/* ==========================================================================
   云上未来 · 企业官网主样式
   极简蓝白商务风 / Desktop 1440 基准 / 自适应 375
   ========================================================================== */

/* ---------- CSS 变量（设计令牌） ---------- */
:root {
  /* 颜色 */
  --color-primary: #1e6fff;          /* 主品牌蓝 */
  --color-primary-deep: #1559d8;     /* 深蓝，按钮 hover */
  --color-primary-soft: #eaf2ff;     /* 浅蓝背景 */
  --color-primary-tint: #f5f9ff;     /* 更浅的蓝 */
  --color-accent: #00b6a1;           /* 辅助绿（数据高亮） */
  --color-text: #1f2937;             /* 主文字 */
  --color-text-2: #475569;           /* 次文字 */
  --color-text-3: #94a3b8;           /* 辅助文字 */
  --color-border: #e5e7eb;           /* 浅灰描边 */
  --color-bg: #ffffff;               /* 主背景 */
  --color-bg-2: #f8fafc;             /* 浅灰背景 */
  --color-bg-3: #f1f5f9;             /* 卡片底色 */
  --color-dark: #0f172a;             /* 深色块 */

  /* 字号 */
  --fs-h1: 56px;
  --fs-h2: 40px;
  --fs-h3: 28px;
  --fs-h4: 22px;
  --fs-h5: 18px;
  --fs-body: 16px;
  --fs-small: 14px;
  --fs-mini: 12px;

  /* 间距 */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;
  --sp-9: 96px;
  --sp-10: 120px;

  /* 容器 */
  --container: 1240px;

  /* 圆角 */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 24px;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.08);
  --shadow-blue: 0 12px 32px rgba(30, 111, 255, 0.18);

  /* 过渡 */
  --t-fast: 0.2s ease;
  --t-base: 0.3s ease;
  --t-slow: 0.5s ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--color-primary); }
button { font: inherit; cursor: pointer; border: 0; background: transparent; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 700; line-height: 1.3; color: var(--color-text); }
p { margin: 0; }
input, select, textarea { font: inherit; }

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

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--r-md);
  transition: all var(--t-base);
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-deep);
  color: #fff;
  box-shadow: var(--shadow-blue);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
}
.btn-ghost:hover {
  background: #fff;
  color: var(--color-primary);
  border-color: #fff;
}
.btn-lg { padding: 16px 40px; font-size: 16px; }
.btn-sm { padding: 8px 18px; font-size: 14px; }

/* ---------- 通用区块标题 ---------- */
.section { padding: 100px 0; }
.section-sm { padding: 60px 0; }
.section-title {
  text-align: center;
  margin-bottom: 64px;
}
.section-title .eyebrow {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title h2 {
  font-size: var(--fs-h2);
  color: var(--color-text);
  margin-bottom: 16px;
}
.section-title p {
  max-width: 720px;
  margin: 0 auto;
  color: var(--color-text-2);
  font-size: 17px;
  line-height: 1.8;
}

/* ==========================================================================
   顶部导航
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all var(--t-base);
}
.header.scrolled {
  background: rgba(255, 255, 255, 0.96);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.brand-logo {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--color-primary) 0%, #4f8cff 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(30, 111, 255, 0.3);
}
.brand-logo-img {
  height: 34px;
  width: auto;
  object-fit: contain;
  display: block;
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.brand-text .name {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
}
.brand-text .slogan {
  font-size: 12px;
  color: var(--color-text-3);
  margin-top: 2px;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-list a {
  position: relative;
  display: inline-block;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-2);
  border-radius: 8px;
  transition: all var(--t-fast);
}
.nav-list a:hover,
.nav-list a.active {
  color: var(--color-primary);
  background: var(--color-primary-soft);
}
.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}
.header-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-2);
  font-weight: 500;
}
.header-phone svg { color: var(--color-primary); }
.header-phone strong {
  color: var(--color-primary);
  font-size: 18px;
  font-weight: 600;
}
.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--color-text);
}
.menu-toggle:hover { background: var(--color-bg-2); }
.menu-toggle svg { width: 24px; height: 24px; }

