/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root{
  --ink:#10312E;
  --ink-2:#17403B;
  --accent:#E2562B;
  --accent-hover:#C8461F;
  --accent-soft:#FBE7DE;
  --sand:#F4EFE7;
  --paper:#FFFFFF;
  --line:#E4DCD1;
  --text:#1B1A17;
  --muted:#6B6559;
  --jade:#1E6F5C;
  --r-s:8px;
  --r-m:14px;
  --r-l:20px;
  --r-p:999px;
  --sh-1:0 1px 2px rgba(16,49,46,.06),0 8px 24px rgba(16,49,46,.06);
  --sh-2:0 2px 4px rgba(16,49,46,.08),0 16px 40px rgba(16,49,46,.12);
  --wrap:1280px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,system-ui,"Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  padding-bottom:64px;
}
img{max-width:100%;display:block;border:0}
a{color:var(--accent);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--accent-hover)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
input{font:inherit}
:focus-visible{outline:3px solid rgba(226,86,43,.35);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
/* ===================== 容器 ===================== */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-p);
  font-size:15.5px;font-weight:600;letter-spacing:.02em;line-height:1.2;
  transition:background-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
  white-space:nowrap;
}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 1px 2px rgba(16,49,46,.08)}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);background:#B23C18}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{background:var(--ink);color:var(--sand);border-color:var(--ink)}
.link-cta{display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-weight:600;font-size:15px}
.link-cta .arw{transition:transform .18s var(--ease);display:inline-block}
.link-cta:hover{color:var(--accent-hover);text-decoration:underline;text-underline-offset:4px}
.link-cta:hover .arw{transform:translateX(4px)}
/* ===================== 顶部导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(244,239,231,.94);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:32px;height:76px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:17px;letter-spacing:.01em}
.brand:hover{color:var(--ink)}
.brand-mark{
  position:relative;flex:0 0 auto;
  width:34px;height:34px;border-radius:var(--r-s);
  background:var(--ink);color:var(--accent-soft);
  display:inline-flex;align-items:center;justify-content:center;
  font-family:Georgia,"Times New Roman",serif;font-size:18px;font-weight:700;line-height:1;
}
.brand-mark::after{content:"";position:absolute;right:5px;bottom:5px;width:5px;height:5px;border-radius:50%;background:var(--accent)}
.nav-links{display:flex;align-items:center}
.nav-links li{display:flex;align-items:center}
.nav-links li+li::before{content:"";display:block;width:1px;height:14px;background:var(--line)}
.nav-links a{
  position:relative;display:inline-block;padding:8px 20px;
  font-size:15px;letter-spacing:.02em;color:var(--text);
}
.nav-links a::after{
  content:"";position:absolute;left:20px;right:20px;bottom:0;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:center;
  transition:transform .2s var(--ease);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,
.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-right{display:flex;align-items:center;gap:16px}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-s);color:var(--ink);
  transition:background-color .18s var(--ease),border-color .18s var(--ease);
}
.nav-toggle:hover{background:var(--paper);border-color:rgba(16,49,46,.2)}
/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--sand);
  transform:translateX(100%);visibility:hidden;
  transition:transform .3s var(--ease),visibility .3s;
  display:flex;flex-direction:column;padding:20px 24px 32px;
}
.drawer.open{transform:translateX(0);visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between}
.drawer-close{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-s);color:var(--ink);
}
.drawer-nav{margin-top:40px;display:flex;flex-direction:column}
.drawer-nav a{
  font-size:18px;line-height:56px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--accent);font-weight:600}
.drawer-cta{margin-top:auto;display:block}
.drawer-cta .btn{width:100%}
/* ===================== 首屏 ===================== */
.hero{position:relative;padding:0 0 8px;overflow:hidden}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:64px;align-items:center;min-height:72vh;padding:64px 0 88px;
}
.hero-badge{
  display:inline-block;font-size:12.5px;letter-spacing:.12em;
  padding:6px 14px;border-radius:var(--r-p);
  background:var(--accent-soft);color:var(--accent-hover);font-weight:600;
}
.hero h1{
  margin:22px 0 0;
  font-size:clamp(30px,4.6vw,54px);font-weight:700;line-height:1.2;
  letter-spacing:-.02em;color:var(--ink);
}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:var(--muted);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.trust-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:0;
  margin-top:36px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--muted);letter-spacing:.02em;
}
.trust-row li{display:flex;align-items:center;padding:4px 18px 4px 0}
.trust-row li+li{padding-left:18px;border-left:1px solid var(--line)}
.trust-row li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--jade);margin-right:8px;flex:0 0 auto}
.hero-visual{
  position:relative;aspect-ratio:4/5;border-radius:var(--r-l);overflow:hidden;
  border:1px solid rgba(16,49,46,.22);box-shadow:var(--sh-1);background:var(--ink);
}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-index{
  position:absolute;left:20px;top:20px;
  width:46px;height:46px;border-radius:50%;
  background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:Georgia,"Times New Roman",serif;font-size:15px;letter-spacing:.06em;
}
/* ===================== 板块通用 ===================== */
.section{padding:100px 0}
.section-tight{padding:0 0 100px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px}
.sec-head h2{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.3;letter-spacing:-.01em;color:var(--ink)}
.sec-lead{margin-top:12px;font-size:15.5px;color:var(--muted);max-width:42em}
.sec-divider{height:1px;background:var(--line)}
/* ===================== 卖点三连 ===================== */
.points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:48px 32px}
.point-card{position:relative;border-top:1px solid var(--line);padding:26px 4px 0}
.point-card:first-child{padding-left:24px}
.point-card:first-child::before{
  content:"";position:absolute;left:0;top:-1px;width:3px;height:118px;background:var(--accent);border-radius:2px;
}
.point-card .num{
  font-family:Georgia,"Times New Roman",serif;font-size:13px;letter-spacing:.12em;color:var(--accent);
}
.point-card h3{margin:12px 0 10px;font-size:21px;font-weight:600;line-height:1.4;color:var(--ink)}
.point-card p{font-size:15.5px;color:var(--muted);line-height:1.78}
/* ===================== 场景演示 ===================== */
.scene{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:56px;align-items:center;padding:64px 0}
.scene+.scene{border-top:1px solid var(--line)}
.scene-media{border-radius:var(--r-m);overflow:hidden;border:1px solid var(--line);background:var(--paper);box-shadow:var(--sh-1)}
.scene-media img{width:100%;aspect-ratio:3/2;object-fit:cover}
.scene.reverse .scene-media{order:2}
.scene-tag{
  display:inline-block;font-size:12px;letter-spacing:.1em;font-weight:600;
  padding:5px 12px;border-radius:var(--r-s);
  background:rgba(30,111,92,.1);color:var(--jade);
}
.scene-body h3{margin:16px 0 12px;font-size:clamp(21px,2.2vw,26px);font-weight:700;line-height:1.4;color:var(--ink)}
.scene-body>p{font-size:15.5px;color:var(--muted)}
.steps{margin:22px 0 24px;display:flex;flex-direction:column;gap:12px}
.steps li{display:flex;gap:14px;align-items:flex-start;font-size:15.5px;color:var(--text);line-height:1.7}
.step-num{
  flex:0 0 auto;font-family:Georgia,"Times New Roman",serif;font-size:13px;
  letter-spacing:.08em;color:var(--accent);padding-top:4px;
}
/* ===================== 社会认同 ===================== */
.quotes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0}
.quote{padding:0 32px;border-left:1px solid var(--line)}
.quote:first-child{padding-left:0;border-left:0}
.quote blockquote{font-size:16px;line-height:1.8;color:var(--text)}
.quote figcaption{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--muted);letter-spacing:.02em;
}
.stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:32px;margin-top:56px;padding-top:36px;border-top:1px solid var(--line);
}
.stat{display:flex;flex-direction:column;gap:6px}
.stat-num{
  font-family:Georgia,"Times New Roman",serif;font-variant-numeric:tabular-nums;
  font-size:clamp(30px,3.4vw,44px);line-height:1.1;font-weight:700;color:var(--ink);letter-spacing:-.01em;
}
.stat-label{font-size:13px;color:var(--muted);letter-spacing:.04em}
/* ===================== 内容卡片列表 ===================== */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.post-card:hover{border-color:rgba(16,49,46,.2);box-shadow:var(--sh-2);transform:translateY(-2px)}
.post-card>a{display:block;color:inherit}
.post-card>a:hover{color:inherit}
.post-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--sand)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{display:block;padding:22px 24px 20px}
.badge{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.06em;
  padding:4px 10px;border-radius:var(--r-s);
  background:var(--accent-soft);color:var(--accent-hover);
}
.post-body h3{
  margin:12px 0 8px;font-size:19px;font-weight:600;line-height:1.45;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-excerpt{
  font-size:14.5px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);letter-spacing:.04em;
}
.post-meta .arrow{color:var(--accent);transition:transform .18s var(--ease)}
.post-card:hover .post-meta .arrow{transform:translateX(4px)}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-m);
  padding:48px 24px;text-align:center;background:rgba(255,255,255,.5);
}
.empty-state p{font-size:14px;color:var(--muted);margin-bottom:18px}
/* ===================== FAQ ===================== */
.faq-list.accordion{background:transparent;border:0;border-top:1px solid var(--line);margin:0}
.faq-list .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.faq-list .accordion-title{
  position:relative;display:block;
  padding:22px 56px 22px 0;
  font-size:17px;font-weight:600;line-height:1.6;color:var(--ink);
  background:transparent;border:0;transition:color .18s var(--ease);
}
.faq-list .accordion-title:hover{color:var(--accent)}
.faq-list .accordion-title::before{
  content:"+";position:absolute;right:6px;top:22px;
  font-size:22px;line-height:1;color:var(--accent);
  transform:none;transition:transform .2s var(--ease);
}
.faq-list .accordion-title[aria-expanded="true"]::before{content:"−"}
.faq-list .accordion-content{
  padding:0 0 22px;border:0;background:transparent;
  font-size:15.5px;line-height:1.75;color:var(--muted);
}
/* ===================== 分类入口 ===================== */
.cat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.cat-card{
  display:block;position:relative;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-m);
  padding:34px 32px;box-shadow:var(--sh-1);color:inherit;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.cat-card:hover{color:inherit;border-color:rgba(16,49,46,.22);box-shadow:var(--sh-2);transform:translateY(-2px)}
.cat-index{font-family:Georgia,"Times New Roman",serif;font-size:13px;letter-spacing:.12em;color:var(--accent)}
.cat-card h3{margin:14px 0 10px;font-size:22px;font-weight:700;line-height:1.4;color:var(--ink)}
.cat-card p{font-size:15px;color:var(--muted);margin-bottom:18px}
/* ===================== CTA 带 ===================== */
.cta-band{background:var(--ink);color:var(--sand);border-radius:var(--r-l);padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;color:var(--sand)}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(244,239,231,.72);max-width:36em}
.cta-band .btn-primary{background:var(--accent)}
.cta-band .btn-primary:hover{background:var(--accent-hover)}
/* ===================== 页脚 ===================== */
.site-footer{background:var(--ink);color:var(--sand);margin-top:0;padding:76px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:48px}
.foot-col h4{font-size:13px;font-weight:600;letter-spacing:.14em;color:rgba(244,239,231,.6);margin-bottom:18px}
.foot-logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--sand)}
.foot-logo .brand-mark{background:var(--sand);color:var(--ink)}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.75;color:rgba(244,239,231,.68);max-width:26em}
.foot-col ul li{margin-bottom:10px}
.foot-col ul a{font-size:14.5px;color:rgba(244,239,231,.82)}
.foot-col ul a:hover{color:var(--accent)}
.foot-note{font-size:13.5px;color:rgba(244,239,231,.62);line-height:1.75}
.foot-form{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.foot-form input{
  height:48px;border-radius:10px;border:1px solid rgba(244,239,231,.2);
  background:rgba(244,239,231,.06);color:var(--sand);padding:0 14px;font-size:14.5px;
  transition:border-color .18s var(--ease),background-color .18s var(--ease);
}
.foot-form input::placeholder{color:rgba(244,239,231,.45)}
.foot-form input:focus{outline:0;border-color:var(--accent);background:rgba(244,239,231,.1)}
.foot-form .btn{align-self:flex-start}
.foot-bottom{
  margin-top:64px;padding:24px 0 32px;
  border-top:1px solid rgba(244,239,231,.14);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.foot-bottom p{font-size:13.5px;color:rgba(244,239,231,.66);letter-spacing:.02em}
/* ===================== 底部固定转化条 ===================== */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  background:var(--ink);color:var(--sand);
  padding-bottom:env(safe-area-inset-bottom);
  opacity:0;transform:translateY(100%);pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease);
  border-top:1px solid rgba(244,239,231,.14);
}
.sticky-bar.show{opacity:1;transform:translateY(0);pointer-events:auto}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:64px;padding-top:10px;padding-bottom:10px}
.sticky-text{font-size:14.5px;color:rgba(244,239,231,.86)}
.sticky-text-short{display:none;font-size:14px;color:rgba(244,239,231,.86)}
.sticky-actions{display:flex;align-items:center;gap:14px}
.sticky-close{
  width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-s);border:1px solid rgba(244,239,231,.22);
  color:rgba(244,239,231,.75);transition:border-color .18s var(--ease),color .18s var(--ease);
}
.sticky-close:hover{border-color:rgba(244,239,231,.5);color:var(--sand)}
/* ===================== 响应式 ===================== */
@media (max-width:1279px){
  .hero-grid{gap:48px}
}
@media (max-width:1023px){
  .nav-links,.nav-right .btn{display:none}
  .nav-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:40px;min-height:0;padding:44px 0 56px}
  .hero-visual{aspect-ratio:4/3;max-width:560px}
  .points{grid-template-columns:1fr;gap:32px}
  .point-card:first-child{padding-left:24px}
  .scene,.scene.reverse{grid-template-columns:1fr;gap:32px;padding:48px 0}
  .scene.reverse .scene-media{order:0}
  .quotes{grid-template-columns:1fr;gap:0}
  .quote{padding:26px 0;border-left:0;border-top:1px solid var(--line)}
  .quote:first-child{border-top:1px solid var(--line);padding-top:26px}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .cat-grid{grid-template-columns:1fr;gap:20px}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:40px 32px}
  .cta-band{padding:40px 32px}
}
@media (max-width:767px){
  .wrap{padding:0 16px}
  .section{padding:64px 0}
  .section-tight{padding:0 0 64px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}
  .hero h1{font-size:clamp(28px,8vw,34px)}
  .hero-sub{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-visual{aspect-ratio:1/1;max-width:100%}
  .post-grid{grid-template-columns:1fr;gap:16px}
  .stats{grid-template-columns:1fr;gap:24px;padding-top:28px;margin-top:40px}
  .foot-grid{grid-template-columns:1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .cta-band .btn-primary{width:100%}
  .sticky-text{display:none}
  .sticky-text-short{display:block}
  .sticky-inner{gap:12px}
  .sticky-actions .btn{padding:10px 16px;font-size:13.5px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:519px){
  .trust-row li{padding:4px 12px 4px 0}
  .trust-row li+li{padding-left:12px}
  .hero-badge{font-size:11.5px}
  .faq-list .accordion-title{font-size:16px;padding-right:44px}
}

