/* roulang page: index */
:root{
  --bg:#060A17;
  --bg-2:#0B1226;
  --glass:rgba(255,255,255,0.04);
  --line:rgba(255,255,255,0.08);
  --primary:#22D3EE;
  --primary-deep:#0EA5C9;
  --secondary:#7C6BFF;
  --mint:#5BF0C0;
  --text:#E8EEF9;
  --muted:#9AA9C4;
  --dim:#61708C;
  --danger:#FF6B81;
  --radius-s:10px;
  --radius:18px;
  --radius-l:24px;
  --shadow:0 8px 30px rgba(0,0,0,0.35);
  --shadow-hi:0 16px 44px rgba(0,0,0,0.52);
  --ease:220ms ease;
  --mono:"Space Grotesk","Outfit",Inter,system-ui,-apple-system,sans-serif;
  font-synthesis-weight:none;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;}
p{margin:0;}
.bg-glow{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(1100px 640px at 6% -6%, rgba(34,211,238,0.11), transparent 62%),
    radial-gradient(1000px 680px at 98% 92%, rgba(124,107,255,0.12), transparent 64%);
}
.site-header,.announce,main,.site-footer{position:relative;z-index:1;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:768px){.container{padding:0 28px;}}
@media (min-width:1200px){.container{padding:0 40px;}}
@media (min-width:1400px){.container{max-width:1280px;}}
.section{padding:96px 0;position:relative;}
.section + .section{border-top:1px solid transparent;border-image:linear-gradient(90deg,transparent,rgba(34,211,238,0.22),rgba(124,107,255,0.18),transparent) 1;}
@media (max-width:1023px){.section{padding:72px 0;}}
@media (max-width:767px){.section{padding:56px 0;}}
section[id]{scroll-margin-top:96px;}

/* ---------- 公告条 ---------- */
.announce{
  background:rgba(34,211,238,0.08);
  border-bottom:1px solid rgba(34,211,238,0.16);
  font-size:13px;
}
.announce.is-hidden{display:none;}
.announce-inner{
  display:flex;align-items:center;justify-content:center;gap:14px;
  min-height:36px;padding-top:6px;padding-bottom:6px;
}
.announce p{color:#B9E9F4;display:flex;align-items:center;gap:8px;line-height:1.5;text-align:center;}
.announce p i{color:var(--primary);}
.announce-close{
  background:transparent;border:1px solid rgba(34,211,238,0.3);color:var(--primary);
  width:22px;height:22px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  font-size:11px;cursor:pointer;flex:0 0 auto;transition:background var(--ease),border-color var(--ease);
}
.announce-close:hover{background:rgba(34,211,238,0.16);border-color:var(--primary);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(6,10,23,0.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{
  background:rgba(4,7,15,0.94);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,0.4);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--primary);
  background:linear-gradient(140deg,rgba(34,211,238,0.18),rgba(124,107,255,0.16));
  border:1px solid rgba(34,211,238,0.35);
  box-shadow:0 0 20px rgba(34,211,238,0.18);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-0.01em;color:var(--text);white-space:nowrap;}
.logo-text em{font-style:normal;font-family:var(--mono);color:var(--primary);font-weight:600;padding:0 2px;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;color:var(--muted);font-size:15px;font-weight:500;padding:6px 0;
  white-space:nowrap;transition:color var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link.is-active{color:var(--text);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
  box-shadow:0 0 12px rgba(34,211,238,0.8);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;padding:15px 28px;border-radius:999px;
  border:1px solid transparent;cursor:pointer;
  transition:transform 180ms ease,box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease),filter var(--ease);
}
.btn-primary{
  background:linear-gradient(100deg,#22D3EE,#7C6BFF);color:#04121A;
  box-shadow:0 8px 28px rgba(34,211,238,0.28),0 0 0 1px rgba(34,211,238,0.45);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(34,211,238,0.42),0 0 0 1px rgba(34,211,238,0.72);filter:brightness(1.07);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:rgba(34,211,238,0.55);color:var(--primary);}
.btn-ghost:hover{background:rgba(34,211,238,0.10);border-color:rgba(34,211,238,0.92);}
.btn-ghost:active{transform:translateY(1px);}
.btn-glow{
  background:rgba(34,211,238,0.12);border-color:rgba(34,211,238,0.75);color:var(--primary);
  box-shadow:0 0 18px rgba(34,211,238,0.25);
}
.btn-glow:hover{background:rgba(34,211,238,0.2);box-shadow:0 0 26px rgba(34,211,238,0.42);transform:translateY(-2px);}
.btn-sm{padding:11px 20px;font-size:14px;border-radius:999px;}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:3px;}
.btn[disabled]{opacity:.4;box-shadow:none;pointer-events:none;}
.link-cta{
  display:inline-flex;align-items:center;gap:7px;color:var(--primary);
  font-size:15px;font-weight:600;transition:color var(--ease);
}
.link-cta i{transition:transform var(--ease);}
.link-cta:hover{color:#6FE7F8;}
.link-cta:hover i{transform:translateX(4px);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,0.05);
  border:1px solid var(--line);cursor:pointer;padding:0;position:relative;flex:0 0 auto;
}
.nav-toggle span{
  position:absolute;left:11px;right:11px;height:2px;border-radius:2px;background:var(--text);
  transition:transform var(--ease),opacity var(--ease),top var(--ease);
}
.nav-toggle span:nth-child(1){top:14px;}
.nav-toggle span:nth-child(2){top:20px;}
.nav-toggle span:nth-child(3){top:26px;}
.nav-toggle.is-open span:nth-child(1){top:20px;transform:rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){top:20px;transform:rotate(-45deg);}
.nav-overlay{
  position:fixed;inset:0;background:rgba(2,5,12,0.66);backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:120;
}
.nav-overlay.is-open{opacity:1;visibility:visible;}
@media (max-width:991px){
  .nav{height:64px;}
  .nav-toggle{display:block;}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:84%;max-width:360px;
    background:rgba(8,13,28,0.97);backdrop-filter:blur(18px);
    border-left:1px solid var(--line);z-index:130;
    display:flex;flex-direction:column;align-items:stretch;gap:4px;
    padding:92px 26px 34px;transform:translateX(104%);
    transition:transform 280ms ease;overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-link{padding:14px 12px;font-size:16px;border-radius:12px;border-bottom:1px solid rgba(255,255,255,0.05);}
  .nav-link.is-active{background:rgba(34,211,238,0.08);}
  .nav-link.is-active::after{left:12px;right:auto;width:3px;height:20px;bottom:auto;top:16px;border-radius:3px;}
  .nav-cta{margin-top:18px;width:100%;}
}

/* ---------- Hero ---------- */
.hero{position:relative;display:flex;align-items:center;min-height:84vh;padding:84px 0 88px;overflow:hidden;}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.62;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(6,10,23,0.97) 0%,rgba(6,10,23,0.80) 44%,rgba(6,10,23,0.42) 100%),
    linear-gradient(180deg,rgba(6,10,23,0.62) 0%,rgba(6,10,23,0.22) 38%,rgba(6,10,23,1) 100%);
}
.hero-inner{
  position:relative;z-index:2;width:100%;
  display:grid;grid-template-columns:1.4fr 0.9fr;gap:52px;align-items:center;
}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:#8FE4F3;background:rgba(34,211,238,0.10);border:1px solid rgba(34,211,238,0.32);
  padding:7px 15px;border-radius:999px;margin-bottom:22px;
}
.hero h1{
  font-size:clamp(30px,4.6vw,56px);line-height:1.15;font-weight:700;letter-spacing:-0.01em;
  background:linear-gradient(120deg,#FFFFFF 12%,#CBEEFB 48%,#A99BFF 96%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  max-width:16em;
}
.hero-sub{
  margin-top:22px;font-size:17px;line-height:1.85;color:var(--muted);max-width:34em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.hero-tags li{
  font-size:13px;color:#B8C6E0;padding:7px 15px;border-radius:999px;
  border:1px solid rgba(255,255,255,0.14);background:rgba(255,255,255,0.04);
  transition:border-color var(--ease),color var(--ease),transform var(--ease);
}
.hero-tags li:hover{border-color:rgba(34,211,238,0.6);color:#CFF3FB;transform:translateY(-2px);}
.hero-card{
  background:rgba(10,17,36,0.62);border:1px solid rgba(34,211,238,0.24);border-radius:var(--radius-l);
  padding:26px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 16px 46px rgba(0,0,0,0.5);
}
.hero-card-head{
  display:flex;align-items:center;gap:9px;font-size:13px;color:var(--muted);
  padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:18px;
}
.hero-card-head .dot{
  width:8px;height:8px;border-radius:50%;background:var(--mint);
  box-shadow:0 0 10px rgba(91,240,192,0.9);flex:0 0 auto;
}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.stat b{
  display:block;font-family:var(--mono);font-size:30px;font-weight:700;line-height:1.1;
  color:var(--mint);letter-spacing:-0.02em;
}
.stat span{display:block;margin-top:6px;font-size:13px;color:var(--dim);}
.hero-card-note{margin-top:20px;font-size:14px;line-height:1.8;color:var(--muted);}
@media (max-width:1023px){
  .hero{min-height:auto;padding:64px 0 68px;}
  .hero-inner{grid-template-columns:1fr;gap:34px;}
  .hero h1{max-width:none;}
}
@media (max-width:767px){
  .hero{min-height:560px;padding:52px 0 58px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
}

/* ---------- 通用板块头部 ---------- */
.section-head{margin-bottom:44px;max-width:760px;}
.section-head.row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  max-width:none;flex-wrap:wrap;
}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--primary);padding:6px 14px;border-radius:999px;
  background:rgba(34,211,238,0.07);border:1px solid rgba(34,211,238,0.32);margin-bottom:16px;
}
.section-head h2{font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:700;}
.section-sub{margin-top:16px;font-size:16px;line-height:1.85;color:var(--muted);max-width:44em;}

/* ---------- 卡片基类 ---------- */
.card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,0.5);box-shadow:var(--shadow-hi);}

