/* roulang page: index */
:root{
  --bg-0:#050A14;
  --bg-1:#0A1526;
  --bg-2:#0F1F35;
  --primary:#2BE0C8;
  --primary-dim:#17A894;
  --secondary:#8B7CFF;
  --accent:#FFC24B;
  --danger:#FF6B6B;
  --text-1:#EAF2FF;
  --text-2:#A9BBD4;
  --text-3:#6C7F99;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.05);
  --radius-card:16px;
  --radius-btn:10px;
  --radius-badge:999px;
  --radius-table:18px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset,0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-btn:0 0 0 1px rgba(43,224,200,.35),0 8px 24px -8px rgba(43,224,200,.55);
  --shadow-btn-hover:0 0 0 1px rgba(43,224,200,.5),0 0 32px -6px rgba(43,224,200,.7);
  --trans:180ms cubic-bezier(.2,.7,.3,1);
  --sec-gap:96px;
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:28px;color:var(--text-1);
  background:linear-gradient(145deg,var(--bg-1) 0%,var(--bg-0) 100%);
  background-attachment:fixed;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--trans);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,textarea,select{font:inherit;color:inherit;}
ul,ol{list-style:none;}
h1,h2,h3,h4{font-weight:600;letter-spacing:.01em;color:var(--text-1);}
h1{font-size:40px;line-height:48px;font-weight:700;}
h2{font-size:28px;line-height:38px;}
h3{font-size:20px;line-height:30px;}
p{color:var(--text-2);}
::selection{background:rgba(43,224,200,.28);color:#fff;}
.container{max-width:var(--container);margin:0 auto;padding:0 20px;width:100%;}
.num{font-variant-numeric:tabular-nums;}

/* ===== 顶栏导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  height:72px;
  background:linear-gradient(180deg,rgba(5,10,20,.75),rgba(5,10,20,.35));
  backdrop-filter:blur(10px) saturate(140%);
  -webkit-backdrop-filter:blur(10px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background var(--trans),border-color var(--trans),backdrop-filter var(--trans);
}
.site-header.is-scrolled{
  background:rgba(5,10,20,.86);
  border-bottom-color:var(--line);
  backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{position:relative;width:38px;height:38px;flex-shrink:0;}
.brand-name{font-size:17px;font-weight:600;letter-spacing:.02em;white-space:nowrap;}
.brand-name em{font-style:normal;color:var(--primary);}
.nav-menu{display:flex;align-items:center;gap:6px;}
.nav-menu > a{
  position:relative;
  padding:8px 14px;font-size:15px;color:var(--text-2);border-radius:8px;
}
.nav-menu > a:hover{color:var(--text-1);background:var(--glass);}
.nav-menu > a.is-active{color:var(--primary);}
.nav-menu > a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
  border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:500;white-space:nowrap;
  transition:all var(--trans);cursor:pointer;
  padding:0 20px;height:40px;
  border:1px solid transparent;
}
.btn-lg{height:48px;padding:0 26px;font-size:16px;}
.btn-sm{height:32px;padding:0 14px;font-size:13.5px;}
.btn-primary{
  background:linear-gradient(180deg,#37e6cf,#1fc4ae);
  color:#04231e;
  box-shadow:var(--shadow-btn);
}
.btn-primary:hover{
  background:linear-gradient(180deg,#46f0da,#27d0b8);
  box-shadow:var(--shadow-btn-hover);
  transform:translateY(-1px);
}
.btn-accent{
  background:linear-gradient(180deg,#ffd067,#f5a83a);
  color:#2a1c02;
  box-shadow:0 0 0 1px rgba(255,194,75,.45),0 10px 26px -10px rgba(255,194,75,.55);
}
.btn-accent:hover{
  background:linear-gradient(180deg,#ffdb84,#ffb848);
  box-shadow:0 0 0 1px rgba(255,194,75,.7),0 0 30px -6px rgba(255,194,75,.7);
  transform:translateY(-1px);
}
.btn-ghost{
  background:transparent;border-color:var(--line);color:var(--text-2);
}
.btn-ghost:hover{background:var(--glass);border-color:rgba(43,224,200,.4);color:var(--text-1);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-weight:500;font-size:14.5px;padding:4px 2px;
  border-radius:6px;
}
.btn-text svg{transition:transform var(--trans);}
.btn-text:hover svg{transform:translateX(4px);}
.btn:focus-visible,.btn-text:focus-visible,.nav-menu > a:focus-visible,.mega-trigger:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;
}
.btn.is-disabled{opacity:.45;pointer-events:none;box-shadow:none;}

/* Mega 面板 */
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 14px;font-size:15px;color:var(--text-2);border-radius:8px;
}
.mega-trigger:hover,.mega-trigger[aria-expanded="true"]{color:var(--text-1);background:var(--glass);}
.mega-trigger svg{transition:transform var(--trans);}
.mega-trigger[aria-expanded="true"] svg{transform:rotate(180deg);}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;
  width:640px;max-width:calc(100vw - 40px);
  background:rgba(10,21,38,.94);
  border:1px solid var(--line);
  border-radius:16px;
  padding:24px;
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px) saturate(150%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity 120ms ease,transform 120ms ease,visibility 120ms;
}
.mega-wrap:hover .mega-panel,.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-grid{display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:22px;}
.mega-col h4{font-size:12px;font-weight:500;letter-spacing:.12em;color:var(--text-3);margin-bottom:12px;}
.mega-col a{
  display:block;padding:7px 8px;border-radius:8px;font-size:14px;color:var(--text-2);
}
.mega-col a:hover{background:var(--glass);color:var(--primary);}
.mega-card{
  display:block;padding:14px;border-radius:12px;
  background:linear-gradient(160deg,rgba(43,224,200,.12),rgba(139,124,255,.1));
  border:1px solid rgba(43,224,200,.25);
}
.mega-card strong{display:block;font-size:14.5px;margin-bottom:4px;color:var(--text-1);}
.mega-card span{font-size:12.5px;color:var(--text-2);line-height:20px;}

/* 移动端抽屉 */
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  align-items:center;justify-content:center;border:1px solid var(--line);
}
.nav-toggle:hover{background:var(--glass);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:150;
  opacity:0;visibility:hidden;transition:opacity 200ms ease,visibility 200ms;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;z-index:160;
  background:linear-gradient(180deg,var(--bg-1),var(--bg-0));
  border-left:1px solid var(--line);
  padding:22px 20px 40px;overflow-y:auto;
  transform:translateX(100%);transition:transform 260ms cubic-bezier(.2,.7,.3,1);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;}
.drawer-nav a{
  display:block;padding:14px 12px;border-radius:10px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--primary);background:var(--glass);}
.drawer-group{margin-top:18px;}
.drawer-group h4{font-size:12px;letter-spacing:.12em;color:var(--text-3);margin-bottom:8px;padding:0 12px;}
.drawer-group a{display:block;padding:9px 12px;border-radius:8px;font-size:14px;color:var(--text-2);border:0;}
.drawer-group a:hover{color:var(--primary);background:var(--glass);}
.drawer .btn{width:100%;margin-top:22px;}

/* ===== Hero ===== */
.hero{
  position:relative;
  padding:150px 0 72px;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(43,224,200,.7),transparent);
}
.hero-ripple{
  position:absolute;right:-160px;top:40px;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,224,200,.14),transparent 62%);
  pointer-events:none;
}
.hero-ripple.b{right:auto;left:-220px;top:auto;bottom:-260px;background:radial-gradient(circle,rgba(139,124,255,.12),transparent 62%);}
.hero-grid{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;color:var(--primary);
  padding:7px 14px;border-radius:var(--radius-badge);
  border:1px solid rgba(43,224,200,.32);
  background:rgba(43,224,200,.07);
  margin-bottom:20px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px 2px rgba(43,224,200,.8);}
.hero h1{margin-bottom:18px;}
.hero h1 .hl{
  background:linear-gradient(120deg,var(--primary),var(--secondary));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;line-height:30px;color:var(--text-2);max-width:520px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;
  border:1px solid rgba(43,224,200,.28);
  box-shadow:0 0 0 1px rgba(43,224,200,.16),0 40px 80px -40px rgba(43,224,200,.5),var(--shadow-card);
}
.hero-visual::after{
  content:"";position:absolute;inset:auto 24px -18px 24px;height:36px;border-radius:50%;
  background:radial-gradient(ellipse,rgba(43,224,200,.35),transparent 70%);
  filter:blur(16px);z-index:-1;
}
.hero-float{
  position:absolute;left:-18px;bottom:28px;
  padding:14px 18px;border-radius:14px;
  background:rgba(10,21,38,.9);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.hero-float span{display:block;font-size:12px;color:var(--text-3);letter-spacing:.08em;}
.hero-float strong{font-size:22px;color:var(--primary);}
.stat-strip{
  display:grid;grid-template-columns:repeat(3,1fr);
  margin-top:56px;
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  overflow:hidden;
}
.stat-item{padding:24px 26px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:0;}
.stat-item strong{display:block;font-size:28px;line-height:36px;color:var(--primary);margin-bottom:4px;}
.stat-item span{font-size:13.5px;color:var(--text-3);}

