/* ===== EZTMC Pro 主样式 ===== */

/* ===== 顶部导航（参考 solution-html 白色导航格式） ===== */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.97);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: all .3s;
}
.site-header.scrolled {
    background: #fff;
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}
.header-inner {
    display: flex;
    align-items: center;
    gap: 16px;
    height: 72px;
}
.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary);
    flex-shrink: 0;
}
.site-logo img { height: 52px; width: auto; display: block; }
.logo-slogan {
    font-size: 12px;
    color: var(--text-light);
    line-height: 1.45;
    padding-left: 10px;
    margin-left: 4px;
    border-left: 1px solid var(--border);
    white-space: nowrap;
}
/* 品牌名已包含在 logo 图中，隐藏文字避免与 10 个一级菜单争抢宽度 */
.logo-text {
    display: none;
}
.main-nav {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    justify-content: center;
}
/* 导航配色对齐落地页（#0055a5 / #0088cc） */
.site-header {
    --nav-accent: #0055a5;
    --nav-accent2: #0088cc;
    --nav-accent-light: #e8f4fd;
}
.main-nav .nav-list {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: center;
    list-style: none;
    gap: 22px;
}
.main-nav .nav-list > li { position: relative; flex-shrink: 0; }
.main-nav .nav-list > li > a {
    display: flex;
    align-items: center;
    gap: 4px;
    position: relative;
    padding: 8px 0;
    color: var(--text-dark);
    font-size: 15px;
    font-weight: 500;
    white-space: nowrap;
    transition: color .2s;
}
/* 下划线挂在 li 上，给 a 右侧的小三角留出位置 */
.main-nav .nav-list > li::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--nav-accent);
    transition: width .3s ease;
}
.main-nav .nav-list > li:hover::after,
.main-nav .nav-list > li.current-menu-item::after { width: 100%; }
/* 带下拉的栏目与落地页一致：不画下划线，只用三角符号与下拉面板反馈 */
.main-nav .nav-list > li.menu-item-has-children::after { display: none; }
/* 三角与下拉面板之间 8px 的悬停过渡区，避免鼠标经过时闪断 */
.main-nav .nav-list > li.menu-item-has-children::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -8px;
    height: 8px;
}
/* 有下拉的菜单项右侧小三角，悬停旋转 180° */
.main-nav .dropdown-arrow {
    font-size: 11px;
    line-height: 1;
    color: currentColor;
    transition: transform .3s;
}
.main-nav .nav-list > li.menu-item-has-children:hover .dropdown-arrow { transform: rotate(180deg); }
/* 最后一项「更多」做成渐变按钮 */
.main-nav .nav-list > li:last-child { margin-left: 4px; }
.main-nav .nav-list > li:last-child > a {
    padding: 10px 20px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--nav-accent), var(--nav-accent2));
    color: #fff;
    font-weight: 600;
}
.main-nav .nav-list > li:last-child::after { display: none; }
.main-nav .nav-list > li:last-child > a:hover {
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0,85,165,0.35);
}
.main-nav .sub-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    min-width: 220px;
    background: #fff;
    list-style: none;
    padding: 8px 0;
    border-radius: var(--radius);
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(-50%) translateY(10px);
    transition: all .25s ease;
    z-index: 1001;
}
.main-nav .sub-menu::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 0; right: 0;
    height: 8px;
}
.main-nav .nav-list > li:hover .sub-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}
.main-nav .sub-menu a {
    display: block;
    padding: 10px 20px;
    color: var(--text-dark);
    font-size: 14px;
    font-weight: 400;
    white-space: nowrap;
}
.main-nav .sub-menu a:hover { background: var(--nav-accent-light); color: var(--nav-accent); }
.header-phone {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #d32f2f;
    font-weight: 700;
    font-size: 17px;
    flex-shrink: 0;
    white-space: nowrap;
}
.header-phone .phone-icon { color: #d32f2f; font-size: 16px; }
.header-phone a { color: #d32f2f; }
.header-phone a:hover { color: #b71c1c; }
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}
.mobile-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 998;
}
.mobile-nav-overlay.active { display: block; }
.mobile-nav {
    position: fixed;
    top: 0; right: -320px;
    width: 300px;
    height: 100vh;
    background: var(--primary);
    z-index: 999;
    padding: 80px 24px 24px;
    overflow-y: auto;
    transition: right .3s;
}
.mobile-nav.active { right: 0; }
.mobile-nav-list { list-style: none; }
.mobile-nav-list > li > a {
    display: block;
    padding: 14px 0;
    color: #fff;
    font-size: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
/* 抽屉菜单里的二级栏目（「更多」中的关于我们/视频中心/联系我们） */
.mobile-nav-list .sub-menu { list-style: none; padding: 0 0 6px 16px; }
.mobile-nav-list .sub-menu a {
    display: block;
    padding: 10px 0;
    color: rgba(255,255,255,0.72);
    font-size: 14px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.mobile-phone {
    margin-top: 24px;
    padding: 16px;
    background: var(--accent);
    border-radius: var(--radius);
    text-align: center;
}
.mobile-phone a { color: #fff; font-weight: 700; font-size: 18px; }