/* 移动端抽屉 */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 320px;
  max-width: 85vw;
  height: 100vh;
  background: #fff;
  z-index: 1100;
  transition: right var(--t-base);
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}
.mobile-drawer.open { right: 0; }
.mobile-drawer-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-border);
}
.mobile-drawer-head .close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--color-text-2);
}
.mobile-drawer-head .close:hover { background: var(--color-bg-2); }
.mobile-drawer nav { padding: 16px 0; }
.mobile-drawer nav a {
  display: block;
  padding: 16px 24px;
  font-size: 16px;
  color: var(--color-text);
  border-left: 3px solid transparent;
  transition: all var(--t-fast);
}
.mobile-drawer nav a:hover,
.mobile-drawer nav a.active {
  background: var(--color-primary-tint);
  color: var(--color-primary);
  border-left-color: var(--color-primary);
}
.mobile-drawer-foot {
  padding: 20px 24px 32px;
  margin-top: auto;
  border-top: 1px solid var(--color-border);
}
.mobile-drawer-foot .btn { width: 100%; }
.mask {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  z-index: 1050;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-base);
}
.mask.open { opacity: 1; pointer-events: auto; }

/* ==========================================================================
   首屏 Hero
   ========================================================================== */
.hero {
  position: relative;
  padding: 180px 0 100px;
  background:
    radial-gradient(circle at 20% 20%, rgba(30, 111, 255, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 60%, rgba(0, 182, 161, 0.06) 0%, transparent 50%),
    linear-gradient(180deg, #f5f9ff 0%, #ffffff 100%);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(30, 111, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 111, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 80px;
  align-items: center;
}
.hero-text .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(30, 111, 255, 0.08);
  color: var(--color-primary);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 24px;
}
.hero-text .eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(30, 111, 255, 0.18);
}
.hero-text h1 {
  font-size: var(--fs-h1);
  line-height: 1.15;
  letter-spacing: -0.5px;
  margin-bottom: 24px;
}
.hero-text h1 .accent {
  background: linear-gradient(135deg, var(--color-primary) 0%, #4f8cff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-text p.lead {
  font-size: 18px;
  color: var(--color-text-2);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 540px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.hero-meta {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}
.hero-meta .item .num {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  font-family: -apple-system, "Helvetica Neue", sans-serif;
}
.hero-meta .item .label {
  font-size: 14px;
  color: var(--color-text-2);
  margin-top: 6px;
}
.hero-visual {
  position: relative;
  height: 480px;
}
.hero-card {
  position: absolute;
  background: #fff;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  padding: 20px;
  border: 1px solid var(--color-border);
}
.hero-card-1 {
  top: 20px;
  right: 0;
  width: 320px;
  animation: floatY 6s ease-in-out infinite;
}
.hero-card-2 {
  bottom: 30px;
  left: 0;
  width: 280px;
  animation: floatY 6s ease-in-out 1.5s infinite;
}
.hero-card-3 {
  top: 50%;
  left: 40%;
  transform: translate(-50%, -50%);
  width: 240px;
  animation: floatY 6s ease-in-out 0.8s infinite;
}
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.hero-card-3 { animation-name: floatY3; }
@keyframes floatY3 {
  0%, 100% { transform: translate(-50%, -50%) translateY(0); }
  50% { transform: translate(-50%, calc(-50% - 10px)); }
}
.hero-card .row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.hero-card .row:last-child { margin-bottom: 0; }
.hero-card .avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4f8cff, #1e6fff);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  flex-shrink: 0;
}
.hero-card .avatar.green { background: linear-gradient(135deg, #00b6a1, #008b7a); }
.hero-card .avatar.orange { background: linear-gradient(135deg, #ff8a4c, #ff6b1c); }
.hero-card .info .name { font-size: 14px; font-weight: 600; color: var(--color-text); }
.hero-card .info .sub { font-size: 12px; color: var(--color-text-3); margin-top: 2px; }
.hero-card .bar {
  height: 6px;
  background: var(--color-bg-3);
  border-radius: 4px;
  overflow: hidden;
  margin-top: 8px;
}
.hero-card .bar i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), #4f8cff);
  border-radius: 4px;
}
.hero-card .bar.green i { background: linear-gradient(90deg, #00b6a1, #4cd2c1); }
.hero-card .bar.orange i { background: linear-gradient(90deg, #ff8a4c, #ffae80); }
.hero-card .num-big {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-top: 6px;
}
.hero-card .num-big.green { color: #00b6a1; }
.hero-card .num-big.orange { color: #ff6b1c; }
.hero-card .label { font-size: 12px; color: var(--color-text-2); margin-top: 4px; }

