/* roulang page: index */
:root{
  --bg:#080D18;
  --bg-alt:#0B1220;
  --bg-alt2:#0F182B;
  --glass:rgba(22,36,60,.55);
  --glass-line:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --primary:#33D6C8;
  --primary-dim:rgba(51,214,200,.14);
  --secondary:#6E5BFF;
  --secondary-dim:rgba(110,91,255,.18);
  --accent:#FF9A3C;
  --text:#E8EFFA;
  --text-2:#9FB0C9;
  --text-3:#6B7C96;
  --ok:#3ECF8E;
  --warn:#FFC53D;
  --err:#FF6B6B;
  --disabled:#46506B;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --r-badge:8px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(0,0,0,.45),0 0 0 1px rgba(51,214,200,.25);
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:radial-gradient(rgba(51,214,200,.06) 1px,transparent 1px);
  background-size:30px 30px;
  opacity:.75;
}
img{max-width:100%;display:block;border-radius:var(--r-sm);}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease);}
button,input{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.005em;}
p{margin:0;}
svg{display:block;}
::selection{background:rgba(51,214,200,.3);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

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

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(8,13,24,.72);
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease),border-color .28s var(--ease),backdrop-filter .28s var(--ease);
}
.site-header.is-stuck{
  background:rgba(11,18,32,.94);
  border-bottom-color:var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(150deg,rgba(51,214,200,.22),rgba(110,91,255,.22));
  border:1px solid rgba(51,214,200,.35);
  display:grid;place-items:center;
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.nav-channels{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;color:var(--text-2);border-radius:10px;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.active{color:var(--primary);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto;flex-shrink:0;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:42px;padding:0 16px;min-width:220px;
  background:rgba(15,24,43,.9);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(51,214,200,.12);}
.search-box input{
  flex:1;background:transparent;border:0;outline:none;font-size:14px;color:var(--text);
}
.search-box input::placeholder{color:var(--text-3);}
.search-box svg{flex-shrink:0;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--r-pill);border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-lg{padding:15px 32px;font-size:16px;}
.btn-primary{
  background:linear-gradient(96deg,var(--accent),var(--primary));
  color:#06131A;
  box-shadow:0 6px 18px rgba(255,154,60,.22);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 24px rgba(51,214,200,.35);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{
  background:transparent;border-color:var(--line-strong);color:var(--text);
}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(1px);}
.btn-text{
  display:inline-flex;align-items:center;height:42px;padding:0 10px;font-size:14px;color:var(--text-2);border-radius:10px;
}
.btn-text:hover{color:var(--primary);}
.menu-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:rgba(15,24,43,.9);border:1px solid var(--line);border-radius:12px;cursor:pointer;
}
.menu-toggle:hover{border-color:var(--primary);}

/* 抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;z-index:90;
  background:rgba(11,18,32,.98);
  border-left:1px solid var(--line-strong);
  transform:translateX(102%);
  transition:transform .3s var(--ease);
  padding:20px;display:flex;flex-direction:column;gap:18px;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,8,16,.65);z-index:80;opacity:0;pointer-events:none;
  transition:opacity .3s var(--ease);
}
.drawer-mask.open{opacity:1;pointer-events:auto;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-close{
  width:40px;height:40px;border-radius:10px;background:transparent;border:1px solid var(--line);
  font-size:20px;cursor:pointer;line-height:1;
}
.drawer-close:hover{border-color:var(--primary);color:var(--primary);}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  display:flex;align-items:center;height:48px;padding:0 14px;border-radius:12px;
  font-size:15px;color:var(--text-2);border:1px solid transparent;
}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--text);}
.drawer-nav a.active{color:var(--primary);border-color:rgba(51,214,200,.35);background:rgba(51,214,200,.08);font-weight:600;}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:46px;padding:0 14px;
  background:var(--bg-alt2);border:1px solid var(--line);border-radius:12px;
}
.drawer-search input{flex:1;background:transparent;border:0;outline:none;font-size:14px;}
.drawer-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(51,214,200,.12);}
.drawer-cta{margin-top:auto;width:100%;}

/* ===== 通用板块 ===== */
main{position:relative;z-index:1;}
.section{padding:96px 0;position:relative;}
.section--alt{background:var(--bg-alt);}
.section--alt2{background:var(--bg-alt2);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;
  color:var(--primary);text-transform:uppercase;margin-bottom:10px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);display:inline-block;}
.h2{font-size:clamp(22px,3vw,32px);font-weight:700;}
.lead{color:var(--text-2);font-size:15px;max-width:620px;margin-top:12px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);white-space:nowrap;}
.text-link:hover{color:var(--text);gap:10px;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;font-size:12px;border-radius:var(--r-badge);line-height:1.7;
  letter-spacing:.02em;
}
.badge--cat{background:var(--secondary-dim);color:#B9AEFF;}
.badge--time{background:rgba(255,154,60,.16);color:var(--accent);}
.badge--ok{background:rgba(62,207,142,.16);color:var(--ok);}
.badge--ghost{background:rgba(255,255,255,.06);color:var(--text-2);}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  padding:96px 0 88px;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.16;
}
.hero::after{
  content:"";position:absolute;width:620px;height:620px;right:-160px;top:-200px;
  background:radial-gradient(circle,rgba(110,91,255,.22),rgba(8,13,24,0) 66%);
  pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero h1{font-size:clamp(28px,4.6vw,48px);font-weight:800;line-height:1.18;}
.hero h1 span{
  background:linear-gradient(96deg,var(--primary),var(--secondary));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{color:var(--text-2);font-size:17px;margin-top:20px;max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:40px;margin-top:44px;}
.hero-stat b{display:block;font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--text);}
.hero-stat span{font-size:12px;color:var(--text-3);letter-spacing:.04em;}
.phone-frame{
  position:relative;width:320px;max-width:100%;aspect-ratio:9/16;margin-left:auto;
  border-radius:28px;overflow:hidden;border:1px solid rgba(255,255,255,.14);
  box-shadow:0 24px 60px rgba(0,0,0,.5);
  background:var(--bg-alt2);
}
.phone-frame img{width:100%;height:100%;object-fit:cover;border-radius:0;opacity:.92;}
.phone-play{
  position:absolute;left:50%;top:44%;transform:translate(-50%,-50%);
  width:64px;height:64px;border-radius:50%;
  background:rgba(8,13,24,.5);border:1px solid rgba(51,214,200,.5);
  display:grid;place-items:center;backdrop-filter:blur(6px);
  box-shadow:0 0 30px rgba(51,214,200,.28);
}
.phone-info{
  position:absolute;left:12px;right:12px;bottom:12px;
  background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-radius:var(--r-md);padding:12px 14px;
}
.phone-info h3{font-size:14px;font-weight:600;line-height:1.5;}
.phone-meta{display:flex;align-items:center;gap:10px;margin-top:8px;font-size:12px;color:var(--text-2);font-variant-numeric:tabular-nums;}

