/* roulang page: index */
:root{
  --teal:#0E8F8A;
  --teal-deep:#0A6665;
  --teal-soft:#EAF7F4;
  --orange:#F07A45;
  --orange-soft:#FFD7C2;
  --wheat:#F4C95D;
  --sand:#F7F3EA;
  --surface:#FFFFFF;
  --ink:#172326;
  --muted:#5E6E70;
  --line:rgba(14,143,138,0.16);
  --line-strong:rgba(23,35,38,0.10);
  --shadow:0 10px 30px rgba(23,35,38,0.08);
  --shadow-hover:0 16px 42px rgba(23,35,38,0.12);
  --r-xl:34px;
  --r-lg:28px;
  --r-md:22px;
  --r-sm:16px;
  --r-pill:999px;
  --grad:linear-gradient(118deg,#0E8F8A 0%,#37A493 46%,#F07A45 100%);
  --grad-soft:linear-gradient(150deg,rgba(14,143,138,0.10) 0%,rgba(240,122,69,0.10) 100%);
  --font-cn:"Noto Sans SC","HarmonyOS Sans SC","MiSans","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"DIN Alternate","Barlow","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:var(--teal-deep);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--orange);}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.2;font-weight:800;letter-spacing:.01em;color:var(--ink);}
h1{font-size:clamp(32px,4.2vw,52px);line-height:1.16;}
h2{font-size:clamp(24px,2.8vw,36px);line-height:1.25;}
h3{font-size:clamp(18px,1.7vw,22px);line-height:1.35;}
input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:3px solid rgba(14,143,138,0.35);outline-offset:2px;border-radius:8px;}

/* ---------- layout ---------- */
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--teal-deep);
  background:var(--teal-soft);
  border:1px solid var(--line);
  padding:6px 14px;border-radius:var(--r-pill);
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--orange);}
.section-title{font-size:clamp(24px,2.8vw,36px);font-weight:800;}
.section-desc{color:var(--muted);font-size:16px;line-height:1.85;margin-top:14px;max-width:720px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;
  border-radius:var(--r-sm);
  font-weight:700;font-size:15px;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background-image:var(--grad);
  color:#fff;
  box-shadow:0 8px 22px rgba(14,143,138,0.26);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(14,143,138,0.32);color:#fff;}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{
  background:#fff;color:var(--teal-deep);border-color:rgba(14,143,138,0.35);
}
.btn-outline:hover{background:var(--teal-soft);color:var(--teal-deep);transform:translateY(-2px);box-shadow:var(--shadow);}
.btn-dark{background:var(--ink);color:#fff;}
.btn-dark:hover{background:#0e1719;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn-sm{min-height:42px;padding:0 20px;font-size:14px;border-radius:14px;}
.btn-wide{width:100%;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,243,234,0.92);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease,background .25s ease;
}
.site-header.is-stuck{
  background:rgba(255,255,255,0.96);
  box-shadow:0 6px 24px rgba(23,35,38,0.08);
  border-bottom-color:var(--line-strong);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:80px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:44px;height:44px;border-radius:14px;
  background-image:var(--grad);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(14,143,138,0.28);
}
.brand-mark svg{width:24px;height:24px;fill:none;stroke:#fff;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{
  font-size:19px;font-weight:800;letter-spacing:.02em;color:var(--ink);
  line-height:1.2;
}
.brand-text small{display:block;font-size:11px;font-weight:600;color:var(--muted);letter-spacing:.14em;}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;font-weight:600;color:#33474a;
  border-radius:var(--r-pill);
  transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:var(--teal-soft);color:var(--teal-deep);}
.nav-link.is-active{background:var(--teal-soft);color:var(--teal-deep);}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:20px;height:2px;border-radius:2px;background-image:var(--grad);
}
.header-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:13px;
  border:1px solid var(--line);background:#fff;color:var(--teal-deep);
  align-items:center;justify-content:center;font-size:17px;
}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:64px 0 88px;
  overflow:hidden;
  background:
    radial-gradient(900px 460px at 88% -12%,rgba(240,122,69,0.16),transparent 70%),
    radial-gradient(760px 420px at 4% 8%,rgba(14,143,138,0.14),transparent 68%),
    var(--sand);
}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,58%) minmax(0,42%);
  gap:48px;align-items:center;
}
.hero-title{margin-bottom:20px;}
.hero-title span{
  display:block;
  background-image:linear-gradient(96deg,#0A6665 0%,#0E8F8A 52%,#F07A45 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  font-size:18px;line-height:1.8;color:#40565a;max-width:520px;margin-bottom:28px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:13.5px;font-weight:700;color:var(--teal-deep);
  box-shadow:0 4px 14px rgba(23,35,38,0.05);
}
.badge i{color:var(--orange);font-size:12px;}
.badge.num{background:var(--teal-soft);border-color:transparent;}
.badge.num b{font-family:var(--font-num);font-size:15px;color:var(--teal-deep);}

.hero-media{position:relative;padding:0 0 56px 0;}
.hero-img{
  width:100%;height:420px;
  border-radius:var(--r-xl);
  box-shadow:0 24px 60px rgba(23,35,38,0.18);
  object-fit:cover;
  border:6px solid #fff;
}
.hero-img-tint{
  position:absolute;inset:0 0 56px 0;
  border-radius:var(--r-xl);
  background:linear-gradient(200deg,rgba(14,143,138,0.30) 0%,rgba(14,143,138,0.04) 42%,rgba(240,122,69,0.30) 100%);
  pointer-events:none;
}
.hero-card{
  position:absolute;right:0;bottom:0;
  width:250px;
  background:#fff;border-radius:var(--r-md);
  padding:16px;
  box-shadow:var(--shadow-hover);
  border:1px solid var(--line);
  display:flex;gap:12px;align-items:center;
}
.hero-card img{width:60px;height:60px;border-radius:14px;flex-shrink:0;}
.hero-card .hc-label{font-size:11px;font-weight:700;letter-spacing:.1em;color:var(--orange);}
.hero-card .hc-title{font-size:14.5px;font-weight:700;line-height:1.45;color:var(--ink);}
.hero-note{
  position:absolute;left:0;bottom:0;
  background:var(--ink);color:#fff;
  border-radius:var(--r-sm);
  padding:12px 18px;font-size:13px;font-weight:600;
  display:flex;align-items:center;gap:10px;
  box-shadow:var(--shadow);
}
.hero-note i{color:var(--wheat);}

/* ---------- metrics ---------- */
.metrics{
  margin-top:-40px;position:relative;z-index:5;
}
.metrics-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  background:#fff;border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  border:1px solid var(--line-strong);
  overflow:hidden;
}
.metric{
  padding:26px 28px;
  border-right:1px solid var(--line-strong);
}
.metric:last-child{border-right:0;}
.metric-value{
  font-family:var(--font-num);font-size:26px;font-weight:800;color:var(--teal-deep);
  display:flex;align-items:baseline;gap:6px;line-height:1.2;
}
.metric-value span{font-size:13px;font-weight:700;color:var(--muted);font-family:var(--font-cn);}
.metric-label{font-size:13.5px;color:var(--muted);line-height:1.6;margin-top:6px;}

/* ---------- steps ---------- */
.steps{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:28px;position:relative;
}
.step{
  position:relative;
  background:#fff;border-radius:var(--r-lg);
  padding:30px 28px 32px;
  border:1px solid var(--line-strong);
  box-shadow:0 6px 20px rgba(23,35,38,0.05);
  transition:transform .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.step-num{
  width:46px;height:46px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:18px;font-weight:800;
  color:#fff;background-image:var(--grad);
  box-shadow:0 8px 18px rgba(14,143,138,0.24);
  margin-bottom:18px;
}
.step h3{margin-bottom:10px;}
.step p{color:var(--muted);font-size:15px;line-height:1.85;margin:0;}
.step-tip{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--line-strong);
  font-size:13.5px;color:var(--teal-deep);font-weight:600;
  display:flex;gap:8px;align-items:flex-start;
}
.step-tip i{margin-top:4px;color:var(--orange);}

/* ---------- rewards ---------- */
.rewards{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  grid-template-rows:auto auto;
  gap:24px;
}
.reward-card{
  position:relative;
  background:#fff;border-radius:var(--r-lg);
  border:1px solid var(--line-strong);
  box-shadow:0 8px 24px rgba(23,35,38,0.06);
  overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease;
}
.reward-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.reward-card.large{
  grid-row:span 2;
  display:flex;flex-direction:column;
}
.reward-card.large img{height:270px;width:100%;}
.reward-card.small{display:flex;gap:0;align-items:stretch;}
.reward-card.small img{width:40%;min-height:158px;flex-shrink:0;}
.reward-body{padding:26px 26px 28px;}
.reward-card.small .reward-body{padding:22px 22px 22px;}
.reward-tag{
  display:inline-block;padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;letter-spacing:.04em;
  background:var(--teal-soft);color:var(--teal-deep);
  margin-bottom:12px;
}
.reward-tag.warm{background:var(--orange-soft);color:#a03f16;}
.reward-tag.gold{background:rgba(244,201,93,0.28);color:#8a6512;}
.reward-card h3{margin-bottom:8px;}
.reward-card p{color:var(--muted);font-size:14.5px;line-height:1.8;margin:0;}
.reward-check{
  margin-top:16px;display:flex;flex-wrap:wrap;gap:8px;
}
.reward-check span{
  font-size:12.5px;font-weight:600;color:#40565a;
  background:var(--sand);border:1px solid var(--line-strong);
  padding:4px 10px;border-radius:var(--r-pill);
}

/* ---------- dark band ---------- */
.dark-band{
  background:var(--ink);
  color:#fff;
  padding:88px 0;
  border-radius:0;
  position:relative;
  overflow:hidden;
}
.dark-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(700px 340px at 82% 0%,rgba(240,122,69,0.20),transparent 65%),
             radial-gradient(620px 320px at 8% 100%,rgba(14,143,138,0.28),transparent 68%);
  pointer-events:none;
}
.dark-band .container{position:relative;z-index:2;}
.dark-head{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:flex-end;margin-bottom:44px;}
.dark-band h2{color:#fff;}
.dark-band .section-desc{color:rgba(255,255,255,0.68);margin-top:12px;}
.dark-band .eyebrow{background:rgba(255,255,255,0.10);border-color:rgba(255,255,255,0.18);color:#8FE0D8;}
.progress-wrap{
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.12);
  border-radius:var(--r-lg);
  padding:36px 34px 30px;
}
.progress-track{
  position:relative;height:10px;border-radius:var(--r-pill);
  background:rgba(255,255,255,0.14);
  overflow:hidden;
}
.progress-fill{
  position:absolute;left:0;top:0;height:100%;width:0;
  border-radius:var(--r-pill);
  background-image:linear-gradient(90deg,#0E8F8A 0%,#4FBFAE 55%,#F07A45 100%);
  transition:width 1.1s cubic-bezier(.22,.68,.34,1);
}
.progress-nodes{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:12px;margin-top:26px;
}
.pnode{display:flex;flex-direction:column;gap:10px;}
.pnode-dot{
  width:14px;height:14px;border-radius:50%;
  background:rgba(255,255,255,0.28);
  border:2px solid rgba(255,255,255,0.35);
  transition:background .3s ease,border-color .3s ease,transform .3s ease;
}
.pnode.on .pnode-dot{background:var(--wheat);border-color:var(--wheat);transform:scale(1.12);}
.pnode-name{font-size:14.5px;font-weight:700;color:rgba(255,255,255,0.92);}
.pnode-desc{font-size:12.5px;color:rgba(255,255,255,0.55);line-height:1.6;}
.progress-note{
  margin-top:26px;padding-top:20px;border-top:1px solid rgba(255,255,255,0.12);
  font-size:13.5px;color:rgba(255,255,255,0.6);
  display:flex;gap:10px;align-items:flex-start;
}
.progress-note i{color:var(--wheat);margin-top:4px;}

/* ---------- compare ---------- */
.compare{
  background:#fff;border-radius:var(--r-lg);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.compare table{width:100%;border-collapse:collapse;margin:0;}
.compare thead th{
  background:var(--teal-soft);
  color:var(--teal-deep);
  font-size:14px;font-weight:800;
  text-align:left;padding:18px 24px;
  border-bottom:1px solid var(--line);
}
.compare tbody td{
  padding:18px 24px;font-size:14.5px;color:#3c5155;
  border-bottom:1px solid rgba(23,35,38,0.06);
  vertical-align:top;
}
.compare tbody tr:last-child td{border-bottom:0;}
.compare tbody tr:hover td{background:#FBFAF6;}
.compare td:first-child{font-weight:700;color:var(--ink);}
.dot-ok{color:var(--teal);margin-right:6px;}

/* ---------- latest ---------- */
.latest{background:var(--sand);}
.latest-grid{
  display:grid;grid-template-columns:5fr 7fr;gap:28px;align-items:start;
}
.latest-feature{
  background:#fff;border-radius:var(--r-lg);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease;
  display:flex;flex-direction:column;height:100%;
}
.latest-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.latest-feature img{width:100%;height:216px;}
.latest-feature .lf-body{padding:26px 26px 28px;display:flex;flex-direction:column;flex:1;}
.latest-feature h3{font-size:21px;line-height:1.45;margin-bottom:12px;}
.latest-feature h3 a{color:var(--ink);}
.latest-feature h3 a:hover{color:var(--teal-deep);}
.latest-feature p{color:var(--muted);font-size:14.5px;line-height:1.8;margin:0 0 18px;}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);}
.meta .chip{
  background:var(--teal-soft);color:var(--teal-deep);
  padding:4px 11px;border-radius:var(--r-pill);font-weight:700;
}
.meta .chip.warm{background:var(--orange-soft);color:#a03f16;}
.latest-list{display:flex;flex-direction:column;gap:14px;}
.latest-item{
  background:#fff;border-radius:var(--r-md);
  border:1px solid var(--line-strong);
  padding:20px 24px;
  display:flex;gap:18px;align-items:flex-start;justify-content:space-between;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.latest-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line);}
.latest-item .li-main{min-width:0;}
.latest-item h4{font-size:16.5px;font-weight:700;line-height:1.5;margin-bottom:6px;}
.latest-item h4 a{color:var(--ink);}
.latest-item h4 a:hover{color:var(--teal-deep);}
.latest-item p{font-size:13.5px;color:var(--muted);line-height:1.72;margin:0 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.latest-item .li-arrow{
  flex-shrink:0;width:36px;height:36px;border-radius:12px;
  border:1px solid var(--line);color:var(--teal-deep);
  display:flex;align-items:center;justify-content:center;font-size:13px;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.latest-item:hover .li-arrow{background:var(--teal-soft);transform:translateX(3px);}
.empty-state{
  background:#fff;border:1px dashed var(--line);
  border-radius:var(--r-lg);padding:56px 32px;text-align:center;
}
.empty-state i{font-size:30px;color:var(--teal);margin-bottom:14px;display:block;}
.empty-state p{color:var(--muted);margin:0 0 18px;font-size:15px;}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.faq-side h2{margin-bottom:14px;}
.faq-side p{color:var(--muted);font-size:15px;line-height:1.85;margin-bottom:22px;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line-strong);
  border-radius:var(--r-md);overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item.is-open{box-shadow:var(--shadow);border-color:var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:19px 26px 19px 30px;min-height:60px;
  text-align:left;font-size:16.5px;font-weight:700;color:var(--ink);
  position:relative;
  transition:color .2s ease,background .2s ease;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;
  border-radius:0 4px 4px 0;background:var(--teal);
  opacity:0;transition:opacity .2s ease;
}
.faq-item.is-open .faq-q::before{opacity:1;}
.faq-q:hover{background:#FBFAF6;color:var(--teal-deep);}
.faq-icon{
  flex-shrink:0;width:28px;height:28px;border-radius:50%;
  background:var(--teal-soft);color:var(--teal-deep);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;transition:transform .22s ease,background .22s ease,color .22s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--teal);color:#fff;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .24s ease;
}
.faq-a p{
  padding:0 30px 22px;margin:0;
  color:var(--muted);font-size:15px;line-height:1.85;
}

