/* ===== 零壹电脑 企业官网样式 ===== */
:root {
  --primary: #0d47a1;
  --primary-dark: #0a3a85;
  --primary-light: #1565c0;
  --accent: #ff9800;
  --accent-dark: #f57c00;
  --dark: #101820;
  --dark-2: #16232e;
  --gray-1: #f5f7fa;
  --gray-2: #e9edf2;
  --gray-3: #94a3b8;
  --text: #1f2937;
  --text-light: #64748b;
  --white: #ffffff;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(13, 71, 161, 0.08);
  --shadow-lg: 0 20px 50px rgba(13, 71, 161, 0.15);
  --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(--text);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== 顶部信息条 ===== */
.topbar {
  background: var(--dark);
  color: #cbd5e1;
  font-size: 13px;
  padding: 8px 0;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 6px; }
.topbar a:hover { color: var(--accent); }
.topbar .phone-highlight { color: var(--accent); font-weight: 600; }

/* ===== 导航 ===== */
.navbar {
  background: var(--white);
  position: sticky;
  top: 0;
  z-index: 999;
  box-shadow: 0 2px 12px rgba(16, 24, 32, 0.06);
}
.navbar .container { display: flex; justify-content: space-between; align-items: center; height: 74px; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo-icon {
  width: 46px; height: 46px;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 22px; font-weight: 800;
  box-shadow: 0 4px 12px rgba(13, 71, 161, 0.35);
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text strong { font-size: 21px; color: var(--primary); letter-spacing: 1px; }
.logo-text span { font-size: 12px; color: var(--text-light); letter-spacing: 2px; }
.nav-links { display: flex; gap: 6px; align-items: center; }
.nav-links a {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 15px;
  color: var(--text);
  font-weight: 500;
}
.nav-links a:hover, .nav-links a.active { color: var(--primary); background: rgba(13, 71, 161, 0.08); }
.nav-cta {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff !important;
  font-weight: 600;
  padding: 10px 20px !important;
  border-radius: 30px !important;
  box-shadow: 0 4px 14px rgba(255, 152, 0, 0.4);
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(255, 152, 0, 0.5); }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; }
.hamburger span { width: 24px; height: 3px; background: var(--primary); border-radius: 3px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 30px;
  border-radius: 30px;
  font-size: 15px; font-weight: 600;
  border: none; cursor: pointer;
  transition: all 0.3s ease;
}
.btn-primary { background: linear-gradient(135deg, var(--primary-light), var(--primary)); color: #fff; box-shadow: 0 6px 20px rgba(13, 71, 161, 0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(13, 71, 161, 0.45); }
.btn-accent { background: linear-gradient(135deg, var(--accent), var(--accent-dark)); color: #fff; box-shadow: 0 6px 20px rgba(255, 152, 0, 0.4); }
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(255, 152, 0, 0.5); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-white { background: #fff; color: var(--primary); }
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(0,0,0,0.2); }
.btn-lg { padding: 16px 38px; font-size: 16px; }

