/* ==========================================================
   诚服科技 chengfukeji.cn - 企业官网样式
   ========================================================== */

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #60a5fa;
  --accent: #06b6d4;
  --dark: #0b1120;
  --dark-2: #111a2e;
  --dark-3: #1a2540;
  --text: #334155;
  --text-light: #64748b;
  --bg: #ffffff;
  --bg-gray: #f4f6fb;
  --border: #e5e9f2;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.14);
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, "Hiragino Sans GB", sans-serif;
  --container: 1200px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(11, 17, 32, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s ease;
}

.site-header.scrolled {
  background: rgba(11, 17, 32, 0.96);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.5px;
}

.logo .logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  flex-shrink: 0;
}

.logo .logo-en {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: var(--primary-light);
  letter-spacing: 2px;
  line-height: 1.2;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 34px;
}

.main-nav a {
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
  position: relative;
  padding: 6px 0;
  transition: color 0.25s;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-light), var(--accent));
  border-radius: 2px;
  transition: width 0.3s;
}

.main-nav a:hover,
.main-nav a.active {
  color: #fff;
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: var(--font);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(37, 99, 235, 0.45);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.45);
}

.btn-outline:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.btn-dark {
  background: var(--dark);
  color: #fff;
}

.btn-dark:hover {
  background: var(--primary);
}

.btn-lg {
  padding: 15px 36px;
  font-size: 16px;
}

.btn-ghost {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  color: #fff;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
}

/* 汉堡菜单 */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all 0.3s;
}

.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);
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand p {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.6);
  max-width: 320px;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 18px;
  font-weight: 600;
}

.footer-col li {
  margin-bottom: 12px;
}

.footer-col a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.25s;
}

.footer-col a:hover {
  color: var(--primary-light);
}

.footer-contact li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 14px;
}

.footer-contact .ic {
  color: var(--primary-light);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.45);
}

.footer-bottom a:hover {
  color: var(--primary-light);
}

/* ---------- 通用区块 ---------- */
.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--bg-gray);
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}

.section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: 38px;
  color: var(--dark);
  font-weight: 700;
  line-height: 1.3;
}

.section-head h2 span {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-head p {
  margin-top: 16px;
  color: var(--text-light);
  font-size: 16px;
}

/* 暗色区块头部 */
.section-head.light h2 {
  color: #fff;
}

.section-head.light p {
  color: rgba(255, 255, 255, 0.65);
}

.section-head.light .eyebrow {
  color: var(--primary-light);
}

/* ---------- 首页 Hero ---------- */
.hero {
  position: relative;
  background: radial-gradient(ellipse at 20% 20%, rgba(37, 99, 235, 0.35), transparent 55%),
    radial-gradient(ellipse at 85% 80%, rgba(6, 182, 212, 0.3), transparent 50%),
    linear-gradient(160deg, #0b1120 0%, #131c36 55%, #0b1120 100%);
  color: #fff;
  padding: 180px 0 120px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.6;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(37, 99, 235, 0.18);
  border: 1px solid rgba(96, 165, 250, 0.4);
  color: var(--primary-light);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 999px;
  margin-bottom: 26px;
  letter-spacing: 1px;
}

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: 1px;
}

.hero h1 .gradient {
  background: linear-gradient(135deg, #60a5fa, #22d3ee);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  margin-top: 24px;
  font-size: 17px;
  color: rgba(255, 255, 255, 0.72);
  max-width: 520px;
}

.hero-actions {
  margin-top: 38px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-stats {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 560px;
}

.hero-stats .stat {
  border-left: 2px solid rgba(96, 165, 250, 0.5);
  padding-left: 14px;
}

.hero-stats .num {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
}

.hero-stats .label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  margin-top: 2px;
}

/* Hero 右侧展示面板 */
.hero-visual {
  position: relative;
}

.hero-panel {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 20px;
  padding: 32px;
  backdrop-filter: blur(8px);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35);
}

.hero-panel .panel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
}

.hero-panel .dots {
  display: flex;
  gap: 6px;
}

.hero-panel .dots i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
}

.hero-panel .dots i:first-child { background: #f87171; }
.hero-panel .dots i:nth-child(2) { background: #fbbf24; }
.hero-panel .dots i:nth-child(3) { background: #34d399; }

.panel-bar {
  height: 6px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.panel-bar.g1 { width: 92%; background: linear-gradient(90deg, #3b82f6, #22d3ee); }
.panel-bar.g2 { width: 76%; background: linear-gradient(90deg, #6366f1, #818cf8); opacity: 0.75; }
.panel-bar.g3 { width: 84%; background: linear-gradient(90deg, #06b6d4, #67e8f9); opacity: 0.55; }

