/* roulang page: index */
:root{
  --bg:#07101A;
  --panel:#0C1826;
  --panel-2:#101F30;
  --line:rgba(120,200,220,.14);
  --line-2:rgba(140,225,240,.16);
  --line-3:rgba(140,225,240,.32);
  --text:#E6EEF5;
  --text-2:#9FB2C4;
  --text-3:#6B7F94;
  --primary:#2EE6C8;
  --primary-dark:#17A894;
  --indigo:#6C7CFF;
  --coral:#FF6B5E;
  --success:#4ADE80;
  --warn:#F5B544;
  --r-sm:10px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --shadow-glow:0 8px 24px rgba(46,230,200,.28);
  --shadow-glow-hover:0 10px 30px rgba(46,230,200,.38);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:0;font-weight:700;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:rgba(46,230,200,.3);color:#fff;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:rgba(120,200,220,.22);border-radius:8px;}

.bg-grid{
  position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(120,200,220,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,200,220,.045) 1px,transparent 1px);
  background-size:64px 64px;
}
.container{max-width:1200px;margin:0 auto;padding:0 32px;}

/* ============ 侧边栏 ============ */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:248px;z-index:60;
  display:flex;flex-direction:column;gap:18px;
  padding:26px 16px 22px;
  background:linear-gradient(180deg,#0A1520 0%,#07101A 100%);
  border-right:1px solid var(--line);
  overflow-y:auto;
}
.brand{display:flex;flex-direction:column;gap:2px;padding:0 10px;}
.brand-main{font-size:20px;font-weight:800;color:#fff;letter-spacing:.01em;line-height:1.2;}
.brand-sub{font-size:12px;letter-spacing:.22em;color:var(--primary);font-weight:600;}
.brand-desc{margin:8px 0 0;font-size:12px;color:var(--text-3);line-height:1.5;}

.nav-list{display:flex;flex-direction:column;gap:4px;margin-top:6px;}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 14px;border-radius:10px;
  font-size:16px;color:var(--text-2);
  transition:background 160ms ease,color 160ms ease;
}
.nav-item i{font-size:15px;width:18px;text-align:center;flex:none;}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff;}
.nav-item.active{background:rgba(46,230,200,.12);color:#fff;}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 2px 2px 0;background:var(--primary);
  box-shadow:0 0 12px rgba(46,230,200,.6);
}
.nav-item:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

.nav-status{
  margin-top:auto;padding:12px;border-radius:14px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-2);
}
.nav-status img{width:100%;height:56px;object-fit:cover;border-radius:8px;margin-bottom:10px;}
.nav-status p{margin:0 0 10px;font-size:12px;color:var(--text-3);line-height:1.6;}
.nav-status .btn{width:100%;}

/* ============ 移动端顶部栏 ============ */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:80;
  align-items:center;justify-content:space-between;
  padding:0 18px;
  background:rgba(10,21,32,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
}
.mobile-brand{font-size:16px;font-weight:800;color:#fff;display:flex;align-items:baseline;gap:6px;}
.mobile-brand span{font-size:11px;letter-spacing:.18em;color:var(--primary);font-weight:600;}
.burger{
  width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.06);border:1px solid var(--line-2);color:var(--text);
  font-size:16px;cursor:pointer;transition:160ms;
}
.burger:hover{background:rgba(46,230,200,.14);border-color:rgba(46,230,200,.4);}
.nav-mask{
  display:none;position:fixed;inset:0;z-index:55;background:rgba(4,10,18,.72);
  opacity:0;transition:opacity .25s ease;
}
.nav-mask.show{display:block;opacity:1;}

/* ============ 主区域 ============ */
.shell{margin-left:248px;position:relative;z-index:1;}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:40px;
}
.section-head h2{
  font-size:28px;color:#fff;position:relative;padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:3px;background:var(--primary);
  box-shadow:0 0 14px rgba(46,230,200,.55);
}
.section-head .sub{margin:8px 0 0;font-size:14px;color:var(--text-3);padding-left:16px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;
  color:var(--primary);transition:color 160ms ease;white-space:nowrap;
}
.text-link i{transition:transform 160ms ease;font-size:12px;}
.text-link:hover{text-decoration:underline;text-underline-offset:4px;}
.text-link:hover i{transform:translateX(4px);}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  min-height:88vh;display:flex;align-items:center;
  padding:56px 0 64px;
  background-image:linear-gradient(rgba(7,16,26,.82),rgba(7,16,26,.94)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;right:-140px;bottom:-200px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,230,200,.18),transparent 68%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:48px;align-items:center;width:100%;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;color:var(--primary);
  padding:6px 14px;border-radius:999px;
  background:rgba(46,230,200,.1);border:1px solid rgba(46,230,200,.28);
  margin-bottom:22px;
}
.hero h1{
  font-size:40px;line-height:1.28;color:#fff;letter-spacing:-0.01em;
  max-width:15em;
}
.hero-sub{margin:20px 0 0;font-size:17px;color:var(--text-2);line-height:1.8;max-width:32em;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:0;margin:24px 0 0;
  font-size:14px;color:var(--text-3);
}
.hero-meta li{display:flex;align-items:center;}
.hero-meta li+li::before{content:"";width:1px;height:12px;background:var(--line-3);margin:0 14px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}

.hero-panel{
  padding:26px;border-radius:var(--r-xl);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-2);
  backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  position:relative;
}
.hero-panel::before{
  content:"";position:absolute;inset:0;border-radius:var(--r-xl);pointer-events:none;
  background-image:linear-gradient(rgba(140,225,240,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(140,225,240,.05) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.55;
}
.panel-head{
  display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2);
  margin-bottom:18px;position:relative;z-index:1;
}
.dot-pulse{
  width:8px;height:8px;border-radius:50%;background:var(--coral);flex:none;
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,107,94,.6);}
  70%{box-shadow:0 0 0 10px rgba(255,107,94,0);}
  100%{box-shadow:0 0 0 0 rgba(255,107,94,0);}
}
.countdown{display:flex;gap:10px;position:relative;z-index:1;}
.cd-box{
  width:72px;height:80px;border-radius:12px;flex:none;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-2);
}
.cd-box b{
  font-family:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace,monospace;
  font-size:36px;font-weight:600;color:var(--primary);line-height:1;font-variant-numeric:tabular-nums;
}
.cd-box small{font-size:12px;color:var(--text-3);margin-top:6px;}
.panel-note{
  margin:18px 0 0;font-size:14px;color:var(--text-2);line-height:1.7;position:relative;z-index:1;
}
.panel-time{
  margin:8px 0 0;font-size:12px;color:var(--text-3);position:relative;z-index:1;
  font-family:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace,monospace;
  font-variant-numeric:tabular-nums;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:12px;font-size:16px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background 160ms ease,border-color 160ms ease,box-shadow 160ms ease,transform 160ms ease,filter 160ms ease;
}
.btn-primary{
  background:linear-gradient(135deg,#2EE6C8,#33D6C0);
  color:#04161A;
  box-shadow:0 8px 24px rgba(46,230,200,.28);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 10px 30px rgba(46,230,200,.38);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(46,230,200,.22);}
.btn-ghost{background:transparent;border-color:rgba(140,225,240,.3);color:var(--text);}
.btn-ghost:hover{border-color:rgba(46,230,200,.6);background:rgba(46,230,200,.08);}
.btn:focus-visible{outline:2px solid #E6EEF5;outline-offset:2px;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn[disabled],.btn.disabled{opacity:.4;cursor:not-allowed;transform:none!important;box-shadow:none!important;}

/* ============ 数据条 ============ */
.stats-strip{
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,24,38,.75),rgba(7,16,26,0));
}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  padding:32px 0;
}
.stat-item{display:flex;flex-direction:column;gap:4px;padding-left:18px;border-left:1px solid var(--line-2);}
.stat-item b{
  font-family:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace,monospace;
  font-size:26px;font-weight:600;color:#fff;line-height:1.2;font-variant-numeric:tabular-nums;
}
.stat-item span{font-size:13px;color:var(--text-3);}

/* ============ 直播预告条 ============ */
.slot-list{display:flex;flex-direction:column;gap:22px;}
.slot-card{
  display:grid;grid-template-columns:42% 38% 20%;gap:24px;
  padding:24px;border-radius:var(--r-xl);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-2);
  backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform 200ms ease,border-color 200ms ease,background 200ms ease,box-shadow 200ms ease;
}
.slot-card:hover{
  transform:translateY(-2px);
  border-color:rgba(46,230,200,.35);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 0 0 1px rgba(46,230,200,.28),0 12px 30px rgba(46,230,200,.18);
}
.slot-card.is-featured{
  background:linear-gradient(120deg,rgba(46,230,200,.09),rgba(255,255,255,.05) 46%);
  border-left:4px solid var(--primary);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 0 26px rgba(46,230,200,.12);
}
.slot-cover{position:relative;border-radius:14px;overflow:hidden;align-self:start;}
.slot-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:14px;}
.slot-cover::after{
  content:"";position:absolute;inset:auto 0 0 0;height:45%;
  background:linear-gradient(180deg,transparent,rgba(7,16,26,.6));
  border-radius:0 0 14px 14px;pointer-events:none;
}
.slot-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.slot-badge.live{background:var(--coral);color:#1A0705;}
.slot-badge.live::before{
  content:"";width:6px;height:6px;border-radius:50%;background:#1A0705;
  animation:pulse 2s infinite;
}
.slot-badge.upcoming{background:var(--primary);color:#04161A;}
.slot-badge.replay{background:rgba(90,107,128,.9);color:#E6EEF5;}
.slot-body h3{font-size:17px;color:#fff;margin-bottom:10px;}
.slot-points li{
  position:relative;padding-left:34px;font-size:14px;color:var(--text-2);
  line-height:1.9;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.slot-points li span{
  position:absolute;left:0;top:0;
  font-family:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace,monospace;
  font-size:12px;color:var(--primary);font-weight:600;
}
.slot-side{display:flex;flex-direction:column;align-items:flex-start;gap:12px;justify-content:center;}
.mini-count{display:flex;gap:6px;}
.mini-count div{
  min-width:44px;padding:4px 8px;border-radius:8px;text-align:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line-2);
}
.mini-count b{
  display:block;font-family:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace,monospace;
  font-size:22px;color:var(--primary);line-height:1.15;font-variant-numeric:tabular-nums;
}
.mini-count small{font-size:11px;color:var(--text-3);}
.link-disabled{
  font-size:14px;color:var(--text-3);opacity:.4;cursor:not-allowed;
}
.link-disabled small{display:block;font-size:12px;}
.slot-card.compact{grid-template-columns:220px 1fr auto;align-items:center;}
.slot-card.compact .slot-cover img{aspect-ratio:16/10;}

/* ============ 最新信息 ============ */
.cms-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.cms-card{
  display:flex;flex-direction:column;gap:10px;
  padding:20px;border-radius:var(--r-lg);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-2);
  transition:transform 200ms ease,border-color 200ms ease,background 200ms ease;
}
.cms-card:hover{
  transform:translateY(-2px);
  border-color:var(--line-3);
  background:rgba(255,255,255,.07);
}
.cms-card:hover .cms-title{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
.cms-badge{
  align-self:flex-start;
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;color:var(--indigo);
  border:1px solid rgba(108,124,255,.5);
  background:rgba(108,124,255,.08);
}
.cms-title{
  font-size:17px;color:#fff;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color 160ms ease;
}
.cms-desc{
  margin:0;font-size:14px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-time{
  font-size:14px;color:var(--text-3);
  font-family:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace,monospace;
  font-variant-numeric:tabular-nums;
}
.cms-empty{
  grid-column:1/-1;min-height:200px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border-radius:var(--r-lg);border:1px dashed var(--line-2);
  background:rgba(255,255,255,.02);
  text-align:center;padding:32px;
}
.cms-empty i{font-size:40px;color:rgba(46,230,200,.4);}
.cms-empty p{margin:0;font-size:15px;color:var(--text-2);}

/* ============ 分类入口 ============ */
.cat-grid{display:grid;grid-template-columns:1.05fr 1.35fr;gap:22px;align-items:stretch;}
.cat-hero{
  position:relative;display:flex;flex-direction:column;justify-content:flex-end;
  padding:28px;border-radius:var(--r-xl);overflow:hidden;min-height:280px;
  border:1px solid var(--line-2);
  background:linear-gradient(160deg,rgba(46,230,200,.14),rgba(12,24,38,.9) 62%);
  transition:transform 200ms ease,border-color 200ms ease;
}
.cat-hero::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:4px;border-radius:3px;
  background:var(--primary);box-shadow:0 0 16px rgba(46,230,200,.6);
}
.cat-hero:hover{transform:translateY(-2px);border-color:rgba(46,230,200,.4);}
.cat-hero img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.22;
}
.cat-hero .inner{position:relative;z-index:1;}
.cat-icons{display:flex;gap:10px;margin-bottom:18px;}
.cat-icons span{
  width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(46,230,200,.14);border:1px solid rgba(46,230,200,.3);color:var(--primary);font-size:14px;
}
.cat-hero h3{font-size:20px;color:#fff;margin-bottom:8px;}
.cat-hero p{margin:0 0 16px;font-size:14px;color:var(--text-2);line-height:1.7;}
.cat-mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.cat-mini{
  display:flex;flex-direction:column;gap:8px;
  padding:22px;border-radius:var(--r-lg);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-2);
  transition:transform 200ms ease,border-color 200ms ease,background 200ms ease;
}
.cat-mini:hover{transform:translateY(-2px);border-color:var(--line-3);background:rgba(255,255,255,.07);}
.cat-mini i.ico{font-size:24px;color:var(--primary);}
.cat-mini h3{font-size:17px;color:#fff;}
.cat-mini p{margin:0;font-size:13px;color:var(--text-3);line-height:1.7;}
.cat-mini .arrow{
  margin-top:auto;align-self:flex-end;color:var(--text-3);font-size:13px;transition:transform 200ms ease,color 200ms ease;
}
.cat-mini:hover .arrow{transform:translateX(4px);color:var(--primary);}

/* ============ 流程 ============ */
.flow-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.flow-card{
  position:relative;padding:26px;border-radius:var(--r-lg);
  background:rgba(255,255,255,.04);border:1px solid var(--line-2);
  transition:border-color 200ms ease,transform 200ms ease;
}
.flow-card:hover{border-color:var(--line-3);transform:translateY(-2px);}
.flow-num{
  font-family:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace,monospace;
  font-size:32px;font-weight:600;color:rgba(46,230,200,.35);line-height:1;margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.flow-card h3{font-size:18px;color:#fff;margin-bottom:8px;}
.flow-card p{margin:0;font-size:14px;color:var(--text-2);line-height:1.8;}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:32% 1fr;gap:40px;align-items:start;}
.faq-intro h2{font-size:28px;color:#fff;margin-bottom:12px;position:relative;padding-left:16px;}
.faq-intro h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;
  background:var(--primary);box-shadow:0 0 14px rgba(46,230,200,.55);
}
.faq-intro p{font-size:14px;color:var(--text-3);line-height:1.8;margin:0 0 20px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:12px 4px;
  font-size:16px;color:#fff;cursor:pointer;list-style:none;
  transition:color 160ms ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-item summary .sign{
  flex:none;width:22px;height:22px;border-radius:6px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-2);color:var(--primary);font-size:12px;
  transition:transform 220ms ease,background 220ms ease;
}
.faq-item[open] summary .sign{transform:rotate(180deg);background:rgba(46,230,200,.14);}
.faq-item .answer{padding:0 4px 20px;font-size:15px;color:var(--text-2);line-height:1.8;}

