/* roulang page: index */
:root{
  --bg-0:#060B10;
  --bg-1:#0A131B;
  --bg-2:#0E1C26;
  --primary:#3B6EF6;
  --primary-deep:#2E56C8;
  --primary-soft:rgba(59,110,246,.16);
  --accent:#2BD9C2;
  --amber:#FFB03A;
  --danger:#FF6B6B;
  --text-1:#E8F2F6;
  --text-2:#A7BBC7;
  --text-3:#6E8493;
  --line:rgba(120,215,225,.12);
  --line-strong:rgba(120,215,225,.28);
  --glass:rgba(16,34,46,.55);
  --radius-card:18px;
  --radius-btn:12px;
  --radius-img:14px;
  --shadow-1:0 2px 8px rgba(0,0,0,.28);
  --shadow-2:0 14px 36px rgba(0,0,0,.38);
  --glow:0 0 24px rgba(59,110,246,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:260ms;
  --sidebar-w:236px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text-1);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(120,215,225,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,215,225,.04) 1px,transparent 1px);
  background-size:24px 24px;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

/* ---------- 骨架 ---------- */
.app{display:flex;min-height:100vh;position:relative;z-index:1}
.site-main{
  margin-left:var(--sidebar-w);
  flex:1 1 auto;
  min-width:0;
  display:flex;
  flex-direction:column;
}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 32px}

/* ---------- 左侧导航 ---------- */
.side-nav{
  position:fixed;
  top:0;left:0;
  width:var(--sidebar-w);
  height:100vh;
  display:flex;
  flex-direction:column;
  gap:18px;
  padding:26px 20px 22px;
  background:linear-gradient(180deg,rgba(14,28,38,.94),rgba(6,11,16,.97));
  border-right:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  z-index:60;
  transition:width var(--dur) var(--ease);
}
.brand{display:flex;align-items:center;gap:12px;padding:4px 4px 0}
.brand__mark{
  position:relative;
  width:38px;height:38px;
  flex:0 0 auto;
  border-radius:11px;
  background:linear-gradient(150deg,rgba(59,110,246,.35),rgba(43,217,194,.16));
  border:1px solid var(--line-strong);
  display:grid;
  place-items:center;
}
.brand__mark::before{
  content:"";
  width:16px;height:2px;
  border-radius:2px;
  background:var(--accent);
  box-shadow:
    0 0 10px rgba(43,217,194,.9),
    0 7px 0 rgba(43,217,194,.5),
    0 -7px 0 rgba(43,217,194,.78);
}
.brand__text{display:flex;flex-direction:column;min-width:0}
.brand__text strong{font-size:15px;font-weight:700;letter-spacing:.01em;line-height:1.4}
.brand__text small{font-size:11px;color:var(--text-3);letter-spacing:.02em}
.side-nav__divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:2px 0}
.side-nav__menu{display:flex;flex-direction:column;gap:6px;flex:1 1 auto;overflow-y:auto;scrollbar-width:none}
.side-nav__menu::-webkit-scrollbar{display:none}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  padding:11px 14px;
  border-radius:12px;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  border:1px solid transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.nav-item i{width:18px;text-align:center;font-size:15px;color:var(--text-3);transition:color var(--dur) var(--ease)}
.nav-item:hover{background:rgba(120,215,225,.07);color:var(--primary);border-color:var(--line)}
.nav-item:hover i{color:var(--primary)}
.nav-item.is-active{
  background:var(--glass);
  color:var(--text-1);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-1);
}
.nav-item.is-active i{color:var(--accent)}
.nav-item.is-active::before{
  content:"";
  position:absolute;
  left:-20px;top:11px;bottom:11px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--primary);
  box-shadow:0 0 14px rgba(59,110,246,.9);
}
.side-nav__foot{display:flex;flex-direction:column;gap:12px}
.side-nav__privacy{font-size:12px;color:var(--text-3);letter-spacing:.02em;transition:color var(--dur) var(--ease)}
.side-nav__privacy:hover{color:var(--accent)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  white-space:nowrap;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn i{font-size:14px}
.btn--primary{background:linear-gradient(120deg,var(--primary),var(--primary-deep));color:#fff;box-shadow:0 10px 24px rgba(59,110,246,.32)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(59,110,246,.48),var(--glow)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{border-color:var(--line-strong);color:var(--text-1);background:rgba(16,34,46,.4)}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(0)}
.btn--glow{
  width:100%;
  background:linear-gradient(120deg,rgba(59,110,246,.95),rgba(43,217,194,.88));
  color:#04121a;
  font-weight:700;
  box-shadow:0 0 22px rgba(59,110,246,.45);
}
.btn--glow:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(43,217,194,.55)}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}

/* ---------- 通用小件 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  color:var(--accent);
  background:rgba(43,217,194,.1);
  border:1px solid rgba(43,217,194,.24);
}
.badge--soft{color:var(--text-2);background:rgba(120,215,225,.07);border-color:var(--line)}
.badge--amber{color:var(--amber);background:rgba(255,176,58,.1);border-color:rgba(255,176,58,.26)}
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--accent);transition:gap var(--dur) var(--ease),color var(--dur) var(--ease)}
.link-more:hover{gap:12px;color:var(--primary)}
.divider-glow{height:1px;background:linear-gradient(90deg,transparent,rgba(59,110,246,.55),rgba(43,217,194,.4),transparent)}

/* ---------- 板块 ---------- */
.section{position:relative;padding:96px 0;z-index:1}
.section--alt{background:linear-gradient(180deg,rgba(10,19,27,.7),rgba(6,11,16,0))}
.section__head{max-width:760px;margin-bottom:48px}
.section__head--row{
  max-width:none;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.section__eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--accent);
  margin-bottom:14px;
}
.section__eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--accent);box-shadow:0 0 10px rgba(43,217,194,.9)}
.section h2{
  font-size:clamp(24px,2.4vw,32px);
  font-weight:700;
  line-height:1.35;
  letter-spacing:-.01em;
}
.section__lead{margin-top:14px;color:var(--text-2);font-size:15px;max-width:620px}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  min-height:clamp(560px,82vh,820px);
  display:flex;
  align-items:center;
  padding:104px 0 88px;
}
.hero__bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  opacity:.36;
}
.hero__bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,11,16,.84) 0%,rgba(6,11,16,.9) 58%,var(--bg-0) 100%);
}
.hero__scan{
  position:absolute;
  top:-30%;bottom:-30%;left:-40%;width:60%;
  background:linear-gradient(90deg,transparent,rgba(43,217,194,.09),transparent);
  transform:rotate(12deg);
  animation:sweep 12s linear infinite;
  pointer-events:none;
}
@keyframes sweep{
  0%{left:-45%}
  100%{left:115%}
}
.hero__inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.hero__title{
  font-size:clamp(30px,4.2vw,52px);
  font-weight:700;
  line-height:1.25;
  letter-spacing:-.01em;
  margin:22px 0 18px;
}
.hero__title em{
  font-style:normal;
  background:linear-gradient(100deg,var(--accent),var(--primary));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero__sub{color:var(--text-2);font-size:16px;max-width:520px}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}
.hero__trust{
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  margin-top:34px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.hero__trust li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2)}
.hero__trust .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 10px rgba(43,217,194,.9);
  flex:0 0 auto;
}
.hero__card{
  position:relative;
  border-radius:22px;
  padding:18px;
  box-shadow:var(--shadow-2);
}
.hero__card img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:var(--radius-img);
}
.hero__float{
  position:absolute;
  left:-18px;
  bottom:34px;
  display:flex;
  align-items:center;
  gap:12px;
  padding:14px 18px;
  border-radius:14px;
  background:rgba(10,19,27,.9);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-2);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.hero__float strong{display:block;font-size:14px;font-weight:600}
.hero__float small{display:block;font-size:12px;color:var(--text-3)}
.pulse{
  width:10px;height:10px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 0 rgba(43,217,194,.7);
  animation:pulse 2.4s infinite;
  flex:0 0 auto;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(43,217,194,.6)}
  70%{box-shadow:0 0 0 12px rgba(43,217,194,0)}
  100%{box-shadow:0 0 0 0 rgba(43,217,194,0)}
}

/* ---------- 痛点 ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.pain-card{
  position:relative;
  border-radius:var(--radius-card);
  padding:28px 26px;
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.pain-card:nth-child(1){grid-column:span 5}
.pain-card:nth-child(2){grid-column:span 7}
.pain-card:nth-child(3){grid-column:span 7}
.pain-card:nth-child(4){grid-column:span 5}
.pain-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-2)}
.pain-card h3{font-size:19px;font-weight:600;line-height:1.5;margin-bottom:10px}
.pain-card p{color:var(--text-2);font-size:14px}
.pain-card__link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:18px;
  font-size:13px;font-weight:600;color:var(--accent);
  transition:gap var(--dur) var(--ease);
}
.pain-card__link:hover{gap:12px}
.pain-card__idx{
  position:absolute;top:22px;right:24px;
  font-size:13px;font-weight:700;
  color:rgba(120,215,225,.35);
  letter-spacing:.06em;
}

/* ---------- Bento 方案 ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.bento__main{
  grid-column:span 7;
  position:relative;
  overflow:hidden;
  border-radius:22px;
  padding:32px;
  background:linear-gradient(155deg,rgba(16,34,46,.85),rgba(8,16,22,.9));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-2);
}
.bento__main h3{font-size:22px;font-weight:700;margin-bottom:12px}
.bento__main > p{color:var(--text-2);font-size:15px;max-width:520px}
.bento__main img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--radius-img);
  margin:24px 0 26px;
  filter:saturate(.9);
}
.steps{display:grid;gap:14px}
.step{
  display:flex;
  gap:16px;
  align-items:flex-start;
  padding:16px 18px;
  border-radius:14px;
  background:rgba(6,11,16,.5);
  border:1px solid var(--line);
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.step:hover{border-color:rgba(59,110,246,.45);background:rgba(59,110,246,.07)}
.step__no{
  flex:0 0 auto;
  width:28px;height:28px;
  border-radius:9px;
  display:grid;place-items:center;
  font-size:13px;font-weight:700;
  color:var(--accent);
  background:rgba(43,217,194,.1);
  border:1px solid rgba(43,217,194,.28);
}
.step strong{display:block;font-size:15px;font-weight:600}
.step span{display:block;font-size:13px;color:var(--text-3);line-height:1.7}
.bento__side{grid-column:span 5;display:grid;gap:20px;align-content:start}
.bento__card{
  border-radius:22px;
  padding:30px 28px;
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.bento__card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.bento__icon{
  width:44px;height:44px;
  border-radius:13px;
  display:grid;place-items:center;
  font-size:17px;
  color:var(--primary);
  background:var(--primary-soft);
  border:1px solid rgba(59,110,246,.3);
  margin-bottom:18px;
}
.bento__card h3{font-size:19px;font-weight:600;margin-bottom:10px}
.bento__card p{font-size:14px;color:var(--text-2)}

/* ---------- 数据 ---------- */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  background:var(--line);
  gap:1px;
}
.metric{
  background:linear-gradient(180deg,rgba(14,28,38,.9),rgba(10,19,27,.96));
  padding:34px 24px;
  text-align:center;
  transition:background var(--dur) var(--ease);
}
.metric:hover{background:linear-gradient(180deg,rgba(59,110,246,.12),rgba(10,19,27,.96))}
.metric__num{
  font-size:clamp(30px,3.4vw,42px);
  font-weight:700;
  line-height:1.1;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.metric__num small{font-size:15px;font-weight:600;color:var(--text-2);margin-left:4px}
.metric__label{margin-top:10px;font-size:15px;font-weight:600}
.metric__note{margin-top:6px;font-size:12px;color:var(--text-3);line-height:1.7}

/* ---------- 最新信息 ---------- */
.news-list{display:grid;gap:14px}
.news-card{
  position:relative;
  display:grid;
  grid-template-columns:4px 1fr auto;
  gap:20px;
  align-items:center;
  padding:22px 26px;
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.news-card--featured{grid-template-columns:4px 200px 1fr auto;align-items:stretch}
.news-card__bar{
  border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
  box-shadow:0 0 12px rgba(59,110,246,.7);
}
.news-card__thumb{border-radius:var(--radius-img);overflow:hidden;background:rgba(6,11,16,.7)}
.news-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--dur) var(--ease)}
.news-card__title{font-size:17px;font-weight:600;line-height:1.55;transition:color var(--dur) var(--ease)}
.news-card__desc{margin-top:8px;font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{display:flex;align-items:center;gap:12px;margin-top:14px;flex-wrap:wrap}
.news-card__meta time{font-size:12px;color:var(--text-3)}
.news-card__arrow{font-size:18px;color:var(--text-3);transition:transform var(--dur) var(--ease),color var(--dur) var(--ease)}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-2)}
.news-card:hover .news-card__title{color:var(--accent)}
.news-card:hover .news-card__arrow{transform:translateX(4px);color:var(--accent)}
.news-card:hover .news-card__thumb img{transform:scale(1.03)}
.news-empty{
  border-radius:var(--radius-card);
  padding:56px 28px;
  text-align:center;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:12px;
}
.news-empty i{font-size:26px;color:var(--text-3)}
.news-empty p{font-size:15px;color:var(--text-2)}

