/* roulang page: index */
:root{
  --primary:#0D3B2E;
  --primary-hover:#14523F;
  --accent:#C8F169;
  --accent-hover:#D6FA86;
  --bg:#F4EFE4;
  --surface:#FFFFFF;
  --surface-2:#FBF7EE;
  --ink:#15201B;
  --muted:#5B665F;
  --line:#DAD2C2;
  --amber:#E7A33A;
  --danger:#B3261E;
  --radius-card:18px;
  --radius-img:14px;
  --shadow-sm:0 1px 2px rgba(13,59,46,.06);
  --shadow-md:0 14px 34px rgba(13,59,46,.10);
  --shadow-lg:0 24px 60px rgba(13,59,46,.14);
  --ease:cubic-bezier(.2,.8,.2,1);
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:28px;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;}
a:hover{color:var(--primary-hover);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
::selection{background:var(--accent);color:var(--primary);}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:76px 0;}
.section-tight{padding:56px 0;}
.section-head{display:flex;flex-direction:column;gap:10px;margin-bottom:32px;max-width:760px;}
.section-head h2{font-size:32px;line-height:40px;font-weight:800;letter-spacing:-.4px;color:var(--primary);}
.section-head p{color:var(--muted);font-size:15px;line-height:26px;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-head-row h2{font-size:32px;line-height:40px;font-weight:800;letter-spacing:-.4px;color:var(--primary);}
.section-head-row p{color:var(--muted);font-size:15px;margin-top:8px;}

/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:60;background:var(--bg);border-bottom:1px solid var(--line);}
.topbar{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{position:relative;width:36px;height:36px;border-radius:10px;background:var(--primary);flex-shrink:0;overflow:hidden;}
.brand-mark::before{content:"";position:absolute;left:8px;top:7px;width:12px;height:12px;border:2.5px solid var(--accent);border-radius:50% 50% 50% 0;transform:rotate(-45deg);}
.brand-mark::after{content:"";position:absolute;right:6px;bottom:6px;width:14px;height:3px;background:var(--accent);border-radius:2px;box-shadow:0 -6px 0 rgba(200,241,105,.5);}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-title{font-size:16px;font-weight:800;color:var(--primary);letter-spacing:-.2px;}
.brand-sub{font-size:11px;font-weight:600;color:var(--muted);letter-spacing:1.5px;}
.search{position:relative;display:flex;align-items:center;flex:1;max-width:340px;margin-left:8px;}
.search input{
  width:100%;height:44px;padding:0 16px 0 42px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink);font-size:14px;transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.search input::placeholder{color:#8C948E;}
.search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(200,241,105,.35);}
.search svg{position:absolute;left:14px;width:18px;height:18px;stroke:var(--muted);fill:none;stroke-width:2;pointer-events:none;}
.tool-group{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0;}
.icon-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--primary);
  cursor:pointer;transition:background 180ms var(--ease),border-color 180ms var(--ease),transform 180ms var(--ease);
}
.icon-btn:hover{background:#E9F2E4;border-color:rgba(13,59,46,.28);transform:translateY(-1px);}
.icon-btn.is-on{background:var(--accent);border-color:var(--accent);}

.tabs{display:flex;align-items:center;gap:6px;height:52px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.tabs::-webkit-scrollbar{display:none;}
.tab{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  font-size:14px;font-weight:500;color:#3C4A42;white-space:nowrap;
  transition:background 180ms var(--ease),color 180ms var(--ease);
}
.tab:hover{background:#E7F0E3;color:var(--primary);}
.tab.active{background:var(--accent);color:var(--primary);font-weight:700;}
.tab.active::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--primary);margin-right:8px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease),transform 180ms var(--ease),box-shadow 180ms var(--ease);
}
.btn-sm{height:44px;padding:0 20px;font-size:14px;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-sm);}
.btn-accent{background:var(--accent);color:var(--primary);}
.btn-accent:hover{background:var(--accent-hover);color:var(--primary);transform:translateY(-1px);}
.btn-ghost{background:transparent;border-color:var(--primary);color:var(--primary);}
.btn-ghost:hover{background:#E9F2E4;color:var(--primary);}
.btn-light{background:#fff;color:var(--primary);}
.btn-light:hover{background:#EAF3EC;color:var(--primary);}
.btn-outline-light{background:transparent;border-color:rgba(234,243,236,.6);color:#EAF3EC;}
.btn-outline-light:hover{background:rgba(234,243,236,.12);color:#fff;border-color:var(--accent);}
.btn .arrow{transition:transform 180ms var(--ease);}
.btn:hover .arrow{transform:translateX(3px);}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;padding:64px 0 56px;
  background:
    radial-gradient(880px 420px at 88% -12%, rgba(200,241,105,.22), transparent 70%),
    radial-gradient(560px 320px at -8% 110%, rgba(231,163,58,.10), transparent 70%),
    var(--bg);
}
.hero-deco{
  position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(115deg, rgba(13,59,46,.06) 0 2px, transparent 2px 24px);
  -webkit-mask-image:linear-gradient(to bottom, rgba(0,0,0,.95), transparent 76%);
  mask-image:linear-gradient(to bottom, rgba(0,0,0,.95), transparent 76%);
}
.hero .shell{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.42fr) minmax(0,1fr);gap:48px;align-items:center;}
.topic-badge{display:inline-flex;align-items:center;gap:10px;padding:6px 14px 6px 6px;border-radius:999px;background:var(--surface);border:1px solid var(--line);margin-bottom:22px;}
.topic-badge .num{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:6px;background:var(--primary);color:var(--accent);font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.5px;}
.topic-badge .txt{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.5px;}
.hero-title{font-size:44px;line-height:56px;font-weight:800;letter-spacing:-.8px;color:var(--primary);max-width:20em;}
.hero-sub{margin-top:18px;font-size:16px;line-height:28px;color:var(--muted);max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px;}
.chips li{padding:6px 14px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);font-size:13px;color:#3C4A42;}
.hero-figure{position:relative;border-radius:var(--radius-card);}
.hero-figure::after{content:"";position:absolute;right:-12px;bottom:-12px;width:130px;height:130px;border-radius:16px;background:var(--accent);z-index:0;}
.hero-figure img{position:relative;z-index:1;width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);border:1px solid var(--line);box-shadow:var(--shadow-md);background:var(--surface-2);}
.hero-figure .plate{position:absolute;z-index:2;left:16px;top:16px;padding:6px 10px;border-radius:4px;background:var(--primary);color:var(--accent);font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.8px;}

/* ---------- stat bar ---------- */
.statbar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface-2);}
.statbar-inner{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;}
.stat{padding:24px 20px;display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line);}
.stat:first-child{border-left:none;padding-left:0;}
.stat-num{font-family:var(--mono);font-size:22px;font-weight:600;color:var(--primary);letter-spacing:-.5px;}
.stat-label{font-size:12px;color:var(--muted);letter-spacing:.5px;}

/* ---------- catalog ---------- */
.catalog-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 48px;}
.catalog-item{
  display:flex;align-items:center;gap:16px;padding:18px 12px 18px 4px;border-top:1px solid var(--line);
  color:var(--ink);transition:background 180ms var(--ease),padding 180ms var(--ease);
}
.catalog-item:hover{background:var(--surface-2);color:var(--ink);padding-left:12px;}
.catalog-num{
  flex-shrink:0;width:40px;height:28px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:4px;background:rgba(13,59,46,.07);color:var(--primary);
  font-family:var(--mono);font-size:13px;font-weight:600;
}
.catalog-main{display:flex;flex-direction:column;gap:2px;min-width:0;}
.catalog-main strong{font-size:16px;font-weight:700;color:var(--primary);}
.catalog-main em{font-style:normal;font-size:13px;line-height:22px;color:var(--muted);overflow:hidden;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;}
.catalog-count{flex-shrink:0;margin-left:auto;font-family:var(--mono);font-size:12px;color:var(--amber);background:rgba(231,163,58,.12);padding:3px 8px;border-radius:4px;}
.catalog-arrow{flex-shrink:0;color:var(--primary);transition:transform 180ms var(--ease);}
.catalog-item:hover .catalog-arrow{transform:translateX(3px);}

