/* roulang page: index */
:root{
  --ink:#14100D;
  --ink-2:#3A342E;
  --muted:#7A736A;
  --paper:#F7F3EC;
  --surface:#FFFFFF;
  --surface-2:#EFE9DF;
  --line:#E2D9CB;
  --primary:#B4522A;
  --primary-600:#933F1E;
  --primary-100:#F6E7DF;
  --accent:#1F6B57;
  --accent-100:#E3EFEA;
  --data:#C08A16;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,16,13,.06);
  --sh-2:0 12px 32px -12px rgba(20,16,13,.18);
  --sh-3:0 22px 48px -18px rgba(20,16,13,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-mono:"Roboto Mono","SFMono-Regular",ui-monospace,Menlo,monospace;
}
*,*::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;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--primary-600);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:10px 18px;border-radius:0 0 var(--r-sm) 0;z-index:200;}
.skip-link:focus{left:0;}

/* 容器 */
.grid-container{max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px;}
.reading{max-width:800px;margin:0 auto;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--paper2{background:var(--surface-2);}

/* 标题体系 */
h1{font-size:clamp(30px,4.6vw,52px);line-height:1.24;font-weight:800;letter-spacing:0;}
h2{font-size:clamp(24px,3vw,34px);line-height:1.3;font-weight:700;}
h3{font-size:20px;line-height:1.4;font-weight:700;}
h4{font-size:17px;line-height:1.5;font-weight:700;}
.sec-title{position:relative;padding-left:16px;}
.sec-title::before{content:"";position:absolute;left:0;top:.16em;width:4px;height:1em;background:var(--primary);border-radius:2px;}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:40px;}
.sec-note{font-size:14px;line-height:1.7;color:var(--muted);max-width:520px;}
.lead{font-size:18px;line-height:1.8;color:var(--ink-2);}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-sm);font-size:16px;font-weight:600;line-height:1;transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.btn-primary{background:var(--primary);color:var(--paper);box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--primary-600);color:var(--paper);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{border:1px solid var(--primary);color:var(--primary);background:transparent;}
.btn-outline:hover{background:var(--primary-100);color:var(--primary-600);}
.btn-block{width:100%;}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px;}
.btn-text .arw{transition:transform .2s var(--ease);}
.btn-text:hover .arw{transform:translateX(4px);}

/* 徽章与标签 */
.badge{display:inline-block;height:24px;line-height:24px;padding:0 8px;border-radius:4px;font-size:12px;font-weight:600;background:var(--primary-100);color:var(--primary);}
.badge--accent{background:var(--accent-100);color:var(--accent);}
.badge--neutral{background:var(--surface-2);color:var(--ink-2);}
.chip{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--surface);font-size:14px;color:var(--ink-2);}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:80;background:transparent;transition:background-color .24s var(--ease),box-shadow .24s var(--ease);}
.site-header::before{content:"";display:block;height:1px;background:var(--primary);}
.site-header.is-scrolled{background:rgba(247,243,236,.94);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);box-shadow:0 1px 0 var(--line);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:74px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{width:34px;height:34px;border-radius:8px;background:var(--primary);color:var(--paper);display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.02em;box-shadow:var(--sh-1);}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.01em;}
.nav-desktop{display:flex;align-items:center;gap:32px;}
.nav-link{position:relative;display:inline-block;font-size:15px;font-weight:500;letter-spacing:.02em;color:var(--ink-2);padding:6px 0;}
.nav-link::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:0;height:2px;background:var(--primary);transition:width .18s var(--ease);}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{width:20px;height:3px;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-cta{height:40px;padding:0 22px;font-size:15px;border-radius:var(--r-pill);}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-sm);align-items:center;justify-content:center;flex-direction:column;gap:5px;border:1px solid var(--line);background:var(--surface);}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:transform .22s var(--ease),opacity .18s var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-drawer{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--paper);z-index:90;transform:translateX(100%);transition:transform .28s var(--ease);display:flex;flex-direction:column;padding:88px 24px 28px;overflow-y:auto;}
.nav-drawer.is-open{transform:translateX(0);}
.nav-drawer a.d-link{display:block;font-size:18px;line-height:56px;color:var(--ink);border-bottom:1px solid var(--line);}
.nav-drawer a.d-link.is-active{color:var(--primary);font-weight:700;}
.nav-drawer .d-cta{margin-top:24px;}

/* Hero */
.hero{position:relative;padding:84px 0 96px;border-bottom:1px solid var(--line);overflow:hidden;background:var(--paper);}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(20,16,13,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(20,16,13,.035) 1px,transparent 1px);background-size:24px 24px;pointer-events:none;}
.hero::after{content:"";position:absolute;right:-6%;top:-10%;width:58%;height:120%;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.09;pointer-events:none;}
.hero .grid-container{position:relative;z-index:2;}
.hero-h1{margin-bottom:18px;}
.hero-sub{font-size:19px;line-height:1.8;color:var(--ink-2);max-width:560px;margin-bottom:30px;}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.trust-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--ink-2);}
.trust-row .t-item{display:inline-flex;align-items:center;gap:8px;}
.trust-row .t-div{width:1px;height:16px;background:var(--line);}
.ico{width:20px;height:20px;flex:0 0 20px;stroke:var(--primary);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}

.hero-board{position:relative;margin-top:8px;}
.board-back{position:absolute;right:-16px;bottom:-18px;width:74%;height:76%;border-radius:var(--r-lg);background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.16;filter:saturate(.9);}
.board-card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:28px;}
.board-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);}
.board-head h3{font-size:17px;}
.board-head span{font-size:13px;color:var(--muted);}
.board-grid{display:grid;grid-template-columns:1fr 1fr;}
.board-cell{padding:20px 18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);}
.board-cell:nth-child(2n){border-right:0;}
.board-cell:nth-child(n+3){border-bottom:0;}
.board-num{font-family:var(--font-mono);font-size:34px;font-weight:700;line-height:1.1;color:var(--ink);}
.board-num em{font-style:normal;font-size:13px;color:var(--muted);margin-left:4px;font-weight:500;}
.board-desc{font-size:13px;color:var(--ink-2);margin-top:6px;}

/* 指标带 */
.metric-strip{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.metric-cell{padding:28px 24px;border-left:1px solid var(--line);transition:background-color .2s var(--ease);}
.metric-cell:first-child{border-left:0;}
.metric-cell:hover{background:var(--primary-100);}
.metric-num{font-family:var(--font-mono);font-size:44px;font-weight:700;line-height:1.05;color:var(--primary);}
.metric-num em{font-style:normal;font-size:14px;font-weight:500;color:var(--muted);margin-left:6px;}
.metric-label{font-size:13px;color:var(--muted);margin-top:10px;}

/* 服务矩阵 */
.service-main{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);display:block;color:var(--ink);}
.service-main:hover{transform:translateY(-2px);border-color:var(--primary);box-shadow:var(--sh-2);color:var(--ink);}
.service-main .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--surface-2);}
.service-main .thumb img{width:100%;height:100%;object-fit:cover;}
.service-main .body{padding:26px 26px 28px;}
.service-main h3{margin-bottom:12px;}
.service-main p{font-size:15px;line-height:1.8;color:var(--ink-2);margin-bottom:6px;}
.service-list{display:flex;flex-direction:column;gap:16px;}
.service-item{display:flex;align-items:center;gap:18px;min-height:96px;padding:18px 22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);color:var(--ink);transition:border-color .2s var(--ease),background-color .2s var(--ease),transform .2s var(--ease);}
.service-item:hover{border-color:var(--primary);background:rgba(246,231,223,.4);color:var(--ink);transform:translateY(-1px);}
.service-item .idx{font-family:var(--font-mono);font-size:15px;font-weight:700;color:var(--primary);flex:0 0 34px;}
.service-item .txt{flex:1 1 auto;}
.service-item h4{margin-bottom:2px;}
.service-item p{font-size:14px;line-height:1.7;color:var(--muted);}
.service-item .arw{font-size:18px;color:var(--primary);transition:transform .2s var(--ease);}
.service-item:hover .arw{transform:translateX(4px);}

/* 对比 */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;position:relative;}
.compare-col{padding:30px 28px;border-radius:var(--r-md);}
.compare-col h3{margin-bottom:8px;}
.compare-col .c-note{font-size:13px;color:var(--muted);margin-bottom:22px;}
.compare-col--a{background:var(--surface-2);}
.compare-col--b{background:var(--accent-100);border:1px solid var(--accent);}
.compare-divider{position:absolute;left:50%;top:12px;bottom:12px;border-left:1px dashed var(--line);}
.cmp-item{margin-bottom:20px;}
.cmp-item:last-child{margin-bottom:0;}
.cmp-label{font-size:15px;font-weight:600;margin-bottom:8px;}
.cmp-bar{height:8px;border-radius:var(--r-pill);background:rgba(20,16,13,.08);overflow:hidden;}
.cmp-bar span{display:block;height:100%;border-radius:var(--r-pill);background:var(--muted);}
.compare-col--b .cmp-bar span{background:var(--accent);}
.cmp-value{font-size:13px;color:var(--muted);margin-top:6px;}
.evidence-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:36px;padding-top:30px;border-top:1px solid var(--line);}
.evidence-item .e-idx{font-family:var(--font-mono);font-size:13px;color:var(--primary);font-weight:700;}
.evidence-item p{font-size:15px;line-height:1.75;color:var(--ink-2);margin-top:8px;}

/* 最新信息 */
.post-grid{margin-top:0;}
.post-card{display:flex;flex-direction:column;height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;color:var(--ink);transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);}
.post-card:hover{transform:translateY(-2px);border-color:var(--primary);box-shadow:var(--sh-2);color:var(--ink);}
.post-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);background-image:linear-gradient(rgba(20,16,13,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(20,16,13,.035) 1px,transparent 1px);background-size:24px 24px;}
.post-thumb img{width:100%;height:100%;object-fit:cover;}
.post-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
.post-body h3{font-size:17px;line-height:1.5;margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s var(--ease);}
.post-card:hover h3{color:var(--primary);}
.post-body p{font-size:14px;line-height:1.7;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);}
.post-meta .rd{color:var(--primary);font-weight:600;}
.post-card:hover .post-meta .rd{color:var(--primary-600);}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:56px 20px;text-align:center;}
.empty-state svg{width:48px;height:48px;stroke:var(--line);fill:none;stroke-width:1.4;}
.empty-state p{font-size:15px;color:var(--muted);}

