/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root{
  --c-primary:#FF6A1F;
  --c-primary-hi:#FF8339;
  --c-primary-soft:rgba(255,106,31,.12);
  --c-accent:#35E0A1;
  --c-warm:#FFC53D;
  --bg:#0B0A12;
  --panel:#15131F;
  --panel-2:#1B1828;
  --footer-bg:#0A0912;
  --nav-bg:#100E1A;
  --text:#F2F1F7;
  --text-2:#B8B5C8;
  --text-weak:#8C89A0;
  --text-dim:#6E6B82;
  --paper:#FBFAF7;
  --err:#FF5C7A;
  --line:rgba(255,255,255,.07);
  --line-hi:rgba(255,106,31,.40);
  --r-poster:16px;
  --r-card:14px;
  --r-sm:12px;
  --r-btn:10px;
  --r-badge:6px;
  --t:220ms cubic-bezier(.22,.61,.36,1);
  --t-slow:400ms cubic-bezier(.22,.61,.36,1);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Oswald","Barlow Condensed","SFMono-Regular",Consolas,monospace;
}

/* ===================== Reset / Base ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  padding-left:232px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,ul,ol{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--t);}
a:hover,a:focus{color:inherit;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
input,textarea,select{font:inherit;color:inherit;}
section[id]{scroll-margin-top:88px;}
::selection{background:rgba(255,106,31,.35);color:#fff;}

/* 覆盖 Foundation 默认观感 */
body,html{background:var(--bg);}
a{color:inherit;}
a:hover{color:var(--c-primary);}
.button,button{background:none;border:0;padding:0;margin:0;}
[type=text],[type=email],[type=search],textarea{background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r-btn);color:var(--text);box-shadow:none;}
[type=text]:focus,[type=email]:focus,[type=search]:focus,textarea:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(255,106,31,.25);}

/* ===================== 容器 ===================== */
.container{
  width:100%;
  max-width:1320px;
  margin:0 auto;
  padding:0 32px;
}

/* ===================== 左侧竖向导航 ===================== */
.sidebar{
  position:fixed;top:0;left:0;
  width:232px;height:100vh;
  background:var(--nav-bg);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:22px 16px 24px;
  z-index:90;
}
.sidebar-head{
  display:flex;align-items:flex-start;justify-content:space-between;
  gap:8px;margin-bottom:26px;
}
.brand{
  display:flex;align-items:center;gap:10px;
  min-width:0;
}
.brand-mark{
  width:48px;height:48px;flex:0 0 48px;
  border-radius:12px;
  background:linear-gradient(140deg,#FF6A1F,#FFA55C);
  color:#180C03;
  font-size:21px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(255,106,31,.26);
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;min-width:0;}
.brand-text strong{
  font-size:13px;font-weight:700;line-height:1.35;
  letter-spacing:.01em;display:block;
}
.brand-text small{
  font-size:12px;color:var(--text-dim);line-height:1.5;margin-top:2px;
}
.drawer-close{
  display:none;width:40px;height:40px;flex:0 0 40px;
  border-radius:10px;border:1px solid var(--line);
  align-items:center;justify-content:center;
  color:var(--text-2);font-size:16px;
  transition:border-color var(--t),color var(--t);
}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary);}

.side-nav{display:flex;flex-direction:column;gap:4px;flex:1 1 auto;}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;
  border-radius:10px;
  font-size:15px;color:var(--text-weak);
  transition:background var(--t),color var(--t);
}
.nav-item i{width:18px;font-size:16px;text-align:center;color:var(--text-dim);transition:color var(--t);}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:2px;background:var(--c-primary);
  transition:height var(--t);
}
.nav-item:hover{background:rgba(255,106,31,.10);color:var(--text);}
.nav-item:hover i{color:var(--c-primary);}
.nav-item:hover::before{height:18px;}
.nav-item.is-active{background:rgba(255,106,31,.16);color:var(--c-primary);font-weight:600;}
.nav-item.is-active i{color:var(--c-primary);}
.nav-item.is-active::before{height:22px;}

.sidebar-foot{
  margin-top:auto;padding-top:20px;border-top:1px solid var(--line);
}
.sidebar-foot p{
  font-size:12px;color:var(--text-dim);line-height:1.65;margin-top:12px;
}

/* ===================== 移动端顶栏 ===================== */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:60px;
  align-items:center;justify-content:space-between;gap:12px;
  padding:0 16px;
  background:#100E1A;
  border-bottom:1px solid var(--line);
  z-index:80;
}
.topbar .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:16px;border-radius:10px;}
.topbar .brand strong{font-size:14px;font-weight:700;line-height:1.3;}
.menu-btn{
  width:44px;height:44px;flex:0 0 44px;
  border:1px solid var(--line);border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;color:var(--text-2);
  transition:border-color var(--t),color var(--t);
}
.menu-btn:hover{border-color:var(--c-primary);color:var(--c-primary);}

.drawer-overlay{
  position:fixed;inset:0;
  background:rgba(0,0,0,.6);
  opacity:0;visibility:hidden;
  transition:opacity var(--t),visibility var(--t);
  z-index:85;
}
.drawer-overlay.is-show{opacity:1;visibility:visible;}

/* ===================== 按钮 / 徽章 ===================== */
.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;line-height:1;
  border:1px solid transparent;
  white-space:nowrap;
  transition:transform var(--t),background var(--t),border-color var(--t),box-shadow var(--t),color var(--t);
}
.btn:focus-visible{outline:3px solid rgba(255,106,31,.45);outline-offset:2px;}
.btn-primary{background:var(--c-primary);color:#180C04;}
.btn-primary:hover{background:var(--c-primary-hi);color:#180C04;transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,106,31,.35);}
.btn-primary:active{transform:translateY(0);filter:brightness(.95);}
.btn-ghost{border-color:rgba(255,255,255,.22);color:var(--text);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);}
.btn-dark{background:#14121D;color:#F2F1F7;border-color:rgba(255,255,255,.16);}
.btn-dark:hover{background:#0B0A12;color:#fff;transform:translateY(-2px);}
.btn-block{width:100%;}
.btn[disabled]{opacity:.45;cursor:not-allowed;}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-badge);
  font-size:12px;font-weight:500;letter-spacing:.04em;line-height:1;
  white-space:nowrap;
}
.badge-cat{background:rgba(11,10,18,.72);border:1px solid rgba(255,255,255,.14);color:#DAD7E6;}
.badge-warm{background:var(--c-warm);color:#221703;}
.badge-hot{background:var(--c-primary);color:#180C04;}
.badge-outline{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:500;letter-spacing:.06em;line-height:1;
  padding:6px 12px;border-radius:var(--r-badge);
  color:var(--c-primary);
  border:1px solid var(--line-hi);
  background:var(--c-primary-soft);
}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-size:14px;font-weight:600;
}
.text-link:hover{color:var(--c-primary-hi);text-decoration:underline;text-underline-offset:3px;}

/* ===================== Hero ===================== */
.hero{position:relative;overflow:hidden;min-height:620px;}
.hero-media{position:absolute;inset:0;z-index:0;background:var(--panel-2);}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-shade{
  position:absolute;inset:0;z-index:1;
  background:
    linear-gradient(180deg,rgba(11,10,18,.62) 0%,rgba(11,10,18,.38) 38%,rgba(11,10,18,.94) 100%),
    linear-gradient(100deg,rgba(11,10,18,.96) 0%,rgba(11,10,18,.62) 46%,rgba(11,10,18,.22) 100%);
}
.hero-inner{position:relative;z-index:2;padding-top:112px;padding-bottom:44px;}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 220px;
  gap:48px;
  align-items:end;
}
.hero-copy{max-width:660px;}
.hero h1{
  font-size:46px;font-weight:800;line-height:1.18;letter-spacing:.01em;
  margin-top:20px;
  text-wrap:balance;
}
.hero-sub{
  font-size:17px;color:var(--text-2);line-height:1.8;
  margin-top:16px;max-width:560px;
}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap;}
.hero-poster{
  position:relative;
  width:220px;aspect-ratio:2/3;
  border-radius:var(--r-poster);overflow:hidden;
  border:1px solid var(--line-hi);
  justify-self:end;align-self:end;
  box-shadow:0 26px 60px rgba(0,0,0,.6),0 0 0 6px rgba(255,106,31,.06);
  background:var(--panel-2);
}
.hero-poster img{width:100%;height:100%;object-fit:cover;}
.poster-tag{
  position:absolute;left:12px;bottom:12px;
  font-size:12px;letter-spacing:.04em;
  padding:5px 10px;border-radius:var(--r-badge);
  background:rgba(11,10,18,.78);color:#E6E4EE;
}
.hero-stats{
  display:flex;gap:56px;flex-wrap:wrap;
  margin-top:56px;padding-top:24px;
  border-top:1px solid var(--line);
}
.hero-stats strong{
  display:block;
  font-family:var(--font-num);
  font-size:34px;font-weight:700;line-height:1.1;
  color:var(--c-accent);
  letter-spacing:.02em;
}
.hero-stats span{font-size:13px;color:var(--text-weak);}

