/* roulang page: index */
:root{
  --primary:#0E1512;
  --accent:#D6F84C;
  --accent-2:#FF5A36;
  --bg:#F7F6F2;
  --bg-alt:#EFEDE6;
  --text:#12140F;
  --text-2:#5A5F55;
  --text-3:#8A8F84;
  --line:#E2DFD6;
  --border:#D9D6CC;
  --radius-card:14px;
  --radius-img:12px;
  --radius-input:10px;
  --pill:999px;
  --shadow-1:0 1px 2px rgba(14,21,18,.06);
  --shadow-2:0 16px 34px rgba(14,21,18,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --section:96px;
  --max:1240px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;scroll-padding-top:132px;-webkit-text-size-adjust:100%;}
body{
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16.5px;
  line-height:1.75;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input{font-family:inherit;font-size:15px;}
ul,ol{list-style:none;}
h1,h2,h3,h4{line-height:1.2;letter-spacing:-0.01em;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.container{max-width:var(--max);margin:0 auto;padding:0 32px;}
.section{padding:var(--section) 0;}
.section--alt{background:var(--bg-alt);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:700;}
.section-head p{color:var(--text-2);font-size:15px;margin-top:10px;max-width:640px;}
.eyebrow{
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);
  font-weight:700;margin-bottom:14px;display:inline-block;
}
.eyebrow--dark{color:var(--text-3);}
.text-link{
  font-size:15px;font-weight:600;color:var(--text);position:relative;display:inline-flex;align-items:center;gap:6px;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;background:var(--accent);
  transition:width .32s var(--ease);
}
.text-link:hover::after{width:100%;}
.text-link:hover{color:var(--primary);}

/* ============ 双层导航 ============ */
.site-header{position:sticky;top:0;z-index:80;}
.nav-top{
  background:var(--primary);color:#F2F1EC;height:68px;display:flex;align-items:center;
}
.nav-top .container{display:flex;align-items:center;gap:22px;width:100%;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--accent);
  display:grid;place-items:center;flex-shrink:0;
}
.logo-mark svg{width:19px;height:19px;display:block;}
.logo-text{font-size:19px;font-weight:800;letter-spacing:-.01em;color:#fff;white-space:nowrap;}
.logo-text span{color:var(--accent);}
.nav-search{
  margin-left:auto;display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--pill);height:40px;padding:0 8px 0 16px;width:240px;
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.nav-search:focus-within{border-color:var(--accent);background:rgba(255,255,255,.12);}
.nav-search input{
  background:none;border:none;outline:none;color:#fff;flex:1;min-width:0;font-size:14px;
}
.nav-search input::placeholder{color:rgba(255,255,255,.5);}
.nav-search button{
  width:28px;height:28px;border-radius:var(--pill);background:var(--accent);display:grid;place-items:center;
  transition:transform .24s var(--ease);
}
.nav-search button:hover{transform:translateX(2px);}
.nav-search button svg{width:14px;height:14px;}
.nav-links{display:flex;align-items:center;gap:20px;font-size:15px;}
.nav-links a{color:rgba(255,255,255,.78);transition:color .2s var(--ease);}
.nav-links a:hover,.nav-links a.active{color:#fff;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--pill);font-weight:600;font-size:15px;padding:0 24px;height:44px;
  transition:background .26s var(--ease),color .26s var(--ease),border-color .26s var(--ease),transform .26s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#F7F6F2;}
.btn-primary:hover{background:var(--accent);color:var(--primary);}
.btn-primary:hover .arrow{transform:translateX(4px);}
.btn-outline{border:1px solid var(--primary);color:var(--primary);background:transparent;}
.btn-outline:hover{background:var(--primary);color:#F7F6F2;}
.btn-accent{background:var(--accent-2);color:#fff;}
.btn-accent:hover{background:#e94a28;}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.arrow{display:inline-block;transition:transform .26s var(--ease);}
.nav-cta{height:38px;padding:0 20px;font-size:14px;background:var(--accent);color:var(--primary);}
.nav-cta:hover{background:var(--accent-2);color:#fff;}
.search-toggle{display:none;}

.nav-tabs{background:var(--bg-alt);border-bottom:1px solid var(--line);height:48px;}
.nav-tabs .container{display:flex;align-items:center;height:100%;overflow-x:auto;scrollbar-width:none;gap:10px;}
.nav-tabs .container::-webkit-scrollbar{display:none;}
.tab{
  flex:0 0 auto;height:32px;padding:0 16px;border-radius:var(--pill);
  display:inline-flex;align-items:center;font-size:14px;color:var(--text-2);
  border:1px solid transparent;transition:all .24s var(--ease);scroll-snap-align:start;
}
.tab:hover{color:var(--text);border-color:var(--border);}
.tab.active{background:var(--accent);color:var(--primary);font-weight:600;}

/* ============ Hero ============ */
.hero{
  position:relative;color:#fff;overflow:hidden;
  background:var(--primary);
  min-height:600px;display:flex;align-items:center;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  transform:scale(1.02);
  animation:heroZoom 12s var(--ease) forwards;
}
@keyframes heroZoom{from{transform:scale(1.06);}to{transform:scale(1.02);}}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,21,18,.94) 0%,rgba(14,21,18,.82) 42%,rgba(14,21,18,.42) 100%);
}
.hero .container{position:relative;z-index:2;padding-top:88px;padding-bottom:88px;}
.hero-inner{max-width:720px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid rgba(214,248,76,.5);color:var(--accent);
  border-radius:var(--pill);padding:6px 16px;font-size:13px;letter-spacing:.06em;
  margin-bottom:24px;
  opacity:0;transform:translateY(12px);animation:fadeUp .5s var(--ease) .05s forwards;
}
.hero h1{
  font-size:clamp(2rem,5vw,3.4rem);font-weight:800;letter-spacing:-.02em;line-height:1.08;
  margin-bottom:20px;
  opacity:0;transform:translateY(12px);animation:fadeUp .5s var(--ease) .13s forwards;
}
.hero h1 em{font-style:normal;color:var(--accent);}
.hero-sub{
  font-size:17px;color:rgba(255,255,255,.78);max-width:560px;margin-bottom:34px;
  opacity:0;transform:translateY(12px);animation:fadeUp .5s var(--ease) .21s forwards;
}
.hero-actions{
  display:flex;gap:14px;flex-wrap:wrap;
  opacity:0;transform:translateY(12px);animation:fadeUp .5s var(--ease) .29s forwards;
}
.hero-actions .btn-primary{background:var(--accent-2);color:#fff;}
.hero-actions .btn-primary:hover{background:var(--accent);color:var(--primary);}
.hero-actions .btn-outline{border-color:rgba(255,255,255,.55);color:#fff;}
.hero-actions .btn-outline:hover{background:#fff;color:var(--primary);border-color:#fff;}
.hero-scroll{
  margin-top:52px;font-size:13px;letter-spacing:.06em;color:rgba(255,255,255,.55);
  display:flex;align-items:center;gap:10px;
  opacity:0;animation:fadeUp .5s var(--ease) .37s forwards;
}
.hero-scroll i{
  width:1px;height:28px;background:linear-gradient(to bottom,var(--accent),transparent);display:block;
}
@keyframes fadeUp{to{opacity:1;transform:translateY(0);}}

/* ============ 指标条 ============ */
.metrics{background:var(--primary);color:#fff;border-top:1px solid rgba(255,255,255,.09);}
.metrics-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  padding:44px 0;
}
.metric{padding:0 28px;border-left:1px solid rgba(255,255,255,.13);}
.metric:first-child{border-left:none;padding-left:0;}
.metric strong{
  display:block;font-size:clamp(1.9rem,3.4vw,2.8rem);font-weight:800;color:var(--accent);
  letter-spacing:-.02em;line-height:1.1;
}
.metric span{display:block;font-size:13px;letter-spacing:.06em;color:rgba(255,255,255,.6);margin-top:8px;}

