/* roulang page: index */
:root{
  --ink-950:#120D24;
  --ink-900:#1A1233;
  --ink-800:#241A45;
  --ink-700:#322657;
  --ember:#FF6B33;
  --ember-hover:#FF834F;
  --ember-press:#E4551F;
  --star-cyan:#38E1C4;
  --nebula:#7B5CF0;
  --paper:#F7F4EE;
  --paper-2:#EDEAF6;
  --white:#FFFFFF;
  --text-dark:#F5EFE6;
  --text-dark-2:rgba(245,239,230,.68);
  --text:#1A1233;
  --text-2:#5B5470;
  --line:#E4DFF0;
  --line-dark:rgba(255,255,255,.12);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:10px;
  --r-xs:6px;
  --sh-1:0 1px 2px rgba(26,18,51,.05),0 8px 24px rgba(26,18,51,.06);
  --sh-2:0 10px 32px rgba(26,18,51,.12);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out;}
a:hover,a:focus{color:inherit;}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;color:inherit;font-weight:700;letter-spacing:-.2px;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:2px solid var(--star-cyan);
  outline-offset:2px;
  border-radius:6px;
}
.grid-container{
  max-width:var(--maxw);
  padding-left:32px;
  padding-right:32px;
}
.grid-x>.cell{padding-bottom:0;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px;}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--ink-950);
  color:var(--text-dark-2);
  font-size:12.5px;
  line-height:1.4;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.topbar-inner{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 32px;
  height:38px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.topbar-domain{
  letter-spacing:.4px;
  color:rgba(245,239,230,.55);
  white-space:nowrap;
}
.topbar-note{
  flex:1;
  text-align:center;
  color:rgba(245,239,230,.72);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.topbar-actions{display:flex;align-items:center;gap:10px;white-space:nowrap;}
.topbar-actions .dot{width:1px;height:12px;background:rgba(255,255,255,.18);display:inline-block;}
.topbar-link{color:var(--star-cyan);font-weight:600;}
.topbar-link:hover{color:var(--ember-hover);}

/* ---------- 导航 ---------- */
.site-nav{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--ink-900);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:box-shadow .2s ease-out,background .2s ease-out;
}
.site-nav.is-scrolled{
  background:rgba(26,18,51,.96);
  box-shadow:0 8px 24px rgba(10,6,24,.35);
  border-bottom-color:rgba(255,255,255,.12);
}
.nav-inner{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 32px;
  height:68px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text-dark);
  font-weight:800;
  font-size:17px;
  letter-spacing:-.2px;
  white-space:nowrap;
}
.logo-mark{
  width:32px;
  height:32px;
  flex:0 0 32px;
  border-radius:9px;
  background:radial-gradient(circle at 32% 28%,rgba(255,107,51,.85),rgba(123,92,240,.35) 62%,rgba(18,13,36,.9));
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid rgba(255,255,255,.16);
}
.logo-mark svg{width:19px;height:19px;display:block;}
.logo:hover{color:var(--ember-hover);}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 14px;
  border-radius:8px;
  font-size:15px;
  font-weight:600;
  color:rgba(245,239,230,.78);
  transition:color .18s ease-out,background .18s ease-out;
}
.nav-links a:hover{color:var(--text-dark);background:rgba(255,255,255,.06);}
.nav-links a.is-active{color:var(--text-dark);}
.nav-links a.is-active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:0;
  height:2px;
  background:var(--ember);
  border-radius:2px;
}
.nav-cta{margin-left:18px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.2);
  background:transparent;
  color:var(--text-dark);
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-drawer{
  display:none;
  background:var(--ink-950);
  border-top:1px solid rgba(255,255,255,.08);
  padding:16px 20px 24px;
}
.nav-drawer.is-open{display:block;}
.nav-drawer a{
  display:block;
  padding:12px 8px;
  font-size:17px;
  font-weight:600;
  color:rgba(245,239,230,.86);
  border-bottom:1px solid rgba(255,255,255,.07);
}
.nav-drawer a.is-active{color:var(--ember);}
.nav-drawer .drawer-cta{
  margin-top:18px;
  width:100%;
  height:48px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:700;
  line-height:1;
  border:1px solid transparent;
  background:transparent;
  cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-primary{background:var(--ember);color:var(--ink-900);}
.btn-primary:hover{background:var(--ember-hover);color:var(--ink-900);transform:translateY(-1px);box-shadow:0 8px 20px rgba(255,107,51,.32);}
.btn-primary:active{background:var(--ember-press);transform:none;box-shadow:none;}
.btn-ghost{border-color:rgba(245,239,230,.32);color:var(--text-dark);}
.btn-ghost:hover{border-color:var(--star-cyan);color:var(--star-cyan);transform:translateY(-1px);}
.btn-outline{border-color:#CFC8E4;color:var(--text);}
.btn-outline:hover{border-color:var(--star-cyan);color:var(--star-cyan);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:700;
  color:var(--text-2);
  transition:color .18s ease-out;
}
.link-more .arrow{transition:transform .18s ease-out;}
.link-more:hover{color:var(--ember);}
.link-more:hover .arrow{transform:translateX(3px);}
.on-dark .link-more{color:var(--text-dark-2);}
.on-dark .link-more:hover{color:var(--star-cyan);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:5px;
  padding:3px 9px;
  border-radius:var(--r-xs);
  font-size:12px;
  font-weight:600;
  line-height:1.6;
}
.badge-ember{background:var(--ember);color:var(--ink-900);}
.badge-cyan{border:1px solid rgba(56,225,196,.6);color:var(--star-cyan);background:rgba(56,225,196,.08);}
.badge-nebula{background:var(--nebula);color:#fff;}
.badge-soft{background:rgba(255,255,255,.1);color:var(--text-dark);border:1px solid rgba(255,255,255,.16);}
.badge-light{background:var(--paper-2);color:var(--text-2);border:1px solid var(--line);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background-image:linear-gradient(90deg,rgba(18,13,36,.94) 0%,rgba(24,16,48,.86) 45%,rgba(36,26,69,.55) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  background-color:var(--ink-950);
  color:var(--text-dark);
  padding:76px 0 84px;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:120px;
  background:linear-gradient(180deg,rgba(18,13,36,0),rgba(18,13,36,.55));
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  gap:56px;
}
.hero-copy{flex:1 1 auto;max-width:620px;}
.hero-copy .badge{margin-bottom:20px;}
.hero h1{
  font-size:44px;
  line-height:1.22;
  font-weight:800;
  letter-spacing:-.5px;
  color:var(--text-dark);
  margin-bottom:18px;
}
.hero h1 em{
  font-style:normal;
  color:var(--ember);
}
.hero-sub{
  font-size:17px;
  line-height:1.8;
  color:var(--text-dark-2);
  max-width:34em;
  margin-bottom:30px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:38px;}
.hero-stats{
  display:flex;
  gap:36px;
  flex-wrap:wrap;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.12);
}
.hero-stat strong{
  display:block;
  font-size:24px;
  font-weight:800;
  color:var(--star-cyan);
  line-height:1.3;
}
.hero-stat span{font-size:13px;color:var(--text-dark-2);}
.hero-card{
  flex:0 0 344px;
  width:344px;
  background:var(--ink-800);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:0 0 0 1px rgba(255,107,51,.08),0 18px 40px rgba(10,6,24,.45);
}
.hero-card-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:16px;
}
.hero-card-head h2{
  font-size:16px;
  font-weight:700;
  color:var(--text-dark);
  letter-spacing:0;
}
.hero-card-head span{font-size:12px;color:var(--text-dark-2);}
.progress-track{
  height:10px;
  border-radius:999px;
  background:rgba(255,255,255,.12);
  overflow:hidden;
}
.progress-fill{
  height:100%;
  width:62%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--ember),var(--star-cyan));
}
.progress-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:9px;
  font-size:12.5px;
  color:var(--text-dark-2);
}
.progress-meta b{color:var(--ember);font-size:13px;}
.hero-task-list{margin-top:18px;border-top:1px solid rgba(255,255,255,.1);padding-top:14px;}
.hero-task{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:9px 0;
  font-size:13.5px;
  color:rgba(245,239,230,.8);
  border-bottom:1px dashed rgba(255,255,255,.08);
}
.hero-task:last-child{border-bottom:0;}
.hero-task .state{
  font-size:12px;
  font-weight:600;
  color:var(--star-cyan);
}
.hero-task .state.waiting{color:rgba(245,239,230,.45);}

