/* ============================================================
   基础重置
   ============================================================ */
html { font-size: calc(16px + 2 * (100vw - 375px) / 375); }
* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
    background: linear-gradient(180deg, #eaf3ff 0%, #f7faff 100%);
    min-height: 100vh;
    padding-top: 0;
    padding-bottom: calc(4.2rem + env(safe-area-inset-bottom));
    overflow-x: hidden;
    font-size: 1rem;
    position: relative;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* ============================================================
   顶部导航
   ============================================================ */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1.2rem;
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(12px) saturate(160%);
    -webkit-backdrop-filter: blur(12px) saturate(160%);
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.06);
    border-bottom: 1px solid rgba(255, 255, 255, 0.4);
    transition: background 0.3s ease, box-shadow 0.35s ease, backdrop-filter 0.35s ease, border-color 0.3s ease;
    height: 4.2rem;
}
.header.scrolled {
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.8);
}

/* ===== 菜单按钮 ===== */
.menu-btn {
    width: 1.7rem; height: 1.7rem;
    display: flex; flex-direction: column;
    justify-content: center; align-items: center;
    gap: 0.3rem; cursor: pointer; flex-shrink: 0;
    position: relative;
}
.menu-btn span {
    display: block;
    width: 1.5rem; height: 0.13rem;
    background: #333;
    border-radius: 2px;
    transition: all 0.35s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    position: absolute; left: 50%;
    transform: translateX(-50%);
}
.menu-btn span:nth-child(1) { top: 0.2rem; }
.menu-btn span:nth-child(2) { top: 0.7rem; }
.menu-btn span:nth-child(3) { top: 1.2rem; }
.menu-btn.is-active span:nth-child(1) { top: 0.7rem; transform: translateX(-50%) rotate(45deg); }
.menu-btn.is-active span:nth-child(2) { opacity: 0; transform: translateX(-50%) scaleX(0); }
.menu-btn.is-active span:nth-child(3) { top: 0.7rem; transform: translateX(-50%) rotate(-45deg); }

/* ===== PC 桌面导航 ===== */
.desktop-nav { display: none; align-items: center; gap: 0.2rem; flex: 1; margin-left: 1.5rem; }
.desktop-nav .nav-item {
    position: relative;
    padding: 0.3rem 0.8rem;
    font-size: 0.92rem; font-weight: 500;
    color: #1d1d1f; cursor: pointer;
    border-radius: 4px;
    transition: background 0.2s ease, color 0.2s ease;
    white-space: nowrap; user-select: none;
}
.desktop-nav .nav-item:hover { background: rgba(26, 76, 255, 0.06); color: #1a4cff; }
.desktop-nav .nav-item .nav-label { display: flex; align-items: center; gap: 0.2rem; }
.desktop-nav .nav-item .nav-label::after {
    content: '▾'; font-size: 0.55rem; opacity: 0.5;
    margin-left: 0.2rem; transition: transform 0.2s ease;
}
.desktop-nav .nav-item:hover .nav-label::after { transform: rotate(180deg); }
.desktop-nav .nav-item[data-target="activity"] .nav-label { color: #d4a017; font-weight: 600; }

/* ===== PC 端下拉菜单 ===== */
.desktop-nav .dropdown {
    position: absolute;
    top: calc(100% + 0.4rem); left: 0;
    min-width: 210px;
    background: #ffffff;
    border-radius: 6px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.10);
    border: 1px solid rgba(0, 0, 0, 0.04);
    padding: 0.4rem 0;
    opacity: 0; visibility: hidden;
    transform: translateY(-4px) scale(0.98);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    pointer-events: none; z-index: 1000;
}
.desktop-nav .nav-item:hover .dropdown,
.desktop-nav .nav-item.dropdown-open .dropdown {
    opacity: 1; visibility: visible;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}
.desktop-nav .dropdown .drop-item {
    padding: 0.55rem 1.2rem;
    font-size: 0.88rem; color: #1d1d1f;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
    display: flex; align-items: center; justify-content: space-between;
    border-left: 3px solid transparent;
}
.desktop-nav .dropdown .drop-item:hover {
    background: #f5f7ff; color: #1a4cff;
    border-left-color: #1a4cff;
}
.desktop-nav .dropdown .drop-item .drop-arrow { color: #1a4cff; font-size: 0.9rem; opacity: 0.4; }
.desktop-nav .dropdown .drop-item:hover .drop-arrow { opacity: 1; }

/* ===== PC 端产品弹窗 ===== */
.desktop-nav .nav-item[data-target="products"] .dropdown {
    min-width: 680px; padding: 0;
    border-radius: 10px; overflow: hidden;
}
.product-mega-menu { display: flex; min-height: 280px; }
.mega-left {
    width: 220px; background: #f7f9fc;
    padding: 0.6rem 0;
    border-right: 1px solid #eef1f5;
    flex-shrink: 0; overflow-y: auto;
}
.mega-right { flex: 1; padding: 0.8rem 1.2rem; overflow-y: auto; max-height: 420px; }
.mega-left-item {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.7rem 1.2rem;
    font-size: 0.9rem; color: #1d1d1f;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
    border-left: 3px solid transparent; font-weight: 500;
}
.mega-left-item:hover { background: #eef4ff; color: #1a4cff; }
.mega-left-item.active { background: #ffffff; color: #1a4cff; border-left-color: #1a4cff; font-weight: 600; }
.mega-left-item .mega-left-arrow { font-size: 0.85rem; opacity: 0.4; }
.mega-left-item.active .mega-left-arrow,
.mega-left-item:hover .mega-left-arrow { opacity: 1; }
.mega-right-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem; }
.mega-right-item {
    display: flex; flex-direction: column; gap: 0.25rem;
    padding: 0.7rem 0.9rem; border-radius: 6px;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.15s ease;
    border: 1px solid transparent;
}
.mega-right-item:hover {
    background: #f5f8ff;
    border-color: rgba(26, 76, 255, 0.08);
    transform: translateY(-1px);
}
.mega-right-item .mega-item-title {
    display: flex; align-items: center; gap: 0.4rem;
    font-size: 0.9rem; font-weight: 600; color: #1d1d1f;
}
.mega-right-item .mega-item-tag {
    display: inline-flex; align-items: center;
    padding: 0.1rem 0.4rem; border-radius: 2px;
    font-size: 0.68rem; font-weight: 500; line-height: 1.4;
}
.mega-item-tag.hot { background: rgba(245, 158, 11, 0.1); color: #d97706; border: 1px solid rgba(245, 158, 11, 0.2); }
.mega-item-tag.gaofang { background: rgba(239, 68, 68, 0.08); color: #dc2626; border: 1px solid rgba(239, 68, 68, 0.15); }
.mega-item-tag.new { background: rgba(59, 130, 246, 0.08); color: #2563eb; border: 1px solid rgba(59, 130, 246, 0.15); }
.mega-right-item .mega-item-desc {
    font-size: 0.78rem; color: #667085; line-height: 1.5;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.mega-right-empty {
    display: flex; align-items: center; justify-content: center;
    height: 100%; min-height: 200px; color: #9aa4b2; font-size: 0.9rem;
}