/* ===================== 板块 ===================== */
.section{padding:92px 0;}
.section-band{background:linear-gradient(180deg,rgba(21,19,31,.85) 0%,rgba(11,10,18,.85) 100%);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;flex-wrap:wrap;
}
.section-head h2{
  position:relative;
  padding-left:16px;
  font-size:30px;font-weight:700;line-height:1.25;
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;
  width:4px;border-radius:2px;background:var(--c-primary);
}
.section-sub{
  font-size:14px;color:var(--text-weak);line-height:1.7;
  margin-top:10px;padding-left:16px;max-width:620px;
}

/* ===================== 横滑片库 ===================== */
.rail-wrap{position:relative;}
.rail{
  display:flex;gap:20px;
  overflow-x:auto;overflow-y:hidden;
  scroll-snap-type:x mandatory;
  padding:4px 4px 18px;
  scrollbar-width:thin;
  -webkit-overflow-scrolling:touch;
}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-track{background:rgba(255,255,255,.04);border-radius:3px;}
.rail::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:3px;}
.poster-card{
  position:relative;flex:0 0 260px;height:360px;
  border-radius:var(--r-poster);overflow:hidden;
  border:1px solid var(--line);
  scroll-snap-align:start;
  background:var(--panel-2);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.poster-card img{width:100%;height:100%;object-fit:cover;transition:transform var(--t-slow);}
.poster-card:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:0 12px 32px rgba(255,106,31,.18);}
.poster-card:hover img{transform:scale(1.06);}
.poster-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,10,18,.10) 0%,rgba(11,10,18,.36) 44%,rgba(11,10,18,.95) 100%);
}
.poster-cat{position:absolute;top:14px;left:14px;}
.poster-body{position:absolute;left:0;right:0;bottom:0;padding:18px;}
.poster-body h3{
  font-size:17px;font-weight:700;line-height:1.4;
  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:1.6;margin-top:8px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.rail-arrow{
  position:absolute;top:46%;transform:translateY(-50%);
  width:44px;height:44px;border-radius:50%;
  background:rgba(21,19,31,.94);
  border:1px solid var(--line);
  color:var(--text);
  display:flex;align-items:center;justify-content:center;
  z-index:5;
  transition:background var(--t),border-color var(--t),color var(--t);
}
.rail-arrow:hover{background:var(--panel-2);border-color:var(--c-primary);color:var(--c-primary);}
.rail-arrow:focus-visible{outline:3px solid rgba(255,106,31,.45);outline-offset:2px;}
.rail-prev{left:-16px;}
.rail-next{right:-16px;}

/* ===================== 榜单 / 重点区 ===================== */
.rank-grid{
  display:grid;
  grid-template-columns:58fr 42fr;
  gap:24px;
  align-items:start;
}
.feature-card{
  display:block;
  border:1px solid var(--line);
  border-radius:var(--r-poster);
  overflow:hidden;
  background:var(--panel);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.feature-card:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:0 12px 32px rgba(255,106,31,.16);}
.feature-media{aspect-ratio:16/10;overflow:hidden;background:var(--panel-2);}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t-slow);}
.feature-card:hover .feature-media img{transform:scale(1.06);}
.feature-body{padding:24px;}
.feature-body h3{font-size:22px;font-weight:700;line-height:1.45;margin-top:12px;}
.feature-body p{
  font-size:14px;color:var(--text-2);line-height:1.75;margin-top:10px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.feature-meta{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-dim);
}
.rank-list{display:flex;flex-direction:column;gap:6px;}
.rank-item{
  display:flex;align-items:center;gap:14px;
  min-height:72px;padding:12px 14px;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  transition:background var(--t),border-color var(--t);
}
.rank-item:hover{background:var(--panel-2);border-color:var(--line);}
.rank-no{
  flex:0 0 38px;width:38px;
  font-family:var(--font-num);
  font-size:26px;font-weight:700;line-height:1;
  color:var(--text-dim);
  transition:color var(--t);
}
.rank-item:hover .rank-no{color:var(--c-primary);}
.rank-thumb{
  flex:0 0 96px;width:96px;height:64px;
  border-radius:10px;overflow:hidden;
  background:var(--panel-2);
}
.rank-thumb img{width:100%;height:100%;object-fit:cover;}
.rank-body{min-width:0;flex:1 1 auto;}
.rank-body h3{
  font-size:15px;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.rank-meta{display:flex;align-items:center;gap:10px;margin-top:6px;font-size:12px;color:var(--text-dim);}
.rank-item:hover .rank-body h3{color:var(--c-primary);}

/* ===================== 分区图块 ===================== */
.tiles{
  display:grid;
  grid-template-columns:1.3fr 1fr 1fr;
  grid-auto-rows:minmax(182px,auto);
  gap:20px;
}
.tile{
  position:relative;
  display:flex;align-items:flex-end;
  padding:24px;
  border-radius:var(--r-poster);
  overflow:hidden;
  border:1px solid var(--line);
  min-height:182px;
  transition:border-color var(--t),box-shadow var(--t),transform var(--t);
}
.tile:hover{border-color:var(--line-hi);box-shadow:0 14px 34px rgba(255,106,31,.16);transform:translateY(-4px);}
.tile-1{grid-column:1;grid-row:1 / span 2;}
.tile-2{grid-column:2;grid-row:1;}
.tile-3{grid-column:3;grid-row:1;}
.tile-4{grid-column:2 / span 2;grid-row:2;}
.tile-bg{position:absolute;inset:0;z-index:0;background:var(--panel-2);}
.tile-bg img{width:100%;height:100%;object-fit:cover;transition:transform var(--t-slow);}
.tile:hover .tile-bg img{transform:scale(1.06);}
.tile-mask{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(11,10,18,.22) 0%,rgba(11,10,18,.62) 52%,rgba(11,10,18,.94) 100%);
}
.tile-body{position:relative;z-index:2;max-width:460px;}
.tile-body h3{font-size:21px;font-weight:700;line-height:1.4;}
.tile-1 .tile-body h3{font-size:24px;}
.tile-body p{font-size:13px;color:var(--text-2);line-height:1.7;margin-top:8px;}
.tile-go{
  position:absolute;top:20px;right:20px;z-index:2;
  width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(255,255,255,.2);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;color:var(--text-2);
  transition:border-color var(--t),color var(--t),background var(--t);
}
.tile:hover .tile-go{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}

/* ===================== 最新信息（CMS 区） ===================== */
.news-lead{
  display:grid;
  grid-template-columns:40% 1fr;
  gap:0;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--panel);
  transition:border-color var(--t),box-shadow var(--t);
}
.news-lead:hover{border-color:var(--line-hi);box-shadow:0 12px 32px rgba(255,106,31,.14);}
.news-lead-media{display:block;overflow:hidden;background:var(--panel-2);min-height:240px;}
.news-lead-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t-slow);}
.news-lead:hover .news-lead-media img{transform:scale(1.06);}
.news-lead-body{padding:26px 28px;display:flex;flex-direction:column;justify-content:center;}
.news-lead-body h3{font-size:22px;font-weight:700;line-height:1.45;margin-top:14px;}
.news-lead-body h3 a:hover{color:var(--c-primary);}
.news-lead-body p{
  font-size:14px;color:var(--text-2);line-height:1.8;margin-top:12px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-dim);
}
.news-list{display:flex;flex-direction:column;gap:10px;margin-top:20px;}
.news-row{
  position:relative;
  display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center;
  min-height:72px;padding:16px 20px;
  border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--panel);
  transition:background var(--t),border-color var(--t);
}
.news-row::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;
  width:2px;border-radius:2px;background:var(--c-primary);
  opacity:0;transition:opacity var(--t);
}
.news-row:hover{background:var(--panel-2);border-color:var(--line-hi);}
.news-row:hover::before{opacity:1;}
.news-row-main{min-width:0;}
.news-row-main h3{
  font-size:16px;font-weight:600;line-height:1.5;margin-top:8px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.news-row-main h3 a:hover{color:var(--c-primary);}
.news-row-main p{
  font-size:13px;color:var(--text-weak);line-height:1.65;margin-top:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-row-side{
  display:flex;flex-direction:column;align-items:flex-end;gap:8px;
  flex:0 0 auto;font-size:13px;color:var(--text-dim);
}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:64px 24px;
  border:1px dashed var(--line);border-radius:var(--r-card);
  background:rgba(21,19,31,.55);
  text-align:center;
}
.empty-state i{font-size:40px;color:var(--text-dim);}
.empty-state p{font-size:14px;color:var(--text-weak);}