/* ---------- cards ---------- */
.card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;color:var(--ink);transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:rgba(13,59,46,.28);color:var(--ink);}
.card-media{overflow:hidden;background:var(--surface-2);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 260ms var(--ease);}
.card:hover .card-media img{transform:scale(1.02);}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;}
.card-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12px;color:var(--muted);}
.badge{padding:3px 10px;border-radius:4px;font-size:12px;font-weight:600;letter-spacing:.3px;}
.badge-green{background:#E7F0E3;color:var(--primary);}
.badge-amber{background:rgba(231,163,58,.16);color:#7A4E0C;}
.mono{font-family:var(--mono);font-size:12px;font-weight:600;color:var(--muted);}
.card-title{font-size:22px;line-height:30px;font-weight:700;color:var(--primary);letter-spacing:-.2px;}
.card-desc{font-size:14px;line-height:24px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-link{margin-top:2px;font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.card-link .arrow{transition:transform 180ms var(--ease);}
.card:hover .card-link .arrow{transform:translateX(3px);}

.feature-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:24px;}
.card-lg .card-media img{aspect-ratio:16/9;}
.card-lg .card-title{font-size:24px;line-height:32px;}
.card-lg .card-desc{-webkit-line-clamp:3;}
.side-stack{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.card-sm{display:grid;grid-template-columns:120px minmax(0,1fr);}
.card-sm .card-media img{height:100%;aspect-ratio:1/1;}
.card-sm .card-body{padding:18px 20px;gap:8px;}
.card-sm .card-title{font-size:17px;line-height:25px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-sm .card-desc{-webkit-line-clamp:2;font-size:13px;line-height:22px;}

.news-list{margin-top:24px;border-top:1px solid var(--line);}
.news-row{
  display:grid;grid-template-columns:86px minmax(0,1fr) 28px;align-items:center;gap:20px;
  padding:18px 10px 18px 4px;border-bottom:1px solid var(--line);color:var(--ink);
  transition:background 180ms var(--ease),padding 180ms var(--ease);
}
.news-row:hover{background:var(--surface-2);color:var(--ink);padding-left:12px;}
.news-date{font-family:var(--mono);font-size:13px;font-weight:600;color:var(--amber);}
.news-body{display:flex;flex-direction:column;gap:4px;min-width:0;}
.news-title{font-size:17px;line-height:26px;font-weight:700;color:var(--primary);}
.news-desc{font-size:13px;line-height:22px;color:var(--muted);overflow:hidden;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;}
.news-tags{display:flex;gap:8px;align-items:center;font-size:12px;color:var(--muted);}
.news-arrow{color:var(--primary);transition:transform 180ms var(--ease);}
.news-row:hover .news-arrow{transform:translateX(3px);}

/* ---------- cms list ---------- */
.cms-list{border-top:1px solid var(--line);}
.cms-item{
  display:grid;grid-template-columns:minmax(0,1fr) 120px 28px;align-items:center;gap:20px;
  padding:20px 12px 20px 4px;border-bottom:1px solid var(--line);color:var(--ink);
  transition:background 180ms var(--ease),padding 180ms var(--ease);
}
.cms-item:hover{background:var(--surface-2);color:var(--ink);padding-left:14px;}
.cms-body{display:flex;flex-direction:column;gap:6px;min-width:0;}
.cms-title{font-size:17px;line-height:26px;font-weight:700;color:var(--primary);}
.cms-desc{font-size:13px;line-height:22px;color:var(--muted);overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}
.cms-side{display:flex;flex-direction:column;align-items:flex-end;gap:6px;}
.cms-arrow{color:var(--primary);transition:transform 180ms var(--ease);}
.cms-item:hover .cms-arrow{transform:translateX(3px);}
.empty-state{
  margin-top:8px;min-height:160px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  background:var(--surface-2);border:1px dashed var(--line);border-radius:var(--radius-card);padding:32px 20px;text-align:center;
}
.empty-state strong{font-size:16px;color:var(--primary);}
.empty-state span{font-size:14px;color:var(--muted);}

/* ---------- related scroll ---------- */
.scroll-x{display:flex;gap:20px;overflow-x:auto;padding-bottom:12px;scroll-snap-type:x mandatory;scrollbar-width:none;-ms-overflow-style:none;}
.scroll-x::-webkit-scrollbar{display:none;}
.scroll-card{flex:0 0 280px;scroll-snap-align:start;}
.scroll-card .card-media img{aspect-ratio:16/10;}
.scroll-card .card-body{padding:16px 18px 18px;gap:8px;}
.scroll-card .card-title{font-size:16px;line-height:24px;}
.scroll-card .card-desc{font-size:13px;line-height:22px;}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:17px;line-height:26px;font-weight:600;color:var(--primary);
  transition:color 180ms var(--ease),background 180ms var(--ease);
}
.faq-q:hover{color:var(--primary-hover);background:var(--surface-2);}
.faq-icon{
  flex-shrink:0;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);background:var(--surface);
  display:inline-flex;align-items:center;justify-content:center;position:relative;transition:transform 180ms var(--ease),background 180ms var(--ease);
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:opacity 180ms var(--ease),transform 180ms var(--ease);}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;}
.faq-item.open .faq-icon{background:var(--accent);border-color:var(--accent);transform:rotate(180deg);}
.faq-item.open .faq-icon::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms var(--ease);}
.faq-a-inner{padding:0 4px 22px 20px;border-left:3px solid var(--accent);margin-left:2px;}
.faq-a-inner p{font-size:15px;line-height:26px;color:var(--muted);}
.faq-item.open .faq-a{max-height:360px;}
.faq-item.open .faq-q{background:var(--surface-2);}

/* ---------- CTA ---------- */
.cta-bar{
  position:relative;overflow:hidden;border-radius:20px;background:var(--primary);color:#EAF3EC;
  padding:44px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-bar::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(105deg, rgba(200,241,105,.10) 0 2px, transparent 2px 26px);
}
.cta-bar::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:rgba(200,241,105,.10);}
.cta-copy{position:relative;z-index:1;max-width:560px;}
.cta-copy h2{font-size:28px;line-height:38px;font-weight:800;color:#fff;letter-spacing:-.4px;}
.cta-copy p{margin-top:10px;font-size:15px;line-height:26px;color:#B8C9BE;}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-foot{margin-top:0;background:var(--primary);color:#EAF3EC;border-top:4px solid var(--accent);}
.foot-main{padding:64px 0 40px;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.foot-brand .brand-title{color:#fff;}
.foot-brand .brand-sub{color:#B8C9BE;}
.foot-brand p{margin-top:16px;font-size:14px;line-height:24px;color:#B8C9BE;max-width:28em;}
.foot-col h3{font-size:14px;font-weight:700;color:#fff;letter-spacing:.5px;margin-bottom:16px;}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col a{font-size:14px;color:#B8C9BE;transition:color 180ms var(--ease);}
.foot-col a:hover{color:var(--accent);}
.foot-note{font-size:14px;line-height:24px;color:#B8C9BE;}
.foot-note strong{color:#fff;font-weight:600;}
.foot-bottom{border-top:1px solid rgba(234,243,236,.16);padding:18px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#9FB3A7;}
.foot-bottom a{color:#9FB3A7;}
.foot-bottom a:hover{color:var(--accent);}

