/* roulang page: index */
:root{
  --brand-900:#0F2A24;
  --brand-700:#17493D;
  --brand-500:#2C6B59;
  --accent:#C9F24D;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --line:#E2DED4;
  --text:#1A1D1C;
  --muted:#5E6663;
  --warn:#B4553A;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(20,25,23,.06),0 12px 28px -18px rgba(20,25,23,.22);
  --shadow-2:0 2px 6px rgba(20,25,23,.08),0 20px 40px -20px rgba(20,25,23,.32);
  --maxw:1200px;
  --mono:ui-monospace,"SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.015em;color:var(--text);line-height:1.25;}
h1{font-size:clamp(2.1rem,4.4vw,3.5rem);line-height:1.12;letter-spacing:-.025em;font-weight:800;}
h2{font-size:clamp(1.55rem,2.6vw,2.3rem);font-weight:750;line-height:1.25;}
h3{font-size:1.18rem;font-weight:700;line-height:1.4;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-500);}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}
::selection{background:var(--accent);color:var(--brand-900);}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head p{color:var(--muted);font-size:16px;margin-top:12px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;letter-spacing:.12em;
  color:var(--brand-700);text-transform:uppercase;
}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--brand-700);display:inline-block;}
.mono{font-family:var(--mono);}
/* ============ 公告条 ============ */
.topbar{background:var(--brand-900);color:rgba(247,246,242,.88);font-size:13px;}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px;}
.topbar-text{display:flex;align-items:center;gap:10px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none;}
.topbar a{color:var(--accent);display:inline-flex;align-items:center;gap:6px;flex:none;}
.topbar a:hover{color:#fff;}
/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(247,246,242,.92);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid transparent;transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{background:var(--surface);border-bottom-color:var(--line);box-shadow:0 6px 20px -18px rgba(20,25,23,.6);}
.header-inner{display:flex;align-items:center;gap:24px;height:76px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand-mark{width:30px;height:30px;display:grid;place-items:center;border-radius:9px;background:var(--brand-900);color:var(--accent);}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--brand-900);}
.nav-chips{display:flex;align-items:center;gap:6px;flex:1;min-width:0;overflow-x:auto;scrollbar-width:none;}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:34px;padding:0 16px;border-radius:999px;border:1px solid var(--line);
  font-size:13.5px;font-weight:600;color:var(--muted);white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.chip:hover{background:#EFEDE6;color:var(--brand-700);border-color:#D6D1C5;}
.chip.is-active{background:var(--brand-700);border-color:var(--brand-700);color:#F7F6F2;}
.chip.is-active:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;}
.header-actions{display:flex;align-items:center;gap:18px;flex:none;}
.link-plain{font-size:14px;font-weight:600;color:var(--text);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.link-plain:hover{color:var(--brand-500);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn svg{transition:transform .2s ease;}
.btn:hover svg{transform:translateX(4px);}
.btn-primary{background:var(--brand-700);color:#F7F6F2;}
.btn-primary:hover{background:var(--brand-900);color:#fff;box-shadow:inset 0 -2px 0 var(--accent);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{border-color:var(--brand-700);color:var(--brand-700);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-accent{background:var(--accent);color:var(--brand-900);}
.btn-accent:hover{background:#D6F86E;color:var(--brand-900);}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;align-items:center;justify-content:center;color:var(--brand-900);}
/* 移动抽屉 */
.mobile-drawer{
  display:none;position:fixed;inset:76px 0 0 0;background:var(--bg);z-index:55;
  padding:24px;overflow-y:auto;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .chip{width:100%;justify-content:flex-start;height:48px;font-size:15px;margin-bottom:10px;}
.drawer-actions{display:grid;gap:12px;margin-top:20px;}
/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  min-height:86vh;max-height:760px;display:flex;align-items:center;
  padding:56px 0 72px;
  background:
    repeating-linear-gradient(0deg,rgba(20,25,23,.04) 0 1px,transparent 1px 32px),
    repeating-linear-gradient(90deg,rgba(20,25,23,.04) 0 1px,transparent 1px 32px),
    linear-gradient(180deg,#F7F6F2 0%,#F2F1EB 100%);
}
.hero-grid{width:100%;}
.hero-copy{display:flex;flex-direction:column;align-items:flex-start;gap:22px;}
.hero h1{max-width:15em;}
.hero-sub{font-size:17px;color:var(--muted);max-width:34em;line-height:1.8;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:0;margin-top:14px;}
.hero-stats li{
  display:flex;flex-direction:column;gap:2px;padding:0 22px;
  border-left:1px solid var(--line);
}
.hero-stats li:first-child{padding-left:0;border-left:0;}
.stat-num{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--brand-700);letter-spacing:-.02em;line-height:1.2;}
.stat-cap{font-size:12px;color:var(--muted);letter-spacing:.02em;}
.hero-media{position:relative;}
.hero-figure{position:relative;margin:0;border-radius:var(--radius-img);overflow:visible;}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow-2);}
.hero-figure::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius-img);pointer-events:none;
  background:
    repeating-linear-gradient(0deg,rgba(255,255,255,.10) 0 1px,transparent 1px 32px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.10) 0 1px,transparent 1px 32px);
}
.badge-version{
  position:absolute;top:16px;left:16px;z-index:2;
  background:rgba(15,42,36,.88);color:#F7F6F2;font-family:var(--mono);
  font-size:12px;letter-spacing:.06em;padding:6px 12px;border-radius:999px;border:1px solid rgba(201,242,77,.35);
}
.float-card{
  position:absolute;right:16px;bottom:16px;z-index:2;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  padding:14px 18px;box-shadow:var(--shadow-2);display:flex;flex-direction:column;gap:2px;
}
.float-card .stat-num{font-size:22px;}
/* 锚点条 */
.anchor-bar{background:var(--surface);border-bottom:1px solid var(--line);}
.anchor-bar .wrap{display:flex;gap:10px;align-items:center;padding-top:16px;padding-bottom:16px;overflow-x:auto;scrollbar-width:none;}
.anchor-bar .wrap::-webkit-scrollbar{display:none;}
/* ============ 时间线 ============ */
.timeline{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));margin-top:8px;}
.tl-item{position:relative;padding:62px 24px 0 0;}
.tl-item::before{content:"";position:absolute;top:66px;left:0;right:0;height:1px;background:var(--line);}
.tl-item:last-child::before{right:24px;}
.tl-dot{position:absolute;top:62px;left:0;width:9px;height:9px;border-radius:50%;background:var(--brand-700);transition:transform .2s ease;}
.tl-item:hover .tl-dot{transform:scale(1.35);background:var(--brand-900);}
.tl-time{position:absolute;top:16px;left:0;font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--muted);}
.tl-item h3{font-size:15.5px;margin-bottom:6px;}
.tl-item p{font-size:13.5px;color:var(--muted);line-height:1.7;}
/* ============ 能力矩阵 ============ */
.cap-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px;}
.cap-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;gap:12px;
}
.cap-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D6D1C5;}
.cap-card p{font-size:14.5px;color:var(--muted);line-height:1.8;}
.cap-num{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--brand-700);display:flex;align-items:center;gap:8px;}
.cap-num::before{content:"";width:8px;height:8px;background:var(--accent);border-radius:2px;display:inline-block;}
.cap-card img{width:100%;aspect-ratio:16/9;object-fit:cover;margin-bottom:4px;transition:transform .35s ease;}
.cap-card--lg{padding:0;overflow:hidden;}
.cap-card--lg .cap-body{padding:26px;}
.cap-card--lg img{border-radius:0;margin-bottom:0;}
.cap-card--lg:hover img{transform:scale(1.03);}
.cap-img-clip{overflow:hidden;}
.cap-1{grid-column:1/8;}
.cap-2{grid-column:8/13;display:flex;flex-direction:column;gap:24px;}
.cap-2 .cap-card{flex:1;}
.cap-3{grid-column:1/6;display:flex;}
.cap-3 .cap-card{flex:1;}
.cap-4{grid-column:6/13;}
/* ============ 对比 ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:start;}
.plan{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;display:flex;flex-direction:column;gap:18px;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.plan:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.plan--featured{border:2px solid var(--accent);transform:translateY(-8px);position:relative;}
.plan--featured:hover{transform:translateY(-11px);}
.plan-flag{
  position:absolute;top:-13px;left:26px;background:var(--brand-900);color:var(--accent);
  font-size:12px;font-weight:600;letter-spacing:.08em;padding:4px 12px;border-radius:999px;
}
.plan h3{font-size:1.25rem;}
.plan-price{font-family:var(--mono);font-size:14px;color:var(--brand-700);font-weight:600;}
.plan-price span{font-family:inherit;display:block;font-size:12.5px;color:var(--muted);font-weight:400;letter-spacing:.02em;margin-top:4px;}
.plan-list{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--muted);}
.plan-list li{display:flex;gap:10px;align-items:flex-start;line-height:1.6;}
.plan-list svg{flex:none;margin-top:5px;color:var(--brand-500);}
.plan .btn{width:100%;margin-top:auto;}
/* ============ 表单 ============ */
.demo{
  background:var(--brand-900);color:#F7F6F2;position:relative;overflow:hidden;
}
.demo::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    repeating-linear-gradient(0deg,rgba(255,255,255,.045) 0 1px,transparent 1px 32px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.045) 0 1px,transparent 1px 32px);
}
.demo .wrap{position:relative;z-index:1;}
.demo h2{color:#F7F6F2;}
.demo-head{margin-bottom:36px;}
.demo-head p{color:rgba(247,246,242,.72);margin-top:12px;font-size:15.5px;}
.demo-form{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:6px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1/-1;}
.field label{font-size:13px;color:rgba(247,246,242,.68);letter-spacing:.04em;}
.field input,.field select{
  height:48px;border-radius:var(--radius-btn);border:1px solid rgba(247,246,242,.22);
  background:rgba(255,255,255,.06);color:#F7F6F2;padding:0 14px;font-size:15px;
  font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  appearance:none;-webkit-appearance:none;
}
.field select{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23C9F24D' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:40px;
}
.field select option{color:#1A1D1C;}
.field input::placeholder{color:rgba(247,246,242,.4);}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--accent);background:rgba(255,255,255,.1);
  box-shadow:0 0 0 3px rgba(201,242,77,.35);
}
.form-note{grid-column:1/-1;font-size:13px;color:rgba(247,246,242,.62);line-height:1.7;}
.form-msg{grid-column:1/-1;font-size:14px;color:var(--accent);min-height:22px;}
.demo-side{display:flex;flex-direction:column;gap:20px;padding-left:12px;}
.demo-side h3{color:#F7F6F2;font-size:1.15rem;}
.side-points{display:flex;flex-direction:column;gap:14px;}
.side-points li{display:flex;gap:12px;font-size:14.5px;color:rgba(247,246,242,.78);line-height:1.7;}
.side-points .n{font-family:var(--mono);font-size:12px;color:var(--accent);padding-top:3px;}
.side-contact{border-top:1px solid rgba(247,246,242,.16);padding-top:18px;font-size:13.5px;color:rgba(247,246,242,.66);line-height:1.9;}
.side-contact strong{color:#F7F6F2;font-weight:600;display:block;font-size:14px;margin-bottom:6px;}
/* ============ 最新信息 ============ */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.news-head .section-head{margin-bottom:0;}
.news-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:24px;}
.news-main{display:flex;flex-direction:column;height:100%;}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;height:100%;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D6D1C5;}
.news-thumb{overflow:hidden;}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .35s ease;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;
  background:rgba(23,73,61,.12);color:var(--brand-700);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.news-date{font-family:var(--mono);font-size:12.5px;color:var(--muted);letter-spacing:.04em;}
.news-card h3{font-size:1.1rem;line-height:1.45;}
.news-card p{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-more{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px;}
.news-card:hover .news-more svg{transform:translateX(4px);}
.news-more svg{transition:transform .2s ease;}
.news-side{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.news-side .news-card{flex-direction:row;}
.news-side .news-thumb{flex:none;width:38%;}
.news-side .news-thumb img{height:100%;aspect-ratio:auto;}
.news-side .news-body{padding:20px;gap:8px;}
.news-side .news-card h3{font-size:1rem;}
.news-rows{margin-top:24px;border-top:1px solid var(--line);}
.news-row{
  display:flex;align-items:center;gap:16px;padding:18px 4px;border-bottom:1px solid var(--line);
  transition:background .2s ease,padding .2s ease;
}
.news-row:hover{background:#F1EFE8;padding-left:12px;}
.news-row .r-title{font-size:15px;font-weight:600;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.news-row .news-date{flex:none;}
.news-row .r-arrow{color:var(--brand-700);flex:none;display:inline-flex;transition:transform .2s ease;}
.news-row:hover .r-arrow{transform:translateX(4px);}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);padding:48px 24px;text-align:center;
  color:var(--muted);display:flex;flex-direction:column;align-items:center;gap:12px;background:var(--surface);
}
.empty-state svg{color:#BFB9AA;}
.empty-state p{font-size:14px;}
/* ============ FAQ ============ */
.faq-list{max-width:820px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;font-size:16px;font-weight:600;cursor:pointer;transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-700);}
.faq-item summary .plus{
  flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;transition:transform .2s ease,background .2s ease,border-color .2s ease;
}
.faq-item[open] summary .plus{transform:rotate(180deg);background:var(--brand-700);border-color:var(--brand-700);color:var(--accent);}
.faq-body{padding:0 4px 24px;font-size:15px;color:var(--muted);line-height:1.85;max-width:760px;}
.faq-foot{margin-top:28px;padding-top:24px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;font-size:14px;color:var(--muted);}
/* ============ CTA 条 ============ */
.cta-bar{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.cta-bar .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;padding-top:36px;padding-bottom:36px;}
.cta-bar h3{font-size:1.2rem;}
.cta-bar p{font-size:14px;color:var(--muted);margin-top:4px;}
/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(247,246,242,.72);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand-text{color:#F7F6F2;}
.footer-brand .brand-mark{background:rgba(201,242,77,.14);color:var(--accent);}
.footer-desc{font-size:13.5px;line-height:1.9;margin-top:16px;max-width:26em;color:rgba(247,246,242,.66);}
.footer-col h4{font-size:12.5px;letter-spacing:.1em;color:rgba(247,246,242,.55);font-weight:600;margin-bottom:16px;text-transform:uppercase;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;font-size:14px;}
.footer-col a{color:rgba(247,246,242,.78);}
.footer-col a:hover{color:var(--accent);}
.footer-contact{font-size:13.5px;line-height:1.9;color:rgba(247,246,242,.66);}
.footer-contact strong{color:#F7F6F2;font-weight:600;display:block;margin-bottom:6px;font-size:14px;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(247,246,242,.14);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.5px;color:rgba(247,246,242,.5);
}
.footer-bottom a{color:rgba(247,246,242,.6);}
.footer-bottom a:hover{color:var(--accent);}
/* 动效 */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .6s ease,transform .6s ease;}
.reveal.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}
/* ============ 响应式 ============ */
@media (max-width:1024px){
  .section{padding:72px 0;}
  .nav-chips{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .link-plain{display:none;}
  .header-inner{height:64px;justify-content:space-between;}
  .hero{min-height:auto;max-height:none;padding:40px 0 56px;}
  .hero-media{margin-top:36px;}
  .cap-1,.cap-2,.cap-3,.cap-4{grid-column:1/-1;}
  .cap-2{flex-direction:row;}
  .plan-grid{grid-template-columns:1fr;gap:20px;}
  .plan--featured{transform:none;}
  .plan--featured:hover{transform:translateY(-3px);}
  .news-grid{grid-template-columns:1fr;}
  .news-side{grid-template-rows:auto auto;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .demo-form{grid-template-columns:1fr;}
  .demo-side{padding-left:0;margin-top:32px;}
}
@media (max-width:768px){
  .wrap{padding:0 16px;}
  .topbar .wrap{height:auto;padding-top:8px;padding-bottom:8px;font-size:12px;}
  .hero-stats li{padding:0 14px;}
  .stat-num{font-size:22px;}
  .timeline{grid-template-columns:1fr;}
  .tl-item{padding:0 0 28px 30px;}
  .tl-item::before{top:0;bottom:0;left:5px;right:auto;width:1px;height:auto;}
  .tl-item:last-child::before{bottom:auto;height:14px;}
  .tl-item:last-child{padding-bottom:0;}
  .tl-dot{top:6px;left:1px;}
  .tl-time{position:static;display:block;margin-bottom:6px;}
  .cap-2{flex-direction:column;}
  .news-side .news-card{flex-direction:column;}
  .news-side .news-thumb{width:100%;}
  .news-side .news-thumb img{aspect-ratio:16/9;height:auto;}
  .news-row{flex-wrap:wrap;gap:8px;}
  .news-row .r-title{white-space:normal;flex:1 1 100%;font-size:14.5px;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-bar .wrap{flex-direction:column;align-items:flex-start;}
  .btn{width:100%;}
  .hero-cta{width:100%;}
  .plan .btn{width:100%;}
  .mobile-drawer{inset:64px 0 0 0;}
}
@media (max-width:520px){
  h1{font-size:1.9rem;}
  .section{padding:56px 0;}
  .hero-stats{flex-direction:column;gap:12px;}
  .hero-stats li{padding:0;border-left:0;}
  .header-actions .btn{display:none;}
  .anchor-bar .wrap{padding-top:12px;padding-bottom:12px;}
}

