/* roulang page: index */
:root{
  --ink:#101312;
  --lime:#C9F05F;
  --pine:#1B3A31;
  --paper:#F7F5F1;
  --card:#FFFFFF;
  --line:#E3DFD7;
  --line-strong:#CFC9BD;
  --muted:#5A5F58;
  --text-2:#3A3E38;
  --warn:#B4402A;
  --r-card:14px;
  --r-btn:10px;
  --r-big:20px;
  --shadow-1:0 1px 2px rgba(16,19,18,.05);
  --shadow-2:0 14px 34px -14px rgba(16,19,18,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar:232px;
  --num-font:"Inter","SF Mono",ui-monospace,"Menlo",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;border-radius:var(--r-card)}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease)}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;line-height:inherit}
input,textarea,select{font:inherit;color:inherit}
:focus{outline:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;box-shadow:0 0 0 4px rgba(201,240,95,.32)}
::selection{background:var(--lime);color:var(--ink)}
.num{font-family:var(--num-font);font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- 结构 ---------- */
.shell{display:flex;min-height:100vh;width:100%}
.content{margin-left:var(--sidebar);width:calc(100% - var(--sidebar));display:flex;flex-direction:column;min-height:100vh}
main{flex:1 0 auto}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 32px}
.wrap-wide{max-width:1280px}
.section{padding:104px 0}
.section-tight{padding:72px 0}
.section-line{border-top:1px solid var(--line)}

/* ---------- 侧栏 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);
  background:var(--paper);border-right:1px solid var(--line);
  padding:32px 24px 28px;display:flex;flex-direction:column;z-index:60;
}
.brand{display:block;padding-bottom:22px;border-bottom:1px solid var(--line)}
.brand-main{display:block;font-size:21px;font-weight:800;letter-spacing:-.01em;line-height:1.2}
.brand-sub{display:block;font-size:11.5px;letter-spacing:.18em;color:var(--muted);margin-top:6px;font-weight:600}
.side-nav{margin-top:26px;display:flex;flex-direction:column;gap:2px}
.side-nav a{
  position:relative;display:block;padding:11px 16px 11px 14px;font-size:14px;
  color:var(--muted);border-radius:8px;transition:color .22s var(--ease),background .22s var(--ease);
}
.side-nav a::before{
  content:"";position:absolute;left:0;top:50%;width:3px;height:16px;background:var(--lime);
  border-radius:2px;transform:translateY(-50%) scaleY(0);transform-origin:center;
  transition:transform .22s var(--ease);
}
.side-nav a:hover{color:var(--ink);background:#fff}
.side-nav a:hover::before{transform:translateY(-50%) scaleY(1)}
.side-nav a.is-active{color:var(--ink);font-weight:600;background:#fff}
.side-nav a.is-active::before{transform:translateY(-50%) scaleY(1)}
.side-nav a.is-active::after{
  content:"";position:absolute;right:14px;top:50%;width:6px;height:6px;border-radius:50%;
  background:var(--ink);transform:translateY(-50%);
}
.side-foot{margin-top:auto;padding-top:24px;border-top:1px solid var(--line)}
.side-note{font-size:12px;line-height:1.7;color:var(--muted);margin-top:12px}

/* ---------- 移动顶栏 / 抽屉 ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:55;height:56px;
  align-items:center;justify-content:space-between;gap:12px;
  padding:0 20px;background:rgba(247,245,241,.96);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.brand-mini{display:flex;align-items:baseline;gap:6px;font-size:16px;font-weight:800;letter-spacing:-.01em}
.brand-mini span{font-size:10.5px;letter-spacing:.16em;color:var(--muted);font-weight:600}
.nav-toggle{
  width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;background:#fff;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--ink);border-radius:2px;transition:background .22s var(--ease)}
.nav-toggle:hover{border-color:var(--pine)}
.nav-toggle:hover span{background:var(--pine)}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:288px;max-width:86vw;z-index:90;
  background:var(--paper);border-right:1px solid var(--line);
  transform:translateX(-104%);transition:transform .28s var(--ease);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
}
.drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:36px;height:36px;border:1px solid var(--line);border-radius:10px;background:#fff;
  font-size:16px;color:var(--muted);display:flex;align-items:center;justify-content:center;
}
.drawer-close:hover{border-color:var(--pine);color:var(--pine)}
.drawer-nav{margin-top:18px;display:flex;flex-direction:column;gap:2px}
.drawer-nav a{padding:13px 12px;font-size:14.5px;color:var(--muted);border-radius:8px;border-left:3px solid transparent;transition:all .22s var(--ease)}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--ink);background:#fff;border-left-color:var(--lime);font-weight:600}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,19,18,.55);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
body.drawer-lock{overflow:hidden}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  transition:transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.btn:active{transform:translateY(0) scale(.99)}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--pine);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:#d8f884;transform:translateY(-2px);box-shadow:0 12px 26px -14px rgba(0,0,0,.5)}
.btn-block{width:100%}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;
  border-bottom:1px solid var(--ink);padding-bottom:3px;
  transition:color .22s var(--ease),border-color .22s var(--ease),gap .22s var(--ease);
}
.btn-link:hover{color:var(--pine);border-color:var(--pine);gap:12px}
.btn-link .arw{transition:transform .22s var(--ease)}
.btn-link:hover .arw{transform:translateX(3px)}

/* ---------- 通用小件 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;
  letter-spacing:.16em;color:var(--muted);text-transform:uppercase;
}
.eyebrow::before{content:"";width:3px;height:12px;background:var(--lime);border-radius:1px}
.badge{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.4;border:1px solid var(--line);
  color:var(--muted);background:#fff;white-space:nowrap;
}
.badge-lime{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.sec-head{max-width:740px}
.sec-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.24;letter-spacing:-.01em;margin-top:14px}
.sec-head p{margin-top:16px;font-size:16px;color:var(--muted);line-height:1.85;max-width:62ch}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ---------- Hero ---------- */
.hero{padding:56px 0 88px}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center;min-height:min(74vh,660px)}
.hero-title{
  font-size:clamp(30px,4.1vw,50px);font-weight:800;line-height:1.16;letter-spacing:-.02em;
  margin-top:20px;max-width:12em;
}
.hero-sub{margin-top:22px;font-size:17px;line-height:1.8;color:var(--muted);max-width:42ch}
.hero-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:34px}
.hero-media{position:relative}
.hero-media::before{
  content:"";position:absolute;top:16px;left:16px;right:-16px;bottom:-16px;
  border:1px solid var(--line-strong);border-radius:var(--r-card);z-index:0;pointer-events:none;
}
.hero-media img{
  position:relative;z-index:1;width:100%;aspect-ratio:4/5;object-fit:cover;
  border:1px solid var(--line);animation:softZoom .9s var(--ease) both;
}
.hero-tag{
  position:absolute;z-index:2;right:-6px;bottom:24px;display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:12px;color:var(--muted);box-shadow:var(--shadow-1);
}
.hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime)}

/* ---------- 动效 ---------- */
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
@keyframes softZoom{from{opacity:0;transform:scale(1.03)}to{opacity:1;transform:scale(1)}}
.fade-up{animation:fadeUp .72s var(--ease) both}
.d1{animation-delay:.05s}.d2{animation-delay:.12s}.d3{animation-delay:.19s}.d4{animation-delay:.26s}.d5{animation-delay:.33s}