/* ===================== 使用指引 ===================== */
.steps{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  position:relative;
}
.steps::before{
  content:"";position:absolute;top:56px;left:8%;right:8%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,106,31,.45),transparent);
  z-index:0;
}
.step{
  position:relative;z-index:1;
  padding:28px 24px 26px;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--panel);
  transition:border-color var(--t),transform var(--t);
}
.step:hover{border-color:var(--line-hi);transform:translateY(-4px);}
.step-no{
  font-family:var(--font-num);
  font-size:40px;font-weight:700;line-height:1;
  color:rgba(255,106,31,.42);
}
.step-icon{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:18px;margin-top:16px;
}
.step h3{font-size:19px;font-weight:700;line-height:1.45;margin-top:16px;}
.step p{font-size:14px;color:var(--text-2);line-height:1.8;margin-top:8px;}

/* ===================== FAQ ===================== */
.faq{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:10px;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--panel);
  overflow:hidden;
  transition:border-color var(--t);
}
.faq-item:hover{border-color:rgba(255,255,255,.14);}
.faq-item.is-open{border-color:var(--line-hi);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:18px 20px;
  text-align:left;font-size:16px;font-weight:600;line-height:1.6;
  color:var(--text);
  transition:color var(--t);
}
.faq-q:hover{color:var(--c-primary);}
.faq-q:focus-visible{outline:3px solid rgba(255,106,31,.45);outline-offset:-3px;}
.faq-icon{
  flex:0 0 24px;width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;color:var(--c-primary);
}
.faq-icon i{transition:transform 260ms cubic-bezier(.22,.61,.36,1);}
.faq-item.is-open .faq-icon i{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms cubic-bezier(.22,.61,.36,1);}
.faq-a-inner{
  padding:0 20px 20px;
  font-size:15px;color:var(--text-2);line-height:1.85;
}

/* ===================== CTA 横幅 ===================== */
.cta-band{position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.cta-bg{position:absolute;inset:0;z-index:0;background:var(--panel-2);}
.cta-bg img{width:100%;height:100%;object-fit:cover;}
.cta-overlay{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(135deg,rgba(255,106,31,.94) 0%,rgba(255,106,31,.66) 100%);
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;
  gap:32px;padding-top:64px;padding-bottom:64px;flex-wrap:wrap;
}
.cta-inner h2{font-size:30px;font-weight:800;line-height:1.3;color:#180C04;}
.cta-inner p{font-size:15px;line-height:1.8;color:rgba(24,12,4,.82);margin-top:10px;max-width:640px;}

/* ===================== 页脚 ===================== */
.site-footer{
  background:var(--footer-bg);
  border-top:1px solid var(--line);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:13px;color:var(--text-weak);line-height:1.85;max-width:340px;}
.footer-col h4{
  font-size:14px;font-weight:700;color:var(--c-primary);
  letter-spacing:.02em;margin-bottom:16px;
}
.footer-col li{margin-bottom:10px;}
.footer-col a,.footer-col span{
  font-size:14px;color:var(--text-weak);line-height:1.7;
  transition:color var(--t),transform var(--t);
  display:inline-block;
}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0 28px;border-top:1px solid var(--line);
  font-size:12px;color:var(--text-dim);flex-wrap:wrap;
}

/* ===================== 响应式 ===================== */
@media (max-width:1439px) and (min-width:1200px){
  .hero h1{font-size:42px;}
}

@media (min-width:992px) and (max-width:1199px){
  body{padding-left:88px;}
  .sidebar{width:88px;padding:20px 12px;}
  .brand{justify-content:center;}
  .brand-text{display:none;}
  .side-nav{align-items:center;}
  .nav-item{justify-content:center;padding:0;width:48px;height:48px;}
  .nav-item span{display:none;}
  .nav-item::before{display:none;}
  .sidebar-foot .btn{padding:0;width:48px;height:48px;}
  .sidebar-foot .btn span{display:none;}
  .sidebar-foot p{display:none;}
  .hero-grid{grid-template-columns:minmax(0,1fr) 180px;gap:32px;}
  .hero h1{font-size:38px;}
  .rank-grid{grid-template-columns:1fr;}
}

@media (max-width:991px){
  body{padding-left:0;padding-top:60px;}
  .topbar{display:flex;}
  .sidebar{
    width:82vw;max-width:320px;
    transform:translateX(-100%);
    transition:transform 260ms cubic-bezier(.22,.61,.36,1);
    box-shadow:0 0 44px rgba(0,0,0,.6);
    padding-top:24px;
  }
  .sidebar.is-open{transform:translateX(0);}
  .drawer-close{display:flex;}
  .brand-text strong{font-size:14px;}
  .section{padding:72px 0;}
  .section-head h2{font-size:24px;}
  .hero{min-height:auto;}
  .hero-inner{padding-top:64px;padding-bottom:36px;}
  .hero-grid{grid-template-columns:1fr;gap:28px;align-items:start;}
  .hero h1{font-size:30px;margin-top:16px;}
  .hero-sub{font-size:16px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .hero-poster{width:150px;justify-self:start;align-self:start;}
  .hero-stats{gap:32px;margin-top:36px;}
  .hero-stats strong{font-size:28px;}
  .rail-arrow{display:none;}
  .rank-grid{grid-template-columns:1fr;gap:20px;}
  .tiles{grid-template-columns:1fr 1fr;}
  .tile-1{grid-column:1 / span 2;grid-row:auto;}
  .tile-2{grid-column:1;grid-row:auto;}
  .tile-3{grid-column:2;grid-row:auto;}
  .tile-4{grid-column:1 / span 2;grid-row:auto;}
  .news-lead{grid-template-columns:1fr;}
  .news-lead-media{min-height:200px;aspect-ratio:16/10;}
  .steps{grid-template-columns:1fr;gap:16px;}
  .steps::before{display:none;}
  .cta-inner{padding-top:48px;padding-bottom:48px;}
  .cta-inner h2{font-size:24px;}
  .cta-inner .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .container{padding:0 20px;}
}

@media (max-width:767px){
  .section{padding:56px 0;}
  .section-head{margin-bottom:24px;}
  .section-head h2{font-size:22px;}
  .section-sub{font-size:13px;}
  .poster-card{flex:0 0 62vw;height:290px;}
  .poster-body h3{font-size:16px;}
  .feature-body{padding:18px;}
  .feature-body h3{font-size:19px;}
  .rank-item{gap:10px;padding:10px 10px;}
  .rank-thumb{flex:0 0 80px;width:80px;height:60px;}
  .rank-no{flex:0 0 30px;width:30px;font-size:22px;}
  .tiles{grid-template-columns:1fr;}
  .tile-1,.tile-2,.tile-3,.tile-4{grid-column:1 / span 1;grid-row:auto;}
  .tile{padding:20px;min-height:160px;}
  .news-lead-body{padding:20px;}
  .news-lead-body h3{font-size:19px;}
  .news-row{grid-template-columns:1fr;gap:10px;}
  .news-row-side{flex-direction:row;align-items:center;justify-content:space-between;width:100%;}
  .faq-q{font-size:15px;padding:16px;}
  .faq-a-inner{padding:0 16px 18px;font-size:14.5px;}
  .hero-stats{gap:24px;}
}

@media (max-width:575px){
  .container{padding:0 16px;}
  .hero h1{font-size:26px;}
  .hero-sub{font-size:15px;}
  .hero-stats strong{font-size:24px;}
  .hero-stats li{flex:0 0 calc(50% - 12px);}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .section-head h2{font-size:20px;}
  .cta-inner h2{font-size:21px;}
}

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

/* roulang page: category1 */
:root{
  --c-primary:#FF6A1F;
  --c-primary-hi:#FF8339;
  --c-primary-soft:rgba(255,106,31,.12);
  --c-primary-line:rgba(255,106,31,.40);
  --c-accent:#35E0A1;
  --c-warm:#FFC53D;
  --c-error:#FF5C7A;
  --bg-page:#0B0A12;
  --bg-panel:#15131F;
  --bg-panel-2:#1B1828;
  --bg-side:#100E1A;
  --bg-footer:#0A0912;
  --paper:#FBFAF7;
  --paper-text:#1B1A22;
  --paper-text-2:#5A5766;
  --c-text:#F2F1F7;
  --c-text-2:#B8B5C8;
  --c-text-weak:#8C89A0;
  --c-text-faint:#6E6B82;
  --line:rgba(255,255,255,.07);
  --r-poster:16px;
  --r-card:14px;
  --r-sub:12px;
  --r-btn:10px;
  --r-badge:6px;
  --shadow-card:0 1px 2px rgba(0,0,0,.4);
  --shadow-hover:0 12px 32px rgba(255,106,31,.18);
  --tr:220ms cubic-bezier(.22,.61,.36,1);
  --nav-w:232px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--c-text);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--tr),border-color var(--tr),background-color var(--tr)}
a:hover{color:var(--c-primary)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{line-height:1.25;font-weight:700}
:focus-visible{outline:3px solid rgba(255,106,31,.45);outline-offset:2px}
::selection{background:var(--c-primary);color:#0B0A12}