/* ---------- 玩法介绍（1 大 2 小拼贴） ---------- */
.play-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;}
.play-main{
  grid-row:span 2;padding:34px;border-radius:var(--radius-l);
  background:linear-gradient(155deg,rgba(34,211,238,0.09),rgba(124,107,255,0.06) 62%,transparent);
  display:flex;flex-direction:column;justify-content:center;
}
.play-main .num{
  display:block;font-family:var(--mono);font-size:48px;font-weight:700;line-height:1;
  color:rgba(34,211,238,0.4);letter-spacing:-0.03em;margin-bottom:18px;
}
.play-main h3{font-size:23px;line-height:1.45;margin-bottom:14px;}
.play-main p{font-size:16px;color:var(--muted);line-height:1.9;}
.play-small{display:flex;gap:16px;align-items:flex-start;padding:22px;}
.play-small .ico{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(124,107,255,0.14);border:1px solid rgba(124,107,255,0.34);color:#A99BFF;font-size:16px;
}
.play-small h3{font-size:17px;margin-bottom:8px;}
.play-small p{font-size:14.5px;color:var(--muted);line-height:1.75;}
@media (max-width:1023px){
  .play-grid{grid-template-columns:1fr;}
  .play-main{grid-row:auto;}
}

/* ---------- 奖励轨道 ---------- */
.rail-wrap{position:relative;}
.rail-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px max(20px,calc((100vw - 1200px) / 2)) 26px;
  scrollbar-width:thin;
}
.rail-track::-webkit-scrollbar{height:6px;}
.rail-track::-webkit-scrollbar-track{background:rgba(255,255,255,0.04);border-radius:99px;}
.rail-track::-webkit-scrollbar-thumb{background:rgba(34,211,238,0.4);border-radius:99px;}
.reward-card{
  position:relative;flex:0 0 280px;scroll-snap-align:start;
  background:linear-gradient(160deg,rgba(34,211,238,0.09),rgba(124,107,255,0.06));
  border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px 24px;
  transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.reward-card:hover{
  transform:translateY(-4px);
  border-color:rgba(34,211,238,0.62);
  box-shadow:0 0 28px rgba(34,211,238,0.22),var(--shadow-hi);
}
.reward-tag{
  position:absolute;top:14px;right:14px;font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:var(--radius-s);line-height:1.5;
}
.tag-hot{background:rgba(34,211,238,0.16);color:#8FE4F3;border:1px solid rgba(34,211,238,0.4);}
.tag-limit{background:rgba(124,107,255,0.18);color:#B7ACFF;border:1px solid rgba(124,107,255,0.44);}
.reward-num{font-family:var(--mono);font-size:38px;font-weight:700;line-height:1.1;color:var(--mint);letter-spacing:-0.02em;}
.reward-name{margin-top:10px;font-size:17px;font-weight:600;}
.reward-desc{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.75;}
.reward-meta{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--dim);}
.rail-hint{
  padding:0 20px;font-size:13px;color:var(--dim);
  display:flex;align-items:center;gap:8px;margin-bottom:40px;
}
.rail-hint i{color:var(--primary);}
@media (min-width:768px){.rail-hint{padding:0 28px;}}
@media (min-width:1200px){.rail-hint{padding:0 40px;}}

/* ---------- 任务进度 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px;}
.step{position:relative;padding-top:0;}
.step::before{
  content:"";position:absolute;left:14px;right:-24px;top:6px;height:2px;
  background:rgba(255,255,255,0.09);z-index:0;
}
.step:last-child::before{display:none;}
.step.is-done::before{background:linear-gradient(90deg,var(--mint),rgba(91,240,192,0.28));}
.step-dot{
  position:relative;z-index:2;display:block;width:14px;height:14px;border-radius:50%;
  border:2px solid var(--dim);background:transparent;margin-bottom:20px;
}
.step.is-done .step-dot{background:var(--mint);border-color:var(--mint);box-shadow:0 0 0 4px rgba(91,240,192,0.14);}
.step.is-active .step-dot{border-color:var(--primary);animation:pulseRing 1.9s infinite;}
@keyframes pulseRing{
  0%{box-shadow:0 0 0 0 rgba(34,211,238,0.55);}
  70%{box-shadow:0 0 0 12px rgba(34,211,238,0);}
  100%{box-shadow:0 0 0 0 rgba(34,211,238,0);}
}
.step-label{display:block;font-size:13px;color:var(--dim);margin-bottom:8px;}
.step.is-done .step-label{color:var(--mint);}
.step.is-active .step-label{color:var(--primary);}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--muted);line-height:1.75;}
.progress-cta{margin-top:40px;display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.progress-cta span{font-size:14px;color:var(--dim);}
@media (max-width:1023px){
  .steps{grid-template-columns:repeat(2,1fr);gap:28px 24px;}
  .step::before{right:-24px;}
  .step:nth-child(2)::before{display:none;}
}
@media (max-width:520px){
  .steps{grid-template-columns:1fr;gap:26px;}
  .step::before{display:none;}
}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,0.5);box-shadow:var(--shadow-hi);}
.news-cover{
  position:relative;display:block;aspect-ratio:16/9;overflow:hidden;border-radius:14px;
  margin:12px 12px 0;background:#0B1226;
}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease;}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,23,0.25),rgba(6,10,23,0.05) 40%,rgba(6,10,23,0.55));
}
.news-badge{
  position:absolute;top:10px;left:10px;z-index:2;font-size:12px;font-weight:600;
  padding:4px 11px;border-radius:var(--radius-s);
  background:rgba(6,10,23,0.72);border:1px solid rgba(34,211,238,0.45);color:#8FE4F3;
  backdrop-filter:blur(6px);
}
.news-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1;}
.news-title{font-size:17px;line-height:1.55;margin-bottom:10px;}
.news-title a{transition:color var(--ease);}
.news-title a:hover{color:var(--primary);}
.news-title{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-excerpt{
  font-size:14.5px;color:var(--muted);line-height:1.75;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.news-date{font-size:13px;color:var(--dim);font-family:var(--mono);}
.news-more{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.news-more i{transition:transform var(--ease);}
.news-more:hover i{transform:translateX(4px);}
.empty-state{
  grid-column:1 / -1;text-align:center;padding:64px 24px;
  background:var(--glass);border:1px dashed rgba(34,211,238,0.28);border-radius:var(--radius-l);
}
.empty-state i{font-size:34px;color:rgba(34,211,238,0.55);}
.empty-state p{margin:16px 0 14px;font-size:14px;color:var(--muted);}
@media (max-width:1023px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:767px){.news-grid{grid-template-columns:1fr;}}

/* ---------- 用户声音 ---------- */
.voices{
  display:grid;grid-template-columns:0.85fr 1.15fr;gap:40px;align-items:start;
  background:linear-gradient(150deg,rgba(124,107,255,0.08),rgba(34,211,238,0.05) 58%,transparent);
  border:1px solid var(--line);border-radius:var(--radius-l);padding:40px;
}
.voices h2{font-size:clamp(24px,3vw,34px);line-height:1.3;margin-bottom:16px;}
.voices-intro p{font-size:15.5px;color:var(--muted);line-height:1.9;}
.voices-stats{display:flex;flex-wrap:wrap;gap:26px;margin-top:26px;}
.voices-stats li{font-size:13px;color:var(--dim);}
.voices-stats b{
  display:block;font-family:var(--mono);font-size:26px;font-weight:700;color:var(--primary);
  line-height:1.2;letter-spacing:-0.02em;
}
.voices-list{display:flex;flex-direction:column;gap:18px;}
.voices-list blockquote{
  margin:0;padding:22px 24px;border-radius:var(--radius);
  background:rgba(255,255,255,0.04);border:1px solid var(--line);
  border-left:3px solid rgba(34,211,238,0.6);
  font-size:15.5px;color:#C9D6EC;line-height:1.9;
  transition:border-color var(--ease),background var(--ease);
}
.voices-list blockquote:hover{border-left-color:var(--mint);background:rgba(255,255,255,0.06);}
.voices-list cite{display:block;margin-top:12px;font-size:13px;color:var(--dim);font-style:normal;}
@media (max-width:1023px){
  .voices{grid-template-columns:1fr;gap:28px;padding:28px;}
}

/* ---------- FAQ ---------- */
.faq{max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);position:relative;transition:padding-left var(--ease);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(34,211,238,0.65);
  opacity:0;transition:opacity var(--ease);
}
.faq-item[open]::before{opacity:1;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:18px;padding:22px 0;font-size:16.5px;font-weight:600;color:var(--text);
  transition:color var(--ease),padding-left var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;
  color:var(--dim);transition:transform 240ms ease,color var(--ease);flex:0 0 auto;
}
.faq-item[open] summary{padding-left:18px;color:#CFF3FB;}
.faq-item[open] summary::after{transform:rotate(180deg);color:var(--primary);}
.faq-item summary:hover{color:var(--primary);}
.faq-item summary:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.faq-body{padding:0 0 24px 18px;}
.faq-body p{font-size:15px;line-height:1.8;color:var(--muted);}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-top:1px solid rgba(34,211,238,0.16);
  background:linear-gradient(120deg,rgba(34,211,238,0.10),rgba(124,107,255,0.12));
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(700px 380px at 88% 20%, rgba(91,240,192,0.10), transparent 70%);
}
.cta-inner{
  position:relative;z-index:2;padding:76px 0;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(23px,2.8vw,34px);line-height:1.3;max-width:20em;}
.cta-inner p{margin-top:14px;font-size:15.5px;color:#B8C6E0;max-width:38em;line-height:1.85;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
@media (max-width:767px){
  .cta-inner{padding:56px 0;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#04070F;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,transparent,rgba(34,211,238,0.28),rgba(124,107,255,0.24),transparent) 1;
  padding-top:70px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px;}
.footer-brand p{margin-top:20px;font-size:14.5px;color:var(--muted);line-height:1.85;max-width:32em;}
.footer-col h3{
  font-size:14px;font-weight:600;color:var(--text);letter-spacing:.04em;margin-bottom:20px;
}
.footer-col li + li{margin-top:12px;}
.footer-col a{
  font-size:14.5px;color:var(--muted);transition:color var(--ease),padding-left var(--ease);
  display:inline-block;
}
.footer-col a:hover{color:var(--primary);padding-left:4px;}
.footer-bottom{
  margin-top:56px;padding:22px 0 28px;border-top:1px solid rgba(255,255,255,0.07);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--dim);line-height:1.7;}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:600px){
  .site-footer{padding-top:52px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{margin-top:38px;flex-direction:column;align-items:flex-start;}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:0.001ms !important;transition-duration:0.001ms !important;}
}

