/* ==========================================================================
   BingGeo 全站公共样式（由 app 单页站点样式抽离 + 内页扩展）
   说明：所有内页模板共用本文件，页面级特殊样式写在各自模板的 <style> 中
   ========================================================================== */
:root{
  --blue1:#2B7DFF; --blue2:#5AA8FF;
  --blue-soft:rgba(43,125,255,.10);
  --ink:#0d1017; --text:#3d4453; --text2:#7b8398;
  --line:#e7eaf2; --gray-bg:#f5f6fa; --radius:18px;
  --shadow:0 16px 44px rgba(20,40,90,.12);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:#fff;color:var(--ink);line-height:1.75;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}

/* ===== 导航（黑色） ===== */
header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(6,8,14,.9);backdrop-filter:blur(14px);border-bottom:1px solid rgba(90,150,255,.16)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.logo{display:flex;align-items:center;gap:11px}
.logo img{width:38px;height:38px}
.logo .name{font-size:20px;font-weight:800;color:#fff;letter-spacing:.5px}
.logo .name b{color:var(--blue2)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{font-size:14.5px;color:rgba(255,255,255,.7);font-weight:500;position:relative;padding:4px 10px;transition:color .2s}
.nav-links a:not(.btn-workbench):hover{color:var(--blue2)}
.nav-links a:not(.btn-workbench)::after{content:"";position:absolute;left:0;bottom:-3px;width:0;height:2px;background:var(--blue2);transition:width .25s}
.nav-links a:not(.btn-workbench):hover::after{width:100%}
.nav-links a.active{color:var(--blue2)}
.nav-links a.active::after{width:100%}
.btn-workbench{background:linear-gradient(135deg,var(--blue1),var(--blue2));color:#fff!important;padding:11px 36px;border-radius:9px;font-weight:700;letter-spacing:.5px;transition:all .2s;box-shadow:0 6px 18px rgba(43,125,255,.35)}
.btn-workbench:hover{transform:translateY(-1px);box-shadow:0 10px 26px rgba(43,125,255,.5)}
.menu-toggle{display:none;background:none;border:none;font-size:26px;color:var(--blue2);cursor:pointer}

/* ===== Hero（纯黑+弧线光带） ===== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;background:#04060c url("/static/images/binggeo/hero-bg.jpg") center/cover no-repeat;overflow:hidden}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center;padding:150px 28px 140px;width:100%}
.hero-tag{display:inline-flex;align-items:center;gap:9px;background:rgba(43,125,255,.14);border:1px solid rgba(90,168,255,.4);color:#8fc0ff;padding:8px 20px;border-radius:100px;font-size:13.5px;font-weight:700;margin-bottom:28px}
.hero-tag .dot{width:8px;height:8px;border-radius:50%;background:var(--blue2);box-shadow:0 0 12px var(--blue2);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{font-size:clamp(34px,4.6vw,56px);line-height:1.22;font-weight:900;color:#fff;letter-spacing:1px}
.hero h1 .blue{background:linear-gradient(90deg,#5AA8FF,#8FC5FF);-webkit-background-clip:text;background-clip:text;color:transparent;display:inline-block}
.hero p.sub{font-size:clamp(14.5px,1.6vw,17px);color:#8b96ad;max-width:560px;margin:24px 0 0}
.hero-btns{margin-top:28px;display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:15px 36px;border-radius:10px;font-size:15.5px;font-weight:700;transition:all .25s}
.btn-blue{background:linear-gradient(135deg,var(--blue1),var(--blue2));color:#fff;box-shadow:0 10px 30px rgba(43,125,255,.4)}
.btn-blue:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(43,125,255,.55)}
.btn-ghost{border:1.5px solid rgba(90,168,255,.55);color:#9ec8ff}
.btn-ghost:hover{background:rgba(43,125,255,.12)}
.hero-trust{display:flex;margin-top:168px;border-top:1px solid rgba(90,150,255,.18);padding-top:26px;flex-wrap:wrap}
.hero-trust div{padding:0 32px;border-left:1px solid rgba(90,150,255,.18)}
.hero-trust div:first-child{padding-left:0;border-left:none}
.hero-trust b{font-size:clamp(21px,2.3vw,28px);color:#fff;font-weight:900;display:block;line-height:1.15}
.hero-trust b i{font-style:normal;color:var(--blue2)}
.hero-trust span{font-size:12.5px;color:#7d8aa5}

