/* roulang page: index */
:root{
  --bg-0:#05090F;
  --bg-1:#0A1322;
  --bg-2:#101B30;
  --glass:rgba(255,255,255,0.055);
  --line:rgba(122,176,255,0.16);
  --line-top:rgba(255,255,255,0.10);
  --brand:#14D8C8;
  --brand-2:#2B6EFF;
  --accent:#FF9A2E;
  --ok:#38D39F;
  --warn:#FFB020;
  --err:#FF5C6C;
  --text:#E8F1FF;
  --text-2:#9DB0C9;
  --text-3:#6B7C93;
  --r-card:16px;
  --r-big:20px;
  --r-btn:10px;
  --r-input:12px;
  --r-img:14px;
  --shadow:0 18px 48px rgba(2,8,24,0.55);
  --shadow-btn:0 8px 28px rgba(20,216,200,0.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-primary:#14D8C8;
  --bs-primary-rgb:20,216,200;
  --bs-body-bg:#05090F;
  --bs-body-color:#E8F1FF;
  --bs-border-color:rgba(122,176,255,0.16);
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --bs-border-radius:16px;
  --bs-link-color:#14D8C8;
  --bs-link-hover-color:#5CF0E2;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 88% -6%,rgba(20,216,200,0.10),transparent 62%),
    radial-gradient(760px 480px at 4% 12%,rgba(43,110,255,0.10),transparent 64%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--brand);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;position:relative;z-index:2;}
.section{padding:96px 0;position:relative;}
.section--tight{padding:72px 0;}
.section--alt{background:linear-gradient(180deg,rgba(10,19,34,0.72),rgba(5,9,15,0));}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--brand);
  border:1px solid var(--line);border-radius:999px;
  padding:6px 14px;background:var(--glass);margin-bottom:18px;
}
.eyebrow i{font-size:11px;}
h1{font-size:clamp(28px,4.2vw,46px);line-height:1.22;font-weight:700;letter-spacing:-.01em;}
h2{font-size:clamp(22px,3vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.01em;}
h3{font-size:20px;line-height:1.45;font-weight:600;}
p{color:var(--text-2);}
.lead{font-size:16px;line-height:1.8;color:var(--text-2);}
.mono{font-family:"DIN Alternate","JetBrains Mono",Consolas,monospace;font-variant-numeric:tabular-nums;}

/* ============ 顶部倒计时条 ============ */
.topbar{
  position:sticky;top:0;z-index:60;height:44px;
  background:linear-gradient(90deg,rgba(255,154,46,0.09),rgba(20,216,200,0.09));
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  border-image:linear-gradient(90deg,rgba(255,154,46,0.5),rgba(20,216,200,0.5)) 1;
}
.topbar-inner{height:44px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0;}
.topbar-label{font-size:13px;color:var(--text-2);white-space:nowrap;}
.countdown{display:flex;align-items:center;gap:4px;font-size:14px;color:var(--text);}
.cd-num{
  display:inline-block;min-width:30px;text-align:center;
  padding:2px 6px;border-radius:6px;background:rgba(255,255,255,0.06);
  border:1px solid var(--line);color:var(--brand);font-weight:600;
}
.cd-sep{color:var(--text-3);}
.topbar-btn{
  font-size:13px;padding:5px 14px;border-radius:999px;
  color:#04231F;background:var(--brand);font-weight:600;white-space:nowrap;
  box-shadow:0 6px 18px rgba(20,216,200,0.30);
  transition:transform .22s var(--ease),filter .22s var(--ease);
}
.topbar-btn:hover{color:#04231F;filter:brightness(1.08);transform:translateY(-1px);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:44px;z-index:50;
  background:rgba(6,11,20,0.72);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .26s var(--ease),border-color .26s var(--ease);
}
.site-header.is-scrolled{background:rgba(4,8,15,0.92);border-bottom-color:var(--line);}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(145deg,rgba(20,216,200,0.22),rgba(43,110,255,0.18));
  border:1px solid rgba(20,216,200,0.45);
  display:grid;place-items:center;
  box-shadow:0 0 22px rgba(20,216,200,0.28),inset 0 1px 0 rgba(255,255,255,0.14);
}
.brand-mark span{
  width:14px;height:14px;border-radius:4px;
  background:var(--brand);
  box-shadow:0 0 12px rgba(20,216,200,0.9);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--text);white-space:nowrap;}
.brand:hover .brand-text{color:var(--brand);}
.nav-desktop{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;
  transition:color .22s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-4px;height:2px;width:0;
  background:var(--brand);border-radius:2px;
  box-shadow:0 0 10px rgba(20,216,200,0.8);
  transition:width .24s var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{width:40%;}
.nav-link.active{color:var(--text);font-weight:600;}
.nav-link.active::after{width:100%;}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:var(--r-btn);
  background:var(--brand);color:#04231F;font-weight:600;font-size:15px;
  box-shadow:var(--shadow-btn);
  transition:transform .22s var(--ease),filter .22s var(--ease);
  white-space:nowrap;
}
.nav-cta:hover{color:#04231F;filter:brightness(1.08);transform:translateY(-2px);}
.nav-cta:active{transform:translateY(-1px);}
.nav-toggle{
  display:none;width:46px;height:46px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line);
  color:var(--text);cursor:pointer;
  align-items:center;justify-content:center;font-size:18px;
}
.nav-drawer{
  display:none;background:rgba(6,11,20,0.97);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-top:1px solid var(--line);
}
.nav-drawer.open{display:block;}
.nav-drawer a{
  display:flex;align-items:center;min-height:52px;padding:0 24px;
  font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line);
}
.nav-drawer a:hover{color:var(--brand);background:rgba(20,216,200,0.05);}
.nav-drawer a.active{color:var(--text);border-left:3px solid var(--brand);padding-left:21px;font-weight:600;}
.nav-drawer .drawer-cta{margin:18px 24px 24px;justify-content:center;border-radius:var(--r-btn);border-bottom:none;background:var(--brand);color:#04231F;font-weight:600;}

/* ============ 按钮 ============ */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:var(--r-btn);
  background:var(--brand);color:#04231F;font-weight:700;font-size:15px;
  box-shadow:var(--shadow-btn),0 0 0 1px rgba(20,216,200,0.45);
  border:none;cursor:pointer;
  transition:transform .22s var(--ease),filter .22s var(--ease);
}
.btn-main:hover{color:#04231F;filter:brightness(1.08);transform:translateY(-2px);}
.btn-main:active{transform:translateY(-1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:var(--r-btn);
  background:transparent;border:1px solid rgba(20,216,200,0.45);
  color:var(--brand);font-weight:600;font-size:15px;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.btn-ghost:hover{background:rgba(20,216,200,0.10);color:var(--brand);transform:translateY(-2px);}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand);font-weight:600;font-size:15px;
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.btn-text:hover{border-bottom-color:var(--brand);color:var(--brand);}

/* ============ Hero ============ */
.hero{
  position:relative;padding:80px 0 88px;overflow:hidden;
  min-height:62vh;display:flex;align-items:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(122,176,255,0.075) 1px,transparent 1px),
    linear-gradient(90deg,rgba(122,176,255,0.075) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(680px 460px at 22% 40%,#000 12%,transparent 78%);
  -webkit-mask-image:radial-gradient(680px 460px at 22% 40%,#000 12%,transparent 78%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-80px;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,216,200,0.16),transparent 68%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;width:100%;}
.hero-copy{grid-column:span 6;}
.hero-visual{grid-column:span 6;}
.hero h1{margin-bottom:20px;}
.hero h1 .hl{color:var(--brand);}
.hero .lead{max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;}
.pill{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--text-2);
  padding:6px 14px;border-radius:999px;
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
}
.pill i{color:var(--brand);font-size:11px;}

.glass-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-top-color:var(--line-top);
  border-radius:var(--r-card);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,0.08);
}
.hero-card{padding:18px;border-radius:var(--r-big);}
.hero-card figure{margin:0;border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;position:relative;background:var(--bg-2);}
.hero-card figure img{width:100%;height:100%;object-fit:cover;}
.hero-card figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,9,15,0) 40%,rgba(5,9,15,0.78));
}
.hero-points{margin-top:18px;display:grid;gap:12px;}
.hero-point{display:flex;align-items:flex-start;gap:12px;padding:12px 14px;border-radius:12px;background:rgba(255,255,255,0.035);border:1px solid var(--line);}
.hero-point i{color:var(--brand);font-size:15px;margin-top:3px;}
.hero-point strong{display:block;font-size:15px;color:var(--text);font-weight:600;}
.hero-point span{font-size:13px;color:var(--text-2);line-height:1.6;}

/* ============ 卖点错位栅格 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.feature-main{
  grid-column:span 6;padding:0;overflow:hidden;
  display:flex;flex-direction:column;
}
.feature-main figure{margin:0;aspect-ratio:16/9;overflow:hidden;position:relative;}
.feature-main figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.feature-main:hover figure img{transform:scale(1.04);}
.feature-main-body{padding:24px 26px 28px;}
.feature-main-body h3{margin-bottom:10px;}
.feature-main-body p{font-size:15px;margin-bottom:16px;}
.feature-side{grid-column:span 3;padding:24px;display:flex;flex-direction:column;gap:12px;}
.feature-side .ico{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(20,216,200,0.12);border:1px solid rgba(20,216,200,0.32);
  color:var(--brand);font-size:17px;
}
.feature-side h3{font-size:17px;}
.feature-side p{font-size:14px;line-height:1.7;}
.feature-row{grid-column:span 12;display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.feature-strip{
  display:flex;align-items:flex-start;gap:16px;padding:22px 24px;
  border-radius:var(--r-card);background:var(--glass);border:1px solid var(--line);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.feature-strip:hover{transform:translateY(-4px);border-color:rgba(20,216,200,0.5);}
.feature-strip .num{
  font-family:"DIN Alternate","JetBrains Mono",Consolas,monospace;
  font-size:22px;font-weight:700;color:var(--brand);line-height:1.2;min-width:42px;
}
.feature-strip h3{font-size:16px;margin-bottom:6px;}
.feature-strip p{font-size:14px;line-height:1.68;}

/* ============ 图墙 ============ */
.wall-grid{display:grid;grid-template-columns:repeat(6,1fr);grid-auto-rows:132px;gap:16px;}
.wall-item{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--line);background:var(--bg-2);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.wall-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,9,15,0.06) 30%,rgba(5,9,15,0.86));
}
.wall-item:hover{transform:translateY(-4px);border-color:rgba(20,216,200,0.55);box-shadow:0 20px 46px rgba(2,8,24,0.6);}
.wall-item:hover img{transform:scale(1.04);}
.wall-item.big{grid-column:span 2;grid-row:span 2;}
.wall-item.unit{grid-column:span 2;}
.wall-item.wide{grid-column:span 6;}
.wall-tag{
  position:absolute;top:12px;left:12px;z-index:3;
  font-size:12px;padding:4px 11px;border-radius:999px;
  background:rgba(5,9,15,0.72);border:1px solid rgba(20,216,200,0.4);
  color:var(--brand);backdrop-filter:blur(8px);
}
.wall-cap{position:absolute;left:16px;right:16px;bottom:14px;z-index:3;}
.wall-cap strong{display:block;font-size:15px;color:var(--text);font-weight:600;margin-bottom:4px;}
.wall-cap span{font-size:13px;color:var(--text-2);}
.wall-item.big .wall-cap strong{font-size:19px;}
.wall-item.big .wall-cap span{font-size:14px;}

