/* roulang page: index */
:root{
  --c-primary:#14403C;
  --c-primary-deep:#0C2A29;
  --c-primary-soft:#E4EDEA;
  --c-accent:#D96C3D;
  --c-accent-soft:#FBEDE5;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFEAE2;
  --c-line:#E3DDD3;
  --c-text:#1B1E1D;
  --c-text-2:#56605D;
  --c-text-3:#8A928F;
  --c-ok:#2F7A5A;
  --c-warn:#C8552E;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(27,30,29,.05),0 10px 24px -14px rgba(27,30,29,.14);
  --sh-2:0 2px 6px rgba(27,30,29,.07),0 20px 40px -20px rgba(27,30,29,.20);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --bs-primary:#14403C;
  --bs-body-bg:#F7F5F1;
  --bs-body-color:#1B1E1D;
  --bs-border-color:#E3DDD3;
  --bs-border-radius:14px;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--c-bg);color:var(--c-text);
  font-family:var(--font-sans);font-size:17px;line-height:1.85;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-family:var(--font-serif);margin:0;color:var(--c-text);letter-spacing:-.01em}
h1{font-size:42px;line-height:1.25;font-weight:700}
h2{font-size:28px;line-height:1.35;font-weight:700}
h3{font-size:20px;line-height:1.45;font-weight:600}
p{margin:0 0 1.15em}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease,transform .2s ease}
a:hover{color:var(--c-accent)}
img{max-width:100%;display:block}
button,input,textarea,select{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:var(--c-primary-soft);color:var(--c-primary-deep)}
:focus-visible{outline:3px solid rgba(217,108,61,.45);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}

/* ---------- 顶部活动条 ---------- */
.top-strip{background:var(--c-primary);color:rgba(255,255,255,.92);font-size:13px;line-height:1.4}
.top-strip__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px;padding-top:6px;padding-bottom:6px}
.top-strip__label{display:inline-flex;align-items:center;gap:8px;letter-spacing:.02em}
.top-strip__dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block}
.top-strip__right{display:flex;align-items:center;gap:18px}
.top-strip__cd{font-variant-numeric:tabular-nums;letter-spacing:.04em;color:#fff}
.top-strip a{color:rgba(255,255,255,.88);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.top-strip a:hover{color:#fff}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--c-bg);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-stuck{background:rgba(255,255,255,.96);border-bottom:1px solid var(--c-line);box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:28px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-primary);flex:0 0 auto}
.brand:hover{color:var(--c-primary)}
.brand__mark{width:34px;height:34px;flex:0 0 auto}
.brand__text{font-family:var(--font-serif);font-size:19px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-link-item{
  position:relative;font-size:15px;color:var(--c-text-2);padding:6px 0;font-weight:500;
}
.nav-link-item:hover{color:var(--c-primary)}
.nav-link-item::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--c-accent);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link-item:hover::after{transform:scaleX(1)}
.nav-link-item.is-active{color:var(--c-primary);font-weight:600}
.nav-link-item.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.badge-soft{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);font-size:12px;letter-spacing:.04em;
}
.badge-outline{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);color:var(--c-text-2);font-size:12px;letter-spacing:.04em;background:transparent;
}
.badge-accent{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-accent-soft);color:var(--c-accent);font-size:12px;letter-spacing:.04em;
}

/* 按钮 */
.btn-accent,.btn-ghost-line,.btn-primary-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-sm);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .2s ease;text-align:center;
}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:#C85F32;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-accent:active{transform:translateY(0)}
.btn-primary-line{border-color:var(--c-primary);color:var(--c-primary);background:transparent}
.btn-primary-line:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.btn-ghost-line{border-color:rgba(255,255,255,.5);color:#fff;background:transparent}
.btn-ghost-line:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn:disabled,.btn-accent:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

.nav-toggle{
  margin-left:auto;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:var(--c-surface);display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-primary);transition:transform .2s ease}
.mobile-nav{border-top:1px solid var(--c-line);background:var(--c-surface);box-shadow:var(--sh-1)}
.mobile-nav .container{padding-top:16px;padding-bottom:20px;display:flex;flex-direction:column;gap:4px}
.mobile-nav a.m-link{padding:12px 4px;font-size:16px;color:var(--c-text-2);border-bottom:1px solid var(--c-line)}
.mobile-nav a.m-link.is-active{color:var(--c-primary);font-weight:600}
.mobile-nav .btn-accent{margin-top:16px}

/* ---------- 通用区块 ---------- */
.section{padding:88px 0}
.section--alt{background:var(--c-surface-alt)}
.section--tight{padding-top:72px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{display:flex;align-items:baseline;gap:12px}
.sec-num{
  font-family:var(--font-serif);font-size:15px;color:var(--c-accent);
  letter-spacing:.12em;font-weight:700;
}
.section-sub{color:var(--c-text-2);font-size:15px;max-width:640px;margin-top:10px;line-height:1.75}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-accent);font-size:15px;font-weight:600}
.text-link:hover{color:#C85F32;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}

/* ---------- Hero ---------- */
.hero{padding:56px 0 0}
.hero__grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:56px;align-items:center}
.hero__copy{max-width:640px}
.hero__badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.hero h1{margin-bottom:20px}
.hero__sub{font-size:17px;color:var(--c-text-2);line-height:1.85;margin-bottom:30px;max-width:560px}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero__stats{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--c-line);padding-top:22px}
.hero__stat{padding-right:32px;margin-right:32px;border-right:1px solid var(--c-line)}
.hero__stat:last-child{border-right:0;margin-right:0;padding-right:0}
.hero__stat dt{font-size:13px;color:var(--c-text-3);margin-bottom:4px;letter-spacing:.03em}
.hero__stat dd{margin:0;font-family:var(--font-serif);font-size:24px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums}
.hero__figure{position:relative}
.hero__figure .img-wrap{aspect-ratio:16/10;border-radius:var(--r-lg);overflow:hidden;position:relative;background:var(--c-surface-alt)}
.hero__figure .img-wrap::after{content:"";position:absolute;inset:0;background:rgba(20,64,60,.08)}
.hero__figure img{width:100%;height:100%;object-fit:cover}
.hero__tag{
  position:absolute;right:-10px;bottom:-14px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:12px 18px;box-shadow:var(--sh-2);
}
.hero__tag b{display:block;font-family:var(--font-serif);font-size:18px;color:var(--c-primary)}
.hero__tag span{font-size:12px;color:var(--c-text-3);letter-spacing:.04em}
.hero__cloud{position:absolute;left:-40px;top:-46px;width:180px;height:180px;opacity:.35;pointer-events:none}

/* ---------- 合集目录 ---------- */
.collection-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.coll-card{
  position:relative;display:flex;flex-direction:column;gap:10px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-md);padding:22px 20px 20px;
  transition:all .22s ease;overflow:hidden;
}
.coll-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-accent);
  transform:scaleY(0);transform-origin:top;transition:transform .25s ease;
}
.coll-card:hover{transform:translateY(-2px);border-color:rgba(20,64,60,.25);box-shadow:var(--sh-2);color:var(--c-text)}
.coll-card:hover::before{transform:scaleY(1)}
.coll-card__num{font-family:var(--font-serif);font-size:32px;font-weight:700;color:var(--c-primary);line-height:1;transition:color .22s ease}
.coll-card:hover .coll-card__num{color:var(--c-accent)}
.coll-card h3{font-size:18px}
.coll-card__desc{font-size:14px;color:var(--c-text-2);line-height:1.7;flex:1 1 auto}
.coll-card__foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:4px}