/* ---------- 快捷入口 ---------- */
.quickbar{background:var(--paper);padding:36px 0;}
.quickbar-inner{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.quick-item{
  display:flex;
  align-items:center;
  gap:14px;
  padding:16px 18px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.quick-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6CDF0;}
.quick-icon{
  flex:0 0 44px;
  width:44px;height:44px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--paper-2);
  color:var(--ink-700);
  border:1px solid var(--line);
}
.quick-item:hover .quick-icon{color:var(--ember);border-color:rgba(255,107,51,.4);}
.quick-text strong{display:block;font-size:15px;font-weight:700;color:var(--text);line-height:1.5;}
.quick-text span{font-size:12.5px;color:var(--text-2);}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0;}
.section-dark{background:var(--ink-900);color:var(--text-dark);}
.section-soft{background:var(--paper-2);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.section-title{
  font-size:32px;
  line-height:1.28;
  font-weight:700;
  display:flex;
  align-items:center;
  letter-spacing:-.3px;
}
.section-title::before{
  content:"";
  display:inline-block;
  width:4px;
  height:24px;
  border-radius:2px;
  background:var(--ember);
  margin-right:12px;
  flex:0 0 4px;
}
.section-desc{
  margin-top:10px;
  font-size:15px;
  color:var(--text-2);
  max-width:40em;
}
.on-dark .section-title{color:var(--text-dark);}
.on-dark .section-desc{color:var(--text-dark-2);}

/* ---------- 玩法步骤 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
  position:relative;
  margin-top:8px;
}
.step{
  position:relative;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px 20px 22px;
  box-shadow:var(--sh-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.step::after{
  content:"";
  position:absolute;
  top:46px;
  right:-22px;
  width:22px;
  border-top:1px dashed #CBC2E4;
}
.step:last-child::after{display:none;}
.step-num{
  width:48px;height:48px;
  border-radius:50%;
  border:2px solid rgba(255,107,51,.5);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  font-weight:800;
  color:var(--ember);
  margin-bottom:16px;
  background:rgba(255,107,51,.07);
}
.step h3{font-size:18px;font-weight:700;margin-bottom:8px;color:var(--text);}
.step p{font-size:14px;line-height:1.7;color:var(--text-2);margin:0;}

/* ---------- 奖励预览 ---------- */
.reward-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
  align-items:start;
}
.reward-card{
  background:var(--ink-800);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.reward-card:hover{transform:translateY(-2px);border-color:rgba(56,225,196,.4);box-shadow:0 12px 30px rgba(8,5,20,.45);}
.reward-card.is-featured{
  border:2px solid var(--ember);
  box-shadow:0 0 0 1px rgba(255,107,51,.12),0 16px 34px rgba(8,5,20,.4);
  margin-top:-8px;
  padding-top:1px;
}
.reward-media{
  position:relative;
  aspect-ratio:16/9;
  background:linear-gradient(135deg,rgba(123,92,240,.35),rgba(18,13,36,.85));
  overflow:hidden;
}
.reward-media img{width:100%;height:100%;object-fit:cover;}
.reward-media .badge{position:absolute;left:10px;bottom:10px;}
.reward-body{padding:18px;}
.reward-body h3{font-size:17px;font-weight:700;color:var(--text-dark);margin-bottom:6px;}
.reward-body .cond{font-size:13px;color:var(--text-dark-2);margin:0;}
.reward-tag{
  position:absolute;
  right:10px;
  top:10px;
}

/* ---------- 任务进度 ---------- */
.progress-panel{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--sh-1);
}
.progress-panel h3{font-size:18px;margin-bottom:6px;}
.progress-panel .hint{font-size:13.5px;color:var(--text-2);margin-bottom:22px;}
.bar-wrap{display:flex;align-items:center;gap:16px;}
.bar-wrap .progress-track{flex:1;background:#EDE9F7;}
.bar-wrap b{font-size:15px;color:var(--ember);font-weight:800;min-width:48px;text-align:right;}
.level-row{
  display:grid;
  grid-template-columns:repeat(7,1fr);
  gap:8px;
  margin-top:22px;
}
.level-cell{
  height:34px;
  border-radius:8px;
  background:var(--paper-2);
  border:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  font-weight:700;
  color:var(--text-2);
}
.level-cell.done{background:var(--ember);border-color:var(--ember);color:var(--ink-900);}
.level-cell.half{background:rgba(56,225,196,.18);border-color:rgba(56,225,196,.55);color:#177a68;}
.progress-notes{
  margin-top:20px;
  padding-top:18px;
  border-top:1px dashed var(--line);
  font-size:13px;
  color:var(--text-2);
}
.progress-notes p{margin:0 0 6px;}
.progress-notes p:last-child{margin-bottom:0;}
.progress-copy h2{margin-bottom:14px;}
.progress-copy p{color:var(--text-2);font-size:15px;margin-bottom:18px;}

/* ---------- 最新信息 ---------- */
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.news-card{
  display:flex;
  flex-direction:column;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6CDF0;}
.news-card:hover h3{color:var(--ember);}
.news-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--paper-2);}
.news-media img{width:100%;height:100%;object-fit:cover;}
.news-media .badge{position:absolute;left:12px;bottom:12px;}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-body h3{
  font-size:18px;
  line-height:1.5;
  font-weight:700;
  margin-bottom:8px;
  color:var(--text);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .18s ease-out;
}
.news-body p{
  font-size:14px;
  line-height:1.7;
  color:var(--text-2);
  margin:0 0 16px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  min-height:3.4em;
}
.news-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:12.5px;
  color:var(--text-2);
  border-top:1px solid var(--line);
  padding-top:12px;
}
.news-meta .go{color:var(--ember);font-weight:700;}
.empty-state{
  border:1px dashed #CFC8E4;
  border-radius:var(--r-md);
  padding:48px 24px;
  text-align:center;
  background:rgba(255,255,255,.6);
  color:var(--text-2);
}
.empty-state .icon{
  width:46px;height:46px;
  margin:0 auto 14px;
  border-radius:50%;
  background:var(--paper-2);
  display:flex;align-items:center;justify-content:center;
  color:var(--nebula);
  border:1px solid var(--line);
}
.empty-state p{margin-bottom:16px;font-size:15px;}

/* ---------- 分类引导 ---------- */
.cat-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.cat-card{
  position:relative;
  display:block;
  border-radius:var(--r-lg);
  padding:32px;
  min-height:230px;
  overflow:hidden;
  border:1px solid var(--line);
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.cat-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.cat-card h3{font-size:22px;font-weight:700;margin:14px 0 10px;}
.cat-card p{font-size:14.5px;line-height:1.75;margin:0 0 20px;max-width:26em;}
.cat-card .link-more{font-size:14px;}
.cat-card.dark{
  background:linear-gradient(135deg,rgba(18,13,36,.94),rgba(50,38,87,.82)),url('/assets/images/coverpic/cover-3.webp');
  background-size:cover;
  background-position:center;
  color:var(--text-dark);
  border-color:rgba(255,255,255,.12);
}
.cat-card.dark p{color:var(--text-dark-2);}
.cat-card.light{background:var(--white);color:var(--text);}
.cat-card.light p{color:var(--text-2);}
.cat-card .cat-arrow{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;
  border:1px solid currentColor;
  opacity:.55;
  position:absolute;right:28px;bottom:28px;
  transition:transform .18s ease-out,opacity .18s ease-out;
}
.cat-card:hover .cat-arrow{transform:translate(3px,-3px);opacity:1;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 0;
  font-size:17px;
  font-weight:700;
  color:var(--text);
  transition:color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--ember);}
.faq-item summary .sign{
  flex:0 0 24px;
  width:24px;height:24px;
  border-radius:6px;
  border:1px solid var(--line);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  font-weight:700;
  color:var(--text-2);
  transition:transform .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.faq-item[open] summary{color:var(--ember);}
.faq-item[open] summary .sign{transform:rotate(45deg);color:var(--ember);border-color:rgba(255,107,51,.5);}
.faq-item .answer{
  padding:0 0 22px;
  font-size:15px;
  line-height:1.75;
  color:var(--text-2);
  max-width:44em;
}

