/* ============================================================
   双菱智诚桥架 - 企业营销型网站 主样式表
   设计风格：大气、专业、工业风
   ============================================================ */

/* ========== CSS变量 & 全局重置 ========== */
:root {
    --primary: #1a5fdc;
    --primary-dark: #1349b0;
    --primary-light: #3d7af0;
    --accent: #c8943e;
    --accent-light: #e0b860;
    --dark: #0f1923;
    --dark2: #16273e;
    --dark3: #1a3050;
    --text: #2c2c2c;
    --text-light: #5a5a5a;
    --text-muted: #8c8c8c;
    --white: #ffffff;
    --bg: #f2f4f7;
    --bg-light: #f8f9fb;
    --border: #e0e3e8;
    --shadow: 0 4px 20px rgba(0,0,0,0.07);
    --shadow-hover: 0 8px 30px rgba(0,0,0,0.10);
    --shadow-card: 0 2px 12px rgba(0,0,0,0.05);
    --radius: 8px;
    --radius-sm: 4px;
    --radius-lg: 12px;
    --transition: all 0.3s ease;
    --font: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    --container: 1200px;
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font);
    font-size: 15px;
    line-height: 1.7;
    color: var(--text);
    background: var(--white);
    overflow-x: hidden;
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 30px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}
.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(26,95,220,0.3);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.5);
}
.btn-outline:hover {
    background: var(--white);
    color: var(--dark);
    border-color: var(--white);
}

.btn-outline-sm {
    background: transparent;
    color: var(--white);
    border: 1px solid var(--white);
    padding: 8px 18px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
}
.btn-outline-sm:hover {
    background: var(--white);
    color: var(--dark);
}

.btn-white {
    background: var(--white);
    color: var(--primary);
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
}
.btn-white:hover {
    background: var(--dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.btn-block {
    width: 100%;
    justify-content: center;
    padding: 14px;
    font-size: 16px;
}

.btn-outline-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 34px;
    border: 2px solid var(--primary);
    color: var(--primary);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    background: transparent;
    cursor: pointer;
    transition: var(--transition);
}
.btn-outline-primary:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(26,95,220,0.25);
}

/* ========== 区块通用 ========== */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-tag {
    display: inline-block;
    color: var(--primary);
    font-size: 40px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 10px;
    position: relative;
    padding-left: 40px;
    padding-right: 40px;
}
.section-tag::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 30px;
    height: 2px;
    background: var(--primary);
    transform: translateY(-50%);
}
.section-tag::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    width: 30px;
    height: 2px;
    background: var(--primary);
    transform: translateY(-50%);
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 15px;
    line-height: 1.3;
}
.section-title .highlight {
    color: var(--primary);
}

.section-desc {
    font-size: 16px;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

.section-more {
    text-align: center;
    margin-top: 40px;
}

/* ========== 顶部信息栏 ========== */
.top-bar {
    background: var(--dark);
    color: rgba(255,255,255,0.7);
    font-size: 13px;
    padding: 8px 0;
}
.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.top-links {
    display: flex;
    gap: 20px;
}
.top-links span i {
    color: var(--primary-light);
    margin-right: 5px;
}

/* ========== 主导航 ========== */
.header {
    background: var(--white);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}
.header .container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    padding: 0;
}
.header-row {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
    padding: 0 var(--container-pad, 0);
}

.logo {
    flex-shrink: 0;
    display: flex;
    align-items: center;
}
.logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

/* 导航栏 - 深色背景独立条 */
.nav {
    width: 100%;
    background: var(--dark);
    position: relative;
}
.nav .container {
    display: flex;
    padding: 0;
}
.nav ul {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    list-style: none;
}
.nav ul li {
    flex: 1;
    text-align: center;
}
.nav ul li a {
    display: block;
    padding: 14px 0;
    font-size: 15px;
    font-weight: 500;
    color: rgba(255,255,255,0.78);
    text-decoration: none;
    position: relative;
    transition: all 0.3s ease;
    white-space: nowrap;
    letter-spacing: 0.5px;
}
.nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 60%;
    height: 3px;
    background: var(--primary-light);
    border-radius: 3px 3px 0 0;
    transition: transform 0.3s ease;
}
.nav ul li a:hover,
.nav ul li a.active {
    color: #ffffff;
}
.nav ul li a:hover::after,
.nav ul li a.active::after {
    transform: translateX(-50%) scaleX(1);
}
.nav ul li a.active {
    font-weight: 600;
}
/* 下拉菜单指示箭头 */
.nav ul li.dropdown > a .fa-chevron-down {
    font-size: 10px;
    margin-left: 4px;
    opacity: 0.6;
    transition: transform 0.3s ease;
}
.nav ul li.dropdown:hover > a .fa-chevron-down {
    opacity: 1;
    transform: rotate(180deg);
}

/* ========== 导航下拉菜单 ========== */
.dropdown {
    position: relative;
}
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    transform: translateY(8px);
    background: var(--white);
    min-width: 160px;
    border-radius: var(--radius);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    padding: 6px 0;
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s ease;
    z-index: 100;
}
.dropdown-menu::before {
      content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 6px solid var(--white);
}
.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-grid {
    display: block;
}
.dropdown-item {
    display: block;
    padding: 8px 20px;
    color: var(--text) !important;
    text-decoration: none;
    font-size: 14px;
    white-space: nowrap;
    transition: background 0.2s;
}
.dropdown-item:hover {
    background: var(--bg);
    color: var(--primary) !important;
}
.dropdown-item i {
    width: 18px;
    margin-right: 8px;
    color: var(--primary);
    font-size: 12px;
}
.dropdown-item div {
    display: inline;
}
.dropdown-item strong {
    font-size: 14px;
    font-weight: 500;
    color: inherit;
}
.dropdown-item span {
    display: none;
}

/* 头部电话按钮 */
.header-tel {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: var(--white);
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    flex-shrink: 0;
}
.header-tel:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

/* 顶部语言切换 */
.top-lang {
    font-size: 12px;
    font-weight: 600;
    color: var(--primary);
    border: 1px solid var(--primary);
    padding: 2px 8px;
    text-decoration: none;
    transition: var(--transition);
}
.top-lang:first-of-type {
    border-radius: 3px 0 0 3px;
    border-right: none;
}
.top-lang:last-of-type {
    border-radius: 0 3px 3px 0;
}
.top-lang.active,
.top-lang:hover {
    background: var(--primary);
    color: #fff;
}

/* 移动端菜单按钮 */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}
.mobile-toggle span {
    display: block;
    width: 26px;
    height: 3px;
    background: var(--dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========== 主 Banner ========== */
.hero {
    position: relative;
    min-height: 800px;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 0;
}
.hero-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(8,16,28,0.55) 0%, rgba(15,28,46,0.45) 40%, rgba(20,38,62,0.4) 70%, rgba(26,48,80,0.35) 100%);
    z-index: 1;
}
.hero-content {
    position: relative;
    z-index: 2;
    padding: 80px 0;
    color: var(--white);
}
.hero-subtitle {
    display: inline-block;
    font-size: 14px;
    letter-spacing: 5px;
    color: var(--accent-light);
    margin-bottom: 15px;
    font-weight: 500;
}
.hero-content h1 {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}
.hero-content h1 .highlight {
    color: var(--accent-light);
}
.hero-content > p {
    font-size: 17px;
    color: rgba(255,255,255,0.75);
    line-height: 1.8;
    margin-bottom: 35px;
    max-width: 600px;
}
.hero-btns {
    display: flex;
    gap: 15px;
    margin-bottom: 50px;
}

/* Banner 数据统计 */
.hero-stats {
    display: flex;
    gap: 55px;
}
.stat-item {
    text-align: center;
    position: relative;
}
.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -28px;
    top: 10%;
    height: 80%;
    width: 1px;
    background: rgba(255,255,255,0.15);
}
.stat-num {
    font-size: 42px;
    font-weight: 800;
    color: var(--accent-light);
    line-height: 1;
}
.stat-plus {
    font-size: 42px;
    font-weight: 800;
    color: var(--accent-light);
    line-height: 1;
}
.stat-label {
    font-size: 14px;
    color: rgba(255,255,255,0.55);
    margin-top: 5px;
    display: block;
}

