/* roulang page: index */
:root{
  --bg-0:#05070F;
  --bg-1:#080D1A;
  --bg-2:#0E1730;
  --surface:rgba(18,26,48,.62);
  --surface-2:rgba(22,32,58,.80);
  --line:rgba(126,166,255,.14);
  --line-strong:rgba(126,166,255,.30);
  --primary:#1FD3E0;
  --primary-600:#12A9B8;
  --primary-soft:rgba(31,211,224,.12);
  --secondary:#5B6BFF;
  --accent:#FF8A3D;
  --hot:#FF4D6D;
  --text-1:#EAF1FF;
  --text-2:#A8B6D4;
  --text-3:#6B7A9B;
  --glow-primary:0 10px 30px rgba(31,211,224,.30);
  --glow-accent:0 8px 24px rgba(255,138,61,.26);
  --grad-brand:linear-gradient(135deg,#1FD3E0 0%,#5B6BFF 100%);
  --r-xs:8px;
  --r-sm:12px;
  --r-md:18px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(3,7,18,.40);
  --sh-2:0 14px 36px rgba(3,7,18,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
}
body.is-locked{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .24s var(--ease);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 顶部状态条 ============ */
.topbar{
  height:38px;
  background:linear-gradient(90deg,rgba(31,211,224,.10),rgba(91,107,255,.10));
  border-bottom:1px solid var(--line);
  font-size:13px;
  color:var(--text-2);
}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:100%;gap:16px;}
.topbar-state{display:inline-flex;align-items:center;gap:8px;}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(31,211,224,.16);}
.topbar-links{display:flex;gap:20px;}
.topbar-links a{color:var(--text-2);}
.topbar-links a:hover{color:var(--text-1);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(5,7,15,.72);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{background:rgba(5,7,15,.94);box-shadow:var(--sh-2);}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px;}
.nav-side{display:flex;align-items:center;gap:28px;flex:1;}
.nav-side.right{justify-content:flex-end;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--grad-brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .28s var(--ease);
  box-shadow:0 0 12px rgba(31,211,224,.6);
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{transform:scaleX(1);}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.01em;color:var(--text-1);}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad-brand);
  display:grid;place-items:center;font-size:14px;color:#04121A;font-weight:800;
  box-shadow:var(--glow-primary);
}
.brand-text{white-space:nowrap;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;border-radius:14px;
  font-size:16px;font-weight:600;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),filter .22s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad-brand);color:#04121A;
  box-shadow:var(--glow-primary);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 14px 38px rgba(31,211,224,.42);}
.btn-primary:active{transform:scale(.985);}
.btn-ghost{
  background:transparent;color:var(--text-1);
  border:1px solid var(--line-strong);
}
.btn-ghost:hover{border-color:rgba(31,211,224,.6);background:var(--primary-soft);transform:translateY(-2px);}
.btn-ghost:active{transform:scale(.985);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:var(--r-sm);}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--primary);
  border-bottom:1px solid rgba(31,211,224,.35);
  padding-bottom:2px;
  transition:border-color .24s var(--ease),color .24s var(--ease);
}
.btn-text:hover{border-color:var(--primary);color:#7FEEFF;}
.btn-text::after{content:"→";font-size:14px;}

.nav-cta{height:42px;padding:0 22px;font-size:15px;border-radius:var(--r-pill);}

/* 汉堡 */
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-sm);
  border:1px solid var(--line-strong);background:var(--surface);
  position:relative;
}
.nav-toggle span{
  position:absolute;left:11px;right:11px;height:2px;background:var(--text-1);border-radius:2px;
  transition:transform .26s var(--ease),opacity .2s var(--ease),top .26s var(--ease);
}
.nav-toggle span:nth-child(1){top:14px;}
.nav-toggle span:nth-child(2){top:19px;}
.nav-toggle span:nth-child(3){top:24px;}
.nav-toggle.is-open span:nth-child(1){top:19px;transform:rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){top:19px;transform:rotate(-45deg);}

.mobile-panel{
  position:fixed;top:0;left:0;right:0;z-index:80;
  padding:96px 24px 28px;
  background:rgba(6,10,22,.98);
  border-bottom:1px solid var(--line);
  transform:translateY(-102%);
  transition:transform .34s var(--ease);
  max-height:100vh;overflow-y:auto;
}
.mobile-panel.is-open{transform:translateY(0);}
.mobile-panel a.m-link{
  display:flex;align-items:center;height:48px;
  border-bottom:1px solid var(--line);
  font-size:16px;color:var(--text-2);
}
.mobile-panel a.m-link.is-active{color:var(--primary);}
.mobile-panel .btn{width:100%;margin-top:20px;}
.overlay{
  position:fixed;inset:0;background:rgba(3,6,14,.6);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.overlay.is-open{opacity:1;visibility:visible;}

/* ============ Hero ============ */
.hero{
  position:relative;
  min-height:88vh;
  display:flex;align-items:center;
  overflow:hidden;
  background:
    radial-gradient(900px 520px at 18% 24%,rgba(31,211,224,.20),transparent 62%),
    radial-gradient(760px 500px at 82% 16%,rgba(91,107,255,.22),transparent 60%),
    linear-gradient(160deg,#070B18 0%,#05070F 100%);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.34;
}
.hero-grid{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(126,166,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(126,166,255,.07) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 30% 40%,#000 10%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 30% 40%,#000 10%,transparent 72%);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:180px;
  background:linear-gradient(to bottom,transparent,var(--bg-0));
}
.hero-inner{position:relative;z-index:3;padding:120px 0 96px;width:100%;}
.hero-content{max-width:660px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;line-height:1;
}
.badge-primary{background:var(--primary-soft);border:1px solid rgba(31,211,224,.42);color:#7FEEFF;}
.badge-accent{background:rgba(255,138,61,.12);border:1px solid rgba(255,138,61,.40);color:#FFB583;}
.badge-hot{background:rgba(255,77,109,.12);border:1px solid rgba(255,77,109,.42);color:#FF93A7;}
.badge-secondary{background:rgba(91,107,255,.14);border:1px solid rgba(91,107,255,.42);color:#A8B2FF;}
.badge-muted{background:rgba(168,182,212,.10);border:1px solid rgba(168,182,212,.28);color:var(--text-2);}

.hero h1{
  margin-top:22px;
  font-size:clamp(30px,5vw,56px);
  line-height:1.12;
  font-weight:800;
  letter-spacing:-.02em;
}
.hero h1 .grad{
  background:var(--grad-brand);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  margin-top:20px;
  font-size:18px;
  line-height:1.7;
  color:var(--text-2);
  max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  margin-top:52px;
  padding-top:26px;
  border-top:1px solid var(--line);
  max-width:660px;
}
.hero-stat .v{
  font-size:26px;font-weight:800;color:var(--primary);line-height:1.25;
}
.hero-stat .v.acc{color:var(--accent);}
.hero-stat .k{font-size:13px;color:var(--text-3);margin-top:4px;}
.scroll-hint{
  position:absolute;right:32px;bottom:40px;z-index:4;
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--text-3);writing-mode:vertical-rl;
}
.scroll-hint::after{
  content:"";width:1px;height:44px;background:linear-gradient(to bottom,var(--primary),transparent);
}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section.alt{background:var(--bg-1);}
.section-head{max-width:720px;margin-bottom:48px;}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--primary);
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--primary-soft);border:1px solid rgba(31,211,224,.28);
}
.section-head h2{
  margin-top:16px;
  font-size:clamp(24px,3.2vw,36px);
  line-height:1.25;font-weight:700;letter-spacing:-.01em;
}
.section-head p{margin-top:14px;font-size:17px;color:var(--text-2);}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ============ 时间轴玩法 ============ */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;
  background:linear-gradient(to bottom,transparent,rgba(31,211,224,.45),rgba(91,107,255,.35),transparent);
  transform:translateX(-50%);
}
.tl-item{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;padding:34px 0;}
.tl-item .tl-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.tl-item .tl-body:hover{transform:translateY(-4px);border-color:rgba(31,211,224,.45);}
.tl-item .tl-media{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(140deg,rgba(31,211,224,.16),rgba(91,107,255,.16));
  min-height:200px;
}
.tl-item .tl-media img{width:100%;height:100%;min-height:200px;object-fit:cover;}
.tl-item:nth-child(even) .tl-body{order:2;}
.tl-node{
  position:absolute;left:50%;top:46px;transform:translate(-50%,-50%);
  width:16px;height:16px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 6px rgba(31,211,224,.14),var(--glow-primary);
  z-index:2;
}
.tl-num{
  font-size:13px;font-weight:700;color:var(--primary);
  letter-spacing:.08em;font-variant-numeric:tabular-nums;
}
.tl-body h3{margin-top:10px;font-size:21px;font-weight:600;line-height:1.4;}
.tl-body p{margin-top:10px;font-size:15px;color:var(--text-2);}

