/* roulang page: index */
:root{
  --ink:#0F4C46;
  --ink-dark:#0A332F;
  --ink-soft:rgba(15,76,70,.08);
  --clay:#C05B2B;
  --clay-deep:#A64A20;
  --clay-soft:rgba(192,91,43,.10);
  --paper:#F6F3ED;
  --surface:#FBF8F3;
  --card:#FFFFFF;
  --line:#E4DED3;
  --divider:#EDE8DE;
  --t1:#1B2320;
  --t2:#586360;
  --t3:#8B9490;
  --radius-card:16px;
  --radius-img:14px;
  --radius-badge:8px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(16,32,29,.04);
  --shadow-2:0 14px 30px -20px rgba(16,32,29,.20);
  --shadow-hover:0 22px 44px -24px rgba(16,32,29,.28);
  --ease:cubic-bezier(.4,0,.2,1);
}

/* ===== 基础重置 ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;font-size:17px;line-height:1.95;color:var(--t1);background:var(--paper);-webkit-font-smoothing:antialiased}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,h5{font-family:inherit;color:var(--ink-dark);margin:0;font-weight:700}
h3{font-size:21px;line-height:1.5}
h4{font-size:17px;line-height:1.6}
p{margin:0 0 1.15em}
img{max-width:100%;height:auto;display:block;background:#EFEBE3}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--clay)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input,textarea,select{font-family:inherit;font-size:15px}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px}

/* ===== 栅格适配 ===== */
.grid-margin-x{margin-left:-15px;margin-right:-15px}
.grid-margin-x>.cell{padding-left:15px;padding-right:15px}
.grid-margin-y{margin-top:-16px}
.grid-margin-y>.cell{padding-top:16px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1200px){.container{max-width:1280px}}
@media (max-width:767px){.container{padding:0 20px}}
.section{padding:96px 0}
.section-alt{background:var(--surface);border-top:1px solid var(--divider);border-bottom:1px solid var(--divider)}
.section-head{margin-bottom:44px;max-width:820px}
.section-kicker{font-size:13px;font-weight:600;letter-spacing:.16em;color:var(--clay);margin-bottom:12px}
.section-title{font-size:clamp(24px,2.6vw,32px);line-height:1.35;margin:0 0 14px;color:var(--ink-dark)}
.section-desc{font-size:16px;line-height:1.9;color:var(--t2);margin:0;max-width:760px}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;transition:all .22s var(--ease);white-space:nowrap}
.btn-primary{background:var(--clay);color:#fff;box-shadow:0 10px 20px -14px rgba(192,91,43,.95)}
.btn-primary:hover{background:var(--clay-deep);color:#fff;transform:translateY(-1px);box-shadow:0 16px 28px -16px rgba(192,91,43,.85)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;border-color:var(--line);color:var(--ink-dark)}
.btn-outline:hover{border-color:var(--ink);color:var(--ink);background:#fff;transform:translateY(-1px)}
.btn-light{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.6);color:#fff;backdrop-filter:blur(4px)}
.btn-light:hover{background:rgba(255,255,255,.24);color:#fff;transform:translateY(-1px)}
.btn-sm{padding:10px 18px;font-size:14px;min-height:40px}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink)}
.btn-link i{transition:transform .22s var(--ease)}
.btn-link:hover{color:var(--clay)}
.btn-link:hover i{transform:translateX(4px)}

/* ===== 徽章标签 ===== */
.badge{display:inline-block;padding:4px 12px;font-size:12.5px;line-height:1.6;font-weight:600;border-radius:var(--radius-badge);background:var(--ink-soft);color:var(--ink)}
.badge-clay{background:var(--clay-soft);color:var(--clay-deep)}
.tag{display:inline-block;padding:6px 14px;font-size:13px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--t2)}
.tag:hover{border-color:var(--ink);color:var(--ink)}

/* ===== 导航 ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;background:rgba(246,243,237,.55);-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);box-shadow:inset 0 -1px 0 rgba(255,255,255,.45),0 10px 30px -24px rgba(10,51,47,.6);transition:background .24s var(--ease),box-shadow .24s var(--ease)}
.site-header.is-solid{background:rgba(246,243,237,.97);box-shadow:0 1px 0 var(--divider),0 12px 26px -22px rgba(10,51,47,.55)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px;transition:height .24s var(--ease)}
.site-header.is-solid .nav-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(140deg,var(--ink),var(--ink-dark));color:#F6F3ED;display:grid;place-items:center;font-size:15px;font-weight:700}
.brand-text{font-size:17px;font-weight:700;color:var(--ink-dark);letter-spacing:.2px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;padding:10px 14px;font-size:15px;color:var(--t1);border-radius:999px;transition:color .2s var(--ease),background .2s var(--ease)}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;background:var(--clay);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease)}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink-dark);font-weight:600;background:var(--ink-soft)}
.nav-actions{display:flex;align-items:center;gap:10px}
.icon-btn{width:40px;height:40px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.72);color:var(--ink);display:grid;place-items:center;font-size:15px;transition:all .2s var(--ease)}
.icon-btn:hover{border-color:var(--ink);color:var(--ink-dark);background:#fff}
.menu-btn{display:none}
.search-bar{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);border-top:1px solid transparent}
.search-bar.open{max-height:96px;border-top-color:var(--divider)}
.search-form{display:flex;align-items:center;gap:12px;padding-top:14px;padding-bottom:16px}
.search-form>i{color:var(--t3)}
.search-form input[type="search"]{flex:1 1 auto;min-width:0;height:46px;padding:0 16px;border:1px solid var(--line);border-radius:var(--radius-input);background:#fff;color:var(--t1);transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.search-form input[type="search"]:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px var(--ink-soft)}

/* ===== 移动抽屉 ===== */
.mobile-drawer{position:fixed;inset:0;z-index:90;background:var(--paper);transform:translateY(-100%);opacity:0;visibility:hidden;transition:transform .3s var(--ease),opacity .3s var(--ease),visibility .3s;display:flex;flex-direction:column;padding:22px 20px 26px;overflow-y:auto}
.mobile-drawer.open{transform:translateY(0);opacity:1;visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-search{display:flex;gap:10px;margin-bottom:26px}
.drawer-search input{flex:1 1 auto;min-width:0;height:46px;padding:0 16px;border:1px solid var(--line);border-radius:var(--radius-input);background:#fff}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:26px}
.drawer-nav a{padding:14px 12px;font-size:17px;font-weight:600;color:var(--ink-dark);border-bottom:1px solid var(--divider)}
.drawer-nav a.active{color:var(--clay);border-bottom-color:var(--clay)}
.drawer-foot{margin-top:auto;font-size:13px;color:var(--t3);line-height:1.9;border-top:1px solid var(--divider);padding-top:18px}

/* ===== Hero ===== */
.hero{position:relative;padding:170px 0 96px;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;overflow:hidden;color:#fff}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(10,51,47,.90) 0%,rgba(15,76,70,.66) 48%,rgba(10,51,47,.32) 100%)}
.hero-inner{position:relative;z-index:2;max-width:800px}
.hero h1{font-size:clamp(30px,4vw,46px);line-height:1.25;color:#fff;margin:0 0 20px}
.hero-sub{font-size:17.5px;line-height:1.95;color:rgba(255,255,255,.86);max-width:680px;margin:0 0 34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:46px}
.hero-tags .tag{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.34);color:#fff}
.hero-tags .tag:hover{background:rgba(255,255,255,.24);color:#fff}
.scroll-hint{position:relative;z-index:2;display:inline-flex;align-items:center;gap:9px;margin-top:58px;font-size:13px;color:rgba(255,255,255,.74)}
.scroll-hint i{animation:bob 1.8s infinite ease-in-out}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(4px)}}

/* ===== 目录卡 ===== */
.cat-card{display:flex;gap:18px;height:100%;padding:26px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1),var(--shadow-2);transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease)}
.cat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-1),var(--shadow-hover);border-color:rgba(15,76,70,.28)}
.cat-num{font-size:34px;font-weight:700;line-height:1.1;color:var(--clay);min-width:48px}
.cat-body{min-width:0}
.cat-body h3{margin:0 0 8px;color:var(--ink-dark)}
.cat-body p{font-size:14.5px;line-height:1.8;color:var(--t2);margin:0 0 14px}
.cat-meta{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--t3)}
.cat-meta i{transition:transform .22s var(--ease)}
.cat-card:hover .cat-meta i{transform:translateX(4px)}

/* ===== 精选区 ===== */
.lead-card{display:flex;flex-direction:column;height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1),var(--shadow-2);transition:transform .24s var(--ease),box-shadow .24s var(--ease)}
.lead-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-1),var(--shadow-hover)}
.lead-media{aspect-ratio:16/9;overflow:hidden}
.lead-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.lead-card:hover .lead-media img{transform:scale(1.03)}
.lead-body{padding:26px 26px 28px}
.lead-body h3{margin:12px 0 10px}
.lead-body p{font-size:15px;line-height:1.85;color:var(--t2);margin:0 0 16px}
.mini-stack{display:flex;flex-direction:column;gap:16px;height:100%}
.mini-card{display:flex;gap:16px;flex:1 1 auto;padding:16px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1),var(--shadow-2);transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease)}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-1),var(--shadow-hover);border-color:rgba(15,76,70,.28)}
.mini-thumb{flex:0 0 132px;width:132px;aspect-ratio:4/3;border-radius:12px;overflow:hidden}
.mini-thumb img{width:100%;height:100%;object-fit:cover}
.mini-body{min-width:0}
.mini-body h3{font-size:18px;line-height:1.55;margin:8px 0 8px}
.mini-body p{font-size:14px;line-height:1.8;color:var(--t2);margin:0}
.banner-card{display:flex;align-items:stretch;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1),var(--shadow-2);transition:transform .24s var(--ease),box-shadow .24s var(--ease)}
.banner-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-1),var(--shadow-hover)}
.banner-media{flex:0 0 38%;min-height:220px;overflow:hidden}
.banner-media img{width:100%;height:100%;object-fit:cover}
.banner-body{padding:30px 34px;display:flex;flex-direction:column;justify-content:center}
.banner-body h3{margin:12px 0 10px}
.banner-body p{font-size:15px;line-height:1.85;color:var(--t2);margin:0 0 14px}

