/**
 * ShieldSec 盾御安全 — 网络安全/信创企业站
 * 深绿(#0D2B1A) + 钢灰 + 白 + 金色点缀
 * 暗色主题，稳重安全，安全技术白皮书风格
 * 纯原生 CSS，无框架依赖
 */

/* ============================================================
   CSS 变量体系
   ============================================================ */
:root {
  /* 基底色 — 深绿暗色系 */
  --bg-deep: #060E09;
  --bg-primary: #0D2B1A;
  --bg-night: #0A1F13;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --bg-input: rgba(255, 255, 255, 0.05);

  /* 点缀色 */
  --accent-gold: #C8A84E;
  --accent-gold-dim: rgba(200, 168, 78, 0.12);
  --accent-gold-glow: rgba(200, 168, 78, 0.2);
  --accent-steel: #7B8A9B;
  --accent-steel-dim: rgba(123, 138, 155, 0.12);
  --accent-green: #2D8A4E;
  --accent-green-dim: rgba(45, 138, 78, 0.12);
  --accent-green-glow: rgba(45, 138, 78, 0.2);
  --accent-cyan: #3BA99C;
  --accent-cyan-dim: rgba(59, 169, 156, 0.12);
  --gradient-gold: linear-gradient(135deg, #C8A84E, #E8D48B, #C8A84E);
  --gradient-green: linear-gradient(135deg, #0D2B1A, #1A5C32, #0D2B1A);

  /* 文字色阶 */
  --text-primary: #E8ECF1;
  --text-secondary: #8B95A5;
  --text-muted: #4A5568;
  --text-inverse: #0A0F14;

  /* 边框 */
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-card: rgba(255, 255, 255, 0.08);
  --border-gold: rgba(200, 168, 78, 0.25);
  --border-active: rgba(200, 168, 78, 0.5);

  /* 阴影 */
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow-gold: 0 0 24px rgba(200, 168, 78, 0.1);
  --shadow-glow-green: 0 0 24px rgba(45, 138, 78, 0.1);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.6);

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;

  /* 间距 */
  --section-py: 88px;
  --container-max: 1240px;
  --header-h: 68px;

  /* 过渡 */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;

  /* 字体 — 现代企业风格 */
  --font-heading: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei UI', 'Noto Sans SC', 'Helvetica Neue', sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei UI', 'Segoe UI', 'Noto Sans SC', 'Helvetica Neue', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
}

/* ============================================================
   全局重置 & 基础
   ============================================================ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg-deep);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 80% 60% at 15% 10%, rgba(45, 138, 78, 0.04) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 85% 20%, rgba(200, 168, 78, 0.03) 0%, transparent 60%),
    radial-gradient(ellipse 70% 50% at 50% 85%, rgba(59, 169, 156, 0.02) 0%, transparent 60%),
    linear-gradient(180deg, #060E09 0%, #0A1F13 40%, #0D2B1A 100%);
  pointer-events: none;
}

::selection {
  background: rgba(200, 168, 78, 0.3);
  color: #fff;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.15); }

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

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

ul, ol { list-style: none; }

input, textarea, select, button {
  font-family: inherit;
  font-size: inherit;
}

input::placeholder, textarea::placeholder {
  color: var(--text-muted);
  opacity: 1;
}

/* ============================================================
   排版
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.02em;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.75rem;
}

.section-tag::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 1px;
  background: var(--accent-gold);
}

.section-title {
  font-size: clamp(1.5rem, 3.5vw, 2.35rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
  letter-spacing: 0.03em;
}

.section-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
}

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

.section {
  padding: var(--section-py) 0;
}

.section--alt {
  background: rgba(10, 31, 19, 0.4);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

/* ============================================================
   Header 头部 — 深色半透固定
   ============================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(6, 14, 9, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.header.scrolled {
  background: rgba(6, 14, 9, 0.97);
  box-shadow: 0 1px 30px rgba(0, 0, 0, 0.5);
  border-bottom-color: var(--border-gold);
}

.header__inner {
  display: flex;
  align-items: center;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  margin-right: 48px;
}