/* ===== Logo ===== */
.logo { display: flex; align-items: center; cursor: default; user-select: none; flex-shrink: 0; }
.logo img { height: 2rem; width: auto; display: block; max-height: 2rem; object-fit: contain; }

/* ===== 用户头像 ===== */
.user-avatar {
    width: 2rem; height: 2rem; border-radius: 50%;
    overflow: hidden; flex-shrink: 0;
    cursor: pointer; transition: transform 0.2s ease; background: transparent;
}
.user-avatar:active { transform: scale(0.92); }
.user-avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ============================================================
   PC 端右侧用户操作区
   ============================================================ */
.pc-user-actions { display: none; align-items: stretch; height: 100%; margin-left: auto; flex-shrink: 0; align-self: stretch; }
.pc-user-actions .pc-action {
    font-size: 0.82rem; color: #1d1d1f;
    cursor: pointer;
    padding: 0 0.85rem; height: 100%;
    display: flex; align-items: center;
    transition: color 0.2s ease, background 0.2s ease;
    white-space: nowrap; user-select: none; text-decoration: none;
}
.pc-user-actions .pc-action:hover { color: #165DFF; background: rgba(22, 93, 255, 0.04); }
.pc-user-actions .pc-divider {
    color: #d1d5db; font-size: 0.75rem; padding: 0 0.1rem;
    user-select: none; display: flex; align-items: center;
}
.pc-user-actions .pc-action.register-btn {
    background: #165DFF; color: #ffffff;
    font-weight: 500; border-radius: 0;
    padding: 0 1.2rem; height: 100%;
    display: flex; align-items: center;
    text-decoration: none;
    transition: background 0.2s ease;
}
.pc-user-actions .pc-action.register-btn:hover { background: #0f4cd6; color: #ffffff; }

/* ============================================================
   侧边栏（移动端）
   ============================================================ */
.sidebar-overlay {
    position: fixed;
    top: 4.2rem; left: 0;
    width: 100vw; height: calc(100vh - 4.2rem);
    z-index: 998;
    background: rgba(0, 0, 0, 0.30);
    opacity: 0; visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
    pointer-events: none;
}
.sidebar-overlay.open { opacity: 1; visibility: visible; pointer-events: auto; }

.sidebar {
    position: fixed;
    top: 4.2rem; left: 0;
    width: 100vw; height: calc(100vh - 4.2rem);
    z-index: 999;
    display: flex;
    transform: translateX(-100%);
    transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
    background: #ffffff; overflow: hidden;
    pointer-events: none;
    border-top: 1px solid rgba(0, 0, 0, 0.04);
}
.sidebar.open { transform: translateX(0); pointer-events: auto; }

.sidebar-left {
    width: 33.333%; height: 100%;
    background: #F8F9FE;
    padding: 0;
    display: flex; flex-direction: column;
    flex-shrink: 0; overflow-y: auto;
    border-right: 1px solid rgba(22, 93, 255, 0.06);
}
.sidebar-menu { display: flex; flex-direction: column; gap: 0; flex: 1; }
.sidebar-menu .menu-item {
    padding: 1rem 1rem;
    font-size: 1.05rem; font-weight: 500;
    color: #1d1d1f; cursor: pointer;
    border-radius: 0;
    transition: background 0.25s ease, color 0.25s ease;
    background: transparent; border: none;
    text-align: left; width: 100%;
    font-family: inherit; box-shadow: none; margin: 0;
}
.sidebar-menu .menu-item.active { background: #ffffff; color: #165DFF; }
.sidebar-menu .menu-item:not(.active):hover { background: rgba(22, 93, 255, 0.06); color: #165DFF; }

.sidebar-home-btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: 0.35rem;
    margin: 1rem auto 1.6rem;
    padding: 0.55rem 1.1rem;
    background: transparent;
    border: 1px solid #165DFF;
    color: #165DFF; font-size: 0.95rem; font-weight: 500;
    font-family: inherit;
    text-decoration: none; cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
    width: auto; max-width: 90%; align-self: center;
}
.sidebar-home-btn:hover,
.sidebar-home-btn:active { background: rgba(22, 93, 255, 0.06); color: #165DFF; }
.sidebar-home-btn svg { width: 1rem; height: 1rem; stroke: currentColor; stroke-width: 2; fill: none; flex-shrink: 0; }

.sidebar-right {
    width: 66.667%; height: 100%;
    background: #ffffff;
    padding: 1.8rem 2rem 2rem 2rem;
    overflow-y: auto; flex-shrink: 0;
}
.sidebar-right .content-list { display: flex; flex-direction: column; gap: 0.8rem; }

.sidebar-right .content-item.item-plain {
    text-decoration: none; color: inherit;
    padding: 1.1rem 1.2rem;
    background: transparent; border: none; border-radius: 0;
    border-bottom: 1px solid #F0F3F8;
    transition: color 0.2s ease;
    display: flex; align-items: center; justify-content: space-between;
}
.sidebar-right .content-item.item-plain:last-child { border-bottom: none; }
.sidebar-right .content-item.item-plain:hover { color: #165DFF; }
.sidebar-right .content-item.item-plain .item-right-text {
    font-size: 0.95rem; color: #667085;
    white-space: nowrap; flex-shrink: 0; margin-left: 1rem;
}
.sidebar-right .content-item.item-plain:hover .item-right-text { color: #165DFF; }
.sidebar-right .content-item.item-plain .item-badge-hot {
    background: #f03838; color: #ffffff;
    font-size: 0.7rem; font-weight: 600;
    padding: 0.15rem 0.45rem; border-radius: 3px;
    line-height: 1.3; margin-left: 0.4rem;
}

/* 产品手风琴（侧边栏动态渲染） */
.product-accordion { display: flex; flex-direction: column; gap: 0; }
.product-accordion .acc-group { border: none; background: transparent; }
.product-accordion .acc-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.9rem 0.2rem;
    font-size: 0.95rem; font-weight: 600;
    color: #1d1d1f; cursor: pointer;
    background: transparent; border: none;
    border-bottom: 0.5px solid #F0F3F8;
    transition: color 0.2s ease;
}
.product-accordion .acc-group.open .acc-header { color: #165DFF; }
.product-accordion .acc-header .acc-arrow {
    font-size: 0.7rem; color: #9ca3af;
    transition: transform 0.3s ease, color 0.2s ease;
}
.product-accordion .acc-group.open .acc-header .acc-arrow { transform: rotate(180deg); color: #165DFF; }
.product-accordion .acc-body { max-height: 0; overflow: hidden; transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1); }
.product-accordion .acc-group.open .acc-body { max-height: 800px; }
.product-accordion .acc-body-inner { padding: 0.3rem 0 0.5rem; display: flex; flex-direction: column; }
.product-accordion .acc-sub-item {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.6rem 0.2rem;
    font-size: 0.88rem; color: #4b5563;
    text-decoration: none;
    transition: color 0.2s ease, padding-left 0.2s ease;
}
.product-accordion .acc-sub-item:hover { color: #165DFF; padding-left: 0.6rem; }

