/* roulang page: index */
:root{
  --brand:#F2600C;
  --brand-light:#FF7A1A;
  --brand-soft:#FFB347;
  --green:#0F3D33;
  --green-2:#17614F;
  --lime:#C6E85C;
  --ink:#101A16;
  --ink-2:#2C3A34;
  --muted:#5A6B64;
  --line:#E7E1D9;
  --bg:#FFF9F4;
  --bg-alt:#FFF3E9;
  --card:#FFFFFF;
  --grad:linear-gradient(135deg,#FF7A1A 0%,#F2600C 48%,#FFB347 100%);
  --r-10:10px;
  --r-16:16px;
  --r-24:24px;
  --r-32:32px;
  --r-999:999px;
  --shadow-sm:0 2px 8px rgba(16,26,22,.06);
  --shadow-md:0 12px 32px -12px rgba(242,96,12,.18);
  --shadow-lg:0 28px 64px -24px rgba(16,26,22,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-2);
  background:var(--bg);
}
img{max-width:100%;display:block;border-radius:var(--r-16);}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.5px;line-height:1.25;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--ink);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.nums{font-variant-numeric:tabular-nums;font-weight:700;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:transparent;
  transition:background .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-stuck{
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.nav-inner{
  height:72px;display:flex;align-items:center;gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px -8px rgba(242,96,12,.7);
}
.brand-mark svg{width:22px;height:22px;stroke:#fff;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.4px;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.4px;}
.nav-menu{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-link{
  position:relative;font-size:15px;font-weight:600;color:var(--ink-2);
  padding:6px 0;transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:3px;border-radius:var(--r-999);
  background:var(--grad);transition:right .25s var(--ease);
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{right:0;}
.nav-link.is-active{color:var(--brand);font-weight:700;}
.nav-link.is-active::after{right:0;}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-999);background:#fff;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),width .25s var(--ease);
  width:190px;
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(242,96,12,.12);width:220px;}
.nav-search svg{width:16px;height:16px;stroke:var(--muted);flex:0 0 auto;}
.nav-search input{border:none;outline:none;background:transparent;width:100%;font-size:14px;}
.nav-login{font-size:15px;font-weight:600;color:var(--ink-2);padding:8px 4px;}
.nav-login:hover{color:var(--brand);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-999);font-size:15px;font-weight:700;
  padding:12px 24px;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-md);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 38px -14px rgba(242,96,12,.5);}
.btn-primary:active{transform:translateY(-1px);}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line);}
.btn-ghost:hover{border-color:rgba(242,96,12,.45);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-sm);}
.btn-soft{background:var(--bg-alt);color:var(--brand);border:1px solid rgba(242,96,12,.22);}
.btn-soft:hover{background:#fff;border-color:rgba(242,96,12,.45);transform:translateY(-2px);}
.btn-white{background:#fff;color:var(--brand);box-shadow:var(--shadow-sm);}
.btn-white:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}
.nav-cta{padding:11px 20px;font-size:14.5px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;stroke:var(--ink);}
.mobile-drawer{
  position:fixed;inset:0;z-index:120;background:rgba(15,61,51,.55);backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);
}
.mobile-drawer.is-open{opacity:1;visibility:visible;}
.mobile-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(86vw,360px);background:#fff;
  padding:22px 20px 96px;overflow-y:auto;transform:translateX(100%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;gap:6px;
}
.mobile-drawer.is-open .mobile-panel{transform:translateX(0);}
.mobile-group-title{font-size:12.5px;font-weight:700;color:var(--muted);letter-spacing:.6px;margin:16px 0 4px;}
.mobile-link{padding:13px 14px;border-radius:12px;font-size:15.5px;font-weight:600;color:var(--ink-2);}
.mobile-link:hover,.mobile-link:active{background:var(--bg-alt);color:var(--brand);}
.mobile-link.is-active{background:var(--bg-alt);color:var(--brand);}
.mobile-close{
  align-self:flex-end;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
}
.mobile-close svg{width:18px;height:18px;stroke:var(--ink);}
.mobile-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:24px;}
.mobile-foot .btn{width:100%;}

/* ---------- Hero ---------- */
.hero{position:relative;padding:64px 0 88px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(255,179,71,.35),rgba(255,179,71,0) 68%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;position:relative;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-999);padding:7px 15px;font-size:13px;font-weight:600;color:var(--green-2);
  box-shadow:var(--shadow-sm);margin-bottom:20px;
}
.hero-eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(198,232,92,.28);}
.hero h1{font-size:clamp(30px,5vw,52px);line-height:1.18;margin-bottom:18px;}
.hero h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{font-size:17px;color:var(--muted);max-width:520px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;}
.mini-badge{
  display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-999);padding:9px 16px;box-shadow:var(--shadow-sm);
}
.mini-badge svg{width:17px;height:17px;stroke:var(--brand);}
.mini-badge b{font-size:15px;color:var(--ink);font-variant-numeric:tabular-nums;}
.mini-badge span{font-size:13px;color:var(--muted);}
.hero-visual{position:relative;}
.hero-figure{
  position:relative;border-radius:var(--r-24);overflow:hidden;box-shadow:var(--shadow-lg);
  background:var(--green);
}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-24);}
.hero-figure::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-24);
  background:linear-gradient(180deg,rgba(15,61,51,.05),rgba(15,61,51,.42));
}
.float-card{
  position:absolute;background:#fff;border-radius:var(--r-16);box-shadow:var(--shadow-lg);
  padding:14px 18px;display:flex;flex-direction:column;gap:2px;
}
.float-card--stat{left:-18px;bottom:38px;border:1px solid rgba(198,232,92,.85);}
.float-card--stat .num{font-size:26px;color:var(--green);font-variant-numeric:tabular-nums;line-height:1.1;}
.float-card--stat .lbl{font-size:12.5px;color:var(--muted);}
.float-card--info{right:-14px;top:26px;flex-direction:row;align-items:center;gap:10px;max-width:230px;}
.float-card--info svg{width:20px;height:20px;stroke:var(--green-2);flex:0 0 auto;}
.float-card--info p{font-size:13px;color:var(--ink-2);line-height:1.5;}

/* ---------- Section base ---------- */
.section{padding:clamp(56px,8vw,104px) 0;}
.section--alt{background:var(--bg-alt);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:clamp(24px,3.2vw,36px);margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:700;color:var(--brand);
  white-space:nowrap;
}
.text-link svg{width:16px;height:16px;stroke:var(--brand);transition:transform .2s var(--ease);}
.text-link:hover svg{transform:translateX(4px);}

/* ---------- Pain points ---------- */
.pain-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.pain-card{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-16);
  padding:26px 28px;overflow:hidden;display:flex;gap:18px;align-items:flex-start;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.pain-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad);
  transform:scaleY(0);transform-origin:top;transition:transform .25s var(--ease);
}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(242,96,12,.3);}
.pain-card:hover::before{transform:scaleY(1);}
.pain-num{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;background:var(--bg-alt);
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.pain-body h3{font-size:17px;font-weight:700;margin-bottom:6px;letter-spacing:0;}
.pain-body p{font-size:14px;color:var(--muted);}
.pain-arrow{margin-left:auto;align-self:center;flex:0 0 auto;}
.pain-arrow svg{width:18px;height:18px;stroke:var(--line);transition:stroke .2s var(--ease),transform .2s var(--ease);}
.pain-card:hover .pain-arrow svg{stroke:var(--brand);transform:translateX(4px);}