.header__logo-icon {
  width: 38px;
  height: 38px;
  background: var(--gradient-gold);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: #0A0F14;
}

.header__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.header__logo-name {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.header__logo-sub {
  font-size: 0.58rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-gold);
}

/* 主导航 */
.header__nav {
  display: flex;
  align-items: center;
  gap: 1px;
}

.header__nav-link {
  padding: 8px 15px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
  font-weight: 500;
}

.header__nav-link:hover {
  color: var(--accent-gold);
  background: rgba(200, 168, 78, 0.06);
}

.header__nav-link.active {
  color: var(--accent-gold);
  background: rgba(200, 168, 78, 0.08);
}

/* 导航下拉 */
.header__nav-item {
  position: relative;
}

.header__nav-item:hover .header__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.header__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 170px;
  padding: 8px 0;
  background: rgba(10, 20, 14, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--duration-normal) var(--ease-out);
  z-index: 60;
}

.header__dropdown a {
  display: block;
  padding: 10px 20px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: all var(--duration-fast) var(--ease-out);
}

.header__dropdown a:hover {
  color: var(--accent-gold);
  background: rgba(200, 168, 78, 0.06);
}

/* 头部右侧操作区 */
.header__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.header__search-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
  background: rgba(255,255,255,0.02);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: all var(--duration-fast) var(--ease-out);
}

.header__search-btn:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

/* CTA 金色描边按钮 */
.header__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  border: 1px solid var(--accent-gold);
  color: var(--accent-gold);
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  background: transparent;
  transition: all var(--duration-fast) var(--ease-out);
}

.header__cta:hover {
  background: var(--accent-gold);
  color: #0A0F14;
  box-shadow: var(--shadow-glow-gold);
}

/* ============================================================
   汉堡菜单（移动端）— 独立于 header__actions
   ============================================================ */
.hamburger {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 110;
  margin-left: 8px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: all var(--duration-normal) var(--ease-out);
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* 移动端侧滑菜单 */
.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 80%;
  max-width: 360px;
  background: rgba(10, 20, 14, 0.99);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  z-index: 120;
  transform: translateX(-100%);
  transition: transform var(--duration-normal) var(--ease-out);
  overflow-y: auto;
}

.mobile-nav.open { transform: translateX(0); }

.mobile-nav__inner { padding: 24px; padding-top: 80px; }

.mobile-nav__link {
  display: block;
  padding: 14px 16px;
  font-size: 1rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-out);
}

.mobile-nav__link:hover {
  color: var(--accent-gold);
  background: rgba(200,168,78,0.05);
}

.mobile-nav__sub { padding-left: 16px; display: none; }
.mobile-nav__sub.open { display: block; }

.mobile-nav__sub a {
  display: block;
  padding: 10px 16px;
  font-size: 0.88rem;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
}

.mobile-nav__overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 115;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.mobile-nav__overlay.show {
  opacity: 1;
  pointer-events: auto;
}

/* ============================================================
   内页 Banner
   ============================================================ */
.inner-banner {
  position: relative;
  height: 300px;
  overflow: hidden;
  background: var(--bg-primary);
}

.inner-banner__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.inner-banner__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6,14,9,0.75) 0%, rgba(6,14,9,0.5) 50%, var(--bg-deep) 100%);
}

.inner-banner__content {
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.inner-banner__title {
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.4rem;
}

.inner-banner__subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
}

/* 面包屑 */
.breadcrumb-bar {
  background: var(--bg-night);
  border-bottom: 1px solid var(--border-subtle);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 12px 24px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--accent-gold); }
.breadcrumb i { font-size: 0.6rem; color: var(--text-muted); }

/* ============================================================
   按钮系统
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 26px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.btn--primary {
  background: var(--gradient-gold);
  color: #0A0F14;
}

.btn--primary:hover {
  box-shadow: var(--shadow-glow-gold);
  transform: translateY(-2px);
  color: #0A0F14;
}

.btn--outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-card);
}

.btn--outline:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  background: rgba(200, 168, 78, 0.04);
  transform: translateY(-2px);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border-color: var(--border-card);
}

.btn--gold-line {
  background: transparent;
  color: var(--accent-gold);
  border: 1px solid var(--accent-gold);
}