/* 内嵌跟条 */
.inline-bar{
  margin-top:28px;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-radius:var(--r-md);padding:16px 20px;
}
.inline-bar p{font-size:14px;color:var(--text-2);}
.inline-bar strong{color:var(--text);font-weight:600;}

/* ===== 横滑片段带 ===== */
.clip-track{
  display:flex;gap:20px;overflow-x:auto;padding:6px 24px 22px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;scrollbar-color:rgba(51,214,200,.35) transparent;
}
.clip-track::-webkit-scrollbar{height:6px;}
.clip-track::-webkit-scrollbar-thumb{background:rgba(51,214,200,.3);border-radius:99px;}
.clip-card{
  position:relative;flex:0 0 218px;scroll-snap-align:start;
  border-radius:var(--r-lg);overflow:hidden;
  background:var(--bg-alt2);border:1px solid var(--line);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.clip-card:hover{transform:translateY(-6px);border-color:rgba(51,214,200,.45);box-shadow:var(--shadow-hover);}
.clip-thumb{aspect-ratio:9/16;overflow:hidden;background:var(--bg-alt2);}
.clip-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s var(--ease);}
.clip-card:hover .clip-thumb img{transform:scale(1.05);}
.clip-body{padding:14px 14px 16px;}
.clip-body h3{font-size:14px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:42px;}
.clip-meta{display:flex;align-items:center;justify-content:space-between;margin-top:10px;font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.clip-tag{position:absolute;left:10px;top:10px;}
.clip-dur{position:absolute;right:10px;bottom:calc(100% - 100%);}
.clip-duration{
  position:absolute;right:10px;top:calc(100% - 116px);
}

/* ===== 清单 ===== */
.list-block{border-top:1px solid var(--line);}
.list-row{
  display:flex;align-items:center;gap:24px;
  padding:24px 8px;border-bottom:1px solid var(--line);
  position:relative;
  transition:transform .24s var(--ease),background .24s var(--ease);
}
.list-row::before{
  content:"";position:absolute;left:0;top:18%;bottom:18%;width:2px;border-radius:2px;
  background:var(--primary);opacity:0;transition:opacity .24s var(--ease);
}
.list-row:hover{transform:translateX(4px);background:rgba(255,255,255,.025);}
.list-row:hover::before{opacity:1;}
.list-num{
  font-size:34px;font-weight:800;line-height:1;min-width:64px;
  background:linear-gradient(140deg,var(--primary),var(--secondary));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.list-main{flex:1;min-width:0;}
.list-main h3{font-size:17px;font-weight:600;}
.list-main p{font-size:14px;color:var(--text-2);margin-top:6px;}
.list-thumb{flex:0 0 96px;width:96px;height:64px;overflow:hidden;border-radius:var(--r-sm);border:1px solid var(--line);}
.list-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.list-row .badge{flex-shrink:0;}

/* ===== 最新信息卡片 ===== */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;
  background:var(--bg-alt);
  border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.section--alt .news-card{background:var(--bg-alt2);}
.news-card:hover{transform:translateY(-4px);border-color:rgba(51,214,200,.4);box-shadow:var(--shadow-hover);}
.news-thumb{aspect-ratio:16/9;overflow:hidden;}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-body h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-excerpt{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  background:var(--bg-alt2);border:1px dashed var(--line-strong);border-radius:var(--r-md);
}
.empty-state svg{margin:0 auto 16px;}
.empty-state p{font-size:16px;color:var(--text);}
.empty-state span{display:block;font-size:13px;color:var(--text-3);margin-top:8px;}
.empty-state a{display:inline-flex;margin-top:18px;}

/* ===== 图文板块 A：左文右卡 ===== */
.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center;}
.split-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);}
.split-media img{width:100%;height:100%;object-fit:cover;border-radius:0;aspect-ratio:4/3;}
.feature-list{margin-top:28px;display:flex;flex-direction:column;gap:16px;}
.feature-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);}
.feature-list li svg{flex-shrink:0;margin-top:6px;}

/* ===== 图文板块 B：双卡错位 ===== */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
.duo-card{
  background:var(--bg-alt2);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.duo-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:rgba(110,91,255,.4);}
.duo-card:nth-child(2){margin-top:44px;}
.duo-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;}
.duo-body{padding:22px;}
.duo-body h3{font-size:19px;font-weight:600;}
.duo-body p{font-size:14px;color:var(--text-2);margin-top:10px;}

/* ===== 宽幅信息条 ===== */
.wide-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line);padding:48px;
}
.wide-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.22;
}
.wide-inner{position:relative;display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;}
.wide-steps{display:flex;gap:32px;margin-top:24px;flex-wrap:wrap;}
.wide-step{min-width:150px;}
.wide-step b{display:block;font-size:13px;color:var(--primary);letter-spacing:.06em;font-variant-numeric:tabular-nums;}
.wide-step span{display:block;font-size:15px;color:var(--text-2);margin-top:6px;}

/* ===== 口碑横滑 ===== */
.quote-track{display:flex;gap:20px;overflow-x:auto;padding:6px 24px 20px;scroll-snap-type:x mandatory;}
.quote-track::-webkit-scrollbar{height:6px;}
.quote-track::-webkit-scrollbar-thumb{background:rgba(110,91,255,.35);border-radius:99px;}
.quote-card{
  flex:0 0 320px;scroll-snap-align:start;
  background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-radius:var(--r-md);padding:22px;
}
.quote-head{display:flex;align-items:center;gap:12px;}
.avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(140deg,var(--primary),var(--secondary));opacity:.75;flex-shrink:0;}
.quote-head strong{font-size:14px;font-weight:600;display:block;}
.quote-head span{font-size:12px;color:var(--text-3);}
.quote-card p{font-size:14px;color:var(--text-2);margin-top:14px;}
.stars{display:flex;gap:3px;margin-top:14px;}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .24s var(--ease);
}
.section--alt .faq-item{background:var(--bg-alt2);}
.faq-item[open]{border-color:rgba(51,214,200,.4);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px 20px 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;
  background:var(--primary);opacity:0;transition:opacity .22s var(--ease);
}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary svg{flex-shrink:0;transition:transform .22s var(--ease);}
.faq-item[open] summary svg{transform:rotate(180deg);}
.faq-answer{padding:0 24px 22px 28px;font-size:15px;color:var(--text-2);}