/* ---------- Solution cards ---------- */
.solution-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:22px;align-items:stretch;}
.sol-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-24);padding:30px;
  display:flex;flex-direction:column;gap:16px;position:relative;overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.sol-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(242,96,12,.3);}
.sol-card--lead{padding-top:38px;}
.sol-card--lead::before{content:"";position:absolute;top:0;left:0;right:0;height:8px;background:var(--grad);}
.sol-icon{
  width:52px;height:52px;border-radius:16px;background:var(--bg-alt);
  display:flex;align-items:center;justify-content:center;
}
.sol-icon svg{width:24px;height:24px;stroke:var(--brand);}
.sol-card h3{font-size:21px;letter-spacing:-.3px;}
.sol-card--lead h3{font-size:24px;}
.sol-card p{font-size:14.5px;color:var(--muted);}
.sol-list{display:flex;flex-direction:column;gap:10px;margin-top:2px;}
.sol-list li{position:relative;padding-left:20px;font-size:14.5px;color:var(--ink-2);}
.sol-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:var(--grad);
}
.sol-foot{margin-top:auto;padding-top:8px;}

/* ---------- Stats ---------- */
.stats{
  position:relative;background:var(--green);color:#fff;overflow:hidden;
  padding:clamp(56px,8vw,96px) 0;
}
.stats::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad);}
.stats::after{
  content:"";position:absolute;top:-140px;right:-100px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(198,232,92,.22),rgba(198,232,92,0) 70%);
}
.stats-inner{position:relative;z-index:1;}
.stats h2{color:#fff;font-size:clamp(24px,3.2vw,36px);margin-bottom:14px;}
.stats .lead{color:rgba(255,255,255,.72);max-width:660px;font-size:16px;margin-bottom:44px;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.stat-card{
  border:1px solid rgba(255,255,255,.24);border-radius:var(--r-24);padding:26px 24px;
  background:rgba(255,255,255,.06);display:flex;flex-direction:column;gap:6px;
}
.stat-card .num{font-size:38px;line-height:1.05;color:#fff;font-variant-numeric:tabular-nums;font-weight:800;}
.stat-card .num em{font-size:16px;font-style:normal;font-weight:700;color:var(--lime);margin-left:4px;}
.stat-card .lbl{font-size:13px;color:var(--lime);font-weight:700;}
.stat-card p{font-size:13.5px;color:rgba(255,255,255,.66);}

/* ---------- News (CMS) ---------- */
.news-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);gap:26px;align-items:stretch;}
.news-feature{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-24);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(242,96,12,.3);}
.news-feature__media{position:relative;overflow:hidden;}
.news-feature__media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .4s var(--ease);}
.news-feature:hover .news-feature__media img{transform:scale(1.04);}
.news-feature__body{padding:26px 28px 28px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-feature__body h3{font-size:21px;letter-spacing:-.3px;}
.news-feature__body p{font-size:14.5px;color:var(--muted);}
.news-list{display:flex;flex-direction:column;gap:14px;}
.news-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-16);
  padding:20px 22px;display:flex;flex-direction:column;gap:8px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.news-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(242,96,12,.3);}
.news-item__top{display:flex;align-items:center;gap:12px;}
.news-item h3{font-size:17px;font-weight:700;letter-spacing:0;transition:color .2s var(--ease);}
.news-item:hover h3{color:var(--brand);}
.news-item p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:2px;font-size:13px;color:var(--muted);}
.chip{
  display:inline-flex;align-items:center;border-radius:var(--r-999);padding:3px 12px;font-size:12.5px;
  font-weight:600;background:var(--bg-alt);color:var(--brand);white-space:nowrap;
}
.news-arrow{margin-left:auto;display:inline-flex;}
.news-arrow svg{width:17px;height:17px;stroke:var(--line);transition:stroke .2s var(--ease),transform .2s var(--ease);}
.news-item:hover .news-arrow svg,.news-feature:hover .news-arrow svg{stroke:var(--brand);transform:translateX(4px);}
.empty-state{
  background:var(--card);border:1px dashed var(--line);border-radius:var(--r-24);
  padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state svg{width:34px;height:34px;stroke:var(--muted);}
.empty-state p{font-size:15px;color:var(--muted);}

/* ---------- Category entries ---------- */
.cat-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;}
.cat-card{
  position:relative;border-radius:var(--r-24);overflow:hidden;color:#fff;min-height:260px;
  display:flex;flex-direction:column;justify-content:flex-end;padding:32px;
  background:var(--green);border:1px solid rgba(242,96,12,.35);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.cat-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,61,51,.35),rgba(15,61,51,.86));
}
.cat-card__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:0;opacity:.42;}
.cat-card__body{position:relative;z-index:1;display:flex;flex-direction:column;gap:10px;}
.cat-card h3{color:#fff;font-size:23px;letter-spacing:-.3px;}
.cat-card p{font-size:14.5px;color:rgba(255,255,255,.78);max-width:420px;}
.cat-card__arrow{
  position:absolute;top:24px;right:24px;z-index:1;width:42px;height:42px;border-radius:50%;
  border:1px solid rgba(255,255,255,.35);display:flex;align-items:center;justify-content:center;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.cat-card__arrow svg{width:18px;height:18px;stroke:#fff;}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.cat-card:hover .cat-card__arrow{background:var(--brand);border-color:var(--brand);transform:translate(2px,-2px);}

/* ---------- Form CTA + modal ---------- */
.contact-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-24);padding:32px;
  box-shadow:var(--shadow-sm);
}
.contact-band h3{font-size:22px;margin-bottom:8px;}
.contact-band p{font-size:14.5px;color:var(--muted);max-width:560px;}
.privacy-note{
  display:flex;gap:12px;align-items:flex-start;max-width:900px;margin:22px auto 0;
  font-size:13px;color:rgba(15,61,51,.6);line-height:1.7;
}
.privacy-note svg{width:18px;height:18px;stroke:rgba(15,61,51,.6);flex:0 0 auto;margin-top:2px;}
.modal{
  position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:24px;
  background:rgba(15,61,51,.6);backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);
}
.modal.is-open{opacity:1;visibility:visible;}
.modal-panel{
  width:100%;max-width:480px;background:#fff;border-radius:var(--r-24);padding:28px;position:relative;
  transform:translateY(12px);transition:transform .28s var(--ease);max-height:90vh;overflow-y:auto;
}
.modal.is-open .modal-panel{transform:translateY(0);}
.modal-close{
  position:absolute;top:14px;right:14px;width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  transition:background .2s var(--ease);
}
.modal-close:hover{background:var(--bg-alt);}
.modal-close svg{width:18px;height:18px;stroke:var(--ink);}
.modal-panel h3{font-size:22px;margin-bottom:8px;}
.modal-panel .modal-desc{font-size:14px;color:var(--muted);margin-bottom:22px;}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px;}
.field label{font-size:13.5px;font-weight:600;color:var(--ink-2);}
.field input,.field textarea{
  height:48px;border:1px solid var(--line);border-radius:12px;padding:0 14px;background:#fff;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.field textarea{height:104px;padding:12px 14px;resize:vertical;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);background:var(--bg-alt);}
.field.has-error input{border-color:#D6392B;}
.field .err{font-size:12px;color:#D6392B;display:none;}
.field.has-error .err{display:block;}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);margin:4px 0 20px;}
.consent input{margin-top:3px;}
.form-status{font-size:13px;border-radius:12px;padding:10px 14px;margin-bottom:14px;display:none;}
.form-status.is-ok{display:block;background:rgba(23,97,79,.1);color:var(--green-2);}
.form-status.is-bad{display:block;background:rgba(214,57,43,.08);color:#D6392B;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:840px;margin:0 auto;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-16);margin-bottom:12px;
  overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item.is-open{border-color:rgba(242,96,12,.32);box-shadow:var(--shadow-sm);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 22px;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item.is-open .faq-q{color:var(--brand);}
.faq-q::before{
  content:"";width:3px;align-self:stretch;border-radius:var(--r-999);background:var(--grad);
  opacity:0;transition:opacity .2s var(--ease);
}
.faq-item.is-open .faq-q::before{opacity:1;}
.faq-plus{
  margin-left:auto;flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  background:var(--bg-alt);display:flex;align-items:center;justify-content:center;
  transition:transform .25s var(--ease),background .2s var(--ease);
}
.faq-plus svg{width:15px;height:15px;stroke:var(--brand);}
.faq-item.is-open .faq-plus{transform:rotate(45deg);background:var(--brand);}
.faq-item.is-open .faq-plus svg{stroke:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a p{padding:0 22px 22px 41px;font-size:15px;line-height:1.85;color:var(--muted);}