/* AI问答打字机卡片 */
.ai-card{background:rgba(10,14,24,.85);border:1px solid rgba(90,168,255,.3);border-radius:18px;padding:26px 26px 22px;backdrop-filter:blur(12px);box-shadow:0 34px 80px rgba(0,0,0,.55);transform:rotate(-1deg);transition:transform .4s}
.ai-card:hover{transform:rotate(0)}
.ai-card .head{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.ai-card .avatar{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--blue1),var(--blue2));display:flex;align-items:center;justify-content:center;font-weight:900;color:#fff;font-size:15px}
.ai-card .head span{font-size:12.5px;color:#8fc0ff;font-weight:700;letter-spacing:1.5px}
.ai-q{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:13px 16px;font-size:14px;color:#d5deee;margin-bottom:14px}
.ai-a{font-size:14px;color:#a9b6cd;min-height:110px;line-height:1.9}
.ai-a .brand{color:#7db6ff;font-weight:800}
.cursor{display:inline-block;width:2px;height:15px;background:#7db6ff;vertical-align:-2px;animation:blink 1s infinite}
@keyframes blink{50%{opacity:0}}

/* 跑马灯 */
.marquee-band{position:absolute;left:0;right:0;bottom:0;z-index:3;background:rgba(3,4,8,.85);border-top:1px solid rgba(90,150,255,.18);backdrop-filter:blur(8px);padding:17px 0;overflow:hidden}
.marquee{display:flex;gap:64px;width:max-content;animation:scroll 30s linear infinite}
.marquee span{font-size:14.5px;color:#6e7d9c;font-weight:700;letter-spacing:1.5px;display:flex;align-items:center;gap:10px;white-space:nowrap}
.marquee span i{width:6px;height:6px;border-radius:50%;background:var(--blue2);box-shadow:0 0 8px var(--blue2);display:inline-block}
@keyframes scroll{to{transform:translateX(-50%)}}

/* ===== 白色区通用 ===== */
section{padding:100px 0}
.sec-head{margin-bottom:56px}
.sec-kicker{display:inline-block;color:#1c62e0;background:var(--blue-soft);padding:6px 18px;border-radius:100px;font-size:12.5px;font-weight:800;letter-spacing:2.5px;margin-bottom:16px}
.sec-head h2{font-size:clamp(26px,3.4vw,38px);font-weight:900;letter-spacing:.5px}
.sec-head p{color:var(--text2);max-width:640px;margin-top:14px;font-size:15px}
.center{text-align:center}
.center p{margin-left:auto;margin-right:auto}

/* ===== 关于我们 ===== */
.about-wrap{display:grid;grid-template-columns:.95fr 1.05fr;gap:64px;align-items:center}
.about-img{position:relative;overflow:hidden;border-radius:20px;aspect-ratio:4/5;transition:transform .5s cubic-bezier(.2,.8,.2,1),box-shadow .5s}
.about-img:hover{transform:translateY(-6px);box-shadow:0 36px 80px rgba(20,40,90,.32)}
.about-img img{width:100%;height:100%;object-fit:cover;border-radius:20px;box-shadow:0 30px 70px rgba(20,40,90,.25);transition:transform .7s cubic-bezier(.2,.8,.2,1),filter .5s}
.about-img:hover img{transform:scale(1.07);filter:brightness(1.04) saturate(1.08)}
.about-img .float-card{position:absolute;left:-22px;bottom:32px;background:#0d1017;border-radius:14px;padding:15px 22px;display:flex;align-items:center;gap:12px;box-shadow:0 20px 50px rgba(0,0,0,.4);transition:left .45s cubic-bezier(.2,.8,.2,1),box-shadow .4s}
.about-img:hover .float-card{left:14px;box-shadow:0 24px 60px rgba(43,125,255,.45)}
.about-img .float-card img{width:38px;height:38px}
.about-img .float-card b{font-size:14.5px;display:block;color:#fff}
.about-img .float-card span{font-size:12px;color:var(--blue2)}
.about-text h3{font-size:clamp(22px,2.6vw,29px);margin-bottom:18px;font-weight:900;line-height:1.4;position:relative;display:inline-block}
.about-text h3::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:3px;background:linear-gradient(90deg,var(--blue1),var(--blue2));border-radius:2px;transition:width .55s cubic-bezier(.2,.8,.2,1)}
.about-text:hover h3::after{width:100%}
.about-text p{color:var(--text2);margin-bottom:14px;font-size:15px}
.about-text p b{color:var(--ink)}
.about-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:26px}
.about-point{display:flex;gap:10px;align-items:center;background:var(--gray-bg);border:1px solid var(--line);padding:14px 16px;border-radius:12px;font-size:14px;font-weight:600;cursor:default;transition:transform .35s cubic-bezier(.2,.8,.2,1),background .35s,border-color .35s,box-shadow .35s,color .3s}
.about-point:hover{transform:translateY(-4px) translateX(3px);background:#fff;border-color:#b9d5ff;box-shadow:0 12px 28px rgba(43,125,255,.18);color:#1c62e0}
.about-point .tick{width:20px;height:20px;border-radius:50%;background:var(--blue1);color:#fff;font-size:12px;font-weight:900;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:transform .5s cubic-bezier(.2,.8,.2,1),box-shadow .35s}
.about-point:hover .tick{transform:rotate(360deg) scale(1.15);box-shadow:0 4px 14px rgba(43,125,255,.5)}

