:root{
  --bg:#05070f;
  --bg2:#080c18;
  --panel:rgba(255,255,255,.035);
  --panel2:rgba(255,255,255,.055);
  --line:rgba(255,255,255,.09);
  --ink:#e9eefc;
  --dim:#8d9ab6;
  --dim2:#68748f;
  --cyan:#22d3ee;
  --violet:#a78bfa;
  --grad:linear-gradient(92deg,#22d3ee 0%,#7dd3fc 40%,#a78bfa 100%);
  --radius:16px;
  --max:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:"Inter","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}

/* ---------- 背景氛围 ---------- */
.bg-fx{position:fixed;inset:0;z-index:0;pointer-events:none}
.bg-fx::before{
  content:"";position:absolute;inset:-10%;
  background:
    radial-gradient(46vw 40vw at 12% 8%, rgba(34,211,238,.13), transparent 60%),
    radial-gradient(50vw 44vw at 88% 26%, rgba(124,58,237,.14), transparent 62%),
    radial-gradient(40vw 36vw at 50% 100%, rgba(37,99,235,.10), transparent 64%);
  filter:blur(30px);
  animation:fx 40s ease-in-out infinite alternate;
}
.bg-fx::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.022) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(120% 80% at 50% 0%, #000 20%, transparent 78%);
  -webkit-mask-image:radial-gradient(120% 80% at 50% 0%, #000 20%, transparent 78%);
}
@keyframes fx{
  from{transform:translate3d(-2%,-1%,0) scale(1)}
  to{transform:translate3d(2%,2%,0) scale(1.05)}
}

/* ---------- 布局 ---------- */
.wrap{position:relative;z-index:1}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}
section{padding:88px 0}
.sec-head{max-width:720px;margin-bottom:48px}
.sec-head .kicker{
  font-size:11px;letter-spacing:.34em;text-transform:uppercase;color:var(--cyan);
  margin-bottom:14px;
}
.sec-head h2{
  font-size:clamp(26px,3.6vw,40px);font-weight:600;letter-spacing:-.01em;line-height:1.25;
}
.sec-head p{margin-top:14px;color:var(--dim);font-size:15.5px}

/* ---------- 导航 ---------- */
header{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  background:rgba(5,7,15,.72);
  border-bottom:1px solid var(--line);
}
.nav{max-width:var(--max);margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;letter-spacing:.02em;white-space:nowrap}
.brand .mark{width:26px;height:26px;flex:none}
.brand .en{font-size:16px}
.brand .cn{font-size:12px;color:var(--dim2);letter-spacing:.08em}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:auto}
.nav-links a{font-size:14px;color:var(--dim);transition:color .25s}
.nav-links a:hover{color:var(--ink)}
.nav-actions{display:flex;align-items:center;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:38px;padding:0 18px;border-radius:999px;font-size:14px;
  border:1px solid var(--line);color:var(--ink);
  transition:.28s cubic-bezier(.2,.7,.2,1);white-space:nowrap;
}
.btn:hover{border-color:rgba(34,211,238,.6);box-shadow:0 0 24px rgba(34,211,238,.14);transform:translateY(-1px)}
.btn.primary{
  background:var(--grad);color:#04121c;font-weight:600;border:none;
}
.btn.primary:hover{box-shadow:0 0 30px rgba(34,211,238,.34)}
.btn.lg{height:48px;padding:0 28px;font-size:15px}
.nav-toggle{display:none;margin-left:auto;width:38px;height:38px;border:1px solid var(--line);
  border-radius:10px;background:none;color:var(--ink);cursor:pointer;font-size:16px}

/* ---------- Hero ---------- */
.hero{padding:84px 0 72px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(34,211,238,.28);background:rgba(34,211,238,.06);
  font-size:12px;letter-spacing:.14em;color:#9fe9f7;margin-bottom:26px;
}
.badge i{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);
  animation:blink 2.4s ease-in-out infinite;font-style:normal}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{
  font-size:clamp(32px,5.2vw,58px);line-height:1.14;font-weight:600;letter-spacing:-.02em;
}
.hero h1 .g{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero .en-slogan{
  margin-top:18px;font-size:clamp(15px,1.9vw,19px);color:#b9c6e2;font-weight:400;letter-spacing:.01em;
}
.hero .cn-slogan{margin-top:8px;font-size:clamp(14px,1.6vw,17px);color:var(--dim)}
.hero .lede{margin-top:24px;color:var(--dim);font-size:15.5px;max-width:560px}
.hero-cta{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}

