/* roulang page: index */
:root{
  --bg:#161a15;
  --bg-soft:#1d221b;
  --bg-deep:#10130e;
  --card:rgba(240,234,216,0.04);
  --card-hover:rgba(240,234,216,0.07);
  --text:#f0ead8;
  --text-muted:#a9a392;
  --accent:#e8a13a;
  --accent-2:#7bab6a;
  --accent-soft:rgba(232,161,58,0.14);
  --border:rgba(240,234,216,0.13);
  --border-strong:rgba(240,234,216,0.24);
  --border-accent:rgba(232,161,58,0.42);
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 20px 60px rgba(0,0,0,.4);
  --shadow-sm:0 8px 24px rgba(0,0,0,.25);
  --font-body:"Noto Serif SC","Songti SC","SimSun",serif;
  --font-hand:"Ma Shan Zheng","Noto Serif SC",cursive;
  --space:110px;
  --header-h:76px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  background:var(--bg);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  opacity:.5;
  background:
    radial-gradient(ellipse at 18% 20%,rgba(232,161,58,.06),transparent 42%),
    radial-gradient(ellipse at 82% 12%,rgba(123,171,106,.05),transparent 38%),
    radial-gradient(ellipse at 50% 90%,rgba(232,161,58,.04),transparent 46%);
}
a{color:inherit;text-decoration:none;transition:color .25s ease}
img{display:block;max-width:100%}
button,input,select{font:inherit;color:inherit}
.container{width:min(1200px,92%);margin-inline:auto}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  border-radius:var(--radius-sm);
  font-weight:700;
  font-size:15px;
  letter-spacing:.04em;
  padding:14px 32px;
  border:1px solid transparent;
  cursor:pointer;
  transition:all .28s ease;
  position:relative;
  white-space:nowrap;
  background:none;
}
.btn-primary{
  background:var(--accent);
  color:#1b1508;
  border-color:var(--accent);
  box-shadow:0 6px 24px rgba(232,161,58,.22);
}
.btn-primary:hover{
  transform:translateY(-3px) rotate(-.4deg);
  box-shadow:0 12px 34px rgba(232,161,58,.3);
  background:#f0ae4b;
}
.btn-ghost{
  color:var(--text);
  border:1px solid var(--border-strong);
  background:rgba(240,234,216,.03);
}
.btn-ghost:hover{
  border-color:var(--accent);
  color:var(--accent);
  background:var(--accent-soft);
  transform:translateY(-3px);
}
.btn-outline-accent{
  color:var(--accent);
  border:1px solid var(--border-accent);
}
.btn-outline-accent:hover{
  background:var(--accent);
  color:#1b1508;
  transform:translateY(-2px);
}
.btn:focus-visible,button:focus-visible,a:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
}
.section{
  padding:var(--space) 0;
  position:relative;
}
.section-head{
  max-width:720px;
  margin-bottom:52px;
  position:relative;
}
.section-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-hand);
  font-size:19px;
  color:var(--accent);
  letter-spacing:.06em;
  margin-bottom:12px;
  transform:rotate(-1deg);
}
.section-tag::before{
  content:"❖";
  font-size:14px;
}
.section-title{
  font-size:clamp(28px,4vw,42px);
  font-weight:900;
  line-height:1.28;
  letter-spacing:.02em;
  margin-bottom:14px;
}
.section-desc{
  color:var(--text-muted);
  font-size:16px;
  line-height:1.85;
}
.section-divider{
  border:none;
  height:1px;
  background:repeating-linear-gradient(90deg,var(--border-strong) 0 10px,transparent 10px 18px);
  margin:0;
}
.grain-mask{
  position:relative;
  overflow:hidden;
}
.grain-mask::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:.35;
  background:repeating-linear-gradient(0deg,transparent 0 3px,rgba(0,0,0,.1) 3px 4px);
}
/* Header Nav */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  height:var(--header-h);
  transition:background .4s ease,box-shadow .4s ease,border-color .4s ease;
  border-bottom:1px solid transparent;
  backdrop-filter:blur(14px) saturate(150%);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  background:rgba(22,26,21,.5);
}
.site-header.scrolled{
  background:rgba(16,19,14,.86);
  border-color:var(--border);
  box-shadow:0 12px 40px rgba(0,0,0,.3);
}
.nav-inner{
  height:var(--header-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand-mark{
  width:40px;
  height:40px;
  border-radius:10px;
  background:var(--accent);
  color:#1b1508;
  font-family:var(--font-hand);
  font-size:25px;
  font-weight:900;
  display:flex;
  align-items:center;
  justify-content:center;
  transform:rotate(-6deg);
  box-shadow:0 4px 14px rgba(232,161,58,.35);
}
.brand-name{
  font-family:var(--font-hand);
  font-size:24px;
  letter-spacing:.06em;
  color:var(--text);
  line-height:1.1;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  list-style:none;
}
.nav-link{
  padding:9px 18px;
  border-radius:999px;
  font-size:15px;
  font-weight:500;
  color:var(--text-muted);
  position:relative;
  transition:color .25s,background .25s;
}
.nav-link:hover{
  color:var(--text);
  background:rgba(240,234,216,.06);
}
.nav-link.active{
  color:var(--accent);
  background:var(--accent-soft);
  font-weight:700;
}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  width:14px;height:3px;
  border-radius:2px;
  transform:translateX(-50%);
  background:var(--accent);
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.nav-cta .btn{
  padding:9px 22px;
  font-size:14px;
}
.nav-toggle{
  display:none;
  background:none;
  border:1px solid var(--border-strong);
  border-radius:var(--radius-sm);
  width:44px;
  height:44px;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  cursor:pointer;
  transition:border-color .25s;
}
.nav-toggle:hover{
  border-color:var(--accent);
}
.nav-toggle span{
  display:block;
  width:20px;height:2px;
  background:var(--text);
  border-radius:2px;
  transition:transform .3s,opacity .3s;
}
/* Hero */
.hero{
  position:relative;
  min-height:92vh;
  display:flex;
  align-items:center;
  padding:calc(var(--header-h) + 60px) 0 80px;
  background:
    linear-gradient(112deg,rgba(16,19,14,.92) 12%,rgba(16,19,14,.68) 55%,rgba(22,26,21,.88)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid var(--border);
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  top:-120px;right:-80px;
  width:440px;height:440px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(232,161,58,.12),transparent 68%);
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  bottom:-160px;left:-100px;
  width:520px;height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(123,171,106,.1),transparent 64%);
  pointer-events:none;
}
.hero-wrap{
  position:relative;
  z-index:2;
  max-width:760px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 18px;
  border:1px dashed var(--border-accent);
  border-radius:999px;
  font-size:14px;
  color:var(--accent);
  background:var(--accent-soft);
  letter-spacing:.08em;
  margin-bottom:24px;
  transform:rotate(-1deg);
}
.hero-title{
  font-size:clamp(38px,6.4vw,72px);
  font-weight:900;
  line-height:1.18;
  letter-spacing:.02em;
  margin-bottom:22px;
  text-shadow:0 6px 30px rgba(0,0,0,.5);
}
.hero-title em{
  font-style:normal;
  color:var(--accent);
  position:relative;
  white-space:nowrap;
}
.hero-title em::after{
  content:"";
  position:absolute;
  left:0;right:0;
  bottom:4px;
  height:10px;
  background:rgba(232,161,58,.22);
  z-index:-1;
  border-radius:3px;
}
.hero-sub{
  font-family:var(--font-hand);
  font-size:26px;
  color:var(--accent);
  letter-spacing:.06em;
  margin-bottom:18px;
  transform:rotate(-1deg);
}
.hero-text{
  color:var(--text-muted);
  font-size:17px;
  line-height:1.95;
  max-width:600px;
  margin-bottom:38px;
}
.hero-btns{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
}
.hero-note{
  margin-top:34px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  font-size:13px;
  color:var(--text-muted);
}
.hero-note span{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border:1px solid var(--border);
  border-radius:999px;
  background:rgba(240,234,216,.03);
}
/* Feature */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.feature-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:34px 28px;
  position:relative;
  transition:transform .3s,box-shadow .3s,border-color .3s,background .3s;
}
.feature-card::before{
  content:"";
  position:absolute;
  inset:8px;
  border:1px dashed var(--border);
  border-radius:10px;
  pointer-events:none;
  opacity:.35;
  transition:opacity .3s;
}
.feature-card:hover{
  transform:translateY(-6px) rotate(.3deg);
  background:var(--card-hover);
  border-color:var(--border-accent);
  box-shadow:var(--shadow-sm);
}
.feature-card:hover::before{
  opacity:.8;
}
.feature-icon{
  width:52px;
  height:52px;
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:24px;
  background:var(--accent-soft);
  color:var(--accent);
  border:1px solid var(--border-accent);
  margin-bottom:20px;
  transform:rotate(-5deg);
  transition:transform .3s;
}
.feature-card:nth-child(2) .feature-icon{
  transform:rotate(3deg);
  color:var(--accent-2);
  border-color:rgba(123,171,106,.4);
  background:rgba(123,171,106,.12);
}
.feature-card:nth-child(3) .feature-icon{
  transform:rotate(-2deg);
}
.feature-card:nth-child(4) .feature-icon{
  transform:rotate(4deg);
  color:var(--accent-2);
  border-color:rgba(123,171,106,.4);
  background:rgba(123,171,106,.12);
}
.feature-card h3{
  font-size:19px;
  font-weight:700;
  margin-bottom:10px;
  letter-spacing:.03em;
}
.feature-card p{
  color:var(--text-muted);
  font-size:14px;
  line-height:1.8;
}
/* Category */
.category-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:26px;
}
.category-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  position:relative;
  transition:transform .35s,box-shadow .35s,border-color .35s;
}
.category-card:hover{
  transform:translateY(-8px);
  border-color:var(--border-accent);
  box-shadow:var(--shadow);
}
.category-cover{
  position:relative;
  height:210px;
  overflow:hidden;
}
.category-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .7s ease;
}
.category-card:hover .category-cover img{
  transform:scale(1.08) rotate(1deg);
}
.category-cover::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(to bottom,transparent 38%,rgba(16,19,14,.82));
}
.category-tag{
  position:absolute;
  top:16px;left:16px;
  z-index:2;
  font-size:13px;
  font-weight:700;
  color:var(--accent);
  background:rgba(16,19,14,.82);
  border:1px solid var(--border-accent);
  padding:5px 14px;
  border-radius:999px;
  backdrop-filter:blur(6px);
  letter-spacing:.06em;
}
.category-info{
  padding:26px 26px 30px;
  position:relative;
}
.category-info h3{
  font-size:22px;
  font-weight:900;
  margin-bottom:10px;
  letter-spacing:.02em;
}
.category-info p{
  color:var(--text-muted);
  font-size:14px;
  line-height:1.85;
  margin-bottom:20px;
}
.category-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:700;
  color:var(--accent);
  transition:gap .3s;
}
.category-arrow::before{
  content:"";
  width:22px;height:1px;
  background:var(--accent);
  display:inline-block;
  transition:width .3s;
}
.category-card:hover .category-arrow{
  gap:14px;
}
/* Steps */
.steps-wrap{
  background:var(--bg-soft);
  border:1px solid var(--border);
  border-radius:calc(var(--radius) + 6px);
  padding:56px 40px;
  position:relative;
}
.steps-wrap::before{
  content:"✦ 简易四步，快速进入服务";
