/* roulang page: index */
:root{
  --ink:#17151C;
  --jade:#2F6E63;
  --jade-dark:#24574E;
  --jade-deep:#1D4841;
  --sand:#FAF8F3;
  --card:#FFFFFF;
  --line:#E7E2D8;
  --muted:#6B6760;
  --dark-body:#F3EFE7;
  --dark-muted:#A8A399;
  --orange:#C6683C;
  --r-card:6px;
  --r-btn:4px;
  --r-badge:2px;
  --sh:0 1px 2px rgba(23,21,28,.04),0 10px 24px rgba(23,21,28,.06);
  --sh-hover:0 1px 2px rgba(23,21,28,.06),0 16px 36px rgba(23,21,28,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:'Noto Serif SC','Songti SC','Source Han Serif SC',Georgia,serif;
  --sans:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--sand);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{font-family:var(--serif);font-weight:700;letter-spacing:-.01em;line-height:1.25;color:var(--ink);margin:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;}
input,textarea,select{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--jade);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.section{padding:96px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap;}
.section-head h2{font-size:32px;}
.section-desc{font-size:13px;color:var(--muted);letter-spacing:.02em;}
.link-more{font-size:14px;color:var(--muted);position:relative;}
.link-more::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--jade);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);}
.link-more:hover{color:var(--jade);}
.link-more:hover::after{transform:scaleX(1);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;letter-spacing:.02em;line-height:1;
  border:1px solid transparent;cursor:pointer;background:transparent;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{background:var(--jade);color:#fff;border-color:var(--jade);}
.btn-primary:hover{background:var(--jade-dark);border-color:var(--jade-dark);color:#fff;}
.btn-primary:active{background:var(--jade-deep);border-color:var(--jade-deep);}
.btn-outline{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-outline:hover{border-color:var(--jade);color:var(--jade);background:rgba(47,110,99,.05);}
.btn-outline:active{background:rgba(47,110,99,.1);}
.btn-light-outline{border-color:rgba(243,239,231,.38);color:var(--dark-body);}
.btn-light-outline:hover{border-color:var(--dark-body);background:rgba(243,239,231,.08);color:#fff;}
.btn-sm{height:38px;font-size:14px;padding:0 16px;}

/* 徽章 */
.badge{
  display:inline-block;font-size:12px;letter-spacing:.08em;line-height:1.6;
  padding:2px 8px;border:1px solid var(--jade);color:var(--jade);
  background:rgba(250,248,243,.94);border-radius:var(--r-badge);
}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(250,248,243,.96);
  border-bottom:1px solid transparent;
  transition:border-color .28s var(--ease),background .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-scrolled{background:#fff;border-bottom-color:var(--line);box-shadow:0 1px 0 rgba(23,21,28,.03);}
.nav-wrap{display:flex;align-items:center;gap:20px;height:72px;transition:height .28s var(--ease);}
.site-header.is-scrolled .nav-wrap{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:28px;height:28px;color:var(--jade);flex:0 0 auto;}
.brand-text{font-family:var(--serif);font-size:18px;font-weight:700;letter-spacing:.02em;color:var(--ink);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:32px;margin-left:8px;}
.nav-link{position:relative;font-size:14px;color:var(--muted);padding:8px 0;white-space:nowrap;}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--jade);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--ink);font-weight:500;}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search input{
  height:38px;width:200px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;padding:0 14px;font-size:14px;color:var(--ink);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input::placeholder{color:#9C978E;}
.nav-search input:focus{outline:none;border-color:var(--jade);box-shadow:0 0 0 3px rgba(47,110,99,.12);}
.nav-login{font-size:14px;color:var(--muted);padding:6px 2px;}
.nav-login:hover{color:var(--ink);}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 移动抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(23,21,28,.42);opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease);z-index:140;}
.drawer-mask.open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:86%;max-width:380px;background:#fff;z-index:150;
  transform:translateX(102%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;padding:20px 24px 24px;overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{width:44px;height:44px;border:0;background:transparent;font-size:26px;line-height:1;color:var(--muted);cursor:pointer;}
.drawer-search{padding:18px 0 8px;}
.drawer-search input{width:100%;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);padding:0 14px;font-size:15px;background:var(--sand);}
.drawer-search input:focus{outline:none;border-color:var(--jade);box-shadow:0 0 0 3px rgba(47,110,99,.12);}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px;}
.drawer-nav a{font-size:18px;line-height:56px;border-bottom:1px solid var(--line);color:var(--ink);}
.drawer-nav a.active{color:var(--jade);font-weight:500;}
.drawer-cta{width:100%;margin-top:24px;height:48px;font-size:16px;}

/* Hero */
.hero{position:relative;overflow:hidden;padding:80px 0 96px;border-bottom:1px solid var(--line);background:var(--sand);}
.hero-stars{position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(circle at 6% 18%, rgba(47,110,99,.42) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 15% 64%, rgba(47,110,99,.30) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 24% 34%, rgba(23,21,28,.24) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 33% 82%, rgba(47,110,99,.26) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 44% 12%, rgba(23,21,28,.20) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 58% 76%, rgba(47,110,99,.34) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 67% 28%, rgba(23,21,28,.20) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 76% 58%, rgba(47,110,99,.30) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 84% 16%, rgba(23,21,28,.18) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 91% 72%, rgba(47,110,99,.28) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 96% 40%, rgba(23,21,28,.16) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 51% 46%, rgba(47,110,99,.22) 0 1.5px, transparent 1.6px);
  animation:twinkle 11s ease-in-out infinite alternate;
}
@keyframes twinkle{from{opacity:.45;}to{opacity:.95;}}
.eyebrow{font-size:12px;letter-spacing:.12em;color:var(--jade);margin-bottom:22px;}
.hero-title{font-size:48px;line-height:1.22;letter-spacing:-.015em;max-width:14em;}
.hero-rule{width:32px;height:3px;background:var(--jade);margin:28px 0 24px;}
.hero-sub{font-size:17px;color:var(--muted);max-width:36em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-note{font-size:13px;color:var(--muted);margin-top:20px;letter-spacing:.02em;}
.hero-visual{margin:0;position:relative;border-radius:var(--r-card);overflow:hidden;aspect-ratio:4/5;background:#EFECE4;}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(23,21,28,.03),rgba(23,21,28,.12));pointer-events:none;}

/* 三步上手 */
.steps-section{padding-top:88px;padding-bottom:88px;}
.steps > .step-col{position:relative;padding:0 28px;}
.step-col:first-child{padding-left:0;}
.step-num{display:block;font-family:var(--serif);font-style:italic;font-size:56px;line-height:1;color:#DCD5C6;letter-spacing:-.02em;margin-bottom:10px;}
.step-title{font-size:20px;margin-bottom:10px;}
.step-text{font-size:15px;color:var(--muted);max-width:26em;}

/* 案例证明 */
.proof-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.proof-figure{margin:0;}
.proof-figure .fig-wrap{border-radius:var(--r-card);overflow:hidden;aspect-ratio:16/10;background:#EFECE4;}
.proof-figure img{width:100%;height:100%;object-fit:cover;}
.proof-figure figcaption{font-size:13px;color:var(--muted);margin-top:14px;line-height:1.7;}
.proof-quotes{display:flex;flex-direction:column;}
.quote-item{padding:0 0 24px;margin-bottom:24px;border-bottom:1px solid var(--line);}
.quote-item:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0;}
.quote-mark{font-family:var(--serif);font-size:40px;line-height:.6;color:#DCD5C6;display:block;margin-bottom:6px;}
.quote-text{font-size:16px;color:var(--ink);line-height:1.8;}
.quote-sign{font-size:13px;color:var(--muted);margin-top:12px;}
.stats-bar{display:flex;flex-wrap:wrap;gap:48px;margin-top:64px;padding-top:36px;border-top:1px solid var(--line);position:relative;}
.stats-bar::before{content:"";position:absolute;top:-1px;left:0;width:48px;height:2px;background:var(--jade);}
.stat{display:flex;flex-direction:column;}
.stat-num{font-family:var(--serif);font-size:36px;font-weight:700;line-height:1.1;color:var(--ink);letter-spacing:-.01em;}
.stat-label{font-size:13px;color:var(--muted);margin-top:6px;letter-spacing:.02em;}

/* 最新信息 */
.news-section{padding-top:96px;}
.news-grid > .cell{margin-bottom:30px;}
.post-card{
  display:flex;flex-direction:column;height:100%;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease);
  box-shadow:var(--sh);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EFECE4;}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.02);}
.post-thumb .badge{position:absolute;top:12px;left:12px;z-index:2;}
.post-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1 1 auto;}
.post-title{font-size:18px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s var(--ease);}
.post-card:hover .post-title{color:var(--jade);}
.post-desc{font-size:14px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:18px;}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);margin-top:auto;padding-top:14px;border-top:1px solid var(--line);}
.post-more{color:var(--jade);white-space:nowrap;}
.empty-state{
  text-align:center;padding:56px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:20px;}