/* ---------- cta ---------- */
.cta-band{
  padding:0 0 96px;
}
.cta-inner{
  position:relative;
  background-image:linear-gradient(118deg,#0A6665 0%,#0E8F8A 46%,#F07A45 100%);
  border-radius:var(--r-xl);
  padding:56px;
  display:grid;grid-template-columns:1fr 420px;gap:48px;align-items:center;
  overflow:hidden;
  box-shadow:0 26px 60px rgba(10,102,101,0.24);
}
.cta-inner::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;
  border-radius:50%;background:rgba(255,255,255,0.10);
}
.cta-copy{position:relative;z-index:2;color:#fff;}
.cta-copy h2{color:#fff;margin-bottom:14px;}
.cta-copy p{color:rgba(255,255,255,0.86);font-size:15.5px;line-height:1.85;max-width:440px;margin-bottom:22px;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;}
.cta-points span{
  font-size:13px;font-weight:600;color:#fff;
  background:rgba(255,255,255,0.16);
  border:1px solid rgba(255,255,255,0.24);
  padding:7px 14px;border-radius:var(--r-pill);
}
.form-card{
  position:relative;z-index:2;
  background:#fff;border-radius:var(--r-lg);
  padding:30px;box-shadow:0 20px 44px rgba(10,40,40,0.24);
}
.form-card h3{font-size:19px;margin-bottom:6px;}
.form-card .form-hint{font-size:13px;color:var(--muted);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:700;color:#3c5155;margin-bottom:8px;}
.field input{
  width:100%;height:48px;padding:0 16px;
  border-radius:var(--r-sm);border:1px solid var(--line-strong);
  background:#FBFAF7;color:var(--ink);
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:#9AA9AB;}
.field input:focus{
  outline:none;background:#fff;border-color:var(--teal);
  box-shadow:0 0 0 3px rgba(14,143,138,0.14);
}
.check-row{display:flex;gap:10px;align-items:flex-start;margin:4px 0 18px;font-size:13px;color:var(--muted);line-height:1.7;}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--teal);flex-shrink:0;}
.form-tip{font-size:12.5px;color:#9AA9AB;margin-top:12px;line-height:1.7;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink);color:rgba(255,255,255,0.72);
  border-top:2px solid transparent;
  background-image:linear-gradient(var(--ink),var(--ink)),var(--grad);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  padding:64px 0 0;
}
.footer-top{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-text small{color:rgba(255,255,255,0.5);}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,0.6);margin:18px 0 0;max-width:320px;}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.03em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,0.66);}
.footer-col a:hover{color:var(--wheat);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.12);
  padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(255,255,255,0.48);
}
.footer-bottom a{color:rgba(255,255,255,0.62);}
.footer-bottom a:hover{color:var(--wheat);}

/* ---------- responsive ---------- */
@media screen and (max-width:1023px){
  .container{padding-left:24px;padding-right:24px;}
  .section{padding:72px 0;}
  .hero{padding:44px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media{padding-bottom:48px;max-width:640px;}
  .hero-img{height:360px;}
  .hero-card{width:220px;}
  .metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metric{border-right:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong);}
  .metric:nth-child(2n){border-right:0;}
  .metric:nth-child(n+3){border-bottom:0;}
  .steps{grid-template-columns:1fr;}
  .rewards{grid-template-columns:1fr;}
  .reward-card.large{grid-row:auto;}
  .latest-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;gap:28px;}
  .cta-inner{grid-template-columns:1fr;padding:40px;gap:32px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
  .main-nav{
    position:absolute;top:calc(100% + 10px);left:20px;right:20px;
    flex-direction:column;align-items:stretch;gap:6px;
    background:#fff;border-radius:20px;
    padding:16px;box-shadow:0 22px 48px rgba(23,35,38,0.16);
    border:1px solid var(--line-strong);
    display:none;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{padding:12px 16px;font-size:15.5px;border-radius:14px;}
  .nav-link.is-active::after{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-sm{display:none;}
  .site-header{position:sticky;}
}
@media screen and (max-width:767px){
  body{font-size:15.5px;}
  .section{padding:60px 0;}
  .header-inner{min-height:68px;}
  .brand-mark{width:38px;height:38px;border-radius:12px;}
  .brand-text{font-size:16.5px;}
  .brand-text small{font-size:10px;letter-spacing:.1em;}
  .hero-img{height:290px;border-width:4px;}
  .hero-card{position:relative;right:auto;bottom:auto;width:100%;margin-top:-36px;margin-left:16px;margin-right:16px;width:calc(100% - 32px);}
  .hero-note{position:relative;left:auto;bottom:auto;margin-top:14px;display:inline-flex;}
  .hero-media{padding-bottom:0;}
  .hero-img-tint{inset:0;border-radius:var(--r-xl);}
  .hero-cta .btn{width:100%;}
  .metrics-grid{grid-template-columns:1fr;}
  .metric{border-right:0;border-bottom:1px solid var(--line-strong);padding:20px 22px;}
  .metric:nth-child(n+3){border-bottom:1px solid var(--line-strong);}
  .metric:last-child{border-bottom:0;}
  .reward-card.small{flex-direction:column;}
  .reward-card.small img{width:100%;height:170px;}
  .dark-band{padding:64px 0;}
  .progress-wrap{padding:26px 22px;}
  .progress-nodes{grid-template-columns:1fr 1fr;gap:18px;}
  .compare thead th,.compare tbody td{padding:14px 16px;font-size:13.5px;}
  .latest-item{padding:18px;gap:12px;}
  .faq-q{font-size:16px;padding:17px 18px 17px 22px;}
  .faq-a p{padding:0 22px 20px;}
  .cta-band{padding-bottom:64px;}
  .cta-inner{padding:30px 22px;border-radius:26px;}
  .form-card{padding:24px 20px;}
  .footer-top{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .footer-bottom{font-size:12px;}
}
@media screen and (max-width:519px){
  .container{padding-left:18px;padding-right:18px;}
  h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .badge{font-size:12.5px;padding:7px 13px;}
  .section-title{font-size:24px;}
}

/* roulang page: category1 */
:root{
  --brand:#0E8F8A;
  --brand-dark:#0A6665;
  --brand-soft:#EAF7F4;
  --accent:#F07A45;
  --accent-soft:#FFD7C2;
  --gold:#F4C95D;
  --bg:#F7F3EA;
  --surface:#FFFFFF;
  --ink:#172326;
  --muted:#5E6E70;
  --line:rgba(14,143,138,.16);
  --line-strong:rgba(14,143,138,.28);
  --shadow:0 10px 30px rgba(23,35,38,.08);
  --shadow-hover:0 16px 42px rgba(23,35,38,.12);
  --r-lg:32px;
  --r-md:24px;
  --r-sm:16px;
  --r-pill:999px;
  --container:1220px;
  --gap-lg:32px;
  --gap-md:24px;
  --sec:96px;
  --grad:linear-gradient(120deg,#0E8F8A 0%,#12A0A0 45%,#F07A45 100%);
  --grad-soft:linear-gradient(140deg,rgba(14,143,138,.14),rgba(240,122,69,.16));
}

*,
*::before,
*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  font-family:"Noto Sans SC","HarmonyOS Sans SC","MiSans","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;object-fit:cover;}
a{color:var(--brand-dark);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--accent);}
button{font-family:inherit;cursor:pointer;}
input,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:3px solid rgba(14,143,138,.35);outline-offset:3px;border-radius:8px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  font-size:16px;
  font-weight:700;
  letter-spacing:.01em;
  line-height:1;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  text-align:center;
}
.btn-primary{
  background:var(--grad);
  color:#fff;
  box-shadow:0 10px 24px rgba(14,143,138,.26);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(14,143,138,.32);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 8px 18px rgba(14,143,138,.24);}
.btn-ghost{
  background:var(--surface);
  color:var(--brand-dark);
  border-color:var(--line-strong);
  box-shadow:0 4px 14px rgba(23,35,38,.05);
}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-2px);box-shadow:var(--shadow);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{min-height:42px;padding:0 20px;font-size:14px;border-radius:12px;}
.btn-accent{
  background:linear-gradient(120deg,#F07A45,#F4A15D);
  color:#fff;
  box-shadow:0 10px 24px rgba(240,122,69,.28);
}
.btn-accent:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(240,122,69,.34);}
.btn-block{width:100%;}

/* ---------- 标签 / 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:var(--r-pill);
  background:var(--brand-soft);
  color:var(--brand-dark);
  font-size:13.5px;
  font-weight:600;
  line-height:1.4;
  border:1px solid rgba(14,143,138,.12);
}
.badge .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--brand);flex:0 0 auto;
}
.badge-gold{background:rgba(244,201,93,.22);color:#8A6413;border-color:rgba(244,201,93,.4);}
.badge-gold .dot{background:var(--gold);}
.badge-orange{background:rgba(240,122,69,.14);color:#B44E24;border-color:rgba(240,122,69,.26);}
.badge-orange .dot{background:var(--accent);}
.badge-list{display:flex;flex-wrap:wrap;gap:10px;}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--brand-dark);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:26px;height:2px;border-radius:2px;
  background:var(--grad);
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(247,243,234,.92);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom-color:var(--line);
  box-shadow:0 6px 24px rgba(23,35,38,.07);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:80px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  color:var(--ink);
}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:14px;
  background:var(--grad);
  box-shadow:0 8px 20px rgba(14,143,138,.24);
  flex:0 0 auto;
}
.brand-mark svg{
  width:26px;height:26px;
  fill:none;stroke:#fff;stroke-width:1.7;
  stroke-linecap:round;stroke-linejoin:round;
}
.brand-text{
  display:flex;
  flex-direction:column;
  font-size:17px;
  font-weight:800;
  letter-spacing:.01em;
  line-height:1.25;
}
.brand-text small{
  font-size:11.5px;
  font-weight:500;
  letter-spacing:.16em;
  color:var(--muted);
  margin-top:2px;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  padding:10px 14px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  white-space:nowrap;
  transition:background-color .2s ease,color .2s ease;
}
.nav-link:hover{background:rgba(14,143,138,.1);color:var(--brand-dark);}
.nav-link.is-active{
  background:var(--brand-soft);
  color:var(--brand-dark);
  box-shadow:inset 0 0 0 1px rgba(14,143,138,.18);
}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:50%;bottom:4px;
  transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;
  background:var(--grad);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:14px;
  border:1px solid var(--line-strong);
  background:#fff;
  color:var(--brand-dark);
  font-size:17px;
  align-items:center;
  justify-content:center;
  transition:background-color .2s ease,color .2s ease;
}
.nav-toggle:hover{background:var(--brand-soft);}

/* ---------- 面包屑 ---------- */
.crumb-bar{
  background:#fff;
  border-bottom:1px solid var(--line);
}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  padding:16px 0;
  font-size:13.5px;
  color:var(--muted);
}
.crumb a{color:var(--brand-dark);font-weight:600;}
.crumb .sep{opacity:.5;}
.crumb .current{color:var(--muted);}

/* ---------- Hero ---------- */
.entry-hero{
  position:relative;
  padding:64px 0 88px;
  background:
    radial-gradient(720px 360px at 88% 0%,rgba(240,122,69,.13),transparent 62%),
    radial-gradient(680px 420px at 4% 8%,rgba(14,143,138,.14),transparent 60%),
    var(--bg);
  overflow:hidden;
}
.entry-hero::after{
  content:"";
  position:absolute;
  right:-140px;top:-120px;
  width:420px;height:420px;
  border-radius:50%;
  background:var(--grad-soft);
  filter:blur(20px);
  z-index:0;
}
.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,.82fr);
  gap:56px;
  align-items:center;
}
.hero-copy h1{
  font-size:50px;
  font-weight:800;
  line-height:1.14;
  letter-spacing:.01em;
  margin:18px 0 18px;
}
.hero-copy h1 .hl{
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  font-size:18px;
  line-height:1.7;
  color:var(--muted);
  max-width:560px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:30px;
}
.hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:30px;
  padding-top:26px;
  border-top:1px dashed rgba(14,143,138,.24);
}
.hero-visual{position:relative;}
.hero-visual .frame{
  position:relative;
  border-radius:36px;
  overflow:hidden;
  box-shadow:var(--shadow-hover);
  border:1px solid rgba(255,255,255,.7);
}
.hero-visual .frame img{
  width:100%;
  height:440px;
  object-fit:cover;
}
.hero-visual .frame::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(155deg,rgba(14,143,138,.42),rgba(240,122,69,.28) 68%,rgba(23,35,38,.35));
}
.frame-tag{
  position:absolute;
  left:22px;top:22px;
  z-index:2;
  padding:8px 16px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.92);
  color:var(--brand-dark);
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
}
.frame-note{
  position:absolute;
  right:22px;bottom:22px;
  z-index:2;
  width:210px;
  padding:18px 20px;
  border-radius:var(--r-md);
  background:rgba(255,255,255,.95);
  box-shadow:var(--shadow);
}
.frame-note strong{
  display:block;
  font-size:26px;
  font-weight:800;
  color:var(--brand-dark);
  line-height:1.2;
}
.frame-note span{
  display:block;
  margin-top:4px;
  font-size:12.5px;
  color:var(--muted);
  line-height:1.6;
}
.visual-chip{
  position:absolute;
  left:-14px;
  bottom:-22px;
  display:flex;
  align-items:center;
  gap:10px;
  padding:14px 20px;
  border-radius:var(--r-sm);
  background:#fff;
  box-shadow:var(--shadow);
  font-size:13.5px;
  font-weight:700;
  color:var(--brand-dark);
}
.visual-chip i{color:var(--accent);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0;}
.section-tight{padding:72px 0;}
.section-head{
  max-width:760px;
  margin-bottom:44px;
}
.section-head h2{
  font-size:36px;
  font-weight:700;
  line-height:1.25;
  margin:14px 0 14px;
  letter-spacing:.01em;
}
.section-head p{
  color:var(--muted);
  font-size:16.5px;
  max-width:720px;
}

