/* roulang page: index */
:root{
  --brand:#0F5C5A;
  --brand-dark:#0A4644;
  --brand-deep:#123F3D;
  --accent:#F2703C;
  --accent-dark:#D95B29;
  --accent-soft:#FFE7DC;
  --bg:#FBF9F6;
  --bg-alt:#F1EEE8;
  --surface:#FFFFFF;
  --line:#E3DED5;
  --ink:#17211F;
  --ink-2:#4A5551;
  --ink-3:#7C8681;
  --ok:#2F8F6B;
  --warn:#C98A1B;
  --err:#C2453B;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 1px 2px rgba(23,33,31,.06);
  --shadow-hover:0 10px 28px rgba(15,92,90,.12);
}
*,*::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,sans-serif;
  font-size:1rem;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:var(--accent-soft);color:var(--brand-dark)}

.container{max-width:1200px;margin:0 auto;padding-inline:20px}
@media(min-width:768px){.container{padding-inline:32px}}
@media(min-width:1280px){.container{padding-inline:40px}}

.section{padding-block:56px}
@media(min-width:1024px){.section{padding-block:88px}}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:720px;margin-bottom:32px}
.section-head.center{margin-inline:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.75rem;font-weight:600;letter-spacing:.08em;
  color:var(--brand);background:var(--accent-soft);
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.section-title{
  font-size:clamp(1.5rem,2.6vw,2.125rem);
  font-weight:700;line-height:1.3;letter-spacing:-.01em;
}
.section-desc{margin-top:12px;color:var(--ink-2);font-size:1rem}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:64px}
@media(max-width:520px){.header-inner{height:56px;gap:12px}}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo svg{width:26px;height:26px;flex-shrink:0}
.logo-text{
  font-size:1rem;font-weight:700;color:var(--ink);
  white-space:nowrap;letter-spacing:-.01em;
}
@media(max-width:520px){.logo-text{font-size:.9375rem}}
.desktop-nav{display:none;align-items:center;gap:2px;margin-left:8px}
@media(min-width:1024px){.desktop-nav{display:flex}}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 12px;border-radius:8px;
  font-size:.9375rem;font-weight:500;color:var(--ink-2);
  transition:color .18s ease,background .18s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:var(--bg-alt)}
.nav-link.active{color:var(--ink);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:60%;height:2px;border-radius:2px;background:var(--accent);
}
.header-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.cmd-search{
  display:none;align-items:center;gap:8px;
  width:230px;height:38px;padding:0 12px;
  background:var(--bg-alt);border:1px solid var(--line);
  border-radius:var(--radius-sm);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
@media(min-width:1180px){.cmd-search{display:flex}}
.cmd-search:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(15,92,90,.12)}
.cmd-search input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:.875rem;color:var(--ink);
}
.cmd-search input::placeholder{color:var(--ink-3)}
.kbd{
  font-size:.6875rem;font-weight:600;color:var(--ink-3);
  background:#fff;border:1px solid var(--line);border-radius:5px;
  padding:1px 5px;line-height:1.4;
}
.icon-btn{
  display:none;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  transition:all .18s ease;cursor:pointer;
}
@media(min-width:1024px){.icon-btn{display:inline-flex}}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--bg-alt)}
.menu-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:#fff;cursor:pointer;
}
@media(min-width:1024px){.menu-toggle{display:none}}
.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}

/* 移动抽屉 */
.mobile-drawer{
  display:none;position:fixed;inset:64px 0 0 0;z-index:55;
  background:#fff;border-top:1px solid var(--line);
  padding:20px;overflow-y:auto;
}
@media(max-width:520px){.mobile-drawer{inset:56px 0 0 0}}
.mobile-drawer.open{display:block}
.mobile-drawer a.drawer-link{
  display:block;padding:14px 12px;border-radius:10px;
  font-size:1.0625rem;font-weight:500;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.drawer-link:hover{background:var(--bg-alt);color:var(--brand)}
.mobile-drawer a.drawer-link.active{color:var(--brand);font-weight:600}
.drawer-search{
  display:flex;align-items:center;gap:8px;margin:18px 0;
  height:44px;padding:0 12px;background:var(--bg-alt);
  border:1px solid var(--line);border-radius:var(--radius-sm);
}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:.9375rem}
.drawer-cta{display:block;text-align:center;margin-top:6px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-sm);
  font-size:.9375rem;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 4px 14px rgba(242,112,60,.24)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:0 8px 20px rgba(242,112,60,.28)}
.btn-primary:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-secondary{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-secondary:hover{border-color:var(--brand);background:var(--bg-alt);color:var(--brand)}
.btn-light{background:#fff;color:var(--brand);border-color:#fff}
.btn-light:hover{background:var(--accent-soft);border-color:var(--accent-soft);color:var(--brand-dark)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.42);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.8)}
.btn-sm{padding:9px 16px;font-size:.875rem}
.btn-block{width:100%}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:600;font-size:.9375rem;color:var(--brand);
  background:none;border:0;padding:0;cursor:pointer;
}
.btn-link .arrow{transition:transform .18s ease}
.btn-link:hover{color:var(--accent-dark)}
.btn-link:hover .arrow{transform:translateX(3px)}

/* 徽章 */
.badge{
  display:inline-block;padding:4px 10px;border-radius:999px;
  background:var(--accent-soft);color:var(--brand);
  font-size:.75rem;font-weight:600;letter-spacing:.04em;
}
.badge-light{background:rgba(255,255,255,.16);color:#fff}
.badge-brand{background:rgba(15,92,90,.1);color:var(--brand)}

/* Hero */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(160deg,#0F5C5A 0%,#123F3D 100%);
  padding-block:56px 60px;
}
@media(min-width:1024px){.hero{padding-block:88px 92px}}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(242,112,60,.28),transparent 68%);
  pointer-events:none;
}
.hero-grid{position:relative;z-index:1;display:grid;gap:36px}
@media(min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;align-items:center;gap:48px}}
.hero h1{
  font-size:clamp(2rem,4.2vw,3.25rem);
  font-weight:700;line-height:1.2;letter-spacing:-.01em;
  margin-top:16px;color:#fff;
}
.hero-sub{margin-top:16px;font-size:1.0625rem;line-height:1.7;color:rgba(255,255,255,.84);max-width:36em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
@media(max-width:520px){.hero-actions .btn{width:100%}}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:32px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.16);
}
.hero-stat .num{
  font-size:1.5rem;font-weight:700;line-height:1.2;
  font-variant-numeric:tabular-nums;color:#fff;
}
.hero-stat .label{font-size:.75rem;color:rgba(255,255,255,.68);margin-top:2px}
.hero-media{position:relative}
.hero-media img{
  width:100%;border-radius:var(--radius);object-fit:cover;aspect-ratio:4/3;
  border:1px solid rgba(255,255,255,.18);
  box-shadow:inset 0 0 40px rgba(0,0,0,.24),0 18px 40px rgba(0,0,0,.2);
}
.hero-float{
  display:none;position:absolute;right:-10px;bottom:-16px;
  background:#fff;color:var(--ink);border-radius:12px;
  padding:10px 16px;box-shadow:0 12px 30px rgba(0,0,0,.22);
  font-size:.8125rem;font-weight:600;
}
@media(min-width:768px){.hero-float{display:block}}
.hero-float .sub{display:block;font-size:.6875rem;font-weight:400;color:var(--ink-3);margin-top:2px}

/* 通用卡片 */
.card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.media{width:100%;object-fit:cover;border-radius:12px;background:var(--bg-alt)}

/* 适配说明：左图右列表 */
.split{display:grid;gap:32px;align-items:center}
@media(min-width:1024px){.split{grid-template-columns:1fr 1fr;gap:56px}}
.split-img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--radius);
  border:1px solid var(--line);background:var(--bg-alt);
}
.feature-list{display:grid;gap:8px;margin-top:24px}
.feature-item{
  display:grid;grid-template-columns:40px 1fr;gap:14px;
  padding:16px;border-radius:12px;
  transition:background .18s ease;
}
.feature-item:hover{background:var(--bg-alt)}
.feature-ico{
  width:40px;height:40px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:var(--accent-soft);color:var(--brand);flex-shrink:0;
}
.feature-item h3{font-size:1rem;font-weight:600;line-height:1.5}
.feature-item p{font-size:.9375rem;color:var(--ink-2);margin-top:4px}

/* 步骤 */
.steps{display:grid;gap:14px}
@media(min-width:768px){.steps{grid-template-columns:1fr 1fr;gap:18px}}
.step{
  display:grid;grid-template-columns:52px 1fr;gap:16px;align-items:start;
  padding:22px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.step:hover{border-color:var(--brand);box-shadow:var(--shadow-hover)}
.step-num{
  font-size:1.5rem;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.step h3{font-size:1.0625rem;font-weight:600;line-height:1.5}
.step p{font-size:.9375rem;color:var(--ink-2);margin-top:6px}

/* 亮点混合网格 */
.highlight-grid{display:grid;gap:20px}
@media(min-width:1024px){.highlight-grid{grid-template-columns:1.1fr .9fr;gap:24px}}
.highlight-main{
  overflow:hidden;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);
  transition:box-shadow .2s ease,transform .2s ease;
}
.highlight-main:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.highlight-main img{width:100%;aspect-ratio:16/9;object-fit:cover}
.highlight-main .body{padding:22px}
.highlight-main h3{font-size:1.25rem;font-weight:600;margin-top:12px}
.highlight-main p{color:var(--ink-2);font-size:.9375rem;margin-top:8px}
.mini-stack{display:grid;gap:16px;align-content:start}
.mini-card{
  display:grid;grid-template-columns:44px 1fr;gap:14px;align-items:start;
  padding:18px 20px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.mini-card:hover{border-color:var(--brand);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.mini-card .ico{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(15,92,90,.08);color:var(--brand);
}
.mini-card h3{font-size:1rem;font-weight:600}
.mini-card p{font-size:.875rem;color:var(--ink-2);margin-top:4px}

