/* roulang page: index */
:root{
  --bg:#060A16;
  --bg-2:#0A1226;
  --primary:#2EE6C5;
  --primary-2:#4C8DFF;
  --accent:#FF8A3D;
  --urgent:#FF4D6D;
  --text:#E9F1FF;
  --text-2:#8FA3C4;
  --text-3:#5F7294;
  --glass:rgba(255,255,255,.055);
  --line:rgba(140,190,255,.14);
  --line-hover:rgba(46,230,197,.38);
  --r-card:18px;
  --r-sub:14px;
  --r-btn:12px;
  --shadow:0 20px 60px -24px rgba(0,0,0,.65);
  --shadow-soft:0 10px 30px -18px rgba(0,0,0,.7);
  --sidebar-w:232px;
  --sidebar-w-collapsed:76px;
  --sec-space:96px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(76,141,255,.10), transparent 60%),
    radial-gradient(900px 500px at 0% 20%, rgba(46,230,197,.07), transparent 55%),
    var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:15px}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:.01em;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(46,230,197,.3);color:#fff}

/* ============ 布局骨架 ============ */
.shell{display:flex;min-height:100vh;width:100%}
.sidebar{
  width:var(--sidebar-w);
  flex:0 0 var(--sidebar-w);
  position:fixed;
  top:0;left:0;bottom:0;
  z-index:60;
  background:linear-gradient(180deg,rgba(10,18,38,.96),rgba(6,10,22,.98));
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:20px 14px 18px;
  transition:width .28s ease,flex-basis .28s ease;
}
.shell.collapsed .sidebar{width:var(--sidebar-w-collapsed);flex-basis:var(--sidebar-w-collapsed);padding-left:10px;padding-right:10px}
.shell-body{
  flex:1 1 auto;
  min-width:0;
  margin-left:var(--sidebar-w);
  transition:margin-left .28s ease;
  display:flex;flex-direction:column;
}
.shell.collapsed .shell-body{margin-left:var(--sidebar-w-collapsed)}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.main{flex:1 1 auto}
.section{padding:var(--sec-space) 0 0}
.section:last-of-type{padding-bottom:0}

/* ============ 侧边栏 ============ */
.brand{display:flex;align-items:center;gap:12px;padding:6px 8px 20px;border-bottom:1px solid var(--line);margin-bottom:16px}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  background:linear-gradient(135deg,#2EE6C5,#35C9E8);
  color:#04121A;font-weight:800;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 24px -10px rgba(46,230,197,.75);
}
.brand-text{min-width:0}
.brand-title{font-size:15px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-sub{font-size:11px;color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;letter-spacing:.02em}
.shell.collapsed .brand-text{display:none}
.nav-group-title{font-size:12px;color:var(--text-3);padding:8px 12px;letter-spacing:.04em}
.side-nav{display:flex;flex-direction:column;gap:4px}
.side-link{
  position:relative;
  display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;
  border-radius:12px;
  color:var(--text-2);
  font-size:14.5px;
  transition:background .22s ease,color .22s ease,transform .22s ease;
}
.side-link i{font-size:16px;width:20px;text-align:center;color:var(--primary-2)}
.side-link .side-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.side-link:hover{background:rgba(255,255,255,.05);color:#fff}
.side-link:hover i{color:var(--primary)}
.side-link.active{background:rgba(46,230,197,.10);color:var(--primary);font-weight:600}
.side-link.active i{color:var(--primary)}
.side-link.active::before{
  content:"";position:absolute;left:-14px;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:0 3px 3px 0;background:var(--primary);
}
.shell.collapsed .side-link{justify-content:center;padding:0}
.shell.collapsed .side-label{display:none}
.shell.collapsed .nav-group-title{text-align:center;font-size:10px}
.side-cta{margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}
.side-cta .btn{width:100%;justify-content:center}
.shell.collapsed .side-cta .btn span{display:none}
.shell.collapsed .side-cta .btn{padding:0;height:44px}
.collapse-btn{
  position:absolute;top:26px;right:-14px;
  width:28px;height:28px;border-radius:50%;
  background:var(--bg-2);border:1px solid var(--line);
  color:var(--text-2);display:flex;align-items:center;justify-content:center;
  font-size:12px;z-index:70;transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.collapse-btn:hover{color:var(--primary);border-color:var(--line-hover);transform:scale(1.06)}

/* ============ 移动端顶栏与抽屉 ============ */
.mobile-bar{
  display:none;
  position:sticky;top:0;z-index:50;
  height:56px;align-items:center;justify-content:space-between;
  padding:0 16px;
  background:rgba(6,10,22,.9);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.mobile-brand{display:flex;align-items:center;gap:10px;min-width:0}
.mobile-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:11px;font-size:15px}
.mobile-brand .brand-title{font-size:14px}
.hamburger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:var(--glass);color:var(--text);display:flex;align-items:center;justify-content:center;font-size:16px;
}
.hamburger:hover{color:var(--primary);border-color:var(--line-hover)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,8,20,.72);backdrop-filter:blur(4px);
  opacity:0;pointer-events:none;transition:opacity .28s ease;z-index:80;
}
.drawer-mask.show{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:82%;max-width:320px;z-index:90;
  background:linear-gradient(180deg,#0A1226,#060A16);
  border-right:1px solid var(--line);
  transform:translateX(-102%);
  transition:transform .3s ease;
  display:flex;flex-direction:column;
  padding:18px 14px;
}
.drawer.show{transform:translateX(0)}
.drawer-close{align-self:flex-end;width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--text-2);margin-bottom:10px}
.drawer-close:hover{color:var(--primary)}
.drawer .side-link.active::before{left:-14px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#2EE6C5,#35C9E8);
  color:#04121A;font-weight:700;
  box-shadow:0 8px 28px -8px rgba(46,230,197,.55);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px -8px rgba(46,230,197,.75)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px -6px rgba(46,230,197,.5)}
.btn-ghost{
  background:transparent;border-color:rgba(76,141,255,.5);color:var(--text);
}
.btn-ghost:hover{background:rgba(46,230,197,.10);border-color:var(--line-hover);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:10px}
.btn-block{width:100%}
.text-link{
  color:var(--primary-2);font-size:14px;font-weight:600;
  display:inline-flex;align-items:center;gap:6px;position:relative;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1px;width:100%;
  background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .28s ease;
}
.text-link:hover{color:var(--primary)}
.text-link:hover::after{transform:scaleX(1)}

/* ============ 标签 / 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1.6;
  border:1px solid transparent;
}
.badge-blue{background:rgba(76,141,255,.14);color:#9CC0FF;border-color:rgba(76,141,255,.3)}
.badge-accent{background:rgba(255,138,61,.14);color:#FFB783;border-color:rgba(255,138,61,.34)}
.badge-time{background:rgba(255,255,255,.05);color:var(--text-3);border-color:var(--line)}
.badge-primary{background:rgba(46,230,197,.13);color:var(--primary);border-color:rgba(46,230,197,.32)}

/* ============ 通用卡片 ============ */
.card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.07);
  padding:24px;
  transition:transform .35s ease-out,border-color .35s ease-out,box-shadow .35s ease-out;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-hover)}
.card-flat:hover{transform:none}

/* ============ 板块标题 ============ */
.sec-head{max-width:760px;margin-bottom:32px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;color:var(--primary);
  letter-spacing:.06em;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.75}
.sec-head h2{font-size:clamp(20px,3.4vw,30px)}
.sec-head p{margin-top:14px;color:var(--text-2);font-size:15.5px}

/* ============ Hero ============ */
.hero{
  position:relative;
  margin-top:28px;
  border-radius:24px;
  overflow:hidden;
  border:1px solid var(--line);
  background-image:linear-gradient(100deg,rgba(6,10,22,.94) 0%,rgba(6,10,22,.78) 42%,rgba(6,10,22,.35) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center right;
  box-shadow:var(--shadow);
}
.hero-inner{
  position:relative;z-index:2;
  padding:clamp(32px,5.4vw,72px) clamp(22px,4vw,64px);
  max-width:720px;
}
.hero h1{font-size:clamp(26px,6vw,44px);font-weight:800;overflow:hidden;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{margin-top:20px;color:var(--text-2);font-size:16.5px;max-width:620px}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-float{
  position:absolute;right:24px;bottom:24px;z-index:3;
  min-width:210px;
  background:rgba(10,18,38,.82);
  border:1px solid var(--line);
  border-radius:var(--r-sub);
  backdrop-filter:blur(14px);
  padding:16px 18px;
  box-shadow:var(--shadow-soft);
}
.hero-float dl{margin:0;display:grid;gap:10px}
.hero-float div{display:flex;align-items:baseline;justify-content:space-between;gap:14px}
.hero-float dt{font-size:12.5px;color:var(--text-3)}
.hero-float dd{margin:0;font-size:13.5px;color:var(--text);font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ============ 速览网格（非等宽） ============ */
.overview{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.ov-item{
  grid-column:span 5;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;backdrop-filter:blur(14px);
  box-shadow:var(--shadow-soft),inset 0 1px 0 rgba(255,255,255,.07);
  transition:transform .3s ease-out,border-color .3s ease-out;
}
.ov-item:hover{transform:translateY(-4px);border-color:var(--line-hover)}
.ov-item.wide{grid-column:span 7}
.ov-item.half{grid-column:span 6}
.ov-item.full{grid-column:span 12}
.ov-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:30px;font-weight:700;color:var(--primary);line-height:1.1;
}
.ov-item h3{font-size:18px;margin-top:12px}
.ov-item p{margin-top:10px;color:var(--text-2);font-size:14.5px}
.ov-list{margin-top:14px;display:grid;gap:8px}
.ov-list li{display:flex;gap:10px;color:var(--text-2);font-size:14.5px}
.ov-list li::before{content:"";width:6px;height:6px;background:var(--primary-2);flex:0 0 6px;margin-top:9px;border-radius:1px}

/* ============ 优惠阶梯 ============ */
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.ladder::before{
  content:"";position:absolute;left:6%;right:6%;top:34px;height:1px;
  background:linear-gradient(90deg,rgba(46,230,197,.5),rgba(76,141,255,.35),rgba(255,138,61,.4));
}
.step{position:relative;padding-top:0}
.step-dot{
  width:68px;height:68px;border-radius:50%;
  background:var(--bg-2);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:20px;font-weight:700;color:var(--primary);
  position:relative;z-index:2;margin-bottom:22px;
  transition:border-color .28s ease,color .28s ease,box-shadow .28s ease;
}
.step:hover .step-dot{border-color:var(--line-hover);box-shadow:0 0 0 6px rgba(46,230,197,.08)}
.step-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;backdrop-filter:blur(14px);height:100%;
  transition:transform .3s ease-out,border-color .3s ease-out;
}
.step-card:hover{transform:translateY(-4px);border-color:var(--line-hover)}
.step-card h3{font-size:17px}
.step-cond{margin-top:8px;font-size:13px;color:var(--text-3)}
.step-card ul{margin-top:14px;display:grid;gap:8px}
.step-card ul li{display:flex;gap:9px;font-size:14px;color:var(--text-2)}
.step-card ul li i{color:var(--primary);font-size:12px;margin-top:6px}
.step-card .btn{margin-top:18px}