/* ---------- Final CTA ---------- */
.cta-band{
  margin-bottom:80px;border-radius:var(--r-32);padding:clamp(36px,5vw,56px);
  background:var(--grad);color:#fff;display:flex;flex-wrap:wrap;gap:24px;
  align-items:center;justify-content:space-between;box-shadow:var(--shadow-lg);
}
.cta-band h2{color:#fff;font-size:clamp(22px,3vw,32px);max-width:620px;}
.cta-band p{color:rgba(255,255,255,.86);font-size:15px;margin-top:10px;max-width:600px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--green);color:#fff;position:relative;padding-top:4px;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad);}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand-name{font-size:17px;font-weight:800;color:#fff;letter-spacing:-.4px;}
.footer-brand-sub{font-size:11.5px;color:rgba(255,255,255,.6);}
.footer-about{font-size:14px;color:rgba(255,255,255,.66);max-width:320px;line-height:1.8;}
.footer-col h4{font-size:14px;font-weight:700;color:rgba(255,255,255,.72);margin-bottom:16px;letter-spacing:0;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.6);transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--lime);}
.footer-col span{font-size:14px;color:rgba(255,255,255,.6);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:12.5px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:var(--lime);}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 28px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .nav-menu,.nav-search,.nav-login,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .nav-inner{height:64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero{padding:44px 0 66px;}
  .hero-visual{order:2;}
  .float-card--stat{left:12px;bottom:16px;}
  .float-card--info{right:12px;top:16px;}
  .solution-grid{grid-template-columns:1fr 1fr;}
  .solution-grid .sol-card--lead{grid-column:1 / -1;}
  .stats-grid{grid-template-columns:1fr 1fr;}
  .news-layout{grid-template-columns:1fr;}
  .cat-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 36px;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .pain-grid{grid-template-columns:1fr;}
  .solution-grid{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:1fr 1fr;gap:16px;}
  .stat-card{padding:20px 18px;}
  .stat-card .num{font-size:30px;}
  .hero-badges{gap:10px;}
  .cta-band{flex-direction:column;align-items:flex-start;border-radius:var(--r-24);}
  .contact-band{padding:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519px){
  .hero h1{font-size:30px;}
  .hero-actions .btn{width:100%;}
  .mini-badge{width:100%;justify-content:flex-start;}
  .float-card--info{max-width:180px;}
  .news-feature__body{padding:20px;}
  .news-item{padding:18px;}
  .stats-grid{grid-template-columns:1fr 1fr;}
}

/* roulang page: article */
:root{
  --brand-1:#FF7A1A;
  --brand-2:#F2600C;
  --brand-3:#FFB347;
  --grad:linear-gradient(135deg,#FF7A1A 0%,#F2600C 48%,#FFB347 100%);
  --grad-soft:linear-gradient(135deg,rgba(255,122,26,.14) 0%,rgba(198,232,92,.14) 100%);
  --ink-green:#0F3D33;
  --green-2:#17614F;
  --lime:#C6E85C;
  --bg:#FFF9F4;
  --bg-alt:#FFF3E9;
  --card:#FFFFFF;
  --text:#101A16;
  --text-2:#2C3A34;
  --text-3:#5A6B64;
  --line:#E7E1D9;
  --r-10:10px;
  --r-16:16px;
  --r-24:24px;
  --r-32:32px;
  --r-pill:999px;
  --shadow-sm:0 2px 8px rgba(16,26,22,.06);
  --shadow-md:0 12px 32px -12px rgba(242,96,12,.18);
  --shadow-lg:0 28px 64px -24px rgba(16,26,22,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
  --sec-gap:clamp(56px,8vw,104px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
svg{width:20px;height:20px;stroke:currentColor;fill:none}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:4px}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.section{padding:var(--sec-gap) 0}
.section-alt{background:var(--bg-alt)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--grad-soft);
  color:var(--brand-2);
  font-size:13px;font-weight:700;letter-spacing:.02em;
  border:1px solid rgba(242,96,12,.18);
}
.section-head{margin-bottom:clamp(28px,4vw,44px)}
.section-head h2{
  font-size:clamp(24px,3.2vw,36px);
  font-weight:800;letter-spacing:-.5px;color:var(--ink-green);
  line-height:1.25;
}
.section-head p{margin-top:12px;color:var(--text-3);font-size:15.5px;max-width:680px}
.num{font-variant-numeric:tabular-nums;font-weight:700}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  height:72px;display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,249,244,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.nav-inner{display:flex;align-items:center;gap:24px;width:100%}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  background:var(--grad);
  display:grid;place-items:center;
  box-shadow:var(--shadow-md);
  color:#fff;flex-shrink:0;
}
.brand-mark svg{width:22px;height:22px;stroke:#fff}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.3px;color:var(--ink-green)}
.brand-sub{font-size:11.5px;color:var(--text-3);letter-spacing:.08em}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:12px}
.nav-link{
  position:relative;padding:10px 14px;border-radius:var(--r-pill);
  font-size:14.5px;color:var(--text-2);transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--brand-2);background:var(--bg-alt)}
.nav-link.is-active{color:var(--brand-2);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:var(--r-pill);background:var(--grad);
}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;width:180px;
  border-radius:var(--r-pill);background:#fff;
  border:1px solid var(--line);
  transition:border-color .2s var(--ease),width .25s var(--ease),box-shadow .2s var(--ease);
}
.nav-search svg{width:17px;height:17px;color:var(--text-3);flex-shrink:0}
.nav-search input{
  border:0;outline:none;background:transparent;width:100%;
  font-size:14px;color:var(--text);
}
.nav-search input::placeholder{color:#9AA7A0}
.nav-search:focus-within{border-color:var(--brand-2);width:220px;box-shadow:var(--shadow-sm)}
.nav-login{font-size:14.5px;color:var(--text-2);padding:8px 6px;transition:color .2s var(--ease)}
.nav-login:hover{color:var(--brand-2)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;line-height:1;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn svg{width:18px;height:18px}
.btn-primary{
  background:var(--grad);color:#fff;box-shadow:var(--shadow-md);
  background-size:150% 150%;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 36px -14px rgba(242,96,12,.5);background-position:100% 0}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:#fff;color:var(--ink-green);border:1px solid var(--line);
}
.btn-ghost:hover{border-color:rgba(242,96,12,.45);color:var(--brand-2);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn:disabled,.btn[disabled]{opacity:.4;pointer-events:none}
.nav-cta{padding:11px 20px;font-size:14.5px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink-green);
  align-items:center;justify-content:center;
}
.nav-toggle svg{width:20px;height:20px}
.nav-drawer{
  position:fixed;inset:60px 0 0 0;z-index:55;
  background:#fff;padding:20px 20px 96px;
  display:none;flex-direction:column;gap:6px;
  overflow-y:auto;
}
.nav-drawer.is-open{display:flex}
.drawer-group-title{font-size:12.5px;font-weight:700;color:var(--text-3);letter-spacing:.08em;padding:12px 4px 6px}
.drawer-link{
  padding:14px 16px;border-radius:var(--r-16);font-size:16px;color:var(--text-2);
  display:flex;align-items:center;justify-content:space-between;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.drawer-link:hover,.drawer-link:active{background:var(--bg-alt);color:var(--brand-2)}
.drawer-foot{
  position:fixed;left:20px;right:20px;bottom:20px;
}
.drawer-foot .btn{width:100%}

