/* roulang page: index */
:root{
  --ink:#0B0C0F;
  --ink-deep:#08090B;
  --panel:#15171C;
  --panel-2:#101216;
  --line:#2A2E36;
  --line-soft:rgba(246,243,238,.08);
  --paper:#F6F3EE;
  --muted:#9AA0AA;
  --amber:#E9A13B;
  --amber-hover:#F2B85C;
  --amber-press:#C7842A;
  --teal:#6FD3C7;
  --teal-deep:#2F6F6B;
  --danger:#E5555A;
  --radius-s:10px;
  --radius:16px;
  --radius-l:22px;
  --shadow-amber:0 10px 24px rgba(233,161,59,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --cond:'Archivo','Barlow Condensed','Noto Sans SC',sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .24s var(--ease)}
a:hover{color:var(--amber)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:900;letter-spacing:-.02em;line-height:1.12}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px}
::selection{background:var(--amber);color:var(--ink)}
/* 覆盖 Foundation 默认蓝 */
a,a:hover,a:focus{color:inherit}
a:hover,a:focus{color:var(--amber)}
.button,.button:hover,.button:focus{background:none;color:inherit}
.accordion-title{color:var(--paper)}
.accordion-title:hover{color:var(--amber)}
.accordion-content{background:transparent;color:var(--paper)}
.grid-container{max-width:1280px;padding-left:24px;padding-right:24px;margin:0 auto}
.grid-container.full{padding-left:0;padding-right:0}
.section{padding:96px 0;position:relative;border-top:1px solid var(--line-soft)}
.section:first-of-type{border-top:0}
.section--tint{background:#0E1015}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-title{font-size:clamp(24px,3.2vw,40px);font-weight:900}
.section-sub{margin-top:10px;color:var(--muted);font-size:15px;max-width:640px}
.section-more{white-space:nowrap;font-size:14px;color:var(--amber);display:inline-flex;align-items:center;gap:8px}
.section-more i{transition:transform .24s var(--ease);font-size:12px}
.section-more:hover i{transform:translateX(4px)}
.eyebrow{font-family:var(--cond);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--teal)}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--ink-deep);border-bottom:1px solid var(--line);height:38px;font-size:12px}
.topbar__inner{display:flex;align-items:center;gap:20px;height:38px}
.topbar__domain{font-family:var(--cond);letter-spacing:.1em;color:var(--muted)}
.topbar__domain:hover{color:var(--paper)}
.topbar__notice{flex:1;display:flex;align-items:center;gap:8px;color:var(--muted);overflow:hidden;white-space:nowrap}
.topbar__notice .dot{width:6px;height:6px;border-radius:50%;background:var(--teal);flex:0 0 auto;box-shadow:0 0 0 3px rgba(111,211,199,.16)}
.topbar__notice button{margin-left:8px;color:#6C727C;font-size:12px;line-height:1}
.topbar__notice button:hover{color:var(--amber)}
.topbar__actions{display:flex;align-items:center;gap:16px}
.topbar__actions a{color:var(--muted)}
.topbar__actions a:hover{color:var(--paper)}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  transition:background-color .3s var(--ease),border-color .3s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.scrolled{background:var(--ink);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;height:74px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand__mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--amber),var(--amber-press));
  display:grid;place-items:center;color:var(--ink);font-weight:900;font-size:17px;letter-spacing:-.04em;
}
.brand__text{display:flex;flex-direction:column;line-height:1}
.brand__main{font-size:19px;font-weight:900;letter-spacing:-.01em}
.brand__sub{font-size:11px;letter-spacing:.2em;color:var(--muted);margin-top:4px;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{
  position:relative;font-size:14.5px;letter-spacing:.02em;color:#C9CDD4;
  padding:10px 14px;border-radius:8px;transition:color .24s var(--ease),background-color .24s var(--ease);
}
.main-nav a:hover{color:var(--paper);background:rgba(246,243,238,.05)}
.main-nav a.active{color:var(--paper);font-weight:700}
.main-nav a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--amber);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  color:#C9CDD4;border:1px solid transparent;transition:all .24s var(--ease);
}
.icon-btn:hover{color:var(--amber);border-color:var(--line);background:rgba(246,243,238,.04)}
.hamburger{display:none}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:999px;font-size:14.5px;font-weight:700;
  letter-spacing:.02em;transition:all .24s var(--ease);white-space:nowrap;border:1px solid transparent;
}
.btn--primary{background:var(--amber);color:var(--ink)}
.btn--primary:hover{background:var(--amber-hover);color:var(--ink);transform:translateY(-1px);box-shadow:var(--shadow-amber)}
.btn--primary:active{background:var(--amber-press);transform:translateY(0)}
.btn--ghost{border-color:rgba(246,243,238,.24);color:var(--paper)}
.btn--ghost:hover{border-color:var(--amber);color:var(--amber)}
.btn--sm{height:38px;padding:0 20px;font-size:13px}
.nav-drawer{
  display:none;position:fixed;inset:0 0 0 auto;width:min(84vw,340px);background:var(--ink-deep);
  border-left:1px solid var(--line);z-index:90;padding:24px;transform:translateX(100%);
  transition:transform .24s var(--ease);overflow-y:auto;
}
.nav-drawer.open{transform:translateX(0);display:block}
.nav-drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.nav-drawer a{display:block;padding:14px 4px;border-bottom:1px solid var(--line-soft);font-size:16px;color:#D6D9DE}
.nav-drawer a.active{color:var(--amber);font-weight:700}
.drawer-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.72);z-index:80;display:none}
.drawer-backdrop.open{display:block}

/* ============ Hero ============ */
.hero{position:relative;min-height:84vh;display:flex;align-items:flex-end;overflow:hidden;margin-top:-74px;padding-top:74px}
.hero__bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center 30%}
.hero__mask{position:absolute;inset:0;background:
  linear-gradient(90deg,rgba(11,12,15,.96) 0%,rgba(11,12,15,.78) 42%,rgba(11,12,15,.28) 100%),
  linear-gradient(180deg,rgba(11,12,15,.72) 0%,rgba(11,12,15,.12) 38%,rgba(11,12,15,.98) 100%)}
.hero__inner{position:relative;z-index:2;width:100%;padding:120px 0 72px}
.hero__badge{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:6px;
  background:var(--amber);color:var(--ink);font-size:12px;font-weight:900;letter-spacing:.08em;
}
.hero__title{font-size:clamp(38px,7vw,86px);font-weight:900;line-height:1.06;letter-spacing:-.02em;margin:22px 0 18px;max-width:15em}
.hero__title em{font-style:normal;color:var(--amber);display:block}
.hero__sub{font-size:clamp(15px,1.4vw,18px);color:#C9CDD4;max-width:620px;line-height:1.8}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero__meta{display:flex;flex-wrap:wrap;gap:36px;margin-top:44px;padding-top:22px;border-top:1px solid var(--line-soft)}
.hero__meta div{display:flex;flex-direction:column;gap:4px}
.hero__meta .num{font-family:var(--cond);font-size:26px;font-weight:700;color:var(--paper);letter-spacing:.02em}
.hero__meta .lbl{font-size:12px;color:var(--muted);letter-spacing:.1em}
.hero__thumbs{display:flex;gap:14px;margin-top:44px;flex-wrap:wrap}
.hero__thumbs figure{
  width:150px;margin:0;border-radius:12px;overflow:hidden;border:1px solid var(--line-soft);
  background:var(--panel);transition:all .3s var(--ease);
}
.hero__thumbs figure:hover{border-color:rgba(233,161,59,.6);transform:translateY(-3px)}
.hero__thumbs img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ============ 横滑片库 ============ */
.rail{position:relative}
.rail__track{
  display:flex;gap:20px;overflow-x:auto;padding:4px 4px 22px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;scrollbar-width:thin;
}
.rail__track::-webkit-scrollbar{height:6px}
.rail__track::-webkit-scrollbar-track{background:#12141A;border-radius:99px}
.rail__track::-webkit-scrollbar-thumb{background:#333944;border-radius:99px}
.rail__track::-webkit-scrollbar-thumb:hover{background:var(--amber-press)}
.rail__item{flex:0 0 calc((100% - 60px)/4.2);scroll-snap-align:start}
.card{
  background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--radius);
  overflow:hidden;transition:all .3s var(--ease);height:100%;display:flex;flex-direction:column;
}
.card:hover{border-color:rgba(233,161,59,.6);transform:translateY(-3px)}
.card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0E1015}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.card:hover .card__media img{transform:scale(1.04)}
.card__badge{
  position:absolute;top:12px;left:12px;height:24px;padding:0 10px;border-radius:6px;
  background:rgba(11,12,15,.78);border:1px solid var(--teal);color:var(--teal);
  font-size:11px;letter-spacing:.08em;display:inline-flex;align-items:center;
}
.card__badge--amber{background:var(--amber);border-color:var(--amber);color:var(--ink);font-weight:800}
.card__body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.card__title{font-size:17px;font-weight:800;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__sub{font-size:13px;color:var(--muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--line-soft);display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted)}
.card__foot .time{font-family:var(--cond);letter-spacing:.06em}

/* ============ 热播推荐 ============ */
.hot{display:grid;grid-template-columns:2fr 1fr;gap:24px;align-items:stretch}
.hot__main{
  border:1px solid var(--line-soft);border-radius:var(--radius-l);overflow:hidden;background:var(--panel);
  display:flex;flex-direction:column;transition:all .3s var(--ease);
}
.hot__main:hover{border-color:rgba(233,161,59,.6)}
.hot__media{position:relative;aspect-ratio:21/9;overflow:hidden;background:#0E1015}
.hot__media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.hot__main:hover .hot__media img{transform:scale(1.03)}
.hot__body{padding:26px 28px 30px}
.hot__body h3{font-size:clamp(20px,2.2vw,28px);margin-bottom:12px}
.hot__body p{color:var(--muted);font-size:15px;line-height:1.8}
.hot__body .btn{margin-top:22px}
.rank{background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--radius-l);padding:24px 22px}
.rank__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line-soft)}
.rank__head h3{font-size:18px}
.rank__head span{font-family:var(--cond);font-size:12px;color:var(--muted);letter-spacing:.14em}
.rank__item{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--line-soft)}
.rank__item:last-child{border-bottom:0;padding-bottom:0}
.rank__no{font-family:var(--cond);font-size:22px;font-weight:700;color:#3A4048;line-height:1;flex:0 0 auto;transition:color .24s var(--ease)}
.rank__item:hover .rank__no{color:var(--amber)}
.rank__txt h4{font-size:15.5px;font-weight:700;line-height:1.4}
.rank__txt span{font-size:12px;color:var(--teal);letter-spacing:.06em}

/* ============ 最新信息（CMS） ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;min-height:200px}
.news-card{
  background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:all .3s var(--ease);
}
.news-card:hover{border-color:rgba(233,161,59,.6);transform:translateY(-3px)}
.news-card__media{aspect-ratio:16/9;overflow:hidden;background:#0E1015}
.news-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.news-card:hover .news-card__media img{transform:scale(1.04)}
.news-card__body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-card__body h3{font-size:17px;font-weight:800;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__body .sum{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-card__foot{margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted)}
.news-card__foot .time{font-family:var(--cond);letter-spacing:.06em}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;
  border:1px solid var(--teal);color:var(--teal);font-size:11px;letter-spacing:.08em;width:fit-content;
}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:56px 24px;border:1px dashed var(--line);border-radius:var(--radius);background:#0E1015;text-align:center;
}
.empty-state i{color:var(--teal);font-size:26px}
.empty-state p{color:var(--muted);font-size:15px;margin:0}

/* ============ 片单分区 ============ */
.playlist{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.playlist__item{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);
  padding:28px 26px;display:flex;flex-direction:column;gap:16px;transition:all .3s var(--ease);
}
.playlist__item:nth-child(2),.playlist__item:nth-child(4){transform:translateY(32px)}
.playlist__item:hover{border-color:rgba(233,161,59,.6);background:#191C22}
.playlist__top{display:flex;align-items:center;gap:14px}
.playlist__no{font-family:var(--cond);font-size:30px;font-weight:700;color:var(--amber);line-height:1}
.playlist__item h3{font-size:20px}
.playlist__item p{color:var(--muted);font-size:14.5px;line-height:1.8}
.strips{display:flex;flex-direction:column;gap:10px}
.strips li{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:10px 14px;border-radius:var(--radius-s);background:#0E1015;border:1px solid var(--line-soft);font-size:14px;
}
.strips li:hover{border-color:rgba(111,211,199,.5)}
.strips li span:last-child{font-family:var(--cond);font-size:12px;color:var(--muted);letter-spacing:.08em}

