/* roulang page: index */
:root{
  --ink-900:#14120F;
  --ink-700:#2C2823;
  --ink-500:#6B655B;
  --line:#E5E0D8;
  --paper:#F7F5F1;
  --card:#FFFFFF;
  --brand:#FF6A1A;
  --brand-soft:#FFEDE0;
  --brand-2:#FFB020;
  --teal:#1F6F6B;
  --ok:#2E7D5B;
  --warn:#B7791F;
  --err:#C0392B;
  --sh-1:0 1px 2px rgba(20,18,15,.05);
  --sh-2:0 8px 24px -12px rgba(20,18,15,.16);
  --sh-3:0 16px 40px -20px rgba(20,18,15,.22);
  --r-card:14px;
  --r-btn:8px;
  --r-img:12px;
  --mono:ui-monospace,SFMono-Regular,Consolas,"JetBrains Mono",monospace;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html,body{overflow-x:hidden}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-700);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  letter-spacing:0;
}
img{max-width:100%;display:block;border:0}
a{color:var(--teal);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--brand)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink-900);line-height:1.3;font-weight:700;letter-spacing:0}
p{margin:0}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink-900)}
:focus-visible{outline:2px solid var(--ink-900);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}
@media (max-width:520px){.container{padding:0 16px}}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;background:transparent;color:var(--ink-900);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:#ef5f0e;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-outline{border-color:var(--ink-900);color:var(--ink-900)}
.btn-outline:hover{background:var(--ink-900);color:var(--paper);transform:translateY(-1px)}
.btn-ghost{border-color:rgba(247,245,241,.55);color:var(--paper)}
.btn-ghost:hover{background:rgba(247,245,241,.14);color:#fff;border-color:var(--paper)}
.btn-light{border-color:var(--line);background:var(--card);color:var(--ink-900)}
.btn-light:hover{border-color:var(--ink-900);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-block{width:100%}
.btn i{font-size:13px}
.text-link{color:var(--ink-900);font-weight:600;display:inline-flex;align-items:center;gap:6px;position:relative}
.text-link span.u{position:relative}
.text-link span.u::after{content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--brand);transition:width .2s var(--ease)}
.text-link:hover span.u::after{width:100%}
.text-link i{transition:transform .2s var(--ease)}
.text-link:hover i{transform:translateX(2px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  background:var(--brand-soft);color:#C24E0B;
  font-size:12px;font-weight:600;line-height:1.7;letter-spacing:0;
}
.badge-mono{font-family:var(--mono);letter-spacing:-.01em}
.tag-line{display:flex;flex-wrap:wrap;gap:10px}
.tag-line a{
  display:inline-flex;align-items:center;min-height:36px;padding:0 14px;
  border:1px solid var(--line);border-radius:999px;background:var(--card);
  font-size:14px;color:var(--ink-700);transition:all .18s var(--ease)
}
.tag-line a:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}

/* ---------- 板块头 ---------- */
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.04em;margin-bottom:12px
}
.section-eyebrow::before{content:"";width:18px;height:2px;background:var(--brand);display:block}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.3;margin-bottom:14px}
.section-head h2::before{content:"";display:inline-block;width:3px;height:22px;background:var(--brand);margin-right:12px;vertical-align:-3px;border-radius:2px}
.section-head p{font-size:16px;color:var(--ink-500);line-height:1.8}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--card);border-bottom:1px solid var(--line)}
.site-header.is-stuck{box-shadow:0 6px 20px -16px rgba(20,18,15,.4)}
.brand-row{display:flex;align-items:center;gap:20px;min-height:76px;padding-top:10px;padding-bottom:10px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:38px;height:38px;border-radius:11px;background:var(--ink-900);
  color:var(--brand);display:grid;place-items:center;
  font-size:16px;font-weight:700;font-family:var(--mono)
}
.logo-text{font-size:19px;font-weight:700;color:var(--ink-900);letter-spacing:0;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--brand)}
.search-form{position:relative;display:flex;align-items:center;margin-left:auto;max-width:340px;width:100%}
.search-form input[type="search"]{
  width:100%;height:42px;padding:0 84px 0 16px;border:1px solid var(--line);
  border-radius:var(--r-btn);background:var(--paper);transition:border-color .18s var(--ease),box-shadow .18s var(--ease)
}
.search-form input[type="search"]::placeholder{color:#9A938A}
.search-form input[type="search"]:focus{outline:none;border-color:var(--ink-900);box-shadow:0 0 0 3px rgba(255,106,26,.15);background:var(--card)}
.search-form button{
  position:absolute;right:4px;top:4px;height:34px;padding:0 14px;border:0;border-radius:6px;
  background:var(--ink-900);color:var(--paper);font-size:13px;font-weight:600;cursor:pointer;transition:background .18s var(--ease)
}
.search-form button:hover{background:var(--brand)}
.brand-cta{flex:0 0 auto}
.nav-toggle{
  display:none;width:46px;height:46px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--card);color:var(--ink-900);cursor:pointer;align-items:center;justify-content:center;
  transition:border-color .18s var(--ease),color .18s var(--ease)
}
.nav-toggle:hover{border-color:var(--ink-900);color:var(--brand)}
.channel-row{background:var(--paper);border-top:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;gap:8px;min-height:50px}
.channel-list{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.channel-list a{
  display:inline-flex;align-items:center;min-height:48px;padding:0 14px;
  color:var(--ink-500);font-size:15px;font-weight:500;border-bottom:2px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease)
}
.channel-list a:hover{color:var(--ink-900)}
.channel-list a.is-active{color:var(--ink-900);font-weight:600;border-bottom-color:var(--brand)}
.mobile-panel{display:none;border-top:1px solid var(--line);background:var(--card);padding:12px 0 20px}
.mobile-panel a{
  display:flex;align-items:center;min-height:48px;padding:0 4px;font-size:16px;
  color:var(--ink-700);border-bottom:1px solid var(--line)
}
.mobile-panel a.is-active{color:var(--ink-900);font-weight:600;box-shadow:inset 3px 0 0 var(--brand);padding-left:12px}
.mobile-panel .search-form{margin:16px 0 4px;max-width:none}

/* ---------- Hero ---------- */
.hero{
  position:relative;color:var(--paper);
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(20,18,15,.94) 0%,rgba(20,18,15,.82) 46%,rgba(20,18,15,.55) 100%);
}
.hero-inner{position:relative;z-index:2;padding:88px 0 92px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(255,106,26,.16);border:1px solid rgba(255,106,26,.42);
  color:#FFC69B;font-size:13px;font-weight:600;margin-bottom:22px
}
.hero h1{
  color:#fff;font-size:clamp(32px,4.6vw,56px);line-height:1.18;font-weight:700;
  max-width:16em;margin-bottom:20px
}
.hero-sub{font-size:19px;line-height:1.7;color:rgba(247,245,241,.78);max-width:30em;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 28px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:15px;color:rgba(247,245,241,.82)}
.hero-points i{color:var(--brand-2);font-size:13px}
.hero-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-card);padding:14px;backdrop-filter:blur(2px)
}
.hero-card img{border-radius:var(--r-img);width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-card-body{padding:18px 6px 6px}
.hero-card-body h2{color:#fff;font-size:18px;margin-bottom:8px}
.hero-card-body p{font-size:14px;color:rgba(247,245,241,.7);line-height:1.7}
.hero-card-meta{display:flex;gap:16px;margin-top:14px;font-family:var(--mono);font-size:13px;color:var(--brand-2)}

/* ---------- 数据看板 ---------- */
.stats-band{background:var(--paper);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat-item{
  padding:34px 24px;border-right:1px solid var(--line);position:relative;
  transition:background-color .2s var(--ease)
}
.stat-item:last-child{border-right:0}
.stat-item::after{content:"";position:absolute;left:24px;bottom:-1px;width:0;height:2px;background:var(--brand);transition:width .24s var(--ease)}
.stat-item:hover{background:var(--card)}
.stat-item:hover::after{width:44px}
.stat-label{display:block;font-size:13px;color:var(--ink-500);margin-bottom:10px}
.stat-value{display:flex;align-items:baseline;gap:6px}
.stat-num{font-family:var(--mono);font-size:clamp(34px,4vw,48px);font-weight:700;color:var(--ink-900);letter-spacing:-.01em;line-height:1}
.stat-unit{font-size:14px;color:var(--ink-500)}
.stat-note{display:block;font-size:13px;color:var(--ink-500);margin-top:10px}

/* ---------- 编号矩阵 ---------- */
.matrix{display:grid;grid-template-columns:1fr 1fr;gap:0 64px}
.matrix-col:last-child{margin-top:48px}
.matrix-row{
  display:grid;grid-template-columns:56px 1fr;gap:16px;align-items:start;
  padding:26px 20px 26px 0;border-bottom:1px solid var(--line);
  position:relative;transition:background-color .2s var(--ease)
}
.matrix-row::before{content:"";position:absolute;left:-14px;top:18px;bottom:18px;width:3px;border-radius:2px;background:var(--brand);opacity:0;transition:opacity .2s var(--ease)}
.matrix-row:hover{background:var(--card)}
.matrix-row:hover::before{opacity:1}
.matrix-num{font-family:var(--mono);font-size:20px;font-weight:700;color:var(--brand);padding-top:2px}
.matrix-body h3{font-size:20px;margin-bottom:8px;line-height:1.4}
.matrix-body p{font-size:15px;color:var(--ink-500);line-height:1.75;max-width:34em}