/* ---------- 面包屑 ---------- */
.crumbs{padding:22px 0 0}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3)}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs .sep{color:#BFC8C2}
.crumbs a{color:var(--text-3);transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--brand-2)}
.crumbs .current{color:var(--brand-2);font-weight:700}

/* ---------- 文章头 ---------- */
.article-hero{padding:24px 0 clamp(28px,4vw,44px)}
.article-hero h1{
  font-size:clamp(28px,4.2vw,44px);
  font-weight:800;letter-spacing:-.5px;line-height:1.3;
  color:var(--ink-green);
  max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:20px;font-size:13.5px;color:var(--text-3);
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;
  background:var(--grad-soft);color:var(--brand-2);
  border:1px solid rgba(242,96,12,.2);
}
.chip-lime{background:rgba(198,232,92,.28);color:#3E5A14;border-color:rgba(198,232,92,.7)}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#D6CFC6}
.hero-rule{
  margin-top:28px;height:4px;border-radius:var(--r-pill);
  background:var(--grad);max-width:180px;
}

/* ---------- 文章布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);
  gap:48px;padding-bottom:var(--sec-gap);
}
.article-main{min-width:0}
.article-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-24);padding:clamp(22px,3.4vw,40px);
  box-shadow:var(--shadow-sm);
}
.article-body{
  font-size:17px;line-height:1.9;color:var(--text-2);
  max-width:780px;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.4em}
.article-body h1,.article-body h2,.article-body h3,.article-body h4{
  color:var(--ink-green);letter-spacing:-.3px;line-height:1.35;
}
.article-body h2{
  position:relative;
  font-size:clamp(20px,2.4vw,26px);font-weight:800;
  margin:40px 0 16px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:4px;
  border-radius:var(--r-pill);background:var(--grad);
}
.article-body h3{font-size:20px;font-weight:600;margin:28px 0 12px}
.article-body h4{font-size:17px;font-weight:700;margin:22px 0 10px}
.article-body img{border-radius:var(--r-16);margin:22px auto;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{
  margin-top:10px;text-align:center;font-size:13px;color:var(--text-3);
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;
  border-left:4px solid var(--brand-2);
  background:var(--bg-alt);
  border-radius:0 var(--r-16) var(--r-16) 0;
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.5em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.55em 0}
.article-body ul li::marker{color:var(--brand-2)}
.article-body ol li::marker{color:var(--brand-2);font-weight:700}
.article-body a{
  color:var(--brand-2);text-decoration:underline;
  text-underline-offset:3px;text-decoration-thickness:1px;
}
.article-body a:hover{color:#B8430A}
.article-body strong{color:var(--ink-green);font-weight:700}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-16);overflow:hidden;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:var(--bg-alt);color:var(--ink-green);font-weight:700}
.article-body tr:last-child td{border-bottom:0}
.article-body hr{border:0;border-top:1px dashed var(--line);margin:32px 0}

/* ---------- 空态 ---------- */
.state-empty{
  text-align:center;padding:56px 24px;
  border:1px dashed var(--line);border-radius:var(--r-16);
  background:var(--bg-alt);
}
.state-empty svg{
  width:44px;height:44px;margin:0 auto 16px;
  color:var(--brand-2);stroke-width:1.5;
}
.state-empty h3{font-size:20px;font-weight:800;color:var(--ink-green)}
.state-empty p{margin:10px 0 22px;color:var(--text-3);font-size:15px}

/* ---------- 悬浮目录 ---------- */
.toc{display:none}
.toc-inner{
  position:sticky;top:104px;
  border:1px solid var(--line);border-radius:var(--r-16);
  background:#fff;padding:20px;box-shadow:var(--shadow-sm);
}
.toc-title{
  font-size:13px;font-weight:700;color:var(--text-3);
  letter-spacing:.08em;margin-bottom:12px;
}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;padding:8px 10px;border-radius:var(--r-10);
  font-size:13.5px;color:var(--text-2);line-height:1.5;
  border-left:2px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.toc-list a:hover{background:var(--bg-alt);color:var(--brand-2);border-left-color:var(--brand-2)}
.toc-list a.is-current{color:var(--brand-2);font-weight:700;border-left-color:var(--brand-2);background:var(--bg-alt)}

/* ---------- 相关推荐 ---------- */
.related{padding-bottom:var(--sec-gap)}
.related-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.rec-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-24);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(242,96,12,.3)}
.rec-card figure{margin:0;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt)}
.rec-card img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.rec-card:hover img{transform:scale(1.04)}
.rec-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body h3{font-size:16.5px;font-weight:700;color:var(--ink-green);line-height:1.5}
.rec-card:hover .rec-body h3{color:var(--brand-2)}
.rec-body p{font-size:14px;color:var(--text-3);line-height:1.75}
.rec-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-3)}
.rec-meta svg{width:16px;height:16px;transition:transform .2s var(--ease)}
.rec-card:hover .rec-meta svg{transform:translateX(4px);color:var(--brand-2)}

/* ---------- 返回 ---------- */
.back-row{
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:16px;
  padding-bottom:var(--sec-gap);
}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-32);
  background:var(--grad);
  padding:clamp(28px,4vw,44px) clamp(24px,4vw,48px);
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:24px;
  margin-bottom:80px;
  box-shadow:var(--shadow-md);
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-90px;width:280px;height:280px;
  border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.35) 0%,rgba(255,255,255,0) 70%);
}
.cta-band h2{
  position:relative;z-index:1;
  font-size:clamp(20px,2.6vw,28px);font-weight:800;color:#fff;letter-spacing:-.4px;
}
.cta-band p{position:relative;z-index:1;margin-top:8px;color:rgba(255,255,255,.88);font-size:14.5px}
.cta-band .btn{
  position:relative;z-index:1;
  background:#fff;color:var(--brand-2);box-shadow:0 10px 24px -10px rgba(16,26,22,.4);
}
.cta-band .btn:hover{transform:translateY(-2px);background:#FFF9F4}

/* ---------- 隐私说明 ---------- */
.privacy-note{
  display:flex;align-items:flex-start;gap:12px;
  max-width:820px;margin:0 auto var(--sec-gap);
  font-size:13px;line-height:1.8;color:rgba(15,61,51,.6);
}
.privacy-note svg{width:20px;height:20px;flex-shrink:0;margin-top:2px;color:var(--green-2)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--ink-green);
  color:rgba(255,255,255,.6);
  padding:clamp(48px,6vw,72px) 0 0;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px 32px;padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand-name{font-size:17px;font-weight:800;color:#fff}
.footer-brand-sub{font-size:11.5px;color:rgba(255,255,255,.55);letter-spacing:.08em}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.58);max-width:360px}
.footer-col h4{
  font-size:14px;font-weight:700;color:rgba(255,255,255,.72);
  margin-bottom:16px;letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:rgba(255,255,255,.6);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12.5px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:var(--lime)}

