/* hnzqgljt.com — binance 安全官网 · 科技未来风（站点样式）
   深空渐变底 + 电光紫/霓虹粉/渐变蓝 + 玻璃拟态 + 粒子层 + 微立体插画
   与已建四站区隔：wqzhu 纯白极简 / cqsxld·jpsxsc 浅色 / youlanls·nfawu 黑金，本套是紫粉霓虹 */
:root{
  --bg0:#06050e; --bg1:#0a0818; --bg2:#110c24; --bg3:#160f30;
  --gl:rgba(255,255,255,.055); --gl2:rgba(255,255,255,.085);
  --gb:rgba(255,255,255,.11); --gb2:rgba(255,255,255,.18);
  --tx:#efeafc; --tx2:#b6aed6; --mt:#7e7699; --mt2:#5f5878;
  --vi:#a855f7; --pk:#ff2d95; --bl:#3b82f6; --cy:#22d3ee;
  --grad:linear-gradient(120deg,#3b82f6 0%,#a855f7 48%,#ff2d95 100%);
  --grad2:linear-gradient(120deg,#22d3ee 0%,#a855f7 100%);
  --wrap:1180px; --r:18px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg0);color:var(--tx);font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:15px;line-height:1.85;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px;width:100%}
.gt{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* ============ 全局粒子层（纯 CSS，GPU 只跑 transform/opacity）============ */
.particles{position:fixed;inset:0;pointer-events:none;z-index:1;overflow:hidden}
.particles i{position:absolute;width:3px;height:3px;border-radius:50%;background:#fff;opacity:.35;
  box-shadow:0 0 8px 2px rgba(168,85,247,.5);animation:float 18s ease-in-out infinite}
.particles i.c{background:#67e8f9;box-shadow:0 0 10px 2px rgba(34,211,238,.6)}
.particles i.p{background:#ff7ac4;box-shadow:0 0 10px 2px rgba(255,45,149,.55)}
@keyframes float{
  0%{transform:translate3d(0,0,0) scale(1);opacity:.2}
  50%{transform:translate3d(14px,-46px,0) scale(1.25);opacity:.75}
  100%{transform:translate3d(0,0,0) scale(1);opacity:.2}
}
.aura{position:fixed;inset:0;pointer-events:none;z-index:0}
.aura b{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5;animation:pulse 12s ease-in-out infinite}
.aura b:nth-child(1){width:520px;height:520px;left:-120px;top:-80px;background:radial-gradient(circle,rgba(59,130,246,.55),transparent 68%)}
.aura b:nth-child(2){width:600px;height:600px;right:-180px;top:120px;background:radial-gradient(circle,rgba(168,85,247,.5),transparent 68%);animation-delay:-4s}
.aura b:nth-child(3){width:460px;height:460px;left:34%;top:62%;background:radial-gradient(circle,rgba(255,45,149,.34),transparent 70%);animation-delay:-8s}
@keyframes pulse{0%,100%{transform:scale(1);opacity:.42}50%{transform:scale(1.14);opacity:.62}}
@media (prefers-reduced-motion: reduce){
  .particles i,.aura b,.scan::after,.ring::after{animation:none!important}
}

/* ============ 玻璃拟态基类 ============ */
.gl{background:var(--gl);border:1px solid var(--gb);border-radius:var(--r);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  box-shadow:0 20px 50px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.09);position:relative}
.gl::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;pointer-events:none;
  background:linear-gradient(140deg,rgba(255,255,255,.28),transparent 42%,transparent 62%,rgba(168,85,247,.28));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude}

