/* ============================================================
   聂氏锁业 官方网站 - 全站样式表
   主色：#d32f2f (红)  辅色：#1976d2 (蓝)  #2e7d32 (绿)
   ============================================================ */

/* ---------- 0. CSS Reset ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-primary: #d32f2f;
  --color-primary-dark: #b71c1c;
  --color-primary-light: #ef5350;
  --color-secondary: #1976d2;
  --color-success: #2e7d32;
  --color-warning: #f57c00;
  --color-purple: #8e24aa;
  --color-bg: #ffffff;
  --color-bg-soft: #fafafa;
  --color-bg-section: #f5f6fa;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-text-muted: #999999;
  --color-border: #e5e7eb;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(211, 47, 47, 0.15);
  --shadow-hover: 0 12px 32px rgba(211, 47, 47, 0.22);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
  --header-height: 78px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial,
    sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--color-primary);
}

ul,
ol {
  list-style: none;
}

button,
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  border: none;
  background: transparent;
}

button {
  cursor: pointer;
}

/* ---------- 1. 通用容器 ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 72px 0;
}

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

.section-title {
  text-align: center;
  margin-bottom: 52px;
}

.section-title .en-title {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 3px;
  color: var(--color-primary);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 10px;
  padding: 4px 14px;
  background-color: rgba(211, 47, 47, 0.08);
  border-radius: 20px;
}

.section-title h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: "";
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  border-radius: 2px;
}

.section-title p {
  margin-top: 20px;
  font-size: 15px;
  color: var(--color-text-light);
}

/* ---------- 2. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 50px;
  transition: var(--transition);
  white-space: nowrap;
  border: 2px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  box-shadow: 0 6px 18px rgba(211, 47, 47, 0.32);
}

.btn-primary:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(211, 47, 47, 0.42);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.8);
}

.btn-outline:hover {
  background: #fff;
  color: var(--color-primary);
  transform: translateY(-2px);
}

.btn-ghost {
  background: #fff;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-ghost:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 17px;
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-tel {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  border-radius: 50px;
  font-weight: 700;
  font-size: 16px;
  box-shadow: 0 4px 14px rgba(211, 47, 47, 0.3);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 4px 14px rgba(211, 47, 47, 0.3);
  }
  50% {
    box-shadow: 0 4px 22px rgba(211, 47, 47, 0.55);
  }
}

.btn-tel:hover {
  color: #fff;
  transform: translateY(-2px) scale(1.02);
}

/* ---------- 3. 顶部栏（联系信息） ---------- */
.top-bar {
  background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary));
  color: rgba(255, 255, 255, 0.95);
  font-size: 13px;
  padding: 8px 0;
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.top-bar-info {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.top-bar-info span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.top-bar-info a {
  color: #fff;
}

.top-bar-info a:hover {
  text-decoration: underline;
  opacity: 0.9;
  color: #ffe082;
}

/* ---------- 4. 主导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: 12px;
  color: #fff;
  font-size: 26px;
  box-shadow: 0 4px 12px rgba(211, 47, 47, 0.25);
}

.logo-text h1 {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.2;
}

.logo-text h1 span {
  color: var(--color-primary);
}

.logo-text p {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 2px;
  letter-spacing: 1px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;      /* 防止被 header 其他元素挤压到 0 宽 */
  flex-wrap: nowrap;
}

.main-nav a {
  display: inline-flex;
  flex-direction: row;      /* 【强制】图标左 / 文字右 横向排列 */
  flex-wrap: nowrap;        /* 【强制】绝对不换行堆叠 */
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 14px;       /* 18→14 省横向空间 */
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  border-radius: 8px;
  white-space: nowrap;      /* 【强制】文字本身也不折行 */
  min-width: 0;
  position: relative;
  transition: var(--transition);
}

.main-nav a:hover {
  color: var(--color-primary);
  background-color: rgba(211, 47, 47, 0.06);
}

.main-nav a.active {
  color: var(--color-primary);
  background-color: rgba(211, 47, 47, 0.1);
  font-weight: 600;
}

.main-nav a.active::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 2px;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.header-phone {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.3;
}

.header-phone .label {
  font-size: 12px;
  color: var(--color-text-muted);
}

.header-phone .num {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 1px;
}

/* 汉堡菜单（移动端）——PC 端强制隐藏 */
.nav-toggle {
  display: none !important;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: 8px;
  background-color: rgba(211, 47, 47, 0.06);
  transition: var(--transition);
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- 5. Hero Banner 轮播 ---------- */
.hero {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.hero-slider {
  position: relative;
  height: 560px;
  overflow: hidden;
}