/* FAQ */
.faq-section{background:var(--sand);}
.faq-intro h2{font-size:32px;margin-bottom:16px;}
.faq-intro p{font-size:14px;color:var(--muted);max-width:22em;}
.faq-list{border-bottom:1px solid var(--line);}
.faq-item{border-top:1px solid var(--line);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;
  background:transparent;border:0;padding:0;min-height:60px;text-align:left;cursor:pointer;
  font-family:var(--sans);font-size:17px;color:var(--ink);line-height:1.6;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--jade);}
.faq-icon{flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .24s var(--ease);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--jade);border-radius:1px;}
.faq-icon::before{left:0;top:10px;width:22px;height:2px;}
.faq-icon::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease);}
.faq-item.open .faq-a{max-height:420px;}
.faq-a p{font-size:15px;color:var(--muted);line-height:1.85;padding:0 44px 22px 0;}

/* CTA */
.cta-band{position:relative;overflow:hidden;background:var(--ink);color:var(--dark-body);padding:80px 0;}
.cta-band h2{color:#fff;font-size:32px;margin-bottom:14px;}
.cta-band p{color:var(--dark-muted);font-size:15px;max-width:34em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.cta-deco{
  position:absolute;right:0;bottom:0;width:420px;height:220px;pointer-events:none;opacity:.06;
  background-image:linear-gradient(to right,rgba(243,239,231,.9) 1px,transparent 1px),linear-gradient(to bottom,rgba(243,239,231,.9) 1px,transparent 1px);
  background-size:28px 28px;
}
.cta-stars{position:absolute;right:40px;top:40px;width:260px;height:160px;pointer-events:none;
  background-image:
    radial-gradient(circle at 12% 24%, rgba(243,239,231,.9) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 34% 68%, rgba(243,239,231,.7) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 52% 18%, rgba(243,239,231,.8) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 68% 54%, rgba(243,239,231,.6) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 82% 30%, rgba(243,239,231,.85) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 94% 76%, rgba(243,239,231,.6) 0 1.5px, transparent 1.6px);
  opacity:.5;
}

/* 页脚 */
.site-footer{background:var(--ink);color:var(--dark-muted);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-mark{color:var(--jade);}
.footer-desc{font-size:14px;color:var(--dark-muted);margin-top:16px;line-height:1.8;max-width:18em;}
.footer-col h4{font-family:var(--sans);font-size:13px;letter-spacing:.1em;color:#fff;font-weight:600;margin-bottom:18px;}
.footer-col li{margin-bottom:12px;}
.footer-col a{font-size:14px;color:var(--dark-muted);position:relative;}
.footer-col a:hover{color:var(--dark-body);text-decoration:underline;text-underline-offset:4px;}
.footer-col p{font-size:14px;color:var(--dark-muted);line-height:1.9;}
.footer-bottom{
  border-top:1px solid rgba(243,239,231,.12);padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--dark-muted);
}
.to-top{font-size:13px;color:var(--dark-muted);}
.to-top:hover{color:var(--dark-body);}

/* 网格修饰 */
.grid-margin-x > .cell{margin-bottom:0;}
.news-row > .cell{margin-bottom:30px;}

/* 响应式 */
@media screen and (max-width:1024px){
  .main-nav,.nav-search,.nav-login{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:72px 0;}
  .hero{padding:64px 0 72px;}
  .hero-title{font-size:38px;max-width:100%;}
  .hero-visual{max-width:420px;margin:44px auto 0;}
  .steps > .step-col{padding:0 20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .stats-bar{gap:36px;}
}
@media screen and (max-width:640px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:24px;}
  .hero{padding:48px 0 56px;}
  .hero-title{font-size:30px;line-height:1.3;}
  .hero-sub{font-size:15px;}
  .hero-rule{margin:22px 0 18px;}
  .hero-actions .btn{flex:1 1 auto;}
  .btn{height:46px;}
  .steps > .step-col{border-left:1px solid var(--line);margin-left:8px;padding:0 0 32px 24px;position:relative;}
  .step-num{font-size:40px;margin-bottom:8px;}
  .steps > .step-col:last-child{padding-bottom:0;}
  .quote-mark{font-size:32px;}
  .stats-bar{gap:24px;margin-top:40px;}
  .stat-num{font-size:30px;}
  .faq-intro{margin-bottom:24px;}
  .faq-intro h2{font-size:24px;}
  .faq-intro p{max-width:100%;}
  .faq-q{font-size:16px;min-height:56px;}
  .faq-a p{padding-right:0;}
  .cta-band{padding:56px 0;}
  .cta-band h2{font-size:24px;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .cta-stars{display:none;}
  .cta-deco{width:240px;height:140px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --ink:#17151C;
  --ink-soft:#2A272F;
  --jade:#2F6E63;
  --jade-dark:#24574E;
  --jade-deep:#1D4841;
  --sand:#FAF8F3;
  --white:#FFFFFF;
  --line:#E7E2D8;
  --muted:#6B6760;
  --ink-body:#F3EFE7;
  --ink-muted:#A8A399;
  --warn:#C6683C;
  --r-card:6px;
  --r-btn:4px;
  --r-img:6px;
  --r-badge:2px;
  --r-input:4px;
  --sh-1:0 1px 2px rgba(23,21,28,.04), 0 10px 24px rgba(23,21,28,.06);
  --sh-2:0 1px 2px rgba(23,21,28,.06), 0 16px 36px rgba(23,21,28,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Songti SC","SimSun",Georgia,serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--sand);
  color:var(--ink-soft);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:var(--serif);
  color:var(--ink);
  font-weight:600;
  letter-spacing:-.01em;
  line-height:1.25;
  margin:0;
}
p{margin:0 0 1.1em;line-height:1.85;}
p:last-child{margin-bottom:0;}
a{color:inherit;text-decoration:none;transition:color .24s var(--ease);}
img{display:block;max-width:100%;height:auto;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
::selection{background:rgba(47,110,99,.16);color:var(--ink);}
:focus-visible{outline:2px solid var(--jade);outline-offset:3px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--sand);
  border-bottom:1px solid transparent;
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 6px 18px rgba(23,21,28,.05);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
  transition:height .28s var(--ease);
}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--ink);
}
.brand-mark{width:28px;height:28px;color:var(--jade);flex:0 0 auto;}
.brand-text{
  font-family:var(--serif);
  font-size:18px;
  font-weight:700;
  letter-spacing:.01em;
  white-space:nowrap;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:32px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:14px;
  color:var(--muted);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:var(--jade);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .28s var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after,
.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--ink);font-weight:600;}
.header-actions{
  display:flex;
  align-items:center;
  gap:14px;
  margin-left:auto;
}
.nav-search{
  position:relative;
  width:200px;
  flex:0 0 auto;
}
.nav-search input{
  width:100%;
  height:38px;
  padding:0 14px;
  font-size:14px;
  color:var(--ink);
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.nav-search input::placeholder{color:#9A968E;}
.nav-search input:focus{
  outline:none;
  border-color:var(--jade);
  box-shadow:0 0 0 3px rgba(47,110,99,.12);
}
.link-login{font-size:14px;color:var(--muted);white-space:nowrap;}
.link-login:hover{color:var(--jade);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  font-size:14px;
  font-weight:600;
  letter-spacing:.02em;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
  white-space:nowrap;
}
.btn-sm{padding:9px 18px;font-size:13px;}
.btn-solid{background:var(--jade);color:#fff;border-color:var(--jade);}
.btn-solid:hover{background:var(--jade-dark);border-color:var(--jade-dark);color:#fff;}
.btn-solid:active{background:var(--jade-deep);border-color:var(--jade-deep);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--jade);color:var(--jade);}
.btn-ghost:active{background:rgba(47,110,99,.06);}
.btn-light{background:transparent;color:var(--ink-body);border-color:rgba(243,239,231,.34);}
.btn-light:hover{border-color:var(--ink-body);color:#fff;background:rgba(243,239,231,.06);}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:var(--white);
}
.nav-toggle span{
  display:block;
  position:relative;
  width:18px;
  height:2px;
  background:var(--ink);
  transition:background .2s var(--ease);
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:var(--ink);
  transition:transform .24s var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- mobile drawer ---------- */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(23,21,28,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity .28s var(--ease),visibility .28s var(--ease);
  z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:320px;
  max-width:86vw;
  background:var(--sand);
  z-index:95;
  display:flex;
  flex-direction:column;
  padding:20px 20px 24px;
  transform:translateX(102%);
  transition:transform .3s var(--ease);
  box-shadow:-16px 0 40px rgba(23,21,28,.14);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-title{font-family:var(--serif);font-size:16px;font-weight:700;color:var(--ink);}
.drawer-close{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-btn);
  font-size:20px;line-height:1;color:var(--ink);background:var(--white);
}
.drawer-search{width:100%;margin-bottom:12px;}
.drawer-search input{
  width:100%;height:44px;padding:0 14px;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-input);background:var(--white);color:var(--ink);
}
.drawer-search input:focus{outline:none;border-color:var(--jade);box-shadow:0 0 0 3px rgba(47,110,99,.12);}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px;flex:1 1 auto;}
.drawer-nav a{
  display:flex;
  align-items:center;
  min-height:56px;
  font-size:18px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--jade);}
.drawer-cta{margin-top:20px;}
.drawer-cta .btn{width:100%;min-height:48px;}

/* ---------- breadcrumb ---------- */
.crumb-bar{
  background:var(--sand);
  border-bottom:1px solid var(--line);
}
.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  padding:16px 0;
  font-size:13px;
  color:var(--muted);
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--jade);text-decoration:underline;text-underline-offset:3px;}
.crumb .sep{color:#C6C0B4;}
.crumb .current{color:var(--ink);font-weight:600;}

