/* roulang page: index */
:root{
  --bg-900:#071320;
  --bg-800:#0B1B2B;
  --bg-700:#102438;
  --glass:rgba(255,255,255,.055);
  --glass-2:rgba(255,255,255,.09);
  --line:rgba(120,200,255,.20);
  --line-soft:rgba(120,200,255,.12);
  --accent:#39E2FF;
  --accent-soft:rgba(57,226,255,.12);
  --amber:#FFB547;
  --teal:#2FD4C4;
  --txt:#EAF2FF;
  --txt-2:#9FB3C8;
  --txt-3:#6F8499;
  --ink:#0C1E30;
  --ink-2:#43596E;
  --paper:#FFFFFF;
  --paper-line:#E3EAF2;
  --r-card:18px;
  --r-lg:22px;
  --r-pill:999px;
  --r-input:12px;
  --r-img:14px;
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.55);
  --shadow-glow:0 8px 30px -8px rgba(57,226,255,.55);
  --w:1180px;
  --gap:8px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg-900);
  color:var(--txt);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font:inherit;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container-x{max-width:var(--w);margin:0 auto;padding:0 24px}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--paper-line);
  box-shadow:0 2px 12px rgba(12,30,48,.06);
}
.nav-inner{display:flex;align-items:center;gap:22px;height:70px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.brand-mark{
  width:30px;height:30px;border-radius:10px;
  background:linear-gradient(135deg,#0C1E30 0%,#1C7E9E 100%);
  display:grid;place-items:center;flex:0 0 auto;
  box-shadow:0 6px 16px -8px rgba(28,126,158,.9);
}
.brand-mark svg{width:17px;height:17px;fill:#39E2FF}
.brand-text{font-size:17px;font-weight:700;line-height:1.2;letter-spacing:0}
.nav-links{display:flex;align-items:center;gap:26px;margin:0 auto}
.nav-links a{
  position:relative;display:inline-block;
  font-size:15px;color:#22384C;padding:23px 0;line-height:1;
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left center;
  transition:transform .22s ease;
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,
.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  border-radius:var(--r-pill);background:#F2F6FA;border:1px solid transparent;
  transition:background .2s,border-color .2s,box-shadow .2s;
}
.search-box:focus-within{background:#fff;border-color:var(--accent);box-shadow:0 0 0 3px rgba(57,226,255,.16)}
.search-box svg{width:15px;height:15px;fill:#8298AC;flex:0 0 auto}
.search-box input{
  border:0;background:transparent;outline:none;width:126px;
  font-size:14px;color:var(--ink);padding:0;
}
.search-box input::placeholder{color:#93A6B8}
.btn-nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 22px;border:0;border-radius:var(--r-pill);
  background:linear-gradient(135deg,#0C1E30 0%,#1F86A8 100%);
  color:#fff;font-size:14px;font-weight:600;
  transition:filter .22s,box-shadow .22s,transform .22s;
}
.btn-nav-cta:hover{filter:brightness(1.12);box-shadow:0 10px 24px -10px rgba(31,134,168,.95);color:#fff;transform:translateY(-1px)}
.btn-nav-cta:active{transform:translateY(0)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;margin-left:auto;border:1px solid var(--paper-line);
  border-radius:12px;background:#F7FAFD;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .2s;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  position:fixed;left:0;right:0;top:62px;z-index:1029;
  background:#fff;border-bottom:1px solid var(--paper-line);
  box-shadow:0 26px 44px -20px rgba(12,30,48,.3);
  padding:14px 24px 24px;
  opacity:0;pointer-events:none;transform:translateY(-12px);
  transition:opacity .24s ease,transform .24s ease;
}
.mobile-drawer.open{opacity:1;pointer-events:auto;transform:none}
.mobile-drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:46px;padding:6px 2px;font-size:15px;color:#17324A;
  border-bottom:1px solid #EEF3F8;
}
.mobile-drawer a.drawer-link:active{color:#1F86A8}
.mobile-drawer .drawer-cta{
  display:flex;align-items:center;justify-content:center;height:46px;margin-top:16px;
  border-radius:var(--r-pill);background:linear-gradient(135deg,#0C1E30,#1F86A8);
  color:#fff;font-weight:600;font-size:15px;
}

/* ---------- 按钮 ---------- */
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:50px;padding:0 30px;border:0;border-radius:var(--r-pill);
  background:linear-gradient(135deg,#39E2FF 0%,#2FD4C4 100%);
  color:#062430;font-size:15px;font-weight:700;
  box-shadow:var(--shadow-glow);
  transition:filter .22s,transform .22s,box-shadow .22s;
}
.btn-glow:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 12px 36px -8px rgba(57,226,255,.7);color:#062430}
.btn-glow:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:50px;padding:0 26px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(120,200,255,.35);
  color:var(--txt);font-size:15px;font-weight:600;
  backdrop-filter:blur(10px);
  transition:background .22s,border-color .22s,transform .22s,color .22s;
}
.btn-ghost:hover{background:rgba(57,226,255,.14);border-color:rgba(57,226,255,.7);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--accent);font-weight:600}
.link-more:hover{color:#7FEFFF}
.link-more::after{content:"›";font-size:16px;line-height:1;transform:translateY(-1px);transition:transform .2s}
.link-more:hover::after{transform:translate(3px,-1px)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:92px 0 104px;background:var(--bg-900)}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  opacity:.85;
}
.hero-overlay{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(7,19,32,.66) 0%,rgba(7,19,32,.80) 55%,rgba(7,19,32,.94) 100%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:#9BEBFF;
  padding:7px 16px;border-radius:var(--r-pill);
  background:var(--accent-soft);border:1px solid rgba(57,226,255,.32);
  margin-bottom:22px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px 2px rgba(57,226,255,.65)}
.hero-title{
  font-size:clamp(34px,5vw,56px);line-height:1.22;font-weight:700;
  letter-spacing:-.2px;color:#F4FAFF;margin-bottom:20px;
}
.hero-sub{font-size:clamp(15px,1.6vw,17px);line-height:1.85;color:var(--txt-2);max-width:560px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.hero-badges li{
  font-size:13px;color:#A8DCEB;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(120,200,255,.22);
}
.hero-visual{position:relative}
.device-card{
  position:relative;padding:16px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.device-frame{
  border-radius:var(--r-img);overflow:hidden;
  border:1px solid rgba(120,200,255,.18);
  box-shadow:inset 0 0 44px rgba(0,0,0,.5);
  background:#0A1A29;
}
.device-frame img{width:100%;aspect-ratio:16/11;object-fit:cover}
.device-bar{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.device-bar span{
  font-size:12px;color:#8FE9FF;padding:6px 12px;border-radius:var(--r-pill);
  background:rgba(57,226,255,.12);border:1px solid rgba(57,226,255,.28);
}
.float-stat{
  position:absolute;left:-16px;bottom:-20px;
  display:flex;align-items:center;gap:6px;
  padding:10px 16px;border-radius:14px;
  background:rgba(11,27,43,.94);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  font-size:13px;color:var(--txt-2);
}
.float-stat strong{color:var(--amber);font-size:16px;font-variant-numeric:tabular-nums}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;position:relative}
.section--alt{background:var(--bg-800)}
.section--deep{background:var(--bg-700)}
.section-head{max-width:720px;margin-bottom:40px}
.section-head .eyebrow{margin-bottom:16px}
.section-title{
  font-size:clamp(26px,3.4vw,40px);line-height:1.3;font-weight:700;
  letter-spacing:-.2px;color:#F2F8FF;margin-bottom:14px;
}
.section-sub{font-size:16px;line-height:1.85;color:var(--txt-2);max-width:680px}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.rule{height:1px;background:linear-gradient(90deg,rgba(120,200,255,.28),transparent);border:0;margin:0}

/* ---------- Bento 卖点 ---------- */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.bento-card{
  background:var(--glass);border:1px solid var(--line-soft);
  border-radius:var(--r-card);padding:26px;
  backdrop-filter:blur(14px) saturate(120%);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.bento-card:hover{
  transform:translateY(-3px);
  border-color:rgba(57,226,255,.45);
  box-shadow:var(--shadow-card),0 0 0 1px rgba(57,226,255,.28);
}
.bento-lg{
  grid-column:span 2;border-radius:var(--r-lg);
  display:grid;grid-template-columns:1fr .92fr;gap:26px;align-items:center;
}
.bento-lg h3{font-size:22px;line-height:1.45;font-weight:600;color:#F2F8FF;margin-bottom:12px}
.bento-lg p{font-size:15px;line-height:1.85;color:var(--txt-2);margin-bottom:16px}
.bento-lg figure{margin:0}
.bento-lg img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);border:1px solid rgba(120,200,255,.18)}
.bento-card h3{font-size:19px;line-height:1.5;font-weight:600;color:#EFF6FF;margin-bottom:10px}
.bento-card p{font-size:14.5px;line-height:1.85;color:var(--txt-2)}
.ico{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(57,226,255,.12);border:1px solid rgba(57,226,255,.3);
  color:var(--accent);font-weight:700;font-size:15px;margin-bottom:16px;
  letter-spacing:-.5px;
}
.metrics-strip{
  margin-top:22px;display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line-soft);border-radius:var(--r-card);
  background:rgba(255,255,255,.04);overflow:hidden;
}
.metric{padding:26px 24px;border-right:1px solid var(--line-soft)}
.metric:last-child{border-right:0}
.metric b{display:block;font-size:clamp(24px,2.6vw,32px);line-height:1.2;color:#F2F8FF;font-variant-numeric:tabular-nums;margin-bottom:6px}
.metric span{font-size:13px;color:var(--txt-3);line-height:1.6}

