/* roulang page: index */
:root{
  --c-primary:#0F534C;
  --c-primary-strong:#0A3C37;
  --c-accent:#B2703A;
  --c-alert:#C0442E;
  --c-bg:#F7F3EA;
  --c-surface:#FFFFFF;
  --c-dark:#14211F;
  --c-text:#221F1A;
  --c-text-weak:#5E5A50;
  --c-text-mute:#9A9488;
  --c-line:#E4DCCB;
  --c-line-strong:rgba(15,83,76,.18);
  --sh-1:0 2px 6px rgba(20,33,31,.06);
  --sh-2:0 12px 32px rgba(20,33,31,.10);
  --r-btn:8px;
  --r-card:12px;
  --r-img:10px;
  --r-badge:4px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --t:180ms ease-out;
  --pad-section:88px;
}
*,*::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:16px;
  line-height:1.9;
  letter-spacing:.02em;
  color:var(--c-text);
  background:var(--c-bg);
}
h1,h2,h3,h4{
  font-family:var(--font-serif);
  color:var(--c-text);
  letter-spacing:.01em;
  margin:0;
  font-weight:700;
}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.25;}
h2{font-size:clamp(24px,3vw,34px);line-height:1.3;}
h3{font-size:20px;line-height:1.45;}
p{margin:0 0 1.2em;}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);}
a:hover{color:var(--c-accent);}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input{font-family:inherit;}

/* ---------- Foundation 覆盖 ---------- */
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}
.grid-x{margin-left:-12px;margin-right:-12px;}
.grid-x>.cell{padding-left:12px;padding-right:12px;}
.button,.button:focus{
  background:var(--c-primary);
  color:#fff;
  border-radius:var(--r-btn);
  font-family:var(--font-sans);
  letter-spacing:.04em;
}
.accordion{background:transparent;}
.accordion-item{border:0;}

/* ---------- 通用组件 ---------- */
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding-top:var(--pad-section);padding-bottom:var(--pad-section);}
.section-alt{background:#FBF8F1;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.18em;
  color:var(--c-accent);
  margin-bottom:14px;
  text-transform:uppercase;
}
.section-head p{color:var(--c-text-weak);font-size:16px;margin-top:14px;margin-bottom:0;}
.rule-line{height:1px;background:var(--c-line);border:0;margin:0;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.04em;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background-color var(--t),color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-accent);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:44px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn:focus-visible,.nav-link:focus-visible,.menu-toggle:focus-visible,.tag:focus-visible{
  outline:none;box-shadow:0 0 0 3px rgba(15,83,76,.28);
}
.link-arrow{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;border-bottom:2px solid transparent;}
.link-arrow:hover{border-bottom-color:var(--c-primary);}
.link-arrow i{font-size:12px;transition:transform var(--t);}
.link-arrow:hover i{transform:translateX(4px);}

.badge{
  display:inline-block;
  font-size:12px;
  line-height:1.7;
  padding:1px 9px;
  border-radius:var(--r-badge);
  background:rgba(15,83,76,.12);
  color:var(--c-primary);
  letter-spacing:.06em;
}
.badge-copper{background:rgba(178,112,58,.12);color:var(--c-accent);}
.badge-alert{background:rgba(192,68,46,.12);color:var(--c-alert);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,243,234,.96);
  backdrop-filter:saturate(160%) blur(6px);
  border-bottom:1px solid var(--c-line);
}
.header-inner{
  height:72px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-seal{
  width:38px;height:38px;flex:0 0 38px;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#F7F3EA;
  font-family:var(--font-serif);font-size:16px;font-weight:700;
  border-radius:var(--r-badge);
  letter-spacing:.02em;
  box-shadow:var(--sh-1);
}
.brand-name{
  font-family:var(--font-serif);
  font-size:17px;font-weight:700;color:var(--c-text);
  letter-spacing:.04em;white-space:nowrap;
}
.brand:hover .brand-name{color:var(--c-primary);}
.main-nav{display:flex;align-items:center;gap:28px;}
.nav-link{
  font-size:15px;color:var(--c-text-weak);
  padding:6px 0;position:relative;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform var(--t);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--c-primary);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:16px;flex-shrink:0;}
.nav-text-link{font-size:14px;color:var(--c-text-weak);}
.nav-text-link:hover{color:var(--c-accent);}
.menu-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-line);
  background:#fff;border-radius:var(--r-btn);padding:0;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  cursor:pointer;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--c-primary);transition:transform var(--t),opacity var(--t);}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* off-canvas 菜单 */
.off-canvas.position-left{width:82%;background:var(--c-dark);}
.off-canvas .close-button{color:#F7F3EA;top:14px;right:16px;font-size:26px;line-height:1;}
.mobile-panel{padding:76px 26px 36px;}
.mobile-panel .brand-seal{background:var(--c-accent);}
.mobile-panel .brand-name{color:#F7F3EA;font-size:16px;}
.mobile-panel .mobile-brand{display:flex;align-items:center;gap:10px;margin-bottom:28px;}
.mobile-nav li{border-bottom:1px solid rgba(247,243,234,.14);}
.mobile-nav a{
  display:block;padding:15px 0;font-size:15.5px;color:rgba(247,243,234,.86);
}
.mobile-nav a:hover,.mobile-nav a.active{color:#fff;}
.mobile-panel .btn{margin-top:26px;background:var(--c-accent);}
.mobile-panel .btn:hover{background:#8f5829;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:64px 0 72px;
  background:
    linear-gradient(180deg,#FBF8F1 0%,rgba(247,243,234,.4) 100%);
  border-bottom:1px solid var(--c-line);
}
.hero-grid{min-height:560px;align-items:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--c-primary);
  background:rgba(15,83,76,.10);
  border-radius:var(--r-badge);
  padding:5px 12px;margin-bottom:22px;letter-spacing:.06em;
}
.hero-badge i{color:var(--c-accent);}
.hero h1{margin-bottom:20px;max-width:15em;}
.hero-sub{
  font-size:17px;color:var(--c-text-weak);
  max-width:32em;margin-bottom:30px;line-height:1.8;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 28px;}
.hero-points li{
  position:relative;padding-left:14px;
  font-size:14px;color:var(--c-text-weak);
}
.hero-points li::before{
  content:"";position:absolute;left:0;top:.82em;
  width:3px;height:12px;background:var(--c-accent);border-radius:1px;
}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-img);
  box-shadow:var(--sh-2);
  background:#EDE6D8;
}
.hero-figure::after{
  content:"";position:absolute;right:-10px;bottom:-10px;
  width:88px;height:88px;border:1px solid var(--c-line-strong);
  border-radius:var(--r-card);z-index:-1;
}

/* ---------- 精选内容卡（错落栅格） ---------- */
.feature-grid{align-items:stretch;}
.card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
  overflow:hidden;height:100%;
  position:relative;
}
.card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--c-line-strong);}
.card-top-bar{height:3px;background:var(--c-primary);}
.card-body{padding:26px 28px 28px;display:flex;flex-direction:column;height:100%;}
.card h3{margin-bottom:12px;}
.card .card-text{font-size:14.5px;color:var(--c-text-weak);margin-bottom:18px;line-height:1.85;}
.card .link-arrow{margin-top:auto;}
.card-xl .card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.card-xl .card-body{padding:30px 32px 32px;}
.card-sm .card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.card-stack{display:flex;flex-direction:column;gap:24px;height:100%;}
.card-stack .card{flex:1;}
.card-stack .card-body{padding:22px 24px 24px;}
.card-stack .card h3{font-size:17.5px;}
.seal-corner{
  position:absolute;top:14px;right:14px;z-index:2;
  width:30px;height:30px;border-radius:var(--r-badge);
  background:rgba(178,112,58,.92);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-size:12px;
}

/* ---------- 理念区 ---------- */
.story-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-img);box-shadow:var(--sh-1);background:#EDE6D8;
}
.story-text h2{margin-bottom:20px;}
.story-text p{color:var(--c-text-weak);}
.point-list{margin-top:26px;display:flex;flex-direction:column;gap:16px;}
.point-list li{
  position:relative;padding-left:16px;
  font-size:15px;color:var(--c-text);
}
.point-list li::before{
  content:"";position:absolute;left:0;top:.7em;
  width:3px;height:14px;background:var(--c-accent);border-radius:1px;
}
.point-list strong{display:block;font-size:15px;color:var(--c-text);letter-spacing:.02em;}
.point-list span{font-size:14px;color:var(--c-text-weak);}