/* ==========================================================================
   信任数据条
   ========================================================================== */
.stats {
  background: linear-gradient(135deg, var(--color-primary) 0%, #4f8cff 100%);
  color: #fff;
  padding: 56px 0;
  position: relative;
  overflow: hidden;
}
.stats::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 10% 30%, rgba(255, 255, 255, 0.12) 0%, transparent 30%),
    radial-gradient(circle at 90% 70%, rgba(255, 255, 255, 0.08) 0%, transparent 30%);
  pointer-events: none;
}
.stats-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-item .num {
  font-size: 48px;
  font-weight: 700;
  line-height: 1;
  font-family: -apple-system, "Helvetica Neue", sans-serif;
}
.stat-item .num .unit {
  font-size: 24px;
  margin-left: 4px;
  font-weight: 500;
}
.stat-item .label {
  font-size: 15px;
  opacity: 0.92;
  margin-top: 12px;
}

/* ==========================================================================
   核心优势
   ========================================================================== */
.features {
  background: var(--color-bg);
  padding: 100px 0;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  position: relative;
  padding: 36px 32px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  transition: all var(--t-base);
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), #4f8cff);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-base);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-soft);
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: all var(--t-base);
}
.feature-card:hover .feature-icon {
  background: var(--color-primary);
  color: #fff;
  transform: scale(1.05);
}
.feature-card h3 {
  font-size: var(--fs-h5);
  margin-bottom: 12px;
}
.feature-card p {
  color: var(--color-text-2);
  font-size: 15px;
  line-height: 1.7;
}

/* ==========================================================================
   业务板块
   ========================================================================== */
.business {
  background: var(--color-bg-2);
  padding: 100px 0;
}
.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.biz-card {
  position: relative;
  padding: 40px 32px;
  background: #fff;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--t-base);
  overflow: hidden;
}
.biz-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.biz-card .num-tag {
  position: absolute;
  top: 24px;
  right: 24px;
  font-size: 64px;
  font-weight: 800;
  color: var(--color-primary-soft);
  line-height: 1;
  font-family: -apple-system, "Helvetica Neue", sans-serif;
}
.biz-card h3 {
  font-size: var(--fs-h4);
  margin-bottom: 16px;
  position: relative;
}
.biz-card .desc {
  color: var(--color-text-2);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 24px;
}
.biz-list {
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
}
.biz-list li {
  position: relative;
  padding: 8px 0 8px 22px;
  color: var(--color-text-2);
  font-size: 14px;
}
.biz-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 18px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

/* ==========================================================================
   案例轮播 + 客户 logo 墙
   ========================================================================== */
.cases-preview { background: #fff; padding: 100px 0; }
.cases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.case-card {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--color-border);
  transition: all var(--t-base);
  cursor: pointer;
}
.case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.case-thumb {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #eaf2ff 0%, #d6e6ff 100%);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  overflow: hidden;
}
.case-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(15, 23, 42, 0.6) 100%);
}
.case-thumb .tag {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-primary);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  z-index: 2;
}
.case-info {
  padding: 24px;
}
.case-info h3 {
  font-size: 18px;
  margin-bottom: 8px;
}
.case-info .desc {
  color: var(--color-text-2);
  font-size: 14px;
  margin-bottom: 16px;
  line-height: 1.6;
}
.case-metrics {
  display: flex;
  gap: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}
.case-metrics .m {
  flex: 1;
}
.case-metrics .m .v {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}
.case-metrics .m .l {
  font-size: 12px;
  color: var(--color-text-3);
  margin-top: 4px;
}

/* 客户 logo 墙 */
.logo-wall {
  background: var(--color-bg-2);
  padding: 80px 0;
}
.logo-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
}
.logo-tab {
  padding: 8px 20px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 14px;
  color: var(--color-text-2);
  cursor: pointer;
  transition: all var(--t-fast);
}
.logo-tab.active,
.logo-tab:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.logo-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.logo-item {
  aspect-ratio: 16/9;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  transition: all var(--t-fast);
}
.logo-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.logo-item img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: grayscale(0.2);
  transition: filter var(--t-fast);
}
.logo-item:hover img { filter: grayscale(0); }

