/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --color-bg-dark:#14100C;
  --color-bg-body:#F5F1E8;
  --color-bg-card:#FFFDF8;
  --color-primary:#2B241C;
  --color-secondary:#4A5A3E;
  --color-accent:#E8873C;
  --color-border-dark:#2C291F;
  --color-border-light:#E5DFD3;
  --color-text-strong:#1D1A16;
  --color-text-muted:#6B6358;
  --color-text-on-dark:#EFEAE0;
  --radius-sm:4px;
  --radius-md:8px;
  --shadow-sm:0 2px 10px rgba(0,0,0,0.07);
  --shadow-md:0 8px 30px rgba(0,0,0,0.18);
  --header-h:64px;
  --space-section:84px;
  --space-section-mobile:48px;
  --max-width:1200px;
}

/* ============ Reset / Base ============ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--color-bg-body);
  color:var(--color-text-strong);
  font-size:16px;
  line-height:1.7;
  padding-bottom:64px;
}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;font-size:inherit}
input,select,textarea{font-family:inherit;font-size:inherit;border:1px solid var(--color-border-light);background:var(--color-bg-card);border-radius:var(--radius-sm);padding:12px 14px;width:100%;transition:border-color .2s ease,box-shadow .2s ease;color:var(--color-text-strong)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px rgba(232,135,60,0.15)}
input::placeholder{color:var(--color-text-muted)}
.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}
@media(min-width:768px){.container{padding:0 40px}}
.section{padding:var(--space-section-mobile) 0}
@media(min-width:768px){.section{padding:var(--space-section) 0}}
.section-dark{background:var(--color-bg-dark);color:var(--color-text-on-dark)}

/* ============ 辅助类 ============ */
.section-num{
  display:inline-block;
  font-family:"Courier New",monospace;
  font-size:13px;
  letter-spacing:2px;
  color:var(--color-accent);
  text-transform:uppercase;
  margin-bottom:10px;
  font-weight:700;
}
.section-num-dark{color:var(--color-accent)}
.section-head{margin-bottom:48px;max-width:680px}
.section-head h2{font-size:28px;font-weight:800;line-height:1.3;color:var(--color-text-strong);margin-bottom:12px}
.section-head p{color:var(--color-text-muted);font-size:15px}
.section-dark .section-head h2{color:var(--color-text-on-dark)}
.section-dark .section-head p{color:rgba(239,234,224,0.7)}
@media(min-width:768px){.section-head h2{font-size:34px}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 28px;
  border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;
  transition:all .25s ease;
  white-space:nowrap;
}
.btn-cut{clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,12px 100%,0 calc(100% - 12px))}
.btn-primary{background:var(--color-accent);color:#fff;border:1px solid var(--color-accent)}
.btn-primary:hover{background:#cf6f28;transform:translateY(-2px);box-shadow:0 6px 20px rgba(232,135,60,0.35)}
.btn-primary:active{transform:translateY(0)}
.btn-primary:focus{outline:2px solid var(--color-accent);outline-offset:2px}
.btn-outline{background:transparent;color:var(--color-text-on-dark);border:1px solid rgba(239,234,224,0.5)}
.btn-outline:hover{border-color:var(--color-accent);color:var(--color-accent);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.btn-outline:focus{outline:2px solid var(--color-accent);outline-offset:2px}
.btn-sm{height:38px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.btn-dark{background:var(--color-primary);color:#fff;border:1px solid var(--color-primary)}
.btn-dark:hover{background:#3a3025;transform:translateY(-2px)}
@media(max-width:520px){
  .btn{width:100%;margin-bottom:8px}
  .hero-actions .btn{margin-right:0}
}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(20,16,12,0.97);
  border-bottom:1px solid var(--color-border-dark);
  height:var(--header-h);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:100%;
}
.header-logo{
  font-size:17px;font-weight:800;letter-spacing:1px;
  color:var(--color-text-on-dark);
  text-align:center;
  flex-shrink:0;
}
.header-logo .logo-accent{color:var(--color-accent)}
.nav-left,.nav-right{display:none;align-items:center;gap:4px}
.nav-left a,.nav-right a{
  color:rgba(239,234,224,0.75);
  font-size:14px;font-weight:500;
  padding:8px 12px;border-radius:var(--radius-sm);
  position:relative;transition:color .2s ease;
}
.nav-left a:hover,.nav-right a:hover{color:var(--color-accent)}
.nav-left a.active,.nav-right a.active{color:var(--color-accent)}
.nav-left a.active::after,.nav-right a.active::after{
  content:'';position:absolute;bottom:0;left:12px;right:12px;height:2px;background:var(--color-accent);
}
.menu-toggle{
  display:flex;flex-direction:column;gap:5px;
  width:44px;height:44px;align-items:center;justify-content:center;
  border-radius:var(--radius-sm);
}
.menu-toggle span{display:block;width:22px;height:2px;background:var(--color-text-on-dark);transition:all .3s ease}
.menu-toggle:hover span{background:var(--color-accent)}
@media(min-width:1024px){
  .nav-left,.nav-right{display:flex}
  .menu-toggle{display:none}
}
@media(max-width:1023px){
  .header-inner{justify-content:space-between;padding:0 24px}
  .header-logo{order:2;font-size:15px}
  .menu-toggle{order:3}
  .nav-left{display:none}
  .nav-right{display:none}
}
.mobile-menu{
  position:fixed;top:var(--header-h);left:0;right:0;z-index:999;
  background:rgba(20,16,12,0.98);
  border-bottom:1px solid var(--color-border-dark);
  display:none;flex-direction:column;
  padding:12px 24px 20px;
}
.mobile-menu.open{display:flex}
.mobile-menu a{
  color:var(--color-text-on-dark);font-size:16px;
  padding:14px 0;border-bottom:1px solid rgba(255,255,255,0.06);
}
.mobile-menu a:hover,.mobile-menu a.active{color:var(--color-accent)}
.mobile-menu a:last-child{border-bottom:none}