/* 数据条 */
.stat-band{
  background:var(--brand);color:#fff;border-radius:var(--radius);
  padding:32px 24px;display:grid;gap:24px;
  grid-template-columns:repeat(2,1fr);
}
@media(min-width:768px){.stat-band{grid-template-columns:repeat(4,1fr);padding:40px 32px}}
.stat-band .item{text-align:center}
.stat-band .num{font-size:clamp(1.5rem,2.4vw,2rem);font-weight:700;font-variant-numeric:tabular-nums}
.stat-band .txt{font-size:.8125rem;color:rgba(255,255,255,.72);margin-top:4px}

/* 分类卡 */
.cat-grid{display:grid;gap:18px}
@media(min-width:640px){.cat-grid{grid-template-columns:1fr 1fr}}
.cat-card{
  display:block;padding:24px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.cat-card:hover{border-color:var(--brand);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.cat-card .cat-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.cat-card h3{font-size:1.125rem;font-weight:600;margin-top:14px}
.cat-card p{font-size:.9375rem;color:var(--ink-2);margin-top:8px}
.cat-card .more{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:.875rem;font-weight:600;color:var(--brand);
}
.cat-card:hover .more .arrow{transform:translateX(3px)}
.cat-card .more .arrow{transition:transform .18s ease}

/* 最新信息 CMS */
.cms-grid{display:grid;gap:20px}
@media(min-width:640px){.cms-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.cms-grid{grid-template-columns:repeat(3,1fr)}}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D5CFC3}
.post-card .thumb{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--bg-alt)}
.post-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.post-card h3{
  font-size:1.0625rem;font-weight:600;line-height:1.55;margin-top:10px;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease;
}
.post-card:hover h3{color:var(--brand)}
.post-card .desc{
  font-size:.875rem;color:var(--ink-2);margin-top:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:auto;padding-top:14px;font-size:.8125rem;color:var(--ink-3);
}
.post-card .foot .arrow{color:var(--brand);font-weight:600;transition:transform .18s ease}
.post-card:hover .foot .arrow{transform:translateX(3px)}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius);
}
.empty-state .icon{
  width:52px;height:52px;margin:0 auto 14px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg-alt);color:var(--ink-3);
}
.empty-state p{color:var(--ink-2);font-size:.9375rem}

/* FAQ */
.faq{display:grid;gap:12px;max-width:860px;margin-inline:auto}
.faq-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--brand);box-shadow:var(--shadow)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;cursor:pointer;
  font-size:1rem;font-weight:600;list-style:none;
  transition:background .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:var(--bg-alt)}
.faq-item .sign{
  position:relative;flex-shrink:0;width:18px;height:18px;
  transition:transform .22s ease;
}
.faq-item .sign::before,.faq-item .sign::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-item .sign::before{left:0;top:8px;width:18px;height:2px}
.faq-item .sign::after{top:0;left:8px;width:2px;height:18px;transition:opacity .2s ease}
.faq-item[open] .sign{transform:rotate(45deg)}
.faq-item .answer{padding:0 20px 18px;color:var(--ink-2);font-size:.9375rem;line-height:1.8}

/* CTA 带 */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand);color:#fff;border-radius:var(--radius);
  padding:36px 24px;
}
@media(min-width:1024px){.cta-band{padding:48px 44px}}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.045) 0 12px,transparent 12px 26px);
  pointer-events:none;
}
.cta-inner{position:relative;display:grid;gap:22px;align-items:center}
@media(min-width:900px){.cta-inner{grid-template-columns:1fr auto;gap:40px}}
.cta-inner h2{font-size:clamp(1.375rem,2.4vw,1.875rem);font-weight:700;line-height:1.35}
.cta-inner p{margin-top:10px;color:rgba(255,255,255,.8);font-size:.9375rem}
.cta-note{position:relative;margin-top:18px;font-size:.8125rem;color:rgba(255,255,255,.6)}
@media(max-width:899px){.cta-inner .btn{width:100%}}

/* 页脚 */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--line);margin-top:0}
.footer-inner{padding-block:48px 0}
.footer-grid{display:grid;gap:32px}
@media(min-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr .8fr .8fr 1.1fr;gap:40px}}
.footer-brand .logo{margin-bottom:14px}
.footer-brand p{font-size:.875rem;color:var(--ink-2);max-width:30em}
.footer-contact{margin-top:16px;font-size:.875rem;color:var(--ink-2)}
.footer-contact a{color:var(--brand);font-weight:600}
.footer-contact a:hover{text-decoration:underline;text-underline-offset:3px}
.footer-col h3{font-size:.875rem;font-weight:700;letter-spacing:.06em;color:var(--ink);margin-bottom:14px}
.footer-col ul{display:grid;gap:9px}
.footer-col a{font-size:.875rem;color:var(--ink-2);transition:color .18s ease}
.footer-col a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.footer-col .btn{margin-top:16px}
.footer-bottom{
  margin-top:40px;padding-block:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:.8125rem;color:var(--ink-3);
}
.footer-bottom a{color:var(--ink-3)}
.footer-bottom a:hover{color:var(--brand)}

/* roulang page: article */
:root{
  --brand:#0F5C5A;
  --brand-dark:#0A4644;
  --accent:#F2703C;
  --accent-dark:#D95B29;
  --accent-soft:#FFE7DC;
  --bg:#FBF9F6;
  --bg-alt:#F1EEE8;
  --surface:#FFFFFF;
  --line:#E3DED5;
  --ink:#17211F;
  --ink-2:#4A5551;
  --ink-3:#7C8681;
  --ok:#2F8F6B;
  --warn:#C98A1B;
  --err:#C2453B;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --shadow:0 1px 2px rgba(23,33,31,.06);
  --shadow-hover:0 10px 28px rgba(15,92,90,.12);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:1rem;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:1rem;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-inline:20px;
}
@media (min-width:768px){.container{padding-inline:32px;}}
@media (min-width:1280px){.container{padding-inline:40px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:56px;}
@media (min-width:1024px){.header-inner{height:64px;gap:24px;}}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none;min-width:0;}
.logo svg{width:28px;height:28px;flex:none;}
.logo-text{
  font-size:.9375rem;
  font-weight:600;
  color:var(--ink);
  white-space:nowrap;
  letter-spacing:.01em;
}
@media (min-width:1024px){.logo-text{font-size:1rem;}}
.desktop-nav{display:none;align-items:center;gap:26px;margin-left:8px;}
@media (min-width:1024px){.desktop-nav{display:flex;}}
.nav-link{
  position:relative;
  font-size:.9375rem;
  font-weight:500;
  color:var(--ink-2);
  padding:6px 0;
  transition:color .18s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-6px;
  width:60%;
  height:2px;
  border-radius:2px;
  background:var(--accent);
}
.header-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
.cmd-search{
  display:none;
  align-items:center;
  gap:8px;
  width:230px;
  height:38px;
  padding:0 10px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:var(--bg-alt);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
@media (min-width:1180px){.cmd-search{display:flex;}}
.cmd-search:focus-within{
  background:#fff;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(15,92,90,.12);
}
.cmd-search input{
  flex:1;
  min-width:0;
  border:0;
  background:transparent;
  font-size:.8125rem;
  color:var(--ink);
  outline:none;
}
.cmd-search input::placeholder{color:var(--ink-3);}
.kbd{
  font-size:.6875rem;
  line-height:1.4;
  color:var(--ink-3);
  background:#fff;
  border:1px solid var(--line);
  border-radius:5px;
  padding:1px 5px;
  flex:none;
}
.icon-btn{
  display:none;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--ink-2);
  cursor:pointer;
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
@media (min-width:1024px){.icon-btn{display:inline-flex;}}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);background:var(--bg-alt);}
.menu-toggle{
  display:inline-flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  width:40px;
  height:40px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  cursor:pointer;
}
.menu-toggle span{
  display:block;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .2s ease,opacity .2s ease;
}
.menu-toggle span + span{margin-top:4px;}
.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 (min-width:1024px){.menu-toggle{display:none;}}
.mobile-drawer{
  display:none;
  flex-direction:column;
  padding:8px 20px 20px;
  background:#fff;
  border-top:1px solid var(--line);
}
.mobile-drawer.open{display:flex;}
.drawer-link{
  padding:12px 2px;
  font-size:1.0625rem;
  color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer-link:hover{color:var(--brand);}
.drawer-link.active{color:var(--brand);font-weight:600;}
.drawer-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:42px;
  margin-top:16px;
  padding:0 12px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:var(--bg-alt);
}
.drawer-search input{
  flex:1;
  min-width:0;
  border:0;
  background:transparent;
  outline:none;
  font-size:.875rem;
  color:var(--ink);
}
.drawer-cta{margin-top:14px;width:100%;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  font-weight:600;
  font-size:.9375rem;
  line-height:1.2;
  padding:12px 24px;
  cursor:pointer;
  text-decoration:none;
  transition:transform .16s ease,background .16s ease,border-color .16s ease,box-shadow .16s ease,color .16s ease;
}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:0 8px 20px rgba(242,112,60,.28);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-secondary{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-secondary:hover{border-color:var(--brand);background:var(--bg-alt);color:var(--brand);}
.btn-sm{padding:8px 16px;font-size:.875rem;}
.btn-block{width:100%;}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:.9375rem;
  font-weight:600;
  color:var(--brand);
  background:none;
  border:0;
  padding:0;
  cursor:pointer;
}
.btn-ghost svg{transition:transform .18s ease;}
.btn-ghost:hover svg{transform:translateX(2px);}

/* ---------- badges & tags ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:999px;
  background:var(--accent-soft);
  color:var(--brand);
  font-size:.75rem;
  font-weight:600;
  letter-spacing:.04em;
  line-height:1.6;
}
.badge-muted{background:var(--bg-alt);color:var(--ink-2);}

/* ---------- page shell ---------- */
.section{padding-block:48px;}
@media (min-width:768px){.section{padding-block:64px;}}
@media (min-width:1024px){.section{padding-block:80px;}}

