/* roulang page: index */
:root{
  --brand-900:#2A0B16;
  --brand-700:#4A1226;
  --brand-600:#6B1F35;
  --brand-500:#8A2A44;
  --accent-500:#14B8A6;
  --accent-300:#6EE7DC;
  --amber-500:#F5A524;
  --bg-0:#F7F4F1;
  --bg-1:#FFFFFF;
  --bg-dark:#140A12;
  --ink-900:#1A1016;
  --ink-600:#5A4F56;
  --ink-400:#8A7E85;
  --line:#E7E0DA;
  --grad-brand:linear-gradient(120deg,#6B1F35 0%,#3A1029 58%,#14B8A6 145%);
  --sh-1:0 1px 2px rgba(26,16,22,.06);
  --sh-2:0 10px 30px rgba(107,31,53,.10);
  --sh-3:0 18px 46px rgba(107,31,53,.16);
  --r-card:20px;
  --r-lg:28px;
  --r-btn:12px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-900);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{text-decoration:none;color:var(--brand-600);transition:color .3s var(--ease);}
a:hover{color:var(--accent-500);}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px;}
.container{max-width:1280px;padding-left:20px;padding-right:20px;}
@media (min-width:1400px){.container{max-width:1320px;}}
.section{padding:96px 0;}
.section-sm{padding:72px 0;}
.num{font-feature-settings:"tnum";font-variant-numeric:tabular-nums;}

/* ============ 顶部信息条 ============ */
.info-bar{
  background:var(--bg-dark);
  color:#B9AEB5;
  height:38px;
  display:flex;
  align-items:center;
  font-size:13px;
}
.info-bar .container{display:flex;align-items:center;width:100%;gap:16px;}
.info-domain{color:#F3EDEA;font-weight:600;letter-spacing:.02em;display:flex;align-items:center;gap:7px;}
.info-domain i{color:var(--accent-300);font-size:12px;}
.info-mid{flex:1;text-align:center;color:#B9AEB5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.info-actions{display:flex;align-items:center;gap:18px;}
.info-actions a{color:#E4D9DE;font-size:13px;}
.info-actions a:hover{color:var(--accent-300);}
@media (max-width:767px){
  .info-mid{display:none;}
  .info-link-secondary{display:none;}
  .info-actions{margin-left:auto;}
}

/* ============ 主导航 ============ */
.site-nav{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.site-nav .navbar{min-height:72px;padding:10px 0;flex-wrap:nowrap;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:14px;
  background:var(--grad-brand);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:17px;
  box-shadow:var(--sh-2);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:16px;font-weight:700;color:var(--brand-900);letter-spacing:-.01em;}
.brand-sub{font-size:12px;color:var(--ink-400);letter-spacing:.22em;}
.nav-links{display:flex;align-items:center;gap:6px;margin:0 auto;}
.nav-link-custom{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-600);
  white-space:nowrap;
}
.nav-link-custom:hover{color:var(--brand-600);}
.nav-link-custom.active{color:var(--brand-600);font-weight:600;}
.nav-link-custom.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:3px;
  background:var(--grad-brand);
}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-btn{
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink-600);
  display:flex;align-items:center;justify-content:center;font-size:15px;
  transition:all .3s var(--ease);
}
.icon-btn:hover{color:var(--brand-600);border-color:var(--brand-500);box-shadow:var(--sh-2);}
.btn-nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 20px;border-radius:999px;
  background:var(--grad-brand);color:#fff;font-size:14px;font-weight:600;
  box-shadow:var(--sh-2);transition:all .3s var(--ease);
}
.btn-nav-cta:hover{color:#fff;filter:brightness(1.08);box-shadow:var(--sh-3);}
.btn-nav-cta:active{transform:translateY(1px);}
.navbar-toggler-custom{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;
  color:var(--brand-600);font-size:16px;
}
@media (max-width:991px){
  .nav-links,.nav-right{display:none;}
  .site-nav .navbar{justify-content:space-between;}
}
.offcanvas{background:var(--bg-0);}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.offcanvas-body{padding:16px 20px 28px;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;padding:0 6px;border-bottom:1px solid var(--line);
  color:var(--ink-900);font-size:15px;font-weight:500;
}
.drawer-link span{display:flex;align-items:center;gap:10px;}
.drawer-link i{color:var(--ink-400);font-size:13px;}
.drawer-link:hover,.drawer-link.active{color:var(--brand-600);}
.drawer-link.active i{color:var(--brand-600);}

/* ============ 按钮 ============ */
.btn-primary-grad{
  display:inline-flex;align-items:center;gap:9px;
  height:52px;padding:0 30px;border-radius:999px;border:0;
  background:var(--grad-brand);color:#fff;font-size:16px;font-weight:600;
  box-shadow:var(--sh-2);
  transition:filter .3s var(--ease),box-shadow .3s var(--ease),transform .2s var(--ease);
}
.btn-primary-grad:hover{color:#fff;filter:brightness(1.08);box-shadow:var(--sh-3);}
.btn-primary-grad:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;
  height:52px;padding:0 28px;border-radius:999px;
  border:1px solid var(--brand-500);background:transparent;
  color:var(--brand-600);font-size:16px;font-weight:600;
  transition:all .3s var(--ease);
}
.btn-ghost:hover{background:#fff;color:var(--brand-700);box-shadow:var(--sh-2);border-color:var(--brand-600);}
.btn-ghost:active{transform:translateY(1px);}
.link-more{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--brand-600);
  padding-bottom:3px;
  background-image:linear-gradient(var(--accent-500),var(--accent-500));
  background-size:0% 2px;background-repeat:no-repeat;background-position:0 100%;
  transition:background-size .35s var(--ease),color .3s var(--ease);
}
.link-more:hover{color:var(--brand-700);background-size:100% 2px;}
.link-more i{transition:transform .3s var(--ease);}
.link-more:hover i{transform:translateX(4px);}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:80px 0 88px;
  background:var(--bg-0);
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,184,166,.13),rgba(20,184,166,0) 68%);
}
.hero .container{position:relative;z-index:1;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 15px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  color:var(--brand-600);font-size:13px;font-weight:600;
  box-shadow:var(--sh-1);margin-bottom:22px;
}
.eyebrow i{color:var(--accent-500);font-size:11px;}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.18;
  font-weight:700;
  margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--brand-600);}
.hero-sub{
  font-size:17px;color:var(--ink-600);line-height:1.8;
  max-width:30em;margin-bottom:30px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;}
.stat{
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:9px 18px;display:flex;align-items:baseline;gap:8px;
  box-shadow:var(--sh-1);
}
.stat-num{font-size:19px;font-weight:700;color:var(--amber-500);line-height:1;}
.stat-unit{font-size:12px;color:var(--ink-400);}
.stat-label{font-size:13px;color:var(--ink-600);}
.hero-visual{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:16/9;
  box-shadow:0 24px 60px rgba(42,11,22,.24),inset 0 0 0 1px rgba(255,255,255,.14);
  background:var(--grad-brand);
}
.hero-visual img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.hero-visual:hover img{transform:scale(1.04);}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(107,31,53,.72) 0%,rgba(58,16,41,.42) 42%,rgba(20,10,18,.16) 100%);
}
.hero-corner{
  position:absolute;top:18px;right:18px;
  background:rgba(20,10,18,.55);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  border:1px solid rgba(245,165,36,.5);
  color:#F6EFEA;font-size:12px;border-radius:999px;padding:7px 14px;
  display:flex;align-items:center;gap:7px;
}
.hero-corner b{color:var(--amber-500);font-size:15px;font-weight:700;}
.hero-tag{
  position:absolute;left:18px;bottom:18px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.3);
  color:#fff;font-size:12px;font-weight:600;border-radius:999px;padding:6px 14px;
}
@media (max-width:991px){
  .hero{padding:56px 0 64px;}
  .hero-visual{margin-top:8px;}
}
@media (max-width:575px){
  .hero-cta{gap:10px;}
  .btn-primary-grad,.btn-ghost{height:48px;padding:0 22px;font-size:15px;}
  .hero-stats{gap:8px;}
  .stat{padding:7px 13px;}
}

/* ============ 板块标题 ============ */
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:38px;flex-wrap:wrap;
}
.sec-head h2{font-size:clamp(24px,3vw,34px);line-height:1.24;}
.sec-head .sec-desc{margin-top:10px;font-size:15px;color:var(--ink-600);max-width:44em;}
.sec-kicker{
  display:block;font-size:13px;font-weight:600;letter-spacing:.16em;
  color:var(--accent-500);margin-bottom:10px;text-transform:uppercase;
}