/* ---------- 结尾 CTA ---------- */
.cta-band{
  position:relative;
  background-color:var(--ink-950);
  background-image:radial-gradient(rgba(56,225,196,.16) 1px,transparent 1px),radial-gradient(rgba(255,107,51,.14) 1px,transparent 1px);
  background-size:48px 48px,72px 72px;
  background-position:0 0,24px 36px;
  color:var(--text-dark);
  padding:70px 0;
  text-align:center;
}
.cta-band h2{
  font-size:28px;
  line-height:1.35;
  font-weight:700;
  margin-bottom:12px;
}
.cta-band p{
  font-size:14.5px;
  color:var(--text-dark-2);
  max-width:36em;
  margin:0 auto 26px;
}
.cta-band .note{
  margin:18px 0 0;
  font-size:13px;
  color:rgba(245,239,230,.5);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-950);
  color:var(--text-dark-2);
  padding:60px 0 0;
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:40px;
}
.footer-brand .logo{margin-bottom:16px;font-size:16px;}
.footer-brand p{font-size:13.5px;line-height:1.8;color:rgba(245,239,230,.6);margin:0;max-width:28em;}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--text-dark);
  margin-bottom:16px;
  letter-spacing:.4px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:13.5px;color:rgba(245,239,230,.62);}
.footer-col ul li a:hover{color:var(--star-cyan);}
.footer-col p{font-size:13.5px;line-height:1.8;color:rgba(245,239,230,.6);margin:0 0 10px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:rgba(245,239,230,.45);
}
.footer-bottom .domain{color:rgba(245,239,230,.6);letter-spacing:.3px;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1279px){
  .hero h1{font-size:38px;}
  .hero-card{flex:0 0 320px;width:320px;}
}
@media screen and (max-width:1023px){
  .grid-container,.wrap,.nav-inner,.topbar-inner{padding-left:24px;padding-right:24px;}
  .section{padding:64px 0;}
  .hero{padding:60px 0 68px;}
  .hero-inner{gap:36px;}
  .hero h1{font-size:34px;}
  .hero-card{display:none;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step::after{display:none;}
  .reward-grid{grid-template-columns:repeat(2,1fr);}
  .reward-card.is-featured{margin-top:0;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .cat-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .nav-links a{padding:8px 10px;font-size:14px;}
  .nav-cta{margin-left:8px;}
}
@media screen and (max-width:767px){
  .topbar-note{display:none;}
  .topbar-inner{justify-content:space-between;}
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .section{padding:48px 0;}
  .section-title{font-size:24px;}
  .section-title::before{height:20px;}
  .hero{padding:48px 0 56px;min-height:480px;}
  .hero h1{font-size:30px;line-height:1.3;}
  .hero-sub{font-size:15.5px;}
  .hero-actions{flex-direction:column;align-items:stretch;gap:12px;margin-bottom:30px;}
  .hero-actions .btn{width:100%;}
  .hero-stats{gap:24px;}
  .hero-stat strong{font-size:20px;}
  .quickbar{padding:24px 0;}
  .quickbar-inner{
    display:flex;
    gap:12px;
    overflow-x:auto;
    scroll-snap-type:x mandatory;
    padding-bottom:6px;
    -webkit-overflow-scrolling:touch;
  }
  .quickbar-inner::-webkit-scrollbar{display:none;}
  .quick-item{flex:0 0 78vw;scroll-snap-align:start;}
  .steps{grid-template-columns:1fr;gap:16px;}
  .step{padding:20px 18px;}
  .reward-grid{grid-template-columns:1fr;gap:16px;}
  .news-grid{grid-template-columns:1fr;gap:18px;}
  .cat-card{padding:24px;min-height:200px;}
  .cat-card h3{font-size:19px;}
  .cat-card .cat-arrow{display:none;}
  .progress-panel{padding:20px;}
  .level-row{gap:6px;}
  .level-cell{height:30px;font-size:11px;}
  .cta-band{padding:52px 0;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .faq-item summary{font-size:16px;padding:18px 0;}
}
@media screen and (max-width:400px){
  .hero h1{font-size:27px;}
  .hero-stat strong{font-size:18px;}
}

/* roulang page: category1 */
:root{
  --ink-950:#120D24;
  --ink-900:#1A1233;
  --ink-800:#241A45;
  --ink-700:#322657;
  --ember:#FF6B33;
  --ember-hover:#FF834F;
  --ember-press:#E4551F;
  --star-cyan:#38E1C4;
  --nebula:#7B5CF0;
  --paper:#F7F4EE;
  --paper-2:#EDEAF6;
  --white:#FFFFFF;
  --text-dark:#1A1233;
  --text-soft:#5B5470;
  --text-light:#F5EFE6;
  --text-light-soft:rgba(245,239,230,.68);
  --line:#E4DFF0;
  --line-dark:rgba(255,255,255,.12);
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:10px;
  --radius-img:12px;
  --radius-badge:6px;
  --shadow-1:0 1px 2px rgba(26,18,51,.05),0 8px 24px rgba(26,18,51,.06);
  --shadow-2:0 10px 32px rgba(26,18,51,.12);
  --shadow-ember:0 8px 20px rgba(255,107,51,.32);
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-dark);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
:focus-visible{outline:2px solid var(--star-cyan);outline-offset:2px;border-radius:4px;}

.wrap{max-width:1200px;margin:0 auto;padding:0 32px;}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--ink-950);color:var(--text-light-soft);font-size:12.5px;height:38px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:38px;}
.topbar-domain{letter-spacing:.4px;color:rgba(245,239,230,.46);white-space:nowrap;}
.topbar-note{flex:1;text-align:center;color:rgba(245,239,230,.66);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.topbar-link{color:var(--star-cyan);font-weight:600;white-space:nowrap;}
.topbar-link:hover{color:#fff;}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:60;}
.navbar{
  background:rgba(247,244,238,.96);
  border-bottom:1px solid transparent;
  transition:box-shadow .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;
}
.site-header.is-scrolled .navbar{
  border-bottom:1px solid var(--line);
  box-shadow:0 8px 24px rgba(26,18,51,.08);
  background:rgba(247,244,238,.98);
}
.navbar-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:-.2px;}
.logo-mark{display:inline-flex;width:26px;height:26px;}
.logo-mark svg{width:100%;height:100%;}
.logo:hover{color:var(--ember);}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-links a{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--text-soft);
  padding:6px 0;
}
.nav-links a:hover{color:var(--ember);}
.nav-links a.is-active{color:var(--ink-900);}
.nav-links a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;background:var(--ember);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-drawer-cta{display:none;}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;line-height:1;border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-primary{background:var(--ember);color:var(--ink-900);}
.btn-primary:hover{background:var(--ember-hover);transform:translateY(-1px);box-shadow:var(--shadow-ember);}
.btn-primary:active{background:var(--ember-press);transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--ink-900);border-color:#CFC8E4;}
.btn-ghost:hover{border-color:var(--star-cyan);color:#0F9E88;transform:translateY(-1px);}
.btn-ghost-light{background:transparent;color:var(--text-light);border-color:rgba(245,239,230,.32);}
.btn-ghost-light:hover{border-color:var(--star-cyan);color:var(--star-cyan);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--ember);
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.btn-text:hover{color:var(--ember-press);border-bottom-color:var(--ember-press);}
.btn-text i{font-size:12px;transition:transform .18s ease-out;}
.btn-text:hover i{transform:translateX(3px);}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--radius-badge);
  font-size:12px;font-weight:600;line-height:1.5;
}
.badge-ember{background:var(--ember);color:var(--ink-900);}
.badge-cyan{background:transparent;color:#0F9E88;border:1px solid var(--star-cyan);}
.badge-nebula{background:var(--nebula);color:#fff;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 15px;border-radius:999px;
  background:rgba(255,255,255,.8);border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--text-soft);
}
.chip i{color:var(--nebula);font-size:12px;}

