/* roulang page: index */
:root{
  --bg:#f6f3eb;
  --primary:#1f4e3d;
  --primary-dark:#123028;
  --primary-light:#b6cfbb;
  --accent:#c76f32;
  --accent-light:#f3e0cf;
  --ink:#1b221e;
  --muted:#6f7a73;
  --deep:#10251d;
  --card:#ffffff;
  --border:rgba(31,78,61,.14);
  --shadow:0 10px 30px -18px rgba(18,48,40,.32);
  --radius-lg:20px;
  --radius-md:12px;
  --radius-sm:10px;
  --radius-pill:999px;
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;padding:0;margin:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-main);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:none;background:none;cursor:pointer;color:inherit}
.container{width:100%;max-width:1280px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px}
.section{padding-top:88px;padding-bottom:88px}
.section-sub{padding-top:64px;padding-bottom:64px}
.section-title{font-size:clamp(26px,3.2vw,34px);font-weight:800;line-height:1.3;letter-spacing:.01em}
.section-intro{margin-top:14px;color:var(--muted);max-width:760px;font-size:16px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;border-radius:var(--radius-pill);padding:7px 14px;font-size:13px;font-weight:700;letter-spacing:.04em;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);color:#fff;backdrop-filter:blur(4px)}
.eyebrow-dark{background:var(--primary-light);color:var(--primary-dark);border-color:transparent}

/* 顶部细信息条 */
.top-bar{background:var(--primary);color:#fff;height:36px;display:flex;align-items:center;font-size:13px}
.top-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.top-info{font-weight:500;opacity:.88;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top-links{display:flex;align-items:center;gap:18px;white-space:nowrap}
.top-links a{font-weight:500;opacity:.82}
.top-links a:hover{opacity:1;text-decoration:underline;text-underline-offset:4px}
.top-hint{opacity:.64;font-size:12px}
@media(max-width:560px){.top-hint,.top-links a:nth-child(1){display:none}}

/* 主导航 */
.site-nav{
  position:sticky;top:0;z-index:70;
  background:#fff;
  transition:box-shadow .16s ease,background-color .16s ease;
  border-bottom:1px solid rgba(31,78,61,.08);
}
.site-nav.scrolled{background:rgba(255,255,255,.94);box-shadow:0 10px 28px -18px rgba(18,48,40,.32);border-bottom-color:transparent}
.nav-inner{display:flex;align-items:stretch;gap:22px;height:78px}
.brand-wrap{display:flex;align-items:center;gap:0;flex-shrink:0;max-width:340px}
.brand-mark{
  width:42px;height:42px;border-radius:13px;
  background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 8px 16px -10px rgba(31,78,61,.7);
  flex:0 0 42px;
}
.brand-text{display:flex;flex-direction:column;margin-left:10px;line-height:1.2}
.brand-name{font-weight:800;font-size:20px;letter-spacing:.02em;color:var(--primary-dark);white-space:nowrap}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.05em;margin-top:2px}
.brand-badge{
  margin-left:12px;
  display:flex;flex-direction:column;
  border:1px solid var(--border);
  border-left:3px solid var(--accent);
  border-radius:10px;
  padding:3px 9px 3px 11px;
  background:rgba(182,207,187,.12);
  white-space:nowrap;
}
.brand-badge span{font-size:11px;line-height:1.45;font-weight:700;color:var(--primary-dark)}
.brand-badge span:first-child{color:var(--primary)}
.brand-badge span:last-child{font-weight:500;color:var(--accent)}
.main-nav{display:flex;align-items:center;gap:clamp(12px,1.4vw,26px);margin-left:auto}
.nav-link{
  position:relative;font-size:15px;font-weight:600;color:var(--ink);
  padding:12px 2px;line-height:1;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:100%;bottom:6px;height:2px;
  background:var(--primary);border-radius:2px;transition:right .18s ease;
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after,.nav-link.active::after{right:0}
.nav-link.active{color:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:14px}
.btn-header{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-sm);padding:10px 18px;
  background:var(--primary);color:#fff;font-size:14px;font-weight:700;
  transition:background .15s ease,transform .15s ease,box-shadow .15s ease;
  white-space:nowrap;
}
.btn-header:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 8px 20px -14px rgba(18,48,40,.8)}
.menu-btn{display:none;width:44px;height:44px;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--border);background:#fff;transition:background .15s}
.menu-btn:hover{background:var(--accent-light)}
@media(max-width:1180px){.brand-badge{display:none}}
@media(max-width:1023px){
  .main-nav{display:none}
  .menu-btn{display:inline-flex;margin-left:auto}
}
@media(max-width:640px){
  .nav-inner{height:70px;gap:12px}
  .nav-actions .btn-header{display:none}
  .brand-mark{width:38px;height:38px;flex-basis:38px;border-radius:11px}
  .brand-name{font-size:18px}
  .brand-sub{font-size:10px}
  .menu-btn{margin-left:auto}
}

/* 抽屉导航 */
.backdrop{position:fixed;inset:0;z-index:89;background:rgba(16,37,29,.42);opacity:0;visibility:hidden;transition:opacity .2s,visibility .2s}
.backdrop.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;left:0;bottom:0;z-index:99;
  width:min(340px,88vw);background:#fff;box-shadow:25px 0 40px -30px rgba(0,0,0,.4);
  transform:translateX(-105%);transition:transform .22s ease;
  display:flex;flex-direction:column;overflow-y:auto;
}
.drawer.show{transform:none}
.drawer-head{display:flex;align-items:center;gap:8px;padding:22px 22px 14px;border-bottom:1px solid rgba(31,78,61,.1)}
.drawer-close{margin-left:auto;width:36px;height:36px;border-radius:9px;display:flex;align-items:center;justify-content:center;background:var(--accent-light);color:var(--accent)}
.drawer-close:hover{background:var(--accent);color:#fff}
.drawer-nav{padding:18px 10px;display:flex;flex-direction:column}
.drawer-nav a{padding:13px 16px;border-radius:10px;font-weight:600;color:var(--ink);font-size:16px;transition:background .15s;border-bottom:1px solid rgba(31,78,61,.05)}
.drawer-nav a:last-child{border-bottom:none}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--accent-light);color:var(--primary)}
.drawer-keyword{padding:14px 22px 20px;font-size:13px;color:var(--muted);background:rgba(243,224,207,.35);border-top:1px dashed rgba(199,111,50,.3)}
.drawer-keyword b{color:var(--accent);font-weight:700}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  border-radius:11px;padding:13px 26px;min-height:48px;
  font-size:15px;font-weight:700;transition:all .16s ease;line-height:1;border:1px solid transparent;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 14px 24px -15px rgba(199,111,50,.85)}
.btn-primary:hover{background:#b25c28;transform:translateY(-2px);box-shadow:0 18px 32px -18px rgba(199,111,50,.9)}
.btn-primary:focus-visible,.btn-ghost:focus-visible{outline:3px solid rgba(182,207,187,.9);outline-offset:3px}
.btn-ghost{border-color:rgba(255,255,255,.75);color:#fff;background:rgba(255,255,255,.08)}
.btn-ghost:hover{background:#fff;color:var(--primary-dark);transform:translateY(-2px)}
.btn-dark{background:var(--primary);color:#fff}
.btn-dark:hover{background:var(--primary-dark);transform:translateY(-2px)}
.btn-outline{border:1px solid var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--primary);color:#fff}

/* hero */
.hero{
  position:relative;min-height:640px;height:82vh;max-height:1000px;
  background:url('/assets/images/backpic/back-1.png') center center/cover no-repeat;
  display:flex;align-items:center;isolation:isolate;overflow:hidden;
}
.hero-overlay{
  position:absolute;inset:0;z-index:-1;
  background:linear-gradient(100deg,rgba(16,37,29,.88) 0%,rgba(16,37,29,.62) 44%,rgba(31,78,61,.24) 100%);
}
.hero-inner{padding-top:80px;padding-bottom:70px}
.hero-copy{max-width:700px}
.hero h1{font-size:clamp(36px,6vw,68px);line-height:1.15;color:#fff;font-weight:800;letter-spacing:.015em;margin-top:28px}
.hero h1 .hl{color:#f7e1c8}
.hero-sub{font-size:clamp(16px,1.2vw,19px);margin-top:22px;color:rgba(255,255,255,.93);max-width:560px;line-height:1.8}
.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero-stat{display:flex;flex-wrap:wrap;gap:0;margin-top:54px;color:#fff;border-top:1px solid rgba(255,255,255,.2);padding-top:24px;max-width:600px}
.stat-item{margin-right:36px}
.stat-value{font-size:28px;font-weight:800;display:block;line-height:1.1}
.stat-label{font-size:13px;opacity:.75;margin-top:4px}
@media(max-width:640px){
  .hero{min-height:660px;height:auto}
  .hero h1{font-size:31px;line-height:1.22}
  .hero-stat{margin-top:38px}
  .stat-item{margin-right:22px}
  .stat-value{font-size:22px}
}

/* 合集目录 */
.collection-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:stretch;margin-top:46px}
.collection-cover{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:460px;box-shadow:var(--shadow)}
.collection-cover img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;transition:transform .25s ease}
.collection-cover:hover img{transform:scale(1.04)}
.collection-cover .cover-tag{position:absolute;left:20px;bottom:20px;z-index:2;background:rgba(16,37,29,.55);color:#fff;border-radius:999px;padding:7px 16px;font-size:14px;backdrop-filter:blur(4px)}
.collection-list{display:flex;flex-direction:column;gap:14px}
.coll-item{
  display:flex;align-items:end;gap:18px;background:#fff;border:1px solid var(--border);
  border-radius:16px;padding:18px 22px;transition:transform .16s,box-shadow .16s;box-shadow:0 6px 18px -18px rgba(18,48,40,.3);
}
.coll-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.coll-num{font-family:ui-monospace,monospace;font-size:22px;color:var(--primary-light);font-weight:700;line-height:1}
.coll-content{flex:1;min-width:0}
.coll-content h3{font-size:17px;font-weight:800;color:var(--primary-dark)}
.coll-content p{font-size:14px;color:var(--muted);margin-top:4px;line-height:1.65}
.coll-arrow{display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;flex:0 0 34px;background:var(--accent-light);color:var(--accent);transition:background .15s,color .15s,transform .15s}
.coll-item:hover .coll-arrow{background:var(--accent);color:#fff;transform:translateX(3px)}
@media(max-width:980px){.collection-wrap{grid-template-columns:1fr}.collection-cover{min-height:320px}}
@media(max-width:520px){.collection-cover{min-height:220px}.coll-item{padding:15px 16px}}

