/* roulang page: index */
:root{
  --primary:#0C1F1A;
  --primary-dark:#06120E;
  --accent:#2E7D5B;
  --accent-light:rgba(46,125,91,0.12);
  --gold:#C8A86E;
  --gold-light:rgba(200,168,110,0.2);
  --bg:#F7F4EF;
  --card-bg:#FFFFFF;
  --text:#10231E;
  --text-body:#2B3A34;
  --text-muted:#6B766F;
  --border:rgba(12,31,26,0.08);
  --border-dark:rgba(255,255,255,0.12);
  --shadow-sm:0 4px 20px rgba(12,31,26,0.05);
  --shadow-lg:0 12px 32px rgba(12,31,26,0.10);
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:8px;
  --radius-pill:999px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  font-family:var(--font-sans);
  font-size:16px;line-height:1.75;letter-spacing:0.01em;
  color:var(--text-body);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .25s ease;}
ul,ol{list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;border:none;outline:none;background:none;}
.grid-container{max-width:1200px;}

h1,h2,h3,h4,h5{
  font-family:var(--font-serif);
  color:var(--text);letter-spacing:.02em;font-weight:700;line-height:1.3;
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 28px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:.04em;
  cursor:pointer;transition:all .25s ease;white-space:nowrap;
}
.btn--primary{
  background:var(--primary);color:#fff;box-shadow:0 4px 16px rgba(12,31,26,0.20);
}
.btn--primary:hover{background:var(--accent);transform:translateY(-1px);box-shadow:0 6px 24px rgba(46,125,91,0.28);color:#fff;}
.btn--primary:active{transform:translateY(1px);}
.btn--primary:focus-visible{outline:3px solid var(--gold);outline-offset:2px;}
.btn--ghost{
  background:rgba(255,255,255,0.10);color:#fff;
  border:1px solid rgba(255,255,255,0.45);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.btn--ghost:hover{background:rgba(255,255,255,0.18);color:#fff;border-color:rgba(255,255,255,0.7);}
.btn--outline{
  background:transparent;color:var(--primary);
  border:1px solid rgba(12,31,26,0.25);
}
.btn--outline:hover{background:rgba(12,31,26,0.05);border-color:var(--accent);color:var(--accent);}
.btn--sm{height:40px;padding:0 22px;font-size:14px;}
.btn--block{width:100%;}
.btn--gold{
  background:var(--gold);color:var(--primary-dark);
}
.btn--gold:hover{background:#B8935A;color:var(--primary-dark);transform:translateY(-1px);}

/* ===== 徽章 ===== */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--radius-pill);font-size:12px;font-weight:500;letter-spacing:.02em;
}
.badge--light{background:var(--accent-light);color:var(--accent);}
.badge--gold{background:var(--gold-light);color:var(--gold);}

/* ===== 通用容器 / 板块间距 ===== */
.section{padding:96px 0;}
.section--bg{background:var(--bg);}
.section--white{background:#fff;}
.section-head{max-width:720px;margin-bottom:56px;}
.section-head .badge{margin-bottom:16px;}
.section-head h2{font-size:30px;margin-bottom:12px;color:var(--text);}
.section-head p{font-size:16px;color:var(--text-muted);line-height:1.7;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.text-gold{color:var(--gold);}
.text-accent{color:var(--accent);}

/* ===== 顶部导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;height:72px;
  background:rgba(12,31,26,0.32);backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--border-dark);
  transition:background .35s ease,border-color .35s ease,box-shadow .35s ease;
}
.site-header.scrolled{
  background:rgba(255,255,255,0.94);backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  border-bottom:1px solid transparent;
  box-shadow:0 4px 24px rgba(12,31,26,0.08);
}
.site-header__inner{
  display:flex;align-items:center;justify-content:space-between;height:72px;gap:32px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand__icon{width:42px;height:42px;flex-shrink:0;}
.brand__text{display:flex;flex-direction:column;line-height:1.1;}
.brand__text strong{
  font-family:var(--font-serif);font-size:22px;font-weight:700;color:#fff;
  letter-spacing:.04em;transition:color .35s ease;
}
.brand__text small{
  font-size:11px;color:rgba(255,255,255,0.7);letter-spacing:.14em;
  transition:color .35s ease;
}
.site-header.scrolled .brand__text strong{color:var(--primary);}
.site-header.scrolled .brand__text small{color:var(--text-muted);}
.site-nav{display:flex;align-items:center;}
.site-nav ul{display:flex;align-items:center;gap:36px;margin:0;padding:0;list-style:none;}
.site-nav ul li a{
  position:relative;display:block;padding:8px 0;
  font-size:15px;font-weight:500;color:rgba(255,255,255,0.85);letter-spacing:.02em;
  transition:color .25s ease;
}
.site-nav ul li a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--gold);border-radius:2px;transition:width .25s ease;
}
.site-nav ul li a:hover{color:#fff;}
.site-nav ul li a:hover::after{width:100%;}
.site-nav ul li a.active{color:#fff;}
.site-nav ul li a.active::after{width:100%;background:var(--gold);}
.site-header.scrolled .site-nav ul li a{color:var(--text-body);}
.site-header.scrolled .site-nav ul li a:hover{color:var(--accent);}
.site-header.scrolled .site-nav ul li a.active{color:var(--primary);}
.header-actions{display:flex;align-items:center;gap:16px;}
.search-toggle{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;color:#fff;transition:background .25s ease;
}
.search-toggle:hover{background:rgba(255,255,255,0.15);}
.site-header.scrolled .search-toggle{color:var(--primary);}
.site-header.scrolled .search-toggle:hover{background:rgba(12,31,26,0.06);}
.search-box{
  position:absolute;top:72px;right:0;left:0;display:none;
  background:rgba(255,255,255,0.97);box-shadow:0 8px 32px rgba(12,31,26,0.15);
  padding:20px 0;border-bottom:1px solid var(--border);z-index:999;
}
.search-box.open{display:block;}
.search-box form{display:flex;gap:12px;max-width:720px;margin:0 auto;}
.search-box input{
  flex:1;height:48px;border:1px solid #D8D2C8;border-radius:var(--radius-sm);
  padding:0 18px;font-size:15px;background:#fff;color:var(--text);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.search-box input:focus{
  border-color:var(--accent);box-shadow:0 0 0 3px rgba(46,125,91,0.15);
}
.nav-toggle{
  display:none;flex-direction:column;gap:5px;width:44px;height:44px;
  align-items:center;justify-content:center;border-radius:8px;
}
.nav-toggle span{display:block;width:22px;height:2px;background:#fff;border-radius:2px;transition:all .3s ease;}
.site-header.scrolled .nav-toggle span{background:var(--primary);}
.nav-toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-active span:nth-child(2){opacity:0;}
.nav-toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 移动端菜单 */
.mobile-menu{
  position:fixed;top:72px;left:0;right:0;z-index:998;
  background:rgba(12,31,26,0.92);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  padding:32px 24px 48px;transform:translateY(-120%);transition:transform .4s ease;
  border-bottom:1px solid var(--border-dark);
}
.mobile-menu.is-open{transform:translateY(0);}
.mobile-menu nav ul li a{
  display:block;font-size:20px;line-height:56px;color:rgba(255,255,255,0.9);
  font-family:var(--font-serif);border-bottom:1px solid rgba(255,255,255,0.08);
}
.mobile-menu nav ul li a:hover,.mobile-menu nav ul li a.active{color:var(--gold);}
.mobile-menu .btn{margin-top:24px;}