/* FAQ */
.accordion{background:transparent;border:0;margin:0;}
.accordion-item{border:0;border-bottom:1px solid var(--line);}
.accordion-item:first-child{border-top:1px solid var(--line);}
.accordion-title{position:relative;display:block;padding:20px 52px 20px 16px;font-size:17px;font-weight:700;color:var(--ink);background:transparent;border:0;box-shadow:none;transition:color .2s var(--ease),box-shadow .2s var(--ease);}
.accordion-title:hover{background:transparent;color:var(--primary);}
.accordion-title::before{content:"+";position:absolute;right:10px;top:50%;transform:translateY(-50%);font-size:22px;font-weight:400;line-height:1;color:var(--ink-2);transition:transform .2s var(--ease),color .2s var(--ease);}
.accordion-title[aria-expanded="true"]{color:var(--primary);box-shadow:inset 3px 0 0 var(--primary);}
.accordion-title[aria-expanded="true"]::before{transform:translateY(-50%) rotate(135deg);color:var(--primary);}
.accordion-content{padding:0 52px 18px 16px;background:transparent;border:0;font-size:16px;line-height:1.85;color:var(--ink-2);}
.accordion-content p{margin-bottom:10px;}

/* 表单 */
.contact-wrap{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.point-list{margin:24px 0 30px;display:flex;flex-direction:column;gap:14px;}
.point-list li{display:flex;align-items:flex-start;gap:10px;font-size:16px;color:var(--ink-2);}
.info-block{border-top:1px solid var(--line);padding-top:20px;font-size:14px;line-height:1.9;color:var(--muted);}
.info-block strong{display:block;color:var(--ink);font-size:15px;margin-bottom:6px;}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:32px;}
.field{margin-bottom:20px;}
.field label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px;font-weight:600;}
.field input,.field select,.field textarea{width:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);padding:12px 14px;font-size:16px;line-height:1.6;color:var(--ink);transition:border-color .18s var(--ease),box-shadow .18s var(--ease);}
.field input,.field select{height:46px;padding:0 14px;}
.field textarea{min-height:118px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(180,82,42,.16);}
.field .hint{font-size:13px;color:var(--muted);margin-top:6px;}
.form-note{font-size:13px;color:var(--muted);line-height:1.7;margin-top:16px;}

/* CTA 带 */
.cta-band{background:var(--ink);color:var(--paper);border-radius:var(--r-lg);padding:48px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;}
.cta-band h2{color:var(--paper);}
.cta-band p{color:rgba(247,243,236,.72);font-size:15px;margin-top:10px;max-width:640px;}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(247,243,236,.72);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.site-footer .brand-text{color:var(--paper);}
.site-footer .brand-mark{background:var(--primary);color:var(--paper);}
.footer-about{font-size:14px;line-height:1.85;color:rgba(247,243,236,.72);margin-top:16px;max-width:320px;}
.footer-col h4{font-size:13px;letter-spacing:.06em;color:rgba(247,243,236,.55);font-weight:600;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(247,243,236,.82);display:inline-block;transition:color .18s var(--ease),transform .18s var(--ease);}
.footer-col a:hover{color:var(--primary);transform:translateX(-2px);}
.footer-contact p{font-size:14px;line-height:1.9;color:rgba(247,243,236,.72);}
.footer-bottom{border-top:1px solid rgba(247,243,236,.12);padding:22px 0 28px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:rgba(247,243,236,.6);}
.to-top{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid rgba(247,243,236,.3);background:transparent;color:var(--paper);display:inline-flex;align-items:center;justify-content:center;transition:background-color .2s var(--ease),border-color .2s var(--ease);}
.to-top:hover{background:var(--primary);border-color:var(--primary);color:var(--paper);}

/* 回到顶部浮动按钮 */
.float-top{position:fixed;right:24px;bottom:24px;width:40px;height:40px;border-radius:var(--r-sm);background:var(--surface);border:1px solid var(--line);color:var(--ink-2);display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-1);opacity:0;visibility:hidden;transition:opacity .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease);z-index:70;}
.float-top.is-show{opacity:1;visibility:visible;}
.float-top:hover{background:var(--primary);color:var(--paper);border-color:var(--primary);}

/* 响应式 */
@media (max-width:1023px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .nav-desktop{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .hero{padding:64px 0 72px;}
  .hero::after{width:70%;opacity:.07;}
  .hero-board{margin-top:40px;}
  .board-back{display:none;}
  .metric-strip{grid-template-columns:1fr 1fr;}
  .metric-cell{border-top:1px solid var(--line);}
  .metric-cell:nth-child(1),.metric-cell:nth-child(2){border-top:0;}
  .metric-cell:nth-child(odd){border-left:0;}
  .compare-grid{grid-template-columns:1fr;gap:20px;}
  .compare-divider{display:none;}
  .evidence-row{grid-template-columns:1fr;gap:18px;}
  .contact-wrap{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:639px){
  body{font-size:16px;}
  .grid-container{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .brand-text{font-size:16px;}
  .hero{padding:48px 0 60px;}
  .hero-sub{font-size:17px;}
  .hero-btns .btn{flex:1 1 100%;}
  .trust-row{gap:10px;font-size:12.5px;}
  .trust-row .t-div{display:none;}
  .metric-strip{grid-template-columns:1fr;}
  .metric-cell{border-left:0;border-top:1px solid var(--line);}
  .metric-cell:first-child{border-top:0;}
  .metric-num{font-size:36px;}
  .board-num{font-size:30px;}
  .board-cell{padding:16px 14px;}
  .cta-band{padding:32px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .service-item{min-height:auto;padding:16px;}
  .form-card{padding:22px;}
}

/* roulang page: article */
:root{
  --ink:#14100D;
  --ink-2:#3A342E;
  --muted:#7A736A;
  --paper:#F7F3EC;
  --surface:#FFFFFF;
  --surface-2:#EFE9DF;
  --line:#E2D9CB;
  --primary:#B4522A;
  --primary-600:#933F1E;
  --primary-100:#F6E7DF;
  --accent:#1F6B57;
  --accent-100:#E3EFEA;
  --data:#C08A16;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,16,13,.06);
  --sh-2:0 12px 32px -12px rgba(20,16,13,.18);
  --sh-3:0 22px 48px -18px rgba(20,16,13,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-mono:"Roboto Mono","SFMono-Regular",ui-monospace,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.88;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-radius:var(--r-md);}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--primary-600);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;line-height:1.3;}
p{margin:0 0 1.15em;}
ul,ol{margin:0 0 1.15em;padding-left:22px;}
li{margin-bottom:.6em;}
.grid-container{max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px;width:100%;}
.section{padding-top:96px;padding-bottom:96px;}
.section-tight{padding-top:64px;padding-bottom:64px;}
.muted{color:var(--muted);}
.mono{font-family:var(--font-mono);}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  border-top:2px solid var(--primary);
  background:transparent;
  transition:background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(247,243,236,.94);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  box-shadow:0 1px 0 var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;}
.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary);color:var(--paper);
  font-family:var(--font-mono);font-size:14px;font-weight:700;letter-spacing:.02em;
  border-radius:8px;
}
.brand-text{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.01em;}
.nav-desktop{display:flex;align-items:center;gap:32px;}
.nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--ink-2);
  letter-spacing:.02em;padding:6px 0;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:0;height:2px;width:0;
  background:var(--primary);transform:translateX(-50%);
  transition:width .18s var(--ease);
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--ink);}
.nav-link.is-active::after{width:20px;height:3px;}
.nav-actions{display:flex;align-items:center;gap:16px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all .2s var(--ease);text-align:center;
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.btn-primary{background:var(--primary);color:var(--paper);}
.btn-primary:hover{background:var(--primary-600);color:var(--paper);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--primary-100);color:var(--primary-600);}
.nav-cta{height:40px;padding:0 22px;border-radius:var(--r-pill);font-size:15px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary);}
.link-arrow .ico{width:18px;height:18px;transition:transform .18s var(--ease);}
.link-arrow:hover .ico{transform:translateX(4px);}
.ico{width:20px;height:20px;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}

.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--surface);
  border-radius:var(--r-sm);padding:0;cursor:pointer;position:relative;
}
.nav-toggle span{
  display:block;width:20px;height:2px;background:var(--ink);margin:4px auto;border-radius:2px;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-drawer{
  display:none;position:fixed;inset:76px 0 0 0;background:var(--paper);z-index:55;
  padding:8px 16px 32px;overflow-y:auto;
}
.nav-drawer.is-open{display:block;}
.nav-drawer a.d-item{
  display:block;font-size:18px;color:var(--ink);line-height:56px;
  border-bottom:1px solid var(--line);
}
.nav-drawer a.d-item.is-active{color:var(--primary);font-weight:700;}
.nav-drawer .d-cta{margin-top:24px;width:100%;}

/* ---------- Breadcrumb ---------- */
.crumb-wrap{border-bottom:1px solid var(--line);background:var(--paper);}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-size:13px;color:var(--muted);padding:18px 0;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--line);}
.crumb .cur{color:var(--ink);}

/* ---------- Article hero ---------- */
.article-hero{
  position:relative;background:var(--paper);
  background-image:
    linear-gradient(rgba(20,16,13,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(20,16,13,.035) 1px,transparent 1px);
  background-size:24px 24px,24px 24px;
  padding:56px 0 48px;
  overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;top:-40px;right:-60px;width:460px;height:340px;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.13;border-radius:var(--r-lg);pointer-events:none;
}
.article-hero .grid-container{position:relative;z-index:1;}
.article-badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  background:var(--primary-100);color:var(--primary);
  font-size:12px;font-weight:600;border-radius:4px;
}
.article-title{
  font-size:clamp(28px,3.6vw,42px);line-height:1.3;font-weight:800;
  max-width:900px;margin:18px 0 20px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13px;color:var(--muted);
  padding-top:18px;border-top:1px solid var(--line);max-width:900px;
}
.article-meta .vline{width:1px;height:14px;background:var(--line);display:inline-block;}
.article-lead{
  max-width:820px;font-size:18px;line-height:1.8;color:var(--ink-2);margin-top:18px;
}

/* ---------- Article layout ---------- */
.article-body{padding:56px 0 96px;}
.layout{display:flex;gap:48px;align-items:flex-start;}
.main-col{flex:1 1 auto;min-width:0;max-width:800px;}
.side-col{flex:0 0 340px;width:340px;position:sticky;top:104px;}