/* ===== CTA ===== */
.cta{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line-strong);padding:64px 32px;text-align:center;
}
.cta::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.18;
}
.cta::after{
  content:"";position:absolute;left:50%;top:-120px;transform:translateX(-50%);
  width:560px;height:320px;background:radial-gradient(ellipse,rgba(51,214,200,.2),transparent 70%);
}
.cta-inner{position:relative;}
.cta h2{font-size:clamp(22px,3vw,30px);}
.cta p{color:var(--text-2);margin-top:14px;font-size:15px;}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:30px;}

/* ===== 移动吸底跟条 ===== */
.sticky-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(11,18,32,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid rgba(255,255,255,.14);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  align-items:center;justify-content:space-between;gap:12px;
  transition:transform .3s var(--ease);
}
.sticky-bar.hidden-bar{transform:translateY(110%);}
.sticky-bar p{font-size:13px;color:var(--text-2);line-height:1.5;}
.sticky-bar strong{display:block;color:var(--text);font-size:14px;}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;z-index:1;background:#060A13;
  border-top:1px solid rgba(255,255,255,.1);
  padding:64px 0 32px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13px;color:var(--text-3);line-height:1.9;max-width:320px;}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--text);}
.footer-col a{display:block;font-size:13px;color:var(--text-2);padding:5px 0;transition:transform .2s var(--ease),color .2s var(--ease);}
.footer-col a:hover{color:var(--primary);transform:translateX(2px);}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:12px;color:var(--text-3);
}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .hero-inner{gap:40px;}
  .phone-frame{width:300px;}
  .clip-card{flex:0 0 200px;}
}
@media (max-width:1024px){
  .container{max-width:1080px;}
  .section{padding:72px 0;}
  .hero{padding:72px 0 64px;}
  .nav-channels{display:none;}
  .search-box{min-width:160px;}
  .menu-toggle{display:inline-flex;}
  .hero-inner{grid-template-columns:1fr;gap:44px;}
  .phone-frame{width:300px;margin:0 auto;}
  .split{grid-template-columns:1fr;gap:32px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .list-thumb{display:none;}
  .wide-inner{grid-template-columns:1fr;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .hero{padding:56px 0 48px;}
  .search-box,.btn-text{display:none;}
  .nav-wrap{height:64px;gap:12px;}
  .brand-text{font-size:15px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .grid-3{grid-template-columns:1fr;}
  .duo{grid-template-columns:1fr;}
  .duo-card:nth-child(2){margin-top:0;}
  .clip-card{flex:0 0 68vw;}
  .quote-card{flex:0 0 78vw;}
  .inline-bar{flex-direction:column;align-items:flex-start;}
  .inline-bar .btn{width:100%;}
  .wide-band{padding:32px 24px;}
  .cta{padding:48px 22px;}
  .footer-grid{grid-template-columns:1fr;}
  .sticky-bar{display:flex;}
  .hero-stats{gap:24px;}
  .hero-stat b{font-size:22px;}
}
@media (max-width:520px){
  .hero h1{font-size:clamp(26px,7.4vw,32px);}
  .h2{font-size:clamp(20px,5.6vw,24px);}
  .list-num{font-size:26px;min-width:46px;}
  .btn{padding:11px 20px;font-size:14px;}
  .btn-lg{padding:13px 24px;font-size:15px;}
}

/* roulang page: article */
:root{
  --bg-0:#080D18;
  --bg-1:#0B1220;
  --bg-2:#0F182B;
  --glass:rgba(22,36,60,.55);
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --c1:#33D6C8;
  --c2:#6E5BFF;
  --c3:#FF9A3C;
  --t1:#E8EFFA;
  --t2:#9FB0C9;
  --t3:#6B7C96;
  --ok:#3ECF8E;
  --warn:#FFC53D;
  --err:#FF6B6B;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-1:0 8px 24px rgba(0,0,0,.35);
  --shadow-2:0 16px 40px rgba(0,0,0,.45);
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  --header-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t1);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--c1);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-family:Inter,var(--font)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(8,13,24,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.scrolled{
  background:rgba(8,13,24,.94);
  border-bottom-color:var(--line-strong);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.header-inner{display:flex;align-items:center;gap:24px;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(145deg,rgba(51,214,200,.18),rgba(110,91,255,.22));
  border:1px solid var(--line-strong);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand:hover .brand-text{color:var(--c1)}
.nav-channels{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;
  padding:8px 14px;
  font-size:15px;
  color:var(--t2);
  border-radius:999px;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--t1);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--c1)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:2px;
  border-radius:2px;background:linear-gradient(90deg,var(--c1),var(--c2));
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;min-width:220px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:999px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box:focus-within{
  border-color:var(--c1);
  box-shadow:0 0 0 3px rgba(51,214,200,.14);
  background:rgba(51,214,200,.05);
}
.search-box svg{flex:0 0 auto;color:var(--t3)}
.search-box input{
  width:100%;background:transparent;border:0;outline:none;
  color:var(--t1);font-size:14px;
}
.search-box input::placeholder{color:var(--t3)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;
  padding:11px 24px;border-radius:999px;
  transition:transform .18s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  color:#04211F;
  background:linear-gradient(120deg,var(--c1),var(--c2));
  box-shadow:0 6px 18px rgba(51,214,200,.22);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 0 24px rgba(51,214,200,.35),0 10px 26px rgba(0,0,0,.4);
  filter:brightness(1.08);
}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  color:var(--t2);padding:11px 16px;font-weight:500;
}
.btn-ghost:hover{color:var(--c1)}
.btn-outline{
  color:var(--t1);
  border:1px solid var(--line-strong);
  background:transparent;
}
.btn-outline:hover{
  color:var(--c1);border-color:var(--c1);
  box-shadow:0 0 0 3px rgba(51,214,200,.12);
  transform:translateY(-2px);
}
.btn-sm{padding:9px 18px;font-size:14px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);align-items:center;justify-content:center;
  color:var(--t1);background:rgba(255,255,255,.03);
}
.nav-toggle:hover{border-color:var(--c1);color:var(--c1)}
.mobile-drawer{
  position:fixed;inset:0 0 0 auto;width:min(320px,84vw);z-index:120;
  background:rgba(11,18,32,.98);
  border-left:1px solid var(--line-strong);
  backdrop-filter:blur(18px);
  transform:translateX(102%);
  transition:transform .3s ease;
  display:flex;flex-direction:column;
  padding:22px 20px;
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;color:var(--t2)}
.drawer-close:hover{color:var(--c1);border-color:var(--c1)}
.drawer-links{display:flex;flex-direction:column;gap:6px}
.drawer-links a{
  padding:13px 14px;border-radius:12px;color:var(--t2);font-size:15px;
  border:1px solid transparent;
}
.drawer-links a:hover{color:var(--t1);background:rgba(255,255,255,.05)}
.drawer-links a.active{color:var(--c1);border-color:rgba(51,214,200,.35);background:rgba(51,214,200,.08)}
.drawer-foot{margin-top:auto;display:grid;gap:10px}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:42px;padding:0 14px;
  border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.04);
}
.drawer-search input{flex:1;background:transparent;border:0;outline:none;color:var(--t1);font-size:14px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,8,16,.62);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.open{opacity:1;visibility:visible}

