
  color:var(--ink);font-size:14px;font-weight:500;white-space:nowrap;
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.nav-pill:hover{border-color:var(--brand);color:var(--brand);background:#fff;}
.nav-pill.active{background:var(--brand);border-color:var(--brand);color:#fff;}
.nav-pill.active:hover{color:#fff;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:12px;flex-direction:column;gap:4px;align-items:center;justify-content:center;
  margin-left:auto;padding:0;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .22s var(--ease),opacity .22s var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-menu{display:none;}

@media (max-width:991px){
  .nav-wrap{height:70px;gap:12px;}
  .nav-menu,.nav-actions{display:none;}
  .nav-toggle{display:flex;}
  .mobile-menu{display:block;max-height:0;overflow:hidden;transition:max-height .3s var(--ease);border-top:1px solid transparent;background:#fff;}
  .mobile-menu.is-open{max-height:460px;border-top-color:var(--line);}
  .mobile-menu .nav-pill{display:flex;align-items:center;justify-content:center;height:48px;margin:12px 20px 0;padding:0;}
  .mobile-menu .btn{width:calc(100% - 40px);margin:16px 20px 22px;height:48px;}
}

/* ============ article hero ============ */
.article-hero{padding:34px 0 6px;}
.article-hero .container{max-width:868px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#c3c7cf;}
.crumb strong{color:var(--ink);font-weight:600;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{
  font-size:clamp(26px,4vw,40px);
  font-weight:800;line-height:1.22;letter-spacing:0;
  margin:20px 0 18px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#c9ccd4;}

/* ============ article body ============ */
.article-section{padding:28px 0 76px;}
.article-shell{
  max-width:868px;margin:0 auto;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:48px 56px 44px;box-shadow:var(--sh-1);
}
.article-body{font-size:16px;line-height:1.9;color:#26314a;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  font-size:23px;font-weight:700;line-height:1.4;
  margin:2.2em 0 .8em;padding-left:12px;border-left:4px solid var(--brand);
}
.article-body h3{font-size:19px;font-weight:600;margin:1.8em 0 .6em;}
.article-body h4{font-size:17px;font-weight:600;margin:1.5em 0 .5em;}
.article-body blockquote{
  margin:1.6em 0;padding:20px 22px;background:#FBFAF8;
  border-left:4px solid var(--brand);border-radius:0 12px 12px 0;
  font-size:15.5px;line-height:1.85;color:var(--muted);
}
.article-body blockquote p{margin:0 0 .6em;}
.article-body blockquote p:last-child{margin:0;}
.article-body ul{margin:0 0 1.2em;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:8px;}
.article-body ul li::before{content:"";position:absolute;left:0;top:.68em;width:7px;height:7px;border-radius:2px;background:var(--brand);}
.article-body ol{margin:0 0 1.2em;padding-left:22px;list-style:decimal;}
.article-body ol li{margin-bottom:8px;padding-left:4px;}
.article-body ol li::marker{color:var(--brand);font-weight:700;}
.article-body img{border-radius:var(--r-img);margin:1.6em auto;max-width:100%;height:auto;}
.article-body figure{margin:1.6em 0;}
.article-body figure img{margin-bottom:10px;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;line-height:1.7;}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;}
.article-body thead th{background:#FBFAF8;border-bottom:1px solid var(--line);border-top:1px solid var(--line);text-align:left;padding:12px 14px;font-weight:600;color:var(--ink);}
.article-body tbody td{padding:12px 14px;border-bottom:1px solid var(--line);color:#33405a;}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.article-body a:hover{color:var(--brand-active);text-decoration-thickness:2px;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0;}
.article-body strong{font-weight:700;color:var(--ink);}

@media (max-width:991px){
  .article-shell{padding:36px 32px;}
  .article-body{font-size:15.5px;}
  .article-body h2{font-size:21px;}
}
@media (max-width:767px){
  .article-shell{padding:26px 20px;border-radius:14px;}
  .article-hero{padding:24px 0 4px;}
  .article-section{padding:18px 0 56px;}
  .crumb strong{max-width:220px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
}

/* ============ empty state ============ */
.empty-block{
  text-align:center;padding:56px 20px;border:1px dashed var(--line);
  border-radius:14px;background:#FBFAF8;
}
.empty-icon{width:60px;height:60px;border-radius:50%;background:rgba(255,77,45,.10);color:var(--brand);display:grid;place-items:center;margin:0 auto 18px;font-size:22px;}
.empty-title{font-size:18px;font-weight:700;margin-bottom:8px;}
.empty-text{font-size:14px;color:var(--muted);margin-bottom:22px;}

/* ============ article foot ============ */
.article-foot{
  margin-top:40px;padding-top:28px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;
}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.tag-label{font-size:13px;color:var(--muted);margin-right:2px;}
.foot-actions{display:flex;flex-wrap:wrap;gap:12px;}
@media (max-width:575px){
  .article-foot{flex-direction:column;align-items:flex-start;}
  .foot-actions{width:100%;}
  .foot-actions .btn{flex:1;padding:0 18px;font-size:14px;}
}