/* ============ 导航 ============ */
.nav{position:sticky;top:0;z-index:60;background:rgba(10,8,24,.62);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px);
  border-bottom:1px solid rgba(255,255,255,.08)}
.nav .wrap{display:flex;align-items:center;height:70px;gap:26px}
.lg{display:flex;align-items:center;gap:11px;font-size:16.5px;font-weight:800;letter-spacing:-.01em;flex-shrink:0}
.lg .mk{width:32px;height:32px;border-radius:10px;background:var(--grad);display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:16px;color:#fff;box-shadow:0 0 22px rgba(168,85,247,.6)}
.lg em{font-style:normal;font-weight:500;font-size:12px;color:var(--mt);letter-spacing:.2em;margin-left:2px}
.nmenu{display:flex;gap:28px;margin-left:auto;margin-right:8px}
.nmenu a{font-size:13.5px;color:var(--tx2);transition:.2s;position:relative}
.nmenu a:hover,.nmenu a.on{color:#fff}
.nmenu a.on::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;background:var(--grad)}
.btn-g{display:inline-block;background:var(--grad);color:#fff;font-weight:700;font-size:13.5px;padding:11px 24px;border-radius:999px;
  box-shadow:0 8px 26px rgba(168,85,247,.42);transition:.2s}
.btn-g:hover{transform:translateY(-1px);box-shadow:0 12px 34px rgba(255,45,149,.5)}
.btn-o{display:inline-block;border:1px solid var(--gb2);color:var(--tx2);font-size:13.5px;padding:10px 22px;border-radius:999px;transition:.2s}
.btn-o:hover{border-color:var(--vi);color:#fff;box-shadow:0 0 22px rgba(168,85,247,.3)}
.mbtn{display:none;width:40px;height:38px;background:var(--gl);border:1px solid var(--gb);border-radius:11px;position:relative;cursor:pointer}
.mbtn i{position:absolute;left:12px;width:16px;height:2px;background:var(--tx);border-radius:2px}
.mbtn i:nth-child(1){top:12px}.mbtn i:nth-child(2){top:18px}.mbtn i:nth-child(3){top:24px}
.mnav{display:none;background:rgba(10,8,24,.95);backdrop-filter:blur(20px);border-bottom:1px solid var(--gb)}
.mnav.open{display:block}
.mnav a{display:block;padding:15px 28px;border-bottom:1px solid rgba(255,255,255,.06);font-size:14.5px;color:var(--tx2)}

/* ============ 首屏 ============ */
.hero{position:relative;z-index:5;padding:88px 0 100px}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.kick{display:inline-flex;align-items:center;gap:9px;font-size:11.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--cy);
  border:1px solid rgba(34,211,238,.34);background:rgba(34,211,238,.07);padding:6px 15px;border-radius:999px;margin-bottom:26px}
.kick b{width:5px;height:5px;border-radius:50%;background:var(--cy);box-shadow:0 0 10px 2px rgba(34,211,238,.8)}
.hero h1{font-size:56px;line-height:1.16;font-weight:800;letter-spacing:-.035em;margin-bottom:24px}
.hero .sub{font-size:15.5px;color:var(--tx2);line-height:2;max-width:540px;margin-bottom:34px}
.hero .btns{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.hero .note{font-size:12px;color:var(--mt2);margin-top:26px}

/* 安全防护舱（右侧玻璃大卡 + 微立体盾牌 + 扫描线） */
.pod{padding:26px;border-radius:24px}
.pod .ph{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.pod .ph b{font-size:14.5px}
.pod .ph span{font-size:11px;color:#6ee7b7;display:flex;align-items:center;gap:7px;letter-spacing:.08em}
.pod .ph span i{width:6px;height:6px;border-radius:50%;background:#34d399;box-shadow:0 0 10px 2px rgba(52,211,153,.9);animation:pulse 2.2s ease-in-out infinite}
/* 微立体盾牌 */
.shield3d{height:190px;display:flex;align-items:center;justify-content:center;position:relative;margin-bottom:20px}
.shield3d .halo{position:absolute;width:150px;height:150px;border-radius:50%;background:radial-gradient(circle,rgba(168,85,247,.55),transparent 66%);filter:blur(24px);animation:pulse 6s ease-in-out infinite}
.shield3d .core{position:relative;width:102px;height:122px;filter:drop-shadow(0 20px 34px rgba(168,85,247,.62))}
.shield3d .core i{position:absolute;inset:0;display:block;
  background:linear-gradient(150deg,#67e8f9 0%,#a855f7 46%,#ff2d95 100%);
  clip-path:polygon(50% 0%,100% 17%,100% 54%,50% 100%,0 54%,0 17%)}
.shield3d .core i::before{content:"";position:absolute;inset:0;clip-path:inherit;
  background:linear-gradient(150deg,rgba(255,255,255,.55),transparent 48%)}
.shield3d .core i::after{content:"";position:absolute;left:50%;top:47%;width:25px;height:33px;
  border:solid #fff;border-width:0 5px 5px 0;border-radius:2px;transform:translate(-50%,-54%) rotate(45deg)}
.shield3d .core i::after{box-shadow:1px 1px 0 rgba(0,0,0,.15)}
/* 防护层级读数 */
.lvl{display:flex;align-items:center;gap:12px;padding:11px 0;border-top:1px solid rgba(255,255,255,.07);font-size:12.5px}
.lvl:first-of-type{border-top:none}
.lvl .bar{flex:1;height:5px;border-radius:3px;background:rgba(255,255,255,.08);overflow:hidden}
.lvl .bar i{display:block;height:100%;border-radius:3px;background:var(--grad)}
.lvl span{color:var(--mt);min-width:76px}
.lvl b{min-width:42px;text-align:right;font-variant-numeric:tabular-nums;font-weight:600}
/* 扫描线 */
.scan{position:relative;overflow:hidden}
.scan::after{content:"";position:absolute;left:-40%;top:0;width:40%;height:100%;pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(103,232,249,.16),transparent);animation:scanx 4.6s linear infinite}
@keyframes scanx{0%{transform:translateX(0)}100%{transform:translateX(350%)}}