/* ---------- 流程 ---------- */
.step-grid{gap:24px;}
.step-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px 26px;
  box-shadow:var(--sh-1);
  transition:box-shadow var(--t),transform var(--t);
  height:100%;
}
.step-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.step-num{
  font-family:var(--font-serif);
  font-size:34px;line-height:1;
  color:var(--c-accent);
  margin-bottom:16px;display:block;
}
.step-card h3{font-size:18px;margin-bottom:10px;}
.step-card p{font-size:14.5px;color:var(--c-text-weak);margin:0;}

/* ---------- 信任背书 ---------- */
.trust{
  background:var(--c-dark);
  color:rgba(247,243,234,.9);
  padding-top:var(--pad-section);padding-bottom:var(--pad-section);
}
.trust h2{color:#F7F3EA;margin-bottom:16px;}
.trust .section-head p{color:rgba(247,243,234,.68);}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:52px;}
.stat{
  padding:24px 22px;
  border-left:1px solid rgba(247,243,234,.18);
}
.stat .num{
  font-family:var(--font-serif);
  font-size:clamp(28px,3.4vw,40px);
  line-height:1.1;color:#F7F3EA;display:block;margin-bottom:8px;
}
.stat .num em{font-style:normal;font-size:.6em;color:var(--c-accent);margin-left:4px;}
.stat .label{font-size:13.5px;color:rgba(247,243,234,.62);letter-spacing:.04em;}
.badges{display:flex;flex-wrap:wrap;gap:14px;}
.trust-badge{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13.5px;color:rgba(247,243,234,.82);
  border:1px solid rgba(247,243,234,.22);
  border-radius:var(--r-badge);
  padding:9px 15px;
  transition:border-color var(--t),color var(--t);
}
.trust-badge i{color:var(--c-accent);font-size:13px;}
.trust-badge:hover{border-color:var(--c-accent);color:#fff;}

/* ---------- 最新信息（CMS 列表） ---------- */
.news-list{border-top:1px solid var(--c-line);}
.news-item{
  display:grid;
  grid-template-columns:96px 1fr auto;
  gap:22px;align-items:start;
  padding:22px 18px 22px 14px;
  border-bottom:1px solid var(--c-line);
  color:inherit;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t),background-color var(--t);
}
.news-item:hover{
  transform:translateX(4px);
  box-shadow:var(--sh-1);
  border-color:var(--c-line-strong);
  background:#FCFAF5;
}
.news-date{
  font-size:13px;color:var(--c-text-mute);
  line-height:1.6;padding-top:2px;
}
.news-main h3{font-size:18px;margin-bottom:8px;color:var(--c-text);transition:color var(--t);}
.news-item:hover .news-main h3{color:var(--c-primary);}
.news-main p{
  font-size:14.5px;color:var(--c-text-weak);
  margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-side{padding-top:4px;white-space:nowrap;}
.cms-empty{
  padding:40px 18px;border-bottom:1px solid var(--c-line);
  color:var(--c-text-weak);font-size:15px;
  display:flex;flex-direction:column;align-items:flex-start;gap:16px;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{
  border-bottom:1px solid var(--c-line)!important;
  background:transparent;
}
.accordion-title{
  font-family:var(--font-serif);
  font-size:17px;color:var(--c-text);
  padding:22px 44px 22px 18px;
  border:0;position:relative;transition:color var(--t),padding-left var(--t);
}
.accordion-title::before{
  content:"+";
  position:absolute;right:16px;top:50%;transform:translateY(-50%);
  font-size:20px;color:var(--c-accent);line-height:1;
  transition:transform var(--t),color var(--t);
}
.accordion-item.is-active .accordion-title{color:var(--c-primary);padding-left:24px;}
.accordion-item.is-active .accordion-title::before{content:"−";transform:translateY(-50%) rotate(180deg);color:var(--c-primary);}
.accordion-item.is-active{box-shadow:inset 3px 0 0 var(--c-primary);}
.accordion-content{
  padding:0 44px 24px 24px!important;
  color:var(--c-text-weak);font-size:15px;
  background:transparent!important;
  border:0!important;
}
.accordion-content p:last-child{margin-bottom:0;}

/* ---------- CTA 订阅 ---------- */
.cta-band{
  background:var(--c-dark);
  color:rgba(247,243,234,.9);
  padding:64px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-copy{max-width:560px;}
.cta-copy h2{color:#F7F3EA;margin-bottom:12px;}
.cta-copy p{color:rgba(247,243,234,.66);font-size:15px;margin:0;}
.subscribe{display:flex;gap:12px;flex:1 1 420px;max-width:520px;}
.subscribe input{
  height:48px;flex:1;padding:0 16px;
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:#fff;font-size:15px;color:var(--c-text);
  transition:border-color var(--t),box-shadow var(--t);
}
.subscribe input::placeholder{color:var(--c-text-mute);}
.subscribe input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(15,83,76,.22);}
.subscribe .btn{background:var(--c-accent);}
.subscribe .btn:hover{background:#8f5829;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-dark);
  color:rgba(247,243,234,.72);
  padding:64px 0 0;
  border-top:1px solid rgba(247,243,234,.1);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:48px;}
.footer-brand .brand-name{color:#F7F3EA;}
.footer-brand p{font-size:14px;color:rgba(247,243,234,.6);margin-top:16px;line-height:1.9;max-width:30em;}
.footer-col h4{
  font-family:var(--font-sans);
  font-size:14px;color:#F7F3EA;letter-spacing:.1em;
  margin-bottom:18px;font-weight:600;
}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:rgba(247,243,234,.66);}
.footer-col a:hover{color:var(--c-accent);}
.footer-bottom{
  border-top:1px solid rgba(247,243,234,.12);
  padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,243,234,.5);
}
.to-top{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:rgba(247,243,234,.7);
  border:1px solid rgba(247,243,234,.22);
  border-radius:var(--r-badge);padding:7px 13px;
}
.to-top:hover{color:#fff;border-color:var(--c-accent);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  :root{--pad-section:64px;}
  .main-nav{gap:20px;}
  .nav-link{font-size:14px;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .hero-grid{min-height:auto;}
}
@media screen and (max-width:860px){
  .main-nav,.nav-text-link{display:none;}
  .menu-toggle{display:flex;}
  .header-inner{height:60px;}
  .brand-name{font-size:15.5px;}
  .hero{padding:44px 0 56px;}
  .hero-grid{min-height:440px;}
  .hero-figure{margin-top:36px;}
  .hero-figure::after{display:none;}
}
@media screen and (max-width:768px){
  :root{--pad-section:56px;}
  body{font-size:15.5px;}
  .section-head{margin-bottom:32px;}
  .news-item{grid-template-columns:1fr;gap:10px;padding:20px 14px;}
  .news-date{padding-top:0;}
  .news-side{display:none;}
  .stats{grid-template-columns:1fr;gap:8px;}
  .stat{border-left:0;border-top:1px solid rgba(247,243,234,.16);padding:18px 0;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;}
  .subscribe{width:100%;max-width:100%;}
}
@media screen and (max-width:560px){
  .container,.grid-container{padding-left:18px;padding-right:18px;}
  .grid-x{margin-left:-9px;margin-right:-9px;}
  .grid-x>.cell{padding-left:9px;padding-right:9px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .subscribe{flex-direction:column;}
  .subscribe .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .card-body{padding:22px 20px 24px;}
  .card-xl .card-body{padding:24px 20px 26px;}
  .brand-name{font-size:14.5px;}
  .accordion-title{padding:18px 40px 18px 14px;font-size:16px;}
  .accordion-content{padding:0 26px 20px 16px!important;}
}

