/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --brand:#FF6A1F;
  --brand-2:#FF8A2B;
  --brand-3:#FFC53D;
  --grad:linear-gradient(135deg,#FF4D1C 0%,#FF8A2B 48%,#FFC53D 100%);
  --purple:#7B61FF;
  --cyan:#22D3C5;
  --bg:#0A0B12;
  --panel:#12141F;
  --card:#191D2B;
  --line:rgba(255,255,255,.08);
  --line-soft:rgba(255,255,255,.06);
  --light:#FBF6F1;
  --t1:#F2F4FF;
  --t2:#A7AEC4;
  --t3:#6E7690;
  --ink:#1B0F06;
  --ok:#34D399;
  --warn:#FFC53D;
  --danger:#FF5C5C;
  --r-xl:28px;
  --r-lg:24px;
  --r-md:20px;
  --r-img:16px;
  --r-in:14px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --shadow-card:0 8px 24px rgba(0,0,0,.45);
  --shadow-hover:0 18px 44px rgba(0,0,0,.55);
}

/* ============ reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--t1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,figure{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(255,106,31,.35);color:#fff;}

/* 滚动条 */
body::-webkit-scrollbar{width:10px;height:10px;}
body::-webkit-scrollbar-track{background:#0A0B12;}
body::-webkit-scrollbar-thumb{background:#232838;border-radius:999px;}
body::-webkit-scrollbar-thumb:hover{background:#2E3446;}
.no-scrollbar{scrollbar-width:none;-ms-overflow-style:none;}
.no-scrollbar::-webkit-scrollbar{display:none;}

/* ============ 容器与通用 ============ */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;position:relative;}
.section + .section{border-top:1px solid transparent;border-image:linear-gradient(90deg,transparent,rgba(255,106,31,.28),rgba(123,97,255,.24),transparent) 1;}
.num{font-variant-numeric:tabular-nums;}

.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.sec-head h2{font-size:34px;line-height:1.3;font-weight:700;letter-spacing:.4px;}
.sec-head p{color:var(--t2);font-size:15px;margin-top:10px;max-width:640px;}
.sec-kicker{display:inline-block;width:34px;height:4px;border-radius:999px;background:var(--grad);margin-bottom:16px;}
.sec-kicker.cyan{background:linear-gradient(135deg,#22D3C5,#7B61FF);}
.link-more{color:var(--t2);font-size:15px;display:inline-flex;align-items:center;gap:8px;transition:color .2s var(--ease);white-space:nowrap;padding-bottom:6px;}
.link-more:hover{color:var(--brand);}
.link-more svg{transition:transform .2s var(--ease);}
.link-more:hover svg{transform:translateX(4px);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.3px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-primary{background:var(--grad);color:var(--ink);box-shadow:0 10px 30px rgba(255,106,31,.28);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(255,106,31,.42);}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 20px rgba(255,106,31,.3);}
.btn-ghost{border:1px solid rgba(255,255,255,.22);color:var(--t1);}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(255,106,31,.65);background:rgba(255,106,31,.08);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-ink{background:var(--ink);color:#fff;}
.btn-ink:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(27,15,6,.45);}
.btn-ink:active{transform:translateY(0);}
.btn-outline-light{border:1px solid rgba(27,15,6,.5);color:var(--ink);}
.btn-outline-light:hover{transform:translateY(-2px);background:rgba(27,15,6,.08);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none!important;box-shadow:none!important;}

/* ============ 标签与徽章 ============ */
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:500;letter-spacing:.4px;
  background:rgba(123,97,255,.14);color:#B9A9FF;border:1px solid rgba(123,97,255,.28);
}
.tag.orange{background:rgba(255,106,31,.12);color:#FFB07A;border-color:rgba(255,106,31,.3);}
.tag.cyan{background:rgba(34,211,197,.12);color:#6CE7DC;border-color:rgba(34,211,197,.3);}
.pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:500;color:var(--t2);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  font-variant-numeric:tabular-nums;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,11,18,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.nav-line{height:1px;background:linear-gradient(90deg,transparent,rgba(255,106,31,.55),rgba(123,97,255,.45),transparent);}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
  box-shadow:0 6px 18px rgba(255,106,31,.32);
}
.brand-mark svg{color:var(--ink);}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.5px;line-height:1.25;color:#fff;}
.nav-main{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 16px;
  border-radius:999px;font-size:14.5px;letter-spacing:.3px;color:var(--t2);
  transition:color .2s var(--ease),background .2s var(--ease),text-shadow .2s var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,106,31,.08);}
.nav-link.active{color:#fff;background:rgba(255,106,31,.10);text-shadow:0 0 12px rgba(255,106,31,.85);}
.nav-link.active::after{
  content:"";position:absolute;left:20%;right:20%;bottom:2px;height:2px;border-radius:999px;background:var(--grad);
}
.nav-side{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--t2);
  transition:all .2s var(--ease);
}
.icon-btn:hover{color:var(--ink);background:var(--grad);border-color:transparent;transform:translateY(-2px);}
.menu-btn{display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;color:var(--t1);}
.menu-btn:hover{border-color:rgba(255,106,31,.6);color:var(--brand);}

/* 移动端抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:380px;z-index:120;
  background:#0F1119;border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;padding:20px 0 24px;
}
.drawer.open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding:0 20px 20px;border-bottom:1px solid var(--line);}
.drawer-nav{padding:8px 0;flex:1;overflow-y:auto;}
.drawer-link{
  position:relative;display:flex;align-items:center;height:56px;padding:0 20px;
  font-size:15.5px;color:var(--t2);transition:color .2s var(--ease),background .2s var(--ease);
}
.drawer-link:hover{color:#fff;background:rgba(255,106,31,.06);}
.drawer-link.active{color:#fff;background:rgba(255,106,31,.08);}
.drawer-link.active::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:999px;background:var(--grad);}
.drawer-foot{padding:0 20px;display:flex;flex-direction:column;gap:14px;}
.drawer-foot p{font-size:12px;color:var(--t3);}
.scrim{position:fixed;inset:0;background:rgba(4,5,10,.6);backdrop-filter:blur(2px);z-index:110;opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s;}
.scrim.open{opacity:1;visibility:visible;}

/* ============ Hero ============ */
.hero{position:relative;min-height:660px;display:flex;align-items:center;overflow:hidden;isolation:isolate;}
.hero-media{position:absolute;inset:0;z-index:-2;}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,11,18,.94) 0%,rgba(10,11,18,.6) 55%,rgba(10,11,18,.18) 100%);
}
.hero-mask{
  position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(10,11,18,.5) 0%,rgba(10,11,18,0) 35%,rgba(10,11,18,.85) 88%,#0A0B12 100%);
}
.hero-inner{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:center;padding-top:56px;padding-bottom:56px;width:100%;}
.hero-copy{max-width:660px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;height:34px;padding:0 16px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  font-size:13px;color:var(--t2);letter-spacing:.4px;backdrop-filter:blur(6px);
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(52,211,153,.18);}
.hero h1{
  font-size:48px;line-height:1.22;font-weight:700;letter-spacing:.5px;margin:24px 0 18px;
  color:#fff;
}
.hero-sub{font-size:17px;color:var(--t2);line-height:1.9;max-width:600px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-stats{display:flex;align-items:center;gap:0;margin-top:44px;flex-wrap:wrap;}
.hero-stats .stat{padding:0 26px;border-left:1px solid rgba(255,255,255,.12);}
.hero-stats .stat:first-child{padding-left:0;border-left:0;}
.hero-stats strong{display:block;font-size:28px;font-weight:700;line-height:1.2;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums;}
.hero-stats span{font-size:13px;color:var(--t3);letter-spacing:.3px;}

.hero-float{
  align-self:end;justify-self:end;
  display:flex;align-items:center;gap:14px;
  padding:14px;border-radius:var(--r-md);
  background:rgba(18,20,31,.82);border:1px solid var(--line);
  backdrop-filter:blur(12px);
  box-shadow:var(--shadow-card);max-width:300px;
}
.hero-float img{width:96px;height:64px;object-fit:cover;border-radius:12px;flex-shrink:0;}
.hero-float strong{display:block;font-size:14px;color:#fff;line-height:1.5;}
.hero-float small{font-size:12px;color:var(--t3);}

