/* roulang page: index */
:root{
  --ink:#123A34;
  --ink-deep:#0D2C27;
  --celadon:#2F7A6B;
  --amber:#E08A3C;
  --amber-deep:#C9762C;
  --paper:#F6F3EC;
  --sand:#EDE7DB;
  --charcoal:#14110F;
  --charcoal-soft:#221D19;
  --text:#1B1A17;
  --muted:#5A554E;
  --line:#DCD4C6;
  --danger:#B4442F;
  --success:#2F7A6B;
  --r-card:10px;
  --r-btn:8px;
  --r-img:14px;
  --shadow-1:0 1px 2px rgba(20,17,15,.05);
  --shadow-2:0 10px 24px rgba(20,17,15,.10);
  --serif:"Source Han Serif SC","Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{font-family:var(--serif);letter-spacing:.02em;margin:0;color:inherit;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px;}}

.section{padding:56px 0;}
@media (min-width:768px){.section{padding:72px 0;}}
@media (min-width:1024px){.section{padding:92px 0;}}

.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:32px;}
.section-title{font-size:clamp(24px,3vw,34px);line-height:1.32;font-weight:700;}
.section-note{font-size:14px;color:var(--muted);line-height:1.7;max-width:560px;}
.eyebrow{font-size:13px;letter-spacing:.14em;color:var(--celadon);font-weight:600;text-transform:uppercase;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--ink);
  color:var(--paper);
  border-bottom:1px solid rgba(246,243,236,.10);
  transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:0 1px 2px rgba(20,17,15,.28);}
.nav-inner{
  display:flex;align-items:center;gap:28px;
  height:var(--nav-h);transition:height .2s ease;
}
.site-header.is-stuck .nav-inner{height:56px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:7px;
  display:flex;align-items:center;justify-content:center;
  background:var(--amber);color:var(--charcoal);
  font-family:var(--serif);font-weight:700;font-size:15px;letter-spacing:.04em;
}
.brand-text{font-family:var(--serif);font-size:19px;font-weight:700;letter-spacing:.03em;color:var(--paper);}
.main-nav{display:none;align-items:center;gap:4px;flex:1;}
.nav-link{
  position:relative;padding:8px 12px;font-size:15px;color:rgba(246,243,236,.82);
  border-radius:6px;transition:color .18s ease,background .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--amber);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-link:hover{color:#fff;background:rgba(246,243,236,.08);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:#fff;}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.icon-btn{
  width:38px;height:38px;border:1px solid rgba(246,243,236,.28);border-radius:var(--r-btn);
  background:transparent;color:var(--paper);display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:border-color .18s ease,background .18s ease;
}
.icon-btn:hover{border-color:var(--amber);background:rgba(224,138,60,.14);}
.hamburger{display:flex;}
@media (min-width:1024px){
  .main-nav{display:flex;}
  .hamburger{display:none;}
}

/* buttons */
.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;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .1s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--amber);color:var(--charcoal);}
.btn-primary:hover{background:var(--amber-deep);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:transparent;color:var(--paper);border-color:var(--celadon);}
.btn-outline:hover{background:rgba(47,122,107,.18);border-color:#3E9382;}
.btn-outline-dark{background:transparent;color:var(--ink);border-color:var(--celadon);}
.btn-outline-dark:hover{background:rgba(47,122,107,.10);}
.btn-ghost{background:transparent;color:var(--celadon);padding:0 4px;border:0;height:auto;}
.btn-ghost .arrow{transition:transform .18s ease;}
.btn-ghost:hover{color:var(--amber);}
.btn-ghost:hover .arrow{transform:translateX(4px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}

/* ---------- hero ---------- */
.hero{
  background:var(--paper);
  padding-top:calc(var(--nav-h) + 24px);
  padding-bottom:48px;
  position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(220,212,198,.35) 1px,transparent 1px);
  background-size:100% 96px;opacity:.55;pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:55fr 45fr;gap:48px;}
}
.paper-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border:1px solid var(--line);border-radius:999px;
  background:var(--sand);color:var(--ink);font-size:13px;font-weight:600;letter-spacing:.04em;
}
.paper-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber);}
.hero-title{
  margin-top:22px;
  font-size:clamp(30px,4.2vw,52px);
  line-height:1.22;font-weight:700;
}
.hero-sub{margin-top:16px;font-size:clamp(16px,1.6vw,19px);color:var(--celadon);font-weight:600;line-height:1.6;}
.hero-desc{margin-top:16px;font-size:16px;color:var(--muted);max-width:560px;}
.hero-cta{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-stats{
  margin-top:36px;display:flex;flex-wrap:wrap;align-items:center;gap:0;
  border-top:1px solid var(--line);padding-top:20px;
}
.hero-stats li{
  padding:0 22px;display:flex;flex-direction:column;gap:2px;
}
.hero-stats li:first-child{padding-left:0;}
.hero-stats li + li{border-left:1px solid var(--line);}
.hero-stats strong{font-family:var(--serif);font-size:26px;line-height:1.2;color:var(--ink);}
.hero-stats span{font-size:13px;color:var(--muted);}
.hero-visual{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-visual::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:35%;
  background:linear-gradient(to top,rgba(20,17,15,.72),rgba(20,17,15,0));
}
.hero-visual figcaption{
  position:absolute;left:20px;bottom:16px;z-index:2;color:var(--paper);
  font-size:13px;letter-spacing:.04em;
}

/* ---------- claims ---------- */
.claims{background:var(--sand);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.claim-list{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.claim-list{grid-template-columns:repeat(3,1fr);gap:32px;}}
.claim-item{display:flex;gap:16px;align-items:flex-start;}
.claim-item:nth-child(2){margin-top:0;}
@media (min-width:768px){.claim-item:nth-child(2){margin-top:24px;}}
.stamp{
  flex-shrink:0;width:46px;height:46px;border-radius:4px;
  background:var(--ink);color:var(--paper);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:17px;font-weight:700;
}
.claim-item h3{font-size:19px;line-height:1.45;font-weight:600;}
.claim-item p{margin-top:6px;font-size:14.5px;color:var(--muted);}

/* ---------- story ---------- */
.story-block{display:grid;grid-template-columns:1fr;gap:28px;align-items:center;}
@media (min-width:900px){
  .story-block{grid-template-columns:1fr 1fr;gap:56px;}
  .story-block.reverse .story-media{order:2;}
}
.story-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line);}
.story-media figcaption{margin-top:12px;font-size:13px;color:var(--muted);text-align:center;}
.story-copy h2{font-size:clamp(23px,2.6vw,32px);line-height:1.34;font-weight:700;}
.story-copy p{margin-top:16px;font-size:16px;color:var(--muted);}
.story-copy .cn-list{margin-top:20px;display:grid;gap:10px;}
.story-copy .cn-list li{position:relative;padding-left:20px;font-size:15.5px;color:var(--text);}
.story-copy .cn-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--celadon);
}
.dark-section{background:var(--charcoal);color:var(--paper);}
.dark-section .story-copy p{color:rgba(246,243,236,.74);}
.dark-section .story-copy .cn-list li{color:rgba(246,243,236,.9);}
.dark-section .story-copy .cn-list li::before{background:var(--amber);}
.dark-section .story-media img{border-color:rgba(246,243,236,.16);}
.dark-section .story-media figcaption{color:rgba(246,243,236,.6);}
.dark-section .section-title{color:var(--paper);}

/* ---------- featured ---------- */
.feature-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:900px){
  .feature-grid{grid-template-columns:repeat(12,1fr);}
  .feature-main{grid-column:span 7;}
  .feature-side{grid-column:span 5;display:grid;gap:24px;}
}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--celadon);}
.card-cover{overflow:hidden;background:var(--sand);}
.card-cover img{width:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-cover img{transform:scale(1.03);}
.feature-main .card-cover img{aspect-ratio:16/10;}
.feature-side .card-cover img{aspect-ratio:16/10;}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;
  padding:4px 11px;border-radius:999px;background:var(--sand);color:var(--ink);
  font-size:12.5px;font-weight:600;letter-spacing:.03em;
}
.badge-amber{background:rgba(224,138,60,.18);color:#8A4E12;}
.card-title{font-size:20px;line-height:1.45;font-weight:600;}
.feature-main .card-title{font-size:23px;}
.card-title a{transition:color .18s ease;}
.card-title a:hover{color:var(--celadon);}
.card-text{font-size:14.5px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-link{margin-top:auto;font-size:14px;font-weight:600;color:var(--celadon);display:inline-flex;align-items:center;gap:6px;}
.card-link:hover{color:var(--amber);}
.card-link .arrow{transition:transform .18s ease;}
.card-link:hover .arrow{transform:translateX(4px);}

/* ---------- latest / cms ---------- */
.latest{background:var(--paper);border-top:1px solid var(--line);}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--muted);font-size:14px;cursor:pointer;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.chip:hover{border-color:var(--celadon);color:var(--celadon);}
.chip.is-active{background:var(--celadon);border-color:var(--celadon);color:#fff;}
.post-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:640px){.post-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr);}}
.post-card .card-cover img{aspect-ratio:16/10;}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:6px;font-size:13px;color:var(--muted);}
.post-meta time{letter-spacing:.02em;}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);background:#fff;
  padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state svg{stroke:var(--celadon);}
.empty-state p{color:var(--muted);font-size:15px;}

/* ---------- trust ---------- */
.trust{background:var(--sand);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.trust-grid{display:grid;grid-template-columns:1fr;gap:40px;}
@media (min-width:900px){.trust-grid{grid-template-columns:1fr 1fr;gap:64px;align-items:center;}}
.trust-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
@media (min-width:640px){.trust-stats{grid-template-columns:repeat(2,1fr);}}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow-1);}
.stat strong{font-family:var(--serif);font-size:32px;line-height:1.15;color:var(--ink);display:block;}
.stat strong em{font-style:normal;font-size:14px;margin-left:4px;color:var(--muted);}
.stat span{display:block;margin-top:6px;font-size:13.5px;color:var(--muted);}
.logo-wall{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
@media (min-width:640px){.logo-wall{grid-template-columns:repeat(2,1fr);}}
.logo-item{
  border:1px solid var(--line);border-radius:var(--r-card);background:#fff;
  padding:18px;display:flex;align-items:center;justify-content:center;gap:8px;
  filter:grayscale(1);opacity:.72;transition:filter .2s ease,opacity .2s ease,border-color .2s ease;
  font-size:14px;color:var(--muted);font-weight:600;letter-spacing:.02em;
}
.logo-item:hover{filter:grayscale(0);opacity:1;border-color:var(--celadon);color:var(--ink);}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;cursor:pointer;
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:17px;font-weight:600;color:var(--text);font-family:var(--sans);
}
.faq-q:hover{color:var(--celadon);}
.faq-sign{
  flex-shrink:0;width:26px;height:26px;border-radius:6px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--celadon);font-size:16px;line-height:1;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.faq-item.is-open .faq-sign{background:var(--celadon);color:#fff;border-color:var(--celadon);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a-inner{padding:0 0 22px;font-size:15.5px;color:var(--muted);background:transparent;max-width:900px;}
.faq-item.is-open .faq-a-inner{background:transparent;}