.sidebar-left::-webkit-scrollbar,
.sidebar-right::-webkit-scrollbar { width: 3px; }
.sidebar-left::-webkit-scrollbar-thumb { background: rgba(22, 93, 255, 0.15); border-radius: 2px; }
.sidebar-right::-webkit-scrollbar-track { background: #F0F3F8; }
.sidebar-right::-webkit-scrollbar-thumb { background: #d1d9e6; border-radius: 2px; }

/* ============================================================
   BANNER 轮播
   ============================================================ */
.banner { position: relative; width: 100%; min-height: 54vh; overflow: hidden; margin: 0; background: #0a0e1a; }
.carousel-wrapper { width: 100%; min-height: 54vh; touch-action: pan-y; background: #0a0e1a; position: relative; overflow: hidden; }
.carousel-inner {
    width: 100%; min-height: 54vh;
    position: relative; display: flex;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform; background: #0a0e1a;
}
.page-item {
    position: relative;
    width: 100%; min-height: 54vh;
    flex-shrink: 0;
    display: flex; flex-direction: column; justify-content: center;
    padding: 4.6rem 1.75rem 3.5rem;
    overflow: hidden; background: #0a0e1a;
}
.page-item video {
    position: absolute; top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    object-position: center center;
    display: block;
    background: #0a0e1a; z-index: 0; pointer-events: none;
}
.page-content {
    position: relative; z-index: 2;
    display: flex; flex-direction: column; align-items: flex-start; justify-content: center;
    width: 100%; max-width: 600px;
    color: #fff; text-shadow: 0 2px 16px rgba(0, 0, 0, 0.35);
}
.page-content .banner-tag { display: inline-flex; align-items: center; gap: 0.8rem; margin-bottom: 1rem; }
.page-content .tag-text { font-size: 1.15rem; color: #fff; font-weight: 500; }
.page-content .tag-badge {
    background: #f03838; color: #fff;
    padding: 0.3rem 0.8rem; border-radius: 4px;
    font-size: 0.9rem; font-weight: 500;
}
.page-content .tag-badge.orange { background: #f59e0b; }
.page-content .banner-title {
    font-size: 2.2rem; font-weight: 700; color: #fff;
    line-height: 1.25; margin-bottom: 1rem;
}
.page-content .banner-desc {
    font-size: 1rem; color: rgba(255, 255, 255, 0.92);
    line-height: 1.7; margin-bottom: 1.4rem;
}
.page-content .banner-btn {
    background: #3b82f6; color: #fff;
    border: none; padding: 0.5rem 1.5rem;
    font-size: 0.95rem; border-radius: 0;
    font-weight: 500; cursor: pointer;
    position: relative; z-index: 2;
    transition: background 0.2s ease, transform 0.15s ease;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.35);
}
.page-content .banner-btn:active { transform: scale(0.96); }

.banner-dots {
    position: absolute;
    bottom: 2.4rem; left: 0; right: 0;
    z-index: 30;
    display: flex; justify-content: flex-start;
    gap: 0.6rem; padding: 0 1.75rem;
    pointer-events: none;
}
.banner-dots .dot {
    width: 2rem; height: 0.12rem;
    background: rgba(255, 255, 255, 0.35);
    cursor: pointer; pointer-events: auto;
    transition: background 0.3s ease, transform 0.25s ease;
    flex-shrink: 0;
}
.banner-dots .dot.active { background: #3b82f6; transform: scaleY(1.8); }

/* ============================================================
   四个卡片
   ============================================================ */
.feature-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 0.85rem;
    padding: 0 1.25rem; margin-top: -1.6rem; margin-bottom: 2.8rem;
    position: relative; z-index: 5;
}
.feature-card {
    position: relative; overflow: hidden;
    background: #ffffff;
    border: 3px solid #ffffff;
    padding: 0.9rem 1rem;
    display: flex; align-items: center; gap: 0.75rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.2s ease;
}
.feature-card:active { transform: scale(0.97); }
.feature-icon {
    width: 1.75rem; height: 1.75rem;
    flex-shrink: 0; position: relative; z-index: 1;
    object-fit: contain; display: block;
}
.feature-text { font-size: 1.05rem; color: #1f2937; font-weight: 500; position: relative; z-index: 1; }

/* ============================================================
   信息区
   ============================================================ */
.info-section { padding: 0 1.5rem 0.5rem; text-align: center; }
.section-title { font-size: 1.8rem; font-weight: 700; color: #1d1d1f; margin-bottom: 0.8rem; }
.section-desc { font-size: 1rem; color: #667085; line-height: 1.7; }
.section-link { color: #3b82f6; font-size: 1rem; margin-left: 0.25rem; cursor: pointer; font-weight: 500; }

/* ============================================================
   category-box（数万用户安心之选展开列表窗）
   ============================================================ */
.category-box {
    background: transparent;
    margin: 0 1.25rem 2rem;
    padding: 0;
    position: relative;
    z-index: 4;
}
.cat-tabs-wrapper {
    position: relative; display: flex; align-items: center;
    background: #ffffff;
    border-bottom: 1px solid #F0F3F8;
}
.cat-tabs {
    display: flex; flex: 1;
    overflow-x: auto; overflow-y: hidden;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 0; padding-right: 2.6rem;
}
.cat-tabs::-webkit-scrollbar { display: none; }
.cat-tab {
    flex-shrink: 0;
    padding: 0.9rem 1.1rem;
    font-size: 0.95rem; font-weight: 500;
    color: #1d1d1f; cursor: pointer;
    white-space: nowrap;
    background: transparent; border: none;
    font-family: inherit;
    position: relative;
    transition: color 0.2s ease;
}
.cat-tab:hover, .cat-tab.active { color: #165DFF; }
.cat-tab.active::after {
    content: '';
    position: absolute; left: 50%; bottom: 0;
    transform: translateX(-50%);
    width: 60%; height: 2px;
    background: #165DFF; border-radius: 1px;
}
.cat-dropdown-btn {
    position: absolute;
    right: 0; top: 0; bottom: 0;
    width: 2.6rem;
    background: #ffffff;
    border: none; border-left: 1px solid #F0F3F8;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.2s ease;
    z-index: 2;
}
.cat-dropdown-btn:hover { background: #F8F9FE; }
.cat-dropdown-btn svg {
    width: 0.9rem; height: 0.9rem;
    stroke: #4b5563; stroke-width: 2.5; fill: none;
    transition: transform 0.3s ease;
}
.cat-dropdown-btn.open svg { transform: rotate(180deg); }
.cat-dropdown-list {
    position: absolute;
    top: 100%; right: 0;
    min-width: 200px;
    max-height: 0; overflow: hidden;
    background: #ffffff;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
    border: 1px solid rgba(0, 0, 0, 0.04);
    z-index: 10;
    transition: max-height 0.3s ease;
}
.cat-dropdown-list.open { max-height: 400px; overflow-y: auto; }
.cat-dropdown-list .cat-dropdown-item {
    padding: 0.7rem 1.2rem;
    font-size: 0.88rem; color: #1d1d1f;
    cursor: pointer; white-space: nowrap;
    transition: background 0.15s ease, color 0.15s ease;
    border-bottom: 1px solid #F5F6FA;
}
.cat-dropdown-list .cat-dropdown-item:last-child { border-bottom: none; }
.cat-dropdown-list .cat-dropdown-item:hover,
.cat-dropdown-list .cat-dropdown-item.active { background: #F0F4FF; color: #165DFF; }