/* ==========================================================================
   关于我们 / 底部联系栏
   ========================================================================== */
.about-preview {
  background: #fff;
  padding: 100px 0;
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-visual {
  position: relative;
  aspect-ratio: 1;
  background: linear-gradient(135deg, #eaf2ff 0%, #f5f9ff 100%);
  border-radius: var(--r-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.about-visual::before {
  content: '';
  position: absolute;
  width: 80%;
  height: 80%;
  background:
    radial-gradient(circle at 30% 30%, rgba(30, 111, 255, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 70% 70%, rgba(0, 182, 161, 0.08) 0%, transparent 50%);
}
.about-visual .big-num {
  position: relative;
  font-size: 140px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary) 0%, #4f8cff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  font-family: -apple-system, "Helvetica Neue", sans-serif;
}
.about-visual .big-label {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 18px;
  color: var(--color-text-2);
  white-space: nowrap;
}
.about-text h2 {
  font-size: var(--fs-h2);
  margin-bottom: 24px;
}
.about-text p {
  color: var(--color-text-2);
  font-size: 16px;
  line-height: 1.9;
  margin-bottom: 24px;
}
.about-mv {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 32px 0;
}
.mv-card {
  padding: 20px;
  background: var(--color-primary-tint);
  border-radius: var(--r-md);
  border-left: 3px solid var(--color-primary);
}
.mv-card .label {
  font-size: 13px;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 6px;
}
.mv-card p {
  font-size: 14px;
  color: var(--color-text);
  margin: 0;
  line-height: 1.7;
}

/* 荣誉资质 */
.honors-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 48px;
}
.honor {
  padding: 20px 16px;
  background: var(--color-bg-2);
  border-radius: var(--r-md);
  text-align: center;
  border: 1px solid transparent;
  transition: all var(--t-fast);
}
.honor:hover {
  border-color: var(--color-primary);
  background: #fff;
  transform: translateY(-2px);
}
.honor .year {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}
.honor .name {
  font-size: 13px;
  color: var(--color-text-2);
  margin-top: 8px;
  line-height: 1.5;
}

/* 底部联系栏 */
.contact-cta {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: #fff;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.contact-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 10% 50%, rgba(30, 111, 255, 0.2) 0%, transparent 50%),
    radial-gradient(circle at 90% 50%, rgba(0, 182, 161, 0.12) 0%, transparent 50%);
}
.contact-cta-inner {
  position: relative;
  text-align: center;
}
.contact-cta h2 {
  font-size: 36px;
  color: #fff;
  margin-bottom: 16px;
}
.contact-cta p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 17px;
  margin-bottom: 40px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.contact-methods {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}
.contact-method {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 32px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--r-md);
  transition: all var(--t-base);
  text-align: left;
}
.contact-method:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-primary);
}
.contact-method .ic {
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}
.contact-method .label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 4px;
}
.contact-method .value {
  font-size: 18px;
  font-weight: 600;
  color: #fff;
}

/* ==========================================================================
   页脚
   ========================================================================== */
.footer {
  background: #0a0f1d;
  color: rgba(255, 255, 255, 0.65);
  padding: 64px 0 24px;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 20px;
}
.footer-col p { line-height: 1.8; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col a { color: rgba(255, 255, 255, 0.65); }
.footer-col a:hover { color: #fff; }
.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.footer-brand .brand-logo-img {
  height: 42px;
  width: auto;
  object-fit: contain;
}
.footer-brand .name {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}
.footer-qr {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
}
.footer-qr img {
  width: 80px;
  height: 80px;
  border-radius: 8px;
  background: #fff;
  padding: 4px;
}
.footer-qr .tip {
  font-size: 12px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.5);
}
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}
.footer-bottom a { color: inherit; }
.footer-bottom a:hover { color: rgba(255, 255, 255, 0.8); }

/* ==========================================================================
   内页通用头图（面包屑）
   ========================================================================== */
.page-header {
  position: relative;
  padding: 140px 0 80px;
  background:
    radial-gradient(circle at 30% 40%, rgba(30, 111, 255, 0.1) 0%, transparent 60%),
    linear-gradient(180deg, #f5f9ff 0%, #ffffff 100%);
  text-align: center;
  overflow: hidden;
}
.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(30, 111, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 111, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  pointer-events: none;
}
.page-header-inner { position: relative; }
.page-header h1 {
  font-size: 40px;
  margin-bottom: 16px;
}
.page-header p {
  color: var(--color-text-2);
  font-size: 17px;
  max-width: 720px;
  margin: 0 auto;
}
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
  font-size: 14px;
  color: var(--color-text-3);
}
.breadcrumb a { color: var(--color-text-2); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .sep { color: var(--color-text-3); }