/* ===== 区块标题 ===== */
.section { padding: 90px 0; }
.section-gray { background: var(--gray-1); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 55px; }
.section-tag {
  display: inline-block;
  background: rgba(13, 71, 161, 0.08);
  color: var(--primary);
  font-size: 13px; font-weight: 600;
  padding: 6px 18px;
  border-radius: 20px;
  letter-spacing: 2px;
  margin-bottom: 14px;
}
.section-head h2 { font-size: 34px; color: var(--dark); font-weight: 800; letter-spacing: 1px; }
.section-head h2 em { font-style: normal; color: var(--primary); }
.section-head p { color: var(--text-light); margin-top: 12px; font-size: 15px; }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 620px;
  display: flex; align-items: center;
  background: linear-gradient(120deg, #0a2a52 0%, #0d47a1 55%, #1565c0 100%);
  color: #fff;
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; opacity: 0.25; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 70% 30%, rgba(255,152,0,0.18), transparent 50%);
}
.hero .container { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: center; padding: 90px 24px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(6px);
  padding: 8px 18px;
  border-radius: 30px;
  font-size: 13px; letter-spacing: 1px;
  margin-bottom: 22px;
}
.hero-badge .dot { width: 8px; height: 8px; background: #4ade80; border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
.hero h1 { font-size: 46px; font-weight: 800; line-height: 1.25; letter-spacing: 1px; margin-bottom: 18px; }
.hero h1 span { color: var(--accent); }
.hero .sub { font-size: 16px; color: rgba(255,255,255,0.85); margin-bottom: 32px; max-width: 520px; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 40px; margin-top: 46px; }
.hero-stats .stat strong { display: block; font-size: 30px; font-weight: 800; color: #fff; }
.hero-stats .stat span { font-size: 13px; color: rgba(255,255,255,0.7); }
.hero-visual { position: relative; z-index: 2; }
.hero-visual img { border-radius: 20px; box-shadow: 0 30px 60px rgba(0,0,0,0.4); transform: rotate(1deg); }
.hero-float-card {
  position: absolute;
  background: #fff; color: var(--text);
  border-radius: 14px; padding: 14px 20px;
  box-shadow: var(--shadow-lg);
  font-size: 13px;
  display: flex; align-items: center; gap: 10px;
  animation: floaty 4s ease-in-out infinite;
}
.hero-float-card .ic {
  width: 38px; height: 38px; border-radius: 10px;
  background: rgba(13,71,161,0.1); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
}
.hero-float-card strong { display: block; font-size: 14px; }
.hero-float-card span { color: var(--text-light); font-size: 12px; }
.hero-float-card.f1 { top: -18px; right: -10px; animation-delay: 0.5s; }
.hero-float-card.f2 { bottom: 40px; left: -30px; animation-delay: 1.5s; }
.hero-float-card.f3 { bottom: -22px; right: 30px; animation-delay: 2.5s; }
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ===== 信任条 ===== */
.trust-bar { background: var(--white); border-bottom: 1px solid var(--gray-2); padding: 26px 0; }
.trust-bar .container { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.trust-item { display: flex; align-items: center; gap: 14px; }
.trust-item .ic {
  width: 48px; height: 48px; flex-shrink: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(13,71,161,0.1), rgba(21,101,192,0.06));
  color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
}
.trust-item strong { display: block; font-size: 15px; }
.trust-item span { font-size: 12px; color: var(--text-light); }

/* ===== 服务卡片 ===== */
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.service-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 34px 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-2);
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light), var(--accent));
  opacity: 0; transition: opacity 0.35s;
}
.service-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.service-card:hover::before { opacity: 1; }
.service-card .s-icon {
  width: 62px; height: 62px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
  box-shadow: 0 8px 20px rgba(13,71,161,0.3);
}
.service-card h3 { font-size: 19px; margin-bottom: 10px; color: var(--dark); }
.service-card p { color: var(--text-light); font-size: 14px; margin-bottom: 16px; }
.service-card .more { color: var(--primary); font-size: 14px; font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }
.service-card .more:hover { gap: 8px; }

/* ===== 流程 ===== */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.step {
  background: #fff;
  border-radius: var(--radius);
  padding: 30px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-2);
  position: relative;
  transition: all 0.3s;
}
.step:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.step-num {
  width: 54px; height: 54px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff; font-size: 20px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
  box-shadow: 0 8px 20px rgba(255,152,0,0.35);
}
.step h4 { font-size: 16px; margin-bottom: 8px; color: var(--dark); }
.step p { font-size: 13px; color: var(--text-light); }

/* ===== 产品 ===== */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.product-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-2);
  transition: all 0.35s;
}
.product-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.product-card .p-img { height: 190px; overflow: hidden; position: relative; }
.product-card .p-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.product-card:hover .p-img img { transform: scale(1.08); }
.product-card .p-tag {
  position: absolute; top: 12px; left: 12px;
  background: var(--accent); color: #fff;
  font-size: 12px; font-weight: 600;
  padding: 4px 12px; border-radius: 20px;
}
.product-card .p-body { padding: 18px 20px 22px; }
.product-card .p-body h4 { font-size: 15px; margin-bottom: 6px; color: var(--dark); }
.product-card .p-body p { font-size: 13px; color: var(--text-light); margin-bottom: 10px; }
.product-card .p-price { color: var(--accent-dark); font-size: 16px; font-weight: 700; }
.product-card .p-price small { font-size: 12px; color: var(--text-light); font-weight: 400; }