/* ---------- 演示步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;position:relative}
.steps::before{
  content:"";position:absolute;top:46px;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(57,226,255,.45) 22%,rgba(57,226,255,.45) 78%,transparent);
}
.step{position:relative;background:var(--glass);border:1px solid var(--line-soft);border-radius:var(--r-card);padding:28px 26px;backdrop-filter:blur(12px);transition:transform .25s,border-color .25s,box-shadow .25s}
.step:hover{transform:translateY(-3px);border-color:rgba(57,226,255,.4);box-shadow:var(--shadow-card)}
.step-num{
  font-size:58px;line-height:1;font-weight:800;
  color:transparent;-webkit-text-stroke:1.5px rgba(57,226,255,.6);
  font-variant-numeric:tabular-nums;margin-bottom:14px;display:block;
}
.step-dot{
  position:absolute;top:44px;right:26px;width:9px;height:9px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 4px rgba(57,226,255,.16),0 0 16px 4px rgba(57,226,255,.5);
}
.step h3{font-size:19px;font-weight:600;color:#F1F8FF;margin-bottom:10px}
.step p{font-size:14.5px;line-height:1.85;color:var(--txt-2);margin-bottom:16px}
.step-thumb{
  border-radius:12px;overflow:hidden;border:1px solid rgba(120,200,255,.16);background:#0A1A29;
}
.step-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- 证据区 ---------- */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:40px}
.stat-item{border-left:2px solid rgba(57,226,255,.42);padding-left:18px}
.stat-item b{
  display:block;line-height:1.2;margin-bottom:6px;
  font-size:clamp(28px,3.4vw,40px);font-weight:700;
  color:var(--amber);font-variant-numeric:tabular-nums;
}
.stat-item span{font-size:13.5px;color:var(--txt-3)}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review-card{
  background:var(--glass);border:1px solid var(--line-soft);border-radius:var(--r-card);
  padding:26px;backdrop-filter:blur(12px);
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.review-card:hover{transform:translateY(-3px);border-color:rgba(57,226,255,.4);box-shadow:var(--shadow-card)}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 auto;
  display:grid;place-items:center;font-size:14px;font-weight:700;color:#062430;
  background:linear-gradient(135deg,#39E2FF,#2FD4C4);
}
.review-name{font-size:15px;font-weight:600;color:#EFF6FF;line-height:1.4}
.review-role{font-size:12.5px;color:var(--txt-3)}
.review-card p{font-size:14.5px;line-height:1.85;color:var(--txt-2)}
.stars{display:flex;gap:3px;margin-top:14px;color:var(--amber);font-size:13px;letter-spacing:2px}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--glass);border:1px solid var(--line-soft);border-radius:var(--r-lg);
  padding:32px 28px;backdrop-filter:blur(14px);
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.price-card:hover{transform:translateY(-3px);border-color:rgba(57,226,255,.4);box-shadow:var(--shadow-card)}
.price-card.featured{
  border-color:rgba(57,226,255,.6);
  box-shadow:0 0 0 1px rgba(57,226,255,.3),0 24px 54px -26px rgba(57,226,255,.55);
  background:linear-gradient(180deg,rgba(57,226,255,.09),rgba(255,255,255,.04));
}
.price-badge{
  position:absolute;top:18px;right:18px;
  font-size:12px;font-weight:700;color:#3A2500;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--amber);
}
.price-name{font-size:17px;font-weight:600;color:#EFF6FF;margin-bottom:6px}
.price-desc{font-size:13.5px;color:var(--txt-3);margin-bottom:20px}
.price-amount{display:flex;align-items:baseline;gap:6px;margin-bottom:22px}
.price-amount b{font-size:clamp(30px,3.6vw,42px);line-height:1.1;font-weight:700;color:#F4FAFF;font-variant-numeric:tabular-nums}
.price-amount span{font-size:13.5px;color:var(--txt-3)}
.price-list{margin-bottom:26px;display:grid;gap:12px}
.price-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:var(--txt-2)}
.price-list li::before{
  content:"✓";flex:0 0 auto;width:20px;height:20px;border-radius:50%;
  display:grid;place-items:center;font-size:11px;font-weight:700;
  color:var(--teal);background:rgba(47,212,196,.14);border:1px solid rgba(47,212,196,.32);
}
.price-card .price-btn{
  margin-top:auto;display:flex;align-items:center;justify-content:center;
  min-height:46px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;color:#0A2231;
  background:linear-gradient(135deg,#39E2FF,#2FD4C4);
  transition:filter .22s,transform .22s,box-shadow .22s;
}
.price-card .price-btn:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:var(--shadow-glow)}
.price-card .price-btn.ghost{
  background:rgba(255,255,255,.06);color:var(--txt);
  border:1px solid rgba(120,200,255,.35);
}
.price-card .price-btn.ghost:hover{background:rgba(57,226,255,.14);border-color:rgba(57,226,255,.7);color:#fff;box-shadow:none}
.price-note{margin-top:26px;font-size:13.5px;color:var(--txt-3);line-height:1.8}