.btn--gold-line:hover {
  background: var(--accent-gold);
  color: #0A0F14;
  box-shadow: var(--shadow-glow-gold);
  transform: translateY(-2px);
}

/* ============================================================
   卡片系统 — 深色 + 金色/钢灰边框
   ============================================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
  display: flex;
  flex-direction: column;
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-gold);
  box-shadow: var(--shadow-card), var(--shadow-glow-gold);
  transform: translateY(-2px);
}

.card__image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
  background: var(--bg-input);
}

.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.card:hover .card__image img { transform: scale(1.04); }

.card__body { padding: 20px; flex: 1; display: flex; flex-direction: column; }

.card__tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent-gold);
  background: var(--accent-gold-dim);
  border-radius: 2px;
  margin-bottom: 8px;
  align-self: flex-start;
  letter-spacing: 0.05em;
}

.card__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.card__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.card__meta i { color: var(--accent-gold); font-size: 0.75rem; }

.card--cert {
  text-align: center;
  padding: 32px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-out);
}

.card--cert:hover {
  border-color: var(--border-gold);
  box-shadow: var(--shadow-glow-gold);
}

.card--cert .card--cert__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--accent-gold-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--accent-gold);
}

.card--cert h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.card--cert p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================================
   首页 — Hero Banner（Swiper 轮播）
   ============================================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
}

.hero .swiper {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    linear-gradient(180deg, rgba(6,14,9,0.4) 0%, rgba(6,14,9,0.2) 40%, rgba(6,14,9,0.9) 100%);
}

.hero__content {
  position: relative;
  z-index: 3;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-bottom: 100px;
  max-width: 900px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
  text-align: center;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 5.5vw, 3.6rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 0.75rem;
  text-shadow: 0 2px 40px rgba(0,0,0,0.5);
}

.hero__subtitle {
  font-size: clamp(0.95rem, 2vw, 1.2rem);
  color: rgba(255,255,255,0.7);
  margin-bottom: 2rem;
  font-weight: 300;
  letter-spacing: 0.04em;
}

.hero__actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 28px;
}

.hero-pagination .swiper-pagination-bullet {
  width: 36px;
  height: 2px;
  border-radius: 1px;
  background: rgba(255,255,255,0.3);
  opacity: 1;
  transition: all var(--duration-normal);
}

.hero-pagination .swiper-pagination-bullet-active {
  width: 56px;
  background: var(--accent-gold);
  box-shadow: 0 0 10px var(--accent-gold);
}

/* 滚动指示器 */
.hero__scroll-indicator {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.35);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  animation: scrollFloat 2s ease-in-out infinite;
}

.hero__scroll-line {
  width: 1px;
  height: 28px;
  background: linear-gradient(180deg, var(--accent-gold), transparent);
}

@keyframes scrollFloat {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ============================================================
   首页 — 安全数据（数字滚动）
   ============================================================ */
.stats-section {
  padding: 64px 0;
  background: rgba(10, 31, 19, 0.5);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

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

.stat-item {
  text-align: center;
  padding: 20px;
}

.stat-item__number {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 4.5vw, 3.2rem);
  font-weight: 700;
  color: #fff;
  line-height: 1;
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}

.stat-item__number span {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-item__label {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

/* ============================================================
   首页 — 核心能力/信创能力（四列图标卡片）
   ============================================================ */
.capabilities {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.capability-card {
  text-align: center;
  padding: 36px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-out);
}

.capability-card:hover {
  border-color: var(--border-gold);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-gold);
}

.capability-card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 18px;
  border-radius: var(--radius-sm);
  background: var(--accent-gold-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--accent-gold);
  transition: all var(--duration-normal);
}

.capability-card:hover .capability-card__icon {
  box-shadow: 0 0 20px rgba(200, 168, 78, 0.2);
  transform: scale(1.08);
}

.capability-card:nth-child(2) .capability-card__icon { background: var(--accent-green-dim); color: var(--accent-green); }
.capability-card:nth-child(3) .capability-card__icon { background: var(--accent-cyan-dim); color: var(--accent-cyan); }
.capability-card:nth-child(4) .capability-card__icon { background: var(--accent-steel-dim); color: var(--accent-steel); }