/* ===== Hero ===== */
.hero-scroll-hint {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255,255,255,0.5);
    font-size: 13px;
    z-index: 2;
    animation: bounceHint 2s infinite;
}
@keyframes bounceHint { 0%,100%{transform:translateX(-50%) translateY(0)} 50%{transform:translateX(-50%) translateY(8px)} }

.stat-unit { font-size: 18px; font-weight: 600; color: var(--accent); }
.btn-lg { padding: 16px 36px; font-size: 16px; }

/* ===== 六大核心产品线（紧凑卡片） ===== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
.product-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 18px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    transition: all .25s;
}
.product-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 4px;
    background: var(--accent);
    opacity: 0;
    transition: opacity .25s;
}
.product-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: rgba(245, 166, 35, 0.55);
}
.product-card:hover::before { opacity: 1; }
.product-icon {
    width: 46px;
    height: 46px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    border-radius: 10px;
    background: rgba(10, 37, 64, 0.05);
}
.product-body {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
    flex: 1;
}
.product-head {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.product-head strong {
    font-size: 17px;
    color: var(--primary);
    font-weight: 700;
}
.product-head em {
    font-style: normal;
    font-size: 11px;
    color: var(--accent-dark);
    background: rgba(245, 166, 35, 0.13);
    padding: 2px 8px;
    border-radius: 10px;
    white-space: nowrap;
}
.product-desc {
    font-size: 13px;
    color: var(--text-light);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.product-arrow {
    flex-shrink: 0;
    color: var(--accent);
    font-size: 16px;
    transition: transform .25s;
}
.product-card:hover .product-arrow { transform: translateX(4px); }
.product-card--curtain .product-icon { background: rgba(10, 37, 64, 0.07); }
.product-card--upvc .product-icon { background: rgba(245, 166, 35, 0.12); }
.product-card--lvshalv .product-icon { background: rgba(56, 161, 105, 0.12); }
.product-card--partition .product-icon { background: rgba(66, 153, 225, 0.12); }
.product-card--repair .product-icon { background: rgba(229, 62, 62, 0.10); }

/* ===== 服务区域（西南西北大区） ===== */
.areas-section {
    background: linear-gradient(155deg, #0a2540 0%, #12395f 55%, #0a2540 100%);
}
.areas-section .section-title { color: #fff; }
.areas-section .section-subtitle { color: rgba(255,255,255,0.68); }
.region-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}
.region-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 18px 20px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.13);
    border-radius: 12px;
    color: #fff;
    transition: all .25s;
}
.region-card:hover {
    background: rgba(245,166,35,0.12);
    border-color: rgba(245,166,35,0.55);
    transform: translateY(-3px);
    color: #fff;
}
.region-card--hot {
    background: rgba(245,166,35,0.10);
    border-color: rgba(245,166,35,0.45);
}
.region-name {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 1px;
}
.region-cities {
    font-size: 13px;
    line-height: 1.6;
    color: rgba(255,255,255,0.66);
}
.region-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-top: auto;
    padding-top: 6px;
}
.region-badge {
    font-size: 11px;
    padding: 3px 9px;
    border-radius: 10px;
    color: #ffd89a;
    background: rgba(245,166,35,0.16);
    border: 1px solid rgba(245,166,35,0.32);
}
.region-more { font-size: 12px; color: rgba(255,255,255,0.45); transition: color .2s; }
.region-card:hover .region-more { color: var(--accent); }