/* ============ Hero ============ */
.hero{
  position:relative;
  min-height:90vh;
  display:flex;align-items:center;
  background:url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
  color:var(--color-text-on-dark);
  overflow:hidden;
  padding:calc(var(--header-h) + 48px) 0 80px;
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,16,12,0.55) 0%,rgba(20,16,12,0.78) 60%,var(--color-bg-dark) 100%);
}
.hero-grid-line{
  position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,0.028) 0,rgba(255,255,255,0.028) 1px,transparent 1px,transparent 44px),
    repeating-linear-gradient(90deg,rgba(255,255,255,0.028) 0,rgba(255,255,255,0.028) 1px,transparent 1px,transparent 44px);
}
.hero-corner{position:absolute;font-family:"Courier New",monospace;font-size:12px;letter-spacing:2px;color:rgba(255,255,255,0.35);z-index:2}
.hero-corner-tl{top:16px;left:16px}
.hero-corner-br{bottom:16px;right:16px;text-transform:uppercase}
.hero-inner{position:relative;z-index:3;display:grid;grid-template-columns:1fr;gap:40px;width:100%}
@media(min-width:1024px){
  .hero-inner{grid-template-columns:1.1fr 0.9fr;align-items:center;gap:64px}
}
.hero-badge{
  display:inline-block;
  border:1px solid var(--color-accent);
  color:var(--color-accent);
  font-size:12px;letter-spacing:2px;
  padding:5px 14px;border-radius:2px;
  margin-bottom:20px;
  text-transform:uppercase;
}
.hero-title{
  font-size:30px;font-weight:900;line-height:1.25;
  margin-bottom:18px;
}
.hero-title .hero-line-1{display:block;color:#fff}
.hero-title .hero-line-2{display:block;color:var(--color-accent)}
@media(min-width:768px){
  .hero-title{font-size:40px}
}
.hero-desc{
  font-size:16px;line-height:1.8;
  color:rgba(239,234,224,0.85);
  margin-bottom:30px;
  max-width:440px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
@media(max-width:520px){
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
}
.hero-panel{
  background:rgba(20,16,12,0.85);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:var(--radius-md);
  padding:28px 24px;
  box-shadow:0 10px 40px rgba(0,0,0,0.4);
}
.panel-header{
  display:flex;align-items:center;gap:12px;
  margin-bottom:20px;
  border-bottom:1px solid rgba(255,255,255,0.08);
  padding-bottom:14px;
}
.panel-index{
  font-family:"Courier New",monospace;
  font-size:22px;font-weight:700;
  color:var(--color-accent);
}
.panel-label{font-size:14px;color:rgba(239,234,224,0.7);letter-spacing:1px}
.panel-item{
  display:flex;align-items:center;gap:12px;
  padding:12px 0;
  border-bottom:1px solid rgba(255,255,255,0.05);
}
.panel-item:last-child{border-bottom:none}
.panel-rank{
  font-family:"Courier New",monospace;
  font-size:14px;font-weight:700;
  color:var(--color-accent);
  flex-shrink:0;
}
.panel-name{
  font-size:13px;color:rgba(239,234,224,0.8);
  flex-shrink:0;width:96px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.panel-bar{
  flex:1;height:4px;background:rgba(255,255,255,0.08);
  border-radius:2px;overflow:hidden;
}
.panel-bar i{
  display:block;height:100%;
  background:var(--color-accent);
  border-radius:2px;
}
.panel-num{
  font-family:"Courier New",monospace;
  font-size:14px;font-weight:700;
  color:var(--color-text-on-dark);
  flex-shrink:0;
}
.hero-scroll{
  position:absolute;bottom:24px;left:50%;transform:translateX(-50%);
  z-index:3;
  font-family:"Courier New",monospace;
  font-size:11px;letter-spacing:3px;
  color:rgba(255,255,255,0.4);
  display:flex;flex-direction:column;align-items:center;gap:6px;
}
.hero-scroll::after{
  content:'';display:block;width:1px;height:28px;
  background:linear-gradient(180deg,rgba(255,255,255,0.4),transparent);
}