/* roulang page: category1 */
:root{
  --ink:#10312E;
  --ink-2:#17403B;
  --accent:#E2562B;
  --accent-hover:#C8461F;
  --accent-soft:#FBE7DE;
  --jade:#1E6F5C;
  --jade-soft:rgba(30,111,92,.10);
  --sand:#F4EFE7;
  --paper:#FFFFFF;
  --line:#E4DCD1;
  --text:#1B1A17;
  --muted:#6B6559;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,49,46,.06),0 8px 24px rgba(16,49,46,.06);
  --sh-2:0 2px 4px rgba(16,49,46,.08),0 16px 40px rgba(16,49,46,.12);
  --wrap:1280px;
  --gap-section:84px;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:ui-serif,Georgia,"Times New Roman",serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-bottom:76px;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--accent);text-decoration:none;transition:color .18s ease-out, border-color .18s ease-out, background-color .18s ease-out;}
a:hover{color:var(--accent-hover);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
input,button,textarea{font-family:inherit;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--ink);}
:focus-visible{outline:3px solid rgba(226,86,43,.35);outline-offset:2px;border-radius:4px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* 容器 */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}
.grid-container{max-width:var(--wrap);padding-left:24px;padding-right:24px;}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(244,239,231,.94);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:76px;
}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink);font-weight:700;font-size:17px;letter-spacing:.01em;white-space:nowrap;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:var(--r-sm);
  background:var(--ink);color:var(--sand);
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:18px;font-weight:700;line-height:1;
  border:1px solid rgba(226,86,43,.55);
  box-shadow:inset 0 -6px 0 rgba(226,86,43,.85);
}
.nav-links{display:flex;align-items:center;gap:34px;}
.nav-links li{position:relative;}
.nav-links a{
  display:inline-block;padding:6px 0;font-size:15px;letter-spacing:.02em;color:var(--text);
  border-bottom:2px solid transparent;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;background:var(--accent);
  transition:left .2s ease-out, right .2s ease-out;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{left:0;right:0;}
.nav-links a.active{color:var(--ink);font-weight:600;}
.nav-links a.active::after{left:0;right:0;}
.header-cta{display:inline-flex;align-items:center;gap:18px;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--paper);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--ink);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);
  background:var(--paper);border-left:1px solid var(--line);z-index:90;
  transform:translateX(102%);transition:transform .24s ease-out;
  display:flex;flex-direction:column;padding:24px;
}
body.nav-open .nav-drawer{transform:translateX(0);}
body.nav-open{overflow:hidden;}
.drawer-close{
  align-self:flex-end;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:transparent;display:inline-flex;align-items:center;justify-content:center;
}
.drawer-links{margin-top:34px;display:flex;flex-direction:column;gap:6px;}
.drawer-links a{font-size:18px;line-height:56px;color:var(--ink);border-bottom:1px solid var(--line);}
.drawer-links a.active{color:var(--accent);}
.drawer-foot{margin-top:auto;padding-top:24px;}
.drawer-mask{position:fixed;inset:0;background:rgba(16,49,46,.42);opacity:0;visibility:hidden;transition:opacity .24s ease-out;z-index:80;}
body.nav-open .drawer-mask{opacity:1;visibility:visible;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.02em;text-align:center;
  transition:transform .18s ease-out, box-shadow .18s ease-out, background-color .18s ease-out, color .18s ease-out, border-color .18s ease-out;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(226,86,43,.22);}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 12px 28px rgba(226,86,43,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{background:var(--ink);border-color:var(--ink);color:var(--sand);}
.btn-light{background:var(--sand);color:var(--ink);}
.btn-light:hover{background:#fff;color:var(--ink);transform:translateY(-1px);}
.btn-sm{padding:11px 20px;font-size:14px;}
.btn-block{width:100%;}