/* ============ 对比表 ============ */
.table-scroll{
  overflow-x:auto;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--glass);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-soft);
  position:relative;
}
.table-scroll::-webkit-scrollbar{height:8px}
.table-scroll::-webkit-scrollbar-thumb{background:rgba(140,190,255,.25);border-radius:99px}
table.cmp{border-collapse:separate;border-spacing:0;width:100%;min-width:760px;font-size:14.5px}
table.cmp th,table.cmp td{padding:16px 20px;text-align:left;border-bottom:1px solid rgba(140,190,255,.10)}
table.cmp thead th{
  position:sticky;top:0;z-index:3;
  background:#0B1428;color:var(--primary);
  font-size:13.5px;font-weight:700;letter-spacing:.04em;
}
table.cmp tbody tr:hover td{background:rgba(46,230,197,.045)}
table.cmp td:first-child{color:var(--text-2)}
table.cmp tbody tr:nth-child(3n) td{border-bottom-color:rgba(140,190,255,.22)}
.col-reco{position:relative;background:rgba(255,138,61,.055)}
.col-reco::after{content:"";position:absolute;inset:0;border:1px solid rgba(255,138,61,.4);border-radius:0;pointer-events:none}
.reco-flag{
  position:absolute;top:-1px;left:50%;transform:translateX(-50%);
  background:linear-gradient(135deg,#FF8A3D,#FF6B3D);color:#1A0C02;
  font-size:11.5px;font-weight:700;padding:3px 12px;border-radius:0 0 10px 10px;
}
.scroll-hint{display:none;margin-top:10px;font-size:12.5px;color:var(--text-3);text-align:center}

/* ============ 限时入口 ============ */
.countdown-bar{
  display:flex;align-items:center;gap:26px;flex-wrap:wrap;
  border:1px solid rgba(255,77,109,.32);
  background:linear-gradient(100deg,rgba(255,77,109,.10),rgba(46,230,197,.06) 55%,rgba(255,138,61,.08));
  border-radius:var(--r-card);
  padding:26px 28px;
  box-shadow:var(--shadow-soft);
}
.cd-block{display:flex;align-items:center;gap:10px}
.cd-cell{
  min-width:64px;padding:10px 8px;border-radius:12px;text-align:center;
  background:rgba(6,10,22,.6);border:1px solid rgba(255,77,109,.3);
}
.cd-num{
  display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:24px;font-weight:700;color:var(--urgent);line-height:1.15;
}
.cd-label{display:block;font-size:11.5px;color:var(--text-3);margin-top:4px}
.cd-sep{color:var(--urgent);font-weight:700;font-size:18px;opacity:.7}
.cd-text{flex:1 1 260px;min-width:220px}
.cd-text h3{font-size:19px}
.cd-text p{margin-top:8px;color:var(--text-2);font-size:14.5px}
.pulse-dot{
  display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--urgent);margin-right:8px;
  animation:pulse 2.8s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(255,77,109,.5)}50%{opacity:.7;box-shadow:0 0 0 8px rgba(255,77,109,0)}}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  backdrop-filter:blur(14px);box-shadow:var(--shadow-soft),inset 0 1px 0 rgba(255,255,255,.07);
  transition:transform .35s ease-out,border-color .35s ease-out;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-hover)}
.news-cover{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:#0A1226}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(6,10,22,.72))}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.news-title{margin-top:12px;font-size:16.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title a:hover{color:var(--primary)}
.news-excerpt{margin-top:10px;color:var(--text-2);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:16px;padding-top:14px;border-top:1px solid rgba(140,190,255,.12);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.empty-state{
  grid-column:1/-1;
  text-align:center;padding:52px 24px;
  border:1px dashed rgba(140,190,255,.22);border-radius:var(--r-card);
  background:rgba(255,255,255,.02);
}
.empty-state i{font-size:26px;color:var(--text-3)}
.empty-state p{margin:14px 0 18px;color:var(--text-2);font-size:14.5px}

/* ============ 评价 / 证据 ============ */
.proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.proof-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;backdrop-filter:blur(14px);
  box-shadow:var(--shadow-soft),inset 0 1px 0 rgba(255,255,255,.07);
  transition:transform .3s ease-out,border-color .3s ease-out;
}
.proof-card:hover{transform:translateY(-4px);border-color:var(--line-hover)}
.proof-card p{margin-top:14px;color:var(--text-2);font-size:14.5px}
.proof-who{margin-top:16px;display:flex;align-items:center;gap:12px}
.avatar{
  width:40px;height:40px;border-radius:12px;flex:0 0 40px;
  background:linear-gradient(135deg,rgba(76,141,255,.9),rgba(46,230,197,.85));
  color:#04121A;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
}
.proof-who span{font-size:13.5px;color:var(--text-3)}
.stars{color:var(--accent);font-size:13px;letter-spacing:2px}

/* ============ 表单 ============ */
.contact-wrap{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:start}
.contact-side h2{font-size:clamp(20px,3.4vw,30px)}
.contact-side p{margin-top:14px;color:var(--text-2);font-size:15px}
.contact-points{margin-top:22px;display:grid;gap:14px}
.contact-points li{display:flex;gap:12px;font-size:14.5px;color:var(--text-2)}
.contact-points li i{color:var(--primary);margin-top:5px}
.form-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;backdrop-filter:blur(14px);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.07);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:13.5px;color:var(--text-2);font-weight:600}
.field label .req{color:var(--primary);margin-left:4px}
.field input,.field textarea,.field select{
  width:100%;background:rgba(255,255,255,.04);
  border:1px solid rgba(140,190,255,.18);border-radius:12px;
  padding:12px 14px;color:var(--text);transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(46,230,197,.14);background:rgba(255,255,255,.06);
}
.form-note{margin-top:14px;font-size:12.5px;color:var(--text-3);line-height:1.7}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  backdrop-filter:blur(14px);overflow:hidden;position:relative;
  transition:border-color .28s ease,background .28s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);
  transform:scaleY(0);transform-origin:top;transition:transform .3s ease;
}
.faq-item[open]::before{transform:scaleY(1)}
.faq-item[open]{border-color:var(--line-hover);background:rgba(46,230,197,.05)}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:52px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 22px;font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary i{color:var(--primary-2);font-size:13px;transition:transform .3s ease}
.faq-item[open] summary i{transform:rotate(180deg)}
.faq-body{padding:0 22px 20px;color:var(--text-2);font-size:14.8px}

/* ============ CTA 横幅 ============ */
.cta-banner{
  border:1px solid var(--line);border-radius:var(--r-card);
  background-image:linear-gradient(100deg,rgba(6,10,22,.95),rgba(10,18,38,.72)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  padding:clamp(28px,4vw,46px);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--shadow);
}
.cta-banner h2{font-size:clamp(20px,3vw,26px)}
.cta-banner p{margin-top:10px;color:var(--text-2);font-size:15px;max-width:620px}

/* ============ 页脚 ============ */
.site-footer{
  margin:96px auto 0;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,18,38,.5),rgba(6,10,22,.9));
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding:56px 0 40px}
.footer-brand{display:flex;gap:12px;align-items:center;margin-bottom:16px}
.footer-brand .brand-mark{width:38px;height:38px;flex:0 0 38px;border-radius:12px;font-size:15px}
.footer-brand strong{font-size:15.5px}
.footer-col h3{font-size:14px;color:var(--primary);margin-bottom:16px;font-weight:700}
.footer-col p{font-size:14px;color:var(--text-2)}
.footer-col ul{display:grid;gap:11px}
.footer-col ul a{font-size:14px;color:var(--text-2);transition:color .2s ease,padding-left .2s ease}
.footer-col ul a:hover{color:#fff;padding-left:4px}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 28px;
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom p{margin:0}
.to-top{
  position:fixed;right:16px;bottom:16px;z-index:70;
  width:46px;height:46px;border-radius:50%;
  background:rgba(10,18,38,.85);border:1px solid var(--line);color:var(--text-2);
  backdrop-filter:blur(14px);display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:opacity .28s ease,color .2s ease,transform .2s ease;
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{color:var(--primary);transform:translateY(-3px)}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out,transform .5s ease-out}
.reveal.in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .proof-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .shell-body{margin-left:0}
  .mobile-bar{display:flex}
  :root{--sec-space:72px}
  .overview .ov-item,.overview .ov-item.wide,.overview .ov-item.half{grid-column:span 6}
  .ladder{grid-template-columns:repeat(2,1fr)}
  .ladder::before{display:none}
  .contact-wrap{grid-template-columns:1fr;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .hero-float{position:static;margin:0 22px 28px}
  .hero-inner{padding-bottom:24px}
  .proof-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  .container{padding:0 16px}
  :root{--sec-space:56px}
  .hero{margin-top:18px;border-radius:18px}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%}
  .hero-tags{gap:8px}
  .overview{grid-template-columns:1fr;gap:16px}
  .overview .ov-item,.overview .ov-item.wide,.overview .ov-item.half,.overview .ov-item.full{grid-column:span 1}
  .ladder{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .proof-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:22px}
  .countdown-bar{padding:20px;gap:18px}
  .cd-cell{min-width:56px}
  .cta-banner{padding:24px 20px}
  .cta-banner .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:40px 0 28px}
  .scroll-hint{display:block}
  .faq-item summary{font-size:15px;padding:14px 18px}
  .faq-body{padding:0 18px 18px}
}
@media (max-width:520px){
  .hero-float{min-width:0;margin:0 16px 20px}
  .hero-inner{padding:26px 18px 18px}
  .btn{height:44px;font-size:14.5px}
  .cd-block{width:100%;justify-content:flex-start}
  .cd-text{flex:1 1 100%}
  .cd-text .btn{width:100%}
}