/* ---------- article ---------- */
.article-shell{padding:48px 0 96px;}
.article-head{max-width:760px;margin:0 auto 0;}
.article-badge{
  display:inline-block;
  padding:3px 10px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--jade);
  border:1px solid var(--jade);
  border-radius:var(--r-badge);
  background:transparent;
  margin-bottom:16px;
}
.article-title{
  font-size:38px;
  line-height:1.32;
  margin-bottom:18px;
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  font-size:13px;
  color:var(--muted);
}
.article-meta .num{font-family:Georgia,var(--serif);font-style:italic;font-size:14px;color:var(--jade);}
.article-meta .meta-sep{color:#C6C0B4;}
.head-rule{
  height:1px;
  background:var(--line);
  margin:26px 0 0;
}
.article-body{
  max-width:720px;
  margin:0 auto;
  padding-top:36px;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-soft);
}
.article-body p{margin:0 0 1.6em;}
.article-body h2{
  position:relative;
  font-size:26px;
  margin:40px 0 16px;
  padding-left:14px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.18em;
  bottom:.18em;
  width:3px;
  background:var(--jade);
}
.article-body h3{font-size:20px;margin:28px 0 12px;}
.article-body h4{font-size:17px;margin:22px 0 10px;}
.article-body a{color:var(--jade);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--jade-dark);}
.article-body ul,.article-body ol{margin:0 0 1.6em;padding-left:1.25em;}
.article-body ul li{list-style:disc;margin-bottom:.5em;line-height:1.85;}
.article-body ol li{list-style:decimal;margin-bottom:.5em;line-height:1.85;}
.article-body blockquote{
  margin:24px 0;
  padding:20px 22px;
  background:var(--sand);
  border-left:2px solid var(--jade);
  border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  max-width:100%;
  height:auto;
  border-radius:var(--r-img);
  margin:26px auto;
}
.article-body figure{margin:26px 0;}
.article-body figcaption{
  font-size:13px;
  color:var(--muted);
  text-align:center;
  margin-top:10px;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  font-size:15px;
  margin:24px 0;
}
.article-body th{
  text-align:left;
  font-weight:600;
  color:var(--ink);
  padding:10px 12px;
  border-bottom:2px solid var(--ink);
}
.article-body td{
  padding:10px 12px;
  border-bottom:1px solid var(--line);
  color:var(--ink-soft);
}
.article-body hr{
  border:0;
  height:1px;
  background:var(--line);
  margin:32px 0;
}
.empty-state{
  max-width:720px;
  margin:0 auto;
  padding:56px 24px;
  text-align:center;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
}
.empty-state h2{font-size:22px;margin-bottom:12px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px;}

/* ---------- article footer ---------- */
.article-foot{
  max-width:960px;
  margin:56px auto 0;
  padding-top:32px;
  border-top:1px solid var(--line);
}
.foot-grid{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.rec-block{flex:1 1 560px;min-width:280px;}
.rec-title{
  font-size:16px;
  font-family:var(--serif);
  color:var(--ink);
  margin-bottom:16px;
}
.rec-grid{margin:0 -12px;}
.rec-grid .cell{padding:0 12px;margin-bottom:16px;}
.rec-card{
  display:flex;
  align-items:center;
  gap:12px;
  padding:10px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
  height:100%;
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--sh-1);}
.rec-thumb{
  width:88px;
  height:64px;
  flex:0 0 auto;
  border-radius:4px;
  overflow:hidden;
  background:var(--sand);
}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.rec-card:hover .rec-thumb img{transform:scale(1.04);}
.rec-text{
  font-size:14px;
  line-height:1.5;
  color:var(--ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rec-card:hover .rec-text{color:var(--jade);}
.back-line{flex:0 0 auto;padding-top:4px;}

/* ---------- cta ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--ink);
  padding:80px 0;
  color:var(--ink-body);
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-40px;
  bottom:-60px;
  width:340px;
  height:260px;
  background-image:radial-gradient(circle at 20% 30%, rgba(243,239,231,.5) 0 1px, transparent 1.5px),
                   radial-gradient(circle at 65% 55%, rgba(243,239,231,.35) 0 1px, transparent 1.5px),
                   radial-gradient(circle at 42% 80%, rgba(243,239,231,.28) 0 1px, transparent 1.5px),
                   radial-gradient(circle at 85% 22%, rgba(243,239,231,.4) 0 1px, transparent 1.5px);
  background-size:120px 120px,90px 90px,150px 150px,70px 70px;
  opacity:.5;
  pointer-events:none;
}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:14px;}
.cta-band p{color:var(--ink-muted);font-size:15px;max-width:520px;margin-bottom:28px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-inner{position:relative;z-index:2;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink);
  color:var(--ink-muted);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-bottom:40px;
}
.site-footer .brand{color:#fff;}
.site-footer .brand-mark{color:var(--jade);}
.site-footer .brand-text{color:#fff;}
.footer-desc{
  font-size:14px;
  color:var(--ink-muted);
  margin-top:14px;
  line-height:1.8;
  max-width:260px;
}
.footer-col h4{
  font-family:var(--sans);
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--ink-body);
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col a,
.footer-col p{
  font-size:14px;
  color:var(--ink-muted);
  line-height:1.8;
  margin:0 0 8px;
}
.footer-col a:hover{color:var(--ink-body);text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  padding-top:22px;
  border-top:1px solid rgba(243,239,231,.12);
  font-size:13px;
  color:var(--ink-muted);
}
.to-top{color:var(--ink-muted);}
.to-top:hover{color:var(--ink-body);}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .main-nav,.nav-search,.link-login{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-ghost{display:none;}
  .article-title{font-size:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .article-shell{padding:36px 0 64px;}
  .article-title{font-size:28px;line-height:1.36;}
  .article-body{font-size:15px;padding-top:28px;}
  .article-body h2{font-size:23px;margin-top:32px;}
  .article-body h3{font-size:19px;}
  .cta-band{padding:56px 0;}
  .cta-band h2{font-size:24px;}
  .site-footer{padding:52px 0 24px;}
  .foot-grid{gap:24px;}
  .back-line{padding-top:0;}
}
@media (max-width:520px){
  .brand-text{font-size:16px;}
  .header-actions .btn-solid{padding:8px 14px;font-size:13px;}
  .article-title{font-size:24px;}
  .article-meta{font-size:12px;gap:8px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --ink:#17151C;
  --ink-2:#2A2730;
  --jade:#2F6E63;
  --jade-dark:#24574E;
  --jade-deep:#1D4841;
  --jade-soft:#6FB3A4;
  --paper:#FAF8F3;
  --paper-alt:#F4F1EA;
  --card:#FFFFFF;
  --line:#E7E2D8;
  --muted:#6B6760;
  --ink-soft:#F3EFE7;
  --ink-muted:#A8A399;
  --warn:#C6683C;
  --serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,"Times New Roman",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --radius:6px;
  --radius-sm:4px;
  --radius-badge:2px;
  --shadow-1:0 1px 2px rgba(23,21,28,.04),0 10px 24px rgba(23,21,28,.06);
  --shadow-2:0 1px 2px rgba(23,21,28,.06),0 16px 36px rgba(23,21,28,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --space-lg:96px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.drawer-open{overflow:hidden;}
img{display:block;max-width:100%;height:auto;border:0;}
a{color:inherit;text-decoration:none;background-color:transparent;transition:color .25s var(--ease);}
a:hover{color:var(--jade);text-decoration:none;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;cursor:pointer;background:none;border:0;color:inherit;}
input{font:inherit;}
h1,h2,h3,h4,h5,h6{
  font-family:var(--serif);
  font-weight:600;
  color:var(--ink);
  letter-spacing:-.01em;
  line-height:1.25;
  margin:0;
}
h1{font-size:clamp(30px,4.2vw,44px);font-weight:700;}
h2{font-size:clamp(24px,3vw,32px);}
h3{font-size:clamp(18px,1.8vw,20px);}
::selection{background:rgba(47,110,99,.16);color:var(--ink);}
:focus-visible{outline:2px solid var(--jade);outline-offset:3px;}

