/* roulang page: index */
:root{
  --ink-900:#12101F;
  --ink-800:#1B1830;
  --nebula-600:#5C4C9E;
  --starlight-400:#F0B45A;
  --starlight-600:#D99A33;
  --aurora-400:#78C7BE;
  --paper-50:#F7F5F0;
  --card:#FFFFFF;
  --line:#E6E1D7;
  --tx:#1E1B2C;
  --tx-sub:#5A5470;
  --tx-weak:#8B85A0;
  --on-dark:#F2EFFA;
  --on-dark-sub:#B6B0CC;
  --r-lg:18px;
  --r-md:16px;
  --r-sm:12px;
  --r-xs:10px;
  --shadow-1:0 1px 2px rgba(30,27,44,.05),0 10px 30px rgba(30,27,44,.07);
  --shadow-2:0 18px 44px rgba(30,27,44,.14);
  --shadow-dark:0 12px 32px rgba(12,10,24,.35);
  --section:clamp(56px,8vw,112px);
  --ease:cubic-bezier(.22,.61,.36,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --sans:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--tx);
  background:var(--paper-50);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
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{margin:0;font-family:var(--serif);font-weight:700;line-height:1.3}
p{margin:0}
time{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--starlight-400);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:80;padding:16px 0 10px;background:transparent}
.nav-panel{
  position:relative;
  display:flex;
  align-items:center;
  gap:18px;
  min-height:68px;
  padding:10px 12px 10px 18px;
  background:var(--ink-800);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-dark);
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:36px;height:36px;flex-shrink:0}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-family:var(--serif);font-size:19px;color:var(--on-dark);letter-spacing:.06em}
.brand-text em{font-style:normal;font-size:11px;color:var(--on-dark-sub);letter-spacing:.14em;margin-top:2px}
.nav-cards{display:flex;align-items:center;gap:6px;flex:1;min-width:0}
.nav-card{
  display:flex;align-items:center;gap:8px;
  height:42px;padding:0 14px;
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.06);
  color:var(--on-dark-sub);
  font-size:14px;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-card svg{width:16px;height:16px;flex-shrink:0;color:var(--nebula-600)}
.nav-card:hover{background:rgba(240,180,90,.14);color:var(--starlight-400)}
.nav-card:hover svg{color:var(--starlight-400)}
.nav-card.is-active{color:var(--starlight-400);box-shadow:inset 3px 0 0 var(--starlight-400)}
.nav-card.is-active svg{color:var(--starlight-400)}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.06);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--on-dark);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--on-dark);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.only-mobile{display:none}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-gold{background:var(--starlight-400);color:#1E1B2C;box-shadow:0 8px 20px rgba(240,180,90,.22)}
.btn-gold:hover{background:var(--starlight-600);transform:translateY(-2px);box-shadow:0 12px 26px rgba(240,180,90,.34)}
.btn-outline{border:1.5px solid rgba(255,255,255,.34);color:var(--on-dark)}
.btn-outline:hover{border-color:var(--starlight-400);color:var(--starlight-400);transform:translateY(-2px)}
.btn-outline-dark{border:1.5px solid var(--line);color:var(--tx)}
.btn-outline-dark:hover{border-color:var(--starlight-400);color:var(--starlight-600);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn:active{transform:translateY(0)}

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

/* ============ 徽章 ============ */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;line-height:1;letter-spacing:.02em}
.badge--purple{border:1px solid rgba(92,76,158,.5);color:var(--nebula-600);background:rgba(92,76,158,.07)}
.badge--gold{background:var(--starlight-400);color:#1E1B2C;font-weight:600}
.badge--mint{border:1px solid rgba(120,199,190,.55);color:#3E8B83;background:rgba(120,199,190,.10)}
.badge--plain{background:rgba(255,255,255,.10);color:var(--on-dark-sub);border:1px solid rgba(255,255,255,.16)}

/* ============ Hero ============ */
.hero{position:relative;display:flex;align-items:center;min-height:clamp(560px,86vh,760px);overflow:hidden;background:var(--ink-900);color:var(--on-dark);isolation:isolate}
.hero-media{position:absolute;inset:0;z-index:-1}
.hero-media img{width:100%;height:100%;object-fit:cover;object-position:center 40%}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,16,31,.34) 0%,rgba(18,16,31,.72) 55%,#12101F 100%)}
.hero-inner{display:flex;align-items:center;justify-content:space-between;gap:48px;width:100%;padding-top:72px;padding-bottom:96px}
.hero-copy{max-width:640px}
.hero-badge{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  border:1px solid rgba(240,180,90,.45);color:var(--starlight-400);
  font-size:12.5px;letter-spacing:.08em;margin-bottom:22px;
}
.hero h1{font-size:clamp(34px,5vw,56px);line-height:1.18;letter-spacing:.02em;color:#FFFFFF}
.hero-sub{margin-top:20px;font-size:17px;color:var(--on-dark-sub);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-meta{display:flex;flex-wrap:wrap;gap:0;margin-top:36px;font-size:14px;color:var(--on-dark-sub)}
.hero-meta li{display:flex;align-items:center}
.hero-meta li+li::before{content:"";width:1px;height:13px;background:rgba(255,255,255,.24);margin:0 14px}
.hero-poster{display:none;width:200px;flex-shrink:0;border-radius:var(--r-md);overflow:hidden;position:relative;box-shadow:0 20px 48px rgba(0,0,0,.5)}
.hero-poster img{width:100%;aspect-ratio:3/4;object-fit:cover}
.hero-poster figcaption{position:absolute;left:0;right:0;bottom:0;padding:34px 14px 14px;background:linear-gradient(180deg,rgba(18,16,31,0),rgba(18,16,31,.94));font-size:14px;line-height:1.5;color:#FFFFFF}
.hero-poster figcaption span{display:block;font-size:11px;color:var(--starlight-400);letter-spacing:.1em;margin-bottom:6px}
.hero-scroll{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:10px;font-size:12px;color:var(--on-dark-sub);letter-spacing:.14em}
.hero-scroll::before{content:"";width:1px;height:46px;background:linear-gradient(180deg,rgba(240,180,90,0),rgba(240,180,90,.55))}

/* ============ 深色区：横滑片库 ============ */
.shelf{background:var(--ink-900);color:var(--on-dark);padding:0 0 clamp(48px,6vw,76px);position:relative}
.shelf::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:190px 190px;opacity:.5;pointer-events:none;
}
.shelf .container{position:relative;z-index:1}
.shelf-top{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;padding-top:8px}
.shelf-top h2{font-size:clamp(22px,2.4vw,28px);color:#FFFFFF}
.shelf-top p{font-size:14px;color:var(--on-dark-sub);margin-top:8px}
.shelf-nav{display:flex;gap:10px}
.shelf-btn{
  width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.08);color:var(--on-dark);font-size:16px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.shelf-btn:hover{background:rgba(240,180,90,.22);color:var(--starlight-400)}
.shelf-track{
  display:flex;gap:20px;
  overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:6px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.shelf-track::-webkit-scrollbar{display:none}
.shelf-card{flex:0 0 240px;scroll-snap-align:start}
.shelf-card figure{position:relative;border-radius:var(--r-sm);overflow:hidden;background:var(--ink-800)}
.shelf-card img{width:100%;aspect-ratio:3/4;object-fit:cover;transition:transform .3s var(--ease)}
.shelf-card:hover img{transform:scale(1.04)}
.shelf-card figure::after{content:"";position:absolute;left:0;right:0;bottom:0;height:56%;background:linear-gradient(180deg,rgba(18,16,31,0),rgba(18,16,31,.88))}
.shelf-card .shelf-tag{position:absolute;left:12px;bottom:12px;z-index:1;font-size:12px;color:var(--starlight-400);letter-spacing:.04em}
.shelf-card h3{margin-top:12px;font-size:15px;line-height:1.5;font-family:var(--sans);font-weight:600;color:var(--on-dark);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.shelf-card:hover h3{color:var(--starlight-400)}

/* ============ 浅色区块基础 ============ */
.section{padding:var(--section) 0}
.section--paper{background:var(--paper-50)}
.section--white{background:#FFFFFF}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,3vw,32px);letter-spacing:.01em}
.section-head p{margin-top:10px;font-size:15px;color:var(--tx-sub);max-width:620px}
.section-head .link-arrow{white-space:nowrap;padding-bottom:6px}

/* ============ 热播推荐（1 大 + 4 小） ============ */
.feature-grid{display:grid;grid-template-columns:1fr;gap:28px}
.feature-main{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.feature-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(240,180,90,.5)}
.feature-main figure{position:relative;overflow:hidden}
.feature-main img{width:100%;height:clamp(220px,26vw,360px);object-fit:cover;transition:transform .3s var(--ease)}
.feature-main:hover img{transform:scale(1.03)}
.feature-main .feature-body{padding:24px}
.feature-main h3{font-size:clamp(22px,2.4vw,28px);line-height:1.35;margin-top:14px}
.feature-main p{margin-top:14px;font-size:16px;color:var(--tx-sub);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.feature-meta{display:flex;align-items:center;gap:14px;margin-top:20px;font-size:13px;color:var(--tx-weak)}
.feature-side{display:flex;flex-direction:column}
.feature-item{
  display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.feature-item:first-child{padding-top:0}
.feature-item:last-child{border-bottom:0;padding-bottom:0}
.feature-item img{width:112px;height:72px;object-fit:cover;border-radius:var(--r-xs);flex-shrink:0;transition:transform .3s var(--ease)}
.feature-item:hover img{transform:scale(1.04)}
.feature-item h3{font-size:16px;line-height:1.5;font-family:var(--sans);font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.feature-item:hover h3{color:var(--starlight-600)}
.feature-item time{display:block;margin-top:8px;font-size:13px;color:var(--tx-weak)}
@media (min-width:1024px){
  .feature-grid{grid-template-columns:7fr 5fr;gap:36px}
  .feature-side{border-left:1px solid var(--line);padding-left:32px}
}

/* ============ 三列卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr)}}
.card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(240,180,90,.5)}
.card figure{overflow:hidden}
.card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s var(--ease)}
.card:hover img{transform:scale(1.03)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.card-body h3{margin-top:12px;font-size:19px;line-height:1.5;font-family:var(--sans);font-weight:700}
.card-body p{margin-top:12px;font-size:15px;color:var(--tx-sub);flex:1}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:18px;font-size:13px;color:var(--tx-weak)}