/* ============ 合集目录 ============ */
.cat-main-card{
  display:flex;background:#fff;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);height:100%;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.cat-main-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.cat-main-media{position:relative;flex:0 0 44%;aspect-ratio:3/2;overflow:hidden;background:var(--grad-brand);}
.cat-main-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.cat-main-card:hover .cat-main-media img{transform:scale(1.04);}
.cat-main-body{padding:30px;display:flex;flex-direction:column;gap:12px;}
.cat-no{
  font-size:30px;font-weight:700;line-height:1;color:transparent;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;
  font-feature-settings:"tnum";
}
.cat-main-body h3{font-size:22px;line-height:1.35;}
.cat-main-body h3 a{color:var(--ink-900);}
.cat-main-card:hover h3 a{color:var(--brand-600);}
.cat-main-body p{font-size:15px;color:var(--ink-600);line-height:1.7;}
.tag-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;font-size:12px;font-weight:600;
  background:var(--bg-0);border:1px solid var(--line);color:var(--ink-600);
}
.tag-pill.accent{background:rgba(20,184,166,.09);border-color:rgba(20,184,166,.35);color:#0F8C7E;}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;}
.cat-small{display:grid;grid-template-columns:1fr 1fr;gap:20px;height:100%;}
.cat-small-card{
  background:#fff;border-radius:var(--r-card);padding:24px;
  border:1px solid var(--line);box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:11px;min-height:172px;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.cat-small-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(107,31,53,.25);}
.cat-small-no{font-size:13px;font-weight:700;color:var(--ink-400);letter-spacing:.1em;font-feature-settings:"tnum";}
.cat-small-card h3{font-size:17px;line-height:1.45;}
.cat-small-card h3 a{color:var(--ink-900);}
.cat-small-card:hover h3 a{color:var(--brand-600);}
.cat-small-card p{font-size:14px;color:var(--ink-600);line-height:1.65;}
.cat-small-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;}
.cat-small-foot i{color:var(--brand-600);transition:transform .3s var(--ease);}
.cat-small-card:hover .cat-small-foot i{transform:translateX(4px);}
@media (max-width:767px){
  .cat-main-card{flex-direction:column;}
  .cat-main-media{flex:none;width:100%;}
  .cat-small{grid-template-columns:1fr;}
}

/* ============ 条目卡片 ============ */
.post-card{
  background:#fff;border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);height:100%;display:flex;flex-direction:column;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.post-card.big{flex-direction:row;}
.post-media{position:relative;aspect-ratio:3/2;overflow:hidden;background:var(--grad-brand);}
.post-card.big .post-media{flex:0 0 46%;aspect-ratio:auto;min-height:260px;}
.post-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.post-card:hover .post-media img{transform:scale(1.04);}
.post-body{padding:24px;display:flex;flex-direction:column;gap:11px;flex:1;}
.post-card.big .post-body{padding:32px;}
.meta-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(107,31,53,.07);border:1px solid rgba(107,31,53,.2);color:var(--brand-600);
}
.meta-time{font-size:13px;color:var(--ink-400);font-feature-settings:"tnum";}
.post-title{font-size:19px;line-height:1.45;}
.post-card.big .post-title{font-size:24px;}
.post-title a{color:var(--ink-900);display:block;}
.post-card:hover .post-title a{color:var(--brand-600);}
.post-excerpt{font-size:15px;color:var(--ink-600);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line);}
.post-foot .foot-cat{font-size:13px;color:var(--ink-400);}
.post-foot i{color:var(--brand-600);transition:transform .3s var(--ease);}
.post-card:hover .post-foot i{transform:translateX(4px);}
@media (max-width:767px){
  .post-card.big{flex-direction:column;}
  .post-card.big .post-media{flex:none;aspect-ratio:3/2;min-height:0;}
  .post-card.big .post-body{padding:24px;}
  .post-card.big .post-title{font-size:20px;}
}

/* ============ 最新信息 ============ */
.filter-bar{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:14px 18px;margin-bottom:30px;box-shadow:var(--sh-1);
}
.filter-bar .filter-label{font-size:14px;color:var(--ink-600);font-weight:600;}
.filter-select{
  height:44px;border-radius:12px;border:1px solid var(--line);
  padding:0 38px 0 14px;font-size:14px;color:var(--ink-900);background:#fff;
  appearance:none;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235A4F56' d='M6 8.5 1.5 4h9z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
}
.filter-select:focus{outline:2px solid var(--accent-500);outline-offset:2px;border-color:var(--accent-500);}
.filter-chips{display:flex;gap:8px;flex-wrap:wrap;margin-left:auto;}
.chip{
  padding:7px 15px;border-radius:999px;font-size:13px;font-weight:600;
  background:var(--bg-0);border:1px solid var(--line);color:var(--ink-600);
  transition:all .3s var(--ease);
}
.chip:hover{border-color:var(--brand-500);color:var(--brand-600);}
.chip.on{background:var(--grad-brand);color:#fff;border-color:transparent;}
.list-card{
  display:flex;gap:20px;background:#fff;border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-1);height:100%;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.list-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.list-thumb{
  flex:0 0 132px;aspect-ratio:3/2;border-radius:14px;overflow:hidden;
  background:var(--grad-brand);
}
.list-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.list-card:hover .list-thumb img{transform:scale(1.04);}
.list-body{display:flex;flex-direction:column;gap:9px;min-width:0;flex:1;}
.list-body h3{font-size:18px;line-height:1.45;}
.list-body h3 a{color:var(--ink-900);}
.list-card:hover .list-body h3 a{color:var(--brand-600);}
.list-body p{font-size:14px;color:var(--ink-600);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--bg-0);border:1px dashed var(--line);border-radius:var(--r-card);text-align:center;padding:30px;
}
.empty-state i{font-size:48px;color:var(--ink-400);opacity:.7;}
.empty-state p{font-size:15px;color:var(--ink-600);}
@media (max-width:575px){
  .list-card{flex-direction:column;}
  .list-thumb{flex:none;width:100%;}
}

/* ============ 横向轨道 ============ */
.rail-wrap{position:relative;}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 22px;margin:0 -4px;
  scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none;}
.rail-card{
  flex:0 0 262px;scroll-snap-align:start;
  background:#fff;border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.rail-card .rail-media{aspect-ratio:3/2;overflow:hidden;background:var(--grad-brand);}
.rail-card .rail-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.rail-card:hover .rail-media img{transform:scale(1.04);}
.rail-card .rail-body{padding:18px;display:flex;flex-direction:column;gap:10px;}
.rail-card h3{font-size:16px;line-height:1.5;color:var(--ink-900);}
.rail-card:hover h3{color:var(--brand-600);}
.rail-nav{display:flex;gap:10px;}
.rail-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;
  color:var(--brand-600);display:flex;align-items:center;justify-content:center;
  transition:all .3s var(--ease);
}
.rail-btn:hover{background:var(--grad-brand);color:#fff;border-color:transparent;box-shadow:var(--sh-2);}
@media (max-width:767px){
  .rail-nav{display:none;}
  .rail-card{flex:0 0 240px;}
}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--grad-brand);
  border-radius:var(--r-lg);
  padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--sh-3);
}
.cta-band::before,.cta-band::after{
  content:"";position:absolute;border-radius:50%;border:1px solid rgba(110,231,220,.28);
}
.cta-band::before{width:280px;height:280px;right:-70px;top:-120px;}
.cta-band::after{width:180px;height:180px;right:120px;bottom:-110px;background:rgba(255,255,255,.05);border-color:transparent;}
.cta-copy{position:relative;z-index:1;max-width:640px;}
.cta-copy h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.3;margin-bottom:12px;}
.cta-copy p{color:rgba(255,255,255,.82);font-size:15px;line-height:1.75;}
.cta-actions{position:relative;z-index:1;display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.btn-white{
  display:inline-flex;align-items:center;gap:9px;height:52px;padding:0 30px;border-radius:999px;
  background:#fff;color:var(--brand-600);font-size:16px;font-weight:600;
  box-shadow:0 10px 26px rgba(20,10,18,.22);
  transition:transform .25s var(--ease);
}
.btn-white:hover{color:var(--brand-700);transform:translateY(-2px);}
.share-group{display:flex;gap:10px;}
.share-btn{
  width:40px;height:40px;border-radius:50%;
  border:1px solid rgba(255,255,255,.55);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:15px;background:transparent;
  transition:all .3s var(--ease);
}
.share-btn:hover{background:#fff;color:var(--brand-600);border-color:#fff;}
@media (max-width:767px){
  .cta-band{padding:34px 24px;border-radius:22px;}
}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:16px;}
.faq-item{
  background:#fff;border-radius:16px;box-shadow:var(--sh-1);overflow:hidden;
  border:1px solid transparent;transition:box-shadow .3s var(--ease);
}
.faq-item:hover{box-shadow:var(--sh-2);}
.faq-item .accordion-button{
  background:#fff;color:var(--ink-900);font-size:16px;font-weight:600;
  padding:20px 22px;box-shadow:none;border-radius:16px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item .accordion-button:not(.collapsed){
  color:var(--brand-600);
  background:#fff;
  box-shadow:inset 4px 0 0 var(--accent-500);
}
.faq-item .accordion-button::after{display:none;}
.faq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  color:var(--brand-600);font-size:12px;
  transition:transform .3s var(--ease),background .3s var(--ease);
}
.faq-item .accordion-button:not(.collapsed) .faq-icon{
  transform:rotate(45deg);background:rgba(20,184,166,.12);border-color:rgba(20,184,166,.4);
}
.faq-item .accordion-body{
  padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--ink-600);
  border-top:1px solid var(--line);padding-top:18px;
}
@media (max-width:575px){
  .faq-item .accordion-button{font-size:15px;padding:17px 16px;}
  .faq-item .accordion-body{padding:14px 16px 18px;font-size:14px;}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-dark);color:#B9AEB5;padding:72px 0 0;margin-top:96px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand .brand-main{color:#F3EDEA;}
.footer-brand .brand-sub{color:#8A7E85;}
.site-footer h4{font-size:14px;font-weight:600;color:#F3EDEA;margin-bottom:18px;letter-spacing:.04em;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:#B9AEB5;transition:color .3s var(--ease),transform .3s var(--ease);display:inline-block;}
.footer-links a:hover{color:var(--accent-300);transform:translateX(3px);}
.footer-about p{font-size:14px;line-height:1.8;color:#B9AEB5;max-width:34em;}
.footer-domain{font-size:13px;color:#8A7E85;margin-top:14px;letter-spacing:.03em;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0;font-size:13px;color:#8A7E85;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
}
.footer-bottom a{color:#B9AEB5;}
.footer-bottom a:hover{color:var(--accent-300);}
@media (max-width:767px){
  .site-footer{padding-top:52px;margin-top:64px;}
  .section{padding:64px 0;}
  .section-sm{padding:56px 0;}
}
@media (max-width:575px){
  .section{padding:56px 0;}
  .sec-head{margin-bottom:26px;}
}