.panel-kpi {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 20px;
}

.kpi-card {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 16px;
}

.kpi-card .v {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
}

.kpi-card .t {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
}

.hero-float {
  position: absolute;
  background: #fff;
  color: var(--dark);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  animation: float 5s ease-in-out infinite;
}

.hero-float.f1 {
  top: -24px;
  right: -16px;
  animation-delay: 0.5s;
}

.hero-float.f2 {
  bottom: -20px;
  left: -24px;
  animation-delay: 2s;
}

.hero-float .ic {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

.hero-float .ic.blue { background: linear-gradient(135deg, #3b82f6, #6366f1); }
.hero-float .ic.cyan { background: linear-gradient(135deg, #06b6d4, #34d399); }

.hero-float .txt strong {
  display: block;
  font-size: 15px;
}

.hero-float .txt span {
  font-size: 12px;
  color: var(--text-light);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ---------- 信任条 ---------- */
.trust-bar {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 26px 0;
}

.trust-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.trust-inner .label {
  color: var(--text-light);
  font-size: 14px;
  white-space: nowrap;
}

.trust-inner .brands {
  display: flex;
  gap: 44px;
  flex-wrap: wrap;
  color: #94a3b8;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 1px;
  filter: grayscale(1);
  opacity: 0.85;
}

/* ---------- 服务卡片 ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 30px;
  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(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card .ic {
  width: 60px;
  height: 60px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  margin-bottom: 22px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
}

.service-card .ic.i2 { background: linear-gradient(135deg, #6366f1, #a855f7); box-shadow: 0 8px 20px rgba(99, 102, 241, 0.25); }
.service-card .ic.i3 { background: linear-gradient(135deg, #06b6d4, #3b82f6); box-shadow: 0 8px 20px rgba(6, 182, 212, 0.25); }
.service-card .ic.i4 { background: linear-gradient(135deg, #f59e0b, #ef4444); box-shadow: 0 8px 20px rgba(245, 158, 11, 0.25); }
.service-card .ic.i5 { background: linear-gradient(135deg, #10b981, #06b6d4); box-shadow: 0 8px 20px rgba(16, 185, 129, 0.25); }
.service-card .ic.i6 { background: linear-gradient(135deg, #8b5cf6, #ec4899); box-shadow: 0 8px 20px rgba(139, 92, 246, 0.25); }

.service-card h3 {
  font-size: 20px;
  color: var(--dark);
  margin-bottom: 12px;
}

.service-card p {
  font-size: 14.5px;
  color: var(--text-light);
  margin-bottom: 18px;
}

.service-card .more {
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s;
}

.service-card .more:hover {
  gap: 10px;
}

/* ---------- 解决方案 ---------- */
.solution-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 960px;
  margin: 0 auto;
}

.solution-item {
  display: flex;
  align-items: center;
  gap: 24px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  transition: all 0.3s;
}

.solution-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
  transform: translateX(6px);
}

.solution-item .ic {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.solution-item .txt {
  flex: 1;
}

.solution-item h3 {
  font-size: 18px;
  color: var(--dark);
  margin-bottom: 4px;
}

.solution-item p {
  font-size: 14px;
  color: var(--text-light);
}

.solution-item .tag {
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
}

/* ---------- 流程 ---------- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  counter-reset: step;
}

.process-step {
  text-align: center;
  position: relative;
  padding: 0 10px;
}

.process-step::after {
  content: "";
  position: absolute;
  top: 34px;
  left: calc(50% + 60px);
  width: calc(100% - 120px);
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--border) 0 6px, transparent 6px 12px);
}

.process-step:last-child::after {
  display: none;
}

.process-step .num {
  width: 68px;
  height: 68px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.3);
  position: relative;
  z-index: 2;
}

.process-step h3 {
  font-size: 17px;
  color: var(--dark);
  margin-bottom: 8px;
}

.process-step p {
  font-size: 13.5px;
  color: var(--text-light);
}

/* ---------- 数字/优势 ---------- */
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.advantage-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: all 0.3s;
}

.advantage-card:hover {
  background: rgba(255, 255, 255, 0.09);
  transform: translateY(-6px);
  border-color: rgba(96, 165, 250, 0.5);
}

.advantage-card .num {
  font-size: 44px;
  font-weight: 800;
  background: linear-gradient(135deg, #60a5fa, #22d3ee);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.advantage-card .num sup {
  font-size: 22px;
}

.advantage-card h3 {
  color: #fff;
  font-size: 17px;
  margin: 8px 0 6px;
}

.advantage-card p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

/* ---------- 案例 ---------- */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.case-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.35s;
}

.case-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.case-cover {
  height: 190px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.case-cover .graph {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.9);
}

