/* roulang page: index */
:root{
  --ink:#17332E;
  --ink-deep:#0E211D;
  --copper:#C0703A;
  --copper-deep:#A65C2C;
  --stone:#4B6B7C;
  --paper:#F7F4EE;
  --paper-2:#EFE9DD;
  --card:#FFFFFF;
  --line:#E0D9CB;
  --text:#23241F;
  --muted:#6B6A62;
  --radius-card:6px;
  --radius-btn:4px;
  --shadow-1:0 1px 2px rgba(23,51,46,.06);
  --shadow-2:0 10px 28px rgba(23,51,46,.08);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;font-weight:600;color:var(--ink);line-height:1.3;letter-spacing:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
dl,dt,dd{margin:0;}

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

.section{padding-top:64px;padding-bottom:64px;}
@media (min-width:1024px){.section{padding-top:84px;padding-bottom:84px;}}
.section-tight{padding-top:48px;padding-bottom:48px;}
@media (min-width:1024px){.section-tight{padding-top:60px;padding-bottom:60px;}}
.hairline{border-top:1px solid var(--line);}
.bg-alt{background:var(--paper-2);}

.sec-title{font-size:26px;line-height:1.35;}
@media (min-width:1024px){.sec-title{font-size:30px;}}
.sec-sub{max-width:760px;margin-top:14px;font-size:15px;line-height:1.85;color:var(--muted);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.1em;color:var(--copper);}
.eyebrow::before{content:"";display:block;width:2px;height:14px;background:var(--copper);}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(247,244,238,.92);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:8px;height:8px;background:var(--copper);border-radius:1px;flex:0 0 auto;}
.brand-name{display:block;font-family:"Noto Serif SC",serif;font-size:20px;font-weight:700;color:var(--ink);line-height:1.1;letter-spacing:.02em;}
.brand-sub{display:block;font-size:12px;color:var(--muted);line-height:1.4;letter-spacing:.04em;}
.main-nav{display:flex;align-items:center;gap:2px;}
.nav-link{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 14px;font-size:15px;color:var(--text);
  border-radius:var(--radius-btn);
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--copper);background:rgba(192,112,58,.06);}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::before{content:"";width:14px;height:1px;background:var(--copper);display:block;}
.nav-drop{position:relative;}
.nav-drop::after{content:"";position:absolute;left:0;right:0;top:100%;height:12px;}
.nav-drop .nav-link::after{
  content:"";width:0;height:0;
  border-left:3px solid transparent;border-right:3px solid transparent;border-top:4px solid currentColor;
  opacity:.5;transition:transform .2s ease;
}
.nav-drop:hover .nav-link::after,
.nav-drop:focus-within .nav-link::after{transform:rotate(180deg);}
.drop-panel{
  position:absolute;top:calc(100% + 10px);left:0;
  min-width:248px;padding:8px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
  z-index:60;
}
.nav-drop:hover .drop-panel,
.nav-drop:focus-within .drop-panel{opacity:1;visibility:visible;transform:translateY(0);}
.drop-link{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:9px 12px;border-radius:var(--radius-btn);
  font-size:14px;color:var(--text);transition:background .16s ease,color .16s ease;
}
.drop-link:hover{background:var(--paper-2);color:var(--copper);}
.drop-link span{font-size:12px;color:var(--muted);}
.drop-link:hover span{color:var(--copper);}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search input{
  width:180px;min-height:40px;padding:8px 12px;
  border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;font-size:14px;color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search input::placeholder{color:#9C9A90;}
.nav-search input:focus{outline:none;border-color:var(--copper);box-shadow:0 0 0 2px rgba(192,112,58,.2);}