/* ---------- 错位图文 ---------- */
.story{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.story + .story{margin-top:72px;padding-top:72px;border-top:1px solid var(--line)}
.story.reverse .story-media{order:-1}
.story-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border:1px solid var(--line);
  transition:transform .45s var(--ease);
}
.story-media{overflow:hidden;border-radius:var(--r-card)}
.story:hover .story-media img{transform:scale(1.02)}
.story-num{
  display:inline-flex;align-items:center;gap:10px;font-family:var(--num-font);
  font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--muted);
}
.story-num::after{content:"";width:32px;height:1px;background:var(--line-strong)}
.story h2{font-size:clamp(21px,2.4vw,29px);font-weight:700;line-height:1.26;margin-top:14px;letter-spacing:-.01em}
.story p{margin-top:16px;font-size:15.5px;line-height:1.85;color:var(--text-2);max-width:46ch}
.story .btn-link{margin-top:22px}

/* ---------- 步骤条 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);margin-top:44px;border-top:1px solid var(--line)}
.step{padding:30px 26px 4px 0;border-right:1px solid var(--line);transition:transform .22s var(--ease)}
.step + .step{padding-left:26px}
.step:last-child{border-right:0;padding-right:0}
.step:hover{transform:translateY(-3px)}
.step-idx{font-family:var(--num-font);font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--muted)}
.step h3{font-size:18px;font-weight:600;margin-top:12px;line-height:1.45}
.step p{font-size:14px;line-height:1.75;color:var(--muted);margin-top:8px}

/* ---------- 精选非对称 ---------- */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;margin-top:44px;align-items:stretch}
.feature-main{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.feature-main:hover{transform:translateY(-3px);border-color:var(--pine);box-shadow:var(--shadow-2)}
.feature-main .thumb{overflow:hidden;border-radius:0}
.feature-main .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .45s var(--ease)}
.feature-main:hover .thumb img{transform:scale(1.03)}
.feature-body{padding:26px;display:flex;flex-direction:column;gap:14px;flex:1}
.feature-body h3{font-size:21px;font-weight:600;line-height:1.42;letter-spacing:-.01em}
.feature-body p{font-size:15px;line-height:1.8;color:var(--muted)}
.feature-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--muted);margin-top:auto;padding-top:6px}
.feature-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line-strong)}
.feature-meta .go{margin-left:auto;font-size:16px;color:var(--ink);transition:transform .22s var(--ease)}
.feature-main:hover .go{transform:translateX(4px)}
.feature-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.mini-card{
  display:flex;flex-direction:column;gap:12px;padding:24px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.mini-card:hover{transform:translateY(-3px);border-color:var(--pine);box-shadow:var(--shadow-2)}
.mini-card h3{font-size:17px;font-weight:600;line-height:1.48}
.mini-card p{font-size:14px;line-height:1.78;color:var(--muted)}
.mini-card .feature-meta{padding-top:4px}

/* ---------- 最新信息列表 ---------- */
.news{display:flex;flex-direction:column;margin-top:36px;border-top:1px solid var(--line)}
.news-row{
  display:grid;grid-template-columns:88px 1fr 32px;gap:24px;align-items:center;
  padding:24px 4px;border-bottom:1px solid var(--line);
  transition:background .22s var(--ease),padding-left .22s var(--ease),border-color .22s var(--ease);
}
.news-row:hover{background:#fff;padding-left:18px;border-color:var(--line-strong)}
.news-idx{
  width:88px;height:88px;border-radius:12px;background:var(--ink);color:var(--lime);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-family:var(--num-font);flex:0 0 auto;
}
.news-idx em{font-style:normal;font-size:24px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.news-idx small{font-size:10.5px;letter-spacing:.14em;color:rgba(255,255,255,.6);font-family:inherit}
.news-main{min-width:0;display:flex;flex-direction:column;gap:6px}
.news-title{font-size:17px;font-weight:600;line-height:1.5;letter-spacing:-.005em;transition:color .22s var(--ease)}
.news-row:hover .news-title{color:var(--pine)}
.news-excerpt{
  font-size:14px;line-height:1.78;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);margin-top:4px;flex-wrap:wrap}
.news-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line-strong)}
.news-arrow{font-size:18px;color:var(--muted);text-align:right;transition:transform .22s var(--ease),color .22s var(--ease)}
.news-row:hover .news-arrow{transform:translateX(4px);color:var(--ink)}
.empty{
  margin-top:36px;border:1px dashed var(--line-strong);border-radius:var(--r-card);
  padding:40px 24px;max-height:240px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:12px;text-align:center;color:var(--muted);
}
.empty-ico{font-size:22px;line-height:1;color:var(--warn)}
.empty p{font-size:15px}

