/* ===== 基础 ===== */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
:root{
  --bg:#ffffff;
  --bg2:#f7f8fb;
  --bg3:#eef0f5;
  --fg:#0e1118;
  --mut:#6b7184;
  --line:#e7e9f0;
  --line2:#d6dae5;
  --acc:#3b6cff;
  --acc2:#7c3aed;
  --acc3:#ff4a6b;
  --grad:linear-gradient(135deg,#3b6cff 0%,#7c3aed 50%,#ff4a6b 100%);
  --shadow-sm:0 1px 2px rgba(15,17,24,.04);
  --shadow:0 10px 40px -10px rgba(15,17,24,.12);
  --shadow-lg:0 30px 60px -20px rgba(15,17,24,.18);
  --rad:16px;
  --rad-lg:24px;
}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--fg);
  overflow-x:hidden;line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
.container{max-width:1240px;margin:0 auto;padding:0 28px}

/* ===== 顶部进度条 ===== */
.progress-bar{
  position:fixed;top:0;left:0;height:2px;
  background:var(--grad);
  width:0;z-index:200;
  transition:width .1s linear;
}

/* ===== 导航 ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.7);
  backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:.3s;
}
.nav.scrolled{
  background:rgba(255,255,255,.92);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-sm);
}
.nav-inner{
  max-width:1320px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 28px;gap:32px;
}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{
  width:42px;height:42px;border-radius:12px;
  background:var(--grad);
  display:grid;place-items:center;font-size:20px;font-weight:900;color:#fff;
  box-shadow:0 8px 20px -6px rgba(124,58,237,.4);
  position:relative;overflow:hidden;
}
.logo-mark::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,transparent 40%,rgba(255,255,255,.35) 50%,transparent 60%);
  transform:translateX(-100%);
  transition:transform .6s;
}
.logo:hover .logo-mark::after{transform:translateX(100%)}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-text b{font-size:15px;font-weight:900;letter-spacing:1px}
.logo-text span{font-size:11px;color:var(--mut);letter-spacing:1px;margin-top:2px}

.nav-menu{display:flex;gap:32px;flex:1;justify-content:center}
.nav-menu a{
  position:relative;font-size:14px;font-weight:600;color:#3a3f50;
  padding:6px 0;transition:color .3s;
}
.nav-menu a:hover{color:var(--acc)}
.nav-menu a::after{
  content:"";position:absolute;left:50%;bottom:-2px;width:0;height:2px;
  background:var(--grad);transition:.3s;transform:translateX(-50%);
}
.nav-menu a:hover::after{width:100%}
.nav-right{display:flex;align-items:center;gap:14px}
.nav-phone{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:99px;
  background:var(--fg);color:#fff;font-size:13px;font-weight:700;
  transition:transform .25s,box-shadow .25s;
}
.nav-phone:hover{transform:translateY(-2px);box-shadow:0 10px 20px -6px rgba(15,17,24,.3)}
.phone-ico{font-size:14px}
.nav-burger{
  display:none;background:none;border:0;cursor:pointer;width:36px;height:36px;
  position:relative;border-radius:8px;
}
.nav-burger:hover{background:var(--bg3)}
.nav-burger span{
  position:absolute;left:8px;right:8px;height:2px;background:var(--fg);border-radius:2px;
  transition:.3s;
}
.nav-burger span:nth-child(1){top:11px}
.nav-burger span:nth-child(2){top:17px}
.nav-burger span:nth-child(3){top:23px}
.nav-burger.active span:nth-child(1){top:17px;transform:rotate(45deg)}
.nav-burger.active span:nth-child(2){opacity:0}
.nav-burger.active span:nth-child(3){top:17px;transform:rotate(-45deg)}

/* ===== Hero ===== */
.hero{
  position:relative;padding:140px 0 0;
  overflow:hidden;
  background:
    radial-gradient(ellipse at 80% 0%, rgba(124,58,237,.08), transparent 50%),
    radial-gradient(ellipse at 0% 30%, rgba(59,108,255,.06), transparent 50%),
    #fff;
}
.hero-deco{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:0}
.deco-circle{
  position:absolute;border-radius:50%;
  filter:blur(60px);opacity:.5;
}
.deco-circle.c1{
  width:400px;height:400px;background:rgba(59,108,255,.18);
  top:-100px;right:-100px;
  animation:float 12s ease-in-out infinite;
}
.deco-circle.c2{
  width:300px;height:300px;background:rgba(255,74,107,.14);
  top:30%;left:-100px;
  animation:float 15s ease-in-out infinite reverse;
}
.deco-circle.c3{
  width:350px;height:350px;background:rgba(124,58,237,.12);
  bottom:10%;right:20%;
  animation:float 18s ease-in-out infinite;
}
@keyframes float{
  0%,100%{transform:translate(0,0) scale(1)}
  33%{transform:translate(30px,-30px) scale(1.05)}
  66%{transform:translate(-20px,20px) scale(.95)}
}
.deco-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(15,17,24,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(15,17,24,.04) 1px,transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(ellipse at center,#000 30%,transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at center,#000 30%,transparent 70%);
}

