/* roulang page: index */
:root{
  --brand:#F0592B;
  --brand-deep:#C9411A;
  --accent:#0E9F8A;
  --sun:#FFC24B;
  --ink:#14161A;
  --ink-2:#4A4F57;
  --line:#E4E0D9;
  --paper:#FAF8F5;
  --card:#FFFFFF;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(20,22,26,.06),0 8px 24px rgba(20,22,26,.06);
  --shadow-2:0 2px 4px rgba(20,22,26,.08),0 16px 32px rgba(20,22,26,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  padding-bottom:76px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;line-height:1.28;letter-spacing:-.01em;font-weight:700;color:var(--ink);}
h1{font-size:44px;}
h2{font-size:32px;}
h3{font-size:22px;}
h4{font-size:18px;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0 0 1.1em;padding-left:1.4em;line-height:1.8;}
li{margin-bottom:.4em;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.shell{max-width:1200px;margin:0 auto;padding:0 16px;width:100%;}
@media (min-width:768px){.shell{padding:0 24px;}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(20,22,26,.07);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--ink);letter-spacing:-.02em;white-space:nowrap;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;letter-spacing:0;
}
.nav-main{display:none;align-items:center;gap:4px;}
@media (min-width:1024px){.nav-main{display:flex;}}
.nav-main a{
  position:relative;
  display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;font-weight:600;color:var(--ink-2);border-radius:8px;
}
.nav-main a:hover{color:var(--brand);background:rgba(240,89,43,.06);}
.nav-main a.active{color:var(--brand);}
.nav-main a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-cta{display:none;}
@media (min-width:768px){.header-cta{display:inline-flex;}}
.hamburger{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:18px;
}
.hamburger:hover{border-color:var(--accent);color:var(--accent);}
@media (min-width:1024px){.hamburger{display:none;}}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:all .2s var(--ease);text-align:center;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 1px 2px rgba(20,22,26,.15) inset;}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);}
.btn-sun{background:var(--sun);color:var(--ink);}
.btn-sun:hover{background:#FFB02E;color:var(--ink);transform:translateY(-1px);}
.btn-outline-light{background:transparent;border-color:rgba(237,234,228,.45);color:#EDEAE4;}
.btn-outline-light:hover{border-color:var(--sun);color:var(--sun);transform:translateY(-1px);}
.btn-sm{min-height:40px;padding:8px 18px;font-size:14px;}

/* ---------- Badges & tags ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.6;
  background:rgba(14,159,138,.10);color:var(--accent);
}
.badge-brand{background:rgba(240,89,43,.10);color:var(--brand);}
.badge-outline{background:#fff;border:1px solid var(--line);color:var(--ink-2);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;min-height:36px;padding:6px 16px;
  border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--ink-2);
}
.tag:hover{border-color:var(--accent);color:var(--accent);}

/* ---------- Section ---------- */
.section{padding:48px 0;}
@media (min-width:768px){.section{padding:80px 0;}}
.section-dark{background:var(--ink);color:#EDEAE4;}
.section-dark h2,.section-dark h3,.section-dark h4{color:#fff;}
.section-dark p{color:rgba(237,234,228,.82);}
.section-white{background:#fff;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.h2-bar{position:relative;padding-left:32px;}
.h2-bar::before{
  content:"";position:absolute;left:0;top:.14em;bottom:.14em;width:4px;
  background:var(--brand);border-radius:3px;
}
.eyebrow{
  display:inline-block;margin-bottom:14px;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--accent);text-transform:uppercase;
}
.section-desc{margin-top:14px;font-size:17px;color:var(--ink-2);line-height:1.85;}
.section-dark .section-desc{color:rgba(237,234,228,.78);}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#FFFFFF 0%,var(--paper) 100%);padding:44px 0 52px;}
@media (min-width:768px){.hero{padding:72px 0 88px;}}
.hero-grid{display:grid;gap:36px;align-items:center;}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:56px;}}
.hero h1{font-size:30px;margin:18px 0 0;}
@media (min-width:768px){.hero h1{font-size:40px;}}
@media (min-width:1280px){.hero h1{font-size:44px;}}
.hero-sub{margin-top:18px;font-size:17px;color:var(--ink-2);max-width:520px;line-height:1.85;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-points{display:flex;flex-wrap:wrap;gap:8px 24px;margin-top:26px;padding:0;list-style:none;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);margin:0;}
.hero-points i{color:var(--accent);font-size:13px;}
.hero-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1);}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;background:linear-gradient(135deg,var(--paper) 0%,#F3EFE9 100%);}
.hero-media::after{content:"";position:absolute;inset:0;background:rgba(240,89,43,.06);pointer-events:none;}
.hero-media-cap{
  position:absolute;left:16px;bottom:16px;right:16px;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  background:rgba(255,255,255,.94);border-radius:12px;padding:12px 16px;
  font-size:13px;color:var(--ink-2);box-shadow:var(--shadow-1);
}
.hero-media-cap strong{color:var(--ink);font-size:14px;}

/* ---------- Feature cards (asymmetric) ---------- */
.feat-wrap{display:grid;gap:24px;}
@media (min-width:1024px){
  .feat-wrap{grid-template-columns:7fr 5fr;align-items:start;}
  .feat-wrap .feat-side{margin-top:32px;}
}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.feat-main{padding:28px;}
.feat-main .feat-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;background:var(--sun);
  font-weight:800;font-size:16px;color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.feat-main h3{margin:18px 0 10px;font-size:22px;}
.feat-main p{color:var(--ink-2);font-size:16px;}
.feat-main .feat-list{list-style:none;padding:0;margin:20px 0 0;}
.feat-main .feat-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);margin-bottom:8px;}
.feat-main .feat-list i{color:var(--accent);margin-top:6px;font-size:13px;}
.feat-media{margin-top:22px;border-radius:14px;overflow:hidden;}
.feat-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.feat-side{padding:24px;}
.feat-side h3{margin:16px 0 8px;font-size:20px;}
.feat-side p{color:var(--ink-2);font-size:15px;}

.icon-row{display:grid;gap:16px;margin-top:28px;}
@media (min-width:640px){.icon-row{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.icon-row{grid-template-columns:repeat(4,1fr);}}
.icon-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.icon-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-1);border-color:rgba(14,159,138,.35);}
.icon-box{
  width:40px;height:40px;border-radius:10px;background:rgba(14,159,138,.10);
  color:var(--ink);display:flex;align-items:center;justify-content:center;font-size:16px;
}
.icon-item h4{margin:14px 0 6px;font-size:17px;}
.icon-item p{font-size:14px;color:var(--ink-2);line-height:1.75;margin:0;}

/* ---------- Zigzag ---------- */
.zig{display:grid;gap:28px;align-items:center;padding:28px 0;border-bottom:1px solid var(--line);}
.zig:last-child{border-bottom:0;}
@media (min-width:900px){
  .zig{grid-template-columns:1fr 1fr;gap:48px;padding:40px 0;}
  .zig.reverse .zig-media{order:2;}
}
.zig-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1);}
.zig-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s var(--ease);}
.zig-media:hover img{transform:scale(1.03);}
.zig-body h3{margin:14px 0 10px;font-size:22px;}
.zig-body p{color:var(--ink-2);font-size:16px;}
.zig-list{list-style:none;padding:0;margin:16px 0 0;}
.zig-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);margin-bottom:8px;}
.zig-list i{color:var(--accent);margin-top:6px;font-size:13px;}

/* ---------- Dark proof band ---------- */
.proof-grid{display:grid;gap:20px;}
@media (min-width:900px){.proof-grid{grid-template-columns:1fr 1fr;}}
.proof-card{
  display:grid;gap:20px;align-items:center;
  background:rgba(255,255,255,.045);
  border:1px solid rgba(237,234,228,.16);
  border-radius:var(--radius-lg);padding:26px;
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
@media (min-width:560px){.proof-card{grid-template-columns:1fr auto;}}
.proof-card:hover{transform:translateY(-2px);border-color:rgba(255,194,75,.45);}
.proof-card h3{font-size:20px;margin-bottom:10px;}
.proof-card p{font-size:15px;margin:0;}
.proof-stat{
  text-align:left;padding-left:20px;border-left:1px solid rgba(237,234,228,.16);
}
@media (max-width:559px){.proof-stat{padding-left:0;border-left:0;border-top:1px solid rgba(237,234,228,.16);padding-top:16px;}}
.proof-num{
  font-size:34px;font-weight:800;color:var(--sun);line-height:1.1;
  font-variant-numeric:tabular-nums;font-family:ui-monospace,"SF Mono",Menlo,monospace;
}
.proof-label{font-size:13px;color:rgba(237,234,228,.7);margin-top:4px;}

/* ---------- Plans ---------- */
.plan-grid{display:grid;gap:22px;}
@media (min-width:768px){.plan-grid{grid-template-columns:repeat(3,1fr);align-items:stretch;}}
.plan{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;display:flex;flex-direction:column;transition:transform .2s var(--ease),box-shadow .2s var(--ease);}
.plan:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.plan.featured{border:1.5px solid var(--brand);box-shadow:var(--shadow-1);}
.plan-flag{
  position:absolute;top:-13px;left:28px;
  background:var(--brand);color:#fff;font-size:12px;font-weight:700;
  padding:4px 12px;border-radius:999px;
}
.plan h3{font-size:20px;margin-bottom:8px;}
.plan .plan-note{font-size:14px;color:var(--ink-2);min-height:44px;}
.plan .plan-price{
  margin:18px 0;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  font-size:18px;font-weight:700;color:var(--ink);
}
.plan .plan-price span{display:block;font-size:13px;font-weight:500;color:var(--ink-2);margin-top:4px;}
.plan ul{list-style:none;padding:0;margin:0 0 24px;flex:1;}
.plan ul li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);margin-bottom:10px;line-height:1.7;}
.plan ul li i{color:var(--accent);margin-top:6px;font-size:13px;}
.plan .btn{width:100%;}

