/* ============================================
   PepNexa 移动端优化 v3.0
   ============================================ */

/* ----------------------------------------
   1. 通用：减少内边距 / 字号 / 间距
   ---------------------------------------- */
@media (max-width: 768px) {

  /* 全局 */
  html { font-size: 15px; }
  body { overflow-x: hidden; }
  .container { padding: 0 1rem; }
  .section { padding: 3.5rem 0; }
  .section-header { margin-bottom: 2.5rem; }

  /* 标题字阶 */
  .section-title { font-size: 1.65rem !important; line-height: 1.2; }
  .section-subtitle { font-size: 0.95rem; }
  .section-tag { font-size: 0.7rem; padding: 0.3rem 0.75rem; }

  /* ----------------------------------------
     2. 导航：汉堡菜单
     ---------------------------------------- */
  .navbar { padding: 0; }
  .nav-container {
    padding: 0.85rem 1rem;
    gap: 0.5rem;
    flex-wrap: nowrap;
  }

  .logo { font-size: 1rem; gap: 0.5rem; flex-shrink: 0; }
  .logo-icon { width: 32px; height: 32px; border-radius: 8px; }
  .logo-icon svg { width: 18px; height: 18px; }

  /* 桌面 nav-links 默认隐藏 */
  .nav-links { display: none; }

  /* 汉堡按钮 */
  .nav-toggle {
    display: flex !important;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-secondary);
    flex-shrink: 0;
  }

  /* nav-actions 顺序调整 */
  .nav-actions {
    margin-left: auto;
    gap: 0.4rem;
  }
  .lang-switch { padding: 0.2rem; }
  .lang-btn { padding: 0.3rem 0.55rem; font-size: 0.72rem; }
  .theme-toggle { width: 36px; height: 36px; border-radius: 9px; }

  /* 隐藏 desktop 的大 CTA 按钮（mobile 用浮动 WA） */
  .nav-actions .btn-primary { display: none !important; }

  /* 抽屉菜单 */
  .nav-drawer {
    position: fixed;
    inset: 0;
    background: rgba(5, 8, 16, 0.92);
    backdrop-filter: blur(24px);
    z-index: 200;
    display: none;
    flex-direction: column;
    padding: 1.25rem;
    animation: fade-in 0.25s ease;
  }
  .nav-drawer.open { display: flex; }
  .nav-drawer .drawer-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
  }
  .nav-drawer .drawer-close {
    width: 40px; height: 40px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; color: var(--text-secondary);
  }
  .nav-drawer ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }
  .nav-drawer ul a {
    display: block;
    padding: 1rem 1.25rem;
    border-radius: 14px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    transition: all 0.2s;
  }
  .nav-drawer ul a:active {
    background: var(--glass-bg-strong);
    border-color: var(--accent-emerald);
    transform: scale(0.98);
  }
  .nav-drawer .drawer-foot {
    margin-top: auto;
    padding-top: 1.5rem;
    border-top: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  /* ----------------------------------------
     3. Hero：紧凑
     ---------------------------------------- */
  .hero {
    padding: 2.5rem 1rem 2rem !important;
    min-height: auto;
  }
  .hero-canvas {
    opacity: 0.4;
  }
  .hero-badge {
    font-size: 0.72rem;
    padding: 0.35rem 0.85rem;
    margin-bottom: 1.25rem;
  }
  .hero h1 {
    font-size: 1.95rem !important;
    line-height: 1.1;
    margin-bottom: 1rem;
  }
  .hero h1 br { display: none; }
  .hero p {
    font-size: 0.95rem;
    margin-bottom: 1.75rem;
    padding: 0 0.5rem;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
    gap: 0.75rem;
    padding: 0 1rem;
  }
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
    padding: 0.85rem 1.25rem;
    font-size: 0.95rem;
  }

  /* ----------------------------------------
     4. 信任栏：2x2 grid
     ---------------------------------------- */
  .trust-bar {
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    padding: 1.5rem 1rem;
    border-radius: 18px;
    margin: 2rem 0;
  }
  .trust-stat .num { font-size: 1.85rem !important; }
  .trust-stat .label { font-size: 0.78rem; }