.page-head{
  background:var(--bg-alt);
  border-bottom:1px solid var(--line);
  padding-block:18px 0;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
  font-size:.8125rem;
  color:var(--ink-3);
  padding-bottom:18px;
}
.breadcrumb a{color:var(--ink-3);transition:color .18s ease;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#B9B3A8;}
.breadcrumb .current{
  color:var(--ink-2);
  max-width:220px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
@media (min-width:768px){.breadcrumb .current{max-width:420px;}}

.article-hero{padding-block:28px 32px;}
@media (min-width:1024px){.article-hero{padding-block:36px 40px;}}
.article-hero .badge{margin-bottom:16px;}
.article-hero h1{
  font-size:clamp(1.75rem,3vw,2.5rem);
  font-weight:700;
  line-height:1.25;
  letter-spacing:-.01em;
  color:var(--ink);
  max-width:900px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 10px;
  margin-top:18px;
  font-size:.875rem;
  color:var(--ink-3);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C9C3B8;display:inline-block;}
.article-divider{height:1px;background:var(--line);margin-top:24px;}

/* ---------- layout ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:40px;
}
@media (min-width:1024px){
  .article-layout{
    grid-template-columns:minmax(0,760px) 264px;
    justify-content:center;
    gap:48px;
    align-items:start;
  }
}
.article-main{min-width:0;}
.article-aside{min-width:0;}

/* ---------- article body ---------- */
.article-body{
  font-size:1rem;
  line-height:1.75;
  color:var(--ink-2);
  overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.15em;}
.article-body h2{
  position:relative;
  margin:32px 0 12px;
  padding-left:14px;
  font-size:clamp(1.25rem,2vw,1.5rem);
  font-weight:700;
  line-height:1.35;
  color:var(--ink);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.28em;
  bottom:.28em;
  width:4px;
  border-radius:2px;
  background:var(--accent);
}
.article-body h3{
  margin:24px 0 10px;
  font-size:1.125rem;
  font-weight:600;
  color:var(--ink);
}
.article-body h4{margin:20px 0 8px;font-size:1rem;font-weight:600;color:var(--ink);}
.article-body ul,.article-body ol{margin:0 0 1.15em;padding-left:1.25em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:.4em;}
.article-body blockquote{
  margin:20px 0;
  padding:14px 18px;
  border-left:3px solid var(--brand);
  background:var(--bg-alt);
  border-radius:0 12px 12px 0;
  color:var(--ink-2);
}
.article-body img{
  width:100%;
  height:auto;
  margin:20px 0 8px;
  border-radius:var(--r-img);
  background:var(--bg-alt);
}
.article-body figure{margin:20px 0;}
.article-body figcaption{
  font-size:.8125rem;
  color:var(--ink-3);
  text-align:center;
}
.article-body a{
  color:var(--brand);
  text-decoration:underline;
  text-underline-offset:2px;
  transition:color .18s ease;
}
.article-body a:hover{color:var(--accent);}
.article-body strong{color:var(--ink);font-weight:600;}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:20px 0;
  font-size:.9375rem;
  color:var(--ink-2);
}
.article-body th{
  background:var(--bg-alt);
  color:var(--ink);
  text-align:left;
  font-weight:600;
}
.article-body th,.article-body td{
  padding:12px;
  border:1px solid var(--line);
  vertical-align:top;
}
@media (max-width:640px){
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:28px 0;}

.article-empty{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  gap:14px;
  padding:56px 24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
}
.article-empty .empty-icon{
  width:52px;
  height:52px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--accent-soft);
  color:var(--brand);
}
.article-empty h2{font-size:1.125rem;font-weight:600;color:var(--ink);}
.article-empty p{font-size:.9375rem;color:var(--ink-3);max-width:420px;}

/* ---------- article footer blocks ---------- */
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:32px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:999px;
  background:var(--bg-alt);
  color:var(--ink-2);
  font-size:.8125rem;
  transition:background .18s ease,color .18s ease;
}
.tag:hover{background:var(--accent-soft);color:var(--brand);}

.related-block{margin-top:32px;padding-top:24px;border-top:1px solid var(--line);}
.related-block h2{font-size:1.0625rem;font-weight:600;color:var(--ink);margin-bottom:14px;}
.related-list{display:flex;flex-direction:column;}
.related-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 4px;
  border-bottom:1px solid var(--line);
  transition:background .18s ease,padding .18s ease;
}
.related-item:hover{background:var(--bg-alt);padding-inline:12px;}
.related-item span{font-size:.9375rem;color:var(--ink);}
.related-item:hover span{color:var(--brand);}
.related-item em{font-style:normal;font-size:.8125rem;color:var(--ink-3);flex:none;}
.back-row{margin-top:24px;}

/* ---------- aside ---------- */
.aside-stack{display:flex;flex-direction:column;gap:20px;}
@media (min-width:1024px){
  .aside-stack{position:sticky;top:88px;}
}
.aside-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  padding:18px;
}
.aside-card h2{font-size:.9375rem;font-weight:600;color:var(--ink);margin-bottom:12px;}
.aside-figure{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-alt);
}
.aside-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.aside-figure figcaption{
  padding:10px 14px;
  font-size:.75rem;
  color:var(--ink-3);
  background:#fff;
  border-top:1px solid var(--line);
}
.aside-meta{display:flex;flex-direction:column;gap:10px;}
.aside-meta div{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:.8125rem;}
.aside-meta dt{color:var(--ink-3);}
.aside-meta dd{margin:0;color:var(--ink);font-weight:500;text-align:right;}
.aside-links{display:flex;flex-direction:column;gap:2px;}
.aside-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:10px 2px;
  font-size:.875rem;
  color:var(--ink-2);
  border-bottom:1px solid var(--line);
  transition:color .18s ease,padding-left .18s ease;
}
.aside-links a:last-child{border-bottom:0;}
.aside-links a:hover{color:var(--brand);padding-left:6px;}
.aside-links a svg{color:var(--ink-3);flex:none;}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:20px;
  padding:32px 24px;
  color:#fff;
  background-image:linear-gradient(160deg,rgba(15,92,90,.95),rgba(18,63,61,.97)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
@media (min-width:768px){.cta-band{padding:40px 40px;}}
.cta-band h2{
  font-size:clamp(1.375rem,2.4vw,1.875rem);
  font-weight:700;
  line-height:1.3;
  color:#fff;
}
.cta-band p{margin-top:10px;font-size:.9375rem;color:rgba(255,255,255,.78);max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;width:100%;}
@media (min-width:768px){.cta-actions{width:auto;flex:none;}}
.cta-note{width:100%;font-size:.75rem;color:rgba(255,255,255,.62);margin-top:4px;}
.cta-band .btn-secondary{border-color:rgba(255,255,255,.34);color:#fff;}
.cta-band .btn-secondary:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  margin-top:16px;
  padding-block:44px 24px;
}
@media (min-width:768px){.site-footer{padding-block:56px 28px;}}
.footer-inner{width:100%;}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand .logo{margin-bottom:14px;}
.footer-brand p{font-size:.875rem;color:var(--ink-2);max-width:360px;line-height:1.8;}
.footer-contact{margin-top:14px;font-size:.8125rem;color:var(--ink-3);line-height:1.9;}
.footer-contact a{color:var(--brand);}
.footer-contact a:hover{text-decoration:underline;}
.footer-col h3{
  font-size:.8125rem;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--ink);
  margin-bottom:14px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li a{font-size:.875rem;color:var(--ink-2);transition:color .18s ease;}
.footer-col li a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.footer-col .btn{margin-top:16px;}
.footer-bottom{
  margin-top:36px;
  padding-top:18px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  align-items:center;
  justify-content:space-between;
  font-size:.75rem;
  color:var(--ink-3);
}

/* roulang page: category1 */
:root{
  --brand:#0F5C5A;
  --brand-deep:#0A4644;
  --brand-soft:#E6EFEE;
  --accent:#F2703C;
  --accent-deep:#D95B29;
  --accent-soft:#FFE7DC;
  --bg:#FBF9F6;
  --bg-alt:#F1EEE8;
  --surface:#FFFFFF;
  --line:#E3DED5;
  --ink:#17211F;
  --ink-2:#4A5551;
  --ink-3:#7C8681;
  --ok:#2F8F6B;
  --warn:#C98A1B;
  --err:#C2453B;
  --radius:16px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(23,33,31,.06);
  --shadow-2:0 10px 28px rgba(15,92,90,.12);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  background:var(--bg);
  color:var(--ink);
  font-size:1rem;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-inline:20px}
@media (min-width:768px){.container{padding-inline:32px}}
@media (min-width:1280px){.container{padding-inline:40px}}
.section{padding-block:56px}
@media (min-width:1024px){.section{padding-block:88px}}
.section-alt{background:var(--bg-alt)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:16px;height:56px}
@media (min-width:1024px){.header-inner{height:64px;gap:24px}}
.logo{display:inline-flex;align-items:center;gap:9px;color:var(--ink);font-weight:600;font-size:.9375rem;white-space:nowrap}
@media (min-width:1024px){.logo{font-size:1rem}}
.logo svg{width:24px;height:24px;flex:none}
.logo-text{letter-spacing:.01em}
.desktop-nav{display:none}
@media (min-width:1024px){
  .desktop-nav{display:flex;align-items:center;gap:2px;margin-left:8px}
}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 12px;border-radius:8px;
  font-size:.9375rem;font-weight:500;color:var(--ink-2);
  transition:color .18s ease,background-color .18s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:var(--bg-alt)}
.nav-link.active{color:var(--ink)}
.nav-link.active::after{
  content:"";position:absolute;left:12px;bottom:2px;width:60%;height:2px;
  background:var(--accent);border-radius:2px;
}
.header-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.cmd-search{
  display:none;align-items:center;gap:8px;
  width:220px;height:38px;padding:0 10px;
  background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius-sm);
  transition:border-color .18s ease,box-shadow .18s ease;
}
@media (min-width:1024px){.cmd-search{display:flex}}
.cmd-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,92,90,.12)}
.cmd-search input{
  flex:1;min-width:0;border:0;background:transparent;font:inherit;font-size:.8125rem;color:var(--ink);
}
.cmd-search input::placeholder{color:var(--ink-3)}
.cmd-search input:focus{outline:none}
.kbd{
  font-size:.6875rem;line-height:1;color:var(--ink-3);
  padding:4px 6px;border:1px solid var(--line);border-radius:6px;background:var(--surface);
}
.icon-btn{
  display:none;width:38px;height:38px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);
  color:var(--ink-2);transition:border-color .18s ease,color .18s ease,background-color .18s ease;
}
@media (min-width:1024px){.icon-btn{display:inline-flex}}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--bg-alt)}
.menu-toggle{
  display:inline-flex;width:38px;height:38px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);
}
@media (min-width:1024px){.menu-toggle{display:none}}
.menu-toggle span{position:relative;display:block;width:16px;height:2px;background:var(--ink);border-radius:2px;transition:background .2s ease}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .2s ease,top .2s ease;
}
.menu-toggle span::before{top:-5px}
.menu-toggle span::after{top:5px}
.menu-toggle[aria-expanded="true"] span{background:transparent}
.menu-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.menu-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-sm);font-weight:600;line-height:1;
  padding:14px 28px;font-size:.9375rem;
  transition:transform .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-sm{padding:10px 18px;font-size:.875rem}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(242,112,60,.22)}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 3px 10px rgba(242,112,60,.2)}
.btn-secondary{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn-secondary:hover{border-color:var(--brand);background:var(--bg-alt);color:var(--brand)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;padding:0;
  font-size:.875rem;font-weight:600;color:var(--brand);
}
.btn-ghost .arrow{transition:transform .18s ease}
.btn-ghost:hover{color:var(--accent-deep)}
.btn-ghost:hover .arrow{transform:translateX(3px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;
  background:var(--accent-soft);color:var(--brand);
  font-size:.75rem;font-weight:600;letter-spacing:.04em;
}
.badge-soft{background:var(--brand-soft);color:var(--brand-deep)}
.badge-light{background:rgba(255,255,255,.16);color:#fff}
.tag{
  display:inline-block;padding:5px 12px;border-radius:999px;
  background:var(--bg-alt);border:1px solid var(--line);
  font-size:.75rem;font-weight:600;color:var(--ink-2);
}

