/* ================= 全局变量 ================= */
:root {
    --primary-green: #4CAF50;
    --light-green: #E8F5E9;
    --dark-green: #388E3C;
    --accent-green: #66BB6A;
    --text-dark: #2C3E50;
    --text-gray: #666666;
    --text-light: #999999;
    --bg-white: #FFFFFF;
    --bg-gray: #F8F9FA;
    --shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 10px 30px rgba(76, 175, 80, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ================= 基础重置 ================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Helvetica Neue", "Microsoft YaHei", Arial, sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-gray);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

/* ================= 通用组件 ================= */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.page-section {
    margin: 180px auto;
    width: 1200px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 36px;
    background: linear-gradient(135deg, var(--primary-green), var(--dark-green));
    color: var(--bg-white);
    border-radius: 30px;
    font-weight: 600;
    font-size: 15px;
    letter-spacing: 1px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
    text-transform: uppercase;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    background: linear-gradient(135deg, var(--dark-green), var(--primary-green));
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-green);
    color: var(--primary-green);
    box-shadow: none;
}

.btn-outline:hover {
    background: var(--primary-green);
    color: var(--bg-white);
}

.section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.section-title h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(to right, var(--primary-green), var(--accent-green));
    border-radius: 3px;
}

.section-title p {
    color: var(--text-gray);
    font-size: 16px;
    max-width: 600px;
    margin: 20px auto 0;
}

/* 图片预览弹窗（通用） */
.preview-trigger {
    cursor: zoom-in;
}

.img-preview-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: 0.3s ease;
}

.img-preview-modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-mask {
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.85);
}

.modal-box {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 90%;
    max-height: 90vh;
}

.close-btn {
    position: absolute;
    top: -40px;
    right: 0;
    color: #fff;
    font-size: 26px;
    cursor: pointer;
}

.preview-img {
    max-width: 100%;
    max-height: 85vh;
    border: 2px solid #fff;
    border-radius: 8px;
}

/* ================= Header 头部导航 ================= */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--bg-white);
    transition: var(--transition);
}

/* 未滚动：顶部全屏头部 上下双层布局 */
header.top-state {
    height: 168px;
    box-shadow: none;
}

header.top-state .header-inner {
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
}

header.top-state .logo {
    margin-bottom: 15px;
}

header.top-state nav ul {
    display: flex;
}

header.top-state .mobile-menu-toggle {
    display: none;
}

/* 滚动后：单行左右布局 Logo左 导航右 */
header.scrolled {
    height: 100px;
    box-shadow: var(--shadow);
}

header.scrolled .header-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

header.scrolled .logo {
    margin-bottom: 0;
}

header.scrolled nav ul {
    display: flex;
}

header.scrolled .mobile-menu-toggle {
    display: none;
}

.header-inner {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    transition: var(--transition);
}

/* Logo通用 */
.logo img {
    width: 120px;
    height: 90px;
    margin: 0 auto;
    transition: var(--transition);
}

header.scrolled .logo img {
    width: 95px;
    height: 70px;
}

/* PC导航菜单 */
nav ul {
    gap: 40px;
    align-items: center;
}

nav ul li a {
    font-size: 16px;
    font-weight: 500;
    padding: 8px 0;
    position: relative;
    color: var(--text-dark);
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-green);
    transition: var(--transition);
}

nav ul li a:hover,
nav ul li a.active {
    color: var(--primary-green);
}

nav ul li a:hover::after,
nav ul li a.active::after {
    width: 100%;
}

/* 导航绿色购买按钮 */
.nav-buy-btn {
    background: var(--primary-green);
    color: #fff !important;
    padding: 10px 24px !important;
    border-radius: 30px;
    transition: var(--transition);
    box-shadow: 0 3px 10px rgba(76, 175, 80, 0.25);
}

.nav-buy-btn::after {
    display: none !important;
}

.nav-buy-btn:hover {
    background: var(--dark-green);
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(76, 175, 80, 0.35);
    color: #fff !important;
}

.nav-buy-btn.active {
    background: var(--dark-green);
}

/* 移动端汉堡按钮 */
.mobile-menu-toggle {
    font-size: 26px;
    color: var(--primary-green);
    cursor: pointer;
}

/* ================= Hero Banner ================= */
.hero-banner {
    height: 100vh;
    min-height: 700px;
    background: url(https://www.luyanggw.com/static/images/bg_banner.jpg) left bottom no-repeat;
    background-size: cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
    padding-top: 140px;
}
header.scrolled ~ main .hero-banner {
    padding-top: 100px;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-content h2 {
    font-size: 56px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 25px;
    line-height: 1.2;
}

.hero-content h2 span {
    color: var(--primary-green);
    display: block;
}

.hero-content p {
    font-size: 18px;
    color: var(--text-gray);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.floating-product {
    position: absolute;
    width: 200px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
}