/* ---------- 左右对比 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.compare-col{padding:34px 32px}
.compare-col:first-child{border-right:1px solid var(--line)}
.compare-col h3{font-size:18px;margin-bottom:6px}
.compare-col > p{font-size:14px;color:var(--ink-500);margin-bottom:24px}
.compare-item{margin-bottom:22px}
.compare-item-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}
.compare-label{font-size:14px;color:var(--ink-700)}
.compare-val{font-family:var(--mono);font-size:13px;color:var(--ink-500)}
.bar{height:8px;border-radius:999px;background:var(--line);overflow:hidden}
.bar span{display:block;height:100%;width:0;border-radius:999px;transition:width .6s var(--ease)}
.compare-col.bad .bar span{background:var(--ink-500)}
.compare-col.good .bar span{background:var(--brand-2)}
.compare-foot{margin-top:26px;padding-top:20px;border-top:1px solid var(--line);font-size:14px;color:var(--ink-500)}

/* ---------- 最新信息（CMS） ---------- */
.news-band{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);padding:20px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--ink-900)}
.news-thumb{display:block;border-radius:var(--r-img);overflow:hidden;margin-bottom:16px;background:#EFEBE4;border:1px solid var(--line)}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .24s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.02)}
.news-title{font-size:19px;line-height:1.45;margin-bottom:10px;color:var(--ink-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover .news-title{color:var(--brand)}
.news-excerpt{font-size:14px;color:var(--ink-500);line-height:1.7;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:14px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.news-time{font-family:var(--mono);font-size:13px;color:var(--ink-500)}
.news-more{margin-left:auto;display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--ink-900)}
.news-card:hover .news-more{color:var(--brand)}
.news-card:hover .news-more i{transform:translateX(2px)}
.news-more i{transition:transform .2s var(--ease);font-size:12px}
.news-empty{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1px dashed var(--line);border-radius:var(--r-card);background:var(--paper);text-align:center;padding:32px
}
.empty-mark{width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#EFEBE4;position:relative}
.empty-mark::after{content:"";position:absolute;left:50%;top:50%;width:18px;height:1px;background:var(--brand);transform:translate(-50%,-50%)}
.news-empty p{font-size:15px;color:var(--ink-500)}

/* ---------- 步骤指引 ---------- */
.guide-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:56px;align-items:center}
.guide-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2);background:#EFEBE4}
.guide-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.guide-steps{counter-reset:step}
.guide-step{
  display:grid;grid-template-columns:44px 1fr;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)
}
.guide-step:first-child{padding-top:0}
.guide-step:last-child{border-bottom:0;padding-bottom:0}
.step-no{
  width:44px;height:44px;border-radius:12px;background:var(--brand-soft);color:#C24E0B;
  display:grid;place-items:center;font-family:var(--mono);font-size:15px;font-weight:700
}
.guide-step h3{font-size:18px;margin-bottom:6px}
.guide-step p{font-size:15px;color:var(--ink-500);line-height:1.75}

/* ---------- 用户反馈 ---------- */
.feedback-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feedback-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease)
}
.feedback-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.feedback-card blockquote{margin:0 0 18px;font-size:15px;color:var(--ink-700);line-height:1.8}
.feedback-who{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px solid var(--line)}
.who-avatar{
  width:40px;height:40px;border-radius:50%;background:var(--paper);border:1px solid var(--line);
  display:grid;place-items:center;color:var(--brand);font-weight:700;font-size:14px
}
.who-name{font-size:14px;font-weight:600;color:var(--ink-900)}
.who-role{font-size:13px;color:var(--ink-500)}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;border:0;background:transparent;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.6
}
.faq-q:hover{color:var(--brand)}
.faq-mark{position:relative;flex:0 0 auto;width:20px;height:20px}
.faq-mark::before,.faq-mark::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand);transform:translate(-50%,-50%);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.faq-mark::before{width:14px;height:2px}
.faq-mark::after{width:2px;height:14px}
.faq-item.is-open .faq-mark::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a p{font-size:15px;color:var(--ink-500);line-height:1.8;padding:0 40px 24px 0;max-width:62em}

/* ---------- 转化表单 ---------- */
.cta-band{background:var(--ink-900);color:var(--paper);border-radius:0}
.cta-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}
.cta-copy h2{color:#fff;font-size:clamp(24px,3vw,32px);margin-bottom:16px}
.cta-copy p{color:rgba(247,245,241,.72);font-size:16px;line-height:1.85;max-width:32em}
.trust-list{margin-top:32px;display:grid;gap:14px}
.trust-list li{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:rgba(247,245,241,.78);line-height:1.7}
.trust-list i{color:var(--brand-2);font-size:16px;margin-top:4px}
.cta-form{
  background:var(--card);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-2);border:1px solid var(--line);
  display:grid;grid-template-columns:1fr 1fr;gap:18px
}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;color:var(--ink-500)}
.field input,.field select,.field textarea{
  height:48px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--paper);
  padding:0 14px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease)
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--ink-900);background:var(--card);box-shadow:0 0 0 3px rgba(255,106,26,.15)}
.field.has-error input,.field.has-error select{border-color:var(--err)}
.field-error{font-size:13px;color:var(--err);display:none}
.field.has-error .field-error{display:block}
.check-row{grid-column:1 / -1;display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-500);line-height:1.7}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand)}
.form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.form-note{font-size:13px;color:var(--ink-500)}
.form-feedback{
  grid-column:1 / -1;display:none;align-items:flex-start;gap:10px;
  background:var(--paper);border-left:3px solid var(--brand);border-radius:var(--r-btn);
  padding:14px 16px;font-size:14px;color:var(--ink-700)
}
.form-feedback.is-visible{display:flex}
.form-feedback i{color:var(--ok);margin-top:4px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(247,245,241,.72);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px}
.footer-brand .logo-text{color:var(--paper);font-size:18px}
.footer-brand .logo-text em{color:var(--brand-2)}
.footer-brand p{font-size:14px;line-height:1.8;margin-top:16px;max-width:24em}
.footer-col h4{color:var(--brand-2);font-size:14px;font-weight:600;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(247,245,241,.72)}
.footer-col a:hover{color:var(--brand)}
.footer-col .footer-text{font-size:14px;color:rgba(247,245,241,.62);line-height:1.8}
.footer-time{font-family:var(--mono);font-size:13px;color:var(--brand-2);margin-top:6px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);display:flex;align-items:center;gap:20px;
  padding:22px 0;flex-wrap:wrap
}
.footer-bottom p{font-size:13px;color:rgba(247,245,241,.55)}
.to-top{
  margin-left:auto;width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.22);
  background:transparent;color:var(--paper);display:grid;place-items:center;cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease)
}
.to-top:hover{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- 进场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s var(--ease),transform .4s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding:72px 0}
  .brand-cta{display:none}
  .nav-toggle{display:inline-flex}
  .hero-inner{padding:64px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:clamp(30px,5.4vw,40px)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line)}
  .matrix{grid-template-columns:1fr;gap:0}
  .matrix-col:last-child{margin-top:0}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .guide-grid{grid-template-columns:1fr;gap:36px}
  .feedback-grid{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .search-form{display:none}
  .search-form.in-panel{display:flex}
  .mobile-panel.is-open{display:block}
}
@media (max-width:639px){
  body{font-size:16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat-item{padding:24px 16px}
  .compare{grid-template-columns:1fr}
  .compare-col:first-child{border-right:0;border-bottom:1px solid var(--line)}
  .compare-col{padding:26px 20px}
  .news-grid{grid-template-columns:1fr}
  .cta-form{grid-template-columns:1fr;padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .logo-text{font-size:16px;white-space:normal;line-height:1.35}
  .channel-inner{overflow-x:auto;-webkit-overflow-scrolling:touch;
    -webkit-mask-image:linear-gradient(90deg,#000 88%,transparent 100%);
    mask-image:linear-gradient(90deg,#000 88%,transparent 100%)}
  .channel-list{flex-wrap:nowrap;padding-right:24px}
  .channel-list a{white-space:nowrap}
  .hero-points{gap:10px 18px}
  .faq-q{font-size:16px;padding:18px 0}
  .faq-a p{padding-right:0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --ink-900:#14120F;
  --ink-700:#2C2823;
  --ink-500:#6B655B;
  --line:#E5E0D8;
  --paper:#F7F5F1;
  --card:#FFFFFF;
  --brand:#FF6A1A;
  --brand-soft:#FFEDE0;
  --brand-2:#FFB020;
  --teal:#1F6F6B;
  --ok:#2E7D5B;
  --warn:#B7791F;
  --err:#C0392B;
  --r-card:14px;
  --r-btn:8px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,18,15,.05);
  --sh-2:0 8px 24px -12px rgba(20,18,15,.16);
  --sh-3:0 16px 40px -20px rgba(20,18,15,.22);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Consolas,"JetBrains Mono",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;border:0}
a{color:var(--teal);text-decoration:none}
a:hover{color:var(--brand)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.3;letter-spacing:0}
p{margin:0}
:focus-visible{outline:2px solid var(--ink-900);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink-900);color:#fff;padding:10px 16px;z-index:99}
.skip-link:focus{left:12px;top:12px;color:#fff}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(min-width:1440px){.container{max-width:1280px}}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-0.01em}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all 180ms var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:#f25f12;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;color:var(--ink-900);border-color:var(--ink-900)}
.btn-ghost:hover{background:var(--ink-900);color:#fff}
.btn-light{background:#fff;color:var(--ink-900);border-color:rgba(255,255,255,.35)}
.btn-light:hover{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-sm{min-height:38px;padding:0 14px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink-900);border-bottom:1px solid transparent;transition:all 180ms var(--ease)}
.link-arrow i{transition:transform 180ms var(--ease);font-size:12px}
.link-arrow:hover{color:var(--brand);border-color:var(--brand)}
.link-arrow:hover i{transform:translateX(3px)}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff}
.site-header.is-stuck{box-shadow:0 6px 18px -14px rgba(20,18,15,.35)}
.brand-row{background:#fff;border-bottom:1px solid var(--line)}
.brand-inner{display:flex;align-items:center;gap:20px;min-height:76px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:38px;height:38px;border-radius:10px;background:var(--ink-900);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;
}
.logo-text{font-size:19px;font-weight:700;color:var(--ink-900);letter-spacing:0}
.logo-text em{font-style:normal;color:var(--brand)}
.header-search{
  flex:1 1 auto;max-width:420px;margin-left:auto;
  display:flex;align-items:center;gap:8px;height:44px;padding:0 6px 0 14px;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-btn);
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.header-search i{color:var(--ink-500);font-size:14px}
.header-search input{flex:1;min-width:0;height:40px;border:0;background:transparent;color:var(--ink-900);font-size:14px}
.header-search input::placeholder{color:var(--ink-500)}
.header-search input:focus{outline:none}
.header-search:focus-within{border-color:var(--ink-900);box-shadow:0 0 0 3px rgba(255,106,26,.15)}
.brand-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--ink-900);cursor:pointer;
  align-items:center;justify-content:center;font-size:16px;transition:all 180ms var(--ease);
}
.nav-toggle:hover{border-color:var(--ink-900)}