/* ===== 解决方案 ===== */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.solution-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px 20px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all .3s;
}
.solution-card:hover {
    border-color: var(--accent);
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}
.solution-icon {
    font-size: 36px;
    flex-shrink: 0;
}
.solution-info h4 {
    font-size: 16px;
    color: var(--primary);
    margin-bottom: 4px;
}
.solution-info p {
    font-size: 13px;
    color: var(--text-light);
}

/* ===== 快速导航 ===== */
.quick-nav-section { padding-top: 40px; padding-bottom: 60px; }
.quick-nav-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
    text-align: left;
}
.quick-nav-col h4 {
    font-size: 15px;
    color: var(--primary);
    margin-bottom: 14px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--accent);
    display: inline-block;
}
.quick-nav-col ul { list-style: none; }
.quick-nav-col li { margin-bottom: 8px; }
.quick-nav-col a {
    color: var(--text-body);
    font-size: 14px;
    transition: color .2s;
}
.quick-nav-col a:hover { color: var(--accent); }

/* ===== 面包屑 ===== */
.breadcrumb {
    grid-column: 1 / -1;
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 24px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}
.breadcrumb a { color: var(--text-light); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-current { color: var(--text-dark); font-weight: 500; }

/* ===== 上下篇 ===== */
.prev-next {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 30px 0;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}
.prev-post, .next-post {
    display: block;
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius);
    transition: all .25s;
}
.prev-post:hover, .next-post:hover {
    background: #fff;
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
}
.next-post { text-align: right; }
.pn-label {
    display: block;
    font-size: 12px;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 8px;
}
.pn-title {
    display: block;
    font-size: 15px;
    color: var(--primary);
    font-weight: 500;
    line-height: 1.4;
}

/* ===== Hero 轮播 ===== */
.hero-section {
    position: relative;
    height: 86vh;
    min-height: 600px;
    max-height: 800px;
    overflow: hidden;
    padding-top: 72px;
    background: var(--primary);
}
.hero-slides { position: absolute; inset: 0; }
.hero-slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
    opacity: 0;
    visibility: hidden;
    transform: scale(1.03);
    transition: opacity .8s ease, visibility .8s, transform 7s linear;
}
.hero-slide.is-active {
    opacity: 1;
    visibility: visible;
    z-index: 1;
    transform: scale(1.09);
}
.hero-shade {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(6,26,46,0.94) 0%, rgba(6,26,46,0.78) 42%, rgba(6,26,46,0.35) 75%, rgba(6,26,46,0.2) 100%),
        linear-gradient(0deg, rgba(6,26,46,0.9) 0%, rgba(6,26,46,0) 38%);
}
.hero-slide-inner {
    position: relative;
    z-index: 2;
    color: #fff;
    text-align: left;
    padding-top: 20px;
    padding-bottom: 120px;
    max-width: 1240px;
}
.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(245, 166, 35, 0.18);
    border: 1px solid rgba(245, 166, 35, 0.45);
    border-radius: 50px;
    font-size: 13px;
    color: #ffd89a;
    margin-bottom: 24px;
    letter-spacing: .5px;
}
.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.16;
    margin-bottom: 20px;
    max-width: 760px;
    text-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.hero-title-accent {
    background: linear-gradient(90deg, #f5a623, #ffd89a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-desc {
    font-size: 17px;
    line-height: 1.85;
    color: rgba(255,255,255,0.86);
    margin-bottom: 32px;
    max-width: 620px;
}
.hero-btns { display: flex; gap: 14px; justify-content: flex-start; flex-wrap: wrap; }