.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center;
  min-height:680px;
}
.hero-left{padding:20px 0}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:99px;
  background:#fff;border:1px solid var(--line);
  font-size:12px;letter-spacing:1px;color:var(--mut);
  margin-bottom:24px;
  box-shadow:var(--shadow-sm);
}
.tag-dot{
  width:6px;height:6px;border-radius:50%;background:var(--acc3);
  animation:pulse 1.6s ease-in-out infinite;
}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(255,74,107,.5)}50%{box-shadow:0 0 0 8px rgba(255,74,107,0)}}

.hero-title{
  font-size:clamp(40px,5.5vw,72px);
  line-height:1.1;letter-spacing:-1.5px;font-weight:900;
  margin-bottom:24px;color:var(--fg);
}
.hero-title .grad{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  background-size:200% 200%;
  animation:gradMove 6s ease infinite;
}
@keyframes gradMove{
  0%,100%{background-position:0% 50%}
  50%{background-position:100% 50%}
}
.hero-sub{
  font-size:clamp(15px,1.4vw,17px);color:var(--mut);
  max-width:540px;margin-bottom:36px;line-height:1.7;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:48px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:99px;
  font-size:14px;font-weight:700;letter-spacing:.5px;
  transition:transform .25s,box-shadow .25s,background .25s,color .25s;
  cursor:pointer;border:0;
}
.btn .arrow{display:inline-block;transition:transform .25s}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{
  background:var(--fg);color:#fff;
  box-shadow:0 12px 28px -10px rgba(15,17,24,.4);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 40px -10px rgba(15,17,24,.5)}
.btn-line{
  background:#fff;color:var(--fg);
  border:1px solid var(--line2);
}
.btn-line:hover{background:var(--fg);color:#fff;border-color:var(--fg);transform:translateY(-3px)}

.hero-trust{
  display:flex;align-items:center;gap:28px;flex-wrap:wrap;
  padding-top:28px;border-top:1px solid var(--line);
}
.trust-item{display:flex;align-items:baseline;gap:4px}
.trust-item b{
  font-size:clamp(26px,3.2vw,36px);font-weight:900;color:var(--fg);
  letter-spacing:-1px;
}
.trust-item span{font-size:14px;color:var(--mut);font-weight:600;margin-right:4px}
.trust-item em{font-size:12px;color:var(--mut);font-style:normal;letter-spacing:1px}
.trust-divider{width:1px;height:32px;background:var(--line)}

/* Hero 右侧卡片 */
.hero-right{
  position:relative;height:520px;
}
.hero-card{
  position:absolute;
  background:#fff;
  border-radius:var(--rad-lg);
  padding:24px;
  box-shadow:var(--shadow);
  border:1px solid var(--line);
  transition:transform .5s cubic-bezier(.2,.8,.2,1);
}
.hero-card:hover{transform:translateY(-6px) scale(1.02)!important}
.card-a{
  top:0;left:0;width:60%;
  animation:floatA 8s ease-in-out infinite;
}
.card-b{
  top:30px;right:0;width:55%;
  animation:floatB 10s ease-in-out infinite;
}
.card-c{
  bottom:30px;left:10%;width:50%;
  animation:floatC 9s ease-in-out infinite;
}
.card-d{
  bottom:0;right:5%;width:55%;
  animation:floatD 11s ease-in-out infinite;
}
@keyframes floatA{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@keyframes floatB{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-16px) rotate(2deg)}}
@keyframes floatC{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-10px) rotate(-2deg)}}
@keyframes floatD{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}

.card-label{
  font-size:10px;letter-spacing:2px;color:var(--mut);
  margin-bottom:8px;font-weight:600;
}
.card-title{font-size:18px;font-weight:800;margin-bottom:16px}
.card-line{
  height:3px;width:40px;border-radius:2px;
  background:var(--grad);margin-bottom:16px;
}
.card-bars{display:flex;align-items:flex-end;gap:6px;height:60px}
.card-bars i{
  flex:1;height:var(--h);border-radius:3px;
  background:linear-gradient(180deg,var(--acc),var(--acc2));
  animation:barRise 2s ease-out;
}
@keyframes barRise{from{height:0}}