/* roulang page: article */
:root{
  --brand-900:#0F2A24;
  --brand-700:#17493D;
  --brand-500:#2C6B59;
  --accent:#C9F24D;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --line:#E2DED4;
  --text:#1A1D1C;
  --muted:#5E6663;
  --warn:#B4553A;
  --radius-lg:14px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(20,25,23,.06),0 12px 28px -18px rgba(20,25,23,.22);
  --shadow-2:0 2px 4px rgba(20,25,23,.08),0 20px 40px -22px rgba(20,25,23,.30);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-500);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-700);}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}

.wrap{width:min(var(--wrap),calc(100% - 48px));margin:0 auto;}
.eyebrow{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.08em;
  color:var(--muted);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--accent);}
.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap;}
.section-title h2{
  font-size:clamp(1.55rem,2.6vw,2.15rem);
  font-weight:750;
  padding-left:18px;
  position:relative;
}
.section-title h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:4px;background:var(--brand-700);
}
.section-title p{color:var(--muted);font-size:15px;max-width:560px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);
  border:1px solid transparent;background:var(--brand-700);color:#F7F6F2;
  font-weight:600;font-size:15px;white-space:nowrap;
  transition:background .18s ease,box-shadow .18s ease,transform .18s ease,color .18s ease;
}
.btn:hover{background:var(--brand-900);color:#F7F6F2;box-shadow:inset 0 -2px 0 var(--accent);}
.btn:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;color:var(--text);border-color:var(--line);
}
.btn-ghost:hover{background:transparent;color:var(--brand-700);border-color:var(--brand-700);box-shadow:none;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn .arrow{transition:transform .18s ease;}
.btn:hover .arrow{transform:translateX(4px);}
.link-quiet{
  font-size:14px;color:var(--muted);text-decoration:underline;
  text-underline-offset:4px;text-decoration-thickness:1px;
}
.link-quiet:hover{color:var(--brand-500);}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--brand-700);text-decoration:underline;text-underline-offset:4px;
}

/* ============ 头部 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.94);
  border-bottom:1px solid transparent;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
  backdrop-filter:saturate(1.2) blur(8px);
}
.site-header.is-scrolled{background:var(--surface);border-bottom-color:var(--line);box-shadow:0 8px 24px -22px rgba(20,25,23,.5);}
.header-inner{display:flex;align-items:center;gap:26px;height:76px;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:18px;font-weight:800;color:var(--text);letter-spacing:-.01em;flex:none;
}
.brand:hover{color:var(--text);}
.brand-mark{
  display:grid;place-items:center;width:32px;height:32px;border-radius:10px;
  background:var(--brand-900);color:var(--accent);
}
.brand-text{white-space:nowrap;}
.nav-chips{
  display:flex;align-items:center;gap:6px;flex:1 1 auto;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:4px 2px;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;justify-content:center;
  height:34px;padding:0 15px;border-radius:999px;
  border:1px solid var(--line);background:transparent;color:var(--muted);
  font-size:13.5px;font-weight:500;white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.chip:hover{background:var(--surface);color:var(--text);border-color:#D6D1C5;}
.chip.is-active{background:var(--brand-700);border-color:var(--brand-700);color:#F7F6F2;}
.chip.is-active:hover{background:var(--brand-900);border-color:var(--brand-900);color:#F7F6F2;}
.header-actions{display:flex;align-items:center;gap:16px;flex:none;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);color:var(--text);
}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:var(--surface);
  padding:16px 0 22px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .chip{width:100%;justify-content:flex-start;height:44px;margin-bottom:8px;}
.mobile-drawer .drawer-actions{display:flex;gap:10px;margin-top:14px;}
.mobile-drawer .drawer-actions .btn{flex:1;}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);padding:26px 0 0;
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand-700);}
.crumbs .sep{color:#B7B1A4;}
.crumbs .current{color:var(--text);}