/* ============ 内页横幅 ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:56px 0 40px;
  background:
    linear-gradient(180deg,rgba(8,13,24,.4),var(--bg-0) 88%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-160px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(51,214,200,.16),transparent 66%);
  pointer-events:none;
}
.breadcrumb{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--t3);letter-spacing:.02em;margin-bottom:18px;
}
.breadcrumb a{color:var(--t2)}
.breadcrumb a:hover{color:var(--c1)}
.breadcrumb span.sep{color:var(--t3)}
.breadcrumb .now{
  color:var(--t3);max-width:100%;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-head{position:relative;z-index:2;max-width:860px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:5px 11px;border-radius:8px;
  background:rgba(110,91,255,.18);color:#B7ADFF;
}
.badge-line{
  background:transparent;border:1px solid var(--line-strong);color:var(--t2);font-weight:500;
}
.article-head h1{
  font-size:clamp(26px,4vw,42px);
  font-weight:800;
  line-height:1.22;
  margin:16px 0 16px;
  letter-spacing:-.01em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  font-size:13px;color:var(--t3);letter-spacing:.02em;
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--t3)}
.head-tools{display:flex;gap:10px;margin-top:22px}
.icon-btn{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line-strong);
  color:var(--t2);font-size:14px;
  background:rgba(255,255,255,.03);
  transition:color .2s,border-color .2s,transform .2s,box-shadow .2s;
}
.icon-btn:hover{color:var(--c1);border-color:var(--c1);transform:translateY(-2px);box-shadow:0 0 0 3px rgba(51,214,200,.1)}
.icon-btn:active{transform:translateY(0)}

/* ============ 正文 ============ */
.section{padding:64px 0}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.layout-article{
  display:grid;grid-template-columns:minmax(0,760px) 220px;
  gap:56px;justify-content:center;align-items:start;
}
.reader{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:44px 48px;
  box-shadow:var(--shadow-1);
}
.article-body{font-size:16px;line-height:1.85;color:#D6E1F2}
.article-body > * + *{margin-top:1.2em}
.article-body h2{
  font-size:clamp(20px,2.4vw,26px);
  font-weight:700;line-height:1.35;color:var(--t1);
  margin-top:40px;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--c1),var(--c2));
}
.article-body h3{font-size:18px;font-weight:600;line-height:1.5;color:var(--t1);margin-top:28px}
.article-body p{color:#CFDCEE;text-align:justify}
.article-body strong{color:#FFFFFF}
.article-body a{
  color:var(--c1);
  border-bottom:1px solid rgba(51,214,200,.45);
  padding-bottom:1px;
  text-underline-offset:4px;
}
.article-body a:hover{color:#7FF3E7;border-bottom-color:rgba(127,243,231,.7)}
.article-body ul,.article-body ol{padding-left:1.35em;color:#CFDCEE}
.article-body ul{list-style:none}
.article-body ul li{position:relative;padding-left:4px;margin-top:10px}
.article-body ul li::before{
  content:"";position:absolute;left:-1.05em;top:.68em;
  width:6px;height:6px;border-radius:2px;
  background:var(--c1);opacity:.85;
}
.article-body ol{list-style:decimal}
.article-body ol li{margin-top:10px;padding-left:4px}
.article-body ol li::marker{color:var(--c1);font-weight:700}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;
  border-left:3px solid var(--c1);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  background:var(--glass);
  color:#D8E4F5;
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.article-body blockquote p{margin:0}
.article-body img{border-radius:var(--radius-sm);margin:26px 0 10px;box-shadow:var(--shadow-1)}
.article-body figcaption{font-size:13px;color:var(--t3);text-align:center;letter-spacing:.02em}
.article-body code{
  background:rgba(110,91,255,.12);
  color:#C6BCFF;
  padding:2px 7px;border-radius:6px;font-size:14px;
}
.article-body hr{border:0;height:1px;background:var(--line);margin:36px 0}
.article-body table{width:100%;border-collapse:collapse;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:rgba(255,255,255,.04);color:var(--t1)}

.aside-card{
  position:sticky;top:calc(var(--header-h) + 20px);
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:20px;
}
.aside-card h4{font-size:14px;font-weight:600;color:var(--t1);margin-bottom:12px}
.aside-card ul{display:grid;gap:4px}
.aside-card li a{
  display:block;padding:9px 10px;border-radius:10px;
  font-size:13px;color:var(--t2);border-left:2px solid transparent;
}
.aside-card li a:hover{
  color:var(--c1);background:rgba(51,214,200,.07);border-left-color:var(--c1);
  transform:translateX(2px);
}
.aside-tip{
  margin-top:16px;font-size:13px;line-height:1.8;color:var(--t3);
  border-top:1px solid var(--line);padding-top:14px;
}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 24px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-lg);
}
.empty-state svg{color:var(--c1);opacity:.75;margin:0 auto 16px}
.empty-state h2{font-size:20px;font-weight:700;margin-bottom:10px}
.empty-state p{color:var(--t2);font-size:15px;margin-bottom:22px}