/* ============ 横排图文列表（片单分区变体） ============ */
.flow-list{display:grid;gap:16px}
.flow-item{
  display:grid;grid-template-columns:1fr;gap:16px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px;box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.flow-item:hover{transform:translateY(-3px);border-color:rgba(240,180,90,.5);box-shadow:var(--shadow-2)}
.flow-item img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-sm)}
.flow-item h3{font-size:18px;font-family:var(--sans);font-weight:700;line-height:1.5}
.flow-item p{margin-top:10px;font-size:15px;color:var(--tx-sub)}
.flow-num{font-family:var(--serif);font-size:13px;color:var(--starlight-600);letter-spacing:.16em}
@media (min-width:768px){
  .flow-item{grid-template-columns:220px 1fr;align-items:center;gap:24px;padding:18px}
  .flow-item img{aspect-ratio:4/3}
}

/* ============ 最新信息（CMS） ============ */
.news-list{display:grid;gap:16px}
.news-card{
  display:grid;grid-template-columns:1fr;gap:16px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px;box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.news-card:hover{transform:translateY(-3px);border-color:rgba(240,180,90,.5);box-shadow:var(--shadow-2)}
.news-card__thumb{display:block;border-radius:var(--r-sm);overflow:hidden}
.news-card__thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s var(--ease)}
.news-card:hover .news-card__thumb img{transform:scale(1.03)}
.news-card__body{display:flex;flex-direction:column;align-items:flex-start}
.news-card__body .badge{margin-right:8px}
.news-card__title{margin-top:12px;font-size:18px;font-family:var(--sans);font-weight:700;line-height:1.55}
.news-card__title a:hover{color:var(--starlight-600)}
.news-card__desc{margin-top:10px;font-size:15px;color:var(--tx-sub);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;margin-top:16px;font-size:13px;color:var(--tx-weak)}
@media (min-width:768px){
  .news-card{grid-template-columns:200px 1fr;gap:24px;align-items:center}
  .news-card__thumb img{aspect-ratio:16/10}
}
.news-empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  min-height:220px;padding:36px 20px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--r-md);background:#FFFFFF;
}
.news-empty svg{width:80px;height:80px;color:var(--nebula-600);opacity:.7}
.news-empty p{font-size:15px;color:var(--tx-sub)}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-list{display:grid;gap:12px;margin-top:32px}
.faq-item{background:#FFFFFF;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.faq-item.is-open{border-color:rgba(240,180,90,.6);box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;text-align:left;font-size:17px;font-weight:600;line-height:1.6;
}
.faq-q .faq-icon{
  flex-shrink:0;width:22px;height:22px;position:relative;color:var(--starlight-600);
  transition:transform .24s var(--ease);
}
.faq-q .faq-icon::before,.faq-q .faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .faq-icon::before{width:14px;height:2px}
.faq-q .faq-icon::after{width:2px;height:14px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;opacity:0;overflow:hidden;transition:max-height .24s var(--ease),opacity .24s var(--ease)}
.faq-item.is-open .faq-a{max-height:340px;opacity:1}
.faq-a p{padding:0 22px 20px;font-size:16px;line-height:1.85;color:var(--tx-sub)}

/* ============ CTA 带 ============ */
.cta{
  position:relative;background:var(--ink-900);color:var(--on-dark);
  padding:clamp(64px,9vw,120px) 0;overflow:hidden;text-align:center;
}
.cta::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:170px 170px;opacity:.55;pointer-events:none;
}
.cta::after{
  content:"";position:absolute;left:-10%;right:-10%;top:52%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(240,180,90,.35),transparent);
  transform:rotate(-4deg);pointer-events:none;
}
.cta-inner{position:relative;z-index:1;max-width:760px;margin:0 auto}
.cta h2{font-size:clamp(28px,4vw,40px);line-height:1.28;color:#FFFFFF}
.cta p{margin-top:18px;font-size:16px;color:var(--on-dark-sub)}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:34px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:var(--on-dark-sub);padding:64px 0 28px;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:40px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}}
.footer-brand{display:flex;align-items:center;gap:12px}
.footer-brand strong{font-family:var(--serif);font-size:19px;color:var(--on-dark)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;max-width:280px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.18);color:var(--on-dark-sub);font-size:14px;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.footer-social a:hover{border-color:var(--starlight-400);color:var(--starlight-400);transform:translateY(-2px)}
.footer-col h4{font-family:var(--sans);font-size:15px;font-weight:700;color:var(--on-dark);letter-spacing:.04em}
.footer-col ul{margin-top:18px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;line-height:2;transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--starlight-400);text-decoration:underline;text-underline-offset:3px}
.footer-col p{font-size:14px;line-height:2}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8B85A0;
}

/* ============ 滚动显现 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ============ 响应式导航 ============ */
@media (max-width:1279px){
  .hero-inner{padding-top:56px;padding-bottom:88px}
}
@media (max-width:1023px){
  .nav-panel{flex-wrap:wrap;padding:10px 12px}
  .nav-cards{
    order:3;flex:1 0 100%;display:none;
    grid-template-columns:repeat(2,1fr);gap:10px;
    margin-top:12px;padding-top:14px;border-top:1px solid rgba(255,255,255,.10);
  }
  .nav-panel.is-open .nav-cards{display:grid}
  .nav-card{height:56px;justify-content:flex-start;font-size:14px}
  .nav-card.is-active{box-shadow:inset 3px 0 0 var(--starlight-400)}
  .only-mobile{display:flex}
  .nav-card--cta{background:rgba(240,180,90,.16);color:var(--starlight-400);font-weight:600}
  .nav-toggle{display:flex;margin-left:auto}
  .nav-cta{display:none}
  .brand{margin-right:auto}
  .brand-text em{font-size:10.5px}
}
@media (max-width:767px){
  .hero-poster{display:none}
  .hero-inner{padding-top:44px;padding-bottom:80px}
  .hero h1{font-size:clamp(28px,7.4vw,38px)}
  .hero-actions .btn{flex:1 1 100%}
  .hero-meta{margin-top:28px;font-size:13px}
  .shelf-card{flex:0 0 168px}
  .shelf-nav{display:none}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .footer-bottom{justify-content:flex-start}
}
@media (max-width:519px){
  .nav-cards{grid-template-columns:1fr}
  .hero-meta{flex-direction:column;gap:8px}
  .hero-meta li+li::before{display:none}
}

/* roulang page: article */
:root{
  --ink-900:#12101F;
  --ink-800:#1B1830;
  --ink-700:#2A2640;
  --nebula-600:#5C4C9E;
  --starlight-400:#F0B45A;
  --starlight-600:#D99A33;
  --aurora-400:#78C7BE;
  --paper-50:#F7F5F0;
  --surface:#FFFFFF;
  --line:#E6E1D7;
  --text-2:#5A5470;
  --text-3:#8B85A0;
  --light-1:#F2EFFA;
  --light-2:#B6B0CC;
  --r-lg:18px;
  --r-md:16px;
  --r-sm:12px;
  --r-xs:10px;
  --sh-card:0 1px 2px rgba(30,27,44,.05),0 10px 30px rgba(30,27,44,.07);
  --sh-hover:0 2px 6px rgba(30,27,44,.07),0 18px 44px rgba(30,27,44,.13);
  --sh-dark:0 12px 32px rgba(12,10,24,.35);
  --ease:200ms cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --sans:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --gutter:clamp(56px,8vw,112px);
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--paper-50);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg{display:block;max-width:100%}
img{height:auto;border:0}
a{color:var(--nebula-600);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease),transform var(--ease),box-shadow var(--ease)}
a:hover{color:var(--starlight-600)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:700;color:var(--ink-700);line-height:1.35;letter-spacing:.01em}
p{margin:0}
time,.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--starlight-400);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}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}

/* ============ 导航 ============ */
.site-header{position:sticky;top:16px;z-index:90}
.nav-panel{
  position:relative;
  display:flex;
  align-items:center;
  gap:14px;
  min-height:var(--nav-h);
  padding:10px 12px 10px 14px;
  background:var(--ink-800);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-dark);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;padding-right:10px;border-right:1px solid rgba(255,255,255,.10)}
.brand-mark{width:34px;height:34px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-family:var(--serif);font-size:17px;letter-spacing:.06em;color:var(--light-1)}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.14em;color:var(--light-2)}
.nav-cards{display:flex;align-items:center;gap:6px;flex:1 1 auto;min-width:0}
.nav-card{
  position:relative;
  display:inline-flex;align-items:center;gap:7px;
  height:44px;padding:0 13px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.06);
  color:var(--light-2);font-size:13.5px;white-space:nowrap;
  transition:background-color var(--ease),color var(--ease);
}
.nav-card svg{width:18px;height:18px;flex:0 0 auto}
.nav-card:hover{background:rgba(240,180,90,.14);color:var(--starlight-400)}
.nav-card.is-active{background:rgba(240,180,90,.13);color:var(--starlight-400);padding-left:18px}
.nav-card.is-active::before{content:"";position:absolute;left:8px;top:50%;transform:translateY(-50%);width:3px;height:20px;border-radius:3px;background:var(--starlight-400)}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  height:44px;padding:0 22px;border-radius:999px;
  background:var(--starlight-400);color:#1E1B2C;
  font-size:14px;font-weight:700;letter-spacing:.02em;white-space:nowrap;
  box-shadow:0 6px 18px rgba(240,180,90,.22);
}
.nav-cta:hover{background:var(--starlight-600);color:#1E1B2C;transform:translateY(-2px);box-shadow:0 12px 26px rgba(240,180,90,.32)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-sm);background:rgba(255,255,255,.06);align-items:center;justify-content:center;flex:0 0 auto}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--light-1);transition:background var(--ease)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--light-1);transition:transform var(--ease)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-panel.is-open .nav-toggle span{background:transparent}
.nav-panel.is-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
.nav-panel.is-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}

@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .nav-cards{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    display:none;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;
    padding:12px;
    background:var(--ink-800);
    border:1px solid rgba(255,255,255,.10);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-dark);
  }
  .nav-panel.is-open .nav-cards{display:grid}
  .nav-card{height:54px;justify-content:flex-start;font-size:14px;width:100%}
  .nav-card svg{width:20px;height:20px}
  .brand-text em{display:none}
}
@media (max-width:520px){
  .brand-text strong{font-size:15px}
  .brand-mark{width:30px;height:30px}
  .nav-cta{padding:0 14px;font-size:13px}
}