/* ============ 页头 ============ */
.page-head{
  position:relative;overflow:hidden;
  background:var(--paper-2);
  border-bottom:1px solid var(--line);
  padding:44px 0 64px;
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(123,92,240,.20) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.55;
  pointer-events:none;
}
.page-head::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,51,.16),transparent 68%);
  pointer-events:none;
}
.page-head .wrap{position:relative;z-index:2;}
.crumbs{font-size:13px;color:var(--text-soft);}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumbs li{display:inline-flex;align-items:center;gap:8px;}
.crumbs li+li::before{content:"/";color:#B9B2CE;}
.crumbs a:hover{color:var(--ember);}
.crumbs .current{color:var(--text-soft);opacity:.72;}
.page-head h1{
  font-size:44px;line-height:1.22;font-weight:800;letter-spacing:-.5px;
  margin-top:18px;max-width:820px;
}
.page-head h1 .hl{color:var(--ember);}
.page-sub{
  margin-top:18px;max-width:660px;font-size:17px;line-height:1.8;color:var(--text-soft);
}

/* ============ 板块通用 ============ */
.section{padding:80px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px;}
.section-title{position:relative;padding-left:16px;font-size:32px;line-height:1.28;font-weight:700;letter-spacing:-.3px;}
.section-title::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;background:var(--ember);
}
.section-desc{max-width:560px;color:var(--text-soft);font-size:15.5px;}

/* ============ Z 字图文区块 ============ */
.z-block{padding:72px 0;border-bottom:1px solid var(--line);}
.z-block:last-of-type{border-bottom:none;}
.z-block.alt{background:var(--white);}
.z-row{display:flex;flex-wrap:wrap;gap:48px;align-items:center;}
.z-row.is-reverse{flex-direction:row-reverse;}
.z-media{
  position:relative;border-radius:var(--radius-img);overflow:hidden;
  box-shadow:var(--shadow-1);background:var(--paper-2);aspect-ratio:16/9;
}
.z-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.z-media:hover img{transform:scale(1.02);}
.z-media .media-tag{
  position:absolute;left:14px;top:14px;
  background:rgba(18,13,36,.86);color:var(--text-light);
  font-size:12px;font-weight:600;padding:5px 11px;border-radius:var(--radius-badge);
  letter-spacing:.3px;
}
.z-copy{padding:4px 0;}
.z-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:50%;
  border:2px solid var(--ember);color:var(--ember);
  font-size:16px;font-weight:800;letter-spacing:.5px;margin-bottom:18px;
}
.z-copy h2{font-size:32px;line-height:1.28;font-weight:700;letter-spacing:-.3px;}
.z-copy p{margin-top:16px;font-size:16px;line-height:1.85;color:var(--text-soft);}
.points{margin-top:22px;display:grid;gap:12px;}
.points li{
  position:relative;padding-left:24px;font-size:15px;line-height:1.7;color:var(--text-dark);
}
.points li::before{
  content:"";position:absolute;left:2px;top:.62em;width:8px;height:8px;
  background:var(--star-cyan);border-radius:50%;
  box-shadow:0 0 0 3px rgba(56,225,196,.16);
}
.z-copy .btn-text{margin-top:26px;}

/* ============ 深色流程区 ============ */
.dark-band{
  position:relative;overflow:hidden;
  background:var(--ink-900);color:var(--text-light);
  padding:80px 0;
}
.dark-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(245,239,230,.14) 1px,transparent 1px);
  background-size:32px 32px;opacity:.5;pointer-events:none;
}
.dark-band::after{
  content:"";position:absolute;left:-160px;bottom:-200px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,225,196,.16),transparent 70%);pointer-events:none;
}
.dark-band .wrap{position:relative;z-index:2;}
.dark-band .section-title{color:var(--text-light);}
.dark-band .section-desc{color:var(--text-light-soft);}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:8px;}
.step{
  position:relative;padding:24px 20px;
  border:1px solid var(--line-dark);border-radius:var(--radius-md);
  background:rgba(255,255,255,.035);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.step:hover{transform:translateY(-2px);border-color:rgba(255,107,51,.5);box-shadow:0 0 0 1px rgba(255,107,51,.08),0 10px 32px rgba(0,0,0,.24);}
.step .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;
  border:1.5px solid var(--ember);color:var(--ember);
  font-size:14px;font-weight:800;margin-bottom:14px;
}
.step h3{font-size:17px;font-weight:700;color:var(--text-light);}
.step p{margin-top:8px;font-size:13.5px;line-height:1.7;color:var(--text-light-soft);}

/* ============ 参数卡 ============ */
.param-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px;}
.param-card{
  border:1px solid var(--line-dark);border-radius:var(--radius-md);
  background:rgba(255,255,255,.04);padding:22px;
}
.param-card .label{
  font-size:12px;font-weight:600;letter-spacing:.6px;color:var(--star-cyan);
  text-transform:uppercase;
}
.param-card .value{margin-top:10px;font-size:20px;font-weight:800;color:var(--text-light);letter-spacing:-.2px;}
.param-card p{margin-top:10px;font-size:13.5px;line-height:1.7;color:var(--text-light-soft);}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:17px;font-weight:700;color:var(--ink-900);
  transition:color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:22px;font-weight:400;line-height:1;color:var(--ember);
  transition:transform .18s ease-out;
}
.faq-item[open] summary::after{content:"−";}
.faq-item summary:hover{color:var(--ember);}
.faq-item .answer{padding:0 40px 22px 0;font-size:15px;line-height:1.78;color:var(--text-soft);}

/* ============ 结尾 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-950);color:var(--text-light);
  padding:72px 0;text-align:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(245,239,230,.12) 1px,transparent 1px);
  background-size:30px 30px;opacity:.55;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;left:50%;top:-160px;transform:translateX(-50%);
  width:620px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,51,.20),transparent 70%);pointer-events:none;
}
.cta-band .wrap{position:relative;z-index:2;}
.cta-band h2{font-size:28px;line-height:1.35;font-weight:800;letter-spacing:-.3px;}
.cta-band p{margin:14px auto 0;max-width:560px;font-size:15px;color:var(--text-light-soft);}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:28px;}
.cta-note{margin-top:20px;font-size:13px;color:rgba(245,239,230,.5);}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:var(--text-light-soft);padding:64px 0 28px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid var(--line-dark);
}
.footer-brand .logo{color:var(--text-light);font-size:17px;margin-bottom:16px;}
.footer-brand .logo:hover{color:var(--star-cyan);}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-light-soft);max-width:320px;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text-light);margin-bottom:16px;letter-spacing:.3px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col li{font-size:14px;line-height:1.7;}
.footer-col a{color:var(--text-light-soft);}
.footer-col a:hover{color:var(--star-cyan);}
.footer-col p{font-size:13.5px;line-height:1.8;color:var(--text-light-soft);}
.footer-col p+p{margin-top:10px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 24px;
  padding-top:24px;font-size:12.5px;color:rgba(245,239,230,.5);
}
.footer-bottom .domain{letter-spacing:.4px;}

/* ============ 移动端抽屉按钮 ============ */
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:var(--white);color:var(--ink-900);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle i{font-size:16px;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .wrap{padding:0 24px;}
  .section,.dark-band{padding:64px 0;}
  .z-block{padding:56px 0;}
  .page-head{padding:36px 0 52px;}
  .page-head h1{font-size:36px;}
  .section-title{font-size:28px;}
  .z-copy h2{font-size:28px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .param-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .z-row{gap:32px;}
}

@media (max-width:900px){
  .topbar-note{display:none;}
  .nav-links{
    position:fixed;inset:0;z-index:90;
    flex-direction:column;align-items:flex-start;justify-content:flex-start;
    gap:6px;padding:96px 28px 32px;
    background:var(--ink-950);
    transform:translateX(100%);
    transition:transform .26s ease-out;
    overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0);}
  .nav-links a{
    width:100%;font-size:17px;color:var(--text-light);padding:14px 0;
    border-bottom:1px solid var(--line-dark);
  }
  .nav-links a.is-active{color:var(--ember);}
  .nav-links a.is-active::after{display:none;}
  .nav-links a:hover{color:var(--ember);}
  .nav-drawer-cta{
    display:inline-flex;width:100%;margin-top:24px;
    background:var(--ember);color:var(--ink-900);border-color:transparent;
    border-bottom:none;justify-content:center;font-weight:700;
    padding:14px 0;border-radius:10px;font-size:16px;
  }
  .nav-drawer-cta:hover{color:var(--ink-900);}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-sm{display:none;}
  body.nav-open{overflow:hidden;}
}