/* 精选条目 featured */
.feature-intro{display:flex;justify-content:space-between;align-items:flex-end;gap:22px;flex-wrap:wrap}
.feature-grid{margin-top:42px;display:grid;grid-template-columns:1.25fr .75fr;gap:24px}
.feature-main{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:380px;display:flex;align-items:flex-end;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.feature-main::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 0%,rgba(16,37,29,.65) 54%,rgba(16,37,29,.9) 100%)}
.feature-content{position:relative;padding:34px;color:#fff;max-width:520px}
.feature-tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.06em;font-weight:700;color:#f3e0cf;background:rgba(199,111,50,.35);border-radius:999px;padding:5px 13px}
.feature-content h3{font-size:23px;font-weight:800;line-height:1.45;margin-top:14px}
.feature-content p{font-size:15px;color:rgba(255,255,255,.86);margin-top:12px}
.feature-link{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:14px;margin-top:22px;color:#fff;border-bottom:1px solid rgba(255,255,255,.5);padding-bottom:4px}
.feature-link:hover{color:var(--primary-light)}
.feature-side{display:flex;flex-direction:column;gap:24px}
.feature-card{background:#fff;border-radius:18px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);display:flex;flex-direction:column;transition:transform .16s}
.feature-card:hover{transform:translateY(-4px)}
.feature-card img{width:100%;height:158px;object-fit:cover}
.feature-card-body{padding:20px 22px}
.feature-card-body .date-text{font-size:12px;color:var(--muted)}
.feature-card-body h4{font-size:17px;font-weight:800;margin-top:6px;line-height:1.5}
.feature-card-body p{font-size:13px;color:var(--muted);margin-top:8px;line-height:1.7}
@media(max-width:1000px){.feature-grid{grid-template-columns:1fr}.feature-main{min-height:330px}}
@media(max-width:520px){.feature-main{min-height:280px}.feature-content{padding:22px 18px}.feature-content h3{font-size:19px}}

/* 资讯 / CMS 区块 */
.news-band{background:var(--deep);color:#fff}
.news-band .section-title{color:#fff}
.news-band .section-intro{color:rgba(255,255,255,.74)}
.news-section-top{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap}
.news-head-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--primary-light)}
.news-head-link:hover{color:#fff}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}
.post-card{
  background:#fff;color:var(--ink);border-radius:18px;box-shadow:var(--shadow);
  width:100%;padding:25px 23px;border:1px solid rgba(255,255,255,.1);
  display:flex;flex-direction:column;min-height:230px;position:relative;overflow:hidden;
  transition:transform .16s,box-shadow .16s;
}
.post-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--accent);opacity:.9}
.post-card:hover{transform:translateY(-5px);box-shadow:0 20px 44px -22px rgba(0,0,0,.55)}
.post-meta{display:flex;align-items:center;flex-wrap:wrap;gap:8px}
.post-cat{display:inline-flex;border-radius:999px;background:var(--accent-light);color:var(--accent);font-size:12px;font-weight:700;padding:4px 11px}
.post-date{font-size:12px;color:var(--muted)}
.post-card h3{font-size:18px;font-weight:800;line-height:1.5;color:var(--ink);margin-top:18px}
.post-card p{font-size:14px;color:var(--muted);line-height:1.7;margin-top:10px;flex:1}
.post-card a.post-link{align-self:flex-start;margin-top:16px;font-size:14px;font-weight:700;color:var(--primary)}
.post-card a.post-link:hover{color:var(--accent)}
.news-list-panel{margin-top:24px;background:rgba(255,255,255,.05);border-radius:16px;border:1px solid rgba(255,255,255,.1)}
.news-row{display:flex;align-items:center;gap:18px;padding:16px 20px;border-bottom:1px solid rgba(255,255,255,.07)}
.news-row:last-child{border-bottom:none}
.news-row .news-date{font-size:12px;color:rgba(255,255,255,.62);font-family:ui-monospace,monospace;white-space:nowrap}
.news-row .news-tag{color:var(--primary-light);font-size:12px;background:rgba(182,207,187,.13);padding:3px 9px;border-radius:999px}
.news-row a.row-title{font-weight:700;color:#fff;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-row a.row-title:hover{color:var(--primary-light)}
.empty-box{
  border:2px dashed rgba(255,255,255,.28);border-radius:18px;padding:48px 24px;text-align:center;color:rgba(255,255,255,.68);font-size:14px;margin-top:36px;
}
@media(max-width:1023px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.news-grid{grid-template-columns:1fr}.news-row{flex-wrap:wrap;gap:8px}}

/* 横向推荐 */
.rel-scroll{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:36px}
.rel-card{background:#fff;border:1px solid var(--border);border-radius:16px;overflow:hidden;box-shadow:0 6px 16px -16px rgba(18,48,40,.3);transition:transform .16s,box-shadow .16s}
.rel-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.rel-card img{width:100%;height:136px;object-fit:cover}
.rel-body{padding:18px 18px 20px}
.rel-body span{font-size:12px;color:var(--accent);font-weight:700}
.rel-body h4{font-size:16px;font-weight:800;line-height:1.5;margin-top:6px;color:var(--primary-dark)}
.rel-body p{font-size:13px;color:var(--muted);margin-top:8px;line-height:1.6}
.rel-body a.rel-go{display:inline-block;margin-top:14px;font-size:13px;font-weight:700;color:var(--primary)}
.rel-body a.rel-go:hover{color:var(--accent)}
@media(max-width:1000px){.rel-scroll{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.rel-scroll{grid-template-columns:1fr}}

/* FAQ */
.faq-section{background:var(--bg)}
.faq-wrap{max-width:900px;margin:44px auto 0;display:flex;flex-direction:column;gap:14px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:16px;overflow:hidden;transition:box-shadow .16s}
.faq-item[open]{box-shadow:var(--shadow)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 26px;font-size:16px;font-weight:800;color:var(--primary-dark);
  display:flex;align-items:center;justify-content:space-between;gap:18px;user-select:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:25px;color:var(--accent);line-height:1;transition:transform .2s;flex:0 0 auto;font-weight:400;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:hover{background:rgba(243,224,207,.25)}
.faq-body{padding:0 26px 24px;color:var(--muted);line-height:1.8;font-size:15px;border-top:1px dashed rgba(31,78,61,.1);margin:0 0 0 0}
.faq-body p{margin-top:18px;max-width:820px}

/* cta 收藏区 */
.cta-band{background:var(--primary);color:#fff;padding:66px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap}
.cta-copy{max-width:640px}
.cta-copy h2{font-size:clamp(26px,3vw,38px);font-weight:800;line-height:1.3}
.cta-copy p{color:rgba(255,255,255,.82);margin-top:12px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.action-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;
  padding:13px 20px;background:rgba(255,255,255,.1);color:#fff;font-size:14px;font-weight:700;
  border:1px solid rgba(255,255,255,.3);transition:background .15s,transform .15s;
}
.action-btn:hover{background:#fff;color:var(--primary-dark);transform:translateY(-2px)}
.action-btn.pin{background:var(--accent);border-color:var(--accent)}
.action-btn.pin:hover{background:#b35e2a;color:#fff;border-color:#b35e2a}
.share-hint{flex-basis:100%;font-size:12px;color:rgba(255,255,255,.6);margin-top:6px}
@media(max-width:800px){.cta-inner{flex-direction:column;align-items:flex-start}.cta-actions{width:100%}}

/* 返回顶部 */
.to-top{position:fixed;right:22px;bottom:22px;z-index:65;width:46px;height:46px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 16px 28px -18px rgba(18,48,40,.9);opacity:0;visibility:hidden;transition:opacity .18s,visibility .18s,transform .18s}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--accent);transform:translateY(-3px)}

/* footer */
footer.site-footer{background:var(--deep);color:#fff;padding-top:76px;margin-top:0}
.footer-top{display:grid;grid-template-columns:1.2fr .8fr .9fr 0.8fr;gap:36px;padding-bottom:42px;border-bottom:1px solid rgba(255,255,255,.09)}
.footer-brand .brand-inline{display:flex;align-items:center;gap:9px}
.footer-brand p{color:rgba(255,255,255,.67);font-size:14px;line-height:1.8;margin-top:18px;max-width:360px}
.footer-brand .foot-tag{display:inline-flex;border-radius:999px;background:rgba(199,111,50,.22);border:1px solid rgba(199,111,50,.5);color:#f3e0cf;padding:5px 12px;font-size:12px;margin-top:16px}
.site-footer h4{font-size:15px;font-weight:800;letter-spacing:.02em;margin-bottom:16px}
.footer-list{display:flex;flex-direction:column;gap:11px;list-style:none}
.footer-list a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-list a:hover{color:#fff}
.footer-contact div{font-size:14px;color:rgba(255,255,255,.66);margin-bottom:12px;line-height:1.7}
.footer-bottom{padding:22px 0 26px;text-align:center;color:rgba(255,255,255,.5);font-size:13px}
.footer-bottom a{color:rgba(255,255,255,.75)}
.footer-bottom a:hover{color:#fff}
@media(max-width:1023px){.footer-top{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.footer-top{grid-template-columns:1fr}}

/* 通用图片和卡片 hover */
.has-shadow{box-shadow:var(--shadow)}
.rounded-item{border-radius:var(--radius-lg);overflow:hidden}
img{will-change:transform}
.section-gap-bottom{margin-bottom:70px}

/* 键盘态和 reduced motion */
a:focus-visible,button:focus-visible{outline:3px solid rgba(31,78,61,.45);outline-offset:3px;border-radius:6px}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .collection-cover img,.feature-card img{transition:none}
}