/* ---------- 资讯卡 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass);border:1px solid var(--line-soft);border-radius:var(--r-card);
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.news-card:hover{transform:translateY(-3px);border-color:rgba(57,226,255,.42);box-shadow:var(--shadow-card)}
.news-cover{display:block;overflow:hidden;aspect-ratio:16/9;background:#0A1A29}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-tag{
  align-self:flex-start;font-size:12px;color:#8FE9FF;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--accent-soft);border:1px solid rgba(57,226,255,.3);
  margin-bottom:12px;
}
.news-title{
  font-size:17px;line-height:1.55;font-weight:600;color:#EFF6FF;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-excerpt{
  font-size:14px;line-height:1.8;color:var(--txt-2);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid rgba(120,200,255,.12);
  font-size:13px;color:var(--txt-3);
}
.news-foot .link-more{font-size:13px}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  padding:56px 24px;border:1px dashed rgba(120,200,255,.28);border-radius:var(--r-card);
  background:rgba(255,255,255,.03);color:var(--txt-3);font-size:14.5px;
}
.empty-state .empty-ico{
  width:46px;height:46px;border-radius:50%;display:grid;place-items:center;
  background:rgba(57,226,255,.1);border:1px solid rgba(57,226,255,.28);color:var(--accent);font-size:20px;
}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  background:rgba(255,255,255,.045);border:1px solid var(--line-soft);
  border-radius:14px;margin-bottom:10px;overflow:hidden;
}
.faq-acc .accordion-item:last-child{margin-bottom:0}
.faq-acc .accordion-header{margin:0;font-size:inherit}
.faq-acc .accordion-button{
  display:flex;align-items:center;gap:14px;width:100%;
  background:transparent;border:0;box-shadow:none;
  padding:19px 22px;font-size:16px;font-weight:600;color:var(--txt);
  transition:background .22s,color .22s;
}
.faq-acc .accordion-button:not(.collapsed){background:rgba(57,226,255,.08);color:#F4FBFF}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--accent);outline-offset:-2px}
.faq-acc .accordion-button::after{
  content:"+";margin-left:auto;flex:0 0 auto;
  display:grid;place-items:center;width:28px;height:28px;border-radius:50%;
  background:rgba(57,226,255,.12);border:1px solid rgba(57,226,255,.32);
  color:var(--accent);font-size:17px;line-height:1;font-weight:500;
  transform:none;transition:transform .22s ease,background .22s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  content:"−";transform:rotate(180deg);background:rgba(57,226,255,.22);
}
.faq-idx{
  flex:0 0 auto;font-size:13px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:.5px;
}
.faq-q{line-height:1.6;text-align:left}
.faq-acc .accordion-body{
  padding:4px 22px 22px 60px;font-size:14.5px;line-height:1.85;color:var(--txt-2);
}
.faq-acc .accordion-collapse{transition:height .22s ease}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  background:linear-gradient(120deg,rgba(57,226,255,.13),rgba(255,255,255,.05) 55%,rgba(47,212,196,.12));
  border:1px solid rgba(120,200,255,.28);
  border-radius:var(--r-lg);
  padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);line-height:1.4;font-weight:700;color:#F4FAFF;margin-bottom:10px}
.cta-band p{font-size:14.5px;color:var(--txt-2);line-height:1.8}
.cta-band .cta-side{display:flex;flex-direction:column;align-items:flex-end;gap:10px;flex:0 0 auto}
.cta-band .cta-side small{font-size:12.5px;color:var(--txt-3)}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:26px;z-index:1040;
  display:inline-flex;align-items:center;gap:8px;
  height:52px;padding:0 24px;border-radius:var(--r-pill);
  background:linear-gradient(135deg,#39E2FF,#2FD4C4);color:#062430;
  font-size:14.5px;font-weight:700;
  box-shadow:0 12px 32px -10px rgba(57,226,255,.75);
  opacity:0;pointer-events:none;transform:translateY(14px);
  transition:opacity .3s ease,transform .3s ease,filter .22s;
}
.float-cta.is-show{opacity:1;pointer-events:auto;transform:none;animation:breath 3.2s ease-in-out infinite}
.float-cta:hover{filter:brightness(1.08);color:#062430}
.float-cta .dot{width:8px;height:8px;border-radius:50%;background:#062430;opacity:.7}
@keyframes breath{
  0%,100%{box-shadow:0 12px 32px -10px rgba(57,226,255,.7)}
  50%{box-shadow:0 12px 40px -6px rgba(57,226,255,.95)}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#061019;border-top:1px solid rgba(120,200,255,.14);
  padding:72px 0 0;position:relative;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;top:-140px;right:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(57,226,255,.12),transparent 68%);
  pointer-events:none;
}
.footer-grid{
  position:relative;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;
  padding-bottom:52px;
}
.footer-brand .brand{color:#F2F8FF;margin-bottom:16px}
.footer-brand .brand-mark{background:linear-gradient(135deg,#0F2B44,#1C7E9E)}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--txt-3);max-width:320px}
.footer-col h3{font-size:15px;font-weight:600;color:#E6F1FF;margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:var(--txt-3);min-height:22px;display:inline-block}
.footer-col a:hover{color:var(--accent)}
.footer-col p{font-size:14px;color:var(--txt-3);line-height:1.9}
.footer-bottom{
  position:relative;border-top:1px solid rgba(120,200,255,.14);
  padding:22px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--txt-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero-inner{gap:40px}
  .nav-links{gap:20px}
  .search-box input{width:104px}
}
@media (max-width:991.98px){
  .nav-links,.nav-actions{display:none}
  .nav-toggle{display:inline-flex}
  .nav-inner{height:62px}
  .hero{padding:64px 0 72px}
  .hero-inner{grid-template-columns:1fr;gap:44px}
  .hero-sub{max-width:100%}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento-lg{grid-column:span 2;grid-template-columns:1fr}
  .bento-lg img{aspect-ratio:16/9}
  .metrics-strip{grid-template-columns:repeat(2,1fr)}
  .metric:nth-child(2){border-right:0}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line-soft)}
  .steps{grid-template-columns:1fr;gap:18px}
  .steps::before{display:none}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:20px}
  .review-grid{grid-template-columns:1fr;gap:18px}
  .price-grid{grid-template-columns:1fr;gap:18px}
  .news-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 28px}
  .cta-band .cta-side{align-items:flex-start;width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .float-stat{left:auto;right:0;bottom:-18px}
}
@media (max-width:767.98px){
  .container-x{padding:0 18px}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .hero-title{font-size:clamp(28px,7vw,36px)}
  .hero-actions{gap:12px}
  .btn-glow,.btn-ghost{width:100%;padding:0 20px}
  .bento{grid-template-columns:1fr;gap:16px}
  .bento-lg{grid-column:span 1;padding:22px}
  .bento-card{padding:20px;border-radius:16px}
  .stat-row{grid-template-columns:1fr 1fr}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .site-footer{padding-top:52px}
  .footer-bottom{font-size:12.5px;justify-content:flex-start}
  .faq-acc .accordion-button{padding:16px 16px;font-size:15px;gap:10px}
  .faq-acc .accordion-body{padding:2px 16px 18px 46px;font-size:14px}
  .float-cta{
    left:0;right:0;bottom:0;width:100%;height:54px;
    border-radius:0;justify-content:center;
    box-shadow:0 -8px 24px -12px rgba(57,226,255,.7);
    animation:none;
  }
  .float-cta.is-show{animation:none}
  body{padding-bottom:0}
}
@media (max-width:575.98px){
  .hero-badges li{font-size:12.5px;padding:5px 12px}
  .metrics-strip{grid-template-columns:1fr 1fr}
  .metric{padding:20px 16px}
  .device-card{padding:12px}
  .float-stat{position:static;margin-top:14px;left:auto;right:auto;bottom:auto;justify-content:center}
  .stat-row{grid-template-columns:1fr}
  .cta-band{padding:28px 20px;border-radius:18px}
  .price-card{padding:26px 20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --bg-900:#071320;
  --bg-800:#0B1B2B;
  --bg-700:#102438;
  --glass:rgba(255,255,255,0.055);
  --glass-strong:rgba(255,255,255,0.085);
  --glass-border:rgba(120,200,255,0.20);
  --glass-border-soft:rgba(120,200,255,0.12);
  --accent:#39E2FF;
  --accent-soft:rgba(57,226,255,0.12);
  --amber:#FFB547;
  --teal:#2FD4C4;
  --text:#EAF2FF;
  --text-2:#9FB3C8;
  --text-3:#6F8499;
  --header-bg:#FFFFFF;
  --header-border:#E3EAF2;
  --header-text:#0C1E30;
  --radius-card:18px;
  --radius-lg:22px;
  --radius-sm:12px;
  --radius-img:14px;
  --radius-pill:999px;
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.55);
  --shadow-header:0 2px 12px rgba(12,30,48,.06);
  --glow-btn:0 8px 30px -8px rgba(57,226,255,.55);
  --container:1180px;
  --gap:22px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg-900);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:900;
  background:var(--header-bg);
  border-bottom:1px solid var(--header-border);
  box-shadow:var(--shadow-header);
}
.header-inner{
  display:flex;align-items:center;gap:26px;
  height:70px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,#0C1E30,#1D7F9E);
  box-shadow:0 6px 16px -8px rgba(12,30,48,.7);
}
.brand-mark svg{width:20px;height:20px;fill:var(--accent);}
.brand-text{
  font-size:17px;font-weight:700;color:var(--header-text);
  letter-spacing:0;white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:70px;
  padding:0 13px;font-size:15px;font-weight:500;color:#2A3F55;
  transition:color .18s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:14px;height:2px;
  background:var(--accent);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-links a:hover{color:#0C1E30;}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:#0C1E30;font-weight:700;}
.nav-links a.active::after{transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  position:relative;display:flex;align-items:center;
  height:40px;width:250px;
  background:#F2F6FA;border:1px solid transparent;
  border-radius:var(--radius-pill);padding:0 14px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box i{font-size:13px;color:#7C93A8;margin-right:8px;}
.search-box input{
  width:100%;border:none;background:transparent;outline:none;
  font-size:14px;color:#0C1E30;line-height:1;
}
.search-box input::placeholder{color:#8FA3B6;}
.search-box:focus-within{
  background:#fff;border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(57,226,255,.16);
}
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-pill);
  font-size:14.5px;font-weight:600;color:#fff;white-space:nowrap;
  background:linear-gradient(135deg,#0C2B44,#1FA9C9);
  box-shadow:0 8px 22px -12px rgba(31,169,201,.9);
  transition:transform .18s ease,box-shadow .22s ease,filter .18s ease;
}
.btn-cta:hover{filter:brightness(1.1);box-shadow:var(--glow-btn);transform:translateY(-1px);color:#fff;}
.btn-cta:active{transform:translateY(0);filter:brightness(.97);}
.header-cta{height:40px;padding:0 18px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:#F2F6FA;color:#0C1E30;font-size:17px;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{background:#E7EFF7;}
.mobile-drawer{
  display:none;border-top:1px solid var(--header-border);
  background:#fff;padding:16px 24px 22px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer .search-box{width:100%;margin-bottom:14px;}
.mobile-drawer ul{display:flex;flex-direction:column;gap:2px;margin-bottom:16px;}
.mobile-drawer ul a{
  display:block;padding:12px 4px;font-size:15px;color:#2A3F55;
  border-bottom:1px solid #F0F4F8;min-height:44px;
}
.mobile-drawer ul a.active{color:#0C1E30;font-weight:700;}
.mobile-drawer .btn-cta{width:100%;}