/* ---------- 数据与反馈 ---------- */
.evidence{
  position:relative;border-radius:var(--r-big);overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:72px 56px;
}
.evidence::before{content:"";position:absolute;inset:0;background:rgba(247,245,241,.94);z-index:0}
.evidence > *{position:relative;z-index:1}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:44px;padding:36px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat-num{font-family:var(--num-font);font-size:clamp(30px,3.4vw,42px);font-weight:700;letter-spacing:-.02em;line-height:1.1;font-variant-numeric:tabular-nums}
.stat-num span{font-family:"PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;font-weight:600;color:var(--muted);margin-left:6px;letter-spacing:0}
.stat-label{font-size:14px;color:var(--muted);margin-top:8px}
.quotes{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:36px}
.quote{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 26px 22px;box-shadow:var(--shadow-1)}
.quote::before{
  content:"“";position:absolute;top:0;left:18px;font-family:Georgia,"Times New Roman",serif;
  font-size:64px;line-height:1;color:var(--lime);
}
.quote p{position:relative;padding-top:26px;font-size:15px;line-height:1.85;color:var(--text-2)}
.quote .who{margin-top:16px;font-size:12.5px;color:var(--muted);letter-spacing:.02em}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq{margin-top:36px;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:24px;
  padding:22px 0;text-align:left;font-size:16px;font-weight:600;line-height:1.6;
  transition:color .22s var(--ease);
}
.faq-q:hover{color:var(--pine)}
.faq-ico{position:relative;width:16px;height:16px;flex:0 0 16px;transition:transform .26s var(--ease)}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;background:var(--ink);border-radius:2px;transition:background .26s var(--ease)}
.faq-ico::before{left:0;top:7px;width:16px;height:2px}
.faq-ico::after{left:7px;top:0;width:2px;height:16px}
.faq-item.is-open .faq-ico{transform:rotate(45deg)}
.faq-item.is-open .faq-ico::before,.faq-item.is-open .faq-ico::after{background:var(--pine)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s var(--ease)}
.faq-a > div{overflow:hidden}
.faq-a p{padding:0 0 24px;font-size:15px;line-height:1.85;color:var(--muted);max-width:64ch}
.faq-item.is-open .faq-a{grid-template-rows:1fr}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--pine);color:#fff;border-radius:var(--r-big);
  padding:64px;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
}
.cta-band h2{font-size:clamp(23px,2.8vw,32px);font-weight:700;line-height:1.28;color:#fff;letter-spacing:-.01em}
.cta-band .lead{margin-top:16px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.74);max-width:44ch}
.sub-form{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap}
.field{flex:1 1 220px;min-width:0}
.field label{display:block;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:8px}
.field input{
  width:100%;height:48px;border-radius:var(--r-btn);padding:0 16px;font-size:15px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.22);color:#fff;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.field input::placeholder{color:rgba(255,255,255,.42)}
.field input:hover{border-color:rgba(255,255,255,.38)}
.field input:focus{outline:none;border-color:var(--lime);background:rgba(255,255,255,.1);box-shadow:0 0 0 3px rgba(201,240,95,.24)}
.form-note{font-size:12.5px;line-height:1.7;color:rgba(255,255,255,.58);margin-top:14px}
.form-msg{display:none;font-size:13px;color:var(--lime);margin-top:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#fff;padding:72px 0 0;margin-top:104px;flex-shrink:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-main{color:#fff;font-size:20px}
.footer-brand .brand-sub{color:rgba(255,255,255,.5)}
.footer-brand p{margin-top:16px;font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:30ch}
.footer h4{font-size:12px;font-weight:600;letter-spacing:.16em;color:rgba(255,255,255,.48);margin-bottom:18px}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a,.footer-list span{font-size:14px;color:rgba(255,255,255,.78);line-height:1.7}
.footer-list a:hover{color:var(--lime)}
.footer-tip{font-size:12.5px;line-height:1.75;color:rgba(255,255,255,.5);margin-top:14px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:56px;padding:24px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.52);
}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:var(--lime)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-inner{gap:48px}
  .evidence{padding:64px 40px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .content{margin-left:0;width:100%}
  .topbar{display:flex}
  .section{padding:88px 0}
  .section-tight{padding:64px 0}
  .hero{padding:40px 0 64px}
  .hero-inner{grid-template-columns:1fr;gap:44px;min-height:0}
  .hero-title{max-width:none}
  .hero-media{max-width:520px}
  .story{grid-template-columns:1fr;gap:32px}
  .story.reverse .story-media{order:0}
  .story + .story{margin-top:56px;padding-top:56px}
  .steps{grid-template-columns:1fr 1fr}
  .step{border-right:0;border-bottom:1px solid var(--line);padding:26px 24px 26px 0}
  .step + .step{padding-left:0}
  .step:nth-child(odd){padding-right:24px;border-right:1px solid var(--line)}
  .step:nth-child(3),.step:nth-child(4){border-bottom:0}
  .feature-grid{grid-template-columns:1fr}
  .feature-side{grid-template-rows:none;grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr;gap:28px 24px}
  .quotes{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;gap:32px;padding:48px 40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .site-footer{margin-top:88px}
  .evidence{padding:56px 32px}
}
@media (max-width:767px){
  .wrap{padding:0 24px}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .feature-side{grid-template-columns:1fr}
  .cta-band{padding:40px 28px;border-radius:16px}
  .evidence{padding:44px 24px;border-radius:16px}
  .sub-form{flex-direction:column;align-items:stretch}
  .sub-form .btn{width:100%}
}
@media (max-width:639px){
  .wrap{padding:0 20px}
  .section{padding:56px 0}
  .hero{padding:32px 0 56px}
  .hero-sub{font-size:16px}
  .hero-actions{gap:16px}
  .hero-actions .btn{width:100%}
  .hero-actions .btn-link{border-bottom:0;padding:0}
  .hero-tag{right:8px;bottom:14px;font-size:11.5px;padding:7px 12px}
  .hero-media::before{display:none}
  .steps{grid-template-columns:1fr}
  .step{padding:24px 0!important;border-right:0!important;border-bottom:1px solid var(--line)!important}
  .step:last-child{border-bottom:0!important}
  .stats{grid-template-columns:1fr 1fr;padding:28px 0}
  .news-row{grid-template-columns:56px 1fr;gap:14px;padding:18px 0}
  .news-idx{width:56px;height:56px;border-radius:10px}
  .news-idx em{font-size:17px}
  .news-arrow{display:none}
  .news-title{font-size:15.5px}
  .news-excerpt{font-size:13.5px}
  .feature-body{padding:20px}
  .feature-body h3{font-size:18px}
  .mini-card{padding:20px}
  .faq-q{font-size:15px;padding:18px 0;gap:16px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;margin-top:40px}
  .quote{padding:22px}
  .cta-band{padding:32px 22px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .fade-up,.hero-media img{opacity:1!important;transform:none!important}
}

/* roulang page: article */
:root{
  --ink:#101312;
  --lime:#C9F05F;
  --green:#1B3A31;
  --paper:#F7F5F1;
  --card:#FFFFFF;
  --line:#E3DFD7;
  --muted:#5A5F58;
  --warn:#B4402A;
  --r-card:14px;
  --r-btn:10px;
  --r-block:20px;
  --shadow-1:0 1px 2px rgba(16,19,18,.05);
  --shadow-2:0 14px 34px -14px rgba(16,19,18,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --side:232px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);}
a:hover{color:var(--green);}
button{font-family:inherit;}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}

/* ---------- Foundation 默认外观覆盖 ---------- */
body,html{font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;}
a{color:var(--ink);}
a:hover,a:focus{color:var(--green);}
h1,h2,h3,h4{font-family:inherit;color:var(--ink);}
button,.button{background:transparent;color:inherit;border:0;padding:0;margin:0;}
input,textarea,select{font-family:inherit;}
.off-canvas{background:var(--paper);}
.off-canvas-content{background:var(--paper);}

a:focus-visible,
button:focus-visible,
.btn:focus-visible,
.side-nav a:focus-visible,
.tag:focus-visible,
.mini-card:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:2px;
  border-radius:6px;
}

/* ---------- 通用容器 ---------- */
.wrap{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 32px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--muted);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:3px;
  height:12px;
  background:var(--lime);
  display:inline-block;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  text-align:center;
  transition:all .22s var(--ease);
}
.btn-primary{background:var(--ink);color:#fff;border-color:var(--ink);box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--green);border-color:var(--green);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px);}
.btn-lime{background:var(--lime);color:var(--ink);border-color:var(--lime);}
.btn-lime:hover{background:#d9ff7a;border-color:#d9ff7a;color:var(--ink);transform:translateY(-2px);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  line-height:1.6;
  padding:3px 12px;
  border-radius:999px;
  background:var(--lime);
  color:var(--ink);
  letter-spacing:.02em;
}
.badge-outline{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  padding:3px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--muted);
  background:transparent;
}

/* ---------- 侧边竖导航 ---------- */
.sidebar{
  position:fixed;
  top:0;
  left:0;
  width:var(--side);
  height:100vh;
  background:var(--paper);
  border-right:1px solid var(--line);
  padding:36px 24px 28px;
  display:flex;
  flex-direction:column;
  z-index:40;
}
.sidebar .brand{
  display:block;
  margin-bottom:48px;
}
.sidebar .brand-main{
  display:block;
  font-size:19px;
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.3;
  color:var(--ink);
}
.sidebar .brand-sub{
  display:block;
  margin-top:8px;
  font-size:10.5px;
  letter-spacing:.2em;
  color:var(--muted);
}
.side-nav{
  display:flex;
  flex-direction:column;
  gap:2px;
  margin-bottom:auto;
}
.side-nav a{
  position:relative;
  display:block;
  padding:11px 0 11px 16px;
  font-size:13.5px;
  color:var(--muted);
  border-radius:4px;
  line-height:1.4;
}
.side-nav a::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  bottom:11px;
  width:3px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s var(--ease);
}
.side-nav a:hover{color:var(--ink);}
.side-nav a:hover::before{transform:scaleX(1);}
.side-nav a.is-active{
  color:var(--ink);
  font-weight:600;
}
.side-nav a.is-active::before{transform:scaleX(1);}
.sidebar-foot{margin-top:28px;}
.sidebar-foot .btn{width:100%;padding:12px 16px;font-size:14px;}
.sidebar-note{
  margin-top:16px;
  font-size:11.5px;
  line-height:1.7;
  color:var(--muted);
  word-break:break-all;
}

/* ---------- 主区域 ---------- */
.main-col{margin-left:var(--side);min-height:100vh;display:flex;flex-direction:column;}