/* ============ 奖励预览 ============ */
.reward-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px;}
.reward-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.reward-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-2);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.reward-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,211,224,.55),transparent);
}
.reward-card:hover{transform:translateY(-4px);border-color:rgba(31,211,224,.45);box-shadow:var(--sh-2),var(--glow-primary);}
.reward-media{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(140deg,rgba(31,211,224,.18),rgba(91,107,255,.20));}
.reward-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.reward-card:hover .reward-media img{transform:scale(1.03);}
.reward-body{padding:20px 22px 24px;}
.reward-top{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.reward-name{font-size:17px;font-weight:600;}
.reward-val{
  margin-top:12px;font-size:30px;font-weight:800;color:var(--accent);
  line-height:1.2;font-variant-numeric:tabular-nums;
}
.reward-val small{font-size:14px;color:var(--text-3);font-weight:500;margin-left:6px;}
.reward-desc{margin-top:8px;font-size:14px;color:var(--text-2);}
.reward-card.legend{border-color:rgba(255,138,61,.34);}
.reward-card.legend .reward-val{color:var(--hot);}
.reward-card.rare{border-color:rgba(31,211,224,.30);}

/* ============ 进度与阶梯 ============ */
.progress-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--sh-2);
}
.progress-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;}
.progress-head span{font-size:15px;color:var(--text-2);}
.progress-head strong{font-size:34px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.1;}
.progress-track{
  margin-top:18px;height:8px;border-radius:var(--r-pill);
  background:rgba(126,166,255,.16);position:relative;overflow:visible;
}
.progress-fill{
  height:100%;border-radius:var(--r-pill);background:var(--grad-brand);
  position:relative;width:0;transition:width 1s var(--ease);
}
.progress-fill::after{
  content:"";position:absolute;right:-4px;top:50%;transform:translateY(-50%);
  width:8px;height:8px;border-radius:50%;background:#9AF6FF;
  box-shadow:0 0 14px rgba(31,211,224,.9);
}
.ladder{
  display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;margin-top:28px;
}
.ladder-card{
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:20px 18px;
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.ladder-card:hover{transform:translateY(-4px);border-color:rgba(31,211,224,.4);}
.ladder-card.is-active{border-color:rgba(31,211,224,.7);box-shadow:var(--glow-primary);position:relative;}
.ladder-card.is-active::after{
  content:"当前";position:absolute;top:-10px;right:12px;
  font-size:12px;line-height:1;padding:5px 10px;border-radius:var(--r-pill);
  background:var(--grad-brand);color:#04121A;font-weight:700;
}
.ladder-idx{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.ladder-card h3{margin-top:8px;font-size:17px;font-weight:600;}
.ladder-card p{margin-top:6px;font-size:13px;color:var(--text-2);}
.ladder-card .mult{margin-top:12px;font-size:20px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;}

/* ============ CTA 区 ============ */
.cta-panel{
  display:grid;grid-template-columns:1.6fr 1fr;gap:40px;align-items:center;
  background:var(--surface-2);
  border:1px solid var(--line-strong);
  border-radius:var(--r-lg);
  padding:44px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);
  position:relative;overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;top:-120px;left:-80px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,211,224,.22),transparent 68%);
  pointer-events:none;
}
.cta-panel h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700;}
.cta-panel p{margin-top:12px;font-size:16px;color:var(--text-2);max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.cta-note{margin-top:16px;font-size:13px;color:var(--text-3);}
.qr-box{
  width:100%;max-width:220px;margin-left:auto;
  aspect-ratio:1/1;border-radius:var(--r-md);
  border:1px dashed rgba(31,211,224,.5);
  background:rgba(5,10,22,.6);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  color:var(--text-2);font-size:13px;text-align:center;padding:16px;
  box-shadow:0 0 30px rgba(31,211,224,.12) inset;
}
.qr-box .qr-mark{width:52px;height:52px;border-radius:var(--r-sm);background:var(--grad-brand);opacity:.85;}

/* ============ 最新信息（CMS） ============ */
.news-layout{display:grid;grid-template-columns:1.25fr 1fr;gap:32px;align-items:start;}
.news-feature{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-2);
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.news-feature:hover{transform:translateY(-4px);border-color:rgba(31,211,224,.45);}
.news-feature .media{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(140deg,rgba(31,211,224,.18),rgba(91,107,255,.20));}
.news-feature .media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.news-feature:hover .media img{transform:scale(1.03);}
.news-feature .body{padding:24px;}
.news-feature h3{margin-top:12px;font-size:22px;line-height:1.4;font-weight:600;}
.news-feature p{margin-top:12px;font-size:15px;color:var(--text-2);}
.meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--text-3);}
.news-list{display:grid;gap:14px;}
.news-row{
  display:grid;grid-template-columns:96px 1fr;gap:16px;
  padding:14px;border-radius:var(--r-md);
  background:var(--surface);
  border:1px solid var(--line);
  transition:transform .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease);
}
.news-row:hover{transform:translateY(-2px);background:rgba(22,32,58,.9);border-color:rgba(31,211,224,.4);}
.news-row .thumb{
  width:96px;height:64px;border-radius:var(--r-sm);overflow:hidden;
  background:linear-gradient(140deg,rgba(31,211,224,.18),rgba(91,107,255,.20));
}
.news-row .thumb img{width:100%;height:100%;object-fit:cover;}
.news-row h4{
  font-size:15px;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-row p{
  margin-top:6px;font-size:13px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-row .meta{margin-top:8px;}
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--r-lg);
  padding:48px 24px;text-align:center;background:rgba(10,16,32,.5);
}
.empty-state .ico{
  width:48px;height:48px;margin:0 auto 14px;border-radius:var(--r-sm);
  border:1px solid var(--line-strong);
  display:grid;place-items:center;color:var(--primary);font-size:22px;
}
.empty-state p{font-size:15px;color:var(--text-2);}
.empty-state .btn{margin-top:18px;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:rgba(255,255,255,.02);
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:14px 22px;text-align:left;
  font-size:16px;font-weight:600;color:var(--text-1);
  transition:color .24s var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-q .icon{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  border:1px solid var(--line-strong);
  display:grid;place-items:center;font-size:15px;color:var(--primary);
  transition:transform .24s var(--ease),background .24s var(--ease);
}
.faq-item.is-open .faq-q .icon{transform:rotate(45deg);background:var(--primary-soft);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a-inner{padding:0 22px 20px;font-size:15px;color:var(--text-2);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding-top:64px;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:600px;height:200px;
  background:radial-gradient(circle,rgba(31,211,224,.14),transparent 70%);
  pointer-events:none;
}
.footer-grid{
  display:grid;grid-template-columns:2fr 2fr 2fr 3fr;gap:40px;
  position:relative;z-index:2;
}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:18px;}
.footer-col p{font-size:14px;color:var(--text-2);}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px;margin-bottom:16px;}
.footer-links{display:grid;gap:12px;}
.footer-links a{font-size:14px;color:var(--text-2);display:inline-block;}
.footer-links a:hover{color:var(--text-1);transform:translateX(2px);}
.footer-contact{margin-top:18px;font-size:14px;color:var(--text-2);display:grid;gap:8px;}
.footer-contact span{color:var(--text-3);}
.form-row{display:flex;gap:12px;}
.form-row input{
  flex:1;height:50px;padding:0 16px;border-radius:var(--r-sm);
  background:rgba(5,10,22,.7);border:1px solid var(--line);
  color:var(--text-1);font-size:15px;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.form-row input::placeholder{color:var(--text-3);}
.form-row input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,211,224,.18);}
.form-row input.is-error{border-color:var(--hot);}
.form-hint{margin-top:10px;font-size:13px;color:var(--text-3);}
.form-hint.err{color:var(--hot);}
.form-hint.ok{color:var(--primary);}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:13px;color:var(--text-3);
}
.to-top{
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line-strong);background:var(--surface);
  display:grid;place-items:center;color:var(--text-2);
  transition:color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
}
.to-top:hover{color:var(--primary);border-color:rgba(31,211,224,.6);transform:translateY(-2px);}