/* ============ 主区域 ============ */
.page-main{position:relative;background:var(--bg-900);overflow:hidden;}
.article-hero{
  position:relative;
  padding:34px 0 8px;
  background:
    radial-gradient(900px 380px at 82% -10%,rgba(57,226,255,.14),transparent 62%),
    radial-gradient(700px 320px at 8% 0%,rgba(47,212,196,.10),transparent 60%),
    var(--bg-900);
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.16;pointer-events:none;
}
.article-hero .container-x{position:relative;z-index:2;}
.breadcrumb-x{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13.5px;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb-x a{color:var(--text-2);transition:color .18s ease;}
.breadcrumb-x a:hover{color:var(--accent);}
.breadcrumb-x .sep{color:rgba(120,150,180,.6);}
.breadcrumb-x .current{
  color:var(--text-3);
  max-width:min(560px,62vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-title{
  font-size:clamp(26px,3.6vw,40px);
  line-height:1.3;font-weight:700;color:#F4F9FF;
  letter-spacing:-0.2px;max-width:900px;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:14px;
  margin-top:20px;padding-bottom:26px;
  border-bottom:1px solid rgba(120,200,255,.14);
  font-size:13.5px;color:var(--text-3);
}
.meta-row .badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12.5px;color:var(--accent);
  background:var(--accent-soft);border:1px solid rgba(57,226,255,.28);
}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-item i{font-size:12px;color:var(--teal);}
.meta-dot{width:3px;height:3px;border-radius:50%;background:rgba(120,150,180,.55);}

/* ============ 正文布局 ============ */
.article-section{padding:38px 0 84px;background:var(--bg-900);}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:34px;align-items:start;
}
.article-card{
  background:linear-gradient(180deg,rgba(255,255,255,.062),rgba(255,255,255,.032));
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  padding:38px 40px 34px;
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.article-body{
  max-width:800px;
  font-size:16.5px;line-height:1.85;color:#D6E3F2;
}
.article-body p{margin:0 0 20px;}
.article-body h2{
  font-size:clamp(20px,2.4vw,26px);line-height:1.42;font-weight:700;
  color:#F2F8FF;margin:40px 0 18px;padding-left:14px;
  border-left:4px solid var(--accent);border-radius:2px;
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{
  font-size:18px;line-height:1.5;font-weight:600;color:#E7F1FB;
  margin:30px 0 14px;
}
.article-body h4{font-size:16px;font-weight:600;color:#DDE9F6;margin:24px 0 12px;}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 20px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:10px;}
.article-body li::marker{color:var(--accent);}
.article-body a{
  color:var(--accent);border-bottom:1px solid rgba(57,226,255,.35);
  transition:opacity .18s ease;
}
.article-body a:hover{opacity:.82;}
.article-body img{
  width:100%;height:auto;border-radius:var(--radius-img);
  border:1px solid var(--glass-border-soft);margin:24px 0;
}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;
  border-left:2px solid var(--accent);
  background:rgba(57,226,255,.06);
  border-radius:0 12px 12px 0;
  color:#C4D6E8;font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;color:#CFDDEC;}
.article-body th,.article-body td{border:1px solid rgba(120,200,255,.18);padding:10px 13px;text-align:left;}
.article-body th{background:rgba(255,255,255,.06);color:#EAF2FF;font-weight:600;}
.article-body code{
  background:rgba(255,255,255,.09);padding:2px 6px;border-radius:6px;
  font-size:.92em;color:var(--amber);
}
.article-body hr{
  border:none;height:1px;background:rgba(120,200,255,.16);margin:34px 0;
}
.article-body strong{color:#F3F9FF;font-weight:600;}

/* 无内容态 */
.empty-state{padding:44px 8px;text-align:center;}
.empty-state i{font-size:38px;color:rgba(57,226,255,.55);margin-bottom:18px;display:block;}
.empty-state h2{font-size:22px;color:#EDF5FF;margin-bottom:12px;font-weight:700;}
.empty-state p{color:var(--text-2);font-size:15px;max-width:460px;margin:0 auto 24px;}
.empty-state .btn-cta{height:46px;}

/* 文末操作 */
.article-actions{
  display:flex;flex-wrap:wrap;gap:14px;
  margin-top:38px;padding-top:28px;
  border-top:1px solid rgba(120,200,255,.14);
}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-pill);
  font-size:14.5px;font-weight:600;color:#CFE2F2;
  border:1px solid rgba(120,200,255,.30);
  background:rgba(255,255,255,.05);
  transition:border-color .2s ease,color .2s ease,transform .18s ease,background .2s ease;
}
.btn-ghost:hover{
  color:#fff;border-color:rgba(57,226,255,.7);
  background:rgba(57,226,255,.10);transform:translateY(-1px);
}
.btn-ghost:active{transform:translateY(0);}

/* ============ 侧栏 ============ */
.side-col{display:flex;flex-direction:column;gap:20px;position:sticky;top:92px;}
.side-card{
  background:var(--glass);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  padding:22px;
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.side-card h3{
  font-size:15px;font-weight:700;color:#F0F7FF;
  display:flex;align-items:center;gap:8px;margin-bottom:16px;
}
.side-card h3 i{color:var(--accent);font-size:13px;}
.side-list{display:flex;flex-direction:column;gap:2px;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:10px 0;font-size:14px;color:var(--text-2);
  border-bottom:1px dashed rgba(120,200,255,.14);
  transition:color .18s ease,padding-left .18s ease;
}
.side-list li:last-child a{border-bottom:none;}
.side-list a:hover{color:var(--accent);padding-left:4px;}
.side-list a i{font-size:11px;opacity:.7;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag-cloud a{
  display:inline-flex;align-items:center;
  padding:6px 13px;border-radius:var(--radius-pill);
  font-size:12.5px;color:#A8DCEA;
  background:rgba(57,226,255,.09);
  border:1px solid rgba(57,226,255,.22);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.tag-cloud a:hover{background:rgba(57,226,255,.20);color:#EAF9FF;border-color:rgba(57,226,255,.5);}
.side-cta{
  background:linear-gradient(150deg,rgba(57,226,255,.16),rgba(255,181,71,.10));
  border:1px solid rgba(57,226,255,.30);
}
.side-cta p{font-size:13.5px;color:#BED3E6;line-height:1.75;margin-bottom:16px;}
.side-cta .btn-cta{width:100%;height:42px;font-size:14px;}

/* ============ 相关推荐 ============ */
.related-section{padding:0 0 84px;background:var(--bg-900);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:28px;flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(21px,2.6vw,28px);font-weight:700;color:#F2F8FF;line-height:1.35;
}
.section-head h2 span{
  display:block;font-size:13.5px;font-weight:400;color:var(--text-3);margin-top:8px;
}
.link-more{
  font-size:14px;color:var(--accent);display:inline-flex;align-items:center;gap:6px;
  transition:gap .2s ease,opacity .2s ease;
}
.link-more:hover{gap:10px;opacity:.85;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);}
.news-card{
  display:flex;flex-direction:column;
  background:var(--glass);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.news-card:hover{
  transform:translateY(-3px);
  border-color:rgba(57,226,255,.42);
  box-shadow:0 22px 46px -22px rgba(0,0,0,.75),0 0 0 1px rgba(57,226,255,.28);
}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-700);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-thumb .badge-cat{
  position:absolute;left:12px;top:12px;
  display:inline-flex;align-items:center;
  padding:4px 11px;border-radius:var(--radius-pill);
  font-size:12px;color:var(--accent);
  background:rgba(7,19,32,.78);
  border:1px solid rgba(57,226,255,.38);
  backdrop-filter:blur(6px);
}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.news-body h3{
  font-size:16.5px;line-height:1.55;font-weight:600;color:#EDF5FF;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:10px;
}
.news-body p{
  font-size:14px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:16px;
}
.news-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--text-3);
  padding-top:14px;border-top:1px solid rgba(120,200,255,.12);
}
.news-foot .go{color:var(--accent);display:inline-flex;align-items:center;gap:5px;}