/* ===== 最新信息卡 ===== */
.news-card{display:flex;gap:18px;height:100%;padding:16px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1),var(--shadow-2);transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease)}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-1),var(--shadow-hover);border-color:rgba(15,76,70,.28)}
.news-thumb{flex:0 0 170px;width:170px;aspect-ratio:4/3;border-radius:12px;overflow:hidden;background:#EFEBE3}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{flex:1 1 auto;min-width:0}
.news-title{font-size:18px;line-height:1.55;margin:10px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title a{color:var(--ink-dark)}
.news-title a:hover{color:var(--clay)}
.news-summary{font-size:14.5px;line-height:1.8;color:var(--t2);margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--t3)}
.empty-state{padding:44px 28px;text-align:center;background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card)}
.empty-state p{font-size:15px;color:var(--t2);margin:0 0 14px}

/* ===== 适用场景 & 数据 ===== */
.scene-card{height:100%;padding:26px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1),var(--shadow-2)}
.scene-icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--ink-soft);color:var(--ink);font-size:17px;margin-bottom:16px}
.scene-card h3{font-size:19px;margin:0 0 10px}
.scene-card p{font-size:14.5px;line-height:1.85;color:var(--t2);margin:0}
.stat-row{display:flex;flex-wrap:wrap;gap:16px;margin-top:44px;padding:28px 30px;background:var(--ink-dark);border-radius:var(--radius-card)}
.stat-item{flex:1 1 180px;min-width:150px}
.stat-num{font-size:32px;font-weight:700;color:#F2E7DA;line-height:1.2}
.stat-num span{font-size:15px;font-weight:600;color:rgba(246,243,237,.72);margin-left:4px}
.stat-label{font-size:14px;color:rgba(246,243,237,.74);line-height:1.8}

/* ===== FAQ ===== */
.faq-side h2{margin-bottom:14px}
.faq-side p{font-size:15px;line-height:1.9;color:var(--t2);margin:0 0 20px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:background .24s var(--ease),border-color .24s var(--ease)}
.faq-item.open{background:var(--surface);border-color:rgba(15,76,70,.24)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;min-height:56px;padding:16px 22px;text-align:left;font-size:16.5px;font-weight:600;color:var(--ink-dark);line-height:1.6}
.faq-q i{flex:0 0 auto;font-size:14px;color:var(--clay);transition:transform .26s var(--ease)}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-item.open .faq-a{max-height:420px}
.faq-a p{margin:0;padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--t2)}

/* ===== 横向推荐 ===== */
.reco-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:26px}
.reco-nav{display:flex;gap:10px}
.reco-track{display:flex;gap:18px;overflow-x:auto;padding:4px 0 12px;scroll-snap-type:x mandatory;scrollbar-width:none;-ms-overflow-style:none}
.reco-track::-webkit-scrollbar{display:none}
.reco-card{flex:0 0 300px;scroll-snap-align:start;padding:22px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1),var(--shadow-2);transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease)}
.reco-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-1),var(--shadow-hover);border-color:rgba(15,76,70,.28)}
.reco-card h3{font-size:17.5px;line-height:1.6;margin:12px 0 10px}
.reco-card p{font-size:14px;line-height:1.8;color:var(--t2);margin:0 0 14px}

/* ===== 深色 CTA ===== */
.cta-band{background:linear-gradient(120deg,var(--ink-dark),var(--ink));border-radius:20px;padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;color:#fff}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);line-height:1.4;margin:0 0 12px}
.cta-band p{color:rgba(246,243,237,.82);font-size:15.5px;line-height:1.9;margin:0;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.cta-note{display:block;width:100%;margin-top:14px;font-size:13.5px;color:rgba(246,243,237,.7)}
.cta-note a{color:#F2E7DA;text-decoration:underline;text-underline-offset:4px}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink-dark);color:rgba(246,243,237,.78);padding:72px 0 30px;margin-top:96px}
.site-footer h4{color:#F2E7DA;font-size:15.5px;margin:0 0 16px;letter-spacing:.04em}
.footer-brand .brand-text{color:#F6F3ED}
.footer-brand .brand-mark{background:rgba(246,243,237,.14);color:#F6F3ED}
.footer-desc{font-size:14.5px;line-height:1.9;color:rgba(246,243,237,.7);margin:18px 0 0;max-width:340px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14.5px;color:rgba(246,243,237,.78)}
.footer-links a:hover{color:#9FD6CB}
.footer-note{font-size:13.5px;line-height:1.9;color:rgba(246,243,237,.66);margin:0}
.footer-bottom{margin-top:46px;padding-top:22px;border-top:1px solid rgba(246,243,237,.16);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:rgba(246,243,237,.6)}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .section{padding:64px 0}
  .nav-links{display:none}
  .menu-btn{display:grid}
  .hero{padding:150px 0 80px}
  .banner-media{flex:0 0 34%}
}
@media (max-width:767px){
  body{font-size:16.5px}
  .section{padding:52px 0}
  .nav-actions .btn{display:none}
  .hero{padding:132px 0 68px}
  .hero-sub{font-size:16.5px}
  .hero-sbtn{width:100%}
  .cta-band{padding:38px 24px;border-radius:18px}
  .site-footer{padding:56px 0 26px;margin-top:64px}
  .news-card{flex-direction:column;gap:14px}
  .news-thumb{flex:0 0 auto;width:100%;aspect-ratio:16/9}
  .mini-card{flex-direction:column}
  .mini-thumb{flex:0 0 auto;width:100%;aspect-ratio:16/9}
  .banner-card{flex-direction:column}
  .banner-media{flex:0 0 auto;min-height:190px;width:100%}
  .banner-body{padding:24px 22px}
  .reco-card{flex:0 0 258px}
  .stat-row{padding:24px 22px}
  .search-form{flex-wrap:wrap}
  .search-form input[type="search"]{flex:1 1 100%}
}
@media (max-width:519px){
  .container{padding:0 16px}
  .cat-card{padding:22px;gap:14px}
  .cat-num{font-size:28px;min-width:40px}
  .brand-text{font-size:15.5px}
  .lead-body{padding:20px}
  .faq-q{font-size:15.5px;padding:14px 18px}
  .faq-a p{padding:0 18px 18px}
}

/* roulang page: article */
:root{
  --main:#0F4C46;
  --main-dark:#0A332F;
  --main-soft:rgba(15,76,70,.08);
  --accent:#C05B2B;
  --accent-soft:rgba(192,91,43,.10);
  --bg:#F6F3ED;
  --bg-soft:#FBF8F3;
  --card:#FFFFFF;
  --line:#E4DED3;
  --divider:#EDE8DE;
  --text:#1B2320;
  --text-2:#586360;
  --text-3:#8B9490;
  --danger:#B23A2E;
  --radius-card:16px;
  --radius-img:14px;
  --radius-input:10px;
  --radius-badge:8px;
  --shadow-1:0 1px 2px rgba(16,32,29,.04);
  --shadow-2:0 14px 30px -20px rgba(16,32,29,.20);
  --shadow-hover:0 18px 34px -20px rgba(16,32,29,.32);
  --container:1200px;
  --t:220ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.95;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--main);text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t)}
a:hover{color:var(--accent)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--text)}
p{margin:0 0 1.2em}
ul,ol{margin:0 0 1.2em;padding-left:1.4em}
li{margin-bottom:.35em}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--main);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.2px;line-height:1;
  transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#FFF7F1;box-shadow:0 8px 20px -12px rgba(192,91,43,.75)}
.btn-primary:hover{background:#A84C22;color:#FFF7F1;transform:translateY(-1px);box-shadow:0 12px 26px -12px rgba(192,91,43,.8)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--main);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--main);color:var(--main);background:var(--main-soft)}
.btn-dark{background:var(--main-dark);color:#F2F7F4}
.btn-dark:hover{background:var(--main);color:#F2F7F4;transform:translateY(-1px)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--main);background:none;border:0;padding:6px 0}
.btn-link i{transition:transform var(--t)}
.btn-link:hover i{transform:translateX(4px)}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:var(--radius-badge);
  font-size:12px;font-weight:600;line-height:1.6;background:var(--main-soft);color:var(--main);
}
.badge-accent{background:var(--accent-soft);color:#96461F}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}

