/* roulang page: index */
:root{
  --c-primary:#FF4D2E;
  --c-primary-soft:rgba(255,77,46,.10);
  --c-accent:#12D9C3;
  --c-accent-soft:rgba(18,217,195,.12);
  --c-accent-2:#FFC53D;
  --bg-deep:#0A0B0E;
  --bg-deep-2:#15171D;
  --bg-cream:#FAF8F5;
  --bg-card:#FFFFFF;
  --ink:#1A1C22;
  --ink-2:#6B7076;
  --line:#EAE6E0;
  --line-dark:rgba(255,255,255,.08);
  --ink-dark-2:rgba(255,255,255,.72);
  --ok:#12B886;
  --warn:#F59E0B;
  --err:#E5484D;
  --empty:#9AA0A6;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(10,11,14,.06);
  --shadow-2:0 12px 32px -12px rgba(10,11,14,.18);
  --shadow-glow:0 0 0 1px rgba(255,77,46,.35),0 0 24px -6px rgba(255,77,46,.45);
  --space-1:8px;
  --space-2:12px;
  --space-3:16px;
  --space-4:24px;
  --space-5:32px;
  --space-6:48px;
  --space-7:64px;
  --space-8:96px;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg-cream);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .16s ease,opacity .16s ease;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,textarea{font:inherit;color:inherit;}
strong{font-weight:800;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ============ 导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  background:var(--bg-deep);
  border-bottom:1px solid transparent;
  transition:background .2s ease,backdrop-filter .2s ease,border-color .2s ease;
}
.site-header.scrolled{
  background:rgba(10,11,14,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  background-image:linear-gradient(rgba(10,11,14,.82),rgba(10,11,14,.82)),linear-gradient(90deg,var(--c-primary),var(--c-accent));
  background-origin:border-box;
  background-clip:padding-box,border-box;
}
.nav-wrap{
  height:68px;
  display:flex;
  align-items:center;
  gap:var(--space-4);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:8px;height:22px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
  box-shadow:0 0 14px -2px rgba(255,77,46,.8);
}
.brand-text{
  font-size:17px;
  font-weight:800;
  letter-spacing:.01em;
  color:#fff;
  white-space:nowrap;
}
.main-nav{margin-left:auto;}
.main-nav ul{display:flex;align-items:center;gap:22px;}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:14px;
  color:var(--ink-dark-2);
  white-space:nowrap;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  transition:width .22s ease;
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{width:100%;}
.main-nav a.active{
  color:#fff;
  text-shadow:0 0 12px rgba(255,77,46,.5);
}
.main-nav a.active::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line-dark);
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:rgba(255,255,255,.85);
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  transition:transform .16s ease,box-shadow .16s ease,background .16s ease,color .16s ease,border-color .16s ease;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-primary{
  background:var(--c-primary);
  color:#fff;
  box-shadow:0 8px 20px -12px rgba(255,77,46,.8);
}
.btn-primary:hover{
  filter:brightness(1.08);
  transform:translateY(-1px);
  box-shadow:0 8px 20px -8px rgba(255,77,46,.6);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;
  color:#fff;
  border:1px solid rgba(255,255,255,.24);
}
.btn-ghost:hover{border-color:rgba(255,255,255,.5);transform:translateY(-1px);}
.btn-outline{
  background:transparent;
  color:var(--ink);
  border:1px solid rgba(10,11,14,.16);
}
.btn-outline:hover{border-color:rgba(10,11,14,.4);transform:translateY(-1px);}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
}
.link-arrow svg{transition:transform .16s ease;}
.link-arrow:hover svg{transform:translateX(4px);}

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  background:var(--bg-deep);
  padding:132px 0 84px;
  color:#fff;
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:3px 3px;
  opacity:.55;
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:linear-gradient(90deg,rgba(255,77,46,0),var(--c-primary) 25%,var(--c-accent) 75%,rgba(18,217,195,0));
  opacity:.85;
}
.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  margin-bottom:22px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(255,77,46,.35);
  background:rgba(255,77,46,.10);
  font-size:13px;
  color:#FFB7A6;
  letter-spacing:.02em;
}
.hero-eyebrow i{
  width:6px;height:6px;border-radius:50%;
  background:var(--c-accent);
  box-shadow:0 0 10px var(--c-accent);
  display:inline-block;
}
.hero h1{
  font-size:clamp(38px,5vw,64px);
  line-height:1.08;
  letter-spacing:-.02em;
  font-weight:800;
  margin-bottom:22px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(92deg,var(--c-primary),var(--c-accent-2));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  max-width:36em;
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.66);
  margin-bottom:30px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px 28px;
}
.hero-points li{
  display:flex;
  align-items:center;
  gap:9px;
  font-size:14px;
  color:rgba(255,255,255,.62);
}
.hero-points li::before{
  content:"";
  width:5px;height:5px;
  border-radius:50%;
  background:var(--c-accent);
  box-shadow:0 0 8px var(--c-accent);
  flex-shrink:0;
}
.hero-media{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line-dark);
  background:var(--bg-deep-2);
  aspect-ratio:16/11;
}
.hero-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;
}
.hero-media:hover img{transform:scale(1.03);}
.hero-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,11,14,.05),rgba(10,11,14,.55));
  pointer-events:none;
}
.hero-badge{
  position:absolute;
  right:18px;bottom:18px;
  z-index:2;
  display:flex;
  flex-direction:column;
  gap:2px;
  padding:12px 18px;
  border-radius:var(--radius-img);
  background:rgba(10,11,14,.72);
  border:1px solid rgba(255,77,46,.5);
  box-shadow:0 0 24px -6px rgba(255,77,46,.55);
  backdrop-filter:blur(6px);
}
.hero-badge strong{
  font-size:24px;
  line-height:1.2;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
}
.hero-badge span{font-size:12px;color:rgba(255,255,255,.7);}

/* ============ 指标条 ============ */
.metrics{
  background:var(--bg-deep-2);
  border-bottom:1px solid var(--line-dark);
  padding:36px 0;
}
.metrics-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:var(--space-4);
}
.metric{text-align:left;padding-left:18px;border-left:1px solid var(--line-dark);}
.metric strong{
  display:block;
  font-size:32px;
  font-weight:800;
  line-height:1.2;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
  margin-bottom:4px;
}
.metric span{font-size:13px;color:rgba(255,255,255,.55);}

/* ============ 通用板块 ============ */
.section{padding:var(--space-8) 0;}
.section-cream{background:var(--bg-cream);}
.section-white{background:#fff;}
.section-dark{background:var(--bg-deep);color:#fff;}
.section-head{
  display:flex;
  align-items:flex-start;
  gap:16px;
  margin-bottom:48px;
}
.section-head .sn{
  font-size:14px;
  font-weight:800;
  letter-spacing:.08em;
  color:var(--c-primary);
  padding-top:10px;
  font-variant-numeric:tabular-nums;
}
.section-head .bar{
  width:6px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
  align-self:stretch;
  min-height:42px;
  flex-shrink:0;
}
.section-head h2{
  font-size:clamp(26px,3vw,38px);
  font-weight:800;
  line-height:1.25;
  letter-spacing:-.01em;
}
.section-head p{
  margin-top:10px;
  max-width:72ch;
  font-size:15px;
  color:var(--ink-2);
}
.section-dark .section-head p{color:rgba(255,255,255,.6);}
.section-dark .section-head h2{color:#fff;}

/* ============ 价值主张 ============ */
.value-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.value-row + .value-row{margin-top:72px;}
.value-row.flip .value-media{order:2;}
.value-media{
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:#fff;
  box-shadow:var(--shadow-2);
}
.value-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .5s ease;}
.value-media:hover img{transform:scale(1.03);}
.value-copy h3{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:800;
  line-height:1.3;
  margin-bottom:14px;
}
.value-copy > p{
  font-size:16px;
  color:var(--ink-2);
  max-width:72ch;
  margin-bottom:26px;
}
.arglist li{
  display:flex;
  gap:14px;
  padding:16px 0;
  border-top:1px solid var(--line);
}
.arglist li:last-child{border-bottom:1px solid var(--line);}
.arglist .idx{
  flex-shrink:0;
  width:34px;height:34px;
  border-radius:var(--radius-btn);
  display:grid;place-items:center;
  font-size:13px;
  font-weight:800;
  color:var(--c-primary);
  background:var(--c-primary-soft);
  font-variant-numeric:tabular-nums;
}
.arglist h4{font-size:16px;font-weight:700;margin-bottom:3px;}
.arglist p{font-size:14px;color:var(--ink-2);line-height:1.7;}

/* ============ 功能分组 ============ */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:var(--space-4);
}
.feature-card{
  position:relative;
  padding:32px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease;
}
.feature-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  opacity:0;
  transition:opacity .18s ease;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.feature-card:hover::before{opacity:1;}
.feature-icon{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:var(--radius-btn);
  background:var(--c-primary-soft);
  color:var(--c-primary);
  margin-bottom:18px;
}
.feature-card:nth-child(2) .feature-icon{background:var(--c-accent-soft);color:#0FA99A;}
.feature-card:nth-child(4) .feature-icon{background:var(--c-accent-soft);color:#0FA99A;}
.feature-card h3{font-size:20px;font-weight:700;margin-bottom:10px;}
.feature-card p{font-size:15px;color:var(--ink-2);margin-bottom:16px;}
.feature-card ul{margin-bottom:18px;}
.feature-card ul li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:var(--ink-2);
  line-height:1.8;
}
.feature-card ul li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--c-accent);
}

/* ============ 使用场景 ============ */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:var(--space-4);
}
.scene-card{
  position:relative;
  padding:28px;
  border-radius:var(--radius-card);
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.scene-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
  border-color:rgba(255,77,46,.35);
}
.scene-card:nth-child(even){margin-top:28px;}
.scene-card .tag{margin-bottom:14px;}
.scene-card h3{font-size:19px;font-weight:700;margin-bottom:10px;}
.scene-card .who{font-size:13px;color:var(--ink-2);margin-bottom:12px;}
.scene-card .result{
  font-size:15px;
  color:var(--ink);
  padding-top:12px;
  border-top:1px dashed var(--line);
}
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  font-size:12px;
  font-weight:600;
  background:var(--c-primary-soft);
  color:var(--c-primary);
}
.tag-cat{background:var(--c-accent-soft);color:#0FA99A;}

/* ============ 成功案例 ============ */
.case-main{
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:0;
  border-radius:var(--radius-card);
  overflow:hidden;
  background:var(--bg-deep-2);
  border:1px solid var(--line-dark);
  color:#fff;
}
.case-main .case-media{position:relative;min-height:300px;}
.case-main .case-media img{width:100%;height:100%;object-fit:cover;}
.case-main .case-body{padding:40px;display:flex;flex-direction:column;justify-content:center;}
.case-body h3{font-size:24px;font-weight:800;margin-bottom:14px;}
.case-body p{font-size:15px;color:rgba(255,255,255,.66);margin-bottom:26px;}
.case-stats{display:flex;gap:36px;margin-bottom:26px;}
.case-stats div strong{
  display:block;
  font-size:30px;
  font-weight:800;
  color:var(--c-accent);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.case-stats div span{font-size:13px;color:rgba(255,255,255,.55);}
.case-strips{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:var(--space-4);
  margin-top:var(--space-4);
}
.case-strip{
  display:flex;
  gap:18px;
  align-items:center;
  padding:22px;
  border-radius:var(--radius-card);
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease;
}
.case-strip:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.case-strip .mini{
  width:78px;height:78px;
  border-radius:var(--radius-img);
  overflow:hidden;
  flex-shrink:0;
}
.case-strip .mini img{width:100%;height:100%;object-fit:cover;}
.case-strip h4{font-size:16px;font-weight:700;margin-bottom:6px;}
.case-strip p{font-size:14px;color:var(--ink-2);line-height:1.7;}