.card-wave{height:40px;margin-bottom:12px;color:var(--acc3)}
.card-wave svg{width:100%;height:100%}
.card-meta{
  display:flex;align-items:center;gap:6px;
  font-size:11px;color:var(--mut);letter-spacing:1px;
}
.dot-live{
  width:8px;height:8px;border-radius:50%;background:#ff3b3b;
  box-shadow:0 0 0 0 rgba(255,59,59,.6);
  animation:pulseL 1.4s ease-in-out infinite;
}
@keyframes pulseL{0%,100%{box-shadow:0 0 0 0 rgba(255,59,59,.6)}50%{box-shadow:0 0 0 6px rgba(255,59,59,0)}}

.card-circ{position:relative;width:80px;height:80px;margin:0 auto;color:#f59e0b}
.card-circ svg{width:100%;height:100%;animation:rot 12s linear infinite}
@keyframes rot{to{transform:rotate(360deg)}}
.circ-text{
  position:absolute;inset:0;display:grid;place-items:center;
  font-weight:900;font-size:14px;color:var(--fg);
}

.card-dots{
  display:grid;grid-template-columns:repeat(8,1fr);gap:4px;
}
.card-dots i{
  aspect-ratio:1;background:var(--acc);
  border-radius:2px;opacity:.2;
  animation:dotPulse 2s ease-in-out infinite;
}
.card-dots i:nth-child(3n){background:var(--acc2);animation-delay:.2s}
.card-dots i:nth-child(5n){background:var(--acc3);animation-delay:.4s}
.card-dots i:nth-child(7n){opacity:.8}
@keyframes dotPulse{
  0%,100%{opacity:.2;transform:scale(1)}
  50%{opacity:1;transform:scale(1.2)}
}

/* 品牌滚动条 */
.brand-strip{
  margin-top:80px;padding:24px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--bg2);
  overflow:hidden;
}
.strip-track{
  display:flex;gap:40px;white-space:nowrap;
  animation:slide 30s linear infinite;
}
.strip-track span{
  font-size:14px;font-weight:700;letter-spacing:2px;color:var(--mut);
  flex-shrink:0;
}
@keyframes slide{
  from{transform:translateX(0)}
  to{transform:translateX(-50%)}
}

/* ===== 通用 Section ===== */
.section{padding:120px 0;position:relative}
.sec-tag{
  display:inline-block;font-size:12px;letter-spacing:3px;
  color:var(--acc);font-weight:800;margin-bottom:14px;
  position:relative;padding-left:32px;
}
.sec-tag::before{
  content:"";position:absolute;left:0;top:50%;
  width:24px;height:2px;background:var(--grad);
  transform:translateY(-50%);
}
.sec-title{
  font-size:clamp(32px,4.2vw,52px);font-weight:900;letter-spacing:-1px;
  margin-bottom:20px;line-height:1.15;color:var(--fg);
}
.sec-title em{
  font-style:normal;background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.sec-desc{color:var(--mut);font-size:15px;line-height:1.7;max-width:560px}
.sec-head.center{text-align:center;max-width:720px;margin:0 auto 72px}
.sec-head.center .sec-tag{padding-left:0;padding:0 32px;display:inline-block}
.sec-head.center .sec-tag::before{left:0}
.sec-head.center .sec-tag::after{
  content:"";position:absolute;right:0;top:50%;width:24px;height:2px;
  background:var(--grad);transform:translateY(-50%);
}
.sec-head.center .sec-desc{margin:0 auto}

/* ===== About ===== */
.about{background:var(--bg)}
.about-wrap{
  display:grid;grid-template-columns:1.1fr .9fr;gap:80px;align-items:center;
}
.about-feats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
  margin-top:40px;
}
.feat{padding:24px 20px;background:var(--bg2);border-radius:var(--rad);border:1px solid var(--line)}
.feat-ico{
  font-size:24px;margin-bottom:10px;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.feat h4{font-size:15px;margin-bottom:6px;font-weight:800}
.feat p{font-size:13px;color:var(--mut);line-height:1.6}