/* roulang page: article */
:root{
  --bg:#060A16;
  --bg-2:#0A1226;
  --primary:#2EE6C5;
  --primary-2:#4C8DFF;
  --accent:#FF8A3D;
  --urgent:#FF4D6D;
  --text:#E9F1FF;
  --text-2:#8FA3C4;
  --text-3:#5F7294;
  --glass:rgba(255,255,255,.055);
  --glass-strong:rgba(255,255,255,.09);
  --line:rgba(140,190,255,.14);
  --line-strong:rgba(140,190,255,.26);
  --radius:18px;
  --radius-sm:14px;
  --radius-btn:12px;
  --shadow:0 20px 60px -24px rgba(0,0,0,.65);
  --sidebar:232px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  letter-spacing:.01em;
  overflow-x:hidden;
  background-image:
    radial-gradient(900px 520px at 82% -8%,rgba(46,230,197,.10),transparent 62%),
    radial-gradient(760px 480px at 4% 14%,rgba(76,141,255,.10),transparent 60%);
  background-attachment:fixed;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:none;cursor:pointer}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(46,230,197,.28);color:#fff}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 移动顶栏 ---------- */
.mobile-topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:56px;z-index:80;
  align-items:center;justify-content:space-between;
  padding:0 16px;
  background:rgba(6,10,22,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.mobile-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px}
.mobile-brand .brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;
  background:linear-gradient(135deg,#2EE6C5,#35C9E8);
  color:#04121A;font-size:13px;font-weight:800;
}
.mobile-brand small{display:block;font-size:11px;color:var(--text-3);font-weight:500;line-height:1.2}
.nav-toggle{
  width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:var(--glass);
  color:var(--text);display:flex;align-items:center;justify-content:center;
  transition:border-color .25s ease-out,background .25s ease-out;
}
.nav-toggle:hover{border-color:rgba(46,230,197,.45);background:rgba(46,230,197,.10)}

/* ---------- 左侧导航 ---------- */
.side-nav-wrap{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);z-index:70;
  display:flex;flex-direction:column;gap:18px;
  padding:22px 14px 18px;
  background:linear-gradient(180deg,#080D1C 0%,#060A16 100%);
  border-right:1px solid var(--line);
}
.brand-block{display:flex;align-items:center;gap:11px;padding:4px 8px 14px;border-bottom:1px solid var(--line)}
.brand-block .brand-mark{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#2EE6C5,#35C9E8);
  color:#04121A;font-weight:800;font-size:14px;
  box-shadow:0 8px 28px -8px rgba(46,230,197,.55);
}
.brand-text{min-width:0}
.brand-text strong{display:block;font-size:15px;line-height:1.25;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-text small{display:block;font-size:11px;color:var(--text-3);letter-spacing:.02em}
.nav-group-title{display:block;padding:0 10px 8px;font-size:12px;color:var(--text-3);letter-spacing:.06em}
.side-nav{display:flex;flex-direction:column;gap:4px}
.side-link{
  position:relative;display:flex;align-items:center;gap:11px;
  height:44px;padding:0 12px;border-radius:var(--radius-btn);
  color:var(--text-2);font-size:14px;
  transition:background .25s ease-out,color .25s ease-out,transform .25s ease-out;
}
.side-link i{width:18px;font-size:15px;text-align:center;color:var(--primary-2)}
.side-link::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:20px;border-radius:0 3px 3px 0;background:var(--primary);
  transition:transform .25s ease-out;
}
.side-link:hover{background:rgba(255,255,255,.05);color:var(--text)}
.side-link:hover::before{transform:translateY(-50%) scaleY(.7)}
.side-link.active{background:rgba(46,230,197,.10);color:var(--primary)}
.side-link.active i{color:var(--primary)}
.side-link.active::before{transform:translateY(-50%) scaleY(1)}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.side-note{font-size:12px;color:var(--text-3);padding:0 10px;line-height:1.6}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:44px;border-radius:var(--radius-btn);
  background:linear-gradient(135deg,#2EE6C5,#35C9E8);
  color:#04121A;font-weight:700;font-size:14px;
  box-shadow:0 8px 28px -8px rgba(46,230,197,.55);
  transition:transform .25s ease-out,box-shadow .25s ease-out,opacity .25s ease-out;
}
.side-cta:hover{transform:translateY(-2px);box-shadow:0 12px 32px -8px rgba(46,230,197,.75)}
.side-cta:active{transform:translateY(0)}
.drawer-mask{
  display:none;position:fixed;inset:0;z-index:65;
  background:rgba(4,8,20,.72);backdrop-filter:blur(4px);
}

/* ---------- 主区域 ---------- */
.page-shell{margin-left:var(--sidebar);min-height:100vh;display:flex;flex-direction:column}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  padding:52px 0 42px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(6,10,22,.80) 0%,rgba(6,10,22,.94) 62%,rgba(6,10,22,1) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li:not(:last-child)::after{content:"/";color:rgba(140,190,255,.40)}
.crumbs a{color:var(--text-3);transition:color .25s ease-out}
.crumbs a:hover{color:var(--text)}
.crumbs [aria-current="page"]{color:var(--primary)}
.crumbs i{font-size:12px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 13px;border-radius:999px;
  font-size:13px;line-height:1;border:1px solid transparent;
}
.badge-cat{background:rgba(76,141,255,.12);color:#9EC2FF;border-color:rgba(76,141,255,.32)}
.badge-accent{background:rgba(255,138,61,.12);color:#FFB27A;border-color:rgba(255,138,61,.34)}
.badge-time{background:rgba(255,255,255,.05);color:var(--text-3);border-color:var(--line)}
.article-title{
  font-size:clamp(26px,3.6vw,42px);
  line-height:1.25;
  font-weight:800;
  letter-spacing:.01em;
  margin-bottom:20px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
  max-width:900px;
}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;font-size:13px;color:var(--text-2)}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:8px}
.meta-row i{color:var(--primary-2);font-size:13px}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(140,190,255,.38)}

/* ---------- 文章主体布局 ---------- */
.article-section{padding:56px 0 88px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;align-items:start}
.article-main{max-width:780px;width:100%;margin:0 auto;min-width:0}
.article-side{display:none}

.panel{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.07);
  backdrop-filter:blur(14px);
}
.article-body{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.07);
  backdrop-filter:blur(14px);
  padding:36px 40px 44px;
  font-size:17px;
  line-height:1.85;
  color:#DCE6F7;
  overflow-wrap:break-word;
  word-break:break-word;
}
.article-body p{margin:0 0 1em}
.article-body > p:first-child{color:var(--text);font-size:17px}
.article-body h2{
  position:relative;
  font-size:clamp(20px,2.2vw,26px);
  font-weight:800;
  color:var(--text);
  line-height:1.4;
  margin:48px 0 20px;
  padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;
  background:linear-gradient(180deg,#2EE6C5,#35C9E8);
}
.article-body h3{font-size:19px;font-weight:700;color:var(--text);margin:32px 0 14px}
.article-body h4{font-size:17px;font-weight:700;color:var(--primary);margin:24px 0 12px}
.article-body a{color:var(--primary-2);border-bottom:1px solid rgba(76,141,255,.42);transition:color .25s ease-out,border-color .25s ease-out}
.article-body a:hover{color:var(--primary);border-color:rgba(46,230,197,.6)}
.article-body strong{color:var(--text);font-weight:700}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:4px}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--primary);opacity:.85;
}
.article-body ol{counter-reset:artnum}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:10px;counter-increment:artnum}
.article-body ol li::before{
  content:counter(artnum,decimal-leading-zero);
  position:absolute;left:0;top:0;font-size:13px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;
  background:rgba(255,255,255,.045);
  border-left:3px solid var(--primary);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-sm);margin:26px 0 10px;width:100%;height:auto}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:14px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body .table-scroll{overflow-x:auto;margin:24px 0;border:1px solid var(--line);border-radius:var(--radius-sm);-webkit-overflow-scrolling:touch}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
.article-body th,.article-body td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line)}
.article-body th{color:var(--primary);font-size:14px;font-weight:600;background:rgba(255,255,255,.03);white-space:nowrap}
.article-body td{color:var(--text-2)}
.article-body tr:last-child td{border-bottom:none}
.article-body hr{border:none;border-top:1px solid var(--line);margin:36px 0}
.article-body code{
  background:rgba(255,255,255,.07);border-radius:6px;padding:2px 7px;
  font-size:14px;color:#9FE9DA;
}

/* 空态 */
.empty-state{
  background:var(--glass);
  border:1px dashed rgba(140,190,255,.28);
  border-radius:var(--radius);
  padding:56px 28px;
  text-align:center;
}
.empty-state i{font-size:34px;color:var(--text-3);margin-bottom:16px;display:block}
.empty-state p{font-size:17px;color:var(--text);margin-bottom:20px}

/* 标签区 */
.tag-block{margin-top:34px;display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-block .tag-label{font-size:13px;color:var(--text-3);margin-right:4px}
.tag-pill{
  display:inline-flex;align-items:center;height:32px;padding:0 15px;
  border-radius:999px;font-size:13px;color:var(--text-2);
  background:rgba(255,255,255,.045);border:1px solid var(--line);
  transition:color .25s ease-out,border-color .25s ease-out,background .25s ease-out,transform .25s ease-out;
}
.tag-pill:hover{color:var(--primary);border-color:rgba(46,230,197,.42);background:rgba(46,230,197,.08);transform:translateY(-2px)}

/* 相关推荐 */
.related{margin-top:64px}
.section-head{margin-bottom:26px}
.section-head h2{font-size:clamp(20px,3.4vw,28px);font-weight:800;color:var(--text);line-height:1.35}
.section-head p{margin-top:10px;color:var(--text-2);font-size:15px;max-width:720px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.07);
  backdrop-filter:blur(14px);
  transition:transform .3s ease-out,border-color .3s ease-out;
}
.card:hover{transform:translateY(-4px);border-color:rgba(46,230,197,.38)}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.card:hover .card-cover img{transform:scale(1.04)}
.card-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,22,0) 45%,rgba(6,10,22,.72) 100%);
}
.card-cover .badge{position:absolute;left:14px;top:14px;z-index:2;background:rgba(6,10,22,.78);border-color:rgba(76,141,255,.42);color:#9EC2FF}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{font-size:17px;font-weight:700;line-height:1.45;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .25s ease-out}
.card:hover .card-title{color:var(--primary)}
.card-text{font-size:14px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3)}
.card-foot .more{display:inline-flex;align-items:center;gap:6px;color:var(--primary-2);transition:color .25s ease-out,gap .25s ease-out}
.card:hover .card-foot .more{color:var(--primary);gap:9px}