/* ===== 通用板块 ===== */
.section{padding-bottom:var(--sec-gap);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.section-head .eyebrow{margin-bottom:12px;}
.section-head p{font-size:15px;max-width:640px;}
.grid-dots{
  width:54px;height:54px;flex-shrink:0;opacity:.18;
  display:grid;grid-template-columns:repeat(3,1fr);gap:6px;
}
.grid-dots i{width:6px;height:6px;border-radius:50%;background:var(--primary);}

/* ===== 权益对比 ===== */
.compare-wrap{
  overflow-x:auto;border-radius:var(--radius-table);
  border:1px solid var(--line);
  background:rgba(10,21,38,.55);
  box-shadow:var(--shadow-card);
  scrollbar-width:thin;
}
.compare-wrap::-webkit-scrollbar{height:8px;}
.compare-wrap::-webkit-scrollbar-thumb{background:rgba(43,224,200,.3);border-radius:8px;}
table.compare{width:100%;border-collapse:collapse;min-width:760px;}
table.compare th,table.compare td{
  padding:16px 18px;text-align:left;font-size:14.5px;
  border-bottom:1px solid var(--line);
}
table.compare thead th{
  position:sticky;top:0;z-index:3;
  background:rgba(15,31,53,.96);
  font-size:14px;font-weight:600;color:var(--text-1);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  white-space:nowrap;
}
table.compare tbody th{
  font-weight:500;color:var(--text-2);font-size:14.5px;
  position:sticky;left:0;z-index:2;
  background:rgba(10,21,38,.98);
  min-width:170px;
}
table.compare td{color:var(--text-2);text-align:center;}
table.compare thead th:first-child{text-align:left;left:0;z-index:4;}
table.compare col.is-active,table.compare th.is-active,table.compare td.is-active{
  background:rgba(255,194,75,.06);
}
table.compare th.is-active{position:relative;color:var(--accent);}
table.compare th.is-active::after{
  content:"推荐";position:absolute;top:8px;right:12px;
  font-size:11px;color:#2a1c02;background:var(--accent);
  padding:1px 8px;border-radius:var(--radius-badge);line-height:18px;
}
table.compare td .yes{color:var(--primary);font-weight:600;}
table.compare td .no{color:var(--text-3);}
.compare-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:18px;
}
.compare-foot p{font-size:13px;color:var(--text-3);}

/* ===== 等级亮点 ===== */
.level-grid{display:grid;grid-template-columns:1.35fr 1fr;grid-template-rows:auto auto;gap:24px;}
.level-card{
  position:relative;overflow:hidden;
  padding:28px;border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:transform var(--trans),border-color var(--trans);
}
.level-card:hover{transform:translateY(-2px);border-color:rgba(43,224,200,.4);}
.level-card.main{grid-row:span 2;display:flex;flex-direction:column;justify-content:space-between;
  background:linear-gradient(160deg,rgba(43,224,200,.1),rgba(139,124,255,.08) 55%,rgba(255,255,255,.02));}
.level-card .corner-dots{
  position:absolute;right:18px;top:18px;width:36px;height:36px;opacity:.18;
  display:grid;grid-template-columns:repeat(3,1fr);gap:4px;
}
.level-card .corner-dots i{width:4px;height:4px;border-radius:50%;background:var(--primary);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 12px;border-radius:var(--radius-badge);
  font-size:12.5px;font-weight:500;line-height:1;
}
.badge-cat{background:var(--glass);color:var(--primary);border:1px solid rgba(43,224,200,.28);}
.badge-level{background:rgba(255,194,75,.1);color:var(--accent);border:1px solid rgba(255,194,75,.42);}
.badge-lock{background:rgba(139,124,255,.12);color:var(--secondary);border:1px solid rgba(139,124,255,.38);}
.badge-solid{background:rgba(43,224,200,.14);color:var(--primary);}
.level-card h3{margin:16px 0 10px;}
.level-card p{font-size:14.5px;}
.level-card ul{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.level-card ul li{position:relative;padding-left:20px;font-size:14.5px;color:var(--text-2);}
.level-card ul li::before{
  content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(43,224,200,.6);
}
.progress{height:5px;border-radius:99px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:22px;}
.progress span{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--primary),var(--secondary));}
.level-card .progress-row{margin-top:22px;}
.level-card .progress-row small{display:block;font-size:12.5px;color:var(--text-3);margin-top:8px;}

/* ===== 专属内容 ===== */
.exclusive-scroll{
  display:flex;gap:20px;overflow-x:auto;padding-bottom:16px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;scrollbar-color:rgba(43,224,200,.35) transparent;
}
.exclusive-scroll::-webkit-scrollbar{height:6px;}
.exclusive-scroll::-webkit-scrollbar-track{background:rgba(255,255,255,.05);border-radius:8px;}
.exclusive-scroll::-webkit-scrollbar-thumb{background:linear-gradient(90deg,var(--primary),var(--secondary));border-radius:8px;}
.ex-card{
  flex:0 0 calc((100% - 60px) / 3.5);
  min-width:270px;
  scroll-snap-align:start;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--glass);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform var(--trans),border-color var(--trans);
}
.ex-card:hover{transform:translateY(-2px);border-color:rgba(43,224,200,.4);}
.ex-cover{position:relative;aspect-ratio:16/10;overflow:hidden;}
.ex-cover img{width:100%;height:100%;object-fit:cover;transition:transform 420ms ease;}
.ex-card:hover .ex-cover img{transform:scale(1.04);}
.ex-lock{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  background:linear-gradient(180deg,rgba(5,10,20,.35),rgba(5,10,20,.82));
  backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px);
}
.ex-lock span{font-size:12.5px;color:var(--secondary);}
.ex-body{padding:18px 20px 22px;}
.ex-body h3{font-size:16.5px;line-height:26px;margin:12px 0 8px;}
.ex-body p{font-size:13.5px;color:var(--text-3);}

/* ===== CMS 最新信息 ===== */
.cms-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:start;}
.cms-feature{
  display:flex;flex-direction:column;
  border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);background:var(--glass);
  box-shadow:var(--shadow-card);
  transition:transform var(--trans),border-color var(--trans);
}
.cms-feature:hover{transform:translateY(-2px);border-color:rgba(43,224,200,.4);}
.cms-feature .cover{aspect-ratio:16/9;overflow:hidden;}
.cms-feature .cover img{width:100%;height:100%;object-fit:cover;transition:transform 420ms ease;}
.cms-feature:hover .cover img{transform:scale(1.04);}
.cms-feature .body{padding:22px 24px 26px;}
.cms-feature h3{font-size:20px;line-height:30px;margin:14px 0 10px;}
.cms-feature p{font-size:14.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.meta-row{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-3);margin-top:16px;}
.meta-row .sep{width:3px;height:3px;border-radius:50%;background:var(--text-3);}
.cms-list{display:flex;flex-direction:column;gap:12px;}
.cms-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 18px;border-radius:12px;
  border:1px solid var(--line);background:var(--glass);
  transition:border-color var(--trans),background var(--trans),transform var(--trans);
}
.cms-row:hover{border-color:rgba(43,224,200,.4);background:rgba(255,255,255,.07);transform:translateY(-1px);}
.cms-row .left{min-width:0;}
.cms-row h3{
  font-size:15.5px;line-height:24px;margin-top:6px;font-weight:500;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-row time{font-size:12.5px;color:var(--text-3);white-space:nowrap;flex-shrink:0;}
.empty-state{
  padding:48px 24px;text-align:center;border-radius:var(--radius-card);
  border:1px dashed var(--line);background:rgba(255,255,255,.02);
  display:flex;flex-direction:column;align-items:center;gap:16px;
}
.empty-state p{font-size:14.5px;color:var(--text-3);}