/* ---------- 入口类型清单 ---------- */
.entry-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:var(--gap-lg);
}
.entry-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:32px;
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  gap:16px;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  overflow:hidden;
}
.entry-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:var(--line-strong);
}
.entry-card.wide{grid-column:span 7;}
.entry-card.narrow{grid-column:span 5;}
.entry-card .card-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.entry-card h3{
  font-size:23px;
  font-weight:700;
  line-height:1.35;
}
.entry-card p{
  color:var(--muted);
  font-size:15.5px;
  line-height:1.8;
}
.entry-card .cover{
  border-radius:var(--r-md);
  overflow:hidden;
  margin-top:2px;
}
.entry-card .cover img{
  width:100%;
  height:180px;
  object-fit:cover;
  transition:transform .4s ease;
}
.entry-card:hover .cover img{transform:scale(1.04);}
.entry-card .card-foot{
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:700;
  font-size:14.5px;
  color:var(--brand-dark);
}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover{color:var(--accent);}
.link-arrow:hover i{transform:translateX(4px);}
.entry-num{
  font-family:"DIN Alternate","Barlow",sans-serif;
  font-size:13px;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--brand);
  background:var(--brand-soft);
  padding:6px 12px;
  border-radius:var(--r-pill);
}

/* ---------- 步骤 ---------- */
.step-wrap{
  display:grid;
  grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
  gap:56px;
  align-items:start;
}
.step-list{
  position:relative;
  padding-left:8px;
}
.step-item{
  position:relative;
  padding:0 0 34px 62px;
}
.step-item:last-child{padding-bottom:0;}
.step-item::before{
  content:"";
  position:absolute;
  left:21px;
  top:44px;
  bottom:6px;
  width:2px;
  background:linear-gradient(180deg,rgba(14,143,138,.4),rgba(240,122,69,.28));
  border-radius:2px;
}
.step-item:last-child::before{display:none;}
.step-dot{
  position:absolute;
  left:0;top:0;
  width:44px;height:44px;
  border-radius:50%;
  display:grid;place-items:center;
  background:#fff;
  border:2px solid var(--brand);
  color:var(--brand-dark);
  font-weight:800;
  font-size:15px;
  font-family:"DIN Alternate","Barlow",sans-serif;
  box-shadow:0 6px 16px rgba(14,143,138,.16);
}
.step-item h3{
  font-size:20px;
  font-weight:700;
  margin-bottom:8px;
  line-height:1.4;
}
.step-item p{
  color:var(--muted);
  font-size:15.5px;
}
.step-tip{
  margin-top:10px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:#B44E24;
  background:rgba(240,122,69,.1);
  border-radius:var(--r-pill);
  padding:6px 14px;
}
.step-aside{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:32px;
  box-shadow:var(--shadow);
}
.step-aside h3{
  font-size:22px;
  font-weight:700;
  margin-bottom:10px;
}
.step-aside > p{color:var(--muted);font-size:15px;}
.check-list{margin-top:20px;display:grid;gap:14px;}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15.5px;
  color:var(--ink);
  line-height:1.7;
}
.check-list i{
  color:var(--brand);
  margin-top:6px;
  font-size:14px;
  flex:0 0 auto;
}
.aside-cover{
  margin-top:24px;
  border-radius:var(--r-md);
  overflow:hidden;
  position:relative;
}
.aside-cover img{width:100%;height:170px;object-fit:cover;}
.aside-cover span{
  position:absolute;
  left:14px;bottom:14px;
  background:rgba(255,255,255,.94);
  color:var(--brand-dark);
  font-size:12.5px;
  font-weight:700;
  padding:6px 14px;
  border-radius:var(--r-pill);
}

/* ---------- 深色核对区块 ---------- */
.audit{
  background:var(--ink);
  color:#EAF2F1;
  border-radius:40px;
  padding:56px;
  position:relative;
  overflow:hidden;
}
.audit::before{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:380px;height:380px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(14,143,138,.45),transparent 68%);
}
.audit-grid{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);
  gap:48px;
  align-items:center;
}
.audit h2{
  font-size:34px;
  font-weight:700;
  line-height:1.28;
  margin:14px 0 14px;
}
.audit .eyebrow{color:#8FE3DE;}
.audit .eyebrow::before{background:linear-gradient(90deg,#8FE3DE,#F4C95D);}
.audit p{color:rgba(234,242,241,.76);font-size:16px;}
.audit-metrics{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:18px;
}
.metric{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-md);
  padding:22px 24px;
  transition:background-color .24s ease,transform .24s ease;
}
.metric:hover{background:rgba(255,255,255,.1);transform:translateY(-3px);}
.metric strong{
  display:block;
  font-size:30px;
  font-weight:800;
  line-height:1.2;
  color:#fff;
  font-family:"DIN Alternate","Barlow",sans-serif;
}
.metric span{
  display:block;
  margin-top:6px;
  font-size:13.5px;
  color:rgba(234,242,241,.7);
  line-height:1.6;
}

/* ---------- 标签组 ---------- */
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:22px;
}
.tag{
  padding:10px 18px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid var(--line);
  font-size:14px;
  font-weight:600;
  color:var(--brand-dark);
  transition:background-color .2s ease,transform .2s ease,border-color .2s ease;
}
.tag:hover{background:var(--brand-soft);transform:translateY(-2px);border-color:var(--line-strong);}

/* ---------- FAQ ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr);
  gap:56px;
  align-items:start;
}
.faq-intro h2{
  font-size:34px;
  font-weight:700;
  line-height:1.28;
  margin:14px 0 16px;
}
.faq-intro p{color:var(--muted);font-size:16px;}
.faq-intro .btn{margin-top:24px;}
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:0 6px 20px rgba(23,35,38,.05);
  overflow:hidden;
  transition:box-shadow .24s ease,border-color .24s ease;
}
.faq-item[open]{
  border-color:var(--line-strong);
  box-shadow:var(--shadow);
}
.faq-item summary{
  list-style:none;
  display:flex;
  align-items:center;
  gap:16px;
  min-height:64px;
  padding:16px 24px 16px 22px;
  font-size:16.5px;
  font-weight:700;
  color:var(--ink);
  cursor:pointer;
  position:relative;
  transition:color .2s ease,background-color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-dark);background:rgba(234,247,244,.5);}
.faq-item summary::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:3px;
  background:var(--grad);
  opacity:0;
  transition:opacity .2s ease;
}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary .q-icon{
  margin-left:auto;
  width:28px;height:28px;
  flex:0 0 auto;
  display:grid;place-items:center;
  border-radius:50%;
  background:var(--brand-soft);
  color:var(--brand-dark);
  font-size:12px;
  transition:transform .22s ease,background-color .22s ease,color .22s ease;
}
.faq-item[open] summary .q-icon{
  transform:rotate(180deg);
  background:var(--brand);
  color:#fff;
}
.faq-body{
  padding:0 24px 22px 22px;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.9;
  border-top:1px solid var(--line);
  padding-top:18px;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  border-radius:40px;
  padding:56px;
  background:var(--grad);
  color:#fff;
  overflow:hidden;
  box-shadow:0 24px 60px rgba(14,143,138,.24);
}
.cta-band::after{
  content:"";
  position:absolute;
  left:-80px;bottom:-160px;
  width:360px;height:360px;
  border-radius:50%;
  background:rgba(255,255,255,.14);
}
.cta-inner{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:42px;
  align-items:center;
}
.cta-inner h2{
  font-size:34px;
  font-weight:800;
  line-height:1.26;
  margin-bottom:14px;
}
.cta-inner p{color:rgba(255,255,255,.9);font-size:16px;max-width:460px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.cta-actions .btn-ghost{
  background:rgba(255,255,255,.16);
  color:#fff;
  border-color:rgba(255,255,255,.5);
}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.26);color:#fff;}
.cta-panel{
  background:rgba(255,255,255,.96);
  border-radius:var(--r-lg);
  padding:28px;
  color:var(--ink);
  box-shadow:0 20px 44px rgba(23,35,38,.18);
}
.cta-panel h3{font-size:19px;font-weight:800;margin-bottom:6px;}
.cta-panel p{color:var(--muted);font-size:14px;margin-bottom:18px;}
.field{margin-bottom:16px;}
.field label{
  display:block;
  font-size:13.5px;
  font-weight:700;
  margin-bottom:8px;
  color:var(--ink);
}
.field input{
  width:100%;
  height:48px;
  padding:0 16px;
  border-radius:var(--r-sm);
  border:1px solid var(--line-strong);
  background:#FBFDFC;
  color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field input::placeholder{color:#9AA8A8;}
.field input:focus{
  outline:none;
  border-color:var(--brand);
  background:#fff;
  box-shadow:0 0 0 4px rgba(14,143,138,.14);
}
.form-note{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:12.5px;
  color:var(--muted);
  line-height:1.7;
  margin-bottom:16px;
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink);
  color:#D8E3E2;
  margin-top:var(--sec);
  border-top:2px solid transparent;
  border-image:linear-gradient(90deg,#0E8F8A,#F07A45) 1;
  padding:64px 0 26px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand .brand{color:#fff;}
.footer-brand .brand:hover{color:#fff;}
.footer-brand .brand-text small{color:rgba(216,227,226,.6);}
.footer-brand p{
  margin-top:18px;
  font-size:14.5px;
  line-height:1.85;
  color:rgba(216,227,226,.72);
  max-width:340px;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{
  color:rgba(216,227,226,.74);
  font-size:14.5px;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-col a:hover{color:#8FE3DE;padding-left:4px;}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13.5px;
  color:rgba(216,227,226,.6);
}
.footer-bottom a{color:#8FE3DE;}
.footer-bottom a:hover{color:var(--gold);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1180px){
  .main-nav{gap:0;}
  .nav-link{padding:10px 10px;font-size:14.5px;}
  .hero-copy h1{font-size:44px;}
}

@media screen and (max-width:1023px){
  .container{padding:0 24px;}
  :root{--sec:76px;}
  .header-inner{min-height:72px;gap:14px;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:absolute;
    left:16px;
    right:16px;
    top:calc(100% + 10px);
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:18px;
    background:#FFFDF9;
    border:1px solid var(--line);
    border-radius:20px;
    box-shadow:0 22px 48px rgba(23,35,38,.16);
    display:none;
    margin-left:0;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{padding:12px 16px;font-size:15.5px;}
  .nav-link.is-active::after{display:none;}
  .header-actions .btn-sm{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-copy h1{font-size:40px;}
  .hero-visual .frame img{height:360px;}
  .visual-chip{left:12px;bottom:-16px;}
  .entry-card.wide,
  .entry-card.narrow{grid-column:span 12;}
  .step-wrap,
  .faq-grid,
  .audit-grid,
  .cta-inner{grid-template-columns:1fr;gap:36px;}
  .audit{padding:40px;border-radius:32px;}
  .cta-band{padding:40px;border-radius:32px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
  .section-head h2{font-size:30px;}
  .faq-intro h2,.audit h2,.cta-inner h2{font-size:28px;}
}

@media screen and (max-width:767px){
  .container{padding:0 20px;}
  :root{--sec:64px;}
  .brand-text{font-size:15.5px;}
  .brand-text small{font-size:10.5px;letter-spacing:.12em;}
  .brand-mark{width:40px;height:40px;border-radius:12px;}
  .entry-hero{padding:40px 0 64px;}
  .hero-copy h1{font-size:32px;margin:14px 0 14px;}
  .hero-lead{font-size:16px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .hero-visual .frame img{height:280px;}
  .frame-note{width:170px;padding:14px 16px;right:14px;bottom:14px;}
  .frame-note strong{font-size:21px;}
  .entry-card{padding:24px;border-radius:26px;}
  .entry-card h3{font-size:20px;}
  .entry-card .cover img{height:150px;}
  .step-item{padding-left:56px;}
  .step-dot{width:40px;height:40px;font-size:14px;}
  .step-item::before{left:19px;}
  .section-head h2{font-size:26px;}
  .audit{padding:28px;border-radius:26px;}
  .audit-metrics{grid-template-columns:1fr;}
  .cta-band{padding:28px;border-radius:26px;}
  .cta-panel{padding:22px;}
  .faq-item summary{font-size:16px;padding:14px 18px 14px 18px;min-height:58px;}
  .faq-body{padding:16px 18px 20px;}
  .footer-top{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .metric strong{font-size:26px;}
}

@media screen and (max-width:520px){
  .hero-copy h1{font-size:29px;}
  .badge{font-size:12.5px;padding:7px 13px;}
  .btn{min-height:48px;font-size:15px;}
  .hero-badges{gap:8px;}
  .step-item{padding-left:52px;}
  .tag{font-size:13px;padding:9px 14px;}
}

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

/* roulang page: article */
:root{
  --teal:#0E8F8A;
  --teal-dark:#0A6665;
  --teal-soft:#EAF7F4;
  --orange:#F07A45;
  --orange-soft:#FFD7C2;
  --wheat:#F4C95D;
  --bg:#F7F3EA;
  --surface:#FFFFFF;
  --ink:#172326;
  --ink-soft:#2A3538;
  --muted:#5E6E70;
  --line:rgba(14,143,138,.16);
  --shadow:0 10px 30px rgba(23,35,38,.08);
  --shadow-lg:0 16px 42px rgba(23,35,38,.12);
  --radius-xl:32px;
  --radius-lg:28px;
  --radius-md:22px;
  --radius-sm:16px;
  --radius-pill:999px;
  --container:1200px;
  --grad:linear-gradient(120deg,#0E8F8A 0%,#23A79F 55%,#F07A45 100%);
  --grad-soft:linear-gradient(135deg,rgba(14,143,138,.10),rgba(240,122,69,.12));
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","HarmonyOS Sans SC","MiSans","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--teal-dark);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--orange);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.2;font-weight:800;letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--radius-sm);
  font-weight:700;font-size:15px;line-height:1;border:1px solid transparent;
  cursor:pointer;text-align:center;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-sm{min-height:42px;padding:0 18px;font-size:14px;border-radius:12px;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 22px rgba(14,143,138,.28);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 32px rgba(14,143,138,.34);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;color:var(--teal-dark);border-color:var(--line);box-shadow:0 4px 14px rgba(23,35,38,.05);}
.btn-ghost:hover{background:var(--teal-soft);color:var(--teal-dark);transform:translateY(-2px);}
.btn-orange{background:linear-gradient(120deg,#F07A45,#F4C95D);color:#fff;box-shadow:0 8px 22px rgba(240,122,69,.30);}
.btn-orange:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 32px rgba(240,122,69,.36);}
.btn-light{background:#fff;color:var(--ink);box-shadow:0 8px 22px rgba(0,0,0,.14);}
.btn-light:hover{color:var(--teal-dark);transform:translateY(-2px);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(14,143,138,.30);outline-offset:2px;}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,243,234,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(23,35,38,.10);border-bottom-color:var(--line);background:rgba(247,243,234,.97);}
.header-inner{
  position:relative;display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:80px;
}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:42px;height:42px;flex:none;border-radius:14px;
  background:var(--grad);display:grid;place-items:center;
  box-shadow:0 8px 18px rgba(14,143,138,.28);
}
.brand-mark svg{width:24px;height:24px;fill:none;stroke:#fff;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{display:flex;flex-direction:column;font-size:17px;font-weight:800;line-height:1.25;letter-spacing:.01em;}
.brand-text small{font-size:11.5px;font-weight:500;color:var(--muted);letter-spacing:.08em;margin-top:2px;}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  display:inline-flex;align-items:center;
  padding:10px 14px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;color:var(--muted);white-space:nowrap;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.nav-link:hover{background:var(--teal-soft);color:var(--teal-dark);}
.nav-link.is-active{background:var(--teal-soft);color:var(--teal-dark);box-shadow:inset 0 -2px 0 var(--teal);}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:14px;border:1px solid var(--line);
  background:#fff;color:var(--teal-dark);font-size:17px;cursor:pointer;
  transition:background .2s ease,color .2s ease;
}
.nav-toggle:hover{background:var(--teal-soft);}

