/* roulang page: index */
:root{
  --bg-900:#070B16;
  --bg-800:#0C1324;
  --bg-700:#121B30;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --brand:#2B6BFF;
  --brand-2:#35E1D6;
  --accent:#8B5CF6;
  --warm:#FFB020;
  --text-1:#EAF0FB;
  --text-2:#A9B6CC;
  --text-3:#6F7D96;
  --glow:0 0 0 1px rgba(53,225,214,.35), 0 10px 34px rgba(43,107,255,.34);
  --shadow-card:0 18px 44px rgba(3,7,18,.55);
  --r-sm:8px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --container:1200px;
  --num-font:"Barlow","Rajdhani","PingFang SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-1);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;background-color:transparent;}
a:hover,a:focus{color:inherit;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(53,225,214,.28);color:#fff;}

.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--layer{background:var(--bg-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.divider-line{height:1px;background:linear-gradient(90deg,transparent,rgba(53,225,214,.35),transparent);border:0;margin:0;}
.bg-grid::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;opacity:.05;
}
.bg-orb{
  position:absolute;border-radius:50%;pointer-events:none;filter:blur(0);
  background:radial-gradient(circle,rgba(43,107,255,.30),rgba(7,11,22,0) 68%);
}
.bg-orb.orb-cyan{background:radial-gradient(circle,rgba(53,225,214,.22),rgba(7,11,22,0) 68%);}
.bg-orb.orb-purple{background:radial-gradient(circle,rgba(139,92,246,.20),rgba(7,11,22,0) 68%);}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(53,225,214,.35);
  background:rgba(53,225,214,.08);
  color:var(--brand-2);font-size:13px;line-height:1.4;letter-spacing:.04em;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 10px rgba(53,225,214,.9);}
.eyebrow--purple{border-color:rgba(139,92,246,.4);background:rgba(139,92,246,.12);color:#C4B5FD;}

h1{
  font-size:clamp(28px,4.2vw,44px);
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.01em;
}
h2{
  font-size:clamp(24px,3vw,34px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:-.01em;
}
h3{font-size:20px;font-weight:600;line-height:1.5;}
h4{font-size:17px;font-weight:600;line-height:1.6;}
p{color:var(--text-2);}
.lead{font-size:17px;color:var(--text-2);max-width:760px;}
.section-head{margin-bottom:44px;}
.section-head .eyebrow{margin-bottom:16px;}
.section-head h2{margin-bottom:14px;}
.section-head p{max-width:720px;}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.text-link{
  color:var(--brand-2);font-size:15px;display:inline-flex;align-items:center;gap:6px;
  border-bottom:1px dashed rgba(53,225,214,.5);padding-bottom:2px;
  transition:color .18s ease-out,border-color .18s ease-out,opacity .18s ease-out;
}
.text-link:hover{border-bottom-style:solid;border-color:var(--brand-2);color:#8FF7EE;}

/* ============ 公告条 ============ */
.notice-bar{
  background:linear-gradient(90deg,rgba(43,107,255,.20),rgba(139,92,246,.16));
  border-bottom:1px solid var(--line);
  color:var(--warm);font-size:13px;line-height:1.5;
}
.notice-bar .container{display:flex;align-items:center;gap:12px;min-height:38px;}
.notice-bar i{color:var(--warm);}
.notice-bar p{color:var(--warm);margin:0;font-size:13px;flex:1;}
.notice-close{
  color:var(--text-2);width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .18s ease-out,color .18s ease-out;
}
.notice-close:hover{background:rgba(255,255,255,.08);color:var(--text-1);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,22,.72);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid transparent;
  transition:background .24s ease-out,border-color .24s ease-out,box-shadow .24s ease-out;
}
.site-header.is-scrolled{
  background:rgba(7,11,22,.94);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px rgba(3,7,18,.5);
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:72px;}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(140deg,rgba(43,107,255,.9),rgba(53,225,214,.85));
  box-shadow:0 0 0 1px rgba(53,225,214,.4),0 8px 22px rgba(43,107,255,.4);
  position:relative;
}
.logo-mark svg{width:20px;height:20px;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text strong{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--text-1);}
.logo-text span{font-size:11px;color:var(--brand-2);letter-spacing:.16em;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-links a{
  position:relative;padding:9px 14px;font-size:15px;color:var(--text-2);
  border-radius:var(--r-sm);transition:color .18s ease-out,background .18s ease-out;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  transform:scaleX(0);transform-origin:left;border-radius:2px;
  transition:transform .22s ease-out;
}
.nav-links a:hover{color:var(--text-1);background:rgba(255,255,255,.04);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--text-1);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.btn-ghost-icon{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);background:transparent;
  color:var(--text-1);font-size:14px;white-space:nowrap;
  transition:border-color .18s ease-out,background .18s ease-out,transform .18s ease-out;
}
.btn-ghost-icon:hover{border-color:var(--brand-2);background:var(--panel);transform:translateY(-1px);}
.btn-ghost-icon i{color:var(--brand-2);font-size:13px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line-strong);color:var(--text-1);
  align-items:center;justify-content:center;font-size:17px;
}
.nav-toggle:hover{border-color:var(--brand-2);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 28px;border-radius:12px;font-size:15px;font-weight:600;
  border:0;white-space:nowrap;cursor:pointer;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-position .35s ease-out,border-color .18s ease-out,background-color .18s ease-out;
}
.btn-primary{
  background-image:linear-gradient(100deg,#2B6BFF 0%,#35E1D6 100%);
  background-size:180% 100%;background-position:0% 50%;
  color:#04121A;font-weight:700;
  box-shadow:var(--glow);
}
.btn-primary:hover{background-position:100% 50%;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(53,225,214,.5),0 16px 42px rgba(43,107,255,.5);}
.btn-primary:active{transform:translateY(1px);}
.btn-secondary{
  background:transparent;border:1px solid var(--line-strong);color:var(--text-1);
}
.btn-secondary:hover{background:var(--panel-2);border-color:var(--brand-2);transform:translateY(-2px);}
.btn-secondary:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn[disabled],.btn.is-disabled{filter:saturate(.4);opacity:.6;box-shadow:none;cursor:not-allowed;transform:none;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(90deg,rgba(7,11,22,.94),rgba(7,11,22,.58)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 78% 28%,rgba(53,225,214,.16),rgba(7,11,22,0) 58%);
}
.hero .container{position:relative;z-index:2;}
.hero-grid{padding:88px 0 84px;}
.hero-copy h1{margin:18px 0 18px;}
.hero-copy h1 em{
  font-style:normal;
  background:linear-gradient(100deg,#8BB4FF,#35E1D6);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:30px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px;}
.trust-row{display:flex;flex-wrap:wrap;gap:38px;padding-top:26px;border-top:1px solid var(--line);}
.trust-item .num{
  font-family:var(--num-font);font-size:32px;font-weight:700;letter-spacing:-.02em;
  color:var(--text-1);display:flex;align-items:baseline;gap:4px;line-height:1.1;
}
.trust-item .num small{font-size:14px;color:var(--brand-2);font-weight:600;}
.trust-item .label{font-size:13px;color:var(--text-3);margin-top:4px;letter-spacing:.04em;}

.hero-cards{display:flex;flex-direction:column;gap:16px;}
.entry-card{
  position:relative;border-radius:var(--r-lg);padding:24px;
  background:linear-gradient(160deg,rgba(43,107,255,.16),rgba(255,255,255,.05));
  border:1px solid rgba(53,225,214,.28);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 0 0 1px rgba(53,225,214,.14),0 22px 50px rgba(3,7,18,.6);
}
.entry-card .status{
  display:inline-flex;align-items:center;gap:7px;font-size:12px;color:var(--brand-2);
  border:1px solid rgba(53,225,214,.4);border-radius:var(--r-pill);padding:4px 12px;
}
.entry-card .status i{font-size:8px;}
.entry-card h3{margin:16px 0 8px;font-size:19px;}
.entry-card p{font-size:14px;color:var(--text-2);}
.entry-card .entry-link{
  margin-top:18px;display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);padding-top:16px;font-size:14px;color:var(--text-1);
}
.entry-card .entry-link i{color:var(--brand-2);}
.mini-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.mini-card{
  border-radius:var(--r-md);padding:18px;background:var(--panel);
  border:1px solid var(--line);backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform .18s ease-out,border-color .18s ease-out;
}
.mini-card:hover{transform:translateY(-3px);border-color:var(--brand-2);}
.mini-card .ico{color:var(--brand-2);font-size:16px;margin-bottom:10px;display:block;}
.mini-card h4{font-size:15px;margin-bottom:6px;}
.mini-card p{font-size:13px;color:var(--text-3);}

/* ============ 痛点区 ============ */
.pain-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;}
.pain-col{display:flex;flex-direction:column;gap:24px;}
.card{
  position:relative;border-radius:var(--r-md);padding:26px;
  background:var(--panel);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.card:hover{transform:translateY(-4px);border-color:var(--brand-2);box-shadow:var(--shadow-card);}
.pain-card .idx{
  font-family:var(--num-font);font-size:26px;font-weight:700;color:var(--warm);
  letter-spacing:.02em;display:block;margin-bottom:14px;
}
.pain-card h3{margin-bottom:10px;}
.pain-card p{font-size:14.5px;}
.pain-card--big{padding:34px;}
.pain-card--big h3{font-size:22px;}
.pain-card--big p{font-size:15.5px;max-width:520px;}
.pain-tag{
  margin-top:18px;display:inline-flex;align-items:center;gap:8px;font-size:13px;
  color:var(--text-3);border:1px solid var(--line);border-radius:var(--r-pill);padding:5px 14px;
}

/* ============ 解决方案 ============ */
.solution-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.solution-row + .solution-row{margin-top:88px;}
.solution-row.reverse .solution-media{order:2;}
.solution-media{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-card);position:relative;
}
.solution-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.solution-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,22,0),rgba(7,11,22,.55));
}
.solution-body h3{font-size:23px;margin-bottom:14px;}
.check-list{margin:20px 0 24px;display:flex;flex-direction:column;gap:12px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);}
.check-list i{color:var(--brand-2);font-size:13px;margin-top:6px;}
.solution-note{
  border-left:2px solid var(--accent);padding:10px 0 10px 16px;
  font-size:14px;color:var(--text-3);margin-bottom:22px;
}

/* ============ 成果区 ============ */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:44px;}
.metric-card{
  border-radius:var(--r-md);padding:26px 22px;
  background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.03));
  border:1px solid var(--line-strong);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:transform .18s ease-out,border-color .18s ease-out;
}
.metric-card:hover{transform:translateY(-4px);border-color:var(--brand-2);}
.metric-card .value{
  font-family:var(--num-font);font-size:38px;font-weight:700;letter-spacing:-.02em;
  color:var(--text-1);line-height:1.1;display:flex;align-items:baseline;gap:4px;
}
.metric-card .value small{font-size:15px;color:var(--brand-2);font-weight:600;}
.metric-card .desc{font-size:13.5px;color:var(--text-3);margin-top:8px;}
.progress-block{display:grid;grid-template-columns:1fr 1fr;gap:32px;}
.progress-item .p-top{display:flex;justify-content:space-between;font-size:14px;color:var(--text-2);margin-bottom:10px;}
.progress-item .p-top b{font-family:var(--num-font);color:var(--brand-2);font-weight:700;}
.progress-track{height:8px;border-radius:var(--r-pill);background:rgba(255,255,255,.08);overflow:hidden;}
.progress-fill{
  height:100%;border-radius:var(--r-pill);
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  box-shadow:0 0 14px rgba(53,225,214,.6);
}

/* ============ 分类入口 ============ */
.cat-layout{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:20px;}
.cat-tall{display:flex;flex-direction:column;gap:20px;}
.cat-card{
  position:relative;display:flex;flex-direction:column;justify-content:space-between;
  border-radius:var(--r-md);padding:24px;min-height:170px;
  background:var(--panel);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.cat-card:hover{transform:translateY(-4px);border-color:var(--brand-2);box-shadow:var(--shadow-card);}
.cat-card .ico{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(139,92,246,.16);border:1px solid rgba(139,92,246,.35);
  color:#C4B5FD;font-size:16px;margin-bottom:18px;
}
.cat-card h3{font-size:18px;margin-bottom:8px;}
.cat-card p{font-size:14px;color:var(--text-3);}
.cat-card .arrow{
  margin-top:20px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--brand-2);
}
.cat-card--hero{
  min-height:100%;
  padding:32px;
  background:linear-gradient(155deg,rgba(43,107,255,.22),rgba(255,255,255,.04));
  border-color:rgba(53,225,214,.3);
}
.cat-card--hero h3{font-size:24px;}
.cat-card--hero p{font-size:15px;color:var(--text-2);max-width:420px;}
.cat-card--hero .hero-thumb{
  border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);margin:22px 0 20px;
}
.cat-card--hero .hero-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px;}
.tag{
  font-size:12px;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--text-2);
}

