/* roulang page: index */
:root{
  --primary:#0B3B2E;
  --primary-hover:#145A46;
  --accent:#C6A15B;
  --accent-hover:#A98644;
  --bg:#F6F5F2;
  --bg-soft:#E7EFEA;
  --card:#FFFFFF;
  --dark:#0D201A;
  --text:#1F2933;
  --text-muted:#6B7280;
  --border:#E5E2DC;
  --success:#2E8B6B;
  --radius:12px;
  --radius-btn:8px;
  --shadow:0 4px 20px rgba(0,0,0,0.05);
  --shadow-hover:0 8px 30px rgba(0,0,0,0.09);
  --transition:0.2s ease;
  --container:1200px;
  --font-main:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"DIN Alternate","Roboto Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  background:var(--bg);
  color:var(--text);
  font-size:15px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
::selection{background:rgba(198,161,91,0.25)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section-padding{padding:96px 0}
.section-padding-sm{padding:64px 0}
.text-center{text-align:center}

/* 小标签 */
.eyebrow{
  display:inline-block;
  font-size:11px;
  letter-spacing:0.14em;
  font-weight:700;
  color:var(--accent);
  text-transform:uppercase;
  margin-bottom:16px;
  position:relative;
  padding-left:18px;
}
.eyebrow::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:10px;height:2px;
  background:var(--accent);
  border-radius:2px;
}
.section-header{margin-bottom:48px}
.section-header h2{
  font-size:32px;
  font-weight:800;
  color:var(--primary);
  letter-spacing:-0.02em;
  line-height:1.25;
}
.section-header .sub-desc{
  margin-top:12px;
  font-size:15px;
  color:var(--text-muted);
  max-width:520px;
}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--radius-btn);
  font-size:14px;
  font-weight:600;
  line-height:1;
  border:none;
  cursor:pointer;
  background:var(--primary);
  color:#fff;
  transition:background var(--transition), box-shadow var(--transition), transform 0.15s ease;
  box-shadow:0 2px 8px rgba(11,59,46,0.15);
  margin:0;
  white-space:nowrap;
}
.btn:hover{
  background:var(--primary-hover);
  box-shadow:0 6px 20px rgba(11,59,46,0.2);
  transform:translateY(-2px);
  color:#fff;
}
.btn:active{transform:translateY(1px);box-shadow:0 2px 6px rgba(11,59,46,0.15)}
.btn-accent{
  background:var(--accent);
  color:#fff;
  box-shadow:0 2px 10px rgba(198,161,91,0.25);
}
.btn-accent:hover{background:var(--accent-hover);color:#fff;box-shadow:0 6px 20px rgba(198,161,91,0.3)}
.btn-outline{
  background:transparent;
  color:var(--text);
  border:1px solid var(--border);
  box-shadow:none;
}
.btn-outline:hover{background:#fff;border-color:var(--primary);color:var(--primary);box-shadow:0 4px 14px rgba(11,59,46,0.1)}

/* 下载按钮组 */
.download-btns{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.download-btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  height:48px;
  padding:0 22px;
  background:var(--primary);
  color:#fff;
  border-radius:var(--radius-btn);
  font-size:13px;
  font-weight:600;
  transition:background 0.2s, box-shadow 0.2s, transform 0.15s;
  box-shadow:0 2px 10px rgba(11,59,46,0.12);
  cursor:pointer;
  border:none;
  line-height:1;
}
.download-btn svg{width:20px;height:20px;fill:currentColor}
.download-btn:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:0 8px 22px rgba(11,59,46,0.22);color:#fff}
.download-btn .btn-text{display:flex;flex-direction:column;align-items:flex-start;line-height:1.2;text-align:left}
.download-btn .btn-text strong{font-size:13px;font-weight:700}
.download-btn .btn-text span{font-size:10px;opacity:0.65;font-family:var(--font-num)}
.btn-group-inline{display:flex;flex-wrap:wrap;gap:12px}

/* 导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:200;
  background:rgba(255,255,255,0.92);
  backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid var(--border);
  transition:box-shadow 0.3s ease;
}
.site-header.scrolled{box-shadow:0 4px 16px rgba(0,0,0,0.06)}
.nav-wrap{display:flex;align-items:center;height:76px;justify-content:space-between;gap:24px}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:800;
  color:var(--primary);
  letter-spacing:-0.01em;
  flex-shrink:0;
}
.logo-icon{
  width:36px;height:36px;
  background:var(--primary);
  border-radius:8px;
  display:flex;
  align-items:center;
  justify-content:center;
  position:relative;
  flex-shrink:0;
}
.logo-icon::before{
  content:"";
  width:18px;height:18px;
  background:var(--accent);
  clip-path:polygon(0 0,100% 0,50% 100%);
  display:block;
}
.site-nav{display:flex;align-items:center;gap:32px;margin-left:16px}
.site-nav a{
  font-size:14px;
  font-weight:500;
  color:var(--text);
  padding:8px 0;
  position:relative;
  transition:color 0.25s ease;
  white-space:nowrap;
}
.site-nav a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:2px;
  width:0;
  background:var(--primary);
  transition:width 0.25s ease;
  border-radius:2px;
}
.site-nav a:hover,.site-nav a.active{color:var(--primary);font-weight:600}
.site-nav a:hover::after,.site-nav a.active::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.search-box{
  position:relative;
  display:flex;
  align-items:center;
}
.search-box .search-icon{position:absolute;left:12px;pointer-events:none;width:16px;height:16px;color:var(--text-muted)}
.search-input{
  height:38px;
  width:180px;
  border:1px solid var(--border);
  border-radius:999px;
  padding:0 16px 0 36px;
  background:#fff;
  font-size:13px;
  color:var(--text);
  transition:width 0.25s var(--transition), border-color 0.2s;
}
.search-input::placeholder{color:var(--text-muted)}
.search-input:focus{width:240px;border-color:var(--primary);outline:none}
.nav-btn{
  height:38px;
  padding:0 20px;
  font-size:13px;
  background:var(--primary);
  color:#fff;
  border:none;
  border-radius:999px;
  cursor:pointer;
  font-weight:600;
  transition:background 0.2s, box-shadow 0.2s;
}
.nav-btn:hover{background:var(--primary-hover);box-shadow:0 4px 12px rgba(11,59,46,0.2)}

