/* roulang page: index */
:root{
  --primary:#B7E22E;
  --primary-dark:#9CC41F;
  --accent:#FF6A3D;
  --tertiary:#2E6F63;
  --ink:#0D0F0B;
  --ink-2:#16190F;
  --paper:#F4F2EA;
  --surface:#FFFFFF;
  --surface-2:#EAE7DC;
  --line:#D9D5C7;
  --muted:#6E6E62;
  --radius-card:20px;
  --radius-img:14px;
  --radius-input:12px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(13,15,11,.04), 0 12px 32px -18px rgba(13,15,11,.18);
  --shadow-lg:0 2px 4px rgba(13,15,11,.06), 0 20px 44px -20px rgba(13,15,11,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container-max:1200px;
  --nav-h:72px;
  --tab-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-2);
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
  padding-bottom:calc(var(--tab-h) + env(safe-area-inset-bottom));
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--ink-2);text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease);}
a:hover{color:var(--tertiary);}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.15;}
p{margin:0 0 1em;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{width:100%;max-width:var(--container-max);margin:0 auto;padding:0 28px;}
@media (min-width:1400px){.container{max-width:1280px;}}
@media (max-width:767px){.container{padding:0 20px;}}

/* ---------- Header ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:1040;
  height:var(--nav-h);
  display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .26s var(--ease),border-color .26s var(--ease),backdrop-filter .26s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(244,242,234,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-shell{display:flex;align-items:center;gap:28px;width:100%;}
.brand{
  font-size:1.32rem;font-weight:800;letter-spacing:-.02em;
  color:#fff;display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;
}
.brand::after{content:"";width:8px;height:8px;border-radius:2px;background:var(--primary);display:inline-block;}
.site-header.is-scrolled .brand{color:var(--ink);}
.desk-nav{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:rgba(255,255,255,.86);
  padding:6px 0;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--primary);
  transition:width .24s var(--ease);
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after,.nav-link.active::after{width:100%;}
.nav-link.active{color:var(--primary);}
.site-header.is-scrolled .nav-link{color:var(--muted);}
.site-header.is-scrolled .nav-link:hover{color:var(--ink);}
.site-header.is-scrolled .nav-link.active{color:var(--ink);}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.btn-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 26px;border-radius:var(--radius-pill);
  background:var(--primary);color:var(--ink);
  font-weight:600;font-size:15px;min-height:44px;
  border:1px solid transparent;
  transition:background .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.btn-pill:hover{background:var(--primary-dark);color:var(--ink);transform:translateY(-2px);border-color:var(--ink);}
.btn-pill:active{transform:translateY(0);}
.icon-btn{
  width:44px;height:44px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.9);border:1px solid rgba(255,255,255,.28);
  transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.site-header.is-scrolled .icon-btn{color:var(--ink);border-color:var(--line);}
.icon-btn:hover{background:rgba(183,226,46,.2);}
.hamburger{
  width:44px;height:44px;border-radius:12px;display:none;
  align-items:center;justify-content:center;color:#fff;font-size:1.1rem;
  border:1px solid rgba(255,255,255,.28);
}
.site-header.is-scrolled .hamburger{color:var(--ink);border-color:var(--line);}
@media (max-width:991px){
  .desk-nav{display:none;}
  .nav-actions .btn-pill{display:none;}
  .hamburger{display:inline-flex;}
}

/* ---------- Mobile drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(13,15,11,.5);z-index:1050;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer-panel{
  position:fixed;top:0;left:0;right:0;z-index:1060;
  background:var(--surface);border-radius:0 0 24px 24px;
  padding:20px 20px 28px;
  transform:translateY(-102%);
  transition:transform .24s var(--ease);
  max-height:88vh;overflow-y:auto;
}
.drawer-panel.open{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-brand{font-size:1.25rem;font-weight:800;display:inline-flex;align-items:center;gap:8px;}
.drawer-brand::after{content:"";width:8px;height:8px;border-radius:2px;background:var(--primary);}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:1.05rem;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 4px;border-bottom:1px solid var(--line);font-size:1rem;font-weight:500;
}
.drawer-nav a.active{color:var(--tertiary);font-weight:700;}
.drawer-nav a.active::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--primary);margin-right:10px;}
.drawer-cta{margin-top:20px;width:100%;justify-content:center;}
.drawer-contact{margin-top:18px;font-size:13px;color:var(--muted);letter-spacing:.04em;}

/* ---------- Mobile tabbar ---------- */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:1030;
  height:calc(var(--tab-h) + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.96);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
  display:none;
}
.mobile-tabbar .tab-inner{display:flex;height:var(--tab-h);}
.tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  font-size:11px;color:var(--muted);position:relative;letter-spacing:.02em;min-width:44px;
}
.tab-item i{font-size:1.05rem;}
.tab-item::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:0;height:2px;background:var(--primary);transition:width .24s var(--ease);
}
.tab-item.active{color:var(--tertiary);font-weight:600;}
.tab-item.active::before{width:28px;}
@media (max-width:991px){.mobile-tabbar{display:block;}}
@media (min-width:992px){body{padding-bottom:0;}}

/* ---------- Buttons ---------- */
.btn-ghost{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 30px;border-radius:var(--radius-pill);
  border:1px solid var(--ink);color:var(--ink);font-weight:600;font-size:15px;min-height:44px;
  background:transparent;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px);}
.btn-ghost.on-dark{border-color:rgba(255,255,255,.5);color:#fff;}
.btn-ghost.on-dark:hover{background:#fff;color:var(--ink);}
.btn-mega{
  display:inline-flex;align-items:center;gap:14px;
  padding:22px 56px;border-radius:var(--radius-pill);
  background:var(--primary);color:var(--ink);font-size:1.05rem;font-weight:700;
  box-shadow:0 0 0 0 rgba(183,226,46,.5);
  transition:background .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn-mega:hover{background:var(--primary-dark);transform:translateY(-3px);box-shadow:0 0 0 12px rgba(183,226,46,.16);color:var(--ink);}
.btn-mega i{transition:transform .24s var(--ease);}
.btn-mega:hover i{transform:translateX(6px);}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--tertiary);}
.link-arrow i{transition:transform .22s var(--ease);}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:82vh;display:flex;align-items:flex-end;
  padding:calc(var(--nav-h) + 48px) 0 56px;overflow:hidden;
  background:#0D0F0B;
}
.hero-bg{
  position:absolute;inset:-4%;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.62;animation:slowPan 20s ease-in-out infinite alternate;
}
@keyframes slowPan{from{transform:scale(1.04) translateY(0);}to{transform:scale(1.1) translateY(-14px);}}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(13,15,11,.86) 0%,rgba(13,15,11,.68) 42%,rgba(13,15,11,.94) 100%);
}
.hero-inner{position:relative;z-index:2;width:100%;}
.hero-grid{display:grid;grid-template-columns:6fr 4fr;gap:48px;align-items:flex-end;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.14em;
  color:var(--primary);text-transform:uppercase;margin-bottom:20px;
}
.hero-eyebrow::before{content:"";width:32px;height:1px;background:var(--primary);}
.hero-title{
  color:#fff;font-size:clamp(2.4rem,6vw,5rem);font-weight:800;line-height:1.02;letter-spacing:-.03em;
}
.hero-sub{color:rgba(255,255,255,.78);font-size:1.05rem;margin:22px 0 32px;max-width:30em;}
.hero-cta{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.hero-stats{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius-card);padding:26px 26px 20px;backdrop-filter:blur(6px);
}
.stat-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.12);}
.stat-row:last-child{border-bottom:0;}
.stat-num{font-size:1.7rem;font-weight:800;color:#fff;letter-spacing:-.02em;}
.stat-num .unit{font-size:.85rem;font-weight:600;color:var(--primary);margin-left:4px;}
.stat-label{font-size:12px;letter-spacing:.1em;color:rgba(255,255,255,.62);}
.scroll-hint{
  position:relative;z-index:2;margin-top:44px;display:flex;align-items:center;gap:12px;
  color:rgba(255,255,255,.55);font-size:12px;letter-spacing:.12em;
}
.scroll-hint span{display:block;width:46px;height:1px;background:rgba(255,255,255,.4);position:relative;overflow:hidden;}
.scroll-hint span::after{content:"";position:absolute;inset:0;background:var(--primary);animation:hintRun 2.2s var(--ease) infinite;}
@keyframes hintRun{0%{transform:translateX(-100%);}60%,100%{transform:translateX(100%);}}
@media (max-width:991px){
  .hero{min-height:68vh;padding:calc(var(--nav-h) + 30px) 0 40px;align-items:flex-start;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-stats{overflow-x:auto;display:flex;gap:22px;padding:18px 20px;}
  .stat-row{flex-direction:column;align-items:flex-start;gap:2px;border-bottom:0;border-right:1px solid rgba(255,255,255,.12);padding:0 22px 0 0;min-width:118px;}
  .stat-row:last-child{border-right:0;}
  .stat-num{font-size:1.4rem;}
}

/* ---------- Section base ---------- */
.section{padding:110px 0;}
.section.tight{padding:88px 0;}
@media (max-width:991px){.section{padding:68px 0;}.section.tight{padding:56px 0;}}
.section-head{max-width:720px;margin-bottom:56px;}
.eyebrow{
  font-size:13px;letter-spacing:.16em;color:var(--tertiary);
  display:inline-flex;align-items:center;gap:10px;margin-bottom:14px;
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--primary);}
.section-title{font-size:clamp(1.7rem,3.2vw,2.6rem);font-weight:700;letter-spacing:-.02em;}
.section-desc{color:var(--muted);margin-top:16px;font-size:1rem;max-width:44em;}
.head-flex{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
@media (max-width:991px){.section-head{margin-bottom:36px;}}

/* ---------- Steps ---------- */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background-image:linear-gradient(90deg,rgba(217,213,199,.5) 1px,transparent 1px);
  background-size:25% 100%;
}
.step-item{padding:44px 26px;border-right:1px solid var(--line);transition:background .24s var(--ease);}
.step-item:last-child{border-right:0;}
.step-item:hover{background:rgba(255,255,255,.6);}
.step-num{
  font-size:3rem;font-weight:800;line-height:1;letter-spacing:-.04em;
  color:transparent;-webkit-text-stroke:1px var(--muted);margin-bottom:22px;display:block;
}
.step-item:hover .step-num{-webkit-text-stroke:1px var(--tertiary);}
.step-title{font-size:1.25rem;font-weight:600;margin-bottom:10px;}
.step-desc{color:var(--muted);font-size:.94rem;margin:0;}
@media (max-width:991px){
  .steps{grid-template-columns:1fr 1fr;background-size:50% 100%;}
  .step-item{border-bottom:1px solid var(--line);padding:32px 20px;}
  .step-item:nth-child(2n){border-right:0;}
  .step-item:nth-child(n+3){border-bottom:0;}
  .step-num{font-size:2.3rem;margin-bottom:14px;}
}
@media (max-width:575px){.steps{grid-template-columns:1fr;background-size:100% 100%;}.step-item{border-right:0;border-bottom:1px solid var(--line);}.step-item:last-child{border-bottom:0;}}

/* ---------- Rewards ---------- */
.reward-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:center;}
.reward-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px 28px;box-shadow:var(--shadow-sm);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.reward-card:hover{transform:translateY(-2px);border-color:var(--primary);box-shadow:var(--shadow-lg);}
.reward-card.featured{transform:scale(1.06);border-color:var(--primary);padding:40px 32px;box-shadow:var(--shadow-lg);}
.reward-card.featured:hover{transform:scale(1.06) translateY(-2px);}
.reward-badge{
  display:inline-block;padding:5px 14px;border-radius:var(--radius-pill);
  font-size:12px;letter-spacing:.1em;font-weight:600;margin-bottom:18px;
}
.badge-lime{background:rgba(183,226,46,.28);color:#4A5A0B;}
.badge-coral{background:rgba(255,106,61,.18);color:#A63A16;}
.badge-line{border:1px solid var(--line);color:var(--muted);}
.reward-name{font-size:1.4rem;font-weight:700;margin-bottom:18px;}
.reward-list li{position:relative;padding-left:20px;color:var(--muted);font-size:.95rem;line-height:1.9;}
.reward-list li::before{content:"";position:absolute;left:0;top:.78em;width:8px;height:2px;background:var(--primary);}
.reward-cond{margin-top:20px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}
.reward-link{margin-top:14px;display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--tertiary);}
.reward-link i{transition:transform .22s var(--ease);}
.reward-link:hover i{transform:translateX(4px);}
@media (max-width:991px){
  .reward-grid{grid-template-columns:1fr;gap:18px;}
  .reward-card.featured{transform:none;padding:32px 28px;}
  .reward-card.featured:hover{transform:translateY(-2px);}
}