/* ============ CTA 通栏 ============ */
.cta-band{padding:0 0 84px;background:var(--bg-900);}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  padding:34px 38px;border-radius:var(--radius-lg);
  background:
    radial-gradient(620px 200px at 88% 0%,rgba(57,226,255,.22),transparent 65%),
    linear-gradient(140deg,rgba(255,255,255,.075),rgba(255,255,255,.03));
  border:1px solid var(--glass-border);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.cta-inner h2{font-size:clamp(19px,2.4vw,25px);line-height:1.45;font-weight:700;color:#F4FAFF;}
.cta-inner p{font-size:14px;color:var(--text-2);margin-top:10px;}
.cta-inner .btn-cta{height:48px;padding:0 28px;font-size:15px;}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:26px;bottom:26px;z-index:800;
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-pill);
  font-size:14px;font-weight:600;color:#04141F;
  background:linear-gradient(135deg,#5CEBFF,#39E2FF);
  box-shadow:0 12px 34px -10px rgba(57,226,255,.75);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,box-shadow .3s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);animation:breathe 3.4s ease-in-out infinite;}
.float-cta:hover{box-shadow:0 16px 40px -8px rgba(57,226,255,.95);}
@keyframes breathe{
  0%,100%{box-shadow:0 12px 34px -10px rgba(57,226,255,.65);}
  50%{box-shadow:0 12px 40px -6px rgba(57,226,255,.95);}
}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:#061019;
  border-top:1px solid rgba(120,200,255,.12);
  padding:66px 0 0;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(700px 260px at 80% 0%,rgba(57,226,255,.10),transparent 65%);
}
.footer-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:34px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:10px;}
.footer-brand .brand-text{color:#EAF2FF;font-size:16px;}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--text-3);max-width:330px;}
.footer-col h3{font-size:15px;font-weight:700;color:#E4EEF9;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--text-3);transition:color .18s ease,padding-left .18s ease;}
.footer-col ul a:hover{color:var(--accent);padding-left:3px;}
.footer-col p{font-size:14px;line-height:1.85;color:var(--text-3);}
.footer-bottom{
  position:relative;z-index:2;
  margin-top:46px;padding:22px 0;
  border-top:1px solid rgba(120,200,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#5F7488;
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:26px;}
  .search-box{width:200px;}
}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .header-tools .search-box{display:none;}
  .header-cta{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .side-col{display:none;}
  .article-card{padding:30px 26px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-brand p{max-width:none;}
}
@media (max-width:767.98px){
  .container-x{padding:0 18px;}
  .header-inner{height:64px;gap:12px;}
  .brand-text{font-size:15px;}
  .brand-mark{width:30px;height:30px;border-radius:10px;}
  .article-hero{padding:24px 0 4px;}
  .breadcrumb-x{font-size:13px;gap:6px;margin-bottom:18px;}
  .breadcrumb-x .current{max-width:56vw;}
  .article-title{font-size:clamp(23px,6vw,30px);line-height:1.36;}
  .meta-row{gap:10px;font-size:12.5px;padding-bottom:20px;margin-top:16px;}
  .article-section{padding:26px 0 56px;}
  .article-card{padding:24px 18px;border-radius:var(--radius-card);}
  .article-body{font-size:16px;line-height:1.8;}
  .article-body h2{margin:32px 0 14px;padding-left:12px;}
  .article-actions{gap:10px;margin-top:28px;padding-top:22px;}
  .article-actions .btn-cta,.article-actions .btn-ghost{flex:1 1 100%;}
  .related-section{padding-bottom:56px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding-bottom:56px;}
  .cta-inner{padding:26px 20px;gap:18px;}
  .cta-inner .btn-cta{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
  .site-footer{padding-top:46px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;font-size:12.5px;padding-bottom:76px;}
  .float-cta{
    left:12px;right:12px;bottom:12px;height:52px;justify-content:center;
    border-radius:14px;font-size:14.5px;
  }
}
@media (max-width:519.98px){
  .article-title{font-size:22px;}
  .news-body h3{font-size:15.5px;}
  .brand-text{max-width:190px;overflow:hidden;text-overflow:ellipsis;}
}

/* roulang page: category1 */
:root{
  --bg-900:#071320;
  --bg-800:#0B1B2B;
  --bg-700:#102438;
  --glass:rgba(255,255,255,.055);
  --glass-strong:rgba(255,255,255,.085);
  --glass-brd:rgba(120,200,255,.20);
  --accent:#39E2FF;
  --accent-deep:#0FA9C9;
  --amber:#FFB547;
  --teal:#2FD4C4;
  --text:#EAF2FF;
  --muted:#9FB3C8;
  --dim:#6F8499;
  --ink:#0C1E30;
  --ink-2:#4A6274;
  --line:#E3EAF2;
  --r-card:18px;
  --r-big:22px;
  --r-img:14px;
  --r-pill:999px;
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.55);
  --shadow-glow:0 8px 30px -8px rgba(57,226,255,.55);
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg-900);
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--accent);text-decoration:none;transition:color .2s ease;}
a:hover{color:#8CF0FF;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:6px;
}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:-.2px;line-height:1.3;}
p{margin:0;}
button{font-family:inherit;cursor:pointer;}
.container-x{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 12px rgba(12,30,48,.06);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:32px;height:32px;border-radius:10px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#0C1E30 0%,#0FA9C9 100%);
  box-shadow:0 4px 14px -6px rgba(15,169,201,.9);
}
.brand-mark svg{width:20px;height:20px;fill:#EAF6FF;}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);white-space:nowrap;letter-spacing:-.2px;}
.nav-links{display:flex;align-items:center;gap:4px;margin:0 auto;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 12px;border-radius:8px;
  font-size:15px;color:var(--ink-2);font-weight:500;white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:10px;right:10px;bottom:6px;height:2px;
  background:var(--accent);border-radius:2px;transform:scaleX(0);
  transform-origin:left;transition:transform .22s ease;
}
.nav-links a:hover{color:var(--ink);background:#F5F9FD;}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--ink);font-weight:700;}
.nav-links a.active::after{transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;border-radius:var(--r-pill);
  background:#F2F6FA;border:1px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box:focus-within,
.search-box:hover{border-color:var(--accent);background:#FFFFFF;box-shadow:0 0 0 3px rgba(57,226,255,.16);}
.search-box i{color:#7B8FA3;font-size:13px;}
.search-box input{
  border:0;background:transparent;outline:none;width:132px;
  font-size:14px;color:var(--ink);font-family:inherit;
}
.search-box input::placeholder{color:#93A5B7;}
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:42px;padding:0 20px;border:0;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:#FFFFFF;
  background:linear-gradient(120deg,#0C1E30 0%,#0FA9C9 100%);
  box-shadow:0 8px 22px -12px rgba(12,30,48,.8);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
  white-space:nowrap;
}
.btn-cta:hover{filter:brightness(1.08);box-shadow:var(--shadow-glow);color:#FFFFFF;transform:translateY(-1px);}
.btn-cta:active{transform:translateY(0);filter:brightness(.98);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  background:#FFFFFF;border-radius:12px;color:var(--ink);font-size:17px;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{background:#F5F9FD;}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#FFFFFF;
  padding:16px 0 22px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer .drawer-links{display:flex;flex-direction:column;gap:2px;margin-bottom:14px;}
.mobile-drawer .drawer-links a{
  display:flex;align-items:center;min-height:46px;padding:0 12px;border-radius:10px;
  font-size:15px;color:var(--ink-2);font-weight:500;
}
.mobile-drawer .drawer-links a:hover{background:#F5F9FD;color:var(--ink);}
.mobile-drawer .drawer-links a.active{color:var(--ink);font-weight:700;background:#EFF8FE;border-left:3px solid var(--accent);}
.mobile-drawer .search-box{width:100%;margin-bottom:12px;}
.mobile-drawer .search-box input{width:100%;}
.mobile-drawer .btn-cta{width:100%;min-height:46px;}

/* ============ 页头横幅 ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:84px 0 76px;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid rgba(120,200,255,.14);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(7,19,32,.94) 0%,rgba(11,27,43,.86) 55%,rgba(16,36,56,.76) 100%);
}
.page-hero .container-x{position:relative;z-index:2;}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13.5px;color:var(--dim);margin-bottom:22px;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:#43586C;}
.crumb .current{color:var(--accent);}
.page-hero h1{
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.24;margin-bottom:18px;
}
.page-hero h1 .hl{
  background:linear-gradient(100deg,#39E2FF 10%,#2FD4C4 90%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{
  max-width:720px;font-size:17px;line-height:1.85;color:var(--muted);
}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;color:#B9E9F7;
  background:rgba(57,226,255,.10);
  border:1px solid rgba(57,226,255,.26);
}
.chip.amber{color:#FFD79A;background:rgba(255,181,71,.10);border-color:rgba(255,181,71,.30);}
.chip.teal{color:#A6F3EA;background:rgba(47,212,196,.10);border-color:rgba(47,212,196,.28);}

/* ============ 通用板块 ============ */
.section{padding:84px 0;}
.section.alt{background:var(--bg-800);border-top:1px solid rgba(120,200,255,.10);border-bottom:1px solid rgba(120,200,255,.10);}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--accent);
  padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(57,226,255,.09);border:1px solid rgba(57,226,255,.24);
  margin-bottom:16px;
}
.section-head h2{font-size:clamp(24px,3.2vw,36px);line-height:1.32;margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;line-height:1.85;}