/* 移动端汉堡 */
.nav-toggle{
  display:none;
  background:none;
  border:none;
  width:44px;height:44px;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  cursor:pointer;
  flex-shrink:0;
  margin-left:4px;
}
.nav-toggle span{
  width:22px;height:2px;
  background:var(--primary);
  border-radius:2px;
  transition:transform 0.3s ease, opacity 0.2s ease, width 0.2s ease;
}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 移动端抽屉 */
.drawer{
  display:none;
  position:fixed;
  top:76px;left:0;right:0;bottom:0;
  background:rgba(255,255,255,0.98);
  z-index:199;
  padding:32px 28px;
  flex-direction:column;
  gap:8px;
  overflow-y:auto;
  opacity:0;
  pointer-events:none;
  transition:opacity 0.3s ease;
}
.drawer.open{display:flex;opacity:1;pointer-events:auto}
.drawer a{
  font-size:18px;
  font-weight:600;
  color:var(--text);
  padding:16px 0;
  border-bottom:1px solid var(--border);
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.drawer a.active{color:var(--primary)}
.drawer a i{font-style:normal;color:var(--accent);font-size:14px}
.drawer .drawer-cta{margin-top:24px}

/* Hero */
.hero{
  min-height:560px;
  display:flex;
  align-items:center;
  background:linear-gradient(135deg,var(--bg) 0%,var(--bg-soft) 100%);
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--border);
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:0.08;
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  top:-120px;right:-120px;
  width:520px;height:520px;
  background:radial-gradient(circle, rgba(198,161,91,0.14) 0%, transparent 70%);
  pointer-events:none;
  z-index:1;
}
.hero .container{position:relative;z-index:2}
.hero-left{padding:60px 0}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:rgba(198,161,91,0.12);
  color:var(--accent-hover);
  border:1px solid rgba(198,161,91,0.25);
  padding:4px 14px;
  border-radius:999px;
  font-size:11px;
  font-weight:600;
  letter-spacing:0.06em;
  margin-bottom:22px;
  text-transform:uppercase;
}
.hero-tag span{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.hero h1{
  font-size:52px;
  font-weight:800;
  color:var(--primary);
  letter-spacing:-0.02em;
  line-height:1.2;
  margin-bottom:18px;
}
.hero-sub{
  font-size:17px;
  color:var(--text-muted);
  max-width:440px;
  line-height:1.8;
  margin-bottom:30px;
}
.hero-meta{
  margin-top:22px;
  font-family:var(--font-num);
  font-size:12px;
  color:var(--text-muted);
  display:flex;
  gap:20px;
  align-items:center;
  flex-wrap:wrap;
}
.hero-meta span{display:inline-flex;align-items:center;gap:6px}
.hero-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--border);margin:0 4px}
.hero-visual{
  position:relative;
  padding:40px 0;
}
.hero-window{
  background:var(--card);
  border-radius:var(--radius);
  box-shadow:0 20px 50px rgba(11,59,46,0.12);
  overflow:hidden;
  border:1px solid rgba(255,255,255,0.7);
  position:relative;
}
.hero-window-top{
  height:40px;
  background:#fafaf9;
  display:flex;
  align-items:center;
  padding:0 16px;
  gap:6px;
  border-bottom:1px solid var(--border);
}
.hero-window-top span{width:10px;height:10px;border-radius:50%;background:#E5E2DC;display:block}
.hero-window-top span:first-child{background:#FF5F57}
.hero-window-top span:nth-child(2){background:#FEBC2E}
.hero-window-top span:nth-child(3){background:#28C840}
.hero-window-img{aspect-ratio:16/10;background:url('/assets/images/coverpic/cover-1.png') center/cover no-repeat;position:relative}
.hero-window-img::after{
  content:"betway官方网站 · Explorer";
  position:absolute;
  bottom:0;left:0;right:0;
  background:linear-gradient(to top, rgba(255,255,255,0.9), transparent);
  padding:40px 20px 12px;
  font-size:12px;
  color:var(--text-muted);
  letter-spacing:0.05em;
  pointer-events:none;
}
.hero-float-card{
  position:absolute;
  bottom:30px;left:-24px;
  background:var(--card);
  border-radius:var(--radius);
  box-shadow:var(--shadow-hover);
  padding:16px 20px;
  display:flex;
  align-items:center;
  gap:12px;
  z-index:4;
  max-width:260px;
  border:1px solid rgba(255,255,255,0.8);
}
.hero-float-card .icon{
  width:36px;height:36px;
  border-radius:10px;
  background:var(--accent);
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  flex-shrink:0;
}
.hero-float-card .info small{display:block;font-size:11px;color:var(--text-muted);line-height:1.3}
.hero-float-card .info strong{font-size:12px;color:var(--text);font-weight:600;letter-spacing:0.01em}

/* 功能轮播 */
.features-carousel{background:var(--bg);border-bottom:1px solid var(--border)}
.features-header{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  margin-bottom:40px;
  flex-wrap:wrap;
  gap:16px;
}
.carousel-arrows{display:flex;gap:10px}
.carousel-arrow{
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--border);
  background:#fff;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--text);
  transition:background 0.2s, border-color 0.2s, color 0.2s, transform 0.15s;
}
.carousel-arrow:hover{background:var(--primary);border-color:var(--primary);color:#fff}
.carousel-arrow:active{transform:scale(0.94)}
.carousel-track{
  display:flex;
  gap:24px;
  overflow-x:auto;
  scroll-behavior:smooth;
  padding-bottom:16px;
  scrollbar-width:none;
}
.carousel-track::-webkit-scrollbar{display:none}
.carousel-card{
  flex:0 0 320px;
  background:var(--card);
  border-radius:var(--radius);
  border:1px solid var(--border);
  overflow:hidden;
  transition:box-shadow 0.25s ease, transform 0.25s ease;
  cursor:pointer;
}
.carousel-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.carousel-img-wrap{
  aspect-ratio:4/3;
  overflow:hidden;
  position:relative;
}
.carousel-img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s ease}
.carousel-card:hover .carousel-img-wrap img{transform:scale(1.04)}
.carousel-card .card-body{padding:22px 20px}
.carousel-card .card-body h3{font-size:17px;font-weight:700;color:var(--primary);margin-bottom:8px;letter-spacing:-0.01em}
.carousel-card .card-body p{font-size:13px;color:var(--text-muted);line-height:1.7}
.carousel-dots{display:flex;justify-content:center;gap:6px;margin-top:24px}
.carousel-dots button{
  width:7px;height:7px;
  border-radius:50%;
  border:none;
  background:rgba(11,59,46,0.18);
  cursor:pointer;
  padding:0;
  transition:background 0.3s, width 0.2s;
}
.carousel-dots button.active{background:var(--accent);width:22px;border-radius:4px}