/* ========== 核心优势 ========== */
.features {
    padding: 0;
    margin-top: -55px;
    position: relative;
    z-index: 10;
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.feature-card {
    background: var(--white);
    padding: 38px 25px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}
.feature-card:hover::before {
    transform: scaleX(1);
}
.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}
.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, rgba(26,95,220,0.08), rgba(200,148,62,0.08));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--primary);
    transition: var(--transition);
}
.feature-card:hover .feature-icon {
    background: var(--primary);
    color: var(--white);
    transform: rotateY(360deg);
}
.feature-card h3 {
    font-size: 19px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}
.feature-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ========== 关于我们 ========== */
.about {
    padding: 100px 0;
    background: var(--bg-light);
}
.about-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.about-img-col {
    position: relative;
}
.about-img-wrap {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.about-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 1 / 1;
    display: block;
}
.about-video {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    display: block;
    border-radius: var(--radius-lg);
}
.about-badge {
    position: absolute;
    bottom: -20px;
    right: 30px;
    background: var(--primary);
    color: var(--white);
    padding: 16px 28px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: 0 8px 25px rgba(26,95,220,0.35);
}
/* 长条形 badge */
.about-badge-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 50px;
}
.about-badge-bar .badge-num {
    font-size: 36px;
    line-height: 1;
    display: inline;
}
.about-badge-bar .badge-text {
    font-size: 15px;
    opacity: 0.9;
}
.badge-num {
    font-size: 48px;
    font-weight: 800;
    line-height: 1;
    display: block;
}
.badge-text {
    font-size: 14px;
    opacity: 0.9;
}
/* 经验年限 */
.about-years {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--primary);
    color: var(--white);
    padding: 8px 20px;
    border-radius: 6px;
    margin-bottom: 18px;
}
.about-years-num {
    font-size: 28px;
    font-weight: 800;
    line-height: 1;
}
.about-years-text {
    font-size: 14px;
    opacity: 0.9;
}
.about-text-col .section-title {
    font-size: 30px;
    margin-bottom: 20px;
}
.about-text-col > p {
    color: var(--text-light);
    margin-bottom: 15px;
    font-size: 15px;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin: 25px 0;
}
.af-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}
.af-item i {
    color: var(--primary);
    font-size: 20px;
    margin-top: 2px;
    flex-shrink: 0;
}
.af-item h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 3px;
}
.af-item p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
}

/* ========== 产品中心 ========== */
.products {
    padding: 100px 0;
    background: var(--white);
}
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.product-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: var(--transition);
    border: 1px solid var(--border);
}
.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}
.product-img-wrap {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1 / 1;
}
.product-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}
.product-card:hover .product-img {
    transform: scale(1.08);
}
.product-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15,25,35,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}
.product-card:hover .product-overlay {
    opacity: 1;
}
.product-info {
    padding: 10px 14px;
    text-align: center;
    background: var(--bg-light);
    border-top: 2px solid var(--border);
}
.product-info h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}
.product-info p {
    font-size: 13px;
    color: var(--text-muted);
}

/* ========== 工厂实力 ========== */
.advantage {
    padding: 100px 0;
    background: var(--bg-light);
}
.adv-tabs {
    max-width: 1000px;
    margin: 0 auto;
}
.adv-tab-nav {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-bottom: 40px;
    background: var(--white);
    border-radius: 50px;
    padding: 6px;
    box-shadow: var(--shadow-card);
    flex-wrap: wrap;
}
.adv-tab-btn {
    padding: 12px 26px;
    border: none;
    background: transparent;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-light);
    cursor: pointer;
    border-radius: 50px;
    transition: var(--transition);
    white-space: nowrap;
    font-family: var(--font);
}
.adv-tab-btn i {
    margin-right: 6px;
}
.adv-tab-btn.active,
.adv-tab-btn:hover {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(26,95,220,0.25);
}

.adv-tab-panel {
    display: none;
    animation: fadeInUp 0.5s ease;
}
.adv-tab-panel.active {
    display: block;
}

.adv-panel-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}
.adv-panel-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.adv-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 1 / 1;
    display: block;
}
.adv-panel-text h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 18px;
}
.adv-panel-text > p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}
.adv-panel-text ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.adv-panel-text ul li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    font-size: 15px;
}
.adv-panel-text ul li i {
    color: var(--primary);
    font-size: 16px;
    flex-shrink: 0;
}

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

/* ========== CTA 咨询区 ========== */
.cta {
    padding: 60px 0;
    background: linear-gradient(135deg, #0f1923 0%, #16273e 50%, #1a3050 100%);
    position: relative;
    overflow: hidden;
}
.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(26,95,220,0.12) 0%, transparent 70%);
    border-radius: 50%;
}
.cta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}
.cta-text h2 {
    font-size: 30px;
    color: var(--white);
    font-weight: 700;
    margin-bottom: 10px;
}
.cta-text p {
    color: rgba(255,255,255,0.7);
    font-size: 16px;
}
.cta-action {
    display: flex;
    align-items: center;
    gap: 25px;
}
.cta-phone {
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--white);
}
.cta-phone i {
    font-size: 40px;
    color: var(--primary);
    animation: phoneRing 1.5s ease-in-out infinite;
}
.cta-phone div {
    display: flex;
    flex-direction: column;
}
.cta-phone span {
    font-size: 13px;
    opacity: 0.7;
}
.cta-phone strong {
    font-size: 26px;
    font-weight: 700;
}

@keyframes phoneRing {
    0%, 100% { transform: rotate(0); }
    10%, 30% { transform: rotate(-10deg); }
    20%, 40% { transform: rotate(10deg); }
    50% { transform: rotate(0); }
}

/* ========== 工程案例 ========== */
.cases {
    padding: 100px 0;
    background: var(--white);
}
.cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.case-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: var(--transition);
}
.case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}
.case-img-wrap {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1 / 1;
}
.case-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}
.case-card:hover .case-img {
    transform: scale(1.08);
}
.case-info {
    padding: 20px;
    background: var(--white);
}
.case-tag {
    font-size: 12px;
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.case-info h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-top: 5px;
}

/* ========== 合作伙伴 ========== */
.partners {
    padding: 80px 0;
    background: var(--bg-light);
}
.partners-scroll {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}
.partner-item {
    width: 205px;
    height: 120px;
    background: var(--white);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-card);
    transition: var(--transition);
    border: 1px solid transparent;
    padding: 12px;
}
.partner-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.partner-item:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

/* ========== 新闻资讯 ========== */
.news {
    padding: 100px 0;
    background: var(--white);
}
.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.news-card {
    display: flex;
    gap: 20px;
    padding: 25px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    border: 1px solid transparent;
}
.news-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
    transform: translateX(5px);
}
.news-date {
    flex-shrink: 0;
    width: 70px;
    height: 70px;
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.news-date .day {
    font-size: 26px;
    font-weight: 800;
    line-height: 1;
}
.news-date .month {
    font-size: 12px;
    opacity: 0.9;
}
.news-body {
    flex: 1;
}
.news-tag {
    display: inline-block;
    font-size: 11px;
    padding: 3px 10px;
    border-radius: 20px;
    font-weight: 500;
    margin-bottom: 8px;
}
.tag-industry {
    background: rgba(26,95,220,0.08);
    color: var(--primary);
}
.tag-company {
    background: rgba(200,148,62,0.1);
    color: var(--accent);
}
.news-body h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}
.news-body h4 a {
    color: var(--dark);
}
.news-body h4 a:hover {
    color: var(--primary);
}
.news-body > p {
    font-size: 13px;
    color: var(--text-muted);
}

/* ========== 联系我们 ========== */
.contact {
    padding: 100px 0;
    background: var(--bg-light);
}
.contact-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}
.contact-info-col .section-title {
    font-size: 30px;
    margin-bottom: 15px;
}
.contact-info-col > p {
    color: var(--text-light);
    margin-bottom: 30px;
    font-size: 15px;
}
.contact-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}
.contact-icon {
    width: 44px;
    height: 44px;
    background: rgba(26,95,220,0.08);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}
.contact-item > div:not(.contact-icon):not(.contact-qr-body) {
    display: flex;
    flex-direction: column;
}
.contact-item span {
    font-size: 13px;
    color: var(--text-muted);
}
.contact-item strong {
    font-size: 16px;
    color: var(--dark);
    font-weight: 600;
}

/* 联系我们 - 微信二维码行 */
.contact-qr-item {
    align-items: center;
}
.contact-qr-body {
    display: flex;
    align-items: center;
    gap: 16px;
}
.contact-qr-body > div:first-child {
    display: flex;
    flex-direction: column;
}
.contact-qr-body small {
    font-size: 12px;
    color: var(--primary);
    margin-top: 4px;
}

/* 二维码 + 提示文字垂直居中 */
.contact-qr-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}
.contact-qr-img {
    width: 110px;
    height: 110px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 5px;
    background: var(--white);
    box-shadow: var(--shadow-card);
    flex-shrink: 0;
    object-fit: contain;
    transition: var(--transition);
}
.contact-qr-img:hover {
    transform: scale(1.06);
    box-shadow: var(--shadow-hover);
}

/* 联系我们 - 表单 */
.contact-form-col {
    /* flex for alignment */
}
.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border-top: 4px solid var(--primary);
    position: relative;
    overflow: hidden;
}
.contact-form::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 140px;
    height: 140px;
    background: rgba(26,95,220,0.03);
    border-radius: 50%;
    pointer-events: none;
}
.contact-form h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
    position: relative;
}
.contact-form h3 i {
    color: var(--primary);
    margin-right: 6px;
}
.contact-form-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 28px;
    position: relative;
}
.contact-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 0;
}
.contact-form .form-group {
    margin-bottom: 18px;
    position: relative;
}
.contact-form .form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}
.contact-form .form-group label span {
    color: #e74c3c;
}
.contact-form .input-icon-wrap {
    position: relative;
}
.contact-form .input-icon-wrap i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 14px;
    transition: var(--transition);
    z-index: 1;
}
.contact-form .input-icon-wrap input {
    padding-left: 40px;
}
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 13px 16px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    font-family: var(--font);
    margin-bottom: 0;
    transition: var(--transition);
    background: var(--bg-light);
    color: var(--text);
    outline: none;
}
.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26,95,220,0.1);
    background: var(--white);
}
.contact-form .input-icon-wrap input:focus ~ i,
.contact-form .input-icon-wrap input:focus + i,
.contact-form .input-icon-wrap:focus-within i {
    color: var(--primary);
}
.contact-form textarea {
    resize: vertical;
    min-height: 110px;
}
.contact-form .btn-block {
    margin-top: 8px;
    padding: 15px;
    font-size: 16px;
    font-weight: 600;
    gap: 10px;
    border-radius: 6px;
    letter-spacing: 0.5px;
}