/* ---------- 分类页头部 ---------- */
.page-hero{background:var(--bg-alt);border-bottom:1px solid var(--line);padding-block:40px 48px}
@media (min-width:1024px){.page-hero{padding-block:56px 64px}}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--ink-3);margin-bottom:20px}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.crumbs .sep{color:#B9B2A7}
.crumbs .current{color:var(--ink-2)}
.page-hero-grid{display:grid;gap:32px;align-items:center}
@media (min-width:1024px){
  .page-hero-grid{grid-template-columns:1.15fr .85fr;gap:56px}
}
.page-hero h1{
  font-size:clamp(2rem,4.2vw,3.25rem);
  line-height:1.2;letter-spacing:-.01em;font-weight:700;margin-top:18px;
}
.hero-lead{margin-top:18px;font-size:1.0625rem;color:var(--ink-2);max-width:38em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.stat-num{font-size:1.5rem;font-weight:700;line-height:1.2;color:var(--brand);font-variant-numeric:tabular-nums}
.stat-label{font-size:.75rem;color:var(--ink-3);letter-spacing:.02em}
.hero-figure{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-alt);box-shadow:var(--shadow-1);
}
.hero-figure img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover}
.hero-float{
  position:absolute;right:14px;bottom:14px;
  background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:12px;
  padding:10px 14px;font-size:.75rem;color:var(--ink-2);box-shadow:var(--shadow-1);
  display:none;
}
@media (min-width:520px){.hero-float{display:block}}
.hero-float strong{display:block;font-size:.8125rem;color:var(--ink)}

/* ---------- 通用标题 ---------- */
.section-head{max-width:640px;margin-bottom:32px}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.3;font-weight:700;letter-spacing:-.01em}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:.9375rem}
.eyebrow{
  display:inline-block;margin-bottom:14px;
  font-size:.75rem;font-weight:600;letter-spacing:.08em;color:var(--accent-deep);
  text-transform:uppercase;
}

/* ---------- 图文交替列表 ---------- */
.entry-list{display:grid;gap:28px}
.entry-item{
  display:grid;gap:20px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow-1);
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
@media (min-width:768px){
  .entry-item{grid-template-columns:220px 1fr;align-items:center;padding:24px;gap:28px}
  .entry-item.reverse .entry-media{order:2}
  .entry-item.reverse .entry-body{order:1}
}
.entry-item:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#CFE0DE}
.entry-media{
  border-radius:12px;overflow:hidden;background:var(--bg-alt);border:1px solid var(--line);
}
.entry-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover}
.entry-body h3{font-size:1.25rem;font-weight:600;line-height:1.45;margin-top:12px}
.entry-body p{margin-top:10px;color:var(--ink-2);font-size:.9375rem}
.entry-body .btn-ghost{margin-top:16px}

/* ---------- 步骤卡 ---------- */
.steps{display:grid;gap:16px;margin-top:8px}
.step{
  display:grid;grid-template-columns:56px 1fr;gap:16px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow-1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
@media (min-width:768px){
  .step{grid-template-columns:64px 1fr;padding:24px 28px;gap:24px}
}
.step:hover{border-color:var(--brand);box-shadow:var(--shadow-2)}
.step-num{
  font-size:clamp(1.75rem,3vw,2.25rem);font-weight:700;line-height:1;
  color:var(--accent);font-variant-numeric:tabular-nums;
}
.step h3{font-size:1.0625rem;font-weight:600}
.step p{margin-top:8px;color:var(--ink-2);font-size:.9375rem}

/* ---------- 清单 + 信息卡 ---------- */
.split{display:grid;gap:32px}
@media (min-width:1024px){.split{grid-template-columns:1.05fr .95fr;gap:56px;align-items:start}}
.check-list{display:grid;gap:14px;margin-top:24px}
.check-list li{
  display:grid;grid-template-columns:24px 1fr;gap:12px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px;
  font-size:.9375rem;color:var(--ink-2);
  transition:border-color .2s ease,background-color .2s ease;
}
.check-list li:hover{border-color:var(--brand);background:#FCFEFD}
.check-list li strong{display:block;color:var(--ink);font-weight:600;font-size:.9375rem}
.check-mark{
  width:24px;height:24px;border-radius:50%;background:var(--accent-soft);color:var(--accent-deep);
  display:inline-flex;align-items:center;justify-content:center;font-size:.8125rem;font-weight:700;margin-top:2px;
}
.info-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-1);
}
.info-card + .info-card{margin-top:20px}
.info-card h3{font-size:1.0625rem;font-weight:600}
.info-card p{margin-top:10px;font-size:.9375rem;color:var(--ink-2)}
.mini-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px}
.mini-stat{
  background:var(--bg-alt);border-radius:12px;padding:14px 12px;text-align:center;
}
.mini-stat b{display:block;font-size:1.25rem;color:var(--brand);line-height:1.3;font-variant-numeric:tabular-nums}
.mini-stat span{font-size:.75rem;color:var(--ink-3)}
.swatch-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;margin-top:8px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#CFE0DE;box-shadow:var(--shadow-2)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;cursor:pointer;list-style:none;
  font-size:.9375rem;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:none;width:24px;height:24px;line-height:22px;text-align:center;
  border:1px solid var(--line);border-radius:50%;color:var(--ink-3);font-size:1rem;font-weight:400;
  transition:transform .22s ease,color .22s ease,border-color .22s ease;
}
.faq-item[open] summary::after{content:"−";color:var(--accent-deep);border-color:var(--accent-soft);background:var(--accent-soft)}
.faq-item summary:hover{color:var(--brand)}
.faq-body{padding:0 20px 18px;color:var(--ink-2);font-size:.9375rem}

/* ---------- 文字链接列表 ---------- */
.link-list{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.link-list a{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;border-bottom:1px solid var(--line);
  transition:background-color .18s ease,color .18s ease;
}
.link-list li:last-child a{border-bottom:0}
.link-list a:hover{background:var(--bg-alt);color:var(--brand)}
.link-list .link-title{font-weight:600;font-size:.9375rem}
.link-list .link-desc{display:block;font-size:.8125rem;color:var(--ink-3);font-weight:400;margin-top:2px}
.link-list .arrow{color:var(--ink-3);transition:transform .18s ease,color .18s ease}
.link-list a:hover .arrow{color:var(--accent);transform:translateX(3px)}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:linear-gradient(160deg,#0F5C5A 0%,#123F3D 100%);
  color:#fff;border-radius:var(--radius);
  padding:36px 24px;
  display:grid;gap:24px;align-items:center;
  position:relative;overflow:hidden;
}
@media (min-width:1024px){
  .cta-band{grid-template-columns:1fr auto;padding:48px 56px;gap:40px}
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.045) 0 2px,transparent 2px 14px);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(1.5rem,2.6vw,2rem);line-height:1.3;font-weight:700;position:relative;z-index:1}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.78);font-size:.9375rem;max-width:46em;position:relative;z-index:1}
.cta-band .cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:1023px){.cta-band .btn{width:100%}}
.cta-note{margin-top:14px;font-size:.75rem;color:rgba(255,255,255,.6);position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--line);padding-block:48px 28px;margin-top:0}
.footer-grid{display:grid;gap:32px}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}}
.footer-brand .logo{font-size:1rem}
.footer-brand p{margin-top:16px;font-size:.875rem;color:var(--ink-2);max-width:32em}
.footer-contact{margin-top:16px;font-size:.8125rem;color:var(--ink-3);line-height:1.9}
.footer-contact a{color:var(--brand)}
.footer-contact a:hover{text-decoration:underline;text-underline-offset:3px}
.footer-col h3{font-size:.8125rem;font-weight:600;letter-spacing:.06em;color:var(--ink);margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:.875rem;color:var(--ink-2)}
.footer-col ul a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.footer-col .btn{margin-top:16px}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  font-size:.75rem;color:var(--ink-3);
}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  display:none;position:fixed;left:0;right:0;top:56px;bottom:0;z-index:55;
  background:#fff;padding:20px;overflow-y:auto;
  border-top:1px solid var(--line);
}
.mobile-drawer.open{display:block}
@media (min-width:1024px){.mobile-drawer{display:none !important}}
.drawer-link{
  display:block;padding:14px 4px;font-size:1.0625rem;font-weight:500;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer-link.active{color:var(--brand);font-weight:600}
.drawer-search{display:flex;width:100%;margin-top:20px;background:var(--bg-alt)}
.drawer-cta{width:100%;margin-top:16px}