/* ===== FAQ ===== */
.faq-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start;}
.faq-list{display:flex;flex-direction:column;gap:10px;}
.faq-item{
  border:1px solid var(--line);border-radius:14px;
  background:var(--glass);
  overflow:hidden;
  transition:border-color var(--trans),background var(--trans);
}
.faq-item.is-open{border-color:rgba(43,224,200,.4);background:rgba(43,224,200,.05);}
.faq-toggle{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:14px 20px;text-align:left;font-size:16px;font-weight:500;color:var(--text-1);
}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1px solid rgba(43,224,200,.4);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  transition:transform 260ms cubic-bezier(.2,.7,.3,1),background var(--trans);
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:rgba(43,224,200,.14);}
.faq-panel{
  max-height:0;overflow:hidden;
  transition:max-height 300ms cubic-bezier(.2,.7,.3,1);
}
.faq-panel .inner{padding:0 20px 20px;font-size:14.5px;color:var(--text-2);opacity:0;transition:opacity 160ms ease;}
.faq-item.is-open .faq-panel .inner{opacity:1;}

/* ===== CTA 带 ===== */
.cta-band{
  position:relative;overflow:hidden;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  padding:36px 40px;border-radius:20px;
  background:linear-gradient(120deg,rgba(43,224,200,.14),rgba(139,124,255,.12) 60%,rgba(255,194,75,.08));
  border:1px solid rgba(43,224,200,.28);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  margin-bottom:var(--sec-gap);
}
.cta-band h2{font-size:24px;line-height:34px;margin-bottom:8px;}
.cta-band p{font-size:14.5px;max-width:560px;}
.cta-band .actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.countdown{
  display:flex;gap:8px;align-items:center;margin-top:14px;
}
.countdown .cell{
  min-width:52px;padding:8px 10px;border-radius:10px;text-align:center;
  background:rgba(5,10,20,.6);border:1px solid var(--line);
}
.countdown .cell strong{display:block;font-size:18px;color:var(--accent);}
.countdown .cell span{font-size:11px;color:var(--text-3);letter-spacing:.08em;}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,21,38,.7),rgba(5,10,20,.95));
  padding:64px 0 28px;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(43,224,200,.75),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:44px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--text-3);max-width:320px;}
.footer-col h4{font-size:13px;letter-spacing:.1em;color:var(--text-1);margin-bottom:16px;font-weight:600;}
.footer-col a,.footer-col li{display:block;font-size:13.5px;color:var(--text-3);margin-bottom:10px;}
.footer-col a:hover{color:var(--primary);}
.footer-contact li{display:flex;align-items:center;gap:8px;color:var(--text-3);font-size:13.5px;margin-bottom:10px;}
.footer-contact svg{color:var(--primary);flex-shrink:0;}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:22px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .links{display:flex;gap:18px;}
.footer-bottom .links a:hover{color:var(--primary);}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .hero-grid{gap:40px;}
  .ex-card{flex:0 0 calc((100% - 40px) / 3);}
}
@media (max-width:1023px){
  :root{--sec-gap:72px;}
  .nav-menu,.mega-wrap{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:120px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero h1{font-size:34px;line-height:44px;}
  .hero-visual{order:-1;}
  .level-grid{grid-template-columns:1fr;}
  .level-card.main{grid-row:auto;}
  .faq-grid{grid-template-columns:1fr;gap:28px;}
  .cms-grid{grid-template-columns:1fr;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .ex-card{flex:0 0 calc((100% - 20px) / 2.2);}
}
@media (max-width:767px){
  :root{--sec-gap:64px;}
  .container{padding:0 16px;}
  h1{font-size:28px;line-height:36px;}
  h2{font-size:22px;line-height:32px;}
  h3{font-size:18px;line-height:28px;}
  .site-header,.nav-inner{height:60px;}
  .brand-name{font-size:15px;}
  .hero{padding:96px 0 48px;}
  .hero h1{font-size:28px;line-height:36px;}
  .hero-sub{font-size:15.5px;line-height:27px;}
  .hero-actions .btn{flex:1;min-width:140px;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);padding:20px 22px;}
  .stat-item:last-child{border-bottom:0;}
  .cta-band{padding:26px 22px;border-radius:16px;}
  .cta-band .actions{width:100%;}
  .cta-band .actions .btn{flex:1;}
  .ex-card{flex:0 0 82%;min-width:0;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  table.compare th,table.compare td{padding:13px 14px;font-size:13.5px;}
  .compare-wrap{border-radius:14px;}
}
@media (max-width:480px){
  body{font-size:15px;}
  .hero h1{font-size:26px;line-height:34px;}
  .btn-lg{height:46px;padding:0 20px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .grid-dots{display:none;}
  .level-card,.ex-body,.cms-feature .body{padding:20px;}
  .countdown .cell{min-width:46px;}
}

/* roulang page: article */
:root{
  --bg-0:#050A14;
  --bg-1:#0A1526;
  --bg-2:#0F1F35;
  --primary:#2BE0C8;
  --primary-dim:#17A894;
  --secondary:#8B7CFF;
  --accent:#FFC24B;
  --danger:#FF6B6B;
  --text-1:#EAF2FF;
  --text-2:#A9BBD4;
  --text-3:#6C7F99;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.05);
  --r-card:16px;
  --r-btn:10px;
  --r-pill:999px;
  --r-table:18px;
  --shadow:0 1px 0 rgba(255,255,255,.04) inset, 0 18px 40px -24px rgba(0,0,0,.9);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:linear-gradient(145deg,var(--bg-1) 0%,var(--bg-0) 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color 180ms var(--ease),border-color 180ms var(--ease),background-color 180ms var(--ease)}
a:hover{color:var(--primary)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}

.container{max-width:var(--container);margin:0 auto;padding:0 20px;width:100%}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(10,21,38,.62);
  backdrop-filter:blur(10px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background-color 200ms var(--ease),border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.site-header::before{
  content:"";
  position:absolute;left:0;top:0;height:1px;width:100%;
  background:linear-gradient(90deg,rgba(43,224,200,0),rgba(43,224,200,.7),rgba(139,124,255,.6),rgba(43,224,200,0));
  opacity:.55;
}
.site-header.is-scrolled{
  background:rgba(8,17,32,.88);
  backdrop-filter:blur(16px) saturate(150%);
  border-bottom-color:var(--line);
  box-shadow:0 12px 32px -24px rgba(0,0,0,.95);
}
.nav-inner{
  height:72px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{display:inline-flex;filter:drop-shadow(0 6px 16px rgba(43,224,200,.25))}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--text-1);white-space:nowrap}
.brand-name em{font-style:normal;color:var(--primary)}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:12px}
.nav-menu a{
  position:relative;
  padding:8px 14px;
  border-radius:10px;
  font-size:15px;
  color:var(--text-2);
}
.nav-menu a:hover{color:var(--text-1);background:var(--glass)}
.nav-menu a.is-active{color:var(--primary)}
.nav-menu a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(43,224,200,.25));
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  font-weight:600;
  white-space:nowrap;
  transition:transform 180ms var(--ease),background-color 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease),color 180ms var(--ease);
}
.btn-lg{height:48px;padding:0 24px;font-size:16px}
.btn-md{height:40px;padding:0 20px;font-size:15px}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-primary{
  background:var(--primary);
  color:#04231F;
  box-shadow:0 0 0 1px rgba(43,224,200,.35),0 8px 24px -8px rgba(43,224,200,.55);
}
.btn-primary:hover{
  background:#3FEBD5;
  color:#04231F;
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(43,224,200,.5),0 0 32px -6px rgba(43,224,200,.75);
}
.btn-accent{
  background:linear-gradient(180deg,#FFD171,#FFC24B);
  color:#2B1A00;
  box-shadow:0 0 0 1px rgba(255,194,75,.35),0 8px 22px -10px rgba(255,194,75,.7);
}
.btn-accent:hover{
  background:linear-gradient(180deg,#FFDA8B,#FFC95C);
  color:#2B1A00;
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(255,194,75,.55),0 0 30px -8px rgba(255,194,75,.85);
}
.btn-ghost{
  border:1px solid var(--line);
  color:var(--text-1);
  background:transparent;
}
.btn-ghost:hover{background:var(--glass);border-color:rgba(43,224,200,.45);color:var(--text-1)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-weight:600;font-size:15px;
}
.btn-link svg{transition:transform 180ms var(--ease)}
.btn-link:hover svg{transform:translateX(4px)}