/* ============ 错位图文 ============ */
.split{
  display:grid;grid-template-columns:12fr;
  gap:56px;align-items:center;
}
.split + .split{margin-top:80px;}
.split--a{grid-template-columns:5fr 7fr;}
.split--b{grid-template-columns:7fr 5fr;}
.split-media{position:relative;}
.split-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border:1px solid var(--border);background:var(--bg-alt);
}
.split-media .vlabel{
  position:absolute;left:-14px;top:20px;
  background:var(--primary);color:var(--accent);
  border-radius:var(--pill);padding:6px 12px;font-size:12px;letter-spacing:.06em;
  writing-mode:vertical-rl;text-orientation:mixed;
}
.split-body h3{
  font-size:clamp(1.4rem,2.4vw,1.85rem);font-weight:700;margin-bottom:14px;
}
.split-body p{color:var(--text-2);margin-bottom:18px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;padding:9px 0;color:var(--text-2);font-size:15.5px;
}
.check-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;border-radius:50%;
  background:var(--accent);margin-top:9px;
}
.check-list strong{color:var(--text);font-weight:600;}

/* ============ 精选内容卡 ============ */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--border);}
.card:hover img{transform:scale(1.03);}
.card-media{overflow:hidden;background:var(--bg-alt);}
.card-media img{
  width:100%;object-fit:cover;border-radius:0;
  transition:transform .4s var(--ease);
}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;
  background:var(--bg-alt);color:var(--text-2);border:1px solid var(--line);
  border-radius:var(--pill);padding:4px 12px;font-size:12.5px;letter-spacing:.04em;
}
.badge--accent{background:var(--accent);color:var(--primary);border-color:var(--accent);font-weight:600;}
.card h3{
  font-size:1.25rem;font-weight:600;line-height:1.4;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card--lg h3{font-size:clamp(1.35rem,2.4vw,1.7rem);}
.card p{
  color:var(--text-2);font-size:15px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{font-size:13px;letter-spacing:.06em;color:var(--text-3);margin-top:auto;}
.card--lg .card-media img{height:100%;min-height:300px;}
.feature-side{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.feature-side .card-media img{height:170px;}
.card-row{
  display:flex;gap:20px;border:1px solid var(--line);border-radius:var(--radius-card);
  background:#fff;padding:20px;box-shadow:var(--shadow-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.card-row:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.card-row .card-media{flex:0 0 40%;border-radius:var(--radius-img);}
.card-row .card-media img{aspect-ratio:4/3;object-fit:cover;}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.news-card:hover img{transform:scale(1.03);}
.news-thumb{overflow:hidden;background:var(--bg-alt);}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform .4s var(--ease);}
.news-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-body h3{
  font-size:1.12rem;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:14.5px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{font-size:13px;letter-spacing:.06em;color:var(--text-3);margin-top:auto;}
.empty-state{
  grid-column:1/-1;border:1px dashed var(--border);border-radius:var(--radius-card);
  padding:56px 24px;text-align:center;background:#fff;
}
.empty-state p{color:var(--text-2);margin-bottom:18px;}

/* ============ 信任背书 ============ */
.logo-strip{
  display:flex;flex-wrap:wrap;gap:18px 40px;align-items:center;
  padding:28px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  filter:grayscale(1);opacity:.72;
}
.logo-strip span{font-size:15px;font-weight:700;letter-spacing:.08em;color:var(--text-2);}
.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:40px;}
.quote{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);
  border-left:4px solid var(--accent);
}
.quote p{color:var(--text);font-size:16px;margin-bottom:18px;}
.quote footer{font-size:13px;color:var(--text-3);letter-spacing:.06em;}

/* ============ FAQ ============ */
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-card);background:#fff;
  overflow:hidden;transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item.open{border-color:var(--border);box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;text-align:left;display:flex;justify-content:space-between;align-items:center;gap:20px;
  padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--text);
  position:relative;
}
.faq-item.open .faq-q::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--accent);
}
.faq-icon{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  border:1px solid var(--border);display:grid;place-items:center;
  font-size:16px;line-height:1;color:var(--text-2);
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--accent);color:var(--primary);border-color:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a p{padding:0 24px 22px;color:var(--text-2);font-size:15.5px;}

/* ============ CTA 订阅 ============ */
.cta-band{
  position:relative;color:#fff;overflow:hidden;
  background:var(--primary);
}
.cta-band .bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.36;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(14,21,18,.92),rgba(14,21,18,.66));
}
.cta-inner{position:relative;z-index:2;padding:72px 0;display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center;}
.cta-inner h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:700;margin-bottom:14px;}
.cta-inner p{color:rgba(255,255,255,.72);}
.sub-form{display:flex;gap:12px;}
.sub-form input{
  flex:1;height:50px;border-radius:var(--radius-input);border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.08);color:#fff;padding:0 18px;outline:none;
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.sub-form input::placeholder{color:rgba(255,255,255,.5);}
.sub-form input:focus{border-color:var(--accent);background:rgba(255,255,255,.12);}
.sub-form input.error{border-color:#D8402A;}
.sub-form input.ok{border-color:var(--accent);}
.sub-form button{height:50px;padding:0 28px;}
.form-msg{font-size:13px;margin-top:10px;letter-spacing:.04em;min-height:18px;}
.form-msg.err{color:#ff8a74;}
.form-msg.ok{color:var(--accent);}
.spinner{
  width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(255,255,255,.35);border-top-color:#fff;
  animation:spin .7s linear infinite;display:none;
}
@keyframes spin{to{transform:rotate(360deg);}}
button.loading .spinner{display:block;}
button.loading{pointer-events:none;opacity:.85;}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary);color:rgba(255,255,255,.66);padding-top:72px;}
.footer-grid{display:grid;grid-template-columns:4fr 3fr 3fr 4fr;gap:40px;padding-bottom:56px;}
.footer-brand .logo-text{font-size:18px;}
.footer-brand p{font-size:14.5px;margin:18px 0 0;max-width:300px;line-height:1.8;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col a{font-size:14.5px;transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block;}
.footer-col a:hover{color:var(--accent);transform:translateX(2px);}
.footer-sub input{
  width:100%;height:44px;border-radius:var(--radius-input);border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.06);color:#fff;padding:0 14px;outline:none;margin-bottom:12px;
}
.footer-sub input:focus{border-color:var(--accent);}
.footer-sub .btn{width:100%;height:44px;background:var(--accent);color:var(--primary);}
.footer-sub .btn:hover{background:var(--accent-2);color:#fff;}
.footer-legal{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;letter-spacing:.04em;color:rgba(255,255,255,.46);
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;
  background:var(--primary);color:var(--accent);display:grid;place-items:center;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
  z-index:70;
}
.to-top.show{opacity:1;visibility:visible;}
.to-top:hover{transform:translateY(-3px);background:var(--accent);color:var(--primary);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{max-width:1080px;}
}
@media (max-width:1023px){
  :root{--section:72px;}
  .container{padding:0 24px;}
  .nav-search{width:180px;}
  .nav-links{display:none;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:28px 0;}
  .metric{padding:0 20px;}
  .metric:nth-child(3){border-left:none;padding-left:0;}
  .split,.split--a,.split--b{grid-template-columns:1fr;gap:32px;}
  .split--b .split-media{order:-1;}
  .feature-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .cta-inner{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  blockquote, .quote-grid{grid-template-columns:1fr;}
}
@media (max-width:767px){
  :root{--section:48px;}
  html{scroll-padding-top:120px;}
  body{font-size:16px;}
  .container{padding:0 20px;}
  .nav-top{height:60px;}
  .nav-top .container{gap:12px;}
  .logo-text{font-size:16.5px;}
  .nav-search{display:none;}
  .search-toggle{
    display:grid;place-items:center;margin-left:auto;width:38px;height:38px;border-radius:50%;
    border:1px solid rgba(255,255,255,.2);color:#fff;
  }
  .nav-cta{display:none;}
  .hero{min-height:auto;}
  .hero .container{padding-top:56px;padding-bottom:56px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);padding:32px 0;}
  .metric{padding:0 16px;}
  .metric:nth-child(odd){border-left:none;padding-left:0;}
  .news-grid{grid-template-columns:1fr;}
  .feature-side{grid-template-columns:1fr;grid-template-rows:none;}
  .footer-grid{grid-template-columns:1fr;}
  .quote-grid{grid-template-columns:1fr;gap:16px;}
  .sub-form{flex-direction:column;}
  .sub-form button{width:100%;}
  .logo-strip{gap:14px 24px;}
  .card-row{flex-direction:column;}
  .card-row .card-media{flex:none;}
  .to-top{right:16px;bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --primary:#0E1512;
  --accent:#D6F84C;
  --accent-2:#FF5A36;
  --bg:#F7F6F2;
  --bg-alt:#EFEDE6;
  --text:#12140F;
  --text-2:#5A5F55;
  --text-3:#8A8F84;
  --line:#E2DFD6;
  --stroke:#D9D6CC;
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(14,21,18,.06);
  --shadow-hover:0 14px 30px rgba(14,21,18,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec:96px;
  --container:1240px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-padding-top:132px;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .28s var(--ease),transform .28s var(--ease),background .28s var(--ease),border-color .28s var(--ease);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.container{max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:var(--sec) 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--text-2);font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;}

