/* roulang page: index */
:root{
  --bg-0:#0B0C0F; --bg-1:#14161B; --bg-2:#1D2027; --bg-3:#262A33;
  --line:rgba(255,255,255,.08); --line-strong:rgba(255,255,255,.16);
  --text-1:#F3F1EC; --text-2:#A2A5AE; --text-3:#6C7078;
  --brand:#FF5A2D; --brand-hi:#FF7A4D; --brand-2:#FFB020; --accent:#3ED8C8;
  --ok:#35C08A; --warn:#FFB020; --err:#F2544B;
  --r-card:14px; --r-img:12px; --r-btn:10px; --r-badge:6px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 18px 48px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar-w:240px;
  --gap-1:8px; --gap-2:16px; --gap-3:24px; --gap-4:32px; --gap-5:48px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg-0);color:var(--text-1);
  font-family:"Noto Sans SC","Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
ul,ol{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.num{font-family:"Inter","Noto Sans SC",sans-serif;font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px;}

/* ---------- 侧栏 ---------- */
.sidebar{display:none;}
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  position:sticky;top:0;z-index:70;height:60px;padding:0 16px;
  background:rgba(11,12,15,.92);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.topbar-brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:800;}
.topbar-actions{display:flex;align-items:center;gap:6px;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.icon-btn:hover{background:var(--bg-2);color:var(--text-1);}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#0B0C0F;font-weight:900;font-size:17px;line-height:1;
}
.brand-mark.sm{width:28px;height:28px;border-radius:8px;font-size:14px;}

.drawer{
  position:fixed;inset:0;z-index:90;background:var(--bg-1);
  transform:translateX(100%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;padding:18px 20px 28px;overflow-y:auto;
}
.drawer.is-open{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:48px;margin-bottom:12px;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  display:flex;align-items:center;gap:14px;height:64px;padding:0 14px;
  font-size:20px;font-weight:700;color:var(--text-2);border-radius:12px;
  opacity:0;transform:translateY(10px);
  transition:opacity .3s ease,transform .3s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.drawer.is-open .drawer-nav a{opacity:1;transform:none;}
.drawer.is-open .drawer-nav a:nth-child(1){transition-delay:.04s;}
.drawer.is-open .drawer-nav a:nth-child(2){transition-delay:.08s;}
.drawer.is-open .drawer-nav a:nth-child(3){transition-delay:.12s;}
.drawer-nav a.is-active{color:var(--text-1);background:var(--bg-2);}
.drawer-nav a i{width:22px;text-align:center;font-size:17px;color:var(--brand);}
.drawer-foot{margin-top:auto;padding-top:24px;font-size:12px;color:var(--text-3);border-top:1px solid var(--line);}

/* ---------- 主内容包装 ---------- */
.page{display:flex;flex-direction:column;min-height:100vh;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-hi));color:#0B0C0F;}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 10px 26px rgba(255,90,45,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;border:1px solid var(--line-strong);color:var(--text-1);}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);}
.btn-ghost{padding:0;height:auto;color:var(--accent);font-weight:700;}
.btn-ghost .lbl{position:relative;}
.btn-ghost .lbl::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.btn-ghost:hover .lbl::after{transform:scaleX(1);}
.btn-pill{border-radius:999px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;pointer-events:none;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--accent);
  font-size:14px;font-weight:600;transition:gap .2s var(--ease),color .2s var(--ease);
}
.link-arrow i{font-size:12px;transition:transform .2s var(--ease);}
.link-arrow:hover{gap:10px;}
.link-arrow:hover i{transform:translateX(2px);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 9px;border-radius:var(--r-badge);font-size:12px;font-weight:700;line-height:1.6;
}
.badge-brand{background:rgba(255,90,45,.12);color:var(--brand);border:1px solid rgba(255,90,45,.2);}
.badge-amber{background:rgba(255,176,32,.12);color:var(--brand-2);border:1px solid rgba(255,176,32,.2);}
.badge-accent{background:rgba(62,216,200,.12);color:var(--accent);border:1px solid rgba(62,216,200,.2);}
.badge-plain{background:var(--bg-3);color:var(--text-2);border:1px solid var(--line);}

/* ---------- 首屏 ---------- */
.hero{position:relative;overflow:hidden;min-height:min(86vh,760px);display:flex;align-items:flex-end;border-bottom:1px solid var(--line);}
.hero-bg{position:absolute;inset:0;background:var(--bg-2) center/cover no-repeat;animation:kb 12s ease-out forwards;}
.hero-bg.img-fallback{background-image:none;}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(to top,rgba(11,12,15,.94) 0%,rgba(11,12,15,.35) 45%,rgba(11,12,15,.75) 100%);
}
@keyframes kb{from{transform:scale(1.06) translateY(0);}to{transform:scale(1.14) translateY(-10px);}}
.hero-inner{position:relative;z-index:2;width:100%;padding-top:120px;padding-bottom:56px;}
.hero-content{max-width:660px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(255,90,45,.12);border:1px solid rgba(255,90,45,.28);
  color:var(--brand);font-size:13px;font-weight:700;margin-bottom:22px;
}
.hero h1{
  font-size:clamp(30px,4.6vw,56px);font-weight:900;line-height:1.16;
  letter-spacing:-.02em;margin-bottom:18px;
}
.hero-sub{font-size:clamp(16px,1.4vw,19px);color:var(--text-2);line-height:1.8;margin-bottom:30px;}
.hero-cta{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;
  background:var(--bg-2);border:1px solid var(--line);color:var(--text-2);
  font-size:13px;transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.chip:hover{color:var(--accent);border-color:rgba(62,216,200,.4);background:var(--bg-3);}
.hero-stats{display:flex;flex-wrap:wrap;gap:40px;padding-top:24px;border-top:1px solid var(--line);}
.hero-stat strong{display:block;font-size:26px;font-weight:900;letter-spacing:-.01em;color:var(--text-1);}
.hero-stat span{font-size:12px;color:var(--text-3);letter-spacing:.04em;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-tight{padding:80px 0;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.section-head h2{
  font-size:clamp(22px,2.6vw,34px);font-weight:800;letter-spacing:-.01em;line-height:1.28;
}
.section-sub{margin-top:10px;color:var(--text-2);font-size:15px;max-width:620px;}
.section-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.rail-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line-strong);
  color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;
  transition:all .2s var(--ease);
}
.rail-btn:hover:not([disabled]){border-color:var(--accent);color:var(--accent);}
.rail-btn[disabled]{opacity:.35;cursor:not-allowed;}

/* ---------- 横滑轨道 ---------- */
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:10px;scrollbar-width:none;-ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none;}
.poster-card{
  position:relative;flex:0 0 272px;scroll-snap-align:start;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;padding-bottom:18px;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease);
}
.poster-card:hover,.poster-card:focus-visible{
  transform:translateY(-4px);box-shadow:var(--sh-2);
  border-color:rgba(62,216,200,.35);background:var(--bg-3);
}
.poster-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-3);}
.poster-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease);}
.poster-card:hover .poster-media img{transform:scale(1.04);}
.poster-media .badge{position:absolute;top:10px;left:10px;z-index:2;backdrop-filter:blur(4px);}
.hover-bar{
  position:absolute;left:0;right:0;bottom:0;display:flex;align-items:center;gap:6px;
  padding:22px 16px 10px;font-size:13px;font-weight:600;color:var(--text-1);
  background:linear-gradient(to top,rgba(11,12,15,.94) 0%,rgba(11,12,15,.35) 60%,rgba(11,12,15,0) 100%);
  opacity:0;transform:translateY(6px);
  transition:opacity .24s var(--ease),transform .24s var(--ease);
}
.poster-card:hover .hover-bar,.poster-card:focus-visible .hover-bar{opacity:1;transform:none;}
.poster-card h3{
  padding:14px 16px 0;font-size:17px;font-weight:700;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.poster-card .meta{padding:6px 16px 0;font-size:13px;color:var(--text-3);}

