/* roulang page: index */
:root{
  --brand-900:#0B3B33;
  --brand-700:#14695A;
  --brand-500:#1F8A73;
  --accent-500:#D4692F;
  --accent-100:#FBEADF;
  --ink:#16201D;
  --ink-muted:#5C6A66;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E4DFD6;
  --warn:#B4802A;
  --ok:#2F7D5D;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(11,59,51,.06);
  --shadow-md:0 10px 28px -12px rgba(11,59,51,.22);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  padding-bottom:88px;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px}}

/* 顶栏 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:60px;gap:16px}
@media (min-width:1024px){.header-inner{height:70px}}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:34px;height:34px;border-radius:9px;background:var(--brand-900);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:15px
}
.logo-text{font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--brand-900);white-space:nowrap}
@media (min-width:1024px){.logo-text{font-size:17px}}
.main-nav{display:none}
@media (min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:26px;flex:1;justify-content:center}
}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-muted);padding:22px 0;transition:color .18s ease;white-space:nowrap
}
.nav-link:hover{color:var(--brand-700)}
.nav-link.is-active{color:var(--brand-900);font-weight:600}
.nav-link.is-active::after{
  content:'';position:absolute;left:0;right:0;bottom:12px;height:2px;background:var(--accent-500);border-radius:2px
}
.header-actions{display:flex;align-items:center;gap:10px}
.menu-toggle{
  width:44px;height:44px;border-radius:var(--radius-btn);border:1px solid var(--line);
  color:var(--brand-900);display:flex;align-items:center;justify-content:center;font-size:17px;background:#fff
}
@media (min-width:1024px){.menu-toggle{display:none}}
.mobile-nav{
  display:none;border-top:1px solid var(--line);background:#fff;padding:8px 20px 18px
}
.mobile-nav.is-open{display:block}
@media (min-width:1024px){.mobile-nav{display:none !important}}
.mobile-nav a{
  display:block;padding:13px 0;font-size:15px;color:var(--ink);border-bottom:1px solid var(--line)
}
.mobile-nav a:last-child{border-bottom:none}
.mobile-nav a.is-active{color:var(--brand-700);font-weight:600}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease;
  border:1px solid transparent;
}
.btn-lg{height:48px;padding:0 26px;font-size:16px}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-accent{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-sm)}
.btn-accent:hover{background:#BE5A24;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-outline{background:transparent;color:var(--brand-900);border-color:var(--brand-900)}
.btn-outline:hover{background:rgba(11,59,51,.06);transform:translateY(-1px)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);transform:translateY(-1px)}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none}

/* 区块 */
.section{padding:48px 0}
@media (min-width:768px){.section{padding:64px 0}}
@media (min-width:1024px){.section{padding:80px 0}}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-title{
  position:relative;padding-left:16px;font-size:22px;font-weight:600;line-height:1.35;letter-spacing:-.01em
}
@media (min-width:768px){.section-title{font-size:28px}}
.section-title::before{
  content:'';position:absolute;left:0;top:.34em;width:4px;height:20px;background:var(--accent-500);border-radius:2px
}
.section-desc{margin-top:10px;font-size:15px;color:var(--ink-muted);max-width:760px}
.text-link{color:var(--brand-700);font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:gap .18s ease,color .18s ease}
.text-link:hover{gap:10px;color:var(--brand-900)}

/* Hero */
.hero{background:#fff;border-bottom:1px solid var(--line);padding:36px 0 44px}
@media (min-width:1024px){.hero{padding:56px 0 64px}}
.hero-grid{display:grid;gap:32px;grid-template-columns:1fr;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.05fr .95fr;gap:48px}}
.hero h1{font-size:28px;line-height:1.35;font-weight:700;letter-spacing:-.01em;margin-top:16px}
@media (min-width:768px){.hero h1{font-size:36px;line-height:1.28}}
.hero-sub{margin-top:16px;font-size:16px;color:var(--ink-muted);max-width:620px}
.hero-cta{display:flex;gap:12px;margin-top:24px;flex-wrap:wrap}
.hero-cta .btn{flex:1 1 auto}
@media (min-width:640px){.hero-cta .btn{flex:0 0 auto}}
.hero-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
@media (min-width:768px){.hero-stats{grid-template-columns:repeat(4,1fr)}}
.hero-stat strong{display:block;font-size:24px;font-weight:600;color:var(--brand-900);line-height:1.2}
.hero-stat span{display:block;font-size:12px;color:var(--ink-muted);margin-top:4px;letter-spacing:.03em}
.hero-stats > .hero-stat{border-left:1px solid var(--line);padding-left:14px}
.hero-stats > .hero-stat:first-child{border-left:none;padding-left:0}
@media (max-width:767px){
  .hero-stats > .hero-stat:nth-child(3){border-left:none;padding-left:0}
}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md)
}
.hero-media::after{
  content:'';position:absolute;right:-12px;bottom:-12px;width:120px;height:120px;
  background:var(--accent-100);border-radius:var(--radius-lg);z-index:-1
}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:999px;padding:4px 12px;font-size:12px;line-height:1.5;letter-spacing:.05em;font-weight:600
}
.badge-brand{background:rgba(11,59,51,.1);color:var(--brand-700)}
.badge-accent{background:var(--accent-100);color:var(--accent-500)}
.badge-light{background:rgba(255,255,255,.16);color:#fff}

/* 价值速览 */
.value-lead{font-size:20px;font-weight:600;line-height:1.6;color:var(--brand-900);max-width:820px}
@media (min-width:768px){.value-lead{font-size:24px}}
.value-grid{display:grid;gap:16px;grid-template-columns:1fr;margin-top:28px}
@media (min-width:768px){.value-grid{grid-template-columns:repeat(3,1fr);gap:24px}}
.value-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-sm);transition:transform .18s ease,box-shadow .18s ease}
.value-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.icon-box{
  width:40px;height:40px;border-radius:10px;background:var(--accent-100);color:var(--accent-500);
  display:flex;align-items:center;justify-content:center;font-size:17px;margin-bottom:14px
}
.value-card h3{font-size:18px;font-weight:600;line-height:1.5}
.value-card p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--ink-muted)}

