/* roulang page: index */
:root{
  --qing:#1F6F5C;
  --qing-dark:#175948;
  --qing-light:#E6F0EC;
  --sand:#D98A3B;
  --ink:#1B241F;
  --sub:#5C6B64;
  --weak:#8A968F;
  --line:#E3DED2;
  --cream:#FAF8F3;
  --cream2:#F1EDE4;
  --deep:#16211E;
  --cta:#14503F;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-cta:20px;
  --sh-1:0 1px 2px rgba(22,33,30,.05), 0 8px 24px rgba(22,33,30,.06);
  --sh-2:0 16px 40px rgba(31,111,92,.12);
  --gap:24px;
  --bar-h:38px;
  --hdr-h:68px;
}

/* ---------- reset / base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body.site-body{
  margin:0;
  padding:0;
  background:var(--cream);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.9;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.01em;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease}
img{display:block;max-width:100%;height:auto;border:0}
button{font:inherit;cursor:pointer;border:0;background:none}
input{font:inherit}
:focus-visible{outline:2px solid var(--sand);outline-offset:2px}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--deep);color:#EAE7DE;font-size:12.5px;line-height:1;height:var(--bar-h);display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:100%}
.topbar-left a{color:#EAE7DE;letter-spacing:.03em}
.topbar-left a:hover{color:#fff}
.topbar-mid{color:#93A49C;letter-spacing:.02em}
.topbar-right{display:flex;align-items:center;gap:12px}
.topbar-right a{color:#D6D2C8}
.topbar-right a:hover{color:#fff}
.topbar-sep{width:1px;height:14px;background:rgba(250,248,243,.22)}
@media (max-width:820px){.topbar-mid{display:none}}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:var(--cream);border-bottom:1px solid transparent;transition:border-color .25s ease,box-shadow .25s ease}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(22,33,30,.06)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:var(--hdr-h)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--qing-light);display:grid;place-items:center;flex-shrink:0}
.brand-mark svg{width:23px;height:23px}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;display:inline-flex;align-items:center;height:var(--hdr-h);padding:0 12px;font-size:15px;color:var(--sub);white-space:nowrap;transition:color .2s ease}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;background:var(--qing);transform:scaleX(0);transform-origin:left;transition:transform .25s ease}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0}

.menu-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px}
.menu-toggle span{width:17px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.menu-toggle:hover{border-color:rgba(31,111,92,.4)}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

@media (max-width:1023px){
  .nav-menu{display:none}
  .nav-right .btn{display:none}
  .menu-toggle{display:flex}
  .brand-text{font-size:16px}
}

/* ---------- 移动端抽屉 ---------- */
.mobile-drawer{position:fixed;inset:0;z-index:70;background:var(--cream);display:flex;flex-direction:column;padding:20px 20px 30px;transform:translateY(-102%);visibility:hidden;transition:transform .34s cubic-bezier(.22,.61,.36,1),visibility .34s}
.mobile-drawer.is-open{transform:translateY(0);visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:var(--hdr-h);border-bottom:1px solid var(--line)}
.drawer-close{width:42px;height:42px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;font-size:20px;color:var(--ink)}
.drawer-close:hover{background:var(--qing-light);border-color:var(--qing-light)}
.drawer-list{margin-top:14px;display:flex;flex-direction:column}
.drawer-list a{padding:16px 4px;font-size:19px;font-weight:600;border-bottom:1px solid var(--line);color:var(--ink)}
.drawer-list a.is-active{color:var(--qing)}
.drawer-foot{margin-top:auto;padding-top:22px}
.drawer-foot .btn{width:100%}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;cursor:pointer;transition:background-color .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--qing);color:#fff}
.btn-primary:hover{background:var(--qing-dark);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;color:var(--qing);border-color:var(--line)}
.btn-ghost:hover{background:var(--qing-light);border-color:var(--qing-light)}
.btn-sand{background:var(--sand);color:#241708}
.btn-sand:hover{background:#C57A2E;transform:translateY(-1px);box-shadow:0 14px 30px rgba(0,0,0,.22)}
.btn-outline-light{background:transparent;color:#F3F0E8;border-color:rgba(243,240,232,.5)}
.btn-outline-light:hover{background:rgba(243,240,232,.12);border-color:#F3F0E8}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;line-height:1;padding:5px 10px;border-radius:999px;background:var(--qing-light);color:var(--qing);font-weight:500;white-space:nowrap}
.badge-line{background:transparent;color:var(--weak);padding:0}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:70px 0 66px;background:var(--cream)}
.hero-band{position:absolute;top:-30px;right:-70px;width:660px;max-width:72%;opacity:.08;pointer-events:none}
.hero-band svg{width:100%;height:auto}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.eyebrow{display:inline-block;font-size:12.5px;letter-spacing:.1em;color:var(--qing);background:var(--qing-light);border-radius:999px;padding:5px 13px;margin-bottom:18px}
.hero-title{font-size:clamp(2rem,3.6vw,3.15rem);font-weight:700;line-height:1.2;letter-spacing:-.02em}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.85;color:var(--sub);max-width:34em}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px}
.hero-tags{margin-top:20px;font-size:13.5px;color:var(--weak);letter-spacing:.02em}
.hero-media{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1)}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-stat{position:absolute;left:16px;bottom:16px;display:flex;align-items:baseline;gap:8px;padding:10px 16px;border-radius:12px;background:rgba(250,248,243,.95);box-shadow:var(--sh-1)}
.stat-num{font-size:26px;font-weight:700;line-height:1;color:var(--qing)}
.stat-label{font-size:13px;color:var(--sub)}
@media (max-width:1023px){
  .hero{padding:52px 0 46px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0;border-top:1px solid var(--line)}
.section-alt{background:var(--cream2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:36px}
.section-title{position:relative;padding-top:12px;font-size:clamp(1.5rem,2.4vw,2rem);font-weight:700}
.section-title::before{content:"";position:absolute;top:0;left:0;width:44px;height:3px;border-radius:2px;background:var(--qing)}
.section-note{font-size:14px;color:var(--sub);max-width:32em;line-height:1.8}
@media (max-width:767px){
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px}
}

/* ---------- 合集目录 mosaic ---------- */
.catalog-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.catalog-card{position:relative;display:flex;flex-direction:column;gap:10px;padding:24px;background:var(--cream);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:border-color .28s ease,box-shadow .28s ease,transform .28s ease}
.catalog-card::after{content:"";position:absolute;left:1px;right:1px;top:1px;height:1px;background:rgba(255,255,255,.9);pointer-events:none}
.catalog-card:hover{border-color:rgba(31,111,92,.35);box-shadow:var(--sh-2);transform:translateY(-2px)}
.catalog-card-wide{grid-column:span 2}
.catalog-card-wide .catalog-name{font-size:23px}
.catalog-num{font-size:36px;font-weight:700;line-height:1;letter-spacing:-.03em;color:rgba(31,111,92,.26)}
.catalog-name{font-size:19px;font-weight:600}
.catalog-desc{font-size:14.5px;line-height:1.75;color:var(--sub);flex:1}
.catalog-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:4px}
.catalog-arrow{color:var(--qing);font-size:16px;transition:transform .25s ease}
.catalog-card:hover .catalog-arrow,.feature-card:hover .catalog-arrow,.news-card:hover .catalog-arrow{transform:translateX(4px)}
@media (max-width:1023px){
  .catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .catalog-card-wide{grid-column:span 2}
}
@media (max-width:639px){
  .catalog-grid{grid-template-columns:1fr}
  .catalog-card-wide{grid-column:span 1}
  .catalog-card-wide .catalog-name{font-size:19px}
}

/* ---------- 精选条目 ---------- */
.feature-grid{display:grid;grid-template-columns:6fr 5fr;gap:32px;align-items:start}
.feature-card{display:block;background:var(--cream);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:border-color .28s ease,box-shadow .28s ease,transform .28s ease}
.feature-card:hover{border-color:rgba(31,111,92,.35);box-shadow:var(--sh-2);transform:translateY(-2px)}
.feature-thumb{overflow:hidden}
.feature-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease-out}
.feature-card:hover .feature-thumb img{transform:scale(1.03)}
.feature-body{padding:22px 24px 24px}
.feature-body .badge{margin-bottom:12px}
.feature-title{font-size:22px;font-weight:600;line-height:1.45}
.feature-text{margin-top:10px;font-size:15px;line-height:1.8;color:var(--sub)}
.feature-link{margin-top:16px;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--qing)}