/* ============ 区块通用 ============ */
.sec{position:relative;z-index:5;padding:110px 0}
.sec-h{text-align:center;max-width:720px;margin:0 auto 56px}
.sec-h .kick{margin-bottom:20px}
.sec-h h2{font-size:38px;font-weight:800;letter-spacing:-.03em;line-height:1.24}
.sec-h p{font-size:14.5px;color:var(--mt);margin-top:16px;line-height:1.95}

/* 防护层剖面：玻璃薄片阶梯堆叠 */
.stack{display:flex;flex-direction:column;gap:12px;max-width:940px;margin:0 auto}
.sl{padding:22px 26px;display:grid;grid-template-columns:56px 1fr 1.2fr 92px;gap:24px;align-items:center;
  transition:transform .28s cubic-bezier(.2,.7,.3,1),box-shadow .28s;cursor:default}
.sl .ic{width:44px;height:44px;border-radius:13px;background:var(--grad2);display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:800;color:#07060f;letter-spacing:.04em}
.sl h3{font-size:16.5px;font-weight:700;letter-spacing:-.01em}
.sl p{font-size:13px;color:var(--mt);line-height:1.8}
.sl .tag{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--cy);text-align:right}
.sl:hover{transform:translateX(14px) translateY(-2px);box-shadow:0 26px 60px rgba(168,85,247,.34)}
.sl:nth-child(1){margin-left:0}
.sl:nth-child(2){margin-left:22px}
.sl:nth-child(3){margin-left:44px}
.sl:nth-child(4){margin-left:66px}
.sl:nth-child(5){margin-left:88px}

/* 环形仪表 */
.rings{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.rg{padding:30px 22px;text-align:center}
.ring{width:112px;height:112px;border-radius:50%;margin:0 auto 18px;position:relative;display:flex;align-items:center;justify-content:center}
.ring::before{content:"";position:absolute;inset:0;border-radius:50%;background:conic-gradient(from -90deg,#3b82f6 0%,#a855f7 38%,#ff2d95 var(--p),rgba(255,255,255,.07) 0)}
.ring::after{content:"";position:absolute;inset:9px;border-radius:50%;background:var(--bg2);box-shadow:inset 0 0 22px rgba(168,85,247,.28)}
.ring b{position:relative;z-index:2;font-size:23px;font-weight:800;font-variant-numeric:tabular-nums}
.rg span{font-size:12.5px;color:var(--mt);display:block}

/* 响应流程：横向 + 扫描光带 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.fl{padding:26px 22px}
.fl .n{font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--pk);margin-bottom:14px;font-weight:700}
.fl h4{font-size:16px;font-weight:700;margin-bottom:10px}
.fl p{font-size:12.5px;color:var(--mt);line-height:1.8}