/* ---------- 容器与栅格 ---------- */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.grid-x{display:flex;flex-flow:row wrap;}
.gx-24{margin-left:-12px;margin-right:-12px;}
.gx-24 > .cell{padding-left:12px;padding-right:12px;}
.gx-16{margin-left:-8px;margin-right:-8px;}
.gx-16 > .cell{padding-left:8px;padding-right:8px;margin-bottom:16px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(250,248,243,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 1px 0 rgba(23,21,28,.04),0 8px 20px rgba(23,21,28,.05);}
.header-inner{
  display:flex;
  align-items:center;
  gap:26px;
  height:72px;
  transition:height .3s var(--ease);
}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--serif);
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  white-space:nowrap;
  flex:0 0 auto;
}
.brand:hover{color:var(--ink);}
.brand-mark{width:28px;height:28px;flex:0 0 28px;color:var(--jade);}
.brand-text{letter-spacing:-.01em;}
.main-nav{display:flex;align-items:center;gap:32px;}
.nav-link{
  position:relative;
  font-size:14px;
  color:#4A4640;
  padding:6px 0;
  transition:color .25s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-4px;
  height:2px;
  background:var(--jade);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .28s var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.nav-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:14px;
}
.nav-search{margin:0;}
.nav-search input{
  width:200px;
  height:38px;
  padding:0 14px;
  font-size:13px;
  color:var(--ink);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
  margin:0;
}
.nav-search input::placeholder{color:#9A958C;}
.nav-search input:focus{
  outline:none;
  border-color:var(--jade);
  box-shadow:0 0 0 3px rgba(47,110,99,.12);
}
.link-login{font-size:14px;color:#4A4640;}
.link-login:hover{color:var(--jade);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-size:14px;
  font-weight:500;
  line-height:1;
  letter-spacing:.01em;
  cursor:pointer;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
  white-space:nowrap;
}
.btn:hover{text-decoration:none;}
.btn-sm{height:36px;padding:0 16px;font-size:13px;}
.btn-solid{background:var(--jade);color:#fff;border-color:var(--jade);}
.btn-solid:hover{background:var(--jade-dark);border-color:var(--jade-dark);color:#fff;}
.btn-solid:active{background:var(--jade-deep);border-color:var(--jade-deep);}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-outline:hover{border-color:var(--jade);color:var(--jade);background:transparent;}
.btn-outline:active{background:rgba(47,110,99,.06);}
.btn-light-outline{background:transparent;color:var(--ink-soft);border-color:rgba(243,239,231,.34);}
.btn-light-outline:hover{border-color:var(--ink-soft);color:#fff;background:rgba(243,239,231,.08);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:#fff;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--ink);transition:transform .28s var(--ease),opacity .28s var(--ease);}

/* ---------- 移动端抽屉 ---------- */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(23,21,28,.42);
  opacity:0;
  pointer-events:none;
  transition:opacity .3s var(--ease);
  z-index:70;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.nav-drawer{
  position:fixed;
  top:0;right:0;
  width:min(86vw,380px);
  height:100%;
  background:var(--paper);
  border-left:1px solid var(--line);
  box-shadow:var(--shadow-2);
  transform:translateX(102%);
  transition:transform .32s var(--ease);
  z-index:80;
  display:flex;
  flex-direction:column;
  padding:20px 22px 28px;
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:18px;
  border-bottom:1px solid var(--line);
  font-family:var(--serif);
  font-weight:700;
  font-size:16px;
}
.drawer-close{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:24px;line-height:1;
  color:var(--muted);
  border-radius:var(--radius-sm);
}
.drawer-close:hover{color:var(--ink);background:rgba(23,21,28,.05);}
.drawer-search{margin:18px 0 8px;}
.drawer-search input{
  width:100%;height:44px;padding:0 14px;margin:0;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;font-size:14px;color:var(--ink);
}
.drawer-search input:focus{outline:none;border-color:var(--jade);box-shadow:0 0 0 3px rgba(47,110,99,.12);}
.drawer-nav{display:flex;flex-direction:column;margin:8px 0 auto;}
.drawer-nav a{
  font-size:18px;
  line-height:56px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--jade);font-weight:600;}
.drawer-cta{margin-top:22px;width:100%;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--space-lg) 0;}
.section-alt{
  background:var(--paper-alt);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.sec-title{margin:0 0 14px;}
.sec-lead{
  font-size:15px;
  color:var(--muted);
  margin:0;
  max-width:520px;
}
.more-link{font-size:14px;color:var(--jade);white-space:nowrap;}
.more-link:hover{color:var(--jade-dark);text-decoration:underline;text-underline-offset:5px;}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:22px;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--jade);}
.crumb .sep{color:#BFBAAF;}
.crumb .current{color:var(--ink);}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;
  padding:52px 0 76px;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cat-hero::after{
  content:"";
  position:absolute;
  right:-40px;top:-60px;
  width:420px;height:420px;
  background-image:radial-gradient(circle,rgba(47,110,99,.18) 1px,transparent 1.6px);
  background-size:38px 38px;
  opacity:.5;
  pointer-events:none;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--jade);
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:20px;height:1px;background:var(--jade);}
.cat-hero h1{max-width:760px;position:relative;z-index:1;}
.rule{
  display:block;
  width:32px;height:3px;
  background:var(--jade);
  margin:22px 0 20px;
}
.cat-sub{
  font-size:16px;
  color:var(--muted);
  max-width:560px;
  margin:0 0 28px;
}
.cat-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cat-figure{
  margin:0;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  background:#fff;
  position:relative;
  z-index:1;
}
.cat-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}

/* ---------- 要点列表 ---------- */
.point-list{
  border-top:1px solid var(--line);
}
.point-list li{
  display:flex;
  gap:24px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
  transition:background .25s var(--ease);
}
.point-list li:hover{background:rgba(47,110,99,.03);}
.point-tag{
  flex:0 0 84px;
  font-size:13px;
  letter-spacing:.04em;
  color:var(--jade);
  padding-top:3px;
}
.point-list p{
  margin:0;
  font-size:15px;
  color:var(--muted);
  line-height:1.8;
}

/* ---------- 流程步骤 ---------- */
.step-list{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  margin-top:36px;
}
.step-list li{
  background:var(--card);
  padding:32px 30px 34px;
  transition:background .25s var(--ease);
}
.step-list li:hover{background:#FDFCF9;}
.step-num{
  display:block;
  font-family:var(--serif);
  font-style:italic;
  font-size:40px;
  line-height:1;
  color:#D6CFC1;
  margin-bottom:16px;
}
.step-list h3{margin:0 0 10px;}
.step-list p{
  margin:0;
  font-size:15px;
  color:var(--muted);
  line-height:1.8;
}