.link-cta{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;color:var(--accent);}
.link-cta svg{transition:transform .18s ease-out;}
.link-cta:hover{color:var(--accent-hover);text-decoration:underline;text-underline-offset:4px;}
.link-cta:hover svg{transform:translateX(4px);}

/* 徽章与标签 */
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:var(--accent-soft);color:#9A3412;
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;font-weight:600;
}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--jade-soft);color:var(--jade);
  font-size:12px;letter-spacing:.06em;font-weight:600;
}
.tag-accent{background:var(--accent-soft);color:var(--accent-hover);}
.dot::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);vertical-align:middle;margin-right:10px;}

/* 页头横幅 */
.banner{position:relative;background:var(--ink);color:var(--sand);overflow:hidden;}
.banner::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.34;
}
.banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,49,46,.58) 0%,rgba(16,49,46,.9) 100%);
}
.banner .wrap{position:relative;z-index:2;padding-top:72px;padding-bottom:64px;max-width:var(--wrap);}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:rgba(244,239,231,.72);margin-bottom:26px;}
.breadcrumb a{color:rgba(244,239,231,.86);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:rgba(244,239,231,.4);}
.breadcrumb .current{color:rgba(244,239,231,.6);}
.banner h1{
  color:var(--sand);
  font-size:clamp(30px,4.6vw,54px);
  line-height:1.2;letter-spacing:-.02em;max-width:16em;
}
.banner .banner-sub{margin-top:20px;max-width:640px;color:rgba(244,239,231,.82);font-size:16px;}

/* 引导说明 */
.lead-section{padding:56px 0 0;}
.lead-grid{border-left:3px solid var(--accent);padding-left:22px;}
.lead-text{font-size:17px;line-height:1.85;color:var(--text);max-width:740px;margin:0;}
.lead-meta{margin-top:20px;display:flex;flex-wrap:wrap;gap:12px;}

/* 概览数据条 */
.stats-section{padding:56px 0 0;}
.stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
}
.stat{padding:26px 28px;border-right:1px solid var(--line);}
.stat:last-child{border-right:0;}
.stat-num{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--ink);line-height:1.1;}
.stat-label{margin-top:8px;font-size:13px;color:var(--muted);letter-spacing:.02em;}

/* 板块通用 */
.section{padding-top:var(--gap-section);}
.section-head{max-width:740px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,3vw,36px);line-height:1.3;}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);margin-bottom:14px;font-weight:600;
}

/* 图文交错 */
.split{padding:44px 0;}
.split + .split{border-top:1px solid var(--line);}
.split-media{position:relative;}
.split-media img{
  width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--r-md);
  border:1px solid var(--line);box-shadow:var(--sh-1);background:var(--paper);
}
.media-index{
  position:absolute;left:-14px;top:-14px;
  width:52px;height:52px;border-radius:var(--r-sm);
  background:var(--ink);color:var(--sand);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:18px;font-weight:700;
  border:1px solid rgba(226,86,43,.6);
}
.split-body h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;margin-bottom:16px;}
.split-body p{color:var(--text);}
.point-list{margin:22px 0 24px;display:flex;flex-direction:column;gap:12px;}
.point-list li{
  position:relative;padding-left:20px;font-size:15.5px;color:var(--text);line-height:1.7;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:.68em;width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.split.reverse .split-media{order:2;}
.split.reverse .split-body{order:1;}