/* ===== 案例 ===== */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.case-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-2);
  transition: all 0.35s;
}
.case-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.case-card .c-img { height: 200px; overflow: hidden; }
.case-card .c-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.case-card:hover .c-img img { transform: scale(1.06); }
.case-card .c-body { padding: 22px 24px; }
.case-card .c-body h4 { font-size: 16px; margin-bottom: 8px; color: var(--dark); }
.case-card .c-body p { font-size: 13px; color: var(--text-light); margin-bottom: 12px; }
.case-meta { display: flex; gap: 16px; font-size: 12px; color: var(--gray-3); }
.case-meta span { display: inline-flex; align-items: center; gap: 4px; }

/* ===== CTA 横幅 ===== */
.cta-banner {
  background: linear-gradient(120deg, #0a2a52, #0d47a1 60%, #1565c0);
  border-radius: 24px;
  padding: 56px 60px;
  display: flex; justify-content: space-between; align-items: center; gap: 40px;
  color: #fff;
  box-shadow: var(--shadow-lg);
  position: relative; overflow: hidden;
}
.cta-banner::after {
  content: ""; position: absolute; right: -60px; top: -60px;
  width: 260px; height: 260px;
  background: radial-gradient(circle, rgba(255,152,0,0.25), transparent 70%);
}
.cta-banner h3 { font-size: 26px; font-weight: 800; margin-bottom: 8px; }
.cta-banner p { color: rgba(255,255,255,0.85); font-size: 15px; }
.cta-banner .btn { z-index: 1; }

/* ===== 关于 ===== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-grid .img-wrap { position: relative; }
.about-grid .img-wrap img { border-radius: 18px; box-shadow: var(--shadow-lg); }
.about-grid .img-wrap .exp-badge {
  position: absolute; bottom: -20px; right: -20px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff; border-radius: 16px;
  padding: 18px 26px; text-align: center;
  box-shadow: 0 12px 30px rgba(255,152,0,0.4);
}
.about-grid .exp-badge strong { font-size: 28px; display: block; line-height: 1.1; }
.about-grid .exp-badge span { font-size: 12px; }
.about-text h2 { font-size: 30px; color: var(--dark); margin-bottom: 18px; font-weight: 800; }
.about-text h2 em { font-style: normal; color: var(--primary); }
.about-text p { color: var(--text-light); margin-bottom: 16px; font-size: 15px; }
.about-list { margin: 24px 0 32px; display: grid; gap: 14px; }
.about-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; color: var(--text); }
.about-list .ck {
  width: 24px; height: 24px; flex-shrink: 0;
  background: rgba(13,71,161,0.1); color: var(--primary);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
}

/* ===== 数据大屏 ===== */
.stats-band { background: linear-gradient(120deg, var(--dark), var(--dark-2)); color: #fff; padding: 60px 0; }
.stats-band .container { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.stats-band .s-item strong { font-size: 36px; font-weight: 800; color: var(--accent); display: block; }
.stats-band .s-item span { font-size: 14px; color: rgba(255,255,255,0.7); }

/* ===== 页脚 ===== */
.footer { background: var(--dark); color: #94a3b8; padding: 70px 0 0; }
.footer .container { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 50px; }
.footer h4 { color: #fff; font-size: 16px; margin-bottom: 20px; letter-spacing: 1px; }
.footer .f-brand .logo-text strong { color: #fff; }
.footer .f-brand p { font-size: 14px; margin-top: 16px; max-width: 300px; }
.footer ul li { margin-bottom: 10px; }
.footer ul li a { font-size: 14px; }
.footer ul li a:hover { color: var(--accent); padding-left: 4px; }
.footer .f-contact li { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; }
.footer .f-contact .ic { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; font-size: 13px; }
.footer-bottom .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; padding-bottom: 0; }
.footer-bottom a:hover { color: var(--accent); }

