/* ============================================================
   璞修洞察 PUXIU · 官网样式
   纯静态、零外部依赖；深藏青 + 暖金，呼应公司介绍视觉体系
   ============================================================ */
:root{
  --navy:#0A2444; --navy2:#123862; --blue:#2F5597; --blue2:#5C8AD8;
  --gold:#D9B26A; --gold2:#E8C883;
  --ink:#16243B; --mute:#5D6B84; --line:#E2E9F3;
  --bg:#FFFFFF; --soft:#F5F8FD;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --serif:Georgia,"Times New Roman",serif;
  --shadow:0 16px 40px rgba(10,36,68,.09);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:78px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,ul{margin:0}
ul{padding:0;list-style:none}
img{max-width:100%}
.container{width:min(1180px,92%);margin:0 auto}
.skip{position:absolute;left:-9999px;top:0;z-index:99;background:var(--gold);color:var(--navy);padding:10px 18px;border-radius:0 0 8px 0}
.skip:focus{left:0}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}

/* ---------------- Header ---------------- */
.hdr{position:fixed;inset:0 0 auto;z-index:50;height:76px;background:transparent;transition:background .3s,box-shadow .3s,height .3s}
.hdr.scrolled{height:68px;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);box-shadow:0 2px 20px rgba(10,36,68,.10)}
.hdr-in{height:100%;display:flex;align-items:center;justify-content:space-between;gap:32px}
.logo{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto}
.logo-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:9px;background:linear-gradient(140deg,var(--gold2),var(--gold));color:var(--navy);font:700 13px/1 var(--sans);letter-spacing:.5px;box-shadow:0 4px 14px rgba(217,178,106,.28)}
.logo-txt{display:flex;flex-direction:column;line-height:1.15}
.logo-txt b{font-size:17px;letter-spacing:2.6px;color:#fff;transition:color .3s}
.logo-txt small{font-size:11px;letter-spacing:2px;color:rgba(255,255,255,.62);transition:color .3s}
.hdr.scrolled .logo-txt b{color:var(--navy)}
.hdr.scrolled .logo-txt small{color:var(--mute)}
.nav{display:flex;align-items:center;gap:30px}
.nav>a{font-size:14px;font-weight:500;color:rgba(255,255,255,.86);transition:color .25s;position:relative;white-space:nowrap}
.nav>a:not(.nav-cta)::after{content:"";position:absolute;left:0;right:100%;bottom:-6px;height:2px;background:var(--gold);transition:right .25s}
.nav>a:not(.nav-cta):hover::after,.nav>a.active:not(.nav-cta)::after{right:0}
.nav>a:hover{color:#fff}
.nav-cta{display:inline-flex;align-items:center;gap:7px;padding:9px 18px;border-radius:7px;background:var(--gold);color:var(--navy)!important;font-weight:700;transition:transform .2s,background .2s}
.nav-cta:hover{background:var(--gold2);transform:translateY(-2px)}
.hdr.scrolled .nav>a:not(.nav-cta){color:var(--ink)}
.hdr.scrolled .nav>a:not(.nav-cta):hover{color:var(--blue)}
.menu-btn{display:none;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;border:0;background:transparent;cursor:pointer;padding:8px}
.menu-btn span{display:block;height:2px;border-radius:2px;background:#fff;transition:.25s}
.hdr.scrolled .menu-btn span{background:var(--navy)}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------------- Hero ---------------- */
.hero{position:relative;isolation:isolate;background:linear-gradient(135deg,#071E38 0%,#0E3059 52%,#123B6B 100%);color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:-1;pointer-events:none}
.hero-bg::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:64px 64px;mask-image:linear-gradient(to bottom,#000 0%,transparent 88%)}
.hero-bg::after{content:"";position:absolute;width:760px;height:760px;right:-160px;top:-280px;border-radius:50%;background:radial-gradient(circle,rgba(92,138,216,.34),transparent 66%)}
.hero-in{position:relative;padding:178px 0 92px;max-width:860px;margin-left:max(4%,calc((100% - 1180px)/2))}
.eyebrow{display:flex;align-items:center;gap:14px;font-size:12px;font-weight:700;letter-spacing:3px;color:var(--blue);text-transform:uppercase;margin-bottom:18px}
.eyebrow-light{color:var(--gold)}
.eb-line{display:inline-block;width:46px;height:1px;background:currentColor;opacity:.7}
.hero h1{font-size:clamp(38px,5.6vw,70px);line-height:1.2;letter-spacing:-2px;font-weight:700;margin-bottom:26px}
.hero h1 em{font-style:normal;background:linear-gradient(96deg,var(--gold2),var(--gold));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{max-width:660px;font-size:17px;line-height:1.9;color:rgba(255,255,255,.78);margin-bottom:36px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:44px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:13px 26px;border-radius:8px;font-size:14px;font-weight:700;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-3px)}
.btn-primary{background:var(--gold);color:var(--navy);box-shadow:0 8px 24px rgba(217,178,106,.24)}
.btn-primary:hover{background:var(--gold2)}
.btn-ghost{border:1px solid rgba(255,255,255,.38);color:#fff;background:rgba(255,255,255,.05)}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff}
.hero-tags{display:flex;align-items:center;gap:16px;font-size:13px;letter-spacing:2px;color:rgba(255,255,255,.62)}
.hero-tags i{width:4px;height:4px;border-radius:50%;background:var(--gold)}
.hero-stats{position:relative;border-top:1px solid rgba(255,255,255,.13);background:rgba(3,18,36,.28)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:28px 18px 30px;border-right:1px solid rgba(255,255,255,.10)}
.stat:last-child{border-right:0}
.stat b{display:block;font:400 34px/1.1 var(--serif);color:var(--gold2);letter-spacing:-1px}
.stat b small{font:600 13px/1 var(--sans);margin-left:5px;letter-spacing:0}
.stat span{display:block;margin-top:9px;font-size:13px;color:rgba(255,255,255,.68)}