/* ============ 头部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:70;
  padding:10px 0;
  background:rgba(246,243,237,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:inset 0 -1px 0 rgba(255,255,255,.45),0 10px 26px -22px rgba(16,32,29,.55);
  transition:background var(--t),padding var(--t),box-shadow var(--t);
}
.site-header.is-stuck{
  background:rgba(246,243,237,.97);
  padding:2px 0;
  box-shadow:0 1px 0 var(--line),0 10px 22px -20px rgba(16,32,29,.35);
}
.nav-inner{display:flex;align-items:center;gap:18px;min-height:62px;transition:min-height var(--t)}
.site-header.is-stuck .nav-inner{min-height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(140deg,var(--main) 0%,var(--main-dark) 100%);
  color:#F6F3ED;font-size:16px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:14px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--text-2);border-radius:999px;
}
.nav-link:hover{color:var(--main);background:rgba(15,76,70,.06)}
.nav-link.active{color:var(--main);font-weight:700}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:rgba(255,255,255,.7);
  color:var(--text-2);font-size:15px;display:inline-flex;align-items:center;justify-content:center;
  transition:border-color var(--t),color var(--t),background-color var(--t),transform var(--t);
}
.icon-btn:hover{border-color:var(--main);color:var(--main);background:#fff;transform:translateY(-1px)}
.menu-btn{display:none}
.search-bar{max-height:0;overflow:hidden;transition:max-height 260ms ease,opacity 220ms ease;opacity:0}
.search-bar.is-open{max-height:96px;opacity:1;padding-top:10px}
.search-form{
  display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-input);padding:8px 10px 8px 16px;box-shadow:var(--shadow-1);
}
.search-form i{color:var(--text-3)}
.search-form input{
  flex:1;border:0;outline:none;background:transparent;font-size:15px;color:var(--text);height:36px;font-family:inherit;
}
.search-form input::placeholder{color:var(--text-3)}
.search-form input:focus{box-shadow:none}

/* ============ 移动端抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--bg);
  transform:translateX(100%);transition:transform 280ms ease;
  display:flex;flex-direction:column;padding:20px 20px 24px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-search{margin:18px 0 8px}
.drawer-links{display:flex;flex-direction:column;margin-top:14px;border-top:1px solid var(--divider)}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;padding:0 4px;border-bottom:1px solid var(--divider);
  font-size:17px;font-weight:600;color:var(--text);
}
.drawer-links a i{color:var(--text-3);font-size:13px}
.drawer-links a.active{color:var(--main)}
.drawer-cta{margin-top:24px}
.drawer-foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--divider);font-size:13px;color:var(--text-3)}

/* ============ 文章头图区 ============ */
.article-hero{
  position:relative;
  padding:150px 0 64px;
  background:
    linear-gradient(180deg,rgba(10,51,47,.82) 0%,rgba(15,76,70,.68) 55%,rgba(15,76,70,.55) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  color:#EFF5F2;
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:rgba(255,255,255,.16);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(239,245,242,.72);margin-bottom:14px}
.breadcrumb a{color:rgba(239,245,242,.82)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.6}
.breadcrumb .current{color:#F0C9AC;font-weight:600}
.article-title{
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.28;
  font-weight:700;
  color:#FFFFFF;
  max-width:900px;
  letter-spacing:-.2px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin-top:22px;font-size:14px;color:rgba(239,245,242,.78)}
.article-meta span{display:inline-flex;align-items:center;gap:8px}
.article-meta i{font-size:13px;opacity:.85}
.hero-divider{width:56px;height:3px;border-radius:3px;background:var(--accent);margin-top:24px}

/* ============ 正文阅读区 ============ */
.article-section{padding:64px 0 24px}
.article-wrap{max-width:800px;margin:0 auto}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:44px 48px;box-shadow:var(--shadow-1),var(--shadow-2);
}
.article-body{font-size:17px;line-height:1.95;color:#26302C}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  font-size:28px;line-height:1.4;margin:2.2em 0 .8em;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.32em;bottom:.28em;width:4px;border-radius:4px;background:var(--accent);
}
.article-body h3{font-size:21px;line-height:1.5;margin:1.9em 0 .7em;color:var(--main-dark)}
.article-body h4{font-size:18px;margin:1.6em 0 .6em;color:var(--main)}
.article-body p{margin:0 0 1.25em}
.article-body a{color:var(--main);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--accent)}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.35em}
.article-body li{margin-bottom:.5em}
.article-body ul li::marker{color:var(--accent)}
.article-body ol li::marker{color:var(--accent);font-weight:700}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--bg-soft);
  border-left:3px solid var(--main);border-radius:0 var(--radius-badge) var(--radius-badge) 0;
  color:var(--text-2);font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body code{
  background:var(--bg-soft);border:1px solid var(--divider);border-radius:6px;
  padding:2px 7px;font-size:14.5px;color:#96461F;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre{
  background:var(--main-dark);color:#DCE9E4;border-radius:var(--radius-img);
  padding:20px 22px;overflow-x:auto;margin:1.6em 0;font-size:14.5px;line-height:1.8;
}
.article-body pre code{background:transparent;border:0;color:inherit;padding:0}
.article-table-scroll{overflow-x:auto;margin:1.6em 0;border:1px solid var(--line);border-radius:var(--radius-img);background:#fff}
.article-body table{width:100%;border-collapse:collapse;min-width:520px;font-size:15.5px}
.article-body th,.article-body td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--divider);vertical-align:top}
.article-body th{background:var(--bg-soft);color:var(--main-dark);font-weight:700;white-space:nowrap}
.article-body tr:last-child td{border-bottom:0}
.article-body img{border-radius:var(--radius-img);margin:1.6em auto;box-shadow:var(--shadow-1);background:#EFECE5}
.article-body figure{margin:1.8em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;line-height:1.7}
.article-body hr{border:0;height:1px;background:var(--divider);margin:2.4em 0}

/* ============ 文末操作条 ============ */
.article-foot{
  margin-top:34px;padding-top:26px;border-top:1px dashed var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
}
.article-foot .tag-row{max-width:62%}
.action-group{display:flex;align-items:center;gap:10px}
.action-btn{
  display:inline-flex;align-items:center;gap:8px;min-height:42px;padding:0 18px;
  border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--text-2);
  font-size:14px;font-weight:600;transition:all var(--t);
}
.action-btn:hover{border-color:var(--main);color:var(--main);background:var(--main-soft);transform:translateY(-1px)}
.action-btn.is-on{border-color:var(--accent);color:#96461F;background:var(--accent-soft)}

/* ============ 空态 ============ */
.empty-state{
  text-align:center;padding:72px 24px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);
}
.empty-state .empty-icon{
  width:64px;height:64px;margin:0 auto 20px;border-radius:20px;background:var(--main-soft);
  color:var(--main);font-size:24px;display:flex;align-items:center;justify-content:center;
}
.empty-state p{font-size:19px;font-weight:600;color:var(--text);margin:0 0 20px}

/* ============ 相关推荐 ============ */
.related-section{padding:72px 0 20px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px}
.section-head h2{font-size:clamp(23px,2.2vw,30px)}
.section-head .section-sub{margin:10px 0 0;font-size:15px;color:var(--text-2)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.mini-card{
  display:flex;flex-direction:column;gap:12px;padding:24px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D8D0C2;color:inherit}
.mini-card h3{font-size:18px;line-height:1.5;color:var(--text)}
.mini-card p{margin:0;font-size:14.5px;line-height:1.8;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-card .mini-foot{display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--text-3);margin-top:4px}
.mini-card .mini-foot i{transition:transform var(--t)}
.mini-card:hover .mini-foot i{transform:translateX(4px);color:var(--accent)}

/* ============ 深色 CTA ============ */
.cta-band{
  margin:80px 0 0;padding:64px 0;
  background:linear-gradient(120deg,var(--main-dark) 0%,var(--main) 100%);
  color:#EFF5F2;
}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-text h2{color:#FFFFFF;font-size:clamp(23px,2.4vw,31px);margin-bottom:12px}
.cta-text p{margin:0;max-width:560px;font-size:15.5px;color:rgba(239,245,242,.82);line-height:1.9}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-band .btn-ghost{border-color:rgba(239,245,242,.45);color:#EFF5F2}
.cta-band .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.12);color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:var(--main-dark);color:#CBD9D4;padding:70px 0 0;font-size:15px}
.site-footer h4{color:#FFFFFF;font-size:16px;margin-bottom:16px;font-weight:700}
.footer-brand{color:#FFFFFF;margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-mark{background:#fff;color:var(--main-dark)}
.footer-desc{color:rgba(203,217,212,.85);font-size:14.5px;line-height:1.9;margin:0;max-width:340px}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(203,217,212,.9);font-size:14.5px}
.footer-links a:hover{color:#9FD3C6}
.footer-note{color:rgba(203,217,212,.78);font-size:14px;line-height:1.9;margin:0}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;
  font-size:13.5px;color:rgba(203,217,212,.7);
}
.site-footer .grid-x{margin-bottom:0}

/* ============ 提示条 ============ */
.toast{
  position:fixed;left:50%;bottom:36px;transform:translate(-50%,16px);
  background:var(--main-dark);color:#EFF5F2;padding:12px 22px;border-radius:999px;
  font-size:14px;box-shadow:0 16px 32px -16px rgba(10,51,47,.7);
  opacity:0;pointer-events:none;transition:opacity var(--t),transform var(--t);z-index:120;
}
.toast.is-show{opacity:1;transform:translate(-50%,0)}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .nav-links{display:none}
  .menu-btn{display:inline-flex}
  .nav-actions .btn-primary{display:none}
  .article-hero{padding:136px 0 56px}
  .article-card{padding:36px 32px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
}
@media screen and (max-width:767px){
  body{font-size:16.5px}
  .container{padding:0 20px}
  .brand-text{font-size:15px;max-width:190px;overflow:hidden;text-overflow:ellipsis}
  .article-hero{padding:126px 0 48px}
  .article-section{padding:44px 0 16px}
  .article-card{padding:28px 22px;border-radius:14px}
  .article-body h2{font-size:23px}
  .article-body h3{font-size:19px}
  .article-foot{flex-direction:column;align-items:flex-start}
  .article-foot .tag-row{max-width:100%}
  .related-section{padding:52px 0 16px}
  .related-grid{grid-template-columns:1fr}
  .cta-band{margin-top:56px;padding:48px 0}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .site-footer{padding-top:52px}
  .footer-desc{max-width:100%}
}
@media screen and (max-width:519px){
  .brand-text{max-width:150px}
  .article-title{font-size:26px}
  .btn{width:100%;padding:0 20px}
  .cta-actions{width:100%}
  .action-group{width:100%}
  .action-btn{flex:1;justify-content:center}
  .search-form{flex-wrap:wrap}
  .search-form input{width:100%;flex:1 1 100%}
}

