/* roulang page: index */
:root{
  --od-ink:#2E2320;
  --od-brand-900:#3A2A23;
  --od-brand-700:#5A4034;
  --od-brand-500:#8A6650;
  --od-accent:#C0603A;
  --od-accent-600:#A44E2C;
  --od-mist:#7C8B84;
  --od-sand:#F3EBE1;
  --od-surface:#FFFFFF;
  --od-surface-2:#FBF7F2;
  --od-line:#E4D9CC;
  --od-champagne:#C9A87C;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:26px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(46,35,32,.06);
  --sh-2:0 10px 30px -12px rgba(46,35,32,.18);
  --sh-3:0 24px 60px -20px rgba(46,35,32,.28);
  --ff-serif:"Noto Serif SC","Source Han Serif SC",serif;
  --ff-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --bs-primary:#C0603A;
  --bs-body-color:#2E2320;
  --bs-body-bg:#F3EBE1;
  --bs-border-color:#E4D9CC;
  --bs-border-radius:16px;
  --bs-link-color:#8A6650;
  --bs-link-hover-color:#C0603A;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--ff-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--od-ink);
  background:var(--od-sand);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--od-brand-500);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--od-accent);}
h1,h2,h3,h4{font-family:var(--ff-serif);color:var(--od-ink);letter-spacing:0;margin:0;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--od-accent);outline-offset:2px;border-radius:6px;}
.container-od{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media(min-width:1400px){.container-od{max-width:1280px;}}
.section{padding:96px 0;}
.section--alt{background:var(--od-surface-2);border-top:1px solid var(--od-line);border-bottom:1px solid var(--od-line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head h2{font-size:32px;line-height:1.35;font-weight:600;}
.section-head .lead{color:var(--od-mist);font-size:15px;margin-top:10px;max-width:640px;}
.section-link{font-size:14.5px;color:var(--od-accent);font-weight:600;white-space:nowrap;}
.section-link:hover{color:var(--od-accent-600);}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.02em;color:var(--od-brand-500);border:1px solid var(--od-champagne);border-radius:var(--r-pill);padding:4px 14px;margin-bottom:16px;}

/* ---------- topbar ---------- */
.od-topbar{background:var(--od-brand-900);color:#F0E7DC;font-size:12.5px;height:36px;overflow:hidden;transition:height .28s ease,opacity .28s ease;}
.od-topbar-inner{height:36px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.od-topbar-left,.od-topbar-right{display:flex;align-items:center;gap:10px;}
.od-topbar a{color:#F0E7DC;}
.od-topbar a:hover{color:var(--od-champagne);}
.od-topbar .dot{width:3px;height:3px;border-radius:50%;background:rgba(240,231,220,.45);display:inline-block;}
.od-header.is-scrolled .od-topbar{height:0;opacity:0;}

/* ---------- nav ---------- */
.od-header{position:sticky;top:0;z-index:1030;background:var(--od-surface);border-bottom:1px solid var(--od-line);transition:box-shadow .25s ease;}
.od-header.is-scrolled{box-shadow:var(--sh-2);}
.od-nav{padding:12px 0;background:var(--od-surface);}
.od-nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;}
.od-logo{display:flex;flex-direction:column;line-height:1.1;}
.od-logo strong{font-family:var(--ff-serif);font-size:23px;font-weight:700;color:var(--od-ink);letter-spacing:.01em;}
.od-logo strong em{font-style:normal;color:var(--od-accent);}
.od-logo span{font-size:11px;color:var(--od-mist);letter-spacing:.02em;}
.od-menu{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0;}
.od-menu > li{position:relative;}
.od-menu > li > a{display:block;padding:10px 16px;font-size:15.5px;color:var(--od-ink);font-weight:500;border-bottom:2px solid transparent;}
.od-menu > li > a:hover{color:var(--od-accent);}
.od-menu > li > a.active{color:var(--od-brand-900);font-weight:600;border-bottom-color:var(--od-accent);}
.od-nav-actions{display:flex;align-items:center;gap:12px;}
.od-icon-btn{width:40px;height:40px;border-radius:50%;border:1px solid var(--od-line);background:var(--od-surface);color:var(--od-brand-700);display:inline-flex;align-items:center;justify-content:center;transition:all .2s ease;}
.od-icon-btn:hover{border-color:var(--od-brand-500);color:var(--od-accent);background:var(--od-surface-2);}
.od-nav-cta{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,var(--od-accent),var(--od-accent-600));color:#fff;border-radius:var(--r-pill);padding:10px 20px;font-size:14.5px;font-weight:600;border:0;transition:all .2s ease;}
.od-nav-cta:hover{color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.navbar-toggler{border:1px solid var(--od-line);border-radius:var(--r-sm);padding:8px 12px;color:var(--od-brand-700);}
.navbar-toggler:focus{box-shadow:none;outline:2px solid var(--od-accent);outline-offset:2px;}

/* mega */
.od-mega{position:absolute;left:0;top:calc(100% + 10px);width:640px;background:var(--od-surface);border:1px solid var(--od-line);border-radius:var(--r-lg);box-shadow:var(--sh-3);padding:24px;display:grid;grid-template-columns:1fr 1fr;gap:22px;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .16s ease,transform .16s ease,visibility .16s ease;z-index:20;}
.od-mega-col h4{font-size:14px;color:var(--od-brand-500);margin-bottom:12px;font-weight:600;}
.od-mega-list{list-style:none;margin:0;padding:0;}
.od-mega-list li{margin-bottom:9px;}
.od-mega-list a{display:flex;align-items:center;gap:9px;font-size:14.5px;color:var(--od-ink);}
.od-mega-list a::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--od-accent);flex:0 0 6px;}
.od-mega-list a:hover{color:var(--od-accent);}
.od-mega-card{border:1px solid var(--od-line);border-radius:var(--r-md);overflow:hidden;background:var(--od-surface-2);}
.od-mega-card img{width:100%;height:104px;object-fit:cover;}
.od-mega-card-body{padding:12px 14px;}
.od-mega-card-body strong{display:block;font-size:14.5px;font-family:var(--ff-serif);}
.od-mega-card-body span{font-size:12.5px;color:var(--od-mist);}
.od-mega-foot{grid-column:1 / -1;border-top:1px solid var(--od-line);padding-top:14px;display:flex;gap:22px;flex-wrap:wrap;}
.od-mega-foot a{font-size:13.5px;color:var(--od-brand-700);}
.od-mega-foot em{font-style:normal;color:var(--od-mist);font-size:12.5px;font-variant-numeric:tabular-nums;margin-left:6px;}
@media(min-width:992px){
  .od-nav .dropdown:hover > .od-mega,
  .od-nav .dropdown:focus-within > .od-mega{opacity:1;visibility:visible;transform:translateY(0);}
}
@media(max-width:991.98px){
  .od-menu{flex-direction:column;align-items:stretch;gap:0;padding-top:12px;}
  .od-menu > li > a{border-bottom:1px solid var(--od-line);border-left:0;padding:13px 4px;}
  .od-menu > li > a.active{border-bottom-color:var(--od-line);border-left:3px solid var(--od-accent);padding-left:12px;}
  .od-mega{position:static;width:auto;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;border-radius:0;padding:12px 0 12px 10px;grid-template-columns:1fr;}
  .od-mega-card{display:none;}
  .od-nav-actions{margin-top:16px;}
}

/* ---------- buttons ---------- */
.btn-od{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:linear-gradient(135deg,var(--od-accent),var(--od-accent-600));color:#fff;border:0;border-radius:var(--r-pill);padding:13px 28px;font-size:15.5px;font-weight:600;transition:all .2s ease;cursor:pointer;}
.btn-od:hover{color:#fff;background:var(--od-accent-600);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-od:active{transform:translateY(1px);}
.btn-od-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:transparent;color:var(--od-brand-700);border:1px solid var(--od-brand-500);border-radius:var(--r-pill);padding:12px 26px;font-size:15.5px;font-weight:600;transition:all .2s ease;cursor:pointer;}
.btn-od-ghost:hover{color:var(--od-brand-900);border-color:var(--od-brand-900);background:rgba(138,102,80,.08);}
.btn-od-ghost:active{transform:translateY(1px);}
.btn-od[disabled],.btn-od-ghost[disabled]{opacity:.45;box-shadow:none;transform:none;cursor:not-allowed;}

/* ---------- badges ---------- */
.od-badges{display:flex;flex-wrap:wrap;gap:14px;}
.od-badge{background:var(--od-surface);border:1px solid rgba(124,139,132,.35);border-radius:var(--r-pill);padding:6px 14px;display:flex;align-items:baseline;gap:6px;}
.od-badge b{font-size:18px;font-family:var(--ff-sans);font-weight:700;color:var(--od-brand-900);font-variant-numeric:tabular-nums;}
.od-badge span{font-size:12px;color:var(--od-mist);}
.od-badge--mist{background:rgba(124,139,132,.08);}

/* ---------- hero ---------- */
.od-hero{background:linear-gradient(135deg,#F6EFE6 0%,#EADFD1 100%);padding:80px 0 88px;position:relative;overflow:hidden;}
.od-hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.od-hero h1{font-size:44px;line-height:1.35;font-weight:700;margin-bottom:18px;}
.od-hero .sub{font-size:17px;color:var(--od-brand-700);margin-bottom:26px;max-width:520px;}
.od-hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:32px;}
.od-hero-media{position:relative;}
.od-hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-3);}
.od-hero-float{position:absolute;right:-8px;bottom:-26px;background:rgba(124,139,132,.08);backdrop-filter:blur(2px);border:1px solid rgba(124,139,132,.3);border-radius:var(--r-md);padding:14px 18px;box-shadow:var(--sh-2);}
.od-hero-float b{display:block;font-size:20px;font-variant-numeric:tabular-nums;color:var(--od-brand-900);}
.od-hero-float span{font-size:12.5px;color:var(--od-mist);}

/* ---------- trust strip ---------- */
.od-trust{background:var(--od-surface);border-bottom:1px solid var(--od-line);padding:26px 0;}
.od-trust-inner{display:flex;align-items:center;gap:20px;flex-wrap:wrap;justify-content:space-between;}
.od-trust-label{font-size:13.5px;color:var(--od-mist);}
.od-trust-tags{display:flex;gap:10px;flex-wrap:wrap;}
.od-tag{font-size:13.5px;color:var(--od-brand-700);background:var(--od-surface-2);border:1px solid var(--od-line);border-radius:var(--r-pill);padding:6px 15px;}

/* ---------- feature cards ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.od-card{background:var(--od-surface);border:1px solid var(--od-line);border-radius:var(--r-lg);padding:30px 26px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;display:flex;flex-direction:column;}
.od-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(90,64,52,.2);}
.od-pill{align-self:flex-start;font-size:12.5px;color:var(--od-brand-700);background:rgba(201,168,124,.16);border:1px solid rgba(201,168,124,.5);border-radius:var(--r-pill);padding:3px 12px;margin-bottom:16px;}
.od-card h3{font-size:22px;line-height:1.35;margin-bottom:12px;}
.od-card p{font-size:15px;color:var(--od-brand-700);line-height:1.8;}
.od-points{list-style:none;margin:16px 0 22px;padding:0;}
.od-points li{position:relative;padding-left:16px;font-size:14.5px;color:var(--od-mist);margin-bottom:8px;}
.od-points li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;background:var(--od-accent);border-radius:1px;}
.od-card-link{margin-top:auto;font-size:14.5px;font-weight:600;color:var(--od-accent);}
.od-card-link i{font-size:12px;margin-left:4px;transition:transform .2s ease;display:inline-block;}
.od-card:hover .od-card-link i{transform:translateX(4px);}

/* ---------- scenes ---------- */
.scene-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:46px 0;border-bottom:1px dashed var(--od-line);}
.scene-row:last-child{border-bottom:0;padding-bottom:0;}
.scene-row:first-child{padding-top:0;}
.scene-row.reverse .scene-text{order:2;}
.scene-row.reverse .scene-media{order:1;}
.scene-media img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-2);}
.scene-text h3{font-size:26px;line-height:1.35;margin-bottom:14px;}
.scene-text p{color:var(--od-brand-700);font-size:15.5px;}
.scene-meta{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px;}
.scene-meta span{font-size:13px;border:1px solid var(--od-line);background:var(--od-surface);border-radius:var(--r-pill);padding:5px 14px;color:var(--od-mist);}