/* ============ 订阅区 ============ */
.subscribe{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  padding:40px;border-radius:var(--r-xl);
  background:linear-gradient(120deg,rgba(46,230,200,.1),rgba(255,255,255,.04) 55%,rgba(108,124,255,.08));
  border:1px solid var(--line-2);
  backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.subscribe h2{font-size:28px;color:#fff;margin-bottom:10px;}
.subscribe p{margin:0 0 10px;font-size:15px;color:var(--text-2);line-height:1.8;}
.privacy-note{font-size:12px;color:var(--text-3);margin:0;}
.form-field{display:flex;flex-direction:column;gap:8px;}
.form-row{display:flex;gap:12px;}
.form-input{
  flex:1;height:48px;padding:0 16px;border-radius:12px;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line-2);
  color:var(--text);font-size:15px;outline:none;
  transition:border-color 160ms ease,box-shadow 160ms ease,background 160ms ease;
}
.form-input::placeholder{color:rgba(107,127,148,.8);}
.form-input:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(46,230,200,.2);
  background:rgba(255,255,255,.08);
}
.form-hint{min-height:20px;font-size:14px;color:var(--text-3);}
.form-hint.error{color:var(--coral);}
.form-hint.ok{color:var(--success);}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:#060E17;padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand-main{font-size:18px;}
.footer-brand p{margin:12px 0 14px;font-size:13px;color:var(--text-3);line-height:1.8;max-width:26em;}
.footer-brand img{width:80px;height:48px;object-fit:cover;border-radius:8px;border:1px solid var(--line-2);}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13px;color:var(--text-3);transition:color 160ms ease;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:44px;padding:20px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .hero h1{font-size:34px;}
  .cat-grid{grid-template-columns:1fr;}
  .cat-hero{min-height:220px;}
}
@media (max-width:1279px) and (min-width:1024px){
  .side-nav{width:88px;padding:22px 10px;align-items:center;}
  .brand{padding:0;align-items:center;}
  .brand-main{font-size:13px;line-height:1.2;text-align:center;word-break:break-all;max-width:64px;}
  .brand-sub,.brand-desc,.nav-item span,.nav-status p,.nav-status .btn{display:none;}
  .nav-item{justify-content:center;padding:0;width:48px;height:48px;}
  .nav-item.active::before{top:12px;bottom:12px;}
  .nav-status{padding:6px;border-radius:12px;}
  .nav-status img{width:56px;height:44px;margin:0;}
  .shell{margin-left:88px;}
  .nav-item::after{
    content:attr(data-label);
    position:absolute;left:60px;top:50%;transform:translateY(-50%);
    padding:6px 12px;border-radius:8px;white-space:nowrap;
    background:rgba(12,24,38,.96);border:1px solid var(--line-2);
    color:#fff;font-size:12px;opacity:0;pointer-events:none;transition:opacity 160ms ease;
  }
  .nav-item:hover::after{opacity:1;}
}
@media (max-width:1023px){
  .mobile-bar{display:flex;}
  .side-nav{
    width:280px;transform:translateX(-100%);
    transition:transform .28s ease;padding:24px 16px;
    box-shadow:24px 0 60px rgba(0,0,0,.5);
  }
  .side-nav.open{transform:translateX(0);}
  .shell{margin-left:0;padding-top:60px;}
  .hero{padding:44px 0 52px;min-height:auto;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero h1{font-size:28px;max-width:none;}
  .hero-sub{font-size:15px;}
  .section{padding:64px 0;}
  .section-tight{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:28px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:20px;padding:28px 0;}
  .slot-card{grid-template-columns:1fr;gap:18px;}
  .slot-card.compact{grid-template-columns:1fr;}
  .slot-side{flex-direction:row;flex-wrap:wrap;align-items:center;justify-content:flex-start;gap:14px;}
  .cms-list{grid-template-columns:1fr;}
  .cat-mini-grid{grid-template-columns:1fr 1fr;}
  .flow-grid{grid-template-columns:1fr;}
  .faq-wrap{grid-template-columns:1fr;gap:24px;}
  .subscribe{grid-template-columns:1fr;gap:26px;padding:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .container{padding:0 20px;}
}
@media (max-width:767px){
  .hero h1{font-size:26px;}
  .section{padding:56px 0;}
  .stats-grid{grid-template-columns:1fr 1fr;}
  .cat-mini-grid{grid-template-columns:1fr;}
  .form-row{flex-direction:column;}
  .form-row .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .slot-points li{white-space:normal;}
  .countdown{gap:8px;}
  .cd-box{width:64px;height:72px;}
  .cd-box b{font-size:30px;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  .section{padding:40px 0;}
  .hero-meta li+li::before{margin:0 10px;}
  .hero-actions .btn{width:100%;}
  .subscribe{padding:22px;}
  .slot-card{padding:16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg:#07101A;
  --panel-1:#0C1826;
  --panel-2:#101F30;
  --line:rgba(120,200,220,.14);
  --line-strong:rgba(140,225,240,.30);
  --text:#E6EEF5;
  --muted:#9FB2C4;
  --weak:#6B7F94;
  --main:#2EE6C8;
  --main-deep:#17A894;
  --indigo:#6C7CFF;
  --coral:#FF6B5E;
  --success:#4ADE80;
  --radius:16px;
  --radius-lg:20px;
  --nav-w:248px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    linear-gradient(rgba(120,200,220,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,200,220,.045) 1px, transparent 1px);
  background-size:48px 48px;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
::selection{background:rgba(46,230,200,.3);color:#fff;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:rgba(120,200,220,.22);border-radius:999px;}
::-webkit-scrollbar-thumb:hover{background:rgba(120,200,220,.36);}
[hidden]{display:none !important;}

.bg-glow{
  position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(420px 420px at 88% 6%, rgba(46,230,200,.16), transparent 70%),
    radial-gradient(520px 520px at 2% 94%, rgba(108,124,255,.10), transparent 72%);
}
.bg-noise{
  position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.12;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(/%23n)' opacity='0.55'/%3E%3C/svg%3E");
}

/* ---------- App Shell 侧栏 ---------- */
.nav-shell{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);z-index:40;
  display:flex;flex-direction:column;gap:26px;
  padding:28px 18px 20px;
  background:rgba(10,20,32,.74);
  border-right:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  overflow-y:auto;
}
.brand-block{display:flex;flex-direction:column;gap:8px;padding:0 6px;}
.brand-link{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:19px;font-weight:700;letter-spacing:-0.01em;color:var(--text);}
.brand-sub{font-size:12px;letter-spacing:.08em;color:var(--main);margin-top:5px;}
.brand-note{font-size:12px;color:var(--weak);line-height:1.6;}
.nav-list{display:flex;flex-direction:column;gap:6px;}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 14px;border-radius:10px;
  color:var(--muted);font-size:16px;
  transition:background .16s ease,color .16s ease;
}
.nav-item i{width:18px;text-align:center;font-size:15px;flex:none;}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff;}
.nav-item.active{background:rgba(46,230,200,.12);color:#fff;}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:3px;background:var(--main);box-shadow:0 0 12px rgba(46,230,200,.55);
}
.nav-item:focus-visible{outline:2px solid var(--main);outline-offset:2px;}
.nav-status{
  margin-top:auto;padding:12px;border-radius:14px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(140,225,240,.16);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.nav-status img{width:100%;height:56px;object-fit:cover;border-radius:8px;}
.nav-status p{font-size:12px;color:var(--weak);margin:10px 0 10px;line-height:1.6;}

/* ---------- 移动顶栏 / 抽屉 ---------- */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:50;
  align-items:center;justify-content:space-between;padding:0 20px;
  background:rgba(8,16,26,.88);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.brand-mini{display:flex;align-items:baseline;gap:6px;}
.brand-mini .brand-main{font-size:16px;}
.brand-mini .brand-sub{font-size:11px;margin-top:0;}
.hamburger{
  width:40px;height:40px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--text);border:1px solid var(--line-strong);font-size:16px;
  transition:background .16s ease,border-color .16s ease;
}
.hamburger:hover{background:rgba(46,230,200,.1);border-color:rgba(46,230,200,.5);}
.hamburger:focus-visible{outline:2px solid var(--main);outline-offset:2px;}
.drawer-mask{
  position:fixed;inset:0;z-index:55;background:rgba(4,10,18,.72);
  backdrop-filter:blur(2px);
}

/* ---------- 主内容区 ---------- */
.app-main{position:relative;z-index:1;margin-left:var(--nav-w);padding:40px 0 0;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--weak);margin-bottom:26px;
}
.breadcrumb a{color:var(--weak);transition:color .16s ease;}
.breadcrumb a:hover{color:var(--main);}
.breadcrumb .sep{color:rgba(107,127,148,.6);}
.breadcrumb .current{
  color:var(--muted);max-width:24ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- 文章头部（TDK 区） ---------- */
.cms-tdk{padding-bottom:26px;border-bottom:1px solid var(--line);margin-bottom:36px;}
.cms-tdk h1{
  font-size:clamp(26px,3.1vw,34px);
  line-height:1.32;
  font-weight:700;
  letter-spacing:-0.01em;
  color:var(--text);
  max-width:840px;
  margin-bottom:18px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:var(--weak);}
.meta-row .vline{width:1px;height:12px;background:var(--line-strong);}
.meta-row .num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-weight:600;color:#C9D8E4;}

/* ---------- 徽章 / 胶囊 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;line-height:1;border:1px solid transparent;
  white-space:nowrap;
}
.badge-cat{color:#A9B3FF;border-color:rgba(108,124,255,.5);background:rgba(108,124,255,.1);}
.badge-tag{color:var(--muted);border-color:var(--line-strong);background:rgba(255,255,255,.05);}
.badge-mint{color:var(--main);border-color:rgba(46,230,200,.45);background:rgba(46,230,200,.1);}

/* ---------- 文章布局 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 240px;
  gap:48px;
  justify-content:center;
  align-items:start;
}
.article-body-col{min-width:0;}

/* ---------- 正文排版 ---------- */
.cms-article-body{
  font-size:16px;line-height:1.9;color:#D6E2EC;
  word-break:break-word;overflow-wrap:anywhere;
}
.cms-article-body > *:first-child{margin-top:0;}
.cms-article-body p{margin:0 0 1.2em;}
.cms-article-body h2{
  position:relative;font-size:22px;line-height:1.45;font-weight:700;color:var(--text);
  margin:40px 0 16px;padding-left:14px;
}
.cms-article-body h2::before{
  content:"";position:absolute;left:0;top:.34em;bottom:.34em;width:4px;
  border-radius:4px;background:var(--main);box-shadow:0 0 10px rgba(46,230,200,.45);
}
.cms-article-body h3{font-size:18px;font-weight:600;color:#CFE9E4;margin:28px 0 12px;line-height:1.5;}
.cms-article-body h4{font-size:16px;font-weight:600;color:#CFE9E4;margin:22px 0 10px;}
.cms-article-body ul{margin:0 0 1.2em;}
.cms-article-body ul li{position:relative;padding-left:20px;margin-bottom:.6em;}
.cms-article-body ul li::before{
  content:"";position:absolute;left:2px;top:.78em;width:7px;height:7px;border-radius:2px;
  background:var(--main);opacity:.85;
}
.cms-article-body ol{margin:0 0 1.2em;counter-reset:li;}
.cms-article-body ol li{position:relative;padding-left:30px;margin-bottom:.6em;counter-increment:li;}
.cms-article-body ol li::before{
  content:counter(li,decimal-leading-zero);
  position:absolute;left:0;top:.1em;font-family:var(--font-num);font-size:14px;
  font-weight:600;color:var(--main);
}
.cms-article-body blockquote{
  margin:24px 0;padding:20px 24px;
  border-left:3px solid var(--indigo);
  background:rgba(255,255,255,.06);
  border-radius:0 12px 12px 0;
  color:var(--muted);
}
.cms-article-body blockquote p:last-child{margin-bottom:0;}
.cms-article-body img{border-radius:14px;margin:24px auto;max-width:100%;height:auto;}
.cms-article-body figure{margin:24px 0;}
.cms-article-body figcaption{
  text-align:center;font-size:13px;color:var(--weak);margin-top:10px;
}
.cms-article-body a{color:var(--main);text-decoration:underline;text-underline-offset:3px;}
.cms-article-body a:hover{color:#7CF0DC;}
.cms-article-body strong{color:#fff;font-weight:600;}
.cms-article-body code{
  font-family:var(--font-num);font-size:14px;
  background:rgba(255,255,255,.08);border:1px solid var(--line);
  border-radius:6px;padding:2px 6px;color:#BFEFE7;
}
.cms-article-body pre{
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  border-radius:12px;padding:16px;overflow-x:auto;margin:22px 0;
}
.cms-article-body pre code{background:none;border:0;padding:0;}
.cms-article-body hr{border:0;height:1px;background:var(--line);margin:36px 0;}
.cms-article-body .table-wrap{overflow-x:auto;margin:22px 0;border:1px solid var(--line);border-radius:12px;}
.cms-article-body table{width:100%;border-collapse:collapse;font-size:14px;min-width:520px;}
.cms-article-body th,.cms-article-body td{
  padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;
}
.cms-article-body th{color:var(--text);background:rgba(255,255,255,.04);font-weight:600;white-space:nowrap;}
.cms-article-body td{color:var(--muted);}

/* ---------- 空态 ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;padding:64px 20px;text-align:center;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(140,225,240,.16);
  border-radius:var(--radius);
}
.empty-state i{font-size:40px;color:rgba(46,230,200,.4);}
.empty-state p{font-size:15px;color:var(--muted);}

/* ---------- 正文尾部 ---------- */
.hint-card{
  display:flex;gap:14px;align-items:flex-start;
  margin:34px 0 0;padding:20px 22px;
  border-radius:var(--radius);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(140,225,240,.16);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.hint-card i{color:var(--main);font-size:18px;line-height:1.7;flex:none;}
.hint-card p{font-size:14px;line-height:1.85;color:var(--muted);}
.hint-card a{color:var(--main);text-decoration:underline;text-underline-offset:3px;}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:32px 0 0;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;color:var(--muted);
  border:1px solid rgba(108,124,255,.45);
  background:rgba(108,124,255,.08);
  transition:border-color .16s ease,color .16s ease,background .16s ease;
}
.tag:hover{color:#fff;border-color:rgba(108,124,255,.85);background:rgba(108,124,255,.16);}

.section-divider{height:1px;background:var(--line);margin:36px 0;}

/* ---------- 相关推荐 ---------- */
.related-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:20px;}
.related-head h2{
  font-size:22px;font-weight:700;color:var(--text);position:relative;padding-left:14px;line-height:1.4;
}
.related-head h2::before{
  content:"";position:absolute;left:0;top:.34em;bottom:.34em;width:4px;border-radius:4px;background:var(--main);
}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(140,225,240,.16);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.rel-card:hover{transform:translateY(-2px);border-color:rgba(46,230,200,.35);box-shadow:0 12px 26px rgba(0,0,0,.28);}
.rel-card:focus-visible{outline:2px solid var(--main);outline-offset:2px;}
.rel-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,16,26,0) 45%,rgba(7,16,26,.72) 100%);
}
.rel-body{padding:16px 18px 18px;}
.rel-body h3{font-size:16px;font-weight:600;line-height:1.5;color:var(--text);margin-bottom:6px;}
.rel-card:hover .rel-body h3{color:var(--main);}
.rel-body p{font-size:13px;color:var(--weak);line-height:1.7;}
.related-foot{display:flex;justify-content:flex-start;margin-top:26px;}

/* ---------- 目录卡 ---------- */
.toc-col{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px;}
.toc-card{
  padding:20px;
  border-radius:var(--radius);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(140,225,240,.16);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.toc-title{
  font-size:12px;letter-spacing:.08em;color:var(--weak);
  padding-bottom:12px;margin-bottom:10px;border-bottom:1px solid var(--line);
}
.toc-list{display:flex;flex-direction:column;gap:4px;}
.toc-list a{
  display:block;position:relative;
  padding:6px 0 6px 14px;font-size:13px;line-height:1.6;color:var(--muted);
  border-left:2px solid transparent;
  transition:color .16s ease,border-color .16s ease;
}
.toc-list a:hover{color:var(--text);}
.toc-list a.active{color:var(--main);border-left-color:var(--main);}
.toc-list a.toc-l3{padding-left:26px;font-size:12px;color:var(--weak);}
.toc-tip p{font-size:13px;line-height:1.8;color:var(--muted);margin-bottom:12px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:12px;
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,filter .18s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#2EE6C8,#33D6C0);
  color:#04161A;
  box-shadow:0 8px 24px rgba(46,230,200,.28);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 10px 28px rgba(46,230,200,.38);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(46,230,200,.26);}
.btn-ghost{
  background:transparent;border-color:rgba(140,225,240,.3);color:var(--text);
}
.btn-ghost:hover{border-color:rgba(46,230,200,.6);background:rgba(46,230,200,.08);}
.btn:focus-visible{outline:2px solid #E6EEF5;outline-offset:2px;}
.btn-sm{height:36px;padding:0 16px;font-size:13px;border-radius:10px;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--main);
  transition:color .16s ease;
}
.link-arrow i{transition:transform .16s ease;font-size:12px;}
.link-arrow:hover i{transform:translateX(4px);}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px;}