  position:absolute;
  top:-15px;
  left:36px;
  background:var(--bg);
  color:var(--accent);
  font-family:var(--font-hand);
  font-size:18px;
  padding:2px 16px;
  border:1px solid var(--border-accent);
  border-radius:6px;
  transform:rotate(-1deg);
}
.steps-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
  margin-top:10px;
}
.step{
  position:relative;
  padding:26px 18px;
  text-align:center;
  border:1px dashed var(--border);
  border-radius:var(--radius);
  background:rgba(240,234,216,.02);
  transition:transform .3s,border-color .3s;
}
.step:hover{
  transform:translateY(-5px);
  border-color:var(--border-accent);
}
.step-num{
  font-family:var(--font-hand);
  font-size:40px;
  color:var(--accent);
  line-height:1;
  margin-bottom:12px;
  display:block;
  transform:rotate(-4deg);
}
.step-title{
  font-size:17px;
  font-weight:700;
  margin-bottom:8px;
}
.step-desc{
  color:var(--text-muted);
  font-size:13px;
  line-height:1.75;
}
.step-arrow{
  position:absolute;
  top:50%;
  right:-18px;
  transform:translateY(-50%);
  color:var(--accent);
  font-size:13px;
  z-index:2;
}
/* Stats */
.stats-wrap{
  background:
    linear-gradient(120deg,rgba(16,19,14,.9),rgba(22,26,21,.88)),
    url('/assets/images/backpic/back-2.png') center/cover;
  border-radius:calc(var(--radius) + 6px);
  border:1px solid var(--border);
  padding:60px 40px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  position:relative;
  overflow:hidden;
}
.stats-wrap::before{
  content:"";
  position:absolute;
  inset:10px;
  border:1px dashed var(--border-accent);
  border-radius:calc(var(--radius));
  pointer-events:none;
  opacity:.3;
}
.stat{
  text-align:center;
  position:relative;
}
.stat-num{
  font-family:var(--font-hand);
  font-size:clamp(34px,4.5vw,58px);
  color:var(--accent);
  line-height:1.1;
  display:block;
  margin-bottom:6px;
  text-shadow:0 4px 16px rgba(232,161,58,.2);
}
.stat-label{
  font-size:14px;
  color:var(--text-muted);
  letter-spacing:.06em;
}
/* News */
.news-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.news-card{
  display:block;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:28px 30px;
  position:relative;
  transition:transform .3s,box-shadow .3s,border-color .3s,background .3s;
}
.news-card::before{
  content:"";
  position:absolute;
  top:0;bottom:0;left:0;
  width:4px;
  background:linear-gradient(to bottom,var(--accent),transparent);
  border-radius:0 4px 4px 0;
  opacity:0;
  transition:opacity .3s;
}
.news-card:hover{
  transform:translateY(-5px) rotate(.2deg);
  background:var(--card-hover);
  border-color:var(--border-accent);
  box-shadow:var(--shadow-sm);
}
.news-card:hover::before{
  opacity:1;
}
.news-meta{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:12px;
}
.news-tag{
  padding:4px 12px;
  font-size:12px;
  font-weight:700;
  color:var(--accent);
  background:var(--accent-soft);
  border:1px solid var(--border-accent);
  border-radius:999px;
  letter-spacing:.08em;
}
.news-time{
  font-size:13px;
  color:var(--text-muted);
}
.news-title{
  font-size:19px;
  font-weight:700;
  line-height:1.55;
  margin-bottom:10px;
  color:var(--text);
}
.news-desc{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.8;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.empty-tip{
  grid-column:1/-1;
  text-align:center;
  padding:60px 20px;
  color:var(--text-muted);
  border:1px dashed var(--border-strong);
  border-radius:var(--radius);
  font-size:15px;
}
/* Feature Side */
.feature-side{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
  align-items:center;
}
.feature-img-wrap{
  position:relative;
}
.feature-img-wrap::before{
  content:"";
  position:absolute;
  inset:16px;
  border:1px dashed var(--border-accent);
  border-radius:var(--radius);
  pointer-events:none;
  transform:rotate(2deg);
  transition:transform .5s;
}
.feature-img-wrap:hover::before{
  transform:rotate(0deg);
}
.feature-img-wrap img{
  border-radius:var(--radius);
  border:1px solid var(--border);
  box-shadow:var(--shadow);
}
.feature-body .section-tag{
  margin-bottom:8px;
}
.feature-body h2{
  font-size:clamp(26px,3.4vw,38px);
  font-weight:900;
  line-height:1.35;
  margin-bottom:18px;
}
.feature-body > p{
  color:var(--text-muted);
  margin-bottom:28px;
  line-height:1.9;
}
.feature-list{
  list-style:none;
  display:grid;
  gap:16px;
  margin-bottom:32px;
}
.feature-item{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:14px 18px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  font-size:15px;
  transition:border-color .3s,background .3s;
}
.feature-item:hover{
  border-color:var(--border-accent);
  background:var(--card-hover);
}
.feature-item b{
  color:var(--text);
  font-weight:700;
}
.feature-item span{
  color:var(--accent);
  font-size:13px;
  letter-spacing:.04em;
}
/* FAQ */
.faq-list{
  max-width:860px;
  margin:0 auto;
  display:grid;
  gap:16px;
}
.faq-item{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  overflow:hidden;
  transition:border-color .3s,box-shadow .3s;
}
.faq-item:hover{
  border-color:var(--border-accent);
}
.faq-item.open{
  border-color:var(--border-accent);
  box-shadow:var(--shadow-sm);
}
.faq-question{
  width:100%;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  background:none;
  border:none;
  padding:22px 26px;
  font-size:16px;
  font-weight:700;
  color:var(--text);
  cursor:pointer;
  text-align:left;
  transition:background .3s;
}
.faq-question:hover{
  background:rgba(240,234,216,.03);
}
.faq-question .faq-icon{
  width:28px;
  height:28px;
  flex-shrink:0;
  border:1px solid var(--border-strong);
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  color:var(--accent);
  transition:transform .4s,background .3s,color .3s;
}
.faq-item.open .faq-icon{
  transform:rotate(45deg);
  background:var(--accent);
  color:#1b1508;
  border-color:var(--accent);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s ease;
}
.faq-answer-inner{
  padding:0 26px 24px;
  color:var(--text-muted);
  font-size:15px;
  line-height:1.9;
  border-top:1px dashed var(--border);
  margin:0 26px;
  padding-top:18px;
}
/* CTA */
.cta-box{
  background:
    linear-gradient(115deg,rgba(22,26,21,.88),rgba(29,34,27,.86)),
    url('/assets/images/backpic/back-3.png') center/cover;
  border:1px solid var(--border-accent);
  border-radius:calc(var(--radius) + 8px);
  padding:70px 50px;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-box::before{
  content:"✦ ✦ ✦";
  position:absolute;
  top:20px;left:50%;
  transform:translateX(-50%);
  letter-spacing:14px;
  color:var(--accent);
  font-size:14px;
  opacity:.5;
}
.cta-box::after{
  content:"";
  position:absolute;
  inset:14px;
  border:1px dashed var(--border-accent);
  border-radius:calc(var(--radius));
  pointer-events:none;
  opacity:.25;
}
.cta-title{
  font-size:clamp(28px,4vw,44px);
  font-weight:900;
  margin-bottom:16px;
  line-height:1.3;
}
.cta-text{
  color:var(--text-muted);
  max-width:560px;
  margin:0 auto 34px;
  font-size:16px;
  line-height:1.9;
}
.cta-actions{
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:18px;
}
.cta-hint{
  margin-top:22px;
  font-size:13px;
  color:var(--text-muted);
  letter-spacing:.06em;
}
/* Footer */
.site-footer{
  border-top:1px solid var(--border);
  background:var(--bg-deep);
  margin-top:30px;
  padding:70px 0 36px;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1.2fr 1.2fr;
  gap:48px;
  margin-bottom:44px;
}
.footer-brand .brand-name{
  font-size:26px;
}
.footer-desc{
  font-size:14px;
  color:var(--text-muted);
  margin-top:16px;
  line-height:1.85;
  max-width:340px;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  letter-spacing:.06em;
  margin-bottom:18px;
  padding-bottom:10px;
  border-bottom:1px dashed var(--border);
  display:inline-block;
}
.footer-col a{
  display:block;
  font-size:14px;
  color:var(--text-muted);
  padding:6px 0;
}
.footer-col a:hover{
  color:var(--accent);
  padding-left:6px;
}
.footer-line{
  border:none;
  height:1px;
  background:repeating-linear-gradient(90deg,var(--border) 0 8px,transparent 8px 14px);
}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:14px;
  padding-top:26px;
  font-size:13px;
  color:var(--text-muted);
}
.footer-bottom a{
  color:var(--text-muted);
}
.footer-bottom a:hover{
  color:var(--accent);
}
/* Responsive */
@media (max-width:1024px){
  :root{--space:88px}
  .feature-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .steps-grid{
    grid-template-columns:repeat(2,1fr);
    gap:24px;
  }
  .step-arrow{
    display:none;
  }
  .stats-wrap{
    grid-template-columns:repeat(2,1fr);
  }
  .feature-side{
    grid-template-columns:1fr;
    gap:44px;
  }
  .nav-links{
    position:fixed;
    top:0;right:0;
    width:min(360px,86vw);
    height:100vh;
    background:rgba(16,19,14,.97);
    backdrop-filter:blur(16px);
    flex-direction:column;
    align-items:flex-start;
    justify-content:flex-start;
    gap:6px;
    padding:110px 34px 40px;
    border-left:1px solid var(--border);
    box-shadow:var(--shadow);
    transform:translateX(100%);
    transition:transform .4s cubic-bezier(.22,1,.36,1);
    z-index:99;
  }
  .nav-links.open{
    transform:translateX(0);
  }
  .nav-links .nav-link{
    font-size:19px;
    padding:12px 6px;
    border-radius:6px;
    width:100%;
  }
  .nav-links .nav-link.active::after{
    left:12px;
    transform:none;
  }
  .nav-cta{
    margin-top:24px;
    width:100%;
  }
  .nav-cta .btn{
    width:100%;
  }
  .nav-toggle{
    display:flex;
    position:relative;
    z-index:101;
  }
  .nav-toggle.open span:nth-child(1){
    transform:translateY(7px) rotate(45deg);
  }
  .nav-toggle.open span:nth-child(2){
    opacity:0;
  }
  .nav-toggle.open span:nth-child(3){
    transform:translateY(-7px) rotate(-45deg);
  }
}
@media (max-width:768px){
  :root{--space:72px}
  .category-grid{
    grid-template-columns:1fr;
  }
  .news-grid{
    grid-template-columns:1fr;
  }
  .hero{
    min-height:auto;
    padding-top:130px;
    padding-bottom:64px;
  }
  .hero-title{
    font-size:clamp(32px,9vw,46px);
  }
  .hero-text{
    font-size:15px;
  }
  .steps-wrap{
    padding:48px 20px 28px;
  }
  .stats-wrap{
    padding:48px 20px;
    gap:24px;
  }
  .cta-box{
    padding:50px 24px;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:36px;
  }
}
@media (max-width:520px){
  :root{--space:60px;--header-h:68px}
  .brand-name{
    font-size:20px;
  }
  .brand-mark{
    width:34px;height:34px;
    font-size:20px;
  }
  .feature-grid{
    grid-template-columns:1fr;
  }
  .steps-grid{
    grid-template-columns:1fr;
  }
  .stats-wrap{
    grid-template-columns:1fr 1fr;
    padding:40px 16px;
    gap:22px 12px;
  }
  .stats-wrap::before{
    display:none;
  }
  .feature-card{
    padding:28px 20px;
  }
  .news-card{
    padding:22px 20px;
  }
  .section-title{
    font-size:26px;
  }
  .cta-actions{
    flex-direction:column;
  }
  .cta-actions .btn{
    width:100%;
  }
  .footer-bottom{
    flex-direction:column;
    text-align:center;
  }
}