/* ============ BREADCRUMB ============ */
.crumb-bar{border-bottom:1px solid var(--line);background:rgba(255,255,255,.55);}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  padding:16px 0;font-size:13.5px;color:var(--muted);
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--teal-dark);}
.crumb i{font-size:10px;color:rgba(94,110,112,.6);}
.crumb .crumb-current{
  color:var(--teal-dark);font-weight:600;max-width:min(520px,70vw);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ============ ARTICLE LAYOUT ============ */
.article-shell{
  display:grid;grid-template-columns:minmax(0,1fr) 336px;
  gap:40px;padding:48px 0 88px;align-items:start;
}
.article-main{min-width:0;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:var(--teal-soft);color:var(--teal-dark);
  font-size:12.5px;font-weight:700;letter-spacing:.04em;
}
.tag-wheat{background:rgba(244,201,93,.22);color:#8a6512;}
.tag-orange{background:rgba(240,122,69,.14);color:#b4512a;}
.article-title{
  font-size:clamp(30px,3.6vw,46px);line-height:1.2;font-weight:800;
  margin:18px 0 20px;overflow-wrap:break-word;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  padding-bottom:24px;border-bottom:1px solid var(--line);
  font-size:13.5px;color:var(--muted);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--teal);font-size:12.5px;}
.article-figure{
  margin:28px 0 34px;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow);position:relative;background:var(--teal-soft);
}
.article-figure img{width:100%;height:340px;object-fit:cover;}
.article-figure figcaption{
  padding:12px 20px;font-size:13px;color:var(--muted);
  background:#fff;border-top:1px solid var(--line);
}

.article-body{max-width:820px;font-size:17px;line-height:1.9;color:var(--ink-soft);}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  position:relative;font-size:clamp(24px,2.5vw,30px);font-weight:800;
  color:var(--ink);margin:44px 0 16px;padding-left:16px;line-height:1.35;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:5px;
  border-radius:4px;background:var(--grad);
}
.article-body h3{font-size:21px;font-weight:700;margin:32px 0 12px;color:var(--ink);}
.article-body h4{font-size:17.5px;font-weight:700;margin:24px 0 10px;color:var(--teal-dark);}
.article-body p{margin:0 0 18px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:4px;}
.article-body ul li,.article-body ol li{position:relative;padding-left:24px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:8px;height:8px;border-radius:50%;
  background:var(--grad);
}
.article-body ol{counter-reset:olcounter;}
.article-body ol li{counter-increment:olcounter;}
.article-body ol li::before{
  content:counter(olcounter);
  position:absolute;left:0;top:.28em;width:20px;height:20px;border-radius:50%;
  background:var(--teal-soft);color:var(--teal-dark);
  font-size:12px;font-weight:700;display:grid;place-items:center;line-height:1;
}
.article-body blockquote{
  margin:26px 0;padding:20px 24px;border-left:4px solid var(--teal);
  background:var(--teal-soft);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--teal-dark);font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-md);margin:24px 0;box-shadow:var(--shadow);}
.article-body a{color:var(--teal-dark);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--orange);}
.article-body hr{border:0;height:1px;background:var(--line);margin:36px 0;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;background:#fff;border-radius:var(--radius-sm);overflow:hidden;box-shadow:var(--shadow);}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{background:var(--teal-soft);color:var(--teal-dark);font-weight:700;}
.article-body code{background:rgba(23,35,38,.06);padding:2px 7px;border-radius:6px;font-size:14px;}

.article-empty{
  max-width:640px;text-align:center;padding:56px 28px;background:#fff;
  border-radius:var(--radius-lg);border:1px solid var(--line);box-shadow:var(--shadow);
}
.article-empty i{font-size:34px;color:var(--teal);}
.article-empty h2{font-size:24px;margin:16px 0 10px;}
.article-empty p{color:var(--muted);font-size:15px;margin-bottom:22px;}

/* ============ SIDEBAR ============ */
.article-side{min-width:0;}
.side-sticky{position:sticky;top:104px;display:grid;gap:22px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:24px;box-shadow:var(--shadow);
}
.side-card h3{
  font-size:16px;font-weight:800;margin-bottom:16px;
  display:flex;align-items:center;gap:8px;color:var(--ink);
}
.side-card h3 i{color:var(--teal);font-size:14px;}
.side-list li + li{margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);}
.side-list a{display:block;color:var(--ink);font-weight:700;font-size:14.5px;line-height:1.55;}
.side-list a:hover{color:var(--teal-dark);}
.side-list p{font-size:13px;line-height:1.7;color:var(--muted);margin-top:6px;}
.side-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;}
.chip{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:var(--radius-pill);
  background:var(--teal-soft);color:var(--teal-dark);font-size:11.5px;font-weight:700;
}
.chip-wheat{background:rgba(244,201,93,.24);color:#8a6512;}
.side-cta{
  background:linear-gradient(150deg,#172326 0%,#1d3a3a 100%);
  border-radius:var(--radius-md);padding:26px;color:#fff;box-shadow:var(--shadow-lg);
  position:relative;overflow:hidden;
}
.side-cta::after{
  content:"";position:absolute;right:-40px;top:-40px;width:140px;height:140px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,143,138,.55),transparent 70%);
}
.side-cta h3{color:#fff;font-size:17px;margin-bottom:10px;position:relative;z-index:1;}
.side-cta p{font-size:13.5px;line-height:1.75;color:rgba(255,255,255,.72);position:relative;z-index:1;margin-bottom:18px;}
.side-cta .btn{width:100%;position:relative;z-index:1;}
.side-back{
  display:flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;border-radius:var(--radius-sm);border:1px dashed var(--line);
  background:rgba(255,255,255,.7);color:var(--teal-dark);font-size:14px;font-weight:700;
  transition:background .2s ease,border-color .2s ease;
}
.side-back:hover{background:var(--teal-soft);border-color:var(--teal);color:var(--teal-dark);}

/* ============ RELATED ============ */
.related-section{padding:0 0 88px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:30px;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);}
.section-head p{color:var(--muted);font-size:15px;margin-top:8px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.related-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(14,143,138,.34);}
.related-card figure{margin:0;height:168px;overflow:hidden;background:var(--teal-soft);}
.related-card figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.related-card:hover figure img{transform:scale(1.04);}
.related-card .card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.related-card h3{font-size:17px;line-height:1.5;}
.related-card h3 a{color:var(--ink);}
.related-card h3 a:hover{color:var(--teal-dark);}
.related-card p{font-size:13.5px;line-height:1.75;color:var(--muted);flex:1;}
.card-foot{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12.5px;color:var(--muted);}

/* ============ CTA BANNER ============ */
.cta-banner-wrap{padding:0 0 96px;}
.cta-banner{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);
  padding:56px 48px;background:var(--grad);color:#fff;
  box-shadow:0 24px 60px rgba(14,143,138,.28);
  display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;
}
.cta-banner::before{
  content:"";position:absolute;left:-60px;bottom:-80px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.22),transparent 70%);
}
.cta-banner h2{color:#fff;font-size:clamp(24px,2.6vw,32px);margin-bottom:12px;position:relative;z-index:1;}
.cta-banner p{color:rgba(255,255,255,.88);font-size:15px;line-height:1.8;max-width:520px;position:relative;z-index:1;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;position:relative;z-index:1;}
.cta-panel{
  position:relative;z-index:1;background:rgba(255,255,255,.96);border-radius:var(--radius-md);
  padding:24px;color:var(--ink);box-shadow:0 18px 40px rgba(23,35,38,.18);
}
.cta-panel h3{font-size:16px;margin-bottom:12px;}
.cta-panel ul{display:grid;gap:10px;}
.cta-panel li{display:flex;gap:10px;font-size:13.5px;color:var(--muted);line-height:1.7;}
.cta-panel li i{color:var(--teal);margin-top:4px;font-size:12px;}

/* ============ FOOTER ============ */
.site-footer{position:relative;background:#172326;color:rgba(255,255,255,.78);padding:64px 0 28px;margin-top:0;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad);
}
.footer-top{display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.10);}
.footer-brand .brand{color:#fff;}
.footer-brand .brand:hover{color:#fff;}
.footer-brand .brand-text small{color:rgba(255,255,255,.55);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul li + li{margin-top:10px;}
.footer-col a{color:rgba(255,255,255,.68);font-size:14px;}
.footer-col a:hover{color:var(--orange-soft);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;font-size:13px;color:rgba(255,255,255,.52);
}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:var(--orange-soft);}

/* ============ RESPONSIVE ============ */
@media (max-width:1279px){
  .article-shell{grid-template-columns:minmax(0,1fr) 300px;gap:32px;}
}
@media (max-width:1023px){
  .container{padding-left:24px;padding-right:24px;}
  .header-inner{min-height:72px;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    display:none;position:absolute;top:calc(100% + 12px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:var(--surface);border:1px solid var(--line);border-radius:20px;
    padding:14px;box-shadow:var(--shadow-lg);z-index:90;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{padding:14px 16px;font-size:15px;border-radius:14px;}
  .nav-link.is-active{box-shadow:inset 3px 0 0 var(--teal);}
  .article-shell{grid-template-columns:1fr;gap:36px;padding:36px 0 64px;}
  .side-sticky{position:static;}
  .article-figure img{height:280px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-banner{grid-template-columns:1fr;padding:40px 32px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:639px){
  .container{padding-left:20px;padding-right:20px;}
  body{font-size:15.5px;}
  .brand-text{font-size:15px;}
  .brand-text small{font-size:10.5px;letter-spacing:.04em;}
  .brand-mark{width:38px;height:38px;border-radius:12px;}
  .header-actions .btn{display:none;}
  .article-title{font-size:30px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:23px;margin-top:36px;}
  .article-body h3{font-size:19px;}
  .article-figure img{height:210px;}
  .related-grid{grid-template-columns:1fr;}
  .cta-banner{padding:32px 22px;border-radius:24px;}
  .cta-actions .btn{width:100%;}
  .footer-top{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .crumb{font-size:12.5px;}
  .crumb .crumb-current{max-width:62vw;}
}

/* roulang page: category3 */
:root{
  --brand:#0E8F8A;
  --brand-deep:#0A6665;
  --brand-dark:#084F4E;
  --brand-soft:#EAF7F4;
  --accent:#F07A45;
  --accent-soft:#FFD7C2;
  --gold:#F4C95D;
  --bg:#F7F3EA;
  --surface:#FFFFFF;
  --ink:#172326;
  --muted:#5E6E70;
  --line:rgba(14,143,138,.16);
  --line-strong:rgba(14,143,138,.34);
  --shadow-sm:0 4px 14px rgba(23,35,38,.06);
  --shadow:0 10px 30px rgba(23,35,38,.08);
  --shadow-lg:0 16px 42px rgba(23,35,38,.12);
  --r-xl:32px;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --pill:999px;
  --container:1220px;
  --grad:linear-gradient(120deg,#0E8F8A 0%,#16A79B 48%,#F07A45 100%);
  --grad-deep:linear-gradient(135deg,#0E8F8A 0%,#0A6665 58%,#0B5250 100%);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","HarmonyOS Sans SC","MiSans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:inherit;}
a{color:var(--brand-deep);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:.01em;}
h1{font-size:48px;line-height:1.16;}
h2{font-size:34px;line-height:1.25;font-weight:800;}
h3{font-size:21px;line-height:1.4;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;max-width:700px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 16px;
  border-radius:var(--pill);
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";
  width:7px;height:7px;border-radius:50%;
  background:var(--accent);
}
.eyebrow.on-dark{background:rgba(255,255,255,.14);color:#EAF7F4;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(247,243,234,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(160%) blur(10px);
  transition:box-shadow .22s ease,border-color .22s ease;
}
.site-header.is-stuck{box-shadow:0 8px 26px rgba(23,35,38,.09);border-color:var(--line-strong);}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:80px;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;}
.brand-mark{
  width:44px;height:44px;
  flex:0 0 44px;
  border-radius:15px;
  background:var(--grad);
  display:grid;place-items:center;
  box-shadow:0 8px 20px rgba(14,143,138,.28);
}
.brand-mark svg{width:24px;height:24px;fill:none;stroke:#fff;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{
  display:flex;flex-direction:column;
  font-size:17px;font-weight:800;line-height:1.2;
  color:var(--ink);
}
.brand-text small{
  font-size:11.5px;font-weight:500;
  color:var(--muted);letter-spacing:.03em;margin-top:3px;
}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  display:inline-flex;align-items:center;
  padding:10px 15px;
  border-radius:var(--pill);
  font-size:15px;font-weight:600;
  color:#33484A;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-deep);}
.nav-link.is-active{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(14,143,138,.26);}
.header-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line-strong);
  border-radius:14px;
  background:#fff;
  color:var(--brand-deep);
  font-size:17px;
  cursor:pointer;
  transition:background .18s ease,border-color .18s ease;
}
.nav-toggle:hover{background:var(--brand-soft);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:48px;
  padding:12px 26px;
  border-radius:var(--r-md);
  border:1px solid transparent;
  font-size:15.5px;
  font-weight:700;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  text-align:center;
}
.btn:focus-visible{outline:3px solid rgba(14,143,138,.35);outline-offset:3px;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(14,143,138,.26);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(14,143,138,.34);color:#fff;}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:#fff;border-color:var(--line-strong);color:var(--brand-deep);}
.btn-outline:hover{background:var(--brand-soft);transform:translateY(-2px);box-shadow:var(--shadow-sm);color:var(--brand-deep);}
.btn-accent{background:linear-gradient(120deg,#F07A45 0%,#F4955F 55%,#F4C95D 100%);color:#fff;box-shadow:0 10px 24px rgba(240,122,69,.28);}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(240,122,69,.36);color:#fff;}
.btn-ghost-light{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.5);color:#fff;}
.btn-ghost-light:hover{background:rgba(255,255,255,.24);color:#fff;transform:translateY(-2px);}
.btn-sm{min-height:42px;padding:9px 20px;font-size:14.5px;border-radius:13px;}
.btn-block{width:100%;}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--muted);
  padding:26px 0 18px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand-deep);}
.breadcrumb i{font-size:10px;color:var(--line-strong);}
.breadcrumb .current{color:var(--brand-deep);font-weight:700;}

