/* roulang page: index */
:root{
  --ink:#0E1013;
  --ink-2:#1C2026;
  --paper:#F6F6F2;
  --surface:#EFEFE8;
  --line:#E3E3DC;
  --text:#15181C;
  --muted:#6C727B;
  --lime:#C9F24D;
  --orange:#FF6B3D;
  --white:#ffffff;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(14,16,19,.06);
  --shadow-2:0 14px 34px -14px rgba(14,16,19,.22);
  --ease:cubic-bezier(.22,.7,.28,1);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;border:none;background:none;cursor:pointer;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px;}
.container-xl{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* ---------- 通用按钮 ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-x:active{transform:translateY(1px);}
.btn-x .arw{transition:transform .22s var(--ease);}
.btn-x:hover .arw{transform:translateX(4px);}
.btn-lime{background:var(--lime);color:var(--ink);}
.btn-lime:hover{background:var(--ink);color:var(--lime);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff;}
.btn-dark{background:var(--ink);color:#fff;}
.btn-dark:hover{background:var(--lime);color:var(--ink);}
.btn-line{background:transparent;color:var(--text);border-color:var(--line);}
.btn-line:hover{background:var(--ink);color:#fff;border-color:var(--ink);}
.btn-sm-x{height:40px;padding:0 16px;font-size:14px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  height:76px;
  background:rgba(255,255,255,.08);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.16);
  box-shadow:0 8px 24px -14px rgba(0,0,0,.4);
  transition:height .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  height:62px;
  background:rgba(246,246,242,.94);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom-color:var(--line);
  box-shadow:0 1px 0 rgba(14,16,19,.05);
}
.nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.brand{display:flex;align-items:center;gap:12px;color:#fff;flex:none;}
.site-header.is-scrolled .brand{color:var(--text);}
.brand-mark{
  width:38px;height:38px;border-radius:var(--radius-sm);
  background:var(--lime);color:var(--ink);
  display:grid;place-items:center;font-weight:900;font-size:18px;letter-spacing:-.02em;flex:none;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;font-weight:800;font-size:19px;letter-spacing:-.01em;}
.brand-text small{font-weight:500;font-size:11px;letter-spacing:.2em;color:rgba(255,255,255,.62);margin-top:5px;}
.site-header.is-scrolled .brand-text small{color:var(--muted);}
.nav-links{display:flex;align-items:center;gap:34px;}
.nav-link{position:relative;font-size:15px;font-weight:500;color:rgba(255,255,255,.82);padding:6px 0;transition:color .22s var(--ease),opacity .22s var(--ease);}
.nav-link:hover{color:#fff;}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-4px;width:18px;height:2px;border-radius:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.site-header.is-scrolled .nav-link{color:var(--muted);}
.site-header.is-scrolled .nav-link:hover,.site-header.is-scrolled .nav-link.active{color:var(--text);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none;}
.icon-btn{
  width:44px;height:44px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.22);color:#fff;
  display:grid;place-items:center;font-size:17px;
  transition:background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.14);}
.site-header.is-scrolled .icon-btn{border-color:var(--line);color:var(--text);background:#fff;}
.site-header.is-scrolled .icon-btn:hover{background:var(--surface);}
.nav-search{
  width:0;opacity:0;overflow:hidden;
  transition:width .26s var(--ease),opacity .26s var(--ease);
}
.nav-search.open{width:216px;opacity:1;}
.nav-search input{
  width:100%;height:44px;padding:0 14px;
  border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.1);
  color:#fff;font-size:14px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.nav-search input::placeholder{color:rgba(255,255,255,.6);}
.nav-search input:focus{
  outline:none;border-color:var(--lime);
  box-shadow:0 0 0 3px rgba(201,242,77,.28);
  background:rgba(255,255,255,.16);
}
.site-header.is-scrolled .nav-search input{background:#fff;border-color:var(--line);color:var(--text);}
.site-header.is-scrolled .nav-search input::placeholder{color:var(--muted);}
.nav-burger{display:none;width:44px;height:44px;border-radius:var(--radius-sm);border:1px solid rgba(255,255,255,.22);color:#fff;font-size:20px;place-items:center;}
.site-header.is-scrolled .nav-burger{border-color:var(--line);color:var(--text);}

/* 移动端抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:1080;
  background:var(--ink);color:#fff;
  padding:24px;
  display:flex;flex-direction:column;
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform .32s var(--ease),opacity .32s var(--ease);
}
.nav-drawer.open{transform:translateY(0);opacity:1;pointer-events:auto;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:40px;}
.drawer-close{
  width:44px;height:44px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.22);color:#fff;
  display:grid;place-items:center;font-size:22px;line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:6px;flex:1;}
.drawer-nav a{
  font-size:24px;font-weight:700;padding:16px 0;
  border-bottom:1px solid rgba(255,255,255,.1);
  transition:color .22s var(--ease),padding-left .22s var(--ease);
}
.drawer-nav a:hover{color:var(--lime);padding-left:8px;}
.drawer-cta{width:100%;height:52px;font-size:16px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:88vh;
  display:flex;align-items:center;
  padding:150px 0 84px;
  background:var(--ink);color:#F2F2EE;overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  transform:scale(1.05);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,12,15,.74) 0%,rgba(10,12,15,.6) 45%,rgba(10,12,15,.9) 100%);
}
.hero-inner{position:relative;z-index:2;width:100%;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:600;letter-spacing:.18em;
  color:var(--lime);margin-bottom:22px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);border-radius:2px;}
.hero h1{
  font-size:clamp(36px,5vw,62px);
  font-weight:900;line-height:1.08;letter-spacing:-.02em;
  color:#fff;margin-bottom:24px;max-width:640px;
}
.hero-sub{
  font-size:18px;line-height:1.8;color:rgba(242,242,238,.78);
  max-width:520px;margin-bottom:34px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:52px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  padding-top:26px;border-top:1px solid rgba(255,255,255,.16);max-width:640px;
}
.stat-num{font-size:26px;font-weight:800;line-height:1.15;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.stat-label{font-size:13px;color:rgba(242,242,238,.6);margin-top:4px;}
.hero-visual{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 50px 90px -46px rgba(0,0,0,.9);
  animation:heroFloat 7s ease-in-out infinite;
}
.hero-visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.hero-visual .visual-tag{
  position:absolute;left:18px;bottom:18px;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;
  background:rgba(14,16,19,.72);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.18);
  font-size:12px;letter-spacing:.04em;color:#fff;
}
.hero-visual .visual-tag i{color:var(--lime);}
@keyframes heroFloat{
  0%,100%{transform:translateY(0);}
  50%{transform:translateY(-12px);}
}

/* ---------- 区块通用 ---------- */
.section{padding:96px 0;}
.section-tint{background:var(--surface);}
.section-dark{background:var(--ink);color:#F2F2EE;}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:600;letter-spacing:.18em;
  color:var(--muted);margin-bottom:18px;
}
.sec-eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);border-radius:2px;}
.section-dark .sec-eyebrow{color:rgba(242,242,238,.62);}
.section-head{margin-bottom:56px;max-width:720px;}
.section-head h2{
  font-size:clamp(28px,3vw,40px);font-weight:800;
  line-height:1.2;letter-spacing:-.015em;margin-bottom:16px;
}
.section-head p{font-size:17px;line-height:1.8;color:var(--muted);}
.section-dark .section-head p{color:rgba(242,242,238,.7);}
.row-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;max-width:none;
}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--text);
  padding-bottom:4px;border-bottom:1px solid var(--line);
  transition:color .22s var(--ease),border-color .22s var(--ease);
}
.link-arrow:hover{color:var(--ink);border-color:var(--lime);}
.link-arrow:hover .arw{transform:translateX(4px);}
.link-arrow .arw{transition:transform .22s var(--ease);}