/* roulang page: category1 */
:root {
  --color-primary: #9c5a2d;
  --color-primary-dark: #6f3d1d;
  --color-primary-soft: #e7d5c3;
  --color-accent: #34675f;
  --color-accent-soft: #d9e5e1;
  --color-bg: #f5efe3;
  --color-surface: #fffaf1;
  --color-surface-2: #efe6d7;
  --color-text: #2b2620;
  --color-text-light: #5f574e;
  --color-muted: #8a7f72;
  --color-border: #d5c8b4;
  --color-dark: #292420;
  --color-dark-soft: #383028;
  --color-highlight: #d9a441;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(60, 45, 30, 0.07);
  --shadow-md: 0 8px 28px rgba(60, 45, 30, 0.10);
  --shadow-lg: 0 18px 50px rgba(60, 45, 30, 0.14);
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --font-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "STZhongsong", serif;
  --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(41, 36, 32, 0.55);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 250, 241, 0.14);
  transition: var(--transition);
}

.site-header.scrolled {
  background: rgba(41, 36, 32, 0.92);
  box-shadow: 0 6px 24px rgba(20, 15, 10, 0.25);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-highlight);
  color: var(--color-dark);
  font-weight: 800;
  font-size: 20px;
  border-radius: 10px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  box-shadow: 0 3px 0 rgba(0,0,0,0.2);
  font-family: var(--font-display);
}

.brand-name {
  color: #fff8ec;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.5px;
  font-family: var(--font-display);
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-link {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 8px;
  color: rgba(255, 248, 236, 0.82);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  border: 1px solid transparent;
}

.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.12);
}

.nav-link.active {
  color: #fff;
  background: rgba(217, 164, 65, 0.22);
  border-color: rgba(217, 164, 65, 0.45);
}

.nav-cta {
  margin-left: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  border-radius: 10px;
  transition: var(--transition);
  border: 2px solid transparent;
  text-align: center;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
}

.btn-md {
  padding: 14px 30px;
  font-size: 15px;
}

.btn-lg {
  padding: 16px 38px;
  font-size: 16px;
  border-radius: 14px;
}

.btn-primary {
  background: var(--color-highlight);
  color: var(--color-dark);
  border-color: #b98322;
  box-shadow: 0 4px 0 #8f6619, 0 6px 14px rgba(20, 15, 10, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 0 #8f6619, 0 10px 22px rgba(20, 15, 10, 0.25);
  background: #e3b252;
}

.btn-primary:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 #8f6619, 0 3px 8px rgba(20, 15, 10, 0.15);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary-soft);
  border-color: var(--color-primary-dark);
}

.btn-outline-light {
  background: transparent;
  color: #fff8ec;
  border-color: rgba(255, 248, 236, 0.5);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 248, 236, 0.8);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 10px;
  border-radius: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: #fff8ec;
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== 页面 Hero ===== */
.page-hero {
  position: relative;
  padding: 180px 0 110px;
  background-color: var(--color-dark-soft);
  background-image: linear-gradient(135deg, rgba(31, 27, 22, 0.86), rgba(70, 52, 34, 0.72)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  color: #fff8ec;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.page-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 120px;
  background: linear-gradient(to top, var(--color-bg), transparent);
  pointer-events: none;
}

.hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 248, 236, 0.65);
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}

.hero-breadcrumb a {
  color: rgba(255, 248, 236, 0.75);
  transition: var(--transition);
}

.hero-breadcrumb a:hover {
  color: var(--color-highlight);
}

.hero-breadcrumb i {
  font-size: 11px;
  opacity: 0.7;
}

.hero-breadcrumb .current {
  color: var(--color-highlight);
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 1px;
  margin-bottom: 20px;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}

.page-hero h1 .highlight {
  color: var(--color-highlight);
}

.hero-lead {
  max-width: 640px;
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 248, 236, 0.82);
  margin-bottom: 34px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}

.hero-meta {
  display: flex;
  gap: 28px;
  margin-top: 54px;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-md);
  padding: 12px 20px;
}

.hero-meta-item i {
  color: var(--color-highlight);
  font-size: 20px;
}

.hero-meta-item span {
  font-size: 14px;
  color: rgba(255, 248, 236, 0.85);
}

/* ===== 通用板块 ===== */
.section {
  padding: 90px 0;
}

.section-alt {
  background: var(--color-surface-2);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 16px;
  border: 1px solid rgba(52, 103, 95, 0.2);
}

.section-title {
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 16px;
  color: var(--color-text);
  letter-spacing: 0.5px;
}

.section-subtitle {
  color: var(--color-text-light);
  font-size: 16px;
  line-height: 1.8;
}

/* ===== 登录方式卡片 ===== */
.login-methods {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.method-card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  position: relative;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.method-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-highlight);
  opacity: 0;
  transition: var(--transition);
}

.method-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.method-card:hover::before {
  opacity: 1;
}

.method-icon {
  width: 68px;
  height: 68px;
  border-radius: 16px;
  background: var(--color-accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--color-accent);
  font-size: 28px;
  border: 2px solid rgba(52, 103, 95, 0.15);
}

.method-icon.highlight {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.method-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  font-family: var(--font-display);
}

.method-card p {
  color: var(--color-text-light);
  font-size: 14px;
  line-height: 1.75;
  margin-bottom: 20px;
}

.method-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.method-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-surface-2);
  border-radius: 100px;
  padding: 4px 12px;
  font-size: 12px;
  color: var(--color-text-light);
  border: 1px solid transparent;
}

/* ===== 详细步骤 ===== */
.steps-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.steps-visual {
  position: relative;
}