/* ---------- cta ---------- */
.cta-band{background:var(--charcoal);color:var(--paper);}
.cta-grid{display:grid;grid-template-columns:1fr;gap:28px;align-items:center;}
@media (min-width:900px){.cta-grid{grid-template-columns:1fr 1fr;gap:56px;}}
.cta-band h2{font-size:clamp(24px,3vw,34px);line-height:1.32;}
.cta-band p{margin-top:14px;font-size:15.5px;color:rgba(246,243,236,.72);}
.inline-form{display:flex;flex-wrap:wrap;gap:12px;}
.inline-form input{
  flex:1 1 240px;height:48px;padding:0 16px;border-radius:var(--r-btn);
  border:1px solid rgba(246,243,236,.22);background:var(--paper);color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.inline-form input::placeholder{color:#9C9views;}
.inline-form input::placeholder{color:#9C958B;}
.inline-form input:focus{border-color:var(--celadon);box-shadow:0 0 0 3px rgba(224,138,60,.28);outline:none;}
.form-hint{margin-top:14px;font-size:13px;color:rgba(246,243,236,.56);}
.form-msg{margin-top:12px;font-size:13px;color:var(--amber);display:none;}
.form-msg.is-error{color:#E2A08C;display:block;}
.form-msg.is-ok{color:#8FD3C0;display:block;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-deep);color:rgba(246,243,236,.82);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:44px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--amber);color:var(--charcoal);}
.footer-brand span{font-family:var(--serif);font-size:19px;font-weight:700;color:var(--paper);}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(246,243,236,.66);}
.footer-title{font-size:15px;font-weight:700;color:var(--paper);margin-bottom:16px;font-family:var(--serif);letter-spacing:.04em;}
.footer-list{display:grid;gap:10px;}
.footer-list a{font-size:14px;color:rgba(246,243,236,.72);transition:color .18s ease;}
.footer-list a:hover{color:var(--amber);}
.footer-info{display:grid;gap:12px;font-size:14px;color:rgba(246,243,236,.72);}
.footer-info strong{color:var(--paper);font-weight:600;}
.footer-bottom{
  border-top:1px solid rgba(246,243,236,.12);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(246,243,236,.52);
}
.footer-legal{display:flex;flex-wrap:wrap;gap:18px;}

/* ---------- mobile drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,17,15,.5);opacity:0;visibility:hidden;
  transition:opacity .24s ease,visibility .24s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;z-index:90;
  background:var(--ink);color:var(--paper);transform:translateX(100%);
  transition:transform .26s ease;display:flex;flex-direction:column;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid rgba(246,243,236,.14);height:56px;}
.drawer-body{padding:12px 0;overflow-y:auto;flex:1;}
.drawer-body a{display:block;font-size:18px;line-height:56px;padding:0 20px;color:rgba(246,243,236,.86);border-bottom:1px solid rgba(246,243,236,.08);}
.drawer-body a:hover,.drawer-body a.active{color:var(--amber);}
.drawer-foot{padding:16px 20px;border-top:1px solid rgba(246,243,236,.14);}
.drawer-foot .btn{width:100%;}
.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;}

/* roulang page: article */
:root{
    --ink:#123A34;
    --ink-deep:#0D2C27;
    --jade:#2F7A6B;
    --jade-soft:#E4EFEB;
    --amber:#E08A3C;
    --amber-deep:#C8752C;
    --paper:#F6F3EC;
    --sand:#EDE7DB;
    --coal:#14110F;
    --text:#1B1A17;
    --text-2:#5A554E;
    --line:#DCD4C6;
    --err:#B4442F;
    --ok:#2F7A6B;
    --r-card:10px;
    --r-btn:8px;
    --r-img:14px;
    --r-pill:999px;
    --sh-1:0 1px 2px rgba(20,17,15,.05);
    --sh-2:0 10px 24px rgba(20,17,15,.10);
    --font-title:"Source Han Serif SC","Noto Serif SC","Songti SC","STSong",serif;
    --font-body:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
    --sec:92px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--text);
    font-family:var(--font-body);
    font-size:16.5px;
    line-height:1.85;
    letter-spacing:.01em;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;height:auto;}
  a{color:inherit;text-decoration:none;}
  button,input{font-family:inherit;font-size:inherit;color:inherit;}
  h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
  ul,ol{padding:0;}
  :focus-visible{outline:2px solid var(--amber);outline-offset:2px;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 32px;
  }
  .section{padding:var(--sec) 0;}
  .section-tight{padding:64px 0;}

  /* ============ 导航 ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:var(--ink);
    color:var(--paper);
    transition:box-shadow .2s ease;
  }
  .site-header.is-stuck{box-shadow:0 1px 2px rgba(20,17,15,.18);}
  .nav-shell{
    display:flex;
    align-items:center;
    gap:28px;
    min-height:68px;
    transition:min-height .2s ease;
  }
  .site-header.is-stuck .nav-shell{min-height:56px;}
  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-family:var(--font-title);
    font-size:19px;
    font-weight:700;
    letter-spacing:.04em;
    color:var(--paper);
    white-space:nowrap;
  }
  .brand-mark{
    width:32px;height:32px;
    display:grid;place-items:center;
    border-radius:6px;
    background:var(--amber);
    color:#1B1A17;
    font-family:var(--font-title);
    font-size:18px;
    font-weight:700;
    flex:0 0 auto;
  }
  .main-nav{
    display:flex;
    align-items:center;
    gap:26px;
    margin-left:8px;
  }
  .nav-link{
    position:relative;
    padding:22px 0;
    font-size:15px;
    color:rgba(246,243,236,.82);
    transition:color .18s ease;
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:14px;
    height:2px;
    background:var(--amber);
    transform:scaleX(0);
    transform-origin:left center;
    transition:transform .18s ease;
  }
  .nav-link:hover{color:#fff;}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.active{color:#fff;}
  .nav-link.active::after{transform:scaleX(1);}
  .nav-actions{
    margin-left:auto;
    display:flex;
    align-items:center;
    gap:14px;
  }
  .nav-search{
    display:flex;
    align-items:center;
    gap:8px;
    background:rgba(246,243,236,.10);
    border:1px solid rgba(246,243,236,.22);
    border-radius:var(--r-pill);
    padding:6px 12px;
    transition:border-color .18s ease,background .18s ease;
  }
  .nav-search:focus-within{border-color:var(--amber);background:rgba(246,243,236,.16);}
  .nav-search input{
    width:132px;
    background:transparent;
    border:0;
    color:var(--paper);
    font-size:14px;
    outline:none;
  }
  .nav-search input::placeholder{color:rgba(246,243,236,.55);}
  .nav-search button{
    background:transparent;border:0;cursor:pointer;
    color:rgba(246,243,236,.75);
    display:grid;place-items:center;
    padding:2px;
  }
  .nav-search button:hover{color:var(--amber);}
  .nav-toggle{
    display:none;
    width:44px;height:44px;
    border-radius:var(--r-btn);
    border:1px solid rgba(246,243,236,.28);
    background:transparent;
    cursor:pointer;
    color:var(--paper);
    place-items:center;
  }
  .nav-toggle:hover{border-color:var(--amber);color:var(--amber);}

  /* ============ 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;
    letter-spacing:.02em;
    border:1px solid transparent;
    cursor:pointer;
    transition:background .18s ease,border-color .18s ease,color .18s ease,transform .12s ease,box-shadow .18s ease;
    white-space:nowrap;
  }
  .btn-primary{background:var(--amber);color:#1B1A17;border-color:var(--amber);}
  .btn-primary:hover{background:var(--amber-deep);border-color:var(--amber-deep);}
  .btn-primary:active{transform:translateY(1px);}
  .btn-line{background:transparent;color:var(--jade);border:1px solid var(--jade);}
  .btn-line:hover{background:var(--jade-soft);}
  .btn-line:active{transform:translateY(1px);}
  .btn-ghost{background:transparent;border:0;color:var(--jade);padding:0;height:auto;}
  .btn-ghost .arrow{transition:transform .18s ease;}
  .btn-ghost:hover{color:var(--amber);}
  .btn-ghost:hover .arrow{transform:translateX(4px);}
  .btn-sm{height:38px;padding:0 16px;font-size:14px;}

  /* ============ 移动抽屉 ============ */
  .drawer-mask{
    position:fixed;inset:0;
    background:rgba(20,17,15,.5);
    opacity:0;visibility:hidden;
    transition:opacity .22s ease,visibility .22s ease;
    z-index:70;
  }
  .drawer-mask.open{opacity:1;visibility:visible;}
  .mobile-drawer{
    position:fixed;
    top:0;right:0;
    width:82vw;
    max-width:360px;
    height:100%;
    background:var(--ink);
    color:var(--paper);
    z-index:80;
    transform:translateX(100%);
    transition:transform .26s ease;
    display:flex;
    flex-direction:column;
    padding:22px 22px 0;
    overflow-y:auto;
  }
  .mobile-drawer.open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;}
  .drawer-close{
    width:40px;height:40px;border-radius:var(--r-btn);
    border:1px solid rgba(246,243,236,.28);
    background:transparent;color:var(--paper);cursor:pointer;
    display:grid;place-items:center;
  }
  .drawer-close:hover{border-color:var(--amber);color:var(--amber);}
  .drawer-nav{display:flex;flex-direction:column;margin-top:8px;}
  .drawer-nav a{
    font-size:18px;
    line-height:56px;
    color:rgba(246,243,236,.88);
    border-bottom:1px solid rgba(246,243,236,.14);
  }
  .drawer-nav a:last-child{border-bottom:0;}
  .drawer-nav a:hover{color:var(--amber);}
  .drawer-search{
    margin-top:18px;
    display:flex;align-items:center;gap:8px;
    background:rgba(246,243,236,.10);
    border:1px solid rgba(246,243,236,.24);
    border-radius:var(--r-btn);
    padding:10px 12px;
  }
  .drawer-search input{flex:1;background:transparent;border:0;outline:none;color:var(--paper);font-size:15px;}
  .drawer-foot{
    margin-top:auto;
    padding:20px 0 24px;
    display:flex;flex-direction:column;gap:12px;
    border-top:1px solid rgba(246,243,236,.14);
  }
  .drawer-foot .btn{width:100%;}