/* ---------- 价值区块 ---------- */
.feature-row{
  display:grid;grid-template-columns:1.05fr .95fr;
  gap:64px;align-items:center;
  padding:56px 0;border-top:1px solid var(--line);
}
.feature-row:first-of-type{border-top:none;padding-top:0;}
.feature-row.reverse .feature-media{order:-1;}
.feature-num{
  font-size:92px;font-weight:900;line-height:.9;letter-spacing:-.05em;
  color:transparent;-webkit-text-stroke:1.5px #CFCFC6;
  margin-bottom:18px;font-variant-numeric:tabular-nums;
}
.feature-row h3{font-size:24px;font-weight:800;line-height:1.35;margin-bottom:14px;letter-spacing:-.01em;}
.feature-row p{font-size:16px;line-height:1.85;color:var(--muted);margin-bottom:22px;max-width:440px;}
.feature-list li{
  position:relative;padding-left:22px;margin-bottom:10px;
  font-size:15px;color:var(--text);
}
.feature-list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:8px;height:8px;border-radius:50%;background:var(--lime);
  box-shadow:0 0 0 3px rgba(201,242,77,.2);
}
.feature-media{
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);background:#fff;
  box-shadow:var(--shadow-1);
  transition:transform .32s var(--ease),box-shadow .32s var(--ease),border-color .32s var(--ease);
}
.feature-media:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--lime);}
.feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .48s var(--ease);}
.feature-media:hover img{transform:scale(1.03);}

/* ---------- 截图轮播 ---------- */
.shot-shell{position:relative;}
.shot-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
  max-width:720px;margin:0 auto;
}
.shot-card .shot-img{aspect-ratio:16/9;overflow:hidden;background:var(--surface);}
.shot-card .shot-img img{width:100%;height:100%;object-fit:cover;}
.shot-card .shot-txt{padding:24px 28px 28px;}
.shot-card .shot-txt h3{font-size:21px;font-weight:800;margin-bottom:8px;}
.shot-card .shot-txt p{font-size:15px;color:var(--muted);line-height:1.8;}
.shot-controls{
  display:flex;align-items:center;gap:20px;
  max-width:720px;margin:28px auto 0;
}
.shot-nav{
  width:44px;height:44px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fff;color:var(--text);
  display:grid;place-items:center;font-size:16px;
  transition:all .22s var(--ease);
}
.shot-nav:hover{background:var(--ink);color:var(--lime);border-color:var(--ink);}
.shot-progress{flex:1;height:3px;background:#DCDCD3;border-radius:3px;overflow:hidden;}
.shot-progress span{
  display:block;height:100%;width:20%;background:var(--lime);border-radius:3px;
  transition:width .32s var(--ease);
}
.shot-count{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;letter-spacing:.06em;}
.shot-count b{color:var(--text);font-size:15px;}

/* ---------- 系统要求 Tab ---------- */
.req-tabs{
  display:flex;gap:8px;border-bottom:1px solid var(--line);
  margin-bottom:32px;flex-wrap:wrap;
}
.req-tab{
  position:relative;height:52px;padding:0 22px;
  font-size:15px;font-weight:700;color:var(--muted);
  background:transparent;border:none;
  transition:color .22s var(--ease);
}
.req-tab::after{
  content:"";position:absolute;left:50%;bottom:-1px;transform:translateX(-50%) scaleX(0);
  width:100%;height:3px;background:var(--lime);border-radius:3px 3px 0 0;
  transition:transform .24s var(--ease);
}
.req-tab.active{color:var(--text);}
.req-tab.active::after{transform:translateX(-50%) scaleX(1);}
.req-tab:hover{color:var(--text);}
.req-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:10px 28px;
}
.req-line{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:18px 0;border-bottom:1px solid var(--line);
}
.req-line:last-child{border-bottom:none;}
.req-key{font-size:15px;color:var(--muted);}
.req-val{font-size:15px;font-weight:700;color:var(--text);text-align:right;font-variant-numeric:tabular-nums;}

/* ---------- 评价墙 ---------- */
.review-wall{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:24px;align-items:start;
}
.review-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-1);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.review-card:hover{transform:translateY(-2px);border-color:var(--lime);box-shadow:var(--shadow-2);}
.review-card.wide{grid-row:span 2;}
.review-card.dark{
  background:var(--ink-2);border-color:rgba(255,255,255,.1);color:#F2F2EE;
  box-shadow:none;
}
.review-card.dark .review-name{color:#fff;}
.review-card.dark .review-meta{color:rgba(242,242,238,.55);}
.review-card.dark .review-text{color:rgba(242,242,238,.88);}
.stars{display:flex;gap:3px;color:var(--orange);font-size:14px;margin-bottom:14px;}
.review-card.dark .stars{color:var(--lime);}
.review-text{font-size:15px;line-height:1.8;color:var(--text);margin-bottom:18px;}
.review-foot{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px solid var(--line);}
.review-card.dark .review-foot{border-top-color:rgba(255,255,255,.12);}
.avatar{
  width:38px;height:38px;border-radius:50%;flex:none;
  display:grid;place-items:center;font-size:14px;font-weight:800;
  background:var(--surface);color:var(--ink);
}
.review-card.dark .avatar{background:var(--lime);}
.review-name{font-size:14px;font-weight:700;}
.review-meta{font-size:12px;color:var(--muted);}
.review-pic{border-radius:var(--radius-md);overflow:hidden;margin-bottom:16px;border:1px solid var(--line);}
.review-pic img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ---------- 下载区 ---------- */
.dl-wrap{
  display:grid;grid-template-columns:1.1fr .9fr;
  gap:64px;align-items:center;
}
.dl-left h2{font-size:clamp(28px,3vw,40px);font-weight:800;line-height:1.2;margin-bottom:16px;color:#fff;}
.dl-left p{font-size:16px;line-height:1.85;color:rgba(242,242,238,.72);margin-bottom:32px;max-width:440px;}
.qr-box{
  width:132px;height:132px;border-radius:var(--radius-md);
  background:#fff;padding:12px;border:1px solid rgba(255,255,255,.14);
  display:grid;place-items:center;
}
.qr-box img{width:100%;height:100%;object-fit:contain;border-radius:6px;}
.qr-note{font-size:13px;color:rgba(242,242,238,.6);margin-top:12px;}
.dl-btns{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.dl-btn{
  display:flex;flex-direction:column;gap:4px;
  padding:18px 20px;border-radius:var(--radius-md);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  color:#fff;
  transition:all .24s var(--ease);
}
.dl-btn:hover{background:var(--lime);color:var(--ink);border-color:var(--lime);transform:translateY(-2px);}
.dl-btn .dl-name{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;}
.dl-btn .dl-desc{font-size:12.5px;color:rgba(242,242,238,.6);font-variant-numeric:tabular-nums;}
.dl-btn:hover .dl-desc{color:rgba(14,16,19,.7);}
.dl-safe{
  margin-top:32px;font-size:13px;color:rgba(242,242,238,.55);
  display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;
}
.dl-safe i{color:var(--lime);}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.news-card:hover{transform:translateY(-2px);border-color:var(--lime);box-shadow:var(--shadow-2);}
.news-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--surface);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .48s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.badge-soft{
  align-self:flex-start;
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;font-weight:600;
  background:rgba(201,242,77,.24);color:#3D4A0C;
}
.news-body h3{
  font-size:19px;font-weight:700;line-height:1.5;margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-body h3 a{text-decoration:underline;text-decoration-color:var(--lime);text-underline-offset:4px;}
.news-body p{
  font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.news-foot .arw{transition:transform .22s var(--ease);color:var(--text);}
.news-card:hover .news-foot .arw{transform:translateX(4px);}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-lg);
}
.empty-state i{font-size:48px;color:var(--muted);display:block;margin-bottom:14px;}
.empty-state p{font-size:14px;color:var(--muted);margin-bottom:20px;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:64px;align-items:start;}
.faq-side{position:sticky;top:96px;}
.faq-side h2{font-size:clamp(28px,3vw,38px);font-weight:800;line-height:1.2;margin-bottom:16px;}
.faq-side p{font-size:16px;color:var(--muted);line-height:1.8;margin-bottom:26px;}
.accordion-x .accordion-item{
  background:transparent;border:none;border-bottom:1px solid var(--line);
}
.accordion-x .accordion-button{
  background:transparent;color:var(--text);
  font-size:17px;font-weight:700;line-height:1.6;
  padding:22px 40px 22px 20px;
  box-shadow:none;border-radius:0;
}
.accordion-x .accordion-button::after{display:none;}
.accordion-x .accordion-button::before{
  content:"+";position:absolute;right:8px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--muted);line-height:1;
  transition:color .22s var(--ease);
}
.accordion-x .accordion-button:not(.collapsed)::before{content:"−";color:var(--text);}
.accordion-x .accordion-button:not(.collapsed){color:var(--text);background:transparent;}
.accordion-x .accordion-button:focus{box-shadow:none;}
.accordion-x .accordion-button:hover::before{color:var(--lime);}
.accordion-x .accordion-body{
  padding:0 40px 24px 20px;font-size:15px;line-height:1.85;color:var(--muted);
}
.accordion-x .accordion-item:has(.accordion-button:not(.collapsed)){
  border-left:3px solid var(--lime);padding-left:0;
}
.accordion-x .accordion-item:has(.accordion-button:not(.collapsed)) .accordion-button{padding-left:20px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(242,242,238,.72);padding:72px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:4fr 2fr 2fr 2fr;gap:40px;
  padding-bottom:56px;
}
.footer-brand .brand{color:#fff;margin-bottom:18px;}
.footer-brand p{font-size:14px;line-height:1.85;max-width:300px;margin-bottom:22px;}
.footer-qr{width:112px;height:112px;border-radius:var(--radius-sm);background:#fff;padding:10px;}
.footer-qr img{width:100%;height:100%;object-fit:contain;}
.footer-col h4{
  font-size:13px;font-weight:700;letter-spacing:.18em;
  color:#fff;margin-bottom:18px;text-transform:uppercase;
}
.footer-col a,.footer-col span{display:block;font-size:14px;line-height:2.2;transition:color .22s var(--ease);}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px 24px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(242,242,238,.5);
}
.footer-bottom a:hover{color:var(--lime);}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .48s var(--ease),transform .48s var(--ease);}
.reveal.in{opacity:1;transform:translateY(0);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .footer-grid{grid-template-columns:3fr 2fr 2fr;}
  .footer-brand{grid-column:1/-1;}
  .footer-brand p{max-width:none;}
}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .nav-search{display:none;}
  .nav-burger{display:grid;}
  .site-header{height:66px;}
  .hero{padding:130px 0 68px;min-height:auto;}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:22px 18px;}
  .hero-visual{margin-top:44px;}
  .section{padding:72px 0;}
  .feature-row{grid-template-columns:1fr;gap:32px;padding:44px 0;}
  .feature-row.reverse .feature-media{order:0;}
  .feature-num{font-size:72px;}
  .review-wall{grid-template-columns:repeat(2,1fr);}
  .review-card.wide{grid-row:auto;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .dl-wrap{grid-template-columns:1fr;gap:40px;}
  .faq-wrap{grid-template-columns:1fr;gap:36px;}
  .faq-side{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section-head{margin-bottom:36px;}
  .row-head{flex-direction:column;align-items:flex-start;gap:14px;}
}
@media (max-width:767.98px){
  .container-xl{padding:0 18px;}
  .brand-text{font-size:17px;}
  .brand-text small{display:none;}
  .hero h1{font-size:clamp(30px,8vw,42px);}
  .hero-sub{font-size:16px;}
  .hero-actions .btn-x{flex:1 1 100%;height:50px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .stat-num{font-size:22px;}
  .review-wall{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .dl-btns{grid-template-columns:1fr;}
  .shot-controls{margin-top:22px;gap:14px;}
  .req-panel{padding:6px 18px;}
  .req-line{flex-direction:column;align-items:flex-start;gap:4px;}
  .req-val{text-align:left;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .feature-num{font-size:60px;}
  .section{padding:56px 0;}
}
@media (max-width:519.98px){
  .hero{padding:112px 0 56px;}
  .section-head h2{font-size:26px;}
  .shot-card .shot-txt{padding:20px 20px 24px;}
  .accordion-x .accordion-button{font-size:15.5px;padding-right:34px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none;}
  .hero-visual{animation:none;}
}

