/* ============ 基础变量与重置 ============ */
:root{
  --navy:#0b2545;
  --navy-2:#13315c;
  --navy-3:#0e3a5f;
  --cyan:#00c2cb;
  --teal:#2dd4bf;
  --gold:#f5a623;
  --ink:#16222f;
  --muted:#5b6b7b;
  --bg:#ffffff;
  --bg-soft:#f3f8fb;
  --line:#e4edf3;
  --radius:18px;
  --shadow:0 18px 50px -20px rgba(11,37,69,.35);
  --maxw:1160px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.grad-text{
  background:linear-gradient(90deg,var(--cyan),var(--teal));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-weight:600;font-size:15px;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease;
  cursor:pointer;border:1.5px solid transparent;white-space:nowrap;
}
.btn--primary{
  background:linear-gradient(135deg,var(--cyan),var(--teal));
  color:#042;box-shadow:0 12px 30px -12px rgba(0,194,203,.7);
}
.btn--primary:hover{transform:translateY(-3px);box-shadow:0 18px 40px -14px rgba(0,194,203,.85)}
.btn--ghost{border-color:rgba(255,255,255,.35);color:#fff;background:rgba(255,255,255,.06)}
.btn--ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-3px)}

/* ============ 导航 ============ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  transition:background .3s ease,box-shadow .3s ease;
}
.nav.scrolled{background:rgba(11,37,69,.92);backdrop-filter:blur(10px);box-shadow:0 6px 24px -16px rgba(0,0,0,.6)}
.nav__inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700}
.brand__mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--cyan),var(--teal));color:#042;font-size:20px;font-weight:800;
  box-shadow:0 8px 20px -10px rgba(0,194,203,.8);
}
.brand__name{font-size:20px;letter-spacing:1px}
.nav__links{display:flex;gap:26px;margin-left:auto;margin-right:22px}
.nav__links a{color:rgba(255,255,255,.82);font-size:15px;font-weight:500;position:relative;transition:color .2s}
.nav__links a:hover{color:#fff}
.nav__links a::after{
  content:"";position:absolute;left:0;bottom:-6px;height:2px;width:0;background:linear-gradient(90deg,var(--cyan),var(--teal));transition:width .25s
}
.nav__links a:hover::after{width:100%}
.nav__cta{padding:9px 18px;font-size:14px}
.nav__toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav__toggle span{width:24px;height:2px;background:#fff;border-radius:2px;transition:.3s}
/* 语言切换器 */
.lang{display:flex;align-items:center;gap:2px;margin-left:14px;padding:3px;border-radius:11px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14)}
.lang__btn{font:inherit;font-size:13px;font-weight:600;color:rgba(255,255,255,.72);background:none;border:0;cursor:pointer;padding:5px 9px;border-radius:8px;transition:.2s;line-height:1}
.lang__btn:hover{color:#fff}
.lang__btn.active{background:linear-gradient(90deg,var(--cyan),var(--teal));color:#06243f}

/* ============ Hero ============ */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;
  background:radial-gradient(120% 120% at 80% 0%,#0e3a5f 0%,#0b2545 55%,#081a33 100%);
  color:#fff;overflow:hidden;padding:120px 0 80px}
.hero__bg{position:absolute;inset:0;overflow:hidden}
.blob{position:absolute;border-radius:50%;filter:blur(60px);opacity:.5}
.blob--1{width:420px;height:420px;background:var(--cyan);top:-80px;right:-60px;animation:float 9s ease-in-out infinite}
.blob--2{width:360px;height:360px;background:var(--teal);bottom:-120px;left:-60px;animation:float 11s ease-in-out infinite reverse}
.blob--3{width:280px;height:280px;background:#1d6fa5;top:40%;left:45%;animation:float 13s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0) translateX(0)}50%{transform:translateY(-30px) translateX(20px)}}
.hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.eyebrow{display:inline-block;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.18);font-size:13px;letter-spacing:.5px;color:#cfeef2;margin-bottom:22px}
.hero__title{font-size:clamp(40px,6vw,68px);line-height:1.1;font-weight:800;letter-spacing:1px;margin-bottom:22px}
.hero__sub{font-size:18px;color:rgba(255,255,255,.82);max-width:560px;margin-bottom:32px}
.hero__sub strong{color:#fff}
.hero__actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:44px}
.hero__facts{list-style:none;display:flex;gap:36px;flex-wrap:wrap}
.hero__facts li{display:flex;flex-direction:column}
.hero__facts b{font-size:30px;font-weight:800;background:linear-gradient(90deg,var(--cyan),var(--teal));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__facts span{font-size:14px;color:rgba(255,255,255,.7)}