.hero-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  opacity: 0;
  transition: opacity 0.8s ease-in-out;
  background-size: cover;
  background-position: center;
}

.hero-slide.active {
  opacity: 1;
  z-index: 1;
}

.hero-slide::before {
  content: "";
  position: absolute;
  inset: 0;
  background: inherit;
  filter: brightness(0.9);
}

.hero-slide .container {
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 680px;
  color: #fff;
  animation: slideUp 0.8s ease-out 0.3s both;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-tag {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(6px);
  border-radius: 50px;
  font-size: 13px;
  margin-bottom: 20px;
  letter-spacing: 1px;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-content h2 {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 18px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
}

.hero-content p {
  font-size: 18px;
  margin-bottom: 32px;
  opacity: 0.95;
  line-height: 1.6;
}

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

.hero-controls {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.hero-dot {
  width: 36px;
  height: 4px;
  background-color: rgba(255, 255, 255, 0.4);
  border-radius: 2px;
  cursor: pointer;
  transition: var(--transition);
}

.hero-dot.active {
  background-color: #fff;
  width: 52px;
}

.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 22px;
  z-index: 10;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-arrow:hover {
  background: var(--color-primary);
  transform: translateY(-50%) scale(1.1);
}

.hero-arrow.prev {
  left: 20px;
}

.hero-arrow.next {
  right: 20px;
}

/* 首页电话卡片（浮于 Hero 下方） */
.hero-contact-bar {
  background: #fff;
  box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.08);
  border-radius: 20px 20px 0 0;
  padding: 28px 0;
  margin-top: -50px;
  position: relative;
  z-index: 20;
}

.hero-contact-bar .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  align-items: center;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.contact-card:hover {
  background-color: var(--color-bg-section);
  transform: translateY(-2px);
}

.contact-card-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  font-size: 24px;
  flex-shrink: 0;
  box-shadow: 0 6px 16px rgba(211, 47, 47, 0.2);
}

.contact-card-body .label {
  font-size: 13px;
  color: var(--color-text-muted);
}

.contact-card-body .value {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
}

.contact-card-body .value.red {
  color: var(--color-primary);
  font-size: 20px;
}

/* ---------- 6. 信任徽章 ---------- */
.badges-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.badge-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--color-border);
}

.badge-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
}

.badge-card .icon {
  font-size: 44px;
  margin-bottom: 14px;
  display: inline-block;
  transition: var(--transition);
}

.badge-card:hover .icon {
  transform: scale(1.12) rotate(-4deg);
}

.badge-card h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-text);
}

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

/* ---------- 7. 服务项目 ---------- */
.services-tab-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}

.services-tab {
  padding: 10px 24px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  background-color: #fff;
  color: var(--color-text-light);
  border: 2px solid var(--color-border);
  cursor: pointer;
  transition: var(--transition);
}

.services-tab:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary);
}

.services-tab.active {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(211, 47, 47, 0.28);
}

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

.service-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
}

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

.service-card-head {
  padding: 28px 28px 16px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.service-card-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: #fff;
  transition: var(--transition);
}

.service-card:hover .service-card-icon {
  transform: scale(1.08) rotate(6deg);
}

.service-price-tag {
  padding: 6px 12px;
  background: rgba(211, 47, 47, 0.08);
  color: var(--color-primary);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.service-card-body {
  padding: 0 28px 22px;
  flex: 1;
}

.service-card-body h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text);
}

.service-card-body p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}

.service-card-body ul {
  margin-bottom: 16px;
}

.service-card-body ul li {
  font-size: 13px;
  color: var(--color-text-light);
  padding: 4px 0 4px 18px;
  position: relative;
}

.service-card-body ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 700;
}

.service-card-foot {
  padding: 16px 28px 24px;
  display: flex;
  gap: 10px;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg-soft);
}

.service-card-foot .btn {
  flex: 1;
  padding: 10px 16px;
  font-size: 14px;
}

/* ---------- 8. 关于我们 Section ---------- */
.about-wrap {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}

.about-text h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.3;
}

.about-text h2 span {
  color: var(--color-primary);
}

.about-text .lead {
  font-size: 16px;
  color: var(--color-text-light);
  margin-bottom: 24px;
  line-height: 1.8;
}