/* ============ 合集目录 ============ */
.section-catalog{padding-top:72px;}
.catalog{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;}
.cat-row{
  position:relative;display:flex;align-items:center;gap:18px;
  min-height:80px;padding:14px 8px;border-bottom:1px solid var(--line-soft);
  transition:transform .22s var(--ease),background .22s var(--ease);
}
.cat-row::before{
  content:"";position:absolute;left:-8px;top:16px;bottom:16px;width:3px;border-radius:999px;
  background:var(--grad);opacity:0;transition:opacity .22s var(--ease);
}
.cat-row:hover{transform:translateX(4px);background:var(--card);border-radius:14px;}
.cat-row:hover::before{opacity:1;}
.cat-num{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
  background:rgba(255,106,31,.10);border:1px solid rgba(255,106,31,.32);color:#FFB07A;
}
.cat-body{flex:1;min-width:0;}
.cat-title{display:block;font-size:17px;font-weight:600;color:var(--t1);line-height:1.5;}
.cat-desc{display:block;font-size:13.5px;color:var(--t3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px;}
.cat-meta{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.cat-arrow{color:var(--t3);transition:color .2s var(--ease),transform .2s var(--ease);display:flex;}
.cat-row:hover .cat-arrow{color:var(--brand);transform:translateX(3px);}

/* ============ 精选条目（亮面） ============ */
.section-feature{
  background:var(--light);border-radius:var(--r-lg);margin:0 24px;
  padding:80px 0;color:#1A1B22;
}
.section-feature .container{padding:0 40px;}
.section-feature .sec-head h2{color:#1A1B22;}
.section-feature .sec-head p{color:#5A6070;}
.section-feature .link-more{color:#5A6070;}
.section-feature .link-more:hover{color:#E4470F;}
.feature-grid{display:grid;gap:24px;}
.feature-card{
  display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:0;
  background:#fff;border-radius:var(--r-md);overflow:hidden;
  border:1px solid rgba(26,27,34,.06);
  box-shadow:0 12px 32px rgba(26,27,34,.08);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 20px 48px rgba(26,27,34,.14);}
.feature-card.reverse{grid-template-columns:minmax(0,7fr) minmax(0,5fr);}
.feature-card.reverse .fc-media{order:2;}
.fc-media{overflow:hidden;}
.fc-media img{width:100%;height:100%;min-height:250px;object-fit:cover;transition:transform .35s var(--ease);}
.feature-card:hover .fc-media img{transform:scale(1.03);}
.fc-body{padding:34px 36px;display:flex;flex-direction:column;justify-content:center;gap:14px;}
.fc-body h3{font-size:23px;line-height:1.45;font-weight:600;color:#1A1B22;}
.fc-body p{font-size:15px;color:#5A6070;line-height:1.85;}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:#E4470F;
  transition:gap .2s var(--ease),color .2s var(--ease);
}
.link-arrow:hover{gap:13px;color:#B93708;}

/* ============ 最新信息 ============ */
.post-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.post-card{
  display:flex;gap:18px;padding:18px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,106,31,.5);}
.post-media{width:40%;flex-shrink:0;border-radius:var(--r-img);overflow:hidden;}
.post-media img{width:100%;height:100%;min-height:132px;object-fit:cover;transition:transform .35s var(--ease);}
.post-card:hover .post-media img{transform:scale(1.03);}
.post-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:8px;}
.post-body h3{
  font-size:17px;font-weight:600;line-height:1.55;color:var(--t1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s var(--ease);
}
.post-card:hover .post-body h3{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.post-body p{
  font-size:13.5px;color:var(--t2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--t3);margin-top:auto;font-variant-numeric:tabular-nums;}
.post-meta svg{opacity:.75;}
.post-src::before{content:"·";margin-right:10px;color:var(--t3);}

.empty-state{
  min-height:240px;border:1px dashed rgba(255,255,255,.15);border-radius:var(--r-lg);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  text-align:center;color:var(--t3);padding:32px;
}
.empty-state svg{color:var(--t3);opacity:.7;}
.empty-state p{font-size:15px;}

/* ============ 相关推荐 横滚 ============ */
.rail-wrap{position:relative;}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 2px 18px;
}
.rail-card{
  flex:0 0 300px;scroll-snap-align:start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,106,31,.5);}
.rail-card .rc-media{overflow:hidden;aspect-ratio:16/9;}
.rail-card .rc-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.rail-card:hover .rc-media img{transform:scale(1.03);}
.rc-body{padding:18px;display:flex;flex-direction:column;gap:10px;}
.rc-body h3{font-size:16px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rc-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12.5px;color:var(--t3);font-variant-numeric:tabular-nums;}
.rail-arrows{position:absolute;right:0;top:-72px;display:flex;gap:10px;}
.rail-arrows button{
  width:44px;height:44px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--t2);
  transition:all .2s var(--ease);
}
.rail-arrows button:hover{color:var(--ink);background:var(--grad);border-color:transparent;transform:translateY(-2px);}
.rail-arrows button:active{transform:translateY(0);}
.rail-dots{display:none;justify-content:center;gap:8px;margin-top:8px;}
.rail-dots span{width:8px;height:8px;border-radius:999px;background:rgba(255,255,255,.16);transition:all .25s var(--ease);}
.rail-dots span.on{width:26px;background:var(--grad);}

/* ============ 渐变 CTA 横幅 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--grad);padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:34px;
  box-shadow:0 24px 60px rgba(255,106,31,.22);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.13) 0 2px,transparent 2px 14px);
  opacity:.35;
}
.cta-copy{position:relative;z-index:1;max-width:620px;}
.cta-copy h2{font-size:32px;line-height:1.3;font-weight:700;color:var(--ink);}
.cta-copy p{font-size:15px;color:rgba(27,15,6,.78);margin-top:10px;line-height:1.8;}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-shrink:0;}
.cta-note{position:relative;z-index:1;font-size:13px;color:rgba(27,15,6,.6);margin-top:18px;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-img);
  background:var(--panel);overflow:hidden;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.faq-item:hover{border-color:rgba(255,106,31,.4);}
.faq-item.open{border-color:rgba(255,106,31,.5);background:#151827;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:14px 20px;text-align:left;
  font-size:17px;font-weight:600;color:var(--t1);
}
.faq-q .plus{
  width:24px;height:24px;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand);transition:transform .25s var(--ease);
}
.faq-item.open .plus{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s var(--ease);
}
.faq-a-inner{
  position:relative;padding:0 20px 20px 20px;font-size:15px;color:var(--t2);line-height:1.9;
}
.faq-a-inner::before{
  content:"";position:absolute;left:0;top:2px;bottom:20px;width:3px;border-radius:999px;background:var(--grad);
}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;margin-top:24px;
  background:#0A0B12;
  padding:72px 0 32px;
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,106,31,.55),rgba(123,97,255,.45),transparent);
}
.site-footer::after{
  content:"";position:absolute;top:-160px;left:50%;transform:translateX(-50%);
  width:760px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,31,.14) 0%,rgba(255,106,31,0) 70%);
  pointer-events:none;
}
.footer-grid{position:relative;z-index:1;display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;}
.footer-brand span{font-size:16px;font-weight:700;color:#fff;letter-spacing:.4px;}
.footer-desc{font-size:14px;color:var(--t2);line-height:1.85;max-width:320px;}
.footer-social{display:flex;gap:12px;margin-top:20px;}
.footer-social a{
  width:38px;height:38px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--t2);
  transition:all .22s var(--ease);
}
.footer-social a:hover{color:var(--ink);background:var(--grad);border-color:transparent;transform:translateY(-2px);}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;letter-spacing:.5px;margin-bottom:18px;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{
  position:relative;font-size:14px;color:var(--t2);transition:color .2s var(--ease);
}
.footer-col a::after{
  content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;border-radius:999px;
  background:var(--grad);transition:width .22s var(--ease);
}
.footer-col a:hover{color:#fff;}
.footer-col a:hover::after{width:100%;}
.footer-col p{font-size:14px;color:var(--t2);line-height:1.9;}
.footer-bottom{
  position:relative;z-index:1;margin-top:48px;padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:var(--t3);
}
.footer-bottom .to-top{
  width:40px;height:40px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--t2);
  transition:all .22s var(--ease);
}
.footer-bottom .to-top:hover{color:var(--ink);background:var(--grad);border-color:transparent;transform:translateY(-2px);}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .nav-main .nav-link{padding:0 12px;font-size:14px;}
  .hero h1{font-size:42px;}
  .hero-stats .stat{padding:0 18px;}
}

@media (max-width:1024px){
  .section{padding:64px 0;}
  .nav-main{display:none;}
  .hero-inner{grid-template-columns:1fr;}
  .hero-float{display:none;}
  .hero h1{font-size:38px;}
  .catalog{grid-template-columns:1fr;gap:0;}
  .post-grid{grid-template-columns:1fr;}
  .section-feature{margin:0 16px;padding:64px 0;}
  .section-feature .container{padding:0 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .rail-arrows{display:none;}
  .rail-dots{display:flex;}
}

