/* roulang page: index */
:root{
  --bg:#F7F6F2;
  --bg-deep:#0B3B36;
  --bg-deep-2:#062B26;
  --card:#FFFFFF;
  --primary:#0F4A43;
  --primary-2:#14625A;
  --primary-3:#1E7A6E;
  --lime:#C6F24E;
  --amber:#FF7A45;
  --amber-hover:#E9652F;
  --text:#10201D;
  --text-2:#4F625D;
  --meta:#8A9995;
  --line:rgba(11,59,54,.10);
  --line-strong:rgba(11,59,54,.18);
  --radius:16px;
  --radius-sm:12px;
  --shadow-1:0 1px 2px rgba(11,59,54,.04),0 8px 24px -12px rgba(11,59,54,.18);
  --shadow-2:0 14px 34px -14px rgba(11,59,54,.28);
  --s1:4px;--s2:8px;--s3:12px;--s4:16px;--s5:24px;--s6:32px;--s7:48px;--s8:64px;--s9:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary-2);text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--primary)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,.btn:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;box-shadow:none;
}
h1,h2,h3,h4{margin:0;font-weight:800;color:var(--text);letter-spacing:0}
h1{font-size:44px;line-height:1.25}
h2{font-size:32px;line-height:1.3}
h3{font-size:22px;line-height:1.4;font-weight:700}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
.container,.container-lg{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container,.container-lg{max-width:1280px}}
.section{padding:88px 0}
.section-sm{padding:56px 0}
.section-deep{background:var(--bg-deep);color:#E6EFEC}
.section-deep h2,.section-deep h3{color:#F2F7F5}
.section-deep p{color:rgba(230,239,236,.78)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head .sub{margin-top:10px;color:var(--text-2);font-size:15px;max-width:620px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary-2);letter-spacing:.04em;margin-bottom:14px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime)}
.eyebrow.on-deep{color:#B9D6CE}
.link-more{font-size:14px;font-weight:600;color:var(--primary-2);white-space:nowrap;border-bottom:2px solid transparent;padding-bottom:2px}
.link-more:hover{border-bottom-color:var(--lime);color:var(--primary)}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:rgba(247,246,242,.94);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:height .2s ease-out;
}
.nav-shell{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--primary);letter-spacing:.01em}
.brand:hover{color:var(--primary)}
.brand-mark{width:30px;height:30px;flex:0 0 30px;border-radius:10px;background:var(--primary);display:grid;place-items:center}
.brand-mark svg{width:16px;height:16px}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--lime);
  transition:right .2s ease-out;
}
.nav-links a:hover{color:var(--primary)}
.nav-links a:hover::after{right:0}
.nav-links a.active{color:var(--primary);font-weight:700}
.nav-links a.active::before{
  content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--lime);
}
.nav-links a.active::after{right:0;background:var(--lime)}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line-strong);
  background:transparent;color:var(--primary);font-size:18px;line-height:1;align-items:center;justify-content:center;
}
.offcanvas{background:var(--bg)}
.offcanvas-header{border-bottom:1px solid var(--line);padding:20px 24px}
.offcanvas-body{padding:8px 24px 32px}
.drawer-link{
  display:block;padding:16px 0;font-size:16px;font-weight:600;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-link.active{color:var(--primary)}
.drawer-link.active::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--lime);margin-right:10px;vertical-align:middle}

/* ---------- buttons ---------- */
.btn{font-weight:600;border-radius:12px;transition:all .2s ease-out;box-shadow:none}
.btn:active{transform:translateY(1px)}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;background:var(--amber);color:#fff;border:1px solid var(--amber);
  font-size:15px;
}
.btn-brand:hover{background:var(--amber-hover);border-color:var(--amber-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-outline-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;background:transparent;color:var(--primary);
  border:1px solid var(--line-strong);font-size:15px;
}
.btn-outline-brand:hover{border-color:var(--primary);color:var(--primary);background:rgba(15,74,67,.04);transform:translateY(-1px)}
.btn-outline-light-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;background:transparent;color:#EAF3F0;
  border:1px solid rgba(234,243,240,.32);font-size:15px;
}
.btn-outline-light-brand:hover{background:rgba(198,242,78,.14);border-color:var(--lime);color:#fff}
.btn-sm-brand{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 16px;font-size:13px;font-weight:600;border-radius:12px;
  background:var(--primary);color:#fff;border:1px solid var(--primary);
}
.btn-sm-brand:hover{background:var(--primary-2);border-color:var(--primary-2);color:#fff}

/* ---------- badges / tags ---------- */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(15,74,67,.08);color:var(--primary-2);
}
.badge-lime{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;font-size:12px;font-weight:700;
  background:var(--lime);color:#123A34;
}
.badge-ghost{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(255,255,255,.12);color:#DCEDE7;border:1px solid rgba(255,255,255,.18);
}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--bg-deep);color:#EAF3F0;overflow:hidden;padding:80px 0 88px}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(198,242,78,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(198,242,78,.06) 1px,transparent 1px);
  background-size:44px 44px;mask-image:radial-gradient(circle at 78% 32%,rgba(0,0,0,.9),transparent 68%);
  -webkit-mask-image:radial-gradient(circle at 78% 32%,rgba(0,0,0,.9),transparent 68%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{color:#F4FAF8;font-size:44px;line-height:1.25;margin-bottom:20px}
.hero h1 .accent{color:var(--lime)}
.hero-sub{font-size:17px;color:rgba(234,243,240,.8);max-width:520px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-points{display:flex;flex-wrap:wrap;gap:22px;padding-top:26px;border-top:1px solid rgba(255,255,255,.12)}
.hero-point{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(234,243,240,.82)}
.hero-point svg{width:16px;height:16px;color:var(--lime);flex:0 0 16px}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius);
  border:1px solid rgba(255,255,255,.14);
}
.hero-float{
  position:absolute;left:-18px;bottom:26px;background:var(--card);color:var(--text);
  border-radius:var(--radius-sm);padding:14px 18px;box-shadow:var(--shadow-2);
  display:flex;align-items:center;gap:12px;
}
.hero-float .dotline{display:flex;flex-direction:column;gap:4px}
.hero-float strong{font-size:14px;font-weight:700;color:var(--primary)}
.hero-float span{font-size:12px;color:var(--meta)}
.hero-badgetop{position:absolute;right:18px;top:18px}

/* ---------- guarantee strip ---------- */
.strip{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#FBFBF9;
}
.strip-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.strip-item{display:flex;align-items:center;gap:12px;padding:26px 24px;border-right:1px solid var(--line)}
.strip-item:last-child{border-right:0}
.strip-item svg{width:20px;height:20px;color:var(--primary-3);flex:0 0 20px}
.strip-item span{font-size:14px;font-weight:600;color:var(--text-2)}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.u-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-1);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
  display:flex;flex-direction:column;height:100%;
}
.u-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--line-strong)}
.u-cover{position:relative;overflow:hidden;background:#EDEFEA}
.u-cover img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .22s ease-out}
.u-card:hover .u-cover img{transform:scale(1.03)}
.u-cover .badge-lime{position:absolute;left:12px;top:12px}
.u-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.u-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.u-desc{font-size:13px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.u-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--line);
}
.u-price{font-size:15px;font-weight:700;color:var(--primary);letter-spacing:.01em}
.u-note{font-size:12px;color:var(--meta)}

/* ---------- feature rows ---------- */
.feature-split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.feature-split img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow-1)}
.feat-list{display:flex;flex-direction:column;gap:18px;margin-top:28px}
.feat-item{display:flex;gap:14px;align-items:flex-start}
.feat-num{
  flex:0 0 34px;width:34px;height:34px;border-radius:10px;background:rgba(15,74,67,.08);
  color:var(--primary);font-size:13px;font-weight:700;display:grid;place-items:center;
}
.feat-item h4{font-size:16px;font-weight:700;margin-bottom:4px}
.feat-item p{font-size:14px;color:var(--text-2);margin:0;line-height:1.8}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:34px}
.timeline::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:1px;background:var(--line-strong)}
.tl-item{position:relative;padding-bottom:32px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-29px;top:8px;width:10px;height:10px;border-radius:50%;
  background:var(--lime);border:2px solid var(--bg);
}
.tl-item h3{font-size:17px;margin-bottom:6px}
.tl-item p{font-size:14px;color:var(--text-2);margin:0}
.tl-index{font-size:12px;font-weight:700;color:var(--primary-3);letter-spacing:.08em;display:block;margin-bottom:4px}