/* roulang page: article */
:root{
  --brand-900:#2A0B16;
  --brand-700:#4A1226;
  --brand-600:#6B1F35;
  --brand-500:#8A2A44;
  --accent-500:#14B8A6;
  --accent-300:#6EE7DC;
  --amber-500:#F5A524;
  --bg-0:#F7F4F1;
  --bg-1:#FFFFFF;
  --bg-dark:#140A12;
  --ink-900:#1A1016;
  --ink-600:#5A4F56;
  --ink-400:#8A7E85;
  --line:#E7E0DA;
  --grad-brand:linear-gradient(120deg,#6B1F35 0%,#3A1029 58%,#14B8A6 145%);
  --sh-1:0 1px 2px rgba(26,16,22,.06);
  --sh-2:0 10px 30px rgba(107,31,53,.10);
  --sh-3:0 18px 46px rgba(107,31,53,.16);
  --r-card:20px;
  --r-lg:28px;
  --r-btn:12px;
  --ease:.35s cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg-0);
  color:var(--ink-900);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:var(--brand-600);text-decoration:none;transition:color var(--ease),transform var(--ease),background var(--ease)}
a:hover{color:var(--brand-500)}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.24}
p{margin:0}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1280px;padding-inline:20px;margin-inline:auto}
@media (min-width:1400px){.container{max-width:1320px}}
.num{font-feature-settings:"tnum";font-variant-numeric:tabular-nums}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--bg-dark);color:#B9AEB5;font-size:13px;height:38px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;gap:16px;width:100%}
.topbar-domain{color:var(--accent-300);font-weight:600;letter-spacing:.03em;flex-shrink:0}
.topbar-tip{flex:1;text-align:center;color:#938990;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-links{display:flex;gap:18px;flex-shrink:0}
.topbar-links a{color:#B9AEB5;font-size:13px}
.topbar-links a:hover{color:var(--accent-300)}
@media (max-width:767.98px){
  .topbar-tip{display:none}
  .topbar-links{margin-left:auto}
  .topbar-links a:nth-child(2){display:none}
}

/* ---------- 主导航 ---------- */
.site-nav{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.93);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.site-nav .navbar{min-height:72px;display:flex;align-items:center;gap:20px;flex-wrap:nowrap}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:14px;background:var(--grad-brand);
  display:grid;place-items:center;color:#fff;font-size:17px;box-shadow:var(--sh-2);flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-main{font-size:16px;font-weight:700;color:var(--ink-900);letter-spacing:.01em;white-space:nowrap}
.brand-sub{font-size:12px;color:var(--ink-400);letter-spacing:.3em}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0 auto;padding:0}
.nav-link-custom{position:relative;display:block;padding:10px 14px;font-size:15px;font-weight:500;color:var(--ink-600);border-radius:10px;white-space:nowrap}
.nav-link-custom:hover{color:var(--brand-600);background:rgba(107,31,53,.06)}
.nav-link-custom.active{color:var(--brand-600);font-weight:600}
.nav-link-custom.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:3px;background:var(--grad-brand);
}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;flex-shrink:0}
.icon-btn{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--ink-600);background:#fff;
}
.icon-btn:hover{color:var(--brand-600);border-color:var(--brand-500);box-shadow:var(--sh-1)}
.btn-nav-cta{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px;border-radius:999px;
  background:var(--grad-brand);color:#fff;font-size:15px;font-weight:600;box-shadow:var(--sh-2);
  transition:filter var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-nav-cta:hover{color:#fff;filter:brightness(1.07);box-shadow:var(--sh-3)}
.btn-nav-cta:active{transform:translateY(1px)}
.navbar-toggler-custom{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;color:var(--ink-900);font-size:17px;
}
.navbar-toggler-custom:hover{border-color:var(--brand-500);color:var(--brand-600)}
@media (max-width:991.98px){
  .nav-links,.nav-right{display:none}
  .navbar-toggler-custom{margin-left:auto}
}
@media (min-width:992px){.navbar-toggler-custom{display:none}}

/* 移动抽屉 */
.drawer{width:320px;max-width:88vw;background:#fff}
.drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.drawer-title{font-size:16px;font-weight:700}
.drawer .offcanvas-body{padding:12px 14px 22px;display:flex;flex-direction:column}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;padding:0 12px;font-size:15px;font-weight:500;color:var(--ink-900);
  border-bottom:1px solid var(--line);border-radius:10px;
}
.drawer-link:hover{background:rgba(107,31,53,.05);color:var(--brand-600)}
.drawer-link i{font-size:12px;color:var(--ink-400)}
.drawer-cta{margin-top:20px;justify-content:center;width:100%}

/* ---------- 文章头 ---------- */
.article-hero{
  position:relative;overflow:hidden;color:#fff;
  padding:40px 0 54px;
  background:linear-gradient(120deg,#2A0B16 0%,#4A1226 60%,#3A1029 100%);
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.15;
}
.article-hero .container{position:relative;z-index:1}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;font-size:13px;margin-bottom:22px}
.breadcrumb-list a{color:rgba(255,255,255,.75)}
.breadcrumb-list a:hover{color:var(--accent-300)}
.breadcrumb-list .sep{color:rgba(255,255,255,.35);font-size:11px}
.breadcrumb-list .current{color:rgba(255,255,255,.55);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;font-size:12.5px;font-weight:600;
  color:var(--accent-300);background:rgba(110,231,220,.10);
  border:1px solid rgba(110,231,220,.42);letter-spacing:.02em;
}
.article-hero h1{
  font-size:clamp(26px,3.6vw,44px);font-weight:700;line-height:1.22;color:#fff;
  margin:18px 0 14px;max-width:960px;
}
.article-brandline{font-size:14px;color:rgba(255,255,255,.62);letter-spacing:.04em}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:22px}
.article-meta span{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:rgba(255,255,255,.72);
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  padding:6px 13px;border-radius:999px;
}
.article-meta span i{color:var(--accent-300);font-size:12px}
.share-group{display:flex;align-items:center;gap:10px;margin-top:24px}
.share-btn{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.4);color:#fff;font-size:15px;background:transparent;
}
.share-btn:hover{background:var(--grad-brand);border-color:transparent;color:#fff;transform:translateY(-2px)}
.share-label{font-size:13px;color:rgba(255,255,255,.55);margin-right:4px}