/* 功能分组（非对称） */
.feature-grid{display:grid;gap:16px;grid-template-columns:1fr}
@media (min-width:768px){.feature-grid{grid-template-columns:repeat(2,1fr);gap:20px}}
@media (min-width:1024px){.feature-grid{grid-template-columns:repeat(3,1fr);gap:24px}}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;
  box-shadow:var(--shadow-sm);display:flex;flex-direction:column;transition:transform .18s ease,box-shadow .18s ease
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.feature-card h3{font-size:18px;font-weight:600;line-height:1.5}
.feature-card p{margin-top:8px;font-size:14px;line-height:1.85;color:var(--ink-muted);flex:1}
.feature-card .text-link{margin-top:16px}
.feature-main{}
@media (min-width:1024px){
  .feature-main{grid-column:span 2;background:linear-gradient(180deg,#fff,#FBFCFB)}
}
.feature-main h3{font-size:20px}
.feature-list{margin-top:14px;display:grid;gap:8px}
@media (min-width:640px){.feature-list{grid-template-columns:1fr 1fr}}
.feature-list li{font-size:14px;color:var(--ink-muted);padding-left:16px;position:relative}
.feature-list li::before{content:'';position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:2px;background:var(--brand-500)}

/* 使用场景 */
.scene{display:grid;gap:24px;grid-template-columns:1fr;align-items:center;padding:28px 0}
@media (min-width:1024px){
  .scene{grid-template-columns:1fr 1fr;gap:48px}
  .scene.reverse .scene-media{order:2}
}
.scene + .scene{border-top:1px solid var(--line)}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-card)}
.scene h3{font-size:20px;font-weight:600;margin-top:12px;line-height:1.45}
.scene p{margin-top:10px;font-size:15px;color:var(--ink-muted)}
.scene-list{margin-top:16px;display:grid;gap:10px}
.scene-list li{position:relative;padding-left:18px;font-size:15px;color:var(--ink)}
.scene-list li::before{content:'';position:absolute;left:0;top:.75em;width:7px;height:7px;border-radius:2px;background:var(--brand-500)}

/* 案例 */
.case-grid{display:grid;gap:16px;grid-template-columns:1fr}
@media (min-width:768px){.case-grid{grid-template-columns:repeat(2,1fr);gap:24px}}
.case-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-sm);overflow:hidden
}
.case-quote{
  position:absolute;right:16px;top:6px;font-size:64px;line-height:1;color:var(--accent-100);font-weight:700;pointer-events:none
}
.case-card h3{font-size:18px;font-weight:600;margin-top:12px;line-height:1.5}
.case-card blockquote{margin:12px 0 0;font-size:15px;color:var(--ink-muted);line-height:1.85}
.case-nums{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.case-nums strong{display:block;font-size:24px;font-weight:600;color:var(--brand-900);line-height:1.2}
.case-nums span{display:block;font-size:12px;color:var(--ink-muted);margin-top:4px}
.case-note{margin-top:16px;font-size:13px;color:var(--ink-muted)}

/* 价格 */
.price-grid{display:grid;gap:16px;grid-template-columns:1fr}
@media (min-width:768px){.price-grid{grid-template-columns:repeat(3,1fr);gap:24px}}
.price-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 22px;display:flex;flex-direction:column;box-shadow:var(--shadow-sm)
}
.price-card.is-featured{border-top:4px solid var(--brand-900);box-shadow:var(--shadow-md)}
.price-tag{position:absolute;top:-13px;right:18px}
.price-card h3{font-size:18px;font-weight:600}
.price-amount{margin-top:14px;display:flex;align-items:baseline;gap:6px}
.price-amount strong{font-size:36px;font-weight:600;color:var(--brand-900);line-height:1}
.price-amount small{font-size:14px;color:var(--ink-muted)}
.price-desc{margin-top:10px;font-size:14px;color:var(--ink-muted)}
.price-list{margin:20px 0 24px;display:grid;gap:10px;flex:1}
.price-list li{position:relative;padding-left:24px;font-size:14px;color:var(--ink)}
.price-list li i{position:absolute;left:0;top:.25em;font-size:13px;color:var(--brand-500)}
.price-list li.is-off{color:#9AA5A1}
.price-list li.is-off i{color:#C6CCC9}
.price-foot{font-size:13px;color:var(--ink-muted);margin-top:16px}

/* 资讯列表 */
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.news-thumb{
  aspect-ratio:16/9;background:linear-gradient(150deg,var(--brand-900),var(--brand-700));
  display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden
}
.news-thumb span{
  font-size:56px;font-weight:700;color:rgba(255,255,255,.16);line-height:1;letter-spacing:.1em
}
.news-thumb i{position:absolute;right:14px;bottom:12px;color:rgba(255,255,255,.35);font-size:15px}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1}
.news-title{margin-top:12px;font-size:17px;font-weight:600;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-sum{margin-top:10px;font-size:14px;line-height:1.8;color:var(--ink-muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.news-meta{margin-top:16px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-muted)}
.news-more{color:var(--brand-700);font-weight:600}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);background:#fff;
  padding:48px 24px;text-align:center
}
.empty-state i{font-size:30px;color:var(--brand-500)}
.empty-state p{margin-top:14px;font-size:15px;color:var(--ink-muted)}
.empty-state .btn{margin-top:20px}