/* ===== 浮动咨询按钮 ===== */
.float-cta {
  position: fixed; right: 26px; bottom: 30px;
  z-index: 1000;
  display: flex; flex-direction: column; gap: 12px;
}
.float-cta a {
  width: 54px; height: 54px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  transition: all 0.3s;
}
.float-cta .f-phone { background: linear-gradient(135deg, var(--accent), var(--accent-dark)); color: #fff; }
.float-cta .f-wechat { background: #07c160; color: #fff; }
.float-cta a:hover { transform: scale(1.12); }

/* ===== 页头 banner ===== */
.page-hero { background: linear-gradient(120deg, #0a2a52, #0d47a1 60%, #1565c0); color: #fff; padding: 70px 0; position: relative; overflow: hidden; }
.page-hero::after { content: ""; position: absolute; right: -80px; top: -80px; width: 320px; height: 320px; background: radial-gradient(circle, rgba(255,152,0,0.2), transparent 70%); }
.page-hero .container { position: relative; z-index: 2; }
.page-hero .crumbs { font-size: 13px; color: rgba(255,255,255,0.7); margin-bottom: 12px; }
.page-hero .crumbs a:hover { color: var(--accent); }
.page-hero h1 { font-size: 36px; font-weight: 800; letter-spacing: 1px; }
.page-hero p { color: rgba(255,255,255,0.85); margin-top: 10px; font-size: 15px; max-width: 640px; }

/* ===== 服务详情页 ===== */
.service-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; margin-bottom: 70px; }
.service-detail-grid.reverse { direction: rtl; }
.service-detail-grid > * { direction: ltr; }
.service-detail-grid .sd-img img { border-radius: 18px; box-shadow: var(--shadow-lg); }
.sd-body h3 { font-size: 24px; color: var(--dark); margin-bottom: 14px; font-weight: 800; }
.sd-body h3 span { color: var(--primary); }
.sd-body p { color: var(--text-light); font-size: 14.5px; margin-bottom: 12px; }
.sd-list { margin: 18px 0; display: grid; gap: 10px; }
.sd-list li { display: flex; gap: 10px; font-size: 14px; color: var(--text); align-items: flex-start; }
.sd-list .ic { color: var(--primary); flex-shrink: 0; }
.sd-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.sd-tags span { background: var(--gray-1); border: 1px solid var(--gray-2); color: var(--text-light); font-size: 12px; padding: 5px 14px; border-radius: 20px; }

/* ===== 价格表 ===== */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.price-card { background: #fff; border-radius: var(--radius); padding: 34px 30px; box-shadow: var(--shadow); border: 1px solid var(--gray-2); transition: all 0.35s; }
.price-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.price-card.featured { border: 2px solid var(--primary); position: relative; }
.price-card.featured::before { content: "热销"; position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--accent); color: #fff; font-size: 12px; padding: 4px 18px; border-radius: 20px; font-weight: 600; }
.price-card .p-name { font-size: 16px; font-weight: 700; color: var(--dark); }
.price-card .p-amount { margin: 14px 0; color: var(--accent-dark); font-size: 34px; font-weight: 800; }
.price-card .p-amount small { font-size: 14px; color: var(--text-light); font-weight: 400; }
.price-card ul { margin: 18px 0 24px; display: grid; gap: 10px; }
.price-card ul li { display: flex; gap: 8px; font-size: 13.5px; color: var(--text-light); }
.price-card ul li .ck { color: var(--primary); }

/* ===== FAQ ===== */
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--gray-2); border-radius: 12px; margin-bottom: 14px; overflow: hidden; transition: all 0.3s; }
.faq-item.open { box-shadow: var(--shadow); border-color: rgba(13,71,161,0.3); }
.faq-q { padding: 20px 26px; display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-size: 15.5px; font-weight: 600; color: var(--dark); }
.faq-q .arrow { transition: transform 0.3s; color: var(--primary); }
.faq-item.open .faq-q .arrow { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-a p { padding: 0 26px 20px; color: var(--text-light); font-size: 14px; }

