/* ============================================================
   xmj.app · 全新原创骨架「星河亮蓝」
   设计要点:胶囊按钮 + 玻璃拟态头部 + Bento 网格 + 渐变字;亮蓝/青双主色
   与站群其它骨架(元旦红金·端午青绿直角·深空紫霓虹)零复用
   ============================================================ */
:root{
  --p:#2563eb; --p-d:#1d4ed8; --p-l:#60a5fa; --p-pale:#eef4ff;
  --c:#06b6d4; --v:#7c3aed;
  --ink:#0b1220; --ink2:#455270; --ink3:#8593ad;
  --bg:#f6f9ff; --card:#ffffff; --line:#e3ebf6; --line2:#cfdcf0;
  --ok:#10b981; --warn:#f59e0b;
  --sh:0 1px 2px rgba(11,18,32,.04),0 6px 18px rgba(37,99,235,.06);
  --sh-hi:0 4px 10px rgba(11,18,32,.06),0 20px 46px rgba(37,99,235,.16);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --maxw:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);line-height:1.75;font-size:16px;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.28;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(31px,4.4vw,52px);letter-spacing:-.02em}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:clamp(17px,1.5vw,20px)}
p{margin:0 0 1em;color:var(--ink2)}
ul{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}
.sect{padding:78px 0;position:relative}
.sect.alt{background:#fff}
.sect.deep{background:linear-gradient(150deg,#0b1220,#132445 55%,#0e3a5c);color:#eaf1ff}
.sect.deep h2,.sect.deep h3,.sect.deep p,.sect.deep li,.sect.deep h4{color:#eaf1ff}
.sect.deep .sub{color:rgba(234,241,255,.72)}
.grad{background:linear-gradient(96deg,var(--p) 8%,var(--c) 62%,var(--v));-webkit-background-clip:text;background-clip:text;color:transparent}
.shead{margin-bottom:42px;max-width:760px}
.shead.center{margin-left:auto;margin-right:auto;text-align:center}
.shead .k{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  color:var(--p);background:var(--p-pale);border:1px solid #d8e6ff;border-radius:999px;padding:6px 14px;margin-bottom:14px}
.sect.deep .shead .k{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.18);color:#9fd0ff}
.shead .sub{font-size:16.5px;margin:10px 0 0}
.shead.center .sub{margin-left:auto;margin-right:auto}

/* 按钮(胶囊) */
.bt{display:inline-flex;align-items:center;gap:9px;border-radius:999px;padding:14px 30px;font-weight:800;font-size:15.5px;
  transition:.22s;border:1px solid transparent;cursor:pointer;white-space:nowrap}
.bt-p{background:linear-gradient(120deg,var(--p),var(--p-d));color:#fff;box-shadow:0 6px 20px rgba(37,99,235,.32)}
.bt-p:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(37,99,235,.42)}
.bt-o{border-color:var(--line2);color:var(--p);background:#fff}
.bt-o:hover{border-color:var(--p-l);background:var(--p-pale)}
.bt-g{background:linear-gradient(120deg,var(--c),#0ea5e9);color:#fff}
.btrow{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.btrow.center{justify-content:center}

/* 头部 */
.hd{position:sticky;top:0;z-index:80;background:rgba(246,249,255,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.hd-in{display:flex;align-items:center;gap:16px;height:72px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:19px;color:var(--ink)}
.brand .lg{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--p),var(--c));color:#fff;
  display:grid;place-items:center;font-size:13px;font-weight:800;letter-spacing:.02em;box-shadow:0 4px 14px rgba(37,99,235,.3)}
.brand small{display:block;font-size:10.5px;letter-spacing:.16em;color:var(--ink3);font-weight:700}
.nav{display:flex;gap:3px;margin-left:auto;flex-wrap:wrap}
.nav a{font-size:14.5px;font-weight:700;color:var(--ink2);padding:9px 13px;border-radius:999px;transition:.18s}
.nav a:hover{color:var(--p);background:var(--p-pale)}
.nav a.on{color:#fff;background:linear-gradient(120deg,var(--p),var(--p-d))}
.hd .bt{padding:11px 22px;font-size:14.5px;margin-left:8px}
.bg-btn{display:none;width:42px;height:42px;margin-left:auto;border-radius:12px;border:1px solid var(--line2);background:#fff;font-size:17px;color:var(--p)}