.capability-card__title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.capability-card__desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   首页 — 产品网格
   ============================================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 28px 18px;
  text-align: center;
  transition: all var(--duration-normal) var(--ease-out);
}

.product-card:hover {
  border-color: var(--border-gold);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow-gold);
}

.product-card__image {
  width: 100%;
  height: 160px;
  margin: 0 0 14px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-input);
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-card__image .fallback-icon {
  font-size: 2rem;
  color: var(--accent-green);
}

.product-card__title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.product-card__level {
  display: inline-block;
  padding: 2px 10px;
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--accent-gold);
  background: var(--accent-gold-dim);
  border-radius: 2px;
  letter-spacing: 0.05em;
}

/* ============================================================
   首页 — 解决方案网格
   ============================================================ */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.solution-card {
  text-align: center;
  padding: 32px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-out);
}

.solution-card:hover {
  border-color: var(--border-gold);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
}

.solution-card__icon {
  font-size: 2rem;
  color: var(--accent-gold);
  margin-bottom: 12px;
  display: block;
}

.solution-card__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.solution-card__desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   首页 — 案例网格（四列）
   ============================================================ */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all var(--duration-normal) var(--ease-out);
}

.case-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-2px);
}

.case-card__image {
  width: 100%;
  height: 120px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-input);
  margin-bottom: 12px;
}
.case-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-card__title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.case-card__desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ============================================================
   首页 — 合规认证网格
   ============================================================ */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* ============================================================
   首页 — 新闻列表（左图右文）
   ============================================================ */
.news-list-v {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.news-item-h {
  display: flex;
  gap: 20px;
  padding: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-out);
}

.news-item-h:hover {
  border-color: var(--border-gold);
  background: var(--bg-card-hover);
}

.news-item-h__thumb {
  width: 140px;
  height: 100px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-input);
}

.news-item-h__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-item-h__info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.news-item-h__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.news-item-h__date {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.news-item-h__desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============================================================
   首页 — 研究文章（三列）
   ============================================================ */
.research-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.research-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all var(--duration-normal) var(--ease-out);
  display: flex;
  flex-direction: column;
}

.research-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-2px);
}

.research-card__image {
  width: 100%;
  height: 140px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-input);
  margin-bottom: 12px;
}
.research-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.research-card__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.research-card__desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}

.research-card__date {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 12px;
}

/* ============================================================
   首页 — CTA
   ============================================================ */
.cta-section {
  text-align: center;
  padding: 80px 0 100px;
  position: relative;
  overflow: hidden;
  background: var(--bg-primary);
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-gold);
}

.cta-section__title {
  font-size: clamp(1.6rem, 3.5vw, 2.5rem);
  margin-bottom: 0.75rem;
  color: #fff;
}

.cta-section__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 720px;
  margin: 28px auto 0;
}

.cta-item {
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--duration-fast);
}

.cta-item:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.cta-item i {
  display: block;
  font-size: 1.8rem;
  color: var(--accent-gold);
  margin-bottom: 8px;
}

/* 金色大按钮 */
.btn--cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 40px;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  background: var(--gradient-gold);
  color: #0A0F14;
  margin-top: 32px;
  transition: all var(--duration-normal) var(--ease-out);
}

.btn--cta:hover {
  color: #0A0F14;
  box-shadow: 0 0 40px rgba(200, 168, 78, 0.35);
  transform: translateY(-2px);
}

/* ============================================================
   列表页 — 网格 & 过滤栏
   ============================================================ */
.list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.list-grid--4 { grid-template-columns: repeat(4, 1fr); }

.list-header {
  text-align: center;
  margin-bottom: 44px;
}

.list-header h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.25rem);
  margin-bottom: 0.4rem;
}

.filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 36px;
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.filter-bar::-webkit-scrollbar { display: none; }

.filter-bar a {
  display: inline-flex;
  padding: 7px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border-card);
  border-radius: 100px;
  white-space: nowrap;
  flex-shrink: 0;
  transition: all var(--duration-fast) var(--ease-out);
}