/* ---------- 文章主体 ---------- */
.article-shell{padding:56px 0 88px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:36px}
@media (min-width:1200px){.article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:48px}}
.article-panel{
  background:var(--bg-1);border:1px solid var(--line);border-radius:24px;
  padding:38px 42px;box-shadow:var(--sh-1);
}
@media (max-width:991.98px){.article-panel{padding:28px 24px;border-radius:20px}}
@media (max-width:575.98px){.article-panel{padding:22px 18px;border-radius:18px}.article-shell{padding:36px 0 64px}}

.article-body{max-width:820px;font-size:17px;line-height:1.9;color:#2C2028;overflow-wrap:break-word}
.article-body p{margin:0 0 22px}
.article-body h2{
  position:relative;font-size:26px;font-weight:700;line-height:1.38;
  margin:46px 0 18px;padding-left:16px;color:var(--ink-900);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;width:4px;height:1.02em;border-radius:4px;background:var(--grad-brand);
}
.article-body h3{font-size:20px;font-weight:600;margin:32px 0 14px;color:var(--ink-900)}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 12px;color:var(--brand-700)}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 22px}
.article-body li{margin-bottom:12px}
.article-body li::marker{color:var(--brand-500)}
.article-body blockquote{
  margin:28px 0;padding:20px 24px;background:#FBF6F2;
  border-left:4px solid var(--brand-600);border-radius:0 14px 14px 0;
  color:var(--ink-600);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:16px;margin:26px auto;box-shadow:var(--sh-1)}
.article-body figure{margin:28px 0}
.article-body figcaption{font-size:13px;color:var(--ink-400);text-align:center;margin-top:10px}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--accent-500)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.article-body table{
  display:block;overflow-x:auto;width:100%;min-width:100%;
  border-collapse:collapse;margin:26px 0;font-size:15px;
}
.article-body th,.article-body td{padding:12px 14px;border:1px solid var(--line);text-align:left;white-space:nowrap}
.article-body thead th{background:#F5EFEA;color:var(--brand-700);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FBF7F3}
.article-body code{background:#F5EFEA;border-radius:6px;padding:2px 6px;font-size:15px;color:var(--brand-700)}

/* 正文底部标签 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line)}
.tag-row .tag-label{font-size:13px;color:var(--ink-400);align-self:center;margin-right:4px}
.tag-pill{
  display:inline-flex;align-items:center;gap:6px;padding:7px 15px;border-radius:999px;
  font-size:13px;font-weight:600;color:var(--brand-700);
  background:#FBF6F2;border:1px solid var(--line);
}
.tag-pill:hover{color:#fff;background:var(--grad-brand);border-color:transparent;transform:translateY(-2px)}

/* 空态 */
.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--bg-0);border:1px dashed var(--line);border-radius:18px;text-align:center;padding:36px 20px;
}
.empty-state i{font-size:44px;color:var(--ink-400);opacity:.6}
.empty-state p{font-size:15px;color:var(--ink-600)}
.btn-primary-custom{
  display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 24px;border-radius:12px;
  background:var(--grad-brand);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--sh-2);transition:filter var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary-custom:hover{color:#fff;filter:brightness(1.07);box-shadow:var(--sh-3)}
.btn-primary-custom:active{transform:translateY(1px)}
.btn-ghost-custom{
  display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 24px;border-radius:12px;
  background:#fff;color:var(--brand-600);font-size:15px;font-weight:600;border:1px solid var(--brand-500);
}
.btn-ghost-custom:hover{color:#fff;background:var(--brand-600);border-color:var(--brand-600)}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:22px}
@media (min-width:1200px){.article-side{position:sticky;top:96px;align-self:start}}
.side-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:var(--sh-1)}
.side-card h3{
  font-size:15px;font-weight:700;color:var(--ink-900);margin-bottom:16px;
  display:flex;align-items:center;gap:8px;
}
.side-card h3::before{content:"";width:4px;height:15px;border-radius:3px;background:var(--grad-brand)}
.toc-list{list-style:none;display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;font-size:14px;color:var(--ink-600);padding:8px 10px;border-radius:10px;
  border-left:2px solid transparent;transition:all var(--ease);
}
.toc-list a:hover{color:var(--brand-600);background:#FBF6F2;border-left-color:var(--accent-500)}
.side-post{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line)}
.side-post:last-child{border-bottom:0;padding-bottom:0}
.side-thumb{width:66px;height:46px;border-radius:12px;overflow:hidden;flex-shrink:0;background:var(--grad-brand)}
.side-thumb img{width:100%;height:100%}
.side-post-body{display:flex;flex-direction:column;gap:4px;min-width:0}
.side-post-title{font-size:14px;font-weight:600;color:var(--ink-900);line-height:1.45}
.side-post:hover .side-post-title{color:var(--brand-600)}
.side-post-time{font-size:12px;color:var(--ink-400)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud a{
  font-size:13px;padding:6px 12px;border-radius:999px;color:var(--ink-600);
  background:#FBF6F2;border:1px solid var(--line);
}
.tag-cloud a:hover{color:#fff;background:var(--grad-brand);border-color:transparent}

/* ---------- 返回入口 & 相关推荐 ---------- */
.return-row{display:grid;grid-template-columns:1fr;gap:16px;margin-top:36px}
@media (min-width:768px){.return-row{grid-template-columns:1fr 1fr}}
.return-card{
  display:flex;flex-direction:column;gap:6px;padding:22px 24px;
  background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.return-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-500)}
.rc-label{font-size:12.5px;font-weight:600;color:var(--accent-500);letter-spacing:.06em}
.rc-title{font-size:16px;font-weight:600;color:var(--ink-900)}
.rc-desc{font-size:13.5px;color:var(--ink-600);line-height:1.7}

.related-block{margin-top:64px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:26px;flex-wrap:wrap}
.section-head h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;color:var(--ink-900)}
.section-head p{font-size:14px;color:var(--ink-600);margin-top:8px}
.head-link{font-size:14px;font-weight:600;color:var(--brand-600);display:inline-flex;align-items:center;gap:6px}
.head-link i{transition:transform var(--ease)}
.head-link:hover i{transform:translateX(4px)}
.related-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media (min-width:768px){.related-grid{grid-template-columns:1.35fr 1fr}}
.related-big,.related-small{
  background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;
  box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease);
}
.related-big:hover,.related-small:hover{transform:translateY(-4px);box-shadow:var(--sh-3)}
.related-big{display:flex;flex-direction:column}
.related-cover{position:relative;aspect-ratio:3/2;overflow:hidden;background:var(--grad-brand)}
.related-cover img{width:100%;height:100%;transition:transform var(--ease)}
.related-big:hover .related-cover img,.related-small:hover .related-cover img{transform:scale(1.04)}
.related-body{padding:20px 22px 22px}
.related-body h3{font-size:17px;font-weight:600;color:var(--ink-900);margin-bottom:8px;line-height:1.45}
.related-big .related-body h3{font-size:19px}
.related-body p{font-size:14px;color:var(--ink-600);line-height:1.75;margin-bottom:10px}
.related-meta{font-size:12.5px;color:var(--ink-400);display:flex;align-items:center;gap:8px}
.related-small{display:flex;flex-direction:column}
.related-small .related-cover{aspect-ratio:3/2}

/* ---------- 回到顶部 ---------- */
.back-top{
  position:fixed;right:24px;bottom:28px;width:48px;height:48px;border-radius:50%;
  border:none;background:var(--grad-brand);color:#fff;font-size:16px;box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:all var(--ease);z-index:1040;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{filter:brightness(1.08)}
@media (max-width:575.98px){.back-top{right:16px;bottom:18px;width:44px;height:44px}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-dark);color:#B9AEB5;padding:64px 0 0}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.site-footer .brand-main{color:#F3EDEA}
.site-footer .brand-sub{color:#8A7F87}
.footer-about p{font-size:14px;line-height:1.85;color:#9D9299;margin-bottom:12px}
.footer-domain{color:var(--accent-300)!important;font-weight:600;letter-spacing:.05em}
.site-footer h4{font-size:14px;font-weight:600;color:#F3EDEA;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:#B9AEB5;display:inline-block}
.footer-links a:hover{color:var(--accent-300);transform:translateX(3px)}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#8A7F87;
}
.footer-bottom a{color:#B9AEB5}
.footer-bottom a:hover{color:var(--accent-300)}