/* ---------- Post cards ---------- */
.post-grid{display:grid;gap:22px;}
@media (min-width:768px){.post-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr);}}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.post-cover{display:block;overflow:hidden;background:linear-gradient(135deg,var(--line) 0%,var(--paper) 100%);}
.post-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s var(--ease);}
.post-card:hover .post-cover img{transform:scale(1.03);}
.post-body{padding:20px;display:flex;flex-direction:column;flex:1;gap:10px;}
.post-body h3{font-size:18px;line-height:1.5;}
.post-body h3 a{color:var(--ink);}
.post-body h3 a:hover{color:var(--brand);}
.post-excerpt{font-size:15px;color:var(--ink-2);line-height:1.8;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-2);}
.post-foot a{font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.empty-state{
  grid-column:1/-1;text-align:center;padding:48px 24px;
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);
}
.empty-state i{font-size:28px;color:var(--line);}
.empty-state p{margin:14px 0 18px;color:var(--ink-2);font-size:15px;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item summary .faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(240,89,43,.08);color:var(--brand);font-size:13px;
  transition:transform .25s var(--ease),background .2s var(--ease),color .2s var(--ease);
  margin-top:3px;
}
.faq-item[open] summary .faq-icon{transform:rotate(45deg);background:var(--brand);color:#fff;}
.faq-answer{padding:0 0 22px;font-size:15px;color:var(--ink-2);line-height:1.85;max-width:880px;}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand);color:#fff;} 
.cta-inner{
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.24);
  border-radius:var(--radius-lg);
  padding:40px 28px;text-align:center;
}
@media (min-width:768px){.cta-inner{padding:64px 40px;}}
.cta-inner h2{color:#fff;font-size:28px;}
@media (min-width:768px){.cta-inner h2{font-size:32px;}}
.cta-inner p{color:rgba(255,255,255,.9);margin:14px auto 26px;max-width:620px;font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#EDEAE4;padding-top:56px;}
.footer-grid{display:grid;gap:32px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:14px;}
.site-footer p{color:rgba(237,234,228,.72);font-size:15px;line-height:1.8;margin:0;}
.footer-title{font-size:14px;font-weight:700;color:#fff;letter-spacing:.06em;margin-bottom:16px;}
.footer-links{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:rgba(237,234,228,.72);font-size:15px;display:inline-block;padding:2px 0;}
.footer-links a:hover{color:var(--sun);}
.footer-contact li{display:flex;gap:10px;font-size:15px;color:rgba(237,234,228,.72);margin-bottom:10px;}
.footer-contact i{color:var(--sun);margin-top:6px;font-size:13px;}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(237,234,228,.14);
  padding:20px 0 24px;display:flex;flex-wrap:wrap;gap:10px 20px;
  justify-content:space-between;font-size:13px;color:rgba(237,234,228,.55);
}

/* ---------- Mobile bottom tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  display:grid;grid-template-columns:repeat(5,1fr);
}
@media (min-width:768px){.mobile-tab{display:none;} body{padding-bottom:0;}}
.mobile-tab a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  height:56px;font-size:10px;font-weight:600;color:var(--ink-2);
}
.mobile-tab a i{font-size:16px;}
.mobile-tab a:hover{color:var(--brand);}
.mobile-tab a.active{color:var(--brand);}

/* ---------- Drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:70;display:none;
}
.drawer.open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(20,22,26,.45);}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:#fff;padding:22px;overflow-y:auto;
  box-shadow:-8px 0 32px rgba(20,22,26,.18);
  animation:drawerIn .25s var(--ease);
}
@keyframes drawerIn{from{transform:translateX(24px);opacity:.6;}to{transform:translateX(0);opacity:1;}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-nav{list-style:none;padding:0;margin:0 0 24px;}
.drawer-nav li{margin-bottom:6px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:10px;
  font-size:16px;font-weight:600;color:var(--ink);
}
.drawer-nav a:hover{background:rgba(240,89,43,.06);color:var(--brand);}
.drawer-nav a.active{background:rgba(240,89,43,.08);color:var(--brand);}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --brand:#F0592B;
  --brand-deep:#C9411A;
  --accent:#0E9F8A;
  --sun:#FFC24B;
  --ink:#14161A;
  --ink-2:#4A4F57;
  --line:#E4E0D9;
  --paper:#FAF8F5;
  --card:#FFFFFF;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(20,22,26,.06), 0 8px 24px rgba(20,22,26,.06);
  --shadow-2:0 2px 4px rgba(20,22,26,.08), 0 16px 32px rgba(20,22,26,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --shell:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.28;letter-spacing:-.01em}
p{margin:0 0 1.1em}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 16px}
@media (min-width:768px){ .shell{padding:0 24px} }

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 1px 2px rgba(20,22,26,.05), 0 10px 24px rgba(20,22,26,.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;min-height:44px;font-weight:700;font-size:17px;color:var(--ink)}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:11px;
  background:var(--brand);color:#fff;font-size:13px;font-weight:800;letter-spacing:.04em;
}
.brand-text{white-space:nowrap}
.nav-main{display:none;align-items:center;gap:28px}
.nav-main a{
  position:relative;padding:6px 0;font-size:15.5px;color:var(--ink-2);
  transition:color .18s var(--ease);
}
.nav-main a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-main a:hover{color:var(--brand)}
.nav-main a:hover::after{transform:scaleX(1)}
.nav-main a.active{color:var(--ink);font-weight:600}
.nav-main a.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);cursor:pointer;transition:all .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent)}
@media (min-width:1024px){
  .nav-main{display:flex}
  .nav-toggle{display:none}
}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(84vw,340px);z-index:60;
  background:#fff;border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .3s var(--ease);
  padding:20px;overflow-y:auto;
  box-shadow:-12px 0 40px rgba(20,22,26,.12);
}
.drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-title{font-size:14px;font-weight:600;color:var(--ink-2);letter-spacing:.04em}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
  cursor:pointer;color:var(--ink);font-size:16px;
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer-nav a{
  display:flex;align-items:center;gap:12px;min-height:48px;padding:0 12px;border-radius:12px;
  color:var(--ink);font-size:16px;transition:background .18s var(--ease),color .18s var(--ease);
}
.drawer-nav a i{width:18px;color:var(--accent)}
.drawer-nav a:hover{background:rgba(14,159,138,.08);color:var(--brand)}
.drawer-nav a.active{background:rgba(240,89,43,.1);color:var(--brand-deep);font-weight:600}
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,22,26,.42);z-index:55;
  opacity:0;pointer-events:none;transition:opacity .25s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all .2s var(--ease);
}
.btn i{font-size:13px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sun{background:var(--sun);color:var(--ink)}
.btn-sun:hover{background:#ffb42e;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,194,75,.32)}
.btn-sun:active{transform:translateY(1px);box-shadow:none}
.btn-sm{min-height:40px;padding:10px 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  background:rgba(14,159,138,.1);color:var(--accent);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-brand{background:rgba(240,89,43,.1);color:var(--brand-deep)}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);font-size:13px;
  transition:all .18s var(--ease);
}
.tag:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- 文章区 ---------- */
.page-wrap{padding:28px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-2);margin-bottom:18px}
.crumb a{color:var(--ink-2);transition:color .18s var(--ease)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--line)}
.crumb .current{color:var(--ink);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-head{padding-bottom:26px;border-bottom:1px solid var(--line)}
.article-head h1{font-size:30px;font-weight:800;margin:14px 0 12px;color:var(--ink)}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--ink-2)}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line)}

.article-layout{
  display:grid;grid-template-columns:1fr;gap:36px;
  padding:32px 0 0;
}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,760px) 300px;gap:48px}
}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 22px;box-shadow:var(--shadow-1);overflow-x:auto;
}
@media (min-width:768px){ .article-card{padding:38px 40px} }

.article-body{font-size:17px;line-height:1.9;color:var(--ink);overflow-wrap:break-word}
.article-body h2{
  position:relative;font-size:25px;font-weight:800;margin:2em 0 .8em;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:20px;font-weight:700;margin:1.6em 0 .6em}
.article-body h4{font-size:17.5px;font-weight:700;margin:1.4em 0 .5em}
.article-body p{margin:0 0 1.2em}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-deep)}
.article-body ul,.article-body ol{padding-left:1.4em;line-height:1.8;margin:0 0 1.2em}
.article-body li{margin-bottom:.45em}
.article-body blockquote{
  margin:1.4em 0;padding:16px 20px;border-left:3px solid var(--accent);
  background:var(--paper);border-radius:0 12px 12px 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:18px 0 12px}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center}
.article-body code{
  background:var(--paper);border:1px solid var(--line);border-radius:4px;
  padding:2px 6px;font-size:14.5px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
}
.article-body pre{
  background:#14161A;color:#EDEAE4;padding:18px 20px;border-radius:12px;overflow-x:auto;font-size:14.5px;
}
.article-body pre code{background:none;border:0;color:inherit;padding:0}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.4em 0;min-width:480px}
.article-body thead th{background:var(--ink);color:#fff;font-weight:600;text-align:left;padding:12px 14px}
.article-body tbody td{padding:11px 14px;border-bottom:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:var(--paper)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}

.article-empty{text-align:center;padding:36px 16px 44px}
.article-empty i{font-size:34px;color:var(--accent);margin-bottom:14px;display:block}
.article-empty h2{font-size:22px;margin-bottom:10px}
.article-empty p{color:var(--ink-2);max-width:520px;margin:0 auto 22px}

/* 标签行 */
.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line)}
.article-tags .label{font-size:13px;color:var(--ink-2);font-weight:600}

/* 返回列表 */
.back-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* ---------- 侧栏 ---------- */
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--shadow-1);margin-bottom:20px;
}
.side-title{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-title i{color:var(--brand);font-size:13px}
.toc-list{list-style:none;padding:0;margin:0;counter-reset:toc}
.toc-list li{counter-increment:toc;border-bottom:1px dashed var(--line)}
.toc-list li:last-child{border-bottom:0}
.toc-list a{
  display:flex;gap:10px;padding:9px 0;font-size:14.5px;color:var(--ink-2);line-height:1.6;
  transition:color .18s var(--ease);
}
.toc-list a::before{
  content:counter(toc,decimal-leading-zero);
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:12px;color:var(--sun);font-weight:700;flex:0 0 auto;padding-top:2px;
}
.toc-list a:hover{color:var(--brand)}
.side-links{list-style:none;padding:0;margin:0}
.side-links li{margin-bottom:6px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:44px;padding:0 12px;border-radius:10px;font-size:14.5px;color:var(--ink-2);
  background:var(--paper);transition:all .18s var(--ease);
}
.side-links a:hover{background:rgba(240,89,43,.08);color:var(--brand-deep)}
.side-links a i{font-size:12px}
.side-cta{
  background:#14161A;color:#EDEAE4;border-radius:var(--r-card);padding:22px 20px;text-align:left;
}
.side-cta h3{font-size:17px;color:#fff;margin-bottom:8px}
.side-cta p{font-size:14px;color:#B9B4AC;line-height:1.75;margin:0 0 16px}

