/* roulang page: index */
:root{
  --ink:#0F1512;
  --graphite:#5F6663;
  --paper:#F4F1EA;
  --card:#FBFAF7;
  --zebra:#F7F4EE;
  --accent:#E4552B;
  --green:#1F5B49;
  --line:rgba(15,21,18,.10);
  --line-strong:rgba(15,21,18,.20);
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 1px 2px rgba(15,21,18,.05);
  --shadow-hover:0 14px 32px -14px rgba(15,21,18,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
button{font-family:inherit;font-size:inherit;border:0;background:none;color:inherit;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
::selection{background:rgba(228,85,43,.18)}

/* ---------- 布局基础 ---------- */
.grid-container{
  max-width:1240px;
  padding-left:32px;
  padding-right:32px;
}
.section{padding:100px 0;position:relative}
.section--tight{padding:76px 0}
.section--paper{background:var(--paper)}
.section--white{background:var(--card)}
.section--zebra{background:var(--zebra)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  letter-spacing:.16em;
  color:var(--accent);
  margin-bottom:14px;
}
.section-title{
  font-size:clamp(24px,3vw,38px);
  font-weight:700;
  line-height:1.25;
  letter-spacing:-.02em;
  color:var(--ink);
}
.section-desc{margin-top:16px;color:var(--graphite);font-size:16px;line-height:1.85}
.card-grid{row-gap:24px}

/* ---------- 按钮 ---------- */
.ui-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  line-height:1.2;
  white-space:nowrap;
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease),filter .24s var(--ease);
}
.ui-btn--primary{
  background:var(--accent);
  color:#fff;
  box-shadow:0 10px 24px -16px rgba(228,85,43,.95);
}
.ui-btn--primary:hover{filter:brightness(.92);transform:translateY(-1px);box-shadow:0 18px 30px -18px rgba(228,85,43,.9)}
.ui-btn--primary:active{transform:translateY(0);filter:brightness(.86)}
.ui-btn--ghost{
  background:transparent;
  color:var(--ink);
  border:1px solid rgba(15,21,18,.55);
}
.ui-btn--ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);transform:translateY(-1px)}
.ui-btn--light{background:var(--paper);color:var(--ink)}
.ui-btn--light:hover{background:#fff;transform:translateY(-1px)}
.ui-btn--sm{padding:10px 20px;font-size:14px}
.ui-btn--block{width:100%}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  border-bottom:1px solid rgba(15,21,18,.35);
  padding-bottom:2px;
  transition:color .22s var(--ease),border-color .22s var(--ease);
}
.text-link:hover{color:var(--accent);border-color:var(--accent)}

/* ---------- 徽章 / 标签 ---------- */
.ui-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  line-height:1.6;
  background:rgba(15,21,18,.06);
  color:var(--graphite);
}
.ui-badge--accent{background:rgba(228,85,43,.12);color:#B23F1C}
.ui-badge--green{background:rgba(31,91,73,.12);color:var(--green)}
.ui-tag{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--graphite);
  border:1px solid var(--line);
  background:var(--card);
}

/* ---------- 卡片 ---------- */
.ui-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:24px;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.ui-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:200;
  height:76px;
  background:rgba(244,241,234,.55);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(15,21,18,.10);
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-stuck{
  background:rgba(244,241,234,.94);
  border-bottom-color:rgba(15,21,18,.14);
  box-shadow:0 10px 30px -24px rgba(15,21,18,.9);
}
.nav-inner{
  height:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  display:inline-grid;
  grid-template-columns:repeat(2,8px);
  grid-template-rows:repeat(2,8px);
  gap:3px;
  width:20px;height:20px;
}
.brand-mark i{display:block;border-radius:3px;background:var(--ink)}
.brand-mark i:nth-child(1){background:var(--accent)}
.brand-mark i:nth-child(3){background:rgba(15,21,18,.35)}
.brand-text{
  display:flex;
  flex-direction:column;
  font-size:14px;
  font-weight:800;
  line-height:1.15;
  letter-spacing:.02em;
  color:var(--ink);
}
.brand-text span:last-child{color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  padding:6px 0;
  color:var(--ink);
  transition:color .22s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .26s var(--ease);
}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{font-weight:700}
.nav-link.is-active::after{transform:scaleX(1);background:var(--ink)}
.nav-actions{display:flex;align-items:center;gap:14px}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid rgba(15,21,18,.18);
  color:var(--ink);
  background:rgba(255,255,255,.35);
  transition:background .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
}
.icon-btn:hover{background:#fff;border-color:var(--line-strong);transform:translateY(-1px)}
.icon-btn svg{width:18px;height:18px;display:block}
.nav-cta{padding:12px 24px;font-size:14px}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid rgba(15,21,18,.16);
  background:rgba(255,255,255,.4);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 移动端抽屉 */
.drawer{
  position:fixed;
  inset:0;
  z-index:400;
  display:none;
  background:rgba(244,241,234,.97);
  -webkit-backdrop-filter:blur(20px);
  backdrop-filter:blur(20px);
}
.drawer.is-open{display:flex;flex-direction:column}
.drawer-head{
  height:64px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 20px;
  border-bottom:1px solid var(--line);
}
.drawer-close{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid rgba(15,21,18,.16);
  font-size:20px;line-height:1;
}
.drawer-nav{padding:24px 20px;display:flex;flex-direction:column;gap:18px}
.drawer-nav a{font-size:18px;font-weight:600;padding:6px 0;border-bottom:1px solid var(--line)}
.drawer-nav a.is-active{color:var(--accent)}
.drawer-foot{margin-top:auto;padding:24px 20px 40px}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:150px 0 96px;
  background:linear-gradient(180deg,#F4F1EA 0%,#F7F4EE 100%);
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;
  background-position:center;
  opacity:.10;
  pointer-events:none;
}
.hero .grid-container{position:relative;z-index:1}
.hero-copy{max-width:620px}
.hero h1{
  font-size:clamp(34px,5.2vw,64px);
  font-weight:800;
  line-height:1.12;
  letter-spacing:-.025em;
  color:var(--ink);
}
.hero-sub{
  margin-top:24px;
  font-size:19px;
  line-height:1.8;
  color:var(--graphite);
  max-width:34em;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  margin-top:40px;
  font-size:13px;
  color:var(--graphite);
}
.hero-meta span{display:inline-flex;align-items:center;gap:8px;padding:0 18px;border-left:1px solid var(--line-strong)}
.hero-meta span:first-child{padding-left:0;border-left:0}
.dot{width:7px;height:7px;border-radius:50%;background:var(--green);display:inline-block}
.dot--accent{background:var(--accent)}
.hero-media{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:0 24px 48px -30px rgba(15,21,18,.55);
}
.hero-media img{width:100%;height:auto;aspect-ratio:4/3.3;object-fit:cover;background:var(--zebra)}
.hero-media::after{content:"";position:absolute;inset:0;background:rgba(15,21,18,.06);pointer-events:none}
.hero-media__tag{
  position:absolute;
  left:18px;bottom:18px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:999px;
  background:rgba(251,250,247,.92);
  font-size:13px;
  font-weight:600;
  color:var(--ink);
  box-shadow:var(--shadow);
}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
}
.stat-item{background:var(--card);padding:28px 24px}
.stat-num{
  font-size:32px;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.stat-num em{font-style:normal;font-size:16px;font-weight:600;color:var(--graphite);margin-left:4px}
.stat-label{font-size:13px;color:var(--graphite);margin-top:6px;letter-spacing:.02em}

/* ---------- 权益对比表 ---------- */
.plan-wrap{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--card);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.plan-table{display:block}
.plan-row{
  display:flex;
  min-height:56px;
  border-bottom:1px solid var(--line);
}
.plan-row:last-child{border-bottom:0}
.plan-row:nth-child(even){background:var(--zebra)}
.plan-row--head{background:var(--ink)!important;color:var(--paper);min-height:72px}
.plan-row--head .plan-cell{color:var(--paper);font-weight:700;font-size:15px}
.plan-cell{
  flex:1;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  padding:0 16px;
  font-size:15px;
  text-align:center;
  border-left:1px solid var(--line);
}
.plan-cell:first-child{border-left:0}
.plan-row--head .plan-cell{border-left-color:rgba(255,255,255,.14)}
.plan-cell--label{
  flex:1.5;
  justify-content:flex-start;
  text-align:left;
  font-weight:600;
  color:var(--ink);
  padding-left:24px;
}
.plan-row--head .plan-cell--label{color:var(--paper)}
.plan-row--head .plan-cell--rec{position:relative}
.plan-cell:nth-child(4){
  background:rgba(228,85,43,.06);
  box-shadow:inset 1px 0 0 rgba(228,85,43,.55),inset -1px 0 0 rgba(228,85,43,.55);
}
.plan-row--head .plan-cell:nth-child(4){
  background:rgba(228,85,43,.22);
  box-shadow:inset 1px 0 0 var(--accent),inset -1px 0 0 var(--accent);
}
.plan-row:last-child .plan-cell:nth-child(4){box-shadow:inset 1px 0 0 rgba(228,85,43,.55),inset -1px 0 0 rgba(228,85,43,.55),inset 0 -1px 0 rgba(228,85,43,.55)}
.rec-badge{
  position:absolute;
  top:-12px;left:50%;
  transform:translateX(-50%);
  background:var(--accent);
  color:#fff;
  font-size:12px;
  font-weight:700;
  letter-spacing:.06em;
  padding:3px 12px;
  border-radius:999px;
  white-space:nowrap;
}
.mark-yes{color:var(--green);font-weight:700}
.mark-no{color:rgba(15,21,18,.28);font-weight:700}
.plan-note{margin-top:18px;font-size:13px;color:var(--graphite)}

/* 移动端档位卡片 */
.plan-cards{display:none}
.plan-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  margin-bottom:18px;
}
.plan-card--rec{border:1px solid rgba(228,85,43,.7);box-shadow:0 14px 30px -22px rgba(228,85,43,.8)}
.plan-card h3{font-size:19px;font-weight:700;display:flex;align-items:center;gap:10px}
.plan-card__sub{font-size:13px;color:var(--graphite);margin-top:6px}
.plan-card ul{margin-top:18px}
.plan-card li{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  min-height:44px;
  border-bottom:1px solid var(--line);
  font-size:14px;
}
.plan-card li:last-child{border-bottom:0}

/* ---------- 等级亮点 ---------- */
.level-card{
  position:relative;
  height:100%;
  padding:32px 28px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--card);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.level-card:nth-child(even){background:var(--zebra)}
.level-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.level-num{
  font-size:44px;
  font-weight:800;
  line-height:1;
  letter-spacing:-.03em;
  color:rgba(15,21,18,.14);
  font-variant-numeric:tabular-nums;
}
.level-card h3{margin-top:14px;font-size:21px;font-weight:700}
.level-card p{margin-top:10px;font-size:14px;color:var(--graphite);line-height:1.8}
.level-bar{
  margin-top:22px;
  height:4px;
  border-radius:999px;
  background:rgba(15,21,18,.08);
  overflow:hidden;
}
.level-bar span{display:block;height:100%;background:var(--accent);border-radius:999px}
.level-card:nth-child(2) .level-bar span{background:var(--green)}
.level-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:14px;
  font-size:13px;
  color:var(--graphite);
}

/* ---------- 分类入口 ---------- */
.channel-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.channel-card__media{position:relative;overflow:hidden;background:var(--zebra)}
.channel-card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease)}
.channel-card:hover .channel-card__media img{transform:scale(1.03)}
.channel-card__body{padding:22px 22px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.channel-card__body h3{font-size:19px;font-weight:700}
.channel-card__body p{font-size:14px;color:var(--graphite);line-height:1.8;flex:1}
.channel-card__more{font-size:14px;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:6px}