/* ============ 资讯列表 ============ */
.cms-card{
  display:flex;flex-direction:column;height:100%;padding:0;overflow:hidden;
}
.cms-card .thumb{display:block;overflow:hidden;border-bottom:1px solid var(--line);}
.cms-card .thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s ease-out;}
.cms-card:hover .thumb img{transform:scale(1.04);}
.cms-card .body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.badge{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  font-size:12px;padding:4px 12px;border-radius:12px;
  background:rgba(139,92,246,.16);border:1px solid rgba(139,92,246,.34);color:#C4B5FD;
}
.cms-card h3{font-size:17px;margin:14px 0 10px;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.cms-card .excerpt{
  font-size:14px;color:var(--text-3);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);padding-top:14px;font-size:13px;
}
.cms-meta .time{color:var(--warm);font-family:var(--num-font);letter-spacing:.02em;}
.cms-meta .cat{color:var(--text-3);}
.cms-card .read-link{
  margin-top:14px;font-size:13.5px;color:var(--brand-2);display:inline-flex;align-items:center;gap:6px;
}
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--r-md);
  padding:56px 24px;text-align:center;background:var(--panel);
}
.empty-state i{font-size:30px;color:var(--text-3);margin-bottom:16px;display:block;}
.empty-state p{color:var(--text-3);margin-bottom:20px;}

/* ============ 客户证言 ============ */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.voice-card{
  border-radius:var(--r-md);padding:28px;background:var(--panel);
  border:1px solid var(--line);position:relative;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .18s ease-out,border-color .18s ease-out;
}
.voice-card:hover{transform:translateY(-4px);border-color:var(--brand-2);}
.voice-card .quote{font-size:34px;line-height:1;color:rgba(53,225,214,.32);font-family:Georgia,serif;}
.voice-card p{font-size:15px;color:var(--text-2);margin:12px 0 22px;}
.voice-user{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:16px;}
.avatar{
  width:38px;height:38px;border-radius:50%;flex:0 0 38px;
  background:linear-gradient(140deg,rgba(43,107,255,.7),rgba(139,92,246,.7));
  display:grid;place-items:center;font-size:14px;font-weight:700;color:#fff;
}
.voice-user .name{font-size:14px;color:var(--text-1);}
.voice-user .role{font-size:12px;color:var(--text-3);}
.voice-user .time{margin-left:auto;font-size:12px;color:var(--warm);font-family:var(--num-font);}

/* ============ FAQ ============ */
.faq-list{max-width:880px;margin:0 auto;}
.accordion{border:0;background:transparent;}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--r-md);margin-bottom:14px;
  background:var(--panel);overflow:hidden;
  transition:border-color .18s ease-out,background .18s ease-out;
}
.accordion-item.is-active{border-color:rgba(53,225,214,.45);background:rgba(255,255,255,.07);}
.accordion-title{
  border:0;padding:0 24px;height:60px;display:flex;align-items:center;gap:16px;
  font-size:16px;font-weight:600;color:var(--text-1);background:transparent;
}
.accordion-title:hover{background:rgba(255,255,255,.03);}
.accordion-title .sign{
  margin-left:auto;font-size:20px;color:var(--brand-2);line-height:1;
  transition:transform .22s ease-out;flex:0 0 20px;text-align:center;
}
.accordion-item.is-active .accordion-title .sign{transform:rotate(180deg);}
.accordion-content{padding:0 24px 24px 24px;border:0;background:transparent;}
.accordion-content p{font-size:14.5px;color:var(--text-2);}
.accordion-title::before{display:none;}

/* ============ CTA 区 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:
    linear-gradient(90deg,rgba(7,11,22,.94),rgba(7,11,22,.7)),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 22% 30%,rgba(53,225,214,.2),rgba(7,11,22,0) 55%);
  pointer-events:none;
}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;position:relative;z-index:2;}
.cta-copy h2{margin:16px 0 14px;}
.cta-copy p{font-size:16px;color:var(--text-2);max-width:480px;}
.cta-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;}
.form-card{
  border-radius:var(--r-lg);padding:30px;
  background:rgba(255,255,255,.06);border:1px solid var(--line-strong);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.form-card h3{font-size:19px;margin-bottom:6px;}
.form-card .form-hint{font-size:13px;color:var(--text-3);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;}
.field input,.field select{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line-strong);
  color:var(--text-1);font-size:14.5px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.field select option{background:var(--bg-800);color:var(--text-1);}
.field input::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--brand-2);background:rgba(53,225,214,.06);
  box-shadow:0 0 0 3px rgba(53,225,214,.16);
}
.field.has-error input,.field.has-error select{border-color:#FF7A6B;}
.field .err{display:none;font-size:12.5px;color:#FF9A8D;margin-top:7px;}
.field.has-error .err{display:block;}
.form-card .btn-primary{width:100%;margin-top:8px;}
.form-note{font-size:12.5px;color:var(--text-3);margin-top:14px;text-align:center;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-800);border-top:1px solid transparent;
  background-image:linear-gradient(var(--bg-800),var(--bg-800)),
    linear-gradient(90deg,transparent,rgba(53,225,214,.4),transparent);
  background-origin:border-box;background-clip:padding-box,border-box;
  padding:72px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand p{font-size:14px;color:var(--text-3);max-width:320px;}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text-1);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--text-3);transition:color .18s ease-out;}
.footer-col a:hover{color:var(--brand-2);}
.footer-contact li{font-size:14px;color:var(--text-3);display:flex;gap:10px;align-items:flex-start;}
.footer-contact i{color:var(--brand-2);margin-top:6px;font-size:12px;}
.qr-box{
  margin-top:18px;width:104px;height:104px;border-radius:var(--r-sm);
  border:1px dashed var(--line-strong);display:grid;place-items:center;
  color:var(--text-3);font-size:12px;text-align:center;line-height:1.5;
  background:rgba(255,255,255,.03);
}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--brand-2);}

/* 返回顶部 */
.to-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;color:#04121A;font-size:15px;
  background-image:linear-gradient(120deg,#2B6BFF,#35E1D6);
  box-shadow:var(--glow);z-index:70;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .24s ease-out,transform .24s ease-out,visibility .24s;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:active{transform:translateY(1px);}

/* 入场动效 */
.fade-up{opacity:0;transform:translateY(16px);}
.fade-up.is-in{opacity:1;transform:translateY(0);transition:opacity .5s ease-out,transform .5s ease-out;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .section{padding:72px 0;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .btn-ghost-icon{display:none;}
  .hero-grid{padding:64px 0 60px;}
  .pain-grid{grid-template-columns:1fr;}
  .solution-row{grid-template-columns:1fr;gap:28px;}
  .solution-row.reverse .solution-media{order:0;}
  .solution-row + .solution-row{margin-top:64px;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .cat-layout{grid-template-columns:1fr 1fr;}
  .voice-grid{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .mobile-panel{
    display:block;position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);
    background:rgba(9,14,27,.98);border-left:1px solid var(--line);
    padding:80px 24px 28px;z-index:80;transform:translateX(102%);
    transition:transform .28s ease-out;overflow-y:auto;
  }
  .mobile-panel.is-open{transform:translateX(0);}
  .mobile-panel a.mp-link{
    display:flex;align-items:center;justify-content:space-between;
    min-height:52px;font-size:16px;color:var(--text-2);
    border-bottom:1px solid var(--line);
  }
  .mobile-panel a.mp-link.is-active{color:var(--brand-2);font-weight:600;}
  .mobile-panel .btn-primary{width:100%;margin-top:26px;}
  .mobile-close{
    position:absolute;top:20px;right:20px;width:40px;height:40px;border-radius:var(--r-sm);
    border:1px solid var(--line-strong);color:var(--text-1);display:grid;place-items:center;
  }
  .mobile-mask{
    position:fixed;inset:0;background:rgba(3,7,18,.6);z-index:75;
    opacity:0;visibility:hidden;transition:opacity .28s ease-out,visibility .28s;
  }
  .mobile-mask.is-open{opacity:1;visibility:visible;}
}
@media (min-width:1024px){
  .mobile-panel,.mobile-mask{display:none;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .hero-grid{padding:52px 0 50px;}
  .hero-sub{font-size:15.5px;}
  .trust-row{gap:24px;}
  .trust-item .num{font-size:26px;}
  .mini-cards{grid-template-columns:1fr;}
  .metric-grid{grid-template-columns:1fr;gap:14px;}
  .progress-block{grid-template-columns:1fr;gap:22px;}
  .cat-layout{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .accordion-title{height:auto;padding:16px 18px;font-size:15px;align-items:flex-start;}
  .accordion-content{padding:0 18px 20px;}
  .form-card{padding:22px;}
  .footer-bottom{flex-direction:column;}
  .to-top{right:16px;bottom:18px;}
}
@media (max-width:559px){
  h1{font-size:26px;}
  .btn{height:46px;padding:0 20px;font-size:14.5px;}
  .hero-cta .btn{width:100%;}
  .notice-bar p{font-size:12px;}
  .voice-card{padding:22px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .fade-up{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
/* ============ 设计变量层 ============ */
:root{
  --bg-900:#070B16;
  --bg-800:#0C1324;
  --bg-700:#121B30;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.075);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --brand:#2B6BFF;
  --brand-2:#35E1D6;
  --accent:#8B5CF6;
  --warm:#FFB020;
  --danger:#FF6B6B;
  --text-1:#EAF0FB;
  --text-2:#A9B6CC;
  --text-3:#6F7D96;
  --r-xs:8px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --glow:0 0 0 1px rgba(53,225,214,.35),0 10px 34px rgba(43,107,255,.34);
  --shadow-card:0 18px 40px rgba(2,6,18,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Barlow","Rajdhani",system-ui,-apple-system,"Segoe UI",sans-serif;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  background:var(--bg-900);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 420px at 12% -6%,rgba(43,107,255,.16),transparent 68%),
    radial-gradient(620px 400px at 92% 4%,rgba(139,92,246,.13),transparent 70%),
    radial-gradient(560px 420px at 50% 108%,rgba(53,225,214,.10),transparent 70%);
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px}
button{font:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p,figure{margin:0}
h1,h2,h3,h4{font-weight:700;color:var(--text-1)}
table{border-collapse:collapse;border-spacing:0}
::selection{background:rgba(53,225,214,.28);color:#fff}

/* ============ 通用容器与板块 ============ */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:1;
}
.section{padding:96px 0;position:relative}
.section--tight{padding:64px 0}
.section--dark{background:var(--bg-800)}
.section-divider{
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,225,214,.35),rgba(139,92,246,.28),transparent);
  border:0;
  margin:0;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  border:1px solid rgba(53,225,214,.32);
  background:rgba(53,225,214,.08);
  color:var(--brand-2);
  font-size:13px;
  letter-spacing:.04em;
}
.eyebrow .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--brand-2);
  box-shadow:0 0 10px rgba(53,225,214,.9);
}
.section-head{margin-bottom:40px;max-width:760px}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.3;margin-bottom:12px}
.section-head p{color:var(--text-2);font-size:15px}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:12px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{
  background:linear-gradient(100deg,#2B6BFF 0%,#35E1D6 100%);
  color:#04121A;
  box-shadow:0 0 0 1px rgba(53,225,214,.28),0 12px 30px rgba(43,107,255,.32);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(53,225,214,.5),0 18px 40px rgba(43,107,255,.45);
}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text-1);
}
.btn-ghost:hover{
  background:var(--panel);
  border-color:rgba(53,225,214,.55);
  transform:translateY(-2px);
}
.btn-sm{height:40px;padding:0 20px;font-size:14px;border-radius:var(--r-pill)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{
  filter:saturate(40%);
  box-shadow:none;
  opacity:.62;
  cursor:not-allowed;
  transform:none;
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--brand-2);
  font-size:14px;
  font-weight:600;
  padding-bottom:2px;
  border-bottom:1px solid rgba(53,225,214,.35);
}
.link-arrow:hover{border-bottom-color:var(--brand-2);color:#7af0e8}
.link-arrow i{transition:transform .18s var(--ease)}
.link-arrow:hover i{transform:translateX(4px)}