/* ============ related ============ */
.related{padding:8px 0 84px;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;}
.section-title{font-size:clamp(23px,3vw,32px);font-weight:700;}
.section-sub{font-size:14.5px;color:var(--muted);margin-top:10px;}
.link-more{font-size:14px;font-weight:600;color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:34px;}
@media (max-width:991px){.related-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:575px){.related-grid{grid-template-columns:1fr;gap:18px;}}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);color:var(--ink);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.post-card:hover,.post-card:focus{color:var(--ink);transform:translateY(-4px);box-shadow:var(--sh-2);}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#eceef2;}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;align-items:flex-start;}
.post-title{font-size:17px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-desc{font-size:14px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-time{font-size:13px;color:var(--muted);margin-top:auto;}

/* ============ cta band ============ */
.cta-band{
  background:var(--ink);color:rgba(255,255,255,.75);
  padding:64px 0;position:relative;overflow:hidden;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:22px 22px;
}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;position:relative;z-index:2;}
.cta-text{max-width:520px;}
.cta-text h2{color:#fff;font-size:clamp(22px,2.8vw,30px);line-height:1.35;}
.cta-text p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.72);}
.cta-form{display:flex;flex-wrap:wrap;gap:12px;align-items:center;max-width:520px;width:100%;}
.cta-form .form-control{flex:1 1 220px;min-width:0;}
.form-hint{flex:1 1 100%;font-size:12.5px;color:rgba(255,255,255,.55);margin:0;}
.form-control{
  height:52px;border-radius:var(--r-input);border:1px solid var(--line);
  padding:0 16px;background:#fff;color:var(--ink);font-size:15px;width:100%;
  box-shadow:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-control::placeholder{color:#9aa3b0;}
.form-control:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,77,45,.12);background:#fff;color:var(--ink);outline:none;}
.form-control:-webkit-autofill{-webkit-box-shadow:0 0 0 1000px #fff inset;-webkit-text-fill-color:var(--ink);}

@media (max-width:991px){
  .cta-band{padding:52px 0;}
  .cta-text{max-width:100%;}
  .cta-form{max-width:100%;}
}
@media (max-width:575px){
  .cta-form{flex-direction:column;align-items:stretch;}
  .cta-form .btn{width:100%;}
}

/* ============ footer ============ */
.site-footer{
  background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 26px;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:24px 24px;
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.4fr;gap:40px;}
.footer-brand-main{font-size:19px;font-weight:800;color:#fff;}
.footer-brand-sub{font-size:11.5px;letter-spacing:.18em;color:rgba(255,255,255,.5);margin-top:4px;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin:14px 0 18px;max-width:330px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.16);
  display:grid;place-items:center;color:rgba(255,255,255,.8);
  transition:background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.footer-social a:hover{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateY(-2px);}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{color:rgba(255,255,255,.68);font-size:14px;}
.footer-col ul a:hover{color:var(--brand);}
.footer-col .note{font-size:13px;line-height:1.85;color:rgba(255,255,255,.55);margin-bottom:10px;}
.footer-col .note strong{color:rgba(255,255,255,.82);}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12px;color:rgba(255,255,255,.5);
}
@media (max-width:991px){
  .site-footer{padding:56px 0 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:6px;}
}

/* ============ bootstrap overrides ============ */
.accordion-button{border-radius:14px;font-weight:600;}
.accordion-button:not(.collapsed){background:#FBFAF8;color:var(--ink);box-shadow:none;border-left:4px solid var(--brand);}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(255,77,45,.12);border-color:var(--brand);}
.pagination .page-link{border-radius:var(--r-btn);border-color:var(--line);color:var(--ink);margin:0 4px;padding:8px 16px;}
.pagination .page-link:hover{border-color:var(--brand);color:var(--brand);background:#fff;}
.pagination .active .page-link{background:var(--brand);border-color:var(--brand);color:#fff;}
.card{border-radius:var(--r-card);border:1px solid var(--line);box-shadow:var(--sh-1);}
.badge{border-radius:var(--r-btn);font-weight:600;background:rgba(255,77,45,.10);color:var(--brand);}
.breadcrumb{background:transparent;padding:0;margin:0;}
.list-group-item{border-color:var(--line);}
.dropdown-menu{border-radius:14px;border-color:var(--line);box-shadow:var(--sh-2);}