/* 侧栏推荐 */
.side-panel{padding:22px}
.side-panel h3{font-size:15px;font-weight:700;color:var(--primary);margin-bottom:16px;display:flex;align-items:center;gap:8px}
.side-list{display:flex;flex-direction:column;gap:14px}
.side-list a{display:block;padding:12px 14px;border-radius:var(--radius-sm);border:1px solid var(--line);background:rgba(255,255,255,.03);transition:border-color .25s ease-out,background .25s ease-out,transform .25s ease-out}
.side-list a:hover{border-color:rgba(46,230,197,.4);background:rgba(46,230,197,.07);transform:translateX(3px)}
.side-list strong{display:block;font-size:14px;font-weight:600;color:var(--text);line-height:1.5;margin-bottom:6px}
.side-list span{font-size:12px;color:var(--text-3)}

/* 返回入口 */
.back-row{margin-top:56px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:center}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;white-space:nowrap;
  transition:transform .25s ease-out,box-shadow .25s ease-out,background .25s ease-out,border-color .25s ease-out,color .25s ease-out;
}
.btn-primary{
  background:linear-gradient(135deg,#2EE6C5,#35C9E8);color:#04121A;
  box-shadow:0 8px 28px -8px rgba(46,230,197,.55);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px -8px rgba(46,230,197,.75)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px -10px rgba(46,230,197,.6)}
.btn-ghost{
  background:transparent;border:1px solid rgba(76,141,255,.45);color:#A9C7FF;
}
.btn-ghost:hover{background:rgba(46,230,197,.10);border-color:rgba(46,230,197,.55);color:var(--primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}

/* ---------- 底部 CTA ---------- */
.bottom-cta{
  margin-top:72px;padding:34px 36px;border-radius:var(--radius);
  background:linear-gradient(135deg,rgba(46,230,197,.10),rgba(76,141,255,.08)),rgba(255,255,255,.04);
  border:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:22px;align-items:center;justify-content:space-between;
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.07);
}
.bottom-cta h2{font-size:clamp(18px,2.2vw,24px);font-weight:800;line-height:1.4;margin-bottom:8px}
.bottom-cta p{font-size:14px;color:var(--text-2)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:auto;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,18,38,.6),rgba(6,10,22,1));
  padding:64px 0 32px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-col h3{font-size:14px;color:var(--primary);font-weight:700;margin-bottom:18px;letter-spacing:.02em}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand .brand-mark{
  width:36px;height:36px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#2EE6C5,#35C9E8);color:#04121A;font-weight:800;font-size:13px;
}
.footer-brand strong{font-size:15px;font-weight:700}
.footer-col p{font-size:14px;color:var(--text-2);line-height:1.8;max-width:420px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col ul a{font-size:14px;color:var(--text-2);transition:color .25s ease-out,padding-left .25s ease-out}
.footer-col ul a:hover{color:#fff;padding-left:4px}
.footer-bottom{
  margin-top:44px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom p{max-width:660px;line-height:1.7}

/* ---------- 返回顶部 ---------- */
.back-top{
  position:fixed;right:16px;bottom:16px;z-index:60;
  width:46px;height:46px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.07);border:1px solid var(--line);
  color:var(--text-2);backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  opacity:0;visibility:hidden;
  transition:opacity .3s ease-out,visibility .3s ease-out,color .25s ease-out,border-color .25s ease-out,transform .25s ease-out;
}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{color:var(--primary);border-color:rgba(46,230,197,.45);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (min-width:1024px){
  .mobile-topbar{display:none !important}
  .drawer-mask{display:none !important}
}
@media (max-width:1023px){
  .mobile-topbar{display:flex}
  .side-nav-wrap{
    transform:translateX(-100%);
    transition:transform .3s ease-out;
    width:82%;
    max-width:320px;
    padding-top:22px;
  }
  .side-nav-wrap.open{transform:translateX(0)}
  .drawer-mask.show{display:block}
  .page-shell{margin-left:0;padding-top:56px}
  .article-hero{padding:36px 0 32px}
  .article-section{padding:40px 0 64px}
  .article-body{padding:26px 22px 32px;font-size:16px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .mobile-brand small{display:none}
  .article-body{padding:22px 18px 28px;font-size:16px;line-height:1.8}
  .article-body h2{margin-top:36px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .bottom-cta{padding:26px 20px;flex-direction:column;align-items:flex-start}
  .bottom-cta .btn{width:100%}
  .back-row .btn{width:100%}
  .side-nav-wrap{width:86%}
}
@media (min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,780px) 300px;justify-content:center;gap:44px}
  .article-side{display:block;position:sticky;top:28px}
  .article-main{margin:0}
}

/* roulang page: category1 */
:root{
    --bg:#060A16;
    --bg-2:#0A1226;
    --primary:#2EE6C5;
    --primary-2:#4C8DFF;
    --accent:#FF8A3D;
    --urgent:#FF4D6D;
    --text:#E9F1FF;
    --text-2:#8FA3C4;
    --text-3:#5F7294;
    --glass:rgba(255,255,255,.055);
    --line:rgba(140,190,255,.14);
    --radius-card:18px;
    --radius-sm:14px;
    --radius-btn:12px;
    --shadow:0 20px 60px -24px rgba(0,0,0,.65);
  }
  *,*::before,*::after{box-sizing:border-box}
  .site-body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  .site-body img{max-width:100%;display:block;height:auto}
  .site-body a{color:inherit;text-decoration:none}
  .site-body ul,.site-body ol{margin:0;padding:0;list-style:none}
  .site-body h1,.site-body h2,.site-body h3,.site-body h4,.site-body p,.site-body dl,.site-body dt,.site-body dd{margin:0}
  .site-body button,.site-body input{font:inherit}
  .site-body ::selection{background:rgba(46,230,197,.28)}

  .container{width:100%;max-width:1280px;margin:0 auto;padding-left:24px;padding-right:24px}
  @media (max-width:640px){.container{padding-left:16px;padding-right:16px}}

  /* ============ 布局骨架 ============ */
  .app-shell{display:flex;min-height:100vh;align-items:stretch}
  .app-main{flex:1 1 auto;min-width:0;margin-left:232px;display:flex;flex-direction:column}
  .section{padding:96px 0}
  .section-head{max-width:760px;margin-bottom:32px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;line-height:1;
    color:var(--primary);background:rgba(46,230,197,.10);
    border:1px solid rgba(46,230,197,.22);border-radius:999px;padding:8px 14px;margin-bottom:16px;
  }
  .section-head h2{font-size:clamp(20px,3.4vw,30px);line-height:1.25;font-weight:700;letter-spacing:.01em}
  .section-head p{margin-top:14px;color:var(--text-2);font-size:15px;max-width:700px}
  .divider{height:1px;background:linear-gradient(90deg,rgba(140,190,255,.20),rgba(140,190,255,0));border:0}

  /* ============ 左侧导航 ============ */
  .sidebar{
    position:fixed;top:0;left:0;bottom:0;width:232px;z-index:60;
    display:flex;flex-direction:column;gap:20px;
    padding:22px 16px 20px;
    background:linear-gradient(180deg,#0A1226 0%,#070C1B 100%);
    border-right:1px solid var(--line);
  }
  .side-brand{display:flex;align-items:center;gap:12px;padding:6px 8px 16px;border-bottom:1px solid rgba(140,190,255,.10)}
  .brand-mark{
    flex:0 0 auto;width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
    background:linear-gradient(135deg,#2EE6C5,#35C9E8);color:#04121A;
    font-size:14px;font-weight:800;
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
  .brand-text strong{font-size:15px;font-weight:800;color:var(--text)}
  .brand-text em{font-style:normal;font-size:11.5px;color:var(--text-3);letter-spacing:.02em}
  .nav-group-title{display:block;font-size:12px;color:var(--text-3);padding:0 12px 8px}
  .side-nav{display:flex;flex-direction:column;gap:4px;flex:1 1 auto}
  .side-link{
    position:relative;display:flex;align-items:center;gap:12px;height:44px;padding:0 12px;
    border-radius:12px;color:var(--text-2);font-size:14px;
    transition:background .22s ease-out,color .22s ease-out;
  }
  .side-link i{width:18px;font-size:18px;text-align:center;color:var(--primary-2);transition:color .22s ease-out}
  .side-link:hover{background:rgba(46,230,197,.08);color:var(--text)}
  .side-link:hover i{color:var(--primary)}
  .side-link.active{background:rgba(46,230,197,.10);color:var(--primary);font-weight:600}
  .side-link.active i{color:var(--primary)}
  .side-link.active::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:3px;background:var(--primary)}
  .side-link:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
  .side-foot{padding-top:16px;border-top:1px solid rgba(140,190,255,.10)}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:9px;
    height:46px;padding:0 22px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:700;cursor:pointer;border:1px solid transparent;
    transition:transform .22s ease-out,box-shadow .22s ease-out,background .22s ease-out,color .22s ease-out,border-color .22s ease-out;
  }
  .btn-primary{
    background:linear-gradient(135deg,#2EE6C5,#35C9E8);color:#04121A;
    box-shadow:0 8px 28px -8px rgba(46,230,197,.55);
  }
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px -8px rgba(46,230,197,.75)}
  .btn-primary:active{transform:translateY(0);box-shadow:0 8px 28px -8px rgba(46,230,197,.55)}
  .btn-ghost{background:transparent;border-color:rgba(46,230,197,.45);color:var(--primary)}
  .btn-ghost:hover{background:rgba(46,230,197,.10);transform:translateY(-2px)}
  .btn-ghost:active{transform:translateY(0)}
  .btn-block{width:100%}
  .btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

  /* ============ 移动端顶栏与抽屉 ============ */
  .mobile-topbar{
    display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:65;
    align-items:center;justify-content:space-between;gap:12px;padding:0 16px;
    background:rgba(7,12,27,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);
  }
  .mobile-topbar .top-badge{display:flex;align-items:center;gap:10px;min-width:0}
  .mobile-topbar .top-badge strong{font-size:14px;font-weight:800;white-space:nowrap}
  .mobile-topbar .top-badge span{font-size:11.5px;color:var(--text-3)}
  .menu-btn{
    width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
    background:rgba(255,255,255,.05);color:var(--text);cursor:pointer;display:grid;place-items:center;
    transition:color .22s ease-out,border-color .22s ease-out;
  }
  .menu-btn:hover{color:var(--primary);border-color:rgba(46,230,197,.38)}
  .menu-btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
  .drawer-mask{
    position:fixed;inset:0;background:rgba(4,8,20,.72);backdrop-filter:blur(4px);
    opacity:0;pointer-events:none;transition:opacity .28s ease-out;z-index:58;
  }
  .drawer-mask.show{opacity:1;pointer-events:auto}