/* roulang page: category1 */
:root{
  --ink:#0E1013;
  --ink-2:#1C2026;
  --paper:#F6F6F2;
  --paper-2:#EFEFE8;
  --line:#E3E3DC;
  --text:#15181C;
  --muted:#6C727B;
  --lime:#C9F24D;
  --lime-soft:rgba(201,242,77,.16);
  --orange:#FF6B3D;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(14,16,19,.06);
  --shadow-lg:0 14px 34px -14px rgba(14,16,19,.22);
  --ease:cubic-bezier(.22,.7,.28,1);
  --nav-h:76px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .24s var(--ease),opacity .24s var(--ease);}
a:hover{color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;border:0;background:none;cursor:pointer;}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px;}
.container-xl{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-sm{padding:72px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.18em;font-weight:700;color:var(--muted);
  text-transform:uppercase;margin-bottom:18px;
}
.eyebrow::before{content:"";display:block;width:22px;height:2px;background:var(--lime);}
.section-title{font-size:clamp(28px,3vw,40px);font-weight:800;line-height:1.24;letter-spacing:-.01em;}
.section-lead{font-size:18px;line-height:1.8;color:var(--muted);margin-top:14px;max-width:660px;}
.text-muted-2{color:var(--muted);}

/* ============ HEADER / NAV ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--nav-h);
  display:flex;align-items:center;
  background:rgba(246,246,242,.92);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:height .24s var(--ease),background .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  height:62px;background:rgba(246,246,242,.96);
  box-shadow:0 8px 24px -18px rgba(14,16,19,.5);
}
.nav-inner{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:32px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:9px;background:var(--lime);color:var(--ink);
  display:grid;place-items:center;font-weight:900;font-size:17px;letter-spacing:-.04em;
}
.brand-text{font-weight:800;font-size:19px;letter-spacing:-.01em;color:var(--text);}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-link{
  position:relative;padding:10px 14px;font-size:15px;font-weight:600;color:var(--muted);
  border-radius:8px;white-space:nowrap;
}
.nav-link:hover{color:var(--text);opacity:.9;}
.nav-link.active{color:var(--text);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;bottom:2px;width:18px;height:2px;background:var(--lime);border-radius:2px;
}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-toggle{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;color:var(--muted);
  transition:background .24s var(--ease),color .24s var(--ease);
}
.search-toggle:hover{background:var(--paper-2);color:var(--text);}
.nav-search{
  display:flex;align-items:center;overflow:hidden;width:0;opacity:0;
  transition:width .32s var(--ease),opacity .24s var(--ease);
}
.nav-search.open{width:200px;opacity:1;}
.nav-search input{
  width:100%;height:40px;border-radius:var(--radius-btn);border:1px solid var(--line);
  background:#fff;padding:0 12px;font-size:14px;color:var(--text);
}
.nav-search input::placeholder{color:var(--muted);}
.nav-search input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 3px var(--lime-soft);}
.btn-primary-lime{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  background:var(--lime);color:var(--ink);font-weight:700;font-size:15px;
  border:1px solid var(--lime);
  transition:background .24s var(--ease),color .24s var(--ease),transform .18s var(--ease),border-color .24s var(--ease);
}
.btn-primary-lime i{transition:transform .24s var(--ease);font-size:13px;}
.btn-primary-lime:hover{background:var(--ink);color:var(--lime);border-color:var(--ink);}
.btn-primary-lime:hover i{transform:translateX(4px);}
.btn-primary-lime:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  background:transparent;color:var(--text);font-weight:700;font-size:15px;
  border:1px solid var(--line);
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .18s var(--ease);
}
.btn-ghost i{font-size:13px;transition:transform .24s var(--ease);}
.btn-ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.btn-ghost:hover i{transform:translateX(4px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-ghost.on-dark{color:var(--paper);border-color:rgba(255,255,255,.32);}
.btn-ghost.on-dark:hover{background:var(--paper);color:var(--ink);border-color:var(--paper);}
.hamburger{
  display:none;width:44px;height:44px;border-radius:10px;place-items:center;color:var(--text);
  border:1px solid var(--line);
}
.hamburger:hover{background:var(--paper-2);}
.mobile-drawer{
  position:fixed;inset:0;z-index:1200;background:var(--ink);color:var(--paper);
  transform:translateX(100%);transition:transform .38s var(--ease);
  display:flex;flex-direction:column;padding:24px;
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:40px;}
.drawer-close{width:44px;height:44px;display:grid;place-items:center;border-radius:10px;color:var(--paper);border:1px solid rgba(255,255,255,.18);}
.drawer-links{display:flex;flex-direction:column;gap:6px;}
.drawer-links a{
  font-size:24px;font-weight:700;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.1);color:var(--paper);
}
.drawer-links a.active{color:var(--lime);}
.drawer-bottom{margin-top:auto;padding-top:24px;}
.drawer-bottom .btn-primary-lime{width:100%;justify-content:center;height:52px;}
body.locked{overflow:hidden;}

