/* ============================================================
   BONDNS 邦德网络 · 全站共享样式
   配色：深海军墨 #0E1420 / 暖骨 #F3F0EA / 信号橙 #FF4D1C
   ============================================================ */
:root{
  --ink:#0B101C;
  --ink-2:#131B2A;
  --ink-3:#1A2334;
  --paper:#F4F1EB;
  --paper-2:#E8E3D9;
  --text:#17191F;
  --muted:#5E5F66;
  --muted-d:rgba(255,255,255,.65);
  --line:rgba(23,25,31,.14);
  --line-d:rgba(255,255,255,.1);
  --accent:#FF4D1C;
  --accent-soft:rgba(255,77,28,.12);
  --serif:"Microsoft YaHei UI","Microsoft YaHei","PingFang SC","Source Han Serif SC","Noto Serif SC",serif;
  --sans:"PingFang SC","Microsoft YaHei UI","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
a{outline:none;-webkit-tap-highlight-color:transparent}
a:focus{outline:none}
a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
html{scroll-behavior:smooth;overflow-y:scroll}
body{font-family:var(--sans);background:var(--paper);color:var(--text);line-height:1.75;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;font-size:15px;letter-spacing:.02em}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
a[href^="tel"],a[href^="mailto"]{text-decoration:none}
ul{list-style:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 28px}

/* ===== 顶部导航 ===== */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .3s,border-color .3s}
.nav.scrolled{background:rgba(14,20,32,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--line-d)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:76px}
.logo{display:flex;align-items:center;gap:12px;color:#fff;font-weight:700;font-size:18px;letter-spacing:.5px}
.logo-mark{width:40px;height:40px;flex:0 0 40px}
.logo-text{font-family:var(--serif);font-size:24px;font-weight:900;letter-spacing:2px;line-height:1}
.logo small{font-size:11px;font-weight:400;color:var(--muted-d);letter-spacing:3px;display:block;line-height:1.4;margin-top:2px}
.nav-links{display:flex;gap:26px}
.nav-links a{color:rgba(255,255,255,.7);font-size:14px;transition:color .2s}
.nav-links a:hover,.nav-links a.on{color:#fff}
.nav-cta{background:linear-gradient(135deg,#FF4D1C,#FF7A4D);color:#fff;padding:10px 22px;border-radius:999px;font-size:14px;font-weight:500;transition:transform .3s,box-shadow .3s,filter .3s}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(255,77,28,.4);filter:brightness(1.05)}
.burger{display:none;background:linear-gradient(135deg,#FF4D1C,#FF7A4D);border:0;cursor:pointer;width:44px;height:44px;border-radius:10px;transition:background .3s}
.burger:hover{filter:brightness(1.1)}
.burger span{display:block;width:22px;height:2px;background:#fff;margin:5px auto;transition:.3s}

/* ===== 首页 Hero ===== */
.hero{background:var(--ink);color:#fff;position:relative;overflow:hidden;padding:170px 0 0}
.hero::before{content:"";position:absolute;top:-20%;right:-10%;width:640px;height:640px;background:radial-gradient(circle,rgba(255,77,28,.22),transparent 65%);pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);background-size:24px 24px;pointer-events:none;mask-image:linear-gradient(to bottom,#000,transparent 70%)}
.hero .wrap{position:relative;z-index:2}
.hero-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--muted-d);border:1px solid var(--line-d);padding:7px 16px;border-radius:999px;margin-bottom:36px}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.hero h1{font-family:var(--serif);font-weight:900;font-size:clamp(40px,6.4vw,82px);line-height:1.12;letter-spacing:1px;max-width:14em}
.hero h1 em{font-style:normal;background:linear-gradient(120deg,#FF4D1C,#ff8a3d 60%,#FF4D1C);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.hero-sub{margin-top:28px;max-width:560px;color:var(--muted-d);font-size:16px;font-weight:300}
.hero-btns{margin-top:40px;display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 32px;border-radius:999px;font-size:15px;font-weight:500;transition:.25s;cursor:pointer;border:0}
.btn-primary{background:linear-gradient(135deg,#FF4D1C,#ff6a2c);color:#fff;box-shadow:0 8px 24px rgba(255,77,28,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(255,77,28,.45)}
.btn-ghost{border:1px solid var(--line-d);color:#fff;background:rgba(255,255,255,.03);backdrop-filter:blur(8px)}
.btn-ghost:hover{border-color:rgba(255,255,255,.4);background:rgba(255,255,255,.08)}
.hero-stats{margin-top:80px;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line-d)}
.hero-stats div{padding:28px 0 36px}
.hero-stats div+div{border-left:1px solid var(--line-d);padding-left:32px}
.hero-stats b{font-family:var(--serif);font-size:34px;font-weight:700;display:block;position:relative;padding-bottom:14px}
.hero-stats b::after{content:"";position:absolute;left:0;bottom:0;width:32px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .8s .5s cubic-bezier(.22,1,.36,1)}
.hero-stats.in b::after{transform:scaleX(1)}
.hero-stats b span{color:var(--accent);font-size:20px}
.hero-stats p{font-size:13px;color:var(--muted-d);margin-top:6px}