/* ---------- 反馈 ---------- */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.voice-card{
  border-radius:var(--radius-card);
  padding:28px 26px;
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.voice-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.voice-card__quote{font-size:15px;line-height:1.9;color:var(--text-1)}
.voice-card__who{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.voice-card__avatar{
  width:36px;height:36px;border-radius:11px;
  display:grid;place-items:center;
  font-size:14px;font-weight:700;color:var(--accent);
  background:rgba(43,217,194,.1);
  border:1px solid rgba(43,217,194,.24);
  flex:0 0 auto;
}
.voice-card__who strong{display:block;font-size:14px;font-weight:600}
.voice-card__who small{display:block;font-size:12px;color:var(--text-3)}
.voice-card__stars{color:var(--amber);font-size:12px;letter-spacing:2px;margin-bottom:14px}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.55fr;gap:56px;align-items:start}
.faq-aside h2{font-size:clamp(24px,2.4vw,32px);font-weight:700;line-height:1.35}
.faq-aside p{margin-top:14px;color:var(--text-2);font-size:15px}
.faq-list{display:grid;gap:12px}
.faq-item{
  border-radius:14px;
  background:var(--glass);
  border:1px solid var(--line);
  overflow:hidden;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  transition:border-color var(--dur) var(--ease);
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.is-open{border-color:rgba(59,110,246,.45)}
.faq-q{
  position:relative;
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  font-size:17px;
  font-weight:600;
  text-align:left;
  color:var(--text-1);
  line-height:1.6;
}
.faq-q i{font-size:13px;color:var(--text-3);transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);flex:0 0 auto}
.faq-item.is-open .faq-q::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--primary);
  box-shadow:0 0 12px rgba(59,110,246,.8);
}
.faq-item.is-open .faq-q i{transform:rotate(90deg);color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a p{padding:0 22px 20px;font-size:15px;color:var(--text-2);line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  padding:52px 48px;
  background:
    radial-gradient(120% 160% at 12% 0%,rgba(59,110,246,.22),transparent 60%),
    linear-gradient(120deg,rgba(16,34,46,.92),rgba(6,11,16,.96));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-2);
  display:grid;
  grid-template-columns:1.4fr .8fr;
  gap:36px;
  align-items:center;
}
.cta-band__bars{position:absolute;top:0;left:0;right:0;display:flex;gap:6px;padding:0 48px}
.cta-band__bars span{height:3px;border-radius:3px;flex:1;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:.5}
.cta-band h2{font-size:clamp(22px,2.3vw,30px);font-weight:700;line-height:1.4}
.cta-band p{margin-top:12px;color:var(--text-2);font-size:15px;max-width:560px}
.cta-band__actions{display:flex;flex-direction:column;gap:14px}
.cta-band__note{font-size:12px;color:var(--text-3);text-align:center}

/* ---------- 弹层 ---------- */
.modal-mask{
  position:fixed;
  inset:0;
  z-index:200;
  display:none;
  align-items:center;
  justify-content:center;
  padding:24px;
  background:rgba(3,7,11,.72);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.modal-mask.is-open{display:flex}
.modal-card{
  width:min(560px,100%);
  max-height:88vh;
  overflow-y:auto;
  padding:32px;
  border-radius:20px;
  background:rgba(14,28,38,.96);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-2);
  animation:modalIn .24s var(--ease);
}
@keyframes modalIn{
  from{opacity:0;transform:scale(.96) translateY(12px)}
  to{opacity:1;transform:none}
}
.modal-card__head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:22px}
.modal-card__head h2{font-size:21px;font-weight:700;line-height:1.45}
.modal-card__head p{margin-top:8px;font-size:13px;color:var(--text-3)}
.modal-close{
  width:36px;height:36px;flex:0 0 auto;
  border-radius:10px;
  display:grid;place-items:center;
  color:var(--text-3);
  border:1px solid var(--line);
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.modal-close:hover{color:var(--accent);border-color:var(--line-strong)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;font-weight:500}
.field input,.field select,.field textarea{
  width:100%;
  padding:12px 14px;
  font-size:15px;
  font-family:inherit;
  color:var(--text-1);
  background:rgba(6,11,16,.72);
  border:1px solid var(--line);
  border-radius:10px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.field textarea{min-height:96px;resize:vertical;line-height:1.8}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(59,110,246,.22)}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--danger);box-shadow:0 0 0 3px rgba(255,107,107,.14)}
.field__err{display:none;margin-top:6px;font-size:12px;color:var(--danger)}
.field.has-error .field__err{display:block}
.check-field{display:flex;align-items:flex-start;gap:10px;margin:6px 0 20px;font-size:13px;color:var(--text-2);line-height:1.7}
.check-field input{width:16px;height:16px;margin-top:4px;flex:0 0 auto;accent-color:var(--primary)}
.check-field a{color:var(--accent);text-decoration:underline}
.form-tip{font-size:12px;color:var(--text-3);text-align:center;margin-top:14px;line-height:1.7}
.form-ok{
  display:none;
  margin-top:16px;
  padding:14px 16px;
  border-radius:12px;
  font-size:14px;
  color:var(--accent);
  background:rgba(43,217,194,.1);
  border:1px solid rgba(43,217,194,.28);
}
.form-ok.is-show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:auto;
  padding:64px 0 26px;
  background:var(--bg-0);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(59,110,246,.7),rgba(43,217,194,.6),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand__mark{width:34px;height:34px}
.footer-brand strong{font-size:15px;font-weight:700}
.site-footer p{font-size:13px;color:var(--text-3);line-height:1.9}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--text-1)}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:13px;color:var(--text-3);transition:color var(--dur) var(--ease),transform var(--dur) var(--ease);display:inline-block}
.footer-col a:hover{color:var(--primary);transform:translateX(2px)}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12px;
  color:var(--text-3);
}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:56px;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  background:rgba(10,19,27,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  z-index:120;
}
.topbar .brand__text strong{font-size:14px}
.hamburger{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:12px;
  border:1px solid var(--line);
  color:var(--text-2);
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.hamburger:hover{color:var(--accent);border-color:var(--line-strong)}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(3,7,11,.7);
  backdrop-filter:blur(4px);
  -webkit-backdrop-filter:blur(4px);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);
  z-index:130;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;
  top:0;right:0;
  width:min(320px,86vw);
  height:100vh;
  padding:26px 22px;
  display:flex;
  flex-direction:column;
  gap:18px;
  background:linear-gradient(180deg,rgba(14,28,38,.98),rgba(6,11,16,.99));
  border-left:1px solid var(--line-strong);
  transform:translateX(104%);
  transition:transform var(--dur) var(--ease);
  z-index:140;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer__close{
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:11px;
  border:1px solid var(--line);
  color:var(--text-3);
  transition:color var(--dur) var(--ease);
}
.drawer__close:hover{color:var(--accent)}
.drawer__menu{display:flex;flex-direction:column;gap:8px;flex:1 1 auto}
.drawer__privacy{font-size:12px;color:var(--text-3)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sidebar-w:200px}
  .container{max-width:1040px}
  .hero__inner{gap:40px}
}
@media (max-width:1023px){
  :root{--sidebar-w:72px}
  .side-nav{padding:20px 12px;align-items:center;gap:14px}
  .brand{justify-content:center;padding:0}
  .brand__text{display:none}
  .nav-item{justify-content:center;padding:12px;gap:0}
  .nav-item__label{display:none}
  .nav-item.is-active::before{left:-12px}
  .nav-item:hover::after{
    content:attr(data-label);
    position:absolute;
    left:calc(100% + 12px);
    top:50%;
    transform:translateY(-50%);
    padding:6px 12px;
    border-radius:8px;
    font-size:13px;
    font-weight:500;
    color:var(--text-1);
    background:var(--bg-2);
    border:1px solid var(--line-strong);
    white-space:nowrap;
    z-index:80;
    box-shadow:var(--shadow-2);
  }
  .side-nav__cta{padding:0;width:44px;height:44px}
  .side-nav__cta .cta-label{display:none}
  .side-nav__privacy{font-size:11px;text-align:center}
  .hero__inner{grid-template-columns:1fr;gap:40px}
  .hero{padding:72px 0 64px;min-height:auto}
  .bento__main{grid-column:span 12}
  .bento__side{grid-column:span 12;grid-template-columns:repeat(2,1fr)}
  .voice-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr;padding:40px 32px}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .section{padding:72px 0}
}
@media (max-width:767px){
  .side-nav{display:none}
  .site-main{margin-left:0;padding-top:56px}
  .topbar{display:flex}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section__head{margin-bottom:32px}
  .hero{padding:40px 0 48px}
  .hero__title{margin:18px 0 14px}
  .hero__actions{gap:10px}
  .hero__actions .btn{flex:1 1 auto}
  .hero__float{left:0;bottom:16px;padding:12px 14px}
  .pain-grid{grid-template-columns:1fr}
  .pain-card:nth-child(n){grid-column:span 12}
  .bento__side{grid-template-columns:1fr}
  .bento__main{padding:24px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .metric{padding:24px 16px}
  .voice-grid{grid-template-columns:1fr}
  .news-card,.news-card--featured{
    grid-template-columns:1fr auto;
    gap:14px;
    padding:18px 18px;
    border-left:3px solid var(--primary);
  }
  .news-card__bar{display:none}
  .news-card__thumb{display:none}
  .cta-band{padding:32px 22px;border-radius:20px}
  .cta-band__bars{padding:0 22px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .modal-mask{padding:16px;align-items:flex-start}
  .modal-card{padding:24px;max-height:92vh}
  .faq-q{font-size:16px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px}
}
@media (max-width:575px){
  .metrics{grid-template-columns:1fr}
  .metric{border-bottom:1px solid var(--line)}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .hero__scan{display:none}
}

.news-card__content{display:block;min-width:0}
.news-card__title{display:block}
.news-card__desc{display:-webkit-box}