.article-content{font-size:17px;line-height:1.9;color:var(--ink-2);text-align:left;}
.article-content p{margin:0 0 1.15em;}
.article-content h2{
  position:relative;font-size:24px;line-height:1.4;color:var(--ink);
  margin:44px 0 14px;padding-left:16px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  background:var(--primary);border-radius:2px;
}
.article-content h3{font-size:19px;line-height:1.5;color:var(--ink);margin:32px 0 10px;}
.article-content h4{font-size:17px;line-height:1.5;color:var(--ink);margin:24px 0 8px;}
.article-content ul,.article-content ol{padding-left:22px;}
.article-content li::marker{color:var(--primary);font-weight:700;}
.article-content ul li{list-style:none;position:relative;padding-left:2px;}
.article-content ul li::before{
  content:"";position:absolute;left:-16px;top:.72em;width:6px;height:6px;
  background:var(--primary);border-radius:1px;
}
.article-content blockquote{
  margin:24px 0;padding:20px 24px;background:var(--surface-2);
  border-left:4px solid var(--accent);border-radius:var(--r-sm);color:var(--ink-2);
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:var(--r-md);width:100%;height:auto;margin:22px 0 8px;}
.article-content figure{margin:26px 0;}
.article-content figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.article-content a{color:var(--primary);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;}
.article-content a:hover{text-decoration-thickness:2px;}
.article-content table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;
}
.article-content thead th{
  background:var(--ink);color:var(--paper);text-align:left;font-weight:600;
  padding:12px 16px;border:none;font-size:14px;
}
.article-content tbody td{padding:12px 16px;border-bottom:1px solid var(--line);color:var(--ink-2);}
.article-content tbody tr:nth-child(even){background:var(--surface-2);}
.article-content code{
  font-family:var(--font-mono);font-size:14px;background:var(--surface-2);
  padding:2px 6px;border-radius:6px;color:var(--primary-600);
}
.article-content pre{
  background:var(--surface-2);border-radius:var(--r-sm);padding:12px 16px;
  overflow-x:auto;font-family:var(--font-mono);font-size:14px;line-height:1.7;
  border:1px solid var(--line);
}
.article-content pre code{background:none;padding:0;}
.article-content hr{border:none;border-top:1px solid var(--line);margin:36px 0;}

.empty-state{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state .ico{width:48px;height:48px;stroke:var(--line);margin:0 auto 16px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:18px;}

/* ---------- Side cards ---------- */
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-1);margin-bottom:20px;
}
.side-card h3{font-size:15px;letter-spacing:.04em;color:var(--ink);margin-bottom:14px;}
.toc-list{list-style:none;margin:0;padding:0;}
.toc-list li{margin:0;}
.toc-list a{
  display:block;font-size:14px;color:var(--ink-2);padding:9px 0 9px 12px;
  border-left:3px solid transparent;line-height:1.5;
}
.toc-list a:hover,.toc-list a.is-current{
  color:var(--primary);border-left-color:var(--primary);background:var(--primary-100);
}
.toc-list .num{
  font-family:var(--font-mono);font-size:12px;color:var(--muted);margin-right:8px;
}
.related-item{
  display:block;padding:12px 0;border-bottom:1px dashed var(--line);
}
.related-item:last-child{border-bottom:none;padding-bottom:0;}
.related-item .t{font-size:15px;font-weight:600;color:var(--ink);line-height:1.5;}
.related-item:hover .t{color:var(--primary);}
.related-item .d{font-size:12px;color:var(--muted);font-family:var(--font-mono);margin-top:4px;}
.fallback-note{font-size:14px;color:var(--muted);margin:0;}
.cta-card{
  background:var(--primary-100);border:1px solid #EBD5C8;border-radius:var(--r-md);
  padding:24px;margin-bottom:20px;
}
.cta-card h3{font-size:17px;margin-bottom:10px;}
.cta-card p{font-size:14px;color:var(--ink-2);line-height:1.7;margin-bottom:16px;}
.cta-card .btn{width:100%;}

/* ---------- Article foot ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:40px 0 0;padding-top:28px;border-top:1px solid var(--line);}
.tag-pill{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-pill);
  font-size:14px;color:var(--ink-2);background:var(--surface);transition:all .2s var(--ease);
}
.tag-pill:hover{background:var(--primary-100);border-color:var(--primary);color:var(--primary);}
.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px;}
.pn-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--sh-1);transition:all .2s var(--ease);
}
.pn-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--sh-2);}
.pn-card .lab{font-size:12px;color:var(--muted);letter-spacing:.06em;margin-bottom:8px;display:block;}
.pn-card .t{font-size:16px;font-weight:600;color:var(--ink);line-height:1.5;}
.pn-card:hover .t{color:var(--primary);}
.back-col{margin-top:28px;}

/* ---------- Bottom CTA band ---------- */
.cta-band{background:var(--ink);color:var(--paper);padding:72px 0;}
.cta-band h2{color:var(--paper);font-size:clamp(24px,3vw,32px);}
.cta-band p{color:rgba(247,243,236,.72);font-size:16px;line-height:1.8;max-width:640px;}
.cta-band .band{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band .btn-primary{background:var(--primary);color:#fff;}
.cta-band .btn-primary:hover{background:var(--primary-600);color:#fff;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:rgba(247,243,236,.72);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-col h4{
  font-size:13px;letter-spacing:.06em;color:rgba(247,243,236,.6);
  font-weight:600;margin-bottom:16px;
}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:rgba(247,243,236,.82);font-size:14px;display:inline-block;transition:all .18s var(--ease);}
.footer-col a:hover{color:var(--primary);transform:translateX(2px);}
.site-footer .brand-text{color:var(--paper);}
.site-footer .brand-mark{background:var(--primary);color:#fff;}
.footer-about{font-size:14px;line-height:1.8;color:rgba(247,243,236,.7);margin:16px 0 0;max-width:340px;}
.footer-contact p{font-size:14px;margin:0 0 6px;color:rgba(247,243,236,.7);}
.footer-bottom{
  border-top:1px solid rgba(247,243,236,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 0;font-size:13px;color:rgba(247,243,236,.6);flex-wrap:wrap;
}
.to-top{
  width:40px;height:40px;border:1px solid rgba(247,243,236,.28);border-radius:var(--r-sm);
  display:inline-flex;align-items:center;justify-content:center;color:var(--paper);
  transition:all .2s var(--ease);
}
.to-top:hover{background:var(--primary);border-color:var(--primary);color:#fff;}

/* ---------- Responsive ---------- */
@media screen and (max-width:1023px){
  .nav-desktop{display:none;}
  .nav-toggle{display:block;}
  .nav-cta{display:none;}
  .grid-container{padding-left:20px;padding-right:20px;}
  .section{padding-top:72px;padding-bottom:72px;}
  .layout{flex-direction:column;gap:32px;}
  .side-col{position:static;width:100%;flex:1 1 auto;}
  .main-col{max-width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .article-hero::before{width:320px;height:240px;opacity:.1;}
  .article-body{padding:40px 0 72px;}
}
@media screen and (max-width:639px){
  body{font-size:16px;}
  .grid-container{padding-left:16px;padding-right:16px;}
  .section{padding-top:56px;padding-bottom:56px;}
  .nav-wrap{height:68px;}
  .brand-text{font-size:17px;}
  .nav-drawer{inset:68px 0 0 0;}
  .article-hero{padding:36px 0 32px;}
  .article-title{margin:14px 0 16px;}
  .article-meta{gap:10px;}
  .article-lead{font-size:16px;}
  .prev-next{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:56px 0;}
  .article-content table{font-size:14px;}
  .article-content thead th,.article-content tbody td{padding:10px 12px;}
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category1 */
:root{
  --ink:#14100D;
  --ink-2:#3A342E;
  --muted:#7A736A;
  --paper:#F7F3EC;
  --surface:#FFFFFF;
  --surface-2:#EFE9DF;
  --line:#E2D9CB;
  --primary:#B4522A;
  --primary-600:#933F1E;
  --primary-100:#F6E7DF;
  --accent:#1F6B57;
  --accent-100:#E3EFEA;
  --data:#C08A16;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,16,13,.06);
  --sh-2:0 12px 32px -12px rgba(20,16,13,.18);
  --sh-3:0 22px 48px -18px rgba(20,16,13,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
}
*,*::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:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.88;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;color:var(--ink);line-height:1.35;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--primary-600);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus{outline:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.grid-container{max-width:var(--container);padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;width:100%;}
.mono{font-family:"Roboto Mono","SFMono-Regular",ui-monospace,Menlo,monospace;}
.ico{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,243,236,0);
  border-top:1px solid var(--primary);
  border-bottom:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(247,243,236,.94);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px -16px rgba(20,16,13,.35);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;min-height:74px;gap:24px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary);
  color:#FBF7F1;
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  border-radius:4px;
  font-family:"Roboto Mono",ui-monospace,monospace;
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.01em;}
.nav-desktop{display:flex;align-items:center;gap:32px;}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  letter-spacing:.02em;
  color:var(--ink-2);
  padding:6px 0;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;right:50%;bottom:0;
  height:2px;background:var(--primary);
  transition:left .18s var(--ease),right .18s var(--ease);
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{left:0;right:0;}
.nav-link.is-active{color:var(--ink);font-weight:700;}
.nav-link.is-active::after{left:calc(50% - 10px);right:calc(50% - 10px);height:3px;background:var(--primary);}
.nav-actions{display:flex;align-items:center;gap:16px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--surface);
  padding:0;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink-2);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-drawer{
  position:fixed;
  inset:74px 0 0 0;
  background:var(--paper);
  z-index:55;
  padding:8px 0 32px;
  overflow-y:auto;
  transform:translateY(-8px);
  opacity:0;
  pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease);
  display:none;
}
.nav-drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
.drawer-link{
  display:block;
  padding:0 24px;
  line-height:56px;
  font-size:18px;
  color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer-link.is-active{color:var(--primary);font-weight:700;}
.drawer-cta{padding:24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;
  padding:0 24px;
  font-size:16px;
  font-weight:600;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  cursor:pointer;
  text-align:center;
  transition:background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--primary);color:#FBF7F1;}
.btn-primary:hover{background:var(--primary-600);color:#FBF7F1;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-100);color:var(--primary-600);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(0);}
.btn-block{width:100%;}
.nav-cta{height:40px;padding:0 22px;font-size:15px;border-radius:var(--r-pill);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary);}
.link-arrow .ico{width:16px;height:16px;transition:transform .2s var(--ease);}
.link-arrow:hover .ico{transform:translateX(4px);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 8px;
  font-size:12px;line-height:1;font-weight:600;
  border-radius:4px;
  background:var(--primary-100);color:var(--primary);
}
.badge-accent{background:var(--accent-100);color:var(--accent);}
.badge-neutral{background:var(--surface-2);color:var(--ink-2);}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  font-size:14px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--surface);color:var(--ink-2);
}
.chip:hover{border-color:var(--primary);color:var(--primary);}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--muted);margin-bottom:20px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--ink);font-weight:600;}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;
  overflow:hidden;
  padding:44px 0 64px;
  border-bottom:1px solid var(--line);
  background-color:var(--paper);
  background-image:
    linear-gradient(rgba(20,16,13,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(20,16,13,.035) 1px,transparent 1px);
  background-size:24px 24px;
}
.cat-hero::after{
  content:"";
  position:absolute;
  top:0;right:-40px;bottom:0;
  width:52%;
  background:url('/assets/images/backpic/back-1.png') right center/contain no-repeat;
  opacity:.14;
  pointer-events:none;
}
.cat-hero .grid-container{position:relative;z-index:2;}
.cat-hero h1{
  font-size:clamp(30px,4.6vw,52px);
  line-height:1.24;
  font-weight:800;
  max-width:820px;
}
.cat-hero h1 .h1-accent{color:var(--primary);}
.hero-lead{
  max-width:760px;
  margin-top:18px;
  font-size:18px;
  line-height:1.8;
  color:var(--ink-2);
}
.hero-metrics{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  margin-top:30px;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:rgba(255,255,255,.72);
  overflow:hidden;
}
.hero-metric{
  flex:1 1 190px;
  padding:18px 24px;
  border-right:1px solid var(--line);
}
.hero-metric:last-child{border-right:none;}
.hero-metric .num{
  font-family:"Roboto Mono",ui-monospace,monospace;
  font-size:30px;
  font-weight:700;
  color:var(--primary);
  line-height:1.1;
}
.hero-metric .num small{font-size:13px;color:var(--muted);font-weight:500;margin-left:4px;}
.hero-metric .cap{font-size:13px;color:var(--muted);margin-top:6px;}

