/* ===== 虾记代账官网样式 ===== */
:root{
  --primary:#FF6B35;
  --primary-dark:#E8541F;
  --primary-soft:#FFF1EA;
  --ink:#16263B;
  --ink-2:#4A5A70;
  --ink-3:#8A97A8;
  --bg:#FBF9F6;
  --card:#FFFFFF;
  --line:#EAE4DC;
  --ok:#2BA471;
  --warn:#D97706;
  --radius:16px;
  --shadow-sm:0 2px 10px rgba(22,38,59,.06);
  --shadow-md:0 12px 32px rgba(22,38,59,.10);
  --shadow-lg:0 24px 60px rgba(22,38,59,.14);
  --grad:linear-gradient(135deg,#FF6B35 0%,#FF8F5A 100%);
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:820px}
img{max-width:100%}
a{text-decoration:none;color:inherit}
ul{list-style:none}
button{font-family:inherit;cursor:pointer}
::selection{background:var(--primary);color:#fff}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;font-size:15px;
  padding:12px 26px;border:2px solid transparent;transition:.25s;white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(255,107,53,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,107,53,.45)}
.btn-outline{border-color:var(--primary);color:var(--primary-dark);background:transparent}
.btn-outline:hover{background:var(--primary-soft)}
.btn-ghost{color:var(--ink-2)}
.btn-ghost:hover{color:var(--primary-dark)}
.btn-sm{padding:9px 20px;font-size:14px}
.btn-lg{padding:15px 36px;font-size:17px}
.btn-block{width:100%}

/* ===== 导航栏 ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(251,249,246,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:.3s;
}
.nav.scrolled{background:rgba(255,255,255,.94);border-bottom-color:var(--line);box-shadow:var(--shadow-sm)}
.nav-inner{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:.5px}
.brand-logo{display:inline-flex;filter:drop-shadow(0 4px 8px rgba(255,107,53,.35))}
.nav-menu{display:flex;align-items:center;gap:26px;margin:0 auto;font-size:15px;font-weight:500;color:var(--ink-2)}
.nav-menu a{position:relative;padding:6px 0;transition:.2s}
.nav-menu a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--grad);border-radius:2px;transition:.25s}
.nav-menu a:hover{color:var(--ink)}
.nav-menu a:hover::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;padding:8px}
.nav-toggle span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== Hero ===== */
.hero{position:relative;padding:150px 0 90px;overflow:hidden;background:
  radial-gradient(1000px 500px at 85% -10%,#FFE9DC 0%,transparent 60%),
  radial-gradient(800px 480px at -10% 30%,#E8F1FF 0%,transparent 55%),
  var(--bg);}
.hero-bg{position:absolute;inset:0;pointer-events:none}
.blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5}
.blob-1{width:420px;height:420px;background:#FFD9C4;top:-120px;right:-80px}
.blob-2{width:380px;height:380px;background:#CDE3FF;bottom:-140px;left:-100px;opacity:.45}
.grid-lines{position:absolute;inset:0;
  background-image:linear-gradient(rgba(22,38,59,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(22,38,59,.035) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(700px 420px at 60% 20%,#000 0%,transparent 70%);
  -webkit-mask-image:radial-gradient(700px 420px at 60% 20%,#000 0%,transparent 70%);}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary-soft);color:var(--primary-dark);
  border:1px solid #FFD8C2;border-radius:999px;padding:7px 16px;
  font-size:14px;font-weight:600;margin-bottom:22px;
}
.hero h1{font-size:clamp(36px,5vw,58px);line-height:1.16;font-weight:800;letter-spacing:1px;margin-bottom:20px}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:520px;margin-bottom:30px}
.hero-cta{display:flex;gap:14px;margin-bottom:26px;flex-wrap:wrap}
.hero-points{display:flex;gap:22px;flex-wrap:wrap;color:var(--ink-3);font-size:13.5px}
.hero-points li{display:flex;align-items:center;gap:6px}
.hero-points li::before{content:"✓";color:var(--ok);font-weight:800}