/* ---------- 相关推荐 ---------- */
.related{padding:56px 0 0}
.section-head{margin-bottom:24px}
.section-head h2{font-size:24px;font-weight:800;display:flex;align-items:center;gap:12px}
.section-head h2::before{content:"";width:4px;height:22px;border-radius:2px;background:var(--brand);display:inline-block}
.section-head p{margin:10px 0 0;color:var(--ink-2);font-size:15px}
.rel-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media (min-width:640px){ .rel-grid{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1024px){ .rel-grid{grid-template-columns:repeat(3,1fr)} }
.post-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.post-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#FAF8F5,#F3EFE9)}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.post-card:hover .post-cover img{transform:scale(1.03)}
.post-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:17.5px;font-weight:700;line-height:1.45}
.post-body p{font-size:14.5px;color:var(--ink-2);line-height:1.75;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-2);padding-top:6px}
.post-foot .more{color:var(--brand);font-weight:600}
.post-card:hover .post-foot .more{color:var(--brand-deep)}

/* ---------- CTA 带 ---------- */
.cta-band{background:#14161A;padding:56px 0;margin-top:64px}
.cta-inner{
  background:#1C1F25;border:1px solid rgba(237,234,228,.12);border-radius:var(--r-lg);
  padding:36px 26px;display:flex;flex-direction:column;gap:22px;align-items:flex-start;
}
.cta-inner h2{font-size:25px;color:#fff;font-weight:800}
.cta-inner p{color:#B9B4AC;font-size:15.5px;margin:10px 0 0;max-width:620px}
@media (min-width:900px){
  .cta-band{padding:64px 0;margin-top:80px}
  .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;padding:44px 48px}
}

/* ---------- 页脚 ---------- */
.site-footer{background:#14161A;color:#EDEAE4;padding:56px 0 22px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:30px}
@media (min-width:640px){ .footer-grid{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px} }
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:12px}
.footer-brand .brand-mark{background:var(--brand)}
.site-footer p{color:#B9B4AC;font-size:14.5px;line-height:1.8;margin:0;max-width:320px}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.03em}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:4px}
.footer-links a{
  display:inline-flex;align-items:center;min-height:36px;font-size:14.5px;color:#B9B4AC;
  transition:color .18s var(--ease);
}
.footer-links a:hover{color:var(--sun)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;min-height:36px;font-size:14.5px;color:#B9B4AC;line-height:1.7}
.footer-contact i{color:var(--sun);padding-top:5px;font-size:13px}
.footer-bottom{
  margin-top:34px;padding-top:18px;border-top:1px solid rgba(237,234,228,.12);
  display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:space-between;
  font-size:13px;color:#8D8880;
}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:45;
  display:grid;grid-template-columns:repeat(5,1fr);
  background:rgba(255,255,255,.97);backdrop-filter:blur(6px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tab a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  padding:9px 2px 8px;font-size:10px;color:var(--ink-2);min-height:56px;
  transition:color .18s var(--ease);
}
.mobile-tab a i{font-size:17px}
.mobile-tab a:hover,.mobile-tab a.active{color:var(--brand)}
@media (min-width:768px){ .mobile-tab{display:none} }
@media (max-width:767px){
  body{padding-bottom:80px}
  .article-head h1{font-size:24px}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:18px}
  .article-card{padding:22px 18px}
}

@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important}
  .btn:hover,.post-card:hover{transform:none}
  .post-card:hover .post-cover img{transform:none}
}

/* roulang page: category1 */
:root{
    --brand:#F0592B;
    --brand-deep:#C9411A;
    --accent:#0E9F8A;
    --sun:#FFC24B;
    --ink:#14161A;
    --ink-2:#4A4F57;
    --line:#E4E0D9;
    --paper:#FAF8F5;
    --card:#FFFFFF;
    --dark-text:#EDEAE4;
    --radius-sm:10px;
    --radius:16px;
    --radius-lg:20px;
    --shadow:0 1px 2px rgba(20,22,26,.06), 0 8px 24px rgba(20,22,26,.06);
    --shadow-hover:0 2px 4px rgba(20,22,26,.08), 0 16px 32px rgba(20,22,26,.12);
    --ease:cubic-bezier(.2,.7,.3,1);
    --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    --font-num:"Inter",ui-monospace,SFMono-Regular,Menlo,monospace;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
  body{
    margin:0;
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.85;
    color:var(--ink);
    background:var(--paper);
    padding-bottom:72px;
    -webkit-font-smoothing:antialiased;
  }
  @media (min-width:768px){ body{font-size:17px;padding-bottom:0} }

  body img{max-width:100%;display:block}
  body a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
  body a:hover{color:var(--brand-deep)}
  body h1,body h2,body h3,body h4{letter-spacing:-.01em;font-weight:800;line-height:1.3;margin:0}
  body p{margin:0 0 1.1em}
  body p:last-child{margin-bottom:0}
  body ul{margin:0;padding:0}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

  .shell{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
  @media (min-width:768px){ .shell{padding:0 24px} }

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:rgba(255,255,255,.92);
    -webkit-backdrop-filter:blur(8px);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .25s var(--ease);
  }
  .site-header.is-scrolled{box-shadow:0 1px 2px rgba(20,22,26,.06), 0 10px 22px rgba(20,22,26,.07)}
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px}
  .logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:16px;white-space:nowrap}
  .logo:hover{color:var(--ink)}
  .brand-mark{
    display:inline-flex;align-items:center;justify-content:center;
    width:38px;height:38px;border-radius:10px;
    background:var(--brand);color:#fff;
    font-family:var(--font-num);font-size:12px;font-weight:800;letter-spacing:.04em;flex:none;
  }
  .logo-text{letter-spacing:-.01em}
  .nav-main{display:none}
  @media (min-width:1024px){
    .nav-main{display:flex;align-items:center;gap:4px}
    .logo{font-size:17px}
  }
  .nav-main a{
    position:relative;display:inline-flex;align-items:center;
    height:44px;padding:0 14px;border-radius:var(--radius-sm);
    color:var(--ink-2);font-size:15px;font-weight:600;
    transition:color .2s var(--ease),background .2s var(--ease);
  }
  .nav-main a:hover{color:var(--brand);background:rgba(240,89,43,.07)}
  .nav-main a.active{color:var(--brand)}
  .nav-main a.active::after{
    content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;border-radius:2px;background:var(--brand);
  }
  .header-actions{display:flex;align-items:center;gap:10px}
  .header-actions .btn-sm{display:none}
  @media (min-width:1024px){ .header-actions .btn-sm{display:inline-flex} }

  .nav-toggle{
    display:inline-flex;align-items:center;justify-content:center;
    width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-sm);
    background:#fff;color:var(--ink);cursor:pointer;
    transition:border-color .2s var(--ease),color .2s var(--ease);
  }
  .nav-toggle:hover{border-color:var(--accent);color:var(--accent)}
  @media (min-width:768px){ .nav-toggle{display:none} }

  .mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:8px 0 16px}
  .mobile-drawer.open{display:block}
  .mobile-drawer a{
    display:flex;align-items:center;gap:10px;
    min-height:48px;padding:0 16px;
    color:var(--ink-2);font-size:16px;font-weight:600;
    border-radius:var(--radius-sm);
  }
  .mobile-drawer a:hover{background:var(--paper);color:var(--brand)}
  .mobile-drawer a.active{color:var(--brand)}
  .mobile-drawer a i{width:18px;text-align:center;color:var(--accent)}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:46px;padding:0 24px;border-radius:var(--radius-sm);
    font-size:15px;font-weight:600;border:1px solid transparent;
    cursor:pointer;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-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow)}
  .btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover)}
  .btn-primary:active{transform:translateY(1px);box-shadow:none}
  .btn-outline{background:#fff;border-color:var(--line);color:var(--ink)}
  .btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
  .btn-outline:active{transform:translateY(1px)}
  .btn-ghost-light{background:transparent;border-color:rgba(237,234,228,.4);color:#fff}
  .btn-ghost-light:hover{border-color:var(--sun);color:var(--sun);transform:translateY(-1px)}
  .btn-ghost-light:active{transform:translateY(1px)}
  .btn-sm{min-height:42px;padding:0 18px;font-size:14px}

  /* ---------- 分类页首屏 ---------- */
  .page-hero{position:relative;overflow:hidden;background:var(--ink);color:var(--dark-text)}
  .hero-media{
    position:absolute;inset:0;
    background-image:
      linear-gradient(100deg,rgba(20,22,26,.94) 0%,rgba(20,22,26,.78) 42%,rgba(20,22,26,.34) 100%),
      linear-gradient(0deg,rgba(240,89,43,.08),rgba(240,89,43,.08)),
      url("/assets/images/backpic/back-2.webp");
    background-size:cover;background-position:center;
  }
  .hero-inner{position:relative;z-index:2;padding:56px 0}
  @media (min-width:768px){ .hero-inner{padding:88px 0 96px} }
  .hero-copy{max-width:720px}
  .badge{
    display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;
    border-radius:999px;border:1px solid rgba(14,159,138,.75);
    background:rgba(14,159,138,.14);color:#7FE3D2;
    font-size:13px;font-weight:600;letter-spacing:.01em;
  }
  body h1.hero-title{
    font-size:30px;line-height:1.3;color:#fff;margin:18px 0 14px;font-weight:800;
  }
  @media (min-width:768px){ body h1.hero-title{font-size:44px;line-height:1.28} }
  .hero-sub{font-size:16px;line-height:1.85;color:#D6D2CA;margin:0 0 26px;max-width:600px}
  @media (min-width:768px){ .hero-sub{font-size:17px} }
  .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px}
  .hero-points{display:flex;flex-wrap:wrap;gap:8px 22px;list-style:none;font-size:14px;color:#C9C5BD}
  .hero-points li{display:inline-flex;align-items:center;gap:8px}
  .hero-points i{color:var(--sun);font-size:13px}

  /* ---------- 板块通用 ---------- */
  .section{padding:48px 0}
  @media (min-width:768px){ .section{padding:80px 0} }
  .section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .section-dark{background:var(--ink);color:var(--dark-text)}
  body h2.h2{
    position:relative;padding-left:20px;margin:0 0 14px;
    font-size:24px;line-height:1.32;color:var(--ink);
  }
  body h2.h2::before{
    content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--brand);
  }
  @media (min-width:768px){ body h2.h2{font-size:32px} }
  .section-dark h2.h2{color:#fff}
  .section-lead{max-width:720px;font-size:16px;color:var(--ink-2);margin:0 0 32px}
  @media (min-width:768px){ .section-lead{font-size:17px;margin-bottom:44px} }
  .section-dark .section-lead{color:#B9B4AC}

  body h3{font-size:19px;line-height:1.4;color:var(--ink);margin:0 0 8px}
  @media (min-width:768px){ body h3{font-size:22px} }