/* roulang page: category1 */
:root{
  --ink:#0F4C46;
  --ink-deep:#0A332F;
  --clay:#C05B2B;
  --clay-deep:#A44A1F;
  --paper:#F6F3ED;
  --paper-2:#FBF8F3;
  --card:#FFFFFF;
  --line:#E4DED3;
  --divider:#EDE8DE;
  --text:#1B2320;
  --text-2:#586360;
  --text-3:#8B9490;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:999px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(16,32,29,.04), 0 14px 30px -20px rgba(16,32,29,.20);
  --shadow-2:0 2px 4px rgba(16,32,29,.06), 0 22px 44px -24px rgba(16,32,29,.28);
  --dur:220ms;
  --ease:ease;
  --warn:#B23A2E;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.95;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--clay);}
ul,ol{margin:0 0 1.2em;padding-left:1.2em;}
li{margin-bottom:.35em;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);line-height:1.35;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;}
::selection{background:rgba(15,76,70,.14);}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.2px;
  cursor:pointer;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),
             border-color var(--dur) var(--ease),transform var(--dur) var(--ease),
             box-shadow var(--dur) var(--ease);
}
.btn-primary{background:var(--clay);color:#fff;box-shadow:0 1px 2px rgba(16,32,29,.08);}
.btn-primary:hover{background:var(--clay-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(192,91,43,.75);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:rgba(255,255,255,.62);color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink);background:#fff;}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-outline-light:hover{background:#fff;color:var(--ink-deep);border-color:#fff;}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-lg{min-height:52px;padding:0 30px;font-size:16px;}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--ink);
  outline-offset:2px;
}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  background:rgba(246,243,237,.55);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.45);
  box-shadow:0 8px 26px -22px rgba(16,32,29,.55);
  transition:background var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(246,243,237,.97);
  border-bottom-color:var(--line);
  box-shadow:0 1px 0 rgba(16,32,29,.05),0 12px 26px -22px rgba(16,32,29,.5);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:22px;
  height:76px;
  transition:height var(--dur) var(--ease);
}
.site-header.is-scrolled .nav-inner{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink-deep);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:linear-gradient(150deg,var(--ink),var(--ink-deep));
  color:#F6F3ED;
  font-size:17px;
  font-weight:700;
  letter-spacing:0;
}
.brand-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:.3px;
  white-space:nowrap;
  color:inherit;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:6px;
  height:2px;
  border-radius:2px;
  background:var(--clay);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--dur) var(--ease);
}
.nav-link:hover{color:var(--ink);background:rgba(15,76,70,.05);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--ink-deep);font-weight:600;background:rgba(15,76,70,.07);}
.nav-link.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:14px;}
.icon-btn{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.72);
  color:var(--ink);
  font-size:15px;
  cursor:pointer;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.icon-btn:hover{border-color:var(--ink);background:#fff;transform:translateY(-1px);}
.menu-btn{display:none;}
.search-bar{
  max-height:0;
  overflow:hidden;
  transition:max-height 280ms var(--ease),padding var(--dur) var(--ease);
}
.search-bar.is-open{max-height:90px;padding-bottom:16px;}
.search-form{
  display:flex;
  align-items:center;
  gap:10px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-input);
  padding:8px 8px 8px 14px;
}
.search-form i{color:var(--text-3);}
.search-form input{
  flex:1 1 auto;
  border:0;
  outline:none;
  font-size:15px;
  color:var(--text);
  background:transparent;
  min-height:40px;
}
.search-form input::placeholder{color:var(--text-3);}
.search-form:focus-within{border-color:var(--ink);box-shadow:0 0 0 3px rgba(15,76,70,.10);}

/* 移动端抽屉 */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:90;
  visibility:hidden;
  pointer-events:none;
}
.mobile-drawer.is-open{visibility:visible;pointer-events:auto;}
.drawer-mask{
  position:absolute;inset:0;
  background:rgba(10,51,47,.36);
  opacity:0;
  transition:opacity var(--dur) var(--ease);
}
.mobile-drawer.is-open .drawer-mask{opacity:1;}
.drawer-panel{
  position:absolute;
  top:0;right:0;bottom:0;
  width:min(86vw,360px);
  background:var(--paper-2);
  border-left:1px solid var(--line);
  padding:22px 20px 18px;
  display:flex;
  flex-direction:column;
  gap:18px;
  transform:translateX(100%);
  transition:transform 260ms var(--ease);
  overflow-y:auto;
}
.mobile-drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-title{font-size:15px;font-weight:700;color:var(--ink-deep);}
.drawer-links{display:flex;flex-direction:column;gap:4px;}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;
  border-radius:12px;
  border:1px solid transparent;
  color:var(--text-2);
  font-size:16px;
}
.drawer-links a:hover{background:#fff;border-color:var(--line);color:var(--ink);}
.drawer-links a.active{background:rgba(15,76,70,.08);color:var(--ink-deep);font-weight:600;}
.drawer-foot{margin-top:auto;font-size:13px;color:var(--text-3);border-top:1px solid var(--divider);padding-top:14px;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;
  color:var(--text-3);
  padding:104px 0 12px;
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--ink);}
.breadcrumb .sep{opacity:.7;}
.breadcrumb .current{color:var(--ink);}

/* ---------- 分类页窄幅标题条 ---------- */
.cat-hero{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.cat-hero-grid{
  display:grid;
  grid-template-columns:1.55fr 1fr;
  align-items:stretch;
}
.cat-hero-body{
  padding:42px 44px 40px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:14px;
}
.cat-hero h1{
  font-size:clamp(30px,3.4vw,42px);
  line-height:1.25;
  letter-spacing:.5px;
  color:var(--ink-deep);
}
.cat-hero .lead{
  font-size:17px;
  color:var(--text-2);
  max-width:600px;
  margin:0;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 12px;
  border-radius:8px;
  background:rgba(15,76,70,.08);
  color:var(--ink);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.3px;
}
.tag.clay{background:rgba(192,91,43,.10);color:var(--clay-deep);}
.cat-hero-media{
  position:relative;
  min-height:250px;
  background:#EDE8DE url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
}
.cat-hero-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(10,51,47,.42),rgba(10,51,47,.06) 62%);
}
.cat-hero-caption{
  position:absolute;
  left:18px;bottom:16px;
  z-index:2;
  color:#fff;
  font-size:13px;
  letter-spacing:.4px;
  text-shadow:0 1px 6px rgba(10,51,47,.6);
}

/* ---------- 主体布局：左锚点 + 右分区 ---------- */
main{display:block;padding-bottom:8px;}
.section{padding:72px 0;}
.section.tight{padding:56px 0;}
.section-head{max-width:820px;margin-bottom:34px;}
.section-head h2{
  font-size:clamp(24px,2.4vw,30px);
  color:var(--ink-deep);
  margin-bottom:10px;
}
.section-head p{color:var(--text-2);margin:0;font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:1.6px;
  color:var(--clay-deep);
  text-transform:uppercase;
  margin-bottom:10px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--clay);}

.cat-layout{display:grid;grid-template-columns:250px 1fr;gap:40px;align-items:start;}
.anchor-panel{position:sticky;top:96px;}
.anchor-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px 18px;
  box-shadow:var(--shadow-1);
}
.anchor-title{font-size:13px;font-weight:700;letter-spacing:1.2px;color:var(--text-3);margin-bottom:12px;}
.anchor-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;}
.anchor-list a{
  display:flex;align-items:center;gap:10px;
  min-height:44px;
  padding:0 12px;
  border-radius:10px;
  font-size:15px;
  color:var(--text-2);
  border-left:2px solid transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.anchor-list a span.num{
  font-size:12.5px;
  font-weight:700;
  color:var(--clay);
  letter-spacing:.5px;
}
.anchor-list a:hover{background:var(--paper-2);color:var(--ink);}
.anchor-list a.is-current{background:rgba(15,76,70,.07);color:var(--ink-deep);font-weight:600;border-left-color:var(--clay);}
.anchor-tip{
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--divider);
  font-size:13px;
  line-height:1.8;
  color:var(--text-3);
}

.zone{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:32px 34px;
  box-shadow:var(--shadow-1);
  margin-bottom:26px;
  scroll-margin-top:96px;
}
.zone:last-child{margin-bottom:0;}
.zone-head{display:flex;align-items:center;gap:14px;margin-bottom:16px;}
.zone-idx{
  width:42px;height:42px;flex:0 0 42px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid rgba(192,91,43,.4);
  color:var(--clay-deep);
  font-size:15px;
  font-weight:700;
}
.zone h3{font-size:21px;color:var(--ink-deep);}
.zone-split{display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:start;}
.zone p{color:var(--text-2);}
.zone-figure{
  border-radius:var(--radius-img);
  overflow:hidden;
  border:1px solid var(--line);
  background:#EDE8DE;
}
.zone-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.zone-figure figcaption{font-size:13px;color:var(--text-3);padding:10px 12px;text-align:center;background:var(--paper-2);}