/* ============ 价格 ============ */
.price-switch{
  display:inline-flex;
  padding:4px;
  border-radius:var(--radius-pill);
  background:#fff;
  border:1px solid var(--line);
  margin-bottom:40px;
}
.price-switch button{
  height:36px;
  padding:0 20px;
  border-radius:var(--radius-pill);
  font-size:14px;
  font-weight:600;
  color:var(--ink-2);
  transition:background .16s ease,color .16s ease;
}
.price-switch button.on{background:var(--c-primary);color:#fff;}
.price-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:var(--space-4);
  align-items:stretch;
}
.price-card{
  display:flex;
  flex-direction:column;
  padding:32px;
  border-radius:var(--radius-card);
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease;
}
.price-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.price-card.featured{
  background:var(--bg-deep-2);
  border:1px solid rgba(255,77,46,.55);
  color:#fff;
  box-shadow:0 0 0 1px rgba(255,77,46,.2),0 24px 48px -24px rgba(255,77,46,.5);
}
.price-card .pc-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;}
.price-card h3{font-size:19px;font-weight:700;}
.badge-rec{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 11px;
  border-radius:var(--radius-pill);
  font-size:12px;
  font-weight:700;
  background:var(--c-primary);
  color:#fff;
}
.price-amount{
  display:flex;
  align-items:baseline;
  gap:6px;
  margin:16px 0 6px;
  font-variant-numeric:tabular-nums;
}
.price-amount strong{font-size:40px;font-weight:800;line-height:1;letter-spacing:-.02em;}
.price-amount .unit{font-size:14px;color:var(--ink-2);}
.price-card.featured .price-amount .unit{color:rgba(255,255,255,.6);}
.price-note{font-size:13px;color:var(--ink-2);margin-bottom:24px;}
.price-card.featured .price-note{color:rgba(255,255,255,.55);}
.price-list{margin-bottom:28px;flex-grow:1;}
.price-list li{
  position:relative;
  padding-left:24px;
  font-size:14.5px;
  line-height:1.9;
  color:var(--ink-2);
}
.price-card.featured .price-list li{color:rgba(255,255,255,.72);}
.price-list li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:14px;height:14px;
  border-radius:50%;
  background:var(--c-accent-soft);
}
.price-list li::after{
  content:"";
  position:absolute;
  left:4.5px;top:13px;
  width:5px;height:5px;
  border-radius:50%;
  background:var(--c-accent);
}
.price-card.featured .btn-outline{color:#fff;border-color:rgba(255,255,255,.24);}
.price-card.featured .btn-outline:hover{border-color:rgba(255,255,255,.5);}

/* ============ 最新信息 ============ */
.news-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
}
.news-head .section-head{margin-bottom:0;}
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:var(--space-4);
}
.news-card{
  display:flex;
  flex-direction:column;
  padding:26px;
  border-radius:var(--radius-card);
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.news-card .tag{margin-bottom:14px;align-self:flex-start;}
.news-card h3{
  font-size:17px;
  font-weight:700;
  line-height:1.55;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card p{
  font-size:14px;
  color:var(--ink-2);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:18px;
  flex-grow:1;
}
.news-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--ink-2);
}
.news-meta .more{color:var(--c-primary);font-weight:600;}
.empty-state{
  text-align:center;
  padding:56px 24px;
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  background:var(--bg-cream);
}
.empty-state svg{margin:0 auto 14px;color:var(--empty);}
.empty-state p{font-size:16px;font-weight:600;margin-bottom:6px;}
.empty-state span{display:block;font-size:14px;color:var(--ink-2);margin-bottom:18px;}

/* ============ FAQ ============ */
.faq-list{max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 0;
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .chev{
  flex-shrink:0;
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--c-primary);
  transition:transform .2s ease,background .2s ease;
}
.faq-item[open] summary .chev{
  transform:rotate(180deg);
  background:var(--c-primary-soft);
  border-color:rgba(255,77,46,.35);
}
.faq-item .faq-body{
  padding:0 0 24px;
  max-width:72ch;
  font-size:15px;
  color:var(--ink-2);
  line-height:1.85;
}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--bg-deep);
  color:#fff;
  padding:72px 0;
}
.cta-band::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:2px;
  background:linear-gradient(90deg,rgba(255,77,46,0),var(--c-primary),var(--c-accent),rgba(18,217,195,0));
}
.cta-inner{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:48px;
  align-items:center;
}
.cta-inner h2{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.3;margin-bottom:12px;}
.cta-inner p{font-size:15px;color:rgba(255,255,255,.62);max-width:52ch;}
.cta-form{
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-dark);
  border-radius:var(--radius-card);
  padding:26px;
}
.cta-form label{display:block;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:8px;}
.cta-form input{
  width:100%;
  height:48px;
  padding:0 14px;
  border-radius:var(--radius-btn);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.16);
  color:#fff;
  font-size:15px;
  margin-bottom:14px;
  transition:border-color .16s ease,box-shadow .16s ease;
}
.cta-form input::placeholder{color:rgba(255,255,255,.35);}
.cta-form input:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(255,77,46,.18);
}
.cta-form input.error{border-color:var(--err);}
.cta-form .hint{font-size:13px;color:rgba(255,255,255,.45);margin-top:12px;}
.cta-form .err-msg{display:none;font-size:13px;color:#FF8A7A;margin:-8px 0 12px;}
.cta-form .err-msg.show{display:block;}
.cta-form .btn{width:100%;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-deep);
  color:rgba(255,255,255,.65);
  border-top:1px solid var(--line-dark);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand .brand-text{font-size:16px;}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin-bottom:18px;
}
.footer-col p{font-size:14px;line-height:1.85;max-width:34ch;}
.footer-col li{margin-bottom:10px;}
.footer-col a{
  font-size:14px;
  color:rgba(255,255,255,.65);
  display:inline-block;
  transition:color .16s ease,transform .16s ease;
}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid var(--line-dark);
  padding:20px 0;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  justify-content:space-between;
  font-size:12px;
  color:rgba(255,255,255,.42);
}
.to-top{
  position:fixed;
  right:24px;bottom:24px;
  z-index:90;
  width:46px;height:46px;
  display:grid;place-items:center;
  border-radius:50%;
  background:var(--bg-deep-2);
  border:1px solid rgba(255,77,46,.5);
  color:#fff;
  box-shadow:0 0 24px -6px rgba(255,77,46,.5);
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .45s ease-out,transform .45s ease-out;}
.reveal.in{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
  .hero-media:hover img,.value-media:hover img{transform:none;}
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .main-nav ul{gap:16px;}
  .main-nav a{font-size:13.5px;}
  .nav-actions .btn{display:none;}
  .hero-grid{gap:40px;}
}
@media (max-width:1024px){
  .section{padding:72px 0;}
  .hero{padding:118px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media{order:2;aspect-ratio:16/10;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:24px 20px;}
  .value-row{grid-template-columns:1fr;gap:32px;}
  .value-row.flip .value-media{order:0;}
  .value-row + .value-row{margin-top:56px;}
  .feature-grid{grid-template-columns:1fr;}
  .price-grid{grid-template-columns:1fr;max-width:520px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .cta-inner{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .nav-toggle{display:flex;margin-left:auto;}
  .main-nav{
    position:absolute;
    top:68px;left:0;right:0;
    background:var(--bg-deep-2);
    border-bottom:1px solid var(--line-dark);
    max-height:0;
    overflow:hidden;
    transition:max-height .25s ease;
  }
  .main-nav.open{max-height:480px;overflow-y:auto;}
  .main-nav ul{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px 0;
  }
  .main-nav li{border-bottom:1px solid var(--line-dark);}
  .main-nav li:last-child{border-bottom:0;}
  .main-nav a{
    display:block;
    padding:15px 24px;
    font-size:15px;
    border-left:3px solid transparent;
  }
  .main-nav a::after{display:none;}
  .main-nav a.active{
    border-left-color:var(--c-primary);
    background:rgba(255,77,46,.08);
    text-shadow:none;
  }
  .nav-actions{margin-left:0;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .hero{padding:104px 0 52px;}
  .hero h1{font-size:clamp(30px,8vw,42px);}
  .hero-sub{font-size:15.5px;}
  .hero-cta .btn{flex:1 1 auto;min-width:150px;}
  .scene-grid{grid-template-columns:1fr;}
  .scene-card:nth-child(even){margin-top:0;}
  .case-main{grid-template-columns:1fr;}
  .case-main .case-media{min-height:220px;}
  .case-main .case-body{padding:28px;}
  .case-strips{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .news-head{flex-direction:column;align-items:flex-start;gap:16px;}
  .footer-grid{grid-template-columns:1fr;}
  .section-head{gap:12px;margin-bottom:34px;}
  .metric strong{font-size:26px;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  .brand-text{font-size:15px;}
  .hero{padding:96px 0 46px;}
  .hero-badge{padding:10px 14px;right:12px;bottom:12px;}
  .hero-badge strong{font-size:20px;}
  .feature-card,.scene-card,.price-card,.news-card{padding:22px;}
  .price-amount strong{font-size:34px;}
  .case-stats{gap:22px;}
  .case-stats div strong{font-size:24px;}
  .to-top{right:16px;bottom:16px;}
  .cta-band{padding:52px 0;}
}

/* roulang page: article */
:root{
  --c-primary:#FF4D2E;
  --c-primary-soft:rgba(255,77,46,.10);
  --c-primary-line:rgba(255,77,46,.35);
  --c-accent:#12D9C3;
  --c-accent-soft:rgba(18,217,195,.12);
  --c-accent-2:#FFC53D;
  --bg-deep:#0A0B0E;
  --bg-deep-2:#15171D;
  --bg-cream:#FAF8F5;
  --card:#FFFFFF;
  --ink:#1A1C22;
  --ink-2:#6B7076;
  --ink-3:#9AA0A6;
  --line:#EAE6E0;
  --line-deep:rgba(255,255,255,.08);
  --ok:#12B886;
  --warn:#F59E0B;
  --err:#E5484D;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(10,11,14,.06);
  --shadow-2:0 12px 32px -12px rgba(10,11,14,.18);
  --shadow-glow:0 0 0 1px rgba(255,77,46,.35),0 0 24px -6px rgba(255,77,46,.45);
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:48px; --sp-6:72px; --sp-7:96px;
  --container:1240px;
  --font:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,'Segoe UI',sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg-cream);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{line-height:1.25;font-weight:800;letter-spacing:-0.01em;}
::selection{background:rgba(255,77,46,.22);}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:0;
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),background-color .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px -10px rgba(255,77,46,.9);}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 8px 20px -8px rgba(255,77,46,.6);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border:1px solid rgba(10,11,14,.16);color:var(--ink);}
.btn-ghost:hover{border-color:rgba(10,11,14,.34);background:rgba(255,255,255,.7);transform:translateY(-1px);}
.btn-ghost-dark{background:transparent;border:1px solid rgba(255,255,255,.24);color:#fff;}
.btn-ghost-dark:hover{border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.06);transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-lg{height:50px;padding:0 28px;font-size:16px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:15px;}
.link-arrow svg{transition:transform .16s var(--ease);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--bg-deep);
  height:68px;
  transition:background-color .2s var(--ease),backdrop-filter .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,77,46,.75),rgba(18,217,195,.6),transparent);
  opacity:.55;transition:opacity .2s var(--ease);
}
.site-header.is-scrolled{background:rgba(10,11,14,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);}
.site-header.is-scrolled::after{opacity:1;}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:8px;height:8px;border-radius:2px;background:var(--c-primary);box-shadow:0 0 12px rgba(255,77,46,.85);flex:0 0 auto;}
.brand-text{font-size:17px;font-weight:800;color:#fff;letter-spacing:.01em;white-space:nowrap;}
.main-nav{margin-left:auto;}
.main-nav ul{display:flex;align-items:center;gap:4px;}
.main-nav a{
  position:relative;display:block;padding:10px 12px;font-size:14.5px;font-weight:500;
  color:rgba(255,255,255,.72);transition:color .16s var(--ease);
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
  border-radius:2px;
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:#fff;text-shadow:0 0 12px rgba(255,77,46,.5);}
.main-nav a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line-deep);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 页面头部 ---------- */
.page-head{
  background:linear-gradient(180deg,#FFFFFF 0%,var(--bg-cream) 100%);
  border-bottom:1px solid var(--line);
  padding:36px 0 44px;
}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--ink-3);min-height:22px;
}
.breadcrumb a{color:var(--ink-2);transition:color .16s var(--ease);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#C9C3BA;}
.breadcrumb .current{
  color:var(--ink-2);max-width:560px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.page-head .tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 0;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;letter-spacing:.01em;
}
.tag-cat{background:var(--c-accent-soft);color:#0E9E8F;}
.tag-hot{background:var(--c-primary-soft);color:var(--c-primary);}
.page-head h1{
  margin-top:18px;
  font-size:clamp(30px,3.6vw,46px);
  line-height:1.2;
  letter-spacing:-0.02em;
  font-weight:800;
  color:var(--ink);
  max-width:920px;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px 20px;
  margin-top:22px;min-height:26px;font-size:13.5px;color:var(--ink-2);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#CFC9C0;}
.meta-item{display:inline-flex;align-items:center;gap:7px;}
.meta-item svg{flex:0 0 auto;opacity:.75;}

/* ---------- 文章布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:232px minmax(0,1fr);gap:56px;
  padding-top:56px;padding-bottom:72px;align-items:start;
}
.article-toc{display:none;position:sticky;top:96px;}
.article-toc.is-ready{display:block;}
.toc-title{
  font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--ink-3);padding-left:12px;border-left:3px solid var(--c-primary);
  margin-bottom:16px;line-height:1.2;
}
.article-toc ul{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line);}
.article-toc a{
  display:block;padding:7px 0 7px 14px;font-size:13.5px;line-height:1.6;
  color:var(--ink-2);border-left:2px solid transparent;margin-left:-1px;
  transition:color .16s var(--ease),border-color .16s var(--ease),background-color .16s var(--ease);
}
.article-toc a:hover{color:var(--ink);border-left-color:rgba(255,77,46,.5);}
.article-toc a.is-active{color:var(--c-primary);border-left-color:var(--c-primary);font-weight:600;}
.article-main{max-width:72ch;min-width:0;}