/* ---------- Progress block ---------- */
.progress-block{
  background:var(--ink);color:#fff;border-radius:28px;padding:56px 48px;
  background-image:radial-gradient(circle at 88% 12%,rgba(183,226,46,.18),transparent 46%);
}
.seg-tabs{display:inline-flex;gap:8px;border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-pill);padding:5px;margin-bottom:36px;}
.seg-tab{padding:8px 20px;border-radius:var(--radius-pill);font-size:13px;color:rgba(255,255,255,.66);letter-spacing:.06em;}
.seg-tab.active{background:var(--primary);color:var(--ink);font-weight:600;}
.progress-top{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.progress-title{font-size:1.5rem;font-weight:700;}
.progress-title small{display:block;font-size:.92rem;font-weight:400;color:rgba(255,255,255,.6);margin-top:8px;letter-spacing:0;}
.progress-num{font-size:clamp(2.8rem,7vw,4.4rem);font-weight:800;color:var(--primary);line-height:1;letter-spacing:-.03em;}
.progress-track{height:6px;border-radius:var(--radius-pill);background:rgba(255,255,255,.16);margin:34px 0 30px;overflow:hidden;}
.progress-fill{height:100%;width:0;border-radius:var(--radius-pill);background:var(--primary);transition:width .8s var(--ease);}
.node-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.node-item{display:flex;flex-direction:column;gap:12px;}
.node-dot{width:12px;height:12px;border-radius:50%;border:2px solid rgba(255,255,255,.35);}
.node-item.done .node-dot{background:var(--primary);border-color:var(--primary);}
.node-item.active .node-dot{border-color:var(--primary);background:transparent;animation:breathe 2s var(--ease) infinite;}
@keyframes breathe{0%,100%{transform:scale(1);}50%{transform:scale(1.18);}}
.node-name{font-size:.94rem;color:rgba(255,255,255,.86);}
.node-time{font-size:12px;color:rgba(255,255,255,.45);letter-spacing:.06em;}
@media (max-width:991px){
  .progress-block{padding:36px 24px;border-radius:22px;}
  .node-row{grid-template-columns:1fr;gap:0;}
  .node-item{flex-direction:row;gap:16px;padding:16px 0 16px 22px;border-left:1px solid rgba(255,255,255,.2);position:relative;}
  .node-dot{position:absolute;left:-7px;top:22px;}
  .node-text{display:flex;flex-direction:column;}
}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--ink);padding:112px 0;text-align:center;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:.16;
}
.cta-band .container{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:clamp(1.6rem,3vw,2.3rem);margin-bottom:16px;}
.cta-band p{color:rgba(255,255,255,.66);max-width:40em;margin:0 auto 36px;}
@media (max-width:991px){.cta-band{padding:72px 0;}}

/* ---------- News ---------- */
.filter-pills{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:36px;}
.filter-pill{
  padding:8px 18px;border-radius:var(--radius-pill);border:1px solid var(--line);
  font-size:13px;color:var(--muted);background:var(--surface);letter-spacing:.04em;
  transition:border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease);
}
.filter-pill.active,.filter-pill:hover{border-color:var(--primary);color:var(--ink);background:rgba(183,226,46,.14);}
.news-lead{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;margin-bottom:24px;}
.news-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-sm);overflow:hidden;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.news-card:hover{transform:translateY(-2px);border-color:var(--primary);box-shadow:var(--shadow-lg);color:var(--ink-2);}
.news-cover{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-img);overflow:hidden;margin-bottom:18px;transition:transform .34s var(--ease);}
.news-card:hover .news-cover{transform:scale(1.03);}
.news-title{font-size:1.16rem;font-weight:600;line-height:1.4;margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-summary{color:var(--muted);font-size:.94rem;margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);letter-spacing:.04em;}
.news-side{display:grid;gap:24px;align-content:start;}
.news-mini{display:grid;grid-template-columns:150px 1fr;gap:18px;align-items:center;}
.news-mini .news-cover{margin:0;height:100%;aspect-ratio:4/3;}
.news-mini .news-title{margin-top:10px;}
.news-more{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:8px;}
.news-more .news-card{padding:18px;}
.news-more .news-title{font-size:1rem;}
.news-more .news-summary{display:none;}
.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  border:1px dashed var(--line);border-radius:var(--radius-card);background:rgba(255,255,255,.6);
  color:var(--muted);text-align:center;padding:40px 20px;
}
.empty-state .shape{width:64px;height:64px;border:1px solid var(--line);border-radius:14px;position:relative;}
.empty-state .shape::after{content:"";position:absolute;inset:16px;border:1px solid var(--primary);border-radius:6px;}
@media (max-width:991px){
  .news-lead{grid-template-columns:1fr;}
  .news-more{grid-template-columns:1fr 1fr;}
}
@media (max-width:575px){
  .news-mini{grid-template-columns:1fr;}
  .news-more{grid-template-columns:1fr;}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--line);position:relative;
}
.accordion-item:first-child{border-top:1px solid var(--line);}
.accordion-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);
  transform:scaleY(0);transform-origin:top;transition:transform .24s var(--ease);
}
.accordion-item:has(.accordion-button:not(.collapsed))::before{transform:scaleY(1);}
.accordion-button{
  background:transparent;color:var(--ink-2);font-weight:600;font-size:1.04rem;
  padding:24px 44px 24px 20px;box-shadow:none !important;border-radius:0 !important;
  transition:padding-left .24s var(--ease),color .22s var(--ease);
}
.accordion-button:not(.collapsed){color:var(--ink);padding-left:26px;}
.accordion-button::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;font-size:.8rem;color:var(--muted);
  width:auto;height:auto;transition:transform .24s var(--ease),color .22s var(--ease);
}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--tertiary);}
.accordion-body{padding:0 44px 26px 26px;color:var(--muted);font-size:.96rem;}
@media (max-width:575px){.accordion-button{padding:20px 38px 20px 16px;font-size:.98rem;}.accordion-body{padding:0 24px 22px 20px;}}

/* ---------- Trust ---------- */
.trust-row{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;border-top:1px solid var(--line);padding-top:40px;}
.trust-item{display:flex;align-items:center;gap:14px;font-size:.95rem;color:var(--muted);letter-spacing:.04em;}
.trust-item i{font-size:1.2rem;color:var(--tertiary);}
@media (max-width:991px){.trust-row{grid-template-columns:1fr 1fr;gap:20px;}}

/* ---------- End CTA ---------- */
.end-cta{
  background:var(--surface);border:1px solid var(--line);border-radius:28px;
  padding:52px 48px;display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;
  box-shadow:var(--shadow-sm);
}
.end-points{display:grid;gap:14px;margin:24px 0 0;}
.end-points li{display:flex;gap:12px;align-items:flex-start;color:var(--muted);font-size:.95rem;}
.end-points i{color:var(--primary-dark);margin-top:5px;font-size:.85rem;}
.end-cta-side{display:flex;flex-direction:column;gap:14px;align-items:flex-start;}
@media (max-width:991px){.end-cta{grid-template-columns:1fr;padding:34px 24px;border-radius:22px;}}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:0;padding-bottom:calc(24px + env(safe-area-inset-bottom));}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding:76px 0 48px;}
.footer-brand{color:#fff;font-size:1.3rem;font-weight:800;display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;}
.footer-brand::after{content:"";width:8px;height:8px;border-radius:2px;background:var(--primary);}
.footer-note{font-size:.92rem;color:rgba(255,255,255,.6);max-width:24em;}
.footer-social{display:flex;gap:12px;margin-top:22px;}
.footer-social a{
  width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.72);
}
.footer-social a:hover{border-color:var(--primary);color:var(--primary);}
.footer-col h4{font-size:13px;letter-spacing:.14em;color:rgba(255,255,255,.5);font-weight:600;margin-bottom:20px;text-transform:uppercase;}
.footer-links li{margin-bottom:12px;}
.footer-links a{color:rgba(255,255,255,.78);font-size:.94rem;}
.footer-links a:hover{color:var(--primary);}
.footer-form .field{margin-bottom:14px;}
.footer-form label{display:block;font-size:13px;color:rgba(255,255,255,.55);margin-bottom:8px;letter-spacing:.04em;}
.footer-form input,.footer-form select{
  width:100%;padding:14px 18px;border-radius:var(--radius-input);
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);color:#fff;
  font-size:.94rem;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.footer-form input::placeholder{color:rgba(255,255,255,.38);}
.footer-form input:focus,.footer-form select:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(183,226,46,.28);
  background:rgba(255,255,255,.1);
}
.footer-form select option{color:var(--ink);}
.footer-form .btn-pill{width:100%;justify-content:center;}
.form-tip{font-size:12px;color:rgba(255,255,255,.44);margin-top:10px;letter-spacing:.04em;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:26px 0 8px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.46);letter-spacing:.04em;
}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr;gap:0;padding:48px 0 32px;}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.12);padding:20px 0;}
  .footer-col h4{margin-bottom:0;display:flex;align-items:center;justify-content:space-between;cursor:pointer;color:rgba(255,255,255,.68);}
  .footer-col h4::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:.7rem;transition:transform .24s var(--ease);}
  .footer-col.open h4::after{transform:rotate(180deg);}
  .footer-col .col-body{display:none;padding-top:18px;}
  .footer-col.open .col-body{display:block;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (min-width:992px){.footer-col .col-body{display:block !important;}}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-inview{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --primary:#B7E22E;
  --primary-deep:#9FD01A;
  --accent:#FF6A3D;
  --tertiary:#2E6F63;
  --ink:#16190F;
  --ink-deep:#0D0F0B;
  --paper:#F4F2EA;
  --surface:#FFFFFF;
  --surface-2:#EAE7DC;
  --line:#D9D5C7;
  --muted:#6E6E62;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(13,15,11,.04), 0 12px 32px -18px rgba(13,15,11,.18);
  --shadow-2:0 2px 4px rgba(13,15,11,.06), 0 20px 44px -20px rgba(13,15,11,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}

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

html{-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}

:focus-visible{outline:2px solid var(--primary-deep);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
}
@media (min-width:1400px){
  .container{max-width:1280px}
}
@media (max-width:767.98px){
  .container{padding:0 20px}
}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(244,242,234,.94);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .24s var(--ease), box-shadow .24s var(--ease);
}
.site-header.scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 14px 34px -28px rgba(13,15,11,.6);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:22px;
  font-weight:800;
  letter-spacing:-.03em;
  color:var(--ink);
  white-space:nowrap;
}
.brand-mark{
  width:11px;
  height:11px;
  border-radius:3px;
  background:var(--primary);
  box-shadow:0 0 0 4px rgba(183,226,46,.24);
}
.desk-nav{
  display:flex;
  align-items:center;
  gap:30px;
  margin-left:auto;
  margin-right:auto;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  padding:6px 2px;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  height:2px;
  width:0;
  background:var(--primary-deep);
  border-radius:2px;
  transition:width .24s var(--ease);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after,.nav-link.active::after{width:100%}
.nav-link.active{color:var(--ink);font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:44px;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink);
  cursor:pointer;
  transition:transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.icon-btn:hover{transform:translateY(-2px);border-color:var(--ink);box-shadow:var(--shadow-1)}
.btn-pill{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:14px 28px;
  border:none;
  border-radius:var(--radius-pill);
  background:var(--primary);
  color:var(--ink-deep);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:background .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.btn-pill:hover{background:var(--primary-deep);transform:translateY(-2px);box-shadow:0 1px 0 var(--ink-deep) inset,0 0 0 1px var(--ink-deep) inset}
.btn-pill:active{transform:translateY(0)}
.btn-pill i{transition:transform .22s var(--ease)}
.btn-pill:hover i{transform:translateX(4px)}
.btn-pill-sm{padding:11px 22px;font-size:14px}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--radius-pill);
  border:1px solid var(--ink);
  background:transparent;
  color:var(--ink);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:background .22s var(--ease), color .22s var(--ease), transform .22s var(--ease);
}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px)}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  background:var(--surface);
  cursor:pointer;
  padding:0;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
}
.nav-toggle span{
  display:block;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .24s var(--ease), opacity .24s var(--ease);
}

/* 抽屉 */
.drawer{
  position:fixed;
  inset:0;
  z-index:1100;
  pointer-events:none;
}
.drawer-mask{
  position:absolute;
  inset:0;
  background:rgba(13,15,11,.5);
  opacity:0;
  transition:opacity .24s var(--ease);
}
.drawer-panel{
  position:absolute;
  top:0;
  left:0;
  right:0;
  background:var(--paper);
  border-bottom-left-radius:24px;
  border-bottom-right-radius:24px;
  padding:22px 20px 28px;
  transform:translateY(-102%);
  transition:transform .24s var(--ease);
  max-height:90vh;
  overflow-y:auto;
}
.drawer.open{pointer-events:auto}
.drawer.open .drawer-mask{opacity:1}
.drawer.open .drawer-panel{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-links{display:grid;gap:4px}
.drawer-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:52px;
  padding:0 6px;
  font-size:17px;
  font-weight:600;
  border-bottom:1px solid var(--line);
  color:var(--ink);
}
.drawer-links a i{font-size:13px;color:var(--muted)}
.drawer-links a.active{color:var(--tertiary)}
.drawer-cta{margin-top:20px;display:grid;gap:12px}
.drawer-contact{margin-top:22px;font-size:13px;color:var(--muted);letter-spacing:.04em}