/* ============ CTA 带 ============ */
.cta-band{position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-band__bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center}
.cta-band__mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,9,11,.94),rgba(8,9,11,.72))}
.cta-band__inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center;padding:80px 0}
.cta-band h2{font-size:clamp(24px,3.2vw,40px);margin-bottom:16px}
.cta-band p{color:#C9CDD4;font-size:15.5px;max-width:520px}
.subscribe{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-l);padding:28px}
.subscribe label{display:block;font-size:13px;color:var(--muted);margin-bottom:10px;letter-spacing:.06em}
.subscribe__row{display:flex;gap:12px}
.subscribe input{
  flex:1;height:48px;padding:0 16px;border-radius:10px;background:var(--panel-2);
  border:1px solid var(--line);color:var(--paper);font-size:15px;transition:all .24s var(--ease);
}
.subscribe input::placeholder{color:#6C727C}
.subscribe input:focus{outline:none;border-color:var(--amber);box-shadow:0 0 0 3px rgba(233,161,59,.18)}
.subscribe .hint{margin-top:14px;font-size:12px;color:#6C727C;line-height:1.7}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion{border-top:1px solid var(--line-soft);background:transparent}
.accordion-item{border-bottom:1px solid var(--line-soft);background:transparent}
.accordion-title{
  padding:22px 46px 22px 0;font-size:16px;font-weight:700;color:var(--paper);
  border:0;background:transparent;position:relative;transition:color .24s var(--ease);
}
.accordion-title:hover{color:var(--amber)}
.accordion-title::before{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;color:var(--amber);
  position:absolute;right:8px;top:50%;transform:translateY(-50%);transition:transform .28s var(--ease);
}
.accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg)}
.accordion-content{padding:0 40px 24px 0;border:0;font-size:15px;line-height:1.85;color:var(--muted);background:transparent}
.accordion-content p{color:var(--muted)}

/* ============ 相关分类互链 ============ */
.links-band{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.links-band a{
  border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px;background:var(--panel);
  display:flex;flex-direction:column;gap:8px;transition:all .3s var(--ease);
}
.links-band a:hover{border-color:var(--amber);transform:translateY(-3px)}
.links-band strong{font-size:16.5px;font-weight:800}
.links-band span{font-size:13px;color:var(--muted);line-height:1.7}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);border-top:1px solid var(--line);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-title{font-size:14px;color:var(--amber);font-weight:800;letter-spacing:.08em;margin-bottom:18px}
.footer-brand p{color:var(--muted);font-size:13.5px;line-height:1.85;margin-bottom:14px}
.footer-domain{font-family:var(--cond);font-size:13px;color:#6C727C;letter-spacing:.1em}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:13px;color:#9AA0AA;display:inline-block;transition:all .24s var(--ease)}
.footer-links a:hover{color:var(--paper);transform:translateX(2px)}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:#6C727C;
}
.footer-bottom .to-top{display:inline-flex;align-items:center;gap:8px;color:var(--muted)}
.footer-bottom .to-top:hover{color:var(--amber)}

/* ============ 动效 ============ */
.reveal-up{opacity:0;transform:translateY(12px);animation:rise .42s var(--ease) forwards}
@keyframes rise{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  .reveal-up{animation:none;opacity:1;transform:none}
  html{scroll-behavior:auto}
  *{transition-duration:.01ms !important}
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .rail__item{flex:0 0 calc((100% - 40px)/3.05)}
  .hot{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:1023px){
  .grid-container{padding-left:20px;padding-right:20px}
  .main-nav{display:none}
  .hamburger{display:grid}
  .header-actions .btn--primary{display:none}
  .hero{min-height:64vh}
  .hero__inner{padding:96px 0 56px}
  .section{padding:72px 0}
  .cta-band__inner{grid-template-columns:1fr;gap:32px;padding:64px 0}
  .playlist__item:nth-child(2),.playlist__item:nth-child(4){transform:none}
  .links-band{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  .topbar__notice{display:none}
  .news-grid{grid-template-columns:1fr}
  .rail__item{flex:0 0 calc((100% - 20px)/2.2)}
  .hot__body{padding:22px 20px 24px}
  .rank{padding:20px 18px}
  .playlist{grid-template-columns:1fr;gap:20px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
}
@media (max-width:519px){
  .grid-container{padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .hero{min-height:58vh}
  .hero__title{font-size:clamp(30px,9vw,42px)}
  .hero__meta{gap:22px}
  .hero__thumbs figure{width:calc((100% - 14px)/2)}
  .news-grid{grid-template-columns:1fr}
  .rail__item{flex:0 0 84%}
  .subscribe__row{flex-direction:column}
  .subscribe .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .links-band{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --bg:#0B0C0F;
  --bg-deep:#08090B;
  --panel:#15171C;
  --line:#2A2E36;
  --paper:#F6F3EE;
  --muted:#9AA0AA;
  --brand:#E9A13B;
  --brand-hover:#F2B85C;
  --brand-press:#C7842A;
  --celadon:#6FD3C7;
  --celadon-deep:#2F6F6B;
  --danger:#E5555A;
  --ink:#16181C;
  --radius:16px;
  --radius-sm:10px;
  --shadow-cta:0 10px 24px rgba(233,161,59,.24);
  --font-cn:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --font-num:'Archivo','Barlow Condensed',sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
  --pad-y:96px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--paper);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
figure{margin:0}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}

.grid-container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding-left:96px;
  padding-right:96px;
}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--bg-deep);
  border-bottom:1px solid var(--line);
  height:38px;
  font-size:12px;
  color:var(--muted);
}
.topbar__inner{
  height:38px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.topbar__domain{
  font-family:var(--font-num);
  letter-spacing:.06em;
  color:var(--muted);
  transition:color .2s var(--ease);
  white-space:nowrap;
}
.topbar__domain:hover{color:var(--paper)}
.topbar__notice{
  display:flex;
  align-items:center;
  gap:10px;
  color:#C9CDD4;
  flex:1;
  justify-content:center;
}
.topbar__notice .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--celadon);
  box-shadow:0 0 0 3px rgba(111,211,199,.16);
  flex:none;
}
.topbar__close{
  color:var(--muted);
  font-size:14px;
  line-height:1;
  padding:2px 4px;
  transition:color .2s var(--ease);
}
.topbar__close:hover{color:var(--brand)}
.topbar__actions{
  display:flex;
  align-items:center;
  gap:14px;
  white-space:nowrap;
}
.topbar__link{color:var(--muted);transition:color .2s var(--ease)}
.topbar__link:hover{color:var(--paper)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 26px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--brand);color:#0B0C0F}
.btn--primary:hover{background:var(--brand-hover);transform:translateY(-1px);box-shadow:var(--shadow-cta)}
.btn--primary:active{background:var(--brand-press);transform:translateY(0);box-shadow:none}
.btn--ghost{border-color:rgba(246,243,238,.24);color:var(--paper);background:transparent}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn--sm{height:38px;padding:0 18px;font-size:13px}
.btn--xs{height:28px;padding:0 14px;font-size:12px;font-weight:600}
.btn--block{width:100%}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--brand);
  font-weight:600;
}
.link-arrow i{transition:transform .24s var(--ease);font-size:12px}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- 品牌标识 ---------- */
.brand{display:inline-flex;align-items:center;gap:12px}
.brand__mark{
  width:40px;height:40px;
  border-radius:12px;
  background:linear-gradient(140deg,var(--brand),#B8792440 70%);
  background-color:var(--brand);
  color:#0B0C0F;
  font-weight:800;
  font-size:17px;
  letter-spacing:.02em;
  display:flex;
  align-items:center;
  justify-content:center;
  flex:none;
  box-shadow:0 6px 18px rgba(233,161,59,.22);
}
.brand__text{display:flex;flex-direction:column;line-height:1.1}
.brand__main{font-size:19px;font-weight:800;letter-spacing:.04em;color:var(--paper)}
.brand__sub{font-size:11px;letter-spacing:.2em;color:var(--muted);margin-top:3px}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(11,12,15,.94);
  border-bottom:1px solid var(--line);
}
.header__inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
}
.main-nav a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  font-size:14.5px;
  color:#C9CDD4;
  letter-spacing:.02em;
  border-radius:8px;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.main-nav a:hover{color:var(--paper);background:rgba(246,243,238,.05)}
.main-nav a.active{color:var(--paper);font-weight:600}
.main-nav a.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.header__actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;
  border-radius:12px;
  border:1px solid rgba(246,243,238,.14);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#C9CDD4;
  transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:rgba(233,161,59,.6);background:rgba(233,161,59,.06)}
.nav-toggle{display:none}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;
  top:0;right:0;
  width:302px;
  max-width:86vw;
  height:100%;
  background:#101216;
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .24s var(--ease);
  z-index:120;
  padding:26px 24px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer__title{font-size:13px;letter-spacing:.16em;color:var(--muted)}
.drawer nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.drawer nav a{
  padding:13px 14px;
  border-radius:12px;
  font-size:15px;
  color:#D8DBE1;
  border:1px solid transparent;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.drawer nav a:hover,.drawer nav a.active{background:rgba(233,161,59,.08);border-color:rgba(233,161,59,.35);color:var(--paper)}
.drawer-close{
  width:38px;height:38px;border-radius:10px;
  border:1px solid rgba(246,243,238,.14);
  display:inline-flex;align-items:center;justify-content:center;
  color:#C9CDD4;
}
.drawer-close:hover{color:var(--brand);border-color:rgba(233,161,59,.6)}
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(0,0,0,.6);
  opacity:0;visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);
  z-index:110;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ---------- 搜索弹层 ---------- */
.search-layer{
  position:fixed;inset:0;
  background:rgba(0,0,0,.72);
  z-index:130;
  display:flex;
  align-items:flex-start;
  justify-content:center;
  padding:14vh 20px 20px;
  opacity:0;visibility:hidden;
  transition:opacity .22s var(--ease),visibility .22s var(--ease);
}
.search-layer.is-open{opacity:1;visibility:visible}
.search-panel{
  width:100%;
  max-width:600px;
  background:#13151A;
  border:1px solid var(--line);
  border-radius:16px;
  padding:28px;
  position:relative;
}
.search-title{font-size:18px;font-weight:700;margin-bottom:18px}
.search-form{display:flex;gap:10px}
.search-form input{
  flex:1;
  height:48px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#101216;
  color:var(--paper);
  padding:0 16px;
  font-size:15px;
  font-family:inherit;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-form input::placeholder{color:var(--muted)}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(233,161,59,.18)}
.search-hint{margin-top:14px;font-size:13px;color:var(--muted)}
.search-close{
  position:absolute;top:16px;right:16px;
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--muted);
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.search-close:hover{color:var(--brand);background:rgba(233,161,59,.08)}

/* ---------- 面包屑 ---------- */
.crumb-band{padding:26px 0 0}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--muted);
  overflow:hidden;
  white-space:nowrap;
}
.breadcrumb a{color:var(--muted);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--paper)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{
  color:var(--brand);
  overflow:hidden;
  text-overflow:ellipsis;
  min-width:0;
}

/* ---------- 文章布局 ---------- */
.article-main{padding:26px 0 var(--pad-y)}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 216px;
  gap:48px;
  align-items:start;
  max-width:1104px;
  margin:0 auto;
}
.article-panel{
  background:var(--paper);
  color:var(--ink);
  border-radius:18px;
  padding:48px;
  box-shadow:0 26px 60px rgba(0,0,0,.42);
}

/* 文章头 */
.article-head{padding-bottom:26px;border-bottom:1px solid rgba(22,24,28,.1)}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:6px;
  font-size:11px;
  letter-spacing:.06em;
  font-weight:600;
  border:1px solid var(--celadon-deep);
  color:#256B66;
  background:rgba(111,211,199,.14);
}
.badge--solid{
  background:var(--brand);
  border-color:var(--brand);
  color:#0B0C0F;
}
.article-title{
  margin-top:16px;
  font-size:clamp(26px,3.4vw,38px);
  line-height:1.22;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
}
.article-meta{
  margin-top:18px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 20px;
  font-size:13px;
  color:#6B7280;
}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--brand-press);font-size:12px}
.meta-num{
  font-family:var(--font-num);
  letter-spacing:.04em;
  color:#3A3F47;
  font-size:13px;
}
.article-cover{
  margin-top:28px;
  border-radius:14px;
  overflow:hidden;
  aspect-ratio:21/9;
  background:#E7E1D6;
}
.article-cover img{width:100%;height:100%;object-fit:cover}
.article-cover figcaption{
  font-size:12.5px;
  color:#6B7280;
  text-align:center;
  margin-top:10px;
}