/* ---------- 热播推荐 ---------- */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:stretch;}
.feature-main{
  position:relative;display:block;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);min-height:440px;background:var(--bg-2);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.feature-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.feature-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.feature-main:hover img{transform:scale(1.03);}
.feature-main .veil{
  position:absolute;inset:0;
  background:linear-gradient(to top,rgba(11,12,15,.94) 0%,rgba(11,12,15,.35) 45%,rgba(11,12,15,.75) 100%);
}
.feature-body{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:flex-end;padding:32px;}
.feature-body h3{font-size:clamp(20px,2vw,26px);font-weight:800;margin:14px 0 12px;line-height:1.35;letter-spacing:-.01em;}
.feature-body p{color:var(--text-2);font-size:15px;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.feature-body .link-arrow{margin-top:18px;}

.rank-panel{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  padding:14px;display:flex;flex-direction:column;
}
.rank-head{padding:10px 12px 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);}
.rank-head h3{font-size:16px;font-weight:800;}
.rank-head span{font-size:12px;color:var(--text-3);}
.rank-list{display:flex;flex-direction:column;padding-top:6px;}
.rank-row{
  display:flex;align-items:center;gap:16px;padding:13px 12px;border-radius:10px;
  border:1px solid transparent;
  transition:background .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.rank-row:hover{background:var(--bg-2);transform:translateX(4px);border-color:rgba(62,216,200,.35);}
.rank-no{
  font-size:48px;font-weight:900;line-height:.9;color:transparent;
  -webkit-text-stroke:1px rgba(243,241,236,.28);flex:0 0 auto;width:62px;
}
.rank-info{min-width:0;flex:1;}
.rank-info h4{font-size:15px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.rank-info p{font-size:12px;color:var(--text-3);margin-top:2px;}
.rank-arrow{color:var(--text-3);font-size:12px;transition:transform .2s var(--ease),color .2s var(--ease);}
.rank-row:hover .rank-arrow{color:var(--accent);transform:translateX(4px);}

/* ---------- 图文交错 ---------- */
.zigzag{border-top:1px solid var(--line);}
.zig-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:48px 0;border-bottom:1px solid var(--line);
}
.zig-row:nth-child(even) .zig-media{order:2;}
.zig-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/10;background:var(--bg-2);}
.zig-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.zig-row:hover .zig-media img{transform:scale(1.03);}
.zig-body h3{font-size:clamp(19px,1.8vw,24px);font-weight:800;margin-bottom:14px;letter-spacing:-.01em;line-height:1.4;}
.zig-body p{color:var(--text-2);font-size:15px;line-height:1.85;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.serif-title{font-family:"Noto Serif SC","Noto Sans SC",serif;}

/* ---------- 路径流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step{
  position:relative;background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:rgba(62,216,200,.35);box-shadow:var(--sh-2);}
.step-no{
  font-size:44px;font-weight:900;line-height:1;color:transparent;
  -webkit-text-stroke:1px rgba(255,90,45,.65);margin-bottom:18px;
}
.step h3{font-size:17px;font-weight:700;margin-bottom:10px;}
.step p{font-size:14px;color:var(--text-2);line-height:1.8;}

/* ---------- CTA 横幅 ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--bg-1);border:1px solid var(--line);border-radius:18px;padding:44px 48px;}
.cta-band::before{
  content:"";position:absolute;top:-60%;left:-10%;width:70%;height:220%;
  background:linear-gradient(115deg,rgba(255,90,45,.22),rgba(255,90,45,0) 70%);
  transform:rotate(8deg);pointer-events:none;
}
.cta-band::after{content:"";position:absolute;inset:0;border:1px solid rgba(62,216,200,.22);border-radius:18px;pointer-events:none;}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;}
.cta-inner h2{font-size:clamp(21px,2.2vw,30px);font-weight:800;letter-spacing:-.01em;margin-bottom:10px;}
.cta-inner p{color:var(--text-2);font-size:15px;max-width:560px;}
.cta-actions{display:flex;align-items:center;gap:20px;flex:0 0 auto;}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
  transition:transform .24s var(--ease),background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.news-card:hover{transform:translateY(-4px);background:var(--bg-3);box-shadow:var(--sh-2);border-color:rgba(62,216,200,.3);}
.news-media{position:relative;aspect-ratio:16/9;background:var(--bg-3);overflow:hidden;}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease);}
.news-card:hover .news-media img{transform:scale(1.04);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.news-body .badge{align-self:flex-start;margin-bottom:14px;}
.news-body h3{
  font-size:17px;font-weight:700;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.news-date{font-size:12px;color:var(--text-3);}
.news-foot .link-arrow{font-size:13px;}

.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-height:220px;gap:14px;background:var(--bg-1);border:1px dashed var(--line-strong);
  border-radius:var(--r-card);text-align:center;padding:32px;
}
.empty-state i{font-size:40px;color:var(--text-3);}
.empty-state p{font-size:15px;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  list-style:none;cursor:pointer;padding:20px 4px;font-size:16px;font-weight:600;
  color:var(--text-1);transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--accent);}
.faq-icon{
  flex:0 0 auto;width:24px;height:24px;position:relative;
  transition:transform .24s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--accent);border-radius:2px;
}
.faq-icon::before{left:4px;right:4px;top:11px;height:2px;}
.faq-icon::after{top:4px;bottom:4px;left:11px;width:2px;transition:opacity .24s var(--ease);}
.faq-item[open] .faq-icon{transform:rotate(90deg);}
.faq-item[open] .faq-icon::after{opacity:0;}
.faq-panel{
  background:var(--bg-1);border-radius:12px;padding:18px 22px;margin:0 0 20px;
  font-size:15px;line-height:1.85;color:var(--text-2);
}