.filter-bar a:hover, .filter-bar a.active {
  color: var(--accent-gold);
  border-color: var(--accent-gold);
  background: var(--accent-gold-dim);
}

/* ============================================================
   详情页
   ============================================================ */
.detail {
  max-width: 880px;
  margin: 0 auto;
}

.detail__header {
  margin-bottom: 28px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--border-subtle);
}

.detail__title {
  font-size: clamp(1.4rem, 3vw, 2rem);
  margin-bottom: 10px;
  color: var(--text-primary);
}

.detail__meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.84rem;
  color: var(--text-muted);
}

.detail__meta-row i { margin-right: 4px; color: var(--accent-gold); }

.detail__params {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
  margin-bottom: 28px;
}

.detail__param {
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  text-align: center;
}

.detail__param-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 3px;
  letter-spacing: 0.05em;
}

.detail__param-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.detail__param-value.highlight {
  color: var(--accent-gold);
}

.detail__body {
  color: var(--text-secondary);
  line-height: 2;
  font-size: 0.93rem;
  letter-spacing: 0.015em;
}

.detail__body img { border-radius: var(--radius-md); margin: 24px 0; max-width: 100%; }
.detail__body p { margin-bottom: 16px; }
.detail__body h2, .detail__body h3 { color: var(--text-primary); margin-top: 28px; margin-bottom: 14px; }

/* Tab 切换 */
.detail-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 28px;
}

.detail-tabs button {
  padding: 12px 24px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--duration-fast);
  margin-bottom: -1px;
}

.detail-tabs button:hover { color: var(--text-primary); }
.detail-tabs button.active {
  color: var(--accent-gold);
  border-bottom-color: var(--accent-gold);
}

.tab-panel { display: none; }
.tab-panel:not(.hidden) { display: block; }
.tab-panel.hidden { display: none; }

/* 上下篇 */
.detail__pager {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.detail__pager a { color: var(--text-secondary); }
.detail__pager a:hover { color: var(--accent-gold); }

.related-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 52px 0 20px;
  color: var(--text-primary);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* ============================================================
   联系我们/咨询页
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
}

.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  transition: all var(--duration-fast);
}

.contact-info__item:hover { border-color: var(--border-gold); }

.contact-info__icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--accent-gold-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-gold);
  flex-shrink: 0;
}

.contact-info__label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.contact-info__value {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.contact-form-card {
  padding: 34px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
}

.form-group { margin-bottom: 16px; }

.form-group label {
  display: block;
  font-size: 0.84rem;
  color: var(--text-secondary);
  margin-bottom: 5px;
}

.form-group label .required { color: #E05252; }

.message-form input[type="text"],
.message-form input[type="tel"],
.message-form input[type="email"],
.message-form textarea {
  width: 100%;
  padding: 12px 15px;
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color var(--duration-fast) var(--ease-out);
  box-sizing: border-box;
}
.message-form input:focus,
.message-form textarea:focus {
  outline: none;
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px var(--accent-gold-dim);
}
.message-form textarea { resize: vertical; min-height: 100px; }
.form-group--captcha { display: flex; gap: 12px; }
.form-group--captcha input { flex: 1; }
.captcha-img { height: 44px; border-radius: var(--radius-sm); cursor: pointer; border: 1px solid var(--border-card); }

.form-control {
  width: 100%;
  padding: 12px 15px;
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: all var(--duration-fast) var(--ease-out);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px var(--accent-gold-dim);
}

textarea.form-control { resize: vertical; min-height: 90px; }

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%237B8A9B' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

/* ============================================================
   搜索页
   ============================================================ */
.search-box { max-width: 680px; margin: 0 auto; }

.search-form-row {
  display: flex;
  gap: 10px;
}

.search-input-wrap { position: relative; flex: 1; }

.search-input-wrap i {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.95rem;
}

.search-form-row input {
  flex: 1;
  padding: 14px 20px 14px 42px;
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.93rem;
}

.search-form-row input:focus {
  outline: none;
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px var(--accent-gold-dim);
}

.search-result-item {
  display: flex;
  gap: 16px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast);
  margin-bottom: 8px;
}