/* ---------- toast ---------- */
.toast{
  position:fixed;left:50%;bottom:36px;transform:translate(-50%,16px);
  background:var(--primary);color:#fff;padding:12px 22px;border-radius:999px;font-size:14px;
  box-shadow:var(--shadow-md);opacity:0;pointer-events:none;z-index:99;
  transition:opacity 200ms var(--ease),transform 200ms var(--ease);
}
.toast.show{opacity:1;transform:translate(-50%,0);}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-figure{max-width:560px;}
  .feature-grid{grid-template-columns:1fr;}
  .side-stack{grid-template-rows:auto;grid-template-columns:1fr 1fr;}
}
@media (max-width:1024px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .hero-title{font-size:38px;line-height:50px;}
}
@media (max-width:900px){
  .search{display:none;}
  .catalog-grid{grid-template-columns:1fr;gap:0;}
  .statbar-inner{grid-template-columns:1fr 1fr;}
  .stat:nth-child(3){border-left:none;padding-left:0;}
  .stat{border-top:1px solid var(--line);}
  .stat:nth-child(1),.stat:nth-child(2){border-top:none;}
  .cms-item{grid-template-columns:minmax(0,1fr) 28px;}
  .cms-side{display:none;}
}
@media (max-width:768px){
  .shell{padding:0 20px;}
  .section{padding:52px 0;}
  .section-tight{padding:44px 0;}
  .topbar{height:64px;gap:12px;}
  .tabs{height:48px;}
  .hero{padding:44px 0 40px;}
  .hero-title{font-size:32px;line-height:40px;letter-spacing:-.4px;}
  .hero-sub{font-size:15px;line-height:26px;}
  .section-head h2,.section-head-row h2{font-size:26px;line-height:34px;}
  .card-lg .card-title{font-size:20px;line-height:28px;}
  .side-stack{grid-template-columns:1fr;}
  .card-sm{grid-template-columns:104px minmax(0,1fr);}
  .news-row{grid-template-columns:64px minmax(0,1fr) 22px;gap:12px;}
  .news-date{font-size:12px;}
  .cta-bar{padding:32px 24px;border-radius:18px;}
  .cta-copy h2{font-size:22px;line-height:32px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .faq-q{font-size:16px;line-height:24px;min-height:56px;padding:18px 2px;}
  .scroll-card{flex:0 0 250px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:520px){
  .brand-title{font-size:14px;}
  .brand-sub{font-size:10px;letter-spacing:1px;}
  .brand-mark{width:32px;height:32px;}
  .tool-group .icon-btn{display:none;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .statbar-inner{grid-template-columns:1fr;}
  .stat{padding:16px 0;border-left:none;border-top:1px solid var(--line);}
  .stat:first-child{border-top:none;}
  .stat-num{font-size:20px;}
  .catalog-count{display:none;}
  .card-body{padding:18px 18px 20px;}
  .card-title{font-size:19px;line-height:27px;}
}

/* roulang page: article */
:root{
  --primary:#0D3B2E;
  --primary-hover:#14523F;
  --accent:#C8F169;
  --accent-hover:#D6FA86;
  --bg:#F4EFE4;
  --surface:#FFFFFF;
  --surface-2:#FBF7EE;
  --ink:#15201B;
  --muted:#5B665F;
  --line:#DAD2C2;
  --amber:#E7A33A;
  --danger:#B3261E;
  --r-card:18px;
  --r-img:14px;
  --sh-1:0 1px 2px rgba(13,59,46,.06);
  --sh-2:0 14px 34px rgba(13,59,46,.10);
  --sh-3:0 24px 60px rgba(13,59,46,.14);
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:28px;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--primary);text-decoration:none;}
button{font:inherit;color:inherit;}
input{font:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:600;}

/* ============ header ============ */
.site-head{position:sticky;top:0;z-index:60;background:var(--bg);border-bottom:1px solid var(--line);}
.topbar{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{position:relative;width:38px;height:38px;border-radius:11px;background:var(--primary);flex-shrink:0;}
.brand-mark::before{content:"";position:absolute;top:8px;left:12px;width:14px;height:14px;border-radius:50% 50% 50% 0;transform:rotate(-45deg);background:var(--accent);}
.brand-mark::after{content:"";position:absolute;left:7px;right:7px;bottom:8px;height:3px;border-radius:2px;background:var(--accent);opacity:.5;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-title{font-size:15px;font-weight:800;color:var(--primary);letter-spacing:.01em;}
.brand-sub{font-size:11px;font-weight:600;color:var(--muted);letter-spacing:.16em;}
.search{position:relative;display:flex;align-items:center;flex:0 1 320px;}
.search svg{position:absolute;left:14px;width:18px;height:18px;fill:none;stroke:var(--muted);stroke-width:2;stroke-linecap:round;}
.search input{width:100%;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);padding:0 14px 0 42px;font-size:14px;color:var(--ink);transition:border-color 180ms,box-shadow 180ms;}
.search input::placeholder{color:#93A09A;}
.search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(200,241,105,.45);}
.tool-group{margin-left:auto;display:flex;align-items:center;gap:10px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:999px;border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;transition:background 180ms cubic-bezier(.2,.8,.2,1),transform 180ms cubic-bezier(.2,.8,.2,1),box-shadow 180ms,color 180ms;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-accent{background:var(--accent);color:var(--primary);}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-1px);}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);}
.btn-ghost{background:transparent;border-color:var(--primary);color:var(--primary);}
.btn-ghost:hover{background:#E9F2E4;}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;}
.icon-btn{width:40px;height:40px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--primary);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background 180ms,border-color 180ms,transform 180ms;}
.icon-btn:hover{background:#E7F0E3;border-color:var(--primary);transform:translateY(-1px);}
.icon-btn.is-on{background:var(--accent);border-color:var(--accent);}
.tabs{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scrollbar-width:none;}
.tabs::-webkit-scrollbar{display:none;}
.tab{position:relative;flex:0 0 auto;padding:8px 18px;border-radius:999px;font-size:14px;font-weight:600;color:var(--muted);white-space:nowrap;transition:background 180ms,color 180ms;}
.tab:hover{background:#E7F0E3;color:var(--primary);}
.tab.active{background:var(--accent);color:var(--primary);}
.tab.active::before{content:"";position:absolute;left:6px;top:50%;transform:translateY(-50%);width:3px;height:16px;border-radius:2px;background:var(--primary);}

/* ============ breadcrumbs ============ */
.crumbs{display:flex;align-items:center;gap:8px;padding-top:22px;padding-bottom:6px;font-size:13px;color:var(--muted);flex-wrap:wrap;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--primary);text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:3px;}
.crumbs .sep{opacity:.55;}
.crumbs .current{color:var(--ink);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ article head ============ */
.post-head{padding:26px 0 30px;}
.post-tag{display:inline-block;padding:4px 11px;border-radius:4px;background:#E7F0E3;color:var(--primary);font-size:12px;font-weight:700;letter-spacing:.04em;}
.post-title{margin-top:16px;font-size:44px;line-height:56px;font-weight:800;letter-spacing:-.01em;color:var(--primary);}
.post-summary{margin-top:16px;max-width:760px;font-size:17px;line-height:30px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.meta-bar{display:flex;align-items:center;gap:26px;flex-wrap:wrap;margin-top:24px;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:13px;color:var(--muted);}
.meta-bar .k{font-size:12px;color:#8A968F;margin-right:6px;}
.meta-bar .v{color:var(--ink);font-weight:600;}
.meta-bar .time .v{font-family:var(--mono);font-variant-numeric:tabular-nums;}
.post-actions{display:flex;align-items:center;gap:10px;margin-top:20px;flex-wrap:wrap;}

/* ============ article layout ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;padding:38px 0 0;}
.article-main{min-width:0;}
.article-body{font-size:16px;line-height:28px;color:var(--ink);max-width:760px;}
.article-body p{margin:0 0 20px;}
.article-body h2{font-size:24px;line-height:34px;font-weight:700;color:var(--primary);margin:40px 0 16px;padding-bottom:10px;border-bottom:1px solid var(--line);}
.article-body h3{font-size:20px;line-height:30px;font-weight:700;color:var(--ink);margin:30px 0 12px;}
.article-body h4{font-size:17px;line-height:26px;font-weight:700;margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;line-height:1.75;}
.article-body li{margin-bottom:8px;}
.article-body li::marker{color:var(--primary);}
.article-body a{color:var(--primary);text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:3px;}
.article-body a:hover{color:var(--primary-hover);text-decoration-color:var(--primary);}
.article-body strong{font-weight:700;}
.article-body blockquote{margin:26px 0;padding:18px 22px;background:var(--surface-2);border-left:4px solid var(--accent);border-radius:0 12px 12px 0;color:var(--muted);font-size:15px;line-height:27px;}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);border:1px solid var(--line);margin:26px 0;background:var(--surface-2);}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;font-size:14px;line-height:24px;margin:22px 0;display:block;overflow-x:auto;white-space:nowrap;}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top;}
.article-body th{background:var(--surface-2);font-weight:700;color:var(--primary);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