/* roulang page: category1 */
:root{
  --brand:#FF4D2D;
  --brand-hover:#E13A1A;
  --brand-active:#C42F14;
  --brand-soft:rgba(255,77,45,.10);
  --ink:#101A33;
  --ink-2:#1C2A4A;
  --accent:#17E0C8;
  --bg:#F6F5F2;
  --surface:#FFFFFF;
  --line:#E4E1DA;
  --muted:#66707F;
  --r-card:18px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(16,26,51,.06),0 8px 24px rgba(16,26,51,.06);
  --sh-2:0 12px 32px rgba(16,26,51,.12);
  --sp-section:96px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-hover);}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ---------- Bootstrap 覆盖 ---------- */
.btn{
  border-radius:var(--r-btn);
  font-weight:600;
  box-shadow:none;
  transition:all .22s var(--ease);
}
.btn-primary{
  --bs-btn-bg:var(--brand);
  --bs-btn-border-color:var(--brand);
  --bs-btn-hover-bg:var(--brand-hover);
  --bs-btn-hover-border-color:var(--brand-hover);
  --bs-btn-active-bg:var(--brand-active);
  --bs-btn-active-border-color:var(--brand-active);
  --bs-btn-focus-shadow-rgb:255,77,45;
  border-radius:var(--r-btn);
  color:#fff;
}
.btn-outline-primary{
  --bs-btn-color:var(--ink);
  --bs-btn-border-color:var(--line);
  --bs-btn-hover-bg:var(--ink);
  --bs-btn-hover-border-color:var(--ink);
  --bs-btn-hover-color:#fff;
  --bs-btn-active-bg:var(--ink-2);
  --bs-btn-active-border-color:var(--ink-2);
  border-radius:var(--r-btn);
}
.card{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  background:var(--surface);
}
.navbar{background:transparent;padding:0;}
.nav-link{
  color:var(--ink);
  font-size:14px;
  font-weight:500;
  border-radius:var(--r-btn);
  padding:8px 16px;
}
.nav-link:hover,.nav-link:focus{color:var(--brand);}
.badge{
  border-radius:var(--r-btn);
  background:var(--brand-soft);
  color:var(--brand);
  font-weight:600;
  font-size:12px;
  padding:5px 12px;
}
.pagination{gap:8px;}
.pagination .page-link{
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  color:var(--ink);
  padding:8px 15px;
  font-size:14px;
  box-shadow:none;
}
.pagination .page-link:hover{background:var(--brand-soft);color:var(--brand);border-color:var(--brand);}
.pagination .page-item.active .page-link{background:var(--brand);border-color:var(--brand);color:#fff;}
.breadcrumb{margin:0;background:transparent;padding:0;font-size:13px;}
.breadcrumb-item+.breadcrumb-item::before{content:"/";color:var(--muted);}
.dropdown-menu{
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:var(--sh-2);
  padding:8px;
}
.dropdown-item{border-radius:10px;font-size:14px;padding:9px 12px;}
.dropdown-item:hover{background:var(--brand-soft);color:var(--brand);}
.list-group-item{
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:10px;
  background:#fff;
  color:var(--ink);
}
.form-control,.form-select{
  height:52px;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  padding:0 16px;
  font-size:15px;
  color:var(--ink);
  background:#fff;
  box-shadow:none;
}
.form-control:focus,.form-select:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(255,77,45,.12);
  outline:none;
}
.form-control::placeholder{color:#9AA3AF;}
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus{
  -webkit-text-fill-color:var(--ink);
  -webkit-box-shadow:0 0 0 1000px #fff inset;
  transition:background-color 9999s ease-in-out 0s;
  border:1px solid var(--line);
}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--ink);
  color:rgba(255,255,255,.78);
  font-size:12.5px;
  height:40px;
  display:flex;
  align-items:center;
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;}
.topbar-text{display:inline-flex;align-items:center;gap:8px;color:rgba(255,255,255,.78);}
.topbar-text i{color:var(--accent);font-size:12px;}
.topbar-links{display:flex;align-items:center;gap:18px;}
.topbar-links a{color:rgba(255,255,255,.78);font-size:12.5px;}
.topbar-links a:hover{color:#fff;}
@media (max-width:575.98px){
  .topbar-text{font-size:12px;}
  .topbar-links{gap:12px;}
  .topbar-links a:first-child{display:none;}
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(246,245,242,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(228,225,218,0);
  transition:box-shadow .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease);
}
.site-header.scrolled{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:78px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:44px;height:44px;
  border-radius:14px;
  background:linear-gradient(135deg,var(--brand),#FF7A45);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;
  box-shadow:0 6px 16px rgba(255,77,45,.28);
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-main{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:0;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.16em;margin-top:2px;}
.nav-menu{display:flex;align-items:center;gap:10px;margin-left:12px;}
.nav-pill{
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 16px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
  transition:all .22s var(--ease);
}
.nav-pill:hover{border-color:var(--brand);color:var(--brand);}
.nav-pill.active{background:var(--brand);border-color:var(--brand);color:#fff;}
.nav-pill.active:hover{color:#fff;}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}

.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:52px;
  padding:0 28px;
  border-radius:var(--r-btn);
  border:1.5px solid var(--brand);
  background:var(--brand);
  color:#fff;
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
  cursor:pointer;
  transition:all .22s var(--ease);
}
.btn-main:hover{
  background:var(--brand-hover);
  border-color:var(--brand-hover);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
}
.btn-main:active{background:var(--brand-active);border-color:var(--brand-active);transform:translateY(0);}
.btn-main.sm{height:44px;padding:0 22px;font-size:14px;}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--r-btn);
  border:1.5px solid var(--ink);
  background:transparent;
  color:var(--ink);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  cursor:pointer;
  transition:all .22s var(--ease);
}
.btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink);}
.btn-ghost.on-dark{border-color:rgba(255,255,255,.42);color:#fff;}
.btn-ghost.on-dark:hover{background:#fff;border-color:#fff;color:var(--ink);}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  font-size:17px;
  cursor:pointer;
  transition:all .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- 移动端抽屉 ---------- */
.offcanvas.offcanvas-end{width:320px;border-left:1px solid var(--line);background:var(--bg);}
.offcanvas-header{
  padding:18px 20px;
  border-bottom:1px solid var(--line);
  align-items:center;
}
.offcanvas-title{font-size:15px;font-weight:800;color:var(--ink);line-height:1.3;}
.offcanvas-close{
  width:38px;height:38px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  font-size:16px;
  cursor:pointer;
  transition:all .2s var(--ease);
}
.offcanvas-close:hover{border-color:var(--brand);color:var(--brand);}
.offcanvas-body{padding:20px;display:flex;flex-direction:column;gap:10px;}
.m-pill{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:48px;
  padding:0 18px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  font-size:15px;
  font-weight:600;
}
.m-pill i{color:var(--muted);font-size:14px;}
.m-pill.active{background:var(--brand);border-color:var(--brand);color:#fff;}
.m-pill.active i{color:rgba(255,255,255,.85);}
.m-cta{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px;}
.m-cta .btn-main{width:100%;}