/* 底部 Tab */
.tabbar{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:1001;
  display:none;
  background:rgba(255,255,255,.97);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar a{
  position:relative;
  flex:1;
  min-height:58px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:3px;
  font-size:11px;
  letter-spacing:.02em;
  color:var(--muted);
  transition:color .2s var(--ease);
}
.tabbar a i{font-size:17px}
.tabbar a.active{color:var(--ink);font-weight:600}
.tabbar a.active::before{
  content:"";
  position:absolute;
  top:0;
  left:50%;
  transform:translateX(-50%);
  width:26px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}

/* ============ 文章页头 ============ */
.page-head{
  position:relative;
  padding:52px 0 40px;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(244,242,234,.2) 0%, rgba(244,242,234,.96) 78%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  overflow:hidden;
}
.breadcrumb-nav{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.04em;
  color:var(--muted);
  margin-bottom:24px;
}
.breadcrumb-nav a{color:var(--muted);transition:color .2s var(--ease)}
.breadcrumb-nav a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px}
.breadcrumb-nav .sep{opacity:.55}
.breadcrumb-nav .current{
  color:var(--ink);
  max-width:min(100%,520px);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.badge-tag{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 15px;
  border-radius:var(--radius-pill);
  background:rgba(183,226,46,.28);
  color:var(--ink);
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  margin-bottom:20px;
}
.badge-tag::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--tertiary);
}
.page-head h1{
  font-size:clamp(2rem,4.4vw,3.5rem);
  font-weight:800;
  line-height:1.06;
  letter-spacing:-.03em;
  max-width:20ch;
}
.head-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 22px;
  margin-top:26px;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:13px;
  letter-spacing:.05em;
  color:var(--muted);
}
.head-meta span{display:inline-flex;align-items:center;gap:8px}
.head-meta i{color:var(--tertiary)}
.head-actions{display:flex;gap:10px;margin-left:auto}
.share-btn{
  width:44px;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink);
  cursor:pointer;
  transition:transform .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}
.share-btn:hover{transform:translateY(-2px);border-color:var(--primary-deep);color:var(--tertiary)}

/* ============ 文章布局 ============ */
.article-main{padding:56px 0 88px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:40px;
}
.article-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:clamp(24px,4vw,52px);
}
.article-body{
  max-width:760px;
  margin:0 auto;
  font-size:17px;
  line-height:1.85;
}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  position:relative;
  font-size:clamp(1.35rem,2.3vw,1.8rem);
  font-weight:700;
  line-height:1.28;
  margin:2.1em 0 .7em;
  padding-left:18px;
  scroll-margin-top:100px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.18em;
  bottom:.18em;
  width:4px;
  border-radius:2px;
  background:var(--primary);
}
.article-body h3{
  font-size:1.2rem;
  font-weight:600;
  margin:1.7em 0 .55em;
  scroll-margin-top:100px;
}
.article-body h4{font-size:1.05rem;font-weight:600;margin:1.4em 0 .5em}
.article-body p{margin:0 0 1.2em;color:#22261A}
.article-body strong{font-weight:700;color:var(--ink)}
.article-body a{color:var(--tertiary);text-decoration:underline;text-underline-offset:4px;font-weight:500}
.article-body a:hover{color:var(--ink)}
.article-body img{
  width:100%;
  height:auto;
  border-radius:var(--radius-md);
  margin:1.7em 0;
}
.article-body figure{margin:1.7em 0}
.article-body figcaption{
  margin-top:10px;
  text-align:center;
  font-size:13px;
  letter-spacing:.04em;
  color:var(--muted);
}
.article-body blockquote{
  margin:1.7em 0;
  padding:16px 22px;
  border-left:3px solid var(--primary);
  background:#FAF8EF;
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:#3C4132;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{margin:0 0 1.4em}
.article-body li{
  position:relative;
  padding-left:24px;
  margin-bottom:.55em;
  color:#22261A;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:2px;
  top:.74em;
  width:7px;
  height:7px;
  border-radius:2px;
  background:var(--primary);
}
.article-body ol{counter-reset:art-li}
.article-body ol li{counter-increment:art-li}
.article-body ol li::before{
  content:counter(art-li,decimal-leading-zero);
  position:absolute;
  left:0;
  top:0;
  font-size:.82em;
  font-weight:700;
  color:var(--tertiary);
  letter-spacing:.02em;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  font-size:15px;
  margin:0;
  min-width:520px;
}
.article-body .table-scroll{
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  margin:1.6em 0;
}
.article-body th,.article-body td{
  padding:13px 16px;
  text-align:left;
  border-bottom:1px solid var(--line);
}
.article-body th{background:var(--surface-2);font-weight:600;white-space:nowrap}
.article-body tr:last-child td{border-bottom:none}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2.4em 0}

/* 空态 */
.empty-state{
  text-align:center;
  padding:56px 20px;
  border:1px dashed var(--line);
  border-radius:var(--radius-lg);
  background:#FAF8F0;
}
.empty-state .geo{
  width:72px;
  height:72px;
  margin:0 auto 22px;
  border-radius:22px;
  border:1px solid var(--line);
  background:
    radial-gradient(circle at 30% 30%, rgba(183,226,46,.4), transparent 62%),
    radial-gradient(circle at 72% 70%, rgba(46,111,99,.28), transparent 60%);
}
.empty-state h3{font-size:1.25rem;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px}

/* 侧栏 */
.article-aside{display:grid;gap:20px;align-content:start}
.aside-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:22px;
}
.aside-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--muted);
  text-transform:uppercase;
  margin-bottom:16px;
}
.toc-list{display:grid;gap:2px}
.toc-list a{
  display:block;
  padding:9px 10px;
  border-left:2px solid var(--line);
  font-size:14px;
  line-height:1.5;
  color:var(--muted);
  transition:color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.toc-list a:hover,.toc-list a.current{
  color:var(--ink);
  border-left-color:var(--primary);
  background:#FBF9F0;
}
.toc-empty{font-size:13px;color:var(--muted)}
.rel-item{
  display:flex;
  gap:12px;
  padding:12px 0;
  border-bottom:1px solid var(--line);
}
.rel-item:last-child{border-bottom:none;padding-bottom:0}
.rel-item:first-child{padding-top:0}
.rel-item img{
  width:76px;
  height:54px;
  object-fit:cover;
  border-radius:10px;
  flex-shrink:0;
}
.rel-item h4{
  font-size:14px;
  font-weight:600;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:4px;
}
.rel-item span{font-size:12px;color:var(--muted);letter-spacing:.04em}
.rel-item a:hover h4{color:var(--tertiary)}

/* 章节导航 */
.chapter-nav{
  display:grid;
  gap:16px;
  grid-template-columns:repeat(2,minmax(0,1fr));
  margin-top:26px;
}
.chapter-link{
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:22px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--surface);
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease);
}
.chapter-link:hover{transform:translateY(-2px);border-color:var(--primary-deep);box-shadow:var(--shadow-2)}
.chapter-link small{font-size:12px;letter-spacing:.12em;color:var(--muted)}
.chapter-link strong{font-size:16px;font-weight:600;line-height:1.5}
.chapter-link.next{align-items:flex-end;text-align:right}

/* CTA 带 */
.cta-band{
  background:var(--ink-deep);
  color:var(--paper);
  padding:96px 0;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  width:560px;
  height:560px;
  right:-180px;
  top:-220px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(183,226,46,.22), transparent 68%);
}
.cta-band h2{
  font-size:clamp(1.7rem,3.2vw,2.6rem);
  font-weight:800;
  line-height:1.15;
  margin-bottom:16px;
  position:relative;
}
.cta-band p{
  color:rgba(244,242,234,.72);
  max-width:560px;
  margin:0 auto 34px;
  font-size:16px;
  position:relative;
}
.btn-mega{
  display:inline-flex;
  align-items:center;
  gap:12px;
  padding:22px 54px;
  border-radius:var(--radius-pill);
  background:var(--primary);
  color:var(--ink-deep);
  font-size:17px;
  font-weight:700;
  letter-spacing:.02em;
  position:relative;
  transition:background .24s var(--ease), transform .24s var(--ease), box-shadow .24s var(--ease);
}
.btn-mega:hover{
  background:var(--primary-deep);
  transform:translateY(-3px);
  box-shadow:0 0 0 8px rgba(183,226,46,.14), 0 26px 50px -26px rgba(183,226,46,.6);
}
.btn-mega i{transition:transform .24s var(--ease)}
.btn-mega:hover i{transform:translateX(6px)}
.cta-note{
  margin-top:20px;
  font-size:13px;
  letter-spacing:.08em;
  color:rgba(244,242,234,.5);
  position:relative;
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-deep);
  color:var(--paper);
  padding:76px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr .8fr .8fr 1.3fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(244,242,234,.14);
}
.footer-brand{
  font-size:22px;
  font-weight:800;
  letter-spacing:-.03em;
  margin-bottom:14px;
}
.footer-note{
  font-size:14px;
  line-height:1.75;
  color:rgba(244,242,234,.62);
  max-width:34ch;
}
.footer-col h4{
  font-size:12px;
  font-weight:600;
  letter-spacing:.16em;
  color:rgba(244,242,234,.5);
  margin-bottom:18px;
}
.footer-col .col-body{display:block}
.footer-links{display:grid;gap:11px}
.footer-links a{
  font-size:14px;
  color:rgba(244,242,234,.78);
  transition:color .2s var(--ease), padding-left .2s var(--ease);
}
.footer-links a:hover{color:var(--primary);padding-left:4px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:40px;
  height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--radius-pill);
  border:1px solid rgba(244,242,234,.2);
  color:rgba(244,242,234,.8);
  transition:background .22s var(--ease), color .22s var(--ease), transform .22s var(--ease);
}
.footer-social a:hover{background:var(--primary);color:var(--ink-deep);transform:translateY(-2px)}
.footer-form{display:grid;gap:14px}
.footer-form .field{display:grid;gap:7px}
.footer-form label{font-size:13px;color:rgba(244,242,234,.6)}
.footer-form input,.footer-form select{
  width:100%;
  padding:14px 18px;
  border-radius:var(--radius-sm);
  border:1px solid rgba(244,242,234,.2);
  background:rgba(255,255,255,.05);
  color:var(--paper);
  font-size:14px;
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.footer-form input::placeholder{color:rgba(244,242,234,.38)}
.footer-form input:focus,.footer-form select:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(183,226,46,.24);
}
.footer-form select option{color:var(--ink)}
.footer-form .btn-pill{justify-content:center;width:100%;margin-top:2px}
.form-tip{font-size:12px;color:rgba(244,242,234,.42);line-height:1.6}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:24px;
  font-size:13px;
  color:rgba(244,242,234,.45);
  letter-spacing:.03em;
}
.footer-col .col-head{display:none}

/* 滚动进入动画 */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s var(--ease), transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}

/* ============ 断点 ============ */
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:48px}
  .article-aside{position:sticky;top:96px}
}
@media (max-width:1199.98px){
  .article-aside{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991.98px){
  .desk-nav{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn-pill-sm{display:none}
  .tabbar{display:flex}
  body{padding-bottom:calc(72px + env(safe-area-inset-bottom))}
  .site-footer{padding-bottom:34px}
  .page-head{padding:40px 0 32px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .article-main{padding:36px 0 64px}
  .article-layout{gap:24px}
  .article-aside{grid-template-columns:minmax(0,1fr)}
  .article-card{padding:22px 18px;border-radius:16px}
  .article-body{font-size:16px;line-height:1.8}
  .chapter-nav{grid-template-columns:minmax(0,1fr)}
  .chapter-link.next{align-items:flex-start;text-align:left}
  .cta-band{padding:64px 0}
  .btn-mega{padding:18px 34px;font-size:16px;width:100%;justify-content:center}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:0;padding-bottom:20px}
  .footer-col{border-bottom:1px solid rgba(244,242,234,.14);padding:16px 0}
  .footer-col h4{margin-bottom:0}
  .footer-col .col-head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    cursor:pointer;
    min-height:44px;
  }
  .footer-col .col-head i{transition:transform .24s var(--ease);font-size:12px}
  .footer-col.open .col-head i{transform:rotate(180deg)}
  .footer-col .col-body{display:none;padding-top:14px}
  .footer-col.open .col-body{display:block}
  .footer-col:first-child .col-body{display:block}
  .footer-brand{margin-bottom:10px}
  .cta-band::after{display:none}
}
@media (max-width:575.98px){
  .container{padding:0 16px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .head-meta{gap:10px 16px}
  .head-actions{margin-left:0;width:100%}
}

