/* roulang page: index */
:root{
  --paper:#F7F3EC;
  --paper-2:#FFFFFF;
  --ink:#1A1614;
  --ink-2:#5C534C;
  --line:#E4DBD0;
  --brand:#A83B2A;
  --brand-dark:#8A2E20;
  --brand-10:rgba(168,59,42,.10);
  --deep:#12362E;
  --brass:#C08A3E;
  --success:#2F6B4F;
  --error:#B4362B;
  --font-display:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --r-card:14px;
  --r-btn:10px;
  --r-data:20px;
  --shadow-1:0 1px 2px rgba(26,22,20,.04),0 8px 24px -12px rgba(26,22,20,.14);
  --shadow-2:0 14px 34px -14px rgba(26,22,20,.22);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
html body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.88;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0;}
::selection{background:var(--brand-10);}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.prose{max-width:760px;}

/* ---------- 标题体系 ---------- */
.font-display{font-family:var(--font-display);}
.h1{font-family:var(--font-display);font-size:clamp(2.1rem,4.4vw,3.4rem);line-height:1.25;letter-spacing:.01em;font-weight:600;margin:0;}
.h2{font-family:var(--font-display);font-size:clamp(1.6rem,2.6vw,2.2rem);line-height:1.3;letter-spacing:.01em;font-weight:600;margin:0;}
.h3{font-family:var(--font-display);font-size:1.25rem;line-height:1.35;letter-spacing:.01em;font-weight:600;margin:0;}
.card-title{font-family:var(--font-display);font-size:18px;line-height:1.4;font-weight:600;margin:0;}
.lead{color:var(--ink-2);font-size:17px;line-height:1.88;}
.meta{font-size:13px;color:var(--ink-2);line-height:1.7;}
.note{font-size:12px;color:var(--ink-2);line-height:1.7;}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--paper);}
.brand-bar{border-bottom:1px solid var(--line);background:var(--paper);transition:height .25s ease,box-shadow .25s ease;height:64px;}
.site-header.compact .brand-bar{height:52px;box-shadow:var(--shadow-1);}
.brand-inner{display:flex;align-items:center;height:100%;gap:24px;}
.logo{display:inline-flex;align-items:center;gap:9px;font-family:var(--font-display);font-size:20px;font-weight:700;letter-spacing:.02em;color:var(--ink);white-space:nowrap;}
.logo-mark{width:9px;height:9px;border-radius:999px;background:var(--brand);flex:0 0 9px;}
.brand-links{display:flex;align-items:center;gap:22px;margin-left:10px;}
.brand-links a{font-size:12px;letter-spacing:.05em;color:var(--ink-2);transition:color .2s ease;}
.brand-links a:hover{color:var(--brand);}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.hamburger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:transparent;cursor:pointer;align-items:center;justify-content:center;}
.hamburger span{display:block;width:18px;height:1.5px;background:var(--ink);position:relative;}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--ink);}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
.hamburger:focus-visible{outline:2px solid var(--brass);outline-offset:2px;}

.channel-bar{border-bottom:1px solid var(--line);background:var(--paper);}
.channel-inner{display:flex;align-items:center;height:48px;overflow-x:auto;scrollbar-width:none;gap:2px;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{display:inline-block;font-size:14px;padding:8px 18px;color:var(--ink-2);border-bottom:2px solid transparent;white-space:nowrap;transition:color .2s ease,border-color .2s ease;}
.channel-link:hover{color:var(--brand);border-bottom-color:var(--brand);}
.channel-link.active{color:var(--brand);border-bottom-color:var(--brand);font-weight:500;}
.channel-link:focus-visible{outline:2px solid var(--brass);outline-offset:-4px;}

/* 移动端抽屉 */
.nav-drawer{position:fixed;inset:0;z-index:200;background:var(--paper);padding:24px 20px 40px;display:none;flex-direction:column;opacity:0;transition:opacity .22s ease;}
.nav-drawer.open{display:flex;opacity:1;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line);}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:transparent;font-size:20px;line-height:1;cursor:pointer;color:var(--ink);}
.drawer-close:focus-visible{outline:2px solid var(--brass);outline-offset:2px;}
.drawer-nav{margin-top:28px;display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{font-family:var(--font-display);font-size:26px;padding:14px 0;border-bottom:1px solid var(--line);color:var(--ink);}
.drawer-nav a.active{color:var(--brand);}
.drawer-cta{margin-top:28px;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:500;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .15s ease,box-shadow .2s ease;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-block{width:100%;}
.btn:focus-visible{outline:2px solid var(--brass);outline-offset:2px;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--brand);transition:color .2s ease;}
.text-link svg{transition:transform .2s ease;}
.text-link:hover{color:var(--brand-dark);}
.text-link:hover svg{transform:translateX(3px);}
.text-link:focus-visible{outline:2px solid var(--brass);outline-offset:3px;border-radius:4px;}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.section-head p{color:var(--ink-2);font-size:15px;margin-top:10px;max-width:640px;}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.1em;color:var(--brass);text-transform:uppercase;}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brass);}

/* ---------- Hero ---------- */
.hero{position:relative;padding:72px 0 64px;background-image:repeating-linear-gradient(90deg,rgba(26,22,20,.04) 0 1px,transparent 1px 140px);}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:center;min-height:78vh;}
.hero h1{margin:20px 0 18px;}
.hero-sub{font-size:17px;color:var(--ink-2);line-height:1.85;}
.hero-trust{display:flex;flex-direction:column;gap:8px;margin-top:22px;}
.hero-trust span{display:inline-flex;align-items:center;gap:9px;font-size:12px;color:var(--ink-2);letter-spacing:.02em;}
.hero-trust span::before{content:"";width:6px;height:6px;border-radius:999px;background:var(--brass);flex:0 0 6px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-media{position:relative;}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--line);}
.corner-badge{position:absolute;top:-13px;right:16px;background:var(--brass);color:#fff;font-size:12px;letter-spacing:.08em;padding:6px 14px;border-radius:999px;}
.hero-nums{display:flex;flex-wrap:wrap;gap:26px;margin-top:18px;font-size:12px;color:var(--ink-2);letter-spacing:.06em;}
.hero-nums b{color:var(--brass);font-weight:600;margin-right:6px;font-family:var(--font-body);}

/* ---------- 痛点区 ---------- */
.pain-wrap{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;align-items:start;}
.pain-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.pain-col{display:flex;flex-direction:column;gap:24px;}
.pain-col.offset{margin-top:24px;}
.pain-card{position:relative;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;transition:border-color .2s ease,box-shadow .2s ease;overflow:hidden;}
.pain-card::before{content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;background:var(--brand);border-radius:0 3px 3px 0;opacity:0;transition:opacity .2s ease;}
.pain-card:hover{border-color:var(--brand);box-shadow:var(--shadow-1);}
.pain-card:hover::before{opacity:1;}
.pain-num{font-size:13px;letter-spacing:.1em;color:var(--brass);font-family:var(--font-body);}
.pain-card .card-title{margin:12px 0 10px;}
.pain-card p{font-size:14px;line-height:1.75;color:var(--ink-2);}

/* ---------- 方案长条卡 ---------- */
.solution-list{display:flex;flex-direction:column;gap:16px;}
.solution-card{display:flex;gap:22px;align-items:flex-start;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;min-height:120px;transition:border-color .2s ease,box-shadow .2s ease;}
.solution-card:hover{border-color:var(--brand);box-shadow:var(--shadow-2);}
.solution-icon{flex:0 0 44px;width:44px;height:44px;border-radius:var(--r-btn);background:rgba(18,54,46,.10);color:var(--deep);display:flex;align-items:center;justify-content:center;}
.solution-body{flex:1 1 auto;min-width:0;}
.solution-body .card-title{margin-bottom:8px;}
.solution-body p{font-size:14px;line-height:1.75;color:var(--ink-2);max-width:640px;}
.solution-body .text-link{margin-top:12px;}

/* ---------- 数据带 ---------- */
.stats-band{background:var(--deep);color:var(--paper);border-radius:var(--r-data);padding:56px 48px;box-shadow:var(--shadow-1);}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));}
.stat{padding:0 26px;border-left:1px solid rgba(255,255,255,.16);}
.stat:first-child{border-left:0;padding-left:0;}
.stat-value{display:flex;align-items:baseline;gap:6px;font-size:clamp(2rem,4vw,3rem);line-height:1.1;font-weight:600;letter-spacing:-.01em;color:#fff;}
.stat-value em{font-style:normal;font-size:14px;font-weight:400;color:rgba(247,243,236,.7);letter-spacing:.06em;}
.stat-label{margin-top:10px;font-size:12px;color:rgba(247,243,236,.68);letter-spacing:.06em;line-height:1.7;}

/* ---------- 中段 CTA ---------- */
.mid-cta{padding:0 0 8px;}
.mid-cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);padding:30px 32px;box-shadow:var(--shadow-1);}
.mid-cta-inner h2{font-size:1.25rem;}

/* ---------- 最新信息 ---------- */
.news-layout{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:32px;align-items:start;}
.news-lead{display:block;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);transition:border-color .2s ease,box-shadow .2s ease;}
.news-lead:hover{border-color:var(--brand);box-shadow:var(--shadow-2);}
.news-lead img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.news-lead-body{padding:24px;}
.news-lead-body .card-title{font-size:20px;margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-lead-body p{font-size:14px;line-height:1.75;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-lead-body time{display:block;margin-top:14px;font-size:13px;color:var(--ink-2);}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:13px;line-height:1;}
.badge-cat{background:rgba(18,54,46,.08);color:var(--deep);}
.badge-time{background:var(--paper);color:var(--ink-2);border:1px solid var(--line);}
.news-list li{border-bottom:1px solid var(--line);}
.news-list li:first-child{border-top:1px solid var(--line);}
.news-list a{display:block;padding:18px 4px;transition:background .2s ease,box-shadow .2s ease;}
.news-list a:hover{background:var(--paper-2);box-shadow:inset 3px 0 0 var(--brand);}
.news-list h4{font-family:var(--font-display);font-size:17px;line-height:1.45;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:color .2s ease;}
.news-list a:hover h4{color:var(--brand);}
.news-list .meta{margin-top:6px;}
.news-list p{font-size:13px;line-height:1.7;color:var(--ink-2);margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;min-height:320px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--paper-2);color:var(--ink-2);font-size:14px;}