  /* ---------- 步骤流 ---------- */
  .step-grid{display:grid;grid-template-columns:1fr;gap:20px}
  @media (min-width:768px){ .step-grid{grid-template-columns:repeat(2,1fr);gap:24px} }
  .step-card{
    position:relative;background:var(--card);border:1px solid var(--line);
    border-radius:var(--radius);padding:26px 24px 24px;
    box-shadow:var(--shadow);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D6D0C6}
  @media (min-width:768px){ .step-card:nth-child(even){margin-top:32px} }
  .step-num{
    display:inline-flex;align-items:center;justify-content:center;
    width:52px;height:52px;border-radius:12px;margin-bottom:16px;
    background:var(--sun);color:var(--ink);
    font-family:var(--font-num);font-size:20px;font-weight:800;letter-spacing:.02em;
  }
  .step-card p{font-size:15px;color:var(--ink-2);margin:0}
  @media (min-width:768px){ .step-card p{font-size:16px} }
  .step-tip{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);font-size:14px;color:var(--ink-2)}
  .step-tip strong{color:var(--brand);font-weight:700}

  /* ---------- 注意事项 ---------- */
  .note-list{display:grid;grid-template-columns:1fr;gap:14px}
  @media (min-width:768px){ .note-list{grid-template-columns:repeat(3,1fr);gap:20px} }
  .note{
    display:flex;gap:14px;align-items:flex-start;
    background:rgba(14,159,138,.06);
    border:1px solid rgba(14,159,138,.18);
    border-left:4px solid var(--accent);
    border-radius:12px;padding:18px 20px;
  }
  .note i{color:var(--accent);font-size:17px;margin-top:5px;flex:none}
  .note h4{font-size:15px;font-weight:700;color:var(--ink);margin:0 0 6px}
  .note p{font-size:14px;color:var(--ink-2);margin:0;line-height:1.8}

  /* ---------- 栏目对照卡片 ---------- */
  .card-wall{display:grid;grid-template-columns:1fr;gap:20px}
  @media (min-width:640px){ .card-wall{grid-template-columns:repeat(2,1fr)} }
  @media (min-width:1024px){ .card-wall{grid-template-columns:repeat(3,1fr);gap:24px} }
  .card{
    display:flex;flex-direction:column;overflow:hidden;
    background:var(--card);border:1px solid var(--line);
    border-radius:var(--radius);box-shadow:var(--shadow);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease);
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
  .card-media{
    aspect-ratio:16/9;overflow:hidden;
    background:linear-gradient(135deg,var(--paper),#F3EFE9);
  }
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
  .card:hover .card-media img{transform:scale(1.03)}
  .card-body{display:flex;flex-direction:column;gap:10px;padding:20px 22px 22px;flex:1}
  .tag{
    display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
    background:rgba(14,159,138,.1);color:var(--accent);
    font-size:12px;font-weight:700;letter-spacing:.02em;width:fit-content;
  }
  .card-body h3{font-size:18px;margin:0}
  .card-body p{font-size:15px;color:var(--ink-2);margin:0;line-height:1.8}
  .card-link{
    margin-top:auto;padding-top:12px;font-size:14px;font-weight:700;color:var(--brand);
    display:inline-flex;align-items:center;gap:6px;min-height:44px;
  }
  .card-link:hover{color:var(--brand-deep)}
  .card-link i{font-size:12px}

  /* ---------- 问答 ---------- */
  .faq-wrap{max-width:880px}
  .faq-list{border-top:1px solid var(--line)}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    min-height:60px;padding:16px 0;
    font-size:16px;font-weight:700;color:var(--ink);
    cursor:pointer;list-style:none;
    transition:color .2s var(--ease);
  }
  @media (min-width:768px){ .faq-item summary{font-size:17px} }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{color:var(--brand)}
  .faq-item summary i{color:var(--ink-2);font-size:15px;transition:transform .25s var(--ease),color .2s var(--ease);flex:none}
  .faq-item[open] summary{color:var(--brand)}
  .faq-item[open] summary i{transform:rotate(45deg);color:var(--brand)}
  .faq-body{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:760px}
  @media (min-width:768px){ .faq-body{font-size:16px} }

  /* ---------- CTA 带 ---------- */
  .cta-band{background:var(--ink);color:var(--dark-text);padding:48px 0}
  @media (min-width:768px){ .cta-band{padding:64px 0} }
  .cta-inner{
    display:flex;flex-direction:column;gap:22px;
    background:rgba(255,255,255,.045);
    border:1px solid rgba(237,234,228,.16);
    border-radius:var(--radius-lg);padding:30px 24px;
  }
  @media (min-width:768px){
    .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:32px;padding:40px}
  }
  .cta-inner h2{font-size:23px;color:#fff;margin:0 0 8px}
  @media (min-width:768px){ .cta-inner h2{font-size:28px} }
  .cta-inner p{color:#B9B4AC;font-size:15px;margin:0}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:none}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:var(--dark-text);padding:56px 0 30px}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:28px}
  @media (min-width:640px){ .footer-grid{grid-template-columns:repeat(2,1fr)} }
  @media (min-width:1024px){ .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:32px} }
  .footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:16px;font-weight:800;color:#fff;margin-bottom:12px}
  @media (min-width:768px){ .footer-brand{font-size:17px} }
  .site-footer p{font-size:14px;color:#B9B4AC;margin:0;max-width:320px;line-height:1.8}
  .footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:12px}
  .footer-links{list-style:none;display:flex;flex-direction:column;gap:4px}
  .footer-links a{display:inline-flex;align-items:center;min-height:40px;color:#C9C5BD;font-size:14px}
  .footer-links a:hover{color:var(--sun)}
  .footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:#B9B4AC;min-height:36px;line-height:1.7}
  .footer-contact i{color:var(--accent);margin-top:6px;flex:none}
  .footer-bottom{
    margin-top:32px;padding-top:20px;border-top:1px solid rgba(237,234,228,.14);
    display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:space-between;
    font-size:13px;color:#8F8B85;
  }

  /* ---------- 移动底部 Tab ---------- */
  .mobile-tab{
    position:fixed;left:0;right:0;bottom:0;z-index:60;
    display:flex;background:#fff;border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  @media (min-width:768px){ .mobile-tab{display:none} }
  .mobile-tab a{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
    height:56px;font-size:10px;font-weight:600;color:var(--ink-2);text-decoration:none;
  }
  .mobile-tab a i{font-size:16px}
  .mobile-tab a.active{color:var(--brand)}
  .mobile-tab a:hover{color:var(--brand)}

  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
    .card:hover,.step-card:hover,.btn:hover{transform:none !important}
  }

/* roulang page: category2 */
:root{
  --brand:#F0592B;
  --brand-deep:#C9411A;
  --accent:#0E9F8A;
  --sun:#FFC24B;
  --ink:#14161A;
  --ink-2:#4A4F57;
  --line:#E4E0D9;
  --paper:#FAF8F5;
  --card:#FFFFFF;
  --dark-text:#EDEAE4;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(20,22,26,.06),0 8px 24px rgba(20,22,26,.06);
  --shadow-2:0 2px 4px rgba(20,22,26,.08),0 16px 32px rgba(20,22,26,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:0;
  padding-bottom:72px;
}
@media (min-width:1024px){ body{padding-bottom:0;} }
@media (max-width:767px){ body{font-size:16px;} }
img{max-width:100%;display:block;}
h1,h2,h3,h4{margin:0;line-height:1.28;letter-spacing:-0.01em;font-weight:700;}
p{margin:0;}
a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
a:hover{color:var(--brand-deep);}
ul{margin:0;padding:0;list-style:none;}
button{font:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

.shell{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px;}
@media (min-width:768px){ .shell{padding-left:24px;padding-right:24px;} }
@media (min-width:1280px){ .shell{max-width:1280px;} }

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 1px 0 rgba(20,22,26,.04),0 10px 28px rgba(20,22,26,.07);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:700;font-size:17px;white-space:nowrap;}
.brand-mark{
  width:38px;height:38px;flex:none;border-radius:11px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:12px;font-weight:700;letter-spacing:.05em;
}
.brand:hover{color:var(--ink);}

.nav-main{display:none;align-items:center;gap:2px;}
@media (min-width:1024px){ .nav-main{display:flex;} }
.nav-main a{
  position:relative;display:flex;align-items:center;min-height:44px;padding:10px 14px;
  font-size:15px;color:var(--ink-2);text-decoration:none;border-radius:8px;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-main a:hover{color:var(--brand);background:rgba(240,89,43,.06);}
.nav-main a.active{color:var(--ink);font-weight:600;}
.nav-main a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:var(--brand);
}

.header-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink);cursor:pointer;transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}
@media (min-width:1024px){ .nav-toggle{display:none;} }

.drawer{
  display:none;border-bottom:1px solid var(--line);background:#fff;
  box-shadow:0 16px 32px rgba(20,22,26,.08);
}
.drawer.is-open{display:block;}
.drawer .drawer-inner{padding:10px 0 18px;}
.drawer a{
  display:flex;align-items:center;min-height:48px;padding:10px 6px;
  color:var(--ink);text-decoration:none;font-size:16px;border-bottom:1px solid var(--line);
}
.drawer a:last-child{border-bottom:none;}
.drawer a:hover{color:var(--brand);}
.drawer a.active{color:var(--brand);font-weight:600;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;text-decoration:none;cursor:pointer;
  border:1px solid transparent;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 1px 2px rgba(20,22,26,.12);}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);background:#fff;}
.btn-on-dark{background:var(--sun);color:var(--ink);}
.btn-on-dark:hover{background:#FFB629;color:var(--ink);transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(237,234,228,.4);}
.btn-outline-light:hover{border-color:var(--sun);color:var(--sun);}
.btn-sm{padding:9px 16px;font-size:14px;min-height:44px;}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0;}
@media (max-width:767px){ .section{padding:48px 0;} }
.section-dark{background:var(--ink);color:var(--dark-text);}
.section-dark h2,.section-dark h3{color:#fff;}
.section-white{background:#fff;}