/* ============ 数据条 ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat{
  padding:26px 24px;border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(20,216,200,0.08),rgba(255,255,255,0.03));
  border:1px solid var(--line);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.stat:hover{transform:translateY(-4px);border-color:rgba(20,216,200,0.45);}
.stat .val{
  font-family:"DIN Alternate","JetBrains Mono",Consolas,monospace;
  font-variant-numeric:tabular-nums;
  font-size:clamp(26px,3.4vw,38px);font-weight:700;color:var(--brand);line-height:1.1;
}
.stat .val small{font-size:15px;color:var(--text-2);margin-left:4px;font-weight:500;}
.stat .lab{margin-top:8px;font-size:14px;color:var(--text-2);}

/* ============ 表单 CTA ============ */
.join-wrap{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;}
.join-copy{grid-column:span 5;}
.join-copy h2{margin-bottom:16px;}
.join-list{margin-top:22px;display:grid;gap:12px;}
.join-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--text-2);}
.join-list li i{color:var(--brand);margin-top:4px;font-size:13px;}
.join-form{grid-column:span 7;padding:30px;border-radius:var(--r-big);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-field{margin-bottom:18px;}
.form-field label{display:block;font-size:14px;color:var(--text-2);margin-bottom:12px;}
.form-control,.form-select{
  width:100%;background:#0F1A2C;border:1px solid var(--line);
  border-radius:var(--r-input);color:var(--text);
  padding:13px 15px;font-size:15px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.form-control::placeholder{color:var(--text-3);}
.form-control:focus,.form-select:focus{
  outline:none;background:#0F1A2C;color:var(--text);
  border-color:var(--brand);
  box-shadow:0 0 0 1px rgba(20,216,200,0.45),0 0 22px rgba(20,216,200,0.20);
}
.form-select option{background:#0F1A2C;color:var(--text);}
.form-check{display:flex;align-items:flex-start;gap:10px;margin-bottom:22px;}
.form-check input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand);flex-shrink:0;}
.form-check label{font-size:13px;color:var(--text-3);line-height:1.6;}
.form-submit{display:flex;justify-content:flex-end;}
.form-submit .btn-main{min-width:220px;}
.form-note{margin-top:14px;font-size:13px;color:var(--text-3);}

/* ============ FAQ ============ */
.accordion{--bs-accordion-bg:transparent;--bs-accordion-border-color:transparent;--bs-accordion-btn-color:var(--text);}
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .24s var(--ease);
}
.faq-item:hover{border-color:rgba(20,216,200,0.42);}
.faq-item .accordion-button{
  background:transparent;color:var(--text);font-weight:600;font-size:16px;
  padding:18px 20px;box-shadow:none;border:none;gap:16px;
  display:flex;align-items:center;justify-content:space-between;
}
.faq-item .accordion-button:not(.collapsed){color:var(--brand);background:rgba(20,216,200,0.05);}
.faq-item .accordion-button:focus{box-shadow:none;border-color:rgba(20,216,200,0.5);}
.faq-item .accordion-button::after{display:none;}
.faq-icon{
  width:26px;height:26px;flex-shrink:0;border-radius:8px;
  border:1px solid rgba(20,216,200,0.4);color:var(--brand);
  display:grid;place-items:center;font-size:13px;
  transition:transform .26s var(--ease);
}
.accordion-button:not(.collapsed) .faq-icon{transform:rotate(180deg);background:rgba(20,216,200,0.14);}
.faq-item .accordion-body{
  padding:0 20px 20px;color:var(--text-2);font-size:15px;line-height:1.8;
  border-top:1px solid rgba(122,176,255,0.12);padding-top:16px;
}

/* ============ 最新信息列表 ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  display:flex;flex-direction:column;padding:24px;
  background:var(--glass);border:1px solid var(--line);border-top-color:var(--line-top);
  border-radius:var(--r-card);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,0.08);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
  position:relative;color:inherit;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(20,216,200,0.5);color:inherit;}
.post-card--featured{grid-column:span 2;flex-direction:row;gap:24px;padding:0;overflow:hidden;}
.post-card--featured .post-thumb{flex:0 0 46%;position:relative;overflow:hidden;}
.post-card--featured .post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.post-card--featured:hover .post-thumb img{transform:scale(1.04);}
.post-card--featured .post-body{padding:26px 26px 26px 0;display:flex;flex-direction:column;justify-content:center;}
.post-badge{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  font-size:12px;padding:4px 12px;border-radius:999px;
  color:var(--brand);background:rgba(20,216,200,0.10);
  border:1px solid rgba(20,216,200,0.32);margin-bottom:14px;
}
.post-card h3{
  font-size:17px;line-height:1.5;margin-bottom:10px;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card--featured h3{font-size:21px;}
.post-card p{
  font-size:14px;line-height:1.7;color:var(--text-2);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--text-3);margin-top:auto;}
.post-meta time{color:var(--text-3);}
.post-arrow{
  position:absolute;top:22px;right:22px;width:30px;height:30px;border-radius:9px;
  display:grid;place-items:center;color:var(--brand);
  background:rgba(20,216,200,0.10);border:1px solid rgba(20,216,200,0.28);
  transition:transform .24s var(--ease);
}
.post-card:hover .post-arrow{transform:translate(3px,-3px);}
.post-card--featured .post-arrow{position:static;margin-top:16px;}
.empty-state{
  padding:52px 24px;text-align:center;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
}
.empty-state i{font-size:26px;color:var(--text-3);margin-bottom:16px;display:block;}
.empty-state p{font-size:15px;margin-bottom:20px;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;z-index:2;margin-top:24px;padding-top:64px;
  background:linear-gradient(180deg,rgba(10,19,34,0.85),rgba(5,9,15,1));
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(20,216,200,0.55),rgba(43,110,255,0.4),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-text{font-size:17px;}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.75;margin-bottom:16px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{
  font-size:12px;color:var(--text-3);padding:4px 10px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,0.03);
}
.site-footer h4{font-size:15px;font-weight:600;color:var(--text);margin-bottom:18px;}
.footer-links{display:grid;gap:11px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.footer-contact{display:grid;gap:12px;font-size:14px;color:var(--text-2);}
.footer-contact div{display:flex;align-items:flex-start;gap:10px;}
.footer-contact i{color:var(--brand);margin-top:4px;font-size:13px;}
.qr-box{
  width:96px;height:96px;border-radius:12px;margin-top:6px;
  border:1px solid var(--line);background:rgba(255,255,255,0.04);
  display:grid;place-items:center;color:var(--text-3);font-size:12px;text-align:center;padding:8px;
}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 30px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  .container{max-width:1180px;}
}
@media (max-width:1199px){
  .nav-desktop{gap:20px;}
  .nav-link{font-size:14px;}
  .hero-copy,.hero-visual{grid-column:span 12;}
  .hero-visual{margin-top:12px;}
  .feature-main{grid-column:span 12;}
  .feature-side{grid-column:span 6;}
  .feature-row{grid-template-columns:1fr;}
  .join-copy,.join-form{grid-column:span 12;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .wall-grid{grid-template-columns:repeat(3,1fr);}
  .wall-item,.wall-item.unit{grid-column:span 1;grid-row:span 1;}
  .wall-item.big{grid-column:span 2;grid-row:span 2;}
  .wall-item.wide{grid-column:span 3;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .post-card--featured{grid-column:span 2;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .nav-desktop{display:none;}
  .nav-toggle{display:flex;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .post-grid{grid-template-columns:1fr;}
  .post-card--featured{grid-column:span 1;flex-direction:column;}
  .post-card--featured .post-thumb{flex:none;aspect-ratio:16/9;}
  .post-card--featured .post-body{padding:0 24px 24px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .topbar-label{display:none;}
  .hero{padding:56px 0 64px;min-height:auto;}
  .hero-actions{gap:10px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{flex:1 1 100%;}
  .feature-side{grid-column:span 12;}
  .wall-grid{grid-template-columns:repeat(2,1fr);grid-auto-rows:118px;gap:12px;}
  .wall-item.big{grid-column:span 2;grid-row:span 1;}
  .wall-item.wide{grid-column:span 2;}
  .form-row{grid-template-columns:1fr;}
  .form-submit{justify-content:stretch;}
  .form-submit .btn-main{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575px){
  .wall-grid{grid-template-columns:1fr;}
  .wall-item,.wall-item.big,.wall-item.wide{grid-column:span 1;}
  .stats{grid-template-columns:1fr;}
  .brand-text{font-size:15px;}
  .cd-num{min-width:26px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --bg-0:#05090F;
  --bg-1:#0A1322;
  --bg-2:#101B30;
  --glass:rgba(255,255,255,.055);
  --glass-strong:rgba(255,255,255,.09);
  --line:rgba(122,176,255,.16);
  --line-top:rgba(255,255,255,.10);
  --brand:#14D8C8;
  --brand-2:#2B6EFF;
  --accent:#FF9A2E;
  --ok:#38D39F;
  --warn:#FFB020;
  --err:#FF5C6C;
  --text-1:#E8F1FF;
  --text-2:#9DB0C9;
  --text-3:#6B7C93;
  --radius-card:16px;
  --radius-big:20px;
  --radius-btn:10px;
  --radius-input:12px;
  --radius-img:14px;
  --shadow-card:0 18px 48px rgba(2,8,24,.55);
  --shadow-glow:0 8px 28px rgba(20,216,200,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:240ms;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"DIN Alternate","JetBrains Mono",Consolas,monospace;
  --bs-primary:#14D8C8;
  --bs-body-bg:#05090F;
  --bs-body-color:#E8F1FF;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-sans);
  font-size:15px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(122,176,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(122,176,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--brand)}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0}
button{font-family:inherit;border:0;background:none;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

/* ============ 顶部倒计时条 ============ */
.topbar{
  position:sticky;
  top:0;
  z-index:60;
  height:44px;
  background:linear-gradient(90deg,rgba(255,154,46,.09),rgba(20,216,200,.07));
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  border-image:linear-gradient(90deg,rgba(255,154,46,.5),rgba(20,216,200,.5)) 1;
}
.topbar-inner{
  height:44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0}
.topbar-label{
  font-size:13px;
  color:var(--accent);
  letter-spacing:.04em;
  white-space:nowrap;
}
.countdown{display:flex;align-items:center;gap:4px;font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:14px;color:var(--text-1)}
.cd-num{
  display:inline-block;
  min-width:30px;
  padding:2px 6px;
  text-align:center;
  border-radius:6px;
  background:rgba(255,255,255,.07);
  border:1px solid var(--line);
  font-size:13px;
}
.cd-sep{color:var(--text-3);font-size:12px;padding:0 1px}
.topbar-cta{
  font-size:13px;
  padding:5px 14px;
  border-radius:999px;
  color:#04161A;
  background:var(--brand);
  box-shadow:0 0 0 1px rgba(20,216,200,.45),0 6px 18px rgba(20,216,200,.22);
  white-space:nowrap;
  transition:transform var(--dur) var(--ease),filter var(--dur) var(--ease);
}
.topbar-cta:hover{filter:brightness(1.08);transform:translateY(-2px);color:#04161A}
.topbar-cta:active{transform:translateY(0)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:44px;
  z-index:50;
  background:rgba(6,11,20,.72);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(5,9,15,.92);
  border-bottom-color:var(--line);
}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  display:grid;place-items:center;
  box-shadow:0 6px 20px rgba(20,216,200,.28);
}
.brand-mark span{width:12px;height:12px;border-radius:3px;background:#04161A;transform:rotate(45deg);display:block}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--text-1)}
.nav-desktop{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:6px 0;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 10px rgba(20,216,200,.7);
  transition:width var(--dur) var(--ease);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{width:40%}
.nav-link.active{color:var(--text-1);font-weight:600}
.nav-link.active::after{width:100%}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;
  border-radius:var(--radius-btn);
  font-size:14px;font-weight:600;
  color:#04161A;
  background:var(--brand);
  box-shadow:var(--shadow-glow),0 0 0 1px rgba(20,216,200,.45);
  transition:transform var(--dur) var(--ease),filter var(--dur) var(--ease);
}
.nav-cta:hover{filter:brightness(1.08);transform:translateY(-2px);color:#04161A}
.nav-cta:active{transform:translateY(0)}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:10px;
  color:var(--text-1);
  font-size:18px;
  border:1px solid var(--line);
  background:var(--glass);
}
.nav-drawer{
  display:none;
  flex-direction:column;
  background:rgba(5,9,15,.97);
  backdrop-filter:blur(18px);
  border-top:1px solid var(--line);
}
.nav-drawer a{
  height:52px;
  display:flex;
  align-items:center;
  padding:0 24px;
  font-size:15px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
  border-left:3px solid transparent;
}
.nav-drawer a:hover{color:var(--text-1)}
.nav-drawer a.active{color:var(--text-1);border-left-color:var(--brand);background:rgba(20,216,200,.06)}
.nav-drawer .drawer-cta{
  margin:18px 24px 24px;
  height:auto;
  padding:13px 18px;
  justify-content:center;
  border-radius:var(--radius-btn);
  border:1px solid rgba(20,216,200,.45);
  background:var(--brand);
  color:#04161A;
  font-weight:600;
  border-left-width:1px;
}
.drawer-open .nav-drawer{display:flex}