/* ---------- 正文排版 ---------- */
.article-content{font-size:17px;line-height:1.85;color:var(--ink);}
.article-content > * + *{margin-top:1.2em;}
.article-content p{margin:0;color:#2A2D34;}
.article-content h2{
  position:relative;font-size:clamp(24px,2.3vw,30px);font-weight:800;letter-spacing:-0.01em;
  margin-top:2.6em;padding-left:16px;scroll-margin-top:96px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:6px;border-radius:3px;
  background:linear-gradient(180deg,var(--c-primary),#FF8A5B);
}
.article-content h3{font-size:21px;font-weight:700;margin-top:1.9em;scroll-margin-top:96px;}
.article-content h4{font-size:17px;font-weight:700;margin-top:1.6em;}
.article-content a{color:var(--c-primary);border-bottom:1px solid rgba(255,77,46,.3);transition:border-color .16s var(--ease);}
.article-content a:hover{border-bottom-color:var(--c-primary);}
.article-content strong{font-weight:700;color:#101216;}
.article-content ul,.article-content ol{padding-left:0;display:flex;flex-direction:column;gap:.55em;}
.article-content ul li,.article-content ol li{position:relative;padding-left:26px;}
.article-content ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:8px;height:8px;border-radius:2px;
  background:var(--c-primary);transform:rotate(45deg);
}
.article-content ol{counter-reset:artol;}
.article-content ol li{counter-increment:artol;}
.article-content ol li::before{
  content:counter(artol,decimal-leading-zero);
  position:absolute;left:0;top:0;font-size:13px;font-weight:800;line-height:2.1;
  color:var(--c-primary);font-variant-numeric:tabular-nums;
}
.article-content blockquote{
  margin:1.8em 0;padding:18px 24px;border-left:3px solid var(--c-primary);
  background:#FFF6F2;border-radius:0 var(--radius-img) var(--radius-img) 0;
  color:#3A3F47;font-size:16.5px;
}
.article-content blockquote p{margin:0;color:inherit;}
.article-content figure{margin:1.8em 0;}
.article-content img{border-radius:var(--radius-img);width:100%;transition:transform .5s var(--ease);}
.article-content figure:hover img{transform:scale(1.03);}
.article-content figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;line-height:1.7;}
.article-content pre{
  background:var(--bg-deep);color:#E8E6E3;border-radius:var(--radius-img);
  padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.75;
  font-family:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  border:1px solid rgba(255,255,255,.06);
}
.article-content code{
  font-family:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.9em;background:rgba(18,217,195,.12);color:#0E9E8F;
  padding:2px 6px;border-radius:6px;
}
.article-content pre code{background:none;color:inherit;padding:0;}
.article-content table{
  width:100%;border-collapse:collapse;font-size:15px;border-radius:var(--radius-img);
  overflow:hidden;box-shadow:var(--shadow-1);display:block;overflow-x:auto;
}
.article-content thead th{
  background:var(--bg-deep-2);color:#fff;font-weight:600;text-align:left;
  padding:13px 16px;font-size:14px;white-space:nowrap;
}
.article-content tbody td{padding:12px 16px;border-bottom:1px solid var(--line);background:#fff;}
.article-content tbody tr:nth-child(even) td{background:#FCFAF8;}
.article-content hr{border:0;height:1px;background:var(--line);margin:2.4em 0;}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed #D9D2C9;background:#fff;border-radius:var(--radius-card);
  padding:56px 32px;text-align:center;
}
.empty-state svg{margin:0 auto 18px;color:var(--c-primary);opacity:.85;}
.empty-state h2{font-size:22px;font-weight:800;margin-bottom:10px;}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:22px;}

/* ---------- 文章底部 ---------- */
.article-foot{padding-bottom:72px;}
.foot-tags{display:flex;flex-wrap:wrap;gap:10px;padding:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.foot-tags .tag{background:var(--c-accent-soft);color:#0E9E8F;}
.pager-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:40px;}
.pager-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;box-shadow:var(--shadow-1);position:relative;overflow:hidden;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.pager-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.pager-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#DFD8CE;}
.pager-card:hover::before{transform:scaleX(1);}
.pager-label{font-size:12.5px;font-weight:700;letter-spacing:.06em;color:var(--ink-3);}
.pager-card h3{font-size:18px;font-weight:700;margin-top:10px;line-height:1.45;}
.pager-card p{font-size:14px;color:var(--ink-2);margin-top:8px;line-height:1.75;}

.section-title{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;
  margin-bottom:32px;
}
.section-title h2{font-size:clamp(24px,2.6vw,32px);font-weight:800;position:relative;padding-left:18px;}
.section-title h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:6px;border-radius:3px;
  background:var(--c-primary);
}
.section-title p{font-size:14.5px;color:var(--ink-2);}
.related-block{margin-top:56px;}

.list-card{
  display:grid;grid-template-columns:132px minmax(0,1fr);gap:20px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px;box-shadow:var(--shadow-1);position:relative;overflow:hidden;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.list-card + .list-card{margin-top:16px;}
.list-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.list-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#DFD8CE;}
.list-card:hover::before{transform:scaleX(1);}
.list-card img{width:132px;height:96px;object-fit:cover;border-radius:var(--radius-img);}
.list-card h3{font-size:17.5px;font-weight:700;line-height:1.5;}
.list-card p{font-size:14px;color:var(--ink-2);margin-top:8px;line-height:1.75;}
.list-card .card-meta{display:flex;align-items:center;gap:12px;margin-top:12px;font-size:12.5px;color:var(--ink-3);}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;background:var(--bg-deep);color:#fff;overflow:hidden;
  border-top:1px solid var(--line-deep);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.16;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,77,46,.85),rgba(18,217,195,.7),transparent);
}
.cta-inner{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;padding:64px 0;
}
.cta-inner h2{font-size:clamp(24px,2.6vw,34px);font-weight:800;max-width:640px;line-height:1.3;}
.cta-inner p{color:rgba(255,255,255,.68);font-size:15px;margin-top:12px;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-deep);color:rgba(255,255,255,.65);border-top:1px solid var(--line-deep);}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.2fr;gap:40px;
  padding:64px 0 44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{font-size:16px;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{
  font-size:14px;color:rgba(255,255,255,.65);
  transition:color .16s var(--ease),transform .16s var(--ease);display:inline-block;
}
.footer-col ul a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid var(--line-deep);
  font-size:12px;color:rgba(255,255,255,.42);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;
  background:var(--bg-deep-2);border:1px solid rgba(255,77,46,.45);color:#fff;
  display:flex;align-items:center;justify-content:center;z-index:70;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease),box-shadow .2s var(--ease);
  box-shadow:0 0 0 0 rgba(255,77,46,0);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{box-shadow:0 0 24px -6px rgba(255,77,46,.75);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .45s ease-out,transform .45s ease-out;}
.reveal.is-visible{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .article-toc{display:none !important;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:1024px){
  .main-nav a{padding:10px 10px;font-size:14px;}
  .nav-wrap{gap:16px;}
}
@media (max-width:868px){
  .nav-toggle{display:flex;margin-left:auto;}
  .nav-actions{display:none;}
  .main-nav{
    position:fixed;top:68px;left:0;right:0;margin:0;
    background:#0E1014;border-top:1px solid var(--line-deep);
    max-height:0;overflow:hidden;transition:max-height .26s var(--ease);
    box-shadow:0 24px 40px -20px rgba(0,0,0,.8);
  }
  .main-nav.is-open{max-height:440px;}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0;padding:8px 0 16px;}
  .main-nav a{
    padding:14px 24px;font-size:15px;border-left:3px solid transparent;
  }
  .main-nav a::after{display:none;}
  .main-nav a:hover{background:rgba(255,77,46,.08);}
  .main-nav a.active{border-left-color:var(--c-primary);background:rgba(255,77,46,.08);text-shadow:none;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .page-head{padding:24px 0 32px;}
  .article-layout{padding-top:32px;padding-bottom:48px;}
  .article-content{font-size:16px;}
  .cta-inner{padding:48px 0;}
  .pager-grid{grid-template-columns:1fr;gap:16px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 0 32px;}
  .footer-col p{max-width:none;}
  .list-card{grid-template-columns:104px minmax(0,1fr);gap:14px;}
  .list-card img{width:104px;height:82px;}
  .article-content table{font-size:14px;}
}
@media (max-width:480px){
  .brand-text{font-size:15.5px;}
  .page-head h1{font-size:26px;}
  .breadcrumb .current{max-width:200px;}
  .meta-row{gap:6px 14px;font-size:13px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .to-top{right:16px;bottom:18px;width:42px;height:42px;}
  .list-card{grid-template-columns:minmax(0,1fr);}
  .list-card img{width:100%;height:150px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --c-primary:#FF4D2E;
  --c-primary-dark:#E23A1E;
  --c-accent:#12D9C3;
  --c-accent-2:#FFC53D;
  --bg-deep:#0A0B0E;
  --bg-deep-2:#15171D;
  --bg-cream:#FAF8F5;
  --bg-card:#FFFFFF;
  --ink:#1A1C22;
  --ink-2:#6B7076;
  --ink-3:#9AA0A6;
  --line:#EAE6E0;
  --line-deep:rgba(255,255,255,.08);
  --ok:#12B886;
  --warn:#F59E0B;
  --err:#E5484D;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(10,11,14,.06);
  --shadow-2:0 12px 32px -12px rgba(10,11,14,.18);
  --shadow-glow:0 0 0 1px rgba(255,77,46,.35),0 0 24px -6px rgba(255,77,46,.45);
  --space-1:8px;
  --space-2:16px;
  --space-3:24px;
  --space-4:32px;
  --space-5:48px;
  --space-6:64px;
  --space-7:96px;
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","HarmonyOS Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg-cream);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{line-height:1.25;font-weight:800;letter-spacing:-.01em;}
p+p{margin-top:1.2em;}
strong{font-weight:700;}
::selection{background:rgba(255,77,46,.18);}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;transition:all .16s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px -10px rgba(255,77,46,.9);}
.btn-primary:hover{background:#ff5f43;transform:translateY(-1px);box-shadow:0 8px 20px -8px rgba(255,77,46,.6);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.24);color:#fff;}
.btn-ghost:hover{border-color:rgba(255,255,255,.55);background:rgba(255,255,255,.06);transform:translateY(-1px);}
.btn-ghost-dark{background:transparent;border-color:rgba(10,11,14,.16);color:var(--ink);}
.btn-ghost-dark:hover{border-color:rgba(10,11,14,.4);background:#fff;transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--c-primary);
}
.link-arrow svg{transition:transform .18s ease;}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.tag-func{background:rgba(255,77,46,.1);color:var(--c-primary);}
.tag-cat{background:rgba(18,217,195,.12);color:#0a9c8c;}
.tag-num{background:rgba(255,197,61,.18);color:#9a6a00;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:var(--bg-deep);
  transition:background .2s ease,box-shadow .2s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(255,77,46,0),rgba(255,77,46,.8) 30%,rgba(18,217,195,.8) 70%,rgba(18,217,195,0));
  opacity:.5;transition:opacity .2s ease;
}
.site-header.scrolled{background:rgba(10,11,14,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 10px 30px -20px rgba(0,0,0,.9);}
.site-header.scrolled::after{opacity:1;}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:8px;height:20px;border-radius:2px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
  box-shadow:0 0 14px -2px rgba(255,77,46,.9);
}
.brand-text{color:#fff;font-size:18px;font-weight:800;letter-spacing:-.01em;}
.main-nav{margin-left:auto;}
.main-nav ul{display:flex;align-items:center;gap:6px;}
.main-nav a{
  position:relative;display:inline-block;padding:9px 12px;
  font-size:14.5px;color:rgba(255,255,255,.72);
  transition:color .18s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
  border-radius:2px;
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:#fff;text-shadow:0 0 12px rgba(255,77,46,.5);}
.main-nav a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid rgba(255,255,255,.16);margin-left:auto;
  flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;padding:132px 0 76px;
  background:var(--bg-deep);
  background-image:linear-gradient(180deg,rgba(10,11,14,.86),rgba(10,11,14,.94)),url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
  color:#fff;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(255,77,46,0),rgba(255,77,46,.9),rgba(18,217,195,.9),rgba(18,217,195,0));
}
.page-hero::after{
  content:"";position:absolute;inset:0;opacity:.16;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:22px 22px;
}
.page-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.55);margin-bottom:22px;}
.breadcrumb a{color:rgba(255,255,255,.7);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb span.sep{color:rgba(255,255,255,.32);}
.page-hero h1{
  font-size:clamp(34px,4.6vw,56px);line-height:1.08;letter-spacing:-.02em;
  max-width:16em;
}
.page-hero h1 em{font-style:normal;color:var(--c-primary);}
.page-hero .lead{
  margin-top:20px;max-width:44ch;font-size:17px;line-height:1.8;
  color:rgba(255,255,255,.76);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.hero-meta .tag{background:rgba(255,255,255,.08);color:rgba(255,255,255,.82);}
.hero-meta .tag.accent{background:rgba(18,217,195,.16);color:#7ff0e3;}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;}
.section-cream{background:var(--bg-cream);}
.section-white{background:#fff;}
.section-deep{background:var(--bg-deep);color:#fff;position:relative;}
.section-head{max-width:760px;margin-bottom:56px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--font-num);
  font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--c-primary);margin-bottom:14px;
}
.section-head .eyebrow::before{content:"";width:24px;height:2px;background:var(--c-primary);border-radius:2px;}
.section-head h2{font-size:clamp(26px,3.2vw,40px);letter-spacing:-.02em;}
.section-head p{margin-top:16px;color:var(--ink-2);font-size:16.5px;max-width:62ch;}
.section-deep .section-head p{color:rgba(255,255,255,.68);}
.section-deep .section-head .eyebrow{color:var(--c-accent);}
.section-deep .section-head .eyebrow::before{background:var(--c-accent);}

