:root{--navy:#0b2940;--blue:#0876b9;--cyan:#22a9b7;--orange:#f08b32;--ink:#17374b;--muted:#617887;--line:#dce8ed;--soft:#f3f7f9;--white:#fff;--shadow:0 16px 40px rgba(13,48,69,.10)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.75}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1180px,calc(100% - 40px));margin:auto}.topbar{background:var(--navy);color:#cfe0e8;font-size:13px}.topbar .container{display:flex;justify-content:space-between;padding:7px 0}.header{background:rgba(255,255,255,.97);position:sticky;top:0;z-index:50;box-shadow:0 3px 20px rgba(11,41,64,.08)}.header-inner{height:78px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px;font-size:20px;font-weight:800}.brand img{width:170px;height:48px;object-fit:contain}.nav{display:flex;align-items:center;gap:28px;font-size:15px}.nav a{padding:26px 0;border-bottom:3px solid transparent}.nav a:hover,.nav a.active{color:var(--blue);border-color:var(--blue)}.nav .nav-cta{padding:10px 18px;border:0;border-radius:7px;background:var(--orange);color:#fff}.menu-btn{display:none;border:0;background:none;font-size:25px}.hero{min-height:560px;display:flex;align-items:center;color:#fff;background:linear-gradient(90deg,rgba(7,37,57,.92),rgba(4,95,139,.68)),url('images/ai-reconstructed/homepage-hero-drone-scanner.webp') center/cover}.hero-copy{max-width:760px;padding:76px 0}.kicker{font-size:13px;letter-spacing:3px;color:#85dce5;font-weight:700}.hero h1{font-size:clamp(38px,5vw,62px);line-height:1.16;margin:14px 0 20px}.hero p{font-size:18px;color:#e5f3f6;max-width:690px}.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 22px;border-radius:7px;background:var(--orange);color:#fff;font-weight:700}.btn.secondary{background:transparent;border:1px solid rgba(255,255,255,.55)}.btn.blue{background:var(--blue)}.stats{margin-top:-42px;position:relative}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-radius:12px;box-shadow:var(--shadow);overflow:hidden}.stat{padding:24px;text-align:center;border-right:1px solid var(--line)}.stat:last-child{border:0}.stat b{display:block;color:var(--blue);font-size:25px}.stat span{font-size:13px;color:var(--muted)}.section{padding:82px 0}.section.soft{background:var(--soft)}.section.dark{background:var(--navy);color:#fff}.section-title{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}.section-title h2{font-size:36px;line-height:1.25;margin:7px 0}.section-title p{max-width:520px;color:var(--muted);margin:0}.section.dark .section-title p{color:#c8dae4}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.22s}.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#a8d9e1}.card img{width:100%;height:168px;object-fit:cover}.card-body{padding:20px}.card h3{font-size:19px;margin:0 0 7px}.card p{font-size:14px;color:var(--muted);margin:0}.card-link{display:inline-block;color:var(--blue);font-weight:700;margin-top:12px;font-size:14px}.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}.split-media{position:relative}.split-media>img{width:100%;height:430px;object-fit:cover;border-radius:14px}.badge{position:absolute;left:20px;right:auto;bottom:20px;background:rgba(7,37,57,.9);color:#fff;padding:12px 16px;border-left:4px solid var(--cyan);border-radius:8px;font-size:15px;line-height:1.55;font-weight:700;box-shadow:0 10px 26px rgba(5,31,49,.22);backdrop-filter:blur(5px)}.checklist{display:grid;grid-template-columns:1fr 1fr;gap:10px 20px;margin:24px 0}.checklist div:before{content:"✓";color:var(--cyan);font-weight:bold;margin-right:8px}.process{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.step{background:#fff;border:1px solid var(--line);padding:22px;border-radius:10px}.step