/* roulang page: category1 */
:root{
  --brand-900:#2A0B16;
  --brand-700:#4A1226;
  --brand-600:#6B1F35;
  --brand-500:#8A2A44;
  --accent-500:#14B8A6;
  --accent-300:#6EE7DC;
  --amber-500:#F5A524;
  --bg-0:#F7F4F1;
  --bg-1:#FFFFFF;
  --bg-dark:#140A12;
  --ink-900:#1A1016;
  --ink-600:#5A4F56;
  --ink-400:#8A7E85;
  --line:#E7E0DA;
  --grad-brand:linear-gradient(120deg,#6B1F35 0%,#3A1029 58%,#14B8A6 145%);
  --sh-1:0 1px 2px rgba(26,16,22,.06);
  --sh-2:0 10px 30px rgba(107,31,53,.10);
  --sh-3:0 18px 46px rgba(107,31,53,.16);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:28px;
  --ease:.35s cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-900);
  background:var(--bg-0);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--accent-500);}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--ink-900);}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px;}

@media (min-width:1200px){.container{max-width:1280px;}}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ---------- 顶部信息条 ---------- */
.top-bar{
  background:var(--bg-dark);
  color:#B9AEB5;
  font-size:13px;
  min-height:38px;
  display:flex;
  align-items:center;
}
.top-bar .container{display:flex;align-items:center;gap:20px;}
.tb-domain{color:#F3EDEA;font-weight:600;letter-spacing:.03em;white-space:nowrap;}
.tb-note{color:#9E939B;margin:0 auto;white-space:nowrap;}
.tb-links{display:flex;align-items:center;gap:18px;white-space:nowrap;}
.tb-links a{color:#B9AEB5;font-size:13px;}
.tb-links a:hover{color:var(--accent-300);}
@media (max-width:767.98px){
  .tb-note{display:none;}
  .tb-links a:not(:first-child){display:none;}
  .tb-links{margin-left:auto;}
}

/* ---------- 主导航 ---------- */
.site-nav{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.93);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.site-nav .navbar{
  height:72px;
  display:flex;
  align-items:center;
  gap:20px;
  flex-wrap:nowrap;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;
  border-radius:12px;
  background:var(--grad-brand);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;
  box-shadow:var(--sh-2);
}
.brand-text{display:flex;flex-direction:column;line-height:1.05;}
.brand-main{font-size:15px;font-weight:700;color:var(--ink-900);letter-spacing:.01em;}
.brand-sub{font-size:11px;font-weight:600;color:var(--ink-400);letter-spacing:.24em;margin-top:3px;}
.brand:hover .brand-main{color:var(--brand-600);}

.nav-links{display:flex;align-items:center;gap:4px;margin:0 auto;}
.nav-link-custom{
  position:relative;
  display:block;
  padding:9px 14px;
  font-size:14.5px;
  font-weight:500;
  color:var(--ink-600);
  border-radius:10px;
  white-space:nowrap;
}
.nav-link-custom::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:3px;border-radius:3px;
  background:var(--grad-brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--ease);
}
.nav-link-custom:hover{color:var(--brand-600);}
.nav-link-custom:hover::after{transform:scaleX(1);}
.nav-link-custom.active{color:var(--brand-600);font-weight:600;}
.nav-link-custom.active::after{transform:scaleX(1);}

.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-600);
  display:inline-flex;align-items:center;justify-content:center;
  transition:all var(--ease);
}
.icon-btn:hover{color:var(--brand-600);border-color:var(--brand-600);box-shadow:var(--sh-1);}
.btn-nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;
  border-radius:999px;
  background:var(--grad-brand);
  color:#fff;font-size:15px;font-weight:600;
  border:0;
  transition:all var(--ease);
}
.btn-nav-cta:hover{color:#fff;filter:brightness(1.06);box-shadow:var(--sh-2);}
.btn-nav-cta:active{transform:translateY(1px);}

.navbar-toggler-custom{
  width:42px;height:42px;
  display:none;
  align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  color:var(--ink-900);
  font-size:17px;
}

@media (max-width:991.98px){
  .nav-links,.nav-right{display:none;}
  .navbar-toggler-custom{display:inline-flex;margin-left:auto;}
}

/* ---------- 抽屉导航 ---------- */
.offcanvas.drawer{width:320px;}
.drawer-head{
  display:flex;align-items:center;gap:10px;
  padding:20px 22px;
  border-bottom:1px solid var(--line);
}
.drawer-nav{padding:10px 12px 0;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--ink-600);
  border-radius:12px;
  transition:all var(--ease);
}
.drawer-nav a i{font-size:12px;color:var(--ink-400);}
.drawer-nav a:hover,.drawer-nav a.active{background:#FBF7F5;color:var(--brand-600);}
.drawer-foot{padding:18px 22px 26px;}
.drawer-foot .btn-nav-cta{width:100%;justify-content:center;}

/* ---------- 分类封面条 ---------- */
.cat-hero{
  position:relative;
  min-height:304px;
  display:flex;
  align-items:center;
  background-image:linear-gradient(90deg,rgba(42,11,22,.94) 0%,rgba(58,16,41,.80) 46%,rgba(20,10,18,.34) 100%),
                   url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  padding:52px 0;
}
.cat-hero .hero-inner{max-width:760px;}
.breadcrumb-custom{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(243,237,234,.72);
  margin-bottom:18px;
  padding:0;
}
.breadcrumb-custom a{color:rgba(243,237,234,.82);}
.breadcrumb-custom a:hover{color:var(--accent-300);}
.breadcrumb-custom .sep{opacity:.5;}
.cat-hero h1{
  color:#fff;
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.18;
  letter-spacing:.01em;
  margin-bottom:16px;
}
.hero-sub{
  color:rgba(243,237,234,.86);
  font-size:clamp(15px,1.5vw,18px);
  max-width:620px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.btn-main{
  display:inline-flex;align-items:center;gap:9px;
  padding:14px 26px;
  border-radius:999px;
  background:var(--grad-brand);
  color:#fff;font-size:15.5px;font-weight:600;
  border:0;
  transition:all var(--ease);
}
.btn-main:hover{color:#fff;filter:brightness(1.08);box-shadow:var(--sh-3);}
.btn-main:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 24px;
  border-radius:999px;
  border:1px solid rgba(243,237,234,.46);
  background:transparent;
  color:#F3EDEA;font-size:15.5px;font-weight:600;
  transition:all var(--ease);
}
.btn-ghost:hover{color:#fff;border-color:var(--accent-300);background:rgba(255,255,255,.08);}
@media (max-width:767.98px){
  .cat-hero{min-height:206px;padding:36px 0;}
  .hero-sub{font-size:15px;margin-bottom:20px;}
}

/* ---------- 分类说明 + 统计 ---------- */
.cat-intro{padding:76px 0 0;}
.intro-card{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  padding:34px 34px 30px;
  box-shadow:var(--sh-1);
}
.intro-card h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:16px;}
.intro-card p{font-size:15.5px;line-height:1.85;color:var(--ink-600);}
.intro-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;
  border-radius:999px;
  background:#FBF7F5;
  border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--brand-600);
}
.chip i{color:var(--accent-500);font-size:12px;}

.stat-panel{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  padding:26px;
  box-shadow:var(--sh-1);
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
}
.stat-badge{
  display:flex;align-items:center;gap:12px;
  padding:14px 16px;
  border-radius:var(--r-md);
  background:#FBF7F5;
  border:1px solid var(--line);
}
.stat-num{
  font-size:22px;font-weight:700;color:var(--brand-600);
  font-feature-settings:"tnum";
  font-variant-numeric:tabular-nums;
  line-height:1.1;
}
.stat-lab{font-size:13px;color:var(--ink-600);}
@media (max-width:575.98px){
  .stat-panel{grid-template-columns:1fr;}
  .intro-card{padding:24px 20px;}
}

/* ---------- 主体两栏 ---------- */
.cat-body{padding:56px 0 88px;}
.cat-layout{
  display:grid;
  grid-template-columns:240px minmax(0,1fr);
  gap:36px;
  align-items:start;
}
.anchor-box{
  position:sticky;
  top:96px;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px 20px;
  box-shadow:var(--sh-1);
}
.anchor-box h3{
  font-size:14px;
  letter-spacing:.14em;
  color:var(--ink-400);
  font-weight:600;
  margin-bottom:14px;
  text-transform:none;
}
.anchor-list li+li{margin-top:4px;}
.anchor-list a{
  display:block;
  padding:10px 14px;
  font-size:14.5px;
  font-weight:500;
  color:var(--ink-600);
  border-left:3px solid transparent;
  border-radius:0 10px 10px 0;
  transition:all var(--ease);
}
.anchor-list a:hover{
  color:var(--brand-600);
  background:#FBF7F5;
  border-left-color:var(--accent-500);
  transform:translateX(3px);
}
.anchor-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  margin-top:18px;
  height:46px;
  border-radius:12px;
  background:var(--grad-brand);
  color:#fff;font-size:14.5px;font-weight:600;
  transition:all var(--ease);
}
.anchor-cta:hover{color:#fff;filter:brightness(1.07);box-shadow:var(--sh-2);}