/* FAQ */
.faq-list{border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 4px;font-size:16px;font-weight:600;color:var(--ink);text-align:left;transition:color .18s ease
}
@media (min-width:768px){.faq-q{font-size:17px}}
.faq-q:hover{color:var(--brand-700)}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .25s ease
}
.faq-icon::before,.faq-icon::after{
  content:'';position:absolute;background:var(--accent-500);border-radius:2px
}
.faq-icon::before{left:0;top:10px;width:22px;height:2px}
.faq-icon::after{left:10px;top:0;width:2px;height:22px;transition:transform .25s ease}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-item.is-open .faq-icon::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 4px 20px;font-size:15px;line-height:1.85;color:var(--ink-muted);max-width:820px}

/* CTA */
.cta-band{padding:0 0 8px}
.cta-inner{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:var(--brand-900);color:#fff;padding:36px 24px;text-align:center
}
@media (min-width:768px){.cta-inner{padding:52px 48px}}
.cta-inner::before{
  content:'';position:absolute;inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.06) 0 2px,transparent 2px 9px);
  opacity:.6;pointer-events:none
}
.cta-inner > *{position:relative}
.cta-inner h2{font-size:22px;font-weight:600;line-height:1.4}
@media (min-width:768px){.cta-inner h2{font-size:28px}}
.cta-inner p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.82);max-width:640px;margin-left:auto;margin-right:auto}
.cta-btns{display:flex;gap:12px;justify-content:center;margin-top:26px;flex-wrap:wrap}
.cta-btns .btn{flex:1 1 100%}
@media (min-width:640px){.cta-btns .btn{flex:0 0 auto}}

/* 页脚 */
.site-footer{background:var(--brand-900);color:#E8EDEB;margin-top:56px}
.footer-top{display:grid;gap:28px;grid-template-columns:1fr;padding:44px 0 32px}
@media (min-width:640px){.footer-top{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-top{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding:56px 0 40px}}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .logo-mark{background:rgba(255,255,255,.12)}
.footer-brand span{font-size:16px;font-weight:700;color:#fff}
.footer-about{margin-top:14px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:340px}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col li{margin-bottom:10px}
.footer-col a,.footer-col p{font-size:14px;color:rgba(255,255,255,.72);transition:color .18s ease}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:18px 0 24px;
  display:flex;flex-direction:column;gap:8px;font-size:13px;color:rgba(255,255,255,.6)
}
@media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}

/* 移动底部 Tab */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:grid;grid-template-columns:repeat(5,1fr);
  background:rgba(255,255,255,.94);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom)
}
@media (min-width:1024px){.tabbar{display:none}}
.tabbar a{
  min-height:56px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  font-size:10px;color:var(--ink-muted);position:relative
}
.tabbar a i{font-size:20px;line-height:1}
.tabbar a.is-active{color:var(--brand-700);font-weight:600}
.tabbar a.is-active::before{
  content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;background:var(--accent-500);border-radius:2px
}

/* roulang page: article */
:root{
  --brand-900:#0B3B33;
  --brand-700:#14695A;
  --brand-500:#1F8A73;
  --accent-500:#D4692F;
  --accent-100:#FBEADF;
  --ink:#16201D;
  --ink-muted:#5C6A66;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E4DFD6;
  --warn:#B4802A;
  --ok:#2F7D5D;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(11,59,51,.06);
  --shadow-2:0 10px 28px -12px rgba(11,59,51,.22);
  --font-sans:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:92px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px;}
::selection{background:var(--accent-100);color:var(--brand-900);}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-thumb{background:#CFD8D4;border-radius:99px;border:3px solid transparent;background-clip:content-box;}
::-webkit-scrollbar-thumb:hover{background:#B4C2BD;background-clip:content-box;}

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

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;font-weight:700;font-size:17px;color:var(--brand-900);letter-spacing:-.01em;}
.logo-mark{
  width:34px;height:34px;border-radius:9px;background:var(--brand-900);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;flex:none;
}
.brand-text{white-space:nowrap;}
.main-nav{display:none;}
@media (min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:2px;}
}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;border-radius:8px;
  font-size:15px;color:var(--ink-muted);
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--brand-900);background:var(--paper);}
.nav-link.is-active{color:var(--brand-900);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--accent-500);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:10px;flex:none;}
.menu-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--brand-900);cursor:pointer;transition:background .18s ease;
}
.menu-toggle:hover{background:var(--paper);}
@media (min-width:1024px){.menu-toggle{display:none;}}
@media (max-width:559px){.header-cta{display:none;}}

.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 20px;font-size:15px;color:var(--ink);
  border-bottom:1px solid var(--line);min-height:52px;
}
.mobile-drawer a:last-child{border-bottom:none;}
.mobile-drawer a.is-active{color:var(--brand-700);font-weight:600;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:#C25C26;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-ghost{border-color:var(--brand-700);color:var(--brand-900);background:transparent;}
.btn-ghost:hover{background:rgba(20,105,90,.07);transform:translateY(-1px);}
.btn-outline-light{border-color:rgba(255,255,255,.55);color:#fff;background:transparent;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--brand-900);}
.btn-light:hover{background:var(--accent-100);transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-lg{height:48px;padding:0 26px;font-size:16px;}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;line-height:1.5;letter-spacing:.05em;white-space:nowrap;
}
.badge-brand{background:rgba(11,59,51,.1);color:var(--brand-700);}
.badge-accent{background:var(--accent-100);color:var(--accent-500);}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;border:1px solid var(--line);
  background:#fff;font-size:13px;color:var(--ink-muted);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.tag:hover{border-color:var(--brand-500);color:var(--brand-700);background:rgba(31,138,115,.06);}