/* ==========================================================================
   关于我们
   ========================================================================== */
.intro-block { padding: 100px 0; }
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.intro-text h2 {
  font-size: var(--fs-h2);
  margin-bottom: 24px;
}
.intro-text h2 .accent { color: var(--color-primary); }
.intro-text .lead {
  font-size: 17px;
  color: var(--color-text-2);
  line-height: 1.9;
  margin-bottom: 24px;
}
.intro-text ul { margin-top: 24px; }
.intro-text ul li {
  position: relative;
  padding: 12px 0 12px 32px;
  font-size: 15px;
  color: var(--color-text-2);
  border-bottom: 1px dashed var(--color-border);
}
.intro-text ul li:last-child { border-bottom: 0; }
.intro-text ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 12px;
  width: 20px;
  height: 20px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
}
.intro-visual {
  position: relative;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #eaf2ff 0%, #d6e6ff 100%);
  border-radius: var(--r-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 32px;
  align-content: center;
}
.intro-visual .stat {
  background: #fff;
  padding: 24px;
  border-radius: var(--r-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.intro-visual .stat .v {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}
.intro-visual .stat .l {
  font-size: 14px;
  color: var(--color-text-2);
  margin-top: 8px;
}

/* 时间轴 */
.timeline { background: var(--color-bg-2); padding: 100px 0; }
.timeline-list {
  position: relative;
  max-width: 960px;
  margin: 0 auto;
}
.timeline-list::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
  transform: translateX(-50%);
}
.tl-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 40px;
}
.tl-item:last-child { margin-bottom: 0; }
.tl-item .card {
  background: #fff;
  padding: 24px 28px;
  border-radius: var(--r-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  position: relative;
}
.tl-item .card::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 12px;
  height: 12px;
  background: #fff;
  border-right: 1px solid var(--color-border);
  border-top: 1px solid var(--color-border);
  transform: translateY(-50%) rotate(45deg);
}
.tl-item .left .card::after {
  right: -7px;
}
.tl-item .right .card::after {
  left: -7px;
  border-right: 0;
  border-left: 1px solid var(--color-border);
}
.tl-item .year {
  font-size: 28px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  font-family: -apple-system, "Helvetica Neue", sans-serif;
}
.tl-item .card h4 {
  font-size: 17px;
  margin-bottom: 8px;
}
.tl-item .card p {
  font-size: 14px;
  color: var(--color-text-2);
  line-height: 1.7;
}
.tl-item .dot {
  width: 18px;
  height: 18px;
  background: var(--color-primary);
  border: 4px solid #fff;
  border-radius: 50%;
  box-shadow: 0 0 0 2px var(--color-primary);
  z-index: 2;
}

/* 团队 */
.team { background: #fff; padding: 100px 0; }
.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 880px;
  margin: 0 auto;
}
.team-card {
  display: flex;
  gap: 24px;
  padding: 32px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  transition: all var(--t-base);
}
.team-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--color-primary-soft);
}
.team-photo {
  width: 110px;
  height: 130px;
  border-radius: var(--r-md);
  background: var(--color-bg-3);
  object-fit: cover;
  object-position: center 35%;
  flex-shrink: 0;
}
.team-photo.photo-zhang {
  object-position: center 20%;
}
.team-photo.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-3);
  font-size: 13px;
  background: linear-gradient(135deg, var(--color-primary-soft), var(--color-primary-tint));
}
.team-info h4 {
  font-size: 20px;
  margin-bottom: 4px;
}
.team-info .role {
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: 16px;
}
.team-info ul li {
  position: relative;
  padding: 6px 0 6px 18px;
  font-size: 14px;
  color: var(--color-text-2);
  line-height: 1.6;
}
.team-info ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 16px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

/* 商家赋能 */
.empower { background: var(--color-bg-2); padding: 100px 0; }
.empower-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.empower-card {
  background: #fff;
  padding: 32px 24px;
  border-radius: var(--r-lg);
  text-align: center;
  border: 1px solid var(--color-border);
  transition: all var(--t-base);
}
.empower-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}
.empower-card .ic {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.empower-card h4 {
  font-size: 18px;
  margin-bottom: 12px;
}
.empower-card p {
  font-size: 14px;
  color: var(--color-text-2);
  line-height: 1.7;
}

/* 服务理念 */
.philosophy { background: #fff; padding: 100px 0; }
.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.philosophy-card {
  padding: 40px 32px;
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, #f5f9ff 0%, #eaf2ff 100%);
  text-align: center;
}
.philosophy-card .ic {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: #fff;
  color: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}
.philosophy-card h4 {
  font-size: 19px;
  margin-bottom: 12px;
}
.philosophy-card p {
  color: var(--color-text-2);
  font-size: 14px;
  line-height: 1.8;
}