.check-list{list-style:none;margin:18px 0 0;padding:0;}
.check-list li{
  display:flex;gap:12px;
  padding:12px 0;
  border-top:1px solid var(--divider);
  font-size:15.5px;
  color:var(--text-2);
  margin:0;
}
.check-list li:first-child{border-top:0;padding-top:4px;}
.check-list i{color:var(--clay);margin-top:6px;font-size:13px;}

/* ---------- 适用场景卡 ---------- */
.grid-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.scene-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D8D0C2;}
.scene-thumb{overflow:hidden;background:#EDE8DE;}
.scene-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 260ms var(--ease);}
.scene-card:hover .scene-thumb img{transform:scale(1.03);}
.scene-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto;}
.scene-body h3{font-size:18px;color:var(--ink-deep);line-height:1.5;}
.scene-body p{font-size:14.5px;color:var(--text-2);line-height:1.8;margin:0;}
.scene-foot{margin-top:auto;padding-top:12px;font-size:14px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:6px;}
.scene-card:hover .scene-foot i{transform:translateX(4px);}
.scene-foot i{transition:transform var(--dur) var(--ease);}

/* ---------- 步骤时间线 ---------- */
.timeline{position:relative;display:grid;gap:20px;}
.step{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:20px;
  align-items:start;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px 26px;
  box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.step-num{
  width:52px;height:52px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:16px;
  background:rgba(15,76,70,.08);
  color:var(--ink-deep);
  font-size:18px;
  font-weight:700;
}
.step h3{font-size:19px;color:var(--ink-deep);margin-bottom:6px;}
.step p{color:var(--text-2);font-size:15.5px;margin:0;}

/* ---------- 信息数据条 ---------- */
.stat-band{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:34px 30px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.stat{text-align:left;padding-left:18px;border-left:2px solid rgba(192,91,43,.35);}
.stat strong{display:block;font-size:32px;line-height:1.2;color:var(--ink-deep);letter-spacing:.5px;}
.stat span{display:block;margin-top:6px;font-size:14px;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:280px 1fr;gap:38px;align-items:start;}
.faq-aside h2{font-size:clamp(23px,2.2vw,28px);color:var(--ink-deep);margin-bottom:12px;}
.faq-aside p{color:var(--text-2);font-size:15px;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.faq-item[open]{background:var(--paper-2);border-color:#D8D0C2;}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 22px;
  font-size:16.5px;
  font-weight:600;
  color:var(--ink-deep);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .mark{
  flex:0 0 auto;
  width:26px;height:26px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:8px;
  border:1px solid var(--line);
  color:var(--clay-deep);
  font-size:13px;
  background:#fff;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease);
}
.faq-item[open] summary .mark{transform:rotate(45deg);background:rgba(192,91,43,.10);}
.faq-item .faq-body{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  border-top:1px solid var(--divider);
  padding-top:16px;
  margin-top:0;
}

/* ---------- 分类互链 ---------- */
.link-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.link-card{
  display:flex;
  flex-direction:column;
  gap:10px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 24px 22px;
  box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.link-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D8D0C2;}
.link-card .badge{
  align-self:flex-start;
  font-size:12.5px;font-weight:700;letter-spacing:.6px;
  padding:4px 10px;border-radius:8px;
  background:rgba(15,76,70,.08);color:var(--ink);
}
.link-card.is-current .badge{background:rgba(192,91,43,.12);color:var(--clay-deep);}
.link-card h3{font-size:19px;color:var(--ink-deep);}
.link-card p{font-size:14.5px;color:var(--text-2);margin:0;line-height:1.8;}
.link-card .go{margin-top:auto;padding-top:12px;font-size:14px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:6px;}
.link-card .go i{transition:transform var(--dur) var(--ease);}
.link-card:hover .go i{transform:translateX(4px);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  background:var(--ink-deep) url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
  border:1px solid rgba(255,255,255,.10);
}
.cta-band::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(10,51,47,.94),rgba(15,76,70,.80));
}
.cta-inner{
  position:relative;
  z-index:2;
  padding:44px 46px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
  flex-wrap:wrap;
}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.3vw,28px);margin-bottom:8px;}
.cta-inner p{color:rgba(246,243,237,.82);margin:0;font-size:15.5px;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:72px;
  background:var(--ink-deep);
  color:#F6F3ED;
  padding:64px 0 26px;
}
.site-footer h4{
  font-size:15px;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.5px;
}
.site-footer .brand{color:#fff;margin-bottom:16px;}
.site-footer .brand-mark{background:rgba(255,255,255,.12);color:#F6F3ED;}
.footer-desc{
  font-size:14.5px;
  line-height:1.9;
  color:rgba(246,243,237,.72);
  max-width:360px;
  margin:0;
}
.footer-links{list-style:none;margin:0;padding:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:rgba(246,243,237,.78);font-size:14.5px;}
.footer-links a:hover{color:#A8D8D0;}
.footer-note{
  font-size:14px;
  line-height:1.9;
  color:rgba(246,243,237,.72);
  margin:0;
}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13.5px;
  color:rgba(246,243,237,.62);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .grid-cards{grid-template-columns:repeat(3,1fr);}
  .stat-band{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .menu-btn{display:inline-flex;}
  .nav-actions{margin-left:auto;}
  .cat-layout{grid-template-columns:1fr;gap:26px;}
  .anchor-panel{position:static;}
  .anchor-list{flex-direction:row;flex-wrap:wrap;gap:8px;}
  .anchor-list a{border-left:0;border:1px solid var(--line);border-radius:10px;background:#fff;padding:0 14px;}
  .anchor-list a.is-current{background:rgba(15,76,70,.08);border-color:rgba(15,76,70,.25);}
  .zone-split{grid-template-columns:1fr;}
  .grid-cards{grid-template-columns:repeat(2,1fr);}
  .link-cards{grid-template-columns:repeat(2,1fr);}
  .faq-grid{grid-template-columns:1fr;gap:24px;}
  .section{padding:64px 0;}
  .breadcrumb{padding-top:96px;}
}
@media (max-width:767px){
  body{font-size:16.5px;line-height:1.9;}
  .container{padding:0 20px;}
  .cat-hero-grid{grid-template-columns:1fr;}
  .cat-hero-body{padding:30px 24px 28px;}
  .cat-hero-media{min-height:170px;}
  .zone{padding:24px 22px;}
  .zone-head{gap:12px;}
  .zone-idx{width:38px;height:38px;flex-basis:38px;font-size:14px;}
  .stat-band{grid-template-columns:1fr;padding:26px 22px;}
  .stat{padding-left:14px;}
  .cta-inner{padding:32px 24px;}
  .section{padding:52px 0;}
  .step{grid-template-columns:1fr;gap:12px;padding:20px 22px;}
  .brand-text{font-size:15.5px;}
}
@media (max-width:519px){
  .grid-cards{grid-template-columns:1fr;}
  .link-cards{grid-template-columns:1fr;}
  .nav-actions .btn-sm{display:none;}
  .anchor-list a{width:100%;}
  .cat-hero h1{font-size:27px;}
  .faq-item summary{font-size:15.5px;padding:14px 18px;}
}

/* roulang page: category2 */
:root{
  --ink:#0F4C46;
  --ink-deep:#0A332F;
  --ink-soft:#8ED3C6;
  --clay:#C05B2B;
  --clay-deep:#A94E24;
  --paper:#F6F3ED;
  --paper-2:#FBF8F3;
  --card:#FFFFFF;
  --line:#E4DED3;
  --divider:#EDE8DE;
  --text:#1B2320;
  --text-2:#586360;
  --text-3:#8B9490;
  --danger:#B23A2E;
  --r-card:16px;
  --r-img:14px;
  --r-pill:999px;
  --r-input:10px;
  --r-badge:8px;
  --shadow-card:0 1px 2px rgba(16,32,29,.04),0 14px 30px -20px rgba(16,32,29,.20);
  --shadow-hover:0 2px 6px rgba(16,32,29,.06),0 24px 44px -24px rgba(16,32,29,.30);
  --shadow-nav:0 8px 26px -18px rgba(16,32,29,.45);
  --container:1200px;
  --section-pad:96px;
  --t:220ms;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.95;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--t) ease,border-color var(--t) ease,background-color var(--t) ease;}
a:hover{color:var(--ink);}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;}
input{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:.005em;}
h1{font-size:clamp(30px,3.4vw,44px);line-height:1.25;}
h2{font-size:clamp(26px,2.6vw,32px);line-height:1.35;}
h3{font-size:clamp(19px,1.6vw,21px);line-height:1.5;}
h4{font-size:16px;line-height:1.6;}
[hidden]{display:none!important;}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px;}