@media (max-width:767px){
  .wrap{padding:0 20px;}
  .page-head h1{font-size:30px;line-height:1.28;}
  .page-sub{font-size:15.5px;}
  .section,.dark-band{padding:48px 0;}
  .z-block{padding:44px 0;}
  .z-row{flex-direction:column;gap:24px;}
  .z-row.is-reverse{flex-direction:column;}
  .z-copy h2{font-size:24px;}
  .section-title{font-size:24px;}
  .section-head{margin-bottom:24px;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-brand p{max-width:none;}
  .steps{grid-template-columns:1fr;}
  .btn{height:46px;}
  .cta-actions .btn{width:100%;}
}

@media (max-width:575px){
  .topbar{font-size:12px;}
  .topbar-inner{gap:10px;}
  .topbar-domain{font-size:11.5px;}
  .logo{font-size:15.5px;}
  .logo-mark{width:22px;height:22px;}
  .faq-item summary{font-size:15.5px;}
  .faq-item .answer{padding-right:12px;}
}

/* roulang page: article */
:root{
  --ink-950:#120D24;
  --ink-900:#1A1233;
  --ink-800:#241A45;
  --ink-700:#322657;
  --ember:#FF6B33;
  --ember-hover:#FF834F;
  --ember-press:#E4551F;
  --star-cyan:#38E1C4;
  --nebula:#7B5CF0;
  --paper:#F7F4EE;
  --paper-2:#EDEAF6;
  --white:#FFFFFF;
  --text:#1A1233;
  --text-muted:#5B5470;
  --text-light:#F5EFE6;
  --text-light-muted:rgba(245,239,230,.68);
  --line:#E4DFF0;
  --line-dark:rgba(255,255,255,.12);
  --link:#0F8E7C;
  --radius-lg:18px;
  --radius:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-sm:0 1px 2px rgba(26,18,51,.05),0 8px 24px rgba(26,18,51,.06);
  --shadow-hover:0 10px 32px rgba(26,18,51,.12);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease);}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink-900);letter-spacing:-.2px;}
p{margin:0;}
:focus-visible{outline:2px solid var(--star-cyan);outline-offset:2px;}
.wrap{max-width:1264px;margin:0 auto;padding:0 32px;}
.row{max-width:1200px;}
.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;}

/* ===== 顶部信息条 ===== */
.topbar{background:var(--ink-950);color:var(--text-light-muted);font-size:12.5px;height:38px;line-height:38px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;}
.topbar-domain{letter-spacing:.4px;color:rgba(245,239,230,.55);}
.topbar-tip{flex:1;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-actions{display:flex;align-items:center;gap:10px;}
.topbar-actions a{color:var(--star-cyan);font-weight:600;}
.topbar-actions a:hover{color:var(--ember-hover);}
.topbar-sep{color:rgba(245,239,230,.28);}

/* ===== 主导航 ===== */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(247,244,238,.96);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 24px rgba(26,18,51,.08);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:-.3px;}
.logo-mark{display:inline-flex;width:28px;height:28px;flex:0 0 28px;}
.logo-mark svg{width:100%;height:100%;}
.logo:hover{color:var(--ink-800);}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{
  position:relative;font-size:14.5px;font-weight:600;color:var(--text-muted);
  padding:8px 2px;line-height:1.4;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--ember);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-links a:hover{color:var(--ember-press);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--ink-900);}
.nav-links a.is-active::after{transform:scaleX(1);}
.header-cta{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:var(--white);color:var(--ink-900);cursor:pointer;align-items:center;justify-content:center;
  transition:border-color var(--ease),color var(--ease);
}
.nav-toggle:hover{border-color:var(--star-cyan);color:var(--link);}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.mobile-drawer{
  position:fixed;inset:0;z-index:200;background:var(--ink-950);
  display:none;flex-direction:column;padding:22px 22px 32px;
}
.mobile-drawer.is-open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;}
.drawer-head .logo{color:var(--text-light);}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line-dark);
  background:transparent;color:var(--text-light);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-close:hover{border-color:var(--star-cyan);color:var(--star-cyan);}
.drawer-links{display:flex;flex-direction:column;gap:4px;}
.drawer-links a{
  font-size:17px;font-weight:600;color:var(--text-light);padding:14px 12px;border-radius:10px;
  border-bottom:1px solid rgba(255,255,255,.07);
}
.drawer-links a:hover{background:rgba(56,225,196,.09);color:var(--star-cyan);}
.drawer-links a.is-active{color:var(--ember);}
.drawer-foot{margin-top:auto;padding-top:24px;}
.drawer-foot p{color:var(--text-light-muted);font-size:13px;margin-bottom:14px;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:all var(--ease);white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn-primary{background:var(--ember);color:var(--ink-900);}
.btn-primary:hover{background:var(--ember-hover);color:var(--ink-900);transform:translateY(-1px);box-shadow:0 8px 20px rgba(255,107,51,.32);}
.btn-primary:active{background:var(--ember-press);transform:translateY(0);}
.btn-secondary{background:transparent;border-color:#CFC8E4;color:var(--ink-900);}
.btn-secondary:hover{border-color:var(--star-cyan);color:var(--link);}
.btn-onDark{background:transparent;border-color:rgba(245,239,230,.32);color:var(--text-light);}
.btn-onDark:hover{border-color:var(--star-cyan);color:var(--star-cyan);}
.btn-text{
  height:auto;padding:0;border:0;background:none;color:var(--link);font-weight:700;
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;
}
.btn-text .arrow{transition:transform var(--ease);}
.btn-text:hover{color:var(--ember-press);text-decoration:underline;text-underline-offset:4px;}
.btn-text:hover .arrow{transform:translateX(3px);}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 9px;border-radius:6px;
  font-size:12px;font-weight:600;line-height:1;letter-spacing:.2px;
}
.badge-ember{background:var(--ember);color:var(--ink-900);}
.badge-outline{border:1px solid rgba(56,225,196,.55);color:#0F7F6F;background:rgba(56,225,196,.1);}
.badge-nebula{background:var(--nebula);color:#fff;}
.badge-ondark{border:1px solid rgba(255,255,255,.22);color:var(--text-light-muted);}
.chip{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:var(--white);color:var(--text-muted);
  font-size:13px;font-weight:600;transition:all var(--ease);
}
.chip:hover{border-color:var(--star-cyan);color:var(--link);transform:translateY(-1px);}

/* ===== 面包屑 ===== */
.breadcrumb ol{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;
  font-size:13.5px;color:var(--text-muted);line-height:1.6;
}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:#BFB8D4;}
.breadcrumb a{color:var(--text-muted);}
.breadcrumb a:hover{color:var(--link);}
.breadcrumb li[aria-current="page"]{color:var(--ink-800);font-weight:600;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ===== 文章页头 ===== */
.article-hero{
  background:
    radial-gradient(circle at 12% 18%,rgba(123,92,240,.16),transparent 42%),
    radial-gradient(circle at 88% 8%,rgba(56,225,196,.14),transparent 38%),
    var(--paper);
  padding:30px 0 40px;
  border-bottom:1px solid var(--line);
}
.head-badges{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px;}
.article-hero h1{
  font-size:44px;line-height:1.22;font-weight:800;letter-spacing:-.5px;
  margin-bottom:18px;max-width:900px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:14px;color:var(--text-muted);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C4BDD8;}

/* ===== 文章主体布局 ===== */
.article-main{padding:56px 0 80px;background:var(--paper);}
.article-row > .columns{padding-left:0;padding-right:0;}
.article-row > .columns.large-8{padding-right:30px;}
.article-row > .columns.large-4{padding-left:30px;}