/* roulang page: article */
:root{
  --bg:#060A17;
  --bg-2:#0B1226;
  --bg-deep:#04070F;
  --surface:rgba(255,255,255,.04);
  --surface-2:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(34,211,238,.5);
  --cyan:#22D3EE;
  --cyan-deep:#0EA5C9;
  --violet:#7C6BFF;
  --mint:#5BF0C0;
  --text:#E8EEF9;
  --muted:#9AA9C4;
  --weak:#61708C;
  --danger:#FF6B81;
  --r-s:10px;
  --r:18px;
  --r-lg:24px;
  --shadow:0 8px 30px rgba(0,0,0,.35);
  --shadow-lg:0 18px 46px rgba(0,0,0,.45);
  --glow:0 8px 28px rgba(34,211,238,.28);
  --container:1200px;
  --ease:200ms ease;
  --font:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Space Grotesk","Outfit",Inter,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 520px at 8% -6%,rgba(34,211,238,.11),transparent 62%),
    radial-gradient(880px 560px at 100% 100%,rgba(124,107,255,.11),transparent 60%);
  background-repeat:no-repeat;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease),opacity var(--ease),transform var(--ease)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding-left:1.15em}
::selection{background:rgba(34,211,238,.28)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 40px}
.section{padding:96px 0;position:relative}
.section + .section{border-top:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:40px}
.section-head .eyebrow{display:inline-block;font-size:13px;letter-spacing:.14em;color:var(--cyan);text-transform:uppercase;margin-bottom:14px}
.section-head h2{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.25;letter-spacing:-.01em}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}
.glass{background:var(--surface);border:1px solid var(--line);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}

/* ---------- 顶部导航 ---------- */
.site-header{position:fixed;inset:0 0 auto 0;z-index:60;background:rgba(6,10,23,.72);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:background var(--ease),border-color var(--ease),box-shadow var(--ease)}
.site-header.is-scrolled{background:rgba(4,7,15,.92);border-bottom-color:var(--line);box-shadow:0 10px 30px rgba(0,0,0,.4)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.01em}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;color:var(--cyan);background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.28);box-shadow:0 0 18px rgba(34,211,238,.18)}
.logo-text{font-size:17px;color:var(--text)}
.logo-text em{font-style:normal;color:var(--cyan);margin:0 2px;font-family:var(--font-num)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;padding:8px 0;font-size:15px;color:var(--muted)}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),var(--violet));opacity:0;transform:scaleX(.4);transition:opacity var(--ease),transform var(--ease);box-shadow:0 0 12px rgba(34,211,238,.7)}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after,.nav-link.is-active::after{opacity:1;transform:scaleX(1)}
.nav-link.is-active{color:var(--text)}
.nav-cta{margin-left:6px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--surface);flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mask{position:fixed;inset:0;background:rgba(4,7,15,.66);backdrop-filter:blur(3px);opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:55}
.nav-mask.is-open{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:999px;font-size:15.5px;font-weight:600;line-height:1;white-space:nowrap;border:1px solid transparent;transition:transform var(--ease),box-shadow var(--ease),filter var(--ease),background-color var(--ease),border-color var(--ease),color var(--ease)}
.btn-glow{background:linear-gradient(100deg,#22D3EE,#7C6BFF);color:#04121A;box-shadow:var(--glow),0 0 0 1px rgba(34,211,238,.45)}
.btn-glow:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 12px 38px rgba(34,211,238,.42),0 0 0 1px rgba(34,211,238,.6)}
.btn-glow:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--cyan);border-color:rgba(34,211,238,.55)}
.btn-ghost:hover{background:rgba(34,211,238,.1);border-color:rgba(34,211,238,.85);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:10px 20px;font-size:14.5px}
.btn-lg{padding:16px 32px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.4;box-shadow:none;pointer-events:none}
.link-cta{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--cyan);font-size:15.5px}
.link-cta .arrow{transition:transform var(--ease)}
.link-cta:hover .arrow{transform:translateX(4px)}

/* ---------- 面包屑与内页横幅 ---------- */
.page-hero{position:relative;margin-top:72px;padding:78px 0 54px;background-image:linear-gradient(100deg,rgba(4,7,15,.95),rgba(6,10,23,.72) 55%,rgba(11,18,38,.62)),url("/assets/images/backpic/back-3.webp");background-size:cover;background-position:center;border-bottom:1px solid var(--line)}
.page-hero::after{content:"";position:absolute;inset:auto 0 0 0;height:120px;background:linear-gradient(180deg,transparent,rgba(6,10,23,.96))}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .sep{color:var(--weak)}
.breadcrumb .current{color:var(--text)}
.page-hero-note{margin-top:18px;max-width:640px;color:var(--muted);font-size:15px}

/* ---------- 文章布局 ---------- */
.article-section{padding:64px 0 88px}
.article-layout{display:grid;grid-template-columns:minmax(0,760px) 260px;gap:48px;max-width:1080px;margin:0 auto;justify-content:center;align-items:start}
.article-wrap{min-width:0}
.article-head{padding:30px 32px;border-radius:var(--r-lg);box-shadow:var(--shadow)}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;font-size:13px;color:var(--muted);border:1px solid var(--line);background:var(--surface)}
.badge-cyan{color:var(--cyan);border-color:rgba(34,211,238,.4);background:rgba(34,211,238,.1)}
.badge-mint{color:var(--mint);border-color:rgba(91,240,192,.35);background:rgba(91,240,192,.1)}
.article-head h1{font-size:clamp(26px,3.2vw,40px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:18px;font-size:13.5px;color:var(--weak)}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--weak);opacity:.7}
.article-body{margin-top:36px;font-size:16.5px;line-height:1.95;color:var(--text)}
.article-body h2{font-size:clamp(21px,2.2vw,27px);font-weight:700;line-height:1.35;margin:48px 0 16px;padding-left:14px;border-left:3px solid var(--cyan)}
.article-body h3{font-size:20px;font-weight:600;line-height:1.4;margin:32px 0 12px;color:#F3F7FF}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px;color:var(--muted)}
.article-body p{margin:0 0 1.15em}
.article-body ul,.article-body ol{margin:0 0 1.15em;padding-left:1.2em;color:var(--muted)}
.article-body li{margin-bottom:.5em}
.article-body li::marker{color:var(--cyan)}
.article-body a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{filter:brightness(1.15)}
.article-body strong{color:#FFFFFF;font-weight:600}
.article-body blockquote{margin:28px 0;padding:18px 22px;background:rgba(34,211,238,.07);border-left:2px solid var(--cyan);border-radius:0 14px 14px 0;color:var(--muted);font-size:15.5px}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;margin:22px 0 8px;box-shadow:var(--shadow)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13.5px;color:var(--weak);text-align:center;margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;display:block;overflow-x:auto;white-space:nowrap}
.article-body th,.article-body td{padding:12px 16px;border:1px solid var(--line);text-align:left}
.article-body th{background:var(--surface-2);color:var(--cyan);font-weight:600}
.article-body td{color:var(--muted)}
.article-body hr{border:0;height:1px;background:linear-gradient(90deg,transparent,rgba(34,211,238,.5),transparent);margin:40px 0}
.article-body code{padding:2px 7px;border-radius:6px;background:rgba(255,255,255,.07);font-size:14px;color:var(--mint);font-family:var(--font-num)}

.empty-state{margin-top:36px;padding:56px 32px;text-align:center;border-radius:var(--r-lg);border:1px dashed var(--line);background:var(--surface);color:var(--muted)}
.empty-state .empty-icon{width:56px;height:56px;margin:0 auto 18px;border-radius:16px;display:flex;align-items:center;justify-content:center;color:var(--cyan);background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.24)}
.empty-state h2{font-size:20px;color:var(--text);margin-bottom:10px;font-weight:600}
.empty-state p{font-size:14.5px;color:var(--weak);margin-bottom:20px}

.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:44px;padding-top:24px;border-top:1px solid var(--line)}
.article-tags .tag-label{font-size:13.5px;color:var(--weak);margin-right:4px}
.tag{display:inline-flex;padding:7px 14px;border-radius:999px;font-size:13.5px;color:var(--muted);background:var(--surface);border:1px solid var(--line)}
.tag:hover{color:var(--cyan);border-color:var(--line-strong);background:rgba(34,211,238,.08)}
.article-return{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:24px;padding:20px 24px;border-radius:var(--r);background:var(--surface);border:1px solid var(--line)}
.article-return p{font-size:14.5px;color:var(--muted)}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;display:grid;gap:20px}
.side-card{padding:22px;border-radius:var(--r);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);transition:border-color var(--ease),transform var(--ease)}
.side-card:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.side-card h3{font-size:15.5px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:8px;height:8px;border-radius:3px;background:linear-gradient(120deg,var(--cyan),var(--violet))}
.side-list{display:grid;gap:10px}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 14px;border-radius:var(--r-s);font-size:14.5px;color:var(--muted);background:rgba(255,255,255,.03);border:1px solid var(--line)}
.side-list a:hover{color:var(--text);border-color:var(--line-strong);background:rgba(34,211,238,.08)}
.side-list a span{color:var(--cyan);font-size:13px}
.side-card p{font-size:14.5px;color:var(--muted)}
.side-stat{display:flex;align-items:baseline;gap:8px;margin-bottom:12px}
.side-stat b{font-family:var(--font-num);font-size:30px;color:var(--mint);font-weight:700;line-height:1}
.side-stat em{font-style:normal;font-size:13.5px;color:var(--weak)}