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

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-pad) 0;}
.section-alt{background:var(--paper-2);border-top:1px solid var(--divider);border-bottom:1px solid var(--divider);}
.section-head{max-width:780px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;
  padding:5px 12px;
  margin-bottom:16px;
  font-size:12.5px;
  line-height:1.6;
  letter-spacing:.06em;
  color:var(--ink);
  background:rgba(15,76,70,.08);
  border-radius:var(--r-badge);
}
.section-head h2{margin-bottom:14px;}
.section-lead{
  font-size:16.5px;
  color:var(--text-2);
  line-height:1.9;
  margin:0;
}
.section-head.center .section-lead{max-width:660px;margin:0 auto;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 24px;
  font-size:15.5px;
  font-weight:600;
  line-height:1;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  transition:background-color var(--t) ease,color var(--t) ease,border-color var(--t) ease,transform var(--t) ease,box-shadow var(--t) ease;
  white-space:nowrap;
}
.btn-sm{min-height:42px;padding:0 18px;font-size:14.5px;}
.btn-lg{min-height:54px;padding:0 30px;font-size:16.5px;}
.btn-primary{background:var(--clay);color:#fff;border-color:var(--clay);}
.btn-primary:hover{background:var(--clay-deep);border-color:var(--clay-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 22px -14px rgba(192,91,43,.85);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink);}
.btn-soft{background:rgba(15,76,70,.08);color:var(--ink);border-color:transparent;}
.btn-soft:hover{background:rgba(15,76,70,.14);color:var(--ink);}
.btn-light{background:rgba(246,243,237,.14);color:#F6F3ED;border-color:rgba(246,243,237,.32);}
.btn-light:hover{background:rgba(246,243,237,.24);color:#fff;border-color:rgba(246,243,237,.5);}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
}
.text-link i{transition:transform var(--t) ease;}
.text-link:hover i{transform:translateX(4px);}

/* ---------- 导航 ---------- */
.site-header{
  position:absolute;
  top:0;left:0;right:0;
  z-index:90;
  padding:14px 0;
  background:rgba(246,243,237,.58);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.5);
  box-shadow:0 10px 30px -26px rgba(16,32,29,.6);
  transition:padding var(--t) ease,background-color var(--t) ease,box-shadow var(--t) ease,border-color var(--t) ease;
}
.site-header.is-stuck{
  position:fixed;
  padding:8px 0;
  background:rgba(246,243,237,.96);
  border-bottom:1px solid var(--divider);
  box-shadow:var(--shadow-nav);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:52px;
  transition:min-height var(--t) ease;
}
.site-header.is-stuck .nav-inner{min-height:46px;}
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{
  width:36px;height:36px;
  flex:0 0 36px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--ink);
  color:#F6F3ED;
  font-size:17px;
  font-weight:700;
  letter-spacing:.02em;
}
.brand-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--text);
  line-height:1.3;
}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:var(--r-pill);
  transition:color var(--t) ease,background-color var(--t) ease;
}
.nav-link:hover{color:var(--ink);background:rgba(15,76,70,.06);}
.nav-link.active{color:var(--ink);font-weight:600;background:rgba(15,76,70,.07);}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:50%;bottom:4px;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--clay);
  transform:translateX(-50%);
}
.nav-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.6);
  color:var(--ink);
  font-size:15px;
  transition:background-color var(--t) ease,color var(--t) ease,border-color var(--t) ease,transform var(--t) ease;
}
.icon-btn:hover{background:#fff;border-color:var(--ink);transform:translateY(-1px);}
.menu-btn{display:none;}
.search-bar{
  display:none;
  padding:14px 0 6px;
}
.search-bar.is-open{display:block;}
.search-form{
  display:flex;
  align-items:center;
  gap:10px;
  padding:6px 6px 6px 16px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  box-shadow:var(--shadow-card);
}
.search-form i{color:var(--text-3);font-size:14px;}
.search-form input{
  flex:1;
  min-width:0;
  height:40px;
  border:none;
  background:transparent;
  font-size:15px;
  color:var(--text);
  outline:none;
}
.search-form input::placeholder{color:var(--text-3);}
.search-form:focus-within{border-color:var(--ink);box-shadow:0 0 0 3px rgba(15,76,70,.08);}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:120;
  display:none;
  flex-direction:column;
  gap:20px;
  padding:22px 22px 26px;
  background:var(--paper);
  overflow-y:auto;
  transform:translateX(100%);
  transition:transform 260ms ease;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.drawer-links{display:flex;flex-direction:column;gap:6px;}
.drawer-links a{
  display:flex;
  align-items:center;
  min-height:52px;
  padding:0 16px;
  font-size:16.5px;
  font-weight:600;
  color:var(--text);
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
}
.drawer-links a.active{color:var(--ink);border-color:rgba(15,76,70,.35);background:rgba(15,76,70,.06);}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--divider);font-size:13px;color:var(--text-3);}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  line-height:1.7;
  color:var(--text-3);
  margin-bottom:12px;
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--ink);}
.breadcrumb .sep{color:#B7BDB9;}
.breadcrumb .current{color:var(--clay);font-weight:600;}

/* ---------- 分类页标题条 ---------- */
.cat-hero{
  position:relative;
  padding:150px 0 56px;
  background:var(--paper-2);
  border-bottom:1px solid var(--divider);
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(820px 300px at 86% 8%,rgba(15,76,70,.10),transparent 68%);
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2;}
.cat-hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:48px;align-items:center;}
.cat-hero h1{margin-bottom:16px;color:var(--ink-deep);}
.cat-hero-lead{
  font-size:16.5px;
  color:var(--text-2);
  line-height:1.9;
  max-width:620px;
  margin-bottom:22px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  font-size:12.5px;
  line-height:1.7;
  color:var(--ink);
  background:rgba(15,76,70,.08);
  border-radius:var(--r-badge);
}
.tag.clay{color:var(--clay-deep);background:rgba(192,91,43,.10);}
.cat-hero-media{
  position:relative;
  aspect-ratio:4/3;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  background:#EFEBE2;
}
.cat-hero-media img{width:100%;height:100%;object-fit:cover;}

/* ---------- 时间线步骤 ---------- */
.timeline{display:flex;flex-direction:column;gap:20px;}
.step{display:grid;grid-template-columns:84px minmax(0,1fr);gap:22px;position:relative;}
.step-rail{position:relative;display:flex;justify-content:center;}
.step-rail::before{
  content:"";
  position:absolute;
  top:60px;bottom:-20px;left:50%;
  width:1px;
  background:var(--divider);
  transform:translateX(-50%);
}
.step:last-child .step-rail::before{display:none;}
.step-num{
  position:relative;
  z-index:1;
  width:56px;height:56px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--paper-2);
  border:1px solid var(--line);
  color:var(--clay);
  font-size:17px;
  font-weight:700;
  letter-spacing:.03em;
}
.step-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 28px;
  box-shadow:var(--shadow-card);
  transition:transform var(--t) ease,box-shadow var(--t) ease,border-color var(--t) ease;
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D8D0C2;}
.step-card h3{margin-bottom:10px;color:var(--ink-deep);}
.step-card p{color:var(--text-2);font-size:16px;line-height:1.9;}
.step-points{margin-top:16px;display:flex;flex-direction:column;gap:8px;}
.step-points li{
  position:relative;
  padding-left:20px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--text-2);
}
.step-points li::before{
  content:"";
  position:absolute;
  left:2px;top:11px;
  width:7px;height:7px;
  border-radius:50%;
  background:rgba(15,76,70,.28);
}

/* ---------- 图文分区 ---------- */
.feature-block{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;
  align-items:center;
  padding:36px 0;
}
.feature-block + .feature-block{border-top:1px solid var(--divider);}
.feature-block.reverse .feature-media{order:2;}
.feature-media{
  aspect-ratio:16/10;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  background:#EFEBE2;
  box-shadow:var(--shadow-card);
}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform 260ms ease;}
.feature-media:hover img{transform:scale(1.03);}
.feature-body h3{margin-bottom:12px;color:var(--ink-deep);}
.feature-body p{color:var(--text-2);font-size:16px;line-height:1.9;}
.feature-list{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.feature-list li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--text-2);
}
.feature-list i{color:var(--ink);margin-top:6px;font-size:12px;}

/* ---------- 数据徽章条 ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
  margin-top:56px;
}
.stat-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--shadow-card);
}
.stat-item strong{
  display:block;
  font-size:30px;
  line-height:1.25;
  color:var(--ink);
  letter-spacing:.01em;
}
.stat-item span{display:block;font-size:14px;color:var(--text-2);margin-top:4px;}

/* ---------- 规格表 ---------- */
.spec-wrap{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.spec-row{
  display:grid;
  grid-template-columns:220px minmax(0,1fr);
  gap:20px;
  padding:18px 26px;
  border-bottom:1px solid var(--divider);
  font-size:15.5px;
  line-height:1.8;
}
.spec-row:last-child{border-bottom:none;}
.spec-row dt{color:var(--ink);font-weight:600;}
.spec-row dd{margin:0;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.8fr);gap:56px;align-items:start;}
.faq-side h2{margin-bottom:14px;}
.faq-side p{color:var(--text-2);font-size:16px;line-height:1.9;margin-bottom:22px;}
.accordion{background:transparent;border:none;}
.accordion .accordion-item{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--card);
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:border-color var(--t) ease;
}
.accordion .accordion-item.is-active{border-color:#D8D0C2;}
.accordion .accordion-title{
  display:flex;
  align-items:center;
  min-height:58px;
  padding:18px 58px 18px 22px;
  background:transparent;
  border:none;
  font-size:16.5px;
  font-weight:600;
  line-height:1.7;
  color:var(--text);
  transition:background-color var(--t) ease,color var(--t) ease;
}
.accordion .accordion-title:hover{background:var(--paper-2);color:var(--ink);}
.accordion .accordion-title:focus{outline:none;}
.accordion .accordion-title:focus-visible{outline:2px solid var(--ink);outline-offset:-3px;}
.accordion .accordion-title::before{
  position:absolute;
  right:22px;
  width:26px;height:26px;
  font-size:16px;
  line-height:26px;
  text-align:center;
  color:var(--ink);
  background:rgba(15,76,70,.08);
  border-radius:50%;
  content:"+";
}
.accordion .accordion-item.is-active .accordion-title::before{content:"–";background:rgba(192,91,43,.12);color:var(--clay-deep);}
.accordion .accordion-title{position:relative;}
.accordion .accordion-content{
  padding:2px 22px 20px;
  border-top:none;
  background:var(--paper-2);
  color:var(--text-2);
  font-size:15px;
  line-height:1.8;
}
.accordion .accordion-content p{margin:0;}