/* 入场动画 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s var(--ease),transform .4s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 24px;}
  .hero{min-height:80vh;}
}
@media (max-width:1023px){
  .nav-side{display:none;}
  .nav-toggle{display:block;}
  .nav{justify-content:space-between;}
  .nav-center{flex:1;display:flex;justify-content:center;}
  .hero{min-height:72vh;}
  .hero-inner{padding:96px 0 72px;}
  .section{padding:72px 0;}
  .timeline::before{left:10px;}
  .tl-item{grid-template-columns:1fr;gap:24px;padding:24px 0 24px 40px;}
  .tl-item:nth-child(even) .tl-body{order:0;}
  .tl-node{left:10px;top:34px;}
  .reward-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-layout{grid-template-columns:1fr;}
  .cta-panel{grid-template-columns:1fr;gap:28px;padding:32px;}
  .qr-box{margin:0;}
  .ladder{grid-template-columns:repeat(5,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .topbar{height:auto;padding:8px 0;}
  .topbar .container{flex-direction:column;align-items:flex-start;gap:6px;}
  .hero{min-height:76vh;}
  .hero-inner{padding:72px 0 64px;}
  .hero-content{max-width:100%;text-align:left;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
  .hero-actions .btn{flex:1 1 100%;}
  .scroll-hint{display:none;}
  .section{padding:56px 0;}
  .reward-grid{grid-template-columns:1fr;}
  .ladder{
    display:flex;overflow-x:auto;gap:14px;padding-bottom:12px;
    scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
  }
  .ladder-card{flex:0 0 220px;scroll-snap-align:start;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .form-row{flex-direction:column;}
  .form-row .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .news-row{grid-template-columns:80px 1fr;gap:12px;}
  .news-row .thumb{width:80px;height:60px;}
}
@media (max-width:420px){
  .hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .btn{width:100%;}
  .nav-cta{display:none;}
  .hero-grid{display:none;}
  .hero-bg{opacity:.24;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg-0:#05070F; --bg-1:#080D1A; --bg-2:#0E1730;
  --surface:rgba(18,26,48,.62); --surface-2:rgba(22,32,58,.80);
  --line:rgba(126,166,255,.14); --line-strong:rgba(126,166,255,.30);
  --primary:#1FD3E0; --primary-600:#12A9B8; --primary-soft:rgba(31,211,224,.12);
  --secondary:#5B6BFF; --accent:#FF8A3D; --hot:#FF4D6D;
  --text-1:#EAF1FF; --text-2:#A8B6D4; --text-3:#6B7A9B; --text-body:#C9D6EF;
  --glow-primary:0 10px 30px rgba(31,211,224,.30);
  --glow-accent:0 8px 24px rgba(255,138,61,.26);
  --grad-brand:linear-gradient(135deg,#1FD3E0 0%,#5B6BFF 100%);
  --r-xs:8px; --r-sm:12px; --r-md:18px; --r-lg:24px; --r-pill:999px;
  --sh-1:0 2px 8px rgba(3,7,18,.40); --sh-2:0 14px 36px rgba(3,7,18,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg-0); color:var(--text-1);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px; line-height:1.85; -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease)}
img{max-width:100%;display:block;height:auto}
button{font-family:inherit;cursor:pointer}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:14px;border:1px solid transparent;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),filter .22s var(--ease);
}
.btn-primary{background:var(--grad-brand);color:#04121A;box-shadow:var(--glow-primary)}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 14px 38px rgba(31,211,224,.45);transform:translateY(-2px)}
.btn-primary:active{transform:scale(.985)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text-1)}
.btn-ghost:hover{border-color:rgba(31,211,224,.6);background:var(--primary-soft);transform:translateY(-2px)}
.btn-ghost:active{transform:scale(.985)}
.btn-sm{height:36px;padding:0 16px;font-size:14px;border-radius:12px}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);
  padding-bottom:2px;border-bottom:1px solid rgba(31,211,224,.35);
}
.link-more:hover{border-color:var(--primary);color:#5be4ee}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;line-height:1;border:1px solid transparent;white-space:nowrap;
}
.badge-cat{background:rgba(91,107,255,.14);border-color:rgba(91,107,255,.38);color:#A6B0FF}
.badge-status{background:var(--primary-soft);border-color:rgba(31,211,224,.4);color:#6FE6EF}
.badge-accent{background:rgba(255,138,61,.14);border-color:rgba(255,138,61,.4);color:#FFB27A}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,7,15,.72);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{background:rgba(5,7,15,.94);box-shadow:var(--sh-1)}
.nav{position:relative;display:flex;align-items:center;justify-content:space-between;height:72px}
.nav-side{display:flex;align-items:center;gap:28px}
.nav-center{position:absolute;left:50%;transform:translateX(-50%)}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.01em}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad-brand);color:#04121A;
  display:grid;place-items:center;font-size:12px;font-weight:800;letter-spacing:.02em;
  box-shadow:0 6px 18px rgba(31,211,224,.35);
}
.nav-link{position:relative;font-size:15px;color:var(--text-2);padding:6px 0}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--grad-brand);
  transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease);box-shadow:0 0 12px rgba(31,211,224,.6);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--primary)}
.nav-cta{height:42px;padding:0 22px;font-size:14px}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:transform .25s var(--ease),opacity .25s var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-panel{
  position:fixed;top:72px;left:0;right:0;z-index:58;background:var(--bg-1);
  border-bottom:1px solid var(--line);box-shadow:var(--sh-2);
  padding:6px 0 20px;transform:translateY(-140%);transition:transform .32s var(--ease);
}
.mobile-panel.is-open{transform:translateY(0)}
.mobile-panel a{display:flex;align-items:center;height:48px;padding:0 24px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line)}
.mobile-panel a:hover{color:var(--text-1);background:rgba(126,166,255,.06)}
.mobile-panel .mobile-cta{margin:16px 24px 0;height:48px;color:#04121A;border-bottom:none;justify-content:center}
.nav-mask{position:fixed;inset:0;background:rgba(3,6,14,.6);z-index:56;opacity:0;pointer-events:none;transition:opacity .3s var(--ease)}
.nav-mask.is-open{opacity:1;pointer-events:auto}

/* ============ 文章页头 ============ */
.article-hero{
  position:relative;overflow:hidden;padding:44px 0 92px;
  background-image:linear-gradient(180deg,rgba(5,7,15,.72),rgba(5,7,15,.94)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(720px 320px at 16% 8%,rgba(31,211,224,.20),transparent 70%),
    radial-gradient(680px 320px at 88% 0%,rgba(91,107,255,.22),transparent 72%);
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(126,166,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(126,166,255,.06) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{margin-bottom:22px}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--text-3);opacity:.6}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}
.crumb-current{display:block;max-width:420px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text-3)}
.article-head{max-width:900px}
.article-head h1{
  font-size:clamp(28px,4.4vw,48px);line-height:1.18;font-weight:800;letter-spacing:-.02em;
  margin:18px 0 20px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--text-3)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong)}
.share-group{display:flex;gap:10px;margin-top:22px}
.share-btn{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:rgba(18,26,48,.62);
  color:var(--text-2);font-size:13px;display:grid;place-items:center;
  backdrop-filter:blur(10px);transition:all .22s var(--ease);
}
.share-btn:hover{border-color:rgba(31,211,224,.55);color:var(--primary);transform:translateY(-2px)}