/* ---------- FAQ ---------- */
.faq-block{border:1px solid var(--line);border-radius:var(--r-card);background:var(--paper-2);overflow:hidden;max-width:900px;}
.faq-item+.faq-item{border-top:1px solid var(--line);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;background:transparent;border:0;text-align:left;font-size:17px;font-family:var(--font-display);color:var(--ink);cursor:pointer;}
.faq-q:focus-visible{outline:2px solid var(--brass);outline-offset:-3px;}
.faq-icon{flex:0 0 20px;color:var(--brass);font-size:20px;line-height:1;transition:transform .2s ease;}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;}
.faq-a p{padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--ink-2);}

/* ---------- 表单 ---------- */
.form-panel{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);padding:32px;box-shadow:var(--shadow-1);max-width:720px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:8px;}
.field input,.field textarea{width:100%;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-btn);padding:0 16px;height:48px;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;}
.field textarea{height:124px;padding:12px 16px;line-height:1.75;resize:vertical;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px var(--brand-10);}
.field.has-error input,.field.has-error textarea{border-color:var(--error);}
.field-error{display:none;margin-top:6px;font-size:12px;color:var(--error);}
.field.has-error .field-error{display:block;}
.privacy-note{margin-top:20px;font-size:12px;line-height:1.7;color:var(--ink-2);}
.privacy-note a{color:var(--brand);}

/* ---------- 频道直达条 ---------- */
.channel-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--paper-2);padding:18px 0;}
.channel-strip-inner{display:flex;flex-wrap:wrap;align-items:center;gap:10px 26px;}
.channel-strip-inner .strip-label{font-size:12px;letter-spacing:.08em;color:var(--brass);}
.channel-strip-inner a{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--ink);transition:color .2s ease;}
.channel-strip-inner a:hover{color:var(--brand);}
.channel-strip-inner a svg{transition:transform .2s ease;}
.channel-strip-inner a:hover svg{transform:translateX(3px);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:var(--paper);padding-top:72px;}
.footer-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.2fr);gap:40px;}
.footer-brand .logo{color:var(--paper);font-size:20px;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(247,243,236,.7);max-width:340px;}
.footer-col h4{font-family:var(--font-body);font-size:14px;font-weight:600;letter-spacing:.08em;border-top:1px solid var(--brass);padding-top:14px;margin:0 0 16px;color:var(--paper);}
.footer-col a{display:block;font-size:14px;color:rgba(247,243,236,.72);padding:6px 0;transition:color .2s ease;}
.footer-col a:hover{color:#fff;}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(247,243,236,.7);}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(247,243,236,.6);}

/* ---------- 弹层 ---------- */
.modal-overlay{position:fixed;inset:0;z-index:300;display:none;align-items:center;justify-content:center;padding:20px;background:rgba(26,22,20,.5);backdrop-filter:blur(6px);}
.modal-overlay.open{display:flex;}
.modal-panel{position:relative;width:480px;max-width:100%;background:var(--paper);border-radius:var(--r-data);padding:32px;box-shadow:var(--shadow-2);max-height:90vh;overflow-y:auto;}
.modal-close{position:absolute;top:16px;right:16px;width:38px;height:38px;border-radius:var(--r-btn);border:1px solid var(--line);background:transparent;font-size:20px;line-height:1;cursor:pointer;color:var(--ink);}
.modal-close:hover{border-color:var(--brand);color:var(--brand);}
.modal-close:focus-visible{outline:2px solid var(--brass);outline-offset:2px;}
.modal-panel h3{margin-bottom:10px;}
.modal-panel .lead{font-size:14px;margin-bottom:22px;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px;min-height:0;}
  .hero-media{order:-1;}
  .pain-wrap{grid-template-columns:1fr;gap:32px;}
  .news-layout{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:1fr 1fr;gap:36px 0;}
  .stat{padding:0 24px;}
  .stat:nth-child(odd){border-left:0;padding-left:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .brand-links{display:none;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .hero{padding:40px 0 44px;}
  .solution-card{flex-direction:row;}
  .stats-band{padding:40px 24px;}
  .mid-cta-inner{padding:24px;}
}
@media (max-width:640px){
  html body{font-size:16px;}
  .hamburger{display:inline-flex;}
  .brand-actions .btn-primary{display:none;}
  .pain-grid{grid-template-columns:1fr;}
  .pain-col.offset{margin-top:0;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .hero-cta .btn{width:100%;}
  .modal-overlay{align-items:flex-end;padding:0;}
  .modal-panel{width:100%;border-radius:20px 20px 0 0;padding:26px 20px 32px;max-height:92vh;}
  .form-panel{padding:24px 20px;}
  .stats-grid{grid-template-columns:1fr 1fr;}
  .solution-card{padding:22px;}
}

/* roulang page: category1 */
:root{
  --paper:#F7F3EC;
  --paper-2:#FFFFFF;
  --ink:#1A1614;
  --ink-2:#5C534C;
  --line:#E4DBD0;
  --brand:#A83B2A;
  --brand-dark:#8A2E20;
  --brand-10:rgba(168,59,42,.10);
  --deep:#12362E;
  --brass:#C08A3E;
  --ok:#2F6B4F;
  --warn:#C08A3E;
  --err:#B4362B;
  --font-display:"Noto Serif SC","Songti SC","Source Han Serif SC",serif;
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --shadow-1:0 1px 2px rgba(26,22,20,.04),0 8px 24px -12px rgba(26,22,20,.14);
  --shadow-2:0 14px 34px -14px rgba(26,22,20,.22);
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--font-body);font-size:17px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--font-display);line-height:1.25;letter-spacing:.01em;font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brass);outline-offset:2px}

.container{max-width:1200px;margin:0 auto;padding:0 20px}
.prose{max-width:760px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--paper)}
.brand-row{
  height:64px;display:flex;align-items:center;gap:24px;
  border-bottom:1px solid var(--line);transition:height .25s ease,box-shadow .25s ease;
}
.brand-row.is-compact{height:52px;box-shadow:var(--shadow-1)}
.brand-row .container{display:flex;align-items:center;gap:24px;width:100%}
.logo{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-display);font-size:19px;letter-spacing:.01em;white-space:nowrap}
.logo-mark{width:10px;height:10px;border-radius:2px;background:var(--brand);display:inline-block;flex:none}
.brand-links{display:flex;align-items:center;gap:22px;margin-left:8px}
.brand-links a{font-size:12px;letter-spacing:.06em;color:var(--ink-2);transition:color .2s}
.brand-links a:hover{color:var(--brand)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:500;cursor:pointer;transition:all .2s ease;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

.burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:transparent;align-items:center;justify-content:center;cursor:pointer;
}
.burger span{display:block;width:18px;height:1.6px;background:var(--ink);position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:1.6px;background:var(--ink)}
.burger span::before{top:-6px}
.burger span::after{top:6px}

.channel-row{border-bottom:1px solid var(--line);background:var(--paper)}
.channel-row .container{display:flex;align-items:center;height:48px;gap:2px;overflow-x:auto;scrollbar-width:none}
.channel-row .container::-webkit-scrollbar{display:none}
.channel-link{
  font-size:14px;padding:8px 18px;color:var(--ink-2);border-bottom:2px solid transparent;
  white-space:nowrap;transition:color .2s,border-color .2s;
}
.channel-link:hover{color:var(--brand);border-bottom-color:var(--brand)}
.channel-link.is-active{color:var(--brand);border-bottom-color:var(--brand)}

.drawer{
  position:fixed;inset:0;background:var(--paper);z-index:90;display:none;
  padding:28px 24px;overflow-y:auto;
}
.drawer.is-open{display:block}
.drawer-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:16px}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:transparent;font-size:20px;line-height:1;cursor:pointer}
.drawer-nav{margin-top:28px;display:flex;flex-direction:column}
.drawer-nav a{font-family:var(--font-display);font-size:26px;padding:14px 0;border-bottom:1px solid var(--line)}
.drawer-nav a.is-active{color:var(--brand)}

/* ---------- breadcrumb ---------- */
.crumb{padding:22px 0 0;font-size:14px;color:var(--ink-2);display:flex;gap:8px;flex-wrap:wrap}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--line)}
.crumb .cur{color:var(--ink);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- hero band ---------- */
.page-hero{padding:22px 0 0}
.hero-band{
  position:relative;border-radius:var(--r-card);overflow:hidden;min-height:268px;
  display:flex;align-items:flex-end;border:1px solid var(--line);
  background:
    linear-gradient(90deg,rgba(18,54,46,.94) 0%,rgba(18,54,46,.72) 42%,rgba(18,54,46,.20) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat,
    var(--deep);
}
.hero-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 96px);
  opacity:.6;
}
.hero-inner{position:relative;z-index:2;padding:36px 34px 34px;max-width:760px;color:#fff}
.hero-tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);color:#fff;font-size:13px;letter-spacing:.06em;margin-bottom:16px;
}
.hero-inner h1{font-size:clamp(2.1rem,4.4vw,3.4rem);color:#fff}
.hero-sub{margin-top:14px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.86);max-width:640px}
.hero-meta{margin-top:16px;font-size:13px;color:rgba(255,255,255,.68);letter-spacing:.04em}

/* ---------- section ---------- */
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-head h2{font-size:clamp(1.6rem,2.6vw,2.2rem);max-width:640px}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:16px;max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;
  color:var(--brass);text-transform:none;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brass)}

/* ---------- lead cards ---------- */
.lead-grid{display:grid;grid-template-columns:1fr;gap:24px}
.lead-main{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);transition:border-color .2s,box-shadow .2s;
}
.lead-main:hover{border-color:var(--brand);box-shadow:var(--shadow-2)}
.lead-main img{width:100%;aspect-ratio:16/9;object-fit:cover}
.lead-body{padding:28px}
.lead-body h3{font-size:22px;margin-bottom:12px}
.lead-body p{color:var(--ink-2);font-size:15px;line-height:1.8}
.lead-side{display:grid;gap:24px;align-content:start}
.mini-card{
  display:grid;grid-template-columns:120px 1fr;gap:18px;align-items:center;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px;box-shadow:var(--shadow-1);transition:border-color .2s,box-shadow .2s;
}
.mini-card:hover{border-color:var(--brand);box-shadow:var(--shadow-2)}
.mini-card img{width:120px;aspect-ratio:16/11;object-fit:cover;border-radius:10px}
.mini-card h3{font-size:18px;margin-bottom:6px}
.mini-card p{font-size:14px;line-height:1.75;color:var(--ink-2)}