/* ========== 页脚 ========== */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.7);
    padding-top: 70px;
    border-top: 3px solid var(--accent);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 0.8fr 0.8fr 0.8fr 1.2fr;
    gap: 40px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo {
    margin-bottom: 18px;
}
.footer-logo-img {
    max-height: 50px;
    width: auto;
    object-fit: contain;
}

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

.footer-social {
    display: flex;
    gap: 12px;
}
.footer-social a {
    width: 38px;
    height: 38px;
    background: rgba(255,255,255,0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
}
.footer-social a:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-3px);
}

.footer-col h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}
.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--primary);
}

.footer-col ul {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.footer-col ul li a {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
}
.footer-col ul li a:hover {
    color: var(--primary);
    padding-left: 5px;
}

/* 单列竖向列表（产品中心、快速导航） */
.footer-list-col {
    display: flex !important;
    flex-direction: column !important;
    grid-template-columns: none !important;
    gap: 8px !important;
}
.footer-list-col li a {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
}
.footer-list-col li a:hover {
    color: var(--primary);
    padding-left: 5px;
}

/* 页脚联系方式列表 */
.footer-contact-list {
    display: flex !important;
    flex-direction: column !important;
    grid-template-columns: none !important;
}
.footer-contact-list li {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}
.footer-contact-list li i {
    color: var(--primary);
    margin-top: 4px;
    flex-shrink: 0;
}

/* 页脚联系方式中的微信二维码项 */
.footer-contact-qr {
    align-items: flex-start !important;
    margin-top: 4px;
}
.footer-contact-qr i {
    font-size: 16px;
    color: var(--primary);
    margin-top: 4px !important;
}
.footer-contact-qr-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.footer-contact-qr-info strong {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    font-weight: 400;
}
.footer-qr-img {
    width: 90px;
    height: 90px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255,255,255,0.1);
    padding: 2px;
    background: var(--white);
    object-fit: contain;
    transition: var(--transition);
    display: block;
    margin-top: 4px;
}
.footer-qr-img:hover {
    transform: scale(1.08);
}

/* 页脚底部 */
.footer-bottom {
    text-align: center;
    padding: 20px 0;
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}
.footer-bottom a {
    color: rgba(255,255,255,0.4);
    transition: var(--transition);
}
.footer-bottom a:hover {
    color: var(--primary);
}
.footer-beian {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    vertical-align: middle;
}
.beian-icon {
    width: 16px;
    height: 16px;
    display: inline-block;
    vertical-align: middle;
    flex-shrink: 0;
}
/* 免责声明 */
.footer-disclaimer {
    text-align: center;
    padding: 10px 20px 20px;
    font-size: 12px;
    color: rgba(255,255,255,0.25);
    line-height: 1.8;
    border-top: 1px solid rgba(255,255,255,0.06);
    max-width: 900px;
    margin: 0 auto;
}

/* ========== 侧边悬浮工具 ========== */
.side-tools {
    position: fixed;
    right: 20px;
    bottom: 120px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.side-tool {
    width: 50px;
    height: 50px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--text-light);
    box-shadow: 0 2px 12px rgba(0,0,0,0.1);
    position: relative;
    transition: var(--transition);
}
.side-tool:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateX(-3px);
}
.side-tool .tool-tip {
    position: absolute;
    right: 60px;
    background: var(--dark);
    color: var(--white);
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    pointer-events: none;
}
.side-tool:hover .tool-tip {
    opacity: 1;
    visibility: visible;
}
.tool-qr-popup {
    position: absolute;
    right: 60px;
    bottom: 0;
    background: var(--white);
    color: var(--text);
    padding: 12px 18px;
    border-radius: var(--radius);
    font-size: 13px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-hover);
    pointer-events: none;
}
.side-tool:hover .tool-qr-popup {
    opacity: 1;
    visibility: visible;
}
.side-tool.back-top {
    opacity: 0;
    visibility: hidden;
}
.side-tool.back-top.visible {
    opacity: 1;
    visibility: visible;
}

/* ========== 内页通用 Banner ========== */
.page-hero {
    position: relative;
    min-height: 350px;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.page-hero-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 0;
}
.page-hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.page-hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(8,16,28,0.93) 0%, rgba(15,28,46,0.88) 50%, rgba(20,38,62,0.9) 100%);
    z-index: 1;
}
.page-hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 60px 0;
}
.page-hero-content h1 {
    font-size: 44px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 15px;
}
.breadcrumb {
    font-size: 15px;
    color: rgba(255,255,255,0.5);
}
.breadcrumb a {
    color: var(--accent-light);
    transition: var(--transition);
}
.breadcrumb a:hover {
    color: var(--white);
}
.breadcrumb span {
    margin: 0 8px;
}









/* ========== 关于我们 - 详细内容 ========== */
.about-section {
    padding: 80px 0 60px;
}
.about-advantages {
    padding: 80px 0;
}
.about-detail-section {
    padding: 70px 0;
}
.factory-show {
    padding: 80px 0;
}
.cert-section {
    padding: 80px 0;
}
.about-detail-content {
    max-width: 900px;
    margin: 0 auto;
}
.about-detail-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 20px;
    padding-left: 15px;
    border-left: 4px solid var(--primary);
}
.about-detail-content p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 2;
    margin-bottom: 18px;
    text-indent: 2em;
}

/* ========== 全国工程业绩 ========== */
.projects-section {
    padding: 80px 0;
    background: var(--white);
}
.projects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 40px;
}


/* ========== 企业文化 / 宗旨 ========== */
.about-values {
    padding: 80px 0;
    background: var(--white);
}
.values-row {
    display: grid;
    grid-template-columns: 1fr 0.7fr;
    gap: 60px;
    align-items: center;
}
.values-text .section-tag {
    margin-bottom: 10px;
}
.values-text .section-title {
    font-size: 32px;
    margin-bottom: 20px;
}
.values-intro {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.9;
    margin-bottom: 15px;
}
.values-closing {
    font-size: 17px;
    color: var(--primary);
    font-weight: 600;
    line-height: 1.8;
}
.values-cards {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.value-card {
    background: var(--bg-light);
    padding: 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border);
}
.value-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}
.value-card i {
    font-size: 32px;
    color: var(--primary);
    margin-bottom: 12px;
}
.value-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}
.value-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ============================================================
   关于我们页面 - 全新布局样式
   ============================================================ */

/* ========== 全屏 Banner V2 - 融合行动号召 ========== */
.about-hero-v2 {
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.about-hero-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 0;
}
.about-hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.about-hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(8,14,24,0.94) 0%, rgba(15,25,40,0.88) 45%, rgba(20,38,62,0.82) 100%);
    z-index: 1;
}
.about-hero-body {
    position: relative;
    z-index: 2;
    padding: 70px 20px 0;
    display: flex;
    flex-direction: column;
}
.about-hero-top {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
    padding-bottom: 40px;
}
.about-hero-left {
    flex: 1;
}
.about-hero-tag {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 6px;
    color: var(--accent-light);
    margin-bottom: 12px;
    font-weight: 600;
}
.about-hero-left h1 {
    font-size: 52px;
    font-weight: 800;
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 15px;
}
.about-hero-left h1 .hl {
    color: var(--accent-light);
}
.about-hero-sub {
    font-size: 17px;
    color: rgba(255,255,255,0.65);
    margin-bottom: 20px;
    max-width: 500px;
}
.about-hero-left .breadcrumb {
    font-size: 14px;
    color: rgba(255,255,255,0.4);
}
.about-hero-left .breadcrumb a {
    color: var(--accent-light);
}
.about-hero-left .breadcrumb a:hover {
    color: var(--white);
}
.about-hero-left .breadcrumb span {
    margin: 0 6px;
}

.about-hero-stats {
    display: flex;
    gap: 0;
    flex-shrink: 0;
}
.ahs-item {
    text-align: center;
    padding: 20px 28px;
    border-left: 1px solid rgba(255,255,255,0.1);
    min-width: 120px;
}
.ahs-item:first-child {
    border-left: none;
}
.ahs-num {
    font-size: 40px;
    font-weight: 800;
    color: var(--accent-light);
    line-height: 1;
    display: block;
    margin-bottom: 6px;
}

/* 公司成立年限 - 红色高亮 */
.company-years-red {
    font-weight: inherit;
}

.ahs-unit {
    font-size: 22px;
    font-weight: 600;
}
.ahs-label {
    font-size: 13px;
    color: rgba(255,255,255,0.5);
    display: block;
}