/* Hero 界面 mockup */
.hero-visual{position:relative}
.browser-window{
  background:#fff;border-radius:18px;box-shadow:var(--shadow-lg);
  border:1px solid var(--line);overflow:hidden;
  transform:perspective(1200px) rotateY(-4deg) rotateX(2deg);
  transition:transform .5s;
}
.browser-window:hover{transform:perspective(1200px) rotateY(-1deg) rotateX(1deg)}
.browser-bar{display:flex;align-items:center;gap:8px;padding:11px 16px;background:#F4F1ED;border-bottom:1px solid var(--line)}
.dot{width:11px;height:11px;border-radius:50%}
.dot-r{background:#FF5F57}.dot-y{background:#FEBC2E}.dot-g{background:#28C840}
.browser-url{margin-left:10px;background:#fff;border:1px solid var(--line);border-radius:6px;padding:3px 14px;font-size:12px;color:var(--ink-3);flex:1;max-width:260px}
.app-body{display:flex;min-height:420px;font-size:12px}
.app-side{width:148px;background:#17263C;color:#AEB9CC;padding:14px 0;flex-shrink:0}
.side-logo{display:flex;align-items:center;gap:7px;padding:0 16px 14px;color:#fff;font-weight:700;font-size:13px;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:10px}
.side-menu li{display:flex;align-items:center;gap:9px;padding:8px 16px;cursor:pointer;border-left:3px solid transparent;transition:.2s}
.side-menu li.active{background:rgba(255,107,53,.16);color:#fff;border-left-color:var(--primary)}
.mi{font-size:13px;width:16px;text-align:center}
.app-main{flex:1;background:#FAF8F5;padding:16px 18px;min-width:0}
.app-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;gap:10px;flex-wrap:wrap}
.app-greet{font-size:14.5px;font-weight:700;color:var(--ink)}
.app-date{font-size:11.5px;color:var(--ink-3);margin-top:2px}
.app-tag{background:var(--primary-soft);color:var(--primary-dark);font-weight:600;padding:5px 12px;border-radius:999px;font-size:11.5px}
.kpi-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:12px}
.kpi{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px;box-shadow:var(--shadow-sm)}
.kpi-label{font-size:10.5px;color:var(--ink-3);margin-bottom:3px}
.kpi-val{font-size:16px;font-weight:800;color:var(--ink)}
.kpi-up{font-size:10px;color:var(--ok);font-weight:700}
.kpi-up.kpi-warn{color:var(--warn)}
.kpi-up.kpi-down{color:var(--primary)}
.chart-row{display:grid;grid-template-columns:1.25fr 1fr;gap:10px}
.chart-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px;box-shadow:var(--shadow-sm)}
.chart-title{font-size:12px;font-weight:700;color:var(--ink);margin-bottom:10px}
.chart-sub{font-weight:400;color:var(--ink-3);font-size:10.5px;margin-left:6px}
.bars{display:flex;align-items:flex-end;gap:8px;height:96px;padding:0 2px}
.bar{flex:1;background:linear-gradient(180deg,#FFD0B8,#FFE7DA);border-radius:6px 6px 3px 3px;position:relative;transition:.3s}
.bar.hot{background:linear-gradient(180deg,var(--primary),#FFB28A)}
.bar i{position:absolute;top:-16px;left:50%;transform:translateX(-50%);font-size:9px;font-style:normal;color:var(--ink-2);opacity:0;transition:.2s}
.bar:hover i{opacity:1}
.bar-labels{display:flex;gap:8px;margin-top:8px}
.bar-labels span{flex:1;text-align:center;font-size:9.5px;color:var(--ink-3)}
.bill-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px;box-shadow:var(--shadow-sm)}
.bills li{display:flex;align-items:center;gap:8px;padding:6px 0;border-bottom:1px dashed var(--line);font-size:11px}
.bills li:last-child{border-bottom:none}
.bill-ico{width:20px;height:20px;border-radius:6px;display:inline-flex;align-items:center;justify-content:center;font-size:10px;font-weight:800;flex-shrink:0}
.ico-in{background:#E5F6EE;color:var(--ok)}
.ico-out{background:#FBE7E0;color:var(--primary-dark)}
.ico-tax{background:#FEF3E2;color:var(--warn)}
.bill-name{flex:1;color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bill-money{font-weight:700;color:var(--ink);white-space:nowrap}
.bill-money.in{color:var(--ok)}
.bill-money.warn{color:var(--warn);font-size:10px}