/* ============ PAGE HERO ============ */
.page-hero{
  position:relative;padding:calc(var(--nav-h) + 64px) 0 76px;
  background:var(--paper-2);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(14,16,19,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(14,16,19,.045) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse at 78% 30%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(ellipse at 78% 30%,#000 0%,transparent 72%);
  pointer-events:none;
}
.page-hero .container-xl{position:relative;}
.breadcrumb-line{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px;}
.breadcrumb-line a{color:var(--muted);}
.breadcrumb-line a:hover{color:var(--text);}
.breadcrumb-line .sep{opacity:.5;}
.breadcrumb-line .current{color:var(--text);font-weight:700;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.page-hero h1{
  font-size:clamp(34px,4vw,52px);font-weight:800;line-height:1.14;letter-spacing:-.02em;margin-bottom:20px;
}
.page-hero h1 em{font-style:normal;position:relative;white-space:nowrap;}
.page-hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:10px;background:var(--lime);opacity:.55;z-index:-1;border-radius:2px;
}
.hero-desc{font-size:18px;line-height:1.8;color:#41464d;max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.hero-meta-row{display:flex;flex-wrap:wrap;gap:28px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line);}
.hero-meta-item .num{font-size:24px;font-weight:800;letter-spacing:-.02em;line-height:1.2;}
.hero-meta-item .lbl{font-size:13px;color:var(--muted);margin-top:2px;}
.hero-figure{
  border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-lg);background:#fff;
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .48s var(--ease);}
.hero-figure:hover img{transform:scale(1.03);}

/* ============ NUMBER CARDS ============ */
.step-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 24px 26px;position:relative;transition:transform .32s var(--ease),border-color .32s var(--ease),box-shadow .32s var(--ease);
}
.step-card:hover{transform:translateY(-2px);border-color:var(--lime);box-shadow:var(--shadow-lg);}
.step-card .num{
  font-size:44px;font-weight:800;line-height:1;letter-spacing:-.04em;
  color:transparent;-webkit-text-stroke:1.4px #C3C4BC;
}
.step-card:hover .num{-webkit-text-stroke:1.4px var(--ink);}
.step-card h3{font-size:19px;font-weight:700;margin:18px 0 8px;}
.step-card p{font-size:14.5px;line-height:1.75;color:var(--muted);}
.step-card .rule{height:1px;background:var(--line);margin-top:20px;}

/* ============ ASYMMETRIC GRID ============ */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;position:relative;overflow:hidden;
  transition:transform .32s var(--ease),border-color .32s var(--ease),box-shadow .32s var(--ease);
}
.feature-card:hover{transform:translateY(-2px);border-color:var(--lime);box-shadow:var(--shadow-lg);}
.feature-card.wide{grid-column:span 2;display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center;padding:30px;}
.feature-card .tag{
  display:inline-block;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;
  letter-spacing:.04em;background:var(--lime-soft);color:#41480f;
}
.feature-card .tag.neutral{background:var(--paper-2);color:var(--muted);}
.feature-card h3{font-size:21px;font-weight:700;margin:16px 0 10px;line-height:1.4;}
.feature-card p{font-size:15px;line-height:1.8;color:var(--muted);}
.feature-card .thumb{border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);}
.feature-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .48s var(--ease);}
.feature-card:hover .thumb img{transform:scale(1.03);}
.mini-list{margin-top:16px;display:flex;flex-direction:column;gap:9px;}
.mini-list li{display:flex;gap:10px;font-size:14.5px;color:#3d4249;line-height:1.65;}
.mini-list li i{color:var(--ink);margin-top:6px;font-size:11px;}
.mini-list li i.dot{color:var(--lime);}

/* ============ COMPARE ============ */
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:30px;
}
.compare-col h3{font-size:20px;font-weight:700;display:flex;align-items:center;gap:10px;margin-bottom:20px;}
.compare-col h3 .marker{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:12px;}
.compare-col.yes h3 .marker{background:var(--lime);color:var(--ink);}
.compare-col.no h3 .marker{background:var(--paper-2);color:var(--muted);}
.compare-col li{
  display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);
  font-size:15px;line-height:1.7;
}
.compare-col li:last-child{border-bottom:0;}
.compare-col.yes li i{color:#8fb312;}
.compare-col.no li i{color:#B9BAB2;}
.compare-col.no li{color:var(--muted);}

/* ============ FLOW ============ */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative;counter-reset:flow;}
.flow::before{
  content:"";position:absolute;top:32px;left:12%;right:12%;height:1px;
  border-top:1px dashed #CFD0C7;z-index:0;
}
.flow-item{position:relative;z-index:1;background:transparent;text-align:left;padding-top:0;}
.flow-dot{
  width:64px;height:64px;border-radius:50%;background:var(--paper);border:1px solid var(--line);
  display:grid;place-items:center;font-weight:800;font-size:19px;color:var(--ink);
  margin-bottom:20px;transition:background .3s var(--ease),border-color .3s var(--ease);
}
.flow-item:hover .flow-dot{background:var(--lime);border-color:var(--lime);}
.flow-item h3{font-size:19px;font-weight:700;margin-bottom:8px;}
.flow-item p{font-size:15px;line-height:1.8;color:var(--muted);}

/* ============ SPEC ============ */
.spec-band{background:var(--ink);color:var(--paper);border-radius:24px;padding:56px;position:relative;overflow:hidden;}
.spec-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,77,.16),transparent 68%);
}
.spec-band .eyebrow{color:rgba(242,242,238,.6);}
.spec-band h2{font-size:clamp(26px,2.6vw,34px);font-weight:800;line-height:1.28;margin-bottom:14px;}
.spec-band p.lead-dark{color:rgba(242,242,238,.68);font-size:16px;max-width:560px;line-height:1.8;}
.spec-rows{margin-top:36px;display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px;position:relative;z-index:1;}
.spec-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 0;border-bottom:1px solid rgba(255,255,255,.1);font-size:15px;
}
.spec-row span:first-child{color:rgba(242,242,238,.6);}
.spec-row span:last-child{font-weight:700;color:var(--paper);text-align:right;}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:.8fr 1.4fr;gap:64px;align-items:start;}
.faq-side{position:sticky;top:100px;}
.faq-side p{color:var(--muted);margin-top:14px;font-size:15.5px;line-height:1.8;max-width:320px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0 22px 0;text-align:left;font-size:17px;font-weight:700;color:var(--text);
  transition:color .24s var(--ease),padding-left .24s var(--ease);
}
.faq-q:hover{color:#2c3138;}
.faq-item.open .faq-q{padding-left:16px;position:relative;}
.faq-item.open .faq-q::before{content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:2px;background:var(--lime);}
.faq-icon{flex-shrink:0;width:22px;height:22px;position:relative;color:var(--muted);}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.faq-icon::before{left:0;top:10px;width:22px;height:2px;}
.faq-icon::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-item.open .faq-icon{color:var(--ink);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease);}
.faq-a p{padding:0 32px 24px 16px;font-size:15.5px;line-height:1.85;color:var(--muted);}

/* ============ CTA BAND ============ */
.cta-band{
  background:var(--ink);color:var(--paper);border-radius:24px;padding:64px;
  display:grid;grid-template-columns:1.3fr auto;gap:40px;align-items:center;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;left:-60px;bottom:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,77,.14),transparent 70%);
}
.cta-band h2{font-size:clamp(26px,2.8vw,36px);font-weight:800;line-height:1.28;position:relative;}
.cta-band p{color:rgba(242,242,238,.7);margin-top:14px;font-size:16px;max-width:520px;line-height:1.8;position:relative;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;}

/* ============ FOOTER ============ */
.site-footer{background:var(--ink);color:rgba(242,242,238,.72);padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 2fr 2.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand .brand-text{color:var(--paper);}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(242,242,238,.6);max-width:340px;}
.footer-qr{margin-top:22px;}
.footer-qr img{width:112px;height:112px;border-radius:10px;border:1px solid rgba(255,255,255,.14);background:#fff;padding:6px;}
.footer-col h4{font-size:13px;letter-spacing:.16em;color:rgba(242,242,238,.5);font-weight:700;margin-bottom:16px;}
.footer-col a,.footer-col span{display:block;font-size:14px;line-height:2.2;color:rgba(242,242,238,.72);}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(242,242,238,.45);
}