.steps-visual .visual-card {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 6px solid var(--color-surface);
  box-shadow: var(--shadow-lg);
  position: relative;
}

.steps-visual .visual-card img {
  width: 100%;
  height: 460px;
  object-fit: cover;
}

.visual-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: rgba(41, 36, 32, 0.85);
  backdrop-filter: blur(10px);
  color: #fff8ec;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.visual-badge i {
  color: var(--color-highlight);
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step-item {
  display: flex;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 2px dashed var(--color-border);
  position: relative;
}

.step-item:last-child {
  border-bottom: none;
}

.step-num {
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  box-shadow: 0 4px 0 var(--color-primary-dark), 0 6px 14px rgba(156, 90, 45, 0.25);
  font-family: var(--font-display);
}

.step-content h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
  font-family: var(--font-display);
}

.step-content p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.75;
}

.step-content p + p {
  margin-top: 8px;
}

.step-content .step-tip {
  display: inline-block;
  background: var(--color-accent-soft);
  border-radius: 6px;
  padding: 3px 10px;
  font-size: 12px;
  color: var(--color-accent);
  margin-top: 8px;
}

/* ===== 分类区块 ===== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.category-card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 0;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.category-card-image {
  height: 170px;
  overflow: hidden;
  position: relative;
}

.category-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.category-card:hover .category-card-image img {
  transform: scale(1.05);
}

.category-card-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(41, 36, 32, 0.4), transparent 60%);
}

.category-card-content {
  padding: 24px;
}

.category-card-content h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  font-family: var(--font-display);
}

.category-card-content p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}

.category-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--color-surface-2);
}

.category-card-footer .more-link {
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
}

.category-card-footer .more-link:hover {
  color: var(--color-primary-dark);
  gap: 6px;
}

.category-card-footer .more-link i {
  font-size: 12px;
  transition: var(--transition);
}

.category-card-footer .more-link:hover i {
  transform: translateX(4px);
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--color-primary);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 28px;
  background: none;
  border: none;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
}

.faq-question i {
  color: var(--color-primary);
  flex-shrink: 0;
  transition: var(--transition);
}

.faq-item.open .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-answer-inner {
  padding: 0 28px 24px;
  color: var(--color-text-light);
  font-size: 14px;
  line-height: 1.85;
  border-top: 1px dashed var(--color-border);
  padding-top: 18px;
}

/* ===== 注意事项 ===== */
.notice-wrap {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.notice-box {
  background: var(--color-dark);
  border-radius: var(--radius-lg);
  padding: 36px;
  color: rgba(255, 248, 236, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  overflow: hidden;
}

.notice-box::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(217, 164, 65, 0.1);
}

.notice-box::after {
  content: "";
  position: absolute;
  top: -10px;
  right: 20px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(217, 164, 65, 0.15);
}

.notice-box-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
  font-family: var(--font-display);
  color: var(--color-highlight);
}

.notice-box-title i {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(217, 164, 65, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.notice-box ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.notice-box ul li {
  padding-left: 24px;
  position: relative;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 248, 236, 0.78);
}

.notice-box ul li::before {
  content: "\f00c";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 0;
  top: 2px;
  color: var(--color-highlight);
  font-size: 12px;
}

.notice-box.blocked ul li::before {
  content: "\f00d";
  color: #e08b8b;
}

/* ===== CTA ===== */
.cta-section {
  background: var(--color-dark);
  background-image: radial-gradient(ellipse at 30% 40%, rgba(217, 164, 65, 0.16), transparent 60%), radial-gradient(ellipse at 70% 80%, rgba(52, 103, 95, 0.24), transparent 55%);
}

.cta-box {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.cta-box h2 {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 900;
  color: #fff8ec;
  margin-bottom: 16px;
  line-height: 1.3;
}

.cta-box p {
  color: rgba(255, 248, 236, 0.72);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 36px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-dark);
  color: rgba(255, 248, 236, 0.7);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 56px;
}

.footer-brand .brand-name {
  font-size: 22px;
}

.footer-desc {
  margin-top: 20px;
  max-width: 380px;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(255, 248, 236, 0.6);
}

.footer-col h4 {
  color: #fff8ec;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 24px;
  font-family: var(--font-display);
  letter-spacing: 0.5px;
}

.footer-col a {
  display: block;
  color: rgba(255, 248, 236, 0.6);
  font-size: 14px;
  padding: 6px 0;
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--color-highlight);
  transform: translateX(6px);
}

.footer-line {
  border: none;
  border-top: 1px solid rgba(255, 248, 236, 0.12);
  margin: 0;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 28px 0;
  font-size: 13px;
  color: rgba(255, 248, 236, 0.45);
  flex-wrap: wrap;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .login-methods {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .steps-wrap {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .steps-visual .visual-card img {
    height: 380px;
  }

  .category-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .footer-grid {
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }

  .page-hero {
    padding: 150px 0 80px;
  }

  .page-hero h1 {
    font-size: 34px;
  }

  .login-methods {
    grid-template-columns: 1fr;
  }

  .category-grid {
    grid-template-columns: 1fr 1fr;
  }

  .notice-wrap {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  /* 导航响应式 */
  .nav-toggle {
    display: flex;
    z-index: 101;
  }

  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(41, 36, 32, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 20px 24px 28px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    transform: translateY(-16px);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    max-height: 0;
    overflow: hidden;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
    max-height: 500px;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-link {
    display: block;
    padding: 12px 16px;
    border-radius: 10px;
  }

  .nav-cta {
    margin-left: 0;
    margin-top: 12px;
  }

  .nav-cta .btn {
    width: 100%;
  }

  .brand-name {
    font-size: 17px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }

  .section-title {
    font-size: 26px;
  }

  .page-hero h1 {
    font-size: 28px;
  }

  .hero-lead {
    font-size: 15px;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-meta {
    flex-direction: column;
    gap: 12px;
  }

  .category-grid {
    grid-template-columns: 1fr;
  }

  .step-item {
    gap: 14px;
  }

  .step-num {
    width: 38px;
    height: 38px;
    font-size: 15px;
    border-radius: 10px;
  }

  .faq-question {
    font-size: 15px;
    padding: 18px 18px;
  }

  .faq-answer-inner {
    padding: 0 18px 18px;
  }

  .cta-box h2 {
    font-size: 26px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* roulang page: article */
:root{
  --color-primary:#b8862d;
  --color-primary-dark:#8a6420;
  --color-primary-light:#d4a94d;
  --color-secondary:#c05c3b;
  --color-secondary-light:#d9825e;
  --color-bg-dark:#1f1a14;
  --color-bg:#f5f0e6;
  --color-bg-light:#faf7f0;
  --color-surface:#fffdf8;
  --color-text:#2b261e;
  --color-text-light:#6b6255;
  --color-border:#e0d4bd;
  --color-border-dark:#c9b89a;
  --radius-sm:4px;
  --radius-md:10px;
  --radius-lg:18px;
  --shadow-sm:0 2px 8px rgba(0,0,0,0.06);
  --shadow-md:0 6px 20px rgba(0,0,0,0.09);
  --shadow-lg:0 16px 40px rgba(0,0,0,0.12);
  --font-serif:Georgia,'Songti SC','STSong','SimSun',serif;
  --font-sans:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
  --space-xs:8px;
  --space-sm:16px;
  --space-md:32px;
  --space-lg:64px;
  --space-xl:96px;
  --header-h:72px;
  --max-w:1200px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);line-height:1.75;font-size:15px;-webkit-font-smoothing:antialiased}
a{color:var(--color-primary);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--color-primary-dark)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit}
.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:var(--radius-md);font-weight:600;font-size:15px;line-height:1.4;border:2px solid transparent;cursor:pointer;transition:all .28s ease;letter-spacing:.02em}
.btn-primary{background:var(--color-primary);border-color:var(--color-primary);color:#fff}
.btn-primary:hover{background:var(--color-primary-dark);border-color:var(--color-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px rgba(184,134,45,.28)}
.btn-outline{background:transparent;border-color:var(--color-primary);color:var(--color-primary)}
.btn-outline:hover{background:var(--color-primary);color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px rgba(184,134,45,.22)}
.btn-light{background:#fff;color:var(--color-text);border-color:#fff}
.btn-light:hover{background:var(--color-bg-light);color:var(--color-primary);transform:translateY(-2px)}
.btn-sm{padding:8px 18px;font-size:13px;border-radius:var(--radius-sm)}
.btn-lg{padding:14px 36px;font-size:16px}
.badge{display:inline-flex;align-items:center;gap:4px;padding:4px 14px;border-radius:50px;font-size:12px;font-weight:600;line-height:1.5;background:rgba(184,134,45,.12);color:var(--color-primary);border:1px solid rgba(184,134,45,.25)}
.badge-primary{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}
.badge-secondary{background:rgba(192,92,59,.1);color:var(--color-secondary);border-color:rgba(192,92,59,.25)}
.section{padding:var(--space-lg) 0}
.section-sm{padding:var(--space-md) 0}
.section-title{font-family:var(--font-serif);font-size:36px;font-weight:700;color:var(--color-text);line-height:1.3;margin-bottom:8px;letter-spacing:.02em}
.section-subtitle{color:var(--color-text-light);font-size:16px;margin-bottom:32px;max-width:640px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;gap:16px;margin-bottom:40px}
.section-head .section-title{margin-bottom:0}
.text-center{text-align:center}
.mt-sm{margin-top:var(--space-sm)}
.mt-md{margin-top:var(--space-md)}
.mt-lg{margin-top:var(--space-lg)}
.mb-sm{margin-bottom:var(--space-sm)}
.mb-md{margin-bottom:var(--space-md)}
.mb-lg{margin-bottom:var(--space-lg)}