/* ============ 徽章 / 标签 ============ */
.badge-cat{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border-radius:12px;
  background:rgba(139,92,246,.16);
  border:1px solid rgba(139,92,246,.38);
  color:#C4AEFB;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
}
.badge-status{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  border:1px solid rgba(53,225,214,.38);
  background:rgba(53,225,214,.07);
  color:var(--brand-2);
  font-size:12.5px;
}
.badge-status::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--brand-2);
  box-shadow:0 0 8px rgba(53,225,214,.9);
}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--text-2);
  font-size:13px;
  transition:border-color .18s var(--ease),color .18s var(--ease),background .18s var(--ease);
}
.tag:hover{border-color:rgba(53,225,214,.5);color:var(--brand-2);background:rgba(53,225,214,.06)}
.time-num{color:var(--warm);font-family:var(--font-num);font-size:13px;letter-spacing:.02em}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,11,22,.72);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,11,22,.95);
  border-bottom-color:var(--line);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:72px;
}
.logo{display:inline-flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(135deg,#35E1D6 0%,#2B6BFF 100%);
  box-shadow:0 0 0 1px rgba(53,225,214,.35),0 8px 22px rgba(43,107,255,.4);
}
.logo-mark svg{width:22px;height:22px}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:16px;font-weight:800;letter-spacing:.02em;color:var(--text-1)}
.logo-text span{font-size:11.5px;color:var(--text-3);letter-spacing:.16em}
.nav-links{display:flex;align-items:center;gap:6px;flex:1;justify-content:center}
.nav-links a{
  position:relative;
  padding:10px 14px;
  font-size:14.5px;
  color:var(--text-2);
  border-radius:var(--r-xs);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand-2),var(--brand));
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s var(--ease);
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--text-1);font-weight:600}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-ghost-icon{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:38px;
  padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  color:var(--text-2);
  font-size:13.5px;
  transition:border-color .18s var(--ease),color .18s var(--ease),background .18s var(--ease);
}
.btn-ghost-icon:hover{border-color:rgba(53,225,214,.55);color:var(--brand-2);background:rgba(53,225,214,.06)}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:11px;
  background:var(--panel);
  border:1px solid var(--line);
  color:var(--text-1);
  font-size:17px;
}
.nav-panel-cta{display:none}

/* ============ 面包屑 ============ */
.crumb-bar{padding:18px 0 0}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--brand-2)}
.crumb .sep{color:rgba(255,255,255,.22)}
.crumb .current{color:var(--warm);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;
  margin-top:18px;
  padding:38px 0 42px;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background-image:linear-gradient(90deg,rgba(7,11,22,.96) 0%,rgba(7,11,22,.72) 62%,rgba(7,11,22,.88) 100%),url(/assets/images/backpic/back-2.png);
  background-size:cover;
  background-position:center;
}
.article-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(420px 240px at 88% 12%,rgba(43,107,255,.22),transparent 70%),
    radial-gradient(320px 220px at 6% 96%,rgba(139,92,246,.18),transparent 72%);
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:2}
.article-meta-top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:18px}
.article-title{
  font-size:clamp(24px,3.4vw,38px);
  line-height:1.32;
  font-weight:800;
  letter-spacing:-.01em;
  max-width:900px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 22px;
  margin-top:22px;
  font-size:13.5px;
  color:var(--text-3);
}
.article-meta .m-item{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--brand-2);font-size:12px}
.article-meta .m-time{color:var(--warm);font-family:var(--font-num)}

/* ============ 文章布局 ============ */
.article-shell{padding:56px 0 72px}
.article-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:44px;
  align-items:start;
}
.article-main{
  min-width:0;
  padding:32px 34px 40px;
  border-radius:var(--r-lg);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-card);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}

/* ============ 正文排版 ============ */
.article-body{
  max-width:820px;
  font-size:16px;
  line-height:1.9;
  color:var(--text-2);
  word-wrap:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em;color:var(--text-2)}
.article-body h2{
  position:relative;
  margin:48px 0 18px;
  padding-left:16px;
  font-size:clamp(20px,2.3vw,26px);
  line-height:1.42;
  color:var(--text-1);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.26em;bottom:.26em;
  width:4px;
  border-radius:4px;
  background:linear-gradient(180deg,var(--brand-2),var(--brand));
  box-shadow:0 0 16px rgba(53,225,214,.45);
}
.article-body h3{
  margin:34px 0 14px;
  font-size:19px;
  line-height:1.5;
  color:var(--text-1);
}
.article-body h4{
  margin:26px 0 10px;
  font-size:16.5px;
  color:var(--brand-2);
  letter-spacing:.02em;
}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0}
.article-body ul li,.article-body ol li{
  position:relative;
  margin:0 0 10px;
  padding-left:26px;
  color:var(--text-2);
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:4px;top:.72em;
  width:8px;height:8px;
  border-radius:2px;
  background:linear-gradient(135deg,var(--brand-2),var(--brand));
  box-shadow:0 0 10px rgba(53,225,214,.55);
}
.article-body ol{counter-reset:olc}
.article-body ol li{counter-increment:olc}
.article-body ol li::before{
  content:counter(olc);
  position:absolute;
  left:0;top:.35em;
  width:20px;height:20px;
  display:grid;place-items:center;
  border-radius:6px;
  font-family:var(--font-num);
  font-size:11.5px;
  font-weight:700;
  color:#04121A;
  background:linear-gradient(135deg,#35E1D6,#2B6BFF);
}
.article-body blockquote{
  margin:26px 0;
  padding:18px 22px;
  border-left:3px solid var(--brand-2);
  border-right:1px solid rgba(139,92,246,.35);
  border-radius:0 var(--r-md) var(--r-md) 0;
  background:linear-gradient(90deg,rgba(53,225,214,.09),rgba(139,92,246,.06));
  color:var(--text-1);
  font-size:15.5px;
  line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  border-radius:var(--r-md);
  border:1px solid var(--line);
  margin:22px 0 10px;
}
.article-body figure{margin:24px 0}
.article-body figcaption{
  font-size:13px;
  color:var(--text-3);
  text-align:center;
  padding-top:8px;
}
.article-body a{
  color:var(--brand-2);
  border-bottom:1px solid rgba(53,225,214,.4);
}
.article-body a:hover{border-bottom-color:var(--brand-2)}
.article-body table{
  width:100%;
  margin:24px 0;
  font-size:14.5px;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
}
.article-body thead th{
  background:var(--bg-700);
  color:var(--text-1);
  font-weight:600;
  text-align:left;
  padding:13px 16px;
  border-bottom:1px solid var(--line-strong);
}
.article-body tbody td{
  padding:12px 16px;
  border-bottom:1px solid var(--line);
  color:var(--text-2);
}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.025)}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body pre{
  margin:24px 0;
  padding:20px 22px;
  border-radius:var(--r-md);
  background:#050912;
  border:1px solid var(--line);
  overflow-x:auto;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13.5px;
  line-height:1.75;
  color:#9FF3EA;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13.5px;
  padding:2px 6px;
  border-radius:6px;
  background:rgba(53,225,214,.1);
  color:var(--brand-2);
}
.article-body pre code{background:none;padding:0;color:inherit}
.article-body hr{
  border:0;
  height:1px;
  margin:34px 0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent);
}

/* ============ 空态 ============ */
.empty-state{
  padding:56px 24px;
  text-align:center;
  border-radius:var(--r-md);
  border:1px dashed var(--line-strong);
  background:rgba(255,255,255,.02);
}
.empty-state .ei{
  width:56px;height:56px;
  margin:0 auto 16px;
  display:grid;place-items:center;
  border-radius:var(--r-md);
  border:1px solid var(--line-strong);
  color:var(--brand-2);
  font-size:20px;
}
.empty-state h3{font-size:18px;margin-bottom:8px}
.empty-state p{color:var(--text-2);font-size:14.5px;margin-bottom:20px}

/* ============ 标签区 / 翻页条 ============ */
.article-foot{margin-top:44px;padding-top:30px;border-top:1px solid var(--line)}
.article-foot h4{
  font-size:14px;
  color:var(--text-3);
  font-weight:600;
  letter-spacing:.08em;
  margin-bottom:14px;
}
.post-nav{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-top:30px;
}
.post-nav-item{
  display:flex;
  flex-direction:column;
  gap:6px;
  padding:18px 20px;
  border-radius:var(--r-md);
  background:var(--panel);
  border:1px solid var(--line);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.post-nav-item:hover{
  transform:translateY(-4px);
  border-color:rgba(53,225,214,.6);
  box-shadow:0 16px 34px rgba(2,6,18,.5);
}
.post-nav-item .pn-label{font-size:12.5px;color:var(--text-3);letter-spacing:.08em}
.post-nav-item .pn-title{font-size:15px;font-weight:600;color:var(--text-1)}
.post-nav-item.next{text-align:right;align-items:flex-end}

/* ============ 侧栏 ============ */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.side-card{
  padding:22px 22px 24px;
  border-radius:var(--r-lg);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.side-card h3{
  font-size:15px;
  margin-bottom:16px;
  display:flex;
  align-items:center;
  gap:9px;
}
.side-card h3::before{
  content:"";
  width:3px;height:15px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--brand-2),var(--brand));
}
.side-list li + li{margin-top:12px}
.side-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:11px 14px;
  border-radius:var(--r-xs);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  font-size:14px;
  color:var(--text-2);
  transition:border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.side-list a:hover{
  border-color:rgba(53,225,214,.5);
  color:var(--text-1);
  transform:translateX(3px);
}
.side-list a i{color:var(--brand-2);font-size:11px}
.side-note{
  font-size:13.5px;
  color:var(--text-2);
  line-height:1.85;
  margin-bottom:16px;
}
.side-status{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:12px 14px;
  border-radius:var(--r-xs);
  background:rgba(53,225,214,.06);
  border:1px solid rgba(53,225,214,.26);
  font-size:13px;
  color:var(--brand-2);
  margin-bottom:16px;
}
.side-status b{font-family:var(--font-num);color:var(--warm);font-weight:700}

/* ============ 相关推荐 ============ */
.rel-section{padding:0 0 96px}
.rel-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap}
.rel-head h2{font-size:clamp(22px,2.6vw,28px)}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;
  flex-direction:column;
  overflow:hidden;
  border-radius:var(--r-md);
  background:var(--panel);
  border:1px solid var(--line);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.rel-card:hover{
  transform:translateY(-4px);
  border-color:rgba(53,225,214,.6);
  box-shadow:0 20px 42px rgba(2,6,18,.55);
}
.rel-thumb{position:relative;aspect-ratio:4/3;overflow:hidden}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.05)}
.rel-thumb::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,22,0) 40%,rgba(7,11,22,.82) 100%);
}
.rel-thumb .badge-cat{position:absolute;left:14px;top:14px;z-index:2}
.rel-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:16px;line-height:1.55}
.rel-body p{font-size:13.8px;color:var(--text-2);line-height:1.8;flex:1}
.rel-meta{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-3)}

/* ============ 返回栏目 CTA ============ */
.back-band{
  padding:36px 34px;
  border-radius:var(--r-lg);
  border:1px solid rgba(53,225,214,.28);
  background:
    radial-gradient(420px 200px at 88% 10%,rgba(43,107,255,.24),transparent 70%),
    linear-gradient(100deg,rgba(53,225,214,.11),rgba(139,92,246,.10));
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  flex-wrap:wrap;
  margin-bottom:96px;
}
.back-band h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:8px}
.back-band p{color:var(--text-2);font-size:14.5px;max-width:560px}
.back-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:var(--bg-800);
  padding:72px 0 30px;
  margin-top:0;
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,225,214,.5),rgba(139,92,246,.4),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .logo{margin-bottom:18px}
.footer-brand p{color:var(--text-2);font-size:14px;line-height:1.9;max-width:330px}
.footer-col h4{
  font-size:14px;
  color:var(--text-1);
  letter-spacing:.06em;
  margin-bottom:18px;
  position:relative;
  padding-left:12px;
}
.footer-col h4::before{
  content:"";
  position:absolute;
  left:0;top:.35em;bottom:.35em;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--brand-2),var(--brand));
}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{color:var(--text-2);font-size:14px}
.footer-col ul a:hover{color:var(--brand-2)}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:var(--text-2);
  font-size:14px;
  margin-bottom:12px;
}
.footer-contact i{color:var(--brand-2);margin-top:5px;font-size:12px}
.footer-contact a{color:var(--brand-2);border-bottom:1px solid rgba(53,225,214,.35)}
.qr-box{
  width:104px;height:104px;
  margin-top:16px;
  display:grid;
  place-items:center;
  text-align:center;
  font-size:12px;
  line-height:1.5;
  color:var(--text-3);
  border-radius:var(--r-md);
  border:1px dashed var(--line-strong);
  background:
    repeating-linear-gradient(45deg,rgba(255,255,255,.035) 0 6px,transparent 6px 12px);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:24px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom a{color:var(--text-2)}
.footer-bottom a:hover{color:var(--brand-2)}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;
  right:22px;bottom:26px;
  width:46px;height:46px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid rgba(53,225,214,.4);
  background:rgba(12,19,36,.9);
  color:var(--brand-2);
  font-size:15px;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
  z-index:70;
  backdrop-filter:blur(10px);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{box-shadow:var(--glow)}