/* ---------- 内容预览 ---------- */
.story-card{
  position:relative;
  display:block;
  height:100%;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--card);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.story-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.story-card__media{overflow:hidden;background:var(--zebra);position:relative}
.story-card__media img{width:100%;object-fit:cover;transition:transform .4s var(--ease)}
.story-card--lg .story-card__media img{aspect-ratio:16/10}
.story-card--sm .story-card__media img{aspect-ratio:4/3}
.story-card--wide .story-card__media img{aspect-ratio:16/9}
.story-card:hover .story-card__media img{transform:scale(1.03)}
.story-card__body{padding:20px 22px 24px}
.story-card__body h3{font-size:17px;font-weight:700;line-height:1.5;margin-top:10px}
.story-card__body p{margin-top:8px;font-size:14px;color:var(--graphite);line-height:1.75}
.story-stack{display:flex;flex-direction:column;gap:24px;height:100%}
.story-stack .story-card{flex:1}

/* ---------- CMS 资讯区 ---------- */
.news-lead{
  display:flex;
  flex-direction:column;
  height:100%;
  overflow:hidden;
  padding:0;
}
.news-lead__media{overflow:hidden;background:var(--zebra)}
.news-lead__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease)}
.news-lead:hover .news-lead__media img{transform:scale(1.03)}
.news-lead__body{padding:26px 26px 30px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-lead__body h3{font-size:22px;font-weight:700;line-height:1.45}
.news-lead__body h3 a:hover{color:var(--accent)}
.news-lead__body p{font-size:15px;color:var(--graphite);line-height:1.85;flex:1}
.news-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--graphite)}
.news-list{border-top:1px solid var(--line)}
.news-item{border-bottom:1px solid var(--line);transition:background .24s var(--ease)}
.news-item:hover{background:var(--zebra)}
.news-item a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:72px;
  padding:14px 18px;
}
.news-item__title{
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  color:var(--ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-item:hover .news-item__title{color:var(--accent)}
.news-item__meta{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:4px;
  font-size:13px;
  color:var(--graphite);
  white-space:nowrap;
  flex-shrink:0;
}
.empty-state{
  border:1px dashed rgba(15,21,18,.24);
  border-radius:14px;
  min-height:180px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:16px;
  padding:32px;
  background:var(--card);
  text-align:center;
}
.empty-state p{font-size:14px;color:var(--graphite)}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 4px;
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  color:var(--ink);
  transition:color .22s var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--accent)}
.faq summary::after{
  content:"+";
  font-size:22px;
  font-weight:400;
  line-height:1;
  color:var(--accent);
  transition:transform .22s var(--ease);
  flex-shrink:0;
}
.faq details[open] summary::after{content:"−";transform:rotate(180deg)}
.faq .faq-answer{padding:0 4px 26px;font-size:15px;line-height:1.85;color:var(--graphite);max-width:42em}

/* ---------- CTA ---------- */
.cta-block{
  position:relative;
  border-radius:20px;
  background:var(--ink);
  color:var(--paper);
  overflow:hidden;
  padding:56px 48px 40px;
}
.cta-block::before{
  content:"";
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-3.webp);
  background-size:cover;
  background-position:center;
  opacity:.16;
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1}
.cta-main{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-block h2{
  font-size:clamp(24px,3vw,36px);
  font-weight:700;
  line-height:1.3;
  color:#fff;
  letter-spacing:-.02em;
}
.cta-block p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(244,241,234,.75);max-width:36em}
.cta-action{display:flex;flex-direction:column;align-items:flex-start;gap:10px}
.cta-price{font-size:13px;color:rgba(244,241,234,.65);font-variant-numeric:tabular-nums}
.cta-foot{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  margin-top:40px;
  padding-top:22px;
  border-top:1px solid rgba(244,241,234,.16);
  font-size:13px;
  color:rgba(244,241,234,.68);
}
.cta-foot span{padding:0 20px;border-left:1px solid rgba(244,241,234,.18)}
.cta-foot span:first-child{padding-left:0;border-left:0}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(244,241,234,.88);
  border-top:1px solid rgba(244,241,234,.12);
  padding:72px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark i{background:rgba(244,241,234,.85)}
.footer-brand .brand-mark i:nth-child(1){background:var(--accent)}
.footer-brand .brand-mark i:nth-child(3){background:rgba(244,241,234,.35)}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-text span:last-child{color:var(--accent)}
.footer-about{font-size:14px;line-height:1.85;color:rgba(244,241,234,.62);max-width:22em}
.footer-col h3{
  font-size:14px;
  font-weight:700;
  letter-spacing:.08em;
  color:#fff;
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:rgba(244,241,234,.72);transition:color .22s var(--ease)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:56px;
  padding:22px 0 28px;
  border-top:1px solid rgba(244,241,234,.12);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(244,241,234,.55);
}
.footer-bottom a:hover{color:var(--accent)}
.to-top{
  position:fixed;
  right:24px;bottom:24px;
  width:48px;height:48px;
  border-radius:50%;
  background:var(--ink);
  color:var(--paper);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 12px 28px -16px rgba(15,21,18,.9);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s;
  z-index:300;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--accent)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .grid-container{padding-left:24px;padding-right:24px}
  .section{padding:80px 0}
  .nav-links{gap:20px}
  .nav-link{font-size:14px}
  .hero{padding:130px 0 80px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media screen and (max-width:767px){
  .grid-container{padding-left:20px;padding-right:20px}
  .site-header{height:64px}
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .icon-btn{width:38px;height:38px}
  .hero{padding:112px 0 64px}
  .hero-sub{font-size:17px;margin-top:18px}
  .hero-cta{margin-top:28px}
  .hero-meta{margin-top:30px;font-size:12px}
  .hero-meta span{padding:0 12px}
  .hero-media{margin-top:36px}
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
  .section-head{margin-bottom:32px}
  .stat-strip{grid-template-columns:1fr 1fr}
  .plan-table{display:none}
  .plan-cards{display:block}
  .plan-row--head{min-height:64px}
  .news-item a{flex-direction:column;align-items:flex-start;gap:8px;padding:16px 4px}
  .news-item__meta{flex-direction:row;gap:12px;align-items:center}
  .cta-block{padding:40px 24px 32px;border-radius:16px}
  .cta-main{gap:24px}
  .cta-foot span{padding:0 12px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .story-stack{gap:20px;margin-top:24px}
  .level-card{padding:26px 22px}
}
@media screen and (max-width:520px){
  .hero h1{font-size:32px}
  .brand-text{font-size:13px}
  .stat-item{padding:22px 18px}
  .stat-num{font-size:26px}
  .footer-grid{grid-template-columns:1fr}
  .ui-btn{padding:13px 22px;font-size:14px}
  .to-top{right:16px;bottom:16px;width:44px;height:44px}
}

/* roulang page: category1 */
:root{
  --ink:#0F1512;
  --ink-soft:#5F6663;
  --paper:#F4F1EA;
  --card:#FBFAF7;
  --zebra:#F7F4EE;
  --accent:#E4552B;
  --accent-soft:rgba(228,85,43,.10);
  --jade:#1F5B49;
  --jade-soft:rgba(31,91,73,.10);
  --line:rgba(15,21,18,.10);
  --line-strong:rgba(15,21,18,.20);
  --radius:16px;
  --radius-sm:12px;
  --shadow-1:0 1px 2px rgba(15,21,18,.05);
  --shadow-2:0 14px 32px -14px rgba(15,21,18,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:76px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .24s var(--ease);}
a:hover{color:var(--accent);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.grid-container{max-width:1240px;padding-left:32px;padding-right:32px;width:100%;margin:0 auto;}
.grid-x{display:flex;flex-wrap:wrap;}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}
.cell{min-width:0;}
.small-12{width:100%;}
@media screen and (min-width:640px){
  .medium-6{width:50%;}
}
@media screen and (min-width:1024px){
  .large-4{width:33.3333%;}
  .large-5{width:41.6666%;}
  .large-6{width:50%;}
  .large-7{width:58.3333%;}
  .large-8{width:66.6666%;}
}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:200;
  height:var(--nav-h);
  display:flex;
  align-items:center;
  background:rgba(255,255,255,.06);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.18);
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-stuck{
  background:rgba(244,241,234,.92);
  border-bottom:1px solid rgba(15,21,18,.12);
  box-shadow:0 6px 24px -18px rgba(15,21,18,.5);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  width:100%;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--ink);
  display:grid;
  grid-template-columns:repeat(2,1fr);
  grid-template-rows:repeat(2,1fr);
  gap:3px;
  padding:8px;
  transition:transform .3s var(--ease);
}
.brand-mark i{display:block;background:var(--paper);border-radius:2px;}
.brand-mark i:nth-child(3){grid-column:1 / -1;}
.brand:hover .brand-mark{transform:rotate(-6deg);}
.brand-text{
  display:flex;flex-direction:column;
  font-size:14px;font-weight:700;line-height:1.25;letter-spacing:.02em;
  color:var(--ink);
}
.brand-text span:last-child{color:var(--ink-soft);font-weight:600;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  padding:6px 0;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .26s var(--ease);
}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);
  color:var(--ink);
  background:transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{background:var(--zebra);border-color:var(--line-strong);transform:translateY(-1px);}
.ui-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;
  border-radius:999px;
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:background .24s var(--ease),color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
  white-space:nowrap;
}
.ui-btn--primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px -12px rgba(228,85,43,.9);}
.ui-btn--primary:hover{background:#cf4a23;color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(228,85,43,.9);}
.ui-btn--ghost{background:transparent;color:var(--ink);border-color:var(--line-strong);}
.ui-btn--ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);transform:translateY(-1px);}
.ui-btn--light{background:var(--paper);color:var(--ink);}
.ui-btn--light:hover{background:#fff;color:var(--ink);transform:translateY(-1px);}
.ui-btn--sm{padding:10px 20px;font-size:14px;}
.nav-cta{padding:10px 22px;font-size:14px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:transparent;
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .24s var(--ease),opacity .2s var(--ease);
  content:"";
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateX(-50%) rotate(45deg);top:0;}
.nav-toggle[aria-expanded="true"] span::after{transform:translateX(-50%) rotate(-45deg);top:0;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section--tight{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-title{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.25;letter-spacing:-.02em;}
.section-sub{font-size:14px;color:var(--ink-soft);margin-top:8px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--ink-soft);text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;}
.ui-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.06em;
  background:var(--zebra);color:var(--ink-soft);
  border:1px solid var(--line);
}
.ui-badge--accent{background:var(--accent-soft);color:#B23F1C;border-color:rgba(228,85,43,.24);}
.ui-badge--jade{background:var(--jade-soft);color:var(--jade);border-color:rgba(31,91,73,.22);}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:calc(var(--nav-h) + 72px) 0 72px;
  background-image:linear-gradient(102deg,rgba(244,241,234,.97) 0%,rgba(244,241,234,.90) 46%,rgba(244,241,234,.62) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-soft);
  margin-bottom:26px;
}
.crumbs a{color:var(--ink-soft);}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{opacity:.5;}
.crumbs .current{color:var(--ink);font-weight:600;}
.page-hero h1{
  font-size:clamp(34px,5.2vw,60px);
  font-weight:800;
  line-height:1.14;
  letter-spacing:-.025em;
  max-width:16em;
}
.page-hero h1 em{
  font-style:normal;
  color:var(--accent);
}
.hero-lead{
  margin-top:22px;
  font-size:17px;
  line-height:1.85;
  color:var(--ink-soft);
  max-width:34em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  margin-top:34px;font-size:13px;color:var(--ink-soft);
}
.hero-meta span{display:inline-flex;align-items:center;gap:8px;}
.hero-meta span+span{padding-left:18px;border-left:1px solid var(--line-strong);}
.hero-meta b{color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums;}
.hero-figure{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-2);
  border:1px solid var(--line);
  background:var(--zebra);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.hero-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:16px 18px;
  font-size:13px;color:#fff;
  background:linear-gradient(to top,rgba(15,21,18,.78),rgba(15,21,18,0));
}