  /* ----------------------------------------
     5. logo 墙：3 列
     ---------------------------------------- */
  .logo-wall {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    padding: 1.5rem 0;
    margin: 2.5rem 0;
  }
  .logo-wall .client-logo {
    font-size: 0.78rem;
    height: 32px;
  }

  /* ----------------------------------------
     6. 产品网格：1 列
     ---------------------------------------- */
  .product-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .product-card {
    padding: 1.35rem;
    border-radius: 16px;
  }
  .product-img {
    width: calc(100% + 2.7rem);
    height: 160px;
    margin: -1.35rem -1.35rem 1rem;
    padding: 1rem;
  }
  .product-tag { font-size: 0.68rem; padding: 0.22rem 0.65rem; }
  .product-card h3 { font-size: 1.2rem; }
  .product-card .desc { font-size: 0.85rem; min-height: auto; margin-bottom: 1rem; }

  /* 关闭移动端 3D tilt（卡顿）*/
  .product-card:hover { transform: translateY(-3px); }

  /* 筛选器：水平滚动 */
  .filter-bar {
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
    justify-content: flex-start;
    padding: 0.25rem 0.25rem 0.5rem;
    margin: 0 -1rem 2rem;
    padding-left: 1rem;
    padding-right: 1rem;
    scrollbar-width: none;
  }
  .filter-bar::-webkit-scrollbar { display: none; }
  .filter-chip {
    flex-shrink: 0;
    font-size: 0.82rem;
    padding: 0.45rem 1rem;
  }

  /* ----------------------------------------
     7. Features grid：1 列
     ---------------------------------------- */
  .features-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .feature-card {
    padding: 1.5rem;
    border-radius: 16px;
  }
  .feature-icon {
    width: 48px; height: 48px;
    margin-bottom: 1rem;
    border-radius: 12px;
  }
  .feature-icon svg { width: 22px; height: 22px; }
  .feature-card h3 { font-size: 1.05rem; }
  .feature-card p { font-size: 0.88rem; }

  /* ----------------------------------------
     8. Catalog Gate：紧凑
     ---------------------------------------- */
  .catalog-gate {
    padding: 2.5rem 1.25rem;
    border-radius: 22px;
  }
  .catalog-gate .badge {
    font-size: 0.78rem;
    padding: 0.35rem 0.95rem;
  }
  .catalog-gate h2 { font-size: 1.55rem !important; }
  .catalog-gate p { font-size: 0.95rem; }
  .catalog-gate .actions {
    flex-direction: column;
    width: 100%;
    gap: 0.65rem;
  }
  .catalog-gate .actions .btn {
    width: 100%;
    justify-content: center;
  }

  /* ----------------------------------------
     9. FAQ
     ---------------------------------------- */
  .faq-q {
    padding: 1.1rem 1.25rem;
    font-size: 0.92rem;
  }
  .faq-a-inner {
    padding: 0 1.25rem 0;
    font-size: 0.88rem;
    transition: padding 0.3s;
  }
  .faq-item.open .faq-a-inner {
    padding: 0 1.25rem 1.25rem;
  }

  /* ----------------------------------------
     10. 产品详情：竖排
     ---------------------------------------- */
  .product-detail {
    grid-template-columns: 1fr;
    gap: 1.75rem;
    padding: 1.5rem 0 2.5rem;
  }
  .product-detail-img {
    padding: 2rem;
    min-height: 280px;
    border-radius: 22px;
  }
  .product-detail-img img {
    max-height: 240px;
  }
  .product-detail h1 { font-size: 1.85rem !important; }
  .product-detail .tag { font-size: 0.95rem; }
  .description-block { font-size: 0.92rem; margin-bottom: 1.5rem; }
  .spec-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.65rem;
    margin: 1.25rem 0;
  }
  .spec-item {
    padding: 0.85rem 1rem;
    border-radius: 12px;
  }
  .spec-item .label { font-size: 0.7rem; }
  .spec-item .value { font-size: 0.92rem; }

  .action-buttons {
    flex-direction: column;
    gap: 0.65rem;
  }
  .action-buttons .btn {
    width: 100%;
    justify-content: center;
  }