.floating-product img {
	width:100%;
	height:auto;
}

.floating-product:nth-child(1) {
    top: 45%;
    left: 80%;
    animation: float 6s ease-in-out infinite;
}

.floating-product:nth-child(2) {
    top: 45%;
    right: 5%;
    animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* ================= 新品推荐 ================= */
.new-products {
    background: var(--bg-white);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    background: var(--bg-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    position: relative;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.product-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--primary-green);
    color: var(--bg-white);
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    z-index: 2;
}

.product-img {
    height: 280px;
    background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
    background-size: 100% 100%;
    background-position: center center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;

}

.product-info {
    padding: 25px;
}

.product-info h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.product-info p {
    color: var(--text-gray);
    font-size: 14px;
    margin-bottom: 20px;
    line-height: 1.6;
}

.product-price {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.price {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-green);
}

.price-capacity {
    font-size: 16px;
    color: var(--text-light);
    margin-left: 10px;
}

/* ================= 首页口碑评价 ================= */
.home-comment-section {
    background: var(--bg-white);
}

.home-comment-wrap {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.home-comment-card {
    border: 1px solid #eee;
    border-radius: 14px;
    padding: 22px;
    transition: var(--transition);
}

.home-comment-card:hover {
    box-shadow: 0 6px 22px rgba(76, 175, 80, 0.08);
    transform: translateY(-4px);
}

.home-comment-head {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 12px;
}

.home-comment-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--light-green);
    color: var(--primary-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 16px;
    flex-shrink: 0;
}

.home-comment-info {
    flex: 1;
}

.home-comment-name {
    display: block;
    font-weight: 500;
    color: var(--text-dark);
    font-size: 15px;
}

.home-comment-time {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 3px;
}

.home-comment-star {
    color: #FFB800;
    font-size: 14px;
    margin-bottom: 12px;
}

.home-comment-tag-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.home-comment-tag {
    padding: 4px 10px;
    background: var(--light-green);
    color: var(--primary-green);
    font-size: 12px;
    border-radius: 20px;
}

.home-comment-text {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 14px;
}

.home-comment-img-group {
    display: flex;
    gap: 9px;
}

.home-comment-img {
    width: 72px;
    height: 72px;
    background: #eee;
    border-radius: 6px;
    overflow: hidden;
}

/* 评论卡片 - 产品跳转链接 */
.comment-product-link {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px dashed #f0f0f0;
    text-align: right;
}

.comment-product-link a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--primary-green);
    transition: var(--transition);
}

.comment-product-link a:hover {
    color: var(--dark-green);
    gap: 10px;
}

.comment-product-link a i {
    font-size: 12px;
    transition: var(--transition);
}

/* ================= 御养新知 ================= */
.knowledge-section {
    background: var(--bg-gray);
}

.knowledge-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.knowledge-card {
    background: var(--bg-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    cursor: pointer;
}

.knowledge-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.knowledge-img {
    height: 220px;
    background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
    background-size: 100% 100%;
    background-position: center center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.knowledge-tag {
    position: absolute;
    bottom: 15px;
    left: 15px;
    background: rgba(76, 175, 80, 0.9);
    color: var(--bg-white);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 12px;
}

.knowledge-info {
    padding: 25px;
}

.knowledge-meta {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 15px;
}

.knowledge-info h3 {
    font-size: 18px;
    margin-bottom: 12px;
    line-height: 1.5;
    color: var(--text-dark);
}

.knowledge-info p {
    color: var(--text-gray);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
}

.read-more {
    color: var(--primary-green);
    font-weight: 600;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.read-more i {
    transition: var(--transition);
}

.read-more:hover i {
    transform: translateX(5px);
}

/* ================= 关于芦氧 ================= */
.about-section {
    background: var(--bg-gray);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-img {
    height: 500px;
    background: linear-gradient(135deg, var(--light-green) 0%, #C8E6C9 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.about-img::before {
    content: '';
    color: var(--primary-green);
    font-size: 18px;
}

.about-text {
    padding-bottom: 50px;
}

.about-text h3 {
    font-size: 32px;
    margin-bottom: 25px;
    color: var(--text-dark);
}

.about-text h3 span {
    color: var(--primary-green);
}

.about-text p {
    color: var(--text-gray);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 30px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: var(--light-green);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-green);
    font-size: 22px;
    flex-shrink: 0;
}

.feature-text h4 {
    font-size: 16px;
    margin-bottom: 5px;
    color: var(--text-dark);
}