/* ---------- 相关推荐 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{position:relative;border-radius:var(--r);background:var(--surface);border:1px solid var(--line);overflow:hidden;box-shadow:var(--shadow);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-lg)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,23,.15),rgba(6,10,23,.78))}
.card:hover .card-media img{transform:scale(1.04)}
.card-media .badge{position:absolute;top:12px;left:12px;z-index:2;background:rgba(6,10,23,.72)}
.card-body{padding:22px}
.card-body h3{font-size:18px;font-weight:600;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14.5px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:18px;font-size:13.5px;color:var(--weak)}
.card-foot .read{color:var(--cyan);font-weight:600;display:inline-flex;align-items:center;gap:5px}
.card:hover .card-foot .read .arrow{transform:translateX(4px)}
.card-foot .arrow{transition:transform var(--ease)}

/* ---------- 底部 CTA 带 ---------- */
.cta-band{padding:0 0 96px}
.cta-inner{position:relative;overflow:hidden;border-radius:var(--r-lg);padding:56px 48px;background-image:linear-gradient(100deg,rgba(4,7,15,.94),rgba(11,18,38,.78)),url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center;border:1px solid var(--line);box-shadow:var(--shadow-lg)}
.cta-inner::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 260px at 88% 12%,rgba(124,107,255,.22),transparent 70%)}
.cta-inner .cta-text{position:relative;z-index:2;max-width:660px}
.cta-inner h2{font-size:clamp(24px,2.8vw,34px);font-weight:700;line-height:1.25}
.cta-inner p{margin-top:14px;color:var(--muted);font-size:16px}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-deep);position:relative;padding:72px 0 32px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(34,211,238,.6),rgba(124,107,255,.5),transparent)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{margin-top:18px;font-size:14.5px;color:var(--muted);line-height:1.85;max-width:340px}
.footer-col h3{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text)}
.footer-col ul{list-style:none;padding:0;display:grid;gap:11px}
.footer-col a{font-size:14.5px;color:var(--muted)}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-top:56px;padding-top:22px;border-top:1px solid var(--line);font-size:13.5px;color:var(--weak)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1160px}
}
@media (max-width:1023px){
  .container{padding:0 28px}
  .section{padding:72px 0}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;max-width:820px}
  .article-side{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .page-hero{padding:64px 0 46px}
}
@media (max-width:992px){
  .nav-toggle{display:flex}
  .nav-links{position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;flex-direction:column;align-items:stretch;gap:8px;padding:88px 24px 32px;background:rgba(8,12,26,.96);backdrop-filter:blur(16px);border-left:1px solid var(--line);transform:translateX(102%);transition:transform 240ms ease;z-index:58;overflow-y:auto}
  .nav-links.is-open{transform:translateX(0)}
  .nav-link{padding:14px 4px;font-size:16px;border-bottom:1px solid var(--line)}
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--cyan)}
  .nav-cta{margin:20px 0 0;width:100%}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .nav{height:64px}
  .page-hero{margin-top:64px;padding:48px 0 36px}
  .article-section{padding:48px 0 64px}
  .article-head{padding:22px 20px}
  .article-side{grid-template-columns:minmax(0,1fr)}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .cta-inner{padding:36px 24px}
  .article-body h2{margin-top:36px}
  .article-return{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .article-meta{gap:8px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .btn{width:100%}
  .btn-sm{width:auto}
  .logo-text{font-size:15.5px}
}

/* roulang page: category1 */
:root{
  --bg:#060A17;
  --bg-2:#0B1226;
  --bg-3:#04070F;
  --card:rgba(255,255,255,.04);
  --card-2:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.16);
  --primary:#22D3EE;
  --primary-deep:#0EA5C9;
  --secondary:#7C6BFF;
  --mint:#5BF0C0;
  --text:#E8EEF9;
  --muted:#9AA9C4;
  --dim:#61708C;
  --error:#FF6B81;
  --r-sm:10px;
  --r-card:18px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow:0 8px 30px rgba(0,0,0,.35);
  --shadow-lg:0 18px 48px rgba(0,0,0,.5);
  --t:200ms ease;
  --font:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Space Grotesk","Outfit",Inter,system-ui,sans-serif;
  --container:1200px;
  --sect:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(circle at 12% 0%,rgba(34,211,238,.11),transparent 42%),
    radial-gradient(circle at 88% 14%,rgba(124,107,255,.10),transparent 46%);
  background-repeat:no-repeat;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--primary);text-decoration:none;transition:color var(--t),opacity var(--t)}
a:hover{color:#6FE6F7}
p{margin:0 0 1.15em}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.25;color:var(--text)}
h1{font-size:clamp(30px,4.6vw,56px);line-height:1.15}
h2{font-size:clamp(24px,3vw,36px)}
h3{font-size:20px;font-weight:600}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 40px}
@media (min-width:1280px){.container{max-width:1280px}}
.section{padding:var(--sect) 0;position:relative}
.section + .section{border-top:1px solid transparent;border-image:linear-gradient(90deg,transparent,rgba(34,211,238,.28),rgba(124,107,255,.22),transparent) 1}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--primary);margin-bottom:14px}
.section-head .eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--primary),var(--secondary))}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--muted);margin:0}
.muted{color:var(--muted)}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-pill);
  padding:14px 28px;font-size:15.5px;font-weight:600;line-height:1;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t),opacity var(--t);
  white-space:nowrap;
}
.btn-glow{
  background:linear-gradient(100deg,#22D3EE,#7C6BFF);
  color:#04121A;
  box-shadow:0 8px 28px rgba(34,211,238,.28),0 0 0 1px rgba(34,211,238,.45);
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 14px 40px rgba(34,211,238,.42),0 0 0 1px rgba(34,211,238,.62);color:#04121A}
.btn-glow:active{transform:translateY(0);box-shadow:0 6px 18px rgba(34,211,238,.3),0 0 0 1px rgba(34,211,238,.5)}
.btn-ghost{
  background:transparent;color:var(--primary);border-color:rgba(34,211,238,.5);
}
.btn-ghost:hover{background:rgba(34,211,238,.1);border-color:rgba(34,211,238,.85);transform:translateY(-2px);color:#7DEBFA}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;box-shadow:none;pointer-events:none}
.link-cta{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--primary)}
.link-cta span{transition:transform var(--t)}
.link-cta:hover span{transform:translateX(4px)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,10,23,.72);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background var(--t),border-color var(--t),box-shadow var(--t);
}
.site-header.is-scrolled{background:rgba(4,7,15,.92);border-bottom-color:var(--line);box-shadow:0 10px 30px rgba(0,0,0,.4)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text)}
.logo:hover{color:var(--text)}
.logo-mark{display:inline-flex;color:var(--primary);filter:drop-shadow(0 0 8px rgba(34,211,238,.5))}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.01em}
.logo-text em{font-style:normal;color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;font-size:15px;color:var(--muted);padding:6px 0;
  transition:color var(--t);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
  box-shadow:0 0 12px rgba(34,211,238,.75);
  transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--text)}
.nav-cta{box-shadow:0 6px 22px rgba(34,211,238,.3),0 0 0 1px rgba(34,211,238,.45)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:var(--card);border:1px solid var(--line);
  padding:0;position:relative;
}
.nav-toggle span{
  position:absolute;left:11px;right:11px;height:2px;border-radius:2px;background:var(--text);
  transition:transform var(--t),opacity var(--t);
}
.nav-toggle span:nth-child(1){top:14px}
.nav-toggle span:nth-child(2){top:20px}
.nav-toggle span:nth-child(3){top:26px}
.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)}

/* ===== Breadcrumb ===== */
.breadcrumb{padding-top:28px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--dim)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--dim)}
.breadcrumb .current{color:var(--text)}

/* ===== Category hero ===== */
.cat-hero{padding:36px 0 72px}
.cat-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.cat-hero .badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.cat-hero h1{margin-bottom:20px}
.cat-hero h1 em{font-style:normal;background:linear-gradient(100deg,#22D3EE,#7C6BFF);-webkit-background-clip:text;background-clip:text;color:transparent}
.cat-hero p.lead{font-size:17.5px;color:var(--muted);max-width:600px}
.cat-hero .btn-row{margin-top:26px}
.kv-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-lg);
  aspect-ratio:16/11;background:var(--bg-2);
}
.kv-media img{width:100%;height:100%;object-fit:cover;opacity:.72}
.kv-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(6,10,23,.15),rgba(6,10,23,.9));
}
.kv-media .glass-card{
  position:absolute;left:20px;right:20px;bottom:20px;z-index:2;
  background:rgba(11,18,38,.72);backdrop-filter:blur(14px);
  border:1px solid rgba(34,211,238,.28);border-radius:var(--r-card);
  padding:18px 20px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px;
}
.kv-media .glass-card b{display:block;font-family:var(--font-num);font-size:22px;color:var(--mint);line-height:1.2}
.kv-media .glass-card span{font-size:12.5px;color:var(--muted)}

/* ===== Badges & tags ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:var(--primary);
  background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.3);
}
.badge-violet{color:#B4A9FF;background:rgba(124,107,255,.12);border-color:rgba(124,107,255,.34)}
.badge-mint{color:var(--mint);background:rgba(91,240,192,.1);border-color:rgba(91,240,192,.32)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  padding:7px 14px;border-radius:var(--r-pill);font-size:13.5px;color:var(--muted);
  border:1px solid var(--line);background:var(--card);
}

/* ===== Cards ===== */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t),background var(--t);
}
.card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.5);box-shadow:var(--shadow-lg);background:var(--card-2)}
.card h3{margin-bottom:10px}
.card p{color:var(--muted);font-size:15.5px;margin-bottom:0}

/* ===== Split layout ===== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-lg);position:relative}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.split-media .cap{
  position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:13px;color:var(--muted);
  background:linear-gradient(180deg,transparent,rgba(4,7,15,.92));
}
.feature-list{margin-top:22px;display:grid;gap:16px}
.feature-list li{display:flex;gap:14px;align-items:flex-start}
.feature-list .dot{
  flex:0 0 30px;height:30px;border-radius:10px;display:grid;place-items:center;
  background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.3);
  color:var(--primary);font-family:var(--font-num);font-size:13px;font-weight:700;
}
.feature-list strong{display:block;font-size:15.5px;margin-bottom:2px}
.feature-list span{color:var(--muted);font-size:14.5px;line-height:1.7}