/* ===== 客户墙（横向滑动） ===== */
.marquee-wrap{background:var(--ink);border-top:1px solid var(--line-d);display:flex;align-items:center;gap:12px;padding:24px 28px;max-width:1200px;margin:0 auto;width:100%;box-sizing:border-box}
.marquee{flex:1;overflow-x:auto;scrollbar-width:none;scroll-behavior:smooth}
.marquee::-webkit-scrollbar{display:none}
.marquee-track{display:flex;gap:48px;width:max-content;white-space:nowrap;align-items:center;padding:0 4px}
.marquee-track a{color:var(--muted-d);text-decoration:none;font-size:14px;letter-spacing:1px;transition:color .3s;flex-shrink:0}
.marquee-track b{color:#fff;font-weight:500;transition:color .3s}
.marquee-track a:hover b{color:var(--accent)}
.marquee-track i{font-style:normal;color:var(--accent)}
.mq-btn{width:36px;height:36px;border-radius:50%;border:1px solid var(--line-d);background:transparent;color:#fff;cursor:pointer;display:grid;place-items:center;flex-shrink:0;transition:.3s}
.mq-btn:hover{background:var(--accent);border-color:var(--accent)}
.mq-btn svg{width:16px;height:16px;stroke:#fff;fill:none;stroke-width:2}
.mq-prev{margin-left:20px}
.mq-next{margin-right:20px}
@media(max-width:600px){
  .marquee-wrap{padding:16px 0;gap:8px}
  .marquee-track{gap:24px;font-size:13px}
  .mq-btn{width:30px;height:30px}
  .mq-prev{margin-left:12px}
  .mq-next{margin-right:12px}
}

/* ===== 内页 Page Hero ===== */
.pagehero{background:var(--ink);color:#fff;position:relative;overflow:hidden;padding:0;min-height:280px;display:flex;align-items:center;padding-top:80px}
.pagehero::before{content:"";position:absolute;bottom:-40%;left:-5%;width:500px;height:500px;background:radial-gradient(circle,rgba(255,77,28,.18),transparent 65%);pointer-events:none}
.pagehero .wrap{position:relative;z-index:2;width:100%}
.pagehero .crumb{display:none}
.pagehero h1{font-family:var(--serif);font-weight:900;font-size:clamp(34px,5vw,58px);line-height:1.2;position:relative;display:inline-block}
.pagehero h1::after{content:"";position:absolute;left:0;bottom:-8px;width:60px;height:4px;background:var(--accent);border-radius:2px;animation:lineGrow .8s .3s cubic-bezier(.22,1,.36,1) forwards;transform:scaleX(0);transform-origin:left}
@keyframes lineGrow{to{transform:scaleX(1);width:120px}}
.pagehero p{margin-top:24px;color:var(--muted-d);max-width:560px;font-weight:300}
.pagehero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);background-size:24px 24px;pointer-events:none}