/* ---------- 入场动效 ---------- */
.js-enabled .reveal{opacity:0;transform:translateY(12px);transition:opacity .55s ease,transform .55s var(--ease);}
.js-enabled .reveal.is-in{opacity:1;transform:none;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);margin-top:auto;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 32px 48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.85;max-width:320px;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a,.footer-col li span{font-size:14px;color:var(--text-2);transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{border-top:1px solid var(--line);}
.footer-bottom .container{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:20px;padding-bottom:20px;font-size:12px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (min-width:1024px){
  .sidebar{
    display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;
    width:var(--sidebar-w);background:var(--bg-1);border-right:1px solid var(--line);
    padding:0 16px 20px;z-index:60;overflow-y:auto;
  }
  .sidebar .brand{
    display:flex;align-items:center;gap:11px;height:72px;padding:0 8px;
    margin-bottom:18px;border-bottom:1px solid var(--line);
    font-size:15px;font-weight:800;letter-spacing:-.01em;flex:0 0 auto;
  }
  .nav-main{display:flex;flex-direction:column;gap:4px;}
  .nav-item{
    position:relative;display:flex;align-items:center;gap:12px;height:44px;
    padding:0 14px;border-radius:10px;font-size:14.5px;color:var(--text-2);
    transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
  }
  .nav-item i{width:18px;text-align:center;font-size:15px;}
  .nav-item:hover{color:var(--text-1);background:var(--bg-2);transform:translateX(2px);}
  .nav-item.is-active{color:var(--text-1);background:var(--bg-2);font-weight:700;}
  .nav-item.is-active::before{
    content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;
    border-radius:3px;background:var(--brand);
  }
  .nav-divider{height:1px;background:var(--line);margin:18px 0;}
  .side-search{position:relative;}
  .side-search input{
    width:100%;height:42px;padding:0 40px 0 12px;background:var(--bg-2);
    border:1px solid var(--line);border-radius:10px;color:var(--text-1);font-size:14px;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .side-search input::placeholder{color:var(--text-3);}
  .side-search input:hover{border-color:var(--line-strong);}
  .side-search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(62,216,200,.2);}
  .side-search button{
    position:absolute;right:6px;top:50%;transform:translateY(-50%);
    width:30px;height:30px;border-radius:8px;color:var(--text-3);
    display:inline-flex;align-items:center;justify-content:center;transition:color .2s var(--ease);
  }
  .side-search button:hover{color:var(--accent);}
  .side-foot{margin-top:auto;padding-top:24px;font-size:12px;color:var(--text-3);line-height:1.9;}
  .topbar{display:none;}
  .drawer{display:none;}
  .page{padding-left:var(--sidebar-w);}
}
@media (min-width:1280px){
  .container{max-width:1240px;}
}
@media (min-width:1440px){
  .container{max-width:1280px;}
  .news-grid{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:1279px) and (min-width:1024px){
  .feature-grid{grid-template-columns:6fr 6fr;}
  .rank-no{font-size:38px;width:52px;}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
}
@media (max-width:1023px){
  .hero{min-height:56vh;}
  .hero-inner{padding-top:72px;padding-bottom:44px;}
  .hero-content{max-width:100%;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-main{min-height:340px;}
  .zig-row{grid-template-columns:1fr;gap:28px;padding:36px 0;}
  .zig-row:nth-child(even) .zig-media{order:0;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 32px 36px;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-tight{padding:52px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:26px;}
  .section-tools{width:100%;justify-content:space-between;}
  .hero{min-height:420px;}
  .hero-inner{padding-top:56px;padding-bottom:36px;}
  .hero h1{font-size:29px;}
  .hero-sub{font-size:15px;margin-bottom:24px;}
  .hero-cta{flex-direction:column;align-items:stretch;gap:12px;}
  .hero-cta .btn{width:100%;}
  .hero-cta .link-arrow{justify-content:center;}
  .hero-stats{gap:24px;}
  .hero-stat strong{font-size:22px;}
  .poster-card{flex:0 0 78vw;}
  .rank-no{font-size:34px;width:46px;}
  .rank-row{gap:12px;padding:12px 8px;}
  .steps{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .cta-band{padding:30px 24px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;}
  .cta-actions{width:100%;flex-direction:column;align-items:stretch;gap:14px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding:40px 20px 28px;}
  .footer-desc{max-width:100%;}
  .feature-body{padding:24px;}
  .drawer-nav a{font-size:18px;height:58px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .js-enabled .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --bg-0:#0B0C0F;
  --bg-1:#14161B;
  --bg-2:#1D2027;
  --bg-3:#262A33;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text-1:#F3F1EC;
  --text-2:#A2A5AE;
  --text-3:#6C7078;
  --text-body:#D9D6CF;
  --brand:#FF5A2D;
  --brand-hi:#FF7A4D;
  --brand-2:#FFB020;
  --accent:#3ED8C8;
  --ok:#35C08A;
  --err:#F2544B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 18px 48px rgba(0,0,0,.55);
  --sidebar:240px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:'Noto Sans SC','Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:rgba(255,90,45,.35);color:#fff}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}

/* ============ 左侧竖向导航 / 移动端顶部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar);
  background:var(--bg-1);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  z-index:80;
  overflow-y:auto;
}
.brand-row{padding:0 20px;height:72px;display:flex;align-items:center;border-bottom:1px solid var(--line);flex-shrink:0}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  display:grid;place-items:center;
  font-weight:900;font-size:17px;color:#0B0C0F;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
}
.brand-mark.sm{width:28px;height:28px;border-radius:8px;font-size:14px}
.brand-text{font-weight:800;font-size:16px;letter-spacing:-.01em;white-space:nowrap}
.nav-main{padding:16px 12px;display:flex;flex-direction:column;gap:4px;border-bottom:1px solid var(--line)}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 14px;border-radius:10px;
  color:var(--text-2);font-size:14.5px;font-weight:500;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.nav-item i{width:18px;text-align:center;font-size:15px;opacity:.85}
.nav-item:hover{background:var(--bg-2);color:var(--text-1);transform:translateX(2px)}
.nav-item.is-active{background:var(--bg-2);color:var(--text-1);font-weight:700}
.nav-item.is-active::before{
  content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:0 3px 3px 0;background:var(--brand);
}
.side-search{padding:16px 16px 0}
.search-form{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-btn);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-form:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(62,216,200,.16)}
.search-form i{color:var(--text-3);font-size:13px}
.search-form input{flex:1;min-width:0;background:none;border:none;outline:none;font-size:14px}
.search-form input::placeholder{color:var(--text-3)}
.side-foot{margin-top:auto;padding:18px 20px 24px;border-top:1px solid var(--line);font-size:12px;color:var(--text-3);line-height:1.7}
.side-foot p{margin:0 0 6px}
.side-foot span{display:block}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);
  background:var(--bg-2);border:1px solid var(--line);
  align-items:center;justify-content:center;font-size:16px;flex-shrink:0;
}
.menu-toggle:hover{border-color:var(--accent);color:var(--accent)}

.site-main{padding-left:var(--sidebar);min-height:100vh}

@media (max-width:1023px){
  .site-header{
    position:sticky;top:0;left:0;right:0;bottom:auto;
    width:100%;height:64px;flex-direction:row;align-items:center;justify-content:space-between;
    padding:0 16px;overflow:visible;border-right:none;border-bottom:1px solid var(--line);
    background:rgba(11,12,15,.92);
    -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  }
  .brand-row{height:auto;padding:0;border-bottom:none}
  .nav-main,.side-search,.side-foot{display:none}
  .menu-toggle{display:flex}
  .site-header.is-open{
    position:fixed;height:100vh;flex-direction:column;align-items:stretch;justify-content:flex-start;
    background:var(--bg-1);-webkit-backdrop-filter:none;backdrop-filter:none;
    padding:0;overflow-y:auto;
  }
  .site-header.is-open .brand-row{height:64px;padding:0 16px;border-bottom:1px solid var(--line)}
  .site-header.is-open .menu-toggle{position:absolute;top:12px;right:16px}
  .site-header.is-open .nav-main{display:flex;flex-direction:column;gap:2px;padding:18px 12px;border-bottom:1px solid var(--line)}
  .site-header.is-open .nav-item{height:56px;font-size:17px;font-weight:700;padding:0 16px}
  .site-header.is-open .side-search{display:block;padding:18px 16px 0}
  .site-header.is-open .side-foot{display:block;margin-top:auto;padding:20px 16px 32px}
  .site-main{padding-left:0}
}

/* ============ 文章页头部横幅 ============ */
.page-banner{
  position:relative;
  padding:52px 0 44px;
  background-color:var(--bg-2);
  background-image:linear-gradient(to top,rgba(11,12,15,.94) 0%,rgba(11,12,15,.35) 45%,rgba(11,12,15,.75) 100%),url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{opacity:.55}
.breadcrumb .current{color:var(--text-2);max-width:56ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.post-head .badge{margin-bottom:16px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
  border-radius:var(--r-badge);font-size:12px;font-weight:600;
  background:rgba(255,90,45,.12);color:var(--brand-hi);border:1px solid rgba(255,90,45,.28);
}
.badge.is-gold{background:rgba(255,176,32,.12);color:var(--brand-2);border-color:rgba(255,176,32,.28)}
.badge.is-cyan{background:rgba(62,216,200,.12);color:var(--accent);border-color:rgba(62,216,200,.28)}
.post-head h1{
  font-size:clamp(28px,3.6vw,46px);
  line-height:1.28;font-weight:900;letter-spacing:-.02em;
  margin:0 0 18px;max-width:24ch;word-break:break-word;overflow-wrap:anywhere;
}
.post-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px;color:var(--text-3)}
.post-meta span{display:inline-flex;align-items:center;gap:7px}
.post-meta i{font-size:12px;opacity:.8}