/* ============ 文末标签 ============ */
.article-foot{
  margin-top:40px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  font-size:12px;color:var(--t2);padding:6px 12px;border-radius:8px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  transition:color .2s,border-color .2s;
}
.tag:hover{color:var(--c1);border-color:rgba(51,214,200,.5)}

/* ============ 板块标题与卡片 ============ */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:32px;
}
.section-head h2{font-size:clamp(22px,3vw,32px);font-weight:700;line-height:1.25}
.section-head p{color:var(--t2);font-size:14px;margin-top:8px;max-width:640px}
.link-more{color:var(--c1);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-more:hover{gap:10px;color:#7FF3E7}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{
  transform:translateY(-6px);
  border-color:rgba(51,214,200,.35);
  box-shadow:var(--shadow-2),0 0 0 1px rgba(51,214,200,.25);
}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-1)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;opacity:.92}
.card:hover .card-media img{transform:scale(1.05)}
.card-media .badge{position:absolute;left:12px;top:12px;backdrop-filter:blur(6px)}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--t1)}
.card-body p{font-size:14px;color:var(--t2);line-height:1.75}
.card-meta{margin-top:auto;font-size:13px;color:var(--t3);display:flex;gap:10px;align-items:center}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--t3)}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:
    linear-gradient(120deg,rgba(51,214,200,.12),rgba(110,91,255,.14)),
    var(--bg-1);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);
  padding:40px 44px;
  display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
}
.cta-band::after{
  content:"";position:absolute;left:-80px;bottom:-140px;width:380px;height:380px;
  background:radial-gradient(circle,rgba(255,154,60,.16),transparent 66%);pointer-events:none;
}
.cta-band h2{font-size:clamp(20px,2.6vw,28px);font-weight:700;position:relative;z-index:2}
.cta-band p{color:var(--t2);font-size:15px;margin-top:8px;max-width:560px;position:relative;z-index:2}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2}
.cta-actions .btn-primary{box-shadow:0 8px 26px rgba(255,154,60,.26);background:linear-gradient(120deg,var(--c3),var(--c1));color:#12261F}

/* ============ 页脚 ============ */
.site-footer{
  background:#060A13;
  border-top:1px solid var(--line-strong);
  padding:64px 0 26px;
  margin-top:8px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--t2);font-size:13px;line-height:1.9;max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--t1);margin-bottom:16px}
.footer-col a{
  display:block;font-size:13px;color:var(--t2);padding:5px 0;
  transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:var(--c1);transform:translateX(2px)}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--t3);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{max-width:1080px}
  .layout-article{grid-template-columns:minmax(0,1fr) 210px;gap:36px}
}
@media (max-width:1023px){
  .nav-channels{display:none}
  .search-box{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-ghost{display:none}
  .layout-article{grid-template-columns:minmax(0,1fr)}
  .aside-card{display:none}
  .reader{padding:32px 26px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:32px 26px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .header-inner{gap:12px}
  .brand-text{font-size:15px;white-space:normal;max-width:170px;line-height:1.25}
  .page-hero{padding:36px 0 28px}
  .section{padding:48px 0}
  .reader{padding:24px 18px;border-radius:var(--radius-md)}
  .card-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-band{padding:26px 20px;border-radius:var(--radius-md)}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1;min-height:44px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
  .article-foot{flex-direction:column;align-items:flex-start}
  .article-meta{gap:8px 12px}
  .btn{min-height:44px}
}

/* roulang page: category1 */
:root{
  --bg:#080D18;
  --bg-alt-1:#0B1220;
  --bg-alt-2:#0F182B;
  --glass:rgba(22,36,60,.55);
  --line:rgba(255,255,255,.08);
  --primary:#33D6C8;
  --primary-soft:rgba(51,214,200,.14);
  --accent:#6E5BFF;
  --accent-soft:rgba(110,91,255,.18);
  --spark:#FF9A3C;
  --text:#E8EFFA;
  --text-2:#9FB0C9;
  --text-3:#6B7C96;
  --ok:#3ECF8E;
  --warn:#FFC53D;
  --err:#FF6B6B;
  --disabled:#46506B;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-1:0 8px 24px rgba(0,0,0,.35);
  --shadow-2:0 16px 40px rgba(0,0,0,.45);
  --container:1240px;
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
}
*,*::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(rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:22px 22px;
  color:var(--text);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(51,214,200,.28);}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.num-t{font-variant-numeric:tabular-nums;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(8,13,24,.55);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-solid{
  background:rgba(8,13,24,.92);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(51,214,200,.20),rgba(110,91,255,.26));
  border:1px solid rgba(51,214,200,.32);
  box-shadow:0 0 18px rgba(51,214,200,.16);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.nav-channels{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
  position:relative;padding:9px 14px;border-radius:10px;
  font-size:15px;color:var(--text-2);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.active{color:var(--primary);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(255,255,255,.04);
  border:1px solid var(--line);transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box input{background:none;border:0;outline:none;width:170px;font-size:14px;color:var(--text);}
.search-box input::placeholder{color:var(--text-3);}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(51,214,200,.14);}
.search-box svg{flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn-primary{
  background:linear-gradient(120deg,var(--spark),var(--primary) 58%,var(--accent));
  color:#04121A;
  box-shadow:0 6px 20px rgba(51,214,200,.18);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 24px rgba(51,214,200,.35);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:transparent;border-color:var(--line);color:var(--text);}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--text-2);padding:10px 12px;font-size:14px;font-weight:500;}
.btn-ghost:hover{color:var(--primary);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--primary);}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,8,16,.68);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);z-index:90;
  background:linear-gradient(180deg,var(--bg-alt-2),var(--bg));
  border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .28s ease;
  display:flex;flex-direction:column;padding:20px;gap:20px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-close{
  width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.05);
  border:1px solid var(--line);cursor:pointer;display:grid;place-items:center;
}
.drawer-close:hover{border-color:var(--primary);color:var(--primary);}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav .nav-link{padding:13px 14px;font-size:16px;background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:12px;}
.drawer-nav .nav-link.active{border-color:rgba(51,214,200,.4);background:var(--primary-soft);}
.drawer-nav .nav-link.active::after{display:none;}
.drawer-search{display:flex;align-items:center;gap:8px;height:46px;padding:0 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.04);border:1px solid var(--line);}
.drawer-search input{flex:1;background:none;border:0;outline:none;font-size:15px;}
.drawer-actions{display:flex;gap:12px;}
.drawer-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);}