/* ---------- 跳转卡 ---------- */
.link-cards{margin-top:8px;}
.link-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  height:100%;
  padding:24px 24px 24px 26px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.link-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
  color:inherit;
}
.link-card h3{margin:0 0 6px;font-size:18px;transition:color .25s var(--ease);}
.link-card:hover h3{color:var(--jade);}
.link-card p{margin:0;font-size:14px;color:var(--muted);line-height:1.75;}
.link-card .arrow{
  flex:0 0 auto;
  font-size:18px;
  color:var(--jade);
  transition:transform .28s var(--ease);
}
.link-card:hover .arrow{transform:translateX(4px);}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 0;
  font-family:var(--serif);
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  transition:color .25s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--jade);}
.faq-item summary::after{
  content:"+";
  font-family:var(--sans);
  font-size:22px;
  font-weight:400;
  line-height:1;
  color:var(--jade);
  transition:transform .28s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-answer{padding:0 0 22px;}
.faq-answer p{
  margin:0;
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
  max-width:660px;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--ink);
  color:var(--ink-soft);
  padding:80px 0;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(circle,rgba(243,239,231,.34) 1px,transparent 1.6px),radial-gradient(circle,rgba(243,239,231,.22) 1px,transparent 1.6px);
  background-size:190px 150px,250px 210px;
  background-position:24px 32px,96px 74px;
  opacity:.55;
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:1;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{color:#fff;margin:0 0 12px;}
.cta-band p{
  margin:0;
  color:var(--ink-muted);
  font-size:15px;
  max-width:520px;
}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:var(--ink-soft);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:48px;
}
.site-footer .brand{color:var(--ink-soft);}
.site-footer .brand:hover{color:#fff;}
.site-footer .brand-mark{color:var(--jade-soft);}
.footer-desc{
  margin:16px 0 0;
  font-size:14px;
  line-height:1.8;
  color:var(--ink-muted);
  max-width:260px;
}
.footer-col h4{
  font-family:var(--sans);
  font-size:13px;
  font-weight:500;
  letter-spacing:.08em;
  color:var(--ink-muted);
  margin:0 0 16px;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--ink-muted);}
.footer-col a:hover{color:var(--ink-soft);text-decoration:underline;text-underline-offset:4px;}
.footer-col p{
  font-size:14px;
  line-height:1.75;
  color:var(--ink-muted);
  margin:0 0 10px;
}
.footer-bottom{
  border-top:1px solid rgba(243,239,231,.12);
  padding:20px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:var(--ink-muted);
}
.to-top{color:var(--ink-muted);}
.to-top:hover{color:var(--ink-soft);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  :root{--space-lg:72px;}
  .main-nav{display:none;}
  .nav-search,.link-login,.nav-actions .btn-outline{display:none;}
  .nav-toggle{display:inline-flex;}
  .cat-hero::after{display:none;}
  .step-list{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:768px){
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .point-list li{flex-direction:column;gap:8px;}
  .point-tag{flex:none;}
  .cat-figure{margin-top:28px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media screen and (max-width:640px){
  :root{--space-lg:56px;}
  .container{padding:0 20px;}
  .header-inner{height:64px;gap:14px;}
  .brand{font-size:15px;}
  .brand-mark{width:24px;height:24px;flex:0 0 24px;}
  .nav-actions .btn-sm{padding:0 12px;font-size:12px;}
  .cat-hero{padding:36px 0 56px;}
  .cat-sub{font-size:15px;}
  .cat-actions .btn{width:100%;}
  .step-list li{padding:26px 20px;}
  .cta-band{padding:56px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:56px;}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --ink:#17151C;
  --star:#2F6E63;
  --star-dark:#24574E;
  --star-deep:#1D4841;
  --sand:#FAF8F3;
  --card:#FFFFFF;
  --line:#E7E2D8;
  --muted:#6B6760;
  --dark-text:#F3EFE7;
  --dark-muted:#A8A399;
  --warn:#C6683C;
  --r-card:6px;
  --r-btn:4px;
  --r-badge:2px;
  --shadow-1:0 1px 2px rgba(23,21,28,.04),0 10px 24px rgba(23,21,28,.06);
  --shadow-2:0 1px 2px rgba(23,21,28,.06),0 16px 36px rgba(23,21,28,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--sand);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{
  font-family:var(--serif);
  font-weight:600;
  letter-spacing:-.01em;
  line-height:1.25;
  margin:0;
  color:var(--ink);
}
p{margin:0;}
ul,ol{margin:0;}
a{color:var(--star);text-decoration:none;transition:color .24s var(--ease);}
a:hover{color:var(--star-dark);}
img{max-width:100%;display:block;height:auto;}
button{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--star);outline-offset:3px;}
::selection{background:rgba(47,110,99,.16);}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,248,243,.96);
  border-bottom:1px solid transparent;
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);background:var(--sand);}
.header-inner{
  display:flex;align-items:center;gap:32px;
  height:72px;
  transition:height .24s var(--ease);
}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto;}
.brand:hover{color:var(--ink);}
.brand-mark{width:28px;height:28px;color:var(--star);flex:0 0 28px;}
.brand-text{font-family:var(--serif);font-size:17px;font-weight:600;letter-spacing:.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:14px;
  color:var(--muted);
  line-height:1.2;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;
  background:var(--star);
  transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--ink);}
.nav-link.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:16px;margin-left:auto;}
.search-box{position:relative;}
.search-box svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--muted);width:14px;height:14px;}
.search-box input{
  width:200px;height:38px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--ink);
  font-family:var(--sans);
  font-size:13px;
  padding:0 12px 0 33px;
  margin:0;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.search-box input::placeholder{color:#9C978E;}
.search-box input:focus{outline:none;border-color:var(--star);box-shadow:0 0 0 3px rgba(47,110,99,.12);}
.link-login{font-size:14px;color:var(--muted);white-space:nowrap;}
.link-login:hover{color:var(--ink);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;margin-left:auto;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-btn);
  color:var(--ink);cursor:pointer;
  transition:border-color .24s var(--ease),color .24s var(--ease);
}
.nav-toggle:hover{border-color:var(--star);color:var(--star);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;
  border:1px solid transparent;border-radius:var(--r-btn);
  font-family:var(--sans);font-size:14px;font-weight:500;letter-spacing:.02em;
  cursor:pointer;white-space:nowrap;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn-solid{background:var(--star);color:#fff;}
.btn-solid:hover{background:var(--star-dark);color:#fff;}
.btn-solid:active{background:var(--star-deep);color:#fff;transform:translateY(1px);}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-outline:hover{background:var(--ink);color:var(--sand);}
.btn-outline:active{transform:translateY(1px);}
.btn-outline-light{background:transparent;border-color:rgba(243,239,231,.42);color:var(--dark-text);}
.btn-outline-light:hover{background:rgba(243,239,231,.10);color:#fff;border-color:rgba(243,239,231,.7);}
.btn-sm{height:38px;padding:0 18px;font-size:13px;}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;z-index:70;
  background:rgba(23,21,28,.42);
  opacity:0;pointer-events:none;
  transition:opacity .28s var(--ease);
}
.drawer-mask.open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;
  width:min(88vw,360px);
  background:var(--sand);
  border-left:1px solid var(--line);
  padding:20px 20px 28px;
  display:flex;flex-direction:column;
  transform:translateX(100%);
  transition:transform .28s var(--ease);
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-title{font-family:var(--serif);font-size:16px;font-weight:600;}
.drawer-close{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-btn);
  color:var(--muted);cursor:pointer;font-size:18px;line-height:1;
  transition:color .24s var(--ease),border-color .24s var(--ease);
}
.drawer-close:hover{color:var(--ink);border-color:var(--star);}
.drawer .search-box{margin-bottom:18px;}
.drawer .search-box input{width:100%;height:44px;font-size:14px;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  font-size:18px;color:var(--ink);
  padding:14px 0;border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
}
.drawer-nav a:hover{color:var(--star);}
.drawer-nav a.active{color:var(--star);}
.drawer-foot{margin-top:auto;padding-top:24px;}
.drawer-foot .btn{width:100%;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:76px 0 72px;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(1px 1px at 18% 26%,rgba(47,110,99,.28),transparent 100%),
    radial-gradient(1px 1px at 74% 14%,rgba(47,110,99,.22),transparent 100%),
    radial-gradient(1px 1px at 46% 82%,rgba(23,21,28,.16),transparent 100%),
    radial-gradient(1px 1px at 88% 62%,rgba(47,110,99,.20),transparent 100%),
    var(--sand);
}
.hero-grid{align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.08em;color:var(--star);
  margin-bottom:20px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--star);display:inline-block;}
.page-title{
  font-size:clamp(30px,4.2vw,48px);
  line-height:1.2;
  max-width:16em;
}
.title-rule{width:32px;height:3px;background:var(--star);margin:24px 0 22px;border:0;}
.page-sub{
  font-size:16px;line-height:1.85;color:var(--muted);
  max-width:34em;
}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-trust{
  margin-top:18px;font-size:13px;color:var(--muted);letter-spacing:.01em;
}
.hero-media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  aspect-ratio:4/5;
  background:var(--line);
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(23,21,28,0) 55%,rgba(23,21,28,.22) 100%);
}

/* ---------- 板块 ---------- */
.section{padding:96px 0;}
.section--tight{padding:80px 0;}
.section--line{border-top:1px solid var(--line);}
.section--white{background:var(--card);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:28px;flex-wrap:wrap;margin-bottom:44px;
}
.section-title{font-size:clamp(24px,2.8vw,32px);}
.section-note{font-size:13px;color:var(--muted);max-width:36em;line-height:1.85;}
.section-kicker{
  font-size:12px;letter-spacing:.08em;color:var(--star);
  margin-bottom:14px;display:block;
}

/* 板块 A：左标题 + 右要点列表 */
.split{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:72px;
  align-items:start;
}
.split-title{font-size:clamp(24px,2.8vw,32px);max-width:11em;}
.split-text{margin-top:20px;font-size:15px;line-height:1.9;color:var(--muted);max-width:24em;}
.split-link{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:24px;font-size:14px;color:var(--star);
}
.split-link span{transition:transform .24s var(--ease);}
.split-link:hover span{transform:translateX(4px);}
.point-list{list-style:none;margin:0;padding:0;}
.point-list li{
  display:grid;grid-template-columns:auto 1fr;gap:18px;
  padding:22px 0;border-top:1px solid var(--line);
}
.point-list li:last-child{border-bottom:1px solid var(--line);}
.point-index{
  font-family:var(--serif);font-style:italic;
  font-size:14px;color:var(--star);line-height:1.6;min-width:22px;
}
.point-title{font-size:16px;font-weight:600;line-height:1.6;}
.point-desc{margin-top:6px;font-size:14px;line-height:1.85;color:var(--muted);}

/* 板块 B：编号步骤 */
.step-grid{margin-top:0;}
.step-item{
  position:relative;
  padding:8px 32px 8px 0;
}
.step-item:not(:last-child){border-right:1px solid var(--line);}
.step-num{
  font-family:var(--serif);font-style:italic;
  font-size:56px;line-height:1;color:var(--line);
  display:block;margin-bottom:22px;
}
.step-title{font-size:18px;margin-bottom:12px;}
.step-desc{font-size:15px;line-height:1.9;color:var(--muted);max-width:22em;}
.step-figure{
  margin-top:40px;
  border-radius:var(--r-card);
  overflow:hidden;
  aspect-ratio:16/7;
  background:var(--line);
}
.step-figure img{width:100%;height:100%;object-fit:cover;}

/* 板块 C：对比表 */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.mini-table{width:100%;min-width:640px;border-collapse:collapse;font-size:14px;}
.mini-table th{
  text-align:left;
  font-family:var(--sans);
  font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--muted);
  padding:0 24px 14px 0;
  border-bottom:2px solid var(--ink);
}
.mini-table td{
  padding:20px 24px 20px 0;
  border-bottom:1px solid var(--line);
  color:var(--ink);
  vertical-align:top;
  line-height:1.8;
}
.mini-table td:first-child{font-weight:600;white-space:nowrap;}
.mini-table td:last-child{color:var(--muted);}
.mini-table tbody tr:hover td{background:rgba(47,110,99,.035);}

