/* roulang page: index */
:root{
  --xg-bg:#060A18;
  --xg-surface:#0E1430;
  --xg-elevate:#141C3D;
  --xg-primary:#38BDF8;
  --xg-secondary:#8B7CFF;
  --xg-accent:#FFC24B;
  --xg-text:#E8EDFB;
  --xg-text-2:#A6B0CF;
  --xg-text-3:#6B7794;
  --xg-border:rgba(255,255,255,.08);
  --xg-border-2:rgba(255,255,255,.14);
  --xg-ink:#101A38;
  --xg-ink-2:#3C4A6E;
  --xg-light-bg:#F2F5FC;
  --xg-radius-xs:10px;
  --xg-radius:16px;
  --xg-radius-lg:20px;
  --xg-shadow-sm:0 2px 8px rgba(3,6,20,.35);
  --xg-shadow-md:0 12px 32px rgba(3,6,20,.45);
  --xg-shadow-lg:0 24px 60px rgba(3,6,20,.55);
  --xg-glow-1:0 0 24px rgba(56,189,248,.35);
  --xg-glow-2:0 0 40px rgba(139,124,255,.45);
  --xg-grad:linear-gradient(135deg,#38BDF8 0%,#8B7CFF 100%);
  --xg-grad-soft:linear-gradient(135deg,rgba(56,189,248,.16) 0%,rgba(139,124,255,.16) 100%);
  --xg-font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --xg-font-num:"Inter","Space Grotesk","PingFang SC","Microsoft YaHei",sans-serif;
  --xg-ease:180ms cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--xg-bg);color:var(--xg-text);
  font-family:var(--xg-font);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.01em}
p{margin:0}
time{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--xg-primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(56,189,248,.32)}

.xg-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.xg-section{padding:88px 0;position:relative}
.xg-section--tight{padding:64px 0}
.xg-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--xg-primary);
  text-transform:uppercase;font-weight:600;font-family:var(--xg-font-num);
}
.xg-eyebrow::before{content:"";width:18px;height:1px;background:var(--xg-grad)}
.xg-h2{font-size:clamp(24px,2.6vw,34px);margin-top:14px}
.xg-lead{color:var(--xg-text-2);font-size:16px;line-height:1.9;max-width:780px;margin-top:16px}
.xg-sechead{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:44px}
.xg-more{
  font-size:14px;color:var(--xg-primary);display:inline-flex;align-items:center;gap:6px;
  transition:gap var(--xg-ease),color var(--xg-ease);
}
.xg-more:hover{gap:12px;color:#7DD3FC}
.xg-more::after{content:"→"}

/* ============ 顶部信息条 ============ */
.xg-topbar{
  background:#04070F;border-bottom:1px solid rgba(255,255,255,.055);
  font-size:12.5px;color:var(--xg-text-3);position:relative;z-index:60;
}
.xg-topbar__inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:36px;
}
.xg-topbar__left{display:flex;align-items:center;gap:10px;white-space:nowrap;overflow:hidden}
.xg-topbar__dot{
  width:6px;height:6px;border-radius:50%;background:#4ADE80;flex:none;
  box-shadow:0 0 0 3px rgba(74,222,128,.15);
}
.xg-topbar__sep{width:1px;height:12px;background:rgba(255,255,255,.12);flex:none}
.xg-topbar__mid{color:#556080;letter-spacing:.02em}
.xg-topbar__right{display:flex;align-items:center;gap:18px;flex:none}
.xg-topbar__right a{color:var(--xg-text-2);transition:color var(--xg-ease)}
.xg-topbar__right a:hover{color:var(--xg-primary)}

/* ============ 主导航 ============ */
.xg-header{
  position:sticky;top:0;z-index:50;
  background:rgba(6,10,24,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:background var(--xg-ease),border-color var(--xg-ease),box-shadow var(--xg-ease);
}
.xg-header.is-stuck{background:rgba(6,10,24,.9);border-bottom-color:var(--xg-border);box-shadow:0 12px 34px rgba(2,5,16,.55)}
.xg-nav{display:flex;align-items:center;gap:28px;min-height:68px}
.xg-logo{display:flex;align-items:center;gap:12px;flex:none}
.xg-logo__mark{
  width:38px;height:38px;border-radius:12px;background:var(--xg-grad);
  display:grid;place-items:center;box-shadow:var(--xg-glow-1);flex:none;
}
.xg-logo__mark span{
  width:12px;height:12px;border-radius:3px;background:#06101F;
  box-shadow:0 0 0 2px rgba(6,16,31,.35) inset;transform:rotate(45deg);
}
.xg-logo__text{display:flex;flex-direction:column;line-height:1.15}
.xg-logo__text strong{font-size:17px;letter-spacing:.06em;font-weight:700}
.xg-logo__text em{font-style:normal;font-size:11px;color:var(--xg-text-3);letter-spacing:.18em}
.xg-menu{display:flex;align-items:center;gap:6px;margin-left:auto}
.xg-menu a{
  position:relative;padding:10px 14px;font-size:15px;color:var(--xg-text-2);
  border-radius:var(--xg-radius-xs);transition:color var(--xg-ease),background var(--xg-ease);
}
.xg-menu a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--xg-grad);transform:scaleX(0);transform-origin:left;transition:transform var(--xg-ease);
}
.xg-menu a:hover{color:var(--xg-text);background:rgba(255,255,255,.045)}
.xg-menu a.active{color:#FFFFFF}
.xg-menu a.active::after{transform:scaleX(1)}
.xg-nav__actions{display:flex;align-items:center;gap:12px;flex:none}
.xg-search{
  display:flex;align-items:center;gap:8px;height:38px;padding:0 12px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--xg-border);
  transition:border-color var(--xg-ease),box-shadow var(--xg-ease);
}
.xg-search:focus-within{border-color:rgba(56,189,248,.55);box-shadow:var(--xg-glow-1)}
.xg-search svg{width:15px;height:15px;stroke:var(--xg-text-3);fill:none;stroke-width:1.8;flex:none}
.xg-search input{
  width:96px;border:0;background:none;color:var(--xg-text);font-size:13.5px;outline:none;
  transition:width var(--xg-ease);
}
.xg-search input::placeholder{color:var(--xg-text-3)}
.xg-search input:focus{width:130px}
.xg-burger{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--xg-border);
  background:rgba(255,255,255,.05);place-items:center;
}
.xg-burger i{display:block;width:17px;height:1.6px;background:var(--xg-text);border-radius:2px;position:relative}
.xg-burger i::before,.xg-burger i::after{
  content:"";position:absolute;left:0;width:17px;height:1.6px;background:var(--xg-text);border-radius:2px;
}
.xg-burger i::before{top:-5.5px}
.xg-burger i::after{top:5.5px}

/* ============ 抽屉 ============ */
.xg-drawer{position:fixed;inset:0;z-index:90;pointer-events:none}
.xg-drawer__mask{
  position:absolute;inset:0;background:rgba(3,6,18,.72);opacity:0;
  transition:opacity var(--xg-ease);backdrop-filter:blur(3px);
}
.xg-drawer__panel{
  position:absolute;top:0;right:0;height:100%;width:320px;max-width:86vw;
  background:linear-gradient(180deg,#0B1130 0%,#070C1F 100%);
  border-left:1px solid var(--xg-border);padding:28px 24px;
  transform:translateX(102%);transition:transform 260ms cubic-bezier(.22,.61,.36,1);
  display:flex;flex-direction:column;gap:26px;overflow-y:auto;
}
.xg-drawer.is-open{pointer-events:auto}
.xg-drawer.is-open .xg-drawer__mask{opacity:1}
.xg-drawer.is-open .xg-drawer__panel{transform:translateX(0)}
.xg-drawer__head{display:flex;align-items:center;justify-content:space-between}
.xg-drawer__close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--xg-border);
  display:grid;place-items:center;color:var(--xg-text-2);font-size:18px;line-height:1;
}
.xg-drawer__group-title{font-size:12px;letter-spacing:.16em;color:var(--xg-text-3);margin-bottom:12px}
.xg-drawer__links{display:flex;flex-direction:column;gap:4px}
.xg-drawer__links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 14px;border-radius:12px;font-size:15px;color:var(--xg-text-2);
  border:1px solid transparent;transition:all var(--xg-ease);
}
.xg-drawer__links a::after{content:"›";color:var(--xg-text-3)}
.xg-drawer__links a:hover{background:rgba(255,255,255,.05);color:var(--xg-text)}
.xg-drawer__links a.active{
  background:var(--xg-grad-soft);border-color:rgba(56,189,248,.32);color:#FFFFFF;
}
.xg-drawer__links a.active::after{color:var(--xg-primary)}

/* ============ 按钮 ============ */
.xg-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--xg-radius-xs);
  font-size:15px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
  transition:transform var(--xg-ease),box-shadow var(--xg-ease),filter var(--xg-ease),background var(--xg-ease),border-color var(--xg-ease);
}
.xg-btn--primary{background:var(--xg-grad);color:#04101E;box-shadow:var(--xg-glow-1)}
.xg-btn--primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 34px rgba(56,189,248,.5)}
.xg-btn--primary:active{transform:translateY(1px);box-shadow:0 0 16px rgba(56,189,248,.32)}
.xg-btn--ghost{border:1px solid rgba(56,189,248,.45);color:var(--xg-primary);background:rgba(56,189,248,.05)}
.xg-btn--ghost:hover{background:rgba(56,189,248,.13);border-color:rgba(56,189,248,.75);transform:translateY(-1px)}
.xg-btn--line{border:1px solid var(--xg-border-2);color:var(--xg-text)}
.xg-btn--line:hover{border-color:rgba(56,189,248,.5);color:var(--xg-primary)}
.xg-btn--sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:9px}
.xg-btn--block{width:100%}
.xg-btn:disabled{opacity:.45;cursor:not-allowed}

/* ============ 徽章 / 标签 ============ */
.xg-badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 11px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(56,189,248,.13);color:#7ED8FB;border:1px solid rgba(56,189,248,.22);
}
.xg-badge--amber{background:rgba(255,194,75,.1);color:#FFC24B;border-color:rgba(255,194,75,.32)}
.xg-badge--violet{background:rgba(139,124,255,.13);color:#B7ACFF;border-color:rgba(139,124,255,.26)}
.xg-badge--solid{background:var(--xg-grad);color:#04101E;border:0}

/* ============ Hero ============ */
.xg-hero{position:relative;overflow:hidden;padding:76px 0 88px}
.xg-hero__bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(6,10,24,.72) 0%,rgba(6,10,24,.9) 62%,var(--xg-bg) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.55;
}
.xg-hero__stars{
  position:absolute;inset:0;pointer-events:none;opacity:.6;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 22%,rgba(255,255,255,.5),transparent),
    radial-gradient(1.4px 1.4px at 78% 12%,rgba(139,124,255,.6),transparent),
    radial-gradient(1.2px 1.2px at 34% 74%,rgba(56,189,248,.55),transparent),
    radial-gradient(1.5px 1.5px at 88% 66%,rgba(255,255,255,.36),transparent),
    radial-gradient(1.2px 1.2px at 56% 40%,rgba(255,255,255,.28),transparent);
}
.xg-hero__inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.xg-hero h1{font-size:clamp(30px,4.4vw,52px);margin-top:20px;letter-spacing:.005em}
.xg-hero h1 span{
  background:var(--xg-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.xg-hero__sub{margin-top:22px;color:var(--xg-text-2);font-size:17px;line-height:1.9;max-width:600px}
.xg-hero__cta{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.xg-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin-top:32px;
  font-size:13px;color:var(--xg-text-3);font-family:var(--xg-font-num);
}
.xg-meta li{display:flex;align-items:center;gap:8px;position:relative}
.xg-meta li+li::before{
  content:"";width:1px;height:12px;background:rgba(255,255,255,.14);
  position:absolute;left:-11px;top:50%;transform:translateY(-50%);
}
.xg-hero__visual{position:relative}
.xg-glass{
  background:linear-gradient(160deg,rgba(20,28,61,.82),rgba(10,15,36,.72));
  border:1px solid rgba(255,255,255,.1);border-radius:var(--xg-radius-lg);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--xg-shadow-lg);overflow:hidden;
}
.xg-shot{border-radius:var(--xg-radius);overflow:hidden;border:1px solid rgba(255,255,255,.09)}
.xg-shot img{width:100%;aspect-ratio:16/10;object-fit:cover}
.xg-hero__card{padding:16px}
.xg-hero__cardhead{
  display:flex;align-items:center;justify-content:space-between;
  padding:2px 6px 14px;font-size:12.5px;color:var(--xg-text-3);
}
.xg-hero__cardhead b{color:var(--xg-text);font-weight:600;font-size:13.5px}
.xg-hero__bars{display:flex;gap:6px}
.xg-hero__bars i{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.16)}
.xg-hero__float{
  position:absolute;left:-26px;bottom:-30px;width:222px;padding:16px 18px;
  background:linear-gradient(150deg,rgba(20,28,61,.96),rgba(12,18,44,.96));
  border:1px solid rgba(56,189,248,.28);border-radius:var(--xg-radius);
  box-shadow:var(--xg-shadow-md);
}
.xg-hero__float em{font-style:normal;font-size:12px;color:var(--xg-text-3);display:block}
.xg-hero__float strong{
  display:block;font-family:var(--xg-font-num);font-size:24px;letter-spacing:.01em;
  background:var(--xg-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  margin:4px 0 8px;
}
.xg-hero__progress{height:5px;border-radius:99px;background:rgba(255,255,255,.1);overflow:hidden}
.xg-hero__progress i{display:block;height:100%;width:72%;background:var(--xg-grad);border-radius:99px}

/* ============ 价值卡片 2+1 ============ */
.xg-value{display:grid;grid-template-columns:1.5fr 1fr;gap:24px}
.xg-value__left{display:flex;flex-direction:column;gap:24px}
.xg-vcard{
  background:var(--xg-elevate);border:1px solid var(--xg-border);border-radius:var(--xg-radius);
  padding:28px;position:relative;overflow:hidden;
  transition:transform var(--xg-ease),border-color var(--xg-ease),box-shadow var(--xg-ease);
}
.xg-vcard::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);
}
.xg-vcard:hover{transform:translateY(-2px);border-color:rgba(56,189,248,.38);box-shadow:var(--xg-shadow-md)}
.xg-vcard__ico{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px;
  background:var(--xg-grad-soft);border:1px solid rgba(56,189,248,.24);
}
.xg-vcard__ico svg{width:20px;height:20px;stroke:var(--xg-primary);fill:none;stroke-width:1.7}
.xg-vcard h3{font-size:19px;margin-bottom:10px}
.xg-vcard p{color:var(--xg-text-2);font-size:15px;line-height:1.85}
.xg-vcard__row{display:grid;grid-template-columns:auto 1fr;gap:0 22px;align-items:start}
.xg-vcard--tall{
  background:linear-gradient(170deg,#161F45 0%,#0D1433 100%);
  display:flex;flex-direction:column;
}
.xg-vcard--tall .xg-vcard__figure{
  margin-top:auto;padding-top:26px;
}
.xg-vcard--tall .xg-vcard__figure img{
  border-radius:var(--xg-radius);aspect-ratio:16/11;object-fit:cover;border:1px solid rgba(255,255,255,.08);
}
.xg-keypoint{display:flex;gap:10px;margin-top:16px;font-size:13.5px;color:var(--xg-text-3)}
.xg-keypoint i{
  width:6px;height:6px;border-radius:50%;background:var(--xg-primary);flex:none;margin-top:11px;
  box-shadow:0 0 12px rgba(56,189,248,.7);
}