/* Hero */
.hero{position:relative;padding:66px 0 78px;overflow:hidden;background:
  radial-gradient(900px 420px at 88% -8%,rgba(6,182,212,.16),transparent),
  radial-gradient(760px 380px at 4% 12%,rgba(37,99,235,.15),transparent),var(--bg)}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(37,99,235,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(37,99,235,.055) 1px,transparent 1px);
  background-size:44px 44px;mask-image:radial-gradient(circle at 50% 30%,#000,transparent 72%)}
.hero-in{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:52px;align-items:center}
.pillow{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line2);border-radius:999px;
  padding:7px 16px;font-size:13px;font-weight:700;color:var(--p);margin-bottom:18px;box-shadow:var(--sh)}
.pillow i{width:7px;height:7px;border-radius:50%;background:var(--ok);font-style:normal}
.hero h1{margin-bottom:14px}
.hero .lead{font-size:17.5px;max-width:620px;margin-bottom:26px}
.meta{display:flex;gap:20px;flex-wrap:wrap;margin-top:20px;font-size:13.5px;color:var(--ink3);font-weight:600}
.meta b{color:var(--p)}
.shot{position:relative}
.shot .dev{background:#fff;border:1px solid var(--line);border-radius:22px;padding:10px;box-shadow:var(--sh-hi)}
.shot .dev img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:14px}
.shot .float{position:absolute;left:-12px;bottom:30px;background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:13px 18px;box-shadow:var(--sh-hi)}
.shot .float .t{font-size:11.5px;color:var(--ink3);font-weight:700}
.shot .float .v{font-weight:800;color:var(--p);font-size:16px}
.shot .float .badge{position:absolute;right:-10px;top:-10px;background:var(--ok);color:#fff;font-size:11px;font-weight:800;
  border-radius:999px;padding:3px 9px}

/* 滚动标签条 */
.ticker{overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff;padding:14px 0}
.ticker .track{display:flex;gap:14px;width:max-content;animation:slide 26s linear infinite}
.ticker span{font-size:14px;font-weight:700;color:var(--ink2);background:var(--p-pale);border:1px solid #dce8ff;
  border-radius:999px;padding:7px 16px;white-space:nowrap}
@keyframes slide{to{transform:translateX(-50%)}}
@media(prefers-reduced-motion:reduce){.ticker .track{animation:none}}

/* 统计 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stats .s{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px 20px;box-shadow:var(--sh);position:relative;overflow:hidden}
.stats .s::after{content:"";position:absolute;left:0;top:0;height:3px;width:100%;background:linear-gradient(90deg,var(--p),var(--c))}
.stats .s .v{font-size:30px;font-weight:800;background:linear-gradient(96deg,var(--p),var(--c));-webkit-background-clip:text;background-clip:text;color:transparent}
.stats .s .t{font-size:13.5px;color:var(--ink3);font-weight:600;margin-top:2px}

/* Bento */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.bento .b{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px 24px;box-shadow:var(--sh);transition:.24s}
.bento .b:hover{transform:translateY(-3px);box-shadow:var(--sh-hi);border-color:var(--line2)}
.bento .b.wide{grid-column:span 2}
.bento .b.dark{background:linear-gradient(140deg,#0b1220,#16305a);border-color:transparent;color:#eaf1ff}
.bento .b.dark h3,.bento .b.dark p,.bento .b.dark li{color:#eaf1ff}
.bento .b.dark p{opacity:.78}
.bento .b .ic{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;font-size:19px;
  background:var(--p-pale);color:var(--p);margin-bottom:14px}
.bento .b.dark .ic{background:rgba(255,255,255,.12);color:#7dd3fc}
.bento .b h3{font-size:18px;margin-bottom:7px}
.bento .b p{font-size:14.8px;margin:0}