/* roulang page: category1 */
:root {
        --page-bg: #f6f3eb;
        --primary: #1f4e3d;
        --primary-deep: #123028;
        --primary-soft: #b6cfbb;
        --accent: #c76f32;
        --accent-soft: #f3e0cf;
        --text: #1b221e;
        --muted: #6f7a73;
        --surface: #ffffff;
        --border: rgba(31, 78, 61, .14);
        --dark-section: #10251d;
        --radius: 18px;
        --radius-sm: 9px;
        --shadow-sm: 0 10px 30px -18px rgba(18, 48, 40, .25);
        --font-cn: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    * {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: var(--font-cn);
        background: var(--page-bg);
        color: var(--text);
        font-size: 16px;
        line-height: 1.75;
        -webkit-font-smoothing: antialiased;
    }
    body.no-scroll {
        overflow: hidden;
    }
    img {
        max-width: 100%;
        display: block;
    }
    a {
        color: inherit;
        text-decoration: none;
    }
    button {
        font-family: inherit;
        cursor: pointer;
    }
    input,
    textarea {
        font-family: inherit;
    }
    .site-container {
        max-width: 1280px;
        margin-left: auto;
        margin-right: auto;
        padding-left: 24px;
        padding-right: 24px;
        width: 100%;
    }
    .backdrop-fade {
        position: fixed;
        inset: 0;
        z-index: 49;
        background: rgba(16, 26, 21, .5);
        opacity: 0;
        visibility: hidden;
        transition: opacity .22s ease, visibility .22s ease;
    }
    .backdrop-fade.show {
        opacity: 1;
        visibility: visible;
    }
    .topbar {
        background: var(--primary);
        color: #fff;
        font-size: 13px;
    }
    .topbar-inner {
        min-height: 36px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 18px;
    }
    .topbar-a {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: rgba(255, 255, 255, .9);
    }
    .topbar-r {
        display: inline-flex;
        align-items: center;
        gap: 16px;
    }
    .topbar-link {
        opacity: .86;
        transition: opacity .18s ease;
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .topbar-link:hover {
        opacity: 1;
        color: var(--accent-soft);
    }
    .header-wrap {
        background: rgba(255, 255, 255, .88);
        border-bottom: 1px solid rgba(31, 78, 61, .08);
        position: sticky;
        top: 0;
        z-index: 50;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }
    .header-inner {
        min-height: 76px;
        display: flex;
        align-items: center;
    }
    .logo-group {
        display: flex;
        align-items: center;
        gap: 8px;
        margin-right: 20px;
        flex-shrink: 1;
        min-width: 0;
    }
    .brand-logo {
        width: 40px;
        height: 40px;
        border-radius: 12px;
        background: var(--primary);
        color: #fff;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }
    .logo-text {
        font-size: 19px;
        font-weight: 800;
        letter-spacing: .02em;
        color: var(--primary-deep);
        white-space: nowrap;
        line-height: 1.2;
    }
    .logo-slug {
        display: inline-flex;
        align-items: center;
        height: 24px;
        padding: 0 10px;
        margin-left: 6px;
        border-radius: 999px;
        font-size: 11px;
        font-weight: 600;
        color: var(--primary-deep);
        background: var(--primary-soft);
        letter-spacing: .02em;
        white-space: nowrap;
        border: 1px solid rgba(31, 78, 61, .16);
    }
    .main-nav {
        display: flex;
        align-items: center;
        gap: 2px;
        margin: 0 22px;
    }
    .nav-link {
        display: inline-block;
        font-size: 15px;
        font-weight: 500;
        color: #44514a;
        line-height: 76px;
        padding: 0 12px;
        position: relative;
        transition: color .16s ease, opacity .16s ease;
        white-space: nowrap;
    }
    .nav-link::after {
        content: "";
        position: absolute;
        left: 12px;
        right: 12px;
        bottom: 0;
        height: 2px;
        border-radius: 8px 8px 0 0;
        background: var(--primary);
        transform: scaleX(.4);
        transform-origin: left center;
        opacity: 0;
        transition: transform .16s ease, opacity .16s ease;
    }
    .nav-link:hover,
    .nav-link.active {
        color: var(--primary);
        opacity: 1;
    }
    .nav-link:hover::after,
    .nav-link.active::after {
        opacity: 1;
        transform: scaleX(1);
    }
    .nav-link.active {
        font-weight: 700;
        color: var(--primary);
    }
    .header-action {
        margin-left: auto;
        display: flex;
        align-items: center;
        gap: 8px;
        flex-shrink: 0;
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        border-radius: var(--radius-sm);
        font-size: 15px;
        font-weight: 600;
        line-height: 1;
        height: 46px;
        padding: 0 22px;
        border: 1px solid transparent;
        transition: background-color .16s ease, border-color .16s ease, color .16s ease, transform .16s ease, box-shadow .16s ease;
        cursor: pointer;
    }
    .btn-outline {
        border-color: rgba(31, 78, 61, .4);
        color: var(--primary);
        background: transparent;
    }
    .btn-outline:hover {
        background: var(--primary);
        color: #fff;
        border-color: var(--primary);
    }
    .btn-accent {
        background: var(--accent);
        border-color: var(--accent);
        color: white;
    }
    .btn-accent:hover {
        background: #b35c24;
        border-color: #b35c24;
        box-shadow: 0 12px 24px -12px rgba(199, 111, 50, .55);
        transform: translateY(-2px);
    }
    .btn-light {
        background: #fff;
        color: var(--primary-deep);
        border-color: #fff;
    }
    .btn-light:hover {
        background: var(--accent-soft);
        border-color: var(--accent-soft);
        transform: translateY(-2px);
    }
    .header-ghost {
        border-color: rgba(255, 255, 255, .6);
        color: #fff;
        background: transparent;
    }
    .header-ghost:hover {
        background: #fff;
        color: var(--primary);
        border-color: #fff;
        transform: translateY(-2px);
    }
    .icon-dot {
        width: 6px;
        height: 6px;
        border-radius: 999px;
        background: var(--accent);
        display: inline-block;
        margin-right: 4px;
    }
    .eyebrow {
        display: inline-flex;
        align-items: center;
        color: var(--primary);
        font-size: 13px;
        font-weight: 700;
        letter-spacing: .1em;
        text-transform: uppercase;
        gap: 8px;
    }
    .eyebrow-line {
        width: 30px;
        height: 2px;
        background: var(--accent);
        border-radius: 9px;
        display: inline-block;
    }
    .category-hero {
        min-height: 360px;
        position: relative;
        display: flex;
        align-items: center;
        overflow: hidden;
        padding: 72px 0;
    }
    .category-hero-bg {
        position: absolute;
        inset: 0;
        z-index: 0;
        background-image: url('/assets/images/backpic/back-2.webp');
        background-position: 78% center;
        background-size: cover;
    }
    .category-hero-bg::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(104deg, rgba(15, 36, 28, .93) 18%, rgba(31, 78, 61, .68) 56%, rgba(15, 36, 28, .2) 100%);
    }
    .hero-content {
        position: relative;
        z-index: 2;
        max-width: 720px;
        color: #fff;
    }
    .hero-kicker {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 13px;
        padding: 6px 14px;
        border-radius: 999px;
        background: rgba(255, 255, 255, .12);
        color: #e8f0e8;
        border: 1px solid rgba(255, 255, 255, .22);
        letter-spacing: .05em;
        margin-bottom: 18px;
    }
    .hero-title {
        font-size: clamp(36px, 5.2vw, 60px);
        line-height: 1.18;
        font-weight: 800;
        letter-spacing: .01em;
        margin: 4px 0 16px;
    }
    .hero-title .hl {
        color: #f6d9bd;
    }
    .hero-sub {
        font-size: 16px;
        line-height: 1.9;
        color: rgba(255, 255, 255, .82);
        max-width: 610px;
    }
    .hero-actions {
        margin-top: 28px;
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
    }
    .section {
        padding: 88px 0;
    }
    .section-alt {
        background: #f1ece2;
    }
    .section-title-wrap {
        margin-bottom: 42px;
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 28px;
        flex-wrap: wrap;
    }
    .section-title {
        font-size: clamp(26px, 2.8vw, 34px);
        font-weight: 800;
        color: var(--primary-deep);
        line-height: 1.3;
        letter-spacing: .01em;
    }
    .section-sub {
        color: var(--muted);
        font-size: 15px;
        max-width: 560px;
        margin-top: 10px;
    }
    .num-action {
        font-size: 14px;
        color: var(--muted);
        display: inline-flex;
        gap: 6px;
        align-items: center;
        white-space: nowrap;
    }
    .num-action strong {
        color: var(--primary);
        font-weight: 700;
    }
    .collection-grid {
        display: grid;
        grid-template-columns: .92fr 1.08fr;
        gap: 24px;
        align-items: stretch;
    }
    .collection-lead {
        border-radius: var(--radius);
        overflow: hidden;
        position: relative;
        min-height: 340px;
        box-shadow: var(--shadow-sm);
    }
    .collection-lead img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        position: absolute;
        inset: 0;
    }
    .collection-lead-content {
        position: absolute;
        left: 0;
        right: 0;
        bottom: 0;
        padding: 120px 26px 24px;
        background: linear-gradient(to top, rgba(15, 34, 26, .9) 8%, rgba(15, 34, 26, 0) 100%);
        color: white;
    }
    .collection-lead-content h3 {
        font-size: 21px;
        font-weight: 700;
    }
    .collection-lead-content p {
        font-size: 14px;
        margin-top: 4px;
        color: rgba(255, 255, 255, .76);
    }
    .collection-list {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .collection-entry {
        display: flex;
        align-items: center;
        gap: 18px;
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 16px;
        padding: 18px 20px;
        transition: transform .16s ease, box-shadow .16s ease;
        color: var(--text);
    }
    .collection-entry:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-sm);
        border-color: rgba(31, 78, 61, .2);
    }
    .entry-index {
        font-size: 24px;
        font-weight: 800;
        color: var(--primary-soft);
        line-height: 1.2;
        min-width: 38px;
    }
    .entry-info {
        flex: 1;
        min-width: 0;
    }
    .entry-info h4 {
        font-size: 16px;
        font-weight: 700;
        color: var(--text);
        margin-bottom: 2px;
    }
    .entry-info p {
        font-size: 13px;
        color: var(--muted);
    }
    .entry-arrow {
        color: var(--accent);
        font-size: 18px;
        transition: transform .18s ease;
        flex-shrink: 0;
    }
    .collection-entry:hover .entry-arrow {
        transform: translateX(4px);
    }
    .twoby-content {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 30px 24px;
    }
    .guide-image-card {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        overflow: hidden;
        transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
    }
    .guide-image-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-sm);
        border-color: rgba(31, 78, 61, .24);
    }
    .guide-image-top {
        height: 212px;
        overflow: hidden;
        position: relative;
    }
    .guide-image-card img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .16s ease;
    }
    .guide-image-card:hover img {
        transform: scale(1.03);
    }
    .guide-image-body {
        padding: 20px 22px 24px;
    }
    .mark-chip {
        display: inline-block;
        background: var(--accent-soft);
        color: var(--accent);
        font-size: 12px;
        font-weight: 700;
        padding: 3px 11px;
        border-radius: 999px;
        margin-bottom: 10px;
    }
    .guide-image-body h3 {
        font-size: 19px;
        font-weight: 700;
        color: var(--primary-deep);
        margin-bottom: 8px;
    }
    .guide-image-body p {
        font-size: 14px;
        line-height: 1.8;
        color: var(--muted);
    }
    .tag-list {
        margin-top: 14px;
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    .tag {
        display: inline-flex;
        border-radius: 999px;
        background: #f2f0e8;
        color: #54615a;
        font-size: 12px;
        padding: 4px 11px;
        border: 1px solid rgba(31, 78, 61, .06);
    }
    .cards-row {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 24px;
    }
    .data-strip {
        background: var(--primary-deep);
        border-radius: 24px;
        color: #fff;
        padding: 34px;
        overflow: hidden;
        position: relative;
    }
    .data-strip::after {
        content: "";
        position: absolute;
        right: -50px;
        bottom: -80px;
        width: 190px;
        height: 190px;
        border-radius: 999px;
        background: radial-gradient(circle, rgba(182, 207, 187, .28) 0%, transparent 70%);
    }
    .step-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
        position: relative;
        z-index: 1;
    }
    .step-item {
        background: rgba(255, 255, 255, .07);
        border: 1px solid rgba(255, 255, 255, .16);
        border-radius: 16px;
        padding: 22px 18px;
        transition: background-color .18s ease, transform .18s ease;
    }
    .step-item:hover {
        background: rgba(255, 255, 255, .12);
        transform: translateY(-3px);
    }
    .step-num {
        font-size: 22px;
        font-weight: 800;
        color: #f6d5b8;
        line-height: 1.2;
    }
    .step-item h4 {
        margin: 10px 0 6px;
        font-size: 16px;
        font-weight: 700;
    }
    .step-item p {
        font-size: 13px;
        color: rgba(255, 255, 255, .64);
    }
    .faq-wrap {
        max-width: 900px;
        margin: 0 auto;
    }
    .faq-item {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 14px;
        margin-bottom: 1px;
        overflow: hidden;
        transition: box-shadow .18s ease;
    }
    .faq-item:not(:last-child) {
        margin-bottom: 12px;
    }
    .faq-item.open {
        box-shadow: var(--shadow-sm);
        border-color: rgba(31, 78, 61, .2);
    }
    .faq-summary {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 20px;
        padding: 17px 20px;
        cursor: pointer;
        font-size: 15px;
        font-weight: 600;
        color: var(--text);
        background-color: transparent;
    }
    .faq-summary .faq-control {
        width: 26px;
        height: 26px;
        flex: 0 0 26px;
        border-radius: 999px;
        background: var(--primary-soft);
        color: var(--primary-deep);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        transition: transform .16s ease, background-color .16s ease;
    }
    .faq-item.open .faq-control {
        transform: rotate(45deg);
        background: var(--accent);
        color: #fff;
    }
    .faq-item body {
        display: none;
        padding: 0 20px 20px;
    }
    .faq-item.faq-open .faq-item-body {
        display: block;
    }
    .faq-item-body {
        display: none;
        padding: 0 66px 20px 20px;
        font-size: 14px;
        color: var(--muted);
        border-top: 1px dashed rgba(31, 78, 61, .14);
        margin-top: 2px;
        padding-top: 12px;
        line-height: 1.8;
    }
    .faq-item.faq-open .faq-item-body {
        display: block;
    }
    .cta-band {
        background: linear-gradient(104deg, var(--primary-deep), #1f4e3d);
        color: #fff;
        border-radius: 24px;
        position: relative;
        overflow: hidden;
        padding: 46px 40px;
    }
    .cta-band::after {
        content: "";
        position: absolute;
        right: -80px;
        top: -100px;
        width: 220px;
        height: 220px;
        border-radius: 999px;
        border: 30px solid rgba(255, 255, 255, .07);
    }
    .cta-band h2 {
        font-size: clamp(24px, 2.6vw, 32px);
        font-weight: 800;
        line-height: 1.4;
    }
    .cta-band p {
        color: rgba(255, 255, 255, .74);
        margin-top: 8px;
        max-width: 580px;
    }
    .cta-actions {
        margin-top: 24px;
        display: flex;
        gap: 12px;
        flex-wrap: wrap;
    }
    .site-footer {
        background: var(--dark-section);
        color: rgba(255, 255, 255, .84);
        padding-top: 58px;
        margin-top: 0;
    }
    .footer-top {
        display: grid;
        grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
        gap: 38px;
        padding-bottom: 44px;
    }
    .brand-inline {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 19px;
        font-weight: 800;
        color: #fff;
    }
    .footer-brand p {
        font-size: 13px;
        line-height: 1.9;
        margin-top: 14px;
        color: rgba(255, 255, 255, .58);
    }
    .foot-tag {
        display: inline-flex;
        margin-top: 15px;
        background: rgba(182, 207, 187, .14);
        color: #d9eee0;
        padding: 6px 14px;
        font-size: 12px;
        border-radius: 999px;
        border: 1px solid rgba(182, 207, 187, .2);
    }
    .site-footer h4 {
        font-size: 16px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 16px;
    }
    .footer-list {
        list-style: none;
        display: grid;
        gap: 10px;
        font-size: 14px;
    }
    .footer-list a {
        color: rgba(255, 255, 255, .58);
        transition: color .16s ease;
    }
    .footer-list a:hover {
        color: #f6ceac;
    }
    .footer-contact {
        font-size: 13px;
        line-height: 1.8;
        color: rgba(255, 255, 255, .58);
        display: grid;
        gap: 13px;
    }
    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, .12);
        padding: 24px 0;
        background: rgba(0, 0, 0, .12);
    }
    .footer-bottom p {
        font-size: 13px;
        color: rgba(255, 255, 255, .62);
        text-align: center;
    }
    .footer-bottom a {
        color: rgba(255, 255, 255, .72);
    }
    .footer-bottom a:hover {
        color: var(--accent-soft);
    }
    .back-to-top {
        position: fixed;
        right: 18px;
        bottom: 18px;
        z-index: 30;
        width: 44px;
        height: 44px;
        border-radius: 14px;
        background: var(--primary);
        color: white;
        border: none;
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        visibility: hidden;
        transition: opacity .16s ease, transform .16s ease, visibility .16s;
        box-shadow: 0 10px 24px -12px rgba(15, 36, 28, .7);
    }
    .back-to-top.show {
        opacity: 1;
        visibility: visible;
    }
    .back-to-top:hover {
        background: var(--accent);
        transform: translateY(-2px);
    }
    .nav-drawer {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: min(78vw, 310px);
        z-index: 60;
        background: #fff;
        transform: translateX(-107%);
        transition: transform .24s ease;
        box-shadow: 16px 0 40px -30px rgba(0, 0, 0, .6);
        display: flex;
        flex-direction: column;
        border-radius: 0 18px 18px 0;
        padding: 28px 20px;
    }
    .nav-drawer.open {
        transform: translateX(0);
    }
    .drawer-close {
        align-self: flex-end;
        background: var(--primary-soft);
        color: var(--primary-deep);
        width: 38px;
        height: 38px;
        border-radius: 10px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border: 0;
        font-size: 18px;
    }
    .drawer-logo {
        display: flex;
        gap: 12px;
        align-items: center;
        margin-top: 12px;
        font-weight: 800;
        color: var(--primary-deep);
    }
    .drawer-nav {
        display: grid;
        gap: 4px;
        padding: 24px 0 16px;
    }
    .drawer-nav a {
        padding: 12px 10px;
        border-radius: 9px;
        color: #34453c;
        font-weight: 600;
        font-size: 16px;
        transition: background .16s, color .16s;
    }
    .drawer-nav a:hover,
    .drawer-nav a.active {
        background: var(--primary-soft);
        color: var(--primary-deep);
    }
    .eyebrow-outline {
        width: 40px;
        height: 1.5px;
        background: var(--accent);
        border-radius: 9px;
    }
    #menuToggle {
        display: none;
        width: 44px;
        height: 44px;
        border: 0;
        background: transparent;
        color: var(--primary-deep);
        border-radius: 10px;
        align-items: center;
        justify-content: center;
        transition: background-color .16s;
    }
    #menuToggle:hover {
        background: var(--primary-soft);
    }
    @media (max-width: 1023px) {
        .main-nav {
            display: none;
        }
        .header-action .btn-outline {
            display: none;
        }
        #menuToggle {
            display: inline-flex;
        }
        .footer-top {
            grid-template-columns: 1fr 1fr;
        }
    }
    @media (max-width: 767px) {
        .site-container {
            padding-left: 18px;
            padding-right: 18px;
        }
        .category-hero {
            padding: 48px 0;
            min-height: 430px;
        }
        .hero-title {
            font-size: clamp(30px, 7vw, 42px);
        }
        .section {
            padding: 56px 0;
        }
        .collection-grid,
        .cards-row,
        .twoby-content {
            grid-template-columns: 1fr;
        }
        .step-grid {
            grid-template-columns: 1fr 1fr;
        }
        .cta-band {
            padding: 34px 22px;
        }
        .footer-top {
            grid-template-columns: 1fr;
            gap: 30px;
        }
        .topbar-a {
            font-size: 12px;
        }
        .topbar-r {
            gap: 8px;
        }
        .section-title-wrap {
            margin-bottom: 28px;
        }
        .split-card {
            grid-template-columns: 1fr;
        }
    }
    @media (max-width: 500px) {
        .logo-text {
            font-size: 16px;
        }
        .logo-slug {
            font-size: 9px;
            padding: 0 7px;
            height: 20px;
        }
        .brand-logo {
            width: 34px;
            height: 34px;
            border-radius: 10px;
        }
        .header-inner {
            min-height: 66px;
        }
        .topbar-link {
            font-size: 11px;
        }
        .topbar .site-domain {
            display: none;
        }
        .step-grid {
            grid-template-columns: 1fr;
        }
        .footer-top {
            padding-bottom: 26px;
        }
    }
    .section-number {
        font-size: 13px;
        font-weight: 700;
        color: var(--primary);
        background: var(--primary-soft);
        display: inline-flex;
        width: 28px;
        height: 28px;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        margin-right: 8px;
    }
    .text-blue-not-use {
        color: inherit;
    }
    a:focus-visible,
    button:focus-visible {
        outline: 3px solid rgba(199, 111, 50, .55);
        outline-offset: 2px;
    }
    @media (prefers-reduced-motion: reduce) {
        *,
        *::before,
        *::after {
            scroll-behavior: auto !important;
            transition: none !important;
            animation: none !important;
        }
    }