/* ---------- 板块 ---------- */
.section{padding:96px 0;}
.section-tight{padding:56px 0;}
.section-alt{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.3;}
.section-head .sub{font-size:14px;color:var(--muted);margin-top:10px;}

/* ---------- 正文 + 侧栏布局 ---------- */
.cat-layout{align-items:flex-start;}
.cat-content{min-width:0;}
.article-block{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:36px 38px;
  margin-bottom:28px;
  scroll-margin-top:110px;
}
.article-block h2{
  position:relative;
  font-size:clamp(20px,2.4vw,26px);
  line-height:1.4;
  padding-left:14px;
  margin-bottom:14px;
}
.article-block h2::before{
  content:"";
  position:absolute;
  left:0;top:.15em;bottom:.15em;
  width:4px;
  background:var(--primary);
  border-radius:2px;
}
.article-block h3{font-size:19px;line-height:1.5;margin:26px 0 10px;}
.prose p{font-size:17px;line-height:1.88;color:var(--ink-2);}
.prose ul,.prose ol{margin:4px 0 18px;padding-left:2px;}
.prose li{
  position:relative;
  padding-left:20px;
  margin-bottom:.6em;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
}
.prose li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:6px;height:6px;
  background:var(--primary);
  border-radius:1px;
}
.fact-list{border-top:1px solid var(--line);margin-top:8px;}
.fact-list li{
  display:flex;gap:16px;align-items:flex-start;
  padding:16px 0;
  border-bottom:1px solid var(--line);
  font-size:16px;color:var(--ink-2);
}
.fact-list li:hover{background:var(--surface-2);}
.fact-num{
  font-family:"Roboto Mono",ui-monospace,monospace;
  font-size:14px;font-weight:700;color:var(--primary);
  min-width:28px;padding-top:2px;
}
.fact-list h4{font-size:16px;margin-bottom:2px;}
.fact-list p{font-size:14px;color:var(--muted);line-height:1.7;margin:0;}

/* 图文块 */
.figure-block{display:flex;gap:28px;align-items:center;margin:26px 0 6px;}
.figure-block .fig-media{flex:0 0 46%;max-width:46%;}
.figure-block .fig-text{flex:1 1 auto;}
.figure-block.is-reverse{flex-direction:row-reverse;}
.fig-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--surface-2);
}
.fig-cap{font-size:13px;color:var(--muted);margin-top:8px;text-align:center;}

/* 提示条 */
.note{
  border-left:4px solid var(--accent);
  background:var(--accent-100);
  border-radius:var(--r-sm);
  padding:18px 22px;
  font-size:15.5px;
  line-height:1.8;
  color:var(--ink-2);
  margin:22px 0;
}
.note strong{color:var(--accent);}

/* ---------- 侧栏 ---------- */
.cat-side{min-width:0;}
.side-sticky{position:sticky;top:100px;}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:24px;
  margin-bottom:20px;
}
.side-title{font-size:15px;letter-spacing:.02em;margin-bottom:14px;color:var(--ink);}
.toc-list li{border-bottom:1px dashed var(--line);}
.toc-list li:last-child{border-bottom:none;}
.toc-link{
  position:relative;
  display:block;
  padding:11px 0 11px 14px;
  font-size:15px;
  color:var(--ink-2);
}
.toc-link::before{
  content:"";
  position:absolute;left:0;top:14px;bottom:14px;
  width:3px;background:transparent;border-radius:2px;
  transition:background .2s var(--ease);
}
.toc-link:hover{color:var(--primary);}
.toc-link.is-current{color:var(--primary);font-weight:700;}
.toc-link.is-current::before{background:var(--primary);}
.key-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);}
.key-list li:last-child{border-bottom:none;padding-bottom:0;}
.key-num{
  font-family:"Roboto Mono",ui-monospace,monospace;
  font-size:13px;font-weight:700;color:var(--primary);
  padding-top:3px;
}
.key-list h4{font-size:15px;margin-bottom:2px;}
.key-list p{font-size:13.5px;line-height:1.7;color:var(--muted);margin:0;}
.side-cta{
  background:var(--primary-100);
  border:1px solid rgba(180,82,42,.22);
  border-radius:var(--r-md);
  padding:24px;
}
.side-cta h3{font-size:17px;margin-bottom:8px;}
.side-cta p{font-size:14px;line-height:1.75;color:var(--ink-2);margin-bottom:16px;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{
  border-left:3px solid transparent;
  border-bottom:1px solid var(--line);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item.is-open{border-left-color:var(--primary);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;
  border:none;
  padding:20px 18px;
  text-align:left;
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  cursor:pointer;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-item.is-open .faq-q{color:var(--primary);}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink-2);
  transition:transform .2s var(--ease),background .2s var(--ease);
}
.faq-icon::before{top:7px;left:0;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.is-open .faq-icon::before{background:var(--primary);}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);background:var(--primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease);}
.faq-a-inner{padding:0 18px 20px;font-size:16px;line-height:1.85;color:var(--ink-2);}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--ink);
  color:rgba(247,243,236,.78);
  border-radius:var(--r-lg);
  padding:48px;
  display:flex;
  gap:36px;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
}
.cta-band h2{color:#FBF7F1;font-size:clamp(22px,2.6vw,30px);line-height:1.35;margin-bottom:10px;}
.cta-band p{font-size:16px;line-height:1.8;color:rgba(247,243,236,.72);max-width:560px;margin:0;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-outline{color:#FBF7F1;border-color:rgba(247,243,236,.5);}
.cta-band .btn-outline:hover{background:rgba(247,243,236,.12);color:#FBF7F1;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(247,243,236,.72);padding:72px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-col .brand{color:#FBF7F1;margin-bottom:16px;}
.footer-col .brand:hover{color:#FBF7F1;}
.footer-col .brand-mark{background:var(--primary);}
.footer-about{font-size:14px;line-height:1.8;color:rgba(247,243,236,.66);margin:0;}
.footer-contact p{font-size:14px;line-height:1.9;color:rgba(247,243,236,.66);margin:0;}
.footer-col h4{
  font-size:13px;
  letter-spacing:.06em;
  color:rgba(247,243,236,.5);
  font-weight:600;
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{
  font-size:14.5px;
  color:rgba(247,243,236,.78);
  display:inline-block;
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.footer-col ul a:hover{color:var(--primary);transform:translateX(2px);}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid rgba(247,243,236,.12);
  padding:24px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(247,243,236,.55);
}
.to-top{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(247,243,236,.32);
  border-radius:var(--r-sm);
  color:rgba(247,243,236,.8);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.to-top:hover{background:var(--primary);border-color:var(--primary);color:#FBF7F1;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .nav-desktop{display:none;}
  .nav-toggle{display:flex;}
  .nav-drawer{display:block;}
  .nav-cta{display:none;}
  .section{padding:72px 0;}
  .cat-hero{padding:32px 0 48px;}
  .cat-hero::after{width:72%;opacity:.1;}
  .side-sticky{position:static;}
  .article-block{padding:30px 26px;}
  .figure-block{flex-direction:column;align-items:stretch;}
  .figure-block.is-reverse{flex-direction:column;}
  .figure-block .fig-media{flex:1 1 auto;max-width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:36px;gap:24px;}
}
@media screen and (max-width:639px){
  body{font-size:16px;}
  .grid-container{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .section-tight{padding:40px 0;}
  .hero-metric{flex:1 1 100%;border-right:none;border-bottom:1px solid var(--line);padding:16px 20px;}
  .hero-metric:last-child{border-bottom:none;}
  .article-block{padding:24px 18px;border-radius:var(--r-md);}
  .prose p{font-size:16px;}
  .faq-q{font-size:16px;padding:18px 12px;}
  .faq-a-inner{padding:0 12px 18px;font-size:15.5px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-band{padding:28px 22px;border-radius:var(--r-md);}
  .cta-band .cta-actions{width:100%;}
  .cta-band .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category2 */
:root{
  --ink:#14100D;
  --ink-2:#3A342E;
  --muted:#7A736A;
  --paper:#F7F3EC;
  --surface:#FFFFFF;
  --surface-2:#EFE9DF;
  --line:#E2D9CB;
  --primary:#B4522A;
  --primary-600:#933F1E;
  --primary-100:#F6E7DF;
  --accent:#1F6B57;
  --accent-100:#E3EFEA;
  --data:#C08A16;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,16,13,.06);
  --sh-2:0 12px 32px -12px rgba(20,16,13,.18);
  --sh-3:0 22px 48px -18px rgba(20,16,13,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-mono:"Roboto Mono","SFMono-Regular",ui-monospace,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.88;
  color:var(--ink-2);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden;}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;letter-spacing:.01em;}
h1{font-size:clamp(30px,4.6vw,52px);line-height:1.24;font-weight:800;}
h2{font-size:clamp(24px,3vw,34px);line-height:1.3;}
h3{font-size:20px;line-height:1.4;}
h4{font-size:17px;line-height:1.5;}
p{margin:0 0 1.15em;}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--primary-600);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:var(--primary-100);color:var(--ink);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