/* roulang page: article */
:root{
  --bg-0:#060B10;
  --bg-1:#0A131B;
  --bg-2:#0E1C26;
  --glass:rgba(16,34,46,.55);
  --glass-2:rgba(18,38,52,.78);
  --line:rgba(120,215,225,.12);
  --line-2:rgba(120,215,225,.24);
  --primary:#3B6EF6;
  --primary-2:#5B8BFF;
  --primary-soft:rgba(59,110,246,.16);
  --accent:#2BD9C2;
  --amber:#FFB03A;
  --text:#E8F2F6;
  --text-2:#A7BBC7;
  --text-3:#6E8493;
  --danger:#FF6B6B;
  --r-card:18px;
  --r-btn:12px;
  --r-img:14px;
  --sh-1:0 2px 8px rgba(0,0,0,.28);
  --sh-2:0 14px 36px rgba(0,0,0,.38);
  --sh-glow:0 0 24px rgba(59,110,246,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-w:236px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(120,215,225,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,215,225,.04) 1px,transparent 1px);
  background-size:24px 24px,24px 24px;
}
h1,h2,h3,h4,h5,h6{font-family:inherit;color:var(--text);letter-spacing:-.01em;margin:0;}
p{margin:0 0 1.25em;}
a{color:var(--primary-2);text-decoration:none;transition:color .24s var(--ease),opacity .24s var(--ease);}
a:hover{color:var(--accent);}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 32px;}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--nav-w);
  z-index:80;
  display:flex;
  flex-direction:column;
  gap:20px;
  padding:26px 18px 22px;
  background:linear-gradient(180deg,rgba(10,19,27,.96),rgba(6,11,16,.98));
  border-right:1px solid var(--line);
  backdrop-filter:blur(18px);
  transition:width .26s var(--ease);
}
.side-nav::after{
  content:"";
  position:absolute;
  top:0;right:-1px;width:1px;height:100%;
  background:linear-gradient(180deg,transparent,rgba(43,217,194,.45),rgba(59,110,246,.4),transparent);
}
.brand{display:flex;align-items:center;gap:12px;padding:6px 6px 0;}
.brand__mark{
  position:relative;
  flex:0 0 auto;
  width:38px;height:38px;
  border-radius:11px;
  background:linear-gradient(145deg,rgba(59,110,246,.35),rgba(43,217,194,.22));
  border:1px solid var(--line-2);
  box-shadow:0 0 18px rgba(59,110,246,.35);
}
.brand__mark::before{
  content:"";
  position:absolute;left:9px;right:9px;top:12px;height:3px;border-radius:2px;
  background:var(--accent);
  box-shadow:0 6px 0 rgba(43,217,194,.55),0 12px 0 rgba(43,217,194,.28);
}
.brand__mark::after{
  content:"";
  position:absolute;right:6px;top:6px;width:6px;height:6px;border-radius:50%;
  background:var(--amber);
  box-shadow:0 0 10px rgba(255,176,58,.8);
}
.brand__text{display:flex;flex-direction:column;line-height:1.35;}
.brand__text strong{font-size:15px;font-weight:700;letter-spacing:.01em;}
.brand__text span{font-size:12px;color:var(--text-3);}
.nav-divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-2),transparent);margin:2px 4px;}
.side-nav__menu{display:flex;flex-direction:column;gap:6px;flex:1 1 auto;overflow-y:auto;overflow-x:hidden;padding:2px;}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;
  border-radius:var(--r-btn);
  color:var(--text-2);
  font-size:15px;font-weight:500;
  border:1px solid transparent;
  transition:all .24s var(--ease);
}
.nav-item i{width:20px;text-align:center;font-size:15px;color:var(--text-3);transition:color .24s var(--ease);}
.nav-item:hover{background:rgba(120,215,225,.06);border-color:var(--line);color:var(--text);transform:translateX(2px);}
.nav-item:hover i{color:var(--accent);}
.nav-item.is-active{background:var(--glass);border-color:var(--line-2);color:var(--text);box-shadow:var(--sh-1);}
.nav-item.is-active i{color:var(--accent);}
.nav-item.is-active::before{
  content:"";position:absolute;left:-2px;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:3px;
  background:linear-gradient(180deg,var(--accent),var(--primary));
  box-shadow:0 0 12px rgba(43,217,194,.7);
}
.nav-item__label{white-space:nowrap;}
.side-nav__foot{display:flex;flex-direction:column;gap:12px;padding:0 4px;}
.btn-glow{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;
  padding:12px 16px;
  border:none;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;color:#F4FBFF;
  background:linear-gradient(120deg,var(--primary),#2E5BD8 55%,var(--accent));
  box-shadow:var(--sh-glow);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),filter .24s var(--ease);
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(59,110,246,.6);filter:brightness(1.06);}
.btn-glow:active{transform:translateY(0);box-shadow:0 0 14px rgba(59,110,246,.4);}
.nav-fine{font-size:12px;color:var(--text-3);text-align:center;}
.nav-fine a{color:var(--text-3);}
.nav-fine a:hover{color:var(--accent);}

/* ---------- 移动端顶部条 & 抽屉 ---------- */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:56px;z-index:90;
  align-items:center;justify-content:space-between;
  padding:0 16px;
  background:rgba(8,15,21,.86);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.topbar__brand{display:flex;align-items:center;gap:10px;}
.topbar__brand .brand__mark{width:32px;height:32px;border-radius:9px;}
.topbar__brand .brand__mark::before{left:7px;right:7px;top:10px;height:2px;box-shadow:0 5px 0 rgba(43,217,194,.55),0 10px 0 rgba(43,217,194,.28);}
.topbar__brand strong{font-size:14px;}
.hamburger{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  background:rgba(120,215,225,.07);border:1px solid var(--line);border-radius:10px;color:var(--text);
}
.hamburger:hover{border-color:var(--line-2);color:var(--accent);}
.drawer{position:fixed;inset:0;z-index:120;visibility:hidden;pointer-events:none;}
.drawer.is-open{visibility:visible;pointer-events:auto;}
.drawer__mask{
  position:absolute;inset:0;background:rgba(3,7,10,.6);
  backdrop-filter:blur(8px);opacity:0;transition:opacity .26s var(--ease);
}
.drawer.is-open .drawer__mask{opacity:1;}
.drawer__panel{
  position:absolute;top:0;right:0;bottom:0;width:86%;max-width:340px;
  background:linear-gradient(180deg,rgba(11,21,29,.98),rgba(6,11,16,.99));
  border-left:1px solid var(--line);
  padding:22px 18px;display:flex;flex-direction:column;gap:18px;
  transform:translateX(100%);transition:transform .3s var(--ease);
  overflow-y:auto;
}
.drawer.is-open .drawer__panel{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;}
.drawer__close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:rgba(120,215,225,.06);color:var(--text);
}
.drawer__close:hover{color:var(--accent);border-color:var(--line-2);}

/* ---------- 主内容壳 ---------- */
.main-shell{position:relative;z-index:1;margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column;}
.page-deco{
  position:absolute;top:0;left:0;right:0;height:340px;overflow:hidden;pointer-events:none;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.16;
}
.page-deco::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,16,.4),var(--bg-0) 92%);
}
.scan{
  position:absolute;top:-40%;left:-30%;width:60%;height:180%;
  background:linear-gradient(100deg,transparent,rgba(43,217,194,.10),transparent);
  transform:rotate(45deg);
  animation:scanMove 11s linear infinite;
}
@keyframes scanMove{0%{transform:translateX(-40%) rotate(45deg);}100%{transform:translateX(320%) rotate(45deg);}}

/* ---------- 面包屑 ---------- */
.crumb-bar{position:relative;z-index:2;padding:30px 0 0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{color:var(--text-2);max-width:44ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-hero{position:relative;z-index:2;padding:26px 0 42px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:999px;font-size:12px;letter-spacing:.08em;
  color:var(--accent);background:rgba(43,217,194,.10);border:1px solid rgba(43,217,194,.28);
}
.article-hero h1{
  margin:18px 0 16px;
  font-size:clamp(28px,3.6vw,44px);
  font-weight:700;line-height:1.28;letter-spacing:-.01em;
  max-width:24ch;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;font-size:13px;color:var(--text-3);}
.meta-row .chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:6px;font-size:12.5px;
  color:var(--text-2);background:rgba(120,215,225,.07);border:1px solid var(--line);
}
.meta-row .chip i{color:var(--accent);}
.gate-bars{display:flex;gap:6px;margin-top:22px;}
.gate-bars span{height:3px;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:.75;}
.gate-bars span:nth-child(1){width:56px;}
.gate-bars span:nth-child(2){width:22px;opacity:.5;}
.gate-bars span:nth-child(3){width:10px;opacity:.32;}

/* ---------- 文章布局 ---------- */
.article-wrap{position:relative;z-index:2;padding-bottom:24px;}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:48px;align-items:start;}
.article-panel{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-2);
  backdrop-filter:blur(18px);
  padding:44px 48px 52px;
}
.article-body{max-width:760px;font-size:16px;line-height:1.9;color:var(--text-2);}
.article-body p{margin:0 0 1.25em;color:var(--text-2);}
.article-body strong{color:var(--text);}
.article-body h2{
  position:relative;
  margin:52px 0 18px;padding-left:18px;
  font-size:clamp(21px,2.2vw,26px);font-weight:700;color:var(--text);line-height:1.4;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.34em;width:4px;height:20px;border-radius:2px;
  background:linear-gradient(180deg,var(--accent),var(--primary));
  box-shadow:0 0 14px rgba(43,217,194,.55);
}
.article-body h3{margin:34px 0 12px;font-size:19px;font-weight:600;color:var(--text);}
.article-body h4{margin:26px 0 10px;font-size:17px;font-weight:600;color:var(--text);}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:4px;}
.article-body ul li,.article-body ol li{position:relative;padding-left:20px;margin:8px 0;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.82em;width:7px;height:2px;border-radius:2px;
  background:var(--accent);opacity:.85;
}
.article-body ol{counter-reset:li;}
.article-body ol li::before{
  counter-increment:li;content:counter(li);
  position:absolute;left:0;top:.18em;width:16px;height:16px;line-height:16px;text-align:center;
  font-size:11px;color:#04141A;background:var(--accent);border-radius:5px;font-weight:700;
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;
  background:rgba(16,34,46,.6);border:1px solid var(--line);
  border-left:3px solid var(--primary);border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--text-2);
}
.article-body img{border-radius:var(--r-img);margin:22px 0;box-shadow:var(--sh-1);}
.article-body figure{margin:24px 0;}
.article-body figcaption,.article-body .caption{font-size:13px;color:var(--text-3);margin-top:8px;text-align:center;}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;display:block;overflow-x:auto;font-size:14.5px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;color:var(--text-2);}
.article-body th{background:rgba(120,215,225,.07);color:var(--text);}
.article-body pre{
  background:rgba(4,10,14,.85);border:1px solid var(--line);border-radius:var(--r-img);
  padding:16px 18px;overflow-x:auto;font-size:14px;color:#C9E7F2;margin:22px 0;
}
.article-body a{color:var(--primary-2);border-bottom:1px solid rgba(91,139,255,.5);}
.article-body a:hover{color:var(--accent);border-bottom-color:transparent;}
.article-body hr{border:none;height:1px;margin:40px 0;background:linear-gradient(90deg,transparent,var(--line-2),transparent);}
.empty-state{
  text-align:center;padding:64px 24px;
  border:1px dashed var(--line-2);border-radius:var(--r-card);
  background:rgba(16,34,46,.4);
}
.empty-state i{font-size:30px;color:var(--text-3);margin-bottom:14px;display:block;}
.empty-state h2{font-size:20px;margin-bottom:10px;color:var(--text);}
.empty-state p{color:var(--text-3);margin-bottom:20px;}
.article-end{
  height:1px;margin:48px 0 0;
  background:linear-gradient(90deg,transparent,rgba(59,110,246,.5),rgba(43,217,194,.5),transparent);
}

/* ---------- 侧栏 ---------- */
.article-aside{display:flex;flex-direction:column;gap:20px;position:sticky;top:24px;}
.aside-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--sh-1);
  backdrop-filter:blur(14px);
}
.aside-card h3{
  font-size:14px;font-weight:600;color:var(--text);
  display:flex;align-items:center;gap:8px;margin-bottom:14px;
}
.aside-card h3 i{color:var(--accent);font-size:13px;}
.toc-list li{margin:0;}
.toc-list a{
  display:block;padding:7px 10px;border-radius:8px;font-size:13.5px;color:var(--text-2);
  border-left:2px solid transparent;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc-list a:hover{background:rgba(120,215,225,.07);color:var(--text);border-left-color:var(--accent);}
.aside-cta{background:linear-gradient(160deg,rgba(59,110,246,.22),rgba(43,217,194,.10));border-color:var(--line-2);}
.aside-cta p{font-size:13.5px;color:var(--text-2);margin-bottom:16px;line-height:1.75;}
.aside-cta .btn-glow{font-size:14px;padding:11px 14px;}
.aside-list li{margin:0;}
.aside-list a{display:flex;gap:8px;align-items:flex-start;padding:8px 0;font-size:13.5px;color:var(--text-2);border-bottom:1px dashed rgba(120,215,225,.10);}
.aside-list li:last-child a{border-bottom:none;}
.aside-list a:hover{color:var(--accent);}
.aside-list i{color:var(--text-3);font-size:11px;margin-top:7px;}

/* ---------- 相关推荐 ---------- */
.section{position:relative;z-index:2;padding:72px 0;}
.section-head{margin-bottom:32px;}
.section-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;}
.section-head p{color:var(--text-3);font-size:14.5px;margin:10px 0 0;}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--sh-2);}
.rel-card__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:rgba(14,28,38,.9);}
.rel-card__media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s var(--ease);}
.rel-card:hover .rel-card__media img{transform:scale(1.03);}
.rel-card__media::after{content:"";position:absolute;inset:0;background:rgba(6,11,16,.28);}
.rel-card__body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-card__tag{align-self:flex-start;font-size:12px;padding:3px 10px;border-radius:6px;color:var(--accent);background:rgba(43,217,194,.10);border:1px solid rgba(43,217,194,.25);}
.rel-card h3{font-size:17px;font-weight:600;line-height:1.5;}
.rel-card p{font-size:13.5px;color:var(--text-3);margin:0;flex:1;}
.rel-card__more{font-size:13px;color:var(--primary-2);display:inline-flex;align-items:center;gap:6px;}
.rel-card:hover .rel-card__more{color:var(--accent);}