  /* ============ 面包屑 ============ */
  .crumbs{
    padding:24px 0 0;
    font-size:13.5px;
    color:var(--text-2);
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  }
  .crumbs a{color:var(--jade);}
  .crumbs a:hover{color:var(--amber);}
  .crumbs .sep{color:var(--line);}
  .crumbs .current{color:var(--text-2);}

  /* ============ 文章头部 ============ */
  .article-head{padding:26px 0 0;}
  .article-head .badge{
    display:inline-flex;align-items:center;gap:6px;
    background:var(--sand);
    color:var(--ink);
    border-radius:var(--r-pill);
    padding:5px 14px;
    font-size:13.5px;
    font-weight:600;
    letter-spacing:.02em;
  }
  .article-head h1{
    font-family:var(--font-title);
    font-size:clamp(28px,3.8vw,42px);
    line-height:1.28;
    font-weight:700;
    letter-spacing:.02em;
    color:var(--ink);
    margin:18px 0 0;
    max-width:900px;
  }
  .article-lead{
    margin-top:16px;
    max-width:820px;
    color:var(--text-2);
    font-size:16.5px;
    line-height:1.8;
  }
  .meta-row{
    margin-top:22px;
    padding-bottom:18px;
    border-bottom:1px solid var(--line);
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px 18px;
    font-size:13.5px;
    color:var(--text-2);
  }
  .meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line);display:inline-block;}
  .meta-row time{font-variant-numeric:tabular-nums;}

  /* ============ 题图 ============ */
  .article-cover{
    margin-top:32px;
    border-radius:var(--r-img);
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:var(--sh-1);
  }
  .article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
  .article-cover figcaption{
    background:var(--paper);
    border-top:1px solid var(--line);
    padding:10px 16px;
    font-size:13px;
    color:var(--text-2);
    text-align:center;
  }

  /* ============ 正文 ============ */
  .article-wrap{
    max-width:760px;
    margin:0 auto;
    padding:48px 0 8px;
  }
  .article-body{
    font-size:17px;
    line-height:1.85;
    color:var(--text);
    word-wrap:break-word;
    overflow-wrap:break-word;
  }
  .article-body > p:first-of-type{font-size:17.5px;color:#26241F;}
  .article-body > p:first-of-type::first-letter{
    float:left;
    font-family:var(--font-title);
    font-size:52px;
    line-height:.92;
    font-weight:700;
    color:var(--ink);
    margin:6px 12px 0 0;
  }
  .article-body p{margin:0 0 1.35em;}
  .article-body h2{
    font-family:var(--font-title);
    font-size:clamp(23px,2.5vw,29px);
    line-height:1.4;
    font-weight:700;
    color:var(--ink);
    letter-spacing:.02em;
    margin:2.1em 0 .7em;
    padding-left:14px;
    border-left:4px solid var(--jade);
  }
  .article-body h3{
    font-family:var(--font-title);
    font-size:21px;
    line-height:1.5;
    font-weight:600;
    color:var(--ink);
    margin:1.7em 0 .6em;
  }
  .article-body h4{
    font-size:17.5px;
    font-weight:700;
    color:var(--ink);
    margin:1.4em 0 .5em;
  }
  .article-body ul,.article-body ol{margin:0 0 1.35em 1.5em;padding-left:0;}
  .article-body li{margin:0 0 .5em;}
  .article-body ul li{list-style:disc;}
  .article-body ol li{list-style:decimal;}
  .article-body blockquote{
    margin:1.6em 0;
    padding:18px 22px;
    background:var(--sand);
    border-left:4px solid var(--jade);
    border-radius:0 var(--r-card) var(--r-card) 0;
    color:#2C2A25;
  }
  .article-body blockquote p:last-child{margin-bottom:0;}
  .article-body img{
    border-radius:var(--r-card);
    margin:1.6em auto;
    border:1px solid var(--line);
  }
  .article-body a{
    color:var(--jade);
    text-decoration:underline;
    text-underline-offset:3px;
    transition:color .18s ease;
  }
  .article-body a:hover{color:var(--amber);}
  .article-body table{
    width:100%;
    border-collapse:collapse;
    font-size:15px;
    background:#fff;
  }
  .article-body table th,
  .article-body table td{
    border:1px solid var(--line);
    padding:10px 14px;
    text-align:left;
  }
  .article-body table th{background:var(--sand);color:var(--ink);font-weight:600;}
  .article-body .table-scroll{overflow-x:auto;margin:1.6em 0;border-radius:var(--r-card);}
  .article-body pre{
    background:#EFE9DE;
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:16px 18px;
    overflow-x:auto;
    font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
    font-size:14px;
    line-height:1.7;
    margin:1.6em 0;
  }
  .article-body code{
    font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
    background:#EFE9DE;
    border-radius:4px;
    padding:1px 5px;
    font-size:.92em;
  }
  .article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0;}
  .article-body figure{margin:1.6em 0;}
  .article-body figure img{margin:0 auto;}
  .article-body figcaption{
    text-align:center;
    font-size:13px;
    color:var(--text-2);
    margin-top:8px;
  }

  /* 空态 */
  .empty-state{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:48px 24px;
    text-align:center;
    box-shadow:var(--sh-1);
  }
  .empty-state svg{color:var(--jade);margin-bottom:14px;}
  .empty-state p{color:var(--text-2);margin-bottom:18px;}

  /* ============ 文末区域 ============ */
  .article-foot{
    max-width:760px;
    margin:0 auto;
    padding:0 0 8px;
  }
  .tag-row{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:26px;
  }
  .chip{
    display:inline-flex;
    align-items:center;
    gap:6px;
    border:1px solid var(--line);
    background:var(--paper);
    border-radius:var(--r-pill);
    padding:6px 14px;
    font-size:13.5px;
    color:var(--text-2);
    transition:border-color .18s ease,color .18s ease,background .18s ease;
  }
  .chip:hover{border-color:var(--jade);color:var(--ink);background:var(--jade-soft);}
  .chip.is-key{background:var(--jade-soft);border-color:var(--jade);color:var(--ink);font-weight:600;}
  .share-row{
    margin-top:22px;
    padding-top:20px;
    border-top:1px solid var(--line);
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:14px;
  }
  .share-row .label{font-size:13.5px;color:var(--text-2);}
  .share-boxes{display:flex;gap:8px;}
  .share-boxes span{
    width:34px;height:34px;
    border:1px solid var(--line);
    border-radius:6px;
    display:grid;place-items:center;
    color:var(--text-2);
    font-size:13px;
    background:#fff;
    transition:border-color .18s ease,color .18s ease;
  }
  .share-boxes span:hover{border-color:var(--jade);color:var(--jade);}

  /* ============ 内容说明 ============ */
  .note-band{background:var(--sand);}
  .note-head{max-width:680px;}
  .note-head h2{
    font-family:var(--font-title);
    font-size:clamp(24px,2.6vw,32px);
    line-height:1.34;
    font-weight:700;
    color:var(--ink);
    letter-spacing:.02em;
  }
  .note-head p{margin-top:14px;color:var(--text-2);font-size:16px;}
  .note-grid{
    margin-top:40px;
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:24px;
  }
  .note-card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:26px 24px;
    box-shadow:var(--sh-1);
    transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .note-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--jade);}
  .note-card .stamp{
    width:38px;height:38px;
    border-radius:6px;
    background:var(--ink);
    color:var(--paper);
    display:grid;place-items:center;
    font-family:var(--font-title);
    font-size:16px;
    font-weight:700;
    margin-bottom:16px;
  }
  .note-card h3{
    font-family:var(--font-title);
    font-size:19px;
    line-height:1.5;
    font-weight:600;
    color:var(--ink);
    margin-bottom:10px;
  }
  .note-card p{color:var(--text-2);font-size:15px;line-height:1.8;}

  /* ============ CTA ============ */
  .cta-band{background:var(--coal);color:var(--paper);}
  .cta-inner{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:48px;
    align-items:center;
  }
  .cta-inner h2{
    font-family:var(--font-title);
    font-size:clamp(24px,2.7vw,34px);
    line-height:1.32;
    font-weight:700;
    color:#F6F3EC;
    letter-spacing:.02em;
  }
  .cta-inner p{margin-top:14px;color:rgba(246,243,236,.78);font-size:15.5px;}
  .cta-form{display:flex;gap:12px;align-items:stretch;}
  .cta-form input{
    flex:1;
    min-width:0;
    height:44px;
    border-radius:var(--r-btn);
    border:1px solid rgba(246,243,236,.28);
    background:var(--paper);
    color:var(--text);
    padding:0 16px;
    outline:none;
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .cta-form input::placeholder{color:#8C8578;}
  .cta-form input:focus{border-color:var(--jade);box-shadow:0 0 0 3px rgba(224,138,60,.35);}
  .cta-hint{margin-top:12px;font-size:13px;color:rgba(246,243,236,.6);}

  /* ============ 页脚 ============ */
  .site-footer{
    background:var(--ink-deep);
    color:rgba(246,243,236,.86);
    padding:72px 0 0;
    margin-top:0;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.6fr 1fr 1fr 1fr;
    gap:40px;
  }
  .footer-brand{
    display:flex;align-items:center;gap:10px;
    font-family:var(--font-title);
    font-size:19px;font-weight:700;
    color:#F6F3EC;
    letter-spacing:.04em;
    margin-bottom:16px;
  }
  .footer-brand .brand-mark{background:var(--amber);}
  .site-footer p{font-size:14.5px;line-height:1.85;color:rgba(246,243,236,.7);}
  .footer-title{
    font-size:15px;
    font-weight:700;
    color:#F6F3EC;
    letter-spacing:.04em;
    margin-bottom:16px;
  }
  .footer-list{list-style:none;display:flex;flex-direction:column;gap:10px;}
  .footer-list a{font-size:14.5px;color:rgba(246,243,236,.72);transition:color .18s ease;}
  .footer-list a:hover{color:var(--amber);}
  .footer-info{display:flex;flex-direction:column;gap:10px;font-size:14.5px;color:rgba(246,243,236,.72);}
  .footer-info strong{color:#F6F3EC;font-weight:600;}
  .footer-bottom{
    margin-top:52px;
    border-top:1px solid rgba(246,243,236,.16);
    padding:22px 0 26px;
    display:flex;
    flex-wrap:wrap;
    gap:12px 24px;
    align-items:center;
    justify-content:space-between;
    font-size:13.5px;
    color:rgba(246,243,236,.6);
  }
  .footer-legal{display:flex;flex-wrap:wrap;gap:18px;}
  .footer-legal span{cursor:default;transition:color .18s ease;}
  .footer-legal span:hover{color:var(--amber);}