/* ===== 联系页 ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 50px; }
.contact-info-card { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; border-radius: 18px; padding: 40px 36px; box-shadow: var(--shadow-lg); }
.contact-info-card h3 { font-size: 22px; margin-bottom: 10px; }
.contact-info-card > p { color: rgba(255,255,255,0.8); font-size: 14px; margin-bottom: 28px; }
.ci-item { display: flex; gap: 16px; margin-bottom: 22px; align-items: flex-start; }
.ci-item .ic { width: 46px; height: 46px; flex-shrink: 0; border-radius: 12px; background: rgba(255,255,255,0.15); display: flex; align-items: center; justify-content: center; font-size: 20px; }
.ci-item strong { display: block; font-size: 14px; color: rgba(255,255,255,0.75); font-weight: 500; }
.ci-item span, .ci-item a { font-size: 15px; font-weight: 600; }
.ci-item a:hover { color: var(--accent); }
.contact-form-card { background: #fff; border-radius: 18px; padding: 40px 36px; box-shadow: var(--shadow); border: 1px solid var(--gray-2); }
.contact-form-card h3 { font-size: 22px; color: var(--dark); margin-bottom: 6px; }
.contact-form-card > p { color: var(--text-light); font-size: 14px; margin-bottom: 26px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gray-2);
  border-radius: 10px;
  font-size: 14.5px;
  font-family: inherit;
  transition: all 0.3s;
  background: var(--gray-1);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--primary); background: #fff;
  box-shadow: 0 0 0 4px rgba(13,71,161,0.08);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.map-wrap { margin-top: 70px; }
.map-wrap h3 { font-size: 24px; color: var(--dark); text-align: center; margin-bottom: 10px; font-weight: 800; }
.map-wrap .map-sub { text-align: center; color: var(--text-light); font-size: 14px; margin-bottom: 24px; }
.map-box { border-radius: 18px; overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--gray-2); height: 420px; background: var(--gray-1); position: relative; }
.map-box iframe { width: 100%; height: 100%; border: 0; }

/* ===== 响应式 ===== */
@media (max-width: 992px) {
  .service-grid, .case-grid, .price-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .hero .container { grid-template-columns: 1fr; gap: 50px; padding: 60px 24px; }
  .hero h1 { font-size: 36px; }
  .hero-visual { max-width: 560px; }
  .trust-bar .container { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .service-detail-grid { grid-template-columns: 1fr; gap: 40px; }
  .service-detail-grid.reverse { direction: ltr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer .container { grid-template-columns: repeat(2, 1fr); }
  .stats-band .container { grid-template-columns: repeat(2, 1fr); }
  .cta-banner { flex-direction: column; text-align: center; padding: 44px 30px; }
}
@media (max-width: 768px) {
  .nav-links {
    position: fixed; top: 0; right: -100%;
    width: 75%; height: 100vh;
    background: #fff; flex-direction: column;
    justify-content: flex-start; padding: 90px 30px 30px;
    box-shadow: -10px 0 40px rgba(0,0,0,0.15);
    transition: right 0.35s ease;
    z-index: 1000;
  }
  .nav-links.open { right: 0; }
  .nav-links a { width: 100%; padding: 14px 18px; font-size: 16px; }
  .nav-cta { text-align: center; }
  .hamburger { display: flex; }
  .hero { min-height: auto; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .service-grid, .case-grid, .price-grid, .product-grid { grid-template-columns: 1fr; }
  .trust-bar .container { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer .container { grid-template-columns: 1fr; }
  .stats-band .container { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .section-head h2 { font-size: 26px; }
  .form-row { grid-template-columns: 1fr; }
  .page-hero h1 { font-size: 28px; }
  .hero-float-card.f2 { left: 0; }
  .hero-float-card.f3 { right: 0; }
}