/* ===== Hero ===== */
.hero{
  position:relative;min-height:85vh;display:flex;align-items:center;
  background:linear-gradient(155deg,rgba(6,18,14,0.68) 0%,rgba(6,18,14,0.35) 55%,rgba(6,18,14,0.30) 100%);
}
.hero__bg{
  position:absolute;inset:0;z-index:-1;object-fit:cover;width:100%;height:100%;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:160px;
  background:linear-gradient(to top,rgba(6,18,14,0.55),transparent);pointer-events:none;
}
.hero__content{position:relative;z-index:2;padding:140px 0 120px;max-width:820px;}
.hero .badge{margin-bottom:24px;}
.hero-title{
  font-size:56px;line-height:1.22;color:#fff;letter-spacing:.03em;
  margin-bottom:24px;
  opacity:0;transform:translateY(36px);
  animation:heroIn .8s ease-out .15s forwards;
}
.hero-sub{
  font-size:18px;line-height:1.7;color:rgba(255,255,255,0.88);max-width:600px;
  margin-bottom:40px;
  opacity:0;transform:translateY(36px);
  animation:heroIn .8s ease-out .3s forwards;
}
.hero-cta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.hero-cta .btn{min-width:140px;}
@keyframes heroIn{
  to{opacity:1;transform:translateY(0);}
}

/* ===== 数据条 ===== */
.stats-band{background:var(--primary-dark);padding:44px 0;position:relative;z-index:3;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;}
.stat-item{text-align:center;position:relative;}
.stat-item:not(:last-child)::after{
  content:"";position:absolute;right:-16px;top:50%;transform:translateY(-50%);
  width:1px;height:40px;background:rgba(255,255,255,0.10);
}
.stat-number{
  font-family:var(--font-serif);font-size:34px;font-weight:700;color:var(--gold);
  margin-bottom:4px;line-height:1.2;
}
.stat-label{font-size:14px;color:rgba(255,255,255,0.60);letter-spacing:.06em;}

/* ===== 价值主张 ===== */
.value-wrap{display:flex;align-items:center;gap:56px;}
.value-text{flex:1;}
.value-text h2{font-size:30px;margin-bottom:20px;}
.value-text p{color:var(--text-body);margin-bottom:16px;font-size:16px;}
.value-text .btn{margin-top:12px;}
.value-image{flex:1;position:relative;padding-right:24px;padding-bottom:24px;}
.value-image img{
  border-radius:var(--radius-lg);object-fit:cover;width:100%;aspect-ratio:4/3;position:relative;z-index:2;box-shadow:var(--shadow-lg);
}
.value-image::after{
  content:"";position:absolute;right:0;bottom:0;width:72%;height:72%;
  background:var(--gold);border-radius:var(--radius-lg);z-index:1;
}

/* ===== 功能分组 ===== */
.feature-grid .grid-x{gap:24px;}
.feature-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:32px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  height:100%;display:flex;flex-direction:column;
}
.feature-card:hover{
  transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(46,125,91,0.30);
}
.feature-card__icon{
  width:52px;height:52px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;
  background:var(--accent-light);margin-bottom:20px;color:var(--accent);
}
.feature-card h3{font-size:20px;margin-bottom:10px;}
.feature-card p{font-size:14px;color:var(--text-muted);line-height:1.65;margin-bottom:20px;flex-grow:1;}
.feature-card__link{font-size:14px;color:var(--accent);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.feature-card__link:hover{gap:10px;}
.feature-card--dark{
  background:var(--primary);border:none;color:rgba(255,255,255,0.75);
}
.feature-card--dark h3{color:#fff;}
.feature-card--dark .feature-card__icon{background:rgba(255,255,255,0.12);color:var(--gold);}
.feature-card--dark p{color:rgba(255,255,255,0.65);}
.feature-card--dark .feature-card__link{color:var(--gold);}
.feature-card--gold{
  background:rgba(200,168,110,0.10);border-color:rgba(200,168,110,0.25);
}
.feature-row{margin-bottom:24px;}
.feature-row:last-child{margin-bottom:0;}

/* ===== 场景 ===== */
.scenario-row{display:flex;align-items:center;gap:56px;margin-bottom:88px;}
.scenario-row:last-child{margin-bottom:0;}
.scenario-row:nth-child(even){flex-direction:row-reverse;}
.scenario-text{flex:1;}
.scenario-text .badge{margin-bottom:16px;}
.scenario-text h3{font-size:28px;margin-bottom:14px;}
.scenario-text>p{color:var(--text-muted);margin-bottom:20px;font-size:16px;}
.scenario-list li{
  position:relative;padding-left:22px;margin-bottom:10px;font-size:15px;
  color:var(--text-body);
}
.scenario-list li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;
  background:var(--gold);border-radius:50%;
}
.scenario-media{flex:1;position:relative;}
.scenario-media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);
}
.scenario-tag{
  position:absolute;left:20px;bottom:20px;z-index:2;
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  background:rgba(6,18,14,0.72);color:var(--gold);font-size:13px;font-weight:600;
  border-radius:var(--radius-pill);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  letter-spacing:.04em;
}

/* ===== 成功案例时间轴 ===== */
.case-wrap{display:flex;gap:48px;}
.case-timeline{flex:0 0 160px;position:relative;}
.case-timeline::before{
  content:"";position:absolute;left:11px;top:10px;bottom:10px;width:2px;
  background:rgba(200,168,110,0.35);
}
.case-timeline .timeline-dot{
  position:absolute;left:4px;width:16px;height:16px;border-radius:50%;
  background:var(--gold);border:3px solid var(--bg);box-shadow:0 0 0 2px var(--gold);
}
.case-timeline .timeline-dot:nth-child(1){top:8px;}
.case-timeline .timeline-dot:nth-child(2){top:50%;transform:translateY(-50%);}
.case-timeline .timeline-dot:nth-child(3){bottom:8px;}
.case-items{flex:1;display:flex;flex-direction:column;gap:28px;}
.case-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:28px 32px;display:flex;align-items:center;gap:28px;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease;
  background:rgba(255,255,255,0.92);
}
.case-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);background:#fff;}
.case-season{
  flex:0 0 130px;font-family:var(--font-serif);font-size:16px;font-weight:700;
  color:var(--primary);border-right:2px solid rgba(200,168,110,0.25);
  padding-right:24px;line-height:1.4;
}
.case-metric{
  flex:0 0 110px;text-align:center;
  font-family:var(--font-serif);font-size:36px;font-weight:700;color:var(--gold);
  line-height:1.1;
}
.case-metric small{display:block;font-family:var(--font-sans);font-size:12px;color:var(--text-muted);font-weight:400;margin-top:4px;}
.case-desc{flex:1;font-size:14px;color:var(--text-muted);line-height:1.65;}
.case-desc strong{color:var(--text);font-weight:600;}

/* ===== 价格区 ===== */
.pricing-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;max-width:960px;margin:0 auto;}
.pricing-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:40px;position:relative;transition:transform .25s ease,box-shadow .25s ease;
  display:flex;flex-direction:column;
}
.pricing-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);}
.pricing-card--featured{
  border:2px solid var(--gold);box-shadow:0 8px 32px rgba(200,168,110,0.18);
}
.pricing-card__flag{
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  background:var(--gold);color:var(--primary-dark);font-size:12px;font-weight:700;
  padding:4px 18px;border-radius:var(--radius-pill);letter-spacing:.06em;white-space:nowrap;
}
.pricing-card__name{
  font-family:var(--font-serif);font-size:24px;color:var(--text);margin-bottom:6px;
}
.pricing-card__price{
  font-family:var(--font-serif);font-size:42px;font-weight:700;color:var(--primary);
  margin:12px 0 4px;line-height:1.1;
}
.pricing-card__price small{font-size:15px;font-weight:400;color:var(--text-muted);}
.pricing-card__desc{font-size:14px;color:var(--text-muted);margin-bottom:24px;}
.pricing-card ul{margin-bottom:28px;}
.pricing-card ul li{
  position:relative;padding-left:26px;font-size:15px;color:var(--text-body);margin-bottom:12px;
}
.pricing-card ul li::before{
  content:"✓";position:absolute;left:0;top:0;color:var(--accent);font-weight:700;
}
.pricing-card .btn{margin-top:auto;}
.pricing-note{
  text-align:center;font-size:14px;color:var(--text-muted);margin-top:32px;max-width:720px;margin-left:auto;margin-right:auto;
}