/* ---------- 精选条目 ---------- */
.featured-grid{display:grid;grid-template-columns:1.72fr 1fr;gap:24px;align-items:start}
.big-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;transition:all .22s ease;display:block}
.big-card:hover{transform:translateY(-2px);border-color:rgba(20,64,60,.25);box-shadow:var(--sh-2);color:var(--c-text)}
.big-card .img-wrap{aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-alt)}
.big-card .img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out}
.big-card:hover .img-wrap img{transform:scale(1.03)}
.big-card__body{padding:28px}
.big-card__body h3{font-size:24px;margin:14px 0 12px}
.big-card__body p{color:var(--c-text-2);font-size:15px;line-height:1.75;margin-bottom:16px}
.mini-list{display:flex;flex-direction:column;gap:16px}
.mini-item{
  display:flex;gap:14px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:16px;transition:all .22s ease;
}
.mini-item:hover{transform:translateY(-2px);border-color:rgba(20,64,60,.25);box-shadow:var(--sh-1);color:var(--c-text)}
.mini-item .img-wrap{flex:0 0 104px;width:104px;aspect-ratio:4/3;border-radius:var(--r-sm);overflow:hidden;background:var(--c-surface-alt)}
.mini-item .img-wrap img{width:100%;height:100%;object-fit:cover}
.mini-item h3{font-size:16px;line-height:1.5;margin-bottom:6px}
.mini-item p{font-size:13px;color:var(--c-text-3);margin:0;line-height:1.6}
.mini-item__meta{font-size:12px;color:var(--c-text-3);margin-top:8px;letter-spacing:.02em}

/* 标签 */
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.04em;background:var(--c-primary-soft);color:var(--c-primary);
}
.tag--accent{background:var(--c-accent-soft);color:var(--c-accent)}

/* ---------- CMS 列表 ---------- */
.cms-latest{min-height:220px}
.cms-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.cms-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:22px;display:flex;flex-direction:column;gap:10px;transition:all .22s ease;
}
.cms-item:hover{transform:translateY(-2px);border-color:rgba(20,64,60,.25);box-shadow:var(--sh-1)}
.cms-item__title{font-size:18px;line-height:1.5}
.cms-item__title a{color:var(--c-text)}
.cms-item__title a:hover{color:var(--c-accent)}
.cms-item__excerpt{
  font-size:15px;color:var(--c-text-2);line-height:1.75;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-item__meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:8px;border-top:1px solid var(--c-line)}
.cms-item__meta time{font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums}
.cms-empty{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-md);text-align:center;padding:32px;
}
.cms-empty svg{opacity:.3}
.cms-empty p{margin:0;color:var(--c-text-2);font-size:15px}

/* ---------- 相关推荐 ---------- */
.rec-scroll{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(260px,1fr);gap:24px;overflow-x:auto;
  padding-bottom:8px;scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none;
}
.rec-scroll::-webkit-scrollbar{display:none}
.rec-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;
  scroll-snap-align:start;display:flex;flex-direction:column;min-height:300px;transition:all .22s ease;
}
.rec-card:hover{transform:translateY(-2px);border-color:rgba(20,64,60,.25);box-shadow:var(--sh-2);color:var(--c-text)}
.rec-card .img-wrap{aspect-ratio:16/10;overflow:hidden;background:var(--c-surface-alt)}
.rec-card .img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out}
.rec-card:hover .img-wrap img{transform:scale(1.03)}
.rec-card__body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto}
.rec-card__body h3{font-size:17px;line-height:1.5}
.rec-card__body p{font-size:14px;color:var(--c-text-2);line-height:1.7;margin:0}
.rec-card__foot{margin-top:auto;font-size:12px;color:var(--c-text-3);font-variant-numeric:tabular-nums}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--c-primary-soft);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:40px 0;flex-wrap:wrap}
.cta-band h2{font-size:24px;margin-bottom:8px}
.cta-band p{margin:0;color:var(--c-text-2);font-size:15px}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap}
.toast-note{
  position:fixed;left:50%;transform:translateX(-50%) translateY(20px);bottom:32px;
  background:var(--c-primary-deep);color:#fff;padding:12px 22px;border-radius:var(--r-sm);
  font-size:14px;opacity:0;pointer-events:none;transition:all .25s ease;z-index:2000;
}
.toast-note.is-show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:840px}
.faq .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-line);border-radius:0}
.faq .accordion-button{
  background:transparent;border:0;box-shadow:none;padding:22px 44px 22px 0;position:relative;
  font-size:16px;font-weight:600;color:var(--c-text);line-height:1.6;font-family:var(--font-sans);
}
.faq .accordion-button:not(.collapsed){color:var(--c-primary);background:transparent;box-shadow:none}
.faq .accordion-button::before{
  content:"";position:absolute;left:-16px;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:24px;background:var(--c-accent);transition:transform .18s ease;
}
.faq .accordion-button:not(.collapsed)::before{transform:translateY(-50%) scaleY(1)}
.faq .accordion-button::after{
  content:"+";background-image:none;width:auto;height:auto;margin-left:auto;position:absolute;right:8px;
  font-size:22px;line-height:1;color:var(--c-accent);font-weight:400;
  display:flex;align-items:center;justify-content:center;transition:transform .18s ease;
}
.faq .accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg)}
.faq .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq .accordion-body{padding:0 60px 24px 0;font-size:15px;color:var(--c-text-2);line-height:1.8;max-width:800px}

/* ---------- 订阅表单 ---------- */
.form-row{display:flex;gap:14px;align-items:flex-end;flex-wrap:wrap}
.form-field{flex:1 1 260px;display:flex;flex-direction:column;gap:8px}
.form-field label{font-size:13px;color:var(--c-text-2);letter-spacing:.03em}
.form-control-x{
  height:48px;border:1px solid var(--c-line);border-radius:var(--r-sm);padding:0 16px;
  background:var(--c-surface);color:var(--c-text);font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control-x:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(20,64,60,.14)}
.form-control-x.is-error{border-color:var(--c-warn)}
.form-hint{font-size:13px;color:var(--c-warn)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary-deep);color:rgba(255,255,255,.86);padding-top:0}
.site-footer .footer-line{height:1px;background:var(--c-accent);opacity:.75}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 48px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:16px}
.footer-brand .brand__text{color:#fff;font-size:18px}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:300px}
.footer-col h4{font-family:var(--font-sans);font-size:13px;letter-spacing:.06em;color:rgba(255,255,255,.6);font-weight:600;margin-bottom:18px}
.footer-col li{margin-bottom:12px}
.footer-col a{font-size:15px;color:rgba(255,255,255,.84);display:inline-block;transition:all .2s ease}
.footer-col a:hover{color:var(--c-accent);transform:translateX(2px)}
.footer-col p{font-size:14px;color:rgba(255,255,255,.66);line-height:1.8;margin:0 0 12px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0}
.footer-bottom__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6)}
.footer-bottom__links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--c-accent)}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .collection-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:991.98px){
  h1{font-size:32px}
  h2{font-size:24px}
  .header-inner{min-height:60px}
  .hero{padding-top:32px}
  .hero__grid{grid-template-columns:1fr;gap:36px}
  .hero__copy{max-width:none}
  .hero__figure .img-wrap{aspect-ratio:16/10;max-height:420px}
  .hero__tag{right:12px;bottom:12px}
  .hero__cloud{display:none}
  .featured-grid{grid-template-columns:1fr}
  .section{padding:64px 0}
  .section--tight{padding-top:48px}
  .cms-list{grid-template-columns:1fr}
  .cta-band__inner{padding:32px 0}
}
@media (max-width:767.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 36px}
  .hero__stats{gap:0}
  .hero__stat{padding-right:20px;margin-right:20px}
  .hero__stat dd{font-size:20px}
}
@media (max-width:575.98px){
  body{font-size:16px}
  h1{font-size:28px}
  h2{font-size:22px}
  h3{font-size:18px}
  .container{padding-left:20px;padding-right:20px}
  .section{padding:48px 0}
  .section-head{margin-bottom:28px}
  .collection-grid{grid-template-columns:1fr}
  .mini-item .img-wrap{flex:0 0 84px;width:84px}
  .footer-grid{grid-template-columns:1fr}
  .hero__cta .btn-accent,.hero__cta .btn-primary-line{width:100%}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn-accent,.cta-band__actions .btn-primary-line{flex:1 1 auto}
  .faq .accordion-button{font-size:15px;padding-right:36px}
  .faq .accordion-body{padding-right:0}
}