.app-shell{display:flex;min-height:100vh;align-items:stretch}
.content-area{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}
main{flex:1 1 auto}
.container{width:100%;max-width:1320px;margin:0 auto;padding:0 32px}

/* ---------- 侧栏导航 ---------- */
.sidebar{
  width:var(--nav-w);
  flex:0 0 var(--nav-w);
  background:var(--bg-side);
  border-right:1px solid var(--line);
  position:sticky;
  top:0;
  height:100vh;
  display:flex;
  flex-direction:column;
  padding:24px 16px 20px;
  z-index:60;
}
.sidebar-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:28px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:48px;height:48px;flex:0 0 48px;
  border-radius:12px;
  background:linear-gradient(140deg,var(--c-primary),#FF9A4D);
  color:#150E07;font-weight:800;font-size:22px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-text strong{font-size:15px;font-weight:700;color:var(--c-text);line-height:1.35}
.brand-text small{font-size:12px;color:var(--c-text-faint);line-height:1.5}
.drawer-close{display:none;width:44px;height:44px;border-radius:var(--r-btn);color:var(--c-text-2);font-size:18px}
.drawer-close:hover{color:var(--c-primary);background:var(--c-primary-soft)}

.side-nav{display:flex;flex-direction:column;gap:4px;flex:1 1 auto;overflow-y:auto}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:12px;
  min-height:44px;padding:0 12px;
  border-radius:var(--r-btn);
  color:var(--c-text-weak);
  font-size:15px;
}
.nav-item i{font-size:17px;width:20px;text-align:center;flex:0 0 20px}
.nav-item span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-item:hover{background:rgba(255,106,31,.10);color:var(--c-text)}
.nav-item:hover::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-primary);
}
.nav-item.is-active{background:rgba(255,106,31,.16);color:var(--c-primary);font-weight:600}
.nav-item.is-active i{color:var(--c-primary)}

.sidebar-foot{margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}
.sidebar-foot p{font-size:12px;color:var(--c-text-faint);margin-top:10px;line-height:1.6}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;
  border:1px solid transparent;
  transition:transform var(--tr),background-color var(--tr),border-color var(--tr),color var(--tr),box-shadow var(--tr),opacity var(--tr);
  text-align:center;
}
.btn-primary{background:var(--c-primary);color:#150E07}
.btn-primary:hover{background:var(--c-primary-hi);color:#150E07;transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,106,31,.35)}
.btn-primary:active{transform:translateY(0);filter:brightness(.95)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.22);color:var(--c-text)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0);filter:brightness(.95)}
.btn-block{width:100%}
.btn[aria-disabled="true"],.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.text-link{color:var(--c-primary);font-weight:600;text-underline-offset:3px}
.text-link:hover{text-decoration:underline;text-underline-offset:3px}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:var(--r-badge);
  font-size:12px;font-weight:500;letter-spacing:.04em;
  background:rgba(255,255,255,.08);color:var(--c-text-2);
  white-space:nowrap;
}
.badge-hot{background:var(--c-primary);color:#150E07;font-weight:700}
.badge-new{background:var(--c-warm);color:#231A02;font-weight:700}
.badge-line{background:transparent;border:1px solid var(--c-primary-line);color:var(--c-primary)}

/* ---------- 移动端顶栏 ---------- */
.mobile-topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:70;
  background:rgba(16,14,26,.96);border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;padding:0 16px;
}
.mobile-topbar .brand-mark{width:38px;height:38px;flex:0 0 38px;font-size:18px;border-radius:10px}
.mobile-topbar .brand-text strong{font-size:14px}
.mobile-topbar .brand-text small{display:none}
.hamburger{width:44px;height:44px;border-radius:var(--r-btn);color:var(--c-text);font-size:19px;display:flex;align-items:center;justify-content:center}
.hamburger:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.drawer-overlay{
  display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:65;
  opacity:0;transition:opacity var(--tr);
}
.drawer-overlay.is-visible{display:block;opacity:1}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--c-text-weak);padding:24px 0 0;
}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{color:var(--c-text-faint)}
.crumbs .current{color:var(--c-text-2);max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 分类页 Hero ---------- */
.page-hero{
  position:relative;margin-top:20px;border-radius:20px;overflow:hidden;
  background-image:linear-gradient(90deg,rgba(11,10,18,.94) 0%,rgba(11,10,18,.78) 48%,rgba(11,10,18,.62) 100%),url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
  border:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.035) 0 2px,transparent 2px 9px);
  opacity:.7;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1fr) 220px;
  gap:48px;align-items:center;
  padding:44px 48px;min-height:360px;
}
.hero-copy{max-width:640px}
.hero-copy .badge{margin-bottom:16px}
.page-hero h1{
  font-size:44px;font-weight:800;line-height:1.18;letter-spacing:.01em;
  color:#fff;
}
.page-hero h1 em{font-style:normal;color:var(--c-primary)}
.hero-sub{margin-top:16px;font-size:16px;color:var(--c-text-2);max-width:520px}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-poster{
  width:220px;aspect-ratio:2/3;border-radius:var(--r-poster);overflow:hidden;
  border:1px solid var(--c-primary-line);
  box-shadow:0 18px 44px rgba(0,0,0,.6);
  background:var(--bg-panel);
}
.hero-poster img{width:100%;height:100%;object-fit:cover}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head h2{
  position:relative;font-size:30px;font-weight:700;color:var(--c-text);
  padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--c-primary);
}
.section-head .lead{font-size:15px;color:var(--c-text-weak);margin-top:8px;padding-left:16px;max-width:640px}

/* ---------- 图文双列 ---------- */
.media-row{
  display:grid;grid-template-columns:42% minmax(0,1fr);
  gap:40px;align-items:center;
  background:var(--bg-panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;margin-bottom:24px;
  transition:border-color var(--tr),box-shadow var(--tr),transform var(--tr);
}
.media-row:hover{border-color:var(--c-primary-line);box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.media-row.reverse{grid-template-columns:minmax(0,1fr) 42%}
.media-row.reverse .media-figure{order:2}
.media-row.reverse .media-body{order:1}
.media-figure{border-radius:var(--r-sub);overflow:hidden;background:var(--bg-panel-2);aspect-ratio:16/10;border:1px solid var(--line)}
.media-figure img{width:100%;height:100%;object-fit:cover;transition:transform 400ms cubic-bezier(.22,.61,.36,1)}
.media-row:hover .media-figure img{transform:scale(1.06)}
.media-body h3{font-size:22px;font-weight:600;color:var(--c-text);margin-bottom:12px}
.media-body p{font-size:16px;color:var(--c-text-2);margin-bottom:12px}
.media-body p:last-of-type{margin-bottom:0}
.media-body .badge{margin-bottom:12px}

/* ---------- 编号要点卡 ---------- */
.point-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.point-card{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--bg-panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;
  transition:border-color var(--tr),background-color var(--tr),transform var(--tr);
}
.point-card:hover{border-color:var(--c-primary-line);background:var(--bg-panel-2);transform:translateY(-4px)}
.point-num{
  font-family:"Oswald","Barlow Condensed","Arial Narrow",monospace;
  font-size:28px;font-weight:700;line-height:1;color:var(--c-primary);
  flex:0 0 auto;letter-spacing:.02em;
}
.point-card h3{font-size:17px;font-weight:600;color:var(--c-text);margin-bottom:6px}
.point-card p{font-size:14px;color:var(--c-text-weak);line-height:1.7}