/* ===== 核心优势 ===== */
.adv{background:var(--gray-bg)}
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.adv-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 30px;position:relative;transition:transform .4s cubic-bezier(.2,.8,.2,1),box-shadow .4s,border-color .4s;overflow:hidden}
.adv-card::before{content:"";position:absolute;top:0;left:-100%;width:100%;height:3px;background:linear-gradient(90deg,var(--blue1),var(--blue2),#8FC5FF);transition:left .55s cubic-bezier(.2,.8,.2,1)}
.adv-card::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(43,125,255,.04) 0%,rgba(90,168,255,.10) 100%);opacity:0;transition:opacity .4s;pointer-events:none;border-radius:inherit}
.adv-card:hover{transform:translateY(-8px);box-shadow:0 22px 50px rgba(20,40,90,.18);border-color:#b9d5ff}
.adv-card:hover::before{left:0}
.adv-card:hover::after{opacity:1}
.adv-card:hover .icon{transform:translateY(-4px) scale(1.12) rotate(-6deg);filter:drop-shadow(0 8px 14px rgba(43,125,255,.35))}
.adv-card:hover .no{-webkit-text-stroke:0;color:var(--blue1);transform:translateY(-2px) scale(1.08);text-shadow:0 4px 16px rgba(43,125,255,.35)}
.adv-card:hover h4{color:#1c62e0}
.adv-card .no{position:absolute;top:20px;right:24px;font-size:40px;font-weight:900;color:transparent;-webkit-text-stroke:1.5px #cfe2ff;line-height:1;transition:color .35s,transform .35s,text-shadow .35s}
.adv-card .icon{width:52px;height:52px;margin-bottom:18px;color:var(--blue1);transition:transform .45s cubic-bezier(.2,.8,.2,1),filter .35s}
.adv-card h4{font-size:17px;margin-bottom:10px;transition:color .3s}
.adv-card p{font-size:13.5px;color:var(--text2)}

/* ===== 流程 ===== */
.flow-list{margin-top:14px;border-top:1px solid var(--ink)}
.flow-row{display:grid;grid-template-columns:88px 1fr;gap:48px;padding:38px 8px 38px 0;border-bottom:1px solid var(--line);transition:padding .4s ease;position:relative;align-items:start}
.flow-row:last-child{border-bottom:none}
.flow-row::after{content:"";position:absolute;left:0;bottom:-1px;height:2px;width:0;background:var(--ink);transition:width .55s cubic-bezier(.2,.8,.2,1)}
.flow-row:hover{padding-left:24px}
.flow-row:hover::after{width:72px}
.flow-no{font-family:"SF Mono","JetBrains Mono","Roboto Mono",Consolas,monospace;font-size:30px;color:var(--text2);letter-spacing:2px;font-weight:600;line-height:1;padding-top:8px;transition:color .3s}
.flow-row:hover .flow-no{color:var(--blue1)}
.flow-body h4{font-size:23px;font-weight:800;letter-spacing:-.3px;margin-bottom:14px;display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}
.flow-body .flow-time{font-family:"SF Mono",Consolas,monospace;font-size:12px;color:#1c62e0;font-weight:600;background:var(--blue-soft);padding:5px 12px;border-radius:3px;letter-spacing:.5px}
.flow-body p{font-size:14.5px;color:var(--text2);line-height:1.9;max-width:720px}

/* ===== 资质荣誉（横版图） ===== */
.honor-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.honor-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:all .35s}
.honor-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#b9d5ff}
.honor-card img{width:100%;height:auto}
.honor-card .cap{padding:14px 20px;border-top:1px solid var(--line);font-size:14px;font-weight:700;color:var(--text)}
.honor-card .cap span{float:right;font-size:12px;color:var(--text2);font-weight:500}