/* ---------- 上/下一篇 ---------- */
.article-nav{display:flex;flex-wrap:wrap;gap:16px;align-items:stretch;}
.art-nav-link{
  flex:1 1 260px;display:flex;flex-direction:column;gap:6px;
  padding:18px 20px;border-radius:var(--r-card);
  background:rgba(16,34,46,.5);border:1px solid var(--line);
  transition:transform .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease);
}
.art-nav-link span{font-size:12px;color:var(--text-3);letter-spacing:.06em;}
.art-nav-link strong{font-size:15.5px;font-weight:600;color:var(--text);}
.art-nav-link:hover{transform:translateY(-3px);border-color:var(--line-2);background:var(--glass);}
.art-nav-link:hover strong{color:var(--accent);}
.art-nav-back{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:18px 26px;border-radius:var(--r-card);
  border:1px solid var(--line-2);color:var(--text-2);font-size:14.5px;
  background:rgba(120,215,225,.05);
}
.art-nav-back:hover{color:var(--accent);border-color:var(--accent);}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,rgba(59,110,246,.20),rgba(43,217,194,.10));
  border:1px solid var(--line-2);
  border-radius:var(--r-card);
  padding:44px 48px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";position:absolute;left:0;top:22px;width:64px;height:3px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  box-shadow:0 0 18px rgba(59,110,246,.6);
}
.cta-band h2{font-size:clamp(21px,2.3vw,28px);font-weight:700;margin-bottom:8px;}
.cta-band p{margin:0;color:var(--text-2);font-size:15px;max-width:56ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 20px;border-radius:var(--r-btn);
  border:1px solid var(--line-2);color:var(--text-2);font-size:15px;font-weight:500;
  background:rgba(120,215,225,.04);
  transition:all .24s var(--ease);
}
.btn-ghost:hover{color:var(--text);border-color:var(--accent);transform:translateY(-2px);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:auto;position:relative;z-index:2;
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:60px 0 26px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(59,110,246,.6),rgba(43,217,194,.6),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand__mark{width:34px;height:34px;border-radius:10px;}
.footer-brand .brand__mark::before{left:8px;right:8px;top:11px;height:2px;box-shadow:0 5px 0 rgba(43,217,194,.55),0 10px 0 rgba(43,217,194,.28);}
.footer-brand strong{font-size:15.5px;}
.site-footer p{color:var(--text-3);font-size:13.5px;line-height:1.85;margin:0;max-width:38ch;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px;}
.footer-col li{margin:9px 0;}
.footer-col a{font-size:13.5px;color:var(--text-3);display:inline-block;transition:all .24s var(--ease);}
.footer-col a:hover{color:var(--primary-2);transform:translateX(2px);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--nav-w:200px;}
  .article-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .article-aside{position:static;flex-direction:row;flex-wrap:wrap;}
  .article-aside .aside-card{flex:1 1 280px;}
  .container{padding:0 28px;}
}
@media (max-width:1023px){
  :root{--nav-w:72px;}
  .side-nav{padding:20px 12px;align-items:center;}
  .side-nav:hover{width:236px;align-items:stretch;box-shadow:var(--sh-2);}
  .brand__text,.nav-item__label,.nav-fine{opacity:0;pointer-events:none;transition:opacity .2s var(--ease);white-space:nowrap;}
  .side-nav:hover .brand__text,.side-nav:hover .nav-item__label,.side-nav:hover .nav-fine{opacity:1;pointer-events:auto;}
  .nav-item{justify-content:center;padding:13px 10px;}
  .side-nav:hover .nav-item{justify-content:flex-start;}
  .btn-glow .btn-label{display:none;}
  .side-nav:hover .btn-glow .btn-label{display:inline;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .article-panel{padding:34px 28px 40px;}
  .section{padding:56px 0;}
  .cta-band{padding:34px 28px;}
}
@media (max-width:767px){
  :root{--nav-w:0px;}
  .side-nav{display:none;}
  .topbar{display:flex;}
  .main-shell{margin-left:0;padding-top:56px;}
  .container{padding:0 18px;}
  .article-hero h1{max-width:none;}
  .crumb-bar{padding-top:22px;}
  .article-grid{grid-template-columns:minmax(0,1fr);}
  .article-panel{padding:26px 20px 32px;border-radius:16px;}
  .article-body h2{margin-top:38px;}
  .rel-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .section{padding:44px 0;}
  .cta-band{padding:28px 22px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{flex:1 1 100%;justify-content:center;}
  .article-aside{flex-direction:column;}
  .breadcrumb .current{max-width:26ch;}
}
@media (max-width:575px){
  body{font-size:15.5px;}
  .rel-grid{gap:16px;}
  .article-body{font-size:15.5px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .scan{display:none;}
}