.feature-text p {
    font-size: 14px;
    margin: 0;
}

/* ================= 品牌介绍页 ================= */
.brand-detail-wrap {
    background: var(--bg-white);
    border-radius: 20px;
    padding: 70px 80px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.brand-detail-wrap::after {
    content: "";
    position: absolute;
    top: -100px;
    right: -100px;
    width: 360px;
    height: 360px;
    background: radial-gradient(circle, rgba(76,175,80,0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.brand-text {
    position: relative;
    z-index: 1;
}

/* 开篇英雄区 左图右文 */
.brand-hero {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 50px;
    align-items: center;
    margin-bottom: 70px;
    padding-bottom: 60px;
    border-bottom: 1px solid #f0f0f0;
}

.hero-img {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.hero-img:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 44px rgba(76, 175, 80, 0.18);
}

.hero-img img {
    width: 100%;
    height: 360px;
    object-fit: cover;
    display: block;
}

.hero-img-tag {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(8px);
    padding: 8px 18px;
    border-radius: 30px;
    font-size: 13px;
    color: var(--dark-green);
    font-weight: 500;
    letter-spacing: 0.5px;
}

.hero-content .brand-label {
    display: inline-block;
    padding: 6px 16px;
    background: var(--light-green);
    color: var(--primary-green);
    border-radius: 30px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 18px;
}

.hero-content h3 {
    font-size: 26px;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.4;
    margin-bottom: 20px;
}

.hero-content p {
    color: var(--text-gray);
    line-height: 1.9;
    margin-bottom: 14px;
    font-size: 15px;
}

.hero-data {
    display: flex;
    gap: 30px;
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px dashed #e8f5e9;
}

.hero-data .data-item {
    text-align: center;
    flex: 1;
}

.hero-data .data-item strong {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-green);
    margin-bottom: 4px;
}

.hero-data .data-item span {
    font-size: 12px;
    color: var(--text-light);
}

/* 通用区块标题 */
.brand-section {
    margin-bottom: 60px;
}

.section-heading {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 32px;
}

.section-num {
    font-size: 42px;
    font-weight: 800;
    color: var(--light-green);
    font-family: Arial, sans-serif;
    line-height: 1;
    user-select: none;
    min-width: 56px;
}

.section-title-inner h4 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 6px 0;
    position: relative;
    padding-bottom: 8px;
}

.section-title-inner h4::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 36px;
    height: 3px;
    background: linear-gradient(to right, var(--primary-green), var(--accent-green));
    border-radius: 2px;
}

.section-title-inner p {
    font-size: 13px;
    color: var(--text-light);
    margin: 0;
}

/* 核心理念卡片 */
.principle-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.principle-card {
    padding: 28px;
    border-radius: 16px;
    background: linear-gradient(135deg, #fafdfb 0%, #ffffff 100%);
    border: 1px solid #edf7f0;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.principle-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(to right, var(--primary-green), var(--accent-green));
    transition: var(--transition);
}

.principle-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-green);
    box-shadow: 0 12px 30px rgba(76, 175, 80, 0.12);
}

.principle-card:hover::before {
    width: 100%;
}

.principle-icon-wrap {
    width: 54px;
    height: 54px;
    border-radius: 14px;
    background: var(--light-green);
    color: var(--primary-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 18px;
    transition: var(--transition);
}

.principle-card:hover .principle-icon-wrap {
    background: var(--primary-green);
    color: #fff;
    transform: scale(1.05);
}

.principle-card h5 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.principle-card p {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-gray);
    margin: 0;
}

/* 核心优势 横向卡片 */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.advantage-card {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 24px;
    border-radius: 14px;
    background: var(--bg-gray);
    transition: var(--transition);
    border: 1px solid transparent;
}

.advantage-card:hover {
    background: #fff;
    border-color: #e8f5e9;
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.06);
    transform: translateX(4px);
}

.adv-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--light-green);
    color: var(--primary-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
    transition: var(--transition);
}

.advantage-card:hover .adv-icon {
    background: var(--primary-green);
    color: #fff;
}

.adv-content h5 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.adv-content p {
    font-size: 13px;
    color: var(--text-gray);
    line-height: 1.6;
    margin: 0;
}

/* 产品矩阵卡片 */
.product-grid-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.product-grid-list .product-card {
    padding: 26px;
    border: 1px solid #eee;
}

.product-grid-list .product-card:hover {
    border-color: var(--primary-green);
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(76, 175, 80, 0.1);
}

.product-card-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.product-cate {
    padding: 5px 14px;
    background: var(--primary-green);
    color: #fff;
    font-size: 12px;
    border-radius: 20px;
    font-weight: 500;
}

.product-card-head i {
    font-size: 22px;
    color: var(--light-green);
    transition: var(--transition);
}

.product-card:hover .product-card-head i {
    color: var(--primary-green);
}

.product-grid-list .product-card h5 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.product-grid-list .product-card p {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-gray);
    margin: 0;
}