.about-visual{
  position:relative;
}
.visual-frame{
  background:#0e1118;
  border-radius:var(--rad-lg);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  transform:perspective(1000px) rotateY(-4deg) rotateX(2deg);
  transition:transform .5s;
}
.about-visual:hover .visual-frame{transform:perspective(1000px) rotateY(-2deg) rotateX(1deg)}
.frame-top{
  display:flex;align-items:center;gap:8px;
  padding:14px 18px;border-bottom:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.02);
}
.frame-top span{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.15)}
.frame-top span:nth-child(1){background:#ff5f57}
.frame-top span:nth-child(2){background:#febc2e}
.frame-top span:nth-child(3){background:#28c840}
.frame-top b{
  margin-left:12px;font-size:11px;color:rgba(255,255,255,.5);
  letter-spacing:2px;font-weight:600;
}
.frame-body{padding:28px 24px;color:#fff}
.row{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 0;border-bottom:1px dashed rgba(255,255,255,.08);
}
.row:last-of-type{border-bottom:0}
.row-key{font-size:10px;color:rgba(255,255,255,.5);letter-spacing:2px;font-weight:600}
.row-val{font-size:13px;font-weight:600}
.visual-bar{
  height:4px;background:rgba(255,255,255,.08);
  border-radius:2px;overflow:hidden;margin:24px 0 14px;
}
.bar-fill{
  height:100%;width:0;background:var(--grad);border-radius:2px;
  animation:fillBar 2s ease-out forwards;
}
@keyframes fillBar{to{width:var(--w)}}
.visual-foot{
  display:flex;justify-content:space-between;
  font-size:10px;color:rgba(255,255,255,.4);letter-spacing:2px;
}
.visual-foot .ok{color:#28c840}
.visual-tag{
  position:absolute;bottom:-20px;right:30px;
  background:#fff;border:1px solid var(--line);
  padding:8px 16px;border-radius:99px;
  font-size:11px;font-weight:700;letter-spacing:2px;
  box-shadow:var(--shadow);
}

/* ===== Service ===== */
.service{background:var(--bg2)}
.srv-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.srv-card{
  position:relative;padding:32px 28px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--rad-lg);
  transition:transform .4s,box-shadow .4s,border-color .4s;
  display:flex;flex-direction:column;
}
.srv-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--grad);border-radius:var(--rad-lg) var(--rad-lg) 0 0;
  transform:scaleX(0);transform-origin:left;transition:transform .4s;
}
.srv-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:transparent}
.srv-card:hover::before{transform:scaleX(1)}
.srv-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
.srv-num{
  font-size:13px;font-weight:800;letter-spacing:2px;
  color:var(--mut);
}
.srv-icon{
  width:48px;height:48px;border-radius:12px;
  background:#fff;
  border:1px solid var(--line);
  color:var(--c);
  display:grid;place-items:center;
}
.srv-icon svg{width:24px;height:24px}
.srv-card h3{font-size:20px;margin-bottom:10px;font-weight:800}
.srv-card>p{color:var(--mut);font-size:13px;line-height:1.7;margin-bottom:18px;flex:1}
.srv-card ul{
  list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin-bottom:20px;
}
.srv-card li{
  font-size:11px;padding:5px 10px;border-radius:6px;
  background:var(--bg2);color:#3a3f50;font-weight:600;
}
.srv-more{
  font-size:13px;font-weight:700;color:var(--acc);
  padding-top:16px;border-top:1px solid var(--line);
  display:inline-flex;align-items:center;gap:4px;
  transition:gap .25s;
}
.srv-more:hover{gap:10px}

/* ===== Works ===== */
.works{background:var(--bg)}
.works-head{
  display:flex;justify-content:space-between;align-items:flex-end;
  margin-bottom:48px;gap:40px;flex-wrap:wrap;
}
.works-head .sec-title{margin-bottom:0}
.works-head .sec-desc{max-width:380px;text-align:right}
.works-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.work-card{
  position:relative;height:340px;border-radius:var(--rad-lg);
  overflow:hidden;cursor:pointer;
  transition:transform .5s,box-shadow .5s;
  display:flex;flex-direction:column;justify-content:flex-end;
}
.work-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.work-bg{position:absolute;inset:0;overflow:hidden;z-index:0}
.wc-a .work-bg{background:linear-gradient(135deg,#1e3a8a,#7c3aed)}
.wc-b .work-bg{background:linear-gradient(135deg,#9d174d,#ea580c)}
.wc-c .work-bg{background:linear-gradient(135deg,#0d9488,#0e7490)}
.wc-d .work-bg{background:linear-gradient(135deg,#a16207,#b91c1c)}
.work-content{
  position:relative;z-index:1;padding:24px;color:#fff;
  background:linear-gradient(180deg,transparent,rgba(0,0,0,.7));
}
.work-tag{
  display:inline-block;padding:4px 10px;
  background:rgba(255,255,255,.18);backdrop-filter:blur(8px);
  border-radius:99px;font-size:10px;letter-spacing:2px;
  margin-bottom:12px;font-weight:700;
}
.work-card h3{font-size:18px;margin-bottom:6px;font-weight:800}
.work-card p{font-size:12px;opacity:.85;line-height:1.5;margin-bottom:14px}
.work-foot{
  display:flex;justify-content:space-between;align-items:center;
  font-size:11px;letter-spacing:1px;opacity:.7;
  padding-top:12px;border-top:1px solid rgba(255,255,255,.18);
}
.work-foot em{font-style:normal;font-size:16px;transition:transform .3s}
.work-card:hover .work-foot em{transform:translateX(4px)}