/* ---------- hero ---------- */
.page-hero{padding-bottom:8px;}
.hero-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-xl);
  background:var(--grad-deep);
  color:#fff;
  box-shadow:0 24px 60px rgba(10,102,101,.24);
  padding:56px;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
}
.hero-card::before{
  content:"";
  position:absolute;
  width:520px;height:520px;
  right:-140px;top:-200px;
  background:radial-gradient(circle,rgba(240,122,69,.5),transparent 62%);
  pointer-events:none;
}
.hero-card::after{
  content:"";
  position:absolute;
  width:420px;height:420px;
  left:-180px;bottom:-220px;
  background:radial-gradient(circle,rgba(244,201,93,.26),transparent 64%);
  pointer-events:none;
}
.hero-copy{position:relative;z-index:2;}
.hero-copy h1{
  color:#fff;
  font-size:46px;
  line-height:1.18;
  margin-bottom:18px;
}
.hero-copy h1 em{font-style:normal;color:var(--gold);}
.hero-lead{
  color:rgba(255,255,255,.86);
  font-size:17px;
  max-width:520px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:var(--pill);
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);
  color:#F1FBFA;
  font-size:13.5px;
  font-weight:600;
}
.badge b{color:var(--gold);font-weight:800;}
.badge.on-light{background:var(--brand-soft);border-color:var(--line);color:var(--brand-deep);}
.badge.on-light b{color:var(--accent);}
.hero-visual{position:relative;z-index:2;}
.collage{position:relative;padding:0 0 34px 0;}
.collage-main{
  border-radius:26px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.22);
  box-shadow:0 22px 48px rgba(6,44,43,.38);
}
.collage-main img{width:100%;height:300px;object-fit:cover;}
.collage-side{
  position:absolute;
  right:-6px;bottom:-6px;
  width:62%;
  border-radius:20px;
  overflow:hidden;
  border:3px solid rgba(255,255,255,.9);
  box-shadow:0 18px 40px rgba(6,44,43,.4);
}
.collage-side img{width:100%;height:130px;object-fit:cover;}
.collage-tag{
  position:absolute;
  left:-10px;top:18px;
  padding:8px 16px;
  border-radius:var(--pill);
  background:#fff;
  color:var(--brand-deep);
  font-size:13px;
  font-weight:800;
  box-shadow:0 10px 24px rgba(6,44,43,.3);
}
.collage-tag i{color:var(--accent);margin-right:6px;}

/* ---------- mosaic rewards ---------- */
.mosaic{
  display:grid;
  grid-template-columns:1.22fr 1fr;
  grid-template-rows:repeat(2,minmax(0,1fr));
  gap:24px;
}
.mosaic-main{
  grid-row:span 2;
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease;
}
.mosaic-main:hover,.mosaic-small:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.mosaic-main img{width:100%;height:280px;object-fit:cover;border-radius:0;}
.mosaic-body{padding:28px 30px 32px;display:flex;flex-direction:column;gap:12px;}
.mosaic-body h3{font-size:23px;}
.mosaic-body p{color:var(--muted);font-size:15.5px;}
.tag{
  align-self:flex-start;
  padding:5px 14px;
  border-radius:var(--pill);
  background:var(--accent-soft);
  color:#9B4520;
  font-size:12.5px;
  font-weight:800;
  letter-spacing:.03em;
}
.tag.brand{background:var(--brand-soft);color:var(--brand-deep);}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-weight:700;font-size:14.5px;color:var(--brand-deep);
  margin-top:4px;
}
.text-link i{transition:transform .2s ease;font-size:12px;}
.text-link:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}
.text-link:hover i{transform:translateX(4px);}
.mosaic-small{
  display:grid;
  grid-template-columns:150px 1fr;
  gap:0;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease;
}
.mosaic-small img{width:100%;height:100%;min-height:170px;object-fit:cover;border-radius:0;}
.mosaic-small .small-body{padding:22px 24px;display:flex;flex-direction:column;gap:8px;justify-content:center;}
.mosaic-small h3{font-size:18px;}
.mosaic-small p{font-size:14px;color:var(--muted);line-height:1.7;}
.mosaic-note{
  margin-top:22px;
  font-size:13.5px;
  color:var(--muted);
  display:flex;align-items:flex-start;gap:8px;
}
.mosaic-note i{color:var(--accent);margin-top:4px;}

/* ---------- track ---------- */
.track-wrap{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  padding:52px 44px 44px;
  box-shadow:var(--shadow);
}
.track{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  --step-w:64%;
}
.track::before{
  content:"";
  position:absolute;
  left:8%;right:8%;top:24px;height:6px;
  border-radius:var(--pill);
  background:var(--brand-soft);
}
.track::after{
  content:"";
  position:absolute;
  left:8%;top:24px;height:6px;width:var(--step-w);
  border-radius:var(--pill);
  background:var(--grad);
  opacity:.85;
}
.track-step{position:relative;text-align:left;}
.track-dot{
  position:relative;
  z-index:2;
  width:50px;height:50px;
  border-radius:50%;
  background:#fff;
  border:3px solid var(--brand);
  color:var(--brand-deep);
  display:grid;place-items:center;
  font-weight:800;font-size:15px;
  margin-bottom:18px;
  box-shadow:0 8px 20px rgba(14,143,138,.18);
}
.track-step:first-child .track-dot{background:var(--grad);border-color:transparent;color:#fff;}
.track-step h3{font-size:18px;margin-bottom:8px;}
.track-step p{font-size:14px;color:var(--muted);line-height:1.75;}

/* ---------- info split ---------- */
.split{
  display:grid;
  grid-template-columns:1.02fr 1fr;
  gap:56px;
  align-items:center;
}
.split-media{border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);}
.split-media img{width:100%;height:420px;object-fit:cover;}
.split-copy h2{margin-bottom:16px;}
.split-copy > p{color:var(--muted);margin-bottom:26px;}
.check-list{display:flex;flex-direction:column;gap:16px;}
.check-item{
  display:flex;gap:14px;
  padding:18px 20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.check-item:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--line-strong);}
.check-ico{
  flex:0 0 38px;width:38px;height:38px;
  border-radius:12px;
  background:var(--brand-soft);
  color:var(--brand-deep);
  display:grid;place-items:center;
  font-size:15px;
}
.check-item h3{font-size:16px;margin-bottom:4px;}
.check-item p{font-size:14px;color:var(--muted);line-height:1.7;}

/* ---------- conditions ---------- */
.conditions{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:40px;
  align-items:start;
}
.steps-list{counter-reset:cond;display:flex;flex-direction:column;gap:18px;}
.steps-list li{
  counter-increment:cond;
  position:relative;
  padding:22px 26px 22px 74px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.steps-list li:hover{transform:translateY(-2px);box-shadow:var(--shadow);}
.steps-list li::before{
  content:counter(cond,decimal-leading-zero);
  position:absolute;
  left:24px;top:24px;
  width:36px;height:36px;
  border-radius:12px;
  background:var(--grad);
  color:#fff;
  font-size:13px;
  font-weight:800;
  display:grid;place-items:center;
  letter-spacing:.02em;
}
.steps-list h3{font-size:17px;margin-bottom:6px;}
.steps-list p{font-size:14.5px;color:var(--muted);line-height:1.75;}
.panel-dark{
  background:var(--ink);
  color:#E9F3F2;
  border-radius:var(--r-xl);
  padding:36px 32px;
  box-shadow:0 22px 48px rgba(23,35,38,.24);
  position:relative;
  overflow:hidden;
}
.panel-dark::before{
  content:"";
  position:absolute;right:-80px;top:-80px;
  width:240px;height:240px;
  background:radial-gradient(circle,rgba(14,143,138,.5),transparent 65%);
}
.panel-dark h3{color:#fff;font-size:20px;margin-bottom:10px;position:relative;}
.panel-dark > p{color:rgba(233,243,242,.7);font-size:14px;margin-bottom:22px;position:relative;}
.dark-list{display:flex;flex-direction:column;gap:12px;position:relative;}
.dark-list li{
  display:flex;align-items:flex-start;gap:12px;
  padding:14px 16px;
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  font-size:14px;
  color:rgba(233,243,242,.9);
  line-height:1.7;
}
.dark-list i{color:var(--gold);margin-top:5px;font-size:12px;}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:48px;align-items:start;}
.faq-side p{color:var(--muted);margin-top:14px;margin-bottom:24px;font-size:15px;}
.faq-side .btn{min-height:46px;}
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 26px 20px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:16.5px;font-weight:700;color:var(--ink);
  min-height:64px;
  border-left:4px solid transparent;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:#FCFAF5;color:var(--brand-deep);}
.faq-item[open] summary{border-left-color:var(--brand);color:var(--brand-deep);background:#FCFDFC;}
.faq-sign{
  position:relative;
  flex:0 0 22px;width:22px;height:22px;
  border-radius:50%;
  background:var(--brand-soft);
}
.faq-sign::before,.faq-sign::after{
  content:"";
  position:absolute;left:50%;top:50%;
  background:var(--brand-deep);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:opacity .2s ease,transform .2s ease;
}
.faq-sign::before{width:11px;height:2px;}
.faq-sign::after{width:2px;height:11px;}
.faq-item[open] .faq-sign::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg) scaleX(.2);}
.faq-answer{padding:0 28px 24px 22px;color:var(--muted);font-size:15px;line-height:1.85;border-left:4px solid var(--brand);}

/* ---------- cta ---------- */
.cta-banner{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-xl);
  background:var(--grad-deep);
  color:#fff;
  padding:56px;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
  box-shadow:0 26px 62px rgba(10,102,101,.24);
}
.cta-banner::before{
  content:"";
  position:absolute;right:-120px;bottom:-180px;
  width:460px;height:460px;
  background:radial-gradient(circle,rgba(240,122,69,.55),transparent 62%);
}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{color:#fff;margin-bottom:14px;}
.cta-copy p{color:rgba(255,255,255,.84);margin-bottom:26px;max-width:460px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-form{
  position:relative;z-index:2;
  background:#fff;
  border-radius:var(--r-lg);
  padding:30px;
  box-shadow:0 24px 50px rgba(6,44,43,.28);
  color:var(--ink);
}
.cta-form h3{font-size:18px;margin-bottom:6px;}
.cta-form .form-sub{font-size:13.5px;color:var(--muted);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:700;color:#33484A;margin-bottom:8px;}
.field input{
  width:100%;
  height:48px;
  padding:0 16px;
  border-radius:var(--r-md);
  border:1px solid var(--line-strong);
  background:#FBF9F4;
  font-size:15px;
  color:var(--ink);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field input::placeholder{color:#9AA8A9;}
.field input:focus{
  outline:none;
  border-color:var(--brand);
  background:#fff;
  box-shadow:0 0 0 3px rgba(14,143,138,.16);
}
.form-note{font-size:12.5px;color:var(--muted);margin-top:14px;line-height:1.7;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink);
  color:#C9D6D6;
  margin-top:96px;
  padding-top:2px;
  background-image:linear-gradient(90deg,var(--brand),var(--accent),var(--gold));
  background-repeat:no-repeat;
  background-size:100% 2px;
  background-position:top left;
}
.footer-top{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding:68px 0 48px;
}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-text small{color:rgba(201,214,214,.62);}
.footer-brand p{
  margin-top:18px;
  font-size:14px;
  line-height:1.85;
  color:rgba(201,214,214,.72);
  max-width:340px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:800;
  margin-bottom:18px;
  letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{
  color:rgba(201,214,214,.74);
  font-size:14px;
  transition:color .18s ease,padding-left .18s ease;
}
.footer-col a:hover{color:var(--gold);padding-left:5px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 30px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(201,214,214,.6);
}
.footer-bottom a{color:rgba(201,214,214,.78);}
.footer-bottom a:hover{color:var(--gold);}

/* ---------- responsive ---------- */
@media screen and (max-width:1279px){
  .container{padding:0 28px;}
  h1{font-size:42px;}
  .hero-card{padding:46px;gap:36px;}
  .hero-copy h1{font-size:40px;}
  .split{gap:40px;}
}
@media screen and (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:76px 0;}
  .section-tight{padding:60px 0;}
  .main-nav{
    position:absolute;
    top:calc(100% + 10px);
    left:24px;right:24px;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    background:#FFFDF9;
    border:1px solid var(--line);
    border-radius:20px;
    padding:14px;
    box-shadow:var(--shadow-lg);
    display:none;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{padding:12px 16px;font-size:15.5px;border-radius:14px;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-inner{min-height:70px;position:relative;}
  .header-actions .btn-sm{display:none;}
  .hero-card{grid-template-columns:1fr;padding:40px;}
  .hero-copy h1{font-size:36px;}
  .hero-lead{max-width:100%;}
  .collage-main img{height:260px;}
  .mosaic{grid-template-columns:1fr;grid-template-rows:none;}
  .mosaic-main{grid-row:auto;}
  .mosaic-main img{height:240px;}
  .track-wrap{padding:40px 28px 34px;}
  .track{grid-template-columns:repeat(2,1fr);gap:32px;--step-w:44%;}
  .track::before,.track::after{display:none;}
  .split{grid-template-columns:1fr;}
  .split-media img{height:300px;}
  .conditions{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .cta-banner{grid-template-columns:1fr;padding:40px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 40px;}
}
@media screen and (max-width:639px){
  body{font-size:15.5px;}
  .container{padding:0 20px;}
  .section{padding:60px 0;}
  .section-tight{padding:48px 0;}
  .brand-text{font-size:15.5px;}
  .brand-text small{font-size:10.5px;}
  .brand-mark{width:40px;height:40px;flex:0 0 40px;border-radius:13px;}
  h1{font-size:32px;}
  h2{font-size:26px;}
  h3{font-size:19px;}
  .breadcrumb{padding:18px 0 14px;font-size:12.5px;}
  .hero-card{padding:28px 22px;border-radius:26px;}
  .hero-copy h1{font-size:29px;margin-bottom:14px;}
  .hero-lead{font-size:15.5px;margin-bottom:22px;}
  .hero-actions{flex-direction:column;align-items:stretch;gap:10px;}
  .hero-actions .btn{width:100%;}
  .hero-badges{gap:8px;}
  .badge{padding:7px 13px;font-size:12.5px;}
  .collage-main img{height:200px;}
  .collage-side{width:66%;}
  .collage-side img{height:96px;}
  .collage-tag{left:0;top:12px;font-size:12px;padding:7px 13px;}
  .mosaic{gap:18px;}
  .mosaic-main img{height:200px;}
  .mosaic-body{padding:22px 22px 26px;}
  .mosaic-body h3{font-size:20px;}
  .mosaic-small{grid-template-columns:1fr;}
  .mosaic-small img{height:170px;min-height:0;}
  .mosaic-small .small-body{padding:20px 22px 24px;}
  .track-wrap{padding:28px 22px;border-radius:24px;}
  .track{grid-template-columns:1fr;gap:26px;}
  .track-dot{width:44px;height:44px;margin-bottom:12px;}
  .split-media img{height:230px;}
  .check-item{padding:16px;}
  .steps-list li{padding:20px 20px 20px 66px;}
  .steps-list li::before{left:18px;top:20px;width:32px;height:32px;font-size:12px;}
  .panel-dark{padding:28px 22px;border-radius:24px;}
  .faq-item summary{font-size:16px;padding:18px 18px 18px 18px;min-height:58px;}
  .faq-answer{padding:0 20px 20px 18px;font-size:14.5px;}
  .cta-banner{padding:28px 22px;border-radius:26px;gap:28px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .cta-form{padding:22px;}
  .footer-top{grid-template-columns:1fr;gap:28px;padding:44px 0 32px;}
  .footer-brand p{max-width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;font-size:12.5px;}
  .site-footer{margin-top:60px;}
}