/* 各内页 banner 差异化光晕 */
.pg-about .pagehero::before{left:auto;right:-5%;bottom:-40%;background:radial-gradient(circle,rgba(255,77,28,.22),transparent 65%)}
.pg-contact .pagehero::before{left:30%;bottom:-60%;background:radial-gradient(circle,rgba(80,120,255,.2),transparent 65%)}
.pg-case .pagehero::before{left:10%;bottom:-30%;background:radial-gradient(circle,rgba(255,77,28,.15),transparent 65%)}
.pg-app .pagehero::before{left:auto;right:10%;bottom:-50%;background:radial-gradient(circle,rgba(46,204,140,.18),transparent 65%)}
.pg-service .pagehero::before{left:40%;bottom:-50%;background:radial-gradient(circle,rgba(255,160,60,.18),transparent 65%)}
.pg-process .pagehero::before{left:20%;bottom:-40%;background:radial-gradient(circle,rgba(80,120,255,.18),transparent 65%)}
.pg-adva .pagehero::before{left:auto;right:20%;bottom:-40%;background:radial-gradient(circle,rgba(255,77,28,.2),transparent 65%)}

/* ===== 通用 section ===== */
.section{padding:70px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:20px}
.sec-head h2{font-family:var(--serif);font-weight:900;font-size:clamp(30px,3.8vw,48px);line-height:1.25;letter-spacing:1px}
.sec-head p{color:var(--muted);max-width:420px;font-size:15px;line-height:1.8}
.sec-head .idx{font-size:12px;color:var(--accent);font-weight:700;letter-spacing:4px;display:flex;align-items:center;gap:12px;margin-bottom:16px;text-transform:uppercase}
.sec-head .idx::before{content:"";width:32px;height:2px;background:var(--accent)}
.on-dark p{color:var(--muted-d)}

/* ===== 服务 Bento ===== */
.bento{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.svc{background:#fff;border:1px solid var(--line);border-radius:20px;padding:40px;transition:box-shadow .35s,border-color .35s}
.svc:hover{box-shadow:0 20px 50px rgba(11,16,28,.1);border-color:rgba(255,77,28,.25)}
.svc:hover{transform:translateY(-4px);box-shadow:0 24px 48px rgba(14,20,32,.1)}
.svc.wide{grid-column:span 2;display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center;background:var(--ink);color:#fff;border-color:var(--ink)}
.svc-num{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:2px}
.svc h3{font-family:var(--serif);font-size:22px;font-weight:700;margin:0 0 12px;line-height:1.4}
.svc-head{display:flex;align-items:center;gap:16px;margin-bottom:16px}
.svc-head .svc-icon{margin:0}
.svc.wide h3{font-size:32px}
.svc p{color:var(--muted);font-size:14.5px;line-height:1.8;max-width:440px}
.svc.wide p{color:var(--muted-d)}
.svc-icon{width:56px;height:56px;border-radius:14px;background:var(--accent-soft);display:grid;place-items:center;margin-bottom:22px}
.svc.wide .svc-icon{background:rgba(255,77,28,.18)}
.svc-icon svg{width:28px;height:28px;stroke:var(--accent);fill:none;stroke-width:1.6}
.svc .more{display:inline-flex;align-items:center;gap:6px;margin-top:22px;font-size:13px;font-weight:500;color:#fff;letter-spacing:.5px;padding:10px 24px;background:linear-gradient(135deg,#FF4D1C,#ff6a2c);border-radius:999px;box-shadow:0 6px 20px rgba(255,77,28,.3);transition:.3s;position:relative;overflow:hidden}
.svc .more::after{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);transition:left .6s ease}
.svc .more:hover::after{left:100%}
.svc .more:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(255,77,28,.4)}
.chips{display:flex;gap:10px;flex-wrap:wrap}
.chips span{background:rgba(255,255,255,.08);padding:9px 16px;border-radius:999px;font-size:13px;color:#fff;transition:all .3s;cursor:default}
.chips span:hover{background:var(--accent);transform:translateY(-2px);box-shadow:0 6px 16px rgba(255,77,28,.3)}