/* ============ 轮播 ============ */
.xg-carousel{position:relative}
.xg-carousel__track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 2px 22px;scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.xg-carousel__track::-webkit-scrollbar{display:none}
.xg-frame{
  flex:0 0 336px;scroll-snap-align:start;background:var(--xg-surface);
  border:1px solid var(--xg-border);border-radius:var(--xg-radius-lg);overflow:hidden;
  transition:border-color var(--xg-ease),transform var(--xg-ease),box-shadow var(--xg-ease);
}
.xg-frame img{width:100%;aspect-ratio:16/10;object-fit:cover;background:linear-gradient(140deg,#0E1430,#1B2450)}
.xg-frame__body{padding:18px 20px 22px}
.xg-frame__body h3{font-size:16px;margin-bottom:8px}
.xg-frame__body p{font-size:13.5px;color:var(--xg-text-3);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.xg-frame.is-current{border-color:rgba(56,189,248,.6);box-shadow:var(--xg-glow-1);transform:translateY(-2px)}
.xg-carousel__ctrl{display:flex;align-items:center;gap:16px;margin-top:8px}
.xg-carousel__arrow{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--xg-border-2);
  display:grid;place-items:center;color:var(--xg-text-2);transition:all var(--xg-ease);
}
.xg-carousel__arrow:hover{border-color:rgba(56,189,248,.6);color:var(--xg-primary);box-shadow:var(--xg-glow-1)}
.xg-dots{display:flex;gap:8px;margin-left:auto}
.xg-dots button{
  width:8px;height:8px;border-radius:99px;background:rgba(255,255,255,.18);
  transition:all var(--xg-ease);
}
.xg-dots button.is-active{width:26px;background:var(--xg-grad)}

/* ============ 冷白反底 ============ */
.xg-light{background:var(--xg-light-bg);color:var(--xg-ink);position:relative}
.xg-light::before,.xg-light::after{
  content:"";position:absolute;left:0;right:0;height:26px;background:linear-gradient(180deg,#060A18,rgba(242,245,252,0));
  top:0;
}
.xg-light::after{background:linear-gradient(0deg,#060A18,rgba(242,245,252,0));top:auto;bottom:0}
.xg-light .xg-eyebrow{color:#0E7FB8}
.xg-light .xg-h2{color:var(--xg-ink)}
.xg-light .xg-lead{color:var(--xg-ink-2)}
.xg-light .xg-more{color:#0E7FB8}
.xg-light .xg-more:hover{color:#0B6B9C}
.xg-req{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.xg-req__card{
  background:rgba(255,255,255,.72);border:1px solid rgba(24,58,120,.12);
  border-radius:var(--xg-radius);padding:28px;box-shadow:0 10px 30px rgba(16,26,56,.07);
  transition:transform var(--xg-ease),box-shadow var(--xg-ease),border-color var(--xg-ease);
}
.xg-req__card:hover{transform:translateY(-2px);box-shadow:0 18px 40px rgba(16,26,56,.12);border-color:rgba(14,127,184,.35)}
.xg-req__head{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.xg-req__head h3{font-size:17px;color:var(--xg-ink)}
.xg-req__plat{
  font-size:11.5px;font-weight:700;letter-spacing:.1em;color:#0E7FB8;
  background:rgba(56,189,248,.14);border-radius:999px;padding:4px 11px;font-family:var(--xg-font-num);
}
.xg-req__list li{
  display:flex;align-items:flex-start;gap:11px;padding:11px 0;font-size:14.5px;color:var(--xg-ink-2);
  border-bottom:1px dashed rgba(24,58,120,.12);
}
.xg-req__list li:last-child{border-bottom:0}
.xg-req__list i{
  width:8px;height:8px;border-radius:50%;margin-top:9px;flex:none;
  background:#16A34A;box-shadow:0 0 0 3px rgba(22,163,74,.14);
}
.xg-req__list i.warn{background:var(--xg-accent);box-shadow:0 0 0 3px rgba(255,194,75,.2)}
.xg-req__list b{color:var(--xg-ink);font-family:var(--xg-font-num);font-weight:600}

/* ============ 评价墙 ============ */
.xg-wall{columns:2;column-gap:24px}
.xg-quote{
  break-inside:avoid;margin-bottom:24px;padding:26px;
  background:linear-gradient(160deg,rgba(20,28,61,.78),rgba(11,17,42,.7));
  border:1px solid rgba(255,255,255,.09);border-radius:var(--xg-radius);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color var(--xg-ease),transform var(--xg-ease);
}
.xg-quote:nth-child(even){background:linear-gradient(160deg,rgba(26,34,74,.62),rgba(13,19,46,.58))}
.xg-quote:hover{transform:translateY(-2px);border-color:rgba(139,124,255,.42)}
.xg-stars{display:flex;gap:3px;margin-bottom:14px}
.xg-stars i{width:13px;height:13px;background:var(--xg-accent);border-radius:2px;clip-path:polygon(50% 0,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%)}
.xg-quote p{font-size:15px;line-height:1.9;color:var(--xg-text-2)}
.xg-quote__who{display:flex;align-items:center;gap:12px;margin-top:20px}
.xg-avatar{
  width:38px;height:38px;border-radius:50%;flex:none;display:grid;place-items:center;
  font-size:14px;font-weight:700;color:#06101F;background:var(--xg-grad);font-family:var(--xg-font-num);
}
.xg-avatar--b{background:linear-gradient(135deg,#FFC24B,#8B7CFF)}
.xg-avatar--c{background:linear-gradient(135deg,#34D399,#38BDF8)}
.xg-avatar--d{background:linear-gradient(135deg,#8B7CFF,#F472B6)}
.xg-quote__who b{display:block;font-size:14px;color:var(--xg-text);font-weight:600}
.xg-quote__who em{font-style:normal;font-size:12.5px;color:var(--xg-text-3)}

/* ============ 下载区 ============ */
.xg-dl{
  max-width:860px;margin:0 auto;text-align:center;position:relative;
  background:linear-gradient(170deg,rgba(20,28,61,.85),rgba(9,14,34,.85));
  border:1px solid rgba(255,255,255,.1);border-radius:var(--xg-radius-lg);
  padding:44px 40px;box-shadow:var(--xg-shadow-lg);overflow:hidden;
}
.xg-dl::after{
  content:"";position:absolute;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(139,124,255,.22),transparent 68%);
  top:-160px;right:-120px;pointer-events:none;
}
.xg-tabs{display:inline-flex;gap:6px;padding:5px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--xg-border);margin-bottom:26px;flex-wrap:wrap;justify-content:center}
.xg-tabs button{
  padding:9px 18px;border-radius:999px;font-size:13.5px;color:var(--xg-text-2);
  transition:all var(--xg-ease);font-family:var(--xg-font-num);letter-spacing:.02em;
}
.xg-tabs button:hover{color:var(--xg-text)}
.xg-tabs button.is-active{background:var(--xg-grad);color:#04101E;font-weight:600}
.xg-dl__row{display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;margin-top:26px;text-align:left}
.xg-dl__note{font-size:12.5px;color:var(--xg-text-3);line-height:1.9;font-family:var(--xg-font-num);word-break:break-all}
.xg-dl__note b{color:var(--xg-text-2);font-weight:600}
.xg-qr{
  width:118px;height:118px;border-radius:14px;flex:none;
  background:
    repeating-linear-gradient(90deg,#0B1230 0 6px,#E8EDFB 6px 12px),
    repeating-linear-gradient(0deg,#0B1230 0 6px,rgba(232,237,251,.4) 6px 12px);
  background-blend-mode:multiply;
  border:1px solid rgba(255,255,255,.16);position:relative;
}
.xg-qr::after{
  content:"";position:absolute;inset:34%;border-radius:6px;background:var(--xg-grad);
}
.xg-qr__cap{font-size:12px;color:var(--xg-text-3);text-align:center;margin-top:10px}

/* ============ 最新信息 ============ */
.xg-news{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.xg-news__card{
  display:flex;flex-direction:column;gap:14px;padding:26px;
  background:var(--xg-elevate);border:1px solid var(--xg-border);border-radius:var(--xg-radius);
  position:relative;overflow:hidden;transition:transform var(--xg-ease),border-color var(--xg-ease),box-shadow var(--xg-ease);
}
.xg-news__card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--xg-grad);
  opacity:0;transition:opacity var(--xg-ease);
}
.xg-news__card:hover{transform:translateY(-2px);border-color:rgba(56,189,248,.4);box-shadow:var(--xg-shadow-md)}
.xg-news__card:hover::before{opacity:1}
.xg-news__card h3{font-size:17px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.xg-news__card p{
  font-size:14px;color:var(--xg-text-3);line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.xg-news__foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--xg-text-3);font-family:var(--xg-font-num);
  border-top:1px solid var(--xg-border);padding-top:14px;
}
.xg-news__foot span{color:var(--xg-primary)}
.xg-empty{
  grid-column:1/-1;text-align:center;padding:66px 24px;
  border:1px dashed rgba(255,255,255,.16);border-radius:var(--xg-radius);
  background:rgba(255,255,255,.02);
}
.xg-empty svg{width:38px;height:38px;stroke:var(--xg-text-3);fill:none;stroke-width:1.5;margin:0 auto 16px}
.xg-empty p{color:var(--xg-text-2);font-size:15px;margin-bottom:18px}

/* ============ FAQ ============ */
.xg-faq{max-width:900px;margin:0 auto}
.xg-faq__item{
  background:rgba(255,255,255,.72);border:1px solid rgba(24,58,120,.12);
  border-radius:var(--xg-radius);margin-bottom:14px;overflow:hidden;
  transition:border-color var(--xg-ease),box-shadow var(--xg-ease);
}
.xg-faq__item.is-open{border-color:rgba(14,127,184,.4);box-shadow:0 14px 34px rgba(16,26,56,.1)}
.xg-faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--xg-ink);
  min-height:44px;
}
.xg-faq__q i{
  position:relative;width:18px;height:18px;flex:none;transition:transform 200ms ease-out;
}
.xg-faq__q i::before,.xg-faq__q i::after{
  content:"";position:absolute;background:#0E7FB8;border-radius:2px;
}
.xg-faq__q i::before{left:0;top:8px;width:18px;height:2px}
.xg-faq__q i::after{left:8px;top:0;width:2px;height:18px;transition:opacity 200ms ease-out}
.xg-faq__item.is-open .xg-faq__q i{transform:rotate(180deg)}
.xg-faq__item.is-open .xg-faq__q i::after{opacity:0}
.xg-faq__a{
  max-height:0;overflow:hidden;transition:max-height 240ms ease-out;
}
.xg-faq__a p{
  padding:0 24px 22px;font-size:15px;line-height:1.9;color:var(--xg-ink-2);
  border-left:3px solid transparent;
}
.xg-faq__item.is-open .xg-faq__a p{border-left-color:#38BDF8;margin-left:24px;padding-left:18px}

/* ============ 底部 CTA ============ */
.xg-cta{
  position:relative;overflow:hidden;border-top:1px solid var(--xg-border);border-bottom:1px solid var(--xg-border);
  background-image:
    radial-gradient(1.5px 1.5px at 18% 30%,rgba(255,255,255,.4),transparent),
    radial-gradient(1.4px 1.4px at 62% 22%,rgba(56,189,248,.5),transparent),
    radial-gradient(1.2px 1.2px at 84% 70%,rgba(139,124,255,.5),transparent),
    linear-gradient(120deg,rgba(56,189,248,.1),rgba(139,124,255,.12));
  background-color:#080D20;
}
.xg-cta__inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:44px 0;flex-wrap:wrap;
}
.xg-cta__inner h2{font-size:clamp(20px,2.2vw,28px)}
.xg-cta__inner p{color:var(--xg-text-2);font-size:15px;margin-top:10px}

/* ============ 页脚 ============ */
.xg-footer{background:#04070F;border-top:1px solid var(--xg-border);padding:68px 0 0;position:relative}
.xg-footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1.2fr;gap:36px}
.xg-footer__brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.xg-footer__brand strong{font-size:17px;letter-spacing:.06em}
.xg-footer__desc{font-size:13.5px;color:var(--xg-text-3);line-height:1.9;max-width:300px}
.xg-footer__links{display:flex;flex-direction:column;gap:11px;margin-top:18px}
.xg-footer h4{font-size:14px;color:var(--xg-text);margin-bottom:4px;letter-spacing:.04em}
.xg-footer__col a{font-size:13.5px;color:var(--xg-text-3);transition:color var(--xg-ease),padding-left var(--xg-ease)}
.xg-footer__col a:hover{color:var(--xg-primary);padding-left:4px}
.xg-footer__qr{
  display:flex;gap:14px;align-items:center;margin-top:18px;
  padding:14px;border:1px solid var(--xg-border);border-radius:14px;background:rgba(255,255,255,.025);
}
.xg-footer__qr .xg-qr{width:74px;height:74px;border-radius:10px}
.xg-footer__qr small{display:block;font-size:12.5px;color:var(--xg-text-3);line-height:1.8}
.xg-footer__bottom{
  margin-top:56px;border-top:1px solid var(--xg-border);
  padding:22px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:12.5px;color:var(--xg-text-3);
}
.xg-footer__bottom a{color:var(--xg-text-3)}
.xg-footer__bottom a:hover{color:var(--xg-primary)}
.xg-totop{
  position:fixed;right:26px;bottom:26px;width:44px;height:44px;border-radius:50%;
  background:rgba(20,28,61,.9);border:1px solid rgba(56,189,248,.35);display:grid;place-items:center;
  color:var(--xg-primary);opacity:0;pointer-events:none;transform:translateY(10px);
  transition:all var(--xg-ease);z-index:70;backdrop-filter:blur(10px);
}
.xg-totop.is-show{opacity:1;pointer-events:auto;transform:translateY(0)}
.xg-totop:hover{box-shadow:var(--xg-glow-1);border-color:rgba(56,189,248,.7)}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .xg-news{grid-template-columns:repeat(2,1fr)}
  .xg-footer__grid{grid-template-columns:1.5fr 1fr 1fr;gap:32px}
  .xg-topbar__mid{display:none}
}
@media (max-width:992px){
  .xg-menu,.xg-search{display:none}
  .xg-burger{display:grid}
  .xg-nav__actions .xg-btn{display:none}
  .xg-hero__inner{grid-template-columns:1fr;gap:52px}
  .xg-hero{padding:56px 0 72px}
  .xg-hero__float{left:0;bottom:-24px;width:200px}
  .xg-value{grid-template-columns:1fr}
  .xg-req{grid-template-columns:1fr}
  .xg-wall{columns:1}
  .xg-section{padding:64px 0}
  .xg-dl{padding:34px 24px}
  .xg-dl__row{grid-template-columns:1fr;text-align:center;justify-items:center}
  .xg-dl__note{text-align:left}
  .xg-carousel__arrow{display:none}
  .xg-cta__inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:768px){
  .xg-container{padding:0 20px}
  .xg-news{grid-template-columns:1fr}
  .xg-footer__grid{grid-template-columns:1fr 1fr;gap:30px}
  .xg-footer{padding-top:52px}
  .xg-topbar__left span:nth-of-type(3){display:none}
  .xg-frame{flex:0 0 280px}
  .xg-vcard__row{grid-template-columns:1fr}
  .xg-hero__float{position:static;width:100%;margin-top:16px}
  .xg-section{padding:56px 0}
}
@media (max-width:560px){
  .xg-topbar__right{gap:12px}
  .xg-logo__text strong{font-size:15.5px}
  .xg-hero h1{font-size:27px}
  .xg-hero__cta{flex-direction:column}
  .xg-btn{width:100%}
  .xg-btn--sm{width:auto}
  .xg-tabs{width:100%}
  .xg-tabs button{flex:1 1 auto}
  .xg-footer__grid{grid-template-columns:1fr}
  .xg-meta{gap:8px 16px}
  .xg-meta li+li::before{display:none}
  .xg-dots{display:none}
  .xg-faq__q{font-size:15px;padding:18px 18px}
  .xg-faq__a p{padding:0 18px 20px}
  .xg-faq__item.is-open .xg-faq__a p{margin-left:18px;padding-left:14px}
}