/* ---------- 移动端顶栏 ---------- */
.mobile-bar{
  display:none;
  position:sticky;
  top:0;
  z-index:50;
  height:56px;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:0 20px;
  background:rgba(247,245,241,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(140%) blur(6px);
}
.mobile-bar .bar-brand{
  font-size:15.5px;
  font-weight:800;
  letter-spacing:-.01em;
}
.menu-toggle{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:36px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  color:var(--ink);
  background:#fff;
  cursor:pointer;
  transition:all .22s var(--ease);
}
.menu-toggle:hover{border-color:var(--green);color:var(--green);}
.menu-toggle i{
  display:block;
  width:14px;
  height:2px;
  background:currentColor;
  position:relative;
}
.menu-toggle i::before,
.menu-toggle i::after{
  content:"";
  position:absolute;
  left:0;
  width:14px;
  height:2px;
  background:currentColor;
}
.menu-toggle i::before{top:-5px;}
.menu-toggle i::after{top:5px;}

/* ---------- 抽屉 ---------- */
.off-canvas{width:288px;background:var(--paper);box-shadow:0 0 40px rgba(16,19,18,.2);}
.drawer-inner{
  display:flex;
  flex-direction:column;
  height:100%;
  padding:32px 24px 28px;
}
.drawer-inner .brand-main{
  display:block;
  font-size:18px;
  font-weight:800;
  line-height:1.3;
}
.drawer-inner .brand-sub{
  display:block;
  margin-top:8px;
  font-size:10.5px;
  letter-spacing:.2em;
  color:var(--muted);
  margin-bottom:36px;
}
.drawer-nav{display:flex;flex-direction:column;margin-bottom:auto;}
.drawer-nav a{
  position:relative;
  display:block;
  padding:14px 0 14px 16px;
  font-size:15px;
  color:var(--muted);
  border-bottom:1px solid var(--line);
}
.drawer-nav a::before{
  content:"";
  position:absolute;
  left:0;
  top:14px;
  bottom:14px;
  width:3px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s var(--ease);
}
.drawer-nav a:hover::before,
.drawer-nav a.is-active::before{transform:scaleX(1);}
.drawer-nav a.is-active{color:var(--ink);font-weight:600;}
.drawer-inner .btn{width:100%;margin-top:24px;}
.drawer-meta{
  margin-top:16px;
  font-size:12px;
  color:var(--muted);
  text-align:center;
  word-break:break-all;
}
.drawer-close{
  position:absolute;
  top:14px;
  right:14px;
  width:34px;
  height:34px;
  border-radius:50%;
  border:1px solid var(--line);
  background:#fff;
  color:var(--muted);
  font-size:18px;
  line-height:1;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
}
.drawer-close:hover{color:var(--ink);border-color:var(--green);}

/* ---------- 面包屑 ---------- */
.crumb{
  padding:32px 0 0;
  font-size:12.5px;
  color:var(--muted);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px;}
.crumb .sep{color:#B9B4AA;}
.crumb .current{
  color:var(--ink);
  font-weight:600;
  max-width:100%;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ---------- 文章头部 ---------- */
.article-head{
  padding:28px 0 0;
  border-bottom:1px solid var(--line);
  padding-bottom:36px;
}
.article-title{
  font-size:clamp(28px,3.6vw,44px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.02em;
  margin:18px 0 22px;
  max-width:900px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--muted);
}
.meta-sep{color:#C4BFB5;}
.article-meta .badge{margin-right:4px;}

/* ---------- 文章主体布局 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 240px;
  gap:64px;
  align-items:start;
  padding:48px 0 20px;
}
.article-main{max-width:760px;min-width:0;}

/* ---------- 正文排版 ---------- */
.article-body{
  font-size:17px;
  line-height:1.9;
  color:#1B1F1D;
}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  font-size:clamp(22px,2.4vw,28px);
  font-weight:700;
  line-height:1.32;
  letter-spacing:-.01em;
  margin:48px 0 16px;
  padding-left:14px;
  border-left:4px solid var(--lime);
  scroll-margin-top:88px;
}
.article-body h3{
  font-size:20px;
  font-weight:600;
  line-height:1.4;
  margin:32px 0 12px;
  scroll-margin-top:88px;
}
.article-body h4{
  font-size:17px;
  font-weight:600;
  margin:24px 0 10px;
}
.article-body p{margin:0 0 20px;}
.article-body ul,
.article-body ol{
  margin:0 0 22px;
  padding-left:24px;
  line-height:1.9;
}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body ul li,
.article-body ol li{margin-bottom:8px;}
.article-body ul li::marker{color:#A6C93F;font-size:.9em;}
.article-body ol li::marker{color:var(--muted);font-weight:600;}
.article-body a{
  color:var(--green);
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
}
.article-body a:hover{color:var(--ink);background:rgba(201,240,95,.35);}
.article-body strong{font-weight:700;color:var(--ink);}
.article-body img{
  width:100%;
  border-radius:var(--r-card);
  margin:28px 0 10px;
}
.article-body figure{margin:28px 0;}
.article-body figcaption{
  font-size:12.5px;
  color:var(--muted);
  line-height:1.7;
  margin-top:10px;
}
.article-body blockquote{
  margin:28px 0;
  padding:20px 24px;
  background:#FFFFFF;
  border-left:3px solid var(--ink);
  border-radius:0 var(--r-btn) var(--r-btn) 0;
  color:#3A3F3B;
  font-style:italic;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body hr{
  border:0;
  border-top:1px solid var(--line);
  margin:40px 0;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:15px;
  line-height:1.7;
  background:#fff;
  border-radius:var(--r-btn);
  overflow:hidden;
}
.article-body th,
.article-body td{
  border:1px solid var(--line);
  padding:11px 14px;
  text-align:left;
  vertical-align:top;
}
.article-body th{background:#F1EEE8;font-weight:600;}
.article-body code{
  background:#EFEBE4;
  border-radius:4px;
  padding:1px 6px;
  font-size:.9em;
}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  background:#fff;
  padding:44px 24px;
  text-align:center;
  max-height:240px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:14px;
}
.empty-state .empty-icon{
  width:34px;
  height:34px;
  border-radius:50%;
  border:2px solid var(--warn);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--warn);
  font-size:16px;
  font-weight:700;
  line-height:1;
}
.empty-state p{font-size:15px;color:var(--muted);margin:0;}
.empty-state .btn{padding:11px 22px;font-size:14px;}

/* ---------- 标签行 ---------- */
.tag-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:44px;
  padding-top:28px;
  border-top:1px solid var(--line);
}
.tag-row .tag-label{
  font-size:12px;
  letter-spacing:.14em;
  color:var(--muted);
  text-transform:uppercase;
  margin-right:4px;
}
.tag{
  display:inline-block;
  padding:6px 14px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:13px;
  color:var(--muted);
  background:transparent;
  transition:all .22s var(--ease);
}
.tag:hover{
  background:var(--ink);
  border-color:var(--ink);
  color:#fff;
}

/* ---------- 返回条 ---------- */
.back-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:36px;
}
.back-row .hint{font-size:13px;color:var(--muted);}

/* ---------- 粘性侧栏 ---------- */
.toc-col{
  position:sticky;
  top:40px;
  align-self:start;
}
.toc-card{
  border:1px solid var(--line);
  background:#fff;
  border-radius:var(--r-card);
  padding:22px 20px;
  box-shadow:var(--shadow-1);
}
.toc-card h4{
  font-size:12px;
  letter-spacing:.16em;
  color:var(--muted);
  font-weight:600;
  text-transform:uppercase;
  margin-bottom:16px;
}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;
  font-size:13.5px;
  line-height:1.6;
  color:var(--muted);
  padding:6px 0 6px 12px;
  border-left:2px solid transparent;
  transition:all .22s var(--ease);
}
.toc-list a:hover{color:var(--ink);}
.toc-list a.is-active{
  color:var(--ink);
  font-weight:600;
  border-left-color:var(--lime);
}
.toc-side{
  margin-top:20px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:transparent;
  padding:22px 20px;
}
.toc-side h4{
  font-size:12px;
  letter-spacing:.16em;
  color:var(--muted);
  font-weight:600;
  text-transform:uppercase;
  margin-bottom:14px;
}
.toc-side ul{display:flex;flex-direction:column;gap:10px;}
.toc-side a{
  font-size:13.5px;
  color:var(--muted);
  display:flex;
  gap:8px;
  align-items:baseline;
}
.toc-side a::before{
  content:"—";
  color:#C0BBB0;
  font-size:12px;
}
.toc-side a:hover{color:var(--ink);}