/* ===== 正文排版 ===== */
.article-body{font-size:17px;line-height:1.85;color:#2A2340;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;font-size:26px;line-height:1.38;font-weight:700;
  margin:2em 0 .8em;padding-left:16px;color:var(--ink-900);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;width:4px;height:1em;
  background:var(--ember);border-radius:2px;
}
.article-body h3{font-size:21px;line-height:1.45;font-weight:700;margin:1.7em 0 .7em;color:var(--ink-900);}
.article-body h4{font-size:18px;font-weight:600;margin:1.4em 0 .6em;}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;border-left:3px solid var(--ember);
  background:#EFEBFA;border-radius:0 var(--radius-img) var(--radius-img) 0;
  color:#3A3358;font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul{list-style:none;padding-left:0;margin:0 0 1.2em;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.5em;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.62em;width:8px;height:8px;
  background:var(--star-cyan);border-radius:2px;transform:rotate(45deg);
}
.article-body ol{padding-left:1.4em;margin:0 0 1.2em;}
.article-body ol li{margin-bottom:.5em;}
.article-body img{border-radius:var(--radius-img);margin:1.6em auto;box-shadow:var(--shadow-sm);}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--text-muted);text-align:center;margin-top:10px;}
.article-body a{color:var(--link);border-bottom:1px solid rgba(15,142,124,.35);}
.article-body a:hover{color:var(--ember-press);border-bottom-color:var(--ember);}
.article-body strong{color:var(--ink-900);font-weight:700;}
.article-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15.5px;}
.article-body th,.article-body td{border:0;border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top;}
.article-body th{font-weight:700;color:var(--ink-900);background:transparent;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}

/* ===== 文章尾部 ===== */
.article-foot{margin-top:40px;padding-top:26px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:24px;}
.tag-label{font-size:13px;font-weight:700;color:var(--text-muted);letter-spacing:.4px;}
.foot-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;}

/* 空态 */
.empty-state{
  border:1px dashed #CFC8E4;border-radius:var(--radius);background:var(--white);
  padding:52px 24px;text-align:center;
}
.empty-state .star{font-size:26px;color:var(--ember);margin-bottom:12px;display:block;}
.empty-state h2{font-size:22px;margin-bottom:10px;padding:0;}
.empty-state h2::before{display:none;}
.empty-state p{color:var(--text-muted);font-size:15px;margin-bottom:20px;}

/* ===== 侧栏 ===== */
.sidebar-inner{position:sticky;top:96px;}
.side-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);margin-bottom:20px;
}
.side-card h3{
  font-size:16px;font-weight:800;margin-bottom:16px;padding-left:12px;position:relative;
}
.side-card h3::before{
  content:"";position:absolute;left:0;top:.34em;width:4px;height:.9em;
  background:var(--ember);border-radius:2px;
}
.mini-list{list-style:none;display:flex;flex-direction:column;gap:14px;}
.mini-list a{display:flex;gap:12px;align-items:flex-start;}
.mini-list img{
  width:74px;height:56px;flex:0 0 74px;object-fit:cover;border-radius:10px;
  background:#E8E3F5;
}
.mini-title{
  display:block;font-size:14.5px;font-weight:600;line-height:1.5;color:var(--ink-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--ease);
}
.mini-meta{display:block;font-size:12.5px;color:var(--text-muted);margin-top:4px;}
.mini-list a:hover .mini-title{color:var(--ember-press);}
.mini-list a:hover img{box-shadow:0 6px 16px rgba(26,18,51,.14);}
.side-nav{list-style:none;display:flex;flex-direction:column;}
.side-nav li+li{border-top:1px solid var(--line);}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 0;font-size:14.5px;font-weight:600;color:var(--text-muted);
}
.side-nav a::after{content:"→";color:#C0B9D6;transition:transform var(--ease),color var(--ease);}
.side-nav a:hover{color:var(--ember-press);}
.side-nav a:hover::after{transform:translateX(3px);color:var(--ember);}
.side-cta{
  background:var(--ink-900);border-radius:var(--radius);padding:24px;
  position:relative;overflow:hidden;
  border:1px solid rgba(255,255,255,.1);
  box-shadow:0 10px 28px rgba(26,18,51,.18);
}
.side-cta::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 90% 6%,rgba(255,107,51,.28),transparent 46%),
    radial-gradient(circle at 6% 94%,rgba(56,225,196,.2),transparent 44%);
  pointer-events:none;
}
.side-cta h3{color:var(--text-light);font-size:17px;margin-bottom:10px;position:relative;}
.side-cta p{color:var(--text-light-muted);font-size:13.5px;line-height:1.7;margin-bottom:18px;position:relative;}
.side-cta .btn{position:relative;}

/* ===== 延伸阅读 ===== */
.more-section{background:var(--paper-2);padding:72px 0;border-top:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px;}
.section-head h2{font-size:30px;line-height:1.28;position:relative;padding-left:16px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.32em;width:4px;height:.9em;
  background:var(--ember);border-radius:2px;
}
.section-head p{color:var(--text-muted);font-size:14.5px;margin-top:8px;padding-left:16px;}
.more-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.more-card{
  display:flex;gap:18px;align-items:center;background:var(--white);
  border:1px solid var(--line);border-radius:var(--radius);padding:18px;
  box-shadow:var(--shadow-sm);transition:all var(--ease);
}
.more-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D5CDF0;}
.more-card img{width:132px;height:92px;flex:0 0 132px;object-fit:cover;border-radius:var(--radius-img);background:#E8E3F5;}
.more-card h3{font-size:17px;line-height:1.45;margin-bottom:8px;transition:color var(--ease);}
.more-card:hover h3{color:var(--ember-press);}
.more-card p{font-size:13.5px;color:var(--text-muted);line-height:1.7;}
.more-arrow{margin-left:auto;color:#C0B9D6;font-size:18px;flex:0 0 auto;}

/* ===== 结尾 CTA ===== */
.cta-band{
  position:relative;background:var(--ink-950);color:var(--text-light);
  padding:64px 0;overflow:hidden;text-align:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(circle at 18% 22%,rgba(123,92,240,.22),transparent 42%),
    radial-gradient(circle at 82% 78%,rgba(255,107,51,.2),transparent 44%);
}
.cta-band .cta-inner{position:relative;max-width:720px;margin:0 auto;}
.cta-band h2{color:var(--text-light);font-size:28px;line-height:1.35;margin-bottom:14px;}
.cta-band p{color:var(--text-light-muted);font-size:15px;margin-bottom:26px;}
.cta-note{margin-top:16px;font-size:13px;color:rgba(245,239,230,.5);}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink-950);color:var(--text-light-muted);padding:60px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;
  padding-bottom:40px;
}
.footer-brand .logo{color:var(--text-light);margin-bottom:14px;}
.footer-brand p{font-size:13.5px;line-height:1.8;max-width:320px;}
.footer-col h4{
  color:var(--text-light);font-size:14px;font-weight:700;margin-bottom:14px;letter-spacing:.4px;
}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13.5px;color:var(--text-light-muted);}
.footer-col a:hover{color:var(--star-cyan);}
.footer-col p{font-size:13.5px;line-height:1.8;margin-bottom:10px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:20px 0 26px;border-top:1px solid var(--line-dark);font-size:12.5px;
  color:rgba(245,239,230,.5);
}
.footer-bottom .domain{letter-spacing:.4px;}

/* ===== 响应式 ===== */
@media screen and (max-width:1279px){
  .wrap{padding:0 28px;}
}
@media screen and (max-width:1023px){
  .nav-links{display:none;}
  .header-cta .btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .article-hero h1{font-size:34px;}
  .article-row > .columns.large-8{padding-right:0;}
  .article-row > .columns.large-4{padding-left:0;margin-top:40px;}
  .sidebar-inner{position:static;}
  .more-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .topbar-tip{display:none;}
}
@media screen and (max-width:767px){
  .wrap{padding:0 22px;}
  .article-hero{padding:24px 0 30px;}
  .article-hero h1{font-size:30px;letter-spacing:-.3px;}
  .article-body{font-size:16.5px;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:19px;}
  .article-main{padding:40px 0 60px;}
  .more-section{padding:52px 0;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .section-head h2{font-size:24px;}
  .more-card{flex-direction:column;align-items:flex-start;}
  .more-card img{width:100%;height:160px;flex:none;}
  .more-arrow{display:none;}
  .cta-band{padding:52px 0;}
  .cta-band h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .topbar-domain{display:none;}
  .topbar-inner{justify-content:space-between;}
}
@media screen and (max-width:575px){
  .wrap{padding:0 18px;}
  .logo{font-size:15.5px;}
  .logo-mark{width:24px;height:24px;flex:0 0 24px;}
  .article-hero h1{font-size:27px;}
  .tag-row{gap:8px;}
  .foot-actions .btn{width:100%;}
  .btn{height:46px;}
}