/* roulang page: article */
:root{
  --xg-bg:#060A18;
  --xg-bg-soft:#0B1128;
  --xg-surface:#0E1430;
  --xg-surface-2:#141C3D;
  --xg-primary:#38BDF8;
  --xg-secondary:#8B7CFF;
  --xg-accent:#FFC24B;
  --xg-text:#E8EDFB;
  --xg-text-2:#A6B0CF;
  --xg-text-3:#6B7794;
  --xg-line:rgba(255,255,255,.08);
  --xg-line-strong:rgba(255,255,255,.16);
  --xg-grad:linear-gradient(135deg,#38BDF8 0%,#8B7CFF 100%);
  --xg-radius-sm:10px;
  --xg-radius:16px;
  --xg-radius-lg:20px;
  --xg-pill:999px;
  --xg-shadow-sm:0 2px 8px rgba(3,6,20,.35);
  --xg-shadow-md:0 12px 32px rgba(3,6,20,.45);
  --xg-shadow-lg:0 24px 60px rgba(3,6,20,.55);
  --xg-glow:0 0 24px rgba(56,189,248,.35);
  --xg-glow-strong:0 0 40px rgba(139,124,255,.45);
  --xg-container:1200px;
  --xg-font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC","Inter",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--xg-bg);
  color:var(--xg-text);
  font-family:var(--xg-font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--xg-text);}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--xg-primary);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(56,189,248,.32);}

/* ---------- 容器 ---------- */
.xg-container{width:100%;max-width:var(--xg-container);margin:0 auto;padding:0 24px;}
.xg-skip{position:absolute;left:-9999px;top:0;background:var(--xg-surface-2);padding:10px 16px;border-radius:0 0 10px 0;z-index:999;}
.xg-skip:focus{left:0;}

/* ---------- 按钮 ---------- */
.xg-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--xg-radius-sm);
  font-size:14.5px;font-weight:600;letter-spacing:.2px;cursor:pointer;
  border:1px solid transparent;background:transparent;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,filter .18s ease-out;
  white-space:nowrap;
}
.xg-btn--primary{background-image:var(--xg-grad);color:#fff;box-shadow:var(--xg-glow);}
.xg-btn--primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 32px rgba(56,189,248,.45);}
.xg-btn--primary:active{transform:translateY(1px);box-shadow:var(--xg-glow);}
.xg-btn--ghost{border-color:rgba(56,189,248,.55);color:var(--xg-primary);}
.xg-btn--ghost:hover{background:rgba(56,189,248,.1);border-color:var(--xg-primary);transform:translateY(-1px);}
.xg-btn--sm{height:36px;padding:0 16px;font-size:13.5px;}
.xg-btn--block{width:100%;}

/* ---------- 顶部导航 ---------- */
.xg-header{
  position:sticky;top:0;z-index:120;
  background:rgba(6,10,24,.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--xg-line);
}
.xg-nav{display:flex;align-items:center;gap:32px;height:68px;}
.xg-logo{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.xg-logo__mark{
  width:30px;height:30px;border-radius:9px;background-image:var(--xg-grad);
  display:inline-flex;align-items:center;justify-content:center;box-shadow:0 0 18px rgba(56,189,248,.35);
}
.xg-logo__mark span{width:11px;height:11px;border-radius:50%;background:#060A18;display:block;}
.xg-logo__text{display:flex;flex-direction:column;line-height:1.15;}
.xg-logo__text strong{font-size:16.5px;letter-spacing:.5px;}
.xg-logo__text em{font-style:normal;font-size:11.5px;color:var(--xg-text-3);letter-spacing:1.6px;}
.xg-menu{display:flex;align-items:center;gap:26px;margin-left:12px;}
.xg-menu a{
  position:relative;padding:9px 0;font-size:14.5px;color:var(--xg-text-2);
  transition:color .18s ease-out;
}
.xg-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background-image:var(--xg-grad);transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;
}
.xg-menu a:hover{color:var(--xg-text);}
.xg-menu a:hover::after{transform:scaleX(.6);}
.xg-menu a.active{color:var(--xg-text);}
.xg-menu a.active::after{transform:scaleX(1);}
.xg-nav__actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.xg-search{position:relative;display:flex;align-items:center;}
.xg-search svg{
  position:absolute;left:11px;width:15px;height:15px;fill:none;stroke:var(--xg-text-3);
  stroke-width:1.8;stroke-linecap:round;pointer-events:none;
}
.xg-search input{
  width:158px;height:38px;padding:0 14px 0 32px;border-radius:var(--xg-pill);
  background:var(--xg-surface);border:1px solid var(--xg-line);color:var(--xg-text);
  font-size:13.5px;outline:none;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.xg-search input::placeholder{color:var(--xg-text-3);}
.xg-search input:focus{border-color:var(--xg-primary);box-shadow:0 0 0 3px rgba(56,189,248,.16);}
.xg-burger{
  display:none;width:42px;height:42px;border:1px solid var(--xg-line);border-radius:12px;
  background:var(--xg-surface);position:relative;cursor:pointer;
}
.xg-burger i,.xg-burger i::before,.xg-burger i::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--xg-text-2);border-radius:2px;
  transform:translateX(-50%);transition:transform .2s ease-out,opacity .2s ease-out;
}
.xg-burger i{top:50%;margin-top:-1px;}
.xg-burger i::before{content:"";top:-6px;left:0;transform:none;}
.xg-burger i::after{content:"";top:6px;left:0;transform:none;}
.xg-burger.is-open i{background:transparent;}
.xg-burger.is-open i::before{transform:rotate(45deg);top:0;}
.xg-burger.is-open i::after{transform:rotate(-45deg);top:0;}

/* ---------- 移动抽屉 ---------- */
.xg-overlay{
  position:fixed;inset:0;background:rgba(3,6,20,.66);backdrop-filter:blur(2px);
  opacity:0;visibility:hidden;transition:opacity .22s ease-out,visibility .22s ease-out;z-index:130;
}
.xg-overlay.is-open{opacity:1;visibility:visible;}
.xg-drawer{
  position:fixed;top:0;right:0;width:308px;max-width:86vw;height:100%;
  background:linear-gradient(180deg,#0E1430,#0A0F24);
  border-left:1px solid var(--xg-line);z-index:140;
  transform:translateX(102%);transition:transform .26s ease-out;
  display:flex;flex-direction:column;padding:22px 22px 32px;overflow-y:auto;
}
.xg-drawer.is-open{transform:translateX(0);}
.xg-drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.xg-drawer__title{font-size:14px;color:var(--xg-text-3);letter-spacing:1.5px;}
.xg-drawer__close{
  width:38px;height:38px;border-radius:11px;background:var(--xg-surface-2);border:1px solid var(--xg-line);
  cursor:pointer;font-size:18px;line-height:1;color:var(--xg-text-2);
}
.xg-drawer__close:hover{color:var(--xg-text);border-color:var(--xg-line-strong);}
.xg-drawer__group{margin-bottom:22px;}
.xg-drawer__group h4{font-size:12.5px;color:var(--xg-text-3);letter-spacing:1.4px;margin-bottom:10px;font-weight:600;}
.xg-drawer__group a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 12px;border-radius:12px;font-size:15px;color:var(--xg-text-2);
  transition:background-color .18s ease-out,color .18s ease-out;
}
.xg-drawer__group a:hover{background:rgba(56,189,248,.08);color:var(--xg-text);}
.xg-drawer__group a.active{background:rgba(56,189,248,.12);color:var(--xg-primary);}
.xg-drawer__group a span{color:var(--xg-text-3);font-size:13px;}

/* ---------- 面包屑 ---------- */
.xg-crumb{padding:22px 0 0;}
.xg-crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;font-size:13px;color:var(--xg-text-3);}
.xg-crumb li::after{content:"/";margin-left:8px;color:rgba(255,255,255,.2);}
.xg-crumb li:last-child::after{content:"";margin:0;}
.xg-crumb a:hover{color:var(--xg-primary);}
.xg-crumb li[aria-current]{color:var(--xg-text-2);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头部 ---------- */
.xg-article-hero{
  position:relative;margin-top:18px;padding:46px 0 34px;border-radius:24px;overflow:hidden;
  background-image:linear-gradient(160deg,rgba(6,10,24,.9),rgba(6,10,24,.97)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border:1px solid var(--xg-line);
}
.xg-article-hero__inner{max-width:900px;}
.xg-badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--xg-pill);
  background:rgba(56,189,248,.13);color:var(--xg-primary);font-size:12.5px;font-weight:600;letter-spacing:.4px;
}
.xg-badge--amber{background:rgba(255,194,75,.12);color:var(--xg-accent);border:1px solid rgba(255,194,75,.35);}
.xg-article-hero h1{
  margin:18px 0 0;font-size:clamp(27px,3.6vw,42px);line-height:1.32;letter-spacing:.3px;
}
.xg-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:20px;
  font-size:13.5px;color:var(--xg-text-3);
}
.xg-meta span{display:inline-flex;align-items:center;gap:7px;}
.xg-meta i{width:5px;height:5px;border-radius:50%;background-image:var(--xg-grad);display:inline-block;}

/* ---------- 布局 ---------- */
.xg-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 306px;gap:48px;
  padding:44px 0 88px;align-items:start;
}
.xg-article{min-width:0;}
.xg-figure{
  margin:0 0 34px;border-radius:var(--xg-radius-lg);overflow:hidden;border:1px solid var(--xg-line);
  box-shadow:var(--xg-shadow-md);background:linear-gradient(140deg,#141C3D,#0A0F24);
}
.xg-figure img{width:100%;aspect-ratio:16/7;object-fit:cover;}
.xg-figure figcaption{padding:12px 18px;font-size:13px;color:var(--xg-text-3);border-top:1px solid var(--xg-line);}

/* ---------- 正文排版 ---------- */
.xg-article__body{max-width:820px;font-size:17.5px;line-height:1.9;color:var(--xg-text-2);}
.xg-article__body > *:first-child{margin-top:0;}
.xg-article__body p{margin:0 0 1.25em;}
.xg-article__body strong{color:var(--xg-text);font-weight:600;}
.xg-article__body a{color:var(--xg-primary);border-bottom:1px solid rgba(56,189,248,.4);transition:border-color .18s ease-out,color .18s ease-out;}
.xg-article__body a:hover{border-color:var(--xg-primary);color:#7DD3FC;}
.xg-article__body h2{
  position:relative;margin:44px 0 18px;padding-left:16px;
  font-size:clamp(21px,2.2vw,28px);color:var(--xg-text);line-height:1.4;
}
.xg-article__body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background-image:var(--xg-grad);
}
.xg-article__body h3{margin:30px 0 12px;font-size:19px;font-weight:600;color:var(--xg-text);}
.xg-article__body h4{margin:24px 0 10px;font-size:17px;font-weight:600;color:var(--xg-text);}
.xg-article__body ul,.xg-article__body ol{margin:0 0 1.3em;padding-left:1.35em;}
.xg-article__body li{margin-bottom:9px;line-height:1.85;}
.xg-article__body li::marker{color:var(--xg-primary);}
.xg-article__body blockquote{
  margin:26px 0;padding:18px 22px;border-radius:0 14px 14px 0;
  background:var(--xg-surface);border-left:3px solid var(--xg-primary);color:var(--xg-text-2);
}
.xg-article__body blockquote p:last-child{margin-bottom:0;}
.xg-article__body img{border-radius:12px;margin:24px 0;border:1px solid var(--xg-line);}
.xg-article__body figure{margin:26px 0;}
.xg-article__body figcaption{margin-top:10px;font-size:13px;color:var(--xg-text-3);text-align:center;}
.xg-article__body hr{margin:36px 0;border:0;border-top:1px solid var(--xg-line);}
.xg-table-wrap{margin:26px 0;overflow-x:auto;border:1px solid var(--xg-line);border-radius:14px;background:var(--xg-surface);}
.xg-table-wrap table{width:100%;border-collapse:collapse;min-width:520px;font-size:15px;}
.xg-table-wrap th{background:var(--xg-surface-2);color:var(--xg-text);font-weight:600;text-align:left;padding:12px 16px;}
.xg-table-wrap td{padding:12px 16px;border-top:1px solid var(--xg-line);color:var(--xg-text-2);}
.xg-article__body code{
  background:var(--xg-surface-2);border:1px solid var(--xg-line);border-radius:6px;
  padding:2px 6px;font-size:14.5px;color:#9BE5FF;
}

/* ---------- 标签 / 继续浏览 ---------- */
.xg-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:42px;padding-top:26px;border-top:1px solid var(--xg-line);}
.xg-tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--xg-pill);
  background:rgba(139,124,255,.12);color:#BDB4FF;font-size:13px;border:1px solid rgba(139,124,255,.28);
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.xg-tag:hover{background:rgba(139,124,255,.2);color:#DCD6FF;border-color:rgba(139,124,255,.5);}
.xg-continue{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:26px;}
.xg-continue a{
  display:flex;flex-direction:column;gap:6px;padding:18px 20px;border-radius:var(--xg-radius);
  background:var(--xg-surface);border:1px solid var(--xg-line);
  transition:border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.xg-continue a:hover{border-color:rgba(56,189,248,.45);transform:translateY(-2px);box-shadow:var(--xg-shadow-md);}
.xg-continue small{font-size:12.5px;color:var(--xg-text-3);letter-spacing:1px;}
.xg-continue b{font-size:15.5px;font-weight:600;color:var(--xg-text);}

/* ---------- 侧栏 ---------- */
.xg-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.xg-card{
  background:var(--xg-surface);border:1px solid var(--xg-line);border-radius:var(--xg-radius);
  padding:20px;box-shadow:var(--xg-shadow-sm);
}
.xg-card__title{
  display:flex;align-items:center;justify-content:space-between;
  font-size:14px;font-weight:600;color:var(--xg-text);letter-spacing:.6px;margin-bottom:14px;
}
.xg-card__title span{font-size:12px;color:var(--xg-text-3);font-weight:500;}
.xg-toc{list-style:none;max-height:340px;overflow-y:auto;}
.xg-toc li{margin-bottom:4px;}
.xg-toc a{
  display:block;padding:8px 10px;border-radius:9px;font-size:14px;color:var(--xg-text-2);
  border-left:2px solid transparent;transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.xg-toc a:hover{background:rgba(56,189,248,.08);color:var(--xg-text);}
.xg-toc a.is-active{background:rgba(56,189,248,.1);color:var(--xg-primary);border-left-color:var(--xg-primary);}
.xg-side__links{list-style:none;display:flex;flex-direction:column;}
.xg-side__links li{border-bottom:1px solid var(--xg-line);}
.xg-side__links li:last-child{border-bottom:0;}
.xg-side__links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14px;color:var(--xg-text-2);transition:color .18s ease-out,padding-left .18s ease-out;
}
.xg-side__links a::after{content:"›";color:var(--xg-text-3);}
.xg-side__links a:hover{color:var(--xg-primary);padding-left:4px;}

/* ---------- 推荐区 ---------- */
.xg-section{padding:0 0 84px;}
.xg-section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.xg-section__head h2{font-size:clamp(22px,2.4vw,30px);}
.xg-section__head p{margin:8px 0 0;font-size:15px;color:var(--xg-text-3);}
.xg-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.xg-post{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--xg-radius);
  background:var(--xg-surface);border:1px solid var(--xg-line);box-shadow:var(--xg-shadow-sm);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.xg-post:hover{transform:translateY(-3px);border-color:rgba(56,189,248,.45);box-shadow:var(--xg-shadow-md);}
.xg-post__cover{position:relative;overflow:hidden;background:linear-gradient(140deg,#141C3D,#0A0F24);}
.xg-post__cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease-out;}
.xg-post:hover .xg-post__cover img{transform:scale(1.04);}
.xg-post__body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.xg-post__body h3{font-size:16.5px;font-weight:600;line-height:1.5;}
.xg-post__body p{margin:0;font-size:14px;color:var(--xg-text-3);}
.xg-post__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--xg-text-3);}