.grid-container{max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px;width:100%;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--surface{background:var(--surface-2);}
.section--dark{background:var(--ink);color:rgba(247,243,236,.78);}
.section--dark h2,.section--dark h3,.section--dark h4{color:var(--paper);}
.hairline{height:1px;background:var(--line);border:0;margin:0;}

.ico{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto;}
.ico-lg{width:48px;height:48px;stroke-width:1.4;}

/* ============ header ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  border-top:2px solid var(--primary);
  background:transparent;
  transition:background .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(247,243,236,.94);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 24px -18px rgba(20,16,13,.5);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary);
  color:#FBF7F1;
  border-radius:6px;
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:700;
  letter-spacing:.02em;
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.01em;}
.nav-desktop{display:flex;align-items:center;gap:32px;}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  letter-spacing:.02em;
  color:var(--ink-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:50%;bottom:0;
  width:0;height:2px;background:var(--primary);
  transform:translateX(-50%);
  transition:width .18s var(--ease);
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--ink);}
.nav-link.is-active::after{width:20px;height:3px;}
.nav-actions{display:flex;align-items:center;gap:16px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:16px;font-weight:600;line-height:1;
  padding:0 24px;height:46px;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--primary);color:#FBF7F1;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--primary-600);color:#FBF7F1;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;border-color:var(--primary);color:var(--primary);}
.btn-ghost:hover{background:var(--primary-100);color:var(--primary-600);}
.btn-dark{background:var(--primary);color:#FBF7F1;}
.nav-cta{height:40px;padding:0 22px;font-size:15px;border-radius:var(--r-pill);}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--primary);
}
.link-arrow .ico{transition:transform .2s var(--ease);}
.link-arrow:hover .ico{transform:translateX(4px);}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-sm);
  cursor:pointer;
  padding:0;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.nav-drawer{
  display:none;
  position:fixed;inset:76px 0 0 0;
  background:var(--paper);
  z-index:55;
  padding:8px 24px 32px;
  overflow-y:auto;
  transform:translateY(-8px);
  opacity:0;
  pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.nav-drawer.is-open{display:block;opacity:1;transform:translateY(0);pointer-events:auto;}
.nav-drawer a{
  display:block;
  font-size:18px;line-height:56px;
  color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.nav-drawer a.is-active{color:var(--primary);font-weight:700;}
.nav-drawer .btn{width:100%;margin-top:24px;display:flex;}

/* ============ breadcrumb ============ */
.crumbs{padding-top:112px;}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--muted);}
.crumb-list li{display:flex;align-items:center;gap:12px;}
.crumb-list li::after{content:"/";color:var(--line);}
.crumb-list li:last-child::after{content:none;}
.crumb-list a{color:var(--muted);}
.crumb-list a:hover{color:var(--primary);}
.crumb-list .current{color:var(--ink);}

/* ============ hero ============ */
.hero{
  position:relative;
  padding:36px 0 88px;
  background-color:var(--paper);
  background-image:linear-gradient(rgba(20,16,13,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(20,16,13,.035) 1px,transparent 1px);
  background-size:24px 24px;
  border-bottom:1px solid var(--line);
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary-100);color:var(--primary-600);
  font-size:13px;font-weight:600;
  padding:6px 12px;border-radius:6px;
  margin-bottom:20px;
}
.hero h1{margin-bottom:18px;}
.hero-lead{font-size:18px;line-height:1.8;color:var(--ink-2);max-width:600px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.trust-row{display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);}
.trust-item .ico{width:20px;height:20px;color:var(--primary);}
.trust-div{width:1px;height:20px;background:var(--line);}

.hero-visual{display:flex;flex-direction:column;gap:18px;}
.hero-figure{
  position:relative;
  margin:0;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-figure figcaption{
  padding:12px 18px;
  font-size:13px;color:var(--muted);
  border-top:1px solid var(--line);
  background:var(--surface);
}
.stat-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.stat-cell{padding:18px 16px;border-right:1px solid var(--line);}
.stat-cell:last-child{border-right:0;}
.stat-num{font-family:var(--font-mono);font-size:30px;line-height:1.2;font-weight:700;color:var(--primary);}
.stat-num .unit{font-size:13px;color:var(--muted);margin-left:4px;font-weight:400;}
.stat-cell p{margin:4px 0 0;font-size:13px;color:var(--ink-2);line-height:1.6;}

/* ============ section head ============ */
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:42px;}
.sec-head h2{position:relative;padding-left:16px;}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;background:var(--primary);border-radius:2px;
}
.sec-note{font-size:14px;color:var(--muted);margin:0;max-width:420px;}

/* ============ timeline ============ */
.timeline{position:relative;padding-top:6px;}
.timeline::before{
  content:"";position:absolute;left:27px;top:10px;bottom:14px;width:2px;background:var(--line);
}
.tl-item{position:relative;padding-left:78px;margin-bottom:22px;}
.tl-item:last-child{margin-bottom:0;}
.tl-node{
  position:absolute;left:14px;top:8px;
  width:28px;height:28px;border-radius:50%;
  background:var(--paper);
  border:2px solid var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:11px;font-weight:700;color:var(--primary);
  z-index:1;
}
.tl-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.tl-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--sh-2);}
.tl-item:nth-child(even) .tl-card{background:var(--surface-2);}
.tl-card h3{margin-bottom:8px;font-size:19px;}
.tl-card p{margin-bottom:10px;font-size:16px;color:var(--ink-2);}
.tl-card p:last-child{margin-bottom:0;}
.tl-tag{
  display:inline-block;
  font-size:12px;font-family:var(--font-mono);
  color:var(--accent);background:var(--accent-100);
  padding:3px 10px;border-radius:var(--r-sm);
  margin-bottom:10px;
}

/* ============ zone list ============ */
.zone-item{
  display:flex;align-items:flex-start;gap:16px;
  padding:20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  height:100%;
  transition:border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.zone-item:hover{border-color:var(--primary);transform:translateY(-2px);}
.zone-no{
  font-family:var(--font-mono);font-size:14px;font-weight:700;
  color:var(--primary);background:var(--primary-100);
  border-radius:6px;padding:4px 8px;line-height:1.4;flex:0 0 auto;margin-top:2px;
}
.zone-body h3{font-size:18px;margin-bottom:6px;}
.zone-body p{margin:0;font-size:14px;line-height:1.75;color:var(--ink-2);}
.zone-arrow{margin-left:auto;color:var(--primary);align-self:center;transition:transform .2s var(--ease);}
.zone-item:hover .zone-arrow{transform:translateX(4px);}

/* ============ checklist ============ */
.check-list{margin-top:8px;}
.check-list li{
  display:flex;align-items:flex-start;gap:14px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
  font-size:16px;color:var(--ink-2);
}
.check-list li:first-child{padding-top:4px;}
.check-list li:last-child{border-bottom:0;}
.check-box{
  flex:0 0 auto;width:22px;height:22px;margin-top:5px;
  border:1px solid var(--primary);border-radius:6px;
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);background:var(--primary-100);
}
.check-box .ico{width:14px;height:14px;stroke-width:2.4;}
.note-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-2);
  overflow:hidden;
}
.note-card img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.note-card .note-body{padding:24px;}
.note-card h3{font-size:19px;margin-bottom:10px;}
.note-card p{font-size:15px;color:var(--ink-2);}
.note-meta{
  display:flex;gap:12px;align-items:center;
  font-size:13px;color:var(--muted);
  border-top:1px solid var(--line);
  padding-top:14px;margin-top:16px;
}

/* ============ tips strip ============ */
.tips-row{display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
.tip{
  padding:8px 28px;
  border-left:1px solid var(--line);
}
.tip:first-child{border-left:0;padding-left:0;}
.tip-no{font-family:var(--font-mono);font-size:13px;color:var(--primary);font-weight:700;letter-spacing:.08em;}
.tip h4{margin:8px 0 6px;font-size:17px;}
.tip p{margin:0;font-size:14px;color:var(--muted);line-height:1.7;}

/* ============ faq ============ */
.accordion{border:0;background:transparent;}
.accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;}
.accordion-title{
  position:relative;
  padding:18px 48px 18px 0;
  font-size:17px;font-weight:700;color:var(--ink);
  border:0;background:transparent;
  transition:color .2s var(--ease),padding .2s var(--ease);
}
.accordion-title::before{content:none !important;display:none !important;}
.accordion-title:hover{color:var(--primary);}
.accordion-content{
  padding:0 0 18px 0;
  border:0;background:transparent;
  font-size:16px;line-height:1.85;color:var(--ink-2);
}
.accordion-content p:last-child{margin-bottom:0;}
.faq-ico{
  position:absolute;right:6px;top:50%;
  transform:translateY(-50%);
  width:26px;height:26px;
  display:flex;align-items:center;justify-content:center;
  color:var(--ink-2);
  transition:transform .2s var(--ease),color .2s var(--ease);
}
.faq-ico svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;}
.accordion-item.is-active .accordion-title{color:var(--primary);padding-left:16px;}
.accordion-item.is-active .accordion-title::after{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;background:var(--primary);border-radius:2px;
}
.accordion-item.is-active .faq-ico{transform:translateY(-50%) rotate(45deg);color:var(--primary);}

/* ============ cta band ============ */
.cta-band{
  position:relative;
  background-color:var(--ink);
  background-image:linear-gradient(rgba(20,16,13,.93),rgba(20,16,13,.97)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  color:rgba(247,243,236,.78);
  padding:80px 0;
}
.cta-band h2{color:#FBF7F1;margin-bottom:14px;}
.cta-band p{font-size:16px;color:rgba(247,243,236,.75);margin-bottom:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-actions .btn-ghost{border-color:rgba(247,243,236,.55);color:#FBF7F1;}
.cta-actions .btn-ghost:hover{background:rgba(247,243,236,.12);color:#FBF7F1;}