/* ============ 正文与侧栏 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;
  padding-top:48px;padding-bottom:16px;align-items:start;
}
.article-main{min-width:0}
.article-body{
  font-size:16px;line-height:1.9;color:var(--text-body);
  word-break:break-word;overflow-wrap:anywhere;
}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;font-size:22px;line-height:1.5;font-weight:800;color:var(--text-1);
  margin:40px 0 16px;padding-left:14px;letter-spacing:-.01em;
}
.article-body h2::before{
  content:'';position:absolute;left:0;top:.3em;width:4px;height:1.05em;
  border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:18px;font-weight:700;color:var(--text-1);margin:28px 0 12px}
.article-body h4{font-size:16px;font-weight:700;color:var(--text-1);margin:22px 0 10px}
.article-body a{color:var(--accent);border-bottom:1px solid rgba(62,216,200,.35)}
.article-body a:hover{color:#66E6D8;border-bottom-color:rgba(102,230,216,.7)}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--bg-1);
  border-left:3px solid var(--brand);border-radius:var(--r-img);color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul{list-style:none;margin:0 0 20px;padding:0}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px}
.article-body ul li::before{
  content:'';position:absolute;left:0;top:.68em;width:7px;height:7px;
  border-radius:2px;background:var(--accent);
}
.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body ol li{margin-bottom:10px}
.article-body img{border-radius:var(--r-img);margin:24px auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body pre{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-img);
  padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;
  font-family:'Inter',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  margin:0 0 22px;
}
.article-body code{
  background:var(--bg-2);border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:14px;
  font-family:'Inter',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre code{background:none;border:none;padding:0}
.article-body table{
  display:block;width:100%;max-width:100%;overflow-x:auto;
  border-collapse:collapse;border:1px solid var(--line);border-radius:var(--r-img);
  margin:0 0 22px;font-size:14.5px;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body th{background:var(--bg-2);color:var(--text-1);font-weight:700}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0}

.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:40px 24px;
  background:var(--bg-1);border:1px dashed var(--line-strong);border-radius:var(--r-card);
}
.empty-state i{font-size:38px;color:var(--text-3)}
.empty-state p{font-size:15px;color:var(--text-2);margin:0}

.tag-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:46px;padding-top:26px;border-top:1px solid var(--line);
}
.tag-row .label{font-size:13px;color:var(--text-3);margin-right:4px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:8px;
  font-size:13px;color:var(--text-2);background:var(--bg-2);border:1px solid var(--line);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.tag:hover{color:var(--accent);border-color:rgba(62,216,200,.4);background:var(--bg-3)}

.article-aside{display:flex;flex-direction:column}
.sticky{position:sticky;top:24px}
.aside-card{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:22px}
.aside-card + .aside-card{margin-top:20px}
.aside-card h3{
  display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;
  color:var(--text-1);margin:0 0 14px;
}
.aside-card h3 i{color:var(--brand);font-size:14px}
.aside-list{list-style:none;display:flex;flex-direction:column;gap:2px}
.aside-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:var(--r-btn);font-size:14px;color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.aside-list a:hover{background:var(--bg-2);color:var(--accent);transform:translateX(2px)}
.aside-list a i{font-size:11px;opacity:.6}
.aside-note{list-style:none;display:flex;flex-direction:column;gap:10px;margin-bottom:18px}
.aside-note li{position:relative;padding-left:18px;font-size:14px;color:var(--text-2);line-height:1.7}
.aside-note li::before{
  content:'';position:absolute;left:0;top:.65em;width:6px;height:6px;border-radius:2px;background:var(--accent);
}
.aside-card .btn{width:100%}

@media (max-width:1023px){
  .article-layout{grid-template-columns:1fr;gap:32px;padding-top:34px}
  .article-aside{order:2}
  .sticky{position:static}
}

/* ============ 通用板块 ============ */
.section{padding:52px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;letter-spacing:-.01em;line-height:1.35}
.section-head .sub{font-size:14px;color:var(--text-2);margin-top:8px}
.more-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--accent);white-space:nowrap}
.more-link i{transition:transform .22s var(--ease)}
.more-link:hover i{transform:translateX(4px)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:700;white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),filter .22s var(--ease);
}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-hi));color:#0B0C0F;box-shadow:0 8px 22px rgba(255,90,45,.24)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{background:transparent;border:1px solid var(--line-strong);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:var(--r-btn)}
.btn-block{width:100%}

/* 继续浏览双卡 */
.next-prev{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.next-card{
  display:flex;gap:16px;align-items:center;
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:20px;
  transition:background .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.next-card:hover{background:var(--bg-2);border-color:rgba(62,216,200,.35);transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.next-card .arrow{font-size:18px;color:var(--brand);flex-shrink:0}
.next-card .dir{font-size:12px;color:var(--text-3);letter-spacing:.06em}
.next-card strong{display:block;font-size:16px;font-weight:700;color:var(--text-1);margin:6px 0 4px}
.next-card p{font-size:13px;color:var(--text-2);line-height:1.7}

/* 内容卡片网格 */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  transition:background .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.post-card:hover{background:var(--bg-3);border-color:rgba(62,216,200,.35);transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-3)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.thumb-tag{
  position:absolute;left:12px;top:12px;
  display:inline-flex;align-items:center;height:24px;padding:0 9px;border-radius:var(--r-badge);
  font-size:12px;font-weight:700;color:#0B0C0F;background:var(--brand);
}
.thumb-tag.is-gold{background:var(--brand-2)}
.post-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{
  font-size:16.5px;font-weight:700;line-height:1.5;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-body p{
  font-size:14px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;font-size:12px;color:var(--text-3);padding-top:6px;
}
.post-foot .go{color:var(--accent);display:inline-flex;align-items:center;gap:5px}
.post-foot .go i{transition:transform .22s var(--ease)}
.post-card:hover .post-foot .go i{transform:translateX(4px)}

@media (max-width:1023px){
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .grid-3{grid-template-columns:1fr}
  .next-prev{grid-template-columns:1fr}
}

/* CTA 横幅 */
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:var(--bg-1);border:1px solid rgba(62,216,200,.28);
  border-radius:18px;padding:40px;
}
.cta-band::before{
  content:'';position:absolute;inset:-40% -10%;pointer-events:none;
  background:linear-gradient(100deg,transparent 20%,rgba(255,90,45,.18) 48%,transparent 78%);
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;letter-spacing:-.01em;margin-bottom:10px}
.cta-band p{font-size:15px;color:var(--text-2);max-width:56ch;line-height:1.8}
.cta-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}

@media (max-width:768px){
  .section{padding:40px 0}
  .cta-band{flex-direction:column;align-items:stretch;padding:28px 22px;gap:22px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .section-head{flex-direction:column;align-items:flex-start}
}

/* ============ 页脚 ============ */
.site-footer{margin-left:var(--sidebar);background:var(--bg-1);border-top:1px solid var(--line);padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;margin-bottom:14px}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.8;max-width:36ch}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:16px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid var(--line);padding:18px 0}
.footer-bottom .container{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;font-size:12px;color:var(--text-3)}