/* ===== Vertical steps ===== */
.steps{position:relative;margin-top:8px;padding-left:6px}
.steps::before{
  content:"";position:absolute;left:19px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,rgba(34,211,238,.75),rgba(124,107,255,.5),rgba(97,112,140,.15));
}
.step{position:relative;padding:0 0 30px 62px}
.step:last-child{padding-bottom:0}
.step .node{
  position:absolute;left:0;top:2px;width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;font-family:var(--font-num);font-size:15px;font-weight:700;
  background:rgba(11,18,38,.95);border:1px solid rgba(34,211,238,.55);color:var(--primary);
  box-shadow:0 0 0 6px rgba(34,211,238,.06);
}
.step.is-now .node{
  border-color:var(--mint);color:var(--mint);
  box-shadow:0 0 0 6px rgba(91,240,192,.1),0 0 22px rgba(91,240,192,.35);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 6px rgba(91,240,192,.1),0 0 22px rgba(91,240,192,.3)}
  50%{box-shadow:0 0 0 12px rgba(91,240,192,.02),0 0 30px rgba(91,240,192,.5)}
}
.step h3{margin-bottom:8px;font-size:19px}
.step p{color:var(--muted);font-size:15px;margin:0}
.step .meta{display:inline-block;margin-top:10px;font-size:13px;color:var(--dim)}

/* ===== Check list ===== */
.panel{
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;
}
.check-list{display:grid;gap:14px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--muted)}
.check-list li::before{
  content:"";flex:0 0 18px;height:18px;margin-top:5px;border-radius:6px;
  background:linear-gradient(100deg,rgba(34,211,238,.9),rgba(91,240,192,.9));
  clip-path:polygon(14% 52%,0 66%,38% 100%,100% 22%,86% 8%,36% 72%);
}
.notice{
  display:flex;gap:14px;align-items:flex-start;
  border:1px solid rgba(255,107,129,.32);background:rgba(255,107,129,.07);
  border-radius:var(--r-card);padding:18px 20px;font-size:14.5px;color:#FFC2CB;
}
.notice b{color:#FFD6DC}

/* ===== FAQ ===== */
.faq{max-width:900px}
.faq details{border-top:1px solid var(--line);padding:6px 0}
.faq details:last-of-type{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 4px;font-size:16.5px;font-weight:600;cursor:pointer;position:relative;
  transition:color var(--t);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{
  content:"";position:absolute;left:-14px;top:14px;bottom:14px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--secondary));
  opacity:0;transition:opacity var(--t);
}
.faq summary:hover{color:#B9E9F6}
.faq summary .arrow{
  flex:0 0 22px;height:22px;display:grid;place-items:center;color:var(--primary);
  transition:transform var(--t);
}
.faq details[open] summary::before{opacity:1}
.faq details[open] summary{color:var(--text)}
.faq details[open] summary .arrow{transform:rotate(180deg)}
.faq .answer{padding:0 4px 22px;font-size:15px;line-height:1.8;color:var(--muted);max-width:780px}

/* ===== Inline CTA ===== */
.inline-cta{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  border:1px solid rgba(34,211,238,.28);border-radius:var(--r-lg);
  background:linear-gradient(100deg,rgba(34,211,238,.1),rgba(124,107,255,.1));
  padding:28px 32px;
}
.inline-cta h3{margin-bottom:6px;font-size:22px}
.inline-cta p{margin:0;color:var(--muted);font-size:15px}

/* ===== Related ===== */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow);color:var(--text);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.5);box-shadow:var(--shadow-lg);color:var(--text)}
.rel-card .thumb{aspect-ratio:16/9;overflow:hidden;position:relative;background:var(--bg-2)}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 260ms ease;opacity:.85}
.rel-card:hover .thumb img{transform:scale(1.05)}
.rel-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,23,.1),rgba(6,10,23,.72))}
.rel-card .thumb .badge{position:absolute;left:14px;top:14px;z-index:2;backdrop-filter:blur(8px)}
.rel-card .body{padding:20px 22px 24px}
.rel-card h3{font-size:18px;margin-bottom:8px}
.rel-card p{color:var(--muted);font-size:14.5px;margin:0}
.rel-card .more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:600;color:var(--primary)}
.rel-card .more span{transition:transform var(--t)}
.rel-card:hover .more span{transform:translateX(4px)}

/* ===== Bottom CTA band ===== */
.cta-band{position:relative;padding:84px 0;overflow:hidden;border-top:1px solid var(--line)}
.cta-band .bg{position:absolute;inset:0;z-index:0}
.cta-band .bg img{width:100%;height:100%;object-fit:cover;opacity:.26}
.cta-band .bg::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(6,10,23,.95),rgba(6,10,23,.78))}
.cta-band .inner{position:relative;z-index:1;display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center}
.cta-band h2{margin-bottom:14px}
.cta-band p{color:var(--muted);margin:0;max-width:560px}

/* ===== Footer ===== */
.site-footer{background:var(--bg-3);border-top:1px solid transparent;border-image:linear-gradient(90deg,transparent,rgba(34,211,238,.4),rgba(124,107,255,.32),transparent) 1;padding:64px 0 28px;position:relative}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{color:var(--muted);font-size:14.5px;max-width:340px}
.footer-col h3{font-size:15px;margin-bottom:18px;color:var(--text)}
.footer-col ul{display:grid;gap:12px}
.footer-col a{color:var(--muted);font-size:14.5px}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13.5px;color:var(--dim);
}
.footer-bottom p{margin:0}

/* ===== Responsive ===== */
@media (max-width:1279px){
  .container{padding:0 32px}
}
@media (max-width:1023px){
  :root{--sect:72px}
  .container{padding:0 28px}
  body{font-size:16px}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px}
  .split{grid-template-columns:1fr;gap:32px}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band .inner{grid-template-columns:1fr;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .nav{height:64px}
  .nav-toggle{display:block}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(320px,84vw);
    flex-direction:column;align-items:flex-start;gap:6px;
    padding:88px 26px 40px;
    background:rgba(4,7,15,.96);backdrop-filter:blur(18px);
    border-left:1px solid var(--line);
    transform:translateX(100%);transition:transform 240ms ease;
    overflow-y:auto;z-index:90;
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-link{width:100%;padding:14px 0;font-size:16px;border-bottom:1px solid var(--line)}
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--primary)}
  .nav-cta{margin-top:20px;width:100%}
  .nav-mask{
    position:fixed;inset:0;background:rgba(3,6,13,.6);backdrop-filter:blur(2px);
    opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:85;
  }
  .nav-mask.is-open{opacity:1;visibility:visible}
}
@media (max-width:767px){
  :root{--sect:56px}
  .container{padding:0 20px}
  h1{font-size:clamp(28px,8vw,38px)}
  .kv-media{aspect-ratio:4/3}
  .kv-media .glass-card{grid-template-columns:1fr;gap:10px;left:14px;right:14px;bottom:14px;padding:14px 16px}
  .kv-media .glass-card .cell{display:flex;align-items:baseline;gap:10px}
  .rel-grid{grid-template-columns:1fr}
  .inline-cta{padding:22px}
  .panel{padding:22px}
  .step{padding-left:54px}
  .step .node{width:36px;height:36px}
  .steps::before{left:17px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:479px){
  .btn{width:100%;padding:14px 20px}
  .btn-row{gap:12px}
  .card{padding:16px}
  .cat-hero{padding:20px 0 48px}
}