/* ============ 卖点三连（非对称） ============ */
.featured-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
}
@media(min-width:900px){
  .featured-grid{
    grid-template-columns:repeat(3,1fr);
    grid-auto-flow:dense;
  }
  .featured-card-big{grid-column:1/3;grid-row:1}
  .featured-card-vertical{grid-column:3;grid-row:1/3}
  .featured-card-half{grid-column:span 1}
}
.featured-card{
  background:var(--color-bg-card);
  border:1px solid var(--color-border-light);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  position:relative;
}
.featured-card:hover{
  border-color:var(--color-accent);
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
}
.featured-card .card-img{position:relative;height:190px;overflow:hidden;background:#ddd}
.featured-card .card-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.featured-card:hover .card-img img{transform:scale(1.04)}
.featured-card-vertical .card-img{height:220px}
.card-num{
  position:absolute;top:12px;left:12px;z-index:2;
  font-family:"Courier New",monospace;
  font-size:15px;font-weight:700;
  background:rgba(20,16,12,0.75);
  color:var(--color-accent);
  padding:4px 10px;border-radius:var(--radius-sm);
}
.card-body{padding:22px 24px 26px}
.card-body h3{font-size:19px;font-weight:700;margin-bottom:8px;color:var(--color-text-strong)}
.card-body p{font-size:14px;color:var(--color-text-muted);line-height:1.7}
.card-tag{
  display:inline-block;
  font-size:12px;color:var(--color-secondary);
  border:1px solid var(--color-secondary);
  padding:2px 10px;border-radius:20px;
  margin-bottom:10px;
}
@media(max-width:520px){
  .featured-card .card-img{height:150px}
}

/* ============ 场景演示（深色） ============ */
.process-grid{
  display:grid;grid-template-columns:1fr;gap:48px;
}
@media(min-width:1024px){
  .process-grid{grid-template-columns:1.05fr 0.95fr;align-items:center;gap:64px}
}
.process-media img{width:100%;border-radius:var(--radius-md);border:1px solid rgba(255,255,255,0.1)}
.video-block{
  position:relative;
  margin-top:20px;
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid rgba(255,255,255,0.1);
}
.video-block img{width:100%;height:200px;object-fit:cover;opacity:0.85}
.play-btn{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:56px;height:56px;border-radius:50%;
  background:var(--color-accent);color:#fff;
  font-size:18px;display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 0 8px rgba(232,135,60,0.25);
  transition:all .25s ease;
}
.play-btn:hover{box-shadow:0 0 0 12px rgba(232,135,60,0.3);transform:translate(-50%,-50%) scale(1.05)}
.video-tip{
  position:absolute;bottom:10px;left:10px;
  font-size:12px;color:rgba(255,255,255,0.6);
  background:rgba(0,0,0,0.5);
  padding:4px 10px;border-radius:var(--radius-sm);
}
.process-content h2{font-size:28px;font-weight:800;line-height:1.3;margin-bottom:14px;color:#fff}
.process-content>p{color:rgba(239,234,224,0.7);font-size:15px;margin-bottom:30px}
@media(min-width:768px){.process-content h2{font-size:34px}}
.process-steps{display:flex;flex-direction:column;gap:24px;margin-bottom:32px}
.step-item{
  display:flex;gap:18px;
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:var(--radius-md);
  padding:20px 22px;
  transition:border-color .25s ease;
}
.step-item:hover{border-color:rgba(232,135,60,0.5)}
.step-num{
  font-family:"Courier New",monospace;
  font-size:20px;font-weight:700;
  color:var(--color-accent);
  flex-shrink:0;
}
.step-item h3{font-size:16px;font-weight:700;color:#fff;margin-bottom:4px}
.step-item p{font-size:13px;color:rgba(239,234,224,0.65);line-height:1.6}