@media (max-width:1023px){
  .site-footer{margin-left:0;padding-top:44px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .container{padding:0 18px}
  .page-banner{padding:34px 0 30px}
  .post-head h1{max-width:none}
}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --bg-0:#0B0C0F;
  --bg-1:#14161B;
  --bg-2:#1D2027;
  --bg-3:#262A33;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text-1:#F3F1EC;
  --text-2:#A2A5AE;
  --text-3:#6C7078;
  --brand:#FF5A2D;
  --brand-hi:#FF7A4D;
  --brand-2:#FFB020;
  --accent:#3ED8C8;
  --ok:#35C08A;
  --warn:#FFB020;
  --err:#F2544B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --sh-card:0 8px 24px rgba(0,0,0,.35);
  --sh-hover:0 18px 48px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --side:240px;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"Noto Sans SC","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease)}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em}
h1{font-size:clamp(30px,4.6vw,52px);font-weight:900;letter-spacing:-.02em;line-height:1.18}
h2{font-size:clamp(22px,2.6vw,32px);font-weight:800}
h3{font-size:20px;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
::selection{background:rgba(255,90,45,.35);color:#fff}

/* ============ 布局骨架 ============ */
.layout{display:flex;min-height:100vh}
.content-area{flex:1;min-width:0;margin-left:var(--side)}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}

/* ============ 左侧导航 ============ */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--side);
  background:var(--bg-1);border-right:1px solid var(--line);
  display:flex;flex-direction:column;z-index:60;
}
.brand{
  display:flex;align-items:center;gap:12px;
  height:72px;padding:0 20px;border-bottom:1px solid var(--line);
}
.brand-mark{
  width:38px;height:38px;flex:none;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#0B0C0F;font-weight:900;font-size:19px;letter-spacing:-.02em;
}
.brand-mark.sm{width:28px;height:28px;border-radius:8px;font-size:15px}
.brand-text{display:flex;flex-direction:column;line-height:1.25;font-weight:700;font-size:15px}
.brand-text em{font-style:normal;font-size:11px;color:var(--text-3);font-weight:400;letter-spacing:.02em}
.nav-main{display:flex;flex-direction:column;padding:16px 12px;gap:4px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 14px;border-radius:var(--r-btn);
  color:var(--text-2);font-size:15px;font-weight:500;
}
.nav-item i{width:18px;text-align:center;font-size:15px;color:var(--text-3);transition:color .2s var(--ease)}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:0;height:22px;background:var(--brand);border-radius:0 3px 3px 0;
  transition:width .2s var(--ease);
}
.nav-item:hover{color:var(--text-1);transform:translateX(2px)}
.nav-item:hover i{color:var(--accent)}
.nav-item.is-active{background:var(--bg-2);color:var(--text-1);font-weight:700}
.nav-item.is-active i{color:var(--brand)}
.nav-item.is-active::before{width:3px}
.side-divider{height:1px;background:var(--line);margin:12px 20px 0}
.side-search{padding:16px 20px 8px}
.side-search label{display:block;font-size:12px;color:var(--text-3);margin-bottom:8px}
.search-box{position:relative}
.search-box i{position:absolute;left:14px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--text-3)}
.search-box input{
  width:100%;height:44px;padding:0 14px 0 36px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-btn);
  color:var(--text-1);font-size:14px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box input::placeholder{color:var(--text-3)}
.search-box input:hover{border-color:var(--line-strong)}
.search-box input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(62,216,200,.2)}
.side-foot{margin-top:auto;padding:18px 20px 22px;border-top:1px solid var(--line);font-size:12px;color:var(--text-3);line-height:1.7}

/* ============ 移动端顶栏与抽屉 ============ */
.topbar{
  display:none;position:sticky;top:0;z-index:70;
  height:60px;padding:0 18px;
  align-items:center;justify-content:space-between;
  background:rgba(11,12,15,.92);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.topbar .brand{padding:0;height:auto;border:none;background:none}
.topbar-actions{display:flex;align-items:center;gap:6px}
.icon-btn{
  width:42px;height:42px;border-radius:var(--r-btn);display:grid;place-items:center;
  color:var(--text-2);font-size:16px;
}
.icon-btn:hover{background:var(--bg-2);color:var(--text-1)}
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--bg-1);
  transform:translateY(-8px);opacity:0;pointer-events:none;
  transition:opacity .24s var(--ease),transform .24s var(--ease);
  padding:20px;overflow-y:auto;
}
.drawer.is-open{opacity:1;transform:none;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-head .brand{border:none;background:none;padding:0;height:auto}
.drawer nav{display:flex;flex-direction:column;gap:6px}
.drawer .nav-item{height:64px;font-size:20px;font-weight:700;padding:0 16px}
.drawer .nav-item::before{height:28px}
.drawer .side-search{padding:20px 0 0}
.drawer-foot{margin-top:28px;padding-top:18px;border-top:1px solid var(--line);font-size:12px;color:var(--text-3)}

/* ============ 通用组件 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;gap:8px;align-items:center;
  font-size:13px;color:var(--text-3);padding:28px 0 0;
}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:var(--text-3);opacity:.7}
.breadcrumb .current{color:var(--text-2)}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:var(--r-badge);
  font-size:12px;font-weight:500;line-height:1.6;
  background:rgba(255,90,45,.12);color:var(--brand);border:1px solid rgba(255,90,45,.2);
}
.badge.gold{background:rgba(255,176,32,.12);color:var(--brand-2);border-color:rgba(255,176,32,.2)}
.badge.cyan{background:rgba(62,216,200,.12);color:var(--accent);border-color:rgba(62,216,200,.2)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-hi));
  color:#0B0C0F;box-shadow:0 6px 18px rgba(255,90,45,.24);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;color:var(--text-1);
  border:1px solid var(--line-strong);
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--accent);
  font-size:15px;font-weight:500;position:relative;padding-bottom:2px;
}
.btn-link::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--accent);transition:width .24s var(--ease);
}
.btn-link:hover::after{width:100%}
.btn-link i{font-size:12px;transition:transform .24s var(--ease)}
.btn-link:hover i{transform:translateX(4px)}
.btn:disabled,.btn.is-disabled{opacity:.4;cursor:not-allowed}
.pill{border-radius:999px}

.section{padding:88px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head .lead{margin-top:12px;color:var(--text-2);font-size:16px;max-width:720px}
.section-head h2 .mark{color:var(--brand)}

.hr{height:1px;background:var(--line);border:none;margin:0}

/* ============ Hero ============ */
.hero{position:relative;padding-top:34px}
.hero-panel{
  position:relative;overflow:hidden;border-radius:20px;
  border:1px solid var(--line);background:var(--bg-1);
  min-height:min(62vh,540px);display:flex;align-items:flex-end;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  transform:scale(1.04);
  animation:kenburns 12s ease-in-out infinite alternate;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(11,12,15,.94) 0%,rgba(11,12,15,.35) 45%,rgba(11,12,15,.75) 100%);
}
@keyframes kenburns{
  from{transform:scale(1.04) translate3d(0,0,0)}
  to{transform:scale(1.11) translate3d(-12px,-8px,0)}
}
.hero-inner{position:relative;z-index:2;padding:48px 44px;max-width:820px}
.hero h1{margin:14px 0 16px}
.hero h1 .hl{color:var(--brand)}
.hero-sub{color:var(--text-2);font-size:17px;max-width:620px;margin-bottom:28px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;padding-top:22px;border-top:1px solid var(--line)}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;background:var(--bg-2);
  border:1px solid var(--line);font-size:13px;color:var(--text-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.chip:hover{color:var(--accent);border-color:rgba(62,216,200,.4);transform:translateY(-2px)}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;
  margin-top:26px;padding-top:24px;border-top:1px solid var(--line);max-width:640px;
}
.hero-stats .num{
  font-family:"Inter",sans-serif;font-weight:900;font-size:30px;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;color:var(--text-1);
}
.hero-stats .lbl{font-size:12px;color:var(--text-3);margin-top:2px}