/* roulang page: article */
:root{
  --c-primary:#14403C;
  --c-primary-deep:#0C2A29;
  --c-primary-soft:#E4EDEA;
  --c-accent:#D96C3D;
  --c-accent-soft:#FBEDE5;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFEAE2;
  --c-line:#E3DDD3;
  --c-text:#1B1E1D;
  --c-text-2:#56605D;
  --c-text-3:#8A928F;
  --c-ok:#2F7A5A;
  --c-warn:#C8552E;
  --r-lg:20px; --r-md:14px; --r-sm:10px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(27,30,29,.05), 0 10px 24px -14px rgba(27,30,29,.14);
  --sh-2:0 2px 6px rgba(27,30,29,.07), 0 20px 40px -20px rgba(27,30,29,.20);
  --f-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --f-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --bs-primary:#14403C;
  --bs-body-bg:#F7F5F1;
  --bs-body-color:#1B1E1D;
  --bs-border-color:#E3DDD3;
  --bs-border-radius:10px;
  --bs-font-sans-serif:var(--f-sans);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--c-bg);color:var(--c-text);
  font-family:var(--f-sans);font-size:17px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-accent);}
button{font-family:inherit;}
h1,h2,h3,h4{font-family:var(--f-serif);color:var(--c-primary);margin:0;}
p{margin:0 0 1.15em;}
ul,ol{margin:0 0 1.15em;padding-left:1.3em;}
:focus-visible{outline:3px solid rgba(217,108,61,.4);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%;}

/* ============ 顶部活动条 ============ */
.topbar{background:var(--c-primary);color:#fff;min-height:38px;font-size:13px;display:flex;align-items:center;}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:6px;padding-bottom:6px;}
.topbar__tag{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border-radius:var(--r-pill);padding:3px 12px;letter-spacing:.04em;}
.topbar__tag i{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block;}
.topbar__right{display:flex;align-items:center;gap:18px;}
.topbar__count{font-variant-numeric:tabular-nums;color:rgba(255,255,255,.82);}
.topbar__count b{color:#fff;font-weight:600;}
.topbar__link{color:#fff;border-bottom:1px solid rgba(255,255,255,.5);}
.topbar__link:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.96);border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand__text{font-family:var(--f-serif);font-size:19px;font-weight:700;color:var(--c-primary);letter-spacing:.01em;}
.main-nav{display:flex;align-items:center;gap:28px;}
.nav-link-item{font-size:15px;color:var(--c-text-2);padding:6px 0;position:relative;}
.nav-link-item::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;}
.nav-link-item:hover{color:var(--c-primary);}
.nav-link-item:hover::after,.nav-link-item.is-active::after{transform:scaleX(1);}
.nav-link-item.is-active{color:var(--c-primary);font-weight:600;}
.nav-side{display:flex;align-items:center;gap:14px;}
.badge-status{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);background:var(--c-primary-soft);color:var(--c-primary);font-size:12px;letter-spacing:.04em;white-space:nowrap;}
.btn-main{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:var(--r-sm);background:var(--c-accent);color:#fff;font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,background .2s ease;}
.btn-main:hover{background:#c85f33;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-sm);border:1px solid var(--c-primary);color:var(--c-primary);background:transparent;font-size:15px;font-weight:600;transition:background .2s ease,transform .2s ease;}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary);transform:translateY(-1px);}
.btn-light-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.45);color:#fff;background:transparent;font-size:15px;font-weight:600;transition:background .2s ease;}
.btn-light-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-sm);background:#fff;align-items:center;justify-content:center;color:var(--c-primary);}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-panel{display:none;border-top:1px solid var(--c-line);background:#fff;}
.mobile-panel.is-open{display:block;}
.mobile-panel ul{list-style:none;margin:0;padding:12px 0;}
.mobile-panel li a{display:block;padding:11px 0;font-size:16px;color:var(--c-text-2);}
.mobile-panel li a.is-active{color:var(--c-primary);font-weight:600;}
.mobile-panel .btn-main{width:100%;margin:8px 0 16px;}

/* ============ 面包屑 ============ */
.crumb-wrap{background:var(--c-surface-alt);border-bottom:1px solid var(--c-line);}
.breadcrumb-nav{padding:14px 0;}
.breadcrumb-nav ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:0;font-size:14px;color:var(--c-text-3);}
.breadcrumb-nav li{display:flex;align-items:center;gap:8px;}
.breadcrumb-nav li+li::before{content:"›";color:var(--c-text-3);}
.breadcrumb-nav a{color:var(--c-text-2);}
.breadcrumb-nav a:hover{color:var(--c-accent);}
.breadcrumb-nav [aria-current="page"]{color:var(--c-text);}

/* ============ 文章头 ============ */
.article-head{padding:52px 0 32px;background:var(--c-bg);}
.article-head__inner{max-width:860px;}
.pill-cat{display:inline-flex;align-items:center;height:26px;padding:0 14px;border-radius:var(--r-pill);background:var(--c-accent-soft);color:var(--c-accent);font-size:12px;letter-spacing:.04em;font-weight:600;}
.article-title{font-size:42px;line-height:1.25;letter-spacing:-.01em;font-weight:700;margin:18px 0 0;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:22px;font-size:13px;color:var(--c-text-3);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--c-line);}
.icon-btn{display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:#fff;color:var(--c-text-2);font-size:13px;transition:border-color .2s ease,color .2s ease,transform .2s ease;}
.icon-btn:hover{border-color:rgba(20,64,60,.35);color:var(--c-primary);transform:translateY(-1px);}
.article-cover{margin-top:34px;border-radius:var(--r-lg);overflow:hidden;background:var(--c-surface-alt);box-shadow:var(--sh-1);}
.article-cover img{width:100%;aspect-ratio:21/9;object-fit:cover;}

/* ============ 正文布局 ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;padding:24px 0 8px;align-items:start;}
.article-body{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:44px 48px;box-shadow:var(--sh-1);font-size:17px;line-height:1.85;color:var(--c-text);}
.article-body>*:first-child{margin-top:0;}
.article-body h2{font-size:28px;line-height:1.35;margin:44px 0 18px;padding-left:14px;border-left:3px solid var(--c-accent);}
.article-body h3{font-size:20px;line-height:1.45;font-weight:600;margin:32px 0 14px;color:var(--c-primary);}
.article-body p{margin:0 0 1.15em;text-align:left;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em;}
.article-body li{margin-bottom:.5em;}
.article-body blockquote{margin:24px 0;padding:18px 24px;background:var(--c-surface-alt);border-left:3px solid var(--c-primary);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--c-text-2);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-md);margin:24px 0 8px;background:var(--c-surface-alt);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:14px;color:var(--c-text-3);text-align:center;margin-top:8px;}
.article-body pre{background:var(--c-surface-alt);border:1px solid var(--c-line);border-radius:var(--r-md);padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;background:var(--c-surface-alt);padding:2px 6px;border-radius:6px;}
.article-body pre code{background:none;padding:0;}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:36px 0;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;}
.article-body thead th{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--c-line);}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(20,64,60,.3);}
.article-body a:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);}

/* ============ 侧栏 ============ */
.sidebar{position:sticky;top:100px;display:flex;flex-direction:column;gap:24px;}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1);}
.side-card h4{font-size:15px;letter-spacing:.04em;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h4::before{content:"";width:3px;height:14px;background:var(--c-accent);border-radius:2px;}
.toc-list{list-style:none;margin:0;padding:0;font-size:14px;line-height:1.6;}
.toc-list li{margin-bottom:8px;}
.toc-list li.toc-h3{padding-left:14px;font-size:13.5px;}
.toc-list a{color:var(--c-text-2);display:block;padding:2px 0;}
.toc-list a:hover,.toc-list a.is-current{color:var(--c-accent);font-weight:600;}
.toc-empty{font-size:13.5px;color:var(--c-text-3);}
.mini-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--c-line);}
.mini-item:last-child{border-bottom:0;padding-bottom:0;}
.mini-item img{width:64px;height:46px;object-fit:cover;border-radius:8px;background:var(--c-surface-alt);flex:0 0 auto;}
.mini-item strong{display:block;font-size:14px;font-weight:600;color:var(--c-text);line-height:1.5;font-family:var(--f-sans);}
.mini-item span{font-size:12px;color:var(--c-text-3);}
.side-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-accent);margin-top:12px;}
.side-link:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:4px;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section--alt{background:var(--c-surface-alt);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:38px;flex-wrap:wrap;}
.section-head h2{font-size:28px;line-height:1.35;}
.section-head .sec-num{display:block;font-family:var(--f-serif);font-size:14px;color:var(--c-accent);letter-spacing:.12em;margin-bottom:8px;}
.section-head p{margin:10px 0 0;color:var(--c-text-2);font-size:15.5px;max-width:620px;}
.text-link{font-size:15px;color:var(--c-accent);font-weight:600;}
.text-link:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:4px;}