/* 能力矩阵 2×3 */
.mx{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.mxi{padding:28px 24px}
.mxi .dot{width:8px;height:8px;border-radius:50%;background:var(--grad);margin-bottom:18px;box-shadow:0 0 14px 3px rgba(168,85,247,.55)}
.mxi h4{font-size:15.5px;font-weight:700;margin-bottom:10px}
.mxi p{font-size:12.5px;color:var(--mt);line-height:1.8}

/* CTA */
.cta{position:relative;z-index:5;padding:0 0 110px}
.cta .box{padding:56px 48px;text-align:center;border-radius:26px;overflow:hidden}
.cta .box::after{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--grad)}
.cta h2{font-size:34px;font-weight:800;letter-spacing:-.03em;margin-bottom:14px}
.cta p{font-size:14px;color:var(--mt);margin-bottom:30px}
.cta .btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ============ 页脚 ============ */
footer{position:relative;z-index:5;border-top:1px solid rgba(255,255,255,.08);background:rgba(6,5,14,.72);backdrop-filter:blur(16px);padding:56px 0 44px}
.fg{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:26px;padding-bottom:34px}
.fg h4{font-size:12.5px;font-weight:700;margin-bottom:14px;color:#fff}
.fg a{display:block;font-size:12.5px;color:var(--mt);padding:4px 0;transition:.18s}
.fg a:hover{color:var(--cy)}
.fg .fb p{font-size:12.5px;color:var(--mt);line-height:1.9;margin-top:14px;max-width:280px}
.fbar{border-top:1px solid rgba(255,255,255,.08);padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:var(--mt2)}

/* ============================================================
   L1 栏目页
   ============================================================ */
.phead{position:relative;z-index:5;padding:80px 0 56px;text-align:center}
.phead h1{font-size:44px;font-weight:800;letter-spacing:-.035em;margin:22px 0 18px}
.phead p{font-size:14.5px;color:var(--mt);max-width:680px;margin:0 auto;line-height:1.95}
.plist{position:relative;z-index:5;padding:0 0 100px}
.pcard{padding:26px 30px;margin-bottom:16px;display:grid;grid-template-columns:1fr auto;gap:26px;align-items:center;transition:.24s}
.pcard:hover{transform:translateY(-3px);box-shadow:0 26px 56px rgba(168,85,247,.3)}
.pcard h3{font-size:18px;font-weight:700;letter-spacing:-.01em;margin-bottom:10px}
.pcard p{font-size:13px;color:var(--mt);line-height:1.85;max-width:760px}
.pcard .mt{margin-top:12px;display:flex;gap:14px;align-items:center;font-size:11.5px;color:var(--mt2);letter-spacing:.06em}
.pcard .lv{font-size:11px;padding:3px 11px;border-radius:999px;border:1px solid rgba(34,211,238,.35);color:var(--cy);background:rgba(34,211,238,.08)}
.pcard .no{font-size:22px;font-weight:800;font-variant-numeric:tabular-nums;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;opacity:.9}
.pager{display:flex;gap:10px;justify-content:center;padding-top:36px}
.pager a{min-width:40px;height:40px;line-height:38px;text-align:center;border:1px solid var(--gb);border-radius:12px;
  font-size:13px;color:var(--tx2);padding:0 13px;background:var(--gl);transition:.2s}
.pager a:hover{border-color:var(--vi);color:#fff}
.pager a.cur{background:var(--grad);border-color:transparent;color:#fff;font-weight:700}