@media (max-width:991.98px){
  .nav-menu{display:none;}
  .nav-actions{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{min-height:68px;}
  .brand-main{font-size:16px;}
}
@media (max-width:400px){
  .brand-mark{width:40px;height:40px;font-size:17px;}
  .brand-main{font-size:15px;}
}

/* ---------- 通用区块 ---------- */
.section{padding:var(--sp-section) 0;}
.section-tight{padding:64px 0;}
.section-white{background:var(--surface);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 14px;
  border-radius:var(--r-btn);
  background:var(--brand-soft);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
  margin-bottom:16px;
}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:clamp(24px,3.4vw,36px);margin-bottom:16px;}
.section-head p{color:var(--muted);font-size:16px;max-width:680px;}
.text-link{
  color:var(--brand);
  font-weight:600;
  font-size:14px;
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
}
.text-link:hover{color:var(--brand-active);text-decoration-thickness:2px;}
.text-link i{font-size:12px;margin-left:4px;}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  padding:36px 0 72px;
  background:var(--bg);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(16,26,51,.16) 1px,transparent 1px);
  background-size:20px 20px;
  opacity:.055;
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-140px;
  top:-120px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,77,45,.16),rgba(255,77,45,0) 68%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--muted);margin-bottom:26px;flex-wrap:wrap;}
.crumb a{color:var(--muted);font-weight:500;}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#B9BFC9;}
.crumb .current{color:var(--ink);font-weight:700;}
.hero-title{
  font-size:clamp(30px,5vw,44px);
  font-weight:800;
  line-height:1.18;
  border-left:6px solid var(--brand);
  padding-left:18px;
  margin-bottom:20px;
}
.hero-title .hl{color:var(--brand);}
.hero-lead{font-size:16.5px;color:var(--muted);max-width:520px;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:34px;
  padding:0 14px;
  border-radius:var(--r-btn);
  background:#fff;
  border:1px solid var(--line);
  font-size:13px;
  color:var(--ink);
  font-weight:500;
  box-shadow:var(--sh-1);
}
.hero-tag i{color:var(--brand);font-size:12px;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid rgba(255,77,45,.30);
  box-shadow:var(--sh-2);
}
.hero-badge{
  position:absolute;
  left:-10px;
  bottom:18px;
  display:inline-flex;
  align-items:center;
  gap:9px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  padding:10px 18px;
  font-size:13px;
  font-weight:600;
  color:var(--ink);
  box-shadow:var(--sh-2);
}
.dot-live{
  width:8px;height:8px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(23,224,200,.18);
}
@media (max-width:575.98px){
  .hero-title{padding-left:14px;border-left-width:5px;font-size:clamp(26px,7vw,32px);}
  .hero-badge{left:8px;bottom:10px;padding:9px 14px;font-size:12px;}
}

/* ---------- 步骤区 ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start;}
.steps{margin-top:28px;}
.step-item{
  display:flex;
  gap:20px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
  transition:transform .22s var(--ease);
}
.step-item:first-child{border-top:1px solid var(--line);}
.step-item:hover{transform:translateX(4px);}
.step-num{
  font-size:28px;
  font-weight:800;
  color:var(--brand);
  line-height:1;
  min-width:54px;
  font-variant-numeric:tabular-nums;
  padding-top:2px;
}
.step-body h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.step-body p{font-size:14.5px;color:var(--muted);line-height:1.7;}
.split-figure{position:relative;position:sticky;top:110px;}
.split-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.figure-note{
  margin-top:14px;
  font-size:13px;
  color:var(--muted);
  display:flex;
  align-items:center;
  gap:8px;
}
.figure-note i{color:var(--brand);}
@media (max-width:991.98px){
  .split{grid-template-columns:1fr;gap:36px;}
  .split-figure{position:static;order:-1;}
}

/* ---------- 信息卡 ---------- */
.info-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.info-card{
  display:flex;
  gap:18px;
  padding:28px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,77,45,.28);}
.info-icon{
  width:52px;height:52px;
  flex-shrink:0;
  border-radius:16px;
  background:var(--brand-soft);
  color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;
}
.info-card h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.info-card p{font-size:14.5px;color:var(--muted);margin-bottom:14px;line-height:1.7;}
@media (max-width:767.98px){
  .info-grid{grid-template-columns:1fr;}
}