/* roulang page: category1 */
:root{
  --primary:#B7E22E;
  --primary-deep:#A5CE24;
  --accent:#FF6A3D;
  --tertiary:#2E6F63;
  --ink:#0D0F0B;
  --ink-2:#16190F;
  --paper:#F4F2EA;
  --surface:#FFFFFF;
  --surface-2:#EAE7DC;
  --line:#D9D5C7;
  --muted:#6E6E62;
  --radius-card:20px;
  --radius-img:14px;
  --radius-input:12px;
  --shadow-card:0 1px 2px rgba(13,15,11,.04), 0 12px 32px -18px rgba(13,15,11,.18);
  --shadow-hover:0 2px 4px rgba(13,15,11,.06), 0 20px 44px -20px rgba(13,15,11,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:240ms;
  --gutter:28px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--ink-2);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink-2);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--tertiary);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
h1,h2,h3,h4{margin:0;color:var(--ink-2);letter-spacing:-.02em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:var(--gutter);
  padding-right:var(--gutter);
}
@media (min-width:1400px){ .container{max-width:1280px;} }
@media (max-width:575.98px){ .container{padding-left:20px;padding-right:20px;} }

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(244,242,234,.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:20px;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink-2);
}
.brand .brand-dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 4px rgba(183,226,46,.28);
}
.desk-nav{display:flex;align-items:center;gap:30px;}
.desk-nav .nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  padding:6px 0;
}
.desk-nav .nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  background:var(--primary);
  transition:width var(--dur) var(--ease);
}
.desk-nav .nav-link:hover::after{width:100%;}
.desk-nav .nav-link.active{color:var(--tertiary);}
.desk-nav .nav-link.active::after{width:100%;background:var(--tertiary);}
.header-actions{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--surface);
  color:var(--ink-2);
  cursor:pointer;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.icon-btn:hover{border-color:var(--primary);transform:translateY(-2px);}
.menu-toggle{display:none;}

/* 移动抽屉 */
.drawer{
  position:fixed;
  inset:0 0 auto 0;
  z-index:1040;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:0 20px 44px -20px rgba(13,15,11,.24);
  transform:translateY(-102%);
  transition:transform var(--dur) var(--ease);
  padding:20px var(--gutter) 26px;
  max-height:86vh;
  overflow-y:auto;
}
.drawer.open{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-brand{font-size:19px;font-weight:800;color:var(--ink-2);}
.drawer-list{display:grid;gap:2px;}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;
  padding:0 4px;
  font-size:16px;
  font-weight:500;
  border-bottom:1px solid var(--line);
}
.drawer-list a.active{color:var(--tertiary);}
.drawer-list a i{font-size:13px;color:var(--muted);}
.drawer-mask{
  position:fixed;inset:0;z-index:1035;
  background:rgba(13,15,11,.5);
  opacity:0;visibility:hidden;
  transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible;}

/* 底部 Tab */
.bottom-tab{
  display:none;
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:1040;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.bottom-tab .tab-inner{display:grid;grid-template-columns:repeat(5,1fr);}
.bottom-tab a{
  position:relative;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;
  min-height:64px;
  font-size:11px;
  letter-spacing:.04em;
  color:var(--muted);
}
.bottom-tab a i{font-size:17px;}
.bottom-tab a::before{
  content:"";
  position:absolute;top:0;left:50%;
  transform:translateX(-50%) scaleX(0);
  width:34px;height:2px;border-radius:2px;
  background:var(--primary);
  transition:transform var(--dur) var(--ease);
}
.bottom-tab a.active{color:var(--tertiary);}
.bottom-tab a.active::before{transform:translateX(-50%) scaleX(1);background:var(--tertiary);}
@media (max-width:991.98px){
  .desk-nav{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-actions .btn-pill{display:none;}
  .bottom-tab{display:block;}
  body{padding-bottom:calc(72px + env(safe-area-inset-bottom));}
}

/* ============ 按钮 / 徽章 ============ */
.btn-pill{
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 30px;
  border-radius:999px;
  background:var(--primary);
  color:var(--ink);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.btn-pill i{transition:transform var(--dur) var(--ease);}
.btn-pill:hover{background:var(--primary-deep);transform:translateY(-2px);border-color:var(--ink);color:var(--ink);box-shadow:0 14px 30px -18px rgba(13,15,11,.5);}
.btn-pill:hover i{transform:translateX(4px);}
.btn-pill:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 28px;
  border-radius:999px;
  background:transparent;
  border:1px solid var(--ink-2);
  color:var(--ink-2);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.btn-ghost:hover{background:var(--ink-2);color:var(--paper);transform:translateY(-2px);}
.btn-ghost.on-dark{border-color:rgba(244,242,234,.55);color:var(--paper);}
.btn-ghost.on-dark:hover{background:var(--paper);color:var(--ink);}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--tertiary);
}
.link-arrow i{transition:transform var(--dur) var(--ease);}
.link-arrow:hover i{transform:translateX(4px);}
.badge-pill{
  display:inline-flex;align-items:center;
  padding:5px 14px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.08em;
  font-weight:600;
}
.badge-primary{background:rgba(183,226,46,.32);color:#4B5D0C;}
.badge-accent{background:rgba(255,106,61,.15);color:#9B3517;}
.badge-line{border:1px solid var(--line);color:var(--muted);}

/* ============ 次级页头 ============ */
.page-head{
  position:relative;
  padding:92px 0 76px;
  background-color:var(--paper);
  background-image:linear-gradient(rgba(244,242,234,.93),rgba(244,242,234,.98)),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-head::after{
  content:"";
  position:absolute;right:-120px;top:-90px;
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(183,226,46,.35),rgba(183,226,46,0) 70%);
  pointer-events:none;
}
.breadcrumb-line{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;letter-spacing:.06em;color:var(--muted);
  margin-bottom:22px;
}
.breadcrumb-line a{color:var(--muted);}
.breadcrumb-line a:hover{color:var(--tertiary);}
.breadcrumb-line span{opacity:.6;}
.breadcrumb-line .current{color:var(--ink-2);font-weight:600;}
.page-head h1{
  font-size:clamp(2.4rem,6vw,3.6rem);
  font-weight:800;
  line-height:1.06;
  letter-spacing:-.03em;
  margin-bottom:20px;
}
.page-head .lede{
  max-width:660px;
  font-size:17px;
  color:var(--muted);
  line-height:1.85;
}
.head-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.head-metrics{
  display:flex;flex-wrap:wrap;gap:36px;
  margin-top:46px;
  padding-top:30px;
  border-top:1px solid var(--line);
}
.head-metrics .m-num{
  font-size:32px;font-weight:800;letter-spacing:-.03em;
  font-variant-numeric:tabular-nums;color:var(--ink-2);
  line-height:1.1;
}
.head-metrics .m-label{font-size:13px;color:var(--muted);letter-spacing:.08em;margin-top:6px;}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section.on-paper-2{background:var(--surface-2);}
.section-head{margin-bottom:52px;max-width:760px;}
.section-head .eyebrow{
  display:inline-block;
  font-size:12px;letter-spacing:.16em;font-weight:700;
  color:var(--tertiary);
  margin-bottom:14px;
}
.section-head h2{
  font-size:clamp(1.7rem,3.2vw,2.5rem);
  font-weight:700;
  line-height:1.16;
  margin-bottom:16px;
}
.section-head p{color:var(--muted);font-size:16px;}
.section-head-row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;
  margin-bottom:52px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  padding:8px 16px;border-radius:999px;
  border:1px solid var(--line);
  background:var(--surface);
  font-size:13px;color:var(--muted);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.tag:hover{border-color:var(--primary);color:var(--ink-2);}

/* ============ 图文导览网格（本页主模块） ============ */
.guide-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:28px;
}
.guide-card{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.guide-card:hover{transform:translateY(-2px);border-color:var(--primary);box-shadow:var(--shadow-hover);}
.guide-figure{position:relative;overflow:hidden;}
.guide-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform 420ms var(--ease);}
.guide-card:hover .guide-figure img{transform:scale(1.03);}
.guide-figure .fig-index{
  position:absolute;left:18px;top:18px;
  padding:4px 12px;
  background:var(--ink);
  color:var(--paper);
  font-size:12px;letter-spacing:.14em;font-weight:700;
}
.guide-body{padding:26px 26px 28px;}
.guide-body h3{font-size:1.25rem;font-weight:600;margin:14px 0 12px;line-height:1.4;}
.guide-body p{color:var(--muted);font-size:15px;line-height:1.8;margin-bottom:20px;}
.guide-points{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px;}
.guide-points span{
  font-size:12px;color:var(--tertiary);
  padding:4px 12px;border-radius:999px;
  background:rgba(46,111,99,.08);
}
.guide-body .link-arrow{margin-top:auto;}

/* ============ 横向步骤 ============ */
.steps-row{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.step-cell{
  padding:34px 28px;
  border-right:1px solid var(--line);
  transition:background var(--dur) var(--ease);
}
.step-cell:last-child{border-right:none;}
.step-cell:hover{background:rgba(183,226,46,.12);}
.step-cell .step-num{
  font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--tertiary);
  margin-bottom:14px;display:block;
}
.step-cell h3{font-size:1.12rem;font-weight:600;margin-bottom:10px;}
.step-cell p{font-size:15px;color:var(--muted);}

/* ============ 双栏说明 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.plain-list li{
  position:relative;
  padding:16px 0 16px 24px;
  border-bottom:1px solid var(--line);
  color:var(--muted);
  font-size:16px;
}
.plain-list li::before{
  content:"";
  position:absolute;left:0;top:27px;
  width:8px;height:2px;background:var(--primary);
}
.plain-list li strong{color:var(--ink-2);font-weight:600;}
.quote-block{
  border-left:3px solid var(--primary);
  background:rgba(183,226,46,.12);
  border-radius:0 var(--radius-img) var(--radius-img) 0;
  padding:26px 28px;
  color:var(--ink-2);
  font-size:16px;
}
.media-figure{border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);}
.media-figure img{border-radius:0;aspect-ratio:4/3;object-fit:cover;}
.fig-cap{font-size:13px;color:var(--muted);margin-top:12px;letter-spacing:.04em;}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;}
.accordion-item{
  background:transparent;
  border:none;
  border-bottom:1px solid var(--line);
}
.accordion-item:first-child{border-top:1px solid var(--line);}
.accordion-button{
  position:relative;
  width:100%;
  background:transparent;
  border:none;
  box-shadow:none;
  padding:24px 54px 24px 22px;
  font-size:17px;
  font-weight:600;
  color:var(--ink-2);
  text-align:left;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.accordion-button::before{
  content:"";
  position:absolute;left:0;top:18px;bottom:18px;
  width:3px;border-radius:3px;
  background:var(--primary);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform var(--dur) var(--ease);
}
.accordion-button:not(.collapsed)::before{transform:scaleY(1);}
.accordion-button:not(.collapsed){background:rgba(183,226,46,.10);color:var(--ink-2);}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--primary);outline-offset:-2px;}
.accordion-button::after{
  content:"\f078";
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:20px;top:50%;
  transform:translateY(-50%);
  font-size:13px;color:var(--muted);
  transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);
  background-image:none;
  width:auto;height:auto;
}
.accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(180deg);color:var(--tertiary);}
.accordion-body{
  padding:0 54px 26px 22px;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.85;
}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;
  padding:104px 0;
  background-image:linear-gradient(rgba(13,15,11,.86),rgba(13,15,11,.92)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  color:var(--paper);
  text-align:center;
}
.cta-band h2{
  color:var(--paper);
  font-size:clamp(1.8rem,3.6vw,2.6rem);
  font-weight:800;
  line-height:1.14;
  margin-bottom:18px;
}
.cta-band p{color:rgba(244,242,234,.76);max-width:620px;margin:0 auto 38px;font-size:16px;}
.cta-band .btn-pill{padding:19px 44px;font-size:17px;}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:16px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:rgba(244,242,234,.72);
  padding:80px 0 0;
  font-size:15px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.5fr;
  gap:44px;
  padding-bottom:56px;
}
.footer-col h4{
  color:var(--paper);
  font-size:13px;
  font-weight:600;
  letter-spacing:.16em;
  margin-bottom:20px;
}
.footer-brand{
  font-size:22px;font-weight:800;color:var(--paper);
  letter-spacing:-.02em;margin-bottom:14px;
}
.footer-note{color:rgba(244,242,234,.62);font-size:14.5px;line-height:1.8;max-width:320px;}
.footer-social{display:flex;gap:12px;margin-top:22px;}
.footer-social a{
  width:42px;height:42px;border-radius:999px;
  border:1px solid rgba(244,242,234,.2);
  display:inline-flex;align-items:center;justify-content:center;
  color:rgba(244,242,234,.8);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.footer-social a:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.footer-links li{margin-bottom:12px;}
.footer-links a{color:rgba(244,242,234,.68);font-size:14.5px;}
.footer-links a:hover{color:var(--primary);}
.footer-form{display:grid;gap:14px;}
.field label{display:block;font-size:13px;color:rgba(244,242,234,.6);margin-bottom:7px;letter-spacing:.04em;}
.field input,.field select{
  width:100%;
  padding:13px 16px;
  border-radius:var(--radius-input);
  border:1px solid rgba(244,242,234,.22);
  background:rgba(244,242,234,.06);
  color:var(--paper);
  font-size:14.5px;
  font-family:inherit;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.field input::placeholder{color:rgba(244,242,234,.38);}
.field input:focus,.field select:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(183,226,46,.25);
}
.field select option{color:#16190F;}
.footer-form .btn-pill{justify-content:center;width:100%;color:var(--ink);}
.form-tip{font-size:12.5px;color:rgba(244,242,234,.45);}
.footer-bottom{
  border-top:1px solid rgba(244,242,234,.12);
  padding:24px 0 30px;
  display:flex;flex-wrap:wrap;gap:12px 26px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(244,242,234,.48);
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-bottom{padding-bottom:34px;}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-note{max-width:none;}
}