/* ---------- Hero 视觉 ---------- */
.orb{position:relative;aspect-ratio:1/1;width:100%}
.orb-core{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:22%;aspect-ratio:1/1;border-radius:50%;
  background:radial-gradient(circle at 34% 30%, #4b6ea8 0%, #16203c 46%, #060a14 100%);
  box-shadow:0 0 60px rgba(34,211,238,.30), inset 0 0 0 1px rgba(160,220,255,.16);
}
.orb-core::after{
  content:"";position:absolute;inset:-24%;border-radius:50%;
  background:radial-gradient(circle, rgba(34,211,238,.16), transparent 66%);
  filter:blur(10px);
}
.orb-node{
  position:absolute;transform:translate(-50%,-50%);
  padding:9px 15px;border-radius:12px;font-size:12.5px;white-space:nowrap;
  background:rgba(10,16,32,.82);border:1px solid var(--line);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  color:#d5e2fb;letter-spacing:.02em;
}
.orb-node b{display:block;font-size:11px;font-weight:400;color:var(--dim2);letter-spacing:.1em}
.orb-node.c1{left:8%;top:26%}
.orb-node.c2{right:4%;top:52%}
.orb-node.c3{left:18%;bottom:10%}

/* ---------- 卡片 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{
  padding:30px;border-radius:var(--radius);
  background:var(--panel);border:1px solid var(--line);
  transition:.36s cubic-bezier(.2,.7,.2,1);
}
.card:hover{
  background:var(--panel2);border-color:rgba(167,139,250,.32);
  transform:translateY(-4px);box-shadow:0 18px 44px rgba(0,0,0,.42);
}
.card .ico{
  width:42px;height:42px;border-radius:12px;margin-bottom:18px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg, rgba(34,211,238,.18), rgba(167,139,250,.16));
  border:1px solid rgba(255,255,255,.10);
}
.card h3{font-size:18px;font-weight:600;margin-bottom:6px}
.card .sub{font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--dim2);margin-bottom:14px}
.card p{color:var(--dim);font-size:14.5px}
.card ul{list-style:none;margin-top:16px}
.card ul li{
  position:relative;padding-left:18px;font-size:14px;color:var(--dim);margin-bottom:8px;
}
.card ul li::before{
  content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:50%;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.step{padding:26px;border-radius:var(--radius);border:1px solid var(--line);background:var(--panel)}
.step .n{
  width:32px;height:32px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:600;color:#04121c;background:var(--grad);margin-bottom:16px;
}
.step h4{font-size:16px;font-weight:600;margin-bottom:8px}
.step p{font-size:14px;color:var(--dim)}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.plan{
  padding:32px;border-radius:var(--radius);border:1px solid var(--line);background:var(--panel);
  display:flex;flex-direction:column;
}
.plan.hot{
  border-color:rgba(167,139,250,.42);
  background:linear-gradient(180deg, rgba(167,139,250,.10), rgba(255,255,255,.02));
}
.plan .tag{
  align-self:flex-start;font-size:10.5px;letter-spacing:.2em;padding:4px 10px;border-radius:999px;
  background:rgba(167,139,250,.18);color:#ddd0ff;margin-bottom:14px;
}
.plan h3{font-size:17px;font-weight:600}
.plan .amount{font-size:34px;font-weight:600;margin:14px 0 4px;letter-spacing:-.02em}
.plan .amount span{font-size:14px;font-weight:400;color:var(--dim2)}
.plan .note{font-size:12.5px;color:var(--dim2);margin-bottom:20px}
.plan ul{list-style:none;flex:1}
.plan ul li{position:relative;padding-left:20px;font-size:14px;color:var(--dim);margin-bottom:10px}
.plan ul li::before{content:"✓";position:absolute;left:0;color:var(--cyan);font-size:13px}
.plan .btn{margin-top:24px;width:100%}