/* roulang page: category3 */
:root{
  --bg:#060A17;
  --bg-2:#0B1226;
  --bg-3:#04070F;
  --card:rgba(255,255,255,.04);
  --card-strong:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.08);
  --line-soft:rgba(255,255,255,.06);
  --primary:#22D3EE;
  --primary-d:#0EA5C9;
  --violet:#7C6BFF;
  --mint:#5BF0C0;
  --text:#E8EEF9;
  --text-2:#9AA9C4;
  --text-3:#61708C;
  --error:#FF6B81;
  --radius-sm:10px;
  --radius:18px;
  --radius-lg:24px;
  --shadow:0 8px 30px rgba(0,0,0,.35);
  --shadow-lg:0 18px 48px rgba(0,0,0,.5);
  --ease:.22s ease;
  --font-cn:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Space Grotesk","Outfit",Inter,system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 520px at 6% -8%, rgba(34,211,238,.12), transparent 70%),
    radial-gradient(780px 560px at 104% 108%, rgba(124,107,255,.12), transparent 72%);
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;}
a:hover{color:#5BE7FA;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(34,211,238,.3);color:#fff;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 40px;
  position:relative;
  z-index:1;
}
.skip-link{
  position:absolute;
  left:-9999px;
  top:0;
  background:var(--primary);
  color:#04121A;
  padding:10px 18px;
  border-radius:0 0 12px 0;
  z-index:200;
}
.skip-link:focus{left:0;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(6,10,23,.72);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),box-shadow var(--ease),backdrop-filter var(--ease);
}
.site-header.is-scrolled{
  background:rgba(4,7,15,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  text-decoration:none;
  flex-shrink:0;
}
.logo:hover{color:var(--text);}
.logo-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  border-radius:12px;
  color:var(--primary);
  background:linear-gradient(150deg,rgba(34,211,238,.2),rgba(124,107,255,.18));
  border:1px solid rgba(34,211,238,.35);
  box-shadow:0 0 18px rgba(34,211,238,.22);
}
.logo-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:.01em;
  white-space:nowrap;
}
.logo-text em{
  font-style:normal;
  color:var(--primary);
  font-family:var(--font-num);
  letter-spacing:.02em;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  text-decoration:none;
  padding:6px 0;
  white-space:nowrap;
  transition:color var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:var(--text);}
.nav-link.is-active{color:var(--text);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-8px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--violet));
  box-shadow:0 0 12px rgba(34,211,238,.75);
}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:42px;
  height:42px;
  padding:0 10px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:12px;
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  height:2px;
  width:100%;
  border-radius:2px;
  background:var(--text-2);
  transition:transform var(--ease),opacity var(--ease),background var(--ease);
}
.nav-toggle.is-open span{background:var(--primary);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-mask{
  position:fixed;
  inset:0;
  background:rgba(2,5,12,.66);
  backdrop-filter:blur(2px);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);
  z-index:70;
}
.nav-mask.is-open{opacity:1;visibility:visible;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-family:inherit;
  font-size:15px;
  font-weight:600;
  line-height:1;
  padding:14px 26px;
  border-radius:999px;
  border:1px solid transparent;
  cursor:pointer;
  text-decoration:none;
  white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease),filter var(--ease);
}
.btn-glow{
  background:linear-gradient(100deg,#22D3EE,#7C6BFF);
  color:#04121A;
  box-shadow:0 8px 28px rgba(34,211,238,.28),0 0 0 1px rgba(34,211,238,.45);
}
.btn-glow:hover{
  color:#04121A;
  transform:translateY(-2px);
  filter:brightness(1.07);
  box-shadow:0 12px 40px rgba(34,211,238,.42),0 0 0 1px rgba(34,211,238,.7);
}
.btn-glow:active{transform:translateY(0);filter:brightness(.98);}
.btn-ghost{
  background:transparent;
  border-color:rgba(34,211,238,.5);
  color:var(--primary);
}
.btn-ghost:hover{
  background:rgba(34,211,238,.1);
  border-color:rgba(34,211,238,.9);
  color:#7FE7F7;
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0);}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.btn[disabled],.btn.is-disabled{opacity:.4;box-shadow:none;pointer-events:none;}
.btn-sm{padding:11px 18px;font-size:14px;}
.btn-lg{padding:16px 32px;font-size:16px;}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--primary);
  text-decoration:none;
}
.text-link::after{
  content:"→";
  display:inline-block;
  transition:transform var(--ease);
}
.text-link:hover::after{transform:translateX(4px);}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:600;
  line-height:1;
  padding:7px 12px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text-2);
}
.badge-mint{color:var(--mint);border-color:rgba(91,240,192,.34);background:rgba(91,240,192,.1);}
.badge-cyan{color:var(--primary);border-color:rgba(34,211,238,.34);background:rgba(34,211,238,.1);}
.badge-violet{color:#B5ABFF;border-color:rgba(124,107,255,.36);background:rgba(124,107,255,.12);}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;
  align-items:center;
  font-size:13px;
  color:var(--text-2);
  padding:8px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  transition:border-color var(--ease),color var(--ease);
}
.chip:hover{border-color:rgba(34,211,238,.5);color:var(--text);}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li + li::before{
  content:"/";
  color:rgba(255,255,255,.22);
}
.breadcrumb a{color:var(--text-2);text-decoration:none;transition:color var(--ease);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .is-current{color:var(--text);}

/* ============ 分类页头 ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(100deg,rgba(6,10,23,.95) 8%,rgba(6,10,23,.74) 52%,rgba(11,18,38,.88) 100%),
    linear-gradient(180deg,rgba(6,10,23,.25),rgba(6,10,23,.98)),
    url("/assets/images/backpic/back-3.webp");
  background-size:cover,cover,cover;
  background-position:center,center,center;
  opacity:.96;
}
.page-hero .container{position:relative;z-index:1;}
.hero-inner{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:44px;
  align-items:center;
  padding:46px 0 66px;
}
.hero-copy h1{
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.15;
  margin:20px 0 16px;
}
.hero-copy h1 .hl{
  background:linear-gradient(100deg,#22D3EE,#5BF0C0 60%,#7C6BFF);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  font-size:16.5px;
  color:var(--text-2);
  max-width:640px;
  line-height:1.9;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.hero-kv{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--card);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-lg);
  overflow:hidden;
}
.hero-kv img{
  width:100%;
  height:196px;
  object-fit:cover;
  background:var(--bg-2);
}
.hero-kv-body{padding:22px 24px 24px;}
.kv-rows{
  display:grid;
  gap:2px;
  margin-top:16px;
}
.kv-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:11px 0;
  border-bottom:1px solid var(--line-soft);
  font-size:14px;
  color:var(--text-2);
}
.kv-row:last-child{border-bottom:0;}
.kv-row strong{
  font-family:var(--font-num);
  font-size:19px;
  font-weight:700;
  color:var(--mint);
  letter-spacing:.01em;
}

/* ============ 通用板块 ============ */
main{position:relative;z-index:1;}
.section{
  position:relative;
  padding:96px 0;
}
.section::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(124,107,255,.32),rgba(34,211,238,.32),transparent);
}
.sec-head{
  max-width:740px;
  margin-bottom:38px;
}
.sec-head h2{
  font-size:clamp(24px,3vw,34px);
  margin-bottom:14px;
}
.sec-head p{
  color:var(--text-2);
  font-size:16px;
}
.sec-head--split{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  max-width:none;
}
.sec-head--split .sec-head-text{max-width:640px;}

/* ============ 图集网格 ============ */
.gallery{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  grid-auto-rows:170px;
  gap:16px;
}
.g-item{
  position:relative;
  margin:0;
  overflow:hidden;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--bg-2);
  box-shadow:var(--shadow);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.g-item--lg{grid-column:span 2;grid-row:span 2;border-radius:var(--radius-lg);}
.g-item--md{grid-column:span 2;}
.g-item img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
  background:linear-gradient(140deg,#0B1226,#131B33);
}
.g-item::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,10,23,.05) 20%,rgba(6,10,23,.86) 100%);
}
.g-item figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  z-index:2;
  padding:22px 24px;
}
.g-item--sm figcaption{padding:16px 18px;}
.g-item h3{
  font-size:21px;
  margin-bottom:8px;
}
.g-item--sm h3{font-size:16px;margin:0;}
.g-item p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.7;
}
.g-item:hover{
  transform:translateY(-4px);
  border-color:rgba(34,211,238,.5);
  box-shadow:0 18px 42px rgba(0,0,0,.5),0 0 0 1px rgba(34,211,238,.18);
}
.g-item:hover img{transform:scale(1.05);}

/* ============ 任务阶段 ============ */
.stage-grid{
  display:grid;
  grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);
  gap:28px;
  align-items:start;
}
.panel{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--card);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  padding:26px;
}
.panel + .panel{margin-top:18px;}
.panel h3{
  font-size:19px;
  margin-bottom:6px;
}
.panel-sub{
  font-size:14px;
  color:var(--text-3);
  margin-bottom:18px;
}
.stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
  margin-top:16px;
}
.stat{
  border-radius:14px;
  border:1px solid var(--line-soft);
  background:rgba(255,255,255,.03);
  padding:14px 14px 16px;
}
.stat strong{
  display:block;
  font-family:var(--font-num);
  font-size:26px;
  font-weight:700;
  color:var(--mint);
  letter-spacing:.01em;
  line-height:1.2;
}
.stat span{
  display:block;
  font-size:13px;
  color:var(--text-3);
  margin-top:4px;
}
.rank-list{display:grid;gap:14px;}
.rank-card{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(255,255,255,.035);
  padding:20px;
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.rank-card:hover{
  transform:translateY(-4px);
  border-color:rgba(34,211,238,.5);
  box-shadow:0 16px 38px rgba(0,0,0,.45);
}
.rank-top{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
}
.rank-top h4{
  font-size:17px;
  font-weight:600;
}
.rank-top b{
  font-family:var(--font-num);
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  letter-spacing:.02em;
}
.rank-card p{
  font-size:14px;
  color:var(--text-2);
  margin-top:8px;
}
.bar{
  height:6px;
  border-radius:999px;
  background:rgba(255,255,255,.08);
  margin-top:14px;
  overflow:hidden;
}
.bar i{
  display:block;
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg,#22D3EE,#5BF0C0);
}
.bar i.is-idle{background:linear-gradient(90deg,#7C6BFF,#22D3EE);}
.bar-meta{
  display:flex;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-3);
  margin-top:8px;
}
.table-wrap{
  overflow-x:auto;
  border-radius:var(--radius);
  border:1px solid var(--line-soft);
}
table{
  width:100%;
  min-width:560px;
  border-collapse:collapse;
  font-size:14.5px;
}
thead th{
  text-align:left;
  font-size:13px;
  font-weight:600;
  color:var(--text-3);
  letter-spacing:.02em;
  padding:14px 18px;
  background:rgba(255,255,255,.03);
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
tbody td{
  padding:15px 18px;
  color:var(--text-2);
  border-bottom:1px solid var(--line-soft);
  vertical-align:top;
}
tbody tr:last-child td{border-bottom:0;}
tbody tr{transition:background var(--ease);}
tbody tr:hover{background:rgba(34,211,238,.05);}
tbody td:first-child{color:var(--text);font-weight:600;}

/* ============ FAQ ============ */
.faq-list{
  border-top:1px solid var(--line);
}
.faq-item{
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.faq-item[open]{
  box-shadow:inset 2px 0 0 var(--primary);
}
.faq-item summary{
  position:relative;
  list-style:none;
  cursor:pointer;
  padding:28px 52px 28px 22px;
  font-size:21px;
  font-weight:600;
  line-height:1.45;
  color:var(--text);
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";
  position:absolute;
  right:22px;
  top:50%;
  width:10px;
  height:10px;
  margin-top:-7px;
  border-right:2px solid var(--text-3);
  border-bottom:2px solid var(--text-3);
  transform:rotate(45deg);
  transition:transform var(--ease),border-color var(--ease);
}
.faq-item summary:hover{color:var(--primary);}
.faq-item[open] summary{color:var(--primary);}
.faq-item[open] summary::after{
  transform:rotate(-135deg);
  border-color:var(--primary);
}
.faq-item summary:focus-visible{outline:2px solid var(--primary);outline-offset:-2px;}
.faq-answer{
  padding:0 52px 30px 22px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--text-2);
  max-width:900px;
}