.float-card{
  position:absolute;background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-md);padding:11px 16px;font-size:12.5px;font-weight:600;color:var(--ink);
  animation:float 5s ease-in-out infinite;z-index:5;
}
.float-card b{color:var(--primary-dark)}
.fc-1{top:-18px;left:-26px}
.fc-2{bottom:-16px;right:-18px;animation-delay:2.2s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}

/* ===== 数据条 ===== */
.stats{border-top:1px solid var(--line);background:#fff}
.stats-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:46px 24px;text-align:center}
.stat-num{
  font-size:clamp(30px,4vw,44px);font-weight:800;letter-spacing:1px;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-lab{color:var(--ink-3);font-size:14.5px;margin-top:4px}

/* ===== 通用区块 ===== */
.section{padding:96px 0}
.section-head{text-align:center;max-width:640px;margin:0 auto 56px}
.section-tag{
  display:inline-block;background:var(--primary-soft);color:var(--primary-dark);
  border-radius:999px;padding:6px 16px;font-size:13px;font-weight:700;margin-bottom:16px;
}
.section-head h2{font-size:clamp(28px,3.6vw,40px);font-weight:800;letter-spacing:.5px;margin-bottom:14px}
.section-head p{color:var(--ink-2);font-size:16px}
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}

/* ===== 功能卡片 ===== */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;transition:.3s;position:relative;overflow:hidden;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:#FFD9C4}
.feat-ico{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;color:#fff;
}
.feat-ico svg{width:26px;height:26px}
.i1{background:linear-gradient(135deg,#FF6B35,#FF9E6B)}
.i2{background:linear-gradient(135deg,#2E7CF6,#63A4FF)}
.i3{background:linear-gradient(135deg,#2BA471,#5ED6A9)}
.i4{background:linear-gradient(135deg,#8B5CF6,#B79BFF)}
.i5{background:linear-gradient(135deg,#EAB308,#FACC15)}
.i6{background:linear-gradient(135deg,#0EA5E9,#5ED0FF)}
.feat h3{font-size:18px;font-weight:700;margin-bottom:10px}
.feat p{color:var(--ink-2);font-size:14.5px}

/* ===== 服务 ===== */
.services{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.services-flow{display:flex;align-items:stretch;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:48px}
.svc-card{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;flex:1;min-width:200px;max-width:250px;position:relative;transition:.3s;
}
.svc-card:hover{border-color:#FFD9C4;box-shadow:var(--shadow-md);transform:translateY(-4px)}
.svc-num{font-size:30px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:10px}
.svc-card h3{font-size:16.5px;font-weight:700;margin-bottom:8px}
.svc-card p{font-size:13.5px;color:var(--ink-2)}
.svc-arrow{align-self:center;color:#FFB89A;font-size:24px;font-weight:700;flex-shrink:0}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.svc-item{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:20px 22px;transition:.25s}
.svc-item:hover{border-color:#FFD9C4;background:#FFF8F3}
.svc-dot{display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--grad);margin-bottom:10px}
.svc-item h4{font-size:15.5px;font-weight:700;margin-bottom:6px}
.svc-item p{font-size:13px;color:var(--ink-2)}