/* ===== 客户案例 ===== */
.cases{background:var(--gray-bg)}
.cases-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.case{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;display:flex;flex-direction:column;transition:all .3s}
.case:hover{box-shadow:var(--shadow);border-color:#b9d5ff;transform:translateY(-6px)}
.case-cover{overflow:hidden;height:336px;background:var(--gray-bg)}
.case-cover img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.case:hover .case-cover img{transform:scale(1.04)}
.case-body{padding:28px 30px 30px}
.case-body .industry{display:inline-block;font-size:12px;color:#1c62e0;background:var(--blue-soft);padding:4px 14px;border-radius:100px;font-weight:700;margin-bottom:12px}
.case-body h4{font-size:19px;margin-bottom:10px}
.case-body>p{font-size:14px;color:var(--text2)}
.case-data{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px}
.case-data div{background:var(--gray-bg);border:1px solid var(--line);border-radius:12px;text-align:center;padding:12px 6px}
.case-data b{display:block;color:var(--blue1);font-size:19px;font-weight:900;line-height:1.2}
.case-data span{font-size:11.5px;color:var(--text2)}
.case-link{display:inline-flex;align-items:center;gap:6px;margin-top:20px;color:#1c62e0;font-weight:700;font-size:14px}
.case-link:hover{text-decoration:underline}

/* ===== FAQ ===== */
.faq-grid{display:grid;grid-template-columns:1fr;gap:14px;align-items:start}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border .3s}
.faq-item.open{border-color:#8fbfff}
.faq-q{padding:20px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:800;font-size:15px;gap:14px}
.faq-q .arrow{color:#1c62e0;transition:transform .3s;flex-shrink:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;color:var(--text2);font-size:14px}
.faq-a p{padding:0 24px 20px}
.faq-item.open .faq-a{max-height:520px}
.faq-item.open .arrow{transform:rotate(180deg)}

/* ===== 行业方案自动轮播 ===== */
.ind-sec{padding:100px 0 90px;background:var(--gray-bg)}
.ind-track{overflow:hidden;position:relative;padding:6px 0 26px}
.ind-track::before,.ind-track::after{content:"";position:absolute;top:0;bottom:26px;width:90px;z-index:3;pointer-events:none}
.ind-track::before{left:0;background:linear-gradient(90deg,#f5f6fa,transparent)}
.ind-track::after{right:0;background:linear-gradient(-90deg,#f5f6fa,transparent)}
.ind-scroll{display:flex;gap:22px;width:max-content;animation:ind-scroll 50s linear infinite}
.ind-track:hover .ind-scroll{animation-play-state:paused}
@keyframes ind-scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.ind-card{position:relative;flex:0 0 248px;height:360px;border-radius:18px;overflow:hidden;cursor:pointer;transition:transform .35s,box-shadow .35s}
.ind-card:hover{transform:translateY(-8px);box-shadow:0 26px 56px rgba(20,50,120,.28)}
.ind-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s}
.ind-card:hover img{transform:scale(1.06)}
.ind-card .veil{position:absolute;inset:0}
.ind-card .txt{position:absolute;left:22px;right:22px;top:26px;z-index:2}
.ind-card .txt h4{color:#fff;font-size:20px;font-weight:900;letter-spacing:.5px}
.ind-card .txt p{color:rgba(255,255,255,.88);font-size:12.5px;margin-top:7px;line-height:1.6}
.ind-card .go{position:absolute;left:22px;bottom:22px;z-index:2;color:#fff;font-size:13.5px;font-weight:700;display:flex;align-items:center;gap:6px}
.ind-card .go i{font-style:normal;transition:transform .3s}
.ind-card:hover .go i{transform:translateX(5px)}