/* ---------- 双层导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;}
.nav-top{background:var(--primary);color:#EDEFE8;}
.nav-top .container{
  height:68px;display:flex;align-items:center;gap:20px;
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--accent);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
  transition:transform .3s var(--ease);
}
.logo-mark svg{width:20px;height:20px;}
.logo:hover .logo-mark{transform:rotate(-12deg) scale(1.05);}
.logo-text{font-size:19px;font-weight:800;letter-spacing:-.02em;color:#FFFDF7;white-space:nowrap;}
.logo-text span{color:var(--accent);}

.nav-search{
  margin-left:auto;display:flex;align-items:center;
  width:240px;height:40px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  padding:0 6px 0 16px;transition:border-color .28s var(--ease),background .28s var(--ease);
}
.nav-search input{
  flex:1;min-width:0;background:none;border:0;outline:none;color:#FFFDF7;font-size:14px;
}
.nav-search input::placeholder{color:#9AA097;}
.nav-search:focus-within{border-color:var(--accent);background:rgba(255,255,255,.13);}
.nav-search button{
  width:30px;height:30px;border-radius:50%;background:var(--accent);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.nav-search button svg{width:15px;height:15px;}

.search-toggle{display:none;color:#EDEFE8;padding:8px;border-radius:50%;}

.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  font-size:14.5px;color:#C7CCC3;padding:7px 12px;border-radius:var(--r-pill);
}
.nav-links a:hover{color:#FFFDF7;background:rgba(255,255,255,.09);}
.nav-links a.active{color:var(--primary);background:var(--accent);font-weight:600;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:600;font-size:14.5px;
  padding:12px 24px;transition:all .28s var(--ease);white-space:nowrap;
}
.btn svg{width:15px;height:15px;transition:transform .28s var(--ease);}
.btn-primary{background:var(--primary);color:#FFFDF7;border:1px solid var(--primary);}
.btn-primary:hover{background:var(--accent);color:var(--primary);border-color:var(--accent);}
.btn-primary:hover svg{transform:translateX(4px);}
.btn-ghost{background:transparent;color:var(--primary);border:1px solid var(--primary);}
.btn-ghost:hover{background:var(--primary);color:#FFFDF7;}
.btn-accent{background:var(--accent-2);color:#FFFDF7;border:1px solid var(--accent-2);}
.btn-accent:hover{background:#E8431F;border-color:#E8431F;}
.btn-accent:hover svg{transform:translateX(4px);}
.btn:disabled{opacity:.55;cursor:not-allowed;}
.nav-cta{
  background:var(--accent);color:var(--primary);padding:10px 20px;font-size:14px;
  border:1px solid var(--accent);
}
.nav-cta:hover{background:#FFFDF7;border-color:#FFFDF7;color:var(--primary);}

.nav-tabs{
  background:var(--bg-alt);border-bottom:1px solid var(--line);
}
.nav-tabs .container{
  height:48px;display:flex;align-items:center;gap:8px;
  overflow-x:auto;scrollbar-width:none;scroll-snap-type:x proximity;
}
.nav-tabs .container::-webkit-scrollbar{display:none;}
.tab{
  flex:0 0 auto;scroll-snap-align:start;
  font-size:14px;color:var(--text-2);padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid transparent;
}
.tab:hover{color:var(--text);background:rgba(14,21,18,.05);}
.tab.active{background:var(--accent);color:var(--primary);font-weight:700;}

.menu-toggle{
  display:none;color:#EDEFE8;width:40px;height:40px;border-radius:10px;
  border:1px solid rgba(255,255,255,.2);
}
.menu-toggle span{display:block;width:18px;height:2px;background:currentColor;margin:4px auto;border-radius:2px;}

/* ---------- 分类头 ---------- */
.cat-head{
  position:relative;overflow:hidden;background:var(--primary);color:#FFFDF7;
  padding:64px 0 56px;
}
.cat-head-bg{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  opacity:.34;object-position:center 40%;
}
.cat-head::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,21,18,.94) 0%,rgba(14,21,18,.78) 55%,rgba(14,21,18,.5) 100%);
}
.cat-head .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;
  color:#A9AFA6;margin-bottom:22px;flex-wrap:wrap;
}
.breadcrumb a{color:#A9AFA6;}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:#5C6357;}
.breadcrumb .current{color:#FFFDF7;}
.cat-head .eyebrow{color:var(--accent);}
.cat-head .eyebrow::before{background:var(--accent-2);}
.cat-head h1{
  font-size:clamp(2rem,5vw,3.4rem);line-height:1.08;font-weight:800;
  letter-spacing:-.02em;margin:16px 0 16px;max-width:17em;
}
.cat-lead{max-width:62ch;color:#C8CDC4;font-size:16.5px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{
  font-size:13px;padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.24);color:#DCE0D8;
}
.tag.solid{background:var(--accent);color:var(--primary);border-color:var(--accent);font-weight:700;}

/* ---------- 主体：锚点 + 长内容 ---------- */
.cat-body{padding:80px 0 var(--sec);}
.cat-grid{display:grid;grid-template-columns:250px 1fr;gap:56px;align-items:start;}
.side-nav{position:sticky;top:136px;}
.side-nav h2{
  font-size:13px;letter-spacing:.1em;color:var(--text-3);font-weight:700;
  text-transform:uppercase;margin-bottom:14px;
}
.side-nav ol{border-left:1px solid var(--line);}
.side-nav li a{
  display:block;padding:10px 0 10px 18px;font-size:14.5px;color:var(--text-2);
  border-left:3px solid transparent;margin-left:-2px;
}
.side-nav li a:hover{color:var(--primary);border-left-color:var(--accent);}
.side-nav li a.active{color:var(--primary);font-weight:700;border-left-color:var(--accent);}
.side-cta{
  margin-top:28px;padding:22px;border-radius:var(--r-card);
  background:var(--bg-alt);border:1px solid var(--line);
}
.side-cta p{font-size:14px;color:var(--text-2);margin-bottom:14px;}
.side-cta .btn{width:100%;padding:11px 18px;font-size:14px;}