/* ============ 粘性锚点条 ============ */
.anchor-bar{
  position:sticky;
  top:calc(var(--nav-h) + 10px);
  z-index:120;
  display:flex;flex-wrap:wrap;gap:10px;
  padding:12px;
  background:rgba(251,250,247,.94);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--shadow-1);
  width:fit-content;
  max-width:100%;
}
.anchor-bar a{
  padding:8px 18px;
  border-radius:999px;
  font-size:14px;font-weight:500;
  color:var(--ink-soft);
  transition:background .24s var(--ease),color .24s var(--ease);
}
.anchor-bar a:hover{background:var(--zebra);color:var(--ink);}
.anchor-bar a.is-current{background:var(--ink);color:var(--paper);font-weight:600;}

/* ============ 版本卡 ============ */
.version-col{margin-bottom:24px;}
@media screen and (min-width:1024px){
  .version-col:nth-child(even){margin-top:48px;}
  .version-col:nth-child(odd){margin-bottom:0;}
}
.version-card{
  height:100%;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  display:flex;flex-direction:column;
  transition:transform .32s var(--ease),border-color .32s var(--ease),box-shadow .32s var(--ease);
}
.version-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-2);
}
.version-card .vc-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;}
.platform-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.04em;
  color:var(--ink);
}
.platform-tag i{
  width:10px;height:10px;border-radius:3px;background:var(--jade);display:inline-block;
}
.platform-tag--ios i{background:var(--ink);}
.platform-tag--pc i{background:var(--accent);}
.platform-tag--pad i{background:#8A6A2F;}
.version-card h3{
  font-size:22px;font-weight:700;line-height:1.3;
  font-variant-numeric:tabular-nums;
  margin-bottom:10px;
}
.version-note{font-size:14px;color:var(--ink-soft);line-height:1.8;margin-bottom:20px;}
.version-figure{
  border-radius:var(--radius-sm);
  overflow:hidden;
  background:var(--zebra);
  margin-bottom:20px;
  aspect-ratio:16/10;
}
.version-figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.version-card:hover .version-figure img{transform:scale(1.03);}
.spec-list{border-top:1px solid var(--line);margin-top:auto;}
.spec-list li{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:11px 0;
  border-bottom:1px solid var(--line);
  font-size:14px;
}
.spec-list li span{color:var(--ink-soft);}
.spec-list li b{font-weight:600;font-variant-numeric:tabular-nums;color:var(--ink);}
.spec-list li code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:13px;color:var(--jade);
  background:var(--jade-soft);
  padding:2px 8px;border-radius:6px;
}

/* ============ 三步流程 ============ */
.flow-wrap{position:relative;}
.flow-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;position:relative;}
.flow-item{position:relative;padding-top:12px;}
.flow-num{
  font-size:clamp(38px,5vw,58px);
  font-weight:800;
  line-height:1;
  letter-spacing:-.04em;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.flow-item h3{font-size:19px;font-weight:700;margin-bottom:10px;}
.flow-item p{font-size:15px;color:var(--ink-soft);line-height:1.85;max-width:24em;}
.flow-item::after{
  content:"";
  position:absolute;
  top:38px;right:-32px;
  width:32px;
  border-top:2px dashed rgba(15,21,18,.18);
}
.flow-item:last-child::after{display:none;}

/* ============ 更新记录列表 ============ */
.update-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:8px 26px;
}
.update-row{
  display:grid;
  grid-template-columns:120px 1fr 150px;
  align-items:center;
  gap:20px;
  min-height:72px;
  padding:12px 0;
  border-bottom:1px solid var(--line);
  transition:background .24s var(--ease);
  border-radius:8px;
}
.update-row:last-child{border-bottom:none;}
.update-row:hover{background:var(--zebra);}
.update-row .u-ver{
  font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--ink);
}
.update-row .u-title{font-size:16px;font-weight:600;line-height:1.55;}
.update-row .u-title small{display:block;font-size:13px;font-weight:400;color:var(--ink-soft);margin-top:2px;}
.update-row .u-time{font-size:13px;color:var(--ink-soft);text-align:right;font-variant-numeric:tabular-nums;}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line-strong);max-width:860px;}
.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 4px;
  font-size:16px;font-weight:600;
  transition:color .24s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--accent);}
.faq-item summary::after{
  content:"+";
  font-size:22px;font-weight:400;line-height:1;
  color:var(--accent);
  transition:transform .2s var(--ease);
  flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:0 4px 24px;font-size:15px;line-height:1.9;color:var(--ink-soft);max-width:40em;}

/* ============ 相关入口 ============ */
.relate-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.relate-card{
  display:block;
  padding:22px 20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.relate-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-2);color:var(--ink);}
.relate-card .rc-idx{
  font-size:12px;font-weight:700;letter-spacing:.12em;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.relate-card h3{font-size:16px;font-weight:700;margin:10px 0 6px;}
.relate-card p{font-size:13px;color:var(--ink-soft);line-height:1.7;}

/* ============ CTA 条 ============ */
.cta-strip{
  background:var(--ink);
  color:var(--paper);
  border-radius:20px;
  padding:48px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  flex-wrap:wrap;
}
.cta-strip h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.02em;color:var(--paper);}
.cta-strip p{margin-top:12px;font-size:15px;color:rgba(244,241,234,.72);max-width:30em;}
.cta-strip .cta-right{display:flex;flex-direction:column;align-items:flex-start;gap:10px;}
.cta-strip .cta-right small{font-size:13px;color:rgba(244,241,234,.6);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:rgba(244,241,234,.88);
  padding:72px 0 0;
  margin-top:96px;
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:56px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-mark{background:rgba(244,241,234,.12);}
.footer-brand .brand-mark i{background:var(--paper);}
.footer-brand .brand-text{color:var(--paper);}
.footer-brand .brand-text span:last-child{color:rgba(244,241,234,.66);}
.footer-about{font-size:14px;line-height:1.85;color:rgba(244,241,234,.66);max-width:22em;}
.footer-col h3{font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--paper);margin-bottom:18px;}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul li a{font-size:14px;color:rgba(244,241,234,.72);}
.footer-col ul li a:hover{color:var(--accent);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:22px 0;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:rgba(244,241,234,.55);
}
.footer-bottom a{color:rgba(244,241,234,.72);}
.footer-bottom a:hover{color:var(--accent);}
#backTop{
  position:fixed;
  right:24px;bottom:24px;
  width:48px;height:48px;
  border-radius:50%;
  background:var(--ink);
  color:var(--paper);
  border:1px solid rgba(244,241,234,.2);
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;
  transform:translateY(10px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),background .3s var(--ease);
  z-index:180;
}
#backTop.is-on{opacity:1;pointer-events:auto;transform:translateY(0);}
#backTop:hover{background:var(--accent);border-color:var(--accent);color:#fff;}
#backTop svg{width:18px;height:18px;}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
.reveal:nth-child(2){transition-delay:.06s;}
.reveal:nth-child(3){transition-delay:.12s;}
.reveal:nth-child(4){transition-delay:.18s;}

/* ============ 响应式 ============ */
@media screen and (max-width:1279px){
  .grid-container{padding-left:24px;padding-right:24px;}
}
@media screen and (max-width:1023px){
  .nav-links{gap:18px;}
  .nav-link{font-size:14px;}
  .nav-cta{display:none;}
  .hero-figure{margin-top:36px;}
  .flow-grid{grid-template-columns:1fr;gap:24px;}
  .flow-item::after{display:none;}
  .relate-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .update-row{grid-template-columns:100px 1fr;gap:12px;}
  .update-row .u-time{grid-column:2;text-align:left;}
  .cta-strip{padding:36px 28px;}
}
@media screen and (max-width:900px){
  .nav-toggle{display:block;}
  .nav-links{
    position:fixed;
    top:0;left:0;right:0;bottom:0;
    padding:96px 24px 40px;
    background:rgba(15,21,18,.96);
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
    flex-direction:column;
    align-items:flex-start;
    gap:22px;
    opacity:0;
    pointer-events:none;
    transform:translateY(-8px);
    transition:opacity .28s var(--ease),transform .28s var(--ease);
    z-index:190;
    overflow-y:auto;
  }
  .nav-links.is-open{opacity:1;pointer-events:auto;transform:none;}
  .nav-links .nav-link{color:var(--paper);font-size:18px;font-weight:500;}
  .nav-links .nav-link::after{background:var(--accent);}
  .nav-links .nav-link.is-active{color:#fff;}
  .nav-toggle{position:relative;z-index:210;}
  .site-header:has(.nav-links.is-open) .nav-toggle span::before,
  .site-header:has(.nav-links.is-open) .nav-toggle span::after{background:var(--paper);}
  .site-header:has(.nav-links.is-open){background:rgba(15,21,18,.96);border-bottom-color:rgba(255,255,255,.12);}
  .site-header:has(.nav-links.is-open) .brand-text{color:var(--paper);}
  .site-header:has(.nav-links.is-open) .brand-text span:last-child{color:rgba(244,241,234,.66);}
  .site-header:has(.nav-links.is-open) .brand-mark{background:rgba(244,241,234,.14);}
}
@media screen and (max-width:767px){
  :root{--nav-h:64px;}
  .section{padding:60px 0;}
  .section--tight{padding:44px 0;}
  .page-hero{padding:calc(var(--nav-h) + 48px) 0 56px;}
  .page-hero h1{font-size:clamp(28px,7.4vw,40px);}
  .hero-lead{font-size:16px;}
  .hero-meta{gap:12px;font-size:12px;}
  .hero-meta span+span{padding-left:12px;}
  .anchor-bar{width:100%;border-radius:16px;top:calc(var(--nav-h) + 6px);}
  .anchor-bar a{padding:8px 14px;font-size:13px;}
  .version-col{margin-bottom:20px;}
  .version-card{padding:20px;}
  .update-panel{padding:8px 16px;}
  .update-row{grid-template-columns:1fr;gap:6px;padding:16px 0;}
  .update-row .u-time{grid-column:1;}
  .relate-grid{grid-template-columns:1fr;}
  .cta-strip{padding:28px 22px;border-radius:16px;}
  .cta-strip .cta-right{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:40px;}
  .site-footer{margin-top:64px;padding-top:52px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  #backTop{right:16px;bottom:16px;width:44px;height:44px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --ink:#0F1512;
  --ink-soft:#5F6663;
  --paper:#F4F1EA;
  --card:#FBFAF7;
  --stripe:#F7F4EE;
  --accent:#E4552B;
  --accent-soft:#FBEAE3;
  --green:#1F5B49;
  --green-soft:#E4EEE9;
  --line:rgba(15,21,18,.10);
  --line-strong:rgba(15,21,18,.20);
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 1px 2px rgba(15,21,18,.05);
  --shadow-hover:0 14px 32px -14px rgba(15,21,18,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--accent);color:#fff}
:where(a,button,input,summary):focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