/* 相关推荐卡片 */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.reco-card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;}
.reco-card:hover{transform:translateY(-3px);border-color:rgba(20,64,60,.25);box-shadow:var(--sh-2);}
.reco-card:hover img{transform:scale(1.03);}
.reco-card__media{aspect-ratio:16/10;overflow:hidden;background:var(--c-surface-alt);}
.reco-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out;}
.reco-card__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.reco-card__body h3{font-size:19px;line-height:1.45;font-weight:600;}
.reco-card__body p{font-size:15px;color:var(--c-text-2);line-height:1.75;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);background:var(--c-primary-soft);color:var(--c-primary);font-size:12px;letter-spacing:.04em;}
.tag--accent{background:var(--c-accent-soft);color:var(--c-accent);}
.tag--line{background:transparent;border:1px solid var(--c-line);color:var(--c-text-2);}
.card-more{font-size:14px;font-weight:600;color:var(--c-accent);margin-top:auto;display:inline-flex;align-items:center;gap:6px;}

/* CTA 条 */
.cta-band{background:var(--c-primary-soft);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band h2{font-size:24px;line-height:1.4;}
.cta-band p{margin:10px 0 0;color:var(--c-text-2);font-size:15px;}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.toast-tip{position:fixed;left:50%;bottom:36px;transform:translate(-50%,20px);background:var(--c-primary-deep);color:#fff;font-size:14px;padding:10px 22px;border-radius:var(--r-pill);opacity:0;pointer-events:none;transition:opacity .25s ease,transform .25s ease;z-index:2000;}
.toast-tip.is-show{opacity:1;transform:translate(-50%,0);}

/* FAQ */
.faq-wrap{max-width:800px;}
.accordion-item{border:0;border-bottom:1px solid var(--c-line);background:transparent;}
.accordion-button{background:transparent;box-shadow:none;font-family:var(--f-sans);font-size:16px;font-weight:600;color:var(--c-text);padding:20px 0 20px 16px;border-radius:0;position:relative;}
.accordion-button::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:transparent;border-radius:2px;transition:background .18s ease;}
.accordion-button:not(.collapsed){color:var(--c-primary);background:rgba(239,234,226,.45);}
.accordion-button:not(.collapsed)::before{background:var(--c-accent);}
.accordion-button:focus{box-shadow:none;}
.accordion-button::after{background-image:none;content:"+";font-size:20px;line-height:1;color:var(--c-accent);width:24px;height:24px;display:flex;align-items:center;justify-content:center;transform:none;transition:transform .18s ease;font-family:var(--f-sans);}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg);}
.accordion-body{padding:0 16px 22px;font-size:15px;line-height:1.8;color:var(--c-text-2);}

/* 空态 / 未找到 */
.empty-state{text-align:center;padding:70px 24px;border:1px dashed var(--c-line);border-radius:var(--r-lg);background:var(--c-surface);}
.empty-state svg{opacity:.3;margin-bottom:18px;}
.empty-state p{color:var(--c-text-2);font-size:15px;margin-bottom:18px;}

/* 页脚 */
.site-footer{background:var(--c-primary-deep);color:rgba(255,255,255,.82);margin-top:0;}
.footer-line{height:1px;background:var(--c-accent);opacity:.85;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.brand__text{font-family:var(--f-serif);font-size:18px;font-weight:700;color:#fff;}
.footer-desc{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.68);margin:0;}
.footer-col h4{font-size:13px;letter-spacing:.05em;color:rgba(255,255,255,.62);font-weight:600;margin-bottom:16px;font-family:var(--f-sans);}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:15px;color:rgba(255,255,255,.86);display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:var(--c-accent);transform:translateX(2px);}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);margin:0 0 10px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);}
.footer-bottom__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:18px 0;font-size:13px;color:rgba(255,255,255,.6);}
.footer-bottom__links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom__links a{color:rgba(255,255,255,.7);}
.footer-bottom__links a:hover{color:var(--c-accent);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr) 270px;gap:36px;}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:32px;}
}
@media (max-width:991.98px){
  .main-nav,.nav-side{display:none;}
  .nav-toggle{display:inline-flex;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px;}
  .sidebar{position:static;top:auto;}
  .article-body{padding:32px 26px;}
  .article-title{font-size:32px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .nav-inner{height:64px;}
}
@media (max-width:767.98px){
  .section{padding:56px 0;}
  .article-head{padding:34px 0 24px;}
  .article-title{font-size:28px;}
  .article-body{font-size:16px;padding:26px 20px;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18px;}
  .cta-band{padding:28px 22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 36px;}
  .container{padding-left:20px;padding-right:20px;}
}
@media (max-width:575.98px){
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;}
  .topbar__right .topbar__count{display:none;}
  .breadcrumb-nav ol{font-size:13px;}
  .article-meta{gap:10px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#14403C;
  --c-primary-deep:#0C2A29;
  --c-primary-soft:#E4EDEA;
  --c-accent:#D96C3D;
  --c-accent-soft:#FBEDE5;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFEAE2;
  --c-line:#E3DDD3;
  --c-text:#1B1E1D;
  --c-text-2:#56605D;
  --c-text-3:#8A928F;
  --c-ok:#2F7A5A;
  --c-warn:#C8552E;

  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --r-pill:999px;

  --sh-1:0 1px 2px rgba(27,30,29,.05), 0 10px 24px -14px rgba(27,30,29,.14);
  --sh-2:0 2px 6px rgba(27,30,29,.07), 0 20px 40px -20px rgba(27,30,29,.20);

  --s-1:8px; --s-2:12px; --s-3:16px; --s-4:24px; --s-5:32px; --s-6:48px; --s-7:64px; --s-8:88px;

  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;

  --bs-primary:#14403C;
  --bs-body-bg:#F7F5F1;
  --bs-body-color:#1B1E1D;
  --bs-border-color:#E3DDD3;
  --bs-border-radius:10px;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --bs-link-color:#14403C;
  --bs-link-hover-color:#D96C3D;
  --bs-body-font-size:16px;
}

*,*::before,*::after{ box-sizing:border-box; }

html{ -webkit-text-size-adjust:100%; }

body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}

img{ max-width:100%; display:block; }

a{ color:var(--c-primary); text-decoration:none; transition:color .18s ease, border-color .18s ease; }
a:hover{ color:var(--c-accent); text-decoration:underline; text-underline-offset:4px; text-decoration-thickness:2px; }
a:focus-visible,
button:focus-visible{ outline:3px solid rgba(217,108,61,.35); outline-offset:2px; border-radius:6px; }

h1,h2,h3,h4{
  font-family:var(--font-serif);
  color:var(--c-text);
  margin:0;
  letter-spacing:-.01em;
}
h1{ font-size:42px; line-height:1.25; font-weight:700; }
h2{ font-size:28px; line-height:1.35; font-weight:700; }
h3{ font-size:20px; line-height:1.45; font-weight:600; }
p{ margin:0 0 1.15em; }
p:last-child{ margin-bottom:0; }

.container,
.container-sm,.container-md,.container-lg,.container-xl,.container-xxl{
  width:100%;
  max-width:1200px;
  padding-left:24px;
  padding-right:24px;
  margin-left:auto;
  margin-right:auto;
}
@media (min-width:1400px){
  .container,.container-lg,.container-xl{ max-width:1200px; }
}

/* ============ 顶部活动条 ============ */
.topbar{
  background:var(--c-primary);
  color:rgba(255,255,255,.92);
  font-size:13px;
  line-height:1.4;
}
.topbar__inner{
  min-height:38px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:6px;
  padding-bottom:6px;
}
.topbar__tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.18);
  color:#fff;
  padding:3px 12px;
  border-radius:var(--r-pill);
  letter-spacing:.04em;
  font-size:12px;
}
.topbar__tag i{
  width:6px; height:6px; border-radius:50%; background:var(--c-accent); display:inline-block;
}
.topbar__right{ display:flex; align-items:center; gap:16px; }
.countdown{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-variant-numeric:tabular-nums;
}
.countdown__label{ color:rgba(255,255,255,.7); }
.countdown__time{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  background:rgba(0,0,0,.18);
  border-radius:6px;
  padding:2px 8px;
  letter-spacing:.06em;
  color:#fff;
}
.topbar__link{ color:#F6C7AF; font-size:13px; }
.topbar__link:hover{ color:#fff; }