/* ---------- 数据条 ---------- */
.stats-band{
  background:var(--ink);
  color:#fff;
  padding:64px 0;
  position:relative;
  overflow:hidden;
}
.stats-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.045;
  pointer-events:none;
}
.stats-band .container{position:relative;z-index:2;}
.stats-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px;}
.stats-head h2{font-size:clamp(22px,3vw,30px);color:#fff;margin-bottom:10px;}
.stats-head p{color:rgba(255,255,255,.72);font-size:15px;max-width:560px;}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.stat-item{
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-card);
  padding:26px 24px;
  background:rgba(255,255,255,.03);
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.stat-item:hover{border-color:rgba(23,224,200,.42);background:rgba(255,255,255,.06);}
.stat-num{
  font-size:clamp(28px,4vw,40px);
  font-weight:800;
  color:var(--accent);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.stat-item h3{font-size:16px;font-weight:600;color:#fff;margin:12px 0 8px;}
.stat-item p{font-size:14px;color:rgba(255,255,255,.68);line-height:1.7;}
@media (max-width:767.98px){
  .stats-grid{grid-template-columns:1fr;}
  .stats-band{padding:48px 0;}
}

/* ---------- 标签场景区 ---------- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px;}
.tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:38px;
  padding:0 16px;
  border-radius:var(--r-btn);
  background:#fff;
  border:1px solid var(--line);
  font-size:13.5px;
  color:var(--ink);
  font-weight:500;
  transition:all .2s var(--ease);
}
.tag i{color:var(--brand);font-size:12px;}
.tag:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.scene-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.scene-card .chip{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-btn);
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  margin-bottom:14px;
}
.scene-card h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.scene-card p{font-size:14.5px;color:var(--muted);line-height:1.72;}
@media (max-width:991.98px){
  .scene-grid{grid-template-columns:1fr;}
}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:.85fr 1.4fr;gap:48px;align-items:start;}
.faq-accordion .accordion-item{
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:12px;
  background:#fff;
  overflow:hidden;
}
.faq-accordion .accordion-button{
  position:relative;
  width:100%;
  padding:20px 54px 20px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  background:#fff;
  border:0;
  border-radius:14px;
  box-shadow:none;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed){
  background:var(--bg);
  color:var(--brand);
  box-shadow:none;
}
.faq-accordion .accordion-button:not(.collapsed)::before{
  content:"";
  position:absolute;
  left:0;
  top:12px;
  bottom:12px;
  width:4px;
  border-radius:0 4px 4px 0;
  background:var(--brand);
}
.faq-accordion .accordion-button::after{
  content:"";
  position:absolute;
  right:24px;
  top:50%;
  width:9px;
  height:9px;
  margin:0;
  border-right:2px solid var(--muted);
  border-bottom:2px solid var(--muted);
  background-image:none;
  transform:translateY(-70%) rotate(45deg);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  border-color:var(--brand);
  transform:translateY(-30%) rotate(-135deg);
}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 3px rgba(255,77,45,.16);}
.faq-accordion .accordion-body{
  padding:6px 24px 22px;
  font-size:15px;
  color:var(--muted);
  line-height:1.8;
  background:var(--bg);
}
.faq-aside{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--sh-1);
}
.faq-aside h3{font-size:18px;font-weight:700;margin-bottom:12px;}
.faq-aside p{font-size:14.5px;color:var(--muted);margin-bottom:20px;line-height:1.75;}
.faq-aside ul{margin-bottom:22px;}
.faq-aside li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:var(--ink);
  padding:9px 0;
  border-bottom:1px dashed var(--line);
}
.faq-aside li:last-child{border-bottom:0;}
.faq-aside li i{color:var(--brand);font-size:13px;margin-top:5px;}
@media (max-width:991.98px){
  .faq-layout{grid-template-columns:1fr;gap:32px;}
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink);
  color:#fff;
  padding:72px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
  opacity:.5;
  pointer-events:none;
}
.cta-band::after{
  content:"";
  position:absolute;
  left:-120px;
  bottom:-160px;
  width:400px;height:400px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,77,45,.24),rgba(255,77,45,0) 70%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
}
.cta-copy h2{font-size:clamp(24px,3.2vw,34px);color:#fff;margin-bottom:14px;max-width:600px;}
.cta-copy p{color:rgba(255,255,255,.72);font-size:15.5px;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
@media (max-width:767.98px){
  .cta-band{padding:52px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{flex:1 1 auto;}
}

/* ---------- 表单条 ---------- */
.subscribe-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  padding:34px 36px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
}
.subscribe-copy h3{font-size:20px;font-weight:700;margin-bottom:8px;}
.subscribe-copy p{font-size:14.5px;color:var(--muted);max-width:520px;}
.subscribe-form{display:flex;gap:12px;flex:1 1 380px;max-width:520px;}
.subscribe-form .form-control{flex:1 1 auto;min-width:0;}
@media (max-width:767.98px){
  .subscribe-inner{padding:26px 22px;}
  .subscribe-form{flex-direction:column;max-width:100%;}
  .subscribe-form .btn-main{width:100%;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.72);
  padding:72px 0 0;
  position:relative;
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.04;
  pointer-events:none;
}
.site-footer .container{position:relative;z-index:2;}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1.5fr;
  gap:44px;
}
.footer-brand-main{font-size:20px;font-weight:800;color:#fff;line-height:1.3;}
.footer-brand-sub{
  font-size:11.5px;
  letter-spacing:.18em;
  color:var(--accent);
  margin-top:6px;
  margin-bottom:16px;
}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.66);line-height:1.75;max-width:340px;}
.footer-social{display:flex;gap:12px;margin-top:22px;}
.footer-social a{
  width:40px;height:40px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.78);
  font-size:15px;
  transition:all .22s var(--ease);
}
.footer-social a:hover{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateY(-2px);}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul a{
  color:rgba(255,255,255,.68);
  font-size:14px;
  transition:color .2s var(--ease);
}
.footer-col ul a:hover{color:var(--brand);}
.footer-col .note{
  font-size:13px;
  color:rgba(255,255,255,.58);
  line-height:1.75;
  margin-bottom:10px;
}
.footer-col .note strong{color:rgba(255,255,255,.86);font-weight:600;}
.footer-bottom{
  margin-top:52px;
  border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:rgba(255,255,255,.52);
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .site-footer{padding-top:52px;}
  .footer-bottom{margin-top:36px;font-size:12px;}
}