/* ============ 主体两栏 ============ */
.guide-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:28px;align-items:start;
}
.guide-list{display:flex;flex-direction:column;gap:16px;}
.guide-card{
  position:relative;display:block;
  padding:26px 26px 24px 26px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--glass-brd);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease,background .25s ease;
}
.guide-card:hover{
  transform:translateY(-3px);
  border-color:rgba(57,226,255,.42);
  background:var(--glass-strong);
  box-shadow:var(--shadow-card),0 0 0 1px rgba(57,226,255,.28);
}
.guide-card:active{transform:translateY(-1px);}
.guide-top{display:flex;align-items:center;gap:14px;margin-bottom:12px;}
.guide-num{
  flex:0 0 auto;width:44px;height:44px;border-radius:13px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;
  color:var(--accent);
  background:rgba(57,226,255,.10);
  border:1px solid rgba(57,226,255,.30);
}
.guide-card h3{font-size:19px;line-height:1.45;margin:0;color:var(--text);}
.guide-card p{color:var(--muted);font-size:15.5px;line-height:1.8;margin-top:4px;}
.guide-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;flex-wrap:wrap;}
.tag-line{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 11px;border-radius:var(--r-pill);
  font-size:12.5px;color:#A9DCEC;
  background:rgba(57,226,255,.08);
  border:1px solid rgba(57,226,255,.22);
}
.tag.teal{color:#A6F3EA;background:rgba(47,212,196,.08);border-color:rgba(47,212,196,.24);}
.go-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--accent);
}
.go-link i{transition:transform .22s ease;font-size:12px;}
.guide-card:hover .go-link i{transform:translateX(4px);}

/* 侧栏 */
.side-col{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
.side-card{
  padding:24px;border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--glass-brd);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:9px;}
.side-card h3 i{color:var(--accent);font-size:14px;}
.anchor-list{display:flex;flex-direction:column;gap:2px;}
.anchor-list a{
  display:flex;align-items:center;gap:10px;
  min-height:42px;padding:0 10px;border-radius:10px;
  font-size:14.5px;color:var(--muted);
  transition:background .2s ease,color .2s ease,padding-left .2s ease;
}
.anchor-list a span.dot{width:6px;height:6px;border-radius:50%;background:var(--teal);flex:0 0 auto;}
.anchor-list a:hover{background:rgba(57,226,255,.09);color:var(--text);padding-left:14px;}
.side-cta{
  padding:24px;border-radius:var(--r-big);
  background:linear-gradient(150deg,rgba(57,226,255,.14) 0%,rgba(16,36,56,.9) 70%);
  border:1px solid rgba(57,226,255,.34);
  box-shadow:var(--shadow-card);
}
.side-cta h3{font-size:17px;margin-bottom:10px;}
.side-cta p{font-size:14.5px;color:#B7CBDE;line-height:1.75;margin-bottom:18px;}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  width:100%;min-height:46px;padding:0 22px;border:0;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;color:#04161F;
  background:linear-gradient(100deg,#39E2FF 0%,#2FD4C4 100%);
  box-shadow:var(--shadow-glow);
  transition:filter .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-glow:hover{filter:brightness(1.08);color:#04161F;transform:translateY(-1px);box-shadow:0 12px 34px -8px rgba(57,226,255,.68);}
.btn-glow:active{transform:translateY(0);filter:brightness(.98);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:var(--text);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(120,200,255,.36);
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.btn-ghost:hover{border-color:var(--accent);background:rgba(57,226,255,.12);color:var(--text);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.side-note{
  margin-top:14px;font-size:12.5px;color:var(--dim);line-height:1.7;
}

/* ============ 流程步骤 ============ */
.steps-wrap{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;position:relative;}
.step{
  position:relative;padding:28px 22px 24px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--glass-brd);
  backdrop-filter:blur(14px) saturate(120%);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-3px);border-color:rgba(57,226,255,.42);box-shadow:var(--shadow-card),0 0 0 1px rgba(57,226,255,.24);}
.step-num{
  font-size:40px;font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;
  color:transparent;-webkit-text-stroke:1.4px rgba(57,226,255,.75);
  margin-bottom:16px;display:block;
}
.step h3{font-size:17px;margin-bottom:9px;}
.step p{font-size:14.5px;color:var(--muted);line-height:1.78;}
.step::after{
  content:"";position:absolute;top:46px;right:-14px;width:8px;height:8px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 12px 2px rgba(57,226,255,.6);
}
.step:last-child::after{display:none;}

/* ============ 指标带 ============ */
.stats-band{
  margin-top:22px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border-radius:var(--r-big);overflow:hidden;
  background:rgba(255,255,255,.045);
  border:1px solid var(--glass-brd);
}
.stat-cell{padding:24px 18px;text-align:center;border-right:1px solid rgba(120,200,255,.12);}
.stat-cell:last-child{border-right:0;}
.stat-cell b{
  display:block;font-size:28px;color:var(--amber);
  font-variant-numeric:tabular-nums;line-height:1.2;margin-bottom:6px;
}
.stat-cell span{font-size:13.5px;color:var(--muted);}

/* ============ 场景卡 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.scene-card{
  overflow:hidden;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--glass-brd);
  backdrop-filter:blur(14px) saturate(120%);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.scene-card:hover{transform:translateY(-3px);border-color:rgba(57,226,255,.42);box-shadow:var(--shadow-card),0 0 0 1px rgba(57,226,255,.24);}
.scene-thumb{overflow:hidden;aspect-ratio:16/9;background:var(--bg-700);}
.scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.scene-card:hover .scene-thumb img{transform:scale(1.04);}
.scene-body{padding:22px;}
.scene-body h3{font-size:18px;margin-bottom:10px;}
.scene-body p{font-size:14.8px;color:var(--muted);line-height:1.8;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:10px;max-width:900px;}
.faq-item{
  border-radius:16px;overflow:hidden;
  background:rgba(255,255,255,.05);
  border:1px solid var(--glass-brd);
  transition:border-color .22s ease,background .22s ease;
}
.faq-item:hover{border-color:rgba(57,226,255,.36);background:rgba(255,255,255,.075);}
.faq-item[open]{border-color:rgba(57,226,255,.42);background:rgba(57,226,255,.07);}
.faq-item summary{
  list-style:none;display:flex;align-items:center;gap:14px;
  padding:18px 20px;cursor:pointer;font-size:16px;font-weight:600;color:var(--text);
  min-height:56px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .idx{
  font-size:13px;color:var(--accent);font-variant-numeric:tabular-nums;
  flex:0 0 auto;width:26px;
}
.faq-item summary .q-text{flex:1 1 auto;}
.faq-item summary .icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(57,226,255,.4);color:var(--accent);font-size:12px;
  transition:transform .24s ease,background .24s ease;
}
.faq-item[open] summary .icon{transform:rotate(180deg);background:rgba(57,226,255,.16);}
.faq-answer{padding:0 20px 20px 60px;color:var(--muted);font-size:15px;line-height:1.85;}
@media (max-width:576px){
  .faq-answer{padding:0 18px 18px 18px;}
}

/* ============ 通栏 CTA ============ */
.cta-bar{
  position:relative;overflow:hidden;
  padding:52px 0;margin:0 auto;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  padding:34px 36px;border-radius:var(--r-big);
  background:linear-gradient(120deg,rgba(57,226,255,.13) 0%,rgba(11,27,43,.92) 62%);
  border:1px solid rgba(57,226,255,.32);
  box-shadow:var(--shadow-card);
}
.cta-inner h2{font-size:clamp(20px,2.6vw,28px);margin-bottom:10px;}
.cta-inner p{color:var(--muted);font-size:15px;}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.cta-actions .btn-glow{width:auto;min-width:180px;}
.cta-actions .btn-ghost{min-width:140px;}

/* ============ 页脚 ============ */
.site-footer{
  background:#061019;border-top:1px solid rgba(120,200,255,.14);
  padding:64px 0 0;margin-top:16px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:36px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px;color:#EAF2FF;}
.footer-brand .brand-text{color:#EAF2FF;}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.85;max-width:340px;}
.footer-col h3{font-size:15px;color:#EAF2FF;margin-bottom:16px;font-weight:700;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li a{font-size:14px;color:var(--muted);transition:color .2s ease,padding-left .2s ease;}
.footer-col li a:hover{color:var(--accent);padding-left:4px;}
.footer-col p{font-size:14px;color:var(--muted);line-height:1.85;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  border-top:1px solid rgba(120,200,255,.14);
  padding:22px 0 26px;
  font-size:13px;color:var(--dim);
}
.footer-bottom a{color:var(--dim);}
.footer-bottom a:hover{color:var(--accent);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .guide-layout{grid-template-columns:minmax(0,1fr) 296px;}
}
@media (max-width:991.98px){
  .header-inner{height:66px;gap:16px;}
  .nav-links,.header-tools .search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-tools .btn-cta{display:none;}
  .page-hero{padding:64px 0 58px;}
  .section{padding:64px 0;}
  .guide-layout{grid-template-columns:minmax(0,1fr);}
  .side-col{position:static;}
  .steps-wrap{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step::after{display:none;}
  .stats-band{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-cell:nth-child(2){border-right:0;}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid rgba(120,200,255,.12);}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-inner{padding:28px;}
}
@media (max-width:767.98px){
  .container-x{padding:0 18px;}
  body{font-size:16px;}
  .page-hero{padding:52px 0 48px;}
  .page-hero h1{font-size:clamp(26px,7vw,34px);}
  .hero-lead{font-size:15.5px;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:28px;}
  .guide-card{padding:22px 18px;}
  .guide-card h3{font-size:17px;}
  .guide-num{width:38px;height:38px;border-radius:11px;font-size:14px;}
  .steps-wrap{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .stats-band{grid-template-columns:1fr 1fr;}
  .stat-cell b{font-size:24px;}
  .cta-inner{padding:24px 20px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:34px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:575.98px){
  .hero-meta{gap:8px;}
  .chip{font-size:12px;padding:5px 11px;}
  .stats-band{grid-template-columns:1fr;}
  .stat-cell{border-right:0;border-bottom:1px solid rgba(120,200,255,.12);}
  .stat-cell:last-child{border-bottom:0;}
}