@media (max-width:1199.98px){
  .cat-layout{grid-template-columns:1fr;gap:24px;}
  .anchor-box{position:static;}
  .anchor-list{display:flex;flex-wrap:wrap;gap:8px;}
  .anchor-list li+li{margin-top:0;}
  .anchor-list a{border-left:0;border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:14px;}
  .anchor-list a:hover{transform:none;}
  .anchor-cta{max-width:240px;}
}

/* ---------- 卡片流 ---------- */
.stream-section+.stream-section{margin-top:52px;}
.section-head{margin-bottom:22px;}
.section-head h2{
  font-size:clamp(21px,2.3vw,26px);
  position:relative;
  padding-left:16px;
  margin-bottom:8px;
}
.section-head h2::before{
  content:"";
  position:absolute;left:0;top:.18em;bottom:.18em;
  width:4px;border-radius:4px;
  background:var(--grad-brand);
}
.section-head p{font-size:14.5px;color:var(--ink-600);padding-left:16px;}

.stream-list{display:flex;flex-direction:column;gap:22px;}
.stream-card{
  display:grid;
  grid-template-columns:264px minmax(0,1fr);
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.stream-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-3);
  border-color:#DED3CD;
}
.stream-thumb{
  position:relative;
  background:var(--grad-brand);
  overflow:hidden;
  min-height:186px;
}
.stream-thumb img{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
  transition:transform var(--ease);
}
.stream-thumb .thumb-fallback{
  position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.55);
  font-size:30px;
}
.stream-card:hover .stream-thumb img{transform:scale(1.04);}
.stream-content{padding:24px 26px;display:flex;flex-direction:column;}
.stream-meta{
  display:flex;align-items:center;gap:12px;
  font-size:13px;color:var(--ink-400);
  font-feature-settings:"tnum";
  margin-bottom:10px;
}
.badge-cat{
  display:inline-flex;align-items:center;
  padding:4px 12px;
  border-radius:999px;
  border:1px solid rgba(20,184,166,.5);
  background:rgba(20,184,166,.08);
  color:#0E8C7F;
  font-size:12px;font-weight:600;
}
.stream-content h3{
  font-size:19px;
  font-weight:600;
  line-height:1.45;
  margin-bottom:10px;
  transition:color var(--ease);
}
.stream-card:hover .stream-content h3{color:var(--brand-600);}
.stream-content .excerpt{
  font-size:15px;
  line-height:1.7;
  color:var(--ink-600);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:16px;
}
.stream-foot{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);
  padding-top:14px;
}
.stream-foot .more{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--brand-600);
}
.stream-foot .more i{transition:transform var(--ease);}
.stream-card:hover .stream-foot .more i{transform:translateX(4px);}
.stream-foot .stamp{font-size:13px;color:var(--ink-400);font-feature-settings:"tnum";}

@media (max-width:767.98px){
  .stream-card{grid-template-columns:1fr;}
  .stream-thumb{min-height:0;aspect-ratio:3/2;}
  .stream-thumb img{position:absolute;}
  .stream-content{padding:20px;}
  .stream-content h3{font-size:17px;}
}

/* ---------- 深色读法区 ---------- */
.read-guide{
  background:var(--bg-dark);
  padding:84px 0;
  margin-top:88px;
}
.rg-head{max-width:680px;margin-bottom:40px;}
.rg-head h2{color:#F7F1EE;font-size:clamp(23px,2.6vw,32px);margin-bottom:12px;}
.rg-head p{color:#B9AEB5;font-size:15.5px;}
.rg-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.rg-item{
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.09);
  border-radius:var(--r-lg);
  padding:26px 24px;
  transition:all var(--ease);
}
.rg-item:hover{
  background:rgba(255,255,255,.07);
  border-color:rgba(110,231,220,.35);
  transform:translateY(-4px);
}
.rg-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;
  border-radius:12px;
  background:linear-gradient(120deg,rgba(107,31,53,.9),rgba(20,184,166,.55));
  color:#fff;
  font-size:15px;font-weight:700;
  font-feature-settings:"tnum";
  margin-bottom:16px;
}
.rg-item h3{color:#F3EDEA;font-size:18px;font-weight:600;margin-bottom:10px;}
.rg-item p{color:#B9AEB5;font-size:14.5px;line-height:1.8;}
@media (max-width:991.98px){.rg-grid{grid-template-columns:1fr;}}

/* ---------- FAQ ---------- */
.faq-section{padding:88px 0;}
.faq-head{max-width:640px;margin-bottom:32px;}
.faq-head h2{font-size:clamp(23px,2.6vw,32px);margin-bottom:10px;}
.faq-head p{color:var(--ink-600);font-size:15px;}
.faq-acc .accordion-item{
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:var(--bg-1);
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.faq-acc .accordion-button{
  padding:20px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--ink-900);
  background:var(--bg-1);
  box-shadow:none;
  border-radius:var(--r-md);
  transition:all var(--ease);
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--brand-600);
  background:var(--bg-1);
  box-shadow:inset 4px 0 0 var(--accent-500);
}
.faq-acc .accordion-button:focus{box-shadow:none;}
.faq-acc .accordion-button:focus-visible{outline:2px solid var(--accent-500);outline-offset:-2px;}
.faq-acc .accordion-button::after{
  content:"+";
  background-image:none;
  width:auto;height:auto;
  font-size:22px;
  font-weight:400;
  line-height:1;
  color:var(--brand-600);
  transform:none;
  transition:transform var(--ease),color var(--ease);
  margin-left:16px;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  transform:rotate(45deg);
  color:var(--accent-500);
}
.faq-acc .accordion-body{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-600);
}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-xl);
  background:var(--grad-brand);
  padding:44px 42px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  box-shadow:var(--sh-3);
}
.cta-band::before{
  content:"";
  position:absolute;
  width:340px;height:340px;border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  top:-140px;right:-60px;
}
.cta-band::after{
  content:"";
  position:absolute;
  width:200px;height:200px;border-radius:50%;
  background:rgba(110,231,220,.14);
  bottom:-110px;left:-50px;
}
.cta-text{position:relative;z-index:1;max-width:620px;}
.cta-text h2{color:#fff;font-size:clamp(22px,2.5vw,30px);margin-bottom:10px;}
.cta-text p{color:rgba(255,255,255,.84);font-size:15px;margin:0;}
.cta-actions{position:relative;z-index:1;display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.btn-white{
  display:inline-flex;align-items:center;gap:9px;
  padding:14px 26px;
  border-radius:999px;
  background:#fff;
  color:var(--brand-700);
  font-size:15.5px;font-weight:700;
  transition:all var(--ease);
}
.btn-white:hover{color:var(--brand-600);box-shadow:0 12px 28px rgba(0,0,0,.22);transform:translateY(-2px);}
.share-group{display:flex;align-items:center;gap:10px;}
.share-btn{
  width:40px;height:40px;border-radius:999px;
  border:1px solid rgba(255,255,255,.6);
  background:transparent;
  color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  transition:all var(--ease);
}
.share-btn:hover{background:#fff;color:var(--brand-600);border-color:#fff;}
@media (max-width:991.98px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 26px;}
}
.cta-wrap{padding:0 0 88px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-dark);
  padding:72px 0 0;
  color:#B9AEB5;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-main{color:#F3EDEA;}
.footer-brand .brand-sub{color:#8A7E85;}
.footer-about p{font-size:14px;line-height:1.8;color:#B9AEB5;margin-bottom:14px;}
.footer-domain{
  font-size:13px;
  color:#8A7E85;
  letter-spacing:.04em;
  font-feature-settings:"tnum";
}
.site-footer h4{
  font-size:14px;
  font-weight:600;
  color:#F3EDEA;
  margin-bottom:18px;
}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{
  font-size:14px;
  color:#B9AEB5;
  transition:all var(--ease);
}
.footer-links a:hover{color:var(--accent-300);transform:translateX(3px);}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  font-size:13px;
  color:#8A7E85;
}
.footer-bottom a{color:#B9AEB5;}
.footer-bottom a:hover{color:var(--accent-300);}
@media (max-width:575.98px){
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category2 */
:root{
  --brand-900:#2A0B16;
  --brand-700:#4A1226;
  --brand-600:#6B1F35;
  --brand-500:#8A2A44;
  --accent-500:#14B8A6;
  --accent-300:#6EE7DC;
  --amber-500:#F5A524;
  --bg-0:#F7F4F1;
  --bg-1:#FFFFFF;
  --bg-dark:#140A12;
  --ink-900:#1A1016;
  --ink-600:#5A4F56;
  --ink-400:#8A7E85;
  --line:#E7E0DA;
  --grad-brand:linear-gradient(120deg,#6B1F35 0%,#3A1029 58%,#14B8A6 145%);
  --sh-1:0 1px 2px rgba(26,16,22,.06);
  --sh-2:0 10px 30px rgba(107,31,53,.10);
  --sh-3:0 18px 46px rgba(107,31,53,.16);
  --radius:20px;
  --radius-lg:28px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink-900);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .3s var(--ease);}
a:hover{color:var(--accent-500);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink-900);line-height:1.22;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.container{max-width:1320px;}}