/* ---------- testimonials ---------- */
.quote-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;height:100%;box-shadow:var(--shadow-1);
}
.quote-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{
  width:44px;height:44px;border-radius:50%;overflow:hidden;flex:0 0 44px;background:#E7EBE6;
}
.avatar img{width:100%;height:100%;object-fit:cover}
.quote-name{font-size:14px;font-weight:700;color:var(--text)}
.quote-date{font-size:12px;color:var(--meta)}
.stars{display:flex;gap:3px;margin-bottom:12px}
.stars svg{width:14px;height:14px;color:var(--lime)}
.quote-card p{font-size:14px;color:var(--text-2);line-height:1.8;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.carousel-control-prev,.carousel-control-next{
  position:static;width:38px;height:38px;border-radius:50%;border:1px solid var(--line-strong);
  color:var(--primary);opacity:1;display:grid;place-items:center;background:transparent;
}
.carousel-control-prev:hover,.carousel-control-next:hover{border-color:var(--primary);background:rgba(15,74,67,.05)}
.carousel-control-prev svg,.carousel-control-next svg{width:16px;height:16px}
.carousel-nav{display:flex;gap:10px}
.carousel-indicators{position:static;margin:28px 0 0;justify-content:center}
.carousel-indicators [data-bs-target]{
  width:26px;height:3px;border-radius:999px;background:rgba(11,59,54,.18);border:0;opacity:1;
  margin:0 4px;transition:background .2s ease-out;
}
.carousel-indicators .active{background:var(--primary-3)}

/* ---------- cta band ---------- */
.cta-band{background:var(--bg-deep);color:#EAF3F0;padding:80px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-inner h2{color:#F4FAF8;max-width:620px;margin-bottom:12px}
.cta-inner p{color:rgba(234,243,240,.75);margin:0;max-width:560px}
.cta-badge-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}

/* ---------- cms list ---------- */
.cms-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;height:100%;display:flex;flex-direction:column;gap:12px;
  box-shadow:var(--shadow-1);transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.cms-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.cms-card .cms-title{
  font-size:17px;font-weight:700;line-height:1.5;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-card a.cms-title:hover{color:var(--primary)}
.cms-card .cms-sum{
  font-size:14px;color:var(--text-2);line-height:1.8;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--line);font-size:12px;color:var(--meta);
}
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--radius);background:#FBFBF9;
  padding:56px 24px;text-align:center;
}
.empty-state svg{width:34px;height:34px;color:var(--primary-3);margin-bottom:14px}
.empty-state p{font-size:14px;color:var(--text-2);margin-bottom:18px}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.accordion-item{background:transparent;border:0;border-top:1px solid var(--line)}
.accordion-item:last-child{border-bottom:1px solid var(--line)}
.accordion-button{
  position:relative;background:transparent;box-shadow:none;
  padding:22px 40px 22px 26px;font-size:16px;font-weight:700;color:var(--text);line-height:1.6;
}
.accordion-button::before{
  content:"";position:absolute;left:0;top:30px;width:8px;height:8px;border-radius:2px;background:var(--lime);
}
.accordion-button::after{
  content:"+";background-image:none;width:auto;height:auto;
  font-size:20px;font-weight:400;line-height:1;color:var(--primary-3);
  position:absolute;right:8px;top:22px;transition:transform .2s ease-out;
}
.accordion-button:not(.collapsed){color:var(--primary);background:transparent}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.accordion-button:hover{color:var(--primary-2)}
.accordion-body{
  background:var(--bg);border-radius:var(--radius-sm);margin:0 0 20px 0;padding:20px;
  font-size:14px;color:var(--text-2);line-height:1.9;
}

/* ---------- form ---------- */
.form-label{font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:8px}
.form-control{
  height:48px;border-radius:var(--radius-sm);border:1px solid var(--line-strong);
  background:#fff;color:var(--text);font-size:15px;padding:0 14px;box-shadow:none;
}
.form-control:focus{border-color:var(--primary);box-shadow:none;outline:2px solid var(--primary);outline-offset:1px}
.form-hint{font-size:12px;color:var(--meta);margin-top:8px}
.form-shell{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px;box-shadow:var(--shadow-1);
}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-deep-2);color:rgba(230,239,236,.72);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#F2F7F5;font-weight:800;font-size:16px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--lime)}
.footer-brand .brand-mark svg{color:#0B3B36}
.footer-desc{font-size:14px;line-height:1.85;max-width:320px}
.footer-title{font-size:14px;font-weight:700;color:#F2F7F5;margin-bottom:18px}
.footer-links li{margin-bottom:2px}
.footer-links a{font-size:14px;color:rgba(230,239,236,.72);line-height:1.9;display:inline-block;border-bottom:2px solid transparent}
.footer-links a:hover{color:var(--lime);border-bottom-color:var(--lime)}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;font-size:13px;color:rgba(230,239,236,.55);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  h1{font-size:40px}
  .hero h1{font-size:40px}
  .hero-grid{gap:40px}
}
@media (max-width:992px){
  .nav-links,.nav-cta .btn-outline-brand{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:64px 0}
  .hero{padding:64px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:2}
  .hero-float{left:12px;bottom:12px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .feature-split{grid-template-columns:1fr;gap:32px}
  .strip-grid{grid-template-columns:repeat(2,1fr)}
  .strip-item{border-bottom:1px solid var(--line)}
  .strip-item:nth-child(2n){border-right:0}
  .strip-item:nth-child(n+3){border-bottom:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:64px 0}
}
@media (max-width:768px){
  body{font-size:15px}
  h1{font-size:30px}
  .hero h1{font-size:30px}
  h2{font-size:24px}
  h3{font-size:19px}
  .section{padding:56px 0}
  .section-sm{padding:44px 0}
  .container,.container-lg{padding-left:16px;padding-right:16px}
  .card-grid{grid-template-columns:1fr;gap:16px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .hero-actions .btn-brand,.hero-actions .btn-outline-brand{width:100%}
  .form-shell{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .carousel-item .col-12+.col-12{display:none}
}
@media (max-width:576px){
  .hero-points{gap:14px}
  .hero-float{position:static;margin-top:14px}
  .strip-item{padding:18px 16px}
}

/* roulang page: category1 */
:root{
  --bg:#F7F6F2;
  --card:#FFFFFF;
  --deep:#0B3B36;
  --deep-2:#062B26;
  --primary:#0F4A43;
  --primary-2:#14625A;
  --primary-3:#1E7A6E;
  --lime:#C6F24E;
  --amber:#FF7A45;
  --amber-h:#E9652F;
  --ink:#10201D;
  --ink-2:#4F625D;
  --meta:#8A9995;
  --line:rgba(11,59,54,.10);
  --mask:rgba(6,43,38,.55);
  --radius:16px;
  --radius-sm:12px;
  --shadow-1:0 1px 2px rgba(11,59,54,.04),0 8px 24px -12px rgba(11,59,54,.18);
  --shadow-2:0 14px 34px -14px rgba(11,59,54,.28);
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-num:"Inter","DIN Alternate","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--primary-3);}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 18px;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--ink);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.container{max-width:1280px;}}

/* ---------- 按钮 ---------- */
.btn-amber,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn-amber{background:var(--amber);color:#fff;box-shadow:0 8px 20px -12px rgba(233,101,47,.9);}
.btn-amber:hover{background:var(--amber-h);color:#fff;transform:translateY(-1px);}
.btn-amber:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--primary);border-color:rgba(15,74,67,.28);}
.btn-ghost:hover{background:rgba(15,74,67,.06);color:var(--primary-2);border-color:rgba(15,74,67,.45);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-line{background:transparent;color:#EAF2F0;border-color:rgba(234,242,240,.4);}
.btn-line:hover{background:rgba(234,242,240,.10);color:#fff;border-color:rgba(234,242,240,.7);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:var(--radius-sm);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,246,242,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out;
}
.site-header.scrolled{box-shadow:0 6px 20px -16px rgba(11,59,54,.4);}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height .2s ease-out;}
.site-header.scrolled .header-inner{height:60px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);flex-shrink:0;}
.brand:hover{color:var(--primary);}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--lime);
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
}
.brand-mark svg{width:18px;height:18px;}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.2px;white-space:nowrap;line-height:1.2;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-links a{
  position:relative;
  font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--lime);transition:width .2s ease-out;
}
.nav-links a:hover{color:var(--primary);}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--ink);font-weight:700;}
.nav-links a.active::before{
  content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--lime);
}
.nav-links a.active::after{width:100%;}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fff;color:var(--primary);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--primary);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.offcanvas.mobile-drawer{background:var(--bg);width:300px;}
.mobile-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:20px 24px;}
.mobile-drawer .offcanvas-body{padding:8px 24px 32px;}
.mobile-drawer .drawer-brand{font-size:16px;font-weight:800;}
.drawer-links a{
  display:block;padding:16px 0;font-size:16px;color:var(--ink-2);
  border-bottom:1px solid var(--line);font-weight:500;
}
.drawer-links a.active{color:var(--primary);font-weight:700;}
.drawer-links a:hover{color:var(--primary);}
.drawer-cta{margin-top:24px;width:100%;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  background:var(--deep);
  color:#EAF2F0;
  padding:52px 0 76px;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(198,242,78,.18) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.5;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(234,242,240,.66);margin-bottom:26px;}
.crumb a{color:rgba(234,242,240,.8);}
.crumb a:hover{color:var(--lime);}
.crumb .sep{color:rgba(234,242,240,.35);}
.crumb .cur{color:#fff;}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:48px;align-items:center;}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(198,242,78,.14);color:var(--lime);
  font-size:13px;font-weight:600;margin-bottom:22px;
}
.hero-kicker i{width:6px;height:6px;border-radius:50%;background:var(--lime);display:inline-block;}
.page-hero h1{
  color:#fff;font-size:44px;line-height:1.25;font-weight:800;margin-bottom:20px;
}
.hero-lead{font-size:17px;color:rgba(234,242,240,.82);max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-points{display:flex;flex-wrap:wrap;gap:22px;font-size:14px;color:rgba(234,242,240,.76);}
.hero-points span{display:inline-flex;align-items:center;gap:8px;}
.hero-points span::before{
  content:"";width:5px;height:5px;border-radius:50%;background:var(--lime);
}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius);
  box-shadow:0 24px 50px -26px rgba(0,0,0,.6);
}
.hero-chip{
  position:absolute;left:-14px;bottom:22px;
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:999px;
  background:var(--lime);color:var(--deep-2);
  font-size:13px;font-weight:700;
  box-shadow:0 12px 26px -14px rgba(0,0,0,.5);
}

