:root{--ei-navy:#071c34;--ei-navy-2:#0e2f55;--ei-ink:#102b48;--ei-muted:#667b91;--ei-copper:#b77832;--ei-gold:#d49a43;--ei-bg:#f3f6f9;--ei-line:#dce4ec;--ei-white:#fff}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body.insights-page{margin:0;background:var(--ei-bg);color:var(--ei-ink);font-family:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;line-height:1.7}
.ei-nav{position:sticky;top:0;z-index:50;background:rgba(7,28,52,.94);border-bottom:1px solid rgba(255,255,255,.09);backdrop-filter:blur(18px)}
.ei-nav-inner{width:min(1180px,calc(100% - 40px));height:78px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:28px}
.ei-brand{display:flex;align-items:center}.ei-brand img{width:140px;height:auto;display:block;background:#fff;border-radius:12px;padding:8px 12px}
.ei-nav-links{display:flex;align-items:center;gap:28px}.ei-nav-links a{color:rgba(255,255,255,.74);text-decoration:none;font-size:14px}.ei-nav-links a:hover,.ei-nav-links a.active{color:#fff}.ei-nav-links .ei-contact{background:var(--ei-gold);color:#fff;padding:10px 18px;border-radius:8px;font-weight:600}
.ei-hero{position:relative;overflow:hidden;background:var(--ei-navy);color:#fff;padding:92px 0 84px}
.ei-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:72px 72px;mask-image:linear-gradient(to bottom,#000,transparent 92%)}
.ei-hero::after{content:"";position:absolute;width:620px;height:620px;right:-180px;top:-250px;background:radial-gradient(circle,rgba(212,154,67,.22),transparent 68%)}
.ei-container{position:relative;width:min(1180px,calc(100% - 40px));margin:auto}
.ei-kicker{display:flex;align-items:center;gap:12px;color:#e0aa5c;font-size:13px;font-weight:700;letter-spacing:.18em}.ei-kicker::before{content:"";width:42px;height:1px;background:#e0aa5c}
.ei-hero-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(320px,.6fr);gap:70px;align-items:end}
.ei-hero h1{max-width:800px;margin:22px 0 20px;font-family:"Songti SC","STSong",serif;font-size:clamp(44px,5.3vw,76px);font-weight:600;line-height:1.16;letter-spacing:-.035em}.ei-hero h1 em{color:#e1a34a;font-style:normal}
.ei-hero-lead{max-width:760px;margin:0;color:rgba(255,255,255,.7);font-size:18px;line-height:1.95}
.ei-principles{display:grid;gap:12px}.ei-principles div{display:grid;grid-template-columns:34px 1fr;gap:12px;align-items:center;border:1px solid rgba(255,255,255,.13);border-radius:14px;padding:15px 16px;background:rgba(255,255,255,.055)}.ei-principles b{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:rgba(212,154,67,.16);color:#efbb6d;font-size:12px}.ei-principles span{font-size:14px;color:rgba(255,255,255,.82)}
.ei-toolbar-wrap{position:sticky;top:78px;z-index:30;background:rgba(243,246,249,.94);border-bottom:1px solid var(--ei-line);backdrop-filter:blur(14px)}
.ei-toolbar{width:min(1180px,calc(100% - 40px));margin:auto;padding:18px 0;display:flex;align-items:center;justify-content:space-between;gap:20px}
.ei-filters{display:flex;gap:8px;overflow:auto;scrollbar-width:none}.ei-filters::-webkit-scrollbar{display:none}.ei-filter{white-space:nowrap;border:1px solid var(--ei-line);background:#fff;color:#51677f;border-radius:999px;padding:9px 14px;cursor:pointer;font:inherit;font-size:13px}.ei-filter:hover,.ei-filter.active{border-color:var(--ei-copper);background:#fff8ee;color:#8a531b}
.ei-search{display:flex;align-items:center;min-width:260px;border:1px solid var(--ei-line);background:#fff;border-radius:999px;padding:0 15px}.ei-search svg{width:17px;color:#7d8ea1}.ei-search input{width:100%;border:0;outline:0;background:transparent;padding:10px 9px;color:var(--ei-ink);font:inherit;font-size:13px}