/* ============ 通用板块 ============ */
.section{padding:96px 0;position:relative;}
.section.alt{background:var(--bg-alt-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--primary);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--accent));}
h1{font-size:clamp(28px,4.6vw,48px);font-weight:800;line-height:1.18;letter-spacing:.01em;}
h2{font-size:clamp(22px,3vw,32px);font-weight:700;line-height:1.25;}
h3{font-size:18px;font-weight:600;line-height:1.4;}
.lead{color:var(--text-2);font-size:17px;margin-top:18px;}
.sub{color:var(--text-2);font-size:15px;margin-top:14px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:8px;font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--accent-soft);color:#B7ADFF;border:1px solid rgba(110,91,255,.28);
}
.badge-cyan{background:var(--primary-soft);color:var(--primary);border-color:rgba(51,214,200,.3);}
.badge-spark{background:rgba(255,154,60,.16);color:var(--spark);border-color:rgba(255,154,60,.3);}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;padding:76px 0 64px;
  background:linear-gradient(180deg,var(--bg-alt-1) 0%,var(--bg) 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  opacity:.15;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;width:720px;height:520px;right:-140px;top:-180px;
  background:radial-gradient(circle,rgba(51,214,200,.16),rgba(110,91,255,.08) 45%,transparent 70%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.crumb{font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:20px;}
.crumb a{color:var(--text-2);transition:color .2s ease;}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--disabled);}
.crumb .now{color:var(--text-3);}
.hero-lead{max-width:660px;}
.hero-lead .hl{color:var(--primary);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  margin-top:44px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
}
.stat{background:var(--bg-alt-1);padding:20px 22px;}
.stat .v{font-size:24px;font-weight:800;line-height:1.25;letter-spacing:.01em;color:var(--text);}
.stat .v em{font-style:normal;color:var(--primary);}
.stat .k{font-size:13px;color:var(--text-3);margin-top:4px;letter-spacing:.02em;}

/* ============ 双栏：左窄右宽 ============ */
.split{display:grid;grid-template-columns:320px minmax(0,1fr);gap:32px;align-items:start;}
.side-panel{
  position:sticky;top:96px;
  background:var(--bg-alt-1);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-1);
}
.side-panel h3{font-size:15px;color:var(--text-2);letter-spacing:.08em;font-weight:600;margin-bottom:16px;}
.side-list{display:flex;flex-direction:column;gap:2px;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:12px;font-size:14px;color:var(--text-2);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.side-list a:hover{background:rgba(255,255,255,.05);color:var(--text);transform:translateX(3px);}
.side-list a span.dot{color:var(--primary);font-size:12px;}
.side-note{
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);line-height:1.75;
}
.side-panel .side-cta{margin-top:18px;}

.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.entry-card{
  background:var(--bg-alt-1);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.entry-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-2),0 0 0 1px rgba(51,214,200,.25);
  border-color:rgba(51,214,200,.25);
}
.thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt-2);}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.entry-card:hover .thumb img{transform:scale(1.05);}
.thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,13,24,0) 40%,rgba(8,13,24,.72) 100%);
}
.thumb .badge{position:absolute;top:12px;left:12px;z-index:2;}
.entry-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.entry-body h3{font-size:18px;}
.entry-body p{font-size:14px;color:var(--text-2);line-height:1.8;}
.entry-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}
.entry-meta .go{color:var(--primary);font-weight:600;transition:transform .2s ease;}
.entry-card:hover .entry-meta .go{transform:translateX(3px);}

/* ============ 步骤清单 ============ */
.steps{border-top:1px solid var(--line);}
.step{
  display:grid;grid-template-columns:76px minmax(0,1fr);gap:20px;
  padding:26px 0;border-bottom:1px solid var(--line);
  transition:padding-left .24s ease,background .24s ease;
}
.step:hover{padding-left:14px;background:linear-gradient(90deg,rgba(51,214,200,.05),transparent 60%);}
.step .no{
  font-size:34px;font-weight:800;line-height:1;
  background:linear-gradient(120deg,var(--primary),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:18px;margin-bottom:6px;}
.step p{font-size:15px;color:var(--text-2);max-width:760px;}

/* ============ 交叉跳转 ============ */
.banner{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;
  padding:32px 34px;border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(110,91,255,.18),rgba(51,214,200,.10));
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.banner h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:10px;}
.banner p{font-size:15px;color:var(--text-2);max-width:720px;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  background:var(--bg-alt-1);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item[open]{border-color:rgba(51,214,200,.35);box-shadow:var(--shadow-1);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;
  transition:color .2s ease,box-shadow .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-item[open] summary{color:var(--primary);box-shadow:inset 3px 0 0 var(--primary);}
.faq-item .chev{flex-shrink:0;transition:transform .22s ease;color:var(--text-3);}
.faq-item[open] .chev{transform:rotate(180deg);color:var(--primary);}
.faq-item .ans{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(120deg,var(--bg-alt-2),var(--bg-alt-1));
  padding:44px 40px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;width:460px;height:320px;right:-80px;bottom:-160px;
  background:radial-gradient(circle,rgba(255,154,60,.14),transparent 68%);
  pointer-events:none;
}
.cta-band .inner{position:relative;z-index:1;}
.cta-band h2{font-size:clamp(20px,2.6vw,28px);margin-bottom:10px;}
.cta-band p{font-size:15px;color:var(--text-2);max-width:640px;}
.cta-band .acts{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:0;background:#060A13;border-top:1px solid var(--line);
  padding:72px 0 28px;
}
.footer-grid{
  display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));gap:40px;
  padding-bottom:44px;border-bottom:1px solid var(--line);
}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text-2);line-height:1.85;max-width:380px;}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--text);}
.footer-col{display:flex;flex-direction:column;}
.footer-col a{
  font-size:13px;color:var(--text-2);padding:5px 0;
  transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:var(--primary);transform:translateX(2px);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding-top:24px;font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .split{grid-template-columns:280px minmax(0,1fr);gap:24px;}
}
@media (max-width:1023px){
  .nav-channels{display:none;}
  .search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-sm{display:none;}
  .section{padding:72px 0;}
  .page-hero{padding:56px 0 48px;}
  .split{grid-template-columns:minmax(0,1fr);}
  .side-panel{position:static;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .banner,.cta-band{grid-template-columns:minmax(0,1fr);}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .header-inner{height:64px;gap:12px;}
  .brand-text{font-size:15px;}
  .entry-grid{grid-template-columns:minmax(0,1fr);}
  .stat-bar{grid-template-columns:1fr 1fr;}
  .stat{padding:16px;}
  .step{grid-template-columns:52px minmax(0,1fr);gap:14px;}
  .step .no{font-size:28px;}
  .hero-actions .btn,.cta-band .acts .btn{width:100%;}
  .cta-band,.banner{padding:26px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .stat-bar{grid-template-columns:1fr;}
  h1{font-size:clamp(26px,7.4vw,32px);}
}