/* ---------- 响应式 ---------- */
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,780px) 248px;justify-content:center}
  .toc{display:block}
}
@media (min-width:1024px) and (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);max-width:860px;margin:0 auto}
}
@media (max-width:1023px){
  .nav-menu,.nav-search{display:none}
  .nav-toggle{display:inline-flex}
  .nav-login{display:none}
  .nav-cta{display:none}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .container{padding:0 24px}
  .article-body{font-size:16px}
  .article-card{border-radius:var(--r-16)}
  .cta-band{border-radius:var(--r-24)}
}
@media (max-width:640px){
  .site-header{height:60px}
  .nav-drawer{inset:60px 0 0 0}
  .container{padding:0 16px}
  .brand-sub{display:none}
  .article-hero h1{font-size:clamp(24px,7vw,30px)}
  .article-body{font-size:15.5px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-about{max-width:none}
  .back-row{flex-direction:column;align-items:stretch}
  .back-row .btn{width:100%}
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-band .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --brand:#F2600C;
  --brand-light:#FF7A1A;
  --brand-soft:#FFB347;
  --brand-grad:linear-gradient(135deg,#FF7A1A 0%,#F2600C 48%,#FFB347 100%);
  --deep:#0F3D33;
  --deep-2:#17614F;
  --lime:#C6E85C;
  --bg:#FFF9F4;
  --bg-alt:#FFF3E9;
  --card:#FFFFFF;
  --text:#101A16;
  --text-2:#2C3A34;
  --muted:#5A6B64;
  --line:#E7E1D9;
  --r-xs:10px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --r-pill:999px;
  --shadow-sm:0 2px 8px rgba(16,26,22,.06);
  --shadow-md:0 12px 32px -12px rgba(242,96,12,.18);
  --shadow-lg:0 28px 64px -24px rgba(16,26,22,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:72px;
  --font:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:800;letter-spacing:-.5px;line-height:1.25;}
p{margin:0;}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
::selection{background:rgba(242,96,12,.18);}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{
  color:#fff;
  background-image:var(--brand-grad);
  background-size:150% 150%;
  background-position:0% 50%;
  box-shadow:var(--shadow-md);
}
.btn-primary:hover{transform:translateY(-2px);background-position:100% 50%;box-shadow:0 18px 38px -14px rgba(242,96,12,.42);}
.btn-primary:active{transform:translateY(-1px);}
.btn-ghost{
  color:var(--deep);
  border:1px solid rgba(23,97,79,.34);
  background:#fff;
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--brand);color:var(--brand);box-shadow:var(--shadow-sm);}
.btn-ghost:active{transform:translateY(-1px);}
.btn-ghost-light{
  color:#fff;
  border:1px solid rgba(255,255,255,.44);
  background:rgba(255,255,255,.06);
}
.btn-ghost-light:hover{background:rgba(255,255,255,.16);transform:translateY(-2px);}
.btn-lime{
  color:#0F3D33;
  background:var(--lime);
  box-shadow:0 14px 30px -14px rgba(198,232,92,.7);
}
.btn-lime:hover{transform:translateY(-2px);box-shadow:0 20px 40px -16px rgba(198,232,92,.85);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}

/* ---------- 通用标签 ---------- */
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--bg-alt);
  color:var(--brand);
  font-size:13px;
  font-weight:700;
  letter-spacing:0;
}
.chip-deep{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.28);}
.chip-lime{background:rgba(198,232,92,.2);color:#3f5a10;}
.num{font-variant-numeric:tabular-nums;font-weight:700;}

/* ---------- 头部导航 ---------- */
.site-header{
  --nav-fg:rgba(255,255,255,.86);
  --nav-fg-strong:#FFFFFF;
  --nav-line:rgba(255,255,255,.16);
  --search-bg:rgba(255,255,255,.1);
  position:fixed;
  top:0;left:0;right:0;
  z-index:90;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{
  --nav-fg:#2C3A34;
  --nav-fg-strong:#101A16;
  --nav-line:#E7E1D9;
  --search-bg:#FFF3E9;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:var(--header-h);
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;
  border-radius:var(--r-sm);
  background-image:var(--brand-grad);
  display:grid;
  place-items:center;
  box-shadow:0 8px 18px -8px rgba(242,96,12,.6);
  flex-shrink:0;
}
.brand-mark svg{width:22px;height:22px;stroke:#fff;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:18px;font-weight:800;color:var(--nav-fg-strong);letter-spacing:-.4px;}
.brand-sub{font-size:11.5px;color:var(--nav-fg);letter-spacing:1px;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:10px;}
.nav-link{
  position:relative;
  padding:9px 13px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:500;
  color:var(--nav-fg);
}
.nav-link:hover{color:var(--nav-fg-strong);background:rgba(242,96,12,.08);}
.nav-link.is-active{color:var(--nav-fg-strong);font-weight:700;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:1px;
  height:3px;
  border-radius:3px;
  background-image:var(--brand-grad);
}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  height:42px;
  padding:0 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--nav-line);
  background:var(--search-bg);
  transition:border-color .2s var(--ease),width .2s var(--ease),background-color .2s var(--ease);
  width:190px;
}
.nav-search:focus-within{border-color:var(--brand);width:214px;background:#fff;}
.nav-search svg{width:16px;height:16px;stroke:var(--nav-fg);fill:none;flex-shrink:0;}
.nav-search input{
  border:0;background:transparent;outline:none;
  width:100%;font-size:14px;color:var(--nav-fg-strong);
}
.nav-search input::placeholder{color:var(--nav-fg);}
.nav-login{font-size:15px;font-weight:600;color:var(--nav-fg-strong);padding:8px 6px;}
.nav-login:hover{color:var(--brand);}
.nav-cta{height:42px;padding:0 20px;font-size:14px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:var(--r-sm);
  border:1px solid var(--nav-line);
  align-items:center;
  justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;stroke:var(--nav-fg-strong);fill:none;}
.drawer-cta{display:none;}

/* ---------- 内页 Hero 窄幅渐变条 ---------- */
.hero-strip{
  position:relative;
  overflow:hidden;
  padding:calc(var(--header-h) + 64px) 0 60px;
  background:linear-gradient(120deg,#0F3D33 0%,#155044 52%,#1E6350 100%);
  color:#fff;
}
.hero-strip::before{
  content:"";
  position:absolute;
  top:-160px;right:-120px;
  width:520px;height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(242,96,12,.42) 0%,rgba(242,96,12,0) 68%);
  pointer-events:none;
}
.hero-strip::after{
  content:"";
  position:absolute;
  left:-80px;bottom:-180px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(198,232,92,.14) 0%,rgba(198,232,92,0) 70%);
  pointer-events:none;
}
.hero-strip .container{position:relative;z-index:1;}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13.5px;
  color:rgba(255,255,255,.62);
  margin-bottom:22px;
}
.breadcrumb a{color:rgba(255,255,255,.78);}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb .sep{color:rgba(255,255,255,.36);}
.breadcrumb .current{color:var(--lime);font-weight:700;}
.hero-strip h1{
  color:#fff;
  font-size:clamp(28px,4.2vw,44px);
  max-width:820px;
}
.hero-strip .hero-lead{
  margin-top:18px;
  max-width:640px;
  font-size:16.5px;
  line-height:1.8;
  color:rgba(255,255,255,.82);
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px;
}
.hero-meta .meta-item{
  display:flex;
  align-items:baseline;
  gap:8px;
  padding:10px 16px;
  border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.07);
  font-size:13.5px;
  color:rgba(255,255,255,.86);
}
.hero-meta .meta-item b{font-size:18px;color:var(--lime);font-variant-numeric:tabular-nums;}