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    :root{--sec:72px;}
    .container{padding:0 24px;}
    .main-nav{gap:20px;}
    .nav-link{font-size:14.5px;}
    .nav-search{display:none;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
    .note-grid{grid-template-columns:1fr 1fr;}
    .cta-inner{grid-template-columns:1fr;gap:28px;}
  }
  @media (max-width:880px){
    .main-nav{display:none;}
    .nav-toggle{display:grid;}
    .nav-actions .btn{display:none;}
    .nav-shell{gap:16px;}
    .article-head h1{font-size:clamp(25px,5.2vw,32px);}
  }
  @media (max-width:640px){
    :root{--sec:58px;}
    body{font-size:16px;}
    .container{padding:0 20px;}
    .nav-shell{min-height:56px;}
    .brand{font-size:17px;}
    .brand-mark{width:28px;height:28px;font-size:16px;}
    .article-wrap{padding:34px 0 4px;}
    .article-body{font-size:16.5px;}
    .article-body > p:first-of-type::first-letter{font-size:44px;}
    .article-body .table-scroll{margin-left:-20px;margin-right:-20px;border-radius:0;padding:0 20px;}
    .note-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;gap:30px;}
    .cta-form{flex-direction:column;}
    .cta-form .btn{width:100%;}
    .footer-bottom{justify-content:flex-start;}
  }

/* roulang page: category1 */
:root{
  --jade:#123A34;
  --celadon:#2F7A6B;
  --amber:#E08A3C;
  --paper:#F6F3EC;
  --sand:#EDE7DB;
  --char:#14110F;
  --ink:#1B1A17;
  --muted:#5A554E;
  --line:#DCD4C6;
  --danger:#B4442F;
  --ok:#2F7A6B;
  --r-card:10px;
  --r-btn:8px;
  --r-img:14px;
  --shadow-1:0 1px 2px rgba(20,17,15,.05);
  --shadow-2:0 10px 24px rgba(20,17,15,.10);
  --font-serif:"Source Han Serif SC","Noto Serif SC","Songti SC",Georgia,serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);letter-spacing:.02em;line-height:1.3;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:92px 0;}
.section-tight{padding:72px 0;}
.sect-head{max-width:720px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--celadon);
  background:rgba(47,122,107,.10);
  border:1px solid rgba(47,122,107,.25);
  border-radius:999px;padding:5px 14px;margin-bottom:18px;
  font-family:var(--font-sans);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber);}
h2{font-size:clamp(26px,2.6vw,34px);}
h3{font-size:21px;font-weight:600;line-height:1.45;}
.lead{color:var(--muted);font-size:16.5px;}
.sect-head p{margin-top:14px;color:var(--muted);}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--jade);
  color:var(--paper);
  border-bottom:1px solid rgba(246,243,236,.10);
  transition:height .2s ease,box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:0 1px 2px rgba(20,17,15,.28);}
.header-inner{
  height:var(--nav-h);
  display:flex;align-items:center;gap:28px;
  transition:height .2s ease;
}
.site-header.is-stuck .header-inner{height:56px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;border-radius:4px;
  background:var(--paper);color:var(--jade);
  display:grid;place-items:center;
  font-family:var(--font-serif);font-size:18px;font-weight:700;
}
.brand-name{font-family:var(--font-serif);font-size:19px;letter-spacing:.04em;color:#fff;}
.main-nav{display:flex;align-items:center;gap:26px;flex:1 1 auto;}
.nav-link{
  position:relative;
  font-size:15px;color:rgba(246,243,236,.80);
  padding:6px 0;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--amber);transition:width .18s ease;
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:#fff;}
.nav-link.active::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:rgba(246,243,236,.08);
  border:1px solid rgba(246,243,236,.22);
  border-radius:999px;padding:6px 14px;
}
.nav-search svg{width:15px;height:15px;stroke:rgba(246,243,236,.75);fill:none;stroke-width:1.8;}
.nav-search input{
  background:transparent;border:0;outline:none;width:130px;
  font-size:14px;color:#fff;
}
.nav-search input::placeholder{color:rgba(246,243,236,.55);}
.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;border:1px solid transparent;
  cursor:pointer;transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .12s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--amber);color:#231300;}
.btn-primary:hover{background:#cf7c30;}
.btn-outline{border-color:var(--celadon);color:var(--celadon);background:transparent;}
.btn-outline:hover{background:rgba(47,122,107,.08);border-color:var(--celadon);}
.btn-onjade{border-color:rgba(246,243,236,.45);color:#fff;background:transparent;}
.btn-onjade:hover{background:rgba(246,243,236,.12);}
.btn-ghost{padding:0;height:auto;color:var(--celadon);font-weight:600;}
.btn-ghost:hover{color:var(--amber);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.hamburger{
  display:none;width:42px;height:42px;border-radius:var(--r-btn);
  border:1px solid rgba(246,243,236,.30);background:transparent;
  align-items:center;justify-content:center;cursor:pointer;
}
.hamburger span{display:block;width:18px;height:1.6px;background:#fff;position:relative;}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:1.6px;background:#fff;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,17,15,.45);
  opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;z-index:70;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:360px;
  background:var(--jade);color:var(--paper);z-index:80;
  transform:translateX(102%);transition:transform .26s ease;
  display:flex;flex-direction:column;padding:24px 22px;
}
.drawer.open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-close{
  width:38px;height:38px;border-radius:8px;background:transparent;
  border:1px solid rgba(246,243,236,.3);color:#fff;font-size:20px;line-height:1;cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  font-size:18px;line-height:56px;color:rgba(246,243,236,.86);
  border-bottom:1px solid rgba(246,243,236,.12);
}
.drawer-nav a.active{color:#fff;border-bottom-color:var(--amber);}
.drawer-search{
  margin-top:22px;display:flex;align-items:center;gap:8px;
  background:rgba(246,243,236,.08);border:1px solid rgba(246,243,236,.22);
  border-radius:999px;padding:8px 16px;
}
.drawer-search input{background:transparent;border:0;outline:none;width:100%;color:#fff;font-size:15px;}
.drawer-foot{margin-top:auto;padding-top:22px;}

/* Hero */
.cat-hero{
  background:var(--paper);
  padding:calc(var(--nav-h) + 44px) 0 68px;
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13.5px;color:var(--muted);margin-bottom:24px;
}
.breadcrumb a{color:var(--celadon);}
.breadcrumb a:hover{color:var(--amber);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--muted);}
.hero-grid{display:grid;grid-template-columns:1fr 340px;gap:56px;align-items:end;}
.cat-hero h1{font-size:clamp(30px,4.2vw,46px);line-height:1.22;max-width:15em;}
.cat-hero .hero-desc{margin-top:20px;max-width:640px;color:var(--muted);font-size:17px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  border:1px solid var(--line);background:#fff;
  border-radius:999px;padding:6px 14px;font-size:13.5px;color:var(--muted);
}
.chip.is-key{background:var(--sand);border-color:var(--sand);color:var(--jade);font-weight:600;}
.hero-figure{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-figure figcaption{font-size:13px;color:var(--muted);text-align:center;padding:10px 8px;background:#fff;}

/* 数据条 */
.stat-band{background:var(--sand);}
.stat-band .inner{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.stat-item{border-left:3px solid var(--celadon);padding-left:18px;}
.stat-num{font-family:var(--font-serif);font-size:38px;line-height:1.1;color:var(--jade);}
.stat-num small{font-size:15px;font-family:var(--font-sans);color:var(--muted);margin-left:4px;}
.stat-item p{margin-top:8px;font-size:14.5px;color:var(--muted);}

/* 左右对照条目 */
.ledger{border-top:1px solid var(--line);}
.ledger-row{
  display:grid;grid-template-columns:300px 1fr;gap:40px;
  padding:30px 18px 30px 18px;
  border-bottom:1px solid var(--line);
  transition:background-color .18s ease;
}
.ledger-row:hover{background:var(--sand);}
.row-head{display:flex;gap:14px;align-items:flex-start;}
.row-index{
  flex:0 0 auto;width:34px;height:34px;border-radius:4px;
  background:var(--jade);color:var(--paper);
  display:grid;place-items:center;
  font-family:var(--font-serif);font-size:15px;
}
.row-title{font-family:var(--font-serif);font-size:19px;font-weight:700;line-height:1.45;}
.row-tag{margin-top:8px;font-size:13px;color:var(--celadon);letter-spacing:.04em;}
.row-body p{color:var(--muted);font-size:15.5px;line-height:1.8;}
.row-foot{
  margin-top:14px;display:flex;flex-wrap:wrap;gap:18px;align-items:center;
  font-size:14px;
}
.row-link{color:var(--celadon);font-weight:600;border-bottom:1px solid transparent;}
.row-link:hover{color:var(--amber);border-bottom-color:var(--amber);}
.row-note{color:var(--muted);font-size:13.5px;}

/* 步骤流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--celadon);}
.step-no{
  font-family:var(--font-serif);font-size:14px;color:var(--paper);
  background:var(--celadon);width:30px;height:30px;border-radius:999px;
  display:grid;place-items:center;margin-bottom:16px;
}
.step h3{font-size:17px;}
.step p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.75;}

/* 自查清单 */
.check-band{background:var(--sand);}
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;}
.check-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 28px;box-shadow:var(--shadow-1);
}
.check-card h3{display:flex;align-items:center;gap:10px;font-size:19px;}
.dot{width:10px;height:10px;border-radius:2px;flex:0 0 auto;}
.dot-ok{background:var(--ok);}
.dot-warn{background:var(--amber);}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:14px;}
.check-list li{
  display:flex;gap:12px;font-size:15px;color:var(--muted);
  padding-bottom:14px;border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list span.mark{
  flex:0 0 auto;width:18px;height:18px;border-radius:4px;
  display:grid;place-items:center;font-size:12px;line-height:1;
  margin-top:4px;
}
.mark-ok{background:rgba(47,122,107,.14);color:var(--celadon);}
.mark-warn{background:rgba(224,138,60,.18);color:#9a5a15;}

/* 核对与纠错 */
.review-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:46px;align-items:start;}
.review-copy p{margin-top:16px;color:var(--muted);}
.review-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;}
.info-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow-1);
}
.info-card h3{font-size:18px;margin-bottom:18px;}
.info-list{display:flex;flex-direction:column;gap:16px;}
.info-list li{display:flex;justify-content:space-between;gap:16px;font-size:14.5px;border-bottom:1px solid var(--line);padding-bottom:14px;}
.info-list li:last-child{border-bottom:0;padding-bottom:0;}
.info-list .k{color:var(--muted);}
.info-list .v{color:var(--jade);font-weight:600;text-align:right;}