.pick-list{background:var(--cream);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.pick-item{border-bottom:1px dashed var(--line)}
.pick-item:last-child{border-bottom:none}
.pick-item a{display:flex;align-items:center;gap:14px;padding:17px 20px;transition:background-color .2s ease}
.pick-item a:hover{background:#F7F5EF}
.pick-index{font-size:19px;font-weight:700;line-height:1;color:rgba(31,111,92,.3);min-width:32px}
.pick-content{flex:1;min-width:0}
.pick-title{font-size:15.5px;font-weight:600;line-height:1.5}
.pick-meta{margin-top:5px;font-size:12px;color:var(--weak)}
.pick-tag{font-size:12px;color:var(--qing);background:var(--qing-light);border-radius:999px;padding:4px 10px;white-space:nowrap}
@media (max-width:1023px){
  .feature-grid{grid-template-columns:1fr;gap:20px}
}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.news-card{display:flex;flex-direction:column;background:var(--cream);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:border-color .28s ease,box-shadow .28s ease,transform .28s ease}
.news-card:hover{border-color:rgba(31,111,92,.35);box-shadow:var(--sh-2);transform:translateY(-2px)}
.news-thumb{overflow:hidden}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease-out}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:18px 20px 22px}
.news-title{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-excerpt{font-size:14px;line-height:1.75;color:var(--sub);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;font-size:12.5px;color:var(--weak)}
.empty-state{display:flex;flex-direction:column;align-items:center;gap:12px;padding:56px 24px;text-align:center;background:var(--cream);border:1px dashed var(--line);border-radius:var(--r-card);color:var(--sub)}
.empty-state svg{width:40px;height:40px}
.empty-title{font-size:16px;font-weight:600;color:var(--ink)}
.empty-sub{font-size:14px;color:var(--weak)}
@media (max-width:1023px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:639px){.news-grid{grid-template-columns:1fr}}

/* ---------- 相关推荐 ---------- */
.rec-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.rec-card{display:flex;flex-direction:column;background:var(--cream);border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--sh-1);transition:border-color .28s ease,box-shadow .28s ease,transform .28s ease}
.rec-card:hover{border-color:rgba(31,111,92,.35);box-shadow:var(--sh-2);transform:translateY(-2px)}
.rec-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.rec-body{padding:14px 16px 18px}
.rec-body h3{font-size:15.5px;font-weight:600;line-height:1.55}
.rec-body p{margin-top:8px;font-size:13px;line-height:1.7;color:var(--weak)}
@media (max-width:1023px){.rec-row{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:639px){
  .rec-row{display:flex;gap:14px;overflow-x:auto;padding-bottom:10px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
  .rec-row::-webkit-scrollbar{height:4px}
  .rec-row::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}
  .rec-card{flex:0 0 78%;scroll-snap-align:start}
}

/* ---------- 常见问题 ---------- */
.faq{background:var(--cream);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.faq details{border-bottom:1px solid var(--line)}
.faq details:last-child{border-bottom:none}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px;padding:16px 22px;font-size:16px;font-weight:600;transition:background-color .2s ease}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{background:#F7F5EF}
.faq-icon{position:relative;width:16px;height:16px;flex-shrink:0}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--qing);border-radius:1px}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;transition:transform .25s ease}
.faq details[open] .faq-icon::after{transform:rotate(90deg) scaleX(0)}
.faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--sub)}

/* ---------- CTA ---------- */
.cta-block{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:42px 46px;background:var(--cta);color:#F3F0E8;border-radius:var(--r-cta)}
.cta-block h2{font-size:clamp(1.4rem,2.2vw,1.85rem);font-weight:700;color:#fff}
.cta-block p{margin-top:10px;font-size:15px;line-height:1.8;color:rgba(243,240,232,.78);max-width:34em}
.cta-actions{display:flex;gap:14px;flex-shrink:0}
@media (max-width:767px){
  .cta-block{flex-direction:column;align-items:flex-start;padding:32px 24px;gap:22px}
  .cta-actions{width:100%;flex-wrap:wrap}
  .cta-actions .btn{flex:1 1 160px}
}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:0;background:var(--deep);color:#D8D4C9;border-top:3px solid var(--qing);font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding:56px 0 40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#FAF8F3}
.footer-mark{width:32px;height:32px;border-radius:9px;background:rgba(31,111,92,.55);display:grid;place-items:center;flex-shrink:0}
.footer-mark svg{width:21px;height:21px}
.footer-desc{margin-top:14px;font-size:13.5px;line-height:1.85;color:#93A49C}
.footer-title{font-size:14px;font-weight:600;color:#FAF8F3;margin-bottom:14px}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a{color:#A6B2AB}
.footer-list a:hover{color:#fff}
.subscribe{display:flex;gap:8px;margin-top:4px}
.subscribe-input{flex:1;min-width:0;height:44px;padding:0 14px;border-radius:var(--r-btn);border:1px solid rgba(250,248,243,.2);background:rgba(250,248,243,.06);color:#FAF8F3;font-size:14px;transition:border-color .2s ease,box-shadow .2s ease}
.subscribe-input::placeholder{color:#7F8C85}
.subscribe-input:focus{outline:none;border-color:var(--qing);box-shadow:0 0 0 3px rgba(31,111,92,.28)}
.subscribe-btn{height:44px;padding:0 18px;border-radius:var(--r-btn);background:var(--qing);color:#fff;font-size:14px;font-weight:600;transition:background-color .2s ease,transform .2s ease}
.subscribe-btn:hover{background:var(--qing-dark);transform:translateY(-1px)}
.subscribe-note{margin-top:10px;font-size:12.5px;color:#8A968F;min-height:16px}
.footer-bottom{border-top:1px solid rgba(250,248,243,.12);padding:18px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:12.5px;color:#8A968F}
.footer-bottom a{color:#A6B2AB}
.footer-bottom a:hover{color:#fff}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:40px 0 28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .wrap{padding:0 16px}
}

/* roulang page: article */
:root{
  --brand:#1F6F5C;
  --brand-dark:#175948;
  --brand-soft:#E6F0EC;
  --accent:#D98A3B;
  --ink:#1B241F;
  --ink-2:#5C6B64;
  --ink-3:#8A968F;
  --line:#E3DED2;
  --bg:#FAF8F3;
  --bg-2:#F1EDE4;
  --bg-soft:#F7F5EF;
  --dark:#16211E;
  --deep:#14503F;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-cta:20px;
  --shadow-1:0 1px 2px rgba(22,33,30,.05),0 8px 24px rgba(22,33,30,.06);
  --shadow-2:0 16px 40px rgba(31,111,92,.12);
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:-.01em;line-height:1.35}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0 0 1.2em;padding-left:1.35em}
figure{margin:0 0 1.4em}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}

/* ===== 顶部信息条 ===== */
.topbar{background:var(--dark);color:#E6EDE9;font-size:12.5px}
.topbar-inner{height:38px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left a{color:#E6EDE9;font-weight:600;letter-spacing:.02em}
.topbar-left a:hover{color:#fff}
.topbar-mid{color:#A9B7B0}
.topbar-right{display:flex;align-items:center;gap:12px}
.topbar-right a{color:#D7E1DC}
.topbar-right a:hover{color:#fff}
.topbar-right .vline{width:1px;height:14px;background:rgba(230,237,233,.28)}
@media (max-width:767px){.topbar-mid{display:none}}