/* ---------- 容器 ---------- */
.grid-container{max-width:var(--container);margin:0 auto;padding-left:32px;padding-right:32px;width:100%}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;height:76px;
  background:rgba(255,255,255,.06);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.18);
  transition:background 240ms var(--ease),border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.site-header.is-stuck{
  background:rgba(244,241,234,.92);
  border-bottom-color:rgba(15,21,18,.12);
  box-shadow:0 8px 26px -20px rgba(15,21,18,.55);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:inline-flex;align-items:flex-end;gap:3px;height:26px}
.brand-mark i{display:block;width:6px;border-radius:2px;background:var(--accent)}
.brand-mark i:nth-child(1){height:13px;background:var(--ink)}
.brand-mark i:nth-child(2){height:24px}
.brand-mark i:nth-child(3){height:18px;background:var(--green)}
.brand-text{display:flex;flex-direction:column;line-height:1.08;font-weight:800;font-size:16px;letter-spacing:.01em}
.brand-text span:first-child{font-size:11px;letter-spacing:.18em;color:var(--ink-soft);font-weight:700}
.nav-links{display:flex;align-items:center;gap:28px;flex:1 1 auto;justify-content:center}
.nav-link{position:relative;display:inline-block;font-size:15px;font-weight:500;padding:6px 0;transition:color 200ms var(--ease)}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;
  background:var(--ink);transform:scaleX(0);transform-origin:left;
  transition:transform 260ms var(--ease),background 200ms var(--ease);
}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{font-weight:700}
.nav-link.is-active::after{transform:scaleX(1);background:var(--accent)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line-strong);color:var(--ink);
  transition:background 220ms var(--ease),border-color 220ms var(--ease),transform 220ms var(--ease);
}
.icon-btn svg{width:18px;height:18px}
.icon-btn:hover{background:rgba(15,21,18,.07);border-color:var(--ink);transform:translateY(-1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);
  align-items:center;justify-content:center;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);content:"";
  transition:transform 240ms var(--ease),opacity 200ms var(--ease);
}
.nav-toggle span::before{transform:translateY(-6px)}
.nav-toggle span::after{transform:translateY(4px)}

/* ---------- 按钮 ---------- */
.ui-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background 220ms var(--ease),color 220ms var(--ease),transform 220ms var(--ease),box-shadow 220ms var(--ease),filter 220ms var(--ease);
}
.ui-btn--primary{background:var(--accent);color:#fff;box-shadow:0 10px 24px -16px rgba(228,85,43,.9)}
.ui-btn--primary:hover{filter:brightness(.92);transform:translateY(-1px);box-shadow:0 16px 30px -16px rgba(228,85,43,.9)}
.ui-btn--ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.ui-btn--ghost:hover{background:var(--ink);color:var(--paper)}
.ui-btn--light{background:var(--paper);color:var(--ink)}
.ui-btn--light:hover{background:#fff;transform:translateY(-1px)}
.ui-btn--sm{padding:10px 20px;font-size:14px}
.nav-cta{padding:12px 24px;font-size:14px}

/* ---------- 徽章 / 标签 ---------- */
.ui-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.06em;
  background:rgba(15,21,18,.07);color:var(--ink);
}
.ui-badge--accent{background:var(--accent-soft);color:#B63D19}
.ui-badge--green{background:var(--green-soft);color:var(--green)}
.ui-badge--line{background:transparent;border:1px solid var(--line-strong);color:var(--ink-soft)}

/* ---------- 阅读进度 ---------- */
.read-progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--accent);z-index:300;transition:width 90ms linear}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:220;display:flex;flex-direction:column;
  background:rgba(244,241,234,.97);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  padding:20px;overflow-y:auto;
  transform:translateY(-100%);visibility:hidden;
  transition:transform 340ms var(--ease),visibility 340ms var(--ease);
}
.mobile-drawer.is-open{transform:translateY(0);visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px}
.drawer-close{width:44px;height:44px;border-radius:50%;border:1px solid var(--line-strong);display:inline-flex;align-items:center;justify-content:center;font-size:20px;line-height:1}
.drawer-close:hover{background:rgba(15,21,18,.07)}
.drawer-links{display:flex;flex-direction:column;gap:18px;margin-bottom:32px}
.drawer-links a{font-size:18px;font-weight:600;padding:6px 0;border-bottom:1px solid var(--line)}
.drawer-links a:hover{color:var(--accent)}
.drawer-cta{width:100%}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;overflow:hidden;
  padding-top:150px;padding-bottom:40px;
  background:linear-gradient(180deg,#FBFAF7 0%,var(--paper) 100%);
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.10;pointer-events:none;
}
.article-hero > .grid-container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-soft);margin-bottom:28px}
.breadcrumb a{transition:color 200ms var(--ease)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:rgba(15,21,18,.3)}
.breadcrumb .current{font-weight:700;color:var(--ink)}
.article-head{max-width:920px}
.article-head .ui-badge{margin-bottom:20px}
.article-head h1{
  font-size:clamp(30px,4.4vw,52px);
  font-weight:800;line-height:1.16;letter-spacing:-.025em;
  margin-bottom:24px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--ink-soft)}
.article-meta .dot{width:1px;height:13px;background:rgba(15,21,18,.24);display:inline-block}

/* ---------- 文章主体布局 ---------- */
.article-wrap{padding-top:20px;padding-bottom:24px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,820px) 240px;
  gap:56px;
  align-items:start;
  justify-content:center;
}
.article-main{min-width:0}
.article-body{
  font-size:16.5px;line-height:1.9;color:#222926;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:44px 48px;
  box-shadow:var(--shadow);
}
.article-body > * + *{margin-top:1.1em}
.article-body h2{
  position:relative;padding-left:18px;margin-top:40px;
  font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.4;letter-spacing:-.01em;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:3px;background:var(--accent);
}
.article-body h3{font-size:19px;font-weight:700;margin-top:28px;color:var(--ink)}
.article-body h4{font-size:17px;font-weight:700;margin-top:22px;color:var(--ink)}
.article-body p{margin-top:1.1em}
.article-body a{color:var(--accent);text-decoration:underline;text-underline-offset:4px;transition:opacity 180ms var(--ease)}
.article-body a:hover{opacity:.75}
.article-body strong{font-weight:700;color:var(--ink)}
.article-body ul,.article-body ol{margin-top:1.1em;padding-left:24px}
.article-body li{margin:.4em 0}
.article-body li::marker{color:var(--accent);font-weight:700}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;border-left:3px solid var(--green);
  background:var(--green-soft);border-radius:0 12px 12px 0;color:#1C3A31;
}
.article-body blockquote p{margin-top:0}
.article-body img{border-radius:12px;margin:28px 0;width:100%;object-fit:cover;background:var(--stripe)}
.article-body figure{margin:28px 0}
.article-body figcaption{font-size:13px;color:var(--ink-soft);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:26px 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;line-height:1.6}
.article-body th{background:var(--stripe);font-weight:700;color:var(--ink)}
.article-body td:first-child{font-weight:700;color:var(--ink)}
.article-body code{background:var(--stripe);padding:2px 6px;border-radius:6px;font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* ---------- 标签 ---------- */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.tag-pill{
  display:inline-flex;align-items:center;padding:8px 16px;border-radius:999px;
  font-size:13px;font-weight:600;color:var(--ink-soft);
  border:1px solid var(--line-strong);background:var(--card);
  transition:color 200ms var(--ease),border-color 200ms var(--ease),background 200ms var(--ease),transform 200ms var(--ease);
}
.tag-pill:hover{color:var(--accent);border-color:var(--accent);transform:translateY(-1px)}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed var(--line-strong);border-radius:14px;background:var(--card);
  padding:64px 24px;text-align:center;
}
.empty-state p{font-size:15px;color:var(--ink-soft);margin-bottom:20px}

/* ---------- 侧边目录 ---------- */
.article-aside{position:sticky;top:104px}
.toc-toggle{display:none;width:100%;padding:12px 16px;margin-bottom:12px;border-radius:12px;border:1px solid var(--line-strong);background:var(--card);font-size:14px;font-weight:600;align-items:center;justify-content:space-between}
.toc-toggle::after{content:"+";font-size:16px;color:var(--accent)}
.article-aside.is-open .toc-toggle::after{content:"−"}
.toc{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.toc-title{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--ink-soft);margin-bottom:12px}
.toc ul{list-style:none;font-size:14px;line-height:1.6}
.toc li{margin:0}
.toc a{
  display:block;padding:7px 0 7px 12px;border-left:2px solid transparent;
  color:var(--ink-soft);transition:color 200ms var(--ease),border-color 200ms var(--ease);
}
.toc a:hover{color:var(--ink)}
.toc a.is-active{color:var(--accent);border-left-color:var(--accent);font-weight:600}

/* ---------- 板块 ---------- */
.section{padding-top:72px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.25;letter-spacing:-.01em}
.section-head p{font-size:14px;color:var(--ink-soft);margin-top:6px}
.text-link{font-size:15px;font-weight:600;color:var(--ink);text-decoration:underline;text-underline-offset:4px;transition:color 200ms var(--ease)}
.text-link:hover{color:var(--accent)}

/* ---------- 相关推荐卡 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.ui-card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform 300ms var(--ease),border-color 300ms var(--ease),box-shadow 300ms var(--ease);
}
.ui-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.ui-card .thumb{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--stripe)}
.ui-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.ui-card:hover .thumb img{transform:scale(1.03)}
.ui-card .card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.ui-card .card-body h3{font-size:17px;font-weight:700;line-height:1.5;letter-spacing:-.01em}
.ui-card .card-body p{font-size:14px;line-height:1.75;color:var(--ink-soft)}
.card-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-soft);margin-top:auto;padding-top:8px}

/* ---------- 返回按钮 ---------- */
.back-row{display:flex;justify-content:flex-start;margin-top:40px}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:20px 0}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  list-style:none;cursor:pointer;font-size:16.5px;font-weight:600;line-height:1.6;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;font-weight:400;color:var(--accent);transition:transform 220ms var(--ease)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .faq-a{font-size:15px;line-height:1.85;color:var(--ink-soft);margin-top:12px;max-width:900px}

/* ---------- CTA ---------- */
.cta-block{
  margin-top:88px;background:var(--ink);color:rgba(255,255,255,.9);
  border-radius:20px;padding:52px 56px;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-block h2{font-size:clamp(24px,2.8vw,34px);font-weight:700;line-height:1.25;color:#fff;margin-bottom:10px}
.cta-block p{font-size:15px;color:rgba(255,255,255,.72);max-width:520px}
.cta-side{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.cta-side small{font-size:13px;color:rgba(255,255,255,.6)}
.cta-notes{display:flex;flex-wrap:wrap;gap:20px;margin-top:28px;font-size:13px;color:rgba(255,255,255,.6);width:100%}
.cta-notes span{display:inline-flex;align-items:center;gap:20px}
.cta-notes .bar{width:1px;height:12px;background:rgba(255,255,255,.24)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.88);margin-top:96px;border-top:1px solid rgba(255,255,255,.1);padding-top:72px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:56px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.site-footer .brand-text{color:#fff}
.site-footer .brand-text span:first-child{color:rgba(255,255,255,.55)}
.site-footer .brand-mark i:nth-child(1){background:#fff}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:260px}
.footer-col h3{font-size:13px;font-weight:700;letter-spacing:.12em;color:rgba(255,255,255,.5);margin-bottom:16px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.82);transition:color 200ms var(--ease)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.72);transition:color 200ms var(--ease)}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- 返回顶部 ---------- */
.back-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;
  background:var(--ink);color:#fff;display:inline-flex;align-items:center;justify-content:center;
  z-index:110;opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity 240ms var(--ease),transform 240ms var(--ease),visibility 240ms var(--ease),background 200ms var(--ease);
}
.back-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:var(--accent)}
.back-top svg{width:18px;height:18px}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity 420ms var(--ease),transform 420ms var(--ease)}
.reveal.is-in{opacity:1;transform:translateY(0)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-aside{position:static;order:-1}
  .toc-toggle{display:flex}
  .article-aside .toc{display:none}
  .article-aside.is-open .toc{display:block}
  .article-body{padding:36px 34px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .grid-container{padding-left:24px;padding-right:24px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-block{padding:40px 32px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .site-header{height:64px}
  .nav-inner{height:64px}
  .article-hero{padding-top:118px;padding-bottom:28px}
  .article-body{padding:28px 22px;font-size:16px;border-radius:14px}
  .article-head h1{font-size:clamp(26px,7vw,34px)}
  .article-meta{gap:8px;font-size:12.5px}
  .section{padding-top:56px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .cta-block{padding:32px 24px;border-radius:16px;gap:24px}
  .cta-notes{gap:12px}
  .cta-notes span{gap:12px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding-bottom:40px}
  .footer-about{max-width:none}
  .back-top{right:16px;bottom:16px;width:44px;height:44px}
  .article-body h2{margin-top:32px}
}
@media (max-width:519px){
  .grid-container{padding-left:20px;padding-right:20px}
  .footer-grid{grid-template-columns:1fr}
  .ui-btn{padding:13px 22px;font-size:14.5px}
  .breadcrumb{font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#0F1512;
  --ink-soft:#1B241F;
  --graphite:#5F6663;
  --paper:#F4F1EA;
  --card:#FBFAF7;
  --zebra:#F7F4EE;
  --accent:#E4552B;
  --accent-deep:#B23C18;
  --accent-soft:rgba(228,85,43,.10);
  --accent-tint:#FBEDE7;
  --pine:#1F5B49;
  --pine-soft:rgba(31,91,73,.10);
  --line:rgba(15,21,18,.10);
  --line-strong:rgba(15,21,18,.20);
  --radius:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 1px 2px rgba(15,21,18,.05);
  --shadow-hover:0 14px 32px -14px rgba(15,21,18,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1240px;
  --nav-h:76px;
}