.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;background:rgba(18,54,46,.08);color:var(--deep);
}
.tag-time{background:var(--paper);color:var(--ink-2);border:1px solid var(--line)}
.tag-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}

.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:500;margin-top:16px}
.link-arrow svg{transition:transform .2s}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- deep data band ---------- */
.data-band{background:var(--deep);border-radius:20px;color:var(--paper);padding:44px 34px;margin:0 20px}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.data-cell{padding:6px 24px;border-left:1px solid rgba(255,255,255,.16)}
.data-cell:first-child{border-left:none;padding-left:0}
.data-num{font-family:var(--font-body);font-size:clamp(2rem,4vw,3rem);line-height:1;font-weight:600;letter-spacing:-.01em}
.data-num span{font-size:15px;font-weight:400;margin-left:6px;color:rgba(247,243,236,.7)}
.data-label{margin-top:12px;font-size:12px;letter-spacing:.08em;color:rgba(247,243,236,.72)}

/* ---------- feature rows ---------- */
.row-list{display:grid;gap:16px}
.feature-row{
  display:grid;grid-template-columns:44px 1fr;gap:20px;align-items:start;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;min-height:120px;box-shadow:var(--shadow-1);transition:border-color .2s,box-shadow .2s;
}
.feature-row:hover{border-color:var(--brand);box-shadow:var(--shadow-2)}
.icon-box{
  width:44px;height:44px;border-radius:12px;background:rgba(18,54,46,.10);
  display:flex;align-items:center;justify-content:center;color:var(--deep);
}
.icon-box svg{width:22px;height:22px;stroke:var(--deep);stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round}
.feature-row h3{font-size:18px;margin-bottom:8px}
.feature-row p{font-size:15px;color:var(--ink-2);line-height:1.8}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{
  border-top:1px solid var(--line);padding-top:20px;position:relative;
}
.step .num{font-family:var(--font-display);color:var(--brass);font-size:14px;letter-spacing:.08em}
.step h3{font-size:18px;margin:12px 0 8px}
.step p{font-size:14px;color:var(--ink-2);line-height:1.8}

/* ---------- scenario ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--paper-2)}
.scene{padding:28px;border-bottom:1px solid var(--line);border-right:1px solid var(--line)}
.scene:nth-child(2n){border-right:none}
.scene:nth-last-child(-n+2){border-bottom:none}
.scene h3{font-size:18px;margin-bottom:10px;display:flex;align-items:center;gap:10px}
.scene h3 .dot{width:8px;height:8px;border-radius:50%;background:var(--brass);flex:none}
.scene p{font-size:15px;color:var(--ink-2);line-height:1.8}

/* ---------- faq ---------- */
.faq-list{border:1px solid var(--line);border-radius:var(--r-card);background:var(--paper-2);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:none}
.faq-item summary{
  list-style:none;cursor:pointer;padding:22px 26px;font-size:17px;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:18px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-icon{position:relative;width:16px;height:16px;flex:none}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);transition:transform .2s ease}
.faq-icon::before{left:0;top:7.2px;width:16px;height:1.6px}
.faq-icon::after{left:7.2px;top:0;width:1.6px;height:16px}
.faq-item[open] .faq-icon::after{transform:scaleY(0)}
.faq-body{padding:0 26px 24px;font-size:15px;line-height:1.8;color:var(--ink-2);max-width:760px}

/* ---------- form ---------- */
.support-wrap{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--shadow-1);
}
.field{margin-bottom:20px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:8px}
.field input,.field textarea{
  width:100%;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 16px;height:48px;transition:border-color .2s,box-shadow .2s;
}
.field textarea{height:auto;min-height:120px;padding:12px 16px;line-height:1.7;resize:vertical}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 2px var(--brand-10);
}
.privacy{
  margin-top:16px;font-size:12px;color:var(--ink-2);line-height:1.7;
}
.privacy a{color:var(--brand);text-decoration:underline;text-underline-offset:2px}

/* ---------- CTA band ---------- */
.cta-band{background:var(--deep);border-radius:20px;color:var(--paper);padding:40px 34px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(1.4rem,2.2vw,1.8rem);color:#fff}
.cta-band p{margin-top:10px;font-size:14px;color:rgba(247,243,236,.76)}
.cta-band .btn-primary{background:var(--brand);color:#fff}
.back-home{display:inline-flex;align-items:center;gap:6px;color:rgba(247,243,236,.8);font-size:14px;margin-top:18px}
.back-home:hover{color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--deep);color:var(--paper);margin-top:96px;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{color:var(--paper);font-size:20px}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(247,243,236,.72);max-width:340px}
.footer-col h4{font-size:14px;letter-spacing:.08em;color:var(--paper);border-top:1px solid var(--brass);padding-top:14px;margin-bottom:16px;font-family:var(--font-body);font-weight:600}
.footer-col a{display:block;font-size:14px;color:rgba(247,243,236,.76);padding:7px 0;transition:color .2s}
.footer-col a:hover{color:var(--brass)}
.footer-col p{font-size:14px;color:rgba(247,243,236,.76);line-height:1.8}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.14);padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,243,236,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .brand-links{display:none}
  .burger{display:flex}
  .data-grid{grid-template-columns:repeat(2,1fr);row-gap:28px}
  .data-cell{border-left:none;padding:0}
  .data-cell:nth-child(2n){border-left:1px solid rgba(255,255,255,.16);padding-left:24px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (min-width:768px){
  .lead-grid{grid-template-columns:7fr 5fr}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .hero-inner{padding:28px 22px}
  .lead-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .scene{border-right:none}
  .scene:nth-last-child(-n+2){border-bottom:1px solid var(--line)}
  .scene:last-child{border-bottom:none}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .site-footer{margin-top:56px;padding-top:48px}
  .cta-band{padding:28px 22px}
  .support-wrap{padding:24px}
  .data-band{margin:0 12px;padding:32px 22px}
}
@media (max-width:520px){
  body{font-size:16px}
  .brand-row{height:60px}
  .mini-card{grid-template-columns:96px 1fr;gap:14px}
  .mini-card img{width:96px}
  .steps{grid-template-columns:1fr}
  .header-actions .btn-primary{display:none}
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-band .btn{width:100%}
}

/* roulang page: article */
:root{
  --paper:#F7F3EC; --paper-2:#FFFFFF; --ink:#1A1614; --ink-2:#5C534C;
  --line:#E4DBD0; --brand:#A83B2A; --brand-dark:#8A2E20; --brand-10:rgba(168,59,42,.10);
  --deep:#12362E; --brass:#C08A3E;
  --ok:#2F6B4F; --warn:#C08A3E; --err:#B4362B;
  --font-display:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --shadow-1:0 1px 2px rgba(26,22,20,.04),0 8px 24px -12px rgba(26,22,20,.14);
  --shadow-2:0 14px 34px -14px rgba(26,22,20,.22);
  --r-card:14px; --r-btn:10px; --r-pill:999px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--font-body);font-size:17px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
  background-image:repeating-linear-gradient(90deg,rgba(26,22,20,.025) 0 1px,transparent 1px 128px);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--brass);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--paper);}
.topbar{height:64px;border-bottom:1px solid var(--line);transition:height .25s ease,box-shadow .25s ease;}
.topbar.shrink{height:52px;box-shadow:var(--shadow-1);}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:100%;}
.logo{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-display);font-size:20px;font-weight:700;letter-spacing:.01em;color:var(--ink);white-space:nowrap;}
.logo-mark{position:relative;width:22px;height:22px;border-radius:6px;background:var(--brand);flex:0 0 auto;}
.logo-mark::after{content:"";position:absolute;inset:6px;border:1.5px solid var(--brass);border-radius:2px;}
.brand-links{display:flex;align-items:center;gap:22px;}
.brand-links a{font-size:12px;letter-spacing:.05em;color:var(--ink-2);transition:color .2s;}
.brand-links a:hover{color:var(--brand);}
.topbar-actions{display:flex;align-items:center;gap:12px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.hamburger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:var(--paper-2);padding:0;cursor:pointer;position:relative;}
.hamburger span{position:absolute;left:12px;right:12px;height:1.6px;background:var(--ink);border-radius:2px;transition:transform .22s ease,opacity .22s ease;}
.hamburger span:nth-child(1){top:15px;}
.hamburger span:nth-child(2){top:21px;}
.hamburger span:nth-child(3){top:27px;}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.channel-row{height:48px;border-bottom:1px solid var(--line);background:var(--paper);}
.channel-inner{display:flex;align-items:stretch;height:48px;gap:2px;overflow-x:auto;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-inner a{display:inline-flex;align-items:center;padding:8px 18px;font-size:14px;color:var(--ink-2);white-space:nowrap;border-bottom:2px solid transparent;transition:color .2s,border-color .2s;}
.channel-inner a:hover{color:var(--brand);border-bottom-color:var(--brand);}
.channel-inner a.active{color:var(--brand);border-bottom-color:var(--brand);font-weight:600;}
.drawer{position:fixed;inset:0;background:var(--paper);z-index:120;transform:translateY(-100%);transition:transform .3s ease;padding:28px 20px;overflow-y:auto;}
.drawer.open{transform:translateY(0);}
.drawer-close{position:absolute;top:20px;right:20px;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:var(--paper-2);font-size:20px;line-height:1;color:var(--ink);cursor:pointer;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-top:64px;}
.drawer-nav a{font-family:var(--font-display);font-size:26px;line-height:1.5;color:var(--ink);padding:12px 0;border-bottom:1px solid var(--line);}
.drawer-nav a:hover{color:var(--brand);}

/* ---------- 面包屑与文章头 ---------- */
.crumbs{padding:26px 0 6px;font-size:14px;color:var(--ink-2);display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumbs a{color:var(--ink-2);transition:color .2s;}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--line);}
.crumbs .current{color:var(--ink);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head{max-width:860px;margin:0 auto;padding:22px 0 8px;}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:13px;background:rgba(18,54,46,.08);color:var(--deep);}
.article-head h1{font-family:var(--font-display);font-size:clamp(2.1rem,4.4vw,3.4rem);line-height:1.25;letter-spacing:.01em;margin:20px 0 18px;font-weight:700;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--ink-2);}
.article-meta .dot{color:var(--brass);}
.article-lede{max-width:860px;margin:8px auto 0;font-size:18px;line-height:1.8;color:var(--ink-2);border-left:3px solid var(--brand);padding:4px 0 4px 16px;}