@media (max-width:768px){
  .container{padding:0 20px;}
  .nav-side .btn-sm{display:none;}
  .menu-btn{display:inline-flex;}
  .hero{min-height:auto;padding:64px 0 56px;}
  .hero h1{font-size:31px;margin:18px 0 14px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{flex:1;min-width:150px;}
  .hero-stats{margin-top:32px;}
  .hero-stats .stat{padding:0 16px;margin-bottom:14px;}
  .hero-stats strong{font-size:23px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .sec-head h2{font-size:26px;}
  .section{padding:52px 0;}
  .cat-title{font-size:16px;}
  .cat-num{width:34px;height:34px;font-size:13px;}
  .feature-card,
  .feature-card.reverse{grid-template-columns:1fr;}
  .feature-card.reverse .fc-media{order:0;}
  .fc-media img{min-height:196px;}
  .fc-body{padding:24px;}
  .fc-body h3{font-size:20px;}
  .post-card{flex-direction:column;}
  .post-media{width:100%;}
  .post-media img{min-height:170px;aspect-ratio:16/9;}
  .rail-card{flex:0 0 78vw;}
  .cta-copy h2{font-size:24px;}
  .cta-actions{flex-direction:column;}
  .faq-q{font-size:16px;min-height:52px;padding:13px 18px;}
  .site-footer{padding:48px 0 24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:16px;}
}

@media (max-width:520px){
  .hero h1{font-size:27px;}
  .brand-text{font-size:15px;}
  .hero-stats .stat{padding:0 12px 0 0;border-left:0;}
  .hero-stats{gap:18px 24px;}
}

/* roulang page: article */
:root{
  --brand:#FF6A1F;
  --brand-2:#FF8A2B;
  --brand-3:#FFC53D;
  --grad:linear-gradient(135deg,#FF4D1C 0%,#FF8A2B 48%,#FFC53D 100%);
  --grad-line:linear-gradient(90deg,transparent,rgba(255,106,31,.55),rgba(123,97,255,.45),transparent);
  --violet:#7B61FF;
  --cyan:#22D3C5;
  --bg:#0A0B12;
  --panel:#12141F;
  --card:#191D2B;
  --card-2:#0F1119;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.15);
  --light:#FBF6F1;
  --t1:#F2F4FF;
  --t2:#A7AEC4;
  --t3:#6E7690;
  --ink:#1B0F06;
  --ok:#34D399;
  --warn:#FFC53D;
  --danger:#FF5C5C;
  --r-xl:28px;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:16px;
  --r-xs:14px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-hover:0 18px 44px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--t1);
  font-size:16px;
  line-height:1.9;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:rgba(255,106,31,.32);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:#232838;border-radius:999px}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hair{height:1px;border:0;margin:0;background:var(--grad-line)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 22px;border-radius:999px;font-size:14.5px;font-weight:600;
  letter-spacing:.3px;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-primary{background:var(--grad);color:var(--ink);box-shadow:0 10px 30px rgba(255,106,31,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 38px rgba(255,106,31,.42)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border:1px solid rgba(255,255,255,.18);color:var(--t1);background:rgba(255,255,255,.03)}
.btn-ghost:hover{border-color:rgba(255,106,31,.6);color:#fff;transform:translateY(-2px);background:rgba(255,106,31,.08)}
.btn-ghost:active{transform:translateY(0)}
.btn-ink{background:var(--ink);color:#fff;box-shadow:0 10px 26px rgba(27,15,6,.28)}
.btn-ink:hover{transform:translateY(-2px)}
.btn-white-ghost{border:1px solid rgba(27,15,6,.5);color:var(--ink);background:rgba(255,255,255,.28)}
.btn-white-ghost:hover{background:rgba(255,255,255,.5);transform:translateY(-2px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn-sm{height:36px;padding:0 16px;font-size:13.5px}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:600;border-bottom:1px solid transparent}
.text-link:hover{color:var(--cyan);border-bottom-color:rgba(34,211,197,.6)}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;letter-spacing:.3px;border:1px solid var(--line);color:var(--t2);background:rgba(255,255,255,.03);
}
.badge-solid{background:rgba(255,106,31,.12);border-color:rgba(255,106,31,.34);color:#FFC79E}
.badge-violet{background:rgba(123,97,255,.14);border-color:rgba(123,97,255,.35);color:#C4B8FF}
.badge-cyan{background:rgba(34,211,197,.12);border-color:rgba(34,211,197,.32);color:#8FF0E6}
.dot-live{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(52,211,153,.16)}
.tag{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;border:1px solid var(--line);color:var(--t2);font-size:13.5px;transition:all .2s var(--ease)}
.tag:hover{color:#fff;border-color:rgba(255,106,31,.55);background:rgba(255,106,31,.1);transform:translateY(-2px)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,11,18,.86);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--grad-line)}
.nav-wrap{display:flex;align-items:center;gap:18px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;letter-spacing:.4px;color:#fff}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);
  display:grid;place-items:center;color:var(--ink);box-shadow:0 6px 18px rgba(255,106,31,.35);flex:none;
}
.brand span:last-child{white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{position:relative;padding:8px 14px;border-radius:999px;font-size:14.5px;letter-spacing:.3px;color:var(--t2);transition:all .2s var(--ease)}
.nav-link:hover{color:#fff;background:rgba(255,106,31,.08)}
.nav-link.active{color:#fff;background:rgba(255,106,31,.10);text-shadow:0 0 12px rgba(255,106,31,.85)}
.nav-link.active::after{content:"";position:absolute;left:22%;right:22%;bottom:3px;height:2px;border-radius:2px;background:var(--grad)}
.nav-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);color:var(--t2);
  display:grid;place-items:center;transition:all .22s var(--ease);background:rgba(255,255,255,.02)
}
.icon-btn:hover{background:var(--grad);color:var(--ink);border-color:transparent;transform:translateY(-2px)}
.burger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);color:var(--t1);place-items:center}
.burger:hover{border-color:rgba(255,106,31,.55)}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(4,5,9,.62);opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s;z-index:90}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;background:var(--card-2);z-index:95;
  transform:translateX(100%);transition:transform .28s var(--ease);
  display:flex;flex-direction:column;padding:22px 20px;border-left:1px solid var(--line);
}
.drawer.open{transform:translateX(0)}
.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:700;color:#fff;margin-bottom:22px}
.drawer-links{display:flex;flex-direction:column}
.drawer-links a{
  display:flex;align-items:center;height:56px;padding-left:16px;color:var(--t2);font-size:15px;
  border-left:3px solid transparent;transition:all .2s var(--ease)
}
.drawer-links a:hover{color:#fff;background:rgba(255,255,255,.04)}
.drawer-links a.active{color:#fff;border-left-color:var(--brand);background:rgba(255,106,31,.08)}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px}
.drawer-foot small{color:var(--t3);font-size:12px;line-height:1.7}
.close-drawer{position:absolute;top:16px;right:16px;width:38px;height:38px;border-radius:50%;border:1px solid var(--line);color:var(--t2);display:grid;place-items:center}
.close-drawer:hover{color:#fff;border-color:rgba(255,106,31,.5)}

/* ============ 文章页头 ============ */
.article-hero{position:relative;padding:44px 0 54px;overflow:hidden;background:#0A0B12}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-3.png) center/cover no-repeat;
  opacity:.5;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,11,18,.96) 0%,rgba(10,11,18,.78) 52%,rgba(10,11,18,.42) 100%),
             linear-gradient(180deg,rgba(10,11,18,.35) 0%,rgba(10,11,18,.9) 78%,var(--bg) 100%);
}
.article-hero .container{position:relative;z-index:3}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--t3);margin-bottom:20px}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.24)}
.breadcrumb .cur{max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--t2)}
.article-head{max-width:860px}
.article-head h1{
  font-size:clamp(28px,3.5vw,40px);line-height:1.28;font-weight:700;letter-spacing:.2px;margin:16px 0 20px;color:#fff;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px;color:var(--t2);font-size:14px}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-divider{width:1px;height:14px;background:var(--line-strong)}
.share-group{display:flex;align-items:center;gap:10px}
.share-group .icon-btn{width:38px;height:38px}
.share-group .icon-btn:hover{background:var(--grad);color:var(--ink)}
.copy-tip{font-size:12.5px;color:var(--cyan);opacity:0;transition:opacity .2s var(--ease)}
.copy-tip.show{opacity:1}

/* ============ 正文布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 296px;gap:44px;
  padding:56px 0 72px;
}
.article-panel{max-width:760px;margin:0 auto;width:100%}