.sec-head{max-width:800px;}
.sec-title{
  display:flex;align-items:center;gap:14px;font-size:32px;font-weight:700;
}
@media (max-width:767px){ .sec-title{font-size:24px;gap:10px;} }
.sec-num{
  display:inline-grid;place-items:center;flex:none;
  min-width:42px;height:42px;padding:0 8px;border-radius:10px;
  background:var(--sun);color:var(--ink);
  font-size:16px;font-weight:700;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  letter-spacing:.02em;
}
@media (max-width:767px){ .sec-num{min-width:36px;height:36px;font-size:14px;} }
.sec-sub{margin-top:14px;color:var(--ink-2);font-size:17px;line-height:1.85;}
.section-dark .sec-sub{color:rgba(237,234,228,.78);}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;
  padding:48px 0 64px;
  background:
    radial-gradient(900px 320px at 88% -18%, rgba(240,89,43,.10), transparent 70%),
    radial-gradient(700px 300px at 6% 110%, rgba(14,159,138,.10), transparent 70%),
    var(--paper);
  border-bottom:1px solid var(--line);
}
@media (max-width:767px){ .page-head{padding:28px 0 44px;} }
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);}
.crumbs a{color:var(--ink-2);text-decoration:none;}
.crumbs a:hover{color:var(--brand);}
.crumbs span.sep{color:#B9B3A9;}
.crumbs .current{color:var(--ink);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:rgba(14,159,138,.10);color:#0B7C6C;
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.page-head h1{
  margin-top:18px;font-size:44px;font-weight:700;
}
@media (max-width:767px){ .page-head h1{font-size:30px;margin-top:14px;} }
.page-head .lead{margin-top:16px;max-width:800px;font-size:17px;color:var(--ink-2);line-height:1.85;}
.head-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--ink-2);
}
.tag i{color:var(--accent);font-size:12px;}
.head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}

/* ---------- 功能网格 ---------- */
.feat-major{display:grid;gap:24px;margin-top:44px;}
@media (min-width:1024px){
  .feat-major{grid-template-columns:7fr 5fr;align-items:start;}
  .feat-major > .card:last-child{margin-top:32px;}
}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#DAD4CA;}
.card-body{padding:28px;}
@media (max-width:767px){ .card-body{padding:22px;} }
.card-body h3{font-size:22px;}
@media (max-width:767px){ .card-body h3{font-size:19px;} }
.card-body p{margin-top:12px;color:var(--ink-2);font-size:16px;line-height:1.85;}
.icon-sq{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(14,159,138,.10);color:var(--accent);font-size:18px;
}
.card-head{display:flex;align-items:center;gap:12px;}
.card-kicker{
  font-size:12px;font-weight:700;color:var(--ink-2);letter-spacing:.06em;text-transform:uppercase;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
}
.check-list{margin-top:18px;display:grid;gap:10px;}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2);line-height:1.75;}
.check-list li i{color:var(--accent);font-size:13px;margin-top:6px;flex:none;}

.feat-minor{display:grid;gap:18px;margin-top:24px;}
@media (min-width:640px){ .feat-minor{grid-template-columns:1fr 1fr;} }
@media (min-width:1024px){ .feat-minor{grid-template-columns:repeat(4,1fr);} }
.mini{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);
  transition:box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.mini:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#DAD4CA;}
.mini h4{margin-top:14px;font-size:18px;}
.mini p{margin-top:8px;font-size:15px;color:var(--ink-2);line-height:1.8;}
.mini .num-chip{
  width:34px;height:34px;border-radius:9px;background:rgba(255,194,75,.9);color:var(--ink);
  display:grid;place-items:center;font-size:13px;font-weight:700;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
}

/* ---------- 图文交错 ---------- */
.zig{display:grid;gap:28px;align-items:center;margin-top:44px;}
@media (min-width:1024px){ .zig{grid-template-columns:6fr 6fr;gap:48px;} }
.zig-media{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);background:linear-gradient(135deg,var(--paper),#F3EFE9);}
.zig-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s var(--ease);}
.zig-media:hover img{transform:scale(1.03);}
.zig-text h3{font-size:24px;}
@media (max-width:767px){ .zig-text h3{font-size:20px;} }
.zig-text p{margin-top:14px;color:var(--ink-2);font-size:16px;}
.zig + .zig{margin-top:56px;}
@media (min-width:1024px){
  .zig.reverse .zig-media{order:2;}
  .zig.reverse .zig-text{order:1;}
}
.step-line{margin-top:20px;display:grid;gap:14px;}
.step-line li{display:flex;gap:12px;align-items:flex-start;}
.step-line .dot{
  width:26px;height:26px;flex:none;border-radius:8px;background:rgba(240,89,43,.10);color:var(--brand);
  display:grid;place-items:center;font-size:12px;font-weight:700;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
}
.step-line .txt{font-size:15px;color:var(--ink-2);line-height:1.75;}
.step-line .txt b{color:var(--ink);font-weight:600;}

/* ---------- 对比表 ---------- */
.table-wrap{
  margin-top:36px;overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card);
  background:#fff;box-shadow:var(--shadow-1);-webkit-overflow-scrolling:touch;
}
table.compare{width:100%;min-width:720px;border-collapse:separate;border-spacing:0;font-size:15px;}
table.compare caption{caption-side:top;text-align:left;padding:16px 18px;font-size:13px;color:var(--ink-2);}
table.compare thead th{
  background:var(--ink);color:#fff;text-align:left;font-weight:600;
  padding:16px 18px;font-size:14px;white-space:nowrap;
}
table.compare thead th:first-child{border-top-left-radius:15px;}
table.compare thead th:last-child{border-top-right-radius:15px;}
table.compare tbody td{
  padding:16px 18px;background:#fff;color:var(--ink-2);
  border-top:1px solid var(--line);vertical-align:top;line-height:1.7;
}
table.compare tbody tr:nth-child(even) td{background:var(--paper);}
table.compare tbody td:first-child{
  position:sticky;left:0;z-index:2;background:#fff;color:var(--ink);font-weight:600;
  box-shadow:1px 0 0 var(--line);white-space:nowrap;
}
table.compare tbody tr:nth-child(even) td:first-child{background:#F4F1EC;}
.hint{margin-top:14px;font-size:13px;color:var(--ink-2);}

/* ---------- 方案小结 ---------- */
.plans{display:grid;gap:22px;margin-top:40px;}
@media (min-width:1024px){ .plans{grid-template-columns:repeat(3,1fr);align-items:stretch;} }
.plan{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:box-shadow .2s var(--ease),transform .2s var(--ease);
}
.plan:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.plan.featured{border:1.5px solid var(--brand);}
.plan .flag{
  position:absolute;top:-13px;left:24px;background:var(--brand);color:#fff;
  font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;
}
.plan h3{font-size:20px;}
.plan .plan-desc{margin-top:10px;font-size:15px;color:var(--ink-2);}
.plan ul{margin-top:18px;display:grid;gap:10px;flex:1;}
.plan ul li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);line-height:1.75;}
.plan ul li i{color:var(--accent);font-size:13px;margin-top:6px;flex:none;}
.plan .price{
  margin-top:22px;padding-top:18px;border-top:1px solid var(--line);
  font-size:15px;color:var(--ink);font-weight:600;
}
.plan .price small{display:block;margin-top:4px;font-size:13px;color:var(--ink-2);font-weight:400;}

/* ---------- FAQ ---------- */
.faq{margin-top:36px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:none;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink);min-height:44px;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);background:rgba(240,89,43,.03);}
.faq-plus{position:relative;width:16px;height:16px;flex:none;color:var(--ink-2);transition:transform .25s var(--ease),color .25s var(--ease);}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:currentColor;border-radius:2px;}
.faq-plus::before{left:0;right:0;top:7px;height:2px;}
.faq-plus::after{top:0;bottom:0;left:7px;width:2px;}
.faq-item[open] .faq-plus{transform:rotate(45deg);color:var(--brand);}
.faq-body{padding:0 24px 22px;font-size:15px;color:var(--ink-2);line-height:1.85;}
@media (max-width:767px){
  .faq-item summary{padding:16px 18px;font-size:16px;}
  .faq-body{padding:0 18px 18px;}
}

/* ---------- CTA ---------- */
.cta-band{padding:64px 0;}
@media (max-width:767px){ .cta-band{padding:40px 0;} }
.cta-inner{
  background:var(--ink);color:var(--dark-text);
  border-radius:var(--radius-lg);padding:48px;position:relative;overflow:hidden;
}
@media (max-width:767px){ .cta-inner{padding:30px 22px;} }
.cta-inner::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,89,43,.35),transparent 68%);
}
.cta-inner h2{font-size:30px;color:#fff;position:relative;z-index:1;}
@media (max-width:767px){ .cta-inner h2{font-size:23px;} }
.cta-inner p{margin-top:14px;max-width:640px;color:rgba(237,234,228,.78);font-size:16px;position:relative;z-index:1;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;position:relative;z-index:1;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--dark-text);padding:64px 0 24px;margin-top:0;}
@media (max-width:767px){ .site-footer{padding:44px 0 20px;} }
.footer-grid{display:grid;gap:32px;}
@media (min-width:768px){ .footer-grid{grid-template-columns:repeat(2,1fr);} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;} }
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;}
.footer-brand .brand-mark{background:var(--brand);}
.site-footer p{margin-top:14px;font-size:14px;color:rgba(237,234,228,.72);line-height:1.8;max-width:320px;}
.footer-title{font-size:14px;font-weight:600;color:#fff;letter-spacing:.02em;}
.footer-links{margin-top:16px;display:grid;gap:10px;}
.footer-links a{color:rgba(237,234,228,.76);text-decoration:none;font-size:14px;transition:color .2s var(--ease);}
.footer-links a:hover{color:var(--sun);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(237,234,228,.76);line-height:1.7;}
.footer-contact li i{color:var(--accent);margin-top:5px;flex:none;font-size:13px;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(237,234,228,.14);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(237,234,228,.6);
}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:grid;grid-template-columns:repeat(5,1fr);
  background:rgba(255,255,255,.97);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
@media (min-width:1024px){ .mobile-tab{display:none;} }
.mobile-tab a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  height:56px;text-decoration:none;color:var(--ink-2);font-size:10px;
  transition:color .2s var(--ease);
}
.mobile-tab a i{font-size:16px;}
.mobile-tab a.active{color:var(--brand);font-weight:600;}
.mobile-tab a:hover{color:var(--brand);}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;}
  .card:hover,.mini:hover,.plan:hover,.btn:hover{transform:none;}
}