/* 正文 */
.article-content{
  padding-top:32px;
  font-size:17px;
  line-height:1.9;
  color:#25282D;
}
.article-content > *:first-child{margin-top:0}
.article-content h2{
  font-size:clamp(21px,2.4vw,26px);
  line-height:1.35;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink);
  margin:40px 0 14px;
}
.article-content h2::after{
  content:"";
  display:block;
  width:40px;
  height:3px;
  border-radius:3px;
  background:var(--brand);
  margin-top:12px;
}
.article-content h3{
  font-size:20px;
  line-height:1.45;
  font-weight:700;
  color:var(--ink);
  margin:28px 0 10px;
}
.article-content p{margin:0 0 1.2em}
.article-content ul{margin:0 0 1.2em}
.article-content ul li{
  position:relative;
  padding-left:20px;
  margin-bottom:9px;
}
.article-content ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:.78em;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--brand);
}
.article-content ol{margin:0 0 1.2em;padding-left:1.5em;list-style:decimal}
.article-content ol li{margin-bottom:9px}
.article-content ol li::marker{color:var(--brand-press);font-weight:700}
.article-content blockquote{
  margin:24px 0;
  padding:16px 22px;
  border-left:3px solid var(--brand);
  background:rgba(233,161,59,.09);
  border-radius:0 10px 10px 0;
  color:#3A3F47;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{border-radius:12px;margin:22px auto;height:auto}
.article-content figcaption,.article-content figure figcaption{
  font-size:13px;
  color:#6B7280;
  text-align:center;
  margin-top:8px;
}
.article-content a{color:#B4761F;text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--brand-press)}
.article-content table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:15px;
}
.article-content th,.article-content td{
  padding:11px 12px;
  text-align:left;
  border-bottom:1px solid rgba(22,24,28,.12);
}
.article-content thead th{
  border-top:1px solid rgba(22,24,28,.3);
  border-bottom:1px solid rgba(22,24,28,.3);
  font-weight:700;
}
.article-content code{
  background:rgba(22,24,28,.07);
  padding:2px 6px;
  border-radius:6px;
  font-size:.92em;
}
.article-content hr{border:0;border-top:1px solid rgba(22,24,28,.12);margin:32px 0}

/* 空态 */
.article-empty{
  text-align:center;
  padding:40px 20px 20px;
}
.article-empty i{
  font-size:34px;
  color:var(--brand-press);
  opacity:.85;
}
.article-empty h2{
  font-size:22px;
  font-weight:800;
  color:var(--ink);
  margin:18px 0 10px;
}
.article-empty p{
  color:#4A5058;
  max-width:420px;
  margin:0 auto 22px;
  font-size:15.5px;
}
.article-empty .btn--primary{background:var(--brand);color:#0B0C0F}

/* 文末 */
.article-foot{
  margin-top:36px;
  padding-top:26px;
  border-top:1px solid rgba(22,24,28,.1);
}
.tag-title{
  font-size:12px;
  letter-spacing:.12em;
  color:#6B7280;
  margin-bottom:12px;
}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 12px;
  border-radius:6px;
  font-size:12.5px;
  color:#3A3F47;
  background:rgba(22,24,28,.05);
  border:1px solid rgba(22,24,28,.1);
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.tag:hover{border-color:var(--brand);color:#8A5A15;background:rgba(233,161,59,.1)}
.prevnext{
  margin-top:26px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
}
.prevnext a{
  display:block;
  border:1px solid rgba(22,24,28,.12);
  border-radius:12px;
  padding:16px 18px;
  transition:border-color .22s var(--ease),background-color .22s var(--ease),transform .22s var(--ease);
}
.prevnext a:hover{border-color:rgba(233,161,59,.7);background:rgba(233,161,59,.07);transform:translateY(-2px)}
.prevnext .pn-label{
  font-size:11.5px;
  letter-spacing:.12em;
  color:#6B7280;
  display:block;
  margin-bottom:6px;
}
.prevnext .pn-title{
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  display:block;
}
.prevnext .pn-desc{font-size:13px;color:#5B626B;margin-top:5px;display:block}

/* 目录 */
.article-aside{position:sticky;top:104px}
.toc{
  border:1px solid var(--line);
  border-radius:16px;
  background:var(--panel);
  padding:20px 18px;
}
.toc__title{
  font-size:12px;
  letter-spacing:.14em;
  color:var(--muted);
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:8px;
}
.toc__title::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--brand);
}
.toc__list{display:flex;flex-direction:column;gap:2px}
.toc__list a{
  display:block;
  font-size:13.5px;
  line-height:1.6;
  color:#B4B9C1;
  padding:6px 10px;
  border-radius:8px;
  border-left:2px solid transparent;
  transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);
}
.toc__list a:hover{color:var(--paper);background:rgba(246,243,238,.05)}
.toc__list a.is-current{
  color:var(--brand);
  border-left-color:var(--brand);
  background:rgba(233,161,59,.09);
}
.toc__list a.is-sub{padding-left:20px;font-size:13px;color:var(--muted)}

/* 相关推荐 */
.related-section{padding-top:64px}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:26px;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.2;
}
.section-head p{
  font-size:14px;
  color:var(--muted);
  margin-top:8px;
}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card{
  background:var(--panel);
  border:1px solid rgba(246,243,238,.08);
  border-radius:16px;
  overflow:hidden;
  transition:border-color .3s var(--ease),transform .3s var(--ease);
}
.card:hover{border-color:rgba(233,161,59,.6);transform:translateY(-3px)}
.card__fig{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:#101216;
}
.card__fig img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .6s var(--ease);
}
.card:hover .card__fig img{transform:scale(1.04)}
.card__badge{
  position:absolute;
  top:12px;left:12px;
  height:22px;
  padding:0 9px;
  border-radius:6px;
  background:rgba(11,12,15,.78);
  border:1px solid rgba(111,211,199,.5);
  color:var(--celadon);
  font-size:11px;
  letter-spacing:.06em;
  display:inline-flex;
  align-items:center;
}
.card__body{padding:18px 20px 20px}
.card__body h3{
  font-size:16.5px;
  font-weight:700;
  line-height:1.45;
  color:var(--paper);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card__body p{
  margin-top:9px;
  font-size:13.5px;
  line-height:1.7;
  color:var(--muted);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card__meta{
  margin-top:14px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:12px;
  color:#7A8089;
  font-family:var(--font-num);
  letter-spacing:.05em;
}
.card__meta .read{color:var(--brand);font-family:var(--font-cn);letter-spacing:0;font-size:12.5px}

/* 返回分类 CTA */
.back-cta{
  margin-top:64px;
  border:1px solid var(--line);
  border-radius:18px;
  padding:36px 40px;
  background:
    linear-gradient(90deg,rgba(11,12,15,.92),rgba(11,12,15,.7)),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  flex-wrap:wrap;
}
.back-cta h2{font-size:clamp(20px,2.2vw,26px);font-weight:800;letter-spacing:-.01em}
.back-cta p{margin-top:8px;font-size:14.5px;color:#B4B9C1;max-width:560px}
.back-cta .cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand p{
  margin-top:16px;
  font-size:13.5px;
  line-height:1.9;
  color:var(--muted);
  max-width:340px;
}
.footer-domain{
  display:inline-block;
  margin-top:16px;
  font-family:var(--font-num);
  font-size:12px;
  letter-spacing:.08em;
  color:#6B7280;
}
.footer-title{
  font-size:14px;
  font-weight:700;
  color:var(--brand);
  margin-bottom:18px;
  letter-spacing:.04em;
}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{
  font-size:13px;
  color:var(--muted);
  transition:color .2s var(--ease),transform .2s var(--ease);
  display:inline-block;
}
.footer-links a:hover{color:var(--paper);transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:#6B7280;
}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--muted);
  transition:color .2s var(--ease);
}
.to-top:hover{color:var(--brand)}

/* ---------- 动画 ---------- */
.reveal-up{
  opacity:0;
  transform:translateY(12px);
  animation:revealUp .42s var(--ease) forwards;
}
@keyframes revealUp{to{opacity:1;transform:translateY(0)}}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .grid-container{padding-left:40px;padding-right:40px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;max-width:820px}
  .article-aside{display:none}
  .article-panel{padding:40px}
}
@media (max-width:1024px){
  :root{--pad-y:72px}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:768px){
  :root{--pad-y:56px}
  .grid-container{padding-left:20px;padding-right:20px}
  .topbar__notice{display:none}
  .header__inner{height:64px}
  .brand__mark{width:36px;height:36px;font-size:16px}
  .brand__main{font-size:17px}
  .article-panel{padding:28px 22px;border-radius:16px}
  .article-content{font-size:16.5px;line-height:1.85}
  .article-meta{gap:8px 16px}
  .prevnext{grid-template-columns:1fr}
  .back-cta{padding:28px 22px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .card-grid{grid-template-columns:1fr}
  .article-panel{padding:22px 18px}
  .article-title{font-size:23px}
  .article-content{font-size:16px}
  .article-content h2{font-size:20px}
  .article-content h3{font-size:18px}
  .search-form{flex-direction:column}
  .search-form .btn{width:100%}
  .header__actions .btn--sm{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  .reveal-up{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --bg:#0B0C0F;
  --bg-deep:#08090B;
  --panel:#15171C;
  --panel-soft:#101216;
  --line:#2A2E36;
  --line-soft:rgba(246,243,238,.08);
  --ink:#F6F3EE;
  --muted:#9AA0AA;
  --amber:#E9A13B;
  --amber-hover:#F2B85C;
  --amber-press:#C7842A;
  --celadon:#6FD3C7;
  --celadon-deep:#2F6F6B;
  --danger:#E5555A;
  --ink-dark:#16181C;
  --radius-xl:20px;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:6px;
  --font-cn:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --font-num:'Archivo','Barlow Condensed','Noto Sans SC',system-ui,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-amber:0 10px 24px rgba(233,161,59,.24);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease),transform .2s var(--ease);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul{list-style:none;padding:0;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px;}
.grid-container{
  max-width:1280px;
  width:100%;
  margin:0 auto;
  padding-left:96px;
  padding-right:96px;
}
.grid-container.fluid{padding-left:0;padding-right:0;}

/* ============ 顶部信息条 ============ */
.topbar{
  background:var(--bg-deep);
  border-bottom:1px solid var(--line);
  height:38px;
  font-size:12px;
}
.topbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:38px;
}
.topbar__domain{
  color:var(--muted);
  letter-spacing:.06em;
  font-family:var(--font-num);
  white-space:nowrap;
}
.topbar__domain:hover{color:var(--ink);}
.topbar__notice{
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--celadon);
  letter-spacing:.02em;
}
.topbar__notice i{font-size:10px;}
.topbar__notice button{
  background:none;border:0;color:var(--muted);cursor:pointer;font-size:12px;padding:2px 4px;line-height:1;
}
.topbar__notice button:hover{color:var(--ink);}
.topbar__actions{display:flex;align-items:center;gap:10px;}
.topbar__link{color:var(--muted);font-size:12px;}
.topbar__link:hover{color:var(--ink);}
.topbar .btn--primary{height:26px;padding:0 14px;font-size:12px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 26px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  border:1px solid transparent;
  cursor:pointer;
  transition:all .24s var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--amber);color:var(--bg);}
.btn--primary:hover{background:var(--amber-hover);color:var(--bg);transform:translateY(-1px);box-shadow:var(--shadow-amber);}
.btn--primary:active{background:var(--amber-press);transform:translateY(0);box-shadow:none;}
.btn--ghost{background:transparent;border-color:rgba(246,243,238,.24);color:var(--ink);}
.btn--ghost:hover{border-color:var(--amber);color:var(--amber);}
.btn--sm{height:38px;padding:0 18px;font-size:13px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--amber);font-size:14px;font-weight:600;
}
.link-arrow i{transition:transform .24s var(--ease);font-size:12px;}
.link-arrow:hover{color:var(--amber-hover);}
.link-arrow:hover i{transform:translateX(4px);}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:70;
  background:var(--bg);
  border-bottom:1px solid transparent;
  transition:border-color .25s var(--ease),background-color .25s var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  background:rgba(11,12,15,.97);
}
.header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px;}
.brand__mark{
  width:40px;height:40px;border-radius:11px;
  background:linear-gradient(140deg,var(--amber),var(--amber-press));
  color:var(--bg-deep);
  font-weight:900;font-size:16px;letter-spacing:-.02em;
  display:grid;place-items:center;
  flex:0 0 auto;
}
.brand__text{display:flex;flex-direction:column;line-height:1.08;}
.brand__main{font-weight:900;font-size:17px;letter-spacing:-.01em;}
.brand__sub{font-size:11px;letter-spacing:.2em;color:var(--muted);}
.main-nav{display:flex;align-items:center;gap:30px;}
.main-nav a{
  position:relative;
  font-size:15px;
  letter-spacing:.02em;
  color:rgba(246,243,238,.78);
  padding:8px 0;
}
.main-nav a::after{
  content:"";
  position:absolute;left:0;right:0;bottom:2px;height:2px;
  background:var(--amber);
  transform:scaleX(0);transform-origin:left;
  transition:transform .26s var(--ease);
}
.main-nav a:hover{color:var(--ink);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--ink);font-weight:700;}
.main-nav a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:42px;height:42px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line);
  background:var(--panel-soft);
  color:var(--ink);cursor:pointer;font-size:15px;
  transition:all .24s var(--ease);
}
.icon-btn:hover{border-color:rgba(233,161,59,.6);color:var(--amber);}
.nav-toggle{display:none;}