/* ============ 入场动效 ============ */
.fade-up{opacity:0;transform:translateY(14px);animation:fadeUp .6s var(--ease) forwards}
.fade-up.d1{animation-delay:.06s}
.fade-up.d2{animation-delay:.12s}
.fade-up.d3{animation-delay:.18s}
@keyframes fadeUp{to{opacity:1;transform:translateY(0)}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .fade-up{opacity:1;transform:none}
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .section{padding:72px 0}
  .nav-wrap{min-height:60px;position:relative}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .btn-ghost-icon,.nav-actions .btn-primary{display:none}
  .nav-links{
    position:fixed;
    top:60px;left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:0;
    padding:10px 20px 22px;
    background:rgba(9,14,28,.98);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
    box-shadow:0 26px 50px rgba(2,6,18,.6);
    opacity:0;
    visibility:hidden;
    transform:translateY(-12px);
    pointer-events:none;
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
  }
  .site-header.nav-open .nav-links{
    opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto;
  }
  .nav-links a{
    padding:15px 4px;
    font-size:16px;
    border-bottom:1px solid var(--line);
    border-radius:0;
    min-height:44px;
    display:flex;
    align-items:center;
  }
  .nav-links a::after{display:none}
  .nav-links a.is-active{color:var(--brand-2)}
  .nav-panel-cta{
    display:flex !important;
    margin-top:18px;
    justify-content:center;
    border-radius:12px !important;
    border-bottom:0 !important;
    background:linear-gradient(100deg,#2B6BFF 0%,#35E1D6 100%);
    color:#04121A !important;
    font-weight:700;
    box-shadow:0 0 0 1px rgba(53,225,214,.3),0 12px 30px rgba(43,107,255,.34);
  }
  .article-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .sidebar{position:static;top:auto}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .article-main{padding:26px 24px 32px}
}

@media (max-width:767px){
  .section{padding:56px 0}
  .container{padding:0 16px}
  .article-hero{padding:30px 0 34px;border-radius:var(--r-md)}
  .article-meta{gap:8px 16px;font-size:13px}
  .crumb .current{max-width:70vw}
  .article-shell{padding:38px 0 56px}
  .article-body h2{margin-top:38px}
  .post-nav{grid-template-columns:1fr}
  .post-nav-item.next{text-align:left;align-items:flex-start}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .back-band{padding:26px 22px;margin-bottom:56px}
  .back-actions .btn{width:100%}
  .rel-section{padding-bottom:56px}
  .site-footer{padding:52px 0 24px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-grid{gap:26px}
  .to-top{right:16px;bottom:18px;width:42px;height:42px}
}

@media (max-width:560px){
  .article-title{font-size:23px;line-height:1.36}
  .article-body{font-size:15.5px}
  .article-main{padding:22px 18px 26px}
  .logo-text strong{font-size:15px}
  .logo-text span{font-size:10.5px;letter-spacing:.12em}
  .btn{height:46px;padding:0 22px;font-size:14.5px}
  .back-band h2{font-size:19px}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --bg-900:#070B16;
  --bg-800:#0C1324;
  --bg-700:#121B30;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.075);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --brand:#2B6BFF;
  --brand-2:#35E1D6;
  --accent:#8B5CF6;
  --warm:#FFB020;
  --danger:#FF8A72;
  --text-1:#EAF0FB;
  --text-2:#A9B6CC;
  --text-3:#6F7D96;
  --glow-cyan:0 0 0 1px rgba(53,225,214,.35),0 10px 34px rgba(43,107,255,.34);
  --glow-soft:0 12px 32px rgba(43,107,255,.22);
  --shadow-card:0 18px 42px rgba(3,7,18,.55);
  --r-sm:8px;
  --r-md:12px;
  --r-card:16px;
  --r-lg:20px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Barlow","Rajdhani","DIN Alternate",ui-monospace,SFMono-Regular,monospace;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:68px 68px;
  opacity:.55;
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 70%);
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 70%);
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p{margin:0}
button{font-family:inherit;font-size:inherit}
input,select,textarea{font-family:inherit}
::selection{background:rgba(53,225,214,.28);color:#fff}

/* ============ 容器与板块 ============ */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:1;
}
.section{padding:96px 0;position:relative}
.section--tight{padding:76px 0}
.section--alt{background:var(--bg-800)}
.section-divider{
  height:1px;
  border:0;
  margin:0;
  background:linear-gradient(90deg,transparent,rgba(53,225,214,.22),rgba(139,92,246,.22),transparent);
}

/* ============ 通用排版 ============ */
.section-head{max-width:730px;margin-bottom:46px}
.kicker{
  display:inline-block;
  font-family:var(--font-num);
  font-size:12px;
  font-weight:600;
  letter-spacing:2.6px;
  color:var(--brand-2);
  text-transform:uppercase;
  margin-bottom:14px;
}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  font-weight:700;
  line-height:1.32;
  letter-spacing:-.3px;
  color:var(--text-1);
}
.section-head p{
  margin-top:16px;
  color:var(--text-2);
  font-size:15.5px;
  line-height:1.9;
}
.text-warm{color:var(--warm)}
.text-cyan{color:var(--brand-2)}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:0;
  cursor:pointer;
  font-weight:700;
  font-size:15px;
  letter-spacing:.4px;
  text-decoration:none;
  white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{
  height:48px;
  padding:0 28px;
  border-radius:var(--r-md);
  color:#04121A;
  background:linear-gradient(100deg,#2B6BFF 0%,#35E1D6 100%);
  background-size:180% 100%;
  box-shadow:var(--glow-cyan);
}
.btn-primary:hover{
  background-position:100% 0;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(53,225,214,.5),0 16px 40px rgba(43,107,255,.5);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(53,225,214,.4),0 6px 18px rgba(43,107,255,.35)}
.btn-primary:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px}
.btn-primary:disabled{filter:saturate(.4);box-shadow:none;cursor:not-allowed;transform:none}
.btn-sm{height:40px;padding:0 20px;font-size:14px;border-radius:10px}
.btn-lg{height:54px;padding:0 34px;font-size:16px}
.btn-ghost{
  height:48px;
  padding:0 26px;
  border-radius:var(--r-md);
  background:transparent;
  border:1px solid var(--line-strong);
  color:var(--text-1);
  font-weight:600;
}
.btn-ghost:hover{
  border-color:var(--brand-2);
  background:rgba(53,225,214,.08);
  transform:translateY(-2px);
}
.btn-ghost:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px}
.btn-ghost-icon{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  color:var(--text-1);
  font-size:13px;
  transition:border-color .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.btn-ghost-icon:hover{border-color:var(--brand-2);background:rgba(53,225,214,.08);color:var(--brand-2)}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--brand-2);
  font-size:14px;
  font-weight:600;
  padding-bottom:2px;
  border-bottom:1px dashed rgba(53,225,214,.5);
  transition:color .2s var(--ease),border-color .2s var(--ease),gap .2s var(--ease);
}
.link-arrow:hover{color:#7ff5ec;border-color:#7ff5ec;gap:12px}

/* ============ 顶部公告条 ============ */
.top-note{
  position:relative;
  z-index:70;
  background:linear-gradient(90deg,rgba(255,176,32,.12),rgba(255,176,32,.04));
  border-bottom:1px solid rgba(255,176,32,.18);
  font-size:13px;
  line-height:38px;
  color:var(--warm);
}
.top-note .container{display:flex;align-items:center;gap:12px}
.top-note i{font-size:12px}
.top-note span{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.top-note button{
  background:transparent;
  border:0;
  color:rgba(255,176,32,.7);
  cursor:pointer;
  padding:0 4px;
  line-height:38px;
  transition:color .2s var(--ease);
}
.top-note button:hover{color:#fff}
.top-note.is-hidden{display:none}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,11,22,.72);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid transparent;
  transition:background .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,11,22,.95);
  border-bottom-color:var(--line);
  box-shadow:0 12px 32px rgba(0,0,0,.4);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.logo{display:inline-flex;align-items:center;gap:11px}
.logo-mark{
  width:38px;height:38px;
  border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,#2B6BFF 0%,#35E1D6 100%);
  box-shadow:0 0 0 1px rgba(53,225,214,.35),0 8px 22px rgba(43,107,255,.42);
  flex:0 0 38px;
}
.logo-mark svg{width:22px;height:22px}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:16px;font-weight:800;letter-spacing:.6px;color:var(--text-1)}
.logo-text span{font-size:10.5px;letter-spacing:3.4px;color:var(--brand-2);font-family:var(--font-num)}

.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{
  position:relative;
  padding:10px 14px;
  font-size:14px;
  color:var(--text-2);
  border-radius:var(--r-sm);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:5px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand-2),var(--brand));
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s var(--ease);
}
.nav-links a:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--text-1);font-weight:600}
.nav-links a.is-active::after{transform:scaleX(1)}

.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-md);
  background:var(--panel);
  border:1px solid var(--line);
  color:var(--text-1);
  cursor:pointer;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--brand-2);background:var(--panel-2)}
.nav-toggle:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px}

/* ============ 移动端侧滑菜单 ============ */
.mobile-panel{
  position:fixed;
  inset:0;
  z-index:95;
  background:rgba(7,11,22,.72);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  opacity:0;
  visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.mobile-panel.is-open{opacity:1;visibility:visible}
.mobile-panel__inner{
  position:absolute;
  top:0;right:0;
  width:min(86vw,370px);
  height:100%;
  background:var(--bg-800);
  border-left:1px solid var(--line);
  padding:22px 22px 34px;
  display:flex;
  flex-direction:column;
  gap:6px;
  transform:translateX(100%);
  transition:transform .3s var(--ease);
  overflow-y:auto;
}
.mobile-panel.is-open .mobile-panel__inner{transform:none}
.mobile-close{
  align-self:flex-end;
  width:44px;height:44px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--panel);
  color:var(--text-1);
  cursor:pointer;
  margin-bottom:8px;
}
.mobile-close:hover{border-color:var(--brand-2);color:var(--brand-2)}
.mobile-link{
  display:flex;
  align-items:center;
  min-height:52px;
  padding:0 16px;
  border-radius:var(--r-md);
  border:1px solid transparent;
  color:var(--text-2);
  font-size:16px;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.mobile-link:hover{background:var(--panel);color:var(--text-1)}
.mobile-link.is-active{
  color:var(--brand-2);
  border-color:rgba(53,225,214,.35);
  background:rgba(53,225,214,.07);
}
.mobile-cta{margin-top:16px;width:100%}

/* ============ 分类页 Hero ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:52px 0 64px;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(90deg,rgba(7,11,22,.96) 0%,rgba(7,11,22,.78) 48%,rgba(7,11,22,.9) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center 30%;
  transform:scale(1.02);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(560px 300px at 12% 18%,rgba(53,225,214,.16),transparent 70%),
    radial-gradient(520px 300px at 86% 84%,rgba(139,92,246,.18),transparent 70%);
}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{
  font-size:clamp(26px,3.6vw,40px);
  font-weight:800;
  line-height:1.28;
  letter-spacing:-.4px;
  max-width:860px;
}
.hero-lead{
  max-width:660px;
  margin:18px 0 30px;
  color:var(--text-2);
  font-size:16px;
  line-height:1.9;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:26px;
  margin-top:34px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.hero-meta .mi{display:flex;align-items:baseline;gap:8px}
.hero-meta .mi b{
  font-family:var(--font-num);
  font-size:26px;
  font-weight:700;
  letter-spacing:-.5px;
  color:var(--brand-2);
}
.hero-meta .mi span{font-size:13px;color:var(--text-3)}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:22px;
}
.crumbs a{color:var(--text-2);transition:color .18s var(--ease)}
.crumbs a:hover{color:var(--brand-2)}
.crumbs .sep{color:var(--text-3);opacity:.55;font-family:var(--font-num)}
.crumbs .cur{color:var(--brand-2)}

/* ============ 眉标徽章 ============ */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 15px;
  border-radius:999px;
  background:rgba(53,225,214,.1);
  border:1px solid rgba(53,225,214,.32);
  color:var(--brand-2);
  font-size:12.5px;
  letter-spacing:1.2px;
  margin-bottom:20px;
}
.eyebrow i{font-size:11px}
.badge-cat{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border-radius:var(--r-md);
  background:rgba(139,92,246,.16);
  border:1px solid rgba(139,92,246,.34);
  color:#C4B0FF;
  font-size:12.5px;
  line-height:1.6;
}
.badge-state{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:4px 12px;
  border-radius:999px;
  border:1px solid rgba(53,225,214,.4);
  color:var(--brand-2);
  font-size:12.5px;
}
.badge-state::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:var(--brand-2);
  box-shadow:0 0 10px rgba(53,225,214,.9);
}