/* Hero 视觉 */
.hero__visual{position:relative;height:380px}
.orbit{position:absolute;inset:0;margin:auto;width:200px;height:200px;border-radius:50%;
  background:conic-gradient(from 0deg,var(--cyan),var(--teal),#1d6fa5,var(--cyan));
  display:grid;place-items:center;box-shadow:0 0 80px -10px rgba(0,194,203,.5);animation:spin 18s linear infinite}
.orbit__core{width:120px;height:120px;border-radius:50%;background:#0b2545;display:grid;place-items:center;
  font-size:24px;font-weight:800;color:#fff;box-shadow:inset 0 0 30px rgba(0,194,203,.4)}
@keyframes spin{to{transform:rotate(360deg)}}
.float-card{position:absolute;background:rgba(255,255,255,.96);color:var(--ink);padding:12px 16px;border-radius:14px;
  font-size:14px;font-weight:600;box-shadow:var(--shadow);display:flex;align-items:center;gap:9px;animation:bob 5s ease-in-out infinite}
.float-card .dot{width:9px;height:9px;border-radius:50%;background:var(--teal)}
.float-card .dot--cyan{background:var(--cyan)}
.float-card .dot--gold{background:var(--gold)}
.float-card--a{top:10%;left:0;animation-delay:0s}
.float-card--b{top:46%;right:-8px;animation-delay:1.5s}
.float-card--c{bottom:6%;left:12%;animation-delay:3s}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

.scroll-hint{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.7);font-size:24px;animation:bob 2s infinite;z-index:3}

/* ============ 通用区块 ============ */
.section{padding:96px 0}
.section--soft{background:var(--bg-soft)}
.section--dark{background:radial-gradient(120% 120% at 20% 0%,#0e3a5f 0%,#0b2545 60%,#081a33 100%);color:#fff}
.section__head{max-width:720px;margin:0 auto 56px;text-align:center}
.section__head--light .section__title,.section__head--light .section__lead{color:#fff}
.section__tag{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--cyan);
  text-transform:uppercase;margin-bottom:14px}
.section__title{font-size:clamp(28px,4vw,42px);font-weight:800;letter-spacing:.5px;margin-bottom:16px}
.section__lead{font-size:17px;color:var(--muted)}
.section--dark .section__lead{color:rgba(255,255,255,.75)}

/* ============ 关于 / 痛点 ============ */
.pain{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;margin-bottom:48px}
.pain__big{background:linear-gradient(135deg,#0b2545,#13496e);color:#fff;border-radius:var(--radius);padding:40px;
  box-shadow:var(--shadow);position:relative;overflow:hidden}
.pain__big::after{content:"";position:absolute;right:-40px;bottom:-40px;width:160px;height:160px;border-radius:50%;background:rgba(0,194,203,.18)}
.pain__num{font-size:64px;font-weight:800;background:linear-gradient(90deg,var(--cyan),var(--teal));-webkit-background-clip:text;background-clip:text;color:transparent;display:block;line-height:1}
.pain__num span{font-size:30px}
.pain__big p{margin-top:14px;font-size:16px;color:rgba(255,255,255,.85);position:relative;z-index:1}
.pain__list{display:flex;flex-direction:column;gap:14px}
.pain__item{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;font-weight:500;box-shadow:0 8px 24px -18px rgba(11,37,69,.4)}
.pain__item span{flex:none;width:26px;height:26px;border-radius:50%;background:#fff0e6;color:var(--gold);display:grid;place-items:center;font-weight:800}
.pain__item--hl{background:linear-gradient(135deg,#e8fbff,#dff7f1);border-color:#bfeee9;font-weight:600}
.pain__item--hl span{background:var(--cyan);color:#042}
.about__def{max-width:820px;margin:0 auto 56px;text-align:center;font-size:19px;color:var(--ink)}
.about__def strong{color:var(--navy-2)}
.triple{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.triple__card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 28px;box-shadow:var(--shadow);transition:transform .3s,border-color .3s}
.triple__card:hover{transform:translateY(-6px);border-color:var(--cyan)}
.triple__ico{width:54px;height:54px;border-radius:14px;background:linear-gradient(135deg,var(--cyan),var(--teal));color:#042;display:grid;place-items:center;font-size:24px;font-weight:800;margin-bottom:18px}
.triple__card h3{font-size:20px;margin-bottom:10px}
.triple__card p{color:var(--muted);font-size:15px}