/* 步骤 */
.steps{display:grid;gap:14px}
.steps .st{display:grid;grid-template-columns:56px 1fr;gap:18px;align-items:start;background:#fff;border:1px solid var(--line);
  border-radius:16px;padding:20px 22px;box-shadow:var(--sh)}
.steps .st .n{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;font-weight:800;font-size:15px;
  background:linear-gradient(135deg,var(--p),var(--c));color:#fff}
.steps .st h3{font-size:17px;margin-bottom:4px}
.steps .st p{font-size:14.8px;margin:0}

/* 对比表 */
.cmp{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border:1px solid var(--line);
  border-radius:18px;overflow:hidden;box-shadow:var(--sh);font-size:14.8px}
.cmp th,.cmp td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line)}
.cmp thead th{background:linear-gradient(120deg,var(--p),var(--p-d));color:#fff;font-size:14.5px}
.cmp tbody tr:last-child td{border-bottom:0}
.cmp td:first-child{font-weight:800;color:var(--p)}
.cmp tbody tr:hover td{background:#f8fbff}

/* 口碑 */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.quotes .q{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 22px;box-shadow:var(--sh);position:relative}
.quotes .q .rk{color:var(--warn);font-size:14px;letter-spacing:2px;margin-bottom:8px}
.quotes .q .tx{font-size:14.8px;color:var(--ink2);min-height:74px}
.quotes .q .au{margin-top:14px;font-size:14px;font-weight:800;color:var(--p)}
.quotes .q .au span{display:block;font-size:12.5px;color:var(--ink3);font-weight:600}

/* 图标网格 */
.igrid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.igrid .i{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px 18px;text-align:center;box-shadow:var(--sh);transition:.22s}
.igrid .i:hover{transform:translateY(-3px)}
.igrid .i .c{width:50px;height:50px;margin:0 auto 12px;border-radius:16px;display:grid;place-items:center;font-size:21px;
  background:var(--p-pale);color:var(--p)}
.igrid .i h4{font-size:16px;margin-bottom:5px}
.igrid .i p{font-size:14px;margin:0}

/* 分栏图文 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;padding:22px 0}
.split.rev .sx{order:2}
.split .sn{font-family:var(--mono);font-size:13px;font-weight:800;letter-spacing:.16em;color:var(--c);margin-bottom:8px}
.split h3{margin-bottom:8px}
.split p{font-size:15px}
.split .panel{background:linear-gradient(140deg,#fff,#f3f8ff);border:1px solid var(--line);border-radius:20px;padding:24px 22px;box-shadow:var(--sh)}
.split .panel li{font-size:14.8px;padding-left:22px;position:relative;margin-bottom:9px;color:var(--ink2)}
.split .panel li:last-child{margin-bottom:0}
.split .panel li::before{content:"";position:absolute;left:4px;top:9px;width:8px;height:8px;border-radius:3px;
  background:linear-gradient(135deg,var(--p),var(--c))}

/* 公告 */
.notice{display:flex;gap:15px;align-items:flex-start;background:linear-gradient(120deg,#fff7e8,#fffdf7);
  border:1px solid #f6e0b4;border-radius:16px;padding:20px 22px;box-shadow:var(--sh)}
.notice .i{width:38px;height:38px;flex:none;border-radius:12px;display:grid;place-items:center;background:#fff;color:var(--warn);font-weight:800}
.notice strong{display:block;font-size:15.5px;color:var(--ink);margin-bottom:3px}
.notice p{font-size:14.5px;margin:0}

/* 时间轴 */
.tl{position:relative;padding-left:34px}
.tl::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--p),var(--c),transparent)}
.tl .n{position:relative;padding-bottom:28px}
.tl .n:last-child{padding-bottom:0}
.tl .n::before{content:"";position:absolute;left:-30px;top:6px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:3px solid var(--p);box-shadow:0 0 0 4px rgba(37,99,235,.12)}
.tl .n .d{font-family:var(--mono);font-size:12.5px;font-weight:800;color:var(--c);letter-spacing:.06em}
.tl .n h3{font-size:17px;margin:3px 0 5px}
.tl .n p{font-size:14.8px;margin:0}

/* 标签云 */
.tags2{display:flex;flex-wrap:wrap;gap:11px}
.tags2.center{justify-content:center}
.tags2 a{font-size:14px;font-weight:700;color:var(--p);background:#fff;border:1px solid var(--line2);
  border-radius:999px;padding:9px 18px;transition:.2s}
.tags2 a:hover{background:linear-gradient(120deg,var(--p),var(--c));color:#fff;border-color:transparent}