/* ============ 文章主体布局 ============ */
.article-shell{padding:26px 0 72px;}
.article-grid{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:48px;align-items:start;}
.article-head{margin-bottom:26px;}
.cat-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:6px;
  background:rgba(23,73,61,.12);color:var(--brand-700);
  font-size:12.5px;font-weight:600;
}
.article-title{
  font-size:clamp(1.9rem,4vw,2.6rem);
  font-weight:800;line-height:1.22;letter-spacing:-.02em;
  margin:16px 0 14px;max-width:20em;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 16px;
  font-size:13px;color:var(--muted);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C4BEB1;}
.meta-row .mono{font-family:var(--font-mono);letter-spacing:.02em;}
.hero-figure{margin:26px 0 8px;border-radius:var(--radius-md);overflow:hidden;background:#EFEDE6;}
.hero-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.hero-caption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}

/* ============ 正文排版 ============ */
.article-body{
  max-width:760px;font-size:17px;line-height:1.85;
  color:#222625;
}
.article-body > * + *{margin-top:1.25em;}
.article-body p{margin:0;}
.article-body h2{
  font-size:clamp(1.3rem,2.2vw,1.6rem);font-weight:750;line-height:1.4;
  margin-top:2.2em;margin-bottom:.6em;padding-left:14px;
  border-left:3px solid var(--brand-700);
}
.article-body h3{
  font-size:1.16rem;font-weight:700;margin-top:1.6em;margin-bottom:.5em;
}
.article-body h4{font-size:1.02rem;font-weight:700;margin-top:1.3em;margin-bottom:.4em;}
.article-body ul,.article-body ol{padding-left:1.4em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:.5em;}
.article-body li::marker{color:var(--brand-700);}
.article-body blockquote{
  margin:1.6em 0;padding:20px 22px;border-left:3px solid var(--brand-700);
  background:var(--surface);border-radius:0 var(--radius-md) var(--radius-md) 0;
  color:var(--muted);font-style:normal;
}
.article-body blockquote p{margin:0;}
.article-body img{border-radius:var(--radius-md);margin:1.6em auto;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;background:var(--surface);
  border-radius:var(--radius-md);overflow:hidden;
}
.article-body th{
  background:#F1EFE9;text-align:left;font-weight:700;font-size:14px;
  color:var(--brand-900);
}
.article-body th,.article-body td{
  padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:top;
}
.article-body tr:last-child td{border-bottom:0;}
.article-body a{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px;}
.article-body code{
  font-family:var(--font-mono);font-size:.92em;background:#EDEBE3;
  padding:2px 6px;border-radius:6px;
}
.article-body pre{
  background:var(--brand-900);color:#E6EDE8;padding:18px 20px;
  border-radius:var(--radius-md);overflow-x:auto;font-size:14.5px;line-height:1.7;
}
.article-body pre code{background:transparent;padding:0;color:inherit;}
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-md);}

/* ============ 标签 / 转化条 / 上下篇 ============ */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line);}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:6px;
  border:1px solid var(--line);background:var(--surface);
  font-size:13px;color:var(--muted);transition:all .18s ease;
}
.tag:hover{border-color:var(--brand-700);color:var(--brand-700);}
.inline-cta{
  margin-top:34px;display:flex;align-items:center;justify-content:space-between;gap:22px;
  padding:26px 28px;border-radius:var(--radius-lg);
  background:#F0EEE6;border:1px solid var(--line);
}
.inline-cta h3{font-size:1.05rem;font-weight:750;margin-bottom:6px;}
.inline-cta p{font-size:14px;color:var(--muted);}
.post-nav{
  margin-top:30px;display:grid;grid-template-columns:1fr 1fr;gap:14px;
}
.post-nav a{
  display:block;padding:18px 20px;border-radius:var(--radius-md);
  border:1px solid var(--line);background:var(--surface);color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.post-nav a:hover{border-color:var(--brand-700);box-shadow:var(--shadow-1);transform:translateY(-2px);color:var(--text);}
.post-nav span{display:block;font-size:12.5px;color:var(--muted);margin-bottom:6px;font-family:var(--font-mono);}
.post-nav strong{font-size:15px;font-weight:700;display:flex;align-items:center;gap:8px;}

/* ============ 侧栏 ============ */
.side-col{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px 22px;box-shadow:var(--shadow-1);
}
.side-card h3{
  font-size:13px;letter-spacing:.08em;color:var(--muted);font-weight:700;
  text-transform:uppercase;margin-bottom:14px;
}
.side-card h3::after{content:"";display:block;width:26px;height:2px;background:var(--brand-700);margin-top:6px;}
.side-chips{display:flex;flex-wrap:wrap;gap:8px;}
.side-list li + li{border-top:1px solid var(--line);}
.side-list a{
  display:flex;flex-direction:column;gap:4px;padding:12px 0;color:var(--text);
  font-size:14.5px;line-height:1.55;transition:color .18s ease;
}
.side-list a:hover{color:var(--brand-700);}
.side-list .mono{font-family:var(--font-mono);font-size:12.5px;color:var(--muted);letter-spacing:.02em;}
.side-dark{
  background:var(--brand-900);border-color:var(--brand-900);color:#E9EFEA;
}
.side-dark h3{color:rgba(247,246,242,.72);}
.side-dark h3::after{background:var(--accent);}
.side-dark p{font-size:14px;color:rgba(247,246,242,.78);line-height:1.7;}
.side-dark .btn{margin-top:16px;width:100%;background:var(--accent);color:var(--brand-900);}
.side-dark .btn:hover{background:#D9FF63;color:var(--brand-900);box-shadow:none;}

/* ============ 相关推荐 ============ */
.related{padding:0 0 80px;}
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D6D1C5;}
.card-media{overflow:hidden;background:#EFEDE6;}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:1.05rem;font-weight:700;line-height:1.5;}
.card-body p{font-size:14.5px;color:var(--muted);line-height:1.7;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:8px;}
.card-foot .mono{font-family:var(--font-mono);font-size:12.5px;color:var(--muted);}

/* ============ 底部 CTA ============ */
.cta-band{
  background:var(--brand-900);color:#F7F6F2;position:relative;overflow:hidden;
  border-radius:20px;padding:56px 48px;margin:0 auto 84px;width:min(var(--wrap),calc(100% - 48px));
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.04;
  background-image:repeating-linear-gradient(0deg,#fff 0 1px,transparent 1px 32px),
                   repeating-linear-gradient(90deg,#fff 0 1px,transparent 1px 32px);
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:750;max-width:18em;}
.cta-inner p{color:rgba(247,246,242,.78);font-size:15px;margin-top:10px;max-width:34em;}
.cta-inner .btn{background:var(--accent);color:var(--brand-900);}
.cta-inner .btn:hover{background:#D9FF63;color:var(--brand-900);box-shadow:none;}
.cta-meta{display:flex;gap:28px;margin-top:22px;font-family:var(--font-mono);font-size:13px;color:rgba(247,246,242,.66);flex-wrap:wrap;}

/* ============ 空态 ============ */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-lg);
  padding:48px 28px;text-align:center;background:var(--surface);
}
.empty-state svg{color:var(--brand-700);margin-bottom:14px;}
.empty-state h3{font-size:1.1rem;margin-bottom:8px;}
.empty-state p{font-size:14.5px;color:var(--muted);margin-bottom:18px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(247,246,242,.72);padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.site-footer .brand{color:#F7F6F2;}
.site-footer .brand-mark{background:rgba(247,246,242,.1);color:var(--accent);}
.footer-desc{font-size:14px;line-height:1.8;margin-top:16px;max-width:30em;color:rgba(247,246,242,.66);}
.footer-contact{font-size:13.5px;line-height:1.9;color:rgba(247,246,242,.66);}
.footer-contact strong{display:block;color:rgba(247,246,242,.88);font-size:13px;letter-spacing:.08em;margin-bottom:6px;}
.footer-col h4{
  font-size:13px;letter-spacing:.08em;color:rgba(247,246,242,.88);
  margin-bottom:16px;font-weight:700;
}
.footer-col li + li{margin-top:10px;}
.footer-col a{color:rgba(247,246,242,.68);font-size:14px;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(247,246,242,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,246,242,.56);font-family:var(--font-mono);letter-spacing:.02em;
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .5s ease,transform .5s ease;}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .header-inner{gap:16px;}
  .nav-chips{display:none;}
  .header-actions .link-quiet{display:none;}
  .nav-toggle{display:inline-flex;}
  .article-grid{grid-template-columns:minmax(0,1fr);gap:36px;}
  .side-col{position:static;top:auto;}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .wrap{width:calc(100% - 32px);}
  .site-header .header-inner{height:64px;}
  .article-shell{padding-top:8px;}
  .article-body{font-size:16px;line-height:1.8;}
  .hero-figure img{aspect-ratio:4/3;}
  .inline-cta{flex-direction:column;align-items:flex-start;padding:22px;}
  .inline-cta .btn{width:100%;}
  .post-nav{grid-template-columns:1fr;}
  .rec-grid{grid-template-columns:1fr;}
  .cta-band{padding:36px 24px;border-radius:16px;width:calc(100% - 32px);margin-bottom:56px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-inner .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .section-title{margin-bottom:26px;}
}
@media (max-width:520px){
  .article-title{font-size:1.72rem;}
  .header-actions .btn{padding:0 14px;font-size:13.5px;height:38px;}
  .meta-row{font-size:12.5px;}
  .side-card{padding:18px;}
  .article-body table{font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0F2A24;
  --brand-700:#17493D;
  --brand-500:#2C6B59;
  --accent:#C9F24D;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --line:#E2DED4;
  --text:#1A1D1C;
  --muted:#5E6663;
  --warn:#B4553A;
  --radius-card:14px;
  --radius-img:12px;
  --radius-ctl:10px;
  --shadow-1:0 1px 2px rgba(20,25,23,.06),0 12px 28px -18px rgba(20,25,23,.22);
  --shadow-2:0 2px 4px rgba(20,25,23,.08),0 18px 38px -22px rgba(20,25,23,.32);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Consolas,monospace;
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;padding:0;
  font-family:var(--font-sans);
  font-size:16px;line-height:1.75;
  color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;font-size:inherit;}
table{border-collapse:collapse;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(247,246,242,.94);
  border-bottom:1px solid transparent;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{
  background:var(--surface);
  border-bottom-color:var(--line);
  box-shadow:0 10px 24px -22px rgba(20,25,23,.55);
}
.header-inner{display:flex;align-items:center;gap:26px;height:76px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  display:inline-grid;place-items:center;
  width:32px;height:32px;border-radius:9px;
  background:var(--brand-700);color:var(--accent);
}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-.01em;}
.nav-chips{
  display:flex;align-items:center;gap:6px;
  flex:1 1 auto;overflow-x:auto;padding:4px 0;
  scrollbar-width:none;-ms-overflow-style:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;justify-content:center;
  height:34px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:transparent;
  color:var(--muted);font-size:13.5px;font-weight:500;
  white-space:nowrap;transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.chip:hover{background:#EFEDE6;color:var(--text);}
.chip.is-active{background:var(--brand-700);border-color:var(--brand-700);color:#F7F6F2;}
.chip.is-active:hover{background:var(--brand-900);border-color:var(--brand-900);color:#FFFFFF;}
.header-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.link-plain{font-size:13.5px;color:var(--muted);}
.link-plain:hover{color:var(--brand-500);text-decoration:underline;text-underline-offset:4px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-ctl);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--brand-700);color:#F7F6F2;}
.btn-primary:hover{background:var(--brand-900);box-shadow:inset 0 -2px 0 var(--accent);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{border-color:var(--brand-700);color:var(--brand-700);}
.arrow{display:inline-block;transition:transform .2s ease;}
.btn:hover .arrow,.link-arrow:hover .arrow{transform:translateX(4px);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--brand-700);}
.link-arrow:hover{color:var(--brand-500);}