/* 案例背景动效 */
.bg-shape{position:absolute;border-radius:50%;filter:blur(40px);opacity:.5}
.bg-shape.s1{width:200px;height:200px;background:#3b6cff;top:-50px;right:-50px;animation:float 8s ease-in-out infinite}
.bg-shape.s2{width:150px;height:150px;background:#7c3aed;bottom:-30px;left:20%;animation:float 10s ease-in-out infinite reverse}
.bg-shape.s3{width:100px;height:100px;background:#ff4a6b;top:50%;left:60%;animation:float 12s ease-in-out infinite}

.bg-bars{
  position:absolute;inset:30px;display:flex;align-items:flex-end;gap:8px;opacity:.25;
}
.bg-bars i{
  flex:1;height:var(--h);background:#fff;border-radius:4px;
  animation:barRise 3s ease-out infinite alternate;
}
.bg-bars i:nth-child(2){animation-delay:.2s}
.bg-bars i:nth-child(3){animation-delay:.4s}
.bg-bars i:nth-child(4){animation-delay:.6s}
.bg-bars i:nth-child(5){animation-delay:.8s}
.bg-bars i:nth-child(6){animation-delay:1s}

.bg-grid-dots{
  position:absolute;inset:0;
  background-image:radial-gradient(circle,rgba(255,255,255,.4) 1px,transparent 1px);
  background-size:24px 24px;opacity:.3;
  animation:dotMove 20s linear infinite;
}
@keyframes dotMove{
  from{background-position:0 0}
  to{background-position:240px 240px}
}

.bg-rings{position:absolute;inset:0;display:grid;place-items:center}
.bg-rings i{
  position:absolute;border:2px solid rgba(255,255,255,.25);
  border-radius:50%;animation:ringExpand 4s ease-out infinite;
}
.bg-rings i:nth-child(1){width:60px;height:60px;animation-delay:0s}
.bg-rings i:nth-child(2){width:120px;height:120px;animation-delay:1.3s}
.bg-rings i:nth-child(3){width:180px;height:180px;animation-delay:2.6s}
@keyframes ringExpand{
  0%{opacity:1;transform:scale(.5)}
  100%{opacity:0;transform:scale(1.5)}
}

/* ===== Process ===== */
.process{background:var(--bg2)}
.proc-grid{
  display:flex;align-items:stretch;gap:16px;flex-wrap:wrap;
}
.proc-item{
  flex:1;min-width:200px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--rad-lg);
  padding:32px 24px;
  transition:transform .4s,box-shadow .4s;
  position:relative;overflow:hidden;
}
.proc-item::after{
  content:"";position:absolute;bottom:0;left:0;height:3px;width:0;
  background:var(--grad);transition:width .4s;
}
.proc-item:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.proc-item:hover::after{width:100%}
.proc-num{
  font-size:11px;font-weight:800;letter-spacing:2px;
  color:var(--acc);margin-bottom:16px;
}
.proc-item h4{font-size:18px;margin-bottom:8px;font-weight:800}
.proc-item p{font-size:13px;color:var(--mut);line-height:1.6}
.proc-arrow{
  display:grid;place-items:center;
  font-size:24px;color:var(--mut);font-weight:300;
  flex-shrink:0;
}

/* ===== Contact ===== */
.contact{background:var(--bg)}
.contact-wrap{
  display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start;
}
.info-cards{display:grid;gap:14px;margin-top:32px}
.info-card{
  display:flex;align-items:center;gap:16px;
  padding:18px 22px;background:#fff;
  border:1px solid var(--line);border-radius:var(--rad);
  transition:transform .3s,box-shadow .3s,border-color .3s;
  cursor:pointer;
}
.info-card:hover{
  transform:translateX(6px);
  box-shadow:var(--shadow);
  border-color:transparent;
  background:linear-gradient(90deg,#fff,#f9faff);
}
.info-ico{
  width:44px;height:44px;border-radius:10px;
  background:var(--bg2);
  display:grid;place-items:center;
  font-size:18px;flex-shrink:0;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.info-card b{
  display:block;font-size:10px;color:var(--mut);
  letter-spacing:2px;margin-bottom:4px;font-weight:600;
}
.info-card span{font-size:15px;font-weight:700;color:var(--fg)}
.info-card em{margin-left:auto;font-size:18px;color:var(--mut);font-style:normal}