/* roulang page: category3 */
:root{
  --brand:#0F5C5A;
  --brand-dark:#0A4644;
  --accent:#F2703C;
  --accent-dark:#D95B29;
  --accent-soft:#FFE7DC;
  --bg:#FBF9F6;
  --bg-alt:#F1EEE8;
  --surface:#FFFFFF;
  --line:#E3DED5;
  --ink:#17211F;
  --ink-2:#4A5551;
  --ink-3:#7C8681;
  --ok:#2F8F6B;
  --warn:#C98A1B;
  --err:#C2453B;
  --r-card:16px;
  --r-btn:10px;
  --r-input:10px;
  --r-media:12px;
  --shadow-1:0 1px 2px rgba(23,33,31,.06);
  --shadow-2:0 10px 28px rgba(15,92,90,.12);
  --container:1200px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  font-size:1rem;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent);}
button{font-family:inherit;cursor:pointer;}
input,button,textarea,select{font:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:20px;
}
@media (min-width:768px){.container{padding-inline:32px;}}
@media (min-width:1280px){.container{padding-inline:40px;}}

.section{padding-block:56px;}
@media (min-width:1024px){.section{padding-block:88px;}}
.section-alt{background:var(--bg-alt);}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.75rem;font-weight:600;letter-spacing:.04em;
  color:var(--brand);background:var(--accent-soft);
  padding:5px 12px;border-radius:999px;
}
.eyebrow.on-dark{background:rgba(255,255,255,.14);color:#fff;}

h1,.h1{
  font-size:clamp(2rem,4.2vw,3.25rem);
  font-weight:700;line-height:1.2;letter-spacing:-.01em;
}
h2,.h2{
  font-size:clamp(1.5rem,2.6vw,2.125rem);
  font-weight:700;line-height:1.3;letter-spacing:-.005em;
}
h3,.h3{font-size:1.25rem;font-weight:600;line-height:1.45;}
.lead{font-size:1.0625rem;line-height:1.8;color:var(--ink-2);}
.muted{color:var(--ink-3);font-size:.875rem;}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--ink-2);}

/* ====== header ====== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:20px;
  height:56px;
}
@media (min-width:1024px){.header-inner{height:64px;gap:28px;}}
.logo{
  display:inline-flex;align-items:center;gap:9px;
  flex-shrink:0;color:var(--ink);
}
.logo:hover{color:var(--ink);}
.logo svg{width:26px;height:26px;flex-shrink:0;}
.logo-text{
  font-size:.9375rem;font-weight:600;letter-spacing:-.01em;
  white-space:nowrap;
}
@media (min-width:1024px){.logo-text{font-size:1rem;}}
.desktop-nav{display:none;}
@media (min-width:1024px){
  .desktop-nav{display:flex;align-items:center;gap:24px;margin-left:8px;}
}
.nav-link{
  position:relative;font-size:.9375rem;font-weight:500;
  color:var(--ink-2);padding-block:6px;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);
  width:0;height:2px;background:var(--accent);border-radius:2px;
  transition:width .2s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after,.nav-link.active::after{width:60%;}
.nav-link.active{color:var(--brand);font-weight:600;}

.header-right{display:flex;align-items:center;gap:10px;margin-left:auto;}
.cmd-search{
  display:none;align-items:center;gap:8px;
  width:220px;height:38px;padding:0 10px;
  background:var(--bg-alt);border:1px solid var(--line);
  border-radius:var(--r-input);
  transition:border-color .18s ease, box-shadow .18s ease;
}
@media (min-width:1180px){.cmd-search{display:flex;}}
.cmd-search:focus-within{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(15,92,90,.12);
  background:#fff;
}
.cmd-search input{
  flex:1;min-width:0;border:0;outline:none;background:transparent;
  font-size:.875rem;color:var(--ink);
}
.cmd-search input::placeholder{color:var(--ink-3);}
.kbd{
  flex-shrink:0;font-size:.6875rem;line-height:1;
  color:var(--ink-3);background:#fff;border:1px solid var(--line);
  border-radius:5px;padding:3px 5px;
}
.icon-btn{
  display:none;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:var(--r-input);
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  transition:all .18s ease;
}
@media (min-width:1024px){.icon-btn{display:inline-flex;}}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--bg-alt);}

.menu-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border:1px solid var(--line);
  border-radius:var(--r-input);background:#fff;color:var(--ink);
}
@media (min-width:1024px){.menu-toggle{display:none;}}
.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after{
  display:block;width:16px;height:2px;border-radius:2px;
  background:currentColor;transition:transform .2s ease, opacity .2s ease;
  content:"";
}
.menu-toggle span{position:relative;}
.menu-toggle span::before{position:absolute;top:-5px;left:0;}
.menu-toggle span::after{position:absolute;top:5px;left:0;}
.menu-toggle[aria-expanded="true"] span{background:transparent;}
.menu-toggle[aria-expanded="true"] span::before{transform:translateY(5px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span::after{transform:translateY(-5px) rotate(-45deg);}

.mobile-drawer{
  display:none;
  position:fixed;inset:56px 0 0 0;
  background:#fff;z-index:55;
  padding:24px 20px 40px;
  overflow-y:auto;
  border-top:1px solid var(--line);
}
.mobile-drawer.open{display:block;}
.drawer-link{
  display:block;font-size:1.125rem;font-weight:500;
  color:var(--ink);padding:15px 0;
  border-bottom:1px solid var(--line);
}
.drawer-link:first-child{border-top:1px solid var(--line);}
.drawer-link.active{color:var(--brand);font-weight:600;}
.drawer-search{
  margin-top:24px;display:flex;align-items:center;gap:8px;
  background:var(--bg-alt);border:1px solid var(--line);
  border-radius:var(--r-input);padding:0 12px;height:44px;
}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:.9375rem;}
.drawer-cta{margin-top:16px;display:block;width:100%;text-align:center;}

/* ====== buttons ====== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:600;font-size:.9375rem;
  border:1px solid transparent;text-align:center;
  transition:transform .18s ease, background-color .18s ease,
             border-color .18s ease, box-shadow .18s ease, color .18s ease;
}
.btn-lg{padding:14px 28px;}
.btn-md{padding:10px 20px;}
.btn-sm{padding:8px 14px;font-size:.875rem;}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(242,112,60,.22);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(242,112,60,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-secondary{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-secondary:hover{background:var(--bg-alt);border-color:var(--brand);color:var(--brand);}
.btn-ghost{background:transparent;color:var(--brand);padding:6px 0;font-weight:600;}
.btn-ghost svg{transition:transform .18s ease;}
.btn-ghost:hover{color:var(--accent);}
.btn-ghost:hover svg{transform:translateX(2px);}
.btn[disabled]{opacity:.45;cursor:not-allowed;}

/* ====== breadcrumb ====== */
.breadcrumb{padding-block:18px 0;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--ink-3);}
.breadcrumb li::after{content:"/";margin-left:8px;color:var(--line);}
.breadcrumb li:last-child::after{content:"";}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb [aria-current]{color:var(--ink-2);}

/* ====== page hero (浅底 + 右侧小图) ====== */
.page-hero{background:var(--bg-alt);border-bottom:1px solid var(--line);padding-block:40px 48px;}
@media (min-width:1024px){.page-hero{padding-block:56px 64px;}}
.page-hero-grid{display:grid;gap:28px;align-items:center;}
@media (min-width:900px){
  .page-hero-grid{grid-template-columns:minmax(0,1fr) 340px;gap:48px;}
}
.page-hero h1{margin:16px 0 14px;}
.page-hero .lead{max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:28px;padding-top:24px;border-top:1px solid var(--line);}
.hero-stats .num{font-size:1.5rem;font-weight:700;color:var(--brand);line-height:1.2;font-variant-numeric:tabular-nums;}
.hero-stats .lbl{font-size:.8125rem;color:var(--ink-3);}
.hero-media{
  border-radius:var(--r-media);overflow:hidden;
  border:1px solid var(--line);background:#fff;
  box-shadow:var(--shadow-1);
}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}

/* ====== resource cards (3 列) ====== */
.card-grid{display:grid;gap:16px;}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}}
.card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-1);
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  display:flex;flex-direction:column;height:100%;
  overflow:hidden;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand);}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:1.125rem;}
.card-body p{font-size:.9375rem;color:var(--ink-2);line-height:1.7;}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.card-icon{
  width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--accent-soft);color:var(--brand);
}
.tag-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:10px;}
.tag{
  font-size:.75rem;font-weight:600;letter-spacing:.02em;
  color:var(--brand);background:var(--bg-alt);
  border:1px solid var(--line);
  padding:3px 9px;border-radius:999px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.75rem;font-weight:600;letter-spacing:.04em;
  color:var(--brand);background:var(--accent-soft);
  padding:4px 10px;border-radius:999px;
}
.badge-outline{background:#fff;border:1px solid var(--line);color:var(--ink-2);}

/* ====== steps ====== */
.steps{display:grid;gap:14px;}
.step{
  display:grid;grid-template-columns:56px minmax(0,1fr);
  gap:14px;align-items:start;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:20px 20px;
  transition:border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
@media (min-width:768px){.step{grid-template-columns:64px minmax(0,1fr);gap:22px;padding:24px 26px;}}
.step:hover{border-color:var(--brand);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.step-num{
  font-size:1.75rem;font-weight:700;line-height:1;
  color:var(--accent);font-variant-numeric:tabular-nums;
  padding-top:2px;
}
.step-body h3{margin-bottom:6px;}
.step-body p{font-size:.9375rem;color:var(--ink-2);line-height:1.75;}
.step-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}

/* ====== split block ====== */
.split{display:grid;gap:28px;}
@media (min-width:960px){.split{grid-template-columns:minmax(0,1fr) 380px;gap:48px;align-items:start;}}