/* ===== 最新资讯 ===== */
.news-layout{display:grid;grid-template-columns:1.1fr 1fr;gap:32px;align-items:start;}
.news-featured{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;transition:transform .25s ease,box-shadow .25s ease;
}
.news-featured:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.news-featured__img{position:relative;overflow:hidden;}
.news-featured__img img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease;}
.news-featured:hover .news-featured__img img{transform:scale(1.04);}
.news-featured__img .badge{position:absolute;top:16px;left:16px;}
.news-featured__body{padding:24px 28px 28px;}
.news-featured__body h3{
  font-size:20px;margin-bottom:10px;line-height:1.45;
}
.news-featured__body h3 a:hover{color:var(--gold);}
.news-featured__body p{
  font-size:14px;color:var(--text-muted);line-height:1.7;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:16px;font-size:13px;color:var(--text-muted);}
.news-meta__more{color:var(--accent);font-weight:600;margin-left:auto;transition:margin-left .3s ease;}
.news-featured:hover .news-meta__more{margin-left:12px;}
.news-list{display:flex;flex-direction:column;gap:0;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:8px 24px;}
.news-list__item{padding:20px 0;border-bottom:1px solid var(--border);}
.news-list__item:last-child{border-bottom:none;}
.news-list__item h3{font-size:17px;margin-bottom:8px;line-height:1.4;font-family:var(--font-sans);font-weight:600;}
.news-list__item h3 a:hover{color:var(--gold);}
.news-list__item p{
  font-size:14px;color:var(--text-muted);line-height:1.6;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.news-list__head{display:flex;align-items:center;gap:12px;margin-bottom:8px;}
.news-list__time{font-size:13px;color:var(--text-muted);}
.news-list__more{font-size:13px;color:var(--accent);font-weight:600;transition:margin-left .3s ease;}
.news-list__item:hover .news-list__more{margin-left:6px;}
.news-empty{
  border:2px dashed rgba(12,31,26,0.20);border-radius:var(--radius-lg);
  padding:48px 24px;text-align:center;color:var(--text-muted);
  grid-column:1/-1;
}
.news-empty svg{display:block;margin:0 auto 16px;color:rgba(12,31,26,0.20);}

/* ===== FAQ ===== */
.faq-wrap{max-width:800px;margin:0 auto;}
.faq-item{
  background:#FAFAF7;border:1px solid var(--border);border-radius:var(--radius-md);
  margin-bottom:14px;overflow:hidden;
}
.faq-item__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);
  cursor:pointer;text-align:left;background:transparent;transition:color .25s ease;
}
.faq-item__q:hover{color:var(--accent);}
.faq-item__icon{
  position:relative;width:20px;height:20px;flex-shrink:0;margin-left:16px;
}
.faq-item__icon::before,.faq-item__icon::after{
  content:"";position:absolute;background:var(--gold);transition:transform .3s ease;
}
.faq-item__icon::before{top:9px;left:0;width:20px;height:2px;}
.faq-item__icon::after{top:0;left:9px;width:2px;height:20px;}
.faq-item.is-open .faq-item__icon::after{transform:rotate(90deg);}
.faq-item__a{
  max-height:0;overflow:hidden;transition:max-height .35s ease;
}
.faq-item__a-inner{
  padding:0 24px 22px;font-size:15px;color:var(--text-muted);line-height:1.75;
}

/* ===== CTA横幅 ===== */
.cta-banner{
  position:relative;background:var(--primary-dark);overflow:hidden;
  padding:80px 0;text-align:center;
}
.cta-banner::before{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(200,168,110,0.20);top:50%;left:50%;
  transform:translate(-50%,-50%);
}
.cta-banner::after{
  content:"";position:absolute;width:560px;height:560px;border-radius:50%;
  border:1px solid rgba(200,168,110,0.10);top:50%;left:50%;
  transform:translate(-50%,-50%);
}
.cta-banner__inner{position:relative;z-index:2;}
.cta-banner h2{
  font-size:32px;color:#fff;margin-bottom:16px;
}
.cta-banner p{
  color:rgba(255,255,255,0.70);font-size:16px;max-width:560px;margin:0 auto 36px;
}
.cta-banner .cta-group{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}

/* ===== 页脚 ===== */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,0.65);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:48px;padding-bottom:56px;}
.footer-brand .brand__text strong{color:#fff;font-size:20px;}
.footer-brand .brand__text small{color:rgba(255,255,255,0.65);}
.footer-brand p{font-size:14px;line-height:1.7;margin-top:16px;color:rgba(255,255,255,0.55);max-width:280px;}
.footer-col h4{
  font-family:var(--font-sans);font-size:15px;font-weight:600;color:#fff;
  margin-bottom:20px;letter-spacing:.06em;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,0.60);transition:color .25s ease,padding-left .25s ease;}
.footer-col ul li a:hover{color:var(--gold);padding-left:6px;}
.footer-contact li{
  font-size:14px;color:rgba(255,255,255,0.60);margin-bottom:12px;
  display:flex;align-items:center;gap:10px;
}
.footer-contact svg{flex-shrink:0;color:var(--gold);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.08);padding:20px 0;
  font-size:13px;color:rgba(255,255,255,0.40);text-align:center;
}

/* ===== 滚动渐入 ===== */
.reveal{
  opacity:0;transform:translateY(24px);
  transition:opacity .6s ease-out,transform .6s ease-out;
}
.reveal.is-visible{opacity:1;transform:translateY(0);}

/* ===== 响应式 ===== */
@media screen and (max-width:1023px){
  .section{padding:72px 0;}
  .site-nav{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .btn--sm{display:none;}
  .value-wrap{gap:32px;}
  .scenario-row,.scenario-row:nth-child(even){flex-direction:column;gap:32px;}
  .case-wrap{flex-direction:column;gap:24px;}
  .case-timeline{display:none;}
  .case-items{gap:20px;}
  .case-item{flex-direction:column;align-items:flex-start;padding:24px;}
  .case-season{border-right:none;border-bottom:2px solid rgba(200,168,110,0.25);padding-right:0;padding-bottom:8px;flex:none;width:100%;}
  .case-metric{flex:none;font-size:30px;text-align:left;}
  .news-layout{grid-template-columns:1fr;}
  .pricing-grid{grid-template-columns:1fr;max-width:520px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
}
@media screen and (max-width:639px){
  .section{padding:56px 0;}
  .hero-title{font-size:36px;}
  .hero-sub{font-size:16px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px;}
  .stat-item:nth-child(2)::after{display:none;}
  .stat-item:nth-child(n+3){margin-top:8px;}
  .stat-number{font-size:28px;}
  .section-head h2{font-size:24px;}
  .value-wrap{flex-direction:column;}
  .value-image{padding-right:16px;padding-bottom:16px;}
  .scenario-text h3{font-size:22px;}
  .feature-card{padding:24px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .cta-banner h2{font-size:24px;}
  .case-metric{font-size:26px;}
  .hero-cta .btn{width:100%;}
  .search-box input{font-size:14px;}
  .pricing-card{padding:28px;}
  .pricing-card__price{font-size:34px;}
  .faq-item__q{font-size:15px;padding:16px 18px;}
  .faq-item__a-inner{padding:0 18px 18px;font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: article */
:root {
  --primary: #0C1F1A;
  --accent: #2E7D5B;
  --gold: #C8A86E;
  --bg: #F7F4EF;
  --card: #FFFFFF;
  --dark: #06120E;
  --text: #10231E;
  --body: #2B3A34;
  --muted: #6B766F;
  --border: rgba(12, 31, 26, 0.08);
  --border-dark: rgba(255, 255, 255, 0.12);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 4px 20px rgba(12, 31, 26, 0.05);
  --shadow-hover: 0 12px 32px rgba(12, 31, 26, 0.1);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --transition: 0.25s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
ul, ol { list-style: none; }
input, button, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }
:focus-visible { outline: 3px solid rgba(200, 168, 110, 0.7); outline-offset: 2px; border-radius: 4px; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
section { position: relative; }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.btn--primary { background: var(--primary); color: #fff; }
.btn--primary:hover { background: var(--accent); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(46, 125, 91, 0.28); }
.btn--primary:active { transform: translateY(1px); }
.btn--secondary { background: transparent; color: var(--primary); border: 1px solid rgba(12, 31, 26, 0.25); }
.btn--secondary:hover { background: rgba(12, 31, 26, 0.05); border-color: rgba(12, 31, 26, 0.4); transform: translateY(-1px); }
.btn--ghost { background: transparent; color: #fff; border: 1px solid rgba(255, 255, 255, 0.5); }
.btn--ghost:hover { background: rgba(255, 255, 255, 0.08); border-color: rgba(255, 255, 255, 0.8); transform: translateY(-1px); }
.btn--sm { height: 40px; padding: 0 20px; font-size: 14px; }
.btn--lg { height: 52px; padding: 0 36px; font-size: 16px; }