.about-text p {
  color: var(--color-text-light);
  margin-bottom: 14px;
  line-height: 1.8;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
}

.stat-item {
  text-align: center;
}

.stat-num {
  font-size: 30px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 13px;
  color: var(--color-text-muted);
}

.about-visual {
  position: relative;
  min-height: 440px;
}

.about-visual-card {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: 24px;
  padding: 36px;
  color: #fff;
  box-shadow: 0 20px 50px rgba(211, 47, 47, 0.25);
}

.about-visual-card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.honor-list li {
  padding: 10px 0 10px 32px;
  position: relative;
  font-size: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.honor-list li::before {
  content: "🏅";
  position: absolute;
  left: 0;
  top: 10px;
}

.honor-list li:last-child {
  border-bottom: none;
}

.about-visual-card-small {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: #fff;
  padding: 22px 26px;
  border-radius: 18px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 16px;
}

.about-visual-card-small .icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #fff3e0, #ffe0b2);
  color: var(--color-warning);
  border-radius: 14px;
  font-size: 28px;
}

.about-visual-card-small .text .big {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-primary);
  display: block;
}

.about-visual-card-small .text .small {
  font-size: 12px;
  color: var(--color-text-muted);
}

/* ---------- 9. 服务流程 ---------- */
.process-wrap {
  position: relative;
  padding: 40px 0 20px;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.process-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: var(--transition);
  position: relative;
}

.process-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
}

.process-num {
  width: 48px;
  height: 48px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  border-radius: 50%;
  box-shadow: 0 6px 14px rgba(211, 47, 47, 0.28);
}

.process-icon {
  font-size: 44px;
  margin-bottom: 14px;
  display: inline-block;
}

.process-card h4 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text);
}

.process-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* 连接线（桌面端） */
.process-grid::before {
  content: "";
  position: absolute;
  top: 58px;
  left: calc(12.5% + 12px);
  right: calc(12.5% + 12px);
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    var(--color-primary-light) 0 6px,
    transparent 6px 12px
  );
  z-index: 0;
  opacity: 0.4;
}

.process-card {
  position: relative;
  z-index: 1;
}

/* ---------- 10. CTA 电话横幅 ---------- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #fff;
  padding: 56px 0;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1), transparent 70%);
  border-radius: 50%;
}

.cta-banner .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 30px;
  position: relative;
  z-index: 1;
}

.cta-text h3 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 8px;
}

.cta-text p {
  font-size: 16px;
  opacity: 0.9;
}

.cta-phone {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.cta-phone-num {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.cta-phone-num .label {
  font-size: 13px;
  opacity: 0.85;
}

.cta-phone-num .num {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: 2px;
  margin-top: 4px;
}

/* ---------- 11. 新闻资讯 ---------- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.news-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
}

.news-card-cover {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 56px;
  position: relative;
  overflow: hidden;
}

.news-card-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0, 0, 0, 0.4));
}

.news-category-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 4px 12px;
  background: rgba(211, 47, 47, 0.95);
  color: #fff;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
  z-index: 2;
}

.news-card-body {
  padding: 22px 24px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.news-date {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.news-card-body h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 10px;
  color: var(--color-text);
  transition: var(--transition);
}

.news-card:hover h3 {
  color: var(--color-primary);
}

.news-card-body p {
  font-size: 13.5px;
  color: var(--color-text-light);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 16px;
}

.news-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-primary);
}

.news-more:hover {
  gap: 10px;
}

.news-all-btn {
  text-align: center;
  margin-top: 44px;
}

/* ---------- 12. 联系我们 / 表单 ---------- */
.contact-wrap {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
}

.contact-info-card {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  border-radius: 24px;
  padding: 40px;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.contact-info-card::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 260px;
  height: 260px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
}

.contact-info-card h3 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}

.contact-info-card > p {
  font-size: 14px;
  opacity: 0.9;
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}

.contact-info-list {
  position: relative;
  z-index: 1;
}

.contact-info-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.contact-info-list li:last-child {
  border-bottom: none;
}

.contact-info-list .icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-info-list .info .label {
  font-size: 12px;
  opacity: 0.8;
  margin-bottom: 4px;
}

.contact-info-list .info .value {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
}

.contact-info-list .info .value.big {
  font-size: 22px;
  letter-spacing: 1px;
}