/* ---------- 反底核对区 ---------- */
.xg-invert{
  background:#F2F5FC;color:#101A38;border-radius:26px;
  padding:56px 44px;margin-bottom:84px;
  box-shadow:var(--xg-shadow-lg);
}
.xg-invert h2{color:#101A38;font-size:clamp(22px,2.4vw,30px);}
.xg-invert .xg-invert__sub{margin:12px 0 32px;font-size:15.5px;color:#4A5878;max-width:760px;}
.xg-invert__grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.xg-invert__item{
  background:rgba(255,255,255,.72);border:1px solid #D5DEF2;border-radius:16px;padding:20px;
}
.xg-invert__item i{
  display:block;width:10px;height:10px;border-radius:50%;background-image:var(--xg-grad);margin-bottom:12px;
  box-shadow:0 0 0 4px rgba(56,189,248,.16);
}
.xg-invert__item h3{font-size:16px;color:#101A38;margin-bottom:6px;}
.xg-invert__item p{margin:0;font-size:14px;line-height:1.7;color:#5A6789;}

/* ---------- CTA ---------- */
.xg-cta{
  position:relative;overflow:hidden;border-radius:24px;margin-bottom:88px;
  padding:46px 44px;border:1px solid var(--xg-line);
  background-image:radial-gradient(circle at 12% 20%,rgba(56,189,248,.18),transparent 42%),
                   radial-gradient(circle at 82% 78%,rgba(139,124,255,.2),transparent 46%),
                   linear-gradient(140deg,#101838,#0A0F24);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.xg-cta h2{font-size:clamp(21px,2.3vw,28px);margin-bottom:10px;}
.xg-cta p{margin:0;font-size:15.5px;color:var(--xg-text-2);max-width:640px;}
.xg-cta__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 空态 ---------- */
.xg-empty{
  max-width:620px;margin:20px auto 0;padding:44px 32px;text-align:center;
  background:var(--xg-surface);border:1px dashed var(--xg-line-strong);border-radius:var(--xg-radius-lg);
}
.xg-empty__icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:50%;
  border:1px solid rgba(56,189,248,.4);display:flex;align-items:center;justify-content:center;
  color:var(--xg-primary);font-size:22px;
}
.xg-empty h3{font-size:19px;margin-bottom:10px;}
.xg-empty p{color:var(--xg-text-3);font-size:15px;}

/* ---------- 页脚 ---------- */
.xg-footer{
  border-top:1px solid var(--xg-line);
  background:linear-gradient(180deg,#080D1E,#060A18);
  padding:64px 0 28px;position:relative;
}
.xg-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background-image:linear-gradient(90deg,transparent,rgba(56,189,248,.5),transparent);
}
.xg-footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:32px;}
.xg-footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.xg-footer__brand strong{font-size:16.5px;}
.xg-footer__desc{font-size:13.5px;color:var(--xg-text-3);line-height:1.8;max-width:340px;}
.xg-footer__col h4{font-size:14px;margin-bottom:16px;color:var(--xg-text);}
.xg-footer__links{display:flex;flex-direction:column;gap:10px;}
.xg-footer__links a{font-size:13.5px;color:var(--xg-text-3);transition:color .18s ease-out;}
.xg-footer__links a:hover{color:var(--xg-primary);}
.xg-footer__col:first-child .xg-footer__links{flex-direction:row;gap:18px;margin-top:16px;}
.xg-footer__qr{display:flex;align-items:center;gap:12px;}
.xg-qr{
  width:84px;height:84px;border-radius:12px;border:1px solid var(--xg-line);
  background-image:linear-gradient(135deg,rgba(56,189,248,.28),rgba(139,124,255,.28)),
    repeating-linear-gradient(45deg,rgba(255,255,255,.06) 0 6px,transparent 6px 12px);
  background-color:var(--xg-surface);
}
.xg-footer__qr small{font-size:12.5px;color:var(--xg-text-3);line-height:1.6;}
.xg-footer__bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--xg-line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--xg-text-3);
}
.xg-totop{
  position:fixed;right:24px;bottom:26px;width:46px;height:46px;border-radius:14px;
  background:var(--xg-surface-2);border:1px solid var(--xg-line-strong);color:var(--xg-text-2);
  display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:110;
  opacity:0;visibility:hidden;transition:opacity .22s ease-out,visibility .22s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.xg-totop.is-visible{opacity:1;visibility:visible;}
.xg-totop:hover{transform:translateY(-2px);border-color:var(--xg-primary);color:var(--xg-primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .xg-layout{grid-template-columns:minmax(0,1fr) 268px;gap:36px;}
  .xg-grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .xg-invert__grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .xg-footer__grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:36px;}
}
@media (max-width:992px){
  .xg-menu,.xg-search{display:none;}
  .xg-burger{display:block;}
  .xg-nav{gap:18px;}
  .xg-layout{grid-template-columns:minmax(0,1fr);gap:32px;padding-bottom:64px;}
  .xg-side{position:static;}
  .xg-article-hero{padding:36px 26px 28px;}
  .xg-invert{padding:40px 24px;}
  .xg-cta{padding:34px 26px;}
}
@media (max-width:768px){
  .xg-container{padding:0 20px;}
  .xg-grid-3{grid-template-columns:minmax(0,1fr);}
  .xg-continue{grid-template-columns:minmax(0,1fr);}
  .xg-article__body{font-size:16.5px;line-height:1.85;}
  .xg-article__body h2{margin-top:34px;}
  .xg-footer__grid{grid-template-columns:1fr 1fr;gap:28px;}
  .xg-footer__col:first-child{grid-column:1 / -1;}
  .xg-section{padding-bottom:60px;}
  .xg-invert{margin-bottom:60px;}
  .xg-cta{margin-bottom:60px;}
}
@media (max-width:560px){
  .xg-nav__actions .xg-btn--sm{display:none;}
  .xg-logo__text em{letter-spacing:1px;}
  .xg-invert__grid{grid-template-columns:minmax(0,1fr);}
  .xg-footer__grid{grid-template-columns:minmax(0,1fr);}
  .xg-cta__actions .xg-btn{width:100%;}
  .xg-crumb li[aria-current]{max-width:32ch;}
  .xg-footer__bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --xg-bg:#060A18;
  --xg-surface:#0E1430;
  --xg-elevated:#141C3D;
  --xg-primary:#38BDF8;
  --xg-secondary:#8B7CFF;
  --xg-accent:#FFC24B;
  --xg-text:#E8EDFB;
  --xg-text-2:#A6B0CF;
  --xg-text-3:#6B7794;
  --xg-border:rgba(255,255,255,.08);
  --xg-border-strong:rgba(255,255,255,.16);
  --xg-light:#F2F5FC;
  --xg-light-card:#FFFFFF;
  --xg-ink:#101A38;
  --xg-ink-2:#4A5678;
  --xg-ink-line:#D7DFF2;
  --xg-grad:linear-gradient(135deg,#38BDF8 0%,#8B7CFF 100%);
  --xg-r-sm:10px;
  --xg-r-md:16px;
  --xg-r-lg:20px;
  --xg-r-pill:999px;
  --xg-shadow-sm:0 2px 8px rgba(3,6,20,.35);
  --xg-shadow-md:0 12px 32px rgba(3,6,20,.45);
  --xg-shadow-lg:0 24px 60px rgba(3,6,20,.55);
  --xg-glow:0 0 24px rgba(56,189,248,.35);
  --xg-glow-2:0 0 40px rgba(139,124,255,.45);
  --xg-container:1200px;
  --xg-header-h:68px;
  --xg-font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}

/* ============ Reset & Base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--xg-bg);
  color:var(--xg-text);
  font-family:var(--xg-font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.xg-lock{overflow:hidden;}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--xg-primary);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:#7DD3FC;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
:focus-visible{outline:2px solid var(--xg-primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(56,189,248,.35);color:#fff;}

/* ============ 容器与板块 ============ */
.xg-container{width:100%;max-width:var(--xg-container);margin:0 auto;padding:0 24px;}
.xg-section{padding:88px 0;position:relative;}
.xg-section--tight{padding:64px 0;}
.xg-section__head{max-width:760px;margin-bottom:40px;}
.xg-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--xg-primary);
  padding:6px 14px;border-radius:var(--xg-r-pill);
  background:rgba(56,189,248,.10);
  border:1px solid rgba(56,189,248,.22);
  margin-bottom:16px;
}
.xg-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--xg-primary);box-shadow:var(--xg-glow);}
.xg-h2{font-size:clamp(24px,2.6vw,34px);line-height:1.35;font-weight:700;letter-spacing:-.01em;}
.xg-h3{font-size:19px;font-weight:600;line-height:1.5;}
.xg-lead{color:var(--xg-text-2);font-size:16.5px;margin-top:14px;max-width:780px;}
.xg-muted{color:var(--xg-text-3);font-size:13px;}

/* ============ 顶部导航 ============ */
.xg-header{
  position:sticky;top:0;z-index:200;
  background:rgba(6,10,24,.72);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.xg-header.is-stuck{
  background:rgba(8,13,30,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--xg-border);
  box-shadow:0 10px 30px rgba(3,6,20,.45);
}
.xg-nav{
  display:flex;align-items:center;gap:28px;
  height:var(--xg-header-h);
}
.xg-logo{display:flex;align-items:center;gap:12px;color:var(--xg-text);flex:0 0 auto;}
.xg-logo:hover{color:var(--xg-text);}
.xg-logo__mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--xg-grad);
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--xg-glow);
  position:relative;flex:0 0 auto;
}
.xg-logo__mark span{
  width:12px;height:12px;border-radius:3px;
  background:#060A18;display:block;transform:rotate(45deg);
}
.xg-logo__text{display:flex;flex-direction:column;line-height:1.15;}
.xg-logo__text strong{font-size:17px;font-weight:700;letter-spacing:.02em;}
.xg-logo__text em{font-style:normal;font-size:11px;color:var(--xg-text-3);letter-spacing:.14em;}
.xg-menu{display:flex;align-items:center;gap:6px;margin-left:8px;}
.xg-menu a{
  position:relative;
  display:inline-block;
  padding:8px 14px;
  font-size:15px;
  color:var(--xg-text-2);
  border-radius:var(--xg-r-sm);
  transition:color .18s ease,background .18s ease;
}
.xg-menu a:hover{color:var(--xg-text);background:rgba(255,255,255,.04);}
.xg-menu a.active{color:#fff;font-weight:600;}
.xg-menu a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--xg-grad);
  box-shadow:var(--xg-glow);
}
.xg-nav__actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.xg-search{
  display:flex;align-items:center;gap:8px;
  height:38px;padding:0 14px;
  border-radius:var(--xg-r-pill);
  background:rgba(255,255,255,.05);
  border:1px solid var(--xg-border);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.xg-search:focus-within{border-color:var(--xg-primary);box-shadow:0 0 0 3px rgba(56,189,248,.14);}
.xg-search svg{width:16px;height:16px;fill:none;stroke:var(--xg-text-3);stroke-width:1.8;stroke-linecap:round;}
.xg-search input{
  width:150px;border:none;background:transparent;color:var(--xg-text);
  font-size:14px;outline:none;
}
.xg-search input::placeholder{color:var(--xg-text-3);}
.xg-burger{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--xg-border);background:rgba(255,255,255,.04);
  position:relative;
}
.xg-burger i,.xg-burger i::before,.xg-burger i::after{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--xg-text);
  position:absolute;left:50%;transform:translateX(-50%);
  transition:transform .22s ease,opacity .22s ease;
}
.xg-burger i{top:50%;margin-top:-1px;}
.xg-burger i::before{content:"";top:-6px;left:0;transform:none;}
.xg-burger i::after{content:"";top:6px;left:0;transform:none;}
.xg-burger[aria-expanded="true"] i{background:transparent;}
.xg-burger[aria-expanded="true"] i::before{transform:translateY(6px) rotate(45deg);}
.xg-burger[aria-expanded="true"] i::after{transform:translateY(-6px) rotate(-45deg);}

/* ============ 按钮 ============ */
.xg-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:var(--xg-r-sm);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  white-space:nowrap;
}
.xg-btn--primary{
  background:var(--xg-grad);color:#fff;
  box-shadow:var(--xg-glow);
}
.xg-btn--primary:hover{color:#fff;transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 32px rgba(56,189,248,.45);}
.xg-btn--primary:active{transform:translateY(1px);box-shadow:0 0 14px rgba(56,189,248,.3);}
.xg-btn--outline{
  background:transparent;color:var(--xg-primary);border-color:rgba(56,189,248,.5);
}
.xg-btn--outline:hover{color:#7DD3FC;border-color:var(--xg-primary);box-shadow:0 0 18px rgba(56,189,248,.2);transform:translateY(-1px);}
.xg-btn--ghost{background:transparent;color:var(--xg-text-2);padding:0 6px;height:auto;}
.xg-btn--ghost:hover{color:var(--xg-primary);}
.xg-btn--sm{height:40px;padding:0 20px;font-size:14px;}
.xg-btn--block{width:100%;}
.xg-btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;}

/* ============ 标签 / 徽章 ============ */
.xg-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--xg-r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(56,189,248,.12);color:#7DD3FC;
  border:1px solid rgba(56,189,248,.24);
}
.xg-badge--amber{background:rgba(255,194,75,.10);color:var(--xg-accent);border-color:rgba(255,194,75,.35);}
.xg-badge--violet{background:rgba(139,124,255,.14);color:#B9B1FF;border-color:rgba(139,124,255,.32);}

/* ============ 面包屑 ============ */
.xg-crumb{padding-top:28px;}
.xg-crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--xg-text-3);}
.xg-crumb li{display:flex;align-items:center;gap:8px;}
.xg-crumb li+li::before{content:"/";color:var(--xg-text-3);opacity:.6;}
.xg-crumb a{color:var(--xg-text-2);}
.xg-crumb a:hover{color:var(--xg-primary);}
.xg-crumb [aria-current="page"]{color:var(--xg-text);}

/* ============ 首屏 ============ */
.xg-hero{
  position:relative;
  padding:56px 0 96px;
  background-image:linear-gradient(180deg,rgba(6,10,24,.78) 0%,rgba(6,10,24,.92) 62%,var(--xg-bg) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.xg-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(circle at 12% 18%,rgba(56,189,248,.12) 0,transparent 42%),
    radial-gradient(circle at 86% 12%,rgba(139,124,255,.14) 0,transparent 46%);
}
.xg-hero__grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:56px;align-items:center;
}
.xg-hero h1{
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.2;font-weight:700;letter-spacing:-.02em;
  margin:16px 0 0;
}
.xg-hero h1 span{
  background:var(--xg-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.xg-hero__sub{color:var(--xg-text-2);font-size:17px;margin-top:20px;max-width:600px;}
.xg-hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.xg-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  margin-top:28px;font-size:13px;color:var(--xg-text-3);
  font-variant-numeric:tabular-nums;
}
.xg-meta span{display:inline-flex;align-items:center;gap:8px;}
.xg-meta span+span::before{content:"";width:1px;height:12px;background:var(--xg-border-strong);display:inline-block;margin-right:10px;}