/* ---------- 响应式间距 ---------- */
@media (max-width:991.98px){
  :root{--sp-section:64px;}
  .section-tight{padding:48px 0;}
  .page-hero{padding:28px 0 54px;}
}
@media (max-width:767.98px){
  :root{--sp-section:48px;}
  body{font-size:15.5px;}
  .hero-lead{font-size:15.5px;}
  .section-head{margin-bottom:32px;}
  .hero-figure img,.split-figure img{aspect-ratio:4/3;max-height:260px;}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --brand:#FF4D2D;
  --brand-h:#E13A1A;
  --brand-a:#C42F14;
  --ink:#101A33;
  --ink-2:#1C2A4A;
  --accent:#17E0C8;
  --bg:#F6F5F2;
  --surface:#FFFFFF;
  --line:#E4E1DA;
  --muted:#66707F;
  --r-card:18px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(16,26,51,.06),0 8px 24px rgba(16,26,51,.06);
  --sh-2:0 12px 32px rgba(16,26,51,.12);
  --sp-section:96px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;text-underline-offset:3px;transition:color .22s var(--ease);}
a:hover{color:var(--brand-h);}
h1,h2,h3,h4{margin:0;color:var(--ink);}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--ink);
  color:rgba(255,255,255,.78);
  font-size:12.5px;
  min-height:40px;
  display:flex;
  align-items:center;
}
.topbar .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:40px;
}
.topbar-tip{display:flex;align-items:center;gap:8px;}
.topbar-tip i{color:var(--accent);}
.topbar-links{display:flex;align-items:center;gap:18px;}
.topbar-links a{color:rgba(255,255,255,.78);}
.topbar-links a:hover{color:var(--brand);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--surface);
  border-bottom:1px solid transparent;
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-stuck{
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:78px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  color:var(--ink);
}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:42px;
  height:42px;
  border-radius:13px;
  background:var(--brand);
  color:#fff;
  font-weight:800;
  font-size:19px;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:var(--sh-1);
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:16.5px;font-weight:800;letter-spacing:.2px;}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:.6px;}
.nav-menu{
  display:flex;
  align-items:center;
  gap:10px;
  margin:0 auto;
}
.nav-pill{
  display:inline-flex;
  align-items:center;
  padding:9px 17px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  font-size:14px;
  font-weight:500;
  color:var(--ink);
  background:var(--surface);
  transition:all .22s var(--ease);
  white-space:nowrap;
}
.nav-pill:hover{
  border-color:var(--brand);
  color:var(--brand);
  transform:translateY(-1px);
}
.nav-pill.active{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  box-shadow:0 6px 16px rgba(255,77,45,.28);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink);
  font-size:17px;
  align-items:center;
  justify-content:center;
  transition:all .22s var(--ease);
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:52px;
  padding:0 28px;
  border-radius:var(--r-btn);
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  transition:all .22s var(--ease);
  white-space:nowrap;
}
.btn-sm{height:44px;padding:0 22px;font-size:14px;}
.btn-brand{background:var(--brand);color:#fff;box-shadow:var(--sh-1);}
.btn-brand:hover{background:var(--brand-h);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-brand:active{background:var(--brand-a);transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.btn-ghost-light:hover{background:#fff;border-color:#fff;color:var(--ink);transform:translateY(-2px);}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

/* ---------- 深色分类页头 ---------- */
.cat-hero{
  position:relative;
  color:#fff;
  padding:64px 0 88px;
  overflow:hidden;
  background-color:var(--ink);
  background-image:
    linear-gradient(180deg,rgba(16,26,51,.92),rgba(16,26,51,.97)),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center right;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.09) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.5;
  pointer-events:none;
}
.cat-hero::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:6px;
  background:linear-gradient(90deg,var(--brand) 0%,var(--brand) 42%,var(--accent) 100%);
}
.cat-hero .container{position:relative;z-index:1;}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  font-size:13px;
  color:rgba(255,255,255,.66);
  margin-bottom:26px;
}
.crumb a{color:rgba(255,255,255,.66);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:rgba(255,255,255,.35);}
.crumb .current{color:#fff;font-weight:700;}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 16px;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);
  font-size:13px;
  color:rgba(255,255,255,.86);
  margin-bottom:22px;
}
.hero-badge i{color:var(--accent);}
.cat-hero h1{
  color:#fff;
  font-size:clamp(30px,5vw,52px);
  font-weight:800;
  line-height:1.18;
  max-width:880px;
  margin-bottom:20px;
}
.cat-hero h1 .hl{color:var(--brand);}
.cat-hero .hero-lead{
  color:rgba(255,255,255,.74);
  font-size:17px;
  max-width:660px;
  margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-section) 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  color:var(--brand);
  letter-spacing:1px;
  margin-bottom:14px;
}
.section-head .eyebrow::before{
  content:"";
  width:22px;height:2px;
  background:var(--brand);
  border-radius:2px;
}
.section-head h2{
  font-size:clamp(24px,3.4vw,36px);
  font-weight:700;
  line-height:1.25;
  margin-bottom:16px;
}
.section-head p{color:var(--muted);font-size:16px;}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--r-btn);
  background:rgba(255,77,45,.10);
  color:var(--brand);
  font-size:12.5px;
  font-weight:600;
  border:0;
}
.chip-line{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--muted);
  font-size:12.5px;
}