/* ---------- 锚点标签行 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;}
.tag-row a{
  display:inline-flex;align-items:center;
  padding:7px 16px;border-radius:999px;
  border:1px solid rgba(234,242,240,.28);
  color:rgba(234,242,240,.86);font-size:13.5px;
  transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.tag-row a:hover{background:var(--lime);border-color:var(--lime);color:var(--deep-2);}

/* ---------- 通用分区 ---------- */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section.alt{background:#FFFFFF;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.4px;
  color:var(--primary-3);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:32px;margin-bottom:12px;}
.section-head p{color:var(--ink-2);max-width:640px;margin:0;}
.section-head .head-link{
  flex-shrink:0;font-size:14.5px;font-weight:600;color:var(--primary);
  border-bottom:2px solid var(--lime);padding-bottom:2px;
}
.section-head .head-link:hover{color:var(--primary-3);}

/* ---------- 卡片网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card-item{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.card-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(15,74,67,.18);}
.card-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:#E7EAE6;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out;}
.card-item:hover .card-media img{transform:scale(1.03);}
.card-badge{
  position:absolute;top:12px;left:12px;
  padding:4px 10px;border-radius:999px;
  background:rgba(198,242,78,.92);color:var(--deep-2);
  font-size:12px;font-weight:700;line-height:1.6;
}
.card-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:19px;line-height:1.4;margin-bottom:12px;}
.card-points{margin-bottom:18px;}
.card-points li{
  position:relative;padding-left:16px;font-size:14px;color:var(--ink-2);line-height:1.8;
}
.card-points li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:2px;background:var(--lime);
}
.card-foot{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.card-status{font-size:13px;color:var(--meta);}
.card-status b{color:var(--primary);font-weight:700;font-family:var(--font-num);}

/* ---------- 准备清单 ---------- */
.prep-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.prep-item{padding:32px 26px;border-right:1px solid var(--line);}
.prep-item:last-child{border-right:0;}
.prep-num{
  font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--primary-3);
  line-height:1;margin-bottom:16px;letter-spacing:-.5px;
}
.prep-item h3{font-size:17px;margin-bottom:10px;}
.prep-item p{font-size:14px;color:var(--ink-2);margin:0;line-height:1.8;}

/* ---------- 图文横排 ---------- */
.scene-row{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  padding:34px 0;
}
.scene-row + .scene-row{border-top:1px solid var(--line);}
.scene-row.reverse .scene-media{order:2;}
.scene-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--radius);
  box-shadow:var(--shadow-1);
}
.scene-content h3{font-size:23px;margin-bottom:14px;}
.scene-content p{color:var(--ink-2);margin-bottom:16px;}
.scene-list li{
  position:relative;padding-left:18px;font-size:15px;color:var(--ink-2);line-height:1.9;
}
.scene-list li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--primary-3);
}
.scene-index{
  display:inline-block;font-family:var(--font-num);font-size:13px;font-weight:700;
  letter-spacing:1.5px;color:var(--primary-3);margin-bottom:12px;
}

/* ---------- 保障条 ---------- */
.assure-bar{
  border:1px solid var(--line);border-radius:var(--radius);background:#fff;
  display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden;
}
.assure-item{
  padding:26px 22px;border-right:1px solid var(--line);
  display:flex;align-items:center;gap:14px;
}
.assure-item:last-child{border-right:0;}
.assure-icon{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  background:rgba(198,242,78,.28);
  display:inline-flex;align-items:center;justify-content:center;
}
.assure-icon svg{width:19px;height:19px;stroke:var(--primary);fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.assure-item span{font-size:14.5px;font-weight:600;color:var(--ink);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--line);border-radius:0!important;
}
.accordion-item:first-of-type{border-top:1px solid var(--line);}
.accordion-button{
  background:transparent;border:0;box-shadow:none!important;
  padding:24px 8px 24px 30px;font-size:17px;font-weight:600;color:var(--ink);
  line-height:1.6;position:relative;border-radius:0!important;
}
.accordion-button:hover{color:var(--primary);}
.accordion-button:not(.collapsed){color:var(--primary);background:transparent;}
.accordion-button::before{
  content:"";position:absolute;left:6px;top:50%;transform:translateY(-50%);
  width:8px;height:8px;border-radius:2px;background:var(--lime);
}
.accordion-button::after{
  content:"+";background-image:none;transform:none;
  width:26px;height:26px;flex-shrink:0;margin-left:auto;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:400;line-height:1;color:var(--primary-3);
  border:1px solid var(--line);border-radius:999px;
}
.accordion-button:not(.collapsed)::after{content:"−";transform:none;color:var(--primary);}
.accordion-body{
  padding:4px 34px 26px 30px;color:var(--ink-2);font-size:15px;line-height:1.9;
  background:var(--bg);border-radius:var(--radius-sm);margin-bottom:8px;
}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  background:var(--deep-2);color:#EAF2F0;position:relative;overflow:hidden;
  padding:88px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(198,242,78,.06) 1px,transparent 1px);
  background-size:100% 34px;pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-inner h2{color:#fff;font-size:30px;margin-bottom:12px;}
.cta-inner p{color:rgba(234,242,240,.78);margin:0;max-width:600px;}
.cta-badge{
  display:inline-flex;align-items:center;
  padding:5px 14px;border-radius:999px;
  background:rgba(198,242,78,.16);color:var(--lime);
  font-size:12.5px;font-weight:600;margin-bottom:16px;
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep-2);color:rgba(234,242,240,.75);padding:72px 0 28px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid rgba(234,242,240,.14);
}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;color:#fff;margin-bottom:16px;
}
.footer-brand .brand-mark{background:var(--lime);}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(234,242,240,.66);margin:0;max-width:340px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:rgba(234,242,240,.72);line-height:1.9;}
.footer-links a:hover{color:var(--lime);}
.footer-bottom{
  padding-top:24px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(234,242,240,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .page-hero h1{font-size:38px;}
  .prep-item{padding:28px 20px;}
}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{gap:16px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-media{order:2;}
  .page-hero{padding:40px 0 60px;}
  .page-hero h1{font-size:32px;}
  .hero-lead{font-size:16px;}
  .section{padding:72px 0;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .prep-grid{grid-template-columns:repeat(2,1fr);}
  .prep-item:nth-child(2){border-right:0;}
  .prep-item:nth-child(1),.prep-item:nth-child(2){border-bottom:1px solid var(--line);}
  .assure-bar{grid-template-columns:repeat(2,1fr);}
  .assure-item:nth-child(2){border-right:0;}
  .assure-item:nth-child(1),.assure-item:nth-child(2){border-bottom:1px solid var(--line);}
  .scene-row{grid-template-columns:1fr;gap:26px;}
  .scene-row.reverse .scene-media{order:0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .container{padding:0 16px;}
  .page-hero h1{font-size:30px;}
  .section-head h2{font-size:24px;}
  .section{padding:56px 0;}
  .grid-3{grid-template-columns:1fr;}
  .prep-grid{grid-template-columns:1fr;}
  .prep-item{border-right:0;border-bottom:1px solid var(--line);}
  .prep-item:last-child{border-bottom:0;}
  .assure-bar{grid-template-columns:1fr;}
  .assure-item{border-right:0;border-bottom:1px solid var(--line);}
  .assure-item:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-inner h2{font-size:24px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .hero-chip{left:12px;bottom:12px;}
  .card-body{padding:20px 18px 18px;}
  .cta-band{padding:60px 0;}
}
@media (max-width:575.98px){
  .brand-text{font-size:15px;}
  .btn-amber,.btn-ghost,.btn-line{width:100%;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn-amber,.hero-actions .btn-ghost{width:100%;}
}