/* ============ 时段卡 ============ */
.schedule-grid{
  display:grid;grid-template-columns:1fr;gap:24px;
}
@media(min-width:768px){
  .schedule-grid{grid-template-columns:repeat(3,1fr)}
}
.schedule-card{
  background:var(--color-bg-card);
  border:1px solid var(--color-border-light);
  border-radius:var(--radius-md);
  padding:26px 24px;
  transition:all .25s ease;
  position:relative;
  overflow:hidden;
}
.schedule-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--color-accent);
  opacity:0.6;
}
.schedule-card:hover{
  border-color:var(--color-accent);
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
}
.schedule-tag{
  display:inline-block;
  font-size:12px;
  background:rgba(74,90,62,0.1);
  color:var(--color-secondary);
  padding:3px 12px;border-radius:20px;
  margin-bottom:14px;font-weight:600;
}
.schedule-card h3{
  font-size:24px;font-weight:800;color:var(--color-text-strong);
  font-family:"Courier New",monospace;
  margin-bottom:8px;
}
.schedule-card p{font-size:13px;color:var(--color-text-muted)}

/* ============ 资讯区 ============ */
.news-grid{
  display:grid;grid-template-columns:1fr;gap:32px;
}
@media(min-width:1024px){
  .news-grid{grid-template-columns:1.4fr 0.6fr;align-items:start}
}
.news-list{display:flex;flex-direction:column}
.news-item{
  display:flex;align-items:center;gap:16px;
  padding:18px 12px;
  border-bottom:1px solid var(--color-border-light);
  transition:all .2s ease;
  border-radius:var(--radius-sm);
}
.news-item:hover{background:var(--color-bg-card);padding-left:20px;transform:translateX(4px)}
.news-item:hover .news-title{color:var(--color-accent)}
.news-date{
  font-family:"Courier New",monospace;
  font-size:13px;color:var(--color-text-muted);
  flex-shrink:0;
  background:rgba(74,90,62,0.1);
  padding:2px 10px;border-radius:20px;
}
.news-title{font-size:15px;font-weight:500;color:var(--color-text-strong);flex:1}
.news-arrow{color:var(--color-accent);font-size:18px;flex-shrink:0;transition:transform .2s ease}
.news-item:hover .news-arrow{transform:translateX(4px)}
.news-sidebar{
  background:var(--color-bg-card);
  border:1px solid var(--color-border-light);
  border-radius:var(--radius-md);
  padding:24px;
}
.side-title{
  display:block;font-size:15px;font-weight:700;
  color:var(--color-text-strong);
  margin-bottom:14px;
  padding-bottom:10px;
  border-bottom:2px solid var(--color-accent);
}
.side-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.side-tags .tag{
  font-size:13px;color:var(--color-text-muted);
  border:1px solid var(--color-border-light);
  padding:4px 12px;border-radius:20px;
  transition:all .2s ease;
}
.side-tags .tag:hover{background:var(--color-accent);color:#fff;border-color:var(--color-accent)}
.side-rec{display:flex;flex-direction:column;gap:10px}
.side-rec a{
  font-size:14px;color:var(--color-text-strong);
  padding:8px 0;
  border-bottom:1px dashed var(--color-border-light);
  transition:color .2s ease;
}
.side-rec a:hover{color:var(--color-accent)}
.side-rec .rec-date{font-size:12px;color:var(--color-text-muted);display:block;margin-top:2px}

/* ============ 社会认同 ============ */
.proof-stats{
  display:grid;grid-template-columns:repeat(2,1fr);gap:24px;
  margin-bottom:56px;
}
@media(min-width:768px){
  .proof-stats{grid-template-columns:repeat(4,1fr)}
}
.stat-item{
  text-align:center;padding:24px 16px;
  background:var(--color-bg-card);
  border:1px solid var(--color-border-light);
  border-radius:var(--radius-md);
  transition:all .25s ease;
}
.stat-item:hover{box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.stat-num{
  display:block;
  font-family:"Courier New",monospace;
  font-size:32px;font-weight:800;
  color:var(--color-accent);
  line-height:1.1;
  margin-bottom:6px;
}
.stat-label{font-size:14px;color:var(--color-text-muted)}
.testimonials{
  display:grid;grid-template-columns:1fr;gap:20px;
}
@media(min-width:768px){
  .testimonials{grid-template-columns:repeat(3,1fr)}
}
.testimonial-card{
  background:var(--color-bg-card);
  border:1px solid var(--color-border-light);
  border-radius:var(--radius-md);
  padding:28px 24px;
  position:relative;
  border-left:3px solid var(--color-accent);
  transition:all .25s ease;
}
.testimonial-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.quote-mark{
  font-family:Georgia,serif;
  font-size:40px;line-height:0;
  color:var(--color-accent);
  display:block;margin-bottom:14px;
}
.testimonial-card p{
  font-size:14px;color:var(--color-text-strong);
  line-height:1.8;
  margin-bottom:16px;
}
.quote-author{
  font-size:13px;color:var(--color-text-muted);
  display:flex;align-items:center;gap:8px;
}
.quote-author::before{
  content:'';width:24px;height:1px;background:var(--color-accent);
}