/* ---------------- Section 通用 ---------------- */
.sec{padding:100px 0}
.sec-white{background:#fff}
.sec-soft{background:var(--soft)}
.sec-dark{background:linear-gradient(160deg,#092040,#123A66);color:#fff;position:relative;overflow:hidden}
.sec-dark::before{content:"";position:absolute;width:620px;height:620px;left:-240px;bottom:-320px;border-radius:50%;background:radial-gradient(circle,rgba(92,138,216,.20),transparent 68%)}
.sec-dark>.container{position:relative}
.sec-head{max-width:760px;margin-bottom:54px}
.sec-head h2{font-size:clamp(28px,3.5vw,44px);line-height:1.28;letter-spacing:-1px;margin:12px 0 16px;font-weight:700}
.sec-sub{font-size:16px;color:var(--mute)}
.sec-head-light .sec-sub{color:rgba(255,255,255,.68)}
.eyebrow-light.eyebrow{color:var(--gold)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.band{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:38px;padding:18px 24px;border-radius:10px;background:linear-gradient(90deg,#F0F5FD,#F8FAFE);border-left:3px solid var(--gold);font-size:15px;color:var(--mute)}
.band span{color:var(--gold);font-size:18px}
.band b{color:var(--navy);font-weight:700}
.band-plain{background:var(--soft)}

/* ---------------- 痛点 ---------------- */
.pain{padding:30px 26px 32px;border:1px solid var(--line);border-radius:12px;background:#fff;transition:transform .25s,box-shadow .25s,border-color .25s}
.pain:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#C9D8EE}
.pain-n{display:block;font:400 30px/1 var(--serif);color:var(--gold);margin-bottom:20px}
.pain h3{font-size:17px;margin-bottom:12px;color:var(--navy)}
.pain p{font-size:14px;color:var(--mute);line-height:1.85}

/* ---------------- 关于 ---------------- */
.about-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:64px;align-items:start}
.lead-big{font-size:21px;line-height:1.85;color:var(--navy);font-weight:600;margin-bottom:20px}
.about-copy>p:not(.lead-big){font-size:15px;color:var(--mute);line-height:2}
.chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.chips span{padding:7px 16px;border:1px solid #CFDCEF;border-radius:100px;font-size:13px;color:var(--blue);background:#fff}
.about-side{display:grid;gap:16px}
.qcard{padding:28px 30px;border-radius:12px;background:#fff;border:1px solid var(--line);box-shadow:0 8px 24px rgba(10,36,68,.05)}
.qcard-label{display:block;font-size:12px;letter-spacing:2px;color:var(--blue);font-weight:700;margin-bottom:14px}
.qcard p{font-size:20px;line-height:1.6;color:var(--navy);font-weight:600}
.qcard small{display:block;margin-top:10px;font:italic 13px var(--serif);color:var(--mute)}
.qcard-accent{background:linear-gradient(140deg,var(--navy),var(--navy2));border-color:transparent}
.qcard-accent .qcard-label{color:var(--gold)}
.qcard-accent p{color:#fff;font-size:19px}
.qcard-accent small{color:rgba(255,255,255,.6)}