/* ===== 联系 ===== */
.contact-wrap{display:grid;grid-template-columns:.92fr 1.08fr;gap:44px;align-items:stretch}
.contact-info{background:#0d1017;border-radius:22px;padding:46px 40px;position:relative;overflow:hidden}
.contact-info::after{content:"";position:absolute;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(43,125,255,.25),transparent 70%);bottom:-110px;right:-90px}
.contact-info h3{font-size:24px;margin-bottom:8px;color:#fff;position:relative;z-index:2}
.contact-info>p{color:#8b96ad;font-size:14px;margin-bottom:26px;position:relative;z-index:2}
.c-item{display:flex;gap:14px;align-items:center;padding:14px 0;border-bottom:1px solid rgba(90,150,255,.18);position:relative;z-index:2}
.c-item:last-of-type{border-bottom:none}
.c-item .ic{width:42px;height:42px;border-radius:11px;background:rgba(43,125,255,.14);border:1px solid rgba(90,168,255,.35);display:flex;align-items:center;justify-content:center;font-size:17px;color:var(--blue2);flex-shrink:0}
.c-item b{display:block;font-size:14.5px;color:#fff}
.c-item span{font-size:13.5px;color:#8b96ad}
.contact-form{background:#fff;border:1px solid var(--line);border-radius:22px;padding:42px 38px;box-shadow:var(--shadow)}
.contact-form h3{font-size:20px;margin-bottom:22px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-form input,.contact-form textarea{width:100%;background:var(--gray-bg);border:1.5px solid var(--line);color:var(--ink);border-radius:11px;padding:14px 17px;font-size:14px;margin-bottom:16px;outline:none;transition:all .2s;font-family:inherit;resize:none}
.contact-form input:focus,.contact-form textarea:focus{border-color:var(--blue1);box-shadow:0 0 0 4px rgba(43,125,255,.14);background:#fff}

/* ===== CTA 全宽蓝横幅（页脚上方） ===== */
.cta-band{width:100%;background:linear-gradient(115deg,#1a6bff,#2B7DFF 45%,#4D97FF);position:relative;overflow:hidden}
.cta-band::before,.cta-band::after{content:"";position:absolute;border-radius:50%;border:60px solid rgba(255,255,255,.10);width:520px;height:520px}
.cta-band::before{top:-300px;left:-140px}
.cta-band::after{bottom:-340px;right:-120px;border-width:80px}
.cta-inner{max-width:900px;margin:0 auto;padding:74px 28px;text-align:center;position:relative;z-index:2}
.cta-inner h3{font-size:clamp(22px,3.2vw,34px);font-weight:900;color:#fff;line-height:1.4;letter-spacing:.5px}
.cta-inner p{color:rgba(255,255,255,.85);margin:14px 0 30px;font-size:15px}
.btn-white{background:#fff;color:#1a5fd6;padding:15px 46px;border-radius:10px;font-weight:800;box-shadow:0 12px 30px rgba(0,20,60,.25);transition:all .25s}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 18px 40px rgba(0,20,60,.35)}

/* ===== 页脚（纯黑） ===== */
footer{background:#000;padding:52px 0 28px}
.footer-inner{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;margin-bottom:14px}
.footer-brand img{width:34px;height:34px}
.footer-desc{font-size:13px;max-width:430px;line-height:1.85;color:#6b7690}
.footer-cols{display:flex;gap:60px;flex-wrap:wrap}
.footer-cols h5{color:#fff;font-size:15px;margin-bottom:14px}
.footer-cols a{display:block;font-size:13px;padding:4px 0;color:#6b7690;transition:color .2s}
.footer-cols a:hover{color:var(--blue2)}
.copyright{border-top:1px solid rgba(255,255,255,.1);margin-top:36px;padding-top:22px;font-size:12.5px;color:#4d576b}
.copyright .copy-row{display:flex;justify-content:space-between;align-items:center;gap:12px 24px;flex-wrap:wrap}
.copyright a{color:#4d576b;transition:color .2s}
.copyright a:hover{color:var(--blue2)}
.copyright .copy-keys{margin-top:10px;line-height:1.9}
.copyright .copy-keys a{color:#5d6780}

/* ===== 回顶 ===== */
.back-top{position:fixed;right:26px;bottom:30px;width:46px;height:46px;border-radius:12px;background:#0d1017;color:var(--blue2);border:1px solid rgba(90,168,255,.45);font-size:20px;font-weight:900;cursor:pointer;box-shadow:0 10px 26px rgba(0,0,0,.35);opacity:0;pointer-events:none;transition:all .3s;z-index:90}
.back-top.show{opacity:1;pointer-events:auto}

/* ===== 入场动效 ===== */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ==========================================================================
   内页公共部分
   ========================================================================== */
.page-body{padding-top:74px}
/* 内页头部（深色横幅） */
.page-hero{background:#04060c;color:#fff;padding:64px 0 54px;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(43,125,255,.22),transparent 70%);right:-140px;top:-200px}
.page-hero .kicker{display:inline-block;color:#8fc0ff;border:1px solid rgba(90,168,255,.4);background:rgba(43,125,255,.12);padding:5px 16px;border-radius:100px;font-size:12px;font-weight:800;letter-spacing:2px;margin-bottom:16px}
.page-hero h1{font-size:clamp(26px,3.4vw,40px);font-weight:900;letter-spacing:.5px;position:relative;z-index:2}
.page-hero p{color:#8b96ad;margin-top:14px;font-size:14.5px;max-width:720px;position:relative;z-index:2}
.page-hero.center{text-align:center}
.page-hero.center p{margin-left:auto;margin-right:auto}
/* 面包屑 */
.crumb{padding:18px 0;font-size:13px;color:var(--text2);border-bottom:1px solid var(--line);background:#fff}
.crumb .wrap{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.crumb a{color:var(--text2)}
.crumb a:hover{color:var(--blue1)}
.crumb .sep{color:#c6cddd}
.crumb .current{color:var(--ink);font-weight:700}