/* ============ footer ============ */
.site-footer{background:var(--ink);color:rgba(247,243,236,.72);padding:72px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-col h4{
  font-size:13px;letter-spacing:.06em;color:rgba(247,243,236,.55);
  margin-bottom:16px;font-weight:600;
}
.site-footer .brand{color:#FBF7F1;}
.site-footer .brand:hover{color:#FBF7F1;}
.site-footer .brand-text{color:#FBF7F1;}
.footer-about{font-size:14px;line-height:1.8;color:rgba(247,243,236,.7);margin:16px 0 0;}
.footer-contact p{margin:0 0 6px;font-size:13px;color:rgba(247,243,236,.7);}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{color:rgba(247,243,236,.72);font-size:14px;display:inline-block;transition:color .18s var(--ease),transform .18s var(--ease);}
.footer-col ul a:hover{color:var(--primary);transform:translateX(-2px);}
.footer-bottom{
  border-top:1px solid rgba(247,243,236,.12);
  padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(247,243,236,.6);
}
.to-top{
  width:40px;height:40px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(247,243,236,.35);
  border-radius:var(--r-sm);
  color:rgba(247,243,236,.8);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.to-top:hover{background:var(--primary);border-color:var(--primary);color:#FBF7F1;}

/* ============ responsive ============ */
@media (max-width:1023px){
  .nav-desktop{display:none;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .section{padding:72px 0;}
  .hero{padding:24px 0 64px;}
  .crumbs{padding-top:104px;}
  .hero-visual{margin-top:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .tips-row{grid-template-columns:1fr;}
  .tip{border-left:0;border-top:1px solid var(--line);padding:20px 0;}
  .tip:first-child{border-top:0;padding-top:0;}
  .cta-band{padding:64px 0;}
}
@media (max-width:639px){
  body{font-size:16px;}
  .grid-container{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .nav-wrap{height:68px;}
  .nav-drawer{inset:68px 0 0 0;}
  .crumbs{padding-top:92px;}
  .hero{padding:16px 0 48px;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .trust-row{gap:10px;}
  .trust-div{display:none;}
  .stat-grid{grid-template-columns:1fr 1fr;}
  .stat-cell{border-bottom:1px solid var(--line);}
  .stat-cell:nth-child(2){border-right:0;}
  .stat-cell:nth-child(3){border-right:0;border-bottom:0;grid-column:span 2;}
  .stat-num{font-size:28px;}
  .timeline::before{left:15px;}
  .tl-item{padding-left:52px;}
  .tl-node{left:2px;}
  .tl-card{padding:20px;}
  .sec-head{margin-bottom:28px;}
  .sec-note{max-width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .zone-item{flex-wrap:wrap;}
  .zone-arrow{display:none;}
}

/* roulang page: category3 */
:root{
  --ink:#14100D; --ink-2:#3A342E; --muted:#7A736A;
  --paper:#F7F3EC; --surface:#FFFFFF; --surface-2:#EFE9DF; --line:#E2D9CB;
  --primary:#B4522A; --primary-600:#933F1E; --primary-100:#F6E7DF;
  --accent:#1F6B57; --accent-100:#E3EFEA; --data:#C08A16;
  --r-sm:10px; --r-md:14px; --r-lg:20px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,16,13,.06);
  --sh-2:0 12px 32px -12px rgba(20,16,13,.18);
  --sh-3:0 22px 48px -18px rgba(20,16,13,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --mono:"Roboto Mono","SFMono-Regular",ui-monospace,Menlo,monospace;
}
*,*::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);font-size:17px;line-height:1.88;
  font-weight:400;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0 0 .6em;font-weight:700;line-height:1.3;color:var(--ink)}
h1{font-size:clamp(28px,4vw,46px);line-height:1.24;font-weight:800;letter-spacing:0}
h2{font-size:clamp(24px,3vw,34px);line-height:1.3}
h3{font-size:20px;line-height:1.4}
h4{font-size:17px;line-height:1.5}
p{margin:0 0 1.15em}
a{color:var(--primary);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--primary-600)}
ul,ol{margin:0 0 1.15em;padding-left:22px}
li{margin-bottom:.6em}
img{max-width:100%;display:block;height:auto}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.grid-container{max-width:1240px!important;width:100%;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:96px 0;border-bottom:1px solid var(--line)}
.section--tint{background:var(--surface-2)}
.section--plain{border-bottom:none}
.mono{font-family:var(--mono)}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  border-top:1px solid var(--primary);
  background:transparent;
  transition:background .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(247,243,236,.94);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  box-shadow:0 1px 0 var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:34px;height:34px;border-radius:6px;background:var(--primary);color:#FBF7F0;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:13px;font-weight:700;letter-spacing:.02em;
  box-shadow:var(--sh-1);
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.nav-desktop{display:flex;align-items:center;gap:32px}
.nav-link{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;font-weight:500;letter-spacing:.02em;color:var(--ink-2);
  transition:color .18s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-2px;height:2px;width:0;
  background:var(--primary);transform:translateX(-50%);
  transition:width .18s var(--ease);
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{width:20px;height:3px}
.nav-actions{display:flex;align-items:center;gap:14px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;background:transparent;color:var(--ink);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--primary);color:#FBF7F0;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-600);border-color:var(--primary-600);color:#FBF7F0;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{border-color:var(--primary);color:var(--primary)}
.btn-ghost:hover{background:var(--primary-100);color:var(--primary-600);border-color:var(--primary-600)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:#FBF7F0;color:var(--ink);border-color:#FBF7F0}
.btn-light:hover{background:#fff;color:var(--ink);transform:translateY(-1px);box-shadow:var(--sh-2)}
.nav-cta{height:40px;padding:0 22px;font-size:15px;border-radius:var(--r-pill)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--surface);padding:0;cursor:pointer;position:relative;
}
.nav-toggle span{
  display:block;width:20px;height:2px;background:var(--ink);margin:0 auto;border-radius:2px;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span + span{margin-top:5px}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 移动端抽屉 */
.nav-drawer{
  position:fixed;inset:73px 0 0;z-index:70;background:var(--paper);
  transform:translateY(-12px);opacity:0;visibility:hidden;overflow-y:auto;
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
}
.nav-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-inner{padding:12px 20px 40px}
.drawer-link{
  display:flex;align-items:center;height:56px;font-size:18px;font-weight:500;
  color:var(--ink-2);border-bottom:1px solid var(--line);
}
.drawer-link.is-active{color:var(--primary);font-weight:700}
.drawer-cta{margin-top:24px;width:100%;height:50px;border-radius:var(--r-sm)}
body.no-scroll{overflow:hidden}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:132px 0 76px;
  background-color:var(--paper);
  background-image:
    linear-gradient(rgba(20,16,13,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(20,16,13,.035) 1px,transparent 1px);
  background-size:24px 24px;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;right:-80px;top:20px;width:620px;height:420px;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:.13;pointer-events:none;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 55%);
  mask-image:linear-gradient(90deg,transparent,#000 55%);
}
.page-hero .grid-container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--muted);margin-bottom:22px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink);font-weight:600}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:start}
.hero-lede{font-size:18px;line-height:1.8;color:var(--ink-2);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:26px 0 24px}
.trust-row{display:flex;flex-wrap:wrap;align-items:center;gap:18px;font-size:13px;color:var(--ink-2)}
.trust-row .t-item{display:inline-flex;align-items:center;gap:8px}
.trust-row .t-item + .t-item{padding-left:18px;border-left:1px solid var(--line)}
.ico{width:20px;height:20px;flex:0 0 auto;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;stroke:currentColor}
.hero-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:28px;
}
.hero-panel h2{font-size:17px;font-weight:700;margin-bottom:4px}
.hero-panel .panel-note{font-size:13px;color:var(--muted);margin-bottom:20px}
.panel-grid{display:grid;grid-template-columns:1fr 1fr;gap:0}
.panel-cell{padding:18px 16px;border-top:1px solid var(--line)}
.panel-cell:nth-child(odd){border-right:1px solid var(--line);padding-left:0}
.panel-cell:nth-child(even){padding-right:0}
.panel-cell:nth-child(1),.panel-cell:nth-child(2){border-top:none;padding-top:0}
.panel-num{font-family:var(--mono);font-size:30px;font-weight:700;color:var(--primary);line-height:1.1;display:flex;align-items:baseline;gap:4px}
.panel-num small{font-size:13px;color:var(--muted);font-weight:400}
.panel-cap{font-size:13px;color:var(--ink-2);margin-top:6px;line-height:1.6}

/* ============ 通用标题行 ============ */
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.sec-head h2{position:relative;padding-left:14px;margin-bottom:0}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--primary);
}
.sec-head .sec-note{font-size:14px;color:var(--muted);max-width:520px;margin:0}

/* ============ 标签胶囊 ============ */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.chip{
  appearance:none;padding:8px 18px;border:1px solid var(--line);border-radius:var(--r-pill);
  background:var(--surface);color:var(--ink-2);font-size:14px;font-weight:500;line-height:1.4;
  cursor:pointer;transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.chip:hover{border-color:var(--primary);color:var(--primary)}
.chip.is-active{background:var(--primary);border-color:var(--primary);color:#FBF7F0}
.chip:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* ============ 不等高卡片流 ============ */
.card-flow{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:start}
.flow-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);padding:28px;display:flex;flex-direction:column;gap:14px;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.flow-card:hover{transform:translateY(-2px);border-color:var(--primary);box-shadow:var(--sh-2)}
.flow-card.is-hidden{display:none}
.flow-card--pad{padding:34px}
.flow-card--tight{padding:24px}
.card-figure{border-radius:var(--r-md);overflow:hidden;background:var(--surface-2);aspect-ratio:16/10;margin-bottom:4px}
.card-figure img{width:100%;height:100%;object-fit:cover}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 8px;border-radius:4px;
  font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.04em;
  background:var(--primary-100);color:var(--primary);
}
.badge--accent{background:var(--accent-100);color:var(--accent)}
.badge--neutral{background:var(--surface-2);color:var(--ink-2)}
.flow-card h3{margin:0}
.flow-card .card-desc{font-size:15px;color:var(--ink-2);margin:0}
.point-list{list-style:none;margin:0;padding:0}
.point-list li{position:relative;padding-left:16px;font-size:15px;color:var(--ink-2);margin-bottom:.55em;line-height:1.75}
.point-list li:last-child{margin-bottom:0}
.point-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:1px;background:var(--primary);
}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary);
  margin-top:auto;padding-top:6px;
}
.text-link svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .18s var(--ease)}
.text-link:hover svg{transform:translateX(4px)}