/* ============ 主导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.9);
  border-bottom:1px solid transparent;
  transition:background .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);
  box-shadow:var(--sh-1);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:32px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  text-decoration:none;
}
.brand:hover{ text-decoration:none; }
.brand__mark{ flex-shrink:0; }
.brand__text{
  font-family:var(--font-serif);
  font-weight:700;
  font-size:19px;
  letter-spacing:.01em;
  color:var(--c-primary);
  white-space:nowrap;
}
.brand:hover .brand__text{ color:var(--c-primary); }

.main-nav{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:auto;
}
.nav-link-item{
  position:relative;
  font-size:15px;
  color:var(--c-text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link-item:hover{ color:var(--c-primary); text-decoration:none; }
.nav-link-item.is-active{
  color:var(--c-primary);
  font-weight:600;
}
.nav-link-item.is-active::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:-2px;
  height:2px;
  background:var(--c-accent);
  border-radius:2px;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.badge-status{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:12px;
  letter-spacing:.04em;
  white-space:nowrap;
}

/* 按钮 */
.btn-accent,
.btn-outline-primary-soft,
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  font-family:var(--font-sans);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background-color .18s ease, color .18s ease, border-color .18s ease;
  text-decoration:none;
  white-space:nowrap;
}
.btn-accent{
  background:var(--c-accent);
  color:#fff;
  border-color:var(--c-accent);
}
.btn-accent:hover{
  background:#C85F33;
  border-color:#C85F33;
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh-1);
  text-decoration:none;
}
.btn-accent:active{ transform:translateY(0); }
.btn-outline-primary-soft{
  background:transparent;
  color:var(--c-primary);
  border-color:rgba(20,64,60,.35);
}
.btn-outline-primary-soft:hover{
  background:var(--c-primary-soft);
  border-color:var(--c-primary);
  color:var(--c-primary);
  transform:translateY(-1px);
  text-decoration:none;
}
.btn-ghost{
  background:transparent;
  color:var(--c-primary);
  border-color:rgba(20,64,60,.25);
}
.btn-ghost:hover{ background:rgba(255,255,255,.7); color:var(--c-primary); text-decoration:none; }
.btn-lg{ height:52px; padding:0 32px; font-size:16px; }

.nav-toggle{
  margin-left:auto;
  width:44px; height:44px;
  border-radius:var(--r-sm);
  border:1px solid var(--c-line);
  background:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--c-primary);
}
.mobile-nav{
  display:flex;
  flex-direction:column;
  gap:4px;
  padding-top:8px;
  padding-bottom:20px;
  border-top:1px solid var(--c-line);
}
.mobile-nav a{
  padding:12px 4px;
  font-size:16px;
  color:var(--c-text-2);
  border-bottom:1px solid var(--c-line);
}
.mobile-nav a.is-active{ color:var(--c-primary); font-weight:600; }
.mobile-nav .btn-accent{ margin-top:16px; width:100%; border-bottom:none; color:#fff; }

/* ============ 页头 ============ */
.page-head{
  padding:40px 0 8px;
  background:linear-gradient(180deg, rgba(228,237,234,.55) 0%, rgba(247,245,241,0) 100%);
}
.breadcrumb-nav ol{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:0;
  margin:0 0 20px;
  font-size:14px;
  color:var(--c-text-3);
}
.breadcrumb-nav li{ display:inline-flex; align-items:center; gap:8px; }
.breadcrumb-nav li + li::before{
  content:"›";
  color:var(--c-text-3);
  font-size:14px;
}
.breadcrumb-nav a{ color:var(--c-text-2); }
.breadcrumb-nav a:hover{ color:var(--c-accent); }
.breadcrumb-nav [aria-current="page"]{ color:var(--c-text); }

.page-head__grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:32px;
  align-items:end;
  padding-bottom:34px;
  border-bottom:1px solid var(--c-line);
}
.page-head__eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--c-accent-soft);
  color:var(--c-accent);
  font-size:12px;
  letter-spacing:.04em;
  margin-bottom:16px;
}
.page-head h1{ max-width:760px; }
.page-head__lead{
  margin-top:14px;
  max-width:640px;
  color:var(--c-text-2);
  font-size:17px;
}
.page-head__tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  justify-content:flex-end;
  max-width:360px;
}
.tag-pill{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid var(--c-line);
  color:var(--c-text-2);
  font-size:12px;
  letter-spacing:.04em;
  white-space:nowrap;
  transition:border-color .18s ease, color .18s ease, background-color .18s ease;
}
a.tag-pill:hover{
  border-color:rgba(20,64,60,.35);
  color:var(--c-primary);
  background:var(--c-primary-soft);
  text-decoration:none;
}

/* ============ 主体布局 ============ */
.main-layout{
  display:block;
  padding-top:56px;
  padding-bottom:88px;
}
@media (min-width:992px){
  .main-layout{
    display:grid;
    grid-template-columns:240px minmax(0,1fr);
    gap:48px;
    align-items:start;
  }
}

/* 锚点目录 */
.anchor-col{ margin-bottom:32px; }
@media (min-width:992px){
  .anchor-col{ margin-bottom:0; position:sticky; top:104px; }
}
.anchor-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:20px;
  box-shadow:var(--sh-1);
}
.anchor-card__title{
  font-size:13px;
  letter-spacing:.05em;
  color:var(--c-text-3);
  margin-bottom:14px;
  font-family:var(--font-sans);
  font-weight:600;
}
.anchor-list{
  list-style:none;
  padding:0;
  margin:0;
  display:flex;
  flex-direction:column;
  gap:2px;
}
.anchor-list a{
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:9px 10px 9px 12px;
  border-left:2px solid transparent;
  border-radius:0 8px 8px 0;
  color:var(--c-text-2);
  font-size:14px;
  line-height:1.5;
  transition:background-color .18s ease, border-color .18s ease, color .18s ease;
}
.anchor-list a:hover,
.anchor-list a.is-current{
  background:var(--c-primary-soft);
  border-left-color:var(--c-accent);
  color:var(--c-primary);
  text-decoration:none;
}
.anchor-list .num{
  font-family:"SFMono-Regular",Consolas,Menlo,monospace;
  font-size:12px;
  color:var(--c-accent);
  letter-spacing:.04em;
}
.anchor-card__cta{
  margin-top:18px;
  width:100%;
  height:44px;
  padding:0 16px;
}
@media (max-width:991px){
  .anchor-list{ flex-direction:row; overflow-x:auto; gap:8px; padding-bottom:4px; -webkit-overflow-scrolling:touch; }
  .anchor-list li{ flex:0 0 auto; }
  .anchor-list a{ border-left:none; border:1px solid var(--c-line); border-radius:var(--r-pill); padding:8px 14px; background:#fff; }
  .anchor-list a.is-current{ border-color:var(--c-primary); }
  .anchor-card__cta{ margin-top:14px; }
}

/* 内容分区 */
.content-section{ margin-bottom:64px; }
.content-section:last-child{ margin-bottom:0; }
.section-head{
  display:flex;
  align-items:baseline;
  gap:14px;
  margin-bottom:8px;
}
.section-head .section-num{
  font-family:var(--font-serif);
  font-size:15px;
  color:var(--c-accent);
  letter-spacing:.06em;
}
.section-intro{
  color:var(--c-text-2);
  font-size:16px;
  max-width:680px;
  margin:0 0 28px;
  padding-left:2px;
}

.card-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
}
@media (min-width:768px){
  .card-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}