/* ---------- 入口速查列表 ---------- */
.entry-list{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--bg-panel)}
.entry-row{
  display:grid;grid-template-columns:110px minmax(0,1fr) 130px 100px;
  gap:20px;align-items:center;
  min-height:72px;padding:16px 22px;
  border-bottom:1px solid var(--line);
  transition:background-color var(--tr);
  position:relative;
}
.entry-row:last-child{border-bottom:0}
.entry-row:hover{background:var(--bg-panel-2)}
.entry-row:hover::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--c-primary)}
.entry-row h3{font-size:16px;font-weight:600;color:var(--c-text);margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.entry-row p{font-size:14px;color:var(--c-text-weak);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.entry-time{font-size:14px;color:var(--c-text-weak);text-align:right}
.entry-link{font-size:14px;text-align:right;color:var(--c-primary);font-weight:600}
.entry-link:hover{text-decoration:underline;text-underline-offset:3px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-sub);
  background:var(--bg-panel);margin-bottom:12px;overflow:hidden;
  transition:border-color var(--tr);
}
.faq-item[open]{border-color:var(--c-primary-line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;cursor:pointer;list-style:none;
  font-size:17px;font-weight:600;color:var(--c-text);
  transition:color var(--tr);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-icon{
  flex:0 0 24px;width:24px;height:24px;border-radius:50%;
  border:1px solid var(--line);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;transition:transform 260ms cubic-bezier(.22,.61,.36,1),border-color var(--tr);
}
.faq-item[open] .faq-icon{transform:rotate(45deg);border-color:var(--c-primary-line)}
.faq-body{padding:0 22px 22px;font-size:15px;color:var(--c-text-2);line-height:1.85}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  margin-top:88px;border-radius:var(--r-poster);overflow:hidden;position:relative;
  background-image:linear-gradient(135deg,rgba(255,106,31,.92),rgba(255,106,31,.62)),url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  min-height:240px;display:flex;align-items:center;
}
.cta-inner{
  width:100%;padding:40px 48px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
}
.cta-inner h2{font-size:28px;font-weight:800;color:#150E07;max-width:620px}
.cta-inner p{margin-top:10px;font-size:15px;color:rgba(21,14,7,.82);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-band .btn-primary{background:#150E07;color:#FFD9C2}
.cta-band .btn-primary:hover{background:#241609;color:#FFD9C2;box-shadow:0 10px 24px rgba(0,0,0,.35)}
.cta-band .btn-ghost{border-color:rgba(21,14,7,.42);color:#150E07}
.cta-band .btn-ghost:hover{border-color:#150E07;color:#150E07}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;background:var(--bg-footer);border-top:1px solid var(--line);
  padding:64px 0 24px;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid var(--line);
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--c-text-weak);line-height:1.8;max-width:320px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--c-primary);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--c-text-weak);display:inline-block;transition:color var(--tr),transform var(--tr)}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding-top:20px;font-size:12px;color:var(--c-text-faint);
}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  .hero-inner{padding:40px;gap:36px}
}
@media (max-width:1199px){
  :root{--nav-w:88px}
  .sidebar{padding:20px 12px}
  .brand-text{display:none}
  .brand-mark{margin:0 auto}
  .sidebar-head{justify-content:center}
  .nav-item{justify-content:center;padding:0}
  .nav-item span{display:none}
  .sidebar-foot .side-cta span{display:none}
  .sidebar-foot p{display:none}
  .page-hero h1{font-size:38px}
}
@media (max-width:991px){
  .app-shell{display:block}
  .mobile-topbar{display:flex}
  .sidebar{
    position:fixed;top:0;left:0;bottom:0;height:100%;
    width:82vw;max-width:320px;flex:none;
    transform:translateX(-102%);
    transition:transform 260ms cubic-bezier(.22,.61,.36,1);
    border-right:1px solid var(--line);
    padding:20px 16px;
  }
  .sidebar.is-open{transform:translateX(0)}
  .sidebar-head{justify-content:space-between}
  .brand-text{display:flex}
  .brand-mark{margin:0}
  .nav-item{justify-content:flex-start;padding:0 12px}
  .nav-item span{display:inline}
  .sidebar-foot .side-cta span{display:inline}
  .sidebar-foot p{display:block}
  .drawer-close{display:flex;align-items:center;justify-content:center}
  .content-area{padding-top:60px}
  .container{padding:0 20px}
  .crumbs{padding-top:20px}
  .hero-inner{grid-template-columns:minmax(0,1fr);gap:28px;padding:28px;min-height:300px}
  .hero-poster{width:160px}
  .page-hero h1{font-size:31px}
  .section{padding-top:72px}
  .section-head h2{font-size:25px}
  .media-row,.media-row.reverse{grid-template-columns:minmax(0,1fr);gap:24px}
  .media-row.reverse .media-figure{order:0}
  .media-row.reverse .media-body{order:0}
  .point-grid{grid-template-columns:minmax(0,1fr)}
  .entry-row{grid-template-columns:minmax(0,1fr) 110px;gap:12px}
  .entry-row .entry-cat{grid-column:1 / -1}
  .entry-time{text-align:left}
  .entry-link{text-align:left}
  .cta-inner{padding:32px 28px}
  .cta-inner h2{font-size:24px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:575px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .page-hero h1{font-size:27px}
  .hero-sub{font-size:15px}
  .hero-inner{padding:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .section{padding-top:56px}
  .section-head h2{font-size:22px}
  .media-row{padding:16px}
  .point-card{padding:18px}
  .entry-row{padding:14px 16px;grid-template-columns:minmax(0,1fr)}
  .entry-link{text-align:left}
  .faq-item summary{font-size:15.5px;padding:16px}
  .faq-body{padding:0 16px 18px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .site-footer{margin-top:64px;padding-top:48px}
  .site-footer .brand-text{display:flex}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
  .media-row:hover,.point-card:hover{transform:none}
  .media-row:hover .media-figure img{transform:none}
}

/* roulang page: category2 */
:root{
  --c-primary:#FF6A1F;
  --c-primary-hi:#FF8339;
  --c-primary-soft:rgba(255,106,31,.12);
  --c-accent:#35E0A1;
  --c-warm:#FFC53D;
  --bg:#0B0A12;
  --panel:#15131F;
  --panel-2:#1B1828;
  --footer-bg:#0A0912;
  --nav-bg:#100E1A;
  --text:#F2F1F7;
  --text-2:#B8B5C8;
  --text-weak:#8C89A0;
  --text-faint:#6E6B82;
  --paper:#FBFAF7;
  --paper-text:#1B1A22;
  --paper-2:#5A5766;
  --line:rgba(255,255,255,.07);
  --line-hi:rgba(255,106,31,.40);
  --danger:#FF5C7A;
  --r-poster:16px;
  --r-card:14px;
  --r-sm:12px;
  --r-btn:10px;
  --r-badge:6px;
  --nav-w:232px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:72px 72px;
  opacity:.55;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--text)}
p{margin:0}
.container{width:100%;max-width:1320px;margin:0 auto;padding-left:32px;padding-right:32px}

/* ---------- 左侧导航 ---------- */
.sidebar{
  position:fixed;
  top:0;
  left:0;
  bottom:0;
  width:var(--nav-w);
  background:var(--nav-bg);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:24px 16px;
  z-index:100;
}
.sidebar-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.brand{display:flex;align-items:center;gap:12px;padding:6px;border-radius:var(--r-sm);transition:background 220ms var(--ease)}
.brand:hover{background:rgba(255,255,255,.04)}
.brand-mark{
  width:48px;height:48px;flex:0 0 48px;
  border-radius:12px;
  background:linear-gradient(135deg,var(--c-primary),#FF9A4D);
  color:#20120A;
  font-size:22px;font-weight:800;
  display:grid;place-items:center;
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.3;min-width:0}
.brand-text strong{font-size:15px;font-weight:700;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-text small{font-size:12px;color:var(--text-faint);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.drawer-close{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:transparent;
  color:var(--text-2);
  font-size:18px;
  cursor:pointer;
  place-items:center;
}
.drawer-close:hover{color:var(--c-primary);border-color:var(--line-hi)}
.side-nav{display:flex;flex-direction:column;gap:4px;margin-top:28px;flex:1;min-height:0;overflow-y:auto}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:12px;
  min-height:44px;padding:0 12px;
  border-radius:var(--r-sm);
  color:var(--text-2);
  font-size:15px;
  transition:background 220ms var(--ease),color 220ms var(--ease);
}
.nav-item i{width:18px;font-size:16px;color:var(--text-faint);transition:color 220ms var(--ease)}
.nav-item::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:2px;
  background:var(--c-primary);opacity:0;transition:opacity 220ms var(--ease);
}
.nav-item:hover{background:rgba(255,106,31,.10);color:var(--text)}
.nav-item:hover i{color:var(--c-primary)}
.nav-item:hover::before{opacity:1}
.nav-item.is-active{background:rgba(255,106,31,.16);color:var(--c-primary);font-weight:600}
.nav-item.is-active i{color:var(--c-primary)}
.nav-item.is-active::before{opacity:1}
.sidebar-foot{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.sidebar-foot p{font-size:12px;color:var(--text-faint);line-height:1.6}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:background 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease),transform 220ms var(--ease),box-shadow 220ms var(--ease);
}
.btn i{font-size:14px}
.btn-primary{background:var(--c-primary);color:#1A0C04}
.btn-primary:hover{background:var(--c-primary-hi);transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,106,31,.35)}
.btn-primary:active{transform:translateY(0);filter:brightness(.95)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.22);color:var(--text)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(255,106,31,.45);outline-offset:2px;border-radius:6px}

/* ---------- 移动端顶栏 ---------- */
.mobile-bar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:60px;
  background:rgba(16,14,26,.96);
  border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;
  padding:0 14px;
  z-index:110;
}
.mobile-bar .brand-mark{width:40px;height:40px;flex:0 0 40px;font-size:18px;border-radius:10px}
.mobile-bar .brand-text strong{font-size:13.5px}
.mobile-bar .brand-text small{font-size:11px}
.menu-toggle{
  width:44px;height:44px;
  display:grid;place-items:center;
  background:transparent;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  color:var(--text-2);
  font-size:18px;
  cursor:pointer;
}
.menu-toggle:hover{color:var(--c-primary);border-color:var(--line-hi)}
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(0,0,0,.6);
  opacity:0;visibility:hidden;
  transition:opacity 260ms var(--ease),visibility 260ms var(--ease);
  z-index:120;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ---------- 主体 ---------- */
.main{
  position:relative;
  margin-left:var(--nav-w);
  z-index:1;
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