  @media (max-width:1023px){
    .sidebar{transform:translateX(-100%);transition:transform .3s ease-out;width:82%;max-width:320px;box-shadow:var(--shadow)}
    .sidebar.open{transform:translateX(0)}
    .app-main{margin-left:0;padding-top:56px}
    .mobile-topbar{display:flex}
    .section{padding:72px 0}
  }
  @media (max-width:640px){
    .section{padding:56px 0}
  }

  /* ============ 内页 Banner ============ */
  .page-hero{
    position:relative;overflow:hidden;
    background-size:cover;background-position:center;
    border-bottom:1px solid var(--line);
  }
  .page-hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(90deg,rgba(6,10,22,.96) 0%,rgba(6,10,22,.82) 48%,rgba(6,10,22,.58) 100%),
               linear-gradient(180deg,rgba(6,10,22,.35) 0%,rgba(6,10,22,.92) 100%);
  }
  .page-hero-inner{position:relative;z-index:2;padding:92px 0 80px;max-width:780px}
  .hero-kicker{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--primary-2);
    background:rgba(76,141,255,.10);border:1px solid rgba(76,141,255,.26);
    border-radius:999px;padding:7px 14px;
  }
  .page-hero h1{
    margin-top:18px;font-size:clamp(26px,6vw,44px);line-height:1.2;font-weight:800;letter-spacing:.01em;
  }
  .page-hero h1 .h1-sub{display:block;margin-top:14px;font-size:clamp(16px,2.6vw,22px);font-weight:600;color:var(--primary)}
  .hero-sub{margin-top:20px;font-size:17px;color:var(--text-2);max-width:660px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
  @media (max-width:640px){
    .page-hero-inner{padding:64px 0 56px}
    .hero-sub{font-size:16px}
    .hero-actions{flex-direction:column}
    .hero-actions .btn{width:100%}
  }

  /* ============ 面包屑 ============ */
  .breadcrumb-wrap{background:rgba(10,18,38,.6);border-bottom:1px solid rgba(140,190,255,.10)}
  .breadcrumb{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:14px 0;font-size:13px;color:var(--text-3)}
  .breadcrumb a{display:inline-flex;align-items:center;gap:7px;color:var(--text-2);transition:color .22s ease-out}
  .breadcrumb a:hover{color:var(--primary)}
  .breadcrumb a:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
  .breadcrumb .sep{opacity:.4}
  .breadcrumb .current{color:var(--primary-2)}

  /* ============ 说明卡 ============ */
  .note-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
  @media (max-width:1023px){.note-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media (max-width:640px){.note-grid{grid-template-columns:1fr}}
  .note-card{
    background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:24px;backdrop-filter:blur(14px);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.07);
    transition:transform .3s ease-out,border-color .3s ease-out;
  }
  .note-card:hover{transform:translateY(-4px);border-color:rgba(46,230,197,.38)}
  .note-icon{
    width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
    background:rgba(46,230,197,.10);border:1px solid rgba(46,230,197,.26);color:var(--primary);font-size:18px;
    margin-bottom:18px;
  }
  .note-card h3{font-size:18px;font-weight:700;line-height:1.4}
  .note-card p{margin-top:10px;color:var(--text-2);font-size:15px}

  /* ============ 步骤流程 ============ */
  .steps{position:relative;padding-left:8px;display:flex;flex-direction:column;gap:30px}
  .steps::before{
    content:"";position:absolute;left:28px;top:14px;bottom:14px;width:1px;
    background:linear-gradient(180deg,rgba(46,230,197,.55),rgba(76,141,255,.20));
  }
  .step{position:relative;display:flex;gap:22px;align-items:flex-start}
  .step-num{
    position:relative;z-index:1;flex:0 0 40px;width:40px;height:40px;border-radius:50%;
    display:grid;place-items:center;background:#0A1226;border:1px solid rgba(46,230,197,.35);
    color:var(--primary);font-weight:700;font-size:13.5px;font-variant-numeric:tabular-nums;
  }
  .step-body{flex:1 1 auto;min-width:0;padding-top:2px}
  .step-body h3{font-size:18px;font-weight:700;line-height:1.45}
  .step-body p{margin-top:8px;color:var(--text-2);font-size:15px;max-width:760px}
  .step-tip{
    display:inline-flex;align-items:center;gap:8px;margin-top:12px;font-size:13px;color:var(--text-3);
    background:rgba(255,255,255,.04);border:1px solid rgba(140,190,255,.12);border-radius:999px;padding:5px 12px;
  }
  @media (max-width:640px){
    .steps{gap:24px}
    .steps::before{left:20px}
    .step{gap:16px}
    .step-num{flex:0 0 34px;width:34px;height:34px;font-size:12.5px}
  }

  /* ============ 内容卡 ============ */
  .card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
  @media (max-width:1023px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media (max-width:640px){.card-grid{grid-template-columns:1fr}}
  .content-card{
    display:flex;flex-direction:column;overflow:hidden;
    background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-card);
    backdrop-filter:blur(14px);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.07);
    transition:transform .3s ease-out,border-color .3s ease-out,box-shadow .3s ease-out;
  }
  .content-card:hover{transform:translateY(-4px);border-color:rgba(46,230,197,.38)}
  .content-card:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
  .card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0A1226}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
  .content-card:hover .card-media img{transform:scale(1.04)}
  .card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,22,.05),rgba(6,10,22,.65))}
  .card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
  .card-body h3{
    font-size:17px;font-weight:700;line-height:1.45;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .card-body p{
    color:var(--text-2);font-size:14.5px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .card-link{margin-top:auto;font-size:14px;color:var(--primary-2);display:inline-flex;align-items:center;gap:8px}
  .content-card:hover .card-link{color:var(--primary)}

  .badge{
    display:inline-flex;align-items:center;gap:6px;font-size:12px;line-height:1;
    border-radius:999px;padding:6px 12px;border:1px solid transparent;white-space:nowrap;
  }
  .badge-blue{color:#BBD4FF;background:rgba(76,141,255,.12);border-color:rgba(76,141,255,.30)}
  .badge-line{color:var(--text-3);background:rgba(255,255,255,.05);border-color:rgba(140,190,255,.14)}

  /* ============ 信息要点表 ============ */
  .fact-panel{
    background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:8px 26px;backdrop-filter:blur(14px);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.07);
  }
  .fact-row{display:grid;grid-template-columns:220px minmax(0,1fr);gap:20px;padding:20px 0;border-bottom:1px solid rgba(140,190,255,.10)}
  .fact-row:last-child{border-bottom:0}
  .fact-row dt{color:var(--primary);font-weight:600;font-size:15px}
  .fact-row dd{color:var(--text-2);font-size:15px}
  @media (max-width:640px){
    .fact-panel{padding:6px 18px}
    .fact-row{grid-template-columns:1fr;gap:6px;padding:16px 0}
  }

  /* ============ FAQ ============ */
  .faq-list{display:flex;flex-direction:column;gap:14px}
  .faq-item{
    background:var(--glass);border:1px solid var(--line);border-radius:16px;
    backdrop-filter:blur(14px);overflow:hidden;
    transition:border-color .25s ease-out,background .25s ease-out;
  }
  .faq-item[open]{border-color:rgba(46,230,197,.35);background:rgba(255,255,255,.07)}
  .faq-item summary{
    position:relative;list-style:none;cursor:pointer;display:flex;align-items:center;
    justify-content:space-between;gap:16px;min-height:52px;padding:14px 22px 14px 24px;
    font-size:16px;font-weight:700;color:var(--text);transition:color .22s ease-out;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary::before{
    content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;
    background:var(--primary);opacity:0;transition:opacity .25s ease-out;
  }
  .faq-item[open] summary::before{opacity:1}
  .faq-item summary:hover{color:var(--primary)}
  .faq-item summary:focus-visible{outline:2px solid var(--primary);outline-offset:-2px}
  .faq-item summary i{color:var(--text-3);font-size:14px;transition:transform .3s ease-out,color .3s ease-out}
  .faq-item[open] summary i{transform:rotate(180deg);color:var(--primary)}
  .faq-body{padding:16px 24px 22px;color:var(--text-2);font-size:15px;border-top:1px solid rgba(140,190,255,.10)}

  /* ============ CTA 横幅 ============ */
  .cta-banner{padding:0 0 96px}
  .cta-inner{
    position:relative;overflow:hidden;border-radius:22px;padding:44px;display:flex;
    align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
    background:linear-gradient(135deg,rgba(46,230,197,.14),rgba(76,141,255,.10) 55%,rgba(255,255,255,.04));
    border:1px solid rgba(46,230,197,.28);
    box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
    backdrop-filter:blur(14px);
  }
  .cta-inner h2{font-size:clamp(20px,3.4vw,28px);line-height:1.3;font-weight:700}
  .cta-inner p{margin-top:10px;color:var(--text-2);font-size:15px;max-width:560px}
  .cta-actions{display:flex;gap:14px;flex-wrap:wrap}
  @media (max-width:1023px){.cta-banner{padding-bottom:72px}}
  @media (max-width:640px){
    .cta-banner{padding-bottom:56px}
    .cta-inner{padding:28px 22px;border-radius:18px}
    .cta-actions{width:100%;flex-direction:column}
    .cta-actions .btn{width:100%}
  }

  /* ============ 页脚 ============ */
  .site-footer{border-top:1px solid var(--line);background:linear-gradient(180deg,#080D1D,#060A16);padding:64px 0 28px;margin-top:auto}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
  @media (max-width:1023px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}}
  @media (max-width:640px){.footer-grid{grid-template-columns:1fr;gap:26px}}
  .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
  .footer-brand strong{font-size:16px;font-weight:800}
  .footer-col p{color:var(--text-2);font-size:14px;max-width:420px}
  .footer-col h3{font-size:14px;font-weight:700;color:var(--primary);margin-bottom:14px}
  .footer-col ul{display:flex;flex-direction:column;gap:10px}
  .footer-col li a{color:var(--text-2);font-size:14px;transition:color .22s ease-out}
  .footer-col li a:hover{color:#FFFFFF}
  .footer-col li a:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
  .footer-bottom{
    margin-top:40px;padding-top:22px;border-top:1px solid rgba(140,190,255,.10);
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  }
  .footer-bottom p{color:var(--text-3);font-size:13px}
  @media (max-width:640px){.site-footer{padding:48px 0 24px}.footer-bottom{flex-direction:column;gap:8px}}