/* ============ 面包屑 + 文章头部 ============ */
.article-hero{
  position:relative;
  padding:56px 0 44px;
  background:
    linear-gradient(180deg,rgba(10,19,34,.94),rgba(5,9,15,.98)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.article-hero::after{
  content:"";
  position:absolute;
  right:-120px;top:-140px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(20,216,200,.16),transparent 68%);
  pointer-events:none;
}
.breadcrumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--text-3);opacity:.6}
.breadcrumb .current{color:var(--text-2);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.06em;
  color:var(--brand);
  padding:6px 14px;
  border-radius:999px;
  border:1px solid rgba(20,216,200,.28);
  background:rgba(20,216,200,.07);
  margin-bottom:20px;
}
.article-title{
  font-size:clamp(28px,4.2vw,46px);
  font-weight:700;
  line-height:1.22;
  letter-spacing:.01em;
  max-width:900px;
  margin-bottom:22px;
}
.meta-bar{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-2);
}
.meta-badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  color:#04161A;
  background:var(--brand);
  font-weight:600;
}
.meta-item{display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:var(--glass)}
.meta-item i{color:var(--brand)}
.meta-tag{
  padding:5px 12px;
  border-radius:999px;
  font-size:12px;
  color:var(--text-2);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
}

/* ============ 正文阅读区 ============ */
.section{padding:72px 0}
.reading-wrap{max-width:780px;margin:0 auto}
.article-shell{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-big);
  box-shadow:var(--shadow-card),inset 0 1px 0 var(--line-top);
  padding:36px 40px 40px;
}
.article-content{
  font-size:17px;
  line-height:1.9;
  color:#D9E5F5;
  word-break:break-word;
}
.article-content > *:first-child{margin-top:0}
.article-content p{margin:0 0 1.2em}
.article-content h2{
  font-size:clamp(20px,2.4vw,26px);
  font-weight:700;
  line-height:1.35;
  color:var(--text-1);
  margin:2em 0 .9em;
  padding-left:14px;
  border-left:3px solid var(--brand);
}
.article-content h3{
  font-size:19px;
  font-weight:600;
  color:var(--brand);
  margin:1.6em 0 .6em;
}
.article-content h4{font-size:17px;font-weight:600;color:var(--text-1);margin:1.4em 0 .5em}
.article-content ul,.article-content ol{padding-left:1.4em;margin:0 0 1.2em}
.article-content li{margin:.4em 0}
.article-content blockquote{
  margin:1.5em 0;
  padding:16px 20px;
  background:var(--glass);
  border-left:3px solid var(--brand);
  border-radius:12px;
  color:var(--text-2);
}
.article-content img{max-width:100%;height:auto;border-radius:var(--radius-img);margin:1.5em auto}
.article-content figure{margin:1.5em 0}
.article-content figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:10px}
.article-content a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-content strong{color:#fff;font-weight:600}
.article-content table{
  width:100%;
  border-collapse:collapse;
  margin:1.5em 0;
  font-size:15px;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
}
.article-content th,.article-content td{
  border:1px solid var(--line);
  padding:11px 14px;
  text-align:left;
}
.article-content th{background:rgba(20,216,200,.08);color:var(--text-1);font-weight:600}
.article-content tr:nth-child(even) td{background:rgba(255,255,255,.025)}
.article-content hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.article-content code{
  font-family:var(--font-mono);
  font-size:.92em;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 6px;
}
.empty-state{
  text-align:center;
  padding:52px 24px;
  border-radius:var(--radius-card);
  border:1px dashed var(--line);
  background:rgba(255,255,255,.02);
}
.empty-state i{font-size:34px;color:var(--text-3);margin-bottom:16px;display:block}
.empty-state h2{font-size:20px;font-weight:600;margin-bottom:10px}
.empty-state p{color:var(--text-2);margin-bottom:22px}

/* ============ 上下篇 ============ */
.post-nav{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
  margin-top:32px;
}
.post-card{
  display:block;
  padding:22px 24px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:inset 0 1px 0 var(--line-top);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(20,216,200,.5)}
.post-card .dir{font-size:12px;color:var(--text-3);letter-spacing:.08em;display:block;margin-bottom:8px}
.post-card .ttl{font-size:16px;font-weight:600;color:var(--text-1);line-height:1.5}
.post-card.right{text-align:right}

/* ============ 相关推荐 ============ */
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:34px;
}
.related-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:var(--shadow-card),inset 0 1px 0 var(--line-top);
  overflow:hidden;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.related-card:hover{transform:translateY(-4px);border-color:rgba(20,216,200,.5)}
.related-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.related-card:hover .related-thumb img{transform:scale(1.04)}
.related-body{padding:18px 20px 20px}
.related-body h3{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:10px}
.related-body p{font-size:13px;color:var(--text-2);line-height:1.65;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-date{font-size:13px;color:var(--text-3);font-family:var(--font-mono);margin-top:14px;display:block}

/* ============ 返回栏目 ============ */
.back-row{display:flex;justify-content:center;margin-top:36px}

/* ============ CTA 条 ============ */
.cta-strip{
  border-radius:var(--radius-big);
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(20,216,200,.12),rgba(43,110,255,.08));
  box-shadow:var(--shadow-card),inset 0 1px 0 var(--line-top);
  padding:40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.cta-strip h2{font-size:clamp(20px,2.4vw,28px);font-weight:700;margin-bottom:10px}
.cta-strip p{color:var(--text-2);font-size:15px;max-width:640px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 按钮 ============ */
.btn-main{
  display:inline-flex;align-items:center;gap:9px;
  padding:12px 24px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  color:#04161A;
  background:var(--brand);
  box-shadow:var(--shadow-glow),0 0 0 1px rgba(20,216,200,.45);
  transition:transform var(--dur) var(--ease),filter var(--dur) var(--ease);
}
.btn-main:hover{filter:brightness(1.08);transform:translateY(-2px);color:#04161A}
.btn-main:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;
  padding:12px 24px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  color:var(--brand);
  border:1px solid rgba(20,216,200,.45);
  background:transparent;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn-ghost:hover{background:rgba(20,216,200,.1);transform:translateY(-2px);color:var(--brand)}
.btn-ghost:active{transform:translateY(0)}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--brand);
  border-bottom:1px solid transparent;
  transition:border-color var(--dur) var(--ease);
}
.btn-text:hover{border-bottom-color:var(--brand)}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:40px;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,rgba(20,216,200,.6),rgba(43,110,255,.35),transparent) 1;
  background:var(--bg-1);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-desc{font-size:13px;color:var(--text-2);line-height:1.8;max-width:340px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-tags span{
  font-size:12px;color:var(--text-2);
  padding:5px 12px;border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
}
.site-footer h4{font-size:15px;font-weight:600;color:var(--text-1);margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:13px;color:var(--text-2)}
.footer-links a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.footer-contact{display:flex;flex-direction:column;gap:14px;font-size:13px;color:var(--text-2)}
.footer-contact div{display:flex;align-items:center;gap:10px}
.footer-contact i{color:var(--brand)}
.qr-box{
  width:120px;height:120px;
  border-radius:12px;
  border:1px dashed var(--line);
  background:rgba(255,255,255,.03);
  display:flex;align-items:center;justify-content:center;
  text-align:center;
  font-size:12px;color:var(--text-3);
  line-height:1.7;
}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:28px}
}
@media (max-width:991px){
  .nav-desktop{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .site-header{top:44px}
  .section{padding:56px 0}
  .article-hero{padding:44px 0 36px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .article-shell{padding:30px 28px 34px}
  .cta-strip{padding:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .topbar-label{display:none}
  .topbar-inner{gap:10px}
  .cd-num{min-width:26px;padding:2px 5px;font-size:12px}
  .post-nav{grid-template-columns:1fr}
  .post-card.right{text-align:left}
  .related-grid{grid-template-columns:1fr}
  .article-shell{padding:24px 20px 28px}
  .article-content{font-size:16px}
  .cta-strip{padding:26px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;justify-content:center}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr}
  .breadcrumb .current{max-width:180px}
  .article-title{font-size:26px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .related-card:hover,.post-card:hover,.btn-main:hover,.btn-ghost:hover,.nav-cta:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --bg-0:#05090F;
  --bg-1:#0A1322;
  --bg-2:#101B30;
  --glass:rgba(255,255,255,0.055);
  --line:rgba(122,176,255,0.16);
  --line-top:rgba(255,255,255,0.10);
  --brand:#14D8C8;
  --brand-2:#2B6EFF;
  --accent:#FF9A2E;
  --ok:#38D39F;
  --warn:#FFB020;
  --err:#FF5C6C;
  --t1:#E8F1FF;
  --t2:#9DB0C9;
  --t3:#6B7C93;
  --r-card:16px;
  --r-btn:10px;
  --r-pill:999px;
  --r-input:12px;
  --r-img:14px;
  --shadow-card:0 18px 48px rgba(2,8,24,0.55);
  --ease:cubic-bezier(.22,.61,.36,1);
  --maxw:1240px;
  --bs-primary:#14D8C8;
  --bs-primary-rgb:20,216,200;
  --bs-body-bg:#05090F;
  --bs-body-color:#E8F1FF;
  --bs-border-color:rgba(122,176,255,0.16);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),opacity .22s var(--ease);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.num{font-family:"DIN Alternate","JetBrains Mono",Consolas,monospace;font-variant-numeric:tabular-nums;}