/* 系统要求 */
.requirements{background:var(--bg);border-bottom:1px solid var(--border)}
.req-grid{display:flex;flex-wrap:wrap;gap:24px}
.req-card{
  background:var(--card);
  border-radius:var(--radius);
  border:1px solid var(--border);
  padding:32px;
  flex:1 1 calc(33% - 24px);
  min-width:250px;
  transition:box-shadow 0.25s ease, transform 0.25s ease;
}
.req-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.req-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px}
.req-head h3{font-size:17px;font-weight:700;color:var(--text);display:flex;align-items:center;gap:10px}
.req-head .platform-icon{width:28px;height:28px;border-radius:8px;background:var(--bg-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:13px}
.req-badge{
  font-size:11px;
  padding:3px 10px;
  border-radius:999px;
  background:rgba(46,139,107,0.12);
  color:var(--success);
  font-weight:700;
  letter-spacing:0.03em;
  white-space:nowrap;
}
.req-list{display:flex;flex-direction:column;gap:10px}
.req-list-item{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding-bottom:8px;border-bottom:1px dashed var(--border)}
.req-list-item:last-child{border-bottom:none;padding-bottom:0}
.req-list-item dt{font-size:12px;color:var(--text-muted);white-space:nowrap}
.req-list-item dd{font-size:13px;font-weight:600;color:var(--text);text-align:right;font-family:var(--font-num)}
.compat-card{
  background:var(--bg-soft);
  border-radius:var(--radius);
  padding:26px 28px;
  margin-bottom:20px;
  border:1px solid rgba(255,255,255,0.8);
}
.compat-card h4{font-size:15px;font-weight:700;color:var(--primary);margin-bottom:10px;display:flex;align-items:center;gap:8px}
.compat-card .status-dot{width:8px;height:8px;border-radius:50%;background:var(--success);display:inline-block;box-shadow:0 0 0 3px rgba(46,139,107,0.15)}
.compat-card p{font-size:13px;color:var(--text-muted);line-height:1.7}
.grey-card{
  background:var(--card);
  border-radius:var(--radius);
  border:1px solid var(--border);
  padding:26px 28px;
  box-shadow:var(--shadow);
}
.grey-card h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:10px}
.grey-card ul{display:flex;flex-direction:column;gap:8px}
.grey-card li{font-size:13px;color:var(--text-muted);display:flex;gap:8px;align-items:flex-start}
.grey-card li::before{content:"✓";color:var(--success);font-weight:700;flex-shrink:0}

/* 评价墙 */
.reviews{background:var(--card);border-bottom:1px solid var(--border)}
.reviews-grid{columns:3;column-gap:24px}
.review-card{
  break-inside:avoid;
  margin-bottom:24px;
  background:var(--card);
  border-radius:var(--radius);
  border:1px solid var(--border);
  padding:26px 26px 22px;
  transition:box-shadow 0.25s ease, transform 0.25s ease;
}
.review-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.stars{color:var(--accent);font-size:14px;letter-spacing:2px;margin-bottom:12px;display:flex;gap:2px}
.review-card blockquote{font-size:14px;color:var(--text);line-height:1.8;margin-bottom:18px;border:none;padding:0}
.review-author{display:flex;align-items:center;gap:12px;margin-top:auto}
.review-avatar{
  width:36px;height:36px;
  border-radius:50%;
  background:var(--primary);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  font-weight:700;
  flex-shrink:0;
}
.review-author .name{font-size:13px;font-weight:600;color:var(--text);line-height:1.2}
.review-author .source{font-size:11px;color:var(--text-muted);display:block;margin-top:2px}

/* 资讯列表 */
.news-section{background:var(--bg)}
.news-list{
  background:var(--card);
  border-radius:var(--radius);
  border:1px solid var(--border);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.news-item{
  display:flex;
  align-items:center;
  gap:24px;
  padding:24px 28px;
  border-bottom:1px solid var(--border);
  transition:background 0.2s ease;
  cursor:pointer;
  position:relative;
}
.news-item:last-child{border-bottom:none}
.news-item:hover{background:var(--bg-soft)}
.news-item:hover .news-title{color:var(--primary)}
.news-item:hover .news-arrow{transform:translateX(4px)}
.news-date{
  font-family:var(--font-num);
  font-size:13px;
  color:var(--text-muted);
  width:64px;
  flex-shrink:0;
}
.news-date .day{font-size:20px;font-weight:700;color:var(--primary);display:block;line-height:1.2}
.news-date .mon{font-size:11px;letter-spacing:0.04em}
.news-body{flex:1;min-width:0}
.news-title{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  transition:color 0.2s;
}
.news-summary{
  font-size:13px;
  color:var(--text-muted);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  margin-top:4px;
  max-width:560px;
}
.news-meta{display:flex;align-items:center;gap:18px;flex-shrink:0}
.news-badge{
  font-size:11px;
  font-weight:600;
  padding:4px 12px;
  border-radius:999px;
  background:rgba(11,59,46,0.08);
  color:var(--primary);
  white-space:nowrap;
}
.news-arrow{color:var(--accent);font-size:18px;transition:transform 0.2s ease;flex-shrink:0}
.news-empty{
  border:1.5px dashed var(--accent);
  border-radius:var(--radius);
  padding:48px 24px;
  text-align:center;
  background:rgba(198,161,91,0.03);
}
.news-empty svg{width:42px;height:42px;color:var(--accent);margin-bottom:12px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.news-empty p{color:var(--text-muted);font-size:14px}

/* FAQ */
.faq-section{background:var(--card)}
.faq-wrap{max-width:760px;margin:0 auto}
.faq-item{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow 0.25s ease, border-color 0.2s;
}
.faq-item:hover{box-shadow:var(--shadow);border-color:rgba(198,161,91,0.4)}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  gap:14px;
  padding:20px 24px;
  background:none;
  border:none;
  cursor:pointer;
  text-align:left;
  font-size:15px;
  font-weight:600;
  color:var(--text);
  transition:color 0.2s;
}
.faq-question:hover,.faq-question.open{color:var(--primary)}
.faq-q-icon{
  flex-shrink:0;
  width:24px;height:24px;
  background:var(--accent);
  color:#fff;
  border-radius:7px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  font-weight:800;
}
.faq-toggle{
  margin-left:auto;
  font-size:22px;
  color:var(--text-muted);
  flex-shrink:0;
  width:20px;
  height:20px;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:transform 0.3s ease, color 0.2s;
  line-height:1;
}
.faq-question.open .faq-toggle{transform:rotate(45deg);color:var(--accent)}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height 0.35s ease, padding 0.3s ease;
}
.faq-answer-inner{
  padding:0 24px 22px 62px;
  font-size:14px;
  color:var(--text-muted);
  line-height:1.85;
}