.flow{display:flex;flex-direction:column;gap:64px;}
.flow-block{
  display:grid;grid-template-columns:5fr 7fr;gap:36px;align-items:center;
  padding-bottom:64px;border-bottom:1px solid var(--line);
}
.flow-block:last-child{border-bottom:0;padding-bottom:0;}
.flow-block.reverse{grid-template-columns:7fr 5fr;}
.flow-block.reverse .flow-media{order:2;}
.flow-block.reverse .flow-text{order:1;}
.flow-media{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);background:var(--bg-alt);}
.flow-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .42s var(--ease);}
.flow-block:hover .flow-media img{transform:scale(1.03);}
.flow-media .vlabel{
  position:absolute;left:12px;top:12px;writing-mode:vertical-rl;
  font-size:12px;letter-spacing:.16em;color:var(--primary);
  background:var(--accent);border-radius:var(--r-pill);padding:10px 6px;font-weight:700;
}
.flow-text h2{
  font-size:clamp(1.5rem,3vw,2.1rem);line-height:1.24;font-weight:700;letter-spacing:-.01em;
  margin-bottom:14px;position:relative;padding-left:16px;
}
.flow-text h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;
  background:var(--accent);border-radius:3px;
}
.flow-text>p{color:var(--text-2);margin-bottom:18px;}
.point-list{display:flex;flex-direction:column;gap:12px;}
.point-list li{
  display:flex;gap:12px;font-size:15.5px;color:var(--text);
  padding:12px 16px;border-radius:12px;background:var(--bg-alt);border:1px solid var(--line);
}
.point-list li strong{color:var(--primary);font-weight:700;}
.point-list li svg{width:16px;height:16px;flex-shrink:0;margin-top:5px;color:var(--accent-2);}

/* ---------- 数据条 ---------- */
.stat-band{
  background:var(--primary);color:#FFFDF7;border-radius:18px;padding:44px 40px;
  display:grid;grid-template-columns:repeat(2,1fr);gap:32px;margin:72px 0;
}
.stat-item{display:flex;flex-direction:column;gap:8px;padding-left:22px;border-left:3px solid var(--accent);}
.stat-item .num{font-size:clamp(2rem,4vw,2.7rem);font-weight:800;color:var(--accent);line-height:1.1;letter-spacing:-.02em;}
.stat-item .label{font-size:15px;color:#C8CDC4;}
.stat-item .desc{font-size:14px;color:#9AA097;}

/* ---------- FAQ ---------- */
.faq-wrap{margin-top:80px;}
.section-head{margin-bottom:32px;}
.section-head h2{
  font-size:clamp(1.5rem,3vw,2.1rem);font-weight:700;letter-spacing:-.01em;margin:12px 0 10px;
}
.section-head p{color:var(--text-2);max-width:60ch;}
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);position:relative;}
.faq-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:3px;
  background:var(--accent);opacity:0;transition:opacity .2s var(--ease);
}
.faq-item.open::before{opacity:1;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  text-align:left;padding:22px 12px 22px 20px;font-size:16.5px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--primary);}
.faq-icon{position:relative;width:18px;height:18px;flex-shrink:0;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
  transition:transform .18s var(--ease),opacity .18s var(--ease);
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{top:0;left:8px;width:2px;height:18px;}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{
  display:grid;grid-template-rows:0fr;
  transition:grid-template-rows .28s var(--ease);
}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a>div{overflow:hidden;}
.faq-a p{padding:0 20px 24px 20px;color:var(--text-2);font-size:15.5px;max-width:76ch;}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--primary);color:#FFFDF7;}
.cta-band img.cta-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.3;}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(14,21,18,.95) 0%,rgba(14,21,18,.82) 50%,rgba(14,21,18,.62) 100%);
}
.cta-band .container{position:relative;z-index:2;padding-top:76px;padding-bottom:76px;}
.cta-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
.cta-inner h2{font-size:clamp(1.6rem,3.4vw,2.3rem);font-weight:800;letter-spacing:-.02em;line-height:1.16;margin-bottom:14px;}
.cta-inner p{color:#C8CDC4;font-size:15.5px;max-width:52ch;}
.cta-form{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:16px;padding:26px;}
.cta-form label{display:block;font-size:13px;letter-spacing:.06em;color:#A9AFA6;margin-bottom:10px;}
.field-row{display:flex;gap:10px;}
.field-row input{
  flex:1;min-width:0;height:48px;border-radius:var(--r-input);
  border:1px solid rgba(255,255,255,.22);background:rgba(0,0,0,.24);
  color:#FFFDF7;padding:0 16px;outline:none;font-size:15px;
  transition:border-color .28s var(--ease);
}
.field-row input::placeholder{color:#848A80;}
.field-row input:focus{border-color:var(--accent);}
.field-row input.error{border-color:#D8402A;}
.field-row .btn{height:48px;padding:0 22px;}
.form-msg{font-size:13px;margin-top:10px;min-height:19px;color:#A9AFA6;}
.form-msg.err{color:#FF9C86;}
.form-msg.ok{color:var(--accent);}
.spinner{
  width:16px;height:16px;border-radius:50%;border:2px solid rgba(14,21,18,.3);
  border-top-color:var(--primary);animation:spin .7s linear infinite;display:none;
}
.btn.loading .spinner{display:block;}
.btn.loading .btn-label{opacity:.7;}
@keyframes spin{to{transform:rotate(360deg);}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary);color:#B7BDB3;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.3fr .8fr .8fr 1.1fr;gap:44px;}
.footer-brand .logo-text{font-size:20px;}
.footer-brand p{margin-top:18px;font-size:14.5px;max-width:34ch;color:#9AA097;}
.footer-col h3{font-size:14px;color:#FFFDF7;font-weight:700;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14.5px;color:#B7BDB3;display:inline-block;}
.footer-col a:hover{color:var(--accent);transform:translateX(2px);}
.footer-sub p{font-size:14.5px;color:#9AA097;margin-bottom:14px;}
.footer-sub form{display:flex;gap:8px;}
.footer-sub input{
  flex:1;min-width:0;height:44px;border-radius:var(--r-input);
  border:1px solid rgba(255,255,255,.2);background:rgba(0,0,0,.24);
  color:#FFFDF7;padding:0 14px;outline:none;font-size:14px;
}
.footer-sub input::placeholder{color:#848A80;}
.footer-sub input:focus{border-color:var(--accent);}
.footer-sub .btn{height:44px;padding:0 18px;font-size:14px;}
.footer-sub .form-msg{color:#9AA097;}
.footer-sub .form-msg.ok{color:var(--accent);}
.footer-sub .form-msg.err{color:#FF9C86;}
.legal{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:#7D837A;
}
.legal a{color:#7D837A;}
.legal a:hover{color:var(--accent);}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:22px;width:44px;height:44px;border-radius:50%;
  background:var(--primary);color:var(--accent);display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(14,21,18,.28);opacity:0;pointer-events:none;
  transform:translateY(8px);transition:all .3s var(--ease);z-index:70;
}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0);}
.to-top:hover{background:var(--accent);color:var(--primary);}