/* ============ 通用组件 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--starlight-400);color:#1E1B2C;box-shadow:0 8px 22px rgba(240,180,90,.24)}
.btn-primary:hover{background:var(--starlight-600);color:#1E1B2C;transform:translateY(-2px);box-shadow:0 14px 30px rgba(240,180,90,.34)}
.btn-ghost{border:1.5px solid rgba(30,27,44,.22);color:var(--ink-700);background:transparent}
.btn-ghost:hover{border-color:var(--starlight-400);color:var(--starlight-600);transform:translateY(-2px)}
.btn-ghost-light{border:1.5px solid rgba(255,255,255,.28);color:var(--light-1);background:transparent}
.btn-ghost-light:hover{border-color:var(--starlight-400);color:var(--starlight-400);transform:translateY(-2px)}
.btn:active{transform:translateY(0)}

.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:12px;letter-spacing:.03em;white-space:nowrap}
.badge-cat{color:var(--nebula-600);border:1px solid rgba(92,76,158,.38);background:rgba(92,76,158,.06)}
.badge-time{color:var(--text-2);border:1px solid var(--line);background:#FFF}
.badge-gold{background:var(--starlight-400);color:#1E1B2C;font-weight:700}
.badge-aurora{color:#2F7E75;border:1px solid rgba(120,199,190,.5);background:rgba(120,199,190,.12)}

.section{padding:var(--gutter) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section-head h2{font-size:clamp(24px,3vw,32px)}
.section-head p{margin-top:8px;font-size:15px;color:var(--text-2)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--nebula-600)}
.link-arrow i{font-style:normal;transition:transform var(--ease)}
.link-arrow:hover{color:var(--starlight-600)}
.link-arrow:hover i{transform:translateX(4px)}

/* ============ 面包屑 ============ */
.breadcrumb-wrap{padding:22px 0 0}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  padding:10px 16px;border-radius:var(--r-sm);
  background:#FFFFFF;border:1px solid var(--line);
  font-size:13px;color:var(--text-2);
}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--starlight-600)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .current{font-weight:700;color:var(--ink-700);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:60vw}

/* ============ 文章头部 ============ */
.post-head{padding:34px 0 0}
.post-cover{
  position:relative;margin:0;border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:16/9;background:linear-gradient(140deg,#1B1830,#332C5C 60%,#12101F);
  box-shadow:var(--sh-card);
}
.post-cover img{width:100%;height:100%;object-fit:cover}
.post-cover .cover-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,16,31,.08) 0%,rgba(18,16,31,.30) 58%,rgba(18,16,31,.78) 100%);
}
.post-cover .cover-tag{
  position:absolute;left:22px;bottom:20px;
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  background:rgba(240,180,90,.92);color:#1E1B2C;font-size:12px;font-weight:700;letter-spacing:.04em;
}
.post-head h1{
  margin:28px 0 0;max-width:820px;
  font-size:clamp(30px,3.4vw,40px);line-height:1.32;letter-spacing:.02em;
}
.post-meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-top:20px;padding-bottom:22px;border-bottom:1px solid var(--line);font-size:14px;color:var(--text-2)}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.post-meta .src{color:var(--text-3)}

/* ============ 布局 ============ */
.post-layout{display:grid;grid-template-columns:minmax(0,1fr) 322px;gap:52px;align-items:start;padding:36px 0 0}
.post-body{min-width:0;max-width:780px}
.post-aside{position:sticky;top:110px;display:flex;flex-direction:column;gap:18px}

/* ============ 正文 ============ */
.prose{font-size:17px;line-height:1.9;color:#2E2A44}
.prose > :first-child{margin-top:0}
.prose p{margin:0 0 24px}
.prose h2{font-size:clamp(22px,2.4vw,26px);margin:44px 0 18px;padding-left:16px;position:relative;line-height:1.4}
.prose h2::before{content:"";position:absolute;left:0;top:.32em;width:4px;height:1em;border-radius:3px;background:var(--starlight-400)}
.prose h3{font-size:20px;margin:32px 0 14px;line-height:1.5}
.prose h4{font-size:17px;margin:26px 0 12px}
.prose ul,.prose ol{margin:0 0 24px;padding-left:6px}
.prose ul li,.prose ol li{position:relative;padding-left:22px;margin-bottom:10px}
.prose ul li::before{content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--starlight-400)}
.prose ol{counter-reset:item}
.prose ol li{counter-increment:item}
.prose ol li::before{content:counter(item);position:absolute;left:0;top:.28em;width:18px;height:18px;border-radius:6px;background:rgba(92,76,158,.12);color:var(--nebula-600);font-size:12px;font-weight:700;line-height:18px;text-align:center;font-family:var(--sans)}
.prose blockquote{
  margin:26px 0;padding:18px 22px;
  background:var(--paper-50);
  border-left:3px solid var(--starlight-400);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--text-2);
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{width:100%;border-radius:var(--r-sm);margin:26px 0}
.prose figure{margin:26px 0}
.prose figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.prose a{color:var(--nebula-600);border-bottom:1px solid rgba(92,76,158,.35)}
.prose a:hover{color:var(--starlight-600);border-bottom-color:var(--starlight-400)}
.prose strong{color:var(--ink-700)}
.prose hr{margin:38px 0;border:0;border-top:1px solid var(--line)}
.prose table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;display:block;overflow-x:auto;white-space:nowrap}
.prose thead th{background:#F1EEE7;color:var(--ink-700);font-weight:600}
.prose th,.prose td{padding:12px 16px;border:1px solid var(--line);text-align:left}
.prose tbody tr:nth-child(even){background:#FCFBF8}

.empty-state{
  margin:10px 0 0;min-height:260px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  padding:36px 24px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--r-md);background:#FFFFFF;
}
.empty-state svg{width:74px;height:74px;color:var(--text-3)}
.empty-state h3{font-size:20px}
.empty-state p{color:var(--text-2);font-size:15px;max-width:400px}

/* ============ 标签 ============ */
.tag-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.tag-row .label{font-size:13px;color:var(--text-3);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  background:#FFFFFF;border:1px solid var(--line);font-size:13px;color:var(--text-2);
}
.tag:hover{border-color:rgba(240,180,90,.6);color:var(--starlight-600);transform:translateY(-2px)}

/* ============ 继续阅读 ============ */
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:34px}
.post-nav-card{
  display:block;padding:22px;
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-card);
}
.post-nav-card:hover{transform:translateY(-4px);border-color:rgba(240,180,90,.42);box-shadow:var(--sh-hover);color:var(--ink-700)}
.post-nav-card .kicker{font-size:12px;letter-spacing:.1em;color:var(--text-3)}
.post-nav-card strong{display:block;margin-top:10px;font-size:16px;font-family:var(--serif);line-height:1.5;color:var(--ink-700)}
.post-nav-card span.desc{display:block;margin-top:8px;font-size:13.5px;color:var(--text-2);line-height:1.7}

/* ============ 侧栏 ============ */
.aside-card{background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-md);padding:20px;box-shadow:var(--sh-card)}
.aside-card h3{font-size:15px;letter-spacing:.06em;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line);color:var(--ink-700)}
.aside-list li + li{margin-top:2px}
.aside-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:var(--r-xs);font-size:14px;color:var(--text-2);
}
.aside-list a:hover{background:var(--paper-50);color:var(--starlight-600);padding-left:16px}
.aside-list a i{font-style:normal;color:var(--text-3);transition:transform var(--ease)}
.aside-list a:hover i{transform:translateX(3px);color:var(--starlight-400)}
.aside-note{font-size:13px;color:var(--text-3);line-height:1.8;margin-top:14px}
.aside-promo{
  padding:24px;border-radius:var(--r-md);
  background:linear-gradient(150deg,#1B1830 0%,#2A2450 62%,#12101F 100%);
  border:1px solid rgba(255,255,255,.10);box-shadow:var(--sh-dark);
}
.aside-promo h3{color:var(--light-1);font-size:17px;line-height:1.5}
.aside-promo p{color:var(--light-2);font-size:13.5px;margin:12px 0 18px;line-height:1.8}
.aside-promo .btn{width:100%;height:44px;font-size:14px}

/* ============ 相关推荐 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-card);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(240,180,90,.42)}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(150deg,#1B1830,#3A3168)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease-out}
.card:hover .card-cover img{transform:scale(1.04)}
.card-cover .card-tag{
  position:absolute;left:12px;bottom:12px;height:26px;padding:0 12px;
  display:inline-flex;align-items:center;border-radius:999px;
  background:rgba(240,180,90,.92);color:#1E1B2C;font-size:12px;font-weight:700;
}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-body h3{font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body h3 a{color:var(--ink-700)}
.card-body h3 a:hover{color:var(--starlight-600)}
.card-body p{font-size:14.5px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.card-foot i{font-style:normal;transition:transform var(--ease);color:var(--nebula-600)}
.card:hover .card-foot i{transform:translateX(4px);color:var(--starlight-400)}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-900);
  border-top:1px solid rgba(255,255,255,.08);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.20) 1px,transparent 1px);
  background-size:44px 44px;opacity:.28;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;left:-10%;top:50%;width:120%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(240,180,90,.26),transparent);
  transform:rotate(-6deg);pointer-events:none;
}
.cta-inner{position:relative;z-index:1;max-width:760px;margin:0 auto;text-align:center;padding:clamp(64px,9vw,112px) 20px}
.cta-inner h2{color:var(--light-1);font-size:clamp(28px,3.6vw,40px);line-height:1.34}
.cta-inner p{color:var(--light-2);font-size:16px;margin:18px auto 30px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}

/* ============ 页脚 ============ */
.site-footer{margin-top:var(--gutter);background:var(--ink-900);border-top:1px solid rgba(255,255,255,.08);padding:64px 0 28px;color:var(--light-2)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:32px;height:32px}
.footer-brand strong{font-family:var(--serif);font-size:17px;color:var(--light-1);letter-spacing:.05em}
.site-footer p{font-size:14px;line-height:1.9;color:var(--light-2)}
.footer-social{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.footer-social a{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 18px;border-radius:999px;
  border:1.5px solid rgba(255,255,255,.18);color:var(--light-2);font-size:13px;
}
.footer-social a:hover{border-color:var(--starlight-400);color:var(--starlight-400);transform:translateY(-2px)}
.footer-col h4{font-size:15px;color:var(--light-1);margin-bottom:16px;letter-spacing:.06em}
.footer-col ul li a{display:inline-block;font-size:14px;line-height:2.1;color:var(--light-2)}
.footer-col ul li a:hover{color:var(--starlight-400);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:#8B85A0;
}