/* roulang page: article */
:root{
  --bg:#F7F6F2;
  --deep:#0B3B36;
  --deep-2:#062B26;
  --brand:#0F4A43;
  --brand-2:#14625A;
  --brand-3:#1E7A6E;
  --lime:#C6F24E;
  --accent:#FF7A45;
  --accent-hover:#E9652F;
  --text:#10201D;
  --text-2:#4F625D;
  --meta:#8A9995;
  --line:rgba(11,59,54,.10);
  --card:#FFFFFF;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,59,54,.04), 0 8px 24px -12px rgba(11,59,54,.18);
  --sh-2:0 14px 34px -14px rgba(11,59,54,.28);
  --t:200ms ease-out;
  --cta:#D64545;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-2);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand-3)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
:focus-visible{outline:2px solid var(--brand-3);outline-offset:2px;border-radius:4px}

/* 容器 */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container{max-width:1280px}}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,246,242,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:32px;height:72px;transition:height var(--t)}
.site-header.scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--lime);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:19px;height:19px;display:block}
.brand-text{
  font-size:17px;font-weight:800;letter-spacing:.2px;color:var(--deep);
  white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:8px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform var(--t);
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--deep);font-weight:700}
.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active::before{
  content:"";position:absolute;left:-12px;top:50%;width:6px;height:6px;
  border-radius:50%;background:var(--lime);transform:translateY(-50%);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:transparent;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:17px;height:2px;background:var(--deep);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:17px;height:2px;background:var(--deep);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 按钮 */
.btn-cta,.btn-brand,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background var(--t),color var(--t),transform var(--t),box-shadow var(--t),border-color var(--t);
}
.btn-cta{background:var(--accent);color:#fff}
.btn-cta:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(233,101,47,.85)}
.btn-cta:active{transform:translateY(1px)}
.btn-brand{background:var(--brand);color:#fff}
.btn-brand:hover{background:var(--brand-2);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-brand:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--deep);border-color:rgba(11,59,54,.22)}
.btn-ghost:hover{border-color:var(--brand-2);color:var(--brand-2);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}

/* 移动抽屉 */
.mobile-drawer{background:var(--bg);width:296px}
.mobile-drawer .offcanvas-header{
  padding:20px 22px;border-bottom:1px solid var(--line);align-items:center;
}
.drawer-title{font-size:16px;font-weight:800;color:var(--deep)}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:transparent;
  font-size:20px;line-height:1;color:var(--text-2);cursor:pointer;
}
.mobile-drawer .offcanvas-body{padding:10px 0 26px;display:flex;flex-direction:column}
.mobile-drawer .offcanvas-body a{
  padding:15px 22px;font-size:15px;font-weight:500;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.mobile-drawer .offcanvas-body a:hover{color:var(--deep);background:#fff}
.mobile-drawer .drawer-cta{
  margin:20px 22px 0;border:0;border-radius:var(--r-btn);background:var(--accent);color:#fff !important;
  text-align:center;font-weight:600;padding:13px 18px;
}
.mobile-drawer .drawer-cta:hover{background:var(--accent-hover)}

/* 文章头部 */
.article-head{
  position:relative;background:var(--deep);color:#EAF2EF;overflow:hidden;
  padding:64px 0 72px;
}
.article-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(198,242,78,.22) 1px, transparent 1px);
  background-size:26px 26px;opacity:.5;
}
.article-head .container{position:relative;z-index:1}
.breadcrumb-nav{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:rgba(234,242,239,.66);margin-bottom:26px}
.breadcrumb-nav a{color:rgba(234,242,239,.86);border-bottom:1px solid transparent}
.breadcrumb-nav a:hover{color:var(--lime);border-bottom-color:var(--lime)}
.breadcrumb-nav .sep{color:rgba(234,242,239,.38)}
.breadcrumb-nav .current{color:rgba(234,242,239,.62)}
.badge-chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.2px;
  background:rgba(198,242,78,.16);color:var(--lime);border:1px solid rgba(198,242,78,.32);
}
.badge-chip.on-light{background:rgba(15,74,67,.07);color:var(--brand);border-color:rgba(15,74,67,.12)}
.article-head h1{
  margin:20px 0 22px;font-size:44px;line-height:1.25;font-weight:800;color:#FFFFFF;
  max-width:960px;letter-spacing:-.2px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13px;color:rgba(234,242,239,.72);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(198,242,78,.7)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}

/* 正文区 */
.article-main{padding:64px 0 88px}
.article-wrap{max-width:820px;margin:0 auto}
.article-cover{
  margin:0 0 40px;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
}
.article-cover img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
}
.article-body{font-size:17px;line-height:1.9;color:var(--text-2)}
.article-body p{margin:0 0 20px}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  position:relative;font-size:26px;line-height:1.42;font-weight:700;color:var(--text);
  margin:46px 0 18px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:999px;background:var(--lime);
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:700;color:var(--text);margin:32px 0 12px}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:22px}
.article-body li{margin-bottom:9px}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:#F7F6F2;border-left:3px solid var(--brand-2);
  border-radius:0 12px 12px 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:26px auto}
.article-body figure{margin:26px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--meta);margin-top:10px}
.article-body a{color:var(--brand-3);border-bottom:1px solid rgba(30,122,110,.32)}
.article-body a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left}
.article-body th{color:var(--text);font-weight:600;background:#F7F6F2}
.article-body strong{color:var(--text);font-weight:600}

.empty-state{
  text-align:center;padding:64px 24px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
}
.empty-state .empty-icon{
  width:54px;height:54px;margin:0 auto 18px;border-radius:16px;background:#F1F0EA;
  display:flex;align-items:center;justify-content:center;
}
.empty-state .empty-icon svg{width:26px;height:26px}
.empty-state h2{font-size:24px;margin:0 0 12px;padding:0;color:var(--text)}
.empty-state h2::before{display:none}
.empty-state p{max-width:460px;margin:0 auto 22px;color:var(--text-2)}

.article-return{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;
  margin-top:56px;padding-top:32px;border-top:1px solid var(--line);
}

/* 相关推荐 */
.rec-section{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:80px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:32px;line-height:1.3;font-weight:800;color:var(--deep);letter-spacing:-.2px}
.section-head p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:560px}
.section-link{font-size:14px;font-weight:600;color:var(--brand-2);white-space:nowrap;border-bottom:2px solid transparent;padding-bottom:2px}
.section-link:hover{color:var(--brand);border-bottom-color:var(--lime)}
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rec-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,74,67,.16);color:inherit}
.rec-thumb{position:relative;overflow:hidden}
.rec-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 220ms ease-out}
.rec-card:hover .rec-thumb img{transform:scale(1.03)}
.rec-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.rec-body h3{font-size:18px;line-height:1.5;font-weight:700;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-body p{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--meta)}

/* CTA 通栏 */
.cta-band{background:var(--deep-2);color:#EAF2EF;padding:88px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-inner h2{font-size:30px;line-height:1.35;font-weight:800;color:#fff;max-width:640px}
.cta-inner p{margin-top:12px;font-size:15px;color:rgba(234,242,239,.74);max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-ghost{color:#FFFFFF;border-color:rgba(255,255,255,.34)}
.cta-band .btn-ghost:hover{color:var(--lime);border-color:var(--lime)}

/* 页脚 */
.site-footer{background:var(--deep-2);color:rgba(234,242,239,.72);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff}
.footer-brand .brand-mark{width:30px;height:30px;border-radius:9px}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(234,242,239,.62);max-width:320px}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{line-height:1.9;margin-bottom:6px}
.footer-links a{font-size:14px;color:rgba(234,242,239,.68)}
.footer-links a:hover{color:var(--lime)}
.footer-bottom{
  border-top:1px solid rgba(234,242,239,.14);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(234,242,239,.52);
}

/* 响应式 */
@media (max-width:1200px){
  .nav-links{gap:20px}
  .nav-links a{font-size:14px}
}
@media (max-width:992px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-cta{display:none}
  .article-head{padding:44px 0 52px}
  .article-head h1{font-size:32px}
  .article-main{padding:48px 0 64px}
  .article-body h2{font-size:24px}
  .rec-grid{grid-template-columns:repeat(2,1fr)}
  .section-head h2{font-size:26px}
  .cta-band{padding:64px 0}
  .cta-inner h2{font-size:25px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .header-inner{height:64px;gap:16px}
  .brand-text{font-size:15px}
  .article-head{padding:36px 0 44px}
  .article-head h1{font-size:27px}
  .article-main{padding:40px 0 56px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px;margin:34px 0 14px}
  .article-body h3{font-size:18px}
  .rec-section{padding:56px 0}
  .rec-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  .article-return .btn-cta,.article-return .btn-ghost{width:100%}
  .cta-band{padding:56px 0}
  .cta-actions{width:100%}
  .cta-actions .btn-cta,.cta-actions .btn-ghost{width:100%}
  .site-footer{padding:52px 0 0}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
}
@media (max-width:520px){
  .article-head h1{font-size:24px}
  .article-meta{font-size:12px;gap:10px}
  .article-cover{margin-bottom:28px}
}