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

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

body{
  margin:0;
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:none;}
ul,ol,figure,p{margin:0;padding:0;}

h1,h2,h3,h4{
  margin:0;
  font-weight:700;
  line-height:1.25;
  letter-spacing:-0.02em;
  color:var(--ink);
}

h1{font-size:clamp(30px,4.6vw,52px);font-weight:800;letter-spacing:-0.025em;line-height:1.14;}
h2{font-size:clamp(22px,2.6vw,30px);}
h3{font-size:18px;font-weight:600;letter-spacing:-0.01em;}

::selection{background:rgba(228,85,43,.22);}

.grid-container{
  width:100%;
  max-width:var(--container);
  margin-left:auto;
  margin-right:auto;
  padding-left:32px;
  padding-right:32px;
}

.section{padding:72px 0;}
.section--tight{padding:48px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.12em;
  color:var(--graphite);text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent);border-radius:2px;}

/* ---------- 按钮与徽章 ---------- */
.ui-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;text-align:center;
  transition:transform .22s var(--ease),background-color .22s var(--ease),
             color .22s var(--ease),border-color .22s var(--ease),
             box-shadow .22s var(--ease),filter .22s var(--ease);
}
.ui-btn--primary{background:var(--accent);color:#fff;box-shadow:0 1px 2px rgba(15,21,18,.08);}
.ui-btn--primary:hover{filter:brightness(.92);transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(228,85,43,.75);}
.ui-btn--ghost{background:transparent;border-color:rgba(15,21,18,.32);color:var(--ink);}
.ui-btn--ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.ui-btn--light{background:var(--paper);color:var(--ink);}
.ui-btn--light:hover{background:#fff;transform:translateY(-1px);}
.ui-btn--sm{padding:11px 20px;font-size:14px;}
.ui-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

.text-link{
  font-size:14px;font-weight:600;color:var(--ink);
  border-bottom:1px solid rgba(15,21,18,.35);
  padding-bottom:2px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.text-link:hover{color:var(--accent);border-color:var(--accent);}
.text-link:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px;}

.ui-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;letter-spacing:.06em;
  background:rgba(15,21,18,.06);color:var(--ink);
  white-space:nowrap;
}
.ui-badge--accent{background:var(--accent-soft);color:var(--accent-deep);}
.ui-badge--pine{background:var(--pine-soft);color:var(--pine);}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.06);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.18);
  transition:background-color .24s var(--ease),border-color .24s var(--ease),
             box-shadow .24s var(--ease);
}
.site-header.is-stuck{
  background:rgba(244,241,234,.92);
  border-bottom-color:rgba(15,21,18,.12);
  box-shadow:0 8px 24px -20px rgba(15,21,18,.6);
}
.nav-inner{
  display:flex;align-items:center;gap:20px;
  height:var(--nav-h);
}
.brand{
  display:flex;align-items:center;gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  width:28px;height:28px;
  display:grid;
  grid-template-columns:1fr 1fr;
  grid-template-rows:1fr 1fr;
  gap:3px;flex:0 0 28px;
}
.brand-mark i{display:block;background:var(--ink);border-radius:3px;transition:background-color .24s var(--ease);}
.brand-mark i:nth-child(3){grid-column:span 2;background:var(--accent);border-radius:var(--radius-pill);}
.brand-text{
  display:flex;flex-direction:column;
  font-size:15px;font-weight:800;line-height:1.14;letter-spacing:-0.01em;
  color:var(--ink);
}
.nav-links{
  display:flex;align-items:center;gap:28px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  font-size:15px;font-weight:500;
  color:var(--ink);
  padding:6px 0;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--ink);border-radius:2px;
  transition:width .22s var(--ease);
}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{font-weight:700;}
.nav-link.is-active::after{width:100%;}
.nav-link:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:4px;}

.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(15,21,18,.18);
  background:rgba(255,255,255,.35);
  color:var(--ink);
  transition:background-color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{background:rgba(255,255,255,.75);border-color:var(--line-strong);transform:translateY(-1px);}
.icon-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid rgba(15,21,18,.2);
  border-radius:12px;
  position:relative;
  cursor:pointer;
  background:rgba(255,255,255,.35);
}
.nav-toggle span{position:absolute;left:12px;right:12px;top:50%;height:2px;margin-top:-1px;background:var(--ink);border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;right:0;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-7px;}
.nav-toggle span::after{top:7px;}
.nav-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

/* ---------- 页面头 ---------- */
.page-hero{
  position:relative;
  padding:calc(var(--nav-h) + 56px) 0 64px;
  background:var(--paper);
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center right;
  opacity:.22;
  pointer-events:none;
}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(244,241,234,.99) 0%,rgba(244,241,234,.92) 46%,rgba(244,241,234,.42) 100%);
}
.page-hero-inner{position:relative;z-index:1;}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--graphite);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--graphite);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb span{color:rgba(15,21,18,.28);}
.breadcrumb .is-current{color:var(--ink);font-weight:600;}

.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 260px;
  gap:48px;
  align-items:end;
}
.page-hero h1{max-width:20ch;}
.hero-lead{
  margin-top:20px;
  max-width:46ch;
  font-size:17px;
  line-height:1.85;
  color:var(--graphite);
}
.hero-aside{
  display:flex;flex-direction:column;align-items:flex-start;gap:14px;
  padding:22px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(251,250,247,.82);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.hero-aside p{font-size:13px;line-height:1.7;color:var(--graphite);}
.hero-aside .ui-btn{width:100%;}

/* ---------- 分栏布局 ---------- */
.split-layout{
  display:grid;
  grid-template-columns:280px minmax(0,1fr);
  gap:56px;
  align-items:start;
}
.toc-card{
  position:sticky;
  top:calc(var(--nav-h) + 24px);
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--card);
  padding:24px;
  box-shadow:var(--shadow);
}
.toc-card h2{
  font-size:13px;font-weight:700;letter-spacing:.1em;
  color:var(--graphite);text-transform:uppercase;
  margin-bottom:16px;
}
.toc-list{list-style:none;display:grid;gap:2px;margin-bottom:22px;}
.toc-list a{
  display:block;
  padding:9px 12px;
  border-left:2px solid transparent;
  border-radius:0 8px 8px 0;
  font-size:14px;color:var(--graphite);
  transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);
}
.toc-list a:hover,.toc-list a:focus-visible{
  color:var(--ink);
  background:var(--zebra);
  border-left-color:var(--accent);
  outline:none;
}
.toc-list a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.toc-back{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--graphite);
  transition:color .2s var(--ease);
}
.toc-back:hover{color:var(--accent);}

/* ---------- 正文 ---------- */
.doc-body{max-width:720px;}
.doc-body section{scroll-margin-top:calc(var(--nav-h) + 24px);}
.doc-body h2{
  position:relative;
  padding-left:18px;
  margin:60px 0 20px;
  font-size:clamp(21px,2.2vw,26px);
}
.doc-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;
  background:var(--accent);border-radius:3px;
}
.doc-body section:first-of-type h2{margin-top:0;}
.doc-body p{margin-bottom:1.1em;color:var(--ink);}
.doc-body p.muted{color:var(--graphite);font-size:15px;}

.doc-list{
  list-style:none;
  margin:20px 0 26px;
  padding:0;
  display:grid;gap:2px;
}
.doc-list li{
  position:relative;
  padding:10px 0 10px 22px;
  color:var(--graphite);
  font-size:15px;
  line-height:1.8;
}
.doc-list li::before{
  content:"";position:absolute;left:0;top:20px;
  width:7px;height:7px;border-radius:2px;
  background:var(--accent);
}
.doc-list strong{color:var(--ink);font-weight:600;}

.risk-box{
  border-left:4px solid var(--accent);
  background:var(--accent-tint);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  padding:20px 24px;
  margin:22px 0;
}
.risk-box h3{font-size:16px;margin-bottom:6px;color:var(--accent-deep);}
.risk-box p{font-size:15px;line-height:1.8;color:#6B3A28;margin:0;}

.check-list{
  list-style:none;
  margin:22px 0 28px;
  border-top:1px solid var(--line);
}
.check-list li{
  display:flex;align-items:center;gap:12px;
  min-height:44px;
  padding:10px 8px;
  border-bottom:1px solid var(--line);
  font-size:15px;
  line-height:1.6;
  cursor:pointer;
  transition:background-color .2s var(--ease);
}
.check-list li:hover{background:var(--zebra);}
.check-list .box{
  flex:0 0 18px;width:18px;height:18px;
  border:1px solid rgba(15,21,18,.32);
  border-radius:5px;
  background:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.check-list .box::after{
  content:"";
  width:9px;height:5px;
  border-left:2px solid #fff;
  border-bottom:2px solid #fff;
  transform:rotate(-45deg) translate(-1px,-1px);
  opacity:0;
  transition:opacity .18s var(--ease);
}
.check-list li.is-done .box{background:var(--accent);border-color:var(--accent);}
.check-list li.is-done .box::after{opacity:1;}
.check-list li.is-done{color:var(--ink);}
.check-list li:focus-visible{outline:2px solid var(--accent);outline-offset:-2px;border-radius:8px;}

.ui-list{
  list-style:none;
  margin:22px 0 28px;
  border-top:1px solid var(--line);
}
.ui-list li{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:16px 8px;
  border-bottom:1px solid var(--line);
  transition:background-color .2s var(--ease);
}
.ui-list li:hover{background:var(--zebra);}
.ui-list .row-main{min-width:0;}
.ui-list strong{display:block;font-size:16px;font-weight:600;color:var(--ink);}
.ui-list .meta{display:block;font-size:13px;color:var(--graphite);line-height:1.6;}
.ui-list .ui-badge{flex:0 0 auto;}

.doc-figure{
  margin:26px 0 30px;
  border-radius:var(--radius-sm);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--zebra);
}
.doc-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--zebra);}
.doc-figure figcaption{
  padding:12px 16px;
  font-size:13px;
  color:var(--graphite);
  background:var(--card);
  border-top:1px solid var(--line);
}

.steps{
  list-style:none;
  counter-reset:step;
  margin:24px 0 30px;
}
.steps li{
  position:relative;
  padding:0 0 26px 56px;
  counter-increment:step;
}
.steps li::before{
  content:"0" counter(step);
  position:absolute;left:0;top:0;
  font-size:22px;font-weight:800;
  letter-spacing:-0.02em;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.steps li::after{
  content:"";position:absolute;left:14px;top:34px;bottom:6px;width:1px;
  background:var(--line);
}
.steps li:last-child{padding-bottom:0;}
.steps li:last-child::after{display:none;}
.steps h3{font-size:16px;margin-bottom:4px;}
.steps p{font-size:15px;color:var(--graphite);margin:0;line-height:1.8;}