/* ---------- 订阅区 ---------- */
.subscribe-band{
  margin-top:72px;
  border-radius:var(--radius-lg);
  border:1px solid rgba(140,225,240,.16);
  background:
    linear-gradient(120deg,rgba(16,31,48,.92),rgba(12,24,38,.92)),
    url("/assets/images/backpic/back-3.png") center/cover no-repeat;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  padding:36px 40px;
  display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center;
}
.subscribe-band h2{font-size:24px;line-height:1.4;font-weight:700;color:var(--text);margin-bottom:10px;}
.subscribe-band .sub-desc{font-size:14px;line-height:1.8;color:var(--muted);margin-bottom:10px;}
.subscribe-band .sub-privacy{font-size:12px;color:var(--weak);}
.subscribe-form{display:flex;gap:12px;}
.field{
  flex:1;min-width:0;height:48px;padding:0 16px;border-radius:12px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(140,225,240,.22);
  color:var(--text);font-size:15px;
  transition:border-color .16s ease,box-shadow .16s ease,background .16s ease;
}
.field::placeholder{color:rgba(107,127,148,.75);}
.field:focus{
  outline:none;border-color:var(--main);
  box-shadow:0 0 0 3px rgba(46,230,200,.18);
  background:rgba(255,255,255,.08);
}
.form-msg{min-height:22px;margin-top:10px;font-size:13px;line-height:1.6;color:transparent;}
.form-msg.is-error{color:var(--coral);}
.form-msg.is-ok{color:var(--success);}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;
  margin-top:96px;padding:56px 0 0;
  border-top:1px solid var(--line);
  background:rgba(9,18,28,.62);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;}
.footer-brand .brand-main{font-size:18px;font-weight:700;color:var(--text);}
.footer-brand p{font-size:13px;line-height:1.85;color:var(--weak);margin:12px 0 16px;max-width:300px;}
.footer-brand img{width:80px;height:48px;object-fit:cover;border-radius:8px;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13px;color:var(--weak);transition:color .16s ease;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:40px;padding:20px 0 28px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--weak);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,760px);}
  .toc-col{display:none;}
}
@media (min-width:1024px) and (max-width:1279px){
  :root{--nav-w:88px;}
  .nav-shell{padding:24px 10px 18px;align-items:center;}
  .brand-block{align-items:center;text-align:center;padding:0;}
  .brand-main{font-size:13px;line-height:1.25;}
  .brand-sub{font-size:10px;letter-spacing:.04em;margin-top:4px;}
  .brand-note{display:none;}
  .nav-list{width:100%;}
  .nav-item{justify-content:center;padding:0;height:46px;}
  .nav-item i{font-size:16px;}
  .nav-item span{
    position:absolute;left:calc(100% + 14px);top:50%;transform:translateY(-50%);
    padding:7px 12px;border-radius:10px;white-space:nowrap;
    background:rgba(16,31,48,.97);border:1px solid var(--line-strong);
    font-size:12px;color:var(--text);
    opacity:0;pointer-events:none;transition:opacity .16s ease;z-index:5;
  }
  .nav-item:hover span,.nav-item:focus-visible span{opacity:1;}
  .nav-status{width:100%;padding:8px;}
  .nav-status img{height:40px;}
  .nav-status p,.nav-status .btn{display:none;}
}
@media (max-width:1023px){
  .mobile-bar{display:flex;}
  .nav-shell{
    width:280px;transform:translateX(-100%);
    transition:transform .28s ease;z-index:60;
    padding-top:24px;
  }
  .nav-shell.open{transform:translateX(0);}
  .app-main{margin-left:0;padding-top:84px;}
  .container{padding:0 20px;}
  .subscribe-band{grid-template-columns:1fr;gap:24px;padding:28px 24px;margin-top:56px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .site-footer{margin-top:64px;padding-top:44px;}
}
@media (max-width:767px){
  .breadcrumb{font-size:13px;margin-bottom:20px;}
  .cms-tdk h1{font-size:26px;}
  .meta-row{font-size:13px;gap:10px;}
  .related-grid{grid-template-columns:1fr;}
  .related-head h2{font-size:20px;}
  .subscribe-form{flex-direction:column;}
  .subscribe-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
  .cms-article-body h2{font-size:20px;}
  .cms-article-body{font-size:15px;}
  .hint-card{flex-direction:column;gap:10px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .app-main{padding-top:80px;}
  .cms-tdk{padding-bottom:20px;margin-bottom:26px;}
  .tag-row{gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;animation-iteration-count:1 !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
    --bg:#07101A;
    --panel:#0C1826;
    --panel-2:#101F30;
    --line:rgba(120,200,220,.14);
    --line-strong:rgba(140,225,240,.32);
    --text:#E6EEF5;
    --text-2:#9FB2C4;
    --text-3:#6B7F94;
    --main:#2EE6C8;
    --main-deep:#17A894;
    --iris:#6C7CFF;
    --coral:#FF6B5E;
    --ok:#4ADE80;
    --warn:#F5B544;
    --muted:#5A6B80;
    --radius:16px;
    --radius-lg:20px;
    --sidebar-w:248px;
    --font-base:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
    --font-num:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace,monospace;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:var(--font-base);
    font-size:16px;
    line-height:1.8;
    letter-spacing:0;
    position:relative;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    background-image:
      linear-gradient(rgba(120,200,220,.045) 1px,transparent 1px),
      linear-gradient(90deg,rgba(120,200,220,.045) 1px,transparent 1px);
    background-size:52px 52px;
    pointer-events:none;
    z-index:0;
  }
  body::after{
    content:"";
    position:fixed;
    right:-120px;
    top:-80px;
    width:520px;
    height:520px;
    border-radius:50%;
    background:radial-gradient(circle,rgba(46,230,200,.13),transparent 68%);
    pointer-events:none;
    z-index:0;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  ::selection{background:rgba(46,230,200,.3);color:#fff}
  ::-webkit-scrollbar{width:10px;height:10px}
  ::-webkit-scrollbar-track{background:transparent}
  ::-webkit-scrollbar-thumb{background:rgba(120,200,220,.22);border-radius:99px}
  ::-webkit-scrollbar-thumb:hover{background:rgba(120,200,220,.34)}
  :focus-visible{outline:2px solid var(--main);outline-offset:2px;border-radius:6px}

  /* ---------- 侧栏 ---------- */
  .sidebar{
    position:fixed;
    inset:0 auto 0 0;
    width:var(--sidebar-w);
    padding:22px 16px 18px;
    background:linear-gradient(180deg,#0A1523 0%,#081320 100%);
    border-right:1px solid var(--line);
    display:flex;
    flex-direction:column;
    gap:22px;
    z-index:40;
    overflow-y:auto;
  }
  .brand{display:flex;align-items:center;gap:10px;padding:4px 6px}
  .brand-mark{
    width:38px;height:38px;flex:none;
    border-radius:12px;
    display:grid;place-items:center;
    font-size:17px;font-weight:700;color:#04161A;
    background:linear-gradient(140deg,#2EE6C8,#33D6C0);
    box-shadow:0 6px 18px rgba(46,230,200,.26);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.25}
  .brand-text strong{font-size:16px;font-weight:700;letter-spacing:.01em}
  .brand-text small{font-size:11px;color:var(--text-3);letter-spacing:.12em}
  .brand-note{
    font-size:12px;color:var(--text-3);padding:0 6px;margin-top:-8px;line-height:1.6;
  }
  .nav-list{display:flex;flex-direction:column;gap:4px}
  .nav-item{
    position:relative;
    display:flex;align-items:center;gap:12px;
    height:44px;padding:0 14px;
    border-radius:10px;
    color:var(--text-2);
    font-size:16px;
    transition:background .16s ease,color .16s ease;
  }
  .nav-item i{width:18px;text-align:center;font-size:15px;flex:none}
  .nav-item:hover{background:rgba(255,255,255,.06);color:#fff}
  .nav-item.active{background:rgba(46,230,200,.12);color:#fff}
  .nav-item.active::before{
    content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
    border-radius:0 3px 3px 0;background:var(--main);
    box-shadow:0 0 12px rgba(46,230,200,.6);
  }
  .nav-item.active i{color:var(--main)}
  .side-status{
    margin-top:auto;
    padding:12px;
    border-radius:14px;
    background:rgba(255,255,255,.035);
    border:1px solid var(--line);
  }
  .side-status img{width:100%;height:56px;object-fit:cover;border-radius:9px;opacity:.85}
  .side-status p{font-size:12px;color:var(--text-3);margin-top:8px;line-height:1.6}
  .side-status .mini-btn{
    display:inline-flex;align-items:center;gap:6px;
    margin-top:8px;font-size:12px;color:var(--main);
    border:1px solid rgba(140,225,240,.24);
    border-radius:999px;padding:4px 10px;
    transition:border-color .18s ease,background .18s ease;
  }
  .side-status .mini-btn:hover{border-color:rgba(46,230,200,.55);background:rgba(46,230,200,.1)}
  .drawer-head{display:none}
  .drawer-mask{
    position:fixed;inset:0;background:rgba(4,10,18,.72);
    opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
    z-index:35;backdrop-filter:blur(2px);
  }
  .drawer-mask.show{opacity:1;visibility:visible}
  .mobile-bar{
    display:none;
    position:fixed;top:0;left:0;right:0;height:60px;
    align-items:center;justify-content:space-between;
    padding:0 18px;
    background:rgba(8,19,32,.92);
    border-bottom:1px solid var(--line);
    backdrop-filter:blur(12px);
    z-index:30;
  }
  .mobile-bar .m-logo{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:700}
  .mobile-bar .m-logo span.dot{
    width:26px;height:26px;border-radius:9px;display:grid;place-items:center;
    font-size:13px;color:#04161A;background:linear-gradient(140deg,#2EE6C8,#33D6C0);
  }
  .menu-btn{
    width:40px;height:40px;border-radius:10px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.04);
    color:var(--text);display:grid;place-items:center;
    transition:background .16s ease,border-color .16s ease;
  }
  .menu-btn:hover{background:rgba(46,230,200,.12);border-color:rgba(46,230,200,.4)}

  /* ---------- 主体 ---------- */
  .main{
    position:relative;
    z-index:1;
    margin-left:var(--sidebar-w);
    padding:40px 0 0;
  }
  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 32px;
  }
  .glass{
    background:rgba(255,255,255,.05);
    border:1px solid rgba(140,225,240,.16);
    border-radius:var(--radius-lg);
    backdrop-filter:blur(14px);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  }
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;letter-spacing:.1em;color:var(--main);
    text-transform:uppercase;
  }
  .eyebrow::before{content:"";width:18px;height:1px;background:var(--main);opacity:.7}

  /* ---------- 分类导语 ---------- */
  .page-hero{
    position:relative;
    border-radius:var(--radius-lg);
    border:1px solid var(--line);
    overflow:hidden;
    padding:46px 40px;
    background:
      linear-gradient(120deg,rgba(7,16,26,.94) 12%,rgba(7,16,26,.78) 62%,rgba(11,32,44,.72) 100%),
      url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    min-height:248px;
    display:flex;
    align-items:center;
  }
  .page-hero::after{
    content:"";position:absolute;right:-60px;bottom:-90px;width:340px;height:340px;
    background:radial-gradient(circle,rgba(46,230,200,.18),transparent 70%);
    pointer-events:none;
  }
  .hero-grid{
    position:relative;z-index:1;
    display:grid;grid-template-columns:1fr 236px;gap:36px;align-items:center;width:100%;
  }
  .page-hero h1{
    font-size:40px;line-height:1.3;font-weight:700;letter-spacing:-.01em;margin-top:12px;
  }
  .page-hero h1 em{font-style:normal;color:var(--main)}
  .hero-lead{
    margin-top:12px;font-size:16px;color:var(--text-2);max-width:560px;line-height:1.8;
  }
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
  .pill{
    display:inline-flex;align-items:center;gap:7px;
    height:28px;padding:0 12px;border-radius:999px;
    font-size:12px;letter-spacing:.02em;
    border:1px solid rgba(108,124,255,.4);
    color:#B9C1FF;background:rgba(108,124,255,.1);
  }
  .pill.mint{border-color:rgba(46,230,200,.4);color:#8FF3E4;background:rgba(46,230,200,.1)}
  .pill.mute{border-color:var(--line);color:var(--text-3);background:rgba(255,255,255,.04)}
  .stat-card{padding:20px 18px;text-align:left}
  .stat-card .label{font-size:12px;color:var(--text-3);letter-spacing:.08em}
  .stat-row{display:flex;align-items:baseline;gap:6px;margin-top:6px}
  .stat-num{font-family:var(--font-num);font-size:38px;font-weight:600;color:var(--main);line-height:1;font-variant-numeric:tabular-nums}
  .stat-unit{font-size:13px;color:var(--text-2)}
  .stat-card .desc{font-size:12px;color:var(--text-3);margin-top:10px;line-height:1.7}
  .stat-split{height:1px;background:var(--line);margin:14px 0}
  .stat-mini{display:flex;justify-content:space-between;font-size:12px;color:var(--text-2)}
  .stat-mini b{font-family:var(--font-num);font-weight:600;color:var(--text)}

  /* ---------- 板块通用 ---------- */
  .section{margin-top:72px}
  .section-head{
    display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;
  }
  .section-head h2{
    position:relative;font-size:28px;line-height:1.3;font-weight:700;padding-left:16px;
  }
  .section-head h2::before{
    content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
    background:linear-gradient(180deg,#2EE6C8,#17A894);
  }
  .section-sub{font-size:14px;color:var(--text-3);margin-top:6px;padding-left:16px}
  .link-arrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:14px;color:var(--main);white-space:nowrap;
    transition:color .18s ease;
  }
  .link-arrow i{transition:transform .18s ease;font-size:12px}
  .link-arrow:hover{text-decoration:underline;text-underline-offset:4px}
  .link-arrow:hover i{transform:translateX(4px)}

  /* ---------- 时间轴 ---------- */
  .timeline{position:relative;padding-left:30px}
  .timeline::before{
    content:"";position:absolute;left:7px;top:26px;bottom:26px;width:1px;
    background:linear-gradient(180deg,rgba(46,230,200,.55),rgba(120,200,220,.16) 55%,transparent);
  }
  .tl-item{position:relative;margin-bottom:14px}
  .tl-dot{
    position:absolute;left:-30px;top:28px;width:15px;height:15px;border-radius:50%;
    background:#08131F;border:1px solid rgba(120,200,220,.4);
    display:grid;place-items:center;
  }
  .tl-item.current .tl-dot{
    background:var(--main);border-color:var(--main);
    box-shadow:0 0 0 4px rgba(46,230,200,.16),0 0 14px rgba(46,230,200,.5);
  }
  .tl-card{
    display:grid;grid-template-columns:132px 1fr 150px;gap:24px;align-items:center;
    padding:20px 24px;
    border-radius:var(--radius);
    background:rgba(255,255,255,.04);
    border:1px solid var(--line);
    transition:transform .2s ease,border-color .2s ease,background .2s ease;
  }
  .tl-card:hover{transform:translateY(-2px);border-color:rgba(46,230,200,.35);background:rgba(255,255,255,.06)}
  .tl-item.current .tl-card{
    background:linear-gradient(90deg,rgba(46,230,200,.1),rgba(16,31,48,.6) 42%);
    border-color:rgba(46,230,200,.42);
    box-shadow:inset 4px 0 0 0 var(--main);
  }
  .tl-date{display:flex;flex-direction:column;gap:2px}
  .d-day{font-family:var(--font-num);font-size:20px;font-weight:600;color:var(--main);font-variant-numeric:tabular-nums;letter-spacing:.02em}
  .d-time{font-family:var(--font-num);font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
  .tl-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
  .tl-head h3{font-size:17px;font-weight:600;line-height:1.5}
  .tl-desc{font-size:14px;color:var(--text-2);margin-top:6px;line-height:1.75}
  .tl-points{display:flex;flex-wrap:wrap;gap:6px 18px;margin-top:8px}
  .tl-points li{
    position:relative;padding-left:13px;font-size:13px;color:var(--text-3);
    line-height:1.7;
  }
  .tl-points li::before{
    content:"";position:absolute;left:0;top:8px;width:4px;height:4px;border-radius:1px;background:var(--main);opacity:.85;
  }
  .tl-act{display:flex;flex-direction:column;align-items:flex-end;gap:8px}
  .tl-note{font-size:12px;color:var(--text-3);font-family:var(--font-num)}

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    height:24px;padding:0 10px;border-radius:999px;
    font-size:12px;line-height:1;border:1px solid transparent;white-space:nowrap;
  }
  .badge-live{border-color:rgba(255,107,94,.5);color:#FFA79E;background:rgba(255,107,94,.12)}
  .badge-live .dot{width:6px;height:6px;border-radius:50%;background:var(--coral);animation:pulse 2s ease-in-out infinite}
  .badge-soon{border-color:rgba(46,230,200,.45);color:#8FF3E4;background:rgba(46,230,200,.1)}
  .badge-replay{border-color:rgba(120,200,220,.28);color:var(--text-2);background:rgba(255,255,255,.05)}
  .badge-cat{border-color:rgba(108,124,255,.4);color:#B9C1FF;background:rgba(108,124,255,.1)}
  @keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.82)}}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;border-radius:12px;
    font-size:15px;font-weight:600;border:1px solid transparent;
    cursor:pointer;transition:all .18s ease;white-space:nowrap;
  }
  .btn-primary{
    color:#04161A;
    background:linear-gradient(135deg,#2EE6C8,#33D6C0);
    box-shadow:0 8px 24px rgba(46,230,200,.28);
  }
  .btn-primary:hover{filter:brightness(1.08);box-shadow:0 10px 28px rgba(46,230,200,.38);transform:translateY(-1px)}
  .btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(46,230,200,.24)}
  .btn-ghost{
    color:var(--text);background:transparent;
    border-color:rgba(140,225,240,.3);
  }
  .btn-ghost:hover{border-color:rgba(46,230,200,.6);background:rgba(46,230,200,.08)}
  .btn-sm{height:36px;padding:0 16px;font-size:13px;border-radius:10px;box-shadow:none}
  .btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;filter:none}

  /* ---------- 场次类型卡 ---------- */
  .type-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .type-card{
    display:flex;flex-direction:column;overflow:hidden;
    border-radius:var(--radius);border:1px solid var(--line);
    background:rgba(255,255,255,.04);
    transition:transform .2s ease,border-color .2s ease;
  }
  .type-card:hover{transform:translateY(-2px);border-color:var(--line-strong)}
  .type-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
  .type-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
  .type-card:hover .thumb img{transform:scale(1.04)}
  .type-card .thumb::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(7,16,26,0) 46%,rgba(7,16,26,.78) 100%);
  }
  .type-card .thumb .tag{
    position:absolute;left:12px;top:12px;z-index:1;
    height:24px;padding:0 10px;border-radius:999px;
    display:inline-flex;align-items:center;font-size:12px;
    background:rgba(7,16,26,.72);border:1px solid rgba(140,225,240,.3);color:var(--text);
    backdrop-filter:blur(6px);
  }
  .type-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
  .type-body h3{font-size:17px;font-weight:600}
  .type-body p{font-size:14px;color:var(--text-2);line-height:1.75}
  .type-foot{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:12px}
  .mini-label{font-size:12px;color:var(--text-3);border:1px solid var(--line);border-radius:999px;padding:2px 10px}