/* ---------- 顶部倒计时条 ---------- */
.topbar{
  position:sticky;top:0;z-index:80;height:44px;
  background:linear-gradient(90deg,rgba(255,154,46,.09),rgba(20,216,200,.08));
  backdrop-filter:blur(14px) saturate(140%);
}
.topbar::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(255,154,46,.5),rgba(20,216,200,.4),rgba(43,110,255,.28));
}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;height:44px;
}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0;}
.topbar-label{
  font-size:13px;color:var(--t2);white-space:nowrap;
  display:inline-flex;align-items:center;gap:6px;
}
.topbar-label i{color:var(--accent);}
.cd{display:flex;align-items:center;gap:4px;font-size:14px;color:var(--t1);}
.cd span.sep{color:var(--t3);}
.cd .cell{
  min-width:32px;text-align:center;padding:2px 6px;border-radius:8px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  color:var(--brand);font-weight:700;font-size:13px;
}
.topbar-btn{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;
  border-radius:var(--r-pill);font-size:13px;font-weight:600;
  color:#04121A;background:linear-gradient(135deg,#19E4D3,#0FB9AC);
  box-shadow:0 6px 18px rgba(20,216,200,.3),0 0 0 1px rgba(20,216,200,.4);
  white-space:nowrap;transition:transform .22s var(--ease),filter .22s var(--ease);
}
.topbar-btn:hover{filter:brightness(1.08);transform:translateY(-1px);}
.topbar-btn:active{transform:translateY(0);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:44px;z-index:70;
  background:rgba(6,11,20,.72);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.scrolled{background:rgba(4,8,15,.94);border-bottom-color:var(--line);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,rgba(20,216,200,.95),rgba(43,110,255,.7));
  display:grid;place-items:center;
  box-shadow:0 8px 22px rgba(20,216,200,.26);
}
.brand-mark span{width:12px;height:12px;border-radius:3px;background:#04121A;box-shadow:0 0 8px rgba(4,18,26,.9);}
.brand-text{font-size:17px;font-weight:700;color:#fff;letter-spacing:.4px;}
.nav-desktop{display:flex;align-items:center;gap:28px;}
.nav-link{position:relative;font-size:15px;color:var(--t2);padding:6px 0;white-space:nowrap;}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-4px;height:2px;width:0;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(20,216,200,.85);
  transition:width .24s var(--ease);
}
.nav-link:hover{color:var(--t1);}
.nav-link:hover::after{width:40%;}
.nav-link.active{color:#fff;}
.nav-link.active::after{width:100%;}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;
  border-radius:var(--r-btn);font-size:14px;font-weight:700;color:#04121A;
  background:linear-gradient(135deg,#19E4D3,#0FB9AC);
  box-shadow:0 8px 28px rgba(20,216,200,.28),0 0 0 1px rgba(20,216,200,.45);
  transition:transform .22s var(--ease),filter .22s var(--ease);
  white-space:nowrap;
}
.nav-cta:hover{filter:brightness(1.08);transform:translateY(-1px);color:#04121A;}
.nav-cta:active{transform:translateY(1px);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:var(--glass);color:var(--t1);font-size:17px;
  place-items:center;cursor:pointer;transition:border-color .22s var(--ease);
}
.nav-toggle:hover{border-color:rgba(20,216,200,.6);}
.nav-drawer{display:none;}
.nav-drawer a{
  display:flex;align-items:center;height:52px;padding:0 4px;font-size:16px;color:var(--t2);
  border-bottom:1px solid var(--line);
}
.nav-drawer a.active{color:#fff;border-left:3px solid var(--brand);padding-left:14px;}
.nav-drawer a.drawer-cta{
  justify-content:center;margin-top:18px;height:46px;border:0;border-radius:var(--r-btn);
  background:linear-gradient(135deg,#19E4D3,#0FB9AC);color:#04121A;font-weight:700;
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;position:relative;}
.section-alt{background:var(--bg-1);}
.sec-head{max-width:720px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;margin-bottom:16px;
  border-radius:var(--r-pill);font-size:13px;color:var(--brand);
  background:rgba(20,216,200,.09);border:1px solid rgba(20,216,200,.26);
}
.eyebrow i{font-size:11px;}
.sec-head h2{font-size:clamp(22px,3vw,32px);margin-bottom:14px;}
.sec-head p{color:var(--t2);font-size:15.5px;}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  padding:76px 0 88px;
  background:
    radial-gradient(900px 520px at 88% 8%,rgba(43,110,255,.20),transparent 62%),
    radial-gradient(760px 460px at 6% 96%,rgba(20,216,200,.14),transparent 60%),
    linear-gradient(180deg,#05090F 0%,#081120 58%,#05090F 100%);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(122,176,255,.09) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(122,176,255,.09) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(closest-side at 50% 40%,#000 30%,transparent 85%);
  -webkit-mask-image:radial-gradient(closest-side at 50% 40%,#000 30%,transparent 85%);
}
.cat-hero .container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--t3);margin-bottom:26px;flex-wrap:wrap;}
.crumb a:hover{color:var(--brand);}
.crumb span.dot{color:var(--t3);opacity:.6;}
.crumb .now{color:var(--t2);}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center;}
.cat-hero h1{font-size:clamp(28px,4.2vw,46px);line-height:1.22;margin-bottom:20px;}
.cat-hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{font-size:16px;color:var(--t2);max-width:620px;margin-bottom:26px;}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.pill{
  display:inline-flex;align-items:center;gap:7px;height:32px;padding:0 14px;
  border-radius:var(--r-pill);font-size:13px;color:var(--t2);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(12px);
}
.pill i{color:var(--brand);font-size:11px;}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;}
.btn-main{
  display:inline-flex;align-items:center;gap:9px;height:48px;padding:0 24px;
  border-radius:var(--r-btn);font-size:15px;font-weight:700;color:#04121A;
  background:linear-gradient(135deg,#19E4D3,#0FB9AC);
  box-shadow:0 8px 28px rgba(20,216,200,.28),0 0 0 1px rgba(20,216,200,.45);
  transition:transform .22s var(--ease),filter .22s var(--ease);border:0;cursor:pointer;
}
.btn-main:hover{filter:brightness(1.08);transform:translateY(-2px);color:#04121A;}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;height:48px;padding:0 22px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;color:var(--brand);
  background:transparent;border:1px solid rgba(20,216,200,.42);
  transition:transform .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease);
}
.btn-ghost:hover{background:rgba(20,216,200,.1);border-color:rgba(20,216,200,.75);transform:translateY(-2px);color:var(--brand);}
.link-arrow{
  display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--brand);font-weight:600;
  border-bottom:1px solid transparent;transition:border-color .22s var(--ease);
}
.link-arrow:hover{border-bottom-color:rgba(20,216,200,.7);}
.hero-visual{position:relative;}
.visual-frame{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card),inset 0 1px 0 var(--line-top);
  background:var(--bg-2);
  aspect-ratio:16/11;
}
.visual-frame img{width:100%;height:100%;object-fit:cover;}
.visual-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,9,15,0) 40%,rgba(5,9,15,.78) 100%);
}
.visual-card{
  position:absolute;left:20px;right:20px;bottom:20px;z-index:3;
  border-radius:var(--r-card);padding:16px 18px;
  background:rgba(10,19,34,.72);border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:inset 0 1px 0 var(--line-top);
}
.visual-card .row{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--t2);}
.visual-card .row + .row{margin-top:8px;}
.visual-card .row i{color:var(--brand);width:16px;text-align:center;}
.visual-badge{
  position:absolute;top:18px;left:18px;z-index:3;
  display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12.5px;font-weight:600;color:#04121A;
  background:linear-gradient(135deg,#FFB658,#FF9A2E);
  box-shadow:0 8px 22px rgba(255,154,46,.28);
}

/* ---------- 要点清单 ---------- */
.points-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 56px;}
.point{display:flex;gap:18px;padding:24px 0;border-bottom:1px solid var(--line);}
.point-icon{
  width:44px;height:44px;flex-shrink:0;border-radius:12px;display:grid;place-items:center;
  background:rgba(20,216,200,.1);border:1px solid rgba(20,216,200,.26);
  color:var(--brand);font-size:17px;
}
.point h3{font-size:18px;margin-bottom:8px;}
.point p{color:var(--t2);font-size:15px;}
.point .tag{
  display:inline-block;margin-top:10px;font-size:12.5px;color:var(--t3);
  border:1px dashed var(--line);border-radius:var(--r-pill);padding:2px 12px;
}