/* CTA */
.cta-download{
  background:var(--dark);
  position:relative;
  overflow:hidden;
  padding:110px 0;
  border-top:1px solid rgba(255,255,255,0.06);
}
.cta-download::before{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:0.08;
}
.cta-download::after{
  content:"";
  position:absolute;
  bottom:-180px;left:50%;
  transform:translateX(-50%);
  width:900px;height:520px;
  background:radial-gradient(ellipse, rgba(198,161,91,0.1), transparent 70%);
  pointer-events:none;
}
.cta-download .container{position:relative;z-index:2;text-align:center}
.cta-download h2{
  color:#fff;
  font-size:34px;
  font-weight:800;
  margin-bottom:16px;
  letter-spacing:-0.02em;
}
.cta-download .cta-divider{
  width:44px;height:2px;
  background:var(--accent);
  margin:0 auto 26px;
  border-radius:2px;
}
.cta-download p.cta-dessc{
  color:rgba(255,255,255,0.65);
  font-size:15px;
  max-width:520px;
  margin:0 auto 40px;
  line-height:1.8;
}
.cta-download .download-btns{justify-content:center}
.cta-download .download-btn{
  background:var(--accent);
  color:#fff;
  box-shadow:0 4px 18px rgba(198,161,91,0.25);
}
.cta-download .download-btn:hover{background:var(--accent-hover);box-shadow:0 8px 30px rgba(198,161,91,0.35)}
.cta-download .download-btn .btn-text span{opacity:0.9}
.cta-trust{
  margin-top:30px;
  font-size:12px;
  font-family:var(--font-num);
  color:rgba(255,255,255,0.35);
  display:flex;
  gap:16px;
  justify-content:center;
  flex-wrap:wrap;
}
.cta-trust span{display:inline-block}

/* 页脚 */
.site-footer{
  background:var(--dark);
  padding-top:80px;
  color:rgba(255,255,255,0.75);
  position:relative;
}
.site-footer .footer-top{
  border-top:1px solid rgba(255,255,255,0.08);
  padding-bottom:56px;
  display:flex;
  flex-wrap:wrap;
  gap:48px;
}
.footer-brand{flex:1 1 280px}
.footer-brand .logo{color:#fff;margin-bottom:18px}
.footer-brand p{font-size:13px;color:rgba(255,255,255,0.5);line-height:1.8;max-width:280px}
.footer-col{flex:1 1 160px}
.footer-col h4{
  color:rgba(255,255,255,0.5);
  font-size:12px;
  font-weight:700;
  letter-spacing:0.12em;
  text-transform:uppercase;
  margin-bottom:20px;
}
.footer-col a{
  display:block;
  color:rgba(255,255,255,0.75);
  font-size:14px;
  padding:5px 0;
  transition:color 0.2s;
  position:relative;
}
.footer-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;text-decoration-color:rgba(198,161,91,0.4)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.08);
  padding:24px 0;
  text-align:center;
  font-family:var(--font-num);
  font-size:12px;
  color:rgba(255,255,255,0.3);
}
.footer-bottom a{color:rgba(255,255,255,0.4);transition:color 0.2s}
.footer-bottom a:hover{color:var(--accent)}

/* 面包屑 */
.breadcrumb{
  padding:24px 0 0;
  font-family:var(--font-num);
  font-size:12px;
  color:var(--text-muted);
  display:flex;
  gap:6px;
  align-items:center;
}
.breadcrumb span{color:var(--text-muted)}
.breadcrumb a{color:var(--text-muted);transition:color 0.2s}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb i{font-style:normal;color:var(--border)}

/* 空态强调 */
.empty-fallback{text-align:center;padding:20px 0}

/* 滚动显现 */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity 0.5s ease, transform 0.5s ease;
}
.reveal.visible{opacity:1;transform:translateY(0)}

/* 响应式 */
@media (max-width:1023.98px){
  .hero h1{font-size:42px}
  .hero-visual{margin-top:24px}
  .reviews-grid{columns:2}
  .news-item{flex-wrap:wrap;gap:12px}
  .news-summary{max-width:100%}
  .news-meta{margin-left:auto}
}
@media (max-width:639.98px){
  .section-padding{padding:56px 0}
  .section-header h2{font-size:24px}
  .hero h1{font-size:32px}
  .hero-sub{font-size:15px}
  .hero-meta{gap:12px;flex-wrap:wrap}
  .reviews-grid{columns:1}
  .carousel-card{flex-basis:85%}
  .news-item{padding:18px 16px}
  .news-date{width:auto;display:flex;align-items:baseline;gap:4px}
  .news-body{flex:1 0 100%;margin-top:6px}
  .news-title{white-space:normal;font-size:15px}
  .news-summary{white-space:normal;font-size:12px}
  .download-btns .download-btn{width:100%;max-width:100%}
  .cta-download h2{font-size:26px}
  .site-footer{padding-top:56px}
  .footer-bottom{padding:20px 16px}
}
@media (max-width:1024px){
  .site-nav{display:none}
  .nav-toggle{display:flex}
  .nav-actions .search-box{display:none}
  .nav-actions .nav-btn{display:none}
  .drawer{display:none}
  .hero{min-height:auto}
}
@media (min-width:1024px){
  .drawer{display:none !important}
}

/* roulang page: category1 */
:root{
  --primary:#0B3B2E;
  --primary-hover:#145A46;
  --gold:#C6A15B;
  --gold-hover:#A98644;
  --bg:#F6F5F2;
  --card:#FFFFFF;
  --dark:#0D201A;
  --text:#1F2933;
  --text-weak:#6B7280;
  --border:#E5E2DC;
  --success:#2E8B6B;
  --r-card:12px;
  --r-btn:8px;
  --radius-badge:999px;
  --shadow:0 4px 20px rgba(0,0,0,0.05);
  --shadow-hover:0 8px 30px rgba(0,0,0,0.09);
  --transition:.2s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary);}
img{max-width:100%;display:block;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
ul,ol{list-style:none;}
h1,h2,h3,h4,h5,h6{line-height:1.3;color:var(--text);}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}