/* ===== 主导航 ===== */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg);transition:box-shadow .25s ease,border-color .25s ease}
.site-header.is-scrolled{border-bottom:1px solid var(--line);box-shadow:0 4px 18px rgba(22,33,30,.06)}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:34px;height:34px;display:inline-flex}
.brand-mark svg{width:100%;height:100%}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;padding:8px 12px;font-size:14.5px;color:var(--ink-2);border-radius:8px;transition:color .2s ease,background .2s ease}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;background:var(--brand);border-radius:2px}
.header-actions{display:flex;align-items:center;gap:12px}
.hamburger{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:10px;padding:11px 10px;cursor:pointer}
.hamburger span{display:block;height:2px;background:var(--ink);border-radius:2px;margin:4px 0;transition:.25s}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-drawer{display:none;background:var(--bg);border-top:1px solid var(--line);padding:8px 20px 28px}
.mobile-drawer.is-open{display:block}
.drawer-link{display:block;padding:14px 4px;font-size:17px;font-weight:600;color:var(--ink);border-bottom:1px dashed var(--line)}
.drawer-link:hover{color:var(--brand)}
.drawer-cta{display:block;text-align:center;margin-top:20px}
@media (max-width:1023px){
  .nav-menu{display:none}
  .hamburger{display:block}
  .header-actions .btn-sm{display:none}
}

/* ===== 按钮与徽章 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--r-btn);font-size:14.5px;font-weight:600;padding:11px 20px;cursor:pointer;transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease}
.btn:active{transform:translateY(1px)}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--brand-soft);border-color:rgba(31,111,92,.35);color:var(--brand-dark)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#c47a2f;transform:translateY(-1px);box-shadow:0 14px 30px rgba(217,138,59,.28)}
.btn-light{background:transparent;color:#F3F7F5;border-color:rgba(250,248,243,.5)}
.btn-light:hover{background:rgba(250,248,243,.12);border-color:#FAF8F3}
.badge{display:inline-flex;align-items:center;gap:6px;background:var(--brand-soft);color:var(--brand-dark);font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;line-height:1.6}
.badge-quiet{background:var(--bg-2);color:var(--ink-2)}

/* ===== 文章头部 ===== */
.article-hero{position:relative;overflow:hidden;background:var(--bg);border-bottom:1px solid var(--line);padding:44px 0 40px}
.article-hero::after{content:"";position:absolute;right:-70px;top:-50px;width:440px;height:300px;background:url(/assets/images/backpic/back-1.png) center/cover no-repeat;opacity:.1;border-radius:24px;pointer-events:none}
.breadcrumb{position:relative;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--ink-3)}
.breadcrumb .crumb-current{color:var(--ink-3);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{font-size:clamp(1.75rem,3.6vw,2.7rem);font-weight:700;max-width:22ch;margin:14px 0 16px}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--ink-3)}
.article-meta .dot{color:var(--line)}
@media (max-width:767px){
  .article-hero{padding:30px 0 28px}
  .breadcrumb .crumb-current{max-width:28ch}
}

/* ===== 正文布局 ===== */
.section{padding:64px 0}
.section-line{border-top:1px solid var(--line)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:48px;align-items:start}
.article-body{max-width:780px;font-size:17px;line-height:1.95;color:var(--ink)}
.article-body p{margin:0 0 1.2em}
.article-body h2{position:relative;padding-left:16px;font-size:clamp(1.25rem,2vw,1.5rem);margin:40px 0 14px}
.article-body h2::before{content:"";position:absolute;left:0;top:.32em;bottom:.32em;width:4px;border-radius:2px;background:var(--brand)}
.article-body h3{font-size:1.15rem;font-weight:600;margin:28px 0 10px}
.article-body h4{font-size:1.05rem;font-weight:600;margin:22px 0 8px}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.2em}
.article-body ul li{margin:6px 0}
.article-body ul li::marker{color:var(--brand);font-size:1.05em}
.article-body ol li::marker{color:var(--brand);font-weight:700}
.article-body blockquote{margin:24px 0;background:var(--bg-2);border-left:3px solid var(--accent);border-radius:0 12px 12px 0;padding:16px 20px;color:var(--ink-2);font-size:16px}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body figure{margin:24px 0}
.article-body figure img{border-radius:var(--r-img);width:100%}
.article-body figcaption{font-size:12.5px;color:var(--ink-3);text-align:center;margin-top:10px}
.article-body img{border-radius:var(--r-img)}
.article-body a{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(31,111,92,.35)}
.article-body a:hover{text-decoration-color:var(--brand);color:var(--brand)}
.article-body code{background:var(--bg-2);padding:2px 6px;border-radius:6px;font-size:.92em}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.article-body th{background:var(--deep);color:#FAF8F3;text-align:left;padding:12px 14px;font-weight:600}
.article-body td{padding:12px 14px;border-top:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:var(--bg-2)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* 侧栏 */
.article-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:16px}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow-1)}
.aside-title{font-size:13px;color:var(--ink-3);letter-spacing:.08em;margin-bottom:12px;font-weight:600}
.aside-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.aside-list a{display:block;padding:9px 10px;border-radius:8px;font-size:14.5px;color:var(--ink-2);transition:background .2s ease,color .2s ease}
.aside-list a:hover{background:var(--bg-soft);color:var(--brand-dark)}
.aside-note{font-size:13px;color:var(--ink-3);line-height:1.8}

/* 标签与 CTA */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:36px 0 24px}
.tag{font-size:12.5px;color:var(--ink-2);background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 12px}
.tag:hover{border-color:rgba(31,111,92,.4);color:var(--brand-dark)}
.cta-strip{display:flex;align-items:center;justify-content:space-between;gap:22px;background:var(--deep);color:#F4F8F6;border-radius:var(--r-cta);padding:26px 30px;margin:24px 0 40px}
.cta-strip h3{font-size:1.15rem;margin-bottom:6px}
.cta-strip p{font-size:14px;color:#C9DCD4;margin:0}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:767px){
  .cta-strip{flex-direction:column;align-items:flex-start;padding:22px 20px}
}

/* 上下篇 */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:48px}
.pager a{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:18px 20px;box-shadow:var(--shadow-1);transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease}
.pager a:hover{border-color:rgba(31,111,92,.4);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.pager .pager-label{font-size:12.5px;color:var(--ink-3);margin-bottom:6px}
.pager .pager-title{font-size:15px;font-weight:600}
.pager .next{text-align:right}
@media (max-width:640px){.pager{grid-template-columns:1fr}}

/* 相关推荐 */
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .3s ease,box-shadow .3s ease,transform .3s ease;display:block}
.card:hover{border-color:rgba(31,111,92,.4);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.card-thumb{aspect-ratio:16/10;overflow:hidden;border-radius:var(--r-img);margin:12px 12px 0}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.card:hover .card-thumb img{transform:scale(1.03)}
.card-body{padding:16px 18px 20px}
.card-body h3{font-size:1.06rem;margin-bottom:8px}
.card-body p{font-size:14px;color:var(--ink-2);margin:0 0 12px;line-height:1.8}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12.5px;color:var(--ink-3)}
@media (max-width:1023px){.rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.rec-grid{grid-template-columns:1fr}}

.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.section-head h2{font-size:clamp(1.35rem,2.4vw,1.8rem);position:relative;padding-top:12px}
.section-head h2::before{content:"";position:absolute;left:0;top:0;width:34px;height:4px;border-radius:2px;background:var(--brand)}
.section-head p{font-size:14px;color:var(--ink-2);margin:0}

.back-link{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--brand-dark);font-size:15px}
.back-link .arrow{transition:transform .25s ease}
.back-link:hover .arrow{transform:translateX(4px)}

/* 空态 */
.empty-state{background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);padding:56px 24px;text-align:center}
.empty-state svg{width:46px;height:46px;margin:0 auto 16px;color:var(--brand);opacity:.75}
.empty-title{font-size:1.15rem;font-weight:650;margin-bottom:8px}
.empty-text{font-size:14.5px;color:var(--ink-2);margin-bottom:22px}