.channel-row{background:var(--paper);border-bottom:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;min-height:50px}
.channel-list{display:flex;align-items:center;gap:28px;list-style:none}
.channel-list a{
  display:inline-block;padding:13px 0;font-size:15px;color:var(--ink-500);
  border-bottom:2px solid transparent;transition:all 180ms var(--ease);
}
.channel-list a:hover{color:var(--ink-900)}
.channel-list a.is-active{color:var(--ink-900);font-weight:600;border-bottom-color:var(--brand)}

.drawer{
  display:none;background:#fff;border-bottom:1px solid var(--line);
  padding:12px 0 20px;box-shadow:var(--sh-2);
}
.drawer.is-open{display:block}
.drawer-list{list-style:none;margin-bottom:14px}
.drawer-list a{
  display:flex;align-items:center;min-height:48px;padding:0 4px 0 14px;
  font-size:16px;color:var(--ink-700);border-bottom:1px solid var(--line);
}
.drawer-list a.is-active{color:var(--ink-900);font-weight:600;border-left:3px solid var(--brand);padding-left:11px}
.drawer-cta{display:flex;gap:10px;flex-wrap:wrap}

/* ---------- 页面头部 ---------- */
.page-head{
  position:relative;
  background-image:linear-gradient(90deg,rgba(20,18,15,.93) 0%,rgba(20,18,15,.78) 55%,rgba(20,18,15,.6) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  padding:26px 0 44px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(247,245,241,.72);margin-bottom:22px}
.breadcrumb a{color:rgba(247,245,241,.72)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(247,245,241,.4)}
.breadcrumb .current{color:#fff}
.article-head{max-width:860px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:0;
}
.page-head .badge{background:rgba(255,106,26,.18);color:#FFB020}
.article-head h1{
  margin:16px 0 0;color:#fff;font-size:clamp(24px,3.4vw,40px);line-height:1.28;font-weight:700;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin-top:20px;font-size:13.5px;color:rgba(247,245,241,.72)}
.article-meta .mono{color:rgba(247,245,241,.86)}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:rgba(247,245,241,.4)}
.share-btn{
  display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 12px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#fff;
  font-size:13px;cursor:pointer;transition:all 180ms var(--ease);
}
.share-btn:hover{background:rgba(255,106,26,.9);border-color:rgba(255,106,26,.9)}

/* ---------- 文章布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;padding-top:56px;padding-bottom:8px}
.article-main{min-width:0}
.article-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:32px 34px;box-shadow:var(--sh-1)}
.article-body{max-width:760px}
.article-body>*:first-child{margin-top:0}
.article-body h2{
  font-size:26px;margin:48px 0 16px;padding-left:14px;border-left:3px solid var(--brand);line-height:1.35;
}
.article-body h3{font-size:20px;margin:32px 0 12px}
.article-body h4{font-size:17px;margin:24px 0 10px}
.article-body p{font-size:17px;line-height:1.9;color:var(--ink-700);margin-bottom:1.1em}
.article-body ul,.article-body ol{padding-left:22px;margin-bottom:1.1em}
.article-body li{font-size:17px;line-height:1.9;color:var(--ink-700);margin-bottom:8px}
.article-body a{color:var(--teal);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand)}
.article-body strong{color:var(--ink-900);font-weight:600}
.article-body img{border-radius:var(--r-img);display:block;margin:26px auto;box-shadow:var(--sh-1)}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--paper);
  border-left:3px solid var(--line);border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--ink-500);font-size:16px;
}
.article-body blockquote p{font-size:16px;color:var(--ink-500)}
.article-body code{
  font-family:var(--font-mono);font-size:14px;background:var(--paper);
  border:1px solid var(--line);border-radius:6px;padding:2px 6px;
}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body th{background:var(--paper);color:var(--ink-900);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--ink-500);margin-top:-12px;margin-bottom:24px}

.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.tag-row .label{font-size:13px;color:var(--ink-500)}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--paper);border:1px solid var(--line);color:var(--ink-700);font-size:13px;
  transition:all 180ms var(--ease);
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}

.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);background:var(--card);
  padding:56px 24px;text-align:center;
}
.empty-state i{font-size:30px;color:var(--brand);margin-bottom:14px;display:block}
.empty-state p{font-size:16px;color:var(--ink-500);margin-bottom:18px}

/* ---------- 侧栏 ---------- */
.article-side{min-width:0}
.side-sticky{position:sticky;top:112px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:20px;margin-bottom:20px;box-shadow:var(--sh-1)}
.side-title{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:14px}
.side-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--brand)}
.side-list{list-style:none}
.side-list a{display:block;padding:9px 0;font-size:14px;color:var(--ink-500);border-bottom:1px dashed var(--line);transition:all 160ms var(--ease)}
.side-list li:last-child a{border-bottom:0}
.side-list a:hover{color:var(--brand);padding-left:4px}
.side-cta{background:var(--ink-900);border:1px solid rgba(255,255,255,.10);color:rgba(247,245,241,.78)}
.side-cta .side-title{color:#fff}
.side-cta p{font-size:14px;line-height:1.8;color:rgba(247,245,241,.72);margin-bottom:16px}
.side-cta .btn-primary{width:100%}

/* ---------- 相关推荐 ---------- */
.section{padding:64px 0}
.section-head{margin-bottom:28px}
.section-head .eyebrow{font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.04em;margin-bottom:8px;display:block}
.section-head h2{font-size:clamp(22px,2.6vw,30px)}
.section-head p{margin-top:10px;font-size:15px;color:var(--ink-500);max-width:640px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:all 200ms var(--ease);
}
.post-card:hover{border-color:var(--ink-900);transform:translateY(-2px);box-shadow:var(--sh-2)}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--paper)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 220ms var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.02)}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:18px;line-height:1.45}
.post-body p{font-size:14px;line-height:1.7;color:var(--ink-500)}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:6px}
.post-foot .time{font-size:13px;color:var(--ink-500)}
.post-foot .go{font-size:13px;font-weight:600;color:var(--ink-900);display:inline-flex;align-items:center;gap:6px}
.post-card:hover .post-foot .go{color:var(--brand)}
.post-card:hover .post-foot .go i{transform:translateX(3px)}
.post-foot .go i{transition:transform 180ms var(--ease);font-size:11px}

/* ---------- 返回入口 ---------- */
.back-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 28px;box-shadow:var(--sh-1);
}
.back-band h3{font-size:19px;margin-bottom:6px}
.back-band p{font-size:14px;color:var(--ink-500)}
.back-band .acts{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 转化条 ---------- */
.cta-band{
  background:var(--ink-900);border-radius:var(--r-card);border:1px solid rgba(255,255,255,.10);
  padding:40px 40px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band h2{color:#fff;font-size:clamp(20px,2.4vw,28px);line-height:1.35;max-width:620px}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(247,245,241,.72);max-width:620px}
.cta-band .acts{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(247,245,241,.72);margin-top:80px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-brand .logo-text{display:block;font-size:19px;color:#fff;margin-bottom:14px}
.footer-brand .logo-text em{color:var(--brand)}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(247,245,241,.72);max-width:280px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--brand-2);margin-bottom:16px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(247,245,241,.72)}
.footer-col a:hover{color:var(--brand)}
.footer-text{font-size:14px;margin-bottom:8px;color:rgba(247,245,241,.72);word-break:break-all}
.footer-time{font-size:14px;font-family:var(--font-mono);color:rgba(247,245,241,.86)}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid rgba(255,255,255,.10);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13.5px;color:rgba(247,245,241,.6)}
.to-top{
  width:40px;height:40px;border-radius:50%;background:transparent;color:#fff;cursor:pointer;
  border:1px solid rgba(255,255,255,.28);display:inline-flex;align-items:center;justify-content:center;
  transition:all 180ms var(--ease);
}
.to-top:hover{background:var(--brand);border-color:var(--brand)}