/* ============ 视口进入动效 ============ */
.reveal{opacity:0;transform:translateY(20px);transition:opacity 600ms var(--ease),transform 600ms var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .page-head{padding:64px 0 56px;}
  .guide-grid{grid-template-columns:1fr;}
  .steps-row{grid-template-columns:1fr;}
  .step-cell{border-right:none;border-bottom:1px solid var(--line);}
  .step-cell:last-child{border-bottom:none;}
  .split{grid-template-columns:1fr;gap:36px;}
  .cta-band{padding:72px 0;}
}
@media (max-width:575.98px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:36px;}
  .section-head-row{margin-bottom:36px;}
  .head-metrics{gap:24px;}
  .head-metrics .m-num{font-size:26px;}
  .guide-body{padding:22px 20px 24px;}
  .btn-pill,.btn-ghost{width:100%;justify-content:center;}
  .head-actions{flex-direction:column;}
  .cta-actions{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --primary:#B7E22E;
  --primary-deep:#A5CE24;
  --primary-ink:#16190F;
  --accent:#FF6A3D;
  --tertiary:#2E6F63;
  --ink:#0D0F0B;
  --ink-2:#16190F;
  --paper:#F4F2EA;
  --surface:#FFFFFF;
  --surface-2:#EAE7DC;
  --line:#D9D5C7;
  --muted:#6E6E62;
  --radius-card:20px;
  --radius-img:14px;
  --radius-field:12px;
  --shadow-1:0 1px 2px rgba(13,15,11,.04),0 12px 32px -18px rgba(13,15,11,.18);
  --shadow-2:0 2px 4px rgba(13,15,11,.06),0 20px 44px -20px rgba(13,15,11,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:72px;
  --bs-body-bg:transparent;
  --bs-body-color:#16190F;
  --bs-border-color:#D9D5C7;
  --bs-link-color:#16190F;
  --bs-link-hover-color:#16190F;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
  background:var(--paper);
  padding-bottom:calc(72px + env(safe-area-inset-bottom));
  -webkit-font-smoothing:antialiased;
}
@media (min-width:992px){body{padding-bottom:0}}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:var(--ink-2);text-decoration:none;text-underline-offset:4px}
a:hover{color:var(--ink)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-2);letter-spacing:-.02em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary-deep);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container{padding-left:28px;padding-right:28px}}
@media (min-width:1400px){.container{max-width:1280px}}
.section{padding:56px 0}
@media (min-width:768px){.section{padding:80px 0}}
@media (min-width:992px){.section{padding:104px 0}}
.section-head{max-width:720px;margin-bottom:32px}
@media (min-width:992px){.section-head{margin-bottom:52px}}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--tertiary);
  font-weight:600;
  margin-bottom:14px;
  text-transform:uppercase;
}
.h2{font-size:clamp(1.7rem,3.2vw,2.6rem);font-weight:700;line-height:1.15;letter-spacing:-.02em}
.h3{font-size:clamp(1.05rem,1.6vw,1.35rem);font-weight:600;line-height:1.4}
.lead{font-size:17px;line-height:1.85;color:var(--muted);margin-top:16px}
.muted{color:var(--muted)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(244,242,234,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 10px 30px -24px rgba(13,15,11,.5)}
.header-inner{display:flex;align-items:center;gap:20px;height:var(--nav-h)}
.brand{display:inline-flex;align-items:baseline;font-weight:800;font-size:1.28rem;letter-spacing:-.03em;color:var(--ink-2)}
.brand-mark{color:var(--ink-2)}
.brand-dot{color:var(--tertiary);font-size:.92em}
.desk-nav{display:none;align-items:center;gap:6px;margin-left:26px;flex:1}
.desk-nav .nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--ink-2);
  padding:10px 14px;border-radius:999px;
  transition:color .2s var(--ease);
}
.desk-nav .nav-link:hover{color:var(--ink)}
.desk-nav .nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.desk-nav .nav-link:hover::after{transform:scaleX(1)}
.desk-nav .nav-link.active{color:var(--tertiary);font-weight:600}
.desk-nav .nav-link.active::after{transform:scaleX(1)}
@media (min-width:992px){.desk-nav{display:flex}}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.btn-pill{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:44px;padding:12px 26px;border:none;border-radius:999px;
  background:var(--primary);color:var(--primary-ink);
  font-size:15px;font-weight:600;cursor:pointer;
  box-shadow:0 0 0 0 rgba(13,15,11,0);
  transition:transform .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-pill:hover{background:var(--primary-deep);transform:translateY(-2px);color:var(--primary-ink);box-shadow:0 0 0 1px var(--ink) inset}
.btn-pill:active{transform:translateY(0)}
.btn-pill i{transition:transform .22s var(--ease)}
.btn-pill:hover i{transform:translateX(4px)}
.btn-pill.btn-sm{min-height:40px;padding:9px 20px;font-size:14px}
.header-cta{display:none}
@media (min-width:576px){.header-cta{display:inline-flex}}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:44px;padding:12px 26px;border:1px solid var(--ink-2);border-radius:999px;
  background:transparent;color:var(--ink-2);font-size:15px;font-weight:600;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.icon-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:14px;background:var(--surface);color:var(--ink-2);cursor:pointer;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.icon-btn:hover{border-color:var(--primary-deep)}
@media (min-width:992px){.icon-btn{display:none}}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(13,15,11,.5);opacity:0;visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);z-index:1040;
}
.drawer-mask.show{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;left:0;right:0;z-index:1050;
  background:var(--paper);border-bottom-left-radius:24px;border-bottom-right-radius:24px;
  padding:20px 20px calc(28px + env(safe-area-inset-bottom));
  transform:translateY(-102%);transition:transform .24s var(--ease);
  max-height:92vh;overflow-y:auto;
}
.mobile-drawer.show{transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-links{display:grid;gap:6px}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 16px;border-radius:14px;background:var(--surface);
  border:1px solid var(--line);font-weight:600;
}
.drawer-links a.active{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.drawer-links a i{color:var(--tertiary)}
.drawer-links a.active i{color:var(--primary)}
.drawer-foot{margin-top:18px;display:grid;gap:12px}
.drawer-foot .muted{font-size:14px}

/* tabbar */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:1035;
  display:grid;grid-template-columns:repeat(5,1fr);
  background:rgba(244,242,234,.96);backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar a{
  position:relative;min-height:64px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  font-size:11px;letter-spacing:.02em;color:var(--muted);
}
.tabbar a i{font-size:17px}
.tabbar a.active{color:var(--tertiary);font-weight:600}
.tabbar a.active::before{content:"";position:absolute;top:0;left:22%;right:22%;height:2px;background:var(--primary);border-radius:0 0 2px 2px}
@media (min-width:992px){.tabbar{display:none}}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--surface-2);border-bottom:1px solid var(--line)}
.page-hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.16;filter:saturate(.8);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(244,242,234,.35) 0%,rgba(244,242,234,.92) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding:44px 0 52px}
@media (min-width:992px){.page-hero-inner{padding:64px 0 84px}}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.06em;color:var(--muted);margin-bottom:26px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--ink-2)}
.breadcrumb span.sep{color:var(--line)}
.breadcrumb .now{color:var(--ink-2);font-weight:600}
.page-hero h1{
  font-size:clamp(2.4rem,6vw,5rem);font-weight:800;line-height:1.02;letter-spacing:-.03em;
  margin-top:6px;
}
.page-hero .hero-lead{max-width:640px;margin-top:20px;font-size:17px;line-height:1.8;color:var(--muted)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;font-size:13px;letter-spacing:.04em;
  border:1px solid var(--line);background:var(--surface);color:var(--ink-2);
}
.tag i{color:var(--tertiary);font-size:12px}
.tag.tag-primary{background:var(--primary);border-color:var(--primary);color:var(--primary-ink);font-weight:600}
.tag.tag-primary i{color:var(--primary-ink)}

/* ---------- metrics ---------- */
.metric-grid{display:grid;gap:16px;grid-template-columns:repeat(2,1fr)}
@media (min-width:992px){.metric-grid{grid-template-columns:repeat(4,1fr);gap:20px}}
.metric{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 22px;box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.metric:hover{transform:translateY(-2px);border-color:var(--primary-deep);box-shadow:var(--shadow-2)}
.metric .num{font-size:clamp(2rem,4vw,2.8rem);font-weight:800;line-height:1;letter-spacing:-.04em;font-variant-numeric:tabular-nums}
.metric .lab{margin-top:12px;font-size:13px;letter-spacing:.08em;color:var(--muted)}
.metric .sub{margin-top:6px;font-size:14px;color:var(--muted);line-height:1.7}

/* ---------- timeline (本页独有) ---------- */
.timeline{position:relative;margin-top:8px}
.timeline::before{content:"";position:absolute;left:130px;top:26px;bottom:26px;width:1px;background:var(--line)}
.tl-item{
  display:grid;grid-template-columns:112px minmax(0,1fr);gap:36px;
  padding:28px 0;position:relative;
}
.tl-num{
  font-size:clamp(2.2rem,3.6vw,3.2rem);font-weight:800;line-height:1;letter-spacing:-.04em;
  color:transparent;-webkit-text-stroke:1px var(--line);font-variant-numeric:tabular-nums;
  transition:color .24s var(--ease),-webkit-text-stroke-color .24s var(--ease);
}
.tl-item:hover .tl-num{color:var(--primary);-webkit-text-stroke-color:var(--primary-deep)}
.tl-body h3{font-size:1.2rem;font-weight:600;margin-bottom:10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tl-body p{color:var(--muted);font-size:15.5px;line-height:1.8;max-width:660px}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.tl-meta .tag{font-size:12px;padding:6px 14px;background:var(--surface)}
.tl-item + .tl-item{border-top:1px solid var(--line)}
@media (max-width:767px){
  .timeline::before{left:6px;top:18px;bottom:18px}
  .tl-item{grid-template-columns:minmax(0,1fr);gap:8px;padding:24px 0 24px 30px}
  .tl-num{font-size:1.7rem;-webkit-text-stroke-width:.8px}
}

/* ---------- cards ---------- */
.grid-3{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.grid-3{grid-template-columns:repeat(3,1fr)}}
.card-act{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);height:100%;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.card-act:hover{transform:translateY(-2px);border-color:var(--primary-deep);box-shadow:var(--shadow-2)}
.card-act .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:0}
.card-act .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s var(--ease)}
.card-act:hover .thumb img{transform:scale(1.03)}
.card-act .badge{
  position:absolute;left:14px;top:14px;padding:6px 14px;border-radius:999px;
  background:var(--primary);color:var(--primary-ink);font-size:12px;font-weight:600;letter-spacing:.06em;
}
.card-act .body{padding:22px}
.card-act h3{font-size:1.16rem;font-weight:600;margin-bottom:10px}
.card-act p{color:var(--muted);font-size:15px;line-height:1.8}
.card-act .meta{margin-top:16px;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);letter-spacing:.04em}

/* ---------- dark notice block ---------- */
.dark-band{
  background:var(--ink);color:#F4F2EA;border-radius:24px;
  padding:36px 24px;position:relative;overflow:hidden;
}
@media (min-width:992px){.dark-band{padding:56px 52px}}
.dark-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(183,226,46,.22) 0%,rgba(183,226,46,0) 70%);
}
.dark-band h2{color:#F4F2EA;position:relative}
.dark-band .lead{color:rgba(244,242,234,.72);position:relative}
.notice-list{position:relative;margin-top:32px;display:grid;gap:1px;background:rgba(244,242,234,.16);border:1px solid rgba(244,242,234,.16);border-radius:18px;overflow:hidden}
@media (min-width:992px){.notice-list{grid-template-columns:repeat(3,1fr)}}
.notice-item{background:rgba(244,242,234,.03);padding:26px 24px}
.notice-item i{color:var(--primary);font-size:18px}
.notice-item h3{color:#F4F2EA;font-size:1.05rem;font-weight:600;margin:14px 0 10px}
.notice-item p{color:rgba(244,242,234,.7);font-size:14.5px;line-height:1.8}