  /* ----------------------------------------
     11. 页脚：2 列
     ---------------------------------------- */
  .footer { padding: 3rem 1rem 1.5rem; margin-top: 3rem; }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
  }
  .footer-brand {
    grid-column: 1 / -1;
    margin-bottom: 0.5rem;
  }
  .footer h4 { font-size: 0.72rem; margin-bottom: 0.85rem; }
  .footer ul li { margin-bottom: 0.5rem; }
  .footer ul a { font-size: 0.85rem; }
  .footer-bottom {
    font-size: 0.78rem;
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
  }

  /* ----------------------------------------
     12. 浮动 WA：缩小，不挡内容
     ---------------------------------------- */
  .wa-float {
    bottom: 1rem;
    right: 1rem;
    padding: 0;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.45);
  }
  .wa-float .wa-icon {
    width: 50px;
    height: 50px;
    margin: 0;
  }
  .wa-float .wa-label { display: none !important; }
  .wa-float .wa-icon svg { width: 24px; height: 24px; }
  .wa-float::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 100px;
    background: rgba(37, 211, 102, 0.3);
    z-index: -1;
    animation: wa-ring 2s infinite;
  }
  @keyframes wa-ring {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(1.5); opacity: 0; }
  }
}

/* ----------------------------------------
   桌面隐藏汉堡按钮
   ---------------------------------------- */
.nav-toggle { display: none; }
.nav-drawer { display: none; }

/* ----------------------------------------
   极小屏（< 380px）
   ---------------------------------------- */
/* ----------------------------------------
   8. Contact 页优化
   ---------------------------------------- */
@media (max-width: 768px) {
  .page-hero {
    padding: 2rem 0 1rem !important;
  }
  .page-hero h1 {
    font-size: clamp(1.6rem, 6vw, 2.2rem) !important;
    margin: 0.5rem 0 0.75rem !important;
  }
  .page-subtitle {
    font-size: 0.9rem;
    padding: 0 0.5rem;
  }
  .contact-channels {
    gap: 0.5rem;
    position: static;  /* 取消 sticky，mobile 不需要 */
  }
  .channel-card {
    padding: 0.6rem 0.75rem;
    gap: 0.25rem;
  }
  .channel-card h3 {
    font-size: 0.85rem;
  }
  .channel-card p {
    font-size: 0.72rem;
    line-height: 1.4;
    margin-bottom: 0.4rem;
  }
  .channel-icon {
    width: 28px;
    height: 28px;
    margin-bottom: 0.25rem;
  }
  .channel-icon svg {
    width: 14px;
    height: 14px;
  }
  .channel-btn {
    padding: 0.45rem 0.5rem;
    font-size: 0.78rem;
  }
  .quote-form {
    padding: 1.25rem !important;
  }
  .quote-form h2 {
    font-size: 1.2rem;
  }
  .quote-form input,
  .quote-form select,
  .quote-form textarea {
    font-size: 16px;  /* iOS Safari: ≥16px 防止 focus 时 zoom */
    padding: 0.6rem 0.7rem;
  }
  .form-disclaimer {
    font-size: 0.72rem;
    padding: 0.75rem 0.85rem;
    line-height: 1.5;
  }
  .form-submit {
    padding: 0.85rem;
    font-size: 0.95rem;
  }
}

/* ----------------------------------------
   9. 极小屏（< 380px）
   ---------------------------------------- */
@media (max-width: 380px) {
  html { font-size: 14px; }
  .hero h1 { font-size: 1.75rem !important; }
  .nav-actions { gap: 0.3rem; }
  .lang-switch { display: none; }  /* 移到抽屉 */
  .page-hero h1 { font-size: 1.4rem !important; }
  .quote-form { padding: 1rem !important; }
}
/* 中文/印度文 Android 字体兜底 */
body, html[lang="zh"], html[lang="hi"] {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'WenQuanYi Micro Hei', 'Noto Sans CJK SC', 'Noto Sans SC', 'Source Han Sans SC', 'Helvetica Neue', Arial, sans-serif !important;
}