/* ---------- 响应式 ---------- */
@media(max-width:1023px){
  .article-layout{grid-template-columns:1fr;gap:32px;padding-top:40px}
  .side-sticky{position:static}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
  .brand-inner{flex-wrap:wrap;padding:12px 0;gap:12px}
  .header-search{order:3;flex:1 1 100%;max-width:none;margin-left:0}
  .brand-actions{margin-left:auto}
  .nav-toggle{display:inline-flex}
  .channel-row{display:none}
}
@media(max-width:767px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .article-card{padding:22px 18px}
  .article-body h2{font-size:22px;margin-top:36px}
  .article-body p,.article-body li{font-size:16px}
  .card-grid{grid-template-columns:1fr;gap:16px}
  .cta-band{padding:28px 22px}
  .back-band{padding:22px 18px}
  .site-footer{margin-top:56px;padding-top:48px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
}
@media(max-width:519px){
  .header-cta{display:none}
  .logo-text{font-size:16px}
  .article-head h1{font-size:22px}
  .page-head{padding:20px 0 34px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --ink-900:#14120F;
  --ink-700:#2C2823;
  --ink-500:#6B655B;
  --line:#E5E0D8;
  --paper:#F7F5F1;
  --card:#FFFFFF;
  --brand:#FF6A1A;
  --brand-soft:#FFEDE0;
  --brand-2:#FFB020;
  --teal:#1F6F6B;
  --ok:#2E7D5B;
  --warn:#B7791F;
  --err:#C0392B;
  --r-card:14px;
  --r-btn:8px;
  --r-img:12px;
  --r-input:8px;
  --sh-1:0 1px 2px rgba(20,18,15,.05);
  --sh-2:0 8px 24px -12px rgba(20,18,15,.16);
  --sh-3:0 16px 40px -20px rgba(20,18,15,.22);
  --ease:cubic-bezier(.2,.7,.2,1);
  --mono:ui-monospace,SFMono-Regular,Consolas,"JetBrains Mono",Menlo,monospace;
  --header-h:126px;
}

/* ===== 基础 reset ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-900);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
h1,h2,h3,h4{line-height:1.3;font-weight:700;letter-spacing:0}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit;margin:0}
button{cursor:pointer;background:none;border:0}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--ink-900);outline-offset:2px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){
  .container{max-width:1280px;padding:0 32px}
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn i{font-size:13px;transition:transform .2s var(--ease)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:#EE5E10;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:hover i{transform:translateX(2px)}
.btn-primary:active{transform:translateY(0);box-shadow:none;background:#DC560D}
.btn-ghost{border-color:var(--ink-900);color:var(--ink-900);background:transparent}
.btn-ghost:hover{background:var(--ink-900);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost:active{transform:translateY(0);box-shadow:none}
.btn-sm{min-height:36px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--teal);
}
.link-arrow span{position:relative}
.link-arrow span::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:1px;
  background:currentColor;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s var(--ease);
}
.link-arrow:hover span::after{transform:scaleX(1)}
.link-arrow i{font-size:12px;transition:transform .2s var(--ease)}
.link-arrow:hover i{transform:translateX(2px)}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px -16px rgba(20,18,15,.5)}
.brand-row{border-bottom:1px solid var(--line)}
.brand-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:76px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.logo-mark{
  width:12px;height:12px;
  border-radius:3px;
  background:var(--brand);
  box-shadow:0 0 0 4px var(--brand-soft);
  flex:0 0 auto;
}
.logo-text{
  font-size:19px;
  font-weight:700;
  color:var(--ink-900);
  letter-spacing:0;
  white-space:nowrap;
}
.logo-text em{
  font-style:normal;
  color:var(--brand);
  font-weight:700;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1 1 auto;
  max-width:460px;
  margin-left:auto;
  padding:4px 4px 4px 14px;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  background:#fff;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search:focus-within{
  border-color:var(--ink-900);
  box-shadow:0 0 0 3px rgba(255,106,26,.15);
}
.nav-search .fa-magnifying-glass{font-size:14px;color:var(--ink-500)}
.nav-search input{
  flex:1 1 auto;
  min-width:0;
  height:34px;
  border:0;
  outline:none;
  background:transparent;
  font-size:14px;
}
.nav-search input::placeholder{color:var(--ink-500)}
.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  font-size:14px;
  font-weight:600;
  color:var(--ink-700);
}
.nav-toggle:hover{border-color:var(--ink-900);color:var(--ink-900)}
.channel-row{background:var(--paper);border-bottom:1px solid var(--line)}
.channel-inner{display:flex;align-items:center}
.channel-list{
  display:flex;
  align-items:center;
  gap:6px;
  overflow-x:auto;
  scrollbar-width:none;
  width:100%;
}
.channel-list::-webkit-scrollbar{display:none}
.channel-list a{
  position:relative;
  display:block;
  padding:14px 14px;
  font-size:15px;
  color:var(--ink-500);
  white-space:nowrap;
  transition:color .2s var(--ease);
}
.channel-list a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:-1px;
  height:2px;
  background:transparent;
  transition:background-color .2s var(--ease);
}
.channel-list a:hover{color:var(--ink-900)}
.channel-list a.is-active{color:var(--ink-900);font-weight:600}
.channel-list a.is-active::after{background:var(--brand)}
.mobile-panel{
  display:none;
  position:absolute;
  top:100%;
  left:0;right:0;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-2);
  max-height:80vh;
  overflow-y:auto;
  z-index:70;
}
.mobile-panel.is-open{display:block}
.mobile-panel .panel-inner{padding:16px 24px 24px}
.mobile-panel .panel-search{
  display:flex;
  align-items:center;
  gap:8px;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  padding:4px 4px 4px 14px;
  margin-bottom:16px;
}
.mobile-panel .panel-search input{
  flex:1 1 auto;min-width:0;height:38px;border:0;background:transparent;outline:none;font-size:15px;
}
.mobile-panel .panel-search:focus-within{border-color:var(--ink-900);box-shadow:0 0 0 3px rgba(255,106,26,.15)}
.mobile-panel .panel-list a{
  display:block;
  min-height:48px;
  line-height:48px;
  padding-left:14px;
  border-left:3px solid transparent;
  font-size:16px;
  color:var(--ink-700);
  border-bottom:1px solid var(--line);
}
.mobile-panel .panel-list a:hover{background:var(--paper)}
.mobile-panel .panel-list a.is-active{
  border-left-color:var(--brand);
  color:var(--ink-900);
  font-weight:600;
}

/* ===== 分类 Hero ===== */
.cat-hero{
  position:relative;
  padding:56px 0 44px;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center right;
  opacity:.09;
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:1}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-500);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--ink-500)}
.breadcrumb a:hover{color:var(--teal);text-decoration:underline}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink-900)}
.cat-hero h1{
  font-size:clamp(27px,4.2vw,44px);
  line-height:1.22;
  font-weight:700;
  max-width:860px;
}
.cat-hero h1 em{
  font-style:normal;
  box-shadow:inset 0 -10px 0 var(--brand-soft);
}
.cat-hero .hero-lead{
  margin-top:18px;
  max-width:660px;
  font-size:17px;
  color:var(--ink-500);
  line-height:1.85;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.hero-tags a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:40px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#fff;
  font-size:14px;
  color:var(--ink-700);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.hero-tags a i{font-size:12px;color:var(--brand)}
.hero-tags a:hover{border-color:var(--ink-900);color:var(--ink-900);transform:translateY(-1px);box-shadow:var(--sh-1)}

/* 粘性锚点行 */
.anchor-bar{
  position:sticky;
  top:var(--header-h);
  z-index:40;
  background:#fff;
  border-bottom:1px solid var(--line);
}
.anchor-inner{
  display:flex;
  align-items:center;
  gap:4px;
  overflow-x:auto;
  scrollbar-width:none;
}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-inner a{
  padding:14px 14px;
  font-size:14px;
  color:var(--ink-500);
  white-space:nowrap;
  border-bottom:2px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.anchor-inner a:hover{color:var(--ink-900);border-bottom-color:var(--brand)}
.anchor-inner .anchor-hint{
  margin-left:auto;
  padding:14px 0 14px 14px;
  font-family:var(--mono);
  font-size:12px;
  color:var(--ink-500);
  white-space:nowrap;
}

/* ===== 板块 ===== */
.section{padding:96px 0}
.section--tight{padding:64px 0}
.section--paper{background:var(--paper)}
.section--white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-eyebrow{
  display:inline-block;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--brand);
  margin-bottom:12px;
}
.sec-title{
  position:relative;
  padding-left:16px;
  font-size:clamp(23px,2.8vw,32px);
  line-height:1.3;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;top:.18em;bottom:.18em;
  width:3px;
  border-radius:2px;
  background:var(--brand);
}
.sec-desc{
  margin-top:14px;
  font-size:16px;
  color:var(--ink-500);
  line-height:1.85;
}
.sec-head--split{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  max-width:none;
}
.sec-head--split .sec-head-text{max-width:700px}

/* ===== 横条步骤列表 ===== */
.step-list{
  border-top:1px solid var(--line);
}
.step-row{
  position:relative;
  display:grid;
  grid-template-columns:24px minmax(0,1fr) 28px;
  align-items:center;
  gap:24px;
  padding:26px 20px 26px 24px;
  border-bottom:1px solid var(--line);
  transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.step-row::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:2px;
  background:var(--brand);
  opacity:0;
  transition:opacity .2s var(--ease);
}
.step-row:hover{background:var(--card)}
.step-row:hover::before{opacity:1}
.step-num{
  font-family:var(--mono);
  font-size:15px;
  font-weight:700;
  color:var(--brand);
  letter-spacing:-.01em;
}
.step-body h3{
  font-size:19px;
  font-weight:600;
  line-height:1.4;
}
.step-body p{
  margin-top:6px;
  font-size:15px;
  color:var(--ink-500);
  line-height:1.7;
}
.step-go{
  display:flex;
  align-items:center;
  justify-content:center;
  width:28px;height:28px;
  border:1px solid var(--line);
  border-radius:50%;
  color:var(--ink-500);
  font-size:12px;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),background-color .2s var(--ease);
}
.step-row:hover .step-go{
  border-color:var(--brand);
  background:var(--brand-soft);
  color:var(--brand);
  transform:translateX(2px);
}