/* 研发与品控 */
.rd-quality-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.rd-module {
    padding: 30px;
    border-radius: 16px;
    background: linear-gradient(180deg, #fafdfb 0%, #fff 100%);
    border: 1px solid #e8f5e9;
    transition: var(--transition);
}

.rd-module:hover {
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.06);
    transform: translateY(-3px);
}

.rd-module-head {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px dashed #e8f5e9;
}

.rd-module-head i {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: var(--light-green);
    color: var(--primary-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.rd-module-head h5 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0;
}

.rd-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.rd-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 14px;
    color: var(--text-gray);
}

.rd-list li i {
    color: var(--primary-green);
    font-size: 14px;
    flex-shrink: 0;
}

/* 品牌愿景 氛围感区块 */
.brand-vision-block {
    margin: 60px 0;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--light-green) 0%, #e6f7ed 100%);
    padding: 50px 60px;
    position: relative;
    overflow: hidden;
}

.brand-vision-block::before {
    content: "";
    position: absolute;
    bottom: -60px;
    right: -60px;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
}

.vision-content {
    position: relative;
    z-index: 1;
}

.vision-label {
    display: inline-block;
    padding: 6px 16px;
    background: #fff;
    color: var(--primary-green);
    border-radius: 30px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 16px;
}

.vision-content h4 {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark-green);
    margin-bottom: 16px;
}

.vision-content p {
    color: var(--text-dark);
    line-height: 2;
    margin: 0;
    font-size: 15px;
}

/* 底部品牌价值条 */
.brand-value-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    padding: 36px 0 10px;
    border-top: 1px solid #eee;
}

.value-item {
    display: flex;
    align-items: center;
    gap: 14px;
}

.value-item i {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--light-green);
    color: var(--primary-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
    transition: var(--transition);
}

.value-item:hover i {
    background: var(--primary-green);
    color: #fff;
    transform: scale(1.05);
}

.value-item h5 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0 0 4px 0;
}

.value-item p {
    font-size: 12px;
    color: var(--text-light);
    margin: 0;
    line-height: 1.4;
}

/* ================= 产品系列页 ================= */
.products-page {
    background: var(--bg-gray);
    min-height: 100vh;
}

header.scrolled ~ main .products-page {
    padding-top: 100px;
}

.products-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 25px;
    border: 2px solid #E0E0E0;
    background: transparent;
    border-radius: 25px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-gray);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-green);
    border-color: var(--primary-green);
    color: var(--bg-white);
}

/* 分页组件 */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 40px;
}

.pagination a,
.pagination span.current {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    font-size: 15px;
    color: var(--text-dark);
    background-image: url(https://www.luyanggw.com/static/images/bg_page.png);
    background-size: 100% 100%;
    background-repeat: no-repeat;
    background-position: center;
    transition: var(--transition);
}

.pagination span.current {
    background-image: url(https://www.luyanggw.com/static/images/bg_page_active.png);
    color: #fff;
    font-weight: 600;
}

.pagination a:hover {
    opacity: 0.85;
    transform: translateY(-2px);
}

.pagination a.disabled {
    opacity: 0.4;
    pointer-events: none;
    cursor: not-allowed;
}

/* ================= 文章详情页 ================= */
.article-page {
    background: var(--bg-gray);
    min-height: 100vh;
}

header.scrolled ~ main .article-page {
    padding-top: 100px;
}

.article-container {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 40px;
}

.article-main {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 50px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.article-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid #EEE;
}

.article-title {
    font-size: 32px;
    line-height: 1.4;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 30px;
    color: var(--text-light);
    font-size: 14px;
    flex-wrap: wrap;
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 8px;
}

.article-meta .read-time {
    color: var(--primary-green);
    font-weight: 600;
}

.article-summary {
    background: var(--light-green);
    padding: 25px;
    border-radius: 12px;
    margin-bottom: 40px;
    border-left: 4px solid var(--primary-green);
}

.article-summary h4 {
    color: var(--primary-green);
    margin-bottom: 10px;
    font-size: 16px;
}

.article-body {
    line-height: 1.9;
    color: #444;
}

.article-body p {
    margin-bottom: 20px;
}

.article-body h3 {
    font-size: 22px;
    color: var(--text-dark);
    margin: 35px 0 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--light-green);
}

.article-body blockquote {
    background: #F8F9FA;
    border-left: 4px solid var(--primary-green);
    padding: 20px 25px;
    margin: 30px 0;
    font-style: italic;
    color: var(--text-gray);
}

/* 文章正文 表格样式 */
.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    border-radius: 8px;
    overflow: hidden;
    background: var(--bg-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    font-size: 14px;
}