/* ---------- 相关推荐 ---------- */
.related{
  padding:72px 0 0;
  border-top:1px solid var(--line);
  margin-top:72px;
}
.related-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:28px;
}
.related-head h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:700;
  line-height:1.25;
  margin-top:14px;
}
.related-head .more{
  font-size:13.5px;
  color:var(--muted);
  border-bottom:1px solid var(--line);
  padding-bottom:2px;
}
.related-head .more:hover{color:var(--ink);border-bottom-color:var(--ink);}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.mini-card{
  display:flex;
  align-items:center;
  gap:16px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:14px;
  transition:all .22s var(--ease);
  box-shadow:var(--shadow-1);
}
.mini-card:hover{
  border-color:var(--green);
  transform:translateY(-3px);
  box-shadow:var(--shadow-2);
  color:var(--ink);
}
.mini-card .thumb{
  flex:0 0 100px;
  width:100px;
  height:72px;
  border-radius:10px;
  overflow:hidden;
  background:#EFEBE4;
}
.mini-card .thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .3s var(--ease);
}
.mini-card:hover .thumb img{transform:scale(1.04);}
.mini-card .mini-body{min-width:0;}
.mini-card h3{
  font-size:14.5px;
  font-weight:600;
  line-height:1.5;
  margin-bottom:6px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.mini-card .mini-time{font-size:12px;color:var(--muted);letter-spacing:.02em;}

/* ---------- CTA 条 ---------- */
.cta-band{
  margin-top:72px;
  background:var(--green);
  border-radius:var(--r-block);
  padding:56px;
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:40px;
  align-items:center;
  color:#EDEAE3;
}
.cta-band .eyebrow{color:#A9C3B7;}
.cta-band h2{
  color:#fff;
  font-size:clamp(22px,2.8vw,32px);
  line-height:1.3;
  margin:14px 0 14px;
  letter-spacing:-.01em;
}
.cta-band p{
  font-size:15px;
  line-height:1.85;
  color:#BFCEC6;
  max-width:520px;
}
.cta-actions{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:14px;
}
.cta-actions .btn-lime{width:100%;padding:16px 24px;}
.cta-actions .ghost-link{
  font-size:13.5px;
  color:#BFCEC6;
  border-bottom:1px solid rgba(255,255,255,.3);
  padding-bottom:2px;
}
.cta-actions .ghost-link:hover{color:var(--lime);border-bottom-color:var(--lime);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:#EDEAE3;
  padding:72px 0 32px;
  margin-top:104px;
}
.site-footer .wrap{max-width:1180px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
}
.site-footer .brand-main{
  display:block;
  font-size:18px;
  font-weight:800;
  color:#fff;
  letter-spacing:-.01em;
}
.site-footer .brand-sub{
  display:block;
  font-size:10.5px;
  letter-spacing:.2em;
  color:var(--lime);
  margin:10px 0 16px;
}
.footer-brand p{
  font-size:13.5px;
  line-height:1.85;
  color:#A8ADA4;
  max-width:300px;
}
.footer h4{
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:#fff;
  margin-bottom:16px;
}
.footer-list{
  display:flex;
  flex-direction:column;
  gap:10px;
  font-size:13.5px;
  color:#A8ADA4;
  line-height:1.7;
  word-break:break-all;
}
.footer-list a{color:#A8ADA4;font-size:13.5px;}
.footer-list a:hover{color:var(--lime);}
.footer-tip{
  margin-top:16px;
  font-size:12.5px;
  line-height:1.75;
  color:#7E847B;
}
.footer-bottom{
  margin-top:48px;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:12.5px;
  color:#7E847B;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .toc-col{display:none;}
  .article-main{max-width:760px;margin:0 auto;}
}

@media (max-width:1023px){
  .sidebar{display:none;}
  .main-col{margin-left:0;}
  .mobile-bar{display:flex;}
  .crumb{padding-top:24px;}
  .cta-band{padding:40px;grid-template-columns:1fr;gap:28px;}
  .cta-actions{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}

@media (max-width:767px){
  .wrap{padding:0 20px;}
  .article-title{font-size:clamp(24px,6vw,32px);}
  .article-layout{padding:32px 0 0;}
  .article-body{font-size:16.5px;}
  .related{padding-top:48px;margin-top:48px;}
  .related-grid{grid-template-columns:1fr;gap:16px;}
  .cta-band{padding:32px 24px;border-radius:16px;margin-top:48px;}
  .site-footer{padding:52px 0 28px;margin-top:64px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;gap:8px;margin-top:36px;}
  .back-row{flex-direction:column;align-items:flex-start;}
  .back-row .btn{width:100%;}
}

@media (max-width:520px){
  .mobile-bar .bar-brand{font-size:14.5px;}
  .article-meta{font-size:12.5px;}
  .tag{padding:5px 12px;font-size:12.5px;}
  .mini-card .thumb{flex-basis:84px;width:84px;height:64px;}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .mini-card:hover{transform:none;}
}

/* 入场动效 */
@keyframes riseIn{
  from{opacity:0;transform:translateY(14px);}
  to{opacity:1;transform:translateY(0);}
}
.article-head .badge,
.article-title,
.article-meta{
  animation:riseIn .55s var(--ease) both;
}
.article-title{animation-delay:.06s;}
.article-meta{animation-delay:.12s;}

/* roulang page: category1 */
:root{
  --ink:#101312;
  --lime:#C9F05F;
  --pine:#1B3A31;
  --paper:#F7F5F1;
  --card:#FFFFFF;
  --line:#E3DFD7;
  --muted:#5A5F58;
  --warn:#B4402A;
  --r-card:14px;
  --r-btn:10px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(16,19,18,.05);
  --sh-2:0 14px 34px -14px rgba(16,19,18,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-w:232px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.is-drawer-open{overflow:hidden}
img{max-width:100%;display:block;border:0}
figure{margin:0}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;color:var(--ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:none;
  box-shadow:0 0 0 2px var(--paper),0 0 0 4px var(--lime);
  border-radius:6px;
}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 40px}
@media(max-width:900px){.wrap{padding:0 24px}}
@media(max-width:640px){.wrap{padding:0 20px}}

/* ---------- 布局骨架 ---------- */
.layout{display:block}
@media(min-width:1024px){
  .layout{display:flex;align-items:flex-start}
  .content{flex:1 1 auto;min-width:0}
}
.sidebar{display:none}
@media(min-width:1024px){
  .sidebar{
    display:block;
    position:sticky;top:0;
    flex:0 0 var(--nav-w);width:var(--nav-w);
    height:100vh;
    background:var(--paper);
    border-right:1px solid var(--line);
    z-index:20;
  }
  .side-inner{display:flex;flex-direction:column;height:100%;padding:32px 24px 28px;overflow-y:auto}
}
.logo{display:inline-flex;flex-direction:column;line-height:1.15}
.logo-main{font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.logo-sub{font-size:11px;letter-spacing:.26em;color:var(--muted);margin-top:7px}
.side-nav{display:flex;flex-direction:column;margin-top:44px}
.side-nav a{
  position:relative;
  display:block;
  padding:13px 0 13px 16px;
  font-size:14px;
  line-height:1.5;
  color:var(--muted);
  transition:color .22s var(--ease),transform .22s var(--ease);
}
.side-nav a::before{
  content:"";position:absolute;left:-24px;top:0;bottom:0;width:3px;
  background:var(--lime);transform:scaleY(0);transform-origin:center;
  transition:transform .22s var(--ease);
}
.side-nav a:hover{color:var(--ink);transform:translateX(2px)}
.side-nav a:hover::before{transform:scaleY(.55)}
.side-nav a.is-active{color:var(--ink);font-weight:600}
.side-nav a.is-active::before{transform:scaleY(1)}
.side-nav a.is-active::after{
  content:"";position:absolute;left:2px;top:50%;width:6px;height:6px;
  border-radius:50%;background:var(--ink);transform:translateY(-50%);
}
.side-foot{margin-top:auto;padding-top:32px}
.side-note{margin-top:16px;font-size:12.5px;line-height:1.7;color:var(--muted)}