/* ---------- 正文布局 ---------- */
.article-section{padding:28px 0 96px;}
.article-layout{display:grid;grid-template-columns:760px 240px;gap:64px;justify-content:center;align-items:start;}
.article-body{min-width:0;font-size:17px;line-height:1.9;}
.article-body p{margin:0 0 1.4em;}
.article-body h2{font-family:var(--font-display);font-size:clamp(1.4rem,2vw,1.75rem);line-height:1.35;margin:2.2em 0 .8em;padding-left:14px;border-left:3px solid var(--brand);font-weight:700;}
.article-body h3{font-size:1.15rem;font-weight:700;line-height:1.5;margin:1.8em 0 .6em;}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.4em;}
.article-body li{margin:.5em 0;line-height:1.85;}
.article-body blockquote{margin:1.6em 0;padding:16px 22px;background:var(--paper);border-left:4px solid var(--brass);color:var(--ink-2);border-radius:0 var(--r-card) var(--r-card) 0;}
.article-body img{border-radius:var(--r-card);margin:1.8em auto;}
.article-body figure{margin:1.8em 0;}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;}
.article-body thead th{background:var(--paper);text-align:left;font-weight:600;padding:12px 14px;border-bottom:1px solid var(--line);}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);}
.article-body pre{background:var(--deep);color:#F2EFE9;border-radius:12px;padding:20px;overflow-x:auto;font-size:14px;line-height:1.7;margin:1.6em 0;}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em;}
.article-body p code,.article-body li code{background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:1px 6px;}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-dark);}
.empty-box{border:1px solid var(--line);background:var(--paper-2);border-radius:var(--r-card);padding:56px 32px;text-align:center;box-shadow:var(--shadow-1);}
.empty-box svg{margin:0 auto 16px;display:block;color:var(--brass);}
.empty-box h2{font-family:var(--font-display);font-size:22px;margin:0 0 10px;border:0;padding:0;}
.empty-box p{font-size:15px;color:var(--ink-2);margin:0 0 22px;}

/* ---------- 目录 ---------- */
.toc-desktop{position:sticky;top:132px;border-left:1px solid var(--line);padding-left:18px;max-height:calc(100vh - 180px);overflow:auto;}
.toc-title{font-size:13px;letter-spacing:.08em;color:var(--ink-2);font-weight:600;margin:0 0 12px;}
.toc-list a{display:block;font-size:14px;line-height:1.55;color:var(--ink-2);padding:7px 0 7px 12px;border-left:2px solid transparent;transition:color .2s,border-color .2s;}
.toc-list a:hover{color:var(--brand);}
.toc-list a.active{color:var(--brand);border-left-color:var(--brand);font-weight:600;}
.toc-mobile{display:none;margin:0 0 28px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--paper-2);overflow:hidden;}
.toc-mobile summary{cursor:pointer;list-style:none;padding:14px 18px;font-size:15px;font-weight:600;color:var(--ink);}
.toc-mobile summary::-webkit-details-marker{display:none;}
.toc-mobile summary::after{content:"+";float:right;color:var(--brand);font-weight:600;}
.toc-mobile[open] summary::after{content:"−";}
.toc-mobile .toc-list{padding:0 18px 16px;}

/* ---------- 文末 ---------- */
.article-foot{max-width:760px;margin:48px auto 0;padding-top:28px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;}
.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.tag-label{font-size:13px;color:var(--ink-2);letter-spacing:.08em;}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:13px;background:var(--paper);border:1px solid var(--line);color:var(--ink-2);}

/* ---------- 相关推荐 ---------- */
.related{padding:80px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-head h2{font-family:var(--font-display);font-size:clamp(1.6rem,2.6vw,2.2rem);line-height:1.3;margin:0;font-weight:700;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.link-more svg{transition:transform .2s ease;}
.link-more:hover svg{transform:translateX(3px);}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rec-card{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease;}
.rec-card:hover{box-shadow:var(--shadow-2);border-color:var(--brand-10);}
.rec-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--paper);}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rec-card:hover .rec-thumb img{transform:scale(1.03);}
.rec-body{padding:22px 24px 26px;}
.rec-body h3{font-family:var(--font-display);font-size:18px;line-height:1.45;margin:12px 0 8px;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-body h3 a:hover{color:var(--brand);}
.rec-body p{font-size:14px;line-height:1.75;color:var(--ink-2);margin:0;}

/* ---------- 上下篇 ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1px 1fr;align-items:stretch;margin-top:64px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.post-nav-item{padding:24px 22px;display:flex;flex-direction:column;gap:8px;transition:background-color .2s ease;}
.post-nav-item:hover{background:var(--paper-2);}
.post-nav-item.next{text-align:right;}
.pn-label{font-size:13px;letter-spacing:.08em;color:var(--brass);}
.pn-title{font-size:16px;line-height:1.55;color:var(--ink);font-weight:600;}
.post-nav-item:hover .pn-title{color:var(--brand);}
.pn-divider{background:var(--line);}

/* ---------- CTA ---------- */
.cta-band{margin-top:80px;background:var(--deep);color:var(--paper);border-radius:20px;}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;padding:44px 40px;}
.cta-inner h2{font-family:var(--font-display);font-size:clamp(1.4rem,2.2vw,1.9rem);margin:0 0 8px;line-height:1.35;}
.cta-inner p{font-size:15px;line-height:1.8;color:rgba(247,243,236,.78);margin:0;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;}
.cta-actions .link-more{color:var(--brass);}
.cta-actions .btn-outline{border-color:rgba(247,243,236,.4);color:var(--paper);}
.cta-actions .btn-outline:hover{border-color:var(--brass);color:var(--brass);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:var(--paper);margin-top:96px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;}
.footer-brand .logo{color:var(--paper);font-size:19px;margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(247,243,236,.72);margin:0;max-width:360px;}
.footer-col h4{font-size:14px;letter-spacing:.08em;font-weight:600;color:var(--paper);border-top:1px solid var(--brass);padding-top:12px;margin:0 0 16px;}
.footer-col a{display:block;font-size:14px;color:rgba(247,243,236,.72);padding:6px 0;transition:color .2s;}
.footer-col a:hover{color:var(--brass);}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(247,243,236,.72);margin:0;}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid rgba(255,255,255,.14);padding:22px 0;font-size:13px;color:rgba(247,243,236,.62);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .brand-links{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .toc-desktop{display:none;}
  .toc-mobile{display:block;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .article-body{max-width:760px;}
}
@media (max-width:767px){
  body{font-size:16.5px;}
  .hamburger{display:block;}
  .topbar .btn-sm{display:none;}
  .article-section{padding-bottom:64px;}
  .article-layout{gap:0;}
  .related{padding-top:56px;}
  .related-grid{grid-template-columns:1fr;}
  .post-nav{grid-template-columns:1fr;}
  .pn-divider{height:1px;width:100%;}
  .post-nav-item.next{text-align:left;}
  .cta-inner{padding:32px 24px;}
  .site-footer{margin-top:64px;padding-top:48px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .crumbs .current{max-width:220px;}
}
@media (max-width:519px){
  .logo{font-size:18px;}
  .article-head{padding-top:14px;}
  .article-body h2{margin-top:1.8em;}
  .rec-body{padding:18px 18px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category3 */
:root{
  --paper:#F7F3EC;
  --paper-2:#FFFFFF;
  --ink:#1A1614;
  --ink-2:#5C534C;
  --line:#E4DBD0;
  --brand:#A83B2A;
  --brand-dark:#8A2E20;
  --brand-10:rgba(168,59,42,.10);
  --deep:#12362E;
  --brass:#C08A3E;
  --ok:#2F6B4F;
  --warn:#C08A3E;
  --err:#B4362B;
  --font-display:"Noto Serif SC","Songti SC","Source Han Serif SC","Times New Roman",serif;
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --shadow-1:0 1px 2px rgba(26,22,20,.04), 0 8px 24px -12px rgba(26,22,20,.14);
  --shadow-2:0 14px 34px -14px rgba(26,22,20,.22);
  --r-card:14px;
  --r-btn:10px;
  --r-tag:999px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.88;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.25;letter-spacing:.01em;margin:0}
p{margin:0 0 1.4em}
p:last-child{margin-bottom:0}
body .container{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;width:100%}
.prose{max-width:760px}
.muted{color:var(--ink-2)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:90;background:rgba(247,243,236,.97);transition:box-shadow .2s}
.site-header.is-compact{box-shadow:var(--shadow-1)}
.brandbar{border-bottom:1px solid var(--line)}
.brandbar-inner{display:flex;align-items:center;gap:28px;height:64px;transition:height .2s}
.site-header.is-compact .brandbar-inner{height:52px}
.logo{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-display);font-size:20px;font-weight:700;color:var(--ink);white-space:nowrap}
.logo-mark{width:22px;height:22px;border-radius:6px;background:var(--brand);position:relative;flex:none}
.logo-mark::after{content:"";position:absolute;right:3px;bottom:3px;width:7px;height:7px;border-radius:50%;background:var(--brass)}
.brand-links{display:flex;align-items:center;gap:22px;margin-left:8px}
.brand-links a{font-size:12px;color:var(--ink-2);letter-spacing:.04em;padding:4px 0;border-bottom:1px solid transparent;transition:color .18s,border-color .18s}
.brand-links a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.hamburger{display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--paper-2);border-radius:var(--r-btn);cursor:pointer;padding:11px 10px;flex-direction:column;justify-content:space-between}
.hamburger span{display:block;height:2px;background:var(--ink);border-radius:2px}
.hamburger:focus-visible{outline:2px solid var(--brass);outline-offset:2px}
.channelbar{border-bottom:1px solid var(--line);background:rgba(247,243,236,.97)}
.channel-inner{display:flex;align-items:center;gap:2px;height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-inner a{font-size:14px;color:var(--ink-2);padding:8px 18px;border-bottom:2px solid transparent;white-space:nowrap;transition:color .18s,border-color .18s}
.channel-inner a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.channel-inner a.active{color:var(--brand);border-bottom-color:var(--brand);font-weight:600}
.channel-inner a:focus-visible{outline:2px solid var(--brass);outline-offset:-2px;border-radius:4px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .18s,color .18s,border-color .18s,transform .18s,box-shadow .18s}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn:focus-visible{outline:2px solid var(--brass);outline-offset:2px}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:15px;font-weight:600}
.btn-text svg{transition:transform .18s}
.btn-text:hover svg{transform:translateX(3px)}
.btn-text:focus-visible{outline:2px solid var(--brass);outline-offset:2px;border-radius:4px}