.article-body{color:#DDE2F2;font-size:17px;line-height:1.95}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;font-size:28px;line-height:1.4;font-weight:700;color:#fff;
  margin:48px 0 16px;padding-left:16px;letter-spacing:.2px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--grad);
}
.article-body h3{font-size:24px;line-height:1.45;font-weight:600;color:#fff;margin:32px 0 12px}
.article-body h4{font-size:18px;font-weight:600;color:#fff;margin:24px 0 10px}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--cyan)}
.article-body strong{color:#fff;font-weight:600}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;border-left:3px solid var(--brand);border-radius:16px;
  background:rgba(255,106,31,.06);color:#E7EAF6;font-style:normal;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:4px}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:12px;width:8px;height:8px;border-radius:2px;background:var(--grad);
}
.article-body ol{counter-reset:li}
.article-body ol li{counter-increment:li}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:2px;font-size:13px;font-weight:700;
  color:var(--brand-3);width:16px;text-align:left;
}
.article-body img{border-radius:16px;margin:24px auto;box-shadow:var(--shadow)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--t3);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.article-body th{background:var(--card);color:#fff;font-weight:600;text-align:left}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
.article-body pre{
  background:var(--card-2);border:1px solid var(--line);border-radius:12px;padding:20px;
  overflow-x:auto;font-size:14px;line-height:1.7;margin:24px 0;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;color:#FFC79E}
.article-body pre code{color:#DDE2F2}
.table-scroll{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}

.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--r-lg);padding:56px 24px;text-align:center;
  background:var(--panel);
}
.empty-state .ico{
  width:56px;height:56px;border-radius:18px;margin:0 auto 16px;display:grid;place-items:center;
  background:rgba(255,106,31,.12);color:var(--brand);border:1px solid rgba(255,106,31,.3);
}
.empty-state h3{font-size:20px;color:#fff;margin-bottom:8px}
.empty-state p{color:var(--t2);font-size:15px;margin-bottom:22px}

/* 标签行 / 分享条 */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line)}
.article-tags .label{color:var(--t3);font-size:13.5px;margin-right:4px;line-height:32px}

.share-bar{
  margin-top:28px;border-radius:var(--r-lg);padding:26px 28px;
  background:var(--grad);color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  box-shadow:0 14px 34px rgba(255,106,31,.24);
}
.share-bar h3{font-size:20px;font-weight:700;letter-spacing:.2px}
.share-bar p{font-size:13.5px;opacity:.76;margin-top:4px}
.share-bar .actions{display:flex;gap:10px;flex-wrap:wrap}

/* 上下篇 */
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:40px}
.pn-card{
  display:flex;align-items:center;gap:14px;padding:20px;border-radius:var(--r-md);
  background:var(--card);border:1px solid var(--line);transition:all .22s var(--ease);
}
.pn-card:hover{transform:translateY(-4px);border-color:rgba(255,106,31,.5);box-shadow:var(--shadow-hover)}
.pn-card .arrow{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;
  color:var(--t2);flex:none;transition:all .22s var(--ease)
}
.pn-card:hover .arrow{background:var(--grad);color:var(--ink);border-color:transparent}
.pn-card .txt small{display:block;color:var(--t3);font-size:12.5px;margin-bottom:4px}
.pn-card .txt span{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  font-size:15.5px;font-weight:600;color:#fff;line-height:1.6
}
.pn-card.next{flex-direction:row-reverse;text-align:right}

/* 相关推荐 */
.reco{margin-top:56px;padding-top:36px;border-top:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}
.section-head .title-wrap{position:relative;padding-left:14px}
.section-head .title-wrap::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:4px;background:var(--cyan);
}
.section-head h2{font-size:26px;font-weight:700;color:#fff;line-height:1.35}
.section-head p{color:var(--t2);font-size:14.5px;margin-top:6px}
.reco-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.card-cover{
  position:relative;border-radius:var(--r-sm);overflow:hidden;background:var(--card);
  aspect-ratio:16/9;
}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.reco-card{
  display:block;border-radius:var(--r-md);background:var(--card);border:1px solid var(--line);
  padding:14px;transition:all .22s var(--ease);
}
.reco-card:hover{transform:translateY(-4px);border-color:rgba(255,106,31,.5);box-shadow:var(--shadow-hover)}
.reco-card:hover .card-cover img{transform:scale(1.03)}
.reco-card h4{
  font-size:16px;font-weight:600;line-height:1.6;color:#fff;margin:14px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:51px;
}
.reco-card p{
  font-size:13.5px;color:var(--t2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.reco-card .foot{display:flex;align-items:center;justify-content:space-between;margin-top:12px;color:var(--t3);font-size:12.5px}

.back-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.back-link{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line);color:var(--t2);font-size:14px;transition:all .2s var(--ease)
}
.back-link:hover{color:#fff;border-color:rgba(255,106,31,.55);background:rgba(255,106,31,.08);transform:translateX(-3px)}

/* ============ 侧栏 ============ */
.article-aside{position:relative}
.aside-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px}
.aside-box{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);padding:20px}
.aside-box h3{
  font-size:15px;font-weight:600;color:#fff;margin-bottom:14px;display:flex;align-items:center;gap:8px;
}
.aside-box h3::before{content:"";width:3px;height:14px;border-radius:3px;background:var(--grad)}
.toc-list{border-left:1px solid var(--line);display:flex;flex-direction:column}
.toc-list a{
  position:relative;display:block;padding:8px 0 8px 14px;font-size:13.5px;color:var(--t2);line-height:1.6;
  border-left:3px solid transparent;margin-left:-2px;transition:all .2s var(--ease);
}
.toc-list a:hover{color:#fff}
.toc-list a.active{color:#fff;border-left-color:var(--brand);background:rgba(255,106,31,.07)}
.hot-list{display:flex;flex-direction:column;gap:14px}
.hot-item{display:flex;gap:12px;align-items:flex-start}
.hot-item .num{
  flex:none;width:22px;height:22px;border-radius:7px;display:grid;place-items:center;
  font-size:12px;font-weight:700;background:rgba(123,97,255,.16);color:#C4B8FF;border:1px solid rgba(123,97,255,.34)
}
.hot-item:first-child .num{background:rgba(255,106,31,.16);color:#FFC79E;border-color:rgba(255,106,31,.38)}
.hot-item span{font-size:13.5px;line-height:1.6;color:var(--t2);transition:color .2s var(--ease)}
.hot-item:hover span{color:#fff}

/* ============ FAQ ============ */
.faq-section{padding:80px 0;background:var(--light);color:#1A1B22;border-radius:var(--r-lg);margin-bottom:0}
.faq-section .section-head h2{color:#1A1B22}
.faq-section .section-head p{color:#5A6070}
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px;margin:0 auto}
.faq-item{background:#fff;border:1px solid rgba(26,27,34,.08);border-radius:16px;overflow:hidden;box-shadow:0 12px 32px rgba(26,27,34,.06)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;height:56px;
  padding:0 20px;font-size:17px;font-weight:600;color:#1A1B22;text-align:left;
}
.faq-q .plus{
  flex:none;width:26px;height:26px;border-radius:50%;border:1px solid rgba(26,27,34,.16);
  display:grid;place-items:center;color:#5A6070;transition:all .24s var(--ease)
}
.faq-item.open .faq-q .plus{transform:rotate(45deg);background:var(--grad);color:var(--ink);border-color:transparent}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a .inner{position:relative;padding:0 20px 20px 20px;color:#5A6070;font-size:15.5px;line-height:1.9}
.faq-a .inner::before{content:"";position:absolute;left:8px;top:4px;bottom:20px;width:3px;border-radius:3px;background:var(--grad)}
.faq-a .inner p{margin-bottom:10px}
.faq-a .inner p:last-child{margin-bottom:0}

/* ============ CTA ============ */
.cta-section{padding:80px 0}
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);padding:48px;
  background:var(--grad);color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.14) 0 2px,transparent 2px 14px);
  opacity:.35;pointer-events:none;
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.35;letter-spacing:.2px}
.cta-band p{font-size:15px;margin-top:8px;opacity:.78;max-width:520px;line-height:1.8}
.cta-band .actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-note{font-size:13px;opacity:.6;margin-top:16px;flex-basis:100%}