/* roulang page: category3 */
:root{
    --brand:#F0592B;
    --brand-deep:#C9411A;
    --accent:#0E9F8A;
    --sun:#FFC24B;
    --ink:#14161A;
    --ink-2:#4A4F57;
    --line:#E4E0D9;
    --paper:#FAF8F5;
    --card:#FFFFFF;
    --dark-text:#EDEAE4;
    --radius-card:16px;
    --radius-big:20px;
    --radius-btn:10px;
    --shadow-1:0 1px 2px rgba(20,22,26,.06),0 8px 24px rgba(20,22,26,.06);
    --shadow-2:0 2px 4px rgba(20,22,26,.08),0 16px 32px rgba(20,22,26,.12);
    --ease:cubic-bezier(.2,.7,.3,1);
    --gap:24px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    padding-bottom:76px;
    background:var(--paper);
    color:var(--ink);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.85;
    letter-spacing:0;
  }
  img{display:block;max-width:100%;height:auto;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
  ul,ol{margin:0;}
  h1,h2,h3,h4{margin:0;letter-spacing:-.01em;line-height:1.28;font-weight:800;}
  p{margin:0 0 1.1em;}
  p:last-child{margin-bottom:0;}
  a:focus-visible,button:focus-visible,.tag:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
  ::selection{background:rgba(240,89,43,.18);}

  /* ---------- 容器与排版 ---------- */
  .shell{width:100%;max-width:1200px;margin:0 auto;padding:0 16px;}
  .h1{font-size:30px;font-weight:800;}
  .h2{font-size:24px;}
  .h3{font-size:19px;}
  .lead{font-size:16px;color:var(--ink-2);max-width:760px;}
  .sec-title{position:relative;padding-left:18px;margin-bottom:20px;font-size:24px;}
  .sec-title::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--brand);}
  .sec-title.light{color:#FFFFFF;}
  .sec-title.light::before{background:var(--sun);}
  .sec-head{margin-bottom:32px;}
  .section{padding:48px 0;}
  .section-tight{padding:36px 0;}
  .divider{height:1px;background:var(--line);border:0;margin:0;}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:rgba(255,255,255,.94);
    -webkit-backdrop-filter:blur(8px);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .25s var(--ease);
  }
  .site-header.scrolled{box-shadow:0 6px 18px rgba(20,22,26,.07);}
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px;}
  .logo{display:flex;align-items:center;gap:10px;min-height:44px;}
  .brand-mark{
    display:inline-grid;place-items:center;
    width:38px;height:38px;border-radius:11px;
    background:var(--brand);color:#fff;
    font-size:12px;font-weight:800;letter-spacing:.06em;
    flex:0 0 auto;
  }
  .logo-text{font-size:17px;font-weight:800;color:var(--ink);white-space:nowrap;}
  .nav-main{display:none;}
  .nav-main a{
    position:relative;
    display:inline-flex;align-items:center;
    min-height:44px;padding:0 2px;
    font-size:15px;font-weight:600;color:var(--ink-2);
    transition:color .2s var(--ease);
  }
  .nav-main a::after{
    content:"";position:absolute;left:0;right:0;bottom:-14px;height:2px;
    background:var(--brand);transform:scaleX(0);transform-origin:left;
    transition:transform .22s var(--ease);
  }
  .nav-main a:hover{color:var(--brand);}
  .nav-main a:hover::after{transform:scaleX(1);}
  .nav-main a.active{color:var(--ink);}
  .nav-main a.active::after{transform:scaleX(1);}
  .header-cta{display:flex;align-items:center;gap:10px;}
  .nav-toggle{
    display:inline-grid;place-items:center;
    width:44px;height:44px;border-radius:var(--radius-btn);
    border:1px solid var(--line);background:#fff;color:var(--ink);
    transition:border-color .2s var(--ease),color .2s var(--ease);
  }
  .nav-toggle:hover{border-color:var(--accent);color:var(--accent);}
  .nav-toggle:active{transform:translateY(1px);}
  .drawer{display:none;border-top:1px solid var(--line);background:#fff;}
  .drawer.open{display:block;}
  .drawer-inner{padding:16px 16px 24px;}
  .drawer-list{display:grid;gap:4px;list-style:none;padding:0;margin:0 0 16px;}
  .drawer-list a{
    display:flex;align-items:center;justify-content:space-between;
    min-height:48px;padding:0 14px;border-radius:var(--radius-btn);
    font-size:16px;font-weight:600;color:var(--ink-2);
    transition:background .2s var(--ease),color .2s var(--ease);
  }
  .drawer-list a:hover{background:var(--paper);color:var(--brand);}
  .drawer-list a.active{background:rgba(240,89,43,.08);color:var(--brand);}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:48px;padding:0 24px;
    border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;
    border:1px solid transparent;
    transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  }
  .btn-sm{min-height:44px;padding:0 18px;font-size:14px;}
  .btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1);}
  .btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-primary:active{transform:translateY(1px);box-shadow:none;}
  .btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);}
  .btn-ghost:hover{border-color:var(--accent);color:var(--accent);}
  .btn-ghost:active{transform:translateY(1px);}
  .btn-sun{background:var(--sun);color:var(--ink);}
  .btn-sun:hover{background:#F5B336;transform:translateY(-1px);}
  .btn-sun:active{transform:translateY(1px);}
  .btn-outline-light{border-color:rgba(237,234,228,.42);color:var(--dark-text);}
  .btn-outline-light:hover{border-color:var(--sun);color:var(--sun);}
  .btn[disabled]{opacity:.5;cursor:not-allowed;}

  /* ---------- 徽章 / 标签 ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;border-radius:999px;
    background:rgba(14,159,138,.1);color:var(--accent);
    font-size:12px;font-weight:700;letter-spacing:.02em;
  }
  .badge-brand{background:rgba(240,89,43,.1);color:var(--brand-deep);}
  .badge-sun{background:rgba(255,194,75,.22);color:#8A5A00;}
  .tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
  .tag{
    display:inline-flex;align-items:center;gap:8px;
    padding:9px 16px;border-radius:999px;
    background:#fff;border:1px solid var(--line);
    font-size:14px;font-weight:600;color:var(--ink-2);
    transition:border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .tag:hover{border-color:var(--accent);color:var(--accent);box-shadow:var(--shadow-1);}
  .tag.is-on{border-color:var(--brand);color:var(--brand);background:rgba(240,89,43,.06);}

  /* ---------- 页头横幅 ---------- */
  .page-hero{
    position:relative;
    background-image:
      linear-gradient(100deg,rgba(20,22,26,.88) 0%,rgba(20,22,26,.66) 46%,rgba(240,89,43,.34) 100%),
      url('/assets/images/backpic/back-3.png');
    background-size:cover;
    background-position:center;
    border-radius:0 0 20px 20px;
    overflow:hidden;
  }
  .page-hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(240,89,43,.06),rgba(20,22,26,.18));
    pointer-events:none;
  }
  .page-hero-inner{position:relative;z-index:2;padding:40px 16px 48px;max-width:1200px;}
  .page-hero-content{max-width:680px;color:#fff;}
  .crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(237,234,228,.75);margin-bottom:18px;}
  .crumb a{min-height:44px;display:inline-flex;align-items:center;transition:color .2s var(--ease);}
  .crumb a:hover{color:var(--sun);}
  .crumb-current{color:#fff;font-weight:600;}
  .hero-badge{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:999px;
    border:1px solid rgba(14,159,138,.55);
    background:rgba(14,159,138,.16);
    color:#EAFFF9;font-size:13px;font-weight:600;margin-bottom:16px;
  }
  .page-hero h1{color:#fff;font-size:28px;margin-bottom:14px;}
  .hero-sub{color:rgba(237,234,228,.88);font-size:16px;margin-bottom:24px;max-width:560px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px;}
  .hero-points{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:8px 22px;font-size:13px;color:rgba(237,234,228,.86);}
  .hero-points li{display:flex;align-items:center;gap:8px;}
  .hero-points i{color:var(--sun);font-size:12px;}

  /* ---------- 步骤 / 要点 ---------- */
  .step-no{
    display:inline-grid;place-items:center;
    min-width:46px;height:46px;padding:0 10px;border-radius:12px;
    background:var(--sun);color:var(--ink);
    font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
    font-size:27px;font-weight:700;line-height:1;
    margin-bottom:16px;
  }
  .check{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:10px;}
  .check li{display:flex;gap:10px;align-items:flex-start;font-size:15px;line-height:1.75;color:var(--ink-2);}
  .check i{color:var(--accent);font-size:13px;margin-top:7px;flex:0 0 auto;}

  /* ---------- 错位图文 ---------- */
  .zig-list{display:grid;gap:40px;}
  .zig{display:grid;gap:22px;}
  .zig-media{overflow:hidden;border-radius:var(--radius-big);box-shadow:var(--shadow-1);background:linear-gradient(140deg,var(--paper),#F3EFE9);}
  .zig-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s var(--ease);}
  .zig:hover .zig-media img{transform:scale(1.03);}
  .zig-body h3{margin-bottom:12px;}
  .zig-body p{color:var(--ink-2);font-size:16px;}

  /* ---------- 深色带 ---------- */
  .band-dark{background:var(--ink);color:var(--dark-text);padding:48px 0;}
  .band-dark p{color:rgba(237,234,228,.82);}
  .stat-grid{display:grid;gap:20px;margin-top:28px;}
  .stat-card{
    background:rgba(255,255,255,.04);
    border:1px solid rgba(237,234,228,.14);
    border-radius:var(--radius-card);
    padding:24px;
    transition:border-color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
  }
  .stat-card:hover{border-color:rgba(255,194,75,.5);transform:translateY(-2px);background:rgba(255,255,255,.06);}
  .stat-num{
    font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
    font-size:32px;font-weight:700;color:var(--sun);line-height:1.1;display:block;margin-bottom:10px;
  }
  .stat-card h3{color:#fff;font-size:18px;margin-bottom:8px;}
  .stat-card p{font-size:14px;margin:0;color:rgba(237,234,228,.78);}