.contact-form-card {
  background: #fff;
  border-radius: 24px;
  padding: 40px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.contact-form-card h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.contact-form-card > p {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 18px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.form-group label .req {
  color: var(--color-primary);
  margin-left: 2px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  color: var(--color-text);
  background-color: #fafbfc;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  background-color: #fff;
  box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 110px;
}

.form-submit-note {
  margin-top: 12px;
  font-size: 12.5px;
  color: var(--color-text-muted);
  text-align: center;
}

/* ---------- 13. 面包屑（内页用） ---------- */
.page-banner {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #fff;
  padding: 72px 0 90px;
  position: relative;
  overflow: hidden;
}

.page-banner::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.12), transparent 70%);
  border-radius: 50%;
}

.page-banner-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.page-banner-content h1 {
  font-size: 38px;
  font-weight: 800;
  margin-bottom: 12px;
}

.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  opacity: 0.92;
}

.breadcrumb a:hover {
  text-decoration: underline;
  color: #fff;
}

.page-content {
  padding: 56px 0 72px;
}

/* ---------- 14. 侧栏（内页用） ---------- */
.page-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 36px;
}

.main-content {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.side-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.side-card h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-primary);
  display: inline-block;
}

.side-nav li a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14.5px;
  transition: var(--transition);
}

.side-nav li a:hover,
.side-nav li a.active {
  background-color: rgba(211, 47, 47, 0.08);
  color: var(--color-primary);
  font-weight: 600;
}

.side-hot-phone {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.side-hot-phone .icon {
  font-size: 34px;
  margin-bottom: 8px;
}

.side-hot-phone .title {
  font-size: 14px;
  opacity: 0.92;
  margin-bottom: 10px;
}

.side-hot-phone .num {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 14px;
}

.side-news-list li {
  padding: 12px 0;
  border-bottom: 1px dashed var(--color-border);
}

.side-news-list li:last-child {
  border-bottom: none;
}

.side-news-list a {
  display: block;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: var(--transition);
}

.side-news-list a:hover {
  color: var(--color-primary);
  padding-left: 6px;
}

.side-news-list .date {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* ---------- 15. 新闻详情内容 ---------- */
.article h1 {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 16px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  padding: 14px 0 20px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 26px;
  color: var(--color-text-muted);
  font-size: 13.5px;
}

.article-body p {
  margin-bottom: 16px;
  line-height: 1.9;
  font-size: 15.5px;
  color: #444;
}

.article-body h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 28px 0 14px;
  color: var(--color-text);
  padding-left: 12px;
  border-left: 4px solid var(--color-primary);
}

.article-body ul,
.article-body ol {
  margin-bottom: 16px;
  padding-left: 20px;
}

.article-body ul li {
  list-style: disc;
  margin-bottom: 8px;
  line-height: 1.8;
  color: #444;
}

.article-body ol li {
  list-style: decimal;
  margin-bottom: 8px;
  line-height: 1.8;
  color: #444;
}

/* ---------- 16. 友情链接 ---------- */
.friend-links {
  background-color: var(--color-bg-section);
  padding: 28px 0;
  border-top: 1px solid var(--color-border);
}

.friend-links-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}

.friend-links-inner strong {
  color: var(--color-text);
  margin-right: 6px;
  flex-shrink: 0;
}

.friend-links-inner a {
  padding: 4px 10px;
  color: var(--color-text-light);
  border-radius: 4px;
  transition: var(--transition);
}

.friend-links-inner a:hover {
  background-color: var(--color-primary);
  color: #fff;
}

/* ---------- 17. 页脚 ---------- */
.site-footer {
  background-color: #1a1a1a;
  color: #bbbbbb;
  padding: 56px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-col h4 {
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 22px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 2px;
}

.footer-about .logo {
  margin-bottom: 18px;
}

.footer-about .logo-text h1 {
  color: #fff;
}

.footer-about .desc {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-contact-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 13.5px;
}

.footer-contact-list .icon {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  font-size: 14px;
  flex-shrink: 0;
}

.footer-contact-list .value.red {
  color: var(--color-primary-light);
  font-weight: 700;
  font-size: 16px;
}

.footer-links li {
  padding: 7px 0;
  font-size: 14px;
}

.footer-links li a {
  color: #bbbbbb;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.footer-links li a::before {
  content: "›";
  color: var(--color-primary);
  font-weight: 700;
  transition: var(--transition);
}