/* ---------- CTA ---------- */
.cta-band{
  padding:56px 40px;border-radius:22px;text-align:center;
  background:linear-gradient(140deg, rgba(34,211,238,.10), rgba(167,139,250,.12));
  border:1px solid rgba(255,255,255,.10);
}
.cta-band h2{font-size:clamp(24px,3.2vw,34px);font-weight:600}
.cta-band p{margin-top:12px;color:var(--dim);font-size:15px}
.cta-band .row{display:flex;gap:14px;justify-content:center;margin-top:28px;flex-wrap:wrap}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
table{width:100%;border-collapse:collapse;min-width:620px}
th,td{padding:14px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line)}
th{color:var(--dim2);font-weight:500;font-size:12px;letter-spacing:.12em;text-transform:uppercase;
   background:rgba(255,255,255,.02)}
td{color:var(--dim)}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover td{color:var(--ink);background:rgba(255,255,255,.02)}

/* ---------- 代码 ---------- */
.code{
  border-radius:var(--radius);border:1px solid var(--line);overflow:hidden;
  background:#070b15;
}
.code .bar{
  display:flex;align-items:center;gap:8px;padding:10px 16px;
  border-bottom:1px solid var(--line);background:rgba(255,255,255,.03);
  font-size:12px;color:var(--dim2);letter-spacing:.08em;
}
.code .bar i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.14);font-style:normal}
.code pre{
  padding:20px;overflow-x:auto;font-size:13px;line-height:1.75;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;color:#c8d6f0;
}
.code .k{color:#a78bfa}.code .s{color:#7dd3fc}.code .c{color:#5b6783}.code .f{color:#22d3ee}

/* ---------- 页脚 ---------- */
footer{
  position:relative;z-index:1;margin-top:40px;
  border-top:1px solid var(--line);padding:56px 0 32px;background:rgba(255,255,255,.012);
}
.f-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:36px}
.f-col h5{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--dim2);margin-bottom:16px}
.f-col a{display:block;font-size:14px;color:var(--dim);margin-bottom:10px;transition:color .25s}
.f-col a:hover{color:var(--cyan)}
.f-bottom{
  margin-top:40px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--dim2);
}

/* ---------- 响应式 ---------- */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .orb{max-width:420px;margin:0 auto}
  .grid-3,.price-grid{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .f-grid{grid-template-columns:1fr 1fr}
  section{padding:64px 0}
}
@media (max-width:720px){
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:64px;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(6,9,18,.97);border-bottom:1px solid var(--line);padding:12px 24px 20px;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.05)}
  .nav-actions{display:none}
  .nav-toggle{display:block}
  .orb-node{font-size:11px;padding:7px 11px}
  .steps{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr}
  .cta-band{padding:40px 22px}
}
@media (prefers-reduced-motion:reduce){
  .bg-fx::before{animation:none}
  .badge i{animation:none}
}

/* ---------- 草案状态提示 ---------- */
.draft-bar{
  position:relative;z-index:40;
  border-bottom:1px solid rgba(251,191,36,.26);
  background:linear-gradient(90deg, rgba(251,191,36,.13), rgba(251,191,36,.03) 70%, transparent);
}
.draft-bar .container{
  display:flex;gap:12px;align-items:flex-start;flex-wrap:wrap;
  padding-top:15px;padding-bottom:15px;
  font-size:13.5px;color:#e9d6a8;line-height:1.65;
}
.draft-bar .tag{
  flex:none;font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  padding:3px 9px;border-radius:6px;
  border:1px solid rgba(251,191,36,.42);background:rgba(251,191,36,.10);color:#fbe08a;
}
.draft-bar p{flex:1;min-width:260px}
.draft-bar a{color:#fbe08a;border-bottom:1px solid rgba(251,191,36,.4)}
.draft-note{
  border:1px solid rgba(251,191,36,.24);background:rgba(251,191,36,.05);
  border-radius:14px;padding:18px 20px;color:#e3d0a4;
  font-size:14.5px;line-height:1.72;
}
.draft-note strong{color:#fbe08a;font-weight:600}
.code.draft .bar{background:rgba(251,191,36,.09);border-bottom-color:rgba(251,191,36,.2);color:#d8c595}
.code.draft .bar::after{
  content:"草案 · 不可运行";margin-left:auto;flex:none;
  font-size:10.5px;letter-spacing:.14em;color:#fbe08a;
  border:1px solid rgba(251,191,36,.36);border-radius:5px;padding:2px 7px;
}
.tag-draft{
  display:inline-block;font-size:11px;letter-spacing:.08em;color:#fbe08a;white-space:nowrap;
  padding:2px 8px;border-radius:6px;border:1px solid rgba(251,191,36,.32);background:rgba(251,191,36,.07);
}
@media (max-width:720px){
  .code.draft .bar::after{display:none}
}