.info-panel{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-1);
}
.info-panel h3{font-size:1.0625rem;margin-bottom:14px;}
.check-list{display:grid;gap:12px;}
.check-list li{display:flex;gap:10px;font-size:.9375rem;color:var(--ink-2);line-height:1.65;}
.check-list svg{flex-shrink:0;margin-top:4px;color:var(--accent);}

/* ====== FAQ ====== */
.faq-list{display:grid;gap:12px;}
.faq{
  background:var(--surface);border:1px solid var(--line);
  border-radius:12px;overflow:hidden;
  transition:border-color .18s ease, box-shadow .18s ease;
}
.faq[open]{border-color:var(--brand);box-shadow:var(--shadow-1);}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 20px;min-height:58px;
  font-size:.9688rem;font-weight:600;color:var(--ink);
  transition:background-color .18s ease,color .18s ease;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{background:var(--bg-alt);color:var(--brand);}
.faq .sign{
  flex-shrink:0;width:22px;height:22px;position:relative;
  color:var(--ink-3);transition:transform .22s ease,color .18s ease;
}
.faq .sign::before,.faq .sign::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq .sign::before{top:10px;left:2px;width:18px;height:2px;}
.faq .sign::after{left:10px;top:2px;width:2px;height:18px;}
.faq[open] .sign{transform:rotate(45deg);color:var(--accent);}
.faq-body{padding:0 20px 20px;font-size:.9375rem;color:var(--ink-2);line-height:1.8;}
.faq-body p+p{margin-top:8px;}

/* ====== CTA band ====== */
.cta-band{
  background:linear-gradient(160deg,#0F5C5A 0%,#123F3D 100%);
  border-radius:20px;
  padding:36px 24px;
  color:#fff;
  position:relative;overflow:hidden;
}
@media (min-width:900px){.cta-band{padding:52px 48px;}}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 2px,transparent 2px 14px);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:grid;gap:22px;align-items:center;}
@media (min-width:900px){.cta-inner{grid-template-columns:minmax(0,1fr) auto;gap:40px;}}
.cta-band h2{color:#fff;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:.9375rem;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-actions .btn{width:100%;}
@media (min-width:520px){.cta-actions .btn{width:auto;}}
.cta-note{margin-top:14px;font-size:.8125rem;color:rgba(255,255,255,.62);}

/* ====== continue list ====== */
.linklist{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);
}
.linklist li+li{border-top:1px solid var(--line);}
.linklist a{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;color:var(--ink);font-weight:600;font-size:.9688rem;
  transition:background-color .18s ease,color .18s ease;
}
.linklist a:hover{background:var(--bg-alt);color:var(--brand);}
.linklist a svg{color:var(--ink-3);transition:transform .18s ease,color .18s ease;flex-shrink:0;}
.linklist a:hover svg{color:var(--accent);transform:translateX(3px);}
.linklist .sub{display:block;font-weight:400;font-size:.8125rem;color:var(--ink-3);margin-top:2px;}

/* ====== footer ====== */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--line);margin-top:0;}
.footer-inner{padding-block:48px 28px;}
.footer-grid{display:grid;gap:32px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand .logo{margin-bottom:14px;}
.footer-brand p{font-size:.9375rem;color:var(--ink-2);line-height:1.75;max-width:360px;}
.footer-contact{margin-top:16px;font-size:.875rem;color:var(--ink-2);line-height:1.9;}
.footer-contact a{color:var(--brand);}
.footer-col h3{font-size:.9375rem;font-weight:700;color:var(--ink);margin-bottom:14px;letter-spacing:.01em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col li a{font-size:.9375rem;color:var(--ink-2);}
.footer-col li a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.footer-col .btn{margin-top:16px;}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  font-size:.8125rem;color:var(--ink-3);
}

/* ====== misc ====== */
.divider{height:1px;background:var(--line);border:0;margin-block:0;}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* roulang page: category2 */
:root{
  --brand:#0F5C5A;
  --brand-dark:#0A4644;
  --accent:#F2703C;
  --accent-dark:#D95B29;
  --accent-soft:#FFE7DC;
  --bg:#FBF9F6;
  --bg-alt:#F1EEE8;
  --surface:#FFFFFF;
  --line:#E3DED5;
  --ink:#17211F;
  --ink-2:#4A5551;
  --ink-3:#7C8681;
  --ok:#2F8F6B;
  --warn:#C98A1B;
  --err:#C2453B;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-media:12px;
  --shadow-sm:0 1px 2px rgba(23,33,31,.06);
  --shadow-md:0 10px 28px rgba(15,92,90,.12);
  --container:1200px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body.site-body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body.site-body img{display:block;max-width:100%;height:auto;}
body.site-body a{color:var(--brand);text-decoration:none;}
body.site-body h1,body.site-body h2,body.site-body h3,body.site-body h4{margin:0;color:inherit;}
body.site-body p{margin:0;}
body.site-body ul{margin:0;padding:0;list-style:none;}
body.site-body button{font-family:inherit;}
.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:20px;}
@media (min-width:768px){.container{padding-inline:32px;}}
@media (min-width:1280px){.container{padding-inline:40px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:22px;min-height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:600;font-size:1rem;white-space:nowrap;}
.logo svg{width:26px;height:26px;flex:0 0 auto;}
.logo-text{letter-spacing:-.005em;}
.desktop-nav{display:flex;align-items:center;gap:22px;margin-left:6px;}
.nav-link{position:relative;display:inline-block;padding:6px 0;font-size:.9375rem;font-weight:500;color:var(--ink-2);transition:color .18s ease;}
.nav-link:hover{color:var(--brand);}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::after{content:"";position:absolute;left:0;bottom:-2px;width:60%;height:2px;border-radius:2px;background:var(--accent);}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.cmd-search{
  display:flex;align-items:center;gap:8px;
  width:226px;height:38px;padding:0 10px;
  background:var(--bg-alt);border:1px solid var(--line);border-radius:10px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.cmd-search:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(15,92,90,.12);}
.cmd-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-family:inherit;font-size:.875rem;color:var(--ink);
}
.cmd-search input::placeholder{color:var(--ink-3);}
.cmd-search svg{flex:0 0 auto;}
.kbd{
  flex:0 0 auto;font-family:ui-sans-serif,system-ui,sans-serif;
  font-size:.6875rem;line-height:1.4;color:var(--ink-3);
  background:#fff;border:1px solid var(--line);border-radius:5px;padding:1px 5px;
}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;
  border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink-2);
  cursor:pointer;transition:color .18s,border-color .18s,background .18s;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);background:var(--bg-alt);}
.icon-btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.menu-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
  background:#fff;cursor:pointer;position:relative;
}
.menu-toggle span,.menu-toggle span::before,.menu-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;border-radius:2px;background:var(--ink);
  transition:transform .2s ease,opacity .2s ease;
}
.menu-toggle span{top:50%;transform:translate(-50%,-50%);}
.menu-toggle span::before,.menu-toggle span::after{content:"";left:0;}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}
.menu-toggle[aria-expanded="true"] span{background:transparent;}
.menu-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}
.mobile-drawer{display:none;}

@media (max-width:1023px){
  .header-inner{min-height:56px;gap:12px;}
  .desktop-nav{display:none;}
  .header-right .cmd-search,.header-right .icon-btn{display:none;}
  .menu-toggle{display:block;}
  .logo-text{font-size:.9375rem;}
  .mobile-drawer{
    position:fixed;left:0;right:0;top:57px;bottom:0;z-index:70;
    background:#fff;padding:16px 20px 28px;overflow-y:auto;
    border-top:1px solid var(--line);
    display:none;flex-direction:column;gap:2px;
  }
  .mobile-drawer.is-open{display:flex;}
  .drawer-link{
    display:block;padding:14px 2px;font-size:1.0625rem;color:var(--ink);
    border-bottom:1px solid var(--line);transition:color .18s;
  }
  .drawer-link:hover,.drawer-link.active{color:var(--brand);font-weight:600;}
  .mobile-drawer .cmd-search{display:flex;width:100%;height:44px;margin:18px 0 12px;}
  .mobile-drawer .btn{width:100%;}
  .mobile-drawer .drawer-note{font-size:.8125rem;color:var(--ink-3);margin-top:12px;line-height:1.7;}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:inherit;font-weight:600;border-radius:var(--radius-btn);
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .16s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;padding:14px 28px;font-size:1rem;box-shadow:0 6px 16px rgba(242,112,60,.24);}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:0 10px 22px rgba(242,112,60,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(242,112,60,.22);}
.btn-primary:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.btn-secondary{background:transparent;border-color:var(--line);color:var(--ink);padding:14px 28px;font-size:1rem;}
.btn-secondary:hover{border-color:var(--brand);background:var(--bg-alt);color:var(--brand);}
.btn-secondary:active{transform:translateY(1px);}
.btn-secondary:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.btn-sm{padding:9px 18px;font-size:.875rem;box-shadow:none;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;background:none;border:0;padding:2px 0;
  color:var(--brand);font-weight:600;font-size:.9375rem;cursor:pointer;transition:color .18s;
}
.btn-ghost svg{transition:transform .18s ease;}
.btn-ghost:hover{color:var(--accent-dark);}
.btn-ghost:hover svg{transform:translateX(2px);}

/* ---------- hero band ---------- */
.page-band{
  background:linear-gradient(160deg,#0F5C5A 0%,#123F3D 100%);
  color:#fff;padding:34px 0 36px;
}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:.8125rem;color:rgba(255,255,255,.62);}
.breadcrumb a{color:rgba(255,255,255,.82);transition:color .18s;}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:#fff;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;
  background:var(--accent-soft);color:var(--brand);
  font-size:.75rem;font-weight:600;letter-spacing:.04em;line-height:1.6;
}
.page-band .badge{background:rgba(255,255,255,.16);color:#fff;}
.page-band h1{
  margin:14px 0 10px;
  font-size:clamp(1.75rem,3.4vw,2.5rem);
  line-height:1.24;font-weight:700;letter-spacing:-.01em;
  max-width:860px;
}
.page-band .band-lead{max-width:680px;color:rgba(255,255,255,.84);font-size:1.0625rem;line-height:1.75;}
.band-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.band-point{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;border-radius:999px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);
  font-size:.8125rem;color:rgba(255,255,255,.9);
}