/* roulang page: category2 */
:root{
  --bg:#080D18;
  --bg-alt:#0B1220;
  --panel:#0F182B;
  --glass:rgba(22,36,60,.55);
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --c1:#33D6C8;
  --c2:#6E5BFF;
  --c3:#FF9A3C;
  --tx:#E8EFFA;
  --tx2:#9FB0C9;
  --tx3:#6B7C96;
  --ok:#3ECF8E;
  --warn:#FFC53D;
  --err:#FF6B6B;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-xs:8px;
  --sh:0 8px 24px rgba(0,0,0,.35);
  --sh-hover:0 16px 40px rgba(0,0,0,.45);
  --ease:cubic-bezier(.4,.14,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--tx);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700}
p{margin:0}
:focus-visible{outline:2px solid var(--c1);outline-offset:2px;border-radius:6px}
::selection{background:rgba(51,214,200,.28);color:#fff}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(8,13,24,.74);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-solid{
  background:rgba(8,13,24,.95);
  box-shadow:0 10px 30px rgba(0,0,0,.42);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(51,214,200,.2),rgba(110,91,255,.22));
  border:1px solid var(--line-strong);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.nav-channels{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  position:relative;
  padding:9px 15px;border-radius:999px;
  font-size:14.5px;color:var(--tx2);
  transition:color .2s var(--ease),background .2s var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:var(--tx);background:rgba(255,255,255,.06)}
.nav-link:active{background:rgba(255,255,255,.1)}
.nav-link.active{color:var(--c1)}
.nav-link.active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:1px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--c1),var(--c2));
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:999px;
  padding:8px 14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.search-box:focus-within{
  border-color:var(--c1);
  box-shadow:0 0 0 3px rgba(51,214,200,.13);
  background:rgba(51,214,200,.06);
}
.search-box svg{flex-shrink:0;color:var(--tx3)}
.search-box input{
  width:150px;background:transparent;border:0;outline:none;
  font-size:13.5px;color:var(--tx);
}
.search-box input::placeholder{color:var(--tx3)}
.btn-primary,.btn-secondary,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;cursor:pointer;border:1px solid transparent;
  font-size:15px;font-weight:600;padding:12px 24px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(100deg,var(--c3),var(--c1));
  color:#08121C;
  box-shadow:0 6px 18px rgba(51,214,200,.2);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 26px rgba(51,214,200,.36)}
.btn-primary:active{transform:translateY(1px);filter:brightness(.96)}
.btn-secondary{
  background:transparent;border-color:var(--line-strong);color:var(--tx);
}
.btn-secondary:hover{border-color:var(--c1);color:var(--c1);transform:translateY(-2px)}
.btn-secondary:active{transform:translateY(1px)}
.btn-ghost{
  background:transparent;color:var(--tx2);padding:10px 14px;font-size:14px;
}
.btn-ghost:hover{color:var(--c1);background:rgba(51,214,200,.08)}
.btn-sm{padding:9px 18px;font-size:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle:hover{background:rgba(51,214,200,.1);border-color:rgba(51,214,200,.4)}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(11,18,32,.98);
  padding:18px 24px 24px;
}
.mobile-drawer.open{display:block}
.mobile-drawer .nav-link{display:block;padding:13px 14px;border-radius:12px;font-size:15.5px}
.mobile-drawer .nav-link.active::after{display:none}
.mobile-drawer .nav-link.active{background:rgba(51,214,200,.1)}
.drawer-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.drawer-search{width:100%;margin-top:14px}
.drawer-search input{width:100%}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  padding:84px 0 60px;
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.16;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse at 30% 10%,#000 10%,transparent 72%);
  mask-image:radial-gradient(ellipse at 30% 10%,#000 10%,transparent 72%);
  pointer-events:none;
}
.hero-glow{
  position:absolute;width:560px;height:560px;right:-160px;top:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(51,214,200,.22),rgba(110,91,255,.1) 45%,transparent 68%);
  filter:blur(14px);pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.08em;
  color:var(--c1);
  background:rgba(51,214,200,.12);
  border:1px solid rgba(51,214,200,.26);
  border-radius:999px;padding:6px 14px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c1);box-shadow:0 0 10px var(--c1)}
.cat-hero h1{
  margin-top:22px;
  font-size:clamp(28px,4.6vw,48px);
  font-weight:800;line-height:1.18;letter-spacing:-.01em;
  max-width:20ch;
}
.cat-hero .lede{
  margin-top:18px;max-width:760px;
  font-size:17px;line-height:1.9;color:var(--tx2);
}
.stat-strip{
  margin-top:38px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px 26px;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
}
.stat-item{border-left:1px solid var(--line);padding-left:18px}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-num{font-size:26px;font-weight:800;color:var(--tx);line-height:1.3}
.stat-num span{font-size:14px;font-weight:600;color:var(--c1);margin-left:4px}
.stat-label{font-size:12.5px;color:var(--tx3);letter-spacing:.02em}

/* ---------- section ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-head{margin-bottom:44px;max-width:760px}
.section-head h2{
  font-size:clamp(22px,3vw,32px);font-weight:700;line-height:1.25;letter-spacing:-.01em;
}
.section-head p{margin-top:14px;color:var(--tx2);font-size:15.5px}