/* CTA */
.cta-band{background:var(--char);color:var(--paper);}
.cta-inner{
  display:grid;grid-template-columns:1.2fr auto;gap:40px;align-items:center;
}
.cta-band h2{color:#fff;font-size:clamp(24px,2.4vw,32px);}
.cta-band p{margin-top:14px;color:rgba(246,243,236,.72);max-width:640px;font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* 页脚 */
.site-footer{background:var(--jade);color:rgba(246,243,236,.78);padding:70px 0 0;font-size:14.5px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:46px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand span:last-child{font-family:var(--font-serif);font-size:19px;color:#fff;letter-spacing:.04em;}
.site-footer p{line-height:1.8;}
.footer-title{color:#fff;font-weight:600;margin-bottom:16px;font-family:var(--font-serif);font-size:16px;}
.footer-list{display:flex;flex-direction:column;gap:10px;}
.footer-list a{color:rgba(246,243,236,.78);}
.footer-list a:hover{color:var(--amber);}
.footer-info{display:flex;flex-direction:column;gap:10px;}
.footer-info strong{color:rgba(246,243,236,.92);font-weight:600;margin-right:4px;}
.footer-bottom{
  border-top:1px solid rgba(246,243,236,.14);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;
  font-size:13.5px;color:rgba(246,243,236,.60);
}
.footer-legal{display:flex;flex-wrap:wrap;gap:18px;}
.footer-legal span{cursor:default;}

@media (max-width:1024px){
  .container{padding:0 24px;}
  .main-nav{display:none;}
  .hamburger{display:inline-flex;}
  .nav-search{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:34px;align-items:start;}
  .hero-figure img{aspect-ratio:16/10;}
  .ledger-row{grid-template-columns:240px 1fr;gap:26px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-inner{grid-template-columns:1fr;gap:26px;}
  .review-grid{grid-template-columns:1fr;gap:30px;}
}
@media (max-width:768px){
  .section{padding:64px 0;}
  .section-tight{padding:56px 0;}
  .stat-band .inner{grid-template-columns:1fr;gap:22px;}
  .ledger-row{grid-template-columns:1fr;gap:14px;padding:24px 12px;}
  .check-grid{grid-template-columns:1fr;}
  .cat-hero{padding:calc(var(--nav-h) + 28px) 0 52px;}
  .cat-hero .hero-desc{font-size:16px;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  body{font-size:16px;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .brand-name{font-size:17px;}
  .hero-meta{gap:8px;}
}

/* roulang page: category2 */
:root{
  --ink:#123A34;
  --celadon:#2F7A6B;
  --amber:#E08A3C;
  --paper:#F6F3EC;
  --paper2:#EDE7DB;
  --charcoal:#14110F;
  --text:#1B1A17;
  --muted:#5A554E;
  --line:#DCD4C6;
  --danger:#B4442F;
  --ok:#2F7A6B;
  --r-card:10px;
  --r-btn:8px;
  --r-img:14px;
  --shadow-1:0 1px 2px rgba(20,17,15,.05);
  --shadow-2:0 10px 24px rgba(20,17,15,.10);
  --font-title:"Source Han Serif SC","Noto Serif SC","Songti SC",serif;
  --font-body:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;font-size:16px;}
html body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-family:var(--font-title);letter-spacing:.02em;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
::selection{background:rgba(224,138,60,.28);}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;letter-spacing:.02em;
  cursor:pointer;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .12s ease;
}
.btn-primary{background:var(--amber);color:#14110F;}
.btn-primary:hover{background:#C9762C;}
.btn-primary:active{transform:translateY(1px);}
.btn-secondary{border-color:var(--celadon);color:var(--celadon);background:transparent;}
.btn-secondary:hover{background:rgba(47,122,107,.10);}
.btn-secondary:active{transform:translateY(1px);}
.btn-ghost{padding:0;height:auto;color:var(--celadon);font-weight:600;}
.btn-ghost:hover{color:var(--amber);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--ink);color:var(--paper);
  transition:box-shadow .22s ease;
}
.site-header.is-compact{box-shadow:0 1px 2px rgba(20,17,15,.35);}
.nav-inner{display:flex;align-items:center;gap:26px;height:68px;transition:height .22s ease;}
.site-header.is-compact .nav-inner{height:56px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:6px;background:var(--amber);color:#14110F;
  display:grid;place-items:center;font-family:var(--font-title);font-size:17px;font-weight:700;
}
.brand-text{font-family:var(--font-title);font-size:19px;font-weight:700;letter-spacing:.04em;}
.main-nav{display:none;align-items:center;gap:24px;}
@media (min-width:1024px){.main-nav{display:flex;}}
.nav-link{position:relative;padding:6px 0;font-size:15px;color:rgba(246,243,236,.82);transition:color .18s ease;}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--amber);
  transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:#fff;}
.nav-link.active::after{transform:scaleX(1);}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:none;align-items:center;height:38px;padding:0 16px;border-radius:999px;
  border:1px solid rgba(246,243,236,.34);font-size:14px;color:rgba(246,243,236,.86);
  transition:border-color .18s ease,color .18s ease;
}
.nav-search:hover{border-color:var(--amber);color:#fff;}
@media (min-width:768px){.nav-search{display:inline-flex;}}
.nav-cta{height:38px;padding:0 16px;font-size:14px;}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:8px;background:transparent;
  border:1px solid rgba(246,243,236,.34);color:var(--paper);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--amber);}
@media (min-width:1024px){.nav-toggle{display:none;}}

/* ---------- 移动抽屉 ---------- */
.drawer-backdrop{
  position:fixed;inset:0;z-index:70;background:rgba(20,17,15,.52);
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;width:82vw;max-width:360px;
  background:var(--ink);color:var(--paper);padding:22px 22px 0;
  display:flex;flex-direction:column;transform:translateX(100%);
  transition:transform .28s ease;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:38px;height:38px;border-radius:8px;border:1px solid rgba(246,243,236,.3);
  background:transparent;color:var(--paper);cursor:pointer;
}
.drawer-close:hover{border-color:var(--amber);}
.drawer-nav a{
  display:block;font-size:18px;line-height:56px;color:rgba(246,243,236,.86);
  border-bottom:1px solid rgba(246,243,236,.14);
}
.drawer-nav a.active{color:#fff;border-bottom-color:var(--amber);}
.drawer-search{margin-top:22px;}
.drawer-search label{display:block;font-size:13px;color:rgba(246,243,236,.7);margin-bottom:8px;}
.drawer-search input{
  width:100%;height:44px;padding:0 14px;border-radius:var(--r-btn);
  background:var(--paper);border:1px solid var(--line);color:var(--text);
}
.drawer-search input:focus{outline:none;border-color:var(--celadon);box-shadow:0 0 0 2px rgba(224,138,60,.5);}
.drawer-footer{margin-top:auto;padding:22px 0 26px;}
.drawer-footer .btn{width:100%;}

/* ---------- 分类页 Hero ---------- */
.cat-hero{padding:56px 0 40px;background:var(--paper);}
@media (min-width:1024px){.cat-hero{padding:68px 0 52px;}}
.cat-hero-grid{display:grid;gap:32px;}
@media (min-width:1024px){
  .cat-hero-grid{grid-template-columns:minmax(0,1fr) 380px;align-items:center;gap:56px;}
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;}
.crumb a{border-bottom:1px solid transparent;transition:color .18s ease,border-color .18s ease;}
.crumb a:hover{color:var(--celadon);border-bottom-color:var(--celadon);}
.crumb .sep{color:var(--line);}
.crumb .current{color:var(--text);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:var(--paper2);border:1px solid var(--line);color:var(--ink);
  font-size:13px;letter-spacing:.06em;margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:999px;background:var(--amber);}
.cat-hero h1{font-size:clamp(30px,4vw,46px);line-height:1.24;}
.hero-lead{margin-top:18px;max-width:660px;color:var(--muted);font-size:17px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--muted);
}
.cat-hero-figure{
  border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;
  box-shadow:var(--shadow-1);position:relative;
}
.cat-hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.cat-hero-figure::after{
  content:"";position:absolute;inset:auto 0 0 0;height:35%;
  background:linear-gradient(180deg,rgba(20,17,15,0),rgba(20,17,15,.42));
}
.figure-cap{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0;}
@media (min-width:768px){.section{padding:72px 0;}}
@media (min-width:1024px){.section{padding:92px 0;}}
.section--paper2{background:var(--paper2);}
.section--dark{background:var(--charcoal);color:var(--paper);}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head h2{font-size:clamp(26px,2.8vw,34px);line-height:1.3;}
.section-head p{margin-top:14px;color:var(--muted);}
.section--dark .section-head p{color:rgba(246,243,236,.72);}
.section-index{
  display:inline-grid;place-items:center;width:40px;height:40px;border-radius:4px;
  background:var(--ink);color:var(--paper);font-family:var(--font-title);font-size:15px;
  margin-bottom:16px;
}
.section--dark .section-index{background:var(--amber);color:#14110F;}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;}
.timeline::before{
  content:"";position:absolute;left:27px;top:16px;bottom:16px;width:1px;background:var(--line);
}
.tl-item{position:relative;padding-left:74px;margin-bottom:26px;}
.tl-item:last-child{margin-bottom:0;}
.tl-dot{
  position:absolute;left:8px;top:8px;width:40px;height:40px;border-radius:999px;
  background:var(--paper);border:1px solid var(--line);display:grid;place-items:center;
  font-family:var(--font-title);font-size:15px;color:var(--celadon);box-shadow:var(--shadow-1);
}
.tl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.tl-card:hover{transform:translateY(-2px);border-color:var(--celadon);box-shadow:var(--shadow-2);}
.tl-card h3{font-size:21px;line-height:1.45;}
.tl-meta{display:inline-flex;align-items:center;gap:8px;margin-top:8px;font-size:13px;color:var(--muted);}
.tl-meta .dotline{width:14px;height:1px;background:var(--line);}
.tl-card p{margin-top:12px;color:var(--muted);font-size:16px;}
.point-list{margin-top:14px;display:grid;gap:8px;}
.point-list li{position:relative;padding-left:18px;font-size:15px;color:var(--text);}
.point-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:999px;background:var(--celadon);
}
.link-arrow{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;font-weight:600;color:var(--celadon);}
.link-arrow::after{content:"→";transition:transform .18s ease;}
.link-arrow:hover{color:var(--amber);}
.link-arrow:hover::after{transform:translateX(3px);}

/* ---------- 材料卡片 ---------- */
.material-grid{display:grid;gap:24px;}
@media (min-width:768px){.material-grid{grid-template-columns:1fr 1fr;}}
.material-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.material-card:hover{transform:translateY(-2px);border-color:var(--celadon);box-shadow:var(--shadow-2);}
.material-card figure{margin:0;overflow:hidden;}
.material-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease;}
.material-card:hover img{transform:scale(1.03);}
.material-body{padding:22px 24px 26px;}
.material-body h3{font-size:21px;}
.material-body p{margin-top:12px;color:var(--muted);font-size:16px;}