/* ===== 环境准备 ===== */
.prepare-grid{margin-top:8px}
.prepare-text h2{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.3;
  padding-left:16px;
  position:relative;
}
.prepare-text h2::before{
  content:"";
  position:absolute;
  left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;background:var(--brand);
}
.prepare-text > p{
  margin-top:16px;
  color:var(--ink-500);
  font-size:16px;
}
.prepare-figure{
  margin-bottom:24px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--card);
}
.prepare-figure img{width:100%;border-radius:0;aspect-ratio:16/9;object-fit:cover}
.check-list{margin-top:24px}
.check-list li{
  display:flex;
  gap:14px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
}
.check-list li:first-child{border-top:1px solid var(--line)}
.check-list i{
  flex:0 0 auto;
  margin-top:6px;
  width:20px;height:20px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:11px;
}
.check-list strong{
  display:block;
  font-size:16px;
  font-weight:600;
}
.check-list span{
  display:block;
  margin-top:2px;
  font-size:14.5px;
  color:var(--ink-500);
  line-height:1.7;
}

/* ===== 对比 ===== */
.compare-wrap{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--card);
  overflow:hidden;
}
.compare-col{padding:28px 28px 32px}
.compare-col--left{border-right:1px solid var(--line)}
.compare-col h3{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:600;
}
.compare-col h3 .dot{
  width:8px;height:8px;border-radius:50%;background:var(--ink-500);
}
.compare-col--right h3 .dot{background:var(--brand)}
.compare-note{
  margin-top:8px;
  font-size:14px;
  color:var(--ink-500);
}
.compare-col .col-note{
  margin-top:10px;
  font-size:14.5px;
  color:var(--ink-500);
  line-height:1.7;
}
.meter-list{margin-top:22px}
.meter{
  display:grid;
  grid-template-columns:104px minmax(0,1fr) 34px;
  align-items:center;
  gap:12px;
  padding:12px 0;
  border-top:1px solid var(--line);
}
.meter-list .meter:last-child{border-bottom:1px solid var(--line)}
.meter-label{font-size:12px;color:var(--ink-500);line-height:1.4}
.meter-track{
  height:8px;
  border-radius:999px;
  background:var(--line);
  overflow:hidden;
}
.meter-fill{
  display:block;
  width:0;
  height:100%;
  border-radius:999px;
  background:var(--ink-500);
  transition:width .6s var(--ease);
}
.compare-col--right .meter-fill{background:var(--brand-2)}
.meter.is-in .meter-fill{width:var(--w,0)}
.meter-val{
  font-family:var(--mono);
  font-size:13px;
  color:var(--ink-700);
  text-align:right;
  letter-spacing:-.01em;
}
.w-5{--w:5%}.w-10{--w:10%}.w-30{--w:30%}.w-40{--w:40%}
.w-55{--w:55%}.w-65{--w:65%}.w-78{--w:78%}.w-85{--w:85%}

/* ===== 时间线 ===== */
.timeline{margin-top:8px}
.timeline-step{
  position:relative;
  padding:24px 22px 26px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.timeline-step:hover{
  border-color:var(--ink-900);
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
}
.tl-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:38px;
  height:26px;
  padding:0 10px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-family:var(--mono);
  font-size:13px;
  font-weight:700;
  margin-bottom:14px;
}
.timeline-step h3{font-size:17px;font-weight:600}
.timeline-step p{
  margin-top:8px;
  font-size:14.5px;
  color:var(--ink-500);
  line-height:1.7;
}

/* ===== FAQ ===== */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  width:100%;
  padding:20px 0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--ink-900);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-ico{
  position:relative;
  flex:0 0 auto;
  width:18px;height:18px;
  transition:transform .2s var(--ease);
}
.faq-ico::before,
.faq-ico::after{
  content:"";
  position:absolute;
  background:var(--brand);
  border-radius:2px;
  transition:opacity .2s var(--ease);
}
.faq-ico::before{left:0;right:0;top:8px;height:2px}
.faq-ico::after{top:0;bottom:0;left:8px;width:2px}
.faq-item.is-open .faq-ico{transform:rotate(90deg)}
.faq-item.is-open .faq-ico::after{opacity:0}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s var(--ease);
}
.faq-a-inner{padding:0 40px 20px 0}
.faq-a-inner p{
  font-size:15.5px;
  line-height:1.8;
  color:var(--ink-500);
}
.faq-a-inner a{color:var(--teal);text-decoration:underline}

/* ===== CTA / 表单 ===== */
.cta-band{
  background:#fff;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-grid{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.form-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:28px;
}
.form-card h2{font-size:22px;font-weight:700}
.form-card .form-hint{
  margin-top:10px;
  font-size:14.5px;
  color:var(--ink-500);
  line-height:1.75;
}
.lead-form{
  margin-top:24px;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px 20px;
}
.field{display:flex;flex-direction:column;gap:8px}
.field--full{grid-column:1 / -1}
.field label{
  font-size:13px;
  color:var(--ink-500);
}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  background:#fff;
  font-size:15px;
  color:var(--ink-900);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.field select{
  appearance:none;
  -webkit-appearance:none;
  padding-right:40px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23FF6A1A' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 16px center;
}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--ink-900);
  box-shadow:0 0 0 3px rgba(255,106,26,.15);
}
.field input::placeholder,
.field textarea::placeholder{color:#A9A29A}
.consent{
  grid-column:1 / -1;
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13.5px;
  color:var(--ink-500);
  line-height:1.7;
}
.consent input{
  flex:0 0 auto;
  width:18px;height:18px;
  margin-top:5px;
  accent-color:var(--brand);
}
.form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.form-note{
  display:none;
  grid-column:1 / -1;
  padding:14px 16px;
  border-left:3px solid var(--brand);
  border-radius:6px;
  background:var(--paper);
  font-size:14.5px;
  color:var(--ink-700);
}
.form-note.is-visible{display:block}
.trust-col{display:flex;flex-direction:column;gap:18px}
.trust-col h3{
  font-size:16px;
  font-weight:600;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
}
.trust-item{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.trust-item:last-child{border-bottom:0;padding-bottom:0}
.trust-item i{
  flex:0 0 auto;
  width:36px;height:36px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:15px;
}
.trust-item strong{display:block;font-size:15px;font-weight:600}
.trust-item span{
  display:block;
  margin-top:2px;
  font-size:13.5px;
  color:var(--ink-500);
  line-height:1.7;
}

/* ===== 分类入口卡 ===== */
.cat-cards{margin-top:8px}
.cat-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.cat-card:hover{
  border-color:var(--ink-900);
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
}
.cat-card .thumb{overflow:hidden}
.cat-card .thumb img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:0;
  transition:transform .2s var(--ease);
}
.cat-card:hover .thumb img{transform:scale(1.02)}
.cat-card .card-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto}
.badge{
  align-self:flex-start;
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  margin-bottom:12px;
}
.badge--ink{background:#EFEBE4;color:var(--ink-700)}
.cat-card h3{font-size:18px;font-weight:600;line-height:1.4}
.cat-card p{
  margin-top:10px;
  font-size:14.5px;
  color:var(--ink-500);
  line-height:1.7;
  flex:1 1 auto;
}
.cat-card .card-foot{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.cat-card .card-foot .time{
  font-family:var(--mono);
  font-size:12.5px;
  color:var(--ink-500);
}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--ink-900);
  color:var(--paper);
  padding:64px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.10);
}
.footer-brand .logo-text{color:var(--paper);font-size:18px}
.footer-brand .logo-text em{color:var(--brand)}
.footer-brand p{
  margin-top:14px;
  font-size:14px;
  line-height:1.8;
  color:rgba(247,245,241,.72);
  max-width:280px;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--brand-2);
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px}
.footer-col a{
  font-size:14px;
  color:rgba(247,245,241,.72);
  transition:color .2s var(--ease);
}
.footer-col a:hover{color:var(--brand)}
.footer-text{
  font-size:14px;
  color:rgba(247,245,241,.72);
  line-height:1.8;
  margin-bottom:8px;
}
.footer-time{
  font-family:var(--mono);
  font-size:13.5px;
  color:rgba(247,245,241,.72);
  letter-spacing:-.01em;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:24px;
}
.footer-bottom p{
  font-size:13.5px;
  color:rgba(247,245,241,.6);
}
.to-top{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid rgba(255,255,255,.22);
  border-radius:50%;
  color:var(--paper);
  font-size:14px;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.to-top:hover{background:var(--brand);border-color:var(--brand);color:#fff}

/* ===== 进场动效 ===== */
.js .reveal{opacity:0;transform:translateY(12px)}
.js .reveal.is-in{
  opacity:1;
  transform:none;
  transition:opacity .24s var(--ease),transform .24s var(--ease);
}

/* ===== 响应式 ===== */
@media (max-width:1100px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .cta-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .compare-col--left{border-right:0;border-bottom:1px solid var(--line)}
}
@media (max-width:900px){
  :root{--header-h:64px}
  .brand-inner{min-height:64px;gap:12px}
  .nav-search{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .channel-row{display:none}
  .mobile-panel .panel-inner{padding:16px}
  .cat-hero{padding:36px 0 32px}
  .hero-tags a{min-height:44px}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.85}
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section--tight{padding:44px 0}
  .sec-head{margin-bottom:28px}
  .sec-head--split{flex-direction:column;align-items:flex-start;gap:16px}
  .step-row{
    grid-template-columns:24px minmax(0,1fr) 22px;
    gap:14px;
    padding:20px 12px 20px 16px;
  }
  .step-body h3{font-size:17px}
  .step-body p{font-size:14px}
  .meter{grid-template-columns:88px minmax(0,1fr) 30px;gap:10px}
  .prepare-figure{margin-bottom:20px}
  .compare-col{padding:22px 18px 24px}
  .timeline-step{margin-bottom:14px}
  .faq-q{font-size:16px;padding:18px 0}
  .faq-a-inner{padding:0 8px 18px 0}
  .form-card{padding:20px}
  .lead-form{grid-template-columns:minmax(0,1fr);gap:16px}
  .form-actions{flex-direction:column;align-items:stretch}
  .form-actions .btn{width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .compare-grid .cell{margin-bottom:14px}
}
@media (min-width:640px) and (max-width:1023px){
  .lead-form{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none !important;animation:none !important}
  .js .reveal{opacity:1;transform:none}
  .meter-fill{width:var(--w,0) !important}
}