/* 移动端菜单 */
.mobile-menu{position:relative;}
.mobile-menu>summary{
  list-style:none;cursor:pointer;width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-btn);
}
.mobile-menu>summary::-webkit-details-marker{display:none;}
.burger{display:block;position:relative;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:background .2s ease;}
.burger::before,.burger::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease;}
.burger::before{top:-6px;}
.burger::after{top:6px;}
.mobile-drawer{
  position:fixed;left:0;right:0;top:72px;bottom:0;z-index:49;
  background:var(--paper);border-top:1px solid var(--line);
  overflow-y:auto;padding:16px 20px 48px;
}
.mobile-drawer a.m-link{display:block;padding:14px 2px;font-size:16px;color:var(--text);border-bottom:1px solid var(--line);}
.mobile-drawer a.m-link.active{color:var(--copper);font-weight:600;}
.mobile-group-title{padding:18px 2px 8px;font-size:12px;letter-spacing:.1em;color:var(--muted);}
.mobile-drawer a.m-sub{display:block;padding:11px 14px;font-size:14px;color:var(--muted);border-bottom:1px solid var(--line);}
.mobile-drawer a.m-sub:hover{color:var(--copper);}
.mobile-search{margin-top:20px;}
.mobile-search input{width:100%;min-height:44px;padding:10px 12px;border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;font-size:15px;}
.mobile-search input:focus{outline:none;border-color:var(--copper);box-shadow:0 0 0 2px rgba(192,112,58,.2);}

/* 按钮 */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;
  background:var(--copper);border:1px solid var(--copper);color:#fff;
  border-radius:var(--radius-btn);font-size:15px;font-weight:500;
  transition:background .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary:hover{background:var(--copper-deep);border-color:var(--copper-deep);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-primary:focus-visible{outline:2px solid var(--copper);outline-offset:2px;}
.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;
  background:transparent;border:1px solid var(--ink);color:var(--ink);
  border-radius:var(--radius-btn);font-size:15px;font-weight:500;
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.btn-secondary:hover{color:var(--copper);border-color:var(--copper);background:rgba(192,112,58,.06);transform:translateY(-1px);}
.btn-secondary:active{transform:none;}
.btn-secondary:focus-visible{outline:2px solid var(--copper);outline-offset:2px;}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.text-link{color:var(--ink);border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease;}
.text-link:hover{color:var(--copper);border-bottom-color:var(--copper);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--copper);transition:gap .2s ease;}
.link-arrow:hover{gap:10px;}

/* Hero */
.hero-section{
  position:relative;
  background-color:var(--paper);
  background-image:repeating-linear-gradient(to right,rgba(23,51,46,.055) 0 1px,transparent 1px 96px);
  border-bottom:1px solid var(--line);
}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.1em;color:var(--copper);
}
.hero-badge::before{content:"";width:2px;height:14px;background:var(--copper);display:block;}
.hero-title{
  margin-top:20px;
  font-size:clamp(30px,4.4vw,46px);
  line-height:1.25;
  color:var(--ink);
}
.hero-sub{margin-top:20px;font-size:16px;line-height:1.85;color:var(--muted);max-width:600px;}
.hero-desc{margin-top:16px;font-size:15px;line-height:1.85;color:var(--text);max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-metrics{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:30px;font-size:13px;color:var(--muted);
}
.hero-metrics span.divider{color:var(--line);}
.hero-media{position:relative;}
.hero-media-main img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-card);border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.hero-media-card{
  position:absolute;left:14px;bottom:-26px;width:180px;padding:6px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);
}
.hero-media-card img{width:100%;height:110px;object-fit:cover;border-radius:4px;}
@media (min-width:1024px){.hero-media-card{left:-20px;}}

/* 指标条 */
.metric-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);}
@media (min-width:768px){.metric-grid{grid-template-columns:repeat(4,1fr);}}
.metric-cell{padding:26px 8px 26px 0;border-right:1px solid var(--line);}
.metric-cell:nth-child(2n){border-right:none;padding-left:24px;}
@media (min-width:768px){
  .metric-cell:nth-child(2n){border-right:1px solid var(--line);}
  .metric-cell:last-child{border-right:none;}
  .metric-cell{padding-left:28px;}
  .metric-cell:first-child{padding-left:0;}
}
.metric-num{font-family:"Noto Serif SC",serif;font-size:34px;font-weight:700;color:var(--ink);line-height:1.1;}
.metric-unit{font-size:14px;color:var(--copper);margin-left:4px;font-family:"Noto Sans SC",sans-serif;font-weight:400;}
.metric-label{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.7;}