/* Banner 底部 CTA 条 */
.about-hero-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    padding: 24px 30px;
    background: rgba(255,255,255,0.07);
    backdrop-filter: blur(12px);
    border-top: 1px solid rgba(255,255,255,0.08);
    border-radius: 12px 12px 0 0;
    margin: 0 -10px;
}
.hero-cta-text {
    display: flex;
    align-items: center;
    gap: 14px;
}
.hero-cta-icon {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--white);
    flex-shrink: 0;
    box-shadow: 0 4px 16px rgba(200,148,62,0.35);
    animation: ctaPulse 2s ease-in-out infinite;
}
@keyframes ctaPulse {
    0%, 100% { box-shadow: 0 4px 16px rgba(200,148,62,0.35); }
    50% { box-shadow: 0 4px 28px rgba(200,148,62,0.6); }
}
.hero-cta-text strong {
    font-size: 18px;
    color: var(--white);
    font-weight: 700;
    display: block;
    margin-bottom: 3px;
}
.hero-cta-text p {
    font-size: 14px;
    color: rgba(255,255,255,0.5);
    margin: 0;
}
.hero-cta-actions {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}
.hero-cta-actions .btn-cta-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 30px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    border-radius: 6px;
    font-size: 15px;
    font-weight: 700;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(26,95,220,0.4);
}
.hero-cta-actions .btn-cta-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(26,95,220,0.55);
    color: var(--white);
}
.hero-cta-actions .btn-cta-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 30px;
    background: transparent;
    color: var(--white);
    border: 1.5px solid rgba(255,255,255,0.2);
    border-radius: 6px;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.3s ease;
}
.hero-cta-actions .btn-cta-outline:hover {
    border-color: var(--accent-light);
    color: var(--accent-light);
    background: rgba(200,148,62,0.08);
    transform: translateY(-3px);
}

/* ========== 公司简介 - 图文交错 ========== */
.about-intro {
    padding: 90px 0;
}
.about-intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 70px;
    align-items: center;
}
.about-intro-media {
    position: relative;
}
.about-intro-img-wrap {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    position: relative;
}
.about-intro-img-wrap img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    display: block;
}
.about-intro-badge {
    position: absolute;
    bottom: -16px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--white);
    padding: 12px 28px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 6px 24px rgba(26,95,220,0.3);
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}
.about-intro-badge i {
    font-size: 18px;
}
.about-intro-text .section-tag {
    margin-bottom: 10px;
}
.about-intro-text .section-title {
    font-size: 32px;
    margin-bottom: 20px;
}
.about-intro-text p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.9;
    margin-bottom: 15px;
}
.about-intro-highlights {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-top: 30px;
}
.aih-item {
    text-align: center;
    padding: 18px 10px;
    background: var(--bg-light);
    border-radius: var(--radius);
    transition: var(--transition);
    border: 1px solid transparent;
}
.aih-item:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-card);
}
.aih-item i {
    font-size: 22px;
    color: var(--primary);
    margin-bottom: 8px;
    display: block;
}
.aih-item strong {
    display: block;
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 3px;
}
.aih-item span {
    font-size: 12px;
    color: var(--text-muted);
}

/* ========== 战略合作伙伴 Logo墙 ========== */
.about-partners {
    padding: 80px 0;
    background: var(--bg-light);
}
.partner-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
}
.partner-logo-item {
    background: var(--white);
    padding: 22px 32px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    font-size: 17px;
    font-weight: 700;
    color: var(--dark);
    transition: var(--transition);
    border: 1px solid var(--border);
    text-align: center;
    min-width: 130px;
}
.partner-logo-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
    color: var(--primary);
}

/* ========== 核心优势 V2 - 左右交错布局 ========== */
.about-advantages-v2 {
    padding: 90px 0;
}
.adv-v2-list {
    display: flex;
    flex-direction: column;
    gap: 50px;
    margin-top: 50px;
}
.adv-v2-row {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 50px;
    align-items: center;
}
.adv-v2-row.adv-v2-reverse {
    grid-template-columns: 1fr 300px;
}
.adv-v2-row.adv-v2-reverse .adv-v2-media {
    order: 2;
}
.adv-v2-row.adv-v2-reverse .adv-v2-text {
    order: 1;
}
.adv-v2-media {
    display: flex;
    justify-content: center;
}
.adv-v2-icon-wrap {
    width: 160px;
    height: 160px;
    background: linear-gradient(135deg, rgba(26,95,220,0.06), rgba(200,148,62,0.06));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 56px;
    color: var(--primary);
    transition: var(--transition);
    position: relative;
}
.adv-v2-icon-wrap::after {
    content: '';
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    border: 2px dashed rgba(26,95,220,0.15);
    animation: spinSlow 20s linear infinite;
}
@keyframes spinSlow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
.adv-v2-row:hover .adv-v2-icon-wrap {
    background: var(--primary);
    color: var(--white);
    transform: scale(1.06);
}
.adv-v2-row:hover .adv-v2-icon-wrap::after {
    border-color: rgba(26,95,220,0.4);
}
.adv-v2-text h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 14px;
    position: relative;
    padding-left: 18px;
}
.adv-v2-text h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 22px;
    background: var(--primary);
    border-radius: 2px;
}
.adv-v2-text p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.9;
}

/* ========== 工厂生产实力 ========== */
.about-factory {
    padding: 90px 0;
    background: var(--bg-light);
}
.about-factory-intro {
    max-width: 900px;
    margin: 0 auto 50px;
}
.about-factory-intro p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 2;
    margin-bottom: 15px;
    text-indent: 2em;
}
.factory-showcase {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 20px;
}
.factory-showcase-main {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    aspect-ratio: 1 / 1;
}
.factory-showcase-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s ease;
}
.factory-showcase-main:hover img {
    transform: scale(1.05);
}
.factory-showcase-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 30px;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: var(--white);
}
.factory-showcase-caption h4 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 6px;
}
.factory-showcase-caption p {
    font-size: 14px;
    opacity: 0.8;
}
.factory-showcase-side {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.factory-showcase-item {
    flex: 1;
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-card);
}
.factory-showcase-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s ease;
}
.factory-showcase-item:hover img {
    transform: scale(1.06);
}
.factory-showcase-item span {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 10px 16px;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    color: var(--white);
    font-size: 14px;
    font-weight: 600;
}

/* ========== 抗疫贡献 - 横向横幅 ========== */
.about-covid-banner {
    padding: 0;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}
.covid-banner-inner {
    display: flex;
    align-items: center;
    gap: 40px;
    padding: 50px 0;
}
.covid-banner-icon {
    flex-shrink: 0;
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 38px;
    color: var(--white);
    box-shadow: 0 8px 32px rgba(200,148,62,0.35);
}
.covid-banner-text h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
}
.covid-banner-text p {
    font-size: 15px;
    color: rgba(255,255,255,0.7);
    line-height: 1.9;
}

/* ========== 全国工程业绩 ========== */
.about-projects {
    padding: 90px 0;
    background: var(--white);
}
.projects-map {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 40px;
}
.project-region-card {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 24px;
    transition: var(--transition);
    border: 1px solid transparent;
}
.project-region-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
    transform: translateY(-3px);
}
.prc-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}
.prc-header i {
    color: var(--primary);
    font-size: 20px;
}
.prc-header h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
}
.project-region-card ul {
    display: flex;
    flex-direction: column;
    gap: 7px;
}
.project-region-card ul li {
    font-size: 14px;
    color: var(--text-light);
    padding-left: 14px;
    position: relative;
}
.project-region-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 9px;
    width: 5px;
    height: 5px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.5;
}

/* ========== 资质荣誉 + 企业文化 合并区块 ========== */
.about-cert-values {
    padding: 90px 0;
    background: var(--bg-light);
}
.acv-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}
.acv-col .section-tag {
    margin-bottom: 10px;
}
.acv-col .section-title {
    font-size: 30px;
    margin-bottom: 15px;
}
.acv-desc {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 25px;
}
.cert-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.cert-list-item {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--white);
    padding: 18px 22px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    transition: var(--transition);
    border: 1px solid transparent;
}
.cert-list-item:hover {
    border-color: var(--primary);
    transform: translateX(5px);
    box-shadow: var(--shadow);
}
.cert-list-icon {
    width: 48px;
    height: 48px;
    background: rgba(26,95,220,0.07);
    color: var(--primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
    transition: var(--transition);
}
.cert-list-item:hover .cert-list-icon {
    background: var(--primary);
    color: var(--white);
}
.cert-list-item div {
    display: flex;
    flex-direction: column;
}
.cert-list-item strong {
    font-size: 15px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 3px;
}
.cert-list-item span {
    font-size: 13px;
    color: var(--text-muted);
}

/* 企业文化卡片 */
.values-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}
.value-card-item {
    background: var(--white);
    padding: 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}
.value-card-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}
.vci-icon {
    width: 54px;
    height: 54px;
    margin: 0 auto 12px;
    background: rgba(26,95,220,0.07);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    transition: var(--transition);
}
.value-card-item:hover .vci-icon {
    background: var(--primary);
    color: var(--white);
}
.vci-text h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 6px;
}
.vci-text p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}
.acv-closing {
    font-size: 16px;
    color: var(--primary);
    font-weight: 600;
    line-height: 1.8;
}

/* ========== 滚动动画 ========== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .products-grid { grid-template-columns: repeat(3, 1fr); }
    .cases-grid { grid-template-columns: repeat(2, 1fr); }
    .adv-panel-inner { grid-template-columns: 1fr; }
    .about-row { grid-template-columns: 1fr; }
    .contact-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .cta-row { flex-direction: column; text-align: center; gap: 25px; }
    .cta-action { flex-direction: column; }
    /* CTA V2 响应式 - 已合并到 Banner */
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .projects-grid { grid-template-columns: repeat(2, 1fr); }
    .values-row { grid-template-columns: 1fr; }
    .values-cards { flex-direction: row; }