/* roulang page: category2 */
:root{
  --ink-900:#14120F;
  --ink-700:#2C2823;
  --ink-500:#6B655B;
  --line:#E5E0D8;
  --paper:#F7F5F1;
  --card:#FFFFFF;
  --brand:#FF6A1A;
  --brand-soft:#FFEDE0;
  --brand-2:#FFB020;
  --teal:#1F6F6B;
  --ok:#2E7D5B;
  --warn:#B7791F;
  --err:#C0392B;
  --sh-1:0 1px 2px rgba(20,18,15,.05);
  --sh-2:0 8px 24px -12px rgba(20,18,15,.16);
  --sh-3:0 16px 40px -20px rgba(20,18,15,.22);
  --r-card:14px;
  --r-btn:8px;
  --r-img:12px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--paper);
  overflow-x:hidden;
  font-weight:400;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--brand)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink-900);line-height:1.3;font-weight:700;letter-spacing:0}
p{margin:0}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:15px}
:focus-visible{outline:2px solid var(--ink-900);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(min-width:1440px){.container{max-width:1280px}}
@media(max-width:639px){.container{padding:0 16px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;text-decoration:none;
  transition:background-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),filter .18s var(--ease);
  min-height:44px;
}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-primary:hover{background:#F05F12;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:none;box-shadow:none}
.btn-outline{background:transparent;border-color:var(--ink-900);color:var(--ink-900)}
.btn-outline:hover{background:var(--ink-900);color:var(--paper)}
.btn-outline:active{transform:none}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-900)}
.btn-ghost:hover{border-color:var(--ink-900);color:var(--ink-900)}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s var(--ease)}
.site-header.is-stuck{box-shadow:0 6px 18px -14px rgba(20,18,15,.35)}
.brand-row{background:#fff;border-bottom:1px solid var(--line)}
.brand-inner{display:flex;align-items:center;gap:24px;min-height:76px}
.brand-logo{display:inline-flex;align-items:center;flex:0 0 auto}
.logo-text{font-size:19px;font-weight:700;color:var(--ink-900);letter-spacing:0;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--brand);margin-left:2px}
.brand-search{display:flex;align-items:center;gap:8px;flex:1 1 auto;max-width:420px;margin-left:auto}
.search-field{
  flex:1 1 auto;height:40px;padding:0 14px;border:1px solid var(--line);
  border-radius:var(--r-btn);background:var(--paper);color:var(--ink-900);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.search-field::placeholder{color:var(--ink-500)}
.search-field:focus{outline:none;border-color:var(--ink-900);background:#fff;box-shadow:0 0 0 3px rgba(255,106,26,.12)}
.search-btn{height:40px;min-height:40px;padding:0 16px;border-color:var(--line);color:var(--ink-700);font-weight:500}
.brand-cta{flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;color:var(--ink-900);font-size:17px;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--ink-900)}
.channel-row{background:var(--paper);border-bottom:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;min-height:52px}
.channel-list{display:flex;align-items:center;gap:30px;overflow-x:auto;scrollbar-width:none;width:100%;padding:2px 0}
.channel-list::-webkit-scrollbar{display:none}
.channel-list li{flex:0 0 auto}
.channel-list a{
  position:relative;display:inline-flex;align-items:center;height:48px;
  font-size:15px;color:var(--ink-500);font-weight:500;white-space:nowrap;
  transition:color .18s var(--ease);
}
.channel-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.channel-list a:hover{color:var(--ink-900)}
.channel-list a:hover::after{transform:scaleX(1)}
.channel-list a.is-active{color:var(--ink-900);font-weight:600}
.channel-list a.is-active::after{transform:scaleX(1)}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(20,18,15,.45);opacity:0;visibility:hidden;transition:opacity .2s var(--ease),visibility .2s var(--ease);z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);background:#fff;z-index:90;
  transform:translateX(102%);transition:transform .24s var(--ease);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;color:var(--ink-900);font-size:17px;cursor:pointer}
.drawer-close:hover{border-color:var(--ink-900)}
.drawer-search{display:flex;gap:8px;margin:18px 0 8px}
.drawer-nav{display:flex;flex-direction:column;margin:8px 0 20px}
.drawer-nav a{
  display:flex;align-items:center;min-height:50px;padding-left:12px;font-size:16px;color:var(--ink-700);
  border-bottom:1px solid var(--line);position:relative;
}
.drawer-nav a.is-active{color:var(--ink-900);font-weight:600}
.drawer-nav a.is-active::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:2px;background:var(--brand)}
.drawer-cta{width:100%}

/* ---------- 分类 Hero ---------- */
.page-hero{position:relative;background:var(--paper);border-bottom:1px solid var(--line);padding:44px 0 34px;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.10;
}
.page-hero>.container{position:relative;z-index:1}
.breadcrumb{margin-bottom:18px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"›";color:var(--ink-500)}
.breadcrumb a{color:var(--ink-500)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb li[aria-current] span,.breadcrumb li[aria-current]{color:var(--ink-900);font-weight:500}
.page-hero h1{font-size:clamp(28px,3.6vw,40px);line-height:1.25;max-width:860px}
.hero-sub{margin-top:16px;font-size:18px;line-height:1.7;color:var(--ink-500);max-width:720px}
.anchor-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.anchor-tags a{
  display:inline-flex;align-items:center;height:36px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--ink-700);font-weight:500;
  transition:border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.anchor-tags a:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--alt{background:#fff}
.section--paper{background:var(--paper)}
.section-head{max-width:760px;margin-bottom:44px}
.section-title{position:relative;padding-left:16px;font-size:clamp(22px,2.4vw,28px)}
.section-title::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;background:var(--brand)}
.section-desc{margin-top:14px;font-size:16px;color:var(--ink-500);line-height:1.8}

/* Foundation 网格微调 */
.grid-x{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px;row-gap:24px}
.grid-x>.cell{padding-left:12px;padding-right:12px}

/* ---------- 卡片 ---------- */
.tile{
  display:flex;flex-direction:column;height:100%;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.tile:hover{border-color:var(--ink-900);transform:translateY(-2px);box-shadow:var(--sh-3)}
.tile-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--paper)}
.tile-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.tile:hover .tile-media img{transform:scale(1.02)}
.tile-media::after{content:"";position:absolute;inset:0;background:rgba(20,18,15,.06);transition:background-color .2s var(--ease)}
.tile:hover .tile-media::after{background:rgba(20,18,15,.02)}
.tile-body{display:flex;flex-direction:column;gap:10px;padding:22px 22px 24px;flex:1 1 auto}
.tile-title{font-size:19px;line-height:1.4}
.tile-desc{font-size:15px;line-height:1.7;color:var(--ink-500)}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;letter-spacing:0;
}
.tile-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line)}
.meta-mono{font-family:ui-monospace,SFMono-Regular,Consolas,"JetBrains Mono",monospace;font-size:13px;color:var(--ink-500);letter-spacing:-.01em}

/* ---------- 编号横条 ---------- */
.step-list{border-top:1px solid var(--line)}
.step-item{
  display:flex;align-items:flex-start;gap:24px;padding:26px 20px 26px 16px;
  border-bottom:1px solid var(--line);position:relative;background:transparent;
  transition:background-color .2s var(--ease),padding-left .2s var(--ease);
}
.step-item::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:2px;
  background:var(--brand);transform:scaleY(0);transform-origin:top;transition:transform .2s var(--ease);
}
.step-item:hover{background:#fff}
.step-item:hover::before{transform:scaleY(1)}
.step-no{
  flex:0 0 48px;font-family:ui-monospace,SFMono-Regular,Consolas,"JetBrains Mono",monospace;
  font-size:22px;font-weight:700;color:var(--brand);line-height:1.2;letter-spacing:-.01em;
}
.step-main{flex:1 1 auto;display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 28px}
.step-title{font-size:20px;font-weight:600;flex:0 0 220px;line-height:1.4}
.step-desc{flex:1 1 320px;font-size:15px;color:var(--ink-500);line-height:1.8}

/* ---------- 图文分栏 ---------- */
.split{display:flex;flex-wrap:wrap;gap:40px;align-items:center}
.split-media{flex:1 1 420px;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:#fff}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.split-body{flex:1 1 420px}
.split-list{display:flex;flex-direction:column;gap:2px;margin-top:22px}
.split-item{
  display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);
}
.split-item:first-child{border-top:1px solid var(--line)}
.split-icon{
  flex:0 0 34px;height:34px;border-radius:var(--r-btn);background:var(--brand-soft);
  color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:14px;
}
.split-item h3{font-size:16px;font-weight:600;margin-bottom:4px}
.split-item p{font-size:15px;color:var(--ink-500);line-height:1.75}

/* ---------- 安全建议 ---------- */
.safe-card{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;display:flex;flex-direction:column;gap:12px;
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.safe-card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-2)}
.safe-icon{
  width:44px;height:44px;border-radius:var(--r-btn);display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-size:18px;
}
.safe-card h3{font-size:18px}
.safe-card p{font-size:15px;color:var(--ink-500);line-height:1.75}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:960px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:none;border:0;padding:22px 0;display:flex;align-items:center;gap:16px;
  text-align:left;cursor:pointer;color:var(--ink-900);font-size:17px;font-weight:600;line-height:1.5;
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-q span:first-child{flex:1 1 auto}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);
  transform:translate(-50%,-50%);transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a p{font-size:15px;color:var(--ink-500);line-height:1.8;padding:0 36px 24px 0;max-width:840px}