/* roulang page: category2 */
:root{
  --bg:#F7F6F2;
  --deep:#0B3B36;
  --deeper:#062B26;
  --card:#FFFFFF;
  --primary:#0F4A43;
  --primary-2:#14625A;
  --primary-3:#1E7A6E;
  --lime:#C6F24E;
  --amber:#FF7A45;
  --amber-hover:#E9652F;
  --text:#10201D;
  --text-2:#4F625D;
  --meta:#8A9995;
  --line:rgba(11,59,54,.10);
  --overlay:rgba(6,43,38,.55);
  --danger:#D64545;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,59,54,.04), 0 8px 24px -12px rgba(11,59,54,.18);
  --sh-2:0 14px 34px -14px rgba(11,59,54,.28);
  --ease:cubic-bezier(.4,0,.2,1);
  --s1:4px; --s2:8px; --s3:12px; --s4:16px; --s5:24px; --s6:32px; --s7:48px; --s8:64px; --s9:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary-2);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--primary);}
p{margin:0 0 18px;color:var(--text-2);}
h1,h2,h3,h4{margin:0 0 14px;color:var(--text);font-weight:700;letter-spacing:0;}
h1{font-size:44px;line-height:1.25;font-weight:800;}
h2{font-size:32px;line-height:1.35;}
h3{font-size:22px;line-height:1.5;font-weight:700;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
@media (min-width:1400px){.container{max-width:1280px;}}
.btn{--bs-btn-border-radius:12px;}
.btn:focus,.btn:active:focus,.form-control:focus{box-shadow:none;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,246,242,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:72px;
  transition:height .22s var(--ease);
}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;color:var(--text);letter-spacing:.2px;
  white-space:nowrap;
}
.brand:hover{color:var(--primary);}
.brand-mark{
  width:30px;height:30px;border-radius:9px;background:var(--lime);
  display:grid;place-items:center;flex:0 0 auto;
}
.brand-mark svg{width:17px;height:17px;}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;font-weight:500;color:var(--text-2);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-links a:hover{color:var(--primary);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--primary);font-weight:700;}
.nav-links a.active::before{
  content:"";position:absolute;left:-12px;top:50%;width:6px;height:6px;border-radius:50%;
  background:var(--lime);transform:translateY(-50%);
}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:transparent;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--primary-3);background:#fff;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--primary);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- buttons ---------- */
.btn-main,.btn-line,.btn-lime{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1.5px solid transparent;text-decoration:none;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-main{background:var(--amber);color:#fff;border-color:var(--amber);}
.btn-main:hover{background:var(--amber-hover);border-color:var(--amber-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-main:active{transform:translateY(1px);box-shadow:none;}
.btn-line{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-line:hover{background:#fff;color:var(--primary);transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-line:active{transform:translateY(1px);}
.btn-lime{background:var(--lime);color:var(--deep);border-color:var(--lime);}
.btn-lime:hover{background:#d5f76f;border-color:#d5f76f;color:var(--deep);transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- badges ---------- */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-pill);
  background:rgba(198,242,78,.35);color:var(--primary);
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge-plain{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:var(--r-pill);
  background:rgba(11,59,54,.06);color:var(--text-2);
  font-size:12px;font-weight:500;line-height:1.6;
}
.badge-onDark{background:rgba(198,242,78,.18);color:#EAF9C0;}

/* ---------- offcanvas drawer ---------- */
.drawer{background:var(--bg);width:320px;border-left:1px solid var(--line);}
.drawer .offcanvas-header{padding:20px 24px;border-bottom:1px solid var(--line);}
.drawer .offcanvas-body{padding:8px 24px 32px;}
.drawer-close{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:transparent;
  color:var(--primary);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-close:hover{border-color:var(--primary-3);}
.drawer-nav{display:flex;flex-direction:column;margin-bottom:24px;}
.drawer-nav a{
  padding:15px 0;border-bottom:1px solid var(--line);
  font-size:16px;font-weight:500;color:var(--text-2);
}
.drawer-nav a:hover{color:var(--primary);}
.drawer-nav a.active{color:var(--primary);font-weight:700;}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-white{background:var(--card);}
.section-deep{background:var(--deep);color:#fff;}
.section-deep h2,.section-deep h3{color:#fff;}
.section-deep p{color:rgba(255,255,255,.75);}
.sec-head{max-width:720px;margin-bottom:48px;}
.sec-head p{font-size:16px;margin-bottom:0;}
.sec-head-inline{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:44px;
}
.sec-head-inline .sec-head{margin-bottom:0;}
.sec-link{font-size:15px;font-weight:600;color:var(--primary);border-bottom:2px solid var(--lime);padding-bottom:2px;}
.sec-link:hover{color:var(--primary-2);}
section[id]{scroll-margin-top:96px;}

/* ---------- breadcrumb ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.68);}
.crumb a{color:rgba(255,255,255,.88);}
.crumb a:hover{color:var(--lime);}
.crumb .sep{opacity:.5;}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;
  background:var(--deeper) url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  color:#fff;
  padding:64px 0 88px;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;background:rgba(6,43,38,.74);
}
.cat-hero .container{position:relative;z-index:1;}
.cat-hero h1{color:#fff;margin:22px 0 18px;max-width:820px;}
.cat-hero .lead-text{
  max-width:720px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.82);margin-bottom:26px;
}
.anchor-tags{display:flex;flex-wrap:wrap;gap:10px;}
.anchor-tags a{
  display:inline-flex;align-items:center;
  padding:6px 16px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.3);color:#fff;font-size:13px;font-weight:500;
  transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.anchor-tags a:hover{background:var(--lime);border-color:var(--lime);color:var(--deep);}

/* ---------- feature rows ---------- */
.feature-list{border-top:1px solid var(--line);}
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:44px 0;border-bottom:1px solid var(--line);
}
.feature-row.reverse .feature-media{order:2;}
.feature-media{margin:0;}
.feature-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-img);
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.feature-row:hover .feature-media img{transform:scale(1.02);box-shadow:var(--sh-2);}
.feature-body h3{margin:16px 0 12px;}
.feature-body p{font-size:15.5px;}
.tick-list{margin-top:6px;}
.tick-list li{
  position:relative;padding-left:24px;margin-bottom:10px;
  font-size:15px;color:var(--text-2);
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:11px;width:9px;height:9px;border-radius:3px;
  background:var(--lime);
}

/* ---------- plain cards ---------- */
.plain-card{
  height:100%;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px 28px;box-shadow:none;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.plain-card:hover{transform:translateY(-2px);box-shadow:var(--sh-1);border-color:rgba(30,122,110,.4);}
.plain-card h3{font-size:19px;margin:18px 0 12px;}
.plain-card p{font-size:15px;margin-bottom:14px;}
.icon-box{
  width:46px;height:46px;border-radius:14px;
  background:rgba(198,242,78,.32);
  display:grid;place-items:center;
}
.icon-box svg{width:22px;height:22px;stroke:var(--primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- deep checklist ---------- */
.check-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:1px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-card);overflow:hidden;
}
.check-grid li{background:var(--deep);padding:30px 28px;}
.check-grid .num{
  display:block;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--lime);margin-bottom:10px;
  font-family:"Inter","DIN Alternate",ui-monospace,monospace;
}
.check-grid h3{font-size:18px;margin-bottom:10px;}
.check-grid p{font-size:14.5px;margin-bottom:0;color:rgba(255,255,255,.7);}