/* 板块 D：跳转卡 */
.jump-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.jump-card{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 26px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  color:var(--ink);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.jump-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);color:var(--ink);}
.jump-card:focus-visible{outline:2px solid var(--star);outline-offset:3px;}
.jump-card h3{font-size:17px;margin-bottom:6px;}
.jump-card p{font-size:13px;color:var(--muted);line-height:1.8;}
.jump-arrow{
  flex:0 0 auto;width:32px;height:32px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:50%;
  color:var(--star);font-size:14px;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.jump-card:hover .jump-arrow{background:var(--star);color:#fff;border-color:var(--star);}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:880px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;
  font-size:17px;color:var(--ink);
  transition:color .24s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--star);}
.faq-sign{position:relative;flex:0 0 14px;width:14px;height:14px;}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:currentColor;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.faq-sign::before{left:0;top:6px;width:14px;height:2px;}
.faq-sign::after{left:6px;top:0;width:2px;height:14px;}
.faq-item[open] .faq-sign::after{transform:rotate(90deg);opacity:0;}
.faq-answer{
  padding:0 0 24px;
  font-size:15px;line-height:1.9;color:var(--muted);
  max-width:74ch;
}
.faq-answer a{color:var(--star);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--ink);
  color:var(--dark-text);
  padding:80px 0;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1px 1px at 12% 22%,rgba(243,239,231,.55),transparent 100%),
    radial-gradient(1px 1px at 26% 68%,rgba(243,239,231,.35),transparent 100%),
    radial-gradient(1px 1px at 41% 16%,rgba(243,239,231,.45),transparent 100%),
    radial-gradient(1px 1px at 56% 74%,rgba(243,239,231,.30),transparent 100%),
    radial-gradient(1px 1px at 68% 30%,rgba(243,239,231,.50),transparent 100%),
    radial-gradient(1px 1px at 79% 82%,rgba(243,239,231,.35),transparent 100%),
    radial-gradient(1px 1px at 90% 46%,rgba(243,239,231,.45),transparent 100%),
    radial-gradient(1px 1px at 34% 44%,rgba(243,239,231,.25),transparent 100%);
  opacity:.75;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(243,239,231,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(243,239,231,.05) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
}
.cta-inner{position:relative;z-index:2;}
.cta-title{color:var(--dark-text);font-size:clamp(24px,2.8vw,32px);max-width:18em;}
.cta-desc{margin-top:16px;font-size:15px;line-height:1.9;color:var(--dark-muted);max-width:40em;}
.cta-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--dark-text);padding:72px 0 0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:48px;
}
.site-footer .brand{color:var(--dark-text);}
.site-footer .brand:hover{color:#fff;}
.site-footer .brand-mark{color:var(--star);}
.footer-desc{margin-top:16px;font-size:13px;line-height:1.95;color:var(--dark-muted);max-width:24em;}
.footer-col h4{
  font-family:var(--sans);
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--dark-text);margin-bottom:16px;
}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--dark-muted);}
.footer-col a:hover{color:var(--dark-text);text-decoration:underline;text-underline-offset:4px;}
.footer-col p{font-size:13px;line-height:1.95;color:var(--dark-muted);}
.footer-col p + p{margin-top:8px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:56px;padding:22px 0 28px;
  border-top:1px solid rgba(243,239,231,.12);
  font-size:13px;color:var(--dark-muted);
}
.to-top{color:var(--dark-muted);font-size:13px;}
.to-top:hover{color:var(--dark-text);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .main-nav{display:none;}
  .nav-actions{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand-text{font-size:16px;}
  .page-hero{padding:56px 0 52px;}
  .section{padding:72px 0;}
  .section--tight{padding:64px 0;}
  .split{grid-template-columns:1fr;gap:36px;}
  .split-title,.split-text{max-width:none;}
  .step-item{padding:0 0 0 0;border-right:0 !important;}
  .step-item + .step-item{margin-top:32px;padding-top:32px;border-top:1px solid var(--line);}
  .step-num{font-size:44px;margin-bottom:14px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .hero-media{aspect-ratio:16/10;margin-top:36px;}
  .cta-band{padding:64px 0;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .page-title{font-size:clamp(28px,7vw,34px);}
  .section{padding:56px 0;}
  .section--tight{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .split{gap:28px;}
  .jump-grid{grid-template-columns:1fr;gap:16px;}
  .faq-item summary{font-size:16px;padding:20px 0;}
  .hero-actions{gap:12px;}
  .btn{height:46px;}
  .footer-bottom{margin-top:40px;}
}
@media (max-width:520px){
  .brand-text{font-size:15px;}
  .header-inner{height:64px;}
  .site-header.is-scrolled .header-inner{height:58px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .step-figure{aspect-ratio:16/10;}
  .jump-card{padding:20px;gap:14px;}
  .cta-actions .btn{width:100%;}
  .mini-table{font-size:13px;min-width:560px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --ink:#17151C;
  --jade:#2F6E63;
  --jade-dark:#24574E;
  --jade-deep:#1D4841;
  --sand:#FAF8F3;
  --card:#FFFFFF;
  --line:#E7E2D8;
  --muted:#6B6760;
  --ink-soft:#F3EFE7;
  --ink-muted:#A8A399;
  --alert:#C6683C;
  --r-card:6px;
  --r-btn:4px;
  --shadow-1:0 1px 2px rgba(23,21,28,.04),0 10px 24px rgba(23,21,28,.06);
  --shadow-2:0 1px 2px rgba(23,21,28,.06),0 16px 36px rgba(23,21,28,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;letter-spacing:-.01em;line-height:1.25;margin:0;}
h1{font-size:48px;}
h2{font-size:32px;}
h3{font-size:20px;}
h4{font-size:15px;}
p{margin:0;}
a{color:var(--jade);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--jade-dark);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--jade);outline-offset:3px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.grid-x.grid-padding-x{margin-left:-12px;margin-right:-12px;}
.grid-x.grid-padding-x>.cell{padding-left:12px;padding-right:12px;}
.grid-x.gap-y{row-gap:24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,248,243,.96);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{background:#FFFFFF;border-bottom-color:var(--line);}
.header-inner{display:flex;align-items:center;gap:32px;height:72px;transition:height .24s var(--ease);}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto;}
.brand:hover{color:var(--ink);}
.brand-mark{width:28px;height:28px;color:var(--jade);flex:0 0 auto;}
.brand-text{font-family:var(--serif);font-size:17px;font-weight:700;letter-spacing:.02em;}
.main-nav{display:flex;align-items:center;gap:32px;}
.nav-link{position:relative;font-size:14px;color:var(--muted);padding:6px 0;white-space:nowrap;}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--jade);
  transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:14px;}
.nav-search{position:relative;}
.nav-search .search-icon{position:absolute;left:11px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--muted);pointer-events:none;}
.nav-search input[type="search"]{
  width:200px;height:38px;margin:0;
  border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;
  padding:0 12px 0 34px;font-size:13px;color:var(--ink);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input[type="search"]::placeholder{color:var(--ink-muted);}
.nav-search input[type="search"]:focus{
  outline:none;border-color:var(--jade);box-shadow:0 0 0 3px rgba(47,110,99,.12);
}
.nav-login{font-size:14px;color:var(--muted);white-space:nowrap;}
.nav-login:hover{color:var(--jade);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--jade);color:#fff;}
.btn-primary:hover{background:var(--jade-dark);color:#fff;}
.btn-primary:active{background:var(--jade-deep);}
.btn-ghost{border-color:var(--line);color:var(--ink);background:transparent;}
.btn-ghost:hover{border-color:var(--jade);color:var(--jade);}
.btn-light-outline{border-color:rgba(243,239,231,.42);color:var(--ink-soft);background:transparent;}
.btn-light-outline:hover{border-color:var(--ink-soft);color:#fff;background:rgba(243,239,231,.08);}
.btn-lg{height:48px;padding:0 28px;font-size:15px;}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border:1px solid var(--line);
  border-radius:var(--r-btn);background:#fff;padding:0;flex-direction:column;
  align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);}

/* ---------- mobile drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(23,21,28,.42);z-index:70;
  opacity:0;transition:opacity .24s var(--ease);
}
.drawer-mask.is-open{opacity:1;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,86vw);
  background:#fff;z-index:80;display:flex;flex-direction:column;
  padding:20px;transform:translateX(101%);
  transition:transform .28s var(--ease);
  box-shadow:-16px 0 40px rgba(23,21,28,.12);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-top span{font-family:var(--serif);font-size:16px;font-weight:700;}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;font-size:18px;line-height:1;color:var(--ink);cursor:pointer;
}
.drawer-search{position:relative;margin-bottom:20px;}
.drawer-search input{
  width:100%;height:44px;margin:0;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 12px;font-size:14px;background:#fff;color:var(--ink);
}
.drawer-search input:focus{outline:none;border-color:var(--jade);box-shadow:0 0 0 3px rgba(47,110,99,.12);}
.drawer-nav{display:flex;flex-direction:column;flex:1 1 auto;overflow-y:auto;}
.drawer-nav a{
  display:flex;align-items:center;height:56px;font-size:18px;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--jade);font-weight:600;}
.drawer-foot{padding-top:18px;border-top:1px solid var(--line);}
.drawer-foot .btn{width:100%;height:48px;}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--sand);border-bottom:1px solid var(--line);padding:72px 0 64px;}
.starfield{position:absolute;inset:0;pointer-events:none;opacity:.65;background-repeat:no-repeat;}
.page-hero .starfield{
  background-image:
    radial-gradient(1.6px 1.6px at 12% 24%, rgba(23,21,28,.5), transparent 62%),
    radial-gradient(1.6px 1.6px at 34% 72%, rgba(23,21,28,.34), transparent 62%),
    radial-gradient(1.6px 1.6px at 58% 16%, rgba(47,110,99,.55), transparent 62%),
    radial-gradient(1.6px 1.6px at 76% 54%, rgba(23,21,28,.32), transparent 62%),
    radial-gradient(1.6px 1.6px at 91% 82%, rgba(47,110,99,.4), transparent 62%),
    radial-gradient(1.6px 1.6px at 22% 88%, rgba(23,21,28,.28), transparent 62%);
}
@media (prefers-reduced-motion: no-preference){
  .starfield{animation:twinkle 11s ease-in-out infinite;}
  @keyframes twinkle{0%,100%{opacity:.32;}50%{opacity:.68;}}
}
.page-hero .container{position:relative;z-index:2;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;
  color:var(--jade);font-weight:600;
}
.eyebrow::before{content:"";width:16px;height:1px;background:var(--jade);}
.page-hero h1{margin:16px 0 0;max-width:16em;}
.hero-rule{width:32px;height:3px;background:var(--jade);margin:20px 0 18px;}
.hero-sub{font-size:16px;color:var(--muted);max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:28px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line);}
.hero-meta div{font-size:13px;color:var(--muted);}
.hero-meta strong{display:block;font-family:var(--serif);font-size:22px;color:var(--ink);font-weight:700;}
.hero-visual{position:relative;border-radius:var(--r-card);overflow:hidden;aspect-ratio:4/3;background:var(--line);}
.hero-visual img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.hero-visual:hover img{transform:scale(1.02);}
.hero-visual::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(23,21,28,.06);border-radius:var(--r-card);
}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-alt{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head p{font-size:13px;color:var(--muted);}
.section-title{font-size:32px;}
.section-title-sm{font-size:24px;}
.lead{font-size:16px;color:var(--muted);max-width:38em;}