/* ---------- cases ---------- */
.case-card{background:var(--od-surface);border:1px solid var(--od-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.case-media{position:relative;overflow:hidden;}
.case-media img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .3s ease;}
.case-card:hover .case-media img{transform:scale(1.03);}
.case-cat{position:absolute;left:14px;bottom:14px;background:rgba(58,42,35,.86);color:#F0E7DC;font-size:12.5px;border-radius:var(--r-pill);padding:4px 12px;}
.case-body{padding:22px 24px 26px;}
.case-body h3{font-size:20px;line-height:1.4;margin-bottom:10px;}
.case-body p{font-size:14.5px;color:var(--od-mist);margin-bottom:16px;}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{background:var(--od-surface);border:1px solid var(--od-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease;}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.news-card img{width:100%;aspect-ratio:3/2;object-fit:cover;}
.news-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1;}
.news-cat{align-self:flex-start;font-size:12px;color:var(--od-brand-700);background:var(--od-surface-2);border:1px solid var(--od-line);border-radius:var(--r-pill);padding:3px 12px;margin-bottom:12px;}
.news-body h3{font-size:18.5px;line-height:1.45;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body p{font-size:14.5px;color:var(--od-mist);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px;}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--od-line);padding-top:12px;}
.news-date{font-size:13px;color:var(--od-mist);font-variant-numeric:tabular-nums;}
.news-foot a{font-size:14px;font-weight:600;color:var(--od-accent);}
.news-empty{border:1px dashed rgba(124,139,132,.6);border-radius:var(--r-md);padding:52px 24px;text-align:center;background:var(--od-surface);}
.news-empty p{color:var(--od-mist);font-size:15px;margin-bottom:18px;}

/* ---------- price ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.price-card{background:var(--od-surface);border:1px solid var(--od-line);border-radius:var(--r-lg);padding:32px 28px;box-shadow:var(--sh-1);display:flex;flex-direction:column;position:relative;transition:transform .25s ease,box-shadow .25s ease;}
.price-card:hover{box-shadow:var(--sh-2);}
.price-card.recommend{border:2px solid var(--od-accent);transform:translateY(-12px);box-shadow:var(--sh-3);}
.price-flag{position:absolute;top:-14px;left:28px;background:var(--od-accent);color:#fff;font-size:12.5px;border-radius:var(--r-pill);padding:4px 14px;}
.price-card h3{font-size:21px;margin-bottom:8px;}
.price-card .desc{font-size:14px;color:var(--od-mist);margin-bottom:20px;}
.price-num{font-family:var(--ff-sans);font-weight:700;font-size:40px;color:var(--od-brand-900);font-variant-numeric:tabular-nums;line-height:1;}
.price-num small{font-size:14px;font-weight:500;color:var(--od-mist);margin-left:6px;}
.price-line{height:1px;background:var(--od-line);margin:22px 0;}
.price-list{list-style:none;margin:0 0 26px;padding:0;}
.price-list li{display:flex;gap:9px;font-size:14.5px;color:var(--od-brand-700);margin-bottom:11px;}
.price-list i{color:var(--od-accent);font-size:13px;margin-top:6px;}
.price-card .btn-od,.price-card .btn-od-ghost{margin-top:auto;width:100%;}

/* ---------- faq ---------- */
.od-faq .accordion-item{background:var(--od-surface);border:0;border-radius:var(--r-md);margin-bottom:12px;box-shadow:var(--sh-1);overflow:hidden;}
.od-faq .accordion-button{background:var(--od-surface);font-size:17px;font-weight:600;color:var(--od-ink);padding:20px 24px;font-family:var(--ff-serif);box-shadow:none;}
.od-faq .accordion-button:not(.collapsed){color:var(--od-brand-900);background:var(--od-surface-2);}
.od-faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--od-accent);outline-offset:-4px;}
.od-faq .accordion-button::after{content:"+";font-size:22px;line-height:1;background-image:none;transform:none;font-weight:400;color:var(--od-accent);transition:transform .25s ease;display:flex;align-items:center;justify-content:center;}
.od-faq .accordion-button:not(.collapsed)::after{content:"+";transform:rotate(45deg);}
.od-faq .accordion-body{font-size:15px;line-height:1.8;color:var(--od-brand-700);padding:4px 24px 24px;border-left:3px solid var(--od-accent);}

/* ---------- cta ---------- */
.od-cta{background:linear-gradient(135deg,var(--od-brand-900),var(--od-brand-700));color:#F3EBE1;padding:72px 0;}
.od-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap;}
.od-cta h2{color:#FBF7F2;font-size:30px;line-height:1.35;margin-bottom:12px;}
.od-cta p{color:rgba(243,235,225,.78);font-size:15px;max-width:620px;}
.od-cta-side{display:flex;flex-direction:column;gap:12px;align-items:flex-start;}
.od-cta-tel{font-size:14px;color:rgba(243,235,225,.78);}
.od-cta-tel b{color:#FBF7F2;font-variant-numeric:tabular-nums;font-size:16px;}

/* ---------- footer ---------- */
.od-footer{background:var(--od-brand-900);color:rgba(243,235,225,.82);padding:64px 0 0;font-size:14.5px;}
.od-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:34px;padding-bottom:44px;}
.od-footer h4{font-size:15.5px;color:#FBF7F2;margin-bottom:16px;font-weight:600;}
.od-footer-brand .od-logo strong{color:#FBF7F2;}
.od-footer-brand .od-logo span{color:rgba(243,235,225,.6);}
.od-footer-brand p{margin:16px 0;font-size:14px;color:rgba(243,235,225,.7);max-width:320px;}
.od-social{display:flex;gap:10px;}
.od-social a{width:36px;height:36px;border-radius:50%;border:1px solid rgba(243,235,225,.22);display:inline-flex;align-items:center;justify-content:center;color:rgba(243,235,225,.8);}
.od-social a:hover{border-color:var(--od-champagne);color:var(--od-champagne);}
.od-footer ul{list-style:none;margin:0;padding:0;}
.od-footer ul li{margin-bottom:10px;}
.od-footer ul a{color:rgba(243,235,225,.75);font-size:14.5px;}
.od-footer ul a:hover{color:var(--od-champagne);}
.od-subscribe{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap;}
.od-subscribe input{flex:1 1 160px;min-width:0;height:46px;border-radius:var(--r-pill);border:1px solid rgba(243,235,225,.24);background:rgba(255,255,255,.06);color:#FBF7F2;padding:0 18px;font-size:14px;}
.od-subscribe input::placeholder{color:rgba(243,235,225,.5);}
.od-subscribe input:focus{outline:none;border-color:var(--od-champagne);box-shadow:0 0 0 4px rgba(201,168,124,.14);}
.od-subscribe button{height:46px;border-radius:var(--r-pill);border:0;background:var(--od-accent);color:#fff;padding:0 20px;font-size:14.5px;font-weight:600;transition:all .2s ease;}
.od-subscribe button:hover{background:var(--od-accent-600);}
.od-privacy{font-size:12.5px;color:rgba(243,235,225,.5);margin-top:10px;}
.od-footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0 22px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:rgba(243,235,225,.6);}

/* ---------- responsive ---------- */
@media(max-width:1199.98px){
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .od-footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
}
@media(max-width:991.98px){
  .section{padding:72px 0;}
  .od-hero{padding:56px 0 68px;}
  .od-hero-grid{grid-template-columns:1fr;gap:38px;}
  .od-hero h1{font-size:34px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .price-grid{grid-template-columns:1fr;}
  .price-card.recommend{transform:none;}
  .scene-row{grid-template-columns:1fr;gap:26px;padding:34px 0;}
  .scene-row.reverse .scene-text,.scene-row.reverse .scene-media{order:0;}
  .section-head h2{font-size:28px;}
}
@media(max-width:767.98px){
  .section{padding:56px 0;}
  .grid-4,.grid-3,.grid-2,.news-grid{grid-template-columns:1fr;}
  .od-hero h1{font-size:30px;}
  .od-hero .sub{font-size:16px;}
  .od-hero-actions .btn-od,.od-hero-actions .btn-od-ghost{width:100%;}
  .od-hero-media img{aspect-ratio:4/3;}
  .od-hero-float{right:8px;bottom:-18px;padding:10px 14px;}
  .section-head h2{font-size:24px;}
  .scene-text h3{font-size:22px;}
  .od-cta h2{font-size:24px;}
  .od-cta-side,.od-cta-side .btn-od{width:100%;}
  .od-footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:30px;}
  .od-footer-bottom{flex-direction:column;gap:6px;}
  .od-topbar-left span:nth-child(2),.od-topbar-left span:nth-child(3){display:none;}
}
@media(max-width:575.98px){
  .container-od{padding:0 16px;}
  .od-hero h1{font-size:26px;}
  .od-card{padding:24px 20px;}
  .od-badge b{font-size:16px;}
}

/* roulang page: category1 */
:root{
  --od-ink:#2E2320;
  --od-brand-900:#3A2A23;
  --od-brand-700:#5A4034;
  --od-brand-500:#8A6650;
  --od-accent:#C0603A;
  --od-accent-600:#A44E2C;
  --od-mist:#7C8B84;
  --od-sand:#F3EBE1;
  --od-surface:#FFFFFF;
  --od-surface-2:#FBF7F2;
  --od-line:#E4D9CC;
  --od-champagne:#C9A87C;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:26px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(46,35,32,.06);
  --sh-2:0 10px 30px -12px rgba(46,35,32,.18);
  --sh-3:0 24px 60px -20px rgba(46,35,32,.28);
  --bs-primary:#C0603A;
  --bs-body-color:#2E2320;
  --bs-body-bg:#F3EBE1;
  --bs-border-color:#E4D9CC;
  --bs-link-color:#5A4034;
  --bs-link-hover-color:#C0603A;
  --bs-border-radius:12px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--od-ink);
  background:var(--od-sand);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  line-height:1.35;
  color:var(--od-ink);
  margin:0;
  letter-spacing:0;
}
p{margin:0 0 1em;}
a{color:var(--od-brand-700);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--od-accent);}
img{max-width:100%;display:block;}
ul{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--od-accent);outline-offset:2px;}
.container-od{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.container-od{max-width:1280px;}}

/* ============ 顶部信息条 ============ */
.od-header{position:sticky;top:0;z-index:1030;}
.od-topbar{
  background:var(--od-brand-900);
  color:#F3EBE1;
  font-size:12.5px;
  height:36px;
  overflow:hidden;
  transition:height .25s ease,opacity .25s ease;
}
.od-topbar-inner{display:flex;align-items:center;justify-content:space-between;height:36px;}
.od-topbar-left,.od-topbar-right{display:flex;align-items:center;gap:10px;white-space:nowrap;}
.od-topbar a{color:#F3EBE1;}
.od-topbar a:hover{color:var(--od-champagne);}
.od-topbar .dot{width:3px;height:3px;border-radius:50%;background:rgba(243,235,225,.5);display:inline-block;}
.od-header.is-scrolled .od-topbar{height:0;opacity:0;}
@media (max-width:767px){
  .od-topbar-left span:nth-child(n+3){display:none;}
}