.cat-panel { display: none; padding: 1rem 0.8rem 1.2rem; background: transparent; }
.cat-panel.active { display: block; }
.cat-panel .cat-sub-list { display: grid; grid-template-columns: 1fr; gap: 0.7rem; }
.cat-panel .cat-sub-item {
    display: flex; align-items: center;
    padding: 1.1rem 1.2rem;
    font-size: 1rem; color: #1f2937;
    text-decoration: none;
    background: #ffffff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06), 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: color 0.2s ease, box-shadow 0.25s ease, transform 0.15s ease;
    cursor: pointer;
    line-height: 1.4;
    min-height: 3.4rem;
}
.cat-panel .cat-sub-item:hover {
    color: #165DFF;
    box-shadow: 0 4px 12px rgba(22, 93, 255, 0.15), 0 6px 20px rgba(22, 93, 255, 0.08);
    transform: translateY(-2px);
}
.cat-panel .cat-sub-item.hidden-sub { display: none; }
.cat-show-all {
    display: block; margin-top: 1rem;
    padding: 0.8rem 0;
    font-size: 1rem; color: #165DFF; font-weight: 500;
    text-align: center; cursor: pointer;
    background: transparent; border: none;
    width: 100%; font-family: inherit;
    transition: opacity 0.2s ease;
}
.cat-show-all:hover { opacity: 0.75; }
.cat-show-all.hide { display: none; }

/* ============================================================
   solution-industry（服务千行百业）
   ============================================================ */
.solution-industry {
    position: relative;
    width: 100%;
    background-image: url('/themes/web/smyune/assets/image/qyjzmb.jpg');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    background-color: #f2f7ff;
    padding: 36px 0 46px;
    margin: 0;
}
.solution-industry::before {
    content: ''; position: absolute; inset: 0;
    background: rgba(255, 255, 255, 0.55);
    pointer-events: none; z-index: 0;
}
.solution-industry > * { position: relative; z-index: 1; }
.si-head { max-width: 1180px; margin: 0 auto 22px; padding: 0 14px; text-align: center; }
.si-title { font-size: 26px; font-weight: 800; color: #17233d; margin: 0 0 10px; letter-spacing: 0.5px; }
.si-subtitle { font-size: 14px; color: #4e5969; line-height: 1.7; max-width: 720px; margin: 0 auto; }
.si-tabs-wrap { max-width: 1180px; margin: 0 auto 18px; padding: 0 3px; position: relative; }
.si-tabs {
    display: flex; gap: 6px;
    overflow-x: auto; overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    scroll-behavior: smooth;
}
.si-tabs::-webkit-scrollbar { display: none; }
.si-tab {
    flex-shrink: 0;
    padding: 10px 14px;
    font-size: 14px; font-weight: 600;
    color: #17233d;
    background: #ffffff;
    border: 1px solid #e8ecf2;
    cursor: pointer; white-space: nowrap;
    position: relative;
    transition: color .2s ease, border-color .2s ease;
}
.si-tab:hover, .si-tab.active { color: #0e62f6; border-color: #0e62f6; }
.si-tab.active::after {
    content: ''; position: absolute;
    left: 50%; bottom: -1px;
    transform: translateX(-50%);
    width: 70%; height: 2px;
    background: #0e62f6; border-radius: 1px;
}
.si-panels { max-width: 1180px; margin: 0 auto; padding: 0 3px; }
.si-panel { display: none; background: #ffffff; border: 1px solid #e8ecf2; overflow: hidden; margin-bottom: 8px; }
.si-panel.active { display: block; }
.si-panel-media {
    position: relative;
    width: 100%; min-height: 190px;
    background-size: cover; background-position: center center; background-repeat: no-repeat;
    background-color: #17233d;
    padding: 22px 18px;
    display: flex; flex-direction: column; justify-content: center;
}
.si-panel-media::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(90deg, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.25) 60%, rgba(0,0,0,0.05) 100%);
    z-index: 0; pointer-events: none;
}
.si-panel-media-inner { position: relative; z-index: 1; color: #fff; max-width: 720px; }
.si-panel-title { font-size: 22px; font-weight: 800; margin: 0 0 8px; color: #fff; letter-spacing: 0.5px; }
.si-panel-sub { font-size: 13px; color: rgba(255, 255, 255, 0.92); line-height: 1.75; margin: 0; }
.si-panel-body { padding: 18px 16px 18px; }
.si-features { list-style: none; padding: 0; margin: 0 0 16px; }
.si-features li {
    display: flex; align-items: center; gap: 10px;
    padding: 11px 12px;
    font-size: 14px; color: #1f2937;
    background: #f7faff;
    border: 1px solid #e8ecf2;
    margin-bottom: 10px;
    transition: background .2s ease, border-color .2s ease, color .2s ease;
    line-height: 1.5;
}
.si-features li:last-child { margin-bottom: 0; }
.si-features li:hover { background: #eef4ff; border-color: #b9d2ff; color: #0e62f6; }
.si-features li .si-check {
    width: 18px; height: 18px;
    flex-shrink: 0; border-radius: 50%;
    background: #0e62f6;
    display: flex; align-items: center; justify-content: center;
    color: #fff;
}
.si-features li .si-check svg { width: 11px; height: 11px; stroke: #fff; stroke-width: 3; fill: none; }
.si-cta {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 12px 22px;
    background: #0e62f6; color: #fff !important;
    font-size: 15px; font-weight: 700;
    text-decoration: none;
    transition: background .2s ease, transform .15s ease;
    border: 0; cursor: pointer;
}
.si-cta:hover { background: #0a4fd6; }
.si-cta:active { transform: scale(0.97); }