/* ============ 页脚 ============ */
.site-footer{position:relative;background:var(--bg);padding:72px 0 32px;overflow:hidden}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad-line)}
.site-footer::after{
  content:"";position:absolute;top:-160px;left:50%;transform:translateX(-50%);
  width:820px;height:420px;pointer-events:none;
  background:radial-gradient(circle,rgba(255,106,31,.12),transparent 68%);
}
.site-footer .container{position:relative;z-index:2}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1.25fr 1.25fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-desc{color:var(--t2);font-size:14px;line-height:1.85;max-width:340px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;
  color:var(--t2);transition:all .22s var(--ease)
}
.footer-social a:hover{background:var(--grad);color:var(--ink);border-color:transparent;transform:translateY(-2px)}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.3px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{position:relative;font-size:14px;color:var(--t2);display:inline-block}
.footer-col a::after{
  content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;border-radius:2px;background:var(--grad);
  transition:width .22s var(--ease)
}
.footer-col a:hover{color:#fff}
.footer-col a:hover::after{width:100%}
.footer-col p{color:var(--t2);font-size:14px;line-height:1.85;margin-bottom:10px}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--t3);font-size:13px;
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);color:var(--t2);font-size:13px;transition:all .22s var(--ease)
}
.to-top:hover{background:var(--grad);color:var(--ink);border-color:transparent}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding:48px 0 64px}
  .article-aside{display:none}
  .article-panel{max-width:760px}
}
@media (max-width:1024px){
  .container{padding:0 20px}
  .nav-main{display:none}
  .burger{display:grid}
  .nav-actions .btn-primary{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .reco-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .faq-section{padding:64px 0}
  .cta-section{padding:64px 0}
  .cta-band{padding:40px}
  .site-footer{padding:64px 0 28px}
}
@media (max-width:768px){
  :root{--nav-h:56px}
  body{font-size:16px}
  .article-hero{padding:32px 0 42px}
  .article-head h1{margin:14px 0 16px}
  .breadcrumb .cur{max-width:180px}
  .article-body{font-size:16.5px;line-height:1.9}
  .article-body h2{font-size:24px;margin:38px 0 14px}
  .article-body h3{font-size:21px}
  .article-body blockquote{padding:16px 18px}
  .prevnext{grid-template-columns:1fr}
  .pn-card.next{flex-direction:row;text-align:left}
  .reco-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .share-bar{padding:22px;flex-direction:column;align-items:flex-start}
  .share-bar .actions{width:100%}
  .share-bar .actions .btn{flex:1}
  .cta-band{padding:28px;flex-direction:column;align-items:flex-start}
  .cta-band .actions{width:100%}
  .cta-band .actions .btn{flex:1}
  .faq-section{padding:48px 0}
  .faq-q{height:52px;font-size:16px;padding:0 16px}
  .faq-a .inner{padding:0 16px 18px 16px}
  .faq-a .inner::before{left:4px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand span:last-child{font-size:15px}
  .article-layout{padding:36px 0 52px}
  .article-tags{padding-top:22px}
  .back-links{flex-direction:column;align-items:stretch}
  .back-link{justify-content:center}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --brand:#FF6A1F;
  --brand-grad:linear-gradient(135deg,#FF4D1C 0%,#FF8A2B 48%,#FFC53D 100%);
  --purple:#7B61FF;
  --cyan:#22D3C5;
  --bg:#0A0B12;
  --panel:#12141F;
  --card:#191D2B;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --light:#FBF6F1;
  --t1:#F2F4FF;
  --t2:#A7AEC4;
  --t3:#6E7690;
  --dark1:#1A1B22;
  --dark2:#5A6070;
  --ok:#34D399;
  --warn:#FFC53D;
  --danger:#FF5C5C;
  --ink:#1B0F06;
  --r-lg:24px;
  --r-md:20px;
  --r-img:16px;
  --r-in:14px;
  --r-pill:999px;
  --sh:0 8px 24px rgba(0,0,0,.45);
  --sh-hover:0 18px 44px rgba(0,0,0,.55),0 0 0 1px rgba(255,106,31,.35);
  --sh-btn:0 10px 30px rgba(255,106,31,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:68px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--t1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
svg{display:block}
::selection{background:rgba(255,106,31,.32);color:#fff}

body::-webkit-scrollbar{width:10px}
body::-webkit-scrollbar-track{background:#0A0B12}
body::-webkit-scrollbar-thumb{background:#232838;border-radius:10px}
body::-webkit-scrollbar-thumb:hover{background:#2e3549}

.container{max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,11,18,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,106,31,.55),rgba(123,97,255,.45),transparent);
}
.header-inner{
  height:var(--nav-h);
  display:flex;align-items:center;gap:28px;
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--brand-grad);
  color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(255,106,31,.28);
  flex-shrink:0;
}
.brand-text{
  font-size:15px;font-weight:700;letter-spacing:.2px;color:var(--t1);
  white-space:nowrap;
}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:6px}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:38px;padding:0 14px;
  border-radius:var(--r-pill);
  font-size:14.5px;letter-spacing:.3px;color:var(--t2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:20%;right:20%;bottom:3px;height:2px;border-radius:2px;
  background:var(--brand-grad);opacity:0;
  transition:opacity .2s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-link.active{
  color:#fff;
  background:rgba(255,106,31,.10);
  text-shadow:0 0 12px rgba(255,106,31,.85);
}
.nav-link.active::after{opacity:1;left:20%;right:20%}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;
  color:var(--t2);
  transition:all .2s var(--ease);
}
.icon-btn:hover{
  background:var(--brand-grad);color:var(--ink);
  border-color:transparent;transform:translateY(-2px);
  box-shadow:var(--sh-btn);
}
.icon-btn:focus-visible,.menu-toggle:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.menu-toggle{
  display:none;
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line-strong);
  align-items:center;justify-content:center;color:var(--t1);
}
.menu-toggle:hover{border-color:rgba(255,106,31,.6);color:#fff}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--brand-grad);color:var(--ink);box-shadow:var(--sh-btn)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 38px rgba(255,106,31,.38)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  border:1px solid var(--line-strong);color:var(--t1);background:rgba(255,255,255,.03);
}
.btn-ghost:hover{
  transform:translateY(-2px);
  border-color:rgba(255,106,31,.6);
  background:rgba(255,106,31,.10);
  box-shadow:0 12px 28px rgba(255,106,31,.18);
}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(27,15,6,.35)}
.btn-outline-dark{border:1px solid rgba(26,27,34,.4);color:var(--dark1)}
.btn-outline-dark:hover{transform:translateY(-2px);border-color:var(--dark1);background:rgba(26,27,34,.06)}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 标签 / 徽章 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:500;letter-spacing:.2px;
  background:rgba(123,97,255,.14);
  border:1px solid rgba(123,97,255,.34);
  color:#C6BAFF;
}
.tag-brand{background:rgba(255,106,31,.13);border-color:rgba(255,106,31,.4);color:#FFB37A}
.tag-cyan{background:rgba(34,211,197,.12);border-color:rgba(34,211,197,.36);color:#7CE9DF}
.tag-dark{background:rgba(26,27,34,.07);border-color:rgba(26,27,34,.16);color:var(--dark2)}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;
  min-height:380px;
  display:flex;align-items:center;
  padding:64px 0 76px;
  overflow:hidden;
}
.page-hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.6;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,11,18,.96) 0%,rgba(10,11,18,.78) 52%,rgba(10,11,18,.4) 100%);
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:170px;
  background:linear-gradient(180deg,rgba(10,11,18,0),var(--bg));
}
.page-hero-inner{position:relative;z-index:2;max-width:760px}
.breadcrumb{
  display:flex;align-items:center;gap:10px;
  font-size:13.5px;color:var(--t3);margin-bottom:16px;
}
.breadcrumb a{transition:color .2s var(--ease)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .cur{color:var(--t2);max-width:240px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-hero h1{
  font-size:clamp(30px,4.2vw,48px);
  line-height:1.24;font-weight:700;letter-spacing:.2px;
  margin-bottom:16px;
}
.page-hero h1 em{
  font-style:normal;
  background:var(--brand-grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  font-size:17px;line-height:1.9;color:var(--t2);max-width:620px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px}
.stat-row{display:flex;flex-wrap:wrap;gap:0}
.stat-row li{
  display:flex;flex-direction:column;gap:2px;
  padding:0 26px;
  border-left:1px solid rgba(255,255,255,.12);
}
.stat-row li:first-child{padding-left:0;border-left:0}
.stat-row strong{
  font-size:26px;font-weight:700;line-height:1.2;
  font-variant-numeric:tabular-nums;
  background:var(--brand-grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-row span{font-size:13px;color:var(--t3)}

/* ============ 区块通用 ============ */
.section{padding:88px 0}
.section-rule{
  height:1px;margin-bottom:56px;
  background:linear-gradient(90deg,transparent,rgba(255,106,31,.45),rgba(123,97,255,.32),transparent);
}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:40px;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);line-height:1.32;font-weight:700;letter-spacing:.2px;
  margin-top:12px;
}
.section-head .lead{
  font-size:15.5px;color:var(--t2);max-width:640px;margin-top:12px;
}
.section-head .more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;color:var(--brand);white-space:nowrap;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.section-head .more:hover{color:#FFB37A;transform:translateX(3px)}
.section-line{width:44px;height:3px;border-radius:3px;background:var(--brand-grad)}

/* ============ 卡片网格 ============ */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}

.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh);
  padding:26px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-hover);
  border-color:rgba(255,106,31,.5);
}
.card-icon{
  width:46px;height:46px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,106,31,.12);
  border:1px solid rgba(255,106,31,.32);
  color:#FFB37A;
  margin-bottom:18px;
}
.card h3{font-size:20px;line-height:1.5;font-weight:600;margin-bottom:10px}
.card p{font-size:15px;color:var(--t2);line-height:1.9}
.card .card-foot{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13.5px;color:var(--t3);
}
.card:hover h3{
  background:var(--brand-grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ============ 场景卡（图文） ============ */
.scene-card{
  display:grid;grid-template-columns:44% 1fr;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.scene-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-hover);
  border-color:rgba(255,106,31,.5);
}
.scene-media{position:relative;overflow:hidden;min-height:190px}
.scene-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .35s var(--ease);
}
.scene-card:hover .scene-media img{transform:scale(1.03)}
.scene-body{padding:24px}
.scene-body h3{font-size:19px;font-weight:600;line-height:1.5;margin-bottom:10px}
.scene-body p{font-size:14.5px;color:var(--t2);line-height:1.85}