/* ============ REVEAL ============ */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .48s var(--ease),transform .48s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ============ RESPONSIVE ============ */
@media (max-width:1199px){
  .container-xl,.nav-inner{padding:0 20px;}
  .feature-card.wide{grid-template-columns:1fr;}
  .spec-band{padding:44px;}
  .cta-band{padding:48px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-search.open{width:150px;}
  .hamburger{display:grid;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .page-hero{padding:calc(var(--nav-h) + 44px) 0 56px;}
  .section{padding:72px 0;}
  .step-cards{grid-template-columns:repeat(2,1fr);}
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .feature-card.wide{grid-column:span 2;}
  .flow{grid-template-columns:1fr;gap:32px;}
  .flow::before{display:none;}
  .spec-rows{grid-template-columns:1fr;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .faq-side{position:static;}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .spec-band{padding:36px;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .section{padding:52px 0;}
  .hero-actions .btn-primary-lime,.hero-actions .btn-ghost{width:100%;justify-content:center;height:50px;}
  .step-cards{grid-template-columns:1fr;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-card.wide{grid-column:span 1;}
  .compare-wrap{grid-template-columns:1fr;}
  .hero-meta-row{gap:20px;}
  .cta-actions .btn-primary-lime,.cta-actions .btn-ghost{width:100%;justify-content:center;height:50px;}
  .nav-tools .btn-primary-lime{display:none;}
  .footer-grid{grid-template-columns:1fr;}
  .spec-band{border-radius:18px;padding:28px;}
  .cta-band{border-radius:18px;padding:32px 24px;}
  .page-hero h1{font-size:clamp(28px,7vw,36px);}
}
@media (max-width:575px){
  .container-xl,.nav-inner{padding:0 16px;}
  .brand-text{font-size:17px;}
  .faq-q{font-size:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --ink:#0E1013;
  --ink-2:#1C2026;
  --paper:#F6F6F2;
  --paper-2:#EFEFE8;
  --line:#E3E3DC;
  --text:#15181C;
  --muted:#6C727B;
  --dark-text:#F2F2EE;
  --lime:#C9F24D;
  --lime-deep:#A8D62B;
  --orange:#FF6B3D;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(14,16,19,.06);
  --shadow-md:0 14px 34px -14px rgba(14,16,19,.22);
  --ease:cubic-bezier(.22,.7,.28,1);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
button{font-family:inherit}
h1,h2,h3,h4,h5,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px}
::selection{background:var(--lime);color:var(--ink)}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,246,242,.92);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(246,246,242,.97);box-shadow:0 8px 24px -18px rgba(14,16,19,.5)}
.header-inner{display:flex;align-items:center;gap:20px;height:76px;transition:height .24s var(--ease)}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--lime);color:var(--ink);
  display:grid;place-items:center;font-size:17px;font-weight:900;letter-spacing:.02em;
  box-shadow:inset 0 -2px 0 rgba(14,16,19,.12);
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--text);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;padding:10px 14px;border-radius:8px;font-size:15px;font-weight:500;
  color:var(--text);transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:3px;width:0;height:2px;border-radius:2px;
  background:var(--lime-deep);transform:translateX(-50%);transition:width .26s var(--ease);
}
.nav-link:hover{background:rgba(14,16,19,.04)}
.nav-link:hover::after,.nav-link.active::after{width:18px}
.nav-link.active{font-weight:700}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.search-wrap{position:relative;display:flex;align-items:center}
.icon-btn{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;cursor:pointer;color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{border-color:var(--lime-deep);box-shadow:0 0 0 3px rgba(201,242,77,.28)}
.icon-btn:active{transform:translateY(1px)}
.search-form{
  position:absolute;right:52px;top:50%;transform:translateY(-50%);
  width:0;overflow:hidden;opacity:0;pointer-events:none;
  transition:width .3s var(--ease),opacity .2s var(--ease);
}
.search-wrap.open .search-form{width:248px;opacity:1;pointer-events:auto}
.search-form input{
  width:100%;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;padding:0 14px;font-size:14px;color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-form input::placeholder{color:var(--muted)}
.search-form input:focus{outline:none;border-color:var(--lime-deep);box-shadow:0 0 0 3px rgba(201,242,77,.34)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-sm);border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1.2;cursor:pointer;white-space:nowrap;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .16s var(--ease),box-shadow .24s var(--ease);
}
.btn svg{transition:transform .24s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:0 6px 18px -12px rgba(14,16,19,.7)}
.btn-primary:hover{background:var(--ink);color:var(--lime)}
.btn-outline{background:transparent;border-color:rgba(21,24,28,.28);color:var(--text)}
.btn-outline:hover{background:var(--ink);border-color:var(--ink);color:var(--lime)}
.btn-sm{padding:10px 16px;font-size:14px}
.btn-block{display:flex;width:100%}
.btn[disabled]{opacity:.4;pointer-events:none}

.menu-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;cursor:pointer;padding:0;place-items:center;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;margin:3px auto;transition:.24s var(--ease)}

/* ---------- mobile drawer ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:1060;background:var(--ink);color:var(--dark-text);
  padding:24px;display:flex;flex-direction:column;gap:28px;
  transform:translateX(102%);transition:transform .34s var(--ease);
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-head .brand-text{color:#fff}
.drawer-close{
  width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.2);
  background:transparent;color:#fff;font-size:22px;line-height:1;cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{
  padding:14px 4px;font-size:22px;font-weight:700;color:#F2F2EE;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.drawer-nav a:hover{color:var(--lime)}
.drawer-cta{margin-top:auto}
body.no-scroll{overflow:hidden}

/* ---------- page hero ---------- */
.page-hero{
  background:var(--paper-2);
  border-bottom:1px solid var(--line);
  padding:44px 0 44px;
  background-image:
    linear-gradient(rgba(14,16,19,.032) 1px,transparent 1px),
    linear-gradient(90deg,rgba(14,16,19,.032) 1px,transparent 1px);
  background-size:64px 64px;
  background-position:center;
}
.breadcrumb-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px}
.breadcrumb-bar a{color:var(--muted);transition:color .2s var(--ease)}
.breadcrumb-bar a:hover{color:var(--lime-deep)}
.breadcrumb-bar .sep{color:#C3C6BF}
.breadcrumb-bar .current{color:var(--text);font-weight:600}
.badge-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;font-size:12px;letter-spacing:.04em;font-weight:600;
  background:rgba(201,242,77,.24);color:#3D4A11;border:1px solid rgba(146,183,32,.32);
}
.page-title{
  margin:18px 0 0;
  font-size:clamp(26px,3.1vw,36px);
  font-weight:800;line-height:1.38;letter-spacing:-.015em;
  max-width:900px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin-top:20px;font-size:13px;color:var(--muted);
}
.meta-row .dot{color:#C3C6BF}
.meta-row strong{color:var(--text);font-weight:600}

/* ---------- article layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;
  align-items:start;padding:52px 0 88px;
}
.article-main{min-width:0;max-width:800px}
.article-body{
  font-size:17px;line-height:1.9;color:#20242A;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 22px}
.article-body h2{
  position:relative;margin:46px 0 18px;padding-left:14px;
  font-size:clamp(21px,2.3vw,26px);font-weight:800;line-height:1.45;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;
  background:var(--lime-deep);border-radius:2px;
}
.article-body h3{margin:32px 0 14px;font-size:20px;font-weight:700;color:var(--text)}
.article-body h4{margin:26px 0 12px;font-size:17px;font-weight:700;color:var(--text)}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:22px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:10px}
.article-body ul li::marker{color:var(--lime-deep);font-size:.9em}
.article-body ol li::marker{color:var(--text);font-weight:800}
.article-body a{color:#3D4A11;text-decoration:underline;text-decoration-color:rgba(168,214,43,.65);text-underline-offset:3px;transition:color .2s var(--ease)}
.article-body a:hover{color:var(--ink);text-decoration-color:var(--lime-deep)}
.article-body strong{font-weight:800;color:var(--text)}
.article-body blockquote{
  margin:0 0 24px;padding:20px 22px;background:#F0F0EA;
  border-left:4px solid var(--lime-deep);border-radius:0 var(--radius-md) var(--radius-md) 0;
  color:#3A4048;font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-md);margin:10px auto 12px;height:auto;box-shadow:var(--shadow-sm)}
.article-body figure{margin:24px 0}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--muted);text-align:center}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 26px;font-size:15px;line-height:1.7}
.article-body th{background:var(--ink);color:var(--dark-text);text-align:left;padding:12px 14px;font-weight:600;border:1px solid var(--ink)}
.article-body td{padding:12px 14px;border:1px solid var(--line);background:#fff}
.article-body pre{
  margin:0 0 24px;padding:18px 20px;background:#F0F0EA;border:1px solid var(--line);
  border-radius:var(--radius-md);overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