/* ---------- 互链卡 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.rel-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:26px 24px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  transition:transform var(--t) ease,box-shadow var(--t) ease,border-color var(--t) ease;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D8D0C2;color:inherit;}
.rel-card .rel-num{
  font-size:30px;
  font-weight:700;
  line-height:1.2;
  color:var(--clay);
  letter-spacing:.02em;
}
.rel-card h3{font-size:19px;}
.rel-card p{font-size:14.5px;color:var(--text-2);line-height:1.8;margin:0;}
.rel-card .rel-foot{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:auto;
  padding-top:10px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
}
.rel-card .rel-foot i{transition:transform var(--t) ease;}
.rel-card:hover .rel-foot i{transform:translateX(4px);}
.rel-card.current{border-color:rgba(192,91,43,.45);background:#FFFDFA;}

/* ---------- 深色 CTA ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--ink-deep),var(--ink));
  color:#F6F3ED;
  padding:56px 0;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
}
.cta-text{max-width:620px;}
.cta-text h2{color:#fff;font-size:clamp(22px,2.2vw,27px);margin-bottom:10px;}
.cta-text p{color:rgba(246,243,237,.78);font-size:15.5px;line-height:1.85;margin:0;}
.cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-deep);
  color:rgba(246,243,237,.78);
  padding:64px 0 24px;
  font-size:14.5px;
}
.footer-brand{margin-bottom:14px;}
.footer-brand .brand-text{color:#F6F3ED;}
.footer-brand .brand-mark{background:rgba(246,243,237,.14);color:#F6F3ED;}
.footer-desc{color:rgba(246,243,237,.7);font-size:14px;line-height:1.85;max-width:340px;margin:0;}
.site-footer h4{color:#F6F3ED;font-size:15px;margin-bottom:14px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:9px;}
.footer-links a{color:rgba(246,243,237,.72);font-size:14px;}
.footer-links a:hover{color:var(--ink-soft);}
.footer-note{color:rgba(246,243,237,.66);font-size:13.5px;line-height:1.85;margin:0;}
.site-footer .grid-x > [class*="cell"]{margin-bottom:36px;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:20px;
  border-top:1px solid rgba(246,243,237,.14);
  font-size:13px;
  color:rgba(246,243,237,.58);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--section-pad:64px;}
  .nav-links{display:none;}
  .menu-btn{display:inline-flex;}
  .mobile-drawer{display:flex;}
  .cat-hero{padding-top:132px;}
  .cat-hero-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .cat-hero-media{aspect-ratio:16/9;}
  .feature-block{grid-template-columns:minmax(0,1fr);gap:28px;padding:28px 0;}
  .feature-block.reverse .feature-media{order:0;}
  .faq-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-strip{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:44px;}
}
@media (max-width:768px){
  :root{--section-pad:48px;}
  body{font-size:16px;line-height:1.9;}
  .container{padding:0 20px;}
  .brand-text{font-size:15.5px;}
  .site-header{padding:12px 0;}
  .cat-hero{padding:120px 0 40px;}
  .timeline{gap:16px;}
  .step{grid-template-columns:60px minmax(0,1fr);gap:16px;}
  .step-num{width:46px;height:46px;font-size:15px;}
  .step-rail::before{top:50px;}
  .step-card{padding:20px 18px;}
  .rel-grid{grid-template-columns:minmax(0,1fr);}
  .stat-strip{grid-template-columns:minmax(0,1fr);}
  .spec-row{grid-template-columns:minmax(0,1fr);gap:4px;padding:16px 18px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
}
@media (max-width:520px){
  .cat-hero{padding:108px 0 36px;}
  .cat-hero h1{font-size:27px;}
  .accordion .accordion-title{font-size:15.5px;padding:16px 52px 16px 18px;}
  .accordion .accordion-content{padding:2px 18px 18px;}
  .step{grid-template-columns:1fr;}
  .step-rail{justify-content:flex-start;}
  .step-rail::before{display:none;}
  .step-num{margin-bottom:4px;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .search-form .btn{width:auto;}
}

/* roulang page: category3 */
:root{
  --primary:#0F4C46;
  --primary-dark:#0A332F;
  --accent:#C05B2B;
  --bg:#F6F3ED;
  --bg-2:#FBF8F3;
  --card:#FFFFFF;
  --line:#E4DED3;
  --line-2:#EDE8DE;
  --ink:#1B2320;
  --ink-2:#586360;
  --ink-3:#8B9490;
  --danger:#B23A2E;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:999px;
  --radius-input:10px;
  --radius-badge:8px;
  --shadow-1:0 1px 2px rgba(16,32,29,.04);
  --shadow-2:0 14px 30px -20px rgba(16,32,29,.20);
  --shadow-3:0 22px 44px -26px rgba(16,32,29,.28);
  --ease:220ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.95;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block;background:#EFEBE3;}
a{color:inherit;text-decoration:none;transition:color var(--ease),opacity var(--ease);}
a:hover{color:var(--primary);}
p{margin:0 0 1.2em;}
h1,h2,h3,h4{font-family:inherit;margin:0;color:var(--ink);font-weight:700;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media screen and (min-width:1200px){.container{max-width:1280px;}}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border:1px solid transparent;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;white-space:nowrap;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--accent);color:#FFF8F3;box-shadow:0 10px 22px -14px rgba(192,91,43,.75);}
.btn-primary:hover,.btn-primary:focus{background:#A94C21;color:#FFF8F3;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(192,91,43,.8);}
.btn-primary:active{transform:translateY(0);background:#96431D;}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--line);}
.btn-ghost:hover,.btn-ghost:focus{color:var(--primary);border-color:var(--primary);background:rgba(15,76,70,.05);}
.btn-light{background:rgba(255,255,255,.14);color:#F3F1EA;border-color:rgba(255,255,255,.36);}
.btn-light:hover,.btn-light:focus{background:rgba(255,255,255,.24);color:#FFFFFF;border-color:rgba(255,255,255,.6);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn .fa-arrow-right{transition:transform var(--ease);}
.btn:hover .fa-arrow-right{transform:translateX(4px);}
.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-weight:600;font-size:15px;}
.text-link .fa-arrow-right{transition:transform var(--ease);}
.text-link:hover .fa-arrow-right{transform:translateX(4px);}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:rgba(246,243,237,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.45);
  box-shadow:0 8px 26px -20px rgba(16,32,29,.5);
  transition:background var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{
  background:rgba(246,243,237,.96);
  border-bottom-color:var(--line);
  box-shadow:0 10px 24px -20px rgba(16,32,29,.55);
}
.nav-inner{display:flex;align-items:center;gap:20px;height:76px;transition:height var(--ease);}
.site-header.is-scrolled .nav-inner{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:var(--primary-dark);}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:11px;
  background:linear-gradient(158deg,var(--primary),var(--primary-dark));
  color:#F3F1EA;display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;letter-spacing:0;
}
.brand-text{font-size:17px;letter-spacing:.2px;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:12px;}
.nav-link{position:relative;display:inline-flex;align-items:center;min-height:44px;padding:0 14px;font-size:15px;color:var(--ink-2);border-radius:var(--radius-btn);}
.nav-link:hover{color:var(--primary);background:rgba(15,76,70,.06);}
.nav-link.active{color:var(--primary);font-weight:600;}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;border-radius:2px;background:var(--accent);}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:44px;height:44px;border:1px solid transparent;border-radius:50%;
  background:transparent;color:var(--ink-2);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.icon-btn:hover,.icon-btn:focus{background:rgba(15,76,70,.08);color:var(--primary);border-color:rgba(15,76,70,.12);}
.menu-btn{display:none;}
.search-bar{display:none;padding:0 0 16px;}
.search-bar.is-open{display:block;}
.search-form{
  display:flex;align-items:center;gap:10px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-input);
  padding:8px 8px 8px 16px;box-shadow:var(--shadow-1);
}
.search-form i{color:var(--ink-3);}
.search-form input[type="search"]{
  flex:1 1 auto;border:0;background:transparent;height:40px;font-size:15px;color:var(--ink);outline:none;
}
.search-form input[type="search"]::placeholder{color:var(--ink-3);}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,88vw);z-index:120;
  background:var(--bg-2);border-left:1px solid var(--line);
  padding:20px;display:flex;flex-direction:column;gap:18px;
  transform:translateX(102%);transition:transform 260ms ease;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-search{display:flex;gap:8px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-input);padding:6px 6px 6px 14px;}
.drawer-search input{flex:1;border:0;background:transparent;height:38px;outline:none;font-size:15px;color:var(--ink);}
.drawer-links{display:flex;flex-direction:column;gap:6px;border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2);padding:12px 0;}
.drawer-links a{display:flex;align-items:center;justify-content:space-between;min-height:46px;padding:0 12px;border-radius:var(--radius-badge);font-size:16px;color:var(--ink-2);}
.drawer-links a:hover{background:rgba(15,76,70,.06);color:var(--primary);}
.drawer-links a.active{color:var(--primary);font-weight:600;background:rgba(15,76,70,.07);}
.drawer-foot{margin:auto 0 0;font-size:13px;color:var(--ink-3);line-height:1.7;}
.drawer-overlay{position:fixed;inset:0;background:rgba(10,51,47,.36);opacity:0;visibility:hidden;transition:opacity 260ms ease,visibility 260ms ease;z-index:110;}
.drawer-overlay.is-open{opacity:1;visibility:visible;}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:12px;}
.breadcrumb .sep{color:#C7C0B3;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .current{color:var(--primary);font-weight:600;}