/* 卡片通用 */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.card:hover{border-color:var(--copper);box-shadow:var(--shadow-2);transform:translateY(-1px);}
.card-pad{padding:26px;}
.card-icon{
  width:32px;height:32px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--copper);border-radius:var(--radius-btn);
  color:var(--copper);font-family:"Noto Serif SC",serif;font-size:14px;
}
.card h3{font-size:18px;line-height:1.45;}
.card p{margin-top:10px;font-size:15px;line-height:1.75;color:var(--muted);}
.card-foot{margin-top:18px;font-size:13px;letter-spacing:.02em;color:var(--copper);}
.matrix-feature{border-left:3px solid var(--copper);}
@media (min-width:1024px){.matrix-offset{margin-top:-16px;}}

/* 深色数据区 */
.dark-band{background:var(--ink);color:#fff;padding:56px 0;}
@media (min-width:1024px){.dark-band{padding:72px 0;}}
.dark-band h2{color:#fff;}
.dark-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px 0;margin-top:40px;}
@media (min-width:768px){.dark-grid{grid-template-columns:repeat(4,1fr);}}
.dark-cell{padding-right:8px;}
@media (min-width:768px){
  .dark-cell{border-right:1px solid rgba(255,255,255,.14);padding:0 24px;}
  .dark-cell:last-child{border-right:none;padding-right:0;}
  .dark-cell:first-child{padding-left:0;}
}
.dark-num{font-family:"Noto Serif SC",serif;font-size:40px;font-weight:700;line-height:1.1;}
@media (min-width:1024px){.dark-num{font-size:50px;}}
.dark-unit{font-size:14px;color:var(--copper);margin-left:4px;font-weight:400;font-family:"Noto Sans SC",sans-serif;}
.dark-label{margin-top:10px;font-size:14px;line-height:1.75;color:rgba(255,255,255,.7);}

/* 流程 */
.process-track{position:relative;display:grid;grid-template-columns:1fr;gap:0;margin-top:44px;}
.process-track::before{content:"";position:absolute;left:18px;top:10px;bottom:10px;width:1px;background:var(--line);}
.process-step{position:relative;padding-left:58px;padding-bottom:30px;}
.process-step:last-child{padding-bottom:0;}
.process-dot{
  position:absolute;left:0;top:0;z-index:1;
  width:36px;height:36px;display:flex;align-items:center;justify-content:center;
  background:var(--paper);border:1px solid var(--copper);border-radius:var(--radius-card);
  color:var(--copper);font-family:"Noto Serif SC",serif;font-size:15px;
}
.process-title{font-size:18px;line-height:1.5;}
.process-desc{margin-top:8px;font-size:15px;line-height:1.75;color:var(--muted);}
@media (min-width:1024px){
  .process-track{grid-template-columns:repeat(5,1fr);gap:24px;}
  .process-track::before{left:0;right:0;top:18px;bottom:auto;width:auto;height:1px;}
  .process-step{padding-left:0;padding-bottom:0;padding-right:8px;}
  .process-dot{position:relative;}
  .process-title{margin-top:20px;}
}

/* 分类速览 */
.cat-strip{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.cat-card{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.cat-card:hover{border-color:var(--copper);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.cat-card strong{display:block;font-family:"Noto Serif SC",serif;font-size:16px;color:var(--ink);font-weight:600;}
.cat-card small{display:block;margin-top:4px;font-size:13px;color:var(--muted);}
.cat-card .arrow{color:var(--muted);font-size:14px;transition:color .2s ease,transform .2s ease;}
.cat-card:hover .arrow{color:var(--copper);transform:translateX(2px);}
.cat-card.is-primary{border-left:3px solid var(--copper);}

/* 案例墙 */
.case-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;}
.case-card:hover{border-color:var(--copper);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.case-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.case-body{padding:18px 20px 22px;}
.case-body h3{font-size:17px;line-height:1.5;transition:color .2s ease;}
.case-card:hover .case-body h3{color:var(--copper);}
.case-metric{margin-top:8px;font-size:13px;color:var(--copper);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{display:inline-block;padding:3px 10px;font-size:12px;line-height:1.7;color:var(--stone);background:rgba(75,107,124,.08);border-radius:999px;}
.tag-copper{color:var(--copper);background:rgba(192,112,58,.09);}