/* ---------- Breadcrumbs ---------- */
.crumbs{padding:26px 0 0;font-size:13px;color:var(--muted);}
.crumbs a:hover{color:var(--brand-500);}
.crumbs .sep{margin:0 8px;color:#B9B4A8;}
.crumbs .current{color:var(--text);}

/* ---------- Page hero ---------- */
.page-hero{position:relative;padding:26px 0 56px;overflow:hidden;}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.045;
  background-image:
    repeating-linear-gradient(90deg,var(--brand-700) 0 1px,transparent 1px 32px),
    repeating-linear-gradient(0deg,var(--brand-700) 0 1px,transparent 1px 32px);
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.75fr) minmax(0,1fr);gap:44px;align-items:start;}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;color:var(--brand-700);}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--accent);box-shadow:0 0 0 3px rgba(201,242,77,.26);}
.page-title{margin-top:18px;font-size:clamp(2.1rem,4.6vw,3.4rem);font-weight:800;letter-spacing:-.02em;line-height:1.14;}
.page-sub{margin-top:18px;font-size:17px;color:var(--muted);max-width:640px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:6px;background:rgba(23,73,61,.09);
  color:var(--brand-700);font-size:13px;font-weight:600;
}
.stat-card{
  background:var(--brand-900);color:#F7F6F2;
  border-radius:var(--radius-card);padding:28px 26px;
  box-shadow:var(--shadow-2);
}
.stat-card .stat-label{font-size:12.5px;letter-spacing:.08em;color:rgba(247,246,242,.62);}
.stat-item{margin-top:20px;padding-top:20px;border-top:1px solid rgba(247,246,242,.14);}
.stat-item:first-of-type{margin-top:14px;padding-top:0;border-top:0;}
.stat-num{font-family:var(--font-mono);font-size:32px;font-weight:700;line-height:1.1;color:#FFFFFF;}
.stat-num em{font-style:normal;font-size:15px;color:var(--accent);margin-left:4px;font-weight:600;}
.stat-note{font-size:13px;color:rgba(247,246,242,.62);margin-top:6px;}

/* ---------- Section ---------- */
.section{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap;margin-bottom:34px;}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.15rem);font-weight:750;letter-spacing:-.01em;}
.section-head h2::before{content:"";display:block;width:22px;height:2px;background:var(--brand-700);margin-bottom:14px;}
.section-desc{margin-top:10px;font-size:15px;color:var(--muted);max-width:560px;}

/* ---------- Filter bar ---------- */
.filter-bar{display:flex;gap:8px;overflow-x:auto;padding:2px 0 26px;scrollbar-width:none;}
.filter-bar::-webkit-scrollbar{display:none;}

/* ---------- Capability cards ---------- */
.cap-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.cap-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.cap-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D8D3C6;}
.cap-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EDEAE2;}
.cap-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.cap-card:hover .cap-media img{transform:scale(1.03);}
.cap-index{
  position:absolute;top:14px;left:14px;
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:6px;
  background:rgba(15,42,36,.82);color:var(--accent);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
}
.cap-body{padding:24px 26px 26px;}
.cap-body h3{font-size:1.22rem;margin-bottom:10px;}
.cap-body p{
  font-size:15px;color:var(--muted);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.chip-list{display:flex;flex-wrap:wrap;gap:8px;}
.chip-mini{
  font-size:12.5px;font-weight:600;color:var(--brand-700);
  background:rgba(23,73,61,.07);border-radius:999px;padding:4px 11px;
}
.cap-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:20px;padding-top:16px;border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:12.5px;color:var(--muted);
}

/* ---------- Row list ---------- */
.row-list{margin-top:36px;border-top:1px solid var(--line);}
.row-item{
  display:grid;grid-template-columns:76px minmax(0,1fr) auto;gap:20px;align-items:center;
  padding:22px 6px;border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.row-item:hover{background:rgba(255,255,255,.72);}
.row-num{font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;color:var(--brand-500);}
.row-title{font-size:16.5px;font-weight:700;margin-bottom:4px;}
.row-desc{font-size:14px;color:var(--muted);}

/* ---------- Metrics band ---------- */
.metrics-band{
  position:relative;background:var(--brand-900);color:#F7F6F2;
  border-radius:18px;padding:44px 40px;overflow:hidden;
}
.metrics-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;}
.metric-num{font-family:var(--font-mono);font-size:clamp(1.8rem,3.4vw,2.5rem);font-weight:700;line-height:1.1;color:#FFFFFF;}
.metric-label{margin-top:8px;font-size:13px;color:rgba(247,246,242,.64);}

/* ---------- Flow ---------- */
.flow{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin-top:6px;}
.flow::before{content:"";position:absolute;top:7px;left:0;right:0;height:1px;background:var(--line);}
.flow-step{position:relative;padding-top:30px;}
.flow-step::before{
  content:"";position:absolute;top:2px;left:0;width:11px;height:11px;border-radius:50%;
  background:var(--surface);border:2px solid var(--brand-700);
  transition:transform .2s ease,background .2s ease;
}
.flow-step:hover::before{transform:scale(1.18);background:var(--accent);}
.step-num{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--brand-500);}
.flow-step h3{font-size:1.02rem;margin:8px 0;}
.flow-step p{font-size:14px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq{max-width:860px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 2px;font-size:16px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{flex:0 0 auto;width:22px;height:22px;color:var(--brand-700);transition:transform .2s ease;}
.faq-item[open] .faq-icon{transform:rotate(180deg);}
.faq-body{padding:0 2px 22px;max-width:780px;font-size:15px;line-height:1.8;color:var(--muted);}
.faq-foot{margin-top:28px;padding-top:22px;border-top:1px solid var(--line);font-size:14px;color:var(--muted);}
.faq-foot a{color:var(--brand-700);font-weight:600;}
.faq-foot a:hover{color:var(--brand-500);}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  background:var(--brand-900);color:#F7F6F2;
  border-radius:18px;padding:44px 40px;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:
    repeating-linear-gradient(90deg,#F7F6F2 0 1px,transparent 1px 32px),
    repeating-linear-gradient(0deg,#F7F6F2 0 1px,transparent 1px 32px);
}
.cta-copy{position:relative;z-index:1;}
.cta-copy h2{font-size:clamp(1.4rem,2.4vw,1.9rem);color:#FFFFFF;margin-bottom:8px;}
.cta-copy p{font-size:15px;color:rgba(247,246,242,.72);}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;}
.cta-actions .btn-primary{background:var(--accent);color:var(--brand-900);}
.cta-actions .btn-primary:hover{background:#FFFFFF;box-shadow:none;}
.cta-actions .btn-ghost{border-color:rgba(247,246,242,.34);color:#F7F6F2;}
.cta-actions .btn-ghost:hover{background:rgba(247,246,242,.1);border-color:rgba(247,246,242,.62);color:#FFFFFF;}

/* ---------- Footer ---------- */
.site-footer{margin-top:96px;background:var(--brand-900);color:rgba(247,246,242,.72);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;}
.site-footer .brand-text{color:#F7F6F2;}
.site-footer .brand-mark{background:rgba(201,242,77,.16);color:var(--accent);}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(247,246,242,.66);max-width:340px;}
.footer-contact{font-size:13.5px;line-height:1.9;color:rgba(247,246,242,.66);}
.footer-contact strong{display:block;margin-bottom:6px;font-size:13px;letter-spacing:.08em;color:rgba(247,246,242,.9);font-weight:600;}
.footer-col h4{font-size:13px;letter-spacing:.08em;color:#F7F6F2;margin-bottom:16px;font-weight:600;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(247,246,242,.7);}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding:20px 0;border-top:1px solid rgba(247,246,242,.14);
  font-size:13px;color:rgba(247,246,242,.52);font-family:var(--font-mono);
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .cap-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow::before{display:none;}
  .metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .header-inner{flex-wrap:wrap;height:auto;padding:12px 0;gap:12px 18px;}
  .nav-chips{order:3;flex:1 0 100%;padding-bottom:4px;}
  .header-actions{margin-left:auto;}
  .link-plain{display:none;}
  .header-inner .chip{height:34px;}
}
@media (max-width:768px){
  .section{padding:44px 0;}
  .page-hero{padding:20px 0 40px;}
  .metrics-band{padding:32px 24px;}
  .cta-band{padding:32px 24px;}
  .section-head{margin-bottom:26px;}
}
@media (max-width:640px){
  .wrap{padding:0 18px;}
  body{font-size:15.5px;}
  .row-item{grid-template-columns:1fr;gap:8px;padding:20px 2px;}
  .row-action{justify-self:start;}
  .row-list{margin-top:26px;}
  .metrics-grid{grid-template-columns:1fr 1fr;}
  .flow{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .cap-body{padding:20px 20px 22px;}
  .stat-card{padding:22px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .btn{width:auto;}
  .site-footer{margin-top:64px;padding:48px 0 0;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}