.hero-bottom {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    z-index: 5;
    padding: 26px 0 16px;
    background: linear-gradient(0deg, rgba(6,26,46,0.92) 0%, rgba(6,26,46,0.45) 65%, rgba(6,26,46,0) 100%);
}
.hero-bottom-inner {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 30px;
}
.hero-stats {
    display: flex;
    justify-content: flex-start;
    gap: 44px;
    flex-wrap: wrap;
}
.stat-item { display: flex; flex-direction: column; }
.stat-num {
    font-size: 26px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}
.stat-unit { font-size: 14px; font-weight: 600; color: var(--accent); }
.stat-label {
    font-size: 12px;
    color: rgba(255,255,255,0.68);
    margin-top: 6px;
}
.hero-dots { display: flex; align-items: center; gap: 8px; padding-bottom: 6px; }
.hero-dot {
    width: 32px;
    height: 4px;
    border: none;
    border-radius: 2px;
    background: rgba(255,255,255,0.32);
    cursor: pointer;
    transition: all .25s;
    padding: 0;
}
.hero-dot.is-active { width: 46px; background: var(--accent); }
.hero-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 6;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.28);
    background: rgba(255,255,255,0.10);
    color: #fff;
    font-size: 26px;
    line-height: 1;
    cursor: pointer;
    transition: all .25s;
}
.hero-arrow:hover { background: var(--accent); border-color: var(--accent); }
.hero-arrow--prev { left: 20px; }
.hero-arrow--next { right: 20px; }

/* ===== 通用区块 ===== */
.section { padding: 54px 0; }
.section-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
    position: relative;
}
.section-title::after {
    content: '';
    display: block;
    width: 48px;
    height: 4px;
    background: var(--accent);
    margin: 12px auto 0;
    border-radius: 2px;
}
.section-subtitle {
    color: var(--text-light);
    font-size: 15px;
    margin-bottom: 32px;
}

/* ===== 服务网格 ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.service-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: all .3s;
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .3s;
}
.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}
.service-card:hover::before { transform: scaleX(1); }
.service-icon { font-size: 42px; margin-bottom: 18px; }
.service-card h3 { font-size: 20px; color: var(--primary); margin-bottom: 12px; }
.service-card p { color: var(--text-body); font-size: 14px; line-height: 1.7; margin-bottom: 16px; }
.service-more { color: var(--accent); font-weight: 600; font-size: 14px; }

/* ===== 案例 ===== */
.cases-section { background: var(--bg-light); }
.cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}
.case-card {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all .3s;
    display: flex;
    flex-direction: column;
}
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.case-img {
    display: block;
    aspect-ratio: 370 / 250;
    overflow: hidden;
    background: var(--bg-light);
}
.case-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.case-card:hover .case-img img { transform: scale(1.06); }
.case-body { padding: 14px 14px 16px; display: flex; flex-direction: column; flex: 1; }
.case-body h3 { font-size: 15px; line-height: 1.45; margin-bottom: 6px; }
.case-body h3 a { color: var(--primary); }
.case-body p {
    color: var(--text-body);
    font-size: 12px;
    line-height: 1.65;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.case-link { margin-top: auto; color: var(--accent); font-weight: 600; font-size: 12px; }
.section-more { text-align: center; margin-top: 28px; }
.btn-outline-dark {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}
.btn-outline-dark:hover { background: var(--primary); color: #fff; }

/* ===== 为什么选择我们 ===== */
.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.why-card {
    text-align: center;
    padding: 32px 20px;
    border-radius: var(--radius-lg);
    background: #fff;
    border: 1px solid var(--border);
    transition: all .3s;
}
.why-card:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-6px);
}
.why-card:hover h3, .why-card:hover p { color: #fff; }
.why-num {
    font-size: 44px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 16px;
}
.why-card h3 { font-size: 18px; color: var(--primary); margin-bottom: 10px; transition: color .3s; }
.why-card p { font-size: 13px; color: var(--text-body); line-height: 1.6; transition: color .3s; }