/* 专题合辑 */
.feature-card{position:relative;display:block;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);transition:box-shadow .2s ease,transform .2s ease;}
.feature-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.feature-card img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.feature-overlay{
  position:absolute;left:0;right:0;bottom:0;
  padding:24px;
  background:linear-gradient(to top,rgba(14,33,29,.92),rgba(14,33,29,.72) 55%,rgba(14,33,29,0));
}
.feature-overlay .tag-light{display:inline-block;padding:3px 10px;font-size:12px;color:#fff;background:rgba(192,112,58,.85);border-radius:999px;}
.feature-overlay h3{margin-top:12px;color:#fff;font-size:20px;line-height:1.45;}
.feature-overlay p{margin-top:10px;font-size:14px;line-height:1.75;color:rgba(255,255,255,.75);}
.mini-list{display:flex;flex-direction:column;gap:16px;}
.mini-item{display:flex;gap:14px;align-items:center;padding-bottom:16px;border-bottom:1px solid var(--line);transition:color .2s ease;}
.mini-item:last-child{border-bottom:none;padding-bottom:0;}
.mini-item img{width:96px;height:64px;object-fit:cover;border-radius:4px;flex:0 0 auto;}
.mini-item h3{font-size:16px;line-height:1.5;}
.mini-item:hover h3{color:var(--copper);}
.mini-item span{display:block;margin-top:6px;font-size:13px;color:var(--muted);}

/* 口碑 */
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:26px;border-left:2px solid var(--copper);}
.quote-card .quote-mark{font-family:"Noto Serif SC",serif;font-size:28px;line-height:1;color:var(--copper);}
.quote-card blockquote{margin:14px 0 0;font-size:15px;line-height:1.85;color:var(--text);}
.quote-author{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line);}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-family:"Noto Serif SC",serif;font-size:15px;flex:0 0 auto;}
.quote-author strong{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.5;}
.quote-author span{display:block;font-size:12px;color:var(--muted);line-height:1.6;}

/* 术语 */
.term-grid{display:grid;grid-template-columns:1fr;gap:0 40px;margin-top:8px;}
@media (min-width:1024px){.term-grid{grid-template-columns:repeat(2,1fr);}}
.term-item{display:flex;flex-wrap:wrap;gap:6px 18px;padding:16px 0;border-bottom:1px solid var(--line);}
.term-item dt{flex:0 0 118px;font-family:"Noto Serif SC",serif;font-weight:700;color:var(--ink);font-size:15px;}
.term-item dd{flex:1 1 200px;font-size:15px;line-height:1.75;color:var(--muted);}
.term-link{display:inline-block;color:var(--ink);transition:color .2s ease;}
.term-link:hover{color:var(--copper);}

/* 资讯列表 */
.news-item{display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--line);transition:background .2s ease;}
.news-item:last-child{border-bottom:none;}
.news-date{
  flex:0 0 auto;width:64px;height:64px;background:var(--paper-2);border-radius:var(--radius-card);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
}
.news-date strong{font-family:"Noto Serif SC",serif;font-size:22px;font-weight:700;color:var(--ink);line-height:1;}
.news-date span{font-size:12px;color:var(--muted);margin-top:4px;}
.news-body h3{font-size:18px;line-height:1.5;transition:color .2s ease;}
.news-item:hover .news-body h3{color:var(--copper);}
.news-body p{
  margin-top:8px;font-size:14px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:10px;font-size:12px;color:var(--muted);}

/* 合作渠道 */
.partner-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
@media (min-width:640px){.partner-grid{grid-template-columns:repeat(3,1fr);}}
@media (min-width:1024px){.partner-grid{grid-template-columns:repeat(4,1fr);}}
.partner-box{
  height:72px;display:flex;align-items:center;justify-content:center;
  background:#F1EDE4;border:1px solid var(--line);border-radius:var(--radius-card);
  font-family:"Noto Serif SC",serif;font-size:15px;color:var(--muted);
  opacity:.78;transition:opacity .2s ease,color .2s ease,border-color .2s ease;
}
.partner-box:hover{opacity:1;color:var(--ink);border-color:var(--line);}

/* FAQ */
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;cursor:pointer;list-style:none;
  font-family:"Noto Serif SC",serif;font-size:18px;font-weight:600;color:var(--ink);
  line-height:1.55;transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--copper);}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-family:"Noto Sans SC",sans-serif;
  font-size:20px;color:var(--copper);line-height:1;transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-answer{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--muted);max-width:780px;}