/* ---------- 文章头部 ---------- */
.article-hero{background:var(--surface);border-bottom:1px solid var(--line);padding:26px 0 30px;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--ink-muted);margin-bottom:20px;
}
.breadcrumb a{transition:color .18s ease;}
.breadcrumb a:hover{color:var(--brand-700);}
.breadcrumb .sep{color:#C3CBC8;}
.breadcrumb .current{color:var(--ink);max-width:44ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head{max-width:880px;}
.article-title{
  font-size:28px;line-height:1.38;font-weight:700;letter-spacing:-.01em;
  color:var(--brand-900);margin:14px 0 18px;
}
@media (min-width:1024px){
  .article-title{font-size:36px;line-height:1.32;}
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  padding-top:16px;border-top:1px solid var(--line);
  font-size:14px;color:var(--ink-muted);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--brand-500);font-size:13px;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#CBD4D0;display:inline-block;}

/* ---------- 布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:36px;
  padding-top:38px;padding-bottom:64px;
}
@media (min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:52px;}
}

/* ---------- 正文 ---------- */
.article-body{max-width:760px;font-size:17px;line-height:1.95;color:var(--ink);}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  font-size:22px;line-height:1.5;font-weight:600;color:var(--brand-900);
  margin:42px 0 18px;padding-left:12px;border-left:4px solid var(--accent-500);
}
@media (min-width:1024px){.article-body h2{font-size:24px;}}
.article-body h3{font-size:20px;line-height:1.55;font-weight:600;color:var(--brand-900);margin:30px 0 12px;}
.article-body h4{font-size:17px;font-weight:600;color:var(--brand-700);margin:24px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.5em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:.55em;line-height:1.9;}
.article-body img{border-radius:12px;margin:26px auto;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-muted);text-align:center;margin-top:10px;}
.article-body blockquote{
  margin:26px 0;padding:16px 20px;
  background:var(--paper);border-left:4px solid var(--accent-500);
  border-radius:0 12px 12px 0;color:var(--ink-muted);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--accent-500);}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;margin:26px 0;
  display:block;overflow-x:auto;white-space:nowrap;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body thead th{background:var(--paper);color:var(--brand-900);font-weight:600;}
.article-body tbody tr:nth-child(even){background:var(--paper);}
.article-body code{background:var(--paper);padding:2px 6px;border-radius:6px;font-size:15px;}

/* ---------- 文末 ---------- */
.article-foot{margin-top:44px;padding-top:24px;border-top:1px solid var(--line);}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
.article-actions{display:flex;flex-wrap:wrap;gap:12px;}
.share-btn{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 18px;
  border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;
  font-size:14px;font-weight:600;color:var(--brand-900);cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.share-btn:hover{border-color:var(--brand-500);transform:translateY(-1px);box-shadow:var(--shadow-2);}

/* ---------- 侧栏 ---------- */
.article-aside{display:none;}
@media (min-width:1280px){
  .article-aside{display:block;position:sticky;top:96px;align-self:start;}
}
.aside-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow-1);
}
.aside-card + .aside-card{margin-top:20px;}
.aside-card h3{font-size:15px;font-weight:600;color:var(--brand-900);margin-bottom:14px;}
.aside-list{display:flex;flex-direction:column;gap:12px;font-size:14px;color:var(--ink-muted);}
.aside-list a{display:block;line-height:1.7;transition:color .18s ease;}
.aside-list a:hover{color:var(--brand-700);}
.aside-list li{padding-bottom:12px;border-bottom:1px dashed var(--line);}
.aside-list li:last-child{border-bottom:none;padding-bottom:0;}

/* ---------- 相关推荐 ---------- */
.section{padding-top:56px;padding-bottom:56px;}
.section-head{margin-bottom:26px;}
.section-title{
  position:relative;padding-left:12px;border-left:4px solid var(--accent-500);
  font-size:22px;line-height:1.5;font-weight:600;color:var(--brand-900);
}
@media (min-width:1024px){.section-title{font-size:26px;}}
.section-sub{margin-top:10px;font-size:14px;color:var(--ink-muted);}
.card-grid{display:grid;grid-template-columns:1fr;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{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D6D0C4;}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--brand-900);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .28s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{
  font-size:18px;line-height:1.55;font-weight:600;color:var(--brand-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  font-size:14px;line-height:1.8;color:var(--ink-muted);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-muted);
}
.link-more{color:var(--brand-700);font-weight:600;}

/* ---------- 返回入口 ---------- */
.back-links{
  margin-top:28px;display:flex;flex-wrap:wrap;gap:20px;
  font-size:15px;color:var(--brand-700);
}
.back-links a{display:inline-flex;align-items:center;gap:8px;font-weight:600;transition:color .18s ease;}
.back-links a:hover{color:var(--accent-500);}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:56px 24px;background:#fff;
  border:1px dashed var(--line);border-radius:var(--radius-card);
}
.empty-state i{font-size:34px;color:var(--brand-500);margin-bottom:16px;}
.empty-state h2{font-size:20px;font-weight:600;color:var(--brand-900);margin-bottom:10px;}
.empty-state p{font-size:15px;color:var(--ink-muted);max-width:44ch;margin:0 auto 22px;}

/* ---------- CTA ---------- */
.cta-band{position:relative;background:var(--brand-900);color:var(--paper);overflow:hidden;}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:16px 16px;
}
.cta-inner{position:relative;z-index:1;text-align:center;padding:56px 0 60px;}
.cta-inner h2{font-size:24px;line-height:1.5;font-weight:600;color:#fff;}
@media (min-width:1024px){.cta-inner h2{font-size:28px;}}
.cta-inner p{margin-top:14px;font-size:15px;color:rgba(247,244,238,.78);max-width:52ch;margin-left:auto;margin-right:auto;}
.cta-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
@media (max-width:559px){.cta-actions .btn{width:100%;}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#E8EDEA;}
@media (max-width:1023px){
  .site-footer{padding-bottom:calc(70px + env(safe-area-inset-bottom));}
}
.footer-top{display:grid;grid-template-columns:1fr;gap:32px;padding:48px 0 32px;}
@media (min-width:640px){.footer-top{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-top{grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:#fff;margin-bottom:14px;}
.footer-brand .logo-mark{background:rgba(255,255,255,.13);}
.footer-about{font-size:14px;line-height:1.85;color:rgba(232,237,234,.72);max-width:36ch;}
.footer-col h3{font-size:14px;letter-spacing:.06em;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px;font-size:14px;color:rgba(232,237,234,.72);}
.footer-col a{transition:color .18s ease;}
.footer-col a:hover{color:var(--accent-100);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
  padding:18px 0 26px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(232,237,234,.6);
}