.footer-links li a:hover {
  color: #fff;
  padding-left: 6px;
}

.footer-services-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-services-list li {
  padding: 6px 0;
  font-size: 13.5px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-services-list li::before {
  content: "•";
  color: var(--color-primary);
  font-size: 16px;
}

.footer-bottom {
  background-color: #111111;
  padding: 20px 0;
  border-top: 1px solid #2a2a2a;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: #888;
}

.footer-bottom-inner a {
  color: #888;
}

.footer-bottom-inner a:hover {
  color: #fff;
}

/* ---------- 18. 浮动电话按钮（移动端） ---------- */
.floating-actions {
  position: fixed;
  right: 16px;
  bottom: 20px;
  z-index: 90;
  display: none;
  flex-direction: column;
  gap: 10px;
}

.float-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #fff;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  transition: var(--transition);
  position: relative;
}

.float-btn.tel {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  animation: floatPulse 2s infinite;
}

.float-btn.wechat {
  background: linear-gradient(135deg, #4caf50, #2e7d32);
}

.float-btn.top {
  background: linear-gradient(135deg, #1976d2, #0d47a1);
}

@keyframes floatPulse {
  0%, 100% {
    box-shadow: 0 6px 20px rgba(211, 47, 47, 0.35);
  }
  50% {
    box-shadow: 0 6px 28px rgba(211, 47, 47, 0.6);
  }
}

/* ---------- 19. 响应式 - 平板 ---------- */
@media (max-width: 992px) {
  .section {
    padding: 56px 0;
  }

  .hero-slider {
    height: 460px;
  }

  .hero-content h2 {
    font-size: 34px;
  }

  .hero-content p {
    font-size: 16px;
  }

  .hero-contact-bar .container {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .badges-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .news-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .about-wrap {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .about-visual {
    min-height: auto;
  }

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .process-grid::before {
    display: none;
  }

  .contact-wrap {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .page-with-sidebar {
    grid-template-columns: 1fr;
  }
}

/* ---------- 19.bis 响应式 — 中等屏（≤1200px）：收窄头部、缩小电话块 ----------
 * 解决：用户把 PC 浏览器窗口稍微拉窄，导航 + Logo + 电话 + 拨打按钮 横向塞不下。
 * 策略：先缩小电话块，给导航留够空间（超过 1000px 还是尽量显示完整水平导航）
 * ------------------------------------------------------------------- */
@media (max-width: 1200px) {
  .header-phone {
    display: none;            /* 隐藏"24小时服务热线 + 电话号码"两行，节省 ~220px */
  }
  .header-cta {
    gap: 10px;
  }
  .logo-text h1 {
    font-size: 20px;
  }
  .logo-icon {
    width: 42px;
    height: 42px;
    font-size: 22px;
  }
  .btn-tel {
    padding: 9px 18px;
    font-size: 15px;
  }
  .main-nav a {
    padding: 9px 12px;
    font-size: 14.5px;
  }
}

/* ---------- 19.ter 响应式 — 汉堡切换阈值（≤991px）：
 * 进入"移动导航模式"——水平导航隐藏，显示汉堡按钮。
 * （之前放在 768px 太激进，800-991px 的小窗/笔记本会挤爆导航）
 * ------------------------------------------------------------------- */
@media (max-width: 991px) {
  .top-bar {
    display: none;
  }
  :root {
    --header-height: 68px;
  }
  .header-inner {
    height: var(--header-height);
  }
  .logo-text p {
    display: none;
  }
  .logo-icon {
    width: 40px;
    height: 40px;
    font-size: 22px;
    border-radius: 10px;
  }
  .logo-text h1 {
    font-size: 19px;
  }
  /* 导航隐藏到屏幕外（抽屉） */
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    max-height: calc(100vh - var(--header-height) - 100px);
    overflow-y: auto;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 16px 20px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    transform: translateY(-120%);
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
    z-index: 97;
    -webkit-overflow-scrolling: touch;
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .main-nav a {
    padding: 14px 16px;
    border-radius: 8px;
    justify-content: flex-start;
    font-size: 16px;
  }
  .main-nav a.active::after {
    display: none;
  }
  /* 显示汉堡按钮 */
  .nav-toggle {
    display: flex !important;
  }
  /* Hero 缩小 */
  .hero-slider {
    height: 440px;
  }
  .hero-content h2 {
    font-size: 28px;
  }
}