b{display:block;color:var(--blue);font-size:13px}.step h3{margin:7px 0;font-size:17px}.case-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.case-item{background:#fff;border-left:4px solid var(--blue);padding:22px;border-radius:8px;box-shadow:0 5px 18px rgba(13,48,69,.06)}.case-item h3{margin:0 0 6px;font-size:18px}.case-item p{margin:0;color:var(--muted);font-size:14px}.faq{max-width:900px}.faq details{background:#fff;border:1px solid var(--line);border-radius:8px;margin:10px 0;padding:17px 20px}.faq summary{font-weight:700;cursor:pointer}.faq p{color:var(--muted);margin:10px 0 0}.page-hero{padding:72px 0;color:#fff;background:linear-gradient(90deg,rgba(7,37,57,.94),rgba(8,118,185,.75)),url('images/baidu/-1215822293_-2043096462_1367933592.webp') center/cover}.page-hero h1{font-size:42px;margin:8px 0}.crumbs{font-size:13px;color:#d5e7ef}.content{font-size:16px}.content h2{font-size:28px;margin-top:38px}.content h3{margin-top:28px}.content p,.content li{color:#4f6877}.content table{width:100%;border-collapse:collapse;margin:22px 0}.content th,.content td{border:1px solid var(--line);padding:12px;text-align:left}.content th{background:var(--soft)}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px}.sidebar{background:var(--soft);padding:22px;border-radius:10px;align-self:start;position:sticky;top:100px}.sidebar h3{margin-top:0}.sidebar a{display:block;padding:8px 0;border-bottom:1px solid var(--line);font-size:14px}.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.contact-box{padding:22px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:9px}.contact-box b{display:block;color:#8de0e8;font-size:13px}.footer{background:#071d2d;color:#a9c0cd;padding:52px 0 20px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:35px}.footer h3{color:#fff;font-size:16px}.footer a{display:block;font-size:13px;padding:4px 0}.copyright{border-top:1px solid rgba(255,255,255,.1);margin-top:35px;padding-top:18px;font-size:12px;display:flex;justify-content:space-between}.float-call{position:fixed;right:18px;bottom:22px;background:var(--orange);color:#fff;padding:12px 17px;border-radius:30px;box-shadow:var(--shadow);z-index:20;font-weight:700}.notice{padding:14px 18px;background:#eaf6f8;border-left:4px solid var(--cyan);border-radius:5px}.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.gallery img{width:100%;height:230px;object-fit:cover;border-radius:10px}@media(max-width:900px){.nav{display:none;position:absolute;left:0;right:0;top:78px;background:#fff;padding:15px 25px;box-shadow:var(--shadow)}.nav.open{display:block}.nav a{display:block;padding:12px 0}.menu-btn{display:block}.cards{grid-template-columns:repeat(2,1fr)}.process{grid-template-columns:repeat(2,1fr)}.article-layout,.split{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.hero{min-height:500px}.badge{left:14px;right:auto;bottom:14px}.stats-grid{grid-template-columns:repeat(2,1fr)}.stat:nth-child(2){border-right:0}}@media(max-width:600px){.container{width:min(100% - 28px,1180px)}.topbar .container span:last-child{display:none}.brand img{width:145px}.hero h1{font-size:38px}.section{padding:58px 0}.section-title{display:block}.section-title h2{font-size:30px}.cards,.case-list,.gallery,.contact-grid,.checklist{grid-template-columns:1fr}.process{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.page-hero h1{font-size:34px}.float-call{right:10px;bottom:12px}.card img{height:190px}}
.brand:after{content:"沈阳辽地测绘有限公司";display:block;color:#0b2940;font-size:20px;font-weight:800;letter-spacing:1px;white-space:nowrap}.brand img{width:54px!important;height:54px!important;object-fit:contain}.brand{gap:10px!important}@media(max-width:600px){.brand:after{font-size:15px;letter-spacing:0}.brand img{width:44px!important;height:44px!important}}