/* ===== 资讯 ===== */
.news-section { background: var(--bg-light); }
.news-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.news-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all .3s;
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.news-meta { color: var(--text-light); font-size: 13px; margin-bottom: 12px; }
.news-card h3 { font-size: 17px; margin-bottom: 12px; line-height: 1.4; }
.news-card h3 a { color: var(--primary); }
.news-card p { color: var(--text-body); font-size: 14px; margin-bottom: 16px; }
.news-link { color: var(--accent); font-weight: 600; font-size: 14px; }

/* ===== CTA ===== */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    padding: 60px 0;
}
.cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}
.cta-text h2 { color: #fff; font-size: 30px; margin-bottom: 8px; }
.cta-text p { color: rgba(255,255,255,0.8); font-size: 16px; }
.cta-action { display: flex; gap: 16px; flex-wrap: wrap; }

/* ===== 页脚 ===== */
.site-footer { background: #061a2e; color: rgba(255,255,255,0.7); padding: 60px 0 0; }
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
}
.footer-brand h3 { color: #fff; font-size: 18px; margin-bottom: 14px; }
.footer-brand p { font-size: 14px; line-height: 1.8; margin-bottom: 8px; }
.footer-phone, .footer-address { color: var(--accent) !important; font-weight: 600; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 18px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: rgba(255,255,255,0.6); font-size: 14px; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 24px 0;
    text-align: center;
    font-size: 13px;
}
.footer-bottom p { margin-bottom: 4px; }

/* ===== 返回顶部 ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    border: none;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all .3s;
    z-index: 999;
    box-shadow: var(--shadow-md);
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--accent-dark); transform: translateY(-3px); }

/* ===== 文章页 ===== */
.site-main { padding-top: 90px; padding-bottom: 60px; }
.main-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
}
.article-content { background: #fff; }
.article-header { margin-bottom: 28px; }
.article-cat a {
    display: inline-block;
    padding: 4px 14px;
    background: var(--accent);
    color: #fff;
    border-radius: 20px;
    font-size: 13px;
    margin-bottom: 16px;
}
.article-title { font-size: 30px; color: var(--primary); line-height: 1.3; margin-bottom: 14px; }
.article-meta { color: var(--text-light); font-size: 14px; display: flex; gap: 20px; }
.article-cover { margin-bottom: 30px; border-radius: var(--radius); overflow: hidden; }
.article-body { font-size: 16px; line-height: 1.9; color: var(--text-dark); }
.article-body h2 { font-size: 24px; color: var(--primary); margin: 36px 0 16px; padding-left: 14px; border-left: 4px solid var(--accent); }
.article-body h3 { font-size: 20px; color: var(--primary); margin: 28px 0 12px; }
.article-body p { margin-bottom: 16px; }
.article-body img { border-radius: var(--radius); margin: 16px 0; }
.article-body a { color: var(--accent); text-decoration: underline; }
.article-footer { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border); }
.article-tags a {
    display: inline-block;
    padding: 4px 12px;
    background: var(--bg-light);
    color: var(--text-body);
    border-radius: 4px;
    font-size: 13px;
    margin-right: 8px;
}
.article-tags a:hover { background: var(--accent); color: #fff; }
.related-posts { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border); }
.related-posts h3 { font-size: 19px; color: var(--primary); margin-bottom: 14px; }
.related-list {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 28px;
}
.related-list li { border-bottom: 1px dashed var(--border); }
.related-list li a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
}
.related-title {
    flex: 1;
    min-width: 0;
    font-size: 14px;
    color: var(--text-dark);
    line-height: 1.5;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.related-title::before {
    content: '•';
    color: var(--accent);
    margin-right: 6px;
}
.related-date { flex-shrink: 0; font-size: 12px; color: var(--text-light); }
.related-list li a:hover .related-title { color: var(--accent); }