/* ---------- 移动端底部 Tab ---------- */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:flex;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(12px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tabbar a{
  position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:4px;min-height:56px;padding:6px 2px;font-size:10px;color:var(--ink-muted);
  transition:color .18s ease;
}
.mobile-tabbar a i{font-size:20px;line-height:1;}
.mobile-tabbar a.is-active{color:var(--brand-700);font-weight:600;}
.mobile-tabbar a.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;background:var(--accent-500);border-radius:2px;
}
@media (min-width:1024px){.mobile-tabbar{display:none;}}

/* roulang page: category1 */
:root{
  --brand-900:#0B3B33;
  --brand-700:#14695A;
  --brand-500:#1F8A73;
  --accent-500:#D4692F;
  --accent-100:#FBEADF;
  --ink:#16201D;
  --ink-muted:#5C6A66;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E4DFD6;
  --warn:#B4802A;
  --ok:#2F7D5D;
  --r-card:16px;
  --r-lg:20px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(11,59,51,.06);
  --sh-2:0 10px 28px -12px rgba(11,59,51,.22);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;}
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{margin:0;font-weight:600;color:var(--brand-900);}
p{margin:0;}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{height:58px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
@media (min-width:1024px){.header-inner{height:70px;}}

.logo{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--brand-900);font-size:16px;line-height:1.2;}
.logo-mark{
  width:36px;height:36px;border-radius:10px;flex:none;
  background:var(--brand-900);color:#fff;
  display:grid;place-items:center;font-size:15px;
}
.logo-text{display:flex;flex-direction:column;}
.logo-text small{font-size:11px;font-weight:400;color:var(--ink-muted);letter-spacing:.05em;}

.main-nav{display:none;}
@media (min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:4px;}
}
.nav-link{
  position:relative;
  padding:9px 13px;border-radius:8px;
  font-size:15px;color:var(--ink-muted);
  transition:color 180ms,background 180ms;
}
.nav-link:hover{color:var(--brand-900);background:rgba(31,138,115,.08);}
.nav-link.is-active{color:var(--brand-900);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;
  height:2px;border-radius:2px;background:var(--accent-500);
}
.header-cta{display:flex;align-items:center;gap:10px;}
.header-cta .btn{height:40px;padding:0 16px;font-size:14px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:transform 180ms,box-shadow 180ms,background 180ms,color 180ms,border-color 180ms;
  white-space:nowrap;
}
.btn-lg{height:48px;padding:0 26px;font-size:16px;}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:#bd5a26;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-outline{border-color:var(--brand-900);color:var(--brand-900);background:transparent;}
.btn-outline:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px);}
.btn-light-outline{border-color:rgba(255,255,255,.55);color:#fff;}
.btn-light-outline:hover{background:#fff;color:var(--brand-900);transform:translateY(-1px);}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12px;letter-spacing:.05em;font-weight:500;
  background:rgba(11,59,51,.08);color:var(--brand-700);
}
.badge-accent{background:var(--accent-100);color:var(--accent-500);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--accent-100);color:var(--accent-500);
  font-size:12px;letter-spacing:.05em;font-weight:600;
}

/* ---------- hero ---------- */
.hero{padding:44px 0 40px;background:var(--paper);}
@media (min-width:1024px){.hero{padding:68px 0 56px;}}
.hero-grid{display:grid;gap:36px;align-items:center;}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.05fr .95fr;gap:52px;}}
.hero h1{
  font-size:28px;line-height:1.32;font-weight:700;letter-spacing:-.01em;
  margin:18px 0 16px;color:var(--brand-900);
}
@media (min-width:1024px){.hero h1{font-size:36px;line-height:1.28;}}
.hero-sub{font-size:16px;color:var(--ink-muted);max-width:560px;}
@media (min-width:1024px){.hero-sub{font-size:17px;}}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:16px 0;
  margin-top:34px;padding-top:22px;border-top:1px solid var(--line);
}
.hero-stat{flex:1 1 50%;min-width:130px;padding-right:18px;}
@media (min-width:768px){
  .hero-stat{border-right:1px solid var(--line);}
  .hero-stat:last-child{border-right:0;}
}
.hero-stat strong{display:block;font-size:24px;font-weight:600;color:var(--brand-700);line-height:1.3;}
.hero-stat span{font-size:12px;letter-spacing:.04em;color:var(--ink-muted);}
.hero-media{position:relative;}
.hero-media::after{
  content:"";position:absolute;left:-14px;bottom:-14px;width:62%;height:62%;
  background:var(--accent-100);border-radius:var(--r-lg);z-index:0;
}
.hero-media img{
  position:relative;z-index:1;width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);box-shadow:var(--sh-2);
}

/* ---------- section base ---------- */
.section{padding:48px 0;}
@media (min-width:768px){.section{padding:64px 0;}}
@media (min-width:1024px){.section{padding:80px 0;}}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-title{
  position:relative;padding-left:16px;
  font-size:22px;line-height:1.3;font-weight:600;color:var(--brand-900);
}
@media (min-width:1024px){.section-title{font-size:28px;line-height:1.32;}}
.section-title::before{
  content:"";position:absolute;left:0;top:.3em;width:4px;height:20px;
  border-radius:2px;background:var(--accent-500);
}
.section-lead{margin-top:14px;color:var(--ink-muted);font-size:15px;max-width:780px;}
@media (min-width:1024px){.section-lead{font-size:16px;}}
.section-head{margin-bottom:30px;}