/* ---------- 图墙 ---------- */
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.g-card{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.g-card:hover{transform:translateY(-4px);border-color:rgba(20,216,200,.55);}
.g-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg-2);}
.g-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.g-card:hover .g-thumb img{transform:scale(1.04);}
.g-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,9,15,0) 45%,rgba(5,9,15,.72) 100%);
}
.g-tag{
  position:absolute;top:12px;left:12px;z-index:2;
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;color:var(--brand);background:rgba(6,13,24,.78);border:1px solid rgba(20,216,200,.35);
}
.g-body{padding:16px 18px 20px;}
.g-body h3{font-size:16.5px;margin-bottom:8px;}
.g-body p{font-size:13.5px;color:var(--t2);line-height:1.65;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.accordion-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:14px;overflow:hidden;
  box-shadow:inset 0 1px 0 var(--line-top);
}
.accordion-button{
  width:100%;text-align:left;background:transparent;border:0;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--t1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  box-shadow:none !important;transition:color .22s var(--ease);
}
.accordion-button::after{
  content:"\002B";font-size:20px;line-height:1;color:var(--brand);
  transition:transform .26s var(--ease);margin-left:auto;
}
.accordion-button:not(.collapsed){color:var(--brand);}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg);}
.accordion-button:hover{color:var(--brand);}
.accordion-button:focus{outline:2px solid var(--brand);outline-offset:-2px;}
.accordion-body{
  padding:0 20px 20px;color:var(--t2);font-size:15px;
  border-top:1px solid rgba(122,176,255,.12);padding-top:16px;margin-top:0;
}
.accordion-button:not(.collapsed){background:rgba(20,216,200,.05);}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;border-radius:20px;padding:52px 48px;
  background:
    radial-gradient(700px 380px at 12% 10%,rgba(20,216,200,.16),transparent 62%),
    radial-gradient(600px 320px at 92% 90%,rgba(43,110,255,.18),transparent 62%),
    linear-gradient(140deg,rgba(16,27,48,.95),rgba(8,15,28,.95));
  border:1px solid var(--line);
  box-shadow:var(--shadow-card),inset 0 1px 0 var(--line-top);
}
.cta-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;}
.cta-panel h2{font-size:clamp(22px,3vw,30px);margin-bottom:14px;}
.cta-panel p.lead{color:var(--t2);font-size:15.5px;margin-bottom:24px;max-width:520px;}
.cta-list{display:grid;gap:10px;margin-bottom:26px;}
.cta-list div{display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--t2);}
.cta-list i{color:var(--brand);font-size:12px;}
.form-card{
  background:rgba(10,19,34,.78);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;backdrop-filter:blur(16px) saturate(140%);
  box-shadow:inset 0 1px 0 var(--line-top);
}
.form-card label{display:block;font-size:13.5px;color:var(--t2);margin-bottom:12px;}
.form-card .field{margin-bottom:18px;}
.form-control{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-input);
  background:#0F1A2C;border:1px solid var(--line);color:var(--t1);font-size:15px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.form-control::placeholder{color:var(--t3);}
.form-control:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(20,216,200,.16);
}
.form-note{font-size:12.5px;color:var(--t3);line-height:1.6;margin-bottom:18px;}
.form-card .btn-main{width:220px;margin-left:auto;justify-content:center;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--bg-1);padding:0;margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(20,216,200,.55),rgba(43,110,255,.4),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:40px;padding:72px 0 44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--t2);line-height:1.8;margin-bottom:18px;max-width:340px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{
  font-size:12.5px;color:var(--t3);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:3px 11px;background:rgba(255,255,255,.03);
}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:600;}
.footer-links{display:grid;gap:11px;}
.footer-links a{font-size:14px;color:var(--t2);}
.footer-links a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.footer-contact{display:grid;gap:12px;}
.footer-contact > div{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--t2);}
.footer-contact i{color:var(--brand);font-size:13px;width:16px;text-align:center;}
.qr-box{
  margin-top:6px;width:112px;height:112px;border-radius:var(--r-card);
  border:1px dashed var(--line);display:grid;place-items:center;text-align:center;
  font-size:12px;color:var(--t3);background:rgba(255,255,255,.03);line-height:1.6;
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid var(--line);
  font-size:13px;color:var(--t3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .gallery-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;}
  .footer-grid > div:last-child{grid-column:1 / -1;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .nav-desktop{display:none;}
  .nav-toggle{display:grid;}
  .nav-drawer.open{
    display:block;position:fixed;left:0;right:0;top:116px;bottom:0;z-index:65;
    padding:12px 24px 32px;overflow-y:auto;
    background:rgba(5,9,15,.97);backdrop-filter:blur(18px) saturate(140%);
    border-top:1px solid var(--line);
  }
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .cat-hero{padding:56px 0 64px;}
  .points-grid{grid-template-columns:1fr;gap:0;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .cta-panel{padding:40px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 36px;}
  .footer-grid > div:last-child{grid-column:1 / -1;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .topbar-inner{padding:0 16px;}
  .topbar-label{display:none;}
  .section{padding:56px 0;}
  .cat-hero h1{font-size:28px;}
  .gallery-grid{grid-template-columns:1fr;gap:18px;}
  .form-card .btn-main{width:100%;margin-left:0;}
  .brand-text{font-size:16px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
  .btn-row .btn-main,.btn-row .btn-ghost{width:100%;justify-content:center;}
  .visual-card{left:12px;right:12px;bottom:12px;padding:12px 14px;}
  .cta-panel{padding:32px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --bg-0:#05090F;--bg-1:#0A1322;--bg-2:#101B30;
  --glass:rgba(255,255,255,.055);
  --line:rgba(122,176,255,.16);
  --line-top:rgba(255,255,255,.10);
  --brand:#14D8C8;--brand-2:#2B6EFF;--accent:#FF9A2E;
  --ok:#38D39F;--warn:#FFB020;--err:#FF5C6C;
  --text:#E8F1FF;--text-2:#9DB0C9;--text-3:#6B7C93;
  --r-card:16px;--r-lg:20px;--r-btn:10px;--r-pill:999px;--r-input:12px;--r-img:14px;
  --shadow-card:0 18px 48px rgba(2,8,24,.55);
  --shadow-glow:0 8px 28px rgba(20,216,200,.28),0 0 0 1px rgba(20,216,200,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bar-h:44px;--head-h:72px;
  --mono:"DIN Alternate","JetBrains Mono",Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-0);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
::selection{background:rgba(20,216,200,.28)}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ---------- 顶部倒计时条 ---------- */
.promo-bar{
  position:sticky;top:0;z-index:70;height:var(--bar-h);
  display:flex;align-items:center;
  background:linear-gradient(90deg,rgba(255,154,46,.10),rgba(20,216,200,.08));
  backdrop-filter:blur(14px) saturate(140%);
}
.promo-bar::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(255,154,46,.6),rgba(20,216,200,.6),rgba(20,216,200,0))}
.promo-inner{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.promo-left{display:flex;align-items:center;gap:12px;min-width:0}
.promo-label{font-size:13px;color:var(--text-2);white-space:nowrap}
.promo-clock{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:14px;color:var(--accent);letter-spacing:.03em;white-space:nowrap}
.promo-clock b{color:var(--text);font-weight:600}
.promo-link{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:#052A26;background:linear-gradient(120deg,var(--brand),#4ff0e0);
  box-shadow:0 0 0 1px rgba(20,216,200,.45),0 6px 18px rgba(20,216,200,.25);
  transition:transform .22s var(--ease),filter .22s var(--ease);
}
.promo-link:hover{transform:translateY(-2px);filter:brightness(1.08)}
.promo-link:active{transform:translateY(0)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:var(--bar-h);z-index:60;
  background:rgba(6,11,20,.72);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(5,9,15,.94);border-bottom-color:var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:var(--head-h);gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:.01em}
.brand-text{white-space:nowrap}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;flex:0 0 auto;
  background:linear-gradient(135deg,rgba(20,216,200,.95),rgba(43,110,255,.75));
  box-shadow:0 0 0 1px rgba(20,216,200,.4),0 6px 18px rgba(20,216,200,.22);
}
.brand-mark span{width:11px;height:11px;border-radius:3px;background:#04181A;display:block}
.nav-desktop{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 0}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand);opacity:0;transform:scaleX(.4);transform-origin:left;
  box-shadow:0 0 10px rgba(20,216,200,.7);transition:opacity .24s var(--ease),transform .24s var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{opacity:.55;transform:scaleX(.4)}
.nav-link.active{color:var(--text)}
.nav-link.active::after{opacity:1;transform:scaleX(1)}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;border-radius:var(--r-btn);
  font-size:14px;font-weight:700;color:#03201E;background:var(--brand);box-shadow:var(--shadow-glow);
  transition:transform .22s var(--ease),filter .22s var(--ease);white-space:nowrap;
}
.nav-cta:hover{transform:translateY(-2px);filter:brightness(1.08)}
.nav-cta:active{transform:translateY(-1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:var(--glass);color:var(--text);align-items:center;justify-content:center;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.nav-toggle:hover{border-color:rgba(20,216,200,.5);color:var(--brand)}
.nav-drawer{
  display:none;position:fixed;left:0;right:0;top:calc(var(--bar-h) + var(--head-h));bottom:0;
  background:rgba(6,11,20,.97);backdrop-filter:blur(18px) saturate(140%);
  padding:8px 16px 32px;overflow-y:auto;z-index:59;
}
.nav-drawer a{
  display:flex;align-items:center;height:52px;padding:0 14px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line);position:relative;
}
.nav-drawer a.active{color:var(--text);font-weight:600}
.nav-drawer a.active::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:2px;background:var(--brand);box-shadow:0 0 10px rgba(20,216,200,.8)}
.nav-drawer a.drawer-cta{
  margin-top:20px;justify-content:center;border-bottom:0;border-radius:var(--r-btn);
  background:var(--brand);color:#03201E;font-weight:700;height:48px;box-shadow:var(--shadow-glow);
}
body.nav-open .nav-drawer{display:block}

/* ---------- 通用按钮 ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);border:0;
  font-size:15px;font-weight:700;color:#03201E;background:var(--brand);box-shadow:var(--shadow-glow);
  cursor:pointer;transition:transform .22s var(--ease),filter .22s var(--ease);
}
.btn-main:hover{transform:translateY(-2px);filter:brightness(1.08)}
.btn-main:active{transform:translateY(-1px)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;color:var(--brand);background:transparent;
  border:1px solid rgba(20,216,200,.45);cursor:pointer;
  transition:transform .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease);
}
.btn-ghost:hover{transform:translateY(-2px);background:rgba(20,216,200,.08);border-color:var(--brand)}
.btn-text{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:600}
.btn-text i{transition:transform .22s var(--ease)}
.btn-text:hover i{transform:translateX(4px)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:86px 0 76px;background:var(--bg-1);isolation:isolate}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.32;z-index:-2}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(5,9,15,.95) 0%,rgba(5,9,15,.78) 46%,rgba(10,19,34,.62) 100%)}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(rgba(122,176,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(122,176,255,.07) 1px,transparent 1px);
  background-size:56px 56px;opacity:.55;
}
.hero-inner{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(20,216,200,.10);border:1px solid rgba(20,216,200,.32);
  color:var(--brand);font-size:13px;font-weight:600;letter-spacing:.02em;
}
.hero h1{font-size:clamp(28px,4.2vw,46px);font-weight:700;line-height:1.22;margin:20px 0 18px;letter-spacing:-.01em}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{font-size:16px;color:var(--text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.tag{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 13px;border-radius:var(--r-pill);
  font-size:13px;color:var(--text-2);background:var(--glass);border:1px solid var(--line);
}
.glass-panel{
  background:var(--glass);border:1px solid var(--line-top);
  border-radius:var(--r-lg);padding:26px;
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(16px) saturate(140%);
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.panel-head h2{font-size:16px;font-weight:600;color:var(--text)}
.panel-badge{font-size:12px;color:var(--accent);border:1px solid rgba(255,154,46,.4);border-radius:var(--r-pill);padding:2px 10px}
.panel-media{position:relative;overflow:hidden;border-radius:var(--r-img);border:1px solid var(--line);aspect-ratio:16/10;background:var(--bg-2);margin-bottom:20px}
.panel-media img{width:100%;height:100%;object-fit:cover;transition:transform .26s var(--ease)}
.panel-media:hover img{transform:scale(1.04)}
.panel-list li{display:flex;gap:12px;padding:12px 0;border-top:1px solid var(--line);font-size:14px;color:var(--text-2)}
.panel-list li:first-child{border-top:0;padding-top:0}
.panel-list i{color:var(--brand);margin-top:4px}
.panel-list strong{color:var(--text);font-weight:600;display:block;font-size:15px}

/* ---------- 板块通用 ---------- */
section{position:relative}
.sec{padding:96px 0}
.sec-alt{background:var(--bg-1)}
.sec-head{max-width:720px;margin-bottom:48px}
.sec-head h2{font-size:clamp(22px,3vw,32px);font-weight:700;margin-bottom:14px}
.sec-head p{color:var(--text-2);font-size:15px}
.sec-kicker{display:inline-block;font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.08em;margin-bottom:12px}

/* ---------- 时间线 ---------- */
.timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.timeline::before{
  content:"";position:absolute;top:22px;left:22px;right:22px;height:1px;
  background:linear-gradient(90deg,rgba(20,216,200,.55),rgba(43,110,255,.38),rgba(122,176,255,.12));
}
.timeline li{position:relative;padding-top:70px}
.tl-num{
  position:absolute;top:0;left:0;width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;font-family:var(--mono);font-weight:700;font-size:15px;
  color:var(--brand);background:var(--bg-2);border:1px solid rgba(20,216,200,.35);
  box-shadow:0 0 0 6px rgba(5,9,15,.92);
}
.timeline h3{font-size:18px;font-weight:600;margin-bottom:10px}
.timeline p{font-size:14px;color:var(--text-2)}

/* ---------- 双栏图文 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split + .split{margin-top:72px}
.split-rev .split-media{order:2}
.split-media{position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line);aspect-ratio:16/10;background:var(--bg-2);box-shadow:var(--shadow-card)}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform .26s var(--ease)}
.split-media:hover img{transform:scale(1.04)}
.split-media .corner{
  position:absolute;left:16px;top:16px;height:28px;padding:0 12px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;color:#03201E;
  background:rgba(20,216,200,.92);
}
.split h3{font-size:clamp(20px,2.4vw,26px);font-weight:700;margin-bottom:16px}
.split p{color:var(--text-2);font-size:15px}
.check-list{margin-top:22px;display:grid;gap:12px}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2)}
.check-list i{color:var(--brand);margin-top:5px}

/* ---------- 数据条 ---------- */
.stats-band{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:44px 24px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat-num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:700;font-size:clamp(28px,3.4vw,40px);color:var(--brand);letter-spacing:.02em;line-height:1.2}
.stat-num small{font-size:15px;color:var(--text-2);margin-left:4px;font-weight:500}
.stat-label{margin-top:8px;font-size:14px;color:var(--text-2)}