/* ===== 资讯列表页（分类 + 热门文章） ===== */
.news-page{padding:64px 0 90px;background:#fff}
.news-head{text-align:center;margin-bottom:34px}
.news-head h1{font-size:clamp(30px,4vw,52px);font-weight:900;letter-spacing:1px;color:var(--ink);line-height:1.2}
.news-head p{color:var(--text2);margin-top:14px;font-size:15px}
.cat-pills{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin:30px 0 46px}
.cat-pills a{padding:10px 26px;border-radius:100px;font-size:14px;font-weight:700;border:1px solid var(--line);color:var(--text);background:#fff;transition:all .25s}
.cat-pills a:hover{border-color:#b9d5ff;color:#1c62e0;transform:translateY(-2px)}
.cat-pills a.on{background:#0d1017;color:#fff;border-color:#0d1017;box-shadow:0 10px 24px rgba(13,16,23,.28)}
.news-layout{display:grid;grid-template-columns:1fr 348px;gap:36px;align-items:start}
.news-list{display:flex;flex-direction:column;gap:26px}
.news-card{border:1px solid var(--line);border-radius:18px;padding:30px 32px;background:#fff;transition:all .3s}
.news-card:hover{box-shadow:var(--shadow);border-color:#b9d5ff;transform:translateY(-4px)}
.news-card .meta{display:flex;align-items:center;gap:14px;margin-bottom:16px;flex-wrap:wrap}
.news-card .tag{font-size:12px;font-weight:700;color:#1c62e0;background:var(--blue-soft);padding:5px 14px;border-radius:100px}
.news-card .date{font-size:12.5px;color:var(--text2);font-family:"SF Mono",Consolas,monospace}
.news-card h3{font-size:20px;line-height:1.5;font-weight:800;transition:color .25s}
.news-card:hover h3{color:#1c62e0}
.news-card .desc{color:var(--text2);font-size:14px;margin-top:12px}
.news-card .more{display:inline-flex;align-items:center;gap:6px;margin-top:18px;color:#1c62e0;font-weight:700;font-size:14px}
.news-card .more:hover{text-decoration:underline}
.news-empty{padding:60px 0;text-align:center;color:var(--text2)}
.side-card{border:1px solid var(--line);border-radius:18px;padding:26px 26px 20px;background:#fff}
aside.side-card{position:sticky;top:96px}
.side-card h4{font-size:17px;font-weight:800;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.hot-list{display:flex;flex-direction:column;gap:16px}
.hot-item{display:flex;gap:12px;align-items:flex-start;font-size:13.5px;color:var(--text);line-height:1.6}
.hot-item .no{font-family:"SF Mono",Consolas,monospace;font-size:15px;font-weight:800;color:#c3cbd9;flex-shrink:0;width:18px;transition:color .25s}
.hot-item:hover .no{color:var(--blue1)}
.hot-item:hover{color:#1c62e0}
.paginationBox{margin-top:44px;text-align:center}
.paginationBox ul{display:flex!important;justify-content:center;gap:8px;flex-wrap:wrap}
.paginationBox li{float:none!important;margin:0!important;list-style:none}
.paginationBox li a,.paginationBox li span{float:none!important;display:inline-flex!important;align-items:center;justify-content:center;min-width:40px;height:40px;line-height:1;padding:0 13px;margin:0!important;border-radius:10px;border:1px solid var(--line);font-size:14px;color:var(--text);transition:all .25s;background:#fff;box-sizing:border-box}
.paginationBox li a:hover{border-color:#b9d5ff;color:#1c62e0}
.paginationBox li.active span,.paginationBox li.active a{background:#0d1017;color:#fff;border-color:#0d1017}