.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,0.96);
  backdrop-filter:blur(6px);
  height:76px;
  border-bottom:1px solid var(--border);
  transition:box-shadow .3s ease;
}
.site-header.scrolled{box-shadow:0 4px 16px rgba(0,0,0,0.06);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:100%;gap:24px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-0.01em;color:var(--text);white-space:nowrap;}
.logo-icon{width:32px;height:32px;border-radius:9px;background:var(--primary);display:inline-flex;align-items:center;justify-content:center;position:relative;flex-shrink:0;}
.logo-icon::before{content:"";width:14px;height:14px;border-radius:4px;background:var(--gold);transform:rotate(45deg);display:block;}
.logo:hover{color:var(--primary);}
.site-nav{display:flex;align-items:center;gap:28px;}
.site-nav a{font-size:15px;font-weight:500;color:var(--text);position:relative;padding:6px 2px;transition:color .25s ease;}
.site-nav a::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;}
.site-nav a:hover{color:var(--primary);}
.site-nav a:hover::after{transform:scaleX(1);}
.site-nav a.active{color:var(--primary);font-weight:600;}
.site-nav a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.search-box{display:flex;align-items:center;gap:8px;background:var(--bg);border:1px solid transparent;border-radius:999px;height:38px;padding:0 14px;width:200px;transition:width .3s ease,border-color .3s ease,box-shadow .3s ease;}
.search-box:focus-within{width:260px;border-color:var(--primary);box-shadow:0 0 0 3px rgba(11,59,46,0.08);}
.search-icon{width:16px;height:16px;color:var(--text-weak);flex-shrink:0;}
.search-input{border:none;background:transparent;font-size:13px;color:var(--text);width:100%;outline:none;}
.search-input::placeholder{color:#9AA3AD;}
.nav-btn{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 20px;background:var(--primary);color:#fff;border-radius:8px;font-size:14px;font-weight:600;transition:background .2s ease,transform .2s ease,box-shadow .2s ease;white-space:nowrap;}
.nav-btn:hover{background:var(--primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 4px 12px rgba(11,59,46,0.2);}
.nav-btn:active{transform:translateY(1px);box-shadow:none;}
.nav-toggle{display:none;width:44px;height:44px;border:none;background:transparent;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:0;}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;transition:transform .3s ease,opacity .3s ease;}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.category-hero{
  background:var(--bg) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  background-blend-mode:multiply;
  border-bottom:1px solid var(--border);
  padding:80px 0 72px;
  position:relative;
}
.category-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,0.94) 0%,rgba(246,245,242,0.88) 100%);pointer-events:none;}
.category-hero-inner{position:relative;max-width:760px;}
.tag-label{display:inline-block;font-size:11px;font-weight:700;letter-spacing:0.08em;color:var(--gold);text-transform:uppercase;margin-bottom:16px;}
.category-hero h1{font-size:44px;font-weight:800;letter-spacing:-0.02em;line-height:1.25;color:var(--primary);margin-bottom:16px;}
.category-hero p{font-size:16px;color:var(--text-weak);max-width:620px;line-height:1.8;}

.category-main{padding:72px 0 24px;}
.category-main .grid-x{row-gap:32px;}
.guide-block{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow);
  margin-bottom:32px;
  display:flex;
  align-items:stretch;
}
.guide-block.reverse{flex-direction:row-reverse;}
.guide-media{width:46%;overflow:hidden;position:relative;min-height:280px;}
.guide-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.guide-block:hover .guide-media img{transform:scale(1.03);}
.guide-content{width:54%;padding:40px 36px;display:flex;flex-direction:column;justify-content:center;}
.guide-content h2{font-size:24px;font-weight:800;color:var(--primary);margin-bottom:12px;line-height:1.4;}
.guide-content p{font-size:14px;color:var(--text-weak);line-height:1.8;margin-bottom:20px;}
.guide-list{display:flex;flex-direction:column;gap:10px;}
.guide-list li{position:relative;padding-left:18px;font-size:14px;color:var(--text);}
.guide-list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--gold);}
.guide-steps{counter-reset:step;display:flex;flex-direction:column;gap:10px;}
.guide-steps li{position:relative;padding-left:34px;font-size:14px;color:var(--text);line-height:1.7;}
.guide-steps li::before{counter-increment:step;content:counter(step);position:absolute;left:0;top:0;width:24px;height:24px;border-radius:50%;background:var(--primary);color:#fff;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;}

.side-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  padding:28px 24px;
  margin-bottom:24px;
}
.side-card h3{
  font-size:16px;
  font-weight:700;
  color:var(--primary);
  margin-bottom:16px;
  padding-bottom:12px;
  border-bottom:1px solid var(--border);
  position:relative;
}
.side-card h3::after{content:"";position:absolute;left:0;bottom:-1px;width:36px;height:2px;background:var(--gold);border-radius:2px;}
.side-links{display:flex;flex-direction:column;gap:4px;}
.side-links a{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-radius:8px;font-size:14px;color:var(--text);transition:background .2s ease,color .2s ease,padding-left .2s ease;}
.side-links a:hover{background:#F3F7F4;color:var(--primary);padding-left:16px;}
.side-links a i{font-size:12px;color:var(--gold);}
.faq-mini details{border-bottom:1px solid var(--border);padding:14px 0;}
.faq-mini details:last-child{border-bottom:none;}
.faq-mini summary{display:flex;align-items:flex-start;gap:10px;cursor:pointer;list-style:none;font-size:14px;font-weight:600;color:var(--text);padding:4px 0;}
.faq-mini summary::-webkit-details-marker{display:none;}
.faq-mini summary .q-mark{color:var(--gold);font-weight:800;font-size:15px;flex-shrink:0;}
.faq-mini summary .plus{margin-left:auto;color:var(--text-weak);transition:transform .3s ease;font-size:16px;flex-shrink:0;}
.faq-mini details[open] summary .plus{transform:rotate(45deg);}
.faq-mini .faq-answer{padding:10px 0 4px 26px;font-size:13px;color:var(--text-weak);line-height:1.75;}

.ver-strip{padding:24px 0 72px;}
.ver-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:28px;flex-wrap:wrap;}
.ver-head .tag-label{margin-bottom:0;}
.ver-head h2{font-size:28px;font-weight:800;color:var(--primary);margin:0;}
.ver-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.ver-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow);
  transition:box-shadow .2s ease,transform .2s ease;
}
.ver-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.ver-card .platform{font-size:14px;font-weight:700;color:var(--primary);display:flex;align-items:center;gap:8px;margin-bottom:8px;}
.ver-card .platform i{color:var(--gold);font-size:16px;}
.ver-card .version{font-family:"DIN Alternate","Roboto Mono",monospace;font-size:22px;font-weight:700;color:var(--text);}
.ver-card .ver-date{font-size:12px;color:var(--text-weak);margin-top:6px;}
.ver-more{text-align:right;margin-top:16px;}
.ver-more a{font-size:14px;color:var(--primary);font-weight:600;}
.ver-more a i{margin-left:6px;transition:transform .2s ease;}
.ver-more a:hover i{transform:translateX(4px);}

.category-cta{
  position:relative;
  background:var(--dark) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  background-blend-mode:overlay;
  padding:80px 0;
  text-align:center;
}
.category-cta::before{content:"";position:absolute;inset:0;background:rgba(13,32,26,0.84);}
.category-cta .container{position:relative;z-index:1;}
.category-cta h2{font-size:32px;font-weight:800;color:#fff;margin-bottom:12px;}
.category-cta h2::after{content:"";display:block;width:40px;height:2px;background:var(--gold);margin:16px auto 20px;}
.category-cta p{font-size:15px;color:rgba(255,255,255,0.75);margin-bottom:32px;}
.btn-group{display:flex;flex-wrap:wrap;justify-content:center;gap:16px;margin-bottom:20px;}
.btn-download{
  display:inline-flex;
  align-items:center;
  gap:12px;
  height:48px;
  padding:0 24px;
  background:#fff;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,0.85);
  box-shadow:0 2px 10px rgba(0,0,0,0.15);
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.btn-download i{font-size:20px;color:var(--primary);}
.btn-download .btn-text{text-align:left;line-height:1.25;}
.btn-download .btn-text strong{display:block;font-size:14px;color:var(--text);}
.btn-download .btn-text small{display:block;font-size:11px;color:var(--text-weak);}
.btn-download:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,0,0,0.25);}
.btn-download.gold{background:var(--gold);border-color:var(--gold);}
.btn-download.gold i,.btn-download.gold strong{color:#fff;}
.btn-download.gold small{color:rgba(255,255,255,0.85);}
.btn-download.gold:hover{background:var(--gold-hover);border-color:var(--gold-hover);transform:translateY(-3px) scale(1.02);}
.cta-hint{display:block;font-size:12px;color:rgba(255,255,255,0.55);margin-top:16px;}