/* 保障条 */
.guarantee-bar{background:rgba(192,112,58,.05);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.guarantee-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0;}
@media (min-width:1024px){.guarantee-grid{grid-template-columns:repeat(4,1fr);}}
.guarantee-item{padding:22px 18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);}
.guarantee-item:nth-child(2n){border-right:none;}
.guarantee-item:nth-child(3),
.guarantee-item:nth-child(4){border-bottom:none;}
@media (min-width:1024px){
  .guarantee-item{border-bottom:none;padding:26px 24px;}
  .guarantee-item:nth-child(2n){border-right:1px solid var(--line);}
  .guarantee-item:last-child{border-right:none;}
  .guarantee-item:first-child{padding-left:0;}
}
.guarantee-item strong{display:block;font-size:15px;color:var(--ink);font-weight:600;line-height:1.5;}
.guarantee-item span{display:block;margin-top:6px;font-size:13px;color:var(--muted);line-height:1.7;}

/* 表单 */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:28px;}
@media (min-width:1024px){.form-card{padding:34px;}}
.form-field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;}
.form-field label{font-size:14px;font-weight:500;color:var(--ink);}
.req{color:var(--copper);}
.form-field input,
.form-field select,
.form-field textarea{
  width:100%;min-height:44px;padding:10px 12px;
  border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;font-size:15px;color:var(--text);line-height:1.6;
  transition:border-color .18s ease,box-shadow .18s ease;
  font-family:inherit;
}
.form-field textarea{min-height:110px;resize:vertical;}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus{outline:none;border-color:var(--copper);box-shadow:0 0 0 2px rgba(192,112,58,.25);}
.form-note{margin-top:14px;font-size:13px;color:var(--muted);line-height:1.7;}
.point-list li{position:relative;padding-left:20px;margin-top:12px;font-size:15px;line-height:1.8;color:var(--text);}
.point-list li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;background:var(--copper);border-radius:1px;}

/* 页脚 */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);}
.site-footer .brand-name{color:#fff;}
.site-footer .brand-sub{color:rgba(255,255,255,.5);}
.footer-title{font-size:14px;font-weight:600;color:#fff;font-family:"Noto Serif SC",serif;letter-spacing:.04em;}
.footer-list li{margin-top:12px;}
.footer-list a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease;}
.footer-list a:hover{color:var(--copper);}
.footer-text{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.5);}

/* roulang page: category1 */
:root{
 --ink:#17332E;
 --ink-deep:#0E211D;
 --copper:#C0703A;
 --copper-deep:#A65C2C;
 --stone:#4B6B7C;
 --paper:#F7F4EE;
 --paper-2:#EFE9DD;
 --card:#FFFFFF;
 --line:#E0D9CB;
 --text:#23241F;
 --muted:#6B6A62;
 --radius-card:6px;
 --radius-btn:4px;
 --shadow-1:0 1px 2px rgba(23,51,46,.06);
 --shadow-2:0 10px 28px rgba(23,51,46,.08);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
 margin:0;background:var(--paper);color:var(--text);
 font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
 font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;font-weight:700;color:var(--ink);letter-spacing:0;line-height:1.35;}
p{margin:0;}
ul,ol,dl,dd{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--copper);outline-offset:2px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

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

/* 区块间距 */
.section{padding-top:56px;padding-bottom:56px;}
@media (min-width:1024px){.section{padding-top:84px;padding-bottom:84px;}}
.section-tight{padding-top:44px;padding-bottom:44px;}
@media (min-width:1024px){.section-tight{padding-top:56px;padding-bottom:56px;}}
.rule-top{border-top:1px solid var(--line);}

/* 响应式显示 */
.desk-nav{display:none;}
.desk-inline{display:none;}
.desk-block{display:none;}
.mobile-only{display:flex;}
@media (min-width:1024px){
 .desk-nav{display:flex;align-items:center;}
 .desk-inline{display:inline-flex;}
 .desk-block{display:block;}
 .mobile-only{display:none;}
}