/* mega */
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  height:38px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid var(--line);
  color:var(--text-2);font-size:14px;
}
.mega-trigger:hover{background:var(--glass);color:var(--text-1)}
.mega-trigger svg{transition:transform 180ms var(--ease)}
.mega-trigger[aria-expanded="true"]{color:var(--primary);border-color:rgba(43,224,200,.4)}
.mega-trigger[aria-expanded="true"] svg{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);
  width:640px;
  padding:22px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:rgba(13,26,46,.92);
  backdrop-filter:blur(18px) saturate(150%);
  box-shadow:var(--shadow);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity 160ms var(--ease),transform 160ms var(--ease),visibility 160ms;
}
.mega-panel.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.mega-col h4{
  font-size:12px;font-weight:600;letter-spacing:.12em;
  color:var(--primary);margin-bottom:12px;
}
.mega-col a{display:block;font-size:14px;color:var(--text-2);padding:6px 0}
.mega-col a:hover{color:var(--primary)}
.mega-card{
  display:block;padding:12px;border-radius:12px;
  border:1px solid var(--line);background:var(--glass);
}
.mega-card strong{display:block;font-size:14px;color:var(--text-1);margin-bottom:4px}
.mega-card span{font-size:12px;color:var(--text-3)}

.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);
  align-items:center;justify-content:center;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1)}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text-1);
  transition:transform 180ms var(--ease)
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;z-index:120;
  background:rgba(9,19,36,.97);
  border-left:1px solid var(--line);
  padding:24px;
  transform:translateX(102%);
  transition:transform 240ms var(--ease);
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.nav-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.nav-drawer .drawer-head span{font-size:13px;letter-spacing:.12em;color:var(--primary)}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);color:var(--text-2)}
.nav-drawer a{display:block;padding:12px 0;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line)}
.nav-drawer a:hover,.nav-drawer a.is-active{color:var(--primary)}
.drawer-group-title{font-size:12px;letter-spacing:.12em;color:var(--text-3);margin:20px 0 6px}
.nav-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:110;
  opacity:0;visibility:hidden;transition:opacity 200ms var(--ease),visibility 200ms;
}
.nav-overlay.is-open{opacity:1;visibility:visible}

/* ---------- article layout ---------- */
.page{padding:36px 0 0}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:26px;
}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:rgba(255,255,255,.2)}
.crumb .current{color:var(--text-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-head{max-width:860px;margin-bottom:26px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.badge-cat{border:1px solid rgba(43,224,200,.35);background:var(--glass);color:var(--primary)}
.badge-level{border:1px solid rgba(255,194,75,.45);color:var(--accent)}
.badge-lock{border:1px solid rgba(139,124,255,.45);color:var(--secondary)}
.article-head h1{
  font-size:30px;line-height:1.42;font-weight:700;letter-spacing:.01em;
  margin:16px 0 14px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-size:13px;color:var(--text-3);
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:rgba(255,255,255,.2)}

.cover{
  position:relative;
  width:100%;
  aspect-ratio:16/9;
  border-radius:18px;
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-2);
  box-shadow:var(--shadow);
  margin-bottom:32px;
}
.cover img{width:100%;height:100%;object-fit:cover}
.cover-fallback{
  position:absolute;inset:0;
  display:grid;place-items:center;
  background:
    radial-gradient(rgba(43,224,200,.18) 1.6px,transparent 1.6px) 0 0/22px 22px,
    linear-gradient(145deg,var(--bg-2),var(--bg-1));
}
.cover-fallback svg{opacity:.4}

.grid-main{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:40px;
  align-items:start;
  padding-bottom:64px;
}

.article-body{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:40px 40px 44px;
  max-width:760px;
  width:100%;
}
.article-body p{font-size:16px;line-height:1.9;color:var(--text-2);margin-bottom:20px}
.article-body h2{
  position:relative;
  font-size:22px;line-height:1.5;font-weight:600;color:var(--text-1);
  margin:38px 0 16px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--primary-dim));
}
.article-body h3{font-size:18px;line-height:1.6;font-weight:600;color:var(--text-1);margin:28px 0 12px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:0}
.article-body li{
  position:relative;padding-left:20px;margin-bottom:10px;
  font-size:15.5px;line-height:1.85;color:var(--text-2);
}
.article-body li::before{
  content:"";position:absolute;left:2px;top:12px;width:7px;height:7px;border-radius:2px;
  background:rgba(43,224,200,.75);
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;
  border-left:2px solid var(--accent);
  border-radius:0 12px 12px 0;
  background:var(--glass);
  backdrop-filter:blur(10px);
  color:var(--text-2);
}
.article-body img{
  width:100%;height:auto;border-radius:12px;border:1px solid var(--line);margin:22px 0;
}
.article-body strong{color:var(--text-1)}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(43,224,200,.35)}
.article-body table{width:100%;border-collapse:collapse;display:block;overflow-x:auto;margin:24px 0}
.article-body th,.article-body td{
  border:1px solid var(--line);padding:11px 14px;font-size:14.5px;text-align:left;white-space:nowrap;
}
.article-body th{background:var(--bg-2);color:var(--text-1)}
.article-body td{color:var(--text-2)}
.article-body code{
  background:var(--bg-2);padding:2px 7px;border-radius:6px;font-size:14px;color:var(--primary);
}

.empty-box{
  text-align:center;padding:64px 24px;
  border:1px dashed var(--line);border-radius:var(--r-card);
  background:var(--glass);
}
.empty-box h2{font-size:20px;margin-bottom:10px;color:var(--text-1)}
.empty-box p{color:var(--text-2);margin-bottom:20px}

.toc{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--glass);backdrop-filter:blur(14px) saturate(140%);
  padding:18px 20px;margin-bottom:24px;
}
.toc h4{font-size:12px;letter-spacing:.12em;color:var(--primary);margin-bottom:10px}
.toc ol{counter-reset:toc}
.toc li{margin-bottom:6px}
.toc a{font-size:14px;color:var(--text-2);display:block;padding:4px 0;border-left:2px solid transparent;padding-left:10px}
.toc a:hover{color:var(--primary);border-left-color:var(--primary)}

.sidebar{display:flex;flex-direction:column;gap:24px;position:sticky;top:96px}
.side-card{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--glass);backdrop-filter:blur(14px) saturate(140%);
  padding:22px;box-shadow:var(--shadow);
}
.side-card h3{
  font-size:13px;letter-spacing:.12em;color:var(--primary);
  margin-bottom:16px;font-weight:600;
}
.side-list li{margin-bottom:8px}
.side-list a{
  display:block;padding:10px 12px;border-radius:10px;
  font-size:14px;color:var(--text-2);border:1px solid transparent;
}
.side-list a:hover{background:rgba(255,255,255,.04);border-color:rgba(43,224,200,.35);color:var(--text-1)}
.side-post{display:flex;gap:10px;padding:9px 0;border-bottom:1px solid var(--line)}
.side-post:last-child{border-bottom:0}
.side-post .idx{
  flex-shrink:0;width:22px;height:22px;border-radius:6px;
  display:grid;place-items:center;font-size:12px;
  background:rgba(43,224,200,.12);color:var(--primary);
}
.side-post p{font-size:14px;line-height:1.6;color:var(--text-2)}
.side-post span{display:block;font-size:12px;color:var(--text-3);margin-top:3px}
.side-post:hover p{color:var(--primary)}

/* tags / back / related */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);border:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);
}
.back-bar{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 0}

.related{margin-top:56px}
.related-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:20px}
.related-head h2{font-size:20px;font-weight:600;color:var(--text-1)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--glass);backdrop-filter:blur(14px) saturate(140%);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform 200ms var(--ease),border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:rgba(43,224,200,.4)}
.card-cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-2)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.card:hover .card-cover img{transform:scale(1.04)}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{
  font-size:16px;line-height:1.55;font-weight:600;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card:hover .card-body h3{color:var(--primary)}
.card-body p{
  font-size:13.5px;line-height:1.7;color:var(--text-3);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{margin-top:auto;font-size:12.5px;color:var(--text-3);display:flex;align-items:center;gap:8px}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:rgba(255,255,255,.22)}