.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,0.7);
  padding:64px 0 24px;
  border-top:1px solid rgba(255,255,255,0.08);
}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,0.08);margin-bottom:24px;}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand .logo .logo-icon{background:var(--primary);}
.footer-brand p{font-size:13px;color:rgba(255,255,255,0.5);line-height:1.7;max-width:280px;}
.footer-col h4{font-size:13px;color:rgba(255,255,255,0.4);font-weight:600;text-transform:uppercase;letter-spacing:0.06em;margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,0.75);padding:6px 0;transition:color .2s ease,padding-left .2s ease;}
.footer-col a:hover{color:var(--gold);padding-left:4px;}
.footer-bottom{text-align:center;font-size:12px;color:rgba(255,255,255,0.45);padding-top:8px;}

@media (max-width:1023px){
  .site-nav{
    position:fixed;
    top:76px;
    left:0;
    right:0;
    background:#fff;
    border-bottom:1px solid var(--border);
    flex-direction:column;
    align-items:flex-start;
    padding:24px 32px 32px;
    gap:18px;
    transform:translateY(-12px);
    opacity:0;
    pointer-events:none;
    transition:opacity .3s ease,transform .3s ease;
    box-shadow:0 20px 40px rgba(0,0,0,0.1);
    z-index:999;
  }
  .site-nav.open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .nav-toggle{display:flex;}
  .search-box{width:44px;justify-content:center;padding:0;}
  .search-box .search-input{display:none;}
  .search-box:focus-within{width:44px;}
  .nav-btn{padding:0 16px;font-size:13px;}
  .guide-block,.guide-block.reverse{flex-direction:column;}
  .guide-media{width:100%;min-height:220px;}
  .guide-content{width:100%;padding:28px 24px;}
  .ver-cards{grid-template-columns:1fr;}
  .category-hero h1{font-size:36px;}
}
@media (max-width:639px){
  .container{padding:0 20px;}
  .category-hero{padding:48px 0 40px;}
  .category-hero h1{font-size:30px;}
  .category-hero p{font-size:14px;}
  .category-main{padding:48px 0 16px;}
  .btn-group{flex-direction:column;align-items:stretch;}
  .btn-download{justify-content:center;width:100%;}
  .footer-top{grid-template-columns:1fr;gap:32px;}
  .site-nav{padding:20px;}
  .category-cta{padding:56px 0;}
  .category-cta h2{font-size:24px;}
  .nav-btn{display:none;}
}

/* roulang page: article */
/* ===== Design tokens ===== */
:root{
  --green-900:#0B3B2E;
  --green-800:#145A46;
  --green-soft:#F3F7F4;
  --gold-500:#C6A15B;
  --gold-600:#A98644;
  --gold-soft:rgba(198,161,91,.12);
  --bg-warm:#F6F5F2;
  --white:#FFFFFF;
  --dark-900:#0D201A;
  --text-main:#1F2933;
  --text-secondary:#6B7280;
  --text-light:#9CA3AF;
  --border:#E5E2DC;
  --success:#2E8B6B;
  --radius-xs:6px;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-pill:999px;
  --shadow-sm:0 4px 20px rgba(0,0,0,.05);
  --shadow-md:0 8px 30px rgba(0,0,0,.09);
  --shadow-lg:0 16px 48px rgba(0,0,0,.12);
  --font-sans:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"DIN Alternate","Roboto Mono","SF Mono",monospace;
  --transition-fast:.2s ease;
  --transition-mid:.3s ease;
  --space-section:96px;
  --space-section-md:72px;
  --space-section-sm:56px;
  --header-h:76px;
}

/* ===== Base ===== */
*,*::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-main);
  background:var(--bg-warm);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--transition-fast)}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--gold-500);
  outline-offset:2px;
}
button{cursor:pointer;border:none;background:none;font-family:inherit}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{margin:0;font-family:var(--font-sans);color:var(--text-main);line-height:1.3}
.container{
  max-width:1200px;
  width:100%;
  margin:0 auto;
  padding:0 24px;
}

/* ===== Buttons ===== */
.btn-primary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 28px;
  background:var(--green-900);
  color:#fff;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:700;
  border:1px solid transparent;
  transition:all var(--transition-fast);
  white-space:nowrap;
}
.btn-primary:hover{
  background:var(--green-800);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--shadow-md);
}
.btn-primary:active{transform:translateY(0)}