/* ---------- 进入动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);animation:rise .5s var(--ease) forwards;}
.reveal.d1{animation-delay:.08s;}
.reveal.d2{animation-delay:.16s;}
.reveal.d3{animation-delay:.24s;}
@keyframes rise{to{opacity:1;transform:translateY(0);}}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1080px;}
}
@media (max-width:1023px){
  :root{--sec:72px;}
  .container{padding:0 24px;}
  .nav-search{width:200px;}
  .nav-links{display:none;}
  .menu-toggle{display:block;}
  .cat-grid{grid-template-columns:1fr;gap:36px;}
  .side-nav{position:static;}
  .side-nav ol{display:flex;flex-wrap:wrap;border-left:0;gap:8px;}
  .side-nav li a{border-left:0;border:1px solid var(--line);border-radius:var(--r-pill);padding:8px 16px;margin:0;}
  .side-nav li a:hover,.side-nav li a.active{border-color:var(--primary);background:var(--bg-alt);}
  .side-cta{display:none;}
  .flow-block,.flow-block.reverse{grid-template-columns:1fr;gap:24px;}
  .flow-block.reverse .flow-media{order:0;}
  .flow{display:flex;flex-direction:column;}
  .cta-inner{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cat-head{padding:52px 0 46px;}
}
@media (max-width:767px){
  :root{--sec:48px;}
  .container{padding:0 20px;}
  body{font-size:15.5px;}
  .nav-search{display:none;}
  .nav-search.open{
    display:flex;position:absolute;left:0;right:0;top:68px;
    width:auto;margin:0;border-radius:0;background:var(--primary);
    border-left:0;border-right:0;border-top:0;height:56px;padding:0 20px;
  }
  .nav-top .container{position:relative;gap:12px;}
  .logo-text{font-size:17px;}
  .nav-cta{display:none;}
  .menu-toggle{display:block;margin-left:auto;}
  .stat-band{grid-template-columns:1fr;padding:32px 24px;gap:24px;margin:56px 0;}
  .field-row{flex-direction:column;}
  .field-row .btn{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-sub form{flex-direction:column;}
  .footer-sub .btn{width:100%;justify-content:center;}
  .cat-head h1{font-size:clamp(1.75rem,7.5vw,2.4rem);}
  .flow-block{padding-bottom:48px;}
  .flow{gap:48px;}
  .point-list li{font-size:15px;}
  .to-top{right:16px;bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --primary:#0E1512;
  --accent:#D6F84C;
  --accent-2:#FF5A36;
  --bg:#F7F6F2;
  --bg-alt:#EFEDE6;
  --text:#12140F;
  --text-2:#5A5F55;
  --text-3:#8A8F84;
  --line:#E2DFD6;
  --border:#D9D6CC;
  --card:#FFFFFF;
  --radius-card:14px;
  --radius-img:12px;
  --radius-input:10px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(14,21,18,.06);
  --shadow-md:0 12px 28px rgba(14,21,18,.10);
  --shadow-lg:0 20px 48px rgba(14,21,18,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:60px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.skip-link{position:absolute;left:-9999px;top:0;z-index:200;background:var(--accent);color:var(--primary);padding:10px 18px;border-radius:0 0 10px 0;font-size:14px}
.skip-link:focus{left:0}

/* ---------- 按钮体系 ---------- */
.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;cursor:pointer;
  transition:background-color .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease),transform .28s var(--ease),box-shadow .28s var(--ease);
}
.btn svg{width:16px;height:16px;transition:transform .28s var(--ease)}
.btn-primary{background:var(--primary);color:#F7F6F2}
.btn-primary:hover{background:var(--accent);color:var(--primary);box-shadow:0 10px 24px rgba(14,21,18,.16)}
.btn-primary:hover svg{transform:translateX(4px)}
.btn-ghost{border-color:var(--border);color:var(--text);background:transparent}
.btn-ghost:hover{background:var(--primary);color:#F7F6F2;border-color:var(--primary)}
.btn-hot{background:var(--accent-2);color:#FFFFFF}
.btn-hot:hover{background:#E84523;color:#FFFFFF}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn .spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.45);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite;display:none}
.btn.is-loading .spinner{display:block}
.btn.is-loading .btn-label{opacity:.72}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 导航 ---------- */
.site-header{position:relative;z-index:60}
.nav-top{background:var(--primary);position:relative}
.nav-top .container{display:flex;align-items:center;gap:18px;height:68px;position:relative}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:34px;height:34px;border-radius:11px;background:var(--accent);display:grid;place-items:center}
.logo-mark svg{width:19px;height:19px}
.logo-text{font-size:19px;font-weight:800;letter-spacing:-.02em;color:#F7F6F2;white-space:nowrap}
.logo-text span{color:var(--accent)}
.nav-search{
  margin-left:auto;display:flex;align-items:center;gap:6px;
  width:240px;height:40px;padding:0 6px 0 16px;
  background:#F7F6F2;border-radius:var(--radius-pill);border:1px solid transparent;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.nav-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(214,248,76,.28)}
.nav-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search button{width:30px;height:30px;flex-shrink:0;border:0;border-radius:var(--radius-pill);background:var(--accent);display:grid;place-items:center;cursor:pointer;transition:transform .24s var(--ease)}
.nav-search button:hover{transform:scale(1.06)}
.nav-search button svg{width:15px;height:15px}
.search-toggle{display:none;width:38px;height:38px;border-radius:var(--radius-pill);border:1px solid rgba(247,246,242,.28);background:transparent;color:#F7F6F2;align-items:center;justify-content:center;cursor:pointer;transition:border-color .24s var(--ease),color .24s var(--ease)}
.search-toggle:hover{border-color:var(--accent);color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:20px}
.nav-links a{font-size:14.5px;color:#B4BAB0;padding:4px 0;position:relative;transition:color .24s var(--ease)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--accent);transition:width .28s var(--ease)}
.nav-links a:hover{color:#F7F6F2}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:#F7F6F2}
.nav-links a.active::after{width:100%}
.nav-cta{padding:10px 18px;font-size:14px;background:var(--accent);color:var(--primary);flex-shrink:0}
.nav-cta:hover{background:#F7F6F2;color:var(--primary)}
.nav-tabs{position:sticky;top:0;z-index:50;background:var(--bg-alt);border-bottom:1px solid var(--line);transition:box-shadow .3s var(--ease)}
.nav-tabs.is-scrolled{box-shadow:0 8px 20px rgba(14,21,18,.09)}
.nav-tabs .container{display:flex;align-items:center;gap:10px;height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;scroll-snap-type:x proximity}
.nav-tabs .container::-webkit-scrollbar{display:none}
.tab{flex-shrink:0;scroll-snap-align:start;padding:7px 16px;border-radius:var(--radius-pill);font-size:14px;color:var(--text-2);border:1px solid transparent;white-space:nowrap;transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease)}
.tab:hover{color:var(--text);border-color:var(--border)}
.tab.active{background:var(--accent);color:var(--primary);font-weight:600}

/* ---------- 文章首屏 ---------- */
.post-hero{position:relative;background:#0E1512;color:#F7F6F2;overflow:hidden}
.post-hero::before{content:"";position:absolute;inset:0;background-image:url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center;opacity:.30}
.post-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,21,18,.82) 0%,rgba(14,21,18,.94) 100%)}
.post-hero .container{position:relative;z-index:2;padding-top:28px;padding-bottom:64px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;color:#9AA096}
.crumbs a{transition:color .24s var(--ease)}
.crumbs a:hover{color:var(--accent)}
.crumbs .sep{color:#5C6259}
.crumbs .current{color:#E6E4DC;max-width:44ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.badge{
  display:inline-flex;align-items:center;gap:6px;margin-top:30px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:var(--accent);color:var(--primary);font-size:13px;font-weight:600;letter-spacing:.04em;
}
.post-hero h1{
  font-size:clamp(1.85rem,4.4vw,3rem);
  font-weight:800;line-height:1.16;letter-spacing:-.02em;
  max-width:900px;margin-top:20px;color:#F7F6F2;
}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:26px;font-size:13px;color:#A9AFA4;letter-spacing:.06em}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:#5C6259;display:inline-block}
.share-btn{
  display:inline-flex;align-items:center;gap:6px;padding:7px 14px;
  border-radius:var(--radius-pill);border:1px solid rgba(247,246,242,.26);
  background:transparent;color:#F7F6F2;font-size:13px;cursor:pointer;
  transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.share-btn:hover{background:var(--accent);color:var(--primary);border-color:var(--accent)}