/* ============ aside ============ */
.article-aside{align-self:start;}
@media (min-width:1024px){
  .aside-sticky{position:sticky;top:96px;}
}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1);margin-bottom:18px;}
.side-title{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:800;color:var(--primary);letter-spacing:.08em;margin-bottom:12px;}
.side-title::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--accent);}
.side-list{list-style:none;}
.side-list li+li{border-top:1px solid var(--line);}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 0;font-size:14px;color:var(--ink);transition:color 160ms;}
.side-list a:hover{color:var(--primary);}
.side-list .arrow{color:var(--muted);transition:transform 180ms,color 180ms;flex:0 0 auto;}
.side-list a:hover .arrow{transform:translateX(3px);color:var(--primary);}
.side-note{font-size:13px;line-height:24px;color:var(--muted);}
.side-note strong{color:var(--primary);}
.side-card .btn{width:100%;margin-top:14px;}
.check-list{list-style:none;font-size:13px;line-height:24px;color:var(--muted);}
.check-list li{position:relative;padding-left:18px;margin-bottom:8px;}
.check-list li::before{content:"";position:absolute;left:2px;top:9px;width:6px;height:6px;border-radius:2px;background:var(--accent);}

/* ============ empty ============ */
.empty-box{background:var(--surface-2);border:1px dashed var(--line);border-radius:var(--r-card);padding:44px 28px;text-align:center;}
.empty-box h2{font-size:20px;line-height:30px;font-weight:700;color:var(--primary);}
.empty-box p{margin-top:10px;font-size:14px;line-height:26px;color:var(--muted);}
.empty-box .btn{margin-top:22px;}

/* ============ sections ============ */
.section{padding:72px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap;}
.section-head h2{font-size:32px;line-height:40px;font-weight:800;color:var(--primary);letter-spacing:-.01em;}
.section-head p{margin-top:8px;font-size:14px;color:var(--muted);max-width:60ch;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}
.link-more span.arr{transition:transform 180ms;}
.link-more:hover span.arr{transform:translateX(3px);}
.link-more:hover{text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:4px;}

.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rec-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform 180ms,border-color 180ms,box-shadow 180ms;}
.rec-card:hover{transform:translateY(-2px);border-color:rgba(13,59,46,.28);box-shadow:var(--sh-2);}
.rec-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--surface-2);border-bottom:1px solid var(--line);}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 300ms;}
.rec-card:hover .rec-thumb img{transform:scale(1.02);}
.rec-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rec-badge{align-self:flex-start;padding:3px 10px;border-radius:4px;background:#E7F0E3;color:var(--primary);font-size:12px;font-weight:700;}
.rec-badge.alt{background:#FBEED6;color:#7A5410;}
.rec-body h3{font-size:18px;line-height:26px;font-weight:700;color:var(--ink);}
.rec-body p{font-size:14px;line-height:24px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:8px;font-size:12px;color:#8A968F;}
.rec-foot .go{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:5px;}

/* ============ CTA band ============ */
.cta-wrap{padding:72px 0 0;}
.cta-band{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:44px 44px;border-radius:20px;background:var(--primary);color:#fff;}
.cta-band::after{content:"";position:absolute;right:-40px;top:-60px;width:420px;height:320px;background:repeating-linear-gradient(115deg,rgba(200,241,105,.16) 0 2px,transparent 2px 22px);pointer-events:none;}
.cta-band h2{position:relative;font-size:28px;line-height:38px;font-weight:800;color:#fff;}
.cta-band p{position:relative;margin-top:10px;font-size:14px;line-height:26px;color:#B8C9BE;max-width:52ch;}
.cta-actions{position:relative;display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}
.cta-actions .btn-ghost{border-color:rgba(234,243,236,.5);color:#EAF3EC;}
.cta-actions .btn-ghost:hover{background:rgba(234,243,236,.12);border-color:#EAF3EC;}

/* ============ footer ============ */
.site-foot{margin-top:84px;background:var(--primary);color:#EAF3EC;border-top:4px solid var(--accent);}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.5fr;gap:36px;padding:56px 0 40px;}
.foot-brand .brand-title{color:#fff;}
.foot-brand .brand-sub{color:#9FB6AA;}
.foot-brand p{margin-top:16px;font-size:13px;line-height:25px;color:#B8C9BE;max-width:38ch;}
.foot-col h3{font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--accent);margin-bottom:14px;}
.foot-col ul{list-style:none;}
.foot-col li{margin-bottom:10px;}
.foot-col a{font-size:14px;color:#EAF3EC;}
.foot-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.foot-note{font-size:13px;line-height:25px;color:#B8C9BE;}
.foot-note strong{color:var(--accent);}
.foot-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:18px 0;border-top:1px solid rgba(234,243,236,.16);font-size:13px;color:#B8C9BE;}

/* ============ toast ============ */
#toast{position:fixed;left:50%;bottom:36px;transform:translate(-50%,16px);background:var(--primary);color:#fff;font-size:14px;padding:12px 22px;border-radius:999px;box-shadow:var(--sh-3);opacity:0;pointer-events:none;transition:opacity 200ms,transform 200ms;z-index:200;}
#toast.show{opacity:1;transform:translate(-50%,0);}

/* ============ responsive ============ */
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:30px;}
  .article-aside{order:-1;}
  .aside-sticky{position:static;}
  .side-card{margin-bottom:14px;}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:900px){
  .search{display:none;}
}
@media (max-width:768px){
  .shell{padding:0 20px;}
  .topbar{height:64px;gap:14px;}
  .brand-title{font-size:13px;}
  .brand-sub{font-size:10px;letter-spacing:.12em;}
  .brand-mark{width:34px;height:34px;border-radius:10px;}
  .tabs{height:48px;}
  .tab{padding:7px 15px;font-size:13px;}
  .post-title{font-size:32px;line-height:40px;}
  .post-summary{font-size:15px;line-height:27px;}
  .meta-bar{gap:14px 20px;font-size:12px;}
  .article-body h2{font-size:22px;line-height:32px;margin-top:34px;}
  .article-body h3{font-size:19px;line-height:29px;}
  .section-head h2{font-size:26px;line-height:34px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .site-foot{margin-top:64px;}
}
@media (max-width:640px){
  .rec-grid{grid-template-columns:minmax(0,1fr);}
  .foot-grid{grid-template-columns:1fr;gap:26px;padding:44px 0 30px;}
  .btn{width:auto;}
  .post-actions .btn{flex:1 1 auto;}
  .crumbs .current{max-width:100%;}
}

/* roulang page: category1 */
:root{
    --primary:#0D3B2E;
    --primary-hover:#14523F;
    --accent:#C8F169;
    --accent-hover:#D6FA86;
    --bg:#F4EFE4;
    --surface:#FFFFFF;
    --surface-2:#FBF7EE;
    --ink:#15201B;
    --muted:#5B665F;
    --line:#DAD2C2;
    --amber:#E7A33A;
    --danger:#B3261E;
    --soft-green:#E9F2E4;
    --radius-card:18px;
    --radius-img:14px;
    --radius-pill:999px;
    --radius-input:12px;
    --shadow-sm:0 1px 2px rgba(13,59,46,.06);
    --shadow-md:0 14px 34px rgba(13,59,46,.10);
    --shadow-lg:0 24px 60px rgba(13,59,46,.14);
    --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
    --ease:cubic-bezier(.2,.8,.2,1);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.75;
    color:var(--ink);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;}
  a{color:var(--primary);text-decoration:none;transition:color 180ms var(--ease);}
  h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;letter-spacing:-.01em;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
  input{font:inherit;}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