.num{font-feature-settings:"tnum";font-variant-numeric:tabular-nums;}

/* ============ 顶部信息条 ============ */
.topbar{
  background:var(--bg-dark);
  color:#B9AEB5;
  font-size:13px;
  min-height:38px;
  display:flex;
  align-items:center;
}
.topbar-inner{
  display:flex;
  align-items:center;
  gap:18px;
  min-height:38px;
}
.topbar-domain{
  color:#F3EDEA;
  letter-spacing:.3px;
  font-weight:600;
  white-space:nowrap;
}
.topbar-tip{
  flex:1;
  text-align:center;
  color:#B9AEB5;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar-actions{display:flex;gap:16px;white-space:nowrap;}
.topbar-actions a{color:#B9AEB5;font-size:13px;}
.topbar-actions a:hover{color:var(--accent-300);}
@media (max-width:767.98px){
  .topbar-tip{display:none;}
  .topbar-actions a:nth-child(2){display:none;}
}

/* ============ 主导航 ============ */
.site-nav{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.site-nav .navbar{min-height:72px;display:flex;align-items:center;gap:20px;}

.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:14px;
  background:var(--grad-brand);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:18px;box-shadow:var(--sh-2);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:16px;font-weight:700;color:var(--ink-900);letter-spacing:.2px;}
.brand-sub{font-size:12px;color:var(--ink-400);letter-spacing:3px;}

.nav-links{display:none;align-items:center;gap:26px;margin-left:14px;}
@media (min-width:992px){.nav-links{display:flex;}}
.nav-link-custom{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:var(--ink-600);
  white-space:nowrap;
}
.nav-link-custom::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-4px;height:3px;
  border-radius:3px;background:var(--grad-brand);
  transform:scaleX(0);transform-origin:left;
  transition:transform .35s var(--ease);
}
.nav-link-custom:hover{color:var(--brand-600);}
.nav-link-custom:hover::after{transform:scaleX(1);}
.nav-link-custom.active{color:var(--brand-600);font-weight:600;}
.nav-link-custom.active::after{transform:scaleX(1);}

.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink-600);
  display:flex;align-items:center;justify-content:center;
  transition:all .3s var(--ease);
}
.icon-btn:hover{color:var(--brand-600);border-color:var(--brand-500);box-shadow:var(--sh-2);}
.btn-nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 20px;border-radius:999px;
  background:var(--grad-brand);color:#fff;font-size:15px;font-weight:600;
  border:none;box-shadow:var(--sh-2);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),filter .3s var(--ease);
}
.btn-nav-cta:hover{color:#fff;filter:brightness(1.06);box-shadow:var(--sh-3);transform:translateY(-1px);}
.btn-nav-cta:active{transform:translateY(1px);}
.navbar-toggler-custom{
  margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink-900);font-size:18px;
}
@media (max-width:575.98px){
  .icon-btn{display:none;}
  .btn-nav-cta span.cta-text{display:none;}
}

/* ============ Offcanvas 抽屉 ============ */
.offcanvas.drawer{
  background:var(--bg-1);
  width:320px;
  border:none;
}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 20px 16px;border-bottom:1px solid var(--line);
}
.drawer-list{margin-top:8px;}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;padding:0 20px;
  font-size:15px;color:var(--ink-900);font-weight:500;
  border-bottom:1px solid var(--line);
}
.drawer-list a i{color:var(--ink-400);font-size:13px;transition:transform .3s var(--ease);}
.drawer-list a:hover{color:var(--brand-600);background:#FBF8F6;}
.drawer-list a:hover i{transform:translateX(3px);color:var(--brand-600);}
.drawer-list a.active{color:var(--brand-600);}
.drawer-foot{padding:22px 20px;}
.drawer-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;height:48px;border-radius:12px;
  background:var(--grad-brand);color:#fff;font-weight:600;
}
.drawer-cta:hover{color:#fff;filter:brightness(1.06);}

/* ============ 分类封面条 ============ */
.page-banner{
  position:relative;
  overflow:hidden;
  background:var(--brand-900);
  min-height:300px;
  display:flex;
  align-items:flex-end;
}
.banner-media{position:absolute;inset:0;}
.banner-media img{width:100%;height:100%;object-fit:cover;opacity:.9;}
.banner-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(42,11,22,.95) 0%,rgba(58,16,41,.80) 46%,rgba(107,31,53,.30) 100%);
}
.banner-veil-fallback{
  position:absolute;inset:0;background:var(--grad-brand);
}
.banner-inner{position:relative;z-index:2;padding:64px 20px 54px;color:#fff;width:100%;}
.crumb{margin-bottom:18px;}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);}
.crumb li+li::before{content:"/";margin-right:8px;color:rgba(255,255,255,.45);}
.crumb a{color:rgba(255,255,255,.82);}
.crumb a:hover{color:var(--accent-300);}
.badge-cat{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  color:#fff;background:rgba(255,255,255,.14);
  border:1px solid rgba(110,231,220,.55);
  backdrop-filter:blur(4px);
}
.page-banner h1{
  color:#fff;
  font-size:clamp(30px,4.2vw,50px);
  font-weight:700;line-height:1.18;
  margin:16px 0 14px;
  letter-spacing:.5px;
  text-shadow:0 2px 18px rgba(20,10,18,.4);
}
.banner-sub{
  max-width:640px;
  font-size:16px;line-height:1.7;
  color:rgba(255,255,255,.86);
}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.banner-tags span{
  padding:5px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  color:rgba(255,255,255,.9);background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.22);
}
@media (max-width:767.98px){
  .page-banner{min-height:210px;}
  .banner-inner{padding:38px 20px 34px;}
  .banner-sub{font-size:14.5px;}
}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section-sm{padding:72px 0;}
@media (max-width:991.98px){.section{padding:72px 0;}.section-sm{padding:56px 0;}}
@media (max-width:767.98px){.section{padding:56px 0;}.section-sm{padding:48px 0;}}

.section-head{margin-bottom:40px;max-width:760px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-600);
  letter-spacing:1px;margin-bottom:12px;
}
.section-head .eyebrow::before{
  content:"";width:22px;height:3px;border-radius:3px;background:var(--grad-brand);
}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  line-height:1.25;
}
.section-head p{
  margin-top:14px;font-size:15px;line-height:1.8;color:var(--ink-600);
}

/* ============ 说明 + 统计徽章 ============ */
.intro-panel{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:36px;
  box-shadow:var(--sh-1);
}
@media (max-width:767.98px){.intro-panel{padding:24px;}}
.intro-panel p{font-size:16px;line-height:1.85;color:var(--ink-600);}
.intro-panel p + p{margin-top:18px;}
.intro-points{margin-top:26px;display:grid;gap:14px;}
@media (min-width:768px){.intro-points{grid-template-columns:1fr 1fr;}}
.intro-points li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--ink-600);line-height:1.7;
}
.intro-points li i{
  flex-shrink:0;margin-top:5px;color:var(--accent-500);font-size:15px;
}

.stat-row{
  display:grid;gap:16px;margin-top:28px;
  grid-template-columns:repeat(2,minmax(0,1fr));
}
@media (min-width:992px){.stat-row{grid-template-columns:repeat(4,minmax(0,1fr));}}
.stat-badge{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:16px;
  padding:18px 20px;
  display:flex;align-items:baseline;gap:10px;
  box-shadow:var(--sh-1);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.stat-badge:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#DCD2CB;}
.stat-badge .v{
  font-size:26px;font-weight:700;color:var(--amber-500);
  font-feature-settings:"tnum";
}
.stat-badge .u{font-size:13px;color:var(--ink-400);}
.stat-badge .l{font-size:13px;color:var(--ink-600);margin-left:auto;}