.entry-card{
  display:flex;
  flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .22s ease-out, box-shadow .22s ease-out, border-color .22s ease-out;
}
.entry-card:hover,
.entry-card:focus-within{
  transform:translateY(-2px);
  border-color:rgba(20,64,60,.25);
  box-shadow:var(--sh-2);
}
.entry-card__media{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--c-surface-alt);
}
.entry-card__media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .22s ease-out;
}
.entry-card:hover .entry-card__media img{ transform:scale(1.03); }
.entry-card__body{
  padding:20px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.entry-card h3{
  font-size:19px;
  margin-bottom:10px;
}
.entry-card h3 a{ color:var(--c-text); }
.entry-card h3 a:hover{ color:var(--c-primary); text-decoration:none; }
.entry-card__desc{
  color:var(--c-text-2);
  font-size:15px;
  line-height:1.75;
  margin:0 0 16px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.entry-card__tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:16px;
}
.tag-soft{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:var(--r-pill);
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:12px;
  letter-spacing:.02em;
  white-space:nowrap;
}
.tag-soft--accent{
  background:var(--c-accent-soft);
  color:var(--c-accent);
}
.entry-card__link{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
}
.entry-card__link:hover{ color:var(--c-accent); }
.entry-card__link svg{ transition:transform .2s ease; }
.entry-card__link:hover svg{ transform:translateX(3px); }

/* 提示条 */
.notice-strip{
  display:flex;
  gap:14px;
  align-items:flex-start;
  background:var(--c-surface-alt);
  border:1px solid var(--c-line);
  border-left:3px solid var(--c-accent);
  border-radius:var(--r-sm);
  padding:18px 20px;
  margin-bottom:56px;
  color:var(--c-text-2);
  font-size:15px;
  line-height:1.75;
}
.notice-strip strong{ color:var(--c-text); font-weight:600; }
.notice-strip svg{ flex-shrink:0; margin-top:4px; color:var(--c-accent); }

/* ============ 相关分类 ============ */
.related-section{
  background:var(--c-surface-alt);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  padding:72px 0;
}
.related-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
  margin-top:32px;
}
@media (min-width:768px){
  .related-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}
.related-card{
  display:flex;
  gap:20px;
  align-items:center;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:20px;
  transition:transform .22s ease-out, border-color .22s ease-out, box-shadow .22s ease-out;
}
.related-card:hover{
  transform:translateY(-2px);
  border-color:rgba(20,64,60,.25);
  box-shadow:var(--sh-2);
  text-decoration:none;
}
.related-card__media{
  width:120px;
  flex-shrink:0;
  aspect-ratio:16/10;
  border-radius:var(--r-sm);
  overflow:hidden;
  background:var(--c-surface-alt);
}
.related-card__media img{ width:100%; height:100%; object-fit:cover; }
.related-card h3{ font-size:17px; margin-bottom:6px; color:var(--c-text); }
.related-card p{ font-size:14px; color:var(--c-text-2); line-height:1.7; }

/* ============ FAQ ============ */
.faq-section{ padding:72px 0; }
.faq-list{ max-width:800px; margin-top:28px; }
.faq-item{ border-bottom:1px solid var(--c-line); }
.faq-item:first-child{ border-top:1px solid var(--c-line); }
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 4px 22px 0;
  background:none;
  border:none;
  border-left:3px solid transparent;
  padding-left:0;
  text-align:left;
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  cursor:pointer;
  transition:color .18s ease, border-color .18s ease, padding-left .18s ease;
}
.faq-question:hover{ color:var(--c-primary); }
.faq-question[aria-expanded="true"]{
  border-left-color:var(--c-accent);
  padding-left:16px;
  color:var(--c-primary);
}
.faq-icon{
  flex-shrink:0;
  width:24px; height:24px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--c-accent);
  transition:transform .18s ease;
}
.faq-question[aria-expanded="true"] .faq-icon{ transform:rotate(180deg); }
.faq-answer{
  padding:0 4px 24px 16px;
  color:var(--c-text-2);
  font-size:15px;
  line-height:1.8;
  max-width:760px;
}

/* ============ CTA 条 ============ */
.cta-band{
  background:var(--c-primary-soft);
  border:1px solid rgba(20,64,60,.12);
  border-radius:var(--r-lg);
  padding:40px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  margin-bottom:88px;
}
.cta-band__text{ max-width:560px; }
.cta-band__text strong{
  display:block;
  font-family:var(--font-serif);
  font-size:24px;
  font-weight:700;
  color:var(--c-primary);
  margin-bottom:8px;
}
.cta-band__text p{ color:var(--c-text-2); font-size:15px; margin:0; }
.cta-band__actions{ display:flex; flex-wrap:wrap; gap:12px; }

/* 轻提示 */
.toast-tip{
  position:fixed;
  left:50%;
  bottom:36px;
  transform:translate(-50%,16px);
  background:var(--c-primary-deep);
  color:#fff;
  font-size:14px;
  padding:12px 22px;
  border-radius:var(--r-pill);
  box-shadow:var(--sh-2);
  opacity:0;
  pointer-events:none;
  transition:opacity .22s ease, transform .22s ease;
  z-index:2000;
}
.toast-tip.is-visible{ opacity:1; transform:translate(-50%,0); }

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-primary-deep);
  color:rgba(255,255,255,.78);
  font-size:15px;
}
.footer-line{ height:1px; background:var(--c-accent); opacity:.85; }
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:40px;
  padding:64px 0 48px;
}
@media (min-width:768px){
  .footer-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media (min-width:992px){
  .footer-grid{ grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:48px; }
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand .brand__text{ color:#fff; font-size:18px; }
.footer-desc{ font-size:14px; line-height:1.8; color:rgba(255,255,255,.66); max-width:320px; }
.footer-col h4{
  font-family:var(--font-sans);
  font-size:13px;
  font-weight:600;
  letter-spacing:.05em;
  color:rgba(255,255,255,.92);
  margin-bottom:18px;
}
.footer-col ul{ list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:12px; }
.footer-col a{
  color:rgba(255,255,255,.78);
  font-size:15px;
  display:inline-block;
  transition:color .18s ease, transform .18s ease;
}
.footer-col a:hover{ color:var(--c-accent); transform:translateX(2px); text-decoration:none; }
.footer-col p{ font-size:14px; line-height:1.8; color:rgba(255,255,255,.66); margin-bottom:12px; }
.footer-bottom{ border-top:1px solid rgba(255,255,255,.12); }
.footer-bottom__inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:20px;
  padding-bottom:24px;
  font-size:13px;
  color:rgba(255,255,255,.6);
}
.footer-bottom__links{ display:inline-flex; flex-wrap:wrap; gap:18px; }
.footer-bottom__links a{ color:rgba(255,255,255,.6); }
.footer-bottom__links a:hover{ color:var(--c-accent); }

/* ============ 响应式 ============ */
@media (max-width:1199px){
  h1{ font-size:38px; }
}
@media (max-width:991px){
  .header-inner{ min-height:60px; gap:16px; }
  .brand__text{ font-size:17px; }
  .page-head__grid{ grid-template-columns:1fr; gap:24px; align-items:start; }
  .page-head__tags{ justify-content:flex-start; max-width:none; }
  .main-layout{ padding-top:40px; padding-bottom:64px; }
  .content-section{ margin-bottom:48px; }
  .related-section,.faq-section{ padding:56px 0; }
  .cta-band{ padding:32px 24px; margin-bottom:64px; }
  .footer-grid{ gap:32px; padding:48px 0 36px; }
}
@media (max-width:767px){
  body{ font-size:16px; }
  h1{ font-size:30px; }
  h2{ font-size:22px; }
  h3{ font-size:18px; }
  .container{ padding-left:20px; padding-right:20px; }
  .topbar__inner{ font-size:12px; gap:10px; }
  .topbar__right{ gap:12px; width:100%; justify-content:space-between; }
  .page-head{ padding-top:28px; }
  .page-head h1{ font-size:28px; }
  .page-head__lead{ font-size:16px; }
  .cta-band{ flex-direction:column; align-items:flex-start; }
  .cta-band__actions{ width:100%; }
  .cta-band__actions .btn-accent,
  .cta-band__actions .btn-outline-primary-soft{ flex:1 1 auto; }
  .related-card{ flex-direction:column; align-items:flex-start; }
  .related-card__media{ width:100%; }
  .footer-bottom__inner{ flex-direction:column; align-items:flex-start; }
}
@media (max-width:575px){
  h1{ font-size:28px; }
  .btn-accent,.btn-outline-primary-soft,.btn-ghost{ width:100%; }
  .mobile-nav .btn-accent{ width:100%; }
}