.cta-strip{
  margin:0 0 72px;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--glass);backdrop-filter:blur(14px) saturate(140%);
  padding:34px 32px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  box-shadow:var(--shadow);
}
.cta-strip h2{font-size:22px;font-weight:600;color:var(--text-1);margin-bottom:8px}
.cta-strip p{font-size:14px;color:var(--text-3)}

/* footer */
.site-footer{
  position:relative;
  border-top:1px solid var(--line);
  background:rgba(6,13,25,.72);
  padding:56px 0 28px;
}
.site-footer::before{
  content:"";position:absolute;left:0;top:-1px;height:1px;width:100%;
  background:linear-gradient(90deg,rgba(43,224,200,0),rgba(43,224,200,.75),rgba(139,124,255,.55),rgba(43,224,200,0));
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand p{font-size:13.5px;line-height:1.8;color:var(--text-3);margin-top:14px;max-width:320px}
.footer-col h4{font-size:12px;letter-spacing:.12em;color:var(--primary);margin-bottom:14px;font-weight:600}
.footer-col a{display:block;font-size:14px;color:var(--text-2);padding:6px 0}
.footer-col a:hover{color:var(--primary)}
.footer-contact li{display:flex;gap:9px;align-items:flex-start;font-size:13.5px;color:var(--text-3);padding:6px 0}
.footer-contact svg{flex-shrink:0;margin-top:4px;color:var(--primary-dim)}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;color:var(--text-3);
}

/* responsive */
@media (max-width:1279px){
  .grid-main{grid-template-columns:minmax(0,1fr) 290px;gap:30px}
  .article-body{padding:32px 30px 36px}
}
@media (max-width:1023px){
  .nav-menu{display:none}
  .mega-wrap{display:none}
  .nav-toggle{display:inline-flex}
  .grid-main{grid-template-columns:minmax(0,1fr)}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap}
  .side-card{flex:1 1 280px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px}
}
@media (max-width:767px){
  .nav-inner{height:60px;gap:14px}
  .brand-name{font-size:15px}
  .page{padding:24px 0 0}
  .article-head h1{font-size:24px}
  .article-body{padding:24px 20px 28px;border-radius:14px}
  .article-body h2{font-size:19px;margin-top:30px}
  .article-body p{font-size:15.5px}
  .cta-strip{padding:24px 20px;margin-bottom:52px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .article-head h1{font-size:21px;line-height:1.45}
  .related-grid{grid-template-columns:1fr}
  .sidebar{flex-direction:column}
  .footer-grid{grid-template-columns:1fr}
  .btn-lg{height:44px;padding:0 18px;font-size:15px}
}

/* roulang page: category1 */
:root{
  --bg-0:#050A14;
  --bg-1:#0A1526;
  --bg-2:#0F1F35;
  --primary:#2BE0C8;
  --primary-dim:#17A894;
  --secondary:#8B7CFF;
  --accent:#FFC24B;
  --danger:#FF6B6B;
  --text-1:#EAF2FF;
  --text-2:#A9BBD4;
  --text-3:#6C7F99;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(43,224,200,.4);
  --glass:rgba(255,255,255,.05);
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --radius-table:18px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset,0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-btn:0 0 0 1px rgba(43,224,200,.35),0 8px 24px -8px rgba(43,224,200,.55);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:linear-gradient(145deg,var(--bg-1),var(--bg-0)) fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1{font-size:clamp(28px,4vw,40px);line-height:1.2;font-weight:700;letter-spacing:.005em}
h2{font-size:clamp(22px,2.6vw,28px);line-height:1.35;font-weight:600}
h3{font-size:20px;line-height:1.5;font-weight:600}
em{font-style:normal}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
::selection{background:rgba(43,224,200,.28)}

::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-0)}
::-webkit-scrollbar-thumb{background:rgba(43,224,200,.28);border-radius:99px;border:2px solid var(--bg-0)}
::-webkit-scrollbar-thumb:hover{background:rgba(43,224,200,.5)}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:96px 0;position:relative}
.section-tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{font-size:12px;line-height:18px;letter-spacing:.12em;color:var(--primary);margin-bottom:14px;font-weight:600}
.section-head p{color:var(--text-2);margin-top:14px;font-size:15px;line-height:1.85}
.num{font-variant-numeric:tabular-nums}

.dot-grid{
  width:66px;height:66px;
  background-image:radial-gradient(circle,rgba(43,224,200,.6) 1.6px,transparent 1.9px);
  background-size:22px 22px;
  opacity:.35;
  pointer-events:none;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn-primary{
  background:linear-gradient(180deg,rgba(43,224,200,.96),rgba(23,168,148,.96));
  color:#04161a;
  box-shadow:var(--shadow-btn);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(43,224,200,.5),0 0 32px -6px rgba(43,224,200,.7)}
.btn-accent{
  background:linear-gradient(180deg,#FFD67F,#FFB81F);
  color:#2A1A00;
  box-shadow:0 0 0 1px rgba(255,194,75,.4),0 8px 24px -10px rgba(255,194,75,.55);
}
.btn-accent:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(255,194,75,.55),0 0 28px -8px rgba(255,194,75,.6)}
.btn-ghost{
  border:1px solid var(--line);
  background:transparent;
  color:var(--text-1);
}
.btn-ghost:hover{background:var(--glass);border-color:var(--line-strong);color:var(--primary);transform:translateY(-1px)}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn:disabled,.btn.is-disabled{opacity:.45;box-shadow:none;transform:none;cursor:not-allowed}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.btn-text svg{transition:transform .18s var(--ease)}
.btn-text:hover svg{transform:translateX(4px)}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;
  border-radius:var(--radius-pill);font-size:12px;line-height:1;
  background:var(--glass);border:1px solid var(--line);color:var(--primary);
  white-space:nowrap;
}
.badge-accent{color:var(--accent);border-color:rgba(255,194,75,.35);background:rgba(255,194,75,.08)}
.badge-purple{color:var(--secondary);border-color:rgba(139,124,255,.32);background:rgba(139,124,255,.08)}
.badge-plain{color:var(--text-2)}
.badge-row{display:flex;flex-wrap:wrap;gap:8px}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;height:72px;
  display:flex;align-items:center;
  background:rgba(10,21,38,.5);
  backdrop-filter:blur(10px) saturate(140%);
  -webkit-backdrop-filter:blur(10px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(5,10,20,.86);
  border-bottom-color:var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:inline-flex;flex:0 0 auto}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--text-1);white-space:nowrap}
.brand-name em{color:var(--primary)}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu a{
  position:relative;padding:10px 14px;border-radius:8px;
  font-size:15px;color:var(--text-2);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-menu a:hover{color:var(--text-1);background:var(--glass)}
.nav-menu a.is-active{color:var(--primary)}
.nav-menu a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
}
.nav-actions{display:flex;align-items:center;gap:12px}
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 15px;
  border-radius:var(--radius-btn);border:1px solid var(--line);
  background:var(--glass);color:var(--text-2);font-size:14px;font-weight:600;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.mega-trigger:hover{color:var(--primary);border-color:var(--line-strong)}
.mega-trigger[aria-expanded="true"]{color:var(--primary);border-color:var(--line-strong);background:rgba(43,224,200,.08)}
.mega-trigger svg{transition:transform .22s var(--ease)}
.mega-trigger[aria-expanded="true"] svg{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:640px;max-width:calc(100vw - 40px);
  padding:24px;border-radius:16px;border:1px solid var(--line);
  background:rgba(10,21,38,.94);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .16s var(--ease),transform .16s var(--ease),visibility .16s;
}
.mega-wrap:hover .mega-panel,
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.mega-col h4{
  font-size:12px;line-height:18px;letter-spacing:.12em;color:var(--primary);
  font-weight:600;margin-bottom:12px;
}
.mega-col a{display:block;padding:8px 0;font-size:14px;color:var(--text-2);transition:color .16s var(--ease),padding-left .16s var(--ease)}
.mega-col a:hover{color:var(--primary);padding-left:4px}
.mega-card{
  display:block;padding:14px;border-radius:14px;border:1px solid var(--line);
  background:rgba(15,31,53,.6);transition:border-color .18s var(--ease),transform .18s var(--ease);
}
.mega-card:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.mega-card img{width:100%;height:86px;object-fit:cover;border-radius:10px;margin-bottom:10px}
.mega-card strong{display:block;font-size:14px;color:var(--text-1);margin-bottom:4px}
.mega-card span{font-size:12px;color:var(--text-3)}