/* roulang page: category2 */
:root {
      --teal: #0E8F8A;
      --teal-dark: #0A6665;
      --teal-soft: #EAF7F4;
      --orange: #F07A45;
      --orange-soft: #FFD7C2;
      --yellow: #F4C95D;
      --sand: #F7F3EA;
      --ink: #172326;
      --ink-deep: #11181B;
      --muted: #5E6E70;
      --white: #FFFFFF;
      --border: rgba(14, 143, 138, 0.16);
      --border-soft: rgba(23, 35, 38, 0.10);
      --shadow-sm: 0 10px 30px rgba(23, 35, 38, 0.08);
      --shadow-md: 0 16px 42px rgba(23, 35, 38, 0.12);
      --radius-lg: 32px;
      --radius-md: 24px;
      --radius-sm: 16px;
      --radius-pill: 999px;
      --container: 1240px;
      --space-section: 96px;
      --font-main: "Noto Sans SC", "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", sans-serif;
      --font-num: "Barlow", "Noto Sans SC", sans-serif;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      background: var(--sand);
      color: var(--ink);
      font-family: var(--font-main);
      font-size: 16px;
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

    img {
      max-width: 100%;
      display: block;
    }

    a {
      color: var(--teal-dark);
      text-decoration: none;
      transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    }

    a:hover {
      color: var(--orange);
    }

    button,
    input,
    textarea,
    select {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

    h1,
    h2,
    h3,
    h4,
    h5,
    h6,
    p,
    ul,
    ol,
    figure {
      margin-top: 0;
    }

    ul,
    ol {
      margin-bottom: 0;
      padding-left: 0;
      list-style: none;
    }

    h1,
    h2,
    h3,
    h4 {
      color: var(--ink);
      font-weight: 800;
      letter-spacing: 0.01em;
    }

    h1 {
      font-size: clamp(38px, 5vw, 56px);
      line-height: 1.12;
      margin-bottom: 20px;
    }

    h2 {
      font-size: clamp(28px, 3.4vw, 38px);
      line-height: 1.2;
      margin-bottom: 16px;
    }

    h3 {
      font-size: clamp(20px, 2.2vw, 24px);
      line-height: 1.35;
      margin-bottom: 10px;
    }

    p {
      margin-bottom: 16px;
    }

    ::selection {
      background: var(--teal);
      color: var(--white);
    }

    :focus-visible {
      outline: 3px solid rgba(14, 143, 138, 0.30);
      outline-offset: 3px;
    }

    .container {
      width: 100%;
      max-width: var(--container);
      margin-left: auto;
      margin-right: auto;
      padding-left: 32px;
      padding-right: 32px;
    }

    .section {
      padding-top: var(--space-section);
      padding-bottom: var(--space-section);
    }

    .section-tight {
      padding-top: 68px;
      padding-bottom: 68px;
    }

    .section-dark {
      background: var(--ink-deep);
      color: rgba(255, 255, 255, 0.82);
    }

    .section-dark h2,
    .section-dark h3,
    .section-dark h4 {
      color: var(--white);
    }

    .section-head {
      max-width: 820px;
      margin-bottom: 38px;
    }

    .section-head.center {
      margin-left: auto;
      margin-right: auto;
      text-align: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 14px;
      color: var(--teal-dark);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.04em;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--orange);
      box-shadow: 0 0 0 4px rgba(240, 122, 69, 0.13);
    }

    .section-dark .eyebrow {
      color: var(--yellow);
    }

    .lead {
      color: var(--muted);
      font-size: 18px;
      line-height: 1.85;
      max-width: 780px;
    }

    .section-dark .lead {
      color: rgba(255, 255, 255, 0.72);
    }

    .text-muted {
      color: var(--muted);
    }

    .divider-line {
      width: 100%;
      height: 1px;
      background: var(--border-soft);
      margin: 28px 0;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(247, 243, 234, 0.94);
      border-bottom: 1px solid transparent;
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      transition: box-shadow 0.24s ease, border-color 0.24s ease, background-color 0.24s ease;
    }

    .site-header.is-scrolled {
      background: rgba(247, 243, 234, 0.98);
      border-bottom-color: rgba(23, 35, 38, 0.08);
      box-shadow: 0 12px 30px rgba(23, 35, 38, 0.08);
    }

    .header-inner {
      min-height: 82px;
      display: flex;
      align-items: center;
      gap: 24px;
      position: relative;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      color: var(--ink);
      flex-shrink: 0;
    }

    .brand:hover {
      color: var(--teal-dark);
    }

    .brand-mark {
      width: 44px;
      height: 44px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 15px;
      background: linear-gradient(135deg, var(--teal), var(--teal-dark) 58%, var(--orange));
      box-shadow: 0 10px 24px rgba(14, 143, 138, 0.22);
      flex-shrink: 0;
    }

    .brand-mark svg {
      width: 26px;
      height: 26px;
      fill: none;
      stroke: var(--white);
      stroke-width: 1.8;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      font-size: 18px;
      font-weight: 800;
      line-height: 1.25;
      white-space: nowrap;
    }

    .brand-text small {
      margin-top: 4px;
      color: var(--muted);
      font-size: 11px;
      font-weight: 500;
      letter-spacing: 0.03em;
    }

    .main-nav {
      margin-left: auto;
      display: flex;
      align-items: center;
      gap: 4px;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 0 14px;
      border-radius: var(--radius-pill);
      color: var(--ink);
      font-size: 14px;
      font-weight: 700;
      white-space: nowrap;
    }

    .nav-link:hover {
      color: var(--teal-dark);
      background: var(--teal-soft);
    }

    .nav-link.is-active {
      color: var(--white);
      background: linear-gradient(130deg, var(--teal), var(--teal-dark));
      box-shadow: 0 8px 18px rgba(14, 143, 138, 0.20);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      min-height: 48px;
      padding: 0 24px;
      border: 1px solid transparent;
      border-radius: 15px;
      font-size: 15px;
      font-weight: 800;
      line-height: 1.2;
      text-align: center;
      text-decoration: none;
      white-space: nowrap;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
    }

    .btn-primary {
      color: var(--white);
      background: linear-gradient(120deg, var(--teal), var(--teal-dark));
      box-shadow: 0 12px 24px rgba(14, 143, 138, 0.22);
    }

    .btn-primary:hover {
      color: var(--white);
      transform: translateY(-2px);
      box-shadow: 0 16px 34px rgba(14, 143, 138, 0.28);
    }

    .btn-primary:active {
      transform: translateY(0);
    }

    .btn-secondary {
      color: var(--teal-dark);
      background: var(--white);
      border-color: rgba(14, 143, 138, 0.32);
    }

    .btn-secondary:hover {
      color: var(--teal-dark);
      background: var(--teal-soft);
      border-color: var(--teal);
      transform: translateY(-2px);
    }

    .btn-orange {
      color: var(--white);
      background: linear-gradient(120deg, var(--orange), #D95B2B);
      box-shadow: 0 12px 24px rgba(240, 122, 69, 0.24);
    }

    .btn-orange:hover {
      color: var(--white);
      transform: translateY(-2px);
      box-shadow: 0 16px 34px rgba(240, 122, 69, 0.30);
    }

    .btn-ghost {
      color: var(--white);
      background: rgba(255, 255, 255, 0.06);
      border-color: rgba(255, 255, 255, 0.28);
    }

    .btn-ghost:hover {
      color: var(--white);
      background: rgba(255, 255, 255, 0.13);
      border-color: rgba(255, 255, 255, 0.48);
      transform: translateY(-2px);
    }

    .btn-sm {
      min-height: 42px;
      padding: 0 18px;
      font-size: 14px;
      border-radius: 13px;
    }

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      align-items: center;
      justify-content: center;
      color: var(--teal-dark);
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: 14px;
      font-size: 18px;
    }

    .nav-toggle:hover {
      background: var(--teal-soft);
    }

    .hero {
      position: relative;
      overflow: hidden;
      padding: 48px 0 76px;
      color: var(--white);
      background: var(--ink-deep);
      isolation: isolate;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: linear-gradient(90deg, rgba(17, 24, 27, 0.98), rgba(17, 24, 27, 0.76) 55%, rgba(17, 24, 27, 0.52)), url("/assets/images/backpic/back-2.webp");
      background-size: cover;
      background-position: center;
      opacity: 0.92;
      z-index: -2;
    }

    .hero::after {
      content: "";
      position: absolute;
      width: 560px;
      height: 560px;
      right: -180px;
      top: -180px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(14, 143, 138, 0.34), transparent 68%);
      z-index: -1;
      pointer-events: none;
    }

    .breadcrumbs {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      margin-bottom: 28px;
      color: rgba(255, 255, 255, 0.62);
      font-size: 13px;
    }

    .breadcrumbs a {
      color: rgba(255, 255, 255, 0.78);
    }

    .breadcrumbs a:hover {
      color: var(--yellow);
    }

    .breadcrumbs span {
      color: rgba(255, 255, 255, 0.42);
    }

    .hero h1 {
      color: var(--white);
      max-width: 760px;
    }

    .hero h1 .accent {
      color: var(--yellow);
    }

    .hero-sub {
      max-width: 620px;
      margin-bottom: 28px;
      color: rgba(255, 255, 255, 0.76);
      font-size: 18px;
      line-height: 1.8;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 34px;
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 12px;
      max-width: 720px;
    }

    .hero-metric {
      padding: 14px 14px 13px;
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 18px;
      background: rgba(255, 255, 255, 0.06);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
    }

    .hero-metric strong {
      display: block;
      margin-bottom: 3px;
      color: var(--white);
      font-family: var(--font-num);
      font-size: 23px;
      font-weight: 800;
      line-height: 1.2;
    }

    .hero-metric span {
      display: block;
      color: rgba(255, 255, 255, 0.62);
      font-size: 12px;
      line-height: 1.4;
    }

    .hero-visual {
      position: relative;
      min-height: 560px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .device-stage {
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
      width: 100%;
      min-height: 540px;
      border-radius: 36px;
      background:
        radial-gradient(circle at 22% 18%, rgba(244, 201, 93, 0.18), transparent 28%),
        radial-gradient(circle at 78% 76%, rgba(14, 143, 138, 0.34), transparent 36%),
        linear-gradient(150deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.02));
      border: 1px solid rgba(255, 255, 255, 0.14);
      overflow: hidden;
    }

    .device-stage::before {
      content: "";
      position: absolute;
      inset: 20px;
      border: 1px dashed rgba(255, 255, 255, 0.12);
      border-radius: 28px;
      pointer-events: none;
    }

    .phone-frame {
      position: relative;
      width: 306px;
      max-width: 76%;
      padding: 10px;
      border: 1px solid rgba(255, 255, 255, 0.28);
      border-radius: 44px;
      background: #0A1012;
      box-shadow: 0 32px 70px rgba(0, 0, 0, 0.42);
      transform: rotate(-2deg);
      transition: transform 0.3s ease;
    }

    .phone-frame:hover {
      transform: rotate(0deg) translateY(-4px);
    }

    .phone-notch {
      position: absolute;
      z-index: 2;
      top: 20px;
      left: 50%;
      width: 88px;
      height: 22px;
      border-radius: 999px;
      background: #0A1012;
      transform: translateX(-50%);
    }

    .phone-screen {
      position: relative;
      overflow: hidden;
      border-radius: 35px;
      background: #0A1012;
      aspect-ratio: 9 / 19;
    }

    .phone-screen img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .phone-screen::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(10, 16, 18, 0.04), rgba(10, 16, 18, 0.28));
      pointer-events: none;
    }

    .float-card {
      position: absolute;
      left: 8px;
      bottom: 28px;
      z-index: 3;
      width: 236px;
      padding: 16px;
      border-radius: 20px;
      background: var(--white);
      color: var(--ink);
      box-shadow: 0 20px 46px rgba(0, 0, 0, 0.26);
      transform: rotate(-1deg);
    }

    .float-card-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 10px;
    }

    .float-card-top img {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      object-fit: cover;
    }

    .float-tag {
      display: inline-flex;
      align-items: center;
      min-height: 26px;
      padding: 0 10px;
      border-radius: 999px;
      background: var(--teal-soft);
      color: var(--teal-dark);
      font-size: 11px;
      font-weight: 700;
      white-space: nowrap;
    }

    .float-card h3 {
      margin-bottom: 6px;
      font-size: 16px;
      line-height: 1.4;
    }

    .float-card p {
      margin-bottom: 0;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.6;
    }

    .stats-band {
      position: relative;
      z-index: 2;
      margin-top: -42px;
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 20px;
    }

    .stat-card {
      padding: 24px;
      border: 1px solid var(--border);
      border-radius: 24px;
      background: var(--white);
      box-shadow: var(--shadow-sm);
      transition: transform 0.24s ease, box-shadow 0.24s ease;
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .stat-icon {
      width: 42px;
      height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
      border-radius: 14px;
      color: var(--teal-dark);
      background: var(--teal-soft);
      font-size: 17px;
    }

    .stat-number {
      display: block;
      margin-bottom: 4px;
      color: var(--ink);
      font-family: var(--font-num);
      font-size: 34px;
      font-weight: 800;
      line-height: 1.1;
    }

    .stat-label {
      display: block;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.55;
    }

    .timeline-wrap {
      display: grid;
      grid-template-columns: 0.38fr 0.62fr;
      gap: 52px;
      align-items: start;
    }

    .timeline-intro {
      position: sticky;
      top: 112px;
    }

    .timeline-intro .lead {
      margin-bottom: 24px;
    }

    .note-panel {
      padding: 20px 22px;
      border: 1px solid var(--border);
      border-radius: 20px;
      background: var(--white);
      box-shadow: var(--shadow-sm);
    }

    .note-panel strong {
      display: block;
      margin-bottom: 6px;
      color: var(--teal-dark);
      font-size: 14px;
    }

    .note-panel p {
      margin-bottom: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
    }

    .timeline-list {
      position: relative;
      display: grid;
      gap: 20px;
    }

    .timeline-list::before {
      content: "";
      position: absolute;
      left: 20px;
      top: 20px;
      bottom: 20px;
      width: 2px;
      border-radius: 2px;
      background: linear-gradient(180deg, var(--teal), var(--orange));
      opacity: 0.26;
    }

    .timeline-item {
      position: relative;
      padding-left: 60px;
    }

    .step-node {
      position: absolute;
      left: 0;
      top: 18px;
      z-index: 1;
      width: 42px;
      height: 42px;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 4px solid var(--sand);
      border-radius: 50%;
      background: linear-gradient(135deg, var(--teal), var(--teal-dark));
      color: var(--white);
      font-family: var(--font-num);
      font-size: 15px;
      font-weight: 800;
      box-shadow: 0 8px 18px rgba(14, 143, 138, 0.20);
    }

    .step-card {
      padding: 26px 28px;
      border: 1px solid var(--border);
      border-radius: 24px;
      background: var(--white);
      box-shadow: var(--shadow-sm);
      transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
    }

    .step-card:hover {
      transform: translateY(-4px);
      border-color: rgba(14, 143, 138, 0.28);
      box-shadow: var(--shadow-md);
    }

    .step-meta {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      margin-bottom: 12px;
    }

    .step-chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 28px;
      padding: 0 10px;
      border-radius: 999px;
      background: var(--teal-soft);
      color: var(--teal-dark);
      font-size: 12px;
      font-weight: 700;
    }

    .step-chip.orange {
      background: rgba(240, 122, 69, 0.12);
      color: #B64C22;
    }