/* ---------- 核对清单 ---------- */
.check-grid{display:grid;gap:14px;}
@media (min-width:768px){.check-grid{grid-template-columns:1fr 1fr;gap:14px 28px;}}
.check-item{
  display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:16px 18px;font-size:15px;box-shadow:var(--shadow-1);
  transition:border-color .18s ease,transform .18s ease;
}
.check-item:hover{border-color:var(--celadon);transform:translateY(-2px);}
.check-icon{
  flex:0 0 auto;width:22px;height:22px;border-radius:999px;background:#E4EFEA;color:var(--celadon);
  display:grid;place-items:center;font-size:12px;margin-top:5px;
}

/* ---------- 退回原因条目 ---------- */
.reason-list{border-top:1px solid var(--line);}
.reason-item{
  display:grid;gap:6px 24px;padding:22px 10px;border-bottom:1px solid var(--line);
  transition:background-color .18s ease;
}
.reason-item:hover{background:#fff;}
@media (min-width:900px){
  .reason-item{grid-template-columns:52px 240px minmax(0,1fr) 110px;align-items:start;}
  .reason-item .reason-link{margin-top:0;justify-self:end;}
}
.reason-num{font-family:var(--font-title);font-size:19px;color:var(--celadon);line-height:1.6;}
.reason-item h3{font-size:18px;line-height:1.6;}
.reason-item p{font-size:15px;color:var(--muted);}
.reason-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--celadon);
}
.reason-link::after{content:"→";transition:transform .18s ease;}
.reason-link:hover{color:var(--amber);}
.reason-link:hover::after{transform:translateX(3px);}

/* ---------- 数据 ---------- */
.stat-band{display:grid;gap:26px;}
@media (min-width:640px){.stat-band{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.stat-band{grid-template-columns:repeat(4,1fr);gap:32px;}}
.stat-num{font-family:var(--font-title);font-size:clamp(32px,3.4vw,44px);line-height:1.1;color:var(--ink);}
.stat-num .unit{font-family:var(--font-body);font-size:15px;color:var(--muted);margin-left:6px;}
.stat-label{margin-top:8px;font-size:14px;color:var(--muted);}
.stat-cell{padding-top:20px;border-top:1px solid var(--line);}

/* ---------- CTA ---------- */
.cta-band{
  background:#E4EFEA;border:1px solid #CFE1D9;border-radius:var(--r-img);
  padding:32px 26px;display:grid;gap:24px;
}
@media (min-width:1024px){.cta-band{grid-template-columns:1.05fr .95fr;align-items:center;padding:46px 48px;}}
.cta-band h2{font-size:clamp(24px,2.4vw,30px);line-height:1.35;}
.cta-band p{margin-top:14px;color:var(--muted);font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
@media (min-width:1024px){.cta-actions{justify-content:flex-end;}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--paper);padding:60px 0 26px;}
.footer-grid{display:grid;gap:34px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}}
.footer-brand{
  display:flex;align-items:center;gap:10px;margin-bottom:16px;
  font-family:var(--font-title);font-size:20px;font-weight:700;letter-spacing:.03em;
}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:6px;background:var(--amber);color:#14110F;font-size:16px;}
.site-footer p{color:rgba(246,243,236,.72);font-size:15px;}
.footer-title{font-family:var(--font-title);font-size:16px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-list li{margin-bottom:10px;}
.footer-list a{color:rgba(246,243,236,.72);font-size:15px;transition:color .18s ease;}
.footer-list a:hover{color:var(--amber);}
.footer-info{display:grid;gap:10px;font-size:15px;color:rgba(246,243,236,.72);}
.footer-info strong{color:var(--paper);font-weight:600;}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(246,243,236,.16);
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;
  font-size:13px;color:rgba(246,243,236,.6);
}
.footer-legal{display:flex;flex-wrap:wrap;gap:18px;}

@media (max-width:520px){
  html body{font-size:16px;}
  .tl-item{padding-left:60px;}
  .timeline::before{left:23px;}
  .tl-dot{left:4px;width:38px;height:38px;}
  .cat-hero h1{font-size:28px;}
}

/* roulang page: category3 */
:root{
  --ink:#123A34;
  --celadon:#2F7A6B;
  --amber:#E08A3C;
  --paper:#F6F3EC;
  --sand:#EDE7DB;
  --charcoal:#14110F;
  --text:#1B1A17;
  --muted:#5A554E;
  --line:#DCD4C6;
  --error:#B4442F;
  --ok:#2F7A6B;
  --r-card:10px;
  --r-btn:8px;
  --r-img:14px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,17,15,.05);
  --sh-2:0 10px 24px rgba(20,17,15,.10);
  --font-head:"Source Han Serif SC","Noto Serif SC","Songti SC",serif;
  --font-body:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{font-family:var(--font-head);color:var(--ink);margin:0;line-height:1.32;letter-spacing:.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-sand{background:var(--sand)}
.section-dark{background:var(--charcoal);color:#F1ECE2}
.section-dark h2,.section-dark h3{color:#F6F3EC}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--ink);
  border-bottom:1px solid rgba(246,243,236,.10);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:var(--nav-h);
  transition:height .2s ease;
}
.site-header.is-stuck .header-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:32px;height:32px;border-radius:8px;
  background:var(--amber);color:var(--charcoal);
  font-family:var(--font-head);font-weight:700;font-size:18px;
  display:flex;align-items:center;justify-content:center;
}
.brand-name{
  font-family:var(--font-head);font-weight:700;font-size:19px;
  color:#F6F3EC;letter-spacing:.04em;white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;
  padding:0 12px;
  height:38px;
  display:inline-flex;align-items:center;
  font-size:15px;color:rgba(246,243,236,.80);
  border-radius:6px;
  transition:color .18s ease,background .18s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--amber);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.nav-link:hover{color:#F6F3EC;background:rgba(246,243,236,.06)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:#F6F3EC;font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;
  background:rgba(246,243,236,.10);
  border:1px solid rgba(246,243,236,.18);
  border-radius:var(--r-pill);
  height:38px;padding:0 6px 0 16px;
  transition:border-color .18s ease,background .18s ease;
}
.nav-search:focus-within{border-color:var(--celadon);background:rgba(246,243,236,.16)}
.nav-search input{
  background:transparent;border:0;width:170px;
  font-size:14px;color:#F6F3EC;
}
.nav-search input::placeholder{color:rgba(246,243,236,.55)}
.nav-search button{
  border:0;background:transparent;color:var(--amber);
  cursor:pointer;font-size:14px;padding:6px 10px;border-radius:var(--r-pill);
}
.nav-toggle{
  display:none;
  width:40px;height:40px;border-radius:8px;
  background:rgba(246,243,236,.10);
  border:1px solid rgba(246,243,236,.18);
  color:#F6F3EC;cursor:pointer;font-size:18px;line-height:1;
}
.mobile-drawer{
  position:fixed;top:0;right:0;z-index:80;
  width:82vw;max-width:360px;height:100vh;
  background:var(--ink);color:#F6F3EC;
  transform:translateX(102%);
  transition:transform .26s ease;
  display:flex;flex-direction:column;
  padding:20px 22px 0;
  box-shadow:-8px 0 30px rgba(20,17,15,.28);
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-close{
  width:38px;height:38px;border-radius:8px;
  background:rgba(246,243,236,.10);border:1px solid rgba(246,243,236,.18);
  color:#F6F3EC;cursor:pointer;font-size:18px;
}
.drawer-nav{display:flex;flex-direction:column;flex:1;overflow-y:auto}
.drawer-nav a{
  font-size:18px;line-height:56px;
  border-bottom:1px solid rgba(246,243,236,.10);
  color:rgba(246,243,236,.88);
}
.drawer-nav a.active{color:var(--amber);font-weight:600}
.drawer-foot{padding:16px 0 24px;border-top:1px solid rgba(246,243,236,.14)}
.mask{
  position:fixed;inset:0;background:rgba(20,17,15,.5);
  opacity:0;pointer-events:none;transition:opacity .22s ease;z-index:70;
}
.mask.open{opacity:1;pointer-events:auto}

/* ---------- 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;font-family:var(--font-body);
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,border-color .18s ease,color .18s ease,transform .12s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--amber);color:#1B1A17;border-color:var(--amber)}
.btn-primary:hover{background:#CC7A2F;border-color:#CC7A2F}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--celadon)}
.btn-outline:hover{background:rgba(47,122,107,.08);border-color:var(--ink);color:var(--ink)}
.btn-outline:active{transform:translateY(1px)}
.btn-ghost-light{
  background:transparent;color:#F6F3EC;
  border-color:rgba(246,243,236,.42);
}
.btn-ghost-light:hover{border-color:var(--amber);color:var(--amber)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--celadon);font-size:15px;font-weight:600;
  border-bottom:1px solid rgba(47,122,107,.35);
  padding-bottom:2px;
  transition:color .18s ease,border-color .18s ease;
}
.link-arrow::after{content:"→";transition:transform .18s ease}
.link-arrow:hover{color:var(--amber);border-color:var(--amber)}
.link-arrow:hover::after{transform:translateX(3px)}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  background:var(--sand);
  border-bottom:1px solid var(--line);
  padding:calc(var(--nav-h) + 30px) 0 44px;
}
.cat-hero-inner{
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);
  gap:48px;align-items:center;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);margin-bottom:18px;
}
.breadcrumb a{color:var(--celadon)}
.breadcrumb a:hover{color:var(--amber)}
.breadcrumb .sep{color:#A79E8F}
.breadcrumb .current{color:var(--muted)}
.cat-hero h1{
  font-size:clamp(30px,4.2vw,44px);
  line-height:1.22;font-weight:700;margin-bottom:16px;
}
.cat-hero .lead{
  font-size:16.5px;line-height:1.85;color:var(--muted);max-width:640px;
}
.hero-figure{
  border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);
  background:#fff;
}
.hero-figure img{width:100%;height:210px;object-fit:cover}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.tag{
  display:inline-flex;align-items:center;
  height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.tag-amber{background:rgba(224,138,60,.14);border-color:rgba(224,138,60,.4);color:#8A4E15}

/* ---------- 节点概览 ---------- */
.node-strip{background:var(--paper);padding:72px 0 8px}
.strip-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;border-top:1px solid var(--line);
}
.strip-item{
  padding:26px 22px 26px 0;
  border-right:1px solid var(--line);
}
.strip-item:last-child{border-right:0}
.strip-no{
  font-family:var(--font-head);font-size:13px;color:var(--amber);
  letter-spacing:.14em;font-weight:700;
}
.strip-item h3{font-size:19px;margin:8px 0 6px}
.strip-item p{font-size:14.5px;color:var(--muted);line-height:1.75}
.strip-metric{
  font-family:var(--font-head);font-size:15px;color:var(--celadon);
  margin-top:10px;letter-spacing:.02em;
}