.article-empty{
  padding:56px 28px;text-align:center;background:#fff;border:1px dashed var(--line);
  border-radius:var(--radius-lg);
}
.article-empty svg{color:var(--muted);margin-bottom:14px}
.article-empty p{font-size:15px;color:var(--muted);margin:0 0 20px}

.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:40px;padding-top:26px;border-top:1px solid var(--line)}
.tag-row .label{font-size:13px;color:var(--muted);letter-spacing:.04em}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  font-size:13px;color:#3A4048;background:#fff;border:1px solid var(--line);
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.tag:hover{border-color:var(--lime-deep);color:#3D4A11;background:rgba(201,242,77,.16)}

.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px}
.post-nav a{
  display:block;padding:20px 22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.post-nav a:hover{border-color:var(--lime-deep);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.post-nav .pn-dir{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);letter-spacing:.06em}
.post-nav .pn-title{margin-top:8px;font-size:16px;font-weight:700;color:var(--text);line-height:1.55}
.post-nav a.next{text-align:right}
.post-nav a.next .pn-dir{justify-content:flex-end}

.related-block{margin-top:56px}
.related-block h2{font-size:22px;font-weight:800;margin-bottom:20px;letter-spacing:-.01em}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.related-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.related-card:hover{border-color:var(--lime-deep);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.related-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--paper-2)}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .48s var(--ease)}
.related-card:hover .related-thumb img{transform:scale(1.04)}
.related-body{padding:16px 16px 18px}
.related-body .rb-tag{font-size:12px;color:#5C6B24;letter-spacing:.04em}
.related-body h3{margin-top:8px;font-size:15px;font-weight:700;line-height:1.6;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- sidebar ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px;box-shadow:var(--shadow-sm);
}
.side-download{background:var(--ink);border-color:rgba(255,255,255,.09);color:var(--dark-text);box-shadow:none}
.side-download h3{font-size:17px;font-weight:800;margin-bottom:10px;color:#fff}
.side-download p{font-size:13.5px;line-height:1.75;color:rgba(242,242,238,.72);margin-bottom:18px}
.side-download .btn-primary:hover{background:var(--lime);color:var(--ink)}
.side-note{display:block;margin-top:12px;font-size:12px;color:rgba(242,242,238,.55);letter-spacing:.03em}
.side-card h3.side-title{
  font-size:15px;font-weight:800;margin-bottom:16px;padding-bottom:12px;
  border-bottom:1px solid var(--line);color:var(--text);
}
.side-post{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);transition:opacity .2s var(--ease)}
.side-post:last-of-type{border-bottom:0;padding-bottom:0}
.side-post:hover .sp-title{color:#3D4A11}
.side-post .sp-thumb{width:64px;height:64px;border-radius:10px;overflow:hidden;flex-shrink:0;background:var(--paper-2)}
.side-post .sp-thumb img{width:100%;height:100%;object-fit:cover}
.side-post .sp-title{
  font-size:14px;font-weight:600;line-height:1.55;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s var(--ease);
}
.side-post .sp-meta{margin-top:6px;font-size:12px;color:var(--muted)}
.side-back{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--muted);transition:color .2s var(--ease)}
.side-back:hover{color:var(--ink)}

/* ---------- cta strip ---------- */
.cta-strip{background:var(--ink);color:var(--dark-text);padding:64px 0}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px}
.cta-copy h2{font-size:clamp(24px,2.8vw,32px);font-weight:800;line-height:1.3;color:#fff;letter-spacing:-.015em}
.cta-copy p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(242,242,238,.7);max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-strip .btn-outline{border-color:rgba(255,255,255,.32);color:#F2F2EE}
.cta-strip .btn-outline:hover{background:var(--lime);border-color:var(--lime);color:var(--ink)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--dark-text);padding:72px 0 28px;border-top:1px solid rgba(255,255,255,.06)}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 2fr 2.6fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(242,242,238,.66);max-width:340px;margin-bottom:20px}
.footer-qr{width:112px;height:112px;border-radius:var(--radius-md);overflow:hidden;border:1px solid rgba(255,255,255,.14);background:#1C2026}
.footer-qr img{width:100%;height:100%;object-fit:cover}
.footer-col h4{
  font-size:13px;font-weight:700;letter-spacing:.18em;color:rgba(242,242,238,.5);
  margin-bottom:18px;text-transform:uppercase;
}
.footer-col a,.footer-col span{display:block;font-size:14px;line-height:2.2;color:rgba(242,242,238,.76);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(242,242,238,.5);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .48s var(--ease),transform .48s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:40px}
}
@media (max-width:991.98px){
  .nav-links{display:none}
  .header-actions .btn{display:none}
  .menu-toggle{display:grid}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;padding:40px 0 64px}
  .article-side{position:static;top:auto;flex-direction:row;flex-wrap:wrap}
  .article-side .side-card{flex:1 1 280px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:767.98px){
  .container-xl{padding-left:18px;padding-right:18px}
  .page-hero{padding:32px 0 34px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{margin-top:36px}
  .related-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav a.next{text-align:left}
  .post-nav a.next .pn-dir{justify-content:flex-start}
  .cta-strip{padding:48px 0}
  .site-footer{padding:52px 0 24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  .brand-text{font-size:17px}
  .header-inner{height:64px;gap:12px}
  .search-wrap.open .search-form{width:160px}
  .btn{padding:12px 18px;font-size:14.5px}
  .article-empty{padding:40px 18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#0E1013;
  --ink-2:#1C2026;
  --paper:#F6F6F2;
  --sand:#EFEFE8;
  --line:#E3E3DC;
  --text:#15181C;
  --muted:#6C727B;
  --muted-2:#8C929A;
  --lime:#C9F24D;
  --lime-soft:rgba(201,242,77,.16);
  --orange:#FF6B3D;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(14,16,19,.06);
  --shadow-2:0 14px 34px -14px rgba(14,16,19,.22);
  --ease:cubic-bezier(.22,.7,.28,1);
  --t-fast:200ms;
  --t-mid:320ms;
  --t-slow:480ms;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","DIN Alternate","Helvetica Neue",Arial,sans-serif;
}

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

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

body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--t-fast) var(--ease),opacity var(--t-fast) var(--ease);}
a:hover{color:var(--ink);}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.2;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}

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

.container-xl{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  height:76px;
  display:flex;
  align-items:center;
  background:rgba(246,246,242,.86);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid rgba(227,227,220,.9);
  transition:height var(--t-fast) var(--ease),background var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease);
}
.site-header.is-scrolled{
  height:62px;
  background:rgba(246,246,242,.96);
  box-shadow:0 8px 24px -18px rgba(14,16,19,.5);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  width:100%;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:9px;
  background:var(--lime);
  color:var(--ink);
  font-family:var(--font-num);
  font-weight:800;
  font-size:17px;
  letter-spacing:0;
}
.brand-text{
  font-size:19px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--text);
  white-space:nowrap;
}

.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:12px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  font-size:14.5px;
  font-weight:600;
  color:var(--muted);
  border-radius:8px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;bottom:6px;
  width:0;height:2px;
  background:var(--lime);
  border-radius:2px;
  transition:width var(--t-mid) var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{width:18px;}
.nav-link.active{color:var(--text);}
.nav-link.active::after{width:18px;}