/* ===== 页脚 ===== */
.site-footer{margin-top:0;background:var(--dark);color:#E6EDE9;border-top:3px solid var(--brand);padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#FAF8F3;margin-bottom:14px}
.footer-mark{width:32px;height:32px;display:inline-flex}
.footer-mark svg{width:100%;height:100%}
.footer-desc{font-size:13.5px;line-height:1.9;color:#A9B7B0;margin:0}
.footer-title{font-size:13px;font-weight:600;color:#8FA39A;letter-spacing:.08em;margin:0 0 14px}
.footer-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-list a{font-size:14px;color:#D7E1DC}
.footer-list a:hover{color:#fff}
.subscribe{display:flex;flex-wrap:wrap;gap:8px}
.subscribe-input{flex:1 1 150px;height:44px;border-radius:10px;border:1px solid rgba(230,237,233,.24);background:rgba(250,248,243,.06);color:#FAF8F3;padding:0 14px;font-size:14px}
.subscribe-input::placeholder{color:#8FA39A}
.subscribe-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,111,92,.35)}
.subscribe-btn{height:44px;padding:0 18px;border-radius:10px;border:0;background:var(--brand);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s ease,transform .2s ease}
.subscribe-btn:hover{background:var(--brand-dark);transform:translateY(-1px)}
.subscribe-note{flex:1 1 100%;font-size:12.5px;color:#8FA39A;margin:2px 0 0}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid rgba(230,237,233,.14);padding:18px 0 26px;font-size:12.5px;color:#8FA39A}
.footer-bottom a{color:#C9DCD4}
.footer-bottom a:hover{color:#fff}
@media (max-width:1023px){
  .article-layout{grid-template-columns:1fr;gap:32px}
  .article-aside{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .section{padding:48px 0}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .article-body{font-size:16.5px}
}

/* roulang page: category2 */
:root{
  --primary:#1F6F5C;
  --primary-dark:#175948;
  --primary-soft:#E6F0EC;
  --accent:#D98A3B;
  --ink:#1B241F;
  --ink-2:#5C6B64;
  --ink-3:#8A968F;
  --line:#E3DED2;
  --bg:#FAF8F3;
  --bg-2:#F1EDE4;
  --bg-hover:#F7F5EF;
  --dark:#16211E;
  --deep:#14503F;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-pill:999px;
  --r-cta:20px;
  --sh-1:0 1px 2px rgba(22,33,30,.05),0 8px 24px rgba(22,33,30,.06);
  --sh-2:0 16px 40px rgba(31,111,92,.12);
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px;}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--dark);color:#E9E5DA;font-size:12.5px;line-height:38px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:38px;}
.topbar-left a{color:#F3F0E7;border-bottom:1px dotted rgba(233,229,218,.45);}
.topbar-left a:hover{color:#fff;border-bottom-color:#fff;}
.topbar-mid{color:rgba(233,229,218,.72);}
.topbar-right{display:flex;align-items:center;gap:12px;}
.topbar-right a{color:rgba(233,229,218,.9);}
.topbar-right a:hover{color:#fff;}
.topbar-sep{width:1px;height:14px;background:rgba(233,229,218,.28);display:inline-block;}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg);border-bottom:1px solid transparent;transition:box-shadow .25s ease,border-color .25s ease;}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(22,33,30,.07);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;}
.brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;background:var(--primary-soft);display:flex;align-items:center;justify-content:center;}
.brand-mark svg{width:24px;height:24px;}
.nav-menu{display:flex;align-items:center;gap:6px;}
.nav-link{position:relative;padding:22px 12px;font-size:14.5px;color:var(--ink-2);transition:color .2s ease;}
.nav-link:hover{color:var(--primary);}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:16px;height:2px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;border-radius:2px;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:var(--r-btn);cursor:pointer;padding:0;align-items:center;justify-content:center;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 移动抽屉 */
.nav-drawer{position:fixed;inset:0;background:var(--bg);z-index:80;display:none;flex-direction:column;padding:20px;}
.nav-drawer.is-open{display:flex;}
.nav-drawer-head{display:flex;align-items:center;justify-content:space-between;height:52px;border-bottom:1px solid var(--line);}
.nav-drawer-title{font-weight:700;font-size:16px;}
.nav-drawer-close{width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;cursor:pointer;font-size:18px;line-height:1;}
.nav-drawer-list{margin-top:18px;display:flex;flex-direction:column;}
.nav-drawer-list a{padding:18px 4px;font-size:19px;font-weight:600;border-bottom:1px solid var(--line);color:var(--ink);}
.nav-drawer-list a.is-active{color:var(--primary);}
.nav-drawer-foot{margin-top:auto;padding-top:20px;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 12px 26px rgba(31,111,92,.22);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;color:var(--primary);border-color:rgba(31,111,92,.28);}
.btn-ghost:hover{background:var(--primary-soft);transform:translateY(-1px);}
.btn-accent{background:var(--accent);color:#2B1A08;}
.btn-accent:hover{background:#C97B2E;transform:translateY(-1px);box-shadow:0 12px 26px rgba(217,138,59,.26);}
.btn-outline-light{background:transparent;color:#F4F1E8;border-color:rgba(244,241,232,.55);}
.btn-outline-light:hover{background:rgba(244,241,232,.12);transform:translateY(-1px);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:14.5px;}
.link-arrow svg{transition:transform .22s ease;}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 通用区块 ---------- */
.section{padding:80px 0;border-top:1px solid var(--line);}
.section:first-of-type{border-top:0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.h2{font-size:clamp(1.5rem,2.4vw,2rem);font-weight:700;letter-spacing:-.01em;position:relative;padding-top:14px;}
.h2::before{content:"";position:absolute;top:0;left:0;width:44px;height:3px;background:var(--primary);border-radius:3px;}
.section-sub{color:var(--ink-2);font-size:14.5px;max-width:520px;line-height:1.8;}
.badge{display:inline-flex;align-items:center;gap:6px;background:var(--primary-soft);color:var(--primary);font-size:12px;padding:4px 10px;border-radius:var(--r-pill);line-height:1.6;font-weight:600;}
.badge-accent{background:rgba(217,138,59,.14);color:#A9642A;}

/* ---------- 页头 banner ---------- */
.page-banner{position:relative;background:var(--bg-2);overflow:hidden;border-bottom:1px solid var(--line);}
.page-banner::after{content:"";position:absolute;inset:0;background-image:linear-gradient(105deg,rgba(250,248,243,.96) 0%,rgba(250,248,243,.86) 46%,rgba(250,248,243,.62) 100%),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center right;opacity:.9;pointer-events:none;}
.page-banner .wrap{position:relative;z-index:2;padding-top:56px;padding-bottom:56px;}
.crumbs{font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.crumbs a{color:var(--ink-2);}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{color:var(--ink-3);}
.crumbs .current{color:var(--ink-3);}
.page-banner h1{font-size:clamp(2rem,4vw,3.1rem);font-weight:700;letter-spacing:-.01em;line-height:1.25;margin-top:18px;max-width:820px;}
.page-banner .banner-desc{margin-top:16px;color:var(--ink-2);font-size:16.5px;max-width:660px;line-height:1.85;}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}

/* ---------- 速览数据 ---------- */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.kpi{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 20px;box-shadow:var(--sh-1);box-shadow:inset 0 0 0 1px rgba(255,255,255,.7),var(--sh-1);transition:box-shadow .3s ease,border-color .3s ease,transform .3s ease;}
.kpi:hover{border-color:rgba(31,111,92,.3);box-shadow:var(--sh-2);transform:translateY(-2px);}
.kpi-num{font-size:clamp(1.7rem,2.6vw,2.2rem);font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2;}
.kpi-label{margin-top:6px;font-size:14px;color:var(--ink-2);}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:8px;}
.timeline::before{content:"";position:absolute;left:19px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--primary) 0%,rgba(31,111,92,.22) 100%);border-radius:2px;}
.tl-item{position:relative;padding-left:64px;padding-bottom:44px;}
.tl-item:last-child{padding-bottom:0;}
.tl-node{position:absolute;left:6px;top:6px;width:28px;height:28px;border-radius:50%;background:#fff;border:2px solid var(--primary);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;}
.tl-body{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px 24px 22px;box-shadow:var(--sh-1);transition:border-color .3s ease,box-shadow .3s ease,transform .3s ease;}
.tl-body:hover{border-color:rgba(31,111,92,.3);box-shadow:var(--sh-2);transform:translateY(-2px);}
.tl-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.tl-head h3{font-size:1.25rem;font-weight:700;letter-spacing:-.01em;}
.tl-body p{margin-top:12px;color:var(--ink-2);font-size:15.5px;line-height:1.9;}
.tl-body p strong{color:var(--ink);font-weight:600;}
.tl-figure{margin-top:16px;}
.tl-figure img{width:100%;aspect-ratio:16/7;object-fit:cover;border:1px solid var(--line);}
.tl-figure figcaption{margin-top:8px;font-size:12.5px;color:var(--ink-3);}
.tl-meta{margin-top:14px;display:flex;flex-wrap:wrap;gap:10px;font-size:12.5px;color:var(--ink-3);}
.tl-meta span{display:inline-flex;align-items:center;gap:6px;}
.dot{width:5px;height:5px;border-radius:50%;background:var(--primary);display:inline-block;}