/* 徽章 */
.badge {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  white-space: nowrap;
}
.badge--green { background: rgba(46, 125, 91, 0.12); color: var(--accent); }
.badge--gold { background: rgba(200, 168, 110, 0.2); color: #9c7f4e; }

/* 导航 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: auto;
  min-height: 72px;
  background: rgba(12, 31, 26, 0.32);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 4px 24px rgba(12, 31, 26, 0.08);
  border-color: rgba(12, 31, 26, 0.06);
}
.site-header__inner { display: flex; min-height: 72px; }
.site-header__inner { display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand__icon { width: 40px; height: 40px; flex-shrink: 0; }
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__text strong { font-family: var(--font-serif); font-size: 20px; font-weight: 700; letter-spacing: 0.06em; color: #fff; transition: color 0.3s ease; }
.brand__text small { font-size: 11px; font-weight: 400; letter-spacing: 0.14em; color: rgba(255, 255, 255, 0.72); transition: color 0.3s ease; }
.site-header.scrolled .brand__text strong { color: var(--primary); }
.site-header.scrolled .brand__text small { color: var(--muted); }
.site-nav ul { display: flex; align-items: center; gap: 36px; }
.site-nav ul li a {
  position: relative;
  display: inline-block;
  padding: 8px 0;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: rgba(255, 255, 255, 0.88);
  transition: color 0.25s ease;
}
.site-nav ul li a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  border-radius: 2px;
  background: var(--gold);
  transition: width 0.2s ease;
}
.site-nav ul li a:hover::after { width: 100%; }
.site-nav ul li a.active { color: var(--gold); }
.site-nav ul li a.active::after { width: 100%; background: var(--gold); }
.site-header.scrolled .site-nav ul li a { color: var(--primary); }
.site-header.scrolled .site-nav ul li a:hover { color: var(--accent); }
.site-header.scrolled .site-nav ul li a.active { color: var(--gold); }
.header-actions { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.search-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  color: #fff;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.search-toggle:hover { background: rgba(255, 255, 255, 0.1); transform: scale(1.05); }
.site-header.scrolled .search-toggle { color: var(--primary); }
.site-header.scrolled .search-toggle:hover { background: rgba(12, 31, 26, 0.05); }
.nav-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 40px; height: 40px; padding: 8px; border-radius: 8px; }
.nav-toggle span { display: block; height: 2px; width: 22px; background: #fff; border-radius: 2px; transition: transform 0.25s ease, opacity 0.25s ease, background 0.3s ease; }
.site-header.scrolled .nav-toggle span { background: var(--primary); }
.nav-toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }
.nav-toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.search-box {
  max-height: 0;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid rgba(12, 31, 26, 0.08);
  transition: max-height 0.3s ease;
}
.search-box.is-open { max-height: 88px; }
.search-box form { display: flex; gap: 10px; padding: 14px 0; }
.search-box input[type="search"] {
  flex: 1;
  height: 46px;
  padding: 0 16px;
  border: 1px solid #D8D2C8;
  border-radius: 8px;
  background: #fff;
  font-size: 15px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.search-box input[type="search"]:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(46, 125, 91, 0.15); }
.search-box .btn { height: 46px; }

/* 文章横幅 */
.article-hero {
  position: relative;
  min-height: 280px;
  padding: 130px 0 56px;
  display: flex;
  align-items: center;
  background: linear-gradient(180deg, rgba(6, 18, 14, 0.82) 0%, rgba(6, 18, 14, 0.58) 55%, rgba(6, 18, 14, 0.42) 100%),
    url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
  color: #fff;
}
.article-hero__inner { max-width: 860px; margin: 0 auto; text-align: center; }
.breadcrumb { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 6px; margin-bottom: 18px; font-size: 14px; color: rgba(255, 255, 255, 0.72); }
.breadcrumb a { color: rgba(255, 255, 255, 0.72); transition: color 0.2s ease; }
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb .breadcrumb__current { color: rgba(255, 255, 255, 0.92); max-width: 300px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.breadcrumb__sep { color: rgba(255, 255, 255, 0.45); }
.article-hero .badge { margin-bottom: 14px; }
.article-hero__title {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.02em;
  color: #fff;
  max-width: 760px;
  margin: 0 auto;
  text-shadow: 0 2px 16px rgba(6, 18, 14, 0.4);
}

/* 文章正文区 */
.article-section { padding: 64px 0 40px; }
.article-wrap { max-width: 860px; margin: 0 auto; padding: 0 24px; }
.article-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 48px 56px;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding-bottom: 28px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--border);
}
.article-meta time { font-size: 14px; color: var(--muted); }
.article-meta .article-meta__source { font-size: 14px; color: var(--muted); display: inline-flex; align-items: center; gap: 6px; }
.article-meta .article-meta__source::before { content: ''; width: 4px; height: 4px; border-radius: 50%; background: var(--gold); }

.article-entry {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--body);
}
.article-entry p { margin: 0 0 24px; }
.article-entry h2 {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 700;
  color: var(--text);
  margin: 44px 0 18px;
  padding-left: 18px;
  position: relative;
  line-height: 1.4;
}
.article-entry h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.3em;
  bottom: 0.3em;
  width: 4px;
  border-radius: 999px;
  background: var(--gold);
}
.article-entry h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  margin: 34px 0 16px;
  line-height: 1.4;
  padding-left: 16px;
  position: relative;
}
.article-entry h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.35em;
  bottom: 0.35em;
  width: 3px;
  border-radius: 999px;
  background: rgba(200, 168, 110, 0.7);
}
.article-entry h4 { font-size: 19px; font-weight: 700; color: var(--text); margin: 28px 0 14px; }
.article-entry img { width: 100%; height: auto; border-radius: 12px; margin: 24px 0; box-shadow: var(--shadow-card); }
.article-entry a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; transition: color 0.2s ease; }
.article-entry a:hover { color: var(--primary); text-decoration-color: var(--gold); }
.article-entry ul, .article-entry ol { margin: 16px 0 24px; padding-left: 4px; }
.article-entry ul li { position: relative; padding-left: 20px; margin-bottom: 8px; }
.article-entry ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
}
.article-entry ol { counter-reset: article-ol; }
.article-entry ol li { position: relative; padding-left: 28px; counter-increment: article-ol; margin-bottom: 8px; }
.article-entry ol li::before {
  content: counter(article-ol) ".";
  position: absolute;
  left: 0;
  top: 0;
  font-weight: 700;
  color: var(--gold);
  font-family: var(--font-serif);
}
.article-entry blockquote {
  border-left: 3px solid var(--gold);
  background: var(--bg);
  padding: 18px 24px;
  margin: 28px 0;
  border-radius: 0 12px 12px 0;
  color: var(--text);
  font-size: 15px;
  font-style: normal;
}
.article-entry blockquote p:last-child { margin-bottom: 0; }
.article-entry strong { color: var(--text); font-weight: 700; }
.article-entry table { width: 100%; border-collapse: collapse; margin: 28px 0; font-size: 15px; }
.article-entry th, .article-entry td { border: 1px solid rgba(12, 31, 26, 0.1); padding: 12px 16px; text-align: left; }
.article-entry th { background: var(--bg); font-weight: 600; color: var(--text); }
.article-entry tr:nth-child(even) td { background: rgba(247, 244, 239, 0.5); }
.article-entry hr { border: none; height: 1px; background: rgba(12, 31, 26, 0.1); margin: 36px 0; }
.article-entry code {
  background: rgba(12, 31, 26, 0.06);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 14px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  color: var(--primary);
}
.article-entry pre { background: var(--dark); padding: 24px; border-radius: 12px; overflow-x: auto; margin: 24px 0; }
.article-entry pre code { background: none; color: rgba(255, 255, 255, 0.85); padding: 0; font-size: 14px; }
.article-entry .entry-cta {
  margin: 36px 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 32px;
  text-align: center;
}
.article-entry .entry-cta h4 { margin-bottom: 8px; }
.article-entry .entry-cta p { margin-bottom: 16px; color: var(--muted); font-size: 15px; }