/* ============ 显现动效 ============ */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity 420ms ease-out,transform 420ms ease-out}
[data-reveal].is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  [data-reveal]{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .post-layout{grid-template-columns:minmax(0,1fr);gap:34px}
  .post-aside{position:static;order:2}
  .post-body{max-width:100%}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .prose{font-size:16.5px;line-height:1.9}
  .prose p{margin-bottom:22px}
  .breadcrumb .current{max-width:42vw}
  .post-head h1{margin-top:22px}
  .post-nav{grid-template-columns:minmax(0,1fr)}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  .post-cover{aspect-ratio:4/3}
  .post-cover .cover-tag{left:14px;bottom:14px}
  .aside-promo{padding:20px}
  .brand{padding-right:6px}
}

/* roulang page: category1 */
:root{
  --ink-900:#12101F;
  --ink-800:#1B1830;
  --nebula-600:#5C4C9E;
  --starlight-400:#F0B45A;
  --starlight-600:#D99A33;
  --aurora-400:#78C7BE;
  --paper-50:#F7F5F0;
  --paper-100:#F1EEE7;
  --line:#E6E1D7;
  --white:#FFFFFF;
  --text-ink:#1E1B2C;
  --text-ink-2:#5A5470;
  --text-ink-3:#8B85A0;
  --text-light:#F2EFFA;
  --text-light-2:#B6B0CC;
  --r-2xl:18px;
  --r-xl:16px;
  --r-lg:14px;
  --r-md:12px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-card:0 1px 2px rgba(30,27,44,.05),0 10px 30px rgba(30,27,44,.07);
  --sh-card-h:0 2px 8px rgba(30,27,44,.08),0 18px 44px rgba(30,27,44,.13);
  --sh-panel:0 12px 32px rgba(12,10,24,.35);
  --ease:cubic-bezier(.32,.72,.35,1);
  --sec-y:clamp(56px,8vw,112px);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text-ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--nebula-600);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--starlight-600);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);color:var(--text-ink);font-weight:700;letter-spacing:.02em;}
p{margin:0 0 22px;}
ul{margin:0;padding:0;list-style:none;}
time,.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--starlight-400);outline-offset:2px;}
.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;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media(min-width:768px){.container{padding:0 32px;}}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0 0;}
.nav-panel{
  display:flex;align-items:center;gap:16px;
  min-height:68px;padding:10px 16px;
  background:var(--ink-800);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-2xl);
  box-shadow:var(--sh-panel);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:38px;height:38px;flex:0 0 auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-family:var(--font-serif);font-size:19px;color:var(--text-light);letter-spacing:.06em;}
.brand-text em{font-style:normal;font-size:11px;color:var(--text-light-2);letter-spacing:.08em;margin-top:2px;}
.brand:hover .brand-text strong{color:var(--starlight-400);}

.nav-cards{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-card{
  display:flex;align-items:center;gap:8px;
  height:44px;padding:0 14px;
  border-radius:var(--r-md);
  background:rgba(255,255,255,.06);
  color:var(--text-light-2);
  font-size:14px;white-space:nowrap;
  position:relative;transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-card svg{width:20px;height:20px;flex:0 0 auto;color:var(--nebula-600);transition:color .2s var(--ease);}
.nav-card:hover{background:rgba(240,180,90,.14);color:var(--starlight-400);}
.nav-card:hover svg{color:var(--starlight-400);}
.nav-card.is-active{color:var(--starlight-400);background:rgba(240,180,90,.10);}
.nav-card.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:2px;background:var(--starlight-400);
}
.nav-cta{flex:0 0 auto;margin-left:8px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  border:1.5px solid transparent;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-gold{background:var(--starlight-400);color:var(--ink-900);box-shadow:0 6px 18px rgba(240,180,90,.22);}
.btn-gold:hover{background:var(--starlight-600);color:var(--ink-900);transform:translateY(-2px);box-shadow:0 10px 26px rgba(240,180,90,.32);}
.btn-ghost{background:transparent;border-color:rgba(242,239,250,.38);color:var(--text-light);}
.btn-ghost:hover{border-color:var(--starlight-400);color:var(--starlight-400);}
.btn-ghost-dark{background:transparent;border-color:var(--line);color:var(--text-ink);}
.btn-ghost-dark:hover{border-color:var(--starlight-400);color:var(--starlight-600);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}

.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  border:1px solid rgba(255,255,255,.14);border-radius:var(--r-md);
  background:rgba(255,255,255,.06);position:relative;
}
.nav-toggle span:not(.sr-only){
  position:absolute;left:12px;right:12px;height:2px;border-radius:2px;background:var(--text-light);
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.nav-toggle span:nth-child(1){top:15px;}
.nav-toggle span:nth-child(2){top:21px;}
.nav-toggle span:nth-child(3){top:27px;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

@media(max-width:1080px){
  .nav-toggle{display:block;}
  .nav-cta{display:none;}
  .nav-cards{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;
    padding:14px;margin:0;
    background:var(--ink-800);border:1px solid rgba(255,255,255,.10);
    border-radius:var(--r-2xl);box-shadow:var(--sh-panel);
    max-height:0;opacity:0;overflow:hidden;pointer-events:none;
    transition:max-height .24s var(--ease),opacity .24s var(--ease);
  }
  .nav-cards.is-open{max-height:420px;opacity:1;pointer-events:auto;}
  .nav-card{height:56px;justify-content:flex-start;background:rgba(255,255,255,.06);}
  .nav-panel{position:relative;}
}
@media(max-width:520px){
  .brand-text em{display:none;}
  .nav-cards{grid-template-columns:1fr;}
}

/* 面包屑 */
.crumb-bar{background:var(--paper-50);border-bottom:1px solid var(--line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-ink-3);padding:14px 0;}
.crumb a{color:var(--text-ink-2);}
.crumb a:hover{color:var(--starlight-600);}
.crumb .sep{color:#C8C2B6;}
.crumb strong{color:var(--text-ink);font-weight:600;}

/* 矮 Hero */
.page-hero{position:relative;overflow:hidden;background:var(--ink-900);}
.page-hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.55;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(18,16,31,.92) 0%,rgba(18,16,31,.72) 48%,rgba(18,16,31,.42) 100%);
}
.page-hero-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  min-height:380px;padding-top:48px;padding-bottom:48px;
}
.page-hero-main{max-width:620px;}
.badge-key{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(240,180,90,.55);
  color:var(--starlight-400);font-size:12px;letter-spacing:.1em;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(30px,4.4vw,48px);line-height:1.2;
  color:var(--text-light);letter-spacing:.02em;
}
.page-hero-sub{margin:16px 0 22px;font-size:17px;color:var(--text-light-2);max-width:520px;}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:var(--text-light-2);}
.hero-meta i{width:1px;height:13px;background:rgba(242,239,250,.28);display:inline-block;}
.page-hero-vertical{
  writing-mode:vertical-rl;text-orientation:upright;
  font-family:var(--font-serif);font-size:20px;letter-spacing:.42em;
  color:rgba(242,239,250,.72);
  padding-left:22px;border-left:1px solid rgba(240,180,90,.35);
  align-self:stretch;display:flex;align-items:center;justify-content:center;
}
@media(max-width:1023px){
  .page-hero-vertical{display:none;}
  .page-hero-inner{min-height:320px;padding-top:40px;padding-bottom:40px;}
}

/* 通用板块 */
.section{padding:var(--sec-y) 0;}
.section-paper{background:var(--paper-50);}
.section-white{background:var(--white);}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:34px;}
.sec-head h2{font-size:clamp(24px,3vw,32px);line-height:1.3;}
.sec-head p{margin:10px 0 0;color:var(--text-ink-2);font-size:16px;max-width:640px;}
.sec-link{font-size:15px;font-weight:600;color:var(--nebula-600);display:inline-flex;align-items:center;gap:6px;}
.sec-link:hover{color:var(--starlight-600);}
.sec-link::after{content:"→";transition:transform .2s var(--ease);}
.sec-link:hover::after{transform:translateX(4px);}

/* 卡片网格 */
.card-grid{display:grid;gap:20px;grid-template-columns:1fr;}
@media(min-width:768px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-xl);
  box-shadow:var(--sh-card);overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-h);border-color:rgba(240,180,90,.42);}
.card-media{position:relative;display:block;overflow:hidden;background:var(--ink-900);}
.card-media img{width:100%;aspect-ratio:3/4;object-fit:cover;transition:transform .3s var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-media::after{
  content:"";position:absolute;inset:auto 0 0 0;height:42%;
  background:linear-gradient(180deg,rgba(18,16,31,0) 0%,rgba(18,16,31,.72) 100%);
}
.card-tag{
  position:absolute;left:14px;bottom:12px;z-index:2;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(18,16,31,.62);border:1px solid rgba(240,180,90,.50);
  color:var(--starlight-400);font-size:12px;letter-spacing:.04em;
}
.card-body{padding:20px 22px 22px;}
.card-body h3{font-size:19px;line-height:1.55;margin-bottom:10px;font-family:var(--font-sans);font-weight:700;}
.card-body h3 a{color:var(--text-ink);}
.card-body h3 a:hover{color:var(--starlight-600);}
.card-body p{font-size:15px;line-height:1.82;color:var(--text-ink-2);margin:0 0 16px;}
.card-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-ink-3);border-top:1px solid var(--line);padding-top:14px;}
.card-foot .arrow{color:var(--starlight-400);font-size:16px;transition:transform .2s var(--ease);}
.card:hover .card-foot .arrow{transform:translateX(4px);}

/* 深色带 + 横滑 */
.band-dark{background:var(--ink-900);color:var(--text-light);position:relative;overflow:hidden;}
.band-dark::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(242,239,250,.16) 1px,transparent 1px);
  background-size:34px 34px;opacity:.5;pointer-events:none;
}
.band-dark .container{position:relative;z-index:2;}
.band-dark .sec-head h2{color:var(--text-light);}
.band-dark .sec-head p{color:var(--text-light-2);}
.band-dark .sec-link{color:var(--starlight-400);}
.band-dark .sec-link:hover{color:var(--starlight-600);}