/* ============================================================
   m-news-section（掌握平台动态 + 网站公告 #newsList 修复）
   ============================================================ */
.m-news-section { width: 100%; background: #F8F9FE; padding: 2.5rem 0 3rem; }
.comp_container { width: 100%; padding: 0 1.25rem; }
.comp_container_auto { max-width: 1200px; margin: 0 auto; }
.comprehensive-container { width: 100%; }
.yst-title-container { text-align: center; margin-bottom: 2rem; }
.yst-title { font-size: 1.8rem; font-weight: 700; color: #1d1d1f; margin: 0 0 0.5rem; line-height: 1.3; }
.yst-desc { font-size: 0.95rem; color: #667085; display: block; }
.comprehensive-news-container { display: flex; flex-direction: column; gap: 1.5rem; }
.comprehensive-news-left {
    background: #ffffff;
    overflow: hidden; position: relative;
    min-height: 280px;
    background-size: cover; background-position: center;
}
.comprehensive-news-left-inner {
    position: relative; z-index: 2;
    padding: 2rem 1.8rem;
    display: flex; flex-direction: column; justify-content: center;
    min-height: 280px;
    background: linear-gradient(90deg, rgba(255,255,255,0.88) 0%, rgba(255,255,255,0.65) 60%, rgba(255,255,255,0.25) 100%);
}
.comprehensive-news-left-inner-title {
    font-size: 1.4rem; font-weight: 700; color: #000000;
    margin-bottom: 0.8rem; display: block;
}
.comprehensive-news-left-inner-describe {
    font-size: 0.85rem; color: #000000;
    line-height: 1.8; display: block;
    margin-bottom: 1.2rem; max-width: 700px; font-weight: 400;
}
.comprehensive-news-left-inner-button a {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: #165DFF; color: #fff;
    font-size: 0.85rem; font-weight: 500;
    text-decoration: none; border-radius: 2px;
    transition: background 0.2s ease;
}
.comprehensive-news-left-inner-button a:hover { background: #0f4cd6; }
.comprehensive-news-right {
    background: #ffffff;
    padding: 1.2rem 1.2rem 0.8rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.04);
    min-width: 0;
}
.news-right-row { display: flex; flex-direction: column; gap: 0.2rem; min-width: 0; }
.m-news-card-header {
    display: flex; align-items: center; justify-content: space-between;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid #F0F3F8;
    margin-bottom: 0.4rem;
}
.m-news-card-header-title { font-size: 1.1rem; font-weight: 700; color: #1d1d1f; }
.m-news-card-header-more { font-size: 0.85rem; color: #165DFF; text-decoration: none; }
.m-news-card-header-more:hover { opacity: 0.7; }

/* ★ 修复：PC 端「网站公告」#newsList 排列 */
.comprehensive-news-right #newsList {
    display: block !important;
    width: 100% !important;
    min-width: 0 !important;
    overflow: hidden;
    box-sizing: border-box;
}
.comprehensive-news-right #newsList > * {
    display: block !important;
    float: none !important;
    position: static !important;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    flex: none !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-break: break-word;
    writing-mode: horizontal-tb !important;
    text-orientation: mixed !important;
}
.comprehensive-news-right #newsList > a,
.comprehensive-news-right #newsList .news-item,
.comprehensive-news-right #newsList .news-article-item,
.comprehensive-news-right #newsList li {
    padding: 0.7rem 0.2rem !important;
    border-bottom: 1px solid #F5F6FA !important;
    text-decoration: none !important;
    color: inherit;
    font-size: 0.9rem !important;
    line-height: 1.5 !important;
    transition: background 0.2s ease, color 0.2s ease;
    overflow: hidden;
    text-overflow: ellipsis;
}
.comprehensive-news-right #newsList > a:last-child,
.comprehensive-news-right #newsList .news-item:last-child,
.comprehensive-news-right #newsList .news-article-item:last-child,
.comprehensive-news-right #newsList li:last-child {
    border-bottom: none !important;
}
.comprehensive-news-right #newsList > a:hover,
.comprehensive-news-right #newsList .news-item:hover,
.comprehensive-news-right #newsList .news-article-item:hover,
.comprehensive-news-right #newsList li:hover {
    background: #F8F9FE;
    color: #165DFF;
}
.comprehensive-news-right #newsList .news-item .news-date,
.comprehensive-news-right #newsList .news-item .date,
.comprehensive-news-right #newsList .news-article-item .news-date {
    display: inline-block !important;
    margin-right: 0.5rem;
    color: #9ca3af;
    font-size: 0.78rem;
}

/* 加载中 */
.comprehensive-news-right #newsList .news-loading {
    display: flex !important;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 2rem 1rem;
    color: #667085;
    font-size: 0.85rem;
}
.comprehensive-news-right #newsList .news-spinner {
    width: 1.2rem;
    height: 1.2rem;
    border: 2px solid #e5e7eb;
    border-top-color: #165DFF;
    border-radius: 50%;
    animation: newsSpin 0.8s linear infinite;
}
@keyframes newsSpin { to { transform: rotate(360deg); } }

/* 兼容旧静态公告样式 */
.news-article-item {
    display: block; text-decoration: none; color: inherit;
    padding: 0.9rem 0.2rem;
    border-bottom: 1px solid #F5F6FA;
    transition: background 0.2s ease;
}
.news-article-item:last-child { border-bottom: none; }
.news-article-item:hover { background: #F8F9FE; }
.news-article-item-head {
    display: flex; align-items: flex-start; justify-content: space-between;
    gap: 0.8rem; margin-bottom: 0.2rem;
}
.news-article-item-title { display: flex; align-items: center; gap: 0.5rem; flex: 1; min-width: 0; }
.news-article-item-title span {
    font-size: 0.7rem; font-weight: 600;
    color: #165DFF; background: #EEF4FF;
    padding: 0.1rem 0.5rem; border-radius: 2px;
    white-space: nowrap; flex-shrink: 0;
}
.news-article-item-title p {
    font-size: 0.95rem; font-weight: 500; color: #1d1d1f;
    margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.news-article-item-date { font-size: 0.75rem; color: #9ca3af; white-space: nowrap; flex-shrink: 0; padding-top: 0.1rem; }
.news-article-item-desc {
    display: flex; align-items: center; justify-content: space-between;
    gap: 0.8rem; font-size: 0.82rem; color: #667085; line-height: 1.6;
    padding-left: 0.1rem;
}
.news-article-item-desc span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.news-article-item-desc i { font-style: normal; color: #165DFF; font-size: 0.8rem; flex-shrink: 0; opacity: 0.6; }

/* ============================================================
   合作伙伴（居中修复）
   ============================================================ */
.partner-section {
    padding: 2.5rem 1.5rem 3rem;
    background: #f5f7fa;
    text-align: center;
    overflow: hidden;
}
.partner-title { font-size: 1.6rem; font-weight: 700; color: #1d1d1f; margin-bottom: 0.6rem; }
.partner-desc {
    font-size: 0.95rem; color: #667085; line-height: 1.7;
    max-width: 600px; margin: 0 auto 1.8rem; padding: 0 1rem;
}
.partner-rows {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    width: 100%;
}
.partner-row-wrapper {
    width: 100%;
    overflow: visible;
    position: relative;
}
.partner-row-wrapper::before,
.partner-row-wrapper::after {
    display: none !important;
}
.partner-row-track {
    display: flex !important;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    margin: 0 auto;
}
.partner-logo {
    background: #ffffff;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 0.8rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    flex-shrink: 0;
}
.partner-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
}

/* ============================================================
   产品大分区展示模块
   ============================================================ */
.product-zone-section { padding: 2.5rem 1.5rem 2rem; background: #ffffff; }
.product-zone-inner { max-width: 1200px; margin: 0 auto; }
.product-zone-title { font-size: 1.6rem; font-weight: 700; color: #1d1d1f; text-align: center; margin-bottom: 0.6rem; }
.product-zone-desc { font-size: 0.95rem; color: #667085; line-height: 1.7; text-align: center; margin-bottom: 1.8rem; padding: 0 0.5rem; }
.product-zone-link { color: #3b82f6; font-weight: 500; cursor: pointer; margin-left: 0.25rem; transition: color 0.2s ease; }
.product-zone-link:hover { color: #1a4cff; }