  /* ---------- 订阅条 ---------- */
  .subscribe-band{
    margin-top:72px;
    padding:32px 36px;
    display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;
    border-radius:var(--radius-lg);
    background:
      linear-gradient(120deg,rgba(46,230,200,.1),rgba(16,31,48,.72) 58%),
      rgba(255,255,255,.04);
    border:1px solid rgba(140,225,240,.18);
    backdrop-filter:blur(14px);
  }
  .subscribe-band h2{font-size:26px;line-height:1.35;font-weight:700}
  .subscribe-band .lead{font-size:15px;color:var(--text-2);margin-top:10px;line-height:1.8}
  .privacy{display:block;font-size:12px;color:var(--text-3);margin-top:10px}
  .sub-form label{display:block;font-size:14px;color:var(--text-2);margin-bottom:8px}
  .sub-row{display:flex;gap:12px}
  .sub-row input{
    flex:1;height:48px;padding:0 16px;border-radius:12px;
    background:rgba(255,255,255,.06);
    border:1px solid rgba(140,225,240,.2);
    color:var(--text);font-size:15px;font-family:inherit;
    transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
  }
  .sub-row input::placeholder{color:rgba(159,178,196,.55)}
  .sub-row input:focus{
    outline:none;border-color:var(--main);
    box-shadow:0 0 0 3px rgba(46,230,200,.18);
    background:rgba(255,255,255,.09);
  }
  .sub-row input.is-error{border-color:var(--coral);box-shadow:0 0 0 3px rgba(255,107,94,.16)}
  .form-msg{font-size:14px;min-height:22px;margin-top:10px;color:var(--text-3)}
  .form-msg.err{color:var(--coral)}
  .form-msg.ok{color:var(--ok)}

  /* ---------- FAQ ---------- */
  .faq-wrap{display:grid;grid-template-columns:32% 1fr;gap:40px;align-items:start}
  .faq-intro h2{font-size:28px;line-height:1.3;font-weight:700;padding-left:16px;position:relative}
  .faq-intro h2::before{
    content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
    background:linear-gradient(180deg,#2EE6C8,#17A894);
  }
  .faq-intro p{font-size:14px;color:var(--text-2);margin-top:14px;line-height:1.8;padding-left:16px}
  .faq-intro .link-arrow{margin-top:18px;padding-left:16px}
  .faq-list{border-top:1px solid var(--line)}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    min-height:60px;padding:12px 4px;cursor:pointer;
    font-size:16px;color:var(--text);list-style:none;
    transition:color .18s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{color:var(--main)}
  .faq-item summary .sign{
    width:22px;height:22px;flex:none;border-radius:50%;
    display:grid;place-items:center;font-size:11px;
    border:1px solid var(--line);color:var(--text-2);
    transition:transform .22s ease,color .22s ease,border-color .22s ease;
  }
  .faq-item[open] summary .sign{transform:rotate(45deg);color:var(--main);border-color:rgba(46,230,200,.5)}
  .faq-item .answer{padding:0 4px 18px;font-size:15px;color:var(--text-2);line-height:1.8;max-width:760px}

  /* ---------- 页脚 ---------- */
  .site-footer{
    position:relative;z-index:1;
    margin-left:var(--sidebar-w);
    margin-top:72px;
    border-top:1px solid var(--line);
    background:linear-gradient(180deg,rgba(10,21,35,.6),rgba(7,16,26,.95));
    padding:56px 0 0;
  }
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
  .footer-brand .brand-main{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--text)}
  .footer-brand p{font-size:13px;color:var(--text-3);margin-top:10px;line-height:1.8;max-width:260px}
  .footer-brand img{width:80px;height:48px;object-fit:cover;border-radius:8px;margin-top:16px;opacity:.7}
  .footer-col h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px}
  .footer-col ul{display:flex;flex-direction:column;gap:10px}
  .footer-col a{font-size:14px;color:var(--text-3);transition:color .16s ease}
  .footer-col a:hover{color:#fff}
  .footer-bottom{
    margin-top:44px;border-top:1px solid var(--line);
    padding:18px 0 22px;
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:var(--text-3);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1279px) and (min-width:1024px){
    :root{--sidebar-w:88px}
    .sidebar{padding:20px 10px;align-items:center}
    .brand{justify-content:center;padding:0}
    .brand-text,.brand-note,.side-status p,.side-status .mini-btn span{display:none}
    .side-status{padding:8px;width:100%}
    .side-status img{height:44px}
    .nav-list{width:100%;align-items:center}
    .nav-item{justify-content:center;padding:0;width:48px}
    .nav-item span{display:none}
    .nav-item::after{
      content:attr(data-label);
      position:absolute;left:56px;top:50%;transform:translateY(-50%) translateX(-4px);
      background:rgba(12,24,38,.96);
      border:1px solid var(--line);
      color:var(--text);font-size:12px;padding:4px 10px;border-radius:8px;
      white-space:nowrap;opacity:0;pointer-events:none;
      transition:opacity .16s ease,transform .16s ease;z-index:50;
    }
    .nav-item:hover::after,.nav-item:focus-visible::after{opacity:1;transform:translateY(-50%) translateX(0)}
  }

  @media (max-width:1023px){
    .sidebar{
      width:280px;transform:translateX(-100%);
      transition:transform .28s ease;padding:18px 16px;
    }
    .sidebar.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
    .drawer-head .close-btn{
      width:34px;height:34px;border-radius:9px;border:1px solid var(--line);
      background:rgba(255,255,255,.05);color:var(--text);display:grid;place-items:center;
    }
    .mobile-bar{display:flex}
    .main{margin-left:0;padding-top:76px}
    .site-footer{margin-left:0}
    .container{padding:0 20px}
    .page-hero{padding:32px 24px;min-height:0}
    .hero-grid{grid-template-columns:1fr;gap:24px}
    .page-hero h1{font-size:28px}
    .stat-card{max-width:340px}
    .timeline{padding-left:22px}
    .timeline::before{left:3px}
    .tl-dot{left:-22px;top:24px}
    .tl-card{grid-template-columns:1fr;gap:12px;padding:18px}
    .tl-act{align-items:flex-start;flex-direction:row;align-items:center;gap:12px}
    .type-grid{grid-template-columns:1fr}
    .subscribe-band{grid-template-columns:1fr;padding:26px 22px;gap:22px}
    .faq-wrap{grid-template-columns:1fr;gap:24px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    .section{margin-top:56px}
    .section-head h2{font-size:22px}
    .section-head{flex-direction:column;align-items:flex-start;gap:10px}
    .faq-intro h2{font-size:22px}
  }

  @media (max-width:767px){
    .footer-grid{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column;gap:8px;font-size:12px}
    .subscribe-band h2{font-size:21px}
    .sub-row{flex-direction:column}
    .sub-row .btn{width:100%}
    .tl-head h3{font-size:16px}
  }

  @media (max-width:520px){
    .container{padding:0 16px}
    .page-hero{padding:26px 18px}
    .page-hero h1{font-size:26px}
    .hero-lead{font-size:15px}
    .tl-card{padding:16px}
    .section{margin-top:44px}
    .type-body{padding:16px}
  }

  @media (prefers-reduced-motion:reduce){
    *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  }

/* roulang page: category2 */
:root{
  --bg:#07101A;
  --panel-1:#0C1826;
  --panel-2:#101F30;
  --line:rgba(120,200,220,.14);
  --line-strong:rgba(140,225,240,.3);
  --text:#E6EEF5;
  --text-2:#9FB2C4;
  --text-3:#6B7F94;
  --primary:#2EE6C8;
  --primary-deep:#17A894;
  --accent:#6C7CFF;
  --coral:#FF6B5E;
  --success:#4ADE80;
  --warn:#F5B544;
  --disabled:#5A6B80;
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:20px;
  --shadow-primary:0 8px 24px rgba(46,230,200,.28);
  --shadow-primary-hover:0 10px 30px rgba(46,230,200,.38);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace,monospace;
  --side-w:248px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    linear-gradient(rgba(120,200,220,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,200,220,.045) 1px, transparent 1px),
    radial-gradient(900px 620px at 92% -12%, rgba(46,230,200,.12), transparent 62%),
    radial-gradient(720px 520px at -8% 92%, rgba(108,124,255,.10), transparent 66%);
  background-size:48px 48px, 48px 48px, auto, auto;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-sm);}
a{color:inherit;text-decoration:none;transition:color .16s ease,border-color .16s ease,background-color .16s ease;}
a:hover{color:var(--primary);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:0;font-weight:600;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(46,230,200,.3);color:#fff;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:rgba(120,200,220,.22);border-radius:999px;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

/* ---------- App shell ---------- */
.app{min-height:100vh;}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--side-w);
  display:flex;flex-direction:column;gap:20px;
  padding:24px 18px 20px;
  background:linear-gradient(180deg,rgba(12,24,38,.96),rgba(7,16,26,.98));
  border-right:1px solid var(--line);
  z-index:60;
}
.brand{padding:0 6px;}
.brand-link{display:block;}
.brand-main{display:block;font-size:19px;font-weight:700;color:var(--text);letter-spacing:.01em;}
.brand-sub{display:block;font-size:12px;color:var(--primary);letter-spacing:.18em;margin-top:2px;}
.brand-note{font-size:12px;color:var(--text-3);margin:8px 0 0;line-height:1.5;}
.nav-list{display:flex;flex-direction:column;gap:6px;}
.nav-item{
  display:flex;align-items:center;gap:12px;
  height:44px;padding:0 14px;border-radius:10px;
  font-size:15px;color:var(--text-2);
  border-left:3px solid transparent;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease;
}
.nav-item i{width:18px;text-align:center;font-size:15px;color:var(--text-3);transition:color .16s ease;}
.nav-item:hover{background:rgba(255,255,255,.06);color:var(--text);}
.nav-item:hover i{color:var(--primary);}
.nav-item.active{
  background:rgba(46,230,200,.12);
  border-left-color:var(--primary);
  color:#fff;
}
.nav-item.active i{color:var(--primary);}
.side-status{
  margin-top:auto;
  padding:14px;border-radius:var(--radius);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(140,225,240,.16);
  backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.side-status img{width:100%;height:56px;object-fit:cover;border-radius:10px;}
.side-status-time{font-size:12px;color:var(--text-3);margin:10px 0 10px;line-height:1.6;}
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:70;
  align-items:center;justify-content:space-between;
  padding:0 20px;
  background:rgba(7,16,26,.92);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
}
.topbar-brand{font-size:16px;font-weight:700;color:var(--text);letter-spacing:.01em;}
.hamburger{
  width:40px;height:40px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;color:var(--text);
  border:1px solid rgba(140,225,240,.24);
}
.hamburger:hover{background:rgba(46,230,200,.12);border-color:rgba(46,230,200,.4);}
.overlay{
  position:fixed;inset:0;background:rgba(4,10,18,.72);
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;z-index:55;
}
.overlay.show{opacity:1;visibility:visible;}
.main-wrap{
  margin-left:var(--side-w);
  min-height:100vh;
  display:flex;flex-direction:column;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
main{padding-top:40px;flex:1 1 auto;}

/* ---------- Head block ---------- */
.page-head{
  position:relative;
  padding:36px 32px 34px;
  border-radius:var(--radius-lg);
  background:linear-gradient(150deg,rgba(16,31,48,.92),rgba(12,24,38,.72));
  border:1px solid var(--line);
  overflow:hidden;
}
.page-head::after{
  content:"";position:absolute;right:-120px;bottom:-160px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(46,230,200,.18),transparent 68%);
  pointer-events:none;
}
.head-grid{display:grid;grid-template-columns:1.5fr .9fr;gap:40px;align-items:center;position:relative;z-index:1;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:16px;flex-wrap:wrap;}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span.sep{color:rgba(120,200,220,.35);}
.page-title{font-size:40px;line-height:1.3;margin-bottom:16px;}
.page-title em{font-style:normal;color:var(--primary);}
.page-lead{font-size:16px;color:var(--text-2);line-height:1.8;margin-bottom:22px;}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  font-size:13px;color:var(--text);
  background:rgba(108,124,255,.10);
  border:1px solid rgba(108,124,255,.4);
}
.pill i{color:var(--accent);font-size:12px;}
.head-card{
  padding:22px;border-radius:var(--radius);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(140,225,240,.16);
  backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.head-card h4{font-size:13px;color:var(--text-3);font-weight:500;letter-spacing:.1em;margin-bottom:14px;}
.stat-row{display:flex;align-items:baseline;justify-content:space-between;padding:10px 0;border-bottom:1px dashed rgba(120,200,220,.16);}
.stat-row:last-child{border-bottom:0;padding-bottom:0;}
.stat-label{font-size:13px;color:var(--text-2);}
.stat-num{font-family:var(--mono);font-size:20px;font-weight:600;color:var(--primary);font-variant-numeric:tabular-nums;}
.stat-num.small{font-size:15px;color:var(--text);}
.live-state{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);}
.dot{width:8px;height:8px;border-radius:50%;background:var(--coral);display:inline-block;animation:pulse 2s ease-in-out infinite;}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1;}50%{transform:scale(1.35);opacity:.55;}}

/* ---------- Sections ---------- */
.section{margin-top:72px;}
.section-head{margin-bottom:28px;}
.section-head h2{font-size:28px;position:relative;padding-left:16px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--primary-deep));
}
.section-sub{font-size:14px;color:var(--text-3);margin:8px 0 0;padding-left:16px;}

/* ---------- Steps alternating ---------- */
.step-flow{display:flex;flex-direction:column;gap:40px;}
.step-row{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
  padding:26px;border-radius:var(--radius-lg);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease;
}
.step-row:hover{border-color:rgba(46,230,200,.32);transform:translateY(-2px);}
.step-media{position:relative;border-radius:var(--radius);overflow:hidden;}
.step-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius);}
.step-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(140deg,rgba(46,230,200,.22),rgba(108,124,255,.14));
  mix-blend-mode:screen;pointer-events:none;
}
.step-tag{
  position:absolute;top:12px;left:12px;z-index:2;
  height:24px;padding:0 10px;border-radius:999px;
  display:inline-flex;align-items:center;
  font-size:12px;color:#04161A;font-weight:600;
  background:var(--primary);
}
.step-body{padding:6px 4px;}
.step-num{
  font-family:var(--mono);font-size:32px;font-weight:600;line-height:1;
  color:rgba(46,230,200,.32);display:block;margin-bottom:10px;font-variant-numeric:tabular-nums;
}
.step-body h3{font-size:20px;margin-bottom:12px;}
.step-body p{font-size:15px;color:var(--text-2);line-height:1.8;margin-bottom:.8em;}
.step-body p:last-child{margin-bottom:0;}
.step-row.reverse .step-media{order:2;}
.step-row.reverse .step-body{order:1;}

/* ---------- Status list ---------- */
.status-panel{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  overflow:hidden;
}
.status-item{
  display:grid;grid-template-columns:1fr auto auto;gap:20px;align-items:center;
  padding:18px 22px;
  border-bottom:1px solid var(--line);
  transition:background-color .16s ease;
}
.status-item:last-child{border-bottom:0;}
.status-item:hover{background:rgba(255,255,255,.05);}
.status-name{display:block;font-size:16px;color:var(--text);margin-bottom:4px;}
.status-desc{display:block;font-size:14px;color:var(--text-3);line-height:1.7;}
.status-time{
  font-family:var(--mono);font-size:13px;color:var(--text-2);
  font-variant-numeric:tabular-nums;white-space:nowrap;
}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;line-height:1;white-space:nowrap;border:1px solid transparent;
}
.badge-accent{color:var(--accent);border-color:rgba(108,124,255,.45);background:rgba(108,124,255,.08);}
.badge-primary{color:var(--primary);border-color:rgba(46,230,200,.45);background:rgba(46,230,200,.08);}
.badge-coral{color:var(--coral);border-color:rgba(255,107,94,.45);background:rgba(255,107,94,.08);}
.badge-muted{color:var(--text-2);border-color:rgba(120,200,220,.24);background:rgba(120,200,220,.06);}

/* ---------- Tip cards ---------- */
.tip-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.tip-card{
  display:flex;gap:16px;
  padding:22px;border-radius:var(--radius);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(140,225,240,.16);
  backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.tip-card.warn{border-color:rgba(255,107,94,.3);}
.tip-icon{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;color:var(--primary);background:rgba(46,230,200,.12);
}
.tip-card.warn .tip-icon{color:var(--coral);background:rgba(255,107,94,.12);}
.tip-card h4{font-size:16px;margin-bottom:8px;}
.tip-card p{font-size:14px;color:var(--text-2);line-height:1.8;margin:0;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:32% 1fr;gap:40px;align-items:start;}
.faq-intro h2{font-size:26px;padding-left:16px;position:relative;}
.faq-intro h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--primary-deep));
}
.faq-intro p{font-size:14px;color:var(--text-3);line-height:1.8;margin-top:12px;padding-left:16px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:16px 4px;
  font-size:16px;color:var(--text);cursor:pointer;list-style:none;
  transition:color .16s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-item summary .fi{flex:0 0 auto;width:20px;height:20px;position:relative;}
.faq-item summary .fi::before,
.faq-item summary .fi::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .22s ease,opacity .22s ease;
}
.faq-item summary .fi::before{width:12px;height:2px;}
.faq-item summary .fi::after{width:2px;height:12px;}
.faq-item[open] summary .fi::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-answer{padding:0 4px 20px;font-size:15px;line-height:1.8;color:var(--text-2);max-width:72ch;}