/* ============ 预约表单 ============ */
.contact{
  background:var(--color-bg-dark);
  color:var(--color-text-on-dark);
  position:relative;
  overflow:hidden;
}
.contact-grid{
  display:grid;grid-template-columns:1fr;gap:40px;
}
@media(min-width:1024px){
  .contact-grid{grid-template-columns:0.9fr 1.1fr;gap:64px;align-items:start}
}
.contact-info h2{font-size:28px;font-weight:800;color:#fff;margin-bottom:12px}
@media(min-width:768px){.contact-info h2{font-size:34px}}
.contact-info>p{color:rgba(239,234,224,0.7);font-size:15px;margin-bottom:28px}
.contact-meta{display:flex;flex-direction:column;gap:12px}
.contact-meta li{
  font-size:14px;color:rgba(239,234,224,0.8);
  display:flex;align-items:center;gap:10px;
}
.contact-meta li::before{
  content:'';width:6px;height:6px;
  background:var(--color-accent);
  border-radius:1px;
  flex-shrink:0;
}
.contact-form{
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:var(--radius-md);
  padding:32px 28px;
}
.form-group{margin-bottom:20px}
.form-group label{
  display:block;font-size:13px;font-weight:600;
  color:rgba(239,234,224,0.8);
  margin-bottom:6px;
}
.form-group input,.form-group select{
  background:rgba(255,255,255,0.07);
  border-color:rgba(255,255,255,0.14);
  color:var(--color-text-on-dark);
}
.form-group input:focus,.form-group select:focus{border-color:var(--color-accent)}
.form-group input::placeholder{color:rgba(239,234,224,0.4)}
.form-group select option{color:var(--color-text-strong)}

/* ============ FAQ ============ */
.faq-list{max-width:860px;margin:0 auto}
.faq-item{
  border-bottom:1px solid var(--color-border-light);
  margin-bottom:0;
}
.faq-item:first-child{border-top:1px solid var(--color-border-light)}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:24px 4px;
  font-size:16px;font-weight:600;
  color:var(--color-text-strong);
  text-align:left;
  transition:color .2s ease;
}
.faq-question:hover{color:var(--color-accent)}
.faq-icon{
  font-size:22px;font-weight:300;
  color:var(--color-accent);
  transition:transform .3s ease;
  flex-shrink:0;
}
.faq-item.active .faq-icon{transform:rotate(45deg)}
.faq-answer{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease;
}
.faq-item.active .faq-answer{max-height:280px}
.faq-answer p{
  padding:0 4px 22px;
  font-size:14px;color:var(--color-text-muted);
  line-height:1.9;
}

/* ============ 底部固定转化条 ============ */
.bottom-bar{
  position:fixed;bottom:0;left:0;right:0;z-index:900;
  background:rgba(20,16,12,0.95);
  border-top:1px solid var(--color-accent);
  padding:10px 0;
  backdrop-filter:blur(4px);
}
.bottom-bar-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;
}
.bar-text{
  font-size:14px;color:var(--color-text-on-dark);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.bar-text .bar-highlight{color:var(--color-accent);font-weight:700}
@media(max-width:520px){
  .bar-text{font-size:12px}
  .bottom-bar .btn{padding:0 14px;font-size:13px;height:34px}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--color-bg-dark);
  color:var(--color-text-on-dark);
  padding:64px 0 0;
  border-top:1px solid var(--color-border-dark);
}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:36px;
  padding-bottom:48px;
}
@media(min-width:768px){
  .footer-grid{grid-template-columns:1.2fr 0.8fr 1fr;gap:48px}
}
.footer-logo{
  font-size:18px;font-weight:800;letter-spacing:1px;
  display:block;margin-bottom:14px;
}
.footer-logo .logo-accent{color:var(--color-accent)}
.footer-brand p{
  font-size:13px;color:rgba(239,234,224,0.55);
  line-height:1.8;
  max-width:300px;
}
.footer-title{
  display:block;font-size:14px;font-weight:700;
  letter-spacing:1px;
  margin-bottom:16px;
  padding-bottom:10px;
  border-bottom:1px solid rgba(255,255,255,0.08);
  position:relative;
}
.footer-title::after{
  content:'';position:absolute;bottom:-1px;left:0;
  width:32px;height:2px;background:var(--color-accent);
}
.footer-nav{display:flex;flex-direction:column;gap:8px}
.footer-nav a{font-size:14px;color:rgba(239,234,224,0.6);transition:color .2s ease}
.footer-nav a:hover{color:var(--color-accent)}
.footer-contact{display:flex;flex-direction:column;gap:8px}
.footer-contact p{font-size:14px;color:rgba(239,234,224,0.6)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.06);
  padding:20px 0;
  text-align:center;
}
.footer-bottom span{
  font-size:12px;color:rgba(239,234,224,0.4);
}