.article-body th {
    background: var(--light-green);
    color: var(--dark-green);
    font-weight: 600;
    padding: 14px 18px;
    text-align: left;
    border-bottom: 2px solid var(--primary-green);
    line-height: 1.5;
}

.article-body td {
    padding: 12px 18px;
    color: var(--text-gray);
    line-height: 1.7;
    border-bottom: 1px solid #f0f0f0;
    overflow-wrap: break-word;
    word-break: break-word;
    vertical-align: top;
}

.article-body tr:nth-child(even) td {
    background: #fafdfb;
}

.article-body tr:hover td {
    background: var(--light-green);
    transition: var(--transition);
}

.article-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid #EEE;
}

.article-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-gray);
    font-size: 14px;
    max-width: 45%;
}

.article-nav a:hover {
    color: var(--primary-green);
}

.article-nav .next {
    text-align: right;
    margin-left: auto;
}

.related-articles {
    margin-top: 50px;
}

.related-articles h3 {
    font-size: 20px;
    margin-bottom: 25px;
    color: var(--text-dark);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.related-item {
    display: flex;
    gap: 15px;
    padding: 15px;
    background: #F8F9FA;
    border-radius: 10px;
    transition: var(--transition);
}

.related-item:hover {
    background: var(--light-green);
}

.related-img {
    width: 80px;
    height: 80px;
    background: #E0E0E0;
    border-radius: 8px;
    flex-shrink: 0;
    overflow: hidden;
}

.related-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.related-text h4 {
    font-size: 14px;
    line-height: 1.4;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.related-text span {
    font-size: 12px;
    color: var(--text-light);
}

/* 侧边栏 */
.article-sidebar {
    position: sticky;
    top: 100px;
}

.sidebar-widget {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.sidebar-widget h3 {
    font-size: 18px;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--light-green);
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-widget h3 i {
    color: var(--primary-green);
}

.rank-list li {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 15px 0;
    border-bottom: 1px dashed #EEE;
}

.rank-list li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.rank-num {
    width: 26px;
    height: 26px;
    background: #F0F0F0;
    color: var(--text-gray);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    flex-shrink: 0;
}

.rank-num.top {
    background: var(--primary-green);
    color: var(--bg-white);
}

.rank-text h4 {
    font-size: 14px;
    line-height: 1.4;
    margin-bottom: 5px;
    color: var(--text-dark);
}

.rank-text span {
    font-size: 12px;
    color: var(--text-light);
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-cloud a {
    padding: 8px 16px;
    background: #F8F9FA;
    border-radius: 20px;
    font-size: 13px;
    color: var(--text-gray);
    transition: var(--transition);
}

.tag-cloud a:hover {
    background: var(--primary-green);
    color: var(--bg-white);
}

/* ================= 产品详情页 ================= */
.product-detail-page {
    min-height: 100vh;
    background: var(--bg-gray);
}

header.scrolled ~ main .product-detail-page {
    padding-top: 100px;
}

/* 面包屑导航 */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 0;
    font-size: 14px;
    color: var(--text-gray);
}

.breadcrumb a {
    color: var(--text-gray);
}

.breadcrumb a:hover {
    color: var(--primary-green);
}

.breadcrumb .current {
    color: var(--primary-green);
}

/* 产品主体布局 */
.product-detail-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    background: var(--bg-white);
    padding: 30px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    margin-bottom: 40px;
}

/* 产品主图多图切换 */
.detail-img-box {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.detail-main-img {
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 12px;
    overflow: hidden;
    background: linear-gradient(135deg, #F5F7FA 0%, #E4E8EB 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.detail-main-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.detail-thumb-list {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding-bottom: 4px;
}

.detail-thumb-list::-webkit-scrollbar {
    height: 4px;
}

.detail-thumb-list::-webkit-scrollbar-thumb {
    background: var(--light-green);
    border-radius: 2px;
}

.thumb-item {
    width: 78px;
    height: 78px;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    flex-shrink: 0;
    transition: var(--transition);
    opacity: 0.7;
}

.thumb-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.thumb-item:hover {
    opacity: 1;
    transform: translateY(-2px);
}

.thumb-item.active {
    border-color: var(--primary-green);
    opacity: 1;
    box-shadow: 0 2px 8px rgba(76, 175, 80, 0.2);
}

/* 人气标签 */
.product-hot {
    display: inline-block;
    padding: 6px 12px;
    background: var(--light-green);
    color: var(--primary-green);
    font-size: 13px;
    border-radius: 20px;
    margin-bottom: 15px;
}

/* 产品标题 */
.detail-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.detail-subtitle {
    font-size: 16px;
    color: var(--text-gray);
    margin-bottom: 20px;
}

/* 价格区域 */
.detail-price {
    display: flex;
    align-items: baseline;
    gap: 15px;
    margin-bottom: 30px;
}

