:root{
  --bg:#F1F3F7;
  --bg2:#FFFFFF;
  --bg3:#E8ECF4;
  --card:#FFFFFF;
  --line:#D5DCEA;
  --ink:#12172B;
  --ink2:#525C78;
  --ink3:#828CA6;
  --pri:#2B5CE6;
  --pri-l:#5B85F5;
  --pri-d:#1B3FB0;
  --pri-t:#E6EBFB;
  --deep:#16233F;
  --deep-d:#0B1428;
  --deep-t:#E3E8F2;
  --cyan:#6EC8F0;
  --cyan-d:#3AA0D0;
  --shadow:0 12px 30px rgba(22,35,63,.10);
  --shadow-sm:0 6px 16px rgba(22,35,63,.07);
  --r:14px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",
    "Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--pri-d);text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0}
li{list-style:none}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}

.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:12px 22px;border-radius:11px;
  background:linear-gradient(120deg,var(--pri),var(--pri-d));
  color:#fff;font-weight:600;font-size:15px;
  box-shadow:0 8px 20px rgba(43,92,230,.26);
  transition:transform .18s ease,box-shadow .18s ease;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(43,92,230,.34);color:#fff}
.btn--sm{padding:9px 16px;font-size:14px;border-radius:10px}
.btn--lg{padding:15px 30px;font-size:16.5px;border-radius:13px}
.btn--line{background:#fff;color:var(--pri-d);box-shadow:none;border:1px solid var(--line)}
.btn--line:hover{color:var(--pri-d);box-shadow:var(--shadow-sm)}
.btn svg{flex:0 0 auto}

.top{position:sticky;top:0;z-index:30;background:rgba(241,243,247,.94);border-bottom:1px solid var(--line)}
.top[data-solid]{background:#fff;box-shadow:0 6px 20px rgba(22,35,63,.08)}
.top__in{max-width:1140px;margin:0 auto;padding:10px 20px;display:flex;align-items:center;gap:14px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand img{width:36px;height:36px;border-radius:9px}
.brand b{font-size:18px;letter-spacing:.3px;color:var(--ink)}
.nav{margin-left:auto;display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{padding:8px 12px;border-radius:9px;color:var(--ink2);font-size:14.5px;white-space:nowrap}
.nav a:hover{color:var(--pri-d);background:var(--pri-t)}
.nav a[aria-current]{background:var(--pri-t);color:var(--pri-d);font-weight:600}
.top .btn{flex:0 0 auto;color:#fff}
.top .btn:hover{color:#fff}

.hero{position:relative;background:#fff;overflow:hidden}
.hero__bg{
  position:absolute;inset:0;
  background:
    radial-gradient(560px 300px at 46% 8%,rgba(110,200,240,.26),rgba(110,200,240,0) 72%),
    linear-gradient(152deg,#1D2F58,#16233F 48%,#0B1428);
  clip-path:polygon(0 0,63% 0,55% 100%,0 100%);
}
.hero__in{
  position:relative;
  max-width:1140px;margin:0 auto;padding:58px 20px 66px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center;
}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:#B9C8E8;
  padding:5px 13px;border-radius:999px;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);
  margin-bottom:16px;
}
.kicker svg{flex:0 0 auto}
.hero h1{font-size:42px;line-height:1.24;color:#fff;margin:0 0 16px}
.hero__lead{color:#C2CCE5;font-size:16px;line-height:1.95;max-width:560px;margin:0 0 26px}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.hero__cta .btn--line{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.22);color:#EAF0FF}
.hero__cta .btn--line:hover{background:rgba(255,255,255,.18);color:#fff}
.hero__meta{margin-top:20px;display:flex;gap:18px;flex-wrap:wrap;font-size:13.5px;color:#93A2C2}
.hero__meta span{display:inline-flex;align-items:center;gap:6px}
.hero__shot{margin:0;max-width:308px;justify-self:end;width:100%}
.hero__shot img{width:100%;height:auto;border-radius:18px;box-shadow:0 24px 48px rgba(4,9,22,.5),0 0 0 6px rgba(255,255,255,.08)}

.brick{
  height:18px;background-color:var(--bg3);
  background-image:
    linear-gradient(135deg,rgba(43,92,230,.30) 25%,rgba(0,0,0,0) 25%,rgba(0,0,0,0) 75%,rgba(43,92,230,.30) 75%),
    linear-gradient(45deg,rgba(110,200,240,.36) 25%,rgba(0,0,0,0) 25%,rgba(0,0,0,0) 75%,rgba(110,200,240,.36) 75%);
  background-size:24px 18px;
  background-position:0 0,12px 0;
}
.brick--dark{background-color:#101A30}