/* ============ 条目流 ============ */
.flow-list{display:flex;flex-direction:column;gap:0}
.flow-item{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,6.4fr);
  gap:44px;
  align-items:center;
  padding:38px 0;
}
.flow-item + .flow-item{border-top:1px solid var(--line)}
.flow-media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  background:var(--bg-700);
}
.flow-media img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.flow-media:hover img{transform:scale(1.04)}
.flow-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,11,22,0) 40%,rgba(7,11,22,.55) 100%);
  pointer-events:none;
}
.flow-body{min-width:0}
.flow-index{
  display:inline-block;
  font-family:var(--font-num);
  font-size:14px;
  font-weight:700;
  letter-spacing:3px;
  color:var(--warm);
  margin-bottom:10px;
}
.flow-body h3{
  font-size:20px;
  font-weight:600;
  line-height:1.5;
  margin-bottom:12px;
  color:var(--text-1);
}
.flow-body > p{
  color:var(--text-2);
  font-size:14.6px;
  line-height:1.9;
  margin-bottom:18px;
}
.ticks{display:flex;flex-direction:column;gap:10px;margin-bottom:20px}
.ticks li{
  position:relative;
  padding-left:26px;
  color:var(--text-2);
  font-size:14.4px;
  line-height:1.75;
}
.ticks li::before{
  content:"";
  position:absolute;
  left:2px;top:9px;
  width:12px;height:7px;
  border-left:2px solid var(--brand-2);
  border-bottom:2px solid var(--brand-2);
  transform:rotate(-45deg);
  box-shadow:0 0 12px rgba(53,225,214,.55);
}
.glass-bar{
  display:flex;
  align-items:flex-start;
  gap:11px;
  padding:15px 18px;
  border-radius:var(--r-md);
  background:var(--panel);
  border:1px solid var(--line);
  border-left:2px solid rgba(53,225,214,.55);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  color:var(--text-2);
  font-size:13.6px;
  line-height:1.75;
}
.glass-bar i{color:var(--brand-2);margin-top:5px;font-size:12px}

/* ============ 排查卡片 ============ */
.diag-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  position:relative;
  border-radius:var(--r-card);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  padding:26px;
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.card:hover{
  transform:translateY(-4px);
  border-color:var(--brand-2);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 18px 40px rgba(43,107,255,.22);
}
.card-icon{
  width:46px;height:46px;
  border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(43,107,255,.28),rgba(53,225,214,.18));
  border:1px solid rgba(53,225,214,.26);
  color:var(--brand-2);
  font-size:18px;
  margin-bottom:18px;
}
.card h3{font-size:17.5px;font-weight:600;margin-bottom:10px;color:var(--text-1)}
.card p{color:var(--text-2);font-size:14.4px;line-height:1.85}
.card .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{
  display:inline-flex;
  align-items:center;
  padding:3px 11px;
  border-radius:999px;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  color:var(--text-3);
  font-size:12px;
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-accordion{margin:0;border:0;background:transparent}
.faq-accordion .accordion-item{
  border:1px solid var(--line);
  background:var(--panel);
  border-radius:var(--r-card);
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-accordion .accordion-item:hover{border-color:rgba(53,225,214,.36)}
.faq-accordion .accordion-item.is-active{
  border-color:rgba(53,225,214,.55);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 12px 30px rgba(43,107,255,.2);
}
.faq-accordion .accordion-title{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:12px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--text-1);
  background:transparent;
  border:0;
  transition:color .2s var(--ease);
}
.faq-accordion .accordion-title::before{
  display:none;
  content:none;
}
.faq-accordion .accordion-title:hover{color:var(--brand-2)}
.faq-sign{
  position:relative;
  flex:0 0 16px;
  width:16px;height:16px;
}
.faq-sign::before,
.faq-sign::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--brand-2);
  border-radius:2px;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.faq-sign::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-sign::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.accordion-item.is-active .faq-sign::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.faq-accordion .accordion-content{
  padding:0 24px 22px;
  background:transparent;
  border:0;
  color:var(--text-2);
  font-size:14.6px;
  line-height:1.9;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid rgba(53,225,214,.22);
  background:
    radial-gradient(560px 260px at 8% 0%,rgba(53,225,214,.16),transparent 68%),
    radial-gradient(520px 280px at 96% 100%,rgba(139,92,246,.2),transparent 70%),
    var(--bg-800);
  padding:52px 48px;
}
.cta-band h2{font-size:clamp(23px,2.6vw,30px);font-weight:700;line-height:1.35;margin-bottom:14px}
.cta-band p{color:var(--text-2);font-size:15.4px;max-width:640px;margin-bottom:28px;line-height:1.9}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.cta-note{margin-top:20px;font-size:13px;color:var(--text-3)}

/* ============ 延伸阅读 ============ */
.read-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.read-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:24px;
  border-radius:var(--r-card);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.read-card:hover{
  transform:translateY(-4px);
  border-color:var(--brand-2);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 18px 40px rgba(43,107,255,.22);
}
.read-card h3{font-size:17px;font-weight:600;color:var(--text-1)}
.read-card p{font-size:14px;color:var(--text-2);line-height:1.8;flex:1}
.read-card .link-arrow{font-size:13.5px;align-self:flex-start}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:var(--bg-800);
  padding:70px 0 26px;
  margin-top:20px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,225,214,.3),rgba(139,92,246,.3),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:44px;
  padding-bottom:44px;
}
.footer-brand p{
  margin-top:18px;
  color:var(--text-2);
  font-size:14px;
  line-height:1.85;
  max-width:330px;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:var(--text-1);
  margin-bottom:18px;
  letter-spacing:.4px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col ul a{
  color:var(--text-2);
  font-size:14px;
  transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.footer-col ul a:hover{color:var(--brand-2);padding-left:5px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;color:var(--text-2);font-size:14px}
.footer-contact i{color:var(--brand-2);margin-top:5px;font-size:13px}
.footer-contact a{color:var(--brand-2);border-bottom:1px dashed rgba(53,225,214,.4)}
.footer-contact a:hover{border-bottom-style:solid}
.qr-box{
  margin-top:18px;
  width:96px;height:96px;
  border-radius:var(--r-md);
  border:1px dashed var(--line-strong);
  display:grid;
  place-items:center;
  text-align:center;
  font-size:12px;
  line-height:1.7;
  color:var(--text-3);
  background:var(--panel);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px 26px;
  justify-content:space-between;
  padding-top:24px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);border-bottom:1px dashed rgba(255,255,255,.16)}
.footer-bottom a:hover{color:var(--brand-2);border-color:rgba(53,225,214,.5)}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;
  right:24px;bottom:28px;
  width:48px;height:48px;
  border-radius:14px;
  border:1px solid var(--line-strong);
  background:rgba(12,19,36,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  color:var(--brand-2);
  font-size:16px;
  cursor:pointer;
  z-index:75;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .24s var(--ease),visibility .24s var(--ease),transform .24s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.to-top.is-show{opacity:1;visibility:visible;transform:none}
.to-top:hover{border-color:var(--brand-2);box-shadow:var(--glow-cyan)}
.to-top:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px}

/* ============ 入场动效 ============ */
.fade-up{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
.fade-up.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .section{padding:72px 0}
  .section--tight{padding:60px 0}
  .nav-links{display:none}
  .nav-toggle{display:grid;place-items:center}
  .btn-ghost-icon{display:none}
  .nav-wrap{height:64px}
  .logo-mark{width:34px;height:34px;flex:0 0 34px}
  .logo-mark svg{width:20px;height:20px}
  .flow-item{grid-template-columns:minmax(0,1fr);gap:22px;padding:32px 0}
  .flow-media{max-width:640px}
  .diag-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .read-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
  .cta-band{padding:42px 32px}
}

@media (max-width:767px){
  .page-hero{padding:40px 0 48px}
  .hero-meta{gap:20px}
  .hero-meta .mi b{font-size:22px}
  .cta-band{padding:34px 22px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
}

@media (max-width:639px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .diag-grid{grid-template-columns:minmax(0,1fr)}
  .read-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:30px}
  .footer-bottom{flex-direction:column;gap:10px}
  .nav-actions .btn-sm{padding:0 16px;height:38px;font-size:13px}
  .to-top{right:16px;bottom:20px;width:44px;height:44px}
  .faq-accordion .accordion-title{padding:12px 18px;font-size:15px}
  .faq-accordion .accordion-content{padding:0 18px 18px}
}

@media (max-width:559px){
  body{font-size:15.5px}
  .hero-lead{font-size:15px}
  .card{padding:22px}
  .flow-body h3{font-size:18.5px}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .fade-up{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
/* ============ 1. 设计变量 ============ */
:root{
  --bg-900:#070B16;
  --bg-800:#0C1324;
  --bg-700:#121B30;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --brand:#2B6BFF;
  --brand-2:#35E1D6;
  --accent:#8B5CF6;
  --warm:#FFB020;
  --text-1:#EAF0FB;
  --text-2:#A9B6CC;
  --text-3:#6F7D96;
  --glow:0 0 0 1px rgba(53,225,214,.35), 0 10px 34px rgba(43,107,255,.34);
  --glow-soft:0 8px 26px rgba(43,107,255,.24);
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
  --sec-pad:96px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ============ 2. Reset 补充 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-1);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand-2);outline-offset:2px;border-radius:6px;
}
button{font-family:inherit;cursor:pointer;}
table{border-collapse:collapse;width:100%;}

/* Foundation 覆盖 */
body,button,input,select,textarea{font-family:var(--sans);}
a{color:var(--text-1);}
a:hover{color:var(--brand-2);}
.grid-x{margin-left:0;margin-right:0;}

/* ============ 3. 容器 ============ */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}

/* ============ 4. 背景装饰 ============ */
.bg-deco{position:fixed;inset:0;pointer-events:none;z-index:0;overflow:hidden;}
.bg-deco .orb{
  position:absolute;border-radius:50%;
  filter:blur(0);
  opacity:.5;
}
.orb-a{width:520px;height:520px;top:-160px;left:-140px;
  background:radial-gradient(circle at center,rgba(43,107,255,.28),transparent 68%);}
.orb-b{width:460px;height:460px;top:38%;right:-180px;
  background:radial-gradient(circle at center,rgba(139,92,246,.22),transparent 70%);}
.orb-c{width:380px;height:380px;bottom:-120px;left:26%;
  background:radial-gradient(circle at center,rgba(53,225,214,.18),transparent 70%);}
.bg-grid{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:76px 76px;
  opacity:.05;
  mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
}

/* ============ 5. 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,22,.62);
  backdrop-filter:blur(16px) saturate(130%);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,11,22,.9);
  border-bottom-color:var(--line);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;height:72px;
}
.logo{display:inline-flex;align-items:center;gap:11px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand-2) 0%,var(--brand) 100%);
  box-shadow:0 6px 20px rgba(43,107,255,.4),inset 0 1px 0 rgba(255,255,255,.4);
}
.logo-mark svg{width:22px;height:22px;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text strong{font-size:17px;font-weight:800;letter-spacing:.02em;color:var(--text-1);}
.logo-text span{font-size:11px;color:var(--brand-2);letter-spacing:.22em;}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{
  position:relative;font-size:15px;color:var(--text-2);
  padding:6px 2px;transition:color .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:linear-gradient(90deg,var(--brand-2),var(--brand));
  border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--text-1);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  background:var(--panel);border:1px solid var(--line);
  color:var(--text-1);font-size:17px;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--brand-2);background:var(--panel-2);}

/* ============ 6. 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border:0;
  border-radius:var(--r-md);
  font-size:15px;font-weight:700;letter-spacing:.02em;
  white-space:nowrap;position:relative;overflow:hidden;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),opacity .18s var(--ease);
}
.btn-primary{
  background:linear-gradient(100deg,#2B6BFF 0%,#35E1D6 140%);
  color:#04121A;
  box-shadow:0 0 0 1px rgba(53,225,214,.35),0 10px 30px rgba(43,107,255,.32);
}
.btn-primary::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,0) 20%,rgba(255,255,255,.45) 50%,rgba(255,255,255,0) 80%);
  transform:translateX(-120%);
  transition:transform .55s var(--ease);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(53,225,214,.6),0 16px 40px rgba(43,107,255,.46);color:#04121A;}
.btn-primary:hover::before{transform:translateX(120%);}
.btn-primary:active{transform:translateY(1px);}
.btn-primary:disabled,.btn-primary.is-disabled{
  filter:saturate(.4);box-shadow:none;opacity:.65;transform:none;cursor:not-allowed;
}
.btn-ghost{
  background:transparent;color:var(--text-1);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(6px);
}
.btn-ghost:hover{
  background:var(--panel-2);
  border-color:var(--brand-2);
  color:var(--text-1);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;border-radius:var(--r-md);}
.btn-lg{height:54px;padding:0 34px;font-size:16px;}
.btn-block{width:100%;}
.btn-ghost-icon{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 18px;border-radius:var(--r-pill);
  font-size:14px;color:var(--text-2);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.btn-ghost-icon i{color:var(--brand-2);}
.btn-ghost-icon:hover{color:var(--text-1);border-color:var(--brand-2);background:var(--panel-2);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-2);font-size:14px;font-weight:600;
  text-decoration:underline;text-decoration-color:rgba(53,225,214,.4);
  text-underline-offset:4px;text-decoration-thickness:1px;
  transition:gap .2s var(--ease),text-decoration-color .2s var(--ease);
}
.link-arrow:hover{gap:11px;text-decoration-color:var(--brand-2);}