/* ---------- FAQ ---------- */
.accordion.c-accordion{--bs-accordion-bg:transparent;--bs-accordion-border-width:0;--bs-accordion-border-radius:0;
  --bs-accordion-btn-padding-x:26px;--bs-accordion-btn-padding-y:22px;--bs-accordion-body-padding-x:0;--bs-accordion-body-padding-y:0;
  --bs-accordion-btn-color:var(--text);--bs-accordion-active-color:var(--primary);--bs-accordion-active-bg:transparent;
  --bs-accordion-btn-focus-box-shadow:none;--bs-accordion-btn-focus-border-color:transparent;
}
.c-accordion .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;}
.c-accordion .accordion-item:first-of-type{border-top:1px solid var(--line);}
.c-accordion .accordion-button{
  position:relative;background:transparent;font-size:17px;font-weight:600;color:var(--text);
  padding:22px 44px 22px 26px;box-shadow:none;border-radius:0;
}
.c-accordion .accordion-button::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:10px;height:10px;border-radius:3px;background:var(--lime);
}
.c-accordion .accordion-button::after{
  content:"+";position:absolute;right:14px;top:50%;transform:translateY(-50%);
  background-image:none;width:auto;height:auto;margin:0;
  font-size:22px;font-weight:400;line-height:1;color:var(--primary-3);
}
.c-accordion .accordion-button:not(.collapsed){color:var(--primary);background:transparent;box-shadow:none;}
.c-accordion .accordion-button:not(.collapsed)::after{content:"−";color:var(--primary);transform:translateY(-50%);}
.c-accordion .accordion-button:hover{color:var(--primary);}
.c-accordion .accordion-body{
  background:var(--bg);border-radius:var(--r-img);
  margin:0 0 22px 0;padding:20px 24px;
  font-size:15px;color:var(--text-2);
}
.c-accordion .accordion-body p:last-child{margin-bottom:0;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--deep);color:#fff;padding:80px 0;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:40px;
}
.cta-inner h2{color:#fff;font-size:30px;margin-bottom:10px;}
.cta-inner p{color:rgba(255,255,255,.72);margin-bottom:0;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}
.cta-band .btn-line{border-color:rgba(255,255,255,.5);color:#fff;}
.cta-band .btn-line:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff;}

/* ---------- footer ---------- */
.site-footer{background:var(--deeper);color:rgba(255,255,255,.72);padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.2fr;gap:40px;}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;color:#fff;margin-bottom:16px;
}
.footer-desc{color:rgba(255,255,255,.62);font-size:14px;line-height:1.85;margin-bottom:0;max-width:340px;}
.footer-title{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.02em;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:rgba(255,255,255,.68);font-size:14px;line-height:1.9;}
.footer-links a:hover{color:var(--lime);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:56px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  h1{font-size:38px;}
  h2{font-size:29px;}
  .feature-row{gap:40px;}
}
@media (max-width:992px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-main{display:none;}
  .section{padding:64px 0;}
  .section-tight{padding:56px 0;}
  .cat-hero{padding:48px 0 64px;}
  .feature-row{grid-template-columns:1fr;gap:24px;padding:36px 0;}
  .feature-row.reverse .feature-media{order:0;}
  .check-grid{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .sec-head{margin-bottom:32px;}
}
@media (max-width:768px){
  body{font-size:15.5px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .section{padding:56px 0;}
  .cat-hero h1{margin:18px 0 14px;}
  .cat-hero .lead-text{font-size:15.5px;}
  .sec-head-inline{flex-direction:column;align-items:flex-start;gap:12px;}
  .footer-bottom{margin-top:40px;}
  .cta-band{padding:64px 0;}
  .cta-inner h2{font-size:24px;}
  .c-accordion .accordion-button{font-size:16px;padding:18px 40px 18px 24px;}
}
@media (max-width:576px){
  .container{padding-left:16px;padding-right:16px;}
  .footer-grid{grid-template-columns:1fr;}
  .plain-card{padding:26px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-main,.cta-actions .btn-line{width:100%;}
}

/* roulang page: category4 */
:root{
  --bg:#F7F6F2;
  --deep:#0B3B36;
  --deep-2:#062B26;
  --surface:#FFFFFF;
  --primary:#0F4A43;
  --primary-2:#14625A;
  --primary-3:#1E7A6E;
  --lime:#C6F24E;
  --amber:#FF7A45;
  --amber-hover:#E9652F;
  --text:#10201D;
  --text-2:#4F625D;
  --meta:#8A9995;
  --line:rgba(11,59,54,.10);
  --line-strong:rgba(11,59,54,.18);
  --overlay:rgba(6,43,38,.55);
  --danger:#D64545;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,59,54,.04),0 8px 24px -12px rgba(11,59,54,.18);
  --sh-2:0 14px 34px -14px rgba(11,59,54,.28);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
  --t:200ms ease-out;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary-2);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--primary);}
a:focus-visible,button:focus-visible,.btn:focus-visible,.accordion-button:focus-visible{
  outline:2px solid var(--primary-3);
  outline-offset:2px;
  box-shadow:none;
}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{font-weight:800;line-height:1.25;margin:0;color:var(--text);letter-spacing:0;}
h1{font-size:44px;}
h2{font-size:32px;line-height:1.3;}
h3{font-size:22px;line-height:1.4;font-weight:700;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.container{max-width:1280px;}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,246,242,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:padding var(--t),background var(--t);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;gap:24px;transition:height var(--t);
}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;color:var(--deep);
  white-space:nowrap;
}
.brand:hover{color:var(--deep);}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  background:var(--lime);
  display:inline-flex;align-items:center;justify-content:center;
  flex:0 0 30px;
}
.brand-mark svg{width:18px;height:18px;}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{
  position:relative;
  font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform var(--t);
}
.nav-links a:hover{color:var(--primary);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--deep);font-weight:700;}
.nav-links a.active::before{
  content:"";display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--lime);margin-right:7px;vertical-align:middle;
}
.nav-links a.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}
.btn-amber{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  background:var(--amber);color:#fff;font-size:15px;font-weight:600;
  border:1px solid transparent;transition:all var(--t);
}
.btn-amber:hover{background:var(--amber-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-amber:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  background:transparent;color:var(--primary);font-size:15px;font-weight:600;
  border:1px solid var(--primary-2);transition:all var(--t);
}
.btn-ghost:hover{background:rgba(15,74,67,.06);color:var(--primary);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light-outline{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  background:transparent;color:#fff;font-size:15px;font-weight:600;
  border:1px solid rgba(255,255,255,.45);transition:all var(--t);
}
.btn-light-outline:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-1px);}
.btn-menu{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line-strong);background:transparent;
  align-items:center;justify-content:center;
}
.btn-menu span{display:block;width:18px;height:2px;background:var(--deep);position:relative;}
.btn-menu span::before,.btn-menu span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--deep);
}
.btn-menu span::before{top:-6px;}
.btn-menu span::after{top:6px;}
.offcanvas{background:var(--bg);}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 24px;}
.offcanvas-title{font-size:16px;font-weight:800;color:var(--deep);}
.offcanvas-body{padding:8px 24px 32px;}
.drawer-nav a{
  display:block;padding:16px 0;font-size:16px;font-weight:500;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--deep);font-weight:700;}
.drawer-nav a.active::before{
  content:"";display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--lime);margin-right:8px;vertical-align:middle;
}
.drawer-cta{margin-top:24px;display:block;}
.drawer-cta .btn-amber{width:100%;}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:20px 0 0;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--meta);
}
.crumb a{color:var(--meta);}
.crumb a:hover{color:var(--primary-2);}
.crumb .sep{color:rgba(11,59,54,.25);}
.crumb .now{color:var(--text-2);}

/* ---------- 深色页首 ---------- */
.page-hero{
  position:relative;
  margin-top:20px;
  background:var(--deep);
  color:#fff;
  border-radius:var(--r-card);
  overflow:hidden;
  padding:64px 56px 60px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.18;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(198,242,78,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(198,242,78,.06) 1px,transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
}
.page-hero .hero-inner{position:relative;z-index:2;max-width:790px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--lime);text-transform:uppercase;margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);display:inline-block;}
.page-hero h1{color:#fff;font-size:42px;line-height:1.3;margin-bottom:20px;}
.page-hero .lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.82);max-width:700px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:14px 28px;margin-top:28px;
  padding-top:22px;border-top:1px solid rgba(255,255,255,.16);
  font-size:13px;color:rgba(255,255,255,.7);
}
.hero-meta strong{color:#fff;font-weight:700;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(198,242,78,.14);
  border:1px solid rgba(198,242,78,.35);
  color:#EAFBC4;font-size:13px;font-weight:500;
  transition:all var(--t);
}
.chip:hover{background:rgba(198,242,78,.24);color:#fff;}

/* ---------- 板块 ---------- */
.section{padding:96px 0 0;}
.section:last-of-type{padding-bottom:0;}
.section-head{margin-bottom:44px;max-width:760px;}
.section-head .kicker{
  font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--primary-3);
  text-transform:uppercase;margin-bottom:12px;display:block;
}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:16px;}

/* ---------- 卡片网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.info-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t);
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.card-cover{position:relative;aspect-ratio:4/3;overflow:hidden;background:#E8E6E0;}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform 220ms ease-out;}
.info-card:hover .card-cover img{transform:scale(1.03);}
.card-badge{
  position:absolute;top:14px;left:14px;
  padding:4px 10px;border-radius:var(--r-pill);
  background:var(--lime);color:#12331F;font-size:12px;font-weight:700;
}
.card-body{padding:22px 22px 26px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:19px;margin-bottom:10px;}
.card-body p{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:14px;}
.card-list{margin-bottom:4px;}
.card-list li{
  position:relative;padding-left:16px;font-size:14px;color:var(--text-2);line-height:1.9;
}
.card-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--lime);
}
.card-foot{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.card-foot .tag{font-size:12px;color:var(--meta);}
.card-foot .link{font-size:14px;font-weight:600;color:var(--primary-2);}
.card-foot .link:hover{color:var(--amber-hover);}