/* ---------- 分类页窄幅标题条 ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--primary-dark);padding:112px 0 44px;}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.42;
}
.cat-hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(10,51,47,.92) 0%,rgba(15,76,70,.82) 52%,rgba(15,76,70,.55) 100%);
}
.cat-hero .container{position:relative;z-index:2;}
.cat-hero h1{
  color:#F5F2EB;font-size:clamp(30px,4.2vw,44px);line-height:1.25;letter-spacing:.5px;
  margin:0 0 14px;
}
.cat-hero .lead{color:#D8DFD9;font-size:16px;line-height:1.9;max-width:640px;margin:0 0 20px;}
.cat-hero .breadcrumb,.cat-hero .breadcrumb a{color:#9FB4AE;}
.cat-hero .breadcrumb .sep{color:#7E958F;}
.cat-hero .breadcrumb .current{color:#EBD6C6;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:var(--radius-badge);font-size:13px;line-height:1.5;
  background:rgba(255,255,255,.12);color:#EDE9E0;border:1px solid rgba(255,255,255,.2);
}
.tag-dark{background:rgba(15,76,70,.08);color:var(--primary);border:1px solid rgba(15,76,70,.14);}
.tag-accent{background:rgba(192,91,43,.09);color:#98451D;border:1px solid rgba(192,91,43,.18);}
.hero-thumb{
  border-radius:var(--radius-img);overflow:hidden;border:1px solid rgba(255,255,255,.28);
  box-shadow:0 26px 46px -30px rgba(0,0,0,.6);background:#0E3A36;
}
.hero-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:1px;
  color:var(--accent);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:clamp(24px,3vw,31px);line-height:1.38;margin-bottom:14px;}
.section-head p{color:var(--ink-2);font-size:16px;margin:0;}

/* ---------- 快捷索引卡 ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.quick-card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 22px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.quick-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D9D1C3;}
.quick-card .idx{
  width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(192,91,43,.1);color:var(--accent);font-weight:700;font-size:15px;
}
.quick-card h3{font-size:19px;line-height:1.5;}
.quick-card p{margin:0;color:var(--ink-2);font-size:14.5px;line-height:1.8;}
.quick-card .text-link{margin-top:auto;font-size:14px;}

/* ---------- FAQ 两栏 ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:56px;align-items:start;}
.faq-aside{position:sticky;top:104px;}
.faq-aside h2{font-size:clamp(24px,3vw,30px);line-height:1.38;margin-bottom:14px;}
.faq-aside p{color:var(--ink-2);font-size:15.5px;margin-bottom:20px;}
.faq-aside .note{
  background:var(--bg);border:1px solid var(--line);border-left:3px solid var(--primary);
  border-radius:var(--radius-badge);padding:14px 16px;font-size:14px;color:var(--ink-2);line-height:1.8;
}
.faq-accordion.accordion{background:transparent;border:0;margin:0;}
.faq-accordion .accordion-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-1);
  transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-accordion .accordion-item:hover{border-color:#D9D1C3;box-shadow:var(--shadow-2);}
.faq-accordion .accordion-title{
  position:relative;display:flex;align-items:center;min-height:56px;
  padding:18px 62px 18px 22px;font-size:17px;font-weight:600;color:var(--ink);line-height:1.55;
  border:0;background:transparent;transition:background var(--ease),color var(--ease);
}
.faq-accordion .accordion-title:hover,.faq-accordion .accordion-title:focus{background:var(--bg-2);color:var(--primary);}
.faq-accordion .accordion-title::before{display:none;}
.faq-accordion .accordion-title::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--accent);
}
.faq-accordion .accordion-item.is-active .accordion-title{background:var(--bg-2);}
.faq-accordion .accordion-item.is-active .accordion-title::after{content:"\f068";}
.faq-accordion .accordion-content{
  border:0;padding:0 22px 22px;background:var(--bg-2);
  color:var(--ink-2);font-size:15px;line-height:1.85;
}
.faq-accordion .accordion-content p{margin:0 0 .8em;}
.faq-accordion .accordion-content p:last-child{margin-bottom:0;}

/* ---------- 对照表格 ---------- */
.table-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line-2);border-radius:var(--radius-img);}
.spec-table{width:100%;min-width:700px;border-collapse:collapse;margin:0;background:var(--card);}
.spec-table thead th{
  background:var(--bg);color:var(--primary-dark);font-size:14px;font-weight:700;letter-spacing:.6px;
  text-align:left;padding:16px 20px;border:0;border-bottom:1px solid var(--line-2);
}
.spec-table tbody td{
  padding:18px 20px;font-size:15px;line-height:1.8;color:var(--ink-2);
  border:0;border-top:1px solid var(--line-2);vertical-align:top;
}
.spec-table tbody tr:first-child td{border-top:0;}
.spec-table tbody td:first-child{color:var(--ink);font-weight:600;width:24%;}
.spec-table tbody tr:hover td{background:var(--bg-2);}
.table-note{margin:18px 0 0;font-size:14px;color:var(--ink-3);line-height:1.8;}
.meta-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px;}
.meta-item{
  background:var(--bg-2);border:1px solid var(--line-2);border-radius:var(--radius-img);
  padding:20px 22px;
}
.meta-item strong{display:block;font-size:15px;color:var(--primary);margin-bottom:8px;}
.meta-item p{margin:0;font-size:14.5px;color:var(--ink-2);line-height:1.8;}

/* ---------- 分类互链 ---------- */
.link-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.link-card{
  display:flex;flex-direction:column;gap:12px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 24px;
  box-shadow:var(--shadow-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.link-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D9D1C3;}
.link-card .badge{align-self:flex-start;}
.link-card h3{font-size:20px;}
.link-card p{margin:0;color:var(--ink-2);font-size:15px;line-height:1.8;}
.link-card .text-link{margin-top:auto;}
.link-card.is-current{background:var(--bg-2);border-color:rgba(15,76,70,.24);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:var(--radius-badge);font-size:12.5px;font-weight:600;line-height:1.6;
  background:rgba(15,76,70,.08);color:var(--primary);
}
.badge-accent{background:rgba(192,91,43,.09);color:#98451D;}
.badge-muted{background:rgba(88,99,96,.08);color:var(--ink-2);}

/* ---------- CTA 深色通栏 ---------- */
.cta-section{padding:0 0 96px;}
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;background:var(--primary-dark);
  padding:48px 44px;display:flex;align-items:center;gap:36px;justify-content:space-between;
  box-shadow:var(--shadow-3);
}
.cta-band-bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.2;
}
.cta-band-mask{position:absolute;inset:0;background:linear-gradient(115deg,rgba(10,51,47,.95),rgba(15,76,70,.78));}
.cta-band .cta-copy{position:relative;z-index:2;max-width:620px;}
.cta-band h2{color:#F5F2EB;font-size:clamp(22px,2.6vw,28px);line-height:1.42;margin-bottom:12px;}
.cta-band p{color:#C6D3CE;font-size:15.5px;margin:0;}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-dark);color:#DDE4E0;padding:76px 0 0;}
.site-footer h4{color:#F2EFE7;font-size:16px;margin:0 0 18px;letter-spacing:.4px;}
.footer-brand{margin-bottom:16px;}
.site-footer .brand-text{color:#F2EFE7;}
.site-footer .brand-mark{background:linear-gradient(158deg,#14655C,#0B3A36);}
.footer-desc{color:#A9BAB5;font-size:14.5px;line-height:1.85;margin:0;max-width:360px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:#C4D1CC;font-size:14.5px;transition:color var(--ease);}
.footer-links a:hover{color:#8FD3C6;}
.footer-note{color:#A9BAB5;font-size:14.5px;line-height:1.85;margin:0;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;display:flex;flex-wrap:wrap;gap:12px 24px;
  align-items:center;justify-content:space-between;
  font-size:13.5px;color:#93A6A1;
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .nav-links{display:none;}
  .menu-btn{display:inline-flex;}
  .section{padding:64px 0;}
  .quick-grid{grid-template-columns:repeat(2,1fr);}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .faq-aside{position:static;}
  .link-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;gap:24px;}
  .cta-section{padding-bottom:64px;}
  .hero-thumb{margin-top:26px;}
}
@media screen and (max-width:639px){
  body{font-size:16px;line-height:1.9;}
  .nav-inner{height:64px;gap:12px;}
  .brand-text{font-size:15px;white-space:normal;line-height:1.3;}
  .brand-mark{width:32px;height:32px;flex:0 0 32px;}
  .nav-actions .btn-primary{display:none;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:30px;}
  .quick-grid{grid-template-columns:1fr;}
  .link-grid{grid-template-columns:1fr;}
  .meta-strip{grid-template-columns:1fr;}
  .cat-hero{padding:96px 0 36px;}
  .table-panel{padding:16px;}
  .cta-band{padding:32px 22px;border-radius:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .site-footer{padding-top:56px;}
  .faq-accordion .accordion-title{font-size:16px;padding:16px 54px 16px 18px;}
  .faq-accordion .accordion-content{padding:0 18px 18px;}
}