/* ---------- badges ---------- */
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-tag);font-size:13px;background:rgba(18,54,46,.08);color:var(--deep);font-weight:600}
.tag-time{background:var(--paper);color:var(--ink-2);border:1px solid var(--line);font-weight:400}

/* ---------- breadcrumb ---------- */
.crumbs{padding:22px 0 0;font-size:14px;color:var(--ink-2)}
.crumbs a{color:var(--ink-2)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{margin:0 8px;color:var(--line)}
.crumbs .now{color:var(--ink)}

/* ---------- page hero ---------- */
.page-hero{margin-top:22px}
.hero-frame{position:relative;border-radius:var(--r-card);overflow:hidden;min-height:270px;display:flex;align-items:flex-end;border:1px solid var(--line);background:var(--deep)}
.hero-frame img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,54,46,.94) 0%,rgba(18,54,46,.66) 46%,rgba(18,54,46,.06) 100%)}
.hero-content{position:relative;padding:36px 34px;max-width:760px}
.hero-content h1{color:#fff;font-size:clamp(2.1rem,4.4vw,3.4rem)}
.hero-lead{color:rgba(247,243,236,.9);font-size:16px;line-height:1.8;margin:14px 0 0;max-width:640px}
.hero-stat{margin-top:16px;font-size:13px;color:rgba(247,243,236,.78);letter-spacing:.04em}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--brass);margin-bottom:12px}
.hero-kicker::before{content:"";width:18px;height:1px;background:var(--brass)}

/* ---------- sections ---------- */
.section{padding:96px 0;border-top:1px solid var(--line)}
.section:first-of-type{border-top:0}
.section-head{margin-bottom:40px;max-width:760px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.08em;color:var(--brass);margin-bottom:12px}
.eyebrow::before{content:"";width:20px;height:1px;background:var(--brass)}
.section-head h2{font-size:clamp(1.6rem,2.6vw,2.2rem)}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:4fr 8fr;gap:24px;align-items:start}
.aside-stick{position:sticky;top:132px}
.aside-card{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:26px}
.aside-card h3{font-size:18px;margin-bottom:6px}
.aside-card .hint{font-size:13px;color:var(--ink-2);margin-bottom:18px}
.aside-list{list-style:none;margin:0 0 22px;padding:0}
.aside-list li{position:relative;padding:12px 0 12px 20px;border-bottom:1px solid var(--line);font-size:14px;line-height:1.75;color:var(--ink-2)}
.aside-list li:last-child{border-bottom:0}
.aside-list li::before{content:"";position:absolute;left:0;top:19px;width:7px;height:7px;border-radius:50%;background:var(--brass)}
.aside-figure{margin:4px 0 18px;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line)}
.aside-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}

.guide-list{display:flex;flex-direction:column;gap:0}
.guide-item{display:grid;grid-template-columns:120px 1fr;gap:22px;padding:24px 0;border-bottom:1px solid var(--line);transition:background .18s}
.guide-item:first-child{padding-top:4px}
.guide-item:hover{background:linear-gradient(90deg,var(--brand-10),rgba(255,255,255,0) 70%)}
.guide-thumb{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:var(--paper-2)}
.guide-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover}
.item-meta{font-size:12px;letter-spacing:.08em;color:var(--brass);margin-bottom:6px}
.item-title{font-size:18px;line-height:1.4}
.item-title a{transition:color .18s}
.item-title a:hover{color:var(--brand)}
.item-desc{margin:8px 0 10px;font-size:14px;line-height:1.75;color:var(--ink-2)}

/* ---------- flow ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.flow-card{position:relative;padding:28px 24px 24px;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);transition:box-shadow .2s,border-color .2s}
.flow-card:hover{box-shadow:var(--shadow-2);border-color:var(--brand-10)}
.flow-num{font-family:var(--font-display);font-size:13px;letter-spacing:.08em;color:var(--brass);margin-bottom:14px}
.flow-card h3{font-size:18px;margin-bottom:10px}
.flow-card p{font-size:14px;line-height:1.78;color:var(--ink-2);margin:0}

/* ---------- scene ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);transition:box-shadow .2s}
.scene-card:hover{box-shadow:var(--shadow-2)}
.scene-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.scene-body{padding:24px}
.scene-body h3{font-size:18px;margin-bottom:10px}
.scene-body p{font-size:14px;line-height:1.78;color:var(--ink-2);margin:0}

/* ---------- faq ---------- */
.faq{border:1px solid var(--line);border-radius:var(--r-card);background:var(--paper-2);overflow:hidden}
.faq details+details{border-top:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 24px;font-family:var(--font-display);font-size:17px;line-height:1.5}
.faq summary::-webkit-details-marker{display:none}
.faq summary:focus-visible{outline:2px solid var(--brass);outline-offset:-2px}
.faq .ico{flex:none;width:22px;height:22px;position:relative;color:var(--brass);transition:transform .2s}
.faq .ico::before,.faq .ico::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq .ico::before{left:0;top:10px;width:22px;height:2px}
.faq .ico::after{top:0;left:10px;width:2px;height:22px}
.faq details[open] .ico{transform:rotate(45deg)}
.faq .answer{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--ink-2);max-width:720px}

/* ---------- cta ---------- */
.cta-bar{margin:0 0 96px}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;background:var(--paper-2);border:1px solid var(--line);border-radius:20px;padding:34px;box-shadow:var(--shadow-1)}
.cta-inner h2{font-size:clamp(1.4rem,2.2vw,1.8rem);margin-bottom:10px}
.cta-inner p{font-size:14px;color:var(--ink-2);margin:0;max-width:560px}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;background:rgba(26,22,20,.5);z-index:200;display:none}
.drawer.open{display:block}
.drawer-panel{position:absolute;top:0;right:0;bottom:0;width:min(86vw,380px);background:var(--paper);padding:26px 24px 40px;overflow-y:auto;box-shadow:var(--shadow-2)}
.drawer-close{position:absolute;top:18px;right:18px;width:44px;height:44px;border:1px solid var(--line);background:var(--paper-2);border-radius:var(--r-btn);font-size:20px;line-height:1;cursor:pointer;color:var(--ink)}
.drawer-close:focus-visible{outline:2px solid var(--brass);outline-offset:2px}
.drawer-nav{margin-top:34px;display:flex;flex-direction:column}
.drawer-nav a{font-family:var(--font-display);font-size:22px;padding:14px 0;border-bottom:1px solid var(--line)}
.drawer-nav a.active{color:var(--brand)}

/* ---------- footer ---------- */
.site-footer{background:var(--deep);color:var(--paper);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{color:var(--paper)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(247,243,236,.72);max-width:340px}
.footer-col h4{font-size:14px;letter-spacing:.08em;border-top:1px solid var(--brass);padding-top:14px;margin-bottom:16px;color:var(--paper);font-family:var(--font-body);font-weight:600}
.footer-col a{display:block;font-size:14px;padding:7px 0;color:rgba(247,243,236,.78);transition:color .18s}
.footer-col a:hover{color:var(--brass)}
.footer-col a:focus-visible{outline:2px solid var(--brass);outline-offset:2px}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(247,243,236,.72);margin:0}
.footer-bottom{margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(247,243,236,.62)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .brand-links{display:none}
  .hamburger{display:flex}
  .split{grid-template-columns:1fr}
  .aside-stick{position:static}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .hero-frame{min-height:230px}
  .hero-content{padding:26px 22px}
  .guide-item{grid-template-columns:96px 1fr;gap:16px}
  .cta-bar{margin-bottom:56px}
  .cta-inner{padding:26px 22px;border-radius:14px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:520px){
  body{font-size:16px}
  .brandbar-inner{height:58px;gap:14px}
  .brand-actions .btn{padding:0 16px;font-size:14px}
  .hero-content h1{font-size:clamp(1.7rem,7vw,2.1rem)}
  .guide-item{grid-template-columns:1fr;gap:12px}
  .guide-thumb img{aspect-ratio:16/9}
  .flow-grid{grid-template-columns:1fr}
  .faq summary{padding:16px 18px;font-size:16px}
  .faq .answer{padding:0 18px 18px}
  .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category2 */
:root{
  --paper:#F7F3EC;
  --paper-2:#FFFFFF;
  --ink:#1A1614;
  --ink-2:#5C534C;
  --line:#E4DBD0;
  --brand:#A83B2A;
  --brand-dark:#8A2E20;
  --brand-10:rgba(168,59,42,.10);
  --deep:#12362E;
  --brass:#C08A3E;
  --ok:#2F6B4F;
  --err:#B4362B;
  --font-display:"Noto Serif SC","Songti SC","Source Han Serif SC",serif;
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --shadow-1:0 1px 2px rgba(26,22,20,.04),0 8px 24px -12px rgba(26,22,20,.14);
  --shadow-2:0 14px 34px -14px rgba(26,22,20,.22);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brass);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- 按钮与链接 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 26px;border-radius:10px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-sm{height:44px;padding:0 20px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-block{width:100%}
.link-more{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand);font-size:14px;font-weight:600;
  margin-top:16px;transition:color .2s ease;
}
.link-more .arrow{transition:transform .2s ease;display:inline-block}
.link-more:hover{color:var(--brand-dark)}
.link-more:hover .arrow{transform:translateX(3px)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;font-size:13px;line-height:1;white-space:nowrap;
}
.badge-deep{background:rgba(18,54,46,.08);color:var(--deep)}
.badge-line{background:var(--paper);color:var(--ink-2);border:1px solid var(--line)}
.badge-ok{background:rgba(47,107,79,.12);color:var(--ok)}
.badge-brass{background:rgba(192,138,62,.16);color:#8B6122}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--paper);transition:box-shadow .25s ease}
.site-header.is-compact{box-shadow:var(--shadow-1)}
.brand-bar{border-bottom:1px solid var(--line)}
.brand-bar-inner{display:flex;align-items:center;gap:28px;height:64px;transition:height .25s ease}
.site-header.is-compact .brand-bar-inner{height:52px}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-display);font-size:19px;letter-spacing:.02em;
  color:var(--ink);white-space:nowrap;
}
.logo-mark{
  display:inline-block;width:16px;height:16px;border-radius:4px;flex:0 0 16px;
  background:linear-gradient(135deg,var(--brand) 0 50%,var(--brass) 50% 100%);
}
.brand-links{margin-right:auto;display:flex;align-items:center}
.brand-links a{font-size:12px;color:var(--ink-2);margin-right:22px;padding:6px 0;transition:color .2s ease}
.brand-links a:hover{color:var(--brand)}
.brand-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:var(--paper-2);cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:'';position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.channel-bar{border-bottom:1px solid var(--line);background:var(--paper)}
.channel-inner{
  display:flex;align-items:stretch;gap:4px;height:48px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  display:inline-flex;align-items:center;white-space:nowrap;
  font-size:14px;padding:8px 18px;color:var(--ink-2);
  border-bottom:2px solid transparent;transition:color .2s ease,border-color .2s ease;
}
.channel-link:hover{color:var(--brand);border-bottom-color:var(--brand)}
.channel-link.is-active{color:var(--brand);border-bottom-color:var(--brand);font-weight:600}