.hscroll-wrap{position:relative;}
.hscroll{
  display:flex;gap:20px;overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:4px 2px 14px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.hscroll::-webkit-scrollbar{display:none;}
.hs-card{
  flex:0 0 168px;scroll-snap-align:start;color:var(--text-light);
  transition:transform .2s var(--ease);
}
@media(min-width:768px){.hs-card{flex:0 0 200px;}}
@media(min-width:1024px){.hs-card{flex:0 0 240px;}}
.hs-cover{position:relative;border-radius:var(--r-md);overflow:hidden;background:#241F3B;}
.hs-cover img{width:100%;aspect-ratio:3/4;object-fit:cover;transition:transform .3s var(--ease);}
.hs-card:hover .hs-cover img{transform:scale(1.04);}
.hs-cover::after{
  content:"";position:absolute;inset:auto 0 0 0;height:38%;
  background:linear-gradient(180deg,rgba(18,16,31,0) 0%,rgba(18,16,31,.80) 100%);
}
.hs-badge{
  position:absolute;left:10px;bottom:10px;z-index:2;
  font-size:12px;color:var(--starlight-400);letter-spacing:.04em;
}
.hs-card h3{
  font-family:var(--font-sans);font-size:15px;font-weight:600;line-height:1.5;
  color:var(--text-light);margin:12px 0 4px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.hs-card:hover h3{color:var(--starlight-400);}
.hs-card span.hs-note{font-size:13px;color:var(--text-light-2);}
.hs-btn{
  position:absolute;top:38%;width:44px;height:44px;border-radius:50%;
  display:none;align-items:center;justify-content:center;
  background:rgba(242,239,250,.14);color:var(--text-light);
  border:1px solid rgba(242,239,250,.20);font-size:20px;line-height:1;
  transition:background .2s var(--ease),color .2s var(--ease);z-index:3;
}
.hs-btn:hover{background:rgba(240,180,90,.28);color:var(--starlight-400);}
.hs-prev{left:-18px;}
.hs-next{right:-18px;}
@media(min-width:1024px){.hs-btn{display:flex;}}

/* 图文 + 步骤 */
.split{display:grid;gap:28px;grid-template-columns:1fr;align-items:center;}
@media(min-width:1024px){.split{grid-template-columns:5fr 7fr;gap:48px;}}
.split-media{border-radius:var(--r-2xl);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-card);background:var(--ink-900);}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.split-body h2{font-size:clamp(24px,3vw,32px);line-height:1.3;margin-bottom:16px;}
.split-body p{color:var(--text-ink-2);font-size:16px;}
.steps{display:grid;gap:14px;margin-top:24px;grid-template-columns:1fr;}
@media(min-width:768px){.steps{grid-template-columns:repeat(2,minmax(0,1fr));}}
.step{
  display:flex;gap:14px;padding:18px 20px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-card);transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.step:hover{border-color:rgba(240,180,90,.45);transform:translateY(-3px);}
.step-num{
  flex:0 0 auto;width:32px;height:32px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(92,76,158,.10);color:var(--nebula-600);
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.step h3{font-family:var(--font-sans);font-size:16px;font-weight:700;margin-bottom:6px;}
.step p{font-size:14px;line-height:1.78;color:var(--text-ink-2);margin:0;}

/* FAQ */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-card);margin-bottom:12px;overflow:hidden;
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:none;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--text-ink);font-family:var(--font-sans);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--starlight-600);}
.faq-icon{
  flex:0 0 auto;width:20px;height:20px;position:relative;transition:transform .24s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--starlight-400);border-radius:2px;
}
.faq-icon::before{left:0;right:0;top:9px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{
  max-height:0;opacity:0;overflow:hidden;
  transition:max-height .24s var(--ease),opacity .24s var(--ease);}
.faq-item.is-open .faq-a{max-height:320px;opacity:1;}
.faq-a p{padding:0 22px 20px;margin:0;font-size:16px;line-height:1.85;color:var(--text-ink-2);}

/* CTA */
.cta-band{
  background:var(--ink-900);color:var(--text-light);position:relative;overflow:hidden;
  padding:clamp(64px,9vw,120px) 0;text-align:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(242,239,250,.14) 1px,transparent 1px);
  background-size:38px 38px;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;left:-10%;top:0;width:120%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(240,180,90,.30),transparent);
}
.cta-inner{position:relative;z-index:2;max-width:760px;margin:0 auto;}
.cta-inner h2{color:var(--text-light);font-size:clamp(26px,3.4vw,38px);line-height:1.32;margin-bottom:16px;}
.cta-inner p{color:var(--text-light-2);font-size:17px;margin-bottom:30px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
@media(max-width:520px){.cta-actions .btn{width:100%;}}

/* 页脚 */
.site-footer{
  background:var(--ink-900);color:var(--text-light-2);
  border-top:1px solid rgba(255,255,255,.08);
  padding:64px 0 28px;font-size:14px;
}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{font-family:var(--font-serif);font-size:17px;color:var(--text-light);letter-spacing:.04em;}
.site-footer p{color:var(--text-light-2);font-size:14px;max-width:320px;}
.footer-social{display:flex;gap:10px;margin-top:18px;}
.footer-social a{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:56px;height:38px;padding:0 14px;
  border:1px solid rgba(242,239,250,.24);border-radius:var(--r-pill);
  color:var(--text-light-2);font-size:13px;
}
.footer-social a:hover{border-color:var(--starlight-400);color:var(--starlight-400);}
.footer-col h4{font-family:var(--font-sans);font-size:15px;color:var(--text-light);margin-bottom:16px;font-weight:700;}
.footer-col li{margin-bottom:0;}
.footer-col a{color:var(--text-light-2);font-size:14px;line-height:2.1;}
.footer-col a:hover{color:var(--starlight-400);text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--text-ink-3);
}

/* 滚动显现 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --ink-900:#12101F;
  --ink-800:#1B1830;
  --nebula-600:#5C4C9E;
  --starlight-400:#F0B45A;
  --starlight-600:#D99A33;
  --aurora-400:#78C7BE;
  --paper-50:#F7F5F0;
  --line:#E6E1D7;
  --text-dark:#1E1B2C;
  --text-sub:#5A5470;
  --text-weak:#8B85A0;
  --text-light:#F2EFFA;
  --text-light-sub:#B6B0CC;
  --radius-lg:18px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-xs:10px;
  --shadow-card:0 1px 2px rgba(30,27,44,.05),0 10px 30px rgba(30,27,44,.07);
  --shadow-hover:0 4px 10px rgba(30,27,44,.08),0 18px 44px rgba(30,27,44,.13);
  --shadow-dark:0 12px 32px rgba(12,10,24,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text-dark);
  background:var(--paper-50);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--nebula-600);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--starlight-600)}
button{font-family:inherit}
h1,h2,h3,h4{font-family:var(--font-serif);margin:0;color:var(--text-dark);letter-spacing:.02em}
p{margin:0 0 22px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
.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}
:focus-visible{outline:2px solid var(--starlight-400);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}

/* ---------- 导航 ---------- */
.site-header{padding:16px 0 0;position:relative;z-index:60}
.nav-panel{
  position:sticky;
  top:16px;
  display:flex;
  align-items:center;
  gap:18px;
  flex-wrap:wrap;
  background:var(--ink-800);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-dark);
  padding:12px 18px;
}
.brand{display:flex;align-items:center;gap:11px;color:var(--text-light);flex:0 0 auto}
.brand:hover{color:var(--text-light)}
.brand-mark{width:34px;height:34px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-family:var(--font-serif);font-size:17px;letter-spacing:.08em;color:var(--text-light)}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.14em;color:var(--text-light-sub)}
.nav-cards{display:flex;align-items:center;gap:8px;flex:1 1 auto;flex-wrap:wrap}
.nav-card{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:42px;
  padding:0 14px;
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.06);
  color:var(--text-light-sub);
  font-size:14px;
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.nav-card svg{width:18px;height:18px;flex:0 0 auto}
.nav-card:hover{background:rgba(240,180,90,.14);color:var(--starlight-400);transform:translateY(-1px)}
.nav-card.is-active{background:rgba(240,180,90,.12);color:var(--starlight-400)}
.nav-card.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;background:var(--starlight-400);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:auto}
.nav-toggle{
  display:none;
  width:44px;height:44px;margin-left:auto;
  align-items:center;justify-content:center;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--radius-sm);
  cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-light);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-light);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--starlight-400);color:var(--ink-900);box-shadow:0 6px 18px rgba(240,180,90,.24)}
.btn-primary:hover{background:var(--starlight-600);color:var(--ink-900);transform:translateY(-2px);box-shadow:0 10px 26px rgba(240,180,90,.34)}
.btn-ghost{background:transparent;color:var(--text-light);border-color:rgba(255,255,255,.28)}
.btn-ghost:hover{color:var(--starlight-400);border-color:var(--starlight-400);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--text-dark);border-color:var(--line)}
.btn-outline:hover{color:var(--starlight-600);border-color:var(--starlight-400);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;pointer-events:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--nebula-600)}
.text-link::after{content:"→";transition:transform .2s var(--ease)}
.text-link:hover{color:var(--starlight-600)}
.text-link:hover::after{transform:translateX(4px)}

/* ---------- 面包屑 ---------- */
.breadcrumb{margin:22px 0 0;font-size:13px;color:var(--text-weak)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li::after{content:"/";margin-left:8px;color:#C9C3B8}
.breadcrumb li:last-child::after{content:"";margin:0}
.breadcrumb a{color:var(--text-sub)}
.breadcrumb a:hover{color:var(--starlight-600)}
.breadcrumb .current{color:var(--text-dark);font-weight:600}

/* ---------- 分类首屏 ---------- */
.cat-hero{
  position:relative;
  margin-top:20px;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:linear-gradient(120deg,rgba(18,16,31,.92),rgba(27,24,48,.86)),url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  color:var(--text-light);
  box-shadow:var(--shadow-dark);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:34px 34px;opacity:.5;pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2;padding:clamp(38px,6vw,64px) clamp(22px,5vw,56px)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  font-size:12px;letter-spacing:.08em;
  border:1px solid rgba(240,180,90,.5);color:var(--starlight-400);
  background:rgba(240,180,90,.08);
}
.cat-hero h1{
  margin:20px 0 16px;
  font-size:clamp(30px,4.4vw,48px);
  line-height:1.22;
  color:var(--text-light);
  max-width:16em;
}
.cat-hero .lead{max-width:640px;font-size:17px;color:var(--text-light-sub);margin-bottom:26px}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.cat-meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:26px;font-size:14px;color:var(--text-light-sub);font-variant-numeric:tabular-nums}
.cat-meta span{display:inline-flex;align-items:center;gap:8px}
.cat-meta span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--starlight-400)}