.ei-main{padding:64px 0 96px}.ei-section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:28px}.ei-section-head h2{margin:0;font-family:"Songti SC","STSong",serif;font-size:36px;font-weight:600}.ei-section-head p{max-width:600px;margin:0;color:var(--ei-muted);font-size:15px}
.ei-feature{display:grid;grid-template-columns:minmax(0,1.24fr) minmax(330px,.76fr);border:1px solid #cfd9e4;border-radius:28px;background:#fff;overflow:hidden;box-shadow:0 22px 55px rgba(17,47,80,.1);margin-bottom:26px;scroll-margin-top:170px}
.ei-feature-copy{padding:42px 46px}.ei-meta{display:flex;flex-wrap:wrap;gap:9px;align-items:center;color:#7a8da2;font-size:12px}.ei-tag{display:inline-flex;border-radius:999px;padding:5px 10px;background:#f8eee2;color:#905a25;font-weight:700}.ei-feature h2{margin:18px 0 16px;font-family:"Songti SC","STSong",serif;font-size:clamp(30px,3.5vw,48px);line-height:1.32;font-weight:600}.ei-feature-summary{margin:0;color:#536b83;font-size:16px}.ei-feature-action{margin:25px 0 0;padding:20px 22px;border-left:3px solid var(--ei-gold);background:#f6f8fa;color:#254461}.ei-feature-action b{display:block;color:#9a5f22;font-size:12px;letter-spacing:.08em;margin-bottom:5px}.ei-feature-action p{margin:0}.ei-feature-link{display:inline-flex;margin-top:24px;color:#8f561f;text-decoration:none;font-weight:700}.ei-feature-link:hover{text-decoration:underline}
.ei-feature-visual{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:470px;padding:36px;background:linear-gradient(145deg,#0d2948,#173e69)}.ei-feature-visual::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 16%,rgba(224,170,92,.35),transparent 34%),linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:auto,54px 54px,54px 54px}.ei-feature-visual>*{position:relative}.ei-feature-visual .label{color:#eab568;font-size:12px;letter-spacing:.12em}.ei-feature-visual strong{display:block;margin:13px 0 20px;color:#fff;font-family:"Songti SC","STSong",serif;font-size:31px;line-height:1.4}.ei-feature-visual ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}.ei-feature-visual li{display:flex;gap:10px;color:rgba(255,255,255,.72);font-size:14px}.ei-feature-visual li::before{content:"✓";color:#eab568}
.ei-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.ei-card{display:flex;flex-direction:column;min-height:350px;border:1px solid var(--ei-line);border-radius:20px;background:#fff;padding:26px;scroll-margin-top:170px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}.ei-card:hover{transform:translateY(-4px);border-color:#c79a63;box-shadow:0 18px 38px rgba(20,50,80,.09)}.ei-card h3{margin:17px 0 13px;font-family:"Songti SC","STSong",serif;font-size:23px;line-height:1.45}.ei-card .ei-summary{margin:0;color:#60758b;font-size:14px}.ei-card .ei-action{margin:18px 0 0;padding-top:16px;border-top:1px solid #edf0f3;color:#274761;font-size:13px}.ei-card .ei-action b{color:#9a5f22}.ei-card-bottom{display:flex;align-items:end;justify-content:space-between;gap:12px;margin-top:auto;padding-top:24px}.ei-card-bottom span{color:#8595a6;font-size:11px}.ei-card-bottom a{color:#8d561f;text-decoration:none;font-size:13px;font-weight:700}.ei-empty{display:none;padding:50px;border:1px dashed #c8d3df;border-radius:18px;text-align:center;color:#6e8194;background:#fff}.ei-empty.show{display:block}.ei-hidden{display:none!important}
.ei-method{margin-top:74px;padding:42px;border-radius:26px;background:#e9eef4;border:1px solid #d5dfe9}.ei-method-head{display:grid;grid-template-columns:.7fr 1.3fr;gap:48px}.ei-method h2{margin:0;font-family:"Songti SC","STSong",serif;font-size:34px;line-height:1.35}.ei-method p{margin:0;color:#5e7389}.ei-method-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:30px}.ei-method-steps article{background:#fff;border:1px solid #d9e2eb;border-radius:15px;padding:20px}.ei-method-steps b{color:#b06e2b;font:600 13px ui-monospace,monospace}.ei-method-steps h3{margin:11px 0 7px;font-size:16px}.ei-method-steps p{font-size:13px}