/* ---------- 要点横条 ---------- */
.fact-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.fact-item{
  padding:26px 24px;
  border-right:1px solid var(--line);
}
.fact-item:last-child{border-right:0;}
.fact-icon{
  width:28px;height:28px;border-radius:8px;
  border:1.6px solid var(--primary-3);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:14px;
}
.fact-icon svg{width:15px;height:15px;}
.fact-item strong{display:block;font-size:15px;font-weight:700;color:var(--deep);margin-bottom:6px;}
.fact-item span{font-size:13px;color:var(--text-2);line-height:1.75;display:block;}

/* ---------- FAQ ---------- */
.faq-shell{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:8px 28px;
}
.accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
}
.accordion-item:last-child{border-bottom:0;}
.accordion-button{
  background:transparent;
  border:0;
  box-shadow:none!important;
  padding:24px 8px 24px 0;
  font-size:17px;font-weight:700;color:var(--deep);
  line-height:1.55;
  display:flex;align-items:flex-start;gap:14px;
}
.accordion-button::before{
  content:"";flex:0 0 8px;width:8px;height:8px;border-radius:2px;
  background:var(--lime);margin-top:10px;
}
.accordion-button::after{
  content:"+";
  background-image:none!important;
  width:auto;height:auto;
  font-size:20px;font-weight:400;line-height:1;
  color:var(--primary-3);
  margin-left:auto;margin-top:6px;
  transform:none!important;
  transition:color var(--t);
}
.accordion-button:not(.collapsed){
  background:transparent;
  color:var(--primary);
  box-shadow:none;
}
.accordion-button:not(.collapsed)::after{content:"−";}
.accordion-button:hover{color:var(--primary-2);}
.accordion-body{
  padding:0 8px 26px 22px;
  font-size:15px;color:var(--text-2);line-height:1.9;
}
.accordion-body p{margin-bottom:12px;}
.accordion-body ul li{
  position:relative;padding-left:16px;margin-bottom:6px;
}
.accordion-body ul li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:rgba(30,122,110,.5);
}
.faq-aside{
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
}
.faq-aside h3{font-size:18px;margin-bottom:12px;}
.faq-aside p{font-size:14px;color:var(--text-2);}
.faq-aside .line{
  height:1px;background:var(--line);margin:18px 0;
}
.faq-aside ul li{
  font-size:14px;color:var(--text-2);padding:8px 0;
  border-bottom:1px dashed var(--line);
}
.faq-aside ul li:last-child{border-bottom:0;}

/* ---------- 对比表 ---------- */
.table-wrap{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow-x:auto;
}
table.compare{
  width:100%;min-width:720px;border-collapse:collapse;
  font-size:14.5px;
}
table.compare th,table.compare td{
  padding:18px 22px;text-align:left;vertical-align:top;
  border-bottom:1px solid var(--line);
}
table.compare thead th{
  font-size:13px;font-weight:700;letter-spacing:.03em;
  color:var(--primary);background:rgba(15,74,67,.04);
  border-bottom:1px solid var(--line-strong);
  white-space:nowrap;
}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare tbody tr:hover{background:rgba(198,242,78,.07);}
table.compare td:first-child{font-weight:700;color:var(--deep);white-space:nowrap;}
table.compare td{color:var(--text-2);}
.table-note{
  margin-top:16px;font-size:13px;color:var(--meta);
}

/* ---------- 转化 CTA ---------- */
.cta-band{
  margin-top:96px;
  background:var(--deep-2);
  border-radius:var(--r-card);
  padding:72px 56px;
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;
  border-radius:50%;background:radial-gradient(circle,rgba(198,242,78,.16),transparent 70%);
}
.cta-band .cta-text{position:relative;z-index:2;max-width:620px;}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.75);font-size:15px;margin:0;}
.cta-band .cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}
.badge-soft{
  display:inline-block;padding:4px 10px;border-radius:var(--r-pill);
  background:rgba(198,242,78,.16);color:#E6F9B8;
  font-size:12px;font-weight:600;margin-bottom:16px;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:104px;
  background:var(--deep-2);
  color:rgba(255,255,255,.72);
  padding:72px 0 28px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;color:#fff;margin-bottom:16px;
}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:340px;}
.footer-title{
  font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;
}
.footer-links li{line-height:1.9;}
.footer-links a{
  font-size:14px;color:rgba(255,255,255,.7);
}
.footer-links a:hover{color:var(--lime);}
.footer-bottom{
  margin-top:48px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .page-hero{padding:56px 40px 52px;}
  .page-hero h1{font-size:38px;}
}
@media (max-width:992px){
  .nav-links,.header-actions .btn-amber{display:none;}
  .btn-menu{display:flex;}
  .site-header.is-scrolled .header-inner{height:64px;}
  .header-inner{height:66px;}
  .page-hero{padding:48px 32px 46px;}
  .page-hero h1{font-size:32px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .fact-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .fact-item:nth-child(2){border-right:0;}
  .fact-item:nth-child(1),.fact-item:nth-child(2){border-bottom:1px solid var(--line);}
  .section{padding-top:64px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .cta-band{margin-top:64px;padding:52px 32px;}
}
@media (max-width:768px){
  h1{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .container{padding:0 16px;}
  .page-hero{margin-top:16px;padding:40px 22px 38px;border-radius:14px;}
  .page-hero h1{font-size:27px;}
  .page-hero .lead{font-size:15.5px;}
  .hero-meta{gap:10px 18px;font-size:12.5px;}
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .section{padding-top:56px;}
  .section-head{margin-bottom:30px;}
  .faq-shell{padding:4px 18px;}
  .accordion-button{font-size:16px;padding:20px 4px 20px 0;}
  .accordion-body{padding:0 4px 22px 22px;}
  .cta-band{padding:44px 24px;margin-top:56px;}
  .cta-band h2{font-size:22px;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn-amber,
  .cta-band .cta-actions .btn-light-outline{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{margin-top:64px;padding-top:52px;}
  .footer-desc{max-width:none;}
  .table-wrap{border-radius:14px;}
  table.compare th,table.compare td{padding:14px 16px;}
}
@media (max-width:576px){
  .page-hero h1{font-size:24px;}
  .chip{font-size:12px;padding:5px 11px;}
  .fact-strip{grid-template-columns:1fr;}
  .fact-item{border-right:0!important;border-bottom:1px solid var(--line);}
  .fact-item:last-child{border-bottom:0;}
}

/* roulang page: category3 */
:root{
  --bg:#F7F6F2;
  --card:#FFFFFF;
  --ink:#0B3B36;
  --ink-deep:#062B26;
  --primary:#0F4A43;
  --primary-2:#14625A;
  --primary-3:#1E7A6E;
  --lime:#C6F24E;
  --amber:#FF7A45;
  --amber-hover:#E9652F;
  --danger:#D64545;
  --text:#10201D;
  --text-2:#4F625D;
  --meta:#8A9995;
  --line:rgba(11,59,54,.10);
  --line-strong:rgba(11,59,54,.18);
  --overlay:rgba(6,43,38,.55);
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,59,54,.04), 0 8px 24px -12px rgba(11,59,54,.18);
  --sh-2:0 14px 34px -14px rgba(11,59,54,.28);
  --ease:.2s ease-out;
  --font-base:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Inter","DIN Alternate","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease)}
a:hover{color:var(--primary-3)}
p{margin:0 0 18px}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);line-height:1.3}
ul,ol{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:576px){.container{padding-left:16px;padding-right:16px}}

/* ============ 按钮系统 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 22px;cursor:pointer;
  transition:transform var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.btn-cta{background:var(--amber);color:#fff}
.btn-cta:hover{background:var(--amber-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-cta:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--line-strong)}
.btn-ghost:hover{background:#fff;color:var(--primary);border-color:var(--primary);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-ghost:active{transform:translateY(1px);box-shadow:none}
.btn-light-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn-light-ghost:hover{color:var(--lime);border-color:var(--lime);background:rgba(255,255,255,.06);transform:translateY(-1px)}
.btn-sm{padding:10px 16px;font-size:14px}