/* ============ 筛选条 ============ */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.filter-btn{
  padding:9px 18px;border-radius:999px;font-size:14px;
  background:var(--bg-2);border:1px solid var(--line);color:var(--text-2);
  transition:all .2s var(--ease);
}
.filter-btn:hover{border-color:var(--line-strong);color:var(--text-1)}
.filter-btn.is-active{
  background:rgba(255,90,45,.12);color:var(--brand);
  border-color:rgba(255,90,45,.45);font-weight:700;
}

/* ============ 卖点卡 ============ */
.value-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.value-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.value-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(62,216,200,.35)}
.value-ico{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--bg-2);border:1px solid var(--line);color:var(--brand);font-size:18px;margin-bottom:16px;
}
.value-card h3{font-size:17px;margin-bottom:8px}
.value-card p{color:var(--text-2);font-size:14px;line-height:1.75}

/* ============ 大图首卡 ============ */
.feature-banner{
  position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--line);
  min-height:360px;display:flex;align-items:flex-end;margin-top:24px;
}
.feature-banner .fb-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center 30%;
}
.feature-banner .fb-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(11,12,15,.94) 0%,rgba(11,12,15,.45) 55%,rgba(11,12,15,.7) 100%);
}
.fb-inner{position:relative;z-index:2;padding:36px 38px;max-width:700px}
.fb-inner h3{font-size:clamp(20px,2.2vw,28px);font-weight:800;margin:12px 0 12px}
.fb-inner p{color:var(--text-2);font-size:15px;margin-bottom:22px}
.fb-meta{display:flex;flex-wrap:wrap;gap:18px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.fb-meta span{display:inline-flex;align-items:center;gap:6px}

/* ============ 海报网格 ============ */
.poster-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin-top:26px}
.poster-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
  display:flex;flex-direction:column;
}
.poster-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(62,216,200,.35)}
.poster-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-3)}
.poster-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s var(--ease)}
.poster-card:hover .poster-thumb img{transform:scale(1.04)}
.poster-tag{position:absolute;top:10px;left:10px;z-index:2}
.poster-body{padding:16px 16px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.poster-body h3{
  font-size:15px;font-weight:700;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.poster-body p{
  font-size:13px;color:var(--text-2);line-height:1.7;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.poster-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-3)}
.poster-meta .go{color:var(--accent);font-weight:500;display:inline-flex;align-items:center;gap:5px}
.poster-card:hover .poster-meta .go i{transform:translateX(4px)}
.poster-meta .go i{transition:transform .24s var(--ease)}

/* ============ 步骤流程 ============ */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px;margin-top:8px}
.step{
  position:relative;background:var(--bg-1);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px 20px;
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:rgba(255,90,45,.35)}
.step-num{
  font-family:"Inter",sans-serif;font-weight:900;font-size:36px;
  color:transparent;-webkit-text-stroke:1px rgba(255,90,45,.55);
  line-height:1;margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.step h3{font-size:16px;margin-bottom:8px}
.step p{font-size:13px;color:var(--text-2);line-height:1.72}

/* ============ 图文交错 ============ */
.split-row{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  padding:38px 0;border-top:1px solid var(--line);
}
.split-row:first-of-type{border-top:none}
.split-row.reverse .split-media{order:2}
.split-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/10}
.split-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.split-text h3{font-size:clamp(19px,2vw,24px);font-weight:800;margin-bottom:12px}
.split-text p{color:var(--text-2);font-size:15px;line-height:1.8;margin-bottom:16px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}

/* ============ FAQ ============ */
.faq-list{margin-top:8px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 4px;font-size:16px;font-weight:600;color:var(--text-1);
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--accent)}
.faq-item summary .sign{
  flex:none;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  background:var(--bg-2);border:1px solid var(--line);color:var(--text-2);
  font-size:12px;transition:transform .24s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.faq-item[open] summary{color:var(--text-1)}
.faq-item[open] summary .sign{transform:rotate(135deg);color:var(--brand);border-color:rgba(255,90,45,.4)}
.faq-body{
  background:var(--bg-1);border-radius:var(--r-img);
  padding:18px 20px;margin:0 0 18px;
  font-size:15px;line-height:1.85;color:var(--text-2);
}

/* ============ CTA 横幅 ============ */
.cta-band{
  position:relative;overflow:hidden;margin-top:88px;
  background:var(--bg-1);border:1px solid rgba(62,216,200,.35);border-radius:18px;
  padding:44px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::before{
  content:"";position:absolute;top:-60%;left:-10%;width:60%;height:220%;
  background:linear-gradient(120deg,rgba(255,90,45,.16),rgba(255,90,45,0));
  transform:rotate(-14deg);pointer-events:none;
}
.cta-copy{position:relative;z-index:2}
.cta-copy h2{font-size:clamp(20px,2.2vw,28px);margin-bottom:10px}
.cta-copy p{color:var(--text-2);font-size:15px;max-width:620px}
.cta-actions{position:relative;z-index:2;display:flex;align-items:center;gap:16px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{margin-top:96px;border-top:1px solid var(--line);background:var(--bg-1)}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  padding:56px 32px 40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;margin-bottom:14px}
.footer-desc{color:var(--text-2);font-size:14px;line-height:1.8;max-width:320px}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text-1)}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li a,.footer-col li span{font-size:14px;color:var(--text-2)}
.footer-col li a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid var(--line)}
.footer-bottom .container{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:18px 32px;font-size:12px;color:var(--text-3);
}

/* ============ 移动端吸底 CTA ============ */
.mobile-cta{display:none}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  .container{max-width:1200px}
}
@media (max-width:1279px){
  :root{--side:72px}
  .sidebar .brand-text,
  .sidebar .nav-item span,
  .sidebar .side-search,
  .sidebar .side-foot{display:none}
  .sidebar .brand{justify-content:center;padding:0}
  .sidebar .nav-item{justify-content:center;padding:0}
  .sidebar .nav-item::before{height:20px}
  .side-divider{margin:12px 14px 0}
  .value-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .poster-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .content-area{margin-left:0}
  .container{padding:0 22px}
  .hero-inner{padding:34px 26px;max-width:100%}
  .hero-panel{min-height:56vh}
  .hero-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
  .value-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .poster-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split-row{grid-template-columns:1fr;gap:24px}
  .split-row.reverse .split-media{order:0}
  .feature-banner{min-height:300px}
  .fb-inner{padding:26px 24px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 26px;margin-top:64px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;padding:44px 22px 32px}
  .footer-bottom .container{padding:16px 22px}
  .section{padding-top:64px}
}
@media (max-width:767px){
  body{font-size:15px;padding-bottom:76px}
  h1{font-size:29px}
  .container{padding:0 18px}
  .breadcrumb{padding-top:20px}
  .hero-panel{min-height:420px;border-radius:16px}
  .hero-inner{padding:26px 20px}
  .hero-sub{font-size:15px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .hero-cta .btn-link{justify-content:center}
  .hero-stats{grid-template-columns:1fr 1fr;gap:12px}
  .value-grid{grid-template-columns:1fr}
  .poster-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .section{padding-top:56px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-band{margin-top:56px}
  .cta-actions{flex-direction:column;align-items:stretch;width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom .container{flex-direction:column;align-items:flex-start;gap:6px}
  .mobile-cta{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:80;
    height:64px;padding:0 16px;align-items:center;gap:12px;
    background:rgba(20,22,27,.96);backdrop-filter:blur(8px);border-top:1px solid var(--line);
  }
  .mobile-cta .btn{flex:1;height:44px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .hero-bg{transform:none}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --bg-0:#0B0C0F;
  --bg-1:#14161B;
  --bg-2:#1D2027;
  --bg-3:#262A33;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text-1:#F3F1EC;
  --text-2:#A2A5AE;
  --text-3:#6C7078;
  --brand:#FF5A2D;
  --brand-hi:#FF7A4D;
  --brand-2:#FFB020;
  --accent:#3ED8C8;
  --ok:#35C08A;
  --warn:#FFB020;
  --err:#F2544B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --r-input:10px;
  --shadow-1:0 8px 24px rgba(0,0,0,.35);
  --shadow-2:0 18px 48px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar-w:240px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"Noto Sans SC","Inter",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;line-height:1.28;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
::selection{background:rgba(255,90,45,.35);color:#fff}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}