/* ============ 流程步骤 ============ */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;counter-reset:step}
.flow-item{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 24px 24px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.flow-item::before{
  counter-increment:step;
  content:"0" counter(step);
  display:block;
  font-size:15px;font-weight:700;letter-spacing:1px;
  font-variant-numeric:tabular-nums;
  background:var(--brand-grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:14px;
}
.flow-item::after{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,#FF6A1F,#7B61FF);
  opacity:0;transition:opacity .22s var(--ease);
}
.flow-item:hover{
  transform:translateY(-4px);
  border-color:rgba(255,106,31,.5);
  box-shadow:var(--sh-hover);
}
.flow-item:hover::after{opacity:1}
.flow-item h3{font-size:18px;font-weight:600;margin-bottom:8px}
.flow-item p{font-size:14.5px;color:var(--t2);line-height:1.85}

/* ============ 排查列表 ============ */
.trouble-item{
  display:flex;gap:16px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px 24px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.trouble-item:hover{
  transform:translateY(-3px);
  border-color:rgba(255,106,31,.5);
  box-shadow:var(--sh-hover);
}
.trouble-dot{
  flex:0 0 auto;width:10px;height:10px;margin-top:11px;border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 4px rgba(34,211,197,.14),0 0 14px rgba(34,211,197,.5);
}
.trouble-item h3{font-size:17px;font-weight:600;margin-bottom:6px}
.trouble-item p{font-size:14.5px;color:var(--t2);line-height:1.85}

/* ============ 亮面板块 ============ */
.light-panel{
  background:var(--light);
  color:var(--dark1);
  border-radius:var(--r-lg);
  padding:48px;
  display:grid;grid-template-columns:0.95fr 1.05fr;gap:44px;align-items:center;
  box-shadow:0 12px 32px rgba(26,27,34,.08);
}
.light-media{border-radius:var(--r-img);overflow:hidden}
.light-media img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .35s var(--ease)}
.light-panel:hover .light-media img{transform:scale(1.03)}
.light-body h2{
  font-size:clamp(23px,2.4vw,31px);line-height:1.34;font-weight:700;
  margin:14px 0 14px;color:var(--dark1);
}
.light-body > p{font-size:15.5px;color:var(--dark2);line-height:1.9;margin-bottom:22px}
.check-list{display:flex;flex-direction:column;gap:14px;margin-bottom:28px}
.check-list li{
  display:flex;gap:12px;font-size:15px;color:var(--dark1);line-height:1.8;
}
.check-list li svg{flex:0 0 auto;margin-top:6px;color:var(--brand)}

/* ============ 渐变 CTA ============ */
.cta-banner{
  position:relative;overflow:hidden;
  background:var(--brand-grad);
  border-radius:28px;
  padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 18px 44px rgba(255,106,31,.28);
}
.cta-banner::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.14) 0 2px,rgba(255,255,255,0) 2px 14px);
  opacity:.5;pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:620px}
.cta-copy h2{font-size:clamp(22px,2.5vw,30px);line-height:1.34;font-weight:700;color:var(--ink);margin-bottom:10px}
.cta-copy p{font-size:15.5px;color:rgba(27,15,6,.78);line-height:1.85}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}
.cta-note{
  position:relative;z-index:2;
  font-size:13px;color:rgba(27,15,6,.62);margin-top:14px;
}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px}
.faq-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-img);
  overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:rgba(255,106,31,.4)}
.faq-item.open{border-color:rgba(255,106,31,.5);box-shadow:0 12px 32px rgba(0,0,0,.42)}
.faq-q{
  width:100%;height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 20px;text-align:left;
  font-size:17px;font-weight:600;color:var(--t1);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:#fff}
.faq-q:focus-visible{outline:2px solid var(--cyan);outline-offset:-3px}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid rgba(255,106,31,.45);
  color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;line-height:1;
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease);
}
.faq-item.open .faq-icon{
  transform:rotate(45deg);
  background:var(--brand-grad);color:var(--ink);border-color:transparent;
}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a-inner{
  padding:0 20px 20px 20px;
  border-left:3px solid transparent;
  margin-left:20px;padding-left:16px;
  position:relative;
}
.faq-item.open .faq-a-inner::before{
  content:"";position:absolute;left:-3px;top:2px;bottom:20px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,#FF6A1F,#7B61FF);
}
.faq-a p{font-size:15.5px;color:var(--t2);line-height:1.9}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  margin-top:40px;
  background:#0A0B12;
  padding:72px 0 32px;
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,106,31,.6),rgba(123,97,255,.5),transparent);
}
.site-footer::after{
  content:"";position:absolute;left:50%;top:-160px;width:760px;height:420px;
  transform:translateX(-50%);
  background:radial-gradient(circle,rgba(255,106,31,.12),transparent 68%);
  pointer-events:none;
}
.footer-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:24px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-size:16px;font-weight:700;margin-bottom:16px;
}
.footer-desc{font-size:14px;color:var(--t2);line-height:1.9;max-width:340px;margin-bottom:20px}
.footer-social{display:flex;gap:12px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;
  color:var(--t2);
  transition:all .2s var(--ease);
}
.footer-social a:hover{
  background:var(--brand-grad);color:var(--ink);border-color:transparent;
  transform:translateY(-2px);box-shadow:var(--sh-btn);
}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--t1)}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a,.footer-col p{
  font-size:14px;color:var(--t2);line-height:1.8;
  position:relative;display:inline-block;
  transition:color .2s var(--ease);
}
.footer-col a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand-grad);opacity:0;transition:opacity .2s var(--ease);
}
.footer-col a:hover{color:#fff}
.footer-col a:hover::after{opacity:1}
.footer-bottom{
  position:relative;z-index:2;
  margin-top:52px;padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--t3);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);color:var(--t2);font-size:13.5px;
  transition:all .2s var(--ease);
}
.to-top:hover{background:var(--brand-grad);color:var(--ink);border-color:transparent;transform:translateY(-2px)}

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:90;
  width:84vw;max-width:360px;
  background:#0F1119;
  transform:translateX(102%);
  transition:transform .3s var(--ease);
  display:flex;flex-direction:column;
  border-left:1px solid var(--line);
  padding:20px 0 24px;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-overlay{
  position:fixed;inset:0;z-index:80;
  background:rgba(4,5,9,.66);
  opacity:0;visibility:hidden;
  transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.drawer-overlay.open{opacity:1;visibility:visible}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:0 20px 18px;margin-bottom:8px;
  border-bottom:1px solid var(--line);
}
.drawer-close{
  width:36px;height:36px;border-radius:12px;
  border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;color:var(--t2);
}
.drawer-link{
  display:flex;align-items:center;
  height:56px;padding:0 20px;
  font-size:15.5px;color:var(--t2);
  border-left:3px solid transparent;
  transition:all .2s var(--ease);
}
.drawer-link:hover{color:#fff;background:rgba(255,255,255,.04)}
.drawer-link.active{
  color:#fff;
  border-left-color:#FF6A1F;
  background:rgba(255,106,31,.08);
  box-shadow:inset 0 0 0 1px rgba(255,106,31,.12);
}
.drawer-foot{margin-top:auto;padding:20px;border-top:1px solid var(--line)}
.drawer-foot .btn{width:100%}
.drawer-foot small{display:block;margin-top:14px;font-size:12px;color:var(--t3);line-height:1.7}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .nav-main{gap:2px}
  .nav-link{padding:0 10px;font-size:14px}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .light-panel{grid-template-columns:1fr;gap:32px;padding:36px}
}
@media (max-width:900px){
  .nav-main{display:none}
  .menu-toggle{display:flex}
  .header-actions .btn{display:none}
  .section{padding:64px 0}
  .section-rule{margin-bottom:40px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-2{grid-template-columns:1fr}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:36px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
}
@media (max-width:760px){
  :root{--nav-h:56px}
  .container{padding:0 20px}
  .brand-text{font-size:14px}
  .page-hero{min-height:340px;padding:44px 0 56px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1}
  .stat-row li{padding:0 16px}
  .stat-row strong{font-size:22px}
  .scene-card{grid-template-columns:1fr}
  .scene-media{min-height:180px;aspect-ratio:16/9}
  .flow{grid-template-columns:1fr}
  .grid-3,.grid-4{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .faq-q{height:52px;font-size:16px;padding:0 16px}
  .faq-a-inner{margin-left:16px;padding:0 16px 18px 14px}
  .section{padding:52px 0}
  .light-panel{padding:26px}
  .cta-banner{padding:28px;border-radius:24px}
  .site-footer{padding:48px 0 24px}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --brand:#FF6A1F;
  --brand-2:#FF4D1C;
  --brand-3:#FF8A2B;
  --brand-4:#FFC53D;
  --grad:linear-gradient(135deg,#FF4D1C 0%,#FF8A2B 48%,#FFC53D 100%);
  --purple:#7B61FF;
  --cyan:#22D3C5;
  --bg:#0A0B12;
  --panel:#12141F;
  --card:#191D2B;
  --light:#FBF6F1;
  --line:rgba(255,255,255,.08);
  --line-soft:rgba(255,255,255,.06);
  --t1:#F2F4FF;
  --t2:#A7AEC4;
  --t3:#6E7690;
  --ink:#1B0F06;
  --ok:#34D399;
  --warn:#FFC53D;
  --danger:#FF5C5C;
  --r-xl:28px;
  --r-lg:24px;
  --r-md:20px;
  --r-img:16px;
  --r-in:14px;
  --sh-card:0 8px 24px rgba(0,0,0,.45);
  --sh-hover:0 18px 44px rgba(0,0,0,.55);
  --sh-glow:0 10px 30px rgba(255,106,31,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1240px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--t1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;}
p{margin:0;}
svg{display:block;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}