.xg-hero__card{
  position:relative;
  border-radius:var(--xg-r-lg);
  padding:18px;
  background:rgba(20,28,61,.55);
  border:1px solid var(--xg-border-strong);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--xg-shadow-lg);
}
.xg-hero__card::before{
  content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;
  background:linear-gradient(135deg,rgba(56,189,248,.6),rgba(139,124,255,.5));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  pointer-events:none;
}
.xg-hero__shot{border-radius:14px;overflow:hidden;aspect-ratio:16/10;background:linear-gradient(135deg,#0E1430,#1B2350);}
.xg-hero__shot img{width:100%;height:100%;object-fit:cover;}
.xg-hero__cardrow{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:16px;padding:12px 14px;border-radius:14px;
  background:rgba(255,255,255,.04);border:1px solid var(--xg-border);
}
.xg-hero__cardrow strong{font-size:15px;}
.xg-hero__cardrow small{display:block;color:var(--xg-text-3);font-size:12px;}

/* ============ 下载区 ============ */
.xg-download{
  background:var(--xg-surface);
  border:1px solid var(--xg-border);
  border-radius:var(--xg-r-lg);
  padding:36px;
  box-shadow:var(--xg-shadow-md);
  position:relative;
  overflow:hidden;
}
.xg-download::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
}
.xg-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.xg-tab{
  height:40px;padding:0 20px;border-radius:var(--xg-r-pill);
  font-size:14px;font-weight:600;color:var(--xg-text-2);
  background:rgba(255,255,255,.04);border:1px solid var(--xg-border);
  transition:all .18s ease-out;
}
.xg-tab:hover{color:var(--xg-text);border-color:var(--xg-border-strong);}
.xg-tab.is-active{
  color:#fff;background:rgba(56,189,248,.14);
  border-color:rgba(56,189,248,.5);box-shadow:0 0 18px rgba(56,189,248,.2);
}
.xg-download__grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:36px;align-items:center;}
.xg-download__info h3{font-size:20px;font-weight:700;margin-bottom:8px;}
.xg-download__info p{color:var(--xg-text-2);font-size:15px;max-width:520px;}
.xg-download__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;}
.xg-checksum{
  margin-top:22px;padding:14px 16px;border-radius:12px;
  background:rgba(255,255,255,.03);border:1px dashed var(--xg-border-strong);
  font-size:12.5px;color:var(--xg-text-3);
  word-break:break-all;line-height:1.7;
}
.xg-checksum b{color:var(--xg-text-2);font-weight:600;}
.xg-qr-box{display:flex;align-items:center;gap:18px;justify-content:flex-start;}
.xg-qr{
  width:132px;height:132px;border-radius:14px;flex:0 0 auto;
  background:
    linear-gradient(90deg,#0B1230 50%,transparent 0) 0 0/16px 16px repeat,
    linear-gradient(#0B1230 50%,transparent 0) 0 0/16px 16px repeat,
    #E8EDFB;
  border:6px solid #E8EDFB;
  box-shadow:var(--xg-shadow-sm);
}

/* ============ 锚点目录 + 长文 ============ */
.xg-doc{display:grid;grid-template-columns:262px minmax(0,1fr);gap:56px;align-items:start;}
.xg-toc{
  position:sticky;top:calc(var(--xg-header-h) + 24px);
  border-radius:var(--xg-r-md);
  border:1px solid var(--xg-border);
  background:var(--xg-surface);
  padding:22px 20px;
  box-shadow:var(--xg-shadow-sm);
}
.xg-toc h3{font-size:13px;letter-spacing:.14em;color:var(--xg-text-3);font-weight:600;margin-bottom:14px;}
.xg-toc ol{display:flex;flex-direction:column;gap:2px;counter-reset:toc;}
.xg-toc a{
  display:flex;gap:10px;align-items:flex-start;
  padding:9px 10px;border-radius:8px;
  font-size:14px;color:var(--xg-text-2);line-height:1.5;
  border-left:2px solid transparent;
  transition:all .18s ease-out;
}
.xg-toc a:hover{background:rgba(255,255,255,.05);color:var(--xg-text);border-left-color:rgba(56,189,248,.5);}
.xg-toc a.is-current{color:#fff;background:rgba(56,189,248,.10);border-left-color:var(--xg-primary);}
.xg-toc a i{font-style:normal;font-size:12px;color:var(--xg-text-3);font-variant-numeric:tabular-nums;padding-top:2px;}
.xg-doc__body{max-width:800px;}
.xg-doc__item{padding-bottom:36px;margin-bottom:36px;border-bottom:1px solid var(--xg-border);scroll-margin-top:calc(var(--xg-header-h) + 28px);}
.xg-doc__item:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0;}
.xg-doc__item h2{
  display:flex;gap:14px;align-items:baseline;
  font-size:clamp(21px,2.1vw,27px);font-weight:700;line-height:1.4;
  margin-bottom:16px;
}
.xg-doc__num{
  font-family:"Space Grotesk",Inter,var(--xg-font);
  font-size:14px;font-weight:700;letter-spacing:.06em;
  color:transparent;background:var(--xg-grad);-webkit-background-clip:text;background-clip:text;
  padding-top:4px;flex:0 0 auto;
}
.xg-doc__item p{color:var(--xg-text-2);margin-bottom:16px;}
.xg-doc__item p:last-child{margin-bottom:0;}
.xg-doc__item figure{margin:24px 0;border-radius:var(--xg-r-md);overflow:hidden;border:1px solid var(--xg-border);}
.xg-doc__item figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.xg-doc__item figcaption{font-size:12.5px;color:var(--xg-text-3);padding:10px 14px;background:rgba(255,255,255,.03);}
.xg-checklist{display:grid;gap:10px;margin:18px 0 0;}
.xg-checklist li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 16px;border-radius:12px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--xg-border);
  font-size:15px;color:var(--xg-text-2);
  transition:border-color .18s ease,background .18s ease;
}
.xg-checklist li:hover{border-color:rgba(56,189,248,.35);background:rgba(56,189,248,.05);}
.xg-dot{
  width:18px;height:18px;border-radius:50%;flex:0 0 auto;margin-top:5px;
  background:rgba(56,189,248,.16);border:1px solid rgba(56,189,248,.5);
  position:relative;
}
.xg-dot::after{content:"";position:absolute;inset:5px;border-radius:50%;background:var(--xg-primary);box-shadow:var(--xg-glow);}

/* ============ 冷白反底 ============ */
.xg-band--light{
  position:relative;
  background:var(--xg-light);
  color:var(--xg-ink);
}
.xg-band--light::before{
  content:"";position:absolute;left:0;right:0;top:-24px;height:24px;
  background:linear-gradient(to bottom,rgba(242,245,252,0),var(--xg-light));
}
.xg-band--light::after{
  content:"";position:absolute;left:0;right:0;bottom:-24px;height:24px;
  background:linear-gradient(to top,rgba(242,245,252,0),var(--xg-light));
}
.xg-band--light .xg-h2{color:var(--xg-ink);}
.xg-band--light .xg-lead{color:var(--xg-ink-2);}
.xg-band--light .xg-eyebrow{background:rgba(56,189,248,.14);color:#0C6E9E;border-color:rgba(56,189,248,.4);}

.xg-req-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.xg-req-card{
  background:rgba(255,255,255,.72);
  border:1px solid var(--xg-ink-line);
  border-radius:var(--xg-r-md);
  padding:28px;
  box-shadow:0 8px 26px rgba(16,26,56,.07);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.xg-req-card:hover{transform:translateY(-2px);box-shadow:0 16px 38px rgba(16,26,56,.12);border-color:#9FD5F0;}
.xg-req-card h3{font-size:18px;font-weight:700;color:var(--xg-ink);margin-bottom:6px;}
.xg-req-card > small{display:inline-block;font-size:12.5px;color:#7286A8;margin-bottom:16px;}
.xg-req-card ul{display:grid;gap:10px;}
.xg-req-card li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:#2C3A5C;padding-bottom:10px;
  border-bottom:1px solid rgba(16,26,56,.07);
}
.xg-req-card li:last-child{border-bottom:none;padding-bottom:0;}
.xg-req-card li::before{
  content:"";width:14px;height:14px;border-radius:50%;flex:0 0 auto;margin-top:5px;
  background:radial-gradient(circle,#38BDF8 0 40%,transparent 42%);
  border:1px solid rgba(56,189,248,.7);
}

/* ============ 步骤流 ============ */
.xg-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;counter-reset:step;}
.xg-step{
  position:relative;
  background:var(--xg-elevated);
  border:1px solid var(--xg-border);
  border-radius:var(--xg-r-md);
  padding:26px 22px;
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.xg-step::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);
}
.xg-step:hover{transform:translateY(-2px);border-color:rgba(56,189,248,.4);box-shadow:var(--xg-shadow-md);}
.xg-step__num{
  width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;color:#fff;background:var(--xg-grad);
  box-shadow:var(--xg-glow);margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.xg-step h3{font-size:16.5px;font-weight:600;margin-bottom:8px;}
.xg-step p{font-size:14px;color:var(--xg-text-2);}

/* ============ 场景卡 ============ */
.xg-scene{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.xg-scene__card{
  display:grid;grid-template-columns:132px minmax(0,1fr);gap:20px;
  background:var(--xg-surface);
  border:1px solid var(--xg-border);
  border-radius:var(--xg-r-md);
  padding:20px;
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.xg-scene__card:hover{transform:translateY(-2px);border-color:rgba(139,124,255,.45);box-shadow:var(--xg-shadow-md);}
.xg-scene__card img{width:100%;height:100%;min-height:112px;object-fit:cover;border-radius:12px;background:linear-gradient(135deg,#0E1430,#1B2350);}
.xg-scene__card h3{font-size:16.5px;font-weight:600;margin-bottom:8px;}
.xg-scene__card p{font-size:14px;color:var(--xg-text-2);}

/* ============ FAQ ============ */
.xg-faq{display:grid;gap:12px;max-width:920px;}
.xg-faq__item{
  background:rgba(255,255,255,.72);
  border:1px solid var(--xg-ink-line);
  border-radius:var(--xg-r-md);
  overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.xg-faq__item[open]{border-color:#9FD5F0;box-shadow:0 10px 28px rgba(16,26,56,.10);}
.xg-faq__item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--xg-ink);
  min-height:44px;position:relative;
}
.xg-faq__item summary::-webkit-details-marker{display:none;}
.xg-faq__item summary::after{
  content:"";flex:0 0 auto;width:16px;height:16px;border-radius:4px;
  background:
    linear-gradient(#2C3A5C,#2C3A5C) center/16px 2px no-repeat,
    linear-gradient(#2C3A5C,#2C3A5C) center/2px 16px no-repeat;
  transition:transform .2s ease;
}
.xg-faq__item[open] summary::after{transform:rotate(135deg);}
.xg-faq__item[open] summary{color:#0C6E9E;}
.xg-faq__item[open] summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--xg-grad);
}
.xg-faq__body{padding:0 24px 22px 24px;color:#3A4666;font-size:15px;line-height:1.85;background:rgba(56,189,248,.05);}
.xg-faq__body p{padding-top:16px;margin:0;}

/* ============ CTA 带 ============ */
.xg-cta{
  position:relative;overflow:hidden;
  border-radius:var(--xg-r-lg);
  border:1px solid var(--xg-border-strong);
  background:
    radial-gradient(circle at 18% 30%,rgba(56,189,248,.20) 0,transparent 45%),
    radial-gradient(circle at 82% 70%,rgba(139,124,255,.22) 0,transparent 48%),
    var(--xg-surface);
  padding:48px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--xg-shadow-md);
}
.xg-cta::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:34px 34px;
  mask-image:linear-gradient(90deg,#000,transparent 80%);
  -webkit-mask-image:linear-gradient(90deg,#000,transparent 80%);
}
.xg-cta__text{position:relative;z-index:2;max-width:640px;}
.xg-cta__text h2{font-size:clamp(21px,2.3vw,28px);font-weight:700;margin-bottom:10px;}
.xg-cta__text p{color:var(--xg-text-2);font-size:15px;}
.xg-cta__actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.xg-footer{
  margin-top:24px;
  padding:72px 0 28px;
  background:#080D1E;
  border-top:1px solid var(--xg-border);
  position:relative;
}
.xg-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(56,189,248,.5),rgba(139,124,255,.5),transparent);
}
.xg-footer__grid{
  display:grid;
  grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,.8fr)) minmax(0,1fr);
  gap:40px;
}
.xg-footer__brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.xg-footer__brand strong{font-size:17px;font-weight:700;}
.xg-footer__desc{font-size:13.5px;color:var(--xg-text-3);line-height:1.85;max-width:340px;}
.xg-footer__col h4{font-size:14px;font-weight:700;color:var(--xg-text);margin-bottom:16px;}
.xg-footer__links{display:flex;flex-direction:column;gap:10px;margin-top:18px;}
.xg-footer__links a{font-size:13px;color:var(--xg-text-3);}
.xg-footer__links a:hover{color:var(--xg-primary);}
.xg-footer__qr{display:flex;align-items:flex-start;gap:14px;}
.xg-footer__qr .xg-qr{width:96px;height:96px;border-radius:12px;border-width:5px;}
.xg-footer__qr small{font-size:12px;color:var(--xg-text-3);line-height:1.7;}
.xg-footer__bottom{
  margin-top:56px;padding-top:22px;
  border-top:1px solid var(--xg-border);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.5px;color:var(--xg-text-3);
}