/* ===== 套餐 ===== */
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{
  background:var(--card);border:1px solid var(--line);border-radius:20px;padding:34px 30px;
  display:flex;flex-direction:column;transition:.3s;position:relative;
}
.price-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.price-card.hot{
  border:2px solid var(--primary);box-shadow:0 20px 50px rgba(255,107,53,.18);
  transform:scale(1.03);
}
.price-card.hot:hover{transform:scale(1.03) translateY(-6px)}
.price-flag{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:var(--grad);color:#fff;font-size:12px;font-weight:700;
  padding:5px 16px;border-radius:999px;box-shadow:0 6px 14px rgba(255,107,53,.4);
}
.price-name{font-size:16px;font-weight:700;color:var(--ink-2);margin-bottom:10px}
.price-amount{font-size:46px;font-weight:800;letter-spacing:-1px;margin-bottom:4px}
.price-amount .cur{font-size:20px;font-weight:700;vertical-align:14px;color:var(--primary)}
.price-amount small{font-size:15px;font-weight:500;color:var(--ink-3);margin-left:4px}
.price-desc{color:var(--ink-3);font-size:13.5px;margin-bottom:20px}
.price-list{margin-bottom:26px;flex:1}
.price-list li{position:relative;padding:9px 0 9px 26px;color:var(--ink-2);font-size:14.5px;border-bottom:1px dashed var(--line)}
.price-list li:last-child{border-bottom:none}
.price-list li::before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:800}
.price-card.hot .price-list li::before{color:var(--primary)}
.pricing-note{text-align:center;color:var(--ink-3);font-size:13px;margin-top:26px}

/* ===== 案例 ===== */
.cases{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.case-card{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;display:flex;gap:16px;transition:.3s;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#FFD9C4}
.case-ava{
  width:46px;height:46px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:18px;
}
.ava-1{background:linear-gradient(135deg,#FF6B35,#FF9E6B)}
.ava-2{background:linear-gradient(135deg,#2E7CF6,#63A4FF)}
.ava-3{background:linear-gradient(135deg,#2BA471,#5ED6A9)}
.case-quote{font-size:14px;color:var(--ink-2);margin-bottom:14px;line-height:1.75}
.case-meta b{display:block;font-size:14.5px}
.case-meta span{font-size:12.5px;color:var(--ink-3)}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.3s}
.faq-item.open{border-color:#FFD9C4;box-shadow:var(--shadow-sm)}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;
  background:none;border:none;padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);text-align:left;
}
.faq-plus{font-size:22px;color:var(--primary);font-weight:400;transition:.3s;flex-shrink:0}
.faq-item.open .faq-plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 24px 20px;color:var(--ink-2);font-size:14.5px}

/* ===== CTA ===== */
.cta{
  background:linear-gradient(135deg,#FF6B35 0%,#FF8F5A 60%,#FFA97F 100%);
  padding:80px 0;text-align:center;color:#fff;position:relative;overflow:hidden;
}
.cta::before,.cta::after{
  content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.14);
}
.cta::before{width:300px;height:300px;top:-130px;right:-80px}
.cta::after{width:220px;height:220px;bottom:-110px;left:-60px}
.cta h2{font-size:clamp(28px,3.6vw,40px);font-weight:800;margin-bottom:14px;position:relative}
.cta p{font-size:17px;opacity:.94;margin-bottom:30px;position:relative}
.cta .btn-primary{background:#fff;color:var(--primary-dark);box-shadow:0 10px 24px rgba(0,0,0,.18)}
.cta .btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(0,0,0,.25)}

/* ===== 联系方式 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:44px;align-items:start}
.contact-info{display:flex;flex-direction:column;gap:6px}
.c-item{display:flex;gap:16px;align-items:flex-start;padding:16px 0;border-bottom:1px dashed var(--line)}
.c-ico{
  width:46px;height:46px;border-radius:13px;background:var(--primary-soft);
  display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0;
}
.c-item b{font-size:15.5px;display:block;margin-bottom:2px}
.c-item p{font-size:14px;color:var(--ink-2)}
.contact-form{
  background:var(--card);border:1px solid var(--line);border-radius:20px;
  padding:34px;box-shadow:var(--shadow-sm);
}
.contact-form h3{font-size:21px;font-weight:800;margin-bottom:22px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.contact-form input,.contact-form select,.contact-form textarea{
  width:100%;border:1.5px solid var(--line);border-radius:11px;background:var(--bg);
  padding:12px 15px;font-size:14.5px;font-family:inherit;color:var(--ink);transition:.2s;margin-bottom:14px;
}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{
  outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(255,107,53,.12);
}
.form-tip{font-size:12px;color:var(--ink-3);text-align:center;margin-top:12px}