/* roulang page: category3 */
:root{
  --brand-900:#0F2A24;
  --brand-700:#17493D;
  --brand-500:#2C6B59;
  --accent:#C9F24D;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --line:#E2DED4;
  --text:#1A1D1C;
  --muted:#5E6663;
  --warn:#B4553A;
  --r-card:14px;
  --r-img:12px;
  --r-ctl:10px;
  --shadow-1:0 1px 2px rgba(20,25,23,.06), 0 12px 28px -18px rgba(20,25,23,.22);
  --shadow-2:0 1px 2px rgba(20,25,23,.08), 0 18px 38px -18px rgba(20,25,23,.30);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:var(--font-sans);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,blockquote,dl,dd{margin:0}
h1,h2,h3,h4{color:var(--text);font-family:var(--font-sans);line-height:1.25;font-weight:750}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-500)}
img{max-width:100%;height:auto;display:block;border:0}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.01em}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--brand-500);margin-bottom:14px;
}
.eyebrow::before{content:"";width:8px;height:8px;background:var(--accent);border-radius:2px;display:inline-block}
h2{font-size:clamp(1.55rem,2.6vw,2.3rem);letter-spacing:-.012em}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16.5px;max-width:640px}
.rule{width:40px;height:2px;background:var(--brand-700);border-radius:2px;margin:18px 0 0}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(247,246,242,.94);
  backdrop-filter:saturate(120%) blur(6px);
  border-bottom:1px solid transparent;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);background:var(--surface);box-shadow:0 1px 0 rgba(20,25,23,.03)}
.header-inner{display:flex;align-items:center;gap:20px;height:76px}
.brand{display:inline-flex;align-items:center;gap:9px;color:var(--text);font-weight:800;font-size:18px;letter-spacing:-.01em}
.brand:hover{color:var(--text)}
.brand-mark{
  width:30px;height:30px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-700);color:var(--accent);flex:0 0 auto;
}
.brand-text{white-space:nowrap}
.nav-chips{display:flex;align-items:center;gap:6px;margin-left:8px;overflow-x:auto;scrollbar-width:none}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 15px;border-radius:999px;
  border:1px solid var(--line);background:transparent;color:var(--muted);
  font-size:13.5px;font-weight:600;white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.chip:hover{background:#F0EFE9;color:var(--brand-700);border-color:#D9D4C8}
.chip.is-active{background:var(--brand-700);border-color:var(--brand-700);color:#F7F6F2}
.chip.is-active:hover{background:var(--brand-900);color:#F7F6F2}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:16px}
.link-quiet{
  font-size:13.5px;font-weight:600;color:var(--text);
  border-bottom:1px solid transparent;padding-bottom:2px;transition:color .18s ease,border-color .18s ease;
}
.link-quiet:hover{color:var(--brand-500);border-bottom-color:var(--brand-500)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  align-items:center;justify-content:center;color:var(--brand-700);background:var(--surface);
}
.nav-toggle:hover{background:#F0EFE9}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--surface)}
.mobile-drawer.is-open{display:block}
.mobile-drawer .drawer-inner{padding:14px 24px 22px;display:flex;flex-direction:column;gap:8px}
.mobile-drawer .chip{height:44px;justify-content:flex-start;padding:0 18px;border-radius:10px;font-size:14.5px}
.mobile-drawer .drawer-actions{display:flex;gap:10px;margin-top:10px}
.mobile-drawer .drawer-actions .btn{flex:1 1 0}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-ctl);
  font-size:14.5px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn svg{transition:transform .18s ease}
.btn:hover svg{transform:translateX(4px)}
.btn-primary{background:var(--brand-700);color:#F7F6F2;box-shadow:0 1px 2px rgba(20,25,23,.10),inset 0 -2px 0 transparent}
.btn-primary:hover{background:var(--brand-900);color:#F7F6F2;box-shadow:inset 0 -2px 0 var(--accent)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand-700);color:var(--brand-700);background:var(--surface)}
.btn-accent{background:var(--accent);color:var(--brand-900);border-color:var(--accent)}
.btn-accent:hover{background:#D8FA6A;color:var(--brand-900)}
.btn-sm{height:40px;padding:0 16px;font-size:13.5px}
.link-arrow{
  display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;color:var(--brand-700);
  border-bottom:1px solid rgba(23,73,61,.35);padding-bottom:2px;
}
.link-arrow:hover{color:var(--brand-500);border-bottom-color:var(--brand-500)}
.link-arrow svg{transition:transform .18s ease}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- Page hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);padding:36px 0 66px}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg, rgba(15,42,36,.055) 0 1px, transparent 1px 32px),
    repeating-linear-gradient(90deg, rgba(15,42,36,.055) 0 1px, transparent 1px 32px);
}
.page-hero > .wrap{position:relative;z-index:1}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--brand-700)}
.crumbs .sep{color:#B9B4A7}
.crumbs .current{color:var(--text)}
.hero-head{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,.85fr);gap:48px;align-items:start}
h1{
  font-size:clamp(2.1rem,4.6vw,3.5rem);font-weight:800;line-height:1.12;letter-spacing:-.02em;
  margin-bottom:18px;
}
.hero-lede{font-size:17px;color:var(--muted);max-width:640px;line-height:1.8}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 13px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);color:var(--brand-700);
  font-size:13px;font-weight:600;
}
.tag--soft{background:rgba(23,73,61,.09);border-color:transparent}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

.stat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow-1);
}
.stat-num{font-family:var(--font-mono);font-size:clamp(2.4rem,4vw,3.2rem);font-weight:700;line-height:1;color:var(--brand-700);letter-spacing:-.02em}
.stat-num span{font-size:1.2rem;color:var(--brand-500);margin-left:4px}
.stat-cap{font-size:13px;color:var(--muted);margin-top:10px;letter-spacing:.02em}
.stat-divider{height:1px;background:var(--line);margin:20px 0 16px}
.stat-list li{display:flex;align-items:baseline;gap:10px;font-size:13.5px;color:var(--muted);padding:6px 0}
.stat-list .mono{color:var(--text);font-weight:600;font-size:14px}

/* ---------- Filter bar ---------- */
.filter-bar{border-bottom:1px solid var(--line);background:var(--surface)}
.filter-inner{display:flex;align-items:center;gap:10px;height:64px;overflow-x:auto;scrollbar-width:none}
.filter-inner::-webkit-scrollbar{display:none}
.filter-label{font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--muted);white-space:nowrap;margin-right:6px}

/* ---------- Scenes ---------- */
.scene-list{display:flex;flex-direction:column}
.scene{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:52px;align-items:center;
  padding:52px 0;border-bottom:1px solid var(--line);
}
.scene:first-child{padding-top:8px}
.scene:last-child{border-bottom:0;padding-bottom:8px}
.scene--rev .scene-media{order:2}
.scene-media{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--shadow-1)}
.scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s ease}
.scene-media:hover img{transform:scale(1.03)}
.scene-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(15,42,36,.08);border-radius:var(--r-img);
}
.scene-body h3{font-size:clamp(1.2rem,2vw,1.45rem);margin:12px 0 12px;letter-spacing:-.01em}
.scene-index{font-family:var(--font-mono);font-size:13px;color:var(--brand-500);letter-spacing:.14em}
.scene-body p{color:var(--muted);font-size:15.8px;line-height:1.8}
.check-list{margin:18px 0 22px;display:flex;flex-direction:column;gap:10px}
.check-list li{position:relative;padding-left:26px;font-size:14.6px;color:var(--text);line-height:1.7}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:12px;border-radius:3px;
  background:rgba(23,73,61,.12);border:1px solid rgba(23,73,61,.28);
}
.check-list li::after{
  content:"";position:absolute;left:3px;top:12px;width:5px;height:2px;background:var(--brand-700);
  border-radius:1px;
}

/* ---------- Scene grid cards ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.mini-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;height:100%;
}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D5D0C3}
.mini-card h3{font-size:1.05rem;margin:14px 0 10px;line-height:1.45}
.mini-card p{font-size:14.4px;color:var(--muted);line-height:1.75;flex:1 1 auto}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;
  background:rgba(23,73,61,.10);color:var(--brand-700);font-size:12.5px;font-weight:600;
  letter-spacing:.02em;align-self:flex-start;
}
.mini-card .meta{margin-top:16px;font-family:var(--font-mono);font-size:12.5px;color:var(--muted)}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;position:relative}
.steps::before{content:"";position:absolute;left:0;right:0;top:9px;height:1px;background:var(--line)}
.step{position:relative;padding-top:34px}
.step::before{
  content:"";position:absolute;left:0;top:4px;width:11px;height:11px;border-radius:50%;
  background:var(--surface);border:2px solid var(--brand-700);transition:transform .2s ease;
}
.step:hover::before{transform:scale(1.18)}
.step-no{font-family:var(--font-mono);font-size:12.5px;color:var(--brand-500);letter-spacing:.12em;display:block;margin-bottom:8px}
.step h3{font-size:1.05rem;margin-bottom:8px}
.step p{font-size:14.4px;color:var(--muted);line-height:1.75}

/* ---------- Evidence band ---------- */
.band{
  background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.band-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding:44px 0}
.band-item .num{font-family:var(--font-mono);font-size:clamp(1.9rem,3.2vw,2.6rem);font-weight:700;color:var(--brand-700);line-height:1}
.band-item .cap{font-size:13.5px;color:var(--muted);margin-top:10px;line-height:1.7}