/* ============================================================
   L2 文章页
   ============================================================ */
.ahead{position:relative;z-index:5;padding:72px 0 44px;text-align:center}
.ahead .in{max-width:860px;margin:0 auto}
.ahead h1{font-size:38px;font-weight:800;letter-spacing:-.03em;line-height:1.3;margin:22px 0 26px}
.ameta{display:flex;justify-content:center;gap:12px 26px;flex-wrap:wrap;font-size:12px;color:var(--mt2);letter-spacing:.06em;padding-top:22px;border-top:1px solid rgba(255,255,255,.08)}
.ameta b{color:var(--tx2);font-weight:600}
.abody{position:relative;z-index:5;padding:0 0 96px}
.abody .in{max-width:820px;margin:0 auto}
.abody p{font-size:15.5px;color:var(--tx2);line-height:2.05;margin-bottom:20px}
.abody h2{font-size:22px;font-weight:700;letter-spacing:-.02em;margin:44px 0 18px;padding-left:16px;position:relative}
.abody h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--grad)}
.abody figure{margin:34px 0;border-radius:var(--r);overflow:hidden;border:1px solid var(--gb)}
.abody .imph{height:280px;background:linear-gradient(135deg,#181033,#0e0a20 55%,#221243);display:flex;align-items:center;justify-content:center;
  color:#4c4270;font-size:12px;letter-spacing:.24em;text-transform:uppercase}
.anote{margin-top:44px;padding:22px 26px;border-radius:var(--r);font-size:13px;color:var(--mt);line-height:1.95}
.anav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:34px}
.anav a{padding:22px 26px;border-radius:var(--r)}
.anav a span{display:block;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--mt2);margin-bottom:8px}
.anav a b{font-size:14px;font-weight:600;line-height:1.6}
.anav a.nx{text-align:right}
.aback{display:inline-block;margin-top:30px;font-size:13px;color:var(--mt)}
.aback:hover{color:var(--cy)}

/* ============================================================
   信息页 / 404
   ============================================================ */
.pg{position:relative;z-index:5;padding:0 0 100px}
.pg .in{max-width:820px;margin:0 auto}
.pg h2{font-size:20px;font-weight:700;margin:40px 0 14px;padding-left:15px;position:relative}
.pg h2:first-child{margin-top:0}
.pg h2::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;border-radius:3px;background:var(--grad)}
.pg p{font-size:14.5px;color:var(--tx2);line-height:2;margin-bottom:14px}
.pg ul{list-style:none;margin:0 0 14px}
.pg li{font-size:14px;color:var(--tx2);line-height:1.95;padding-left:22px;position:relative;margin-bottom:9px}
.pg li::before{content:"";position:absolute;left:0;top:12px;width:7px;height:7px;border-radius:2px;background:var(--grad);transform:rotate(45deg)}
.err{padding:34px 0 0;text-align:center}
.err .code{font-size:72px;font-weight:800;letter-spacing:-.05em;line-height:1;margin-bottom:18px}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1024px){
  .hero .wrap{grid-template-columns:1fr;gap:48px}
  .hero h1{font-size:42px}
  .sl{grid-template-columns:48px 1fr;gap:18px}
  .sl p{grid-column:2}
  .sl .tag{grid-column:2;text-align:left}
  .sl:nth-child(n){margin-left:0}
  .rings{grid-template-columns:1fr 1fr}
  .flow{grid-template-columns:1fr 1fr}
  .mx{grid-template-columns:1fr 1fr}
  .fg{grid-template-columns:1.4fr 1fr 1fr}
  .phead h1{font-size:34px}
  .ahead h1{font-size:29px}
}
@media (max-width:900px){
  .nmenu{display:none}
  .mbtn{display:block}
  .nav .wrap{justify-content:space-between;gap:14px}
  .nav .btn-g{margin-left:auto;margin-right:10px}
  .hero{padding:56px 0 68px}
  .hero h1{font-size:34px}
  .sec{padding:76px 0}
  .sec-h h2{font-size:26px}
  .cta .box{padding:40px 26px}
  .cta h2{font-size:25px}
}
@media (max-width:600px){
  .wrap{padding:0 20px}
  .hero h1{font-size:29px}
  .hero .btns{flex-direction:column;align-items:stretch}
  .hero .btns a{text-align:center}
  .rings,.flow,.mx{grid-template-columns:1fr}
  .fg{grid-template-columns:1fr}
  .pcard{grid-template-columns:1fr;gap:14px}
  .pcard .no{display:none}
  .anav{grid-template-columns:1fr}
  .anav a.nx{text-align:left}
  .aura b{filter:blur(60px);opacity:.35}
}

/* 正文配图：随栏宽自适应（修补：原缺此规则导致小图配大边框）*/
.abody img{width:100%;height:auto;display:block}