    /* 关于我们新布局响应式 */
    .about-hero-v2 { min-height: auto; }
    .about-hero-body { padding: 60px 20px 0; }
    .about-hero-top { flex-direction: column; align-items: flex-start; padding-bottom: 30px; }
    .about-hero-stats { flex-wrap: wrap; gap: 0; }
    .ahs-item { padding: 15px 20px; min-width: 100px; }
    .ahs-num { font-size: 32px; }
    .about-hero-cta { flex-direction: column; text-align: center; gap: 20px; padding: 20px; }
    .hero-cta-text { flex-direction: column; }
    .hero-cta-actions { flex-direction: column; width: 100%; }
    .hero-cta-actions .btn-cta-primary,
    .hero-cta-actions .btn-cta-outline { width: 100%; justify-content: center; }
    .about-intro-grid { grid-template-columns: 1fr; gap: 50px; }
    .about-intro-img-wrap img { aspect-ratio: 1 / 1; height: auto; }
    .adv-v2-row, .adv-v2-row.adv-v2-reverse { grid-template-columns: 1fr; gap: 30px; }
    .adv-v2-row.adv-v2-reverse .adv-v2-media { order: 1; }
    .adv-v2-row.adv-v2-reverse .adv-v2-text { order: 2; }
    .adv-v2-media { justify-content: flex-start; }
    .adv-v2-icon-wrap { width: 100px; height: 100px; font-size: 40px; }
    .factory-showcase { grid-template-columns: 1fr; }
    .factory-showcase-main { aspect-ratio: 1 / 1; height: auto; }
    .factory-showcase-side { flex-direction: row; }
    .factory-showcase-item { aspect-ratio: 1 / 1; min-height: auto; }
    .projects-map { grid-template-columns: repeat(3, 1fr); }
    .acv-grid { grid-template-columns: 1fr; gap: 50px; }
    .covid-banner-inner { flex-direction: column; text-align: center; gap: 20px; padding: 40px 0; }
}

@media (max-width: 768px) {
    .top-bar .top-welcome { display: none; }
    .header-tel { display: none; }
    .mobile-toggle { display: flex; }

    .nav {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        background: var(--dark);
        padding: 0;
        box-shadow: var(--shadow);
        transform: translateY(-120%);
        transition: transform 0.3s ease;
        z-index: 999;
        margin-top: 56px;
        max-height: calc(100vh - 56px);
        overflow-y: auto;
    }
    .nav .container {
        padding: 0;
    }
    .nav.active { transform: translateY(0); }
    .nav ul { flex-direction: column; gap: 0; }
    .nav ul li { flex: none; text-align: left; }
    .nav ul li a {
        padding: 14px 20px;
        border-bottom: 1px solid rgba(255,255,255,0.06);
        color: rgba(255,255,255,0.82);
    }
    .nav ul li a::after { display: none; }
    .nav ul li a:hover,
    .nav ul li a.active {
        background: rgba(61,122,240,0.12);
        color: var(--primary-light);
    }

    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        border-radius: 0;
        width: 100%;
        padding: 0;
        background: rgba(0,0,0,0.15);
    }
    .dropdown-menu::before { display: none; }
    .dropdown-grid { display: block; }
    .dropdown-item {
        display: block;
        padding: 12px 20px 12px 36px;
        border-bottom: 1px solid rgba(255,255,255,0.06);
        color: rgba(255,255,255,0.75) !important;
    }
    .dropdown-item:hover { background: rgba(26,95,220,0.08); }
    .dropdown-item i { margin-right: 8px; color: var(--primary-light); }
    .dropdown-item strong { color: rgba(255,255,255,0.9); font-weight: 500; }
    .dropdown-item span { color: rgba(255,255,255,0.5); }

    .hero-content h1 { font-size: 34px; }
    .hero-stats { flex-wrap: wrap; gap: 25px; justify-content: center; }
    .stat-item:not(:last-child)::after { display: none; }
    .stat-num, .stat-plus { font-size: 32px; }
    .hero { min-height: 500px; }

    .features-grid { grid-template-columns: 1fr 1fr; margin-top: 0; }
    .features { margin-top: 0; padding: 40px 0; }

    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: 1fr; }
    .cases-grid { grid-template-columns: repeat(2, 1fr); }

    .section-title { font-size: 30px; }
    .about-text-col .section-title { font-size: 24px; }

    .footer-grid { grid-template-columns: 1fr; }
    .contact-form { padding: 25px; }
    .contact-form .form-row,
    .contact-form-wrap .form-row { grid-template-columns: 1fr; }

    .side-tools { right: 10px; bottom: 80px; }

    .contact-qr-body {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    .contact-qr-img { width: 80px; height: 80px; }

    /* 关于我们新布局 768 响应式 */
    .about-hero-v2 { min-height: auto; }
    .about-hero-left h1 { font-size: 36px; }
    .about-hero-sub { font-size: 15px; }
    .about-hero-stats { width: 100%; justify-content: flex-start; }
    .ahs-item { padding: 12px 16px; min-width: auto; flex: 1; }
    .ahs-num { font-size: 28px; }
    .about-intro-highlights { grid-template-columns: repeat(2, 1fr); }
    .partner-logo-item { min-width: 100px; padding: 16px 20px; font-size: 14px; }
    .projects-map { grid-template-columns: repeat(2, 1fr); }
    .values-list { grid-template-columns: 1fr; }
    .factory-showcase-side { flex-direction: column; }
    .factory-showcase-item { min-height: 180px; }
}

@media (max-width: 480px) {
    .products-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .cases-grid { grid-template-columns: 1fr; }
    .about-features { grid-template-columns: 1fr; }
    .hero-content h1 { font-size: 28px; }
    .hero-content > p { font-size: 14px; }
    .hero-btns { flex-direction: column; }

    /* 关于我们新布局 480 响应式 */
    .about-hero-left h1 { font-size: 30px; }
    .about-hero-stats { flex-wrap: wrap; }
    .ahs-item { padding: 10px 14px; border-left: none; border-bottom: 1px solid rgba(255,255,255,0.1); flex: 1 1 45%; }
    .about-intro-highlights { grid-template-columns: repeat(2, 1fr); }
    .partner-logos { gap: 10px; }
    .partner-logo-item { min-width: 80px; padding: 12px 16px; font-size: 13px; }
    .adv-v2-list { gap: 30px; }
    .projects-map { grid-template-columns: 1fr; }
    .cert-list-item { padding: 14px 16px; }
    .acv-col .section-title { font-size: 24px; }
}

/* ============================================================
   产品列表页 - productlist.html
   ============================================================ */

/* ========== 页面 Banner ========== */
.pl-hero {
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark3) 100%);
    padding: 50px 0;
    text-align: center;
}
.pl-hero-content h1,
.pl-hero-title {
    font-size: 38px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 10px;
}
.pl-hero-content > p {
    font-size: 16px;
    color: rgba(255,255,255,0.55);
    margin-bottom: 12px;
}
.pl-hero-content .breadcrumb {
    font-size: 14px;
    color: rgba(255,255,255,0.35);
}
.pl-hero-content .breadcrumb a {
    color: var(--accent-light);
}
.pl-hero-content .breadcrumb a:hover { color: var(--white); }
.pl-hero-content .breadcrumb span { margin: 0 6px; }

/* ========== 主体布局 ========== */
.pl-main {
    padding: 50px 0 70px;
    background: var(--bg);
}
.pl-layout {
    display: grid;
    grid-template-columns: 270px 1fr;
    gap: 30px;
    align-items: start;
}

/* ========== 左侧边栏 ========== */
.pl-sidebar {
    position: sticky;
    top: 90px;
}
.pl-sidebar-block {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    margin-bottom: 20px;
    overflow: hidden;
}
.pl-sidebar-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--white);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.pl-sidebar-title i { font-size: 16px; }

/* 分类列表 */
.pl-cat-list { padding: 6px 0; }
.pl-cat-item {
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--bg);
    transition: var(--transition);
}
.pl-cat-item:last-child { border-bottom: none; }
.pl-cat-item a {
    flex: 1;
    padding: 12px 20px;
    font-size: 14px;
    color: var(--text);
    position: relative;
    transition: var(--transition);
    text-decoration: none;
}
.pl-cat-item a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: var(--primary);
    border-radius: 0 3px 3px 0;
    transition: height 0.3s ease;
}
.pl-cat-item:hover a,
.pl-cat-item.active a {
    color: var(--primary);
    background: rgba(26,95,220,0.04);
    padding-left: 28px;
}
.pl-cat-item:hover a::before,
.pl-cat-item.active a::before {
    height: 20px;
}
.pl-cat-count {
    font-size: 12px;
    color: var(--text-muted);
    background: var(--bg-light);
    padding: 2px 8px;
    border-radius: 10px;
    margin-right: 14px;
    flex-shrink: 0;
}
.pl-cat-item:hover .pl-cat-count,
.pl-cat-item.active .pl-cat-count {
    background: var(--primary);
    color: var(--white);
}

/* 热门产品 */
.pl-hot-list { padding: 12px; }
.pl-hot-item {
    display: flex;
    gap: 12px;
    padding: 10px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    margin-bottom: 8px;
}
.pl-hot-item:last-child { margin-bottom: 0; }
.pl-hot-item:hover {
    background: var(--bg-light);
    transform: translateX(4px);
}
.pl-hot-img {
    width: 80px;
    aspect-ratio: 1 / 1;
    border-radius: 4px;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--bg);
}
.pl-hot-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.pl-hot-info h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 4px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.pl-hot-price {
    font-size: 13px;
    color: var(--accent);
    font-weight: 700;
}