/* ============ 核心业务 ============ */
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.biz{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.biz:hover{transform:translateY(-8px);box-shadow:0 26px 50px -22px rgba(11,37,69,.5)}
.biz__icon{width:60px;height:60px;border-radius:16px;background:linear-gradient(135deg,#0b2545,#13496e);color:#fff;display:grid;place-items:center;font-size:18px;font-weight:700;margin-bottom:18px;letter-spacing:1px}
.biz h3{font-size:19px;margin-bottom:10px}
.biz p{color:var(--muted);font-size:14.5px}

/* ============ 社群 ============ */
.community{display:grid;grid-template-columns:1.2fr .8fr;gap:50px;align-items:center}
.community__lead{font-size:17px;color:var(--muted);margin:16px 0 28px}
.community__lead strong{color:var(--navy-2)}
.split3{display:flex;flex-direction:column;gap:16px}
.split3__item{border-left:3px solid var(--cyan);padding:6px 0 6px 18px}
.split3__item h4{font-size:17px;margin-bottom:4px}
.split3__item p{color:var(--muted);font-size:14.5px}
.community__stats{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.stat-pill{background:linear-gradient(135deg,#0b2545,#13496e);color:#fff;border-radius:var(--radius);padding:26px;text-align:center;box-shadow:var(--shadow)}
.stat-pill b{display:block;font-size:34px;font-weight:800;background:linear-gradient(90deg,var(--cyan),var(--teal));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-pill span{font-size:14px;color:rgba(255,255,255,.78)}

/* ============ 平台数据 ============ */
.counters{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-bottom:40px}
.counter{text-align:center;padding:30px 18px;border-radius:var(--radius);background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12)}
.counter__num{display:block;font-size:48px;font-weight:800;background:linear-gradient(90deg,var(--cyan),var(--teal));-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.counter__label{display:block;margin-top:10px;font-size:15px;color:rgba(255,255,255,.78)}
.chips{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.chip{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);padding:10px 18px;border-radius:999px;font-size:14.5px;color:#e6f6f8}

/* ============ 核心竞争力 ============ */
.edge{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.edge__card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;box-shadow:var(--shadow);transition:transform .3s}
.edge__card:hover{transform:translateY(-6px)}
.edge__card h3{font-size:19px;margin-bottom:12px;color:var(--navy-2)}
.edge__card p{color:var(--muted);font-size:15px}
.edge__card--feature{grid-column:span 3;background:linear-gradient(135deg,#0b2545,#0e4a6e);color:#fff;border:0;position:relative;overflow:hidden}
.edge__card--feature h3{color:#fff;font-size:24px}
.edge__card--feature p{color:rgba(255,255,255,.85);font-size:16px;max-width:760px}
.edge__card--feature::after{content:"";position:absolute;right:-30px;top:-30px;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,rgba(0,194,203,.35),transparent 70%)}
.edge__badge{display:inline-block;background:linear-gradient(135deg,var(--cyan),var(--teal));color:#042;font-weight:700;font-size:13px;padding:5px 14px;border-radius:999px;margin-bottom:14px}

/* ============ 时间线 ============ */
.timeline{list-style:none;position:relative;max-width:820px;margin:0 auto;padding-left:0}
.timeline::before{content:"";position:absolute;left:18px;top:8px;bottom:8px;width:2px;background:linear-gradient(var(--cyan),var(--teal))}
.timeline__item{position:relative;padding:0 0 38px 60px}
.timeline__item:last-child{padding-bottom:0}
.timeline__item::before{content:"";position:absolute;left:9px;top:4px;width:20px;height:20px;border-radius:50%;background:#fff;border:4px solid var(--cyan);box-shadow:0 0 0 4px rgba(0,194,203,.15)}
.timeline__item--now::before{border-color:var(--gold);box-shadow:0 0 0 4px rgba(245,166,35,.2)}
.timeline__time{display:inline-block;font-weight:800;color:var(--cyan);font-size:15px;letter-spacing:1px;margin-bottom:4px}
.timeline__item h3{font-size:20px;margin-bottom:6px}
.timeline__item p{color:var(--muted);font-size:15px}