/* ---------- 抽屉导航 ---------- */
.drawer{
  position:fixed;inset:0;z-index:100;background:rgba(26,22,20,.5);
  backdrop-filter:blur(6px);opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.drawer.is-open{opacity:1;pointer-events:auto}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(360px,88vw);
  background:var(--paper);padding:24px;overflow-y:auto;
  transform:translateX(100%);transition:transform .3s ease;
  display:flex;flex-direction:column;
}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-close{
  align-self:flex-end;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:var(--paper-2);font-size:22px;line-height:1;cursor:pointer;margin-bottom:12px;
}
.drawer-link{
  font-family:var(--font-display);font-size:22px;color:var(--ink);
  padding:14px 0;border-bottom:1px solid var(--line);
}
.drawer-link.is-active{color:var(--brand)}
.drawer-cta{margin-top:24px}

/* ---------- 页面头图 ---------- */
.section{padding:0 0 80px}
.section--head{padding-top:36px}
.section--last{padding-bottom:88px}
.page-head{
  position:relative;margin-top:0;border-radius:14px;overflow:hidden;
  border:1px solid var(--line);min-height:260px;display:flex;align-items:flex-end;
  background-color:var(--deep);
  background-image:
    linear-gradient(90deg,rgba(18,54,46,.94) 0%,rgba(18,54,46,.74) 46%,rgba(18,54,46,.28) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.page-head-inner{padding:40px;max-width:760px}
.page-head .badge{background:rgba(247,243,236,.16);color:var(--paper)}
.page-title{
  font-family:var(--font-display);
  font-size:clamp(1.9rem,3.6vw,2.8rem);
  line-height:1.25;letter-spacing:.01em;
  color:var(--paper);margin:16px 0 12px;
}
.page-sub{color:rgba(247,243,236,.84);font-size:16px;margin:0;max-width:600px}
.page-lead{max-width:760px;margin:26px 0 0;font-size:17px;line-height:1.9;color:var(--ink-2)}
.page-meta{
  margin-top:18px;display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;
  font-size:13px;color:var(--ink-2);
}
.page-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--brass);display:inline-block}

/* ---------- 板块标题 ---------- */
.section-head{
  display:flex;justify-content:space-between;align-items:flex-end;
  gap:32px;flex-wrap:wrap;margin-bottom:40px;
}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.14em;
  color:var(--brass);margin-bottom:12px;
}
.section-title{
  font-family:var(--font-display);
  font-size:clamp(1.6rem,2.6vw,2.2rem);
  line-height:1.25;letter-spacing:.01em;margin:0;color:var(--ink);
}
.section-desc{max-width:420px;margin:0;font-size:15px;color:var(--ink-2)}

/* ---------- 时间轴 ---------- */
.timeline{position:relative}
.timeline::before{
  content:'';position:absolute;left:76px;top:8px;bottom:8px;width:1px;background:var(--line);
}
.tl-item{
  position:relative;display:grid;grid-template-columns:76px minmax(0,1fr) 220px;
  gap:28px;padding:30px 0;border-bottom:1px solid var(--line);
}
.tl-item:last-child{border-bottom:0}
.tl-no{
  font-family:var(--font-display);font-size:1.5rem;line-height:1.2;
  color:var(--brass);text-align:right;padding-right:24px;
}
.tl-title{font-size:1.25rem;line-height:1.4;margin:0 0 10px;font-weight:600;color:var(--ink)}
.tl-text{margin:0;font-size:15px;line-height:1.8;color:var(--ink-2);max-width:560px}
.tl-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.tl-media{
  margin:0;border-radius:14px;overflow:hidden;border:1px solid var(--line);
  background:var(--paper-2);align-self:start;
}
.tl-media img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- 平台适配清单 ---------- */
.spec-list{
  border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--paper-2);
  box-shadow:var(--shadow-1);
}
.spec-row{
  position:relative;display:grid;grid-template-columns:1.1fr 2fr .8fr .9fr;
  gap:20px;align-items:center;padding:18px 24px;
  border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-2);
  transition:background .2s ease;
}
.spec-row:last-child{border-bottom:0}
.spec-row:hover{background:var(--paper)}
.spec-row:hover::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);
}
.spec-head{
  background:var(--paper);font-size:13px;letter-spacing:.08em;color:var(--ink-2);
}
.spec-name{font-family:var(--font-display);font-size:17px;color:var(--ink)}

/* ---------- 准备清单 ---------- */
.check-list{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:0 48px;border-top:1px solid var(--line);
}
.check-item{display:flex;gap:14px;align-items:flex-start;padding:20px 0;border-bottom:1px solid var(--line)}
.check-icon{
  flex:0 0 22px;width:22px;height:22px;border-radius:999px;
  background:var(--brand-10);position:relative;margin-top:5px;
}
.check-icon::after{
  content:'';position:absolute;left:7px;top:3px;width:6px;height:11px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(40deg);
}
.check-item p{margin:0;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-list{
  border:1px solid var(--line);border-radius:14px;background:var(--paper-2);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:20px;
  padding:22px 26px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-family:var(--font-body);color:var(--ink);transition:color .2s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{position:relative;flex:0 0 18px;width:18px;height:18px}
.faq-icon::before,.faq-icon::after{
  content:'';position:absolute;background:var(--brand);transition:transform .2s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg)}
.faq-a{padding:0 26px 24px;font-size:15px;line-height:1.8;color:var(--ink-2)}
.faq-a p{margin:0;max-width:720px}

/* ---------- CTA ---------- */
.cta-bar{
  display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap;
  background:var(--paper-2);border:1px solid var(--line);border-radius:20px;
  padding:36px 40px;box-shadow:var(--shadow-1);
}
.cta-title{font-family:var(--font-display);font-size:1.4rem;line-height:1.35;margin:0 0 8px;color:var(--ink)}
.cta-text{margin:0;font-size:14px;color:var(--ink-2);max-width:520px}
.cta-actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.cta-actions .link-more{margin-top:0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:var(--paper)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding:64px 0 44px}
.footer-brand .logo{color:var(--paper)}
.footer-brand p{
  margin:16px 0 0;max-width:330px;font-size:14px;line-height:1.8;
  color:rgba(247,243,236,.72);
}
.footer-col h4{
  margin:0 0 16px;padding-top:12px;font-size:14px;font-weight:600;
  letter-spacing:.08em;color:var(--brass);border-top:1px solid var(--brass);
}
.footer-col a{
  display:block;font-size:15px;padding:7px 0;
  color:rgba(247,243,236,.78);transition:color .2s ease;
}
.footer-col a:hover{color:var(--paper);text-decoration:underline}
.footer-col p{margin:0;font-size:14px;line-height:1.8;color:rgba(247,243,236,.72)}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding:20px 0;font-size:13px;color:rgba(247,243,236,.6);
  border-top:1px solid rgba(255,255,255,.14);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .brand-links{display:none}
  .nav-toggle{display:inline-flex}
  .tl-item{grid-template-columns:64px minmax(0,1fr) 190px;gap:22px}
  .timeline::before{left:64px}
  .tl-no{padding-right:18px}
  .spec-row{grid-template-columns:1fr 1.8fr .8fr .9fr;gap:14px;font-size:14px}
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 32px}
  .check-list{grid-template-columns:1fr;gap:0}
}
@media (max-width:768px){
  body{font-size:16px}
  .section{padding-bottom:52px}
  .section--head{padding-top:20px}
  .section--last{padding-bottom:64px}
  .page-head{min-height:220px}
  .page-head-inner{padding:26px 22px}
  .section-head{margin-bottom:28px}
  .tl-item{grid-template-columns:48px minmax(0,1fr);gap:18px;padding:24px 0}
  .timeline::before{left:48px}
  .tl-no{font-size:1.2rem;padding-right:14px}
  .tl-media{grid-column:2;max-width:340px;margin-top:16px}
  .spec-row{grid-template-columns:1fr;gap:6px;padding:18px 20px}
  .spec-head{display:none}
  .cta-bar{padding:26px 22px}
}
@media (max-width:640px){
  .brand-actions .btn{display:none}
  .brand-bar-inner{height:60px}
}
@media (max-width:520px){
  .timeline::before{display:none}
  .tl-item{
    grid-template-columns:1fr;gap:8px;padding:22px 0 22px 18px;
    border-left:2px solid var(--line);border-bottom:1px solid var(--line);
  }
  .tl-no{text-align:left;padding-right:0;font-size:1.05rem}
  .tl-media{display:none}
  .footer-grid{grid-template-columns:1fr}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}