/* ===== 案例网格 ===== */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case{position:relative;border-radius:18px;display:flex;flex-direction:column;background:var(--ink-2);border:1px solid rgba(255,255,255,.06);overflow:hidden;transition:border-color .3s,box-shadow .3s}
.case:hover{border-color:rgba(255,77,28,.35);box-shadow:0 20px 40px rgba(0,0,0,.4)}
.case:active{transform:scale(.98)}
.case > img{display:block;width:100%;height:230px;object-fit:cover;transition:filter .4s}
.case:hover > img{filter:brightness(1.08)}
.case .cover{display:none}
.case .info{padding:20px 22px 22px;position:relative}
.case .info h4{font-size:16px;font-weight:700;color:#fff;letter-spacing:.2px;transition:color .3s}
.case:hover .info h4{color:var(--accent)}
.case .info p{font-size:12.5px;color:var(--muted-d);margin-top:6px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.case.featured{grid-column:span 2}
.case.featured > img{height:300px}
.case.featured .info h4{font-size:18px}

/* ===== APP 卡片 ===== */
.app-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:22px}
.app-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;transition:transform .3s,box-shadow .3s}
.app-card:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(14,20,32,.12)}
.app-card .screen{border-radius:14px;overflow:hidden;aspect-ratio:9/14;background:var(--paper-2)}
.app-card .screen img{width:100%;height:100%;object-fit:cover;position:static;border-radius:14px;display:block}
.app-card p{text-align:center;margin-top:14px;font-size:14px;font-weight:500}

/* ===== 关于 ===== */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center}
.about-quote{font-family:var(--serif);font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.7}
.about-quote em{font-style:normal;color:var(--accent)}
.about-body{color:var(--muted);font-size:15px;line-height:2}
.about-body + .about-body{margin-top:16px}

/* ===== 优势页：交替行 ===== */
.adva-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:56px 0;border-top:1px solid var(--line);transition:background .4s}
.adva-row:first-child{border-top:0}
.adva-row:last-of-type{border-bottom:1px solid var(--line)}
.adva-row:hover{background:linear-gradient(90deg,rgba(255,77,28,.04),transparent 60%)}
.adva-num{font-family:var(--serif);font-size:72px;font-weight:900;line-height:1;background:linear-gradient(135deg,#FF4D1C,#FFB088);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;opacity:.9}
.adva-row h3{font-family:var(--serif);font-size:28px;font-weight:700;margin:14px 0 14px;line-height:1.4}
.adva-row h3 em{font-style:normal;color:var(--accent);position:relative}
.adva-row p{color:var(--muted);font-size:15px;line-height:1.9}
.adva-bars{margin-top:24px;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.adva-bars span{font-size:13px;color:#fff;background:var(--ink-2);padding:12px 22px;border-radius:999px;display:inline-block;font-weight:500;letter-spacing:.5px;transition:all .3s}
.adva-bars span:hover{background:linear-gradient(135deg,#FF4D1C,#ff7a4d);box-shadow:0 0 24px rgba(255,77,28,.4);transform:translateY(-3px)}
@media (min-width:1024px){
  .adva-bars span{animation:float 5s ease-in-out infinite}
  .adva-bars span:nth-child(1){animation-delay:0s}
  .adva-bars span:nth-child(2){animation-delay:.8s}
  .adva-bars span:nth-child(3){animation-delay:1.6s}
  .adva-bars span:nth-child(4){animation-delay:2.4s}
  @keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
}

/* ===== 流程时间线 ===== */
.timeline-stage{margin-bottom:56px;position:relative;padding-left:24px;border-left:2px solid rgba(255,77,28,.2)}
.timeline-stage h3{font-family:var(--serif);font-size:24px;font-weight:900;margin-bottom:8px}
.timeline-stage .st-sub{color:var(--accent);font-size:13px;font-weight:700;letter-spacing:2px;margin-bottom:24px}
.flow-chips{display:flex;flex-wrap:wrap;gap:12px}
.flow-chips span{background:#fff;border:1px solid var(--line);padding:14px 22px;border-radius:12px;font-size:14px;font-weight:500;transition:transform .3s,box-shadow .3s,border-color .3s;cursor:default}
.flow-chips span:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(14,20,32,.08);border-color:var(--accent)}
.flow-chips b{color:var(--accent);margin-right:8px;font-weight:700}
.flow-chips li b{color:var(--accent);margin-right:8px;font-weight:700}