  .shell{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

  /* ---------- header ---------- */
  .site-head{
    position:sticky;top:0;z-index:60;
    background:var(--bg);
    border-bottom:1px solid var(--line);
  }
  .topbar{display:flex;align-items:center;gap:16px;height:72px;}
  .brand{display:flex;align-items:center;gap:12px;flex:none;}
  .brand-mark{
    position:relative;flex:none;width:38px;height:38px;border-radius:11px;
    background:var(--primary);
    box-shadow:inset 0 0 0 1px rgba(200,241,105,.18);
  }
  .brand-mark::before{
    content:"";position:absolute;left:50%;top:50%;width:10px;height:10px;
    margin:-8px 0 0 -5px;border-radius:50%;background:var(--accent);
  }
  .brand-mark::after{
    content:"";position:absolute;left:50%;bottom:8px;width:15px;height:2px;
    margin-left:-7.5px;border-radius:2px;background:rgba(200,241,105,.6);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.2;}
  .brand-title{font-size:16px;font-weight:800;color:var(--primary);letter-spacing:-.01em;}
  .brand-sub{font-size:11px;letter-spacing:.16em;color:var(--muted);font-weight:600;margin-top:3px;}
  .search{
    flex:1 1 260px;max-width:320px;margin-left:auto;position:relative;
    display:flex;align-items:center;gap:8px;
    height:44px;padding:0 14px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-input);
    transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
  }
  .search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(200,241,105,.35);}
  .search svg{width:17px;height:17px;flex:none;fill:none;stroke:var(--muted);stroke-width:2;stroke-linecap:round;}
  .search input{
    flex:1;min-width:0;border:0;background:transparent;outline:none;
    font-size:14px;color:var(--ink);
  }
  .search input::placeholder{color:#8B968F;}
  .tool-group{display:flex;align-items:center;gap:8px;flex:none;}
  .icon-btn{
    width:38px;height:38px;display:grid;place-items:center;
    border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--primary);
    transition:background 180ms var(--ease),color 180ms var(--ease),transform 180ms var(--ease),border-color 180ms var(--ease);
  }
  .icon-btn:hover{background:var(--soft-green);border-color:rgba(13,59,46,.28);transform:translateY(-1px);}
  .icon-btn.is-on{background:var(--accent);border-color:var(--accent);color:var(--primary);}

  .tabs{
    display:flex;align-items:center;gap:6px;
    padding:6px 0 10px;
    overflow-x:auto;
    scrollbar-width:none;
    -ms-overflow-style:none;
  }
  .tabs::-webkit-scrollbar{display:none;}
  .tab{
    display:inline-flex;align-items:center;
    min-height:36px;padding:8px 16px;
    border-radius:var(--radius-pill);
    font-size:14px;font-weight:500;color:var(--ink);
    white-space:nowrap;
    transition:background 180ms var(--ease),color 180ms var(--ease);
  }
  .tab:hover{background:#E7F0E3;}
  .tab.active{background:var(--accent);color:var(--primary);font-weight:700;box-shadow:var(--shadow-sm);}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 22px;border-radius:var(--radius-pill);
    font-size:15px;font-weight:600;line-height:1;
    border:1px solid transparent;
    transition:background 180ms var(--ease),color 180ms var(--ease),transform 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease);
  }
  .btn-sm{padding:10px 18px;font-size:14px;}
  .btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);}
  .btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-md);}
  .btn-accent{background:var(--accent);color:var(--primary);border-color:var(--accent);}
  .btn-accent:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:var(--shadow-md);}
  .btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary);}
  .btn-ghost:hover{background:var(--soft-green);transform:translateY(-1px);}
  .btn-ghost-light{background:transparent;color:#EAF3EC;border-color:rgba(234,243,236,.45);}
  .btn-ghost-light:hover{background:rgba(234,243,236,.12);color:#fff;transform:translateY(-1px);}
  .btn:active{transform:translateY(0);}

  /* ---------- hero ---------- */
  .page-hero{
    position:relative;overflow:hidden;
    padding:56px 0 64px;
    border-bottom:1px solid var(--line);
    background:var(--bg);
  }
  .page-hero::before{
    content:"";position:absolute;inset:0;
    background-image:repeating-linear-gradient(115deg,rgba(13,59,46,.055) 0 2px,transparent 2px 26px);
    opacity:.9;pointer-events:none;
  }
  .page-hero::after{
    content:"";position:absolute;right:-120px;top:-140px;width:520px;height:520px;
    background:radial-gradient(circle,rgba(200,241,105,.35),rgba(200,241,105,0) 62%);
    pointer-events:none;
  }
  .hero-grid{
    position:relative;z-index:1;
    display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:center;
  }
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-family:var(--font-mono);font-size:12px;font-weight:600;letter-spacing:.14em;
    color:var(--primary);background:var(--soft-green);
    border:1px solid var(--line);border-radius:4px;
    padding:5px 12px;text-transform:uppercase;
  }
  .page-title{
    margin-top:18px;
    font-size:clamp(30px,4.2vw,44px);
    line-height:1.24;
    color:var(--primary);
  }
  .lede{
    margin-top:16px;max-width:580px;
    font-size:17px;line-height:1.85;color:var(--muted);
  }
  .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px;}
  .chip{
    display:inline-flex;align-items:center;
    padding:7px 14px;border-radius:var(--radius-pill);
    font-size:13px;font-weight:600;
    color:var(--primary);background:var(--surface);
    border:1px solid var(--line);
    transition:background 180ms var(--ease),border-color 180ms var(--ease),transform 180ms var(--ease);
  }
  .chip:hover{background:var(--accent);border-color:var(--accent);transform:translateY(-1px);}
  .hero-figure{position:relative;isolation:isolate;}
  .hero-figure::after{
    content:"";position:absolute;right:-10px;bottom:-10px;
    width:48%;height:40%;border-radius:var(--radius-img);
    background:var(--accent);z-index:-1;
  }
  .hero-img{
    width:100%;aspect-ratio:4/3;object-fit:cover;
    border-radius:var(--radius-img);
    border:1px solid var(--line);
    background:var(--surface-2);
    box-shadow:var(--shadow-md);
  }
  .hero-tag{
    position:absolute;left:14px;top:14px;
    display:inline-flex;align-items:center;
    padding:6px 12px;border-radius:4px;
    background:var(--primary);color:var(--accent);
    font-family:var(--font-mono);font-size:12px;font-weight:600;letter-spacing:.1em;
  }

  /* ---------- sections ---------- */
  .section{padding:76px 0;}
  .section-alt{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .section-head{
    display:flex;justify-content:space-between;align-items:flex-end;gap:24px;
    flex-wrap:wrap;margin-bottom:30px;
  }
  .section-title{font-size:clamp(24px,3vw,32px);color:var(--primary);}
  .section-sub{margin-top:10px;max-width:640px;font-size:15px;line-height:1.8;color:var(--muted);}
  .section-link{
    font-size:14px;font-weight:600;color:var(--primary);
    border-bottom:2px solid var(--accent);padding-bottom:2px;
    display:inline-flex;align-items:center;gap:6px;
    transition:color 180ms var(--ease),gap 180ms var(--ease);
  }
  .section-link:hover{color:var(--primary-hover);gap:10px;}