/* ============ 主导航 ============ */
.od-nav{background:#fff;border-bottom:1px solid var(--od-line);padding:0;transition:box-shadow .25s ease;}
.od-header.is-scrolled .od-nav{box-shadow:var(--sh-2);}
.od-nav-inner{display:flex;align-items:center;justify-content:space-between;min-height:74px;gap:16px;}
.od-logo{display:flex;flex-direction:column;line-height:1.2;text-decoration:none;}
.od-logo strong{
  font-family:"Noto Serif SC","Source Han Serif SC",serif;
  font-size:23px;
  font-weight:700;
  color:var(--od-brand-900);
  letter-spacing:.02em;
}
.od-logo strong em{font-style:normal;color:var(--od-accent);margin-left:2px;}
.od-logo span{font-size:11px;color:var(--od-mist);font-weight:400;letter-spacing:.01em;}
.od-menu{display:flex;align-items:center;gap:6px;}
.od-menu>li{position:relative;}
.od-menu>li>a{
  display:block;
  padding:26px 14px;
  font-size:15.5px;
  color:var(--od-ink);
  position:relative;
  white-space:nowrap;
}
.od-menu>li>a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:18px;height:2px;
  background:var(--od-accent);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.od-menu>li>a:hover{color:var(--od-brand-900);}
.od-menu>li>a:hover::after{transform:scaleX(1);}
.od-menu>li>a.active{color:var(--od-brand-900);font-weight:600;}
.od-menu>li>a.active::after{transform:scaleX(1);}
.od-nav-actions{display:flex;align-items:center;gap:10px;}
.od-icon-btn{
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--od-line);background:#fff;color:var(--od-brand-700);
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .2s,border-color .2s,color .2s;
}
.od-icon-btn:hover{background:rgba(192,96,58,.08);border-color:var(--od-brand-500);color:var(--od-accent);}
.od-nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  background:linear-gradient(135deg,var(--od-accent),var(--od-accent-600));
  color:#fff;border-radius:var(--r-pill);
  padding:10px 20px;font-size:14.5px;border:none;
  box-shadow:var(--sh-1);transition:transform .2s,box-shadow .2s,background .2s;
}
.od-nav-cta:hover{color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.navbar-toggler{border:1px solid var(--od-line);border-radius:var(--r-sm);padding:8px 12px;color:var(--od-brand-700);}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(192,96,58,.18);}
.od-mega{
  position:absolute;top:100%;right:0;width:660px;
  background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-3);
  padding:24px;display:grid;grid-template-columns:1.1fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
  z-index:20;
}
.od-menu>li:hover .od-mega,
.od-menu>li:focus-within .od-mega{opacity:1;visibility:visible;transform:translateY(0);}
.od-mega h4{font-size:14px;color:var(--od-brand-700);margin-bottom:12px;font-family:inherit;font-weight:600;}
.od-mega-list li{margin-bottom:9px;}
.od-mega-list a{
  font-size:14.5px;color:var(--od-ink);display:inline-flex;align-items:center;gap:8px;
}
.od-mega-list a::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--od-accent);flex:0 0 6px;}
.od-mega-list a:hover{color:var(--od-accent);}
.od-mega-card{
  border:1px solid var(--od-line);border-radius:var(--r-md);overflow:hidden;
  display:block;background:var(--od-surface-2);
}
.od-mega-card img{width:100%;height:118px;object-fit:cover;}
.od-mega-card-body{padding:12px 14px;}
.od-mega-card-body strong{display:block;font-size:14.5px;color:var(--od-ink);font-weight:600;}
.od-mega-card-body small{color:var(--od-mist);font-size:12.5px;}
.od-mega-news{grid-column:1/-1;border-top:1px solid var(--od-line);padding-top:14px;display:flex;gap:24px;flex-wrap:wrap;}
.od-mega-news a{font-size:13.5px;color:var(--od-brand-700);display:inline-flex;gap:8px;align-items:center;}
.od-mega-news .date{color:var(--od-mist);font-variant-numeric:tabular-nums;font-size:12.5px;}
@media (max-width:991px){
  .od-nav-inner{min-height:64px;flex-wrap:wrap;}
  .od-menu{flex-direction:column;align-items:stretch;width:100%;padding:10px 0 18px;}
  .od-menu>li>a{padding:12px 4px;border-bottom:1px solid var(--od-line);}
  .od-menu>li>a::after{display:none;}
  .od-menu>li>a.active{color:var(--od-accent);}
  .od-mega{position:static;width:100%;opacity:1;visibility:visible;transform:none;box-shadow:none;border:1px solid var(--od-line);grid-template-columns:1fr;margin-top:8px;}
  .od-nav-actions{display:none;}
}

/* ============ 栏目头 ============ */
.od-page-head{position:relative;background:var(--od-sand);border-bottom:1px solid var(--od-line);padding:30px 0 46px;overflow:hidden;}
.od-page-head::after{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;
  opacity:.14;pointer-events:none;
}
.od-page-head .container-od{position:relative;z-index:2;}
.od-crumb{font-size:13.5px;color:var(--od-mist);margin-bottom:16px;display:flex;gap:8px;flex-wrap:wrap;align-items:center;}
.od-crumb a{color:var(--od-brand-700);}
.od-crumb .sep{color:var(--od-mist);}
.od-page-head h1{font-size:44px;margin-bottom:14px;max-width:16em;}
.od-page-head .lead{font-size:16.5px;color:var(--od-brand-700);max-width:62ch;}
.od-anchor-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px;}
.od-anchor{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--od-line);border-radius:var(--r-pill);
  padding:8px 16px;font-size:14px;color:var(--od-brand-700);
  transition:border-color .2s,color .2s,box-shadow .2s,transform .2s;
}
.od-anchor:hover{border-color:var(--od-brand-500);color:var(--od-accent);box-shadow:var(--sh-1);transform:translateY(-1px);}
.od-anchor i{font-size:12px;color:var(--od-champagne);}
@media (max-width:991px){.od-page-head h1{font-size:36px;}}
@media (max-width:575px){
  .od-page-head{padding:24px 0 34px;}
  .od-page-head h1{font-size:30px;}
  .od-page-head .lead{font-size:15.5px;}
}

/* ============ 通用板块 ============ */
.od-section{padding:96px 0;}
.od-section.is-alt{background:var(--od-surface-2);border-top:1px solid var(--od-line);border-bottom:1px solid var(--od-line);}
.od-section-head{margin-bottom:40px;max-width:70ch;}
.od-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--od-brand-500);letter-spacing:.02em;margin-bottom:12px;
}
.od-eyebrow::before{content:"";width:22px;height:1px;background:var(--od-champagne);}
.od-section-head h2{font-size:32px;margin-bottom:12px;}
.od-section-head p{color:var(--od-mist);font-size:15.5px;margin:0;}
@media (max-width:991px){
  .od-section{padding:72px 0;}
  .od-section-head h2{font-size:28px;}
}
@media (max-width:575px){
  .od-section{padding:56px 0;}
  .od-section-head h2{font-size:24px;}
}

/* ============ 产品网格 ============ */
.od-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.od-card{
  background:#fff;border:1px solid var(--od-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;height:100%;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.od-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(192,96,58,.28);}
.od-card-media{aspect-ratio:4/3;overflow:hidden;background:var(--od-sand);position:relative;}
.od-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.od-card:hover .od-card-media img{transform:scale(1.03);}
.od-card-media .od-flag{
  position:absolute;left:14px;top:14px;
  background:rgba(255,255,255,.94);color:var(--od-brand-700);
  border:1px solid var(--od-line);border-radius:var(--r-pill);
  font-size:12.5px;padding:4px 12px;
}
.od-card-body{padding:22px;display:flex;flex-direction:column;flex:1;}
.od-pill{
  display:inline-block;font-size:12.5px;color:var(--od-brand-700);
  background:rgba(124,139,132,.10);border:1px solid var(--od-line);
  border-radius:var(--r-pill);padding:4px 12px;margin-bottom:12px;align-self:flex-start;
}
.od-card-body h3{font-size:22px;margin-bottom:10px;}
.od-card-body p{font-size:15px;color:var(--od-brand-700);margin-bottom:16px;}
.od-points{margin-bottom:18px;}
.od-points li{
  position:relative;padding-left:16px;font-size:14.5px;color:var(--od-ink);
  margin-bottom:8px;line-height:1.7;
}
.od-points li::before{
  content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:2px;background:var(--od-accent);
}
.od-badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.od-badge{
  display:inline-flex;align-items:baseline;gap:4px;
  background:rgba(124,139,132,.08);border:1px solid rgba(124,139,132,.35);
  border-radius:var(--r-pill);padding:6px 12px;
}
.od-badge b{font-size:16px;font-weight:700;font-family:inherit;color:var(--od-brand-900);font-variant-numeric:tabular-nums;}
.od-badge span{font-size:12px;color:var(--od-mist);}
.od-card-more{
  margin-top:auto;font-size:14.5px;color:var(--od-accent);font-weight:600;
  display:inline-flex;align-items:center;gap:6px;
}
.od-card-more i{transition:transform .2s ease;}
.od-card:hover .od-card-more i{transform:translateX(4px);}
@media (max-width:991px){.od-grid-3{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.od-grid-3{grid-template-columns:1fr;}}

/* ============ 对比区 ============ */
.od-compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.od-compare-card{
  background:#fff;border:1px solid var(--od-line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.od-compare-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.od-compare-card.is-featured{border:2px solid var(--od-accent);}
.od-compare-card h3{font-size:22px;margin-bottom:8px;}
.od-compare-card .sub{color:var(--od-mist);font-size:14.5px;margin-bottom:20px;}
.od-compare-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--od-ink);padding:11px 0;border-bottom:1px dashed var(--od-line);
}
.od-compare-list li:last-child{border-bottom:none;}
.od-compare-list i{color:var(--od-accent);font-size:13px;margin-top:.45em;}
.od-compare-list .k{color:var(--od-mist);min-width:78px;font-size:13.5px;}
.od-compare-card .od-btn{margin-top:22px;align-self:flex-start;}
@media (max-width:767px){.od-compare{grid-template-columns:1fr;}}

/* ============ 步骤 ============ */
.od-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.od-step{
  background:#fff;border:1px solid var(--od-line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);position:relative;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.od-step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(192,96,58,.28);}
.od-step-num{
  font-size:34px;font-weight:700;color:var(--od-champagne);
  font-variant-numeric:tabular-nums;line-height:1;margin-bottom:16px;
  font-family:"Noto Serif SC",serif;
}
.od-step h3{font-size:20px;margin-bottom:10px;}
.od-step p{font-size:15px;color:var(--od-brand-700);margin:0;}
.od-step .od-step-meta{margin-top:16px;font-size:13.5px;color:var(--od-mist);display:flex;align-items:center;gap:8px;}
@media (max-width:991px){.od-steps{grid-template-columns:1fr;}}

/* ============ 按钮 ============ */
.od-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);padding:13px 26px;font-size:15px;
  border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.od-btn-primary{
  background:linear-gradient(135deg,var(--od-accent),var(--od-accent-600));
  color:#fff;box-shadow:var(--sh-1);
}
.od-btn-primary:hover{color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.od-btn-primary:active{transform:translateY(0);}
.od-btn-ghost{background:#fff;border-color:var(--od-brand-500);color:var(--od-brand-700);}
.od-btn-ghost:hover{background:rgba(192,96,58,.08);border-color:var(--od-accent);color:var(--od-accent);}
.od-btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed;}

/* ============ FAQ ============ */
.od-faq .accordion-item{
  border:none;background:#fff;border-radius:var(--r-md);margin-bottom:12px;
  box-shadow:var(--sh-1);overflow:hidden;position:relative;
}
.od-faq .accordion-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:transparent;transition:background .2s ease;
}
.od-faq .accordion-item:has(.accordion-button:not(.collapsed))::before{background:var(--od-accent);}
.od-faq .accordion-button{
  background:#fff;color:var(--od-ink);font-size:17px;font-weight:600;
  padding:20px 22px;box-shadow:none;border:none;line-height:1.55;
  font-family:"Noto Serif SC","Source Han Serif SC",serif;
}
.od-faq .accordion-button:not(.collapsed){color:var(--od-brand-900);background:#fff;}
.od-faq .accordion-button:focus{box-shadow:0 0 0 3px rgba(192,96,58,.16);}
.od-faq .accordion-button::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;font-size:13px;color:var(--od-accent);
  width:auto;height:auto;transform:rotate(0);transition:transform .25s ease;
}
.od-faq .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.od-faq .accordion-body{padding:0 22px 22px;font-size:15px;color:var(--od-brand-700);line-height:1.8;}