  /* ---------- 分栏与清单 ---------- */
  .split{display:grid;gap:28px;}
  .panel{
    background:var(--card);border:1px solid var(--line);
    border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-1);
  }
  .checklist{list-style:none;padding:0;margin:0;display:grid;gap:14px;}
  .checklist li{
    display:flex;gap:12px;align-items:flex-start;
    padding:14px 16px;border-radius:12px;background:#fff;border:1px solid var(--line);
    font-size:15px;color:var(--ink);line-height:1.75;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
  }
  .checklist li:hover{border-color:rgba(14,159,138,.5);box-shadow:var(--shadow-1);transform:translateY(-2px);}
  .checklist i{color:var(--accent);font-size:14px;margin-top:6px;flex:0 0 auto;}
  .tip-card{
    background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent);
    border-radius:var(--radius-card);padding:22px 24px;box-shadow:var(--shadow-1);
  }
  .tip-card h3{font-size:17px;margin-bottom:10px;}
  .tip-card p{font-size:14px;color:var(--ink-2);}
  .tip-card .mini-note{display:block;margin-top:14px;font-size:13px;color:var(--ink-2);}

  /* ---------- 卡片 ---------- */
  .grid-2{display:grid;gap:24px;}
  .card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    overflow:hidden;box-shadow:var(--shadow-1);
    transition:box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
  }
  .card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#D8D2C8;}
  .card-link{display:block;height:100%;}
  .card-media{overflow:hidden;background:linear-gradient(140deg,var(--line),var(--paper));}
  .card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s var(--ease);}
  .card:hover .card-media img{transform:scale(1.03);}
  .card-body{padding:20px 22px 22px;}
  .card-title{font-size:18px;margin:12px 0 10px;}
  .card-text{font-size:15px;color:var(--ink-2);margin-bottom:16px;}
  .card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--ink-2);border-top:1px solid var(--line);padding-top:14px;}
  .card-more{color:var(--brand);font-weight:700;display:inline-flex;align-items:center;gap:6px;transition:color .2s var(--ease),gap .2s var(--ease);}
  .card:hover .card-more{color:var(--brand-deep);gap:10px;}

  /* ---------- CTA ---------- */
  .cta-band{background:var(--ink);padding:56px 0;}
  .cta-box{
    background:var(--brand);border-radius:var(--radius-big);
    padding:32px 24px;color:#fff;
    box-shadow:0 18px 40px rgba(240,89,43,.24);
  }
  .cta-box h2{color:#fff;font-size:24px;margin-bottom:12px;}
  .cta-box p{color:rgba(255,255,255,.9);font-size:16px;margin-bottom:22px;}
  .cta-box .hero-actions{margin-bottom:0;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:var(--dark-text);padding:56px 0 0;margin-top:56px;}
  .footer-grid{display:grid;gap:32px;}
  .footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:14px;}
  .footer-brand p{font-weight:400;font-size:14px;color:rgba(237,234,228,.8);}
  .site-footer p{font-size:14px;color:rgba(237,234,228,.8);max-width:320px;}
  .footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;}
  .footer-links{list-style:none;padding:0;margin:0;display:grid;gap:10px;}
  .footer-links a{font-size:14px;color:rgba(237,234,228,.82);min-height:32px;display:inline-flex;align-items:center;transition:color .2s var(--ease);}
  .footer-links a:hover{color:var(--sun);}
  .footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(237,234,228,.82);}
  .footer-contact i{color:var(--sun);margin-top:5px;font-size:13px;}
  .footer-bottom{
    margin-top:40px;border-top:1px solid rgba(237,234,228,.14);
    padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;
    font-size:13px;color:rgba(237,234,228,.62);
  }

  /* ---------- 移动底部 Tab ---------- */
  .mobile-tab{
    position:fixed;left:0;right:0;bottom:0;z-index:60;
    display:grid;grid-template-columns:repeat(5,1fr);
    background:rgba(255,255,255,.97);
    -webkit-backdrop-filter:blur(10px);
    backdrop-filter:blur(10px);
    border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .mobile-tab a{
    min-height:56px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:10px;font-weight:600;color:var(--ink-2);
    transition:color .2s var(--ease),transform .2s var(--ease);
  }
  .mobile-tab a i{font-size:17px;}
  .mobile-tab a:hover{color:var(--brand);}
  .mobile-tab a:active{transform:translateY(1px);}
  .mobile-tab a.active{color:var(--brand);}

  /* ---------- 断点 ---------- */
  @media (min-width:640px){
    .shell{padding:0 20px;}
    .page-hero-inner{padding:52px 20px 60px;}
    .page-hero h1{font-size:34px;}
    .stat-grid{grid-template-columns:repeat(3,1fr);}
  }
  @media (min-width:768px){
    body{padding-bottom:0;font-size:17px;}
    .shell{padding:0 24px;}
    .h1{font-size:38px;}
    .h2,.sec-title{font-size:28px;}
    .h3{font-size:21px;}
    .header-inner{min-height:72px;}
    .nav-main{display:flex;align-items:center;gap:26px;}
    .nav-toggle{display:none;}
    .drawer{display:none !important;}
    .section{padding:64px 0;}
    .section-tight{padding:44px 0;}
    .band-dark{padding:64px 0;}
    .grid-2{grid-template-columns:repeat(2,1fr);}
    .zig{gap:32px;}
    .footer-grid{grid-template-columns:1.7fr 1fr 1fr 1.3fr;}
    .mobile-tab{display:none;}
    .cta-box{padding:44px 40px;}
  }
  @media (min-width:1024px){
    .h1{font-size:44px;}
    .h2,.sec-title{font-size:32px;}
    .h3{font-size:22px;}
    p{font-size:17px;}
    .section{padding:80px 0;}
    .section-tight{padding:52px 0;}
    .band-dark{padding:80px 0;}
    .page-hero-inner{padding:64px 24px 76px;}
    .page-hero h1{font-size:42px;}
    .hero-sub{font-size:17px;}
    .split{grid-template-columns:7fr 5fr;align-items:start;gap:44px;}
    .zig{grid-template-columns:7fr 5fr;align-items:center;gap:48px;}
    .zig.reverse .zig-media{order:2;}
    .zig.reverse .zig-body{order:1;}
    .zig-list{gap:64px;}
    .zig-media img{aspect-ratio:4/3;}
    .cta-band{padding:72px 0;}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;}
    html{scroll-behavior:auto;}
    .card:hover,.checklist li:hover,.stat-card:hover{transform:none;}
  }

/* roulang page: category4 */
:root{
    --brand:#F0592B;
    --brand-deep:#C9411A;
    --accent:#0E9F8A;
    --sun:#FFC24B;
    --ink:#14161A;
    --ink-2:#4A4F57;
    --line:#E4E0D9;
    --paper:#FAF8F5;
    --card:#FFFFFF;
    --radius-card:16px;
    --radius-lg:20px;
    --radius-btn:10px;
    --shadow-sm:0 1px 2px rgba(20,22,26,.06), 0 8px 24px rgba(20,22,26,.06);
    --shadow-lg:0 2px 4px rgba(20,22,26,.08), 0 16px 32px rgba(20,22,26,.12);
    --ease:cubic-bezier(.2,.7,.3,1);
  }
  *{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    font-size:17px;
    line-height:1.85;
    color:var(--ink);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{display:block;max-width:100%;height:auto;border:0}
  a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease)}
  a:hover{color:var(--brand-deep)}
  button,input,textarea,select{font:inherit;color:inherit}
  h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:-0.01em}
  p{margin:0}
  ul,ol{margin:0;padding:0;list-style:none}
  summary{list-style:none}
  summary::-webkit-details-marker{display:none}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

  /* 容器 */
  .shell{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
  @media (min-width:768px){ .shell{padding:0 24px} }
  @media (min-width:1280px){ .shell{max-width:1280px} }

  /* 顶部导航 */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:rgba(255,255,255,.92);
    -webkit-backdrop-filter:blur(8px);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .2s var(--ease);
  }
  .site-header.is-scrolled{box-shadow:0 6px 20px rgba(20,22,26,.07)}
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
  .brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-size:17px;font-weight:700;letter-spacing:-0.01em;white-space:nowrap}
  .brand:hover{color:var(--ink)}
  .brand-mark{
    display:inline-flex;align-items:center;justify-content:center;
    width:34px;height:34px;border-radius:10px;
    background:var(--brand);color:#fff;
    font-size:12px;font-weight:800;letter-spacing:.06em;flex:none;
  }
  .nav-main{display:flex;align-items:center;gap:4px}
  .nav-main a{
    position:relative;
    display:inline-flex;align-items:center;height:44px;padding:0 12px;
    border-radius:8px;color:var(--ink-2);font-size:15px;font-weight:500;
  }
  .nav-main a:hover{color:var(--brand);background:rgba(240,89,43,.07)}
  .nav-main a.active{color:var(--ink);font-weight:600}
  .nav-main a.active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:8px;height:2px;
    background:var(--brand);border-radius:2px;
  }
  .header-actions{display:flex;align-items:center;gap:10px}
  .nav-toggle{
    display:none;align-items:center;justify-content:center;
    width:44px;height:44px;border-radius:10px;
    border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;
    transition:border-color .18s var(--ease),color .18s var(--ease);
  }
  .nav-toggle:hover{border-color:var(--accent);color:var(--accent)}
  .nav-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:6px 0 14px}
  .nav-drawer.is-open{display:block}
  .nav-drawer a{
    display:flex;align-items:center;min-height:48px;
    padding:0 4px;color:var(--ink-2);font-size:15px;font-weight:500;
    border-bottom:1px solid var(--line);
  }
  .nav-drawer a:last-child{border-bottom:0}
  .nav-drawer a.active{color:var(--brand);font-weight:600}
  @media (max-width:1023px){
    .nav-main{display:none}
    .nav-toggle{display:inline-flex}
  }
  @media (min-width:1024px){
    .nav-drawer{display:none !important}
  }

  /* 按钮 */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
    border:1px solid transparent;font-size:15px;font-weight:600;
    cursor:pointer;text-align:center;
    transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  }
  .btn i{font-size:13px}
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(240,89,43,.22)}
  .btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px)}
  .btn-primary:active{transform:translateY(1px);box-shadow:none}
  .btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
  .btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
  .btn-ghost:active{transform:translateY(1px)}
  .btn-sun{background:var(--sun);color:var(--ink)}
  .btn-sun:hover{background:#FFB420;color:var(--ink);transform:translateY(-1px)}
  .btn-sun:active{transform:translateY(1px)}
  .btn-light{background:#fff;color:var(--ink);border-color:transparent}
  .btn-light:hover{background:#F3EFE9;color:var(--brand-deep)}
  .btn-sm{min-height:40px;padding:0 16px;font-size:14px}
  .btn-block{width:100%}