/* ============ 正文 ============ */
.article-stage{position:relative;margin-top:-64px;padding-bottom:96px}
.article-cover{
  max-width:860px;margin:0 auto 28px;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-2);
  background:linear-gradient(135deg,#0E1730,#05070F);aspect-ratio:16/9;
}
.article-cover img{width:100%;height:100%;object-fit:cover}
.article-card{
  max-width:860px;margin:0 auto;background:#0A1122;border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:44px 48px 52px;
}
.article-body{max-width:760px;margin:0 auto;font-size:18px;line-height:1.9;color:var(--text-body)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  font-size:clamp(21px,2.4vw,27px);line-height:1.35;font-weight:700;color:var(--text-1);
  margin:48px 0 16px;padding-left:14px;border-left:3px solid var(--primary);
}
.article-body h3{font-size:20px;line-height:1.4;font-weight:600;color:var(--text-1);margin:32px 0 12px}
.article-body h4{font-size:17px;font-weight:600;color:var(--text-1);margin:24px 0 10px}
.article-body strong{color:var(--text-1)}
.article-body a{color:#6FE6EF;border-bottom:1px solid rgba(31,211,224,.35)}
.article-body a:hover{color:#9BF1F7;border-color:var(--primary)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.3em}
.article-body li{margin-bottom:8px}
.article-body blockquote{
  margin:24px 0;padding:6px 0 6px 20px;border-left:3px solid var(--primary);
  color:var(--text-2);background:rgba(31,211,224,.05);border-radius:0 12px 12px 0;
}
.article-body img{border-radius:12px;margin:24px auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body table{width:100%;display:block;overflow-x:auto;border-collapse:collapse;margin:24px 0;border:1px solid var(--line);border-radius:12px;font-size:15px}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
.article-body th{background:rgba(18,26,48,.7);color:var(--text-1);font-weight:600}
.article-body pre{
  margin:24px 0;padding:18px 20px;border-radius:12px;border:1px solid var(--line);
  background:#050A16;overflow-x:auto;font-size:14px;line-height:1.7;color:#B9E8FF;
}
.article-body code{font-size:14px;background:rgba(31,211,224,.10);padding:2px 6px;border-radius:6px;color:#8FEBF3}
.article-body pre code{background:none;padding:0;color:inherit}
.article-body hr{border:none;border-top:1px solid var(--line);margin:36px 0}

.empty-state{padding:56px 20px;text-align:center}
.empty-icon{
  width:48px;height:48px;margin:0 auto 18px;border-radius:14px;display:grid;place-items:center;
  border:1px dashed var(--line-strong);color:var(--primary);font-size:20px;font-weight:700;
  background:var(--primary-soft);
}
.empty-state p{color:var(--text-2);margin-bottom:20px}

/* ============ 文末 ============ */
.article-foot{max-width:860px;margin:28px auto 0}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:28px}
.tag-row .tag-label{font-size:13px;color:var(--text-3);margin-right:4px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--text-2);border:1px solid var(--line);background:rgba(18,26,48,.55);
  transition:all .22s var(--ease);
}
.tag:hover{border-color:rgba(31,211,224,.5);color:var(--primary);background:var(--primary-soft)}
.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pn-card{
  display:block;padding:20px 22px;border-radius:var(--r-md);border:1px solid var(--line);
  background:var(--surface);backdrop-filter:blur(14px);transition:all .25s var(--ease);
}
.pn-card:hover{transform:translateY(-4px);border-color:rgba(31,211,224,.45);box-shadow:var(--glow-primary)}
.pn-label{font-size:13px;color:var(--text-3);display:block;margin-bottom:8px}
.pn-title{font-size:16px;font-weight:600;color:var(--text-1)}
.pn-card.next{text-align:right}
.back-row{margin-top:32px;text-align:center}

/* ============ 相关推荐 ============ */
.related{padding:0 0 96px}
.section-head{margin-bottom:32px;max-width:720px}
.section-label{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--primary);
  letter-spacing:.08em;margin-bottom:14px;
}
.section-label::before{content:"";width:22px;height:2px;background:var(--grad-brand);border-radius:2px}
.section-head h2{font-size:clamp(22px,3vw,32px);font-weight:700;letter-spacing:-.01em}
.section-head p{margin-top:12px;color:var(--text-2);font-size:16px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;border-radius:20px;
  border:1px solid var(--line);background:var(--surface);backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.card::before{
  content:"";position:absolute;top:0;left:12%;right:12%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,211,224,.5),transparent);
}
.card:hover{transform:translateY(-4px);border-color:rgba(31,211,224,.45);box-shadow:0 18px 44px rgba(3,7,18,.6),var(--glow-primary)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#0E1730,#05070F)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{font-size:14px;line-height:1.75;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-3);margin-top:auto}

/* ============ CTA ============ */
.cta-band{padding:0 0 96px}
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line-strong);
  background:
    radial-gradient(560px 240px at 12% 0%,rgba(31,211,224,.18),transparent 70%),
    radial-gradient(520px 260px at 92% 100%,rgba(255,138,61,.16),transparent 72%),
    var(--surface-2);
  padding:48px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;
}
.cta-panel h2{font-size:clamp(22px,3vw,32px);font-weight:700;margin-bottom:12px}
.cta-panel p{color:var(--text-2);max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-actions .btn{height:52px;padding:0 30px}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:var(--bg-0);border-top:1px solid var(--line);padding:72px 0 28px;margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:820px;height:220px;
  background:radial-gradient(closest-side,rgba(31,211,224,.14),transparent);pointer-events:none;
}
.footer-grid{position:relative;display:grid;grid-template-columns:2fr 2fr 2fr 3fr;gap:40px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:18px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;margin-bottom:16px}
.footer-col p{font-size:14px;line-height:1.8;color:var(--text-2)}
.footer-contact{margin-top:18px;font-size:13px;color:var(--text-3);display:grid;gap:8px}
.footer-contact span{color:var(--text-2)}
.footer-links{display:grid;gap:12px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--text-1);transform:translateX(2px)}
.form-row{display:flex;gap:12px}
.form-row input{
  flex:1;height:48px;padding:0 16px;border-radius:12px;border:1px solid var(--line);
  background:rgba(5,10,22,.7);color:var(--text-1);font-size:14px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-row input::placeholder{color:var(--text-3)}
.form-row input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,211,224,.18)}
.form-row input.is-error{border-color:var(--hot);box-shadow:0 0 0 3px rgba(255,77,109,.16)}
.form-hint{font-size:13px;color:var(--text-3);margin-top:12px}
.form-hint.is-error{color:var(--hot)}
.form-hint.is-ok{color:var(--primary)}
.footer-bottom{
  position:relative;margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:var(--text-3);
}
.to-top{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:rgba(18,26,48,.6);
  color:var(--text-2);font-size:16px;transition:all .22s var(--ease);
}
.to-top:hover{color:var(--primary);border-color:rgba(31,211,224,.55);background:var(--primary-soft)}

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

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .card-grid{gap:20px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-side,.nav-center{position:static;transform:none}
  .nav-side{display:none}
  .nav-center{position:absolute;left:50%;transform:translateX(-50%)}
  .nav-toggle{display:flex}
  .nav-cta{display:none}
  .article-stage{margin-top:-52px;padding-bottom:72px}
  .article-card{padding:36px 30px 40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .related,.cta-band{padding-bottom:72px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .article-hero{padding:28px 0 76px}
  .article-stage{margin-top:-44px;padding-bottom:56px}
  .article-card{padding:28px 20px 32px;border-radius:var(--r-md)}
  .article-body{font-size:17px;line-height:1.85}
  .article-body h2{margin-top:36px}
  .card-grid{grid-template-columns:1fr}
  .related,.cta-band{padding-bottom:56px}
  .cta-band{padding-bottom:56px}
  .cta-panel{padding:32px 24px;border-radius:var(--r-md)}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .prev-next{grid-template-columns:1fr}
  .pn-card.next{text-align:left}
  .form-row{flex-direction:column}
  .form-row .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .crumb-current{max-width:200px}
}
@media (max-width:520px){
  .article-head h1{font-size:30px}
  .article-cover{border-radius:var(--r-sm)}
  .btn{width:100%}
  .nav-cta,.btn-sm,.share-btn,.to-top,.nav-toggle{width:auto}
  .share-group .share-btn{width:36px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --bg-0:#05070F;
  --bg-1:#080D1A;
  --bg-2:#0E1730;
  --surface:rgba(18,26,48,.62);
  --surface-2:rgba(22,32,58,.80);
  --line:rgba(126,166,255,.14);
  --line-strong:rgba(126,166,255,.30);
  --primary:#1FD3E0;
  --primary-600:#12A9B8;
  --primary-soft:rgba(31,211,224,.12);
  --secondary:#5B6BFF;
  --accent:#FF8A3D;
  --hot:#FF4D6D;
  --text-1:#EAF1FF;
  --text-2:#A8B6D4;
  --text-3:#6B7A9B;
  --glow-primary:0 10px 30px rgba(31,211,224,.30);
  --glow-accent:0 8px 24px rgba(255,138,61,.26);
  --grad-brand:linear-gradient(135deg,#1FD3E0 0%,#5B6BFF 100%);
  --r-xs:8px; --r-sm:12px; --r-md:18px; --r-lg:24px; --r-pill:999px;
  --sh-1:0 2px 8px rgba(3,7,18,.40);
  --sh-2:0 14px 36px rgba(3,7,18,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;}
p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:clamp(56px,8vw,96px) 0;}
.section-tight{padding:clamp(48px,6vw,72px) 0;}
.num{font-variant-numeric:tabular-nums;}