/* ============ CTA ============ */
.od-cta-band{
  background:linear-gradient(135deg,var(--od-brand-900),var(--od-brand-700));
  border-radius:var(--r-lg);padding:48px;color:#F3EBE1;
  display:grid;grid-template-columns:1.5fr 1fr;gap:32px;align-items:center;
}
.od-cta-band h2{color:#F6EFE6;font-size:30px;margin-bottom:12px;}
.od-cta-band p{color:rgba(243,235,225,.78);font-size:15.5px;margin:0;}
.od-cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end;}
.od-cta-band .od-btn-ghost{background:transparent;border-color:rgba(243,235,225,.5);color:#F3EBE1;}
.od-cta-band .od-btn-ghost:hover{background:rgba(243,235,225,.12);color:#fff;border-color:#F3EBE1;}
@media (max-width:991px){
  .od-cta-band{grid-template-columns:1fr;padding:36px;text-align:left;}
  .od-cta-actions{justify-content:flex-start;}
}

/* ============ 页脚 ============ */
.od-footer{background:var(--od-brand-900);color:rgba(243,235,225,.82);padding:64px 0 0;margin-top:0;}
.od-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:32px;padding-bottom:40px;}
.od-footer h4{color:#F6EFE6;font-size:15.5px;margin-bottom:16px;font-family:inherit;font-weight:600;}
.od-footer a{color:rgba(243,235,225,.82);font-size:14.5px;}
.od-footer a:hover{color:var(--od-champagne);}
.od-footer ul li{margin-bottom:10px;}
.od-footer-brand .od-logo strong{color:#F6EFE6;}
.od-footer-brand .od-logo strong em{color:var(--od-champagne);}
.od-footer-brand .od-logo span{color:rgba(243,235,225,.6);}
.od-footer-brand p{font-size:14.5px;margin:16px 0 20px;max-width:34ch;line-height:1.8;}
.od-social{display:flex;gap:10px;}
.od-social a{
  width:38px;height:38px;border-radius:50%;border:1px solid rgba(243,235,225,.24);
  display:inline-flex;align-items:center;justify-content:center;color:#F3EBE1;
  transition:background .2s,border-color .2s,color .2s;
}
.od-social a:hover{background:rgba(201,168,124,.18);border-color:var(--od-champagne);color:var(--od-champagne);}
.od-subscribe{display:flex;gap:8px;margin-top:18px;}
.od-subscribe input{
  flex:1;height:44px;border-radius:var(--r-pill);border:1px solid rgba(243,235,225,.24);
  background:rgba(255,255,255,.06);color:#F3EBE1;padding:0 16px;font-size:14px;
}
.od-subscribe input::placeholder{color:rgba(243,235,225,.5);}
.od-subscribe input:focus{outline:none;border-color:var(--od-champagne);box-shadow:0 0 0 4px rgba(201,168,124,.16);}
.od-subscribe button{
  height:44px;padding:0 20px;border-radius:var(--r-pill);border:none;
  background:linear-gradient(135deg,var(--od-accent),var(--od-accent-600));
  color:#fff;font-size:14px;cursor:pointer;transition:transform .2s,box-shadow .2s;
}
.od-subscribe button:hover{transform:translateY(-1px);box-shadow:var(--sh-2);}
.od-privacy{font-size:12.5px;color:rgba(243,235,225,.55);margin-top:10px;}
.od-footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(243,235,225,.6);
}
@media (max-width:991px){.od-footer-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:575px){
  .od-footer{padding-top:48px;}
  .od-footer-grid{grid-template-columns:1fr;gap:26px;}
  .od-footer-bottom{flex-direction:column;}
}

/* roulang page: article */
:root{
  --od-ink:#2E2320;
  --od-brand-900:#3A2A23;
  --od-brand-700:#5A4034;
  --od-brand-500:#8A6650;
  --od-accent:#C0603A;
  --od-accent-600:#A44E2C;
  --od-mist:#7C8B84;
  --od-sand:#F3EBE1;
  --od-surface:#FFFFFF;
  --od-surface-2:#FBF7F2;
  --od-line:#E4D9CC;
  --od-champagne:#C9A87C;

  --r-sm:10px;
  --r-md:16px;
  --r-lg:26px;
  --r-pill:999px;

  --sh-1:0 1px 2px rgba(46,35,32,.06);
  --sh-2:0 10px 30px -12px rgba(46,35,32,.18);
  --sh-3:0 24px 60px -20px rgba(46,35,32,.28);

  --od-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --od-sans:-apple-system,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;

  --bs-primary:#C0603A;
  --bs-body-color:#2E2320;
  --bs-body-bg:#FBF7F2;
  --bs-border-color:#E4D9CC;
  --bs-border-radius:16px;
  --bs-link-color:#5A4034;
  --bs-link-hover-color:#C0603A;
  --bs-font-sans-serif:var(--od-sans);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--od-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--od-ink);
  background:var(--od-surface-2);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--od-brand-700);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--od-accent);}
button,input{font-family:inherit;}
h1,h2,h3,h4{font-family:var(--od-serif);color:var(--od-ink);line-height:1.35;margin:0;letter-spacing:0;}
p{margin:0 0 1.2em;}
ul,ol{padding-left:1.4em;}
:focus-visible{outline:2px solid var(--od-accent);outline-offset:2px;}

.container-od{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1400px){
  .container-od{max-width:1280px;}
}

/* ============ 顶部条 ============ */
.od-header{position:sticky;top:0;z-index:1030;transition:box-shadow .25s ease;}
.od-header.is-stuck{box-shadow:var(--sh-2);}
.od-topbar{
  background:var(--od-brand-900);
  color:rgba(245,237,227,.82);
  font-size:12.5px;
  height:36px;
  overflow:hidden;
  transition:height .28s ease,opacity .28s ease;
}
.od-header.is-scrolled .od-topbar{height:0;opacity:0;}
.od-topbar-inner{display:flex;align-items:center;justify-content:space-between;height:36px;gap:16px;}
.od-topbar-left,.od-topbar-right{display:flex;align-items:center;gap:10px;white-space:nowrap;}
.od-topbar .dot{width:3px;height:3px;border-radius:50%;background:rgba(245,237,227,.4);display:inline-block;}
.od-topbar a{color:rgba(245,237,227,.9);}
.od-topbar a:hover{color:#fff;}
.od-topbar i{color:var(--od-champagne);margin-right:4px;}

/* ============ 导航 ============ */
.od-nav{background:var(--od-surface);border-bottom:1px solid var(--od-line);padding:0;}
.od-nav-inner{display:flex;align-items:center;gap:14px;min-height:74px;flex-wrap:wrap;}
.od-logo{display:flex;flex-direction:column;line-height:1.2;text-decoration:none;padding:6px 0;flex-shrink:0;}
.od-logo strong{
  font-family:var(--od-serif);
  font-size:23px;
  font-weight:700;
  color:var(--od-brand-900);
  letter-spacing:0;
}
.od-logo strong em{font-style:normal;color:var(--od-accent);}
.od-logo span{font-size:11px;color:var(--od-mist);letter-spacing:0;margin-top:3px;}

.od-menu{display:flex;align-items:center;list-style:none;margin:0;padding:0;gap:4px;}
.od-menu>li{position:relative;}
.od-menu>li>a{
  display:block;
  padding:10px 15px;
  font-size:15px;
  font-weight:500;
  color:var(--od-ink);
  border-radius:var(--r-sm);
  position:relative;
}
.od-menu>li>a:hover{color:var(--od-brand-700);background:rgba(138,102,80,.08);}
.od-menu>li>a.active{color:var(--od-brand-900);}
.od-menu>li>a.active::after{
  content:"";
  position:absolute;
  left:15px;right:15px;bottom:4px;
  height:2px;
  background:var(--od-accent);
  border-radius:2px;
}

.od-mega{
  position:absolute;
  top:calc(100% + 6px);
  left:50%;
  width:min(740px,92vw);
  transform:translate(-50%,10px);
  background:var(--od-surface);
  border:1px solid var(--od-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-3);
  padding:24px;
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:24px;
  opacity:0;
  visibility:hidden;
  transition:opacity .18s ease,transform .18s ease,visibility .18s;
  z-index:1050;
}
.od-menu>li.dropdown:hover>.od-mega,
.od-menu>li.dropdown:focus-within>.od-mega{
  opacity:1;visibility:visible;transform:translate(-50%,0);
}
.od-mega h4{font-size:14px;color:var(--od-brand-700);font-family:var(--od-sans);font-weight:600;margin-bottom:12px;}
.od-mega-list{list-style:none;margin:0;padding:0;}
.od-mega-list li{margin-bottom:4px;}
.od-mega-list a{
  display:flex;align-items:center;gap:8px;
  font-size:14px;color:var(--od-ink);
  padding:8px 10px;border-radius:var(--r-sm);
}
.od-mega-list a::before{
  content:"";
  width:6px;height:6px;border-radius:1px;
  background:var(--od-accent);
  opacity:.65;
  flex-shrink:0;
}
.od-mega-list a:hover{background:var(--od-surface-2);color:var(--od-accent);}
.od-mega-card{
  display:block;
  border:1px solid var(--od-line);
  border-radius:var(--r-md);
  overflow:hidden;
  background:var(--od-surface);
}
.od-mega-card img{width:100%;aspect-ratio:3/2;object-fit:cover;background:var(--od-sand);}
.od-mega-card-body{padding:14px 16px;}
.od-mega-card-body strong{display:block;font-size:14.5px;color:var(--od-brand-900);margin-bottom:4px;}
.od-mega-card-body span{font-size:12.5px;color:var(--od-mist);}
.od-mega-foot{
  grid-column:1 / -1;
  border-top:1px solid var(--od-line);
  padding-top:16px;
  display:flex;
  flex-wrap:wrap;
  gap:20px;
}
.od-mega-foot a{font-size:13.5px;color:var(--od-brand-700);display:flex;gap:8px;align-items:baseline;}
.od-mega-foot a em{font-style:normal;color:var(--od-mist);font-size:12.5px;font-variant-numeric:tabular-nums;}

.od-nav-actions{display:flex;align-items:center;gap:8px;margin-left:10px;}
.od-search{position:relative;display:flex;align-items:center;}
.od-search input{
  width:0;padding:0;border:0;opacity:0;
  height:38px;border-radius:var(--r-pill);
  background:var(--od-surface-2);
  font-size:14px;color:var(--od-ink);
  transition:width .25s ease,opacity .25s ease,padding .25s ease;
}
.od-search input::placeholder{color:var(--od-mist);}
.od-search:focus-within input{width:210px;padding:0 16px;opacity:1;border:1px solid var(--od-line);}
.od-icon-btn{
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--od-line);
  background:var(--od-surface);
  color:var(--od-brand-700);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.od-icon-btn:hover{background:var(--od-surface-2);color:var(--od-accent);border-color:var(--od-brand-500);}
.od-dropdown{
  border:1px solid var(--od-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-3);
  padding:8px;
  min-width:230px;
  --bs-dropdown-link-active-bg:var(--od-surface-2);
  --bs-dropdown-link-active-color:var(--od-accent);
}
.od-dropdown .dropdown-item{border-radius:var(--r-sm);font-size:14px;color:var(--od-ink);padding:9px 12px;}
.od-dropdown .dropdown-item:hover,
.od-dropdown .dropdown-item:focus{background:var(--od-surface-2);color:var(--od-accent);}
.od-dropdown .dropdown-header{font-size:12px;color:var(--od-mist);padding:8px 12px 4px;}

.navbar-toggler{
  border:1px solid var(--od-line);
  border-radius:var(--r-sm);
  padding:6px 11px;
  color:var(--od-brand-900);
  font-size:17px;
}
.navbar-toggler:focus{box-shadow:none;}