/* ---------- CTA + 表单 ---------- */
.cta-band{padding:96px 0;background:radial-gradient(900px 420px at 15% 0%,rgba(20,216,200,.10),transparent 62%),var(--bg-0)}
.cta-wrap{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);padding:44px;
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(16px) saturate(140%);
}
.cta-wrap h2{font-size:clamp(22px,2.8vw,30px);margin-bottom:16px}
.cta-wrap p{color:var(--text-2);font-size:15px}
.cta-facts{margin-top:24px;display:grid;gap:12px}
.cta-facts li{display:flex;gap:10px;font-size:14px;color:var(--text-2)}
.cta-facts i{color:var(--brand);margin-top:4px}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px}
.form-control-dark{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-input);
  background:#0F1A2C;border:1px solid var(--line);color:var(--text);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
textarea.form-control-dark{height:96px;padding:12px 14px;resize:vertical}
.form-control-dark::placeholder{color:var(--text-3)}
.form-control-dark:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(20,216,200,.16)}
.form-note{font-size:12px;color:var(--text-3);margin-top:12px}
.form-actions{display:flex;justify-content:flex-end;margin-top:22px}
.form-tip{font-size:13px;color:var(--ok);margin-top:12px;display:none}
.form-tip.show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--bg-1);border-top:1px solid var(--line)}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(20,216,200,.6),transparent)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding:72px 0 44px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--text-2);max-width:320px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-tags span{font-size:12px;color:var(--text-3);border:1px solid var(--line);border-radius:var(--r-pill);padding:4px 11px}
.site-footer h4{font-size:15px;font-weight:600;margin-bottom:18px}
.footer-links{display:grid;gap:12px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
.footer-contact{display:grid;gap:14px;font-size:14px;color:var(--text-2)}
.footer-contact div{display:flex;align-items:center;gap:10px}
.footer-contact i{color:var(--brand)}
.qr-box{
  width:104px;height:104px;border-radius:var(--r-card);border:1px dashed var(--line);
  display:grid;place-items:center;text-align:center;font-size:12px;line-height:1.6;color:var(--text-3);
  background:var(--glass);
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero-inner{gap:36px}
  .split{gap:40px}
}
@media (max-width:991.98px){
  :root{--sec-y:72px}
  .sec{padding:72px 0}
  .nav-desktop{display:none}
  .nav-toggle{display:inline-flex}
  .hero{padding:64px 0 56px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .cta-band{padding:72px 0}
  .cta-wrap{grid-template-columns:1fr;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 36px}
  .timeline{grid-template-columns:repeat(2,1fr);gap:28px}
  .timeline::before{display:none}
  .timeline li{padding-top:0;padding-left:60px}
  .tl-num{box-shadow:none}
  .split{grid-template-columns:1fr;gap:28px}
  .split-rev .split-media{order:0}
  .split + .split{margin-top:56px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat{border-right:0;border-bottom:1px solid var(--line);padding:32px 20px}
  .stat:nth-child(odd){border-right:1px solid var(--line)}
  .stat:nth-last-child(-n+2){border-bottom:0}
}
@media (max-width:575.98px){
  :root{--head-h:64px}
  .container{padding:0 16px}
  .promo-inner{padding:0 16px;gap:10px}
  .promo-label{display:none}
  .promo-clock{font-size:13px}
  .promo-link{height:28px;padding:0 12px;font-size:12px}
  .brand-text{font-size:15px}
  .brand-mark{width:30px;height:30px;border-radius:9px}
  .hero h1{margin:16px 0 14px}
  .hero-actions{gap:10px}
  .btn-main,.btn-ghost{width:100%;height:46px}
  .glass-panel{padding:20px}
  .cta-wrap{padding:24px}
  .form-actions{justify-content:stretch}
  .form-actions .btn-main{width:100%}
  .timeline{grid-template-columns:1fr;gap:22px}
  .timeline li{padding-left:56px}
  .tl-num{width:40px;height:40px;font-size:14px}
  .stats-grid{grid-template-columns:1fr}
  .stat{border-right:0 !important;border-bottom:1px solid var(--line);padding:26px 16px}
  .stat:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --bg-0:#05090F;
  --bg-1:#0A1322;
  --bg-2:#101B30;
  --glass:rgba(255,255,255,.055);
  --line:rgba(122,176,255,.16);
  --line-top:rgba(255,255,255,.10);
  --brand:#14D8C8;
  --brand-2:#2B6EFF;
  --accent:#FF9A2E;
  --ok:#38D39F;
  --warn:#FFB020;
  --err:#FF5C6C;
  --t1:#E8F1FF;
  --t2:#9DB0C9;
  --t3:#6B7C93;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --r-input:12px;
  --r-img:14px;
  --shadow:0 18px 48px rgba(2,8,24,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"DIN Alternate","JetBrains Mono",Consolas,"Courier New",monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:15.5px;
  line-height:1.75;
  color:var(--t1);
  background:var(--bg-0);
  background-image:
    radial-gradient(900px 420px at 82% -120px, rgba(43,110,255,.16), transparent 62%),
    radial-gradient(700px 380px at 8% 12%, rgba(20,216,200,.08), transparent 60%),
    linear-gradient(180deg,#05090F 0%,#071019 45%,#05090F 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--brand)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--brand);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--brand),transparent)}
.section-head h2{font-size:clamp(22px,3vw,32px);margin-bottom:14px}
.section-head p{color:var(--t2);font-size:15.5px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- 顶部倒计时条 ---------- */
.topbar{
  position:sticky;top:0;z-index:60;
  min-height:44px;
  background:linear-gradient(90deg,rgba(255,154,46,.10),rgba(20,216,200,.07) 62%,rgba(20,216,200,.10));
  border-bottom:1px solid transparent;
  border-image:linear-gradient(90deg,rgba(255,154,46,.45),rgba(20,216,200,.4),rgba(43,110,255,.25)) 1;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:44px;padding-top:6px;padding-bottom:6px;
}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0}
.topbar-label{
  font-size:12.5px;color:var(--accent);font-weight:600;letter-spacing:.08em;
  padding:2px 10px;border:1px solid rgba(255,154,46,.35);border-radius:999px;
  background:rgba(255,154,46,.08);white-space:nowrap;
}
.countdown{display:flex;align-items:center;gap:6px;font-family:var(--mono);font-size:14px;color:var(--t1)}
.countdown b{font-weight:600;color:#fff}
.countdown span.sep{color:var(--t3)}
.topbar-btn{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;font-weight:600;color:#04191A;
  background:linear-gradient(135deg,var(--brand),#4ef0dd);
  border:none;border-radius:8px;padding:7px 14px;white-space:nowrap;
  box-shadow:0 6px 20px rgba(20,216,200,.28);
  transition:transform .22s var(--ease),filter .22s var(--ease);
}
.topbar-btn:hover{filter:brightness(1.08);transform:translateY(-1px)}
.topbar-btn:active{transform:translateY(0)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:44px;z-index:55;
  background:rgba(6,11,20,.72);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(5,9,15,.92);
  border-bottom-color:var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(20,216,200,.22),rgba(43,110,255,.24));
  border:1px solid rgba(20,216,200,.42);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14),0 6px 20px rgba(20,216,200,.18);
  position:relative;
}
.brand-mark span{
  width:14px;height:14px;border-radius:4px;
  background:linear-gradient(135deg,var(--brand),#6ff3e6);
  box-shadow:0 0 12px rgba(20,216,200,.75);
  transform:rotate(45deg);display:block;
}
.brand-text{font-size:16.5px;font-weight:700;letter-spacing:.4px;white-space:nowrap}
.nav-desktop{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;font-size:14.5px;color:var(--t2);padding:6px 0;font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),rgba(20,216,200,.25));
  transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
  opacity:0;
}
.nav-link:hover{color:var(--t1)}
.nav-link:hover::after{transform:scaleX(.4);opacity:.55}
.nav-link.active{color:var(--t1);font-weight:600}
.nav-link.active::after{
  transform:scaleX(1);opacity:1;
  box-shadow:0 0 12px rgba(20,216,200,.7);
}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:#04191A;
  background:linear-gradient(135deg,var(--brand),#4aead8);
  border-radius:10px;padding:10px 18px;white-space:nowrap;
  box-shadow:0 8px 28px rgba(20,216,200,.28),0 0 0 1px rgba(20,216,200,.45);
  transition:transform .22s var(--ease),filter .22s var(--ease);
}
.nav-cta:hover{filter:brightness(1.08);transform:translateY(-2px);color:#04191A}
.nav-cta:active{transform:translateY(-1px)}
.nav-toggle{
  display:none;width:46px;height:46px;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);border-radius:12px;color:var(--t1);font-size:17px;
  cursor:pointer;transition:border-color .22s var(--ease),color .22s var(--ease);
}
.nav-toggle:hover{border-color:rgba(20,216,200,.5);color:var(--brand)}
.nav-drawer{
  display:none;flex-direction:column;
  background:rgba(6,11,20,.96);
  backdrop-filter:blur(20px);
  border-top:1px solid var(--line);
  padding:8px 24px 20px;
}
.nav-drawer a{
  display:block;padding:15px 0 15px 14px;font-size:15px;color:var(--t2);
  border-bottom:1px solid rgba(122,176,255,.10);position:relative;
}
.nav-drawer a.active{color:var(--t1);font-weight:600}
.nav-drawer a.active::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--brand);box-shadow:0 0 10px rgba(20,216,200,.7);
}
.nav-drawer a.drawer-cta{
  margin-top:16px;text-align:center;border:1px solid rgba(20,216,200,.5);border-radius:10px;
  color:var(--brand);font-weight:600;
}
.nav-drawer.is-open{display:flex}

/* ---------- 通用按钮 ---------- */
.btn-rl{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-size:15px;font-weight:600;padding:13px 26px;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s var(--ease),filter .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.btn-primary-rl{
  color:#04191A;
  background:linear-gradient(135deg,var(--brand),#4aead8);
  box-shadow:0 8px 28px rgba(20,216,200,.28),0 0 0 1px rgba(20,216,200,.45);
}
.btn-primary-rl:hover{filter:brightness(1.08);transform:translateY(-2px);color:#04191A}
.btn-primary-rl:active{transform:translateY(-1px)}
.btn-ghost-rl{
  color:var(--brand);background:transparent;border-color:rgba(20,216,200,.38);
}
.btn-ghost-rl:hover{background:rgba(20,216,200,.08);border-color:rgba(20,216,200,.7);transform:translateY(-2px);color:var(--brand)}
.btn-ghost-rl:active{transform:translateY(-1px)}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--brand);
  border-bottom:1px solid rgba(20,216,200,.3);padding-bottom:2px;
}
.btn-text:hover{border-bottom-color:var(--brand);color:var(--brand)}