/* ---------- 区块 ---------- */
.section{padding:clamp(56px,8vw,96px) 0}
.section-paper{background:var(--paper-50)}
.section-white{background:#fff}
.section-dark{background:var(--ink-900);color:var(--text-light)}
.section-dark h2,.section-dark h3{color:var(--text-light)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.3}
.section-head p{margin:12px 0 0;font-size:15px;color:var(--text-sub);max-width:640px}
.section-dark .section-head p{color:var(--text-light-sub)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:38px;max-width:920px}
.timeline::before{
  content:"";position:absolute;left:11px;top:8px;bottom:8px;width:1px;
  background:linear-gradient(180deg,rgba(240,180,90,0),rgba(240,180,90,.55),rgba(240,180,90,0));
}
.tl-item{position:relative;padding-bottom:38px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-32px;top:9px;width:11px;height:11px;border-radius:50%;
  background:var(--starlight-400);box-shadow:0 0 0 4px rgba(240,180,90,.16);
}
.tl-step{
  display:inline-block;font-size:12px;letter-spacing:.14em;color:var(--nebula-600);
  font-variant-numeric:tabular-nums;margin-bottom:8px;
}
.tl-item h3{font-size:19px;line-height:1.5;margin-bottom:10px}
.tl-item p{font-size:16px;color:var(--text-sub);max-width:680px;margin-bottom:0}
.tl-thumb{
  margin-top:16px;width:min(360px,100%);
  border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.tl-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}
.tl-tip{
  margin-top:14px;display:inline-flex;gap:10px;align-items:flex-start;
  padding:12px 16px;border-radius:var(--radius-sm);
  background:rgba(120,199,190,.10);border:1px solid rgba(120,199,190,.32);
  font-size:14px;color:#3F6F69;max-width:640px;
}
.tl-tip strong{color:#2F5A55}

/* ---------- 准备清单卡片 ---------- */
.prep-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.prep-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  display:flex;flex-direction:column;
}
.prep-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(240,180,90,.45)}
.prep-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.prep-body{padding:20px 22px 24px}
.prep-body h3{font-size:18px;margin-bottom:10px}
.prep-body p{font-size:15px;color:var(--text-sub);margin:0}
.prep-tag{
  display:inline-block;margin-bottom:12px;padding:4px 11px;border-radius:999px;
  font-size:12px;color:var(--nebula-600);border:1px solid rgba(92,76,158,.35);background:rgba(92,76,158,.06);
}

/* ---------- 对照表 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-md);background:#fff;box-shadow:var(--shadow-card)}
table{width:100%;border-collapse:collapse;min-width:680px}
thead th{
  background:#F1EEE7;text-align:left;font-size:14px;font-weight:600;color:var(--text-dark);
  padding:16px 20px;border-bottom:1px solid var(--line);white-space:nowrap;
}
tbody td{padding:16px 20px;font-size:15px;color:var(--text-sub);border-bottom:1px solid #F0ECE3;vertical-align:top}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover td{background:#FDFBF7}
tbody td:first-child{color:var(--text-dark);font-weight:600}

/* ---------- 双栏说明 ---------- */
.two-col{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
.note-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:28px;box-shadow:var(--shadow-card);
}
.note-card h3{font-size:20px;margin-bottom:14px}
.note-card p{font-size:15.5px;color:var(--text-sub)}
.note-list li{
  position:relative;padding-left:20px;font-size:15px;color:var(--text-sub);margin-bottom:12px;
}
.note-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--starlight-400);
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:rgba(240,180,90,.4)}
.faq-item.is-open{border-color:rgba(240,180,90,.55);box-shadow:var(--shadow-card)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--text-dark);font-family:var(--font-sans);
}
.faq-q .plus{
  flex:0 0 auto;position:relative;width:20px;height:20px;
  transition:transform .24s var(--ease);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--starlight-400);border-radius:2px;
}
.faq-q .plus::before{left:0;top:9px;width:20px;height:2px}
.faq-q .plus::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg)}
.faq-a{
  max-height:0;opacity:0;overflow:hidden;
  transition:max-height .24s var(--ease),opacity .24s var(--ease);
}
.faq-item.is-open .faq-a{max-height:360px;opacity:1}
.faq-a p{padding:0 22px 20px;font-size:16px;color:var(--text-sub);margin:0}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;background:var(--ink-900);color:var(--text-light);
  padding:clamp(64px,9vw,110px) 0;overflow:hidden;text-align:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:46px 46px;opacity:.35;
}
.cta-band::after{
  content:"";position:absolute;left:-10%;right:-10%;top:50%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(240,180,90,.28),transparent);
  transform:rotate(-4deg);
}
.cta-inner{position:relative;z-index:2;max-width:760px;margin:0 auto}
.cta-band h2{font-size:clamp(26px,3.6vw,38px);line-height:1.28;margin-bottom:16px;color:var(--text-light)}
.cta-band p{color:var(--text-light-sub);font-size:16px;margin-bottom:30px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-900);color:var(--text-light-sub);
  border-top:1px solid rgba(255,255,255,.08);
  padding:64px 0 28px;font-size:14px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand strong{font-family:var(--font-serif);font-size:17px;color:var(--text-light);letter-spacing:.06em}
.site-footer p{color:var(--text-light-sub);line-height:1.9;font-size:14px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 16px;border-radius:999px;
  border:1px solid rgba(255,255,255,.20);color:var(--text-light-sub);font-size:13px;
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.footer-social a:hover{color:var(--starlight-400);border-color:var(--starlight-400);transform:translateY(-2px)}
.footer-col h4{color:var(--text-light);font-size:15px;margin-bottom:18px;font-family:var(--font-sans);font-weight:600}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:var(--text-light-sub);font-size:14px;line-height:2}
.footer-col a:hover{color:var(--starlight-400);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8B85A0;
}

/* ---------- 滚动显现 ---------- */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.js .reveal.is-visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:34px}
}
@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .nav-cards,.nav-actions{display:none}
  .nav-panel{align-items:center}
  .nav-panel.is-open .nav-cards{
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
    gap:10px;width:100%;margin-top:12px;
  }
  .nav-panel.is-open .nav-actions{display:flex;width:100%;margin:12px 0 4px}
  .nav-panel.is-open .nav-card{height:56px;font-size:14px;width:100%}
  .nav-panel.is-open .nav-actions .btn{width:100%}
  .prep-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .two-col{grid-template-columns:1fr;gap:22px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .timeline{max-width:100%}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .cat-hero h1{max-width:100%}
  .prep-grid{grid-template-columns:1fr}
  .section-head{margin-bottom:26px}
  .tl-thumb{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:519px){
  .brand-text em{display:none}
  .cat-hero-actions .btn,.cta-actions .btn{width:100%}
  .nav-panel.is-open .nav-cards{grid-template-columns:1fr}
  .btn{height:46px;padding:0 20px}
}

/* roulang page: category2 */
:root{
  --ink-900:#12101F;
  --ink-800:#1B1830;
  --nebula-600:#5C4C9E;
  --starlight-400:#F0B45A;
  --starlight-500:#D99A33;
  --aurora-400:#78C7BE;
  --paper-50:#F7F5F0;
  --white:#FFFFFF;
  --line:#E6E1D7;
  --text:#1E1B2C;
  --text-soft:#5A5470;
  --text-mute:#8B85A0;
  --on-dark:#F2EFFA;
  --on-dark-soft:#B6B0CC;
  --radius-lg:18px;
  --radius-md:16px;
  --radius-sm:14px;
  --radius-xs:12px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(30,27,44,.05), 0 10px 30px rgba(30,27,44,.07);
  --shadow-md:0 2px 6px rgba(30,27,44,.06), 0 18px 44px rgba(30,27,44,.10);
  --shadow-dark:0 12px 32px rgba(12,10,24,.35);
  --ease:cubic-bezier(.2,.6,.3,1);
  --section:clamp(56px,8vw,112px);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper-50);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:600}
p{margin:0 0 22px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
:focus-visible{outline:2px solid var(--starlight-400);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}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--ink-900);
  padding:14px 0;
}
.nav-panel{
  position:relative;
  display:flex;
  align-items:center;
  gap:16px;
  min-height:68px;
  padding:10px 14px;
  background:var(--ink-800);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-dark);
  color:var(--on-dark);
}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:38px;height:38px;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.18}
.brand-text strong{font-family:var(--font-serif);font-size:19px;letter-spacing:.06em;color:var(--on-dark)}
.brand-text em{font-style:normal;font-size:11.5px;letter-spacing:.1em;color:var(--on-dark-soft);font-variant-numeric:tabular-nums}
.nav-cards{display:flex;align-items:center;gap:6px;flex:1;min-width:0}
.nav-card{
  position:relative;
  display:flex;
  align-items:center;
  gap:8px;
  height:42px;
  padding:0 13px;
  border-radius:var(--radius-xs);
  background:rgba(255,255,255,.06);
  color:var(--on-dark-soft);
  font-size:13.5px;
  white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.nav-card svg{width:18px;height:18px;flex:none}
.nav-card:hover{background:rgba(240,180,90,.14);color:var(--starlight-400)}
.nav-card.is-active{background:rgba(240,180,90,.14);color:var(--starlight-400)}
.nav-card.is-active::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:3px;height:20px;
  border-radius:2px;
  background:var(--starlight-400);
}
.nav-card-cta{display:none}
.nav-cta{
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 22px;
  margin-left:auto;
  border-radius:var(--radius-pill);
  background:var(--starlight-400);
  color:#1E1B2C;
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:background .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-cta:hover{background:var(--starlight-500);transform:translateY(-2px);box-shadow:0 12px 26px rgba(240,180,90,.3)}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  margin-left:auto;
  border-radius:var(--radius-xs);
  background:rgba(255,255,255,.06);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--on-dark);position:relative;transition:background .2s var(--ease)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--on-dark);transition:transform .22s var(--ease)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-panel.is-open .nav-toggle span{background:transparent}
.nav-panel.is-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
.nav-panel.is-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}
@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .nav-cards{
    position:absolute;
    left:0;right:0;top:calc(100% + 12px);
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:10px;
    padding:14px;
    background:var(--ink-800);
    border:1px solid rgba(255,255,255,.10);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-dark);
    max-height:0;
    opacity:0;
    visibility:hidden;
    overflow:hidden;
    transition:max-height .24s var(--ease),opacity .2s var(--ease),visibility .2s var(--ease);
  }
  .nav-panel.is-open .nav-cards{max-height:520px;opacity:1;visibility:visible}
  .nav-card{height:52px;font-size:14px;justify-content:flex-start}
  .nav-card-cta{display:block;grid-column:1 / -1;margin-top:4px}
  .nav-card-cta .nav-cta{display:flex;width:100%;justify-content:center;margin-left:0}
}
@media (max-width:520px){
  .nav-cards{grid-template-columns:1fr}
  .brand-text em{font-size:10.5px}
}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{background:var(--starlight-400);color:#1E1B2C;box-shadow:0 10px 24px rgba(240,180,90,.28)}
.btn-primary:hover{background:var(--starlight-500);transform:translateY(-2px);box-shadow:0 16px 32px rgba(240,180,90,.36)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--on-dark);border:1.5px solid rgba(242,239,250,.42)}
.btn-ghost:hover{border-color:var(--starlight-400);color:var(--starlight-400);transform:translateY(-2px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none}
.tag{
  display:inline-block;
  padding:4px 12px;
  margin-bottom:14px;
  border-radius:var(--radius-xs);
  background:rgba(92,76,158,.10);
  color:var(--nebula-600);
  font-size:12.5px;
  letter-spacing:.08em;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--nebula-600);
  transition:color .2s var(--ease);
}
.text-link span{transition:transform .22s var(--ease)}
.text-link:hover{color:#463a7d}
.text-link:hover span{transform:translateX(4px)}
.section{padding:var(--section) 0}
.section-alt{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:clamp(32px,4vw,56px)}
.section-head h2{font-family:var(--font-serif);font-size:clamp(24px,3vw,32px);line-height:1.32;margin-bottom:12px}
.section-head p{color:var(--text-soft);font-size:16px;margin:0}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;
  padding:clamp(48px,6vw,76px) 0 clamp(64px,8vw,100px);
  background:
    linear-gradient(180deg,rgba(18,16,31,.90) 0%,rgba(18,16,31,.74) 45%,rgba(18,16,31,.96) 100%),
    url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  color:var(--on-dark);
}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--on-dark-soft);margin-bottom:24px}
.breadcrumb a:hover{color:var(--starlight-400)}
.breadcrumb .sep{color:rgba(182,176,204,.55)}
.breadcrumb .current{color:var(--on-dark);font-weight:600}
.hero-badge{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  border:1px solid rgba(240,180,90,.55);
  border-radius:var(--radius-pill);
  color:var(--starlight-400);
  font-size:12.5px;
  letter-spacing:.1em;
}
.page-hero h1{
  font-family:var(--font-serif);
  font-size:clamp(30px,4.4vw,48px);
  line-height:1.22;
  letter-spacing:.02em;
  max-width:760px;
  margin:18px 0 16px;
}
.hero-sub{font-size:17px;color:var(--on-dark-soft);max-width:560px;margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;font-size:14px;color:var(--on-dark-soft)}
.hero-meta li{display:flex;align-items:center;gap:10px}
.hero-meta li + li::before{content:"";width:1px;height:14px;background:rgba(242,239,250,.28)}
@media (max-width:520px){
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
}