/* ---------- 大图封面卡 ---------- */
.cover-card{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  background:var(--surface);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.cover-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.cover-card img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}
.cover-card .cover-cap{
  position:absolute;
  left:24px;
  right:24px;
  bottom:24px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.cover-cap-text{
  background:rgba(16,26,51,.86);
  color:#fff;
  padding:12px 20px;
  border-radius:var(--r-btn);
  font-size:14px;
  display:inline-flex;
  align-items:center;
  gap:10px;
}
.cover-cap-text i{color:var(--accent);}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  margin-top:28px;
}
.stat-item{
  background:var(--surface);
  padding:26px 24px;
  text-align:left;
}
.stat-num{
  font-size:clamp(28px,4vw,44px);
  font-weight:800;
  line-height:1;
  color:var(--brand);
  letter-spacing:.5px;
  font-variant-numeric:tabular-nums;
}
.stat-num small{font-size:15px;font-weight:700;margin-left:2px;color:var(--ink);}
.stat-label{font-size:13.5px;color:var(--muted);margin-top:10px;}

/* ---------- 交错图文 ---------- */
.zig-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  margin-bottom:72px;
}
.zig-row:last-child{margin-bottom:0;}
.zig-row.rev .zig-media{order:2;}
.zig-row.rev .zig-text{order:1;}
.zig-media{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.zig-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform .24s var(--ease);
}
.zig-media:hover img{transform:scale(1.04);}
.zig-text .zig-no{
  font-size:14px;
  font-weight:800;
  color:var(--brand);
  letter-spacing:2px;
  margin-bottom:12px;
  display:block;
}
.zig-text h3{
  font-size:22px;
  font-weight:700;
  line-height:1.4;
  margin-bottom:14px;
}
.zig-text p{color:var(--muted);font-size:15.5px;}
.zig-text .text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:16px;
  font-size:14px;
  font-weight:600;
}
.text-link{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.text-link:hover{color:var(--brand-h);text-decoration-thickness:2px;}

/* ---------- 双栏清单 ---------- */
.dual-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.panel{
  border-radius:var(--r-card);
  padding:34px 32px;
  border:1px solid var(--line);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.panel:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.panel-scene{background:var(--surface);}
.panel-care{background:#FFF3EF;border-color:#FFDBD1;}
.panel-head{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:22px;
}
.panel-head .panel-ico{
  width:42px;height:42px;
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;
  flex:0 0 auto;
}
.panel-scene .panel-ico{background:rgba(16,26,51,.06);color:var(--ink);}
.panel-care .panel-ico{background:rgba(255,77,45,.14);color:var(--brand);}
.panel-head h3{font-size:19px;font-weight:700;}
.panel-list li{
  position:relative;
  padding-left:28px;
  margin-bottom:14px;
  font-size:15px;
  color:var(--ink);
  line-height:1.7;
}
.panel-list li:last-child{margin-bottom:0;}
.panel-list li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:8px;height:8px;
  border-radius:2px;
  background:var(--ink);
}
.panel-care .panel-list li::before{background:var(--brand);border-radius:50%;}
.panel-list li span{color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  align-items:start;
}
.accordion-item{
  border:1px solid var(--line);
  border-radius:14px !important;
  overflow:hidden;
  background:var(--surface);
  margin-bottom:12px;
}
.accordion-item:last-child{margin-bottom:0;}
.accordion-button{
  font-size:15.5px;
  font-weight:600;
  color:var(--ink);
  background:var(--surface);
  padding:18px 20px;
  line-height:1.5;
  border-radius:14px !important;
  transition:background .22s var(--ease),box-shadow .22s var(--ease);
}
.accordion-button:not(.collapsed){
  background:var(--bg);
  color:var(--ink);
  box-shadow:inset 4px 0 0 var(--brand);
}
.accordion-button:hover{background:var(--bg);}
.accordion-button:focus{
  box-shadow:inset 4px 0 0 var(--brand);
  border-color:transparent;
  outline:none;
}
.accordion-button::after{
  content:"";
  width:9px;height:9px;
  border-right:2px solid var(--muted);
  border-bottom:2px solid var(--muted);
  background-image:none !important;
  transform:rotate(-45deg);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
  margin-left:14px;
  flex:0 0 auto;
}
.accordion-button:not(.collapsed)::after{
  border-color:var(--brand);
  transform:rotate(45deg);
}
.accordion-body{
  padding:4px 20px 20px;
  font-size:14.5px;
  color:var(--muted);
  background:var(--bg);
  line-height:1.8;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--ink);
  color:#fff;
  border-radius:24px;
  padding:52px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-60px;top:-60px;
  width:260px;height:260px;
  background:var(--brand);
  opacity:.14;
  transform:rotate(28deg);
  border-radius:36px;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{
  color:#fff;
  font-size:clamp(22px,3vw,32px);
  font-weight:800;
  line-height:1.3;
  margin-bottom:12px;
}
.cta-band p{color:rgba(255,255,255,.72);font-size:15px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto;}
.cta-note{
  margin-top:18px;
  font-size:13px;
  color:var(--muted);
  display:flex;
  align-items:center;
  gap:8px;
}
.cta-note i{color:var(--accent);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.72);
  padding:72px 0 26px;
  margin-top:var(--sp-section);
  font-size:14.5px;
  position:relative;
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.6;
  pointer-events:none;
}
.site-footer .container{position:relative;z-index:1;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:44px;
}
.footer-brand-main{
  color:#fff;
  font-size:18px;
  font-weight:800;
  line-height:1.3;
}
.footer-brand-sub{
  color:var(--brand);
  font-size:12.5px;
  letter-spacing:1.5px;
  margin:6px 0 16px;
}
.footer-brand p{color:rgba(255,255,255,.6);font-size:13.5px;line-height:1.8;margin-bottom:20px;}
.footer-social{display:flex;gap:12px;}
.footer-social a{
  width:38px;height:38px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.75);
  transition:all .22s var(--ease);
}
.footer-social a:hover{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  transform:translateY(-3px);
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:18px;
}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{
  color:rgba(255,255,255,.66);
  font-size:14px;
}
.footer-col ul a:hover{color:var(--brand);}
.footer-col .note{
  color:rgba(255,255,255,.55);
  font-size:13px;
  line-height:1.8;
  margin-bottom:12px;
}
.footer-col .note strong{color:rgba(255,255,255,.82);font-weight:600;}
.footer-bottom{
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.10);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:12.5px;
  color:rgba(255,255,255,.5);
}