/* 移动端抽屉 */
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:var(--panel);
  border-left:1px solid var(--line);
  z-index:120;
  transform:translateX(100%);
  transition:transform .24s var(--ease);
  padding:26px 22px;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.mobile-drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.mobile-drawer__title{font-size:13px;letter-spacing:.16em;color:var(--muted);}
.mobile-drawer a.drawer-link{
  display:block;padding:14px 4px;font-size:16px;
  border-bottom:1px solid var(--line);
  color:rgba(246,243,238,.82);
}
.mobile-drawer a.drawer-link.active{color:var(--amber);font-weight:700;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.68);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ============ 分类头区 ============ */
.cat-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:var(--bg);
}
.cat-hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.42;
}
.cat-hero__veil{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(11,12,15,.97) 0%,rgba(11,12,15,.86) 46%,rgba(11,12,15,.55) 100%),
    linear-gradient(180deg,rgba(11,12,15,.35) 0%,rgba(11,12,15,.6) 55%,rgba(11,12,15,.98) 100%);
}
.cat-hero__inner{
  position:relative;z-index:2;
  padding-top:74px;padding-bottom:66px;
  max-width:820px;
}
.breadcrumb{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--muted);
  margin-bottom:22px;flex-wrap:wrap;
}
.breadcrumb a:hover{color:var(--amber);}
.breadcrumb span.sep{color:var(--line);}
.breadcrumb .current{color:var(--amber);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;border-radius:var(--radius-sm);
  background:rgba(233,161,59,.14);
  border:1px solid rgba(233,161,59,.5);
  color:var(--amber);
  font-size:11px;letter-spacing:.12em;
  margin-bottom:20px;
}
.cat-hero h1{
  font-size:clamp(34px,4.8vw,58px);
  font-weight:900;
  line-height:1.1;
  letter-spacing:-.02em;
  margin-bottom:18px;
}
.cat-hero h1 em{
  font-style:normal;
  color:var(--amber);
}
.cat-hero__sub{
  font-size:17px;
  color:rgba(246,243,238,.78);
  max-width:640px;
  margin-bottom:30px;
}
.cat-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:40px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.stat{min-width:110px;}
.stat__num{
  font-family:var(--font-num);
  font-size:26px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
}
.stat__num i{font-size:14px;color:var(--amber);font-style:normal;margin-left:4px;}
.stat__label{font-size:13px;color:var(--muted);}

/* ============ 通用板块 ============ */
.section{padding:80px 0;border-bottom:1px solid var(--line);}
.section--tight{padding:56px 0;}
.section--deep{background:var(--bg-deep);}
.section__head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:32px;flex-wrap:wrap;
}
.section__title{
  font-size:clamp(24px,3vw,38px);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.15;
}
.section__title span{color:var(--amber);}
.section__desc{color:var(--muted);font-size:15px;margin-top:10px;max-width:660px;}

/* ============ 筛选芯片 ============ */
.chip-row{
  display:flex;flex-wrap:wrap;gap:12px;
  margin-top:6px;
}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--panel-soft);
  color:var(--muted);
  font-size:14px;
  cursor:pointer;
  transition:all .22s var(--ease);
}
.chip i{font-size:11px;}
.chip:hover{border-color:rgba(233,161,59,.55);color:var(--ink);}
.chip.is-active{
  background:var(--amber);
  border-color:var(--amber);
  color:var(--bg-deep);
  font-weight:700;
}
.chip.is-active:hover{background:var(--amber-hover);border-color:var(--amber-hover);color:var(--bg-deep);}
.chip__count{
  font-family:var(--font-num);
  font-size:12px;
  opacity:.8;
}

/* ============ 海报网格 ============ */
.poster-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.poster-card{
  display:flex;flex-direction:column;
  background:var(--panel);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.poster-card:hover{transform:translateY(-4px);border-color:rgba(233,161,59,.6);}
.poster-card__media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--panel-soft);
}
.poster-card__media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .6s var(--ease);
}
.poster-card:hover .poster-card__media img{transform:scale(1.04);}
.poster-card__badge{
  position:absolute;top:12px;left:12px;
  height:24px;padding:0 10px;
  display:inline-flex;align-items:center;
  border-radius:var(--radius-sm);
  font-size:11px;letter-spacing:.08em;
  background:rgba(8,9,11,.78);
  border:1px solid var(--celadon);
  color:var(--celadon);
}
.poster-card__hot{
  position:absolute;top:12px;right:12px;
  height:24px;padding:0 10px;
  display:inline-flex;align-items:center;gap:5px;
  border-radius:var(--radius-sm);
  font-family:var(--font-num);
  font-size:12px;
  background:rgba(233,161,59,.92);
  color:var(--bg-deep);
  font-weight:700;
}
.poster-card__hot i{font-size:10px;}
.poster-card__body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1;}
.poster-card__title{
  font-size:17px;font-weight:700;line-height:1.4;
  letter-spacing:-.01em;
}
.poster-card__title a:hover{color:var(--amber);}
.poster-card__meta{
  font-size:13px;color:var(--muted);
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:auto;
  padding-top:10px;
  border-top:1px solid var(--line);
}
.poster-card__meta i{color:var(--celadon);font-size:11px;}
.poster-card__desc{font-size:14px;color:var(--muted);line-height:1.7;}

/* ============ 热度榜 ============ */
.rank-layout{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px;
}
.rank-list{
  background:var(--panel);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);
  padding:10px 24px 14px;
}
.rank-item{
  display:flex;align-items:center;gap:18px;
  padding:18px 0;
  border-bottom:1px solid var(--line);
  transition:transform .24s var(--ease);
}
.rank-item:last-child{border-bottom:0;}
.rank-item:hover{transform:translateX(4px);}
.rank-item__no{
  font-family:var(--font-num);
  font-size:28px;font-weight:700;
  color:rgba(246,243,238,.22);
  min-width:44px;letter-spacing:-.02em;
}
.rank-item:first-child .rank-item__no{color:var(--amber);}
.rank-item__body{flex:1;min-width:0;}
.rank-item__name{font-size:16px;font-weight:700;}
.rank-item__name a:hover{color:var(--amber);}
.rank-item__meta{font-size:13px;color:var(--muted);margin-top:2px;}
.rank-item__count{
  font-family:var(--font-num);
  font-size:13px;color:var(--celadon);
  border:1px solid rgba(111,211,199,.45);
  border-radius:999px;
  padding:3px 12px;
  white-space:nowrap;
}
.rank-side{
  background:var(--panel);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);
  padding:26px 26px 28px;
  display:flex;flex-direction:column;
}
.rank-side h3{font-size:20px;font-weight:800;margin-bottom:12px;}
.rank-side p{font-size:15px;color:var(--muted);margin-bottom:22px;}
.avatar-row{display:flex;align-items:center;gap:14px;margin-bottom:24px;}
.avatar-stack{display:flex;}
.avatar{
  width:40px;height:40px;border-radius:50%;
  border:2px solid var(--panel);
  margin-left:-12px;
  background-size:cover;background-position:center;
}
.avatar:first-child{margin-left:0;}
.avatar-row__text{font-size:13px;color:var(--muted);}
.avatar-row__text strong{display:block;color:var(--ink);font-size:16px;font-family:var(--font-num);}
.topic-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.tag{
  display:inline-flex;align-items:center;
  height:28px;padding:0 12px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  color:var(--muted);font-size:13px;
}
.tag:hover{border-color:rgba(233,161,59,.55);color:var(--amber);}
.rank-side .btn{margin-top:auto;align-self:flex-start;}

/* ============ 加载占位 ============ */
.more-band{
  padding:48px 0 84px;
  text-align:center;
  border-bottom:1px solid var(--line);
}
.more-band__progress{
  width:min(360px,80%);
  height:4px;
  border-radius:999px;
  background:var(--line);
  margin:0 auto 20px;
  overflow:hidden;
}
.more-band__progress span{
  display:block;height:100%;
  width:62%;
  background:linear-gradient(90deg,var(--amber-press),var(--amber));
  border-radius:999px;
}
.more-band__text{font-size:14px;color:var(--muted);margin-bottom:22px;}
.more-band__text em{font-family:var(--font-num);font-style:normal;color:var(--ink);}

/* ============ 相关分类 ============ */
.related-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.related-card{
  display:flex;flex-direction:column;gap:10px;
  padding:24px 22px;
  border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);
  background:var(--panel);
  min-height:150px;
  transition:all .26s var(--ease);
}
.related-card:hover{
  border-color:rgba(233,161,59,.6);
  transform:translateY(-3px);
}
.related-card__no{
  font-family:var(--font-num);
  font-size:12px;letter-spacing:.12em;
  color:var(--celadon);
}
.related-card h3{font-size:18px;font-weight:800;}
.related-card p{font-size:14px;color:var(--muted);line-height:1.7;}
.related-card .link-arrow{margin-top:auto;font-size:13px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--line);
  padding:70px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid var(--line);
}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;max-width:340px;margin-top:6px;}
.footer-domain{
  display:inline-block;
  margin-top:16px;
  font-family:var(--font-num);
  font-size:12px;letter-spacing:.08em;
  color:rgba(154,160,170,.7);
}
.footer-title{font-size:14px;color:var(--amber);font-weight:700;margin-bottom:16px;letter-spacing:.04em;}
.footer-links li{margin-bottom:11px;}
.footer-links a{
  font-size:13px;color:var(--muted);
  display:inline-block;
}
.footer-links a:hover{color:var(--ink);transform:translateX(2px);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;flex-wrap:wrap;
  padding-top:24px;
  font-size:12px;color:var(--muted);
}
.to-top{display:inline-flex;align-items:center;gap:8px;color:var(--muted);font-size:12px;}
.to-top:hover{color:var(--amber);}

/* ============ 搜索弹层 ============ */
.reveal.search-panel{
  background:var(--panel);
  color:var(--ink);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:28px;
  max-width:540px;
}
.reveal.search-panel h3{font-size:20px;font-weight:800;margin-bottom:8px;}
.reveal.search-panel p{font-size:14px;color:var(--muted);margin-bottom:20px;}
.search-field{
  display:flex;gap:10px;
}
.search-field input{
  flex:1;height:48px;
  background:var(--panel-soft);
  border:1px solid var(--line);
  border-radius:10px;
  color:var(--ink);
  padding:0 16px;
  font-size:15px;
}
.search-field input::placeholder{color:var(--muted);}
.search-field input:focus{outline:none;border-color:var(--amber);box-shadow:0 0 0 3px rgba(233,161,59,.18);}
.reveal-overlay{background:rgba(0,0,0,.72);}
.search-hints{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}

/* ============ 动效 ============ */
.reveal-up{
  opacity:0;
  transform:translateY(12px);
  animation:fadeUp .42s var(--ease) forwards;
}
.reveal-up:nth-child(2){animation-delay:.06s;}
.reveal-up:nth-child(3){animation-delay:.12s;}
.reveal-up:nth-child(4){animation-delay:.18s;}
.reveal-up:nth-child(5){animation-delay:.24s;}
@keyframes fadeUp{to{opacity:1;transform:translateY(0);}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;}
  .reveal-up{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .grid-container{padding-left:64px;padding-right:64px;}
  .poster-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:34px;}
}
@media (max-width:1024px){
  .grid-container{padding-left:40px;padding-right:40px;}
  .main-nav{display:none;}
  .nav-toggle{display:grid;}
  .header__inner{min-height:66px;}
  .section{padding:64px 0;}
  .cat-hero__inner{padding-top:56px;padding-bottom:52px;}
  .rank-layout{grid-template-columns:1fr;}
  .topbar__notice{display:none;}
}
@media (max-width:768px){
  .grid-container{padding-left:24px;padding-right:24px;}
  .poster-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .hero-stats{gap:26px;}
  .cat-hero h1{font-size:clamp(30px,7vw,42px);}
  .cat-hero__sub{font-size:15px;}
  .section{padding:56px 0;}
  .nav-actions .btn--primary{display:none;}
}
@media (max-width:520px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .poster-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
  .poster-card__body{padding:13px 14px 16px;}
  .poster-card__title{font-size:15px;}
  .poster-card__desc{display:none;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .topbar__actions .topbar__link{display:none;}
  .brand__sub{font-size:10px;letter-spacing:.14em;}
  .section__head{margin-bottom:24px;}
  .more-band{padding:40px 0 60px;}
  .stat__num{font-size:22px;}
}