/* ===== 文章详情页 ===== */
.article-page{padding:56px 0 90px}
.article-wrap{max-width:900px;margin:0 auto}
.article-head{margin-bottom:30px}
.article-head h1{font-size:clamp(24px,3vw,36px);font-weight:900;line-height:1.45;letter-spacing:.3px}
.article-meta{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-top:18px;padding-bottom:22px;border-bottom:1px solid var(--line);font-size:13px;color:var(--text2)}
.article-meta .tag{font-size:12px;font-weight:700;color:#1c62e0;background:var(--blue-soft);padding:5px 14px;border-radius:100px}
.article-content{font-size:16px;color:var(--text);line-height:2;margin-top:30px}
.article-content p{margin-bottom:20px}
.article-content img{max-width:100%;height:auto;border-radius:14px;margin:22px auto;box-shadow:var(--shadow)}
.article-content h2,.article-content h3{color:var(--ink);margin:34px 0 16px;font-weight:800;line-height:1.5}
.article-content h2{font-size:22px}
.article-content h3{font-size:18px}
.article-content ul,.article-content ol{margin:0 0 20px 22px}
.article-content ul li{list-style:disc;margin-bottom:10px}
.article-content ol li{list-style:decimal;margin-bottom:10px}
.article-content table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}
.article-content th,.article-content td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.article-content th{background:var(--gray-bg);font-weight:800;color:var(--ink)}
.article-content blockquote{border-left:3px solid var(--blue1);background:var(--gray-bg);padding:16px 20px;border-radius:0 12px 12px 0;margin:22px 0;color:var(--text)}
.article-foot{margin-top:44px;padding-top:26px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center}
.article-foot a{color:#1c62e0;font-weight:700;font-size:14px}
.article-foot a:hover{text-decoration:underline}
.related-box{margin-top:56px;padding-top:36px;border-top:1px solid var(--line)}
.related-box h4{font-size:19px;font-weight:900;margin-bottom:22px}
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.related-card{border:1px solid var(--line);border-radius:14px;padding:20px 22px;transition:all .3s}
.related-card:hover{border-color:#b9d5ff;box-shadow:0 14px 34px rgba(20,40,90,.12);transform:translateY(-3px)}
.related-card h5{font-size:15px;font-weight:800;line-height:1.55}
.related-card span{display:block;margin-top:10px;font-size:12px;color:var(--text2)}

/* 详情页左右结构（左：正文+上下篇；右：相关推荐侧栏） */
.article-layout{display:flex;gap:40px;align-items:flex-start}
.article-main{flex:1;min-width:0}
.article-side{width:300px;flex-shrink:0;position:sticky;top:90px;align-self:flex-start}
.side-sticky{display:flex;flex-direction:column;gap:20px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 20px}
.side-card h4{font-size:17px;font-weight:900;margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.rel-list{display:flex;flex-direction:column;gap:10px}
.rel-card{display:block;border:1px solid var(--line);border-radius:12px;padding:14px 16px;transition:all .25s}
.rel-card:hover{border-color:#b9d5ff;background:var(--gray-bg);transform:translateY(-2px)}
.rel-card h5{font-size:14px;font-weight:700;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card span{display:block;margin-top:8px;font-size:12px;color:var(--text2)}
.side-more{display:block;margin-top:16px;text-align:center;font-size:13px;font-weight:700;color:#1c62e0}
.side-more:hover{text-decoration:underline}
.side-cta{background:linear-gradient(150deg,#0d1017,#1a2b52);border-radius:16px;padding:24px 20px;text-align:center}
.side-cta h5{color:#fff;font-size:16px;font-weight:800}
.side-cta p{color:rgba(255,255,255,.65);font-size:12.5px;margin:10px 0 16px}
.side-cta .btn{display:inline-block;background:var(--blue1);color:#fff;font-size:13px;font-weight:700;padding:10px 26px;border-radius:100px;transition:all .25s}
.side-cta .btn:hover{background:#1c62e0;transform:translateY(-2px)}

/* 上一条 / 下一条 */
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:40px}
.nav-item{display:flex;flex-direction:column;gap:8px;border:1px solid var(--line);border-radius:14px;padding:16px 18px;transition:all .25s;min-width:0}
a.nav-item:hover{border-color:#b9d5ff;box-shadow:0 10px 26px rgba(20,40,90,.1);transform:translateY(-2px)}
.nav-item .nav-label{font-size:12px;font-weight:700;color:#1c62e0}
.nav-item .nav-title{font-size:13.5px;font-weight:700;color:var(--ink);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.nav-item.is-empty .nav-label{color:var(--text2)}
.nav-item.is-empty .nav-title{color:var(--text2);font-weight:400}
.nav-next{text-align:right;align-items:flex-end}