/* ============ 徽章 / 标签 ============ */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1.6;
  background:rgba(198,242,78,.35);color:#2C3D10;
}
.badge-gray{background:rgba(11,59,54,.07);color:var(--text-2)}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 14px;border-radius:var(--r-pill);
  font-size:13px;line-height:1.7;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.22);
  color:#fff;transition:all var(--ease);
}
.tag:hover{background:rgba(198,242,78,.18);border-color:var(--lime);color:var(--lime)}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,246,242,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(160%) blur(10px);
}
.header-inner{display:flex;align-items:center;gap:32px;height:72px;transition:height var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--primary)}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--lime);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:18px;height:18px}
.brand-text{font-size:16.5px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
}
.nav-links a:hover{color:var(--primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--primary);font-weight:700}
.nav-links a.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  width:42px;height:42px;border-radius:var(--r-btn);
  border:1px solid var(--line-strong);background:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  cursor:pointer;transition:all var(--ease);
}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--primary)}
.nav-toggle:hover{border-color:var(--primary);box-shadow:var(--sh-1)}

/* 移动抽屉 */
.offcanvas.drawer{background:var(--bg);width:320px;border-left:1px solid var(--line)}
.drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px}
.drawer-brand{font-size:16px;font-weight:700;color:var(--primary)}
.drawer .offcanvas-body{padding:12px 22px 28px}
.drawer-links{display:flex;flex-direction:column;margin-bottom:24px}
.drawer-links a{
  display:block;padding:15px 0;border-bottom:1px solid var(--line);
  font-size:16px;font-weight:500;color:var(--text-2);
}
.drawer-links a:hover{color:var(--primary)}
.drawer-links a.active{color:var(--primary);font-weight:700}
.drawer .btn{width:100%}

/* ============ 内页首屏 ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--ink) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#fff;padding:96px 0 88px;
}
.page-hero::before{content:"";position:absolute;inset:0;background:var(--overlay)}
.page-hero::after{
  content:"";position:absolute;inset:0;opacity:.16;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:72px 72px;
}
.page-hero .container{position:relative;z-index:1}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:22px}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:var(--lime)}
.crumb .sep{color:rgba(255,255,255,.35)}
.page-hero h1{
  color:#fff;font-size:44px;font-weight:800;line-height:1.25;letter-spacing:-.02em;
  max-width:820px;margin-bottom:20px;
}
.hero-lead{font-size:17px;line-height:1.95;color:rgba(255,255,255,.82);max-width:720px;margin-bottom:26px}
.anchor-tags{display:flex;flex-wrap:wrap;gap:10px}
@media (max-width:768px){
  .page-hero{padding:64px 0 60px}
  .page-hero h1{font-size:30px}
  .hero-lead{font-size:15.5px}
}

/* ============ 板块 ============ */
.section{padding:96px 0}
.section-alt{background:#fff}
.section-tight{padding:72px 0}
@media (max-width:992px){.section{padding:64px 0}.section-tight{padding:56px 0}}
@media (max-width:576px){.section{padding:56px 0}.section-tight{padding:48px 0}}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{font-size:32px;font-weight:800;letter-spacing:-.01em;margin-bottom:14px}
.section-head p{color:var(--text-2);margin:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--primary-3);
  letter-spacing:.08em;margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--lime);border-radius:2px}
@media (max-width:768px){
  .section-head{margin-bottom:32px}
  .section-head h2{font-size:24px}
}

/* ============ 时间线（下载与安装流程） ============ */
.timeline{position:relative;padding-left:64px}
.timeline::before{
  content:"";position:absolute;left:19px;top:10px;bottom:10px;width:1px;
  background:var(--line-strong);
}
.tl-item{position:relative;padding-bottom:40px}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  position:absolute;left:-64px;top:0;
  width:40px;height:40px;border-radius:50%;
  background:var(--lime);color:var(--ink-deep);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:15px;font-weight:700;
  box-shadow:0 0 0 6px var(--bg);
}
.section-alt .tl-num{box-shadow:0 0 0 6px #fff}
.tl-item h3{font-size:22px;font-weight:700;margin-bottom:10px}
.tl-item p{color:var(--text-2);margin:0;max-width:760px}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
@media (max-width:768px){
  .timeline{padding-left:52px}
  .timeline::before{left:15px}
  .tl-num{left:-52px;width:32px;height:32px;font-size:13px;box-shadow:0 0 0 5px var(--bg)}
  .section-alt .tl-num{box-shadow:0 0 0 5px #fff}
  .tl-item h3{font-size:19px}
}

/* ============ 图文分栏 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split+.split{margin-top:72px}
.split-media{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);transition:transform .22s ease-out}
.split-media:hover img{transform:scale(1.03)}
.split-body h3{font-size:22px;font-weight:700;margin-bottom:14px}
.split-body p{color:var(--text-2)}
.check-list{list-style:none;padding:0;margin:0}
.check-list li{
  position:relative;padding-left:26px;margin-bottom:12px;color:var(--text-2);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:9px;height:9px;border-radius:3px;background:var(--lime);
}
@media (max-width:992px){
  .split{grid-template-columns:1fr;gap:28px}
  .split+.split{margin-top:48px}
  .split-media{order:-1}
}

/* ============ 编号列表（异常排查） ============ */
.issue-list{display:flex;flex-direction:column;gap:0}
.issue{
  display:grid;grid-template-columns:64px 1fr;gap:20px;
  padding:26px 0;border-bottom:1px solid var(--line);
}
.issue:first-child{border-top:1px solid var(--line)}
.issue-num{
  font-family:var(--font-num);font-size:26px;font-weight:700;
  color:rgba(11,59,54,.16);line-height:1.3;
}
.issue h3{font-size:19px;font-weight:700;margin-bottom:8px}
.issue p{color:var(--text-2);margin:0}
.issue .tips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
@media (max-width:768px){
  .issue{grid-template-columns:44px 1fr;gap:14px;padding:22px 0}
  .issue-num{font-size:20px}
  .issue h3{font-size:17px}
}

/* ============ 保障条（设备与网络建议） ============ */
.ensure-band{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  display:grid;grid-template-columns:repeat(4,1fr);
}
.ensure-item{padding:32px 26px;border-right:1px solid var(--line)}
.ensure-item:last-child{border-right:0}
.ensure-icon{
  width:38px;height:38px;border-radius:11px;
  background:rgba(11,59,54,.06);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.ensure-icon svg{width:18px;height:18px;stroke:var(--primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.ensure-item h3{font-size:16.5px;font-weight:700;margin-bottom:8px}
.ensure-item p{font-size:14px;color:var(--text-2);margin:0;line-height:1.8}
@media (max-width:992px){
  .ensure-band{grid-template-columns:repeat(2,1fr)}
  .ensure-item{border-bottom:1px solid var(--line)}
  .ensure-item:nth-child(2n){border-right:0}
  .ensure-item:nth-last-child(-n+2){border-bottom:0}
}
@media (max-width:576px){
  .ensure-band{grid-template-columns:1fr}
  .ensure-item{border-right:0;padding:24px 20px}
  .ensure-item:nth-last-child(-n+2){border-bottom:1px solid var(--line)}
  .ensure-item:last-child{border-bottom:0}
}

/* ============ FAQ ============ */
.faq-acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq-acc .accordion-item:first-child{border-top:1px solid var(--line)}
.faq-acc .accordion-button{
  position:relative;background:transparent;border:0;border-radius:0;
  padding:22px 48px 22px 26px;
  font-size:17px;font-weight:600;color:var(--text);
  box-shadow:none;transition:background-color var(--ease),color var(--ease);
}
.faq-acc .accordion-button::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:10px;height:10px;border-radius:3px;background:var(--lime);
}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;width:auto;height:auto;
  font-size:20px;font-weight:400;color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  transform:none;margin-left:auto;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--primary);background:#F7F6F2}
.faq-acc .accordion-button:not(.collapsed)::after{content:"−";transform:none}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--primary);outline-offset:-2px}
.faq-acc .accordion-body{
  background:#F7F6F2;color:var(--text-2);
  padding:0 48px 24px 26px;font-size:15px;line-height:1.9;
}

/* ============ CTA ============ */
.cta-band{background:var(--ink-deep);color:#fff;padding:80px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px}
.cta-band h2{color:#fff;font-size:30px;font-weight:800;letter-spacing:-.01em;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.72);margin:0;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto}
@media (max-width:992px){
  .cta-band{padding:64px 0}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:26px}
  .cta-band h2{font-size:24px}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-size:17px;font-weight:700;margin-bottom:14px;
}
.footer-brand .brand-mark{width:30px;height:30px;border-radius:9px;background:var(--lime)}
.footer-brand .brand-mark svg{width:17px;height:17px}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);margin:0;max-width:330px}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin:0 0 14px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(255,255,255,.68);font-size:14px;line-height:1.9}
.footer-links a:hover{color:var(--lime)}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(255,255,255,.5);
}
@media (max-width:992px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{padding:56px 0 24px}
}
@media (max-width:576px){
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px;margin-top:32px}
}

/* 覆盖 Bootstrap 默认蓝 */
.btn-check:focus+.btn,.btn:focus{box-shadow:none}
.accordion{--bs-accordion-btn-focus-box-shadow:none}