/* ============ 7. 徽章 / 标签 ============ */
.tag{
  display:inline-flex;align-items:center;gap:7px;
  height:30px;padding:0 14px;border-radius:var(--r-md);
  font-size:13px;letter-spacing:.04em;
  background:rgba(139,92,246,.14);
  border:1px solid rgba(139,92,246,.35);
  color:#C9B8FF;
}
.tag-cyan{
  background:rgba(53,225,214,.1);
  border-color:rgba(53,225,214,.35);
  color:#8CF3EA;
}
.state{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;border:1px solid var(--line-strong);color:var(--text-2);
  background:rgba(255,255,255,.03);
}
.state .dot{width:7px;height:7px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 10px var(--brand-2);}
.state.is-wait .dot{background:var(--warm);box-shadow:0 0 10px var(--warm);}
.time-note{color:var(--warm);font-size:13px;font-family:var(--mono);letter-spacing:.03em;}
.chip{
  display:inline-flex;align-items:center;height:28px;padding:0 13px;
  border-radius:var(--r-pill);font-size:13px;color:var(--text-3);
  background:rgba(255,255,255,.045);border:1px solid var(--line);
}

/* ============ 8. 面包屑 ============ */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:9px;
  font-size:13px;color:var(--text-3);
}
.breadcrumb a{color:var(--text-2);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--brand-2);}
.breadcrumb .sep{color:var(--text-3);opacity:.6;}
.breadcrumb .current{color:var(--brand-2);}

/* ============ 9. Hero（分类页简化版） ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:52px 0 66px;
  background:
    linear-gradient(90deg,rgba(7,11,22,.94) 0%,rgba(7,11,22,.72) 55%,rgba(7,11,22,.6) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 82% 18%,rgba(53,225,214,.16),transparent 52%),
             radial-gradient(circle at 8% 96%,rgba(139,92,246,.16),transparent 55%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.hero-inner{max-width:820px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  height:32px;padding:0 15px;margin:20px 0 18px;
  border-radius:var(--r-pill);
  background:rgba(53,225,214,.1);
  border:1px solid rgba(53,225,214,.34);
  color:#8CF3EA;font-size:13px;letter-spacing:.06em;
}
.page-hero h1{
  font-size:clamp(27px,3.9vw,40px);
  line-height:1.28;font-weight:800;letter-spacing:-.01em;
  margin-bottom:18px;
}
.page-hero h1 .hl{
  background:linear-gradient(100deg,var(--brand-2),var(--brand) 130%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{
  font-size:16px;line-height:1.9;color:var(--text-2);
  max-width:680px;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;
  padding-top:24px;border-top:1px solid var(--line);
}
.hero-meta div{display:flex;flex-direction:column;gap:2px;}
.hero-meta .num{
  font-family:var(--mono);font-size:26px;font-weight:700;
  letter-spacing:-.02em;color:var(--text-1);
}
.hero-meta .num em{font-style:normal;font-size:14px;color:var(--brand-2);margin-left:3px;}
.hero-meta .lbl{font-size:13px;color:var(--text-3);}

/* ============ 10. 板块通用 ============ */
.section{padding:var(--sec-pad) 0;position:relative;z-index:1;}
.section-alt{background:var(--bg-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:46px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-kicker{
  display:inline-block;font-size:13px;letter-spacing:.2em;
  color:var(--brand-2);text-transform:uppercase;margin-bottom:14px;
}
.section-head h2{
  font-size:clamp(23px,3vw,32px);line-height:1.32;font-weight:700;
  letter-spacing:-.01em;margin-bottom:14px;
}
.section-head p{color:var(--text-2);font-size:15.5px;line-height:1.9;}
.divider-line{
  height:1px;border:0;
  background:linear-gradient(90deg,transparent,rgba(53,225,214,.28),rgba(139,92,246,.24),transparent);
}

/* ============ 11. 步骤带 ============ */
.steps-band{
  position:relative;
  display:grid;grid-template-columns:repeat(5,minmax(0,1fr));
  gap:18px;
}
.steps-band::before{
  content:"";position:absolute;left:4%;right:4%;top:23px;height:1px;
  background:linear-gradient(90deg,rgba(53,225,214,.55),rgba(43,107,255,.4),rgba(139,92,246,.45));
  opacity:.7;
}
.step-item{position:relative;z-index:1;}
.step-dot{
  width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;
  font-family:var(--mono);font-size:15px;font-weight:700;color:#04121A;
  background:linear-gradient(135deg,var(--brand-2),var(--brand));
  box-shadow:0 0 0 6px rgba(7,11,22,.9),0 8px 22px rgba(43,107,255,.35);
}
.step-card{
  margin-top:20px;height:calc(100% - 66px);
  padding:22px 20px;
  border-radius:var(--r-lg);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.step-card:hover{transform:translateY(-4px);border-color:var(--brand-2);box-shadow:var(--glow-soft);}
.step-card h3{font-size:17px;font-weight:600;margin-bottom:10px;}
.step-card p{font-size:14px;color:var(--text-2);line-height:1.8;}

/* ============ 12. 数据表 ============ */
.table-wrap{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--panel);
  overflow-x:auto;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
table.param-table{min-width:720px;}
.param-table thead th{
  background:rgba(255,255,255,.06);
  color:var(--text-1);font-size:13.5px;font-weight:600;
  letter-spacing:.06em;text-align:left;
  padding:16px 20px;
  border-bottom:1px solid var(--line-strong);
  white-space:nowrap;
}
.param-table tbody td{
  padding:17px 20px;font-size:14.5px;color:var(--text-2);
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.param-table tbody tr:last-child td{border-bottom:0;}
.param-table tbody tr:nth-child(even){background:rgba(255,255,255,.022);}
.param-table tbody tr:hover{background:rgba(53,225,214,.045);}
.param-table .cell-line{color:var(--text-1);font-weight:600;}
.param-table .cell-num{font-family:var(--mono);color:var(--warm);letter-spacing:.02em;}
.table-note{
  margin-top:16px;font-size:13.5px;color:var(--text-3);
}

/* ============ 13. 内嵌 CTA 条 ============ */
.inline-cta{
  margin-top:52px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  flex-wrap:wrap;
  padding:28px 32px;
  border-radius:var(--r-xl);
  background:linear-gradient(100deg,rgba(43,107,255,.18),rgba(53,225,214,.1) 65%,rgba(139,92,246,.14));
  border:1px solid rgba(53,225,214,.28);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.inline-cta h3{font-size:19px;font-weight:700;margin-bottom:6px;}
.inline-cta p{font-size:14.5px;color:var(--text-2);}
.inline-cta .actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 14. 图文要点区 ============ */
.split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:44px;align-items:center;}
.split-media{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:0 22px 48px rgba(0,0,0,.42);
  aspect-ratio:4/3;
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,22,0) 45%,rgba(7,11,22,.62));
}
.split-body h3{font-size:21px;font-weight:700;margin-bottom:14px;}
.split-body > p{color:var(--text-2);font-size:15px;margin-bottom:22px;}
.check-list{display:flex;flex-direction:column;gap:14px;}
.check-list li{
  display:flex;gap:12px;font-size:15px;color:var(--text-2);line-height:1.75;
}
.check-list li i{
  color:var(--brand-2);font-size:14px;margin-top:7px;
  filter:drop-shadow(0 0 6px rgba(53,225,214,.5));
}
.check-list li strong{color:var(--text-1);font-weight:600;}
.glass-note{
  margin-top:26px;padding:16px 20px;
  border-radius:var(--r-md);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-left:3px solid var(--brand-2);
  font-size:14px;color:var(--text-2);
}

/* ============ 15. FAQ ============ */
.faq-wrap{max-width:900px;}
.accordion{
  background:transparent;border:0;
  display:flex;flex-direction:column;gap:14px;
}
.accordion .accordion-item{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--panel);
  overflow:hidden;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.accordion .accordion-item.is-active{
  border-color:rgba(53,225,214,.45);
  box-shadow:0 12px 30px rgba(43,107,255,.18),inset 0 1px 0 rgba(255,255,255,.08);
}
.accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:16px 24px;
  font-size:16px;font-weight:600;color:var(--text-1);
  border:0;background:transparent;
}
.accordion .accordion-title:hover{color:var(--brand-2);}
.accordion .accordion-title::before{
  content:"+";
  position:absolute;right:24px;
  font-family:var(--mono);font-size:20px;color:var(--brand-2);
  transition:transform .24s var(--ease);
}
.accordion .accordion-item.is-active .accordion-title::before{content:"−";}
.accordion .accordion-title{padding-right:60px;position:relative;}
.accordion .accordion-content{
  border:0;background:transparent;
  padding:0 24px 22px;color:var(--text-2);font-size:14.8px;line-height:1.9;
}

/* ============ 16. 表单 ============ */
.form-panel{
  padding:34px;
  border-radius:var(--r-xl);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.field{margin-bottom:18px;}
.field label{
  display:block;font-size:13.5px;color:var(--text-2);
  margin-bottom:8px;letter-spacing:.04em;
}
.field input,.field select{
  width:100%;height:48px;padding:0 16px;
  border-radius:var(--r-md);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--text-1);font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field input::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--brand-2);
  box-shadow:0 0 0 3px rgba(53,225,214,.16);
  background:rgba(255,255,255,.08);
}
.field select option{background:var(--bg-700);color:var(--text-1);}
.field.has-error input,.field.has-error select{
  border-color:#FF7A59;box-shadow:0 0 0 3px rgba(255,122,89,.14);
}
.field .err{
  display:none;margin-top:7px;font-size:13px;color:#FF9C80;
}
.field.has-error .err{display:block;}
.form-tip{font-size:13px;color:var(--text-3);margin-top:14px;}
.form-ok{
  display:none;margin-top:16px;padding:13px 18px;
  border-radius:var(--r-md);
  background:rgba(53,225,214,.1);
  border:1px solid rgba(53,225,214,.35);
  color:#8CF3EA;font-size:14px;
}
.form-ok.is-show{display:block;}

/* ============ 17. CTA 终局区 ============ */
.cta-band{
  position:relative;overflow:hidden;
  padding:72px 0;
  background:
    radial-gradient(circle at 18% 30%,rgba(43,107,255,.28),transparent 58%),
    radial-gradient(circle at 84% 76%,rgba(53,225,214,.2),transparent 58%),
    var(--bg-700);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:60px 60px;opacity:.05;
}
.cta-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;
}
.cta-copy h2{font-size:clamp(23px,3vw,32px);font-weight:700;line-height:1.34;margin-bottom:16px;}
.cta-copy p{color:var(--text-2);font-size:15.5px;margin-bottom:26px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 18. 延伸阅读 ============ */
.read-strip{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.read-card{
  display:flex;align-items:center;gap:16px;
  padding:20px 22px;
  border-radius:var(--r-lg);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.read-card:hover{transform:translateY(-4px);border-color:var(--brand-2);box-shadow:var(--glow-soft);}
.read-card .ico{
  width:44px;height:44px;flex-shrink:0;border-radius:var(--r-md);
  display:grid;place-items:center;
  background:rgba(53,225,214,.1);
  border:1px solid rgba(53,225,214,.3);
  color:var(--brand-2);font-size:16px;
}
.read-card h4{font-size:15.5px;font-weight:600;margin-bottom:4px;color:var(--text-1);}
.read-card p{font-size:13.5px;color:var(--text-3);}
.read-card .go{margin-left:auto;color:var(--text-3);transition:transform .2s var(--ease),color .2s var(--ease);}
.read-card:hover .go{transform:translateX(5px);color:var(--brand-2);}