/* 联系区块 */
.pl-contact-block .pl-sidebar-title {
    background: linear-gradient(135deg, var(--accent), #a67c2e);
}
.pl-contact-body {
    padding: 20px;
    text-align: center;
}

/* 联系方式列表 */
.pl-contact-info-list {
    list-style: none;
    padding: 0;
    margin: 0 0 16px;
    text-align: left;
}
.pl-contact-info-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px dashed var(--border);
}
.pl-contact-info-list li:last-child {
    border-bottom: none;
}
.pl-contact-info-list li i {
    width: 18px;
    font-size: 14px;
    color: var(--primary);
    text-align: center;
    margin-top: 2px;
    flex-shrink: 0;
}
.pl-contact-label {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 1px;
}
.pl-contact-info-list li strong {
    font-size: 13px;
    color: var(--dark);
    font-weight: 600;
}

/* 二维码 */
.pl-contact-qr {
    margin-bottom: 16px;
    padding-top: 4px;
}
.pl-contact-qr img {
    width: 130px;
    height: 130px;
    margin: 0 auto 6px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}
.pl-contact-qr p {
    font-size: 12px;
    color: var(--text-muted);
}
.pl-contact-btn {
    width: 100%;
    justify-content: center;
    background: var(--primary);
    color: var(--white);
    font-size: 14px;
    padding: 11px 20px;
}
.pl-contact-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* ========== 右侧内容区 ========== */
.pl-content {
    min-width: 0;
    display: flex;
    flex-direction: column;
}
.pl-content > .pl-grid {
    flex: 1;
}

/* 工具栏 */
.pl-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--white);
    padding: 14px 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    margin-bottom: 20px;
}
.pl-result-count {
    font-size: 14px;
    color: var(--text-light);
}
.pl-result-count strong { color: var(--primary); }
.pl-toolbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-light);
}
.pl-sort-select {
    padding: 7px 30px 7px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text);
    background: var(--white);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    outline: none;
    transition: var(--transition);
}
.pl-sort-select:focus { border-color: var(--primary); }

/* 产品网格 - 一排三个 */
.pl-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

/* 产品卡片 */
.pl-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid transparent;
}
.pl-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}
.pl-card-img {
    display: block;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background: var(--bg);
    position: relative;
    cursor: pointer;
}
.pl-card-img > img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
/* 大图预览遮罩 */
.pl-zoom-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 9999;
    background: rgba(0,0,0,0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}
.pl-zoom-overlay.active {
    opacity: 1;
    visibility: visible;
}
.pl-zoom-overlay img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 10px 50px rgba(0,0,0,0.5);
}
.pl-zoom-close {
    position: absolute;
    top: 20px;
    right: 30px;
    width: 44px;
    height: 44px;
    background: rgba(255,255,255,0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    transition: background 0.3s ease;
    z-index: 10;
}
.pl-zoom-close:hover {
    background: rgba(255,255,255,0.3);
}
.pl-card:hover .pl-card-img img {
    transform: scale(1.06);
}
.pl-card-body {
    padding: 16px 18px;
    text-align: center;
}
.pl-card-body h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
}
.pl-card-body h3 a {
    color: var(--dark);
    transition: var(--transition);
}
.pl-card-body h3 a:hover { color: var(--primary); }
.pl-card-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 14px;
}
.pl-card-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    background: var(--primary);
    color: var(--white);
    font-size: 13px;
    font-weight: 500;
    border-radius: 20px;
    text-decoration: none;
    transition: var(--transition);
}
.pl-card-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26,95,220,0.3);
    color: var(--white);
}

/* 分页 */
.pl-pagination {
    display: flex;
    justify-content: center;
}
.pl-pagination ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 6px;
}
.pl-pagination ul li {
    margin: 0;
}
.pl-pagination ul li a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 10px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text);
    text-decoration: none;
    transition: var(--transition);
}
.pl-pagination ul li a:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: #fdf6e8;
}
.pl-pagination ul li a.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
    font-weight: 600;
}
.pl-pagination ul li a.pl-page-prev,
.pl-pagination ul li a.pl-page-next {
    gap: 6px;
    padding: 0 14px;
}
.pl-pagination ul li a.pl-page-prev i,
.pl-pagination ul li a.pl-page-next i {
    font-size: 12px;
}

/* ========== 响应式 - 产品列表页 ========== */
@media (max-width: 1024px) {
    .pl-grid { grid-template-columns: repeat(2, 1fr); }
    .pl-card-img { aspect-ratio: 1 / 1; height: auto; }
}

@media (max-width: 768px) {
    .pl-layout {
        grid-template-columns: 1fr;
    }
    .pl-sidebar {
        position: static;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 15px;
    }
    .pl-sidebar-block { margin-bottom: 0; }
    .pl-contact-block { grid-column: span 2; }
    .pl-grid { grid-template-columns: repeat(2, 1fr); gap: 15px; }
    .pl-card-img { aspect-ratio: 1 / 1; height: auto; }
    .pl-hero-content h1,
    .pl-hero-title { font-size: 30px; }
    .pl-toolbar { flex-direction: column; gap: 10px; align-items: flex-start; }
}

@media (max-width: 480px) {
    .pl-sidebar {
        grid-template-columns: 1fr;
    }
    .pl-contact-block { grid-column: span 1; }
    .pl-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .pl-card-img { aspect-ratio: 1 / 1; height: auto; }
    .pl-card-body { padding: 12px 12px; }
    .pl-card-body h3 { font-size: 14px; }
    .pl-card-desc { font-size: 12px; }
    .pl-hero-content h1,
    .pl-hero-title { font-size: 26px; }
}

/* ============================================================
   新闻资讯列表页 - articlelist.html
   ============================================================ */

/* 文章列表 */
.al-list {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
}

/* 文章卡片 - 横向排列 */
.al-card {
    display: flex;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid transparent;
}
.al-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(26,95,220,0.2);
}
.al-card-img {
    width: 260px;
    height: 180px;
    flex-shrink: 0;
    display: block;
    overflow: hidden;
    background: var(--bg);
}
.al-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.al-card:hover .al-card-img img {
    transform: scale(1.06);
}
.al-card-body {
    flex: 1;
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

/* 元信息行 */
.al-card-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}
.al-card-tag {
    display: inline-block;
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 3px;
    font-weight: 500;
}
.al-card-date,
.al-card-views {
    font-size: 13px;
    color: var(--text-muted);
}
.al-card-date i,
.al-card-views i {
    margin-right: 4px;
    font-size: 12px;
}

/* 标题 */
.al-card-body h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.5;
}
.al-card-body h3 a {
    color: var(--dark);
    transition: var(--transition);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.al-card-body h3 a:hover {
    color: var(--primary);
}

/* 摘要 */
.al-card-body > p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 14px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 阅读全文 */
.al-card-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    align-self: flex-start;
}
.al-card-more i {
    font-size: 12px;
    transition: transform 0.3s ease;
}
.al-card-more:hover {
    color: var(--primary-dark);
}
.al-card-more:hover i {
    transform: translateX(4px);
}


/* ========== 响应式 - 新闻列表页 ========== */
@media (max-width: 1024px) {
    .al-card-img {
        width: 200px;
        height: 140px;
    }
    .al-card-body h3 {
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .al-card {
        flex-direction: column;
    }
    .al-card-img {
        width: 100%;
        aspect-ratio: 16 / 9;
        height: auto;
    }
    .al-card-body {
        padding: 16px 18px;
    }
    .al-card-body h3 {
        font-size: 16px;
    }
    .al-card-body > p {
        font-size: 13px;
    }
    .al-card-meta {
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .al-card-img {
        aspect-ratio: 16 / 10;
    }
    .al-card-body {
        padding: 14px 14px;
    }
    .al-card-body h3 {
        font-size: 15px;
    }
    .al-card-meta {
        gap: 8px;
    }
    .al-card-tag {
        font-size: 11px;
        padding: 2px 8px;
    }
}

/* ============================================================
   联系我们页面 - contact.html
   ============================================================ */

/* ========== 联系方式 + 留言表单 ========== */
.contact-page-main {
    padding: 80px 0;
    background: var(--bg-light);
}
.contact-page-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: stretch;
}
.contact-page-info,
.contact-page-form {
    display: flex;
    flex-direction: column;
}
.contact-page-info .contact-page-details,
.contact-page-info .contact-page-qr-row {
    flex-shrink: 0;
}
.contact-page-form {
    position: sticky;
    top: 90px;
}
.contact-form-wrap {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* 左侧联系方式 */
.contact-page-info .section-title {
    font-size: 30px;
    margin-bottom: 12px;
}
.contact-page-subtitle {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.8;
}
.contact-page-details {
    display: flex;
    flex-direction: column;
    gap: 0;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    margin-bottom: 25px;
}
.cpd-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 24px;
    border-bottom: 1px solid var(--bg);
    transition: var(--transition);
}
.cpd-item:last-child {
    border-bottom: none;
}
.cpd-item:hover {
    background: rgba(26,95,220,0.03);
}
.cpd-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(26,95,220,0.08), rgba(26,95,220,0.04));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--primary);
    flex-shrink: 0;
    transition: var(--transition);
}
.cpd-item:hover .cpd-icon {
    background: var(--primary);
    color: var(--white);
    transform: scale(1.05);
}
.cpd-body {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.cpd-label {
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}
.cpd-body strong {
    font-size: 16px;
    color: var(--dark);
    font-weight: 600;
}