/* roulang page: article */
:root {
  --bg: #f6f3eb;
  --primary: #1f4e3d;
  --primary-dark: #123028;
  --primary-soft: #b6cfbb;
  --accent: #c76f32;
  --accent-soft: #f3e0cf;
  --text: #1b221e;
  --muted: #6f7a73;
  --deep: #10251d;
  --paper: rgba(255, 255, 255, .9);
  --border: rgba(31, 78, 61, .14);
  --line: rgba(18, 48, 40, .12);
  --radius: 18px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 10px 30px -18px rgba(18, 48, 40, .25);
  --shadow-hover: 0 18px 38px -20px rgba(18, 48, 40, .32);
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; border: 0; cursor: pointer; background: none; }
input, textarea, select { font-family: inherit; }
h1, h2, h3, h4, h5 {
  margin: 0;
  color: var(--primary-dark);
  font-weight: 800;
  line-height: 1.3;
}
p { margin: 0; }
ul, ol { margin: 0; padding: 0; }
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 28px;
  padding-right: 28px;
}
:focus-visible {
  outline: 3px solid rgba(199, 111, 50, .38);
  outline-offset: 2px;
  border-radius: 6px;
}

/* 顶部信息条 */
.site-topbar {
  background: var(--primary);
  color: rgba(255,255,255,.94);
  font-size: 13px;
  letter-spacing: .02em;
}
.topbar-inner {
  min-height: 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.topbar-domain { white-space: nowrap; }
.topbar-meta {
  display: flex;
  align-items: center;
  gap: 18px;
  white-space: nowrap;
}
.topbar-keyword {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: #fff;
  opacity: .92;
  font-size: 12.5px;
}
.topbar-keyword::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
  flex: 0 0 auto;
}
.topbar-meta a {
  color: rgba(255,255,255,.82);
  transition: color .16s ease;
}
.topbar-meta a:hover { color: #fff; }
.topbar-meta .topbar-split { opacity: .32; font-size: 12px; }
@media (max-width: 640px) {
  .topbar-domain { font-size: 12px; }
  .topbar-keyword { display: none; }
}