/* roulang page: category1 */
:root{
  --c-primary:#0F534C;
  --c-primary-strong:#0A3C37;
  --c-accent:#B2703A;
  --c-alert:#C0442E;
  --c-bg:#F7F3EA;
  --c-surface:#FFFFFF;
  --c-dark:#14211F;
  --c-text:#221F1A;
  --c-text-weak:#5E5A50;
  --c-text-mute:#9A9488;
  --c-line:#E4DCCB;
  --c-line-strong:rgba(15,83,76,.18);
  --sh-1:0 2px 6px rgba(20,33,31,.06);
  --sh-2:0 12px 32px rgba(20,33,31,.10);
  --r-btn:8px;
  --r-card:12px;
  --r-img:10px;
  --r-badge:4px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --tr:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.02em;
  font-weight:400;
}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--c-text);letter-spacing:.01em;margin:0}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.25;font-weight:700}
h2{font-size:clamp(24px,3vw,34px);line-height:1.3;font-weight:700}
h3{font-size:20px;line-height:1.45;font-weight:600}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
a{color:var(--c-primary);text-decoration:none;transition:color var(--tr),border-color var(--tr),background-color var(--tr),box-shadow var(--tr),transform var(--tr)}
a:hover{color:var(--c-accent)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(15,83,76,.32);outline-offset:2px}
img{max-width:100%;display:block;border-radius:var(--r-img)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
::selection{background:rgba(178,112,58,.24)}

/* Foundation 覆盖 */
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px}
.button{background-color:var(--c-primary);border-radius:var(--r-btn);font-family:var(--font-sans)}
.button:hover,.button:focus{background-color:var(--c-accent)}
.accordion{background:transparent;border:0}
.accordion-item{border:0}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;margin:0;
  border:0;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;line-height:1;letter-spacing:.04em;
  cursor:pointer;white-space:nowrap;
  transition:background-color var(--tr),color var(--tr),box-shadow var(--tr),transform var(--tr),border-color var(--tr);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-accent);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1)}
.btn-outline{background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary)}
.btn-outline:hover{background:var(--c-primary);color:#fff;transform:translateY(-2px)}
.btn-outline:active{transform:translateY(1px)}
.btn-text{background:transparent;color:var(--c-primary);padding:0 6px;height:auto;border-bottom:2px solid transparent}
.btn-text:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);transform:none}
.btn-on-dark{background:var(--c-accent);color:#fff}
.btn-on-dark:hover{background:#c9803f;color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-ghost-dark{background:transparent;color:#F3EEE2;border:1.5px solid rgba(243,238,226,.5)}
.btn-ghost-dark:hover{background:rgba(243,238,226,.12);color:#fff;border-color:rgba(243,238,226,.8)}

/* 徽章与标签 */
.badge{display:inline-block;padding:3px 10px;border-radius:var(--r-badge);font-size:12.5px;line-height:1.6;letter-spacing:.04em;background:rgba(15,83,76,.10);color:var(--c-primary)}
.badge-copper{background:rgba(178,112,58,.14);color:#8d5729}
.badge-alert{background:rgba(192,68,46,.12);color:var(--c-alert)}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.16em;color:var(--c-accent);margin-bottom:12px}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:120;background:var(--c-bg);border-bottom:1px solid var(--c-line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.brand{display:flex;align-items:center;gap:12px;color:var(--c-text)}
.brand:hover{color:var(--c-text)}
.brand-seal{
  width:40px;height:40px;flex:0 0 40px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#F3EEE2;border-radius:6px;
  font-family:var(--font-serif);font-size:15px;letter-spacing:0;line-height:1;font-weight:700;
  box-shadow:inset 0 0 0 1.5px rgba(243,238,226,.45);
}
.brand-name{font-family:var(--font-serif);font-size:18px;font-weight:700;letter-spacing:.03em}
.main-nav{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;font-size:15px;color:var(--c-text-weak);padding:6px 0;letter-spacing:.03em}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--c-primary);transition:width var(--tr)}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--c-primary);font-weight:500}
.nav-link.active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:16px}
.header-actions .btn{height:44px}
.menu-toggle{
  display:none;width:44px;height:44px;flex:0 0 44px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--c-line);border-radius:var(--r-btn);
  color:var(--c-primary);font-size:18px;cursor:pointer;
}
.menu-toggle:hover{border-color:var(--c-line-strong);color:var(--c-accent)}

/* Off-canvas 移动菜单 */
.off-canvas{background:var(--c-surface);width:82%}
.oc-head{display:flex;align-items:center;gap:10px;padding:18px 20px;border-bottom:1px solid var(--c-line)}
.oc-nav{display:flex;flex-direction:column;padding:8px 0}
.oc-nav a{padding:15px 20px;font-size:16px;color:var(--c-text);border-left:3px solid transparent}
.oc-nav a:hover{background:rgba(15,83,76,.05);color:var(--c-primary)}
.oc-nav a.active{color:var(--c-primary);border-left-color:var(--c-primary);background:rgba(15,83,76,.05)}
.oc-cta{padding:18px 20px}
.oc-cta .btn{width:100%}

/* 短横幅 */
.page-banner{
  position:relative;display:flex;align-items:center;min-height:300px;
  background-image:linear-gradient(rgba(10,60,55,.62),rgba(10,60,55,.44)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.page-banner .banner-inner{width:100%;padding:44px 0;color:#fff}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.8);margin-bottom:16px}
.breadcrumb a{color:rgba(255,255,255,.86)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.55)}
.breadcrumb .current{color:#fff}
.page-banner h1{color:#fff;max-width:960px}
.banner-lead{margin-top:16px;max-width:760px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.9)}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.banner-tags span{display:inline-block;padding:5px 12px;border-radius:var(--r-badge);font-size:13px;background:rgba(255,255,255,.14);color:#F3EEE2;border:1px solid rgba(255,255,255,.22)}

/* 板块 */
.section{padding:88px 0}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head p{margin-top:14px;color:var(--c-text-weak);font-size:16px}
.rule{width:64px;height:3px;background:var(--c-accent);border-radius:2px;margin:0 0 22px}
.section-head.center .rule{margin-left:auto;margin-right:auto}

/* 数据条 */
.stat-strip{background:var(--c-primary-strong);padding:44px 0}
.stat-item{padding:14px 8px;text-align:center;border-right:1px solid rgba(247,243,234,.18)}
.stat-item:last-child{border-right:0}
.stat-item strong{display:block;font-family:var(--font-serif);font-size:clamp(26px,2.6vw,34px);color:#F3EEE2;line-height:1.2;letter-spacing:.02em}
.stat-item span{display:block;margin-top:8px;font-size:13.5px;color:rgba(243,238,226,.72)}

/* 图文交替 */
.feature-row{align-items:center}
.feature-media{margin-bottom:28px}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--c-line);box-shadow:var(--sh-2)}
.feature-media figcaption{margin-top:10px;font-size:13px;color:var(--c-text-mute);text-align:center}
.feature-body{padding:0 0 8px}
.feature-body h2{margin-bottom:16px}
.feature-body > p{color:var(--c-text-weak)}
.point-list{margin-top:24px;display:flex;flex-direction:column;gap:18px}
.point-list li{position:relative;padding-left:18px;border-left:3px solid var(--c-accent)}
.point-list h3{font-size:18px;margin-bottom:6px}
.point-list p{color:var(--c-text-weak);font-size:15.5px;margin:0}
@media screen and (min-width:1024px){
  .feature-row{gap:56px}
  .feature-row.reverse .feature-media{order:2}
  .feature-row.reverse .feature-body{order:1}
}
@media screen and (min-width:768px) and (max-width:1023px){
  .feature-row{gap:32px}
}

/* 步骤列表 */
.step-list{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--c-line)}
.step-item{display:flex;gap:22px;padding:26px 0;border-bottom:1px solid var(--c-line);transition:background-color var(--tr),padding-left var(--tr)}
.step-item:hover{background:rgba(15,83,76,.035);padding-left:12px}
.step-num{
  flex:0 0 52px;height:52px;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-size:20px;color:var(--c-primary);
  background:rgba(15,83,76,.08);border-radius:10px;
}
.step-body h3{margin-bottom:6px}
.step-body p{color:var(--c-text-weak);font-size:15.5px;margin:0}

/* 对比卡 */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.compare-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);border-top:3px solid var(--c-primary);transition:box-shadow var(--tr),transform var(--tr)}
.compare-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.compare-card h3{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.compare-card h3 i{color:var(--c-accent);font-size:17px}
.compare-card ul{display:flex;flex-direction:column;gap:10px}
.compare-card li{position:relative;padding-left:16px;font-size:15.5px;color:var(--c-text-weak)}
.compare-card li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;background:var(--c-accent);border-radius:2px}
.compare-card .tip{margin-top:18px;padding:12px 14px;border-radius:var(--r-badge);background:rgba(178,112,58,.10);color:#8d5729;font-size:14px;line-height:1.75}