.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(31,26,20,.5);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.12);
  transition:background .35s ease,box-shadow .35s ease;
}
.site-header.scrolled{
  background:rgba(250,247,240,.92);
  box-shadow:var(--shadow-md);
  border-bottom-color:rgba(184,134,45,.15);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;color:#fff;transition:color .3s}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  background:linear-gradient(135deg,var(--color-primary-light),var(--color-primary-dark));
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-weight:700;font-size:20px;color:#fff;
  box-shadow:0 4px 12px rgba(184,134,45,.35);border:2px solid rgba(255,255,255,.3);
}
.brand-name{font-size:19px;font-weight:700;font-family:var(--font-serif);letter-spacing:.03em}
.site-header.scrolled .brand-name{color:var(--color-text)}
.site-header.scrolled .brand-mark{box-shadow:0 3px 8px rgba(0,0,0,.15)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links>li{position:relative}
.nav-link{
  display:inline-block;padding:9px 16px;font-size:14px;font-weight:500;color:rgba(255,255,255,.9);
  border-radius:8px;transition:color .25s,background .25s;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.12)}
.nav-link.active{color:var(--color-primary-light);font-weight:600;background:rgba(184,134,45,.15)}
.site-header.scrolled .nav-link{color:var(--color-text)}
.site-header.scrolled .nav-link:hover{color:var(--color-primary);background:rgba(184,134,45,.08)}
.site-header.scrolled .nav-link.active{color:var(--color-primary);background:rgba(184,134,45,.12)}
.nav-cta a{margin-left:10px}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;background:transparent;border:1px solid rgba(255,255,255,.25);
  border-radius:10px;cursor:pointer;padding:10px;transition:all .3s;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:currentColor;transition:all .3s}
.nav-toggle{color:#fff}
.site-header.scrolled .nav-toggle{border-color:var(--color-border-dark);color:var(--color-text)}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.article-banner{
  min-height:420px;display:flex;align-items:flex-end;position:relative;
  padding:140px 0 64px;
  background:linear-gradient(180deg,rgba(31,26,20,.72) 0%,rgba(31,26,20,.55) 60%,rgba(245,240,230,1) 100%),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff;
}
.article-banner .breadcrumb{
  display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.75);margin-bottom:18px;flex-wrap:wrap;
}
.article-banner .breadcrumb a{color:rgba(255,255,255,.85)}
.article-banner .breadcrumb a:hover{color:var(--color-primary-light)}
.article-banner .breadcrumb .sep{color:rgba(255,255,255,.4)}
.article-header-title{
  font-family:var(--font-serif);font-size:38px;font-weight:700;line-height:1.3;
  margin-bottom:16px;max-width:860px;letter-spacing:.01em;
}
.article-meta{display:flex;align-items:center;gap:18px;flex-wrap:wrap;font-size:14px;color:rgba(255,255,255,.8)}
.article-meta .meta-item{display:flex;align-items:center;gap:6px}
.article-meta i{color:var(--color-primary-light)}

.article-wrap{padding:48px 0 72px;background:var(--color-bg)}
.article-layout{display:grid;grid-template-columns:1fr 320px;gap:48px;align-items:start}
.article-main{
  background:var(--color-surface);border:1px solid var(--color-border);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-md);
  padding:48px 44px;position:relative;
}
.article-main::before{
  content:'';position:absolute;top:0;left:24px;right:24px;height:4px;
  background:linear-gradient(90deg,var(--color-primary),var(--color-primary-light),transparent);
  border-radius:0 0 8px 8px;
}
.article-body{font-size:15.5px;line-height:1.95;color:#3a342b}
.article-body p{margin-bottom:20px}
.article-body h2,.article-body h3{font-family:var(--font-serif);margin:32px 0 14px;color:var(--color-text)}
.article-body h2{font-size:24px}
.article-body h3{font-size:20px}
.article-body ul{margin-bottom:20px;padding-left:0}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:8px}
.article-body ul li::before{content:'';position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--color-primary);transform:rotate(45deg)}
.article-body img{border-radius:var(--radius-md);margin:20px 0;box-shadow:var(--shadow-md)}
.article-body blockquote{
  margin:24px 0;padding:16px 24px;border-left:4px solid var(--color-primary-light);
  background:var(--color-bg-light);border-radius:0 var(--radius-md) var(--radius-md) 0;
  color:var(--color-text-light);font-style:italic;
}
.article-tags{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:36px;padding-top:24px;border-top:1px dashed var(--color-border)}
.article-tags .tags-label{font-size:14px;font-weight:600;color:var(--color-text-light)}
.article-tags .tag-link{
  display:inline-block;padding:5px 14px;font-size:12.5px;border:1px solid var(--color-border);
  border-radius:50px;background:var(--color-bg-light);color:var(--color-text-light);transition:all .25s;
}
.article-tags .tag-link:hover{border-color:var(--color-primary);color:var(--color-primary);background:rgba(184,134,45,.06)}
.article-nav{display:flex;justify-content:space-between;gap:12px;margin-top:28px;padding-top:20px;border-top:1px solid var(--color-border)}
.article-nav a{font-size:13px;color:var(--color-text-light)}
.article-nav a:hover{color:var(--color-primary)}

.article-sidebar{display:flex;flex-direction:column;gap:28px;position:sticky;top:calc(var(--header-h) + 24px)}
.sidebar-card{
  background:var(--color-surface);border:1px solid var(--color-border);
  border-radius:var(--radius-lg);padding:26px 24px;box-shadow:var(--shadow-sm);
}
.sidebar-card h3{font-size:17px;font-family:var(--font-serif);margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--color-bg);position:relative}
.sidebar-card h3::after{content:'';position:absolute;left:0;bottom:-2px;width:40px;height:2px;background:var(--color-primary)}
.sidebar-about{text-align:center}
.sidebar-about .about-logo{width:72px;height:72px;margin:0 auto 14px;border-radius:20px;background:linear-gradient(135deg,var(--color-primary-light),var(--color-primary-dark));display:flex;align-items:center;justify-content:center;font-size:34px;color:#fff;box-shadow:var(--shadow-md)}
.sidebar-about p{font-size:13px;color:var(--color-text-light);line-height:1.7}
.sidebar-cats li{margin-bottom:6px}
.sidebar-cats a{
  display:flex;align-items:center;justify-content:space-between;
  padding:11px 14px;border-radius:var(--radius-md);font-size:14px;color:var(--color-text);
  background:var(--color-bg-light);border:1px solid transparent;transition:all .25s;
}
.sidebar-cats a:hover{background:rgba(184,134,45,.08);border-color:rgba(184,134,45,.2);color:var(--color-primary)}
.sidebar-cats a span{color:var(--color-text-light);font-size:12px}
.sidebar-news li{padding:12px 0;border-bottom:1px dashed var(--color-border)}
.sidebar-news li:last-child{border-bottom:none;padding-bottom:0}
.sidebar-news a{font-size:14px;color:var(--color-text);line-height:1.5;display:block}
.sidebar-news a:hover{color:var(--color-primary)}
.sidebar-news .news-date{font-size:12px;color:var(--color-text-light);margin-top:4px;display:block}

.related-section{padding:64px 0;background:var(--color-bg-light);border-top:1px solid var(--color-border)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.related-card{
  background:var(--color-surface);border:1px solid var(--color-border);
  border-radius:var(--radius-lg);overflow:hidden;transition:all .3s ease;
}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--color-border-dark)}
.related-card .related-img{position:relative;height:180px;overflow:hidden}
.related-card .related-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.related-card:hover .related-img img{transform:scale(1.06)}
.related-card .related-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(31,26,20,.35))}
.related-card .related-img .cat-badge{
  position:absolute;top:14px;left:14px;z-index:2;background:rgba(31,26,20,.7);color:#fff;
  padding:4px 12px;border-radius:50px;font-size:12px;border:1px solid rgba(255,255,255,.25);
}
.related-card .related-body{padding:20px 22px 24px}
.related-card h3{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:8px;color:var(--color-text)}
.related-card h3 a{color:inherit}
.related-card h3 a:hover{color:var(--color-primary)}
.related-card .related-meta{font-size:13px;color:var(--color-text-light)}

.tips-section{padding:64px 0;position:relative;background:var(--color-bg-dark);color:#f0e9db;overflow:hidden}
.tips-section::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;opacity:.28}
.tips-section .container{position:relative;z-index:2}
.tips-section .section-title{color:#f0e9db}
.tips-section .section-subtitle{color:rgba(240,233,219,.72)}
.tips-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:32px}
.tips-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-lg);padding:28px 24px;backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);transition:all .3s ease;
}
.tips-card:hover{background:rgba(255,255,255,.1);transform:translateY(-4px)}
.tips-card .tips-icon{width:52px;height:52px;border-radius:14px;background:rgba(184,134,45,.25);display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--color-primary-light);margin-bottom:16px}
.tips-card h3{font-size:15px;margin-bottom:8px;color:#fff}
.tips-card p{font-size:13px;line-height:1.7;color:rgba(240,233,219,.75)}

.faq-section{padding:64px 0;background:var(--color-bg)}
.faq-list{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--color-surface);border:1px solid var(--color-border);
  border-radius:var(--radius-md);margin-bottom:14px;overflow:hidden;
  transition:box-shadow .3s;
}
.faq-item:hover{box-shadow:var(--shadow-sm)}
.faq-item summary{
  cursor:pointer;padding:20px 24px;display:flex;align-items:center;justify-content:space-between;
  font-size:15px;font-weight:600;color:var(--color-text);list-style:none;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:'+';font-size:22px;font-weight:400;color:var(--color-primary);flex-shrink:0;transition:transform .3s;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item[open] summary{color:var(--color-primary)}
.faq-item .faq-content{padding:0 24px 20px;font-size:14px;color:var(--color-text-light);line-height:1.75}