/* roulang page: category1 */
:root{
  --bg-0:#060B10;
  --bg-1:#0A131B;
  --bg-2:#0E1C26;
  --glass:rgba(16,34,46,.55);
  --glass-strong:rgba(16,34,46,.82);
  --line:rgba(120,215,225,.12);
  --line-strong:rgba(120,215,225,.26);
  --primary:#3B6EF6;
  --primary-soft:rgba(59,110,246,.16);
  --accent:#2BD9C2;
  --amber:#FFB03A;
  --text:#E8F2F6;
  --text-2:#A7BBC7;
  --text-3:#6E8493;
  --danger:#FF6B6B;
  --r-card:18px;
  --r-btn:12px;
  --r-img:14px;
  --sh-1:0 2px 8px rgba(0,0,0,.28);
  --sh-2:0 14px 36px rgba(0,0,0,.38);
  --sh-glow:0 0 24px rgba(59,110,246,.45);
  --nav-w:236px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:260ms;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;background-color:transparent;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
strong{font-weight:700;}
:focus{outline:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:999;
  background:var(--primary);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;font-size:14px;
}
.skip-link:focus{left:0;}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 32px;}
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
}
/* ---------- 左侧竖向导航 ---------- */
.layout{display:block;min-height:100vh;}
.side-nav{
  display:none;
  position:fixed;left:0;top:0;bottom:0;width:var(--nav-w);
  flex-direction:column;
  background:linear-gradient(180deg,rgba(10,19,27,.96),rgba(6,11,16,.98));
  border-right:1px solid var(--line);
  padding:26px 16px 20px;
  z-index:60;
}
.side-nav__brand{display:flex;align-items:center;gap:10px;padding:0 8px 0 10px;}
.brand__mark{
  position:relative;flex:0 0 auto;width:30px;height:30px;border-radius:9px;
  background:linear-gradient(140deg,var(--primary),#1b3ea8);
  box-shadow:var(--sh-glow);
}
.brand__mark::before{
  content:"";position:absolute;left:8px;right:8px;top:13px;height:2px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 10px rgba(43,217,194,.9);
}
.brand__mark::after{
  content:"";position:absolute;left:13px;top:7px;width:4px;height:4px;border-radius:50%;
  background:#fff;opacity:.9;
}
.brand__text{font-size:15px;font-weight:700;letter-spacing:.4px;line-height:1.35;}
.side-nav__divider{
  height:1px;margin:20px 8px 16px;
  background:linear-gradient(90deg,transparent,rgba(120,215,225,.3),transparent);
}
.side-nav__menu{display:flex;flex-direction:column;gap:6px;}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:11px;
  color:var(--text-2);font-size:15px;font-weight:500;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.nav-item i{font-size:15px;width:18px;text-align:center;color:var(--text-3);transition:color var(--dur) var(--ease);}
.nav-item:hover{background:rgba(120,215,225,.07);color:var(--text);}
.nav-item:hover i{color:var(--accent);}
.nav-item.is-active{
  background:var(--glass-strong);color:var(--text);
  border:1px solid var(--line);
}
.nav-item.is-active i{color:var(--primary);}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:0 3px 3px 0;
  background:var(--primary);box-shadow:0 0 14px rgba(59,110,246,.95);
}
.side-nav__foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding:0 4px;}
.side-nav__privacy{font-size:12px;color:var(--text-3);text-align:center;letter-spacing:.2px;}
.side-nav__privacy:hover{color:var(--accent);}
/* ---------- 顶部移动导航 ---------- */
.topbar{
  position:fixed;top:0;left:0;right:0;height:56px;z-index:80;
  display:flex;align-items:center;
  background:rgba(8,15,21,.78);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.topbar__inner{
  width:100%;max-width:1160px;margin:0 auto;padding:0 18px;
  display:flex;align-items:center;justify-content:space-between;
}
.topbar__brand{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:700;}
.topbar__brand .brand__mark{width:26px;height:26px;border-radius:8px;}
.topbar__brand .brand__mark::before{left:7px;right:7px;top:11px;}
.topbar__brand .brand__mark::after{left:11px;top:6px;}
.topbar__burger{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:11px;color:var(--text);
  cursor:pointer;transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.topbar__burger:hover{background:rgba(120,215,225,.08);border-color:var(--line-strong);}
/* ---------- 页面主体 ---------- */
.page{min-height:100vh;background:var(--bg-1);padding-top:56px;}
.page__main{display:block;}
.section{padding:56px 0;position:relative;}
.section--tight{padding:40px 0;}
.section--alt{background:var(--bg-0);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--deep{background:var(--bg-0);}
.section__head{max-width:720px;margin-bottom:32px;}
.eyebrow{display:flex;align-items:center;gap:6px;margin-bottom:14px;height:3px;}
.eyebrow i{display:block;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--accent),rgba(43,217,194,0));}
.eyebrow i:nth-child(1){width:44px;}
.eyebrow i:nth-child(2){width:22px;opacity:.6;}
.eyebrow i:nth-child(3){width:12px;opacity:.35;}
.section__title{font-size:clamp(22px,2.4vw,32px);font-weight:700;line-height:1.45;letter-spacing:-.01em;}
.section__title::before{
  content:"";display:inline-block;width:4px;height:18px;border-radius:2px;margin-right:12px;
  background:var(--primary);box-shadow:0 0 14px rgba(59,110,246,.9);vertical-align:-2px;
}
.section__desc{color:var(--text-2);margin-top:12px;font-size:15px;line-height:1.85;}
/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:64px 0 56px;
  background-image:linear-gradient(180deg,rgba(6,11,16,.9),rgba(6,11,16,.95)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero__grid{
  position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(120,215,225,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(120,215,225,.05) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:radial-gradient(120% 90% at 15% 0%,#000 20%,transparent 78%);
  mask-image:radial-gradient(120% 90% at 15% 0%,#000 20%,transparent 78%);
}
.hero__scan{
  position:absolute;inset:-40% -12%;pointer-events:none;
  background:linear-gradient(45deg,transparent 45%,rgba(43,217,194,.09) 50%,transparent 55%);
  animation:scanMove 11s linear infinite;
}
@keyframes scanMove{
  0%{transform:translate3d(-26%,-18%,0);}
  100%{transform:translate3d(26%,18%,0);}
}
.hero__inner{
  position:relative;z-index:2;
  display:grid;gap:36px;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);align-items:center;
}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--primary-soft);border:1px solid rgba(59,110,246,.32);
  color:#BFD2FF;font-size:13px;letter-spacing:.3px;
}
.badge i{font-size:12px;color:var(--accent);}
.hero__title{
  font-size:clamp(28px,3.6vw,46px);font-weight:700;line-height:1.28;letter-spacing:-.01em;
  margin-top:20px;
}
.hero__title span{color:var(--accent);}
.hero__sub{color:var(--text-2);font-size:16px;margin-top:16px;max-width:520px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.trust-list{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.trust-item{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 14px;border-radius:10px;
  background:rgba(14,28,38,.6);border:1px solid var(--line);
  color:var(--text-2);font-size:13.5px;
}
.trust-item i{color:var(--accent);font-size:13px;}
.hero__card{position:relative;border-radius:var(--r-card);padding:14px;box-shadow:var(--sh-2);}
.hero__media{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  background:linear-gradient(135deg,var(--bg-2),var(--bg-1));
  aspect-ratio:16/10;
}
.hero__media::before{
  content:"\f03e";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  color:var(--text-3);font-size:26px;opacity:.5;
}
.hero__media img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover;}
.hero__float{
  position:absolute;left:-14px;bottom:22px;z-index:3;
  display:flex;align-items:center;gap:10px;padding:11px 16px;border-radius:13px;
  box-shadow:var(--sh-2);
}
.hero__float .dot{
  width:9px;height:9px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 12px rgba(43,217,194,.95);flex:0 0 auto;
}
.hero__float strong{display:block;font-size:13.5px;line-height:1.5;}
.hero__float span{display:block;font-size:12px;color:var(--text-3);line-height:1.5;}
/* ---------- 面包屑 ---------- */
.crumb{padding:18px 0 0;}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:rgba(110,132,147,.6);}
.crumb a:hover{color:var(--accent);}
.crumb [aria-current]{color:var(--text-2);}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn--primary{
  background:linear-gradient(120deg,#3B6EF6,#2f57c9);color:#fff;
  box-shadow:0 6px 20px rgba(59,110,246,.34);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(59,110,246,.55);}
.btn--primary:active{transform:translateY(0);box-shadow:0 4px 14px rgba(59,110,246,.4);}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--text);}
.btn--ghost:hover{background:rgba(120,215,225,.09);border-color:var(--accent);color:#fff;transform:translateY(-2px);}
.btn--ghost:active{transform:translateY(0);}
.btn--sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn--block{width:100%;}
.btn[disabled],.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:8px;padding-left:34px;}
.timeline::before{
  content:"";position:absolute;left:9px;top:6px;bottom:6px;width:1px;
  background:linear-gradient(180deg,rgba(59,110,246,.7),rgba(43,217,194,.35),rgba(120,215,225,.08));
}
.tl-item{position:relative;padding:0 0 26px 0;}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  position:absolute;left:-34px;top:6px;width:19px;height:19px;border-radius:50%;
  background:var(--bg-1);border:1px solid rgba(59,110,246,.6);
  display:flex;align-items:center;justify-content:center;
  font-size:10px;font-weight:700;color:#C6D6FF;
  box-shadow:0 0 0 4px rgba(59,110,246,.09);
}
.tl-item:hover .tl-node{border-color:var(--accent);color:#fff;box-shadow:0 0 14px rgba(43,217,194,.6);}
.tl-card{
  border-radius:16px;padding:18px 20px;
  background:var(--glass);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.tl-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--sh-2);}
.tl-title{font-size:18px;font-weight:600;display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.tl-title .tag{
  font-size:12px;font-weight:500;color:#8FE7DA;background:rgba(43,217,194,.1);
  border:1px solid rgba(43,217,194,.26);border-radius:6px;padding:2px 8px;line-height:1.7;
}
.tl-text{color:var(--text-2);font-size:15px;margin-top:8px;}
/* ---------- 图文区 ---------- */
.split{display:grid;gap:32px;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);align-items:center;}
.media{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  background:linear-gradient(135deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);aspect-ratio:3/2;
}
.media::before{
  content:"\f03e";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  color:var(--text-3);font-size:26px;opacity:.5;
}
.media img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease);}
.media:hover img{transform:scale(1.03);}
.point-list{display:flex;flex-direction:column;gap:12px;margin-top:18px;}
.point-list li{position:relative;padding-left:20px;color:var(--text-2);font-size:15px;}
.point-list li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:2px;border-radius:2px;background:var(--accent);
}
/* ---------- 指标条 ---------- */
.metrics{margin:0 -10px;}
.metrics>.cell{padding:0 10px;margin-bottom:20px;}
.metric{
  height:100%;border-radius:16px;padding:22px 20px;
  background:linear-gradient(160deg,rgba(14,28,38,.9),rgba(10,19,27,.72));
  border:1px solid var(--line);
  transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.metric:hover{border-color:var(--line-strong);transform:translateY(-3px);}
.metric__num{font-size:34px;font-weight:700;color:var(--accent);line-height:1.2;letter-spacing:-.02em;}
.metric__unit{font-size:13px;color:var(--text-3);margin-left:6px;}
.metric__label{font-size:14px;color:var(--text-2);margin-top:8px;}
/* ---------- 对照卡 ---------- */
.compare{display:grid;gap:16px;grid-template-columns:repeat(2,minmax(0,1fr));}
.cmp-card{
  border-radius:16px;padding:18px 20px;
  background:var(--glass);border:1px solid var(--line);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.cmp-card:hover{transform:translateY(-3px);border-color:var(--line-strong);}
.cmp-card h3{font-size:16px;font-weight:600;display:flex;align-items:flex-start;gap:10px;}
.cmp-card h3 i{color:var(--amber);font-size:14px;margin-top:6px;flex:0 0 auto;}
.cmp-card p{color:var(--text-2);font-size:14.5px;margin-top:6px;padding-left:24px;}
.cmp-card .fix{color:#9BE9DE;font-size:14.5px;margin-top:10px;padding-left:24px;display:block;}
/* ---------- 清单 ---------- */
.check-grid{display:grid;gap:14px;grid-template-columns:repeat(2,minmax(0,1fr));}
.check-item{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 18px;border-radius:14px;
  background:rgba(14,28,38,.55);border:1px solid var(--line);
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.check-item:hover{background:rgba(16,34,46,.8);border-color:var(--line-strong);}
.check-item i{color:var(--accent);font-size:15px;margin-top:5px;flex:0 0 auto;}
.check-item strong{display:block;font-size:15.5px;font-weight:600;}
.check-item span{display:block;color:var(--text-2);font-size:14px;margin-top:4px;}
/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;max-width:860px;}
.faq-item{
  border-radius:14px;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item.is-open{border-color:rgba(59,110,246,.5);background:rgba(16,34,46,.78);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--text);line-height:1.7;
  transition:color var(--dur) var(--ease);
}
.faq-q:hover{color:#fff;}
.faq-q i{color:var(--text-3);font-size:14px;transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);flex:0 0 auto;}
.faq-item.is-open .faq-q i{transform:rotate(90deg);color:var(--primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms var(--ease);}
.faq-a p{
  padding:0 20px 18px 20px;color:var(--text-2);font-size:15px;line-height:1.85;
  border-left:3px solid var(--primary);margin-left:20px;padding-left:16px;
}
/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:22px;
  padding:36px 34px;display:grid;gap:24px;grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);align-items:center;
  background:linear-gradient(120deg,rgba(59,110,246,.16),rgba(43,217,194,.08)),var(--glass-strong);
  border:1px solid var(--line-strong);
  box-shadow:var(--sh-2);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,217,194,.22),transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(20px,2.2vw,27px);font-weight:700;line-height:1.5;}
.cta-band p{color:var(--text-2);font-size:15px;margin-top:10px;}
.cta-band .actions{display:flex;flex-direction:column;gap:12px;position:relative;z-index:2;}
.link-plain{
  color:var(--text-2);font-size:14px;text-align:center;
  border-bottom:1px dashed rgba(167,187,199,.4);align-self:center;padding-bottom:2px;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.link-plain:hover{color:var(--accent);border-color:var(--accent);}
/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:120;visibility:hidden;pointer-events:none;}
.drawer__mask{
  position:absolute;inset:0;background:rgba(3,7,10,.68);
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
  opacity:0;transition:opacity var(--dur) var(--ease);
}
.drawer__panel{
  position:absolute;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:linear-gradient(180deg,rgba(10,19,27,.99),rgba(6,11,16,.99));
  border-left:1px solid var(--line);
  padding:18px 16px;display:flex;flex-direction:column;gap:14px;
  transform:translateX(100%);transition:transform 280ms var(--ease);
  overflow-y:auto;
}
.drawer.is-open{visibility:visible;pointer-events:auto;}
.drawer.is-open .drawer__mask{opacity:1;}
.drawer.is-open .drawer__panel{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer__head .brand-wrap{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:700;}
.drawer__close{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:11px;cursor:pointer;color:var(--text);
}
.drawer__close:hover{background:rgba(120,215,225,.08);}
.drawer__menu{display:flex;flex-direction:column;gap:6px;margin-top:6px;}
.drawer__foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;}
.drawer__foot small{color:var(--text-3);font-size:12px;text-align:center;}
body.no-scroll{overflow:hidden;}
/* ---------- 模态表单 ---------- */
.modal{position:fixed;inset:0;z-index:140;visibility:hidden;pointer-events:none;}
.modal__mask{
  position:absolute;inset:0;background:rgba(3,7,10,.66);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  opacity:0;transition:opacity var(--dur) var(--ease);
}
.modal__dialog{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-46%) scale(.97);
  width:min(560px,calc(100vw - 32px));max-height:calc(100vh - 48px);overflow-y:auto;
  border-radius:20px;padding:26px 24px;box-shadow:var(--sh-2);
  background:var(--glass-strong);
  opacity:0;transition:opacity 240ms var(--ease),transform 240ms var(--ease);
}
.modal.is-open{visibility:visible;pointer-events:auto;}
.modal.is-open .modal__mask{opacity:1;}
.modal.is-open .modal__dialog{opacity:1;transform:translate(-50%,-50%) scale(1);}
.modal__close{
  position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:10px;
  background:transparent;border:1px solid var(--line);cursor:pointer;color:var(--text);
  display:inline-flex;align-items:center;justify-content:center;
}
.modal__close:hover{background:rgba(120,215,225,.08);border-color:var(--line-strong);}
.modal__dialog h3{font-size:20px;font-weight:700;padding-right:44px;}
.modal__hint{color:var(--text-2);font-size:14px;margin-top:8px;}
.modal__form{margin-top:20px;display:flex;flex-direction:column;gap:14px;}
.field{display:flex;flex-direction:column;gap:6px;}
.field__label{font-size:13.5px;color:var(--text-2);}
.field__input{
  width:100%;min-height:46px;padding:11px 14px;border-radius:11px;
  background:rgba(6,11,16,.8);border:1px solid var(--line);color:var(--text);
  font-size:15px;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
textarea.field__input{min-height:96px;resize:vertical;line-height:1.8;}
select.field__input{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 15px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field__input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(59,110,246,.22);outline:none;}
.field__input::placeholder{color:var(--text-3);}
.field__error{display:none;color:var(--danger);font-size:13px;}
.field.has-error .field__input{border-color:var(--danger);}
.field.has-error .field__error{display:block;}
.field__check{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--text-2);cursor:pointer;line-height:1.7;}
.field__check input{margin-top:5px;width:16px;height:16px;accent-color:#3B6EF6;flex:0 0 auto;}
.modal__privacy{font-size:12.5px;color:var(--text-3);line-height:1.8;padding-top:12px;border-top:1px solid var(--line);}
.modal__privacy a{color:var(--accent);border-bottom:1px solid rgba(43,217,194,.4);}
.form-note{
  display:none;padding:11px 14px;border-radius:11px;font-size:14px;
  background:rgba(43,217,194,.1);border:1px solid rgba(43,217,194,.34);color:#9BE9DE;
}
.form-note.is-show{display:block;}
/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-0);border-top:1px solid var(--line);
  padding:52px 0 26px;position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(59,110,246,.6),rgba(43,217,194,.5),transparent);
}
.footer-grid{display:grid;gap:32px;grid-template-columns:1.5fr 1fr 1fr 1fr;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{font-size:17px;}
.footer-grid p{color:var(--text-2);font-size:14px;line-height:1.85;max-width:340px;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:14px;color:var(--text);}
.footer-col li+li{margin-top:9px;}
.footer-col a{
  color:var(--text-2);font-size:14px;display:inline-block;
  transition:color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.footer-col a:hover{color:var(--primary);transform:translateX(2px);}
.footer-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  color:var(--text-3);font-size:12.5px;
}
/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 28px;}
}
@media (max-width:1023px){
  .hero__inner,.split,.compare,.check-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:30px 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .section{padding:48px 0;}
  .hero{padding:48px 0 44px;}
}
@media (min-width:768px){
  .topbar{display:none;}
  .page{padding-top:0;}
  .side-nav{display:flex;width:72px;padding:22px 10px 18px;}
  .page{margin-left:72px;}
  .side-nav__brand{justify-content:center;padding:0 0 0 0;}
  .brand__text{display:none;}
  .side-nav__brand .brand__short{display:block;font-size:12px;font-weight:700;letter-spacing:.5px;}
  .side-nav__divider{margin:18px 2px 14px;}
  .nav-item{justify-content:center;padding:12px 0;}
  .nav-item__label{
    position:absolute;left:calc(100% + 12px);top:50%;
    transform:translateY(-50%) translateX(-6px);
    padding:6px 12px;border-radius:9px;white-space:nowrap;
    background:var(--bg-2);border:1px solid var(--line-strong);color:var(--text);
    font-size:13px;box-shadow:var(--sh-1);
    opacity:0;pointer-events:none;
    transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease);
  }
  .nav-item:hover .nav-item__label,.nav-item:focus-visible .nav-item__label{opacity:1;transform:translateY(-50%) translateX(0);}
  .side-nav__foot .btn{padding:0;font-size:0;min-height:44px;}
  .side-nav__foot .btn::before{content:"\f0e0";font-family:"Font Awesome 6 Free";font-weight:900;font-size:15px;}
  .side-nav__privacy{font-size:0;}
  .side-nav__privacy::before{content:"\f023";font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;color:var(--text-3);}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;}
}
@media (min-width:1024px){
  .side-nav{width:200px;padding:26px 14px 20px;}
  .page{margin-left:200px;}
  .side-nav__brand{justify-content:flex-start;padding:0 8px 0 10px;}
  .brand__text{display:block;}
  .side-nav__brand .brand__short{display:none;}
  .nav-item{justify-content:flex-start;padding:11px 12px;}
  .nav-item__label{
    position:static;opacity:1;transform:none;background:transparent;border:0;
    padding:0;box-shadow:none;font-size:15px;color:inherit;
    pointer-events:auto;white-space:normal;
  }
  .side-nav__foot .btn{padding:0 18px;font-size:14px;}
  .side-nav__foot .btn::before{content:none;}
  .side-nav__privacy{font-size:12px;}
  .side-nav__privacy::before{content:none;}
}
@media (min-width:1280px){
  .side-nav{width:236px;padding:26px 16px 20px;}
  .page{margin-left:236px;}
  .section{padding:72px 0;}
  .section--tight{padding:48px 0;}
  .hero{padding:76px 0 64px;}
}
@media (max-width:575px){
  .container{padding:0 18px;}
  .hero__title{font-size:27px;}
  .hero__float{left:10px;bottom:12px;}
  .hero__actions .btn{width:100%;}
  .metrics>.cell{width:50%;}
  .compare,.check-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .section{padding:44px 0;}
  .cta-band{padding:26px 20px;border-radius:18px;}
  .tl-card{padding:16px;}
  .modal__dialog{padding:22px 18px;max-height:calc(100vh - 32px);width:calc(100vw - 32px);}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .hero__scan{opacity:.25;}
}