.faq{
  margin:24px 0 8px;
  border-top:1px solid var(--line);
}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{
  list-style:none;
  cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 6px;
  font-size:17px;font-weight:600;
  line-height:1.5;
  transition:color .2s var(--ease);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--accent);}
.faq summary:focus-visible{outline:2px solid var(--accent);outline-offset:-2px;border-radius:8px;}
.faq summary .icon{
  position:relative;flex:0 0 16px;width:16px;height:16px;
}
.faq summary .icon::before,
.faq summary .icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.faq summary .icon::before{left:0;top:7px;width:16px;height:2px;}
.faq summary .icon::after{left:7px;top:0;width:2px;height:16px;}
.faq details[open] summary .icon::after{transform:scaleY(0);opacity:0;}
.faq .answer{
  padding:0 6px 24px;
  font-size:15px;
  line-height:1.85;
  color:var(--graphite);
  max-width:64ch;
}

/* ---------- 相关入口 ---------- */
.entry-section{
  border-top:1px solid var(--line);
  background:var(--card);
}
.entry-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  flex-wrap:wrap;
  margin-bottom:28px;
}
.entry-head p{font-size:15px;color:var(--graphite);max-width:50ch;}
.entry-links{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
}
.entry-card{
  display:flex;flex-direction:column;justify-content:space-between;gap:16px;
  min-height:148px;
  padding:20px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--paper);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease),background-color .24s var(--ease);
}
.entry-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-hover);
  background:#fff;
}
.entry-card:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.entry-card .entry-title{font-size:16px;font-weight:700;letter-spacing:-0.01em;}
.entry-card .entry-desc{font-size:13px;color:var(--graphite);line-height:1.7;}
.entry-card .entry-arrow{font-size:13px;font-weight:600;color:var(--accent);letter-spacing:.04em;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.88);
  padding:72px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark i{background:rgba(255,255,255,.9);}
.footer-brand .brand-mark i:nth-child(3){background:var(--accent);}
.footer-brand .brand-text{color:#fff;}
.footer-about{
  font-size:14px;line-height:1.85;
  color:rgba(255,255,255,.62);
  max-width:22ch;
}
.footer-col h3{
  font-size:13px;font-weight:700;letter-spacing:.1em;
  color:rgba(255,255,255,.5);
  margin-bottom:16px;
}
.footer-col ul{list-style:none;display:grid;gap:10px;}
.footer-col a{
  font-size:14px;
  color:rgba(255,255,255,.82);
  transition:color .2s var(--ease);
}
.footer-col a:hover{color:var(--accent);}
.footer-col a:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px;}
.footer-bottom{
  margin-top:52px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px 28px;
  align-items:center;justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.75);transition:color .2s var(--ease);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;
  width:48px;height:48px;border-radius:50%;
  background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 12px 26px -16px rgba(15,21,18,.9);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease),background-color .2s var(--ease);
  z-index:90;cursor:pointer;
}
.to-top svg{width:18px;height:18px;}
.to-top.is-visible{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:var(--accent);}
.to-top:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}

/* ---------- 入场 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .split-layout{grid-template-columns:1fr;gap:36px;}
  .toc-card{position:static;top:auto;}
  .doc-body{max-width:none;}
  .entry-links{grid-template-columns:repeat(2,minmax(0,1fr));}
}

@media (max-width:1023px){
  .nav-inner{height:64px;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-block;}
  .nav-links{
    position:fixed;
    left:0;right:0;top:64px;bottom:0;
    display:none;
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    margin-left:0;
    padding:16px 24px 40px;
    background:rgba(244,241,234,.98);
    -webkit-backdrop-filter:blur(20px);
    backdrop-filter:blur(20px);
    border-top:1px solid var(--line);
    overflow-y:auto;
    z-index:110;
  }
  .nav-links.is-open{display:flex;}
  .nav-link{
    width:100%;
    font-size:18px;
    padding:16px 0;
    border-bottom:1px solid var(--line);
  }
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--accent);}
  .icon-btn{display:none;}

  .hero-grid{grid-template-columns:1fr;gap:32px;align-items:start;}
  .hero-aside{max-width:420px;}
  .page-hero{padding-top:calc(64px + 40px);}
}

@media (max-width:768px){
  .grid-container{padding-left:24px;padding-right:24px;}
  .section{padding:56px 0;}
  .section--tight{padding:40px 0;}
  .page-hero{padding-bottom:48px;}
  .hero-lead{font-size:16px;}
  .doc-body h2{margin:44px 0 16px;}
  .doc-body h2::before{top:.16em;bottom:.16em;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-bottom{margin-top:36px;}
  .ui-list li{flex-direction:column;align-items:flex-start;gap:6px;}
}

@media (max-width:560px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .entry-links{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-about{max-width:none;}
  .hero-aside{padding:18px;}
  .steps li{padding-left:44px;}
  .steps li::before{font-size:19px;}
  .steps li::after{left:11px;}
  .ui-btn{padding:13px 22px;font-size:14px;}
  .ui-btn--sm{padding:10px 18px;}
  .check-list li{font-size:14px;}
  .faq summary{font-size:16px;padding:18px 4px;}
  .to-top{right:16px;bottom:16px;width:44px;height:44px;}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
}

/* roulang page: category3 */
:root{
  --ink:#0F1512;
  --gray:#5F6663;
  --paper:#F4F1EA;
  --card:#FBFAF7;
  --stripe:#F7F4EE;
  --accent:#E4552B;
  --accent-deep:#C9461F;
  --green:#1F5B49;
  --line:rgba(15,21,18,.10);
  --line-2:rgba(15,21,18,.20);
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 1px 2px rgba(15,21,18,.05);
  --shadow-hover:0 14px 32px -14px rgba(15,21,18,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:76px;
  --maxw:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:140px}
body{
  margin:0;padding:0;background:var(--paper);color:var(--ink);
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.9;font-weight:400;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;border:0}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--accent)}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1{font-size:clamp(34px,5.4vw,62px);font-weight:800;line-height:1.14;letter-spacing:-.025em}
h2{font-size:clamp(24px,3vw,38px);font-weight:700;line-height:1.25;letter-spacing:-.015em}
h3{font-size:19px;font-weight:600;line-height:1.45}
strong{font-weight:700}
.grid-container{max-width:var(--maxw);width:100%;padding-left:32px;padding-right:32px;margin-left:auto;margin-right:auto}
@media(max-width:1023px){.grid-container{padding-left:24px;padding-right:24px}}
@media(max-width:639px){.grid-container{padding-left:20px;padding-right:20px}}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(255,255,255,.06);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.20);
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-stuck{
  background:rgba(244,241,234,.93);
  border-bottom-color:rgba(15,21,18,.12);
  box-shadow:0 8px 26px -20px rgba(15,21,18,.55);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:var(--nav-h);
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{display:inline-flex;align-items:flex-end;gap:3px;width:26px;height:24px;flex:0 0 auto}
.brand-mark i{display:block;width:6px;border-radius:2px;background:var(--ink);transition:background .22s var(--ease)}
.brand-mark i:nth-child(1){height:12px}
.brand-mark i:nth-child(2){height:22px;background:var(--accent)}
.brand-mark i:nth-child(3){height:16px}
.brand-text{display:flex;flex-direction:column;line-height:1.08;font-size:15px;font-weight:800;letter-spacing:-.01em}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink);padding:6px 0}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--ink);
  transform:scaleX(0);transform-origin:left center;opacity:.4;
  transition:transform .28s var(--ease),opacity .28s var(--ease);
}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link:hover{color:var(--ink)}
.nav-link.is-active{font-weight:700}
.nav-link.is-active::after{transform:scaleX(1);opacity:1;background:var(--accent)}
.nav-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:999px;border:1px solid rgba(15,21,18,.16);
  color:var(--ink);background:rgba(255,255,255,.28);
  transition:background .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.icon-btn svg{width:18px;height:18px}
.icon-btn:hover{background:#fff;border-color:var(--line-2);color:var(--ink);transform:translateY(-1px)}
.icon-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.nav-cta{height:40px;padding:0 22px;font-size:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid rgba(15,21,18,.18);border-radius:12px;
  background:rgba(255,255,255,.25);align-items:center;justify-content:center;
}
.nav-toggle span{position:relative;display:block;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)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:200;display:flex;flex-direction:column;gap:8px;
  padding:24px 24px 32px;background:rgba(244,241,234,.97);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.nav-drawer.is-open{opacity:1;visibility:visible}
.nav-drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.nav-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line-2);
  display:inline-flex;align-items:center;justify-content:center;font-size:22px;line-height:1;color:var(--ink);
}
.nav-close:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.nav-drawer nav{display:flex;flex-direction:column;gap:18px;margin:8px 0 28px}
.nav-drawer nav a{font-size:18px;font-weight:600;color:var(--ink)}
.nav-drawer nav a.is-active{color:var(--accent)}
.nav-drawer .ui-btn{width:100%}

/* ---------- 按钮 / 徽章 ---------- */
.ui-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.ui-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.ui-btn--primary{background:var(--accent);color:#fff}
.ui-btn--primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px -16px rgba(228,85,43,.9)}
.ui-btn--ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.ui-btn--ghost:hover{background:var(--ink);color:var(--paper)}
.ui-btn--light{background:var(--paper);color:var(--ink)}
.ui-btn--light:hover{background:#fff;color:var(--ink);transform:translateY(-1px)}
.ui-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;letter-spacing:.06em;font-weight:600;line-height:1;
  background:rgba(15,21,18,.07);color:var(--ink);white-space:nowrap;
}
.ui-badge--accent{background:rgba(228,85,43,.13);color:var(--accent-deep)}
.ui-badge--green{background:rgba(31,91,73,.12);color:var(--green)}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);
  border-bottom:1px solid rgba(15,21,18,.28);padding-bottom:2px;
  transition:color .22s var(--ease),border-color .22s var(--ease);
}
.text-link:hover{color:var(--accent);border-color:var(--accent)}
.text-link:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding-top:calc(var(--nav-h) + 62px);padding-bottom:72px;
  background:linear-gradient(180deg,#FAF7F1 0%,var(--paper) 100%);
}
.hero-bg{
  position:absolute;inset:0;pointer-events:none;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.20;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(244,241,234,.95) 0%,rgba(244,241,234,.62) 58%,rgba(244,241,234,.82) 100%);
}
.hero-inner{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--gray);margin-bottom:26px}
.crumb a{color:var(--gray)}
.crumb a:hover{color:var(--ink)}
.crumb .sep{opacity:.55}
.crumb .now{color:var(--ink);font-weight:700}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:center}
.hero-lead{margin-top:22px;font-size:18px;line-height:1.8;color:var(--gray);max-width:36em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:0;margin-top:34px;list-style:none}
.hero-meta li{position:relative;padding:0 20px;font-size:13px;color:var(--gray);line-height:1.6}
.hero-meta li:first-child{padding-left:0}
.hero-meta li + li::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:1px;height:22px;background:var(--line-2)}
.hero-meta b{display:block;font-size:14px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
.hero-figure{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-hover);background:var(--stripe)}
.hero-figure img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;background:var(--stripe)}

/* ---------- 筛选条 ---------- */
.filter-bar{
  position:sticky;top:var(--nav-h);z-index:60;
  background:rgba(244,241,234,.94);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.filter-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line-2);font-size:14px;font-weight:500;color:var(--ink);
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.chip:hover{background:var(--stripe);border-color:var(--ink);color:var(--ink)}
.chip:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.chip.is-current{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.filter-note{font-size:13px;color:var(--gray);display:flex;align-items:center;gap:10px}
.filter-note b{color:var(--ink);font-weight:700}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{max-width:44em;margin-bottom:44px}
.section-head h2{margin-top:14px}
.section-head p{margin-top:16px;font-size:16px;line-height:1.9;color:var(--gray)}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;max-width:none;flex-wrap:wrap}