/* 准备清单 */
.check-panel{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1)}
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 28px;margin-top:20px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--c-text-weak)}
.check-list i{color:var(--c-primary);margin-top:7px;font-size:14px}
.check-list strong{display:block;color:var(--c-text);font-weight:500;font-size:16px}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion-item{border-bottom:1px solid var(--c-line)}
.accordion-title{
  position:relative;display:block;background:transparent;border:0;border-left:3px solid transparent;
  padding:20px 56px 20px 18px;font-family:var(--font-serif);font-size:17.5px;font-weight:600;color:var(--c-text);
  transition:color var(--tr),background-color var(--tr),border-color var(--tr);
}
.accordion-title:hover{color:var(--c-primary);background:rgba(15,83,76,.03)}
.accordion-title::before{
  content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  font-family:var(--font-sans);font-size:22px;line-height:1;color:var(--c-accent);
  transition:transform var(--tr),color var(--tr);
}
.accordion-item.is-active .accordion-title{color:var(--c-primary);border-left-color:var(--c-primary);background:rgba(15,83,76,.04)}
.accordion-item.is-active .accordion-title::before{content:"−";color:var(--c-primary);transform:translateY(-50%) rotate(180deg)}
.accordion-content{padding:0 56px 24px 18px;background:transparent;border:0;color:var(--c-text-weak);font-size:15.5px;line-height:1.9}

/* CTA 横幅 */
.cta-band{background:var(--c-dark);padding:72px 0}
.cta-band h2{color:#F3EEE2;font-size:clamp(22px,2.6vw,30px)}
.cta-band p{color:rgba(243,238,226,.74);margin-top:14px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px}
@media screen and (min-width:768px){
  .cta-actions{justify-content:flex-end;margin-top:0}
}

/* 页脚 */
.site-footer{background:var(--c-dark);color:rgba(243,238,226,.78);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand .brand-seal{background:rgba(243,238,226,.12);color:#F3EEE2;box-shadow:inset 0 0 0 1.5px rgba(243,238,226,.35)}
.footer-brand .brand-name{color:#F3EEE2}
.footer-brand p{margin-top:18px;font-size:14.5px;line-height:1.9;color:rgba(243,238,226,.66);max-width:360px}
.footer-col h4{font-family:var(--font-serif);font-size:16px;color:#F3EEE2;margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{color:rgba(243,238,226,.72);font-size:14.5px}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:20px 0;border-top:1px solid rgba(243,238,226,.14);font-size:13.5px;color:rgba(243,238,226,.6);
}
.to-top{color:rgba(243,238,226,.78);display:inline-flex;align-items:center;gap:8px}
.to-top:hover{color:var(--c-accent)}

/* 响应式 */
@media screen and (max-width:1023px){
  .section{padding:64px 0}
  .main-nav{gap:18px}
  .nav-link{font-size:14px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
}
@media screen and (max-width:767px){
  .main-nav,.header-actions .btn-outline{display:none}
  .header-actions .btn-text{display:none}
  .menu-toggle{display:inline-flex}
  .header-inner{height:60px}
  .brand-seal{width:36px;height:36px;flex:0 0 36px;font-size:13.5px}
  .brand-name{font-size:16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .page-banner{min-height:260px}
  .page-banner .banner-inner{padding:36px 0}
  .compare-grid,.check-list{grid-template-columns:1fr}
  .stat-item{border-right:0;border-bottom:1px solid rgba(247,243,234,.18)}
  .stat-item:last-child{border-bottom:0}
  .step-item{gap:16px}
  .step-num{flex:0 0 44px;height:44px;font-size:17px}
  .accordion-content{padding-right:18px}
  .cta-band{padding:56px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{justify-content:flex-start}
}
@media screen and (max-width:520px){
  .grid-container{padding-left:18px;padding-right:18px}
  .feature-media img{aspect-ratio:16/10}
  .btn{width:100%}
  .btn.btn-inline{width:auto}
  .cta-actions{flex-direction:column;align-items:stretch}
  .to-top{width:auto}
}

/* roulang page: article */
:root{
  --c-primary:#0F534C;
  --c-primary-strong:#0A3C37;
  --c-accent:#B2703A;
  --c-alert:#C0442E;
  --c-bg:#F7F3EA;
  --c-surface:#FFFFFF;
  --c-dark:#14211F;
  --c-text:#221F1A;
  --c-text-weak:#5E5A50;
  --c-text-mute:#9A9488;
  --c-line:#E4DCCB;
  --c-line-strong:rgba(15,83,76,.18);
  --sh-1:0 2px 6px rgba(20,33,31,.06);
  --sh-2:0 12px 32px rgba(20,33,31,.10);
  --r-btn:8px;
  --r-card:12px;
  --r-img:10px;
  --r-badge:4px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --t:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.02em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t);}
a:hover{color:var(--c-accent);}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input{font-family:inherit;}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}
::selection{background:rgba(15,83,76,.16);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;line-height:1;letter-spacing:.02em;
  border:1.5px solid transparent;background:transparent;
  transition:all var(--t);
}
.btn-sm{height:44px;padding:0 20px;font-size:14.5px;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-accent);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1);}
.btn-ghost{border-color:var(--c-primary);color:var(--c-primary);background:transparent;}
.btn-ghost:hover{background:var(--c-primary);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:#F7F3EA;color:var(--c-dark);}
.btn-light:hover{background:var(--c-accent);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-outline-light{border-color:rgba(247,243,234,.45);color:#F7F3EA;}
.btn-outline-light:hover{background:rgba(247,243,234,.12);border-color:#F7F3EA;color:#fff;}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid rgba(15,83,76,.30);outline-offset:2px;}

/* ---------- badge ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-badge);font-size:12.5px;line-height:1;
  background:rgba(15,83,76,.08);color:var(--c-primary);white-space:nowrap;
}
.badge-copper{background:rgba(178,112,58,.12);color:var(--c-accent);}
.badge-alert{background:rgba(192,68,46,.10);color:var(--c-alert);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(247,243,234,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-seal{
  width:38px;height:38px;border-radius:6px;flex-shrink:0;
  background:var(--c-primary);color:#F7F3EA;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-size:15px;letter-spacing:0;
  box-shadow:inset 0 0 0 1px rgba(247,243,234,.35);
}
.brand-name{font-family:var(--font-serif);font-size:19px;color:var(--c-text);letter-spacing:.02em;}
.main-nav{display:flex;align-items:center;gap:28px;}
.nav-link{position:relative;font-size:15px;color:var(--c-text-weak);padding:7px 0;}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
  background:var(--c-primary);transition:width var(--t);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after,.nav-link.active::after{width:100%;}
.nav-link.active{color:var(--c-primary);font-weight:500;}
.nav-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-line);
  border-radius:var(--r-btn);background:var(--c-surface);
  padding:0;position:relative;
}
.nav-toggle span{
  display:block;width:18px;height:2px;margin:3px auto;border-radius:2px;
  background:var(--c-text);transition:transform var(--t),opacity var(--t);
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,33,31,.42);
  z-index:150;opacity:0;pointer-events:none;transition:opacity var(--t);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.mobile-drawer{
  position:fixed;top:0;left:0;bottom:0;width:82%;max-width:340px;
  background:var(--c-surface);z-index:160;padding:22px 22px 30px;
  transform:translateX(-102%);transition:transform 220ms ease-out;
  box-shadow:var(--sh-2);overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;gap:10px;padding-bottom:18px;border-bottom:1px solid var(--c-line);}
.drawer-close{
  margin-left:auto;width:36px;height:36px;border:1px solid var(--c-line);
  border-radius:var(--r-btn);background:transparent;color:var(--c-text-weak);
  transition:all var(--t);display:flex;align-items:center;justify-content:center;
}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary);}
.drawer-nav{display:flex;flex-direction:column;margin:18px 0 24px;}
.drawer-nav a{
  padding:14px 0;font-size:15.5px;color:var(--c-text-weak);
  border-bottom:1px solid var(--c-line);transition:all var(--t);
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--c-primary);padding-left:6px;}
.drawer-cta{width:100%;}

/* ---------- article head ---------- */
.article-head{padding:34px 0 42px;background:linear-gradient(180deg,#FFFDF8 0%,var(--c-bg) 100%);}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-mute);margin-bottom:20px;}
.breadcrumb a{color:var(--c-text-weak);}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:#CFC6B2;}
.breadcrumb .current{color:var(--c-text-weak);}
.article-meta-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px;}
.article-head h1{
  font-family:var(--font-serif);
  font-size:clamp(26px,3.6vw,40px);
  line-height:1.34;
  letter-spacing:.01em;
  max-width:900px;
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px;color:var(--c-text-mute);margin-top:20px;}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--c-accent);font-size:12px;}
.copper-rule{height:1px;background:linear-gradient(90deg,var(--c-accent) 0%,rgba(178,112,58,.10) 100%);margin-top:28px;}