/* ---------- 指标条 ---------- */
.stats{border-bottom:1px solid var(--line);background:#fff;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.stat{padding:34px 26px;border-right:1px solid var(--line);}
.stat:last-child{border-right:0;}
.stat .num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:32px;font-weight:800;color:var(--c-primary);line-height:1.1;letter-spacing:-.02em;
}
.stat .num small{font-size:16px;font-weight:700;margin-left:2px;}
.stat .desc{margin-top:8px;font-size:13.5px;color:var(--ink-2);line-height:1.6;}

/* ---------- 交替长条 ---------- */
.zig-list{display:flex;flex-direction:column;gap:88px;}
.zig-item{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.zig-item.reverse .zig-media{order:2;}
.zig-media{position:relative;}
.zig-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--radius-img);box-shadow:var(--shadow-2);
}
.zig-media::before{
  content:"";position:absolute;inset:auto -14px -14px auto;width:56%;height:56%;
  border-right:2px solid rgba(255,77,46,.35);border-bottom:2px solid rgba(18,217,195,.35);
  border-radius:0 0 14px 0;pointer-events:none;
}
.zig-body .zig-index{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:44px;height:32px;padding:0 10px;border-radius:var(--radius-pill);
  background:rgba(255,77,46,.1);color:var(--c-primary);
  font-family:var(--font-num);font-weight:800;font-size:14px;letter-spacing:.06em;
  margin-bottom:18px;
}
.zig-body h2{font-size:clamp(22px,2.4vw,30px);letter-spacing:-.02em;border-left:6px solid var(--c-primary);padding-left:16px;}
.zig-body p{margin-top:18px;color:var(--ink-2);max-width:60ch;}
.check-list{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.check-list li{display:flex;gap:12px;font-size:15.5px;line-height:1.7;}
.check-list li::before{
  content:"";flex:none;width:8px;height:8px;margin-top:9px;border-radius:2px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
}
.zig-body .link-arrow{margin-top:26px;}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.scene-card{
  position:relative;background:var(--bg-card);border-radius:var(--radius-card);
  padding:32px 28px;box-shadow:var(--shadow-1);border:1px solid var(--line);
  transition:transform .2s ease,box-shadow .2s ease;
  overflow:hidden;
}
.scene-card::after{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.scene-card:hover::after{transform:scaleX(1);}
.scene-card .icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(18,217,195,.12);color:#0a9c8c;margin-bottom:18px;
}
.scene-card h3{font-size:20px;}
.scene-card .who{margin-top:6px;font-size:13.5px;color:var(--c-primary);font-weight:600;}
.scene-card p{margin-top:14px;color:var(--ink-2);font-size:15.5px;}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step;}
.step{position:relative;padding-top:22px;}
.step::before{
  content:"";position:absolute;left:0;top:0;width:40px;height:3px;border-radius:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
}
.step .step-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:40px;font-weight:800;color:rgba(26,28,34,.14);line-height:1;letter-spacing:-.03em;
}
.step h3{margin-top:12px;font-size:19px;}
.step p{margin-top:10px;font-size:15px;color:var(--ink-2);}
.section-deep .step .step-num{color:rgba(255,255,255,.16);}
.section-deep .step h3{color:#fff;}
.section-deep .step p{color:rgba(255,255,255,.66);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;}
.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;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
  transition:color .16s ease;
}
.faq-q:hover{color:var(--c-primary);}
.faq-q .chev{
  flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  transition:transform .2s ease,border-color .2s ease,background .2s ease;
}
.faq-item.open .faq-q .chev{transform:rotate(180deg);background:rgba(255,77,46,.1);border-color:rgba(255,77,46,.3);color:var(--c-primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-a p{padding:0 0 24px;color:var(--ink-2);font-size:15.5px;max-width:70ch;}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;background:var(--bg-deep);color:#fff;overflow:hidden;
  padding:72px 0;
}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(255,77,46,0),rgba(255,77,46,.9),rgba(18,217,195,.9),rgba(18,217,195,0));
}
.cta-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;}
.cta-inner h2{font-size:clamp(24px,2.8vw,34px);letter-spacing:-.02em;}
.cta-inner p{margin-top:16px;color:rgba(255,255,255,.7);max-width:46ch;}
.cta-form{display:flex;flex-direction:column;gap:12px;}
.cta-form .field{display:flex;gap:12px;}
.cta-form input{
  flex:1;height:48px;padding:0 16px;border-radius:var(--radius-btn);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.16);color:#fff;
  transition:border-color .16s ease,box-shadow .16s ease;
}
.cta-form input::placeholder{color:rgba(255,255,255,.42);}
.cta-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(255,77,46,.18);}
.cta-form input.invalid{border-color:var(--err);}
.form-note{font-size:13px;color:rgba(255,255,255,.5);}
.form-note.error{color:#ff8b8f;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-deep);color:#fff;padding:72px 0 0;position:relative;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{font-size:17px;}
.footer-col p{font-size:14px;color:rgba(255,255,255,.6);line-height:1.8;max-width:34ch;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{
  font-size:14px;color:rgba(255,255,255,.65);
  display:inline-block;transition:color .16s ease,transform .16s ease;
}
.footer-col ul a:hover{color:#fff;transform:translateX(-2px);}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:rgba(255,255,255,.45);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:90;
  width:46px;height:46px;border-radius:50%;
  background:var(--bg-deep-2);color:#fff;border:1px solid rgba(255,77,46,.5);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{box-shadow:0 0 0 1px rgba(255,77,46,.5),0 0 22px -6px rgba(255,77,46,.6);}

/* ---------- 进入视口动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .45s ease-out,transform .45s ease-out;}
.reveal.visible{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .main-nav{
    position:fixed;top:68px;right:0;width:min(360px,86vw);height:calc(100vh - 68px);
    background:var(--bg-deep-2);border-left:1px solid var(--line-deep);
    padding:24px;margin-left:0;overflow-y:auto;
    transform:translateX(100%);transition:transform .24s ease;z-index:99;
  }
  .main-nav.open{transform:translateX(0);}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:2px;}
  .main-nav a{padding:14px 12px;font-size:15.5px;border-radius:8px;}
  .main-nav a::after{left:0;right:auto;bottom:8px;width:2px;height:18px;transform:scaleY(0);transform-origin:top;}
  .main-nav a:hover::after{transform:scaleY(1);}
  .main-nav a.active{background:rgba(255,77,46,.08);}
  .main-nav a.active::after{transform:scaleY(1);}
  .nav-toggle{display:flex;}
  .nav-actions{display:none;}
  .section{padding:72px 0;}
  .page-hero{padding:110px 0 64px;}
  .scene-grid{grid-template-columns:1fr 1fr;}
  .steps{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .page-hero{padding:98px 0 56px;}
  .zig-list{gap:56px;}
  .zig-item{grid-template-columns:1fr;gap:26px;}
  .zig-item.reverse .zig-media{order:0;}
  .zig-body h2{padding-left:12px;border-left-width:4px;}
  .stats-grid{grid-template-columns:1fr 1fr;}
  .stat{padding:24px 18px;border-right:0;border-bottom:1px solid var(--line);}
  .stat:nth-child(odd){border-right:1px solid var(--line);}
  .stat:nth-last-child(-n+2){border-bottom:0;}
  .scene-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .cta-form .field{flex-direction:column;}
  .cta-form .btn{width:100%;}
}
@media (max-width:520px){
  .page-hero h1{font-size:30px;}
  .hero-actions .btn{width:100%;}
  .stat .num{font-size:26px;}
  .to-top{right:16px;bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --c-primary:#FF4D2E;
  --c-primary-dark:#E23A1E;
  --c-accent:#12D9C3;
  --c-accent-2:#FFC53D;
  --bg-deep:#0A0B0E;
  --bg-deep-2:#15171D;
  --bg-cream:#FAF8F5;
  --c-card:#FFFFFF;
  --ink:#1A1C22;
  --ink-2:#6B7076;
  --line:#EAE6E0;
  --line-deep:rgba(255,255,255,.08);
  --ok:#12B886;
  --warn:#F59E0B;
  --err:#E5484D;
  --empty:#9AA0A6;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(10,11,14,.06);
  --shadow-2:0 12px 32px -12px rgba(10,11,14,.18);
  --glow:0 0 0 1px rgba(255,77,46,.35),0 0 24px -6px rgba(255,77,46,.45);
  --space-1:8px;
  --space-2:16px;
  --space-3:24px;
  --space-4:32px;
  --space-5:48px;
  --space-6:72px;
  --space-7:96px;
  --container:1240px;
  --font-cn:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --font-num:'Inter','HarmonyOS Sans SC','PingFang SC',system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg-cream);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
input,textarea,select{font-family:inherit;font-size:15px;}
::selection{background:rgba(255,77,46,.2);}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ============ 通用排版 ============ */
h1{font-size:clamp(34px,4.4vw,58px);line-height:1.1;font-weight:800;letter-spacing:-0.02em;}
h2{font-size:clamp(26px,3vw,38px);line-height:1.22;font-weight:800;letter-spacing:-0.01em;}
h3{font-size:21px;line-height:1.4;font-weight:700;}
.lead{font-size:17px;color:var(--ink-2);line-height:1.85;}
.section{padding:var(--space-7) 0;}
.section-sm{padding:var(--space-6) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--space-4);margin-bottom:var(--space-5);flex-wrap:wrap;}
.section-title{position:relative;padding-left:20px;}
.section-title::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:6px;border-radius:3px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-accent-2));
}
.section-title .sub{display:block;font-size:14.5px;font-weight:400;color:var(--ink-2);margin-top:10px;letter-spacing:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12.5px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--c-primary);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--c-primary);opacity:.6;}
.num-tag{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:700;color:var(--c-accent);letter-spacing:.08em;
}
strong{font-weight:700;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  border:1px solid transparent;transition:all .16s ease;white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px -10px rgba(255,77,46,.9);}
.btn-primary:hover{background:#ff6144;transform:translateY(-1px);box-shadow:0 8px 20px -8px rgba(255,77,46,.6);}
.btn-primary:active{transform:translateY(0);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn-ghost{background:transparent;border-color:rgba(10,11,14,.16);color:var(--ink);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.24);color:#fff;}
.btn-ghost-light:hover{border-color:var(--c-primary);color:#fff;transform:translateY(-1px);box-shadow:var(--glow);}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--c-primary);}
.link-arrow i{transition:transform .18s ease;font-size:12px;}
.link-arrow:hover i{transform:translateX(4px);}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;line-height:1.6;
}
.badge-func{background:rgba(255,77,46,.1);color:var(--c-primary);}
.badge-cat{background:rgba(18,217,195,.12);color:#0E9C8C;}
.badge-mark{background:rgba(255,197,61,.16);color:#9A6B00;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:var(--bg-deep);
  border-bottom:1px solid transparent;
  transition:background .2s ease,border-color .2s ease,backdrop-filter .2s ease;
}
.site-header.is-scrolled{
  background:rgba(10,11,14,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:transparent;
  box-shadow:0 1px 0 rgba(255,77,46,.35),0 8px 24px -18px rgba(0,0,0,.9);
}
.nav-wrap{
  display:flex;align-items:center;gap:24px;
  height:68px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:8px;height:22px;border-radius:2px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
  box-shadow:0 0 14px -2px rgba(255,77,46,.85);
}
.brand-text{font-size:18px;font-weight:800;color:#fff;letter-spacing:-0.01em;white-space:nowrap;}
.main-nav{flex:1;min-width:0;}
.main-nav ul{display:flex;align-items:center;gap:26px;flex-wrap:nowrap;}
.main-nav a{
  position:relative;display:inline-block;
  font-size:14.5px;font-weight:500;color:rgba(255,255,255,.72);
  padding:6px 0;transition:color .18s ease;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  transition:right .22s ease;
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{right:0;}
.main-nav a.active{color:#fff;text-shadow:0 0 12px rgba(255,77,46,.5);}
.main-nav a.active::after{right:0;}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-icon{
  width:38px;height:38px;border-radius:var(--radius-btn);
  display:inline-flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.72);border:1px solid var(--line-deep);
  transition:all .16s ease;
}
.nav-icon:hover{color:#fff;border-color:rgba(255,77,46,.5);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--radius-btn);
  background:transparent;border:1px solid var(--line-deep);cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--bg-deep);
  color:#fff;
  padding:78px 0 84px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(10,11,14,.72) 0%,rgba(10,11,14,.86) 55%,rgba(10,11,14,.96) 100%),
                   url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.85;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--c-primary),var(--c-accent),transparent);
  opacity:.85;
}
.page-hero .container{position:relative;z-index:2;}
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);margin-bottom:22px;
}
.crumbs a{color:rgba(255,255,255,.72);}
.crumbs a:hover{color:#fff;}
.crumbs .sep{opacity:.5;}
.page-hero h1{max-width:16em;}
.page-hero .hero-sub{
  margin-top:20px;max-width:640px;
  font-size:17px;line-height:1.8;color:rgba(255,255,255,.72);
}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;
}
.hero-meta .pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:var(--radius-pill);
  font-size:13px;color:rgba(255,255,255,.8);
  background:rgba(255,255,255,.05);border:1px solid var(--line-deep);
}
.hero-meta .pill i{color:var(--c-accent);font-size:12px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}