/* ---------- 标签胶囊 ---------- */
.pill{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--t2);
  padding:7px 15px;border-radius:999px;
  background:var(--glass);border:1px solid var(--line);
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.pill:hover{border-color:rgba(20,216,200,.45);color:var(--t1)}
.pill i{color:var(--brand);font-size:12px}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  padding:88px 0 76px;
  background-image:
    linear-gradient(180deg,rgba(5,9,15,.86),rgba(6,11,20,.94) 60%,var(--bg-0)),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover,cover;
  background-position:center,center;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(122,176,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(122,176,255,.055) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 72%);
}
.cat-hero-inner{position:relative;z-index:2;text-align:center;max-width:900px;margin:0 auto}
.crumbs{
  display:flex;align-items:center;justify-content:center;gap:10px;
  font-size:13px;color:var(--t3);margin-bottom:22px;flex-wrap:wrap;
}
.crumbs a{color:var(--t2)}
.crumbs i{font-size:10px}
.cat-hero h1{
  font-size:clamp(28px,4.2vw,46px);
  line-height:1.22;
  margin-bottom:20px;
}
.cat-hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--brand),#7ef4e8 65%,#9dc6ff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-hero .lead{color:var(--t2);font-size:16.5px;max-width:720px;margin:0 auto 26px}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ---------- 表格 ---------- */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  background:linear-gradient(180deg,rgba(16,27,48,.72),rgba(10,19,34,.62));
  box-shadow:var(--shadow),inset 0 1px 0 var(--line-top);
}
.table-scroll{overflow-x:auto}
table.rule-table{width:100%;border-collapse:collapse;min-width:780px}
table.rule-table caption{
  caption-side:top;text-align:left;padding:20px 24px 6px;
  font-size:13px;color:var(--t3);
}
table.rule-table thead th{
  background:linear-gradient(180deg,rgba(20,216,200,.16),rgba(20,216,200,.05));
  color:var(--t1);font-size:13.5px;font-weight:600;letter-spacing:.04em;
  text-align:left;padding:18px 20px;border-bottom:1px solid rgba(20,216,200,.28);
  white-space:nowrap;
}
table.rule-table tbody td{
  padding:17px 20px;font-size:14.5px;color:var(--t2);
  border-bottom:1px solid rgba(122,176,255,.10);
  vertical-align:top;
}
table.rule-table tbody tr:nth-child(odd){background:rgba(255,255,255,.028)}
table.rule-table tbody tr:hover{background:rgba(20,216,200,.06)}
table.rule-table tbody td:first-child{color:var(--t1);font-weight:600;white-space:nowrap}
.tag-ok{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;
  color:var(--ok);padding:3px 10px;border-radius:999px;
  background:rgba(56,211,159,.12);border:1px solid rgba(56,211,159,.32);
}
.tag-warn{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;
  color:var(--warn);padding:3px 10px;border-radius:999px;
  background:rgba(255,176,32,.12);border:1px solid rgba(255,176,32,.32);
}
.tag-err{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;
  color:var(--err);padding:3px 10px;border-radius:999px;
  background:rgba(255,92,108,.12);border:1px solid rgba(255,92,108,.32);
}
.table-note{
  display:flex;gap:10px;align-items:flex-start;
  margin-top:18px;font-size:13.5px;color:var(--t3);
}
.table-note i{color:var(--brand);margin-top:4px}

/* ---------- 竖版信息卡 ---------- */
.card-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.v-card{
  display:flex;flex-direction:column;
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  background:linear-gradient(180deg,rgba(16,27,48,.78),rgba(10,19,34,.6));
  box-shadow:var(--shadow),inset 0 1px 0 var(--line-top);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.v-card:hover{transform:translateY(-4px);border-color:rgba(20,216,200,.45)}
.v-card-media{
  position:relative;aspect-ratio:3/4;overflow:hidden;
  background:var(--bg-2);
}
.v-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.v-card:hover .v-card-media img{transform:scale(1.04)}
.v-card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,9,15,.05) 40%,rgba(5,9,15,.86));
}
.v-card-badge{
  position:absolute;top:14px;left:14px;z-index:2;
  font-size:12px;font-weight:600;color:var(--brand);
  padding:5px 12px;border-radius:999px;
  background:rgba(5,9,15,.66);border:1px solid rgba(20,216,200,.42);
  backdrop-filter:blur(8px);
}
.v-card-body{
  position:absolute;left:0;right:0;bottom:0;z-index:2;padding:20px;
}
.v-card-body h3{font-size:19px;margin-bottom:8px}
.v-card-body p{font-size:13.5px;color:var(--t2);line-height:1.65}
.v-card-list{padding:20px;border-top:1px solid rgba(122,176,255,.10)}
.v-card-list li{
  display:flex;gap:10px;font-size:14px;color:var(--t2);padding:8px 0;
  line-height:1.6;
}
.v-card-list li i{color:var(--brand);font-size:12px;margin-top:6px}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:340px 1fr;gap:40px;align-items:start}
.faq-side{
  border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;
  background:var(--glass);
  box-shadow:var(--shadow),inset 0 1px 0 var(--line-top);
}
.faq-side h3{font-size:18px;margin-bottom:12px}
.faq-side p{font-size:14px;color:var(--t2);margin-bottom:18px}
.faq-side .mini-stat{
  display:flex;align-items:baseline;gap:8px;padding:12px 0;
  border-top:1px solid rgba(122,176,255,.12);
}
.faq-side .mini-stat b{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:22px;color:var(--brand);font-weight:700;
}
.faq-side .mini-stat span{font-size:13.5px;color:var(--t3)}
.accordion.rl-accordion{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line)}
.rl-accordion .accordion-item{
  background:linear-gradient(180deg,rgba(16,27,48,.72),rgba(10,19,34,.58));
  border:none;border-bottom:1px solid rgba(122,176,255,.12);
}
.rl-accordion .accordion-item:last-child{border-bottom:none}
.rl-accordion .accordion-button{
  width:100%;background:transparent;border:none;box-shadow:none;
  color:var(--t1);font-size:15.5px;font-weight:600;text-align:left;
  padding:18px 20px;line-height:1.6;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  transition:color .22s var(--ease);
}
.rl-accordion .accordion-button:not(.collapsed){color:var(--brand)}
.rl-accordion .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:-2px}
.rl-accordion .accordion-button::after{
  content:"+";flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:8px;font-size:16px;font-weight:700;
  color:var(--brand);background:rgba(20,216,200,.10);
  border:1px solid rgba(20,216,200,.32);
  background-image:none;
  transition:transform .24s var(--ease),background .24s var(--ease);
  order:2;margin-left:16px;
}
.rl-accordion .accordion-button:not(.collapsed)::after{
  content:"−";transform:rotate(180deg);background:rgba(20,216,200,.2);
}
.rl-accordion .accordion-body{
  padding:0 20px 20px;font-size:14.5px;color:var(--t2);
  border-top:1px solid rgba(122,176,255,.10);
  padding-top:16px;
}

/* ---------- CTA + 表单 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:52px 44px;
  background:
    linear-gradient(120deg,rgba(20,216,200,.12),rgba(43,110,255,.10) 58%,rgba(255,154,46,.08)),
    linear-gradient(180deg,rgba(16,27,48,.9),rgba(8,15,26,.92));
  box-shadow:var(--shadow),inset 0 1px 0 var(--line-top);
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,216,200,.22),transparent 70%);
  pointer-events:none;
}
.cta-grid{display:grid;grid-template-columns:1fr 400px;gap:44px;align-items:center;position:relative;z-index:2}
.cta-copy h2{font-size:clamp(22px,3vw,32px);margin-bottom:14px}
.cta-copy p{color:var(--t2);font-size:15.5px;margin-bottom:22px}
.cta-points{display:flex;flex-wrap:wrap;gap:10px}
.form-card{
  border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;
  background:rgba(5,9,15,.55);
  backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 var(--line-top);
}
.form-card h3{font-size:17px;margin-bottom:18px}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:13px;color:var(--t2);margin-bottom:12px;font-weight:500}
.form-control-rl{
  width:100%;padding:12px 14px;font-size:14.5px;color:var(--t1);
  background:#0F1A2C;border:1px solid var(--line);border-radius:var(--r-input);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.form-control-rl::placeholder{color:var(--t3)}
.form-control-rl:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(20,216,200,.16);
}
.form-control-rl.is-error{border-color:var(--err);box-shadow:0 0 0 3px rgba(255,92,108,.14)}
.field-hint{font-size:12px;color:var(--err);margin-top:8px;display:none}
.field-hint.show{display:block}
.form-check{
  display:flex;gap:10px;align-items:flex-start;font-size:12.5px;color:var(--t3);
  margin:18px 0 20px;line-height:1.6;
}
.form-check input{
  margin-top:3px;width:16px;height:16px;accent-color:var(--brand);flex:0 0 auto;
}
.form-submit{width:220px;margin-left:auto;display:flex}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,rgba(20,216,200,.45),rgba(43,110,255,.28),rgba(255,154,46,.3)) 1;
  background:linear-gradient(180deg,rgba(10,19,34,.72),rgba(5,9,15,.96));
  padding-top:64px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand{display:inline-flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--t2);max-width:330px;margin-bottom:18px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-tags span{
  font-size:12px;color:var(--t3);padding:5px 11px;border-radius:999px;
  background:var(--glass);border:1px solid var(--line);
}
.site-footer h4{font-size:15px;margin-bottom:18px;color:var(--t1)}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:var(--t2)}
.footer-links a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
.footer-contact{display:flex;flex-direction:column;gap:14px;font-size:14px;color:var(--t2)}
.footer-contact div{display:flex;gap:10px;align-items:center}
.footer-contact i{color:var(--brand);width:16px;text-align:center}
.qr-box{
  width:118px;height:118px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:12.5px;color:var(--t3);line-height:1.6;
  background:var(--glass);border:1px dashed var(--line);
}
.footer-bottom{
  margin-top:52px;padding:22px 0 26px;
  border-top:1px solid rgba(122,176,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--t3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .nav-desktop{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:72px 0}
  .cat-hero{padding:64px 0 58px}
  .card-grid-3{grid-template-columns:1fr 1fr}
  .cta-band{padding:40px 28px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .site-header{top:40px}
  .topbar{min-height:40px}
  .topbar-inner{min-height:40px}
  .topbar-label{display:none}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .card-grid-3{grid-template-columns:1fr}
  .cta-band{padding:32px 20px}
  .form-submit{width:100%;margin-left:0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
  .cat-hero h1{font-size:clamp(24px,7vw,34px)}
}
@media (max-width:520px){
  .brand-text{font-size:15px}
  .countdown{font-size:12.5px;gap:4px}
  .topbar-btn{padding:6px 11px;font-size:12px}
  .pill{font-size:12px;padding:6px 12px}
  .hero-actions .btn-rl{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .v-card:hover{transform:none}
  .v-card:hover .v-card-media img{transform:none}
}