/* ---------- 文章布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start;padding:56px 0 88px}
.article-main{max-width:780px;width:100%}
.article-body{font-size:17.5px;line-height:1.9;color:var(--text);word-wrap:break-word}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.5em}
.article-body h2{
  font-size:clamp(1.4rem,2.6vw,1.75rem);font-weight:700;line-height:1.34;
  margin:2em 0 .9em;padding-left:16px;border-left:4px solid var(--accent);
}
.article-body h3{font-size:1.25rem;font-weight:600;line-height:1.45;margin:1.7em 0 .7em}
.article-body h4{font-size:1.08rem;font-weight:600;margin:1.4em 0 .6em}
.article-body h2+p,.article-body h3+p{margin-top:0}
.article-body ul{margin:0 0 1.5em;padding-left:4px}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:.6em}
.article-body ul li::before{content:"";position:absolute;left:0;top:.76em;width:7px;height:7px;border-radius:2px;background:var(--accent)}
.article-body ol{margin:0 0 1.5em;padding-left:1.5em;list-style:decimal}
.article-body ol li{margin-bottom:.6em}
.article-body ol li::marker{color:var(--primary);font-weight:700}
.article-body blockquote{
  margin:1.8em 0;padding:18px 22px;background:var(--bg);
  border-left:4px solid var(--primary);border-radius:0 var(--radius-img) var(--radius-img) 0;
  color:var(--text-2);font-size:16.5px;
}
.article-body img{width:100%;margin:1.6em 0;border-radius:var(--radius-img);border:1px solid var(--line)}
.article-body figure{margin:1.8em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;letter-spacing:.06em}
.article-body a{color:var(--primary);border-bottom:1px solid var(--accent);transition:background-color .24s var(--ease)}
.article-body a:hover{background:rgba(214,248,76,.38)}
.article-body strong{font-weight:700}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
.article-body table{width:100%;border-collapse:collapse;margin:1.8em 0;font-size:15px;border:1px solid var(--line);border-radius:var(--radius-img);overflow:hidden}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:var(--bg-alt);font-weight:700;font-size:14px}
.article-body tbody tr:nth-child(even){background:#FAF9F5}
.article-body tbody tr:last-child td{border-bottom:0}

/* ---------- 标签 / 返回栏 ---------- */
.tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line)}
.tags .tags-label{font-size:13px;color:var(--text-3);letter-spacing:.06em;margin-right:4px}
.tag{
  padding:7px 15px;border-radius:var(--radius-pill);border:1px solid var(--border);
  font-size:13.5px;color:var(--text-2);background:transparent;
  transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.tag:hover{background:var(--primary);color:#F7F6F2;border-color:var(--primary)}
.back-bar{
  margin-top:32px;padding:22px 24px;border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--bg-alt);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.back-bar .back-title{font-size:15px;font-weight:600}
.back-bar .back-sub{font-size:13px;color:var(--text-3);margin-top:4px}

/* ---------- 空态 ---------- */
.empty-state{border:1px dashed var(--border);border-radius:var(--radius-card);padding:56px 24px;text-align:center;background:var(--bg-alt)}
.empty-state .empty-icon{width:52px;height:52px;margin:0 auto 18px;border-radius:16px;background:#FFFFFF;border:1px solid var(--line);display:grid;place-items:center}
.empty-state p{font-size:16px;color:var(--text-2);margin-bottom:20px}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:80px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-sm)}
.side-card h3{font-size:15px;font-weight:700;display:flex;align-items:center;gap:8px;margin-bottom:14px}
.side-card h3::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--accent)}
.info-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--text-3);padding:9px 0;border-bottom:1px dashed var(--line)}
.info-row:last-child{border-bottom:0}
.info-row span:last-child{color:var(--text);font-weight:600;max-width:15ch;text-align:right}
.side-list li{border-bottom:1px dashed var(--line)}
.side-list li:last-child{border-bottom:0}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 0;font-size:14px;color:var(--text-2);transition:color .24s var(--ease),padding-left .24s var(--ease)}
.side-list a:hover{color:var(--primary);padding-left:4px}
.side-list .mini-time{font-size:12.5px;color:var(--text-3);letter-spacing:.06em;flex-shrink:0}

/* ---------- 相关推荐 ---------- */
.related{background:var(--bg-alt);border-top:1px solid var(--line);padding:72px 0}
.related-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px}
.related-head h2{font-size:clamp(1.4rem,2.6vw,1.8rem);font-weight:700;letter-spacing:-.01em}
.related-head p{font-size:14px;color:var(--text-2);margin-top:8px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rec-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease)}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--border)}
.rec-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg-alt);border-bottom:1px solid var(--line)}
.rec-card img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.rec-card:hover img{transform:scale(1.03)}
.rec-body{padding:18px 20px 22px}
.rec-body h3{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-meta{font-size:12.5px;color:var(--text-3);letter-spacing:.06em;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.rec-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--border)}

/* ---------- 订阅 CTA ---------- */
.cta-band{position:relative;background:#0E1512;color:#F7F6F2;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background-image:url("/assets/images/backpic/back-1.png");background-size:cover;background-position:center;opacity:.22}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,21,18,.78),rgba(14,21,18,.92))}
.cta-band .container{position:relative;z-index:2}
.cta-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:76px 0}
.cta-inner h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:700;line-height:1.28;letter-spacing:-.01em}
.cta-inner .cta-desc{font-size:15.5px;color:#A9AFA4;margin-top:16px;max-width:44ch}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.cta-points span{font-size:13px;color:#D6DACF;padding:6px 14px;border-radius:var(--radius-pill);border:1px solid rgba(247,246,242,.22)}
.sub-form{display:flex;gap:10px;flex-wrap:wrap}
.sub-form input{
  flex:1;min-width:200px;height:48px;padding:0 18px;
  border-radius:var(--radius-input);border:1px solid rgba(247,246,242,.24);
  background:rgba(247,246,242,.06);color:#F7F6F2;outline:none;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.sub-form input::placeholder{color:#8A9086}
.sub-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(214,248,76,.22)}
.sub-form input.is-error{border-color:#D8402A}
.sub-form .btn{height:48px}
.form-tip{font-size:13px;color:#9AA096;margin-top:12px;min-height:18px}
.form-tip.is-error{color:#FF8A6E}
.form-tip.is-ok{color:var(--accent)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary);color:#C9CEC4}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:72px 0 48px}
.footer-brand .logo{margin-bottom:18px}
.footer-desc{font-size:14px;line-height:1.85;color:#9AA096;max-width:36ch}
.footer-col h4{font-size:14px;font-weight:700;color:#F7F6F2;margin-bottom:16px;letter-spacing:.04em}
.footer-col li{margin-bottom:10px}
.footer-col a{display:inline-block;font-size:14px;color:#9AA096;transition:color .24s var(--ease),transform .24s var(--ease)}
.footer-col a:hover{color:var(--accent);transform:translateX(2px)}
.footer-sub p{font-size:14px;color:#9AA096;margin-bottom:14px}
.footer-sub .sub-form input{min-width:0;height:44px;background:rgba(247,246,242,.06)}
.footer-sub .sub-form .btn{height:44px;padding:0 18px;font-size:14px}
.footer-bottom{border-top:1px solid rgba(247,246,242,.12);padding:20px 0 30px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:#7E847A;letter-spacing:.04em}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;
  background:var(--primary);color:var(--accent);border:1px solid rgba(214,248,76,.4);
  display:grid;place-items:center;cursor:pointer;z-index:70;
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),background-color .24s var(--ease),color .24s var(--ease);
}
.to-top.is-visible{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{background:var(--accent);color:var(--primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1080px}
  .article-layout{gap:44px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-search{width:200px}
  .article-layout{grid-template-columns:1fr;gap:36px;padding:44px 0 68px}
  .article-main{max-width:none}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap;gap:18px}
  .side-card{flex:1 1 260px}
  .related-grid{grid-template-columns:1fr 1fr}
  .cta-inner{grid-template-columns:1fr;gap:34px;padding:60px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 36px}
  .post-hero .container{padding-bottom:52px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .nav-top .container{gap:12px}
  .nav-search{display:none}
  .search-toggle{display:flex;margin-left:auto}
  .nav-top.search-open .nav-search{
    display:flex;position:fixed;left:16px;right:16px;top:14px;width:auto;z-index:120;height:44px;
  }
  .nav-cta{display:none}
  .logo-text{font-size:17.5px}
  .article-body{font-size:17px;line-height:1.88}
  .article-body h2{margin-top:1.7em}
  .related-grid{grid-template-columns:1fr}
  .related{padding:52px 0}
  .cta-inner{padding:48px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 28px}
  .footer-bottom{justify-content:flex-start}
  .post-hero h1{font-size:clamp(1.6rem,7vw,2.1rem)}
  .crumbs .current{max-width:24ch}
  .article-layout{padding:32px 0 56px}
  .to-top{right:16px;bottom:16px}
}
@media (max-width:520px){
  .btn{width:100%}
  .btn.btn-sm{width:auto}
  .nav-tabs .container{gap:8px}
  .sub-form .btn{width:100%}
  .back-bar{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .rec-card:hover,.to-top{transform:none !important}
}