/* ---------- 20. 响应式 - 手机 ---------- */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .section {
    padding: 44px 0;
  }

  .section-title {
    margin-bottom: 36px;
  }

  .section-title h2 {
    font-size: 24px;
  }

  .top-bar {
    display: none;
  }

  .header-inner {
    height: var(--header-height);
  }

  .logo-icon {
    width: 40px;
    height: 40px;
    font-size: 22px;
    border-radius: 10px;
  }

  .logo-text h1 {
    font-size: 18px;
  }

  .logo-text p {
    display: none;
  }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 16px 20px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    transform: translateY(-120%);
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav a {
    padding: 14px 16px;
    border-radius: 8px;
    justify-content: flex-start;
  }

  .main-nav a.active::after {
    display: none;
  }

  .header-phone {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-slider {
    height: 420px;
  }

  .hero-content h2 {
    font-size: 26px;
  }

  .hero-content p {
    font-size: 15px;
    margin-bottom: 24px;
  }

  .hero-arrow {
    display: none;
  }

  .hero-contact-bar {
    padding: 20px 0;
    margin-top: -30px;
    border-radius: 16px 16px 0 0;
  }

  .hero-contact-bar .container {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding: 0 12px;
  }

  .contact-card {
    padding: 8px;
    gap: 10px;
  }

  .contact-card-icon {
    width: 42px;
    height: 42px;
    font-size: 20px;
    border-radius: 10px;
  }

  .contact-card-body .label {
    font-size: 11px;
  }

  .contact-card-body .value {
    font-size: 14px;
  }

  .contact-card-body .value.red {
    font-size: 16px;
  }

  .badges-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .badge-card {
    padding: 20px 14px;
  }

  .badge-card .icon {
    font-size: 36px;
  }

  .badge-card h4 {
    font-size: 16px;
  }

  .badge-card p {
    font-size: 12px;
  }

  .services-tab-bar {
    gap: 8px;
    margin-bottom: 28px;
  }

  .services-tab {
    padding: 8px 16px;
    font-size: 13px;
  }

  .services-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .service-card-head {
    padding: 22px 22px 12px;
  }

  .service-card-body {
    padding: 0 22px 18px;
  }

  .service-card-foot {
    padding: 14px 22px 20px;
  }

  .news-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .news-card-cover {
    height: 150px;
  }

  .process-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .process-card {
    padding: 24px 18px;
  }

  .about-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px 24px;
  }

  .stat-num {
    font-size: 24px;
  }

  .about-visual-card {
    padding: 26px;
  }

  .about-visual-card-small {
    position: static;
    margin-top: 20px;
  }

  .cta-banner {
    padding: 40px 0;
  }

  .cta-banner .container {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }

  .cta-text h3 {
    font-size: 22px;
  }

  .cta-phone-num .num {
    font-size: 28px;
  }

  .contact-info-card {
    padding: 28px 24px;
  }

  .contact-form-card {
    padding: 28px 24px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 28px;
  }

  .page-banner {
    padding: 52px 0 68px;
  }

  .page-banner-content h1 {
    font-size: 28px;
  }

  .main-content {
    padding: 24px 20px;
  }

  .article h1 {
    font-size: 22px;
  }

  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
    line-height: 1.8;
  }

  .floating-actions {
    display: flex;
  }
}

@media (max-width: 480px) {
  .hero-contact-bar .container {
    grid-template-columns: 1fr;
  }

  .hero-content h2 {
    font-size: 22px;
  }

  .btn-primary,
  .btn-outline {
    padding: 10px 22px;
    font-size: 14px;
  }

  .btn-lg {
    padding: 14px 28px;
    font-size: 15px;
  }
}

/* ---------- 21. 工具类 ---------- */
.text-center {
  text-align: center;
}
.text-primary {
  color: var(--color-primary);
}
.mt-20 {
  margin-top: 20px;
}
.mt-30 {
  margin-top: 30px;
}
.mb-0 {
  margin-bottom: 0;
}

/* 渐入动画 */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   22. H5 移动端专项优化（聂氏锁业官网 · 手机为主）
   ========================================================================== */