/* ---------- grid ---------- */
.grid{display:grid;gap:16px;}
@media (min-width:640px){.grid-sm-2{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){
  .grid-3{grid-template-columns:repeat(3,1fr);gap:24px;}
  .grid-lg-2{grid-template-columns:repeat(2,1fr);gap:24px;}
  .grid-4{grid-template-columns:repeat(4,1fr);gap:24px;}
}

/* ---------- quick points ---------- */
.quick-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);
  transition:transform 180ms,box-shadow 180ms;
}
.quick-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.icon-box{
  width:40px;height:40px;border-radius:10px;
  display:grid;place-items:center;font-size:16px;
  background:var(--accent-100);color:var(--accent-500);
  margin-bottom:14px;
}
.quick-card h3{font-size:18px;line-height:1.5;margin-bottom:8px;}
.quick-card p{font-size:14px;line-height:1.8;color:var(--ink-muted);}

/* ---------- steps ---------- */
.steps{counter-reset:step;}
.step{
  position:relative;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 22px 22px;box-shadow:var(--sh-1);
  transition:transform 180ms,box-shadow 180ms;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.step-num{
  width:34px;height:34px;border-radius:999px;
  display:grid;place-items:center;
  background:var(--brand-900);color:#fff;
  font-size:14px;font-weight:600;margin-bottom:14px;
}
.step h3{font-size:18px;line-height:1.5;margin-bottom:8px;}
.step p{font-size:14px;line-height:1.8;color:var(--ink-muted);}
.step-line{
  height:1px;background:var(--line);margin:0 0 24px;
}
.step-tip{
  display:inline-flex;align-items:center;gap:6px;margin-top:12px;
  font-size:13px;color:var(--brand-700);
}

/* ---------- entry cards ---------- */
.entry-card{
  display:flex;gap:18px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:20px;
  box-shadow:var(--sh-1);
  transition:transform 180ms,box-shadow 180ms,border-color 180ms;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6D0C4;}
.entry-thumb{
  flex:none;width:132px;height:96px;border-radius:12px;overflow:hidden;
  background:var(--brand-900);
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;}
.entry-body{min-width:0;display:flex;flex-direction:column;}
.entry-body h3{
  font-size:17px;line-height:1.5;margin:8px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-body p{
  font-size:14px;line-height:1.8;color:var(--ink-muted);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-meta{
  margin-top:12px;display:flex;align-items:center;justify-content:space-between;
  gap:12px;font-size:13px;color:var(--ink-muted);
}
.entry-meta .more{color:var(--brand-700);font-weight:600;white-space:nowrap;}
.entry-card:hover .more{color:var(--accent-500);}
@media (max-width:639px){
  .entry-card{flex-direction:column;gap:14px;}
  .entry-thumb{width:100%;height:168px;}
}

/* ---------- scene ---------- */
.scene{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform 180ms,box-shadow 180ms;
  display:flex;flex-direction:column;
}
.scene:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.scene img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.scene-body{padding:20px 22px 24px;}
.scene-body h3{font-size:18px;line-height:1.5;margin:12px 0 10px;}
.scene-list li{
  position:relative;padding-left:16px;
  font-size:14px;line-height:1.9;color:var(--ink-muted);
}
.scene-list li::before{
  content:"";position:absolute;left:0;top:.78em;
  width:6px;height:6px;border-radius:2px;background:var(--brand-500);
}

/* ---------- table ---------- */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);
  border-radius:var(--r-card);background:var(--surface);
}
table.compare{width:100%;border-collapse:collapse;min-width:680px;}
table.compare th,table.compare td{
  padding:16px 18px;text-align:left;font-size:14px;line-height:1.8;
  border-bottom:1px solid var(--line);vertical-align:top;
}
table.compare thead th{
  background:var(--brand-900);color:#F3F1EA;font-weight:600;font-size:14px;
  border-bottom:0;white-space:nowrap;
}
table.compare tbody tr:nth-child(even){background:var(--paper);}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare td:first-child{font-weight:600;color:var(--brand-900);white-space:nowrap;}
.table-note{margin-top:12px;font-size:13px;color:var(--ink-muted);}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:20px 0;text-align:left;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--brand-900);
}
@media (min-width:1024px){.faq-q{font-size:17px;}}
.faq-icon{
  flex:none;width:24px;height:24px;border-radius:999px;
  display:grid;place-items:center;margin-top:2px;
  background:rgba(11,59,51,.08);color:var(--brand-700);
  font-size:12px;transition:transform 280ms,background 280ms,color 280ms;
}
.faq-item.open .faq-icon{transform:rotate(180deg);background:var(--accent-100);color:var(--accent-500);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms ease;}
.faq-a p{
  padding:0 40px 20px 0;margin:0;
  font-size:15px;line-height:1.85;color:var(--ink-muted);
}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-900);color:#fff;border-radius:var(--r-lg);
  padding:44px 24px;text-align:center;
}
@media (min-width:1024px){.cta-band{padding:56px 48px;}}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px, transparent 1px);
  background-size:16px 16px;opacity:.06;pointer-events:none;
}
.cta-band h2{
  position:relative;color:#fff;font-size:22px;line-height:1.35;padding:0;
}
@media (min-width:1024px){.cta-band h2{font-size:28px;}}
.cta-band p{position:relative;margin:14px auto 26px;max-width:620px;font-size:15px;color:rgba(255,255,255,.82);}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}
@media (max-width:639px){.cta-actions .btn{width:100%;}}