/* 编号流程 */
.steps-section{padding-top:var(--gap-section);}
.steps{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.step{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px 26px;box-shadow:var(--sh-1);position:relative;
  transition:transform .18s ease-out, box-shadow .18s ease-out, border-color .18s ease-out;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(16,49,46,.2);}
.step-num{
  font-family:var(--font-num);font-size:14px;letter-spacing:.14em;color:var(--accent);font-weight:700;
  display:block;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:18px;
}
.step h3{font-size:20px;line-height:1.4;margin-bottom:10px;}
.step p{font-size:15px;color:var(--muted);margin:0;}
.step.first::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:3px;background:var(--accent);
}

/* FAQ */
.faq-section{padding-top:var(--gap-section);}
.faq-panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:8px 28px;}
.accordion{margin:0;background:transparent;}
.accordion .accordion-item{border:0;border-bottom:1px solid var(--line);}
.accordion .accordion-item:last-child{border-bottom:0;}
.accordion .accordion-title{
  display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:17px;font-weight:600;color:var(--ink);line-height:1.55;
  background:transparent;border:0;
}
.accordion .accordion-title:hover{color:var(--accent);}
.accordion .accordion-title .faq-icon{
  flex:0 0 16px;width:16px;height:16px;position:relative;margin-top:8px;
}
.accordion .accordion-title .faq-icon::before,
.accordion .accordion-title .faq-icon::after{
  content:"";position:absolute;background:var(--accent);transition:transform .2s ease-out, opacity .2s ease-out;
}
.accordion .accordion-title .faq-icon::before{left:0;top:7px;width:16px;height:1.6px;}
.accordion .accordion-title .faq-icon::after{left:7px;top:0;width:1.6px;height:16px;}
.accordion .accordion-item.is-active .accordion-title .faq-icon::after{transform:scaleY(0);opacity:0;}
.accordion .accordion-content{padding:0 0 22px;border:0;background:transparent;color:var(--muted);font-size:15.5px;line-height:1.75;}
.accordion .accordion-content p{margin:0;}

/* CTA 带 */
.cta-section{padding-top:var(--gap-section);}
.cta-band{
  background:var(--ink);color:var(--sand);border-radius:var(--r-lg);
  padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;bottom:-60px;width:240px;height:240px;border-radius:50%;
  background:rgba(226,86,43,.16);
}
.cta-band h2{color:var(--sand);font-size:clamp(22px,2.4vw,30px);line-height:1.35;position:relative;z-index:2;}
.cta-band p{margin:12px 0 0;color:rgba(244,239,231,.78);max-width:560px;position:relative;z-index:2;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}

/* 交叉链接 */
.cross-section{padding-top:var(--gap-section);}
.cross-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.cross-card{
  display:block;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px;box-shadow:var(--sh-1);color:var(--text);
  transition:transform .18s ease-out, box-shadow .18s ease-out, border-color .18s ease-out;
}
.cross-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(16,49,46,.2);color:var(--text);}
.cross-card h3{font-size:20px;line-height:1.4;margin:14px 0 10px;}
.cross-card p{margin:0;font-size:15px;color:var(--muted);}
.cross-card .cross-more{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:14px;color:var(--muted);}
.cross-card .cross-more span:last-child{color:var(--accent);font-weight:600;}

/* 页脚 */
.site-footer{background:var(--ink);color:var(--sand);margin-top:var(--gap-section);}
.site-footer .wrap{padding-top:64px;padding-bottom:28px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:0;}
.foot-brand,.foot-col{padding:0 26px;border-right:1px solid rgba(244,239,231,.14);}
.foot-brand{padding-left:0;}
.foot-col:last-child{border-right:0;padding-right:0;}
.foot-logo{display:inline-flex;align-items:center;gap:12px;font-size:17px;font-weight:700;color:var(--sand);}
.foot-brand p{margin:18px 0 0;font-size:14px;line-height:1.75;color:rgba(244,239,231,.72);max-width:320px;}
.foot-col h4{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:rgba(244,239,231,.6);font-weight:600;margin-bottom:18px;}
.foot-col ul{display:flex;flex-direction:column;gap:12px;}
.foot-col a{color:rgba(244,239,231,.86);font-size:14.5px;}
.foot-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.foot-note{font-size:13.5px;line-height:1.7;color:rgba(244,239,231,.62);margin:0 0 16px;}
.foot-form{display:flex;flex-direction:column;gap:10px;}
.foot-form input{
  height:44px;border-radius:var(--r-sm);border:1px solid rgba(244,239,231,.24);
  background:rgba(244,239,231,.06);color:var(--sand);padding:0 14px;font-size:14px;
}
.foot-form input::placeholder{color:rgba(244,239,231,.45);}
.foot-form input:focus{outline:none;border-color:var(--accent);background:rgba(244,239,231,.1);}
.foot-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(244,239,231,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.foot-bottom p{margin:0;font-size:13.5px;color:rgba(244,239,231,.66);}

/* 底部固定转化条 */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:var(--ink);color:var(--sand);
  border-top:1px solid rgba(244,239,231,.14);
  padding-bottom:env(safe-area-inset-bottom);
  transform:translateY(110%);opacity:0;visibility:hidden;
  transition:transform .2s ease-out, opacity .2s ease-out, visibility .2s ease-out;
}
.sticky-bar.is-visible{transform:translateY(0);opacity:1;visibility:visible;}
.sticky-bar.is-closed{display:none;}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:66px;padding-top:10px;padding-bottom:10px;}
.sticky-text{margin:0;font-size:14.5px;color:rgba(244,239,231,.86);}
.sticky-text .sticky-short{display:none;}
.sticky-actions{display:flex;align-items:center;gap:14px;}
.sticky-close{
  width:34px;height:34px;border-radius:50%;border:1px solid rgba(244,239,231,.3);
  background:transparent;display:inline-flex;align-items:center;justify-content:center;
}
.sticky-close:hover{border-color:var(--accent);}
.sticky-close svg{stroke:rgba(244,239,231,.8);}
.sticky-close:hover svg{stroke:var(--accent);}