/* ===== 数据页 ===== */
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:36px}
.stat-card b{font-family:var(--serif);font-size:48px;font-weight:900;color:var(--ink);display:block;line-height:1}
.stat-card b i{font-style:normal;font-size:20px;color:var(--accent);margin-left:4px}
.stat-card h4{font-size:14px;margin:14px 0 10px;font-weight:700}
.stat-card p{font-size:13px;color:var(--muted);line-height:1.7}

/* ===== 服务页九宫格 ===== */
.svc-tile{background:#fff;border:1px solid var(--line);border-radius:16px;padding:32px;transition:.35s cubic-bezier(.22,1,.36,1);position:relative;overflow:hidden}
.svc-tile::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#FF4D1C,#FFB088);transform:scaleX(0);transform-origin:left;transition:transform .4s}
.svc-tile:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(14,20,32,.1)}
.svc-tile:hover::before{transform:scaleX(1)}
.svc-tile h4{font-size:18px;font-weight:700;margin-bottom:8px}
.svc-tile p{color:var(--muted);font-size:14px}
.tile-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}

/* ===== 联系页 ===== */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:36px 32px;transition:.35s cubic-bezier(.22,1,.36,1);position:relative;overflow:hidden}
.contact-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#FF4D1C,#FFB088);transform:scaleX(0);transform-origin:left;transition:transform .4s}
.contact-card:hover{transform:translateY(-4px);box-shadow:0 20px 40px rgba(14,20,32,.1)}
.contact-card:hover::before{transform:scaleX(1)}
.contact-card .lab{font-size:12px;color:var(--accent);font-weight:700;letter-spacing:2px}
.contact-card h4{font-size:20px;margin:12px 0 10px;font-weight:700}
.contact-card p{color:var(--muted);font-size:14px;line-height:1.8}
.mapbox{margin-top:40px;border-radius:18px;overflow:hidden;border:1px solid var(--line);height:420px;background:var(--paper-2)}
.mapbox iframe,.mapbox #allmap{width:100%;height:100%;border:0}

/* ===== 详情页 ===== */
.detail-head{max-width:820px;margin:0 auto;padding-bottom:40px}
.detail-head h1{font-family:var(--serif);font-size:36px;font-weight:900;line-height:1.3}
.detail-head p{color:var(--muted);margin-top:18px;line-height:2;font-size:15px}
.gallery{max-width:1080px;margin:0 auto}
.gallery img{width:100%;margin-bottom:16px;border-radius:8px;background:#1a1f2e;display:block}
.gallery img.lazy{min-height:200px;position:relative}
.gallery img.lazy::before{content:"";position:absolute;top:50%;left:50%;width:24px;height:24px;margin:-12px;border:3px solid rgba(255,255,255,.2);border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.gallery img{width:100%;border-radius:14px;margin-bottom:20px;border:1px solid var(--line);transition:box-shadow .5s,border-color .3s}
.gallery img:hover{box-shadow:0 20px 48px rgba(14,20,32,.15);border-color:rgba(255,77,28,.3)}
.app-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.app-gallery img{margin-bottom:0;transition:box-shadow .5s}
.app-gallery img:hover{box-shadow:0 20px 48px rgba(14,20,32,.15)}
.pager{display:flex;justify-content:space-between;max-width:1080px;margin:40px auto 0;gap:16px}
.pager a{flex:1;background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 22px;font-size:14px;color:var(--muted);transition:.2s}
.pager a:hover{border-color:var(--accent);color:var(--text)}
.pager a.next{text-align:right}