/* ============ 页内 CTA ============ */
.cta-section{padding:96px 0;}
.cta-box{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid rgba(34,211,238,.26);
  padding:52px 48px;
  background:
    radial-gradient(110% 130% at 0% 0%,rgba(34,211,238,.18),transparent 55%),
    radial-gradient(120% 140% at 100% 100%,rgba(124,107,255,.22),transparent 58%),
    var(--bg-2);
  box-shadow:var(--shadow-lg);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
}
.cta-box h2{
  font-size:clamp(23px,2.8vw,32px);
  margin-bottom:12px;
}
.cta-box p{
  color:var(--text-2);
  font-size:16px;
  max-width:620px;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  flex-shrink:0;
}

/* ============ 相关分类 ============ */
.rel-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.rel-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--card);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  overflow:hidden;
  text-decoration:none;
  color:var(--text);
  box-shadow:var(--shadow);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.rel-card img{
  width:100%;
  height:158px;
  object-fit:cover;
  background:linear-gradient(140deg,#0B1226,#131B33);
  transition:transform .5s ease;
}
.rel-card-body{padding:22px 22px 24px;flex:1;display:flex;flex-direction:column;}
.rel-card h3{
  font-size:18px;
  margin-bottom:10px;
}
.rel-card p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.75;
  flex:1;
}
.rel-card .text-link{margin-top:16px;}
.rel-card:hover{
  transform:translateY(-4px);
  border-color:rgba(34,211,238,.5);
  color:var(--text);
  box-shadow:0 18px 42px rgba(0,0,0,.5);
}
.rel-card:hover img{transform:scale(1.05);}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:0;
  background:var(--bg-3);
  border-top:1px solid var(--line);
  padding:66px 0 0;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,211,238,.45),rgba(124,107,255,.45),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand p{
  color:var(--text-2);
  font-size:14px;
  line-height:1.85;
  margin-top:18px;
  max-width:360px;
}
.footer-col h3{
  font-size:15px;
  font-weight:600;
  margin-bottom:18px;
  color:var(--text);
}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{
  color:var(--text-2);
  font-size:14px;
  text-decoration:none;
  transition:color var(--ease),padding-left var(--ease);
}
.footer-col a:hover{color:var(--primary);padding-left:4px;}
.footer-bottom{
  border-top:1px solid var(--line-soft);
  padding:20px 0 30px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom p{margin:0;}
.footer-bottom .tech{font-family:var(--font-num);letter-spacing:.02em;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .gallery{grid-auto-rows:158px;}
}
@media (max-width:1023px){
  .container{padding:0 28px;}
  .section{padding:72px 0;}
  .cta-section{padding:72px 0;}
  .hero-inner{grid-template-columns:1fr;gap:32px;padding:38px 0 54px;}
  .hero-kv img{height:230px;}
  .gallery{grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:164px;}
  .g-item--lg{grid-column:span 2;grid-row:span 2;}
  .g-item--md{grid-column:span 2;}
  .stage-grid{grid-template-columns:1fr;}
  .rel-grid{grid-template-columns:1fr 1fr;}
  .cta-box{flex-direction:column;align-items:flex-start;gap:28px;padding:40px 34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .sec-head--split{flex-direction:column;align-items:flex-start;gap:18px;}
}
@media (max-width:991px){
  .nav{height:64px;}
  .nav-toggle{display:flex;}
  .nav-links{
    position:fixed;
    top:0;
    right:0;
    width:min(320px,86vw);
    height:100vh;
    padding:96px 26px 34px;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    background:rgba(8,13,28,.97);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-left:1px solid var(--line);
    box-shadow:-18px 0 48px rgba(0,0,0,.55);
    transform:translateX(105%);
    transition:transform .28s ease;
    z-index:80;
    overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-link{
    font-size:16px;
    padding:14px 4px;
    border-bottom:1px solid var(--line-soft);
  }
  .nav-link.is-active::after{left:4px;right:auto;width:26px;bottom:6px;}
  .nav-cta{margin-top:20px;width:100%;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  body{font-size:16px;}
  .section{padding:56px 0;}
  .cta-section{padding:56px 0;}
  .hero-copy h1{font-size:clamp(30px,7.4vw,38px);}
  .hero-kv img{height:186px;}
  .badge{font-size:12px;padding:6px 10px;}
  .gallery{grid-template-columns:1fr;grid-auto-rows:200px;gap:14px;}
  .g-item--lg,.g-item--md{grid-column:span 1;grid-row:span 1;}
  .g-item h3{font-size:19px;}
  .rel-grid{grid-template-columns:1fr;}
  .stats{grid-template-columns:1fr 1fr;}
  .stat:last-child{grid-column:span 2;}
  .faq-item summary{font-size:17.5px;padding:22px 44px 22px 18px;}
  .faq-answer{padding:0 44px 24px 18px;font-size:15px;}
  .panel{padding:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:479px){
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .panel{padding:18px 16px;}
  .stat strong{font-size:22px;}
  .logo-text{font-size:15px;}
  .kv-row strong{font-size:17px;}
}

/* roulang page: category2 */
:root{
  --bg:#060A17;
  --bg-2:#0B1226;
  --bg-deep:#04070F;
  --card:rgba(255,255,255,.04);
  --card-2:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.08);
  --line-glow:rgba(34,211,238,.5);
  --primary:#22D3EE;
  --primary-deep:#0EA5C9;
  --violet:#7C6BFF;
  --mint:#5BF0C0;
  --text:#E8EEF9;
  --muted:#9AA9C4;
  --dim:#61708C;
  --danger:#FF6B81;
  --radius-sm:10px;
  --radius:18px;
  --radius-lg:24px;
  --shadow:0 8px 30px rgba(0,0,0,.35);
  --shadow-lg:0 18px 46px rgba(0,0,0,.5);
  --container:1200px;
  --ease:200ms ease;
  --font-cn:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Space Grotesk","Outfit",Inter,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(820px 600px at 6% -6%, rgba(34,211,238,.11), transparent 62%),
    radial-gradient(900px 720px at 102% 104%, rgba(124,107,255,.11), transparent 60%);
  background-repeat:no-repeat;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 40px;
}
@media (min-width:1400px){.container{max-width:1280px}}

.section{padding:96px 0;position:relative}
.section--tight{padding:72px 0}
.section-line{border-top:1px solid var(--line)}

.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{
  font-size:clamp(24px,3vw,36px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.01em;
}
.section-head p{margin-top:14px;color:var(--muted);font-size:16.5px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  color:var(--primary);
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(34,211,238,.32);
  background:rgba(34,211,238,.07);
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px var(--mint)}

/* ============ 导航 ============ */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:90;
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,10,23,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo{display:inline-flex;align-items:center;gap:11px;font-weight:700;font-size:17px;letter-spacing:.01em;color:var(--text)}
.logo-mark{
  display:grid;place-items:center;width:40px;height:34px;flex:none;
  border-radius:11px;color:var(--primary);
  background:linear-gradient(135deg,rgba(34,211,238,.2),rgba(124,107,255,.2));
  border:1px solid rgba(34,211,238,.34);
  box-shadow:0 0 18px rgba(34,211,238,.16);
}
.logo-text em{font-style:normal;color:var(--primary);margin:0 2px;font-family:var(--font-num)}
.logo:hover .logo-text em{color:var(--mint)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;font-size:15px;color:var(--muted);padding:8px 0;
  transition:color var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link.is-active{color:var(--text)}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(34,211,238,.9);
}
.nav-cta{margin-left:6px}
.nav-toggle{
  display:none;width:44px;height:38px;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  border-radius:var(--radius-sm);border:1px solid var(--line);
  background:rgba(255,255,255,.04);cursor:pointer;transition:border-color var(--ease),background var(--ease);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle:hover{border-color:rgba(34,211,238,.5);background:rgba(34,211,238,.08)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mask{
  position:fixed;inset:0;z-index:85;background:rgba(4,7,15,.66);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.nav-mask.is-show{opacity:1;visibility:visible}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 28px;border-radius:999px;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease),filter var(--ease);
}
.btn-glow{
  background:linear-gradient(100deg,#22D3EE,#7C6BFF);
  color:#04121A;
  box-shadow:0 8px 28px rgba(34,211,238,.28),0 0 0 1px rgba(34,211,238,.45);
}
.btn-glow:hover{transform:translateY(-2px);filter:brightness(1.07);box-shadow:0 12px 38px rgba(34,211,238,.42),0 0 0 1px rgba(34,211,238,.62)}
.btn-glow:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:rgba(34,211,238,.55);color:var(--primary)}
.btn-ghost:hover{background:rgba(34,211,238,.1);border-color:rgba(34,211,238,.9);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-lg{padding:17px 34px;font-size:16px}
.btn[disabled]{opacity:.4;pointer-events:none;box-shadow:none}
.link-cta{
  display:inline-flex;align-items:center;gap:7px;
  color:var(--primary);font-weight:600;font-size:15.5px;
}
.link-cta .arrow{transition:transform var(--ease)}
.link-cta:hover{color:#67e8f9}
.link-cta:hover .arrow{transform:translateX(4px)}

/* ============ 面包屑 & 分类页首屏 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  font-size:13.5px;color:var(--dim);margin-bottom:22px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(255,255,255,.22)}
.breadcrumb .current{color:var(--text)}

.cat-hero{
  position:relative;overflow:hidden;
  padding:152px 0 88px;
  background-image:
    linear-gradient(115deg,rgba(6,10,23,.97) 0%,rgba(6,10,23,.85) 42%,rgba(6,10,23,.56) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:150px;
  background:linear-gradient(to bottom,rgba(6,10,23,0),var(--bg));
  pointer-events:none;
}
.cat-hero-grid{
  display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;position:relative;z-index:2;
}
.cat-hero h1{
  font-size:clamp(30px,4.6vw,54px);
  line-height:1.15;font-weight:700;letter-spacing:-.01em;
}
.cat-hero h1 .hl{
  background:linear-gradient(100deg,#22D3EE,#5BF0C0);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-hero .lead{
  margin-top:20px;font-size:17px;color:var(--muted);max-width:620px;
}
.cat-hero .actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  font-size:13px;color:var(--muted);
}
.tag-mint{color:var(--mint);border-color:rgba(91,240,192,.34);background:rgba(91,240,192,.08)}