.zone-nav-wrapper {
    position: relative; margin-bottom: 1.2rem;
    background: #ffffff;
    border-radius: 4px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.04);
    display: flex; align-items: center; overflow: visible;
}
.zone-nav-scroll {
    display: flex; overflow-x: auto; overflow-y: hidden;
    scroll-behavior: smooth; -webkit-overflow-scrolling: touch;
    scrollbar-width: none; flex: 1;
    padding: 0 0.5rem;
}
.zone-nav-scroll::-webkit-scrollbar { display: none; }
.zone-nav-item {
    flex-shrink: 0;
    padding: 0.85rem 1.1rem;
    font-size: 0.95rem; font-weight: 500;
    color: #1d1d1f; cursor: pointer;
    position: relative; white-space: nowrap;
    border: none; background: transparent;
    font-family: inherit;
    transition: color 0.2s ease, background 0.2s ease;
    letter-spacing: 0.01em;
}
.zone-nav-item:hover { color: #3b82f6; background: rgba(59, 130, 246, 0.04); }
.zone-nav-item.active { color: #3b82f6; font-weight: 600; }
.zone-nav-item.active::after {
    content: ''; position: absolute;
    bottom: 0; left: 0.8rem; right: 0.8rem;
    height: 2px; background: #3b82f6; border-radius: 1px;
}
.zone-nav-arrow {
    width: 2.5rem; height: 2.5rem;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; flex-shrink: 0;
    color: #667085;
    transition: color 0.2s ease, transform 0.2s ease;
    border-left: 1px solid rgba(0, 0, 0, 0.04);
}
.zone-nav-arrow:hover { color: #3b82f6; }
.zone-nav-arrow svg { width: 1.1rem; height: 1.1rem; }
.zone-nav-arrow.open { transform: rotate(180deg); }
.zone-dropdown {
    position: absolute;
    top: calc(100% + 0.4rem); right: 0;
    min-width: 200px;
    background: #ffffff; border-radius: 6px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.10);
    border: 1px solid rgba(0, 0, 0, 0.04);
    padding: 0.4rem 0;
    opacity: 0; visibility: hidden;
    transform: translateY(-4px) scale(0.98);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    z-index: 100; pointer-events: none;
}
.zone-dropdown.open { opacity: 1; visibility: visible; transform: translateY(0) scale(1); pointer-events: auto; }
.zone-dropdown-item {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem; color: #1d1d1f;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
    display: flex; align-items: center; justify-content: space-between;
    border-left: 3px solid transparent;
}
.zone-dropdown-item:hover { background: #f5f7ff; color: #1a4cff; border-left-color: #1a4cff; }
.zone-dropdown-item.active { color: #3b82f6; font-weight: 600; background: #f5f7ff; }

.zone-cards-wrapper { display: flex; flex-direction: column; gap: 0.85rem; }
.zone-card {
    background: #ffffff; border-radius: 4px;
    padding: 1.2rem 1.1rem;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.04);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.25s ease, border-color 0.2s ease, opacity 0.3s ease;
    position: relative; overflow: hidden;
}
.zone-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.07);
    border-color: rgba(59, 130, 246, 0.15);
}
.zone-card:active { transform: scale(0.98); }
.zone-card-header { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.6rem; }
.zone-card-title { font-size: 1.1rem; font-weight: 600; color: #1d1d1f; }
.zone-card-tag {
    display: inline-flex; align-items: center;
    padding: 0.15rem 0.5rem; border-radius: 2px;
    font-size: 0.75rem; font-weight: 500; line-height: 1.4; flex-shrink: 0;
}
.zone-card-tag.hot { background: rgba(245, 158, 11, 0.1); color: #d97706; border: 1px solid rgba(245, 158, 11, 0.2); }
.zone-card-tag.gaofang { background: rgba(239, 68, 68, 0.08); color: #dc2626; border: 1px solid rgba(239, 68, 68, 0.15); }
.zone-card-tag.new { background: rgba(59, 130, 246, 0.08); color: #2563eb; border: 1px solid rgba(59, 130, 246, 0.15); }
.zone-card-desc { font-size: 0.9rem; color: #667085; line-height: 1.7; }
.zone-view-all {
    display: flex; align-items: center; justify-content: center; gap: 0.3rem;
    margin-top: 1.5rem; padding: 0.8rem;
    color: #3b82f6; font-size: 0.95rem; font-weight: 500;
    cursor: pointer;
    transition: color 0.2s ease;
}
.zone-view-all:hover { color: #1a4cff; }
.zone-view-all svg { width: 1rem; height: 1rem; transition: transform 0.2s ease; }
.zone-view-all:hover svg { transform: translateY(2px); }
.zone-view-all.expanded svg { transform: rotate(180deg); }
.zone-view-all.expanded:hover svg { transform: rotate(180deg) translateY(-2px); }
.zone-card.hidden { display: none !important; }
.zone-card.fade-in { animation: zoneCardFadeIn 0.3s ease forwards; }
@keyframes zoneCardFadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.zone-loading {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 0.8rem; padding: 3rem 1rem;
    color: #667085; font-size: 0.9rem;
}
.zone-loading-spinner {
    width: 1.5rem; height: 1.5rem;
    border: 2px solid #e5e7eb;
    border-top-color: #3b82f6;
    border-radius: 50%;
    animation: zoneSpin 0.8s linear infinite;
}
@keyframes zoneSpin { to { transform: rotate(360deg); } }
.zone-empty { text-align: center; padding: 3rem 1rem; color: #667085; font-size: 0.95rem; }

/* ============================================================
   响应式 - PC 端 (>=1024px)
   ============================================================ */
@media (min-width: 1024px) {
    .menu-btn { display: none !important; }
    .sidebar-overlay,
    .sidebar { display: none !important; }
    .desktop-nav { display: flex !important; }
    .pc-user-actions { display: flex !important; }
    .user-avatar { display: none !important; }

    .header { height: 3.2rem; padding: 0.4rem 2rem; }
    .logo img { height: 1.7rem; max-height: 1.7rem; }
    body { padding-top: 0; padding-bottom: 0; }

    /* ★ 视频区域再缩小一点：40vh（原 44vh） */
    .banner,
    .carousel-wrapper,
    .carousel-inner,
    .page-item { min-height: 40vh; }
    /* 底部留白稍微加大，让内容居中上移，同时给指示条腾出空间 */
    .page-item { padding: 3rem 2rem 3.2rem; }

    .page-content {
        max-width: 720px; margin: 0 auto;
        padding-left: 200px;
        align-items: flex-start; width: 100%;
    }
    .banner .page-content { padding-left: 200px; }