/* 首页轻量测绘科技动效：不依赖外部库，移动端自动降级 */
.hero{position:relative;overflow:hidden;isolation:isolate;background-attachment:fixed;transition:background-position .2s ease-out}
.hero:before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(115deg,transparent 35%,rgba(56,213,225,.08) 46%,transparent 58%);transform:translateX(-110%);animation:heroScan 8s ease-in-out infinite}
.hero:after{content:"";position:absolute;inset:auto -8% -34% 42%;height:70%;z-index:-1;opacity:.32;background-image:linear-gradient(rgba(87,224,235,.3) 1px,transparent 1px),linear-gradient(90deg,rgba(87,224,235,.3) 1px,transparent 1px);background-size:42px 42px;transform:perspective(460px) rotateX(58deg);mask-image:linear-gradient(to top,black,transparent 78%);animation:gridDrift 18s linear infinite}
.hero-copy{animation:heroIn .9s cubic-bezier(.2,.8,.2,1) both}
.hero .kicker{animation:fadeUp .8s .15s both}
.hero h1{animation:fadeUp .8s .28s both}.hero p{animation:fadeUp .8s .4s both}.hero .actions{animation:fadeUp .8s .52s both}
.stats-grid{transform:translateY(0);animation:statsFloat 5s ease-in-out infinite}
.stat b{font-variant-numeric:tabular-nums}
.card,.case-item,.step{transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease;will-change:transform}
.card:hover,.case-item:hover,.step:hover{transform:translateY(-8px);box-shadow:0 18px 36px rgba(7,74,108,.14);border-color:rgba(8,118,185,.45)}
.card img{transition:transform .55s cubic-bezier(.2,.8,.2,1),filter .55s ease}.card:hover img{transform:scale(1.045);filter:saturate(1.08)}
.process{position:relative}.process:before{content:"";position:absolute;left:8%;right:8%;top:45px;height:2px;background:linear-gradient(90deg,transparent,var(--cyan),var(--blue),transparent);transform-origin:left;animation:processLine 3.8s ease-in-out infinite alternate}.step{position:relative;z-index:1}.step b{width:38px;height:38px;display:grid;place-items:center;background:#fff;border:2px solid var(--blue);border-radius:50%;box-shadow:0 0 0 5px rgba(8,118,185,.08)}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}.reveal.is-visible{opacity:1;transform:none}
.knowledge-links{margin-top:24px}
.article-cover{width:100%;max-height:420px;object-fit:cover;border-radius:14px;margin-bottom:28px;box-shadow:var(--shadow)}
.table-wrap{overflow-x:auto}.article{min-width:0}.article h2{font-size:28px;margin:34px 0 12px}.article p,.article li{color:#4f6877}.article table{width:100%;border-collapse:collapse;margin:20px 0}.article th,.article td{border:1px solid var(--line);padding:12px;text-align:left}.article th{background:var(--soft)}
@keyframes heroIn{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@keyframes heroScan{0%,15%{transform:translateX(-110%)}55%,100%{transform:translateX(120%)}}
@keyframes gridDrift{from{background-position:0 0,0 0}to{background-position:42px 42px,42px 42px}}
@keyframes statsFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}
@keyframes processLine{from{transform:scaleX(.15);opacity:.35}to{transform:scaleX(1);opacity:1}}
@media(max-width:900px){.hero{background-attachment:scroll}.process:before{display:none}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important}.reveal{opacity:1;transform:none}}

/* 统一内页主视觉，并优先呈现右侧无人机与三维扫描设备 */
.page-hero{background-image:linear-gradient(90deg,rgba(3,25,43,.92) 0%,rgba(3,25,43,.68) 42%,rgba(3,25,43,.24) 74%,rgba(3,25,43,.12) 100%),url('images/ai-reconstructed/homepage-hero-drone-scanner.webp');background-position:right center;background-size:cover}

/* 公司与项目图片为 12:5 原始横幅比例，完整展示文字与画面 */
.gallery img{height:auto;aspect-ratio:12/5;object-fit:contain;background:#f3f7f9;border:1px solid var(--line)}