  /* ---------- directory ---------- */
  .directory{border-top:1px solid var(--line);}
  .dir-item{
    display:grid;grid-template-columns:64px 1fr auto;gap:20px;align-items:center;
    padding:20px 16px;border-bottom:1px solid var(--line);
    color:var(--ink);
    transition:background 180ms var(--ease),padding-left 180ms var(--ease);
  }
  .dir-item:hover{background:var(--surface-2);padding-left:22px;}
  .dir-num{
    font-family:var(--font-mono);font-size:17px;font-weight:600;color:var(--primary);
    background:var(--soft-green);border-radius:4px;text-align:center;padding:6px 0;line-height:1.4;
  }
  .dir-title{font-size:17px;font-weight:700;color:var(--primary);}
  .dir-desc{margin-top:5px;font-size:14px;line-height:1.7;color:var(--muted);}
  .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;}
  .tag{
    display:inline-flex;align-items:center;
    padding:3px 10px;border-radius:var(--radius-pill);
    font-size:12px;font-weight:600;
    background:var(--soft-green);color:var(--primary);
  }
  .tag-amber{background:#FBEEDA;color:#8A5A12;}
  .dir-arrow{font-size:20px;line-height:1;color:var(--primary);transition:transform 180ms var(--ease);}
  .dir-item:hover .dir-arrow{transform:translateX(4px);}

  /* ---------- steps ---------- */
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;margin-top:8px;}
  .step{position:relative;padding:0 26px 0 0;}
  .step:not(:last-child)::after{
    content:"";position:absolute;top:19px;left:52px;right:6px;
    border-top:1px dashed var(--line);z-index:0;
  }
  .step-dot{
    position:relative;z-index:1;
    width:40px;height:40px;border-radius:50%;
    display:grid;place-items:center;
    background:var(--primary);color:var(--accent);
    font-family:var(--font-mono);font-size:14px;font-weight:600;
    box-shadow:0 0 0 6px var(--bg);
  }
  .step h3{margin-top:16px;font-size:17px;color:var(--primary);}
  .step p{margin-top:6px;font-size:14px;line-height:1.75;color:var(--muted);}

  /* ---------- cards ---------- */
  .cards-wide{display:grid;gap:22px;}
  .card-wide{
    display:grid;grid-template-columns:5fr 7fr;
    background:var(--surface);
    border:1px solid var(--line);border-radius:var(--radius-card);
    overflow:hidden;box-shadow:var(--shadow-sm);
    transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease);
  }
  .card-wide:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:rgba(13,59,46,.28);}
  .card-media{position:relative;overflow:hidden;background:var(--surface-2);}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
  .card-wide:hover .card-media img{transform:scale(1.02);}
  .card-body{padding:24px 26px;display:flex;flex-direction:column;}
  .badge{
    display:inline-flex;align-self:flex-start;align-items:center;
    padding:4px 10px;border-radius:4px;
    font-size:12px;font-weight:700;letter-spacing:.02em;
    background:var(--soft-green);color:var(--primary);
  }
  .badge-amber{background:#FBEEDA;color:#8A5A12;}
  .card-wide h3{margin:12px 0 8px;font-size:20px;line-height:1.45;color:var(--primary);}
  .card-wide p{
    font-size:14px;line-height:1.75;color:var(--muted);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .meta{
    display:flex;flex-wrap:wrap;gap:14px;margin-top:auto;padding-top:16px;
    font-family:var(--font-mono);font-size:12px;color:var(--muted);
  }
  .news-row{
    display:grid;grid-template-columns:96px 1fr auto;gap:22px;align-items:center;
    margin-top:22px;padding:18px 22px;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-img);
    color:var(--ink);
    transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease);
  }
  .news-row:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:rgba(13,59,46,.28);}
  .date-block{
    font-family:var(--font-mono);font-size:19px;font-weight:600;color:var(--primary);line-height:1.2;
  }
  .date-block span{display:block;font-size:11px;font-weight:500;letter-spacing:.12em;color:var(--muted);margin-top:4px;}
  .news-row h3{font-size:17px;color:var(--primary);}
  .news-row p{margin-top:6px;font-size:14px;color:var(--muted);}
  .news-row .dir-arrow{font-size:20px;}
  .news-row:hover .dir-arrow{transform:translateX(4px);}

  /* ---------- faq ---------- */
  .faq{border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-q{
    display:flex;justify-content:space-between;align-items:center;gap:16px;
    padding:19px 4px;cursor:pointer;list-style:none;
    font-size:17px;font-weight:600;color:var(--ink);
  }
  .faq-q::-webkit-details-marker{display:none;}
  .faq-q:hover{color:var(--primary);}
  .faq-icon{
    position:relative;flex:none;width:28px;height:28px;border-radius:50%;
    border:1px solid var(--primary);color:var(--primary);
    display:grid;place-items:center;
    transition:background 180ms var(--ease),transform 180ms var(--ease),border-color 180ms var(--ease);
  }
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;background:currentColor;border-radius:2px;
    transition:opacity 180ms var(--ease);
  }
  .faq-icon::before{width:12px;height:2px;}
  .faq-icon::after{width:2px;height:12px;}
  .faq-item[open] .faq-icon{background:var(--primary);color:var(--accent);transform:rotate(180deg);}
  .faq-item[open] .faq-icon::after{opacity:0;}
  .faq-a{
    margin:0 0 20px 4px;padding:4px 0 4px 16px;
    border-left:3px solid var(--accent);
    font-size:15px;line-height:1.85;color:var(--muted);
  }

  /* ---------- cta ---------- */
  .cta-band{
    position:relative;overflow:hidden;
    display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
    padding:44px 46px;border-radius:20px;
    background:var(--primary);color:#EAF3EC;
    box-shadow:var(--shadow-lg);
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:repeating-linear-gradient(125deg,rgba(200,241,105,.16) 0 2px,transparent 2px 30px);
    pointer-events:none;
  }
  .cta-band::after{
    content:"";position:absolute;right:-60px;bottom:-80px;width:260px;height:260px;
    border-radius:50%;background:rgba(200,241,105,.10);pointer-events:none;
  }
  .cta-copy{position:relative;z-index:1;}
  .cta-copy h2{font-size:clamp(22px,2.6vw,30px);color:#fff;}
  .cta-copy p{margin-top:10px;max-width:540px;font-size:15px;line-height:1.8;color:#B8C9BE;}
  .cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;}

  /* ---------- footer ---------- */
  .site-foot{
    margin-top:0;padding-top:56px;
    background:var(--primary);color:#EAF3EC;
    border-top:4px solid var(--accent);
  }
  .foot-main{padding-bottom:8px;}
  .foot-grid{
    display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;
    padding-bottom:40px;
  }
  .foot-brand .brand-title{color:#fff;}
  .foot-brand .brand-sub{color:#B8C9BE;}
  .foot-brand .brand-mark{background:rgba(255,255,255,.08);box-shadow:inset 0 0 0 1px rgba(200,241,105,.28);}
  .foot-brand p{margin-top:16px;max-width:340px;font-size:14px;line-height:1.85;color:#B8C9BE;}
  .foot-col h3{
    margin-bottom:14px;font-size:12px;font-weight:700;
    letter-spacing:.16em;text-transform:uppercase;color:var(--accent);
  }
  .foot-col ul{display:grid;gap:10px;}
  .foot-col a{font-size:14px;color:#EAF3EC;}
  .foot-col a:hover{color:var(--accent);text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:4px;}
  .foot-note{font-size:14px;line-height:1.85;color:#B8C9BE;}
  .foot-note strong{color:var(--accent);font-weight:600;}
  .foot-bottom{
    display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
    padding:18px 0 26px;border-top:1px solid rgba(234,243,236,.18);
    font-size:13px;color:#B8C9BE;
  }