/* ---------- 移动端抽屉 ---------- */
.offcanvas{
  width:320px !important;
  background:var(--surface);
  border-left:1px solid var(--line) !important;
}
.offcanvas-header{
  padding:20px 22px;
  border-bottom:1px solid var(--line);
}
.offcanvas-body{padding:22px;}
.drawer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  font-weight:800;
  font-size:16px;
}
.drawer-nav{display:flex;flex-direction:column;gap:12px;margin-bottom:26px;}
.drawer-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:48px;
  padding:0 18px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  color:var(--ink);
  font-size:14.5px;
  font-weight:500;
}
.drawer-nav a:hover{border-color:var(--brand);color:var(--brand);}
.drawer-nav a.active{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
}
.drawer-cta{display:flex;flex-direction:column;gap:12px;}
.drawer-cta .btn{width:100%;}
.btn-close{
  background:transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23101A33'%3E%3Cpath d='M4.646 4.646a.5.5 0 0 1 .708 0L8 7.293l2.646-2.647a.5.5 0 0 1 .708.708L8.707 8l2.647 2.646a.5.5 0 0 1-.708.708L8 8.707l-2.646 2.647a.5.5 0 0 1-.708-.708L7.293 8 4.646 5.354a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E") center/1em auto no-repeat;
  opacity:.8;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  :root{--sp-section:80px;}
  .zig-row{gap:40px;}
}
@media (max-width:991.98px){
  :root{--sp-section:64px;}
  .nav-menu{display:none;}
  .nav-actions .btn-ghost{display:none;}
  .nav-toggle{display:inline-flex;}
  .cat-hero{padding:48px 0 64px;}
  .zig-row{grid-template-columns:1fr;gap:26px;margin-bottom:52px;}
  .zig-row.rev .zig-media,
  .zig-row.rev .zig-text{order:0;}
  .dual-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 30px;gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  :root{--sp-section:48px;}
  .container{padding-left:16px;padding-right:16px;}
  .topbar-tip{display:none;}
  .topbar .container{justify-content:flex-end;}
  .brand-main{font-size:15px;}
  .brand-sub{font-size:11px;}
  .cat-hero h1{font-size:clamp(26px,7vw,34px);}
  .cat-hero .hero-lead{font-size:15.5px;}
  .stat-strip{grid-template-columns:1fr;}
  .btn{width:100%;}
  .hero-actions .btn,
  .cta-actions .btn{width:100%;}
  .nav-actions .btn-brand{height:44px;padding:0 18px;width:auto;font-size:13.5px;}
  .cover-card .cover-cap{left:14px;right:14px;bottom:14px;}
  .cover-cap-text{font-size:12.5px;padding:10px 14px;}
  .panel{padding:26px 22px;}
  .zig-media img{aspect-ratio:16/10;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:52px;}
}
@media (max-width:519.98px){
  .brand-mark{width:38px;height:38px;font-size:17px;border-radius:11px;}
  .brand-main{font-size:14px;}
  .btn-sm{height:44px;}
}
@media (min-width:1400px){
  :root{--sp-section:104px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}