/* ============ 响应式补充 ============ */
@media(max-width:767px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 20px}
  .footer-brand{grid-column:1/-1}
}
@media(max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .footer-brand{grid-column:auto}
  .proof-stats{gap:12px}
  .stat-num{font-size:26px}
}

/* roulang page: category1 */
:root {
  --color-bg-dark: #14100C;
  --color-bg-body: #F5F1E8;
  --color-bg-card: #FFFDF8;
  --color-primary: #2B241C;
  --color-secondary: #4A5A3E;
  --color-accent: #E8873C;
  --color-border-dark: #2C291F;
  --color-border-light: #E5DFD3;
  --color-text-strong: #1D1A16;
  --color-text-muted: #6B6358;
  --color-text-on-dark: #EFEAE0;
  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-card: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-card-hover: 0 8px 24px rgba(0,0,0,0.12);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --header-height: 64px;
  --container-max: 1200px;
  --grid-line: repeating-linear-gradient(0deg, rgba(0,0,0,0.03) 0 1px, transparent 1px 40px), repeating-linear-gradient(90deg, rgba(0,0,0,0.03) 0 1px, transparent 1px 40px);
  --grid-line-dark: repeating-linear-gradient(0deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 40px), repeating-linear-gradient(90deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 40px);
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  background: var(--color-bg-body);
  color: var(--color-text-strong);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color .25s ease;
}
button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 32px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .5px;
  transition: all .25s ease;
  border: 1px solid transparent;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover {
  background: #d6782c;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(232,135,60,0.35);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.6);
  color: var(--color-text-on-dark);
}
.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}
.btn-dark {
  background: var(--color-primary);
  color: var(--color-text-on-dark);
}
.btn-dark:hover {
  background: #3a322a;
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}
.btn:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--color-bg-dark);
  border-bottom: 1px solid var(--color-border-dark);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
}
.nav-left,
.nav-right {
  display: flex;
  align-items: center;
  gap: 28px;
  flex: 1;
}
.nav-right {
  justify-content: flex-end;
}
.nav-left a,
.nav-right a {
  color: rgba(239,234,224,0.75);
  font-size: 15px;
  font-weight: 500;
  padding: 6px 2px;
  position: relative;
  white-space: nowrap;
}
.nav-left a::after,
.nav-right a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width .25s ease;
}
.nav-left a:hover,
.nav-right a:hover {
  color: var(--color-accent);
}
.nav-left a:hover::after,
.nav-right a:hover::after {
  width: 100%;
}
.nav-left a.active,
.nav-right a.active {
  color: var(--color-accent);
}
.nav-left a.active::after,
.nav-right a.active::after {
  width: 100%;
}
.site-logo {
  flex-shrink: 0;
  text-align: center;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .5px;
  color: var(--color-text-on-dark);
  white-space: nowrap;
  padding: 0 20px;
}
.logo-accent {
  color: var(--color-accent);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border-radius: var(--radius-sm);
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-on-dark);
  border-radius: 2px;
  margin: 0 auto;
  transition: transform .3s ease, opacity .3s ease;
}
.nav-toggle:hover span {
  background: var(--color-accent);
}

/* ===== Sub Hero ===== */
.sub-hero {
  position: relative;
  margin-top: var(--header-height);
  min-height: 180px;
  display: flex;
  align-items: center;
  background: var(--color-bg-dark) url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
  padding: 48px 0;
  overflow: hidden;
}
.sub-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(20,16,12,0.7);
}
.sub-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grid-line-dark);
  pointer-events: none;
}
.sub-hero__inner {
  position: relative;
  z-index: 1;
  width: 100%;
}
.breadcrumb {
  font-size: 13px;
  color: rgba(239,234,224,0.6);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.breadcrumb a {
  color: rgba(239,234,224,0.6);
}
.breadcrumb a:hover {
  color: var(--color-accent);
}
.breadcrumb .sep {
  color: rgba(239,234,224,0.35);
}
.breadcrumb .current {
  color: var(--color-accent);
}
.sub-hero h1 {
  font-size: 36px;
  font-weight: 900;
  color: var(--color-text-on-dark);
  line-height: 1.3;
  letter-spacing: 1px;
}
.sub-hero__desc {
  margin-top: 12px;
  max-width: 620px;
  font-size: 15px;
  color: rgba(239,234,224,0.8);
}
.corner-tag {
  position: absolute;
  top: 14px;
  left: 24px;
  font-family: monospace;
  font-size: 11px;
  letter-spacing: 2px;
  color: rgba(239,234,224,0.35);
  z-index: 2;
  pointer-events: none;
}