.search-result-item:hover {
  border-color: var(--border-gold);
  background: var(--bg-card-hover);
}

.search-result-item__thumb {
  width: 100px;
  height: 76px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-input);
}

.search-result-item__thumb img { width: 100%; height: 100%; object-fit: cover; }

.search-result-item__info { flex: 1; min-width: 0; }

.search-result-item__title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-result-item__date {
  font-size: 0.76rem;
  color: var(--text-muted);
  margin-bottom: 3px;
}

.search-result-item__desc {
  font-size: 0.84rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============================================================
   分页
   ============================================================ */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
  margin-top: 44px;
}

.pagination a, .pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 8px;
  font-size: 0.86rem;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-out);
  background: transparent;
}

.pagination a:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  background: var(--accent-gold-dim);
}

.pagination .active {
  background: var(--gradient-gold);
  color: #0A0F14;
  border-color: transparent;
  font-weight: 600;
}

.pagination .disabled {
  color: var(--text-muted);
  pointer-events: none;
  opacity: 0.4;
}

/* ============================================================
   空状态
   ============================================================ */
.empty-state {
  text-align: center;
  padding: 60px 20px;
}

.empty-state i {
  font-size: 2.8rem;
  color: var(--text-muted);
  margin-bottom: 14px;
  display: block;
  opacity: 0.4;
}

.empty-state p { color: var(--text-muted); font-size: 0.93rem; }

/* ============================================================
   在线客服按钮（右下角金色圆形）
   ============================================================ */
.online-service {
  position: fixed;
  right: 20px;
  bottom: 140px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-gold);
  color: #0A0F14;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  z-index: 90;
  box-shadow: 0 4px 16px rgba(200, 168, 78, 0.3);
  transition: all var(--duration-normal) var(--ease-out);
}

.online-service:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 24px rgba(200, 168, 78, 0.5);
}

/* ============================================================
   返回顶部
   ============================================================ */
.back-top {
  position: fixed;
  right: 20px;
  bottom: 80px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  cursor: pointer;
  z-index: 80;
  opacity: 0;
  pointer-events: none;
  transition: all var(--duration-normal) var(--ease-out);
}

.back-top.show { opacity: 1; pointer-events: auto; }

.back-top:hover {
  background: var(--accent-gold);
  color: #0A0F14;
  border-color: var(--accent-gold);
}

/* ============================================================
   Footer 底部 — 深色四列
   ============================================================ */
.footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-subtle);
}

.footer__top-line {
  height: 2px;
  background: var(--gradient-gold);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding: 56px 0 36px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.footer__brand-desc {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 14px 0;
}

.footer__social {
  display: flex;
  gap: 10px;
}

.footer__social a {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: all var(--duration-fast);
}

.footer__social a:hover {
  background: var(--accent-gold);
  color: #0A0F14;
  border-color: var(--accent-gold);
}

.footer__col-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 18px;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer__links a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: color var(--duration-fast);
}

.footer__links a:hover { color: var(--accent-gold); }

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.84rem;
  color: var(--text-secondary);
  margin-bottom: 9px;
}

.footer__contact-item i {
  color: var(--accent-gold);
  margin-top: 3px;
  flex-shrink: 0;
}

.footer__qrcode {
  width: 100px;
  height: 100px;
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  color: #999;
}

/* 合作伙伴 */
.friend-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  padding: 14px 0;
}

.friend-links__label {
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.friend-links a {
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: color var(--duration-fast);
}

.friend-links a:hover { color: var(--accent-gold); }

.footer__bottom {
  border-top: 1px solid var(--border-subtle);
  padding: 18px 0;
}

.footer__bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  font-size: 0.78rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 8px;
}

.footer__bottom a { color: var(--text-muted); }
.footer__bottom a:hover { color: var(--accent-gold); }

/* ============================================================
   动画系统 — 安全稳重风格
   ============================================================ */

/* 金色边框缓缓扫过 */
@keyframes borderScan {
  0% { border-color: var(--border-card); }
  50% { border-color: var(--border-gold); }
  100% { border-color: var(--border-card); }
}