/* ============ 面包屑与栏目头 ============ */
.od-crumb-band{
  background:var(--od-sand);
  border-bottom:1px solid var(--od-line);
  padding:26px 0 42px;
}
.od-crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--od-mist);
}
.od-crumb a{color:var(--od-mist);}
.od-crumb a:hover{color:var(--od-accent);}
.od-crumb .sep{color:var(--od-mist);opacity:.7;}
.od-crumb .current{color:var(--od-brand-700);}
.od-article-title{
  font-size:clamp(30px,3.8vw,44px);
  line-height:1.35;
  margin:22px 0 0;
  max-width:960px;
  overflow-wrap:break-word;
  word-break:break-word;
}
.od-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;
  margin-top:20px;
  font-size:13.5px;
  color:var(--od-mist);
  font-variant-numeric:tabular-nums;
}
.od-meta .sep{width:3px;height:3px;border-radius:50%;background:var(--od-mist);opacity:.55;display:inline-block;}
.od-meta .cat{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  background:rgba(124,139,132,.12);
  border:1px solid rgba(124,139,132,.3);
  color:var(--od-brand-700);
  font-size:12.5px;
}

/* ============ 正文区 ============ */
.od-article-section{padding:52px 0 88px;}
.od-article-card{
  max-width:980px;
  margin:0 auto;
  background:var(--od-surface);
  border:1px solid var(--od-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:48px 60px 44px;
}
.od-cover{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--r-md);
  background:var(--od-sand);
  margin-bottom:40px;
}
.od-prose{max-width:800px;margin:0 auto;font-size:16px;line-height:1.85;color:var(--od-ink);}
.od-prose>*:first-child{margin-top:0;}
.od-prose h2{font-size:clamp(22px,2.4vw,28px);margin:1.7em 0 .7em;}
.od-prose h3{font-size:clamp(18px,1.9vw,20px);margin:1.5em 0 .6em;color:var(--od-brand-700);}
.od-prose p{margin:0 0 1.2em;line-height:1.85;}
.od-prose ul,.od-prose ol{margin:0 0 1.3em;padding-left:1.4em;}
.od-prose li{margin-bottom:.5em;line-height:1.8;}
.od-prose blockquote{
  margin:1.5em 0;
  padding:16px 22px;
  background:var(--od-sand);
  border-left:3px solid var(--od-accent);
  border-radius:var(--r-sm);
  color:var(--od-brand-700);
}
.od-prose blockquote p:last-child{margin-bottom:0;}
.od-prose img{border-radius:var(--r-sm);margin:1.4em 0;width:100%;height:auto;}
.od-prose a{color:var(--od-accent);border-bottom:1px solid rgba(192,96,58,.35);}
.od-prose a:hover{color:var(--od-accent-600);}
.od-prose table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  margin:1.5em 0;
  font-size:14.5px;
  background:var(--od-surface-2);
  border:1px solid var(--od-line);
  border-radius:var(--r-sm);
  overflow:hidden;
}
.od-prose th,.od-prose td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--od-line);}
.od-prose tr:last-child td{border-bottom:0;}
.od-prose th{background:rgba(243,235,225,.7);font-weight:600;color:var(--od-brand-900);}

.od-tags{
  max-width:800px;margin:44px auto 0;
  padding-top:26px;
  border-top:1px solid var(--od-line);
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
}
.od-tags .label{font-size:13px;color:var(--od-mist);margin-right:4px;}
.od-tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--od-line);
  background:var(--od-surface);
  font-size:13px;
  color:var(--od-brand-700);
}
.od-tag:hover{border-color:var(--od-accent);color:var(--od-accent);background:rgba(192,96,58,.06);}

.od-empty{
  max-width:800px;margin:0 auto;text-align:center;
  padding:60px 24px;
  border:1px dashed rgba(124,139,132,.55);
  border-radius:var(--r-md);
  background:var(--od-surface-2);
}
.od-empty h2{font-size:24px;margin-bottom:12px;}
.od-empty p{color:var(--od-mist);font-size:14.5px;margin-bottom:24px;}

/* ============ 按钮 ============ */
.od-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  text-decoration:none;
  line-height:1.4;
}
.od-btn-primary{
  background:linear-gradient(135deg,var(--od-accent),var(--od-accent-600));
  color:#fff;
  box-shadow:var(--sh-1);
}
.od-btn-primary:hover{background:var(--od-accent-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.od-btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1);}
.od-btn-ghost{
  background:var(--od-surface);
  border-color:var(--od-line);
  color:var(--od-brand-900);
}
.od-btn-ghost:hover{border-color:var(--od-brand-500);background:rgba(138,102,80,.08);color:var(--od-brand-900);}
.od-btn:disabled,.od-btn.disabled{opacity:.45;box-shadow:none;pointer-events:none;}

/* ============ 相关推荐 ============ */
.od-related{padding:0 0 88px;}
.od-related-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:32px;flex-wrap:wrap;
}
.od-related-head h2{font-size:clamp(24px,2.6vw,32px);}
.od-related-head p{margin:8px 0 0;color:var(--od-mist);font-size:14px;}
.od-related-head .more{font-size:14px;color:var(--od-accent);font-weight:600;}
.od-rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.od-rel-card{
  display:flex;flex-direction:column;
  background:var(--od-surface);
  border:1px solid var(--od-line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.od-rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(138,102,80,.4);}
.od-rel-thumb{position:relative;overflow:hidden;}
.od-rel-thumb img{width:100%;aspect-ratio:3/2;object-fit:cover;background:var(--od-sand);transition:transform .3s ease;}
.od-rel-card:hover .od-rel-thumb img{transform:scale(1.03);}
.od-pill{
  display:inline-flex;align-items:center;
  padding:5px 12px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.92);
  border:1px solid var(--od-champagne);
  font-size:12px;
  color:var(--od-brand-700);
  position:absolute;left:14px;bottom:14px;
}
.od-rel-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1;}
.od-rel-body h3{font-size:17px;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.od-rel-body p{font-size:13.5px;color:var(--od-mist);line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.od-rel-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--od-mist);font-variant-numeric:tabular-nums;
}
.od-rel-foot span.more{color:var(--od-accent);font-weight:600;}

.od-back-row{
  max-width:980px;margin:36px auto 0;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:center;
}

/* ============ CTA 带 ============ */
.od-cta-band{
  background:linear-gradient(135deg,var(--od-brand-900),var(--od-brand-700));
  color:#F5EDE3;
  padding:64px 0;
}
.od-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.od-cta-inner h2{color:#F7F0E7;font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;}
.od-cta-inner p{color:rgba(245,237,227,.78);font-size:14.5px;margin:0;}
.od-cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.od-cta-actions .tel{color:rgba(245,237,227,.82);font-size:14px;font-variant-numeric:tabular-nums;}
.od-cta-actions .tel strong{color:#fff;font-size:17px;font-family:var(--od-sans);}

/* ============ 页脚 ============ */
.od-footer{background:var(--od-brand-900);color:rgba(245,237,227,.76);padding:68px 0 0;font-size:14px;}
.od-footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1.5fr;
  gap:40px;
  padding-bottom:48px;
}
.od-footer .od-logo strong{color:#F7F0E7;}
.od-footer .od-logo strong em{color:var(--od-champagne);}
.od-footer .od-logo span{color:rgba(245,237,227,.6);}
.od-footer-brand p{margin:18px 0;color:rgba(245,237,227,.7);font-size:13.5px;line-height:1.8;max-width:340px;}
.od-footer h4{color:#F7F0E7;font-size:15px;font-family:var(--od-sans);font-weight:600;margin-bottom:18px;}
.od-footer ul{list-style:none;margin:0;padding:0;}
.od-footer ul li{margin-bottom:10px;}
.od-footer ul li a{color:rgba(245,237,227,.72);font-size:13.5px;}
.od-footer ul li a:hover{color:#fff;}
.od-social{display:flex;gap:10px;}
.od-social a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(245,237,227,.24);
  display:inline-flex;align-items:center;justify-content:center;
  color:rgba(245,237,227,.8);
}
.od-social a:hover{background:rgba(245,237,227,.1);color:#fff;border-color:rgba(245,237,227,.45);}
.od-subscribe{
  display:flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.07);
  border-radius:var(--r-pill);
  padding:4px;
  margin-top:16px;
}
.od-subscribe input{
  flex:1;min-width:0;
  background:transparent;border:0;outline:none;
  color:#fff;font-size:13.5px;padding:9px 14px;
}
.od-subscribe input::placeholder{color:rgba(245,237,227,.5);}
.od-subscribe button{
  border:0;border-radius:var(--r-pill);
  background:var(--od-accent);color:#fff;
  padding:9px 18px;font-size:13.5px;cursor:pointer;
  transition:background-color .18s ease;
}
.od-subscribe button:hover{background:var(--od-accent-600);}
.od-privacy{font-size:12.5px;color:rgba(245,237,227,.55);margin:12px 0 0;}
.od-footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(245,237,227,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .od-article-card{padding:40px 40px 40px;}
  .od-footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:32px;}
  .od-footer-grid>div:last-child{grid-column:1 / -1;}
}
@media (max-width:991.98px){
  .od-nav-inner{min-height:66px;}
  .od-menu{
    flex-direction:column;align-items:stretch;
    gap:0;padding:10px 0;width:100%;
  }
  .od-menu>li>a{padding:12px 6px;border-bottom:1px solid var(--od-line);border-radius:0;}
  .od-menu>li>a.active::after{left:6px;right:auto;width:20px;bottom:6px;}
  .od-mega{
    position:static;transform:none;opacity:1;visibility:visible;
    width:auto;box-shadow:none;border:0;border-left:2px solid var(--od-line);
    border-radius:0;padding:8px 0 8px 14px;margin:6px 0 12px;
    grid-template-columns:1fr;gap:16px;
  }
  .od-menu>li.dropdown:hover>.od-mega,
  .od-menu>li.dropdown:focus-within>.od-mega{transform:none;}
  .od-nav-actions{
    width:100%;margin:0;padding:14px 0 4px;
    border-top:1px solid var(--od-line);
  }
  .od-search:focus-within input{width:100%;}
  .od-search{flex:1;}
  .od-article-section{padding:40px 0 64px;}
  .od-article-card{padding:32px 28px;}
  .od-rel-grid{grid-template-columns:repeat(2,1fr);}
  .od-footer-grid{grid-template-columns:1fr 1fr;}
  .od-footer-brand{grid-column:1 / -1;}
}
@media (max-width:767.98px){
  .od-topbar-left span:nth-child(3),
  .od-topbar-left span:nth-child(4),
  .od-topbar-left span:nth-child(5){display:none;}
  .od-crumb-band{padding:20px 0 32px;}
  .od-article-card{padding:26px 20px;}
  .od-cover{margin-bottom:28px;}
  .od-prose{font-size:16px;}
  .od-rel-grid{grid-template-columns:1fr;}
  .od-cta-inner{flex-direction:column;align-items:flex-start;}
  .od-footer-grid{grid-template-columns:1fr;gap:28px;}
  .od-footer{padding:48px 0 0;}
  .od-back-row{justify-content:stretch;}
  .od-back-row .od-btn{width:100%;}
}
@media (max-width:575.98px){
  body{font-size:15.5px;}
  .od-logo strong{font-size:20px;}
  .od-topbar{font-size:12px;}
  .od-meta{gap:6px 12px;}
  .od-article-title{font-size:28px;}
}

/* roulang page: category2 */
:root{
  --od-ink:#2E2320;
  --od-brand-900:#3A2A23;
  --od-brand-700:#5A4034;
  --od-brand-500:#8A6650;
  --od-accent:#C0603A;
  --od-accent-600:#A44E2C;
  --od-mist:#7C8B84;
  --od-sand:#F3EBE1;
  --od-surface:#FFFFFF;
  --od-surface-2:#FBF7F2;
  --od-line:#E4D9CC;
  --od-champagne:#C9A87C;
  --r-sm:10px; --r-md:16px; --r-lg:26px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(46,35,32,.06);
  --sh-2:0 10px 30px -12px rgba(46,35,32,.18);
  --sh-3:0 24px 60px -20px rgba(46,35,32,.28);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--od-sand);color:var(--od-ink);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:"Noto Serif SC","Source Han Serif SC",Georgia,serif;color:var(--od-ink);letter-spacing:0;line-height:1.35;margin:0;}
p{margin:0 0 14px;}
a{color:var(--od-brand-700);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--od-accent);}
img{max-width:100%;display:block;}
ul{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--od-accent);outline-offset:2px;}
.container-od{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.container-od{max-width:1280px;}}