/* roulang page: category2 */
:root{
  --bg-0:#060B10;
  --bg-1:#0A131B;
  --bg-2:#0E1C26;
  --glass:rgba(16,34,46,.55);
  --glass-strong:rgba(16,34,46,.78);
  --line:rgba(120,215,225,.12);
  --line-strong:rgba(120,215,225,.24);
  --primary:#3B6EF6;
  --primary-soft:rgba(59,110,246,.16);
  --accent:#2BD9C2;
  --accent-soft:rgba(43,217,194,.14);
  --amber:#FFB03A;
  --text:#E8F2F6;
  --text-2:#A7BBC7;
  --text-3:#6E8493;
  --danger:#FF6B6B;
  --radius-card:18px;
  --radius-btn:12px;
  --radius-img:14px;
  --shadow-low:0 2px 8px rgba(0,0,0,.28);
  --shadow-mid:0 14px 36px rgba(0,0,0,.38);
  --shadow-glow:0 0 24px rgba(59,110,246,.45);
  --nav-w:236px;
  --ease:260ms cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-left:var(--nav-w);
  min-height:100vh;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:0;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(120,215,225,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,215,225,.04) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
  z-index:0;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,h5{color:var(--text);font-weight:700;margin:0;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--primary);color:#fff;padding:10px 18px;border-radius:0 0 8px 0;
}
.skip-link:focus{left:0}

.container{width:100%;max-width:1160px;margin:0 auto;padding:0 32px;position:relative;z-index:1}

/* ---------- 侧边导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;width:var(--nav-w);height:100vh;
  display:flex;flex-direction:column;
  padding:26px 16px 18px;
  background:linear-gradient(180deg,rgba(10,19,27,.96),rgba(6,11,16,.96));
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-right:1px solid var(--line);
  z-index:80;
  transition:width var(--ease),box-shadow var(--ease);
}
.side-nav__brand{display:flex;align-items:center;gap:12px;padding:0 8px 0 4px;min-height:44px}
.brand__mark{
  flex:0 0 auto;position:relative;width:30px;height:30px;border-radius:9px;
  background:linear-gradient(135deg,var(--primary),#1b3fae);
  box-shadow:var(--shadow-glow);
}
.brand__mark::before{
  content:"";position:absolute;left:6px;right:6px;top:11px;height:2px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 8px rgba(43,217,194,.9);
}
.brand__mark::after{
  content:"";position:absolute;left:50%;top:50%;width:5px;height:5px;margin:-8px 0 0 -2.5px;border-radius:50%;
  background:var(--amber);box-shadow:0 0 8px rgba(255,176,58,.9);
}
.brand__text{display:flex;flex-direction:column;line-height:1.25;white-space:nowrap}
.brand__text strong{font-size:15px;font-weight:700;letter-spacing:.01em}
.brand__text small{font-size:11px;color:var(--text-3);letter-spacing:.04em}
.side-nav__divider{
  height:1px;margin:20px 4px 18px;
  background:linear-gradient(90deg,rgba(59,110,246,.55),rgba(43,217,194,.25),transparent);
}
.side-nav__menu{display:flex;flex-direction:column;gap:6px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:12px;border:1px solid transparent;
  color:var(--text-2);font-size:15px;font-weight:500;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.nav-item i{width:20px;text-align:center;font-size:15px;flex:0 0 20px}
.nav-item__label{white-space:nowrap}
.nav-item:hover{background:rgba(120,215,225,.06);color:var(--accent)}
.nav-item.is-active{
  background:var(--glass);border-color:var(--line-strong);color:var(--text);
  box-shadow:var(--shadow-low);
}
.nav-item.is-active i{color:var(--accent)}
.nav-item.is-active::before{
  content:"";position:absolute;left:-16px;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 14px rgba(59,110,246,.85);
}
.side-nav__foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding:0 4px}
.privacy-link{font-size:12px;color:var(--text-3);transition:color var(--ease)}
.privacy-link:hover{color:var(--accent)}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:95;
  align-items:center;justify-content:space-between;padding:0 16px;
  background:rgba(8,16,23,.82);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.topbar__brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:700;white-space:nowrap}
.topbar__brand .brand__mark{width:26px;height:26px;border-radius:8px}
.topbar__toggle{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);border-radius:12px;color:var(--text);font-size:17px;
  cursor:pointer;transition:background var(--ease),color var(--ease);
}
.topbar__toggle:hover{background:var(--primary-soft);color:var(--accent)}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;top:0;right:0;width:min(330px,86vw);height:100%;z-index:120;
  display:flex;flex-direction:column;gap:8px;padding:22px 18px;
  background:linear-gradient(180deg,rgba(10,19,27,.99),rgba(6,11,16,.99));
  border-left:1px solid var(--line-strong);
  transform:translateX(104%);
  transition:transform 300ms cubic-bezier(.2,.7,.3,1);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer__head strong{font-size:15px}
.drawer__close{
  width:40px;height:40px;display:flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);border-radius:10px;color:var(--text);cursor:pointer;
}
.drawer .nav-item{padding:13px 12px;font-size:15px}
.drawer__foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px}
.overlay{
  position:fixed;inset:0;z-index:110;background:rgba(3,8,12,.62);
  backdrop-filter:blur(4px);opacity:0;pointer-events:none;transition:opacity var(--ease);
}
.overlay.is-open{opacity:1;pointer-events:auto}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn--glow{
  background:linear-gradient(135deg,var(--primary),#2750c9);
  color:#fff;box-shadow:0 8px 24px rgba(59,110,246,.36);
}
.btn--glow:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(59,110,246,.5)}
.btn--glow:active{transform:translateY(0);box-shadow:0 6px 16px rgba(59,110,246,.4)}
.btn--ghost{
  background:rgba(16,34,46,.5);border-color:var(--line-strong);color:var(--text);
}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none}

.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--accent-soft);border:1px solid rgba(43,217,194,.3);
  color:var(--accent);font-size:13px;font-weight:600;letter-spacing:.02em;
}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:6px;font-size:12px;font-weight:600;
  background:var(--primary-soft);border:1px solid rgba(59,110,246,.32);color:#9DB8FF;
}
.glass-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-card);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow-mid);
}
.text-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--accent);
  transition:gap var(--ease),color var(--ease);
}
.text-link:hover{gap:12px;color:#6ef0dd}
.text-link i{font-size:12px}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:76px 0 60px;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(90deg,rgba(6,11,16,.9),rgba(6,11,16,.74) 55%,rgba(6,11,16,.9)),
    url(/assets/images/backpic/back-2.png) center/cover no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(120,215,225,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,215,225,.05) 1px,transparent 1px);
  background-size:24px 24px;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-160px;width:540px;height:540px;
  background:radial-gradient(circle,rgba(43,217,194,.2),transparent 62%);pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb a{color:var(--text-3);transition:color var(--ease)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span[aria-current]{color:var(--text-2)}
.page-hero h1{
  font-size:clamp(30px,4.4vw,54px);line-height:1.25;margin:18px 0 14px;letter-spacing:-.01em;
}
.page-hero__sub{
  max-width:640px;font-size:17px;color:var(--text-2);line-height:1.85;
}
.page-hero__meta{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;
}
.mini-chip{
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 16px;border-radius:12px;
  background:rgba(16,34,46,.55);border:1px solid var(--line);
  font-size:13px;color:var(--text-2);
}
.mini-chip i{color:var(--accent);font-size:13px}

/* ---------- 主体区 ---------- */
.section{padding:72px 0}
.section--tight{padding:56px 0}
.section-head{max-width:700px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.35;margin-bottom:14px}
.section-head p{color:var(--text-2);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:600;
  color:var(--accent);letter-spacing:.08em;margin-bottom:14px;
}
.eyebrow::before{
  content:"";width:22px;height:2px;border-radius:2px;background:var(--accent);
  box-shadow:0 0 10px rgba(43,217,194,.8);
}

.content-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;
}
.page-aside{position:sticky;top:32px;display:flex;flex-direction:column;gap:20px}
.aside-card{padding:24px 22px}
.aside-card h3{font-size:17px;margin-bottom:16px}
.aside-card h4{font-size:16px;margin-bottom:10px}
.aside-card p{font-size:14px;color:var(--text-2);line-height:1.8}
.aside-card--cta{background:linear-gradient(160deg,rgba(59,110,246,.16),rgba(16,34,46,.7))}
.check-list{display:flex;flex-direction:column;gap:12px}
.check-list li{
  display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7;
}
.check-list li i{color:var(--accent);font-size:13px;margin-top:7px}
.aside-card hr{
  border:0;height:1px;margin:18px 0;
  background:linear-gradient(90deg,rgba(59,110,246,.5),transparent);
}

/* 交替图文 */
.feature-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:44px;align-items:center;
  padding:36px 0;
  border-bottom:1px dashed rgba(120,215,225,.12);
}
.feature-row:last-child{border-bottom:0}
.feature-row--reverse .feature-row__media{order:2}
.feature-row__media{
  position:relative;border-radius:var(--radius-img);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-mid);
  aspect-ratio:16/10;background:var(--bg-2);
}
.feature-row__media img{
  width:100%;height:100%;object-fit:cover;
  filter:brightness(.82) saturate(1.02);
  transition:transform 420ms cubic-bezier(.2,.7,.3,1);
}
.feature-row:hover .feature-row__media img{transform:scale(1.03)}
.feature-row__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,16,.05),rgba(6,11,16,.42));
}
.feature-row__body h3{font-size:clamp(20px,2.2vw,22px);margin:14px 0 12px}
.feature-row__body > p{color:var(--text-2);font-size:15.5px;margin-bottom:18px}
.dot-list{display:flex;flex-direction:column;gap:11px;margin-bottom:20px}
.dot-list li{
  position:relative;padding-left:20px;font-size:15px;color:var(--text-2);line-height:1.8;
}
.dot-list li::before{
  content:"";position:absolute;left:2px;top:12px;width:6px;height:6px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 8px rgba(43,217,194,.7);
}
.dot-list strong{color:var(--text);font-weight:600}

/* 数据条 */
.stats-band{
  background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
}
.stat{padding:38px 26px;border-right:1px solid rgba(120,215,225,.1)}
.stat:last-child{border-right:0}
.stat__num{
  font-size:clamp(28px,3.2vw,40px);font-weight:700;line-height:1;color:var(--accent);
  letter-spacing:-.02em;
}
.stat__num small{font-size:14px;font-weight:600;color:var(--text-2);margin-left:6px}
.stat__label{margin-top:12px;font-size:14px;color:var(--text-2);line-height:1.7}

/* 两列对照 */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.compare-col{padding:28px 26px}
.compare-col h3{
  display:flex;align-items:center;gap:10px;font-size:17px;margin-bottom:18px;
}
.compare-col h3 i{font-size:15px}
.compare-col--risk h3 i{color:var(--amber)}
.compare-col--action h3 i{color:var(--accent)}
.compare-col ul{display:flex;flex-direction:column;gap:14px}
.compare-col li{
  display:flex;gap:12px;font-size:15px;color:var(--text-2);line-height:1.8;
  padding-bottom:14px;border-bottom:1px solid rgba(120,215,225,.08);
}
.compare-col li:last-child{border-bottom:0;padding-bottom:0}
.compare-col li span:first-child{
  flex:0 0 auto;font-size:12px;font-weight:700;color:var(--text-3);padding-top:5px;
  font-variant-numeric:tabular-nums;
}
.compare-col--risk{background:linear-gradient(160deg,rgba(255,176,58,.09),rgba(16,34,46,.6))}
.compare-col--action{background:linear-gradient(160deg,rgba(43,217,194,.1),rgba(16,34,46,.6))}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:280px minmax(0,1fr);gap:48px;align-items:start}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  border:1px solid var(--line);border-radius:14px;background:var(--glass);
  overflow:hidden;transition:border-color var(--ease),background var(--ease);
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.is-open{border-color:rgba(59,110,246,.45);background:var(--glass-strong)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:0;cursor:pointer;
  color:var(--text);font-size:17px;font-weight:600;text-align:left;line-height:1.6;
}
.faq-q i{color:var(--text-3);font-size:14px;transition:transform var(--ease),color var(--ease)}
.faq-item.is-open .faq-q i{transform:rotate(90deg);color:var(--accent)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height 320ms cubic-bezier(.2,.7,.3,1);
}
.faq-a__inner{
  padding:0 22px 20px 22px;font-size:15px;color:var(--text-2);line-height:1.85;
  border-left:3px solid transparent;
}
.faq-item.is-open .faq-a__inner{border-left-color:var(--primary)}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;border-radius:22px;
  padding:52px 44px;
  background:
    linear-gradient(120deg,rgba(59,110,246,.22),rgba(6,11,16,.86) 62%),
    url(/assets/images/backpic/back-3.png) center/cover no-repeat;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-mid);
  display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
}
.cta-band__text{max-width:600px}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;line-height:1.4}
.cta-band p{color:var(--text-2);font-size:15.5px}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px}