.scan-border {
  animation: borderScan 3s ease-in-out infinite;
}

/* 按钮脉冲 */
@keyframes btnPulse {
  0% { box-shadow: 0 0 0 0 rgba(200, 168, 78, 0.4); }
  70% { box-shadow: 0 0 0 14px rgba(200, 168, 78, 0); }
  100% { box-shadow: 0 0 0 0 rgba(200, 168, 78, 0); }
}

.btn--primary.pulse { animation: btnPulse 2s infinite; }

/* 安全数据数字滚动光晕 */
@keyframes statGlow {
  0%, 100% { text-shadow: 0 0 8px rgba(200, 168, 78, 0.15); }
  50% { text-shadow: 0 0 18px rgba(200, 168, 78, 0.35); }
}

.stat-item__number span { animation: statGlow 3s ease-in-out infinite; }

/* 卡片入场悬浮 */
@keyframes floatUpDown {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.float-element { animation: floatUpDown 4s ease-in-out infinite; }

/* 顶部扫描线 */
@keyframes scanLine {
  0% { left: -100%; }
  100% { left: 100%; }
}

.scan-line {
  position: relative;
  overflow: hidden;
}

.scan-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(200,168,78,0.3), transparent);
  animation: scanLine 4s ease-in-out infinite;
  pointer-events: none;
}

/* 装饰线：金色短线分组 */
.decor-line {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
}

.decor-line::before, .decor-line::after {
  content: '';
  height: 1px;
  background: var(--border-subtle);
}

.decor-line::before { width: 30px; }
.decor-line::after { flex: 1; }

/* AOS 覆盖 */
[data-aos] { transition-timing-function: var(--ease-out); }

/* ============================================================
   响应式 — 平板 (768px - 1023px)
   ============================================================ */
@media (max-width: 1023px) {
  :root { --section-py: 64px; }

  .header__nav, .header__actions { display: none; }
  .hamburger { display: flex; }

  .hero { height: 85vh; min-height: 480px; }

  .stats { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .capabilities { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: repeat(3, 1fr); }
  .solutions-grid { grid-template-columns: repeat(3, 1fr); }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .certs-grid { grid-template-columns: repeat(2, 1fr); }
  .research-grid { grid-template-columns: repeat(2, 1fr); }

  .list-grid { grid-template-columns: repeat(2, 1fr); }
  .related-grid { grid-template-columns: repeat(2, 1fr); }

  .contact-grid { grid-template-columns: 1fr; }
  .cta-section__grid { grid-template-columns: repeat(2, 1fr); }

  .footer__grid { grid-template-columns: 1fr 1fr; }

  .detail-tabs { overflow-x: auto; }
  .detail-tabs button { white-space: nowrap; }

  .guide-section { grid-template-columns: 1fr; }
}

/* ============================================================
   响应式 — 移动端 (< 768px)
   ============================================================ */
@media (max-width: 767px) {
  :root { --section-py: 52px; }

  /* 移动端安全兜底：杜绝任何宽内容（大图/表格/视频/iframe）把页面撑出视口，
     避免整页偏左或出现横向滚动。仅移动端生效，不影响 PC 布局。 */
  html, body { max-width: 100%; }
  img, video, iframe, table { max-width: 100% !important; }

  /* 手机端轮播图缩短：80vh 接近满屏，降为约半屏，PC/平板不受影响 */
  .hero { height: 55vh; min-height: 340px; }
  .hero__content { padding-bottom: 40px; }
  .hero__scroll-indicator { display: none; }