/* ---------- FAQ ---------- */
.faq-wrap{margin-top:8px;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:#fff;box-shadow:var(--sh-1);}
.faq-item{border-top:1px solid var(--line);}
.faq-item:first-child{border-top:0;}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;height:60px;padding:0 22px;cursor:pointer;font-weight:600;font-size:15.5px;list-style:none;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:var(--bg-hover);}
.faq-item summary .icon{position:relative;width:16px;height:16px;flex:0 0 16px;}
.faq-item summary .icon::before,.faq-item summary .icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.faq-item summary .icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-item summary .icon::after{top:0;left:7px;width:2px;height:16px;}
.faq-item[open] summary .icon::after{transform:rotate(90deg);opacity:0;}
.faq-item .faq-answer{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ---------- 相关分类卡 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rel-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:border-color .3s ease,box-shadow .3s ease,transform .3s ease;}
.rel-card:hover{border-color:rgba(31,111,92,.3);box-shadow:var(--sh-2);transform:translateY(-3px);}
.rel-media{overflow:hidden;}
.rel-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform .3s ease-out;}
.rel-card:hover .rel-media img{transform:scale(1.03);}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{font-size:1.06rem;font-weight:700;}
.rel-body p{font-size:14.5px;color:var(--ink-2);line-height:1.85;}
.rel-body .link-arrow{margin-top:auto;}

/* ---------- CTA 区块 ---------- */
.cta-block{background:var(--deep);color:#F4F1E8;border-radius:var(--r-cta);padding:48px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-block h2{font-size:clamp(1.4rem,2.2vw,1.85rem);font-weight:700;letter-spacing:-.01em;color:#FBF9F3;}
.cta-block p{margin-top:10px;color:rgba(244,241,232,.78);font-size:15px;max-width:520px;line-height:1.85;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#E9E5DA;border-top:3px solid var(--primary);margin-top:0;}
.site-footer .wrap{padding-top:64px;padding-bottom:28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16.5px;color:#FBF9F3;}
.footer-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;background:rgba(230,240,236,.12);display:flex;align-items:center;justify-content:center;}
.footer-mark svg{width:22px;height:22px;}
.footer-desc{margin-top:14px;font-size:14px;line-height:1.9;color:rgba(233,229,218,.72);max-width:340px;}
.footer-title{font-size:14px;font-weight:700;color:#FBF9F3;margin-bottom:14px;}
.footer-list li{margin-bottom:10px;}
.footer-list a{font-size:14px;color:rgba(233,229,218,.74);transition:color .2s ease,padding-left .2s ease;}
.footer-list a:hover{color:#fff;padding-left:4px;}
.subscribe{display:flex;flex-wrap:wrap;gap:10px;}
.subscribe-input{flex:1 1 170px;height:44px;padding:0 14px;border-radius:var(--r-btn);border:1px solid rgba(233,229,218,.28);background:rgba(255,255,255,.06);color:#F4F1E8;font-size:14px;}
.subscribe-input::placeholder{color:rgba(233,229,218,.5);}
.subscribe-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,111,92,.35);}
.subscribe-btn{height:44px;padding:0 18px;border-radius:var(--r-btn);border:1px solid transparent;background:var(--primary);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background-color .2s ease,transform .2s ease;}
.subscribe-btn:hover{background:var(--primary-dark);transform:translateY(-1px);}
.subscribe-note{flex:1 1 100%;font-size:12.5px;color:rgba(233,229,218,.66);}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(233,229,218,.16);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(233,229,218,.66);}
.footer-bottom a{color:rgba(233,229,218,.8);}
.footer-bottom a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-menu{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .btn-primary{display:none;}
  .kpi-grid{grid-template-columns:repeat(2,1fr);}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
  .topbar-mid{display:none;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  .wrap{padding:0 16px;}
  .page-banner .wrap{padding-top:42px;padding-bottom:42px;}
  .page-banner h1{margin-top:14px;}
  .cta-block{padding:32px 24px;}
  .tl-item{padding-left:52px;}
  .timeline::before{left:15px;}
  .tl-node{left:2px;width:26px;height:26px;}
}
@media (max-width:639px){
  .kpi-grid{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .section{padding:48px 0;}
  .tl-body{padding:20px 18px;}
  .section-head{margin-bottom:26px;}
  .brand span.brand-text{font-size:15.5px;}
  .header-inner{gap:12px;}
}

/* roulang page: category1 */
:root{
  --ink:#1B241F;
  --ink-2:#5C6B64;
  --ink-3:#8A968F;
  --line:#E3DED2;
  --line-soft:#EFEAE0;
  --bg:#FAF8F3;
  --bg-2:#F1EDE4;
  --green:#1F6F5C;
  --green-d:#175948;
  --green-l:#E6F0EC;
  --orange:#D98A3B;
  --dark:#16211E;
  --deep:#14503F;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:10px;
  --radius-block:20px;
  --shadow-1:0 1px 2px rgba(22,33,30,.05),0 8px 24px rgba(22,33,30,.06);
  --shadow-2:0 16px 40px rgba(31,111,92,.12);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
.site-body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
.site-body img{max-width:100%;height:auto;display:block;}
.site-body a{color:inherit;text-decoration:none;}
.site-body button,.site-body input{font:inherit;color:inherit;}
.site-body ul,.site-body ol{list-style:none;margin:0;padding:0;}
.site-body p{margin:0;}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px;width:100%;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--dark);color:#EDEAE2;font-size:12.5px;height:38px;display:flex;align-items:center;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:8px;white-space:nowrap;}
.topbar-left a{color:#EDEAE2;border-bottom:1px solid rgba(230,240,236,.28);padding-bottom:1px;}
.topbar-left a:hover{color:#fff;border-bottom-color:#E6F0EC;}
.topbar-mid{color:#AEBAB4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.topbar-right{display:flex;align-items:center;white-space:nowrap;}
.topbar-right a{padding:0 12px;color:#D6DED9;}
.topbar-right a:hover{color:#fff;}
.topbar-sep{width:1px;height:14px;background:rgba(230,240,236,.22);display:inline-block;}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg);border-bottom:1px solid transparent;transition:box-shadow .25s ease,border-color .25s ease;}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:0 8px 24px rgba(22,33,30,.07);}
.nav-inner{display:flex;align-items:center;gap:18px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16.5px;letter-spacing:-.01em;color:var(--ink);}
.brand-mark{width:32px;height:32px;flex:0 0 32px;display:block;}
.brand-mark svg{width:100%;height:100%;display:block;}
.brand-text{white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{position:relative;display:inline-block;padding:22px 12px;font-size:14.5px;color:var(--ink-2);transition:color .2s ease;white-space:nowrap;}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:15px;height:2px;background:var(--green);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(.6);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-cta{margin-left:12px;}
.burger{display:none;margin-left:auto;width:42px;height:42px;border:1px solid var(--line);border-radius:11px;background:#fff;align-items:center;justify-content:center;cursor:pointer;transition:.2s;}
.burger:hover{border-color:var(--green);background:var(--green-l);}
.burger span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* 移动端抽屉 */
.drawer{position:fixed;inset:0;z-index:120;background:var(--bg);display:flex;flex-direction:column;padding:18px 20px 28px;transform:translateY(-102%);transition:transform .32s cubic-bezier(.4,0,.2,1);}
.drawer.is-open{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:48px;}
.drawer-close{width:42px;height:42px;border-radius:11px;border:1px solid var(--line);background:#fff;cursor:pointer;font-size:18px;line-height:1;}
.drawer-menu{display:flex;flex-direction:column;gap:4px;margin:22px 0 0;}
.drawer-menu a{font-size:19px;font-weight:600;padding:16px 4px;border-bottom:1px solid var(--line-soft);color:var(--ink);}
.drawer-menu a.is-active{color:var(--green);}
.drawer-cta{margin-top:auto;}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 1px 2px rgba(22,33,30,.08);}
.btn-primary:hover{background:var(--green-d);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{background:var(--green-l);border-color:rgba(31,111,92,.35);}
.btn-accent{background:var(--orange);color:#fff;}
.btn-accent:hover{filter:brightness(.94);transform:translateY(-1px);box-shadow:0 14px 30px rgba(217,138,59,.28);}
.btn-outline-light{background:transparent;border-color:rgba(230,240,236,.55);color:#F3F1EA;}
.btn-outline-light:hover{background:rgba(230,240,236,.12);border-color:#E6F0EC;}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn:focus-visible,.nav-link:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--orange);outline-offset:2px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--green);font-weight:600;}
.link-arrow i{transition:transform .22s ease;font-style:normal;}
.link-arrow:hover i{transform:translateX(4px);}