/* ============ HEADER / NAV ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(5,7,15,.72);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{background:rgba(4,6,13,.92);box-shadow:0 10px 30px rgba(3,7,18,.6);}
.nav{display:flex;align-items:center;height:72px;gap:20px;position:relative;}
.nav-side{flex:1;display:flex;align-items:center;gap:28px;}
.nav-side.right{justify-content:flex-end;}
.nav-center{flex:0 0 auto;}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);
  padding:6px 2px;transition:color .24s var(--ease);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--grad-brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform .28s var(--ease);
  box-shadow:0 0 10px rgba(31,211,224,.7);
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{transform:scaleX(1);}
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{
  width:32px;height:32px;border-radius:9px;
  background:var(--grad-brand);
  color:#04121A;font-weight:800;font-size:13px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:.02em;box-shadow:var(--glow-primary);
}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--text-1);}
.nav-cta{height:40px;padding:0 20px;border-radius:var(--r-pill);font-size:14px;box-shadow:var(--glow-primary);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  background:rgba(18,26,48,.7);border:1px solid var(--line);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  position:absolute;right:0;top:16px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:.25s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-panel{
  position:fixed;top:72px;left:0;right:0;z-index:118;
  background:rgba(6,9,19,.98);
  border-bottom:1px solid var(--line);
  padding:12px 32px 24px;
  transform:translateY(-130%);
  transition:transform .34s var(--ease);
  max-height:calc(100vh - 72px);overflow-y:auto;
}
.mobile-panel.is-open{transform:translateY(0);}
.mobile-link{
  display:flex;align-items:center;height:48px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.mobile-link.is-active{color:var(--primary);}
.mobile-cta{width:100%;margin-top:20px;}
.nav-mask{
  position:fixed;inset:0;background:rgba(3,6,14,.6);z-index:117;
  opacity:0;visibility:hidden;transition:.3s var(--ease);
}
.nav-mask.is-open{opacity:1;visibility:visible;}

/* ============ BREADCRUMB ============ */
.breadcrumb{margin-bottom:22px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--text-3);opacity:.6;}
.breadcrumb a{color:var(--text-3);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb [aria-current="page"]{color:var(--text-2);}

/* ============ PAGE HERO ============ */
.page-hero{
  position:relative;overflow:hidden;
  min-height:400px;display:flex;align-items:center;
  padding:132px 0 64px;
  background-image:
    linear-gradient(112deg,rgba(5,7,15,.96) 0%,rgba(8,13,26,.88) 46%,rgba(5,7,15,.70) 100%),
    url('/assets/images/backpic/back-1.png'),
    radial-gradient(900px 480px at 82% 18%,rgba(31,211,224,.20),transparent 62%),
    linear-gradient(160deg,#080D1A 0%,#05070F 100%);
  background-size:cover,cover,cover,cover;
  background-position:center,center,center,center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(126,166,255,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(126,166,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 82%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 82%);
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:120px;
  background:linear-gradient(180deg,transparent,var(--bg-0));pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.page-hero h1{
  font-size:clamp(30px,5vw,56px);font-weight:800;letter-spacing:-.02em;line-height:1.12;
  margin:18px 0 16px;max-width:14em;
}
.page-hero-lead{
  font-size:18px;line-height:1.7;color:var(--text-2);max-width:36em;margin:0;
}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:28px;}
.hero-meta-item{display:flex;flex-direction:column;gap:2px;}
.hero-meta-item strong{font-size:22px;font-weight:800;color:var(--primary);}
.hero-meta-item span{font-size:13px;color:var(--text-3);}

/* ============ BADGES ============ */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;line-height:1;
  border:1px solid transparent;white-space:nowrap;
}
.badge-primary{color:var(--primary);background:var(--primary-soft);border-color:rgba(31,211,224,.35);}
.badge-secondary{color:#9AA6FF;background:rgba(91,107,255,.14);border-color:rgba(91,107,255,.35);}
.badge-accent{color:var(--accent);background:rgba(255,138,61,.14);border-color:rgba(255,138,61,.35);}
.badge-hot{color:var(--hot);background:rgba(255,77,109,.14);border-color:rgba(255,77,109,.35);}
.badge-muted{color:var(--text-2);background:rgba(126,166,255,.08);border-color:var(--line);}

/* ============ SECTION HEAD ============ */
.section-head{max-width:760px;margin-bottom:clamp(32px,4vw,52px);}
.section-head .tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--primary);letter-spacing:.06em;margin-bottom:14px;
}
.section-head .tag::before{content:"";width:22px;height:1px;background:var(--grad-brand);}
.section-head h2{font-size:clamp(24px,3.2vw,36px);font-weight:700;letter-spacing:-.01em;}
.section-head p{margin-top:14px;font-size:17px;line-height:1.75;color:var(--text-2);}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;border-radius:14px;
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease),filter .24s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:scale(.985);}
.btn-primary{background:var(--grad-brand);color:#04121A;box-shadow:var(--glow-primary);}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 14px 38px rgba(31,211,224,.42);}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text-1);}
.btn-ghost:hover{border-color:rgba(31,211,224,.6);background:var(--primary-soft);transform:translateY(-2px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:12px;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--primary);padding:4px 0;
  border-bottom:1px solid transparent;
  background:linear-gradient(var(--primary),var(--primary)) left bottom/0 1px no-repeat;
  transition:background-size .3s var(--ease);
}
.btn-text:hover{background-size:100% 1px;}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;filter:none;}

/* ============ CARDS ============ */
.card{
  position:relative;background:var(--surface);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--sh-2);overflow:hidden;
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,211,224,.55),transparent);
}
.card:hover{transform:translateY(-4px);border-color:rgba(31,211,224,.45);box-shadow:0 18px 44px rgba(3,7,18,.6),var(--glow-primary);}
.card-pad{padding:22px 24px;}

/* ============ FEATURE (图文) ============ */
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,56px);align-items:center;}
.feature-grid.reverse .feature-media{order:2;}
.feature-grid.reverse .feature-body{order:1;}
.feature-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-2);
  background:linear-gradient(140deg,#0E1730,#080D1A 70%);
  aspect-ratio:4/3;
}
.feature-media img{width:100%;height:100%;object-fit:cover;opacity:.92;transition:transform .5s var(--ease);}
.feature-media:hover img{transform:scale(1.04);}
.feature-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.05),rgba(5,7,15,.55));
  pointer-events:none;
}
.feature-media .media-tip{
  position:absolute;left:18px;bottom:16px;z-index:2;
  font-size:13px;color:var(--text-2);
  background:rgba(5,10,22,.7);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:5px 12px;
}
.feature-body h2{font-size:clamp(24px,3.2vw,36px);font-weight:700;margin:14px 0 16px;letter-spacing:-.01em;}
.feature-body>p{font-size:16px;line-height:1.85;color:var(--text-2);}
.step-list{margin-top:26px;display:flex;flex-direction:column;gap:2px;}
.step-list li{
  display:flex;gap:16px;padding:16px 14px;border-radius:var(--r-sm);
  border-top:1px solid var(--line);
  transition:background .24s var(--ease),transform .24s var(--ease);
}
.step-list li:first-child{border-top:0;}
.step-list li:hover{background:rgba(126,166,255,.06);transform:translateX(2px);}
.step-num{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;color:var(--primary);
  background:var(--primary-soft);border:1px solid rgba(31,211,224,.3);
  font-variant-numeric:tabular-nums;
}
.step-text strong{display:block;font-size:16px;font-weight:600;margin-bottom:4px;}
.step-text span{font-size:14px;line-height:1.75;color:var(--text-2);}

/* ============ 4 CARD GRID ============ */
.grid-2x2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.tile{padding:0 0 22px;}
.tile-img{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  background:linear-gradient(140deg,#12204a,#080D1A);
}
.tile-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.tile:hover .tile-img img{transform:scale(1.03);}
.tile-body{padding:20px 24px 0;}
.tile-body .tile-index{
  font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;
  display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;
}
.tile-body h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.tile-body p{font-size:14px;line-height:1.8;color:var(--text-2);}
.tile-foot{display:flex;align-items:center;gap:8px;margin-top:16px;}