/* 主导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(246, 243, 235, .85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-wrap {
  min-height: 78px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.brand-group {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex: 0 0 auto;
}
.brand-link {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--primary-dark);
  font-weight: 800;
  font-size: 21px;
  letter-spacing: .01em;
  white-space: nowrap;
}
.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 14px -8px rgba(18, 48, 40, .42);
  flex: 0 0 auto;
}
.brand-pill {
  display: inline-flex;
  align-items: center;
  height: 25px;
  padding: 0 10px;
  border: 1px solid rgba(31, 78, 61, .2);
  background: rgba(182, 207, 187, .18);
  color: var(--primary);
  font-size: 11.5px;
  font-weight: 700;
  border-radius: 999px;
  letter-spacing: .02em;
  white-space: nowrap;
}
.main-wrap {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 14px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}
.nav-link {
  position: relative;
  display: inline-block;
  padding: 7px 0;
  color: #39443d;
  font-size: 15px;
  font-weight: 500;
  transition: color .16s ease;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .16s ease;
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--primary); font-weight: 700; }
.nav-link.active::after {
  background: var(--primary);
  transform: scaleX(1);
}
.header-cta {
  height: 40px;
  padding: 0 18px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: background-color .16s ease, transform .16s ease, box-shadow .16s ease;
  box-shadow: 0 8px 18px -12px rgba(199,111,50,.55);
}
.header-cta:hover {
  background: #b65e28;
  transform: translateY(-2px);
  box-shadow: 0 12px 22px -14px rgba(199,111,50,.6);
}
.nav-toggle {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--border);
  color: var(--primary-dark);
  display: none;
  align-items: center;
  justify-content: center;
  transition: background-color .16s ease;
}
.nav-toggle:hover { background: rgba(31, 78, 61, .06); }
@media (max-width: 1023px) {
  .header-wrap { min-height: 68px; }
  .brand-name { font-size: 18px; }
  .brand-mark { width: 34px; height: 34px; border-radius: 10px; }
  .brand-pill { font-size: 10px; height: 22px; padding: 0 7px; }
  .main-nav { display: none; }
  .header-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .main-wrap { margin-left: auto; }
}

/* 移动端抽屉 */
.mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: 90;
  visibility: hidden;
  pointer-events: none;
}
.drawer-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(16, 37, 29, .42);
  opacity: 0;
  transition: opacity .16s ease;
}
.drawer-panel {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: min(86vw, 340px);
  background: #fbf8f1;
  padding: 22px 20px 28px;
  transform: translateX(-100%);
  transition: transform .18s ease;
  display: flex;
  flex-direction: column;
  gap: 20px;
  overflow-y: auto;
  box-shadow: 16px 0 44px -22px rgba(16,37,29,.24);
}
body.drawer-open { overflow: hidden; }
body.drawer-open .mobile-drawer { visibility: visible; pointer-events: auto; }
body.drawer-open .drawer-backdrop { opacity: 1; }
body.drawer-open .drawer-panel { transform: none; }
.drawer-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.drawer-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  color: var(--primary-dark);
}
.drawer-close {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  color: var(--primary);
  font-size: 20px;
  line-height: 1;
  transition: background .16s ease;
}
.drawer-close:hover { background: var(--accent-soft); }
.drawer-keyword {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  height: 26px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 700;
}
.drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}
.drawer-nav a {
  display: block;
  padding: 10px 4px;
  color: #2f3a34;
  font-size: 15px;
  font-weight: 600;
  border-radius: 8px;
  transition: color .16s ease, background-color .16s ease;
}
.drawer-nav a:hover { color: var(--primary); background: rgba(31,78,61,.06); }
.drawer-nav a.active { color: var(--primary); }
.drawer-contact {
  margin-top: auto;
  font-size: 12px;
  color: var(--muted);
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

/* 面包屑 */
.page-breadcrumb {
  background: rgba(31, 78, 61, .035);
  border-bottom: 1px solid rgba(31, 78, 61, .06);
}
.breadcrumb-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  min-height: 42px;
  font-size: 13px;
  color: var(--muted);
}
.breadcrumb-inner a { color: var(--muted); transition: color .16s ease; }
.breadcrumb-inner a:hover { color: var(--accent); }
.breadcrumb-sep { color: #c0c6c1; }
.breadcrumb-current { color: var(--primary); font-weight: 600; max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* 文章主体区 */
.article-section {
  padding: 46px 0 18px;
}
.article-inner {
  max-width: 900px;
}
.article-surface {
  background: #fffdf8;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 56px 60px 52px;
}
.article-head {
  text-align: left;
  margin-bottom: 40px;
}
.article-kicker {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--accent);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .04em;
  margin-bottom: 14px;
}
.article-kicker::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--accent);
  border-radius: 999px;
}
.article-title {
  font-size: 38px;
  line-height: 1.25;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: -.02em;
  margin-bottom: 20px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  color: var(--muted);
  font-size: 13px;
  border-top: 1px solid rgba(31,78,61,.07);
  border-bottom: 1px solid rgba(31,78,61,.07);
  padding: 10px 0;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.meta-item svg { width: 15px; height: 15px; color: var(--muted); opacity: .75; }
.meta-dot { opacity: .35; }

.article-body {
  max-width: 760px;
  margin: 0 auto;
  font-size: 18px;
  color: #2c352e;
  line-height: 1.9;
}
.article-body > p {
  margin-bottom: 1.5em;
}
.article-body h2 {
  font-size: 27px;
  font-weight: 800;
  color: var(--primary-dark);
  margin: 2.1em 0 .85em;
  line-height: 1.3;
}
.article-body h3 {
  font-size: 21px;
  font-weight: 800;
  color: var(--primary-dark);
  margin: 1.9em 0 .7em;
}
.article-body h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-dark);
  margin: 1.6em 0 .5em;
}
.article-body ul,
.article-body ol {
  margin: 1.2em 0 1.6em;
  padding-left: 1.4em;
}
.article-body li { margin-bottom: .55em; }
.article-body ul li::marker { color: var(--accent); }
.article-body a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; transition: color .16s ease; }
.article-body a:hover { color: var(--primary); }
.article-body img {
  border-radius: 14px;
  margin: 1.8em 0;
  box-shadow: var(--shadow);
}
.article-body blockquote {
  margin: 2em 0;
  padding: 4px 24px;
  border-left: 3px solid var(--primary);
  border-radius: 0 10px 10px 0;
  background: rgba(31,78,61,.05);
  color: #4a5a51;
  font-size: 17px;
}
.article-body blockquote p { margin: 0; }
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.8em 0;
  font-size: 15px;
  border-radius: 10px;
  overflow: hidden;
}
.article-body th {
  background: var(--primary);
  color: #fff;
  padding: 11px 13px;
  text-align: left;
  font-weight: 600;
}
.article-body td {
  padding: 10px 13px;
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.7);
}
.article-body tr:last-child td { border-bottom: 0; }
.article-body code {
  background: rgba(31,78,61,.08);
  border-radius: 6px;
  padding: 2px 7px;
  font-size: .88em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.article-body hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 2.5em auto;
  max-width: 160px;
}
.article-body .wp-caption-text,
.article-body figcaption {
  font-size: 13px;
  color: var(--muted);
  text-align: center;
  margin-top: -1.2em;
  margin-bottom: 1.8em;
}

/* 正文空态 */
.missing-surface {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  padding: 46px 24px;
  border: 2px dashed rgba(31,78,61,.24);
  border-radius: 18px;
  background: rgba(255,255,255,.55);
}
.missing-code {
  font-size: 52px;
  font-weight: 800;
  color: var(--primary-soft);
  line-height: 1;
  letter-spacing: -2px;
}
.missing-surface h1 {
  font-size: 30px;
  margin: 10px 0 10px;
  color: var(--primary-dark);
}
.missing-surface p {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 26px;
}
.missing-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}
.btn-base {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  transition: transform .16s ease, box-shadow .16s ease, background-color .16s ease, color .16s ease, border-color .16s ease;
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 18px -12px rgba(199,111,50,.5);
}
.btn-accent:hover { background: #b95b25; transform: translateY(-2px); }
.btn-line {
  border: 1px solid rgba(31,78,61,.3);
  color: var(--primary-dark);
  background: rgba(255,255,255,.8);
}
.btn-line:hover {
  border-color: var(--primary);
  background: rgba(31,78,61,.05);
  transform: translateY(-2px);
}

/* 文末分享区 */
.article-tail {
  margin-top: 50px;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}
.tail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-bottom: 26px;
}
.tag-chip {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(31,78,61,.07);
  color: var(--primary);
  font-size: 12.5px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: background-color .16s ease, color .16s ease, border-color .16s ease;
}
.tag-chip:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.share-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
.share-lable {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  margin-right: 4px;
}
.share-btn {
  height: 38px;
  padding: 0 15px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: #fff;
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: border-color .16s ease, background-color .16s ease, transform .16s ease;
}
.share-btn:hover {
  border-color: rgba(31,78,61,.35);
  background: rgba(31,78,61,.05);
  transform: translateY(-1px);
}
.share-btn svg { width: 15px; height: 15px; }
.share-feedback {
  font-size: 13px;
  color: var(--accent);
  font-weight: 600;
}

/* 前一篇 / 下一篇 */
.post-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 44px 0 8px;
}
.pager-card {
  display: block;
  border-radius: 14px;
  background: #faf7ef;
  border: 1px solid rgba(31,78,61,.1);
  padding: 18px 20px;
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease, background-color .16s ease;
}
.pager-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: rgba(31,78,61,.24);
  background: #fff;
}
.pager-card.next { text-align: right; }
.pager-kind {
  display: block;
  font-size: 12px;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 4px;
}
.pager-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.5;
}
.pager-time {
  display: block;
  margin-top: 5px;
  font-size: 12px;
  color: var(--muted);
}

/* 相关推荐 */
.related-section {
  padding: 84px 0 20px;
}
.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 34px;
}
.section-eyebrow {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: .08em;
  margin-bottom: 6px;
}
.section-title {
  font-size: 30px;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: -.01em;
}
.section-note {
  max-width: 420px;
  font-size: 14px;
  color: var(--muted);
  text-align: right;
  line-height: 1.7;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.related-card {
  display: flex;
  flex-direction: column;
  background: #fffdf8;
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(31,78,61,.2);
}
.related-media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--primary-soft);
  position: relative;
}
.related-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .2s ease;
}
.related-card:hover .related-media img { transform: scale(1.03); }
.related-media::after {
  content: "";
  position: absolute;
  inset: 0;
  box-shadow: inset 0 -38px 40px -30px rgba(16,37,29,.26);
  pointer-events: none;
}
.related-content {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 22px 22px 20px;
}
.related-cat {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 7px;
  letter-spacing: .03em;
}
.related-content h3 {
  font-size: 18px;
  line-height: 1.5;
  margin-bottom: 10px;
  color: var(--primary-dark);
}
.related-content p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 18px;
}
.related-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  transition: color .16s ease;
}
.related-card:hover .related-link { color: var(--accent); }
.related-link span { transition: transform .16s ease; }
.related-card:hover .related-link span { transform: translateX(4px); }