/* ============ 通用板块 / 标题 ============ */
.section{padding:78px 0;border-top:1px solid var(--line);}
.section:first-of-type{border-top:0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:34px;}
.h2{position:relative;font-size:clamp(1.5rem,2.4vw,2rem);font-weight:700;letter-spacing:-.01em;line-height:1.4;margin:0;padding-top:14px;}
.h2::before{content:"";position:absolute;top:0;left:0;width:38px;height:4px;border-radius:2px;background:var(--green);}
.section-sub{font-size:14.5px;color:var(--ink-2);max-width:520px;}
.eyebrow{font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);font-weight:600;}
.badge{display:inline-flex;align-items:center;gap:6px;background:var(--green-l);color:var(--green);font-size:12px;padding:4px 10px;border-radius:999px;line-height:1.7;white-space:nowrap;}

/* ============ 页头 banner ============ */
.page-banner{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.page-banner-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.9;}
.page-banner-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(104deg,rgba(250,248,243,.97) 0%,rgba(250,248,243,.92) 44%,rgba(250,248,243,.6) 100%);}
.page-banner-inner{position:relative;z-index:1;padding:46px 0 58px;max-width:820px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px;flex-wrap:wrap;}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--green);}
.crumb .sep{color:var(--ink-3);}
.crumb .current{color:var(--ink-3);}
.page-title{font-size:clamp(2rem,4vw,3rem);font-weight:700;letter-spacing:-.01em;line-height:1.24;margin:0 0 16px;}
.page-lead{font-size:16.5px;color:var(--ink-2);max-width:640px;}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.banner-tag{font-size:13px;color:var(--ink-2);border:1px solid var(--line);background:rgba(255,255,255,.7);border-radius:999px;padding:5px 12px;}

/* ============ KPI 数据条 ============ */
.kpi-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:-34px;position:relative;z-index:2;}
.kpi{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:20px 22px;box-shadow:var(--shadow-1);box-shadow:var(--shadow-1),inset 1px 1px 0 rgba(255,255,255,.7);transition:box-shadow .3s ease,border-color .3s ease,transform .3s ease;}
.kpi:hover{border-color:rgba(31,111,92,.3);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.kpi-num{font-size:2rem;font-weight:700;color:var(--green);line-height:1.2;letter-spacing:-.02em;}
.kpi-label{font-size:14px;font-weight:600;margin-top:4px;}
.kpi-note{font-size:12.5px;color:var(--ink-3);line-height:1.7;}

/* ============ 交错图文 ============ */
.alt-row{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center;padding:44px 0;border-bottom:1px dashed var(--line);}
.alt-row:last-child{border-bottom:0;padding-bottom:0;}
.alt-row.reverse{grid-template-columns:7fr 5fr;}
.alt-row.reverse .alt-media{order:2;}
.alt-media{position:relative;border-radius:var(--radius-img);overflow:hidden;box-shadow:var(--shadow-1);background:var(--bg-2);}
.alt-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);transition:transform .3s ease-out;}
.alt-media:hover img{transform:scale(1.03);}
.alt-media-tag{position:absolute;left:14px;top:14px;background:rgba(22,33,30,.78);color:#EFEAE0;font-size:12px;padding:4px 10px;border-radius:999px;}
.alt-index{font-size:13px;font-weight:700;color:var(--orange);letter-spacing:.12em;}
.alt-title{font-size:1.25rem;font-weight:700;line-height:1.5;margin:8px 0 14px;letter-spacing:-.01em;}
.alt-body p + p{margin-top:12px;}
.alt-body p{color:var(--ink-2);font-size:15.5px;line-height:1.95;}
.alt-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}

/* ============ 核对清单 ============ */
.check-panel{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-block);padding:36px;display:grid;grid-template-columns:1fr 1fr;gap:14px 32px;}
.check-item{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px solid rgba(227,222,210,.9);}
.check-item:nth-last-child(-n+2){border-bottom:0;}
.check-mark{flex:0 0 22px;width:22px;height:22px;border-radius:50%;background:var(--green-l);color:var(--green);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:5px;}
.check-text strong{display:block;font-size:15px;font-weight:600;color:var(--ink);}
.check-text span{font-size:13.5px;color:var(--ink-2);line-height:1.8;}

/* ============ FAQ ============ */
.faq-box{border:1px solid var(--line);border-radius:var(--radius-block);overflow:hidden;background:#fff;box-shadow:var(--shadow-1);}
.faq-item{border-top:1px solid var(--line);}
.faq-item:first-child{border-top:0;}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px;padding:16px 24px;font-size:15.5px;font-weight:600;color:var(--ink);transition:background .2s ease;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:#F7F5EF;}
.faq-sign{position:relative;flex:0 0 20px;width:20px;height:20px;border-radius:50%;border:1px solid rgba(31,111,92,.35);}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--green);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.faq-sign::before{left:5px;right:5px;top:9px;height:1.6px;}
.faq-sign::after{top:5px;bottom:5px;left:9px;width:1.6px;}
.faq-item[open] .faq-sign::after{transform:scaleY(0);opacity:0;}
.faq-item[open] summary{background:#F7F5EF;}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ============ 相关分类卡 ============ */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rcard{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:border-color .3s ease,box-shadow .3s ease,transform .3s ease;}
.rcard:hover{border-color:rgba(31,111,92,.3);box-shadow:var(--shadow-2);transform:translateY(-3px);}
.rcard-thumb{overflow:hidden;background:var(--bg-2);}
.rcard-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform .3s ease-out;}
.rcard:hover .rcard-thumb img{transform:scale(1.03);}
.rcard-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rcard-title{font-size:1.06rem;font-weight:700;line-height:1.55;}
.rcard-text{font-size:14px;color:var(--ink-2);line-height:1.85;}
.rcard-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:6px;}