/* ---------- inline links ---------- */
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-700);
  transition:color 180ms,gap 180ms;
}
.text-link:hover{color:var(--accent-500);gap:10px;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--brand-900);color:#EDE8DF;
  padding:52px 0 0;margin-top:56px;
}
.footer-top{display:grid;gap:32px;}
@media (min-width:640px){.footer-top{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-top{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;}
.footer-brand .logo-mark{background:rgba(255,255,255,.12);}
.footer-about{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(237,232,223,.72);max-width:340px;}
.footer-col h3{
  font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;
}
.footer-col ul li + li{margin-top:10px;}
.footer-col a,.footer-col p{
  font-size:14px;line-height:1.7;color:rgba(237,232,223,.72);
  transition:color 180ms;
}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:42px;padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  font-size:13px;color:rgba(237,232,223,.6);
}

/* ---------- mobile tab ---------- */
.mobile-tab{display:none;}
@media (max-width:1023px){
  .mobile-tab{
    display:grid;grid-template-columns:repeat(5,1fr);
    position:fixed;left:0;right:0;bottom:0;z-index:70;
    background:rgba(255,255,255,.95);
    backdrop-filter:blur(10px);
    border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  body{padding-bottom:88px;}
}
.tab-item{
  position:relative;height:58px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10px;color:var(--ink-muted);letter-spacing:.02em;
}
.tab-item i{font-size:18px;}
.tab-item.is-active{color:var(--brand-700);font-weight:600;}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;border-radius:0 0 2px 2px;background:var(--brand-700);
}

/* ---------- misc ---------- */
.divider{height:1px;background:var(--line);margin:0;}
.note-line{font-size:13px;color:var(--ink-muted);}
.list-square li{position:relative;padding-left:16px;font-size:15px;line-height:1.9;color:var(--ink-muted);}
.list-square li::before{
  content:"";position:absolute;left:0;top:.82em;
  width:6px;height:6px;border-radius:2px;background:var(--brand-500);
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B3B33;
  --brand-700:#14695A;
  --brand-500:#1F8A73;
  --accent-500:#D4692F;
  --accent-100:#FBEADF;
  --ink:#16201D;
  --ink-muted:#5C6A66;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E4DFD6;
  --warn:#B4802A;
  --ok:#2F7D5D;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(11,59,51,.06);
  --shadow-md:0 10px 28px -12px rgba(11,59,51,.22);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{list-style:none;padding:0;}
::selection{background:var(--accent-100);color:var(--brand-900);}

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

/* ---------- Header ---------- */
.main-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:68px;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
@media (max-width:1023px){.header-inner{height:58px;}}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--brand-900);letter-spacing:-.01em;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand-900);color:#fff;
  display:grid;place-items:center;font-size:15px;flex:0 0 34px;
}
.logo-text{white-space:nowrap;}
.main-nav{display:none;align-items:center;gap:4px;}
@media (min-width:1024px){.main-nav{display:flex;}}
.nav-link{
  position:relative;padding:9px 12px;font-size:15px;color:var(--ink-muted);border-radius:8px;
  transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--brand-700);background:var(--accent-100);}
.nav-link.is-active{color:var(--brand-900);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--accent-500);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:10px;}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 20px;
  background:var(--accent-500);color:#fff;border-radius:var(--radius-btn);font-weight:600;font-size:15px;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease;
  box-shadow:var(--shadow-sm);white-space:nowrap;
}
.nav-cta:hover{background:#BE5A26;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;color:var(--brand-900);
  font-size:17px;cursor:pointer;
}
@media (min-width:1024px){.nav-toggle{display:none;}}
.nav-toggle:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.main-nav.is-open{
  display:flex;flex-direction:column;align-items:stretch;gap:2px;
  position:absolute;top:100%;left:0;right:0;background:#fff;
  border-bottom:1px solid var(--line);padding:10px 20px 18px;box-shadow:var(--shadow-sm);
}
.main-nav.is-open .nav-link{padding:12px 10px;font-size:16px;}

/* ---------- Mobile Tab ---------- */
.mobile-tabbar{display:none;}
@media (max-width:1023px){
  .mobile-tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;
    background:rgba(255,255,255,.96);backdrop-filter:blur(12px);
    border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .tab-link{
    flex:1;min-height:56px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:10px;color:var(--ink-muted);position:relative;padding:6px 2px;
  }
  .tab-link i{font-size:19px;}
  .tab-link.is-active{color:var(--brand-700);font-weight:600;}
  .tab-link.is-active::before{
    content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
    width:26px;height:2px;background:var(--brand-700);border-radius:2px;
  }
  body{padding-bottom:88px;}
}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:linear-gradient(rgba(11,59,51,.72),rgba(11,59,51,.78)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.hero-inner{padding:38px 0 44px;max-width:820px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.78);margin-bottom:16px;}
.breadcrumb a{color:rgba(255,255,255,.9);border-bottom:1px solid transparent;transition:border-color .18s ease;}
.breadcrumb a:hover{border-bottom-color:rgba(255,255,255,.7);}
.breadcrumb .sep{opacity:.6;}
.breadcrumb .current{color:#fff;font-weight:600;}
.page-hero h1{
  font-size:28px;line-height:1.35;font-weight:700;letter-spacing:-.01em;color:#fff;
}
@media (min-width:768px){.page-hero h1{font-size:36px;line-height:1.25;}}
.hero-sub{margin-top:14px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.86);}
@media (min-width:768px){.hero-sub{font-size:16px;}}
.hero-tags{margin-top:18px;display:flex;flex-wrap:wrap;gap:10px;}
.hero-tags span{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:12px;letter-spacing:.05em;padding:5px 12px;border-radius:999px;
}