/* ---------- 图文交替 ---------- */
.zigzag{display:flex;flex-direction:column;gap:clamp(44px,6vw,80px)}
.zig-row{display:grid;gap:26px;align-items:center}
.zig-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--radius-sm);
  background:linear-gradient(140deg,var(--ink-800),var(--nebula-600));
  box-shadow:var(--shadow-sm);
}
.zig-text h2{font-family:var(--font-serif);font-size:clamp(22px,2.5vw,28px);line-height:1.35;margin:0 0 16px}
.zig-text p{color:var(--text-soft);font-size:16.5px;margin:0 0 18px}
@media (min-width:900px){
  .zig-row{grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,64px)}
  .zig-row.is-reverse .zig-media{order:2}
}

/* ---------- 对照列表 ---------- */
.compare-list{margin:0;border-top:1px solid var(--line)}
.compare-row{
  display:grid;
  gap:8px 32px;
  padding:26px 0;
  border-bottom:1px solid var(--line);
}
.compare-row dt{font-family:var(--font-serif);font-size:19px;color:var(--text)}
.compare-row dd{margin:0;color:var(--text-soft);font-size:16px}
@media (min-width:820px){
  .compare-row{grid-template-columns:220px 1fr}
}

/* ---------- 自查清单 ---------- */
.check-grid{display:grid;gap:0 40px}
.check-grid li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:16px 0;
  border-bottom:1px dashed var(--line);
  color:var(--text-soft);
  font-size:16px;
}
.check-grid li::before{
  content:"";
  width:9px;height:9px;
  flex:none;
  margin-top:13px;
  border-radius:50%;
  background:var(--aurora-400);
}
@media (min-width:760px){
  .check-grid{grid-template-columns:1fr 1fr}
}

/* ---------- FAQ ---------- */
.faq{max-width:880px}
.faq-item{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item.is-open{border-color:rgba(240,180,90,.55);box-shadow:var(--shadow-sm)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--text);
}
.faq-q .icon{font-size:20px;line-height:1;color:var(--starlight-400);transition:transform .24s var(--ease)}
.faq-item.is-open .faq-q .icon{transform:rotate(45deg)}
.faq-a{max-height:0;opacity:0;overflow:hidden;transition:max-height .28s var(--ease),opacity .24s var(--ease)}
.faq-item.is-open .faq-a{opacity:1}
.faq-a p{padding:0 22px 20px;margin:0;color:var(--text-soft);font-size:16px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--ink-900);
  color:var(--on-dark);
  padding:clamp(64px,9vw,120px) 0;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(240,180,90,.22) 1px,transparent 1px);
  background-size:46px 46px;
  opacity:.45;
  pointer-events:none;
}
.cta-inner{position:relative;max-width:760px;margin:0 auto;text-align:center}
.cta-inner h2{font-family:var(--font-serif);font-size:clamp(28px,3.6vw,38px);line-height:1.3;margin-bottom:14px}
.cta-inner p{color:var(--on-dark-soft);font-size:16.5px;margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px}
@media (max-width:520px){
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-900);
  color:var(--on-dark-soft);
  padding:64px 0 28px;
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-grid{display:grid;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{width:34px;height:34px}
.footer-brand strong{font-family:var(--font-serif);font-size:17px;color:var(--on-dark);letter-spacing:.04em}
.site-footer p{font-size:14px;line-height:1.9;margin:0}
.footer-social{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.footer-social a{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border:1px solid rgba(242,239,250,.28);
  border-radius:var(--radius-pill);
  font-size:13px;
  color:var(--on-dark-soft);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.footer-social a:hover{border-color:var(--starlight-400);color:var(--starlight-400)}
.footer-col h4{color:var(--on-dark);font-size:15px;margin-bottom:16px;font-weight:600}
.footer-col ul li a{font-size:14px;line-height:2;transition:color .2s var(--ease)}
.footer-col ul li a:hover{color:var(--starlight-400);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;
  color:var(--text-mute);
}
@media (min-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr}}

/* ---------- 滚动显现 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category4 */
:root{
  --ink-900:#12101F;
  --ink-800:#1B1830;
  --nebula-600:#5C4C9E;
  --starlight-400:#F0B45A;
  --starlight-500:#D99A33;
  --aurora-400:#78C7BE;
  --paper-50:#F7F5F0;
  --white:#FFFFFF;
  --line:#E6E1D7;
  --line-strong:#D8D2C4;
  --text-dark:#1E1B2C;
  --text-soft:#5A5470;
  --text-weak:#8B85A0;
  --text-invert:#F2EFFA;
  --text-invert-soft:#B6B0CC;
  --danger:#C75C4E;
  --radius-lg:18px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-xs:10px;
  --shadow-card:0 1px 2px rgba(30,27,44,.05), 0 10px 30px rgba(30,27,44,.07);
  --shadow-card-hover:0 2px 6px rgba(30,27,44,.07), 0 18px 42px rgba(30,27,44,.12);
  --shadow-dark:0 12px 32px rgba(12,10,24,.35);
  --section-space:clamp(56px, 8vw, 112px);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text-dark);
  background:var(--paper-50);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--nebula-600);text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--starlight-500)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:600;color:inherit;letter-spacing:.02em}
p{margin:0 0 22px}
p:last-child{margin-bottom:0}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--starlight-400);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}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
.num{font-variant-numeric:tabular-nums}