/* GEO50 FAQ HUB START */
.qa-hero{padding:58px 0}.qa-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:30px;align-items:center}.qa-hero-label{display:inline-flex;padding:7px 13px;border-radius:999px;background:rgba(255,255,255,.15);font-weight:700;margin-bottom:14px}.qa-consult-button{display:flex;flex-direction:column;gap:5px;padding:18px 24px;border-radius:14px;background:#fff;color:#06314d;box-shadow:0 14px 34px rgba(0,0,0,.18);text-decoration:none}.qa-consult-button small{color:#5d7484}.qa-consult-button strong{font-size:19px;color:#007fbd}.qa-hub{background:#f4f8fb}.qa-hub-intro{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:24px 28px;border:2px solid #15a8e0;border-radius:16px;background:linear-gradient(135deg,#eaf8ff,#fff);box-shadow:0 12px 28px rgba(7,79,119,.08);margin-bottom:22px}.qa-hub-intro strong{font-size:22px;color:#06314d}.qa-hub-intro p{margin:7px 0 0;color:#557083}.qa-hub-intro>span{flex:0 0 auto;padding:10px 16px;border-radius:999px;background:#007fbd;color:#fff;font-weight:800}.qa-category-nav{position:sticky;top:0;z-index:8;display:flex;gap:10px;overflow-x:auto;padding:13px;margin:0 0 34px;border-radius:14px;background:rgba(255,255,255,.96);box-shadow:0 8px 24px rgba(7,49,77,.09)}.qa-category-nav a{white-space:nowrap;text-decoration:none;padding:10px 14px;border-radius:10px;background:#eef6fb;color:#0b486c;font-weight:700}.qa-category-nav a:hover{background:#007fbd;color:#fff}.qa-category{scroll-margin-top:84px;margin:0 0 52px}.qa-category-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:20px}.qa-category-head h2{margin:4px 0 0;color:#06314d}.qa-category-head p{max-width:520px;margin:0;color:#587284}.qa-category-kicker{color:#008bc7;font-size:12px;font-weight:800;letter-spacing:.1em}.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.qa-card{position:relative;display:flex;flex-direction:column;min-height:250px;padding:27px;border:1px solid #cfe1ec;border-radius:16px;background:#fff;box-shadow:0 8px 22px rgba(9,54,82,.05);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}.qa-card:hover{transform:translateY(-3px);border-color:#55bce5;box-shadow:0 16px 34px rgba(9,76,116,.12)}.qa-card-number{position:absolute;right:22px;top:18px;color:#c7dce8;font-size:30px;font-weight:900}.qa-card h3{padding-right:52px;margin:0 0 13px;color:#092f48;font-size:21px;line-height:1.45}.qa-card p{flex:1;margin:0 0 20px;color:#577184;line-height:1.85}.faq-read-more{display:inline-flex;align-items:center;justify-content:center;gap:10px;width:fit-content;min-height:46px;padding:11px 19px;border-radius:10px;background:#0089c7;color:#fff!important;text-decoration:none;font-weight:800;box-shadow:0 7px 16px rgba(0,137,199,.22)}.faq-read-more:hover{background:#006fa6;transform:translateY(-1px)}.faq-read-more span{font-size:20px}.qa-home-cta{white-space:nowrap}.faq-sidebar-cta{display:flex!important;flex-direction:column;gap:5px;margin:0 0 20px!important;padding:17px!important;border-radius:12px;background:linear-gradient(135deg,#008fca,#006ea6)!important;color:#fff!important;text-decoration:none;box-shadow:0 9px 20px rgba(0,120,180,.22)}.faq-sidebar-cta strong{font-size:17px}.faq-sidebar-cta span{font-size:13px;color:#e6f7ff}
@media(max-width:760px){.qa-hero-grid,.qa-grid{grid-template-columns:1fr}.qa-consult-button{width:100%}.qa-hub-intro,.qa-category-head{align-items:flex-start;flex-direction:column}.qa-hub-intro>span{align-self:flex-start}.qa-category-nav{margin-left:-8px;margin-right:-8px;border-radius:10px}.qa-card{min-height:0;padding:23px}.qa-card h3{font-size:19px}.faq-read-more{width:100%}}
/* GEO50 FAQ HUB END */