  /* ---------- responsive ---------- */
  @media (max-width:1024px){
    .hero-grid{grid-template-columns:1fr;gap:36px;}
    .hero-figure{max-width:560px;}
    .section{padding:60px 0;}
    .steps{grid-template-columns:repeat(2,1fr);row-gap:32px;}
    .step:not(:last-child)::after{display:none;}
    .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .team-grid,.card-grid{grid-template-columns:1fr;}
  }
  @media (max-width:768px){
    .shell{padding:0 20px;}
    .topbar{height:64px;gap:12px;}
    .search{display:none;}
    .brand-title{font-size:15px;line-height:1.25;}
    .brand-sub{font-size:10px;}
    .section{padding:48px 0;}
    .page-hero{padding:40px 0 48px;}
    .page-title{font-size:clamp(26px,7vw,32px);}
    .lede{font-size:16px;line-height:1.8;}
    .card-wide{grid-template-columns:1fr;}
    .card-media img{aspect-ratio:16/10;}
    .dir-item{grid-template-columns:52px 1fr;gap:14px;padding:18px 8px;}
    .dir-arrow{display:none;}
    .news-row{grid-template-columns:1fr;gap:12px;}
    .date-block{font-size:15px;}
    .cta-band{grid-template-columns:1fr;padding:30px 24px;gap:22px;border-radius:16px;}
    .faq-q{font-size:16px;min-height:56px;}
    .foot-grid{grid-template-columns:1fr;gap:28px;}
    .foot-bottom{flex-direction:column;gap:6px;}
  }
  @media (max-width:520px){
    .steps{grid-template-columns:1fr;}
    .tool-group .btn-sm{display:none;}
    .chips{gap:6px;}
    .chip{font-size:12px;padding:6px 12px;}
    .cta-actions{flex-direction:column;}
    .cta-actions .btn{width:100%;}
    .section-head{gap:12px;}
  }

/* roulang page: category2 */
:root{
  --primary:#0D3B2E;
  --primary-hover:#14523F;
  --accent:#C8F169;
  --accent-hover:#D6FA86;
  --bg:#F4EFE4;
  --surface-2:#FBF7EE;
  --surface:#FFFFFF;
  --ink:#15201B;
  --muted:#5B665F;
  --line:#DAD2C2;
  --amber:#E7A33A;
  --danger:#B3261E;
  --r-card:18px;
  --r-img:14px;
  --shadow-sm:0 1px 2px rgba(13,59,46,.06);
  --shadow-md:0 14px 34px rgba(13,59,46,.10);
  --shadow-lg:0 24px 60px rgba(13,59,46,.14);
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,Menlo,monospace;
}
*{box-sizing:border-box}
.page-body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
.page-body a{color:inherit;text-decoration:none}
.page-body img{display:block;max-width:100%}
.page-body button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.page-body ul,.page-body ol{margin:0;padding:0;list-style:none}
.page-body h1,.page-body h2,.page-body h3,.page-body h4,.page-body p{margin:0}
.page-body :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 导航 ---------- */
.site-head{position:sticky;top:0;z-index:60;background:var(--bg);border-bottom:1px solid var(--line)}
.topbar{display:flex;align-items:center;gap:16px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{position:relative;width:34px;height:34px;border-radius:10px;background:var(--primary);flex:none}
.brand-mark::before{content:"";position:absolute;left:50%;top:8px;width:11px;height:11px;border-radius:50% 50% 50% 0;transform:translateX(-50%) rotate(-45deg);background:var(--accent)}
.brand-mark::after{content:"";position:absolute;left:50%;bottom:8px;width:15px;height:3px;border-radius:2px;transform:translateX(-50%);background:var(--accent);opacity:.85}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-title{font-size:16px;font-weight:800;letter-spacing:.2px;color:var(--primary)}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:.8px}
.search{display:flex;align-items:center;gap:8px;height:44px;width:320px;max-width:34vw;padding:0 14px;background:var(--surface);border:1px solid var(--line);border-radius:12px;transition:border-color .18s,box-shadow .18s}
.search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(200,241,105,.35)}
.search svg{width:17px;height:17px;flex:none;fill:none;stroke:var(--muted);stroke-width:2;stroke-linecap:round}
.search input{width:100%;border:0;outline:0;background:transparent;font-size:14px;color:var(--ink)}
.search input::placeholder{color:#98A29B}
.tool-group{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--primary);transition:background .18s,border-color .18s,color .18s,transform .18s}
.icon-btn:hover{background:var(--surface-2);border-color:rgba(13,59,46,.32);transform:translateY(-1px)}
.icon-btn.faved{background:var(--accent);border-color:var(--accent)}
.icon-btn.faved svg{fill:var(--primary);stroke:var(--primary)}
.tabs{display:flex;align-items:center;gap:6px;height:52px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;-webkit-mask-image:linear-gradient(to right,#000 0,#000 calc(100% - 26px),transparent 100%);mask-image:linear-gradient(to right,#000 0,#000 calc(100% - 26px),transparent 100%)}
.tabs::-webkit-scrollbar{display:none}
.tab{position:relative;flex:none;display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;font-size:14.5px;color:var(--muted);white-space:nowrap;transition:background .18s,color .18s}
.tab:hover{background:#E7F0E3;color:var(--primary)}
.tab.active{background:var(--accent);color:var(--primary);font-weight:600;padding-left:24px}
.tab.active::before{content:"";position:absolute;left:11px;top:50%;transform:translateY(-50%);width:3px;height:15px;border-radius:2px;background:var(--primary)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;line-height:1;white-space:nowrap;transition:background .18s cubic-bezier(.2,.8,.2,1),color .18s,border-color .18s,transform .18s,box-shadow .18s}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-accent{background:var(--accent);color:var(--primary)}
.btn-accent:hover{background:var(--accent-hover)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hover)}
.btn-ghost{background:transparent;color:var(--primary);border:1px solid var(--primary)}
.btn-ghost:hover{background:#E9F2E4}
.btn-on-dark{background:transparent;color:#EAF3EC;border:1px solid rgba(234,243,236,.55)}
.btn-on-dark:hover{background:rgba(234,243,236,.12);border-color:var(--accent);color:var(--accent)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--bg);border-bottom:1px solid var(--line)}
.page-hero::before{content:"";position:absolute;inset:0;pointer-events:none;background:
  radial-gradient(880px 420px at 88% -12%,rgba(200,241,105,.30),transparent 62%),
  repeating-linear-gradient(115deg,rgba(13,59,46,.055) 0 2px,transparent 2px 28px);}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.35fr .85fr;gap:48px;align-items:center;padding:52px 0 56px}
.kicker{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:1.4px;color:var(--primary);background:rgba(200,241,105,.55);border:1px solid rgba(13,59,46,.18);padding:6px 12px;border-radius:4px}
.hero-title{margin-top:18px;font-size:clamp(28px,3.6vw,42px);line-height:1.2;font-weight:800;letter-spacing:-.4px;color:var(--ink)}
.hero-title em{font-style:normal;color:var(--primary);background:linear-gradient(transparent 62%,rgba(200,241,105,.85) 62%,rgba(200,241,105,.85) 92%,transparent 92%)}
.hero-lead{margin-top:18px;max-width:580px;font-size:16.5px;line-height:1.85;color:var(--muted)}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:26px}
.hero-meta li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.hero-meta b{font-family:var(--mono);font-size:17px;font-weight:600;color:var(--primary);letter-spacing:.5px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-figure{position:relative;isolation:isolate}
.hero-figure::after{content:"";position:absolute;right:-8px;bottom:-8px;width:62%;height:54%;background:var(--accent);border-radius:var(--r-img);z-index:-1}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line);background:var(--surface-2);box-shadow:var(--shadow-md)}
.plate{position:absolute;left:14px;top:14px;padding:6px 11px;border-radius:4px;background:var(--primary);color:var(--accent);font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:1.2px}

/* ---------- 板块 ---------- */
.section{padding:64px 0}
.section-tight{padding:48px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:24px}
.sec-title{font-size:clamp(22px,2.4vw,30px);font-weight:800;letter-spacing:-.3px;line-height:1.3}
.sec-sub{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.7}
.sec-link{flex:none;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);border-bottom:2px solid var(--accent);padding-bottom:2px;transition:gap .18s}
.sec-link:hover{gap:10px}