/* ================= 布局骨架 ================= */
.layout{min-height:100vh}
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--bg-1);
  border-right:1px solid var(--line);
  padding:0 16px 16px;
  display:flex;
  flex-direction:column;
  z-index:60;
}
.page{margin-left:var(--sidebar-w);min-width:0}

/* ================= 品牌区 ================= */
.brand{display:flex;align-items:center;gap:10px;height:72px;padding:0 8px;flex:none}
.brand-mark{
  width:36px;height:36px;flex:none;border-radius:10px;
  display:grid;place-items:center;
  font-weight:900;font-size:17px;color:#0B0C0F;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 6px 18px rgba(255,90,45,.28);
}
.brand-mark.sm{width:28px;height:28px;border-radius:8px;font-size:14px;box-shadow:none}
.brand-text{font-weight:800;font-size:15.5px;letter-spacing:.01em;color:var(--text-1)}

/* ================= 侧栏导航 ================= */
.nav-main{display:flex;flex-direction:column;gap:4px;padding:6px 0}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:10px;
  color:var(--text-2);font-size:14.5px;font-weight:500;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.nav-item i{width:16px;text-align:center;font-size:14px;flex:none}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:0;height:20px;border-radius:0 2px 2px 0;background:var(--brand);
  transition:width .2s var(--ease);
}
.nav-item:hover{color:var(--text-1);background:var(--bg-2);transform:translateX(2px)}
.nav-item.is-active{background:var(--bg-2);color:var(--text-1);font-weight:700}
.nav-item.is-active::before{width:3px}
.nav-item.is-active i{color:var(--brand)}

.sidebar-divider{height:1px;background:var(--line);margin:12px 0 16px}

.nav-search{position:relative;padding:0 4px}
.nav-search input{
  width:100%;height:40px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  color:var(--text-1);
  padding:0 12px 0 34px;
  font-size:14px;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:hover{border-color:var(--line-strong)}
.nav-search input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(62,216,200,.2)}
.nav-search i{position:absolute;left:16px;top:12px;color:var(--text-3);font-size:13px;pointer-events:none}

.sidebar-foot{margin-top:auto;padding:16px 8px 0;font-size:12px;line-height:1.9;color:var(--text-3)}
.sidebar-foot strong{display:block;color:var(--text-2);font-weight:600}

/* ================= 移动端顶栏 ================= */
.topbar{
  display:none;
  position:sticky;top:0;z-index:50;
  height:60px;align-items:center;justify-content:space-between;
  padding:0 16px;
  background:rgba(11,12,15,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.topbar-actions{display:flex;align-items:center;gap:6px}
.icon-btn{
  width:40px;height:40px;border-radius:10px;
  display:grid;place-items:center;
  color:var(--text-2);font-size:16px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.icon-btn:hover,.icon-btn:focus-visible{background:var(--bg-2);color:var(--text-1)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s;
  z-index:55;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer-close{display:none}

/* ================= 通用按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;
  white-space:nowrap;
  transition:transform .2s var(--ease),filter .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.btn-primary{
  border-radius:999px;
  background:linear-gradient(135deg,var(--brand),var(--brand-hi));
  color:#0B0C0F;
  box-shadow:0 10px 26px rgba(255,90,45,.28);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{
  background:transparent;border:1px solid var(--line-strong);color:var(--text-1);
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;pointer-events:none}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-size:14px;font-weight:600;
}
.link-arrow i{transition:transform .2s var(--ease)}
.link-arrow:hover i{transform:translateX(4px)}

/* ================= 徽章 / 标签 ================= */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  height:24px;padding:0 9px;
  border-radius:var(--r-badge);
  font-size:12px;font-weight:600;line-height:1;
  background:rgba(255,90,45,.12);
  color:var(--brand);
  border:1px solid rgba(255,90,45,.22);
}
.badge-amber{background:rgba(255,176,32,.12);color:var(--brand-2);border-color:rgba(255,176,32,.24)}
.badge-accent{background:rgba(62,216,200,.12);color:var(--accent);border-color:rgba(62,216,200,.24)}
.badge-soft{background:var(--bg-2);color:var(--text-2);border-color:var(--line)}

/* ================= Hero ================= */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);min-height:min(76vh,660px);display:flex;align-items:flex-end}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;animation:kenburns 12s ease-out forwards}
@keyframes kenburns{from{transform:scale(1.02) translate3d(0,0,0)}to{transform:scale(1.09) translate3d(-1.2%,-1%,0)}}
.hero::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(to top,rgba(11,12,15,.94) 0%,rgba(11,12,15,.35) 45%,rgba(11,12,15,.75) 100%);
}
.hero-inner{position:relative;z-index:2;width:100%;padding:104px 0 52px}
.hero-content{max-width:720px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--text-2);
  padding:6px 12px;border-radius:999px;
  background:rgba(20,22,27,.72);
  border:1px solid var(--line);
  margin-bottom:20px;
}
.hero-eyebrow i{color:var(--accent);font-size:12px}
.hero h1{
  font-size:clamp(30px,4.2vw,52px);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.16;
  max-width:17ch;
  text-shadow:0 6px 30px rgba(0,0,0,.5);
}
.hero-sub{
  margin-top:16px;
  font-size:clamp(15px,1.4vw,18px);
  color:var(--text-2);
  max-width:52ch;
}
.hero-cta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:28px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:34px;padding:0 14px;
  border-radius:999px;
  background:var(--bg-2);
  border:1px solid var(--line);
  color:var(--text-2);
  font-size:13px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.chip:hover{color:var(--accent);border-color:rgba(62,216,200,.4)}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:40px;
  margin-top:40px;padding-top:26px;
  border-top:1px solid var(--line);
}
.hero-stat b{
  display:block;
  font-family:"Inter","Noto Sans SC",sans-serif;
  font-size:30px;font-weight:900;line-height:1.1;
  font-variant-numeric:tabular-nums;
  color:var(--text-1);
}
.hero-stat span{font-size:12px;color:var(--text-3);letter-spacing:.02em}

/* ================= 板块通用 ================= */
.section{padding:88px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:800;letter-spacing:-.01em}
.section-head p{margin-top:10px;font-size:14.5px;color:var(--text-2);max-width:60ch}
.section-kicker{font-size:12.5px;letter-spacing:.16em;color:var(--brand);font-weight:700;margin-bottom:12px;text-transform:uppercase}