/* ---------- checklist ---------- */
.check-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.check-grid{grid-template-columns:repeat(3,1fr)}}
.check-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 24px;box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.check-card:hover{transform:translateY(-2px);border-color:var(--primary-deep)}
.check-card .step{font-size:13px;letter-spacing:.14em;color:var(--tertiary);font-weight:600}
.check-card h3{margin:14px 0 16px;font-size:1.12rem;font-weight:600}
.check-card ul{display:grid;gap:12px}
.check-card li{position:relative;padding-left:22px;color:var(--muted);font-size:15px;line-height:1.75}
.check-card li::before{
  content:"";position:absolute;left:0;top:11px;width:10px;height:2px;background:var(--primary);border-radius:2px;
}

/* ---------- FAQ ---------- */
.faq-acc{margin-top:8px;border-top:1px solid var(--line)}
.faq-acc .accordion-item{background:transparent;border:none;border-bottom:1px solid var(--line);border-radius:0;position:relative}
.faq-acc .accordion-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);
  transform:scaleY(0);transform-origin:top;transition:transform .24s var(--ease);
}
.faq-acc .accordion-item:has(.accordion-button:not(.collapsed))::before{transform:scaleY(1)}
.faq-acc .accordion-header{margin:0}
.faq-acc .accordion-button{
  width:100%;background:transparent;border:none;box-shadow:none;border-radius:0;
  padding:24px 44px 24px 20px;font-size:1.05rem;font-weight:600;color:var(--ink-2);
  position:relative;text-align:left;line-height:1.6;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--ink-2);background:transparent;box-shadow:none}
.faq-acc .accordion-button::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;font-size:13px;color:var(--tertiary);
  position:absolute;right:16px;top:50%;transform:translateY(-50%) rotate(0deg);
  transition:transform .24s var(--ease);width:auto;height:auto;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(180deg)}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--primary-deep);outline-offset:-2px}
.faq-acc .accordion-body{padding:0 44px 26px 20px;color:var(--muted);font-size:15.5px;line-height:1.85}

/* ---------- CTA band ---------- */
.cta-band{background:var(--ink);padding:64px 0;position:relative;overflow:hidden}
@media (min-width:992px){.cta-band{padding:104px 0}}
.cta-band::before{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:min(760px,90vw);height:min(760px,90vw);border-radius:50%;
  background:radial-gradient(circle,rgba(183,226,46,.16) 0%,rgba(183,226,46,0) 68%);
}
.cta-inner{position:relative;text-align:center;max-width:720px;margin:0 auto}
.cta-inner h2{color:#F4F2EA;font-size:clamp(1.7rem,3.4vw,2.6rem);font-weight:700;line-height:1.2}
.cta-inner p{color:rgba(244,242,234,.72);margin-top:16px;font-size:16px;line-height:1.8}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px}
.btn-xl{padding:18px 44px;font-size:17px}
.btn-ghost.on-dark{border-color:rgba(244,242,234,.5);color:#F4F2EA}
.btn-ghost.on-dark:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink);color:rgba(244,242,234,.76);
  padding:56px 0 calc(40px + env(safe-area-inset-bottom));
}
@media (min-width:768px){.site-footer{padding:72px 0 40px}}
.footer-grid{display:grid;gap:8px;grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.3fr 1fr 1fr 1.4fr;gap:40px}}
.footer-col{border-bottom:1px solid rgba(244,242,234,.14);padding:14px 0}
@media (min-width:768px){.footer-col{border-bottom:none;padding:0}}
.footer-brand{font-size:1.3rem;font-weight:800;color:#F4F2EA;letter-spacing:-.03em}
.footer-col h4{font-size:13px;letter-spacing:.16em;color:rgba(244,242,234,.6);font-weight:600;margin:0;text-transform:uppercase}
.footer-col h4 .toggle{display:none}
.col-body{padding-top:14px}
@media (max-width:767px){
  .footer-col h4{position:relative;cursor:pointer;padding:6px 0;font-size:14px;color:#F4F2EA}
  .footer-col h4 .toggle{display:block;position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:13px;color:rgba(244,242,234,.6);transition:transform .24s var(--ease)}
  .footer-col .col-body{display:none;padding-top:12px}
  .footer-col.open .col-body{display:block}
  .footer-col.open h4 .toggle{transform:translateY(-50%) rotate(180deg)}
}
.footer-note{font-size:14.5px;line-height:1.8;color:rgba(244,242,234,.66)}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(244,242,234,.22);border-radius:14px;color:rgba(244,242,234,.8);
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.footer-social a:hover{background:var(--primary);color:var(--primary-ink);border-color:var(--primary)}
.footer-links{display:grid;gap:12px}
.footer-links a{color:rgba(244,242,234,.78);font-size:14.5px;transition:color .2s var(--ease),padding-left .2s var(--ease)}
.footer-links a:hover{color:var(--primary);padding-left:4px}
.footer-form{display:grid;gap:14px}
.field{display:grid;gap:8px}
.field label{font-size:14px;color:rgba(244,242,234,.6)}
.field input,.field select{
  width:100%;padding:14px 18px;border-radius:var(--radius-field);
  background:rgba(244,242,234,.06);border:1px solid rgba(244,242,234,.2);
  color:#F4F2EA;font-size:15px;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.field input::placeholder{color:rgba(244,242,234,.4)}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(183,226,46,.35);
}
.field select option{color:#16190F}
.footer-form .btn-pill{width:100%}
.form-tip{font-size:13px;color:rgba(244,242,234,.5);line-height:1.7}
.footer-bottom{
  margin-top:36px;padding-top:24px;border-top:1px solid rgba(244,242,234,.14);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(244,242,234,.5);
}

/* motion */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --primary:#B7E22E;
  --primary-dark:#9FC920;
  --accent:#FF6A3D;
  --tertiary:#2E6F63;
  --ink:#0D0F0B;
  --ink-2:#16190F;
  --paper:#F4F2EA;
  --surface:#FFFFFF;
  --surface-2:#EAE7DC;
  --line:#D9D5C7;
  --muted:#6E6E62;
  --radius-card:20px;
  --radius-img:14px;
  --radius-input:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(13,15,11,.04),0 12px 32px -18px rgba(13,15,11,.18);
  --shadow-2:0 2px 4px rgba(13,15,11,.06),0 20px 44px -20px rgba(13,15,11,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
  background:var(--paper);
  padding-bottom:calc(72px + env(safe-area-inset-bottom));
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;line-height:1.2;color:var(--ink-2)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{list-style:none;margin:0;padding:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:28px;padding-right:28px}
@media (min-width:1400px){.container{max-width:1280px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(244,242,234,.9);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease),background .24s var(--ease);
}
.site-header.scrolled{background:rgba(244,242,234,.97);box-shadow:0 14px 34px -26px rgba(13,15,11,.6)}
.header-inner{display:flex;align-items:center;gap:26px;height:var(--nav-h)}
.brand{font-size:22px;font-weight:800;letter-spacing:-.03em;color:var(--ink-2);white-space:nowrap}
.brand::after{content:"";display:inline-block;width:8px;height:8px;border-radius:2px;background:var(--primary);margin-left:9px;vertical-align:middle}
.desk-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--muted);padding:8px 0;letter-spacing:.01em}
.nav-link::after{content:"";position:absolute;left:0;bottom:2px;height:2px;width:0;background:var(--primary);transition:width .24s var(--ease)}
.nav-link:hover{color:var(--ink-2)}
.nav-link.active{color:var(--ink-2);font-weight:600}
.nav-link.active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--surface);
  color:var(--ink-2);display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{border-color:var(--ink-2);transform:translateY(-2px)}
.btn-pill{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  padding:14px 28px;border-radius:var(--radius-pill);border:1px solid transparent;
  background:var(--primary);color:var(--ink-2);font-size:15px;font-weight:600;font-family:inherit;
  cursor:pointer;transition:background .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-pill:hover{background:var(--primary-dark);transform:translateY(-2px);border-color:var(--ink-2);color:var(--ink-2)}
.btn-pill:active{transform:translateY(0)}
.btn-pill i{transition:transform .22s var(--ease)}
.btn-pill:hover i{transform:translateX(4px)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-pill);border:1px solid var(--ink-2);
  background:transparent;color:var(--ink-2);font-size:15px;font-weight:600;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.btn-ghost:hover{background:var(--ink-2);color:var(--paper);transform:translateY(-2px)}
.header-cta{padding:12px 24px;font-size:14px}
.burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:var(--surface);
  cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.burger span{display:block;width:18px;height:2px;background:var(--ink-2);border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 抽屉 */
.drawer{
  position:fixed;left:0;right:0;top:var(--nav-h);z-index:1029;
  background:var(--surface);border-bottom:1px solid var(--line);
  transform:translateY(-14px);opacity:0;pointer-events:none;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
  max-height:calc(100vh - var(--nav-h));overflow-y:auto;
}
.drawer.open{transform:none;opacity:1;pointer-events:auto}
.drawer-inner{padding:22px 28px 30px}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:20px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 4px;border-bottom:1px solid var(--line);font-size:16px;font-weight:500;color:var(--ink-2);min-height:44px;
}
.drawer-nav a.active{color:var(--tertiary);font-weight:600}
.drawer-nav a i{font-size:12px;color:var(--muted)}
.drawer-cta{width:100%}
.drawer-meta{margin-top:22px;font-size:13px;color:var(--muted);line-height:1.9}
.drawer-mask{
  position:fixed;inset:var(--nav-h) 0 0 0;background:rgba(13,15,11,.5);z-index:1028;
  opacity:0;pointer-events:none;transition:opacity .24s var(--ease);
}
.drawer-mask.open{opacity:1;pointer-events:auto}

/* ============ 页面头部 ============ */
.page-hero{position:relative;overflow:hidden;background:var(--surface-2);border-bottom:1px solid var(--line);padding:70px 0 62px}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;opacity:.16;
}
.page-hero .container{position:relative;z-index:1}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;letter-spacing:.06em;color:var(--muted);margin-bottom:22px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--ink-2);text-decoration:underline;text-underline-offset:4px}
.crumbs .sep{opacity:.55}
.crumbs .current{color:var(--ink-2)}
.page-hero h1{font-size:clamp(2rem,4.2vw,3rem);font-weight:800;line-height:1.08;letter-spacing:-.03em;margin-bottom:20px;max-width:20ch}
.page-hero .lede{max-width:62ch;font-size:17px;color:var(--muted)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag-pill{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:var(--surface);font-size:13px;letter-spacing:.06em;color:var(--muted);
}
.tag-pill i{font-size:11px;color:var(--tertiary)}

/* ============ 通用板块 ============ */
main{display:block}
.section{padding:96px 0}
.section-alt{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:44px;max-width:62ch}
.eyebrow{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.18em;color:var(--tertiary);margin-bottom:16px}
.section-head h2{font-size:clamp(1.7rem,3.2vw,2.4rem);font-weight:700;letter-spacing:-.02em;line-height:1.18;margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16px;margin:0}

/* ============ 左栏长列表 ============ */
.path-list{border-top:1px solid var(--line);margin-bottom:8px}
.path-item{display:flex;gap:26px;padding:30px 0;border-bottom:1px solid var(--line);transition:padding-left .24s var(--ease)}
.path-item:hover{padding-left:8px}
.path-num{
  font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:.02em;
  min-width:62px;line-height:1.3;color:var(--tertiary);
}
@supports ((-webkit-text-stroke:1px #000)){
  .path-num{color:transparent;-webkit-text-stroke:1.2px var(--tertiary)}
}
.path-body h3{font-size:1.2rem;font-weight:600;margin-bottom:10px;letter-spacing:0}
.path-body p{font-size:15.5px;color:var(--muted);margin-bottom:14px}
.tag{display:inline-block;font-size:12px;letter-spacing:.08em;padding:4px 13px;border:1px solid var(--line);border-radius:var(--radius-pill);color:var(--muted);background:var(--surface)}

/* ============ 右栏侧栏 ============ */
.side-wrap{display:flex;flex-direction:column;gap:24px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);
}
.side-card.plain{box-shadow:none}
.side-figure{margin:0;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:var(--surface)}
.side-figure img{border-radius:0;aspect-ratio:16/9;object-fit:cover;width:100%}
.side-figure figcaption{padding:12px 18px;font-size:13px;color:var(--muted);background:var(--surface)}
.side-card h3{font-size:1.05rem;font-weight:600;margin-bottom:16px}
.point-list li{position:relative;padding-left:20px;margin-bottom:14px;font-size:15px;line-height:1.75}
.point-list li:last-child{margin-bottom:0}
.point-list li::before{content:"";position:absolute;left:0;top:12px;width:9px;height:2px;background:var(--accent)}
.side-form .field{margin-bottom:14px}
.side-form label{display:block;font-size:13px;letter-spacing:.05em;color:var(--muted);margin-bottom:7px}
.side-form input,.side-form select{
  width:100%;padding:13px 16px;border:1px solid var(--line);border-radius:var(--radius-input);
  background:var(--surface);font-size:15px;font-family:inherit;color:var(--ink-2);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.side-form input:focus,.side-form select:focus{outline:none;border-color:var(--primary-dark);box-shadow:0 0 0 3px rgba(183,226,46,.38)}
.side-form .btn-pill{width:100%;margin-top:6px}
.form-tip{font-size:12.5px;color:var(--muted);margin:12px 0 0;line-height:1.7}