/* ---------- CTA band ---------- */
.cta-band{
  margin-top:72px;padding:34px;
  border-radius:var(--radius-lg);
  background:linear-gradient(130deg,rgba(16,31,48,.95),rgba(12,24,38,.8));
  border:1px solid rgba(140,225,240,.18);
  display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;
}
.cta-copy h2{font-size:26px;margin-bottom:12px;}
.cta-copy p{font-size:15px;color:var(--text-2);line-height:1.8;margin-bottom:10px;}
.cta-copy .privacy{font-size:12px;color:var(--text-3);margin:0;}
.cta-form{display:flex;flex-direction:column;gap:12px;}
.field-row{display:flex;gap:12px;}
.field-input{
  flex:1 1 auto;height:48px;padding:0 16px;
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(140,225,240,.22);
  color:var(--text);font-size:15px;font-family:inherit;
  transition:border-color .16s ease,box-shadow .16s ease,background-color .16s ease;
}
.field-input::placeholder{color:rgba(159,178,196,.55);}
.field-input:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(46,230,200,.16);
  background:rgba(255,255,255,.08);
}
.form-hint{font-size:13px;min-height:20px;color:var(--text-3);}
.form-hint.error{color:var(--coral);}
.form-hint.ok{color:var(--success);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .16s ease,box-shadow .16s ease,background-color .16s ease,border-color .16s ease,filter .16s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#2EE6C8,#33D6C0);
  color:#04161A;
  box-shadow:var(--shadow-primary);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:var(--shadow-primary-hover);transform:translateY(-1px);color:#04161A;}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(46,230,200,.24);}
.btn-ghost{
  background:transparent;color:var(--text);
  border:1px solid rgba(140,225,240,.3);
}
.btn-ghost:hover{border-color:rgba(46,230,200,.6);background:rgba(46,230,200,.08);color:#fff;}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:36px;padding:0 14px;font-size:13px;border-radius:10px;box-shadow:none;}
.btn-sm.btn-primary{box-shadow:0 6px 18px rgba(46,230,200,.22);}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--primary);font-weight:500;
}
.text-link i{transition:transform .16s ease;}
.text-link:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.text-link:hover i{transform:translateX(4px);}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:84px;padding:56px 0 0;
  background:linear-gradient(180deg,rgba(7,16,26,0),rgba(12,24,38,.9));
  border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px;}
.footer-brand .brand-main{font-size:17px;}
.footer-brand p{font-size:13px;color:var(--text-3);line-height:1.8;margin:10px 0 14px;max-width:280px;}
.footer-brand img{width:80px;height:48px;object-fit:cover;border-radius:10px;border:1px solid var(--line);}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:14px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13px;color:var(--text-3);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding:20px 0;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 28px;}
  .head-grid{gap:28px;}
  .faq-grid{grid-template-columns:1fr;gap:24px;}
  .cta-band{grid-template-columns:1fr;gap:24px;}
}
@media (max-width:1023px){
  .sidebar{
    width:280px;transform:translateX(-100%);
    transition:transform .24s ease;box-shadow:0 0 40px rgba(0,0,0,.5);
  }
  .sidebar.open{transform:translateX(0);}
  .topbar{display:flex;}
  .main-wrap{margin-left:0;}
  main{padding-top:84px;}
  .page-title{font-size:30px;}
  .head-grid{grid-template-columns:1fr;}
  .step-row{grid-template-columns:1fr;gap:24px;padding:20px;}
  .step-row.reverse .step-media{order:0;}
  .step-row.reverse .step-body{order:0;}
  .tip-grid{grid-template-columns:1fr;}
  .section{margin-top:56px;}
  .cta-band{padding:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .page-head{padding:26px 20px 26px;}
  .page-title{font-size:26px;}
  .section-head h2,.faq-intro h2,.cta-copy h2{font-size:22px;}
  .status-item{grid-template-columns:1fr auto;gap:12px;}
  .status-time{grid-column:1 / -1;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-brand img{width:96px;height:56px;}
  .field-row{flex-direction:column;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:479px){
  .page-title{font-size:24px;}
  .pill{font-size:12px;padding:0 10px;}
  .step-num{font-size:26px;}
  .section{margin-top:44px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category3 */
:root{
    --bg:#07101A;
    --panel:#0C1826;
    --panel-2:#101F30;
    --line:rgba(120,200,220,.14);
    --line-strong:rgba(140,225,240,.16);
    --text:#E6EEF5;
    --muted:#9FB2C4;
    --weak:#6B7F94;
    --primary:#2EE6C8;
    --primary-deep:#17A894;
    --accent:#6C7CFF;
    --coral:#FF6B5E;
    --ok:#4ADE80;
    --warn:#F5B544;
    --radius:16px;
    --radius-lg:20px;
    --sidebar:248px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    min-height:100vh;
    background:
      radial-gradient(900px 620px at 88% 4%, rgba(46,230,200,.10), transparent 62%),
      radial-gradient(760px 540px at 6% 96%, rgba(108,124,255,.09), transparent 64%),
      var(--bg);
    color:var(--text);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
    background-image:
      linear-gradient(rgba(120,200,220,.05) 1px, transparent 1px),
      linear-gradient(90deg, rgba(120,200,220,.05) 1px, transparent 1px);
    background-size:48px 48px;
    -webkit-mask-image:radial-gradient(circle at 50% 18%, #000 26%, transparent 82%);
    mask-image:radial-gradient(circle at 50% 18%, #000 26%, transparent 82%);
    opacity:.75;
  }
  h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:0;font-weight:700}
  p{margin:0 0 1em}
  p:last-child{margin-bottom:0}
  ul,ol{margin:0;padding:0;list-style:none}
  a{color:inherit;text-decoration:none}
  img{max-width:100%;display:block;border-radius:14px}
  button{font-family:inherit}
  ::selection{background:rgba(46,230,200,.3);color:#fff}
  ::-webkit-scrollbar{width:10px;height:10px}
  ::-webkit-scrollbar-track{background:transparent}
  ::-webkit-scrollbar-thumb{background:rgba(120,200,220,.22);border-radius:8px}
  ::-webkit-scrollbar-thumb:hover{background:rgba(120,200,220,.36)}

  /* ---------- 左侧导航 ---------- */
  .sidebar{
    position:fixed;
    top:0;left:0;bottom:0;
    width:var(--sidebar);
    z-index:50;
    display:flex;
    flex-direction:column;
    gap:18px;
    padding:24px 14px 20px;
    background:rgba(8,18,28,.9);
    border-right:1px solid var(--line);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    transition:transform .24s ease;
  }
  .brand{display:flex;align-items:center;gap:10px;padding:2px 8px 0}
  .brand-mark{
    width:38px;height:38px;flex:0 0 38px;border-radius:11px;
    display:grid;place-items:center;font-size:16px;color:#04161A;
    background:linear-gradient(140deg,#2EE6C8,#33D6C0);
    box-shadow:0 6px 18px rgba(46,230,200,.3);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
  .brand-main{font-size:16px;font-weight:700;color:#fff;white-space:nowrap}
  .brand-sub{font-size:12px;color:var(--primary);letter-spacing:.08em}
  .brand-note{
    margin:8px 8px 0;font-size:12px;line-height:1.5;color:var(--weak);
    padding-bottom:14px;border-bottom:1px solid var(--line);
  }
  .nav-list{display:flex;flex-direction:column;gap:4px}
  .nav-item{
    position:relative;
    display:flex;align-items:center;gap:12px;
    height:44px;padding:0 14px;border-radius:10px;
    color:var(--muted);font-size:15px;
    transition:background .16s ease,color .16s ease;
  }
  .nav-item i{width:18px;text-align:center;font-size:15px;flex:0 0 18px}
  .nav-item span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .nav-item:hover{background:rgba(255,255,255,.06);color:#fff}
  .nav-item:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
  .nav-item.active{background:rgba(46,230,200,.12);color:#fff}
  .nav-item.active::before{
    content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
    border-radius:3px;background:var(--primary);box-shadow:0 0 12px rgba(46,230,200,.65);
  }
  .side-status{
    margin-top:auto;
    padding:12px;
    border-radius:14px;
    border:1px solid var(--line-strong);
    background:rgba(255,255,255,.05);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  }
  .side-status img{width:100%;height:56px;object-fit:cover;border-radius:10px;opacity:.85}
  .side-status p{margin:10px 0 10px;font-size:12px;line-height:1.6;color:var(--weak)}
  .side-status .btn{width:100%}

  /* ---------- 顶部条（移动） ---------- */
  .topbar{display:none}
  .drawer-mask{
    display:none;position:fixed;inset:0;z-index:45;
    background:rgba(4,10,18,.72);backdrop-filter:blur(2px);
  }
  body.drawer-open .drawer-mask{display:block}

  /* ---------- 主内容 ---------- */
  .app-main{
    position:relative;z-index:1;
    margin-left:var(--sidebar);
    min-height:100vh;
    display:flex;flex-direction:column;
  }
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
  main{flex:1 1 auto;padding-top:24px}

  /* ---------- 通用组件 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;border-radius:12px;
    font-size:15px;font-weight:600;line-height:1;cursor:pointer;
    border:1px solid transparent;
    transition:transform .16s ease,box-shadow .16s ease,filter .16s ease,border-color .16s ease,background .16s ease;
  }
  .btn:focus-visible{outline:2px solid #E6EEF5;outline-offset:2px}
  .btn-primary{
    background:linear-gradient(135deg,#2EE6C8,#33D6C0);
    color:#04161A;
    box-shadow:0 8px 24px rgba(46,230,200,.28);
  }
  .btn-primary:hover{filter:brightness(1.08);box-shadow:0 10px 30px rgba(46,230,200,.38);transform:translateY(-1px)}
  .btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(46,230,200,.26)}
  .btn-ghost{background:transparent;border-color:rgba(140,225,240,.3);color:var(--text)}
  .btn-ghost:hover{border-color:rgba(46,230,200,.6);background:rgba(46,230,200,.08)}
  .btn-sm{height:38px;padding:0 16px;font-size:13px;border-radius:10px}
  .btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    height:24px;padding:0 10px;border-radius:999px;
    font-size:12px;letter-spacing:.04em;line-height:1;
    border:1px solid var(--line-strong);color:var(--muted);white-space:nowrap;
  }
  .badge-violet{border-color:rgba(108,124,255,.5);color:#A8B2FF;background:rgba(108,124,255,.08)}
  .badge-cyan{border-color:rgba(46,230,200,.42);color:var(--primary);background:rgba(46,230,200,.08)}
  .badge-coral{border-color:rgba(255,107,94,.45);color:#FF9C93;background:rgba(255,107,94,.09)}
  .badge-plain{border-color:transparent;background:rgba(255,255,255,.08);color:var(--muted)}

  .glass{
    background:rgba(255,255,255,.05);
    border:1px solid var(--line-strong);
    border-radius:var(--radius);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
  }

  .section{padding:0 0 72px}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:26px}
  .sec-title{
    position:relative;padding-left:14px;font-size:28px;line-height:1.3;
  }
  .sec-title::before{
    content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;
    background:linear-gradient(180deg,#2EE6C8,#17A894);
    box-shadow:0 0 14px rgba(46,230,200,.45);
  }
  .sec-desc{margin:10px 0 0;font-size:14px;color:var(--muted)}
  .textlink{
    display:inline-flex;align-items:center;gap:8px;
    font-size:14px;color:var(--primary);white-space:nowrap;
  }
  .textlink i{transition:transform .16s ease}
  .textlink:hover{text-decoration:underline;text-underline-offset:4px}
  .textlink:hover i{transform:translateX(4px)}

  /* ---------- 分类导语 ---------- */
  .page-hero{padding:36px 0 44px;border-bottom:1px solid var(--line);margin-bottom:48px}
  .crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--weak);margin-bottom:18px}
  .crumb a{color:var(--weak);transition:color .16s}
  .crumb a:hover{color:var(--primary)}
  .crumb .sep{color:rgba(120,200,220,.3)}
  .crumb .now{color:var(--muted)}
  .hero-row{display:grid;grid-template-columns:1fr 340px;gap:40px;align-items:center}
  h1.page-title{font-size:40px;line-height:1.28}
  h1.page-title em{font-style:normal;color:var(--primary)}
  .hero-lead{margin:16px 0 0;font-size:16px;color:var(--muted);line-height:1.8;max-width:56ch}
  .version-card{
    padding:20px 22px;border-radius:var(--radius-lg);
    border:1px solid var(--line-strong);
    background:rgba(255,255,255,.05);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
  }
  .vc-label{display:flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--primary)}
  .vc-num{
    display:block;margin:10px 0 6px;
    font-family:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace;
    font-size:32px;font-weight:600;line-height:1.1;color:#fff;
    font-variant-numeric:tabular-nums;
  }
  .vc-time{font-size:13px;color:var(--weak);font-variant-numeric:tabular-nums}

  /* ---------- 本版要点 ---------- */
  .stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
  .stat-card{
    padding:22px 20px;border-radius:var(--radius);
    border:1px solid var(--line-strong);
    background:var(--panel);
    transition:transform .2s ease,border-color .2s ease;
  }
  .stat-card:hover{transform:translateY(-2px);border-color:rgba(46,230,200,.32)}
  .stat-num{
    display:block;
    font-family:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace;
    font-size:34px;font-weight:600;line-height:1;color:var(--primary);
    font-variant-numeric:tabular-nums;
  }
  .stat-name{display:block;margin-top:12px;font-size:16px;color:var(--text)}
  .stat-note{display:block;margin-top:6px;font-size:13px;color:var(--weak);line-height:1.6}
  .stat-media{position:relative;overflow:hidden;padding:0;border-radius:var(--radius);border:1px solid var(--line-strong)}
  .stat-media img{width:100%;height:100%;min-height:150px;object-fit:cover;border-radius:0;opacity:.8}
  .stat-media figcaption{
    position:absolute;left:0;right:0;bottom:0;padding:14px 16px;
    font-size:13px;color:var(--text);
    background:linear-gradient(180deg,transparent,rgba(7,16,26,.92));
  }

  /* ---------- 变更记录 ---------- */
  .log-panel{border:1px solid var(--line-strong);border-radius:var(--radius-lg);background:var(--panel);overflow:hidden}
  .log-list{border-top:1px solid var(--line)}
  .log-list li{border-bottom:1px solid var(--line)}
  .log-list li:last-child{border-bottom:none}
  .log-row{
    display:grid;grid-template-columns:118px 1fr 190px;gap:24px;align-items:center;
    padding:20px 22px;border-left:3px solid transparent;
    transition:background .18s ease,border-color .18s ease;
  }
  .log-row:hover{background:rgba(46,230,200,.05);border-left-color:var(--primary)}
  .log-row:focus-visible{outline:2px solid var(--primary);outline-offset:-2px}
  .log-ver{
    display:inline-flex;align-items:center;justify-content:center;
    padding:5px 10px;border-radius:999px;
    font-family:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace;
    font-size:14px;font-weight:600;color:var(--primary);
    background:rgba(46,230,200,.08);border:1px solid rgba(46,230,200,.3);
    font-variant-numeric:tabular-nums;
  }
  .log-title{display:block;font-size:17px;font-weight:600;color:var(--text);line-height:1.5}
  .log-points{display:flex;flex-direction:column;gap:4px;margin-top:8px}
  .log-points span{
    position:relative;padding-left:14px;font-size:14px;color:var(--muted);
    line-height:1.65;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  }
  .log-points span::before{
    content:"";position:absolute;left:0;top:.68em;width:5px;height:5px;border-radius:1px;
    background:rgba(46,230,200,.75);
  }
  .log-meta{display:flex;align-items:center;justify-content:flex-end;gap:14px}
  .log-meta time{
    font-family:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace;
    font-size:13px;color:var(--weak);font-variant-numeric:tabular-nums;white-space:nowrap;
  }
  .log-arrow{
    display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--primary);
    transition:transform .16s ease;
  }
  .log-row:hover .log-arrow{transform:translateX(4px)}
  .log-foot{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
    padding:16px 22px;border-top:1px solid var(--line);background:rgba(255,255,255,.03);
    font-size:13px;color:var(--weak);
  }

  /* ---------- 发布节奏 ---------- */
  .flow-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:center}
  .flow-list{display:flex;flex-direction:column;gap:0;border-left:1px solid var(--line);margin-left:10px}
  .flow-item{position:relative;padding:0 0 26px 26px}
  .flow-item:last-child{padding-bottom:0}
  .flow-item::before{
    content:"";position:absolute;left:-6px;top:8px;width:11px;height:11px;border-radius:50%;
    background:var(--bg);border:2px solid rgba(46,230,200,.55);
  }
  .flow-item.is-now::before{background:var(--primary);border-color:var(--primary);box-shadow:0 0 12px rgba(46,230,200,.7)}
  .flow-step{
    font-family:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace;
    font-size:13px;color:var(--primary);letter-spacing:.08em;font-variant-numeric:tabular-nums;
  }
  .flow-item h3{font-size:18px;margin:6px 0 6px}
  .flow-item p{font-size:14px;color:var(--muted);line-height:1.75;margin:0}
  .flow-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line-strong)}
  .flow-media img{width:100%;height:320px;object-fit:cover;border-radius:0}
  .flow-media::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(7,16,26,.15),rgba(7,16,26,.85));
  }
  .flow-media figcaption{
    position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
    font-size:14px;color:var(--muted);
  }
  .flow-media .fm-tag{display:inline-flex;margin-bottom:8px}