/* roulang page: category2 */
:root{
  --c-primary:#14403C;
  --c-primary-deep:#0C2A29;
  --c-primary-soft:#E4EDEA;
  --c-accent:#D96C3D;
  --c-accent-soft:#FBEDE5;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFEAE2;
  --c-line:#E3DDD3;
  --c-text:#1B1E1D;
  --c-text-2:#56605D;
  --c-text-3:#8A928F;
  --c-ok:#2F7A5A;
  --c-warn:#C8552E;

  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --r-pill:999px;

  --sh-1:0 1px 2px rgba(27,30,29,.05), 0 10px 24px -14px rgba(27,30,29,.14);
  --sh-2:0 2px 6px rgba(27,30,29,.07), 0 20px 40px -20px rgba(27,30,29,.20);

  --sp-1:8px; --sp-2:12px; --sp-3:16px; --sp-4:24px;
  --sp-5:32px; --sp-6:48px; --sp-7:64px; --sp-8:88px;

  --f-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --f-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;

  --bs-primary:#14403C;
  --bs-primary-rgb:20,64,60;
  --bs-body-bg:#F7F5F1;
  --bs-body-color:#1B1E1D;
  --bs-border-color:#E3DDD3;
  --bs-border-radius:14px;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --bs-link-color:#14403C;
  --bs-link-hover-color:#D96C3D;
  --bs-link-decoration:none;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--c-bg);
  color:var(--c-text);
  font-family:var(--f-sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-accent);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:var(--f-serif);color:var(--c-text);}
h1{font-size:42px;line-height:1.25;font-weight:700;letter-spacing:-0.01em;}
h2{font-size:28px;line-height:1.35;font-weight:700;}
h3{font-size:20px;line-height:1.45;font-weight:600;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:3px solid rgba(217,108,61,.35);outline-offset:2px;border-radius:6px;}

.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%;}

/* ============ 按钮 ============ */
.btn{font-family:var(--f-sans);font-size:15px;font-weight:600;border-radius:var(--r-sm);
  padding:12px 28px;height:48px;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;transition:all .2s ease;line-height:1;cursor:pointer;}
.btn-lg{height:52px;padding:0 32px;font-size:16px;}
.btn-accent{background:var(--c-accent);color:#fff;border-color:var(--c-accent);}
.btn-accent:hover{background:#C85F32;border-color:#C85F32;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-accent:active{transform:translateY(0);}
.btn-outline-main{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-outline-main:hover{background:rgba(20,64,60,.08);color:var(--c-primary);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.65);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-link-plain{background:none;border:none;color:var(--c-primary);font-size:15px;font-weight:600;padding:8px 4px;cursor:pointer;
  border-bottom:2px solid transparent;transition:border-color .2s ease,color .2s ease;}
.btn-link-plain:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);}

/* ============ 徽章 / 标签 ============ */
.badge-soft{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);font-size:12px;letter-spacing:.04em;line-height:1;}
.badge-accent{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-accent-soft);color:var(--c-accent);font-size:12px;letter-spacing:.04em;line-height:1;}
.badge-line{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);color:var(--c-text-2);font-size:12px;letter-spacing:.04em;line-height:1;background:transparent;}

/* ============ 顶部活动条 ============ */
.site-header{position:sticky;top:0;z-index:1030;transition:box-shadow .25s ease,background-color .25s ease;}
.act-bar{background:var(--c-primary);color:rgba(255,255,255,.9);font-size:13px;height:38px;display:flex;align-items:center;}
.act-bar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;}
.act-bar__left{display:flex;align-items:center;gap:10px;min-width:0;}
.act-bar__tag{display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--c-accent);color:#fff;font-size:12px;letter-spacing:.04em;white-space:nowrap;}
.act-bar__text{color:rgba(255,255,255,.82);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.act-bar__right{display:flex;align-items:center;gap:14px;white-space:nowrap;}
.act-bar__count{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";color:#fff;font-weight:600;}
.act-bar__count.is-ended{color:#F3B99C;font-weight:500;}
.act-bar__link{color:#fff;font-size:13px;border-bottom:1px solid rgba(255,255,255,.5);}
.act-bar__link:hover{color:#F3B99C;border-bottom-color:#F3B99C;}

/* ============ 主导航 ============ */
.nav-bar{background:rgba(255,255,255,.94);border-bottom:1px solid var(--c-line);}
.site-header.is-scrolled .nav-bar{background:rgba(255,255,255,.97);box-shadow:var(--sh-1);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand__text{font-family:var(--f-serif);font-size:19px;font-weight:700;color:var(--c-primary);letter-spacing:.01em;}
.main-nav{display:flex;align-items:center;gap:28px;}
.nav-link-item{position:relative;font-size:15px;color:var(--c-text-2);padding:6px 0;transition:color .2s ease;}
.nav-link-item::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--c-accent);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;}
.nav-link-item:hover{color:var(--c-primary);}
.nav-link-item:hover::after{transform:scaleX(1);}
.nav-link-item.is-active{color:var(--c-primary);font-weight:600;}
.nav-link-item.is-active::after{transform:scaleX(1);}
.nav-tools{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-sm);
  align-items:center;justify-content:center;color:var(--c-primary);}
.nav-toggle svg{width:22px;height:22px;}
.mobile-panel{display:none;background:#fff;border-top:1px solid var(--c-line);}
.mobile-panel.is-open{display:block;}
.mobile-panel__inner{padding:16px 0 24px;}
.mobile-panel__inner a{display:block;padding:13px 0;font-size:16px;color:var(--c-text-2);border-bottom:1px solid var(--c-line);}
.mobile-panel__inner a.is-active{color:var(--c-primary);font-weight:600;}
.mobile-panel__inner .btn{width:100%;margin-top:18px;}

/* ============ 页头横幅 ============ */
.cat-hero{position:relative;overflow:hidden;padding:64px 0 76px;text-align:center;}
.cat-hero__bg{position:absolute;inset:0;background-size:cover;background-position:center;
  filter:saturate(.85);}
.cat-hero__bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(247,245,241,.86) 0%,rgba(247,245,241,.92) 55%,rgba(247,245,241,.98) 100%);}
.cat-hero__inner{position:relative;z-index:2;max-width:860px;margin:0 auto;}
.breadcrumb-nav{margin-bottom:22px;}
.breadcrumb-nav ol{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;
  font-size:14px;color:var(--c-text-3);}
.breadcrumb-nav li{display:flex;align-items:center;gap:8px;}
.breadcrumb-nav a{color:var(--c-text-3);}
.breadcrumb-nav a:hover{color:var(--c-accent);}
.breadcrumb-nav .sep{color:var(--c-text-3);}
.cat-hero h1{font-size:42px;margin-bottom:18px;}
.cat-hero__lead{font-size:17px;line-height:1.9;color:var(--c-text-2);max-width:720px;margin:0 auto 22px;}
.cat-hero__tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;}

/* ============ 数据条 ============ */
.stat-strip{margin-top:-40px;position:relative;z-index:5;}
.stat-strip__box{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);display:grid;grid-template-columns:repeat(3,1fr);overflow:hidden;}
.stat-cell{padding:24px 28px;border-right:1px solid var(--c-line);}
.stat-cell:last-child{border-right:none;}
.stat-cell__num{font-family:var(--f-serif);font-size:30px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-cell__num em{font-style:normal;font-size:15px;color:var(--c-text-3);margin-left:6px;font-family:var(--f-sans);}
.stat-cell__label{font-size:14px;color:var(--c-text-2);margin-top:4px;}

/* ============ 通用板块 ============ */
.section{padding:72px 0;}
.section--alt{background:var(--c-surface-alt);position:relative;}
.section--alt::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.045;
  background-image:radial-gradient(circle at 12% 28%,transparent 28px,var(--c-primary) 29px,transparent 30px),
                   radial-gradient(circle at 12% 28%,transparent 62px,var(--c-primary) 63px,transparent 64px);}
.section--alt > *{position:relative;z-index:2;}
.section-head{max-width:760px;margin-bottom:42px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head__no{font-family:var(--f-serif);font-size:14px;letter-spacing:.12em;color:var(--c-accent);display:block;margin-bottom:10px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--c-text-2);font-size:16px;}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}
.section-head--row .section-head__text{max-width:720px;}
.text-link{color:var(--c-primary);font-weight:600;font-size:15px;border-bottom:2px solid transparent;}
.text-link:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);}