/* ============ 进度阶梯 ============ */
.progress-wrap{
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:clamp(24px,3vw,36px);box-shadow:var(--sh-2);
}
.progress-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px;justify-content:space-between;margin-bottom:20px;}
.progress-head h3{font-size:20px;font-weight:600;}
.progress-head .pct{font-size:28px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;}
.track{height:8px;border-radius:var(--r-pill);background:rgba(126,166,255,.14);position:relative;overflow:visible;}
.track-fill{
  height:100%;border-radius:var(--r-pill);background:var(--grad-brand);
  width:68%;position:relative;box-shadow:0 0 18px rgba(31,211,224,.5);
}
.track-fill::after{
  content:"";position:absolute;right:-4px;top:50%;transform:translateY(-50%);
  width:12px;height:12px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 14px rgba(31,211,224,.9);
}
.milestones{
  display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-top:28px;
}
.milestone{
  border:1px solid var(--line);border-radius:var(--r-md);
  background:rgba(10,16,32,.6);padding:18px 16px;
  transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.milestone h4{font-size:15px;font-weight:600;margin-bottom:8px;}
.milestone p{font-size:13px;color:var(--text-3);line-height:1.7;}
.ms-dot{width:10px;height:10px;border-radius:50%;border:1px solid var(--text-3);margin-bottom:12px;}
.milestone.done .ms-dot{background:var(--primary);border-color:var(--primary);box-shadow:0 0 12px rgba(31,211,224,.8);}
.milestone.current{
  border-color:rgba(31,211,224,.55);box-shadow:var(--glow-primary);
  background:linear-gradient(160deg,rgba(31,211,224,.10),rgba(14,23,48,.7));
  position:relative;
}
.milestone.current::after{
  content:"进行中";position:absolute;top:-10px;right:12px;
  font-size:12px;padding:2px 10px;border-radius:var(--r-pill);
  background:var(--grad-brand);color:#04121A;font-weight:700;
}
.milestone:hover{transform:translateY(-3px);border-color:rgba(31,211,224,.4);}

/* ============ 数据条 ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:28px 0;
}
.stat-item strong{display:block;font-size:clamp(24px,3vw,34px);font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;}
.stat-item.accent strong{color:var(--accent);}
.stat-item span{font-size:13px;color:var(--text-3);}

/* ============ 延伸阅读 ============ */
.read-card{display:grid;grid-template-columns:1.1fr 1fr;gap:0;align-items:stretch;}
.read-card .read-media{position:relative;overflow:hidden;min-height:260px;background:linear-gradient(140deg,#12204a,#080D1A);}
.read-card .read-media img{width:100%;height:100%;object-fit:cover;}
.read-card .read-body{padding:clamp(24px,3vw,36px);display:flex;flex-direction:column;justify-content:center;}
.read-card .read-body h3{font-size:clamp(20px,2.4vw,26px);font-weight:700;margin:14px 0 12px;}
.read-card .read-body p{font-size:15px;line-height:1.85;color:var(--text-2);}
.read-card .read-body .btn{margin-top:24px;align-self:flex-start;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  background:rgba(255,255,255,.02);border:1px solid var(--line);
  border-radius:14px;overflow:hidden;transition:border-color .24s var(--ease),background .24s var(--ease);
}
.faq-item.is-open{border-color:rgba(31,211,224,.45);background:rgba(31,211,224,.05);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;text-align:left;
  background:transparent;border:0;font-size:16px;font-weight:600;color:var(--text-1);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);color:var(--primary);font-size:16px;line-height:1;
  transition:transform .24s var(--ease),background .24s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--primary-soft);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s var(--ease);}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--text-2);}
.faq-item.is-open .faq-a{max-height:360px;}

/* ============ CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line-strong);
  background:
    radial-gradient(700px 340px at 12% 12%,rgba(31,211,224,.20),transparent 60%),
    radial-gradient(560px 300px at 88% 88%,rgba(91,107,255,.22),transparent 62%),
    var(--surface-2);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  padding:clamp(28px,4vw,52px);box-shadow:var(--sh-2);
  display:grid;grid-template-columns:1.4fr .8fr;gap:clamp(28px,4vw,48px);align-items:center;
}
.cta-panel h2{font-size:clamp(24px,3vw,34px);font-weight:700;margin:14px 0 14px;}
.cta-panel p{font-size:16px;line-height:1.8;color:var(--text-2);max-width:34em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.cta-note{margin-top:14px;font-size:13px;color:var(--text-3);}
.qr-box{
  width:180px;height:180px;margin:0 auto;border-radius:var(--r-md);
  border:1px dashed rgba(31,211,224,.5);
  background:rgba(5,10,22,.5);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  box-shadow:inset 0 0 30px rgba(31,211,224,.10);
  text-align:center;padding:16px;
}
.qr-box span{font-size:13px;color:var(--text-3);line-height:1.6;}
.qr-mark{width:56px;height:56px;border-radius:14px;background:var(--grad-brand);color:#04121A;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:15px;}

/* ============ FOOTER ============ */
.site-footer{
  position:relative;background:var(--bg-0);border-top:1px solid var(--line);
  padding:clamp(48px,6vw,72px) 0 0;margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:70%;height:220px;
  background:radial-gradient(closest-side,rgba(31,211,224,.10),transparent 70%);
  pointer-events:none;
}
.footer-grid{
  position:relative;display:grid;grid-template-columns:2fr 2fr 2fr 3fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;margin-bottom:16px;}
.footer-col p{font-size:14px;line-height:1.8;color:var(--text-2);}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .2s var(--ease),transform .2s var(--ease);}
.footer-links a:hover{color:var(--text-1);transform:translateX(2px);}
.footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:8px;font-size:14px;color:var(--text-2);}
.footer-contact span{color:var(--text-3);}
.form-row{display:flex;gap:12px;}
.form-row input{
  flex:1;height:50px;padding:0 16px;border-radius:var(--r-sm);
  background:rgba(5,10,22,.7);border:1px solid var(--line);color:var(--text-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-row input::placeholder{color:var(--text-3);}
.form-row input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,211,224,.18);}
.form-row input.is-error{border-color:var(--hot);box-shadow:0 0 0 3px rgba(255,77,109,.18);}
.form-row input.is-ok{border-color:var(--primary);}
.form-hint{margin-top:12px;font-size:13px;color:var(--text-3);}
.form-hint.is-error{color:var(--hot);}
.form-hint.is-ok{color:var(--primary);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  border-top:1px solid var(--line);padding:22px 0 28px;font-size:13px;color:var(--text-3);
}
.to-top{
  width:40px;height:40px;border-radius:50%;
  background:rgba(18,26,48,.7);border:1px solid var(--line);
  color:var(--text-2);font-size:16px;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.to-top:hover{color:var(--primary);border-color:rgba(31,211,224,.5);background:var(--primary-soft);}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s var(--ease),transform .4s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{max-width:100%;}
  .page-hero{min-height:380px;}
}
@media (max-width:1023px){
  .nav-side,.nav-center{display:none;}
  .nav-toggle{display:flex;}
  .nav{justify-content:center;}
  .nav::before{content:"";}
  .nav-center-mobile{display:flex;}
  .page-hero{padding:120px 0 56px;min-height:340px;}
  .feature-grid{grid-template-columns:1fr;gap:32px;}
  .feature-grid.reverse .feature-media{order:0;}
  .feature-grid.reverse .feature-body{order:0;}
  .read-card{grid-template-columns:1fr;}
  .read-card .read-media{min-height:220px;}
  .cta-panel{grid-template-columns:1fr;}
  .qr-box{margin:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .stat-strip{grid-template-columns:repeat(2,1fr);gap:24px;}
  .milestones{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .mobile-panel{padding:12px 20px 24px;}
  .grid-2x2{grid-template-columns:1fr;gap:18px;}
  .milestones{
    display:flex;gap:14px;overflow-x:auto;padding-bottom:10px;
    scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
  }
  .milestone{flex:0 0 76%;scroll-snap-align:start;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .form-row{flex-direction:column;}
  .form-row .btn{width:100%;}
  .qr-box{width:100%;height:170px;}
  .page-hero h1{max-width:100%;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .page-hero{padding:110px 0 48px;min-height:320px;}
  .page-hero-lead{font-size:16px;}
  .btn{width:100%;}
  .btn-text{width:auto;}
  .nav-cta{width:auto;}
  .stat-strip{grid-template-columns:1fr 1fr;}
  .section-head h2{font-size:24px;}
  .hero-meta{gap:14px 22px;}
  .page-hero::before{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  .card:hover,.btn:hover,.milestone:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --bg-0:#05070F;
  --bg-1:#080D1A;
  --bg-2:#0E1730;
  --surface:rgba(18,26,48,.62);
  --surface-2:rgba(22,32,58,.80);
  --line:rgba(126,166,255,.14);
  --line-strong:rgba(126,166,255,.30);
  --primary:#1FD3E0;
  --primary-600:#12A9B8;
  --primary-soft:rgba(31,211,224,.12);
  --secondary:#5B6BFF;
  --accent:#FF8A3D;
  --hot:#FF4D6D;
  --text-1:#EAF1FF;
  --text-2:#A8B6D4;
  --text-3:#6B7A9B;
  --glow-primary:0 10px 30px rgba(31,211,224,.30);
  --glow-accent:0 8px 24px rgba(255,138,61,.26);
  --grad-brand:linear-gradient(135deg,#1FD3E0 0%,#5B6BFF 100%);
  --r-xs:8px;
  --r-sm:12px;
  --r-md:18px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(3,7,18,.40);
  --sh-2:0 14px 36px rgba(3,7,18,.55);
  --sp-section:96px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-locked{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,p,dl,dd,dt,ol,ul{margin:0;}
ol,ul{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(31,211,224,.28);}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.nums{font-variant-numeric:tabular-nums;}