.article-bottom {
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.article-bottom .article-source { font-size: 14px; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.article-bottom .article-source svg { color: var(--gold); }

/* 内容未找到 */
.article-empty {
  max-width: 720px;
  margin: 0 auto;
  padding: 80px 32px;
  text-align: center;
  background: var(--card);
  border: 2px dashed rgba(12, 31, 26, 0.14);
  border-radius: var(--radius-lg);
}
.article-empty__icon { width: 64px; height: 64px; margin: 0 auto 20px; color: rgba(12, 31, 26, 0.2); }
.article-empty h2 { font-family: var(--font-serif); font-size: 28px; color: var(--text); margin-bottom: 8px; }
.article-empty p { color: var(--muted); margin-bottom: 24px; font-size: 15px; }

/* 相关推荐 */
.related-section { padding: 40px 0 80px; }
.related-section .section-head { text-align: center; margin-bottom: 40px; }
.related-section .section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.related-section h2 {
  font-family: var(--font-serif);
  font-size: 30px;
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.02em;
}
.related-grid { row-gap: 24px; }
.related-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(46, 125, 91, 0.35); }
.related-card__img { aspect-ratio: 16 / 9; overflow: hidden; }
.related-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.related-card:hover .related-card__img img { transform: scale(1.04); }
.related-card__body { padding: 20px 24px 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.related-card__meta { display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: var(--muted); }
.related-card__title { font-family: var(--font-serif); font-size: 18px; font-weight: 700; color: var(--text); line-height: 1.5; transition: color 0.2s ease; }
.related-card:hover .related-card__title { color: var(--accent); }
.related-card__link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--accent); transition: gap 0.2s ease; }
.related-card__link:hover { gap: 10px; }
.related-back { text-align: center; margin-top: 48px; }

/* CTA 横幅 */
.cta-banner {
  background: var(--primary);
  color: #fff;
  padding: 80px 0;
  text-align: center;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 480px;
  height: 480px;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(200, 168, 110, 0.18);
  border-radius: 50%;
  pointer-events: none;
}
.cta-banner::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 360px;
  height: 360px;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(200, 168, 110, 0.1);
  border-radius: 50%;
  pointer-events: none;
}
.cta-banner__inner { position: relative; z-index: 1; max-width: 720px; margin: 0 auto; padding: 0 24px; }
.cta-banner h2 { font-family: var(--font-serif); font-size: 30px; font-weight: 700; letter-spacing: 0.02em; color: #fff; margin-bottom: 14px; line-height: 1.4; }
.cta-banner p { color: rgba(255, 255, 255, 0.72); font-size: 16px; margin-bottom: 32px; }
.cta-banner__actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* 页脚 */
.site-footer { background: var(--dark); color: rgba(255, 255, 255, 0.72); padding: 64px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 0.8fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand .brand__text strong { color: #fff; }
.footer-brand .brand__text small { color: rgba(255, 255, 255, 0.55); }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, 0.6); max-width: 320px; }
.footer-col h4 { font-size: 15px; font-weight: 600; color: #fff; letter-spacing: 0.06em; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a { font-size: 14px; color: rgba(255, 255, 255, 0.65); transition: color 0.2s ease, padding-left 0.2s ease; }
.footer-col ul li a:hover { color: var(--gold); padding-left: 6px; }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: rgba(255, 255, 255, 0.65); line-height: 1.6; }
.footer-contact svg { flex-shrink: 0; margin-top: 4px; color: rgba(200, 168, 110, 0.7); }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.48);
}
.footer-bottom a { color: rgba(255, 255, 255, 0.55); transition: color 0.2s ease; }
.footer-bottom a:hover { color: var(--gold); }

/* 滚动渐入 */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.reveal.revealed { opacity: 1; transform: translateY(0); }

/* 响应式 */
@media (max-width: 1023px) {
  .site-nav { display: none; }
  .site-nav.is-open { display: block; position: absolute; top: 72px; left: 0; right: 0; background: rgba(12, 31, 26, 0.9); backdrop-filter: blur(20px) saturate(140%); -webkit-backdrop-filter: blur(20px) saturate(140%); border-bottom: 1px solid rgba(255, 255, 255, 0.12); padding: 16px 24px 28px; }
  .site-nav.is-open ul { flex-direction: column; align-items: stretch; gap: 4px; }
  .site-nav.is-open ul li a { display: block; font-size: 20px; line-height: 56px; padding: 0 8px; color: #fff; border-radius: 8px; }
  .site-nav.is-open ul li a:hover { background: rgba(255, 255, 255, 0.06); }
  .site-nav.is-open ul li a.active { color: var(--gold); }
  .site-nav.is-open ul li a::after { display: none; }
  .header-actions .btn { display: none; }
  .nav-toggle { display: flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}
@media (max-width: 640px) {
  .article-hero { min-height: 260px; padding: 110px 0 40px; }
  .article-hero__title { font-size: 28px; }
  .breadcrumb { font-size: 13px; }
  .article-section { padding: 32px 0 24px; }
  .article-card { padding: 28px 20px; border-radius: 12px; }
  .article-entry h2 { font-size: 24px; }
  .article-entry h3 { font-size: 20px; }
  .article-entry { font-size: 16px; }
  .related-section { padding: 24px 0 48px; }
  .related-section h2 { font-size: 24px; }
  .cta-banner { padding: 56px 0; }
  .cta-banner h2 { font-size: 24px; }
  .cta-banner__actions .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .related-back .btn { width: 100%; }
  .article-bottom { flex-direction: column; align-items: flex-start; }
  .search-box form { flex-direction: column; padding: 12px 0; }
  .search-box.is-open { max-height: 140px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* roulang page: category1 */
:root {
            --primary: #0C1F1A;
            --primary-dark: #06120E;
            --accent: #2E7D5B;
            --gold: #C8A86E;
            --bg: #F7F4EF;
            --white: #FFFFFF;
            --text-title: #10231E;
            --text-body: #2B3A34;
            --text-muted: #6B766F;
            --border: rgba(12, 31, 26, 0.08);
            --border-dark: rgba(255, 255, 255, 0.12);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow: 0 4px 20px rgba(12, 31, 26, 0.05);
            --shadow-hover: 0 12px 32px rgba(12, 31, 26, 0.1);
            --font-title: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
            --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input,
        select,
        textarea {
            font: inherit;
        }
        .grid-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 28px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.02em;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            line-height: 1;
        }
        .btn--primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn--primary:hover {
            background: var(--accent);
            border-color: var(--accent);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(46, 125, 91, 0.3);
        }
        .btn--primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn--primary:focus-visible {
            outline: 3px solid var(--gold);
            outline-offset: 2px;
        }
        .btn--ghost {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
        }
        .btn--ghost:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
        }
        .btn--outline {
            background: transparent;
            border-color: rgba(12, 31, 26, 0.25);
            color: var(--primary);
        }
        .btn--outline:hover {
            background: rgba(12, 31, 26, 0.05);
            border-color: var(--primary);
        }
        .btn--sm {
            height: 40px;
            padding: 0 20px;
            font-size: 14px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            height: 26px;
            padding: 0 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(46, 125, 91, 0.12);
            color: var(--accent);
        }