/* ============ 编号条目流 ============ */
.flow-wrap{max-width:1040px;margin:0 auto;}
.flow-item{display:grid;grid-template-columns:88px 1fr 210px;gap:28px;align-items:flex-start;
  padding:32px 20px;border-radius:var(--r-md);transition:background-color .22s ease,box-shadow .22s ease;
  scroll-margin-top:120px;}
.flow-item + .flow-item{border-top:1px dashed var(--c-line);}
.flow-item:hover{background:rgba(239,234,226,.72);box-shadow:var(--sh-1);}
.flow-item + .flow-item:hover{border-top-color:transparent;}
.flow-item__num{font-family:var(--f-serif);font-size:44px;font-weight:700;color:var(--c-accent);
  line-height:1;opacity:.85;font-variant-numeric:tabular-nums;padding-top:2px;}
.flow-item__body h3{margin-bottom:12px;}
.flow-item__body p{font-size:16px;color:var(--c-text-2);line-height:1.85;margin-bottom:16px;}
.flow-item__tags{display:flex;flex-wrap:wrap;gap:8px;}
.flow-item__thumb{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--c-line);aspect-ratio:16/10;background:var(--c-surface-alt);}
.flow-item__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .28s ease-out;}
.flow-item:hover .flow-item__thumb img{transform:scale(1.03);}

/* ============ 核对清单 ============ */
.check-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;}
.check-panel{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);}
.check-panel h3{margin-bottom:18px;display:flex;align-items:center;gap:10px;}
.check-panel h3 svg{width:22px;height:22px;color:var(--c-primary);}
.check-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--c-line);font-size:16px;color:var(--c-text-2);}
.check-list li:last-child{border-bottom:none;padding-bottom:0;}
.check-list li svg{width:18px;height:18px;flex-shrink:0;margin-top:6px;color:var(--c-ok);}
.check-list--warn li svg{color:var(--c-warn);}
.check-list strong{color:var(--c-text);font-weight:600;}

/* ============ FAQ ============ */
.faq-wrap{max-width:840px;margin:0 auto;}
.accordion{--bs-accordion-border-width:0;--bs-accordion-bg:transparent;--bs-accordion-inner-border-width:0;
  --bs-accordion-btn-focus-box-shadow:none;--bs-accordion-active-bg:transparent;--bs-accordion-active-color:var(--c-primary);}
.accordion-item{background:transparent;border:none;border-bottom:1px solid var(--c-line);position:relative;}
.accordion-item::before{content:"";position:absolute;left:-12px;top:14px;bottom:14px;width:3px;background:var(--c-accent);
  opacity:0;transition:opacity .2s ease;border-radius:2px;}
.accordion-item:has(.accordion-button:not(.collapsed))::before{opacity:1;}
.accordion-button{background:transparent;box-shadow:none;font-size:16px;font-weight:600;font-family:var(--f-sans);
  color:var(--c-text);padding:22px 44px 22px 0;line-height:1.6;}
.accordion-button:not(.collapsed){color:var(--c-primary);background:transparent;}
.accordion-button::after{content:"+";background-image:none;font-family:var(--f-sans);font-size:22px;font-weight:400;
  width:auto;height:auto;line-height:1;color:var(--c-accent);display:flex;align-items:center;justify-content:center;
  transition:transform .18s ease;position:absolute;right:8px;top:50%;transform:translateY(-50%);}
.accordion-button:not(.collapsed)::after{content:"−";transform:translateY(-50%) rotate(180deg);}
.accordion-body{padding:0 44px 26px 0;font-size:15px;line-height:1.8;color:var(--c-text-2);}

/* ============ 互链区 ============ */
.link-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.link-card{display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);transition:all .22s ease-out;height:100%;}
.link-card:hover{transform:translateY(-2px);border-color:rgba(20,64,60,.25);box-shadow:var(--sh-2);}
.link-card__no{font-family:var(--f-serif);font-size:14px;letter-spacing:.12em;color:var(--c-accent);display:block;margin-bottom:12px;}
.link-card h3{margin-bottom:12px;}
.link-card p{font-size:15px;color:var(--c-text-2);line-height:1.75;margin-bottom:18px;}
.link-card__more{color:var(--c-primary);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px;}
.link-card__more svg{width:16px;height:16px;transition:transform .2s ease;}
.link-card:hover .link-card__more svg{transform:translateX(3px);}
.link-card:hover .link-card__more{color:var(--c-accent);}

/* ============ CTA 条 ============ */
.cta-band{background:var(--c-primary-soft);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:48px 0;}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band__text{max-width:620px;}
.cta-band__text h2{font-size:24px;margin-bottom:10px;}
.cta-band__text p{color:var(--c-text-2);font-size:16px;margin:0;}
.cta-band__actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}

/* ============ 悬浮返回条 ============ */
.float-rail{position:fixed;right:22px;top:50%;transform:translateY(-50%);z-index:1020;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-pill);box-shadow:var(--sh-1);
  padding:14px 8px;display:flex;flex-direction:column;gap:10px;align-items:center;}
.float-rail__btn{width:40px;height:40px;border-radius:50%;border:1px solid transparent;background:transparent;
  color:var(--c-text-2);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;}
.float-rail__btn:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.float-rail__btn svg{width:18px;height:18px;}
.float-rail__label{writing-mode:vertical-rl;font-size:12px;letter-spacing:.14em;color:var(--c-text-3);padding:4px 0;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-primary-deep);color:rgba(255,255,255,.82);margin-top:0;}
.footer-line{height:1px;background:var(--c-accent);opacity:.9;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand__text{color:#fff;font-size:19px;}
.footer-desc{font-size:15px;line-height:1.8;color:rgba(255,255,255,.7);max-width:320px;}
.footer-col h4{font-family:var(--f-sans);font-size:13px;letter-spacing:.05em;color:rgba(255,255,255,.6);
  font-weight:600;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:rgba(255,255,255,.85);font-size:15px;display:inline-block;transition:all .2s ease;}
.footer-col a:hover{color:var(--c-accent);transform:translateX(2px);}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin-bottom:10px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;font-size:13px;color:rgba(255,255,255,.6);}
.footer-bottom__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.footer-bottom__links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom__links a{color:rgba(255,255,255,.62);}
.footer-bottom__links a:hover{color:var(--c-accent);}

/* ============ 轻提示 ============ */
.toast-bar{position:fixed;left:50%;bottom:32px;transform:translate(-50%,18px);background:var(--c-primary);color:#fff;
  font-size:14px;padding:12px 22px;border-radius:var(--r-pill);box-shadow:var(--sh-2);opacity:0;pointer-events:none;
  transition:opacity .25s ease,transform .25s ease;z-index:2000;}
.toast-bar.is-show{opacity:1;transform:translate(-50%,0);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .container{max-width:1040px;}
}
@media (max-width:991.98px){
  .main-nav{display:none;}
  .nav-tools .btn{display:none;}
  .nav-toggle{display:flex;}
  .nav-inner{min-height:60px;}
  .brand__text{font-size:17px;}
  .cat-hero{padding:48px 0 60px;}
  .cat-hero h1{font-size:32px;}
  .flow-item{grid-template-columns:64px 1fr;gap:20px;padding:26px 16px;}
  .flow-item__num{font-size:34px;}
  .flow-item__thumb{grid-column:1 / -1;max-width:420px;}
  .check-grid{grid-template-columns:1fr;}
  .float-rail{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 36px;}
  .section{padding:56px 0;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  h1{font-size:28px;}
  h2{font-size:22px;}
  h3{font-size:18px;}
  .container{padding-left:20px;padding-right:20px;}
  .act-bar__text{display:none;}
  .stat-strip__box{grid-template-columns:1fr;}
  .stat-cell{border-right:none;border-bottom:1px solid var(--c-line);}
  .stat-cell:last-child{border-bottom:none;}
  .link-cards{grid-template-columns:1fr;}
  .cta-band__inner{flex-direction:column;align-items:flex-start;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom__inner{flex-direction:column;align-items:flex-start;}
  .cat-hero h1{font-size:26px;}
  .section-head--row{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .flow-item{grid-template-columns:1fr;gap:14px;}
  .flow-item__num{font-size:28px;}
  .flow-item__thumb{max-width:100%;}
  .btn{width:100%;}
  .nav-tools{gap:8px;}
}