/* roulang page: category4 */
:root{
  --paper:#F7F3EC;
  --paper-2:#FFFFFF;
  --ink:#1A1614;
  --ink-2:#5C534C;
  --line:#E4DBD0;
  --brand:#A83B2A;
  --brand-dark:#8A2E20;
  --brand-10:rgba(168,59,42,.10);
  --deep:#12362E;
  --brass:#C08A3E;
  --ok:#2F6B4F;
  --warn:#C08A3E;
  --err:#B4362B;
  --shadow-1:0 1px 2px rgba(26,22,20,.04),0 8px 24px -12px rgba(26,22,20,.14);
  --shadow-2:0 14px 34px -14px rgba(26,22,20,.22);
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --r-panel:20px;
  --font-display:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
html body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--font-body);font-size:17px;line-height:1.88;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
html h1,html h2,html h3,html h4{
  font-family:var(--font-display);font-weight:600;line-height:1.28;
  letter-spacing:.01em;margin:0;
}
html p{margin:0}
html a{color:inherit;text-decoration:none}
html img{display:block;max-width:100%}
html button{font:inherit;cursor:pointer;border:0;background:none}
html ul,html ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brass);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--paper)}
.brandbar{border-bottom:1px solid var(--line);transition:box-shadow .22s ease}
.brandbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px;transition:height .22s ease}
.brandbar.rl-compact .brandbar-inner{height:52px}
.brandbar.rl-compact{box-shadow:var(--shadow-1)}
.logo{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-display);font-size:21px;font-weight:600;white-space:nowrap}
.logo-mark{position:relative;flex:0 0 22px;width:22px;height:22px;border-radius:6px;background:var(--brand)}
.logo-mark::after{content:"";position:absolute;left:6px;top:6px;right:6px;bottom:6px;border:1.5px solid var(--paper);border-radius:2px}
.brand-links{display:flex;gap:18px}
.brand-links a{font-size:12px;color:var(--ink-2);letter-spacing:.04em;transition:color .18s}
.brand-links a:hover{color:var(--brand)}
.brand-actions{display:flex;align-items:center;gap:12px}
.hamburger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--paper-2);flex-direction:column;justify-content:center;align-items:center;gap:4px}
.hamburger span{display:block;width:18px;height:1.5px;background:var(--ink)}
.channelbar{border-bottom:1px solid var(--line)}
.channels{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none}
.channels::-webkit-scrollbar{display:none}
.channels a{font-size:14px;color:var(--ink-2);padding:8px 18px;border-bottom:2px solid transparent;white-space:nowrap;transition:color .18s,border-color .18s}
.channels a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.channels a.active{color:var(--brand);border-bottom-color:var(--brand);font-weight:600}

/* ---------- 抽屉 ---------- */
.rl-drawer{position:fixed;inset:0;z-index:90;background:var(--paper);padding:28px 24px;overflow-y:auto;transform:translateX(100%);transition:transform .28s ease}
.rl-drawer.rl-open{transform:translateX(0)}
.rl-drawer-close{position:absolute;top:20px;right:20px;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--paper-2);font-size:22px;line-height:1;color:var(--ink)}
.rl-drawer-nav{margin-top:56px;display:flex;flex-direction:column}
.rl-drawer-nav a{font-family:var(--font-display);font-size:26px;padding:14px 0;border-bottom:1px solid var(--line)}
.rl-drawer-nav a:hover,.rl-drawer-nav a.active{color:var(--brand)}
body.rl-locked{overflow:hidden}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:500;border:1px solid transparent;transition:transform .18s,background-color .18s,color .18s,border-color .18s,box-shadow .18s}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.rl-text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:500}
.rl-text-link svg{transition:transform .18s}
.rl-text-link:hover svg{transform:translateX(3px)}

/* ---------- 页头 ---------- */
.rl-hero-wrap{padding:40px 0 0}
.page-hero{position:relative;overflow:hidden;height:280px;border-radius:var(--r-card);border:1px solid var(--line);background:var(--deep)}
.page-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,54,46,.90) 0%,rgba(18,54,46,.58) 46%,rgba(18,54,46,.14) 100%)}
.page-hero-inner{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:flex-end;gap:14px;padding:36px 40px;max-width:820px;color:#fff}
.page-hero h1{font-size:clamp(1.7rem,3.2vw,2.5rem);color:#fff}
.hero-lead{font-size:16px;line-height:1.85;color:rgba(247,243,236,.9);max-width:680px}
.hero-index{position:absolute;z-index:2;top:18px;right:22px;font-family:var(--font-display);font-size:13px;letter-spacing:.14em;color:var(--brass);border:1px solid rgba(192,138,62,.6);border-radius:var(--r-pill);padding:2px 12px;background:rgba(18,54,46,.35)}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:13px;line-height:1}
.badge-light{background:rgba(247,243,236,.16);color:#fff;border:1px solid rgba(247,243,236,.28)}
.badge-deep{background:rgba(18,54,46,.08);color:var(--deep)}
.hero-meta{font-size:13px;color:var(--ink-2);margin-top:14px;letter-spacing:.02em}

/* ---------- 板块 ---------- */
.rl-sec{padding:96px 0}
.rl-sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.rl-eyebrow{display:block;font-family:var(--font-display);font-size:12px;letter-spacing:.16em;color:var(--brass);margin-bottom:10px}
.rl-sec-head h2{font-size:clamp(1.5rem,2.4vw,2rem)}
.rl-sec-note{font-size:14px;line-height:1.8;color:var(--ink-2);max-width:420px}

/* ---------- 图文引导 ---------- */
.rl-intro{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:36px;align-items:center}
.rl-intro-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--line);background:var(--paper-2)}
.rl-intro-body h2{font-size:clamp(1.5rem,2.4vw,1.9rem)}
.rl-intro-body p{font-size:16px;line-height:1.9;color:var(--ink-2);margin-top:16px}
.rl-points{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.rl-points li{position:relative;padding-left:20px;font-size:14px;color:var(--ink-2);line-height:1.8}
.rl-points li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--brass)}

/* ---------- 双列条块 ---------- */
.rl-block{border:1px solid var(--line);border-radius:var(--r-card);background:var(--paper-2);overflow:hidden;box-shadow:var(--shadow-1)}
.rl-row{position:relative;display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);border-top:1px solid var(--line)}
.rl-row:first-child{border-top:0}
.rl-row::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);transform:scaleY(0);transform-origin:top;transition:transform .2s ease;z-index:3}
.rl-row:hover::before{transform:scaleY(1)}
.rl-col-l{padding:26px 28px;border-right:1px solid var(--line);background:var(--paper)}
.rl-col-r{padding:26px 28px}
.rl-idx{display:block;font-family:var(--font-display);font-size:13px;letter-spacing:.12em;color:var(--brass);margin-bottom:10px}
.rl-col-l h3{font-size:17px;line-height:1.55}
.rl-col-r p{font-size:15px;line-height:1.85;color:var(--ink-2)}
.rl-tags{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.rl-tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:13px;background:var(--paper);border:1px solid var(--line);color:var(--ink-2)}
.rl-tag-deep{background:rgba(18,54,46,.08);border-color:transparent;color:var(--deep)}
.rl-ver{font-family:var(--font-display);font-size:20px;color:var(--deep);letter-spacing:.02em}
.rl-ver-date{display:block;font-size:13px;color:var(--ink-2);margin-top:6px;letter-spacing:.02em}

/* ---------- 流程 ---------- */
.rl-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rl-step{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-1);transition:box-shadow .2s,border-color .2s}
.rl-step:hover{border-color:rgba(168,59,42,.28);box-shadow:var(--shadow-2)}
.rl-num{font-family:var(--font-display);font-size:15px;letter-spacing:.12em;color:var(--brass)}
.rl-step h3{margin-top:12px;font-size:18px}
.rl-step p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.rl-faq{border:1px solid var(--line);border-radius:var(--r-card);background:var(--paper-2);overflow:hidden}
.rl-faq details{border-top:1px solid var(--line)}
.rl-faq details:first-child{border-top:0}
.rl-faq summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 26px;font-family:var(--font-display);font-size:17px;cursor:pointer;list-style:none;transition:color .18s}
.rl-faq summary::-webkit-details-marker{display:none}
.rl-faq summary:hover{color:var(--brand)}
.rl-plus{position:relative;flex:0 0 16px;width:16px;height:16px}
.rl-plus::before,.rl-plus::after{content:"";position:absolute;background:var(--brand);transition:transform .2s ease,opacity .2s ease}
.rl-plus::before{left:0;top:7px;width:16px;height:1.6px}
.rl-plus::after{left:7px;top:0;width:1.6px;height:16px}
details[open] .rl-plus::after{transform:rotate(90deg);opacity:0}
.rl-answer{padding:0 26px 22px;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ---------- CTA ---------- */
.rl-cta{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;background:var(--deep);color:var(--paper);border-radius:var(--r-panel);padding:40px 44px}
.rl-cta h2{font-size:clamp(1.3rem,2vw,1.7rem);color:var(--paper)}
.rl-cta p{margin-top:10px;font-size:14px;line-height:1.8;color:rgba(247,243,236,.78);max-width:520px}
.rl-cta-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.rl-cta .rl-text-link{color:var(--paper)}
.rl-cta .rl-text-link:hover{color:var(--brass)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:var(--paper);margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding:64px 0 40px}
.footer-brand .logo{color:var(--paper);font-size:20px}
.footer-brand .logo-mark{background:var(--brass)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(247,243,236,.72);max-width:360px}
.footer-col h4{font-size:14px;letter-spacing:.08em;color:#fff;border-top:1px solid var(--brass);padding-top:14px;margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:rgba(247,243,236,.76);padding:6px 0;transition:color .18s}
.footer-col a:hover{color:#fff}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(247,243,236,.72)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.14);padding:18px 0;font-size:13px;color:rgba(247,243,236,.68)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .rl-intro{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .rl-steps{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .brand-links{display:none}
  .hamburger{display:flex}
}
@media (max-width:768px){
  html body{font-size:16px}
  .rl-sec{padding:56px 0}
  .rl-hero-wrap{padding:24px 0 0}
  .page-hero{height:auto;min-height:270px}
  .page-hero-inner{padding:26px 22px;gap:12px}
  .hero-lead{font-size:15px}
  .rl-row{grid-template-columns:1fr}
  .rl-col-l{border-right:0;border-bottom:1px solid var(--line);padding:20px 22px}
  .rl-col-r{padding:20px 22px 24px}
  .rl-steps{grid-template-columns:1fr}
  .rl-cta{padding:32px 24px}
  .site-footer{margin-top:56px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
}
@media (max-width:520px){
  .logo{font-size:18px}
  .btn{padding:0 20px;font-size:14px}
  .rl-sec-head{margin-bottom:26px}
}