        .section {
            padding: 96px 0;
        }
        .section--alt {
            background: #FAFAF6;
        }
        .section--dark {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.85);
        }
        .section-head {
            margin-bottom: 40px;
            max-width: 720px;
        }
        .section-head h2 {
            font-family: var(--font-title);
            font-size: 30px;
            color: var(--text-title);
            margin-bottom: 12px;
            position: relative;
            padding-bottom: 16px;
        }
        .section-head h2::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 48px;
            height: 3px;
            background: var(--gold);
            border-radius: 2px;
        }
        .section-head p {
            color: var(--text-muted);
            font-size: 15px;
        }
        .section--dark .section-head h2 {
            color: #fff;
        }
        .section--dark .section-head p {
            color: rgba(255, 255, 255, 0.65);
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 72px;
            z-index: 1000;
            background: rgba(12, 31, 26, 0.32);
            backdrop-filter: blur(16px) saturate(140%);
            -webkit-backdrop-filter: blur(16px) saturate(140%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .site-header.is-scrolled {
            background: rgba(255, 255, 255, 0.94);
            box-shadow: 0 8px 30px rgba(12, 31, 26, 0.08);
            border-bottom-color: rgba(12, 31, 26, 0.08);
        }
        .site-header__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .brand__icon {
            width: 36px;
            height: 36px;
            flex-shrink: 0;
        }
        .brand__text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .brand__text strong {
            font-family: var(--font-title);
            font-size: 20px;
            color: #fff;
            letter-spacing: 0.04em;
            transition: color 0.3s;
        }
        .brand__text small {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.75);
            letter-spacing: 0.18em;
            transition: color 0.3s;
        }
        .site-header.is-scrolled .brand__text strong {
            color: var(--primary);
        }
        .site-header.is-scrolled .brand__text small {
            color: var(--text-muted);
        }

        .site-nav ul {
            display: flex;
            gap: 32px;
        }
        .site-nav a {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            padding: 8px 0;
            color: rgba(255, 255, 255, 0.9);
            transition: color 0.2s;
        }
        .site-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: var(--gold);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.2s ease;
        }
        .site-nav a:hover::after,
        .site-nav a.active::after {
            transform: scaleX(1);
        }
        .site-nav a.active {
            color: #fff;
        }
        .site-nav a:hover {
            color: #fff;
        }
        .site-header.is-scrolled .site-nav a {
            color: var(--text-body);
        }
        .site-header.is-scrolled .site-nav a.active {
            color: var(--primary);
        }
        .site-header.is-scrolled .site-nav a:hover {
            color: var(--primary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .search-toggle {
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: none;
            background: transparent;
            color: #fff;
            cursor: pointer;
            border-radius: 8px;
            transition: background 0.2s, color 0.3s;
        }
        .search-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .search-toggle.is-active {
            color: var(--gold);
        }
        .site-header.is-scrolled .search-toggle {
            color: var(--primary);
        }
        .site-header.is-scrolled .search-toggle:hover {
            background: rgba(12, 31, 26, 0.06);
        }

        .search-box {
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: rgba(12, 31, 26, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            padding: 20px 0;
            display: none;
            z-index: 999;
        }
        .search-box.is-open {
            display: block;
            animation: fadeIn 0.25s ease;
        }
        .search-box form {
            display: flex;
            gap: 12px;
            max-width: 620px;
            margin: 0 auto;
        }
        .search-box input[type="search"] {
            flex: 1;
            height: 44px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            padding: 0 16px;
            font-size: 14px;
            outline: none;
            transition: border-color 0.2s, box-shadow 0.2s;
        }
        .search-box input[type="search"]:focus {
            border-color: var(--gold);
            box-shadow: 0 0 0 3px rgba(200, 168, 110, 0.2);
        }
        .search-box input[type="search"]::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .site-header.is-scrolled .search-box {
            background: rgba(255, 255, 255, 0.97);
            border-bottom-color: rgba(12, 31, 26, 0.08);
        }
        .site-header.is-scrolled .search-box input[type="search"] {
            border-color: #D8D2C8;
            background: #fff;
            color: var(--text-body);
        }
        .site-header.is-scrolled .search-box input[type="search"]::placeholder {
            color: var(--text-muted);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border: none;
            background: transparent;
            cursor: pointer;
            position: relative;
            z-index: 200;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
        }
        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .nav-toggle.is-active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.is-active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.is-active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .site-header.is-scrolled .nav-toggle span {
            background: var(--primary);
        }

        .page-hero {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            padding: 120px 0 56px;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(6, 18, 14, 0.88) 0%, rgba(6, 18, 14, 0.55) 55%, rgba(6, 18, 14, 0.35) 100%);
        }
        .page-hero__content {
            position: relative;
            z-index: 1;
        }
        .page-hero h1 {
            font-family: var(--font-title);
            font-size: 40px;
            font-weight: 700;
            color: #fff;
            margin: 12px 0 12px;
            letter-spacing: 0.02em;
        }
        .page-hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin-bottom: 28px;
        }
        .page-hero__actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .breadcrumb {
            display: flex;
            gap: 8px;
            align-items: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 16px;
        }
        .breadcrumb a {
            color: var(--gold);
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .breadcrumb span {
            display: inline-flex;
        }

        .banner-section {
            padding-top: 72px;
        }
        .banner-wide {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .banner-wide img {
            width: 100%;
            aspect-ratio: 21 / 9;
            object-fit: cover;
        }
        .banner-wide__overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(6, 18, 14, 0.72) 0%, rgba(6, 18, 14, 0.1) 70%);
            display: flex;
            align-items: flex-end;
            padding: 40px;
        }
        .banner-wide__text {
            max-width: 480px;
        }
        .banner-wide__text h3 {
            font-family: var(--font-title);
            font-size: 26px;
            color: #fff;
            margin-bottom: 8px;
        }
        .banner-wide__text p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.6;
        }

        .category-main {
            padding-top: 72px;
        }
        .category-main__intro h2 {
            font-family: var(--font-title);
            font-size: 26px;
            color: var(--text-title);
            margin-bottom: 14px;
        }
        .category-main__intro p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }
        .category-main__intro .divider {
            width: 48px;
            height: 3px;
            background: var(--gold);
            border-radius: 2px;
            margin-bottom: 18px;
        }