/* 响应式 */
@media screen and (max-width:1023px){
  :root{--gap-section:72px;}
  .grid-container{padding-left:24px;padding-right:24px;}
  .nav-links{display:none;}
  .header-cta .btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .split-body{margin-top:32px;}
  .split.reverse .split-media{order:1;}
  .split.reverse .split-body{order:2;}
  .steps{grid-template-columns:1fr;}
  .cross-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px 0;}
  .foot-brand{grid-column:1 / -1;padding-right:0;border-right:0;border-bottom:1px solid rgba(244,239,231,.14);padding-bottom:32px;}
  .foot-col{padding:0 26px;}
  .foot-col:nth-child(2){padding-left:0;}
  .foot-col:nth-child(3){border-right:0;padding-right:0;}
  .foot-col:nth-child(4){grid-column:1 / -1;border-right:0;padding:0;margin-top:8px;}
  .banner .wrap{padding-top:56px;padding-bottom:52px;}
}
@media screen and (max-width:767px){
  :root{--gap-section:56px;}
  body{font-size:15.5px;padding-bottom:88px;}
  .wrap,.grid-container{padding-left:16px;padding-right:16px;}
  .stats{grid-template-columns:1fr;}
  .stat{border-right:0;border-bottom:1px solid var(--line);}
  .stat:last-child{border-bottom:0;}
  .cta-band{padding:36px 24px;border-radius:var(--r-md);}
  .faq-panel{padding:4px 18px;}
  .accordion .accordion-title{font-size:16px;padding:18px 0;}
  .split{padding:32px 0;}
  .media-index{left:-8px;top:-8px;width:44px;height:44px;font-size:16px;}
  .lead-grid{padding-left:16px;}
  .foot-grid{grid-template-columns:1fr;gap:32px;}
  .foot-brand,.foot-col{padding:0;border-right:0;}
  .foot-brand{border-bottom:1px solid rgba(244,239,231,.14);padding-bottom:28px;}
  .foot-col{border-bottom:0;}
  .sticky-inner{min-height:60px;gap:14px;}
  .sticky-text{font-size:13.5px;line-height:1.4;}
  .sticky-text .sticky-long{display:none;}
  .sticky-text .sticky-short{display:inline;}
  .site-footer .wrap{padding-top:48px;}
}
@media screen and (max-width:519px){
  .banner h1{font-size:30px;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{width:100%;}
  .header-inner{gap:12px;}
}

/* roulang page: article */
:root{
  --ink:#10312E;
  --ink-2:#17403B;
  --accent:#E2562B;
  --accent-hover:#C8461F;
  --accent-soft:#FBE7DE;
  --jade:#1E6F5C;
  --sand:#F4EFE7;
  --paper:#FFFFFF;
  --line:#E4DCD1;
  --text:#1B1A17;
  --muted:#6B6559;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,49,46,.06),0 8px 24px rgba(16,49,46,.06);
  --sh-2:0 2px 4px rgba(16,49,46,.08),0 16px 40px rgba(16,49,46,.12);
  --maxw:1280px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background:var(--sand);
  padding-bottom:68px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--accent)}
button,input{font-family:inherit;font-size:inherit}
ul,ol{margin:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
p{margin:0 0 1em}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding-left:24px;padding-right:24px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(244,239,231,.94);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:28px;min-height:76px}
.brand{display:inline-flex;align-items:center;gap:11px;font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.01em}
.brand:hover{color:var(--ink)}
.brand-mark{
  position:relative;width:34px;height:34px;flex:0 0 34px;
  border-radius:var(--r-sm);background:var(--ink);color:var(--sand);
  display:flex;align-items:center;justify-content:center;
  font-family:Georgia,"Times New Roman",serif;font-size:18px;line-height:1;
}
.brand-mark::after{content:"";position:absolute;right:6px;bottom:6px;width:6px;height:6px;border-radius:2px;background:var(--accent)}
.nav-main{margin-left:auto}
.nav-links{display:flex;align-items:center;gap:30px;list-style:none;padding:0}
.nav-links a{position:relative;display:inline-block;padding:8px 0;font-size:15px;letter-spacing:.02em;color:var(--text)}
.nav-links a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;background:var(--accent);
  transition:left .2s ease-out,right .2s ease-out;
}
.nav-links a:hover::after,.nav-links a.active::after{left:0;right:0}
.nav-links a.active{color:var(--ink);font-weight:600}
.header-cta{display:inline-flex}
.nav-toggle{
  display:none;width:40px;height:40px;margin-left:auto;
  border:1px solid var(--line);border-radius:var(--r-sm);background:transparent;cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle svg{width:18px;height:18px;stroke:var(--ink);stroke-width:1.5;fill:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:background-color .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);border-color:var(--ink);color:var(--sand)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn:focus-visible,.nav-toggle:focus-visible,.bar-close:focus-visible{outline:3px solid rgba(226,86,43,.35);outline-offset:2px}
.link-cta{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--accent)}
.link-cta svg{width:16px;height:16px;stroke:currentColor;stroke-width:1.6;fill:none;transition:transform .18s ease-out}
.link-cta:hover{color:var(--accent-hover);text-decoration:underline}
.link-cta:hover svg{transform:translateX(4px)}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:100%;max-width:420px;z-index:90;
  background:var(--sand);border-left:1px solid var(--line);
  padding:22px 20px 28px;display:flex;flex-direction:column;
  transform:translateX(105%);transition:transform .24s ease-out;
  visibility:hidden;
}
.mobile-drawer.is-open{transform:translateX(0);visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line)}
.drawer-close{width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center}
.drawer-close svg{width:16px;height:16px;stroke:var(--ink);stroke-width:1.5;fill:none}
.drawer-links{list-style:none;padding:0;margin:8px 0 0}
.drawer-links li{border-bottom:1px solid var(--line)}
.drawer-links a{display:block;font-size:18px;line-height:56px;color:var(--text)}
.drawer-links a:hover,.drawer-links a.active{color:var(--accent)}
.drawer-foot{margin-top:auto;padding-top:24px}
.drawer-cta{width:100%}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding-top:26px;font-size:13px;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--muted);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.article-head{padding:18px 0 40px;border-bottom:1px solid var(--line)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.12em;color:var(--muted);text-transform:uppercase}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent)}
.article-head h1{
  margin:16px 0 22px;max-width:880px;
  font-size:clamp(24px,3.4vw,34px);line-height:1.35;letter-spacing:-.01em;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--muted)}
.meta-row .sep{width:1px;height:12px;background:var(--line)}
.meta-row .num{font-family:Georgia,"Times New Roman",serif;letter-spacing:.04em}
.tag{display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);font-size:12px;letter-spacing:.08em;background:var(--accent-soft);color:var(--accent-hover)}
.tag-jade{background:rgba(30,111,92,.1);color:var(--jade)}
.lede{
  margin:26px 0 0;padding-left:18px;border-left:3px solid var(--accent);
  max-width:820px;font-size:17px;line-height:1.85;color:var(--muted);
}

/* ---------- 主栅格 ---------- */
.article-main{padding:56px 0 72px}
.article-grid{margin:0;gap:56px;align-items:flex-start}
.article-grid>.article-col-main{flex:0 0 auto;width:calc(66.666% - 28px);max-width:calc(66.666% - 28px)}
.article-grid>.article-col-side{flex:0 0 auto;width:calc(33.333% - 28px);max-width:calc(33.333% - 28px)}

/* ---------- 正文 ---------- */
.article-body{max-width:740px;font-size:16px;line-height:1.8;color:var(--text);overflow-wrap:break-word}
.article-body>*:first-child{margin-top:0}
.article-body h2{font-size:clamp(21px,2.4vw,27px);line-height:1.35;margin:40px 0 16px;padding-top:4px}
.article-body h3{font-size:20px;line-height:1.4;margin:32px 0 12px;font-weight:600}
.article-body h4{font-size:17px;margin:26px 0 10px;font-weight:600}
.article-body p{margin:0 0 1em}
.article-body a{color:var(--accent);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.article-body a:hover{color:var(--accent-hover)}
.article-body ul,.article-body ol{padding-left:1.2em;margin:0 0 1.2em}
.article-body li{margin-bottom:8px}
.article-body strong{color:var(--ink)}
.article-body blockquote{
  margin:24px 0;padding:20px 22px;background:var(--sand);
  border-left:3px solid var(--accent);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:24px auto}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.article-body table{
  width:100%;display:block;overflow-x:auto;border-collapse:collapse;font-size:15px;margin:24px 0;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body th{background:var(--sand);color:var(--ink)}
.article-body code{background:var(--sand);padding:2px 6px;border-radius:6px;font-size:14px}
.article-empty{
  border:1px solid var(--line);border-radius:var(--r-md);background:var(--paper);
  padding:40px 32px;box-shadow:var(--sh-1);text-align:center;max-width:640px;
}
.article-empty .empty-title{font-size:22px;font-weight:700;color:var(--ink);margin-bottom:10px}
.article-empty p{color:var(--muted);font-size:15px}
.article-empty .btn{margin-top:12px}