/* ============ 数据条 ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
}
.stat-cell{padding:34px 26px;border-right:1px solid var(--line)}
.stat-cell:last-child{border-right:0}
.stat-cell .num{font-size:clamp(1.8rem,3vw,2.5rem);font-weight:800;letter-spacing:-.03em;font-variant-numeric:tabular-nums;line-height:1.1}
.stat-cell .num em{font-style:normal;font-size:1rem;font-weight:600;color:var(--muted);margin-left:5px;letter-spacing:0}
.stat-cell .label{font-size:13px;letter-spacing:.08em;color:var(--muted);margin-top:8px}

/* ============ 检查清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 44px}
.check-item{display:flex;gap:14px;align-items:flex-start;padding:19px 0;border-bottom:1px dashed var(--line);font-size:15.5px}
.check-item i{color:var(--tertiary);font-size:15px;margin-top:7px;flex:none}

/* ============ FAQ ============ */
.faq-acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);border-radius:0}
.faq-acc .accordion-item:first-of-type{border-top:1px solid var(--line)}
.faq-acc .accordion-header{margin:0}
.faq-acc .accordion-button{
  position:relative;background:transparent;border:0;border-radius:0;box-shadow:none;
  padding:24px 52px 24px 22px;font-size:1.05rem;font-weight:600;color:var(--ink-2);
  font-family:inherit;letter-spacing:0;line-height:1.5;
}
.faq-acc .accordion-button::before{
  content:"";position:absolute;left:0;top:50%;width:3px;height:58%;background:var(--primary);
  transform:translateY(-50%) scaleY(0);transform-origin:center;transition:transform .24s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed){background:transparent;color:var(--ink-2);box-shadow:none}
.faq-acc .accordion-button:not(.collapsed)::before{transform:translateY(-50%) scaleY(1)}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-acc .accordion-button::after{
  width:16px;height:16px;background-size:16px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%2316190F' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 6l5 5 5-5'/%3E%3C/svg%3E");
  transition:transform .24s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.faq-acc .accordion-body{padding:0 52px 26px 22px;font-size:15.5px;color:var(--muted);line-height:1.85}

/* ============ CTA 带 ============ */
.cta-band{position:relative;overflow:hidden;background:var(--ink);color:var(--paper);padding:104px 0;text-align:center}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 50% -10%,rgba(183,226,46,.22),transparent 62%);
}
.cta-band .container{position:relative;z-index:1}
.cta-band h2{color:#FFFFFF;font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:800;letter-spacing:-.03em;margin-bottom:16px}
.cta-band p{color:#B9B8AB;max-width:52ch;margin:0 auto 34px;font-size:16px}
.btn-xl{padding:19px 44px;font-size:17px}
.cta-sub{display:block;margin-top:20px;font-size:13.5px;color:#8A8A7E;letter-spacing:.05em}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#CFCEC2;padding:76px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.5fr;gap:44px}
.footer-brand{font-size:22px;font-weight:800;letter-spacing:-.03em;color:#FFFFFF;margin-bottom:14px}
.footer-note{font-size:14px;color:#9C9C90;line-height:1.85}
.footer-col h4{font-size:13px;font-weight:600;letter-spacing:.14em;color:#9C9C90;margin-bottom:16px}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:14px;color:#CFCEC2}
.footer-links a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
.footer-social{display:flex;gap:12px;margin-top:20px}
.footer-social a{
  width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;color:#CFCEC2;
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.footer-social a:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.footer-form .field{margin-bottom:14px}
.footer-form label{display:block;font-size:13px;color:#9C9C90;margin-bottom:7px;letter-spacing:.05em}
.footer-form input,.footer-form select{
  width:100%;padding:14px 18px;border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-input);
  background:rgba(255,255,255,.05);color:#F4F2EA;font-size:14.5px;font-family:inherit;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.footer-form input::placeholder{color:#7E7E73}
.footer-form input:focus,.footer-form select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(183,226,46,.28)}
.footer-form select option{color:var(--ink-2)}
.footer-form .btn-pill{width:100%;margin-top:4px}
.footer-form .form-tip{font-size:12.5px;color:#8A8A7E;margin-top:12px;line-height:1.7}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:24px 0 34px;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  font-size:13px;color:#8A8A7E;letter-spacing:.03em;
}

/* ============ 移动底部 Tab ============ */
.mobile-tabs{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  display:grid;grid-template-columns:repeat(5,1fr);
  background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  min-height:60px;font-size:11px;letter-spacing:.04em;color:var(--muted);padding:8px 2px;
}
.tab-item i{font-size:17px;line-height:1}
.tab-item.active{color:var(--ink-2);font-weight:600}
.tab-item.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;border-radius:2px;background:var(--primary);
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (min-width:992px){
  body{padding-bottom:0}
  .mobile-tabs{display:none}
}
@media (min-width:1200px){
  .side-sticky{position:sticky;top:calc(var(--nav-h) + 26px)}
}
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:32px}
}
@media (max-width:991px){
  .desk-nav{display:none}
  .burger{display:flex}
  .header-cta{display:none}
  .header-inner{gap:16px}
  .section{padding:72px 0}
  .page-hero{padding:52px 0 48px}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-cell:nth-child(2){border-right:0}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid var(--line)}
  .check-grid{grid-template-columns:1fr;gap:0}
  .cta-band{padding:78px 0}
  .site-footer{padding-top:56px}
  .footer-grid{grid-template-columns:1fr;gap:0}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.12);padding:18px 0}
  .footer-col h4{margin:0;display:flex;align-items:center;justify-content:space-between;cursor:pointer;min-height:32px}
  .footer-col h4::after{
    content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:#8A8A7E;
    transition:transform .24s var(--ease);
  }
  .footer-col.open h4::after{transform:rotate(180deg)}
  .footer-col .col-body{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
  .footer-col.open .col-body{max-height:900px;padding-top:16px}
  .footer-col.no-collapse .col-body{max-height:none;padding-top:14px}
  .footer-col.no-collapse h4{display:none}
  .footer-bottom{margin-top:34px;flex-direction:column;gap:8px}
}
@media (max-width:767px){
  .container{padding-left:20px;padding-right:20px}
  .path-item{gap:16px;padding:24px 0}
  .path-num{font-size:22px;min-width:46px}
  .page-hero .lede{font-size:16px}
  .side-card{padding:22px}
  .section{padding:60px 0}
  .section-head{margin-bottom:32px}
  .cta-band{padding:66px 0}
  .btn-xl{padding:17px 32px;font-size:16px;width:100%}
}
@media (max-width:519px){
  .stat-cell{padding:26px 18px}
  .faq-acc .accordion-button{padding:20px 44px 20px 18px;font-size:1rem}
  .faq-acc .accordion-body{padding:0 44px 22px 18px}
  .hero-tags{gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.001ms !important;animation-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category4 */
:root{
  --primary:#B7E22E;
  --primary-dark:#A3CB23;
  --primary-soft:rgba(183,226,46,.16);
  --accent:#FF6A3D;
  --tertiary:#2E6F63;
  --ink:#0D0F0B;
  --ink-2:#16190F;
  --paper:#F4F2EA;
  --surface:#FFFFFF;
  --surface-2:#EAE7DC;
  --line:#D9D5C7;
  --muted:#6E6E62;
  --radius-card:20px;
  --radius-img:14px;
  --radius-input:12px;
  --shadow-1:0 1px 2px rgba(13,15,11,.04),0 12px 32px -18px rgba(13,15,11,.18);
  --shadow-2:0 2px 4px rgba(13,15,11,.06),0 20px 44px -20px rgba(13,15,11,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
  background:var(--paper);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:var(--ink-2);text-decoration:none;text-underline-offset:4px;transition:color .22s var(--ease),opacity .22s var(--ease)}
a:hover{color:var(--tertiary)}
h1,h2,h3,h4{margin:0;color:var(--ink-2);letter-spacing:-.02em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 28px}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:767px){.container{padding:0 20px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(244,242,234,.9);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease),background .24s var(--ease);
}
.site-header.scrolled{background:rgba(244,242,234,.97);box-shadow:0 10px 30px -22px rgba(13,15,11,.5)}
.header-inner{height:var(--nav-h);display:flex;align-items:center;gap:28px}
.brand{
  font-size:1.35rem;font-weight:800;letter-spacing:-.03em;color:var(--ink-2);
  display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;
}
.brand::before{content:"";width:10px;height:22px;border-radius:3px;background:var(--primary);display:inline-block}
.brand:hover{color:var(--ink-2)}
.desk-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--muted);
  padding:6px 0;line-height:1.4;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--ink-2)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink-2);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.header-tools{display:flex;align-items:center;gap:14px;margin-left:6px}
.icon-btn{
  width:42px;height:42px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink-2);
  background:var(--surface);transition:border-color .22s var(--ease),transform .22s var(--ease),color .22s var(--ease);
}
.icon-btn:hover{border-color:var(--primary);color:var(--tertiary);transform:translateY(-2px)}
.hamburger{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  display:none;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink-2);border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease)}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer{
  position:fixed;left:0;right:0;top:var(--nav-h);background:var(--paper);
  border-bottom:1px solid var(--line);box-shadow:var(--shadow-1);
  padding:18px 0 26px;transform:translateY(-14px);opacity:0;visibility:hidden;
  transition:transform .24s var(--ease),opacity .24s var(--ease),visibility .24s;
  max-height:calc(100vh - var(--nav-h));overflow-y:auto;
}
.drawer.open{transform:translateY(0);opacity:1;visibility:visible}
.drawer-list{display:flex;flex-direction:column}
.drawer-list a{
  padding:15px 4px;border-bottom:1px solid var(--line);font-size:1rem;font-weight:500;
  display:flex;align-items:center;justify-content:space-between;min-height:44px;
}
.drawer-list a.active{color:var(--tertiary);font-weight:600}
.drawer-list a i{color:var(--muted);font-size:.8rem}
.drawer-cta{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.drawer-note{font-size:.83rem;color:var(--muted);letter-spacing:.04em}

/* ---------- buttons ---------- */
.btn-pill{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 30px;border-radius:999px;background:var(--primary);color:var(--ink);
  font-weight:600;font-size:.95rem;border:1px solid transparent;letter-spacing:.01em;
  transition:transform .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-pill:hover{background:var(--primary-dark);color:var(--ink);transform:translateY(-2px);border-color:var(--ink);box-shadow:var(--shadow-1)}
.btn-pill:active{transform:translateY(0)}
.btn-pill i{transition:transform .22s var(--ease)}
.btn-pill:hover i{transform:translateX(4px)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;padding:13px 28px;border-radius:999px;
  border:1px solid var(--ink-2);background:transparent;color:var(--ink-2);font-weight:600;font-size:.95rem;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.btn-ghost:hover{background:var(--ink-2);color:var(--paper);transform:translateY(-2px)}
.btn-xl{padding:20px 46px;font-size:1.05rem;font-weight:700}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:.92rem;color:var(--tertiary);
  border-bottom:1px solid var(--line);padding-bottom:4px;
}
.link-arrow i{transition:transform .22s var(--ease)}
.link-arrow:hover{border-color:var(--primary);color:var(--ink-2)}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:76px 0 68px;
  background:linear-gradient(180deg,rgba(244,242,234,.94) 0%,rgba(244,242,234,.86) 55%,var(--paper) 100%),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(183,226,46,.28),rgba(183,226,46,0) 68%);pointer-events:none;
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.35fr .65fr;gap:48px;align-items:end}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:.83rem;color:var(--muted);letter-spacing:.06em;margin-bottom:22px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--tertiary)}
.crumb li+li::before{content:"/";margin-right:10px;color:var(--line)}
.crumb li{display:inline-flex;align-items:center}
.crumb .current{color:var(--ink-2);font-weight:600}
.hero-kicker{
  display:inline-block;font-size:.78rem;letter-spacing:.18em;color:var(--tertiary);
  border:1px solid var(--line);border-radius:999px;padding:5px 14px;background:var(--surface);margin-bottom:18px;
}
.page-hero h1{font-size:clamp(2.4rem,5.4vw,4.2rem);font-weight:800;line-height:1.04;letter-spacing:-.03em}
.hero-lead{margin-top:20px;font-size:1.06rem;color:var(--muted);max-width:620px}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px}
.hero-side{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);
}
.hero-side h2{font-size:.8rem;letter-spacing:.16em;color:var(--muted);font-weight:600;margin-bottom:18px}
.hero-side li{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid var(--line)}
.hero-side li:last-child{border-bottom:0}
.hero-side .num{font-size:1.5rem;font-weight:800;color:var(--ink-2)}
.hero-side .lbl{font-size:.86rem;color:var(--muted);text-align:right}