/* ===== 底部 CTA + Footer ===== */
.footer{background:var(--ink);color:#fff;padding-top:110px;position:relative;overflow:hidden}
.footer::before{content:"";position:absolute;bottom:-30%;left:50%;transform:translateX(-50%);width:800px;height:500px;background:radial-gradient(ellipse,rgba(255,77,28,.16),transparent 70%);pointer-events:none}
.cta{text-align:center;position:relative;z-index:2;padding-bottom:90px;border-bottom:1px solid var(--line-d)}
.cta h2{font-family:var(--serif);font-size:clamp(34px,5vw,60px);font-weight:900;line-height:1.25}
.cta h2 em{font-style:normal;color:var(--accent)}
.cta-phone{display:inline-block;margin-top:30px;font-size:clamp(24px,3vw,36px);font-weight:700;letter-spacing:1px}
.cta p{color:var(--muted-d);margin-top:14px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr auto;gap:40px;padding:56px 0;align-items:start}
.foot .foot-grid > div{opacity:0;transform:translateY(20px);transition:opacity .7s cubic-bezier(.22,1,.36,1),transform .7s cubic-bezier(.22,1,.36,1)}
.foot.in .foot-grid > div:nth-child(1){transition-delay:.05s}
.foot.in .foot-grid > div:nth-child(2){transition-delay:.15s}
.foot.in .foot-grid > div:nth-child(3){transition-delay:.25s}
.foot.in .foot-grid > div:nth-child(4){transition-delay:.35s}
.foot.in .foot-grid > div:nth-child(5){transition-delay:.45s}
.foot.in .foot-grid > div{opacity:1;transform:none}
.foot-grid > div:last-child img{transition:box-shadow .3s,transform .3s}
.foot-grid > div:last-child img:hover{box-shadow:0 0 24px rgba(255,77,28,.35);transform:scale(1.05)}
.foot-grid h5{font-size:13px;color:var(--muted-d);margin-bottom:18px;letter-spacing:1px}
.foot-grid a,.foot-grid p{display:block;color:rgba(255,255,255,.8);font-size:14px;line-height:2.1}
.foot-grid a:hover{color:var(--accent)}
.foot-bottom{border-top:1px solid var(--line-d);padding:24px 0;font-size:12.5px;color:var(--muted-d);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
/* 浮动联系 */
.float-contact{position:fixed;right:24px;bottom:90px;z-index:90}
.fc-toggle{width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,#FF4D1C,#FF7A4D);color:#fff;border:0;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(255,77,28,.4);transition:transform .3s,box-shadow .3s}
.fc-toggle:hover{transform:scale(1.08);box-shadow:0 12px 32px rgba(255,77,28,.5)}
.fc-panel{position:absolute;right:0;bottom:64px;width:280px;background:#fff;color:#333;border-radius:0;box-shadow:0 16px 48px rgba(0,0,0,.25);opacity:0;transform:translateY(10px) scale(.95);pointer-events:none;transition:.3s cubic-bezier(.22,1,.36,1)}
.fc-panel.open{opacity:1;transform:none;pointer-events:auto}
.fc-head{background:var(--ink);color:#fff;padding:16px 18px;font-size:14px;display:flex;justify-content:space-between;align-items:center}
.fc-close{background:none;border:0;color:#fff;font-size:22px;cursor:pointer;line-height:1;padding:0 4px}
.fc-item{padding:12px 18px;font-size:13px;border-top:1px solid #f0f0f0;display:flex;align-items:center;gap:10px}

/* ===== 动效 ===== */
.reveal{opacity:0;transform:translateY(40px) scale(.96);transition:opacity .8s cubic-bezier(.22,1,.36,1),transform .8s cubic-bezier(.22,1,.36,1)}
.reveal.in{opacity:1;transform:none}
.reveal-d1{transition-delay:.08s}
.reveal-d2{transition-delay:.16s}
.reveal-d3{transition-delay:.24s}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  .hero .hero-tag,.hero h1,.hero-sub,.hero-btns,.hero-stats{opacity:1;transform:none;animation:none}
  .hero-orb{animation:none}
}

/* ===== 升级：滚动进度条 ===== */
.scroll-progress{position:fixed;top:0;left:0;height:2px;background:var(--accent);width:0;z-index:200;transition:width .1s linear}