/* ---------- CTA / 表单 ---------- */
.cta-section{background:var(--ink-900);color:var(--paper);padding:88px 0}
.cta-section .section-title{color:var(--paper)}
.cta-section .section-desc{color:rgba(247,245,241,.72)}
.cta-card{
  background:#1D1A16;border:1px solid rgba(255,255,255,.10);border-radius:var(--r-card);
  padding:28px 24px;
}
.form-grid{display:flex;flex-wrap:wrap;gap:16px 20px}
.field{display:flex;flex-direction:column;gap:8px;flex:1 1 calc(50% - 10px);min-width:220px}
.field.full{flex:1 1 100%}
.field label{font-size:13px;color:rgba(247,245,241,.7)}
.field input,.field select,.field textarea{
  height:48px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.16);background:#221E19;color:var(--paper);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field textarea{height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:rgba(247,245,241,.4)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,106,26,.18);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,rgba(247,245,241,.6) 50%),linear-gradient(135deg,rgba(247,245,241,.6) 50%,transparent 50%);background-position:calc(100% - 20px) 22px,calc(100% - 14px) 22px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.check-line{display:flex;align-items:flex-start;gap:10px;flex:1 1 100%;font-size:14px;color:rgba(247,245,241,.72);line-height:1.7}
.check-line input{width:18px;height:18px;margin-top:4px;accent-color:var(--brand)}
.form-actions{flex:1 1 100%;display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:4px}
.notice{
  display:none;flex:1 1 100%;margin-top:6px;padding:12px 14px;border-radius:var(--r-btn);
  background:rgba(255,106,26,.12);border-left:3px solid var(--brand);
  font-size:14px;color:var(--paper);line-height:1.7;
}
.notice.is-show{display:block}
.trust-list{display:flex;flex-direction:column;gap:2px}
.trust-item{display:flex;gap:12px;align-items:flex-start;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.10)}
.trust-item:first-child{border-top:1px solid rgba(255,255,255,.10)}
.trust-item i{color:var(--brand-2);font-size:16px;margin-top:5px}
.trust-item p{font-size:14px;color:rgba(247,245,241,.75);line-height:1.7}
.cta-side-title{font-size:18px;color:var(--paper);margin-bottom:6px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:var(--paper);padding:72px 0 0}
.footer-grid{display:flex;flex-wrap:wrap;gap:40px 32px}
.footer-brand{flex:1 1 300px;max-width:360px}
.footer-brand .logo-text{color:var(--paper)}
.footer-brand p{margin-top:14px;font-size:14px;color:rgba(247,245,241,.72);line-height:1.8;max-width:280px}
.footer-col{flex:1 1 180px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--brand-2);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col ul a{font-size:14px;color:rgba(247,245,241,.72)}
.footer-col ul a:hover{color:var(--brand)}
.footer-text{font-size:14px;color:rgba(247,245,241,.72);line-height:1.8;margin-bottom:10px}
.footer-time{font-family:ui-monospace,SFMono-Regular,Consolas,"JetBrains Mono",monospace;font-size:14px;color:var(--brand-2);letter-spacing:-.01em}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.10);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:rgba(247,245,241,.6);line-height:1.7}
.to-top{
  width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.22);
  background:transparent;color:var(--paper);cursor:pointer;font-size:14px;
  display:flex;align-items:center;justify-content:center;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.to-top:hover{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- 进场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s var(--ease),transform .4s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important;transition-duration:.01ms!important}
}

/* ---------- 响应式 ---------- */
@media(max-width:1023px){
  .brand-search{max-width:none;flex:1 1 100%;order:3;margin:0 0 14px}
  .brand-inner{flex-wrap:wrap;padding-top:14px;padding-bottom:14px;min-height:auto}
  .brand-cta{display:none}
  .section{padding:72px 0}
  .split{gap:28px}
  .cta-section{padding:72px 0}
}
@media(max-width:899px){
  .nav-toggle{display:inline-flex;margin-left:auto}
  .brand-search{display:none}
  .channel-row{padding:0}
  .channel-inner{position:relative}
  .channel-list{
    mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
  }
  .step-title{flex:1 1 100%}
  .step-desc{flex:1 1 100%}
  .footer-grid{gap:32px}
}
@media(max-width:639px){
  body{font-size:16px}
  .section{padding:56px 0}
  .section--tight{padding:56px 0}
  .page-hero{padding:28px 0 26px}
  .hero-sub{font-size:16px}
  .grid-x{margin-left:-8px;margin-right:-8px;row-gap:16px}
  .grid-x>.cell{padding-left:8px;padding-right:8px}
  .step-item{gap:14px;padding:22px 12px 22px 12px}
  .step-no{flex:0 0 36px;font-size:19px}
  .faq-q{font-size:16px}
  .field{flex:1 1 100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-card{padding:22px 18px}
}

/* roulang page: category3 */
:root{
  --ink-900:#14120F;
  --ink-700:#2C2823;
  --ink-500:#6B655B;
  --line:#E5E0D8;
  --paper:#F7F5F1;
  --card:#FFFFFF;
  --brand:#FF6A1A;
  --brand-soft:#FFEDE0;
  --brand-2:#FFB020;
  --teal:#1F6F6B;
  --ok:#2E7D5B;
  --warn:#B7791F;
  --err:#C0392B;
  --sh-1:0 1px 2px rgba(20,18,15,.05);
  --sh-2:0 8px 24px -12px rgba(20,18,15,.16);
  --sh-3:0 16px 40px -20px rgba(20,18,15,.22);
  --r-card:14px;
  --r-btn:8px;
  --r-img:12px;
  --r-in:8px;
  --mono:ui-monospace,SFMono-Regular,Consolas,"JetBrains Mono",monospace;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",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(--sans);
  font-size:17px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--paper);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
a{color:var(--teal);text-decoration:none;transition:color .18s cubic-bezier(.2,.7,.2,1);}
a:hover{color:var(--brand);}
h1,h2,h3,h4{margin:0;color:var(--ink-900);line-height:1.3;font-weight:700;letter-spacing:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink-900);}
:focus-visible{outline:2px solid var(--ink-900);outline-offset:2px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1280px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;background:transparent;
  transition:transform .18s cubic-bezier(.2,.7,.2,1),background-color .18s cubic-bezier(.2,.7,.2,1),color .18s cubic-bezier(.2,.7,.2,1),box-shadow .18s cubic-bezier(.2,.7,.2,1),border-color .18s cubic-bezier(.2,.7,.2,1);
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:#ef5f12;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-outline{border-color:var(--ink-900);color:var(--ink-900);}
.btn-outline:hover{background:var(--ink-900);color:var(--paper);}
.btn-ghost{color:var(--ink-900);padding:0 4px;min-height:44px;}
.btn-ghost i{transition:transform .18s cubic-bezier(.2,.7,.2,1);}
.btn-ghost:hover{color:var(--brand);}
.btn-ghost:hover i{transform:translateX(2px);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--card);}
.brand-row{border-bottom:1px solid var(--line);transition:box-shadow .2s cubic-bezier(.2,.7,.2,1);}
.site-header.is-stuck .brand-row{box-shadow:0 1px 12px rgba(20,18,15,.06);}
.brand-inner{display:flex;align-items:center;gap:24px;min-height:76px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-text{font-size:19px;font-weight:700;color:var(--ink-900);letter-spacing:0;line-height:1.2;}
.logo-text em{font-style:normal;color:var(--brand);}
.brand-search{
  flex:1 1 auto;max-width:420px;display:flex;align-items:center;gap:10px;
  height:40px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-in);background:var(--paper);
  transition:border-color .18s cubic-bezier(.2,.7,.2,1),background-color .18s cubic-bezier(.2,.7,.2,1);
}
.brand-search:focus-within{border-color:var(--ink-900);background:var(--card);}
.brand-search i{color:var(--ink-500);font-size:14px;}
.brand-search input{flex:1;border:0;background:transparent;outline:none;height:100%;font-size:15px;}
.brand-search input::placeholder{color:var(--ink-500);}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--card);color:var(--ink-900);font-size:17px;
}
.nav-toggle:hover{border-color:var(--ink-900);}

.channel-row{background:var(--paper);border-bottom:1px solid var(--line);}
.channel-inner{padding-top:0;padding-bottom:0;}
.channel-list{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none;}
.channel-list::-webkit-scrollbar{display:none;}
.channel-list li{flex:0 0 auto;}
.channel-list a{
  position:relative;display:inline-flex;align-items:center;min-height:50px;padding:0 16px;
  font-size:15px;color:var(--ink-500);font-weight:500;
}
.channel-list a::after{
  content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;background:transparent;
  transition:background-color .18s cubic-bezier(.2,.7,.2,1);
}
.channel-list a:hover{color:var(--ink-900);}
.channel-list a.is-active{color:var(--ink-900);font-weight:600;}
.channel-list a.is-active::after{background:var(--brand);}
.channel-list a.is-active:hover{color:var(--ink-900);}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;display:none;
}
.drawer.is-open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(20,18,15,.42);border:0;padding:0;width:100%;}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(86vw,340px);height:100%;
  background:var(--card);border-left:1px solid var(--line);
  padding:20px;overflow-y:auto;box-shadow:var(--sh-3);
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-head strong{font-size:16px;color:var(--ink-900);}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--card);color:var(--ink-900);}
.drawer-search{display:flex;align-items:center;gap:10px;height:44px;padding:0 12px;border:1px solid var(--line);border-radius:var(--r-in);background:var(--paper);margin-bottom:16px;}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;}
.drawer-nav li a{
  display:flex;align-items:center;min-height:52px;padding:0 12px;font-size:16px;
  color:var(--ink-700);border-bottom:1px solid var(--line);position:relative;
}
.drawer-nav li a.is-active{color:var(--ink-900);font-weight:600;}
.drawer-nav li a.is-active::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;background:var(--brand);border-radius:2px;
}