/* ---------- article body ---------- */
.article-wrap{padding:52px 0 8px;}
.article-content{
  max-width:820px;margin:0 auto;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:46px 50px 50px;box-shadow:var(--sh-1);
}
.article-content>*:first-child{margin-top:0;}
.article-content p{margin:0 0 1.25em;line-height:1.95;color:var(--c-text);}
.article-content h2{
  position:relative;font-family:var(--font-serif);
  font-size:clamp(21px,2.2vw,25px);line-height:1.42;
  margin:48px 0 18px;padding-left:15px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;
  border-radius:2px;background:var(--c-primary);
}
.article-content h3{font-family:var(--font-serif);font-size:20px;line-height:1.45;margin:32px 0 14px;}
.article-content h4{font-size:17px;margin:24px 0 10px;}
.article-content blockquote{
  margin:26px 0;padding:18px 24px;background:var(--c-bg);
  border-left:4px solid var(--c-primary);border-radius:0 var(--r-btn) var(--r-btn) 0;
  color:var(--c-text-weak);
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:var(--r-img);margin:26px auto;box-shadow:var(--sh-1);}
.article-content figure{margin:26px 0;}
.article-content figcaption{text-align:center;font-size:13px;color:var(--c-text-mute);margin-top:10px;}
.article-content ul,.article-content ol{margin:0 0 1.4em;}
.article-content ul li{position:relative;padding-left:20px;margin-bottom:10px;line-height:1.9;}
.article-content ul li::before{
  content:"";position:absolute;left:2px;top:.82em;width:7px;height:7px;
  border-radius:2px;background:var(--c-accent);
}
.article-content ol{counter-reset:item;}
.article-content ol li{position:relative;padding-left:32px;margin-bottom:12px;line-height:1.9;counter-increment:item;}
.article-content ol li::before{
  content:counter(item);position:absolute;left:0;top:.42em;
  width:20px;height:20px;border-radius:var(--r-badge);
  background:rgba(178,112,58,.14);color:var(--c-accent);
  font-size:12px;line-height:20px;text-align:center;font-weight:600;
}
.article-content a{color:var(--c-primary);border-bottom:1px solid rgba(15,83,76,.30);}
.article-content a:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-content th,.article-content td{border:1px solid var(--c-line);padding:11px 14px;text-align:left;}
.article-content th{background:var(--c-bg);font-weight:600;}
.article-content hr{border:none;height:1px;background:var(--c-line);margin:36px 0;}
.empty-state{text-align:center;padding:36px 10px;}
.empty-state i{font-size:34px;color:var(--c-accent);}
.empty-state h3{font-family:var(--font-serif);font-size:22px;margin:18px 0 10px;}
.empty-state p{color:var(--c-text-weak);margin-bottom:24px;}

.article-tags{
  max-width:820px;margin:26px auto 0;display:flex;flex-wrap:wrap;
  gap:10px;align-items:center;
}
.article-tags .tag-label{font-size:13px;color:var(--c-text-mute);margin-right:4px;}
.tag-link{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:var(--r-badge);background:rgba(15,83,76,.07);
  color:var(--c-primary);font-size:13px;transition:all var(--t);
}
.tag-link:hover{background:var(--c-primary);color:#fff;}
.article-back{max-width:820px;margin:26px auto 0;}

/* ---------- section base ---------- */
.section{padding:88px 0;}
.section-tight{padding:72px 0;}
.section-head{margin-bottom:40px;max-width:720px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--c-accent);letter-spacing:.08em;margin-bottom:12px;
}
.section-head .eyebrow::before{content:"";width:22px;height:1px;background:var(--c-accent);}
.section-head h2{
  font-family:var(--font-serif);
  font-size:clamp(23px,2.8vw,32px);line-height:1.32;
}
.section-head p{color:var(--c-text-weak);margin-top:14px;font-size:15.5px;}

/* ---------- service cards ---------- */
.service-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:28px 26px;height:100%;
  box-shadow:var(--sh-1);position:relative;overflow:hidden;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.service-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--c-primary);opacity:.9;
}
.service-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-line-strong);}
.service-card .icon-box{
  width:44px;height:44px;border-radius:10px;
  background:rgba(15,83,76,.08);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:18px;
  margin-bottom:18px;
}
.service-card h3{font-family:var(--font-serif);font-size:19px;margin-bottom:10px;}
.service-card p{color:var(--c-text-weak);font-size:14.5px;line-height:1.85;margin-bottom:16px;}
.text-link{font-size:14.5px;color:var(--c-primary);font-weight:500;display:inline-flex;align-items:center;gap:6px;}
.text-link i{font-size:12px;transition:transform var(--t);}
.text-link:hover i{transform:translateX(3px);}

/* ---------- related list cards ---------- */
.related-card{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:16px;height:100%;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-line-strong);}
.related-card img{width:104px;height:78px;object-fit:cover;border-radius:var(--r-img);flex-shrink:0;background:var(--c-line);}
.related-card h3{font-size:15.5px;line-height:1.55;margin:8px 0 8px;font-weight:600;}
.related-card h3 a{color:var(--c-text);}
.related-card h3 a:hover{color:var(--c-primary);}
.related-card p{font-size:13.5px;color:var(--c-text-weak);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* ---------- accordion ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion{border:none;background:transparent;margin:0;}
.accordion-item{
  border:1px solid var(--c-line);border-radius:var(--r-card);
  background:var(--c-surface);margin-bottom:14px;overflow:hidden;
  box-shadow:var(--sh-1);transition:border-color var(--t);
}
.accordion-item.is-active{border-color:var(--c-line-strong);}
.accordion-title{
  display:block;position:relative;border:none;background:transparent;
  font-size:16px;font-weight:500;color:var(--c-text);
  padding:20px 56px 20px 24px;line-height:1.6;
  transition:color var(--t),box-shadow var(--t),background-color var(--t);
}
.accordion-title:hover{color:var(--c-primary);background:rgba(15,83,76,.03);}
.accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;
  transform:translateY(-50%);font-size:20px;line-height:1;
  color:var(--c-accent);transition:transform var(--t);
}
.accordion-item.is-active .accordion-title{color:var(--c-primary);box-shadow:inset 3px 0 0 var(--c-primary);}
.accordion-item.is-active .accordion-title::before{content:"−";}
.accordion-content{
  border:none;padding:0 26px 22px 24px;background:transparent;
  color:var(--c-text-weak);font-size:15px;line-height:1.9;
}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--c-dark);color:#F7F3EA;border-radius:var(--r-card);
  padding:52px 48px;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;
  border:1px solid rgba(178,112,58,.35);border-radius:50%;
}
.cta-band h2{font-family:var(--font-serif);font-size:clamp(22px,2.6vw,30px);color:#F7F3EA;line-height:1.35;}
.cta-band p{color:rgba(247,243,234,.72);margin-top:14px;font-size:15px;max-width:640px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-dark);color:rgba(247,243,234,.78);padding:64px 0 0;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand-name{color:#F7F3EA;}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(247,243,234,.62);margin-top:16px;max-width:340px;}
.footer-col h4{font-size:15px;color:#F7F3EA;margin-bottom:18px;font-family:var(--font-serif);font-weight:600;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{font-size:14px;color:rgba(247,243,234,.70);}
.footer-col ul li a:hover{color:var(--c-accent);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:14px;margin-top:52px;padding:22px 0;font-size:13px;
  color:rgba(247,243,234,.55);border-top:1px solid rgba(247,243,234,.12);
}
.to-top{color:rgba(247,243,234,.72);font-size:13px;}
.to-top:hover{color:var(--c-accent);}