/* ===== 侧边栏 ===== */
.site-sidebar { position: sticky; top: 90px; align-self: start; }
.widget { background: #fff; border-radius: var(--radius); padding: 24px; margin-bottom: 24px; box-shadow: var(--shadow-sm); }
.widget h4 { font-size: 17px; color: var(--primary); margin-bottom: 16px; padding-bottom: 10px; border-bottom: 2px solid var(--accent); }
.widget-posts { list-style: none; }
.widget-posts li { margin-bottom: 14px; }
.widget-posts li a { display: flex; gap: 10px; align-items: flex-start; }
.w-post-img { width: 70px; height: 50px; border-radius: 4px; overflow: hidden; flex-shrink: 0; }
.w-post-img img { width: 100%; height: 100%; object-fit: cover; }
.w-post-title { font-size: 13px; color: var(--text-dark); line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.widget-posts li:hover .w-post-title { color: var(--accent); }
.widget-contact p { margin-bottom: 10px; font-size: 14px; }
.tag-cloud a {
    display: inline-block;
    padding: 4px 10px;
    background: var(--bg-light);
    color: var(--text-body);
    border-radius: 4px;
    font-size: 12px !important;
    margin: 0 4px 6px 0;
}
.tag-cloud a:hover { background: var(--accent); color: #fff; }

/* ===== 列表页（左文章列表 + 右侧栏） ===== */
.archive-header { margin-bottom: 26px; text-align: left; border-left: 4px solid var(--accent); padding-left: 14px; }
.archive-title { font-size: 28px; color: var(--primary); margin-bottom: 6px; }
.archive-desc { color: var(--text-light); font-size: 14px; }
.archive-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 30px;
    align-items: start;
}
.archive-main { min-width: 0; }
.post-list { display: flex; flex-direction: column; gap: 14px; }
.post-item {
    display: grid;
    grid-template-columns: 210px 1fr;
    gap: 18px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    transition: all .25s;
}
.post-item:hover { border-color: rgba(245,166,35,0.5); box-shadow: var(--shadow-md); }
.post-item-img { height: 148px; overflow: hidden; background: var(--bg-light); }
.post-item-img img { width: 100%; height: 100%; object-fit: cover; }
.post-item-body { padding: 16px 18px 16px 0; display: flex; flex-direction: column; }
.post-item-meta { display: flex; gap: 14px; font-size: 12px; color: var(--text-light); margin-bottom: 6px; }
.post-cat { color: var(--accent); font-weight: 600; }
.post-item h2 { font-size: 18px; line-height: 1.4; margin-bottom: 8px; }
.post-item h2 a { color: var(--primary); }
.post-item h2 a:hover { color: var(--accent); }
.post-item p {
    color: var(--text-body);
    font-size: 13px;
    line-height: 1.7;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.post-more { margin-top: auto; color: var(--accent); font-weight: 600; font-size: 13px; }
.pagination { text-align: center; margin-top: 28px; }
.pagination a, .pagination span {
    display: inline-block;
    padding: 8px 16px;
    margin: 0 4px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-dark);
}
.pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); }

/* 列表页右侧栏 */
.archive-side .widget { padding: 18px 20px; margin-bottom: 18px; }
.archive-side .widget h4 { font-size: 16px; margin-bottom: 12px; padding-bottom: 8px; }
.side-news-list { list-style: none; }
.side-news-list li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 8px 0;
    border-bottom: 1px dashed var(--border);
}
.side-news-list li:last-child { border-bottom: none; }
.side-news-list a { display: flex; gap: 8px; flex: 1; min-width: 0; }
.side-news-dot {
    width: 5px; height: 5px;
    border-radius: 50%;
    background: var(--accent);
    flex-shrink: 0;
    margin-top: 8px;
}
.side-news-title {
    font-size: 13px;
    color: var(--text-dark);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.side-news-list a:hover .side-news-title { color: var(--accent); }
.side-news-date { font-size: 11px; color: var(--text-light); flex-shrink: 0; padding-top: 2px; }
.side-biz-list { list-style: none; }
.side-biz-list li { border-bottom: 1px dashed var(--border); }
.side-biz-list li:last-child { border-bottom: none; }
.side-biz-list a {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 9px 0;
    font-size: 14px;
    color: var(--text-body);
}
.biz-icon {
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    background: rgba(245,166,35,0.12);
    border-radius: 6px;
    flex-shrink: 0;
}
.side-biz-list a:hover { color: var(--accent); }