  /* ============ 返回顶部 ============ */
  .to-top{
    position:fixed;right:16px;bottom:16px;width:44px;height:44px;border-radius:50%;
    border:1px solid var(--line);background:rgba(10,18,38,.72);backdrop-filter:blur(14px);
    color:var(--text-2);cursor:pointer;display:grid;place-items:center;z-index:70;
    opacity:0;pointer-events:none;
    transition:opacity .25s ease-out,transform .25s ease-out,color .25s ease-out,border-color .25s ease-out;
  }
  .to-top.show{opacity:1;pointer-events:auto}
  .to-top:hover{color:var(--primary);border-color:rgba(46,230,197,.38);transform:translateY(-2px)}
  .to-top:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* roulang page: category2 */
:root{
  --bg:#060A16;
  --bg-2:#0A1226;
  --surface:rgba(255,255,255,.055);
  --border:rgba(140,190,255,.14);
  --border-strong:rgba(140,190,255,.28);
  --primary:#2EE6C5;
  --primary-2:#4C8DFF;
  --accent:#FF8A3D;
  --urgent:#FF4D6D;
  --text:#E9F1FF;
  --muted:#8FA3C4;
  --weak:#5F7294;
  --r-card:18px;
  --r-inner:14px;
  --r-btn:12px;
  --shadow:0 20px 60px -24px rgba(0,0,0,.65);
  --nav-w:232px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 480px at 12% -6%, rgba(46,230,197,.10), transparent 62%),
    radial-gradient(760px 420px at 92% 2%, rgba(76,141,255,.12), transparent 62%);
  background-repeat:no-repeat;
  background-attachment:fixed;
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
body a{color:var(--primary-2);text-decoration:none;transition:color .25s ease}
body a:hover{color:var(--primary)}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:rgba(46,230,197,.28);color:#04121A}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.page-main{min-height:100vh;position:relative;z-index:1}

/* ---------- 左侧导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  padding:22px 14px 18px;
  display:flex;flex-direction:column;
  background:linear-gradient(180deg,#0A1226 0%,#070D1C 72%,#060A16 100%);
  border-right:1px solid var(--border);
  z-index:60;overflow-y:auto;
}
.nav-brand{display:flex;align-items:center;gap:10px;padding:2px 8px 16px;border-bottom:1px solid rgba(140,190,255,.10);margin-bottom:14px}
.brand-mark{
  flex:0 0 auto;width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#2EE6C5,#35C9E8);color:#04121A;font-weight:800;font-size:13px;
}
.nav-brand strong{display:block;font-size:14px;line-height:1.35;font-weight:600;letter-spacing:.01em}
.nav-brand .sub{display:block;font-size:11px;color:var(--weak);line-height:1.6;margin-top:2px}
.nav-group-title{display:block;font-size:12px;color:var(--weak);letter-spacing:.06em;padding:0 12px 8px}
.side-link{
  position:relative;display:flex;align-items:center;gap:12px;height:44px;padding:0 12px;margin-bottom:6px;
  border-radius:12px;color:var(--muted);font-size:14px;transition:background .25s ease,color .25s ease;
}
.side-link i{width:18px;font-size:16px;text-align:center;color:var(--primary-2);transition:color .25s ease}
.side-link:hover{background:rgba(255,255,255,.05);color:#fff}
.side-link:hover i{color:var(--primary)}
.side-link.active{background:rgba(46,230,197,.10);color:var(--primary);font-weight:600}
.side-link.active i{color:var(--primary)}
.side-link.active::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:2px;background:var(--primary)}
.side-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-foot{margin-top:auto;padding-top:18px;border-top:1px solid rgba(140,190,255,.10)}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobile-bar{
  position:fixed;top:0;left:0;right:0;height:56px;z-index:70;
  display:none;align-items:center;justify-content:space-between;gap:12px;
  padding:0 16px;background:rgba(8,14,30,.92);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.mobile-brand{display:flex;align-items:center;gap:9px;color:var(--text)}
.mobile-brand strong{font-size:14px;font-weight:600;letter-spacing:.01em}
.mobile-brand .brand-mark{width:30px;height:30px;border-radius:9px;font-size:11px}
.menu-btn{
  width:40px;height:40px;border-radius:11px;border:1px solid var(--border);
  background:rgba(255,255,255,.05);color:var(--text);cursor:pointer;transition:border-color .25s ease,color .25s ease;
}
.menu-btn:hover{border-color:rgba(46,230,197,.45);color:var(--primary)}
.drawer-mask{
  position:fixed;inset:0;z-index:80;background:rgba(4,8,20,.72);backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:82%;max-width:320px;z-index:90;
  padding:20px 16px;background:linear-gradient(180deg,#0A1226,#070D1C);
  border-right:1px solid var(--border);overflow-y:auto;
  transform:translateX(-102%);transition:transform .3s ease;
  display:flex;flex-direction:column;
}
.drawer.open{transform:translateX(0)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  text-decoration:none;transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
}
.btn-primary{background:linear-gradient(135deg,#2EE6C5,#35C9E8);color:#04121A;box-shadow:0 8px 28px -8px rgba(46,230,197,.55)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px -8px rgba(46,230,197,.75);color:#04121A}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px -10px rgba(46,230,197,.5)}
.btn-ghost{background:transparent;border-color:rgba(46,230,197,.45);color:var(--primary)}
.btn-ghost:hover{background:rgba(46,230,197,.10);color:var(--primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-accent{background:transparent;border-color:rgba(255,138,61,.5);color:var(--accent)}
.btn-accent:hover{background:rgba(255,138,61,.12);color:var(--accent);transform:translateY(-2px)}
.btn-block{width:100%}
.btn-sm{height:38px;padding:0 16px;font-size:13px;border-radius:10px}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:26px 0 6px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:0;font-size:13px;color:var(--weak)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{opacity:.4}
.breadcrumb .cur{color:var(--primary);font-weight:600}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--border);box-shadow:var(--shadow);
  min-height:400px;display:flex;align-items:center;margin-top:14px;
}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(4,8,20,.96) 0%,rgba(4,8,20,.80) 46%,rgba(4,8,20,.46) 100%);
}
.hero-inner{position:relative;z-index:2;padding:56px 48px;max-width:780px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(255,138,61,.12);border:1px solid rgba(255,138,61,.35);color:var(--accent);
  font-size:12px;letter-spacing:.02em;
}
.page-title{
  font-size:clamp(26px,6vw,44px);line-height:1.25;font-weight:700;
  margin:16px 0 14px;letter-spacing:.01em;
}
.hero-sub{font-size:16px;line-height:1.8;color:var(--muted);margin:0 0 28px;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{display:flex;flex-wrap:wrap;gap:32px;list-style:none;margin:32px 0 0;padding:22px 0 0;border-top:1px dashed rgba(140,190,255,.20)}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.hero-stats strong{font-size:26px;font-weight:700;color:var(--primary);line-height:1.2}
.hero-stats span{font-size:13px;color:var(--weak)}

/* ---------- 板块 ---------- */
.section{padding:64px 0}
.section-tight{padding-top:0}
.sec-head{max-width:760px;margin-bottom:32px}
.sec-head h2{font-size:clamp(20px,3.4vw,30px);line-height:1.3;font-weight:700;margin:10px 0 12px}
.sec-head p{font-size:15px;color:var(--muted);margin:0}
.sec-label{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--primary-2);letter-spacing:.04em}

/* ---------- 福利阶梯 ---------- */
.ladder{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;position:relative}
.step{
  position:relative;padding:26px 26px 24px;border-radius:var(--r-card);
  background:var(--surface);border:1px solid var(--border);
  backdrop-filter:blur(14px);box-shadow:inset 0 1px 0 rgba(255,255,255,.07),var(--shadow);
  transition:transform .3s ease,border-color .3s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(46,230,197,.38)}
.step::before{content:"";position:absolute;left:26px;top:0;width:38px;height:3px;border-radius:0 0 3px 3px;background:linear-gradient(90deg,#2EE6C5,#35C9E8)}
.step-num{font-size:30px;font-weight:800;color:rgba(46,230,197,.34);line-height:1;letter-spacing:.02em}
.step h3{font-size:19px;font-weight:700;margin:12px 0 8px}
.step .step-cond{font-size:13px;color:var(--weak);margin:0 0 16px}
.step ul{list-style:none;margin:0 0 22px;padding:0;display:grid;gap:10px}
.step ul li{position:relative;padding-left:20px;font-size:14.5px;color:var(--muted)}
.step ul li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--primary-2)}
.step-tag{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  font-size:12px;border:1px solid rgba(255,138,61,.42);color:var(--accent);background:rgba(255,138,61,.10);
  margin-bottom:14px;
}

/* ---------- 福利卡网格 ---------- */
.welfare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:start}
.welfare-card{
  border-radius:var(--r-card);overflow:hidden;background:var(--surface);
  border:1px solid var(--border);box-shadow:inset 0 1px 0 rgba(255,255,255,.07),var(--shadow);
  transition:transform .3s ease,border-color .3s ease;
}
.welfare-card:hover{transform:translateY(-4px);border-color:rgba(46,230,197,.38)}
.wc-media{position:relative;overflow:hidden;aspect-ratio:16/9;background:rgba(255,255,255,.03)}
.wc-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.welfare-card:hover .wc-media img{transform:scale(1.04)}
.wc-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,8,20,0) 40%,rgba(4,8,20,.72) 100%)}
.wc-tag{
  position:absolute;left:16px;top:16px;z-index:2;padding:4px 12px;border-radius:999px;
  font-size:12px;color:var(--accent);background:rgba(6,10,22,.72);border:1px solid rgba(255,138,61,.45);
}
.wc-body{padding:22px 24px 24px}
.wc-body h3{font-size:17px;font-weight:700;margin:0 0 10px}
.wc-body p{font-size:14.5px;color:var(--muted);margin:0 0 16px}
.wc-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary)}
.wc-link i{transition:transform .25s ease}
.wc-link:hover i{transform:translateX(4px)}

/* ---------- 条件清单 ---------- */
.conditions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.cond-item{
  display:flex;gap:14px;padding:20px 22px;border-radius:var(--r-inner);
  background:rgba(255,255,255,.035);border:1px solid var(--border);
  transition:border-color .25s ease,background .25s ease;
}
.cond-item:hover{border-color:rgba(46,230,197,.32);background:rgba(255,255,255,.05)}
.cond-item i{color:var(--primary);font-size:16px;margin-top:5px}
.cond-item strong{display:block;font-size:15px;font-weight:600;margin-bottom:4px}
.cond-item span{font-size:14px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px}
.faq-item{
  border-radius:var(--r-card);overflow:hidden;background:var(--surface);
  border:1px solid var(--border);transition:border-color .25s ease;
}
.faq-item[open]{border-color:rgba(46,230,197,.32)}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:52px;padding:16px 22px 16px 26px;font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:2px;
  background:var(--primary);opacity:0;transition:opacity .25s ease;
}
.faq-item[open] summary::before{opacity:1}
.faq-item summary .chev{color:var(--primary-2);font-size:14px;transition:transform .3s ease}
.faq-item[open] summary .chev{transform:rotate(180deg)}
.faq-body{padding:0 26px 20px;font-size:15px;color:var(--muted);line-height:1.8}