        .feature-list {
            margin-top: 32px;
            display: grid;
            gap: 20px;
        }
        .feature-item {
            display: flex;
            gap: 16px;
            padding: 24px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .feature-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(46, 125, 91, 0.3);
        }
        .feature-item__icon {
            width: 48px;
            height: 48px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(46, 125, 91, 0.12);
            color: var(--accent);
            border-radius: 12px;
        }
        .feature-item h3 {
            font-size: 18px;
            color: var(--text-title);
            margin-bottom: 4px;
            font-weight: 600;
        }
        .feature-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .entry-card {
            background: #FAFAF6;
            border: 1px solid rgba(12, 31, 26, 0.08);
            border-radius: var(--radius-lg);
            padding: 32px;
            position: sticky;
            top: 96px;
        }
        .entry-card h3 {
            font-family: var(--font-title);
            font-size: 22px;
            color: var(--text-title);
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 1px solid rgba(12, 31, 26, 0.08);
        }
        .entry-block {
            padding: 16px 0;
            display: flex;
            gap: 14px;
            align-items: flex-start;
            border-bottom: 1px solid rgba(12, 31, 26, 0.06);
        }
        .entry-block:last-child {
            border-bottom: none;
        }
        .entry-block__icon {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: var(--gold);
            border-radius: 10px;
        }
        .entry-block h4 {
            font-size: 16px;
            color: var(--text-title);
            margin-bottom: 2px;
            font-weight: 600;
        }
        .entry-block p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .entry-link {
            color: var(--accent);
            font-weight: 600;
            font-size: 13px;
            display: inline-block;
            margin-top: 6px;
            transition: color 0.2s, transform 0.2s;
        }
        .entry-link:hover {
            color: var(--primary);
            transform: translateX(4px);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .step-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            position: relative;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(46, 125, 91, 0.25);
        }
        .step-item__num {
            width: 44px;
            height: 44px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--gold);
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .step-item h3 {
            font-size: 18px;
            color: var(--text-title);
            margin-bottom: 6px;
            font-weight: 600;
        }
        .step-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .sport-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }
        .sport-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 28px 18px;
            text-align: center;
            transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
        }
        .sport-item:hover {
            background: rgba(255, 255, 255, 0.07);
            border-color: rgba(200, 168, 110, 0.4);
            transform: translateY(-4px);
        }
        .sport-item__icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(200, 168, 110, 0.15);
            border-radius: 50%;
            color: var(--gold);
        }
        .sport-item h3 {
            font-size: 16px;
            color: #fff;
            margin-bottom: 4px;
            font-weight: 600;
        }
        .sport-item p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.5;
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #FAFAF7;
            border: 1px solid rgba(12, 31, 26, 0.08);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.25s, box-shadow 0.25s;
        }
        .faq-item.is-open {
            border-color: rgba(46, 125, 91, 0.25);
            box-shadow: var(--shadow);
        }
        .faq-item__question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 20px 24px;
            background: none;
            border: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-title);
            cursor: pointer;
            text-align: left;
            transition: color 0.2s;
        }
        .faq-item__question:hover {
            color: var(--accent);
        }
        .faq-item__icon {
            position: relative;
            width: 16px;
            height: 16px;
            flex-shrink: 0;
        }
        .faq-item__icon::before,
        .faq-item__icon::after {
            content: '';
            position: absolute;
            background: var(--accent);
            border-radius: 2px;
            transition: transform 0.3s;
        }
        .faq-item__icon::before {
            width: 16px;
            height: 2px;
            top: 7px;
            left: 0;
        }
        .faq-item__icon::after {
            width: 2px;
            height: 16px;
            top: 0;
            left: 7px;
        }
        .faq-item.is-open .faq-item__icon {
            transform: rotate(45deg);
        }
        .faq-item__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .faq-item.is-open .faq-item__answer {
            max-height: 400px;
        }
        .faq-item__answer p {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .cta-banner {
            background: var(--primary);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            width: 320px;
            height: 320px;
            border: 1px solid rgba(200, 168, 110, 0.25);
            border-radius: 50%;
            top: -120px;
            right: -80px;
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            width: 200px;
            height: 200px;
            border: 1px solid rgba(200, 168, 110, 0.15);
            border-radius: 50%;
            bottom: -60px;
            left: 10%;
        }
        .cta-banner .grid-container {
            position: relative;
            z-index: 1;
        }
        .cta-banner h2 {
            font-family: var(--font-title);
            font-size: 32px;
            color: #fff;
            text-align: center;
            margin-bottom: 12px;
            font-weight: 700;
        }
        .cta-banner p {
            text-align: center;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 32px;
            font-size: 16px;
        }
        .cta-banner__actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.65);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .brand__text strong {
            color: #fff;
        }
        .footer-brand .brand__text small {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            margin-top: 16px;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 16px;
            color: #fff;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col ul {
            display: grid;
            gap: 10px;
        }
        .footer-col a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: color 0.2s;
        }
        .footer-col a:hover {
            color: var(--gold);
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
        }
        .footer-contact svg {
            color: var(--gold);
            flex-shrink: 0;
        }
        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }
        .reveal.is-visible {
            opacity: 1;
            transform: none;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: none;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }
            .reveal {
                opacity: 1;
                transform: none;
                transition: opacity 0.3s ease;
            }
            .btn,
            .feature-item,
            .step-item,
            .sport-item {
                transition: none;
            }
        }

        @media (max-width: 1023px) {
            .site-nav {
                position: fixed;
                top: 0;
                right: -100%;
                width: 320px;
                height: 100vh;
                background: rgba(12, 31, 26, 0.92);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                transition: right 0.3s ease;
                z-index: 150;
                padding: 100px 32px 32px;
                box-shadow: -10px 0 40px rgba(0, 0, 0, 0.2);
            }
            .site-nav.is-open {
                right: 0;
            }
            .site-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .site-nav a {
                display: block;
                font-size: 20px;
                line-height: 56px;
                color: #fff !important;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                padding: 0;
            }
            .site-nav a::after {
                display: none;
            }
            .site-nav a.active {
                color: var(--gold) !important;
            }
            .nav-toggle {
                display: flex;
            }
            .header-actions .btn--sm {
                display: none;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .sport-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 639px) {
            .section {
                padding: 56px 0;
            }
            .page-hero {
                min-height: 280px;
                padding: 100px 0 40px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero p {
                font-size: 16px;
            }
            .banner-wide__overlay {
                padding: 20px;
            }
            .banner-wide__text h3 {
                font-size: 20px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .sport-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .sport-item {
                padding: 20px 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-banner {
                padding: 56px 0;
            }
            .cta-banner h2 {
                font-size: 24px;
            }
            .entry-card {
                position: static;
            }
            .feature-item {
                flex-direction: row;
                padding: 20px;
            }
            .page-hero__actions .btn {
                flex: 1;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #0C1F1A;
  --primary-2: #14352C;
  --accent: #2E7D5B;
  --accent-soft: rgba(46,125,91,0.12);
  --gold: #C8A86E;
  --gold-soft: rgba(200,168,110,0.2);
  --bg: #F7F4EF;
  --card: #FFFFFF;
  --dark: #06120E;
  --title: #10231E;
  --text: #2B3A34;
  --muted: #6B766F;
  --border: rgba(12,31,26,0.08);
  --border-dark: rgba(255,255,255,0.12);
  --shadow-sm: 0 4px 20px rgba(12,31,26,0.05);
  --shadow-lg: 0 12px 32px rgba(12,31,26,0.1);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --section-space: 96px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

.grid-container { max-width: 1200px; }

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

.badge {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 12px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  background: var(--accent-soft);
  color: var(--accent);
}

.section { padding: var(--section-space) 0; }
.section--dark { background: var(--dark); }
.section--bg { background: var(--bg); }

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}
.section-head h2 {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 700;
  color: var(--title);
  letter-spacing: 0.02em;
  margin: 14px 0 12px;
}
.section-head p { color: var(--muted); font-size: 16px; }
.section--dark .section-head h2 { color: #fff; }
.section--dark .section-head p { color: rgba(255,255,255,0.65); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.btn--primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(12,31,26,0.18); }
.btn--primary:hover { background: var(--accent); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(46,125,91,0.28); }
.btn--primary:active { transform: translateY(0); }
.btn--primary:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; }
.btn--ghost { background: rgba(255,255,255,0.08); color: #fff; border: 1px solid rgba(255,255,255,0.5); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.btn--ghost:hover { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.85); }
.btn--dark-ghost { background: transparent; color: var(--primary); border: 1px solid rgba(12,31,26,0.25); }
.btn--dark-ghost:hover { background: rgba(12,31,26,0.05); border-color: rgba(12,31,26,0.5); }
.btn--sm { height: 40px; padding: 0 20px; font-size: 14px; }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 72px;
  z-index: 100;
  background: rgba(12,31,26,0.32);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid rgba(255,255,255,0.12);
  transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.site-header.is-scrolled {
  background: rgba(255,255,255,0.94);
  box-shadow: 0 6px 24px rgba(12,31,26,0.08);
  border-bottom-color: rgba(12,31,26,0.06);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand__icon { width: 42px; height: 42px; flex-shrink: 0; }
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__text strong {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.06em;
  transition: color 0.3s ease;
}
.brand__text small { font-size: 11px; color: rgba(255,255,255,0.75); letter-spacing: 0.12em; transition: color 0.3s ease; }
.site-header.is-scrolled .brand__text strong { color: var(--primary); }
.site-header.is-scrolled .brand__text small { color: var(--muted); }

.site-nav ul { display: flex; gap: 34px; }
.site-nav a {
  position: relative;
  display: inline-block;
  padding: 8px 0;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,0.88);
  transition: color 0.25s ease;
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.site-nav a:hover { color: #fff; }
.site-nav a:hover::after { transform: scaleX(1); }
.site-nav a.active { color: var(--gold); }
.site-nav a.active::after { transform: scaleX(1); }
.site-header.is-scrolled .site-nav a { color: var(--primary); }
.site-header.is-scrolled .site-nav a:hover { color: var(--accent); }
.site-header.is-scrolled .site-nav a.active { color: var(--gold); }