/* ============ 流程步骤 ============ */
.step-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--line)}
.step{padding:28px 24px 8px;border-right:1px solid var(--line)}
.step:last-child{border-right:none}
.step-num{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--primary);letter-spacing:.08em}
.step h3{font-size:18px;margin:10px 0 8px}
.step p{font-size:14px;color:var(--ink-2);margin:0}

/* ============ 排期列表 ============ */
.schedule{border-top:1px solid var(--line)}
.schedule-item{
  display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1.1fr) minmax(0,.7fr);
  gap:16px;align-items:center;padding:20px 16px;border-bottom:1px solid var(--line);
  transition:background .18s var(--ease);
}
.schedule-item:hover{background:var(--surface)}
.schedule-name{font-size:17px;font-weight:600;color:var(--ink);display:flex;align-items:center;gap:10px}
.schedule-cycle{font-size:14px;color:var(--muted);font-family:var(--mono)}
.schedule-state{font-size:13px;color:var(--accent);display:inline-flex;align-items:center;gap:6px;font-weight:600}
.schedule-state::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.schedule-state--soon{color:var(--data)}
.schedule-state--soon::before{background:var(--data)}

/* ============ 指标条 ============ */
.stat-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;background:var(--surface)}
.stat{padding:28px 24px;border-left:1px solid var(--line);transition:background .2s var(--ease)}
.stat:first-child{border-left:none}
.stat:hover{background:var(--primary-100)}
.stat-num{font-family:var(--mono);font-size:clamp(28px,3.2vw,42px);font-weight:700;line-height:1.1;color:var(--primary)}
.stat-num small{font-size:14px;color:var(--muted);font-weight:400;margin-left:4px}
.stat-cap{font-size:13px;color:var(--muted);margin-top:8px}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px}
.faq-acc{list-style:none;margin:0;padding:0 0 0 16px;background:transparent;border:none}
.faq-acc .accordion-item{border-bottom:1px solid var(--line);background:transparent}
.faq-acc .accordion-title{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:17px;font-weight:700;color:var(--ink);background:transparent;border:none;
  line-height:1.55;transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.faq-acc .accordion-title::before{
  content:"";position:absolute;left:-16px;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:2px;background:var(--primary);
  transition:height .2s var(--ease);right:auto;
}
.faq-acc .accordion-item.is-active > .accordion-title{color:var(--primary);padding-left:12px}
.faq-acc .accordion-item.is-active > .accordion-title::before{height:24px}
.faq-acc .accordion-title::after{
  content:"";flex:0 0 auto;width:14px;height:14px;
  background-image:
    linear-gradient(currentColor,currentColor),
    linear-gradient(currentColor,currentColor);
  background-position:center center,center center;
  background-size:14px 2px,2px 14px;
  background-repeat:no-repeat;
  color:var(--ink-2);
  transition:transform .2s var(--ease),background-size .2s var(--ease),color .2s var(--ease);
}
.faq-acc .accordion-item.is-active > .accordion-title::after{
  transform:rotate(180deg);background-size:14px 2px,0 14px;color:var(--primary);
}
.faq-acc .accordion-content{
  padding:0 0 20px;border:none;background:transparent;color:var(--ink-2);
  font-size:16px;line-height:1.85;
}
.faq-acc .accordion-content p:last-child{margin-bottom:0}

/* ============ CTA ============ */
.cta-band{background:var(--ink);color:rgba(247,243,236,.78);border-bottom:none}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:48px;align-items:center}
.cta-band h2{color:#FBF7F0;position:relative;padding-left:14px}
.cta-band h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--primary)}
.cta-band p{color:rgba(247,243,236,.72);font-size:16px;margin-bottom:0}
.cta-points{list-style:none;margin:22px 0 0;padding:0}
.cta-points li{position:relative;padding-left:22px;margin-bottom:.6em;font-size:15px;color:rgba(247,243,236,.8)}
.cta-points li::before{content:"";position:absolute;left:0;top:.6em;width:8px;height:8px;border-radius:1px;background:var(--primary)}
.cta-card{background:rgba(247,243,236,.06);border:1px solid rgba(247,243,236,.16);border-radius:var(--r-lg);padding:32px}
.cta-card h3{color:#FBF7F0;font-size:18px;margin-bottom:14px}
.cta-meta{font-size:14px;color:rgba(247,243,236,.7);margin:0 0 8px;display:flex;align-items:center;gap:8px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.cta-card .btn-ghost{border-color:rgba(247,243,236,.5);color:#FBF7F0}
.cta-card .btn-ghost:hover{background:rgba(247,243,236,.12);border-color:#FBF7F0;color:#FBF7F0}
.cta-note{font-size:13px;color:rgba(247,243,236,.55);margin-top:16px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(247,243,236,.72);padding:72px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-col h4{font-size:13px;font-weight:600;letter-spacing:.06em;color:rgba(247,243,236,.92);margin-bottom:16px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.site-footer a{color:rgba(247,243,236,.72);font-size:14px;display:inline-block;transition:color .18s var(--ease),transform .18s var(--ease)}
.site-footer a:hover{color:var(--primary);transform:translateX(-2px)}
.site-footer .brand{color:#FBF7F0}
.site-footer .brand:hover{color:#FBF7F0;transform:none}
.site-footer .brand-text{color:#FBF7F0}
.footer-about{font-size:14px;line-height:1.75;color:rgba(247,243,236,.68);margin:16px 0 0;max-width:320px}
.footer-contact p{font-size:13px;color:rgba(247,243,236,.6);margin:0 0 6px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(247,243,236,.12);
  font-size:13px;color:rgba(247,243,236,.55);
}
.to-top{
  width:40px;height:40px;border:1px solid rgba(247,243,236,.3);border-radius:var(--r-sm);
  display:inline-flex;align-items:center;justify-content:center;color:rgba(247,243,236,.8);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.to-top:hover{background:var(--primary);border-color:var(--primary);color:#FBF7F0;transform:none}
.to-top .ico{width:18px;height:18px}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .grid-container{padding-left:20px;padding-right:20px}
  .section{padding:72px 0}
  .nav-desktop{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:block}
  .page-hero{padding:112px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .page-hero::after{width:460px;height:320px;opacity:.1}
  .card-flow{grid-template-columns:1fr}
  .step-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step{border-bottom:1px solid var(--line)}
  .step:nth-child(2n){border-right:none}
  .step:nth-last-child(-n+2){border-bottom:none}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat:nth-child(odd){border-left:none}
  .stat:nth-child(3),.stat:nth-child(4){border-top:1px solid var(--line)}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:639px){
  body{font-size:16px}
  .grid-container{padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .page-hero{padding:100px 0 52px}
  .hero-actions .btn{width:100%}
  .trust-row{gap:12px}
  .trust-row .t-item + .t-item{padding-left:12px}
  .panel-grid{grid-template-columns:1fr 1fr}
  .panel-num{font-size:26px}
  .step-row{grid-template-columns:1fr}
  .step{border-right:none}
  .step:nth-last-child(-n+2){border-bottom:1px solid var(--line)}
  .step:last-child{border-bottom:none}
  .stat-row{grid-template-columns:1fr}
  .stat{border-left:none;border-top:1px solid var(--line);padding:22px 18px}
  .stat:first-child{border-top:none}
  .schedule-item{grid-template-columns:1fr;gap:6px;padding:18px 4px}
  .flow-card{padding:22px}
  .flow-card--pad{padding:24px}
  .faq-acc{padding-left:12px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .cta-card{padding:24px}
}

/* roulang page: category4 */
:root{
  --ink:#14100D;--ink-2:#3A342E;--muted:#7A736A;
  --paper:#F7F3EC;--surface:#FFFFFF;--surface-2:#EFE9DF;--line:#E2D9CB;
  --primary:#B4522A;--primary-600:#933F1E;--primary-100:#F6E7DF;
  --accent:#1F6B57;--accent-100:#E3EFEA;--data:#C08A16;
  --r-sm:10px;--r-md:14px;--r-lg:20px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(20,16,13,.06);
  --sh-2:0 12px 32px -12px rgba(20,16,13,.18);
  --sh-3:0 22px 48px -18px rgba(20,16,13,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-mono:"Roboto Mono","SFMono-Regular",ui-monospace,Menlo,monospace;
  --sec-y:96px;
}
*,*::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-sans);font-size:17px;line-height:1.88;font-weight:400;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--primary-600)}
h1,h2,h3,h4,h5,p,ul,ol,figure,dl{margin:0;padding:0}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit;margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
body.drawer-open{overflow:hidden}

/* 容器与栅格 */
.grid-container{max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px}
.grid-x{margin-left:-14px;margin-right:-14px}
.grid-x>.cell{padding-left:14px;padding-right:14px}
.grid-x>.cell.align-self-middle{align-self:center}

/* 导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  border-top:1px solid var(--primary);background:transparent;
  transition:background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(247,243,236,.94);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;display:flex;align-items:center;justify-content:center;
  background:var(--primary);color:var(--paper);font-family:var(--font-mono);
  font-size:13px;font-weight:700;letter-spacing:.02em;border-radius:4px;
}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.01em;line-height:1}
.nav-desktop{display:flex;align-items:center;gap:32px}
.nav-link{
  position:relative;display:inline-block;padding:8px 0;
  font-size:15px;font-weight:500;letter-spacing:.02em;color:var(--ink-2);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:0;width:0;height:2px;
  background:var(--primary);transform:translateX(-50%);
  transition:width .18s var(--ease);border-radius:2px;
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--ink)}
.nav-link.is-active::after{width:20px;height:3px}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:var(--surface);
  border-radius:var(--r-sm);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:border-color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--primary)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .22s var(--ease),opacity .22s var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-drawer{
  position:fixed;inset:0;z-index:55;background:var(--paper);
  padding:96px 0 32px;opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
  display:none;overflow-y:auto;
}
.nav-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-inner{padding:0 20px}
.drawer-link{
  display:flex;align-items:center;height:56px;font-size:18px;font-weight:500;
  color:var(--ink-2);border-bottom:1px solid var(--line);
}
.drawer-link.is-active{color:var(--primary);font-weight:700}
.drawer-cta{width:100%;margin-top:24px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--primary);color:var(--paper)}
.btn-primary:hover{background:var(--primary-600);color:var(--paper);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-ghost:hover{background:var(--primary-100);color:var(--primary-600);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.nav-cta{height:40px;padding:0 22px;border-radius:var(--r-pill);font-size:15px}
.btn-full{width:100%}
.text-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary)}
.text-arrow .ico{transition:transform .18s var(--ease)}
.text-arrow:hover .ico{transform:translateX(4px)}
.ico{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.ico-sm{width:16px;height:16px}