.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:auto;
}
.search-wrap{
  display:flex;
  align-items:center;
  gap:8px;
}
.search-toggle{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:10px;
  color:var(--muted);
  background:transparent;
  transition:border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.search-toggle:hover{border-color:var(--lime);color:var(--ink);}
.search-field{
  width:0;
  height:40px;
  padding:0;
  border:1px solid transparent;
  border-radius:10px;
  background:#fff;
  font-size:14px;
  color:var(--text);
  opacity:0;
  transition:width var(--t-mid) var(--ease),opacity var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.search-wrap.is-open .search-field{
  width:200px;
  padding:0 12px;
  opacity:1;
  border-color:var(--line);
}
.search-field:focus{
  outline:none;
  border-color:var(--lime);
  box-shadow:0 0 0 4px var(--lime-soft);
}
.search-field::placeholder{color:var(--muted-2);}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 20px;
  border-radius:var(--radius-sm);
  font-size:14.5px;
  font-weight:700;
  letter-spacing:.01em;
  border:1px solid transparent;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease);
}
.btn .arrow{transition:transform var(--t-mid) var(--ease);}
.btn:hover .arrow{transform:translateX(4px);}
.btn:active{transform:translateY(1px);}

.btn-primary{
  background:var(--lime);
  color:var(--ink);
  border-color:var(--lime);
}
.btn-primary:hover{
  background:var(--ink);
  color:var(--lime);
  border-color:var(--ink);
}
.btn-ghost{
  background:transparent;
  color:var(--text);
  border-color:var(--line);
}
.btn-ghost:hover{
  background:var(--ink);
  color:var(--paper);
  border-color:var(--ink);
}
.btn-outline-dark{
  background:transparent;
  color:var(--ink);
  border-color:var(--ink);
}
.btn-outline-dark:hover{
  background:var(--ink);
  color:var(--lime);
}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}

.nav-cta{min-height:40px;padding:0 18px;font-size:14px;}

.hamburger{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:10px;
}
.hamburger span{
  display:block;
  width:18px;height:2px;
  background:var(--ink);
  border-radius:2px;
  position:relative;
}
.hamburger span::before,
.hamburger span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;height:2px;
  background:var(--ink);
  border-radius:2px;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:1200;
  background:var(--ink);
  color:var(--paper);
  display:flex;
  flex-direction:column;
  padding:24px;
  transform:translateY(-100%);
  opacity:0;
  visibility:hidden;
  transition:transform var(--t-mid) var(--ease),opacity var(--t-mid) var(--ease),visibility var(--t-mid);
}
.mobile-drawer.is-open{
  transform:translateY(0);
  opacity:1;
  visibility:visible;
}
.drawer-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:40px;
}
.drawer-close{
  width:44px;height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid rgba(255,255,255,.24);
  border-radius:10px;
  color:var(--paper);
  font-size:22px;
  line-height:1;
}
.drawer-close:hover{border-color:var(--lime);color:var(--lime);}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  font-size:24px;
  font-weight:800;
  padding:14px 0;
  border-bottom:1px solid rgba(255,255,255,.1);
  color:var(--paper);
}
.drawer-nav a:hover{color:var(--lime);}
.drawer-nav a.active{color:var(--lime);}
.drawer-bottom{margin-top:auto;padding-top:32px;}
.drawer-bottom .btn{width:100%;min-height:52px;font-size:16px;}

/* ---------- 页头带 ---------- */
.page-head{
  position:relative;
  padding-top:140px;
  padding-bottom:52px;
  background:
    linear-gradient(180deg,rgba(239,239,232,.95) 0%,rgba(246,246,242,.98) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-head::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(to right,rgba(14,16,19,.045) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(14,16,19,.045) 1px,transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
}
.page-head .container-xl{position:relative;z-index:1;}

.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:22px;
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--ink);}
.crumbs .sep{color:var(--muted-2);}
.crumbs .current{color:var(--text);font-weight:700;}

.page-head h1{
  font-size:clamp(30px,3.6vw,46px);
  font-weight:900;
  line-height:1.14;
  letter-spacing:-.02em;
  max-width:820px;
}
.page-head h1 .h1-brand{
  display:block;
  font-size:14px;
  font-weight:700;
  letter-spacing:.18em;
  color:var(--muted);
  margin-bottom:14px;
  line-height:1.4;
}
.page-head .lead{
  margin-top:18px;
  max-width:660px;
  font-size:17px;
  line-height:1.8;
  color:var(--muted);
}
.head-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:26px;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.04em;
  font-weight:600;
  background:var(--sand);
  color:var(--ink-2);
  border:1px solid var(--line);
}
.tag-lime{
  background:var(--lime-soft);
  color:#4a5a10;
  border-color:rgba(201,242,77,.5);
}

/* ---------- 双栏主体 ---------- */
.page-body{padding:64px 0 88px;}
.layout{
  display:grid;
  grid-template-columns:240px minmax(0,1fr);
  gap:56px;
  align-items:start;
}

.toc{
  position:sticky;
  top:96px;
  border-left:1px solid var(--line);
  padding-left:0;
}
.toc-title{
  font-size:12px;
  letter-spacing:.18em;
  color:var(--muted-2);
  font-weight:700;
  padding:0 0 14px 16px;
}
.toc a{
  display:block;
  padding:10px 0 10px 16px;
  margin-left:-1px;
  border-left:2px solid transparent;
  font-size:14.5px;
  font-weight:600;
  color:var(--muted);
  line-height:1.5;
  transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease);
}
.toc a:hover{color:var(--text);}
.toc a.active{
  color:var(--ink);
  font-weight:800;
  border-left-color:var(--lime);
  background:linear-gradient(90deg,rgba(201,242,77,.14),transparent 70%);
}
.toc-foot{
  margin-top:20px;
  padding-left:16px;
  font-size:12.5px;
  color:var(--muted-2);
  line-height:1.7;
}

.sec{
  padding-bottom:56px;
  margin-bottom:56px;
  border-bottom:1px solid var(--line);
  scroll-margin-top:96px;
}
.sec:last-of-type{border-bottom:0;margin-bottom:0;padding-bottom:24px;}
.sec-kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-num);
  font-size:12px;
  font-weight:800;
  letter-spacing:.18em;
  color:var(--muted);
  margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.sec-kicker::before{
  content:"";
  width:22px;height:2px;
  background:var(--lime);
  border-radius:2px;
}
.sec h2{
  font-size:clamp(23px,2.4vw,30px);
  font-weight:800;
  letter-spacing:-.015em;
  margin-bottom:16px;
}
.sec p.desc{
  font-size:16px;
  color:var(--muted);
  line-height:1.85;
  max-width:660px;
  margin-bottom:26px;
}

/* 登录方式列表 */
.way-list{
  display:flex;
  flex-direction:column;
  gap:0;
  border-top:1px solid var(--line);
}
.way-item{
  display:grid;
  grid-template-columns:56px minmax(0,1fr) auto;
  gap:20px;
  align-items:start;
  padding:22px 0;
  border-bottom:1px solid var(--line);
  transition:background var(--t-fast) var(--ease);
}
.way-item:hover{background:rgba(239,239,232,.5);}
.way-num{
  font-family:var(--font-num);
  font-size:26px;
  font-weight:800;
  color:transparent;
  -webkit-text-stroke:1.4px #C3C6BE;
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.way-body h3{
  font-size:18px;
  font-weight:800;
  margin-bottom:8px;
}
.way-body p{
  font-size:14.5px;
  color:var(--muted);
  line-height:1.8;
  max-width:520px;
}
.way-meta{
  font-size:12.5px;
  color:var(--muted-2);
  font-family:var(--font-num);
  white-space:nowrap;
  padding-top:4px;
}

/* 步骤 */
.steps{
  display:flex;
  flex-direction:column;
  gap:0;
  counter-reset:step;
}
.step{
  position:relative;
  display:grid;
  grid-template-columns:44px minmax(0,1fr);
  gap:18px;
  padding:0 0 26px 0;
}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";
  position:absolute;
  left:21px;
  top:44px;
  bottom:6px;
  width:1px;
  background:linear-gradient(180deg,var(--line),rgba(227,227,220,.2));
}
.step:last-child::before{display:none;}
.step-num{
  width:44px;height:44px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--paper);
  border:1px solid var(--line);
  font-family:var(--font-num);
  font-size:15px;
  font-weight:800;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
  transition:border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease);
}
.step:hover .step-num{border-color:var(--lime);background:var(--lime-soft);}
.step-body h3{
  font-size:17px;
  font-weight:800;
  margin-bottom:8px;
  padding-top:9px;
}
.step-body p{
  font-size:14.5px;
  color:var(--muted);
  line-height:1.8;
}
.step-body .mini-note{
  display:inline-block;
  margin-top:10px;
  font-size:12.5px;
  color:var(--ink-2);
  background:var(--sand);
  border-radius:999px;
  padding:4px 12px;
}