/* ============ 顶部条 ============ */
.od-topbar{background:var(--od-brand-900);color:#F1E7DC;font-size:12.5px;height:36px;display:flex;align-items:center;}
.od-topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.od-topbar-left,.od-topbar-right{display:flex;align-items:center;gap:10px;white-space:nowrap;}
.od-topbar a{color:#F1E7DC;}
.od-topbar a:hover{color:var(--od-champagne);}
.od-topbar .dot{width:4px;height:4px;border-radius:50%;background:rgba(241,231,220,.45);display:inline-block;}
.od-topbar i{margin-right:5px;color:var(--od-champagne);}
@media (max-width:767px){.od-topbar-left span:nth-child(n+3){display:none;}}

/* ============ 导航 ============ */
.od-header{position:sticky;top:0;z-index:1030;}
.od-nav{background:var(--od-surface);border-bottom:1px solid var(--od-line);padding:0;box-shadow:var(--sh-1);}
.od-nav-inner{display:flex;align-items:center;gap:20px;min-height:74px;}
.od-logo{display:flex;flex-direction:column;line-height:1.15;color:var(--od-brand-900);}
.od-logo strong{font-family:"Noto Serif SC",serif;font-size:24px;font-weight:700;letter-spacing:0;}
.od-logo strong em{font-style:normal;color:var(--od-accent);margin-left:2px;}
.od-logo span{font-size:11px;color:var(--od-mist);letter-spacing:0;margin-top:2px;}
.od-logo:hover{color:var(--od-brand-900);}
.od-menu{display:flex;align-items:center;gap:6px;}
.od-menu > li{position:relative;}
.od-menu > li > a{display:block;padding:26px 14px;font-size:15.5px;color:var(--od-brand-700);position:relative;}
.od-menu > li > a::after{content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;background:var(--od-accent);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;}
.od-menu > li > a:hover{color:var(--od-brand-900);}
.od-menu > li > a:hover::after,.od-menu > li > a.active::after{transform:scaleX(1);}
.od-menu > li > a.active{color:var(--od-brand-900);font-weight:600;}
.od-mega{
  position:absolute;top:100%;right:0;width:620px;background:var(--od-surface);
  border:1px solid var(--od-line);border-radius:var(--r-lg);box-shadow:var(--sh-3);
  padding:24px;display:grid;grid-template-columns:1fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .16s ease,transform .16s ease,visibility .16s;
}
.od-menu li.dropdown:hover .od-mega,.od-menu li.dropdown.open .od-mega{opacity:1;visibility:visible;transform:translateY(0);}
.od-mega h4{font-size:14px;font-family:inherit;font-weight:600;color:var(--od-brand-900);margin-bottom:10px;}
.od-mega-list li a{display:flex;align-items:center;gap:8px;padding:6px 0;font-size:14px;color:var(--od-brand-700);}
.od-mega-list li a::before{content:"";width:6px;height:6px;border-radius:1px;background:var(--od-accent);flex:0 0 6px;}
.od-mega-list li a:hover{color:var(--od-accent);}
.od-mega-card{background:var(--od-surface-2);border:1px solid var(--od-line);border-radius:var(--r-md);overflow:hidden;}
.od-mega-card img{aspect-ratio:3/2;object-fit:cover;width:100%;}
.od-mega-card div{padding:12px 14px;}
.od-mega-card strong{display:block;font-size:14.5px;color:var(--od-brand-900);}
.od-mega-card small{font-size:12.5px;color:var(--od-mist);}
.navbar-toggler{border:1px solid var(--od-line);border-radius:var(--r-sm);width:44px;height:42px;color:var(--od-brand-900);background:var(--od-surface-2);}
.navbar-toggler:focus{box-shadow:none;}
@media (max-width:991px){
  .od-menu{flex-direction:column;align-items:stretch;gap:0;padding:8px 0 18px;}
  .od-menu > li > a{padding:14px 4px;border-bottom:1px solid var(--od-line);}
  .od-menu > li > a::after{display:none;}
  .od-mega{position:static;width:100%;opacity:1;visibility:visible;transform:none;display:none;box-shadow:none;border-radius:var(--r-md);margin-bottom:12px;}
  .od-menu li.dropdown.open .od-mega{display:grid;}
  .od-mega{grid-template-columns:1fr;}
}

/* ============ 通用板块 ============ */
.od-section{padding:96px 0;}
.od-section.alt{background:var(--od-surface-2);border-top:1px solid var(--od-line);border-bottom:1px solid var(--od-line);}
.od-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px;}
.od-head h2{font-size:32px;}
.od-head p{color:var(--od-mist);margin:10px 0 0;font-size:15px;max-width:640px;}
@media (max-width:991px){.od-section{padding:72px 0;}.od-head h2{font-size:28px;}}
@media (max-width:575px){.od-section{padding:56px 0;}.od-head h2{font-size:24px;}.od-head{flex-direction:column;align-items:flex-start;}}

/* ============ 栏目头 ============ */
.od-pagehead{background:linear-gradient(135deg,#F6EFE6 0%,#EADFD1 100%);border-bottom:1px solid var(--od-line);padding:56px 0 48px;}
.od-crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--od-mist);margin-bottom:18px;flex-wrap:wrap;}
.od-crumb a{color:var(--od-mist);}
.od-crumb a:hover{color:var(--od-accent);}
.od-pagehead h1{font-size:44px;}
.od-pagehead .lead{margin-top:14px;font-size:16px;color:var(--od-brand-700);max-width:760px;}
.od-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.od-pill{display:inline-flex;align-items:center;gap:7px;padding:8px 16px;border-radius:var(--r-pill);border:1px solid var(--od-line);background:rgba(255,255,255,.75);font-size:14px;color:var(--od-brand-700);}
.od-pill:hover{border-color:var(--od-brand-500);background:#fff;color:var(--od-accent);}
.od-pill i{color:var(--od-accent);font-size:12px;}
@media (max-width:991px){.od-pagehead{padding:40px 0 36px;}.od-pagehead h1{font-size:32px;}}
@media (max-width:575px){.od-pagehead h1{font-size:28px;}}

/* ============ 首屏图文 ============ */
.od-hero{padding:64px 0 88px;background:linear-gradient(135deg,#F6EFE6 0%,#EADFD1 100%);}
.od-hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.od-hero h2{font-size:32px;margin-bottom:16px;}
.od-hero p{color:var(--od-brand-700);}
.od-hero-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-3);}
.od-hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.od-hero-float{position:absolute;right:16px;bottom:16px;background:rgba(124,139,132,.14);backdrop-filter:blur(2px);border:1px solid rgba(124,139,132,.4);border-radius:var(--r-md);padding:10px 14px;color:#2E2320;}
.od-hero-float b{font-size:18px;font-variant-numeric:tabular-nums;}
.od-hero-float small{font-size:12px;color:var(--od-brand-700);display:block;}
@media (max-width:991px){.od-hero-grid{grid-template-columns:1fr;gap:32px;}.od-hero h2{font-size:28px;}}
@media (max-width:575px){.od-hero{padding:40px 0 56px;}.od-hero h2{font-size:24px;}}

/* ============ 按钮 ============ */
.btn-od,.btn-od-ghost,.btn-od-light{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-pill);padding:12px 26px;font-size:15px;border:1px solid transparent;cursor:pointer;transition:all .18s ease;}
.btn-od{background-image:linear-gradient(135deg,var(--od-accent),var(--od-accent-600));color:#fff;box-shadow:var(--sh-1);}
.btn-od:hover{background-image:linear-gradient(135deg,var(--od-accent-600),var(--od-accent-600));color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-od:active,.btn-od-ghost:active{transform:translateY(1px);}
.btn-od-ghost{background:transparent;border-color:var(--od-brand-500);color:var(--od-brand-700);}
.btn-od-ghost:hover{background:rgba(138,102,80,.08);border-color:var(--od-brand-700);color:var(--od-brand-900);}
.btn-od-light{background:#fff;color:var(--od-brand-900);border-color:var(--od-line);}
.btn-od-light:hover{background:var(--od-sand);color:var(--od-brand-900);}
.btn-od[disabled],.btn-od-ghost[disabled]{opacity:.45;box-shadow:none;pointer-events:none;}
.od-btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
@media (max-width:575px){.od-btn-row .btn-od,.od-btn-row .btn-od-ghost{width:100%;}}

/* ============ 场景段落 ============ */
.od-scene{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:56px 0;border-bottom:1px dashed var(--od-line);}
.od-scene:last-child{border-bottom:0;}
.od-scene.rev .od-scene-media{order:2;}
.od-scene-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);}
.od-scene-media img{width:100%;aspect-ratio:3/2;object-fit:cover;}
.od-scene h3{font-size:22px;margin-bottom:12px;}
.od-scene p{color:var(--od-brand-700);font-size:15.5px;}
.od-points{margin:18px 0 22px;}
.od-points li{display:flex;gap:10px;align-items:flex-start;padding:5px 0;font-size:15px;color:var(--od-ink);}
.od-points li::before{content:"";width:6px;height:6px;border-radius:1px;background:var(--od-accent);margin-top:11px;flex:0 0 6px;}
.od-badges{display:flex;flex-wrap:wrap;gap:12px;}
.od-badge{background:rgba(124,139,132,.08);border:1px solid rgba(124,139,132,.35);border-radius:var(--r-pill);padding:6px 14px;display:inline-flex;align-items:baseline;gap:4px;}
.od-badge b{font-size:18px;font-variant-numeric:tabular-nums;color:var(--od-brand-900);font-family:-apple-system,"PingFang SC",sans-serif;}
.od-badge span{font-size:12px;color:var(--od-mist);}
@media (max-width:991px){
  .od-scene{grid-template-columns:1fr;gap:24px;padding:40px 0;}
  .od-scene.rev .od-scene-media{order:0;}
}

/* ============ 案例条带 ============ */
.od-case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.od-case{background:var(--od-surface);border:1px solid var(--od-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.od-case:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(192,96,58,.35);}
.od-case-img{position:relative;overflow:hidden;}
.od-case-img img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s ease;}
.od-case:hover .od-case-img img{transform:scale(1.03);}
.od-case-tag{position:absolute;left:12px;bottom:12px;background:rgba(255,255,255,.92);border:1px solid var(--od-line);border-radius:var(--r-pill);padding:4px 12px;font-size:12.5px;color:var(--od-brand-700);}
.od-case-body{padding:20px 22px 24px;}
.od-case-body h3{font-size:19px;margin-bottom:8px;}
.od-case-body p{font-size:14.5px;color:var(--od-brand-700);margin-bottom:14px;}
@media (max-width:991px){.od-case-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:767px){.od-case-grid{grid-template-columns:1fr;}}

/* ============ 流程条 ============ */
.od-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.od-flow-item{background:var(--od-surface);border:1px solid var(--od-line);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1);}
.od-flow-item span{font-size:13px;color:var(--od-accent);font-variant-numeric:tabular-nums;font-weight:600;}
.od-flow-item h4{font-family:inherit;font-size:16px;margin:8px 0 6px;font-weight:600;color:var(--od-brand-900);}
.od-flow-item p{font-size:14px;color:var(--od-mist);margin:0;}
@media (max-width:991px){.od-flow{grid-template-columns:1fr 1fr;}}
@media (max-width:575px){.od-flow{grid-template-columns:1fr;}}

/* ============ FAQ ============ */
.od-faq .accordion-item{background:var(--od-surface);border:1px solid var(--od-line);border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;}
.od-faq .accordion-button{background:var(--od-surface);color:var(--od-brand-900);font-size:17px;font-weight:600;padding:18px 22px;box-shadow:none;border-radius:var(--r-md);border-left:3px solid transparent;}
.od-faq .accordion-button:not(.collapsed){color:var(--od-brand-900);background:var(--od-surface-2);border-left:3px solid var(--od-accent);}
.od-faq .accordion-button::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:14px;background-image:none;color:var(--od-accent);transition:transform .2s ease;width:auto;height:auto;display:flex;align-items:center;}
.od-faq .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.od-faq .accordion-body{font-size:15px;line-height:1.8;color:var(--od-brand-700);padding:4px 22px 20px;}
@media (max-width:575px){.od-faq .accordion-button{font-size:15.5px;padding:16px 16px;}}