/* roulang page: category2 */
:root{
  --bg-900:#071320;
  --bg-800:#0B1B2B;
  --bg-700:#102438;
  --glass:rgba(255,255,255,.055);
  --glass-strong:rgba(255,255,255,.09);
  --line:rgba(120,200,255,.20);
  --line-soft:rgba(120,200,255,.12);
  --accent:#39E2FF;
  --accent-soft:rgba(57,226,255,.14);
  --amber:#FFB547;
  --teal:#2FD4C4;
  --text:#EAF2FF;
  --muted:#9FB3C8;
  --dim:#6F8499;
  --ink:#0C1E30;
  --white-panel:#FFFFFF;
  --hairline:#E3EAF2;
  --r-sm:12px;
  --r-md:18px;
  --r-lg:22px;
  --r-pill:999px;
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.55);
  --shadow-glow:0 8px 30px -8px rgba(57,226,255,.55);
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg-900);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--accent);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:#7aeeff;}
a:focus-visible,
button:focus-visible,
input:focus-visible,
.accordion-button:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
}
h1,h2,h3,h4{margin:0;font-weight:700;color:#fff;letter-spacing:-.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}

/* ============ 容器 ============ */
.container-x{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}

/* ============ 顶部导航（全站唯一浅色区块） ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--white-panel);
  border-bottom:1px solid var(--hairline);
  box-shadow:0 2px 12px rgba(12,30,48,.06);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:none;
  color:var(--ink);
}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:30px;
  height:30px;
  border-radius:9px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,#0C1E30 0%,#1b4a6b 55%,#39E2FF 140%);
  box-shadow:0 6px 16px -8px rgba(12,30,48,.55);
  flex:none;
}
.brand-mark svg{
  width:20px;
  height:20px;
  fill:#EAF6FF;
}
.brand-text{
  font-size:16.5px;
  font-weight:700;
  letter-spacing:0;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1 1 auto;
}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 13px;
  font-size:15px;
  font-weight:500;
  color:#3d5670;
  border-radius:10px;
  white-space:nowrap;
  transition:color .2s ease,background-color .2s ease;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:13px;
  right:13px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .22s ease;
}
.nav-links a:hover{color:#0C1E30;background:#F2F6FA;}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{
  color:#0C1E30;
  font-weight:700;
  background:rgba(57,226,255,.12);
}
.nav-links a.active::after{transform:scaleX(1);}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:none;
}
.header-search{
  position:relative;
  display:flex;
  align-items:center;
  height:40px;
  width:186px;
  padding:0 14px 0 36px;
  border-radius:var(--r-pill);
  background:#F2F6FA;
  border:1px solid transparent;
  transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.header-search i{
  position:absolute;
  left:14px;
  top:50%;
  transform:translateY(-50%);
  font-size:13px;
  color:#7d93a8;
}
.header-search input{
  width:100%;
  border:0;
  background:transparent;
  font-size:14px;
  color:var(--ink);
  outline:none;
  line-height:1.6;
}
.header-search input::placeholder{color:#8fa3b6;}
.header-search:focus-within{
  border-color:var(--accent);
  background:#fff;
  box-shadow:0 0 0 3px rgba(57,226,255,.18);
}
.btn-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:40px;
  padding:0 20px;
  border:0;
  border-radius:var(--r-pill);
  font-size:14.5px;
  font-weight:600;
  color:#03151f;
  background:linear-gradient(120deg,#39E2FF 0%,#2FD4C4 100%);
  box-shadow:0 8px 22px -12px rgba(57,226,255,.9);
  transition:filter .2s ease,box-shadow .25s ease,transform .2s ease;
  white-space:nowrap;
}
.btn-cta:hover{
  color:#03151f;
  filter:brightness(1.08);
  box-shadow:0 12px 28px -10px rgba(57,226,255,.75);
  transform:translateY(-1px);
}
.btn-cta:active{transform:translateY(0);filter:brightness(.96);}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--hairline);
  border-radius:12px;
  background:#fff;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .25s ease,opacity .25s ease;
}
.site-header.is-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.site-header.is-open .nav-toggle span:nth-child(2){opacity:0;}
.site-header.is-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--hairline);
  background:#fff;
  padding:16px 0 20px;
  box-shadow:0 18px 30px -22px rgba(12,30,48,.55);
}
.site-header.is-open .mobile-drawer{display:block;}
.mobile-drawer .container-x{display:flex;flex-direction:column;gap:10px;}
.mobile-drawer a.drawer-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:46px;
  padding:0 14px;
  border-radius:12px;
  font-size:15.5px;
  font-weight:500;
  color:#31485e;
  background:#F7FAFD;
}
.mobile-drawer a.drawer-link.active{
  color:#0C1E30;
  font-weight:700;
  background:rgba(57,226,255,.14);
}
.mobile-drawer a.drawer-link i{font-size:12px;color:#8fa3b6;}
.mobile-drawer .btn-cta{height:46px;width:100%;margin-top:6px;}
.mobile-drawer .drawer-search{
  position:relative;
  display:flex;
  align-items:center;
  height:44px;
  padding:0 14px 0 38px;
  border-radius:var(--r-pill);
  background:#F2F6FA;
  border:1px solid transparent;
}
.mobile-drawer .drawer-search i{position:absolute;left:15px;font-size:13px;color:#7d93a8;}
.mobile-drawer .drawer-search input{
  width:100%;border:0;background:transparent;font-size:14.5px;color:var(--ink);outline:none;
}
.mobile-drawer .drawer-search:focus-within{border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(57,226,255,.18);}

/* ============ 页头 Hero ============ */
.page-hero{
  position:relative;
  padding:60px 0 64px;
  background-color:var(--bg-900);
  background-image:
    linear-gradient(180deg,rgba(7,19,32,.78) 0%,rgba(7,19,32,.86) 58%,rgba(7,19,32,.95) 100%),
    url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line-soft);
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:auto -10% -60% 40%;
  height:340px;
  background:radial-gradient(closest-side,rgba(57,226,255,.16),transparent 72%);
  pointer-events:none;
}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--dim);
  margin-bottom:22px;
  flex-wrap:wrap;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:#3c556b;}
.crumb .current{color:var(--muted);}
.page-hero h1{
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.24;
  font-weight:700;
  max-width:840px;
}
.hero-lead{
  margin-top:20px;
  max-width:720px;
  font-size:16.5px;
  line-height:1.85;
  color:var(--muted);
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:32px;
  padding:0 14px;
  border-radius:var(--r-pill);
  font-size:13px;
  font-weight:500;
  color:var(--accent);
  background:rgba(57,226,255,.10);
  border:1px solid rgba(57,226,255,.28);
}
.pill.teal{color:var(--teal);background:rgba(47,212,196,.10);border-color:rgba(47,212,196,.28);}
.pill.amber{color:var(--amber);background:rgba(255,181,71,.10);border-color:rgba(255,181,71,.30);}
.pill i{font-size:11px;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section.tight{padding:64px 0;}
.section.alt{background:var(--bg-800);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:28px;
  margin-bottom:36px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(24px,3.2vw,36px);
  line-height:1.3;
}
.section-head .sub{
  margin-top:12px;
  font-size:15.5px;
  color:var(--muted);
  max-width:640px;
}
.section-head .head-link{
  font-size:14px;
  font-weight:600;
  color:var(--accent);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.section-head .head-link:hover{color:#8bf2ff;}

/* ============ 标签筛选条 ============ */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:6px 0 4px;
  margin-bottom:34px;
}
.filter-chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  min-height:40px;
  padding:0 18px;
  border-radius:var(--r-pill);
  font-size:14px;
  font-weight:500;
  color:var(--muted);
  background:var(--glass);
  border:1px solid var(--line-soft);
  cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease,transform .2s ease;
}
.filter-chip:hover{
  color:var(--text);
  border-color:var(--line);
  background:rgba(255,255,255,.08);
  transform:translateY(-1px);
}
.filter-chip.is-active{
  color:#03151f;
  font-weight:700;
  background:linear-gradient(120deg,#39E2FF,#2FD4C4);
  border-color:transparent;
  box-shadow:0 8px 22px -14px rgba(57,226,255,.95);
}
.filter-chip:active{transform:translateY(0);}