  /* 通用板块 */
  .sec{padding:80px 0}
  @media (max-width:1023px){ .sec{padding:56px 0} }
  @media (max-width:639px){ .sec{padding:44px 0} }
  .sec-white{background:var(--card)}
  .sec-dark{background:var(--ink);color:#EDEAE4}
  .sec-head{margin-bottom:36px}
  .sec-head h2{
    padding-left:16px;border-left:4px solid var(--brand);
    font-size:32px;
  }
  .sec-head p{margin-top:12px;margin-left:20px;color:var(--ink-2);font-size:16px;max-width:780px}
  .sec-dark .sec-head p{color:#B9B4AC}
  .sec-dark .sec-head h2{color:#EDEAE4}
  @media (max-width:639px){
    .sec-head h2{font-size:24px;padding-left:12px;border-left-width:3px}
    .sec-head p{margin-left:15px;font-size:15px}
  }

  /* 徽章 / 标签 */
  .badge-line{
    display:inline-flex;align-items:center;gap:8px;
    height:32px;padding:0 14px;border-radius:999px;
    border:1px solid rgba(14,159,138,.4);
    background:rgba(14,159,138,.08);
    color:var(--accent);font-size:13px;font-weight:600;letter-spacing:.01em;
  }
  .chip{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;
    border-radius:999px;background:rgba(14,159,138,.1);
    color:var(--accent);font-size:12px;font-weight:600;
  }

  /* 面包屑 */
  .breadcrumb{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    font-size:13.5px;color:var(--ink-2);margin-bottom:20px;
  }
  .breadcrumb a{color:var(--ink-2)}
  .breadcrumb a:hover{color:var(--brand)}
  .breadcrumb .sep{color:#BEB8AF}
  .breadcrumb .now{color:var(--ink);font-weight:600}

  /* 页头 */
  .page-hero{
    padding:40px 0 56px;
    background:linear-gradient(180deg,#FFFFFF 0%,var(--paper) 100%);
    border-bottom:1px solid var(--line);
  }
  .hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center}
  .hero-title{font-size:44px;margin:16px 0 14px}
  .hero-sub{font-size:19px;color:var(--ink);font-weight:600;line-height:1.6}
  .hero-desc{margin-top:14px;font-size:16px;color:var(--ink-2);max-width:620px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
  .hero-points{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:26px}
  .hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2)}
  .hero-points i{color:var(--accent);font-size:12px}
  .hero-media{
    position:relative;border-radius:var(--radius-lg);overflow:hidden;
    aspect-ratio:16/10;
    background:linear-gradient(135deg,var(--paper) 0%,#F3EFE9 100%);
    box-shadow:var(--shadow-sm);
  }
  .hero-media img{width:100%;height:100%;object-fit:cover}
  .hero-media::after{content:"";position:absolute;inset:0;background:rgba(240,89,43,.06);pointer-events:none}
  .hero-media-tag{
    position:absolute;left:16px;bottom:16px;z-index:2;
    display:inline-flex;align-items:center;gap:8px;
    padding:8px 14px;border-radius:999px;
    background:rgba(255,255,255,.92);color:var(--ink);
    font-size:13px;font-weight:600;
  }
  .hero-media-tag i{color:var(--brand)}
  @media (max-width:1023px){
    .hero-grid{grid-template-columns:1fr;gap:28px}
    .hero-title{font-size:32px}
    .hero-media{aspect-ratio:16/9}
  }
  @media (max-width:639px){
    .page-hero{padding:28px 0 40px}
    .hero-title{font-size:28px}
    .hero-sub{font-size:17px}
    .hero-actions .btn{flex:1 1 100%}
  }

  /* 自查三步 */
  .steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
  .step-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:26px 24px;box-shadow:var(--shadow-sm);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#D8D2C9}
  .step-num{
    display:inline-flex;align-items:center;justify-content:center;
    width:38px;height:38px;border-radius:10px;
    background:var(--sun);color:var(--ink);
    font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;
    margin-bottom:16px;
  }
  .step-card h3{font-size:19px;margin-bottom:10px}
  .step-card p{font-size:15px;color:var(--ink-2)}
  @media (max-width:1023px){ .steps{grid-template-columns:repeat(2,minmax(0,1fr))} }
  @media (max-width:639px){ .steps{grid-template-columns:1fr} }

  /* FAQ */
  .faq-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:36px 32px;align-items:start}
  .faq-group-head{margin-bottom:18px}
  .faq-group-head h2{
    padding-left:16px;border-left:4px solid var(--brand);
    font-size:26px;
  }
  .faq-group-head p{margin-top:10px;margin-left:20px;font-size:14.5px;color:var(--ink-2)}
  .faq-panel{
    background:var(--card);border:1px solid var(--line);
    border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);
  }
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item:last-child{border-bottom:0}
  .faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 22px;font-size:16.5px;font-weight:600;color:var(--ink);
    cursor:pointer;transition:background-color .18s var(--ease),color .18s var(--ease);
  }
  .faq-item summary:hover{background:#FDFBF9;color:var(--brand)}
  .faq-icon{
    flex:none;width:26px;height:26px;border-radius:8px;
    display:inline-flex;align-items:center;justify-content:center;
    background:rgba(14,159,138,.12);color:var(--accent);font-size:13px;
    transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease);
  }
  .faq-item[open] summary{color:var(--brand)}
  .faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--brand);color:#fff}
  .faq-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-2)}
  .faq-body strong{color:var(--ink)}
  @media (max-width:900px){ .faq-columns{grid-template-columns:1fr;gap:32px} }
  @media (max-width:639px){
    .faq-group-head h2{font-size:21px}
    .faq-item summary{font-size:15.5px;padding:18px 16px}
    .faq-body{padding:0 16px 18px}
  }

  /* 卡片墙 */
  .card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
  .card{
    display:flex;flex-direction:column;overflow:hidden;
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-sm);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease);
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
  .card-media{flex:none;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,var(--line) 0%,var(--paper) 100%)}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
  .card:hover .card-media img{transform:scale(1.03)}
  .card-body{display:flex;flex-direction:column;gap:10px;padding:20px;flex:1}
  .card-title{font-size:18px;line-height:1.45}
  .card-text{font-size:15px;color:var(--ink-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
  .card-foot{
    margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    font-size:13px;color:var(--ink-2);
  }
  .card-foot a{font-weight:600;display:inline-flex;align-items:center;gap:6px;min-height:32px}
  .card-foot i{font-size:11px;transition:transform .2s var(--ease)}
  .card-foot a:hover i{transform:translateX(3px)}
  @media (max-width:1023px){ .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))} }
  @media (max-width:639px){ .card-grid{grid-template-columns:1fr} }

  /* 联系 / CTA 带 */
  .cta-band{background:var(--brand);color:#fff}
  .cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
  .cta-copy h2{font-size:32px;color:#fff}
  .cta-copy p{margin-top:14px;font-size:16px;color:rgba(255,255,255,.9);max-width:460px}
  .cta-list{margin-top:24px;display:grid;gap:10px}
  .cta-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:rgba(255,255,255,.94)}
  .cta-list i{color:var(--sun);margin-top:5px;font-size:13px}
  .cta-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}
  .ask-form{
    background:#fff;border-radius:var(--radius-lg);padding:28px;
    box-shadow:0 18px 40px rgba(20,22,26,.16);
    display:grid;gap:16px;
  }
  .ask-form .form-title{font-size:19px;font-weight:700;color:var(--ink)}
  .field{display:grid;gap:8px}
  .field label{font-size:14px;font-weight:600;color:var(--ink)}
  .field input,.field textarea{
    width:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-btn);
    padding:12px 14px;font-size:15px;color:var(--ink);min-height:48px;
    transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
  }
  .field textarea{min-height:110px;resize:vertical;line-height:1.7}
  .field input::placeholder,.field textarea::placeholder{color:#A9A3A0}
  .field input:hover,.field textarea:hover{border-color:#D3CCC2}
  .field input:focus,.field textarea:focus{
    outline:none;border-color:var(--accent);
    box-shadow:0 0 0 3px rgba(14,159,138,.18);
  }
  .form-note{font-size:14px;color:var(--accent);font-weight:600}
  .form-tip{font-size:13px;color:var(--ink-2)}
  @media (max-width:1023px){
    .cta-grid{grid-template-columns:1fr;gap:28px}
    .cta-copy h2{font-size:26px}
  }
  @media (max-width:639px){
    .ask-form{padding:20px}
    .cta-actions .btn{flex:1 1 100%}
  }

  /* 页脚 */
  .site-footer{background:var(--ink);color:#EDEAE4;padding:64px 0 24px}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px}
  .footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px}
  .site-footer p{font-size:14.5px;color:#B9B4AC;line-height:1.8;max-width:300px}
  .footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em}
  .footer-links{display:grid;gap:10px}
  .footer-links a{display:inline-flex;align-items:center;min-height:32px;color:#C9C5BE;font-size:14.5px}
  .footer-links a:hover{color:var(--sun)}
  .footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:#C9C5BE;min-height:32px}
  .footer-contact i{color:var(--accent);margin-top:5px;font-size:13px}
  .footer-bottom{
    margin-top:44px;padding-top:20px;border-top:1px solid rgba(237,234,228,.14);
    display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
    font-size:13px;color:#9A958E;
  }
  @media (max-width:1023px){
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  }
  @media (max-width:639px){
    .site-footer{padding:48px 0 20px}
    .footer-grid{grid-template-columns:1fr;gap:26px}
    .site-footer p{max-width:none}
  }

  /* 移动底部 Tab */
  .mobile-tab{
    position:fixed;left:0;right:0;bottom:0;z-index:60;
    display:none;
    background:#fff;border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
    box-shadow:0 -4px 18px rgba(20,22,26,.06);
  }
  .mobile-tab ul{display:grid;grid-template-columns:repeat(5,1fr)}
  .mobile-tab a{
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    min-height:56px;padding:6px 2px;color:var(--ink-2);font-size:10px;font-weight:500;
  }
  .mobile-tab a i{font-size:17px}
  .mobile-tab a.active{color:var(--brand);font-weight:700}
  .mobile-tab a:hover{color:var(--brand)}
  @media (max-width:767px){
    .mobile-tab{display:block}
    body{padding-bottom:76px}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
    .card:hover,.step-card:hover,.btn:hover{transform:none !important}
  }