/* ---------- 移动端顶栏与抽屉 ---------- */
.topbar{
  display:flex;align-items:center;justify-content:space-between;
  height:56px;padding:0 20px;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:40;
}
@media(min-width:1024px){.topbar{display:none}}
.burger{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 12px;background:transparent;
  border:1px solid var(--line);border-radius:10px;
  font-size:13px;color:var(--ink);cursor:pointer;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.burger:hover{border-color:var(--pine);background:rgba(27,58,49,.05)}
.burger-lines{display:inline-flex;flex-direction:column;gap:3px}
.burger-lines i{display:block;width:14px;height:1.5px;background:var(--ink)}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:284px;max-width:86vw;
  background:var(--paper);border-right:1px solid var(--line);
  padding:28px 24px;display:flex;flex-direction:column;
  transform:translateX(-100%);
  transition:transform .28s var(--ease);
  z-index:60;overflow-y:auto;
}
.drawer.is-open{transform:none}
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,19,18,.55);
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease);
  z-index:55;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer .side-nav{margin-top:32px}
.drawer .side-nav a::before{left:-24px}
.drawer .side-foot{margin-top:auto;padding-top:32px}
@media(min-width:1024px){.drawer,.drawer-mask{display:none}}

/* ---------- 按钮与标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--pine);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:#d9fa85;color:var(--ink);transform:translateY(-2px);box-shadow:0 14px 30px -16px rgba(0,0,0,.5)}
.btn-lime:active{transform:translateY(0)}
.btn-block{width:100%}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12px;font-weight:600;letter-spacing:.14em;
  color:var(--muted);
}
.eyebrow::before{content:"";display:block;width:3px;height:12px;background:var(--lime);border-radius:1px}
.g-badge{
  display:inline-flex;align-self:flex-start;
  padding:4px 12px;border-radius:999px;
  font-size:12px;line-height:1.6;letter-spacing:.02em;
  border:1px solid var(--line);color:var(--muted);background:transparent;
}
.g-badge-lime{background:var(--lime);border-color:var(--lime);color:var(--ink);font-weight:600}

/* ---------- Hero ---------- */
.page-hero{padding:36px 0 0}
@media(min-width:1024px){.page-hero{padding:52px 0 0}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
@media(min-width:900px){.hero-grid{grid-template-columns:1.4fr .85fr;gap:56px;min-height:280px}}
.page-hero h1{
  font-size:clamp(30px,4.2vw,50px);
  font-weight:800;line-height:1.15;letter-spacing:-.02em;
  margin:16px 0 18px;max-width:15em;
}
.hero-lead{font-size:clamp(15px,1.3vw,17px);line-height:1.8;color:var(--muted);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:6px 20px;margin-top:26px;font-size:12.5px;color:var(--muted)}
.hero-meta span{position:relative;padding-left:14px}
.hero-meta span::before{content:"";position:absolute;left:0;top:50%;width:5px;height:5px;border-radius:50%;background:var(--line);transform:translateY(-50%)}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-card);border:1px solid var(--line);
  animation:fadeIn .5s var(--ease) both;
}
.hero-media::after{
  content:"";position:absolute;inset:10px -10px -10px 10px;
  border:1px solid var(--line);border-radius:var(--r-card);
  z-index:-1;pointer-events:none;
}
@keyframes fadeIn{from{opacity:0;transform:scale(1.01)}to{opacity:1;transform:none}}
.page-hero .rule{height:1px;background:var(--line);margin:44px 40px 0}
@media(max-width:900px){.page-hero .rule{margin:36px 24px 0}}
@media(max-width:640px){.page-hero .rule{margin:30px 20px 0}}

/* ---------- 筛选行 ---------- */
.filter-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px 20px;
  padding:26px 0;border-bottom:1px solid var(--line);
}
.filter-label{font-size:13px;color:var(--muted);letter-spacing:.04em}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.g-chip{
  display:inline-flex;align-items:center;
  padding:8px 18px;border-radius:999px;
  border:1px solid var(--line);background:transparent;
  font-size:13.5px;color:var(--muted);
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.g-chip:hover{border-color:var(--pine);color:var(--ink)}
.g-chip.is-on{background:var(--ink);border-color:var(--ink);color:#fff}
.filter-count{margin-left:auto;font-size:12.5px;color:var(--muted)}

/* ---------- 板块头部 ---------- */
.sec-head{max-width:660px;margin-bottom:38px}
.sec-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.22;margin:14px 0 12px}
.sec-head p{font-size:15.5px;line-height:1.8;color:var(--muted)}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.center .eyebrow{justify-content:center}

/* ---------- 卡片网格 ---------- */
.cards-sec{padding:52px 0 20px}
@media(min-width:1024px){.cards-sec{padding:76px 0 28px}}
.card-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:720px){.card-grid{grid-template-columns:1fr 1fr;gap:26px}}
.g-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.g-card:hover{transform:translateY(-3px);border-color:var(--pine);box-shadow:var(--sh-2)}
.g-card-media{display:block;overflow:hidden;background:#EDEAE3}
.g-card-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  transition:transform .42s var(--ease);
  animation:fadeIn .45s var(--ease) both;
}
.g-card:hover .g-card-media img{transform:scale(1.03)}
.g-card-body{display:flex;flex-direction:column;flex:1;padding:20px 24px 20px}
.g-card-body h3{font-size:19px;font-weight:600;line-height:1.45;margin:14px 0 10px}
.g-card-body h3 a{transition:color .22s var(--ease)}
.g-card:hover .g-card-body h3 a{color:var(--pine)}
.g-card-body p{
  font-size:14.5px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.g-card-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:auto;padding-top:16px;margin-top:20px;
  border-top:1px solid var(--line);
  font-size:12.5px;color:var(--muted);
}
.g-arrow{transition:transform .24s var(--ease);font-size:15px;color:var(--ink)}
.g-card:hover .g-arrow{transform:translateX(4px)}

/* ---------- 阶段条 ---------- */
.stages{padding:56px 0}
@media(min-width:1024px){.stages{padding:84px 0}}
.stage-list{display:grid;grid-template-columns:1fr;border-top:1px solid var(--line)}
@media(min-width:768px){.stage-list{grid-template-columns:repeat(4,1fr)}}
.stage-item{
  padding:22px 0;border-bottom:1px solid var(--line);
  transition:background .22s var(--ease);
}
@media(min-width:768px){
  .stage-item{padding:28px 26px;border-bottom:0;border-left:1px solid var(--line)}
  .stage-item:first-child{border-left:0;padding-left:0}
}
.stage-item:hover{background:rgba(27,58,49,.035)}
.stage-num{font-size:12.5px;font-weight:600;letter-spacing:.1em;color:var(--muted)}
.stage-item h3{font-size:19px;font-weight:600;margin:10px 0 8px}
.stage-item p{font-size:14.5px;line-height:1.75;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-sec{padding:56px 0}
@media(min-width:1024px){.faq-sec{padding:86px 0}}
.faq-list{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 2px;background:transparent;border:0;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--ink);
  text-align:left;cursor:pointer;
  transition:color .22s var(--ease);
}
.faq-q:hover{color:var(--pine)}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);
  transition:transform .26s var(--ease),background .26s var(--ease),opacity .26s var(--ease);
}
.faq-icon::before{left:0;top:50%;width:20px;height:1.5px;transform:translateY(-50%)}
.faq-icon::after{top:0;left:50%;width:1.5px;height:20px;transform:translateX(-50%)}
.faq-item.is-open .faq-icon::after{transform:translateX(-50%) rotate(90deg);opacity:0}
.faq-item.is-open .faq-icon::before{background:var(--pine)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{padding:0 2px 24px;font-size:15px;line-height:1.8;color:var(--muted);max-width:54em}