.contact-form{
  background:var(--bg2);
  border:1px solid var(--line);
  border-radius:var(--rad-lg);
  padding:40px;
}
.form-head{margin-bottom:24px}
.form-head h3{font-size:24px;font-weight:800;margin-bottom:6px}
.form-head p{font-size:13px;color:var(--mut)}
.form{display:grid;gap:16px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form label{
  display:flex;flex-direction:column;gap:6px;
  font-size:12px;font-weight:600;color:var(--mut);letter-spacing:1px;
}
.form input,.form select,.form textarea{
  font-family:inherit;font-size:14px;
  padding:12px 14px;border:1px solid var(--line);border-radius:10px;
  background:#fff;color:var(--fg);transition:border-color .25s,box-shadow .25s;
  outline:0;font-weight:500;letter-spacing:0;
}
.form input:focus,.form select:focus,.form textarea:focus{
  border-color:var(--acc);
  box-shadow:0 0 0 3px rgba(59,108,255,.12);
}
.form textarea{resize:vertical;min-height:90px}
.form-btn{width:100%;margin-top:8px;justify-content:center}

/* ===== 上流PDF产品展示 ===== */
.app-showcase{
  background:
    radial-gradient(ellipse at 0% 50%,rgba(59,108,255,.08),transparent 48%),
    var(--bg2);
}
.app-showcase-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;
}
.app-showcase-copy .sec-desc{max-width:560px}
.app-pills{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 4px}
.app-pills span{
  padding:7px 12px;border-radius:99px;background:#fff;border:1px solid var(--line);
  color:var(--mut);font-size:12px;font-weight:700;
}
.app-actions{margin-top:28px}
.app-showcase-card{
  position:relative;overflow:hidden;padding:32px;border-radius:var(--rad-lg);
  color:#fff;background:linear-gradient(145deg,#111827 0%,#1d2c5a 55%,#3b2b79 100%);
  box-shadow:0 30px 70px -24px rgba(42,55,120,.55);
}
.app-showcase-card::before{
  content:"";position:absolute;width:260px;height:260px;right:-80px;top:-100px;border-radius:50%;
  background:rgba(124,58,237,.32);filter:blur(5px);
}
.app-card-top{position:relative;z-index:1;display:flex;align-items:center;gap:14px}
.app-icon-mark{
  width:52px;height:52px;border-radius:15px;display:grid;place-items:center;
  background:linear-gradient(135deg,#6d8cff,#a35cff 55%,#ff6680);
  font-size:30px;font-weight:900;line-height:1;box-shadow:0 10px 26px -8px rgba(163,92,255,.8)
}
.app-card-top b{display:block;font-size:21px;letter-spacing:.5px}
.app-card-top div span{display:block;color:rgba(255,255,255,.62);font-size:12px;margin-top:2px}
.app-status{margin-left:auto;padding:5px 8px;border:1px solid rgba(255,255,255,.2);border-radius:6px;color:#a9f5d1;font-size:10px;letter-spacing:1.5px}
.app-card-line{height:1px;background:rgba(255,255,255,.14);margin:28px 0 22px}
.app-feature-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:18px 22px}
.app-feature-grid div{padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.12)}
.app-feature-grid b{display:block;font-size:14px}
.app-feature-grid span{display:block;margin-top:4px;color:rgba(255,255,255,.58);font-size:12px}
.app-card-note{position:relative;z-index:1;margin-top:24px;color:#b9c9ff;font-size:12px}
.contact-direct{min-height:100%;display:flex;flex-direction:column}
.support-panel{flex:1;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;padding:12px 0 2px}
.support-panel-icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:var(--grad);color:#fff;font-weight:900;font-size:24px;margin-bottom:18px}
.support-panel h4{font-size:20px;margin-bottom:8px}
.support-panel p{font-size:14px;color:var(--mut);margin-bottom:12px}
.support-phone{font-size:14px;font-weight:700;color:var(--acc);margin-top:14px}

/* ===== Footer ===== */
.foot{
  background:#0e1118;color:#fff;
  padding:80px 0 0;
}
.foot-top{
  display:grid;grid-template-columns:1.2fr 2fr;gap:60px;
  padding-bottom:50px;border-bottom:1px solid rgba(255,255,255,.1);
}
.foot-brand p{color:rgba(255,255,255,.55);font-size:13px;margin-top:16px;max-width:300px}
.foot-brand .logo-text b,
.foot-brand .logo-text span{color:#fff}
.foot-brand .logo-text span{color:rgba(255,255,255,.5)}
.foot-cols{display:grid;grid-template-columns:repeat(4,1fr);gap:40px}
.foot-cols h5{
  font-size:11px;color:rgba(255,255,255,.5);
  letter-spacing:2px;margin-bottom:18px;font-weight:700;
}
.foot-cols a,.foot-cols span{
  display:block;font-size:14px;color:rgba(255,255,255,.85);
  margin-bottom:10px;transition:color .25s;
}
.foot-cols a:hover{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.foot-bot{
  padding:24px 28px;margin:0 -28px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;
  font-size:12px;color:rgba(255,255,255,.4);
}