/* ---------- 尾部：标签 / 推荐 / 返回 ---------- */
.article-tail{border-top:1px solid var(--line);padding:40px 0 8px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:34px}
.tag-row .label{font-size:13px;letter-spacing:.1em;color:var(--muted);margin-right:4px}
.tail-title{font-size:clamp(20px,2.2vw,24px);margin-bottom:22px}
.reco-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.reco-card{
  display:flex;flex-direction:column;background:var(--paper);
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.reco-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:rgba(16,49,46,.2)}
.reco-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--sand)}
.reco-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.reco-body h3{font-size:18px;line-height:1.45;margin:12px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.reco-body p{font-size:14px;color:var(--muted);margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.reco-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}
.reco-foot svg{width:15px;height:15px;stroke:var(--accent);stroke-width:1.6;fill:none;transition:transform .18s ease-out}
.reco-card:hover .reco-foot svg{transform:translateX(4px)}
.back-row{display:flex;gap:16px;margin-top:40px}
.back-row .btn{flex:1 1 0}

/* ---------- 侧栏 ---------- */
.side-sticky{position:sticky;top:104px}
.side-block{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 24px;box-shadow:var(--sh-1);margin-bottom:24px;
}
.side-block h2{font-size:14px;font-weight:600;letter-spacing:.1em;color:var(--muted);margin-bottom:14px}
.toc-list{list-style:none;padding:0;font-size:15px}
.toc-list li{position:relative;padding-left:16px;margin-bottom:10px}
.toc-list li:last-child{margin-bottom:0}
.toc-list li::before{content:"";position:absolute;left:0;top:.68em;width:6px;height:6px;border-radius:50%;background:var(--line)}
.toc-list li.is-current::before{background:var(--accent)}
.toc-list a{color:var(--text)}
.toc-list a:hover{color:var(--accent)}
.side-links{list-style:none;padding:0;font-size:15px}
.side-links li{padding:11px 0;border-bottom:1px solid var(--line)}
.side-links li:last-child{border-bottom:0;padding-bottom:0}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;color:var(--text)}
.side-links a:hover{color:var(--accent)}
.side-links .idx{font-family:Georgia,"Times New Roman",serif;font-size:13px;color:var(--muted)}
.side-cta{
  border-radius:var(--r-md);padding:28px 24px;color:var(--sand);
  background-image:linear-gradient(rgba(16,49,46,.93),rgba(16,49,46,.93)),url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
}
.side-cta h2{color:var(--sand);font-size:19px;font-weight:700;letter-spacing:0;margin-bottom:10px}
.side-cta p{font-size:14px;line-height:1.75;color:rgba(244,239,231,.78);margin-bottom:18px}
.side-cta .btn{width:100%}

/* ---------- 底部固定条 ---------- */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:var(--ink);color:var(--sand);
  padding-bottom:env(safe-area-inset-bottom);
  opacity:0;visibility:hidden;transform:translateY(100%);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
}
.bottom-bar.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.bottom-inner{display:flex;align-items:center;gap:20px;min-height:64px;padding-top:10px;padding-bottom:10px}
.bottom-inner p{margin:0;flex:1;font-size:14px;color:rgba(244,239,231,.85)}
.bar-close{
  width:30px;height:30px;flex:0 0 30px;border-radius:50%;border:1px solid rgba(244,239,231,.24);
  background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;
}
.bar-close svg{width:12px;height:12px;stroke:rgba(244,239,231,.8);stroke-width:1.6;fill:none}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--sand);padding-top:72px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr .9fr .9fr 1.4fr;gap:40px;padding-bottom:48px}
.foot-brand p{font-size:14px;line-height:1.8;color:rgba(244,239,231,.66);margin:14px 0 0;max-width:320px}
.foot-logo{display:inline-flex;align-items:center;gap:11px;font-size:17px;font-weight:700;color:var(--sand)}
.foot-col h4{font-size:13px;font-weight:600;letter-spacing:.12em;color:rgba(244,239,231,.6);margin-bottom:16px}
.foot-col ul{list-style:none;padding:0}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:14px;color:rgba(244,239,231,.86)}
.foot-col a:hover{color:var(--accent)}
.foot-note{font-size:13px;line-height:1.75;color:rgba(244,239,231,.6);margin-bottom:12px}
.foot-form{display:flex;gap:10px;flex-wrap:wrap}
.foot-form input{
  flex:1 1 150px;height:48px;padding:0 14px;border-radius:10px;
  border:1px solid rgba(244,239,231,.2);background:rgba(244,239,231,.06);color:var(--sand);font-size:14px;
  transition:border-color .18s ease-out,background-color .18s ease-out;
}
.foot-form input::placeholder{color:rgba(244,239,231,.45)}
.foot-form input:focus{outline:none;border-color:var(--accent);background:rgba(244,239,231,.12)}
.foot-bottom{
  border-top:1px solid rgba(244,239,231,.14);padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(244,239,231,.6);
}
.foot-bottom p{margin:0}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .nav-main,.header-cta{display:none}
  .nav-toggle{display:flex}
  .article-grid>.article-col-main,
  .article-grid>.article-col-side{width:100%;max-width:100%}
  .article-grid{gap:0}
  .article-col-side{margin-top:48px;padding-top:40px;border-top:1px solid var(--line)}
  .side-sticky{position:static}
  .reco-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media screen and (max-width:767px){
  .wrap{padding-left:16px;padding-right:16px}
  .article-head{padding:14px 0 30px}
  .lede{font-size:16px;padding-left:14px}
  .article-main{padding:40px 0 56px}
  .article-body{font-size:16px}
  .article-body h2{margin-top:32px}
  .reco-grid{grid-template-columns:1fr;gap:16px}
  .reco-card:hover{transform:none}
  .back-row{flex-direction:column}
  .bottom-inner p{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .foot-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px}
  .site-footer{padding-top:52px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media screen and (max-width:479px){
  .article-head h1{font-size:24px}
  .bottom-inner{gap:12px}
  .bottom-inner .btn{padding:9px 16px;font-size:13px}
}

/* roulang page: category2 */
:root{
  --ink:#10312E;
  --ink-2:#17403B;
  --accent:#E2562B;
  --accent-hover:#C8461F;
  --accent-soft:#FBE7DE;
  --sand:#F4EFE7;
  --paper:#FFFFFF;
  --line:#E4DCD1;
  --text:#1B1A17;
  --muted:#6B6559;
  --jade:#1E6F5C;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,49,46,.06), 0 8px 24px rgba(16,49,46,.06);
  --sh-2:0 2px 4px rgba(16,49,46,.08), 0 16px 40px rgba(16,49,46,.12);
  --max:1280px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  padding-bottom:76px;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background:var(--sand);
  font-weight:400;
}

img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;background-color:transparent;}
button{font:inherit;color:inherit;background:none;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
input{font:inherit;}

a:focus-visible,
button:focus-visible,
input:focus-visible{
  outline:3px solid rgba(226,86,43,.35);
  outline-offset:2px;
  border-radius:6px;
}