/* ---------- 分页 ---------- */
.g-pager{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:8px;padding:8px 0 56px}
.g-pager a,.g-pager span{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:42px;height:42px;padding:0 14px;border-radius:10px;
  font-size:14px;color:var(--muted);border:1px solid transparent;
  transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.g-pager a:hover{border-color:var(--line);color:var(--ink);background:var(--card)}
.g-pager .is-current{position:relative;color:var(--ink);font-weight:700;background:var(--card);border-color:var(--line)}
.g-pager .is-current::after{
  content:"";position:absolute;left:14px;right:14px;bottom:7px;height:2px;background:var(--lime);
}
.g-pager .is-disabled{opacity:.45;cursor:default}

/* ---------- CTA ---------- */
.cta-sec{padding:8px 0 24px}
.cta-band{
  display:grid;gap:26px;
  background:var(--pine);color:#fff;
  border-radius:var(--r-lg);
  padding:38px 28px;
}
@media(min-width:820px){
  .cta-band{grid-template-columns:1.5fr auto;align-items:center;padding:56px 64px;gap:40px}
}
.cta-band h2{color:#fff;font-size:clamp(23px,2.6vw,32px);line-height:1.25;margin-bottom:12px}
.cta-band p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.72);max-width:34em}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#fff;padding:64px 0 28px;margin-top:84px}
@media(max-width:640px){.site-footer{padding:48px 0 24px;margin-top:56px}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand .brand-main{display:block;font-size:20px;font-weight:800;letter-spacing:-.01em;color:#fff}
.footer-brand .brand-sub{display:block;margin-top:9px;font-size:11px;letter-spacing:.26em;color:rgba(255,255,255,.48)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:24em}
.site-footer .footer h4{font-size:14px;font-weight:600;letter-spacing:.04em;margin-bottom:16px;color:#fff}
.footer-list{display:flex;flex-direction:column;gap:10px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.66)}
.footer-list a{color:rgba(255,255,255,.66);transition:color .22s var(--ease)}
.footer-list a:hover{color:var(--lime)}
.footer-tip{margin-top:16px;font-size:13px;line-height:1.75;color:rgba(255,255,255,.48)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px;
  margin-top:46px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:12.5px;line-height:1.7;color:rgba(255,255,255,.45);
}

/* ---------- 断点细节 ---------- */
@media(max-width:639px){
  .g-card:hover{transform:none;box-shadow:var(--sh-1);border-color:var(--line)}
  .g-card:hover .g-card-media img{transform:none}
  .g-card-body h3{font-size:18px}
  .hero-actions .btn{width:100%}
  .filter-count{margin-left:0}
  .page-hero h1{font-size:30px}
}
#stage-list,#faq{scroll-margin-top:76px}
@media(min-width:1024px){#stage-list,#faq{scroll-margin-top:32px}}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .g-card:hover,.btn:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#101312;
  --lime:#C9F05F;
  --pine:#1B3A31;
  --paper:#F7F5F1;
  --card:#FFFFFF;
  --line:#E3DFD7;
  --muted:#5A5F58;
  --warn:#B4402A;
  --r-card:14px;
  --r-btn:10px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(16,19,18,.05);
  --sh-2:0 14px 34px -14px rgba(16,19,18,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-w:232px;
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --num:"Inter","Helvetica Neue",Arial,ui-monospace,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.22;letter-spacing:-.01em}
p{margin:0}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--pine)}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--pine);outline-offset:3px}

/* ---------- 布局骨架 ---------- */
.page{
  margin-left:var(--nav-w);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
.page-main{flex:1 1 auto}
.wrap{
  width:100%;
  max-width:1080px;
  margin:0 auto;
  padding:0 48px;
}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;
  top:0;
  left:0;
  bottom:0;
  width:var(--nav-w);
  display:flex;
  flex-direction:column;
  gap:34px;
  padding:34px 22px 26px;
  background:var(--paper);
  border-right:1px solid var(--line);
  z-index:70;
}
.brand{display:block}
.brand-main{
  display:block;
  font-size:19px;
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.2;
  color:var(--ink);
}
.brand-sub{
  display:block;
  margin-top:6px;
  font-family:var(--num);
  font-size:10px;
  font-weight:600;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
}
.nav-links{display:flex;flex-direction:column}
.nav-links a{
  position:relative;
  display:block;
  padding:11px 0 11px 16px;
  font-size:14px;
  line-height:1.5;
  color:var(--muted);
  transition:color .22s var(--ease),padding-left .22s var(--ease);
}
.nav-links a::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  width:3px;
  height:15px;
  margin-top:-7.5px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s var(--ease);
}
.nav-links a:hover,
.nav-links a:focus-visible{color:var(--ink)}
.nav-links a:hover::before,
.nav-links a:focus-visible::before{transform:scaleX(1)}
.nav-links a.is-active{color:var(--ink);font-weight:600}
.nav-links a.is-active::after{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  width:6px;
  height:6px;
  margin-top:-3px;
  border-radius:50%;
  background:var(--ink);
}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.side-contact{
  font-size:12.5px;
  line-height:1.7;
  color:var(--muted);
  letter-spacing:.01em;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 24px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  transition:transform .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-block{width:100%}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--pine);color:#fff;transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:#d8f78a;color:var(--ink);transform:translateY(-2px)}
.btn-lime:active{transform:translateY(0)}
.btn-ghost.on-dark{border-color:rgba(255,255,255,.45);color:#fff}
.btn-ghost.on-dark:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn:focus-visible{outline:none;box-shadow:0 0 0 2px var(--paper),0 0 0 4px var(--lime)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--muted);
}
.eyebrow::before{
  content:"";
  width:3px;
  height:12px;
  background:var(--lime);
  flex:0 0 auto;
}
.sec-head{max-width:660px;margin-bottom:44px}
.sec-head h2{
  margin-top:16px;
  font-size:clamp(24px,3vw,34px);
  font-weight:700;
  letter-spacing:-.02em;
}
.sec-head p{margin-top:14px;font-size:16px;color:var(--muted);line-height:1.8}

/* ---------- 分类页 Hero ---------- */
.cat-hero{
  padding:76px 0 56px;
  border-bottom:1px solid var(--line);
  background:var(--paper);
}
.cat-hero h1{
  margin-top:20px;
  font-size:clamp(30px,4.2vw,50px);
  font-weight:800;
  line-height:1.15;
  letter-spacing:-.02em;
  max-width:15em;
}
.cat-hero .lead{
  margin-top:20px;
  max-width:600px;
  font-size:17px;
  line-height:1.85;
  color:var(--muted);
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:56px;
  margin-top:44px;
}
.stat strong{
  display:block;
  font-family:var(--num);
  font-size:34px;
  font-weight:700;
  line-height:1.1;
  letter-spacing:-.03em;
  font-variant-numeric:tabular-nums;
}
.stat span{
  display:block;
  margin-top:6px;
  font-size:13px;
  color:var(--muted);
  letter-spacing:.02em;
}