/* ---------- 22.1 安全区 · 刘海屏 / 底部 home 指示条 ---------- */
@supports (padding: max(0px)) {
  body {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
  .footer-bottom {
    padding-bottom: max(16px, env(safe-area-inset-bottom));
  }
  .mobile-sticky-cta {
    padding-bottom: calc(12px + env(safe-area-inset-bottom));
  }
  .floating-actions {
    padding-bottom: calc(8px + env(safe-area-inset-bottom));
  }
}

/* ---------- 22.2 抽屉导航遮罩层 + 锁滚动 ---------- */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 95;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.nav-overlay[aria-hidden="false"] {
  opacity: 1;
  pointer-events: auto;
}
body.drawer-open {
  overflow: hidden;
  overscroll-behavior: contain;
}

/* ---------- 22.3 移动端底部固定悬浮拨打条（最核心转化入口） ---------- */
.mobile-sticky-cta {
  display: none; /* 默认 PC 端不显示 */
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 99;
  padding: 10px 8px 12px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 -6px 24px rgba(211, 47, 47, 0.18);
  border-top: 1px solid #ffe8e8;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  gap: 8px;
}

.mobile-sticky-cta .cta {
  flex: 1 1 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: 14px;
  min-height: 54px;
  padding: 8px 10px;
  border: none;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s ease;
  font-family: inherit;
  -webkit-tap-highlight-color: transparent;
}
.mobile-sticky-cta .cta:active {
  transform: scale(0.96);
}
.mobile-sticky-cta .cta .icon {
  font-size: 20px;
  flex-shrink: 0;
}
.mobile-sticky-cta .cta .text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.2;
  min-width: 0;
  flex: 1 1 auto;
}
.mobile-sticky-cta .cta .label {
  font-size: 10px;
  font-weight: 500;
  opacity: 0.9;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}
.mobile-sticky-cta .cta .num {
  font-size: 16px;
  font-weight: 800;
  margin-top: 2px;
  letter-spacing: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* 拨打按钮（左 · 醒目大红 + 脉冲动画） */
.mobile-sticky-cta .cta-call {
  flex: 1.5;
  background: linear-gradient(135deg, #ef5350 0%, #d32f2f 50%, #b71c1c 100%);
  color: #fff;
  box-shadow: 0 6px 18px rgba(211, 47, 47, 0.4);
  position: relative;
  overflow: hidden;
}
.mobile-sticky-cta .cta-call::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.35), transparent 60%);
  animation: cta-shine 2.6s ease-in-out infinite;
  pointer-events: none;
}
@keyframes cta-shine {
  0%, 100% { transform: translateX(-10%); opacity: 0.7; }
  50%      { transform: translateX(10%);  opacity: 1; }
}
.mobile-sticky-cta .cta-call .label { color: #ffe8e8; }
.mobile-sticky-cta .cta-call .num   { color: #ffffff; text-shadow: 0 1px 2px rgba(0,0,0,0.25); }
/* ★ SVG 电话图标：纯黑，无圆底，靠 currentColor 继承 color */
.mobile-sticky-cta .cta-call .icon  {
  color: #000000;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 0;
  background: transparent;
  border-radius: 0;
  box-shadow: none;
}
.mobile-sticky-cta .cta-call .icon .svg-phone {
  width: 26px;
  height: 26px;
  display: block;
  fill: currentColor;
}

/* 微信按钮（右 · 绿色） */
.mobile-sticky-cta .cta-wechat {
  flex: 1;
  background: linear-gradient(135deg, #4caf50 0%, #2e7d32 100%);
  color: #fff;
  box-shadow: 0 6px 18px rgba(46, 125, 50, 0.35);
}
.mobile-sticky-cta .cta-wechat .label { color: #e8f5e9; }
.mobile-sticky-cta .cta-wechat .num   { color: #ffffff; }

/* ---------- 22.4 Toast 提示（复制微信号用） ---------- */
.ns-toast {
  position: fixed;
  top: 30%;
  left: 50%;
  transform: translate(-50%, -20px) scale(0.96);
  z-index: 9999;
  background: rgba(20, 20, 20, 0.9);
  color: #fff;
  padding: 12px 20px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.6;
  max-width: 84vw;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s ease, transform 0.28s cubic-bezier(.2,.9,.3,1.2);
  box-shadow: 0 8px 30px rgba(0,0,0,0.35);
  backdrop-filter: blur(6px);
}
.ns-toast.in {
  opacity: 1;
  transform: translate(-50%, 0) scale(1);
}
.ns-toast.out {
  opacity: 0;
  transform: translate(-50%, -14px) scale(0.97);
}