/* ---------- 头部导航 ---------- */
.site-header{padding:16px 0 0}
.nav-panel{
  position:sticky;top:16px;z-index:60;
  display:flex;align-items:center;gap:16px;
  padding:10px 12px;
  border-radius:var(--radius-lg);
  background:var(--ink-800);
  border:1px solid rgba(255,255,255,.10);
  box-shadow:var(--shadow-dark);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none}
.brand-mark{width:36px;height:36px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-family:var(--serif);font-size:17px;color:var(--text-invert);letter-spacing:.06em}
.brand-text em{font-style:normal;font-size:11px;color:var(--text-invert-soft);letter-spacing:.04em}
.nav-cards{display:flex;align-items:center;gap:8px;flex:1 1 auto;min-width:0}
.nav-card{
  position:relative;
  display:flex;align-items:center;gap:8px;
  height:44px;padding:0 14px;
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.06);
  color:var(--text-invert);
  font-size:14px;white-space:nowrap;
  transition:background .22s ease-out,color .22s ease-out;
}
.nav-card svg{width:20px;height:20px;flex:0 0 auto;stroke:currentColor}
.nav-card:hover,.nav-card:focus-visible{background:rgba(240,180,90,.14);color:var(--starlight-400)}
.nav-card.is-active{background:rgba(240,180,90,.14);color:var(--starlight-400)}
.nav-card.is-active::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;
  border-radius:2px;background:var(--starlight-400);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  border-radius:999px;
  font-size:15px;font-weight:600;
  transition:background .22s ease-out,color .22s ease-out,border-color .22s ease-out,transform .22s ease-out,box-shadow .22s ease-out;
}
.btn-primary{background:var(--starlight-400);color:var(--ink-900);box-shadow:0 6px 18px rgba(240,180,90,.28)}
.btn-primary:hover,.btn-primary:focus-visible{background:var(--starlight-500);color:var(--ink-900);transform:translateY(-2px);box-shadow:0 10px 26px rgba(240,180,90,.36)}
.btn-ghost{background:transparent;color:var(--text-invert);border:1.5px solid rgba(255,255,255,.35)}
.btn-ghost:hover,.btn-ghost:focus-visible{border-color:var(--starlight-400);color:var(--starlight-400)}
.btn-light{background:transparent;color:var(--text-dark);border:1.5px solid var(--line-strong)}
.btn-light:hover,.btn-light:focus-visible{border-color:var(--starlight-400);color:var(--starlight-500)}
.btn-block{width:100%}
.nav-toggle{
  display:none;width:44px;height:44px;flex:0 0 auto;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  margin-left:auto;
}
.nav-toggle span:not(.sr-only){display:block;width:18px;height:2px;border-radius:2px;background:var(--text-invert);transition:transform .22s ease-out,opacity .22s ease-out}
.nav-panel.is-open .nav-toggle span:first-of-type{transform:translateY(7px) rotate(45deg)}
.nav-panel.is-open .nav-toggle span:nth-of-type(2){opacity:0}
.nav-panel.is-open .nav-toggle span:last-of-type{transform:translateY(-7px) rotate(-45deg)}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:22px 0 0;font-size:13px;color:var(--text-weak)}
.breadcrumb a{color:var(--text-soft)}
.breadcrumb a:hover{color:var(--starlight-500)}
.breadcrumb .sep{color:var(--line-strong)}
.breadcrumb .current{color:var(--text-dark);font-weight:600}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  margin-top:20px;
  border-radius:24px;
  overflow:hidden;
  background:var(--ink-900) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  box-shadow:var(--shadow-dark);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,16,31,.42) 0%,rgba(18,16,31,.78) 55%,rgba(18,16,31,.96) 100%);
}
.hero-inner{position:relative;z-index:2;padding:clamp(44px,7vw,76px) clamp(24px,5vw,56px);max-width:760px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(240,180,90,.55);
  color:var(--starlight-400);font-size:12px;letter-spacing:.08em;
  margin-bottom:20px;
}
.hero h1{
  font-size:clamp(32px,4.6vw,52px);
  line-height:1.18;
  color:var(--text-invert);
  margin-bottom:18px;
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--text-invert-soft);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px;font-size:14px;color:var(--text-invert-soft)}
.hero-meta span{display:flex;align-items:center;gap:14px}
.hero-meta span+span::before{content:"";width:1px;height:13px;background:rgba(255,255,255,.25)}

/* ---------- 区块通用 ---------- */
.section{padding:var(--section-space) 0 0}
.section-last{padding-bottom:var(--section-space)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.3}
.section-head p{margin:8px 0 0;color:var(--text-soft);font-size:15px;max-width:680px}
.section-link{font-size:14px;color:var(--nebula-600);display:inline-flex;align-items:center;gap:6px}
.section-link:hover{color:var(--starlight-500)}
.section-link:hover .arrow{transform:translateX(4px)}
.arrow{display:inline-block;transition:transform .22s ease-out}

/* ---------- 分栏区 ---------- */
.split-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.cover-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.cover-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(240,180,90,.45)}
.cover-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:linear-gradient(140deg,#221E3C,#12101F)}
.cover-body{padding:24px}
.cover-body h3{font-size:22px;line-height:1.45;margin-bottom:14px}
.cover-body p{font-size:15.5px;color:var(--text-soft);line-height:1.85}
.cover-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  font-size:12px;line-height:1.6;
}
.badge-nebula{color:var(--nebula-600);border:1px solid rgba(92,76,158,.4);background:rgba(92,76,158,.06)}
.badge-aurora{color:#3D8C84;border:1px solid rgba(120,199,190,.5);background:rgba(120,199,190,.12)}
.badge-gold{color:var(--ink-900);background:var(--starlight-400)}
.badge-mute{color:var(--text-weak);background:#EFEBE2}

.list-panel{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.list-item{display:flex;gap:14px;padding:18px 22px;border-bottom:1px solid var(--line);transition:background .22s ease-out}
.list-item:last-child{border-bottom:none}
.list-item:hover{background:#FCFAF6}
.list-num{
  flex:0 0 auto;width:28px;height:28px;margin-top:3px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:rgba(92,76,158,.10);
  color:var(--nebula-600);
  font-size:13px;font-weight:600;
}
.list-item h3{font-size:16.5px;font-family:var(--sans);font-weight:600;line-height:1.6;margin-bottom:4px;transition:color .22s ease-out}
.list-item:hover h3{color:var(--starlight-500)}
.list-item p{font-size:14.5px;color:var(--text-soft);line-height:1.75;margin:0}

/* ---------- 表格 ---------- */
.table-wrap{
  overflow-x:auto;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-card);
}
.info-table{width:100%;min-width:640px;border-collapse:collapse;font-size:15px}
.info-table th{
  background:#F1EEE7;
  text-align:left;
  padding:14px 22px;
  font-size:13.5px;
  font-weight:600;
  color:var(--text-soft);
  letter-spacing:.04em;
  border-bottom:1px solid var(--line);
}
.info-table td{padding:16px 22px;border-bottom:1px solid var(--line);color:var(--text-soft);line-height:1.8;vertical-align:top}
.info-table tr:last-child td{border-bottom:none}
.info-table td:first-child{color:var(--text-dark);font-weight:600;white-space:nowrap}
.info-table tbody tr:hover td{background:#FCFAF6}

/* ---------- 信息条带 ---------- */
.fact-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.fact{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:22px;
  box-shadow:var(--shadow-card);
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.fact:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(240,180,90,.45)}
.fact .fact-idx{font-size:13px;color:var(--starlight-500);letter-spacing:.12em;font-weight:600}
.fact h3{font-family:var(--sans);font-size:16.5px;font-weight:600;margin:10px 0 8px}
.fact p{font-size:14.5px;color:var(--text-soft);line-height:1.8;margin:0}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.faq-item{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s ease-out,box-shadow .22s ease-out;
}
.faq-item:hover{border-color:rgba(240,180,90,.5)}
.faq-item.is-open{border-color:rgba(240,180,90,.65);box-shadow:var(--shadow-card)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;
  text-align:left;
  font-size:17px;font-weight:600;
  color:var(--text-dark);
}
.faq-q .plus{
  flex:0 0 auto;width:20px;height:20px;position:relative;
  transition:transform .24s ease-out;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--starlight-500);border-radius:2px;
}
.faq-q .plus::before{left:9px;top:1px;width:2px;height:18px}
.faq-q .plus::after{top:9px;left:1px;height:2px;width:18px}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg)}
.faq-a{max-height:0;opacity:0;overflow:hidden;transition:max-height .26s ease-out,opacity .24s ease-out}
.faq-item.is-open .faq-a{max-height:420px;opacity:1}
.faq-a-inner{padding:0 22px 20px;font-size:16px;line-height:1.85;color:var(--text-soft)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  margin-top:var(--section-space);
  background:var(--ink-900);
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px, transparent 1px);
  background-size:34px 34px;
  opacity:.35;
}
.cta-band::after{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(240,180,90,.35),transparent);
}
.cta-inner{position:relative;z-index:2;max-width:760px;margin:0 auto;text-align:center;padding:clamp(64px,9vw,110px) 20px}
.cta-inner h2{font-size:clamp(26px,3.4vw,38px);color:var(--text-invert);line-height:1.35;margin-bottom:16px}
.cta-inner p{color:var(--text-invert-soft);font-size:16px;margin-bottom:30px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:0;background:var(--ink-900);border-top:1px solid rgba(255,255,255,.08);padding:64px 0 28px;color:var(--text-invert-soft)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand strong{font-family:var(--serif);font-size:17px;color:var(--text-invert);letter-spacing:.04em}
.site-footer p{font-size:14px;line-height:1.9;color:var(--text-invert-soft);margin-bottom:18px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  display:inline-flex;align-items:center;justify-content:center;
  height:36px;padding:0 16px;border-radius:999px;
  border:1px solid rgba(255,255,255,.22);
  color:var(--text-invert);font-size:13px;
  transition:color .22s ease-out,border-color .22s ease-out;
}
.footer-social a:hover{color:var(--starlight-400);border-color:var(--starlight-400)}
.footer-col h4{font-family:var(--sans);font-size:15px;color:var(--text-invert);margin-bottom:16px;letter-spacing:.06em}
.footer-col ul li{margin-bottom:2px}
.footer-col a{color:var(--text-invert-soft);font-size:14px;line-height:2;transition:color .22s ease-out}
.footer-col a:hover{color:var(--starlight-400);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#8A84A6;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out,transform .5s ease-out}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media(max-width:1279px){
  .nav-card{padding:0 12px;font-size:13.5px}
}
@media(max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .fact-strip{grid-template-columns:1fr 1fr}
}
@media(max-width:960px){
  .nav-toggle{display:flex}
  .nav-panel{flex-wrap:wrap;top:10px}
  .nav-cards{
    display:grid;grid-template-columns:1fr 1fr;gap:10px;
    flex:1 1 100%;order:4;
    max-height:0;overflow:hidden;padding-top:0;
    transition:max-height .26s ease-out,padding-top .26s ease-out;
  }
  .nav-panel.is-open .nav-cards{max-height:520px;padding-top:10px}
  .nav-card{height:52px;justify-content:flex-start;background:rgba(255,255,255,.06)}
  .nav-actions{display:none;flex:1 1 100%;order:5}
  .nav-panel.is-open .nav-actions{display:flex;padding-top:10px}
  .nav-actions .btn{width:100%}
  .split-grid{grid-template-columns:1fr}
  .hero-inner{max-width:none}
}
@media(max-width:767px){
  body{font-size:15.5px}
  .brand-text em{display:none}
  .section-head{margin-bottom:22px}
  .cover-body{padding:20px}
  .list-item{padding:16px 18px}
  .footer-grid{grid-template-columns:1fr}
}
@media(max-width:559px){
  .nav-cards{grid-template-columns:1fr}
  .fact-strip{grid-template-columns:1fr}
  .hero-meta{flex-direction:column;gap:8px}
  .hero-meta span+span::before{display:none}
  .cta-actions .btn{width:100%}
  .faq-q{font-size:16px;padding:16px 18px}
  .faq-a-inner{padding:0 18px 18px;font-size:15.5px}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
}