.cta-section{padding:72px 0;background:var(--color-bg-light);border-top:1px solid var(--color-border)}
.cta-box{
  max-width:900px;margin:0 auto;background:var(--color-surface);
  border:2px dashed var(--color-border-dark);border-radius:var(--radius-lg);
  padding:48px 40px;text-align:center;position:relative;
}
.cta-box::before{
  content:'';position:absolute;top:10px;left:10px;right:10px;bottom:10px;
  border:1px solid var(--color-border);border-radius:calc(var(--radius-lg) - 8px);pointer-events:none;
}
.cta-box h2{font-family:var(--font-serif);font-size:28px;margin-bottom:10px}
.cta-box p{color:var(--color-text-light);font-size:15px;margin-bottom:28px}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.cta-tip{font-size:12.5px;color:var(--color-text-light);margin-top:18px;display:block}

.site-footer{background:var(--color-bg-dark);color:rgba(240,233,219,.8);padding:64px 0 0;margin-top:0;border-top:none}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:48px;padding-bottom:40px}
.footer-brand .brand{font-size:20px;margin-bottom:16px}
.footer-brand .brand-mark{width:44px;height:44px;font-size:21px}
.footer-desc{font-size:13.5px;line-height:1.8;color:rgba(240,233,219,.6);max-width:320px;margin-top:12px}
.footer-col h4{font-size:15px;color:#f0e9db;font-weight:600;margin-bottom:18px;letter-spacing:.04em}
.footer-col a{display:block;font-size:13.5px;color:rgba(240,233,219,.65);padding:5px 0;transition:color .25s,padding-left .25s}
.footer-col a:hover{color:var(--color-primary-light);padding-left:6px}
.footer-line{border:none;border-top:1px solid rgba(255,255,255,.1);margin:0}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding:22px 0;font-size:12.5px;color:rgba(240,233,219,.5);
}

.not-found{
  text-align:center;padding:60px 24px;
}
.not-found i{font-size:56px;color:var(--color-primary-light);margin-bottom:20px;display:block}
.not-found h2{font-family:var(--font-serif);font-size:28px;margin-bottom:12px}
.not-found p{color:var(--color-text-light);margin-bottom:24px}

@media(max-width:1024px){
  .container{padding:0 20px}
  .article-layout{grid-template-columns:1fr;gap:32px}
  .article-sidebar{position:static;flex-direction:row;flex-wrap:wrap}
  .sidebar-card{flex:1 1 calc(50% - 14px)}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .tips-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media(max-width:768px){
  .section-title{font-size:28px}
  .article-header-title{font-size:26px}
  .nav-toggle{display:flex}
  .nav-links{
    position:fixed;top:var(--header-h);left:0;right:0;bottom:0;z-index:999;
    background:rgba(31,26,20,.96);backdrop-filter:blur(20px);
    flex-direction:column;align-items:flex-start;gap:4px;padding:28px 24px 40px;
    transform:translateX(100%);transition:transform .35s ease;overflow-y:auto;
    border-top:1px solid rgba(255,255,255,.08);
  }
  .nav-links.open{transform:translateX(0)}
  .nav-links>li{width:100%}
  .nav-link{display:block;padding:14px 12px;font-size:16px;color:rgba(255,255,255,.9)}
  .nav-link.active{background:rgba(184,134,45,.15)}
  .nav-cta a{margin-left:0;margin-top:12px;width:100%}
  .site-header.scrolled .nav-links{background:rgba(31,26,20,.96)}
  .site-header.scrolled .nav-link{color:rgba(255,255,255,.9)}
  .site-header.scrolled .nav-link:hover{color:#fff;background:rgba(255,255,255,.1)}
  .site-header.scrolled .nav-link.active{color:var(--color-primary-light);background:rgba(184,134,45,.15)}
  .article-banner{min-height:340px;padding:120px 0 40px}
  .article-main{padding:32px 24px}
  .related-grid{grid-template-columns:1fr}
  .tips-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-brand .footer-desc{max-width:100%}
  .cta-box{padding:36px 24px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
}
@media(max-width:520px){
  html{font-size:15px}
  .container{padding:0 16px}
  .brand-name{font-size:16px}
  .brand-mark{width:36px;height:36px;font-size:17px}
  .article-header-title{font-size:22px}
  .article-meta{font-size:13px;gap:12px}
  .article-main{padding:28px 20px}
  .related-card .related-img{height:160px}
  .faq-item summary{font-size:14px;padding:18px 18px}
  .faq-item .faq-content{padding:0 18px 18px}
  .cta-box h2{font-size:22px}
  .footer-bottom{flex-direction:column;text-align:center}
}
:focus-visible{outline:3px solid rgba(184,134,45,.5);outline-offset:2px}

/* roulang page: category2 */
:root {
  --primary: #c47b1e;
  --primary-dark: #9a5f13;
  --primary-light: #ecd6b5;
  --secondary: #2d2a26;
  --bg-main: #f7f2ea;
  --bg-card: #ffffff;
  --bg-dark: #201d19;
  --text-main: #26221e;
  --text-body: #4a443e;
  --text-light: #8a8278;
  --border: #e3d8c8;
  --border-dark: #55483c;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 4px 24px rgba(45, 42, 38, 0.08);
  --shadow-lg: 0 14px 44px rgba(45, 42, 38, 0.15);
  --shadow-btn: 0 3px 0 var(--primary-dark);
  --font-main: -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", "Microsoft YaHei", sans-serif;
  --nav-h: 76px;
  --spacer: 5.2rem;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-main);
  background-image: radial-gradient(rgba(45, 42, 38, 0.035) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--text-body);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.25s ease;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, select, textarea {
  font-family: inherit;
}

ul, ol {
  list-style: none;
}

.container {
  width: min(1200px, 92%);
  margin: 0 auto;
}

/* ---------- 导航 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(247, 242, 234, 0.72);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.35);
  box-shadow: 0 2px 24px rgba(45, 42, 38, 0.06);
  transition: background 0.35s ease, box-shadow 0.35s ease;
}

.site-header.scrolled {
  background: rgba(247, 242, 234, 0.93);
  box-shadow: 0 4px 30px rgba(45, 42, 38, 0.12);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}

.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--secondary);
  color: #f3ead8;
  font-size: 1.2rem;
  font-weight: 700;
  border-radius: 10px;
  border: 2px solid #3f3a33;
  box-shadow: inset 0 -2px 0 rgba(0, 0, 0, 0.25), 0 2px 6px rgba(45, 42, 38, 0.18);
}

.brand-name {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.nav-links > li {
  position: relative;
}

.nav-link {
  display: block;
  padding: 0.5rem 0.9rem;
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--text-body);
  border-radius: 8px;
  line-height: 1.4;
  transition: background 0.22s, color 0.22s, transform 0.22s;
}

.nav-link:hover {
  background: rgba(196, 123, 30, 0.1);
  color: var(--primary);
}

.nav-link.active {
  background: rgba(196, 123, 30, 0.12);
  color: var(--primary-dark);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -4px;
  transform: translateX(-50%);
  width: 22px;
  height: 3px;
  background: var(--primary);
  border-radius: 3px;
}

.nav-cta {
  margin-left: 0.8rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.6);
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text-main);
  border-radius: 3px;
  transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1.4;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius-sm);
  transition: all 0.22s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  border: 2px solid var(--primary-dark);
  box-shadow: var(--shadow-btn);
}

.btn-primary:hover {
  background: #d5872c;
  transform: translateY(-2px);
  box-shadow: 0 5px 0 var(--primary-dark);
}

.btn-primary:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 var(--primary-dark);
}

.btn-outline-light {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(6px);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: #fff;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 1.05rem;
  font-size: 0.88rem;
  border-radius: 8px;
  box-shadow: 0 2px 0 var(--primary-dark);
}

/* ---------- Hero ---------- */
.page-hero {
  position: relative;
  padding: calc(var(--nav-h) + 5.5rem) 0 5rem;
  background-size: cover;
  background-position: center 30%;
  color: #fff;
  overflow: hidden;
}

.page-hero-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(32, 29, 25, 0.92) 0%, rgba(32, 29, 25, 0.72) 48%, rgba(32, 29, 25, 0.45) 100%);
}

.page-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(196, 123, 30, 0.22);
  border: 1px solid rgba(196, 123, 30, 0.55);
  color: #f3d39a;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 0.35rem 0.9rem;
  border-radius: 30px;
  margin-bottom: 1.2rem;
  backdrop-filter: blur(4px);
}

.page-hero h1 {
  font-size: clamp(2.2rem, 5.4vw, 3.6rem);
  font-weight: 900;
  line-height: 1.18;
  color: #fff;
  margin-bottom: 1rem;
  letter-spacing: 0.01em;
}

.page-hero p {
  font-size: 1.06rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 2rem;
  max-width: 560px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.hero-note {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.6rem;
  font-size: 0.84rem;
  color: rgba(255, 255, 255, 0.66);
}

.hero-note i {
  color: #d5a45c;
}

/* ---------- Section 通用 ---------- */
.section {
  padding: var(--spacer) 0;
}

.section-dark {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.78);
}

.section-dark .section-title,
.section-dark h2,
.section-dark h3 {
  color: #f3ead8;
}