/* ============ 头部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:120;
  height:72px;
  background:rgba(5,7,15,.72);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(4,6,13,.94);
  box-shadow:0 12px 32px rgba(3,7,18,.6);
}
.nav{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  position:relative;
}
.nav-side{
  flex:1;
  display:flex;
  align-items:center;
  gap:30px;
}
.nav-side.right{justify-content:flex-end;gap:22px;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-4px;
  height:2px;
  background:var(--grad-brand);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .28s var(--ease);
  box-shadow:0 0 12px rgba(31,211,224,.6);
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-center{display:flex;justify-content:center;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:19px;
  letter-spacing:-.01em;
  color:var(--text-1);
}
.brand-mark{
  width:32px;height:32px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:9px;
  background:var(--grad-brand);
  color:#04121A;
  font-size:13px;
  font-weight:800;
  letter-spacing:.04em;
  box-shadow:var(--glow-primary);
}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border:1px solid var(--line-strong);
  border-radius:var(--r-sm);
  background:rgba(8,13,26,.7);
  cursor:pointer;
  padding:0;
  position:relative;
}
.nav-toggle span{
  position:absolute;
  left:10px;right:10px;
  height:2px;
  border-radius:2px;
  background:var(--text-1);
  transition:transform .25s var(--ease),opacity .25s var(--ease);
}
.nav-toggle span:nth-child(1){top:13px;}
.nav-toggle span:nth-child(2){top:19px;}
.nav-toggle span:nth-child(3){top:25px;}
.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);}

.mobile-panel{
  position:fixed;
  top:72px;left:0;right:0;
  z-index:118;
  background:rgba(5,7,15,.98);
  border-bottom:1px solid var(--line);
  padding:12px 0 24px;
  transform:translateY(-12px);
  opacity:0;
  transition:transform .28s var(--ease),opacity .28s var(--ease);
  max-height:calc(100vh - 72px);
  overflow-y:auto;
}
.mobile-panel.is-open{transform:translateY(0);opacity:1;}
.mobile-panel .container{display:flex;flex-direction:column;}
.mp-link{
  display:flex;
  align-items:center;
  min-height:48px;
  font-size:16px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.mp-link.is-active{color:var(--primary);}
.mp-cta{margin-top:20px;width:100%;justify-content:center;}

/* ============ 按钮与徽章 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:52px;
  padding:0 28px;
  border-radius:14px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),opacity .2s var(--ease);
}
.btn-primary{
  background:var(--grad-brand);
  color:#04121A;
  box-shadow:var(--glow-primary);
}
.btn-primary:hover{
  transform:translateY(-2px);
  filter:brightness(1.08);
  box-shadow:0 14px 38px rgba(31,211,224,.42);
}
.btn-primary:active{transform:scale(.985);}
.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text-1);
}
.btn-ghost:hover{
  border-color:rgba(31,211,224,.6);
  background:var(--primary-soft);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:scale(.985);}
.btn-sm{height:48px;padding:0 22px;}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  color:var(--primary);
  padding-bottom:2px;
  border-bottom:1px solid rgba(31,211,224,.35);
}
.btn-link:hover{border-color:var(--primary);color:var(--text-1);}
.btn[disabled],.btn.is-disabled{
  opacity:.45;
  box-shadow:none;
  cursor:not-allowed;
  transform:none;
  filter:none;
}
.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  font-size:13px;
  line-height:1;
  border:1px solid transparent;
}
.badge-cat{background:rgba(91,107,255,.14);border-color:rgba(91,107,255,.42);color:#A9B2FF;}
.badge-live{background:rgba(31,211,224,.12);border-color:rgba(31,211,224,.42);color:var(--primary);}
.badge-rare{background:rgba(31,211,224,.12);border-color:rgba(31,211,224,.42);color:var(--primary);}
.badge-epic{background:rgba(255,138,61,.13);border-color:rgba(255,138,61,.45);color:var(--accent);}
.badge-legend{background:rgba(255,77,109,.13);border-color:rgba(255,77,109,.45);color:var(--hot);}
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-xs);
  font-size:13px;
  color:var(--text-2);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
}

/* ============ 面包屑 ============ */
.breadcrumb{
  padding-top:96px;
  background:var(--bg-0);
}
.breadcrumb ol{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  padding:16px 0 0;
}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--text-3);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb [aria-current="page"]{color:var(--text-2);}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  min-height:400px;
  display:flex;
  align-items:center;
  margin-top:8px;
  background:
    linear-gradient(180deg,rgba(5,7,15,.55) 0%,rgba(5,7,15,.90) 78%,var(--bg-0) 100%),
    radial-gradient(900px 420px at 18% 20%,rgba(31,211,224,.16),transparent 62%),
    radial-gradient(700px 380px at 82% 78%,rgba(91,107,255,.18),transparent 66%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat,
    linear-gradient(135deg,#0E1730,#05070F);
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(126,166,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(126,166,255,.06) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;padding-top:52px;padding-bottom:64px;}
.page-hero h1{
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.14;
  font-weight:800;
  letter-spacing:-.02em;
  max-width:16em;
  margin:18px 0 18px;
}
.page-hero p.lead{
  font-size:18px;
  line-height:1.7;
  color:var(--text-2);
  max-width:46em;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}

/* ============ 板块 ============ */
.section{padding:var(--sp-section) 0;}
.section.tight{padding:64px 0;}
.section-head{
  max-width:760px;
  margin-bottom:44px;
}
.section-head .kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--primary);
  letter-spacing:.06em;
  margin-bottom:14px;
}
.section-head .kicker::before{
  content:"";
  width:22px;height:1px;
  background:var(--grad-brand);
}
.section-head h2{
  font-size:clamp(24px,3.2vw,36px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.01em;
}
.section-head p{
  margin-top:14px;
  color:var(--text-2);
  font-size:17px;
}
.section-head.row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  max-width:none;
}

/* ============ 数据条 ============ */
.stat-bar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
}
.stat{
  background:var(--bg-1);
  padding:24px 22px;
}
.stat .num{
  display:block;
  font-size:clamp(24px,2.6vw,32px);
  font-weight:800;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.stat .num.accent{color:var(--accent);}
.stat .num.second{color:#9BA6FF;}
.stat .label{
  display:block;
  margin-top:8px;
  font-size:13px;
  color:var(--text-3);
}