/* 通用标题组件 */
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.1em;color:var(--copper);}
.eyebrow::before{content:"";display:block;width:2px;height:14px;background:var(--copper);}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px 24px;margin-bottom:32px;}
.sec-title{font-size:24px;line-height:1.4;}
@media (min-width:1024px){.sec-title{font-size:30px;}}
.sec-sub{margin-top:10px;font-size:15px;color:var(--muted);max-width:720px;}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:50;background:rgba(247,244,238,.92);border-bottom:1px solid var(--line);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:8px;height:8px;background:var(--copper);border-radius:1px;flex:0 0 auto;}
.brand-name{display:block;font-family:"Noto Serif SC","Songti SC",serif;font-size:20px;font-weight:700;color:var(--ink);line-height:1.1;letter-spacing:.02em;}
.brand-sub{display:block;font-size:12px;color:var(--muted);line-height:1.5;letter-spacing:.04em;}

.main-nav{align-items:center;gap:2px;}
.nav-link{
 display:inline-flex;align-items:center;gap:6px;padding:9px 14px;font-size:15px;color:var(--text);
 border-radius:var(--radius-btn);transition:color .2s ease,background .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--copper);background:rgba(192,112,58,.06);}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::before{content:"";width:14px;height:1px;background:var(--copper);display:block;}
.nav-drop{position:relative;}
.nav-drop .nav-link::after{
 content:"";width:0;height:0;border-left:3px solid transparent;border-right:3px solid transparent;
 border-top:4px solid currentColor;opacity:.5;transition:transform .2s ease;
}
.nav-drop:hover .nav-link::after,
.nav-drop:focus-within .nav-link::after{transform:rotate(180deg);}
.drop-panel{
 position:absolute;left:0;top:calc(100% + 10px);width:252px;padding:8px;background:#fff;
 border:1px solid var(--line);border-radius:6px;box-shadow:var(--shadow-2);z-index:60;
 opacity:0;visibility:hidden;transform:translateY(6px);
 transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
}
.nav-drop:hover .drop-panel,
.nav-drop:focus-within .drop-panel{opacity:1;visibility:visible;transform:translateY(0);}
.drop-link{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px;font-size:14px;color:var(--text);border-radius:4px;transition:background .18s ease,color .18s ease;}
.drop-link:hover{background:rgba(192,112,58,.08);color:var(--copper);}
.drop-link span{color:#B9B2A4;font-size:13px;}

.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search input{
 width:176px;min-height:40px;padding:8px 12px;border:1px solid var(--line);border-radius:var(--radius-btn);
 background:#fff;font-size:14px;color:var(--text);transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search input::placeholder{color:#9C9A90;}
.nav-search input:focus{outline:none;border-color:var(--copper);box-shadow:0 0 0 2px rgba(192,112,58,.2);}

/* 移动端菜单 */
.mobile-menu{position:relative;}
.mobile-menu>summary{
 list-style:none;cursor:pointer;width:44px;height:44px;align-items:center;justify-content:center;
 display:flex;background:#fff;border:1px solid var(--line);border-radius:var(--radius-btn);
}
.mobile-menu>summary::-webkit-details-marker{display:none;}
.mobile-menu svg{width:20px;height:20px;stroke:var(--ink);}
.mobile-drawer{
 position:fixed;left:0;right:0;top:72px;bottom:0;z-index:49;background:var(--paper);
 border-top:1px solid var(--line);overflow-y:auto;padding:12px 20px 56px;
}
.mobile-drawer .m-link{display:block;padding:14px 2px;font-size:16px;color:var(--text);border-bottom:1px solid var(--line);}
.mobile-drawer .m-link.active{color:var(--copper);font-weight:600;}
.mobile-group-title{padding:18px 2px 6px;font-size:12px;letter-spacing:.1em;color:var(--muted);}
.mobile-drawer .m-sub{display:block;padding:11px 14px;font-size:14px;color:var(--muted);border-bottom:1px solid var(--line);}
.mobile-drawer .m-sub:hover{color:var(--copper);}
.mobile-search{margin-top:20px;}
.mobile-search input{width:100%;min-height:44px;padding:10px 12px;border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;font-size:15px;}
.mobile-search input:focus{outline:none;border-color:var(--copper);box-shadow:0 0 0 2px rgba(192,112,58,.2);}