/* ===== Main Content ===== */
.content-wrap {
  display: grid;
  grid-template-columns: 65% 1fr;
  gap: 44px;
  padding-top: 56px;
  padding-bottom: 72px;
}
.content-main__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border-light);
}
.content-main__head h2 {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-text-strong);
}
.section-no {
  font-family: monospace;
  font-size: 14px;
  color: var(--color-accent);
  letter-spacing: 1px;
}

/* ===== Feature Card ===== */
.feature-card {
  display: grid;
  grid-template-columns: 240px 1fr;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 24px;
  transition: box-shadow .3s ease, border-color .3s ease;
}
.feature-card:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-accent);
}
.feature-card__thumb {
  position: relative;
  min-height: 200px;
}
.feature-card__thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.feature-card__body {
  padding: 26px 28px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}
.card-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  background: rgba(74,90,62,0.12);
  color: var(--color-secondary);
  border: 1px solid rgba(74,90,62,0.25);
  margin-bottom: 12px;
}
.card-badge.accent {
  background: rgba(232,135,60,0.14);
  color: var(--color-accent);
  border-color: rgba(232,135,60,0.4);
}
.feature-card__title {
  font-size: 20px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 10px;
}
.feature-card__title a:hover {
  color: var(--color-accent);
}
.feature-card__desc {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 14px;
}
.feature-card__meta {
  font-size: 12px;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 12px;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
}
.card-link:hover {
  gap: 10px;
}

/* ===== Mini Card ===== */
.mini-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 14px;
  transition: box-shadow .3s, border-color .3s, transform .25s;
}
.mini-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card);
  transform: translateX(4px);
}
.mini-card__thumb {
  width: 120px;
  height: 80px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
}
.mini-card__thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.mini-card__content {
  flex: 1;
  min-width: 0;
}
.mini-card__meta {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 4px;
  font-family: monospace;
}
.mini-card__title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
}
.mini-card__title a:hover {
  color: var(--color-accent);
}
.mini-card__arrow {
  color: var(--color-accent);
  font-size: 20px;
  flex-shrink: 0;
  opacity: 0.6;
  transition: opacity .25s;
}
.mini-card:hover .mini-card__arrow {
  opacity: 1;
}

/* ===== Pagination ===== */
.pagination {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 28px;
  flex-wrap: wrap;
}
.pagination a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 12px;
  border: 1px solid var(--color-border-light);
  background: var(--color-bg-card);
  color: var(--color-text-strong);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  transition: all .25s ease;
}
.pagination a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.pagination a.is-current {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
  font-weight: 700;
}
.pagination .pagination__next,
.pagination .pagination__prev {
  font-size: 13px;
}

/* ===== Sidebar ===== */
.content-side {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.side-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 24px;
}
.side-card__title {
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  gap: 8px;
}
.side-card__title::before {
  content: '';
  width: 4px;
  height: 16px;
  background: var(--color-accent);
  border-radius: 2px;
}
.side-cta {
  background: var(--color-primary);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
  color: var(--color-text-on-dark);
}
.side-cta::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grid-line-dark);
  pointer-events: none;
}
.side-cta__inner {
  position: relative;
  z-index: 1;
}
.side-cta h3 {
  font-size: 19px;
  font-weight: 800;
  margin-bottom: 8px;
}
.side-cta p {
  font-size: 14px;
  color: rgba(239,234,224,0.75);
  margin-bottom: 18px;
  line-height: 1.7;
}
.side-cta .btn {
  width: 100%;
}
.side-cta .btn + .btn {
  margin-top: 10px;
}
.tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  display: inline-block;
  font-size: 13px;
  padding: 5px 14px;
  border: 1px solid var(--color-border-light);
  border-radius: 20px;
  background: var(--color-bg-body);
  color: var(--color-text-strong);
  transition: all .25s ease;
}
.tag:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}
.latest-list {
  list-style: none;
}
.latest-list li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-border-light);
}
.latest-list li:last-child {
  border-bottom: none;
}
.latest-list a {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  display: block;
}
.latest-list a:hover {
  color: var(--color-accent);
}
.latest-list .latest-date {
  font-size: 12px;
  color: var(--color-text-muted);
  font-family: monospace;
  margin-top: 2px;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 72px 0;
  background: var(--color-bg-body);
  border-top: 1px solid var(--color-border-light);
}
.faq-head {
  margin-bottom: 36px;
}
.faq-head .section-no {
  margin-bottom: 8px;
}
.faq-head h2 {
  font-size: 30px;
  font-weight: 900;
  color: var(--color-text-strong);
}
.faq-list {
  max-width: 840px;
}
.faq-item {
  border-bottom: 1px solid var(--color-border-light);
}
.faq-item.is-open .faq-question::after {
  transform: rotate(45deg);
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 20px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-strong);
  cursor: pointer;
  transition: color .25s ease;
  width: 100%;
  text-align: left;
  background: none;
}
.faq-question:hover {
  color: var(--color-accent);
}
.faq-question::after {
  content: '+';
  font-size: 24px;
  font-weight: 300;
  color: var(--color-accent);
  transition: transform .3s ease;
  flex-shrink: 0;
  line-height: 1;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}
.faq-answer__inner {
  padding: 0 0 20px;
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.75;
  max-width: 96%;
}