/* roulang page: category2 */
:root{
  --bg:#0B0C0F;
  --panel:#15171C;
  --panel-2:#101216;
  --line:#2A2E36;
  --ink:#F6F3EE;
  --muted:#9AA0AA;
  --amber:#E9A13B;
  --amber-h:#F2B85C;
  --amber-d:#C7842A;
  --celadon:#6FD3C7;
  --celadon-d:#2F6F6B;
  --error:#E5555A;
  --paper:#F6F3EE;
  --ink-deep:#16181C;
  --radius-s:6px;
  --radius-m:16px;
  --radius-l:18px;
  --shadow-amber:0 10px 24px rgba(233,161,59,.24);
  --font-cn:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --font-num:'Barlow Condensed','Archivo',sans-serif;
  --container:1280px;
  --pad-x:96px;
}

/* ========== base reset ========== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
a:hover,a:focus{color:var(--amber);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px;}

.grid-container{
  max-width:var(--container);
  margin-left:auto;
  margin-right:auto;
  padding-left:var(--pad-x);
  padding-right:var(--pad-x);
  width:100%;
}

/* ========== top bar ========== */
.topbar{
  background:#08090B;
  border-bottom:1px solid var(--line);
  font-size:12px;
  letter-spacing:.02em;
  color:var(--muted);
  position:relative;
  z-index:60;
}
.topbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:38px;
}
.topbar__domain{
  color:var(--muted);
  font-family:var(--font-num);
  letter-spacing:.08em;
  font-size:12px;
}
.topbar__domain:hover{color:var(--ink);}
.topbar__note{
  flex:1;
  text-align:center;
  color:var(--muted);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar__note i{color:var(--celadon);margin-right:6px;}
.topbar__actions{display:flex;align-items:center;gap:14px;}
.topbar__actions .t-link{color:var(--muted);}
.topbar__actions .t-link:hover{color:var(--ink);}
.topbar__cta{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 14px;
  border-radius:999px;
  background:var(--amber);
  color:#0B0C0F;
  font-weight:700;
  font-size:12px;
  transition:background .2s ease,transform .2s ease;
}
.topbar__cta:hover{background:var(--amber-h);color:#0B0C0F;transform:translateY(-1px);}

/* ========== header ========== */
.site-header{
  position:sticky;
  top:0;
  z-index:55;
  background:rgba(11,12,15,.86);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
  backdrop-filter:blur(6px);
}
.site-header.is-solid{
  background:#0B0C0F;
  box-shadow:0 8px 28px rgba(0,0,0,.45);
}
.header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px;}
.brand__mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:10px;
  background:linear-gradient(140deg,var(--amber) 0%,var(--amber-d) 100%);
  color:#0B0C0F;
  font-weight:900;
  font-size:17px;
  letter-spacing:-.02em;
  flex:none;
}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__main{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
.brand__sub{font-size:11px;letter-spacing:.2em;color:var(--muted);}
.brand:hover .brand__main{color:var(--amber-h);}

.main-nav{display:flex;align-items:center;gap:30px;}
.main-nav a{
  position:relative;
  font-size:15px;
  letter-spacing:.02em;
  color:var(--muted);
  padding:6px 0;
  transition:color .2s ease;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--amber);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s cubic-bezier(.22,.61,.36,1);
}
.main-nav a:hover{color:var(--ink);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--ink);}
.main-nav a.active::after{transform:scaleX(1);}

.header__tools{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:transparent;
  color:var(--muted);
  cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.icon-btn:hover{color:var(--amber);border-color:rgba(233,161,59,.6);background:rgba(233,161,59,.06);}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 26px;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--amber);color:#0B0C0F;}
.btn--primary:hover{background:var(--amber-h);color:#0B0C0F;transform:translateY(-1px);box-shadow:var(--shadow-amber);}
.btn--primary:active{background:var(--amber-d);}
.btn--ghost{background:transparent;color:var(--ink);border-color:rgba(246,243,238,.24);}
.btn--ghost:hover{border-color:var(--amber);color:var(--amber);}
.btn--sm{height:38px;padding:0 20px;font-size:14px;}
.link-cta{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--amber);font-size:14px;font-weight:600;
}
.link-cta i{transition:transform .22s ease;}
.link-cta:hover{color:var(--amber-h);}
.link-cta:hover i{transform:translateX(4px);}

.nav-toggle{display:none;}

/* ========== drawer ========== */
.drawer{
  position:fixed;
  inset:0;
  z-index:90;
  pointer-events:none;
}
.drawer__mask{
  position:absolute;inset:0;
  background:rgba(0,0,0,.72);
  opacity:0;
  transition:opacity .24s ease;
}
.drawer__panel{
  position:absolute;
  top:0;right:0;
  width:min(86vw,340px);
  height:100%;
  background:var(--panel);
  border-left:1px solid var(--line);
  padding:24px 22px 32px;
  transform:translateX(100%);
  transition:transform .24s cubic-bezier(.22,.61,.36,1);
  display:flex;
  flex-direction:column;
  gap:22px;
  overflow-y:auto;
}
.drawer.is-open{pointer-events:auto;}
.drawer.is-open .drawer__mask{opacity:1;}
.drawer.is-open .drawer__panel{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;}
.drawer__nav{display:flex;flex-direction:column;}
.drawer__nav a{
  padding:14px 0;
  border-bottom:1px solid var(--line);
  font-size:16px;
  color:var(--ink);
}
.drawer__nav a.active{color:var(--amber);}

/* ========== hero ========== */
.cat-hero{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  z-index:-2;
}
.cat-hero__mask{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,12,15,.96) 0%,rgba(11,12,15,.82) 48%,rgba(11,12,15,.55) 100%),
             linear-gradient(180deg,rgba(11,12,15,.35) 55%,rgba(11,12,15,.98) 100%);
  z-index:-1;
}
.cat-hero__inner{
  padding:96px 0 72px;
  max-width:760px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:24px;
  padding:0 12px;
  border-radius:var(--radius-s);
  font-size:12px;
  letter-spacing:.08em;
  border:1px solid rgba(111,211,199,.55);
  color:var(--celadon);
  background:rgba(47,111,107,.16);
}
.badge--amber{
  background:var(--amber);
  border-color:var(--amber);
  color:#0B0C0F;
  font-weight:700;
}
.cat-hero h1{
  margin-top:22px;
  font-size:clamp(32px,4.6vw,58px);
  font-weight:900;
  line-height:1.08;
  letter-spacing:-.02em;
}
.cat-hero h1 em{
  font-style:normal;
  color:var(--amber);
}
.cat-hero__sub{
  margin-top:20px;
  font-size:17px;
  color:#C9CDD4;
  max-width:620px;
}
.cat-hero__meta{
  margin-top:30px;
  display:flex;
  flex-wrap:wrap;
  gap:14px 34px;
  font-size:13px;
  color:var(--muted);
}
.cat-hero__meta b{
  font-family:var(--font-num);
  font-size:22px;
  font-weight:700;
  color:var(--ink);
  margin-right:6px;
  letter-spacing:.02em;
}
.cat-hero__actions{margin-top:34px;display:flex;flex-wrap:wrap;gap:14px;}

/* ========== section shell ========== */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--alt{background:var(--panel-2);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;
}
.eyebrow{
  font-family:var(--font-num);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--amber);
  text-transform:uppercase;
  margin-bottom:10px;
}
.section-head h2{
  font-size:clamp(24px,3.2vw,38px);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.15;
}
.section-head p{
  margin-top:12px;
  color:var(--muted);
  font-size:15px;
  max-width:640px;
}

/* ========== chips ========== */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:40px;}
.chip{
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--panel);
  color:var(--muted);
  font-size:13px;
  cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.chip:hover{color:var(--ink);border-color:rgba(246,243,238,.3);}
.chip.is-active{background:var(--amber);border-color:var(--amber);color:#0B0C0F;font-weight:700;}

/* ========== timeline ========== */
.timeline{--tl-col:96px;position:relative;padding-left:0;}
.timeline::before{
  content:"";
  position:absolute;
  top:12px;bottom:12px;
  left:calc(var(--tl-col) - 1px);
  width:1px;
  background:linear-gradient(180deg,rgba(233,161,59,.5),var(--line) 22%,var(--line) 78%,rgba(233,161,59,.35));
}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:var(--tl-col) 1fr;
  gap:28px;
  padding-bottom:28px;
}
.tl-item::before{
  content:"";
  position:absolute;
  top:16px;
  left:calc(var(--tl-col) - 4px);
  width:9px;height:9px;
  border-radius:50%;
  background:var(--amber);
  box-shadow:0 0 0 4px rgba(233,161,59,.14);
}
.tl-date{
  text-align:right;
  padding-top:8px;
}
.tl-date span{
  display:block;
  font-family:var(--font-num);
  font-size:26px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--ink);
  line-height:1.1;
}
.tl-date em{
  display:block;
  font-style:normal;
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:.1em;
  color:var(--muted);
  margin-top:4px;
}
.tl-card{
  display:flex;
  gap:20px;
  padding:18px;
  background:var(--panel);
  border:1px solid rgba(246,243,238,.08);
  border-radius:var(--radius-m);
  transition:border-color .28s ease,transform .28s ease;
}
.tl-card:hover{border-color:rgba(233,161,59,.6);transform:translateY(-3px);}
.tl-thumb{
  flex:none;
  width:184px;
  aspect-ratio:16/9;
  border-radius:12px;
  overflow:hidden;
  background:#0e1013;
}
.tl-thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .6s cubic-bezier(.22,.61,.36,1);
}
.tl-card:hover .tl-thumb img{transform:scale(1.04);}
.tl-body{min-width:0;flex:1;display:flex;flex-direction:column;}
.tl-body h3{
  margin-top:10px;
  font-size:20px;
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.3;
}
.tl-body p{
  margin-top:8px;
  color:var(--muted);
  font-size:14.5px;
  line-height:1.7;
}
.tl-foot{
  margin-top:auto;
  padding-top:14px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:var(--muted);
  border-top:1px solid var(--line);
}
.tl-foot time{font-family:var(--font-num);letter-spacing:.08em;}
.tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:var(--radius-s);
  font-size:11.5px;
  letter-spacing:.08em;
  border:1px solid rgba(111,211,199,.5);
  color:var(--celadon);
  background:rgba(47,111,107,.14);
}
.tag--amber{
  background:var(--amber);
  border-color:var(--amber);
  color:#0B0C0F;
  font-weight:700;
}

.timeline__more{display:flex;justify-content:center;margin-top:24px;}

/* ========== week strip ========== */
.week-strip{
  display:grid;
  grid-template-columns:repeat(7,1fr);
  gap:16px;
}
.week-day{
  background:var(--panel);
  border:1px solid rgba(246,243,238,.08);
  border-radius:var(--radius-m);
  padding:20px 16px;
  transition:border-color .25s ease,transform .25s ease;
}
.week-day:hover{border-color:rgba(233,161,59,.55);transform:translateY(-3px);}
.week-day span{
  display:block;
  font-family:var(--font-num);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--muted);
}
.week-day strong{
  display:block;
  margin-top:10px;
  font-size:15px;
  font-weight:800;
  color:var(--ink);
  letter-spacing:-.01em;
}
.week-day p{margin-top:6px;font-size:12.5px;color:var(--muted);line-height:1.6;}
.week-day.is-today{border-color:rgba(233,161,59,.7);background:#191a1f;}
.week-day.is-today span{color:var(--amber);}