/* ============ 档位矩阵 ============ */
.tier-grid{
  display:grid;
  grid-template-columns:1.45fr 1fr 1fr;
  grid-auto-rows:minmax(0,auto);
  gap:20px;
}
.tier-card{
  position:relative;
  background:var(--surface);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px;
  box-shadow:var(--sh-2);
  overflow:hidden;
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.tier-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,211,224,.45),transparent);
}
.tier-card:hover{
  transform:translateY(-4px);
  border-color:rgba(31,211,224,.45);
  box-shadow:var(--sh-2),var(--glow-primary);
}
.tier-card.tier-hot{border-color:rgba(255,77,109,.35);}
.tier-card.tier-hot:hover{border-color:rgba(255,77,109,.6);box-shadow:var(--sh-2),0 10px 30px rgba(255,77,109,.24);}
.tier-card.tier-accent{border-color:rgba(255,138,61,.32);}
.tier-card.feature{
  grid-row:span 2;
  display:flex;
  flex-direction:column;
  padding:0;
}
.tier-card.feature .tier-cover{
  position:relative;
  aspect-ratio:16/9;
  background:linear-gradient(135deg,#0E1730,#05070F);
  overflow:hidden;
}
.tier-card.feature .tier-cover img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.tier-card.feature:hover .tier-cover img{transform:scale(1.03);}
.tier-card.feature .tier-body{
  padding:24px 24px 26px;
  display:flex;
  flex-direction:column;
  gap:12px;
  flex:1;
}
.tier-card h3{
  font-size:20px;
  font-weight:600;
  line-height:1.4;
}
.tier-card.feature h3{font-size:24px;}
.tier-card p{color:var(--text-2);font-size:15px;}
.tier-value{
  font-size:28px;
  font-weight:800;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.tier-meta{
  margin-top:auto;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
}
.tier-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:14px;
}
.tier-list{
  display:flex;
  flex-direction:column;
  gap:8px;
  margin-top:6px;
}
.tier-list li{
  position:relative;
  padding-left:16px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.7;
}
.tier-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 8px rgba(31,211,224,.7);
}

/* ============ 术语对照 ============ */
.def-wrap{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:36px;
}
.def-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:0 48px;
}
.def-item{
  padding:20px 0;
  border-bottom:1px solid var(--line);
}
.def-item dt{
  font-size:16px;
  font-weight:600;
  color:var(--text-1);
  display:flex;
  align-items:center;
  gap:10px;
}
.def-item dt .idx{
  font-size:13px;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
}
.def-item dd{
  margin-top:8px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.8;
}

/* ============ 发放节奏 ============ */
.step-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  position:relative;
}
.step-card{
  position:relative;
  background:var(--surface);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 22px 24px;
  box-shadow:var(--sh-2);
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.step-card:hover{transform:translateY(-4px);border-color:rgba(31,211,224,.45);}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:12px;
  background:var(--primary-soft);
  border:1px solid rgba(31,211,224,.4);
  color:var(--primary);
  font-weight:800;
  font-size:15px;
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.step-card h3{font-size:18px;font-weight:600;margin-bottom:10px;}
.step-card p{font-size:15px;color:var(--text-2);}

/* ============ 公告入口 ============ */
.entry-list{
  display:flex;
  flex-direction:column;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  background:var(--surface);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.entry-row{
  display:flex;
  align-items:center;
  gap:20px;
  padding:18px 22px;
  border-bottom:1px solid var(--line);
  transition:background .24s var(--ease),transform .24s var(--ease);
}
.entry-row:last-child{border-bottom:0;}
.entry-row:hover{background:rgba(126,166,255,.06);transform:translateX(2px);}
.entry-thumb{
  flex:0 0 96px;
  width:96px;height:64px;
  border-radius:var(--r-sm);
  overflow:hidden;
  background:linear-gradient(135deg,#0E1730,#05070F);
  border:1px solid var(--line);
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;}
.entry-main{flex:1;min-width:0;}
.entry-main h3{
  font-size:16px;
  font-weight:600;
  line-height:1.5;
  margin-bottom:6px;
  overflow:hidden;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
}
.entry-main p{
  font-size:14px;
  color:var(--text-2);
  overflow:hidden;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
}
.entry-side{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:10px;
  flex:0 0 auto;
}
.entry-time{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:rgba(255,255,255,.02);
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.faq-item[open]{border-color:rgba(31,211,224,.38);background:rgba(31,211,224,.05);}
.faq-item summary{
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 22px;
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 26px;
  width:26px;height:26px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line-strong);
  color:var(--primary);
  font-size:16px;
  line-height:1;
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(45deg);border-color:rgba(31,211,224,.6);}
.faq-body{
  padding:0 22px 20px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.85;
}

/* ============ 通栏 CTA ============ */
.cta-band{
  position:relative;
  background:
    radial-gradient(720px 320px at 20% 30%,rgba(31,211,224,.16),transparent 62%),
    radial-gradient(560px 300px at 88% 70%,rgba(91,107,255,.18),transparent 66%),
    var(--surface-2);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  overflow:hidden;
  box-shadow:var(--sh-2);
}
.cta-band h2{
  font-size:clamp(22px,2.8vw,30px);
  font-weight:700;
  line-height:1.3;
  margin-bottom:12px;
}
.cta-band p{color:var(--text-2);font-size:16px;max-width:34em;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}
.cta-note{margin-top:16px;font-size:13px;color:var(--text-3);}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--sp-section);
  background:var(--bg-0);
  border-top:1px solid var(--line);
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;left:0;right:0;
  height:220px;
  background:radial-gradient(600px 200px at 12% 0%,rgba(31,211,224,.10),transparent 70%);
  pointer-events:none;
}
.site-footer .container{position:relative;z-index:1;}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 2fr 2fr 3fr;
  gap:40px;
  padding:64px 0 44px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:18px;
  margin-bottom:16px;
}
.footer-col p{font-size:14px;color:var(--text-2);line-height:1.8;}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--text-1);
  margin-bottom:18px;
}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{
  font-size:14px;
  color:var(--text-2);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-links a:hover{color:var(--text-1);transform:translateX(2px);}
.footer-contact{margin-top:18px;font-size:14px;color:var(--text-2);display:flex;flex-direction:column;gap:6px;}
.footer-contact span{color:var(--text-3);}
.form-row{display:flex;gap:10px;}
.form-row input{
  flex:1;
  height:50px;
  padding:0 16px;
  border-radius:12px;
  background:rgba(5,10,22,.7);
  border:1px solid var(--line);
  color:var(--text-1);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.form-row input::placeholder{color:var(--text-3);}
.form-row input:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(31,211,224,.18);
}
.form-row .btn{height:50px;padding:0 22px;}
.form-hint{margin-top:12px;font-size:13px;color:var(--text-3);}
.form-hint.is-error{color:var(--hot);}
.form-hint.is-ok{color:var(--primary);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}
.to-top{
  width:40px;height:40px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  background:rgba(18,26,48,.7);
  color:var(--text-2);
  cursor:pointer;
  font-size:16px;
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.to-top:hover{color:var(--primary);border-color:rgba(31,211,224,.6);transform:translateY(-2px);}

/* ============ 入场动效 ============ */
[data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .4s var(--ease),transform .4s var(--ease);
}
[data-reveal].is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 28px;}
  .def-grid{gap:0 36px;}
}
@media (max-width:1023px){
  .nav-side{display:none;}
  .nav-toggle{display:block;}
  .nav{justify-content:space-between;}
  .nav-center{flex:1;justify-content:flex-start;padding-left:4px;}
  .breadcrumb{padding-top:88px;}
  .page-hero{min-height:360px;}
  .page-hero .container{padding-top:40px;padding-bottom:52px;}
  :root{--sp-section:72px;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .tier-grid{grid-template-columns:repeat(2,1fr);}
  .tier-card.feature{grid-row:span 1;grid-column:span 2;}
  .step-row{grid-template-columns:repeat(2,1fr);}
  .def-grid{grid-template-columns:1fr;gap:0;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  body{font-size:15px;}
  :root{--sp-section:56px;}
  .page-hero{min-height:340px;text-align:left;}
  .page-hero h1{font-size:clamp(28px,7vw,36px);}
  .page-hero p.lead{font-size:16px;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .stat{padding:18px 16px;}
  .tier-grid{grid-template-columns:1fr;}
  .tier-card.feature{grid-column:span 1;}
  .step-row{grid-template-columns:1fr;}
  .def-wrap{padding:24px 20px;}
  .entry-row{flex-wrap:wrap;gap:14px;}
  .entry-thumb{flex:0 0 84px;width:84px;height:58px;}
  .entry-side{align-items:flex-start;flex-direction:row;justify-content:space-between;width:100%;}
  .cta-band{padding:28px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .form-row{flex-direction:column;}
  .form-row .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 32px;}
  .footer-bottom{justify-content:flex-start;}
}
@media (max-width:520px){
  .stat-bar{grid-template-columns:1fr;}
  .page-hero .container{padding-top:32px;}
  .section-head.row{flex-direction:column;align-items:flex-start;}
  .badge{font-size:12px;}
}
@media (max-width:420px){
  .page-hero h1{font-size:30px;}
  .btn{width:100%;}
  .btn-sm{width:100%;}
  .page-hero::after{display:none;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  [data-reveal]{opacity:1 !important;transform:none !important;}
  .tier-card:hover,.step-card:hover,.btn:hover{transform:none;}
}