/* ===== CTA Section ===== */
.cta-section {
  padding: 72px 0;
  background: var(--color-bg-dark);
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grid-line-dark);
  pointer-events: none;
}
.cta-box {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-box h2 {
  font-size: 28px;
  font-weight: 900;
  color: var(--color-text-on-dark);
  line-height: 1.3;
  margin-bottom: 8px;
}
.cta-box p {
  color: rgba(239,234,224,0.7);
  font-size: 15px;
}
.cta-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-bg-dark);
  border-top: 1px solid var(--color-border-dark);
  padding-top: 56px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-text-on-dark);
  display: inline-block;
  margin-bottom: 14px;
}
.footer-brand p {
  font-size: 14px;
  color: rgba(239,234,224,0.65);
  line-height: 1.7;
  max-width: 320px;
}
.footer-title {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text-on-dark);
  margin-bottom: 16px;
  padding-bottom: 8px;
  position: relative;
}
.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background: var(--color-accent);
}
.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-nav a {
  font-size: 14px;
  color: rgba(239,234,224,0.65);
}
.footer-nav a:hover {
  color: var(--color-accent);
}
.footer-contact p {
  font-size: 14px;
  color: rgba(239,234,224,0.65);
  line-height: 1.8;
}
.footer-bottom {
  border-top: 1px solid var(--color-border-dark);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom span {
  font-size: 13px;
  color: rgba(239,234,224,0.45);
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .nav-left,
  .nav-right {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--color-bg-dark);
    border-top: 1px solid var(--color-border-dark);
    padding: 8px 24px 12px;
    box-shadow: 0 12px 24px rgba(0,0,0,0.4);
  }
  .nav-right {
    top: auto;
    box-shadow: none;
  }
  .header-inner.open .nav-left,
  .header-inner.open .nav-right {
    display: flex;
  }
  .nav-left a,
  .nav-right a {
    display: block;
    width: 100%;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    font-size: 16px;
  }
  .nav-left a:last-child,
  .nav-right a:last-child {
    border-bottom: none;
  }
  .nav-toggle {
    display: flex;
  }
  .header-inner {
    position: relative;
  }
  .site-logo {
    margin-left: auto;
    margin-right: auto;
    font-size: 18px;
    padding: 0 12px;
  }
  .content-wrap {
    grid-template-columns: 1fr;
    gap: 36px;
    padding-top: 40px;
    padding-bottom: 56px;
  }
  .content-side {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: start;
  }
  .side-cta {
    grid-column: 1 / -1;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 767px) {
  .container {
    padding: 0 16px;
  }
  .sub-hero {
    min-height: 160px;
    padding: 36px 0;
  }
  .sub-hero h1 {
    font-size: 26px;
  }
  .sub-hero__desc {
    font-size: 14px;
  }
  .content-main__head h2 {
    font-size: 19px;
  }
  .feature-card {
    grid-template-columns: 1fr;
  }
  .feature-card__thumb {
    min-height: 160px;
  }
  .feature-card__thumb img {
    position: static;
    height: 160px;
  }
  .feature-card__body {
    padding: 20px;
  }
  .feature-card__title {
    font-size: 18px;
  }
  .mini-card {
    flex-direction: row;
    padding: 12px;
  }
  .mini-card__thumb {
    width: 88px;
    height: 64px;
  }
  .mini-card__title {
    font-size: 14px;
  }
  .mini-card__desc {
    display: none;
  }
  .pagination {
    gap: 6px;
  }
  .pagination a {
    min-width: 32px;
    height: 32px;
    font-size: 13px;
    padding: 0 8px;
  }
  .content-side {
    grid-template-columns: 1fr;
  }
  .faq-section {
    padding: 48px 0;
  }
  .faq-head h2 {
    font-size: 24px;
  }
  .cta-section {
    padding: 48px 0;
  }
  .cta-box h2 {
    font-size: 22px;
  }
  .cta-actions {
    width: 100%;
  }
  .cta-actions .btn {
    flex: 1;
    min-width: 140px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 24px;
  }
  .site-footer {
    padding-top: 40px;
  }
}
@media (max-width: 520px) {
  .site-logo {
    font-size: 16px;
  }
  .sub-hero h1 {
    font-size: 22px;
  }
  .btn {
    height: 42px;
    padding: 0 24px;
    font-size: 14px;
  }
}