/* ============ CTA ============ */
.od-cta{background:linear-gradient(135deg,var(--od-brand-900),var(--od-brand-700));color:#F4EBE1;padding:72px 0;}
.od-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;}
.od-cta h2{color:#fff;font-size:32px;}
.od-cta p{color:rgba(244,235,225,.82);margin:12px 0 0;font-size:15px;}
.od-cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.od-cta-tel{font-size:14px;color:rgba(244,235,225,.9);}
@media (max-width:991px){.od-cta-inner{flex-direction:column;align-items:flex-start;}.od-cta h2{font-size:26px;}}

/* ============ 页脚 ============ */
.od-footer{background:var(--od-brand-900);color:#EFE3D6;padding:64px 0 0;font-size:14px;}
.od-footer a{color:rgba(239,227,214,.82);}
.od-footer a:hover{color:var(--od-champagne);}
.od-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:44px;}
.od-footer-brand .od-logo strong{color:#fff;}
.od-footer-brand .od-logo strong em{color:var(--od-champagne);}
.od-footer-brand .od-logo span{color:rgba(239,227,214,.6);}
.od-footer-brand p{color:rgba(239,227,214,.72);margin-top:16px;font-size:13.5px;line-height:1.8;}
.od-footer h4{font-family:inherit;font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.od-footer ul li{padding:5px 0;}
.od-footer ul li a{font-size:13.5px;}
.od-social{display:flex;gap:10px;margin-top:18px;}
.od-social a{width:36px;height:36px;border-radius:var(--r-pill);border:1px solid rgba(239,227,214,.28);display:flex;align-items:center;justify-content:center;}
.od-social a:hover{border-color:var(--od-champagne);background:rgba(201,168,124,.12);}
.od-subscribe{display:flex;margin-top:14px;background:rgba(255,255,255,.08);border:1px solid rgba(239,227,214,.24);border-radius:var(--r-pill);padding:4px;overflow:hidden;}
.od-subscribe input{flex:1;background:transparent;border:0;color:#fff;padding:9px 14px;font-size:13.5px;outline:none;}
.od-subscribe input::placeholder{color:rgba(239,227,214,.55);}
.od-subscribe button{border:0;background-image:linear-gradient(135deg,var(--od-accent),var(--od-accent-600));color:#fff;border-radius:var(--r-pill);padding:9px 18px;font-size:13.5px;cursor:pointer;}
.od-subscribe button:hover{background-image:linear-gradient(135deg,var(--od-accent-600),var(--od-accent-600));}
.od-privacy{font-size:12.5px;color:rgba(239,227,214,.6);margin:12px 0 0;}
.od-footer-bottom{border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:12px;padding:18px 0;font-size:12.5px;color:rgba(239,227,214,.62);flex-wrap:wrap;}
@media (max-width:991px){.od-footer-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:575px){.od-footer-grid{grid-template-columns:1fr;gap:26px;}.od-footer-bottom{flex-direction:column;}}

/* roulang page: category3 */
:root{
  --od-ink:#2E2320;
  --od-brand-900:#3A2A23;
  --od-brand-700:#5A4034;
  --od-brand-500:#8A6650;
  --od-accent:#C0603A;
  --od-accent-600:#A44E2C;
  --od-mist:#7C8B84;
  --od-sand:#F3EBE1;
  --od-surface:#FFFFFF;
  --od-surface-2:#FBF7F2;
  --od-line:#E4D9CC;
  --od-champagne:#C9A87C;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:26px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(46,35,32,.06);
  --sh-2:0 10px 30px -12px rgba(46,35,32,.18);
  --sh-3:0 24px 60px -20px rgba(46,35,32,.28);
  --bs-primary:#C0603A;
  --bs-body-color:#2E2320;
  --bs-body-bg:#F3EBE1;
  --bs-border-color:#E4D9CC;
  --bs-border-radius:16px;
  --bs-link-color:#8A6650;
  --bs-link-hover-color:#A44E2C;
  --bs-font-sans-serif:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--od-sand);
  color:var(--od-ink);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--od-brand-700);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--od-accent)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,h5{
  font-family:"Noto Serif SC","Source Han Serif SC",serif;
  color:var(--od-ink);
  line-height:1.35;
  letter-spacing:0;
  margin:0;
  font-weight:700;
}
h1{font-size:44px}
h2{font-size:32px}
h3{font-size:22px}
h4{font-size:18px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--od-accent);outline-offset:2px}

/* 容器 */
.container-od{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media(min-width:1400px){.container-od{max-width:1280px}}

.od-section{padding:96px 0}
.od-section-alt{background:var(--od-surface-2);border-top:1px solid var(--od-line);border-bottom:1px solid var(--od-line)}
.od-sec-head{max-width:760px;margin-bottom:40px}
.od-sec-head h2{margin-bottom:14px}
.od-sec-head p{color:var(--od-brand-700);font-size:16px}
.od-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--od-mist);
  letter-spacing:.04em;margin-bottom:12px;
  font-variant-numeric:tabular-nums;
}
.od-eyebrow::before{content:"";width:22px;height:1px;background:var(--od-champagne)}

/* 按钮 */
.od-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:0 26px;height:48px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .18s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.od-btn-primary{
  background:linear-gradient(135deg,var(--od-accent),var(--od-accent-600));
  color:#FFF7F1;
  box-shadow:var(--sh-1);
}
.od-btn-primary:hover{
  background:linear-gradient(135deg,var(--od-accent-600),var(--od-accent-600));
  color:#FFF7F1;
  transform:translateY(-1px);
  box-shadow:var(--sh-2);
}
.od-btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1)}
.od-btn-ghost{
  background:transparent;color:var(--od-brand-700);
  border-color:var(--od-brand-500);
}
.od-btn-ghost:hover{
  background:rgba(138,102,80,.08);
  border-color:var(--od-brand-700);
  color:var(--od-brand-900);
}
.od-btn:disabled,.od-btn.disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
.od-btn-lg{height:54px;padding:0 32px;font-size:16px}
.od-btn-block{width:100%}

/* 标签与徽章 */
.od-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--od-brand-700);
  background:var(--od-sand);border:1px solid var(--od-line);
}
.od-tag{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;background:rgba(124,139,132,.10);
  color:var(--od-brand-700);border:1px solid rgba(124,139,132,.25);
}
.od-badges{display:flex;flex-wrap:wrap;gap:20px}
.od-badge-data{
  flex:1 1 180px;
  background:var(--od-surface);
  border:1px solid rgba(124,139,132,.3);
  border-radius:var(--r-pill);
  padding:10px 18px;
  display:flex;align-items:baseline;gap:8px;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  font-variant-numeric:tabular-nums;
  box-shadow:var(--sh-1);
}
.od-badge-data b{font-size:18px;color:var(--od-brand-900);line-height:1}
.od-badge-data span{font-size:12.5px;color:var(--od-mist)}

/* 顶部条 + 导航 */
.od-header{position:sticky;top:0;z-index:1030;background:var(--od-surface)}
.od-topbar{
  background:var(--od-brand-900);color:#F1E7DC;
  font-size:12.5px;height:36px;overflow:hidden;
  transition:height .26s ease,opacity .26s ease;
}
.od-header.scrolled .od-topbar{height:0;opacity:0}
.od-topbar-inner{display:flex;align-items:center;justify-content:space-between;height:36px}
.od-topbar-left,.od-topbar-right{display:flex;align-items:center;gap:10px}
.od-topbar a{color:#F1E7DC}
.od-topbar a:hover{color:var(--od-champagne)}
.od-topbar .dot{width:3px;height:3px;border-radius:50%;background:rgba(241,231,220,.45)}
.od-topbar i{color:var(--od-champagne);margin-right:4px}

.od-nav{
  background:var(--od-surface);
  border-bottom:1px solid var(--od-line);
  padding:0;
  transition:box-shadow .25s ease;
}
.od-header.scrolled .od-nav{box-shadow:var(--sh-2)}
.od-nav-inner{display:flex;align-items:center;gap:24px;min-height:76px}
.od-logo{display:flex;flex-direction:column;line-height:1.15;flex:0 0 auto}
.od-logo strong{
  font-family:"Noto Serif SC","Source Han Serif SC",serif;
  font-size:22px;color:var(--od-brand-900);letter-spacing:0;
}
.od-logo strong em{font-style:normal;color:var(--od-accent);margin-left:2px}
.od-logo span{font-size:11px;color:var(--od-mist);font-weight:400;margin-top:3px;letter-spacing:.02em}
.od-logo:hover strong{color:var(--od-brand-700)}

.navbar-toggler{
  border:1px solid var(--od-line);border-radius:var(--r-sm);
  padding:8px 12px;color:var(--od-brand-900);background:var(--od-surface);
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(192,96,58,.18)}
.navbar-toggler i{font-size:18px}

.od-menu{display:flex;align-items:center;gap:6px;margin:0}
.od-menu > li{position:relative}
.od-menu > li > a{
  display:block;padding:10px 16px;
  font-size:15px;font-weight:500;color:var(--od-brand-700);
  border-radius:var(--r-pill);
  position:relative;
}
.od-menu > li > a:hover{color:var(--od-brand-900);background:rgba(138,102,80,.08)}
.od-menu > li > a.active{color:var(--od-brand-900);font-weight:600}
.od-menu > li > a.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;
  height:2px;background:var(--od-accent);border-radius:2px;
}
.od-menu > li > a i{margin-left:5px;font-size:11px;color:var(--od-mist)}

/* Mega 面板 */
.od-mega{
  position:absolute;top:calc(100% + 12px);right:0;
  width:680px;
  background:var(--od-surface);
  border:1px solid var(--od-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-3);
  padding:24px;
  display:grid;grid-template-columns:1fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s;
  z-index:1040;
}
.od-mega-col h4{
  font-size:13px;color:var(--od-mist);font-weight:600;
  letter-spacing:.04em;margin-bottom:12px;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}
.od-mega-list li + li{margin-top:8px}
.od-mega-list a{
  display:flex;align-items:center;gap:10px;
  font-size:14.5px;color:var(--od-brand-700);
  padding:4px 0;
}
.od-mega-list a::before{
  content:"";width:6px;height:6px;border-radius:2px;
  background:var(--od-accent);flex:0 0 auto;
}
.od-mega-list a:hover{color:var(--od-accent);transform:translateX(2px)}
.od-mega-card{
  display:block;border:1px solid var(--od-line);border-radius:var(--r-md);
  overflow:hidden;background:var(--od-surface-2);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.od-mega-card + .od-mega-card{margin-top:12px}
.od-mega-card img{width:100%;height:96px;object-fit:cover}
.od-mega-card div{padding:10px 14px 12px}
.od-mega-card h5{
  font-size:15px;margin-bottom:2px;font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}
.od-mega-card span{font-size:12.5px;color:var(--od-mist)}
.od-mega-card span i{margin-left:4px;font-size:11px}
.od-mega-card:hover{border-color:var(--od-brand-500);box-shadow:var(--sh-2);transform:translateY(-2px)}
.od-mega-foot{
  grid-column:1 / -1;
  border-top:1px solid var(--od-line);
  margin-top:4px;padding-top:14px;
  display:flex;gap:24px;flex-wrap:wrap;
}
.od-mega-foot a{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--od-brand-700)}
.od-mega-foot a em{font-style:normal;color:var(--od-mist);font-size:12.5px;font-variant-numeric:tabular-nums}
.od-mega-foot a:hover{color:var(--od-accent)}
@media(min-width:992px){
  .od-menu > li.dropdown:hover > .od-mega,
  .od-menu > li.dropdown:focus-within > .od-mega{
    opacity:1;visibility:visible;transform:translateY(0);
  }
}
@media(max-width:991.98px){
  .od-nav-inner{flex-wrap:wrap;padding-top:12px;padding-bottom:12px;gap:12px}
  .od-menu{flex-direction:column;align-items:stretch;width:100%;padding:12px 0 4px}
  .od-menu > li > a{padding:12px 4px;border-radius:var(--r-sm)}
  .od-menu > li > a.active::after{left:4px;right:auto;width:22px;bottom:8px}
  .od-mega{
    position:static;width:100%;opacity:1;visibility:visible;transform:none;
    display:none;box-shadow:none;border-radius:var(--r-md);margin:6px 0 10px;padding:16px;grid-template-columns:1fr;
  }
  .od-menu > li.mega-open > .od-mega{display:grid}
  .od-mega-foot{grid-column:auto}
}