/* roulang page: category2 */
:root{
  --primary:#0E1512;
  --accent:#D6F84C;
  --accent-2:#FF5A36;
  --bg:#F7F6F2;
  --bg-alt:#EFEDE6;
  --text:#12140F;
  --text-2:#5A5F55;
  --text-3:#8A8F84;
  --line:#E2DFD6;
  --stroke:#D9D6CC;
  --white:#FFFFFF;
  --radius-card:14px;
  --radius-img:12px;
  --radius-input:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(14,21,18,.06);
  --shadow-2:0 14px 30px rgba(14,21,18,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:132px}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:0;background:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 32px;
}
.section{padding:var(--sec) 0}
.section-alt{background:var(--bg-alt)}
.band{background:var(--primary);color:#fff;padding:var(--sec) 0}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:70;background:var(--primary)}
.nav-top{height:68px;display:flex;align-items:center;background:var(--primary)}
.nav-top .container{display:flex;align-items:center;gap:18px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--accent);
  display:grid;place-items:center;flex:none;
  transition:transform .28s var(--ease);
}
.logo:hover .logo-mark{transform:rotate(-8deg)}
.logo-mark svg{width:20px;height:20px}
.logo-text{font-size:18px;font-weight:800;letter-spacing:-.02em;color:#fff;white-space:nowrap}
.logo-text span{color:var(--accent)}
.nav-search{
  margin-left:auto;display:flex;align-items:center;
  width:240px;height:40px;background:#fff;border-radius:var(--radius-pill);
  padding:0 5px 0 16px;border:2px solid transparent;
  transition:border-color .2s var(--ease);
}
.nav-search:focus-within{border-color:var(--accent)}
.nav-search input{
  flex:1;min-width:0;border:0;background:transparent;height:100%;
  font-size:14px;color:var(--text);
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{outline:none}
.nav-search button{
  width:32px;height:32px;border-radius:50%;background:var(--accent);
  display:grid;place-items:center;flex:none;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.nav-search button svg{width:16px;height:16px}
.nav-search button:hover{background:var(--accent-2);transform:translateX(2px)}
.search-toggle{display:none;color:#fff;width:38px;height:38px;border-radius:50%;place-items:center;border:1px solid rgba(255,255,255,.24)}
.nav-links{display:flex;align-items:center;gap:20px;margin-left:8px}
.nav-links a{
  font-size:14.5px;color:rgba(255,255,255,.72);position:relative;
  padding:4px 0;transition:color .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);transition:width .28s var(--ease);
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:var(--accent)}
.nav-links a.active::after{width:100%}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .24s var(--ease),color .24s var(--ease),transform .24s var(--ease),border-color .24s var(--ease);
}
.btn svg{width:16px;height:16px;transition:transform .24s var(--ease)}
.btn-primary{background:var(--primary);color:var(--bg)}
.btn-primary:hover{background:var(--accent);color:var(--primary)}
.btn-primary:hover svg{transform:translateX(4px)}
.btn-ghost{border:1px solid var(--primary);color:var(--primary);background:transparent}
.btn-ghost:hover{background:var(--primary);color:#fff}
.btn-accent{background:var(--accent);color:var(--primary)}
.btn-accent:hover{background:var(--accent-2);color:#fff}
.nav-cta{height:40px;padding:0 18px;font-size:14px;background:var(--accent);color:var(--primary);flex:none}
.nav-cta:hover{background:#fff;color:var(--primary)}
.nav-tabs{background:var(--bg-alt);border-bottom:1px solid var(--line)}
.nav-tabs .container{
  display:flex;align-items:center;gap:10px;height:48px;
  overflow-x:auto;scrollbar-width:none;scroll-snap-type:x proximity;
}
.nav-tabs .container::-webkit-scrollbar{display:none}
.tab{
  flex:none;scroll-snap-align:start;
  padding:7px 16px;border-radius:var(--radius-pill);
  font-size:14px;color:var(--text-2);border:1px solid transparent;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.tab:hover{color:var(--text);border-color:var(--stroke)}
.tab.active{background:var(--accent);color:var(--primary);font-weight:700}

/* ---------- 分类头 ---------- */
.cat-hero{position:relative;padding:56px 0 52px;background:var(--primary);color:#fff;overflow:hidden}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.3;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,21,18,.94) 0%,rgba(14,21,18,.78) 48%,rgba(14,21,18,.42) 100%);
}
.cat-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.06em;color:rgba(255,255,255,.62);margin-bottom:22px;
}
.breadcrumb a{transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:rgba(255,255,255,.34)}
.breadcrumb .current{color:#fff}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);display:block}
.cat-hero h1{
  font-size:clamp(2rem,5vw,3.4rem);line-height:1.08;font-weight:800;
  letter-spacing:-.02em;max-width:16em;
}
.cat-hero .lead{
  margin-top:18px;max-width:44em;font-size:16.5px;line-height:1.8;
  color:rgba(255,255,255,.78);
}
.tag-wall{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 15px;border-radius:var(--radius-pill);
  font-size:13.5px;border:1px solid rgba(255,255,255,.3);
  color:rgba(255,255,255,.86);
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.pill:hover{background:var(--accent);color:var(--primary);border-color:var(--accent)}
.pill-solid{background:rgba(214,248,76,.16);border-color:rgba(214,248,76,.42);color:var(--accent)}

/* ---------- 区块标题 ---------- */
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:40px}
.section-head h2{font-size:clamp(1.5rem,3vw,2.1rem);line-height:1.2;font-weight:700;letter-spacing:-.01em}
.section-head .sub{margin-top:10px;font-size:15.5px;color:var(--text-2);max-width:46em}
.link-more{
  font-size:14.5px;font-weight:600;color:var(--text);position:relative;padding-bottom:3px;
}
.link-more::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);
  transition:width .28s var(--ease);
}
.link-more:hover::after{width:100%}
.light .sub{color:rgba(255,255,255,.7)}
.light h2{color:#fff}
.light .link-more{color:#fff}