/* 弹层表单 */
.modal{
  position:fixed;inset:0;z-index:150;display:flex;align-items:center;justify-content:center;
  padding:24px;opacity:0;pointer-events:none;transition:opacity var(--ease);
}
.modal.is-open{opacity:1;pointer-events:auto}
.modal__overlay{
  position:absolute;inset:0;background:rgba(3,8,12,.66);backdrop-filter:blur(8px);
}
.modal__panel{
  position:relative;width:min(560px,100%);max-height:88vh;overflow-y:auto;
  padding:32px 30px 26px;border-radius:20px;
  background:linear-gradient(165deg,rgba(14,28,38,.96),rgba(8,16,23,.98));
  border:1px solid var(--line-strong);box-shadow:var(--shadow-mid);
  transform:scale(.96);transition:transform 240ms cubic-bezier(.2,.7,.3,1);
}
.modal.is-open .modal__panel{transform:scale(1)}
.modal__close{
  position:absolute;top:16px;right:16px;width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);border-radius:10px;color:var(--text-2);cursor:pointer;
  transition:color var(--ease),border-color var(--ease);
}
.modal__close:hover{color:var(--accent);border-color:var(--accent)}
.modal__panel h3{font-size:21px;margin-bottom:10px}
.modal__panel > p{font-size:14px;color:var(--text-2);margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--text-2);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:10px;
  background:rgba(6,11,16,.72);border:1px solid var(--line-strong);
  color:var(--text);font-size:15px;font-family:inherit;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(59,110,246,.25);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--danger)}
.field__error{display:none;font-size:12.5px;color:var(--danger);margin-top:6px}
.field.has-error .field__error{display:block}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--text-2);line-height:1.7}
.check-row input{width:16px;height:16px;margin-top:5px;flex:0 0 16px;accent-color:var(--primary)}
.check-row a{color:var(--accent);text-decoration:underline}
.modal__foot{
  margin-top:20px;padding-top:16px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);line-height:1.7;
}
.form-note{
  display:none;margin-top:14px;padding:12px 14px;border-radius:10px;
  background:var(--accent-soft);border:1px solid rgba(43,217,194,.32);
  font-size:13.5px;color:var(--accent);
}
.form-note.is-visible{display:block}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:24px;
  background:var(--bg-0);
  border-top:1px solid var(--line);
  position:relative;z-index:1;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(59,110,246,.7),rgba(43,217,194,.45),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding:58px 0 40px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand strong{font-size:16px}
.footer-grid p{font-size:13.5px;color:var(--text-3);line-height:1.85;max-width:320px}
.footer-col h4{font-size:14px;margin-bottom:16px;color:var(--text);letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{
  font-size:13.5px;color:var(--text-3);display:inline-block;
  transition:color var(--ease),transform var(--ease);
}
.footer-col a:hover{color:var(--accent);transform:translateX(2px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:20px 0 30px;border-top:1px solid rgba(120,215,225,.08);
  font-size:12.5px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--nav-w:200px}
  .container{padding:0 24px}
  .content-layout{grid-template-columns:minmax(0,1fr) 268px;gap:32px}
  .faq-wrap{grid-template-columns:220px minmax(0,1fr);gap:32px}
}

@media (max-width:1023px){
  :root{--nav-w:72px}
  .side-nav{padding:20px 10px 16px;overflow:hidden}
  .side-nav:hover{width:236px;box-shadow:var(--shadow-mid);overflow:visible}
  .side-nav .brand__text,
  .side-nav .nav-item__label,
  .side-nav .side-nav__foot .btn span,
  .side-nav .privacy-link{opacity:0;pointer-events:none;transition:opacity 160ms ease}
  .side-nav:hover .brand__text,
  .side-nav:hover .nav-item__label,
  .side-nav:hover .side-nav__foot .btn span,
  .side-nav:hover .privacy-link{opacity:1;pointer-events:auto}
  .side-nav .nav-item{justify-content:center}
  .side-nav:hover .nav-item{justify-content:flex-start}
  .side-nav__brand{justify-content:center}
  .side-nav:hover .side-nav__brand{justify-content:flex-start}
  .side-nav .btn{padding:0;width:44px}
  .side-nav:hover .btn{width:100%;padding:0 22px}
  .content-layout{grid-template-columns:minmax(0,1fr)}
  .page-aside{position:static}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat{border-bottom:1px solid rgba(120,215,225,.1)}
  .stat:nth-child(2n){border-right:0}
  .stat:nth-last-child(-n+2){border-bottom:0}
  .faq-wrap{grid-template-columns:minmax(0,1fr);gap:24px}
  .compare-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}

@media (max-width:767px){
  body{padding-left:0;padding-top:56px}
  .side-nav{display:none}
  .topbar{display:flex}
  .container{padding:0 18px}
  .page-hero{padding:52px 0 42px}
  .page-hero__sub{font-size:15.5px}
  .page-hero__meta{gap:10px;margin-top:22px}
  .mini-chip{font-size:12.5px;padding:8px 12px}
  .section{padding:56px 0}
  .section--tight{padding:44px 0}
  .feature-row{grid-template-columns:minmax(0,1fr);gap:22px;padding:30px 0}
  .feature-row--reverse .feature-row__media{order:0}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat{padding:26px 16px}
  .cta-band{padding:36px 22px;border-radius:18px}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;padding:44px 0 30px;gap:28px}
  .modal{padding:16px}
  .modal__panel{padding:26px 20px 22px}
  .faq-q{font-size:16px;padding:16px 18px}
  .faq-a__inner{padding:0 18px 18px 18px}
}

@media (max-width:520px){
  .stats-grid{grid-template-columns:minmax(0,1fr)}
  .stat{border-right:0;border-bottom:1px solid rgba(120,215,225,.1)}
  .stat:last-child{border-bottom:0}
  .page-hero h1{font-size:30px}
  .cta-band h2{font-size:21px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* roulang page: category3 */
:root{
  --bg-0:#060B10;
  --bg-1:#0A131B;
  --bg-2:#0E1C26;
  --glass:rgba(16,34,46,0.55);
  --line:rgba(120,215,225,0.12);
  --line-strong:rgba(120,215,225,0.34);
  --brand:#3B6EF6;
  --cyan:#2BD9C2;
  --amber:#FFB03A;
  --text:#E8F2F6;
  --muted:#A7BBC7;
  --dim:#6E8493;
  --danger:#FF6B6B;
  --radius-card:18px;
  --radius-btn:12px;
  --radius-img:14px;
  --shadow-low:0 2px 8px rgba(0,0,0,.28);
  --shadow-mid:0 14px 36px rgba(0,0,0,.38);
  --shadow-glow:0 0 24px rgba(59,110,246,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-w:236px;
  --container:1160px;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{list-style:none;padding:0;}
a{color:var(--brand);text-decoration:none;transition:color .26s var(--ease);}
img{max-width:100%;display:block;}
button{font-family:inherit;background:none;border:0;color:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--nav-w);
  display:flex;
  flex-direction:column;
  padding:26px 18px 22px;
  background:linear-gradient(180deg,rgba(10,19,27,.96),rgba(6,11,16,.98));
  border-right:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  z-index:60;
  transition:width .28s var(--ease);
}
.side-nav::after{
  content:"";
  position:absolute;
  top:0;right:-1px;width:1px;height:180px;
  background:linear-gradient(180deg,transparent,rgba(59,110,246,.7),transparent);
  animation:scanDrop 7s linear infinite;
}
@keyframes scanDrop{
  0%{transform:translateY(-200px);opacity:0;}
  20%{opacity:1;}
  100%{transform:translateY(120vh);opacity:0;}
}
.brand{
  display:flex;
  align-items:center;
  gap:11px;
  padding:6px 8px 20px;
  color:var(--text);
}
.brand__mark{
  position:relative;
  flex:0 0 auto;
  width:34px;height:34px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--cyan));
  box-shadow:0 0 18px rgba(59,110,246,.5);
}
.brand__mark::before{
  content:"";
  position:absolute;inset:9px 8px;
  border-left:2px solid rgba(255,255,255,.92);
  border-right:2px solid rgba(255,255,255,.92);
  border-radius:2px;
}
.brand__mark::after{
  content:"";
  position:absolute;top:50%;left:50%;
  width:6px;height:6px;border-radius:50%;
  background:#fff;
  transform:translate(-50%,-50%);
  box-shadow:0 0 10px #fff;
}
.brand__text{
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  line-height:1.35;
}
.side-nav__divider{
  height:1px;
  margin:0 8px 18px;
  background:linear-gradient(90deg,rgba(120,215,225,0),rgba(120,215,225,.28),rgba(120,215,225,0));
}
.side-nav__menu{
  display:flex;
  flex-direction:column;
  gap:6px;
  flex:1 1 auto;
  overflow-y:auto;
}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  padding:11px 12px;
  border-radius:12px;
  color:var(--muted);
  font-size:15px;
  font-weight:500;
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.nav-item i{
  width:18px;
  text-align:center;
  font-size:15px;
  color:var(--dim);
  transition:color .2s var(--ease);
}
.nav-item:hover{
  background:rgba(120,215,225,.06);
  color:var(--text);
}
.nav-item:hover i{color:var(--cyan);}
.nav-item.is-active{
  background:var(--glass);
  border-color:var(--line);
  color:var(--text);
}
.nav-item.is-active i{color:var(--brand);}
.nav-item.is-active::before{
  content:"";
  position:absolute;
  left:-18px;top:50%;
  width:3px;height:22px;
  margin-top:-11px;
  border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--brand),var(--cyan));
  box-shadow:0 0 14px rgba(59,110,246,.8);
}
.side-nav__foot{
  padding-top:16px;
  border-top:1px solid var(--line);
  margin-top:12px;
}
.side-nav__foot .btn{width:100%;justify-content:center;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  padding:13px 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),background .26s var(--ease),color .26s var(--ease),border-color .26s var(--ease);
}
.btn--primary{
  background:linear-gradient(135deg,var(--brand),#5B87FF);
  color:#fff;
  box-shadow:var(--shadow-glow);
}
.btn--primary:hover{
  transform:translateY(-2px);
  box-shadow:0 0 34px rgba(59,110,246,.65);
}
.btn--primary:active{transform:translateY(0);box-shadow:0 0 18px rgba(59,110,246,.5);}
.btn--ghost{
  background:var(--glass);
  border-color:var(--line);
  color:var(--text);
}
.btn--ghost:hover{
  border-color:var(--line-strong);
  color:var(--cyan);
}
.btn--sm{padding:10px 18px;font-size:14px;}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;}

/* ---------- 主体布局 ---------- */
.site-main{
  margin-left:var(--nav-w);
  min-height:100vh;
  transition:margin-left .28s var(--ease);
}