.case-cover .graph svg {
  width: 90px;
  height: 90px;
  opacity: 0.9;
}

.case-cover .tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(11, 17, 32, 0.7);
  backdrop-filter: blur(4px);
  color: #fff;
  font-size: 12px;
  padding: 5px 12px;
  border-radius: 999px;
}

.case-body {
  padding: 24px;
}

.case-body h3 {
  font-size: 17px;
  color: var(--dark);
  margin-bottom: 8px;
}

.case-body p {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 14px;
}

.case-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
}

.case-cover.c1 { background: linear-gradient(135deg, #2563eb, #6366f1); }
.case-cover.c2 { background: linear-gradient(135deg, #0891b2, #2563eb); }
.case-cover.c3 { background: linear-gradient(135deg, #7c3aed, #db2777); }
.case-cover.c4 { background: linear-gradient(135deg, #059669, #0d9488); }
.case-cover.c5 { background: linear-gradient(135deg, #ea580c, #dc2626); }
.case-cover.c6 { background: linear-gradient(135deg, #0ea5e9, #06b6d4); }

/* ---------- 客户评价 ---------- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.testimonial-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all 0.3s;
}

.testimonial-card:hover {
  box-shadow: var(--shadow);
}

.testimonial-card .quote {
  font-size: 14.5px;
  color: var(--text);
  margin-bottom: 20px;
  position: relative;
  padding-left: 18px;
  border-left: 3px solid var(--primary);
}

.testimonial-card .who {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-card .avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
}

.testimonial-card .name {
  font-size: 15px;
  color: var(--dark);
  font-weight: 600;
}

.testimonial-card .role {
  font-size: 12.5px;
  color: var(--text-light);
}

/* ---------- CTA ---------- */
.cta-section {
  position: relative;
  background: linear-gradient(135deg, #1d4ed8 0%, #0e7490 100%);
  border-radius: 24px;
  padding: 72px 64px;
  text-align: center;
  color: #fff;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 28px 28px;
}

.cta-section h2 {
  font-size: 36px;
  font-weight: 800;
  position: relative;
  z-index: 2;
}

.cta-section p {
  margin: 16px auto 34px;
  max-width: 560px;
  color: rgba(255, 255, 255, 0.85);
  position: relative;
  z-index: 2;
}

.cta-section .cta-actions {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-section .btn-ghost {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.6);
}

/* ---------- 页面横幅（内页） ---------- */
.page-hero {
  position: relative;
  background: radial-gradient(ellipse at 15% 15%, rgba(37, 99, 235, 0.35), transparent 55%),
    linear-gradient(160deg, #0b1120 0%, #16233f 100%);
  color: #fff;
  padding: 160px 0 90px;
  text-align: center;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.6;
}

.page-hero h1 {
  font-size: 44px;
  font-weight: 800;
  position: relative;
  z-index: 2;
}

.page-hero .breadcrumb {
  margin-top: 14px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  position: relative;
  z-index: 2;
}

.page-hero .breadcrumb a {
  color: var(--primary-light);
}

/* ---------- 关于页 ---------- */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-intro .eyebrow {
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
  margin-bottom: 14px;
}

.about-intro h2 {
  font-size: 34px;
  color: var(--dark);
  line-height: 1.35;
  margin-bottom: 20px;
}

.about-intro p {
  color: var(--text-light);
  margin-bottom: 16px;
}

.about-intro .points {
  margin-top: 26px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.about-intro .points li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14.5px;
  color: var(--dark);
  font-weight: 500;
}

.about-intro .points .check {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 13px;
}

.about-visual {
  position: relative;
}

.about-visual .img-frame {
  border-radius: 20px;
  overflow: hidden;
  background: linear-gradient(135deg, #2563eb, #0e7490);
  padding: 0;
  min-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-visual .img-frame svg {
  width: 60%;
  opacity: 0.35;
}

.about-visual .exp-badge {
  position: absolute;
  bottom: -22px;
  right: 24px;
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  padding: 18px 26px;
  text-align: center;
}

.about-visual .exp-badge .n {
  font-size: 30px;
  font-weight: 800;
  color: var(--primary);
}

.about-visual .exp-badge .t {
  font-size: 13px;
  color: var(--text-light);
}

/* 核心价值观 */
.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.value-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  text-align: center;
  transition: all 0.3s;
}

.value-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.value-card .ic {
  width: 56px;
  height: 56px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.value-card h3 {
  font-size: 17px;
  color: var(--dark);
  margin-bottom: 8px;
}

.value-card p {
  font-size: 13.5px;
  color: var(--text-light);
}

/* 团队 */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.team-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: center;
  transition: all 0.3s;
}

.team-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.team-card .photo {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.85);
}