/* ============ 两列问答卡 ============ */
.q-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
  align-items:start;
}
.q-card{
  position:relative;
  padding:24px 24px 20px;
  border-radius:var(--r-md);
  background:var(--glass);
  border:1px solid var(--line-soft);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(120%);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease,background-color .25s ease;
}
.q-card:hover{
  transform:translateY(-3px);
  border-color:rgba(57,226,255,.34);
  background:rgba(255,255,255,.075);
  box-shadow:0 22px 46px -22px rgba(0,0,0,.65),0 0 0 1px rgba(57,226,255,.24);
}
.q-head{
  display:flex;
  align-items:flex-start;
  gap:12px;
  margin-bottom:14px;
}
.q-index{
  flex:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:34px;
  height:26px;
  padding:0 8px;
  border-radius:8px;
  font-size:12.5px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--accent);
  background:rgba(57,226,255,.10);
  border:1px solid rgba(57,226,255,.26);
}
.q-head h3{
  flex:1 1 auto;
  font-size:19px;
  line-height:1.5;
  font-weight:600;
}
.q-arrow{
  flex:none;
  width:30px;
  height:30px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--accent);
  background:rgba(57,226,255,.08);
  border:1px solid rgba(57,226,255,.22);
  font-size:12px;
  transition:transform .25s ease,background-color .25s ease;
}
.q-card:hover .q-arrow{
  transform:translateX(3px);
  background:rgba(57,226,255,.18);
}
.q-card p{
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}
.q-meta{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid rgba(120,200,255,.10);
}
.badge-soft{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 11px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  font-weight:500;
  color:var(--teal);
  background:rgba(47,212,196,.10);
  border:1px solid rgba(47,212,196,.24);
}
.badge-soft.blue{color:var(--accent);background:rgba(57,226,255,.10);border-color:rgba(57,226,255,.24);}
.badge-soft.amber{color:var(--amber);background:rgba(255,181,71,.10);border-color:rgba(255,181,71,.26);}
.q-time{
  font-size:13px;
  color:var(--dim);
  font-variant-numeric:tabular-nums;
}

/* ============ 自查清单（图文） ============ */
.check-wrap{
  display:grid;
  grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
  gap:44px;
  align-items:center;
}
.check-figure{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.check-figure img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  transition:transform .5s ease;
}
.check-figure:hover img{transform:scale(1.03);}
.check-figure figcaption{
  position:absolute;
  left:16px;
  bottom:16px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:32px;
  padding:0 14px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  color:var(--text);
  background:rgba(7,19,32,.72);
  border:1px solid var(--line);
  backdrop-filter:blur(8px);
}
.check-list li{
  display:flex;
  gap:14px;
  padding:18px 0;
  border-bottom:1px solid rgba(120,200,255,.12);
}
.check-list li:last-child{border-bottom:0;}
.check-list .num{
  flex:none;
  width:32px;
  height:32px;
  border-radius:10px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--amber);
  background:rgba(255,181,71,.10);
  border:1px solid rgba(255,181,71,.28);
}
.check-list strong{
  display:block;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  margin-bottom:4px;
}
.check-list p{
  font-size:14.5px;
  color:var(--muted);
  line-height:1.8;
}

/* ============ 常见问题 accordion ============ */
.acc .accordion-item{
  background:var(--glass);
  border:1px solid var(--line-soft);
  border-radius:var(--r-md);
  margin-bottom:12px;
  overflow:hidden;
  backdrop-filter:blur(14px) saturate(120%);
  transition:border-color .22s ease,background-color .22s ease;
}
.acc .accordion-item:hover{
  border-color:rgba(57,226,255,.30);
  background:rgba(255,255,255,.075);
}
.acc .accordion-item:last-child{margin-bottom:0;}
.acc .accordion-button{
  display:flex;
  align-items:center;
  gap:14px;
  width:100%;
  padding:20px 22px;
  font-family:inherit;
  font-size:16.5px;
  font-weight:600;
  line-height:1.6;
  color:var(--text);
  background:transparent;
  border:0;
  border-radius:0;
  box-shadow:none;
}
.acc .accordion-button:not(.collapsed){
  color:var(--accent);
  background:rgba(57,226,255,.07);
  box-shadow:none;
}
.acc .accordion-button:focus,
.acc .accordion-button:focus-visible{
  box-shadow:none;
  outline:2px solid var(--accent);
  outline-offset:-2px;
  border-radius:var(--r-md);
}
.acc .accordion-button::after{
  content:"";
  width:12px;
  height:12px;
  margin-left:auto;
  border-right:2px solid var(--accent);
  border-bottom:2px solid var(--accent);
  transform:rotate(45deg);
  background-image:none;
  transition:transform .22s ease;
  flex:none;
}
.acc .accordion-button:not(.collapsed)::after{
  transform:rotate(-135deg);
}
.acc .accordion-body{
  padding:2px 22px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}

/* ============ 通栏 CTA ============ */
.cta-band{
  position:relative;
  padding:56px 0;
  background:linear-gradient(120deg,rgba(16,36,56,.92),rgba(11,27,43,.96));
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:-40% auto auto -10%;
  width:520px;
  height:520px;
  background:radial-gradient(closest-side,rgba(57,226,255,.14),transparent 70%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  padding:34px 34px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.cta-inner h2{
  font-size:clamp(22px,2.8vw,30px);
  line-height:1.4;
  max-width:640px;
}
.cta-inner .cta-note{
  margin-top:10px;
  font-size:14px;
  color:var(--dim);
}
.btn-glow{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  height:50px;
  padding:0 30px;
  border-radius:var(--r-pill);
  font-size:15.5px;
  font-weight:700;
  color:#03151f;
  background:linear-gradient(120deg,#39E2FF 0%,#2FD4C4 100%);
  border:0;
  box-shadow:var(--shadow-glow);
  transition:filter .2s ease,box-shadow .25s ease,transform .2s ease;
  white-space:nowrap;
}
.btn-glow:hover{
  color:#03151f;
  filter:brightness(1.08);
  box-shadow:0 14px 36px -10px rgba(57,226,255,.78);
  transform:translateY(-2px);
}
.btn-glow:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  height:50px;
  padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  color:var(--text);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(120,200,255,.30);
  transition:border-color .2s ease,background-color .2s ease,color .2s ease,transform .2s ease;
  white-space:nowrap;
}
.btn-ghost:hover{
  color:#fff;
  border-color:var(--accent);
  background:rgba(57,226,255,.10);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0);}

/* ============ 页脚 ============ */
.site-footer{
  background:#061019;
  border-top:1px solid rgba(120,200,255,.12);
  padding:64px 0 0;
  color:var(--muted);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.25fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{
  margin-bottom:16px;
  color:#fff;
}
.footer-brand .brand-text{color:#fff;font-size:16.5px;}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  color:var(--dim);
  max-width:340px;
}
.footer-col h3{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{
  font-size:14px;
  color:var(--muted);
  transition:color .2s ease,padding-left .2s ease;
}
.footer-col ul a:hover{color:var(--accent);padding-left:3px;}
.footer-col p{
  font-size:14px;
  line-height:1.85;
  color:var(--dim);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:20px 0 26px;
  border-top:1px solid rgba(120,200,255,.12);
  font-size:13px;
  color:var(--dim);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .header-search{width:160px;}
  .nav-links a{padding:0 10px;font-size:14.5px;}
  .check-wrap{gap:32px;}
}
@media (max-width:991px){
  .nav-links,.header-search{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{gap:14px;justify-content:space-between;}
  .header-actions{margin-left:auto;}
  .section{padding:64px 0;}
  .section.tight{padding:48px 0;}
  .q-grid{grid-template-columns:1fr;gap:18px;}
  .check-wrap{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{padding:26px 24px;}
  .page-hero{padding:44px 0 52px;}
}
@media (max-width:767px){
  .container-x{padding:0 18px;}
  .brand-text{font-size:15px;}
  .page-hero h1{font-size:clamp(26px,7vw,34px);}
  .hero-lead{font-size:15.5px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:26px;}
  .q-card{padding:20px 18px 18px;}
  .q-head h3{font-size:17.5px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:20px;}
  .btn-glow,.btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .acc .accordion-button{font-size:15.5px;padding:18px 18px;}
  .acc .accordion-body{padding:0 18px 18px;font-size:14.5px;}
}
@media (max-width:575px){
  .filter-bar{gap:8px;}
  .filter-chip{min-height:38px;padding:0 14px;font-size:13.5px;}
  .hero-tags .pill{font-size:12px;}
  .check-figure img{aspect-ratio:4/3;}
}