/* ---------- Section ---------- */
.section{padding:48px 0;}
@media (min-width:768px){.section{padding:68px 0;}}
@media (min-width:1024px){.section{padding:84px 0;}}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:30px;}
.section-head h2{
  position:relative;padding-left:16px;font-size:22px;line-height:1.45;font-weight:600;color:var(--brand-900);letter-spacing:-.01em;
}
@media (min-width:768px){.section-head h2{font-size:28px;}}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.42em;width:4px;height:20px;background:var(--accent-500);border-radius:2px;
}
.section-head p{margin-top:14px;font-size:15px;color:var(--ink-muted);}
.section-head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:600;font-size:15px;transition:gap .18s ease,color .18s ease;}
.text-link:hover{gap:10px;color:var(--accent-500);}
.text-link:focus-visible{outline:2px solid var(--brand-500);outline-offset:3px;border-radius:4px;}

/* ---------- Intro ---------- */
.intro-grid{display:grid;grid-template-columns:1fr;gap:28px;align-items:start;}
@media (min-width:1024px){.intro-grid{grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:48px;}}
.prose-block p{font-size:16px;line-height:1.9;color:var(--ink);margin-bottom:18px;}
.prose-block p:last-child{margin-bottom:0;}
.prose-block strong{color:var(--brand-900);font-weight:600;}
.point-list{margin-top:22px;display:grid;gap:12px;}
.point-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-muted);line-height:1.8;}
.point-list li i{color:var(--brand-500);font-size:13px;margin-top:8px;}
.intro-media{position:relative;}
.intro-media::before{
  content:"";position:absolute;inset:14px -12px -12px 14px;background:var(--accent-100);border-radius:20px;z-index:0;
}
.intro-media img{position:relative;z-index:1;width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;box-shadow:var(--shadow-sm);}
.intro-media figcaption{margin-top:14px;font-size:13px;color:var(--ink-muted);text-align:center;}

/* ---------- Entry cards ---------- */
.entry-grid{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:640px){.entry-grid{gap:20px;}}
@media (min-width:1024px){.entry-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}}
.entry-card{
  display:flex;gap:16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px;box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#D9D2C6;}
.entry-thumb{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;flex:0 0 auto;}
@media (min-width:640px){
  .entry-card{flex-direction:row;align-items:flex-start;}
  .entry-thumb{width:172px;flex:0 0 172px;aspect-ratio:4/3;}
}
.entry-body{display:flex;flex-direction:column;gap:8px;min-width:0;}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;
  font-size:12px;letter-spacing:.05em;padding:3px 10px;border-radius:999px;
  background:rgba(11,59,51,.08);color:var(--brand-700);font-weight:600;
}
.badge-accent{background:var(--accent-100);color:var(--accent-500);}
.entry-title{font-size:18px;line-height:1.5;font-weight:600;color:var(--brand-900);}
.entry-abs{font-size:14px;line-height:1.8;color:var(--ink-muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.entry-meta{margin-top:auto;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--ink-muted);}

/* ---------- Timeline ---------- */
.timeline{position:relative;max-width:820px;margin:0 auto;padding-left:38px;}
.timeline::before{content:"";position:absolute;left:13px;top:8px;bottom:8px;width:2px;background:var(--line);}
.tl-item{position:relative;padding-bottom:28px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-32px;top:6px;width:12px;height:12px;border-radius:50%;
  background:var(--surface);border:3px solid var(--brand-500);
}
.tl-index{font-size:12px;letter-spacing:.08em;color:var(--accent-500);font-weight:700;}
.tl-title{font-size:18px;font-weight:600;color:var(--brand-900);margin-top:2px;}
.tl-desc{margin-top:6px;font-size:15px;color:var(--ink-muted);}

/* ---------- Checklist ---------- */
.check-grid{display:grid;grid-template-columns:1fr;gap:14px;}
@media (min-width:640px){.check-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}}
.check-item{
  display:flex;gap:12px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow-sm);transition:transform .18s ease,box-shadow .18s ease;
}
.check-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}
.check-icon{
  width:40px;height:40px;flex:0 0 40px;border-radius:10px;background:var(--accent-100);color:var(--accent-500);
  display:grid;place-items:center;font-size:15px;
}
.check-item h3{font-size:17px;font-weight:600;color:var(--brand-900);line-height:1.5;}
.check-item p{margin-top:6px;font-size:14px;line-height:1.8;color:var(--ink-muted);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;background:var(--brand-900);color:#fff;
  padding:44px 24px;text-align:center;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:16px 16px;opacity:.06;
}
.cta-inner{position:relative;z-index:1;max-width:720px;margin:0 auto;}
.cta-band h2{font-size:24px;font-weight:600;line-height:1.45;}
@media (min-width:768px){.cta-band h2{font-size:28px;}}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.82);line-height:1.85;}
.cta-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:#BE5A26;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-ghost{border-color:var(--brand-900);color:var(--brand-900);background:transparent;}
.btn-ghost:hover{background:rgba(11,59,51,.06);transform:translateY(-1px);}
.btn-light{border-color:rgba(255,255,255,.7);color:#fff;background:transparent;}
.btn-light:hover{background:rgba(255,255,255,.12);transform:translateY(-1px);}
@media (max-width:639px){
  .cta-actions .btn{width:100%;}
}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-900);color:#EFEAE1;margin-top:0;}
.footer-top{
  display:grid;grid-template-columns:1fr;gap:32px;padding:52px 0 36px;
}
@media (min-width:768px){.footer-top{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-top{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px;}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;}
.footer-brand .logo-mark{background:rgba(255,255,255,.14);}
.footer-about{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(239,234,225,.72);max-width:360px;}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:rgba(239,234,225,.75);transition:color .18s ease;}
.footer-col a:hover{color:#fff;}
.footer-col p{font-size:14px;color:rgba(239,234,225,.75);line-height:1.8;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;font-size:13px;color:rgba(239,234,225,.62);
}
@media (max-width:1023px){
  .footer-bottom{padding-bottom:36px;}
}