.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

.wrap{
  width:100%;
  max-width:var(--max);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 栅格微调 ---------- */
.grid-x.grid-margin-x{margin-left:-14px;margin-right:-14px;}
.grid-x.grid-margin-x > .cell{padding-left:14px;padding-right:14px;}
.grid-x.grid-margin-y{margin-top:-14px;margin-bottom:-14px;}
.grid-x.grid-margin-y > .cell{padding-top:14px;padding-bottom:14px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--r-pill);
  font-size:15.5px;
  font-weight:600;
  letter-spacing:.01em;
  line-height:1.2;
  cursor:pointer;
  border:1px solid transparent;
  transition:background-color .18s var(--ease), color .18s var(--ease),
             border-color .18s var(--ease), box-shadow .18s var(--ease),
             transform .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:0 1px 2px rgba(16,49,46,.08), 0 8px 20px rgba(226,86,43,.22);
}
.btn-primary:hover{
  background:var(--accent-hover);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 2px 4px rgba(16,49,46,.10), 0 16px 34px rgba(226,86,43,.30);
}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--ink);
}
.btn-ghost:hover{
  background:var(--ink);
  border-color:var(--ink);
  color:var(--sand);
  transform:translateY(-1px);
}
.btn-sm{padding:10px 20px;font-size:14.5px;}
.btn-wide{width:100%;}

.link-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--accent);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
}
.link-cta .arw{transition:transform .18s var(--ease);}
.link-cta:hover{text-decoration:underline;text-underline-offset:5px;}
.link-cta:hover .arw{transform:translateX(4px);}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(244,239,231,.94);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:76px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  font-size:17px;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--ink);
  flex:0 0 auto;
}
.brand-mark{
  position:relative;
  width:34px;
  height:34px;
  border-radius:var(--r-sm);
  background:var(--ink);
  color:var(--sand);
  display:grid;
  place-items:center;
  font-size:17px;
  font-weight:700;
  font-family:Georgia,"Times New Roman",serif;
  flex:0 0 auto;
}
.brand-mark::after{
  content:"";
  position:absolute;
  right:5px;
  bottom:5px;
  width:6px;
  height:6px;
  border-radius:2px;
  background:var(--accent);
}
.brand-text{white-space:nowrap;}

.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:9px 15px;
  font-size:15px;
  letter-spacing:.02em;
  color:var(--text);
  transition:color .18s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:15px;
  right:15px;
  bottom:3px;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .2s var(--ease);
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after,
.nav-links a:focus-visible::after{transform:scaleX(1);}
.nav-links a.active{color:var(--ink);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);}

.header-cta{flex:0 0 auto;}

.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:10px;
  place-items:center;
  cursor:pointer;
  background:var(--paper);
  transition:border-color .18s var(--ease),background-color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--ink);}
.nav-toggle svg{width:20px;height:20px;stroke:var(--ink);stroke-width:1.5;fill:none;}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:120;
  background:var(--sand);
  display:none;
  flex-direction:column;
  padding:20px 24px calc(28px + env(safe-area-inset-bottom));
}
.drawer.open{display:flex;}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-bottom:1px solid var(--line);
  padding-bottom:16px;
}
.drawer-close{
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--paper);
  cursor:pointer;
  display:grid;
  place-items:center;
  font-size:22px;
  line-height:1;
  color:var(--ink);
}
.drawer-links{margin-top:24px;flex:1 1 auto;}
.drawer-links a{
  display:block;
  padding:18px 0;
  font-size:18px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
  letter-spacing:.02em;
}
.drawer-links a.active{color:var(--accent);font-weight:600;}
.drawer-cta{margin-top:24px;}

/* ---------- 页面横幅 ---------- */
.page-banner{
  position:relative;
  background:var(--ink);
  overflow:hidden;
  display:flex;
  align-items:flex-end;
}
.page-banner .banner-img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.4;
}
.page-banner .banner-mask{
  position:absolute;
  inset:0;
  background:rgba(16,49,46,.74);
}
.page-banner .wrap{
  position:relative;
  z-index:3;
  padding-top:76px;
  padding-bottom:56px;
}

.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  font-size:13px;
  color:rgba(244,239,231,.66);
  margin-bottom:20px;
}
.crumbs a{color:rgba(244,239,231,.86);transition:color .18s var(--ease);}
.crumbs a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.crumbs .sep{opacity:.45;}
.crumbs .current{color:rgba(244,239,231,.6);}

.page-banner h1{
  font-size:clamp(30px,4.6vw,50px);
  line-height:1.2;
  letter-spacing:-.02em;
  font-weight:700;
  color:#fff;
  max-width:22em;
}
.banner-lead{
  margin-top:20px;
  max-width:760px;
  font-size:16.5px;
  line-height:1.8;
  color:rgba(244,239,231,.88);
}
.banner-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
  padding-top:22px;
  border-top:1px solid rgba(244,239,231,.16);
}
.banner-tags span{
  font-size:12.5px;
  letter-spacing:.1em;
  color:rgba(244,239,231,.82);
  padding:6px 14px;
  border:1px solid rgba(244,239,231,.24);
  border-radius:var(--r-pill);
}

/* ---------- 通用板块 ---------- */
.section{padding:86px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:#EFE8DD;}

.section-head{max-width:780px;margin-bottom:48px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  letter-spacing:.14em;
  color:var(--jade);
  font-weight:600;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:18px;
  height:1px;
  background:var(--jade);
  display:inline-block;
}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  line-height:1.3;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-.01em;
}
.section-head p{
  margin-top:14px;
  color:var(--muted);
  font-size:16px;
  max-width:720px;
}

/* ---------- 时间线 ---------- */
.timeline{position:relative;}
.timeline::before{
  content:"";
  position:absolute;
  left:19px;
  top:14px;
  bottom:14px;
  width:1px;
  background:var(--line);
}
.tl-item{
  position:relative;
  padding-left:66px;
  padding-bottom:52px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-num{
  position:absolute;
  left:0;
  top:0;
  width:39px;
  height:39px;
  border-radius:50%;
  background:var(--paper);
  border:1px solid var(--line);
  color:var(--accent);
  display:grid;
  place-items:center;
  font-family:Georgia,"Times New Roman",serif;
  font-size:13.5px;
  font-weight:700;
  letter-spacing:.04em;
  box-shadow:var(--sh-1);
}
.tl-item h3{
  font-size:21px;
  line-height:1.4;
  font-weight:600;
  color:var(--ink);
  margin:5px 0 10px;
}
.tl-item p{
  margin-bottom:14px;
  color:var(--muted);
  max-width:740px;
}
.tl-meta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--jade);
  margin-bottom:6px;
}

/* ---------- 要点列表 ---------- */
.points{border-top:1px solid var(--line);}
.points li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
  font-size:15.5px;
  color:var(--text);
}
.points li::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--accent);
  margin-top:12px;
  flex:0 0 auto;
}
.points li strong{font-weight:600;color:var(--ink);}

.figure-card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.figure-card:hover{
  border-color:rgba(16,49,46,.22);
  box-shadow:var(--sh-2);
  transform:translateY(-2px);
}
.figure-card img{
  width:100%;
  aspect-ratio:3 / 2;
  object-fit:cover;
}
.figure-cap{
  padding:18px 22px;
  border-top:1px solid var(--line);
  font-size:13.5px;
  color:var(--muted);
}