.now-price {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-green);
}

.old-price {
    font-size: 16px;
    color: var(--text-light);
    text-decoration: line-through;
}

/* 通用模块标题 */
.block-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    padding-bottom: 10px;
    border-bottom: 2px solid var(--light-green);
    margin-bottom: 20px;
}

/* 功效列表 */
.detail-block {
    margin-bottom: 30px;
}

.effect-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.effect-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    color: var(--text-gray);
}

.effect-list li i {
    color: var(--primary-green);
}

/* 规格列表 */
.spec-list .spec-item {
    display: flex;
    padding: 10px 0;
    border-bottom: 1px dashed #eee;
    font-size: 15px;
    color: var(--text-gray);
}

.spec-list .spec-item span {
    color: var(--text-dark);
    font-weight: 500;
    width: 120px;
}

/* 购买按钮 */
.detail-btn-group {
    margin-top: 20px;
}

/* 产品介绍 & 用户评价 通用容器 */
.detail-desc-block,
.detail-comment-block {
    background: var(--bg-white);
    padding: 30px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    margin-bottom: 40px;
}

.desc-content h4 {
    font-size: 18px;
    color: var(--dark-green);
    line-height: 2.5;
    margin-bottom: 15px;
}

.desc-content ul,.desc-content ol {
    margin-bottom: 25px;
}

.desc-content p,.desc-content ul li,.desc-content ol li {
    line-height: 1.8;
    color: var(--text-gray);
    margin-bottom: 15px;
    font-size: 15px;
}

.desc-content a {
    color: var(--dark-green);
    text-decoration: none;
    border-bottom:1px solid var(--dark-green);
}

/* 用户评价模块 */
.comment-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 26px;
    margin-top: 24px;
}

.comment-item {
    border: 1px solid #eee;
    border-radius: 14px;
    padding: 24px;
    transition: var(--transition);
    height: 100%;
}

.comment-item:hover {
    box-shadow: 0 6px 22px rgba(76, 175, 80, 0.08);
    transform: translateY(-3px);
}

.comment-user {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 12px;
}

.user-avatar {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--light-green);
    color: var(--primary-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 17px;
    flex-shrink: 0;
}

.user-name {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-dark);
}

.comment-star {
    color: #FFB800;
    font-size: 15px;
    letter-spacing: 2px;
    margin-bottom: 10px;
}

.comment-tag {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 14px;
}

.comment-tag span {
    padding: 4px 11px;
    background: var(--light-green);
    color: var(--primary-green);
    font-size: 12px;
    border-radius: 20px;
}

.comment-text {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 16px;
}

.comment-img-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.comment-img-group .preview-trigger {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    overflow: hidden;
    background: #eee;
    transition: var(--transition);
}

.comment-img-group .preview-trigger:hover {
    transform: scale(1.05);
}

.comment-img-group img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.comment-date {
    font-size: 12px;
    color: var(--text-light);
    text-align: right;
}

/* ================= 联系我们 ================= */
.contact-section {
    background: var(--bg-gray);
    min-height: 100vh;
}

header.scrolled ~ main .contact-section {
    padding-top: 100px;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h3 {
    font-size: 28px;
    margin-bottom: 25px;
    color: var(--text-dark);
}

.contact-info > p {
    color: var(--text-gray);
    margin-bottom: 40px;
    line-height: 1.8;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--light-green);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-green);
    font-size: 24px;
    flex-shrink: 0;
}

.contact-text h4 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.contact-text p {
    color: var(--text-gray);
    line-height: 1.6;
}

.contact-form {
    background: var(--bg-gray);
    padding: 40px;
    border-radius: 20px;
}

.contact-form h3 {
    font-size: 24px;
    margin-bottom: 30px;
    color: var(--text-dark);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-dark);
}

.form-control {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #E0E0E0;
    border-radius: 10px;
    font-size: 15px;
    transition: var(--transition);
    background: var(--bg-white);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-green);
}

.form-control::placeholder {
    color: #AAA;
}

textarea.form-control {
    resize: vertical;
    min-height: 150px;
}

/* ================= 网站地图 ================= */
/* 站点地图页面容器 */
.sitemap-page {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--light-green) 0%, #f0f9f0 100%);
    padding-top: 180px;
    padding-bottom: 100px;
}
header.scrolled ~ main .sitemap-page {
    padding-top: 120px;
}

/* 页面头部标题区域 */
.sitemap-header {
    text-align: center;
    margin-bottom: 60px;
}
.sitemap-header h1 {
    font-size: 42px;
    color: var(--text-dark);
    margin-bottom: 15px;
    font-weight: 800;
}
.sitemap-header h1 span {
    color: var(--primary-green);
}
.sitemap-header p {
    color: var(--text-gray);
    font-size: 16px;
}