/* roulang page: category4 */
:root{
  --bg-0:#05090F;
  --bg-1:#0A1322;
  --bg-2:#101B30;
  --glass:rgba(255,255,255,0.055);
  --line:rgba(122,176,255,0.16);
  --line-top:rgba(255,255,255,0.10);
  --brand:#14D8C8;
  --brand-2:#2B6EFF;
  --accent:#FF9A2E;
  --ok:#38D39F;
  --warn:#FFB020;
  --err:#FF5C6C;
  --text:#E8F1FF;
  --muted:#9DB0C9;
  --dim:#6B7C93;
  --r-card:16px;
  --r-big:20px;
  --r-btn:10px;
  --r-input:12px;
  --r-pill:999px;
  --shadow-card:0 18px 48px rgba(2,8,24,0.55);
  --shadow-glow:0 8px 28px rgba(20,216,200,0.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --mono:"DIN Alternate","JetBrains Mono",Consolas,monospace;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:14px}
a{color:var(--brand);text-decoration:none}
a:hover{color:#5DF0E2}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,11,20,0.72);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(5,9,15,0.92);
  border-bottom-color:var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  background:linear-gradient(140deg,rgba(20,216,200,.28),rgba(43,110,255,.30));
  border:1px solid rgba(20,216,200,.45);
  box-shadow:inset 0 1px 0 var(--line-top),0 6px 18px rgba(20,216,200,.18);
  display:flex;align-items:center;justify-content:center;
}
.brand-mark>span{
  width:12px;height:12px;border-radius:4px;display:block;
  background:var(--brand);
  box-shadow:0 0 12px rgba(20,216,200,.9);
  transform:rotate(45deg);
}
.brand-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:.4px;white-space:nowrap}
.nav-desktop{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;
  color:var(--muted);
  font-size:15px;
  padding:6px 0;
  transition:color .22s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--brand);border-radius:2px;
  box-shadow:0 0 10px rgba(20,216,200,.75);
  transition:width .24s var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{width:40%}
.nav-link.active{color:var(--text)}
.nav-link.active::after{width:100%}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:var(--r-btn);
  background:var(--brand);color:#04231F;font-weight:700;font-size:14px;
  box-shadow:var(--shadow-glow),0 0 0 1px rgba(20,216,200,.45);
  transition:transform .22s var(--ease),filter .22s var(--ease);
}
.nav-cta:hover{color:#04231F;filter:brightness(1.08);transform:translateY(-2px)}
.nav-cta:active{transform:translateY(1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line);color:var(--text);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-drawer{display:none}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;
  padding:88px 0 76px;
  background:
    linear-gradient(180deg,rgba(5,9,15,.62) 0%,rgba(5,9,15,.90) 62%,var(--bg-0) 100%),
    url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 88% 18%,rgba(20,216,200,.14),transparent 42%),
             radial-gradient(circle at 6% 84%,rgba(43,110,255,.12),transparent 46%);
}
.cat-hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(20,216,200,.10);
  border:1px solid rgba(20,216,200,.32);
  color:var(--brand);font-size:13px;font-weight:600;letter-spacing:.4px;
}
.eyebrow i{font-size:12px}
.cat-hero h1{
  margin:20px 0 16px;
  font-size:clamp(28px,4.2vw,46px);
  line-height:1.22;
}
.cat-hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{color:var(--muted);font-size:16px;max-width:560px}
.hero-points{margin-top:26px;display:grid;gap:12px}
.hero-point{
  display:flex;align-items:flex-start;gap:12px;
  padding:12px 16px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
}
.hero-point i{color:var(--brand);margin-top:4px}
.hero-point span{font-size:14.5px;color:var(--text)}
.hero-actions{margin-top:28px;display:flex;gap:14px;flex-wrap:wrap}
.btn-primary-main{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 24px;border-radius:var(--r-btn);
  background:var(--brand);color:#04231F;font-weight:700;font-size:15px;border:0;
  box-shadow:var(--shadow-glow),0 0 0 1px rgba(20,216,200,.45);
  transition:transform .22s var(--ease),filter .22s var(--ease);
}
.btn-primary-main:hover{color:#04231F;filter:brightness(1.08);transform:translateY(-2px)}
.btn-primary-main:active{transform:translateY(1px)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;
  padding:12px 22px;border-radius:var(--r-btn);
  background:transparent;color:var(--brand);font-weight:600;font-size:15px;
  border:1px solid rgba(20,216,200,.42);
  transition:background .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
}
.btn-ghost:hover{background:rgba(20,216,200,.10);border-color:var(--brand);transform:translateY(-2px);color:var(--brand)}
.hero-visual{
  position:relative;
  border-radius:var(--r-big);
  padding:14px;
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card),inset 0 1px 0 var(--line-top);
  backdrop-filter:blur(16px) saturate(140%);
}
.hero-visual .ratio{position:relative;border-radius:14px;overflow:hidden;aspect-ratio:4/3}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual figcaption{
  margin-top:12px;font-size:13px;color:var(--dim);display:flex;align-items:center;gap:8px;
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head .tag{
  display:inline-block;padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(20,216,200,.10);border:1px solid rgba(20,216,200,.28);
  color:var(--brand);font-size:12.5px;font-weight:600;letter-spacing:.5px;
}
.section-head h2{margin:16px 0 12px;font-size:clamp(22px,3vw,32px)}
.section-head p{color:var(--muted);font-size:15.5px}

/* ---------- 问答面板 ---------- */
.faq-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:44px;align-items:start}
.faq-aside{
  position:sticky;top:96px;
  padding:26px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow-card),inset 0 1px 0 var(--line-top);
  backdrop-filter:blur(16px) saturate(140%);
}
.faq-aside h2{font-size:22px;margin-bottom:12px}
.faq-aside p{color:var(--muted);font-size:14.5px}
.faq-chips{margin-top:18px;display:flex;flex-wrap:wrap;gap:10px}
.faq-chips span{
  padding:6px 13px;border-radius:var(--r-pill);font-size:13px;
  background:rgba(43,110,255,.10);border:1px solid rgba(122,176,255,.24);color:var(--muted);
}
.faq-list{display:grid;gap:14px}
.faq-item{
  border-radius:var(--r-card);
  background:var(--bg-2);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:border-color .24s var(--ease),transform .24s var(--ease);
  overflow:hidden;
}
.faq-item:hover{border-color:rgba(20,216,200,.42)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 20px;font-weight:600;font-size:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 26px;height:26px;line-height:24px;text-align:center;
  border-radius:50%;border:1px solid rgba(20,216,200,.42);color:var(--brand);
  font-size:16px;font-weight:400;
  transition:transform .24s var(--ease);
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg)}
.faq-body{
  padding:0 20px 20px;border-top:1px solid var(--line);
  color:var(--muted);font-size:14.8px;line-height:1.8;
}
.faq-body p{margin-top:16px}
.faq-body ul{margin-top:14px;display:grid;gap:9px}
.faq-body li{display:flex;gap:10px;align-items:flex-start}
.faq-body li i{color:var(--brand);margin-top:5px;font-size:11px}

/* ---------- 图墙 ---------- */
.wall{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.wall-card{
  position:relative;border-radius:var(--r-big);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-2);
  box-shadow:var(--shadow-card);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.wall-card:hover{transform:translateY(-4px);border-color:rgba(20,216,200,.55)}
.wall-media{aspect-ratio:4/3;overflow:hidden}
.wall-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s var(--ease)}
.wall-card:hover .wall-media img{transform:scale(1.04)}
.wall-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  padding:4px 11px;border-radius:var(--r-pill);font-size:12px;font-weight:600;
  background:rgba(5,9,15,.72);border:1px solid rgba(20,216,200,.4);color:var(--brand);
  backdrop-filter:blur(8px);
}
.wall-body{padding:16px 18px 18px}
.wall-body h3{font-size:17px;margin-bottom:6px}
.wall-body p{color:var(--dim);font-size:13.5px;line-height:1.65}

/* ---------- 引用说明段 ---------- */
.quote-block{
  position:relative;
  padding:46px 44px 46px 84px;
  border-radius:var(--r-big);
  background:linear-gradient(135deg,rgba(20,216,200,.08),rgba(43,110,255,.08));
  border:1px solid var(--line);
  box-shadow:var(--shadow-card),inset 0 1px 0 var(--line-top);
}
.quote-block::before{
  content:"\201C";
  position:absolute;left:28px;top:26px;
  font-size:76px;line-height:1;color:rgba(20,216,200,.42);
  font-family:Georgia,serif;
}
.quote-block p{font-size:17px;line-height:1.9;color:var(--text)}
.quote-block .quote-foot{
  margin-top:20px;display:flex;flex-wrap:wrap;gap:12px 22px;
  color:var(--muted);font-size:13.5px;
}
.quote-block .quote-foot span{display:inline-flex;align-items:center;gap:8px}
.quote-block .quote-foot i{color:var(--brand)}

/* ---------- CTA + 表单 ---------- */
.cta-wrap{
  border-radius:var(--r-big);
  padding:44px;
  background:
    linear-gradient(135deg,rgba(20,216,200,.12),rgba(43,110,255,.10)),
    var(--bg-2);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card),inset 0 1px 0 var(--line-top);
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;
}
.cta-copy h2{font-size:clamp(22px,3vw,30px);margin-bottom:14px}
.cta-copy p{color:var(--muted);font-size:15.5px}
.cta-notes{margin-top:22px;display:grid;gap:12px}
.cta-notes div{display:flex;gap:11px;align-items:flex-start;color:var(--muted);font-size:14.5px}
.cta-notes i{color:var(--brand);margin-top:4px}
.join-form{display:grid;gap:16px}
.field{display:grid;gap:8px}
.field label{font-size:13.5px;color:var(--muted)}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--r-input);
  background:#0F1A2C;border:1px solid var(--line);color:var(--text);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.field textarea{min-height:96px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(20,216,200,.16);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.check-line{display:flex;gap:10px;align-items:flex-start;color:var(--dim);font-size:12.8px;line-height:1.6}
.check-line input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand)}
.form-submit{display:flex;justify-content:flex-end}
.form-submit .btn-primary-main{min-width:220px;justify-content:center}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:0;padding:72px 0 26px;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(20,216,200,.7),rgba(43,110,255,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-desc{color:var(--muted);font-size:13.8px;line-height:1.75;max-width:340px}
.footer-tags{margin-top:16px;display:flex;flex-wrap:wrap;gap:9px}
.footer-tags span{
  padding:5px 12px;border-radius:var(--r-pill);font-size:12.5px;
  background:var(--glass);border:1px solid var(--line);color:var(--muted);
}
.site-footer h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-links{display:grid;gap:11px}
.footer-links a{color:var(--muted);font-size:14px;transition:color .2s var(--ease)}
.footer-links a:hover{color:var(--brand);text-decoration:underline}
.footer-contact{display:grid;gap:12px}
.footer-contact div{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13.8px}
.footer-contact i{color:var(--brand)}
.qr-box{
  width:96px;height:96px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:12px;color:var(--dim);line-height:1.5;
  background:var(--glass);border:1px dashed var(--line);
}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .cat-hero-inner{gap:36px}
  .faq-layout{gap:32px}
  .cta-wrap{gap:32px;padding:36px}
}
@media (max-width:991px){
  .nav-desktop{display:none}
  .nav-toggle{display:inline-flex}
  .nav-drawer{
    display:none;flex-direction:column;
    position:absolute;left:0;right:0;top:72px;
    background:rgba(6,11,20,.96);
    backdrop-filter:blur(18px) saturate(140%);
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    padding:8px 0 16px;
  }
  .nav-drawer.is-open{display:flex}
  .nav-drawer a{
    display:flex;align-items:center;min-height:52px;padding:0 24px;
    color:var(--muted);font-size:15px;border-bottom:1px solid var(--line);
  }
  .nav-drawer a.active{color:var(--text);border-left:3px solid var(--brand);padding-left:21px}
  .nav-drawer a.drawer-cta{color:var(--brand);font-weight:700;border-bottom:0}
  .cat-hero{padding:64px 0 56px}
  .cat-hero-inner{grid-template-columns:1fr}
  .section{padding:72px 0}
  .faq-layout{grid-template-columns:1fr}
  .faq-aside{position:static}
  .wall{grid-template-columns:repeat(2,1fr)}
  .cta-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:575px){
  .container{padding:0 16px}
  body{font-size:15.5px}
  .cat-hero{padding:48px 0 44px}
  .section{padding:56px 0}
  .hero-actions{gap:12px}
  .btn-primary-main,.btn-ghost{width:100%;justify-content:center}
  .wall{grid-template-columns:1fr}
  .quote-block{padding:34px 20px 34px 20px}
  .quote-block::before{position:static;display:block;font-size:52px;margin-bottom:6px}
  .cta-wrap{padding:26px 18px}
  .form-row{grid-template-columns:1fr}
  .form-submit{justify-content:stretch}
  .form-submit .btn-primary-main{width:100%;min-width:0}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}