/* ========== feature cards ========== */
.feature-card{
  height:100%;
  padding:30px 26px;
  background:var(--panel);
  border:1px solid rgba(246,243,238,.08);
  border-radius:var(--radius-m);
  transition:border-color .28s ease,transform .28s ease;
}
.feature-card:hover{border-color:rgba(233,161,59,.55);transform:translateY(-3px);}
.feature-card .num{
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:.2em;
  color:var(--amber);
}
.feature-card h3{
  margin-top:14px;
  font-size:21px;
  font-weight:800;
  letter-spacing:-.01em;
}
.feature-card p{margin-top:12px;color:var(--muted);font-size:15px;}
.feature-card ul{margin-top:18px;border-top:1px solid var(--line);padding-top:14px;}
.feature-card li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:#C9CDD4;
  margin-bottom:8px;
}
.feature-card li::before{
  content:"";
  position:absolute;left:0;top:9px;
  width:6px;height:6px;
  background:var(--amber);
  border-radius:1px;
}

/* ========== faq ========== */
.accordion{
  background:transparent;
  border:0;
  margin:0;
}
.accordion .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
}
.accordion .accordion-item:first-child{border-top:1px solid var(--line);}
.accordion .accordion-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:22px 4px;
  font-size:16px;
  font-weight:700;
  color:var(--ink);
  background:transparent;
  border:0;
  line-height:1.5;
}
.accordion .accordion-title:hover,
.accordion .accordion-title:focus{color:var(--amber);background:transparent;}
.accordion .accordion-title::before{
  content:"\2b";
  font-family:var(--font-num);
  order:2;
  flex:none;
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid rgba(233,161,59,.55);
  color:var(--amber);
  font-size:15px;
  line-height:1;
  transition:transform .26s ease,background .26s ease,color .26s ease;
}
.accordion .accordion-item.is-active .accordion-title{color:var(--amber);}
.accordion .accordion-item.is-active .accordion-title::before{
  transform:rotate(45deg);
  background:var(--amber);
  color:#0B0C0F;
}
.accordion .accordion-content{
  background:transparent;
  border:0;
  padding:0 4px 24px;
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
}
.accordion .accordion-content p{color:var(--muted);}

/* ========== cta band ========== */
.cta-band{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-band__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  z-index:-2;
}
.cta-band__mask{
  position:absolute;inset:0;
  background:rgba(11,12,15,.78);
  z-index:-1;
}
.cta-band__inner{
  display:grid;
  grid-template-columns:1fr 460px;
  gap:60px;
  align-items:center;
  padding:88px 0;
}
.cta-band h2{
  font-size:clamp(24px,3.2vw,36px);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.2;
}
.cta-band p.lead{
  margin-top:16px;
  color:#C9CDD4;
  font-size:16px;
  max-width:520px;
}
.cta-form{
  background:rgba(21,23,28,.92);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  padding:28px;
}
.cta-form label{
  display:block;
  font-size:13px;
  color:var(--muted);
  margin-bottom:10px;
  letter-spacing:.04em;
}
.cta-form .field{
  display:flex;
  gap:12px;
}
input[type="text"],
input[type="email"]{
  flex:1;
  height:48px;
  padding:0 16px;
  border-radius:10px;
  background:var(--panel-2);
  border:1px solid var(--line);
  color:var(--ink);
  font-size:15px;
  font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
input[type="text"]::placeholder,
input[type="email"]::placeholder{color:var(--muted);}
input[type="text"]:focus,
input[type="email"]:focus{
  outline:none;
  border-color:var(--amber);
  box-shadow:0 0 0 3px rgba(233,161,59,.18);
}
.cta-form .hint{
  margin-top:14px;
  font-size:12.5px;
  color:var(--muted);
  line-height:1.7;
}
.cta-form .hint i{color:var(--celadon);margin-right:6px;}

/* ========== related ========== */
.related-grid{margin-top:8px;}
.rel-card{
  display:flex;
  flex-direction:column;
  height:100%;
  padding:24px 22px;
  background:var(--panel);
  border:1px solid rgba(246,243,238,.08);
  border-radius:var(--radius-m);
  transition:border-color .28s ease,transform .28s ease;
}
.rel-card:hover{border-color:rgba(233,161,59,.6);transform:translateY(-3px);}
.rel-card .rel-idx{
  font-family:var(--font-num);
  font-size:12px;
  letter-spacing:.2em;
  color:var(--amber);
}
.rel-card h3{margin-top:12px;font-size:18px;font-weight:800;}
.rel-card p{margin-top:10px;font-size:13.5px;color:var(--muted);flex:1;}
.rel-card .rel-go{
  margin-top:16px;
  display:inline-flex;align-items:center;gap:8px;
  color:var(--amber);font-size:13.5px;font-weight:600;
}
.rel-card:hover .rel-go i{transform:translateX(4px);}
.rel-card .rel-go i{transition:transform .22s ease;}
.rel-card.is-current{border-color:rgba(233,161,59,.55);background:#191a1f;}

/* ========== footer ========== */
.site-footer{
  background:#08090B;
  border-top:1px solid var(--line);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:48px;
  padding-bottom:52px;
}
.footer-brand p{
  margin-top:16px;
  color:var(--muted);
  font-size:13.5px;
  line-height:1.85;
  max-width:360px;
}
.footer-domain{
  display:inline-block;
  margin-top:16px;
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:.1em;
  color:var(--muted);
  border:1px solid var(--line);
  border-radius:var(--radius-s);
  padding:4px 10px;
}
.footer-title{
  font-size:14px;
  font-weight:800;
  color:var(--amber);
  letter-spacing:.04em;
  margin-bottom:18px;
}
.footer-links li{margin-bottom:11px;}
.footer-links a{
  font-size:13px;
  color:var(--muted);
  transition:color .2s ease,transform .2s ease;
  display:inline-block;
}
.footer-links a:hover{color:var(--ink);transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:var(--muted);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--muted);font-size:12.5px;
}
.to-top:hover{color:var(--amber);}

/* ========== reveal overrides ========== */
.reveal{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:32px;
  color:var(--ink);
}
.reveal h3{font-size:20px;font-weight:800;margin-bottom:8px;}
.reveal p{color:var(--muted);font-size:14px;margin-bottom:18px;}
.reveal-overlay{background:rgba(0,0,0,.72);}
.close-button{color:var(--muted);}
.close-button:hover{color:var(--amber);}

/* ========== responsive ========== */
@media screen and (max-width:1200px){
  :root{--pad-x:40px;}
  .cta-band__inner{grid-template-columns:1fr 380px;gap:40px;}
  .week-strip{grid-template-columns:repeat(4,1fr);}
}
@media screen and (max-width:1024px){
  .main-nav{display:none;}
  .nav-toggle{display:grid;}
  .cat-hero__inner{padding:72px 0 56px;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-band__inner{grid-template-columns:1fr;gap:32px;padding:64px 0;}
  .tl-card{flex-direction:column;}
  .tl-thumb{width:100%;}
  .week-strip{grid-template-columns:repeat(3,1fr);}
}
@media screen and (max-width:640px){
  :root{--pad-x:20px;}
  .topbar__note{display:none;}
  .header__inner{min-height:64px;gap:14px;}
  .header__tools .btn--primary{display:none;}
  .cat-hero__inner{padding:56px 0 44px;}
  .cat-hero h1{font-size:clamp(28px,8vw,38px);}
  .cat-hero__meta{gap:12px 22px;}
  .cat-hero__meta b{font-size:19px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .timeline{--tl-col:62px;}
  .tl-item{gap:18px;padding-bottom:22px;}
  .tl-date span{font-size:20px;}
  .tl-date em{font-size:11px;}
  .tl-card{padding:14px;gap:14px;}
  .week-strip{grid-template-columns:1fr 1fr;gap:12px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .cta-form .field{flex-direction:column;}
  .cta-form .field .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --bg:#0B0C0F;
  --bg-deep:#08090B;
  --panel:#15171C;
  --panel-soft:#101216;
  --line:#2A2E36;
  --ink:#F6F3EE;
  --muted:#9AA0AA;
  --amber:#E9A13B;
  --amber-hi:#F2B85C;
  --amber-lo:#C7842A;
  --celadon:#6FD3C7;
  --celadon-deep:#2F6F6B;
  --error:#E5555A;
  --radius:16px;
  --radius-lg:18px;
  --font-cn:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --font-num:'Archivo','Barlow Condensed',sans-serif;
  --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(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{font-weight:900;letter-spacing:-.02em;line-height:1.14}
button,input{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.grid-container{max-width:1280px;padding-left:96px;padding-right:96px;margin:0 auto;width:100%}
.grid-padding-x{margin-left:-12px;margin-right:-12px}
.grid-padding-x > .cell{padding-left:12px;padding-right:12px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--bg-deep);border-bottom:1px solid var(--line);height:38px;display:flex;align-items:center}
.topbar__inner{display:flex;align-items:center;gap:20px;height:38px}
.topbar__domain{font-family:var(--font-num);font-size:12px;letter-spacing:.06em;color:var(--muted);flex:none}
.topbar__domain:hover{color:var(--amber)}
.topbar__note{margin:0;flex:1;text-align:center;font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar__actions{margin-left:auto;display:flex;align-items:center;gap:16px;flex:none}
.topbar__login{font-size:12px;color:var(--muted)}
.topbar__login:hover{color:var(--ink)}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg);border-bottom:1px solid var(--line);transition:box-shadow .3s var(--ease),background .3s var(--ease)}
.site-header.is-scrolled{box-shadow:0 14px 34px rgba(0,0,0,.5)}
.header__inner{display:flex;align-items:center;height:76px}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand__mark{
  display:grid;place-items:center;width:42px;height:42px;border-radius:12px;
  background:linear-gradient(135deg,var(--amber),var(--amber-lo));
  color:#0B0C0F;font-weight:900;font-size:16px;letter-spacing:0;flex:none;
}
.brand__text{display:flex;flex-direction:column;line-height:1.08}
.brand__main{font-weight:900;font-size:17px;letter-spacing:.02em}
.brand__sub{font-size:11px;letter-spacing:.2em;color:var(--muted)}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{position:relative;font-size:14.5px;letter-spacing:.02em;color:var(--muted);padding:6px 0}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--amber);
  transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease);
}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--ink)}
.main-nav a.active::after{transform:scaleX(1)}
.header__actions{margin-left:28px;display:flex;align-items:center;gap:12px;flex:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:transparent;color:var(--ink);align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.nav-toggle:hover{border-color:var(--amber);color:var(--amber)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  background:var(--amber);color:#0B0C0F;font-weight:800;font-size:15px;cursor:pointer;
  transition:background .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.btn:hover{background:var(--amber-hi);transform:translateY(-1px);box-shadow:0 10px 24px rgba(233,161,59,.24)}
.btn:active{background:var(--amber-lo);transform:translateY(0);box-shadow:none}
.btn--ghost{background:transparent;color:var(--ink);border-color:rgba(246,243,238,.24)}
.btn--ghost:hover{background:transparent;color:var(--amber);border-color:var(--amber);box-shadow:none;transform:translateY(-1px)}
.btn--sm{height:34px;padding:0 18px;font-size:13px}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0;position:relative}
.section--alt{background:#0E1014;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section__eyebrow{display:block;font-family:var(--font-num);font-size:12px;letter-spacing:.18em;color:var(--celadon);margin-bottom:14px}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px;flex-wrap:wrap}
.section__head h2{font-size:clamp(24px,3.2vw,40px)}
.section__desc{color:var(--muted);font-size:15.5px;margin-top:14px;max-width:56em}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;
  font-size:11.5px;letter-spacing:.08em;border:1px solid var(--celadon);color:var(--celadon);
  white-space:nowrap;
}
.badge--amber{background:var(--amber);border-color:var(--amber);color:#0B0C0F;font-weight:800}

.link-cta{display:inline-flex;align-items:center;gap:8px;color:var(--amber);font-weight:700;font-size:14.5px;margin-top:26px}
.link-cta i{transition:transform .24s var(--ease)}
.link-cta:hover{color:var(--amber-hi)}
.link-cta:hover i{transform:translateX(4px)}

/* ---------- 分类 Hero ---------- */
.cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:#0B0C0F}
.cat-hero__bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.34}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(11,12,15,.96) 0%,rgba(11,12,15,.74) 48%,rgba(11,12,15,.46) 100%),
    linear-gradient(180deg,rgba(11,12,15,.36) 0%,rgba(11,12,15,.98) 100%);
}
.cat-hero__inner{position:relative;z-index:2;padding-top:92px;padding-bottom:78px}
.cat-hero h1{font-size:clamp(32px,4.6vw,56px);margin-top:20px;max-width:17em}
.cat-hero__lead{font-size:17px;line-height:1.85;color:#C9CDD3;max-width:46em;margin-top:20px}
.cat-hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.cat-hero__meta{
  display:flex;flex-wrap:wrap;gap:34px;margin-top:38px;padding-top:22px;
  border-top:1px solid rgba(246,243,238,.1);font-size:13px;color:var(--muted);
}
.cat-hero__meta .num{font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--amber);margin-right:6px;vertical-align:-2px}