.sec{padding:62px 0}
.sec--alt{background:var(--bg2)}
.sec__h{display:flex;align-items:center;gap:14px;margin:0 0 12px}
.sec__no{
  flex:0 0 auto;width:42px;height:46px;display:grid;place-items:center;
  font-size:14px;font-weight:700;color:#fff;letter-spacing:.5px;
  background:linear-gradient(140deg,var(--pri),var(--pri-d));
  clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);
}
.sec__h h2{margin:0;font-size:27px;line-height:1.32;color:var(--ink)}
.sub{margin:0 0 30px;color:var(--ink2);font-size:15px;line-height:1.85}
.sec__h + .sub{margin-top:10px}
.sec__h + .rail,.sec__h + .axis,.sec__h + .shots,.sec__h + .cards,.sec__h + .faq,.sec__h + .prose{margin-top:26px}

.rail{position:relative;padding:6px 0 4px}
.rail__line{
  position:absolute;left:10%;right:10%;top:25px;height:3px;border-radius:2px;
  background:linear-gradient(90deg,var(--pri),var(--cyan));
}
.rail__in{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.fact{text-align:center}
.fact i{
  display:block;width:16px;height:16px;margin:12px auto 20px;border-radius:50%;
  background:#fff;box-shadow:0 0 0 5px rgba(43,92,230,.16);
}
.fact b{display:block;font-size:26px;line-height:1.2;color:var(--pri-d)}
.fact span{display:block;margin-top:8px;font-size:13.5px;color:var(--ink2);line-height:1.65}

.axis{position:relative;display:grid;gap:22px;padding-left:52px}
.axis::before{
  content:"";position:absolute;left:15px;top:8px;bottom:8px;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--pri),var(--cyan));
}
.fx{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r);padding:22px 24px;box-shadow:var(--shadow-sm);
}
.fx::before{
  content:"";position:absolute;left:-45px;top:26px;width:16px;height:18px;
  background:linear-gradient(140deg,var(--pri),var(--pri-d));
  clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);
}
.fx::after{
  content:"";position:absolute;right:18px;top:18px;width:20px;height:22px;
  background:linear-gradient(140deg,rgba(43,92,230,.18),rgba(110,200,240,.30));
  clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);
}
.fx h3{margin:0 0 10px;font-size:19px;color:var(--ink)}
.fx p{color:var(--ink2);font-size:15px;line-height:1.92}
.fx p + p{margin-top:9px}
.fx__tags{margin-top:14px;display:flex;gap:8px;flex-wrap:wrap}
.tag{
  font-size:12.5px;color:var(--pri-d);background:var(--pri-t);
  border:1px solid #C9D6F8;border-radius:999px;padding:3px 11px;
}

.shots{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;align-items:start}
.shot{margin:0}
.shot__frame{border-radius:15px;overflow:hidden;background:#0B1428;box-shadow:var(--shadow)}
.shot__frame img{width:100%;height:auto}
.shot__cap{display:flex;gap:10px;margin-top:12px}
.shot__no{
  flex:0 0 auto;font-size:12.5px;font-weight:700;color:var(--pri-d);
  background:var(--pri-t);border-radius:7px;padding:2px 8px;line-height:19px;height:23px;
}
.shot__cap p{margin:0;font-size:13.5px;color:var(--ink2);line-height:1.7}

.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.entry{
  position:relative;display:block;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r);padding:24px 24px 24px 30px;box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease;
}
.entry::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:5px;border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--pri),var(--cyan));
}
.entry:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.entry h3{margin:0 0 8px;font-size:18.5px;color:var(--ink)}
.entry p{color:var(--ink2);font-size:14.5px;line-height:1.85}
.entry b{display:inline-block;margin-top:12px;font-size:14px;color:var(--pri-d)}