/* ---------- sections ---------- */
.section{padding-block:52px;}
@media (min-width:768px){.section{padding-block:72px;}}
@media (min-width:1280px){.section{padding-block:84px;}}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:760px;margin-bottom:28px;}
.section-head h2{
  font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.3;font-weight:700;letter-spacing:-.005em;
}
.section-head p{margin-top:10px;color:var(--ink-2);font-size:1rem;}
.eyebrow{
  display:inline-block;margin-bottom:10px;
  font-size:.75rem;font-weight:600;letter-spacing:.08em;
  color:var(--brand);text-transform:none;
}

/* ---------- steps ---------- */
.step-list{display:grid;gap:16px;}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:20px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#CFE0DA;}
.step-no{
  font-family:ui-sans-serif,system-ui,sans-serif;
  font-size:1.75rem;font-weight:700;line-height:1.1;color:var(--accent);
  letter-spacing:-.02em;
}
.step h3{font-size:1.125rem;font-weight:600;margin-bottom:6px;line-height:1.5;}
.step p{color:var(--ink-2);font-size:.9375rem;}
.step-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:999px;
  background:#F4F7F5;border:1px solid var(--line);
  color:var(--ink-2);font-size:.75rem;font-weight:500;line-height:1.7;
}
.tag-accent{background:var(--accent-soft);border-color:transparent;color:var(--brand);}

/* ---------- stat strip ---------- */
.stat-strip{
  margin-top:28px;
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.stat{padding:20px 22px;border-right:1px solid var(--line);}
.stat:last-child{border-right:0;}
.stat-n{display:block;font-family:ui-sans-serif,system-ui,sans-serif;font-size:1.625rem;font-weight:700;color:var(--brand);line-height:1.2;}
.stat-l{display:block;margin-top:4px;font-size:.8125rem;color:var(--ink-3);line-height:1.6;}

/* ---------- feature cards ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.feature-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#CFE0DA;}
.media{aspect-ratio:16/9;background:var(--bg-alt);overflow:hidden;}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.feature-card:hover .media img{transform:scale(1.02);}
.feature-body{padding:22px 24px 24px;}
.feature-body h3{font-size:1.125rem;font-weight:600;margin-bottom:8px;}
.feature-body p{color:var(--ink-2);font-size:.9375rem;}
.feature-body .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

/* ---------- scene ---------- */
.scene-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center;}
.scene-figure{
  border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);background:var(--bg-alt);
}
.scene-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.check-list{display:grid;gap:12px;margin-top:18px;}
.check-item{
  display:grid;grid-template-columns:24px 1fr;gap:12px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  padding:14px 16px;box-shadow:var(--shadow-sm);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.check-item:hover{border-color:var(--brand);box-shadow:var(--shadow-md);}
.check-mark{
  width:24px;height:24px;border-radius:50%;display:grid;place-items:center;
  background:var(--accent-soft);color:var(--brand);font-size:.75rem;font-weight:700;margin-top:3px;
}
.check-item strong{display:block;font-size:.9375rem;font-weight:600;line-height:1.5;}
.check-item span{display:block;font-size:.875rem;color:var(--ink-2);margin-top:2px;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
}
.faq[open]{border-color:#CFE0DA;box-shadow:var(--shadow-md);}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;
  font-size:1rem;font-weight:600;line-height:1.6;color:var(--ink);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--brand);}
.faq summary:focus-visible{outline:2px solid var(--brand);outline-offset:-2px;}
.faq .plus{
  flex:0 0 auto;position:relative;width:18px;height:18px;
  transition:transform .22s ease;
}
.faq .plus::before,.faq .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
}
.faq .plus::before{width:14px;height:2px;transform:translate(-50%,-50%);}
.faq .plus::after{width:2px;height:14px;transform:translate(-50%,-50%);}
.faq[open] .plus{transform:rotate(45deg);}
.faq-body{padding:0 20px 18px;color:var(--ink-2);font-size:.9375rem;}

/* ---------- more links ---------- */
.more-list{display:grid;gap:0;border-top:1px solid var(--line);}
.more-item a{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 4px;border-bottom:1px solid var(--line);
  color:var(--ink);font-weight:600;transition:background .18s,color .18s,padding .18s;
}
.more-item a:hover{background:var(--bg-alt);color:var(--brand);padding-inline:12px;}
.more-item span{display:block;font-size:.8125rem;font-weight:400;color:var(--ink-3);margin-top:2px;}
.more-item svg{flex:0 0 auto;color:var(--ink-3);transition:transform .18s ease,color .18s ease;}
.more-item a:hover svg{transform:translateX(2px);color:var(--accent);}

/* ---------- cta band ---------- */
.cta-band{background:var(--brand);color:#fff;padding-block:52px;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(1.375rem,2.4vw,1.875rem);line-height:1.32;font-weight:700;max-width:620px;}
.cta-inner p{margin-top:10px;color:rgba(255,255,255,.78);font-size:.9375rem;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-band .btn-secondary{border-color:rgba(255,255,255,.36);color:#fff;}
.cta-band .btn-secondary:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}
.cta-note{margin-top:14px;font-size:.8125rem;color:rgba(255,255,255,.62);}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--line);padding-block:52px 24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.footer-brand .logo{margin-bottom:14px;}
.footer-brand p{color:var(--ink-2);font-size:.9375rem;max-width:340px;}
.footer-contact{margin-top:16px;font-size:.875rem;color:var(--ink-3);line-height:1.9;}
.footer-contact a{color:var(--brand);}
.footer-contact a:hover{text-decoration:underline;text-underline-offset:2px;}
.footer-col h3{font-size:.875rem;font-weight:600;letter-spacing:.04em;color:var(--ink);margin-bottom:14px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col li a{font-size:.9375rem;color:var(--ink-2);transition:color .18s;}
.footer-col li a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:2px;}
.footer-col .btn{margin-top:16px;}
.footer-bottom{
  margin-top:40px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:.8125rem;color:var(--ink-3);
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .feature-grid{gap:18px;}
  .scene-grid{grid-template-columns:1fr;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .page-band{padding:26px 0 30px;}
  .page-band .band-lead{font-size:1rem;}
  .step{grid-template-columns:44px 1fr;gap:14px;padding:18px;}
  .step-no{font-size:1.375rem;}
  .stat-strip{grid-template-columns:1fr 1fr;}
  .stat{border-right:0;border-bottom:1px solid var(--line);}
  .stat:nth-child(odd){border-right:1px solid var(--line);}
  .stat:nth-last-child(-n+2){border-bottom:0;}
  .feature-grid{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}
@media (max-width:519px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-brand p{max-width:none;}
  .band-points{gap:8px;}
  .band-point{font-size:.75rem;padding:5px 10px;}
  .more-item a{font-size:.9375rem;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category4 */
:root{
  --brand:#0F5C5A;
  --brand-dark:#0A4644;
  --accent:#F2703C;
  --accent-dark:#D95B29;
  --accent-soft:#FFE7DC;
  --bg:#FBF9F6;
  --bg-alt:#F1EEE8;
  --surface:#FFFFFF;
  --line:#E3DED5;
  --ink:#17211F;
  --ink-2:#4A5551;
  --ink-3:#7C8681;
  --ok:#2F8F6B;
  --warn:#C98A1B;
  --err:#C2453B;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(23,33,31,.06);
  --shadow-hover:0 10px 28px rgba(15,92,90,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-inline:20px}
@media(min-width:768px){.container{padding-inline:32px}}
@media(min-width:1280px){.container{padding-inline:40px}}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:64px}
.logo{display:inline-flex;align-items:center;gap:9px;flex-shrink:0}
.logo svg{width:26px;height:26px;flex-shrink:0}
.logo-text{font-size:1rem;font-weight:600;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
@media(max-width:520px){.logo-text{font-size:.9375rem}.logo svg{width:23px;height:23px}}
.desktop-nav{display:none;align-items:center;gap:22px;margin-left:10px}
.nav-link{position:relative;display:inline-block;font-size:.9375rem;font-weight:500;color:var(--ink-2);padding:6px 0;transition:color .18s ease;white-space:nowrap}
.nav-link:hover{color:var(--brand)}
.nav-link.active{color:var(--ink)}
.nav-link.active::after{content:"";position:absolute;left:0;bottom:0;width:60%;height:2px;background:var(--accent);border-radius:2px}
.header-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.cmd-search{display:none;align-items:center;gap:8px;width:216px;height:38px;padding:0 10px;border:1px solid var(--line);border-radius:10px;background:var(--bg-alt);transition:border-color .18s ease,background .18s ease}
.cmd-search:focus-within{border-color:var(--brand);background:#fff}
.cmd-search input{flex:1;min-width:0;border:0;background:none;outline:none;font-size:.8125rem;color:var(--ink)}
.cmd-search input::placeholder{color:var(--ink-3)}
.kbd{flex-shrink:0;font-size:.6875rem;line-height:1.4;color:var(--ink-3);border:1px solid var(--line);border-radius:5px;padding:1px 5px;background:#fff}
.icon-btn{display:none;width:38px;height:38px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:10px;color:var(--ink-2);transition:border-color .18s ease,color .18s ease,background .18s ease}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--bg-alt)}
.menu-toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;transition:border-color .18s ease,background .18s ease}
.menu-toggle:hover{border-color:var(--brand);background:var(--bg-alt)}
.menu-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:background .18s ease}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
@media(min-width:1024px){
  .desktop-nav{display:flex}
  .cmd-search{display:flex}
  .icon-btn{display:inline-flex}
  .menu-toggle{display:none}
}
.mobile-drawer{
  display:none;
  position:fixed;left:0;right:0;top:64px;bottom:0;
  z-index:55;
  background:#fff;
  padding:16px 20px 32px;
  flex-direction:column;
  gap:2px;
  overflow-y:auto;
  border-top:1px solid var(--line);
}
.mobile-drawer.open{display:flex}
.drawer-link{padding:14px 2px;font-size:1.0625rem;font-weight:500;color:var(--ink-2);border-bottom:1px solid var(--line);transition:color .18s ease}
.drawer-link:hover{color:var(--brand)}
.drawer-link.active{color:var(--brand);font-weight:600}
.drawer-search{margin-top:18px;display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;border:1px solid var(--line);border-radius:10px;background:var(--bg-alt)}
.drawer-search input{flex:1;min-width:0;border:0;background:none;outline:none;font-size:.9375rem;color:var(--ink)}
.drawer-search input::placeholder{color:var(--ink-3)}
.drawer-cta{margin-top:16px;display:flex;flex-direction:column;gap:12px}
@media(min-width:1024px){.mobile-drawer{display:none!important}}