/* ===== 页脚 ===== */
.footer{background:#13233B;color:#93A3BC;padding:60px 0 26px}
.footer-inner{display:grid;grid-template-columns:1.4fr 2fr;gap:44px;margin-bottom:40px}
.footer .brand-name{color:#fff}
.footer-brand p{font-size:14px;margin-top:14px;max-width:300px;line-height:1.8}
.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.f-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.f-col a{display:block;font-size:13.5px;padding:5px 0;transition:.2s}
.f-col a:hover{color:#fff;padding-left:4px}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  border-top:1px solid rgba(255,255,255,.1);padding-top:22px;font-size:12.5px;
}
.footer-bottom a{color:#A9B7CC;text-decoration:none;transition:.2s}
.footer-bottom a:hover{color:#fff;text-decoration:underline}

/* ===== Toast ===== */
.toast{
  position:fixed;left:50%;bottom:34px;transform:translate(-50%,80px);
  background:#13233B;color:#fff;padding:14px 26px;border-radius:12px;
  font-size:14.5px;box-shadow:var(--shadow-lg);opacity:0;transition:.4s;z-index:200;
}
.toast.show{transform:translate(-50%,0);opacity:1}

/* ===== 显现动画 ===== */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ===== 表单提交成功提示 ===== */
.form-success{
  display:flex;align-items:flex-start;gap:12px;padding:16px 18px;margin:6px 0 10px;
  background:#E9F8F1;border:1.5px solid #6FCF9A;border-radius:12px;
  color:#1A6E4B;animation:pop .35s cubic-bezier(.2,.9,.3,1.2) both;
}
.form-success[hidden]{display:none}
.form-success-ico{font-size:24px;line-height:1;flex-shrink:0;margin-top:1px}
.form-success b{display:block;font-size:15px;font-weight:700;margin-bottom:2px}
.form-success p{font-size:13.5px;color:#2A7A55;line-height:1.5;margin:0}
@keyframes pop{from{opacity:0;transform:scale(.92)}to{opacity:1;transform:scale(1)}}

/* 提交失败提示 */
.form-error{
  display:flex;align-items:flex-start;gap:12px;padding:16px 18px;margin:6px 0 10px;
  background:#FDF0EF;border:1.5px solid #F2A19A;border-radius:12px;
  color:#B3402F;animation:pop .35s cubic-bezier(.2,.9,.3,1.2) both;
}
.form-error[hidden]{display:none}
.form-error-ico{font-size:24px;line-height:1;flex-shrink:0;margin-top:1px}
.form-error b{display:block;font-size:15px;font-weight:700;margin-bottom:2px}
.form-error p{font-size:13.5px;color:#B3402F;line-height:1.5;margin:0}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:64px}
  .hero-copy{text-align:center}
  .hero-sub{margin-left:auto;margin-right:auto}
  .hero-cta,.hero-points{justify-content:center}
  .hero-visual{max-width:640px;margin:0 auto}
  .grid-3,.services-grid,.cases-grid{grid-template-columns:repeat(2,1fr)}
  .pricing-grid{grid-template-columns:1fr;max-width:480px;margin:0 auto}
  .price-card.hot{transform:none}
  .price-card.hot:hover{transform:translateY(-6px)}
}
@media (max-width:768px){
  .nav-toggle{display:flex}
  .nav-menu{
    position:fixed;top:68px;left:0;right:0;flex-direction:column;align-items:flex-start;gap:0;
    background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-md);
    padding:10px 24px;display:none;
  }
  .nav-menu.open{display:flex}
  .nav-menu a{padding:13px 0;width:100%;border-bottom:1px solid var(--line)}
  .nav-menu a::after{display:none}
  .nav-actions .btn-ghost{display:none}
  .hero{padding:120px 0 70px}
  .chart-row,.kpi-row{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .footer-links{grid-template-columns:repeat(3,1fr)}
  .stats-inner{grid-template-columns:repeat(2,1fr);gap:32px}
  .fc-1{left:0}.fc-2{right:0}
}
@media (max-width:560px){
  .grid-3,.services-grid,.cases-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .section{padding:70px 0}
  .app-side{display:none}
  .app-body{min-height:auto}
  .services-flow{flex-direction:column;align-items:center}
  .svc-arrow{transform:rotate(90deg)}
  .svc-card{max-width:100%;width:100%}
}