/* ============ 指标条 ============ */
.metrics{
  background:var(--bg-deep-2);
  border-bottom:1px solid var(--line-deep);
  padding:36px 0;
}
.metrics-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.metric-item{border-left:1px solid var(--line-deep);padding-left:18px;}
.metric-item:first-child{border-left:0;padding-left:0;}
.metric-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:32px;font-weight:800;color:var(--c-primary);line-height:1.2;
}
.metric-num small{font-size:15px;font-weight:700;margin-left:2px;}
.metric-label{font-size:13px;color:rgba(255,255,255,.55);margin-top:6px;}

/* ============ 筛选标签 ============ */
.filter-bar{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:18px 0 26px;
  border-bottom:1px solid var(--line);
  margin-bottom:36px;
}
.filter-bar .filter-label{
  font-size:13.5px;color:var(--ink-2);font-weight:600;margin-right:6px;
}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  height:36px;padding:0 16px;border-radius:var(--radius-pill);
  font-size:14px;font-weight:500;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);cursor:pointer;
  transition:all .16s ease;
}
.chip i{font-size:11px;opacity:.7;}
.chip:hover{color:var(--c-primary);border-color:rgba(255,77,46,.4);transform:translateY(-1px);}
.chip.is-active{
  background:var(--c-primary);color:#fff;border-color:var(--c-primary);
  box-shadow:0 8px 18px -10px rgba(255,77,46,.9);
}
.chip.is-active i{opacity:1;}

/* ============ 卡片网格（2列） ============ */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}

.card{
  position:relative;background:var(--c-card);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  border:1px solid var(--line);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  opacity:0;transition:opacity .2s ease;z-index:3;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.card:hover::before{opacity:1;}

.play-card .card-media{
  position:relative;aspect-ratio:16/9;overflow:hidden;background:#EFEBE5;
}
.play-card .card-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;
}
.play-card:hover .card-media img{transform:scale(1.03);}
.play-card .card-media .media-tag{
  position:absolute;left:14px;top:14px;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;color:#fff;
  background:rgba(10,11,14,.72);backdrop-filter:blur(6px);
}
.play-card .card-body{padding:22px 24px 24px;}
.play-card h3{margin-bottom:10px;}
.play-card p{font-size:15px;color:var(--ink-2);line-height:1.8;}
.card-info{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--ink-2);
}
.card-info span{display:inline-flex;align-items:center;gap:6px;}
.card-info i{font-size:12px;color:var(--c-accent);}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:18px;gap:12px;flex-wrap:wrap;}

/* ============ 流程 ============ */
.flow{
  background:#fff;border-radius:var(--radius-card);border:1px solid var(--line);
  box-shadow:var(--shadow-1);padding:44px 40px;
}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;}
.flow-step{position:relative;padding-top:8px;}
.flow-step .step-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:40px;font-weight:800;line-height:1;letter-spacing:-0.02em;
  color:transparent;-webkit-text-stroke:1.5px rgba(255,77,46,.75);
}
.flow-step h3{font-size:18px;margin:14px 0 8px;}
.flow-step p{font-size:14.5px;color:var(--ink-2);line-height:1.75;}
.flow-step::after{
  content:"";position:absolute;left:0;bottom:-14px;width:36px;height:2px;
  background:linear-gradient(90deg,var(--c-primary),transparent);
}
.flow-step:last-child::after{display:none;}

/* ============ 图文条 ============ */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.split-media{
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-2);background:#EFEBE5;
}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .5s ease;}
.split-media:hover img{transform:scale(1.03);}
.point-list{margin-top:22px;display:grid;gap:14px;}
.point-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15.5px;color:var(--ink-2);line-height:1.8;
}
.point-list li i{
  margin-top:6px;font-size:13px;color:var(--c-primary);flex-shrink:0;
}
.point-list li strong{color:var(--ink);}

/* ============ FAQ ============ */
.faq-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;background:transparent;border:0;cursor:pointer;
  text-align:left;font-size:17px;font-weight:600;color:var(--ink);
  transition:color .16s ease;
}
.faq-q:hover{color:var(--c-primary);}
.faq-q i{
  font-size:14px;color:var(--c-primary);transition:transform .2s ease;flex-shrink:0;
}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .2s ease;
}
.faq-a p{
  padding:0 26px 24px;font-size:15.5px;color:var(--ink-2);line-height:1.85;max-width:72ch;
}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--bg-deep);color:#fff;
  border-radius:var(--radius-card);
  padding:56px 52px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent),transparent);
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,77,46,.22),transparent 65%);
}
.cta-band .cta-copy{position:relative;z-index:2;max-width:620px;}
.cta-band h2{font-size:clamp(24px,2.6vw,32px);}
.cta-band p{margin-top:12px;font-size:15.5px;color:rgba(255,255,255,.7);line-height:1.8;}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;align-items:center;}
.cta-note{font-size:13px;color:rgba(255,255,255,.5);margin-top:14px;position:relative;z-index:2;}

/* ============ 表单（订阅/咨询） ============ */
.form-inline{display:flex;gap:12px;flex-wrap:wrap;}
.form-inline input{
  height:48px;min-width:240px;flex:1 1 240px;
  padding:0 16px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.06);color:#fff;
  transition:border-color .16s ease,box-shadow .16s ease;
}
.form-inline input::placeholder{color:rgba(255,255,255,.42);}
.form-inline input:focus{
  outline:0;border-color:var(--c-primary);
  box-shadow:0 0 0 2px rgba(255,77,46,.22);
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-deep);color:#fff;margin-top:var(--space-7);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-text{font-size:17px;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:18px;letter-spacing:.02em;}
.footer-col p{font-size:14px;color:rgba(255,255,255,.6);line-height:1.8;max-width:34ch;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{
  font-size:14px;color:rgba(255,255,255,.65);
  transition:color .16s ease,transform .16s ease;display:inline-block;
}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid var(--line-deep);
  padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:rgba(255,255,255,.45);
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:130;
  width:46px;height:46px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--bg-deep-2);color:#fff;border:1px solid rgba(255,77,46,.5);
  box-shadow:var(--glow);cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:all .2s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}

/* ============ 进入视口动效 ============ */
.reveal{opacity:0;transform:translateY(12px);}
.reveal.is-in{opacity:1;transform:translateY(0);transition:opacity .45s ease-out,transform .45s ease-out;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;}
  .reveal.is-in{transition:none;}
  html{scroll-behavior:auto;}
  *{transition-duration:.01ms !important;}
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .main-nav ul{gap:20px;}
  .main-nav a{font-size:14px;}
}
@media (max-width:1024px){
  .nav-toggle{display:flex;}
  .main-nav{
    position:absolute;left:0;right:0;top:68px;
    background:var(--bg-deep-2);
    border-top:1px solid var(--line-deep);
    border-bottom:1px solid var(--line-deep);
    padding:0 24px;
    max-height:0;overflow:hidden;
    transition:max-height .25s ease;
  }
  .main-nav.is-open{max-height:460px;}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0;padding:8px 0 14px;}
  .main-nav li{border-bottom:1px solid var(--line-deep);}
  .main-nav li:last-child{border-bottom:0;}
  .main-nav a{
    display:block;padding:15px 0 15px 14px;font-size:15.5px;color:#fff;
  }
  .main-nav a::after{display:none;}
  .main-nav a.active{border-left:3px solid var(--c-primary);padding-left:11px;}
  .nav-actions .btn{display:none;}
  .split{grid-template-columns:1fr;gap:32px;}
  .flow-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .section-sm{padding:44px 0;}
  .container{padding:0 18px;}
  .page-hero{padding:52px 0 58px;}
  .metrics{padding:28px 0;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .metric-item:nth-child(odd){border-left:0;padding-left:0;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .flow{padding:32px 24px;}
  .flow-grid{grid-template-columns:1fr;}
  .flow-step::after{bottom:0;}
  .cta-band{padding:36px 26px;}
  .split-media img{aspect-ratio:16/10;}
  .faq-q{padding:18px 20px;font-size:16px;}
  .faq-a p{padding:0 20px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding-top:48px;margin-top:56px;}
  .to-top{right:16px;bottom:16px;}
}
@media (max-width:480px){
  body{font-size:16px;}
  .brand-text{font-size:16px;}
  .section-head{gap:12px;}
  .card-info{gap:12px;}
  .btn-lg{width:100%;}
  .hero-cta .btn{width:100%;}
  .form-inline input{min-width:0;}
}

/* roulang page: category2 */
:root{
  --c-primary:#FF4D2E;
  --c-primary-hover:#FF6247;
  --c-accent:#12D9C3;
  --c-accent-2:#FFC53D;
  --bg-deep:#0A0B0E;
  --bg-deep-2:#15171D;
  --bg-cream:#FAF8F5;
  --c-card:#FFFFFF;
  --c-ink:#1A1C22;
  --c-ink-2:#6B7076;
  --c-line:#EAE6E0;
  --line-deep:rgba(255,255,255,.08);
  --c-success:#12B886;
  --c-warn:#F59E0B;
  --c-danger:#E5484D;
  --c-empty:#9AA0A6;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(10,11,14,.06);
  --shadow-2:0 12px 32px -12px rgba(10,11,14,.18);
  --shadow-btn:0 8px 20px -8px rgba(255,77,46,.6);
  --shadow-glow:0 0 0 1px rgba(255,77,46,.35),0 0 24px -6px rgba(255,77,46,.45);
  --space-1:8px;
  --space-2:12px;
  --space-3:16px;
  --space-4:24px;
  --space-5:32px;
  --space-6:48px;
  --space-7:72px;
  --space-8:104px;
  --font:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--bg-cream);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .16s var(--ease);}
button,input{font-family:inherit;font-size:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}