/* ============ 返回顶部 ============ */
.xg-top-btn{
  position:fixed;right:24px;bottom:26px;z-index:150;
  width:46px;height:46px;border-radius:14px;
  background:var(--xg-elevated);border:1px solid var(--xg-border-strong);
  color:var(--xg-text);display:flex;align-items:center;justify-content:center;
  box-shadow:var(--xg-shadow-md);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .22s ease-out;
}
.xg-top-btn.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.xg-top-btn:hover{border-color:var(--xg-primary);box-shadow:var(--xg-glow);}
.xg-top-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ============ 响应式 ============ */
@media (max-width:1320px){
  .xg-container{max-width:1140px;}
}
@media (max-width:1200px){
  .xg-doc{grid-template-columns:228px minmax(0,1fr);gap:36px;}
  .xg-steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .xg-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;}
  .xg-footer__desc{max-width:none;}
}
@media (max-width:992px){
  .xg-section{padding:64px 0;}
  .xg-hero{padding:40px 0 72px;}
  .xg-hero__grid{grid-template-columns:minmax(0,1fr);gap:40px;}
  .xg-download__grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .xg-doc{grid-template-columns:minmax(0,1fr);gap:28px;}
  .xg-toc{position:static;}
  .xg-toc ol{flex-direction:row;flex-wrap:wrap;gap:8px;}
  .xg-toc a{background:rgba(255,255,255,.04);border-left:none;border:1px solid var(--xg-border);}
  .xg-scene{grid-template-columns:minmax(0,1fr);}
  .xg-req-grid{grid-template-columns:minmax(0,1fr);}
  .xg-search{display:none;}
  .xg-burger{display:block;}
  .xg-menu{
    position:fixed;top:0;right:0;bottom:0;z-index:260;
    width:min(300px,84vw);
    flex-direction:column;align-items:stretch;gap:4px;
    padding:88px 22px 32px;
    background:rgba(10,16,36,.96);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-left:1px solid var(--xg-border);
    box-shadow:var(--xg-shadow-lg);
    transform:translateX(105%);
    transition:transform .28s cubic-bezier(.4,0,.2,1);
    margin-left:0;
    overflow-y:auto;
  }
  .xg-menu.is-open{transform:translateX(0);}
  .xg-menu a{padding:14px 16px;font-size:16px;border-radius:12px;}
  .xg-menu a.active{background:rgba(56,189,248,.12);}
  .xg-menu a.active::after{left:0;right:auto;top:12px;bottom:12px;width:2px;height:auto;}
  body.xg-lock::after{
    content:"";position:fixed;inset:0;z-index:240;background:rgba(3,6,20,.62);
  }
}
@media (max-width:768px){
  .xg-container{padding:0 20px;}
  .xg-section{padding:56px 0;}
  .xg-hero h1{font-size:clamp(27px,7.4vw,36px);}
  .xg-hero__sub{font-size:15.5px;}
  .xg-download{padding:24px;}
  .xg-steps{grid-template-columns:minmax(0,1fr);}
  .xg-scene__card{grid-template-columns:minmax(0,1fr);}
  .xg-scene__card img{aspect-ratio:16/9;min-height:0;}
  .xg-cta{padding:32px 24px;}
  .xg-footer{padding:56px 0 24px;}
  .xg-footer__grid{grid-template-columns:minmax(0,1fr);gap:30px;}
  .xg-meta span+span::before{display:none;}
}
@media (max-width:560px){
  .xg-hero__cta{flex-direction:column;align-items:stretch;}
  .xg-hero__cta .xg-btn{width:100%;}
  .xg-download__actions{flex-direction:column;align-items:stretch;}
  .xg-download__actions .xg-btn{width:100%;}
  .xg-qr-box{flex-direction:column;align-items:flex-start;}
  .xg-cta{flex-direction:column;align-items:stretch;}
  .xg-cta__actions{flex-direction:column;}
  .xg-cta__actions .xg-btn{width:100%;}
  .xg-footer__bottom{flex-direction:column;}
  .xg-doc__item h2{font-size:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category2 */
:root{
  --xg-bg:#060A18;
  --xg-surface:#0E1430;
  --xg-surface-2:#141C3D;
  --xg-primary:#38BDF8;
  --xg-accent:#8B7CFF;
  --xg-warm:#FFC24B;
  --xg-text:#E8EDFB;
  --xg-text-2:#A6B0CF;
  --xg-text-3:#6B7794;
  --xg-line:rgba(255,255,255,.08);
  --xg-line-strong:rgba(255,255,255,.16);
  --xg-radius:16px;
  --xg-radius-lg:20px;
  --xg-radius-sm:10px;
  --xg-container:1200px;
  --xg-shadow-sm:0 2px 8px rgba(3,6,20,.35);
  --xg-shadow-md:0 12px 32px rgba(3,6,20,.45);
  --xg-shadow-lg:0 24px 60px rgba(3,6,20,.55);
  --xg-glow-1:0 0 24px rgba(56,189,248,.35);
  --xg-glow-2:0 0 40px rgba(139,124,255,.45);
  --xg-font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --xg-mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--xg-font);
  font-size:16px;
  line-height:1.8;
  color:var(--xg-text);
  background:var(--xg-bg);
  background-image:
    radial-gradient(900px 520px at 12% -6%,rgba(56,189,248,.10),transparent 62%),
    radial-gradient(760px 460px at 92% 4%,rgba(139,124,255,.10),transparent 64%),
    radial-gradient(2px 2px at 18% 22%,rgba(255,255,255,.06),transparent 100%),
    radial-gradient(2px 2px at 74% 12%,rgba(255,255,255,.05),transparent 100%),
    radial-gradient(2px 2px at 46% 40%,rgba(255,255,255,.04),transparent 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease}
img{max-width:100%;display:block}
button{font-family:inherit}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--xg-primary);outline-offset:2px}
::selection{background:rgba(56,189,248,.3)}

.xg-container{width:100%;max-width:var(--xg-container);margin:0 auto;padding:0 24px}
.xg-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ============ Header ============ */
.xg-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,10,24,.74);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--xg-line);
  transition:background .25s ease,box-shadow .25s ease;
}
.xg-header.is-scrolled{background:rgba(6,10,24,.94);box-shadow:var(--xg-shadow-sm)}
.xg-nav{display:flex;align-items:center;height:68px;gap:24px;position:relative}
.xg-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.xg-logo__mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--xg-primary),var(--xg-accent));
  box-shadow:var(--xg-glow-1);position:relative;flex:0 0 auto;
}
.xg-logo__mark span{width:10px;height:10px;border-radius:50%;background:#fff;box-shadow:0 0 10px rgba(255,255,255,.9)}
.xg-logo__mark::after{
  content:"";position:absolute;top:5px;right:6px;width:4px;height:4px;border-radius:50%;
  background:rgba(255,255,255,.85);
}
.xg-logo__text{display:flex;flex-direction:column;line-height:1.15}
.xg-logo__text strong{font-size:17px;letter-spacing:.6px}
.xg-logo__text em{font-size:11px;font-style:normal;color:var(--xg-text-3);letter-spacing:2px}
.xg-menu{display:flex;align-items:center;gap:28px;margin-left:auto}
.xg-menu a{
  position:relative;font-size:15px;color:var(--xg-text-2);padding:6px 0;white-space:nowrap;
}
.xg-menu a:hover{color:var(--xg-text)}
.xg-menu a.active{color:#fff;font-weight:600}
.xg-menu a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--xg-primary),var(--xg-accent));
  box-shadow:0 0 12px rgba(56,189,248,.6);
}
.xg-nav__actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.xg-search{position:relative;display:flex;align-items:center}
.xg-search svg{
  position:absolute;left:12px;width:16px;height:16px;fill:none;
  stroke:var(--xg-text-3);stroke-width:1.8;stroke-linecap:round;
}
.xg-search input{
  width:196px;height:38px;padding:0 14px 0 36px;font-size:13px;
  color:var(--xg-text);background:rgba(255,255,255,.04);
  border:1px solid var(--xg-line);border-radius:999px;transition:.2s ease;
}
.xg-search input::placeholder{color:var(--xg-text-3)}
.xg-search input:focus{outline:none;border-color:rgba(56,189,248,.65);box-shadow:0 0 0 3px rgba(56,189,248,.14)}

.xg-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--xg-radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease-out,filter .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out;
}
.xg-btn--sm{height:38px;padding:0 18px;font-size:14px}
.xg-btn--primary{
  background:linear-gradient(135deg,var(--xg-primary),var(--xg-accent));
  color:#fff;box-shadow:var(--xg-glow-1);
}
.xg-btn--primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 32px rgba(56,189,248,.5)}
.xg-btn--primary:active{transform:translateY(1px);box-shadow:0 0 18px rgba(56,189,248,.3)}
.xg-btn--ghost{background:transparent;border-color:rgba(56,189,248,.5);color:var(--xg-primary)}
.xg-btn--ghost:hover{background:rgba(56,189,248,.1);transform:translateY(-1px);box-shadow:0 0 22px rgba(56,189,248,.22)}
.xg-btn--ghost:active{transform:translateY(1px)}
.xg-btn--soft{background:rgba(255,255,255,.05);border-color:var(--xg-line);color:var(--xg-text)}
.xg-btn--soft:hover{border-color:var(--xg-line-strong);background:rgba(255,255,255,.09);transform:translateY(-1px)}
.xg-btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

.xg-burger{
  display:none;width:42px;height:42px;border-radius:var(--xg-radius-sm);
  border:1px solid var(--xg-line);background:rgba(255,255,255,.04);position:relative;cursor:pointer;
}
.xg-burger i,.xg-burger::before,.xg-burger::after{
  content:"";position:absolute;left:12px;right:12px;height:2px;border-radius:2px;
  background:var(--xg-text);transition:transform .22s ease,opacity .22s ease;
}
.xg-burger i{top:20px}
.xg-burger::before{top:14px}
.xg-burger::after{top:26px}
.xg-burger.is-open i{transform:scaleX(0);opacity:0}
.xg-burger.is-open::before{transform:translateY(6px) rotate(45deg)}
.xg-burger.is-open::after{transform:translateY(-6px) rotate(-45deg)}

/* ============ 页头横幅 ============ */
.xg-pagehero{position:relative;overflow:hidden;padding:56px 0 72px}
.xg-pagehero__bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.34;filter:saturate(1.05);
}
.xg-pagehero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,24,.6) 0%,rgba(6,10,24,.86) 58%,var(--xg-bg) 100%);
}
.xg-pagehero__inner{position:relative;z-index:2}
.xg-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--xg-text-3);margin-bottom:22px}
.xg-breadcrumb li{display:flex;align-items:center;gap:8px}
.xg-breadcrumb li+li::before{content:"/";color:rgba(255,255,255,.22)}
.xg-breadcrumb a:hover{color:var(--xg-primary)}
.xg-badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.4px;
  background:rgba(56,189,248,.12);color:var(--xg-primary);border:1px solid rgba(56,189,248,.28);
}
.xg-badge--warm{background:rgba(255,194,75,.12);color:var(--xg-warm);border-color:rgba(255,194,75,.34)}
.xg-pagehero h1{
  margin:18px 0 16px;font-size:clamp(30px,4.2vw,48px);font-weight:700;letter-spacing:.5px;
  max-width:16em;
}
.xg-pagehero__sub{max-width:760px;color:var(--xg-text-2);font-size:17px}
.xg-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  margin-top:26px;font-size:13px;color:var(--xg-text-3);
}
.xg-meta li{display:flex;align-items:center;gap:8px}
.xg-meta li+li::before{content:"";width:1px;height:12px;background:var(--xg-line-strong);margin-right:8px}
.xg-meta strong{color:var(--xg-text-2);font-weight:600;font-family:var(--xg-mono);font-size:13px}

/* ============ 通用板块 ============ */
.xg-section{padding:88px 0}
.xg-section--tight{padding:64px 0}
.xg-section__head{max-width:760px;margin-bottom:44px}
.xg-section__head h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:14px}
.xg-section__head p{color:var(--xg-text-2);font-size:16.5px}
.xg-eyebrow{
  display:inline-block;font-size:12px;letter-spacing:3px;color:var(--xg-primary);
  text-transform:uppercase;margin-bottom:14px;font-weight:600;
}

/* 发布通道 */
.xg-channels{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;position:relative}
.xg-channels::before{
  content:"";position:absolute;left:6%;right:6%;top:48px;height:1px;
  background:repeating-linear-gradient(90deg,rgba(139,124,255,.32) 0 8px,transparent 8px 18px);
  pointer-events:none;
}
.xg-channel{
  position:relative;z-index:1;display:flex;gap:18px;
  padding:26px;border-radius:var(--xg-radius);
  background:var(--xg-surface);border:1px solid var(--xg-line);
  box-shadow:var(--xg-shadow-sm);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.xg-channel::after{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);
  border-radius:var(--xg-radius) var(--xg-radius) 0 0;
}
.xg-channel:hover{transform:translateY(-2px);box-shadow:var(--xg-shadow-md);border-color:rgba(56,189,248,.42)}
.xg-channel__no{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  font-family:var(--xg-mono);font-size:15px;font-weight:700;color:var(--xg-primary);
  background:rgba(56,189,248,.09);border:1px solid rgba(56,189,248,.32);
}
.xg-channel h3{font-size:18px;margin-bottom:8px}
.xg-channel p{color:var(--xg-text-2);font-size:15px;line-height:1.75}
.xg-channel__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.xg-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;color:var(--xg-primary);background:rgba(56,189,248,.1);
  border:1px solid rgba(56,189,248,.2);
}
.xg-tag--warm{color:var(--xg-warm);background:rgba(255,194,75,.1);border-color:rgba(255,194,75,.28)}

/* 升级步骤 */
.xg-steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px}
.xg-step{
  position:relative;padding:24px 20px 22px;border-radius:var(--xg-radius);
  background:var(--xg-surface);border:1px solid var(--xg-line);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.xg-step:hover{transform:translateY(-2px);border-color:rgba(139,124,255,.42);box-shadow:var(--xg-shadow-md)}
.xg-step__no{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  font-family:var(--xg-mono);font-size:14px;font-weight:700;color:var(--xg-primary);
  border:1px solid rgba(56,189,248,.4);background:rgba(56,189,248,.08);
  box-shadow:0 0 16px rgba(56,189,248,.18);
}
.xg-step::after{
  content:"";position:absolute;top:41px;right:-18px;width:18px;height:1px;
  background:linear-gradient(90deg,rgba(139,124,255,.6),transparent);
}
.xg-step:last-child::after{display:none}
.xg-step h3{font-size:16px;margin:16px 0 8px}
.xg-step p{font-size:14px;color:var(--xg-text-2);line-height:1.7}

/* 版本数据块 */
.xg-data{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;background:var(--xg-line);border:1px solid var(--xg-line);
  border-radius:var(--xg-radius);overflow:hidden;
}
.xg-data__cell{background:var(--xg-surface);padding:24px 22px}
.xg-data__cell span{display:block;font-size:12.5px;color:var(--xg-text-3);letter-spacing:.6px;margin-bottom:8px}
.xg-data__cell strong{
  display:block;font-family:var(--xg-mono);font-size:20px;font-weight:700;color:var(--xg-text);
  word-break:break-all;line-height:1.4;
}
.xg-data__cell em{display:block;font-style:normal;font-size:14px;color:var(--xg-text-2);margin-top:4px}

/* 更新内容图文卡 */
.xg-features{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:32px}
.xg-feature{
  display:grid;grid-template-columns:172px 1fr;gap:22px;align-items:center;
  padding:20px;border-radius:var(--xg-radius);background:var(--xg-surface);
  border:1px solid var(--xg-line);box-shadow:var(--xg-shadow-sm);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.xg-feature:hover{transform:translateY(-2px);box-shadow:var(--xg-shadow-md);border-color:rgba(56,189,248,.42)}
.xg-feature__img{aspect-ratio:16/11;border-radius:12px;overflow:hidden;background:linear-gradient(135deg,#101838,#1B2450)}
.xg-feature__img img{width:100%;height:100%;object-fit:cover}
.xg-feature h3{font-size:17.5px;margin-bottom:8px}
.xg-feature p{font-size:14.5px;color:var(--xg-text-2);line-height:1.75}

/* 冷白反底区 */
.xg-light{
  position:relative;background:#F2F5FC;color:#101A38;
  padding:88px 0;
}
.xg-light::before,.xg-light::after{
  content:"";position:absolute;left:0;right:0;height:24px;pointer-events:none;
}
.xg-light::before{top:-24px;background:linear-gradient(to bottom,rgba(242,245,252,0),#F2F5FC)}
.xg-light::after{bottom:-24px;background:linear-gradient(to top,rgba(242,245,252,0),#F2F5FC)}
.xg-light .xg-eyebrow{color:#1E6BD6}
.xg-light .xg-section__head h2{color:#101A38}
.xg-light .xg-section__head p{color:#46557A}

.xg-checkgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.xg-checkcard{
  background:rgba(255,255,255,.78);border:1px solid #DCE5F6;border-radius:var(--xg-radius);
  padding:24px;box-shadow:0 10px 26px rgba(16,26,56,.06);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.xg-checkcard:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(16,26,56,.1);border-color:#B9CDF0}
.xg-checkcard h3{font-size:17px;color:#101A38;margin-bottom:14px}
.xg-checklist li{display:flex;gap:12px;padding:9px 0;font-size:14.5px;color:#3C4A70;line-height:1.7}
.xg-checklist li+li{border-top:1px solid #E4EBF8}
.xg-checklist li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:50%;
  background:linear-gradient(135deg,#2AA6E8,#7A6BF0);box-shadow:0 0 0 3px rgba(56,189,248,.14);
}

/* FAQ */
.xg-faq{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.xg-faq__item{
  position:relative;overflow:hidden;background:#fff;border:1px solid #DCE5F6;
  border-radius:14px;transition:box-shadow .2s ease,border-color .2s ease;
}
.xg-faq__item:hover{border-color:#B9CDF0}
.xg-faq__item.is-open{border-color:#9FC2F0;box-shadow:0 14px 32px rgba(16,26,56,.1)}
.xg-faq__item.is-open::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,#2AA6E8,#7A6BF0);
  box-shadow:0 0 16px rgba(56,189,248,.5);
}
.xg-faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:44px;padding:20px 22px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:600;color:#101A38;
}
.xg-faq__icon{
  position:relative;flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  border:1px solid #C2D3EE;background:#F5F8FF;transition:transform .22s ease,background .22s ease;
}
.xg-faq__icon::before,.xg-faq__icon::after{
  content:"";position:absolute;top:50%;left:50%;background:#3E64A8;border-radius:2px;
  transform:translate(-50%,-50%);
}
.xg-faq__icon::before{width:10px;height:2px}
.xg-faq__icon::after{width:2px;height:10px;transition:transform .22s ease,opacity .22s ease}
.xg-faq__item.is-open .xg-faq__icon{background:#E8F2FF;transform:rotate(180deg)}
.xg-faq__item.is-open .xg-faq__icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.xg-faq__a{max-height:0;overflow:hidden;transition:max-height .26s ease}
.xg-faq__a p{padding:0 22px 22px;font-size:15px;line-height:1.85;color:#46557A;max-width:760px}