/* ==========================================================================
   产品/服务中心
   ========================================================================== */
.services-page { padding: 80px 0; }
.service-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 48px;
}
.service-tab {
  padding: 10px 24px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 15px;
  color: var(--color-text-2);
  cursor: pointer;
  transition: all var(--t-fast);
}
.service-tab.active,
.service-tab:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.service-panel { display: none; }
.service-panel.active { display: block; animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.svc-category { margin-bottom: 60px; }
.svc-category-head {
  text-align: center;
  margin-bottom: 40px;
}
.svc-category-head .num {
  display: inline-block;
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.svc-category-head h3 {
  font-size: 30px;
  margin-bottom: 12px;
}
.svc-category-head p {
  color: var(--color-text-2);
  font-size: 16px;
  max-width: 600px;
  margin: 0 auto;
}
.svc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.svc-card {
  background: #fff;
  padding: 32px 28px;
  border-radius: var(--r-lg);
  border: 1px solid var(--color-border);
  transition: all var(--t-base);
}
.svc-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-soft);
}
.svc-card .ic {
  width: 52px;
  height: 52px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.svc-card h4 {
  font-size: 18px;
  margin-bottom: 12px;
}
.svc-card p {
  font-size: 14px;
  color: var(--color-text-2);
  line-height: 1.7;
}

/* 服务流程 */
.flow {
  background: linear-gradient(135deg, var(--color-primary) 0%, #4f8cff 100%);
  color: #fff;
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}
.flow::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.12) 0%, transparent 30%),
    radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.08) 0%, transparent 30%);
}
.flow .section-title h2,
.flow .section-title .eyebrow { color: #fff; }
.flow .section-title .eyebrow { color: rgba(255, 255, 255, 0.7); }
.flow .section-title p { color: rgba(255, 255, 255, 0.85); }
.flow-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.flow-step {
  position: relative;
  text-align: center;
  padding: 32px 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--r-lg);
  backdrop-filter: blur(8px);
  transition: all var(--t-base);
}
.flow-step:hover {
  background: rgba(255, 255, 255, 0.16);
  transform: translateY(-4px);
}
.flow-step .step-num {
  display: inline-block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 12px;
  font-weight: 600;
  letter-spacing: 1px;
}
.flow-step .step-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.flow-step h4 {
  font-size: 18px;
  color: #fff;
  margin-bottom: 8px;
}
.flow-step p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.6;
}
.flow-arrow {
  position: absolute;
  top: 50%;
  right: -16px;
  color: rgba(255, 255, 255, 0.3);
  transform: translateY(-50%);
  z-index: 2;
}
.flow-step:last-child .flow-arrow { display: none; }

/* ==========================================================================
   案例展示
   ========================================================================== */
.cases-page { padding: 80px 0; }
.case-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 48px;
}
.case-filter {
  padding: 10px 24px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 15px;
  color: var(--color-text-2);
  cursor: pointer;
  transition: all var(--t-fast);
}
.case-filter.active,
.case-filter:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.case-full-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-bottom: 80px;
}
.case-full {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: all var(--t-base);
}
.case-full:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.case-full-head {
  height: 240px;
  background: linear-gradient(135deg, #eaf2ff 0%, #d6e6ff 100%);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.case-full-head::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(15, 23, 42, 0.5) 100%);
}
.case-full-head .brand-name {
  position: relative;
  z-index: 2;
  font-size: 56px;
  font-weight: 800;
  color: var(--color-primary);
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  text-shadow: 0 2px 8px rgba(255, 255, 255, 0.5);
}
.case-full-head .tag {
  position: absolute;
  top: 20px;
  left: 20px;
  padding: 4px 14px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-primary);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  z-index: 2;
}
.case-full-body { padding: 32px; }
.case-full-body h3 {
  font-size: 22px;
  margin-bottom: 8px;
}
.case-full-body .sub {
  font-size: 14px;
  color: var(--color-text-3);
  margin-bottom: 24px;
}
.case-block { margin-bottom: 20px; }
.case-block .label {
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.case-block .label::before {
  content: '';
  width: 3px;
  height: 14px;
  background: var(--color-primary);
  border-radius: 2px;
}
.case-block p {
  font-size: 15px;
  color: var(--color-text-2);
  line-height: 1.8;
}
.case-block ol {
  padding-left: 20px;
  list-style: decimal;
}
.case-block ol li {
  font-size: 15px;
  color: var(--color-text-2);
  line-height: 1.8;
  margin-bottom: 6px;
}
.case-metrics-full {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 24px;
  background: var(--color-primary-tint);
  border-radius: var(--r-md);
  margin-top: 20px;
}
.case-metrics-full .m { text-align: center; }
.case-metrics-full .m .v {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  font-family: -apple-system, "Helvetica Neue", sans-serif;
}
.case-metrics-full .m .l {
  font-size: 13px;
  color: var(--color-text-2);
  margin-top: 6px;
}
.case-qr {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
  padding: 16px;
  background: #fff;
  border: 1px dashed var(--color-border);
  border-radius: var(--r-md);
}
.case-qr img {
  width: 100px;
  height: 100px;
  border-radius: var(--r-sm);
  object-fit: contain;
  background: #fff;
  flex-shrink: 0;
}
.case-qr span {
  font-size: 14px;
  color: var(--color-text-2);
}