.section-head {
  max-width: 720px;
  margin-bottom: 2.6rem;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--primary);
  background: rgba(196, 123, 30, 0.09);
  border: 1px solid rgba(196, 123, 30, 0.25);
  padding: 0.28rem 0.85rem;
  border-radius: 30px;
  margin-bottom: 0.8rem;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(1.6rem, 3.6vw, 2.4rem);
  font-weight: 900;
  color: var(--text-main);
  line-height: 1.25;
  margin-bottom: 0.8rem;
}

.section-head p {
  font-size: 0.98rem;
  color: var(--text-light);
  line-height: 1.8;
}

/* ---------- 功能卡片 ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.4rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem 1.4rem;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  transition: transform 0.28s ease, box-shadow 0.28s ease;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), #e2a148);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  font-size: 1rem;
  font-weight: 800;
  color: var(--primary-dark);
  background: rgba(196, 123, 30, 0.1);
  border: 1px dashed rgba(196, 123, 30, 0.4);
  border-radius: 12px;
  margin-bottom: 1.1rem;
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  font-size: 1.25rem;
  color: var(--primary);
  background: rgba(196, 123, 30, 0.1);
  border-radius: 14px;
  margin-bottom: 1.1rem;
}

.feature-card h3 {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* ---------- 流程时间线 ---------- */
.process-section {
  background: linear-gradient(160deg, #efe7d9 0%, #f7f2ea 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.6rem;
  counter-reset: process;
}

.process-step {
  position: relative;
  padding: 1.8rem 1.3rem;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(4px);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.process-step::after {
  content: counter(process);
  counter-increment: process;
  position: absolute;
  top: -0.6rem;
  right: 1rem;
  font-size: 2.2rem;
  font-weight: 900;
  color: rgba(196, 123, 30, 0.16);
  line-height: 1;
}

.process-icon {
  font-size: 1.7rem;
  color: var(--primary);
  margin-bottom: 0.8rem;
}

.process-step h3 {
  font-size: 1.02rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.process-step p {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* ---------- 数据区块 ---------- */
.stats-section {
  background: var(--bg-dark);
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -15%;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(196, 123, 30, 0.15), transparent 70%);
  pointer-events: none;
}

.stats-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.stat-item {
  text-align: center;
  padding: 1.2rem 0.6rem;
}

.stat-number {
  font-size: clamp(2rem, 4vw, 2.9rem);
  font-weight: 900;
  color: #e9a54c;
  line-height: 1.1;
  letter-spacing: -0.02em;
  display: flex;
  align-items: baseline;
  justify-content: center;
}

.stat-unit {
  font-size: 1.2rem;
  font-weight: 700;
  margin-left: 0.2rem;
  color: rgba(233, 165, 76, 0.75);
}

.stat-label {
  margin-top: 0.6rem;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.62);
  font-weight: 500;
}

/* ---------- 指南卡片 ---------- */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.8rem;
}

.guide-card {
  display: flex;
  flex-wrap: wrap;
  gap: 1.3rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.4rem;
  box-shadow: var(--shadow);
  transition: transform 0.28s ease, box-shadow 0.28s ease;
}

.guide-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.guide-image {
  flex: 1 1 180px;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  min-height: 150px;
}

.guide-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.guide-badge {
  position: absolute;
  top: 0.6rem;
  left: 0.6rem;
  background: var(--secondary);
  color: #f3ead8;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.65rem;
  border-radius: 20px;
  z-index: 2;
}

.guide-content {
  flex: 1 1 240px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.guide-content h3 {
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.45rem;
}

.guide-content p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 0.8rem;
}

.guide-link {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--primary-dark);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: gap 0.25s ease;
}

.guide-link:hover {
  gap: 0.6rem;
}

/* ---------- FAQ ---------- */
.faq-section {
  background: #efe7d9;
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(45, 42, 38, 0.04);
  transition: box-shadow 0.25s ease;
}

.faq-item:hover {
  box-shadow: var(--shadow);
}

.faq-item summary {
  padding: 1.2rem 1.5rem;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text-main);
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: color 0.2s;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary:hover {
  color: var(--primary-dark);
}

.faq-item summary::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 0.8rem;
  color: var(--primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  transform: rotate(180deg);
}

.faq-item .faq-body {
  padding: 0 1.5rem 1.3rem;
  font-size: 0.94rem;
  color: var(--text-light);
  line-height: 1.8;
  border-top: 1px dashed var(--border);
  margin: 0 1.5rem;
  padding-left: 0;
  padding-right: 0;
}

/* ---------- CTA ---------- */
.cta-section {
  position: relative;
  padding: 4.5rem 0;
  background-size: cover;
  background-position: center;
  background-color: var(--bg-dark);
  overflow: hidden;
}

.cta-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(32, 29, 25, 0.94) 30%, rgba(32, 29, 25, 0.7) 100%);
}

.cta-card {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 2.8rem;
  backdrop-filter: blur(6px);
}

.cta-info h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.cta-info p {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.96rem;
  max-width: 460px;
}

.cta-actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: #1d1a16;
  color: rgba(255, 255, 255, 0.55);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.4rem;
}

.footer-brand .brand-name {
  color: #f3ead8;
}

.footer-brand .brand-mark {
  background: var(--primary);
  border-color: #a76a17;
}

.footer-desc {
  margin-top: 1rem;
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.48);
  max-width: 320px;
}

.footer-col h4 {
  font-size: 0.96rem;
  font-weight: 800;
  color: #ede4d2;
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
}

.footer-col a {
  display: block;
  font-size: 0.88rem;
  padding: 0.3rem 0;
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.22s, padding-left 0.22s;
}

.footer-col a:hover {
  color: #e0a558;
  padding-left: 0.35rem;
}

.footer-line {
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 1.5rem;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: space-between;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.34);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 860px) {
  :root {
    --nav-h: 64px;
    --spacer: 3.8rem;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.2rem;
    background: rgba(247, 242, 234, 0.97);
    backdrop-filter: blur(20px);
    padding: 1rem 5%;
    box-shadow: 0 16px 40px rgba(45, 42, 38, 0.16);
    border-bottom: 1px solid var(--border);
    transform: translateY(-18px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-links li {
    text-align: center;
  }

  .nav-link.active::after {
    display: none;
  }

  .nav-cta {
    margin: 0.5rem 0 0;
  }

  .guide-grid {
    grid-template-columns: 1fr;
  }

  .cta-card {
    padding: 2rem;
  }
}

@media (max-width: 620px) {
  .page-hero {
    padding: calc(var(--nav-h) + 4rem) 0 3.6rem;
  }

  .page-hero p {
    font-size: 0.95rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .process-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.8rem;
  }

  .footer-col h4 {
    margin-bottom: 0.6rem;
  }

  .cta-card {
    padding: 1.6rem;
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-actions .btn {
    width: 100%;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 420px) {
  .brand-name {
    font-size: 0.92rem;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
  }

  .section-title {
    font-size: 1.45rem;
  }

  .faq-item summary {
    font-size: 0.95rem;
    padding: 1rem 1.1rem;
  }
}

/* roulang page: category3 */
/* ========== 设计变量 ========== */
:root {
  --primary: #4A3F35;
  --primary-dark: #2E2720;
  --primary-light: #7A6A58;
  --accent: #C08A3E;
  --accent-light: #D9B36C;
  --accent-dark: #9A6A28;
  --bg: #F2EBDF;
  --bg-soft: #F8F2E9;
  --bg-card: #FFFCF6;
  --bg-dark: #2E2720;
  --text-main: #2E2720;
  --text-soft: #6B5D4F;
  --text-invert: #F8F2E9;
  --border: #E0D3C0;
  --border-dark: #C4B4A0;
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,.06);
  --shadow-md: 0 8px 24px rgba(0,0,0,.08);
  --shadow-lg: 0 16px 40px rgba(0,0,0,.12);
  --transition: .3s ease;
  --font-sans: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}

/* ========== 基础 Reset ========== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }
ul, ol, p, h1, h2, h3, h4, h5, h6 { margin: 0; padding: 0; }
ul { list-style: none; }

/* ========== 容器 ========== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ========== Header 导航 ========== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(46, 39, 32, .35);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,.14);
  transition: background .4s ease, box-shadow .4s ease, border-color .4s ease;
}
.site-header.scrolled {
  background: rgba(46, 39, 32, .92);
  box-shadow: 0 8px 30px rgba(0,0,0,.28);
  border-bottom-color: rgba(255,255,255,.08);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--accent-light), var(--accent));
  color: #2E2720;
  font-size: 20px;
  font-weight: 800;
  border-radius: 12px;
  box-shadow: 0 4px 14px rgba(192,138,62,.4);
}
.brand-name {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 1px;
  color: #FFF;
  white-space: nowrap;
}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links li { position: relative; }
.nav-link {
  display: inline-block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,.85);
  border-radius: 40px;
  letter-spacing: .3px;
  transition: color .3s, background .3s;
}
.nav-link:hover { color: #FFF; background: rgba(255,255,255,.12); }
.nav-link.active { color: #2E2720; background: var(--accent); font-weight: 600; }
.nav-cta { margin-left: 10px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 40px;
  font-weight: 600;
  letter-spacing: .4px;
  transition: transform .3s, box-shadow .3s, background .3s, border-color .3s;
  border: 2px solid transparent;
}
.btn-sm { padding: 8px 20px; font-size: 14px; }
.btn-md { padding: 13px 32px; font-size: 16px; }
.btn-primary { background: var(--accent); color: #2E2720; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-light); border-color: var(--accent-light); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(192,138,62,.35); }
.btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,.6); }
.btn-outline:hover { background: rgba(255,255,255,.12); border-color: #fff; transform: translateY(-2px); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px; height: 42px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 10px;
  padding: 10px;
}
.nav-toggle span { display: block; height: 2px; width: 100%; background: #fff; border-radius: 2px; transition: .3s; }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ========== 页面 Hero ========== */
.page-hero {
  position: relative;
  padding: 150px 0 110px;
  background: linear-gradient(105deg, rgba(46,39,32,.88), rgba(74,63,53,.72)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  text-align: center;
  color: var(--text-invert);
  border-bottom: 4px solid var(--accent);
}
.page-hero::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 24px;
  background: linear-gradient(to right, transparent, rgba(192,138,62,.5), transparent);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(192,138,62,.2);
  border: 1px solid rgba(192,138,62,.6);
  border-radius: 40px;
  color: var(--accent-light);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.page-hero h1 {
  font-size: 46px;
  font-weight: 800;
  letter-spacing: 2px;
  line-height: 1.3;
  margin-bottom: 16px;
  text-shadow: 0 4px 20px rgba(0,0,0,.3);
}
.page-hero p {
  max-width: 680px;
  margin: 0 auto 28px;
  font-size: 17px;
  color: rgba(255,255,255,.82);
  line-height: 1.8;
}
.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,.6);
}
.breadcrumb a { color: rgba(255,255,255,.8); }
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb i { font-size: 10px; line-height: 22px; }