/* 分类网格布局 */
.sitemap-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

/* 单块站点地图卡片 */
.sitemap-block {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 35px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}
.sitemap-block:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}
.sitemap-block h3 {
    font-size: 20px;
    color: var(--text-dark);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--light-green);
    display: flex;
    align-items: center;
    gap: 10px;
}
.sitemap-block h3 i {
    color: var(--primary-green);
    font-size: 22px;
}

/* 一级链接列表 */
.sitemap-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    list-style: none;
}
.sitemap-list > li > a {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-gray);
    font-size: 15px;
    padding: 8px 0;
    border-bottom: 1px dashed #f0f0f0;
    transition: var(--transition);
    font-weight: 500;
}
.sitemap-list > li > a::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--light-green);
    transition: var(--transition);
    flex-shrink: 0;
}
.sitemap-list li a:hover {
    color: var(--primary-green);
    padding-left: 6px;
}
.sitemap-list li a:hover::before {
    background: var(--primary-green);
}

/* 二级子列表（原生定格展示，无隐藏样式） */
.sitemap-sublist {
    margin-left: 20px;
    margin-top: 8px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    list-style: none;
}
.sitemap-sublist li a {
    font-size: 14px;
    color: var(--text-gray);
    border-bottom: none;
    padding: 4px 0;
    transition: var(--transition);
}

/* ================= 404 页面 ================= */
.page-404 {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--light-green) 0%, #C8E6C9 100%);
    padding-top: 0;
}

.error-content {
    padding-top: 100px;
    text-align: center;
    max-width: 600px;
}

.error-code {
    font-size: 180px;
    font-weight: 800;
    color: var(--primary-green);
    line-height: 1;
    margin-bottom: 20px;
    text-shadow: 5px 5px 0 rgba(0, 0, 0, 0.1);
}

.error-content h2 {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.error-content p {
    color: var(--text-gray);
    margin-bottom: 40px;
    font-size: 18px;
}

/* ================= Footer 页脚 ================= */
footer {
    background: #2C3E50;
    color: #FFF;
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 200px;
    margin-bottom: 50px;
    align-items: flex-start;
}

.footer-brand h3 {
    font-size: 28px;
    color: var(--primary-green);
    margin-bottom: 15px;
    letter-spacing: 2px;
}

.footer-brand p {
    color: #B0BEC5;
    line-height: 1.8;
    margin-bottom: 25px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFF;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-green);
    transform: translateY(-3px);
}

.footer-contact {
    padding-top: 35px;
}

.footer-contact p {
    color: #B0BEC5;
    line-height: 2.2;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #90A4AE;
    font-size: 14px;
}

.copyright a {
    color: var(--primary-green);
}

/* ================= 回到顶部按钮 ================= */
.back-top {
    position: fixed;
    bottom: 40px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-green);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    cursor: pointer;
}

.back-top.show {
    opacity: 1;
    visibility: visible;
}

.back-top:hover {
    background: var(--dark-green);
    transform: translateY(-5px);
}

/* ================================================ */
/* ================= 响应式适配 统一存放 ================= */
/* ================================================ */

/* ========== 平板 769px ~ 992px ========== */
@media (min-width:769px) and (max-width: 992px) {
    /* 通用网格两列 */
    .product-grid,
    .knowledge-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 单列布局 */
    .about-content,
    .contact-content,
    .article-container {
        grid-template-columns: 1fr;
    }

    .article-sidebar {
        position: static;
    }

    .hero-content h2 {
        font-size: 42px;
    }

    /* 品牌介绍页 */
    .brand-detail-wrap {
        padding: 50px 40px;
    }

    .brand-hero {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .hero-img {
        order: -1;
    }

    .principle-grid,
    .product-grid-list,
    .advantage-grid,
    .rd-quality-wrap {
        grid-template-columns: 1fr;
    }

    .brand-value-bar {
        grid-template-columns: repeat(2, 1fr);
    }

    .brand-vision-block {
        padding: 40px;
    }

    /* 页脚两栏紧凑间距 */
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    /* 产品评价保持两列 */
    .detail-comment-block {
        padding: 24px;
    }

    .comment-item {
        padding: 20px;
    }

    .comment-img-group .preview-trigger {
        width: 72px;
        height: 72px;
    }
}

/* ========== 移动端 < 768px ========== */
@media (max-width: 768px) {
    /* Header 统一单行 */
    header.top-state,
    header.scrolled {
        height: 100px;
    }

    .header-inner {
        flex-direction: row !important;
        justify-content: space-between !important;
        align-items: center !important;
    }