/* ---------- 主体两栏 ---------- */
.layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:36px;align-items:start}
.side-nav{position:sticky;top:96px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:14px;box-shadow:var(--shadow-sm)}
.side-cap{font-family:var(--mono);font-size:11.5px;letter-spacing:1.4px;color:var(--muted);font-weight:600;padding:6px 12px 12px}
.side-link{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border-radius:10px;border-left:3px solid transparent;font-size:14.5px;color:var(--ink);transition:background .18s,color .18s,border-color .18s}
.side-link:hover{background:var(--surface-2)}
.side-link.active{background:var(--surface-2);border-left-color:var(--accent);color:var(--primary);font-weight:600}
.side-link .num{font-family:var(--mono);font-size:12px;color:var(--muted);font-weight:600}

/* ---------- 问答 ---------- */
.qa-group{margin-bottom:40px;scroll-margin-top:130px}
.qa-group:last-child{margin-bottom:0}
.qa-group-title{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;letter-spacing:-.2px;margin-bottom:12px;color:var(--ink)}
.qa-group-title span{font-family:var(--mono);font-size:12px;font-weight:600;color:var(--primary);background:rgba(200,241,105,.6);border-radius:4px;padding:3px 8px;letter-spacing:1px}
.qa-list{border-bottom:1px solid var(--line)}
.qa-item{border-top:1px solid var(--line)}
.qa-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:52px;padding:17px 0;text-align:left;font-size:16.5px;font-weight:600;line-height:1.55;color:var(--ink);transition:color .18s}
.qa-q:hover{color:var(--primary)}
.qa-ic{position:relative;flex:none;width:28px;height:28px;border-radius:50%;border:1px solid rgba(13,59,46,.3);background:var(--surface);transition:background .18s,border-color .18s}
.qa-ic::before,.qa-ic::after{content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;transition:opacity .18s,transform .18s}
.qa-ic::before{width:12px;height:2px;transform:translate(-50%,-50%)}
.qa-ic::after{width:2px;height:12px;transform:translate(-50%,-50%)}
.qa-item.open .qa-ic{background:var(--accent);border-color:var(--accent)}
.qa-item.open .qa-ic::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg)}
.qa-a{max-height:0;overflow:hidden;transition:max-height .22s cubic-bezier(.2,.8,.2,1)}
.qa-a-in{padding:4px 18px 20px 18px;border-left:3px solid var(--accent);background:var(--surface-2);border-radius:0 12px 12px 0;margin-bottom:14px;font-size:15px;line-height:1.85;color:var(--muted)}

/* ---------- 平台对照 ---------- */
.compare{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-sm)}
.compare-head,.compare-row{display:grid;grid-template-columns:1.1fr .9fr 1.8fr .85fr;gap:18px;padding:16px 22px;align-items:center}
.compare-head{background:var(--surface-2);font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:1.2px;color:var(--muted)}
.compare-row{border-top:1px solid var(--line);font-size:14.5px;transition:background .18s}
.compare-row:hover{background:var(--surface-2)}
.compare-row .c-name{font-weight:600;color:var(--primary)}
.compare-row .c-mode{color:var(--ink)}
.compare-row .c-check{color:var(--muted);line-height:1.7}
.compare-row .c-time{font-family:var(--mono);font-size:13px;font-weight:600;color:var(--amber)}
.compare-note{margin-top:14px;font-size:13px;color:var(--muted)}

/* ---------- 相关推荐 ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rec-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .18s,border-color .18s,box-shadow .18s}
.rec-card:hover{transform:translateY(-2px);border-color:rgba(13,59,46,.28);box-shadow:var(--shadow-md)}
.rec-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--surface-2);border-bottom:1px solid var(--line)}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.rec-card:hover .rec-thumb img{transform:scale(1.02)}
.rec-body{display:flex;flex-direction:column;gap:8px;padding:18px 20px 20px}
.rec-tag{align-self:flex-start;font-size:11.5px;font-weight:600;letter-spacing:.8px;padding:3px 9px;border-radius:4px;background:rgba(200,241,105,.6);color:var(--primary)}
.rec-body h3{font-size:17px;font-weight:700;line-height:1.45;color:var(--ink)}
.rec-body p{font-size:14px;line-height:1.75;color:var(--muted)}
.rec-more{margin-top:2px;display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--primary)}
.rec-more .arw{transition:transform .18s}
.rec-card:hover .rec-more .arw{transform:translateX(3px)}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:40px 44px;background:var(--primary);border-radius:20px;box-shadow:var(--shadow-lg)}
.cta-band::before{content:"";position:absolute;inset:0;pointer-events:none;background:repeating-linear-gradient(115deg,rgba(200,241,105,.14) 0 2px,transparent 2px 30px)}
.cta-copy{position:relative;max-width:620px}
.cta-copy h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;line-height:1.3;color:#fff;letter-spacing:-.3px}
.cta-copy p{margin-top:10px;font-size:14.5px;line-height:1.8;color:#B8C9BE}
.cta-actions{position:relative;display:flex;gap:12px;flex-wrap:wrap;flex:none}

/* ---------- 页脚 ---------- */
.site-foot{margin-top:80px;background:var(--primary);color:#EAF3EC;border-top:4px solid var(--accent)}
.foot-main{padding:56px 0 40px}
.foot-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr 1.2fr;gap:40px}
.site-foot .brand-title{color:#fff}
.site-foot .brand-sub{color:#B8C9BE}
.site-foot .brand-mark{background:rgba(255,255,255,.12)}
.foot-brand p{margin-top:14px;max-width:340px;font-size:14px;line-height:1.85;color:#B8C9BE}
.foot-col h3{font-family:var(--mono);font-size:12.5px;font-weight:600;letter-spacing:1.4px;color:var(--accent);margin-bottom:14px}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:14px;color:#EAF3EC;opacity:.85;transition:color .18s,opacity .18s}
.foot-col a:hover{color:var(--accent);opacity:1}
.foot-note{font-size:13.5px;line-height:1.85;color:#B8C9BE}
.foot-note strong{color:var(--accent);font-weight:600}
.foot-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:20px 0 28px;border-top:1px solid rgba(234,243,236,.16);font-size:13px;color:#B8C9BE}

/* ---------- 提示条 ---------- */
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,14px);z-index:120;padding:12px 20px;border-radius:999px;background:var(--primary);color:#EAF3EC;font-size:13.5px;box-shadow:var(--shadow-md);opacity:0;pointer-events:none;transition:opacity .2s,transform .2s}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .search{display:none}
  .hero-grid{grid-template-columns:1fr;gap:28px;padding:40px 0 44px}
  .hero-figure{max-width:560px}
  .layout{grid-template-columns:1fr;gap:24px}
  .side-nav{position:static;display:flex;gap:8px;overflow-x:auto;padding:10px;scrollbar-width:none}
  .side-nav::-webkit-scrollbar{display:none}
  .side-cap{display:none}
  .side-link{flex:none;border-left:0;border-bottom:3px solid transparent;border-radius:8px;white-space:nowrap}
  .side-link.active{border-left:0;border-bottom-color:var(--accent)}
  .side-link .num{display:none}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .shell{padding:0 20px}
  .topbar{height:64px;gap:10px}
  .brand-title{font-size:14.5px}
  .tabs{height:48px}
  .section{padding:48px 0}
  .section-tight{padding:36px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px}
  .rec-grid{grid-template-columns:1fr}
  .compare-head{display:none}
  .compare-row{grid-template-columns:1fr;gap:6px;padding:18px}
  .compare-row > div{display:flex;gap:10px;font-size:14px}
  .compare-row > div::before{content:attr(data-label);flex:none;width:78px;font-family:var(--mono);font-size:12px;letter-spacing:.6px;color:var(--muted);padding-top:2px}
  .cta-band{flex-direction:column;align-items:flex-start;gap:22px;padding:28px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .foot-main{padding:40px 0 28px}
  .qa-a-in{padding-right:14px}
}
@media (max-width:520px){
  .tool-group #favBtn{display:none}
  .btn-sm{height:38px;padding:0 14px;font-size:13px}
  .icon-btn{width:38px;height:38px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .hero-title{font-size:28px}
  .hero-actions .btn{flex:1}
  .hero-meta{gap:8px 18px}
  .qa-q{font-size:15.5px;padding:15px 0}
}