/* 手风琴 */
.accordion-list{
  border-top:1px solid var(--line);
}
.acc-item{
  border-bottom:1px solid var(--line);
}
.acc-head{
  width:100%;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:18px;
  padding:20px 0 20px 14px;
  text-align:left;
  font-size:16.5px;
  font-weight:700;
  color:var(--text);
  border-left:3px solid transparent;
  transition:border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease),background var(--t-fast) var(--ease);
}
.acc-head:hover{color:var(--ink);background:rgba(239,239,232,.45);}
.acc-icon{
  flex-shrink:0;
  width:26px;height:26px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:50%;
  font-family:var(--font-num);
  font-size:16px;
  font-weight:700;
  color:var(--muted);
  line-height:1;
  transition:transform var(--t-mid) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.acc-item.open .acc-head{
  border-left-color:var(--lime);
  color:var(--ink);
}
.acc-item.open .acc-icon{
  border-color:var(--lime);
  color:var(--ink);
  transform:rotate(180deg);
}
.acc-body{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows var(--t-mid) var(--ease);
}
.acc-item.open .acc-body{grid-template-rows:1fr;}
.acc-body-inner{overflow:hidden;}
.acc-body p{
  padding:0 40px 22px 14px;
  font-size:14.8px;
  line-height:1.85;
  color:var(--muted);
}

/* key-value 参数卡 */
.kv-card{
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:#fff;
  padding:8px 24px;
  box-shadow:var(--shadow-1);
  transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease);
}
.kv-card:hover{border-color:rgba(201,242,77,.85);box-shadow:var(--shadow-2);}
.kv-row{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:20px;
  padding:15px 0;
  border-bottom:1px solid var(--line);
}
.kv-row:last-child{border-bottom:0;}
.kv-key{
  font-size:14px;
  color:var(--muted);
  flex-shrink:0;
}
.kv-val{
  font-size:15px;
  font-weight:700;
  color:var(--text);
  text-align:right;
  font-variant-numeric:tabular-nums;
}
.kv-val .code{
  font-family:var(--font-num);
  letter-spacing:.04em;
  color:var(--ink);
}

/* 图文块 */
.figure-block{
  margin-top:26px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:#fff;
  box-shadow:var(--shadow-1);
}
.figure-frame{
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--sand);
}
.figure-frame img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform var(--t-slow) var(--ease);
}
.figure-block:hover .figure-frame img{transform:scale(1.03);}
.figure-cap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 20px;
  font-size:13px;
  color:var(--muted);
  border-top:1px solid var(--line);
}
.figure-cap strong{color:var(--text);font-weight:700;}

/* 联系卡 */
.contact-card{
  position:relative;
  margin-top:8px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:#fff;
  padding:32px;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:28px;
  align-items:center;
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease);
}
.contact-card:hover{border-color:rgba(201,242,77,.9);box-shadow:var(--shadow-2);}
.contact-card h3{font-size:20px;font-weight:800;margin-bottom:10px;}
.contact-card p{font-size:14.8px;color:var(--muted);line-height:1.8;max-width:520px;}
.contact-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;}
.contact-icon{
  width:96px;height:96px;
  border-radius:50%;
  border:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--ink);
  background:radial-gradient(circle at 30% 30%,rgba(201,242,77,.35),transparent 70%);
}
.contact-icon svg{width:42px;height:42px;stroke:currentColor;stroke-width:1.5;fill:none;}

/* CTA 条 */
.cta-band{
  margin-top:72px;
  background:var(--ink);
  border-radius:20px;
  padding:48px;
  color:var(--paper);
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:32px;
  align-items:center;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;top:-80px;
  width:280px;height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,77,.18),transparent 65%);
  pointer-events:none;
}
.cta-band h2{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:800;
  color:var(--paper);
  margin-bottom:12px;
}
.cta-band p{
  font-size:15px;
  color:rgba(242,242,238,.72);
  max-width:560px;
  line-height:1.8;
}
.cta-band .btn-group{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1;}
.cta-band .btn-ghost{
  color:var(--paper);
  border-color:rgba(255,255,255,.3);
}
.cta-band .btn-ghost:hover{
  background:var(--paper);
  color:var(--ink);
  border-color:var(--paper);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(242,242,238,.78);
  padding:72px 0 28px;
  margin-top:88px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand .brand-text{color:var(--paper);}
.footer-brand .brand-mark{background:var(--lime);color:var(--ink);}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  color:rgba(242,242,238,.62);
  max-width:320px;
}
.footer-qr{margin-top:22px;}
.footer-qr img{
  width:112px;height:112px;
  border-radius:var(--radius-md);
  border:1px solid rgba(255,255,255,.16);
  object-fit:cover;
}
.footer-col h4{
  font-size:13px;
  letter-spacing:.18em;
  color:rgba(242,242,238,.5);
  font-weight:700;
  margin-bottom:18px;
}
.footer-col a,
.footer-col span{
  display:block;
  font-size:14px;
  line-height:2.2;
  color:rgba(242,242,238,.78);
}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding-top:24px;
  font-size:13px;
  color:rgba(242,242,238,.45);
}

/* 入场动效 */
.reveal{
  opacity:0;
  transform:translateY(14px);
  transition:opacity var(--t-slow) var(--ease),transform var(--t-slow) var(--ease);
}
.reveal.is-visible{opacity:1;transform:translateY(0);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .layout{grid-template-columns:210px minmax(0,1fr);gap:40px;}
}

@media (max-width:991.98px){
  .nav-links{display:none;}
  .header-actions .search-toggle{display:none;}
  .header-actions .nav-cta{display:none;}
  .hamburger{display:inline-flex;}
  .page-head{padding-top:118px;padding-bottom:42px;}
  .page-body{padding:44px 0 64px;}
  .layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .toc{
    position:sticky;
    top:62px;
    z-index:20;
    display:flex;
    gap:8px;
    overflow-x:auto;
    border-left:0;
    border-bottom:1px solid var(--line);
    background:rgba(246,246,242,.96);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    padding:8px 0 10px;
    scrollbar-width:none;
    -ms-overflow-style:none;
  }
  .toc::-webkit-scrollbar{display:none;}
  .toc-title,.toc-foot{display:none;}
  .toc a{
    flex:0 0 auto;
    margin-left:0;
    padding:8px 14px;
    border-left:0;
    border-radius:999px;
    border:1px solid var(--line);
    background:#fff;
    font-size:13.5px;
    white-space:nowrap;
  }
  .toc a.active{
    background:var(--lime-soft);
    border-color:rgba(201,242,77,.7);
    color:var(--ink);
  }
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:36px;}
  .contact-card{grid-template-columns:minmax(0,1fr);padding:26px;}
  .contact-icon{display:none;}
}

@media (max-width:767.98px){
  .container-xl{padding-left:18px;padding-right:18px;}
  .page-head h1{font-size:clamp(26px,7vw,34px);}
  .page-head .lead{font-size:15.5px;}
  .way-item{grid-template-columns:44px minmax(0,1fr);gap:14px;}
  .way-meta{grid-column:2;padding-top:6px;}
  .sec h2{font-size:22px;}
  .kv-card{padding:4px 16px;}
  .kv-row{flex-direction:column;align-items:flex-start;gap:4px;}
  .kv-val{text-align:left;}
  .acc-head{font-size:15.5px;padding:18px 0 18px 12px;}
  .acc-body p{padding:0 20px 20px 12px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .cta-band{padding:28px 22px;margin-top:48px;}
  .site-footer{margin-top:56px;padding-top:52px;}
}

@media (max-width:519.98px){
  .brand-text{font-size:17px;}
  .btn{width:100%;}
  .contact-actions{flex-direction:column;}
  .cta-band .btn-group{flex-direction:column;width:100%;}
  .head-tags .tag{font-size:11.5px;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none;}
}