/* ---------- 基础自查 ---------- */
.checks{
  display:grid;
  grid-template-columns:1fr 1fr;
  border-top:1px solid var(--line);
}
.checks li{
  padding:28px 0 30px;
  border-bottom:1px solid var(--line);
}
.checks li:nth-child(odd){padding-right:40px}
.checks li:nth-child(even){padding-left:40px;border-left:1px solid var(--line)}
.checks h3{
  font-size:18px;
  font-weight:600;
  letter-spacing:-.01em;
}
.checks h3::before{
  content:"";
  display:inline-block;
  width:7px;
  height:7px;
  margin-right:10px;
  margin-bottom:2px;
  background:var(--lime);
  border-radius:2px;
}
.checks p{
  margin-top:10px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}

/* ---------- 序号时间轴列表 ---------- */
.tl-list{
  border-top:1px solid var(--line);
  padding-left:18px;
}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:72px minmax(0,1fr);
  gap:20px;
  padding:32px 0;
  border-bottom:1px solid var(--line);
  transition:transform .22s var(--ease);
}
.tl-item::before{
  content:"";
  position:absolute;
  left:-18px;
  top:32px;
  bottom:32px;
  width:3px;
  background:var(--ink);
  transform:scaleY(0);
  transform-origin:center;
  transition:transform .22s var(--ease);
}
.tl-item:hover,
.tl-item:focus-within{transform:translateX(4px)}
.tl-item:hover::before,
.tl-item:focus-within::before{transform:scaleY(1)}
.tl-num{
  font-family:var(--num);
  font-size:40px;
  font-weight:700;
  line-height:1;
  letter-spacing:-.03em;
  color:#D8D3C8;
  font-variant-numeric:tabular-nums;
  padding-top:2px;
  transition:color .22s var(--ease);
}
.tl-item:hover .tl-num,
.tl-item:focus-within .tl-num{color:var(--pine)}
.tl-body h3{font-size:20px;font-weight:600;letter-spacing:-.01em}
.tl-body p{
  margin-top:10px;
  max-width:680px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--muted);
}
.tl-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:16px;
}
.tl-meta li{
  padding:4px 12px;
  font-size:12px;
  line-height:1.6;
  color:var(--muted);
  background:var(--card);
  border:1px solid var(--line);
  border-radius:999px;
}
.tl-item.is-extra{display:none}
.tl-list.is-expanded .tl-item.is-extra{display:grid}
.tl-more{
  display:flex;
  justify-content:center;
  margin-top:40px;
}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);max-width:860px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  width:100%;
  padding:22px 0;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  line-height:1.6;
  color:var(--ink);
  transition:color .22s var(--ease);
}
.faq-q:hover{color:var(--pine)}
.faq-icon{
  position:relative;
  flex:0 0 20px;
  width:20px;
  height:20px;
  transition:transform .28s var(--ease);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--ink);
  transition:background-color .28s var(--ease);
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-item.is-open .faq-icon::before,
.faq-item.is-open .faq-icon::after{background:var(--pine)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s var(--ease);
}
.faq-a p{
  padding:0 0 24px;
  max-width:760px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}
.faq-item.is-open .faq-a{max-height:420px}

/* ---------- CTA ---------- */
.cta-block{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
  padding:56px;
  background:var(--pine);
  color:#fff;
  border-radius:var(--r-lg);
}
.cta-block h2{
  font-size:clamp(22px,2.6vw,30px);
  letter-spacing:-.02em;
  color:#fff;
}
.cta-block p{
  margin-top:16px;
  font-size:15px;
  line-height:1.85;
  color:rgba(255,255,255,.72);
  max-width:520px;
}
.cta-actions{display:flex;flex-direction:column;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:0;
  padding:64px 0 28px;
  background:var(--ink);
  color:rgba(255,255,255,.72);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.site-footer .brand-main{
  font-size:18px;
  font-weight:800;
  color:#fff;
  letter-spacing:-.01em;
}
.site-footer .brand-sub{
  margin-top:6px;
  font-family:var(--num);
  font-size:10px;
  font-weight:600;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:rgba(255,255,255,.42);
}
.site-footer p{
  margin-top:16px;
  font-size:13.5px;
  line-height:1.85;
  color:rgba(255,255,255,.58);
}
.site-footer h4{
  margin-bottom:16px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  color:#fff;
}
.footer-list{display:flex;flex-direction:column;gap:10px;font-size:13.5px}
.footer-list a,
.footer-list span{color:rgba(255,255,255,.6);line-height:1.7}
.footer-list a:hover{color:var(--lime)}
.footer-tip{
  margin-top:14px;
  font-size:12.5px;
  line-height:1.8;
  color:rgba(255,255,255,.42);
}
.site-footer .footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  margin-top:48px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:12.5px;
  color:rgba(255,255,255,.42);
}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobile-bar{display:none}
.menu-toggle{
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:40px;
  height:40px;
  padding:0 9px;
  border-radius:8px;
  transition:background-color .22s var(--ease);
}
.menu-toggle:hover{background:rgba(16,19,18,.06)}
.menu-toggle span{
  display:block;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .22s var(--ease);
}
.menu-toggle:focus-visible{outline:2px solid var(--pine);outline-offset:2px}
.mobile-brand{
  font-size:15px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink);
}
.mobile-brand small{
  display:block;
  font-family:var(--num);
  font-size:9px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--muted);
  text-transform:uppercase;
}
.nav-scrim{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(16,19,18,.55);
  z-index:65;
}
.nav-scrim.is-on{display:block}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .wrap{padding:0 40px}
  .cat-hero h1{max-width:100%}
}

@media (max-width:1023px){
  .side-nav{
    width:268px;
    transform:translateX(-100%);
    transition:transform .3s var(--ease);
    box-shadow:0 14px 34px -14px rgba(16,19,18,.28);
  }
  .side-nav.is-open{transform:translateX(0)}
  .page{margin-left:0}
  .mobile-bar{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    height:56px;
    padding:0 20px;
    background:var(--paper);
    border-bottom:1px solid var(--line);
    position:sticky;
    top:0;
    z-index:60;
  }
  .wrap{padding:0 32px}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .cat-hero{padding:56px 0 44px}
  .cta-block{grid-template-columns:1fr;gap:32px;padding:44px 36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-stats{gap:40px}
}

@media (max-width:767px){
  .wrap{padding:0 20px}
  .section{padding:56px 0}
  .section--tight{padding:44px 0}
  .cat-hero{padding:44px 0 36px}
  .cat-hero .lead{font-size:16px}
  .hero-stats{gap:26px;margin-top:32px}
  .stat strong{font-size:28px}
  .sec-head{margin-bottom:32px}
  .checks{grid-template-columns:1fr}
  .checks li:nth-child(odd){padding-right:0}
  .checks li:nth-child(even){padding-left:0;border-left:0}
  .tl-list{padding-left:14px}
  .tl-item{grid-template-columns:46px minmax(0,1fr);gap:12px;padding:24px 0}
  .tl-item::before{left:-14px;top:24px;bottom:24px}
  .tl-num{font-size:28px}
  .tl-body h3{font-size:17.5px}
  .tl-body p{font-size:15px}
  .faq-q{font-size:15.5px;gap:16px}
  .cta-block{padding:36px 24px;border-radius:16px}
  .cta-block p{font-size:14.5px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .site-footer{padding:48px 0 24px}
  .site-footer .footer-bottom{flex-direction:column;gap:8px;margin-top:36px}
  .btn{padding:13px 20px;font-size:14.5px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .tl-item:hover,
  .btn:hover{transform:none !important}
}