/* block A: split list */
.split-title h2{max-width:9em;}
.split-title p{margin-top:16px;font-size:15px;color:var(--muted);max-width:22em;}
.split-list{border-top:1px solid var(--line);}
.split-item{display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line);}
.split-index{
  flex:0 0 auto;font-family:Georgia,"Times New Roman",serif;font-style:italic;
  font-size:14px;color:var(--jade);padding-top:4px;min-width:26px;
}
.split-body h3{font-size:17px;margin-bottom:6px;}
.split-body p{font-size:15px;color:var(--muted);}
.split-body .tag{
  display:inline-block;margin-top:10px;font-size:12px;letter-spacing:.06em;
  color:var(--jade);border:1px solid rgba(47,110,99,.45);border-radius:2px;
  padding:2px 8px;line-height:1.6;
}

/* block B: steps + image */
.step-item{display:flex;gap:22px;padding:26px 0;border-bottom:1px solid var(--line);}
.step-item:first-child{border-top:1px solid var(--line);}
.step-num{
  flex:0 0 auto;font-family:Georgia,"Times New Roman",serif;font-style:italic;
  font-size:40px;line-height:1;color:#DCD5C7;min-width:56px;
}
.step-body h3{font-size:18px;margin-bottom:6px;}
.step-body p{font-size:15px;color:var(--muted);}
.figure-block{border-radius:var(--r-card);overflow:hidden;background:var(--line);aspect-ratio:5/4;}
.figure-block img{width:100%;height:100%;object-fit:cover;}
.figure-cap{font-size:13px;color:var(--muted);margin-top:12px;line-height:1.7;}

/* block C: jump cards */
.jump-card{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:100%;padding:22px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);
  color:var(--ink);transition:transform .2s var(--ease),box-shadow .2s var(--ease);
  box-shadow:var(--shadow-1);
}
.jump-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);color:var(--ink);}
.jump-card h3{font-size:16px;margin-bottom:6px;}
.jump-card p{font-size:13px;color:var(--muted);line-height:1.75;}
.jump-arrow{flex:0 0 auto;color:var(--jade);font-size:18px;line-height:1;}

/* FAQ */
.faq-list{border-top:1px solid var(--line);max-width:860px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;
  min-height:60px;padding:16px 0;background:none;border:0;text-align:left;cursor:pointer;
  font-size:17px;color:var(--ink);font-weight:600;font-family:var(--sans);line-height:1.6;
}
.faq-q:hover{color:var(--jade-dark);}
.faq-sign{
  flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .28s var(--ease);
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:var(--jade);border-radius:1px;
}
.faq-sign::before{left:0;right:0;top:10px;height:2px;}
.faq-sign::after{top:0;bottom:0;left:10px;width:2px;}
.faq-item.is-open .faq-sign{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a p{font-size:15px;color:var(--muted);padding:0 40px 20px 0;line-height:1.85;}

/* CTA */
.cta-band{position:relative;overflow:hidden;background:var(--ink);color:var(--ink-soft);padding:80px 0;}
.cta-band .starfield{
  background-image:
    radial-gradient(1.6px 1.6px at 18% 30%, rgba(243,239,231,.6), transparent 62%),
    radial-gradient(1.6px 1.6px at 42% 74%, rgba(243,239,231,.4), transparent 62%),
    radial-gradient(1.6px 1.6px at 64% 22%, rgba(243,239,231,.55), transparent 62%),
    radial-gradient(1.6px 1.6px at 82% 62%, rgba(243,239,231,.35), transparent 62%),
    radial-gradient(1.6px 1.6px at 94% 38%, rgba(243,239,231,.45), transparent 62%);
  opacity:.5;
}
.cta-grid-lines{
  position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:linear-gradient(to right,rgba(243,239,231,1) 1px,transparent 1px);
  background-size:80px 100%;
}
.cta-band .container{position:relative;z-index:2;}
.cta-band h2{color:#fff;max-width:18em;}
.cta-band .cta-sub{margin-top:16px;font-size:15px;color:var(--ink-muted);max-width:36em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}

/* footer */
.site-footer{background:var(--ink);color:var(--ink-muted);padding:72px 0 32px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.site-footer .brand{color:var(--ink-soft);}
.site-footer .brand:hover{color:#fff;}
.site-footer .brand-mark{color:var(--jade);}
.footer-desc{font-size:14px;line-height:1.8;margin-top:16px;color:var(--ink-muted);max-width:20em;}
.footer-col h4{font-family:var(--serif);font-size:14px;color:var(--ink-soft);margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{list-style:none;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--ink-muted);}
.footer-col a:hover{color:var(--ink-soft);text-decoration:underline;}
.footer-col p{font-size:14px;line-height:1.9;color:var(--ink-muted);margin-bottom:6px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(243,239,231,.12);
  font-size:13px;color:var(--ink-muted);
}
.footer-bottom .to-top{color:var(--ink-muted);font-size:13px;}
.footer-bottom .to-top:hover{color:var(--ink-soft);}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .main-nav,.nav-tools{display:none;}
  .nav-toggle{display:flex;}
  h1{font-size:38px;}
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .page-hero{padding:56px 0 48px;}
  .cta-band{padding:64px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .hero-visual{aspect-ratio:16/10;margin-top:32px;}
}
@media (max-width:768px){
  body{font-size:15px;}
  h1{font-size:32px;}
  h2,.section-title{font-size:24px;}
  h3{font-size:18px;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .page-hero{padding:44px 0 40px;}
  .hero-rule{margin:16px 0 14px;}
  .hero-actions .btn{flex:1 1 auto;}
  .hero-meta{gap:20px;}
  .cta-band{padding:56px 0;}
  .cta-band h2{font-size:24px;}
  .faq-q{font-size:16px;}
  .step-num{font-size:32px;min-width:44px;}
  .step-item{padding:20px 0;}
  .split-item{padding:18px 0;}
}
@media (max-width:640px){
  h1{font-size:28px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-actions .btn{width:100%;}
  .hero-actions .btn{width:100%;}
  .cta-actions,.hero-actions{gap:10px;}
  .figure-cap{font-size:12px;}
}