/* 两栏对照 */
.dual{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.dual .d{border-radius:18px;padding:24px 22px;border:1px solid var(--line);background:#fff;box-shadow:var(--sh)}
.dual .d.a{border-top:3px solid var(--ok)}
.dual .d.b{border-top:3px solid var(--warn)}
.dual .d h3{font-size:17px;display:flex;align-items:center;gap:8px}
.dual .d ul{display:grid;gap:8px;margin-top:10px}
.dual .d li{font-size:14.6px;color:var(--ink2);padding-left:20px;position:relative}
.dual .d li::before{content:"✓";position:absolute;left:0;font-weight:800;color:var(--ok)}
.dual .d.b li::before{content:"!";color:var(--warn)}

/* 问答 */
.faq{display:grid;gap:12px;max-width:900px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh);overflow:hidden}
.faq summary{cursor:pointer;list-style:none;padding:18px 22px;font-weight:800;font-size:15.5px;display:flex;gap:12px;align-items:flex-start}
.faq summary::-webkit-details-marker{display:none}
.faq summary .qn{flex:none;font-family:var(--mono);font-size:13px;font-weight:800;color:var(--c);padding-top:2px}
.faq details[open] summary{border-bottom:1px solid var(--line)}
.faq .an{padding:16px 22px 20px 22px;font-size:14.8px;color:var(--ink2)}

/* CTA */
.cta{background:linear-gradient(135deg,#1d4ed8,#2563eb 40%,#06b6d4);border-radius:24px;padding:52px 38px;text-align:center;
  color:#fff;position:relative;overflow:hidden;box-shadow:0 20px 50px rgba(37,99,235,.28)}
.cta::after{content:"";position:absolute;right:-70px;top:-70px;width:280px;height:280px;border-radius:50%;background:rgba(255,255,255,.14)}
.cta h2,.cta p{color:#fff;position:relative}
.cta p{max-width:660px;margin:0 auto 26px;opacity:.92}
.cta .btrow{position:relative;justify-content:center}
.cta .bt-o{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.4);color:#fff}
.cta .bt-o:hover{background:rgba(255,255,255,.24)}

/* 页脚 */
.ft{background:#080f1d;color:rgba(234,241,255,.66);padding:54px 0 22px;font-size:14.4px}
.ft-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:30px}
.ft h4{color:#9fd0ff;font-size:14px;margin-bottom:13px;letter-spacing:.05em}
.ft a{color:rgba(234,241,255,.66)}
.ft a:hover{color:#fff}
.ft .lk{display:grid;gap:9px}
.ft .fb{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:#fff}
.ft .fb .lg{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--p),var(--c));display:grid;place-items:center;font-size:12px}
.ft .btm{margin-top:32px;padding-top:18px;border-top:1px solid rgba(159,208,255,.16);font-size:12.8px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* 动效 */
.up{opacity:0;transform:translateY(20px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.up.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.up{opacity:1;transform:none;transition:none}}

/* 响应式 */
@media(max-width:1024px){
  .hero-in{grid-template-columns:1fr;gap:34px}
  .bento,.igrid,.stats{grid-template-columns:repeat(2,1fr)}
  .bento .b.wide{grid-column:span 2}
  .ft-grid{grid-template-columns:1fr 1fr}
  .nav{display:none;position:absolute;left:0;right:0;top:72px;background:#fff;border-bottom:1px solid var(--line);padding:10px;flex-direction:column;box-shadow:var(--sh-hi)}
  .nav.open{display:flex}
  .hd .bt{display:none}
  .bg-btn{display:grid;place-items:center}
}
@media(max-width:760px){
  .sect{padding:54px 0}
  .bento,.igrid,.stats,.quotes,.split,.dual{grid-template-columns:1fr}
  .bento .b.wide{grid-column:span 1}
  .split.rev .sx{order:0}
  .cta{padding:38px 20px}
  .shot .float{position:static;margin-top:12px;display:inline-block}
  .ft-grid{grid-template-columns:1fr}
  h1{font-size:30px}
}