.nav-burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  align-items:center;justify-content:center;color:var(--text-1);background:var(--glass);
}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.4);opacity:0;visibility:hidden;
  transition:opacity .22s var(--ease),visibility .22s;z-index:90;
}
.drawer-mask.is-show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;z-index:95;
  background:linear-gradient(160deg,var(--bg-2),var(--bg-0));
  border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .26s var(--ease);
  padding:20px 20px 32px;overflow-y:auto;
}
.drawer.is-show{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--text-2);
}
.drawer-nav{display:grid;gap:4px;margin-bottom:22px}
.drawer-nav a{
  padding:13px 14px;border-radius:12px;font-size:15px;color:var(--text-2);
  border:1px solid transparent;transition:all .18s var(--ease);
}
.drawer-nav a:hover{background:var(--glass);color:var(--text-1)}
.drawer-nav a.is-active{color:var(--primary);border-color:var(--line-strong);background:rgba(43,224,200,.07)}
.drawer-group h5{font-size:12px;letter-spacing:.12em;color:var(--primary);margin:0 0 10px;font-weight:600}
.drawer-group a{display:block;padding:9px 0;font-size:14px;color:var(--text-2);border-bottom:1px solid var(--line)}

/* ============ 分类页横幅 ============ */
.page-banner{position:relative;padding:150px 0 64px;overflow:hidden;isolation:isolate}
.page-banner::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(43,224,200,.85),rgba(139,124,255,.6),transparent);
  z-index:3;
}
.banner-bg{
  position:absolute;inset:0;z-index:-2;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.3;
}
.banner-veil{
  position:absolute;inset:0;z-index:-1;
  background:linear-gradient(145deg,rgba(10,21,38,.62),rgba(5,10,20,.96) 70%);
}
.banner-inner{position:relative;max-width:820px}
.banner-inner h1{margin-bottom:18px}
.banner-lead{font-size:16px;line-height:1.9;color:var(--text-2);max-width:720px}
.point-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.banner-deco{position:absolute;right:40px;bottom:44px;z-index:1}

/* ============ 卡片栅格（双列） ============ */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.rcard{
  display:flex;gap:20px;padding:24px;
  border-radius:var(--radius-card);border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.rcard:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.rcard-media{
  flex:0 0 172px;height:126px;border-radius:12px;overflow:hidden;
  border:1px solid var(--line);background:var(--bg-2);
}
.rcard-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.rcard:hover .rcard-media img{transform:scale(1.04)}
.rcard-body{display:flex;flex-direction:column;gap:10px;min-width:0}
.rcard-body h3{font-size:18px;line-height:1.45}
.rcard-desc{font-size:14px;line-height:1.8;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rcard-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* ============ 需求对照列表 ============ */
.need-list{display:grid;gap:14px;margin-top:8px}
.need-item{
  display:grid;grid-template-columns:1.05fr auto 1.35fr;align-items:center;gap:22px;
  padding:20px 24px;border-radius:var(--radius-card);
  border:1px solid var(--line);background:rgba(15,31,53,.5);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.need-item:hover{border-color:var(--line-strong);background:rgba(15,31,53,.72)}
.need-item h3{font-size:17px}
.need-desc{font-size:14px;line-height:1.75;color:var(--text-2)}
.need-arrow{color:var(--text-3);display:flex;align-items:center}

/* ============ 等级路径 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  position:relative;padding:24px;border-radius:var(--radius-card);
  border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.step:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.step-num{font-size:13px;letter-spacing:.1em;color:var(--primary);font-weight:600;margin-bottom:12px;display:block}
.step h3{font-size:17px;margin-bottom:10px}
.step p{font-size:14px;line-height:1.8;color:var(--text-2)}
.step-bar{height:5px;border-radius:99px;background:rgba(255,255,255,.07);margin-top:18px;overflow:hidden}
.step-bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--primary),var(--secondary))}

/* ============ 图文说明区 ============ */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.split-media{
  border-radius:18px;overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-card);position:relative;
}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.split-body h2{margin-bottom:18px}
.split-body p{color:var(--text-2);font-size:15px;line-height:1.9;margin-bottom:16px}
.tick-list{display:grid;gap:12px;margin:22px 0 26px}
.tick-list li{display:flex;gap:12px;font-size:15px;color:var(--text-2);line-height:1.7}
.tick-list li::before{
  content:"";flex:0 0 8px;height:8px;margin-top:9px;border-radius:3px;
  background:var(--primary);box-shadow:0 0 12px -2px rgba(43,224,200,.7);
}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px}
.stat{
  padding:20px;border-radius:14px;border:1px solid var(--line);background:rgba(15,31,53,.55);
}
.stat b{display:block;font-size:26px;font-weight:700;color:var(--text-1);font-variant-numeric:tabular-nums;line-height:1.3}
.stat span{font-size:13px;color:var(--text-3)}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:56px;align-items:start}
.faq-aside p{color:var(--text-2);font-size:15px;line-height:1.85;margin-top:14px}
.faq-item{
  border:1px solid var(--line);border-radius:14px;background:var(--glass);
  margin-bottom:12px;overflow:hidden;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item:hover{border-color:rgba(43,224,200,.25)}
.faq-item.is-open{border-color:var(--line-strong);background:rgba(15,31,53,.65)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:14px 22px;text-align:left;
  font-size:16px;font-weight:600;color:var(--text-1);line-height:1.6;
}
.faq-icon{
  position:relative;flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line);
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
  transition:opacity .28s var(--ease);
}
.faq-icon::before{left:6px;right:6px;top:10px;height:2px}
.faq-icon::after{top:6px;bottom:6px;left:10px;width:2px}
.faq-item.is-open .faq-icon{transform:rotate(180deg);border-color:var(--line-strong)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2);
  opacity:0;transition:opacity .16s var(--ease)}
.faq-item.is-open .faq-a p{opacity:1}

/* ============ CTA 条 ============ */
.cta-band{
  margin:96px auto 0;padding:40px 44px;
  border-radius:var(--radius-table);border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(43,224,200,.1),rgba(139,124,255,.08));
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:8px}
.cta-band p{color:var(--text-2);font-size:14px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;margin-top:96px;padding:64px 0 32px;
  background:linear-gradient(180deg,rgba(10,21,38,.6),rgba(5,10,20,.95));
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(43,224,200,.7),rgba(139,124,255,.45),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--text-3);max-width:320px}
.footer-col h4{font-size:13px;letter-spacing:.1em;color:var(--text-1);margin-bottom:16px;font-weight:600}
.footer-col a{display:block;font-size:14px;color:var(--text-3);padding:6px 0;transition:color .16s var(--ease),transform .16s var(--ease)}
.footer-col a:hover{color:var(--primary);transform:translateX(3px)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--text-3);line-height:1.7;padding:6px 0}
.footer-contact svg{flex:0 0 15px;margin-top:5px;color:var(--primary)}
.copyright{font-size:13px;color:var(--text-3);margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}

/* ============ 响应式 ============ */
@media (max-width:1120px){
  .card-grid{gap:20px}
  .rcard-media{flex:0 0 148px;height:116px}
  .nav-menu a{padding:10px 11px;font-size:14px}
  .footer-grid{gap:28px}
}
@media (max-width:1024px){
  .section{padding:72px 0}
  .card-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:32px}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .need-item{grid-template-columns:1fr;gap:12px;align-items:start}
  .need-arrow{display:none}
}
@media (max-width:880px){
  .nav-menu{display:none}
  .mega-wrap{display:none}
  .nav-burger{display:flex}
  .site-header{height:60px}
  .page-banner{padding:112px 0 52px}
  .banner-deco{display:none}
  .cta-band{padding:32px 24px}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:64px 0}
  h1{font-size:28px;line-height:1.3}
  .rcard{flex-direction:column;gap:16px;padding:20px}
  .rcard-media{flex:none;width:100%;height:168px}
  .steps{grid-template-columns:1fr}
  .stat-row{grid-template-columns:1fr;gap:14px}
  .banner-actions .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{margin-top:64px;padding:48px 0 28px}
}
@media (max-width:480px){
  body{font-size:15px}
  h2{font-size:21px}
  .brand-name{font-size:15px}
  .rcard-media{height:150px}
  .cta-band h2{font-size:19px}
}