  /* ---------- 版本号说明 ---------- */
  .rule-wrap{display:grid;grid-template-columns:1fr 1fr;gap:32px}
  .rule-card{
    padding:26px;border-radius:var(--radius-lg);
    border:1px solid var(--line-strong);background:var(--panel);
  }
  .rule-card h3{font-size:20px;margin-bottom:10px}
  .rule-card > p{font-size:15px;color:var(--muted);line-height:1.8}
  .rule-items{margin-top:18px;display:flex;flex-direction:column;gap:12px}
  .rule-item{display:flex;gap:14px;align-items:flex-start;padding-top:12px;border-top:1px solid var(--line)}
  .rule-item:first-child{border-top:none;padding-top:0}
  .rule-key{
    flex:0 0 auto;padding:2px 10px;border-radius:8px;font-size:12px;line-height:1.8;
    font-family:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace;
    color:var(--primary);background:rgba(46,230,200,.08);border:1px solid rgba(46,230,200,.24);
  }
  .rule-item p{margin:0;font-size:14px;color:var(--muted);line-height:1.75}
  .check-list{display:flex;flex-direction:column;gap:12px;margin-top:16px}
  .check-list li{display:flex;gap:10px;font-size:14px;color:var(--muted);line-height:1.75}
  .check-list i{color:var(--primary);font-size:13px;margin-top:.45em}

  /* ---------- FAQ ---------- */
  .faq-wrap{display:grid;grid-template-columns:.36fr .64fr;gap:40px}
  .faq-intro p{font-size:14px;color:var(--muted);line-height:1.8}
  .faq{border-top:1px solid var(--line)}
  .faq details{border-bottom:1px solid var(--line)}
  .faq summary{
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    min-height:60px;padding:14px 4px;cursor:pointer;
    font-size:16px;color:var(--text);list-style:none;
    transition:color .16s ease;
  }
  .faq summary::-webkit-details-marker{display:none}
  .faq summary:hover{color:var(--primary)}
  .faq summary:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
  .faq .ic{
    flex:0 0 auto;width:22px;height:22px;display:grid;place-items:center;
    border-radius:50%;border:1px solid rgba(46,230,200,.35);color:var(--primary);
    font-size:10px;transition:transform .2s ease;
  }
  .faq details[open] .ic{transform:rotate(180deg)}
  .faq .ans{padding:0 4px 20px;font-size:15px;line-height:1.85;color:var(--muted);max-width:66ch}

  /* ---------- 订阅 ---------- */
  .subscribe{
    display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;
    padding:32px;border-radius:var(--radius-lg);
    border:1px solid var(--line-strong);
    background:linear-gradient(120deg,rgba(46,230,200,.07),rgba(108,124,255,.06)),rgba(12,24,38,.9);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  }
  .subscribe h2{font-size:26px;line-height:1.35}
  .subscribe p{font-size:14px;color:var(--muted);margin:10px 0 0}
  .sub-note{font-size:12px;color:var(--weak)}
  .sub-form{display:flex;gap:12px}
  .input{
    height:48px;width:100%;border-radius:12px;padding:0 16px;
    background:rgba(255,255,255,.06);border:1px solid var(--line-strong);
    color:var(--text);font-size:15px;font-family:inherit;
    transition:border-color .16s ease,box-shadow .16s ease;
  }
  .input::placeholder{color:rgba(159,178,196,.55)}
  .input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(46,230,200,.18)}
  .form-msg{min-height:22px;margin-top:10px;font-size:14px;color:var(--weak)}
  .form-msg.is-ok{color:var(--ok)}
  .form-msg.is-err{color:var(--coral)}

  /* ---------- 页脚 ---------- */
  .site-footer{
    margin-top:auto;
    border-top:1px solid var(--line);
    background:rgba(8,18,28,.72);
    padding:48px 0 0;
  }
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
  .footer-brand .brand-main{display:block;font-size:18px;color:#fff;font-weight:700}
  .footer-brand p{margin:12px 0 16px;font-size:13px;color:var(--weak);line-height:1.75;max-width:32ch}
  .footer-brand img{width:88px;height:48px;object-fit:cover;border-radius:8px;opacity:.75}
  .footer-col h4{font-size:14px;color:var(--text);margin-bottom:14px;font-weight:600}
  .footer-col li{margin-bottom:10px}
  .footer-col a{font-size:13px;color:var(--weak);transition:color .16s ease}
  .footer-col a:hover{color:#fff}
  .footer-col a:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
  .footer-bottom{
    margin-top:36px;padding:16px 0;border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
    font-size:13px;color:var(--weak);
  }

  /* ---------- 响应式 ---------- */
  @media (min-width:1024px) and (max-width:1279px){
    :root{--sidebar:88px}
    .sidebar{padding:22px 10px;align-items:center}
    .brand{justify-content:center;padding:0}
    .brand-text,.brand-note{display:none}
    .nav-list{width:100%;align-items:center}
    .nav-item{width:48px;justify-content:center;padding:0}
    .nav-item i{width:auto;flex:0 0 auto;font-size:17px}
    .nav-item span{
      position:absolute;left:calc(100% + 12px);top:50%;transform:translateY(-50%) translateX(0);
      display:block;padding:6px 12px;border-radius:10px;font-size:12px;white-space:nowrap;
      color:var(--text);background:rgba(12,24,38,.97);border:1px solid var(--line-strong);
      opacity:0;pointer-events:none;transition:opacity .16s ease,transform .16s ease;z-index:60;
    }
    .nav-item:hover span,.nav-item:focus-visible span{opacity:1;transform:translateY(-50%) translateX(4px)}
    .side-status{width:100%;padding:8px}
    .side-status img{height:44px}
    .side-status p{display:none}
    .side-status .btn{padding:0 8px;font-size:12px}
  }

  @media (max-width:1279px){
    .hero-row{grid-template-columns:1fr;gap:24px;align-items:start}
    h1.page-title{font-size:34px}
    .version-card{max-width:360px}
    .stat-grid{grid-template-columns:repeat(2,1fr)}
    .rule-wrap{grid-template-columns:1fr}
    .flow-wrap{grid-template-columns:1fr}
    .flow-media img{height:240px}
    .faq-wrap{grid-template-columns:1fr;gap:24px}
  }

  @media (max-width:1023px){
    .topbar{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      position:fixed;top:0;left:0;right:0;height:60px;padding:0 18px;z-index:60;
      background:rgba(8,18,28,.94);border-bottom:1px solid var(--line);
      backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    }
    .topbar .brand{padding:0}
    .topbar .brand-mark{width:32px;height:32px;flex:0 0 32px;font-size:14px;border-radius:9px}
    .topbar .brand-main{font-size:15px}
    .hamburger{
      width:40px;height:40px;display:grid;place-items:center;border-radius:10px;
      background:rgba(255,255,255,.06);border:1px solid var(--line-strong);
      color:var(--text);font-size:16px;cursor:pointer;transition:background .16s ease;
    }
    .hamburger:hover{background:rgba(255,255,255,.12)}
    .hamburger:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
    .sidebar{
      width:280px;transform:translateX(-100%);
      box-shadow:24px 0 48px rgba(0,0,0,.45);
    }
    body.drawer-open .sidebar{transform:translateX(0)}
    body.drawer-open{overflow:hidden}
    .app-main{margin-left:0;padding-top:60px}
    .container{padding:0 20px}
    main{padding-top:12px}
    .section{padding-bottom:56px}
    .page-hero{padding:26px 0 32px;margin-bottom:36px}
    h1.page-title{font-size:28px}
    .sec-title{font-size:22px}
    .log-row{grid-template-columns:1fr;gap:12px;padding:18px 16px}
    .log-meta{justify-content:space-between}
    .log-points span{white-space:normal}
    .stat-grid{grid-template-columns:1fr 1fr;gap:14px}
    .subscribe{grid-template-columns:1fr;padding:24px 18px}
    .sub-form{flex-direction:column}
    .sub-form .btn{width:100%}
    .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
    .footer-bottom{flex-direction:column;align-items:flex-start}
  }

  @media (max-width:520px){
    h1.page-title{font-size:26px}
    .hero-lead{font-size:15px}
    .stat-grid{grid-template-columns:1fr}
    .stat-media img{min-height:170px}
    .log-title{font-size:16px}
    .subscribe h2{font-size:22px}
    .footer-grid{grid-template-columns:1fr}
    .faq summary{font-size:15px}
    .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  }

  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  }

/* roulang page: category4 */
:root{
    --bg:#07101A;
    --panel-1:#0C1826;
    --panel-2:#101F30;
    --line:rgba(120,200,220,.14);
    --line-strong:rgba(140,225,240,.28);
    --text:#E6EEF5;
    --muted:#9FB2C4;
    --weak:#6B7F94;
    --main:#2EE6C8;
    --main-deep:#17A894;
    --iris:#6C7CFF;
    --coral:#FF6B5E;
    --radius:16px;
    --radius-lg:20px;
    --sidebar-w:248px;
  }
  *{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    padding:0;
    background:var(--bg);
    color:var(--text);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;text-decoration:none;}
  img{max-width:100%;display:block;}
  button{font-family:inherit;}
  ul,ol{list-style:none;margin:0;padding:0;}
  h1,h2,h3,h4,p{margin:0;}
  ::selection{background:rgba(46,230,200,.3);color:#F4FFFD;}
  ::-webkit-scrollbar{width:10px;height:10px;}
  ::-webkit-scrollbar-track{background:transparent;}
  ::-webkit-scrollbar-thumb{background:rgba(120,200,220,.22);border-radius:8px;}
  .sr-only{
    position:absolute;width:1px;height:1px;padding:0;margin:-1px;
    overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
  }

  /* ============ 左侧 App Shell ============ */
  .app-sidebar{
    position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);
    display:flex;flex-direction:column;
    padding:22px 16px 18px;
    background:linear-gradient(180deg,#0A1522 0%,#08121D 100%);
    border-right:1px solid var(--line);
    z-index:60;
    overflow-y:auto;
  }
  .sidebar-brand{padding:2px 6px 18px;border-bottom:1px solid var(--line);}
  .brand-link{display:flex;flex-direction:column;line-height:1.25;}
  .brand-line{
    font-size:19px;font-weight:700;letter-spacing:0;color:#F2FBFF;
  }
  .brand-sub{
    font-size:12px;letter-spacing:.14em;color:var(--main);margin-top:4px;
  }
  .brand-note{
    margin-top:10px;font-size:12px;color:var(--weak);letter-spacing:.04em;
  }
  .nav-list{display:flex;flex-direction:column;gap:6px;padding:18px 0 0;flex:1;}
  .nav-item{
    position:relative;
    display:flex;align-items:center;gap:12px;
    height:44px;padding:0 12px 0 18px;border-radius:10px;
    color:var(--muted);font-size:16px;
    transition:background .16s ease,color .16s ease;
  }
  .nav-item i{width:18px;text-align:center;font-size:15px;flex:0 0 18px;}
  .nav-item:hover{background:rgba(255,255,255,.06);color:#FFFFFF;}
  .nav-item:focus-visible{outline:2px solid var(--main);outline-offset:2px;}
  .nav-item.active{background:rgba(46,230,200,.12);color:#FFFFFF;}
  .nav-item.active i{color:var(--main);}
  .nav-item.active::before{
    content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
    border-radius:3px;background:var(--main);box-shadow:0 0 10px rgba(46,230,200,.55);
  }
  .sidebar-foot{
    margin-top:18px;padding:14px;border-radius:14px;
    background:rgba(255,255,255,.05);
    border:1px solid rgba(140,225,240,.16);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  }
  .side-thumb{width:88px;height:56px;object-fit:cover;border-radius:8px;}
  .side-updated{font-size:12px;color:var(--weak);margin-top:10px;font-variant-numeric:tabular-nums;}
  .btn-sm{height:36px;padding:0 14px;font-size:13px;border-radius:10px;width:100%;margin-top:10px;}

  /* ============ 移动端顶栏 / 抽屉 ============ */
  .mobile-bar{display:none;}
  .drawer-mask{display:none;}

  /* ============ 主内容区 ============ */
  .main-shell{
    margin-left:var(--sidebar-w);
    min-height:100vh;
    padding-top:40px;
    position:relative;
    background-image:
      linear-gradient(rgba(120,200,220,.045) 1px,transparent 1px),
      linear-gradient(90deg,rgba(120,200,220,.045) 1px,transparent 1px);
    background-size:64px 64px;
  }
  .main-shell::before{
    content:"";
    position:fixed;right:-8%;top:-18%;width:640px;height:640px;
    background:radial-gradient(circle,rgba(46,230,200,.18) 0%,rgba(46,230,200,0) 62%);
    pointer-events:none;z-index:0;
  }
  .container{
    position:relative;z-index:1;
    max-width:1200px;margin:0 auto;padding:0 32px;
  }

  /* ============ 组件：按钮 / 标签 / 玻璃 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;border-radius:12px;
    font-size:15px;font-weight:600;line-height:1;
    border:1px solid transparent;cursor:pointer;
    transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,filter .18s ease;
  }
  .btn-primary{
    background:linear-gradient(135deg,#2EE6C8 0%,#33D6C0 100%);
    color:#04161A;
    box-shadow:0 8px 24px rgba(46,230,200,.28);
  }
  .btn-primary:hover{filter:brightness(1.08);box-shadow:0 10px 30px rgba(46,230,200,.38);transform:translateY(-1px);}
  .btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(46,230,200,.3);}
  .btn-ghost{
    background:transparent;border:1px solid rgba(140,225,240,.3);color:var(--text);
  }
  .btn-ghost:hover{border-color:rgba(46,230,200,.6);background:rgba(46,230,200,.08);}
  .btn:focus-visible{outline:2px solid #E6EEF5;outline-offset:2px;}
  .btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

  .text-link{
    display:inline-flex;align-items:center;gap:6px;
    font-size:14px;color:var(--main);
    transition:color .16s ease;
  }
  .text-link i{transition:transform .18s ease;}
  .text-link:hover{color:#7CF3DF;}
  .text-link:hover i{transform:translateX(4px);}
  .text-link:focus-visible{outline:2px solid var(--main);outline-offset:3px;border-radius:4px;}

  .tag{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;
    border-radius:999px;font-size:12px;line-height:1;
    background:rgba(255,255,255,.08);color:var(--muted);
  }
  .tag-iris{border:1px solid rgba(108,124,255,.5);background:rgba(108,124,255,.1);color:#B8C2FF;}

  /* ============ 分类导语区 ============ */
  .page-head{
    position:relative;
    display:grid;grid-template-columns:minmax(0,1fr) auto;
    gap:32px;align-items:center;
    padding:34px 36px;
    border-radius:var(--radius-lg);
    background:rgba(255,255,255,.05);
    border:1px solid rgba(140,225,240,.16);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
    backdrop-filter:blur(14px);
    overflow:hidden;
  }
  .page-head::after{
    content:"";
    position:absolute;inset:0;
    background-image:
      linear-gradient(rgba(140,225,240,.08) 1px,transparent 1px),
      linear-gradient(90deg,rgba(140,225,240,.08) 1px,transparent 1px);
    background-size:32px 32px;
    opacity:.35;pointer-events:none;
  }
  .page-head-main{position:relative;z-index:1;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;letter-spacing:.08em;color:var(--main);
    text-transform:uppercase;margin-bottom:12px;
  }
  .eyebrow::before{
    content:"";width:18px;height:2px;border-radius:2px;background:var(--main);
  }
  .page-head h1{
    font-size:40px;line-height:1.3;letter-spacing:-0.01em;font-weight:700;color:#F4FBFF;
  }
  .page-head p{
    margin-top:14px;font-size:16px;color:var(--muted);max-width:640px;line-height:1.75;
  }
  .page-head-stat{
    position:relative;z-index:1;
    display:flex;gap:14px;
    padding:16px 20px;border-radius:14px;
    background:rgba(12,24,38,.72);
    border:1px solid rgba(140,225,240,.16);
  }
  .stat-item{display:flex;flex-direction:column;align-items:center;min-width:76px;}
  .stat-item + .stat-item{border-left:1px solid var(--line);padding-left:16px;}
  .stat-num{
    font-family:"DIN Alternate","Bahnschrift",ui-monospace,monospace;
    font-size:24px;font-weight:600;color:var(--main);
    font-variant-numeric:tabular-nums;line-height:1.2;
  }
  .stat-label{font-size:12px;color:var(--weak);margin-top:4px;}

  /* ============ 板块通用 ============ */
  .section{margin-top:72px;}
  .section-head{
    display:flex;align-items:flex-end;justify-content:space-between;
    gap:24px;flex-wrap:wrap;margin-bottom:26px;
  }
  .section-title{
    display:flex;align-items:center;gap:12px;
    font-size:28px;line-height:1.3;font-weight:700;color:#F2FBFF;
  }
  .section-title::before{
    content:"";width:4px;height:24px;border-radius:2px;background:var(--main);
    box-shadow:0 0 12px rgba(46,230,200,.5);
  }
  .section-desc{font-size:14px;color:var(--weak);margin-top:8px;}
  .section-desc-block{max-width:640px;}