.dl-btn-group{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  justify-content:center;
}
.btn-download{
  display:inline-flex;
  align-items:center;
  gap:12px;
  height:48px;
  padding:0 20px;
  border-radius:var(--radius-sm);
  font-size:14px;
  font-weight:700;
  color:#fff;
  background:var(--green-900);
  border:1px solid transparent;
  transition:all var(--transition-fast);
  white-space:nowrap;
}
.btn-download:hover{
  background:var(--green-800);
  transform:translateY(-2px);
  box-shadow:var(--shadow-md);
}
.btn-download:active{transform:translateY(0)}
.btn-download .dl-icon{width:18px;height:18px;flex-shrink:0}
.btn-download .dl-text{display:inline-flex;flex-direction:column;align-items:flex-start;line-height:1.25}
.btn-download .dl-text strong{font-size:14px;font-weight:700;color:inherit}
.btn-download .dl-text small{font-size:11px;font-weight:400;color:rgba(255,255,255,.75)}
.btn-download-gold{
  background:var(--gold-500);
  color:var(--dark-900);
}
.btn-download-gold .dl-text small{color:rgba(13,32,26,.68)}
.btn-download-gold:hover{
  background:var(--gold-600);
  color:var(--dark-900);
  box-shadow:0 10px 30px rgba(0,0,0,.22);
}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  height:var(--header-h);
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--border);
  transition:box-shadow var(--transition-mid);
}
.site-header.scrolled{box-shadow:0 4px 16px rgba(0,0,0,.06)}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:var(--header-h);
  gap:20px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:800;
  color:var(--text-main);
  white-space:nowrap;
  flex-shrink:0;
  letter-spacing:-.01em;
}
.logo:hover{color:var(--green-900)}
.logo-icon{
  position:relative;
  width:32px;
  height:32px;
  border-radius:8px;
  background:var(--green-900);
  display:inline-block;
  flex-shrink:0;
}
.logo-icon::before{
  content:"";
  position:absolute;
  top:8px;
  left:8px;
  width:16px;
  height:16px;
  border-radius:4px;
  background:var(--gold-500);
}
.logo-icon::after{
  content:"";
  position:absolute;
  right:7px;
  bottom:7px;
  width:6px;
  height:6px;
  border-radius:2px;
  background:#fff;
}
.site-nav{
  display:flex;
  align-items:center;
  gap:2px;
  margin:0 auto;
}
.site-nav a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 16px;
  font-size:15px;
  font-weight:600;
  color:var(--text-main);
  border-radius:var(--radius-xs);
}
.site-nav a::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:0;
  height:2px;
  background:var(--green-900);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s ease;
}
.site-nav a:hover{color:var(--green-900)}
.site-nav a:hover::after{transform:scaleX(1)}
.site-nav a.active{color:var(--green-900);font-weight:700}
.site-nav a.active::after{transform:scaleX(1)}
.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
  position:relative;
}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  background:var(--bg-warm);
  border:1px solid var(--border);
  border-radius:var(--radius-pill);
  padding:0 14px;
  width:200px;
  height:40px;
  transition:width .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.search-box:focus-within{
  width:260px;
  border-color:var(--green-900);
  background:var(--white);
  box-shadow:0 0 0 3px rgba(11,59,46,.08);
}
.search-icon{width:15px;height:15px;color:var(--text-secondary);flex-shrink:0}
.search-input{
  border:none;
  outline:none;
  background:transparent;
  font-size:13px;
  color:var(--text-main);
  width:100%;
  min-width:0;
}
.search-input::-webkit-search-cancel-button{-webkit-appearance:none}
.nav-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:40px;
  padding:0 20px;
  background:var(--green-900);
  color:#fff;
  border-radius:var(--radius-sm);
  font-size:14px;
  font-weight:700;
  transition:all var(--transition-fast);
  white-space:nowrap;
}
.nav-btn:hover{
  background:var(--green-800);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--shadow-md);
}
.nav-btn:active{transform:translateY(0)}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  width:44px;
  height:44px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  background:var(--white);
  cursor:pointer;
  gap:5px;
  transition:border-color var(--transition-fast);
}
.nav-toggle:hover{border-color:var(--green-900)}
.nav-toggle span{
  display:block;
  width:20px;
  height:2px;
  background:var(--text-main);
  border-radius:2px;
  transition:transform .3s ease,opacity .3s ease;
}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-overlay{
  position:fixed;
  inset:var(--header-h) 0 0 0;
  background:rgba(13,32,26,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;
  z-index:98;
}
.nav-overlay.show{opacity:1;visibility:visible}

/* ===== Article Hero ===== */
.article-hero{
  position:relative;
  padding:56px 0 44px;
  background:
    linear-gradient(180deg,rgba(246,245,242,.95) 0%,rgba(231,239,234,.82) 100%),
    url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  border-bottom:1px solid var(--border);
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:12px;
  color:var(--text-secondary);
  margin-bottom:24px;
}
.breadcrumb a{color:var(--text-secondary);transition:color var(--transition-fast)}
.breadcrumb a:hover{color:var(--green-900)}
.crumb-sep{color:#C0BEB8;line-height:1}
.crumb-current{color:var(--text-main);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:480px}
.article-tag{
  display:inline-block;
  background:var(--gold-soft);
  color:var(--gold-600);
  font-size:12px;
  font-weight:700;
  padding:5px 14px;
  border-radius:var(--radius-pill);
  letter-spacing:.06em;
  margin-bottom:18px;
}
.article-title{
  font-size:42px;
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--text-main);
  margin-bottom:18px;
  max-width:760px;
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  font-size:13px;
  color:var(--text-secondary);
}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-icon{width:14px;height:14px;color:var(--gold-600)}
.meta-date{font-family:var(--font-mono);letter-spacing:.02em}
.meta-dot{width:3px;height:3px;border-radius:50%;background:var(--gold-500);flex-shrink:0}

/* ===== Article Section ===== */
.article-section{
  padding:48px 0 36px;
}
.article-body{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-sm);
  padding:48px;
  max-width:760px;
  margin:0 auto;
  font-size:16px;
  line-height:1.9;
  color:var(--text-main);
}
.article-body p{margin-bottom:24px}
.article-body p:last-child{margin-bottom:0}
.article-body h2{
  font-size:26px;
  font-weight:800;
  margin:40px 0 18px;
  letter-spacing:-.01em;
}
.article-body h3{
  font-size:20px;
  font-weight:600;
  margin:32px 0 14px;
  letter-spacing:-.01em;
}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0}
.article-body img{
  border-radius:var(--radius-sm);
  margin:24px auto;
  width:100%;
  height:auto;
}
.article-body blockquote{
  border-left:3px solid var(--gold-500);
  background:var(--gold-soft);
  padding:16px 24px;
  margin:24px 0;
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--text-secondary);
  font-size:15px;
}
.article-body ul,.article-body ol{
  margin:16px 0 24px;
  padding-left:24px;
}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:8px;padding-left:4px}
.article-body a{
  color:var(--green-900);
  border-bottom:1px solid rgba(11,59,46,.28);
  font-weight:500;
}
.article-body a:hover{color:var(--gold-600);border-bottom-color:var(--gold-500)}
.article-body code{
  background:var(--green-soft);
  border:1px solid var(--border);
  border-radius:4px;
  padding:2px 6px;
  font-family:var(--font-mono);
  font-size:13px;
}
.article-body pre{
  background:var(--dark-900);
  color:#D5DFD9;
  border-radius:var(--radius-sm);
  padding:20px;
  overflow-x:auto;
  margin:24px 0;
  line-height:1.7;
}
.article-body pre code{
  background:transparent;
  border:none;
  color:inherit;
  padding:0;
  font-size:13px;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:14px;
}
.article-body th,.article-body td{
  border:1px solid var(--border);
  padding:10px 14px;
  text-align:left;
}
.article-body th{
  background:var(--green-soft);
  font-weight:700;
}

/* ===== Post Nav ===== */
.article-post-nav{
  max-width:760px;
  margin:28px auto 0;
  padding:24px 0 0;
  border-top:1px solid var(--border);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
}
.post-nav-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--text-secondary);
  padding:9px 18px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  background:var(--white);
  transition:all var(--transition-fast);
}
.post-nav-link:hover{
  border-color:var(--green-900);
  color:var(--green-900);
  transform:translateY(-2px);
  box-shadow:var(--shadow-sm);
}
.post-nav-link:active{transform:translateY(0)}
.post-nav-arrow{width:14px;height:14px;flex-shrink:0}