/* ---------- 专题卡片（两列不等高） ---------- */
.flow-grid{margin-left:-14px;margin-right:-14px}
.flow-grid > .cell{padding-left:14px;padding-right:14px;margin-bottom:32px}
.ui-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
  transition:transform .32s var(--ease),box-shadow .32s var(--ease),border-color .32s var(--ease);
}
.ui-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-2)}
.flow-card{display:flex;flex-direction:column;height:100%}
.flow-media{overflow:hidden;background:var(--stripe)}
.flow-media img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .42s var(--ease)}
.flow-card:hover .flow-media img{transform:scale(1.03)}
.flow-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.flow-body h3{font-size:20px;letter-spacing:-.01em}
.flow-body p{font-size:15px;line-height:1.85;color:var(--gray)}
.point-list{display:grid;gap:8px;margin-top:4px}
.point-list li{position:relative;padding-left:18px;font-size:14px;line-height:1.75;color:var(--gray)}
.point-list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.flow-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px}
.flow-foot .meta{font-size:13px;color:var(--gray)}
@media(min-width:1024px){
  .flow-grid > .cell.is-offset{margin-top:52px}
}

/* ---------- 三步路线 ---------- */
.route-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;margin-top:8px}
.route-steps li{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px 28px;box-shadow:var(--shadow);
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.route-steps li:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--shadow-hover)}
.route-steps li:not(:last-child)::after{
  content:"";position:absolute;right:-32px;top:64px;width:32px;border-top:2px dashed rgba(15,21,18,.18);
}
.step-num{
  display:block;font-size:38px;font-weight:800;line-height:1;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:-.03em;
}
.route-steps h3{margin-top:14px;font-size:19px}
.route-steps p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--gray)}

/* ---------- 卡点自查列表 ---------- */
.check-list{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.check-list li{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:20px 26px;border-bottom:1px solid var(--line);
  transition:background .22s var(--ease);
}
.check-list li:last-child{border-bottom:0}
.check-list li:hover{background:var(--stripe)}
.check-list h3{font-size:16.5px}
.check-list p{margin-top:6px;font-size:14px;line-height:1.75;color:var(--gray)}

/* ---------- 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:20px;
  padding:22px 0;font-size:16.5px;font-weight:600;line-height:1.55;color:var(--ink);
  transition:color .22s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--accent)}
.faq-item summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
.sign{position:relative;flex:0 0 auto;width:20px;height:20px;transition:transform .2s var(--ease)}
.sign::before,.sign::after{content:"";position:absolute;left:50%;top:50%;background:var(--ink);border-radius:2px;transform:translate(-50%,-50%)}
.sign::before{width:14px;height:2px}
.sign::after{width:2px;height:14px;transition:opacity .2s var(--ease)}
.faq-item[open] .sign{transform:rotate(45deg)}
.faq-item[open] .sign::before,.faq-item[open] .sign::after{background:var(--accent)}
.faq-body{padding:0 0 24px;max-width:46em;font-size:15px;line-height:1.9;color:var(--gray)}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  background:var(--ink);color:rgba(255,255,255,.88);border-radius:20px;
  padding:48px 52px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:center;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,32px)}
.cta-band p{margin-top:14px;font-size:15px;line-height:1.9;color:rgba(255,255,255,.72);max-width:34em}
.cta-side{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.cta-side span{font-size:13px;color:rgba(255,255,255,.6)}
.cta-notes{
  grid-column:1 / -1;display:flex;flex-wrap:wrap;gap:0;margin-top:34px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.14);
}
.cta-notes li{position:relative;padding:0 22px;font-size:13px;color:rgba(255,255,255,.66)}
.cta-notes li:first-child{padding-left:0}
.cta-notes li + li::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:1px;height:16px;background:rgba(255,255,255,.22)}

/* ---------- 相关入口 ---------- */
.link-card{
  display:flex;flex-direction:column;gap:8px;height:100%;
  padding:24px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease);
}
.link-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--shadow-hover);background:#fff;color:var(--ink)}
.link-card:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.link-card b{font-size:16px;font-weight:700}
.link-card span{font-size:13.5px;line-height:1.75;color:var(--gray)}
.link-card em{font-style:normal;font-size:13px;color:var(--accent);font-weight:600;margin-top:auto}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.88);padding:72px 0 28px;margin-top:0;border-top:1px solid rgba(255,255,255,.1)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff}
.footer-brand .brand-mark i{background:#fff}
.footer-brand .brand-mark i:nth-child(2){background:var(--accent)}
.footer-brand .brand-text{color:#fff}
.footer-about{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:22em}
.footer-col h3{font-size:14px;font-weight:700;letter-spacing:.06em;color:rgba(255,255,255,.55);margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.88)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.78)}
.footer-bottom a:hover{color:var(--accent)}
.back-top{
  position:fixed;right:24px;bottom:24px;z-index:90;
  width:48px;height:48px;border-radius:999px;background:var(--ink);color:var(--paper);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;
  box-shadow:0 12px 28px -16px rgba(15,21,18,.9);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s var(--ease),background .22s var(--ease);
}
.back-top.is-visible{opacity:1;visibility:visible;transform:none}
.back-top:hover{background:var(--accent);color:#fff}
.back-top:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* ---------- 入场 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media(max-width:1080px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:40px}
  .hero-figure img{aspect-ratio:16/10}
  .cta-band{grid-template-columns:minmax(0,1fr);gap:28px;padding:40px}
}
@media(max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .route-steps{grid-template-columns:minmax(0,1fr);gap:20px}
  .route-steps li:not(:last-child)::after{display:none}
}
@media(max-width:767px){
  :root{--nav-h:64px}
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
  .page-hero{padding-top:calc(var(--nav-h) + 44px);padding-bottom:52px}
  .hero-lead{font-size:16.5px}
  .hero-meta li{padding:0 14px}
  .hero-meta li:first-child{padding-left:0}
  .filter-inner{padding-top:12px;padding-bottom:12px;gap:12px}
  .filter-note{display:none}
  .flow-body{padding:20px 20px 22px}
  .check-list li{padding:18px 20px;align-items:flex-start;flex-direction:column;gap:12px}
  .check-list li .ui-badge{align-self:flex-start}
  .cta-band{padding:32px 24px;border-radius:16px}
  .cta-notes li{padding:0 14px;font-size:12.5px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .back-top{right:16px;bottom:16px;width:44px;height:44px}
  .section-head{margin-bottom:32px}
}
@media(max-width:520px){
  .nav-actions .icon-btn{display:none}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .ui-btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .hero-meta{flex-direction:column;align-items:flex-start;gap:12px}
  .hero-meta li{padding:0}
  .hero-meta li + li::before{display:none}
  .footer-brand .brand-text{font-size:14px}
}
@media(prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
  .ui-card:hover,.link-card:hover,.route-steps li:hover{transform:none}
  .flow-card:hover .flow-media img{transform:none}
}

/* roulang page: category4 */
:root{
  --ink:#0F1512;
  --ink-soft:#5F6663;
  --paper:#F4F1EA;
  --card:#FBFAF7;
  --stripe:#F7F4EE;
  --accent:#E4552B;
  --accent-soft:#FBE7DF;
  --pine:#1F5B49;
  --pine-soft:#E2EDE8;
  --line:rgba(15,21,18,.1);
  --line-strong:rgba(15,21,18,.2);
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(15,21,18,.05);
  --shadow-2:0 14px 32px -14px rgba(15,21,18,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1240px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.9;color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:var(--accent);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--ink);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);line-height:1.25;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
svg{display:block;}

h1,h2,h3{font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;}

.grid-container{
  max-width:var(--container);
  width:100%;
  margin-left:auto;margin-right:auto;
  padding-left:32px;padding-right:32px;
}
.grid-x{margin-left:-16px;margin-right:-16px;}
.grid-x > .cell{padding-left:16px;padding-right:16px;}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:999;
  background:var(--ink);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;
  font-size:14px;
}
.skip-link:focus{left:0;color:#fff;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  height:76px;
  background:rgba(255,255,255,.06);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.18);
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-stuck{
  background:rgba(244,241,234,.92);
  border-bottom:1px solid rgba(15,21,18,.12);
  box-shadow:0 8px 24px -18px rgba(15,21,18,.5);
}
.nav-inner{
  height:100%;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  max-width:var(--container);
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto;}
.brand:hover{color:var(--ink);}
.brand-mark{display:inline-flex;gap:3px;align-items:flex-end;height:22px;}
.brand-mark i{display:block;width:6px;border-radius:2px;background:var(--accent);}
.brand-mark i:nth-child(1){height:12px;background:var(--ink);}
.brand-mark i:nth-child(2){height:18px;background:var(--accent);}
.brand-mark i:nth-child(3){height:22px;background:var(--pine);}
.brand-text{display:flex;flex-direction:column;line-height:1.1;font-size:15px;font-weight:800;letter-spacing:.01em;}
.brand-text span:first-child{font-size:15px;}
.brand-text span:last-child{font-size:12px;font-weight:600;color:var(--ink-soft);letter-spacing:.12em;}

.nav-links{display:flex;align-items:center;gap:28px;margin:0 auto;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink);
  padding:6px 0;line-height:1.4;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--accent);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}

.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink);border:1px solid rgba(15,21,18,.16);
  background:rgba(255,255,255,.35);
  transition:all .24s var(--ease);
}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.nav-cta{padding:11px 22px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(15,21,18,.16);position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;width:20px;height:2px;background:var(--ink);border-radius:2px;
  transform:translateX(-50%);transition:transform .24s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}
body.nav-open .nav-toggle span{background:transparent;}
body.nav-open .nav-toggle span::before{transform:rotate(45deg);top:0;}
body.nav-open .nav-toggle span::after{transform:rotate(-45deg);top:0;}

/* ============ 通用按钮 ============ */
.ui-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1.2;text-align:center;
  border:1px solid transparent;cursor:pointer;
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease),filter .24s var(--ease);
}
.ui-btn--primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px -14px rgba(228,85,43,.9);}
.ui-btn--primary:hover{filter:brightness(.92);transform:translateY(-1px);color:#fff;box-shadow:0 14px 28px -16px rgba(228,85,43,.95);}
.ui-btn--ghost{background:transparent;color:var(--ink);border-color:rgba(15,21,18,.35);}
.ui-btn--ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.ui-btn--invert{background:var(--paper);color:var(--ink);}
.ui-btn--invert:hover{background:#fff;color:var(--ink);transform:translateY(-1px);}
.ui-btn--block{display:flex;width:100%;}
.ui-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

.ui-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;letter-spacing:.06em;
  background:rgba(15,21,18,.07);color:var(--ink-soft);
  line-height:1.6;
}
.ui-badge--rec{background:var(--accent-soft);color:#B33E1B;}
.ui-badge--pine{background:var(--pine-soft);color:var(--pine);}

/* ============ 页面头 ============ */
.page-head{
  position:relative;
  padding-top:132px;
  padding-bottom:72px;
  background:
    radial-gradient(1200px 480px at 82% -12%, rgba(31,91,73,.14), transparent 62%),
    radial-gradient(900px 420px at 6% 4%, rgba(228,85,43,.10), transparent 60%),
    var(--paper);
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-soft);margin-bottom:26px;
}
.breadcrumb a{color:var(--ink-soft);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--ink);font-weight:700;}