/* ============ 19. 页脚 ============ */
.site-footer{
  position:relative;z-index:1;
  background:var(--bg-800);
  padding-top:66px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,225,214,.4),rgba(139,92,246,.34),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:44px;padding-bottom:50px;
}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.9;max-width:320px;}
.footer-col h4{
  font-size:14px;font-weight:600;color:var(--text-1);
  letter-spacing:.08em;margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col ul li a{font-size:14px;color:var(--text-3);transition:color .2s var(--ease);}
.footer-col ul li a:hover{color:var(--brand-2);}
.footer-contact li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:var(--text-3);
}
.footer-contact li i{color:var(--brand-2);margin-top:6px;font-size:13px;}
.footer-contact a{color:var(--text-2);border-bottom:1px dashed rgba(255,255,255,.2);}
.footer-contact a:hover{color:var(--brand-2);}
.qr-box{
  margin-top:18px;width:92px;height:92px;border-radius:var(--r-md);
  display:grid;place-items:center;text-align:center;
  font-size:12px;color:var(--text-3);line-height:1.6;
  background:rgba(255,255,255,.04);
  border:1px dashed var(--line-strong);
}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding:22px 0 30px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-2);}
.footer-bottom a:hover{color:var(--brand-2);}

/* ============ 20. 移动端抽屉 ============ */
.nav-drawer{
  position:fixed;top:0;right:0;z-index:90;
  width:min(88vw,360px);height:100%;
  background:var(--bg-800);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .3s var(--ease);
  display:flex;flex-direction:column;
  padding:20px;
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-close{
  width:42px;height:42px;border-radius:var(--r-md);
  background:var(--panel);border:1px solid var(--line);
  color:var(--text-1);font-size:17px;
}
.drawer-close:hover{border-color:var(--brand-2);}
.drawer-links{display:flex;flex-direction:column;gap:6px;}
.drawer-links a{
  min-height:52px;display:flex;align-items:center;
  padding:0 16px;border-radius:var(--r-md);
  font-size:16px;color:var(--text-2);
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.drawer-links a:hover{background:var(--panel);color:var(--text-1);border-color:var(--line);}
.drawer-links a.is-active{color:var(--brand-2);background:rgba(53,225,214,.08);border-color:rgba(53,225,214,.3);}
.drawer-cta{margin-top:auto;padding-top:26px;}
.drawer-mask{
  position:fixed;inset:0;z-index:80;
  background:rgba(4,7,14,.66);
  backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;
  transition:opacity .28s var(--ease),visibility .28s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ============ 21. 回到顶部 ============ */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:70;
  width:46px;height:46px;border-radius:var(--r-md);
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121A;font-size:16px;border:0;
  box-shadow:0 10px 26px rgba(43,107,255,.4);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s var(--ease);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{transform:translateY(-3px);}

/* ============ 22. 入场动效 ============ */
.fade-up{opacity:0;transform:translateY(16px);}
.fade-up.is-in{
  opacity:1;transform:translateY(0);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
.fade-up.d1.is-in{transition-delay:.06s;}
.fade-up.d2.is-in{transition-delay:.12s;}
.fade-up.d3.is-in{transition-delay:.18s;}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .fade-up{opacity:1;transform:none;}
}

/* ============ 23. 响应式 ============ */
@media screen and (max-width:1023px){
  :root{--sec-pad:72px;}
  .nav-links{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .btn-ghost-icon{display:none;}
  .split{grid-template-columns:1fr;gap:32px;}
  .steps-band{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
  .steps-band::before{display:none;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .read-strip{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}

@media screen and (max-width:767px){
  .page-hero{padding:38px 0 52px;}
  .hero-meta{gap:20px;}
  .inline-cta{padding:24px 22px;flex-direction:column;align-items:flex-start;}
  .read-strip{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .form-panel{padding:24px 20px;}
}

@media screen and (max-width:639px){
  :root{--sec-pad:56px;}
  .container{padding:0 16px;}
  .steps-band{grid-template-columns:1fr;}
  .step-card{height:auto;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .hero-actions .btn{width:100%;}
  .hero-meta{justify-content:space-between;gap:14px;}
  .hero-meta .num{font-size:22px;}
  .read-card{padding:16px 18px;}
}

@media screen and (max-width:560px){
  .logo-text strong{font-size:15px;}
  .logo-text span{font-size:10px;letter-spacing:.18em;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:21px;}
  .page-hero h1{font-size:24px;}
  .hero-lead{font-size:15px;}
  .step-card{padding:18px 16px;}
  .cta-band{padding:56px 0;}
  .to-top{right:14px;bottom:18px;width:42px;height:42px;}
}

/* roulang page: category3 */
:root{
  --bg-900:#070B16;
  --bg-800:#0C1324;
  --bg-700:#121B30;
  --panel:rgba(255,255,255,0.045);
  --panel-2:rgba(255,255,255,0.075);
  --line:rgba(255,255,255,0.09);
  --line-strong:rgba(255,255,255,0.16);
  --brand:#2B6BFF;
  --brand-2:#35E1D6;
  --accent:#8B5CF6;
  --warm:#FFB020;
  --danger:#FF6B6B;
  --text-1:#EAF0FB;
  --text-2:#A9B6CC;
  --text-3:#6F7D96;
  --glow:0 0 0 1px rgba(53,225,214,.35), 0 10px 34px rgba(43,107,255,.34);
  --glow-soft:0 0 0 1px rgba(53,225,214,.22), 0 8px 24px rgba(43,107,255,.22);
  --r-sm:8px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --container:1200px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-num:"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  background:var(--bg-900);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 420px at 12% -6%, rgba(43,107,255,.20), transparent 68%),
    radial-gradient(560px 360px at 92% 4%, rgba(139,92,246,.16), transparent 70%),
    radial-gradient(520px 380px at 60% 108%, rgba(53,225,214,.10), transparent 72%);
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-2);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:#7ff3ea}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font-family:inherit}
::selection{background:rgba(53,225,214,.28);color:#fff}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;border-radius:4px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:1;
}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(7,11,22,.72);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,11,22,.95);
  border-bottom-color:var(--line);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:22px;
  height:72px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.logo-mark{
  width:36px;
  height:36px;
  border-radius:12px;
  display:grid;
  place-items:center;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 100%);
  box-shadow:var(--glow-soft);
  flex-shrink:0;
}
.logo-mark svg{width:21px;height:21px}
.logo-text{display:flex;flex-direction:column;line-height:1.08}
.logo-text strong{
  font-size:16px;
  font-weight:800;
  letter-spacing:.2px;
  color:var(--text-1);
}
.logo-text span{
  font-size:11px;
  letter-spacing:3px;
  color:var(--text-3);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:6px;
}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 13px;
  border-radius:10px;
  color:var(--text-2);
  font-size:14.5px;
  white-space:nowrap;
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:13px;
  right:13px;
  bottom:5px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{
  color:#fff;
  background:var(--panel);
}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.btn-ghost-icon{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  color:var(--text-1);
  font-size:14px;
  white-space:nowrap;
  transition:border-color .18s var(--ease),background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.btn-ghost-icon i{font-size:13px;color:var(--brand-2)}
.btn-ghost-icon:hover{
  border-color:var(--brand-2);
  background:var(--panel);
  color:#fff;
  transform:translateY(-1px);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:12px;
  font-size:15.5px;
  font-weight:700;
  letter-spacing:.3px;
  white-space:nowrap;
  border:1px solid transparent;
  transition:transform .18s var(--ease),box-shadow .22s var(--ease),background-position .4s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.btn-sm{height:42px;padding:0 22px;font-size:14.5px}
.btn-primary{
  background-image:linear-gradient(100deg,#2B6BFF 0%,#35E1D6 55%,#2B6BFF 100%);
  background-size:200% 100%;
  background-position:0% 50%;
  color:#04121A;
  box-shadow:var(--glow);
}
.btn-primary:hover{
  background-position:100% 50%;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(53,225,214,.5),0 16px 42px rgba(43,107,255,.46);
  color:#04121A;
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(53,225,214,.4),0 6px 18px rgba(43,107,255,.3)}
.btn-primary:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px}
.btn-primary:disabled{filter:saturate(.4);box-shadow:none;cursor:not-allowed}
.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text-1);
}
.btn-ghost:hover{
  background:var(--panel);
  border-color:var(--brand-2);
  color:#fff;
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0)}
.link-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand-2);
  font-size:14.5px;
  font-weight:600;
  padding-bottom:2px;
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),gap .2s var(--ease);
}
.link-text:hover{
  border-bottom-color:rgba(53,225,214,.6);
  gap:10px;
  color:#7ff3ea;
}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  color:var(--text-1);
  font-size:17px;
  align-items:center;
  justify-content:center;
}
.nav-toggle:hover{border-color:var(--brand-2);background:var(--panel)}

/* 移动侧滑面板 */
.nav-mask{
  position:fixed;
  inset:0;
  background:rgba(4,8,18,.68);
  backdrop-filter:blur(3px);
  opacity:0;
  visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);
  z-index:94;
}
.nav-mask.is-open{opacity:1;visibility:visible}
.nav-panel{
  position:fixed;
  top:0;
  right:0;
  width:min(86vw,340px);
  height:100%;
  z-index:96;
  background:var(--bg-800);
  border-left:1px solid var(--line);
  transform:translateX(103%);
  transition:transform .3s var(--ease);
  padding:78px 22px 28px;
  overflow-y:auto;
  display:flex;
  flex-direction:column;
  gap:6px;
}
.nav-panel.is-open{transform:translateX(0)}
.nav-panel a{
  display:flex;
  align-items:center;
  min-height:52px;
  padding:0 14px;
  border-radius:12px;
  color:var(--text-1);
  font-size:16px;
  border:1px solid transparent;
}
.nav-panel a:hover{background:var(--panel);border-color:var(--line)}
.nav-panel a.is-active{
  background:var(--panel);
  border-color:rgba(53,225,214,.32);
  color:#fff;
}
.nav-panel .btn{
  margin-top:18px;
  width:100%;
  height:50px;
}
.nav-panel-close{
  position:absolute;
  top:18px;
  right:18px;
  width:42px;
  height:42px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  color:var(--text-1);
  font-size:17px;
}
.nav-panel-close:hover{border-color:var(--brand-2);background:var(--panel)}

/* ============ 通用板块 ============ */
main{position:relative;z-index:1}
.section{padding:96px 0;position:relative}
.section-divider{
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.14),transparent);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
}
.section-head .st{max-width:760px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  border-radius:var(--r-pill);
  border:1px solid rgba(53,225,214,.32);
  background:rgba(53,225,214,.07);
  color:var(--brand-2);
  font-size:12.5px;
  letter-spacing:1.2px;
  margin-bottom:16px;
}
.eyebrow .dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--brand-2);
  box-shadow:0 0 10px rgba(53,225,214,.9);
}
.h2{
  font-size:clamp(24px,3vw,34px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:.2px;
  color:#fff;
}
.section-sub{
  margin-top:14px;
  color:var(--text-2);
  font-size:15.5px;
  max-width:720px;
}
.h3{
  font-size:20px;
  font-weight:600;
  line-height:1.5;
  color:#fff;
}

/* ============ 分类 Hero ============ */
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  font-size:13.5px;
  color:var(--text-3);
  margin-bottom:22px;
  position:relative;
  z-index:3;
}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--brand-2)}
.breadcrumb .sep{color:rgba(255,255,255,.24)}
.breadcrumb .current{color:var(--warm)}
.page-hero{
  position:relative;
  overflow:hidden;
  min-height:390px;
  display:flex;
  align-items:center;
  padding:56px 0 60px;
  border-bottom:1px solid var(--line);
}
.page-hero .hero-bg{
  position:absolute;
  inset:0;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;
  background-position:center 38%;
  filter:saturate(112%);
  z-index:0;
}
.page-hero .hero-mask{
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(7,11,22,.97) 0%,rgba(7,11,22,.86) 48%,rgba(7,11,22,.7) 100%);
  z-index:1;
}
.page-hero .hero-mask::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(520px 300px at 18% 30%, rgba(53,225,214,.14), transparent 70%),
    radial-gradient(460px 300px at 82% 78%, rgba(139,92,246,.16), transparent 72%);
}
.page-hero .hero-inner{
  position:relative;
  z-index:2;
  max-width:820px;
}
.page-hero h1{
  font-size:clamp(27px,3.7vw,42px);
  line-height:1.28;
  font-weight:800;
  letter-spacing:.4px;
  color:#fff;
  margin-bottom:18px;
}
.page-hero h1 .hl{
  background:linear-gradient(100deg,#2B6BFF 0%,#35E1D6 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.page-hero .lead{
  color:var(--text-2);
  font-size:16.5px;
  line-height:1.9;
  max-width:660px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-meta{
  margin-top:26px;
  display:flex;
  flex-wrap:wrap;
  gap:26px;
}
.hero-meta .hm{display:flex;flex-direction:column;gap:2px}
.hero-meta .hm b{
  font-family:var(--font-num);
  font-size:26px;
  font-weight:700;
  letter-spacing:-.5px;
  color:#fff;
}
.hero-meta .hm b em{font-style:normal;color:var(--brand-2);font-size:15px;margin-left:3px}
.hero-meta .hm span{font-size:12.5px;color:var(--text-3);letter-spacing:1px}