/* roulang page: category2 */
:root{
  --ink-950:#120D24;
  --ink-900:#1A1233;
  --ink-800:#241A45;
  --ink-700:#322657;
  --ember:#FF6B33;
  --ember-hover:#FF834F;
  --ember-active:#E4551F;
  --cyan:#38E1C4;
  --nebula:#7B5CF0;
  --paper:#F7F4EE;
  --paper-2:#EDEAF6;
  --white:#FFFFFF;
  --text:#1A1233;
  --text-2:#5B5470;
  --light-text:#F5EFE6;
  --light-text-2:rgba(245,239,230,.68);
  --line:#E4DFF0;
  --line-strong:#CFC8E4;
  --line-dark:rgba(255,255,255,.12);
  --r-lg:18px;
  --r-md:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(26,18,51,.05),0 8px 24px rgba(26,18,51,.06);
  --sh-hover:0 10px 32px rgba(26,18,51,.12);
  --ease:180ms ease-out;
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
  border-radius:4px;
}
.wrap{
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
  width:100%;
}
/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--ink-950);
  color:var(--light-text-2);
  font-size:12.5px;
  line-height:38px;
  height:38px;
  overflow:hidden;
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  height:38px;
}
.topbar-domain{letter-spacing:.4px;color:rgba(245,239,230,.55);white-space:nowrap;}
.topbar-note{
  flex:1;
  text-align:center;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  color:var(--light-text-2);
}
.topbar-link{
  color:var(--cyan);
  white-space:nowrap;
  display:inline-flex;
  align-items:center;
  gap:4px;
  font-weight:600;
}
.topbar-link:hover{color:#7DF6E2;}
/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,244,238,.96);
  transition:box-shadow var(--ease),border-color var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  border-bottom:1px solid var(--line);
  box-shadow:0 8px 24px rgba(26,18,51,.08);
}
.nav-bar{height:68px;}
.nav-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:68px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:17px;
  letter-spacing:-.2px;
  color:var(--text);
  white-space:nowrap;
}
.logo-mark{
  width:30px;
  height:30px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
}
.logo-mark svg{width:30px;height:30px;display:block;}
.logo:hover{color:var(--ember);}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  padding:8px 14px;
  font-size:15px;
  font-weight:600;
  color:var(--text-2);
  border-radius:8px;
}
.nav-links a:hover{color:var(--text);background:var(--paper-2);}
.nav-links a.is-active{color:var(--text);}
.nav-links a.is-active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--ember);
}
.nav-cta{margin-left:8px;}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:10px;
  border:1px solid var(--line-strong);
  align-items:center;
  justify-content:center;
  color:var(--text);
  margin-left:auto;
  font-size:18px;
}
.nav-toggle:hover{border-color:var(--ember);color:var(--ember);}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:700;
  line-height:1;
  transition:transform var(--ease),background-color var(--ease),box-shadow var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-primary{
  background:var(--ember);
  color:var(--ink-900);
  box-shadow:0 1px 2px rgba(26,18,51,.06);
}
.btn-primary:hover{
  background:var(--ember-hover);
  color:var(--ink-900);
  transform:translateY(-1px);
  box-shadow:0 8px 20px rgba(255,107,51,.32);
}
.btn-primary:active{background:var(--ember-active);transform:translateY(0);}
.btn-ghost{
  background:transparent;
  border:1px solid var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:var(--cyan);
  color:#1E9E88;
  transform:translateY(-1px);
}
.btn-ghost-dark{
  background:transparent;
  border:1px solid rgba(245,239,230,.32);
  color:var(--light-text);
}
.btn-ghost-dark:hover{
  border-color:var(--cyan);
  color:var(--cyan);
  transform:translateY(-1px);
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:700;
  color:#C24A1B;
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.link-arrow:hover{border-bottom-color:currentColor;color:var(--ember-active);}
.link-arrow i{font-size:12px;transition:transform var(--ease);}
.link-arrow:hover i{transform:translateX(3px);}
/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border-radius:var(--r-badge);
  font-size:12px;
  font-weight:600;
  line-height:1.6;
  white-space:nowrap;
}
.badge-ember{background:var(--ember);color:var(--ink-900);}
.badge-cyan{background:transparent;border:1px solid var(--cyan);color:#1E9E88;}
.badge-nebula{background:var(--nebula);color:#fff;}
.badge-soft{background:rgba(123,92,240,.12);color:#5B41C8;}
/* ---------- 页头区 ---------- */
.page-hero{
  background:var(--paper-2);
  background-image:
    radial-gradient(circle at 12% 18%,rgba(123,92,240,.16) 0,transparent 42%),
    radial-gradient(circle at 88% 8%,rgba(56,225,196,.18) 0,transparent 40%),
    radial-gradient(circle at 70% 90%,rgba(255,107,51,.12) 0,transparent 45%);
  padding:44px 0 60px;
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--text-2);
  margin-bottom:22px;
}
.breadcrumb ol{display:flex;align-items:center;flex-wrap:wrap;gap:8px;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li:not(:last-child)::after{content:"/";color:var(--line-strong);}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--ember);}
.breadcrumb [aria-current="page"]{color:var(--text);font-weight:600;}
.hero-grid{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:48px;
  align-items:center;
}
.hero-copy .badge{margin-bottom:16px;}
.page-hero h1{
  font-size:44px;
  line-height:1.22;
  font-weight:800;
  letter-spacing:-.5px;
  color:var(--text);
  margin-bottom:18px;
  max-width:16em;
}
.hero-sub{
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-2);
  max-width:36em;
  margin-bottom:26px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.82);
  border:1px solid var(--line);
  font-size:13px;
  font-weight:600;
  color:var(--text-2);
}
.chip i{color:var(--ember);font-size:12px;}
.hero-figure{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.9);
  box-shadow:var(--sh-1);
  background:var(--white);
}
.hero-figure img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:0;
}
.hero-figure figcaption{
  padding:12px 18px;
  font-size:13px;
  color:var(--text-2);
  background:var(--white);
  border-top:1px solid var(--line);
}
/* ---------- 主题内容区 ---------- */
.main-section{padding:72px 0 80px;background:var(--paper);}
.main-grid{margin-left:-12px;margin-right:-12px;}
.main-grid > .columns,.main-grid > .column{padding-left:12px;padding-right:12px;}
/* 锚点索引 */
.anchor-col{position:relative;}
.anchor-index{
  position:sticky;
  top:120px;
  border-left:2px solid var(--line);
  padding-left:0;
}
.anchor-title{
  font-size:12.5px;
  font-weight:700;
  letter-spacing:1.2px;
  color:var(--text-2);
  text-transform:uppercase;
  padding-left:18px;
  margin-bottom:14px;
}
.anchor-index ul{display:flex;flex-direction:column;gap:2px;}
.anchor-index a{
  display:block;
  padding:9px 0 9px 18px;
  margin-left:-2px;
  border-left:2px solid transparent;
  font-size:14px;
  font-weight:600;
  color:var(--text-2);
  line-height:1.5;
}
.anchor-index a:hover{color:var(--text);border-left-color:var(--line-strong);}
.anchor-index a.is-current{
  color:#C24A1B;
  border-left-color:var(--ember);
  background:linear-gradient(90deg,rgba(255,107,51,.10),rgba(255,107,51,0));
}
/* 编号区块 */
.content-col{max-width:100%;}
.reward-block{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:34px 34px 32px;
  box-shadow:var(--sh-1);
  margin-bottom:24px;
  scroll-margin-top:120px;
}
.reward-block:last-of-type{margin-bottom:0;}
.block-head{
  display:flex;
  align-items:flex-start;
  gap:16px;
  margin-bottom:8px;
}
.block-num{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:46px;
  height:46px;
  padding:0 10px;
  border-radius:12px;
  border:1.5px solid var(--ember);
  color:#C24A1B;
  font-size:17px;
  font-weight:800;
  letter-spacing:.5px;
  background:rgba(255,107,51,.07);