/* roulang page: category5 */
:root{
  --paper:#F7F3EC;
  --paper-2:#FFFFFF;
  --ink:#1A1614;
  --ink-2:#5C534C;
  --line:#E4DBD0;
  --brand:#A83B2A;
  --brand-dark:#8A2E20;
  --brand-10:rgba(168,59,42,.10);
  --deep:#12362E;
  --brass:#C08A3E;
  --ok:#2F6B4F;
  --warn:#C08A3E;
  --err:#B4362B;
  --font-display:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,Segoe UI,sans-serif;
  --shadow-1:0 1px 2px rgba(26,22,20,.04),0 8px 24px -12px rgba(26,22,20,.14);
  --shadow-2:0 14px 34px -14px rgba(26,22,20,.22);
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
html body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.88;
  -webkit-font-smoothing:antialiased;
  -webkit-text-size-adjust:100%;
}
html h1,html h2,html h3,html h4{
  font-family:var(--font-display);
  line-height:1.25;
  letter-spacing:.01em;
  margin:0;
  font-weight:600;
}
html p{margin:0 0 1.4em;}
html a{color:inherit;text-decoration:none;}
html img{max-width:100%;display:block;}
html button{font-family:inherit;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.narrow{max-width:760px;}
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(1.6rem,2.6vw,2.2rem);}
.section-head p{font-size:14px;color:var(--ink-2);margin:8px 0 0;max-width:640px;line-height:1.8;}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.08em;color:var(--brass);margin-bottom:12px;text-transform:none;}
.hr{height:1px;background:var(--line);border:0;margin:0;}
.scroll-anchor{scroll-margin-top:96px;}

/* ---------- header ---------- */
.site-header{position:relative;z-index:60;background:var(--paper);}
.brand-row{height:64px;border-bottom:1px solid var(--line);background:var(--paper);transition:height .22s ease,box-shadow .22s ease;}
.site-header.is-compact .brand-row{height:52px;box-shadow:var(--shadow-1);}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:100%;}
.logo{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-display);font-size:20px;font-weight:600;letter-spacing:.02em;color:var(--ink);white-space:nowrap;}
.logo-mark{width:22px;height:22px;border-radius:6px;background:var(--brand);position:relative;flex:0 0 auto;}
.logo-mark::after{content:"";position:absolute;right:-3px;bottom:-3px;width:9px;height:9px;border-radius:3px;background:var(--brass);}
.brand-links{display:flex;align-items:center;gap:22px;}
.brand-links a{font-size:12px;letter-spacing:.06em;color:var(--ink-2);transition:color .18s ease;}
.brand-links a:hover{color:var(--brand);}
.brand-actions{display:flex;align-items:center;gap:12px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:500;cursor:pointer;border:1px solid transparent;transition:all .18s ease;white-space:nowrap;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--brass);outline-offset:2px;}
.hamburger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:transparent;align-items:center;justify-content:center;cursor:pointer;}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}

.channel-row{height:48px;border-bottom:1px solid var(--line);background:var(--paper);}
.channel-inner{display:flex;align-items:center;height:48px;gap:2px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-inner a{font-size:14px;color:var(--ink-2);padding:8px 18px;border-bottom:2px solid transparent;white-space:nowrap;transition:color .18s ease,border-color .18s ease;}
.channel-inner a:hover{color:var(--brand);border-bottom-color:var(--brand);}
.channel-inner a.active{color:var(--brand);border-bottom-color:var(--brand);font-weight:600;}

/* ---------- drawer ---------- */
.mobile-drawer{position:fixed;inset:0;background:var(--paper);z-index:120;display:none;padding:24px 24px 40px;overflow-y:auto;}
.mobile-drawer.open{display:block;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:transparent;font-size:20px;color:var(--ink);cursor:pointer;}
.drawer-links a{display:block;font-family:var(--font-display);font-size:26px;padding:16px 0;border-bottom:1px solid var(--line);color:var(--ink);}
.drawer-links a.active{color:var(--brand);}
.drawer-cta{margin-top:28px;}

/* ---------- hero ---------- */
.hero-wrap{padding-top:40px;}
.page-hero{position:relative;border-radius:var(--r-card);overflow:hidden;min-height:264px;display:flex;align-items:flex-end;background-image:url("/assets/images/backpic/back-3.webp");background-size:cover;background-position:center;border:1px solid var(--line);}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(18,54,46,.90) 0%,rgba(18,54,46,.52) 55%,rgba(18,54,46,.10) 100%);}
.hero-inner{position:relative;z-index:2;padding:34px 36px;width:100%;}
.hero-pill{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:13px;background:rgba(247,243,236,.16);color:#fff;border:1px solid rgba(247,243,236,.35);margin-bottom:16px;}
.page-hero h1{font-size:clamp(1.8rem,3.6vw,2.6rem);color:#fff;max-width:820px;}
.hero-lead{padding:32px 0 8px;}
.hero-lead .lead-text{font-size:17px;color:var(--ink);max-width:760px;line-height:1.9;}
.meta-line{font-size:13px;color:var(--ink-2);letter-spacing:.02em;}

/* ---------- stat strip ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;margin-top:32px;}
.stat-cell{background:var(--paper-2);padding:22px 24px;}
.stat-num{font-size:clamp(1.5rem,2.4vw,1.9rem);font-weight:700;color:var(--deep);font-family:var(--font-body);line-height:1.2;}
.stat-num small{font-size:14px;font-weight:500;color:var(--ink-2);margin-left:4px;}
.stat-label{font-size:13px;color:var(--ink-2);margin-top:6px;}

/* ---------- dense list ---------- */
.dense-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px;}
.dense-item{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);align-items:flex-start;transition:background-color .18s ease;}
.dense-item:hover{background:rgba(168,59,42,.03);}
.dense-thumb{width:44px;height:44px;flex:0 0 auto;border-radius:10px;object-fit:cover;border:1px solid var(--line);background:var(--paper-2);}
.dense-title{font-size:16px;font-weight:600;line-height:1.5;color:var(--ink);}
.dense-desc{font-size:14px;line-height:1.75;color:var(--ink-2);margin:4px 0 0;}

/* ---------- flow ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.flow-card{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--shadow-1);transition:border-color .18s ease,box-shadow .18s ease;}
.flow-card:hover{border-color:rgba(168,59,42,.35);box-shadow:var(--shadow-2);}
.flow-num{font-family:var(--font-display);font-size:14px;letter-spacing:.08em;color:var(--brass);}
.flow-card h3{font-size:17px;margin:12px 0 8px;}
.flow-card p{font-size:14px;line-height:1.75;color:var(--ink-2);margin:0;}

/* ---------- form ---------- */
.support-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.form-block{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);padding:32px;box-shadow:var(--shadow-1);}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px;}
.field input,.field textarea{width:100%;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-btn);font-family:inherit;font-size:15px;color:var(--ink);transition:border-color .18s ease,box-shadow .18s ease;}
.field input{height:48px;padding:0 14px;}
.field textarea{min-height:124px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px var(--brand-10);}
.field.has-error input,.field.has-error textarea{border-color:var(--err);}
.field-err{display:none;font-size:12px;color:var(--err);margin-top:6px;}
.field.has-error .field-err{display:block;}
.btn-block{width:100%;}
.privacy{margin-top:16px;font-size:12px;line-height:1.7;color:var(--ink-2);}
.privacy a{color:var(--brand);border-bottom:1px solid var(--brand-10);}
.form-note{margin-top:16px;font-size:13px;color:var(--ok);background:rgba(47,107,79,.08);border:1px solid rgba(47,107,79,.25);border-radius:var(--r-btn);padding:12px 14px;}

/* ---------- faq ---------- */
.faq{border:1px solid var(--line);border-radius:var(--r-card);background:var(--paper-2);overflow:hidden;}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;background:none;border:0;cursor:pointer;text-align:left;font-size:17px;color:var(--ink);}
.faq-icon{flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .2s ease;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brass);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;}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{display:none;padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--ink-2);}
.faq-item.open .faq-a{display:block;}

.update-line{font-size:13px;color:var(--ink-2);line-height:1.9;border-top:1px solid var(--line);padding-top:16px;margin-top:32px;}

/* ---------- cta ---------- */
.cta-bar{border:1px solid var(--line);background:var(--paper-2);border-radius:var(--r-card);padding:30px 34px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;box-shadow:var(--shadow-1);}
.cta-bar p{font-size:14px;color:var(--ink-2);margin:6px 0 0;}
.cta-bar h2{font-size:clamp(1.2rem,2vw,1.5rem);}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--deep);color:var(--paper);margin-top:96px;padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .logo{color:var(--paper);font-size:19px;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(247,243,236,.72);margin-top:16px;max-width:320px;}
.footer-col h4{font-size:14px;letter-spacing:.08em;font-family:var(--font-body);font-weight:600;color:var(--paper);border-top:1px solid var(--brass);padding-top:14px;margin-bottom:14px;}
.footer-col a{display:block;font-size:14px;color:rgba(247,243,236,.76);padding:6px 0;transition:color .18s ease;}
.footer-col a:hover{color:var(--brass);}
.footer-col p{font-size:13px;line-height:1.85;color:rgba(247,243,236,.66);margin:0;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:48px;padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(247,243,236,.62);}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .flow-grid{grid-template-columns:repeat(2,1fr);}
  .support-grid{grid-template-columns:1fr;gap:32px;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  .section-sm{padding:44px 0;}
  .brand-links{display:none;}
  .hamburger{display:inline-flex;}
  .brand-actions .btn-primary{display:none;}
  .channel-row{position:sticky;top:0;z-index:50;background:var(--paper);box-shadow:var(--shadow-1);}
  .hero-inner{padding:24px 20px;}
  .dense-list{grid-template-columns:1fr;gap:0;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .flow-grid{grid-template-columns:1fr;}
  .cta-bar{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .form-block{padding:22px;}
}
@media (max-width:520px){
  html body{font-size:16px;}
  .dense-thumb{width:38px;height:38px;border-radius:9px;}
  .hero-lead .lead-text{font-size:16px;}
}