/* ---------------- 服务卡片 ---------------- */
.svc{display:flex;flex-direction:column;padding:34px 30px 30px;background:#fff;border:1px solid var(--line);border-radius:14px;transition:transform .25s,box-shadow .25s,border-color .25s}
.svc:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#C9D8EE}
.svc-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.svc-n{font:400 34px/1 var(--serif);color:var(--gold)}
.svc-glyph{display:grid;place-items:center;width:44px;height:44px;border-radius:11px;background:#EEF4FD;color:var(--blue);font-size:22px}
.svc h3{font-size:22px;color:var(--navy);margin-bottom:4px}
.svc-en{font:600 11px var(--sans);letter-spacing:2.6px;color:var(--blue);margin-bottom:18px}
.svc-desc{font-size:14px;color:var(--mute);line-height:1.9;margin-bottom:22px;min-height:80px}
.svc-list{margin-bottom:22px}
.svc-list li{position:relative;padding:7px 0 7px 22px;font-size:14px;color:var(--ink);border-bottom:1px dashed #EDF1F8}
.svc-list li:last-child{border-bottom:0}
.svc-list li::before{content:"";position:absolute;left:2px;top:16px;width:7px;height:7px;border-radius:50%;background:var(--gold)}
.svc-metrics,.svc-deliver{margin-top:auto;margin-bottom:20px;padding:14px 16px;border-radius:9px;background:#F5F8FD}
.svc-metrics{display:flex;gap:18px;flex-wrap:wrap;font-size:12px;color:var(--mute)}
.svc-metrics b{color:var(--navy);font-size:15px;margin-right:4px}
.svc-deliver p{font-size:13px;color:var(--mute);line-height:1.7;margin-top:5px}
.svc-label{font-size:11px;letter-spacing:2px;font-weight:700;color:var(--blue)}
.svc-link{align-self:flex-start;display:inline-flex;align-items:center;gap:9px;font-size:14px;font-weight:700;color:var(--blue);border-bottom:1px solid #C3D5F0;padding-bottom:3px;transition:gap .2s,color .2s}
.svc-link:hover{gap:15px;color:var(--navy)}
.foot-note{text-align:center;margin-top:36px;font-size:14px;color:var(--mute)}

/* ---------------- 行业覆盖 ---------------- */
.ind{position:relative;padding:30px 26px 32px;border:1px solid rgba(255,255,255,.14);border-radius:12px;background:rgba(255,255,255,.045);transition:background .25s,transform .25s,border-color .25s}
.ind:hover{background:rgba(255,255,255,.10);border-color:rgba(217,178,106,.5);transform:translateY(-5px)}
.ind-i{display:block;font:400 24px/1 var(--serif);color:var(--gold);margin-bottom:20px}
.ind h3{font-size:19px;margin-bottom:12px;color:#fff}
.ind p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66)}
.ind-foot{margin-top:38px;text-align:center;font-size:14px;color:rgba(255,255,255,.72)}

/* ---------------- 服务流程 ---------------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
.step{position:relative;text-align:center;padding:0 14px}
.step::before{content:"";position:absolute;top:26px;left:50%;width:100%;height:1px;background:linear-gradient(90deg,var(--gold),#DCE5F2);opacity:.65}
.step:last-child::before{display:none}
.step-n{position:relative;z-index:1;display:grid;place-items:center;width:52px;height:52px;margin:0 auto 20px;border-radius:50%;background:#fff;border:2px solid var(--gold);color:var(--navy);font:600 19px var(--serif);box-shadow:0 0 0 7px #F5F8FD}
.step h3{font-size:17px;color:var(--navy);margin-bottom:10px}
.step p{font-size:13px;color:var(--mute);line-height:1.75}

/* ---------------- 核心优势 ---------------- */
.why{padding:32px 26px;background:#fff;border:1px solid var(--line);border-radius:12px;transition:transform .25s,box-shadow .25s}
.why:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.why-n{display:block;font:400 26px/1 var(--serif);color:var(--gold);margin-bottom:18px}
.why h3{font-size:18px;color:var(--navy);margin-bottom:12px}
.why p{font-size:14px;line-height:1.9;color:var(--mute)}