/* ============ 结尾 CTA ============ */
.cta-block{background:var(--deep);color:#F3F1EA;border-radius:var(--radius-block);padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;position:relative;overflow:hidden;}
.cta-block::after{content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;background:rgba(230,240,236,.06);}
.cta-title{font-size:clamp(1.25rem,2vw,1.6rem);font-weight:700;margin:0 0 8px;letter-spacing:-.01em;}
.cta-text{font-size:14.5px;color:rgba(243,241,234,.82);max-width:520px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#E7E4DB;border-top:3px solid var(--green);padding:56px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.5fr;gap:34px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:#F3F1EA;}
.footer-mark{width:30px;height:30px;flex:0 0 30px;}
.footer-mark svg{width:100%;height:100%;}
.footer-desc{font-size:13.5px;line-height:1.9;color:#A9B5AF;margin-top:14px;max-width:340px;}
.footer-title{font-size:14px;font-weight:700;color:#F3F1EA;margin:0 0 14px;}
.footer-list li{margin-bottom:10px;}
.footer-list a{font-size:13.5px;color:#A9B5AF;transition:color .2s ease,padding-left .2s ease;}
.footer-list a:hover{color:#F3F1EA;padding-left:3px;}
.subscribe{display:flex;gap:8px;margin-top:4px;flex-wrap:wrap;}
.subscribe-input{flex:1 1 160px;height:44px;border-radius:var(--radius-btn);border:1px solid rgba(230,240,236,.22);background:rgba(250,248,243,.06);color:#F3F1EA;padding:0 14px;font-size:13.5px;transition:border-color .2s ease,box-shadow .2s ease;}
.subscribe-input::placeholder{color:#7E8C86;}
.subscribe-input:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(31,111,92,.35);}
.subscribe-btn{height:44px;padding:0 18px;border-radius:var(--radius-btn);border:1px solid transparent;background:var(--green);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:.2s;}
.subscribe-btn:hover{background:var(--green-d);}
.subscribe-note{font-size:12.5px;color:#8FBBA9;min-height:18px;margin-top:4px;width:100%;}
.footer-bottom{border-top:1px solid rgba(230,240,236,.14);margin-top:42px;padding:18px 0 22px;display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:13px;color:#93A29B;flex-wrap:wrap;}
.footer-bottom a{color:#C9D6CF;}
.footer-bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-menu,.nav-cta{display:none;}
  .burger{display:flex;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .alt-row,.alt-row.reverse{grid-template-columns:1fr 1fr;gap:28px;}
  .check-panel{grid-template-columns:1fr;padding:28px;}
}
@media (max-width:767px){
  .wrap{padding:0 16px;}
  .section{padding:48px 0;}
  .topbar-mid{display:none;}
  .page-banner-inner{padding:34px 0 44px;}
  .kpi-grid{grid-template-columns:1fr 1fr;margin-top:24px;}
  .alt-row,.alt-row.reverse{grid-template-columns:1fr;gap:20px;padding:32px 0;}
  .alt-row.reverse .alt-media{order:0;}
  .related-grid{grid-template-columns:1fr;}
  .cta-block{padding:32px 24px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .brand-text{font-size:15px;}
  .kpi-grid{grid-template-columns:1fr;}
  .section-head{margin-bottom:24px;}
  .faq-item summary{padding:14px 18px;font-size:15px;}
  .faq-body{padding:0 18px 20px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .subscribe-btn{width:100%;}
}

/* roulang page: category3 */
:root{
  --brand:#1F6F5C;
  --brand-dark:#175948;
  --brand-light:#E6F0EC;
  --accent:#D98A3B;
  --ink:#1B241F;
  --ink-2:#5C6B64;
  --ink-3:#8A968F;
  --line:#E3DED2;
  --bg:#FAF8F3;
  --bg-2:#F1EDE4;
  --bg-3:#F7F5EF;
  --dark:#16211E;
  --deep:#14503F;
  --card:#FFFFFF;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:10px;
  --radius-block:20px;
  --shadow-1:0 1px 2px rgba(22,33,30,.05), 0 8px 24px rgba(22,33,30,.06);
  --shadow-2:0 16px 40px rgba(31,111,92,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.9;color:var(--ink);background:var(--bg);
  letter-spacing:-0.01em;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.wrap{max-width:var(--container);margin:0 auto;padding:0 20px;}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--dark);color:#EDE9E0;font-size:12.5px;line-height:1;}
.topbar-inner{height:38px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar a{color:#EDE9E0;}
.topbar a:hover{color:#fff;}
.topbar-left{display:flex;align-items:center;gap:8px;white-space:nowrap;}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
.topbar-mid{color:#AEBAB3;white-space:nowrap;}
.topbar-right{display:flex;align-items:center;gap:14px;white-space:nowrap;}
.topbar-right .sep{width:1px;height:14px;background:rgba(237,233,224,.24);display:inline-block;}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;}
.navbar{background:var(--bg);border-bottom:1px solid transparent;transition:border-color .25s ease,box-shadow .25s ease;}
.site-header.is-scrolled .navbar{border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(22,33,30,.06);}
.navbar-inner{height:68px;display:flex;align-items:center;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;}
.brand-mark svg{width:32px;height:32px;}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-0.02em;}
.nav-menu{display:flex;align-items:center;gap:4px;flex:1;justify-content:center;}
.nav-link{position:relative;padding:9px 13px;border-radius:8px;font-size:14.5px;color:var(--ink-2);white-space:nowrap;}
.nav-link:hover{color:var(--brand);background:var(--brand-light);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{content:"";position:absolute;left:13px;right:13px;bottom:0;height:2px;background:var(--brand);border-radius:2px;}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.menu-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;background:#fff;}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--radius-btn);font-size:14.5px;font-weight:600;transition:transform .2s ease,background-color .22s ease,box-shadow .25s ease,color .22s ease,border-color .22s ease;}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(31,111,92,.24);}
.btn-accent{background:var(--accent);color:#2A1A08;}
.btn-accent:hover{background:#c97b2e;transform:translateY(-1px);box-shadow:0 10px 24px rgba(217,138,59,.28);}
.btn-outline{border:1px solid var(--line);color:var(--ink);background:#fff;}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-light);color:var(--brand-dark);}
.btn-line{border:1px solid rgba(255,255,255,.45);color:#fff;}
.btn-line:hover{background:rgba(255,255,255,.12);border-color:#fff;}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0;}
.section-alt{background:var(--bg-2);}
.section + .section{border-top:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:36px;flex-wrap:wrap;}
.h2{position:relative;padding-left:16px;font-size:clamp(1.5rem,2.4vw,2rem);font-weight:700;line-height:1.35;color:var(--ink);}
.h2::before{content:"";position:absolute;left:0;top:8px;width:4px;height:calc(100% - 16px);min-height:22px;background:var(--brand);border-radius:2px;}
.h2-note{font-size:14.5px;color:var(--ink-2);max-width:520px;line-height:1.8;}
.h3{font-size:1.25rem;font-weight:600;line-height:1.5;color:var(--ink);}
.lead{font-size:17px;line-height:1.95;color:var(--ink-2);}
.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--radius-pill);background:var(--brand-light);color:var(--brand-dark);font-size:12px;font-weight:600;letter-spacing:.01em;}
.badge-orange{background:#FBEEE0;color:#8C5416;}

/* ---------- 页面头部 banner ---------- */
.page-banner{position:relative;background-color:var(--dark);background-image:linear-gradient(100deg,rgba(22,33,30,.94) 0%,rgba(20,80,63,.86) 60%,rgba(22,33,30,.78) 100%),url("/assets/images/backpic/back-2.png");background-size:cover;background-position:center;color:#F4F1E9;overflow:hidden;}
.page-banner::after{content:"";position:absolute;inset:0;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='600' height='200' viewBox='0 0 600 200'%3E%3Cg fill='none' stroke='%23E6F0EC' stroke-width='2' stroke-opacity='.08'%3E%3Cpath d='M-20 150c90-60 180-60 270 0s180 60 370-20'/%3E%3Cpath d='M-20 180c90-60 180-60 270 0s180 60 370-20'/%3E%3C/g%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right -40px top 10px;pointer-events:none;}
.page-banner .wrap{position:relative;z-index:2;padding-top:56px;padding-bottom:56px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(244,241,233,.72);flex-wrap:wrap;}
.crumb a{color:rgba(244,241,233,.86);}
.crumb a:hover{color:#fff;}
.crumb .now{color:rgba(244,241,233,.6);}
.page-banner h1{margin-top:18px;font-size:clamp(2rem,4vw,3.1rem);font-weight:700;line-height:1.25;letter-spacing:-0.02em;color:#fff;max-width:22ch;}
.page-banner .sub{margin-top:16px;font-size:16.5px;line-height:1.9;color:rgba(244,241,233,.86);max-width:62ch;}
.banner-tags{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px;}
.banner-tags span{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--radius-pill);border:1px solid rgba(244,241,233,.28);font-size:13px;color:rgba(244,241,233,.9);}

/* ---------- KPI 数据块 ---------- */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-1);transition:box-shadow .3s ease,border-color .3s ease,transform .3s ease;}
.kpi:hover{border-color:rgba(31,111,92,.35);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.kpi-num{font-size:2rem;font-weight:700;color:var(--brand);line-height:1.2;}
.kpi-label{margin-top:8px;font-size:14px;font-weight:600;color:var(--ink);}
.kpi-desc{margin-top:6px;font-size:13px;color:var(--ink-3);line-height:1.75;}