/* 文章底部 CTA */
.article-cta {
  margin: 70px 0 0;
  padding: 0 20px;
}
.article-cta-inner {
  position: relative;
  border-radius: 26px;
  overflow: hidden;
  background:
    linear-gradient(100deg, rgba(16, 37, 29, .96) 8%, rgba(31, 78, 61, .88) 58%, rgba(199, 111, 50, .76)),
    url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  color: #fff;
  padding: 56px 56px 56px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  box-shadow: var(--shadow);
}
.cta-copy { max-width: 620px; }
.cta-copy h2 {
  color: #fff;
  font-size: 28px;
  margin-bottom: 12px;
  font-weight: 800;
}
.cta-copy p { color: rgba(255,255,255,.78); font-size: 15px; margin-bottom: 18px; max-width: 560px; }
.cta-badge {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 12px;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.18);
  color: #fff;
  font-size: 12px;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: .02em;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.cta-primary {
  display: inline-flex;
  align-items: center;
  height: 48px;
  padding: 0 24px;
  background: #fff;
  color: var(--primary-dark);
  font-size: 15px;
  font-weight: 700;
  border-radius: 11px;
  gap: 8px;
  box-shadow: 0 8px 18px -12px rgba(0,0,0,.3);
  transition: transform .16s ease, background-color .16s ease;
}
.cta-primary:hover { background: var(--accent-soft); transform: translateY(-2px); }
.cta-line {
  display: inline-flex;
  align-items: center;
  height: 48px;
  padding: 0 22px;
  background: transparent;
  border: 1px solid rgba(255,255,255,.42);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border-radius: 11px;
  gap: 8px;
  transition: background-color .16s ease, border-color .16s ease, transform .16s ease;
}
.cta-line:hover { background: rgba(255,255,255,.12); border-color: #fff; transform: translateY(-2px); }

/* 页脚 */
.site-footer {
  margin-top: 86px;
  background: var(--deep);
  color: rgba(255,255,255,.78);
  font-size: 14px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.05fr;
  gap: 46px;
  padding-top: 70px;
  padding-bottom: 56px;
}
.site-footer h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 18px;
}
.brand-inline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  color: #fff;
}
.brand-inline svg { flex: 0 0 auto; }
.site-footer .footer-brand p {
  color: rgba(255,255,255,.58);
  margin: 14px 0 18px;
  line-height: 1.8;
}
.foot-tag {
  display: inline-flex;
  height: 27px;
  padding: 0 12px;
  align-items: center;
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.1);
  color: rgba(255,255,255,.78);
  font-size: 12px;
  font-weight: 600;
}
.footer-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.footer-list a {
  color: rgba(255,255,255,.62);
  transition: color .16s ease, transform .16s ease;
  display: inline-block;
}
.footer-list a:hover { color: #fff; transform: translateX(3px); }
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 14px;
  color: rgba(255,255,255,.66);
  line-height: 1.75;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.4);
}
.footer-bottom a { color: rgba(255,255,255,.56); transition: color .16s ease; }
.footer-bottom a:hover { color: #fff; }

@media (min-width: 1024px) and (max-width: 1220px) {
  .brand-pill { display: none; }
}
@media (max-width: 1023px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: 34px; padding-top: 56px; padding-bottom: 48px; }
  .article-cta-inner { padding: 40px 30px; }
}
@media (max-width: 767px) {
  .container { padding-left: 20px; padding-right: 20px; }
  .article-surface { padding: 34px 22px 38px; border-radius: 18px; }
  .article-title { font-size: 28px; line-height: 1.38; }
  .article-body { font-size: 17px; line-height: 1.85; }
  .article-body h2 { font-size: 23px; }
  .related-grid { grid-template-columns: 1fr; gap: 18px; }
  .section-title { font-size: 25px; }
  .section-heading { flex-direction: column; align-items: flex-start; }
  .section-note { text-align: left; max-width: 100%; }
  .post-pager { grid-template-columns: 1fr; }
  .article-cta-inner { padding: 36px 20px; flex-direction: column; align-items: flex-start; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; padding-top: 48px; padding-bottom: 40px; }
  .cta-copy h2 { font-size: 23px; }
  .client-strip { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .topbar-inner { justify-content: center; }
  .topbar-meta a:not(.topbar-main) { display: none; }
  .article-title { font-size: 24px; }
  .article-cta { padding: 0 14px; }
  .breadcrumb-current { max-width: 150px; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
  .related-card:hover, .btn-accent:hover, .header-cta:hover, .cta-primary:hover, .cta-line:hover { transform: none; }
  .related-card:hover .related-media img { transform: none; }
}

/* roulang page: category2 */
:root {
            --primary: #1f4e3d;
            --primary-deep: #123028;
            --primary-light: #b6cfbb;
            --accent: #c76f32;
            --accent-soft: #f3e0cf;
            --page-bg: #f6f3eb;
            --text-ink: #1b221e;
            --text-muted: #6f7a73;
            --dark-block: #10251d;
            --card-border: rgba(31, 78, 61, 0.14);
            --card-shadow: 0 12px 34px -20px rgba(18, 48, 40, 0.28);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
            background: var(--page-bg);
            color: var(--text-ink);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        body.nav-fixed-pad {
            padding-top: 70px;
        }
        .container-x {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 640px) {
            .container-x {
                padding-left: 20px;
                padding-right: 20px;
            }
        }
        .top-info {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.92);
            font-size: 13px;
            height: 36px;
            display: flex;
            align-items: center;
        }
        .top-info a {
            color: #fff;
            text-decoration: none;
            transition: opacity .18s;
        }
        .top-info a:hover {
            opacity: .8;
        }
        .main-header {
            position: sticky;
            top: 0;
            z-index: 55;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(31, 78, 61, 0.1);
            transition: box-shadow .2s;
        }
        .main-header.scrolled {
            box-shadow: 0 12px 30px -22px rgba(18, 48, 40, .6);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: nowrap;
            white-space: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            padding: 4px 0;
        }
        .main-nav::-webkit-scrollbar {
            display: none;
        }
        .brand-block {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex: 0 0 auto;
        }
        .brand-mark {
            display: inline-flex;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: var(--primary);
            color: #fff;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 18px -10px rgba(31, 78, 61, .8);
        }
        .brand-word {
            font-size: 21px;
            font-weight: 800;
            color: var(--primary-deep);
            letter-spacing: .02em;
            line-height: 1.3;
        }
        .brand-keyword-badge {
            display: inline-flex;
            align-items: center;
            height: 26px;
            background: var(--accent-soft);
            color: #8a4a1f;
            border: 1px solid rgba(199, 111, 50, .3);
            border-radius: 999px;
            padding: 0 14px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: .04em;
            margin-top: 2px;
            white-space: nowrap;
        }
        .header-cta a,
        .header-cta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 38px;
            border-radius: 10px;
            padding: 0 16px;
            font-size: 13px;
            font-weight: 600;
            text-decoration: none;
            transition: all .18s;
        }
        .header-cta .btn-ghost {
            border: 1px solid rgba(31, 78, 61, .25);
            color: var(--primary-deep);
            background: rgba(255, 255, 255, .6);
        }
        .header-cta .btn-ghost:hover {
            background: var(--page-bg);
            border-color: rgba(31, 78, 61, .4);
        }
        .site-header-wrap {
            height: 76px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
        }
        .nav-links a {
            text-decoration: none;
            color: #32423a;
            font-size: 15px;
            font-weight: 500;
            border-radius: 8px;
            padding: 8px 14px;
            transition: background .18s, color .18s;
            position: relative;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: rgba(31, 78, 61, .06);
        }
        .nav-links a.active {
            color: var(--primary);
            font-weight: 700;
        }
        .nav-links a.active::after {
            content: "";
            position: absolute;
            bottom: -27px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        @media (max-width: 1180px) {
            .nav-links a {
                font-size: 13px;
                padding: 7px 8px;
            }
            .brand-keyword-badge {
                font-size: 11px;
                padding: 0 10px;
            }
        }
        @media (min-width: 1025px) {
            .mobile-drawer-trigger {
                display: none !important;
            }
        }
        @media (max-width: 1024px) {
            .desktop-nav {
                display: none;
            }
            .header-cta .btn-ghost {
                display: none;
            }
            .mobile-drawer-trigger {
                display: inline-flex;
                width: 42px;
                height: 42px;
                border-radius: 10px;
                background: var(--page-bg);
                border: 1px solid rgba(31, 78, 61, .15);
                color: var(--primary);
                align-items: center;
                justify-content: center;
                font-size: 18px;
            }
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 90;
        }
        .mobile-drawer.active {
            display: block;
        }
        .drawer-mask {
            background: rgba(0, 0, 0, .4);
            height: 100%;
            width: 100%;
            position: absolute;
            top: 0;
            left: 0;
        }
        .drawer-panel {
            position: absolute;
            top: 0;
            left: 0;
            width: min(84%, 360px);
            height: 100%;
            background: #fff;
            box-shadow: 20px 0 60px rgba(0, 0, 0, .2);
            display: flex;
            flex-direction: column;
            padding: 28px 20px 30px;
            transform: translateX(-100%);
            animation: drawerIn .24s ease forwards;
        }
        @keyframes drawerIn {
            to {
                transform: translateX(0);
            }
        }
        .drawer-panel .main-nav {
            flex-direction: column;
            align-items: flex-start;
            gap: 18px;
            overflow-y: auto;
            margin-top: 10px;
            white-space: normal;
        }
        .drawer-panel .nav-link {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-ink);
        }
        .drawer-panel .nav-link.active {
            color: var(--primary);
        }
        .drawer-close {
            align-self: flex-end;
            background: var(--page-bg);
            border: none;
            border-radius: 12px;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .c-cat-kicker {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            padding: 4px 12px;
            background: rgba(199, 111, 50, .1);
            border: 1px solid rgba(199, 111, 50, .18);
            border-radius: 999px;
        }
        .hero-cat {
            height: auto;
            min-height: 360px;
            padding: 80px 0 48px;
            background: linear-gradient(120deg, #eef3e0 0%, #e6efda 45%, #d8e6ce 100%);
            position: relative;
            overflow: hidden;
        }
        .hero-img-wrap {
            border-radius: 22px;
            overflow: hidden;
            box-shadow: 0 24px 50px -30px rgba(18, 48, 40, .7);
        }
        .hero-img-wrap img {
            width: 100%;
            height: 300px;
            object-fit: cover;
            display: block;
        }
        .hero-pattern {
            position: absolute;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(31, 78, 61, .1) 0%, transparent 70%);
            border-radius: 50%;
            top: -90px;
            right: -60px;
            z-index: 0;
        }
        .section-space {
            padding: 96px 0;
        }
        @media (max-width: 767px) {
            .section-space {
                padding: 56px 0;
            }
        }
        .sec-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: .06em;
            color: var(--accent);
            border: 1px solid rgba(199, 111, 50, .2);
            padding: 5px 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .6);
        }
        .section-title {
            font-size: clamp(27px, 3vw, 34px);
            font-weight: 800;
            line-height: 1.3;
            color: var(--primary-deep);
            letter-spacing: -.01em;
            margin-top: 18px;
            margin-bottom: 14px;
        }
        .section-sub {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.9;
        }
        .cat-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            border-radius: 16px;
            transition: transform .3s ease, box-shadow .3s ease;
        }
        .cat-card-media {
            overflow: hidden;
            border-radius: 16px;
        }
        .cat-media-zoom:hover .cat-card-media img {
            transform: scale(1.04);
        }
        .learn-group {
            background: #fff;
            border: 1px solid var(--card-border);
            border-radius: 18px;
            padding: 28px;
            box-shadow: 0 10px 30px -20px rgba(18, 48, 40, .25);
            transition: box-shadow .2s ease, transform .2s ease;
            height: 100%;
        }
        .learn-group:hover {
            transform: translateY(-2px);
            box-shadow: 0 20px 35px -20px rgba(18, 48, 40, .35);
        }
        .learn-num {
            font-size: 14px;
            color: #a3aea6;
            font-weight: 700;
            letter-spacing: .02em;
            border-bottom: 1px solid #edf0e4;
            padding-bottom: 14px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .learn-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-deep);
            margin: 18px 0 12px;
            line-height: 1.4;
        }
        .learn-text {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.85;
            margin-bottom: 14px;
        }
        .link-arrow {
            color: var(--accent);
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap .18s;
        }
        .link-arrow i {
            font-size: 12px;
        }
        .link-arrow:hover {
            gap: 10px;
        }
        .timeline {
            position: relative;
            margin-top: 36px;
            list-style: none;
            padding-left: 0;
        }
        .timeline-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 24px 0 24px;
            border-bottom: 1px solid rgba(31, 78, 61, .09);
            position: relative;
        }
        .timeline-item:last-child {
            border-bottom: none;
        }
        .timeline-badge {
            flex: 0 0 52px;
            height: 52px;
            background: #edf3e5;
            color: var(--primary);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            border: 1px solid rgba(31, 78, 61, .08);
        }
        .timeline-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary-deep);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .timeline-text {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.85;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--card-border);
            border-radius: 16px;
            padding: 24px 26px;
            transition: box-shadow .2s;
            box-shadow: 0 6px 20px -18px rgba(18, 48, 40, .2);
        }
        .faq-item:hover {
            box-shadow: 0 10px 26px -20px rgba(18, 48, 40, .35);
        }
        .faq-item summary {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary-deep);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary i {
            color: var(--accent);
            transition: transform .2s;
        }
        .faq-item[open] summary i {
            transform: rotate(180deg);
        }
        .faq-item .faq-body {
            margin-top: 14px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.9;
            padding-right: 16px;
        }
        .btn-primary,
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 22px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: background .2s, color .2s, transform .15s, box-shadow .2s;
            gap: 8px;
            text-decoration: none;
            letter-spacing: .01em;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 8px 20px -8px rgba(199, 111, 50, .6);
        }
        .btn-primary:hover {
            background: #b46225;
            box-shadow: 0 12px 24px -8px rgba(199, 111, 50, .6);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .6);
            color: #fff;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, .18);
            border-color: #fff;
        }
        .small-widget {
            background: var(--dark-block);
            color: rgba(255, 255, 255, .8);
            border-radius: 24px;
            overflow: hidden;
            position: relative;
        }
        .small-widget:before {
            content: "";
            position: absolute;
            top: -60%;
            right: -20%;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(182, 207, 187, .18), transparent 65%);
            pointer-events: none;
        }
        .list-arrow-green li {
            position: relative;
            padding-left: 22px;
            margin-bottom: 12px;
            color: rgba(255, 255, 255, .76);
            font-size: 15px;
        }
        .list-arrow-green li::before {
            content: "\f105";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 0;
            top: -1px;
            color: var(--primary-light);
        }
        .text-tight p {
            margin-bottom: 14px;
        }
        .text-tight p:last-child {
            margin-bottom: 0;
        }
        .site-footer {
            background: var(--dark-block);
            color: rgba(255, 255, 255, .62);
        }
        .footer-top {
            padding: 56px 24px 36px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            max-width: 1280px;
            margin: 0 auto;
        }
        @media (max-width: 1024px) {
            .footer-top {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 620px) {
            .footer-top {
                grid-template-columns: 1fr;
                padding-left: 20px;
                padding-right: 20px;
            }
        }
        .footer-brand h4,
        .footer-top h4 {
            color: #f2f7ed;
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .foot-tag {
            background: rgba(182, 207, 187, .14);
            border: 1px solid rgba(182, 207, 187, .18);
            border-radius: 999px;
            padding: 5px 14px;
            font-size: 12px;
            color: rgba(255, 255, 255, .66);
            display: inline-block;
            margin-top: 8px;
        }
        .footer-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-list li {
            padding: 0;
            margin-bottom: 12px;
        }
        .footer-list a {
            color: rgba(255, 255, 255, .68);
            text-decoration: none;
            font-size: 14px;
            transition: color .18s;
        }
        .footer-list a:hover {
            color: var(--primary-light);
        }
        .footer-contact {
            font-size: 14px;
            line-height: 1.9;
            color: rgba(255, 255, 255, .68);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 24px 0 30px;
        }
        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }
        .footer-bottom p {
            font-size: 13px;
            margin: 0;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, .62);
            text-decoration: none;
        }
        @media (max-width: 640px) {
            .footer-bottom .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
                padding-left: 20px;
                padding-right: 20px;
            }
        }
        ::selection {
            background: var(--primary);
            color: #fff;
        }
        .bottom-cta {
            background: linear-gradient(120deg, var(--primary-deep) 0%, var(--primary) 75%, #2a6955 100%);
            border-radius: 28px;
        }
        .floating-arrow {
            border: 1px solid rgba(31, 78, 61, .12);
            background: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            color: var(--primary);
            box-shadow: 0 8px 14px -10px rgba(18, 48, 40, .5);
            transition: all .2s;
            text-decoration: none;
        }
        .floating-arrow:hover {
            transform: translateY(-3px);
        }
        .floating-arrow:disabled,
        .floating-arrow.is-disabled {
            opacity: .45;
            pointer-events: none;
        }