::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--bg);}
::-webkit-scrollbar-thumb{background:#232838;border-radius:8px;}
::-webkit-scrollbar-thumb:hover{background:#2d3346;}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 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;letter-spacing:.3px;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),background 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:var(--ink);box-shadow:var(--sh-glow);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(255,106,31,.38);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(255,106,31,.3);}
.btn-ghost{border:1px solid rgba(255,255,255,.18);color:var(--t1);background:rgba(255,255,255,.02);}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(255,106,31,.6);color:#fff;background:rgba(255,106,31,.08);}
.btn-ghost:active{transform:translateY(0);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}

.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.18);
  display:inline-flex;align-items:center;justify-content:center;color:var(--t2);
  transition:all 220ms var(--ease);
}
.icon-btn:hover{background:var(--grad);color:var(--ink);border-color:transparent;transform:translateY(-2px);}
.icon-btn:active{transform:translateY(0);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,11,18,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,106,31,.55),rgba(123,97,255,.45),transparent);
}
.nav-shell{
  height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;letter-spacing:.2px;color:var(--t1);}
.brand:hover .brand-mark{transform:rotate(-6deg) scale(1.04);}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  box-shadow:0 6px 18px rgba(255,106,31,.35);
  transition:transform 220ms var(--ease);
}
.nav-main{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 16px;border-radius:999px;
  font-size:15px;letter-spacing:.3px;color:var(--t2);
  transition:color 200ms var(--ease),background 200ms var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;border-radius:2px;
  background:var(--grad);transform:translateX(-50%);transition:width 220ms var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,106,31,.10);}
.nav-link:hover::after{width:60%;}
.nav-link.active{
  color:#fff;background:rgba(255,106,31,.12);
  text-shadow:0 0 12px rgba(255,106,31,.85);
}
.nav-link.active::after{width:60%;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{display:none;}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,5,10,.6);opacity:0;visibility:hidden;
  transition:opacity 220ms var(--ease),visibility 220ms var(--ease);z-index:90;
}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;background:#0F1119;
  transform:translateX(102%);transition:transform 260ms var(--ease);z-index:95;
  display:flex;flex-direction:column;padding:20px;border-left:1px solid var(--line);
}
body.drawer-open .drawer{transform:translateX(0);}
body.drawer-open .drawer-mask{opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-nav{margin-top:12px;display:flex;flex-direction:column;flex:1;}
.drawer-nav a{
  position:relative;display:flex;align-items:center;height:56px;padding-left:16px;
  color:var(--t2);font-size:15px;border-bottom:1px solid var(--line-soft);
  transition:color 200ms var(--ease),background 200ms var(--ease);
}
.drawer-nav a:hover{color:#fff;}
.drawer-nav a.active{color:#fff;background:rgba(255,106,31,.08);}
.drawer-nav a.active::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:3px;background:var(--grad);
}
.drawer-foot{margin-top:16px;display:flex;flex-direction:column;gap:12px;}
.drawer-foot small{color:var(--t3);font-size:12px;line-height:1.7;}

/* ============ 页头 ============ */
.page-hero{
  position:relative;overflow:hidden;
  min-height:344px;
  display:flex;align-items:center;
  padding:64px 0 56px;
  background:
    radial-gradient(900px 420px at 50% -12%,rgba(255,106,31,.20),transparent 70%),
    radial-gradient(720px 380px at 82% -6%,rgba(123,97,255,.16),transparent 72%),
    linear-gradient(180deg,#0A0B12 0%,#12141F 100%);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.055) 0 1px,transparent 1px 26px);
  opacity:.9;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;opacity:.16;
}
.page-hero .container{position:relative;z-index:2;}
.hero-inner{max-width:820px;margin:0 auto;text-align:center;}
.crumb{
  display:flex;justify-content:center;gap:10px;font-size:14px;color:var(--t3);margin-bottom:18px;
}
.crumb a{color:var(--t3);transition:color 200ms var(--ease);}
.crumb a:hover{color:#fff;}
.crumb span.sep{color:rgba(255,255,255,.22);}
.crumb .now{color:var(--t2);}
.page-hero h1{
  font-size:clamp(30px,4vw,46px);line-height:1.22;font-weight:700;letter-spacing:.2px;
}
.page-hero h1 em{
  font-style:normal;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  margin:16px auto 0;max-width:640px;color:var(--t2);font-size:16px;line-height:1.9;
}
.search-form{
  margin:26px auto 0;max-width:560px;position:relative;
  display:flex;align-items:center;gap:10px;
  background:rgba(18,20,31,.9);border:1px solid var(--line);border-radius:999px;
  padding:6px 6px 6px 18px;
  transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.search-form:focus-within{
  border-color:transparent;
  box-shadow:0 0 0 2px rgba(255,138,43,.75),0 0 24px rgba(255,106,31,.28);
}
.search-form.is-error{border-color:rgba(255,92,92,.7);box-shadow:0 0 0 2px rgba(255,92,92,.35);}
.search-form svg{color:var(--t3);flex:0 0 auto;}
.search-form input{
  flex:1;min-width:0;background:transparent;border:0;outline:none;height:40px;
  font-size:15px;color:var(--t1);
}
.search-form input::placeholder{color:var(--t3);}
.search-hint{
  margin-top:12px;font-size:13px;color:var(--t3);min-height:20px;transition:color 200ms var(--ease);
}
.search-hint.is-ok{color:var(--cyan);}
.search-hint.is-error{color:var(--danger);}

.stat-row{
  margin-top:30px;display:flex;justify-content:center;flex-wrap:wrap;gap:0;
}
.stat{
  padding:0 26px;text-align:center;position:relative;
}
.stat + .stat::before{
  content:"";position:absolute;left:0;top:14%;height:72%;width:1px;background:var(--line);
}
.stat b{
  display:block;font-size:24px;font-weight:700;font-variant-numeric:tabular-nums;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat span{display:block;font-size:13px;color:var(--t3);letter-spacing:.4px;}

/* ============ 区块通用 ============ */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:40px;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--cyan);
  letter-spacing:1.4px;text-transform:uppercase;margin-bottom:12px;
}
.section-head .eyebrow::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--cyan);}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.35;}
.section-head p{margin-top:12px;color:var(--t2);font-size:15px;max-width:640px;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:15px;font-weight:600;
  transition:color 200ms var(--ease),gap 200ms var(--ease);
}
.link-more:hover{color:var(--cyan);gap:10px;}

.hairline{
  height:1px;border:0;margin:0;
  background:linear-gradient(90deg,transparent,rgba(255,106,31,.4),rgba(123,97,255,.32),transparent);
}