/* ---------- 分类页2 Hero ---------- */
.cat-hero{
  position:relative;
  overflow:hidden;
  background:#0A0912;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  min-height:330px;
}
.cat-hero-bg{
  position:absolute;inset:0;
  background-size:cover;
  background-position:center;
  opacity:.6;
  transform:scale(1.02);
}
.cat-hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,10,18,.72) 0%,rgba(11,10,18,.9) 58%,var(--bg) 100%);
  z-index:1;
}
.cat-hero::after{
  content:"";
  position:absolute;inset:0;
  z-index:1;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.035) 0 2px,transparent 2px 9px);
  opacity:.7;
  pointer-events:none;
}
.cat-hero-body{position:relative;z-index:2;padding-top:52px;padding-bottom:34px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-weak);flex-wrap:wrap}
.breadcrumb a{color:var(--text-weak);transition:color 200ms var(--ease)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--text-faint)}
.breadcrumb .current{color:var(--text-2);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cat-hero h1{
  font-size:44px;
  font-weight:800;
  line-height:1.18;
  letter-spacing:.01em;
  margin:18px 0 14px;
  max-width:900px;
}
.hero-sub{font-size:16px;color:var(--text-2);max-width:680px;line-height:1.8}
.hero-bar{
  position:relative;z-index:2;
  background:rgba(21,19,31,.94);
  border-top:1px solid var(--line);
}
.hero-bar-inner{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
  padding-top:18px;
  padding-bottom:18px;
}
.hero-bar-item{display:flex;flex-direction:column;gap:4px;min-width:0}
.hb-label{font-size:12px;letter-spacing:.04em;color:var(--text-faint)}
.hero-bar-item strong{
  font-size:15px;font-weight:600;color:var(--text);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.hero-bar-item strong .num{
  font-family:"Oswald","Barlow Condensed","DIN Alternate",monospace;
  color:var(--c-accent);
  font-size:18px;
  letter-spacing:.02em;
}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0}
.section-alt{background:linear-gradient(180deg,rgba(21,19,31,0) 0%,rgba(21,19,31,.75) 18%,rgba(21,19,31,.75) 82%,rgba(21,19,31,0) 100%)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.sec-title{position:relative;font-size:30px;font-weight:700;line-height:1.25;padding-left:16px}
.sec-title::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:2px;background:var(--c-primary);
}
.sec-desc{font-size:14px;color:var(--text-weak);margin-top:10px;padding-left:16px;max-width:760px;line-height:1.8}
.sec-head .sec-title{flex:1 1 320px}

/* ---------- 步骤卡 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 22px;
  display:flex;flex-direction:column;gap:12px;
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.step-card:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:0 12px 32px rgba(255,106,31,.18)}
.step-num{
  font-family:"Oswald","Barlow Condensed","DIN Alternate",monospace;
  font-size:34px;font-weight:700;line-height:1;
  color:var(--c-primary);letter-spacing:.02em;
}
.step-card h3{font-size:19px;font-weight:600}
.step-card p{font-size:14px;color:var(--text-weak);line-height:1.8}

/* ---------- 错落图文 ---------- */
.feature-grid{display:grid;grid-template-columns:1.45fr 1fr;grid-template-rows:auto auto;gap:20px}
.feature-main{
  grid-row:1 / span 2;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-poster);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.feature-main:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:0 12px 32px rgba(255,106,31,.18)}
.feature-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--panel-2)}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.feature-main:hover .feature-media img{transform:scale(1.06)}
.feature-media .badge{position:absolute;top:14px;left:14px}
.feature-body{padding:26px;display:flex;flex-direction:column;gap:12px}
.feature-body h3{font-size:22px;font-weight:600}
.feature-body p{font-size:15px;color:var(--text-weak);line-height:1.85}
.feature-list{display:flex;flex-direction:column;gap:8px;margin-top:4px}
.feature-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7}
.feature-list li i{color:var(--c-accent);font-size:13px;margin-top:6px;flex:0 0 auto}
.mini-card{
  background:var(--panel-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px;
  display:flex;gap:16px;align-items:flex-start;
  transition:transform 220ms var(--ease),border-color 220ms var(--ease);
}
.mini-card:hover{transform:translateY(-4px);border-color:var(--line-hi)}
.mini-icon{
  flex:0 0 44px;width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:18px;
}
.mini-card h3{font-size:17px;font-weight:600;margin-bottom:6px}
.mini-card p{font-size:14px;color:var(--text-weak);line-height:1.8}

/* ---------- 对照表 ---------- */
.table-wrap{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--panel);
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}
table.cmp{width:100%;border-collapse:collapse;min-width:620px}
table.cmp caption{
  caption-side:top;text-align:left;
  padding:18px 20px 0;
  font-size:13px;color:var(--text-faint);letter-spacing:.04em;
}
table.cmp th{
  text-align:left;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--text-2);
  background:rgba(255,255,255,.04);
  padding:16px 20px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
table.cmp td{
  padding:16px 20px;
  font-size:15px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
  vertical-align:top;
}
table.cmp tbody tr:last-child td{border-bottom:0}
table.cmp tbody tr{transition:background 200ms var(--ease)}
table.cmp tbody tr:hover td{background:var(--panel-2)}
table.cmp td:first-child{color:var(--text);font-weight:600;width:36%}
.table-note{margin-top:14px;font-size:13px;color:var(--text-faint)}

/* ---------- 相关入口卡片 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:0 12px 32px rgba(255,106,31,.18)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--panel-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.card:hover .card-media img{transform:scale(1.06)}
.card-media .badge{position:absolute;top:12px;left:12px}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:19px;font-weight:600;line-height:1.4}
.card-body p{font-size:14px;color:var(--text-weak);line-height:1.8;flex:1}
.card-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--c-primary);transition:gap 220ms var(--ease)}
.card-link i{font-size:13px;transition:transform 220ms var(--ease)}
.card:hover .card-link i{transform:translateX(3px)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;height:22px;padding:0 8px;
  border-radius:var(--r-badge);
  font-size:12px;font-weight:500;letter-spacing:.04em;
  background:rgba(255,255,255,.08);
  color:var(--text-2);
  white-space:nowrap;
}
.badge--new{background:var(--c-warm);color:#1A1405}
.badge--hot{background:var(--c-primary);color:#1A0C04}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color 220ms var(--ease);
}
.faq-item.is-open{border-color:var(--line-hi)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;
  color:var(--text);
  font-size:16px;font-weight:600;
  text-align:left;
  padding:20px 24px;
  min-height:44px;
  cursor:pointer;
  transition:color 220ms var(--ease);
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{
  flex:0 0 22px;
  width:22px;height:22px;
  display:grid;place-items:center;
  color:var(--c-primary);
  font-size:16px;
  transition:transform 260ms var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms var(--ease)}
.faq-a-inner{padding:0 24px 22px;font-size:15px;color:var(--text-weak);line-height:1.9}