/* roulang page: category2 */
:root{
  --bg-0:#050A14;
  --bg-1:#0A1526;
  --bg-2:#0F1F35;
  --primary:#2BE0C8;
  --primary-dim:#17A894;
  --secondary:#8B7CFF;
  --accent:#FFC24B;
  --danger:#FF6B6B;
  --text-1:#EAF2FF;
  --text-2:#A9BBD4;
  --text-3:#6C7F99;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.05);
  --radius-card:16px;
  --radius-btn:10px;
  --radius-badge:999px;
  --radius-panel:18px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset, 0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-glow:0 0 0 1px rgba(43,224,200,.35), 0 8px 24px -8px rgba(43,224,200,.55);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:linear-gradient(145deg,var(--bg-1) 0%,var(--bg-0) 100%);
  background-attachment:fixed;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(43,224,200,.28);color:#fff;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--bg-0);}
::-webkit-scrollbar-thumb{background:rgba(43,224,200,.28);border-radius:999px;border:2px solid var(--bg-0);}
::-webkit-scrollbar-thumb:hover{background:rgba(43,224,200,.48);}

.container{max-width:var(--container);margin:0 auto;padding:0 20px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;line-height:18px;letter-spacing:.12em;
  color:var(--primary);font-weight:600;text-transform:none;
}
.eyebrow::before{
  content:"";width:22px;height:1px;background:var(--primary);opacity:.7;
}
.section-head{margin-bottom:40px;max-width:760px;}
.section-head h2{
  font-size:28px;line-height:38px;font-weight:600;margin-top:12px;letter-spacing:-.01em;
}
.section-head p{color:var(--text-2);margin-top:12px;font-size:15px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:all 180ms var(--ease);
  border:1px solid transparent;
  white-space:nowrap;
}
.btn-lg{height:48px;padding:0 26px;font-size:16px;}
.btn-sm{height:32px;padding:0 14px;font-size:13px;}
.btn-primary{
  background:var(--primary);color:#04231F;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{
  background:#44E8D2;transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(43,224,200,.45),0 0 32px -6px rgba(43,224,200,.7);
}
.btn-accent{
  background:var(--accent);color:#2A1B00;
  box-shadow:0 0 0 1px rgba(255,194,75,.4),0 8px 24px -10px rgba(255,194,75,.6);
}
.btn-accent:hover{
  background:#FFCE6B;transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(255,194,75,.5),0 0 30px -8px rgba(255,194,75,.8);
}
.btn-ghost{
  background:transparent;color:var(--text-1);border-color:var(--line-strong);
}
.btn-ghost:hover{background:var(--glass);border-color:rgba(43,224,200,.4);transform:translateY(-1px);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary);
  font-size:14px;font-weight:600;transition:color 180ms var(--ease);
}
.btn-text svg{transition:transform 180ms var(--ease);}
.btn-text:hover{color:#5BEDD9;}
.btn-text:hover svg{transform:translateX(4px);}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 12px;
  border-radius:var(--radius-badge);font-size:12px;line-height:1;font-weight:600;
  background:var(--glass);color:var(--primary);border:1px solid rgba(43,224,200,.24);
  white-space:nowrap;
}
.badge-level{color:var(--accent);border-color:rgba(255,194,75,.4);background:rgba(255,194,75,.08);}
.badge-lock{color:var(--secondary);border-color:rgba(139,124,255,.38);background:rgba(139,124,255,.1);}
.badge-plain{color:var(--text-2);border-color:var(--line);background:var(--glass);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,21,38,.42);
  backdrop-filter:blur(10px) saturate(140%);
  -webkit-backdrop-filter:blur(10px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background 180ms var(--ease),border-color 180ms var(--ease);
}
.site-header.is-scrolled{
  background:rgba(5,10,20,.86);
  border-bottom-color:var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{display:inline-flex;line-height:0;filter:drop-shadow(0 0 12px rgba(43,224,200,.28));}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--text-1);white-space:nowrap;}
.brand-name em{font-style:normal;color:var(--primary);}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:12px;}
.nav-menu a{
  position:relative;display:inline-flex;align-items:center;height:72px;padding:0 14px;
  font-size:15px;color:var(--text-2);font-weight:500;
  transition:color 180ms var(--ease);
}
.nav-menu a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:14px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(43,224,200,0));opacity:0;
  transition:opacity 180ms var(--ease);
}
.nav-menu a:hover{color:var(--text-1);}
.nav-menu a.is-active{color:var(--primary);}
.nav-menu a.is-active::after{opacity:1;}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}

.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 14px;
  border:1px solid var(--line-strong);border-radius:var(--radius-btn);
  font-size:14px;color:var(--text-2);font-weight:500;
  transition:all 180ms var(--ease);
}
.mega-trigger:hover{color:var(--text-1);background:var(--glass);border-color:rgba(43,224,200,.35);}
.mega-trigger svg{transition:transform 180ms var(--ease);}
.mega-wrap.is-open .mega-trigger{color:var(--primary);border-color:rgba(43,224,200,.45);}
.mega-wrap.is-open .mega-trigger svg{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:640px;
  background:rgba(15,31,53,.92);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line-strong);border-radius:var(--radius-card);
  box-shadow:0 1px 0 rgba(255,255,255,.04) inset,0 28px 60px -28px rgba(0,0,0,.95);
  padding:24px;opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity 140ms var(--ease),transform 140ms var(--ease),visibility 140ms;
  z-index:70;
}
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px;}
.mega-col h4{
  font-size:12px;line-height:18px;letter-spacing:.12em;color:var(--text-3);
  margin-bottom:12px;font-weight:600;
}
.mega-col a{
  display:block;font-size:14px;color:var(--text-2);padding:6px 0;
  transition:color 160ms var(--ease),padding-left 160ms var(--ease);
}
.mega-col a:hover{color:var(--primary);padding-left:4px;}
.mega-card{
  display:block;padding:16px;border-radius:14px;background:var(--glass);
  border:1px solid var(--line);transition:all 180ms var(--ease);
}
.mega-card:hover{border-color:rgba(43,224,200,.4);transform:translateY(-2px);}
.mega-card strong{display:block;font-size:14px;color:var(--text-1);margin-bottom:4px;}
.mega-card span{font-size:12px;color:var(--text-3);line-height:1.6;display:block;}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);
  align-items:center;justify-content:center;color:var(--text-1);
}
.nav-toggle:hover{background:var(--glass);}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:80;
  opacity:0;visibility:hidden;transition:opacity 180ms var(--ease),visibility 180ms;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:90;
  background:linear-gradient(160deg,var(--bg-2),var(--bg-0));
  border-left:1px solid var(--line-strong);
  transform:translateX(100%);transition:transform 220ms var(--ease);
  padding:24px 20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;
}
.drawer-nav a{
  display:block;padding:14px 12px;border-radius:12px;font-size:15px;color:var(--text-2);
  border:1px solid transparent;transition:all 160ms var(--ease);
}
.drawer-nav a:hover{background:var(--glass);color:var(--text-1);}
.drawer-nav a.is-active{color:var(--primary);border-color:rgba(43,224,200,.35);background:rgba(43,224,200,.07);}
.drawer-group{margin-top:24px;padding-top:20px;border-top:1px solid var(--line);}
.drawer-group h4{font-size:12px;letter-spacing:.12em;color:var(--text-3);margin-bottom:10px;font-weight:600;}
.drawer-group a{display:block;padding:8px 0;font-size:14px;color:var(--text-2);}
.drawer-group a:hover{color:var(--primary);}
.drawer .btn{width:100%;margin-top:24px;}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);
  padding-top:24px;flex-wrap:wrap;
}
.crumb a{color:var(--text-2);transition:color 160ms var(--ease);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--text-3);opacity:.6;}
.crumb .current{color:var(--text-2);}

/* ---------- 横幅 ---------- */
.banner{
  position:relative;overflow:hidden;margin-top:20px;
  border-radius:22px;border:1px solid var(--line-strong);
  background-image:linear-gradient(105deg,rgba(5,10,20,.94) 0%,rgba(5,10,20,.76) 46%,rgba(5,10,20,.5) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  box-shadow:var(--shadow-card);
}
.banner::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(43,224,200,0),var(--primary),rgba(139,124,255,0));
  opacity:.8;
}
.banner-inner{
  position:relative;z-index:2;padding:56px 48px;max-width:720px;
}
.banner h1{
  font-size:40px;line-height:48px;font-weight:700;letter-spacing:-.02em;margin-top:16px;
}
.banner p.lead{
  color:var(--text-2);font-size:16px;line-height:1.9;margin-top:18px;
}
.banner-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.banner-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.banner-deco{
  position:absolute;right:32px;bottom:24px;width:120px;height:120px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:10px;opacity:.18;
  pointer-events:none;
}
.banner-deco span{width:8px;height:8px;border-radius:50%;background:var(--primary);}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  margin-top:28px;
}
.stat{
  padding:20px 24px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.stat strong{
  display:block;font-size:26px;line-height:1.2;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;
}
.stat span{display:block;font-size:13px;color:var(--text-3);margin-top:6px;}