/* ============ 时间轴 ============ */
.timeline-sec{background:linear-gradient(180deg,#0A0B12 0%,#0E1018 100%);}
.timeline{position:relative;padding:8px 0 4px;}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;transform:translateX(-50%);
  background:linear-gradient(180deg,rgba(255,77,28,.75),rgba(255,138,43,.55),rgba(123,97,255,.6),rgba(34,211,197,.5));
}
.tl-item{position:relative;width:calc(50% - 46px);margin-bottom:36px;}
.tl-item:nth-child(even){margin-left:auto;}
.tl-item::after{
  content:"";position:absolute;top:34px;width:12px;height:12px;border-radius:50%;
  background:var(--grad);box-shadow:0 0 0 5px rgba(255,106,31,.16),0 0 18px rgba(255,106,31,.6);
  z-index:3;
}
.tl-item:nth-child(odd)::after{left:calc(100% + 46px);}
.tl-item:nth-child(even)::after{left:-46px;}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-card);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(255,106,31,.5);box-shadow:var(--sh-hover);}
.tl-cover{position:relative;aspect-ratio:16/9;overflow:hidden;}
.tl-cover img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
.tl-card:hover .tl-cover img{transform:scale(1.03);}
.tl-body{padding:20px 22px 22px;}
.tl-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;letter-spacing:.4px;color:#CDB9FF;background:rgba(123,97,255,.16);
  border:1px solid rgba(123,97,255,.34);margin-bottom:12px;
}
.tl-tag.t-brand{color:#FFC79A;background:rgba(255,106,31,.14);border-color:rgba(255,106,31,.36);}
.tl-tag.t-cyan{color:#8FF0E6;background:rgba(34,211,197,.13);border-color:rgba(34,211,197,.34);}
.tl-body h3{font-size:21px;line-height:1.45;margin-bottom:10px;}
.tl-body p{font-size:15px;color:var(--t2);line-height:1.9;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.tl-meta{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--t3);
}
.tl-meta .date{font-variant-numeric:tabular-nums;display:inline-flex;align-items:center;gap:6px;}

/* ============ 网格卡 ============ */
.grid-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh-card);display:flex;flex-direction:column;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(255,106,31,.5);box-shadow:var(--sh-hover);}
.post-cover{position:relative;aspect-ratio:16/9;overflow:hidden;}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
.post-card:hover .post-cover img{transform:scale(1.03);}
.post-badge{
  position:absolute;top:12px;left:12px;height:26px;padding:0 12px;border-radius:999px;
  display:inline-flex;align-items:center;font-size:12px;color:#F2F4FF;
  background:rgba(10,11,18,.72);border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(6px);
}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.post-body h3{font-size:19px;line-height:1.5;margin-bottom:10px;transition:color 220ms var(--ease);}
.post-card:hover .post-body h3{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.post-body p{font-size:14.5px;color:var(--t2);line-height:1.9;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--t3);
  font-variant-numeric:tabular-nums;
}
.post-foot .arrow{transition:transform 220ms var(--ease),color 220ms var(--ease);}
.post-card:hover .post-foot .arrow{transform:translateX(4px);color:var(--brand);}
.empty-note{
  grid-column:1/-1;border:1px dashed rgba(255,255,255,.15);border-radius:var(--r-lg);
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  color:var(--t3);font-size:15px;
}

/* ============ 分节导航 ============ */
.pager{
  display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;
}
.pager a,.pager span.pg{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;min-width:42px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);color:var(--t2);font-size:14px;
  transition:all 220ms var(--ease);
}
.pager a:hover{color:#fff;border-color:rgba(255,106,31,.6);background:rgba(255,106,31,.1);transform:translateY(-2px);}
.pager .pg.current{background:var(--grad);color:var(--ink);border-color:transparent;font-weight:700;}
.pager .pg.disabled{opacity:.45;cursor:not-allowed;}

/* ============ CTA 横幅 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--grad);color:var(--ink);
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 24px 60px rgba(255,106,31,.22);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;
  background:repeating-linear-gradient(135deg,rgba(27,15,6,.10) 0 1px,transparent 1px 14px);
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);color:var(--ink);}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(27,15,6,.78);max-width:520px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-note{position:absolute;right:48px;bottom:14px;font-size:13px;color:rgba(27,15,6,.6);z-index:2;}
.btn-ink{background:#1B0F06;color:#FFFFFF;box-shadow:0 10px 26px rgba(27,15,6,.28);}
.btn-ink:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(27,15,6,.34);}
.btn-ink:active{transform:translateY(0);}
.btn-line{border:1px solid rgba(27,15,6,.55);color:var(--ink);}
.btn-line:hover{transform:translateY(-2px);background:rgba(255,255,255,.28);}

/* ============ FAQ ============ */
.faq-sec{background:var(--light);color:#1A1B22;}
.faq-sec .section-head h2{color:#1A1B22;}
.faq-sec .section-head p{color:#5A6070;}
.faq-sec .eyebrow{color:#B4521A;}
.faq-sec .eyebrow::before{background:var(--grad);}
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:#FFFFFF;border:1px solid rgba(26,27,34,.08);border-radius:var(--r-img);
  box-shadow:0 12px 32px rgba(26,27,34,.06);overflow:hidden;
  transition:box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.faq-item:hover{box-shadow:0 16px 40px rgba(26,27,34,.1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:0 20px;text-align:left;font-size:17px;font-weight:600;color:#1A1B22;
  background:none;
}
.faq-q .plus{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid rgba(26,27,34,.16);
  display:inline-flex;align-items:center;justify-content:center;color:#B4521A;
  transition:transform 240ms var(--ease),background 220ms var(--ease),color 220ms var(--ease);
}
.faq-item.open .faq-q .plus{transform:rotate(45deg);background:var(--grad);color:var(--ink);border-color:transparent;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 300ms var(--ease);
}
.faq-a .inner{
  position:relative;padding:0 20px 20px 32px;font-size:15.5px;line-height:1.9;color:#5A6070;
}
.faq-a .inner::before{
  content:"";position:absolute;left:20px;top:4px;bottom:22px;width:3px;border-radius:3px;background:var(--grad);
}
.faq-item.open .faq-a{max-height:320px;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:var(--bg);
  padding:72px 0 32px;margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,106,31,.5),rgba(123,97,255,.4),transparent);
}
.site-footer::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 260px at 12% 0%,rgba(255,106,31,.08),transparent 70%);
}
.site-footer .container{position:relative;z-index:2;}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:32px;}
.footer-brand{
  display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--t1);margin-bottom:16px;
}
.footer-desc{font-size:14px;color:var(--t2);line-height:1.9;max-width:340px;}
.footer-social{display:flex;gap:12px;margin-top:20px;}
.footer-social a{
  width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.16);
  display:inline-flex;align-items:center;justify-content:center;color:var(--t3);
  transition:all 220ms var(--ease);
}
.footer-social a:hover{background:var(--grad);color:var(--ink);border-color:transparent;transform:translateY(-2px);}
.footer-col h4{font-size:15px;color:var(--t1);margin-bottom:16px;letter-spacing:.3px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  position:relative;font-size:14px;color:var(--t2);transition:color 200ms var(--ease);
}
.footer-col a::after{
  content:"";position:absolute;left:0;bottom:-3px;width:0;height:2px;border-radius:2px;
  background:var(--grad);transition:width 220ms var(--ease);
}
.footer-col a:hover{color:#fff;}
.footer-col a:hover::after{width:100%;}
.footer-col p{font-size:14px;color:var(--t2);line-height:1.9;}
.footer-col p + p{margin-top:10px;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--t3);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 18px;border-radius:999px;
  border:1px solid rgba(255,255,255,.16);color:var(--t2);font-size:13px;
  transition:all 220ms var(--ease);
}
.to-top:hover{background:var(--grad);color:var(--ink);border-color:transparent;transform:translateY(-2px);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .section{padding:64px 0;}
  .grid-cards{grid-template-columns:repeat(2,1fr);gap:20px;}
  .footer-grid{grid-template-columns:2fr 1fr 1fr;gap:28px;}
  .footer-grid > div:first-child{grid-column:1/-1;}
  .cta-band{padding:40px;}
  .cta-note{position:static;display:block;margin-top:14px;right:auto;bottom:auto;}
}
@media (max-width:900px){
  .nav-main{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-shell{height:60px;}
  .nav-actions .btn-primary{display:none;}
}
@media (max-width:768px){
  body{font-size:15.5px;}
  .container{padding:0 20px;}
  .section{padding:52px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px;}
  .page-hero{min-height:auto;padding:48px 0 44px;}
  .crumb{justify-content:flex-start;flex-wrap:wrap;}
  .hero-inner{text-align:left;}
  .hero-sub{margin-left:0;}
  .search-form{margin-left:0;}
  .stat-row{justify-content:flex-start;margin-top:24px;}
  .stat{padding:0 18px;text-align:left;}
  .stat:first-child{padding-left:0;}
  .stat b{font-size:21px;}
  .timeline::before{left:9px;transform:none;}
  .tl-item{width:100%;margin:0 0 24px 0;padding-left:44px;}
  .tl-item:nth-child(odd)::after,
  .tl-item:nth-child(even)::after{left:9px;top:28px;}
  .tl-item:nth-child(even){margin-left:0;}
  .grid-cards{grid-template-columns:1fr;gap:18px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 24px;gap:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-grid > div:first-child{grid-column:1/-1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-q{font-size:16px;min-height:52px;}
}
@media (max-width:520px){
  .page-hero h1{font-size:26px;}
  .stat-row{gap:0;}
  .stat{padding:0 12px;}
  .stat span{font-size:12px;}
  .footer-grid{grid-template-columns:1fr;}
  .pager a,.pager .pg{padding:0 12px;font-size:13px;}
}