.team-card .photo svg {
  width: 70px;
  height: 70px;
  opacity: 0.8;
}

.team-card .photo.p1 { background: linear-gradient(135deg, #2563eb, #6366f1); }
.team-card .photo.p2 { background: linear-gradient(135deg, #0891b2, #06b6d4); }
.team-card .photo.p3 { background: linear-gradient(135deg, #7c3aed, #a855f7); }
.team-card .photo.p4 { background: linear-gradient(135deg, #059669, #10b981); }

.team-card .info {
  padding: 20px;
}

.team-card .info h3 {
  font-size: 17px;
  color: var(--dark);
}

.team-card .info .role {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  margin: 4px 0 10px;
}

.team-card .info p {
  font-size: 13px;
  color: var(--text-light);
}

/* ---------- 服务页 ---------- */
.service-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.detail-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px;
  transition: all 0.3s;
}

.detail-card:hover {
  box-shadow: var(--shadow);
  border-color: rgba(37, 99, 235, 0.4);
}

.detail-card .head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}

.detail-card .ic {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}

.detail-card h3 {
  font-size: 20px;
  color: var(--dark);
}

.detail-card p {
  font-size: 14.5px;
  color: var(--text-light);
  margin-bottom: 16px;
}

.detail-card ul li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  color: var(--text);
  padding: 6px 0;
  align-items: flex-start;
}

.detail-card ul li::before {
  content: "→";
  color: var(--primary);
  font-weight: 700;
}

/* 流程（服务页完整版） */
.process-steps {
  counter-reset: step;
}

/* ---------- 案例页 ---------- */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 9px 24px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.25s;
  font-family: var(--font);
}

.filter-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.filter-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  border-color: transparent;
}

/* ---------- 联系页 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
  align-items: start;
}

.contact-info-card {
  background: linear-gradient(160deg, #0b1120, #16233f);
  color: #fff;
  border-radius: var(--radius);
  padding: 40px 36px;
}

.contact-info-card h3 {
  font-size: 24px;
  margin-bottom: 10px;
}

.contact-info-card > p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14.5px;
  margin-bottom: 30px;
}

.contact-info-list li {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  align-items: flex-start;
}

.contact-info-list .ic {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(96, 165, 250, 0.15);
  color: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info-list .label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.contact-info-list .val {
  font-size: 15px;
  font-weight: 600;
}

.contact-form-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 8px;
}

.form-group label span {
  color: #ef4444;
}

.form-control {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  font-family: var(--font);
  color: var(--dark);
  background: var(--bg-gray);
  transition: all 0.25s;
  outline: none;
}

.form-control:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.form-tip {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 8px;
}

.form-success {
  display: none;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #059669;
  border-radius: 10px;
  padding: 14px 18px;
  font-size: 14px;
  margin-bottom: 20px;
}

.form-success.show {
  display: block;
}

/* 地图/合作占位 */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}

.partner-logo {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  height: 84px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #94a3b8;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 1px;
  filter: grayscale(1);
  opacity: 0.75;
  transition: all 0.3s;
}

.partner-logo:hover {
  filter: none;
  opacity: 1;
  box-shadow: var(--shadow);
}

/* ---------- 动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .hero h1 { font-size: 40px; }
  .hero-grid { grid-template-columns: 1fr; gap: 56px; }
  .hero-stats { max-width: 100%; }
  .services-grid, .cases-grid, .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .advantage-grid { grid-template-columns: repeat(2, 1fr); }
  .values-grid, .team-grid { grid-template-columns: repeat(2, 1fr); }
  .about-intro { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .process-step::after { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .partners-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--dark-2);
    padding: 20px 24px 30px;
    transform: translateY(-16px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 18px;
    align-items: flex-start;
  }

  .nav-toggle {
    display: flex;
  }

  .header-cta .btn {
    display: none;
  }

  .hero { padding: 150px 0 90px; }
  .hero h1 { font-size: 32px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .hero-float.f1 { right: 4px; }
  .hero-float.f2 { left: 4px; }
  .section { padding: 68px 0; }
  .section-head h2 { font-size: 30px; }
  .services-grid, .cases-grid, .testimonials-grid { grid-template-columns: 1fr; }
  .advantage-grid, .values-grid, .team-grid { grid-template-columns: 1fr 1fr; }
  .service-detail-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .cta-section { padding: 48px 28px; }
  .cta-section h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
  .page-hero h1 { font-size: 34px; }
  .solution-item { flex-direction: column; text-align: center; gap: 14px; }
  .process-grid { grid-template-columns: 1fr; }
  .about-intro .points { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .advantage-grid, .values-grid, .team-grid { grid-template-columns: 1fr; }
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-actions .btn { width: 100%; }
}