    .step-card h3 {
      margin-bottom: 8px;
    }

    .step-card p {
      margin-bottom: 16px;
      color: var(--muted);
      line-height: 1.8;
    }

    .step-note {
      padding: 12px 16px;
      border-left: 3px solid var(--orange);
      border-radius: 0 14px 14px 0;
      background: rgba(247, 243, 234, 0.82);
      color: #445456;
      font-size: 14px;
      line-height: 1.7;
    }

    .adapt-grid {
      display: grid;
      grid-template-columns: 1fr 0.92fr;
      gap: 48px;
      align-items: start;
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 26px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 36px;
      padding: 0 14px;
      border: 1px solid rgba(255, 255, 255, 0.14);
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.06);
      color: rgba(255, 255, 255, 0.82);
      font-size: 13px;
      font-weight: 600;
    }

    .tag.accent {
      border-color: rgba(244, 201, 93, 0.32);
      background: rgba(244, 201, 93, 0.12);
      color: var(--yellow);
    }

    .spec-card {
      padding: 30px;
      border: 1px solid rgba(255, 255, 255, 0.13);
      border-radius: 28px;
      background: rgba(255, 255, 255, 0.055);
      box-shadow: 0 22px 54px rgba(0, 0, 0, 0.18);
    }

    .spec-card h3 {
      margin-bottom: 8px;
    }

    .spec-card > p {
      margin-bottom: 18px;
      color: rgba(255, 255, 255, 0.62);
      font-size: 14px;
    }

    .spec-row {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 18px;
      padding: 15px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.10);
      font-size: 14px;
    }

    .spec-row span {
      color: rgba(255, 255, 255, 0.58);
    }

    .spec-row strong {
      color: var(--white);
      text-align: right;
      font-weight: 700;
    }

    .meter-list {
      display: grid;
      gap: 16px;
      margin-top: 24px;
    }

    .meter-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 8px;
      color: rgba(255, 255, 255, 0.82);
      font-size: 13px;
    }

    .meter-head strong {
      color: var(--yellow);
      font-weight: 700;
    }

    .meter-track {
      height: 8px;
      overflow: hidden;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.12);
    }

    .meter-fill {
      height: 100%;
      width: var(--w, 80%);
      border-radius: inherit;
      background: linear-gradient(90deg, var(--teal), var(--yellow));
    }

    .prep-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 24px;
      align-items: stretch;
    }

    .prep-main {
      overflow: hidden;
      border: 1px solid var(--border);
      border-radius: 28px;
      background: var(--white);
      box-shadow: var(--shadow-sm);
    }

    .prep-image {
      position: relative;
      min-height: 280px;
      background: var(--ink-deep);
    }

    .prep-image img {
      width: 100%;
      height: 100%;
      min-height: 280px;
      object-fit: cover;
      opacity: 0.88;
    }

    .prep-image::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 30%, rgba(17, 24, 27, 0.72));
    }

    .prep-image-tag {
      position: absolute;
      left: 24px;
      bottom: 22px;
      z-index: 1;
      display: inline-flex;
      align-items: center;
      min-height: 30px;
      padding: 0 12px;
      border-radius: 999px;
      background: var(--white);
      color: var(--teal-dark);
      font-size: 12px;
      font-weight: 700;
    }

    .prep-main-body {
      padding: 28px;
    }

    .prep-main-body p {
      margin-bottom: 16px;
      color: var(--muted);
    }

    .check-list {
      display: grid;
      gap: 10px;
    }

    .check-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: #415355;
      font-size: 14px;
      line-height: 1.7;
    }

    .check-list i {
      margin-top: 5px;
      color: var(--teal);
      font-size: 13px;
    }

    .prep-side {
      display: grid;
      gap: 24px;
      grid-template-rows: 1fr 1fr;
    }

    .mini-card {
      position: relative;
      overflow: hidden;
      padding: 26px;
      border: 1px solid var(--border);
      border-radius: 24px;
      background: var(--white);
      box-shadow: var(--shadow-sm);
      transition: transform 0.24s ease, box-shadow 0.24s ease;
    }

    .mini-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .mini-card .mini-icon {
      width: 42px;
      height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      border-radius: 14px;
      color: var(--teal-dark);
      background: var(--teal-soft);
      font-size: 17px;
    }

    .mini-card.orange .mini-icon {
      color: #B64C22;
      background: rgba(240, 122, 69, 0.12);
    }

    .mini-card h3 {
      font-size: 20px;
      margin-bottom: 8px;
    }

    .mini-card p {
      margin-bottom: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: 0.38fr 0.62fr;
      gap: 52px;
      align-items: start;
    }

    .faq-intro {
      position: sticky;
      top: 112px;
    }

    .faq-intro .lead {
      margin-bottom: 22px;
    }

    .inline-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--teal-dark);
      font-weight: 800;
    }

    .inline-link:hover {
      color: var(--orange);
      gap: 11px;
    }

    .faq-list {
      display: grid;
      gap: 12px;
    }

    .faq-item {
      overflow: hidden;
      border: 1px solid var(--border);
      border-radius: 20px;
      background: var(--white);
      box-shadow: 0 8px 22px rgba(23, 35, 38, 0.05);
      transition: border-color 0.22s ease, box-shadow 0.22s ease;
    }

    .faq-item.is-open {
      border-color: rgba(14, 143, 138, 0.35);
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      position: relative;
      width: 100%;
      min-height: 64px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 18px 22px 18px 24px;
      border: 0;
      background: transparent;
      color: var(--ink);
      font-size: 17px;
      font-weight: 800;
      line-height: 1.5;
      text-align: left;
    }

    .faq-question:hover {
      color: var(--teal-dark);
      background: rgba(234, 247, 244, 0.45);
    }

    .faq-item.is-open .faq-question {
      color: var(--teal-dark);
    }

    .faq-item.is-open .faq-question::before {
      content: "";
      position: absolute;
      left: 0;
      top: 16px;
      bottom: 16px;
      width: 4px;
      border-radius: 0 4px 4px 0;
      background: linear-gradient(180deg, var(--teal), var(--orange));
    }

    .faq-icon {
      width: 30px;
      height: 30px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      border-radius: 50%;
      background: var(--teal-soft);
      color: var(--teal-dark);
      font-size: 18px;
      line-height: 1;
      transition: transform 0.22s ease, background-color 0.22s ease, color 0.22s ease;
    }

    .faq-item.is-open .faq-icon {
      color: var(--white);
      background: var(--teal);
      transform: rotate(45deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.24s ease;
    }

    .faq-item.is-open .faq-answer {
      max-height: 420px;
    }

    .faq-answer-inner {
      padding: 0 24px 22px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.85;
    }

    .cta-section {
      padding: 84px 0;
      background: linear-gradient(180deg, var(--sand), #F2EDE2);
    }

    .cta-banner {
      position: relative;
      overflow: hidden;
      display: grid;
      grid-template-columns: 1.35fr 0.65fr;
      gap: 36px;
      align-items: center;
      padding: 48px;
      border-radius: 32px;
      background:
        radial-gradient(circle at 90% 12%, rgba(244, 201, 93, 0.24), transparent 28%),
        linear-gradient(120deg, var(--teal), var(--teal-dark) 54%, var(--orange));
      box-shadow: 0 24px 60px rgba(10, 102, 101, 0.22);
    }

    .cta-banner::before {
      content: "";
      position: absolute;
      width: 280px;
      height: 280px;
      right: -90px;
      bottom: -150px;
      border: 1px solid rgba(255, 255, 255, 0.24);
      border-radius: 50%;
      pointer-events: none;
    }

    .cta-banner h2 {
      color: var(--white);
      margin-bottom: 12px;
    }

    .cta-banner p {
      max-width: 640px;
      margin-bottom: 0;
      color: rgba(255, 255, 255, 0.78);
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: flex-end;
      position: relative;
      z-index: 1;
    }

    .cta-actions .btn {
      min-width: 148px;
    }

    .site-footer {
      position: relative;
      padding-top: 72px;
      background: var(--ink-deep);
      color: rgba(255, 255, 255, 0.66);
    }

    .site-footer::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: linear-gradient(90deg, var(--teal), var(--yellow), var(--orange));
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.7fr 1fr 1fr 1fr;
      gap: 36px;
      padding-bottom: 48px;
    }

    .footer-brand .brand {
      color: var(--white);
      margin-bottom: 18px;
    }

    .footer-brand .brand:hover {
      color: var(--yellow);
    }

    .footer-brand .brand-text small {
      color: rgba(255, 255, 255, 0.48);
    }

    .footer-brand p {
      max-width: 360px;
      margin-bottom: 0;
      color: rgba(255, 255, 255, 0.58);
      font-size: 14px;
      line-height: 1.8;
    }

    .footer-col h4 {
      margin-bottom: 16px;
      color: var(--white);
      font-size: 15px;
      font-weight: 800;
    }

    .footer-col li {
      margin-bottom: 6px;
    }

    .footer-col a {
      display: inline-block;
      padding: 4px 0;
      color: rgba(255, 255, 255, 0.64);
      font-size: 14px;
    }

    .footer-col a:hover {
      color: var(--yellow);
      transform: translateX(2px);
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      padding: 22px 0 26px;
      border-top: 1px solid rgba(255, 255, 255, 0.10);
      color: rgba(255, 255, 255, 0.48);
      font-size: 13px;
      line-height: 1.7;
    }

    .footer-bottom a {
      color: rgba(255, 255, 255, 0.70);
    }

    .footer-bottom a:hover {
      color: var(--yellow);
    }

    @media (max-width: 1199px) {
      .nav-link {
        padding-left: 10px;
        padding-right: 10px;
        font-size: 13px;
      }

      .header-inner {
        gap: 14px;
      }

      .brand-text {
        font-size: 16px;
      }

      .hero-metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .stats-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (max-width: 1023px) {
      .container {
        padding-left: 24px;
        padding-right: 24px;
      }

      .header-inner {
        min-height: 72px;
      }

      .main-nav {
        position: absolute;
        top: calc(100% + 10px);
        left: 24px;
        right: 24px;
        z-index: 120;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        padding: 14px;
        border: 1px solid var(--border);
        border-radius: 20px;
        background: #FFFDF8;
        box-shadow: 0 24px 60px rgba(23, 35, 38, 0.18);
      }

      .main-nav.is-open {
        display: flex;
      }

      .nav-link {
        justify-content: flex-start;
        width: 100%;
        min-height: 46px;
        padding: 0 16px;
        font-size: 15px;
      }

      .nav-toggle {
        display: inline-flex;
      }

      .header-actions .btn {
        display: none;
      }

      .hero {
        padding-top: 36px;
      }

      .hero-visual {
        min-height: auto;
        margin-top: 34px;
      }

      .device-stage {
        min-height: 520px;
      }

      .timeline-wrap,
      .faq-grid,
      .adapt-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .timeline-intro,
      .faq-intro {
        position: static;
      }

      .prep-grid {
        grid-template-columns: 1fr;
      }

      .prep-side {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto;
      }

      .cta-banner {
        grid-template-columns: 1fr;
      }

      .cta-actions {
        justify-content: flex-start;
      }

      .footer-top {
        grid-template-columns: 1.4fr 1fr 1fr;
      }

      .footer-brand {
        grid-column: 1 / -1;
      }
    }

    @media (max-width: 767px) {
      :root {
        --space-section: 68px;
      }

      .container {
        padding-left: 20px;
        padding-right: 20px;
      }

      .section-tight {
        padding-top: 52px;
        padding-bottom: 52px;
      }

      .brand-mark {
        width: 40px;
        height: 40px;
        border-radius: 13px;
      }

      .brand-mark svg {
        width: 23px;
        height: 23px;
      }

      .brand-text {
        font-size: 15px;
      }

      .brand-text small {
        font-size: 10px;
      }

      .hero h1 {
        font-size: 36px;
      }

      .hero-sub {
        font-size: 16px;
      }

      .hero-actions {
        flex-direction: column;
        align-items: stretch;
      }

      .hero-actions .btn {
        width: 100%;
      }

      .hero-metrics {
        grid-template-columns: 1fr 1fr;
      }

      .stats-band {
        margin-top: -28px;
      }

      .stat-card {
        padding: 20px;
      }

      .stat-number {
        font-size: 29px;
      }

      .timeline-item {
        padding-left: 52px;
      }

      .step-node {
        width: 38px;
        height: 38px;
        font-size: 14px;
      }

      .step-card {
        padding: 22px;
      }

      .spec-card {
        padding: 24px;
      }

      .prep-side {
        grid-template-columns: 1fr;
      }

      .cta-banner {
        padding: 32px 24px;
        border-radius: 26px;
      }

      .cta-actions {
        flex-direction: column;
        align-items: stretch;
      }

      .cta-actions .btn {
        width: 100%;
      }

      .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
      }

      .footer-brand {
        grid-column: 1 / -1;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
      }

      .faq-question {
        min-height: 58px;
        font-size: 16px;
        padding: 16px 18px 16px 20px;
      }

      .faq-answer-inner {
        padding: 0 20px 20px;
      }

      .float-card {
        left: 50%;
        bottom: 14px;
        width: 220px;
        transform: translateX(-50%) rotate(-1deg);
      }

      .device-stage {
        min-height: 500px;
        padding-bottom: 14px;
      }

      .phone-frame {
        width: 262px;
        transform: rotate(-1deg);
      }
    }

    @media (max-width: 520px) {
      .header-inner {
        gap: 10px;
      }

      .brand-text {
        max-width: 180px;
        white-space: normal;
        font-size: 14px;
        line-height: 1.25;
      }