.container{max-width:1240px;margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),transform .16s var(--ease),box-shadow .16s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 1px 2px rgba(255,77,46,.25);}
.btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-btn);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.24);}
.btn-ghost:hover{border-color:rgba(255,255,255,.55);background:rgba(255,255,255,.06);transform:translateY(-1px);}
.btn-outline{background:transparent;color:var(--c-ink);border-color:rgba(10,11,14,.16);}
.btn-outline:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:14px;}
.link-arrow::after{content:'→';transition:transform .16s var(--ease);display:inline-block;}
.link-arrow:hover::after{transform:translateX(4px);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:var(--bg-deep);
  transition:background-color .2s var(--ease),box-shadow .2s var(--ease),backdrop-filter .2s var(--ease);
}
.site-header.scrolled{
  background:rgba(10,11,14,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 1px 0 0 rgba(255,255,255,.04);
}
.site-header::after{
  content:'';position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,77,46,.55) 18%,rgba(18,217,195,.45) 62%,transparent);
  opacity:.65;pointer-events:none;
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;letter-spacing:.01em;}
.brand-mark{
  width:8px;height:8px;border-radius:2px;flex:none;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  box-shadow:0 0 12px rgba(255,77,46,.7);
}
.brand-text{white-space:nowrap;}
.main-nav{margin-left:8px;flex:1;}
.main-nav ul{display:flex;align-items:center;gap:6px;}
.main-nav a{
  position:relative;display:inline-block;padding:10px 12px;
  font-size:14.5px;color:rgba(255,255,255,.72);border-radius:8px;
  transition:color .16s var(--ease);
}
.main-nav a::after{
  content:'';position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
  border-radius:2px;
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:#fff;text-shadow:0 0 12px rgba(255,77,46,.5);}
.main-nav a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line-deep);border-radius:10px;
  background:transparent;cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:rgba(255,255,255,.8);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--bg-deep);color:#fff;overflow:hidden;padding:64px 0 88px;}
.hero::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(900px 420px at 12% -10%,rgba(255,77,46,.18),transparent 65%),
    radial-gradient(760px 380px at 92% 12%,rgba(18,217,195,.11),transparent 62%);
}
.hero::after{
  content:'';position:absolute;left:0;right:0;bottom:0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(255,77,46,.7) 30%,rgba(18,217,195,.6) 70%,transparent);
}
.hero-noise{
  position:absolute;inset:0;opacity:.05;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(/%23n)'/%3E%3C/svg%3E");
}
.hero .container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.55);margin-bottom:22px;flex-wrap:wrap;}
.crumb a:hover{color:#fff;}
.crumb .sep{color:rgba(255,255,255,.3);}
.crumb .current{color:var(--c-accent);}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,77,46,.12);color:#FF8A72;font-size:13px;font-weight:600;margin-bottom:20px;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--c-primary);display:block;box-shadow:0 0 10px rgba(255,77,46,.9);}
.hero h1{
  font-size:clamp(34px,4.4vw,58px);line-height:1.1;letter-spacing:-.02em;font-weight:800;
  margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--c-primary);}
.hero-sub{font-size:17px;color:rgba(255,255,255,.72);max-width:46ch;margin-bottom:12px;}
.hero-note{font-size:14px;color:rgba(255,255,255,.5);max-width:52ch;margin-bottom:32px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-card);
  border:1px solid var(--line-deep);
}
.hero-badge{
  position:absolute;right:-14px;bottom:-14px;
  background:var(--bg-deep-2);border:1px solid rgba(255,77,46,.5);border-radius:14px;
  padding:14px 20px;box-shadow:0 0 24px -6px rgba(255,77,46,.5);text-align:left;
}
.hero-badge b{display:block;font-size:24px;font-weight:800;color:var(--c-primary);line-height:1.2;}
.hero-badge span{font-size:12px;color:rgba(255,255,255,.62);}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-alt{background:#fff;}
.section-head{margin-bottom:48px;max-width:760px;}
.section-head.with-bar{padding-left:20px;position:relative;}
.section-head.with-bar::before{
  content:'';position:absolute;left:0;top:8px;bottom:8px;width:6px;border-radius:3px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--c-primary);text-transform:uppercase;margin-bottom:10px;}
.section-head h2{font-size:clamp(26px,3vw,36px);font-weight:800;letter-spacing:-.01em;line-height:1.25;margin-bottom:14px;}
.section-head p{color:var(--c-ink-2);font-size:16px;max-width:72ch;}

/* ---------- 指南布局：粘性目录 + 步骤流 ---------- */
.guide-layout{display:grid;grid-template-columns:256px 1fr;gap:56px;align-items:start;}
.toc{position:sticky;top:96px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px 20px;box-shadow:var(--shadow-1);}
.toc h3{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--c-ink-2);margin-bottom:14px;}
.toc ol{counter-reset:toc;}
.toc li{margin-bottom:2px;}
.toc a{
  display:block;padding:8px 10px 8px 12px;font-size:14px;color:var(--c-ink-2);border-radius:8px;
  border-left:2px solid transparent;transition:all .16s var(--ease);
}
.toc a:hover{color:var(--c-ink);background:var(--bg-cream);}
.toc a.is-active{color:var(--c-primary);border-left-color:var(--c-primary);background:rgba(255,77,46,.06);font-weight:600;}
.toc-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--c-line);}
.toc-foot a{font-size:14px;font-weight:600;color:var(--c-primary);}

.prep{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px 28px;
  box-shadow:var(--shadow-1);margin-bottom:44px;
}
.prep h3{font-size:19px;font-weight:700;margin-bottom:14px;}
.prep ul{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.prep li{
  background:var(--bg-cream);border-radius:12px;padding:14px 16px;font-size:14px;color:var(--c-ink-2);
}
.prep li b{display:block;color:var(--c-ink);font-size:15px;font-weight:700;margin-bottom:4px;}

.steps{position:relative;}
.steps::before{
  content:'';position:absolute;left:20px;top:18px;bottom:26px;width:2px;
  background:linear-gradient(180deg,rgba(255,77,46,.55),rgba(18,217,195,.32),rgba(18,217,195,.05));
}
.step{position:relative;padding-left:78px;padding-bottom:52px;scroll-margin-top:110px;}
.step:last-child{padding-bottom:0;}
.step-num{
  position:absolute;left:0;top:-4px;font-size:40px;font-weight:800;line-height:1;letter-spacing:-.03em;
  color:var(--c-primary);background:var(--bg-cream);padding-right:6px;
}
.section-alt .step-num{background:#fff;}
.step h3{font-size:22px;font-weight:700;margin-bottom:12px;letter-spacing:-.01em;}
.step p{color:var(--c-ink-2);font-size:16px;margin-bottom:12px;}
.step ul{margin-top:6px;}
.step ul li{
  position:relative;padding-left:20px;font-size:15px;color:var(--c-ink-2);margin-bottom:8px;
}
.step ul li::before{
  content:'';position:absolute;left:2px;top:12px;width:7px;height:7px;border-radius:2px;
  background:var(--c-accent);transform:rotate(45deg);
}
.step-tip{
  display:flex;gap:10px;align-items:flex-start;margin-top:14px;padding:14px 16px;
  background:rgba(18,217,195,.08);border-left:3px solid var(--c-accent);border-radius:0 10px 10px 0;
  font-size:14px;color:var(--c-ink-2);
}
.step-tip b{color:var(--c-ink);font-weight:700;}

.checklist{
  margin-top:8px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 28px;box-shadow:var(--shadow-1);
}
.checklist h3{font-size:19px;font-weight:700;margin-bottom:14px;}
.checklist ul{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 26px;}
.checklist li{position:relative;padding-left:26px;font-size:15px;color:var(--c-ink-2);}
.checklist li::before{
  content:'✓';position:absolute;left:0;top:0;color:var(--c-success);font-weight:700;font-size:14px;
}

/* ---------- 场景卡片 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  position:relative;background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card::before{
  content:'';position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(255,77,46,.28);}
.card:hover::before{transform:scaleX(1);}
.card .tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(18,217,195,.12);color:#0E9E8F;font-size:12.5px;font-weight:600;margin-bottom:16px;
}
.card h3{font-size:19px;font-weight:700;margin-bottom:10px;}
.card p{color:var(--c-ink-2);font-size:15px;}
.card-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  border:1.5px solid rgba(255,77,46,.5);color:var(--c-primary);margin-bottom:18px;
}
.card-icon svg{width:22px;height:22px;}

/* ---------- 卡点对照 ---------- */
.pit-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.pit{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px 28px;
  box-shadow:var(--shadow-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.pit:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.pit .q{display:flex;gap:10px;align-items:flex-start;font-size:17px;font-weight:700;margin-bottom:10px;}
.pit .q span{
  flex:none;width:24px;height:24px;border-radius:8px;background:rgba(255,77,46,.1);color:var(--c-primary);
  font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center;margin-top:5px;
}
.pit p{font-size:15px;color:var(--c-ink-2);}

/* ---------- FAQ ---------- */
.faq{max-width:900px;margin:0 auto;border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;padding:22px 4px;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--c-ink);transition:color .16s var(--ease);
}
.faq-q:hover{color:var(--c-primary);}
.faq-q .arrow{
  flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--c-ink-2);
  transition:transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.faq-item.open .faq-q .arrow{transform:rotate(180deg);border-color:var(--c-primary);color:var(--c-primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s var(--ease);}
.faq-a p{padding:0 4px 24px;color:var(--c-ink-2);font-size:15.5px;max-width:72ch;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;background:var(--bg-deep);color:#fff;border-radius:20px;overflow:hidden;
  padding:56px;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
}
.cta-band::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(600px 300px at 8% 0%,rgba(255,77,46,.2),transparent 62%);
}
.cta-band::after{
  content:'';position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent) 55%,transparent);
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(24px,2.8vw,32px);font-weight:800;line-height:1.3;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.68);font-size:15.5px;max-width:46ch;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px;}
.cta-form{background:var(--bg-deep-2);border:1px solid var(--line-deep);border-radius:var(--r-card);padding:26px;}
.cta-form h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.cta-form p{font-size:13.5px;color:rgba(255,255,255,.55);margin-bottom:16px;}
.field-row{display:flex;gap:10px;}
.field input{
  width:100%;height:48px;border-radius:var(--r-btn);padding:0 16px;font-size:15px;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);color:#fff;
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.field input::placeholder{color:rgba(255,255,255,.38);}
.field input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(255,77,46,.22);}
.field-error{display:none;font-size:13px;color:#FF8A80;margin-top:8px;}
.field.has-error input{border-color:var(--c-danger);}
.field.has-error .field-error{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-deep);color:rgba(255,255,255,.65);padding-top:72px;margin-top:96px;border-top:1px solid var(--line-deep);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.25fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16px;margin-bottom:14px;}
.footer-col p{font-size:14px;color:rgba(255,255,255,.55);max-width:34ch;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.65);display:inline-block;transition:color .16s var(--ease),transform .16s var(--ease);}
.footer-col ul a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid var(--line-deep);padding:20px 0;display:flex;justify-content:space-between;
  gap:12px;flex-wrap:wrap;font-size:12px;color:rgba(255,255,255,.45);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .45s var(--ease),transform .45s var(--ease);}
.reveal.is-visible{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-wrap{gap:16px;}
  .main-nav a{padding:10px 9px;font-size:14px;}
}
@media (max-width:1024px){
  .nav-toggle{display:flex;}
  .main-nav{
    position:absolute;left:0;right:0;top:68px;background:var(--bg-deep-2);
    border-top:1px solid var(--line-deep);border-bottom:1px solid var(--line-deep);
    padding:12px 0;display:none;margin-left:0;box-shadow:0 24px 40px -24px rgba(0,0,0,.7);
  }
  .main-nav.open{display:block;}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0;padding:0 16px;}
  .main-nav a{display:block;padding:14px 12px;font-size:15px;border-left:2px solid transparent;border-radius:8px;}
  .main-nav a::after{display:none;}
  .main-nav a.active{border-left-color:var(--c-primary);background:rgba(255,77,46,.08);text-shadow:none;color:#fff;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-figure{order:2;}
  .hero-badge{right:12px;bottom:12px;}
  .guide-layout{grid-template-columns:1fr;gap:32px;}
  .toc{position:static;display:none;}
  .prep ul{grid-template-columns:1fr;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;padding:40px;gap:32px;}
  .footer-grid{grid-template-columns:1.4fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:64px 0;}
  .hero{padding:48px 0 64px;}
  .hero-badge{padding:10px 16px;}
  .hero-badge b{font-size:20px;}
  .step{padding-left:60px;padding-bottom:40px;}
  .step-num{font-size:32px;}
  .steps::before{left:15px;}
  .grid-3{grid-template-columns:1fr;}
  .pit-grid{grid-template-columns:1fr;}
  .checklist ul{grid-template-columns:1fr;}
  .cta-band{padding:32px 24px;border-radius:16px;}
  .cta-form{padding:22px;}
  .field-row{flex-direction:column;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{margin-top:64px;padding-top:52px;}
}
@media (max-width:480px){
  .brand-text{font-size:15px;}
  .btn{width:100%;}
  .hero-cta{flex-direction:column;}
  .hero-cta .btn{width:100%;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .section-head h2{font-size:24px;}
}