/* ============ 筛选条 ============ */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:18px;
  padding:14px 18px;
  box-shadow:var(--sh-1);
  margin-bottom:38px;
}
.filter-label{
  font-size:13px;font-weight:600;color:var(--ink-400);
  letter-spacing:1px;white-space:nowrap;
}
.filter-chips{display:flex;flex-wrap:wrap;gap:10px;flex:1;}
.chip{
  height:38px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line);background:#FBF8F6;
  color:var(--ink-600);font-size:14px;font-weight:600;
  cursor:pointer;
  transition:all .3s var(--ease);
}
.chip:hover{color:var(--brand-600);border-color:var(--brand-500);transform:translateY(-2px);}
.chip.is-active{
  background:var(--grad-brand);color:#fff;border-color:transparent;
  box-shadow:var(--sh-2);
}
.filter-sort{margin-left:auto;}
.sort-select{
  height:44px;min-width:172px;
  border:1px solid var(--line);border-radius:12px;
  font-size:14px;color:var(--ink-600);
  background-color:#fff;
  box-shadow:none;
}
.sort-select:focus{border-color:var(--accent-500);box-shadow:0 0 0 3px rgba(20,184,166,.18);}
@media (max-width:767.98px){
  .filter-sort{width:100%;margin-left:0;}
  .sort-select{width:100%;}
}

/* ============ 双列错落瀑布流 ============ */
.masonry{display:grid;grid-template-columns:1fr;gap:28px;}
@media (min-width:768px){
  .masonry{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
  .masonry .m-col-b{margin-top:48px;}
}
.m-col{display:flex;flex-direction:column;gap:28px;}

.rcard{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.rcard:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:#DED4CD;}
.rcard-media{
  position:relative;display:block;
  aspect-ratio:3/2;overflow:hidden;
  background:var(--grad-brand);
}
.rcard-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .45s var(--ease);
}
.rcard:hover .rcard-media img{transform:scale(1.04);}
.rcard-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(42,11,22,.05) 0%,rgba(42,11,22,.42) 100%);
}
.rcard-badge{
  position:absolute;left:16px;bottom:14px;z-index:2;
  padding:5px 13px;border-radius:999px;
  font-size:12.5px;font-weight:600;color:#fff;
  background:rgba(42,11,22,.55);
  border:1px solid rgba(110,231,220,.55);
  backdrop-filter:blur(4px);
}
.rcard-body{padding:22px 22px 20px;}
.rcard-meta{
  display:flex;align-items:center;gap:12px;
  font-size:13px;color:var(--ink-400);margin-bottom:12px;
}
.rcard-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.rcard-title{font-size:19px;font-weight:600;line-height:1.45;}
.rcard-title a{color:var(--ink-900);}
.rcard:hover .rcard-title a{color:var(--brand-600);}
.rcard-desc{
  margin-top:12px;font-size:14.5px;line-height:1.75;color:var(--ink-600);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rcard-stats{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
}
.stat-pill{
  display:inline-flex;align-items:baseline;gap:6px;
  padding:5px 13px;border-radius:999px;
  background:#FBF8F6;border:1px solid var(--line);
  font-size:12.5px;color:var(--ink-600);
}
.stat-pill b{
  font-size:15px;color:var(--brand-600);font-weight:700;
  font-feature-settings:"tnum";
}
.rcard-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:16px;font-size:13px;color:var(--ink-400);
}
.rcard-foot i{transition:transform .3s var(--ease);}
.rcard:hover .rcard-foot i{transform:translateX(4px);color:var(--brand-600);}

/* ============ 口径说明 ============ */
.caliber-grid{display:grid;gap:22px;}
@media (min-width:768px){.caliber-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.caliber-card{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.caliber-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.caliber-card .idx{
  font-size:13px;font-weight:700;color:var(--brand-500);
  letter-spacing:2px;margin-bottom:14px;display:block;
}
.caliber-card h3{font-size:18px;font-weight:600;margin-bottom:10px;}
.caliber-card p{font-size:14.5px;line-height:1.8;color:var(--ink-600);}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item-custom{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:16px !important;
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.accordion-item-custom:hover{box-shadow:var(--sh-2);}
.accordion-item-custom .accordion-button{
  background:var(--bg-1);
  color:var(--ink-900);
  font-size:16px;font-weight:600;
  padding:20px 22px;
  border:none;box-shadow:none;
  display:flex;align-items:center;gap:14px;
}
.accordion-item-custom .accordion-button:not(.collapsed){
  color:var(--brand-600);
  background:var(--bg-1);
  box-shadow:none;
  border-left:4px solid var(--accent-500);
}
.accordion-item-custom .accordion-button::after{
  content:"\f067";
  font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;
  background-image:none;
  color:var(--brand-500);
  width:auto;height:auto;
  transform:none;
  margin-left:auto;
  transition:transform .35s var(--ease),color .35s var(--ease);
}
.accordion-item-custom .accordion-button:not(.collapsed)::after{
  transform:rotate(45deg);color:var(--accent-500);
}
.accordion-item-custom .accordion-button:focus{box-shadow:none;}
.accordion-item-custom .accordion-body{
  padding:0 22px 22px;
  font-size:15px;line-height:1.85;color:var(--ink-600);
}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--grad-brand);
  border-radius:var(--radius-lg);
  padding:44px 40px;
  color:#fff;
  display:flex;flex-wrap:wrap;align-items:center;gap:26px;
  box-shadow:var(--sh-3);
}
.cta-band::before,
.cta-band::after{
  content:"";position:absolute;border-radius:50%;
  background:rgba(255,255,255,.09);pointer-events:none;
}
.cta-band::before{width:320px;height:320px;right:-90px;top:-140px;}
.cta-band::after{width:180px;height:180px;right:150px;bottom:-110px;background:rgba(110,231,220,.12);}
.cta-copy{position:relative;z-index:2;flex:1 1 320px;}
.cta-copy h2{color:#fff;font-size:clamp(22px,2.6vw,30px);}
.cta-copy p{margin-top:12px;font-size:15px;line-height:1.75;color:rgba(255,255,255,.85);}
.cta-actions{position:relative;z-index:2;display:flex;flex-direction:column;gap:16px;align-items:flex-start;}
.btn-main{
  display:inline-flex;align-items:center;gap:9px;
  height:50px;padding:0 28px;border-radius:999px;
  background:#fff;color:var(--brand-700);font-size:16px;font-weight:700;
  border:none;box-shadow:0 12px 30px rgba(20,10,18,.28);
  transition:transform .3s var(--ease),filter .3s var(--ease),box-shadow .3s var(--ease);
}
.btn-main:hover{color:var(--brand-700);transform:translateY(-2px);box-shadow:0 18px 40px rgba(20,10,18,.34);}
.btn-main:active{transform:translateY(1px);}
.share-group{display:flex;gap:10px;}
.share-btn{
  width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.6);
  color:#fff;background:transparent;font-size:15px;
  transition:all .3s var(--ease);
}
.share-btn:hover{background:#fff;color:var(--brand-600);border-color:#fff;transform:translateY(-2px);}
@media (max-width:767.98px){
  .cta-band{padding:32px 22px;}
  .cta-actions{width:100%;align-items:stretch;}
  .btn-main{justify-content:center;}
  .share-group{justify-content:center;}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-dark);
  color:#B9AEB5;
  padding:72px 0 0;
  margin-top:96px;
}
@media (max-width:767.98px){.site-footer{padding-top:52px;margin-top:56px;}}
.site-footer h4{
  font-size:14px;font-weight:600;color:#F3EDEA;
  margin-bottom:18px;letter-spacing:.6px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-main{color:#F3EDEA;}
.footer-brand .brand-sub{color:#8A7E85;}
.footer-about p{font-size:14px;line-height:1.85;color:#B9AEB5;}
.footer-domain{
  margin-top:14px;font-size:13px;color:#8A7E85;letter-spacing:.5px;
}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{
  font-size:14px;color:#B9AEB5;
  transition:color .3s var(--ease),transform .3s var(--ease);
  display:inline-block;
}
.footer-links a:hover{color:var(--accent-300);transform:translateX(3px);}
.footer-bottom{
  margin-top:52px;
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:#8A7E85;
}
.footer-bottom a{color:#8A7E85;}
.footer-bottom a:hover{color:var(--accent-300);}