/* ---------- responsive ---------- */
@media screen and (max-width:1024px){
  .main-nav{gap:18px;}
  .nav-link{font-size:14px;}
  .section{padding:64px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .article-content{padding:38px 34px 42px;}
}
@media screen and (max-width:768px){
  .header-inner{height:60px;}
  .main-nav{display:none;}
  .nav-toggle{display:block;}
  .nav-actions .btn-sm{display:none;}
  .brand-name{font-size:17px;}
  .brand-seal{width:34px;height:34px;font-size:13.5px;}
  .article-head{padding:24px 0 30px;}
  .article-wrap{padding:34px 0 8px;}
  .article-content{padding:28px 22px 32px;border-radius:10px;}
  .article-content h2{margin-top:36px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  .cta-band{padding:36px 24px;}
  .related-card{flex-direction:row;}
  .site-footer{margin-top:56px;padding-top:48px;}
}
@media screen and (max-width:560px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .article-meta{gap:8px 16px;}
  .related-card img{width:84px;height:66px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .accordion-title{padding:16px 46px 16px 18px;font-size:15px;}
  .accordion-content{padding:0 18px 18px;}
}

/* roulang page: category3 */
:root{
  --c-primary:#0F534C;
  --c-primary-strong:#0A3C37;
  --c-accent:#B2703A;
  --c-alert:#C0442E;
  --c-bg:#F7F3EA;
  --c-surface:#FFFFFF;
  --c-dark:#14211F;
  --c-text:#221F1A;
  --c-text-weak:#5E5A50;
  --c-text-mute:#9A9488;
  --c-line:#E4DCCB;
  --c-line-strong:rgba(15,83,76,.18);
  --sh-1:0 2px 6px rgba(20,33,31,.06);
  --sh-2:0 12px 32px rgba(20,33,31,.10);
  --r-btn:8px;
  --r-card:12px;
  --r-img:10px;
  --r-badge:4px;
  --font-title:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --t:180ms ease-out;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.02em;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t),background var(--t),border-color var(--t);}
a:hover{color:var(--c-accent);}
img{max-width:100%;display:block;border-radius:var(--r-img);}
h1,h2,h3,h4{font-family:var(--font-title);letter-spacing:.01em;margin:0;color:var(--c-text);}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(15,83,76,.28);outline-offset:2px;}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}
/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,243,234,.94);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--c-line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;gap:24px;
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-seal{
  width:38px;height:38px;border-radius:6px;
  background:linear-gradient(160deg,var(--c-primary),var(--c-primary-strong));
  color:#F3EDE0;font-family:var(--font-title);font-size:15px;font-weight:700;
  display:flex;align-items:center;justify-content:center;letter-spacing:.04em;
  box-shadow:0 2px 6px rgba(10,60,55,.28);
}
.brand-name{font-family:var(--font-title);font-size:18px;font-weight:700;color:var(--c-text);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;font-size:15px;color:var(--c-text-weak);padding:6px 0;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link.active{color:var(--c-primary);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--c-primary);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:14px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;cursor:pointer;
  border:1.5px solid transparent;transition:all var(--t);
}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary);margin:0;}
.btn-primary:hover,.btn-primary:focus{background:var(--c-accent);border-color:var(--c-accent);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--c-primary);color:#fff;}
.btn-onDark{background:transparent;color:#F3EDE0;border-color:rgba(243,237,224,.5);}
.btn-onDark:hover{background:#F3EDE0;color:var(--c-dark);border-color:#F3EDE0;}
.btn-nav{height:44px;padding:0 20px;}
.link-quiet{font-size:15px;color:var(--c-text-weak);}
.link-quiet:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);
  background:var(--c-surface);border-radius:var(--r-btn);cursor:pointer;
  align-items:center;justify-content:center;font-size:18px;color:var(--c-primary);
}
/* ============ off canvas ============ */
.off-canvas{background:var(--c-dark);}
.off-canvas-inner{padding:26px 22px;}
.off-canvas .brand-name{color:#F3EDE0;}
.off-canvas-list{margin:26px 0 0;display:flex;flex-direction:column;gap:4px;}
.off-canvas-list a{
  display:block;padding:13px 12px;border-radius:var(--r-btn);
  color:rgba(243,237,224,.82);font-size:15.5px;
}
.off-canvas-list a:hover{background:rgba(243,237,224,.08);color:#fff;}
.off-canvas-list a.active{background:rgba(178,112,58,.22);color:#F3EDE0;font-weight:600;}
.off-canvas-cta{margin-top:26px;}
.off-canvas-cta .btn{width:100%;}
.off-canvas-close{
  background:transparent;border:0;color:rgba(243,237,224,.7);font-size:20px;cursor:pointer;padding:6px;
}
/* ============ hero ============ */
.page-hero{
  position:relative;min-height:310px;display:flex;align-items:center;
  background:linear-gradient(rgba(10,60,55,.66),rgba(10,60,55,.52)),
             url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#F3EDE0;
  border-bottom:3px solid var(--c-accent);
}
.page-hero .grid-container{width:100%;padding-top:44px;padding-bottom:44px;}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:rgba(243,237,224,.78);margin-bottom:16px;
}
.breadcrumb a{color:rgba(243,237,224,.86);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:rgba(243,237,224,.45);}
.breadcrumb .current{color:#F3EDE0;font-weight:600;}
.page-hero h1{
  color:#fff;font-size:clamp(28px,4vw,42px);line-height:1.28;
  max-width:900px;margin-bottom:14px;
}
.hero-lead{
  color:rgba(243,237,224,.9);font-size:16px;max-width:720px;margin:0;
}
/* ============ main / sections ============ */
main{display:block;}
.section{padding:88px 0;}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:760px;margin-bottom:42px;}
.section-head h2{
  font-size:clamp(24px,3vw,34px);line-height:1.3;margin-bottom:14px;
  padding-left:16px;border-left:4px solid var(--c-primary);
}
.section-head p{color:var(--c-text-weak);font-size:16px;margin:0;}
.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:.14em;color:var(--c-accent);
  font-weight:600;margin-bottom:12px;
}
/* ============ 卡片墙 ============ */
.qa-card{
  position:relative;height:100%;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.qa-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-primary);}
.qa-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-line-strong);}
.qa-card .card-num{
  position:absolute;top:18px;right:20px;
  font-family:var(--font-title);font-size:14px;color:var(--c-accent);
  background:rgba(178,112,58,.12);border-radius:var(--r-badge);
  padding:2px 9px;letter-spacing:.06em;
}
.qa-card h3{font-size:19px;line-height:1.5;margin:6px 0 12px;padding-right:52px;}
.qa-card p{color:var(--c-text-weak);font-size:15px;margin-bottom:14px;}
.mini-list li{
  position:relative;padding-left:16px;font-size:14.5px;color:var(--c-text-weak);
  line-height:1.8;
}
.mini-list li::before{
  content:"";position:absolute;left:0;top:12px;width:7px;height:7px;
  background:var(--c-accent);border-radius:2px;
}
/* ============ 标签云 ============ */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px;}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--r-badge);
  background:rgba(15,83,76,.08);color:var(--c-primary);
  font-size:14px;border:1px solid rgba(15,83,76,.14);
}
.tag:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.tag.is-accent{background:rgba(178,112,58,.12);color:var(--c-accent);border-color:rgba(178,112,58,.22);}
.tag.is-accent:hover{background:var(--c-accent);color:#fff;border-color:var(--c-accent);}
.tag-note{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--sh-1);
}
.tag-note i{color:var(--c-primary);font-size:18px;margin-top:6px;}
.tag-note p{margin:0;color:var(--c-text-weak);font-size:15px;}
/* ============ 步骤 ============ */
.step-grid{display:grid;gap:24px;grid-template-columns:repeat(3,1fr);}
.step-card{
  background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t);
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.step-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--r-badge);
  background:var(--c-primary);color:#fff;font-family:var(--font-title);font-size:16px;
  margin-bottom:16px;
}
.step-card h3{font-size:19px;margin-bottom:10px;}
.step-card p{color:var(--c-text-weak);font-size:15px;margin:0;}
.media-block{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
.media-block img{border-radius:var(--r-img);box-shadow:var(--sh-2);object-fit:cover;aspect-ratio:4/3;width:100%;}
.media-body h3{font-size:22px;margin-bottom:14px;}
.media-body p{color:var(--c-text-weak);}
.dot-list li{
  position:relative;padding-left:20px;margin-bottom:10px;color:var(--c-text-weak);font-size:15.5px;
}
.dot-list li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:14px;background:var(--c-accent);border-radius:2px;
}
.callout.tip-callout{
  background:rgba(15,83,76,.06);border:1px solid var(--c-line-strong);
  border-left:4px solid var(--c-primary);border-radius:var(--r-btn);
  color:var(--c-text-weak);font-size:15px;padding:18px 22px;margin:28px 0 0;
}
/* ============ FAQ ============ */
.accordion{border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;background:var(--c-surface);box-shadow:var(--sh-1);}
.accordion .accordion-item{border-bottom:1px solid var(--c-line);}
.accordion .accordion-item:last-child{border-bottom:0;}
.accordion .accordion-title{
  position:relative;display:block;padding:22px 62px 22px 24px;
  font-family:var(--font-title);font-size:17.5px;color:var(--c-text);
  border:0;transition:color var(--t),background var(--t);
}
.accordion .accordion-title::before{
  content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:22px;color:var(--c-primary);line-height:1;transition:transform var(--t);
}
.accordion .accordion-title:hover{color:var(--c-primary);background:rgba(15,83,76,.04);}
.accordion .accordion-item.is-active .accordion-title{color:var(--c-primary);}
.accordion .accordion-item.is-active .accordion-title::before{content:"−";transform:translateY(-50%) rotate(180deg);}
.accordion .accordion-content{padding:0 24px 24px;color:var(--c-text-weak);font-size:15.5px;border:0;}
.accordion .accordion-content p:last-child{margin-bottom:0;}
/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(150deg,#14211F,#0A3C37);
  color:#F3EDE0;padding:72px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.cta-inner p{color:rgba(243,237,224,.78);margin:0;max-width:620px;font-size:15.5px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
/* ============ footer ============ */
.site-footer{background:var(--c-dark);color:rgba(243,237,224,.78);padding:64px 0 0;font-size:15px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid rgba(243,237,224,.12);
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-name{color:#F3EDE0;}
.footer-brand p{font-size:14.5px;line-height:1.85;color:rgba(243,237,224,.66);margin:0;}
.footer-col h4{
  font-family:var(--font-body);font-size:15px;color:#F3EDE0;font-weight:600;
  margin-bottom:16px;letter-spacing:.04em;
}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:rgba(243,237,224,.72);font-size:14.5px;}
.footer-col a:hover{color:var(--c-accent);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding:22px 0 26px;font-size:13.5px;color:rgba(243,237,224,.58);
}
.to-top{color:rgba(243,237,224,.72);display:inline-flex;align-items:center;gap:7px;}
.to-top:hover{color:var(--c-accent);}
/* ============ responsive ============ */
@media (max-width:1024px){
  .main-nav{gap:18px;}
  .nav-link{font-size:14px;}
  .section{padding:64px 0;}
  .step-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:860px){
  .main-nav{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-actions .btn-nav{display:none;}
  .header-inner{height:60px;}
  .media-block{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:768px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .section{padding:56px 0;}
  .page-hero{min-height:280px;}
  .page-hero .grid-container{padding-top:34px;padding-bottom:34px;}
  .step-grid{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:560px){
  .brand-name{font-size:16px;max-width:180px;white-space:normal;line-height:1.3;}
  .footer-grid{grid-template-columns:1fr;}
  .qa-card{padding:22px;}
  .qa-card h3{font-size:17.5px;padding-right:46px;}
  .tag{font-size:13.5px;padding:8px 13px;}
  .cta-actions .btn{width:100%;}
  .accordion .accordion-title{font-size:16px;padding:18px 54px 18px 18px;}
  .accordion .accordion-content{padding:0 18px 20px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#0F534C;
  --c-primary-strong:#0A3C37;
  --c-accent:#B2703A;
  --c-alert:#C0442E;
  --c-bg:#F7F3EA;
  --c-surface:#FFFFFF;
  --c-dark:#14211F;
  --c-text:#221F1A;
  --c-text-weak:#5E5A50;
  --c-text-mute:#9A9488;
  --c-line:#E4DCCB;
  --c-line-strong:rgba(15,83,76,.18);
  --sh-1:0 2px 6px rgba(20,33,31,.06);
  --sh-2:0 12px 32px rgba(20,33,31,.10);
  --r-btn:8px;
  --r-card:12px;
  --r-img:10px;
  --r-badge:4px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --t:180ms ease-out;
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.02em;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t);}
a:hover{color:var(--c-accent);}
button{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{font-family:var(--font-serif);letter-spacing:.01em;color:var(--c-text);}
h1{margin:0;font-size:clamp(30px,4.4vw,46px);line-height:1.25;}
h2{margin:0 0 14px;font-size:clamp(24px,3vw,34px);line-height:1.3;}
h3{margin:0 0 10px;font-size:20px;line-height:1.45;font-weight:600;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(15,83,76,.16);}
.grid-container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;width:100%;}
.button{background:var(--c-primary);border-radius:var(--r-btn);}
.button:hover{background:var(--c-accent);}