/* ---------- 咨询 ---------- */
.consult-grid{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:start}
.consult-intro h2{font-size:clamp(20px,3.4vw,30px);line-height:1.3;font-weight:700;margin:10px 0 14px}
.consult-intro p{font-size:15px;color:var(--muted);margin:0 0 22px}
.consult-points{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.consult-points li{display:flex;gap:12px;font-size:14.5px;color:var(--muted)}
.consult-points i{color:var(--primary);margin-top:5px}
.form-card{
  padding:28px;border-radius:var(--r-card);background:var(--surface);
  border:1px solid var(--border);backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),var(--shadow);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;color:var(--muted);margin-bottom:8px}
.field .req{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--primary);margin-left:6px;vertical-align:middle}
.field input,.field textarea{
  width:100%;padding:12px 14px;border-radius:12px;font-size:15px;
  background:rgba(255,255,255,.04);border:1px solid rgba(140,190,255,.18);color:var(--text);
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.field input::placeholder,.field textarea::placeholder{color:var(--weak)}
.field input:hover,.field textarea:hover{border-color:rgba(140,190,255,.32)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(46,230,197,.14);background:rgba(255,255,255,.06)}
.field textarea{min-height:120px;resize:vertical}
.form-note{font-size:12px;color:var(--weak);line-height:1.8;margin:14px 0 0}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:72px;padding:64px 0 28px;
  border-top:1px solid var(--border);
  background:rgba(10,18,38,.62);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand strong{font-size:15px;font-weight:600}
.footer-col h3{font-size:14px;font-weight:600;color:var(--primary);margin:0 0 16px}
.footer-col p{font-size:13px;color:var(--weak);line-height:1.85;margin:0}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:var(--muted)}
.footer-col ul a:hover{color:#fff}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(140,190,255,.10);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:12px;color:var(--weak);
}
.footer-bottom p{margin:0}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:16px;bottom:16px;z-index:65;
  width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;cursor:pointer;
  background:rgba(255,255,255,.07);border:1px solid var(--border);
  color:var(--primary);backdrop-filter:blur(12px);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease,transform .25s ease;
}
.to-top:hover{transform:translateY(-3px);border-color:rgba(46,230,197,.45)}

/* ---------- 响应式 ---------- */
@media (min-width:1024px){
  .page-main{margin-left:var(--nav-w)}
  .site-footer{margin-left:var(--nav-w)}
  .section{padding:96px 0}
  .section-tight{padding-top:0}
}
@media (max-width:1023px){
  .side-nav{display:none}
  .mobile-bar{display:flex}
  .page-main{padding-top:56px}
  .hero-inner{padding:40px 28px}
  .consult-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .section{padding:72px 0}
  .section-tight{padding-top:0}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .hero{min-height:0;margin-top:10px}
  .hero-inner{padding:32px 20px 36px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:20px;justify-content:space-between}
  .ladder,.welfare-grid,.conditions{grid-template-columns:1fr}
  .welfare-card:nth-child(2n){margin-top:0}
  .section{padding:56px 0}
  .section-tight{padding-top:0}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column}
  .form-card{padding:22px 18px}
}
@media (min-width:768px) and (max-width:1023px){
  .welfare-card:nth-child(2n){margin-top:26px}
}
@media (min-width:1024px){
  .welfare-card:nth-child(2n){margin-top:34px}
}

/* roulang page: category3 */
:root{
  --bg:#060A16;
  --bg-2:#0A1226;
  --bg-3:#0D1730;
  --primary:#2EE6C5;
  --primary-2:#4C8DFF;
  --accent:#FF8A3D;
  --urgent:#FF4D6D;
  --text:#E9F1FF;
  --text-2:#8FA3C4;
  --text-3:#5F7294;
  --glass:rgba(255,255,255,.055);
  --glass-2:rgba(255,255,255,.04);
  --line:rgba(140,190,255,.14);
  --line-2:rgba(140,190,255,.10);
  --line-primary:rgba(46,230,197,.38);
  --r-card:18px;
  --r-sm:14px;
  --r-btn:12px;
  --shadow:0 20px 60px -24px rgba(0,0,0,.65);
  --nav-w:232px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(680px 420px at 82% -6%, rgba(76,141,255,.14), transparent 68%),
    radial-gradient(560px 380px at 6% 108%, rgba(46,230,197,.10), transparent 70%);
  pointer-events:none;
  z-index:0;
}

img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}

:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:6px;
}

.container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}

/* ============ 左侧 App Shell 导航 ============ */
.side-nav{
  position:fixed;
  top:0;
  left:0;
  bottom:0;
  width:var(--nav-w);
  padding:22px 16px;
  display:flex;
  flex-direction:column;
  gap:6px;
  background:linear-gradient(180deg, rgba(10,18,38,.96), rgba(6,10,22,.98));
  border-right:1px solid var(--line-2);
  backdrop-filter:blur(14px);
  z-index:60;
  overflow-y:auto;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  padding:6px 8px 18px;
  border-bottom:1px solid var(--line-2);
  margin-bottom:12px;
}

.brand-mark{
  flex:0 0 auto;
  width:38px;
  height:38px;
  border-radius:12px;
  display:grid;
  place-items:center;
  background:linear-gradient(135deg,#2EE6C5,#35C9E8);
  color:#04121A;
  font-weight:700;
  font-size:14px;
  letter-spacing:0;
  box-shadow:0 8px 22px -10px rgba(46,230,197,.7);
}

.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:15px;font-weight:700;letter-spacing:.01em;color:var(--text)}
.brand-text span{font-size:11px;color:var(--text-3);letter-spacing:.04em}

.nav-group-title{
  font-size:12px;
  color:var(--text-3);
  padding:8px 12px 4px;
  letter-spacing:.06em;
}

.side-link{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  height:44px;
  padding:0 12px;
  border-radius:var(--r-btn);
  color:var(--text-2);
  font-size:14px;
  transition:background .25s var(--ease), color .25s var(--ease), transform .25s var(--ease);
}

.side-link i{width:18px;font-size:15px;text-align:center;color:var(--primary-2);transition:color .25s var(--ease)}
.side-link::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  bottom:9px;
  width:3px;
  border-radius:3px;
  background:var(--primary);
  opacity:0;
  transition:opacity .25s var(--ease);
}
.side-link:hover{background:rgba(255,255,255,.05);color:var(--text)}
.side-link:hover i{color:var(--primary)}
.side-link.active{
  background:rgba(46,230,197,.10);
  color:var(--primary);
  font-weight:600;
}
.side-link.active i{color:var(--primary)}
.side-link.active::before{opacity:1}

.side-foot{
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--line-2);
}
.side-cta{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  width:100%;
  min-height:46px;
  border-radius:var(--r-btn);
  background:linear-gradient(135deg,#2EE6C5,#35C9E8);
  color:#04121A;
  font-weight:700;
  font-size:14px;
  box-shadow:0 8px 28px -8px rgba(46,230,197,.55);
  transition:transform .25s var(--ease), box-shadow .25s var(--ease);
}
.side-cta:hover{transform:translateY(-2px);box-shadow:0 12px 30px -8px rgba(46,230,197,.75)}
.side-cta:active{transform:translateY(0)}

/* ============ 移动端顶部栏 ============ */
.mobile-top{
  display:none;
  position:sticky;
  top:0;
  z-index:70;
  height:56px;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  background:rgba(8,14,30,.92);
  border-bottom:1px solid var(--line-2);
  backdrop-filter:blur(14px);
}
.mobile-brand{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:700}
.mobile-brand .brand-mark{width:32px;height:32px;border-radius:10px;font-size:12px}
.mobile-brand small{display:block;font-size:10px;font-weight:400;color:var(--text-3);letter-spacing:.04em}
.menu-toggle{
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  color:var(--text);
  display:grid;place-items:center;
  font-size:16px;
  transition:border-color .25s var(--ease), color .25s var(--ease);
}
.menu-toggle:hover{border-color:var(--line-primary);color:var(--primary)}

.nav-mask{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(4,8,20,.72);
  backdrop-filter:blur(4px);
  z-index:65;
}
.nav-mask.show{display:block}

/* ============ 主区域 ============ */
.app-main{
  margin-left:var(--nav-w);
  padding:32px 0 0;
  position:relative;
  z-index:1;
}

/* ============ 面包屑 ============ */
.breadcrumb{margin-bottom:26px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb a{color:var(--text-2);transition:color .25s var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--text-3);opacity:.4}
.breadcrumb .current{color:var(--primary);font-weight:600}

/* ============ 通用板块 ============ */
.section{padding:56px 0 0}
.section:last-of-type{padding-bottom:8px}
.section-head{margin-bottom:32px;max-width:820px}
.section-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--primary-2);
  padding:5px 12px;
  border:1px solid rgba(76,141,255,.28);
  border-radius:999px;
  background:rgba(76,141,255,.08);
  margin-bottom:14px;
}
.section-head h2{
  font-size:clamp(20px,3.4vw,30px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:.01em;
}
.section-head p{
  margin-top:12px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.8;
}

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  border-radius:22px;
  border:1px solid var(--line);
  background:#0A1226 url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:56px 48px 44px;
  box-shadow:var(--shadow);
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg, rgba(6,10,22,.95) 0%, rgba(6,10,22,.84) 46%, rgba(6,10,22,.44) 100%);
}
.hero > *{position:relative;z-index:1}

.hero h1{
  font-size:clamp(26px,6vw,44px);
  line-height:1.22;
  font-weight:700;
  max-width:760px;
  letter-spacing:.01em;
}
.hero h1 em{
  font-style:normal;
  color:var(--primary);
}
.hero-sub{
  margin-top:18px;
  max-width:660px;
  color:var(--text-2);
  font-size:16px;
  line-height:1.8;
}

.search-box{
  margin-top:28px;
  display:flex;
  align-items:center;
  gap:10px;
  max-width:640px;
  padding:8px 8px 8px 16px;
  border-radius:16px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  transition:border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.search-box:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(46,230,197,.14);
}
.search-box i{color:var(--primary-2);font-size:15px}
.search-box input{
  flex:1;
  min-width:0;
  border:0;
  background:transparent;
  color:var(--text);
  font-size:15px;
  padding:10px 4px;
}
.search-box input::placeholder{color:var(--text-3)}
.search-box input:focus{outline:none}