/* ---------- 板块 ---------- */
.section{padding:clamp(56px,8vw,104px) 0;}
.section-alt{background:var(--bg-alt);}
.sec-head{max-width:720px;margin-bottom:44px;}
.sec-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--brand);
  letter-spacing:1.4px;
  text-transform:uppercase;
  margin-bottom:14px;
}
.sec-head .eyebrow::before{
  content:"";width:22px;height:3px;border-radius:3px;background-image:var(--brand-grad);
}
.sec-head h2{font-size:clamp(24px,3.2vw,36px);}
.sec-head p{margin-top:14px;font-size:16px;color:var(--muted);}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;max-width:920px;margin:0 auto;padding-left:78px;}
.timeline::before{
  content:"";
  position:absolute;
  left:26px;top:8px;bottom:8px;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,#FF7A1A 0%,#F2600C 42%,rgba(242,96,12,.12) 100%);
}
.tl-item{position:relative;padding-bottom:26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  position:absolute;
  left:-78px;top:22px;
  width:54px;height:54px;
  border-radius:50%;
  display:grid;place-items:center;
  background-image:var(--brand-grad);
  color:#fff;
  font-size:19px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  box-shadow:0 12px 26px -12px rgba(242,96,12,.72);
  border:4px solid var(--bg);
  z-index:1;
}
.section-alt .tl-node{border-color:var(--bg-alt);}
.tl-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px 28px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.tl-card:hover{
  transform:translateY(-4px);
  border-color:rgba(242,96,12,.3);
  box-shadow:0 18px 40px -20px rgba(16,26,22,.24);
}
.tl-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:12px;}
.tl-head h3{font-size:20px;}
.tl-card>p{font-size:15.5px;color:var(--muted);line-height:1.8;}
.tl-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.tl-points li{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;
  border-radius:var(--r-pill);
  background:var(--bg-alt);
  border:1px solid var(--line);
  font-size:13.5px;
  font-weight:600;
  color:var(--deep-2);
}
.tl-points li::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--brand);
  flex-shrink:0;
}
.tl-note{
  margin-top:18px;
  padding:14px 18px;
  border-left:4px solid var(--brand);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  background:rgba(255,243,233,.9);
  font-size:14px;
  color:var(--text-2);
}
.tl-note b{color:var(--brand);}

/* ---------- 准备清单 ---------- */
.prep-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.prep-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.prep-card:hover{transform:translateY(-4px);border-color:rgba(242,96,12,.3);box-shadow:var(--shadow-sm);}
.prep-icon{
  width:44px;height:44px;
  border-radius:var(--r-sm);
  background:var(--bg-alt);
  display:grid;place-items:center;
  margin-bottom:16px;
}
.prep-icon svg{width:22px;height:22px;stroke:var(--brand);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.prep-card h3{font-size:17px;margin-bottom:8px;}
.prep-card p{font-size:14.5px;color:var(--muted);line-height:1.78;}

/* ---------- 图文卡 ---------- */
.trouble-wrap{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:40px;
  align-items:center;
}
.trouble-media{position:relative;}
.trouble-media img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-lg);
}
.trouble-badge{
  position:absolute;
  left:-16px;bottom:-18px;
  background:#fff;
  border:1px solid rgba(198,232,92,.9);
  border-radius:var(--r-md);
  padding:16px 20px;
  box-shadow:var(--shadow-md);
  display:flex;
  align-items:center;
  gap:14px;
}
.trouble-badge b{font-size:26px;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1;}
.trouble-badge span{font-size:13px;color:var(--muted);display:block;line-height:1.4;}
.trouble-list{display:grid;gap:16px;margin-top:26px;}
.trouble-list li{
  display:flex;
  gap:14px;
  padding:18px 20px;
  border-radius:var(--r-md);
  background:var(--card);
  border:1px solid var(--line);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.trouble-list li:hover{transform:translateY(-4px);border-color:rgba(242,96,12,.3);box-shadow:var(--shadow-sm);}
.trouble-list .idx{
  flex-shrink:0;
  width:30px;height:30px;
  border-radius:var(--r-xs);
  background:var(--bg-alt);
  color:var(--brand);
  font-weight:800;
  font-size:14px;
  display:grid;place-items:center;
  font-variant-numeric:tabular-nums;
}
.trouble-list h3{font-size:16px;margin-bottom:4px;}
.trouble-list p{font-size:14px;color:var(--muted);line-height:1.75;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:840px;margin:0 auto;display:grid;gap:12px;}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item.is-open{border-color:rgba(242,96,12,.32);box-shadow:var(--shadow-sm);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--text);
  position:relative;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background-image:var(--brand-grad);
  opacity:0;
  transition:opacity .2s var(--ease);
}
.faq-item.is-open .faq-q::before{opacity:1;}
.faq-icon{
  flex-shrink:0;
  width:30px;height:30px;
  border-radius:50%;
  border:1px solid var(--line);
  background:var(--bg-alt);
  color:var(--brand);
  font-size:18px;
  font-weight:700;
  display:grid;place-items:center;
  transition:transform .25s var(--ease),background-color .2s var(--ease);
  line-height:1;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:rgba(242,96,12,.12);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a-inner{
  padding:0 24px 22px 40px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}

/* ---------- CTA 横幅 ---------- */
.cta-band-wrap{padding:0 0 80px;}
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-xl);
  padding:clamp(32px,4.4vw,52px);
  background:linear-gradient(120deg,#FF7A1A 0%,#F2600C 52%,#FFB347 100%);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  box-shadow:0 28px 60px -28px rgba(242,96,12,.6);
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-90px;top:-90px;
  width:300px;height:300px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.26) 0%,rgba(255,255,255,0) 70%);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);position:relative;z-index:1;}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.9);position:relative;z-index:1;max-width:560px;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--deep);
  color:rgba(255,255,255,.66);
  position:relative;
  padding:72px 0 0;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:4px;
  background-image:var(--brand-grad);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand-name{font-size:17px;font-weight:800;color:#fff;}
.footer-brand-sub{font-size:11.5px;color:rgba(255,255,255,.6);letter-spacing:1px;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px;}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:rgba(255,255,255,.7);
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col li{font-size:14px;}
.footer-col a,.footer-col span{color:rgba(255,255,255,.6);font-size:14px;}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:rgba(255,255,255,.5);
}
.footer-bottom a{color:var(--lime);}
.footer-bottom a:hover{text-decoration:underline;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .nav-menu{margin-left:0;}
  .prep-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .trouble-wrap{grid-template-columns:1fr;gap:56px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .nav-search{display:none;}
}
@media (max-width:860px){
  :root{--header-h:60px;}
  .nav-menu{
    position:fixed;
    top:60px;left:0;right:0;bottom:0;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:22px 20px 32px;
    margin:0;
    transform:translateX(100%);
    transition:transform .3s var(--ease);
    overflow-y:auto;
    z-index:88;
  }
  body.nav-open .nav-menu{transform:translateX(0);}
  .nav-link{
    color:var(--text-2);
    font-size:16px;
    padding:14px 16px;
    border-radius:var(--r-sm);
  }
  .nav-link:hover,.nav-link.is-active{background:var(--bg-alt);color:var(--brand);}
  .nav-link.is-active::after{display:none;}
  .nav-login{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .drawer-cta{display:inline-flex;margin-top:16px;}
  .brand-name{font-size:16.5px;}
  .brand-sub{font-size:10.5px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  body{font-size:15.5px;}
  .hero-strip{padding:calc(var(--header-h) + 40px) 0 44px;}
  .hero-strip .hero-lead{font-size:15px;}
  .hero-meta .meta-item{font-size:12.5px;padding:8px 14px;}
  .timeline{padding-left:52px;}
  .timeline::before{left:17px;width:3px;}
  .tl-node{left:-52px;width:38px;height:38px;font-size:15px;border-width:3px;top:20px;}
  .tl-card{padding:20px;}
  .tl-head h3{font-size:18px;}
  .prep-grid{grid-template-columns:1fr;}
  .trouble-badge{left:8px;bottom:-16px;padding:12px 16px;}
  .trouble-badge b{font-size:22px;}
  .faq-q{font-size:15.5px;padding:18px 18px;}
  .faq-a-inner{padding:0 18px 18px 18px;}
  .cta-band{flex-direction:column;align-items:flex-start;text-align:left;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;font-size:12px;}
}