/* ---------- 移动端顶栏 ---------- */
.mobile-bar{
  display:none;
  position:sticky;
  top:0;
  z-index:70;
  height:56px;
  align-items:center;
  justify-content:space-between;
  padding:0 18px;
  background:rgba(10,19,27,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.mobile-bar .brand{padding:0;gap:9px;}
.mobile-bar .brand__mark{width:28px;height:28px;border-radius:9px;}
.mobile-bar .brand__text{font-size:14px;}
.mobile-bar__toggle{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text);
  font-size:17px;
}
.mobile-bar__toggle:hover{color:var(--cyan);border-color:var(--line-strong);}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;
  inset:0 0 0 auto;
  width:300px;
  max-width:86vw;
  z-index:90;
  transform:translateX(102%);
  transition:transform .3s var(--ease);
  background:linear-gradient(180deg,rgba(10,19,27,.99),rgba(6,11,16,.99));
  border-left:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:20px 18px 26px;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
  margin-bottom:16px;
  font-weight:700;
  font-size:15px;
}
.drawer__close{
  width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--line);
  color:var(--muted);
}
.drawer__close:hover{color:var(--text);}
.drawer__menu{display:flex;flex-direction:column;gap:6px;flex:1 1 auto;}
.drawer__cta{width:100%;margin-top:18px;}
.drawer-overlay{
  position:fixed;inset:0;
  background:rgba(3,7,10,.62);
  backdrop-filter:blur(4px);
  z-index:85;
  opacity:0;pointer-events:none;
  transition:opacity .3s var(--ease);
}
.drawer-overlay.is-open{opacity:1;pointer-events:auto;}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:104px 0 76px;
  background:var(--bg-1);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(120,215,225,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,215,225,.055) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:linear-gradient(180deg,#000,transparent 88%);
  mask-image:linear-gradient(180deg,#000,transparent 88%);
}
.page-hero__media{
  position:absolute;
  top:-18%;right:-8%;
  width:54%;height:150%;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;
  background-position:center;
  opacity:.2;
  -webkit-mask-image:radial-gradient(circle at 62% 44%,#000 0%,transparent 72%);
  mask-image:radial-gradient(circle at 62% 44%,#000 0%,transparent 72%);
}
.page-hero__inner{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  font-size:13px;
  color:var(--dim);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--dim);}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb span.sep{opacity:.55;}
.page-hero h1{
  font-size:clamp(30px,4.4vw,54px);
  font-weight:700;
  line-height:1.25;
  letter-spacing:-.01em;
  margin-bottom:18px;
}
.page-hero__lead{
  font-size:17px;
  line-height:1.85;
  color:var(--muted);
  max-width:660px;
}
.hero-tags{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:28px;
}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--muted);
  background:var(--glass);
  border:1px solid var(--line);
}
.tag i{color:var(--cyan);font-size:11px;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section__head{margin-bottom:44px;max-width:720px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;
  letter-spacing:.06em;
  color:var(--cyan);
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--cyan));
}
.section__head h2{
  font-size:clamp(24px,2.6vw,34px);
  font-weight:700;
  line-height:1.35;
  letter-spacing:-.01em;
  margin-bottom:14px;
}
.section__head p{color:var(--muted);font-size:16px;}

/* ---------- 数据条 ---------- */
.stat-bar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-low);
}
.stat-bar__item{
  position:relative;
  padding:30px 26px;
  border-right:1px solid var(--line);
}
.stat-bar__item:last-child{border-right:0;}
.stat-bar__num{
  font-size:34px;
  font-weight:700;
  line-height:1.1;
  color:var(--cyan);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.stat-bar__num small{
  font-size:14px;
  font-weight:600;
  color:var(--muted);
  margin-left:5px;
}
.stat-bar__item p{
  margin-top:10px;
  font-size:14px;
  line-height:1.7;
  color:var(--dim);
}
.stat-bar__item::after{
  content:"";
  position:absolute;
  left:26px;bottom:22px;
  width:26px;height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),transparent);
}

/* ---------- 问答清单 ---------- */
.faq-list{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.faq-item{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  overflow:hidden;
  transition:border-color .26s var(--ease),box-shadow .26s var(--ease),transform .26s var(--ease);
}
.faq-item:hover{
  border-color:var(--line-strong);
  transform:translateY(-2px);
  box-shadow:var(--shadow-mid);
}
.faq-item.is-open{
  border-color:var(--line-strong);
  box-shadow:var(--shadow-mid);
}
.faq-item.is-open::before{
  content:"";
  position:absolute;
  left:0;top:18px;bottom:18px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--brand),var(--cyan));
  box-shadow:0 0 14px rgba(59,110,246,.7);
}
.faq-item__q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 26px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--text);
  line-height:1.6;
}
.faq-item__q i{
  flex:0 0 auto;
  font-size:14px;
  color:var(--brand);
  transition:transform .26s var(--ease),color .26s var(--ease);
}
.faq-item.is-open .faq-item__q i{transform:rotate(90deg);color:var(--cyan);}
.faq-item__a{
  max-height:0;
  overflow:hidden;
  transition:max-height .34s var(--ease);
}
.faq-item__inner{
  padding:0 26px 24px;
  border-top:1px solid var(--line);
  margin-top:2px;
  padding-top:18px;
}
.faq-item__inner p{
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}

/* ---------- 两列对照 ---------- */
.compare{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.compare__col{
  position:relative;
  padding:32px 30px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--bg-1);
  overflow:hidden;
}
.compare__col::after{
  content:"";
  position:absolute;
  top:0;left:0;right:0;height:3px;
  opacity:.85;
}
.compare__col--a::after{background:linear-gradient(90deg,var(--brand),rgba(59,110,246,0));}
.compare__col--b::after{background:linear-gradient(90deg,var(--amber),rgba(255,176,58,0));}
.compare__col h3{
  display:flex;align-items:center;gap:10px;
  font-size:20px;font-weight:600;
  margin-bottom:8px;
}
.compare__col h3 i{font-size:16px;}
.compare__col--a h3 i{color:var(--brand);}
.compare__col--b h3 i{color:var(--amber);}
.compare__col > p{
  font-size:14px;
  color:var(--dim);
  margin-bottom:20px;
}
.compare__col ul{display:flex;flex-direction:column;gap:14px;}
.compare__col li{
  position:relative;
  padding-left:22px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}
.compare__col li::before{
  content:"";
  position:absolute;
  left:0;top:12px;
  width:10px;height:2px;
  border-radius:2px;
  background:var(--dim);
}
.compare__col--a li::before{background:var(--brand);}
.compare__col--b li::before{background:var(--amber);}

/* ---------- 图文块 ---------- */
.split{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.split__media{
  position:relative;
  border-radius:var(--radius-img);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-mid);
  aspect-ratio:16/10;
  background:var(--bg-2);
}
.split__media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.split__media:hover img{transform:scale(1.03);}
.split__media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,16,.1),rgba(6,11,16,.42));
}
.check-list{
  display:flex;
  flex-direction:column;
  gap:18px;
  margin-top:26px;
}
.check-list li{
  display:flex;
  gap:14px;
  align-items:flex-start;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}
.check-list .num{
  flex:0 0 auto;
  width:28px;height:28px;
  display:flex;align-items:center;justify-content:center;
  border-radius:9px;
  font-size:13px;
  font-weight:700;
  color:var(--cyan);
  background:rgba(43,217,194,.09);
  border:1px solid rgba(43,217,194,.28);
  font-variant-numeric:tabular-nums;
}
.check-list strong{color:var(--text);font-weight:600;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(14,28,38,.94),rgba(10,19,27,.94));
  padding:56px 52px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  box-shadow:var(--shadow-mid);
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-60%;left:-10%;
  width:60%;height:220%;
  background:linear-gradient(45deg,transparent 42%,rgba(59,110,246,.16) 50%,transparent 58%);
  animation:sweep 9s linear infinite;
}
@keyframes sweep{
  0%{transform:translateX(-30%);}
  100%{transform:translateX(220%);}
}
.cta-band__text{position:relative;z-index:2;max-width:620px;}
.cta-band__text h2{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:700;
  margin-bottom:12px;
  line-height:1.4;
}
.cta-band__text p{color:var(--muted);font-size:15px;}
.cta-band__actions{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;gap:14px;
  flex:0 0 auto;
}

/* ---------- 弹层 ---------- */
.modal{
  position:fixed;
  inset:0;
  z-index:120;
  display:none;
  align-items:center;
  justify-content:center;
  padding:24px;
}
.modal.is-open{display:flex;}
.modal__overlay{
  position:absolute;inset:0;
  background:rgba(3,7,10,.7);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.modal__dialog{
  position:relative;
  width:100%;
  max-width:560px;
  max-height:calc(100vh - 48px);
  overflow-y:auto;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(14,28,38,.98),rgba(8,15,21,.99));
  box-shadow:var(--shadow-mid);
  padding:34px 32px 26px;
  animation:modalIn .24s var(--ease);
}
@keyframes modalIn{
  from{opacity:0;transform:translateY(14px) scale(.97);}
  to{opacity:1;transform:translateY(0) scale(1);}
}
.modal__head{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:18px;
  margin-bottom:8px;
}
.modal__head h3{font-size:22px;font-weight:700;line-height:1.4;}
.modal__head p{font-size:14px;color:var(--dim);margin-top:8px;}
.modal__close{
  flex:0 0 auto;
  width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  border:1px solid var(--line);
  color:var(--muted);
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.modal__close:hover{color:var(--text);border-color:var(--line-strong);}
.form-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-top:22px;
}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:var(--muted);}
.field input,
.field select,
.field textarea{
  width:100%;
  padding:12px 14px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(6,11,16,.72);
  color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{resize:vertical;min-height:96px;line-height:1.7;}
.field input::placeholder,
.field textarea::placeholder{color:#58707e;}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(59,110,246,.22);
}
.field.has-error input,
.field.has-error select,
.field.has-error textarea{border-color:var(--danger);}
.field .err{font-size:13px;color:var(--danger);display:none;}
.field.has-error .err{display:block;}
.checkbox-row{
  grid-column:1 / -1;
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:var(--muted);
}
.checkbox-row input{width:18px;height:18px;margin-top:5px;accent-color:var(--brand);}
.form-actions{
  grid-column:1 / -1;
  display:flex;
  align-items:center;
  gap:14px;
  margin-top:4px;
}
.form-note{
  grid-column:1 / -1;
  font-size:13px;
  color:var(--dim);
  border-top:1px solid var(--line);
  padding-top:14px;
  line-height:1.7;
}
.form-success{
  display:none;
  margin-top:18px;
  padding:16px 18px;
  border-radius:12px;
  border:1px solid rgba(43,217,194,.34);
  background:rgba(43,217,194,.08);
  color:var(--cyan);
  font-size:14px;
}
.form-success.is-visible{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:72px 0 30px;
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(59,110,246,.6),rgba(43,217,194,.5),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:11px;
  margin-bottom:16px;
}
.footer-brand strong{font-size:16px;}
.site-footer p{
  font-size:14px;
  color:var(--dim);
  line-height:1.8;
  max-width:340px;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{
  font-size:14px;
  color:var(--muted);
  display:inline-block;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col a:hover{color:var(--brand);transform:translateX(2px);}
.footer-bottom{
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--dim);
}

/* ---------- 响应式 ---------- */
@media (min-width:1024px) and (max-width:1279px){
  :root{--nav-w:200px;}
  .container{padding:0 26px;}
}
@media (min-width:768px) and (max-width:1023px){
  :root{--nav-w:72px;}
  .side-nav{padding:22px 12px 18px;overflow:hidden;}
  .side-nav:hover{width:236px;padding:22px 18px 18px;}
  .brand{padding:6px 6px 18px;gap:0;justify-content:center;}
  .side-nav:hover .brand{gap:11px;justify-content:flex-start;}
  .brand__text{display:none;}
  .side-nav:hover .brand__text{display:block;}
  .nav-item{justify-content:center;padding:12px 8px;gap:0;}
  .side-nav:hover .nav-item{justify-content:flex-start;gap:12px;padding:11px 12px;}
  .nav-item__label{display:none;}
  .side-nav:hover .nav-item__label{display:inline;}
  .side-nav__foot .btn{padding:12px 0;font-size:0;gap:0;}
  .side-nav__foot .btn i{font-size:15px;}
  .side-nav:hover .side-nav__foot .btn{font-size:15px;gap:9px;padding:13px 24px;}
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .stat-bar__item:nth-child(2){border-right:0;}
  .stat-bar__item:nth-child(1),
  .stat-bar__item:nth-child(2){border-bottom:1px solid var(--line);}
  .compare{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;gap:34px;}
  .split__media{order:-1;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:44px 34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:767px){
  .side-nav{display:none;}
  .site-main{margin-left:0;}
  .mobile-bar{display:flex;}
  .container{padding:0 18px;}
  .page-hero{padding:56px 0 48px;}
  .page-hero__media{width:86%;opacity:.14;}
  .page-hero h1{font-size:clamp(26px,7.6vw,34px);}
  .page-hero__lead{font-size:15px;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .section__head{margin-bottom:30px;}
  .stat-bar{grid-template-columns:1fr 1fr;}
  .stat-bar__item{padding:22px 18px;}
  .stat-bar__num{font-size:26px;}
  .stat-bar__item::after{left:18px;}
  .faq-item__q{padding:18px;font-size:16px;}
  .faq-item__inner{padding:16px 18px 20px;}
  .compare__col{padding:24px 20px;}
  .split{gap:26px;}
  .cta-band{padding:32px 22px;gap:26px;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{flex:1 1 auto;}
  .modal{padding:16px;}
  .modal__dialog{padding:26px 20px 22px;max-height:calc(100vh - 32px);}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding:52px 0 26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition-duration:.01ms !important;}
}