/* 二维码区域 */
.contact-page-qr-row {
    display: flex;
    gap: 30px;
    align-items: center;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 24px;
}
.contact-page-qr {
    text-align: center;
    flex-shrink: 0;
}
.contact-page-qr img {
    width: 110px;
    height: 110px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    padding: 4px;
    background: var(--white);
    margin-bottom: 8px;
    object-fit: contain;
}
.contact-page-qr p {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.6;
}
.contact-page-qr-tips {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.contact-page-qr-tips p {
    font-size: 14px;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 8px;
}
.contact-page-qr-tips p i {
    color: var(--primary);
    font-size: 16px;
}

/* 右侧留言表单 */
.contact-form-wrap {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
    border-top: 4px solid var(--primary);
    position: relative;
    overflow: hidden;
}
.contact-form-wrap::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 140px;
    height: 140px;
    background: rgba(26,95,220,0.03);
    border-radius: 50%;
    pointer-events: none;
}
.contact-form-wrap h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
    position: relative;
}
.contact-form-wrap h3 i {
    color: var(--primary);
    margin-right: 6px;
}
.contact-form-wrap > p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 28px;
    position: relative;
}
.contact-form-wrap .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 0;
}
.contact-form-wrap .form-group {
    margin-bottom: 18px;
    position: relative;
}
.contact-form-wrap .form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}
.contact-form-wrap .form-group label span {
    color: #e74c3c;
}
.contact-form-wrap .input-icon-wrap {
    position: relative;
}
.contact-form-wrap .input-icon-wrap i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 14px;
    transition: var(--transition);
    z-index: 1;
    pointer-events: none;
}
.contact-form-wrap .input-icon-wrap input,
.contact-form-wrap .input-icon-wrap select {
    padding-left: 40px;
}
.contact-form-wrap input,
.contact-form-wrap textarea,
.contact-form-wrap select {
    width: 100%;
    padding: 13px 16px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    font-family: var(--font);
    color: var(--text);
    background: var(--bg-light);
    transition: var(--transition);
    outline: none;
}
.contact-form-wrap input:focus,
.contact-form-wrap textarea:focus,
.contact-form-wrap select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26,95,220,0.1);
    background: var(--white);
}
.contact-form-wrap .input-icon-wrap:focus-within i {
    color: var(--primary);
}
.contact-form-wrap textarea {
    resize: vertical;
    min-height: 120px;
}
.contact-form-wrap select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
    cursor: pointer;
}
.contact-form-wrap .btn-block {
    margin-top: 8px;
    padding: 15px;
    font-size: 16px;
    font-weight: 600;
    gap: 10px;
    border-radius: 6px;
    letter-spacing: 0.5px;
}

/* 验证码 */
.captcha-row {
    display: flex !important;
    grid-template-columns: none !important;
    align-items: flex-end;
    gap: 12px;
}
.captcha-row .form-group {
    flex: 1;
    margin-bottom: 0;
    min-width: 0;
}
.captcha-row .captcha-input {
    margin-bottom: 0;
}
.captcha-img-box {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    margin-bottom: 0;
    padding-top: 26px;
}
.captcha-img-box canvas {
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: var(--transition);
    display: block;
    height: 46px;
}
.captcha-img-box canvas:hover {
    border-color: var(--primary);
}
.captcha-img-box canvas {
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: var(--transition);
    display: block;
}
.captcha-img-box canvas:hover {
    border-color: var(--primary);
}
.captcha-refresh {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--bg-light);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}
.captcha-refresh:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

/* ========== 全国服务网络 ========== */
.contact-branches {
    padding: 80px 0;
    background: var(--white);
}
.branches-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 40px;
}
.branch-card {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    transition: var(--transition);
    border: 1px solid transparent;
}
.branch-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}
.branch-card-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 18px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}
.branch-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, rgba(26,95,220,0.08), rgba(26,95,220,0.04));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--primary);
    flex-shrink: 0;
    transition: var(--transition);
}
.branch-card:hover .branch-icon {
    background: var(--primary);
    color: var(--white);
}
.branch-card-header h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 2px;
}
.branch-card-header span {
    font-size: 13px;
    color: var(--text-muted);
}
.branch-info-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.branch-info-list li {
    font-size: 14px;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 8px;
}
.branch-info-list li i {
    color: var(--primary);
    font-size: 14px;
    width: 16px;
    text-align: center;
    flex-shrink: 0;
}

/* ========== 联系我们 Banner（含服务承诺条） ========== */
.contact-hero {
    position: relative;
    display: flex;
    align-items: center;
    min-height: 350px;
    overflow: hidden;
}
.contact-hero-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 0;
}
.contact-hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.contact-hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(8,16,28,0.93) 0%, rgba(15,28,46,0.88) 50%, rgba(20,38,62,0.9) 100%);
    z-index: 1;
}
.contact-hero-body {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 60px 20px 0;
}
.contact-hero-top {
    text-align: center;
    padding-bottom: 30px;
}
.contact-hero-top h1 {
    font-size: 44px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 15px;
}
.contact-hero-top .breadcrumb {
    font-size: 15px;
    color: rgba(255,255,255,0.5);
}
.contact-hero-top .breadcrumb a {
    color: rgba(255,255,255,0.5);
    transition: var(--transition);
}
.contact-hero-top .breadcrumb a:hover {
    color: var(--white);
}

/* 服务承诺条（嵌入 Banner 底部） */
.contact-hero-promise {
    background: transparent;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: 18px 30px;
    width: 100%;
}
.contact-hero-promise .promise-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.contact-hero-promise .promise-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    color: var(--text);
    background: #fff;
    border-radius: var(--radius);
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    transition: var(--transition);
}
.contact-hero-promise .promise-item:hover {
    box-shadow: 0 3px 12px rgba(0,0,0,0.10);
    transform: translateY(-2px);
}
.contact-hero-promise .promise-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, rgba(26,95,220,0.08), rgba(26,95,220,0.04));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--primary);
    flex-shrink: 0;
    transition: var(--transition);
}
.contact-hero-promise .promise-item:hover .promise-icon {
    background: var(--primary);
    color: var(--white);
    transform: scale(1.08);
}
.contact-hero-promise .promise-item h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1px;
}
.contact-hero-promise .promise-item p {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.4;
}
/* ========== 联系我们页响应式 ========== */
@media (max-width: 1024px) {
    .branches-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .contact-hero-promise .promise-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .contact-hero {
        min-height: 300px;
    }
    .contact-hero-body {
        padding: 50px 15px 0;
    }
    .contact-hero-top {
        padding-bottom: 24px;
    }
    .contact-hero-top h1 {
        font-size: 32px;
    }
    .contact-hero-promise {
        padding: 14px 20px;
    }
    .contact-page-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .contact-page-form {
        position: static;
    }
    .contact-page-info .section-title {
        font-size: 26px;
    }
    .contact-form-wrap {
        padding: 28px;
    }
    .contact-form-wrap .form-row {
        grid-template-columns: 1fr;
    }
    .contact-page-qr-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    .branches-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    .branch-card {
        padding: 22px 18px;
    }
    .contact-hero-promise .promise-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .contact-page-main {
        padding: 50px 0;
    }
    .contact-page-info .section-title {
        font-size: 22px;
    }
    .cpd-item {
        padding: 14px 18px;
        gap: 12px;
    }
    .cpd-icon {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
    .cpd-body strong {
        font-size: 14px;
    }
    .contact-form-wrap {
        padding: 22px;
    }
    .contact-form-wrap h3 {
        font-size: 20px;
    }
    .branches-grid {
        grid-template-columns: 1fr;
    }
    .contact-hero-promise .promise-grid {
        grid-template-columns: 1fr;
    }
}

/* ========== 百度地图 ========== */
.contact-map {
    padding: 80px 0 0;
}
.map-wrapper {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}
.baidu-map-container {
    width: 100%;
    height: 450px;
    border-top: 1px solid var(--border);
}
@media (max-width: 768px) {
    .contact-map {
        padding: 60px 0 0;
    }
    .baidu-map-container {
        height: 320px;
    }
}
/* ========== 404 页面 ========== */
.page-404 {
    padding: 100px 0 80px;
    min-height: 60vh;
    display: flex;
    align-items: center;
    background: var(--bg);
}
.page-404-body {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

/* 404 大数字 */
.page-404-code {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
}
.page-404-code .code-4,
.page-404-code .code-0 {
    font-size: 120px;
    font-weight: 900;
    line-height: 1;
    color: var(--dark);
}
.page-404-code .code-0 {
    color: var(--primary);
    font-size: 100px;
}

/* 标题 */
.page-404-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
}
.page-404-desc {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 40px;
}

/* 按钮组 */
.page-404-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 50px;
}
.page-404-actions .btn-lg {
    padding: 14px 32px;
    font-size: 16px;
}