/* ==========================================================================
   新闻资讯
   ========================================================================== */
.news-page { padding: 80px 0; }
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: all var(--t-base);
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.news-thumb {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #eaf2ff 0%, #d6e6ff 100%);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 28px;
  font-weight: 700;
}
.news-body { padding: 24px; }
.news-body .meta {
  display: flex;
  gap: 12px;
  font-size: 13px;
  color: var(--color-text-3);
  margin-bottom: 12px;
}
.news-body h3 {
  font-size: 17px;
  margin-bottom: 12px;
  line-height: 1.5;
}
.news-body p {
  font-size: 14px;
  color: var(--color-text-2);
  line-height: 1.7;
}

/* 空状态 */
.empty {
  text-align: center;
  padding: 120px 24px;
}
.empty .ic {
  width: 120px;
  height: 120px;
  margin: 0 auto 24px;
  background: var(--color-primary-tint);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}
.empty h3 {
  font-size: 22px;
  margin-bottom: 12px;
}
.empty p {
  color: var(--color-text-2);
  font-size: 15px;
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ==========================================================================
   联系我们
   ========================================================================== */
.contact-page { padding: 80px 0; }
.contact-info-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 64px;
}
.ci-card {
  text-align: center;
  padding: 32px 20px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  transition: all var(--t-base);
}
.ci-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}
.ci-card .ic {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ci-card .label {
  font-size: 14px;
  color: var(--color-text-2);
  margin-bottom: 8px;
}
.ci-card .value {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
}
.ci-card.qr {
  text-align: center;
}
.ci-card.qr img {
  width: 120px;
  height: 120px;
  margin: 0 auto 12px;
  display: block;
  border-radius: var(--r-sm);
}

.contact-form-section {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 64px;
  align-items: start;
}
.form-aside {
  padding: 40px;
  background: linear-gradient(135deg, var(--color-primary) 0%, #4f8cff 100%);
  color: #fff;
  border-radius: var(--r-lg);
  position: relative;
  overflow: hidden;
}
.form-aside::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 40%);
}
.form-aside > * { position: relative; }
.form-aside h3 {
  font-size: 24px;
  color: #fff;
  margin-bottom: 16px;
}
.form-aside p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 24px;
}
.form-aside ul li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 10px;
}
.form-aside ul li::before {
  content: '✓';
  width: 18px;
  height: 18px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
}

.lead-form {
  background: #fff;
  padding: 40px;
  border-radius: var(--r-lg);
  border: 1px solid var(--color-border);
}
.lead-form h3 {
  font-size: 22px;
  margin-bottom: 8px;
}
.lead-form .sub {
  font-size: 14px;
  color: var(--color-text-2);
  margin-bottom: 32px;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-row { margin-bottom: 16px; }
.form-row.full { grid-column: 1 / -1; }
.form-row label {
  display: block;
  font-size: 14px;
  color: var(--color-text-2);
  margin-bottom: 6px;
}
.form-row label .req { color: #ef4444; }
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 12px 14px;
  font-size: 15px;
  color: var(--color-text);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--r-md);
  transition: all var(--t-fast);
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30, 111, 255, 0.12);
}
.form-row textarea {
  resize: vertical;
  min-height: 100px;
  font-family: inherit;
}
.form-row .submit-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  flex-wrap: wrap;
  gap: 12px;
}
.form-row .submit-row .tip {
  font-size: 13px;
  color: var(--color-text-3);
}
.form-row .submit-row .btn { min-width: 160px; }