/* roulang page: category2 */
:root{
  --brand:#F2600C;
  --brand-light:#FF7A1A;
  --brand-soft:#FFB347;
  --grad:linear-gradient(135deg,#FF7A1A 0%,#F2600C 48%,#FFB347 100%);
  --green:#0F3D33;
  --green-2:#17614F;
  --lime:#C6E85C;
  --bg:#FFF9F4;
  --bg-alt:#FFF3E9;
  --card:#FFFFFF;
  --ink:#101A16;
  --ink-2:#2C3A34;
  --ink-3:#5A6B64;
  --line:#E7E1D9;
  --r-10:10px;
  --r-16:16px;
  --r-24:24px;
  --r-32:32px;
  --r-pill:999px;
  --shadow-sm:0 2px 8px rgba(16,26,22,.06);
  --shadow-md:0 12px 32px -12px rgba(242,96,12,.18);
  --shadow-lg:0 28px 64px -24px rgba(16,26,22,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sec:clamp(56px,8vw,104px);
  --font:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.5px;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
svg{width:100%;height:100%;stroke:currentColor;fill:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
::selection{background:rgba(242,96,12,.18)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--sec) 0}
.section--alt{background:var(--bg-alt)}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-head h2{font-size:clamp(24px,3.2vw,36px);margin-bottom:14px}
.sec-head p{color:var(--ink-3);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.6px;color:var(--brand);
  background:rgba(242,96,12,.09);
  border:1px solid rgba(242,96,12,.2);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grad)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-sm);
  backdrop-filter:saturate(160%) blur(8px);
}
.nav-inner{
  display:flex;align-items:center;gap:24px;
  min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;flex:none;border-radius:14px;
  background:var(--grad);color:#fff;
  display:grid;place-items:center;
  box-shadow:0 8px 20px -8px rgba(242,96,12,.65);
}
.brand-mark svg{width:22px;height:22px;stroke:#fff}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.5px}
.brand-sub{font-size:11.5px;color:var(--ink-3);letter-spacing:1.5px}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:12px}
.nav-link{
  position:relative;
  padding:10px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%) scaleX(0);
  width:22px;height:3px;border-radius:var(--r-pill);background:var(--grad);
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--brand);background:rgba(242,96,12,.07)}
.nav-link.is-active{color:var(--brand);font-weight:700}
.nav-link.is-active::after{transform:translateX(-50%) scaleX(1)}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;width:180px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),width .25s var(--ease);
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(242,96,12,.12);width:210px}
.nav-search svg{width:16px;height:16px;flex:none;stroke:var(--ink-3)}
.nav-search input{
  border:0;background:transparent;width:100%;font-size:14px;outline:none;
}
.nav-search input::placeholder{color:#9AA8A2}
.nav-login{font-size:15px;font-weight:600;color:var(--ink-2);padding:8px 6px;transition:color .2s var(--ease)}
.nav-login:hover{color:var(--brand)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  place-items:center;
}
.nav-toggle svg{width:22px;height:22px;stroke:var(--ink)}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;letter-spacing:.2px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  will-change:transform;
}
.btn svg{width:17px;height:17px;stroke:currentColor}
.btn-primary{
  background:var(--grad);color:#fff;
  box-shadow:0 12px 26px -14px rgba(242,96,12,.85);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px -16px rgba(242,96,12,.9)}
.btn-primary:active{transform:translateY(-1px)}
.btn-ghost{
  background:transparent;color:var(--green);
  border:1px solid rgba(23,97,79,.35);
}
.btn-ghost:hover{background:rgba(23,97,79,.08);border-color:var(--green-2);transform:translateY(-2px)}
.btn-outline{
  background:#fff;color:var(--ink);border:1px solid var(--line);
}
.btn-outline:hover{border-color:rgba(242,96,12,.5);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-disabled,.btn[disabled]{opacity:.4;pointer-events:none}
.nav-cta{height:42px;padding:0 20px;font-size:14.5px}

/* mobile drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,61,51,.55);backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);z-index:90;
  background:#fff;padding:22px 22px 96px;
  transform:translateX(104%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;gap:6px;overflow-y:auto;
  box-shadow:var(--shadow-lg);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-title{font-size:13px;font-weight:700;color:var(--ink-3);letter-spacing:1px}
.drawer-close{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center}
.drawer-close svg{width:18px;height:18px;stroke:var(--ink)}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 14px;border-radius:14px;font-size:16px;font-weight:600;color:var(--ink-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.drawer-link:hover,.drawer-link:active{background:var(--bg-alt);color:var(--brand)}
.drawer-link.is-active{background:rgba(242,96,12,.09);color:var(--brand)}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}
.drawer-foot .btn{width:100%}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  padding:56px 0 84px;
  background-image:
    linear-gradient(115deg,rgba(255,249,244,.96) 0%,rgba(255,243,233,.88) 42%,rgba(255,178,71,.42) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center 32%;
  border-bottom:1px solid var(--line);
}
.cat-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:480px;height:480px;
  background:radial-gradient(circle,rgba(242,96,12,.22),transparent 68%);
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:1}
.crumbs{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13.5px;color:var(--ink-3);margin-bottom:22px;
}
.crumbs a{color:var(--ink-3);transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:#B9C2BD}
.crumbs .current{color:var(--brand);font-weight:700}
.cat-hero h1{
  font-size:clamp(28px,4.4vw,46px);
  max-width:900px;
  margin-bottom:18px;
}
.cat-hero h1 .h1-brand{
  display:block;font-size:clamp(13px,1.5vw,15px);
  letter-spacing:3px;color:var(--brand);font-weight:700;
  margin-bottom:12px;text-transform:none;
}
.cat-hero .lede{
  max-width:720px;font-size:clamp(15.5px,1.8vw,17px);
  color:var(--ink-2);line-height:1.85;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-strip{
  display:flex;flex-wrap:wrap;gap:12px;
}
.strip-item{
  display:inline-flex;align-items:center;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:9px 18px 9px 12px;box-shadow:var(--shadow-sm);
  font-size:13.5px;color:var(--ink-2);
}
.strip-item .dot{
  width:24px;height:24px;border-radius:50%;flex:none;
  background:rgba(198,232,92,.35);border:1px solid rgba(23,97,79,.25);
  display:grid;place-items:center;
}
.strip-item .dot svg{width:13px;height:13px;stroke:var(--green-2)}
.strip-item b{color:var(--green);font-weight:700;font-variant-numeric:tabular-nums}