/* ---------- FAQ ---------- */
.faq{max-width:820px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 0;cursor:pointer;font-size:16px;font-weight:600;color:var(--text);list-style:none;
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-700)}
.faq-plus{position:relative;width:16px;height:16px;flex:0 0 auto}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;background:var(--brand-700);border-radius:2px;transition:transform .2s ease,opacity .2s ease;
}
.faq-plus::before{left:0;top:7px;width:16px;height:2px}
.faq-plus::after{left:7px;top:0;width:2px;height:16px}
.faq-item[open] .faq-plus::after{transform:rotate(90deg);opacity:0}
.faq-body{padding:0 0 22px;font-size:15px;color:var(--muted);line-height:1.85;max-width:760px}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 96px}
.cta-inner{
  position:relative;overflow:hidden;background:var(--brand-900);border-radius:18px;
  padding:48px;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);
  gap:32px;align-items:center;color:#F7F6F2;
}
.cta-inner::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg, rgba(247,246,242,.10) 0 1px, transparent 1px 32px),
    repeating-linear-gradient(90deg, rgba(247,246,242,.10) 0 1px, transparent 1px 32px);
  opacity:.35;
}
.cta-inner > *{position:relative;z-index:1}
.cta-inner h2{color:#F7F6F2;font-size:clamp(1.4rem,2.4vw,2rem);margin-bottom:12px}
.cta-inner p{color:rgba(247,246,242,.78);font-size:15.5px;max-width:560px}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:stretch}
.cta-actions .btn{width:100%}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(247,246,242,.72);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));gap:40px}
.site-footer .brand{color:#F7F6F2;font-size:17px}
.site-footer .brand:hover{color:#F7F6F2}
.site-footer .brand-mark{background:rgba(247,246,242,.12);color:var(--accent)}
.footer-desc{font-size:13.8px;line-height:1.8;color:rgba(247,246,242,.68);margin-top:16px;max-width:360px}
.footer-contact{font-size:13px;line-height:1.9;color:rgba(247,246,242,.68)}
.footer-contact strong{display:block;color:#F7F6F2;font-size:13px;letter-spacing:.06em;margin-bottom:6px;font-weight:600}
.footer-col h4{font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:rgba(247,246,242,.55);font-weight:600;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:13.8px;color:rgba(247,246,242,.78);transition:color .18s ease}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(247,246,242,.14);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:12.8px;color:rgba(247,246,242,.55);letter-spacing:.02em;
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .nav-chips{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions{margin-left:auto;gap:12px}
  .header-actions .link-quiet{display:none}
  .hero-head{grid-template-columns:minmax(0,1fr);gap:32px}
  .stat-card{max-width:520px}
  .scene{grid-template-columns:minmax(0,1fr);gap:28px;padding:40px 0}
  .scene--rev .scene-media{order:0}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:32px}
  .steps::before{display:none}
  .step{padding-top:0;padding-left:26px}
  .step::before{top:6px}
  .band-grid{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:28px;padding:36px 0}
  .cta-inner{grid-template-columns:minmax(0,1fr);padding:36px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .section{padding:72px 0}
}
@media (max-width:768px){
  .header-inner{height:64px;gap:12px}
  .brand{font-size:16.5px}
  .brand-mark{width:28px;height:28px}
  .header-actions .btn{height:38px;padding:0 14px;font-size:13px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  h2{letter-spacing:-.008em}
  .cta-band{padding-bottom:56px}
}
@media (max-width:640px){
  .wrap{padding:0 16px}
  .page-hero{padding:24px 0 44px}
  h1{font-size:clamp(1.85rem,7.4vw,2.4rem);line-height:1.2}
  .hero-lede{font-size:15.6px}
  .grid-4,.grid-3,.steps,.band-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .cta-inner{padding:28px 22px;border-radius:14px}
  .cta-actions{flex-direction:column}
  .scene-body p,.mini-card p,.step p{font-size:14.6px}
  .faq-item summary{font-size:15.2px;padding:18px 0}
  .filter-inner{height:56px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --brand-900:#0F2A24;
  --brand-700:#17493D;
  --brand-500:#2C6B59;
  --accent:#C9F24D;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --line:#E2DED4;
  --text:#1A1D1C;
  --muted:#5E6663;
  --warn:#B4553A;
  --r-lg:16px;
  --r-md:14px;
  --r-sm:10px;
  --shadow-1:0 1px 2px rgba(20,25,23,.06);
  --shadow-2:0 1px 2px rgba(20,25,23,.06),0 12px 28px -18px rgba(20,25,23,.22);
  --shadow-3:0 2px 4px rgba(20,25,23,.08),0 18px 36px -20px rgba(20,25,23,.3);
  --wrap:1200px;
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}
img{display:block;max-width:100%;height:auto;border:0;}
a{color:var(--brand-500);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-900);}
h1,h2,h3,h4,h5,h6{margin:0 0 .5em;padding:0;color:var(--text);font-family:var(--font);font-weight:700;line-height:1.25;letter-spacing:-.01em;}
h1{font-size:clamp(1.9rem,4vw,2.95rem);font-weight:800;line-height:1.14;letter-spacing:-.02em;}
h2{font-size:clamp(1.45rem,2.4vw,2.1rem);font-weight:750;}
h3{font-size:1.15rem;font-weight:700;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;}
svg{display:block;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(247,246,242,.94);border-bottom:1px solid transparent;transition:background .22s ease,border-color .22s ease,box-shadow .22s ease;}
.site-header.is-scrolled{background:var(--surface);border-bottom-color:var(--line);box-shadow:var(--shadow-1);}
.header-inner{display:flex;align-items:center;gap:20px;height:76px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-size:18px;font-weight:800;letter-spacing:-.01em;flex:0 0 auto;}
.brand:hover{color:var(--text);}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:9px;background:var(--brand-700);color:var(--accent);flex:0 0 30px;}
.brand-text{white-space:nowrap;}
.nav-chips{display:flex;align-items:center;gap:6px;margin-left:6px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{display:inline-flex;align-items:center;justify-content:center;height:34px;padding:0 15px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--muted);font-size:13.5px;font-weight:600;line-height:1;white-space:nowrap;cursor:pointer;transition:background .18s ease,color .18s ease,border-color .18s ease;}
.chip:hover{background:#EFEDE6;color:var(--brand-700);border-color:#D7D2C6;}
.chip.is-active{background:var(--brand-700);border-color:var(--brand-700);color:#F7F6F2;}
.chip.is-active:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.link-underline{font-size:13.5px;font-weight:600;color:var(--text);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;text-decoration-color:#CFCABE;}
.link-underline:hover{color:var(--brand-500);text-decoration-color:var(--brand-500);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--r-sm);border:1px solid transparent;font-size:14.5px;font-weight:600;line-height:1;cursor:pointer;transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;}
.btn-primary{background:var(--brand-700);color:#F7F6F2;}
.btn-primary:hover{background:var(--brand-900);color:#fff;box-shadow:inset 0 -2px 0 var(--accent);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{border-color:var(--brand-700);color:var(--brand-700);background:var(--surface);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;padding:0;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);color:var(--text);cursor:pointer;transition:border-color .18s ease,color .18s ease;}
.nav-toggle:hover{border-color:var(--brand-700);color:var(--brand-700);}
.mobile-panel{display:none;position:fixed;left:0;right:0;top:64px;z-index:59;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow-3);padding:14px 16px 22px;max-height:calc(100vh - 64px);overflow-y:auto;}
.mobile-panel .m-chip{display:block;padding:13px 14px;border-radius:var(--r-sm);font-size:15px;font-weight:600;color:var(--text);border:1px solid transparent;}
.mobile-panel .m-chip:hover{background:#F2F0E9;color:var(--brand-700);}
.mobile-panel .m-chip.is-active{background:var(--brand-700);color:#F7F6F2;}
.mobile-panel .m-actions{display:grid;gap:10px;margin-top:16px;padding-top:16px;border-top:1px solid var(--line);}

/* ---------- page hero ---------- */
.page-hero{position:relative;padding:40px 0 56px;border-bottom:1px solid var(--line);background-image:linear-gradient(180deg,rgba(247,246,242,.95),rgba(247,246,242,.99)),url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center;background-repeat:no-repeat;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:6px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand-700);}
.breadcrumb .sep{color:#C6C1B5;}
.breadcrumb [aria-current]{color:var(--text);}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 288px;gap:52px;align-items:end;margin-top:26px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 14px;font-family:var(--mono);font-size:12.5px;letter-spacing:.06em;color:var(--brand-700);}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--accent);}
.hero-lead{margin:16px 0 0;max-width:640px;font-size:clamp(1rem,1.35vw,1.08rem);line-height:1.8;color:var(--muted);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 13px;border-radius:999px;border:1px solid var(--line);background:var(--surface);font-size:13px;color:var(--muted);}
.tag::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--brand-700);flex:0 0 6px;}
.hero-stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:24px;box-shadow:var(--shadow-2);}
.stat-label{font-size:13px;letter-spacing:.02em;color:var(--muted);}
.stat-num{font-family:var(--mono);font-size:52px;font-weight:600;line-height:1;letter-spacing:-.04em;color:var(--brand-700);margin:12px 0 18px;}
.stat-num span{font-size:.34em;letter-spacing:0;color:var(--muted);margin-left:6px;}
.stat-rows{border-top:1px solid var(--line);padding-top:14px;display:grid;gap:9px;}
.stat-rows div{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--muted);}
.stat-rows b{font-family:var(--mono);font-weight:600;color:var(--text);}

/* ---------- sections ---------- */
.section{padding:84px 0;}
.section-tight{padding:0 0 84px;}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:38px;flex-wrap:wrap;}
.section-head h2{position:relative;padding-top:16px;margin:0;}
.section-head h2::before{content:"";position:absolute;top:0;left:0;width:24px;height:2px;background:var(--brand-700);}
.section-desc{margin:10px 0 0;max-width:660px;font-size:15px;line-height:1.8;color:var(--muted);}

/* ---------- filter ---------- */
.filter-bar{display:flex;align-items:center;gap:8px;overflow-x:auto;padding:0 0 26px;margin-bottom:8px;border-bottom:1px solid var(--line);scrollbar-width:none;}
.filter-bar::-webkit-scrollbar{display:none;}
.filter-note{margin:0 0 30px;font-size:13px;color:var(--muted);}