  /* ============ 筛选条 ============ */
  .filter-bar{display:flex;flex-wrap:wrap;gap:10px;}
  .chip{
    height:36px;padding:0 18px;border-radius:999px;
    font-size:14px;color:var(--muted);
    background:rgba(255,255,255,.04);
    border:1px solid rgba(140,225,240,.16);
    cursor:pointer;transition:all .18s ease;
    display:inline-flex;align-items:center;
  }
  .chip:hover{color:#FFFFFF;border-color:rgba(46,230,200,.45);background:rgba(46,230,200,.07);}
  .chip:focus-visible{outline:2px solid var(--main);outline-offset:2px;}
  .chip.is-active{
    background:rgba(46,230,200,.14);
    border-color:rgba(46,230,200,.5);
    color:#E9FFFB;
  }

  /* ============ 规则卡片网格 ============ */
  .rule-grid{
    display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
    gap:24px;margin-top:26px;
  }
  .rule-card{
    display:flex;flex-direction:column;
    background:rgba(255,255,255,.05);
    border:1px solid rgba(140,225,240,.16);
    border-radius:var(--radius);
    overflow:hidden;
    transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .rule-card:hover{
    transform:translateY(-2px);
    border-color:rgba(46,230,200,.35);
    box-shadow:0 14px 32px rgba(0,0,0,.3);
  }
  .rule-card:focus-within{border-color:rgba(46,230,200,.45);}
  .rule-card-cover{
    position:relative;overflow:hidden;aspect-ratio:4/3;
    background:#0A1522;
  }
  .rule-card-cover img{
    width:100%;height:100%;object-fit:cover;
    transition:transform .45s ease;
  }
  .rule-card:hover .rule-card-cover img{transform:scale(1.04);}
  .rule-card-cover::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(7,16,26,.05) 0%,rgba(7,16,26,.55) 100%);
    pointer-events:none;
  }
  .cover-badge{
    position:absolute;left:14px;top:14px;z-index:2;
    display:inline-flex;align-items:center;height:24px;padding:0 10px;
    border-radius:999px;font-size:12px;line-height:1;
    background:rgba(46,230,200,.16);
    border:1px solid rgba(46,230,200,.55);
    color:#A9FFF0;backdrop-filter:blur(6px);
  }
  .rule-card-body{padding:20px;display:flex;flex-direction:column;flex:1;}
  .rule-card-body h3{
    font-size:17px;line-height:1.5;font-weight:600;color:#F2FBFF;
  }
  .rule-card-body p{
    margin-top:8px;font-size:14px;color:var(--muted);line-height:1.75;
  }
  .rule-card-foot{
    margin-top:auto;padding-top:16px;
    display:flex;align-items:center;justify-content:space-between;gap:12px;
  }
  .rule-card.is-feature{
    grid-column:span 2;flex-direction:row;
  }
  .rule-card.is-feature .rule-card-cover{
    flex:0 0 46%;aspect-ratio:auto;min-height:100%;
  }
  .rule-card.is-feature .rule-card-body{padding:26px;}
  .rule-card.is-feature .rule-card-body h3{font-size:20px;}
  .rule-card.is-feature .rule-card-body p{font-size:15px;max-width:420px;}

  /* ============ 核对步骤 ============ */
  .step-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .step-card{
    position:relative;
    padding:26px 24px;
    border-radius:var(--radius);
    background:rgba(12,24,38,.72);
    border:1px solid rgba(140,225,240,.16);
    transition:border-color .2s ease,transform .2s ease;
  }
  .step-card:hover{border-color:rgba(46,230,200,.32);transform:translateY(-2px);}
  .step-num{
    font-family:"DIN Alternate","Bahnschrift",ui-monospace,monospace;
    font-size:32px;font-weight:600;line-height:1;
    color:rgba(46,230,200,.32);font-variant-numeric:tabular-nums;
  }
  .step-card h3{font-size:18px;font-weight:600;color:#EFFAFE;margin-top:14px;}
  .step-card p{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.8;}

  /* ============ 理解偏差 ============ */
  .myth-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .myth-item{
    display:flex;gap:14px;
    padding:18px 20px;border-radius:14px;
    background:rgba(255,255,255,.04);
    border:1px solid var(--line);
    transition:background .18s ease,border-color .18s ease;
  }
  .myth-item:hover{background:rgba(255,255,255,.06);border-color:rgba(140,225,240,.26);}
  .myth-icon{
    flex:0 0 34px;width:34px;height:34px;border-radius:10px;
    display:flex;align-items:center;justify-content:center;
    background:rgba(108,124,255,.14);color:#B8C2FF;font-size:14px;
  }
  .myth-item h4{font-size:16px;font-weight:600;color:#EFFAFE;}
  .myth-item p{margin-top:6px;font-size:14px;color:var(--muted);line-height:1.75;}

  /* ============ FAQ ============ */
  .faq-layout{display:grid;grid-template-columns:32% minmax(0,1fr);gap:40px;}
  .faq-intro h2{font-size:28px;line-height:1.35;font-weight:700;color:#F2FBFF;}
  .faq-intro p{margin-top:14px;font-size:14px;color:var(--muted);line-height:1.8;}
  .faq-list{border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    min-height:60px;padding:12px 4px 12px 0;
    font-size:16px;color:#EAF4FA;cursor:pointer;list-style:none;
    transition:color .18s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--main);}
  .faq-item summary:focus-visible{outline:2px solid var(--main);outline-offset:2px;border-radius:6px;}
  .faq-item summary::after{
    content:"+";font-size:22px;line-height:1;color:var(--main);
    transition:transform .22s ease;flex:0 0 auto;
  }
  .faq-item[open] summary::after{transform:rotate(45deg);}
  .faq-item p{
    font-size:15px;color:var(--muted);line-height:1.8;
    padding:0 40px 20px 0;
  }

  /* ============ 订阅 CTA ============ */
  .subscribe-panel{
    display:grid;grid-template-columns:minmax(0,1fr) minmax(0,460px);
    gap:36px;align-items:center;
    padding:34px 36px;border-radius:var(--radius-lg);
    background:rgba(255,255,255,.05);
    border:1px solid rgba(140,225,240,.16);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
    backdrop-filter:blur(14px);
  }
  .subscribe-panel h2{font-size:26px;line-height:1.35;font-weight:700;color:#F2FBFF;}
  .subscribe-panel p{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.8;}
  .privacy-note{margin-top:10px;font-size:12px;color:var(--weak);}
  .subscribe-form{display:flex;gap:12px;}
  .field{
    flex:1;min-width:0;height:48px;padding:0 16px;
    border-radius:12px;
    background:rgba(255,255,255,.06);
    border:1px solid rgba(140,225,240,.22);
    color:var(--text);font-size:15px;outline:none;
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .field::placeholder{color:rgba(159,178,196,.6);}
  .field:focus{border-color:rgba(46,230,200,.7);box-shadow:0 0 0 3px rgba(46,230,200,.18);}
  .form-hint{
    margin-top:12px;font-size:13px;min-height:20px;color:var(--weak);
    transition:color .18s ease;
  }
  .form-hint.is-error{color:var(--coral);}
  .form-hint.is-ok{color:#4ADE80;}

  /* ============ 页脚 ============ */
  .site-footer{
    margin-top:96px;
    border-top:1px solid var(--line);
    background:rgba(10,21,34,.6);
    padding-top:52px;
  }
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;
  }
  .footer-brand .brand-main{
    font-size:17px;font-weight:700;color:#F2FBFF;
  }
  .footer-brand p{
    margin-top:10px;font-size:13px;color:var(--weak);line-height:1.8;max-width:280px;
  }
  .footer-brand img{
    width:80px;height:48px;object-fit:cover;border-radius:8px;margin-top:14px;
    border:1px solid var(--line);
  }
  .footer-col h4{
    font-size:14px;font-weight:600;color:#DDEBF4;margin-bottom:14px;letter-spacing:.02em;
  }
  .footer-col ul{display:grid;gap:10px;}
  .footer-col a{
    font-size:14px;color:var(--weak);transition:color .16s ease;
  }
  .footer-col a:hover{color:#FFFFFF;}
  .footer-col a:focus-visible{outline:2px solid var(--main);outline-offset:2px;border-radius:4px;}
  .footer-bottom{
    margin-top:40px;border-top:1px solid var(--line);
    padding:18px 0 22px;
    display:flex;justify-content:space-between;align-items:center;
    gap:12px;flex-wrap:wrap;
    font-size:13px;color:var(--weak);
    font-variant-numeric:tabular-nums;
  }

  /* ============ 断点 ============ */
  @media (max-width:1279px) and (min-width:1024px){
    :root{--sidebar-w:88px;}
    .app-sidebar{padding:20px 10px;align-items:center;}
    .sidebar-brand{padding:2px 0 16px;width:100%;text-align:center;}
    .brand-link{align-items:center;}
    .brand-line{font-size:15px;letter-spacing:0;}
    .brand-sub{font-size:10px;letter-spacing:.04em;margin-top:2px;}
    .brand-note{display:none;}
    .nav-list{width:100%;align-items:center;}
    .nav-item{padding:0;justify-content:center;width:48px;gap:0;}
    .nav-item span{display:none;}
    .nav-item i{font-size:17px;}
    .nav-item:hover::after,
    .nav-item:focus-visible::after{
      content:attr(data-label);
      position:absolute;left:62px;top:50%;transform:translateY(-50%);
      padding:6px 12px;border-radius:8px;
      background:rgba(16,31,48,.96);
      border:1px solid rgba(140,225,240,.24);
      color:#E6EEF5;font-size:12px;white-space:nowrap;z-index:80;
      box-shadow:0 8px 20px rgba(0,0,0,.35);
    }
    .sidebar-foot{width:100%;padding:10px 8px;text-align:center;}
    .side-thumb{width:56px;height:40px;margin:0 auto;}
    .side-updated{font-size:10px;}
    .btn-sm{padding:0 8px;font-size:11px;}
    .rule-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .rule-card.is-feature{grid-column:span 2;}
  }

  @media (max-width:1023px){
    .app-sidebar{
      width:280px;transform:translateX(-100%);
      transition:transform .26s ease;
      box-shadow:12px 0 40px rgba(0,0,0,.45);
      padding:22px 16px 18px;
    }
    .app-sidebar.open{transform:translateX(0);}
    .drawer-mask{
      display:block;position:fixed;inset:0;z-index:55;
      background:rgba(4,10,18,.72);
    }
    .mobile-bar{
      display:flex;align-items:center;justify-content:space-between;
      position:fixed;top:0;left:0;right:0;height:60px;
      padding:0 20px;z-index:50;
      background:rgba(8,18,29,.94);
      border-bottom:1px solid var(--line);
      backdrop-filter:blur(12px);
    }
    .mobile-bar .brand-link{flex-direction:row;align-items:baseline;gap:6px;}
    .mobile-bar .brand-line{font-size:17px;}
    .mobile-bar .brand-sub{font-size:11px;letter-spacing:.08em;margin-top:0;}
    .menu-toggle{
      width:40px;height:40px;border-radius:10px;
      display:flex;align-items:center;justify-content:center;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(140,225,240,.18);
      color:var(--text);font-size:16px;cursor:pointer;
      transition:background .18s ease,border-color .18s ease;
    }
    .menu-toggle:hover{background:rgba(46,230,200,.12);border-color:rgba(46,230,200,.4);}
    .menu-toggle:focus-visible{outline:2px solid var(--main);outline-offset:2px;}
    .main-shell{margin-left:0;padding-top:84px;}
    .container{padding:0 24px;}
    .page-head{grid-template-columns:minmax(0,1fr);padding:28px;}
    .page-head h1{font-size:30px;}
    .page-head-stat{justify-content:flex-start;}
    .section{margin-top:56px;}
    .step-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .faq-layout{grid-template-columns:1fr;gap:24px;}
    .subscribe-panel{grid-template-columns:1fr;padding:28px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
    .footer-brand{grid-column:span 2;}
  }

  @media (max-width:767px){
    .container{padding:0 20px;}
    .page-head{padding:24px 20px;}
    .page-head h1{font-size:26px;}
    .page-head p{font-size:15px;}
    .page-head-stat{width:100%;justify-content:space-around;padding:14px 12px;}
    .stat-item{min-width:auto;}
    .section{margin-top:44px;}
    .section-title{font-size:22px;}
    .rule-grid{grid-template-columns:1fr;gap:16px;}
    .rule-card.is-feature{grid-column:span 1;flex-direction:column;}
    .rule-card.is-feature .rule-card-cover{flex:none;aspect-ratio:4/3;min-height:0;}
    .rule-card.is-feature .rule-card-body{padding:20px;}
    .rule-card.is-feature .rule-card-body h3{font-size:18px;}
    .step-grid{grid-template-columns:1fr;gap:16px;}
    .myth-grid{grid-template-columns:1fr;}
    .subscribe-form{flex-direction:column;}
    .subscribe-form .btn{width:100%;}
    .subscribe-panel h2{font-size:22px;}
    .faq-item summary{font-size:15px;min-height:56px;}
    .faq-item p{padding-right:0;font-size:14px;}
    .footer-grid{grid-template-columns:1fr;gap:24px;}
    .footer-brand{grid-column:span 1;}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
    .site-footer{margin-top:64px;}
  }

  @media (max-width:479px){
    .section{margin-top:40px;}
    .page-head h1{font-size:23px;}
    .btn{width:100%;}
    .chip{height:34px;padding:0 14px;font-size:13px;}
  }

  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;}
  }

/* roulang page: category5 */
:root{
    --bg:#07101A;
    --panel:#0C1826;
    --panel-2:#101F30;
    --line:rgba(120,200,220,.14);
    --line-strong:rgba(140,225,240,.16);
    --text:#E6EEF5;
    --muted:#9FB2C4;
    --dim:#6B7F94;
    --primary:#2EE6C8;
    --primary-deep:#17A894;
    --accent:#6C7CFF;
    --coral:#FF6B5E;
    --success:#4ADE80;
    --warn:#F5B544;
    --disabled:#5A6B80;
    --r-sm:12px;
    --r-md:16px;
    --r-lg:20px;
    --sidebar-w:248px;
    --glass:rgba(255,255,255,.05);
    --inset:inset 0 1px 0 rgba(255,255,255,.06);
  }

  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  .site-body{
    margin:0;
    background:
      radial-gradient(680px 420px at 88% -6%, rgba(46,230,200,.10), transparent 60%),
      linear-gradient(rgba(120,200,220,.045) 1px, transparent 1px) 0 0/48px 48px,
      linear-gradient(90deg, rgba(120,200,220,.045) 1px, transparent 1px) 0 0/48px 48px,
      var(--bg);
    color:var(--text);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  .site-body.no-scroll{overflow:hidden}
  a{color:inherit;text-decoration:none}
  img{max-width:100%;display:block}
  button{font-family:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  ::selection{background:rgba(46,230,200,.3);color:#fff}
  ::-webkit-scrollbar{width:10px;height:10px}
  ::-webkit-scrollbar-track{background:transparent}
  ::-webkit-scrollbar-thumb{background:rgba(120,200,220,.22);border-radius:99px}

  .skip-link{
    position:absolute;left:-9999px;top:0;z-index:200;
    background:var(--primary);color:#04161A;padding:10px 18px;border-radius:0 0 12px 0;font-size:14px;
  }
  .skip-link:focus{left:0}

  /* ===== 侧边导航 ===== */
  .sidebar{
    position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);
    background:linear-gradient(180deg, rgba(16,31,48,.96), rgba(9,19,30,.98));
    border-right:1px solid var(--line);
    display:flex;flex-direction:column;gap:18px;
    padding:24px 16px 20px;
    z-index:60;
    transition:transform .26s ease, width .2s ease;
  }
  .brand{
    display:flex;flex-direction:column;gap:4px;
    padding:6px 10px 16px;border-bottom:1px solid var(--line);
  }
  .brand-main{
    font-size:18px;font-weight:700;letter-spacing:0;color:#fff;line-height:1.35;
    display:flex;flex-direction:column;
  }
  .brand-main .brand-top{font-size:18px}
  .brand-main .brand-bottom{font-size:13px;color:var(--primary);letter-spacing:.08em;font-weight:600}
  .brand-sub{font-size:12px;color:var(--dim);line-height:1.6}
  .nav-list{display:flex;flex-direction:column;gap:4px;flex:1}
  .nav-item{
    position:relative;
    display:flex;align-items:center;gap:12px;
    height:44px;padding:0 12px;border-radius:10px;
    color:var(--muted);font-size:16px;
    transition:background .16s ease,color .16s ease;
  }
  .nav-item i{width:18px;text-align:center;font-size:15px;color:var(--dim);transition:color .16s ease}
  .nav-item:hover{background:rgba(255,255,255,.06);color:#fff}
  .nav-item:hover i{color:var(--primary)}
  .nav-item:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
  .nav-item.active{background:rgba(46,230,200,.12);color:#fff}
  .nav-item.active i{color:var(--primary)}
  .nav-item.active::before{
    content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:99px;
    background:var(--primary);box-shadow:0 0 12px rgba(46,230,200,.6);
  }
  .state-block{
    border:1px solid var(--line-strong);border-radius:var(--r-md);
    background:var(--glass);box-shadow:var(--inset);
    padding:12px;display:flex;flex-direction:column;gap:8px;
  }
  .state-block img{width:88px;height:56px;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
  .state-block p{font-size:12px;color:var(--dim);margin:0;line-height:1.6}
  .state-block .state-time{font-family:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace;color:var(--primary);font-weight:600;font-variant-numeric:tabular-nums}
  .btn-mini{
    display:inline-flex;align-items:center;justify-content:center;
    height:34px;padding:0 12px;border-radius:10px;font-size:13px;
    border:1px solid rgba(140,225,240,.3);color:var(--text);background:transparent;
    transition:border-color .16s ease,background .16s ease;
  }
  .btn-mini:hover{border-color:rgba(46,230,200,.6);background:rgba(46,230,200,.08)}
  .btn-mini:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