/* ---------- card grid ---------- */
.grid-cards{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;
}
.info-card{
  position:relative;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-24);
  padding:30px 30px 28px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  overflow:hidden;
}
.info-card::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:4px;
  border-radius:0 4px 4px 0;background:var(--grad);
  transform:scaleY(0);transform-origin:top;
  transition:transform .25s var(--ease);
}
.info-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:rgba(242,96,12,.35);
}
.info-card:hover::before{transform:scaleY(1)}
.card-top{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.card-ico{
  width:48px;height:48px;flex:none;border-radius:16px;
  background:var(--bg-alt);color:var(--brand);
  display:grid;place-items:center;border:1px solid rgba(242,96,12,.16);
}
.card-ico svg{width:22px;height:22px;stroke:var(--brand)}
.info-card h3{font-size:20px;font-weight:700;letter-spacing:-.3px}
.info-card p{font-size:15.5px;color:var(--ink-3);line-height:1.85;margin-bottom:18px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;
  font-size:12.5px;font-weight:600;color:var(--green-2);
  background:rgba(23,97,79,.08);border:1px solid rgba(23,97,79,.16);
  padding:4px 12px;border-radius:var(--r-pill);
}
.tag--warm{color:var(--brand);background:rgba(242,96,12,.08);border-color:rgba(242,96,12,.18)}
.card-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:700;color:var(--brand);margin-top:6px;
}
.card-link svg{width:15px;height:15px;stroke:var(--brand);transition:transform .2s var(--ease)}
.card-link:hover svg{transform:translateX(4px)}

/* ---------- stat row ---------- */
.stat-row{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
  margin-top:8px;
}
.stat-card{
  background:var(--bg-alt);
  border:1px solid var(--line);border-radius:var(--r-16);
  padding:24px 22px;text-align:left;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:rgba(242,96,12,.3)}
.stat-num{
  font-size:clamp(28px,3.4vw,38px);font-weight:800;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:-1px;
}
.stat-num span{font-size:14px;font-weight:700;color:var(--ink-3);margin-left:4px;letter-spacing:0}
.stat-label{font-size:13.5px;font-weight:700;color:var(--green);margin-top:6px}
.stat-desc{font-size:13.5px;color:var(--ink-3);margin-top:6px;line-height:1.7}

/* ---------- wide feature ---------- */
.feature-wide{
  display:grid;grid-template-columns:1.05fr 1fr;gap:0;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-32);overflow:hidden;box-shadow:var(--shadow-sm);
}
.feature-media{position:relative;min-height:320px}
.feature-media img{width:100%;height:100%;object-fit:cover}
.feature-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,61,51,0) 40%,rgba(15,61,51,.55) 100%);
}
.feature-media .media-tag{
  position:absolute;left:22px;bottom:20px;z-index:1;
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.92);color:var(--green);
  font-size:13px;font-weight:700;padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(198,232,92,.9);
}
.feature-body{padding:38px 38px 34px}
.feature-body h2{font-size:clamp(22px,2.6vw,28px);margin-bottom:14px}
.feature-body > p{color:var(--ink-3);font-size:15.5px;line-height:1.85;margin-bottom:22px}
.check-list{display:flex;flex-direction:column;gap:12px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--ink-2);
}
.check-list li .tick{
  width:22px;height:22px;flex:none;margin-top:2px;border-radius:50%;
  background:var(--grad);display:grid;place-items:center;
}
.check-list li .tick svg{width:12px;height:12px;stroke:#fff;stroke-width:3}

/* ---------- faq ---------- */
.faq-wrap{max-width:840px;margin:0 auto}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-16);
  margin-bottom:12px;overflow:hidden;position:relative;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--grad);transform:scaleY(0);transform-origin:top;
  transition:transform .25s var(--ease);
}
.faq-item.open{border-color:rgba(242,96,12,.35);box-shadow:var(--shadow-sm)}
.faq-item.open::before{transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  text-align:left;padding:20px 22px;
  font-size:17px;font-weight:600;color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  width:30px;height:30px;flex:none;border-radius:50%;
  border:1px solid var(--line);color:var(--brand);
  display:grid;place-items:center;font-size:18px;font-weight:700;line-height:1;
  transition:transform .28s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--grad);color:#fff;border-color:transparent}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .35s var(--ease),padding .3s var(--ease);
  padding:0 22px;
}
.faq-item.open .faq-a{max-height:360px;padding:0 22px 22px}
.faq-a p{font-size:15px;line-height:1.85;color:var(--ink-3)}

/* ---------- privacy note ---------- */
.privacy-note{
  display:flex;gap:14px;align-items:flex-start;
  max-width:900px;margin:0 auto;
  padding:18px 22px;border-radius:var(--r-16);
  background:rgba(23,97,79,.05);border:1px dashed rgba(23,97,79,.25);
}
.privacy-note svg{width:22px;height:22px;flex:none;stroke:var(--green-2);margin-top:2px}
.privacy-note p{font-size:13px;line-height:1.8;color:rgba(15,61,51,.68)}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--grad);
  border-radius:var(--r-32);
  padding:clamp(32px,5vw,52px) clamp(26px,4vw,56px);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:0 26px 60px -30px rgba(242,96,12,.9);
  margin-bottom:80px;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;bottom:-140px;width:360px;height:360px;
  background:radial-gradient(circle,rgba(255,255,255,.35),transparent 65%);
}
.cta-band .cta-copy{position:relative;z-index:1;max-width:640px}
.cta-band h2{color:#fff;font-size:clamp(22px,3vw,30px);margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.9);font-size:15.5px}
.cta-band .btn{
  position:relative;z-index:1;
  background:#fff;color:var(--brand);
  box-shadow:0 16px 32px -14px rgba(16,26,22,.4);
}
.cta-band .btn:hover{transform:translateY(-2px)}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  background:var(--green);color:rgba(255,255,255,.72);
  padding:64px 0 26px;margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px 32px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand-name{font-size:18px;font-weight:800;color:#fff;letter-spacing:-.4px}
.footer-brand-sub{font-size:11.5px;letter-spacing:1.6px;color:rgba(255,255,255,.6)}
.footer-brand .brand-mark{box-shadow:none}
.footer-about{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:360px}
.footer-col h4{
  font-size:14px;font-weight:700;color:rgba(255,255,255,.72);
  margin-bottom:18px;letter-spacing:.4px;
}
.footer-col li{margin-bottom:12px;font-size:14px}
.footer-col a,.footer-col span{color:rgba(255,255,255,.6);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding-top:22px;font-size:12.5px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.72);text-decoration:underline;text-underline-offset:3px}
.footer-bottom a:hover{color:var(--lime)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 28px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-menu{display:none}
  .nav-search{display:none}
  .nav-toggle{display:grid}
  .grid-cards{grid-template-columns:1fr}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .feature-wide{grid-template-columns:1fr}
  .feature-media{min-height:260px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cat-hero{padding:44px 0 64px}
}
@media (max-width:767px){
  .nav-inner{min-height:60px;gap:12px}
  .brand-mark{width:38px;height:38px;border-radius:12px}
  .brand-name{font-size:17px}
  .brand-sub{font-size:10.5px;letter-spacing:1.2px}
  .nav-cta,.nav-login{display:none}
  .cat-hero{background-position:center 20%;padding:36px 0 56px}
  .feature-body{padding:28px 22px 26px}
  .info-card{padding:24px 22px}
  .faq-q{font-size:16px;padding:18px}
  .cta-band{border-radius:var(--r-24);margin-bottom:56px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
}
@media (max-width:519px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .stat-row{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .section{padding:52px 0}
  .sec-head{margin-bottom:28px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}