/* ============ buttons / badges ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--radius-btn);
  font-size:.9375rem;font-weight:600;padding:12px 24px;
  transition:transform .16s ease,background .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(242,112,60,.22)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:0 10px 22px rgba(242,112,60,.26)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(242,112,60,.2)}
.btn-secondary{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-secondary:hover{border-color:var(--brand);background:var(--bg-alt)}
.btn-secondary:active{background:#E9E4DB}
.btn-ghost{background:transparent;color:var(--brand);padding:8px 0;font-weight:600}
.btn-ghost .arrow{transition:transform .18s ease}
.btn-ghost:hover .arrow{transform:translateX(3px)}
.btn-sm{padding:8px 16px;font-size:.875rem}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none!important}
.badge{display:inline-flex;align-items:center;gap:6px;background:var(--accent-soft);color:var(--brand);border-radius:999px;padding:4px 11px;font-size:.75rem;font-weight:600;letter-spacing:.04em;line-height:1.6}
.badge-line{background:rgba(255,255,255,.14);color:#fff}
.badge-soft{background:var(--bg-alt);color:var(--ink-2);border:1px solid var(--line)}
.tag{display:inline-flex;align-items:center;border-radius:999px;background:var(--bg-alt);color:var(--ink-2);font-size:.8125rem;padding:5px 12px;border:1px solid var(--line)}

/* ============ section ============ */
.section{padding-block:56px}
@media(min-width:1024px){.section{padding-block:80px}}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.125rem);font-weight:700;line-height:1.3;letter-spacing:-.01em;margin-top:12px}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:1rem}
.eyebrow{font-size:.75rem;font-weight:600;letter-spacing:.08em;color:var(--brand);text-transform:uppercase}

/* ============ page head ============ */
.page-head{background:var(--bg-alt);border-bottom:1px solid var(--line);padding-block:36px}
@media(min-width:1024px){.page-head{padding-block:56px}}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--ink-3)}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.crumb .sep{color:#C6C0B6}
.crumb .current{color:var(--ink-2)}
.page-head h1{
  font-size:clamp(1.875rem,4vw,2.75rem);
  line-height:1.2;font-weight:700;letter-spacing:-.01em;
  margin-top:18px;max-width:20ch;
}
.page-lead{margin-top:14px;font-size:1.0625rem;color:var(--ink-2);max-width:56ch}
.page-head .badge{margin-top:0}
.head-search{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;max-width:560px}
.head-search label{display:flex;align-items:center;gap:10px;flex:1 1 260px;height:46px;padding:0 14px;background:#fff;border:1px solid var(--line);border-radius:10px;transition:border-color .18s ease,box-shadow .18s ease}
.head-search label:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,92,90,.1)}
.head-search input{flex:1;min-width:0;border:0;background:none;outline:none;font-size:.9375rem;color:var(--ink)}
.head-search input::placeholder{color:var(--ink-3)}
.anchor-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.anchor-row a{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:.875rem;color:var(--ink-2);transition:border-color .18s ease,color .18s ease,background .18s ease}
.anchor-row a:hover{border-color:var(--brand);color:var(--brand);background:#fff}

/* ============ faq layout ============ */
.faq-layout{display:grid;gap:28px;align-items:start}
@media(min-width:1024px){.faq-layout{grid-template-columns:minmax(0,1fr) 340px;gap:36px}}
.faq-group + .faq-group{margin-top:34px}
.faq-group-head{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.faq-group-head h2{font-size:1.125rem;font-weight:700;letter-spacing:-.01em}
.faq-group-dot{width:8px;height:8px;border-radius:999px;background:var(--accent);flex-shrink:0}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  box-shadow:var(--shadow-card);
  margin-bottom:12px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.faq-item:hover{border-color:#CFC8BC}
.faq-item[open]{border-color:rgba(15,92,90,.38);box-shadow:0 10px 24px rgba(15,92,90,.08)}
.faq-item summary{
  list-style:none;
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:17px 20px;
  font-size:1rem;font-weight:600;color:var(--ink);
  cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::marker{content:""}
.faq-q{display:block;line-height:1.65}
.faq-icon{
  flex-shrink:0;position:relative;width:22px;height:22px;margin-top:3px;
  border-radius:999px;background:var(--accent-soft);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.faq-body{padding:0 20px 20px;color:var(--ink-2);font-size:.9375rem;line-height:1.8}
.faq-body p + p{margin-top:10px}
.faq-body strong{color:var(--ink);font-weight:600}
.faq-body ul{margin-top:10px;display:grid;gap:7px}
.faq-body li{position:relative;padding-left:16px}
.faq-body li::before{content:"";position:absolute;left:0;top:.72em;width:5px;height:5px;border-radius:999px;background:var(--accent)}

/* ============ side card ============ */
.side-sticky{display:grid;gap:18px}
@media(min-width:1024px){.side-sticky{position:sticky;top:88px}}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-card)}
.side-card h2{font-size:1.0625rem;font-weight:700;letter-spacing:-.01em}
.side-card p{margin-top:10px;font-size:.9375rem;color:var(--ink-2)}
.side-card .btn{margin-top:14px}
.side-media{border-radius:12px;overflow:hidden;margin-top:16px;border:1px solid var(--line);background:var(--bg-alt)}
.side-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.side-list{margin-top:16px;display:grid;gap:2px}
.side-list li{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:.875rem}
.side-list li:last-child{border-bottom:0}
.side-list .k{color:var(--ink-3)}
.side-list .v{color:var(--ink);font-weight:600;text-align:right}
.side-list .v a{color:var(--brand)}
.side-list .v a:hover{text-decoration:underline;text-underline-offset:3px}

/* ============ steps ============ */
.steps{display:grid;gap:16px}
@media(min-width:768px){.steps{grid-template-columns:repeat(3,1fr);gap:20px}}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(15,92,90,.3)}
.step-num{font-size:2rem;font-weight:700;line-height:1;color:var(--accent);letter-spacing:-.02em}
.step h3{margin-top:12px;font-size:1.0625rem;font-weight:700}
.step p{margin-top:8px;font-size:.9375rem;color:var(--ink-2)}
.step .tag{margin-top:14px}

/* ============ note strip ============ */
.note-strip{
  display:grid;gap:18px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-card);
}
@media(min-width:768px){.note-strip{grid-template-columns:1.1fr 1fr;align-items:center;padding:28px 32px}}
.note-strip h3{font-size:1.125rem;font-weight:700}
.note-strip p{margin-top:8px;font-size:.9375rem;color:var(--ink-2)}
.note-strip img{width:100%;border-radius:12px;aspect-ratio:16/9;object-fit:cover;border:1px solid var(--line)}

/* ============ next links ============ */
.next-grid{display:grid;gap:12px}
.next-item{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:var(--surface);border:1px solid var(--line);border-radius:12px;
  transition:background .18s ease,border-color .18s ease,transform .18s ease;
}
.next-item:hover{background:#fff;border-color:var(--brand);transform:translateX(2px)}
.next-item .t{font-size:1rem;font-weight:600}
.next-item .d{display:block;margin-top:4px;font-size:.875rem;color:var(--ink-3);font-weight:400}
.next-item .arrow{color:var(--ink-3);transition:color .18s ease,transform .18s ease}
.next-item:hover .arrow{color:var(--accent);transform:translateX(3px)}

/* ============ cta band ============ */
.cta-band{
  background:linear-gradient(160deg,#0F5C5A 0%,#123F3D 100%);
  color:#fff;
  padding-block:48px;
  position:relative;
  overflow:hidden;
}
@media(min-width:1024px){.cta-band{padding-block:64px}}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.035) 0 2px,transparent 2px 14px);
  pointer-events:none;
}
.cta-inner{position:relative;display:grid;gap:24px}
@media(min-width:900px){.cta-inner{grid-template-columns:1fr auto;align-items:center;gap:40px}}
.cta-inner h2{font-size:clamp(1.5rem,2.6vw,2rem);font-weight:700;line-height:1.3;letter-spacing:-.01em}
.cta-inner p{margin-top:12px;color:rgba(255,255,255,.78);font-size:.9375rem;max-width:52ch}
.cta-actions{display:flex;flex-direction:column;gap:12px}
@media(min-width:520px){.cta-actions{flex-direction:row;flex-wrap:wrap}}
.cta-band .btn-secondary{border-color:rgba(255,255,255,.35);color:#fff}
.cta-band .btn-secondary:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.6)}
.cta-note{margin-top:14px;font-size:.8125rem;color:rgba(255,255,255,.62)}

/* ============ footer ============ */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--line);padding-top:48px}
.footer-grid{display:grid;gap:32px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}}
.footer-brand .logo{margin-bottom:14px}
.footer-brand p{font-size:.9375rem;color:var(--ink-2);max-width:36ch}
.footer-contact{margin-top:16px;font-size:.875rem;color:var(--ink-2);line-height:2}
.footer-contact a{color:var(--brand);font-weight:600}
.footer-contact a:hover{text-decoration:underline;text-underline-offset:3px}
.footer-col h3{font-size:.9375rem;font-weight:700;color:var(--ink);margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:.9375rem;color:var(--ink-2);transition:color .18s ease}
.footer-col a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.footer-col .btn{margin-top:16px}
.footer-bottom{
  margin-top:40px;padding-block:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  font-size:.8125rem;color:var(--ink-3);
}