/* ---------- 编辑精选片单（之字形） ---------- */
.zig{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:56px;align-items:center;padding:48px 0;border-bottom:1px solid var(--line);
}
.zig:last-child{border-bottom:0}
.zig__media{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid rgba(246,243,238,.08);background:var(--panel);
}
.zig__media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.zig:hover .zig__media{border-color:rgba(233,161,59,.5)}
.zig:hover .zig__media img{transform:scale(1.04)}
.zig:nth-child(1) .zig__media{aspect-ratio:21/10}
.zig:nth-child(2) .zig__media{aspect-ratio:16/9}
.zig:nth-child(3) .zig__media{aspect-ratio:4/3}
.zig:nth-child(4) .zig__media{aspect-ratio:21/9}
.zig--flip .zig__media{order:2}
.zig--flip .zig__body{order:1}
.zig__idx{display:block;font-family:var(--font-num);font-size:13px;letter-spacing:.16em;color:var(--amber);margin-bottom:12px}
.zig__body h3{font-size:22px;line-height:1.3}
.zig__body > p{color:var(--muted);font-size:15.5px;margin-top:14px}
.zig__list{margin-top:22px;border-top:1px solid var(--line);padding-top:18px}
.zig__list li{position:relative;padding-left:18px;font-size:14.5px;color:#C4C9CF;margin-bottom:12px}
.zig__list li:last-child{margin-bottom:0}
.zig__list li::before{content:"";position:absolute;left:0;top:.68em;width:6px;height:6px;border-radius:2px;background:var(--amber)}

/* ---------- 场景卡片 ---------- */
.scene{
  height:100%;padding:28px 24px;border-radius:var(--radius);background:var(--panel);
  border:1px solid rgba(246,243,238,.08);
  transition:border-color .3s var(--ease),transform .3s var(--ease),background .3s var(--ease);
}
.scene:hover{border-color:rgba(233,161,59,.6);transform:translateY(-4px)}
.scene__icon{
  display:grid;place-items:center;width:44px;height:44px;border-radius:12px;
  background:rgba(111,211,199,.12);color:var(--celadon);font-size:17px;margin-bottom:18px;
}
.scene h3{font-size:18px;line-height:1.4}
.scene p{color:var(--muted);font-size:14.5px;margin-top:12px}
.scene__tag{display:block;margin-top:18px;font-family:var(--font-num);font-size:12px;letter-spacing:.12em;color:var(--celadon)}
.scene-grid > .cell:nth-child(even) .scene{margin-top:26px}

/* ---------- 流程步骤 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:flowstep}
.flow__step{
  padding:30px 24px;border-radius:var(--radius);background:var(--panel-soft);
  border:1px solid var(--line);transition:border-color .3s var(--ease),transform .3s var(--ease);
}
.flow__step:hover{border-color:rgba(233,161,59,.55);transform:translateY(-3px)}
.flow__step::before{
  counter-increment:flowstep;content:"0" counter(flowstep);
  display:block;font-family:var(--font-num);font-weight:700;font-size:30px;
  color:rgba(233,161,59,.4);margin-bottom:14px;line-height:1;
}
.flow__step h3{font-size:18px;line-height:1.4}
.flow__step p{color:var(--muted);font-size:14.5px;margin-top:12px}

/* ---------- FAQ ---------- */
.faq{background:transparent;border:0;margin:0;padding:0;list-style:none}
.faq .accordion-item{background:transparent;border-bottom:1px solid var(--line)}
.faq .accordion-item:first-child{border-top:1px solid var(--line)}
.faq .accordion-title{
  position:relative;display:block;background:transparent;border:0;color:var(--ink);
  font-size:16px;font-weight:700;padding:22px 48px 22px 0;line-height:1.6;
  transition:color .22s var(--ease);
}
.faq .accordion-title::before{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  color:var(--amber);font-size:13px;transition:transform .3s var(--ease);
}
.faq .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg)}
.faq .accordion-title:hover,.faq .accordion-title:focus{background:transparent;color:var(--amber)}
.faq .accordion-content{
  background:transparent;border:0;color:#C4C9CF;font-size:15px;line-height:1.85;
  padding:0 44px 24px 0;
}

/* ---------- CTA 带 ---------- */
.cta-band{position:relative;overflow:hidden;background:#0B0C0F;border-top:1px solid var(--line)}
.cta-band__bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.26}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,12,15,.96),rgba(11,12,15,.82))}
.cta-band__inner{
  position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;
  gap:56px;align-items:center;padding-top:88px;padding-bottom:88px;
}
.cta-band h2{font-size:clamp(24px,3.2vw,38px)}
.cta-band__copy p{color:var(--muted);font-size:15.5px;margin-top:16px;max-width:40em}
.cta-form{display:flex;flex-wrap:wrap;gap:12px}
.cta-form input{
  flex:1 1 260px;height:48px;padding:0 16px;border-radius:10px;
  background:var(--panel-soft);border:1px solid var(--line);color:var(--ink);font-size:15px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.cta-form input::placeholder{color:var(--muted)}
.cta-form input:focus{outline:none;border-color:var(--amber);box-shadow:0 0 0 3px rgba(233,161,59,.18)}
.cta-form input.is-error{border-color:var(--error)}
.cta-form__tip{flex:1 1 100%;font-size:12.5px;color:var(--muted);margin:0}

/* ---------- 相关分类 ---------- */
.rel-card{
  display:block;height:100%;padding:26px 24px;border-radius:var(--radius);
  background:var(--panel);border:1px solid rgba(246,243,238,.08);
  transition:border-color .3s var(--ease),transform .3s var(--ease),background .3s var(--ease);
}
.rel-card:hover{border-color:rgba(233,161,59,.6);transform:translateY(-3px);background:#181B21}
.rel-card__idx{display:block;font-family:var(--font-num);font-size:12px;letter-spacing:.16em;color:var(--celadon)}
.rel-card h3{font-size:18px;margin-top:14px}
.rel-card p{color:var(--muted);font-size:14px;margin-top:10px}
.rel-card.is-current{border-color:rgba(233,161,59,.55)}
.rel-card.is-current::after{content:"当前页面";display:inline-block;margin-top:14px;font-size:12px;color:var(--amber)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:76px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px}
.footer-brand .brand{align-items:center}
.footer-brand p{color:var(--muted);font-size:13.5px;line-height:1.9;margin:16px 0 14px;max-width:36em}
.footer-domain{font-family:var(--font-num);font-size:13px;letter-spacing:.06em;color:#6B7078}
.footer-title{font-size:14px;font-weight:800;color:var(--amber);letter-spacing:.04em;margin-bottom:18px}
.footer-links li{margin-bottom:10px}
.footer-links a{display:inline-block;font-size:13px;color:var(--muted);transition:color .22s var(--ease),transform .22s var(--ease)}
.footer-links a:hover{color:var(--ink);transform:translateX(2px)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:58px;padding:22px 0;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--muted);
}
.to-top{display:inline-flex;align-items:center;gap:8px;color:var(--muted)}
.to-top:hover{color:var(--amber)}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.in{opacity:1;transform:none}

@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- 平板 ---------- */
@media (max-width:1023px){
  .grid-container{padding-left:40px;padding-right:40px}
  .section{padding:72px 0}
  .header__inner{height:68px}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:272px;margin-left:0;
    background:#0E1014;border-left:1px solid var(--line);
    flex-direction:column;align-items:flex-start;gap:0;
    padding:96px 28px 40px;transform:translateX(100%);
    transition:transform .24s var(--ease);z-index:80;overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav a{width:100%;padding:15px 0;font-size:16px;border-bottom:1px solid var(--line);color:var(--ink)}
  .main-nav a::after{display:none}
  .main-nav a.active{color:var(--amber)}
  .nav-toggle{display:inline-flex}
  .zig{grid-template-columns:1fr;gap:28px;padding:40px 0}
  .zig--flip .zig__media{order:0}
  .zig--flip .zig__body{order:0}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band__inner{grid-template-columns:1fr;gap:32px;padding-top:72px;padding-bottom:72px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .scene-grid > .cell:nth-child(even) .scene{margin-top:0}
}

/* ---------- 手机 ---------- */
@media (max-width:639px){
  .grid-container{padding-left:20px;padding-right:20px}
  .section{padding:56px 0}
  .topbar__note{display:none}
  .topbar__actions{margin-left:auto}
  .cat-hero__inner{padding-top:56px;padding-bottom:56px}
  .cat-hero__lead{font-size:15.5px}
  .cat-hero__meta{gap:20px;font-size:12.5px}
  .cat-hero__meta .num{font-size:19px}
  .section__head{margin-bottom:32px;gap:16px}
  .btn{height:44px;padding:0 20px;font-size:14.5px}
  .btn--sm{height:32px;padding:0 14px;font-size:12.5px}
  .zig__body h3{font-size:19px}
  .flow{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:34px}
  .cta-band__inner{padding-top:56px;padding-bottom:56px}
  .cta-form input{flex:1 1 100%}
  .faq .accordion-title{font-size:15px;padding-right:40px}
  .faq .accordion-content{padding-right:24px}
}

/* roulang page: category4 */
:root{
  --bg:#0B0C0F;
  --bg-deep:#08090B;
  --panel:#15171C;
  --panel-2:#101216;
  --line:#2A2E36;
  --line-soft:rgba(246,243,238,.08);
  --ink:#F6F3EE;
  --ink-dim:#9AA0AA;
  --amber:#E9A13B;
  --amber-hover:#F2B85C;
  --amber-press:#C7842A;
  --celadon:#6FD3C7;
  --celadon-deep:#2F6F6B;
  --danger:#E5555A;
  --radius-card:16px;
  --radius-btn:999px;
  --radius-input:10px;
  --shadow-amber:0 10px 24px rgba(233,161,59,.24);
  --maxw:1280px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --font-num:'Archivo','Barlow Condensed',sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .24s var(--ease);}
a:hover{color:var(--amber);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px;}

h1,h2,h3{font-weight:800;letter-spacing:-.02em;line-height:1.12;}
h1{font-size:clamp(38px,5.2vw,72px);}
h2{font-size:clamp(24px,3.2vw,40px);}
h3{font-size:21px;}

.grid-container{
  max-width:var(--maxw);
  margin:0 auto;
  padding-left:96px;
  padding-right:96px;
  width:100%;
}

/* ---------- 顶部信息条 ---------- */
.site-header{position:relative;z-index:80;}

.topbar{
  background:var(--bg-deep);
  border-bottom:1px solid var(--line);
  font-size:12px;
  letter-spacing:.02em;
}
.topbar__inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:38px;
}
.topbar__domain{
  color:var(--ink-dim);
  font-family:var(--font-num);
  letter-spacing:.08em;
  white-space:nowrap;
}
.topbar__notice{
  flex:1;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  color:var(--ink-dim);
  text-align:center;
}
.topbar__notice .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--celadon);
  box-shadow:0 0 0 3px rgba(111,211,199,.16);
  flex:0 0 auto;
}
.topbar__close{
  color:var(--ink-dim);
  font-size:15px;
  line-height:1;
  padding:4px 6px;
  border-radius:6px;
}
.topbar__close:hover{color:var(--amber);}
.topbar__actions{display:flex;align-items:center;gap:14px;}
.topbar__login{color:var(--ink-dim);white-space:nowrap;}
.topbar__login:hover{color:var(--ink);}

/* ---------- 主导航 ---------- */
.navbar{
  position:sticky;
  top:0;
  z-index:70;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease),background .3s var(--ease);
}
.navbar.is-stuck{box-shadow:0 12px 30px rgba(0,0,0,.45);}
.navbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  min-height:72px;
}

.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand__mark{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(140deg,var(--amber),var(--amber-press));
  color:#0B0C0F;
  font-weight:900;
  font-size:15px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:.02em;
}
.brand__text{display:flex;flex-direction:column;line-height:1.1;}
.brand__main{font-size:17px;font-weight:800;letter-spacing:.02em;}
.brand__sub{font-size:11px;letter-spacing:.2em;color:var(--ink-dim);margin-top:3px;}

.main-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.main-nav a{
  position:relative;
  padding:10px 14px;
  font-size:14.5px;
  letter-spacing:.02em;
  color:var(--ink-dim);
  border-radius:8px;
}
.main-nav a::after{
  content:'';
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  background:var(--amber);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .28s var(--ease);
}
.main-nav a:hover{color:var(--ink);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--ink);font-weight:700;}
.main-nav a.active::after{transform:scaleX(1);}