    .banner-nav {
        position: absolute;
        left: 12rem; top: 50%;
        transform: translateY(-50%);
        z-index: 50;
        display: flex; flex-direction: column; gap: 0.8rem;
        align-items: flex-start; pointer-events: none;
    }
    .banner-nav .nav-btn {
        background: transparent; border: none;
        color: #1d1d1f; font-size: 0.95rem; font-weight: 500;
        cursor: pointer;
        padding: 0.4rem 1rem 0.4rem 0.4rem;
        text-align: left; position: relative;
        transition: all 0.35s ease;
        pointer-events: auto; letter-spacing: 0.02em;
        border-right: 2px solid transparent;
        white-space: nowrap;
    }
    .banner-nav .nav-btn .btn-text { display: block; transition: color 0.3s ease, opacity 0.3s ease; opacity: 0.5; color: #1d1d1f; }
    .banner-nav .nav-btn:hover .btn-text { opacity: 0.8; }
    .banner-nav .nav-btn.active .btn-text { opacity: 1; color: #1d1d1f; font-weight: 600; }
    .banner-nav .nav-btn.active { border-right-color: #3b82f6; }
    .banner-nav .nav-btn::after {
        content: ''; position: absolute;
        right: -2px; top: 20%; bottom: 20%;
        width: 2px; background: #3b82f6;
        opacity: 0;
        transition: opacity 0.35s ease, top 0.35s ease, bottom 0.35s ease;
        border-radius: 1px;
    }
    .banner-nav .nav-btn.active::after { opacity: 1; top: 10%; bottom: 10%; }

    /* ★ 指示条上移：bottom 1.6rem → 3rem */
    .banner-dots { bottom: 3rem; padding: 0 2rem; left: 8rem; }
    .banner-dots .dot { width: 2.4rem; height: 0.14rem; }
    .page-content .banner-btn { padding: 0.6rem 2rem; font-size: 1rem; }

    .feature-grid {
        grid-template-columns: 1fr 1fr 1fr 1fr;
        gap: 1.2rem; padding: 0 2rem;
        max-width: 1200px; margin-left: auto; margin-right: auto;
        margin-top: -2.2rem;
    }
    .feature-card {
        padding: 1rem 1.2rem;
        background: rgba(255, 255, 255, 0.72);
        backdrop-filter: blur(4px);
        border: 2px solid rgba(255, 255, 255, 0.6);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
        transition: transform 0.25s ease, box-shadow 0.3s ease, background 0.3s ease;
    }
    .feature-card:hover {
        background: rgba(255, 255, 255, 0.92);
        transform: translateY(-2px);
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    }
    .feature-text { font-size: 1rem; }

    .info-section { max-width: 800px; margin: 0 auto; padding: 0 2rem 0.5rem; }

    .category-box { margin: 0 auto 2.5rem; max-width: 1200px; padding: 0 2rem; }
    .cat-panel .cat-sub-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
    .cat-panel .cat-sub-item { padding: 1.3rem 1.3rem; font-size: 1.05rem; min-height: 4.2rem; }

    .product-zone-section { padding: 3rem 2rem 2.5rem; }
    .product-zone-title { font-size: 1.8rem; }
    .product-zone-desc { font-size: 1rem; margin-bottom: 2.2rem; }
    .zone-nav-wrapper { margin-bottom: 1.5rem; border-radius: 6px; }
    .zone-nav-scroll { overflow-x: visible; padding: 0 0.8rem; }
    .zone-nav-item { padding: 1rem 1.5rem; font-size: 1rem; }
    .zone-nav-arrow { display: none; }
    .zone-dropdown { display: none !important; }
    .zone-cards-wrapper { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
    .zone-card { padding: 1.5rem 1.3rem; }
    .zone-card-title { font-size: 1.15rem; }
    .zone-card-desc { font-size: 0.95rem; }

    .solution-industry { padding: 52px 0 64px; }
    .si-title { font-size: 32px; }
    .si-subtitle { font-size: 15px; }
    .si-tabs-wrap { padding: 0 14px; }
    .si-tab { padding: 12px 20px; font-size: 14px; }
    .si-panels { padding: 0 14px; }
    .si-panel { display: none; }
    .si-panel.active { display: grid; grid-template-columns: 1.05fr 1fr; align-items: stretch; }
    .si-panel-media { min-height: 420px; padding: 36px 34px; }
    .si-panel-title { font-size: 26px; }
    .si-panel-sub { font-size: 14px; }
    .si-panel-body { padding: 36px 34px; display: flex; flex-direction: column; justify-content: center; }
    .si-features li { font-size: 15px; padding: 13px 14px; }
    .si-cta { padding: 13px 26px; font-size: 15px; }

    .m-news-section { padding: 3.5rem 0 4rem; }
    .comp_container { padding: 0 2rem; }
    .comprehensive-news-container { flex-direction: row; gap: 2rem; align-items: stretch; }
    .comprehensive-news-left { flex: 0.85; min-height: 300px; max-height: 360px; border-radius: 4px; }
    .comprehensive-news-left-inner { min-height: 300px; max-height: 360px; padding: 1.8rem; justify-content: center; }
    .comprehensive-news-left-inner-title { font-size: clamp(1rem, 1.4vw, 1.3rem); margin-bottom: 0.6rem; }
    .comprehensive-news-left-inner-describe {
        font-size: clamp(0.68rem, 0.75vw, 0.82rem);
        line-height: 1.7; margin-bottom: 1rem;
        display: -webkit-box; -webkit-line-clamp: 6; -webkit-box-orient: vertical; overflow: hidden;
    }
    .comprehensive-news-right {
        flex: 1.15; padding: 1.2rem 1.5rem 1rem; border-radius: 4px;
        display: flex; flex-direction: column;
        max-height: 360px; overflow: hidden;
    }
    .news-right-row { flex: 1; overflow-y: auto; display: flex; flex-direction: column; }

    .comprehensive-news-right #newsList > a,
    .comprehensive-news-right #newsList .news-item,
    .comprehensive-news-right #newsList .news-article-item,
    .comprehensive-news-right #newsList li {
        padding: 0.55rem 0.2rem !important;
        font-size: 0.8rem !important;
    }

    .partner-section { padding: 3rem 2rem 3.5rem; text-align: center; }
    .partner-title { font-size: 1.8rem; }
    .partner-desc { font-size: 1rem; margin-bottom: 2.2rem; }
    .partner-rows {
        display: flex; flex-direction: column;
        align-items: center; gap: 1rem;
        width: 100%; max-width: 1100px; margin: 0 auto;
    }
    .partner-row-wrapper { width: 100%; max-width: 1100px; margin: 0 auto; }
    .partner-row-track { gap: 1rem; }
    .partner-logo { width: 150px; height: 80px; padding: 0.8rem 1rem; }

    .back-to-top { bottom: 2.5rem; right: 2.5rem; width: 3rem; height: 3rem; }
    .tab-bar { display: none !important; }
}

/* ============================================================
   响应式 - 平板端 (768px - 1023px)
   ============================================================ */
@media (min-width: 768px) and (max-width: 1023px) {
    .sidebar-left { width: 40%; }
    .sidebar-right { width: 60%; padding: 1.5rem 1.2rem 1.5rem; }
    .sidebar-menu .menu-item { font-size: 0.95rem; padding: 0.9rem 0.9rem; }

    .feature-grid { grid-template-columns: 1fr 1fr; gap: 0.85rem; padding: 0 1.5rem; }

    .product-zone-section { padding: 2.2rem 1.5rem 1.8rem; }
    .zone-cards-wrapper { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .zone-nav-arrow { display: none; }
    .zone-dropdown { display: none !important; }