/* ---------- 分类 Hero ---------- */
.page-hero{
  position:relative;
  padding:40px 0 52px;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(100deg,rgba(247,245,241,.97) 0%,rgba(247,245,241,.9) 48%,rgba(247,245,241,.78) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-500);margin-bottom:22px;}
.breadcrumb a{color:var(--ink-500);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--ink-900);}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:#C24A06;font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.page-hero h1{
  margin:16px 0 14px;
  font-size:clamp(28px,4vw,44px);
  line-height:1.22;
  max-width:22em;
}
.hero-sub{max-width:640px;font-size:17px;color:var(--ink-500);line-height:1.85;}
.anchor-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px;}
.anchor-tabs a{
  display:inline-flex;align-items:center;min-height:38px;padding:0 15px;border-radius:999px;
  border:1px solid var(--line);background:var(--card);color:var(--ink-700);font-size:14px;
  transition:border-color .18s cubic-bezier(.2,.7,.2,1),color .18s cubic-bezier(.2,.7,.2,1),transform .18s cubic-bezier(.2,.7,.2,1);
}
.anchor-tabs a:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{
  position:relative;padding-left:16px;font-size:clamp(22px,2.6vw,30px);line-height:1.3;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;background:var(--brand);
}
.section-head p{margin-top:12px;font-size:16px;color:var(--ink-500);}

/* ---------- 两栏要点对照 ---------- */
.compare-grid{margin-top:0;}
.compare-col{
  height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--sh-1);
  transition:box-shadow .2s cubic-bezier(.2,.7,.2,1),transform .2s cubic-bezier(.2,.7,.2,1);
}
.section-alt .compare-col{background:var(--paper);}
.compare-col:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.compare-col h3{font-size:19px;display:flex;align-items:center;gap:10px;}
.compare-col h3 i{font-size:15px;color:var(--brand);}
.compare-col .col-note{margin-top:8px;font-size:14px;color:var(--ink-500);line-height:1.7;}
.point-list{margin-top:22px;}
.point-list li{
  display:flex;gap:14px;padding:16px 0;border-top:1px solid var(--line);
}
.point-list li:first-child{border-top:1px solid var(--line);}
.point-mark{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;font-family:var(--mono);
  background:var(--brand-soft);color:#C24A06;margin-top:3px;
}
.point-list li.is-cool .point-mark{background:#E6F0EF;color:var(--teal);}
.point-body strong{display:block;font-size:16px;color:var(--ink-900);font-weight:600;line-height:1.6;}
.point-body span{display:block;margin-top:4px;font-size:14.5px;color:var(--ink-500);line-height:1.75;}

/* ---------- 深色提示条 ---------- */
.band{
  background:var(--ink-900);border:1px solid rgba(255,255,255,.10);border-radius:var(--r-card);
  padding:32px 30px;color:rgba(247,245,241,.78);
}
.band-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.band-item{display:flex;gap:12px;}
.band-item i{color:var(--brand-2);font-size:16px;margin-top:5px;}
.band-item strong{display:block;color:var(--paper);font-size:16px;font-weight:600;line-height:1.6;}
.band-item span{display:block;margin-top:5px;font-size:14.5px;line-height:1.75;}

/* ---------- 编号说明 ---------- */
.steps-grid > .cell:first-child{margin-bottom:28px;}
.steps-figure{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);}
.steps-figure img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:0;}
.steps-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 16px;font-size:13px;color:var(--paper);
  background:linear-gradient(to top,rgba(20,18,15,.82),rgba(20,18,15,0));
}
.step-list li{
  position:relative;display:grid;grid-template-columns:62px 1fr;gap:18px;
  padding:22px 18px 22px 14px;border-bottom:1px solid var(--line);background:transparent;
  transition:background-color .2s cubic-bezier(.2,.7,.2,1);
}
.step-list li:first-child{border-top:1px solid var(--line);}
.step-list li::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:2px;
  background:var(--brand);opacity:0;transition:opacity .2s cubic-bezier(.2,.7,.2,1);
}
.step-list li:hover{background:var(--card);}
.section-alt .step-list li:hover{background:var(--paper);}
.step-list li:hover::before{opacity:1;}
.step-no{
  font-family:var(--mono);font-size:20px;font-weight:700;color:var(--brand);
  letter-spacing:-.01em;line-height:1.4;
}
.step-body strong{display:block;font-size:19px;color:var(--ink-900);font-weight:600;line-height:1.5;}
.step-body p{margin-top:6px;font-size:15px;color:var(--ink-500);line-height:1.8;max-width:62ch;}

/* ---------- FAQ ---------- */
.faq-col{padding:0 12px;}
.accordion.faq-list{
  background:transparent;border:0;margin:0;
}
.faq-list .accordion-item{border:0;margin:0;background:transparent;}
.faq-list .accordion-title{
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--ink-900);
  background:transparent;border:0;border-top:1px solid var(--line);line-height:1.6;
  min-height:44px;
}
.faq-list .accordion-item:last-child .accordion-title{border-bottom:1px solid var(--line);}
.faq-list .accordion-title:hover{color:var(--brand);}
.faq-list .accordion-title::before{
  content:"+";font-family:var(--sans);font-size:20px;font-weight:600;color:var(--brand);
  order:2;flex:0 0 auto;line-height:1.2;margin-top:1px;
  transition:transform .2s cubic-bezier(.2,.7,.2,1);
}
.faq-list .accordion-title[aria-expanded="true"]::before{
  content:"−";transform:rotate(90deg);
}
.faq-list .accordion-content{
  padding:0 0 20px;border:0 !important;background:transparent !important;
}
.faq-list .accordion-content p{
  font-size:15px;color:var(--ink-500);line-height:1.85;max-width:62ch;
}

/* ---------- 转化与表单 ---------- */
.cta-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:34px 32px;
}
.cta-card h2{font-size:clamp(21px,2.4vw,26px);}
.cta-card .cta-lead{margin-top:12px;font-size:15.5px;color:var(--ink-500);max-width:52ch;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 20px;margin-top:26px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--ink-500);font-weight:500;}
.field input,.field select,.field textarea{
  height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-in);
  background:var(--card);outline:none;transition:border-color .18s cubic-bezier(.2,.7,.2,1),box-shadow .18s cubic-bezier(.2,.7,.2,1);
}
.field textarea{height:110px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--ink-900);box-shadow:0 0 0 3px rgba(255,106,26,.15);
}
.check-row{display:flex;align-items:flex-start;gap:10px;margin-top:4px;}
.check-row input{width:18px;height:18px;margin-top:4px;accent-color:var(--brand);}
.check-row span{font-size:13.5px;color:var(--ink-500);line-height:1.7;}
.form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:6px;}
.form-note{
  grid-column:1 / -1;display:none;padding:14px 16px;border-radius:var(--r-in);
  background:var(--paper);border:1px solid var(--line);border-left:3px solid var(--brand);
  font-size:14.5px;color:var(--ink-700);
}
.form-note.is-visible{display:block;}
.trust-list{margin-top:26px;border-top:1px solid var(--line);}
.trust-list li{display:flex;gap:12px;padding:16px 0;border-bottom:1px solid var(--line);}
.trust-list i{color:var(--brand);font-size:16px;margin-top:4px;}
.trust-list strong{display:block;font-size:15.5px;color:var(--ink-900);font-weight:600;line-height:1.6;}
.trust-list span{display:block;margin-top:4px;font-size:14px;color:var(--ink-500);line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(247,245,241,.72);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand .logo-text{color:var(--paper);font-size:19px;}
.footer-brand .logo-text em{color:var(--brand);}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.85;max-width:32ch;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--brand-2);margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:rgba(247,245,241,.72);}
.footer-col ul a:hover{color:var(--brand);}
.footer-text{font-size:14px;line-height:1.9;}
.footer-time{margin-top:6px;font-family:var(--mono);font-size:13.5px;color:rgba(247,245,241,.56);letter-spacing:-.01em;}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(255,255,255,.10);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;font-size:13.5px;color:rgba(247,245,241,.6);}
.to-top{
  width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.22);
  background:transparent;color:var(--paper);font-size:14px;
  transition:background-color .18s cubic-bezier(.2,.7,.2,1),border-color .18s cubic-bezier(.2,.7,.2,1),transform .18s cubic-bezier(.2,.7,.2,1);
}
.to-top:hover{background:var(--brand);border-color:var(--brand);transform:translateY(-2px);}

/* ---------- 进场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .34s cubic-bezier(.2,.7,.2,1),transform .34s cubic-bezier(.2,.7,.2,1);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .brand-search{display:none;}
  .band-grid{grid-template-columns:1fr;gap:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:72px 0;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .channel-row{display:none;}
  .brand-inner{min-height:68px;gap:12px;}
  .logo-text{font-size:16px;}
  .page-hero{padding:28px 0 40px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:30px;}
  .compare-col{padding:22px 20px;}
  .band{padding:24px 20px;}
  .cta-card{padding:24px 20px;}
  .form-grid{grid-template-columns:1fr;}
  .steps-figure img{aspect-ratio:16/10;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .step-list li{grid-template-columns:46px 1fr;gap:14px;padding:18px 12px;}
  .step-no{font-size:17px;}
  .step-body strong{font-size:17px;}
  .faq-col{padding:0;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .anchor-tabs a{font-size:13.5px;padding:0 12px;}
  .brand-actions .btn{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}