/* ===== Not Found ===== */
.article-notfound{
  text-align:center;
  padding:64px 24px;
  background:var(--white);
  border:1px dashed var(--gold-500);
  border-radius:var(--radius-md);
  max-width:760px;
  margin:0 auto;
}
.article-notfound .nf-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:64px;
  height:64px;
  border-radius:50%;
  background:var(--gold-soft);
  color:var(--gold-600);
  margin-bottom:20px;
}
.article-notfound .nf-icon svg{width:30px;height:30px}
.article-notfound h2{font-size:24px;font-weight:800;margin-bottom:10px}
.article-notfound p{font-size:14px;color:var(--text-secondary);margin-bottom:24px}

/* ===== Related ===== */
.related-section{
  padding:var(--space-section) 0;
  background:var(--white);
  border-top:1px solid var(--border);
}
.section-header{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  margin-bottom:36px;
}
.section-label{
  display:inline-block;
  font-size:12px;
  font-weight:800;
  letter-spacing:.14em;
  color:var(--gold-600);
  margin-bottom:8px;
}
.section-title{
  font-size:32px;
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.2;
  color:var(--text-main);
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.related-card{
  display:flex;
  align-items:center;
  gap:16px;
  background:var(--bg-warm);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:12px;
  transition:all .25s ease;
  overflow:hidden;
}
.related-card:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-2px);
  border-color:transparent;
  background:var(--white);
}
.related-card:active{transform:translateY(0)}
.related-thumb{
  width:132px;
  height:88px;
  border-radius:var(--radius-sm);
  overflow:hidden;
  flex-shrink:0;
  background:var(--green-soft);
}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.related-card:hover .related-thumb img{transform:scale(1.05)}
.related-info{min-width:0;display:flex;flex-direction:column;gap:6px}
.related-info h3{
  font-size:15px;
  font-weight:700;
  line-height:1.45;
  color:var(--text-main);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color var(--transition-fast);
}
.related-card:hover .related-info h3{color:var(--green-900)}
.related-date{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--text-secondary);
}

/* ===== Article CTA ===== */
.article-cta{
  padding:72px 0 80px;
  background:var(--dark-900);
  position:relative;
  overflow:hidden;
}
.article-cta::before{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  opacity:.12;
}
.article-cta-inner{
  position:relative;
  text-align:center;
  max-width:760px;
  margin:0 auto;
}
.article-cta .section-label{color:var(--gold-500)}
.article-cta h2{
  color:#fff;
  font-size:28px;
  font-weight:800;
  letter-spacing:-.02em;
  margin-bottom:12px;
}
.article-cta p{
  color:rgba(255,255,255,.72);
  font-size:14px;
  margin-bottom:28px;
}
.article-cta .dl-btn-group{margin-bottom:20px}
.cta-tip{
  margin-top:16px !important;
  font-family:var(--font-mono);
  font-size:12px !important;
  color:rgba(255,255,255,.5) !important;
  letter-spacing:.02em;
}

/* ===== Footer ===== */
.site-footer{
  background:var(--dark-900);
  padding:64px 0 0;
}
.footer-top{
  display:grid;
  grid-template-columns:2.2fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand .logo{color:#fff}
.footer-brand p{
  margin:16px 0 0;
  font-size:13px;
  line-height:1.7;
  color:rgba(255,255,255,.52);
  max-width:300px;
}
.footer-col h4{
  color:rgba(255,255,255,.42);
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  margin-bottom:16px;
}
.footer-col a{
  display:block;
  color:rgba(255,255,255,.8);
  font-size:14px;
  padding:6px 0;
  transition:color .2s ease;
}
.footer-col a:hover{color:var(--gold-500)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:18px 0;
  text-align:center;
}
.footer-bottom p{
  font-size:12px;
  color:rgba(255,255,255,.5);
}

/* ===== Reveal ===== */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .4s ease,transform .4s ease;
}
.reveal.revealed{
  opacity:1;
  transform:translateY(0);
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ===== Responsive ===== */
@media (max-width:1024px){
  :root{--space-section:var(--space-section-md)}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1.6fr 1fr 1fr;gap:32px}
  .search-box{width:180px}
  .search-box:focus-within{width:220px}
}
@media (max-width:768px){
  .search-box{width:160px}
  .search-box:focus-within{width:200px}
  .site-nav a{padding:0 10px;font-size:14px}
  .nav-btn{padding:0 14px}
  .article-body{padding:36px}
}
@media (max-width:639px){
  :root{--space-section:var(--space-section-sm)}
  .site-nav{
    position:fixed;
    top:var(--header-h);
    left:0;
    right:0;
    bottom:0;
    height:calc(100vh - var(--header-h));
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    background:var(--white);
    padding:20px 16px 32px;
    gap:4px;
    margin:0;
    z-index:96;
    transform:translateX(100%);
    transition:transform .3s ease;
    border-top:1px solid var(--border);
    box-shadow:0 20px 40px rgba(0,0,0,.08);
    overflow-y:auto;
  }
  .site-nav.open{transform:translateX(0)}
  .site-nav a{
    height:50px;
    font-size:18px;
    padding:0 12px;
    border-radius:var(--radius-sm);
  }
  .site-nav a::after{display:none}
  .site-nav a:hover{background:var(--green-soft)}
  .site-nav a.active{background:var(--green-soft);color:var(--green-900)}
  .site-nav a:active{background:var(--gold-soft)}
  .nav-toggle{display:flex}
  .nav-btn{display:none}
  .nav-actions{gap:8px}
  .search-box{
    width:40px;
    height:40px;
    padding:0;
    justify-content:center;
    border-radius:50%;
    background:var(--bg-warm);
  }
  .search-box:focus-within{
    width:40px;
    box-shadow:none;
  }
  .search-box .search-input{
    position:absolute;
    top:calc(100% + 6px);
    right:0;
    width:calc(100vw - 48px);
    max-width:300px;
    height:44px;
    background:var(--white);
    border:1px solid var(--border);
    border-radius:var(--radius-sm);
    box-shadow:var(--shadow-md);
    padding:0 14px;
    font-size:14px;
    display:none;
  }
  .search-box.expanded .search-input{display:block}
  .search-box .search-input::placeholder{color:var(--text-light)}
  .article-hero{padding:40px 0 36px}
  .article-title{font-size:30px;letter-spacing:-.015em}
  .article-meta{gap:10px;font-size:12px}
  .article-body{padding:24px 20px;font-size:15px;line-height:1.85}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .article-post-nav{padding:20px 0 0}
  .related-grid{grid-template-columns:1fr;gap:14px}
  .related-thumb{width:110px;height:76px}
  .related-info h3{font-size:14px}
  .section-title{font-size:24px}
  .article-cta{padding:56px 0 64px}
  .article-cta h2{font-size:23px}
  .dl-btn-group{flex-direction:column;align-items:stretch;width:100%}
  .btn-download{justify-content:center;width:100%}
  .footer-top{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-brand p{max-width:100%}
  .footer-col a{font-size:15px;padding:7px 0}
  .breadcrumb .crumb-current{max-width:200px}
}

.reveal{opacity:1;transform:none}