/* ---------- sections ---------- */
section{position:relative}
.band{padding:96px 0}
.band-sm{padding:64px 0}
.band-alt{background:var(--surface-2)}
.band-dark{background:var(--ink);color:var(--paper)}
.band-dark h2,.band-dark h3{color:#fff}
.sec-head{max-width:760px;margin-bottom:46px}
.sec-kicker{font-size:.78rem;letter-spacing:.2em;color:var(--tertiary);font-weight:600;margin-bottom:14px}
.sec-head h2{font-size:clamp(1.7rem,3.2vw,2.5rem);font-weight:700;line-height:1.16}
.sec-head p{margin-top:16px;color:var(--muted)}
.tight{margin-bottom:0}

/* ---------- accordion rules ---------- */
.rule-acc .accordion-item{background:transparent;border:0;border-top:1px solid var(--line);border-radius:0}
.rule-acc .accordion-item:last-child{border-bottom:1px solid var(--line)}
.rule-acc .accordion-header{margin:0}
.rule-acc .accordion-button{
  background:transparent;box-shadow:none;border-radius:0;color:var(--ink-2);
  font-weight:600;font-size:1.05rem;padding:24px 44px 24px 22px;position:relative;
  transition:color .22s var(--ease);
}
.rule-acc .accordion-button:hover{color:var(--tertiary)}
.rule-acc .accordion-button::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;background:var(--primary);
  transform:scaleY(0);transform-origin:top;transition:transform .24s var(--ease);
}
.rule-acc .accordion-button:not(.collapsed)::before{transform:scaleY(1)}
.rule-acc .accordion-button::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:.8rem;
  background-image:none;width:auto;height:auto;color:var(--muted);
  transform:rotate(0deg);transition:transform .24s var(--ease),color .22s var(--ease);
}
.rule-acc .accordion-button:not(.collapsed){color:var(--ink-2);background:var(--primary-soft)}
.rule-acc .accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--tertiary)}
.rule-acc .accordion-button:focus{box-shadow:none;border-color:transparent}
.rule-acc .accordion-body{
  padding:6px 44px 30px 22px;color:var(--muted);line-height:1.85;font-size:.97rem;background:var(--primary-soft);
}
.rule-acc .accordion-body strong{color:var(--ink-2)}
.rule-acc .acc-index{
  display:inline-block;min-width:34px;font-size:.8rem;letter-spacing:.12em;color:var(--tertiary);
  font-weight:700;margin-right:10px;
}

/* ---------- compare ---------- */
.compare-wrap{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.compare-col{padding:40px 38px 36px;position:relative}
.compare-col+.compare-col{border-left:1px solid var(--line)}
.compare-col .tag-row{margin-bottom:18px;display:flex;flex-wrap:wrap;gap:10px}
.compare-col h3{font-size:1.35rem;font-weight:700;margin-bottom:14px}
.compare-col>p{color:var(--muted);font-size:.97rem}
.compare-list{margin-top:24px;border-top:1px solid var(--line);padding-top:8px}
.compare-list li{position:relative;padding:11px 0 11px 22px;font-size:.94rem;color:var(--ink-2);border-bottom:1px dashed var(--line)}
.compare-list li:last-child{border-bottom:0}
.compare-list li::before{content:"";position:absolute;left:0;top:20px;width:8px;height:2px;background:var(--primary);border-radius:2px}
.compare-col.accent-col .compare-list li::before{background:var(--accent)}
.compare-note{
  margin-top:22px;font-size:.85rem;color:var(--muted);background:var(--surface-2);
  border-radius:12px;padding:13px 16px;
}
.compare-photo{margin-bottom:26px;border-radius:var(--radius-img);overflow:hidden}
.compare-photo img{width:100%;height:190px;object-fit:cover;border-radius:var(--radius-img)}

/* ---------- badges ---------- */
.badge-pill{
  display:inline-flex;align-items:center;gap:7px;
  font-size:.76rem;letter-spacing:.1em;font-weight:600;
  padding:5px 13px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface);color:var(--muted);
}
.badge-pill.solid{background:var(--primary);color:var(--ink);border-color:var(--primary)}
.badge-pill.accent{background:transparent;color:var(--accent);border-color:var(--accent)}
.badge-pill.deep{background:transparent;color:var(--tertiary);border-color:var(--tertiary)}

/* ---------- tier cards ---------- */
.tier-grid{display:grid;grid-template-columns:1.12fr 1fr 1fr;gap:26px;align-items:start}
.tier-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.tier-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--primary)}
.tier-card.featured{border-color:var(--primary);padding:40px 36px}
.tier-card h3{font-size:1.3rem;font-weight:700;margin:16px 0 8px}
.tier-card.featured h3{font-size:1.5rem}
.tier-card .tier-desc{color:var(--muted);font-size:.94rem}
.tier-list{margin-top:22px;border-top:1px solid var(--line);padding-top:14px}
.tier-list li{position:relative;padding:9px 0 9px 20px;font-size:.92rem}
.tier-list li::before{content:"";position:absolute;left:0;top:18px;width:7px;height:7px;border-radius:2px;background:var(--primary)}
.tier-card.accent-card .tier-list li::before{background:var(--accent)}
.tier-cond{margin-top:20px;font-size:.82rem;color:var(--muted);letter-spacing:.02em}
.tier-foot{margin-top:22px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.step{padding:0 26px;position:relative}
.step+.step{border-left:1px solid var(--line)}
.step .idx{
  font-size:2.4rem;font-weight:800;line-height:1;color:transparent;
  -webkit-text-stroke:1.2px var(--tertiary);letter-spacing:-.03em;
}
.step h3{font-size:1.1rem;font-weight:600;margin:16px 0 10px}
.step p{font-size:.92rem;color:var(--muted)}
.step .dot{width:10px;height:10px;border-radius:50%;background:var(--primary);margin-top:20px}

/* ---------- metrics ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.metric{padding:34px 26px;border-left:1px solid var(--line)}
.metric:first-child{border-left:0}
.metric .val{font-size:clamp(2rem,4vw,3rem);font-weight:800;line-height:1;letter-spacing:-.03em}
.metric .cap{margin-top:12px;font-size:.85rem;color:var(--muted);letter-spacing:.06em}
.metric .val span{font-size:1rem;font-weight:600;color:var(--muted);margin-left:4px}

/* ---------- faq grid ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.faq-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px 30px 26px;transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.faq-card h3{font-size:1.03rem;font-weight:600;margin-bottom:12px;display:flex;gap:11px;align-items:flex-start}
.faq-card h3 i{color:var(--primary);font-size:.9rem;margin-top:7px}
.faq-card p{color:var(--muted);font-size:.94rem}

/* ---------- cta band ---------- */
.cta-band{
  padding:104px 0;background:var(--ink);color:var(--paper);text-align:center;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;left:50%;top:-220px;transform:translateX(-50%);
  width:760px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(183,226,46,.2),rgba(183,226,46,0) 70%);
}
.cta-band .inner{position:relative;z-index:2;max-width:760px;margin:0 auto}
.cta-band h2{font-size:clamp(1.8rem,3.6vw,2.7rem);font-weight:700;color:#fff;line-height:1.15}
.cta-band p{margin-top:18px;color:rgba(244,242,234,.72);font-size:1rem}
.cta-band .actions{margin-top:40px;display:flex;justify-content:center;flex-wrap:wrap;gap:16px}
.cta-band .btn-ghost{border-color:rgba(244,242,234,.5);color:var(--paper)}
.cta-band .btn-ghost:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(244,242,234,.78);padding:78px 0 40px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px}
.footer-brand{font-size:1.3rem;font-weight:800;color:#fff;letter-spacing:-.03em;display:inline-flex;align-items:center;gap:8px}
.footer-brand::before{content:"";width:9px;height:20px;border-radius:3px;background:var(--primary)}
.footer-note{margin-top:16px;font-size:.9rem;color:rgba(244,242,234,.62);max-width:300px}
.footer-social{display:flex;gap:12px;margin-top:22px}
.footer-social a{
  width:40px;height:40px;border-radius:999px;border:1px solid rgba(244,242,234,.24);
  display:inline-flex;align-items:center;justify-content:center;color:rgba(244,242,234,.82);
  transition:border-color .22s var(--ease),transform .22s var(--ease),color .22s var(--ease);
}
.footer-social a:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.footer-col h4{font-size:.8rem;letter-spacing:.16em;color:rgba(244,242,234,.55);font-weight:600;margin-bottom:20px}
.footer-links li{margin-bottom:12px}
.footer-links a{color:rgba(244,242,234,.82);font-size:.93rem}
.footer-links a:hover{color:var(--primary)}
.footer-form .field{margin-bottom:14px}
.footer-form label{display:block;font-size:.82rem;color:rgba(244,242,234,.6);margin-bottom:7px}
.footer-form input,.footer-form select{
  width:100%;padding:13px 16px;border-radius:var(--radius-input);
  border:1px solid rgba(244,242,234,.24);background:rgba(244,242,234,.06);color:#fff;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.footer-form input::placeholder{color:rgba(244,242,234,.4)}
.footer-form select option{color:#16190F}
.footer-form input:focus,.footer-form select:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(183,226,46,.35);
}
.footer-form .btn-pill{width:100%;margin-top:6px}
.form-tip{margin-top:12px;font-size:.78rem;color:rgba(244,242,234,.5)}
.footer-bottom{
  margin-top:56px;padding-top:26px;border-top:1px solid rgba(244,242,234,.16);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:.82rem;color:rgba(244,242,234,.5);
}

/* ---------- mobile tab ---------- */
.mobile-tab{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.96);backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tab .tab-inner{display:grid;grid-template-columns:repeat(5,1fr)}
.mobile-tab a{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:4px;padding:10px 2px 9px;font-size:.68rem;color:var(--muted);min-height:56px;
}
.mobile-tab a i{font-size:1.05rem}
.mobile-tab a::before{
  content:"";position:absolute;top:0;left:22%;right:22%;height:2px;background:var(--primary);
  transform:scaleX(0);transition:transform .24s var(--ease);
}
.mobile-tab a.active{color:var(--tertiary);font-weight:600}
.mobile-tab a.active::before{transform:scaleX(1)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .hero-grid{grid-template-columns:1.2fr .8fr;gap:36px}
  .tier-grid{grid-template-columns:1fr 1fr;gap:22px}
  .tier-card.featured{grid-column:1 / -1;padding:34px}
}
@media (max-width:991px){
  .desk-nav,.header-cta{display:none}
  .hamburger{display:flex}
  .header-tools{margin-left:auto}
  body{padding-bottom:calc(72px + env(safe-area-inset-bottom))}
  .mobile-tab{display:block}
  .site-footer{padding-bottom:56px}
  .band{padding:72px 0}
  .cta-band{padding:80px 0}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .page-hero{padding:56px 0 52px}
  .compare-wrap{grid-template-columns:1fr}
  .compare-col+.compare-col{border-left:0;border-top:1px solid var(--line)}
  .steps{grid-template-columns:1fr 1fr;gap:32px 0}
  .step:nth-child(3){border-left:0}
  .step:nth-child(3),.step:nth-child(4){padding-top:0}
  .metrics{grid-template-columns:1fr 1fr}
  .metric:nth-child(3){border-left:0}
  .metric:nth-child(n+3){border-top:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .faq-grid{grid-template-columns:1fr}
  .tier-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:0}
  .footer-col{border-bottom:1px solid rgba(244,242,234,.14);padding:0}
  .footer-col h4{margin:0;padding:18px 0;display:flex;align-items:center;justify-content:space-between;cursor:pointer}
  .footer-col h4::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:.72rem;transition:transform .24s var(--ease)}
  .footer-col.open h4::after{transform:rotate(180deg)}
  .footer-col .col-body{display:none;padding-bottom:22px}
  .footer-col.open .col-body{display:block}
  .footer-brand{margin-top:22px}
  .footer-col:first-child .col-body{display:block}
  .footer-col:first-child h4{display:none}
  .compare-col{padding:30px 22px}
  .rule-acc .accordion-button{padding:20px 40px 20px 18px;font-size:1rem}
  .rule-acc .accordion-body{padding:4px 30px 24px 18px}
  .tier-card,.faq-card{padding:26px 22px}
}
@media (max-width:575px){
  .steps{grid-template-columns:1fr;gap:0}
  .step{padding:24px 0}
  .step+.step{border-left:0;border-top:1px solid var(--line)}
  .metrics{grid-template-columns:1fr}
  .metric{border-left:0}
  .metric+.metric{border-top:1px solid var(--line)}
  .hero-actions .btn-pill,.hero-actions .btn-ghost{width:100%}
  .cta-band .btn-xl{width:100%;padding:18px 28px}
  .cta-band .actions .btn-ghost{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}