/* 首屏 */
.hero{position:relative;padding-top:128px;padding-bottom:80px;border-bottom:1px solid var(--line);overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(20,16,13,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(20,16,13,.035) 1px,transparent 1px);
  background-size:24px 24px;
}
.hero-photo{
  position:absolute;right:0;top:0;bottom:0;width:52%;pointer-events:none;opacity:.13;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 48%);
  mask-image:linear-gradient(90deg,transparent,#000 48%);
}
.hero-inner{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--muted);margin-bottom:26px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 10px;margin-bottom:18px;
  background:var(--primary-100);color:var(--primary);border-radius:4px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
}
h1{font-size:clamp(30px,4.6vw,52px);line-height:1.24;font-weight:800;letter-spacing:-.01em}
.hero-lead{margin-top:20px;font-size:19px;line-height:1.8;color:var(--ink-2);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-points{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:28px;font-size:13.5px;color:var(--ink-2)}
.hero-points li{display:inline-flex;align-items:center;gap:8px}
.hero-points li+li{padding-left:14px;border-left:1px solid var(--line)}
.hero-points .ico{width:20px;height:20px;color:var(--primary)}

/* 路径卡 */
.path-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:28px;
}
.path-card h2{font-size:18px;font-weight:700;line-height:1.4}
.path-card .card-note{margin-top:8px;font-size:13px;color:var(--muted);line-height:1.7}
.path-list{margin-top:20px;border-top:1px solid var(--line)}
.path-list li{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-bottom:1px solid var(--line)}
.path-list li:last-child{border-bottom:0;padding-bottom:0}
.path-no{
  font-family:var(--font-mono);font-size:14px;font-weight:700;color:var(--primary);
  flex:0 0 30px;line-height:1.6;
}
.path-list h3{font-size:15.5px;font-weight:700;line-height:1.5}
.path-list p{margin-top:4px;font-size:13.5px;line-height:1.7;color:var(--muted)}

/* 板块通用 */
.section{padding-top:var(--sec-y);padding-bottom:var(--sec-y)}
.section-tint{background:var(--surface-2)}
.section-line{border-top:1px solid var(--line)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px}
.section-head h2{position:relative;padding-left:16px;font-size:clamp(24px,3vw,34px);line-height:1.3;font-weight:700}
.section-head h2::before{content:"";position:absolute;left:0;top:.14em;bottom:.14em;width:4px;background:var(--primary);border-radius:2px}
.section-note{font-size:14px;color:var(--muted);max-width:520px;line-height:1.8}

/* 对照表 */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);box-shadow:var(--sh-1)}
.data-table{width:100%;min-width:780px;border-collapse:collapse;font-size:15px}
.data-table thead th{
  background:var(--ink);color:var(--paper);text-align:left;font-weight:600;
  font-size:14px;letter-spacing:.03em;padding:14px 18px;white-space:nowrap;
}
.data-table tbody th{
  text-align:left;font-weight:700;color:var(--ink);background:var(--surface-2);
  padding:14px 18px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.data-table tbody td{padding:14px 18px;border-bottom:1px solid var(--line);color:var(--ink-2);line-height:1.7}
.data-table tbody tr:nth-child(even) td{background:var(--surface-2)}
.data-table tbody tr:last-child th,.data-table tbody tr:last-child td{border-bottom:0}
.data-table tbody tr:hover td{background:var(--primary-100);transition:background .18s var(--ease)}
.risk-tag{display:inline-block;padding:2px 8px;border-radius:4px;background:var(--surface-2);font-size:12.5px;color:var(--muted)}
.safe-tag{display:inline-block;padding:2px 8px;border-radius:4px;background:var(--accent-100);font-size:12.5px;color:var(--accent);font-weight:600}

/* 横长卡 */
.long-list{display:grid;gap:22px}
.long-card{
  display:flex;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.long-card:hover{transform:translateY(-2px);border-color:var(--primary);box-shadow:var(--sh-2)}
.long-media{flex:0 0 30%;min-height:196px;background:var(--surface-2)}
.long-media img{width:100%;height:100%;object-fit:cover}
.long-body{flex:1;padding:26px 30px}
.long-body h3{font-size:20px;line-height:1.4;font-weight:700}
.long-body p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.dot-list{margin-top:14px}
.dot-list li{position:relative;padding-left:16px;font-size:14.5px;line-height:1.8;color:var(--ink-2)}
.dot-list li+li{margin-top:4px}
.dot-list li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;background:var(--primary);border-radius:1px}
.long-body .text-arrow{margin-top:16px}

/* 自查清单 */
.check-list{border-top:1px solid var(--line)}
.check-list li{
  display:flex;gap:18px;align-items:flex-start;padding:20px 16px;border-bottom:1px solid var(--line);
  transition:background .18s var(--ease);
}
.check-list li:hover{background:var(--surface-2)}
.check-no{
  font-family:var(--font-mono);font-size:15px;font-weight:700;color:var(--primary);
  flex:0 0 34px;line-height:1.7;
}
.check-list h3{font-size:16.5px;font-weight:700;line-height:1.5}
.check-list p{margin-top:6px;font-size:14.5px;line-height:1.8;color:var(--ink-2)}
.side-note{
  background:var(--primary-100);border-radius:var(--r-md);padding:24px;border:1px solid rgba(180,82,42,.18);
}
.side-note h3{font-size:17px;font-weight:700;line-height:1.5}
.side-note p{margin-top:10px;font-size:14.5px;line-height:1.85;color:var(--ink-2)}
.side-note .btn{margin-top:18px}

/* FAQ */
.faq-list{border-top:1px solid var(--line)}
.faq-item{position:relative;padding-left:16px;border-bottom:1px solid var(--line)}
.faq-item::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;background:transparent;
  border-radius:2px;transition:background .2s var(--ease);
}
.faq-item.is-open::before{background:var(--primary)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:17px;font-weight:700;color:var(--ink);line-height:1.6;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--primary)}
.faq-item.is-open .faq-q{color:var(--primary)}
.faq-icon{position:relative;flex:0 0 18px;width:18px;height:18px;color:var(--ink-2);transition:color .2s var(--ease)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
  transition:transform .2s var(--ease),opacity .2s var(--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{color:var(--primary)}
.faq-item.is-open .faq-icon::before{transform:rotate(180deg)}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{display:none;padding:0 0 20px;font-size:16px;line-height:1.85;color:var(--ink-2);max-width:860px}
.faq-item.is-open .faq-a{display:block}

/* CTA 与表单 */
.cta-band{background:var(--ink);color:var(--paper);padding-top:var(--sec-y);padding-bottom:var(--sec-y)}
.cta-band h2{font-size:clamp(24px,3vw,34px);line-height:1.3;font-weight:700;color:var(--paper)}
.cta-band p{margin-top:16px;font-size:16px;line-height:1.85;color:rgba(247,243,236,.72)}
.cta-points{margin-top:24px;display:grid;gap:12px}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:15px;color:rgba(247,243,236,.86)}
.cta-points .ico{width:20px;height:20px;color:var(--primary)}
.cta-meta{margin-top:26px;padding-top:20px;border-top:1px solid rgba(247,243,236,.16);font-size:13.5px;color:rgba(247,243,236,.62);display:grid;gap:6px}
.form-card{background:var(--surface);border-radius:var(--r-lg);box-shadow:var(--sh-3);padding:32px}
.form-card h3{font-size:19px;font-weight:700;color:var(--ink)}
.form-card .form-note{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.7}
.field{margin-top:18px}
.field label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px;font-weight:500}
.field input,.field select,.field textarea{
  width:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:12px 14px;font-size:15px;color:var(--ink);min-height:46px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(180,82,42,.16);
}
.form-card .btn{margin-top:22px}
.form-tip{margin-top:14px;font-size:13px;color:var(--muted);line-height:1.7}
.form-tip.is-visible{color:var(--accent);font-weight:600}
.compliance{margin-top:10px;font-size:13px;color:var(--muted);line-height:1.7}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(247,243,236,.72);padding-top:72px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px}
.footer-col h4{
  font-size:13px;font-weight:600;letter-spacing:.06em;color:rgba(247,243,236,.56);
  margin-bottom:18px;text-transform:none;
}
.footer-col .brand{color:var(--paper)}
.footer-col .brand:hover{color:var(--paper)}
.footer-col .brand-text{color:var(--paper)}
.footer-about{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(247,243,236,.66);max-width:320px}
.footer-contact p{font-size:13.5px;line-height:1.9;color:rgba(247,243,236,.6)}
.footer-col ul li{margin-bottom:12px}
.footer-col ul a{font-size:14.5px;color:rgba(247,243,236,.78);display:inline-block;transition:color .18s var(--ease),transform .18s var(--ease)}
.footer-col ul a:hover{color:var(--primary);transform:translateX(-2px)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(247,243,236,.12);padding:22px 0;font-size:13px;color:rgba(247,243,236,.6);
}
.to-top{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(247,243,236,.28);border-radius:var(--r-sm);color:var(--paper);
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.to-top:hover{background:var(--primary);border-color:var(--primary);color:var(--paper)}

/* 响应式 */
@media (max-width:1023px){
  :root{--sec-y:72px}
  .nav-desktop{display:none}
  .nav-toggle{display:flex}
  .nav-drawer{display:block}
  .nav-cta{display:none}
  .hero{padding-top:112px;padding-bottom:64px}
  .hero-photo{width:70%;opacity:.1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .long-card{flex-direction:column}
  .long-media{flex:none;width:100%;height:200px;min-height:0}
}
@media (max-width:639px){
  :root{--sec-y:56px}
  .grid-container{padding-left:16px;padding-right:16px}
  .grid-x{margin-left:-8px;margin-right:-8px}
  .grid-x>.cell{padding-left:8px;padding-right:8px}
  body{font-size:16px;line-height:1.85}
  h1{font-size:clamp(26px,7.4vw,34px)}
  .hero-lead{font-size:17px}
  .hero-actions .btn{width:100%}
  .hero-points{gap:10px}
  .hero-points li+li{padding-left:0;border-left:0;width:100%}
  .path-card{padding:22px}
  .section-head{margin-bottom:28px}
  .long-body{padding:22px 20px}
  .long-media{height:176px}
  .footer-grid{grid-template-columns:1fr}
  .form-card{padding:22px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-band .btn{width:100%}
}