.header-actions { display: flex; align-items: center; gap: 18px; }
.search-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  color: rgba(255,255,255,0.9);
  background: rgba(255,255,255,0.1);
  transition: background 0.25s ease, color 0.25s ease;
}
.search-toggle:hover { background: rgba(255,255,255,0.2); color: #fff; }
.site-header.is-scrolled .search-toggle { color: var(--primary); background: rgba(12,31,26,0.06); }
.site-header.is-scrolled .search-toggle:hover { background: rgba(12,31,26,0.12); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 44px; height: 44px; align-items: center; justify-content: center; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: #fff; border-radius: 2px; transition: background 0.3s ease; }
.site-header.is-scrolled .nav-toggle span { background: var(--primary); }

.search-box {
  position: fixed;
  top: 72px;
  left: 0;
  width: 100%;
  background: rgba(255,255,255,0.97);
  border-bottom: 1px solid rgba(12,31,26,0.08);
  box-shadow: 0 10px 30px rgba(12,31,26,0.08);
  padding: 20px 0;
  transform: translateY(-120%);
  opacity: 0;
  visibility: hidden;
  transition: transform 0.35s ease, opacity 0.35s ease, visibility 0.35s ease;
  z-index: 99;
}
.search-box.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
.search-box form { display: flex; gap: 12px; }
.search-box input[type="search"] {
  flex: 1;
  height: 48px;
  padding: 0 18px;
  border: 1px solid #D8D2C8;
  border-radius: var(--radius-sm);
  font-size: 15px;
  background: #fff;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.search-box input[type="search"]:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(46,125,91,0.15); }

.page-hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 320px;
  padding: 120px 0 64px;
  background-size: cover;
  background-position: center;
  color: #fff;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 120px;
  background: linear-gradient(to top, var(--bg), transparent);
  pointer-events: none;
}
.page-hero .grid-container { position: relative; z-index: 2; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 18px;
}
.breadcrumb a { color: rgba(255,255,255,0.85); transition: color 0.25s ease; }
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb .current { color: var(--gold); }
.page-hero h1 {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: #fff;
  margin-bottom: 14px;
}
.page-hero__sub {
  max-width: 680px;
  font-size: 18px;
  line-height: 1.7;
  color: rgba(255,255,255,0.85);
}

.section--banner { padding: 56px 0 0; }
.banner-wide {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  line-height: 0;
}
.banner-wide img { width: 100%; height: auto; aspect-ratio: 21 / 9; object-fit: cover; }

.section--about { padding-top: 72px; }
.about-intro { max-width: 640px; margin-bottom: 40px; }
.about-intro .badge { margin-bottom: 14px; }
.about-intro h2 {
  font-family: var(--font-serif);
  font-size: 30px;
  color: var(--title);
  letter-spacing: 0.02em;
  margin-bottom: 16px;
}
.about-intro p { color: var(--text); margin-bottom: 14px; }
.about-intro p:last-child { margin-bottom: 0; }

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.feature-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.feature-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(46,125,91,0.35); }
.feature-item__icon {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 16px;
}
.feature-item h3 { font-size: 17px; font-weight: 700; color: var(--title); margin-bottom: 6px; }
.feature-item p { font-size: 14px; color: var(--muted); line-height: 1.6; }

.side-card {
  background: rgba(255,255,255,0.72);
  border: 1px solid rgba(12,31,26,0.06);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 100px;
}
.side-card h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--title);
  margin-bottom: 8px;
}
.side-card > p { font-size: 14px; color: var(--muted); margin-bottom: 20px; }
.entry-block {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px;
  margin-bottom: 12px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.entry-block:hover { border-color: rgba(46,125,91,0.35); box-shadow: var(--shadow-sm); }
.entry-block:last-child { margin-bottom: 0; }
.entry-block__icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: rgba(200,168,110,0.18);
  color: #A8884E;
}
.entry-block h4 { font-size: 15px; font-weight: 700; color: var(--title); margin-bottom: 3px; }
.entry-block p { font-size: 13px; color: var(--muted); line-height: 1.55; }

.section--steps { background: var(--dark); color: rgba(255,255,255,0.85); }
.step-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  text-align: left;
  transition: background 0.25s ease, transform 0.25s ease;
  height: 100%;
}
.step-card:hover { background: rgba(255,255,255,0.08); transform: translateY(-4px); }
.step-card__num {
  font-family: var(--font-serif);
  font-size: 42px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 18px;
}
.step-card h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.step-card p { font-size: 15px; color: rgba(255,255,255,0.65); line-height: 1.6; }

.feature-grid--wide { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.highlight-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.highlight-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.highlight-card__icon {
  width: 52px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--gold-soft);
  color: #A8884E;
  margin-bottom: 18px;
}
.highlight-card h3 { font-size: 17px; color: var(--title); margin-bottom: 8px; }
.highlight-card p { font-size: 14px; color: var(--muted); line-height: 1.6; }

.faq-section { background: var(--bg); }
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: #FAFAF7;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.faq-item.active { border-color: rgba(46,125,91,0.3); box-shadow: var(--shadow-sm); }
.faq-item__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--title);
  transition: color 0.25s ease;
}
.faq-item__question:hover { color: var(--accent); }
.faq-item__icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 18px;
  line-height: 1;
  transition: transform 0.3s ease, background 0.3s ease;
}
.faq-item.active .faq-item__icon { transform: rotate(45deg); background: rgba(200,168,110,0.2); color: #A8884E; }
.faq-item__answer { max-height: 0; padding: 0 24px; overflow: hidden; transition: max-height 0.35s ease, padding 0.35s ease; }
.faq-item.active .faq-item__answer { max-height: 400px; padding: 0 24px 22px; }
.faq-item__answer p { font-size: 15px; color: var(--muted); line-height: 1.7; }

.cta-band {
  background: var(--primary);
  text-align: center;
  padding: 88px 0;
  position: relative;
  overflow: hidden;
}
.cta-band::before,
.cta-band::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(200,168,110,0.18);
}
.cta-band::before { width: 320px; height: 320px; top: -120px; right: -60px; }
.cta-band::after { width: 220px; height: 220px; bottom: -80px; left: -40px; }
.cta-band .grid-container { position: relative; z-index: 2; }
.cta-band h2 {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
  margin-bottom: 12px;
}
.cta-band p { color: rgba(255,255,255,0.7); max-width: 560px; margin: 0 auto 32px; }
.cta-band__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.site-footer { background: var(--dark); color: rgba(255,255,255,0.7); padding: 72px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.2fr; gap: 48px; padding-bottom: 48px; }
.footer-brand { max-width: 340px; }
.footer-brand .brand__text strong { color: #fff; }
.footer-brand .brand__text small { color: rgba(255,255,255,0.55); }
.footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,0.55); margin-top: 16px; }
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  transition: color 0.25s ease;
}
.footer-col a:hover { color: var(--gold); }
.footer-contact li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,0.6); }
.footer-contact svg { flex-shrink: 0; color: var(--gold); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

@media (max-width: 1023px) {
  .site-nav {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    background: rgba(12,31,26,0.9);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding: 12px 24px 24px;
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.35s ease, opacity 0.35s ease, visibility 0.35s ease;
  }
  .site-nav.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav a { display: block; padding: 14px 0; font-size: 20px; color: #fff !important; border-bottom: 1px solid rgba(255,255,255,0.08); }
  .site-nav a::after { display: none; }
  .site-nav a.active { color: var(--gold) !important; }
  .nav-toggle { display: inline-flex; }
  .mobile-cta { display: inline-flex !important; margin-top: 20px; width: 100%; justify-content: center; }
  .feature-grid--wide { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
  :root { --section-space: 56px; }
  .section-head { margin-bottom: 36px; }
  .section-head h2 { font-size: 24px; }
  .page-hero { min-height: 280px; padding: 100px 0 48px; }
  .page-hero h1 { font-size: 28px; }
  .page-hero__sub { font-size: 16px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-grid--wide { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-brand { max-width: 100%; }
  .cta-band { padding: 64px 0; }
  .cta-band h2 { font-size: 24px; }
  .step-card { padding: 24px 20px; }
  .side-card { position: static; }
  .banner-wide img { aspect-ratio: 16 / 9; }
  .search-box form { flex-direction: column; }
  .search-box .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto !important; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}