/* 按钮 */
.btn-primary{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 26px;
 background:var(--copper);border:1px solid var(--copper);color:#fff;border-radius:var(--radius-btn);
 font-size:15px;font-weight:500;
 transition:background .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary:hover{background:var(--copper-deep);border-color:var(--copper-deep);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-secondary{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 26px;
 background:transparent;border:1px solid var(--ink);color:var(--ink);border-radius:var(--radius-btn);
 font-size:15px;font-weight:500;transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.btn-secondary:hover{color:var(--copper);border-color:var(--copper);background:rgba(192,112,58,.06);transform:translateY(-1px);}
.btn-secondary:active{transform:none;}
.btn-sm{min-height:42px;padding:0 18px;font-size:14px;}
.text-link{color:var(--ink);border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease;}
.text-link:hover{color:var(--copper);border-bottom-color:var(--copper);}

/* 分类页头 */
.cat-hero{background:var(--paper-2);border-bottom:1px solid var(--line);}
.cat-hero-inner{padding:44px 0 48px;max-width:840px;}
@media (min-width:1024px){.cat-hero-inner{padding:60px 0 64px;}}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.breadcrumb a:hover{color:var(--copper);}
.breadcrumb .sep{color:#B9B2A4;}
.cat-h1{font-size:clamp(28px,4vw,40px);margin-top:16px;line-height:1.3;}
.cat-lead{margin-top:14px;font-size:16px;line-height:1.85;color:#4A4A43;max-width:640px;}
.cat-meta{margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;font-size:13px;color:var(--muted);}
.cat-meta strong{color:var(--copper);font-weight:600;}
.cat-meta .dot{width:3px;height:3px;border-radius:50%;background:#BEB6A6;display:block;}

/* 速览条 */
.stat-bar{background:#fff;border-bottom:1px solid var(--line);}
.stat-bar-head{padding-top:22px;font-size:13px;letter-spacing:.08em;color:var(--copper);}
.stat-bar-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));padding-bottom:6px;}
@media (min-width:768px){.stat-bar-grid{grid-template-columns:repeat(4,minmax(0,1fr));}}
.stat-cell{padding:20px 16px 24px 0;border-top:1px solid var(--line);}
.stat-cell+.stat-cell{border-left:1px solid var(--line);padding-left:20px;}
@media (max-width:767px){
 .stat-cell:nth-child(odd){border-left:0;padding-left:0;}
 .stat-cell:nth-child(even){border-left:1px solid var(--line);padding-left:20px;}
}
.stat-num{font-family:"Noto Serif SC","Songti SC",serif;font-size:32px;font-weight:700;color:var(--ink);line-height:1.1;}
@media (min-width:1024px){.stat-num{font-size:36px;}}
.stat-num em{font-style:normal;font-family:"Noto Sans SC",sans-serif;font-size:14px;font-weight:500;color:var(--muted);margin-left:5px;}
.stat-label{margin-top:8px;font-size:13px;color:var(--muted);line-height:1.7;}

/* 列表区 */
.list-count{font-size:13px;color:var(--muted);letter-spacing:.02em;}
.card-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.film-card{
 display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
 border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
 transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.film-card:hover{border-color:var(--copper);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.film-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--paper-2);}
.film-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.film-card:hover .film-thumb img{transform:scale(1.03);}
.film-body{padding:15px 17px 17px;display:flex;flex-direction:column;gap:8px;flex:1;}
.film-title{font-size:17px;line-height:1.5;transition:color .2s ease;}
.film-card:hover .film-title{color:var(--copper);}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.film-desc{font-size:14px;line-height:1.7;color:var(--muted);}
.film-meta{margin-top:auto;padding-top:6px;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:#9C9A90;}
.tag{display:inline-flex;align-items:center;padding:2px 10px;border-radius:999px;background:rgba(75,107,124,.1);color:var(--stone);font-size:12px;letter-spacing:.02em;}
.list-more{margin-top:36px;display:flex;justify-content:center;}

/* 热门榜 */
.rank-list{border-top:1px solid var(--line);}
.rank-list>li{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line);}
.rank-num{font-family:"Noto Serif SC","Songti SC",serif;font-size:26px;font-weight:700;color:var(--copper);line-height:1.25;min-width:40px;flex:0 0 auto;}
.rank-title{font-size:17px;line-height:1.55;transition:color .2s ease;}
.rank-list a:hover .rank-title{color:var(--copper);}
.rank-desc{margin-top:5px;font-size:14px;line-height:1.7;color:var(--muted);}
.rank-views{margin-top:6px;font-size:12px;color:#9C9A90;}