/* roulang page: category4 */
:root{
  --ink:#17151C;
  --ink-soft:#2B2830;
  --jade:#2F6E63;
  --jade-dark:#24574E;
  --jade-active:#1D4841;
  --paper:#FAF8F3;
  --card:#FFFFFF;
  --line:#E7E2D8;
  --text-2:#6B6760;
  --dark-text:#F3EFE7;
  --dark-2:#A8A399;
  --orange:#C6683C;
  --radius-card:6px;
  --radius-btn:4px;
  --shadow-1:0 1px 2px rgba(23,21,28,.04), 0 10px 24px rgba(23,21,28,.06);
  --shadow-2:0 1px 2px rgba(23,21,28,.06), 0 16px 36px rgba(23,21,28,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Songti SC","SimSun",Georgia,serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --section-y:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;letter-spacing:-0.01em;line-height:1.25;color:var(--ink);margin:0;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{color:var(--jade);text-decoration:none;transition:color .24s var(--ease);}
a:hover{color:var(--jade-dark);}
img{max-width:100%;display:block;height:auto;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--jade);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,248,243,.97);
  border-bottom:1px solid transparent;
  transition:height .28s var(--ease), border-color .28s var(--ease), background .28s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);background:#FAF8F3;}
.header-inner{
  display:flex;align-items:center;gap:32px;
  height:72px;
  transition:height .28s var(--ease);
}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto;}
.brand:hover{color:var(--ink);}
.brand-mark{width:28px;height:28px;color:var(--jade);flex:0 0 auto;}
.brand-text{font-family:var(--serif);font-size:18px;font-weight:700;letter-spacing:.02em;color:var(--ink);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:32px;flex:1 1 auto;}
.nav-link{
  position:relative;font-size:14px;color:#3D3944;padding:6px 0;white-space:nowrap;
  transition:color .24s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--jade);
  transform:scaleX(0);transform-origin:left center;transition:transform .28s var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search input[type="search"]{
  width:200px;height:36px;border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:0 12px;font-size:14px;color:var(--ink);background:#fff;
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.nav-search input[type="search"]::placeholder{color:#9A958C;}
.nav-search input[type="search"]:focus{
  outline:none;border-color:var(--jade);box-shadow:0 0 0 3px rgba(47,110,99,.12);
}
.link-login{font-size:14px;color:#3D3944;padding:4px 2px;}
.link-login:hover{color:var(--jade);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:500;line-height:1;cursor:pointer;text-decoration:none;
  transition:background .24s var(--ease), color .24s var(--ease), border-color .24s var(--ease), transform .24s var(--ease), box-shadow .24s var(--ease);
}
.btn-primary{background:var(--jade);color:#fff;}
.btn-primary:hover{background:var(--jade-dark);color:#fff;}
.btn-primary:active{background:var(--jade-active);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--jade);color:var(--jade);}
.btn-sm{height:36px;padding:0 16px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  background:transparent;border:1px solid var(--line);border-radius:var(--radius-btn);
  cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);
  background:var(--paper);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .3s var(--ease);
  z-index:200;display:flex;flex-direction:column;padding:20px;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:var(--radius-btn);
  font-size:20px;line-height:1;color:var(--ink);cursor:pointer;
}
.drawer-search input[type="search"]{
  width:100%;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:0 14px;font-size:15px;background:#fff;color:var(--ink);
}
.drawer-search input[type="search"]:focus{outline:none;border-color:var(--jade);box-shadow:0 0 0 3px rgba(47,110,99,.12);}
.drawer-nav{display:flex;flex-direction:column;margin:24px 0;border-top:1px solid var(--line);}
.drawer-nav a{
  display:flex;align-items:center;min-height:56px;font-size:18px;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--jade);font-weight:600;}
.drawer-foot{margin-top:auto;padding-top:20px;}
.drawer-cta{width:100%;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(23,21,28,.42);opacity:0;pointer-events:none;
  transition:opacity .3s var(--ease);z-index:190;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}

/* ============ Page Hero ============ */
.page-hero{padding:72px 0 64px;border-bottom:1px solid var(--line);background:var(--paper);}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--jade);
  border:1px solid rgba(47,110,99,.35);border-radius:2px;padding:4px 10px;margin-bottom:18px;
}
.page-hero h1{font-size:44px;font-weight:700;margin-bottom:20px;max-width:16em;}
.page-hero h1 .thin{color:var(--text-2);font-weight:600;}
.hero-lead{font-size:17px;color:var(--text-2);max-width:34em;margin-bottom:24px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:18px;}
.hero-note{font-size:13px;color:var(--text-2);}
.hero-thumb{margin:0;position:relative;border-radius:var(--radius-card);overflow:hidden;background:#EFEBE2;}
.hero-thumb img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--radius-card);}

/* ============ Sections ============ */
.section{padding:var(--section-y) 0;}
.section--alt{background:#F4F1E9;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:44px;max-width:44em;}
.section-title{font-size:32px;margin-bottom:14px;}
.section-sub{font-size:15px;color:var(--text-2);margin:0;}

/* ============ Stats bar ============ */
.stats-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:40px 0;background:var(--card);}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.stat{position:relative;padding-left:16px;}
.stat::before{content:"";position:absolute;left:0;top:6px;width:2px;height:26px;background:var(--jade);}
.stat-num{font-family:var(--serif);font-style:italic;font-size:34px;line-height:1.1;color:var(--ink);margin-bottom:6px;}
.stat-label{font-size:13px;color:var(--text-2);margin:0;}

/* ============ Split block ============ */
.split-row{align-items:flex-start;}
.about-aside{position:sticky;top:96px;}
.point-list{border-top:1px solid var(--line);}
.point-item{padding:22px 0;border-bottom:1px solid var(--line);}
.point-item h3{font-size:19px;margin-bottom:8px;}
.point-item p{font-size:15px;color:var(--text-2);margin:0;}

/* ============ Steps ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;border-top:1px solid rgba(23,21,28,.08);padding-top:40px;}
.step{position:relative;padding-right:24px;}
.step + .step{border-left:1px solid var(--line);padding-left:24px;padding-right:0;}
.step-num{display:block;font-family:var(--serif);font-style:italic;font-size:52px;line-height:1;color:#DCD6C8;margin-bottom:14px;}
.step-body h3{font-size:19px;margin-bottom:10px;}
.step-body p{font-size:15px;color:var(--text-2);margin:0;}

/* ============ Jump cards ============ */
.jump-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.jump-card{
  display:flex;align-items:center;gap:16px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px;color:var(--ink);box-shadow:var(--shadow-1);
  transition:transform .26s var(--ease), box-shadow .26s var(--ease);
}
.jump-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);color:var(--ink);}
.jump-thumb{width:96px;height:72px;object-fit:cover;border-radius:var(--radius-card);flex:0 0 auto;background:#EFEBE2;}
.jump-body{flex:1 1 auto;min-width:0;}
.jump-body h3{font-size:18px;margin-bottom:6px;}
.jump-body p{font-size:14px;color:var(--text-2);margin:0;}
.jump-arrow{color:var(--jade);font-size:18px;flex:0 0 auto;transition:transform .26s var(--ease);}
.jump-card:hover .jump-arrow{transform:translateX(4px);}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:16px 0;font-size:17px;color:var(--ink);font-family:var(--serif);font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-family:var(--sans);font-size:22px;color:var(--jade);line-height:1;
  transition:transform .28s var(--ease);flex:0 0 auto;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-answer{padding:0 0 20px;font-size:15px;color:var(--text-2);line-height:1.85;max-width:46em;}

/* ============ CTA band ============ */
.cta-band{position:relative;background:var(--ink);color:var(--dark-text);padding:80px 0;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(circle, rgba(243,239,231,.35) 1px, transparent 1px),
    linear-gradient(to right, rgba(243,239,231,.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(243,239,231,.06) 1px, transparent 1px);
  background-size:120px 120px, 80px 80px, 80px 80px;
  opacity:.55;pointer-events:none;
}
.cta-inner{position:relative;z-index:1;max-width:44em;}
.cta-title{color:var(--dark-text);font-size:32px;margin-bottom:14px;}
.cta-sub{color:var(--dark-2);font-size:16px;margin-bottom:28px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.btn-light-ghost{border-color:rgba(243,239,231,.35);color:var(--dark-text);background:transparent;}
.btn-light-ghost:hover{border-color:var(--dark-text);color:#fff;}

/* ============ Footer ============ */
.site-footer{background:var(--ink);color:var(--dark-2);padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand{color:var(--dark-text);margin-bottom:14px;}
.footer-brand .brand-text{color:var(--dark-text);}
.footer-brand .brand-mark{color:var(--jade);}
.footer-desc{font-size:14px;color:var(--dark-2);margin:0;max-width:20em;}
.footer-col h4{font-family:var(--sans);font-size:13px;letter-spacing:.08em;color:var(--dark-text);margin:0 0 16px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--dark-2);}
.footer-col a:hover{color:var(--dark-text);text-decoration:underline;text-underline-offset:3px;}
.footer-col p{font-size:14px;color:var(--dark-2);margin:0 0 10px;}
.footer-col p:last-child{margin-bottom:0;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(243,239,231,.12);padding-top:22px;font-size:13px;color:var(--dark-2);
}
.to-top{font-size:13px;color:var(--dark-2);}
.to-top:hover{color:var(--dark-text);}

/* ============ Foundation overrides ============ */
.grid-padding-x{margin-left:-12px;margin-right:-12px;}
.grid-padding-x > .cell{padding-left:12px;padding-right:12px;}
.grid-padding-x.margin-bottom > .cell{margin-bottom:24px;}
body,button,input,select,textarea{font-family:var(--sans);}
h1,h2,h3,h4{font-family:var(--serif);}

/* ============ Responsive ============ */
@media (max-width:1024px){
  :root{--section-y:72px;}
  .main-nav,.header-tools{display:none;}
  .nav-toggle{display:flex;}
  .page-hero h1{font-size:34px;}
  .steps{grid-template-columns:repeat(2,1fr);gap:26px;}
  .step{padding-right:0;}
  .step + .step{border-left:none;padding-left:0;}
  .jump-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .about-aside{position:static;}
  .hero-thumb{margin-top:32px;max-width:360px;}
  .page-hero{padding:52px 0 48px;}
}
@media (max-width:640px){
  :root{--section-y:56px;}
  .container{padding:0 20px;}
  .header-inner{height:64px;gap:12px;}
  .site-header.is-scrolled .header-inner{height:56px;}
  .brand-text{font-size:16px;}
  .page-hero h1{font-size:28px;}
  .hero-lead{font-size:15px;}
  .section-title{font-size:24px;}
  .cta-title{font-size:24px;}
  .stats-grid{grid-template-columns:1fr;gap:18px;}
  .steps{grid-template-columns:1fr;}
  .jump-grid{grid-template-columns:1fr;}
  .jump-thumb{width:80px;height:64px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn{height:46px;width:100%;}
  .btn-sm{height:42px;width:auto;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .faq-item summary{font-size:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}