.head-grid{display:flex;align-items:flex-start;gap:48px;flex-wrap:wrap;}
.head-main{flex:1 1 520px;min-width:0;}
.head-aside{flex:0 1 380px;min-width:0;}
.head-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--pine);
  text-transform:uppercase;margin-bottom:18px;
}
.head-eyebrow::before{content:"";width:22px;height:2px;background:var(--pine);border-radius:2px;}
h1{
  font-size:clamp(38px,6.2vw,76px);
  font-weight:800;letter-spacing:-.025em;line-height:1.12;
  margin-bottom:24px;
}
h1 .h1-sub{display:block;font-size:.44em;font-weight:600;letter-spacing:.02em;color:var(--ink-soft);margin-top:14px;line-height:1.5;}
.head-lead{
  max-width:34em;font-size:17px;line-height:1.9;color:var(--ink-soft);
}
.head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.head-meta{
  display:flex;flex-wrap:wrap;gap:20px;margin-top:34px;
  font-size:13px;color:var(--ink-soft);
}
.head-meta span{display:inline-flex;align-items:center;gap:7px;}
.head-meta span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--pine);}
.head-meta span:nth-child(2)::before{background:var(--accent);}
.head-meta span:nth-child(3)::before{background:var(--ink-soft);}

.head-figure{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--stripe);
  box-shadow:var(--shadow-2);
}
.head-figure img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;}
.head-figure figcaption{
  position:absolute;left:16px;bottom:16px;right:16px;
  background:rgba(15,21,18,.72);color:#F4F1EA;
  font-size:12px;letter-spacing:.04em;line-height:1.6;
  padding:8px 12px;border-radius:var(--radius-pill);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}

/* 等级对照条 */
.tier-bar{
  display:grid;grid-template-columns:1fr 1.12fr 1.28fr 1.55fr;
  gap:12px;margin-top:56px;
}
.tier{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:18px 20px;display:flex;flex-direction:column;gap:4px;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.tier:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-2);}
.tier__name{font-size:16px;font-weight:700;}
.tier__desc{font-size:13px;color:var(--ink-soft);}
.tier.is-current{background:var(--accent);border-color:var(--accent);}
.tier.is-current .tier__name{color:#fff;}
.tier.is-current .tier__desc{color:rgba(255,255,255,.86);}

/* ============ 板块 ============ */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section-head{max-width:620px;margin-bottom:48px;}
.section-head h2{font-size:clamp(24px,3vw,38px);line-height:1.25;margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--ink-soft);}

/* ============ 权益矩阵 ============ */
.matrix-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.matrix-head{
  display:grid;grid-template-columns:minmax(0,1fr) repeat(4,76px);
  align-items:center;min-height:56px;padding:0 20px;
  background:var(--ink);color:rgba(255,255,255,.86);
  font-size:13px;font-weight:600;letter-spacing:.04em;
}
.matrix-head span:not(:first-child){text-align:center;}
.matrix-head span:nth-child(4){color:#F0B49C;}

.matrix-group + .matrix-group{border-top:1px solid var(--line);}
.matrix-group__title{
  padding:18px 20px 12px;font-size:14px;font-weight:700;letter-spacing:.1em;
  color:var(--pine);background:var(--stripe);
  display:flex;align-items:center;gap:10px;
}
.matrix-group__title::before{content:"";width:3px;height:14px;background:var(--pine);border-radius:2px;}

.matrix-row{
  display:grid;grid-template-columns:minmax(0,1fr) repeat(4,76px);
  align-items:center;min-height:52px;padding:0 20px;
  border-top:1px solid var(--line);font-size:15px;
  transition:background .2s var(--ease);
}
.matrix-row:nth-child(even){background:var(--stripe);}
.matrix-row:hover{background:#F1EDE4;}
.matrix-row__name{color:var(--ink);padding-right:12px;}
.matrix-row__marks{display:contents;}
.matrix-row__mark{
  text-align:center;font-size:15px;font-weight:700;line-height:1;
}
.matrix-row__mark.is-yes{color:var(--pine);}
.matrix-row__mark.is-no{color:rgba(15,21,18,.28);font-weight:400;}

/* 价格卡 */
.price-card{
  position:sticky;top:100px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow-1);
}
.price-card__top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;}
.price-card h3{font-size:20px;}
.price-card__amount{font-size:40px;font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1;margin:8px 0 6px;}
.price-card__amount span{font-size:14px;font-weight:600;color:var(--ink-soft);letter-spacing:0;margin-left:4px;}
.price-card__note{font-size:13px;color:var(--ink-soft);line-height:1.75;}
.price-card .ui-list{margin:22px 0 24px;display:flex;flex-direction:column;gap:12px;}
.ui-list li{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.7;color:var(--ink);
}
.ui-list li::before{
  content:"";flex:0 0 auto;width:16px;height:16px;margin-top:4px;border-radius:50%;
  background:var(--pine-soft);
  box-shadow:inset 0 0 0 4px var(--pine-soft);
  position:relative;
  background-image:linear-gradient(var(--pine),var(--pine));
  background-size:8px 2px;background-repeat:no-repeat;background-position:center;
}
.price-card__foot{font-size:12px;color:var(--ink-soft);margin-top:14px;line-height:1.7;}

/* ============ 编号说明 ============ */
.notes{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.note{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.note:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-2);}
.note__num{
  display:block;font-size:34px;font-weight:800;line-height:1;letter-spacing:-.03em;
  color:var(--accent);font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.note h3{font-size:18px;margin-bottom:10px;}
.note p{font-size:14px;color:var(--ink-soft);line-height:1.85;}

/* ============ 适合人群 ============ */
.fit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.fit{
  border-radius:var(--radius-lg);border:1px solid var(--line);
  padding:32px 28px;background:var(--card);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.fit:nth-child(2){background:var(--stripe);margin-top:28px;}
.fit:nth-child(3){background:var(--ink);border-color:var(--ink);}
.fit:nth-child(3) h3,.fit:nth-child(3) .fit__tag{color:#F4F1EA;}
.fit:nth-child(3) p{color:rgba(244,241,234,.78);}
.fit:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.fit__tag{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--pine);margin-bottom:14px;display:block;}
.fit h3{font-size:19px;margin-bottom:12px;}
.fit p{font-size:14px;color:var(--ink-soft);line-height:1.85;}

/* ============ FAQ ============ */
.faq-list{max-width:860px;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:24px;
  padding:22px 4px;font-size:16px;font-weight:600;color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--accent);}
.faq-item summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}
.faq-icon{
  position:relative;flex:0 0 auto;width:20px;height:20px;border-radius:50%;
  border:1px solid rgba(15,21,18,.24);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink);
  transform:translate(-50%,-50%);transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.faq-icon::before{width:9px;height:1.6px;}
.faq-icon::after{width:1.6px;height:9px;}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-item[open] summary{color:var(--accent);}
.faq-body{padding:0 4px 24px;font-size:15px;line-height:1.85;color:var(--ink-soft);max-width:40em;}

/* ============ CTA ============ */
.cta-band{
  background:var(--ink);border-radius:20px;
  padding:52px 56px;color:#F4F1EA;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-band h2{color:#F4F1EA;font-size:clamp(24px,3vw,34px);margin-bottom:12px;}
.cta-band p{color:rgba(244,241,234,.76);font-size:15px;max-width:34em;}
.cta-band__actions{display:flex;flex-direction:column;gap:10px;align-items:flex-start;}
.cta-band__price{font-size:13px;color:rgba(244,241,234,.62);letter-spacing:.02em;}
.cta-band__guards{
  width:100%;display:flex;flex-wrap:wrap;gap:0;margin-top:36px;padding-top:24px;
  border-top:1px solid rgba(244,241,234,.16);
}
.cta-band__guards span{
  font-size:13px;color:rgba(244,241,234,.7);padding:0 24px;
  border-left:1px solid rgba(244,241,234,.16);
}
.cta-band__guards span:first-child{border-left:0;padding-left:0;}

/* ============ 相关入口 ============ */
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.related-card{
  display:flex;flex-direction:column;gap:8px;
  padding:22px;border-radius:var(--radius-md);
  border:1px solid var(--line);background:var(--card);
  color:var(--ink);font-weight:600;font-size:15px;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease);
}
.related-card small{font-size:12px;font-weight:500;color:var(--ink-soft);letter-spacing:.02em;}
.related-card .arrow{font-size:13px;color:var(--accent);font-weight:700;margin-top:4px;}
.related-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-2);background:#fff;color:var(--ink);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);color:rgba(255,255,255,.88);
  border-top:1px solid rgba(255,255,255,.08);
  padding:72px 0 28px;margin-top:96px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text span:first-child{color:#fff;}
.footer-brand .brand-text span:last-child{color:rgba(255,255,255,.6);}
.footer-about{font-size:13px;line-height:1.9;color:rgba(255,255,255,.62);max-width:22em;}
.footer-col h3{font-size:13px;letter-spacing:.12em;color:rgba(255,255,255,.5);font-weight:700;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.86);}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;
  margin-top:56px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);
  font-size:12px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:var(--accent);}

/* ============ 入场动画 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .grid-container{padding-left:24px;padding-right:24px;}
  .nav-links{gap:20px;}
  .nav-link{font-size:14px;}
  .page-head{padding-top:118px;padding-bottom:56px;}
  .section{padding:76px 0;}
  .head-grid{gap:36px;}
  .head-aside{flex:1 1 100%;}
  .head-figure{margin-top:8px;}
  .price-card{position:static;margin-top:28px;}
  .notes{grid-template-columns:1fr;gap:16px;}
  .fit-grid{grid-template-columns:1fr;gap:16px;}
  .fit:nth-child(2){margin-top:0;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{padding:40px 36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .site-header{height:64px;}
  .nav-links{
    position:fixed;inset:64px 0 0 0;
    background:rgba(244,241,234,.97);
    -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
    flex-direction:column;align-items:flex-start;justify-content:flex-start;
    gap:0;padding:24px 24px 40px;
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:opacity .24s var(--ease),transform .24s var(--ease);
    overflow-y:auto;
  }
  body.nav-open .nav-links{opacity:1;transform:none;pointer-events:auto;}
  .nav-link{width:100%;padding:18px 0;font-size:18px;border-bottom:1px solid rgba(15,21,18,.08);}
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--accent);}
  .nav-toggle{display:block;}
  .nav-cta{display:none;}
  .icon-btn{width:38px;height:38px;}
  .tier-bar{grid-template-columns:repeat(2,1fr);}
  .matrix-head{display:none;}
  .matrix-row{grid-template-columns:1fr;gap:10px;padding:16px 18px;min-height:0;}
  .matrix-row__marks{display:flex;flex-wrap:wrap;gap:8px;}
  .matrix-row__mark{
    display:inline-flex;align-items:center;gap:6px;
    font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--radius-pill);
    background:rgba(15,21,18,.05);
  }
  .matrix-row__mark::before{content:attr(data-tier);font-weight:600;color:var(--ink-soft);}
  .matrix-row__mark.is-yes{background:var(--pine-soft);color:var(--pine);}
  .matrix-row__mark.is-no{background:rgba(15,21,18,.04);color:rgba(15,21,18,.35);}
  .cta-band{padding:32px 24px;border-radius:16px;}
  .cta-band__guards span{padding:0 16px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .site-footer{padding-top:56px;margin-top:64px;}
}
@media (max-width:520px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .grid-x{margin-left:-10px;margin-right:-10px;}
  .grid-x > .cell{padding-left:10px;padding-right:10px;}
  h1{font-size:clamp(32px,9vw,44px);}
  .head-lead{font-size:15px;}
  .head-actions .ui-btn{width:100%;}
  .tier-bar{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band__guards{flex-direction:column;gap:10px;}
  .cta-band__guards span{border-left:0;padding-left:0;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .ui-btn{width:100%;}
  .section{padding:56px 0;}
  .page-head{padding-top:104px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none;}
}