/* ---------- CTA 横幅 ---------- */
.cta-section{padding:0 0 96px}
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:20px;
  background:linear-gradient(135deg,rgba(255,106,31,.92) 0%,rgba(255,106,31,.62) 100%);
  padding:46px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  min-height:200px;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(0,0,0,.06) 0 2px,transparent 2px 10px);
  pointer-events:none;
}
.cta-text{position:relative;z-index:2;max-width:640px}
.cta-text h2{font-size:28px;font-weight:800;color:#1A0C04;line-height:1.3}
.cta-text p{margin-top:10px;font-size:15px;color:rgba(26,12,4,.78);line-height:1.8}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-primary{background:#160C06;color:#FFE9DC}
.cta-band .btn-primary:hover{background:#241209;box-shadow:0 10px 24px rgba(0,0,0,.28)}
.cta-band .btn-ghost{border-color:rgba(26,12,4,.42);color:#1A0C04;font-weight:700}
.cta-band .btn-ghost:hover{border-color:#1A0C04;color:#1A0C04;background:rgba(255,255,255,.14)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--footer-bg);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  margin-top:auto;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand .brand{padding:0}
.footer-brand p{margin-top:18px;font-size:14px;color:var(--text-weak);line-height:1.8;max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--c-primary);letter-spacing:.02em;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{
  display:inline-block;
  font-size:14px;color:var(--text-weak);
  transition:color 200ms var(--ease),transform 200ms var(--ease);
}
.footer-col a:hover{color:#FFFFFF;transform:translateX(2px)}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid var(--line);
  padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  font-size:12px;color:var(--text-faint);
  flex-wrap:wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width:1399.98px){
  .container{max-width:1200px}
}
@media (min-width:992px) and (max-width:1199.98px){
  :root{--nav-w:200px}
  .sidebar{padding:20px 12px}
  .brand-text strong{font-size:13.5px}
  .brand-text small{display:none}
  .nav-item{font-size:14px;padding:0 10px}
  .container{padding-left:24px;padding-right:24px}
  .cat-hero h1{font-size:38px}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .feature-grid{grid-template-columns:1fr;grid-template-rows:auto}
  .feature-main{grid-row:auto}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media (max-width:991.98px){
  .sidebar{
    transform:translateX(-100%);
    transition:transform 260ms var(--ease);
    width:82vw;max-width:320px;
    z-index:130;
    padding-top:20px;
    box-shadow:0 0 40px rgba(0,0,0,.5);
  }
  .sidebar.is-open{transform:translateX(0)}
  .drawer-close{display:grid}
  .mobile-bar{display:flex}
  .main{margin-left:0;padding-top:60px}
  .cat-hero{min-height:300px}
  .cat-hero-body{padding-top:36px;padding-bottom:26px}
  .cat-hero h1{font-size:30px;margin:14px 0 10px}
  .hero-sub{font-size:15px}
  .breadcrumb .current{max-width:46vw}
  .section{padding:56px 0}
  .cta-section{padding-bottom:64px}
  .sec-title{font-size:24px}
  .sec-head{margin-bottom:26px}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .feature-grid{grid-template-columns:1fr;grid-template-rows:auto}
  .feature-main{grid-row:auto}
  .entry-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 26px}
  .cta-band .btn{width:100%}
  .cta-actions{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:575.98px){
  .container{padding-left:18px;padding-right:18px}
  .cat-hero{min-height:290px}
  .cat-hero h1{font-size:26px}
  .hero-bar-inner{grid-template-columns:1fr;gap:12px;padding-top:16px;padding-bottom:16px}
  .hero-bar-item{flex-direction:row;align-items:baseline;gap:10px}
  .step-grid{grid-template-columns:1fr}
  .section{padding:48px 0}
  .sec-title{font-size:22px}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a-inner{padding:0 18px 18px;font-size:14.5px}
  .feature-body{padding:20px}
  .card-body{padding:18px}
  .cta-band{border-radius:16px;padding:28px 20px}
  .cta-text h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .card:hover,.step-card:hover,.mini-card:hover,.feature-main:hover{transform:none}
  .card:hover .card-media img,.feature-main:hover .feature-media img{transform:none}
}

/* roulang page: article */
:root{
  --c-primary:#FF6A1F;
  --c-primary-hi:#FF8339;
  --c-primary-soft:rgba(255,106,31,.12);
  --c-primary-mid:rgba(255,106,31,.16);
  --c-accent:#35E0A1;
  --c-warm:#FFC53D;
  --c-bg:#0B0A12;
  --c-panel:#15131F;
  --c-panel-2:#1B1828;
  --c-foot:#0A0912;
  --c-text:#F2F1F7;
  --c-text-2:#B8B5C8;
  --c-text-weak:#8C89A0;
  --c-text-faint:#6E6B82;
  --line:rgba(255,255,255,.07);
  --line-strong:rgba(255,255,255,.22);
  --line-primary:rgba(255,106,31,.40);
  --paper:#FBFAF7;
  --paper-2:#F3F1EC;
  --paper-text:#1B1A22;
  --paper-text-2:#5A5766;
  --danger:#FF5C7A;
  --r-poster:16px;
  --r-card:14px;
  --r-sub:12px;
  --r-btn:10px;
  --r-badge:6px;
  --shadow-card:0 1px 2px rgba(0,0,0,.4);
  --shadow-hover:0 12px 32px rgba(255,106,31,.18);
  --ease:220ms cubic-bezier(.22,.61,.36,1);
  --sidebar-w:232px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease),box-shadow var(--ease)}
a:hover{color:var(--c-primary-hi)}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--c-text)}
p{margin:0}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-primary);color:#14121C;padding:10px 16px;border-radius:var(--r-btn);z-index:9999}
.skip-link:focus{left:16px;top:16px}
.container{width:100%;max-width:1320px;margin:0 auto;padding:0 32px}
:focus-visible{outline:3px solid rgba(255,106,31,.45);outline-offset:2px;border-radius:6px}

/* ---------- 布局骨架 ---------- */
.layout{display:flex;align-items:flex-start;min-height:100vh}
.content-col{flex:1;min-width:0;display:flex;flex-direction:column}

/* ---------- 左侧竖向导航 ---------- */
.sidebar{
  width:var(--sidebar-w);flex:0 0 var(--sidebar-w);
  position:sticky;top:0;height:100vh;
  background:#100E1A;border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:22px 16px 20px;z-index:80;
}
.sidebar-head{display:flex;align-items:flex-start;justify-content:space-between;gap:8px}
.brand{display:flex;align-items:center;gap:12px;color:var(--c-text)}
.brand:hover{color:var(--c-text)}
.brand-mark{
  width:48px;height:48px;flex:0 0 48px;border-radius:12px;
  background:linear-gradient(140deg,var(--c-primary),#FF9A55);
  color:#171320;font-weight:800;font-size:22px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-text strong{font-size:14.5px;font-weight:700;line-height:1.35;letter-spacing:.01em}
.brand-text small{font-size:11.5px;color:var(--c-text-faint);line-height:1.5;margin-top:2px}
.drawer-close{display:none;background:transparent;border:1px solid var(--line);color:var(--c-text-2);width:36px;height:36px;border-radius:var(--r-btn)}
.side-nav{margin-top:28px;display:flex;flex-direction:column;gap:4px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:var(--r-btn);
  color:var(--c-text-weak);font-size:15px;
}
.nav-item i{width:18px;font-size:16px;text-align:center;color:var(--c-text-faint)}
.nav-item span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nav-item:hover{background:rgba(255,106,31,.10);color:var(--c-text)}
.nav-item:hover i{color:var(--c-primary)}
.nav-item.is-active{background:var(--c-primary-mid);color:var(--c-primary)}
.nav-item.is-active i{color:var(--c-primary)}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-primary);
}
.sidebar-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line)}
.sidebar-foot p{font-size:11.5px;color:var(--c-text-faint);margin-top:10px;line-height:1.6}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:all var(--ease);text-align:center;
}
.btn-primary{background:var(--c-primary);color:#14121C}
.btn-primary:hover{background:var(--c-primary-hi);color:#14121C;transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,106,31,.35)}
.btn-primary:active{transform:translateY(0);filter:brightness(.95)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--c-text)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary)}
.btn-block{width:100%}
.side-cta{min-height:46px;font-size:14px}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobile-topbar{
  display:none;position:sticky;top:0;z-index:90;height:60px;
  align-items:center;justify-content:space-between;
  padding:0 16px;background:rgba(16,14,26,.96);
  border-bottom:1px solid var(--line);
}
.mobile-topbar .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:17px;border-radius:10px}
.mobile-topbar .brand-text strong{font-size:14px}
.mobile-topbar .brand-text small{display:none}
.menu-toggle{background:transparent;border:1px solid var(--line-strong);color:var(--c-text);width:44px;height:44px;border-radius:var(--r-btn);font-size:17px}
.drawer-mask{
  display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:95;
}
.drawer-mask.is-open{display:block}

/* ---------- 正文区 ---------- */
.main-wrap{flex:1;padding:36px 0 72px}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--c-text-weak);margin-bottom:26px;
}
.breadcrumb a{color:var(--c-text-weak)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--c-text-faint)}
.breadcrumb .current{max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--c-text-2)}

.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;align-items:start}
.article-main{min-width:0}

.article-head{padding-bottom:24px;border-bottom:1px solid var(--line)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;letter-spacing:.04em;
  padding:4px 10px;border-radius:var(--r-badge);
  background:rgba(255,255,255,.08);color:var(--c-text-2);
}
.badge-hot{background:var(--c-primary);color:#14121C}
.badge-new{background:var(--c-warm);color:#2A2110}
.article-head h1{
  font-size:42px;font-weight:800;line-height:1.18;letter-spacing:.01em;
  margin:18px 0 18px;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;
  font-size:13.5px;color:var(--c-text-weak);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--c-text-faint);font-size:13px}