  .inner-banner { height: 220px; }

  /* 手机端统计区压缩：减小外边距/内边距与字号，让轮播图下方的数字区更紧凑 */
  .stats-section { padding: 26px 0; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 10px 16px; }
  .stat-item { padding: 8px 4px; }
  .stat-item__number { font-size: 1.5rem; margin-bottom: 4px; }
  .stat-item__label { font-size: 0.78rem; }
  /* 手机端信创能力：两列两行，压缩卡片留白与字号 */
  .capabilities { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .capability-card { padding: 20px 14px; }
  .capability-card__icon { width: 44px; height: 44px; margin-bottom: 10px; font-size: 1.1rem; }
  .capability-card__title { font-size: 0.98rem; margin-bottom: 4px; }
  .capability-card__desc { font-size: 0.78rem; line-height: 1.5; }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  /* 手机端解决方案：3 列正好两行（3+2），压缩卡片留白与字号 */
  .solutions-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .solution-card { padding: 16px 8px; }
  .solution-card__icon { font-size: 1.5rem; margin-bottom: 8px; }
  .solution-card__title { font-size: 0.88rem; margin-bottom: 4px; }
  .solution-card__desc {
    font-size: 0.72rem; line-height: 1.4;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  }
  /* 手机端客户案例：一行两个、共四个（2×2），压缩卡片 */
  .cases-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .case-card { padding: 14px; }
  .case-card__image { height: 96px; margin-bottom: 8px; }
  .case-card__title { font-size: 0.9rem; margin-bottom: 4px; }
  .case-card__desc {
    font-size: 0.76rem; line-height: 1.45;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  }
  /* 手机端合规认证：四个并排一行，压缩卡片（仅保留图标+名称） */
  .certs-grid { grid-template-columns: repeat(4, 1fr); gap: 8px; }
  .card--cert { padding: 14px 4px; }
  .card--cert .card--cert__icon { width: 38px; height: 38px; margin: 0 auto 8px; font-size: 1rem; }
  .card--cert h4 { font-size: 0.72rem; line-height: 1.3; margin-bottom: 0; }
  .card--cert p { display: none; }
  /* 手机端安全研究：只留两个并排一行，压缩卡片 */
  .research-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .research-card { padding: 14px; }
  .research-card:nth-child(n+3) { display: none; }
  .research-card__image { height: 90px; margin-bottom: 8px; }
  .research-card__title { font-size: 0.9rem; margin-bottom: 4px; }
  .research-card__desc {
    font-size: 0.76rem; line-height: 1.45;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  }
  .research-card__date { font-size: 0.72rem; margin-top: 8px; }
  /* 手机端CTA：三个按钮并排一行，压缩留白 */
  .cta-section { padding: 44px 0 56px; }
  .cta-section__title { font-size: 1.4rem; margin-bottom: 0.4rem; }
  .cta-section__grid { grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 20px; }
  .cta-item { padding: 12px 6px; font-size: 0.85rem; }
  .cta-item i { font-size: 1.4rem; margin-bottom: 6px; }
  .btn--cta { padding: 12px 28px; font-size: 0.92rem; margin-top: 22px; }

  /* 手机端列表页：产品/案例/方案/研究卡片一行两个 */
  .list-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .related-grid { grid-template-columns: 1fr; }
  .detail__params { grid-template-columns: repeat(2, 1fr); }
  .detail__pager { flex-direction: column; gap: 8px; text-align: center; }

  /* 手机端新闻资讯：压缩缩略图高度与留白，描述限一行 */
  .news-list-v { gap: 12px; }
  .news-item-h { flex-direction: column; gap: 0; padding: 12px; }
  .news-item-h__thumb { width: 100%; height: 110px; margin-bottom: 10px; }
  .news-item-h__title { font-size: 0.92rem; margin-bottom: 4px; }
  .news-item-h__date { font-size: 0.72rem; margin-bottom: 4px; }
  .news-item-h__desc { font-size: 0.78rem; -webkit-line-clamp: 1; }

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

  .footer__grid { grid-template-columns: 1fr; gap: 28px; }
  /* 手机端底部链接：快速链接/服务支持横排一行 */
  .footer__links { flex-direction: row; flex-wrap: wrap; gap: 6px 10px; }
  .footer__links a { font-size: 0.8rem; }
  .footer__col-title { margin-bottom: 12px; }
  .footer__bottom-inner { flex-direction: column; text-align: center; }

  .card__body { padding: 16px; }

  .search-result-item { flex-direction: column; }
  .search-result-item__thumb { width: 100%; height: 140px; }

  .back-top { right: 12px; bottom: 56px; }
  .online-service { right: 12px; bottom: 108px; }
}

@media (max-width: 374px) {
  body { font-size: 15px; }
  .products-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}