/* ---------- 卡片墙 ---------- */
.wall{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;align-items:start}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--stroke)}
.card-media{position:relative;overflow:hidden;background:var(--bg-alt)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.r-tall .card-media{aspect-ratio:4/3.4}
.r-mid .card-media{aspect-ratio:16/9.4}
.r-short .card-media{aspect-ratio:16/7.6}
.card-tag{
  position:absolute;left:14px;top:14px;z-index:2;
  padding:5px 12px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:700;letter-spacing:.04em;
  background:var(--accent);color:var(--primary);
}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:1.19rem;line-height:1.42;font-weight:600}
.card-body p{font-size:15px;color:var(--text-2);line-height:1.72}
.card-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;letter-spacing:.05em;color:var(--text-3);
  display:flex;align-items:center;gap:8px;
}
.card-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--stroke)}

/* ---------- 参数对比 ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.spec-card{
  border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-card);
  background:rgba(255,255,255,.04);padding:26px 24px;
  transition:border-color .28s var(--ease),background .28s var(--ease),transform .28s var(--ease);
}
.spec-card:hover{border-color:rgba(214,248,76,.5);background:rgba(214,248,76,.06);transform:translateY(-4px)}
.spec-card h3{font-size:1.16rem;font-weight:700;display:flex;align-items:center;gap:10px}
.spec-card h3 .no{
  width:26px;height:26px;border-radius:50%;background:var(--accent);color:var(--primary);
  font-size:13px;font-weight:800;display:grid;place-items:center;flex:none;
}
.spec-note{margin-top:10px;font-size:14px;color:rgba(255,255,255,.62)}
.spec-rows{margin-top:20px;display:flex;flex-direction:column}
.spec-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:12px 0;border-top:1px solid rgba(255,255,255,.12);font-size:14.5px;
}
.spec-row:first-child{border-top:0}
.spec-row .k{color:rgba(255,255,255,.64);flex:none}
.spec-row .v{color:#fff;font-weight:600;text-align:right}

/* ---------- 使用者反馈 ---------- */
.feedback-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.quote-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 26px;box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;gap:16px;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.quote-mark{font-size:34px;line-height:1;font-weight:800;color:var(--accent)}
.quote-card p{font-size:15.5px;color:var(--text-2);line-height:1.8}
.quote-by{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);font-size:13.5px;color:var(--text-3)}
.quote-by strong{display:block;color:var(--text);font-size:14.5px;font-weight:700;margin-bottom:2px}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;position:relative;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--accent);
  transform:scaleY(0);transform-origin:top;transition:transform .28s var(--ease);
}
.faq-item.open{border-color:var(--stroke);box-shadow:var(--shadow-1)}
.faq-item.open::before{transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 26px;text-align:left;font-size:16.5px;font-weight:600;color:var(--text);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--primary)}
.faq-icon{position:relative;width:18px;height:18px;flex:none}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--text-2);border-radius:2px;
  transition:transform .3s var(--ease),background .3s var(--ease);
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-item.open .faq-icon::before{background:var(--accent-2)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a p{padding:0 26px 22px;font-size:15.5px;line-height:1.85;color:var(--text-2)}

/* ---------- 订阅 CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--primary);color:#fff}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-1.png") center/cover no-repeat;opacity:.26;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(14,21,18,.95) 0%,rgba(14,21,18,.72) 55%,rgba(14,21,18,.5) 100%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:72px 0}
.cta-inner h2{font-size:clamp(1.6rem,3.2vw,2.2rem);line-height:1.2;font-weight:700}
.cta-inner p{margin-top:14px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.76);max-width:34em}
.form-row{display:flex;gap:10px;margin-top:8px}
.form-row input{
  flex:1;min-width:0;height:50px;padding:0 18px;border-radius:var(--radius-input);
  border:1px solid rgba(255,255,255,.26);background:rgba(255,255,255,.08);
  color:#fff;font-size:15px;transition:border-color .22s var(--ease),background .22s var(--ease);
}
.form-row input::placeholder{color:rgba(255,255,255,.5)}
.form-row input:focus{outline:none;border-color:var(--accent);background:rgba(255,255,255,.12)}
.form-row input.is-error{border-color:#D8402A}
.form-row input.is-ok{border-color:var(--accent)}
.form-btn{
  height:50px;padding:0 26px;border-radius:var(--radius-input);
  background:var(--accent);color:var(--primary);font-weight:700;font-size:15px;
  display:inline-flex;align-items:center;gap:8px;flex:none;
  transition:background .24s var(--ease),color .24s var(--ease),opacity .24s var(--ease);
}
.form-btn:hover{background:#fff}
.form-btn[disabled]{opacity:.6;cursor:not-allowed}
.spinner{
  width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(14,21,18,.28);border-top-color:var(--primary);
  animation:spin .7s linear infinite;display:none;
}
.form-btn.is-loading .spinner{display:block}
@keyframes spin{to{transform:rotate(360deg)}}
.form-msg{margin-top:12px;font-size:13.5px;min-height:20px;color:rgba(255,255,255,.6)}
.form-msg.error{color:#FFB3A0}
.form-msg.ok{color:var(--accent)}
.form-note{margin-top:6px;font-size:13px;color:rgba(255,255,255,.5)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary);color:rgba(255,255,255,.72);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand p{font-size:14.5px;line-height:1.8;max-width:26em;color:rgba(255,255,255,.62)}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;letter-spacing:.04em;margin-bottom:18px}
.footer-col li{margin-bottom:12px}
.footer-col a{
  font-size:14.5px;color:rgba(255,255,255,.66);display:inline-block;
  transition:color .22s var(--ease),transform .22s var(--ease);
}
.footer-col a:hover{color:var(--accent);transform:translateX(-2px)}
.footer-sub p{font-size:14.5px;color:rgba(255,255,255,.62);line-height:1.8;margin-bottom:16px}
.footer-sub .btn-ghost{border-color:rgba(255,255,255,.4);color:#fff}
.footer-sub .btn-ghost:hover{background:var(--accent);border-color:var(--accent);color:var(--primary)}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);letter-spacing:.03em;
}
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:80;
  width:44px;height:44px;border-radius:50%;
  background:var(--primary);color:var(--accent);
  display:grid;place-items:center;box-shadow:var(--shadow-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--accent);color:var(--primary)}

/* ---------- 响应式 ---------- */
@media (min-width:1024px) and (max-width:1279px){
  .container{max-width:1080px}
}
@media (max-width:1023px){
  :root{--sec:72px}
  .container{padding:0 24px}
  .nav-search{width:190px}
  .nav-links{gap:14px}
  .nav-links a{font-size:13.5px}
  .cat-hero h1{font-size:clamp(1.75rem,4.4vw,2.6rem)}
  .wall{gap:22px}
  .spec-grid{gap:18px}
  .feedback-grid{grid-template-columns:1fr 1fr}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  :root{--sec:48px}
  .container{padding:0 20px}
  .nav-links{display:none}
  .nav-search{
    position:absolute;left:20px;right:20px;top:14px;width:auto;z-index:90;
    opacity:0;visibility:hidden;transform:translateY(-6px);
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
  }
  body.search-open .nav-search{opacity:1;visibility:visible;transform:translateY(0)}
  body.search-open .nav-links,body.search-open .nav-cta{display:none}
  .search-toggle{display:grid;margin-left:auto}
  .nav-cta{margin-left:0;height:38px;padding:0 14px;font-size:13.5px}
  .nav-top .container{gap:12px}
  .logo-text{font-size:16.5px}
  .wall{grid-template-columns:1fr;gap:20px}
  .spec-grid{grid-template-columns:1fr}
  .feedback-grid{grid-template-columns:1fr}
  .cta-inner{padding:52px 0}
  .form-row{flex-direction:column}
  .form-btn{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;gap:8px}
  .cat-hero{padding:40px 0 38px}
  .section-head{margin-bottom:28px}
  .faq-q{padding:18px 20px;font-size:15.5px}
  .faq-a p{padding:0 20px 20px}
  .to-top{right:16px;bottom:16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}