/* ============ 按钮系统 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;letter-spacing:.02em;
  border:1.5px solid transparent;cursor:pointer;
  transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-accent);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1);}
.btn-primary:focus-visible{outline:3px solid rgba(15,83,76,.28);outline-offset:2px;}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-ghost:focus-visible{outline:3px solid rgba(15,83,76,.28);outline-offset:2px;}
.btn-light{background:#F7F3EA;color:var(--c-primary-strong);}
.btn-light:hover{background:var(--c-accent);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-outline-light{background:transparent;border-color:rgba(247,243,234,.5);color:#F7F3EA;}
.btn-outline-light:hover{border-color:#F7F3EA;background:rgba(247,243,234,.1);color:#fff;transform:translateY(-2px);}
.btn-nav{height:44px;padding:0 20px;}
.link-quiet{font-size:14px;color:var(--c-text-weak);}
.link-quiet:hover{color:var(--c-primary);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:5px;}
.text-link{font-size:15px;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.text-link:hover{color:var(--c-accent);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:5px;}
.text-link i{font-size:12px;transition:transform var(--t);}
.text-link:hover i{transform:translateX(3px);}

/* ============ 徽章标签 ============ */
.badge{display:inline-block;font-size:13px;line-height:1.6;padding:2px 10px;border-radius:var(--r-badge);letter-spacing:.02em;}
.badge-primary{background:rgba(15,83,76,.12);color:var(--c-primary);}
.badge-copper{background:rgba(178,112,58,.12);color:var(--c-accent);}
.badge-alert{background:rgba(192,68,46,.12);color:var(--c-alert);}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.14em;color:var(--c-accent);
  border-left:3px solid var(--c-accent);padding-left:10px;margin-bottom:14px;line-height:1.6;
}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(247,243,234,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:var(--nav-h);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-seal{
  width:38px;height:38px;flex:0 0 auto;display:grid;place-items:center;
  background:var(--c-primary);color:#F7F3EA;border-radius:6px;
  font-family:var(--font-serif);font-size:15px;letter-spacing:0;line-height:1;
}
.brand-name{font-family:var(--font-serif);font-size:17px;color:var(--c-text);letter-spacing:.01em;white-space:nowrap;}
.main-nav{flex:1 1 auto;display:flex;align-items:center;justify-content:center;gap:28px;}
.nav-link{
  position:relative;font-size:15px;color:var(--c-text-weak);
  padding:6px 0;border-bottom:2px solid transparent;white-space:nowrap;
}
.nav-link:hover{color:var(--c-primary);border-bottom-color:var(--c-line-strong);}
.nav-link.active{color:var(--c-primary);border-bottom-color:var(--c-primary);}
.header-actions{display:flex;align-items:center;gap:18px;flex:0 0 auto;}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:var(--c-surface);cursor:pointer;padding:0;position:relative;
  transition:border-color var(--t),background-color var(--t);
}
.menu-toggle:hover{border-color:var(--c-primary);}
.menu-toggle:focus-visible{outline:3px solid rgba(15,83,76,.24);outline-offset:2px;}
.menu-toggle span{
  display:block;width:18px;height:2px;background:var(--c-primary);margin:0 auto;
  transition:transform var(--t),opacity var(--t);
}
.menu-toggle span + span{margin-top:4px;}