/* 案例数据条（详情页用，后台正文可插入） */
.data-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:26px 0}
.data-strip div{background:var(--gray-bg);border:1px solid var(--line);border-radius:14px;text-align:center;padding:18px 10px}
.data-strip b{display:block;color:var(--blue1);font-size:24px;font-weight:900;line-height:1.2}
.data-strip span{font-size:12.5px;color:var(--text2)}

/* 联系页地图 */
.map-box{margin-top:44px;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}
.map-box iframe{display:block;border:0}

/* ===== 响应式 ===== */
@media (max-width:1100px){
  .news-layout{grid-template-columns:1fr}
  .side-card{position:static}
}
@media (max-width:960px){
  .nav-links{position:fixed;top:74px;right:0;left:0;background:rgba(6,8,14,.98);flex-direction:column;align-items:stretch;padding:16px 24px 24px;gap:14px;display:none;border-bottom:1px solid rgba(90,150,255,.2)}
  .nav-links.show{display:flex}
  .nav-links a{padding:10px 0;font-size:16px}
  .btn-workbench{text-align:center;margin-top:6px}
  .menu-toggle{display:block}
  .hero-inner{grid-template-columns:1fr;padding:130px 28px}
  .ai-card{max-width:500px;margin:0 auto}
  .about-wrap,.contact-wrap{grid-template-columns:1fr}
  .article-layout{flex-direction:column;gap:44px}
  .article-side{width:100%;position:static}
  .side-sticky{position:static}
  .rel-card h5{-webkit-line-clamp:1}
  .adv-grid{grid-template-columns:1fr 1fr}
  .honor-grid,.cases-grid,.related-grid{grid-template-columns:1fr 1fr}
  .flow-row{grid-template-columns:64px 1fr;gap:28px;padding:30px 0}
  .flow-row:hover{padding-left:14px}
  .flow-no{font-size:24px;padding-top:6px}
  .flow-body h4{font-size:19px}
  .flow-body p{font-size:13.5px;line-height:1.8}
}
@media (max-width:600px){
  section{padding:70px 0}
  .adv-grid,.honor-grid,.cases-grid,.form-row,.about-points,.related-grid{grid-template-columns:1fr}
  .case-data{grid-template-columns:repeat(3,1fr)}
  .hero-trust{display:grid;grid-template-columns:1fr 1fr;gap:22px 0}
  .hero-trust div{padding:0 18px;border-left:1px solid rgba(90,150,255,.18)}
  .hero-trust div:nth-child(odd){padding-left:0;border-left:none}
  .about-img .float-card{left:10px}
  .flow-row{grid-template-columns:48px 1fr;gap:20px;padding:24px 0}
  .flow-row:hover{padding-left:10px}
  .flow-no{font-size:20px}
  .flow-body h4{font-size:17px;gap:10px}
  .flow-body .flow-time{font-size:11px;padding:3px 9px}
  .news-card{padding:24px 20px}
  .news-card h3{font-size:17px}
  .page-hero{padding:44px 0 38px}
  .data-strip{grid-template-columns:1fr}
}

/* 仅供屏幕阅读器与搜索引擎识别的隐藏文本：用于在 H1 中补充核心关键词而不影响视觉设计 */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ===== 网站地图 /sitemap.html ===== */
.sm-block{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 30px;margin-bottom:24px;box-shadow:0 8px 28px rgba(20,40,90,.05)}
.sm-title{font-size:20px;font-weight:800;color:var(--ink);margin-bottom:16px;padding-left:14px;position:relative}
.sm-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:linear-gradient(180deg,var(--blue1),var(--blue2))}
.sm-count{font-size:13px;font-weight:500;color:var(--text2);margin-left:10px}
.sm-list{display:grid;grid-template-columns:1fr 1fr;gap:8px 26px}
.sm-list-3col{grid-template-columns:repeat(3,1fr)}
.sm-list li{display:flex;align-items:baseline;gap:8px;padding:7px 0;border-bottom:1px dashed var(--line);min-width:0}
.sm-list a{color:#1c62e0;font-size:14.5px;transition:color .2s;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sm-list a:hover{color:var(--blue1);text-decoration:underline}
.sm-desc{color:var(--text2);font-size:12.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.sm-tag{flex:none;font-size:12px;color:var(--text2);background:var(--gray-bg);border-radius:100px;padding:1px 9px}
.sm-tip{color:var(--text2);font-size:13.5px;margin-top:4px}
.sm-tip a{color:#1c62e0}
@media(max-width:900px){.sm-list,.sm-list-3col{grid-template-columns:1fr}}