/* 推荐链接 */
.page-404-suggest {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px 40px;
    box-shadow: var(--shadow-card);
    text-align: left;
}
.page-404-suggest h3 {
    font-size: 18px;
    color: var(--dark);
    margin-bottom: 20px;
    text-align: center;
}
.page-404-suggest h3 i {
    color: var(--accent);
    margin-right: 8px;
}
.suggest-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}
.suggest-links a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    background: var(--bg);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 15px;
    text-decoration: none;
    transition: var(--transition);
}
.suggest-links a i {
    color: var(--primary);
    width: 20px;
    text-align: center;
    transition: var(--transition);
}
.suggest-links a:hover {
    background: var(--primary);
    color: var(--white);
}
.suggest-links a:hover i {
    color: var(--white);
}

@media (max-width: 768px) {
    .page-404 {
        padding: 60px 0 50px;
    }
    .page-404-code .code-4,
    .page-404-code .code-0 {
        font-size: 80px;
    }
    .page-404-code .code-0 {
        font-size: 66px;
    }
    .page-404-title {
        font-size: 22px;
    }
    .page-404-desc {
        font-size: 14px;
    }
    .page-404-actions {
        flex-direction: column;
        align-items: center;
    }
    .page-404-actions .btn-lg {
        width: 100%;
        max-width: 260px;
    }
    .suggest-links {
        grid-template-columns: 1fr 1fr;
    }
    .page-404-suggest {
        padding: 24px 20px;
    }
}
/* ============================================================
   新闻内容详情页 - article.html
   ============================================================ */

/* 文章容器 */
.ar-article {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    padding: 40px;
    margin-bottom: 30px;
}

/* 文章头部 */
.ar-header {
    border-bottom: 1px solid var(--border);
    padding-bottom: 24px;
    margin-bottom: 28px;
}
.ar-header h1 {
    font-size: 28px;
    font-weight: 800;
    color: var(--dark);
    line-height: 1.45;
    margin-bottom: 0;
}
.ar-meta {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}
.ar-meta-item {
    font-size: 13px;
    color: var(--text-muted);
}
.ar-meta-item i {
    margin-right: 4px;
    color: var(--primary);
}

/* 文章正文 */
.ar-body {
    font-size: 16px;
    color: var(--text);
    line-height: 2;
}
.ar-body p {
    margin-bottom: 20px;
    text-indent: 2em;
}
.ar-body h2 {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
    margin: 36px 0 16px;
    padding-left: 16px;
    border-left: 4px solid var(--primary);
    line-height: 1.4;
}
.ar-body h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--dark);
    margin: 24px 0 12px;
}
.ar-body strong {
    color: var(--dark);
}
.ar-body ul,
.ar-body ol {
    margin: 16px 0 20px 1.5em;
}
.ar-body ul li,
.ar-body ol li {
    margin-bottom: 10px;
}

/* 附件下载 */
.ar-attachments {
    margin-top: 40px;
}
.ar-attach-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 20px;
    background: var(--bg-light);
    border-radius: 8px;
    border: 1px solid var(--border);
}
.ar-attach-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: #fef0f0;
    color: #e60012;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}
.ar-attach-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.ar-attach-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.ar-attach-meta {
    font-size: 12px;
    color: var(--text-light);
}
.ar-attach-dl {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    background: var(--primary);
    color: var(--white);
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    text-decoration: none;
    transition: background 0.25s ease;
}
.ar-attach-dl:hover {
    background: #c0392b;
}

/* 文章底部 */
.ar-footer {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

/* 标签 */
.ar-tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}
.ar-tags-label {
    font-size: 14px;
    color: var(--text-light);
    font-weight: 600;
}
.ar-tags-label i {
    color: var(--primary);
    margin-right: 2px;
}
.ar-tags a {
    display: inline-block;
    padding: 5px 14px;
    background: var(--bg-light);
    color: var(--text-light);
    border-radius: 20px;
    font-size: 13px;
    border: 1px solid var(--border);
    transition: var(--transition);
}
.ar-tags a:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

/* 上下篇导航 */
.ar-prevnext {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.ar-prev,
.ar-next {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 18px 20px;
    background: var(--bg-light);
    border-radius: var(--radius);
    transition: var(--transition);
    text-decoration: none;
    border: 1px solid transparent;
}
.ar-prev:hover,
.ar-next:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-card);
}
.ar-next {
    text-align: right;
    align-items: flex-end;
}
.ar-pn-label {
    font-size: 13px;
    color: var(--primary);
    font-weight: 600;
}
.ar-pn-title {
    font-size: 14px;
    color: var(--text);
    font-weight: 500;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.ar-prev:hover .ar-pn-title,
.ar-next:hover .ar-pn-title {
    color: var(--primary);
}

/* 相关推荐 */
.ar-related {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    padding: 30px 40px;
}
.ar-related-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.ar-related-title i {
    color: var(--primary);
}
.ar-related-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}
.ar-related-card {
    display: flex;
    gap: 14px;
    padding: 14px;
    border-radius: var(--radius);
    background: var(--bg-light);
    transition: var(--transition);
    text-decoration: none;
    border: 1px solid transparent;
}
.ar-related-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
}
.ar-related-img {
    width: 120px;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: var(--bg);
}
.ar-related-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.ar-related-card:hover .ar-related-img img {
    transform: scale(1.06);
}
.ar-related-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
}
.ar-related-info h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 6px;
    transition: var(--transition);
}
.ar-related-card:hover .ar-related-info h4 {
    color: var(--primary);
}
.ar-related-date {
    font-size: 12px;
    color: var(--text-muted);
}
.ar-related-date i {
    margin-right: 3px;
    font-size: 11px;
}

/* ========== 响应式 - 文章详情页 ========== */
@media (max-width: 1024px) {
    .ar-header h1 {
        font-size: 24px;
    }
    .ar-body {
        font-size: 15px;
    }
    .ar-body h2 {
        font-size: 20px;
    }
    .ar-related-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .ar-article {
        padding: 24px 20px;
    }
    .ar-header h1 {
        font-size: 22px;
    }
    .ar-meta {
        gap: 12px;
    }
    .ar-body {
        font-size: 15px;
        line-height: 1.85;
    }
    .ar-body h2 {
        font-size: 18px;
        margin: 28px 0 12px;
    }
    .ar-body p {
        text-indent: 1.5em;
    }
    .ar-prevnext {
        grid-template-columns: 1fr;
    }
    .ar-related {
        padding: 20px 18px;
    }
    .ar-related-card {
        flex-direction: column;
    }
    .ar-related-img {
        width: 100%;
        aspect-ratio: 16 / 9;
    }
}

@media (max-width: 480px) {
    .ar-article {
        padding: 18px 14px;
    }
    .ar-header h1 {
        font-size: 20px;
    }
    .ar-body {
        font-size: 14px;
    }
    .ar-body h2 {
        font-size: 17px;
    }
    .ar-tags a {
        font-size: 12px;
        padding: 4px 10px;
    }
}

/* ============================================================
   荣誉资质 & 设备展示页 (honor.html)
   ============================================================ */

/* 资质证书网格 */
.honor-cert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 30px;
}
.honor-cert-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: var(--transition);
}
.honor-cert-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}
.honor-cert-img-wrap {
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--bg-light);
}
.honor-cert-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.5s ease;
}
.honor-cert-card:hover .honor-cert-img-wrap img {
    transform: scale(1.05);
}
.honor-cert-info {
    padding: 18px 20px;
}
.honor-cert-info h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}
.honor-cert-info p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
}

.equip-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.equip-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: var(--transition);
}
.equip-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}
.equip-card-img {
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--bg-light);
}
.equip-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.equip-card:hover .equip-card-img img {
    transform: scale(1.05);
}
.equip-card-body {
    padding: 16px 18px;
}
.equip-card-body h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 4px;
}
.equip-card-body p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.5;
}

/* 资质 & 设备 区块间距 */
.honor-section {
    padding: 60px 0 40px;
}
.honor-equip-section {
    padding: 40px 0 60px;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .honor-cert-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .equip-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .honor-cert-grid {
        grid-template-columns: 1fr;
    }
    .equip-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   验证码气泡提示（类似浏览器原生验证）
   ============================================================ */
.captcha-bubble {
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    background: #fff;
    color: #333;
    padding: 8px 14px;
    border-radius: 4px;
    font-size: 13px;
    white-space: nowrap;
    box-shadow: 0 2px 12px rgba(0,0,0,0.15);
    border: 1px solid #ddd;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}
.captcha-bubble.show {
    opacity: 1;
}
.captcha-bubble::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: #fff;
}
.captcha-bubble::before {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 7px solid transparent;
    border-top-color: #ddd;
    margin-top: 1px;
}
/* ============================================================
   自定义 Toast 提示
   ============================================================ */
.toast-container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 99999;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    pointer-events: none;
}
.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    color: #fff;
    box-shadow: 0 8px 32px rgba(0,0,0,0.18);
    pointer-events: auto;
    animation: toastIn 0.35s ease, toastOut 0.3s ease 2.5s forwards;
    max-width: 480px;
    line-height: 1.4;
}
.toast i {
    font-size: 18px;
    flex-shrink: 0;
}
.toast-error {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
}
.toast-success {
    background: linear-gradient(135deg, #27ae60, #1e8449);
}
.toast-warning {
    background: linear-gradient(135deg, #f39c12, #d68910);
    color: #333;
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}
@keyframes toastOut {
    from {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    to {
        opacity: 0;
        transform: translateY(-20px) scale(0.9);
    }
}

@media (max-width: 768px) {
    .toast {
        max-width: 90vw;
        padding: 12px 18px;
        font-size: 14px;
    }
}