.voice{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.vc{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:22px 22px 20px;box-shadow:var(--shadow-sm);position:relative;
}
.vc::after{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:4px;border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--cyan),var(--pri));
}
.vc__who{display:flex;align-items:center;gap:11px;margin-bottom:12px}
.vc__av{
  width:38px;height:38px;border-radius:50%;flex:0 0 auto;
  display:grid;place-items:center;font-size:15px;font-weight:700;color:#fff;
  background:linear-gradient(140deg,var(--pri-l),var(--pri-d));
}
.vc__who b{display:block;font-size:14.5px;color:var(--ink);line-height:1.4}
.vc__who em{font-style:normal;font-size:12.5px;color:var(--ink3)}
.vc p{color:var(--ink2);font-size:14.5px;line-height:1.9}
.vc__score{margin-top:14px;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink2)}
.stars{display:inline-flex;gap:2px;color:#E8A33D;letter-spacing:1px}

.faq{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 20px;align-items:start}
.faq details{
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:0 18px;box-shadow:var(--shadow-sm);
}
.faq details[open]{border-color:#BFD0F6}
.faq summary{
  cursor:pointer;list-style:none;padding:15px 26px 15px 0;position:relative;
  font-size:15.5px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:2px;top:22px;width:9px;height:9px;
  border-right:2px solid var(--pri);border-bottom:2px solid var(--pri);
  transform:rotate(45deg);transition:transform .2s ease;
}
.faq details[open] summary::after{transform:rotate(-135deg);top:25px}
.faq .ans{padding:0 0 16px;color:var(--ink2);font-size:14.5px;line-height:1.9}
.faq .ans a{text-decoration:underline}

.cta{background:linear-gradient(150deg,#1D2F58,#16233F 52%,#0B1428);color:#fff;padding:58px 0}
.cta h2{font-size:27px;color:#fff;margin:0 0 14px}
.cta p{color:#BBC6E2;font-size:15.5px;line-height:1.9;max-width:640px}
.cta__in{display:flex;gap:30px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta__box{max-width:660px}
.cta .btn{background:linear-gradient(120deg,var(--pri-l),var(--cyan-d));color:#08111F}
.cta .btn:hover{color:#08111F}
.cta__meta{margin-top:16px;font-size:13.5px;color:#8C9BBB}

.foot{background:#0B1428;color:#97A4C0;padding:52px 0 26px;font-size:14px}
.foot__in{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
.foot__brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.foot__brand img{width:34px;height:34px;border-radius:9px}
.foot__brand b{color:#fff;font-size:17px}
.foot p{line-height:1.9;color:#8C99B5}
.foot h3{font-size:15px;color:#fff;margin:0 0 12px}
.foot li{margin:0 0 9px}
.foot a{color:#A9B6D2}
.foot a:hover{color:#fff}
.foot__disc{
  margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);
  color:#7F8CA8;font-size:13.5px;line-height:1.85;
}
.foot__copy{margin-top:10px;color:#6E7B96;font-size:13px}

.page-hero{
  position:relative;padding:52px 0 46px;
  background:
    radial-gradient(520px 260px at 84% 6%,rgba(110,200,240,.24),rgba(110,200,240,0) 72%),
    linear-gradient(150deg,#1D2F58,#16233F 52%,#0B1428);
}
.page-hero h1{font-size:34px;color:#fff;line-height:1.3;margin:0 0 14px}
.page-hero p{color:#C2CCE5;font-size:16px;line-height:1.95;max-width:800px}
.crumb{margin-top:18px;font-size:13.5px;color:#8FA0C2}
.crumb a{color:#B9C8E8}
.crumb a:hover{color:#fff}

.prose{max-width:1000px}
.prose h2{font-size:24px;color:var(--ink);margin:38px 0 14px;padding-left:16px;position:relative}
.prose h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;border-radius:3px;
  background:linear-gradient(180deg,var(--pri),var(--cyan));
}
.prose h3{font-size:18.5px;color:var(--ink);margin:26px 0 10px}
.prose p{color:var(--ink2);font-size:15.5px;line-height:2;margin:0 0 14px}
.prose ul{margin:0 0 16px}
.prose li{
  position:relative;padding-left:20px;margin:0 0 10px;
  color:var(--ink2);font-size:15.5px;line-height:1.95;
}
.prose li::before{
  content:"";position:absolute;left:2px;top:12px;width:6px;height:6px;border-radius:50%;
  background:var(--pri);
}
.prose li b,.prose p b{color:var(--ink)}
.prose a{text-decoration:underline}