/* ============ 卡片基础 ============ */
.card{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px;
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  overflow:hidden;
}
.card:hover{
  transform:translateY(-4px);
  border-color:var(--brand-2);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 14px 40px rgba(43,107,255,.24);
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:12px;
  font-size:12.5px;
  letter-spacing:.6px;
  background:rgba(139,92,246,.16);
  border:1px solid rgba(139,92,246,.36);
  color:#C4B1FF;
}
.badge-line{
  background:rgba(53,225,214,.08);
  border:1px solid rgba(53,225,214,.34);
  color:var(--brand-2);
}
.badge-line .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--brand-2);
  box-shadow:0 0 8px rgba(53,225,214,.9);
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--text-2);
  font-size:12.5px;
}
.time{
  color:var(--warm);
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:.4px;
}
.icon-tile{
  width:46px;
  height:46px;
  border-radius:14px;
  display:grid;
  place-items:center;
  background:rgba(43,107,255,.14);
  border:1px solid rgba(43,107,255,.32);
  color:var(--brand-2);
  font-size:18px;
  flex-shrink:0;
}

/* ============ 混排卡片网格 ============ */
.mix-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.mix-card{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  display:flex;
  flex-direction:column;
}
.mix-card:hover{
  transform:translateY(-4px);
  border-color:var(--brand-2);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 16px 44px rgba(43,107,255,.26);
}
.mix-card--xl{
  grid-column:span 4;
  display:grid;
  grid-template-columns:1.02fr 1fr;
  align-items:stretch;
}
.mix-card--xl .xl-media{
  position:relative;
  overflow:hidden;
  min-height:290px;
}
.mix-card--xl .xl-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  aspect-ratio:16/9;
}
.mix-card--xl .xl-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(7,11,22,.62),rgba(7,11,22,0) 62%);
}
.mix-card--xl .xl-body{
  padding:32px 34px;
  display:flex;
  flex-direction:column;
  gap:14px;
  justify-content:center;
}
.mix-card--xl .xl-body .h3{font-size:23px}
.mix-card--xl .xl-body p{color:var(--text-2);font-size:15.5px}
.mix-card--md{grid-column:span 2}
.mix-card--md .md-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.mix-card--md .md-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.mix-card--md .md-body p{color:var(--text-2);font-size:14.5px;line-height:1.8}
.mix-card--sm{
  grid-column:span 2;
  flex-direction:row;
  align-items:center;
  gap:16px;
  padding:22px 24px;
}
.mix-card--sm .sm-body{display:flex;flex-direction:column;gap:4px}
.mix-card--sm .sm-body strong{font-size:16.5px;font-weight:600;color:#fff}
.mix-card--sm .sm-body span{font-size:14px;color:var(--text-2);line-height:1.7}
.mix-card .go{
  margin-top:auto;
  padding-top:12px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--brand-2);
  font-size:14px;
  font-weight:600;
}
.mix-card .go i{transition:transform .2s var(--ease)}
.mix-card:hover .go i{transform:translateX(4px)}
.mix-card--md, .mix-card--sm{cursor:pointer}
.mix-card .card-link{
  position:absolute;
  inset:0;
  z-index:2;
  font-size:0;
  color:transparent;
}

/* ============ 对比区 ============ */
.compare-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:22px;
}
.compare-panel{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--bg-800);
  padding:30px 30px 32px;
  position:relative;
  overflow:hidden;
}
.compare-panel.is-good{
  border-color:rgba(53,225,214,.34);
  background:linear-gradient(180deg,rgba(53,225,214,.07),rgba(12,19,36,.9) 42%);
}
.compare-panel.is-good::before{
  content:"";
  position:absolute;
  inset:0 auto 0 0;
  width:3px;
  background:linear-gradient(180deg,#2B6BFF,#35E1D6);
}
.compare-panel h3{
  font-size:19px;
  font-weight:700;
  color:#fff;
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:8px;
}
.compare-panel .cp-note{
  color:var(--text-3);
  font-size:13.5px;
  margin-bottom:20px;
}
.compare-panel ul{display:flex;flex-direction:column;gap:14px}
.compare-panel li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  color:var(--text-2);
  font-size:15px;
  line-height:1.8;
}
.compare-panel li i{
  margin-top:6px;
  font-size:13px;
  flex-shrink:0;
}
.compare-panel.is-muted li i{color:var(--text-3)}
.compare-panel.is-good li i{color:var(--brand-2)}
.compare-panel.is-good li{color:var(--text-1)}

/* ============ 提示条 ============ */
.notice-bar{
  display:flex;
  align-items:center;
  gap:16px;
  padding:18px 24px;
  border-radius:var(--r-md);
  border:1px solid rgba(255,176,32,.26);
  background:linear-gradient(100deg,rgba(255,176,32,.09),rgba(12,19,36,.6));
  color:var(--text-2);
  font-size:14.5px;
  margin-top:34px;
}
.notice-bar i{color:var(--warm);font-size:16px;flex-shrink:0}
.notice-bar strong{color:var(--warm);font-weight:700}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.accordion{
  background:transparent;
  border:0;
  margin:0;
}
.accordion .accordion-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:14px;
  overflow:hidden;
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.accordion .accordion-item.is-active{
  border-color:rgba(53,225,214,.4);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 12px 34px rgba(43,107,255,.2);
}
.accordion .accordion-title{
  position:relative;
  display:flex;
  align-items:center;
  height:60px;
  padding:0 62px 0 24px;
  border:0;
  background:transparent;
  color:var(--text-1);
  font-size:16.5px;
  font-weight:600;
  line-height:1.5;
  transition:color .18s var(--ease);
}
.accordion .accordion-title:hover{color:var(--brand-2)}
.accordion .accordion-title::before{
  content:"+";
  position:absolute;
  right:24px;
  top:50%;
  transform:translateY(-50%);
  font-size:22px;
  font-weight:400;
  line-height:1;
  color:var(--brand-2);
  transition:transform .24s var(--ease);
}
.accordion .accordion-item.is-active .accordion-title::before{
  content:"−";
  transform:translateY(-50%) rotate(180deg);
}
.accordion .accordion-content{
  border:0;
  background:transparent;
  padding:0 24px 24px 24px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.9;
}
.accordion .accordion-content p{margin:0}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  border-radius:var(--r-lg);
  border:1px solid rgba(53,225,214,.26);
  background:linear-gradient(115deg,rgba(43,107,255,.2),rgba(12,19,36,.9) 46%,rgba(139,92,246,.18));
  padding:48px 46px;
  overflow:hidden;
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:36px;
  align-items:center;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:-40% -10% auto auto;
  width:420px;
  height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(53,225,214,.22),transparent 66%);
  pointer-events:none;
}
.cta-band h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:700;
  color:#fff;
  line-height:1.35;
  margin-bottom:12px;
}
.cta-band p{color:var(--text-2);font-size:15.5px;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.cta-list{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}

/* ============ 表单 ============ */
.mini-form{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:16px;
  margin-top:22px;
}
.mini-form .field{display:flex;flex-direction:column;gap:8px}
.mini-form .field.full{grid-column:span 2}
.mini-form label{font-size:13.5px;color:var(--text-2);letter-spacing:.4px}
.mini-form input,
.mini-form select{
  height:48px;
  padding:0 16px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text-1);
  font-size:15px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.mini-form input::placeholder{color:var(--text-3)}
.mini-form input:focus,
.mini-form select:focus{
  outline:none;
  border-color:var(--brand-2);
  background:rgba(53,225,214,.06);
  box-shadow:0 0 0 3px rgba(53,225,214,.16);
}
.mini-form select option{background:var(--bg-800);color:var(--text-1)}
.mini-form .err{
  display:none;
  color:var(--warm);
  font-size:12.5px;
  line-height:1.5;
}
.mini-form .field.has-error input,
.mini-form .field.has-error select{
  border-color:rgba(255,176,32,.7);
}
.mini-form .field.has-error .err{display:block}

/* ============ 延伸阅读卡片条 ============ */
.read-more-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.read-card{
  position:relative;
  display:block;
  padding:24px 24px 22px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--panel);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.read-card:hover{
  transform:translateY(-4px);
  border-color:var(--brand-2);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 14px 38px rgba(43,107,255,.24);
}
.read-card .rc-top{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:12px;
}
.read-card h3{
  font-size:17px;
  font-weight:600;
  color:#fff;
  line-height:1.5;
}
.read-card p{color:var(--text-2);font-size:14px;line-height:1.8}
.read-card .rc-go{
  margin-top:16px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--brand-2);
  font-size:13.5px;
  font-weight:600;
}
.read-card .rc-go i{transition:transform .2s var(--ease)}
.read-card:hover .rc-go i{transform:translateX(4px)}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  margin-top:20px;
  background:var(--bg-800);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  z-index:1;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,225,214,.5),rgba(139,92,246,.4),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:48px;
}
.footer-brand p{
  margin-top:18px;
  color:var(--text-2);
  font-size:14px;
  line-height:1.85;
  max-width:320px;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:.4px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col ul a{
  color:var(--text-2);
  font-size:14px;
  transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.footer-col ul a:hover{color:var(--brand-2);padding-left:4px}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:var(--text-2);
  font-size:14px;
  line-height:1.7;
}
.footer-contact li i{color:var(--brand-2);margin-top:5px;font-size:13px}
.footer-contact li a{color:var(--text-2)}
.footer-contact li a:hover{color:var(--brand-2)}
.qr-box{
  margin-top:18px;
  width:96px;
  height:96px;
  border-radius:14px;
  border:1px dashed var(--line-strong);
  background:rgba(255,255,255,.03);
  display:grid;
  place-items:center;
  text-align:center;
  color:var(--text-3);
  font-size:12.5px;
  line-height:1.5;
}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 30px;
  display:flex;
  flex-wrap:wrap;
  gap:12px 28px;
  justify-content:space-between;
  color:var(--text-3);
  font-size:13px;
}
.footer-bottom a{color:var(--text-2)}
.footer-bottom a:hover{color:var(--brand-2)}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;
  right:22px;
  bottom:22px;
  width:46px;
  height:46px;
  border-radius:14px;
  border:1px solid var(--line-strong);
  background:rgba(12,19,36,.9);
  backdrop-filter:blur(10px);
  color:var(--text-1);
  font-size:16px;
  display:grid;
  place-items:center;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease),border-color .18s var(--ease);
  z-index:70;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:var(--brand-2);color:var(--brand-2)}

/* ============ 动效 ============ */
.fade-up{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
.fade-up.is-in{opacity:1;transform:translateY(0)}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .fade-up{opacity:1;transform:none}
}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .nav-links a{padding:0 10px;font-size:14px}
  .nav-links a::after{left:10px;right:10px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .btn-ghost-icon{display:none}
  .nav-wrap{height:60px}
  .section{padding:72px 0}
  .page-hero{min-height:340px;padding:44px 0 48px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:30px}
  .cta-band{grid-template-columns:1fr;padding:38px 30px}
  .cta-actions{justify-content:flex-start}
  .mix-grid{grid-template-columns:repeat(2,1fr)}
  .mix-card--xl{grid-column:span 2;grid-template-columns:1fr}
  .mix-card--xl .xl-media{min-height:220px}
  .mix-card--md{grid-column:span 1}
  .mix-card--sm{grid-column:span 2}
  .mix-card--xl .xl-body{padding:26px}
  .read-more-grid{grid-template-columns:1fr}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .logo-text span{letter-spacing:2px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:30px}
  .compare-grid{grid-template-columns:1fr}
  .mini-form{grid-template-columns:1fr}
  .mini-form .field.full{grid-column:span 1}
  .mix-card--xl .xl-media{min-height:180px}
  .hero-meta{gap:20px}
  .hero-meta .hm b{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:34px}
  .footer-brand p{max-width:none}
  .footer-bottom{font-size:12.5px}
  .accordion .accordion-title{font-size:15.5px;padding:0 54px 0 18px;height:auto;min-height:58px;padding-top:14px;padding-bottom:14px}
  .accordion .accordion-title::before{right:18px}
  .accordion .accordion-content{padding:0 18px 20px}
}
@media (max-width:560px){
  body{font-size:15.5px}
  .page-hero h1{font-size:26px;line-height:1.34}
  .page-hero .lead{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .cta-band{padding:30px 22px}
  .cta-actions .btn{width:100%}
  .to-top{right:14px;bottom:14px}
  .card{padding:20px}
  .mix-card--sm{padding:18px 20px}
  .notice-bar{flex-direction:column;align-items:flex-start;gap:8px;padding:16px 18px}
}