/* ---------- 22.5 按钮/表单 移动端无障碍（≥ 48px）---------- */
@media (max-width: 768px) {
  .btn-primary,
  .btn-outline,
  .btn-tel,
  .services-tab {
    min-height: 48px;
  }
  .form-input,
  .form-textarea,
  .form-select {
    min-height: 48px;
    font-size: 16px; /* 防止 iOS 聚焦时自动缩放 */
    padding: 12px 16px;
  }
  .form-textarea {
    min-height: 120px;
    padding-top: 14px;
  }
  /* 给底部悬浮条留位置（避免遮页脚） */
  body {
    padding-bottom: 96px;
  }
  /* PC 端浮动圆形按钮（手机屏幕小 不推荐）改为更大 56px，方便按 */
  .floating-actions .float-btn {
    width: 54px;
    height: 54px;
    font-size: 22px;
    border-radius: 50%;
    right: 14px;
  }
  /* hero 再缩小 */
  .hero-slider {
    height: 380px;
  }
  .hero-content h2 {
    font-size: 24px;
  }
  .hero-content p {
    font-size: 14px;
    margin-bottom: 20px;
  }
  /* 服务 Tab 可横向滑动，避免换行 */
  .services-tab-bar {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
    scrollbar-width: none;
  }
  .services-tab-bar::-webkit-scrollbar { display: none; }
  .services-tab {
    flex-shrink: 0;
  }
  /* 卡片字号加大易读 */
  body, p, li {
    font-size: 15px;
  }
  .news-card-body h4 {
    font-size: 17px;
  }
  .service-card-head h3 {
    font-size: 19px;
  }
  .contact-card-body .value.red {
    font-size: 18px;
  }
  .page-banner-content h1 {
    font-size: 26px;
  }
}

/* ---------- 22.6 小屏手机（iPhone SE · 360px 宽以下） ---------- */
@media (max-width: 380px) {
  .hero-slider {
    height: 320px;
  }
  .hero-content h2 {
    font-size: 21px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
  .section-title h2 {
    font-size: 22px;
  }
  .cta-phone-num .num {
    font-size: 24px;
  }
  .about-stats {
    grid-template-columns: 1fr 1fr;
  }
  .mobile-sticky-cta .cta .num {
    font-size: 16px;
  }
  .mobile-sticky-cta .cta {
    padding: 8px 10px;
    gap: 8px;
  }
  .contact-info-card,
  .contact-form-card {
    padding: 22px 16px;
  }
}

/* ---------- 22.7 iPhone 横屏 / iPad 中等尺寸 ---------- */
@media (min-width: 769px) and (max-width: 1024px) and (pointer: coarse) {
  /* iPad：也显示底部拨打条，用户触屏设备更容易直接按电话 */
  .mobile-sticky-cta {
    display: flex;
  }
  body {
    padding-bottom: 96px;
  }
}

/* ---------- 22.8 通用：移动端 ≤ 768 启动底部拨打条 ---------- */
@media (max-width: 768px) {
  .mobile-sticky-cta {
    display: flex;
  }
}

/* ---------- 22.8.1 超窄屏（≤380px，320/360 小屏安卓/iPhone SE）压缩拨打条 ---------- */
@media (max-width: 380px) {
  .mobile-sticky-cta {
    padding: 8px 6px calc(10px + env(safe-area-inset-bottom));
    gap: 6px;
  }
  .mobile-sticky-cta .cta {
    min-height: 50px;
    padding: 6px 8px;
    gap: 4px;
    border-radius: 12px;
  }
  .mobile-sticky-cta .cta .icon {
    font-size: 18px;
  }
  .mobile-sticky-cta .cta-call .icon .svg-phone {
    width: 22px;
    height: 22px;
  }
  .mobile-sticky-cta .cta .label {
    font-size: 9px;
  }
  .mobile-sticky-cta .cta .num {
    font-size: 13.5px;
    margin-top: 1px;
    letter-spacing: -0.2px;
  }
  .mobile-sticky-cta .cta-call {
    flex: 1.55;
  }
}

/* ---------- 22.9 防止 iOS 长按时菜单弹出（按钮上）---------- */
.mobile-sticky-cta,
.mobile-sticky-cta *,
.btn-primary,
.btn-outline,
.btn-tel,
.nav-toggle,
.services-tab,
.float-btn {
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}