.nav-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line);
  color:var(--ink-dim);
  display:flex;align-items:center;justify-content:center;
  transition:.24s var(--ease);
}
.icon-btn:hover{color:var(--amber);border-color:var(--amber);}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:10px;
  border:1px solid var(--line);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.24s var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 26px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  white-space:nowrap;
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.btn--primary{
  background:var(--amber);
  color:#0B0C0F;
}
.btn--primary:hover{
  background:var(--amber-hover);
  color:#0B0C0F;
  transform:translateY(-1px);
  box-shadow:var(--shadow-amber);
}
.btn--primary:active{background:var(--amber-press);transform:translateY(0);}
.btn--ghost{
  border:1px solid rgba(246,243,238,.24);
  color:var(--ink);
  background:transparent;
}
.btn--ghost:hover{border-color:var(--amber);color:var(--amber);transform:translateY(-1px);}
.btn--sm{height:40px;padding:0 20px;font-size:14px;}
.btn--xs{height:32px;padding:0 16px;font-size:12.5px;}
.btn--block{width:100%;}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--amber);
  font-size:14px;
  font-weight:700;
}
.link-arrow i{transition:transform .24s var(--ease);font-size:12px;}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- 徽章与标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:6px;
  font-size:11.5px;
  letter-spacing:.08em;
  border:1px solid rgba(111,211,199,.5);
  color:var(--celadon);
  background:rgba(111,211,199,.06);
  white-space:nowrap;
}
.badge--amber{
  background:var(--amber);
  border-color:var(--amber);
  color:#0B0C0F;
  font-weight:700;
}
.badge--plain{
  border-color:var(--line);
  color:var(--ink-dim);
  background:transparent;
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:60vh;
  display:flex;
  align-items:flex-end;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:'';
  position:absolute;
  inset:0;
  background:
    linear-gradient(90deg,rgba(11,12,15,.95) 0%,rgba(11,12,15,.82) 42%,rgba(11,12,15,.42) 100%),
    linear-gradient(180deg,rgba(11,12,15,.85) 0%,rgba(11,12,15,.15) 34%,rgba(11,12,15,.96) 100%);
}
.hero__inner{position:relative;z-index:2;padding:112px 0 72px;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--ink-dim);
  margin-bottom:24px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.breadcrumb a:hover{color:var(--amber);}
.breadcrumb span.sep{color:#4A4F59;}
.breadcrumb .current{color:var(--amber);}

.hero h1{max-width:16em;}
.hero__sub{
  margin-top:20px;
  max-width:640px;
  font-size:17px;
  color:var(--ink-dim);
}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero__meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:28px;
  margin-top:36px;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  color:var(--ink-dim);
}
.hero__meta b{
  font-family:var(--font-num);
  font-size:20px;
  color:var(--ink);
  margin-right:6px;
  letter-spacing:.02em;
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--panel{background:var(--panel-2);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:44px;
}
.section-head__text{max-width:760px;}
.section-head .eyebrow{
  display:block;
  font-family:var(--font-num);
  font-size:12px;
  letter-spacing:.16em;
  color:var(--amber);
  text-transform:uppercase;
  margin-bottom:12px;
}
.section-head p{margin-top:14px;color:var(--ink-dim);font-size:15.5px;}

/* ---------- 步骤卡 ---------- */
.steps-grid{margin-bottom:-24px;}
.step-card{
  position:relative;
  height:100%;
  background:var(--panel);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-card);
  padding:32px 28px 28px;
  margin-bottom:24px;
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.step-card:hover{transform:translateY(-3px);border-color:rgba(233,161,59,.6);}
.step-card__num{
  font-family:var(--font-num);
  font-size:44px;
  font-weight:700;
  line-height:1;
  color:rgba(233,161,59,.85);
  letter-spacing:.02em;
  display:block;
  margin-bottom:18px;
}
.step-card h3{margin-bottom:12px;}
.step-card p{color:var(--ink-dim);font-size:15px;}
.step-card__tip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:20px;
  padding:8px 12px;
  border-radius:8px;
  background:rgba(111,211,199,.08);
  border:1px solid rgba(111,211,199,.24);
  color:var(--celadon);
  font-size:13px;
}
.step-card__tip i{font-size:11px;}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;}
.split__media{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--panel);
}
.split__media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .6s var(--ease);}
.split__media:hover img{transform:scale(1.04);}
.split__media figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:32px 22px 16px;
  font-size:13px;
  color:var(--ink-dim);
  background:linear-gradient(180deg,rgba(11,12,15,0) 0%,rgba(11,12,15,.92) 72%);
}
.split__body h2{margin-bottom:18px;}
.split__body > p{color:var(--ink-dim);font-size:16px;margin-bottom:26px;}

.check-list{display:grid;gap:14px;}
.check-list li{
  display:flex;
  gap:14px;
  padding:16px 18px;
  background:var(--panel);
  border:1px solid var(--line-soft);
  border-radius:12px;
  transition:border-color .24s var(--ease),transform .24s var(--ease);
}
.check-list li:hover{border-color:rgba(233,161,59,.5);transform:translateX(3px);}
.check-list i{color:var(--celadon);font-size:13px;margin-top:6px;}
.check-list b{display:block;font-size:15.5px;margin-bottom:4px;}
.check-list span{color:var(--ink-dim);font-size:14px;}

/* ---------- 数据块 ---------- */
.stat-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  margin-top:56px;
}
.stat{
  background:var(--panel);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-card);
  padding:26px 24px;
}
.stat strong{
  display:block;
  font-family:var(--font-num);
  font-size:34px;
  line-height:1.1;
  color:var(--amber);
  letter-spacing:.02em;
}
.stat span{display:block;margin-top:10px;color:var(--ink-dim);font-size:14px;}

/* ---------- 设置对照表 ---------- */
.spec-list{border-top:1px solid var(--line);}
.spec-row{
  display:grid;
  grid-template-columns:220px 1fr;
  gap:32px;
  padding:24px 4px;
  border-bottom:1px solid var(--line);
  align-items:start;
  transition:background .24s var(--ease);
}
.spec-row:hover{background:rgba(233,161,59,.04);}
.spec-row dt{
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  display:flex;
  align-items:center;
  gap:10px;
}
.spec-row dt i{color:var(--amber);font-size:13px;}
.spec-row dd{color:var(--ink-dim);font-size:15px;line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;}
.accordion{
  background:transparent;
  border:0;
  margin:0;
}
.accordion-item{
  background:var(--panel);
  border:1px solid var(--line-soft);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .24s var(--ease);
}
.accordion-item:hover{border-color:rgba(233,161,59,.45);}
.accordion-title{
  position:relative;
  display:block;
  padding:20px 60px 20px 24px;
  font-size:16px;
  font-weight:700;
  color:var(--ink);
  border:0;
  line-height:1.5;
}
.accordion-title:hover{color:var(--amber);background:transparent;}
.accordion-title::before{
  content:'+';
  position:absolute;
  right:24px;
  top:50%;
  transform:translateY(-50%);
  font-family:var(--font-num);
  font-size:24px;
  font-weight:400;
  color:var(--amber);
  transition:transform .28s var(--ease);
}
.is-active > .accordion-title::before{transform:translateY(-50%) rotate(45deg);}
.accordion-content{
  background:var(--panel-2);
  border-top:1px solid var(--line);
  padding:20px 24px 24px;
  color:var(--ink-dim);
  font-size:15px;
  line-height:1.85;
}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;
}
.cta-band::before{content:'';position:absolute;inset:0;background:rgba(8,9,11,.82);}
.cta-band__inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1fr 420px;
  gap:56px;
  align-items:center;
  padding:88px 0;
}
.cta-band h2{margin-bottom:16px;}
.cta-band p{color:var(--ink-dim);font-size:15.5px;max-width:520px;}

.subscribe{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
}
.subscribe label{
  display:block;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--ink-dim);
  margin-bottom:12px;
}
.subscribe .field-row{display:flex;gap:12px;}
.subscribe input{
  flex:1;
  height:48px;
  padding:0 16px;
  background:var(--panel-2);
  border:1px solid var(--line);
  border-radius:var(--radius-input);
  color:var(--ink);
  font-size:15px;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.subscribe input::placeholder{color:var(--ink-dim);}
.subscribe input:focus{
  outline:none;
  border-color:var(--amber);
  box-shadow:0 0 0 3px rgba(233,161,59,.18);
}
.subscribe .hint{
  margin-top:14px;
  font-size:12.5px;
  color:var(--ink-dim);
  line-height:1.7;
}

/* ---------- 相关分类 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.rel-card{
  display:block;
  padding:26px 24px;
  background:var(--panel);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-card);
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(233,161,59,.6);color:inherit;}
.rel-card__num{
  font-family:var(--font-num);
  font-size:12px;
  letter-spacing:.16em;
  color:var(--amber);
  display:block;
  margin-bottom:14px;
}
.rel-card h3{font-size:18px;margin-bottom:10px;}
.rel-card p{color:var(--ink-dim);font-size:14px;line-height:1.7;}
.rel-card--current{border-color:rgba(233,161,59,.7);background:rgba(233,161,59,.06);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--line);
  padding-top:72px;
  font-size:13px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:44px;
  padding-bottom:52px;
  border-bottom:1px solid var(--line);
}
.footer-brand p{color:var(--ink-dim);line-height:1.85;margin-top:4px;max-width:360px;}
.footer-domain{
  display:inline-block;
  margin-top:16px;
  font-family:var(--font-num);
  letter-spacing:.08em;
  color:var(--ink-dim);
  font-size:12px;
}
.footer-title{
  font-size:14px;
  font-weight:700;
  color:var(--amber);
  margin-bottom:18px;
  letter-spacing:.04em;
}
.footer-links li{margin-bottom:12px;}
.footer-links a{
  color:var(--ink-dim);
  display:inline-block;
  transition:transform .24s var(--ease),color .24s var(--ease);
}
.footer-links a:hover{color:var(--ink);transform:translateX(2px);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:26px 0 34px;
  color:var(--ink-dim);
  font-size:12.5px;
  flex-wrap:wrap;
}
.to-top{color:var(--ink-dim);display:inline-flex;align-items:center;gap:8px;}
.to-top:hover{color:var(--amber);}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .grid-container{padding-left:40px;padding-right:40px;}
  .section{padding:72px 0;}
  .hero__inner{padding:96px 0 60px;}
  .cta-band__inner{grid-template-columns:1fr;gap:36px;padding:72px 0;}
  .spec-row{grid-template-columns:180px 1fr;gap:24px;}
}

@media (max-width:1024px){
  .main-nav{
    position:absolute;
    top:100%;
    left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    background:var(--bg-deep);
    border-bottom:1px solid var(--line);
    padding:10px 40px 18px;
    display:none;
  }
  .main-nav.is-open{display:flex;}
  .main-nav a{padding:14px 4px;border-bottom:1px solid rgba(42,46,54,.7);border-radius:0;}
  .main-nav a::after{left:4px;right:auto;width:34px;bottom:8px;}
  .navbar__inner{position:relative;min-height:66px;}
  .nav-toggle{display:flex;}
  .nav-tools .btn{display:none;}
  .split{grid-template-columns:1fr;gap:36px;}
  .rel-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .stat-row{grid-template-columns:repeat(3,1fr);gap:16px;}
}

@media (max-width:768px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .topbar__notice{display:none;}
  .hero{min-height:58vh;}
  .hero__inner{padding:72px 0 48px;}
  .hero__sub{font-size:15.5px;}
  .hero__meta{gap:20px;}
  .hero__meta b{font-size:18px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px;}
  .stat-row{grid-template-columns:1fr;margin-top:36px;}
  .spec-row{grid-template-columns:1fr;gap:8px;padding:20px 2px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .rel-grid{grid-template-columns:1fr;}
  .subscribe .field-row{flex-direction:column;}
  .subscribe .btn{width:100%;}
  .step-card{padding:26px 22px 24px;}
  .step-card__num{font-size:36px;}
}

@media (max-width:520px){
  h1{font-size:clamp(30px,8vw,40px);}
  .hero__actions .btn{width:100%;}
  .hero__actions{gap:12px;}
  .cta-band__inner{padding:56px 0;}
  .subscribe{padding:22px;}
}

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

.fade-in{opacity:0;transform:translateY(12px);animation:fadeUp .42s var(--ease) forwards;}
.fade-in.d1{animation-delay:.06s;}
.fade-in.d2{animation-delay:.12s;}
.fade-in.d3{animation-delay:.18s;}
@keyframes fadeUp{to{opacity:1;transform:translateY(0);}}
@media (prefers-reduced-motion:reduce){
  .fade-in{opacity:1;transform:none;animation:none;}
}