}
.reward-block h2{
  font-size:26px;
  line-height:1.35;
  font-weight:700;
  color:var(--text);
  padding-top:6px;
  margin:0;
}
.reward-block h2 .sub-key{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--text-2);
  letter-spacing:.6px;
  margin-top:6px;
  padding:0;
}
.block-lead{
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
  margin:14px 0 22px;
  max-width:38em;
}
.info-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.info-card{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:20px 20px 18px;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background-color var(--ease);
  scroll-margin-top:120px;
}
.info-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-hover);
  border-color:var(--line-strong);
  background:#F3F0FA;
}
.info-card h3{
  display:flex;
  align-items:center;
  gap:9px;
  font-size:16.5px;
  font-weight:700;
  color:var(--text);
  margin-bottom:8px;
  line-height:1.4;
}
.info-card h3 i{
  color:var(--ember);
  font-size:14px;
  flex:0 0 auto;
}
.info-card p{
  font-size:14.5px;
  line-height:1.75;
  color:var(--text-2);
}
.info-card .card-tag{
  display:inline-block;
  margin-top:12px;
  padding:3px 9px;
  border-radius:var(--r-badge);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.4px;
  color:#5B41C8;
  background:rgba(123,92,240,.13);
}
/* 迷你 FAQ */
.mini-faq{
  margin-top:28px;
  padding:30px 34px 8px;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  scroll-margin-top:120px;
}
.mini-faq > h2{
  font-size:23px;
  line-height:1.4;
  font-weight:700;
  color:var(--text);
  margin-bottom:6px;
}
.mini-faq > p.faq-lead{
  font-size:14.5px;
  color:var(--text-2);
  margin-bottom:18px;
}
.faq-item{
  border-top:1px solid var(--line);
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 0;
  font-size:16.5px;
  font-weight:700;
  color:var(--text);
  cursor:pointer;
  list-style:none;
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  width:26px;
  height:26px;
  border-radius:8px;
  border:1px solid var(--line-strong);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  font-weight:600;
  color:var(--text-2);
  transition:all var(--ease);
}
.faq-item[open] summary::after{content:"−";background:var(--ember);border-color:var(--ember);color:var(--ink-900);}
.faq-item summary:hover{color:#C24A1B;}
.faq-item .faq-body{
  padding:0 0 20px;
  font-size:15px;
  line-height:1.78;
  color:var(--text-2);
  max-width:40em;
}
/* ---------- 结尾 CTA ---------- */
.cta-band{
  position:relative;
  background:var(--ink-900);
  background-image:
    radial-gradient(circle at 20% 25%,rgba(56,225,196,.16) 0,transparent 52%),
    radial-gradient(circle at 82% 70%,rgba(255,107,51,.20) 0,transparent 55%),
    linear-gradient(180deg,rgba(18,13,36,.55),rgba(18,13,36,.75)),
    url("/assets/images/backpic/back-2.png");
  background-size:cover,cover,cover,cover;
  background-position:center,center,center,center;
  color:var(--light-text);
  padding:72px 0;
  overflow:hidden;
  scroll-margin-top:110px;
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(245,239,230,.16) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.35;
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;text-align:center;}
.cta-inner h2{
  font-size:28px;
  line-height:1.4;
  font-weight:700;
  color:var(--light-text);
  margin-bottom:14px;
  letter-spacing:-.3px;
}
.cta-inner p{
  font-size:15px;
  line-height:1.8;
  color:var(--light-text-2);
  max-width:44em;
  margin:0 auto 26px;
}
.cta-actions{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
}
.cta-note{
  margin-top:18px;
  font-size:13px;
  color:rgba(245,239,230,.55);
}
/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-950);
  color:var(--light-text-2);
  padding:60px 0 0;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.55fr 1fr 1fr 1.15fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .logo{
  color:var(--light-text);
  font-size:16.5px;
  margin-bottom:14px;
}
.footer-brand .logo:hover{color:var(--ember);}
.footer-brand p{
  font-size:13.5px;
  line-height:1.8;
  color:var(--light-text-2);
  max-width:24em;
}
.footer-col h4{
  font-size:13px;
  font-weight:700;
  letter-spacing:1px;
  color:var(--light-text);
  margin-bottom:14px;
  text-transform:uppercase;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  font-size:13.5px;
  color:var(--light-text-2);
  transition:color var(--ease);
}
.footer-col a:hover{color:var(--cyan);}
.footer-col p{
  font-size:13px;
  line-height:1.8;
  color:rgba(245,239,230,.55);
  margin-bottom:10px;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  padding:20px 0 26px;
  border-top:1px solid var(--line-dark);
  font-size:12.5px;
  color:rgba(245,239,230,.5);
}
.footer-bottom .domain{color:rgba(56,225,196,.75);letter-spacing:.4px;}
/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:90;
  background:var(--ink-900);
  padding:22px 20px 30px;
  display:none;
  flex-direction:column;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:flex;}
.drawer-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:26px;
}
.drawer-top .logo{color:var(--light-text);font-size:16px;}
.drawer-close{
  width:42px;
  height:42px;
  border-radius:10px;
  border:1px solid var(--line-dark);
  color:var(--light-text);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
}
.drawer-close:hover{border-color:var(--cyan);color:var(--cyan);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:26px;}
.drawer-nav a{
  font-size:17px;
  font-weight:600;
  color:var(--light-text);
  padding:13px 4px;
  border-bottom:1px solid var(--line-dark);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--ember);}
.drawer-cta{margin-top:auto;width:100%;}
/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .page-hero h1{font-size:40px;}
}
@media (max-width:1023px){
  .wrap{padding:0 24px;}
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .page-hero{padding:36px 0 50px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .page-hero h1{font-size:34px;max-width:100%;}
  .hero-figure img{aspect-ratio:16/9;}
  .main-section{padding:56px 0 64px;}
  .anchor-index{position:static;border-left:0;padding:0;margin-bottom:28px;}
  .anchor-title{padding-left:0;margin-bottom:10px;}
  .anchor-index ul{
    flex-direction:row;
    gap:8px;
    overflow-x:auto;
    padding-bottom:6px;
    scrollbar-width:none;
  }
  .anchor-index ul::-webkit-scrollbar{display:none;}
  .anchor-index a{
    white-space:nowrap;
    padding:8px 14px;
    border-left:0;
    border:1px solid var(--line-strong);
    border-radius:999px;
    background:var(--white);
    font-size:13px;
  }
  .anchor-index a:hover{border-color:var(--line-strong);}
  .anchor-index a.is-current{
    background:rgba(255,107,51,.12);
    border-color:var(--ember);
    color:#C24A1B;
  }
  .reward-block{padding:28px 24px;}
  .mini-faq{padding:26px 24px 6px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .topbar-note{display:none;}
  .topbar-inner{justify-content:space-between;}
  .nav-bar,.nav-inner{height:62px;}
  .page-hero h1{font-size:30px;line-height:1.28;}
  .hero-sub{font-size:15.5px;}
  .block-head{gap:12px;flex-wrap:wrap;}
  .block-num{min-width:40px;height:40px;font-size:15px;border-radius:10px;}
  .reward-block h2{font-size:22px;padding-top:2px;}
  .info-grid{grid-template-columns:1fr;}
  .mini-faq > h2{font-size:20px;}
  .faq-item summary{font-size:15.5px;}
  .cta-band{padding:56px 0;}
  .cta-inner h2{font-size:22px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:575px){
  .wrap{padding:0 20px;}
  .main-section{padding:44px 0 52px;}
  .page-hero h1{font-size:27px;}
  .reward-block{padding:24px 18px;border-radius:var(--r-md);}
  .mini-faq{padding:22px 18px 4px;border-radius:var(--r-md);}
  .info-card{padding:17px 16px;}
  .badge{font-size:11.5px;}
  .chip{font-size:12px;padding:6px 12px;}
}