/* ---------- 对比双列 ---------- */
.cmp-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch;}
.cmp-col{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:30px;box-shadow:var(--shadow-1);transition:box-shadow .3s ease,border-color .3s ease;}
.cmp-col:hover{border-color:rgba(31,111,92,.35);box-shadow:var(--shadow-2);}
.cmp-col.is-focus{border-color:rgba(31,111,92,.45);background:linear-gradient(180deg,#FFFFFF 0%,#F7FBF9 100%);}
.cmp-head{display:flex;align-items:center;gap:12px;}
.cmp-index{width:38px;height:38px;border-radius:12px;background:var(--brand-light);color:var(--brand-dark);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;}
.cmp-col.is-focus .cmp-index{background:var(--brand);color:#fff;}
.cmp-title{font-size:1.12rem;font-weight:700;color:var(--ink);line-height:1.5;}
.cmp-desc{margin-top:16px;font-size:15px;line-height:1.9;color:var(--ink-2);}
.cmp-list{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.cmp-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.85;color:var(--ink-2);}
.cmp-list li::before{content:"";flex:0 0 auto;width:7px;height:7px;border-radius:50%;background:var(--brand);margin-top:11px;}
.cmp-foot{margin-top:22px;padding-top:18px;border-top:1px dashed var(--line);font-size:13px;color:var(--ink-3);}
.cmp-visual{margin-top:22px;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);}
.cmp-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease-out;}
.cmp-col:hover .cmp-visual img{transform:scale(1.03);}

/* ---------- 规格清单表 ---------- */
.table-shell{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);background:var(--card);}
.table-scroll{overflow-x:auto;}
table.spec{width:100%;min-width:680px;border-collapse:collapse;font-size:14.5px;}
table.spec thead th{background:var(--deep);color:#F4F1E9;text-align:left;font-size:13.5px;font-weight:600;padding:16px 20px;white-space:nowrap;letter-spacing:.02em;}
table.spec tbody td{padding:0 20px;height:56px;vertical-align:middle;border-top:1px solid var(--line);color:var(--ink-2);}
table.spec tbody tr:nth-child(even){background:var(--bg-2);}
table.spec tbody tr:hover{background:var(--bg-3);}
table.spec td.first{color:var(--ink);font-weight:600;}
table.spec td .tagline{display:inline-flex;align-items:center;padding:3px 10px;border-radius:var(--radius-pill);background:var(--brand-light);color:var(--brand-dark);font-size:12px;font-weight:600;}
.table-foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:16px 20px;background:#fff;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);}

/* ---------- 条目列表 ---------- */
.item-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.item-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-1);transition:box-shadow .3s ease,border-color .3s ease,transform .3s ease;}
.item-card:hover{border-color:rgba(31,111,92,.35);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.item-card h3{font-size:1.06rem;font-weight:700;color:var(--ink);line-height:1.55;}
.item-card p{margin-top:10px;font-size:14.5px;line-height:1.85;color:var(--ink-2);}
.item-meta{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--ink-3);}

/* ---------- FAQ ---------- */
.faq{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--card);box-shadow:var(--shadow-1);}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq summary{min-height:60px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 22px;cursor:pointer;font-size:15.5px;font-weight:600;color:var(--ink);list-style:none;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";font-size:20px;line-height:1;color:var(--brand);transition:transform .25s ease;flex-shrink:0;}
.faq details[open] summary::after,
.faq-item[open] summary::after{content:"−";}
.faq summary:hover{background:var(--bg-3);}
.faq-body{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ---------- 相关分类 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.rel-card{display:flex;flex-direction:column;overflow:hidden;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);transition:box-shadow .3s ease,border-color .3s ease,transform .3s ease;}
.rel-card:hover{border-color:rgba(31,111,92,.35);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.rel-thumb{overflow:hidden;}
.rel-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease-out;}
.rel-card:hover .rel-thumb img{transform:scale(1.03);}
.rel-body{padding:20px 22px 24px;}
.rel-body h3{font-size:1.06rem;font-weight:700;color:var(--ink);line-height:1.55;}
.rel-body p{margin-top:10px;font-size:14px;line-height:1.85;color:var(--ink-2);}
.rel-more{margin-top:16px;display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--brand);}
.rel-more .arw{transition:transform .25s ease;}
.rel-card:hover .rel-more .arw{transform:translateX(4px);}
.rel-card.is-current{border-color:rgba(31,111,92,.5);}
.rel-card.is-current .rel-body h3{color:var(--brand-dark);}

/* ---------- CTA ---------- */
.cta-block{background:var(--deep);border-radius:var(--radius-block);padding:44px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;color:#F4F1E9;}
.cta-block h2{font-size:clamp(1.4rem,2.2vw,1.85rem);font-weight:700;line-height:1.4;color:#fff;}
.cta-block p{margin-top:12px;font-size:15px;line-height:1.85;color:rgba(244,241,233,.84);max-width:52ch;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#EDE9E0;border-top:3px solid var(--brand);margin-top:0;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:32px;padding:64px 0 48px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16.5px;font-weight:700;color:#fff;}
.footer-mark{width:30px;height:30px;display:inline-flex;}
.footer-mark svg{width:30px;height:30px;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.9;color:#A9B6AF;max-width:34ch;}
.footer-title{font-size:13px;font-weight:700;color:#fff;letter-spacing:.04em;margin-bottom:16px;}
.footer-list li + li{margin-top:10px;}
.footer-list a{font-size:14px;color:#A9B6AF;}
.footer-list a:hover{color:#fff;}
.subscribe{display:flex;flex-wrap:wrap;gap:10px;}
.subscribe-input{flex:1 1 180px;min-width:0;height:44px;padding:0 14px;border-radius:var(--radius-btn);border:1px solid rgba(237,233,224,.22);background:rgba(237,233,224,.06);color:#F4F1E9;font-size:14px;transition:border-color .22s ease,box-shadow .22s ease;}
.subscribe-input::placeholder{color:#8A968F;}
.subscribe-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,111,92,.35);}
.subscribe-btn{height:44px;padding:0 18px;border-radius:var(--radius-btn);background:var(--brand);color:#fff;font-size:14px;font-weight:600;transition:background-color .22s ease,transform .2s ease;}
.subscribe-btn:hover{background:var(--brand-dark);transform:translateY(-1px);}
.subscribe-note{flex:1 1 100%;font-size:12.5px;color:#8FBFAF;min-height:18px;}
.footer-bottom{border-top:1px solid rgba(237,233,224,.14);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:20px 0;font-size:13px;color:#8A968F;}
.footer-bottom a{color:#A9B6AF;}
.footer-bottom a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .topbar-mid{display:none;}
  .kpi-grid{grid-template-columns:repeat(2,1fr);}
  .item-list{grid-template-columns:repeat(2,1fr);}
  .rel-grid{grid-template-columns:repeat(2,1fr);}
  .cmp-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 36px;}
  .menu-toggle{display:flex;}
  .nav-menu{display:none;}
  .nav-menu.is-open{display:flex;flex-direction:column;align-items:stretch;gap:4px;position:fixed;top:106px;left:0;right:0;bottom:0;background:var(--bg);padding:20px;overflow-y:auto;z-index:70;}
  .nav-menu.is-open .nav-link{font-size:19px;padding:18px 12px;border-bottom:1px solid var(--line);border-radius:0;color:var(--ink);}
  .nav-menu.is-open .nav-link.is-active::after{display:none;}
  .nav-menu.is-open .nav-link.is-active{color:var(--brand-dark);}
  .nav-cta{display:none;}
}
@media (max-width:767px){
  .section{padding:48px 0;}
  .page-banner .wrap{padding-top:40px;padding-bottom:40px;}
  .cta-block{padding:30px;}
  .item-list{grid-template-columns:1fr;}
  .rel-grid{grid-template-columns:1fr;}
}
@media (max-width:559px){
  .wrap{padding:0 16px;}
  .kpi-grid{grid-template-columns:1fr;gap:14px;}
  .footer-grid{grid-template-columns:1fr;}
  .cmp-col{padding:22px;}
  .brand-text{font-size:15.5px;}
  .topbar-right{gap:10px;}
  .banner-tags span{font-size:12.5px;}
}