/* CTA */
.xg-cta-wrap{padding:24px 0 96px}
.xg-cta{
  position:relative;overflow:hidden;border-radius:var(--xg-radius-lg);
  padding:56px 48px;text-align:center;
  background:
    radial-gradient(520px 240px at 20% 10%,rgba(56,189,248,.18),transparent 65%),
    radial-gradient(520px 240px at 82% 90%,rgba(139,124,255,.2),transparent 65%),
    var(--xg-surface-2);
  border:1px solid var(--xg-line-strong);
  box-shadow:var(--xg-shadow-lg);
}
.xg-cta h2{font-size:clamp(23px,2.6vw,32px);margin-bottom:14px}
.xg-cta p{color:var(--xg-text-2);max-width:660px;margin:0 auto 30px;font-size:16px}
.xg-cta__actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}
.xg-cta__note{margin-top:22px;font-size:13px;color:var(--xg-text-3)}

/* Footer */
.xg-footer{
  border-top:1px solid var(--xg-line);
  background:#04070F;
  padding:64px 0 28px;
}
.xg-footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1.2fr;gap:32px}
.xg-footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.xg-footer__brand strong{font-size:17px;letter-spacing:.6px}
.xg-footer__desc{font-size:13px;color:var(--xg-text-3);line-height:1.85;max-width:340px}
.xg-footer__col h4{font-size:14px;margin-bottom:16px;color:var(--xg-text)}
.xg-footer__links{display:flex;flex-direction:column;gap:10px;margin-top:16px}
.xg-footer__col .xg-footer__links{margin-top:0}
.xg-footer__links a{font-size:13px;color:var(--xg-text-3)}
.xg-footer__links a:hover{color:var(--xg-primary)}
.xg-footer__qr{display:flex;align-items:center;gap:14px}
.xg-qr{
  width:92px;height:92px;border-radius:12px;flex:0 0 auto;
  background-image:repeating-conic-gradient(#0E1430 0 25%,#E8EDFB 0 50%);
  background-size:14px 14px;border:4px solid #E8EDFB;
}
.xg-footer__qr small{font-size:12px;color:var(--xg-text-3);line-height:1.7}
.xg-footer__bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:48px;padding-top:22px;border-top:1px solid var(--xg-line);
  font-size:12.5px;color:var(--xg-text-3);
}
.xg-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:50%;display:grid;place-items:center;
  background:var(--xg-surface-2);border:1px solid var(--xg-line-strong);color:var(--xg-primary);
  cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);
  transition:.25s ease;box-shadow:var(--xg-shadow-md);
}
.xg-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.xg-top:hover{border-color:rgba(56,189,248,.6);box-shadow:var(--xg-glow-1)}
.xg-top svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ============ 响应式 ============ */
@media (max-width:1320px){
  .xg-feature{grid-template-columns:150px 1fr}
}
@media (max-width:1200px){
  .xg-steps{grid-template-columns:repeat(3,minmax(0,1fr))}
  .xg-step::after{display:none}
  .xg-data{grid-template-columns:repeat(2,minmax(0,1fr))}
  .xg-footer__grid{grid-template-columns:1.6fr 1fr 1fr;gap:28px}
}
@media (max-width:992px){
  .xg-search{display:none}
  .xg-burger{display:block}
  .xg-menu{
    position:absolute;top:100%;left:-24px;right:-24px;
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    padding:10px 24px 20px;display:none;
    background:rgba(8,12,28,.98);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    border-bottom:1px solid var(--xg-line);
    box-shadow:var(--xg-shadow-lg);
  }
  .xg-menu.is-open{display:flex}
  .xg-menu a{padding:14px 0;font-size:15.5px;border-bottom:1px solid var(--xg-line)}
  .xg-menu a:last-child{border-bottom:0}
  .xg-menu a.active::after{left:0;right:auto;width:28px;bottom:8px}
  .xg-nav__actions{margin-left:auto}
  .xg-channels{grid-template-columns:1fr}
  .xg-channels::before{display:none}
  .xg-features{grid-template-columns:1fr}
  .xg-checkgrid{grid-template-columns:1fr}
}
@media (max-width:768px){
  .xg-container{padding:0 20px}
  .xg-section{padding:56px 0}
  .xg-section--tight{padding:44px 0}
  .xg-pagehero{padding:36px 0 56px}
  .xg-pagehero__sub{font-size:15.5px}
  .xg-steps{grid-template-columns:1fr 1fr}
  .xg-feature{grid-template-columns:1fr}
  .xg-feature__img{aspect-ratio:16/9}
  .xg-light{padding:56px 0}
  .xg-cta{padding:40px 24px}
  .xg-cta-wrap{padding:16px 0 64px}
  .xg-footer__grid{grid-template-columns:1fr 1fr}
  .xg-footer__desc{max-width:none}
  .xg-footer__bottom{flex-direction:column;margin-top:36px}
  .xg-logo__text em{letter-spacing:1px}
}
@media (max-width:560px){
  .xg-nav{height:62px;gap:12px}
  .xg-logo__text strong{font-size:15.5px}
  .xg-logo__text em{font-size:10px}
  .xg-nav__actions .xg-btn--sm{padding:0 14px;font-size:13px}
  .xg-btn{width:100%}
  .xg-nav__actions .xg-btn{width:auto}
  .xg-steps{grid-template-columns:1fr}
  .xg-data{grid-template-columns:1fr}
  .xg-meta{flex-direction:column;align-items:flex-start;gap:8px}
  .xg-meta li+li::before{display:none}
  .xg-cta__actions{flex-direction:column}
  .xg-cta__actions .xg-btn{width:100%}
  .xg-footer__grid{grid-template-columns:1fr}
  .xg-footer__bottom{font-size:12px}
  .xg-top{right:16px;bottom:16px}
}
@media (max-width:380px){
  .xg-search input{width:150px}
  .xg-logo__text em{display:none}
}

/* roulang page: category3 */
/* ===================== 设计变量 ===================== */
:root{
  --xg-bg:#060A18;
  --xg-surface:#0E1430;
  --xg-surface-2:#141C3D;
  --xg-primary:#38BDF8;
  --xg-accent:#8B7CFF;
  --xg-warm:#FFC24B;
  --xg-text:#E8EDFB;
  --xg-text-2:#A6B0CF;
  --xg-text-3:#6B7794;
  --xg-line:rgba(255,255,255,.08);
  --xg-line-2:rgba(255,255,255,.16);
  --xg-grad:linear-gradient(135deg,#38BDF8 0%,#8B7CFF 100%);
  --xg-grad-line:linear-gradient(90deg,#38BDF8,#8B7CFF);
  --xg-r-card:16px;
  --xg-r-lg:20px;
  --xg-r-btn:10px;
  --xg-r-pill:999px;
  --xg-sh-sm:0 2px 8px rgba(3,6,20,.35);
  --xg-sh-md:0 12px 32px rgba(3,6,20,.45);
  --xg-sh-lg:0 24px 60px rgba(3,6,20,.55);
  --xg-glow:0 0 24px rgba(56,189,248,.35);
  --xg-glow-2:0 0 40px rgba(139,124,255,.45);
  --xg-light:#F2F5FC;
  --xg-ink:#101A38;
  --xg-ink-2:#48557A;
  --xg-container:1200px;
  --xg-gap:24px;
}

/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--xg-bg);
  color:var(--xg-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;letter-spacing:.2px;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--xg-primary);outline-offset:3px;border-radius:4px;}
.xg-skip{position:absolute;left:-9999px;top:0;background:var(--xg-surface-2);padding:10px 18px;border-radius:8px;z-index:200;}
.xg-skip:focus{left:16px;top:16px;}

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

/* ===================== 顶部信息条 ===================== */
.xg-topbar{
  height:36px;
  background:#04070F;
  border-bottom:1px solid var(--xg-line);
  font-size:12.5px;
  color:var(--xg-text-3);
  overflow:hidden;
  transition:max-height .28s ease,opacity .28s ease;
  max-height:36px;
}
.xg-topbar__inner{display:flex;align-items:center;justify-content:space-between;height:36px;gap:16px;}
.xg-topbar__tag{display:inline-flex;align-items:center;gap:8px;color:var(--xg-text-2);letter-spacing:.3px;}
.xg-topbar__tag i{width:6px;height:6px;border-radius:50%;background:var(--xg-primary);box-shadow:0 0 10px rgba(56,189,248,.9);display:inline-block;}
.xg-topbar__mid{color:var(--xg-text-3);}
.xg-topbar__links{display:flex;align-items:center;gap:18px;}
.xg-topbar__links a{color:var(--xg-text-2);}
.xg-topbar__links a:hover{color:var(--xg-primary);}

/* ===================== 主导航 ===================== */
.xg-header{
  position:sticky;
  top:0;
  z-index:90;
  background:linear-gradient(180deg,rgba(6,10,24,.92),rgba(6,10,24,.6));
  backdrop-filter:blur(6px);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
  border-bottom:1px solid transparent;
}
.xg-header.is-scrolled{
  background:rgba(8,12,28,.78);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--xg-line);
  box-shadow:var(--xg-sh-sm);
}
.xg-header.is-scrolled .xg-topbar{max-height:0;opacity:0;}
.xg-nav{display:flex;align-items:center;gap:32px;height:68px;}
.xg-logo{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.xg-logo__mark{
  width:34px;height:34px;border-radius:11px;
  background:var(--xg-grad);
  display:grid;place-items:center;
  box-shadow:var(--xg-glow);
  position:relative;
}
.xg-logo__mark span{
  width:12px;height:12px;border-radius:50%;
  background:#fff;
  box-shadow:0 0 0 3px rgba(255,255,255,.22),0 0 14px rgba(255,255,255,.8);
}
.xg-logo__text{display:flex;flex-direction:column;line-height:1.15;}
.xg-logo__text strong{font-size:17px;letter-spacing:1px;color:var(--xg-text);}
.xg-logo__text em{font-style:normal;font-size:11px;color:var(--xg-text-3);letter-spacing:1.6px;}
.xg-menu{display:flex;align-items:center;gap:6px;margin-left:8px;}
.xg-menu a{
  position:relative;
  padding:10px 14px;
  font-size:15px;
  color:var(--xg-text-2);
  border-radius:8px;
}
.xg-menu a::after{
  content:"";
  position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  border-radius:2px;
  background:var(--xg-grad-line);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease-out;
}
.xg-menu a:hover{color:var(--xg-text);background:rgba(255,255,255,.04);}
.xg-menu a.active{color:var(--xg-text);font-weight:600;}
.xg-menu a.active::after{transform:scaleX(1);}
.xg-nav__actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.xg-search{
  display:flex;align-items:center;gap:8px;
  height:38px;padding:0 12px;
  border:1px solid var(--xg-line);
  border-radius:var(--xg-r-pill);
  background:rgba(255,255,255,.03);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.xg-search svg{width:16px;height:16px;fill:none;stroke:var(--xg-text-3);stroke-width:1.8;stroke-linecap:round;}
.xg-search input{
  width:132px;border:0;background:transparent;color:var(--xg-text);outline:none;font-size:13.5px;
}
.xg-search input::placeholder{color:var(--xg-text-3);}
.xg-search:focus-within{border-color:var(--xg-primary);box-shadow:0 0 0 3px rgba(56,189,248,.16);}
.xg-burger{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--xg-line);align-items:center;justify-content:center;}
.xg-burger i{display:block;width:18px;height:2px;background:var(--xg-text);position:relative;border-radius:2px;}
.xg-burger i::before,.xg-burger i::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--xg-text);border-radius:2px;}
.xg-burger i::before{top:-6px;}
.xg-burger i::after{top:6px;}

/* ===================== 移动端抽屉 ===================== */
.xg-drawer{position:fixed;inset:0;z-index:120;pointer-events:none;}
.xg-drawer__mask{position:absolute;inset:0;background:rgba(3,6,16,.66);opacity:0;transition:opacity .3s ease;}
.xg-drawer__panel{
  position:absolute;top:0;right:0;height:100%;width:84%;max-width:340px;
  background:var(--xg-surface);
  border-left:1px solid var(--xg-line);
  padding:22px 20px 32px;
  transform:translateX(102%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
  overflow-y:auto;
  box-shadow:var(--xg-sh-lg);
}
body.xg-drawer-open .xg-drawer{pointer-events:auto;}
body.xg-drawer-open .xg-drawer__mask{opacity:1;}
body.xg-drawer-open .xg-drawer__panel{transform:translateX(0);}
.xg-drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.xg-drawer__head span{font-size:14px;color:var(--xg-text-3);letter-spacing:1px;}
.xg-drawer__close{width:38px;height:38px;border-radius:10px;border:1px solid var(--xg-line);font-size:20px;line-height:1;color:var(--xg-text-2);}
.xg-drawer__close:hover{border-color:var(--xg-primary);color:var(--xg-primary);}
.xg-drawer__group{font-size:12px;color:var(--xg-text-3);letter-spacing:1.5px;margin:6px 0 10px;}
.xg-drawer a.xg-drawer__link{
  display:block;padding:13px 14px;border-radius:10px;font-size:15.5px;color:var(--xg-text-2);
  border:1px solid transparent;
}
.xg-drawer a.xg-drawer__link:hover{background:rgba(255,255,255,.05);color:var(--xg-text);}
.xg-drawer a.xg-drawer__link.active{
  color:var(--xg-text);background:rgba(56,189,248,.1);border-color:rgba(56,189,248,.35);
}
.xg-drawer .xg-btn{margin-top:22px;}

/* ===================== 按钮 ===================== */
.xg-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--xg-r-btn);
  font-size:15px;font-weight:600;letter-spacing:.3px;
  border:1px solid transparent;
  transition:transform .18s ease-out,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease,filter .18s ease;
  white-space:nowrap;
}
.xg-btn--primary{background:var(--xg-grad);color:#fff;box-shadow:var(--xg-glow);}
.xg-btn--primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 34px rgba(56,189,248,.46);}
.xg-btn--primary:active{transform:translateY(1px);box-shadow:0 0 16px rgba(56,189,248,.3);}
.xg-btn--ghost{background:transparent;border-color:rgba(56,189,248,.5);color:var(--xg-primary);}
.xg-btn--ghost:hover{background:rgba(56,189,248,.1);transform:translateY(-1px);}
.xg-btn--ghost:active{transform:translateY(1px);}
.xg-btn--sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.xg-btn--block{width:100%;}
.xg-btn:disabled{opacity:.45;cursor:not-allowed;}

/* ===================== 通用板块 ===================== */
.xg-section{padding:88px 0;position:relative;}
.xg-section--tight{padding:64px 0;}
.xg-section__head{max-width:760px;margin-bottom:44px;}
.xg-section__head h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:14px;}
.xg-section__head p{color:var(--xg-text-2);font-size:16px;margin:0;}
.xg-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:2px;color:var(--xg-primary);
  text-transform:uppercase;margin-bottom:14px;
}
.xg-eyebrow::before{content:"";width:22px;height:1px;background:var(--xg-grad-line);display:inline-block;}
.xg-hr{height:1px;background:var(--xg-line);border:0;margin:0;}