/* Hero 栏目头 */
.od-page-head{
  background:linear-gradient(135deg,#F6EFE6 0%,#EADFD1 100%);
  border-bottom:1px solid var(--od-line);
  padding:44px 0 64px;
}
.od-crumb{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--od-mist);margin-bottom:26px;
}
.od-crumb a{color:var(--od-mist)}
.od-crumb a:hover{color:var(--od-accent)}
.od-crumb .sep{color:var(--od-mist);opacity:.7}
.od-crumb .now{color:var(--od-brand-700)}
.od-head-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.od-head-grid h1{margin-bottom:16px}
.od-head-sub{font-size:17px;color:var(--od-brand-700);max-width:520px;margin-bottom:22px}
.od-anchor-row{display:flex;flex-wrap:wrap;gap:10px}
.od-anchor{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.75);border:1px solid var(--od-line);
  font-size:13.5px;color:var(--od-brand-700);
}
.od-anchor:hover{background:var(--od-surface);border-color:var(--od-brand-500);color:var(--od-accent)}
.od-head-figure{
  border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-3);border:1px solid rgba(255,255,255,.6);
  aspect-ratio:16/9;
}
.od-head-figure img{width:100%;height:100%;object-fit:cover}

/* 服务能力 2×2 卡 */
.od-cap-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.od-cap-card{
  background:var(--od-surface);
  border:1px solid var(--od-line);
  border-radius:var(--r-lg);
  padding:30px;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.od-cap-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(138,102,80,.32)}
.od-cap-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.od-cap-icon{
  width:48px;height:48px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(192,96,58,.10);color:var(--od-accent);font-size:19px;
}
.od-cap-card h3{margin-bottom:10px}
.od-cap-card p{color:var(--od-brand-700);font-size:15px;margin-bottom:16px}
.od-point-list li{
  position:relative;padding-left:16px;font-size:14.5px;color:var(--od-brand-700);
}
.od-point-list li + li{margin-top:8px}
.od-point-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:6px;height:6px;border-radius:2px;background:var(--od-accent);
}
.od-link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--od-accent);
  margin-top:18px;
}
.od-link-more i{font-size:12px;transition:transform .2s ease}
.od-link-more:hover{color:var(--od-accent-600)}
.od-link-more:hover i{transform:translateX(3px)}

/* 时间轴 */
.od-timeline{position:relative;margin-top:8px}
.od-timeline::before{
  content:"";position:absolute;left:50%;top:6px;bottom:6px;width:1px;
  background:var(--od-line);transform:translateX(-50%);
}
.od-tl-item{position:relative;width:50%;padding:0 56px 40px 0}
.od-tl-item:nth-child(even){margin-left:50%;padding:0 0 40px 56px}
.od-tl-item:last-child{padding-bottom:0}
.od-tl-dot{
  position:absolute;top:26px;right:-8px;
  width:15px;height:15px;border-radius:50%;
  background:var(--od-accent);
  box-shadow:0 0 0 5px rgba(192,96,58,.13);
}
.od-tl-item:nth-child(even) .od-tl-dot{left:-8px;right:auto}
.od-tl-card{
  background:var(--od-surface);
  border:1px solid var(--od-line);
  border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);
  transition:box-shadow .22s ease,transform .22s ease;
}
.od-tl-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.od-step{
  display:inline-block;font-size:12.5px;color:var(--od-brand-700);
  background:var(--od-sand);border:1px solid var(--od-line);
  border-radius:var(--r-pill);padding:3px 12px;margin-bottom:12px;
  font-variant-numeric:tabular-nums;
}
.od-tl-card h3{font-size:20px;margin-bottom:10px}
.od-tl-card p{font-size:14.5px;color:var(--od-brand-700)}
.od-tl-meta{
  margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;
}
.od-tl-meta span{
  font-size:12.5px;color:var(--od-mist);
  border:1px dashed rgba(124,139,132,.45);border-radius:var(--r-pill);
  padding:3px 11px;font-variant-numeric:tabular-nums;
}

/* 交付标准 */
.od-std-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.od-std-media{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--od-line);
  box-shadow:var(--sh-2);aspect-ratio:4/3;
}
.od-std-media img{width:100%;height:100%;object-fit:cover}
.od-std-list{margin:0 0 28px}
.od-std-list li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--od-line);
}
.od-std-list li:first-child{padding-top:0}
.od-std-list i{
  color:var(--od-accent);font-size:15px;margin-top:6px;
}
.od-std-list strong{display:block;font-size:16px;color:var(--od-ink);margin-bottom:4px}
.od-std-list span{font-size:14.5px;color:var(--od-brand-700)}

/* 咨询表单 */
.od-form-wrap{
  display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:start;
}
.od-form-aside h2{margin-bottom:16px}
.od-form-aside p{color:var(--od-brand-700);font-size:15.5px;margin-bottom:24px}
.od-form-aside .od-badges{flex-direction:column;gap:12px}
.od-form-card{
  background:var(--od-surface);
  border:1px solid var(--od-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-2);
  padding:32px;
}
.od-field{margin-bottom:18px}
.od-field label{
  display:block;font-size:14px;color:var(--od-brand-700);
  margin-bottom:8px;font-weight:500;
}
.od-field label em{font-style:normal;color:var(--od-accent)}
.od-input,.od-select,.od-textarea{
  width:100%;height:48px;
  border:1px solid var(--od-line);
  border-radius:12px;
  padding:0 14px;
  background:var(--od-surface-2);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.od-textarea{height:112px;padding:12px 14px;resize:vertical;line-height:1.7}
.od-input::placeholder,.od-textarea::placeholder{color:#AFA29A}
.od-input:focus,.od-select:focus,.od-textarea:focus{
  outline:none;background:var(--od-surface);
  border-color:var(--od-accent);
  box-shadow:0 0 0 4px rgba(192,96,58,.12);
}
.od-field.error .od-input,.od-field.error .od-textarea{
  border-color:var(--od-accent);background:rgba(192,96,58,.05);
}
.od-err{display:none;font-size:12.5px;color:var(--od-accent-600);margin-top:6px}
.od-field.error .od-err{display:block}
.od-form-foot{display:flex;align-items:center;justify-content:flex-end;gap:16px;margin-top:6px}
.od-privacy{font-size:12.5px;color:var(--od-mist);margin-top:14px}

/* FAQ */
.od-faq .accordion-item{
  background:var(--od-surface);
  border:0;border-radius:var(--r-md);overflow:hidden;
  margin-bottom:12px;box-shadow:var(--sh-1);
}
.od-faq .accordion-button{
  background:var(--od-surface);
  color:var(--od-ink);
  font-size:17px;font-weight:600;
  padding:20px 22px;
  box-shadow:none;
  border-radius:var(--r-md);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.od-faq .accordion-button:not(.collapsed){
  color:var(--od-brand-900);
  box-shadow:none;background:var(--od-surface);
  border-left:3px solid var(--od-accent);
  padding-left:19px;
}
.od-faq .accordion-button:focus{box-shadow:0 0 0 3px rgba(192,96,58,.15)}
.od-faq .accordion-button::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--od-accent);
  background-image:none;width:auto;height:auto;
  transition:transform .25s ease;
}
.od-faq .accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.od-faq .accordion-body{
  padding:0 22px 22px;
  font-size:15px;color:var(--od-brand-700);line-height:1.8;
}

/* CTA 带 */
.od-cta{
  background:linear-gradient(135deg,var(--od-brand-900),var(--od-brand-700));
  border-radius:0;
  padding:72px 0;
}
.od-cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.od-cta h2{color:#F6EFE6;margin-bottom:12px;max-width:640px}
.od-cta p{color:rgba(246,239,230,.78);font-size:15.5px}
.od-cta .od-cta-contact{
  color:rgba(246,239,230,.7);font-size:13.5px;margin-top:14px;
}
.od-cta .od-cta-contact i{color:var(--od-champagne);margin-right:6px}

/* 页脚 */
.od-footer{background:var(--od-brand-900);color:#EFE5DA;padding:72px 0 0;font-size:14.5px}
.od-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px}
.od-footer h4{
  color:#F6EFE6;font-size:15px;margin-bottom:18px;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}
.od-footer ul li + li{margin-top:10px}
.od-footer a{color:rgba(239,229,218,.8)}
.od-footer a:hover{color:var(--od-champagne)}
.od-footer-brand .od-logo strong{color:#F6EFE6}
.od-footer-brand .od-logo span{color:rgba(239,229,218,.6)}
.od-footer-brand p{
  color:rgba(239,229,218,.7);font-size:14px;margin:16px 0 20px;max-width:320px;
}
.od-social{display:flex;gap:10px}
.od-social a{
  width:38px;height:38px;border-radius:50%;
  border:1px solid rgba(239,229,218,.22);
  display:flex;align-items:center;justify-content:center;
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.od-social a:hover{background:rgba(201,168,124,.16);border-color:var(--od-champagne);color:var(--od-champagne)}
.od-subscribe{
  display:flex;gap:8px;margin-top:14px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(239,229,218,.18);
  border-radius:var(--r-pill);padding:5px 5px 5px 16px;
}
.od-subscribe input{
  flex:1;min-width:0;background:transparent;border:0;color:#F6EFE6;font-size:13.5px;
}
.od-subscribe input::placeholder{color:rgba(239,229,218,.5)}
.od-subscribe input:focus{outline:none}
.od-subscribe button{
  border:0;border-radius:var(--r-pill);
  background:var(--od-accent);color:#FFF7F1;
  font-size:13.5px;padding:9px 18px;cursor:pointer;
  transition:background .2s ease;
}
.od-subscribe button:hover{background:var(--od-accent-600)}
.od-footer .od-privacy{color:rgba(239,229,218,.5)}
.od-footer-bottom{
  margin-top:56px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:rgba(239,229,218,.6);flex-wrap:wrap;gap:10px;
}

/* 响应式 */
@media(max-width:1199.98px){
  .od-section{padding:72px 0}
  .od-head-grid{gap:32px}
  h1{font-size:38px}
  h2{font-size:28px}
}
@media(max-width:991.98px){
  h1{font-size:34px}
  h2{font-size:26px}
  .od-head-grid{grid-template-columns:1fr;gap:28px}
  .od-head-figure{aspect-ratio:16/9;order:-1}
  .od-std-grid{grid-template-columns:1fr;gap:32px}
  .od-form-wrap{grid-template-columns:1fr;gap:32px}
  .od-footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:767.98px){
  body{font-size:16px}
  h1{font-size:30px}
  h2{font-size:24px}
  h3{font-size:18px}
  .od-section{padding:56px 0}
  .od-cap-grid{grid-template-columns:1fr}
  .od-timeline::before{left:8px;transform:none}
  .od-tl-item,.od-tl-item:nth-child(even){
    width:100%;margin-left:0;padding:0 0 28px 34px;
  }
  .od-tl-dot,.od-tl-item:nth-child(even) .od-tl-dot{left:2px;right:auto;top:24px}
  .od-badges{gap:12px}
  .od-badge-data{flex:1 1 100%}
  .od-form-card{padding:22px}
  .od-form-foot{justify-content:stretch}
  .od-form-foot .od-btn{width:100%}
  .od-cta{padding:56px 0}
  .od-cta-inner{flex-direction:column;align-items:flex-start;gap:24px}
  .od-footer-grid{grid-template-columns:1fr}
  .od-footer{padding-top:52px}
  .od-topbar-left span:nth-child(n+3){display:none}
  .od-topbar-right span{display:none}
}