/* ---------- 图文交错主体 ---------- */
.stagger-section{padding:88px 0 24px}
.stagger-block{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;align-items:start;
  padding:44px 0;
  border-top:1px solid var(--line);
}
.stagger-block.reverse .stagger-copy{order:2}
.stagger-block.reverse .stagger-media{order:1}
.stamp{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:4px;
  background:var(--ink);color:var(--amber);
  font-family:var(--font-head);font-weight:700;font-size:17px;
  letter-spacing:.04em;margin-bottom:16px;
}
.stagger-copy h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:12px}
.stagger-copy>p{color:var(--muted);font-size:16.5px;margin-bottom:22px}
.stagger-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);background:#fff}
.stagger-media img{width:100%;height:280px;object-fit:cover;transition:transform .35s ease}
.stagger-media:hover img{transform:scale(1.03)}
.stagger-media figcaption{
  font-size:13px;color:var(--muted);text-align:center;
  padding:10px 14px;background:#fff;border-top:1px solid var(--line);
}

/* ---------- 条目列表 ---------- */
.entry-list{border-top:1px solid var(--line)}
.entry-item{
  display:grid;grid-template-columns:38px minmax(0,1fr) auto;
  gap:16px;align-items:start;
  padding:16px 12px 16px 0;
  border-bottom:1px solid var(--line);
  transition:background .18s ease;
}
.entry-item:hover{background:rgba(237,231,219,.55)}
.entry-no{
  font-family:var(--font-head);font-size:14px;font-weight:700;
  color:var(--celadon);padding-top:3px;
}
.entry-body h3{font-size:17px;margin-bottom:4px;font-family:var(--font-body);font-weight:700;color:var(--text)}
.entry-body p{font-size:14.5px;color:var(--muted);line-height:1.75}
.entry-link{
  font-size:14px;color:var(--celadon);white-space:nowrap;
  border-bottom:1px solid rgba(47,122,107,.35);
  transition:color .18s ease,border-color .18s ease;
  padding-top:3px;
}
.entry-link:hover{color:var(--amber);border-color:var(--amber)}

/* ---------- 对照矩阵 ---------- */
.matrix{display:flex;flex-direction:column;gap:12px;margin-top:34px}
.matrix-row{
  display:grid;grid-template-columns:56px minmax(0,1fr) 120px auto;
  gap:20px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.matrix-row:hover{transform:translateY(-2px);border-color:var(--celadon);box-shadow:var(--sh-2)}
.matrix-no{
  font-family:var(--font-head);font-size:16px;font-weight:700;
  color:var(--ink);background:var(--sand);
  width:44px;height:44px;border-radius:4px;
  display:flex;align-items:center;justify-content:center;
}
.matrix-main h3{font-size:18px;margin-bottom:4px}
.matrix-main p{font-size:14.5px;color:var(--muted);line-height:1.72}
.matrix-meta{
  font-size:14px;color:var(--celadon);font-family:var(--font-head);
  text-align:left;
}

.section-head{margin-bottom:8px}
.section-head .eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.16em;
  color:var(--amber);font-weight:700;margin-bottom:10px;
  font-family:var(--font-head);
}
.section-head h2{font-size:clamp(26px,3vw,34px);margin-bottom:10px}
.section-head p{color:var(--muted);font-size:16px;max-width:720px}

/* ---------- 情形卡片 ---------- */
.case-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;margin-top:34px;
}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:10px;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.case-card:hover{transform:translateY(-2px);border-color:var(--celadon);box-shadow:var(--sh-2)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);background:var(--sand);color:var(--ink);
  font-size:12.5px;font-weight:600;width:fit-content;
}
.case-card h3{font-size:17.5px;font-family:var(--font-body);font-weight:700;color:var(--text)}
.case-card p{font-size:14.5px;color:var(--muted);line-height:1.75}
.case-card .link-arrow{margin-top:auto;font-size:14px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:34px auto 0}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:#fff;margin-bottom:12px;overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item.is-open{border-color:var(--celadon);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  padding:18px 22px;font-size:17px;font-weight:700;color:var(--text);
  font-family:var(--font-body);
}
.faq-q .sign{
  flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);color:var(--celadon);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.faq-item.is-open .faq-q .sign{background:var(--celadon);color:#fff;border-color:var(--celadon)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .28s ease;
  background:var(--paper);
}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{padding:0 22px 20px;font-size:15.5px;color:var(--muted);line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{background:var(--charcoal);padding:76px 0;color:#F1ECE2}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-inner h2{color:#F6F3EC;font-size:clamp(24px,2.8vw,32px);margin-bottom:10px}
.cta-inner p{color:rgba(241,236,226,.72);font-size:15.5px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--charcoal);color:rgba(241,236,226,.78);padding:64px 0 0;border-top:1px solid rgba(246,243,236,.10)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-head);font-size:19px;font-weight:700;color:#F6F3EC;
  margin-bottom:14px;
}
.footer-grid p{font-size:14.5px;line-height:1.85;color:rgba(241,236,226,.70)}
.footer-title{
  font-size:14px;letter-spacing:.12em;color:#F6F3EC;
  font-weight:700;margin-bottom:14px;font-family:var(--font-head);
}
.footer-list li{margin-bottom:10px}
.footer-list a{font-size:14.5px;color:rgba(241,236,226,.72);transition:color .18s ease}
.footer-list a:hover{color:var(--amber)}
.footer-info{display:flex;flex-direction:column;gap:10px;font-size:14.5px;color:rgba(241,236,226,.70)}
.footer-info strong{color:#F6F3EC;font-weight:600}
.footer-bottom{
  margin-top:48px;padding:20px 0;
  border-top:1px solid rgba(246,243,236,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(241,236,226,.58);
}
.footer-legal{display:flex;gap:18px;flex-wrap:wrap}
.footer-legal span{cursor:pointer;transition:color .18s ease}
.footer-legal span:hover{color:var(--amber)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding:0 26px}
  .main-nav{display:none}
  .nav-search{display:none}
  .nav-toggle{display:flex;align-items:center;justify-content:center}
  .section{padding:72px 0}
  .cat-hero-inner{grid-template-columns:1fr;gap:28px}
  .hero-figure img{height:240px}
  .strip-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .strip-item{border-bottom:1px solid var(--line)}
  .strip-item:nth-child(2n){border-right:0}
  .stagger-block{gap:36px}
  .case-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .matrix-row{grid-template-columns:48px minmax(0,1fr) auto}
  .matrix-meta{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  body{font-size:16px}
  .section{padding:60px 0}
  .container{padding:0 20px}
  .cat-hero{padding:calc(var(--nav-h) + 22px) 0 36px}
  .stagger-block{grid-template-columns:1fr;gap:26px}
  .stagger-block.reverse .stagger-copy{order:1}
  .stagger-block.reverse .stagger-media{order:2}
  .stagger-media img{height:220px}
  .entry-item{grid-template-columns:30px minmax(0,1fr);gap:12px}
  .entry-link{grid-column:2;padding-top:6px}
  .matrix-row{grid-template-columns:1fr;gap:12px}
  .matrix-no{width:38px;height:38px;font-size:15px}
  .case-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .brand-name{font-size:17px}
  .strip-grid{grid-template-columns:1fr}
  .strip-item{border-right:0}
  .cat-hero h1{font-size:29px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}

/* roulang page: category4 */
:root{
  --ink:#123A34;
  --celadon:#2F7A6B;
  --amber:#E08A3C;
  --amber-deep:#C9742A;
  --paper:#F6F3EC;
  --sand:#EDE7DB;
  --charcoal:#14110F;
  --text:#1B1A17;
  --muted:#5A554E;
  --line:#DCD4C6;
  --danger:#B4442F;
  --success:#2F7A6B;
  --cream:#F3EFE6;
  --radius-card:10px;
  --radius-btn:8px;
  --radius-img:14px;
  --shadow-1:0 1px 2px rgba(20,17,15,.05);
  --shadow-2:0 10px 24px rgba(20,17,15,.10);
  --font-serif:"Source Han Serif SC","Noto Serif SC","Songti SC",Georgia,serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.section{padding:88px 0}
.section-sm{padding:64px 0}
.section-tight{padding:56px 0}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(246,243,236,.7);
  font-size:13px;
  line-height:1.6;
  letter-spacing:.06em;
  color:var(--muted);
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:var(--amber);
}
h1,h2,h3,.display{font-family:var(--font-serif);letter-spacing:.02em;color:var(--ink)}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.22;font-weight:700}
h2{font-size:clamp(26px,3vw,36px);line-height:1.3;font-weight:700}
h3{font-size:22px;line-height:1.45;font-weight:600}
.lead{font-size:17px;line-height:1.9;color:var(--muted);max-width:760px}
.muted{color:var(--muted)}
.small{font-size:13.5px;line-height:1.6;color:var(--muted)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--ink);
  color:var(--cream);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 1px 2px rgba(20,17,15,.22)}
.header-inner{
  display:flex;
  align-items:center;
  gap:26px;
  min-height:68px;
  transition:min-height .2s ease;
}
.site-header.is-scrolled .header-inner{min-height:56px}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  font-family:var(--font-serif);
  font-size:19px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--cream);
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;height:34px;
  border-radius:6px;
  background:var(--amber);
  color:var(--charcoal);
  font-family:var(--font-serif);
  font-size:18px;
  font-weight:700;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  flex-wrap:wrap;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 12px;
  font-size:15px;
  line-height:1.5;
  color:rgba(243,239,230,.82);
  border-radius:6px;
  transition:color .18s ease,background .18s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  background:var(--amber);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .18s ease;
}
.nav-link:hover{color:var(--cream);background:rgba(243,239,230,.07)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--cream)}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:6px;
  padding:0 12px;
  height:38px;
  border:1px solid rgba(243,239,230,.24);
  border-radius:var(--radius-btn);
  background:rgba(243,239,230,.06);
  transition:border-color .18s ease,background .18s ease;
}
.nav-search:focus-within{border-color:var(--celadon);background:rgba(243,239,230,.12)}
.nav-search input{
  width:132px;
  border:0;
  background:transparent;
  font-size:14px;
  color:var(--cream);
}
.nav-search input::placeholder{color:rgba(243,239,230,.55)}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid rgba(243,239,230,.24);
  border-radius:var(--radius-btn);
  background:transparent;
  cursor:pointer;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  display:block;
  width:18px;height:1.5px;
  background:var(--cream);
  transition:transform .2s ease;
}
.nav-toggle span::before{content:"";transform:translateY(-6px)}
.nav-toggle span::after{content:"";transform:translateY(4.5px)}