/* ===================== 页面头图 ===================== */
.xg-pagehead{position:relative;padding:56px 0 72px;overflow:hidden;}
.xg-pagehead__bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.32;
}
.xg-pagehead::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:180px;
  background:linear-gradient(180deg,rgba(6,10,24,0),var(--xg-bg) 88%);
  pointer-events:none;
}
.xg-pagehead::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(900px 420px at 78% 12%,rgba(139,124,255,.22),transparent 62%),
             radial-gradient(700px 360px at 12% 0%,rgba(56,189,248,.16),transparent 60%);
  pointer-events:none;
}
.xg-pagehead .xg-container{position:relative;z-index:2;}
.xg-crumb{margin-bottom:26px;}
.xg-crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--xg-text-3);}
.xg-crumb li{display:flex;align-items:center;gap:10px;}
.xg-crumb li+li::before{content:"/";color:rgba(255,255,255,.2);}
.xg-crumb a{color:var(--xg-text-2);}
.xg-crumb a:hover{color:var(--xg-primary);}
.xg-crumb li[aria-current] {color:var(--xg-primary);}
.xg-pagehead h1{
  font-size:clamp(30px,4.2vw,50px);
  max-width:880px;
  margin-bottom:18px;
  background:linear-gradient(120deg,#FFFFFF 22%,#BBD8FF 78%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.xg-pagehead__sub{max-width:720px;color:var(--xg-text-2);font-size:17px;margin-bottom:28px;}
.xg-metabar{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;font-size:13px;color:var(--xg-text-3);}
.xg-metabar span{display:inline-flex;align-items:center;gap:6px;}
.xg-metabar span+span::before{content:"·";color:rgba(255,255,255,.22);margin-right:8px;}
.xg-chiprow{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.xg-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;font-size:13.5px;color:var(--xg-text-2);
  border:1px solid var(--xg-line);border-radius:var(--xg-r-pill);
  background:rgba(255,255,255,.03);
  transition:border-color .18s,color .18s,background .18s,transform .18s;
}
.xg-chip:hover{border-color:rgba(56,189,248,.5);color:var(--xg-primary);background:rgba(56,189,248,.08);transform:translateY(-1px);}

/* ===================== 时间轴 ===================== */
.xg-timeline{position:relative;padding-left:2px;}
.xg-timeline::before{
  content:"";position:absolute;left:23px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,rgba(56,189,248,.6),rgba(139,124,255,.4) 55%,rgba(139,124,255,0));
  border-radius:2px;
}
.xg-step{position:relative;padding-left:72px;margin-bottom:20px;}
.xg-step:last-child{margin-bottom:0;}
.xg-step__dot{
  position:absolute;left:8px;top:20px;
  width:32px;height:32px;border-radius:50%;
  display:grid;place-items:center;
  font-size:13px;font-weight:700;color:var(--xg-primary);
  background:var(--xg-surface-2);
  border:1px solid rgba(56,189,248,.4);
  box-shadow:0 0 0 6px rgba(6,10,24,.9);
  z-index:2;
}
.xg-step.is-now .xg-step__dot{background:var(--xg-grad);color:#fff;box-shadow:0 0 0 6px rgba(6,10,24,.9),var(--xg-glow);border-color:transparent;}
.xg-step__card{
  background:var(--xg-surface);
  border:1px solid var(--xg-line);
  border-radius:var(--xg-r-card);
  padding:22px 24px;
  position:relative;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.xg-step__card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;border-radius:var(--xg-r-card);
  background:linear-gradient(90deg,rgba(255,255,255,.18),rgba(255,255,255,0));
}
.xg-step__card:hover{border-color:rgba(56,189,248,.45);transform:translateX(2px);box-shadow:var(--xg-sh-md);}
.xg-step__card h3{font-size:18px;margin-bottom:8px;color:var(--xg-text);}
.xg-step__card p{color:var(--xg-text-2);font-size:15px;margin:0;}
.xg-step__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.xg-tag{
  font-size:12px;padding:3px 10px;border-radius:var(--xg-r-pill);
  background:rgba(56,189,248,.12);color:var(--xg-primary);border:1px solid rgba(56,189,248,.24);
}
.xg-tag--warm{background:rgba(255,194,75,.12);color:var(--xg-warm);border-color:rgba(255,194,75,.32);}

/* ===================== 冷白反底 ===================== */
.xg-light{
  background:var(--xg-light);
  color:var(--xg-ink);
  position:relative;
}
.xg-light::before,.xg-light::after{
  content:"";position:absolute;left:0;right:0;height:26px;pointer-events:none;
}
.xg-light::before{top:-26px;background:linear-gradient(180deg,rgba(242,245,252,0),rgba(242,245,252,.9));}
.xg-light::after{bottom:-26px;background:linear-gradient(0deg,rgba(242,245,252,0),rgba(242,245,252,.9));}
.xg-light h2,.xg-light h3,.xg-light h4{color:var(--xg-ink);}
.xg-light p{color:var(--xg-ink-2);}
.xg-light .xg-section__head p{color:var(--xg-ink-2);}
.xg-light .xg-eyebrow{color:#2B7FD4;}
.xg-light .xg-eyebrow::before{background:linear-gradient(90deg,#2B7FD4,#6E5BFF);}

/* ===================== 对比清单 ===================== */
.xg-compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.xg-panel{
  background:rgba(255,255,255,.72);
  border:1px solid rgba(16,26,56,.1);
  border-radius:var(--xg-r-lg);
  padding:28px 26px;
  box-shadow:0 8px 26px rgba(16,26,56,.07);
}
.xg-panel h3{font-size:19px;margin-bottom:6px;}
.xg-panel__note{font-size:13.5px;color:var(--xg-ink-2);margin-bottom:20px;}
.xg-checklist li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;
  border-top:1px dashed rgba(16,26,56,.12);
  font-size:15px;color:var(--xg-ink);
}
.xg-checklist li:first-child{border-top:0;}
.xg-checklist strong{font-weight:600;}
.xg-dot{
  flex-shrink:0;width:20px;height:20px;border-radius:50%;
  display:grid;place-items:center;margin-top:4px;
  font-size:11px;font-weight:700;
  background:rgba(43,127,212,.12);color:#2B7FD4;
}
.xg-dot--on{background:linear-gradient(135deg,#38BDF8,#8B7CFF);color:#fff;}
.xg-panel__meta{font-size:13px;color:var(--xg-ink-2);margin-top:18px;}

/* ===================== 设置卡片 ===================== */
.xg-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.xg-card{
  background:var(--xg-surface);
  border:1px solid var(--xg-line);
  border-radius:var(--xg-r-card);
  overflow:hidden;
  position:relative;
  transition:transform .2s ease-out,border-color .2s ease,box-shadow .2s ease;
  display:flex;flex-direction:column;
}
.xg-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(255,255,255,.2),rgba(255,255,255,0));
  z-index:3;
}
.xg-card:hover{transform:translateY(-2px);border-color:rgba(56,189,248,.42);box-shadow:var(--xg-sh-md);}
.xg-card__media{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(140deg,#131B3E,#0A102A);}
.xg-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease-out;}
.xg-card:hover .xg-card__media img{transform:scale(1.04);}
.xg-card__body{padding:22px 24px 24px;}
.xg-card__body h3{font-size:18px;margin-bottom:8px;}
.xg-card__body p{font-size:14.5px;color:var(--xg-text-2);margin:0 0 14px;}
.xg-card__list li{
  font-size:13.5px;color:var(--xg-text-3);
  padding:7px 0 7px 18px;position:relative;
  border-top:1px solid var(--xg-line);
}
.xg-card__list li:first-child{border-top:0;}
.xg-card__list li::before{
  content:"";position:absolute;left:2px;top:15px;width:5px;height:5px;border-radius:50%;
  background:var(--xg-primary);box-shadow:0 0 8px rgba(56,189,248,.8);
}

/* ===================== 速查列表 ===================== */
.xg-split{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:start;}
.xg-fault{background:var(--xg-surface);border:1px solid var(--xg-line);border-radius:var(--xg-r-card);overflow:hidden;}
.xg-fault li{
  display:flex;gap:16px;align-items:flex-start;
  padding:20px 24px;border-top:1px solid var(--xg-line);
  transition:background .18s ease;
}
.xg-fault li:first-child{border-top:0;}
.xg-fault li:hover{background:rgba(56,189,248,.05);}
.xg-fault h4{font-size:16px;margin-bottom:4px;}
.xg-fault p{font-size:14px;color:var(--xg-text-2);margin:0;}
.xg-fault__idx{
  flex-shrink:0;width:30px;height:30px;border-radius:9px;
  display:grid;place-items:center;font-size:13px;font-weight:700;
  background:rgba(56,189,248,.12);color:var(--xg-primary);border:1px solid rgba(56,189,248,.28);
}
.xg-visual{border-radius:var(--xg-r-lg);overflow:hidden;border:1px solid var(--xg-line);box-shadow:var(--xg-sh-md);}
.xg-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.xg-visual__cap{padding:14px 18px;font-size:13px;color:var(--xg-text-3);background:var(--xg-surface);border-top:1px solid var(--xg-line);}

/* ===================== FAQ ===================== */
.xg-faq{max-width:900px;margin:0 auto;}
.xg-faq__item{
  background:rgba(255,255,255,.72);
  border:1px solid rgba(16,26,56,.1);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  position:relative;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.xg-faq__item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--xg-grad-line);opacity:0;transition:opacity .2s ease;
}
.xg-faq__item.open{border-color:rgba(43,127,212,.45);box-shadow:0 10px 26px rgba(16,26,56,.1);}
.xg-faq__item.open::before{opacity:1;}
.xg-faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;min-height:56px;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--xg-ink);
}
.xg-faq__icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1px solid rgba(16,26,56,.2);position:relative;
  transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.xg-faq__icon::before,.xg-faq__icon::after{
  content:"";position:absolute;left:50%;top:50%;background:#2B7FD4;border-radius:2px;
  transform:translate(-50%,-50%);
}
.xg-faq__icon::before{width:11px;height:1.8px;}
.xg-faq__icon::after{width:1.8px;height:11px;transition:transform .22s ease,opacity .22s ease;}
.xg-faq__item.open .xg-faq__icon{transform:rotate(180deg);border-color:#2B7FD4;background:rgba(43,127,212,.1);}
.xg-faq__item.open .xg-faq__icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0;}
.xg-faq__a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.xg-faq__a p{
  padding:0 24px 22px;margin:0;font-size:15px;color:var(--xg-ink-2);line-height:1.85;
}

/* ===================== CTA ===================== */
.xg-cta{
  position:relative;
  border-radius:var(--xg-r-lg);
  border:1px solid var(--xg-line);
  background:var(--xg-surface-2);
  padding:52px 40px;
  overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.xg-cta::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(2px 2px at 12% 30%,rgba(255,255,255,.5),transparent 60%),
    radial-gradient(2px 2px at 26% 68%,rgba(56,189,248,.6),transparent 60%),
    radial-gradient(2px 2px at 62% 22%,rgba(255,255,255,.4),transparent 60%),
    radial-gradient(2px 2px at 78% 74%,rgba(139,124,255,.6),transparent 60%),
    radial-gradient(2px 2px at 90% 36%,rgba(255,255,255,.35),transparent 60%),
    radial-gradient(600px 280px at 82% 18%,rgba(139,124,255,.22),transparent 62%),
    radial-gradient(520px 240px at 8% 90%,rgba(56,189,248,.18),transparent 60%);
  pointer-events:none;
}
.xg-cta__text{position:relative;z-index:2;}
.xg-cta__text h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:10px;}
.xg-cta__text p{color:var(--xg-text-2);margin:0;font-size:15px;}
.xg-cta__actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}

/* ===================== 页脚 ===================== */
.xg-footer{
  margin-top:96px;
  background:#04070F;
  border-top:1px solid var(--xg-line);
  padding:64px 0 28px;
  position:relative;
}
.xg-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(56,189,248,.5),rgba(139,124,255,.5),transparent);
}
.xg-footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:32px;}
.xg-footer__brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.xg-footer__brand strong{font-size:16px;letter-spacing:1px;}
.xg-footer__desc{font-size:13.5px;color:var(--xg-text-3);line-height:1.85;margin-bottom:18px;}
.xg-footer__col h4{font-size:14px;margin-bottom:16px;color:var(--xg-text);font-weight:600;}
.xg-footer__links{display:flex;flex-direction:column;gap:10px;}
.xg-footer__links a{font-size:13.5px;color:var(--xg-text-3);}
.xg-footer__links a:hover{color:var(--xg-primary);}
.xg-footer__qr{display:flex;align-items:center;gap:14px;}
.xg-qr{
  width:74px;height:74px;border-radius:12px;
  background:
    linear-gradient(90deg,rgba(255,255,255,.14) 50%,transparent 50%) 0 0/12px 12px,
    linear-gradient(0deg,rgba(255,255,255,.14) 50%,transparent 50%) 0 0/12px 12px,
    var(--xg-surface-2);
  border:1px solid var(--xg-line);
}
.xg-footer__qr small{font-size:12.5px;color:var(--xg-text-3);line-height:1.7;}
.xg-footer__bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--xg-line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.5px;color:var(--xg-text-3);
}

/* ===================== 返回顶部 ===================== */
.xg-totop{
  position:fixed;right:24px;bottom:28px;z-index:70;
  width:46px;height:46px;border-radius:14px;
  background:var(--xg-surface-2);border:1px solid var(--xg-line-2);
  color:var(--xg-text-2);display:grid;place-items:center;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s,border-color .2s,color .2s;
  box-shadow:var(--xg-sh-md);
}
.xg-totop.show{opacity:1;visibility:visible;transform:translateY(0);}
.xg-totop:hover{border-color:var(--xg-primary);color:var(--xg-primary);}
.xg-totop svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ===================== 响应式 ===================== */
@media (max-width:1200px){
  .xg-footer__grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:36px;}
}
@media (max-width:992px){
  .xg-menu{display:none;}
  .xg-search{display:none;}
  .xg-burger{display:flex;}
  .xg-nav{gap:16px;}
  .xg-section{padding:64px 0;}
  .xg-split{grid-template-columns:1fr;gap:28px;}
  .xg-compare{grid-template-columns:1fr;}
  .xg-grid-2{grid-template-columns:1fr;}
  .xg-cta{padding:40px 28px;}
}
@media (max-width:768px){
  .xg-topbar__mid{display:none;}
  .xg-pagehead{padding:36px 0 52px;}
  .xg-pagehead h1{font-size:clamp(26px,7vw,36px);}
  .xg-pagehead__sub{font-size:16px;}
  .xg-step{padding-left:58px;}
  .xg-timeline::before{left:17px;}
  .xg-step__dot{left:2px;width:28px;height:28px;font-size:12px;}
  .xg-step__card{padding:18px 18px;}
  .xg-footer__grid{grid-template-columns:1fr 1fr;gap:28px;}
  .xg-footer{margin-top:64px;padding-top:48px;}
}
@media (max-width:560px){
  .xg-container{padding:0 20px;}
  .xg-section{padding:52px 0;}
  .xg-nav{height:60px;}
  .xg-logo__text strong{font-size:15.5px;}
  .xg-logo__text em{font-size:10px;letter-spacing:1.2px;}
  .xg-nav__actions .xg-btn--sm{display:none;}
  .xg-grid-2,.xg-compare{grid-template-columns:1fr;}
  .xg-cta__actions{width:100%;}
  .xg-cta__actions .xg-btn{width:100%;}
  .xg-footer__grid{grid-template-columns:1fr;}
  .xg-faq__q{font-size:15.5px;padding:18px 18px;}
  .xg-faq__a p{padding:0 18px 20px;}
  .xg-totop{right:16px;bottom:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto!important;}
}