/* ===== 升级：Hero 入场 ===== */
.hero-orb{position:absolute;border-radius:50%;filter:blur(80px);opacity:.5;z-index:1;pointer-events:none;animation:orbFloat 12s ease-in-out infinite alternate}
.hero-orb.o1{width:420px;height:420px;background:radial-gradient(circle,rgba(255,77,28,.35),transparent 70%);top:-10%;right:5%}
.hero-orb.o2{width:300px;height:300px;background:radial-gradient(circle,rgba(80,120,255,.25),transparent 70%);bottom:10%;left:-5%;animation-delay:-6s}
@keyframes orbFloat{from{transform:translate(0,0) scale(1)}to{transform:translate(40px,-30px) scale(1.15)}}

/* ===== 升级：按钮流光 ===== */
.btn{position:relative;overflow:hidden}
.btn-primary::after{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);transition:left .6s ease}
.btn-primary:hover::after{left:100%}
.btn .arr{display:inline-block;transition:transform .25s}
.btn:hover .arr{transform:translateX(4px)}

/* ===== 升级：导航下划线 ===== */
.nav-links a{position:relative}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--accent);transition:width .3s}
.nav-links a:hover::after,.nav-links a.on::after{width:100%}

/* ===== 升级：案例卡片悬停 ===== */
.case{overflow:hidden;border:1px solid rgba(255,255,255,.06);transition:border-color .3s,transform .3s}
.case:hover{border-color:rgba(255,77,28,.4)}
.case > img{transition:filter .4s}
.case:hover > img{filter:brightness(1.08)}
.case .info h4{transition:color .3s}
.case:hover .info h4{color:var(--accent)}
.more-tile{transition:border-color .3s,background .3s}
.more-tile:hover{border-color:rgba(255,77,28,.5)!important}
.more-tile:hover span{color:var(--accent)!important}
.case .go{position:absolute;top:18px;right:18px;width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.12);backdrop-filter:blur(8px);display:grid;place-items:center;color:#fff;opacity:0;transform:translate(-8px,8px);transition:.35s;z-index:2}
.case:hover .go{opacity:1;transform:none}
.case .go svg{width:16px;height:16px;stroke:#fff;fill:none;stroke-width:2}

/* ===== 升级：服务卡片 ===== */
.svc{position:relative;overflow:hidden}
.svc .svc-icon{transition:background .35s}
.svc:hover .svc-icon{background:var(--accent)}
.svc:hover .svc-icon svg{stroke:#fff}
.svc .more{transition:color .3s}
.svc:not(.wide):hover .more{color:#fff}
.svc.wide:hover .more{color:#fff}

/* ===== 升级：APP 卡片悬停 ===== */
.app-card .screen{transition:transform .4s}
.app-card:hover .screen{transform:scale(1.02)}

/* ===== 升级：走马灯悬停暂停 ===== */
.marquee:hover .marquee-track{animation-play-state:paused}

/* ===== 升级：数字滚动 ===== */
.hero-stats b{font-variant-numeric:tabular-nums}

/* ===== 升级：LOGO 节点动画 ===== */
.logo-mark circle,.logo-mark rect{transition:transform .4s}
.logo:hover .logo-mark circle:first-of-type{transform:translate(-2px,-2px)}
.logo:hover .logo-mark circle:last-of-type{transform:translate(2px,2px)}

/* ===== 升级：回到顶部 ===== */
#totop{position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;cursor:pointer;opacity:0;pointer-events:none;transition:.3s;z-index:99;box-shadow:0 8px 24px rgba(255,77,28,.4)}
#totop.show{opacity:1;pointer-events:auto}
#totop:hover{transform:translateY(-3px)}
#totop svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:2.5}