/* ---------------- CTA ---------------- */
.cta{position:relative;isolation:isolate;padding:108px 0 116px;text-align:center;color:#fff;background:linear-gradient(135deg,#071E38,#123A66);overflow:hidden}
.cta-bg{position:absolute;inset:0;z-index:-1}
.cta-bg::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse at center,#000,transparent 78%)}
.cta-bg::after{content:"";position:absolute;width:700px;height:700px;left:50%;top:-360px;transform:translateX(-50%);border-radius:50%;background:radial-gradient(circle,rgba(217,178,106,.16),transparent 68%)}
.cta-in .eyebrow{justify-content:center}
.cta h2{font-size:clamp(30px,4.2vw,52px);line-height:1.35;letter-spacing:-1px;margin:14px 0 20px}
.cta-in>p:not(.eyebrow):not(.cta-company){font-size:16px;color:rgba(255,255,255,.72);margin-bottom:34px}
.mail{display:inline-flex;align-items:center;gap:12px;padding:16px 30px;border-radius:9px;background:var(--gold);color:var(--navy);font-size:17px;font-weight:700;transition:transform .2s,background .2s;box-shadow:0 10px 30px rgba(217,178,106,.24)}
.mail:hover{transform:translateY(-3px);background:var(--gold2)}
.mail-ico{font-size:19px}
.cta-company{margin-top:30px;font-size:14px;letter-spacing:2px;color:rgba(255,255,255,.56)}

/* ---------------- Footer ---------------- */
.ftr{background:#06182F;color:rgba(255,255,255,.66);padding:66px 0 0}
.ftr-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:48px;padding-bottom:52px}
.ftr-brand p{margin-top:20px;font-size:14px;color:rgba(255,255,255,.8)}
.ftr-brand small{display:block;margin-top:6px;font:italic 12px var(--serif);color:rgba(255,255,255,.45)}
.ftr-col{display:flex;flex-direction:column;gap:11px}
.ftr-col h4{font-size:14px;color:#fff;letter-spacing:1px;margin-bottom:8px}
.ftr-col a,.ftr-col p{font-size:13px;line-height:1.7;margin:0}
.ftr-col a:hover{color:var(--gold)}
.ftr-mail{font-size:15px!important;font-weight:700;color:var(--gold2)!important}
.ftr-bottom{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.10);font-size:12px;color:rgba(255,255,255,.45)}

/* ---------------- 滚动显现 ---------------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------------- 响应式 ---------------- */
@media (max-width:1080px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .about-grid{gap:38px}
}
@media (max-width:960px){
  .hdr-in{gap:16px}
  .menu-btn{display:flex}
  .nav{position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:0;background:#fff;padding:10px 4% 22px;box-shadow:0 18px 30px rgba(10,36,68,.16)}
  .nav.open{display:flex}
  .nav>a,.hdr.scrolled .nav>a:not(.nav-cta){color:var(--ink)!important;padding:13px 4px;border-bottom:1px solid var(--line);font-size:15px}
  .nav>a:not(.nav-cta)::after{display:none}
  .nav .nav-cta{margin-top:16px;justify-content:center;border-bottom:0!important;color:var(--navy)!important}
  .hero-in{margin-left:4%;padding:150px 0 76px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .step:nth-child(2)::before,.step:nth-child(4)::before{display:none}
  .step:last-child{grid-column:1/-1;max-width:50%;margin:0 auto}
  .step:last-child::before{display:none}
  .ftr-grid{grid-template-columns:repeat(2,1fr);gap:34px}
}
@media (max-width:700px){
  .sec{padding:72px 0}
  .sec-head{margin-bottom:38px}
  .hero-in{padding:136px 0 64px}
  .hero h1{letter-spacing:-1px}
  .hero-stats .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat{padding:20px 14px;border-bottom:1px solid rgba(255,255,255,.10)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(3),.stat:nth-child(4){border-bottom:0}
  .stat b{font-size:28px}
  .grid-4,.grid-3{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr;gap:30px}
  .lead-big{font-size:18px}
  .svc-desc{min-height:0}
  .steps{grid-template-columns:1fr;gap:0}
  .step{text-align:left;padding:0 0 26px 76px;border-left:1px dashed #D6E1F0;margin-left:26px}
  .step::before{display:none!important}
  .step-n{position:absolute;left:-53px;top:0;margin:0;width:44px;height:44px;box-shadow:none}
  .step:last-child{max-width:none;margin-left:26px}
  .ftr-grid{grid-template-columns:1fr;gap:28px}
  .cta{padding:80px 0}
  .mail{font-size:15px;padding:14px 20px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
}