/* 成功提示 */
.toast {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  background: #fff;
  padding: 40px;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  text-align: center;
  z-index: 9999;
  max-width: 420px;
  width: 90%;
  opacity: 0;
  pointer-events: none;
  transition: all var(--t-base);
}
.toast.show {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
  pointer-events: auto;
}
.toast .ic {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--color-accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.toast h3 {
  font-size: 22px;
  margin-bottom: 12px;
}
.toast p {
  color: var(--color-text-2);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 24px;
}
.toast .phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--color-primary-tint);
  color: var(--color-primary);
  border-radius: 100px;
  font-weight: 600;
  margin-bottom: 16px;
}

/* 地图 */
.map-block {
  margin-top: 64px;
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.map-block iframe {
  width: 100%;
  height: 400px;
  border: 0;
  display: block;
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1024px) {
  :root {
    --fs-h1: 40px;
    --fs-h2: 32px;
    --fs-h3: 24px;
  }
  .container { padding: 0 20px; }
  .hero { padding: 140px 0 60px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { height: 380px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 16px; }
  .stat-item .num { font-size: 36px; }
  .features-grid,
  .business-grid,
  .philosophy-grid,
  .empower-grid,
  .honors-row { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .logo-grid { grid-template-columns: repeat(4, 1fr); }
  .about-grid,
  .intro-grid,
  .contact-form-section { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-arrow { display: none; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .case-full-grid { grid-template-columns: 1fr; }
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-info-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: 1fr; }
  .nav-list { display: none; }
  .header-cta .btn { display: none; }
  .menu-toggle { display: flex; }
  .header-phone { display: none; }
  .section { padding: 60px 0; }
  .section-title { margin-bottom: 40px; }
  .page-header { padding: 120px 0 60px; }
}

@media (max-width: 640px) {
  :root {
    --fs-h1: 32px;
    --fs-h2: 26px;
    --fs-h3: 22px;
  }
  .container { padding: 0 16px; }
  .brand-logo-img { height: 28px; }
  .brand-text .slogan { display: none; }
  .footer-brand .brand-logo-img { height: 36px; }
  .hero { padding: 120px 0 40px; }
  .hero-text h1 { font-size: 30px; }
  .hero-text p.lead { font-size: 15px; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-meta { gap: 20px; }
  .hero-meta .item .num { font-size: 26px; }
  .hero-visual { height: 320px; }
  .hero-card-1 { width: 240px; }
  .hero-card-2 { width: 220px; }
  .hero-card-3 { width: 200px; }
  .stats { padding: 40px 0; }
  .stat-item .num { font-size: 30px; }
  .stat-item .num .unit { font-size: 18px; }
  .features-grid,
  .business-grid,
  .philosophy-grid,
  .empower-grid,
  .honors-row,
  .cases-grid,
  .footer-grid,
  .news-grid,
  .svc-grid,
  .contact-info-grid,
  .form-grid,
  .stats-grid { grid-template-columns: 1fr; }
  .logo-grid { grid-template-columns: repeat(2, 1fr); }
  .about-mv { grid-template-columns: 1fr; }
  .case-metrics-full { grid-template-columns: 1fr; }
  .case-metrics-full .m { padding: 12px 0; border-bottom: 1px solid rgba(30, 111, 255, 0.1); }
  .case-metrics-full .m:last-child { border-bottom: 0; }
  .case-full-body { padding: 24px; }
  .case-full-head { height: 180px; }
  .case-full-head .brand-name { font-size: 36px; }
  .flow-grid { grid-template-columns: 1fr; }
  .lead-form,
  .form-aside { padding: 24px; }
  .contact-methods { flex-direction: column; }
  .contact-method { width: 100%; }
  .contact-cta h2 { font-size: 26px; }
  .contact-cta p { font-size: 15px; }
  .tl-item { grid-template-columns: 1fr; gap: 16px; }
  .tl-item .left, .tl-item .right { order: 2; }
  .tl-item .dot { order: 1; margin: 0 auto; }
  .tl-item .card::after { display: none; }
  .timeline-list::before { display: none; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .section { padding: 50px 0; }
  .page-header { padding: 110px 0 50px; }
  .page-header h1 { font-size: 28px; }
  .team-card { flex-direction: column; padding: 24px; }
  .team-photo { width: 100%; height: 220px; }
  .biz-card { padding: 32px 24px; }
  .biz-card .num-tag { font-size: 48px; }
  .form-row .submit-row { flex-direction: column; align-items: stretch; }
  .form-row .submit-row .btn { width: 100%; }
}