.drawer-mask{
  position:fixed;inset:0;
  background:rgba(20,17,15,.45);
  opacity:0;visibility:hidden;
  transition:opacity .2s ease,visibility .2s ease;
  z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  width:82vw;
  max-width:360px;
  background:var(--ink);
  color:var(--cream);
  transform:translateX(100%);
  transition:transform .24s ease;
  z-index:100;
  display:flex;
  flex-direction:column;
  padding:20px 22px 0;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.drawer-close{
  width:40px;height:40px;
  border:1px solid rgba(243,239,230,.24);
  border-radius:var(--radius-btn);
  background:transparent;
  cursor:pointer;
  font-size:18px;
  line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;margin:6px 0 14px;overflow-y:auto}
.drawer-nav a{
  font-size:18px;
  line-height:56px;
  border-bottom:1px solid rgba(243,239,230,.12);
}
.drawer-nav a.active{color:var(--amber)}
.drawer-search{
  display:flex;align-items:center;
  height:44px;
  padding:0 14px;
  border:1px solid rgba(243,239,230,.24);
  border-radius:var(--radius-btn);
  background:rgba(243,239,230,.06);
  margin-bottom:16px;
}
.drawer-search input{border:0;background:transparent;width:100%;font-size:15px;color:var(--cream)}
.drawer-foot{
  margin-top:auto;
  padding:16px 0 22px;
  border-top:1px solid rgba(243,239,230,.14);
}
.drawer-foot .btn{width:100%;justify-content:center}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .12s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--amber);color:var(--charcoal)}
.btn-primary:hover{background:var(--amber-deep)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:transparent;
  color:var(--cream);
  border-color:rgba(243,239,230,.42);
}
.btn-ghost:hover{border-color:var(--amber);color:#fff}
.btn-outline{
  background:transparent;
  color:var(--ink);
  border-color:var(--celadon);
}
.btn-outline:hover{background:var(--celadon);color:var(--cream)}
.btn-soft{
  background:var(--sand);
  color:var(--ink);
  border-color:var(--line);
}
.btn-soft:hover{border-color:var(--celadon);color:var(--celadon)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;font-weight:600}
.btn-amber-ink{background:var(--amber);color:var(--charcoal)}
.btn-amber-ink:hover{background:var(--amber-deep)}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
  color:var(--celadon);
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.link-arrow:hover{color:var(--amber);border-color:var(--amber)}
.link-arrow span{transition:transform .18s ease}
.link-arrow:hover span{transform:translateX(3px)}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13.5px;
  line-height:1.6;
  color:var(--muted);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--celadon)}
.breadcrumb a:hover{color:var(--amber)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--text)}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  background:linear-gradient(180deg,#F1ECE2 0%,var(--sand) 100%);
  border-bottom:1px solid var(--line);
  padding:40px 0 44px;
}
.cat-hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:44px;
  align-items:center;
}
.cat-hero h1{margin-bottom:16px}
.cat-hero .lead{font-size:16.5px;max-width:640px}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 13px;
  border-radius:999px;
  background:rgba(47,122,107,.10);
  color:var(--ink);
  font-size:13px;
  line-height:1.6;
  letter-spacing:.02em;
}
.tag-amber{background:rgba(224,138,60,.16);color:#7A4413}
.hero-figure{
  border-radius:var(--radius-img);
  border:1px solid var(--line);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  background:#fff;
}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-figure figcaption{
  padding:10px 14px;
  font-size:13px;
  line-height:1.6;
  color:var(--muted);
  background:rgba(255,255,255,.72);
  border-top:1px solid var(--line);
}

/* ---------- 双栏目录 + 条目 ---------- */
.entry-section{background:var(--paper)}
.entry-layout{
  display:grid;
  grid-template-columns:264px minmax(0,1fr);
  gap:52px;
  align-items:start;
}
.toc{
  position:sticky;
  top:96px;
  padding:22px 20px;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:#fff;
  box-shadow:var(--shadow-1);
}
.toc-title{
  font-family:var(--font-serif);
  font-size:15px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--ink);
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
  margin-bottom:10px;
}
.toc-nav{display:flex;flex-direction:column;gap:2px}
.toc-link{
  display:flex;
  align-items:center;
  gap:10px;
  padding:9px 10px;
  border-radius:6px;
  font-size:14.5px;
  line-height:1.6;
  color:var(--muted);
  transition:background .18s ease,color .18s ease;
}
.toc-link .toc-index{
  font-family:var(--font-serif);
  font-size:13px;
  color:var(--celadon);
  min-width:20px;
}
.toc-link:hover{background:var(--sand);color:var(--ink)}
.toc-link.is-active{background:var(--sand);color:var(--ink);font-weight:600}
.toc-link.is-active .toc-index{color:var(--amber)}
.toc-note{
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  line-height:1.7;
  color:var(--muted);
}

.entry-main{display:flex;flex-direction:column;gap:56px}
.entry-group h2{
  font-size:26px;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
  display:flex;
  align-items:baseline;
  gap:12px;
}
.entry-group h2 .group-index{
  font-family:var(--font-serif);
  font-size:15px;
  color:var(--amber);
  letter-spacing:.08em;
}
.entry-item{
  display:grid;
  grid-template-columns:52px minmax(0,1fr) 116px;
  gap:20px;
  align-items:start;
  padding:20px 16px 20px 0;
  border-bottom:1px solid var(--line);
  transition:background .18s ease;
}
.entry-item:hover{background:var(--sand)}
.entry-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:4px;
  background:var(--ink);
  color:var(--cream);
  font-family:var(--font-serif);
  font-size:15px;
  letter-spacing:.04em;
}
.entry-body h3{font-size:19px;line-height:1.5;margin-bottom:6px}
.entry-body p{font-size:15px;line-height:1.85;color:var(--muted)}
.entry-action{justify-self:end;padding-top:8px;text-align:right}

/* ---------- 受理节奏（数据 + 流程） ---------- */
.pace-section{background:var(--charcoal);color:var(--cream)}
.pace-section h2,.pace-section h3{color:var(--cream)}
.pace-section .lead{color:rgba(243,239,230,.76)}
.pace-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
}
.pace-head .lead{max-width:560px;margin-top:14px}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;
  background:rgba(243,239,230,.16);
  border:1px solid rgba(243,239,230,.16);
  border-radius:var(--radius-card);
  overflow:hidden;
  margin-bottom:52px;
}
.stat{
  background:var(--charcoal);
  padding:26px 22px;
}
.stat-value{
  font-family:var(--font-serif);
  font-size:40px;
  line-height:1.1;
  color:var(--cream);
}
.stat-value .unit{font-size:16px;margin-left:4px;color:var(--amber)}
.stat-label{
  margin-top:8px;
  font-size:13.5px;
  line-height:1.6;
  color:rgba(243,239,230,.66);
}
.flow{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.flow-step{
  padding:24px 22px;
  border:1px solid rgba(243,239,230,.18);
  border-radius:var(--radius-card);
  background:rgba(243,239,230,.04);
  transition:border-color .18s ease,transform .18s ease;
}
.flow-step:hover{border-color:var(--amber);transform:translateY(-2px)}
.flow-step .step-tag{
  font-family:var(--font-serif);
  font-size:13px;
  letter-spacing:.1em;
  color:var(--amber);
}
.flow-step h3{font-size:19px;margin:10px 0 8px}
.flow-step p{font-size:14.5px;line-height:1.8;color:rgba(243,239,230,.72)}

/* ---------- 联系与说明 ---------- */
.contact-section{background:var(--sand)}
.contact-layout{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:48px;
  align-items:center;
}
.contact-layout h2{margin-bottom:14px}
.contact-list{
  margin-top:26px;
  display:grid;
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
}
.contact-row{
  display:grid;
  grid-template-columns:150px minmax(0,1fr);
  gap:16px;
  padding:16px 20px;
  background:#fff;
  font-size:15px;
  line-height:1.8;
}
.contact-row dt{color:var(--muted);font-size:14px}
.contact-row dd{margin:0;color:var(--text)}
.contact-figure{
  border-radius:var(--radius-img);
  border:1px solid var(--line);
  overflow:hidden;
  background:#fff;
  box-shadow:var(--shadow-1);
}
.contact-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.contact-figure figcaption{
  padding:10px 16px;
  font-size:13px;
  color:var(--muted);
  border-top:1px solid var(--line);
}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(180deg,#EAF1EE 0%,#E1EBE7 100%);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-inner{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:36px;
  align-items:center;
}
.cta-inner h2{margin-bottom:12px}
.cta-inner p{font-size:15.5px;line-height:1.85;color:var(--muted);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--charcoal);
  color:rgba(243,239,230,.78);
  padding:66px 0 30px;
  font-size:14.5px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr .9fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(243,239,230,.14);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-serif);
  font-size:18px;
  font-weight:700;
  color:var(--cream);
  margin-bottom:16px;
}
.footer-brand .brand-mark{width:32px;height:32px;font-size:17px}
.site-footer p{line-height:1.85}
.footer-title{
  font-size:14px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--cream);
  margin-bottom:16px;
}
.footer-list{display:flex;flex-direction:column;gap:11px}
.footer-list a{transition:color .18s ease}
.footer-list a:hover{color:var(--amber)}
.footer-info{display:flex;flex-direction:column;gap:12px}
.footer-info strong{color:var(--cream);font-weight:600;margin-right:4px}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  justify-content:space-between;
  align-items:center;
  padding-top:22px;
  font-size:13.5px;
  color:rgba(243,239,230,.6);
}
.footer-legal{display:flex;flex-wrap:wrap;gap:18px}
.footer-legal span{transition:color .18s ease;cursor:default}
.footer-legal span:hover{color:var(--amber)}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .entry-layout{grid-template-columns:224px minmax(0,1fr);gap:36px}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1024px){
  .main-nav{display:none}
  .nav-search{display:none}
  .nav-toggle{display:inline-flex}
  .cat-hero-grid{grid-template-columns:1fr;gap:30px}
  .hero-figure{max-width:520px}
  .contact-layout{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .flow{grid-template-columns:1fr;gap:18px}
}
@media (max-width:820px){
  .section{padding:72px 0}
  .entry-layout{grid-template-columns:1fr;gap:28px}
  .toc{position:static;padding:16px 14px}
  .toc-nav{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px}
  .toc-link{white-space:nowrap;background:var(--sand)}
  .toc-note{display:none}
  .entry-main{gap:44px}
  .entry-item{
    grid-template-columns:44px minmax(0,1fr);
    gap:14px;
    padding:18px 12px;
  }
  .entry-action{
    grid-column:2;
    justify-self:start;
    padding-top:2px;
    text-align:left;
  }
  .cta-inner{grid-template-columns:1fr}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-sm{padding:48px 0}
  body{font-size:16px}
  h3{font-size:20px}
  .cat-hero{padding:28px 0 34px}
  .stat-grid{grid-template-columns:1fr}
  .stat-value{font-size:34px}
  .contact-row{grid-template-columns:1fr;gap:4px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .entry-item{padding:16px 8px}
  .entry-body p{font-size:14.5px}
}