/* roulang page: category3 */
:root {
  --page-bg: #f6f3eb;
  --primary: #1f4e3d;
  --primary-dark: #123028;
  --primary-soft: #b6cfbb;
  --accent: #c76f32;
  --accent-soft: #f3e0cf;
  --ink: #1b221e;
  --muted: #6f7a73;
  --section-deep: #10251d;
  --surface: #ffffff;
  --line: rgba(31, 78, 61, 0.14);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-card: 0 10px 30px -18px rgba(18, 48, 40, 0.25);
  --shadow-float: 0 18px 40px -24px rgba(18, 48, 40, 0.4);
  --container: 1280px;
  --ease: 160ms cubic-bezier(.2, .7, .3, 1);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--page-bg);
  color: var(--ink);
  font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
ul, ol, p, figure, h1, h2, h3, h4, h5 {
  margin: 0;
  padding: 0;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  display: block;
}
button, input, textarea, select {
  font: inherit;
}
.container {
  width: min(var(--container), calc(100% - 48px));
  margin-inline: auto;
}
.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 1200;
  background: var(--primary);
  color: #fff;
  padding: 8px 14px;
  border-radius: 8px;
  transition: top 160ms ease;
}
.skip-link:focus-visible {
  top: 10px;
  outline: none;
}
.section-pad {
  padding-top: 96px;
  padding-bottom: 96px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: .08em;
  font-weight: 600;
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
}
.section-title {
  font-size: clamp(28px, 3.2vw, 36px);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.section-intro {
  color: var(--muted);
  font-size: 17px;
  max-width: 720px;
  margin-top: 16px;
}

/* topbar */
.topbar {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.9);
  min-height: 36px;
  display: flex;
  align-items: center;
  font-size: 13px;
}
.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  width: min(var(--container), calc(100% - 48px));
  margin-inline: auto;
}
.topbar-inner a {
  color: inherit;
  transition: opacity var(--ease);
}
.topbar-inner a:hover {
  opacity: .78;
}
.topbar-inner .topbar-action {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 10px;
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 999px;
  margin-left: 10px;
}

/* header */
.site-head {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(31,78,61,.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
  gap: 22px;
  width: min(var(--container), calc(100% - 48px));
  margin-inline: auto;
}
.brand-line {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 18px -10px rgba(31,78,61,.8);
}
.brand-name {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.brand-name strong {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .02em;
}
.brand-name span {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .05em;
}
.kw-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 6px;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #934a18;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .02em;
  white-space: nowrap;
  border: 1px solid rgba(199, 111, 50, 0.15);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 600;
  color: #36433b;
  padding: 12px 2px;
  transition: color var(--ease);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 6px;
  height: 2px;
  background: var(--primary);
  border-radius: 4px;
  transition: right var(--ease);
}
.nav-link:hover {
  color: var(--primary);
}
.nav-link:hover::after {
  right: 0;
}
.nav-link.active {
  color: var(--primary-dark);
}
.nav-link.active::after {
  right: 0;
}
.nav-cta {
  margin-left: 10px;
}
.btn-primary, .btn-outline, .btn-accent {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 14px;
  line-height: 1;
  padding: 12px 20px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background var(--ease), color var(--ease), border var(--ease), box-shadow var(--ease), transform var(--ease);
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 20px -12px rgba(31, 78, 61, .8);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}
.btn-primary:focus-visible, .btn-outline:focus-visible, .btn-accent:focus-visible {
  outline: 3px solid rgba(31, 78, 61, .3);
  outline-offset: 3px;
}
.btn-outline {
  border-color: rgba(255, 255, 255, .72);
  color: #fff;
  background: rgba(255,255,255,0.08);
}
.btn-outline:hover {
  background: rgba(255,255,255,.16);
  border-color: #fff;
  transform: translateY(-2px);
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 12px 22px -14px rgba(199,111,50,.9);
}
.btn-accent:hover {
  background: #b15928;
  transform: translateY(-2px);
}
.menu-toggle {
  display: none;
  background: transparent;
  border: 0;
  color: var(--primary-dark);
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  cursor: pointer;
}
.menu-toggle:hover {
  background: var(--page-bg);
}
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(20, 30, 25, .45);
  z-index: 10;
}

/* category hero */
.cat-hero {
  background: linear-gradient(115deg, rgba(246,243,235,1) 0%, rgba(246,243,235,1) 44%, rgba(204,218,199,.7) 100%);
  border-bottom: 1px solid var(--line);
  min-height: 46vh;
  padding: 88px 0 96px;
  position: relative;
  overflow: hidden;
}
.cat-hero::before {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  right: -90px;
  top: -140px;
  background: radial-gradient(circle, rgba(182,207,187,.4), transparent 70%);
  pointer-events: none;
}
.hero-split {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, .9fr);
  gap: 52px;
  align-items: center;
}
.hero-eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: rgba(255,255,255,.95);
  padding: 6px 12px 6px 10px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid rgba(31,78,61,.2);
}
.hero-tag.solid-soft {
  background: #fff;
  color: var(--primary-dark);
}
.cat-hero h1 {
  font-size: clamp(42px, 6.4vw, 76px);
  line-height: 1.08;
  font-weight: 900;
  color: var(--primary-dark);
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.hero-lead {
  max-width: 610px;
  font-size: 18px;
  line-height: 1.9;
  color: #46524b;
  margin-bottom: 30px;
}
.hero-lead strong {
  color: var(--primary);
  font-weight: 700;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.hero-proof {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  color: var(--muted);
  font-size: 13.5px;
}
.hero-proof span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero-proof svg {
  opacity: .7;
}
.hero-visual {
  position: relative;
}
.hero-visual img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-float);
  border: 6px solid rgba(255,255,255,.72);
}
.hero-note {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 18px;
  padding: 14px 18px;
  background: rgba(255,255,255,.9);
  border-radius: 16px;
  backdrop-filter: blur(8px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  border: 1px solid rgba(31,78,61,.1);
}
.hero-note strong {
  font-size: 14px;
  color: var(--primary-dark);
  display: block;
}
.hero-note span {
  font-size: 13px;
  color: var(--muted);
}