/* ===== 响应式 ===== */
/* 平板 768-1023 */
@media (min-width:768px) and (max-width:1023px){
  .wrap{padding:0 32px}
  .nav-links,.nav-cta{display:none}
  .burger{display:block}
  .nav.open .nav-links{display:flex;position:fixed;top:76px;left:0;right:0;background:var(--ink);flex-direction:column;padding:24px 32px;gap:18px;border-bottom:1px solid var(--line-d)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .case.featured{grid-column:span 2}
  #moreTile{grid-column:span 2}
  .bento{grid-template-columns:repeat(2,1fr)}
  .svc.wide{grid-column:span 2}
  .tile-grid{grid-template-columns:repeat(2,1fr)!important}
  .tile-grid[style]{grid-template-columns:repeat(2,1fr)!important}
  .adva-row{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr}
  .stat-grid,.contact-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .foot-grid > div:nth-child(1){grid-column:span 2}
  #moreTile{min-height:140px!important}
  .adva-bars span{font-size:12px;padding:8px 14px}
}
/* 手机 <768 */
@media (max-width:767px){
  .wrap{padding:0 20px}
  .nav-links,.nav-cta{display:none}
  .burger{display:block}
  .nav.open .nav-links{display:flex;position:fixed;top:76px;left:0;right:0;background:var(--ink);flex-direction:column;padding:24px 20px;gap:18px;border-bottom:1px solid var(--line-d)}
  .hero{padding-top:130px}
  .hero-stats{grid-template-columns:1fr}
  .hero-stats div+div{border-left:0;border-top:1px solid var(--line-d);padding-left:0}
  .bento{grid-template-columns:1fr}
  .svc.wide{grid-column:span 1;grid-template-columns:1fr}
  .case-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .case.featured{grid-column:span 2}
  #moreTile{grid-column:span 2}
  .case > img{height:160px}
  .case.featured > img{height:200px}
  .case .info{padding:14px}
  .case .info h4{font-size:14px}
  .case .info p{display:none}
  .app-grid{grid-template-columns:repeat(2,1fr)}
  .app-gallery{grid-template-columns:repeat(2,1fr)}
  .stat-grid,.contact-grid{grid-template-columns:1fr}
  .tile-grid{grid-template-columns:1fr!important;display:grid!important}
  .tile-grid[style]{grid-template-columns:1fr!important;display:grid!important}
  .adva-row{grid-template-columns:1fr;gap:20px}
  .about-grid{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:24px}
  .foot-grid > div:nth-child(1){grid-column:span 2}
  .foot-grid > div:nth-child(5){display:flex;flex-direction:column;align-items:flex-start;gap:8px}
  .section{padding:70px 0}
  .pagehero{padding:100px 0 30px;min-height:200px}
  .svc-head{flex-wrap:nowrap;align-items:flex-start}
  .svc-head h3{font-size:18px!important;white-space:normal!important;flex:1;margin-top:2px}
  .chips{flex-wrap:wrap;gap:6px}
  .chips span{font-size:11px;padding:6px 10px;white-space:normal}
  .cta{text-align:center!important;max-width:500px;margin-left:auto;margin-right:auto}
  .cta h2{font-size:32px!important;text-align:center!important}
  .cta p{font-size:13px!important;line-height:1.8!important;text-align:center!important}
  .hero-btns{flex-direction:column;align-items:stretch}
  .svc-tile{text-align:center;padding:20px 14px!important}
  .flow-chips{flex-wrap:wrap;gap:8px}
  .flow-chips span{font-size:12px;padding:8px 12px}
  .svc,.case,.svc-tile,.app-card{transition:transform .3s,box-shadow .3s}
  .svc:active,.case:active,.svc-tile:active,.app-card:active{transform:scale(.97)}
  .svc-tile{transition:transform .3s,box-shadow .3s}
  .svc-tile.in{animation:pop .6s ease-out}
  @keyframes pop{0%{transform:scale(.95);opacity:0}100%{transform:scale(1);opacity:1}}
  #moreTile{min-height:100px!important}
  .gallery img.reveal{opacity:1;transform:none}
  .adva-bars{flex-wrap:wrap;justify-content:center;gap:8px}
  .adva-bars span{font-size:12px;padding:8px 14px}
  .adva-row:nth-of-type(3) .adva-bars{display:grid;grid-template-columns:1fr 1fr;gap:8px}
  .adva-row:nth-of-type(3) .adva-bars span{text-align:center}
  .logo-mark{width:52px;height:52px}
  .logo span{font-size:18px}
  .nav-inner{align-items:center}
  .burger{align-self:center}
}