/* ---------- timeline ---------- */
.timeline{list-style:none;margin:0;padding:0;}
.tl-item{position:relative;padding-left:190px;padding-bottom:40px;transition:opacity .2s ease;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{content:"";position:absolute;left:150px;top:20px;bottom:0;width:1px;background:var(--line);}
.tl-item:last-child::before{display:none;}
.tl-date-text{position:absolute;left:0;top:8px;width:126px;text-align:right;font-family:var(--mono);font-size:13.5px;letter-spacing:.01em;color:var(--muted);}
.tl-dot{position:absolute;left:145px;top:13px;width:11px;height:11px;border-radius:50%;background:var(--surface);border:2px solid var(--brand-700);transition:transform .2s ease,background .2s ease;}
.tl-item:hover .tl-dot{transform:scale(1.18);background:var(--accent);}
.tl-body{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:24px 26px;box-shadow:var(--shadow-2);transition:transform .2s ease,box-shadow .2s ease;}
.tl-item:hover .tl-body{transform:translateY(-2px);box-shadow:var(--shadow-3);}
.tl-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px;}
.badge-ver{font-family:var(--mono);font-size:12.5px;font-weight:600;letter-spacing:.02em;padding:4px 10px;border-radius:6px;background:rgba(23,73,61,.1);color:var(--brand-700);}
.badge-type{font-size:12.5px;padding:3px 10px;border-radius:6px;border:1px solid var(--line);background:#FBFAF6;color:var(--muted);}
.tl-body h3{margin:0 0 8px;font-size:1.12rem;}
.tl-body p{margin:0 0 14px;font-size:15px;line-height:1.78;color:var(--muted);}
.tl-link{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--brand-700);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;text-decoration-color:rgba(23,73,61,.32);}
.tl-link:hover{color:var(--brand-500);text-decoration-color:var(--brand-500);}
.tl-link svg{transition:transform .18s ease;}
.tl-link:hover svg{transform:translateX(4px);}
.is-hidden{display:none !important;}

/* ---------- stat cards ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.stat-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:28px;box-shadow:var(--shadow-2);transition:transform .2s ease,box-shadow .2s ease;}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-3);}
.stat-card .num{font-family:var(--mono);font-size:clamp(2rem,3.4vw,2.9rem);font-weight:600;line-height:1;letter-spacing:-.03em;color:var(--brand-700);}
.stat-card .num span{font-size:.4em;letter-spacing:0;color:var(--muted);margin-left:6px;}
.stat-card h3{margin:16px 0 8px;font-size:1.05rem;}
.stat-card p{margin:0;font-size:14.5px;line-height:1.78;color:var(--muted);}

/* ---------- release feature ---------- */
.release-card{display:grid;grid-template-columns:1.02fr .98fr;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--surface);box-shadow:var(--shadow-2);}
.release-media{position:relative;min-height:320px;background:var(--brand-900);}
.release-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.release-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,42,36,.15),rgba(15,42,36,.55));}
.release-media .media-tag{position:absolute;left:22px;bottom:22px;z-index:2;display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12.5px;letter-spacing:.04em;color:#F7F6F2;background:rgba(15,42,36,.62);border:1px solid rgba(247,246,242,.28);padding:7px 12px;border-radius:999px;}
.release-body{padding:38px 38px 36px;}
.release-body h2{margin:0 0 14px;font-size:clamp(1.3rem,2vw,1.7rem);}
.release-body > p{margin:0 0 20px;font-size:15px;line-height:1.8;color:var(--muted);}
.spec-list{display:grid;gap:0;border-top:1px solid var(--line);margin-bottom:26px;}
.spec-list li{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--muted);}
.spec-list li b{font-family:var(--mono);font-weight:600;color:var(--text);text-align:right;}
.release-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.flow-item{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:26px 24px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.flow-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D5D0C4;}
.flow-item .idx{display:inline-flex;align-items:center;gap:9px;margin-bottom:14px;font-family:var(--mono);font-size:12.5px;letter-spacing:.06em;color:var(--brand-700);}
.flow-item .idx::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--accent);}
.flow-item h3{margin:0 0 8px;font-size:1.05rem;}
.flow-item p{margin:0;font-size:14.5px;line-height:1.78;color:var(--muted);}

/* ---------- faq ---------- */
.faq{max-width:860px;border-top:1px solid var(--line);}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:21px 2px;list-style:none;cursor:pointer;font-size:16px;font-weight:600;color:var(--text);transition:color .18s ease;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--brand-700);}
.faq summary .ico{position:relative;flex:0 0 22px;width:22px;height:22px;border-radius:50%;border:1px solid var(--line);background:var(--surface);transition:background .2s ease,border-color .2s ease,transform .2s ease;}
.faq summary .ico::before,.faq summary .ico::after{content:"";position:absolute;background:var(--brand-700);border-radius:1px;transition:opacity .2s ease,background .2s ease;}
.faq summary .ico::before{left:5.5px;right:5.5px;top:10px;height:1.5px;}
.faq summary .ico::after{top:5.5px;bottom:5.5px;left:10px;width:1.5px;}
.faq details[open] summary .ico{background:var(--brand-700);border-color:var(--brand-700);}
.faq details[open] summary .ico::before{background:var(--accent);}
.faq details[open] summary .ico::after{opacity:0;}
.faq .answer{padding:0 2px 24px;max-width:800px;font-size:15px;line-height:1.85;color:var(--muted);}
.faq-foot{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:30px;padding-top:26px;border-top:1px solid var(--line);font-size:14px;color:var(--muted);}

/* ---------- cta ---------- */
.cta-wrap{padding:0 0 0;}
.cta-band{position:relative;overflow:hidden;border-radius:18px;background:var(--brand-900);color:#F7F6F2;padding:44px 46px;}
.cta-band::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:repeating-linear-gradient(0deg,rgba(247,246,242,.07) 0 1px,transparent 1px 32px),repeating-linear-gradient(90deg,rgba(247,246,242,.07) 0 1px,transparent 1px 32px);opacity:.6;}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band h2{margin:0 0 8px;color:#fff;font-size:clamp(1.3rem,2vw,1.75rem);}
.cta-band p{margin:0;font-size:14.5px;line-height:1.8;color:rgba(247,246,242,.74);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-band .btn-primary{background:var(--accent);color:var(--brand-900);}
.cta-band .btn-primary:hover{background:#fff;color:var(--brand-900);box-shadow:inset 0 -2px 0 rgba(15,42,36,.18);}
.cta-band .btn-ghost{border-color:rgba(247,246,242,.3);color:#F7F6F2;}
.cta-band .btn-ghost:hover{background:rgba(247,246,242,.08);border-color:rgba(247,246,242,.6);color:#fff;}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(247,246,242,.72);padding:64px 0 0;margin-top:84px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand{color:#F7F6F2;font-size:18px;}
.footer-brand .brand:hover{color:#fff;}
.footer-brand .brand-mark{background:rgba(247,246,242,.12);color:var(--accent);}
.footer-desc{margin:16px 0 0;max-width:330px;font-size:14px;line-height:1.85;color:rgba(247,246,242,.66);}
.footer-contact{font-size:13.5px;line-height:1.95;color:rgba(247,246,242,.6);}
.footer-contact strong{display:block;margin-bottom:6px;font-size:12.5px;letter-spacing:.08em;color:#F7F6F2;font-weight:600;}
.footer-col h4{margin:0 0 16px;font-size:12.5px;font-weight:600;letter-spacing:.08em;color:#F7F6F2;text-transform:uppercase;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li:last-child{margin-bottom:0;}
.footer-col a{font-size:14px;color:rgba(247,246,242,.72);}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;padding:20px 0 30px;border-top:1px solid rgba(247,246,242,.14);font-size:13px;color:rgba(247,246,242,.55);}