  /* ===== 移动顶栏 / 抽屉 ===== */
  .mobile-bar{
    display:none;position:fixed;inset:0 0 auto 0;height:60px;z-index:80;
    align-items:center;justify-content:space-between;padding:0 16px;
    background:rgba(9,19,30,.94);border-bottom:1px solid var(--line);
    backdrop-filter:blur(12px);
  }
  .mobile-bar .m-brand{font-size:15px;font-weight:700;color:#fff}
  .mobile-bar .m-brand em{font-style:normal;color:var(--primary)}
  .burger{
    width:42px;height:42px;border-radius:10px;border:1px solid rgba(140,225,240,.3);
    background:rgba(255,255,255,.04);color:var(--text);display:inline-flex;align-items:center;justify-content:center;
  }
  .burger:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
  .drawer-close{
    display:none;width:32px;height:32px;border-radius:8px;border:1px solid var(--line-strong);
    background:transparent;color:var(--muted);align-self:flex-end;
  }
  .overlay{
    position:fixed;inset:0;background:rgba(4,10,18,.72);z-index:70;
    opacity:0;pointer-events:none;transition:opacity .2s ease;
  }
  .overlay.show{opacity:1;pointer-events:auto}

  /* ===== 主体 ===== */
  .main-shell{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
  .page-wrap{width:100%;max-width:1200px;margin:0 auto;padding:40px 32px 0;flex:1}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

  /* ===== 分类导语区 ===== */
  .page-hero{
    position:relative;overflow:hidden;
    border:1px solid var(--line-strong);border-radius:var(--r-lg);
    background:
      linear-gradient(rgba(7,16,26,.86), rgba(7,16,26,.94)),
      url("/assets/images/backpic/back-1.png") center/cover no-repeat;
    box-shadow:var(--inset);
    padding:40px 36px;
    display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:32px;align-items:center;
    min-height:240px;
  }
  .page-hero::after{
    content:"";position:absolute;right:-120px;bottom:-160px;width:420px;height:420px;
    background:radial-gradient(circle, rgba(46,230,200,.18), transparent 62%);
    pointer-events:none;
  }
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;letter-spacing:.08em;color:var(--primary);
    border:1px solid rgba(46,230,200,.32);border-radius:999px;
    padding:4px 12px;margin-bottom:16px;
  }
  .eyebrow i{font-size:11px}
  .h1{
    font-size:40px;line-height:1.3;letter-spacing:0;font-weight:700;color:#fff;margin:0 0 12px;
  }
  .hero-lead{margin:0;font-size:16px;color:var(--muted);max-width:38em}
  .hero-stats{
    position:relative;z-index:1;
    border:1px solid var(--line-strong);border-radius:var(--r-md);
    background:rgba(255,255,255,.05);box-shadow:var(--inset);
    backdrop-filter:blur(14px);
    padding:18px 20px;display:flex;flex-direction:column;gap:14px;
  }
  .stat-item{display:flex;flex-direction:column;gap:2px;border-bottom:1px dashed var(--line);padding-bottom:12px}
  .stat-item:last-child{border-bottom:0;padding-bottom:0}
  .stat-num{font-family:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace;font-size:26px;font-weight:600;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2}
  .stat-label{font-size:13px;color:var(--muted)}

  /* ===== 帮助双栏 ===== */
  .help-grid{display:grid;grid-template-columns:240px minmax(0,1fr);gap:32px;margin-top:56px;align-items:start}
  .toc{
    position:sticky;top:32px;
    border:1px solid var(--line-strong);border-radius:var(--r-md);
    background:var(--glass);box-shadow:var(--inset);
    backdrop-filter:blur(14px);
    padding:18px 14px;
  }
  .toc-title{
    font-size:12px;letter-spacing:.08em;color:var(--dim);
    margin:0 0 12px;padding:0 8px;
  }
  .toc-list{display:flex;flex-direction:column;gap:2px}
  .toc-list a{
    display:flex;align-items:center;gap:10px;
    min-height:40px;padding:0 10px;border-radius:10px;
    font-size:14px;color:var(--muted);
    transition:background .16s ease,color .16s ease;
  }
  .toc-list a::before{content:"";width:3px;height:12px;border-radius:99px;background:rgba(120,200,220,.22);transition:background .16s ease}
  .toc-list a:hover{background:rgba(255,255,255,.06);color:#fff}
  .toc-list a:hover::before{background:var(--primary)}
  .toc-list a:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
  .toc-list a.is-current{background:rgba(46,230,200,.12);color:#fff}
  .toc-list a.is-current::before{background:var(--primary);box-shadow:0 0 10px rgba(46,230,200,.6)}

  .help-body{display:flex;flex-direction:column;gap:56px;min-width:0}
  .block{scroll-margin-top:32px}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:20px}
  .h2{
    font-size:28px;line-height:1.3;font-weight:700;color:#fff;margin:0;
    padding-left:14px;position:relative;
  }
  .h2::before{
    content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:99px;
    background:linear-gradient(180deg,var(--primary),var(--primary-deep));
  }
  .h3{font-size:20px;line-height:1.4;font-weight:600;color:#fff;margin:0 0 8px}
  .block-note{font-size:14px;color:var(--dim);margin:0}

  .card{
    border:1px solid var(--line-strong);border-radius:var(--r-md);
    background:var(--glass);box-shadow:var(--inset);
    backdrop-filter:blur(14px);
    padding:20px;
    transition:border-color .2s ease, transform .2s ease;
  }
  .card:hover{border-color:rgba(46,230,200,.32);transform:translateY(-2px)}

  .card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
  .step-card{
    border:1px solid var(--line-strong);border-radius:var(--r-md);
    background:var(--glass);box-shadow:var(--inset);
    padding:22px;display:flex;flex-direction:column;gap:10px;
    transition:border-color .2s ease, transform .2s ease;
  }
  .step-card:hover{border-color:rgba(46,230,200,.32);transform:translateY(-2px)}
  .step-num{
    font-family:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace;
    font-size:22px;font-weight:600;color:var(--primary);font-variant-numeric:tabular-nums;
    display:flex;align-items:center;gap:10px;
  }
  .step-num i{font-size:16px;color:var(--accent)}
  .step-card h3{font-size:17px;margin:0;color:#fff;font-weight:600}
  .step-card p{margin:0;font-size:14px;color:var(--muted);line-height:1.75}

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    height:24px;padding:0 10px;border-radius:999px;
    font-size:12px;line-height:1;border:1px solid transparent;white-space:nowrap;
  }
  .badge-accent{border-color:rgba(108,124,255,.5);color:#B9C2FF}
  .badge-primary{border-color:rgba(46,230,200,.45);color:var(--primary)}
  .badge-coral{border-color:rgba(255,107,94,.5);color:#FFB1AA}
  .badge-plain{background:rgba(255,255,255,.08);color:var(--muted)}

  /* FAQ */
  .faq-list{border-top:1px solid var(--line)}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item summary{
    list-style:none;cursor:pointer;
    min-height:60px;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:12px 4px;font-size:16px;color:#fff;
    transition:color .16s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{color:var(--primary)}
  .faq-item summary:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px}
  .faq-icon{
    flex:0 0 auto;width:24px;height:24px;border-radius:8px;
    border:1px solid var(--line-strong);color:var(--primary);
    display:inline-flex;align-items:center;justify-content:center;font-size:14px;
    transition:transform .2s ease, background .2s ease;
  }
  .faq-item[open] .faq-icon{transform:rotate(45deg);background:rgba(46,230,200,.14)}
  .faq-answer{padding:0 4px 18px;font-size:15px;color:var(--muted);line-height:1.8;max-width:62em}

  .hint-card{
    display:flex;gap:14px;
    border:1px solid var(--line-strong);border-radius:var(--r-md);
    background:rgba(108,124,255,.07);box-shadow:var(--inset);
    padding:18px 20px;margin-top:20px;
  }
  .hint-card i{color:var(--accent);font-size:18px;margin-top:3px}
  .hint-card p{margin:0;font-size:14px;color:var(--muted);line-height:1.8}

  /* 步骤列表 */
  .flow-list{display:flex;flex-direction:column;gap:0;border-left:1px solid var(--line);margin-left:10px}
  .flow-item{position:relative;padding:0 0 24px 26px}
  .flow-item::before{
    content:"";position:absolute;left:-5px;top:8px;width:9px;height:9px;border-radius:50%;
    background:var(--bg);border:1px solid rgba(46,230,200,.6);
  }
  .flow-item.done::before{background:var(--primary);box-shadow:0 0 10px rgba(46,230,200,.6);border-color:var(--primary)}
  .flow-item h4{margin:0 0 4px;font-size:16px;color:#fff;font-weight:600}
  .flow-item p{margin:0;font-size:14px;color:var(--muted)}

  /* 设备表 */
  .device-table{border:1px solid var(--line-strong);border-radius:var(--r-md);overflow:hidden;background:var(--glass)}
  .device-row{
    display:grid;grid-template-columns:1.4fr 1.2fr 100px;
    gap:12px;align-items:center;
    padding:14px 20px;border-bottom:1px solid var(--line);
    font-size:14px;color:var(--muted);
  }
  .device-row:last-child{border-bottom:0}
  .device-row.head{background:rgba(255,255,255,.04);color:var(--dim);font-size:12px;letter-spacing:.08em}
  .device-name{color:#fff;font-size:15px;display:flex;align-items:center;gap:10px}
  .device-name i{color:var(--primary);font-size:14px}
  .device-time{font-family:"DIN Alternate","Bahnschrift","JetBrains Mono",ui-monospace;font-variant-numeric:tabular-nums;color:var(--muted)}

  /* 表单 */
  .contact-card{
    border:1px solid var(--line-strong);border-radius:var(--r-lg);
    background:linear-gradient(140deg, rgba(46,230,200,.08), rgba(255,255,255,.04) 46%);
    box-shadow:var(--inset);
    padding:28px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:32px;align-items:start;
  }
  .contact-card figure{margin:16px 0 0;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line)}
  .contact-card figure img{width:100%;height:150px;object-fit:cover;opacity:.9}
  .field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
  .field label{font-size:14px;color:var(--muted)}
  .input,.select,.textarea{
    width:100%;min-height:48px;border-radius:12px;
    background:rgba(255,255,255,.06);
    border:1px solid rgba(140,225,240,.2);
    color:var(--text);font-size:15px;font-family:inherit;
    padding:12px 14px;line-height:1.6;
    transition:border-color .16s ease, box-shadow .16s ease;
  }
  .textarea{min-height:120px;resize:vertical}
  .input::placeholder,.textarea::placeholder{color:rgba(107,127,148,.8)}
  .input:focus,.select:focus,.textarea:focus{
    outline:none;border-color:var(--primary);
    box-shadow:0 0 0 3px rgba(46,230,200,.18);
  }
  .select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
  .form-msg{min-height:22px;font-size:14px;margin:0 0 12px}
  .form-msg.err{color:var(--coral)}
  .form-msg.ok{color:var(--success)}

  /* 按钮 */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;border-radius:12px;font-size:15px;font-weight:600;
    border:1px solid transparent;cursor:pointer;
    transition:transform .16s ease, box-shadow .16s ease, background .16s ease, border-color .16s ease, filter .16s ease;
  }
  .btn-primary{
    background:linear-gradient(135deg,#2EE6C8,#33D6C0);
    color:#04161A;box-shadow:0 8px 24px rgba(46,230,200,.28);
  }
  .btn-primary:hover{filter:brightness(1.08);box-shadow:0 10px 28px rgba(46,230,200,.38);transform:translateY(-1px)}
  .btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(46,230,200,.24)}
  .btn-primary:focus-visible{outline:2px solid #E6EEF5;outline-offset:2px}
  .btn-ghost{background:transparent;border-color:rgba(140,225,240,.3);color:var(--text)}
  .btn-ghost:hover{border-color:rgba(46,230,200,.6);background:rgba(46,230,200,.08)}
  .btn-ghost:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
  .btn-block{width:100%}
  .link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary)}
  .link-arrow i{transition:transform .16s ease}
  .link-arrow:hover i{transform:translateX(4px)}
  .link-arrow:hover{text-decoration:underline;text-underline-offset:4px}

  /* CTA 带 */
  .cta-band{
    margin-top:56px;border:1px solid var(--line-strong);border-radius:var(--r-lg);
    background:linear-gradient(120deg, rgba(46,230,200,.12), rgba(108,124,255,.10) 60%, rgba(255,255,255,.03));
    box-shadow:var(--inset);
    padding:28px 32px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  }
  .cta-band h2{margin:0 0 6px;font-size:22px;color:#fff;line-height:1.35}
  .cta-band p{margin:0;font-size:14px;color:var(--muted)}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px}

  /* 页脚 */
  .site-footer{margin-top:96px;border-top:1px solid var(--line);background:rgba(9,19,30,.7);padding:48px 0 0}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:36px}
  .footer-brand .brand-main{font-size:18px;font-weight:700;color:#fff;margin-bottom:10px}
  .footer-brand p{margin:0 0 14px;font-size:14px;color:var(--dim);line-height:1.8;max-width:26em}
  .footer-brand img{width:80px;height:48px;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
  .footer-col h4{margin:0 0 14px;font-size:14px;color:#fff;font-weight:600;letter-spacing:.04em}
  .footer-col ul{display:flex;flex-direction:column;gap:10px}
  .footer-col a{font-size:14px;color:var(--dim);transition:color .16s ease}
  .footer-col a:hover{color:#fff}
  .footer-col a:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
  .footer-bottom{
    display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
    border-top:1px solid var(--line);padding:18px 0 26px;
    font-size:13px;color:var(--dim);
  }

  /* ===== 响应式 ===== */
  @media (min-width:1024px) and (max-width:1279px){
    .sidebar{width:88px;padding:20px 10px;align-items:center}
    .brand{padding:6px 0 14px;align-items:center;width:100%}
    .brand-main{font-size:15px;align-items:center;text-align:center}
    .brand-main .brand-bottom{display:none}
    .brand-sub{display:none}
    .nav-list{width:100%;align-items:center}
    .nav-item{justify-content:center;padding:0;width:48px}
    .nav-item span{display:none}
    .nav-item::after{
      content:attr(data-label);
      position:absolute;left:64px;top:50%;transform:translateY(-50%) scale(.96);
      background:rgba(16,31,48,.96);border:1px solid var(--line-strong);
      color:#fff;font-size:12px;padding:6px 10px;border-radius:8px;white-space:nowrap;
      opacity:0;pointer-events:none;transition:opacity .16s ease, transform .16s ease;
      box-shadow:0 8px 20px rgba(0,0,0,.35);z-index:5;
    }
    .nav-item:hover::after,.nav-item:focus-visible::after{opacity:1;transform:translateY(-50%) scale(1)}
    .state-block img{width:56px;height:56px}
    .state-block p,.state-block .btn-mini{display:none}
    .main-shell{margin-left:88px}
    .page-hero{grid-template-columns:minmax(0,1fr)}
    .help-grid{grid-template-columns:minmax(0,1fr)}
    .toc{position:static}
    .toc-list{flex-direction:row;flex-wrap:nowrap;overflow-x:auto;gap:8px;padding-bottom:4px}
    .toc-list a{white-space:nowrap;min-height:36px;background:rgba(255,255,255,.04)}
    .h1{font-size:34px}
  }

  @media (max-width:1023px){
    .mobile-bar{display:flex}
    .sidebar{transform:translateX(-100%);width:280px;z-index:90;padding:20px 16px}
    .sidebar.open{transform:translateX(0)}
    .drawer-close{display:inline-flex;align-items:center;justify-content:center}
    .main-shell{margin-left:0;padding-top:60px}
    .page-wrap{padding:28px 20px 0}
    .container{padding:0 20px}
    .page-hero{grid-template-columns:minmax(0,1fr);padding:28px 22px;min-height:0}
    .h1{font-size:28px}
    .h2{font-size:22px}
    .help-grid{grid-template-columns:minmax(0,1fr);margin-top:40px;gap:32px}
    .toc{position:static;padding:14px 12px}
    .toc-list{flex-direction:row;flex-wrap:nowrap;overflow-x:auto;gap:8px}
    .toc-list a{white-space:nowrap;min-height:36px;background:rgba(255,255,255,.04)}
    .help-body{gap:40px}
    .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .contact-card{grid-template-columns:minmax(0,1fr);padding:22px;gap:20px}
    .cta-band{padding:22px;flex-direction:column;align-items:flex-start}
    .site-footer{margin-top:56px}
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  }

  @media (max-width:767px){
    .page-wrap{padding:20px 16px 0}
    .container{padding:0 16px}
    .card-grid{grid-template-columns:minmax(0,1fr)}
    .device-row{grid-template-columns:1fr;gap:4px;padding:14px 16px}
    .device-row.head{display:none}
    .footer-grid{grid-template-columns:minmax(0,1fr)}
    .hero-stats{grid-column:1/-1}
    .cta-actions{width:100%}
    .cta-actions .btn{width:100%}
  }

  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto}
    *,*::before,*::after{animation:none !important;transition:none !important}
  }