.hero-meta{
  margin-top:26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  font-size:13px;
  color:var(--text-3);
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta i{color:var(--primary)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,#2EE6C5,#35C9E8);
  color:#04121A;
  font-weight:700;
  box-shadow:0 8px 28px -8px rgba(46,230,197,.55);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px -8px rgba(46,230,197,.75)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{
  background:transparent;
  border-color:rgba(76,141,255,.45);
  color:var(--text);
}
.btn-ghost:hover{background:rgba(46,230,197,.10);border-color:var(--line-primary);color:var(--primary);transform:translateY(-2px)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}

.text-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--primary-2);
  font-size:14px;
  font-weight:600;
}
.text-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-3px;
  height:1px;
  width:0;
  background:currentColor;
  transition:width .28s var(--ease);
}
.text-link:hover{color:var(--primary)}
.text-link:hover::after{width:100%}

/* ============ 快捷标签 ============ */
.pill-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:8px 16px;
  border-radius:999px;
  font-size:13.5px;
  color:var(--text-2);
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  transition:color .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease), transform .25s var(--ease);
}
.pill i{font-size:12px;color:var(--primary-2)}
.pill:hover{
  color:var(--primary);
  border-color:var(--line-primary);
  background:rgba(46,230,197,.09);
  transform:translateY(-2px);
}
.pill:active{transform:translateY(0)}

/* ============ 问题速查（编号竖线列表） ============ */
.quick-panel{
  margin-top:8px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.07);
  padding:10px 26px;
}
.quick-list{position:relative}
.quick-list::before{
  content:"";
  position:absolute;
  left:19px;
  top:22px;
  bottom:22px;
  width:1px;
  background:linear-gradient(180deg, rgba(46,230,197,.55), rgba(140,190,255,.14));
}
.quick-item{
  position:relative;
  display:grid;
  grid-template-columns:40px 1fr auto;
  align-items:center;
  gap:16px;
  padding:20px 4px;
  border-bottom:1px solid var(--line-2);
}
.quick-item:last-child{border-bottom:0}
.quick-num{
  position:relative;
  z-index:1;
  width:38px;
  height:38px;
  border-radius:50%;
  display:grid;
  place-items:center;
  background:var(--bg-2);
  border:1px solid rgba(46,230,197,.35);
  color:var(--primary);
  font-size:13px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.quick-body h3{font-size:16px;font-weight:600;line-height:1.5}
.quick-body p{margin-top:5px;font-size:13.5px;color:var(--text-3);line-height:1.7}
.quick-item .text-link{white-space:nowrap}

/* ============ FAQ ============ */
.faq-group{margin-bottom:34px}
.faq-group:last-child{margin-bottom:0}
.faq-group-title{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  font-weight:600;
  color:var(--primary-2);
  letter-spacing:.04em;
  margin-bottom:14px;
}
.faq-group-title::after{
  content:"";
  flex:1;
  height:1px;
  background:var(--line-2);
}

.faq-item{
  position:relative;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .28s var(--ease), transform .28s var(--ease), background .28s var(--ease);
}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:3px;
  background:var(--primary);
  opacity:0;
  transition:opacity .28s var(--ease);
}
.faq-item:hover{border-color:var(--line-primary);transform:translateY(-2px)}
.faq-item[open]{border-color:var(--line-primary);background:rgba(46,230,197,.045)}
.faq-item[open]::before{opacity:1}

.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:14px 22px;
  font-size:16px;
  font-weight:600;
  line-height:1.5;
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{
  flex:0 0 auto;
  font-size:13px;
  color:var(--primary-2);
  transition:transform .3s var(--ease), color .3s var(--ease);
}
.faq-item[open] summary i{transform:rotate(180deg);color:var(--primary)}
.faq-item summary:hover{color:var(--primary)}

.faq-answer{
  padding:0 22px 22px 22px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
  border-top:1px solid var(--line-2);
  padding-top:16px;
  margin:0 22px 22px;
}
.faq-answer strong{color:var(--text);font-weight:600}

/* ============ 核对图文区 ============ */
.check-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px;
  align-items:center;
}
.check-media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:var(--bg-2);
}
.check-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .35s var(--ease);
}
.check-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(6,10,22,.05) 40%, rgba(6,10,22,.78) 100%);
}
.check-media:hover img{transform:scale(1.04)}
.check-media figcaption{
  position:absolute;
  left:18px;
  bottom:16px;
  right:18px;
  z-index:2;
  font-size:13px;
  color:var(--text-2);
}
.check-media figcaption strong{display:block;font-size:15px;color:var(--text);margin-bottom:2px}

.check-list li{
  display:flex;
  gap:14px;
  padding:16px 0;
  border-bottom:1px solid var(--line-2);
}
.check-list li:last-child{border-bottom:0}
.check-list i{
  flex:0 0 auto;
  width:30px;
  height:30px;
  border-radius:10px;
  display:grid;
  place-items:center;
  font-size:13px;
  color:var(--primary);
  background:rgba(46,230,197,.10);
  border:1px solid rgba(46,230,197,.24);
}
.check-list h3{font-size:15.5px;font-weight:600;margin-bottom:4px}
.check-list p{font-size:14px;color:var(--text-3);line-height:1.7}

/* ============ 未解决引导 + 表单 ============ */
.unsolved{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:26px 28px;
  border-radius:var(--r-card);
  border:1px solid rgba(255,138,61,.34);
  background:linear-gradient(100deg, rgba(255,138,61,.09), rgba(255,255,255,.045));
  backdrop-filter:blur(14px);
  margin-bottom:32px;
}
.unsolved .u-text{display:flex;align-items:center;gap:14px;max-width:760px}
.unsolved .u-icon{
  flex:0 0 auto;
  width:42px;height:42px;
  border-radius:12px;
  display:grid;place-items:center;
  color:var(--accent);
  background:rgba(255,138,61,.12);
  border:1px solid rgba(255,138,61,.32);
}
.unsolved h3{font-size:16.5px;font-weight:600}
.unsolved p{font-size:14px;color:var(--text-2);margin-top:4px}

.form-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:32px;
  align-items:start;
}
.form-intro h3{font-size:22px;font-weight:700;line-height:1.35}
.form-intro p{margin-top:12px;color:var(--text-2);font-size:15px;line-height:1.8}
.form-points{margin-top:20px}
.form-points li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:var(--text-2);
  padding:9px 0;
}
.form-points i{color:var(--primary);font-size:13px;margin-top:5px}

.form-card{
  padding:26px 26px 24px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.07);
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13.5px;color:var(--text-2)}
.field label .req{color:var(--primary);margin-left:4px}
.field input,
.field select,
.field textarea{
  width:100%;
  padding:12px 14px;
  border-radius:var(--r-btn);
  background:rgba(255,255,255,.04);
  border:1px solid rgba(140,190,255,.18);
  color:var(--text);
  font-size:14.5px;
  transition:border-color .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease);
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7}
.field input::placeholder,
.field textarea::placeholder{color:var(--text-3)}
.field input:hover,
.field select:hover,
.field textarea:hover{border-color:rgba(140,190,255,.3)}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(46,230,197,.14);
  background:rgba(255,255,255,.06);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:2px}
.form-note{
  grid-column:1 / -1;
  font-size:12px;
  color:var(--text-3);
  line-height:1.7;
}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:72px;
  border-top:1px solid var(--line-2);
  background:linear-gradient(180deg, rgba(10,18,38,.55), rgba(6,10,22,.95));
  padding:56px 0 28px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:36px;height:36px;border-radius:11px;font-size:13px}
.footer-brand strong{font-size:15px;font-weight:700}
.footer-col p{font-size:14px;color:var(--text-2);line-height:1.8;max-width:340px}
.footer-col h3{
  font-size:14px;
  color:var(--primary);
  font-weight:600;
  margin-bottom:14px;
  letter-spacing:.03em;
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{
  font-size:14px;
  color:var(--text-2);
  transition:color .25s var(--ease);
}
.footer-col ul a:hover{color:#fff}
.footer-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid var(--line-2);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
}
.footer-bottom p{font-size:13px;color:var(--text-3);line-height:1.8}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;
  right:16px;
  bottom:16px;
  z-index:80;
  width:46px;
  height:46px;
  border-radius:50%;
  display:grid;
  place-items:center;
  color:var(--text-2);
  background:rgba(255,255,255,.07);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  opacity:0;
  visibility:hidden;
  transition:opacity .3s var(--ease), visibility .3s var(--ease), color .25s var(--ease), transform .25s var(--ease), border-color .25s var(--ease);
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{color:var(--primary);border-color:var(--line-primary);transform:translateY(-3px)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}

@media (max-width:1023px){
  .side-nav{
    transform:translateX(-102%);
    transition:transform .32s var(--ease);
    width:82%;
    max-width:320px;
    box-shadow:0 30px 80px -30px rgba(0,0,0,.85);
  }
  .side-nav.open{transform:translateX(0)}
  .mobile-top{display:flex}
  .app-main{margin-left:0;padding-top:24px}
  .hero{padding:40px 28px 34px}
  .quick-item{grid-template-columns:40px 1fr;gap:14px}
  .quick-item .text-link{grid-column:2;margin-top:2px}
  .check-grid{grid-template-columns:1fr;gap:24px}
}

@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .section{padding-top:56px}
  .hero{padding:32px 20px 28px;border-radius:18px}
  .hero-sub{font-size:15px}
  .search-box{flex-wrap:wrap;padding:12px}
  .search-box i{display:none}
  .search-box input{flex:1 1 100%;padding:8px 4px}
  .search-box .btn{width:100%}
  .quick-panel{padding:6px 18px}
  .quick-list::before{left:16px}
  .quick-num{width:34px;height:34px;font-size:12px}
  .faq-item summary{padding:14px 18px;font-size:15.5px}
  .faq-answer{margin:0 18px 18px;padding:14px 0 0;font-size:14.5px}
  .form-card{grid-template-columns:1fr;padding:22px 18px}
  .unsolved{padding:22px 20px}
  .unsolved .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
  .site-footer{padding-top:44px}
}

@media (max-width:520px){
  .hero h1{font-size:clamp(24px,7.4vw,30px)}
  .section-head h2{font-size:20px}
  .pill{padding:7px 13px;font-size:13px}
  .btn{width:100%}
  .quick-item .text-link{font-size:13.5px}
  .u-icon{display:none}
}