/* ---------- entrance ---------- */
@keyframes riseIn{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:none;}}
.hero-copy .breadcrumb{animation:riseIn .5s ease both;}
.hero-copy .eyebrow{animation:riseIn .5s ease .06s both;}
.hero-copy h1{animation:riseIn .55s ease .12s both;}
.hero-copy .hero-lead{animation:riseIn .55s ease .18s both;}
.hero-copy .tag-row{animation:riseIn .55s ease .24s both;}
.hero-stat{animation:riseIn .6s ease .2s both;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .hero-grid{gap:36px;grid-template-columns:minmax(0,1fr) 264px;}
}
@media (max-width:1023px){
  .header-inner{height:64px;gap:14px;}
  .nav-chips{display:none;}
  .header-actions .link-underline{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-panel.is-open{display:block;}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:30px;align-items:start;}
  .hero-stat{max-width:420px;}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .release-card{grid-template-columns:1fr;}
  .release-media{min-height:260px;}
  .release-body{padding:30px 26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:64px 0;}
}
@media (max-width:760px){
  .page-hero{padding:28px 0 44px;}
  .hero-grid{margin-top:20px;}
  .tl-item{padding-left:26px;padding-bottom:30px;}
  .tl-item::before{left:0;top:22px;}
  .tl-dot{left:-5px;top:16px;}
  .tl-date-text{position:static;display:block;width:auto;text-align:left;margin-bottom:10px;font-size:12.5px;}
  .tl-body{padding:20px 18px;}
  .stat-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .cta-band{padding:32px 24px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px;}
  .footer-desc{max-width:none;}
  .site-footer{margin-top:56px;padding-top:48px;}
}
@media (max-width:520px){
  .wrap{padding:0 16px;}
  .brand-text{font-size:16.5px;}
  .btn{height:44px;padding:0 18px;}
  .btn-sm{height:40px;}
  .section{padding:52px 0;}
  .section-tight{padding:0 0 52px;}
  .filter-bar{padding-bottom:20px;}
  .stat-num{font-size:44px;}
  .release-actions .btn{width:100%;}
  .spec-list li{flex-direction:column;gap:4px;align-items:flex-start;}
  .spec-list li b{text-align:left;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category4 */
:root{
  --brand-900:#0F2A24;
  --brand-700:#17493D;
  --brand-500:#2C6B59;
  --accent:#C9F24D;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --line:#E2DED4;
  --text:#1A1D1C;
  --muted:#5E6663;
  --warn:#B4553A;
  --radius:14px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow:0 1px 2px rgba(20,25,23,.06),0 12px 28px -18px rgba(20,25,23,.22);
  --shadow-hover:0 2px 4px rgba(20,25,23,.08),0 18px 38px -20px rgba(20,25,23,.30);
  --mono:ui-monospace,"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-500);}
img{max-width:100%;display:block;height:auto;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;}
::selection{background:var(--accent);color:var(--brand-900);}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--brand-500);
  margin-bottom:14px;
}
.section-title{
  font-size:clamp(1.55rem,2.6vw,2.3rem);
  line-height:1.25;
  font-weight:750;
  letter-spacing:-.01em;
  position:relative;
  padding-left:18px;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;top:.55em;
  width:6px;height:20px;
  background:var(--brand-700);
  border-radius:2px;
}
.section-sub{margin-top:14px;color:var(--muted);font-size:16px;max-width:680px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.92);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{
  background:var(--surface);
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px -18px rgba(20,25,23,.5);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:76px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  background:var(--brand-700);color:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--text);}
.brand:hover .brand-text{color:var(--brand-700);}
.nav-chips{display:flex;align-items:center;gap:4px;flex:1;overflow-x:auto;scrollbar-width:none;}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 15px;
  border-radius:999px;font-size:14px;color:var(--muted);
  border:1px solid transparent;white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.chip:hover{background:#EDEAE2;color:var(--text);}
.chip.is-active{background:var(--brand-700);color:#F7F6F2;border-color:var(--brand-700);}
.chip.is-active:hover{color:#F7F6F2;}
.header-actions{display:flex;align-items:center;gap:18px;flex-shrink:0;}
.link-quiet{
  font-size:14px;color:var(--text);
  border-bottom:1px solid transparent;padding-bottom:1px;
}
.link-quiet:hover{border-bottom-color:var(--brand-500);color:var(--brand-500);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand-700);color:#F7F6F2;border-bottom:2px solid transparent;}
.btn-primary:hover{background:var(--brand-900);color:#F7F6F2;border-bottom-color:var(--accent);}
.btn-primary .arrow{transition:transform .18s ease;}
.btn-primary:hover .arrow{transform:translateX(4px);}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text);}
.btn-ghost:hover{border-color:var(--brand-700);color:var(--brand-700);}
.btn-light{background:#F7F6F2;color:var(--brand-900);border-bottom:2px solid transparent;}
.btn-light:hover{background:var(--accent);color:var(--brand-900);border-bottom-color:var(--brand-900);}
.btn-outline-light{background:transparent;border:1px solid rgba(247,246,242,.42);color:#F7F6F2;}
.btn-outline-light:hover{border-color:var(--accent);color:var(--accent);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  background:var(--surface);border-radius:var(--radius-sm);
  align-items:center;justify-content:center;color:var(--text);cursor:pointer;
}
.mobile-nav{display:none;border-top:1px solid var(--line);background:var(--surface);padding:16px 0 22px;}
.mobile-nav .chip{display:flex;width:100%;height:44px;justify-content:flex-start;border-radius:10px;}
.mobile-nav .m-actions{display:flex;gap:12px;margin-top:16px;}
.mobile-nav .m-actions .btn{flex:1;}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);
  padding:26px 0 16px;flex-wrap:wrap;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand-700);}
.breadcrumb .sep{color:#B9B4A7;}
.breadcrumb .current{color:var(--text);}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;
  padding-bottom:64px;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(to right,rgba(20,25,23,.05) 0 1px,transparent 1px 32px),
    repeating-linear-gradient(to bottom,rgba(20,25,23,.05) 0 1px,transparent 1px 32px);
  opacity:.045;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 78%);
}
.hero-grid{
  position:relative;
  display:grid;grid-template-columns:1fr 380px;gap:48px;align-items:start;
}
.page-hero h1{
  font-size:clamp(2rem,4vw,3.1rem);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.02em;
  margin-bottom:20px;
}
.page-hero .lead{
  font-size:17px;color:var(--muted);max-width:600px;line-height:1.8;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 13px;
  font-size:13px;border-radius:999px;
  background:rgba(23,73,61,.08);color:var(--brand-700);
  border:1px solid rgba(23,73,61,.14);
}
.hero-side{display:flex;flex-direction:column;gap:18px;}
.hero-figure{position:relative;border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow);}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-figure .fig-badge{
  position:absolute;left:14px;bottom:14px;
  background:rgba(15,42,36,.86);color:#F7F6F2;
  font-family:var(--mono);font-size:12px;letter-spacing:.06em;
  padding:6px 12px;border-radius:8px;
}
.stat-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow);
  display:flex;align-items:center;gap:18px;
}
.stat-num{
  font-family:var(--mono);font-size:40px;font-weight:700;
  line-height:1;color:var(--brand-700);letter-spacing:-.03em;
}
.stat-num::after{content:"";display:block;width:18px;height:3px;background:var(--accent);margin-top:8px;border-radius:2px;}
.stat-card p{font-size:13px;color:var(--muted);line-height:1.6;}

/* ---------- Search band ---------- */
.search-band{position:relative;margin-top:44px;}
.search-shell{
  display:flex;align-items:center;gap:12px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);min-height:56px;
  padding:6px 6px 6px 18px;box-shadow:var(--shadow);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-shell:focus-within{border-color:var(--brand-700);box-shadow:0 0 0 3px rgba(201,242,77,.45);}
.search-shell .ico{color:var(--muted);flex-shrink:0;display:flex;}
.search-shell input{
  flex:1;border:0;background:transparent;outline:none;
  height:44px;color:var(--text);font-size:15px;min-width:0;
}
.search-shell input::placeholder{color:#9AA19D;}
.search-hint{margin-top:12px;font-size:13px;color:var(--muted);}
.search-hint a{color:var(--brand-700);border-bottom:1px solid rgba(23,73,61,.35);}

/* ---------- Issue grid ---------- */
.issue-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.issue-card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px;
  box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  min-height:186px;
}
.issue-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D5D0C3;}
.issue-card .ico-box{
  width:38px;height:38px;border-radius:10px;
  background:rgba(23,73,61,.08);color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;
}
.issue-card h3{font-size:16px;font-weight:700;line-height:1.5;}
.issue-card p{font-size:14px;color:var(--muted);line-height:1.75;flex:1;}
.issue-card .card-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--brand-700);font-weight:600;
}
.issue-card .card-link .arrow{transition:transform .18s ease;}
.issue-card:hover .card-link .arrow{transform:translateX(4px);}

/* ---------- Steps ---------- */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);gap:26px;
  border-top:1px solid var(--line);padding-top:34px;
}
.step{position:relative;padding-top:26px;}
.step::before{
  content:"";position:absolute;left:0;top:-40px;
  width:10px;height:10px;border-radius:50%;
  background:var(--brand-700);
  box-shadow:0 0 0 4px rgba(201,242,77,.55);
}
.step .num{
  font-family:var(--mono);font-size:13px;letter-spacing:.1em;
  color:var(--brand-500);display:block;margin-bottom:8px;
}
.step h3{font-size:16px;font-weight:700;margin-bottom:8px;}
.step p{font-size:14px;color:var(--muted);line-height:1.75;}

/* ---------- Channel list ---------- */
.channel-list{border-top:1px solid var(--line);}
.channel-row{
  display:grid;grid-template-columns:240px 1fr auto;gap:28px;align-items:center;
  padding:26px 0;border-bottom:1px solid var(--line);
  transition:background .18s ease;
}
.channel-row:hover{background:rgba(255,255,255,.7);}
.channel-row h3{font-size:16px;font-weight:700;display:flex;align-items:center;gap:10px;}
.channel-row h3 .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex-shrink:0;}
.channel-row p{font-size:14px;color:var(--muted);line-height:1.7;}
.channel-row .go{
  font-size:14px;font-weight:600;color:var(--brand-700);
  display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
}
.channel-row .go .arrow{transition:transform .18s ease;}
.channel-row:hover .go .arrow{transform:translateX(4px);}

/* ---------- FAQ ---------- */
.faq{max-width:820px;border-top:1px solid var(--line);}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;line-height:1.5;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--brand-700);}
.faq summary .plus{
  flex-shrink:0;width:22px;height:22px;color:var(--brand-700);
  transition:transform .2s ease;display:flex;align-items:center;justify-content:center;
}
.faq details[open] summary .plus{transform:rotate(180deg);}
.faq .answer{padding:0 0 24px;font-size:15px;color:var(--muted);line-height:1.85;max-width:720px;}
.faq .answer p+p{margin-top:10px;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand-900);color:#F7F6F2;
  border-radius:18px;padding:48px;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(to right,rgba(247,246,242,.16) 0 1px,transparent 1px 32px),
    repeating-linear-gradient(to bottom,rgba(247,246,242,.16) 0 1px,transparent 1px 32px);
  opacity:.05;
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(1.4rem,2.4vw,2rem);font-weight:750;line-height:1.3;letter-spacing:-.01em;}
.cta-inner p{margin-top:12px;font-size:15px;color:rgba(247,246,242,.74);max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(247,246,242,.72);margin-top:88px;padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text{color:#F7F6F2;}
.footer-brand .brand-mark{background:rgba(247,246,242,.12);color:var(--accent);}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(247,246,242,.66);max-width:320px;}
.footer-contact{font-size:13px;line-height:1.9;color:rgba(247,246,242,.6);}
.footer-contact strong{display:block;color:rgba(247,246,242,.85);font-size:13px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:6px;}
.footer-col h4{
  font-size:13px;letter-spacing:.08em;text-transform:uppercase;
  color:rgba(247,246,242,.9);margin-bottom:16px;font-weight:700;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:rgba(247,246,242,.66);}
.footer-col ul li a:hover{color:var(--accent);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(247,246,242,.14);
  font-size:13px;color:rgba(247,246,242,.55);
  font-family:var(--mono);
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .5s ease,transform .5s ease;}
.reveal.is-visible{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .header-inner{height:68px;gap:16px;}
  .nav-chips{display:none;}
  .header-actions .link-quiet{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .header-actions{margin-left:0;}
  .mobile-nav.is-open{display:block;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-side{flex-direction:row;align-items:stretch;}
  .hero-figure{flex:1.4;}
  .stat-card{flex:1;}
  .issue-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px;}
  .channel-row{grid-template-columns:1fr auto;gap:10px 24px;}
  .channel-row p{grid-column:1 / 2;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767px){
  .wrap{padding:0 18px;}
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .page-hero{padding-bottom:44px;}
  .page-hero h1{font-size:clamp(1.7rem,7vw,2.2rem);}
  .hero-side{flex-direction:column;}
  .stat-card{padding:18px 20px;}
  .stat-num{font-size:34px;}
  .search-shell{padding:5px 5px 5px 14px;}
  .search-shell input{font-size:15px;}
  .issue-grid{grid-template-columns:1fr;}
  .issue-card{min-height:0;}
  .steps{grid-template-columns:1fr;gap:0;padding-top:20px;}
  .step{padding:22px 0 0 0;}
  .step::before{top:-5px;}
  .channel-row{grid-template-columns:1fr;gap:8px;padding:20px 0;}
  .channel-row .go{margin-top:4px;}
  .cta-band{padding:32px 22px;border-radius:14px;}
  .cta-inner{gap:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .site-footer{padding:48px 0 22px;margin-top:56px;}
  .footer-bottom{font-size:12px;gap:8px;}
  .faq summary{font-size:15px;padding:18px 0;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
}