/* ---------- 纸面阅读卡 ---------- */
.paper{
  background:var(--paper);
  color:var(--paper-text);
  border-radius:var(--r-poster);
  padding:48px;
  margin-top:28px;
  max-width:820px;
  font-size:17px;
  line-height:1.9;
  word-break:break-word;
}
.paper > *:first-child{margin-top:0}
.paper p{margin:0 0 1.2em;color:var(--paper-text)}
.paper h2{
  position:relative;font-size:24px;font-weight:700;line-height:1.4;
  color:var(--paper-text);margin:40px 0 16px;padding-left:16px;
}
.paper h2::before{
  content:"";position:absolute;left:0;top:7px;width:4px;height:18px;
  border-radius:2px;background:var(--c-primary);
}
.paper h3{font-size:20px;font-weight:600;color:var(--paper-text);margin:32px 0 12px}
.paper h4{font-size:17px;font-weight:600;color:var(--paper-text);margin:24px 0 10px}
.paper ul,.paper ol{margin:0 0 1.2em;padding-left:22px;color:var(--paper-text);line-height:1.6}
.paper ul{list-style:disc}
.paper ol{list-style:decimal}
.paper li{margin:0 0 .5em}
.paper blockquote{
  margin:24px 0;padding:16px 20px;
  border-left:3px solid var(--c-primary);
  background:var(--paper-2);border-radius:0 var(--r-sub) var(--r-sub) 0;
  color:var(--paper-text-2);
}
.paper blockquote p{margin:0;color:var(--paper-text-2)}
.paper img{border-radius:var(--r-sub);margin:20px auto;height:auto}
.paper a{color:#C1500F;text-decoration:underline;text-underline-offset:3px}
.paper a:hover{color:var(--c-primary)}
.paper hr{border:0;border-top:1px solid #E2DED4;margin:32px 0}
.paper table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15.5px;
  background:#fff;border-radius:var(--r-sub);overflow:hidden;
  display:block;overflow-x:auto;
}
.paper thead th{
  background:var(--paper-2);color:var(--paper-text);font-weight:600;
  text-align:left;padding:12px 16px;white-space:nowrap;
}
.paper tbody td{padding:12px 16px;border-top:1px solid #E7E3DA;color:var(--paper-text-2);vertical-align:top}
.paper strong{color:var(--paper-text);font-weight:700}

/* ---------- 空态 ---------- */
.empty-state{
  background:var(--c-panel);border:1px solid var(--line);border-radius:var(--r-poster);
  padding:64px 32px;text-align:center;margin-top:28px;
}
.empty-state i{font-size:40px;color:var(--c-text-faint);margin-bottom:16px;display:block}
.empty-state p{color:var(--c-text-2);margin-bottom:22px;font-size:15.5px}

/* ---------- 文章尾部 ---------- */
.article-foot{margin-top:32px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:28px}
.tag-row .label{font-size:13.5px;color:var(--c-text-weak);margin-right:4px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;
  border-radius:var(--r-badge);background:var(--c-panel-2);
  border:1px solid var(--line);color:var(--c-text-2);font-size:13px;
}
.tag:hover{border-color:var(--line-primary);color:var(--c-primary)}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:28px}
.pager a{
  display:block;padding:18px 20px;border-radius:var(--r-card);
  background:var(--c-panel);border:1px solid var(--line);color:var(--c-text-2);
}
.pager a:hover{border-color:var(--line-primary);transform:translateY(-4px);box-shadow:var(--shadow-hover);color:var(--c-text)}
.pager .dir{font-size:12.5px;color:var(--c-text-faint);display:block;margin-bottom:6px;letter-spacing:.04em}
.pager .t{font-size:15px;font-weight:600;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pager .next{text-align:right}
.foot-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 右侧栏 ---------- */
.article-side{position:sticky;top:36px;display:flex;flex-direction:column;gap:24px}
.side-card{
  background:var(--c-panel);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;
}
.side-card h3{
  font-size:16px;font-weight:700;margin-bottom:18px;
  display:flex;align-items:center;gap:9px;
}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--c-primary)}
.mini-list{display:flex;flex-direction:column;gap:14px}
.mini-item{display:flex;gap:12px;align-items:flex-start}
.mini-item img{
  width:72px;height:56px;object-fit:cover;border-radius:10px;flex:0 0 72px;
  background:var(--c-panel-2);
}
.mini-item .t{
  font-size:14px;font-weight:600;line-height:1.6;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mini-item:hover .t{color:var(--c-primary)}
.mini-item .d{font-size:12.5px;color:var(--c-text-faint);margin-top:6px;display:block}
.cloud{display:flex;flex-wrap:wrap;gap:8px}
.cloud a{
  font-size:13px;padding:6px 12px;border-radius:var(--r-badge);
  background:var(--c-panel-2);border:1px solid var(--line);color:var(--c-text-weak);
}
.cloud a:hover{border-color:var(--line-primary);color:var(--c-primary)}
.side-steps{display:flex;flex-direction:column;gap:14px}
.side-steps li{display:flex;gap:12px;font-size:14px;color:var(--c-text-2);line-height:1.7}
.side-steps .num{
  font-family:"Oswald","Barlow Condensed",sans-serif;
  font-size:18px;font-weight:700;color:var(--c-accent);flex:0 0 24px;line-height:1.5;
}

/* ---------- 相关推荐 ---------- */
.related-block{margin-top:64px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px}
.section-head h2{font-size:28px;font-weight:700;line-height:1.25}
.section-head p{font-size:14px;color:var(--c-text-weak);margin-top:8px}
.link-more{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-more:hover{text-decoration:underline;text-underline-offset:3px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:24px}
.post-card{
  display:block;background:var(--c-panel);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;transition:all var(--ease);height:100%;
}
.post-card:hover{transform:translateY(-4px);border-color:var(--line-primary);box-shadow:var(--shadow-hover)}
.post-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-panel-2)}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms cubic-bezier(.22,.61,.36,1)}
.post-card:hover .thumb img{transform:scale(1.06)}
.post-card .thumb .badge{position:absolute;left:12px;top:12px}
.post-card .body{padding:20px}
.post-card .t{
  font-size:16.5px;font-weight:600;line-height:1.6;color:var(--c-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .s{
  font-size:14px;color:var(--c-text-weak);line-height:1.75;margin-top:10px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .d{font-size:12.5px;color:var(--c-text-faint);margin-top:14px;display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-foot);border-top:1px solid var(--line);padding:56px 0 24px;margin-top:auto}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:36px}
.footer-brand p{font-size:14px;color:var(--c-text-weak);line-height:1.8;margin-top:16px;max-width:340px}
.footer-col h4{font-size:14px;color:var(--c-primary);font-weight:600;margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:11px}
.footer-col a,.footer-col span{font-size:14px;color:var(--c-text-weak);display:inline-block}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:20px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
}
.footer-bottom p{font-size:12px;color:var(--c-text-faint)}

/* ---------- 断点 ---------- */
@media (max-width:1439px){
  .article-head h1{font-size:38px}
}
@media (max-width:1199px){
  :root{--sidebar-w:88px}
  .sidebar{padding:20px 12px;align-items:center}
  .brand-text{display:none}
  .nav-item{justify-content:center;padding:0}
  .nav-item span{display:none}
  .side-cta span{display:none}
  .side-cta{padding:0;width:44px}
  .sidebar-foot p{display:none}
  .article-shell{grid-template-columns:minmax(0,1fr) 288px;gap:24px}
}
@media (max-width:991px){
  .sidebar{
    position:fixed;left:0;top:0;bottom:0;height:100%;width:82vw;max-width:320px;
    transform:translateX(-100%);transition:transform var(--ease);
    padding:20px 16px;align-items:stretch;z-index:100;
  }
  .sidebar.is-open{transform:translateX(0)}
  .sidebar .brand-text{display:flex}
  .sidebar .nav-item{justify-content:flex-start;padding:0 12px}
  .sidebar .nav-item span{display:inline}
  .sidebar .side-cta span{display:inline}
  .sidebar .side-cta{width:100%;padding:0 20px}
  .sidebar-foot p{display:block}
  .drawer-close{display:inline-flex;align-items:center;justify-content:center}
  .mobile-topbar{display:flex}
  .main-wrap{padding:26px 0 56px}
  .article-shell{grid-template-columns:minmax(0,1fr)}
  .article-side{position:static}
  .article-head h1{font-size:30px}
  .paper{padding:28px 22px;font-size:16.5px;max-width:100%}
  .paper h2{font-size:21px;margin-top:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .related-block{margin-top:48px}
  .section-head h2{font-size:24px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .article-head h1{font-size:27px;margin:14px 0 14px}
  .article-meta{gap:8px 16px;font-size:13px}
  .breadcrumb{font-size:13px;margin-bottom:20px}
  .breadcrumb .current{max-width:200px}
  .paper{padding:22px 18px;border-radius:var(--r-card)}
  .pager{grid-template-columns:1fr}
  .pager .next{text-align:left}
  .card-grid{grid-template-columns:1fr;gap:18px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .empty-state{padding:48px 20px}
}
@media (max-width:519px){
  .brand-text strong{font-size:13.5px}
  .article-head h1{font-size:24px}
  .btn{width:100%}
  .foot-actions .btn{width:100%}
  .mobile-topbar .brand-text strong{max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:block}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .post-card:hover,.pager a:hover,.btn-primary:hover{transform:none!important}
}