/* roulang page: category5 */
:root{
  --c-primary:#FF4D2E;
  --c-primary-dark:#E63A1D;
  --c-accent:#12D9C3;
  --c-accent-2:#FFC53D;
  --bg-deep:#0A0B0E;
  --bg-deep-2:#15171D;
  --deep-line:rgba(255,255,255,.08);
  --bg-cream:#FAF8F5;
  --card:#FFFFFF;
  --ink:#1A1C22;
  --ink-2:#6B7076;
  --ink-3:#9AA0A6;
  --line:#EAE6E0;
  --ok:#12B886;
  --warn:#F59E0B;
  --err:#E5484D;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(10,11,14,.06);
  --shadow-2:0 12px 32px -12px rgba(10,11,14,.18);
  --shadow-glow:0 0 0 1px rgba(255,77,46,.35),0 0 24px -6px rgba(255,77,46,.45);
  --space-1:8px;--space-2:16px;--space-3:24px;--space-4:32px;--space-5:48px;--space-6:64px;--space-7:96px;
  --nav-h:68px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink);background:var(--bg-cream);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;transition:color .16s var(--ease);}
a:hover{color:var(--c-primary);}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;font-weight:800;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;border-radius:6px;}
.container{max-width:1240px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  height:var(--nav-h);
  background:var(--bg-deep);
  transition:background .2s var(--ease),backdrop-filter .2s var(--ease);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(255,77,46,0),rgba(255,77,46,.9) 18%,rgba(18,217,195,.85) 82%,rgba(18,217,195,0));
  opacity:0;transition:opacity .2s var(--ease);
}
.site-header.is-scrolled{background:rgba(10,11,14,.82);backdrop-filter:blur(12px);}
.site-header.is-scrolled::after{opacity:1;}
.nav-wrap{display:flex;align-items:center;gap:24px;height:var(--nav-h);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:8px;height:22px;border-radius:3px;display:inline-block;
  background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
  box-shadow:0 0 14px -3px rgba(255,77,46,.9);
}
.brand-text{font-size:18px;font-weight:800;color:#fff;letter-spacing:.01em;white-space:nowrap;}
.main-nav{flex:1 1 auto;min-width:0;}
.main-nav ul{display:flex;align-items:center;gap:4px;}
.main-nav a{
  position:relative;display:block;padding:10px 12px;font-size:14.5px;
  color:rgba(255,255,255,.72);white-space:nowrap;border-radius:8px;
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:#fff;text-shadow:0 0 12px rgba(255,77,46,.5);}
.main-nav a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--deep-line);flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 1px 2px rgba(10,11,14,.12);}
.btn-primary:hover{background:#FF6044;color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px -8px rgba(255,77,46,.6);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 2px 6px -4px rgba(255,77,46,.5);}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid rgba(10,11,14,.16);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);}
.btn-ghost-dark{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.24);}
.btn-ghost-dark:hover{color:#fff;border-color:rgba(255,77,46,.7);transform:translateY(-1px);box-shadow:var(--shadow-glow);}
.btn-sm{height:38px;font-size:14px;padding:0 16px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--c-primary);}
.link-arrow svg{transition:transform .16s var(--ease);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;padding:calc(var(--nav-h) + 76px) 0 72px;
  background-color:var(--bg-deep);
  background-image:linear-gradient(115deg,rgba(10,11,14,.96) 0%,rgba(10,11,14,.86) 46%,rgba(10,11,14,.62) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  color:#fff;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:linear-gradient(90deg,rgba(255,77,46,0),rgba(255,77,46,.9),rgba(18,217,195,.9),rgba(18,217,195,0));
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.55);margin-bottom:20px;flex-wrap:wrap;}
.crumbs a{color:rgba(255,255,255,.7);}
.crumbs a:hover{color:#fff;}
.crumbs span.sep{color:rgba(255,255,255,.3);}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--radius-pill);
  background:rgba(255,77,46,.12);border:1px solid rgba(255,77,46,.4);color:#FFB3A3;
  font-size:13px;font-weight:600;margin-bottom:22px;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block;box-shadow:0 0 10px var(--c-accent);}
.page-hero h1{
  font-size:clamp(34px,4.6vw,58px);line-height:1.08;letter-spacing:-.02em;font-weight:800;
  max-width:19ch;color:#fff;
}
.page-hero h1 em{font-style:normal;color:var(--c-primary);}
.hero-sub{margin-top:20px;max-width:56ch;font-size:17px;line-height:1.8;color:rgba(255,255,255,.76);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:28px;margin-top:40px;padding-top:26px;border-top:1px solid var(--deep-line);}
.hero-meta div{min-width:120px;}
.hero-meta strong{display:block;font-size:24px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.hero-meta span{font-size:13px;color:rgba(255,255,255,.55);}

/* ---------- Section base ---------- */
.section{padding:var(--space-7) 0;}
.section-sm{padding:var(--space-6) 0;}
.section-head{margin-bottom:var(--space-5);}
.section-head h2{
  font-size:clamp(26px,3vw,38px);font-weight:800;letter-spacing:-.02em;
  padding-left:18px;position:relative;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:6px;border-radius:3px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
}
.section-head p{margin-top:14px;margin-left:18px;max-width:64ch;color:var(--ink-2);font-size:16px;}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--c-primary);margin-bottom:12px;
}

/* ---------- Metrics ---------- */
.metrics{background:var(--bg-cream);padding:0 0 var(--space-6);}
.metrics-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:-44px;}
.metric-card{
  background:var(--card);border-radius:var(--radius-card);box-shadow:var(--shadow-2);
  padding:28px 26px;position:relative;overflow:hidden;
  border:1px solid var(--line);
}
.metric-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));opacity:.9;
}
.metric-card .m-num{font-size:34px;font-weight:800;color:var(--c-primary);line-height:1.1;letter-spacing:-.02em;font-variant-numeric:tabular-nums;}
.metric-card .m-num small{font-size:16px;font-weight:700;color:var(--ink-2);margin-left:4px;}
.metric-card h3{font-size:16px;font-weight:700;margin-top:12px;}
.metric-card p{font-size:13.5px;color:var(--ink-2);line-height:1.7;margin-top:8px;}

/* ---------- Board ---------- */
.board{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:36px;align-items:start;}

/* flow */
.flow-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:30px 28px;margin-bottom:24px;
}
.flow-card h3{font-size:19px;font-weight:800;}
.flow-card > p{color:var(--ink-2);font-size:14.5px;margin-top:8px;}
.flow-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:24px;position:relative;}
.flow-steps::before{
  content:"";position:absolute;left:6px;right:6px;top:19px;height:1px;
  background:linear-gradient(90deg,rgba(255,77,46,.5),rgba(18,217,195,.5));
}
.step{position:relative;padding-top:0;}
.step .s-index{
  position:relative;z-index:1;display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;background:var(--bg-deep);color:#fff;
  font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 4px var(--card);
}
.step h4{font-size:15px;font-weight:700;margin-top:14px;}
.step p{font-size:13.5px;color:var(--ink-2);margin-top:6px;line-height:1.7;}

/* flexible card flow */
.flex-flow{column-count:2;column-gap:24px;}
.flex-card{
  break-inside:avoid;-webkit-column-break-inside:avoid;page-break-inside:avoid;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:26px 24px;margin:0 0 24px;position:relative;overflow:hidden;
  transition:box-shadow .16s var(--ease),transform .16s var(--ease),border-color .16s var(--ease);
}
.flex-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.flex-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:rgba(255,77,46,.28);}
.flex-card:hover::before{transform:scaleX(1);}
.flex-card h3{font-size:19px;font-weight:800;margin-top:14px;}
.flex-card p{color:var(--ink-2);font-size:14.5px;line-height:1.8;margin-top:10px;}
.flex-card img{border-radius:var(--radius-img);margin-top:16px;width:100%;object-fit:cover;}
.flex-card ul.ticks{margin-top:14px;display:grid;gap:8px;}
.flex-card ul.ticks li{position:relative;padding-left:20px;font-size:14px;color:var(--ink-2);line-height:1.7;}
.flex-card ul.ticks li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;
  background:rgba(18,217,195,.22);border:1.5px solid var(--c-accent);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;background:rgba(255,77,46,.1);color:var(--c-primary);
}
.badge-cyan{background:rgba(18,217,195,.12);color:#0E9E8E;}
.badge-wrap{display:flex;flex-wrap:wrap;gap:8px;}

/* side */
.side-col{position:sticky;top:calc(var(--nav-h) + 24px);display:grid;gap:20px;}
.side-card{
  background:var(--bg-deep-2);border:1px solid var(--deep-line);border-radius:var(--radius-card);
  padding:24px 22px;color:#fff;
}
.side-card h3{font-size:15px;font-weight:700;color:#fff;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--c-primary);}
.side-list{margin-top:16px;display:grid;gap:2px;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:8px;font-size:14px;color:rgba(255,255,255,.72);
  border-left:2px solid transparent;
}
.side-list a:hover{background:rgba(255,77,46,.08);border-left-color:var(--c-primary);color:#fff;}
.side-list a span.arrow{color:rgba(255,255,255,.35);font-size:13px;}
.side-note{margin-top:16px;font-size:13px;color:rgba(255,255,255,.55);line-height:1.7;}
.side-cta{margin-top:18px;display:grid;gap:10px;}
.side-card.cream{background:var(--card);border-color:var(--line);color:var(--ink);}
.side-card.cream h3{color:var(--ink);}
.side-card.cream .side-note{color:var(--ink-2);}

/* callout */
.callout{
  background:var(--card);border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:22px 24px;display:flex;gap:16px;align-items:flex-start;margin-top:24px;
}
.callout .ic{
  flex:0 0 auto;width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,77,46,.1);color:var(--c-primary);
}
.callout strong{display:block;font-size:15.5px;}
.callout p{font-size:14px;color:var(--ink-2);margin-top:6px;}

/* ---------- FAQ ---------- */
.faq{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.faq-list{max-width:880px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--c-primary);}
.faq-q .chev{flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;transition:transform .2s var(--ease),border-color .2s var(--ease);}
.faq-item.open .faq-q .chev{transform:rotate(180deg);border-color:var(--c-primary);color:var(--c-primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s var(--ease);}
.faq-a p{padding:0 44px 24px 4px;font-size:15.5px;color:var(--ink-2);line-height:1.85;}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--bg-deep);color:#fff;position:relative;overflow:hidden;
  padding:var(--space-6) 0;
}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,rgba(255,77,46,0),rgba(255,77,46,.9),rgba(18,217,195,.85),rgba(18,217,195,0));
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(24px,3vw,34px);font-weight:800;max-width:22ch;}
.cta-inner p{margin-top:14px;color:rgba(255,255,255,.66);font-size:15.5px;max-width:52ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-deep);color:rgba(255,255,255,.65);padding:var(--space-6) 0 0;border-top:1px solid var(--deep-line);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.1fr;gap:40px;padding-bottom:var(--space-5);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-text{font-size:17px;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col p{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.6);}
.footer-col ul{display:grid;gap:10px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.65);display:inline-block;}
.footer-col ul a:hover{color:#fff;transform:translateX(-2px);}
.footer-bottom{
  border-top:1px solid var(--deep-line);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:rgba(255,255,255,.42);
}
.back-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:50%;background:var(--bg-deep-2);color:#fff;
  border:1px solid rgba(255,77,46,.5);display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 20px -6px rgba(255,77,46,.6);
  opacity:0;pointer-events:none;transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.back-top.show{opacity:1;pointer-events:auto;}
.back-top:hover{transform:translateY(-2px);}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .45s ease-out,transform .45s ease-out;}
.reveal.is-visible{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media (max-width:1180px){
  .board{grid-template-columns:minmax(0,1fr) 288px;gap:28px;}
  .main-nav a{padding:10px 9px;font-size:14px;}
}
@media (max-width:1024px){
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;top:var(--nav-h);left:0;right:0;bottom:0;
    background:var(--bg-deep-2);padding:20px 24px 40px;overflow-y:auto;
    transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .2s var(--ease),transform .2s var(--ease);
  }
  body.nav-open .main-nav{opacity:1;transform:none;pointer-events:auto;}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:4px;}
  .main-nav a{padding:14px 12px;font-size:15.5px;border-left:2px solid transparent;}
  .main-nav a::after{display:none;}
  .main-nav a.active{background:rgba(255,77,46,.08);border-left-color:var(--c-primary);}
  .board{grid-template-columns:1fr;}
  .side-col{position:static;}
  .flow-steps{grid-template-columns:repeat(2,1fr);}
  .flow-steps::before{display:none;}
  .section{padding:var(--space-6) 0;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .nav-actions .btn{display:none;}
  .page-hero{padding:calc(var(--nav-h) + 52px) 0 56px;}
  .hero-sub{font-size:16px;}
  .hero-meta{gap:20px;}
  .metrics-grid{grid-template-columns:1fr;margin-top:-32px;}
  .flex-flow{column-count:1;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .faq-q{font-size:16px;}
  .faq-a p{padding-right:20px;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .page-hero h1{font-size:clamp(28px,8vw,36px);}
  .section-head h2{padding-left:14px;}
  .section-head p{margin-left:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --c-primary:#FF4D2E;
  --c-primary-dark:#E63E20;
  --c-accent:#12D9C3;
  --c-accent-2:#FFC53D;
  --bg-deep:#0A0B0E;
  --bg-deep-2:#15171D;
  --bg-cream:#FAF8F5;
  --card:#FFFFFF;
  --ink:#1A1C22;
  --ink-2:#6B7076;
  --ink-3:#3A3F47;
  --line:#EAE6E0;
  --line-dark:rgba(255,255,255,.08);
  --ok:#12B886;
  --warn:#F59E0B;
  --err:#E5484D;
  --empty:#9AA0A6;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(10,11,14,.06);
  --shadow-2:0 12px 32px -12px rgba(10,11,14,.18);
  --glow:0 0 0 1px rgba(255,77,46,.35),0 0 24px -6px rgba(255,77,46,.45);
  --space-1:8px;
  --space-2:16px;
  --space-3:24px;
  --space-4:32px;
  --space-5:48px;
  --space-6:72px;
  --space-7:104px;
  --font-cn:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --font-num:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg-cream);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.2;font-weight:800;letter-spacing:-.01em;}
p{margin:0;}
::selection{background:rgba(255,77,46,.22);}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;border-radius:4px;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ---------- 容器与板块 ---------- */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:var(--space-7) 0;}
.section.tight{padding:var(--space-6) 0;}
.section.white{background:#fff;}
.section.deep{background:var(--bg-deep);color:#fff;}
.section-head{display:flex;align-items:flex-start;gap:20px;margin-bottom:var(--space-5);flex-wrap:wrap;}
.sec-num{
  font-family:var(--font-num);
  font-size:40px;
  font-weight:800;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1.4px rgba(255,77,46,.55);
  letter-spacing:-.02em;
  padding-top:4px;
}
.section-head h2{font-size:clamp(26px,3vw,36px);position:relative;padding-left:18px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:6px;border-radius:3px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
}
.section-head .sub{flex:1 1 100%;max-width:72ch;color:var(--ink-2);font-size:16px;margin-top:-6px;padding-left:18px;}
.section.deep .section-head .sub{color:rgba(255,255,255,.68);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:var(--bg-deep);
  border-bottom:1px solid var(--line-dark);
  transition:background .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  opacity:0;transition:opacity .2s var(--ease);
}
.site-header.scrolled{background:rgba(10,11,14,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);}
.site-header.scrolled::after{opacity:1;}
.nav-wrap{display:flex;align-items:center;gap:22px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:10px;height:10px;border-radius:2px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  box-shadow:0 0 12px rgba(255,77,46,.7);
}
.brand-text{color:#fff;font-weight:800;font-size:17px;letter-spacing:.01em;white-space:nowrap;}
.main-nav{flex:1 1 auto;}
.main-nav ul{display:flex;align-items:center;gap:24px;flex-wrap:nowrap;}
.main-nav a{
  position:relative;display:inline-block;padding:6px 0;
  color:rgba(255,255,255,.72);font-size:15px;white-space:nowrap;
  transition:color .2s var(--ease);
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:#fff;text-shadow:0 0 12px rgba(255,77,46,.5);}
.main-nav a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;border-radius:10px;
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:#fff;transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  border:1px solid transparent;transition:transform .16s var(--ease),background .16s var(--ease),box-shadow .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:#FF6446;transform:translateY(-1px);box-shadow:0 8px 20px -8px rgba(255,77,46,.6);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.24);}
.btn-ghost:hover{border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.06);transform:translateY(-1px);}
.btn-outline{background:#fff;color:var(--ink);border-color:rgba(10,11,14,.16);}
.btn-outline:hover{border-color:rgba(255,77,46,.6);color:var(--c-primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary-dark);font-weight:600;font-size:15px;}
.link-more svg{transition:transform .18s var(--ease);}
.link-more:hover svg{transform:translateX(4px);}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;border-radius:var(--radius-pill);
  padding:4px 12px;font-size:13px;font-weight:600;line-height:1.6;
}
.tag-func{background:rgba(255,77,46,.1);color:#C9341A;}
.tag-cat{background:rgba(18,217,195,.14);color:#0B8E82;}
.tag-star{background:rgba(255,197,61,.2);color:#8A6100;}
.tag-dark{background:rgba(255,255,255,.1);color:rgba(255,255,255,.88);}