/* ===== 入场动画 ===== */
.reveal{opacity:0;transform:translateY(40px);transition:opacity .8s ease,transform .8s ease}
.reveal.in{opacity:1;transform:translateY(0)}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .srv-grid{grid-template-columns:repeat(2,1fr)}
  .works-grid{grid-template-columns:repeat(2,1fr)}
  .work-card{height:300px}
  .foot-top{grid-template-columns:1fr;gap:40px}
  .foot-cols{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  .section{padding:80px 0}
  .nav-menu{
    position:fixed;top:0;right:-100%;width:78%;max-width:340px;height:100vh;
    background:#fff;flex-direction:column;
    padding:100px 32px 32px;gap:24px;
    transition:right .4s;
    box-shadow:-20px 0 60px -10px rgba(15,17,24,.15);
  }
  .nav-menu.open{right:0}
  .nav-menu a{font-size:18px}
  .nav-phone{display:none}
  .nav-burger{display:block}
  .hero{padding:110px 0 0}
  .hero-grid{grid-template-columns:1fr;gap:40px;min-height:auto;padding-bottom:60px}
  .hero-right{height:440px;max-width:480px;margin:0 auto;width:100%}
  .app-showcase-grid{grid-template-columns:1fr;gap:40px}
  .about-wrap{grid-template-columns:1fr;gap:60px}
  .about-feats{grid-template-columns:1fr;gap:14px}
  .contact-wrap{grid-template-columns:1fr;gap:40px}
  .proc-grid{flex-direction:column}
  .proc-arrow{transform:rotate(90deg);padding:8px 0}
  .works-head{flex-direction:column;align-items:flex-start}
  .works-head .sec-desc{text-align:left}
  .foot-cols{grid-template-columns:1fr 1fr;gap:30px}
  .foot-bot{flex-direction:column;text-align:center}
}
@media (max-width:560px){
  .container{padding:0 20px}
  .nav-inner{padding:14px 20px;gap:16px}
  .logo-text{display:none}
  .srv-grid{grid-template-columns:1fr}
  .works-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .contact-form{padding:28px 22px}
  .foot-cols{grid-template-columns:1fr}
  .hero-trust{gap:16px}
  .trust-divider{display:none}
  .hero-right{height:380px}
  .card-a{width:55%}
  .card-b{width:50%;top:20px}
  .card-c{width:48%;left:5%}
  .card-d{width:50%;right:0}
  .app-showcase-card{padding:24px}
  .app-feature-grid{gap:14px}
}

/* ===== 上流品牌视觉层：朱砂红 / 暖白 / 炭黑 ===== */
:root{
  --bg:#fffdfb;
  --bg2:#fff5f0;
  --bg3:#ffe9e0;
  --fg:#1f1715;
  --mut:#79645d;
  --line:#f0d9d0;
  --line2:#e3bdb0;
  --acc:#df3d2f;
  --acc2:#f26b3d;
  --acc3:#f1a33f;
  --grad:linear-gradient(135deg,#d92f2f 0%,#ec5434 52%,#f4a84c 100%);
  --shadow-sm:0 2px 8px rgba(120,47,29,.06);
  --shadow:0 14px 42px -14px rgba(120,47,29,.18);
  --shadow-lg:0 30px 70px -24px rgba(120,47,29,.24);
  --rad:16px;
  --rad-lg:24px;
}