    .partner-section { text-align: center; }
    .partner-rows {
        display: flex; flex-direction: column;
        align-items: center; gap: 0.8rem;
        max-width: 900px; margin: 0 auto;
    }
    .partner-row-wrapper { width: 100%; overflow: visible; }
    .partner-row-track {
        display: flex !important; flex-wrap: wrap;
        justify-content: center; align-items: center;
        gap: 0.75rem; width: 100%; margin: 0 auto;
    }
    .partner-logo { width: 150px; height: 70px; flex-shrink: 0; }
}

/* ============================================================
   响应式 - 移动端 (<=767px)
   ============================================================ */
@media (max-width: 767px) {
    .sidebar-left { width: 45%; padding: 0; }
    .sidebar-right { width: 55%; padding: 1.2rem 0.8rem 1rem; }
    .sidebar-menu .menu-item { font-size: 0.9rem; padding: 1rem 0.9rem; }

    .banner,
    .carousel-wrapper,
    .carousel-inner,
    .page-item { min-height: 50vh; }
    .page-content .banner-title { font-size: 1.8rem; }
    .page-content .tag-text { font-size: 1rem; }
    .banner-dots .dot { width: 1.6rem; height: 0.1rem; }
    .banner-dots { padding: 0 1.2rem; bottom: 2rem; }

    .category-box { margin: 0 1rem 1.5rem; }
    .cat-tab { font-size: 0.88rem; padding: 0.8rem 0.9rem; }
    .cat-panel { padding: 0.8rem 0.2rem 1rem; }
    .cat-panel .cat-sub-list { grid-template-columns: 1fr; gap: 0.6rem; }
    .cat-panel .cat-sub-item { padding: 1rem 1rem; font-size: 0.98rem; min-height: 3.2rem; }

    .product-zone-section { padding: 2rem 1rem 1.5rem; }
    .product-zone-title { font-size: 1.4rem; }
    .product-zone-desc { font-size: 0.85rem; margin-bottom: 1.4rem; }
    .zone-nav-item { padding: 0.7rem 0.9rem; font-size: 0.9rem; }
    .zone-card { padding: 1rem 0.9rem; }
    .zone-card-title { font-size: 1rem; }
    .zone-card-desc { font-size: 0.85rem; }

    .m-news-section { padding: 1.8rem 0 2.5rem; }
    .comp_container { padding: 0 1rem; }
    .yst-title { font-size: 1.4rem; }
    .yst-desc { font-size: 0.85rem; }
    .comprehensive-news-left { min-height: 220px; }
    .comprehensive-news-left-inner { padding: 1.5rem 1.2rem; min-height: 220px; }
    .comprehensive-news-left-inner-title { font-size: 1.15rem; }
    .comprehensive-news-left-inner-describe { font-size: 0.78rem; line-height: 1.7; margin-bottom: 1rem; }
    .comprehensive-news-right { padding: 1rem 0.9rem 0.6rem; }
    .m-news-card-header-title { font-size: 1rem; }

    .comprehensive-news-right #newsList > a,
    .comprehensive-news-right #newsList .news-item,
    .comprehensive-news-right #newsList .news-article-item,
    .comprehensive-news-right #newsList li {
        padding: 0.75rem 0.2rem !important;
        font-size: 0.85rem !important;
    }

    .partner-section { padding: 2rem 1rem 2.5rem; text-align: center; }
    .partner-title { font-size: 1.4rem; }
    .partner-desc { font-size: 0.85rem; margin-bottom: 1.2rem; }
    .partner-rows {
        display: flex; flex-direction: column;
        align-items: center; gap: 0.6rem;
    }
    .partner-row-wrapper { width: 100%; overflow: visible; }
    .partner-row-track {
        display: flex !important; flex-wrap: wrap;
        justify-content: center; align-items: center;
        gap: 0.6rem; width: 100%;
    }
    .partner-logo {
        width: calc((100% - 1.2rem) / 3);
        max-width: 160px; min-width: 80px;
        height: 60px; flex-shrink: 0;
        padding: 0.5rem 0.6rem;
    }

    .back-to-top { bottom: 5rem; right: 1rem; width: 2.5rem; height: 2.5rem; }
    .back-to-top svg { width: 1.2rem; height: 1.2rem; }

    .header { height: 3.8rem; padding: 0.7rem 1rem; }
    .sidebar-overlay { top: 3.8rem; height: calc(100vh - 3.8rem); }
    .sidebar { top: 3.8rem; height: calc(100vh - 3.8rem); }

    .banner-nav { display: none !important; }

    .tab-bar {
        min-height: 3.2rem;
        padding: 0.5rem 0 calc(0.6rem + env(safe-area-inset-bottom));
    }
    .tab-item { font-size: 0.75rem; }
    .tab-icon { width: 1.3rem; height: 1.3rem; }
}

@media (max-width: 380px) {
    .header { height: 3.5rem; padding: 0.6rem 0.8rem; }
    .sidebar-overlay { top: 3.5rem; height: calc(100vh - 3.5rem); }
    .sidebar { top: 3.5rem; height: calc(100vh - 3.5rem); }
}

/* ============================================================
   回到顶部
   ============================================================ */
.back-to-top {
    position: fixed;
    bottom: 5.5rem; right: 1.2rem;
    z-index: 900;
    width: 2.8rem; height: 2.8rem;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 4px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.3s ease;
    opacity: 0; visibility: hidden;
    transform: translateY(12px);
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover {
    background: #f5f7ff;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.12);
    transform: translateY(-2px);
}
.back-to-top:active { transform: scale(0.92); }
.back-to-top svg { width: 1.4rem; height: 1.4rem; stroke: #1d1d1f; stroke-width: 2; fill: none; }

/* ============================================================
   底部 Tab
   ============================================================ */
.tab-bar {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: #ffffff;
    display: flex; justify-content: space-around; align-items: center;
    padding: 0.6rem 0 calc(0.7rem + env(safe-area-inset-bottom));
    border-top: 1px solid #f0f3f8;
    z-index: 100;
    min-height: 3.8rem;
}
.tab-item {
    display: flex; flex-direction: column; align-items: center; gap: 0.2rem;
    color: #2b2b2b; font-size: 0.85rem;
    cursor: pointer; transition: color 0.2s;
    padding: 0.1rem 0.4rem;
}
.tab-item.active { color: #000000; }
.tab-icon { width: 1.5rem; height: 1.5rem; stroke: currentColor; transition: stroke 0.2s; }
.tab-item.active .tab-icon { stroke: #000000; }

/* ============================================================
   减少动效
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    .carousel-inner, .header, .sidebar, .sidebar-overlay, .menu-btn span,
    .desktop-nav .dropdown, .feature-card, .solution-industry, .partner-row-track,
    .back-to-top, .zone-card, .zone-nav-item, .zone-loading-spinner,
    .product-accordion .acc-body, .cat-tabs, .info-section.jelly {
        transition: none !important;
        animation: none !important;
    }
    .solution-industry .si-panel,
    .zone-card:hover,
    .feature-card:hover { transform: none !important; }
}