/* 分类速览 */
.cat-shortcuts{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.shortcut-grid{display:grid;grid-template-columns:1fr;gap:12px;}
@media (min-width:640px){.shortcut-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.shortcut-grid{grid-template-columns:repeat(4,minmax(0,1fr));}}
.shortcut-card{
 display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 18px;min-height:74px;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
 transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.shortcut-card:hover{border-color:var(--copper);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.shortcut-name{font-family:"Noto Serif SC","Songti SC",serif;font-size:16px;font-weight:600;color:var(--ink);line-height:1.4;}
.shortcut-note{margin-top:4px;font-size:12px;color:var(--muted);}
.shortcut-arrow{color:#B9B2A4;font-size:14px;transition:color .2s ease,transform .2s ease;}
.shortcut-card:hover .shortcut-arrow{color:var(--copper);transform:translateX(2px);}

/* 筛选标签 */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;}
.filter-pill{
 display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border:1px solid var(--line);
 border-radius:999px;background:#fff;font-size:14px;color:var(--muted);
 transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.filter-pill:hover{color:var(--copper);border-color:var(--copper);}
.filter-pill.is-active{background:var(--ink);border-color:var(--ink);color:#fff;}

/* FAQ */
.faq-list{border-top:1px solid var(--line);max-width:860px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
 display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:20px 0;cursor:pointer;
 font-family:"Noto Serif SC","Songti SC",serif;font-size:17px;font-weight:600;color:var(--ink);
 list-style:none;transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--copper);}
.faq-item summary::after{
 content:"+";flex:0 0 auto;font-family:"Noto Sans SC",sans-serif;font-size:20px;line-height:1.4;
 color:var(--copper);transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-answer{padding:0 0 22px;font-size:15px;line-height:1.85;color:#4A4A43;max-width:740px;}

/* 编辑推荐 */
.pick-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.pick-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.pick-card{
 display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
 border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
 transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.pick-card:hover{border-color:var(--copper);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.pick-thumb{aspect-ratio:4/3;overflow:hidden;background:var(--paper-2);}
.pick-thumb img{width:100%;height:100%;object-fit:cover;}
.pick-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;}
.pick-body h3{font-size:18px;line-height:1.5;transition:color .2s ease;}
.pick-card:hover h3{color:var(--copper);}
.pick-body p{font-size:14px;line-height:1.75;color:var(--muted);}

/* 订阅条 */
.cta-strip{
 background-color:var(--ink);
 background-image:linear-gradient(rgba(14,33,29,.94),rgba(14,33,29,.94)),url('/assets/images/backpic/back-5.jpg');
 background-size:cover;background-position:center;
}
.cta-inner{display:grid;gap:22px;padding:36px 0;}
@media (min-width:1024px){.cta-inner{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:44px;padding:44px 0;}}
.cta-inner h2{color:#fff;font-size:23px;line-height:1.4;}
@media (min-width:1024px){.cta-inner h2{font-size:26px;}}
.cta-inner p{margin-top:9px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.72);max-width:640px;}
.subscribe-form{display:flex;flex-wrap:wrap;gap:10px;}
.subscribe-form input{
 flex:1 1 220px;min-width:0;min-height:46px;padding:0 14px;border-radius:var(--radius-btn);
 border:1px solid rgba(255,255,255,.26);background:rgba(255,255,255,.07);color:#fff;font-size:15px;
 transition:border-color .18s ease,box-shadow .18s ease;
}
.subscribe-form input::placeholder{color:rgba(255,255,255,.55);}
.subscribe-form input:focus{outline:none;border-color:var(--copper);box-shadow:0 0 0 2px rgba(192,112,58,.4);}

/* 页脚 */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.78);font-size:14px;line-height:1.8;}
.site-footer .brand-name{color:#fff;}
.site-footer .brand-sub{color:rgba(255,255,255,.5);}
.footer-title{color:#fff;font-family:"Noto Serif SC","Songti SC",serif;font-size:15px;font-weight:600;letter-spacing:.02em;}
.footer-list li+li{margin-top:9px;}
.footer-list a{color:rgba(255,255,255,.75);transition:color .2s ease;}
.footer-list a:hover{color:var(--copper);}
.footer-text{color:rgba(255,255,255,.62);font-size:14px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.55);}