/* ---------- 内页首屏 ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background:var(--bg-deep) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,11,14,.9),rgba(10,11,14,.96)),
             radial-gradient(720px 340px at 82% 6%,rgba(255,77,46,.26),transparent 68%),
             radial-gradient(520px 260px at 6% 100%,rgba(18,217,195,.16),transparent 70%);
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  opacity:.85;
}
.page-hero .container{position:relative;z-index:2;padding-top:72px;padding-bottom:76px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.55);margin-bottom:22px;}
.breadcrumb a{color:rgba(255,255,255,.72);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{color:rgba(255,255,255,.32);}
.page-hero h1{
  font-size:clamp(34px,5vw,60px);line-height:1.08;letter-spacing:-.02em;
  max-width:16em;margin-bottom:18px;
}
.page-hero .hero-sub{font-size:17px;color:rgba(255,255,255,.78);max-width:44em;margin-bottom:30px;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:36px;}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 28px;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.72);}
.hero-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 8px rgba(18,217,195,.8);}

/* ---------- 指标条 ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-3);}
.metric{
  background:#fff;border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-1);
  border-top:2px solid transparent;transition:box-shadow .2s var(--ease),transform .2s var(--ease);
}
.metric:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.metric .val{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:32px;font-weight:800;color:var(--c-primary);line-height:1.1;letter-spacing:-.02em;}
.metric .lbl{font-size:13px;color:var(--ink-2);margin-top:8px;}

/* ---------- 对比表 ---------- */
.table-shell{
  position:relative;background:#fff;border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:8px;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
table.compare{width:100%;min-width:840px;border-collapse:separate;border-spacing:0;font-size:15px;}
.compare thead th{
  background:var(--bg-deep);color:#fff;font-size:14px;font-weight:700;letter-spacing:.02em;
  padding:18px;text-align:left;white-space:nowrap;vertical-align:middle;
}
.compare thead th:first-child{border-top-left-radius:var(--radius-img);}
.compare thead th:last-child{border-top-right-radius:var(--radius-img);}
.compare thead th .tag{margin-left:8px;}
.compare tbody td{padding:16px 18px;border-bottom:1px solid var(--line);color:var(--ink-3);line-height:1.7;vertical-align:top;}
.compare tbody tr:last-child td{border-bottom:0;}
.compare tbody tr:nth-child(even) td{background:#FCFAF7;}
.compare tbody tr:hover td{background:rgba(255,77,46,.045);}
.compare td:first-child{font-weight:700;color:var(--ink);white-space:nowrap;background:#fff;}
.compare .col-hl{background:rgba(255,77,46,.06)!important;}
.compare td.yes{color:#0E8F79;font-weight:600;}
.compare td.no{color:var(--empty);}
.scroll-hint{display:none;font-size:13px;color:var(--ink-2);margin-top:12px;text-align:right;}
.table-note{font-size:13.5px;color:var(--ink-2);margin-top:16px;line-height:1.75;}

/* ---------- 卡片网格 ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-3);}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-3);}
.card{
  background:#fff;border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  overflow:hidden;position:relative;transition:box-shadow .2s var(--ease),transform .2s var(--ease);
}
.card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  opacity:0;transition:opacity .2s var(--ease);
}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.card:hover::before{opacity:1;}
.card-img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);transition:transform .5s var(--ease);}
.card-media{overflow:hidden;padding:8px 8px 0;}
.card:hover .card-img{transform:scale(1.03);}
.card-body{padding:22px 24px 26px;}
.card-body h3{font-size:20px;margin-bottom:10px;}
.card-body p{color:var(--ink-2);font-size:15.5px;}
.card-wide{grid-column:1 / -1;display:grid;grid-template-columns:1.05fr 1fr;align-items:center;gap:0;}
.card-wide .card-media{padding:8px;}
.card-wide .card-body{padding:32px 34px;}
.card-wide .card-img{aspect-ratio:16/11;}

/* ---------- 场景卡 ---------- */
.scene-card{
  background:#fff;border-radius:var(--radius-card);padding:30px;box-shadow:var(--shadow-1);
  border:1px solid var(--line);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  display:flex;flex-direction:column;gap:12px;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(255,77,46,.35);}
.scene-card .who{font-size:13px;color:var(--ink-2);}
.scene-card h3{font-size:21px;}
.scene-card .result{
  margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);
  font-size:15px;color:var(--c-primary-dark);font-weight:600;
}
.scene-card.offset{margin-top:28px;}

/* ---------- 步骤流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-3);counter-reset:step;}
.step{
  position:relative;background:#fff;border-radius:var(--radius-card);padding:28px 24px 24px;
  box-shadow:var(--shadow-1);border-top:2px solid rgba(18,217,195,.5);
}
.step .idx{
  font-family:var(--font-num);font-size:40px;font-weight:800;line-height:1;letter-spacing:-.03em;
  color:transparent;-webkit-text-stroke:1.4px rgba(18,217,195,.75);margin-bottom:12px;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:15px;color:var(--ink-2);}

/* ---------- FAQ ---------- */
.faq-list{background:#fff;border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:6px 28px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;padding:22px 0;font-size:17px;font-weight:600;color:var(--ink);
  text-align:left;cursor:pointer;line-height:1.5;
}
.faq-q svg{flex:0 0 auto;color:var(--c-primary);transition:transform .2s var(--ease);}
.faq-item.open .faq-q svg{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s var(--ease);}
.faq-item.open .faq-a{max-height:360px;}
.faq-a-inner{padding:0 0 22px;color:var(--ink-2);font-size:16px;line-height:1.85;max-width:72ch;}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;background:var(--bg-deep);color:#fff;border-radius:var(--radius-card);
  padding:52px 48px;overflow:hidden;
  display:grid;grid-template-columns:1.05fr 1fr;gap:var(--space-6);align-items:center;
}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(560px 260px at 88% 110%,rgba(255,77,46,.22),transparent 70%);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(26px,3vw,34px);margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.72);font-size:16px;max-width:42ch;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px;}
.consult-form{
  background:var(--bg-deep-2);border:1px solid var(--line-dark);border-radius:var(--radius-card);
  padding:26px;display:grid;gap:16px;
}
.field{display:grid;gap:8px;}
.field label{font-size:14px;color:rgba(255,255,255,.82);font-weight:600;}
.field input,.field select,.field textarea{
  height:48px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.04);color:#fff;padding:0 14px;width:100%;
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:rgba(255,255,255,.4);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(255,77,46,.22);
}
.field.has-error input,.field.has-error textarea{border-color:var(--err);}
.field-err{font-size:13px;color:#FF8A8D;min-height:18px;}
.form-tip{font-size:14px;color:rgba(255,255,255,.6);min-height:22px;}
.form-tip.ok{color:var(--c-accent);}
.consult-form .btn{width:100%;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-deep);color:#fff;padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1.1fr;gap:var(--space-4);padding-bottom:48px;border-bottom:1px solid var(--line-dark);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col p{font-size:14px;color:rgba(255,255,255,.6);line-height:1.8;max-width:34ch;}
.footer-col ul{display:grid;gap:10px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.65);display:inline-block;transition:color .16s var(--ease),transform .16s var(--ease);}
.footer-col ul a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 26px;font-size:12px;color:rgba(255,255,255,.48);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .45s var(--ease),transform .45s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
  .card:hover,.metric:hover,.scene-card:hover{transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .nav-toggle{display:flex;margin-left:auto;}
  .main-nav{
    position:fixed;top:68px;right:0;width:min(320px,86vw);height:calc(100vh - 68px);
    background:var(--bg-deep-2);border-left:1px solid var(--line-dark);
    padding:20px 24px;transform:translateX(103%);
    transition:transform .28s var(--ease);overflow-y:auto;
  }
  .main-nav.open{transform:none;}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:4px;}
  .main-nav a{display:block;padding:14px 12px;font-size:15.5px;border-radius:8px;}
  .main-nav a::after{left:0;right:auto;bottom:8px;top:8px;width:2px;height:auto;transform:scaleY(0);transform-origin:top;transition:transform .2s var(--ease);}
  .main-nav a:hover::after,.main-nav a.active::after{transform:scaleY(1);}
  .main-nav a.active{background:rgba(255,77,46,.08);}
  .nav-actions{margin-left:0;}
  .nav-actions .btn{display:none;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;padding:44px 34px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .scroll-hint{display:block;}
  .table-shell::after{
    content:"";position:absolute;top:8px;right:8px;bottom:8px;width:44px;
    background:linear-gradient(90deg,rgba(255,255,255,0),#fff);
    border-top-right-radius:12px;border-bottom-right-radius:12px;pointer-events:none;
  }
}
@media (max-width:768px){
  :root{--space-7:64px;--space-6:52px;}
  .container{padding:0 18px;}
  body{font-size:16px;}
  .section{padding:56px 0;}
  .page-hero .container{padding-top:52px;padding-bottom:56px;}
  .page-hero .hero-sub{font-size:16px;}
  .grid-2,.grid-3{grid-template-columns:1fr;}
  .card-wide{grid-template-columns:1fr;}
  .card-wide .card-body{padding:20px 22px 26px;}
  .scene-card.offset{margin-top:0;}
  .steps{grid-template-columns:1fr;}
  .faq-list{padding:4px 20px;}
  .faq-q{font-size:16px;padding:18px 0;}
  .cta-band{padding:32px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:34px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .sec-num{font-size:32px;}
  .section-head{gap:14px;margin-bottom:32px;}
}
@media (max-width:480px){
  .brand-text{font-size:15px;}
  .metrics{grid-template-columns:1fr;}
  .btn{width:100%;}
  .hero-cta{flex-direction:column;}
  .cta-actions{flex-direction:column;}
  .metric .val{font-size:28px;}
  .compare thead th,.compare tbody td{padding:14px;}
}