      .brand-text small {
        display: none;
      }

      .hero-metrics {
        grid-template-columns: 1fr;
      }

      .stats-grid {
        grid-template-columns: 1fr;
      }

      .hero h1 {
        font-size: 32px;
      }

      .section-head {
        margin-bottom: 28px;
      }

      .lead {
        font-size: 16px;
      }

      .device-stage {
        min-height: 470px;
      }

      .phone-frame {
        width: 238px;
      }

      .float-card {
        width: 205px;
      }

      .float-card-top img {
        width: 44px;
        height: 44px;
      }

      .footer-top {
        grid-template-columns: 1fr;
      }
    }

/* roulang page: category4 */
:root{
  --brand:#0E8F8A;
  --brand-dark:#0A6665;
  --brand-soft:#EAF7F4;
  --accent:#F07A45;
  --accent-soft:#FFD7C2;
  --gold:#F4C95D;
  --bg:#F7F3EA;
  --bg-soft:#FFFDF8;
  --surface:#FFFFFF;
  --ink:#172326;
  --ink-soft:#2C3B3E;
  --muted:#5E6E70;
  --line:rgba(14,143,138,.16);
  --line-strong:rgba(14,143,138,.32);
  --shadow:0 10px 30px rgba(23,35,38,.08);
  --shadow-hover:0 16px 42px rgba(23,35,38,.12);
  --radius-lg:30px;
  --radius-md:22px;
  --radius-sm:16px;
  --radius-pill:999px;
  --grad:linear-gradient(118deg,#0E8F8A 0%,#2FB3A6 46%,#F07A45 100%);
  --grad-soft:linear-gradient(135deg,rgba(14,143,138,.14),rgba(240,122,69,.16));
  --font-cn:"Noto Sans SC","HarmonyOS Sans SC","MiSans","PingFang SC","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.22,.7,.28,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote{margin:0}
h1,h2,h3,h4{font-weight:700;line-height:1.28;color:var(--ink);letter-spacing:.005em}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--brand-dark);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--accent)}
img{max-width:100%;display:block}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:16px}
:focus-visible{outline:3px solid rgba(14,143,138,.35);outline-offset:2px;border-radius:8px}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px}
.section{padding:84px 0}
.section--tight{padding:64px 0}
.section--top{padding-top:24px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:48px;padding:0 26px;border-radius:15px;
  font-size:15.5px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 22px rgba(14,143,138,.28)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 34px rgba(14,143,138,.34)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(14,143,138,.3)}
.btn-ghost{background:#fff;color:var(--brand-dark);border-color:var(--line-strong);box-shadow:0 4px 14px rgba(23,35,38,.05)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{min-height:42px;padding:0 18px;font-size:14.5px;border-radius:13px}
.btn-block{width:100%}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(247,243,234,.94);
  border-bottom:1px solid transparent;
  transition:box-shadow .28s var(--ease),border-color .28s var(--ease),background .28s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  box-shadow:0 8px 26px rgba(23,35,38,.08);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:80px}
.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:42px;height:42px;border-radius:14px;flex:0 0 42px;
  background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(14,143,138,.3);
}
.brand-mark svg{width:23px;height:23px;fill:none;stroke:#fff;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.brand-text{font-size:18px;font-weight:800;line-height:1.2;letter-spacing:.01em;display:block}
.brand-text small{display:block;font-size:11.5px;font-weight:600;color:var(--muted);letter-spacing:.08em;margin-top:4px}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  display:inline-flex;align-items:center;padding:10px 15px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;color:var(--ink-soft);text-decoration:none;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-dark)}
.nav-link.is-active{background:var(--brand-soft);color:var(--brand-dark);box-shadow:inset 0 -2px 0 0 var(--brand)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:13px;border:1px solid var(--line-strong);
  background:#fff;color:var(--brand-dark);font-size:17px;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{background:var(--brand-soft)}
.nav-toggle.is-open{background:var(--brand);color:#fff;border-color:var(--brand)}

/* ---------- Breadcrumb ---------- */
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:26px}
.crumb a{color:var(--brand-dark);font-weight:600}
.crumb a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.crumb span[aria-current]{color:var(--ink-soft);font-weight:600}

/* ---------- Hero ---------- */
.hero-help{
  position:relative;overflow:hidden;
  padding:44px 0 76px;
  background:
    radial-gradient(880px 400px at 90% -12%, rgba(240,122,69,.15), transparent 62%),
    radial-gradient(760px 420px at 4% 2%, rgba(14,143,138,.17), transparent 62%),
    var(--bg);
}
.hero-help::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--line);
  font-size:13.5px;font-weight:700;color:var(--brand-dark);letter-spacing:.04em;
  box-shadow:0 3px 10px rgba(23,35,38,.04);
}
.eyebrow i{color:var(--accent);font-size:12px}
.hero-copy h1{
  font-size:clamp(32px,4.1vw,50px);
  font-weight:800;line-height:1.16;letter-spacing:.012em;
  margin:18px 0 0;
}
.hero-lead{font-size:17.5px;line-height:1.85;color:var(--muted);max-width:580px;margin:18px 0 0}
.help-search{
  display:flex;align-items:center;gap:8px;
  max-width:566px;margin-top:28px;padding:7px 8px 7px 18px;
  background:#fff;border:1px solid var(--line);border-radius:19px;
  box-shadow:var(--shadow);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.help-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(14,143,138,.13),var(--shadow)}
.help-search > i{color:var(--brand);font-size:15px;flex:0 0 auto}
.help-search input{
  flex:1 1 auto;min-width:0;height:46px;border:0;background:transparent;
  color:var(--ink);font-size:15.5px;outline:none;
}
.help-search input::placeholder{color:#9AA8A9}
.quick-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 17px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--ink-soft);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.tag i{font-size:12px;color:var(--brand)}
.tag:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--line-strong);transform:translateY(-2px)}
.tag:hover i{color:var(--accent)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;height:392px;object-fit:cover;
  border-radius:34px;
  box-shadow:0 22px 50px rgba(23,35,38,.16);
}
.hero-visual::before{
  content:"";position:absolute;inset:0;border-radius:34px;
  background:linear-gradient(150deg,rgba(14,143,138,.34),rgba(240,122,69,.26));
  mix-blend-mode:multiply;pointer-events:none;
}
.hero-visual-card{
  position:absolute;left:20px;bottom:20px;max-width:262px;
  background:rgba(255,255,255,.96);
  border-radius:20px;padding:15px 18px;
  box-shadow:0 14px 32px rgba(23,35,38,.18);
  display:flex;flex-direction:column;gap:3px;
}
.hero-visual-card .mini-label{font-size:11.5px;font-weight:700;letter-spacing:.12em;color:var(--accent)}
.hero-visual-card strong{font-size:26px;font-weight:800;line-height:1.15;color:var(--brand-dark)}
.hero-visual-card em{font-size:13px;font-style:normal;color:var(--muted);line-height:1.6}

/* ---------- Section head ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.25;margin-top:14px;max-width:660px}
.section-note{font-size:14.5px;color:var(--muted);max-width:360px;line-height:1.8;margin:0}

/* ---------- Check steps ---------- */
.check-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step}
.check-steps li{
  position:relative;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:28px 26px 26px;box-shadow:var(--shadow);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.check-steps li:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.check-steps li::before{
  counter-increment:step;content:counter(step);
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:13px;margin-bottom:16px;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:16px;font-weight:800;
}
.check-steps h3{font-size:19px;font-weight:700;margin-bottom:9px}
.check-steps p{font-size:14.8px;line-height:1.85;color:var(--muted)}

/* ---------- FAQ groups ---------- */
.faq-group{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:32px 36px 20px;
  box-shadow:var(--shadow);
  margin-bottom:26px;
  transition:box-shadow .22s var(--ease);
}
.faq-group:hover{box-shadow:var(--shadow-hover)}
.faq-group-head{display:flex;align-items:flex-start;gap:16px;padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:6px}
.group-badge{
  width:46px;height:46px;flex:0 0 46px;border-radius:15px;
  background:var(--grad-soft);
  border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand-dark);font-size:17px;
}
.faq-group-head h2{font-size:22px;font-weight:800;line-height:1.3}
.faq-group-head p{font-size:14px;color:var(--muted);margin-top:5px;line-height:1.7}
.group-count{
  margin-left:auto;flex:0 0 auto;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:12.5px;font-weight:700;padding:6px 14px;border-radius:var(--radius-pill);
  white-space:nowrap;
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  position:relative;width:100%;display:flex;align-items:center;gap:14px;
  padding:20px 0 20px 2px;background:none;border:0;text-align:left;
  font-size:17px;font-weight:700;color:var(--ink);cursor:pointer;
  transition:padding-left .22s var(--ease),color .22s var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:19px;bottom:19px;width:3px;border-radius:99px;
  background:var(--brand);transform:scaleY(0);transform-origin:center;
  transition:transform .24s var(--ease);
}
.faq-item.open .faq-q{padding-left:18px;color:var(--brand-dark)}
.faq-item.open .faq-q::before{transform:scaleY(1)}
.faq-q:hover{color:var(--brand-dark)}
.faq-icon{
  position:relative;margin-left:auto;flex:0 0 28px;
  width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line-strong);background:#fff;
  transition:background .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand-dark);border-radius:2px;
  transition:transform .24s var(--ease),opacity .24s var(--ease),background .22s var(--ease);
}
.faq-icon::before{left:50%;top:7px;bottom:7px;width:2px;transform:translateX(-50%)}
.faq-icon::after{top:50%;left:7px;right:7px;height:2px;transform:translateY(-50%)}
.faq-item.open .faq-icon{background:var(--brand);border-color:var(--brand)}
.faq-item.open .faq-icon::before{transform:translateX(-50%) rotate(90deg);opacity:0}
.faq-item.open .faq-icon::after{background:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-item.open .faq-a{max-height:460px}
.faq-a-inner{padding:0 0 22px 2px;max-width:820px;font-size:15.4px;line-height:1.92;color:var(--muted)}
.faq-a-inner strong{color:var(--ink-soft);font-weight:700}

/* ---------- Feedback ---------- */
.feedback-shell{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:.92fr 1.08fr;gap:44px;
  background:var(--ink);
  border-radius:34px;
  padding:48px;
  box-shadow:0 26px 60px rgba(23,35,38,.22);
}
.feedback-shell::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(520px 320px at 8% 10%, rgba(14,143,138,.42), transparent 62%),
    radial-gradient(520px 340px at 92% 88%, rgba(240,122,69,.3), transparent 60%);
}
.feedback-copy{position:relative;z-index:1;color:#fff}
.eyebrow--dark{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.22);color:#fff;box-shadow:none}
.eyebrow--dark i{color:var(--gold)}
.feedback-copy h2{color:#fff;font-size:clamp(24px,2.8vw,32px);font-weight:800;line-height:1.28;margin:18px 0 0}
.feedback-copy > p{color:rgba(255,255,255,.74);font-size:15.4px;line-height:1.9;margin-top:16px;max-width:420px}
.feedback-list{margin-top:26px;display:grid;gap:13px}
.feedback-list li{display:flex;gap:11px;font-size:14.6px;line-height:1.75;color:rgba(255,255,255,.86)}
.feedback-list i{color:var(--gold);font-size:14px;margin-top:5px;flex:0 0 auto}
.feedback-form{
  position:relative;z-index:1;
  background:#fff;border-radius:26px;padding:30px 30px 26px;
  box-shadow:0 20px 46px rgba(0,0,0,.24);
}
.feedback-form h3{font-size:20px;font-weight:800}
.form-sub{font-size:13.6px;color:var(--muted);line-height:1.75;margin-top:7px}
.field{margin-top:16px;display:flex;flex-direction:column;gap:7px}
.field label{font-size:13.6px;font-weight:700;color:var(--ink-soft)}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 15px;
  border-radius:15px;border:1px solid var(--line);
  background:#FBFAF6;color:var(--ink);font-size:15px;line-height:1.7;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{resize:vertical;min-height:104px}
.field input::placeholder,.field textarea::placeholder{color:#9AA8A9}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 4px rgba(14,143,138,.12);
}
.checkline{display:flex;align-items:flex-start;gap:10px;margin:16px 0 18px;font-size:13.4px;color:var(--muted);line-height:1.7}
.checkline input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand);flex:0 0 18px}
.form-note{display:none;margin-top:14px;padding:12px 15px;border-radius:14px;background:var(--brand-soft);color:var(--brand-dark);font-size:13.6px;line-height:1.7}
.form-note.is-visible{display:block}

/* ---------- CTA ---------- */
.cta-banner{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  background:var(--grad);
  border-radius:32px;padding:44px 46px;
  box-shadow:0 22px 52px rgba(14,143,138,.26);
}
.cta-banner::after{
  content:"";position:absolute;right:-70px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.16);
}
.cta-banner h2{color:#fff;font-size:clamp(22px,2.6vw,30px);font-weight:800;line-height:1.3;position:relative;z-index:1;max-width:560px}
.cta-banner p{color:rgba(255,255,255,.88);font-size:15px;line-height:1.8;margin-top:12px;position:relative;z-index:1;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}
.cta-actions .btn-primary{background:#fff;color:var(--brand-dark);box-shadow:0 10px 26px rgba(16,40,42,.2)}
.cta-actions .btn-primary:hover{background:#fff;color:var(--accent);box-shadow:0 16px 34px rgba(16,40,42,.26)}
.cta-actions .btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.55)}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.24);color:#fff;border-color:#fff}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;
  background:var(--ink);
  color:rgba(255,255,255,.72);
  padding:64px 0 28px;
  margin-top:12px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;background:var(--grad);
}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{color:#fff}
.footer-brand .brand:hover{color:#fff}
.footer-brand .brand-text small{color:rgba(255,255,255,.52)}
.footer-brand p{margin-top:18px;font-size:14.4px;line-height:1.9;color:rgba(255,255,255,.66);max-width:360px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.03em}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14.2px;color:rgba(255,255,255,.7)}
.footer-col a:hover{color:var(--gold)}
.footer-bottom{
  margin-top:46px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.2px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:var(--gold)}
.footer-bottom a:hover{color:#fff}

/* ---------- Responsive ---------- */
@media (max-width:1180px){
  .main-nav{gap:0}
  .nav-link{padding:10px 12px;font-size:14.5px}
  .brand-text{font-size:17px}
}
@media (max-width:1023px){
  .container{padding-left:24px;padding-right:24px}
  .header-inner{min-height:72px;gap:16px}
  .main-nav{
    position:absolute;top:calc(100% + 10px);left:20px;right:20px;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    background:#FFFDF8;border:1px solid var(--line);border-radius:20px;
    padding:12px;box-shadow:0 22px 50px rgba(23,35,38,.18);z-index:95;
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:13px 16px;border-radius:14px;font-size:16px}
  .nav-link.is-active{box-shadow:none}
  .nav-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual img{height:330px}
  .hero-visual-card{left:16px;bottom:16px;max-width:300px}
  .check-steps{grid-template-columns:1fr 1fr}
  .feedback-shell{grid-template-columns:1fr;padding:38px;gap:32px}
  .feedback-copy > p{max-width:none}
  .footer-top{grid-template-columns:1fr 1fr;gap:34px}
  .section{padding:68px 0}
  .section--tight{padding:54px 0}
}
@media (max-width:767px){
  .brand-text small{display:none}
  .brand-text{font-size:16px}
  .hero-help{padding:32px 0 56px}
  .hero-lead{font-size:16.5px}
  .help-search{flex-wrap:wrap;padding:8px 10px 8px 14px;border-radius:18px}
  .help-search input{height:44px;flex:1 1 140px}
  .help-search .btn-sm{width:100%;margin-top:4px}
  .hero-visual img{height:280px;border-radius:26px}
  .hero-visual::before{border-radius:26px}
  .hero-visual-card{max-width:none;left:14px;right:14px;bottom:14px}
  .check-steps{grid-template-columns:1fr}
  .faq-group{padding:24px 20px 12px;border-radius:24px}
  .faq-group-head{flex-wrap:wrap;gap:12px}
  .group-count{margin-left:0}
  .faq-q{font-size:16px;padding:18px 0 18px 2px;gap:12px}
  .faq-item.open .faq-q{padding-left:14px}
  .feedback-shell{padding:26px 22px;border-radius:26px}
  .feedback-form{padding:24px 20px 22px;border-radius:22px}
  .cta-banner{padding:32px 24px;border-radius:26px;gap:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .footer-top{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .section{padding:56px 0}
  .section--tight{padding:46px 0}
}
@media (max-width:520px){
  .container{padding-left:18px;padding-right:18px}
  .header-actions .btn-sm{display:none}
  .hero-copy h1{font-size:31px}
  .section-head{gap:16px;margin-bottom:28px}
  .section-note{max-width:none}
  .feedback-shell{padding:22px 16px}
  .faq-group{padding:22px 16px 10px}
  .quick-tags{gap:8px}
  .tag{font-size:13.2px;padding:8px 14px}
}