/* ===== 页面 ===== */
.page-wrap { max-width: 900px; }
.page-title { font-size: 32px; color: var(--primary); margin-bottom: 24px; text-align: center; }
.page-body { font-size: 16px; line-height: 1.9; }
.page-body h2 { color: var(--primary); margin: 30px 0 14px; }

/* ===== 404 ===== */
.error-page { text-align: center; padding: 100px 0; }
.error-code { font-size: 120px; font-weight: 800; color: var(--accent); line-height: 1; }
.error-page h1 { font-size: 32px; color: var(--primary); margin: 20px 0 12px; }
.error-page p { color: var(--text-light); margin-bottom: 30px; }

/* ===== 响应式 ===== */
@media (max-width: 1320px) {
    .logo-slogan { display: none; }
}
@media (max-width: 1280px) {
    .header-inner { gap: 12px; }
    .site-logo img { height: 48px; }
    .main-nav .nav-list { gap: 20px; }
    .main-nav .nav-list > li > a { font-size: 15px; }
    .main-nav .nav-list > li:last-child > a { padding: 9px 16px; }
    .header-phone { font-size: 16px; }
}
@media (max-width: 1140px) {
    .header-phone { display: none; }
    .main-nav .nav-list { gap: 26px; }
    .main-nav .nav-list > li > a { font-size: 16px; }
}
@media (max-width: 1024px) {
    /* 一级菜单 8 项，1024 以下放不进一行，提前切换为抽屉菜单 */
    .main-nav { display: none; }
    .mobile-menu-btn { display: flex; }
    .services-grid, .cases-grid, .products-grid, .solution-grid { grid-template-columns: repeat(2, 1fr); }
    .why-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
    .region-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .main-layout { grid-template-columns: 1fr; }
    .site-sidebar { position: static; }
    .archive-layout { grid-template-columns: 1fr; }
    .archive-side { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .quick-nav-grid { grid-template-columns: 1fr 1fr; }
    .hero-title { font-size: 44px; }
}
@media (max-width: 768px) {
    .hero-section { height: auto; min-height: 540px; max-height: none; }
    .hero-slide-inner { padding-bottom: 70px; }
    .hero-title { font-size: 30px; }
    .hero-desc { font-size: 15px; margin-bottom: 24px; }
    .hero-badge { font-size: 11px; padding: 6px 14px; }
    .hero-stats { display: none; }
    .hero-arrow { display: none; }
    .hero-bottom { padding: 16px 0 12px; }
    .hero-bottom-inner { justify-content: center; }
    .hero-bottom .hero-dots { padding-bottom: 0; }
    .section { padding: 40px 0; }
    .section-title { font-size: 24px; }
    .services-grid, .cases-grid, .why-grid, .news-grid,
    .products-grid, .solution-grid, .region-grid { grid-template-columns: 1fr; }
    .related-list { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .cta-inner { flex-direction: column; text-align: center; }
    .archive-side { grid-template-columns: 1fr; }
    .post-item { grid-template-columns: 1fr; }
    .post-item-img { height: 200px; }
    .post-item-body { padding: 0 18px 16px; }
    .article-title { font-size: 22px; }
    .quick-nav-grid { grid-template-columns: 1fr; }
    .prev-next { grid-template-columns: 1fr; }
    .prev-post, .next-post { text-align: left; }
}