.glass-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  padding:26px;
}
.hero-card h2{
  font-size:16px;font-weight:600;color:var(--text);letter-spacing:.02em;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.hero-card .live-dot{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:500;color:var(--mint);
}
.hero-card .live-dot i{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px var(--mint);animation:pulse 2s infinite}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
.stat{
  border-radius:14px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);padding:14px 12px;text-align:center;
}
.stat b{display:block;font-family:var(--font-num);font-size:25px;font-weight:700;color:var(--mint);line-height:1.2}
.stat span{display:block;margin-top:6px;font-size:12.5px;color:var(--dim)}
.hero-thumb{margin-top:20px;border-radius:14px;overflow:hidden;border:1px solid var(--line);position:relative}
.hero-thumb img{width:100%;height:150px;object-fit:cover;opacity:.9}
.hero-thumb figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:10px 14px;font-size:12.5px;color:var(--muted);
  background:linear-gradient(to top,rgba(6,10,23,.92),rgba(6,10,23,0));
}
.mini-list{margin-top:20px;display:grid;gap:10px}
.mini-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted)}
.mini-list li::before{
  content:"";width:6px;height:6px;border-radius:50%;flex:none;margin-top:9px;
  background:var(--primary);box-shadow:0 0 8px rgba(34,211,238,.8);
}

/* ============ 时间线 ============ */
.timeline{margin-top:12px}
.tl-item{display:grid;grid-template-columns:96px 26px 1fr;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-time{font-family:var(--font-num);font-size:14.5px;font-weight:700;color:var(--mint);padding-top:2px;letter-spacing:.02em}
.tl-rail{position:relative}
.tl-rail::before{
  content:"";position:absolute;left:50%;top:8px;bottom:-34px;width:2px;
  transform:translateX(-50%);
  background:linear-gradient(to bottom,rgba(34,211,238,.55),rgba(124,107,255,.3),rgba(255,255,255,.06));
}
.tl-item:last-child .tl-rail::before{display:none}
.tl-dot{
  position:absolute;left:50%;top:5px;width:13px;height:13px;border-radius:50%;
  transform:translateX(-50%);
  background:var(--mint);box-shadow:0 0 0 4px rgba(91,240,192,.14);
}
.tl-item.is-now .tl-dot{
  background:transparent;border:2px solid var(--primary);
  box-shadow:0 0 0 5px rgba(34,211,238,.16);
  animation:pulse 2.2s infinite;
}
.tl-item.is-next .tl-dot{background:transparent;border:2px solid var(--dim);box-shadow:none}
.tl-body{
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--card);padding:20px 24px;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.tl-body:hover{transform:translateY(-4px);border-color:var(--line-glow);box-shadow:var(--shadow-lg)}
.tl-body h3{font-size:19px;font-weight:600;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.tl-body p{margin-top:10px;color:var(--muted);font-size:15.5px}
.badge{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:8px;
  font-size:12px;font-weight:600;letter-spacing:.03em;
  border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--muted);
}
.badge-now{color:var(--primary);border-color:rgba(34,211,238,.4);background:rgba(34,211,238,.1)}
.badge-done{color:var(--mint);border-color:rgba(91,240,192,.34);background:rgba(91,240,192,.08)}

/* ============ 对比表 ============ */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--card);overflow:hidden;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.table-scroll::-webkit-scrollbar{height:8px}
.table-scroll::-webkit-scrollbar-thumb{background:rgba(34,211,238,.28);border-radius:8px}
table{width:100%;min-width:720px}
thead th{
  padding:16px 20px;text-align:left;
  font-size:13.5px;font-weight:600;letter-spacing:.04em;color:var(--text);
  background:rgba(34,211,238,.06);border-bottom:1px solid var(--line);
}
tbody td{
  padding:17px 20px;font-size:15px;color:var(--muted);
  border-bottom:1px solid var(--line);vertical-align:top;
}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover td{background:rgba(255,255,255,.03)}
tbody td:first-child{color:var(--text);font-weight:600;font-family:var(--font-num)}
.cell-mark{color:var(--mint);font-weight:600}
.table-note{margin-top:16px;font-size:13.5px;color:var(--dim)}

/* ============ 侧列卡片版式 ============ */
.split{display:grid;grid-template-columns:1.45fr .95fr;gap:36px;align-items:start}
.prose p{color:var(--muted);margin-bottom:18px}
.prose p strong{color:var(--text);font-weight:600}
.prose h3{font-size:21px;font-weight:600;margin:26px 0 12px}
.check-list{display:grid;gap:12px;margin-top:6px}
.check-list li{display:flex;gap:12px;font-size:15.5px;color:var(--muted)}
.check-list li::before{
  content:"";width:16px;height:16px;flex:none;margin-top:7px;border-radius:5px;
  background:rgba(91,240,192,.12);border:1px solid rgba(91,240,192,.45);
  box-shadow:inset 0 0 0 4px rgba(6,10,23,.9);
}
.figure{margin-top:26px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.figure img{width:100%;height:250px;object-fit:cover;transition:transform 420ms ease}
.figure:hover img{transform:scale(1.03)}
.figure figcaption{padding:12px 16px;font-size:13px;color:var(--dim);background:rgba(255,255,255,.03)}

.side-col{display:grid;gap:20px;position:sticky;top:104px}
.side-card{
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--card);padding:24px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.side-card:hover{transform:translateY(-4px);border-color:var(--line-glow);box-shadow:var(--shadow-lg)}
.side-card h3{font-size:18px;font-weight:600;display:flex;align-items:center;gap:10px}
.side-card h3 .dot{width:8px;height:8px;border-radius:50%;background:var(--violet);box-shadow:0 0 10px rgba(124,107,255,.9);flex:none}
.side-card p{margin-top:10px;font-size:14.5px;color:var(--muted)}
.side-card .side-num{font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--mint);display:block;margin-top:12px}

/* ============ FAQ ============ */
.faq{max-width:880px}
.faq-item{position:relative;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:flex-start;justify-content:space-between;gap:20px;
  padding:22px 0 22px 0;font-size:17px;font-weight:600;color:var(--text);
  transition:color var(--ease),padding-left var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";width:9px;height:9px;flex:none;margin-top:8px;
  border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:rotate(45deg);transition:transform var(--ease),border-color var(--ease);
}
.faq-item[open] summary{color:var(--primary)}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--primary)}
.faq-item[open]::before{
  content:"";position:absolute;left:-16px;top:18px;bottom:18px;width:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(34,211,238,.7);
}
.faq-body{padding:0 40px 24px 0;font-size:15px;line-height:1.85;color:var(--muted)}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:52px 48px;text-align:center;
  background-image:
    linear-gradient(120deg,rgba(34,211,238,.13),rgba(124,107,255,.15)),
    url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(24px,3vw,34px);font-weight:700;letter-spacing:-.01em}
.cta-band p{margin:16px auto 0;max-width:640px;color:var(--muted);font-size:16px}
.cta-band .actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px}

/* ============ 相关分类卡 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;height:100%;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--card);padding:24px;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--line-glow);box-shadow:var(--shadow-lg)}
.card .card-cover{
  border-radius:14px;overflow:hidden;margin-bottom:18px;position:relative;
}
.card .card-cover img{width:100%;height:158px;object-fit:cover;transition:transform 420ms ease}
.card:hover .card-cover img{transform:scale(1.04)}
.card .card-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(6,10,23,.55),rgba(6,10,23,0) 62%);
}
.card h3{font-size:19px;font-weight:600}
.card p{margin-top:10px;font-size:14.5px;color:var(--muted);flex:1}
.card .card-foot{margin-top:18px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.card .card-foot .meta{font-size:13px;color:var(--dim)}

/* ============ 页脚 ============ */
.site-footer{position:relative;background:var(--bg-deep);margin-top:0}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,211,238,.6),rgba(124,107,255,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px}
.footer-brand p{margin-top:16px;color:var(--muted);font-size:14.5px;max-width:340px}
.footer-col h3{font-size:15px;font-weight:600;color:var(--text);margin-bottom:18px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:11px}
.footer-col a{color:var(--muted);font-size:14.5px}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 34px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--dim);
}

@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(34,211,238,.45)}
  70%{box-shadow:0 0 0 10px rgba(34,211,238,0)}
  100%{box-shadow:0 0 0 0 rgba(34,211,238,0)}
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .cat-hero-grid{gap:40px}
}
@media (max-width:1023px){
  .container{padding:0 28px}
  .section{padding:72px 0}
  .cat-hero{padding:132px 0 72px}
  .cat-hero-grid{grid-template-columns:1fr;gap:34px}
  .split{grid-template-columns:1fr;gap:30px}
  .side-col{position:static;grid-template-columns:repeat(2,1fr);grid-auto-rows:1fr}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;padding:52px 0 36px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:992px){
  .nav{height:64px}
  .nav-toggle{display:flex}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(320px,85vw);z-index:95;
    flex-direction:column;align-items:stretch;gap:0;
    padding:88px 24px 36px;
    background:rgba(8,12,26,.97);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-left:1px solid var(--line);
    transform:translateX(105%);
    transition:transform 240ms ease;
    overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-link{width:100%;padding:15px 0;font-size:16px;border-bottom:1px solid var(--line)}
  .nav-link.is-active::after{display:none}
  .nav-link.is-active{color:var(--primary)}
  .nav-cta{margin:26px 0 0;width:100%}
  .tl-item{grid-template-columns:76px 22px 1fr}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .cat-hero{padding:118px 0 60px;min-height:560px}
  .cat-hero h1{font-size:clamp(30px,7vw,40px)}
  .stat-row{grid-template-columns:1fr 1fr}
  .stat:last-child{grid-column:1 / -1}
  .side-col{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .cta-band{padding:38px 22px}
  .cta-band .actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-body{padding-right:0}
  .tl-body{padding:18px}
  .figure img{height:200px}
}
@media (max-width:479px){
  .cat-hero{padding:110px 0 52px}
  .hero-card,.tl-body,.side-card,.card{padding:16px}
  .glass-card{padding:18px}
  .stat-row{grid-template-columns:1fr}
  .stat:last-child{grid-column:auto}
  .actions .btn{width:100%}
  .tl-item{grid-template-columns:62px 20px 1fr}
  .tl-body h3{font-size:17px}
}