/* ============ 融资 ============ */
.finance{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.finance__ask{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:34px}
.finance__big{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:26px}
.finance__cell{text-align:center;background:rgba(255,255,255,.05);border-radius:14px;padding:18px 10px}
.finance__k{display:block;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:8px}
.finance__v{font-size:30px;font-weight:800;color:#fff}
.finance__v small{font-size:15px;font-weight:600;margin-left:2px;color:var(--cyanish,#cfeef2)}
.finance__note{font-size:15px;color:#cfeef2;margin-bottom:14px;font-weight:600}
.finance__use{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.finance__use li{background:linear-gradient(135deg,rgba(0,194,203,.18),rgba(45,212,191,.14));border:1px solid rgba(0,194,203,.3);border-radius:10px;padding:11px 8px;text-align:center;font-size:14px;font-weight:600;color:#e6f6f8}
.finance__cost h3{font-size:20px;margin-bottom:22px;color:#fff}
.cost{display:flex;flex-direction:column;gap:16px}
.cost__row{display:grid;grid-template-columns:80px 1fr 48px;align-items:center;gap:14px}
.cost__name{font-size:14px;color:rgba(255,255,255,.85)}
.cost__bar{height:12px;background:rgba(255,255,255,.1);border-radius:999px;overflow:hidden}
.cost__bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--cyan),var(--teal));border-radius:999px;transition:width 1.2s ease}
.cost__pct{font-size:14px;font-weight:700;color:#cfeef2;text-align:right}
.finance__src{margin-top:22px;font-size:12.5px;color:rgba(255,255,255,.5)}

/* ============ CTA ============ */
.cta{background:radial-gradient(120% 120% at 50% 0%,#0e4a6e 0%,#0b2545 60%,#081a33 100%);color:#fff;padding:90px 0;text-align:center}
.cta__inner{max-width:680px;margin:0 auto}
.cta h2{font-size:clamp(28px,4vw,40px);font-weight:800;margin-bottom:14px}
.cta p{font-size:17px;color:rgba(255,255,255,.82);margin-bottom:30px}
.cta__actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:34px}
.cta__thanks{font-size:15px;color:rgba(255,255,255,.6);font-style:italic}

/* ============ 页脚 ============ */
.footer{background:#06182e;color:#fff;padding:46px 0;text-align:center}
.footer__brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:12px}
.footer p{color:rgba(255,255,255,.65);font-size:14px}
.footer__copy{margin-top:8px;font-size:12.5px;color:rgba(255,255,255,.42)}
.footer__org{margin-top:6px;font-size:12.5px;color:rgba(255,255,255,.42)}
.footer__beian{margin-top:4px;font-size:12.5px}
.footer__beian a{color:rgba(255,255,255,.55);text-decoration:none;transition:color .2s}
.footer__beian a:hover{color:#fff}

/* ============ 滚动揭示动画 ============ */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:980px){
  .hero__inner{grid-template-columns:1fr}
  .hero__visual{height:300px;margin-top:10px}
  .pain,.community,.finance{grid-template-columns:1fr;gap:32px}
  .triple,.grid4{grid-template-columns:repeat(2,1fr)}
  .edge{grid-template-columns:repeat(2,1fr)}
  .edge__card--feature{grid-column:span 2}
}
@media (max-width:680px){
  .nav__links{position:fixed;top:72px;right:0;left:0;flex-direction:column;gap:0;background:rgba(11,37,69,.97);
    backdrop-filter:blur(10px);max-height:0;overflow:hidden;transition:max-height .35s ease;margin:0;padding:0}
  .nav__links.open{max-height:420px}
  .nav__links a{padding:15px 24px;border-bottom:1px solid rgba(255,255,255,.08);width:100%}
  .nav__cta{display:none}
  .nav__toggle{display:flex}
  .lang{margin-left:auto;padding:2px}
  .lang__btn{padding:5px 7px;font-size:12px}
  .grid4,.edge{grid-template-columns:1fr}
  .triple{grid-template-columns:1fr;gap:12px}
  .triple__card{display:grid;grid-template-columns:auto 1fr;grid-template-areas:"ico title" "ico desc";
    column-gap:14px;align-items:center;text-align:left;padding:16px 16px;box-shadow:0 8px 22px -18px rgba(11,37,69,.4)}
  .triple__ico{grid-area:ico;margin-bottom:0;width:46px;height:46px;border-radius:12px;font-size:20px;align-self:start}
  .triple__card h3{grid-area:title;font-size:17px;margin-bottom:4px}
  .triple__card p{grid-area:desc;font-size:13.5px;line-height:1.55}
  .edge__card--feature{grid-column:span 1}
  .counters{grid-template-columns:repeat(2,1fr);gap:16px}
  .counter__num{font-size:36px}
  .finance__big{grid-template-columns:1fr}
  .finance__use{grid-template-columns:repeat(2,1fr)}
  .section{padding:64px 0}
  .hero__facts{gap:22px}
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .blob,.orbit,.float-card,.scroll-hint{animation:none}
}