/* ---------- 卡片栅格 ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius-card);border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:transform 200ms var(--ease),border-color 200ms var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:rgba(43,224,200,.4);}
.card-media{
  position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,10,20,0) 40%,rgba(5,10,20,.7) 100%);
}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:20px;line-height:30px;font-weight:600;}
.card-body p{color:var(--text-2);font-size:14px;line-height:1.8;}
.card-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.card-foot{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--radius-badge);
  font-size:12px;color:var(--text-2);background:rgba(255,255,255,.04);border:1px solid var(--line);
}

/* ---------- 等级阶梯 ---------- */
.level-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.level-card{
  padding:24px;border-radius:var(--radius-card);border:1px solid var(--line);
  background:var(--bg-2);position:relative;overflow:hidden;
  transition:transform 200ms var(--ease),border-color 200ms var(--ease);
}
.level-card:hover{transform:translateY(-2px);border-color:rgba(43,224,200,.4);}
.level-card.is-featured{
  border-color:rgba(255,194,75,.45);
  box-shadow:0 0 0 1px rgba(255,194,75,.16),0 18px 40px -24px rgba(0,0,0,.9);
}
.level-card h3{font-size:18px;line-height:28px;font-weight:600;margin-top:14px;}
.level-card ul{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.level-card li{
  position:relative;padding-left:16px;font-size:14px;color:var(--text-2);line-height:1.75;
}
.level-card li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--primary);
}
.level-card.is-featured li::before{background:var(--accent);}
.bar{
  margin-top:20px;height:6px;border-radius:999px;background:rgba(255,255,255,.06);overflow:hidden;
}
.bar i{
  display:block;height:100%;border-radius:999px;
  background:linear-gradient(90deg,var(--primary-dim),var(--primary));
}
.level-card.is-featured .bar i{background:linear-gradient(90deg,rgba(255,194,75,.5),var(--accent));}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step;}
.step{
  padding:24px;border-radius:var(--radius-card);border:1px solid var(--line);
  background:var(--glass);position:relative;
  transition:transform 200ms var(--ease),border-color 200ms var(--ease);
}
.step:hover{transform:translateY(-2px);border-color:rgba(43,224,200,.4);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;font-size:14px;font-weight:700;
  color:var(--primary);background:rgba(43,224,200,.1);border:1px solid rgba(43,224,200,.28);
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;line-height:27px;font-weight:600;margin-top:16px;}
.step p{color:var(--text-2);font-size:14px;line-height:1.8;margin-top:8px;}

/* ---------- 图文区块 ---------- */
.feature{
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
  padding:40px;border-radius:var(--radius-panel);border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(15,31,53,.85),rgba(5,10,20,.85));
  box-shadow:var(--shadow-card);
}
.feature h2{font-size:28px;line-height:38px;font-weight:600;margin-top:12px;}
.feature p{color:var(--text-2);margin-top:16px;font-size:15px;}
.feature-list{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.feature-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);}
.feature-list svg{flex-shrink:0;margin-top:5px;}
.feature-media{
  border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line-strong);
  box-shadow:0 0 0 1px rgba(43,224,200,.14),0 28px 60px -32px rgba(0,0,0,.95);
}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}

/* ---------- 使用场景 ---------- */
.scene-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;}
.scene-main{
  padding:32px;border-radius:var(--radius-card);border:1px solid var(--line);
  background:var(--glass);display:flex;flex-direction:column;gap:16px;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.scene-main h3{font-size:22px;line-height:32px;font-weight:600;}
.scene-main p{color:var(--text-2);font-size:15px;}
.scene-side{display:grid;gap:24px;}
.scene-mini{
  padding:24px;border-radius:var(--radius-card);border:1px solid var(--line);
  background:var(--bg-2);transition:transform 200ms var(--ease),border-color 200ms var(--ease);
}
.scene-mini:hover{transform:translateY(-2px);border-color:rgba(43,224,200,.4);}
.scene-mini h3{font-size:17px;line-height:27px;font-weight:600;margin-top:12px;}
.scene-mini p{color:var(--text-2);font-size:14px;margin-top:8px;line-height:1.8;}
.dot-grid{
  display:grid;grid-template-columns:repeat(3,8px);gap:8px;opacity:.55;
}
.dot-grid span{width:8px;height:8px;border-radius:50%;background:var(--primary);}
.dot-grid span:nth-child(5){background:var(--secondary);}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border-radius:var(--radius-card);border:1px solid var(--line);
  background:var(--glass);overflow:hidden;
  transition:border-color 180ms var(--ease);
}
.faq-item.is-open{border-color:rgba(43,224,200,.38);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:12px 20px;text-align:left;
  font-size:16px;font-weight:600;color:var(--text-1);
}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(43,224,200,.35);color:var(--primary);
  transition:transform 180ms var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);}
.faq-a{
  max-height:0;overflow:hidden;opacity:0;
  transition:max-height 240ms var(--ease),opacity 160ms var(--ease);
}
.faq-item.is-open .faq-a{opacity:1;}
.faq-a p{padding:0 20px 20px;color:var(--text-2);font-size:15px;line-height:1.9;}

/* ---------- CTA ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  padding:40px 48px;border-radius:var(--radius-panel);
  border:1px solid var(--line-strong);
  background:linear-gradient(120deg,rgba(43,224,200,.1),rgba(15,31,53,.9) 45%,rgba(139,124,255,.1));
  box-shadow:var(--shadow-card);position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(43,224,200,0),var(--primary),rgba(139,124,255,0));
}
.cta-band h2{font-size:26px;line-height:36px;font-weight:600;}
.cta-band p{color:var(--text-2);margin-top:10px;font-size:15px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;border-top:1px solid transparent;
  background:linear-gradient(180deg,rgba(15,31,53,.6),rgba(5,10,20,.95));
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(43,224,200,0),var(--primary),rgba(139,124,255,0));
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 0 40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{color:var(--text-3);font-size:14px;line-height:1.9;max-width:320px;}
.footer-col h4{font-size:13px;letter-spacing:.08em;color:var(--text-1);margin-bottom:16px;font-weight:600;}
.footer-col a{display:block;font-size:14px;color:var(--text-3);padding:5px 0;transition:color 160ms var(--ease);}
.footer-col a:hover{color:var(--primary);}
.footer-contact{display:flex;flex-direction:column;gap:12px;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-3);line-height:1.7;}
.footer-contact svg{flex-shrink:0;margin-top:4px;color:var(--primary);}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 32px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .grid-2{gap:20px;}
  .level-strip{gap:20px;}
  .steps{gap:20px;}
}
@media (max-width:1023px){
  .nav-menu{display:none;}
  .mega-wrap{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-inner{height:64px;gap:16px;}
  .section{padding:72px 0;}
  .grid-2{grid-template-columns:1fr;}
  .level-strip{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .feature{grid-template-columns:1fr;gap:32px;padding:32px;}
  .scene-grid{grid-template-columns:1fr;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .mega-panel{display:none;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:64px 0;}
  .section.head{margin-bottom:28px;}
  .banner-inner{padding:36px 24px;}
  .banner h1{font-size:28px;line-height:36px;}
  .stats{grid-template-columns:1fr;gap:16px;}
  .banner-deco{display:none;}
  .cta-band{padding:28px 24px;}
  .cta-band h2{font-size:22px;line-height:32px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .nav-cta{display:none;}
}
@media (max-width:520px){
  .banner h1{font-size:25px;line-height:33px;}
  .section-head h2{font-size:23px;line-height:33px;}
  .feature h2{font-size:22px;line-height:32px;}
  .level-strip{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .card-body{padding:20px;}
  .card-body h3{font-size:18px;line-height:28px;}
  .btn-lg{height:46px;padding:0 20px;font-size:15px;}
  .banner-actions .btn{width:100%;}
}