.steps{display:grid;gap:18px;margin:0 0 22px;counter-reset:st}
.stp{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:22px 24px 22px 74px;box-shadow:var(--shadow-sm);
}
.stp::before{
  counter-increment:st;content:counter(st,decimal-leading-zero);
  position:absolute;left:20px;top:20px;width:38px;height:42px;
  display:grid;place-items:center;font-size:14px;font-weight:700;color:#fff;
  background:linear-gradient(140deg,var(--pri),var(--pri-d));
  clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);
}
.stp h3{margin:0 0 8px;font-size:18px;color:var(--ink)}
.stp p{color:var(--ink2);font-size:15px;line-height:1.92}
.stp p + p{margin-top:8px}
.stp__tip{
  margin-top:12px;padding:11px 14px;border-radius:10px;background:var(--pri-t);
  color:var(--pri-d);font-size:14px;line-height:1.8;
}

.tbl-scroll{overflow-x:auto;margin:0 0 20px}
.tbl{width:100%;min-width:560px;border-collapse:collapse;background:var(--card);
  border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:14.5px}
.tbl th,.tbl td{padding:12px 15px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;line-height:1.8}
.tbl th{background:var(--deep-t);color:var(--ink);font-weight:600;white-space:nowrap}
.tbl td{color:var(--ink2)}
.tbl tr:last-child td{border-bottom:0}
.prose .tbl-cap{color:var(--ink);font-size:14.5px;font-weight:600;margin:0 0 10px}
.prose .tbl-note{color:var(--ink3);font-size:13.5px;line-height:1.8;margin:-8px 0 20px}

.note{
  background:var(--card);border:1px solid var(--line);border-left:5px solid var(--pri);
  border-radius:12px;padding:18px 22px;margin:0 0 22px;box-shadow:var(--shadow-sm);
}
.note b{display:block;color:var(--ink);font-size:15.5px;margin-bottom:6px}
.note p{color:var(--ink2);font-size:14.8px;line-height:1.9;margin:0}
.note a{text-decoration:underline}

.pager{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:44px}
.pager a{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:18px 20px;box-shadow:var(--shadow-sm);
}
.pager a:hover{border-color:#BFD0F6}
.pager b{display:block;color:var(--ink);font-size:15.5px;margin-bottom:5px}
.pager span{color:var(--ink3);font-size:13.5px;line-height:1.7}

@keyframes swingIn{
  from{opacity:0;transform:rotate(-2deg) scale(.986)}
  to{opacity:1;transform:none}
}
.swing{animation:swingIn .58s cubic-bezier(.24,.72,.28,1) both;transform-origin:left center}
.swing.d1{animation-delay:.09s}
.swing.d2{animation-delay:.17s}
@media (prefers-reduced-motion:reduce){
  .swing{animation:none;opacity:1;transform:none}
}

@media (max-width:980px){
  .hero__bg{clip-path:none;inset:0}
  .hero__in{grid-template-columns:1fr;gap:34px;padding:46px 20px 52px}
  .hero h1{font-size:34px}
  .hero__shot{max-width:300px;justify-self:center}
  .shots{grid-template-columns:repeat(3,1fr);gap:20px}
  .voice{grid-template-columns:1fr}
  .faq{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
  .foot__in{grid-template-columns:1fr 1fr}
  .pager{grid-template-columns:1fr 1fr}
  .page-hero h1{font-size:29px}
}
@media (max-width:620px){
  body{font-size:15.5px}
  .top__in{flex-wrap:wrap;gap:8px 10px}
  .nav{order:3;flex:1 0 100%}
  .nav a{padding:7px 10px;font-size:14px}
  .top .btn{margin-left:auto}
  .sec{padding:46px 0}
  .sec__h h2{font-size:22px}
  .sec__no{width:36px;height:40px;font-size:13px}
  .hero h1{font-size:28px}
  .hero__lead{font-size:15px}
  .hero__shot{max-width:290px}
  .hero__meta{gap:12px;font-size:13px}
  .rail__in{grid-template-columns:repeat(2,1fr);gap:18px 12px}
  .rail__line{display:none}
  .shots{grid-template-columns:repeat(2,1fr);gap:16px}
  .axis{padding-left:44px}
  .axis::before{left:12px}
  .fx{padding:18px 18px}
  .fx::before{left:-38px;top:22px}
  .stp{padding:20px 18px 20px 66px}
  .stp::before{left:16px;top:18px;width:34px;height:38px}
  .cta h2,.prose h2{font-size:21px}
  .page-hero{padding:38px 0 34px}
  .page-hero h1{font-size:24px}
  .page-hero p{font-size:15px}
  .pager{grid-template-columns:1fr}
  .foot__in{grid-template-columns:1fr;gap:26px}
  .btn--lg{padding:14px 24px;font-size:15.5px}
}