/* ---------- 数据条 ---------- */
.stat-row{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:8px 0;
}
.stat{padding:20px 0;}
.stat-num{
  display:block;
  font-family:Georgia,"Times New Roman",serif;
  font-size:34px;
  line-height:1.1;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-.01em;
}
.stat-label{
  display:block;
  margin-top:6px;
  font-size:13px;
  color:var(--muted);
  letter-spacing:.02em;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:940px;}
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:21px 0;
  text-align:left;
  font-size:17.5px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--accent);}
.faq-plus{
  position:relative;
  width:18px;
  height:18px;
  flex:0 0 auto;
}
.faq-plus::before,
.faq-plus::after{
  content:"";
  position:absolute;
  background:var(--accent);
  border-radius:2px;
  transition:transform .2s var(--ease);
}
.faq-plus::before{left:0;top:8px;width:18px;height:2px;}
.faq-plus::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.open .faq-plus::after{transform:scaleY(0);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a p{
  padding:0 40px 22px 0;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.78;
  max-width:800px;
}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--ink);
  border-radius:var(--r-lg);
  padding:52px 48px;
  color:var(--sand);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
}
.cta-band h2{
  font-size:clamp(22px,2.4vw,30px);
  line-height:1.32;
  font-weight:700;
  color:#fff;
  letter-spacing:-.01em;
  max-width:20em;
}
.cta-band p{
  margin-top:12px;
  color:rgba(244,239,231,.78);
  font-size:15.5px;
  max-width:560px;
}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-ghost{
  border-color:rgba(244,239,231,.36);
  color:var(--sand);
}
.cta-band .btn-ghost:hover{
  background:var(--sand);
  border-color:var(--sand);
  color:var(--ink);
}

/* ---------- 交叉链接 ---------- */
.cross-links{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.cross-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 28px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.cross-card:hover{
  border-color:rgba(16,49,46,.22);
  box-shadow:var(--sh-2);
  transform:translateY(-2px);
}
.cross-card .cc-label{
  font-size:12.5px;
  letter-spacing:.12em;
  color:var(--jade);
  margin-bottom:6px;
}
.cross-card h3{font-size:19px;font-weight:600;color:var(--ink);}
.cross-card .cc-arrow{
  font-size:20px;
  color:var(--accent);
  transition:transform .2s var(--ease);
}
.cross-card:hover .cc-arrow{transform:translateX(5px);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  background:var(--ink);
  color:var(--sand);
  padding-top:64px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-bottom:48px;
}
.foot-grid > div + div{
  border-left:1px solid rgba(244,239,231,.14);
  padding-left:40px;
}
.foot-logo{
  display:inline-flex;
  align-items:center;
  gap:11px;
  font-size:17px;
  font-weight:700;
  color:#fff;
}
.foot-brand p{
  margin-top:16px;
  font-size:14.5px;
  line-height:1.75;
  color:rgba(244,239,231,.72);
  max-width:360px;
}
.foot-col h4{
  font-size:14px;
  font-weight:600;
  letter-spacing:.06em;
  color:rgba(244,239,231,.94);
  margin-bottom:16px;
}
.foot-col ul li{margin-bottom:10px;}
.foot-col ul a{
  font-size:14.5px;
  color:rgba(244,239,231,.72);
  transition:color .18s var(--ease);
}
.foot-col ul a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.foot-note{
  font-size:13.5px;
  line-height:1.7;
  color:rgba(244,239,231,.62);
}
.foot-form{
  display:flex;
  gap:10px;
  margin-top:16px;
  flex-wrap:wrap;
}
.foot-form input{
  flex:1 1 160px;
  min-width:0;
  height:48px;
  padding:0 14px;
  border-radius:10px;
  border:1px solid rgba(244,239,231,.24);
  background:rgba(244,239,231,.06);
  color:var(--sand);
  font-size:14.5px;
  transition:border-color .18s var(--ease),background-color .18s var(--ease);
}
.foot-form input::placeholder{color:rgba(244,239,231,.5);}
.foot-form input:focus{
  outline:none;
  border-color:var(--accent);
  background:rgba(244,239,231,.12);
}
.foot-bottom{
  border-top:1px solid rgba(244,239,231,.14);
  padding:22px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.foot-bottom p{font-size:13.5px;color:rgba(244,239,231,.66);}

/* ---------- 底部固定转化条 ---------- */
.sticky-bar{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:90;
  background:var(--ink);
  color:var(--sand);
  transform:translateY(115%);
  transition:transform .24s var(--ease);
  padding-bottom:env(safe-area-inset-bottom);
}
.sticky-bar.show{transform:translateY(0);}
.sticky-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:64px;
  padding-top:10px;
  padding-bottom:10px;
}
.sticky-inner p{
  font-size:14.5px;
  color:rgba(244,239,231,.86);
  letter-spacing:.01em;
}
.sticky-actions{display:flex;align-items:center;gap:12px;}
.sticky-close{
  width:32px;
  height:32px;
  border-radius:50%;
  border:1px solid rgba(244,239,231,.28);
  color:rgba(244,239,231,.72);
  cursor:pointer;
  display:grid;
  place-items:center;
  font-size:16px;
  line-height:1;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.sticky-close:hover{border-color:var(--sand);color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-links{display:none;}
  .header-cta{display:none;}
  .nav-toggle{display:grid;}
  .page-banner .wrap{padding-top:56px;padding-bottom:44px;}
  .section{padding:64px 0;}
  .section-tight{padding:52px 0;}
  .section-head{margin-bottom:36px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .foot-grid > div + div{border-left:0;padding-left:0;}
  .foot-grid > div:nth-child(even){border-left:1px solid rgba(244,239,231,.14);padding-left:32px;}
  .cta-band{padding:40px 32px;}
}

@media (max-width:767px){
  .wrap{padding:0 16px;}
  .grid-x.grid-margin-x{margin-left:-8px;margin-right:-8px;}
  .grid-x.grid-margin-x > .cell{padding-left:8px;padding-right:8px;}
  .grid-x.grid-margin-y{margin-top:-10px;margin-bottom:-10px;}
  .grid-x.grid-margin-y > .cell{padding-top:10px;padding-bottom:10px;}
  .header-inner{height:66px;}
  .brand{font-size:16px;}
  .section{padding:52px 0;}
  .section-tight{padding:44px 0;}
  .timeline::before{left:15px;}
  .tl-num{width:31px;height:31px;font-size:12px;}
  .tl-item{padding-left:50px;padding-bottom:40px;}
  .tl-item h3{font-size:19px;}
  .cross-links{grid-template-columns:1fr;}
  .cross-card{padding:22px 20px;}
  .cta-band{padding:34px 24px;border-radius:var(--r-md);}
  .cta-band .btn{flex:1 1 100%;}
  .cta-actions{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:32px;}
  .foot-grid > div:nth-child(even){border-left:0;padding-left:0;}
  .site-footer{margin-top:64px;padding-top:48px;}
  .sticky-inner p{font-size:13.5px;}
  .figure-card:hover{transform:none;}
  body{padding-bottom:84px;}
}

@media (max-width:520px){
  .page-banner h1{font-size:29px;}
  .banner-lead{font-size:15.5px;}
  .faq-q{font-size:16.5px;}
  .sticky-inner{gap:12px;}
  .sticky-inner p{display:none;}
  .sticky-actions{width:100%;justify-content:space-between;}
  .sticky-inner{padding-top:12px;padding-bottom:12px;}
}