/* section arrow tool */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 48px;
}
.section-meta {
  font-size: 14px;
  color: var(--muted);
  white-space: nowrap;
}
.section-meta strong {
  color: var(--primary);
  font-weight: 800;
}

/* supply archive */
.supply-archive {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: stretch;
}
.archive-feature {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 450px;
  box-shadow: var(--shadow-card);
}
.archive-feature img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 500ms ease;
}
.archive-feature:hover img {
  transform: scale(1.025);
}
.feature-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(16,37,29,0) 32%, rgba(16,37,29,.82) 100%);
  display: flex;
  align-items: flex-end;
}
.feature-overlay .inner {
  color: #fff;
  padding: 32px;
  max-width: 460px;
}
.feature-overlay small {
  color: rgba(255,255,255,.7);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.feature-overlay h3 {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: .01em;
  margin-bottom: 8px;
}
.feature-overlay p {
  color: rgba(255,255,255,.8);
  font-size: 15px;
}
.archive-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.archive-item {
  flex: 1;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
  box-shadow: var(--shadow-card);
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
  cursor: pointer;
}
.archive-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-float);
  border-color: rgba(31,78,61,.24);
}
.item-index {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: #9a5122;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  flex-shrink: 0;
}
.item-copy h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 4px;
}
.item-copy p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

/* scenario band */
.scenario-area {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.scenario-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.scenario-card {
  border-radius: var(--radius-lg);
  background: var(--page-bg);
  border: 1px solid transparent;
  padding: 30px;
  transition: background var(--ease), border var(--ease), transform var(--ease), box-shadow var(--ease);
}
.scenario-card:hover {
  background: #fff;
  border-color: var(--line);
  transform: translateY(-4px);
  box-shadow: var(--shadow-float);
}
.scenario-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.scenario-card h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 10px;
}
.scenario-card p {
  color: var(--muted);
  font-size: 14.5px;
}
.scenario-card .scenario-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--primary);
  margin-top: 16px;
  font-weight: 700;
  border-radius: 999px;
  padding: 3px 10px;
  background: rgba(182,207,187,.28);
}

/* process */
.process-panel {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: process;
}
.step-item {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: 0 8px 24px -20px rgba(18,48,40,.3);
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}
.step-item:hover {
  border-color: rgba(31,78,61,.25);
  transform: translateY(-5px);
  box-shadow: var(--shadow-float);
}
.step-number {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.step-number::after {
  content: "";
  height: 1px;
  flex: 1;
  background: var(--line);
}
.step-icon {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}
.step-item h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 8px;
}
.step-item p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.75;
}

/* dark shipping band */
.shipping-band {
  position: relative;
  background:
    linear-gradient(90deg, rgba(16,37,29,.92), rgba(16,37,29,.72)),
    url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  border-radius: 0;
  padding: 92px 0;
  color: #fff;
}
.shipping-wrap {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 56px;
  align-items: center;
}
.shipping-wrap .eyebrow::before {
  background: var(--accent);
}
.shipping-title {
  font-size: clamp(28px, 3vw, 36px);
  line-height: 1.25;
  font-weight: 800;
  margin: 10px 0 16px;
  color: #fff;
  letter-spacing: -0.02em;
}
.shipping-copy {
  color: rgba(255,255,255,.76);
  font-size: 16px;
  margin-bottom: 26px;
  max-width: 620px;
}
.shipping-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.shipping-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: rgba(255,255,255,.86);
}
.shipping-list li svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  color: #9fc5a7;
}
.shipping-aside {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 24px;
  padding: 30px;
}
.shipping-aside h3 {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 12px;
}
.shipping-aside p {
  color: rgba(255,255,255,.68);
  font-size: 14px;
}
.shipping-aside .btn-outline {
  margin-top: 20px;
}

/* lead form */
.lead-area {
  background:
    radial-gradient(circle at 92% 18%, rgba(243,224,207,.8), transparent 26%),
    var(--page-bg);
}
.lead-grid {
  display: grid;
  grid-template-columns: .9fr 1.2fr;
  gap: 56px;
  align-items: start;
}
.lead-info {
  position: sticky;
  top: 140px;
}
.lead-info .lead-note {
  margin-top: 30px;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 15px;
}
.lead-info .contact-stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 22px;
}
.contact-row {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--primary-dark);
  font-weight: 600;
  font-size: 15px;
}
.contact-row svg {
  color: var(--accent);
}
.contact-row small {
  color: var(--muted);
  font-weight: 400;
}
.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 30px;
  box-shadow: var(--shadow-card);
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.form-group {
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
}
.form-group.full {
  grid-column: 1 / -1;
}
.form-group label {
  font-size: 13px;
  font-weight: 700;
  color: #35453c;
  margin-bottom: 7px;
  letter-spacing: .02em;
}
.form-group input,
.form-group textarea {
  width: 100%;
  background: #fcfbf7;
  border: 1px solid rgba(31,78,61,.16);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--ink);
  transition: border var(--ease), box-shadow var(--ease), background var(--ease);
}
.form-group input {
  height: 48px;
}
.form-group textarea {
  min-height: 126px;
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: 0;
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(31,78,61,.13);
}
.form-group .hint {
  font-size: 12px;
  color: #99a39d;
  margin-top: 6px;
}
.form-submit-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-top: 8px;
}
.form-privacy {
  font-size: 12px;
  color: var(--muted);
}
.form-note {
  font-size: 13px;
  color: var(--muted);
  background: var(--accent-soft);
  border-radius: 10px;
  padding: 10px 14px;
  margin-top: 14px;
}

/* faq */
.faq-area {
  background: var(--surface);
}
.faq-grid {
  max-width: 900px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 6px;
  font-size: 17px;
  font-weight: 700;
  color: #26372e;
  transition: color var(--ease);
}
.faq-item summary:hover {
  color: var(--primary);
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-icon {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  color: var(--accent);
  transition: transform var(--ease);
}
.faq-item[open] .faq-icon {
  transform: rotate(45deg);
}
.faq-item p {
  padding: 0 40px 22px 6px;
  color: var(--muted);
  font-size: 15px;
}
.faq-item code {
  background: var(--page-bg);
  color: var(--primary-dark);
  padding: 2px 7px;
  border-radius: 6px;
}

/* continue CTA */
.cat-go-area {
  padding: 74px 0;
  background: linear-gradient(180deg, var(--surface), var(--page-bg));
}
.cat-go-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.cat-go-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  padding: 20px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}
.cat-go-card:hover {
  transform: translateY(-3px);
  border-color: rgba(31,78,61,.24);
  box-shadow: var(--shadow-card);
}
.go-card-label {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 2px;
}
.go-card-title {
  font-weight: 800;
  color: var(--primary-dark);
}
.go-arrow {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--ease);
}
.cat-go-card:hover .go-arrow {
  background: var(--primary);
  color: #fff;
}

/* site footer */
.site-footer {
  background: var(--section-deep);
  color: rgba(255,255,255,.78);
  padding-top: 72px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr .8fr .8fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
}
.footer-brand h4, .footer-top h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,.58);
  margin-bottom: 18px;
  max-width: 420px;
}
.foot-tag {
  display: inline-block;
  font-size: 13px;
  background: rgba(255,255,255,.08);
  border-radius: 999px;
  color: rgba(255,255,255,.82);
  padding: 6px 13px;
}
.footer-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-list a {
  color: rgba(255,255,255,.62);
  font-size: 14px;
  transition: color var(--ease), padding-left var(--ease);
}
.footer-list a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-contact {
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255,255,255,.62);
}
.footer-contact div {
  margin-bottom: 12px;
}
.brand-inline {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 17px;
  color: #fff;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 22px 0 28px;
}
.footer-bottom p {
  font-size: 14px;
  color: rgba(255,255,255,.44);
  text-align: center;
}
.footer-bottom a {
  color: rgba(255,255,255,.72);
}
.footer-bottom a:hover {
  color: #fff;
  text-decoration: underline;
}

/* responsive */
@media (max-width: 1023px) {
  .menu-toggle {
    display: flex;
  }
  .main-nav {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(320px, 88vw);
    background: #fff;
    color: var(--ink);
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    box-shadow: 12px 0 34px -24px rgba(0,0,0,.45);
    z-index: 20;
    transform: translateX(-102%);
    transition: transform 220ms ease;
  }
  body.nav-open .main-nav {
    transform: translateX(0);
  }
  body.nav-open .nav-overlay {
    display: block;
  }
  .nav-link {
    width: 100%;
    font-size: 16px;
    padding: 13px 8px;
    border-radius: 10px;
  }
  .nav-link:hover {
    background: var(--page-bg);
  }
  .nav-link::after {
    display: none;
  }
  .nav-cta {
    margin-left: 0;
    margin-top: 18px;
    width: 100%;
  }
  .nav-cta .btn-accent {
    width: 100%;
  }
  .hero-split {
    grid-template-columns: 1fr;
    gap: 34px;
  }
  .cat-hero {
    padding: 70px 0 72px;
  }
  .hero-visual img {
    min-height: 260px;
  }
  .supply-archive {
    grid-template-columns: 1fr;
  }
  .archive-feature {
    min-height: 340px;
  }
  .shipping-wrap {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .lead-grid {
    grid-template-columns: 1fr;
    gap: 38px;
  }
  .lead-info {
    position: static;
  }
  .process-panel {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}
@media (max-width: 767px) {
  .section-pad {
    padding-top: 64px;
    padding-bottom: 64px;
  }
  .topbar-inner {
    width: calc(100% - 30px);
  }
  .topbar-inner .site-domain {
    font-size: 12px;
  }
  .topbar-inner .right-text {
    display: none;
  }
  .header-inner {
    width: calc(100% - 28px);
    height: 68px;
  }
  .brand-line {
    gap: 8px;
  }
  .brand-mark {
    width: 34px;
    height: 34px;
  }
  .brand-name strong {
    font-size: 15px;
    max-width: 130px;
  }
  .brand-name span {
    display: none;
  }
  .kw-badge {
    padding: 3px 7px;
    font-size: 10px;
    margin-left: 0;
  }
  .container {
    width: calc(100% - 36px);
  }
  .section-head {
    display: block;
    margin-bottom: 30px;
  }
  .section-meta {
    margin-top: 10px;
  }
  .hero-proof {
    gap: 10px;
  }
  .scenario-list {
    grid-template-columns: 1fr;
  }
  .process-panel {
    grid-template-columns: 1fr;
  }
  .cat-go-grid {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .form-submit-line {
    flex-direction: column;
    align-items: stretch;
  }
  .form-submit-line .btn-accent {
    width: 100%;
  }
  .faq-item p {
    padding-right: 8px;
  }
  .archive-item {
    padding: 16px;
  }
  .feature-overlay .inner {
    padding: 22px;
  }
}
@media (max-width: 480px) {
  .cat-hero h1 {
    font-size: 38px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-note {
    flex-direction: column;
    align-items: flex-start;
  }
}
@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
  }
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
  .archive-feature img,
  .step-item,
  .cat-go-card,
  .scenario-card,
  .archive-item {
    transform: none !important;
  }
}