/* ================= 筛选条 ================= */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;padding-top:36px}
.filter-btn{
  height:36px;padding:0 16px;border-radius:999px;
  background:var(--bg-2);border:1px solid var(--line);
  color:var(--text-2);font-size:13.5px;font-weight:500;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.filter-btn:hover{color:var(--text-1);border-color:var(--line-strong)}
.filter-btn.is-active{
  background:rgba(255,90,45,.12);
  border-color:rgba(255,90,45,.45);
  color:var(--brand);
  font-weight:700;
}

/* ================= 纵向列表 + 粘性侧栏 ================= */
.list-layout{
  display:grid;
  grid-template-columns:minmax(0,2fr) minmax(0,1fr);
  gap:32px;
  align-items:start;
  padding-top:28px;
}
.entry-list{display:flex;flex-direction:column}
.entry{
  display:grid;
  grid-template-columns:240px minmax(0,1fr);
  gap:24px;
  padding:24px;
  border-bottom:1px solid var(--line);
  transition:background .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.entry:first-child{border-radius:var(--r-card) var(--r-card) 0 0}
.entry:last-child{border-bottom:0;border-radius:0 0 var(--r-card) var(--r-card)}
.entry:hover{background:var(--bg-1);box-shadow:var(--shadow-1)}
.entry-thumb{
  position:relative;
  aspect-ratio:16/9;
  border-radius:var(--r-img);
  overflow:hidden;
  background:var(--bg-2);
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease)}
.entry:hover .entry-thumb img{transform:scale(1.04)}
.entry-thumb .badge{position:absolute;top:10px;left:10px;z-index:2;background:rgba(11,12,15,.78);backdrop-filter:blur(4px)}
.entry-body{min-width:0;display:flex;flex-direction:column;gap:10px}
.entry-body h3{font-size:19px;font-weight:700;transition:color .2s var(--ease)}
.entry:hover .entry-body h3{color:#fff}
.entry-body p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.entry-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12.5px;color:var(--text-3);font-variant-numeric:tabular-nums}
.entry-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3)}
.entry-foot{margin-top:auto;padding-top:4px}

.side-card{
  position:sticky;top:96px;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--shadow-1);
}
.side-card + .side-card{margin-top:20px;position:static}
.side-card h3{font-size:18px;font-weight:700}
.side-card > p{margin-top:10px;font-size:14px;color:var(--text-2)}
.tick-list{margin-top:18px}
.tick-list li{
  position:relative;
  padding-left:18px;
  margin-bottom:11px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.7;
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:10px;
  width:6px;height:6px;border-radius:2px;background:var(--accent);
}
.side-card .btn{width:100%;margin-top:20px}
.side-note{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);line-height:1.8;
}

/* ================= 流程步骤 ================= */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.step{
  position:relative;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 22px;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:rgba(62,216,200,.35);box-shadow:var(--shadow-2)}
.step-num{
  font-family:"Inter",sans-serif;
  font-size:34px;font-weight:900;line-height:1;
  color:transparent;
  -webkit-text-stroke:1px rgba(255,255,255,.28);
  margin-bottom:16px;letter-spacing:-.02em;
}
.step h3{font-size:17px;font-weight:700}
.step p{margin-top:10px;font-size:14px;color:var(--text-2)}

/* ================= 双栏信息块 ================= */
.info-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.info-card{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px;
}
.info-card h3{font-size:19px;font-weight:700;display:flex;align-items:center;gap:10px}
.info-card h3 i{color:var(--brand);font-size:16px}
.info-card > p{margin-top:12px;font-size:14.5px;color:var(--text-2)}
.info-list{margin-top:18px;display:flex;flex-direction:column;gap:14px}
.info-list li{display:flex;gap:12px;font-size:14.5px;color:var(--text-2);line-height:1.7}
.info-list li b{color:var(--text-1);font-weight:600;flex:none;min-width:78px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}

/* ================= FAQ ================= */
.faq-wrap{max-width:920px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:18px 4px;
  text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text-1);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--accent)}
.faq-q i{
  flex:none;color:var(--text-3);font-size:14px;
  transition:transform .24s var(--ease),color .24s var(--ease);
}
.faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--brand)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a-inner{
  background:var(--bg-1);
  border-radius:var(--r-img);
  padding:16px 18px;
  margin:0 0 18px;
  font-size:15px;line-height:1.85;color:var(--text-2);
}

/* ================= CTA 横条 ================= */
.cta-band{
  position:relative;overflow:hidden;
  margin-top:72px;
  background:var(--bg-1);
  border:1px solid rgba(62,216,200,.35);
  border-radius:var(--r-card);
  padding:34px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band::before{
  content:"";position:absolute;left:-8%;top:-140%;width:52%;height:340%;
  background:linear-gradient(90deg,transparent,rgba(255,90,45,.18),transparent);
  transform:rotate(18deg);
  pointer-events:none;
}
.cta-band h2{position:relative;font-size:clamp(20px,2.2vw,26px);font-weight:800}
.cta-band p{position:relative;margin-top:8px;font-size:14.5px;color:var(--text-2);max-width:56ch}
.cta-actions{position:relative;display:flex;align-items:center;gap:16px;flex:none}

/* ================= 页脚 ================= */
.site-footer{margin-top:96px;border-top:1px solid var(--line);background:var(--bg-0)}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1.1fr 1.3fr;
  gap:32px;
  padding:56px 0 44px;
}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:11px;font-size:13.5px;color:var(--text-2);line-height:1.7}
.footer-col ul li a{color:var(--text-2);transition:color .2s var(--ease)}
.footer-col ul li a:hover{color:var(--accent)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;font-weight:800;font-size:15.5px}
.footer-desc{font-size:13.5px;color:var(--text-3);line-height:1.85;max-width:36ch}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0}
.footer-bottom .container{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px}
.footer-bottom span{font-size:12px;color:var(--text-3)}

/* ================= 入场动效 ================= */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ================= 响应式 ================= */
@media (max-width:1439px){
  .container{max-width:1180px}
}
@media (max-width:1279px){
  .entry{grid-template-columns:200px minmax(0,1fr);gap:20px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step-num{font-size:30px}
}
@media (max-width:1023px){
  .sidebar{
    width:290px;
    padding-top:0;
    transform:translateX(-100%);
    transition:transform .3s var(--ease);
    box-shadow:none;
  }
  .sidebar.is-open{transform:translateX(0);box-shadow:0 18px 40px rgba(0,0,0,.6)}
  .drawer-close{display:grid}
  .page{margin-left:0}
  .topbar{display:flex}
  .hero{min-height:56vh}
  .hero-inner{padding:72px 0 44px}
  .hero-content{max-width:none}
  .list-layout{grid-template-columns:minmax(0,1fr)}
  .side-card{position:static}
  .info-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .section{padding-top:72px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .hero{min-height:auto}
  .hero-inner{padding:56px 0 36px}
  .hero h1{font-size:28px;max-width:none}
  .hero-cta{gap:10px}
  .hero-cta .btn{width:100%}
  .hero-cta .link-arrow{width:100%}
  .hero-stats{gap:24px;margin-top:30px}
  .hero-stat b{font-size:24px}
  .section{padding-top:56px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px}
  .entry{grid-template-columns:minmax(0,1fr);gap:16px;padding:18px}
  .entry-thumb{border-radius:var(--r-img)}
  .entry-body h3{font-size:17px}
  .steps{grid-template-columns:minmax(0,1fr)}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 22px}
  .cta-actions{width:100%;flex-direction:column;align-items:stretch;gap:12px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;padding:44px 0 32px}
  .footer-bottom .container{flex-direction:column;align-items:flex-start}
  .filter-bar{padding-top:26px}
}
@media (max-width:520px){
  .hero h1{font-size:25px}
  .brand-text{font-size:15px}
  .faq-q{font-size:15.5px}
  .side-card{padding:22px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}