body{background:var(--bg);color:var(--fg)}
.nav{background:rgba(255,253,251,.76)}
.nav.scrolled{background:rgba(255,253,251,.94)}
.logo-mark{
  padding:0;background:none;box-shadow:0 8px 20px -8px rgba(217,47,47,.35);
}
.logo-mark::after{display:none}
.logo-mark img,.page-logo-mark img,.app-icon-mark img{
  width:100%;height:100%;object-fit:cover;border-radius:inherit;
}
.nav-phone{background:var(--fg)}
.nav-phone:hover{box-shadow:0 10px 20px -6px rgba(31,23,21,.36)}
.hero{
  background:
    radial-gradient(ellipse at 84% 0%,rgba(236,84,52,.14),transparent 48%),
    radial-gradient(ellipse at 0% 34%,rgba(244,168,76,.13),transparent 46%),
    var(--bg);
}
.deco-circle.c1{background:rgba(236,84,52,.17)}
.deco-circle.c2{background:rgba(244,168,76,.16)}
.deco-circle.c3{background:rgba(217,47,47,.12)}
.deco-grid{
  background-image:
    linear-gradient(rgba(120,47,29,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,47,29,.045) 1px,transparent 1px);
}
.hero-tag{background:rgba(255,255,255,.78);border-color:var(--line)}
.tag-dot{background:var(--acc)}
.hero-title .grad,.sec-title em{background:var(--grad)}
.hero-title .grad,.sec-title em,.page-title em{
  color:var(--acc);
  -webkit-text-fill-color:transparent;
  -webkit-background-clip:text;
  background-clip:text;
}
.feat-ico,.info-ico{
  color:var(--acc);
  -webkit-text-fill-color:transparent;
  -webkit-background-clip:text;
  background-clip:text;
}
.btn-primary{background:var(--grad);box-shadow:0 12px 28px -10px rgba(217,47,47,.42)}
.btn-primary:hover{box-shadow:0 18px 40px -10px rgba(217,47,47,.5)}
.btn-line:hover{background:var(--fg);border-color:var(--fg)}
.hero-card{background:rgba(255,255,255,.88);border-color:var(--line);box-shadow:var(--shadow)}
.card-line{background:var(--grad)}
.card-bars i{background:linear-gradient(180deg,var(--acc2),var(--acc))}
.card-wave{color:var(--acc)}
.card-circ{color:var(--acc3)}
.card-dots i{background:var(--acc)}
.card-dots i:nth-child(3n){background:var(--acc2)}
.card-dots i:nth-child(5n){background:var(--acc3)}
.brand-strip{background:var(--bg2)}
.sec-tag{color:var(--acc)}
.sec-tag::before,.sec-head.center .sec-tag::after{background:var(--grad)}
.about{background:var(--bg)}
.feat{background:var(--bg2);border-color:var(--line)}
.visual-frame{background:#241716;box-shadow:var(--shadow-lg)}
.visual-bar{background:rgba(255,255,255,.1)}
.bar-fill{background:var(--grad)}
.visual-tag{border-color:var(--line);box-shadow:var(--shadow)}
.service,.process{background:var(--bg2)}
.srv-card,.proc-item{border-color:var(--line)}
.srv-card li{background:var(--bg2)}
.works,.contact{background:var(--bg)}
.wc-a .work-bg{background:linear-gradient(135deg,#9d2426,#e85a39)}
.wc-b .work-bg{background:linear-gradient(135deg,#a92f3f,#ef7b3e)}
.wc-c .work-bg{background:linear-gradient(135deg,#7b3831,#d75635)}
.wc-d .work-bg{background:linear-gradient(135deg,#b15b20,#d52f2f)}
.bg-shape.s1{background:#ef7045}
.bg-shape.s2{background:#d92f2f}
.bg-shape.s3{background:#f4a84c}
.info-card{border-color:var(--line);background:rgba(255,255,255,.86)}
.info-card:hover{background:linear-gradient(90deg,#fff,#fff4ef)}
.contact-form{background:var(--bg2);border-color:var(--line)}
.form input:focus,.form select:focus,.form textarea:focus{box-shadow:0 0 0 3px rgba(223,61,47,.13)}
.app-showcase{
  background:
    radial-gradient(ellipse at 0% 50%,rgba(236,84,52,.11),transparent 48%),
    var(--bg2);
}
.app-pills span{border-color:var(--line)}
.app-showcase-card{
  background:linear-gradient(145deg,#241716 0%,#4b2424 58%,#9b3e2e 100%);
  box-shadow:0 30px 70px -24px rgba(133,42,35,.48);
}
.app-showcase-card::before{background:rgba(244,168,76,.24)}
.app-icon-mark{
  padding:0;background:none;box-shadow:0 10px 26px -8px rgba(236,84,52,.64);
}
.app-status{color:#ffd7b2}
.app-card-note{color:#ffd1b5}
.support-panel-icon{background:var(--grad)}
.support-phone{color:var(--acc)}
.foot{background:#241716}
.page-body{background:var(--bg2)}
.page-nav{background:rgba(255,253,251,.94);border-color:var(--line)}
.page-logo-mark{padding:0;background:none;box-shadow:0 8px 20px -8px rgba(217,47,47,.35)}
.page-eyebrow{color:var(--acc)}
.page-eyebrow::before{background:var(--acc);box-shadow:0 0 0 6px rgba(223,61,47,.1)}
.page-card{border-color:var(--line);box-shadow:var(--shadow-sm)}
.feature-mark{background:linear-gradient(135deg,rgba(223,61,47,.12),rgba(244,168,76,.18));color:var(--acc)}
.page-card a,.policy-index a:hover{color:var(--acc)}
.notice{background:#fff1ea;border-color:#f4d4c6;color:#7e3d31}
.check-item::before{background:#fff0e8;color:#c8422f}
.support-hero-card{background:linear-gradient(145deg,#241716,#662d2a 55%,#a84a32)}
.page-footer{background:#241716;border-color:rgba(255,255,255,.1)}
.page-footer a{color:#ffc2a9}
.nav-miniprogram-btn{border-radius:12px!important}

@media (max-width:860px){
  .nav-menu{background:var(--bg)}
}
@media (max-width:560px){
  .foot-bot{margin:0 -20px;padding-left:20px;padding-right:20px}
}