/* ---------- masonry tips ---------- */
.masonry{columns:2;column-gap:24px}
.tip-card{
  break-inside:avoid;
  margin:0 0 24px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px;
  box-shadow:var(--sh);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.tip-card:hover{
  transform:translateY(-4px);
  border-color:rgba(51,214,200,.32);
  box-shadow:var(--sh-hover),0 0 0 1px rgba(51,214,200,.22);
}
.card-icon{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(51,214,200,.12);
  color:var(--c1);
  border:1px solid rgba(51,214,200,.2);
  margin-bottom:16px;
}
.card-icon.indigo{background:rgba(110,91,255,.16);color:#A79BFF;border-color:rgba(110,91,255,.26)}
.card-icon.orange{background:rgba(255,154,60,.14);color:var(--c3);border-color:rgba(255,154,60,.24)}
.tip-card h3{font-size:18.5px;font-weight:600;line-height:1.4;margin-bottom:10px}
.tip-card p{font-size:15px;color:var(--tx2)}
.tip-list{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.tip-list li{
  position:relative;padding-left:18px;font-size:14.5px;color:var(--tx2);
}
.tip-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;
  background:linear-gradient(135deg,var(--c1),var(--c2));
}
.tip-figure{margin-top:18px;border-radius:var(--r-sm);overflow:hidden;border:1px solid var(--line)}
.tip-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.tip-figure figcaption{font-size:12.5px;color:var(--tx3);padding:9px 12px;background:rgba(0,0,0,.28)}
.badge{
  display:inline-block;font-size:12px;font-weight:600;
  border-radius:var(--r-xs);padding:4px 10px;
  background:rgba(110,91,255,.18);color:#B3A8FF;
}
.badge.ok{background:rgba(62,207,142,.18);color:var(--ok)}
.badge.warn{background:rgba(255,197,61,.18);color:var(--warn)}
.badge.orange{background:rgba(255,154,60,.16);color:var(--c3)}
.tip-card .badge{margin-bottom:14px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 24px;
  position:relative;
  overflow:hidden;
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:rgba(110,91,255,.36);box-shadow:var(--sh-hover)}
.step-num{
  font-size:34px;font-weight:800;line-height:1;
  background:linear-gradient(120deg,var(--c1),var(--c2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.step h3{font-size:17.5px;font-weight:600;margin:14px 0 8px}
.step p{font-size:14.5px;color:var(--tx2)}
.wide-bar{
  margin-top:28px;
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  background:var(--glass);
  border:1px solid var(--line);
  border-top:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-md);
  padding:22px 26px;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.wide-bar p{font-size:15px;color:var(--tx2);flex:1;min-width:240px}
.wide-bar strong{color:var(--tx)}

/* ---------- cross link ---------- */
.cross{padding:80px 0}
.cross-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:linear-gradient(120deg,rgba(110,91,255,.16),rgba(51,214,200,.08));
  border:1px solid var(--line-strong);
  border-radius:var(--r-lg);
  padding:38px 40px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.cross-inner h2{font-size:clamp(20px,2.4vw,26px);line-height:1.35;margin-top:12px;max-width:26ch}
.cross-inner p{margin-top:12px;color:var(--tx2);font-size:15px;max-width:56ch}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px}
.faq-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item:hover{border-color:rgba(51,214,200,.3)}
.faq-item[open]{border-color:rgba(51,214,200,.38);box-shadow:0 12px 32px rgba(0,0,0,.4)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:14px;
  padding:20px 24px;
  font-size:16px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";margin-left:auto;flex-shrink:0;
  width:9px;height:9px;border-right:2px solid var(--tx3);border-bottom:2px solid var(--tx3);
  transform:rotate(45deg);transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--c1)}
.faq-item summary::before{
  content:"";width:3px;height:18px;border-radius:3px;background:var(--line-strong);
  transition:background .22s var(--ease);flex-shrink:0;
}
.faq-item[open] summary::before{background:linear-gradient(180deg,var(--c1),var(--c2))}
.faq-body{padding:0 24px 22px 42px;color:var(--tx2);font-size:15px;line-height:1.85}

/* ---------- cta ---------- */
.cta-wrap{padding:0 0 96px}
.cta-box{
  position:relative;overflow:hidden;
  text-align:center;
  background:var(--glass);
  border:1px solid var(--line-strong);
  border-radius:24px;
  padding:60px 32px;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.09),var(--sh);
}
.cta-box::before{
  content:"";position:absolute;width:420px;height:420px;left:50%;top:-260px;transform:translateX(-50%);
  background:radial-gradient(circle,rgba(51,214,200,.2),transparent 66%);pointer-events:none;
}
.cta-box h2{position:relative;font-size:clamp(22px,3vw,30px);line-height:1.3}
.cta-box p{position:relative;margin:16px auto 0;max-width:620px;color:var(--tx2);font-size:15.5px}
.cta-actions{position:relative;margin-top:30px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{
  background:#05090F;
  border-top:1px solid rgba(255,255,255,.1);
  padding:70px 0 26px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;
  padding-bottom:44px;border-bottom:1px solid var(--line);
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13.5px;color:var(--tx3);line-height:1.85;max-width:38ch}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--tx)}
.footer-col a{
  display:block;font-size:13px;color:var(--tx2);padding:5px 0;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col a:hover{color:var(--c1);transform:translateX(2px)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;font-size:12.5px;color:var(--tx3);
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{max-width:1080px}
  .search-box input{width:120px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .nav-channels{display:none}
  .search-box{display:none}
  .btn-ghost{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:66px}
  .stat-strip{grid-template-columns:repeat(2,1fr);row-gap:22px}
  .stat-item:nth-child(3){border-left:0;padding-left:0}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .cat-hero{padding:56px 0 44px}
  .cat-hero .lede{font-size:15.5px}
  .masonry{columns:1}
  .steps{grid-template-columns:1fr}
  .stat-strip{padding:18px;gap:16px}
  .stat-num{font-size:22px}
  .cross-inner{padding:28px 22px}
  .cta-box{padding:44px 20px}
  .cta-wrap{padding:0 0 56px}
  .faq-body{padding:0 20px 20px 20px}
  .faq-item summary{padding:18px 20px;font-size:15px;gap:10px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{padding:52px 0 22px}
  .brand-text{font-size:15.5px}
  .nav-toggle{width:40px;height:40px}
}
@media (max-width:520px){
  .header-inner{gap:12px}
  .brand-text{font-size:14.5px;max-width:150px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .stat-strip{grid-template-columns:1fr}
  .stat-item{border-left:0;padding-left:0}
  .btn-primary,.btn-secondary{padding:11px 20px;font-size:14.5px}
}