.ei-cta{margin-top:70px;border-radius:26px;background:var(--ei-navy);color:#fff;padding:50px;display:flex;align-items:center;justify-content:space-between;gap:30px}.ei-cta h2{margin:0 0 8px;font-family:"Songti SC","STSong",serif;font-size:34px}.ei-cta p{margin:0;color:rgba(255,255,255,.65)}.ei-cta a{white-space:nowrap;background:var(--ei-gold);color:#fff;text-decoration:none;border-radius:8px;padding:13px 21px;font-weight:700}
.ei-footer{background:#06172c;color:rgba(255,255,255,.56);padding:34px 20px;text-align:center;font-size:12px}.ei-footer p{margin:4px}.ei-footer a{color:inherit}
.enterprise-insights-preview{padding:100px 0;background:#eef3f7}.enterprise-insights-preview .insights-preview-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}.enterprise-insights-preview .insights-preview-link{color:#94602b;text-decoration:none;font-weight:700}.enterprise-insights-preview .insights-preview-link:hover{text-decoration:underline}.insights-preview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.insights-preview-card{display:flex;flex-direction:column;min-height:285px;padding:28px;border-radius:18px;border:1px solid #d7e0e9;background:#fff;color:#17324d;text-decoration:none;transition:transform .25s ease,box-shadow .25s ease}.insights-preview-card:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(19,45,73,.09)}.insights-preview-card .meta{display:flex;justify-content:space-between;gap:12px;color:#9b642f;font-size:12px}.insights-preview-card h3{font-family:"Songti SC","STSong",serif;font-size:24px;line-height:1.45;margin:20px 0 13px}.insights-preview-card p{color:#677b90;font-size:14px;line-height:1.8;margin:0}.insights-preview-card strong{margin-top:auto;padding-top:22px;color:#8f571f;font-size:13px}
@media(max-width:1024px){.ei-hero-grid{grid-template-columns:1fr;gap:40px}.ei-principles{grid-template-columns:repeat(3,1fr)}.ei-feature{grid-template-columns:1fr}.ei-feature-visual{min-height:320px}.ei-grid{grid-template-columns:repeat(2,1fr)}.ei-method-steps{grid-template-columns:repeat(2,1fr)}.insights-preview-grid{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding:4px 0 18px;margin:0}.insights-preview-grid::-webkit-scrollbar{display:none}.insights-preview-card{flex:none;width:min(74vw,420px);scroll-snap-align:start}.enterprise-insights-preview .insights-preview-head{align-items:start}}
@media(max-width:720px){.ei-nav-inner{height:68px;width:min(100% - 28px,1180px)}.ei-brand img{width:118px}.ei-nav-links a:not(.ei-contact){display:none}.ei-nav-links .ei-contact{padding:8px 13px;font-size:12px}.ei-hero{padding:70px 0 62px}.ei-container,.ei-toolbar{width:calc(100% - 28px)}.ei-hero h1{font-size:42px}.ei-hero-lead{font-size:16px}.ei-principles{grid-template-columns:1fr}.ei-toolbar-wrap{top:68px}.ei-toolbar{align-items:stretch;flex-direction:column;padding:13px 0}.ei-search{min-width:0}.ei-main{padding:46px 0 70px}.ei-section-head{align-items:start;flex-direction:column}.ei-section-head h2{font-size:30px}.ei-feature-copy{padding:29px 24px}.ei-feature-visual{padding:28px;min-height:300px}.ei-grid{grid-template-columns:1fr}.ei-card{min-height:0}.ei-method{padding:28px 22px}.ei-method-head{grid-template-columns:1fr;gap:16px}.ei-method-steps{grid-template-columns:1fr}.ei-cta{align-items:flex-start;flex-direction:column;padding:34px 26px}.enterprise-insights-preview{padding:72px 0}.enterprise-insights-preview .insights-preview-head{flex-direction:column}.insights-preview-card{width:84%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.ei-card,.insights-preview-card{transition:none}.ei-card:hover,.insights-preview-card:hover{transform:none}}