/* ============ 移动抽屉 ============ */
.off-canvas{
  background:var(--c-dark);width:82%;max-width:340px;
  left:0;top:0;bottom:0;z-index:2005;
  border-right:1px solid rgba(178,112,58,.24);
  transform:translateX(-100%);
}
.off-canvas.position-left{left:0;top:0;bottom:0;transform:translateX(-100%);}
.off-canvas.is-open,.off-canvas.is-transition-overlap.is-open{transform:translateX(0);}
.oc-inner{padding:26px 22px 34px;}
.oc-head{display:flex;align-items:center;gap:10px;padding-bottom:20px;border-bottom:1px solid rgba(247,243,234,.14);margin-bottom:10px;}
.oc-head .brand-seal{background:var(--c-accent);}
.oc-head .brand-name{color:#F7F3EA;font-size:16px;}
.oc-link{display:block;padding:14px 0;font-size:16px;color:rgba(247,243,234,.78);border-bottom:1px solid rgba(247,243,234,.08);}
.oc-link:hover{color:var(--c-accent);}
.oc-link.active{color:#F7F3EA;border-bottom-color:rgba(178,112,58,.5);}
.oc-cta{width:100%;margin-top:24px;}

/* ============ 分类横幅 ============ */
.page-hero{position:relative;overflow:hidden;background:var(--c-primary-strong);display:flex;align-items:center;min-height:300px;}
.page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.55;}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(10,60,55,.88) 8%,rgba(10,60,55,.62) 58%,rgba(178,112,58,.42) 100%);
}
.page-hero .grid-container{position:relative;z-index:2;}
.page-hero-inner{padding:54px 0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(247,243,234,.7);letter-spacing:.02em;}
.breadcrumb a{color:rgba(247,243,234,.82);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.breadcrumb .sep{color:rgba(247,243,234,.4);}
.breadcrumb .current{color:rgba(247,243,234,.95);}
.page-hero h1{color:#fff;margin:16px 0 12px;max-width:900px;}
.page-hero-sub{margin:0;font-size:16px;color:rgba(247,243,234,.86);max-width:720px;}

/* ============ 板块 ============ */
.section{padding:88px 0;}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head p{color:var(--c-text-weak);margin:0;}
.lead{font-size:16.5px;color:var(--c-text-weak);max-width:720px;}

/* ============ 编号清单 ============ */
.number-list{display:grid;}
.number-item{
  display:grid;grid-template-columns:118px 1fr;gap:32px;
  padding:34px 0;border-top:1px solid var(--c-line);
}
.number-item:last-child{border-bottom:1px solid var(--c-line);}
.number-index{
  font-family:var(--font-serif);font-size:42px;line-height:1;color:var(--c-accent);opacity:.9;
  letter-spacing:0;
}
.number-body p{color:var(--c-text-weak);margin-bottom:14px;}
.dot-list{display:grid;gap:9px;}
.dot-list li{position:relative;padding-left:20px;font-size:15px;color:var(--c-text-weak);line-height:1.85;}
.dot-list li::before{content:"";position:absolute;left:0;top:.78em;width:9px;height:2px;background:var(--c-accent);}

/* ============ 对比条目 ============ */
.compare-list{display:grid;gap:20px;}
.compare-item{
  display:grid;grid-template-columns:236px 1fr;gap:28px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 28px;box-shadow:var(--sh-1);
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.compare-item:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--c-line-strong);}
.compare-name h3{margin-bottom:10px;}
.compare-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-bottom:16px;padding-bottom:16px;border-bottom:1px dashed var(--c-line);}
.field-key{display:block;font-size:13px;color:var(--c-text-mute);margin-bottom:2px;}
.field-val{display:block;font-size:15px;color:var(--c-text);font-weight:500;}
.compare-note{margin:0;font-size:15px;color:var(--c-text-weak);}

/* ============ 风险自查 ============ */
.risk-list{display:grid;gap:14px;margin-top:26px;}
.risk-list li{position:relative;padding-left:26px;font-size:15.5px;line-height:1.85;color:var(--c-text-weak);}
.risk-list li::before{content:"";position:absolute;left:0;top:.82em;width:13px;height:3px;background:var(--c-accent);border-radius:2px;}
.figure{margin:0;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-2);background:var(--c-line);}
.figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);background:var(--c-line);}
.figure figcaption{font-size:13px;color:var(--c-text-mute);text-align:center;padding:12px 8px 0;}

/* ============ 流程步骤 ============ */
.flow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.flow-step{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:30px 26px 28px;box-shadow:var(--sh-1);
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.flow-step::before{content:"";position:absolute;left:26px;top:0;width:40px;height:3px;background:var(--c-primary);border-radius:0 0 3px 3px;}
.flow-step:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--c-line-strong);}
.flow-num{
  display:inline-block;font-family:var(--font-serif);font-size:14px;letter-spacing:.14em;
  color:var(--c-accent);margin-bottom:14px;
}
.flow-step p{font-size:15px;color:var(--c-text-weak);margin:0;}

/* ============ FAQ ============ */
.accordion{background:transparent;border:0;margin:0;padding:0;}
.accordion-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  margin-bottom:14px;box-shadow:var(--sh-1);overflow:hidden;
  transition:box-shadow var(--t),border-color var(--t);
}
.accordion-item:hover{box-shadow:var(--sh-2);border-color:var(--c-line-strong);}
.accordion-item.is-active{border-left:3px solid var(--c-primary);}
.accordion-title{
  position:relative;border:0;background:transparent;
  font-size:17px;font-weight:600;color:var(--c-text);
  padding:20px 60px 20px 24px;line-height:1.6;
  transition:color var(--t),background-color var(--t);
}
.accordion-title:hover{color:var(--c-primary);background:rgba(15,83,76,.04);}
.accordion-title::before{
  content:"+";position:absolute;right:24px;top:50%;margin:0;
  transform:translateY(-50%);font-size:22px;line-height:1;color:var(--c-accent);
  transition:transform var(--t);
}
.accordion-item.is-active .accordion-title{color:var(--c-primary);}
.accordion-item.is-active .accordion-title::before{content:"−";transform:translateY(-50%) rotate(180deg);}
.accordion-content{
  border:0;background:transparent;
  padding:0 24px 22px;font-size:15.5px;color:var(--c-text-weak);line-height:1.9;
}

/* ============ CTA 横幅 ============ */
.cta-band{position:relative;overflow:hidden;background:var(--c-dark);color:#F7F3EA;padding:76px 0;}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:300px;height:300px;
  border:1px solid rgba(178,112,58,.32);border-radius:50%;pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.5fr 1fr;gap:40px;align-items:center;}
.cta-band h2{color:#F7F3EA;margin-bottom:12px;}
.cta-band p{color:rgba(247,243,234,.72);margin:0;max-width:600px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-dark);color:rgba(247,243,234,.72);padding:66px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px;}
.footer-brand .brand-seal{background:var(--c-accent);}
.footer-brand .brand-name{color:#F7F3EA;font-size:17px;}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(247,243,234,.6);margin-top:18px;max-width:360px;}
.footer-col h4{font-size:15px;font-weight:600;color:#F7F3EA;margin:0 0 18px;font-family:var(--font-sans);letter-spacing:.02em;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14px;color:rgba(247,243,234,.66);}
.footer-col a:hover{color:var(--c-accent);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  border-top:1px solid rgba(247,243,234,.12);padding:22px 0;font-size:13px;color:rgba(247,243,234,.5);
}
.to-top{display:inline-flex;align-items:center;gap:7px;color:rgba(247,243,234,.66);}
.to-top:hover{color:var(--c-accent);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .main-nav{display:none;}
  .header-actions .link-quiet{display:none;}
  .menu-toggle{display:block;}
  .header-inner{gap:16px;justify-content:space-between;}
  .brand{margin-right:auto;}
  .section{padding:64px 0;}
  .page-hero{min-height:280px;}
  .page-hero-inner{padding:46px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .cta-actions{justify-content:flex-start;}
}
@media (max-width:768px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .number-item{grid-template-columns:1fr;gap:12px;padding:28px 0;}
  .number-index{font-size:34px;}
  .compare-item{grid-template-columns:1fr;gap:18px;padding:24px 20px;}
  .compare-fields{grid-template-columns:1fr 1fr;gap:14px;}
  .flow{grid-template-columns:1fr;}
  .cta-band{padding:60px 0;}
  .site-footer{padding-top:52px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:560px){
  :root{--nav-h:60px;}
  .brand-name{font-size:15px;}
  .brand-seal{width:34px;height:34px;font-size:13px;}
  .page-hero h1{margin:12px 0 10px;}
  .page-hero-sub{font-size:15px;}
  .compare-fields{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .accordion-title{font-size:16px;padding:17px 52px 17px 18px;}
  .accordion-content{padding:0 18px 18px;}
  .btn{width:100%;}
  .header-actions .btn-nav{width:auto;padding:0 16px;font-size:14px;}
  .cta-actions{gap:12px;}
}