/* ========== 通用板块 ========== */
.section {
  padding: 90px 0;
}
.section-head {
  text-align: left;
  max-width: 780px;
  margin-bottom: 44px;
}
.section-sub {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-sub::before {
  content: "";
  width: 28px; height: 2px;
  background: var(--accent);
}
.section-head h2 { font-size: 34px; font-weight: 800; line-height: 1.3; margin-bottom: 14px; letter-spacing: 1px; }
.section-head p { color: var(--text-soft); font-size: 16px; max-width: 660px; }
.section-more { display: inline-flex; align-items: center; gap: 6px; font-size: 15px; color: var(--accent-dark); font-weight: 600; }
.section-more:hover { color: var(--primary); gap: 12px; }

/* ========== 资讯列表 ========== */
.news-section { background: var(--bg); }
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.news-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .35s, box-shadow .35s, border-color .35s;
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-dark);
}
.news-card-thumb { position: relative; display: block; overflow: hidden; aspect-ratio: 16 / 10; }
.news-card-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.news-card:hover .news-card-thumb img { transform: scale(1.05); }
.news-card-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(46,39,32,.25), transparent);
}
.news-card-body { padding: 24px 24px 28px; display: flex; flex-direction: column; flex: 1; }
.news-card-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 40px;
  font-size: 13px;
  font-weight: 600;
  background: rgba(192,138,62,.14);
  color: var(--accent-dark);
  border: 1px solid rgba(192,138,62,.3);
}
.time { font-size: 13px; color: var(--text-soft); }
.news-card h3 { font-size: 19px; line-height: 1.45; margin-bottom: 10px; }
.news-card h3 a { color: var(--text-main); }
.news-card h3 a:hover { color: var(--accent-dark); }
.news-card p { font-size: 15px; color: var(--text-soft); line-height: 1.75; flex: 1; }

/* ========== 版本更新时间线 ========== */
.timeline-section {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
}
.timeline-list { position: relative; max-width: 900px; margin: 0 auto; padding-left: 0; }
.timeline-list::before {
  content: "";
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--primary-light), var(--border));
}
.timeline-item {
  position: relative;
  padding: 0 0 44px 86px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot {
  position: absolute;
  left: 14px;
  top: 4px;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 6px rgba(192,138,62,.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--accent-dark);
}
.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 26px 30px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform .3s, box-shadow .3s;
}
.timeline-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.timeline-version {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-dark);
  background: rgba(192,138,62,.1);
  border-radius: 6px;
  padding: 3px 12px;
  margin-bottom: 10px;
}
.timeline-card h3 { font-size: 21px; margin-bottom: 6px; }
.timeline-card .timeline-date { font-size: 14px; color: var(--text-soft); margin-bottom: 8px; display: block; }
.timeline-card p { color: var(--text-soft); font-size: 15px; }

/* ========== 公告区 ========== */
.announce-section { background: var(--bg-dark); color: var(--text-invert); position: relative; }
.announce-inner {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 60px;
  align-items: center;
}
.announce-info h2 { font-size: 34px; font-weight: 800; line-height: 1.35; margin-bottom: 18px; }
.announce-info p { color: rgba(255,255,255,.72); margin-bottom: 30px; font-size: 16px; max-width: 500px; }
.announce-list { display: flex; flex-direction: column; gap: 14px; }
.announce-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  transition: background .3s, border-color .3s, transform .3s;
}
.announce-item i { color: var(--accent-light); font-size: 18px; margin-top: 3px; }
.announce-item span { display: block; font-size: 14px; color: rgba(255,255,255,.5); margin-bottom: 4px; }
.announce-item strong { font-size: 16px; font-weight: 600; color: #fff; line-height: 1.5; }
.announce-item:hover { background: rgba(255,255,255,.12); transform: translateX(6px); border-color: rgba(192,138,62,.5); }

/* ========== 标签区 ========== */
.tags-section { background: var(--bg); }
.tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  max-width: 820px;
  margin: 0 auto;
}
.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  transition: .3s;
  box-shadow: var(--shadow-sm);
}
.tag-chip i { color: var(--accent-dark); }
.tag-chip:hover { background: var(--primary); color: #fff; transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary); }
.tag-chip:hover i { color: var(--accent-light); }

/* ========== FAQ ========== */
.faq-section { background: var(--bg-soft); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.faq-wrap { max-width: 850px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color .3s, box-shadow .3s;
}
.faq-item.open { border-color: var(--accent); box-shadow: var(--shadow-md); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 28px;
  cursor: pointer;
  font-size: 17px;
  font-weight: 600;
  color: var(--text-main);
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
}
.faq-question i {
  flex-shrink: 0;
  width: 28px; height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(192,138,62,.14);
  color: var(--accent-dark);
  transition: transform .3s, background .3s;
}
.faq-item.open .faq-question i { transform: rotate(180deg); background: var(--accent); color: #fff; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.faq-answer-inner { padding: 0 28px 24px; color: var(--text-soft); font-size: 15px; line-height: 1.8; }
.faq-item.open .faq-answer { max-height: 300px; }

/* ========== CTA ========== */
.cta-section {
  position: relative;
  padding: 100px 0;
  background: linear-gradient(110deg, rgba(46,39,32,.92), rgba(74,63,53,.8)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  text-align: center;
  color: #fff;
}
.cta-section h2 { font-size: 36px; font-weight: 800; margin-bottom: 16px; letter-spacing: 1px; }
.cta-section p { max-width: 620px; margin: 0 auto 32px; color: rgba(255,255,255,.76); font-size: 17px; line-height: 1.8; }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }

/* ========== Footer ========== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,.75);
  padding: 70px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 50px;
  margin-bottom: 44px;
}
.footer-brand .brand-name { color: #fff; }
.footer-desc { margin: 20px 0 0; color: rgba(255,255,255,.55); font-size: 14px; line-height: 1.8; max-width: 360px; }
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.footer-col a {
  display: block;
  color: rgba(255,255,255,.6);
  font-size: 15px;
  margin-bottom: 10px;
  transition: color .3s, transform .3s;
}
.footer-col a:hover { color: var(--accent-light); transform: translateX(4px); }
.footer-line { border: none; border-top: 1px solid rgba(255,255,255,.1); margin: 0 0 24px; }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,.4);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .announce-inner { gap: 40px; }
  .container { padding: 0 20px; }
  .section { padding: 74px 0; }
  .page-hero h1 { font-size: 38px; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 74px;
    right: 0;
    width: 280px;
    height: auto;
    max-height: calc(100vh - 74px);
    background: rgba(46,39,32,.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 14px;
    border-radius: 0 0 0 18px;
    border-left: 1px solid rgba(255,255,255,.1);
    border-bottom: 1px solid rgba(255,255,255,.1);
    box-shadow: -10px 20px 40px rgba(0,0,0,.4);
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    transition: .4s ease;
  }
  .nav-links.open { transform: translateX(0); opacity: 1; visibility: visible; }
  .nav-links li { width: 100%; }
  .nav-link, .nav-links .btn { display: block; text-align: center; margin: 0 auto; }
  .nav-cta { margin-left: 0; padding: 6px 0 10px; }
  .nav-toggle { display: flex; }
  .page-hero { padding: 130px 0 80px; }
  .page-hero h1 { font-size: 31px; }
  .page-hero p { font-size: 15px; }
  .section-head h2 { font-size: 28px; }
  .news-grid { grid-template-columns: 1fr; }
  .announce-inner { grid-template-columns: 1fr; gap: 32px; }
  .timeline-item { padding: 0 0 36px 70px; }
  .timeline-list::before { left: 20px; }
  .timeline-dot { left: 8px; width: 26px; height: 26px; }
  .timeline-card { padding: 20px 22px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .cta-section h2 { font-size: 30px; }
  .cta-section { padding: 70px 0; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .brand-name { font-size: 16px; letter-spacing: 0; }
  .brand-mark { width: 34px; height: 34px; font-size: 16px; }
  .nav-inner { height: 64px; }
  .page-hero { padding: 110px 0 64px; }
  .page-hero h1 { font-size: 26px; }
  .section { padding: 60px 0; }
  .section-head h2 { font-size: 24px; }
  .news-card-body { padding: 18px 18px 22px; }
  .tag-chip { padding: 10px 18px; font-size: 13px; }
  .faq-question { padding: 18px 20px; font-size: 15px; }
  .faq-answer-inner { padding: 0 20px 20px; }
  .cta-actions .btn { width: 100%; }
  .footer-bottom { flex-direction: column; text-align: center; }
}