    .logo {
        margin-bottom: 0 !important;
    }

    .logo img {
        width: 90px;
        height: 70px;
    }

    .mobile-menu-toggle {
        display: block !important;
    }

    /* 移动端下拉导航 */
    nav ul {
        display: none !important;
    }

    nav {
        position: fixed;
        top: 100px;
        left: 0;
        width: 100%;
        background: var(--bg-white);
        box-shadow: var(--shadow);
        padding: 20px;
        transform: translateY(-120%);
        transition: var(--transition);
        opacity: 0;
        z-index: 999;
    }

    header.scrolled nav {
        top: 95px;
    }

    nav.active {
        transform: translateY(0);
        opacity: 1;
    }

    nav ul {
        display: flex !important;
        flex-direction: column;
        gap: 15px;
    }

    nav ul li a {
        display: block;
        padding: 12px 0;
        border-bottom: 1px solid #EEE;
        font-size: 17px;
    }

    /* Hero Banner */
	.hero-banner {
        background: url(https://www.luyanggw.com/static/images/bg_banner_mobile.jpg) left bottom no-repeat;
		background-size: 100% auto;
    }

	.floating-product {
		width: 120px;
		height: 200px;
	}
	
	.floating-product:nth-child(1) {
		top: 35%;
		left: 75%;
	}

    .hero-content h2 {
        font-size: 32px;
    }

    .hero-btns {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }

    .hero-btns .btn {
        width: 70%;
        max-width: 260px;
    }

    /* 网格全部单列 */
    .product-grid,
    .knowledge-grid,
    .home-comment-wrap {
        grid-template-columns: 1fr;
    }

    .about-content,
    .contact-content,
    .article-container {
        grid-template-columns: 1fr;
    }

    .article-sidebar {
        position: static;
    }

    .article-main {
        padding: 30px 20px;
    }

    .article-title {
        font-size: 26px;
    }

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

    /* 文章表格移动端适配 */
    .article-body table {
        width: 98%;
        margin: 20px auto;
        table-layout: fixed;
        font-size: 13px;
    }

    .article-body th,
    .article-body td {
        padding: 10px 8px;
    }

    .advantage-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .adv-icon {
        width: 44px;
        height: 44px;
        font-size: 18px;
    }
	
    /* 网站地图 */
    .sitemap-page {
		padding-top: 130px;
    }
	
    .sitemap-header h1 {
		font-size: 32px;
    }
	
    .sitemap-grid {
		grid-template-columns: 1fr;
    }
	
    .sitemap-block {
		padding: 25px;
    }
			
    /* 404页面 */
    .error-code {
        font-size: 120px;
    }

    /* 页脚堆叠居中 */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .footer-brand,
    .footer-contact {
        text-align: center;
    }

    .footer-brand p {
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }

    .social-links {
        justify-content: center;
    }

    .footer-contact p {
        justify-content: center;
    }

    /* 通用页面宽度 */
    .page-section {
        margin: 100px 0;
        width: 98%;
    }

    /* 品牌介绍页 */
    .brand-detail-wrap {
        padding: 36px 24px;
        border-radius: 16px;
    }

    .section-num {
        font-size: 32px;
        min-width: 42px;
    }

    .section-title-inner h4 {
        font-size: 19px;
    }

    .hero-data {
        gap: 16px;
    }

    .brand-vision-block {
        padding: 32px 28px;
    }

    .vision-content h4 {
        font-size: 19px;
    }

    .brand-value-bar {
        grid-template-columns: 1fr 1fr;
        gap: 18px;
    }

    /* 分页组件 */
    .pagination {
        gap: 8px;
        margin-top: 30px;
    }

    .pagination a,
    .pagination span.current {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }

    /* 产品详情页 */
    .product-detail-wrap {
        grid-template-columns: 1fr;
        padding: 20px;
    }

    .thumb-item {
        width: 64px;
        height: 64px;
    }

    .detail-title {
        font-size: 24px;
    }

    .now-price {
        font-size: 28px;
    }

    .effect-list {
        grid-template-columns: 1fr;
    }

    .detail-desc-block,
    .detail-comment-block {
        padding: 20px;
    }

    /* 评价列表单列 */
    .comment-list {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .comment-item {
        padding: 18px 16px;
    }

    .user-avatar {
        width: 40px;
        height: 40px;
        font-size: 15px;
    }

    .user-name {
        font-size: 14px;
    }

    .comment-star {
        font-size: 14px;
    }

    .comment-text {
        font-size: 14px;
    }

    .comment-img-group {
        gap: 8px;
    }

    .comment-img-group .preview-trigger {
        width: 64px;
        height: 64px;
    }

    .comment-date {
        text-align: left;
        margin-top: 4px;
    }
}

/* ========== 小手机 < 576px ========== */
@media (max-width: 576px) {
    .detail-comment-block {
        padding: 16px 12px;
    }

    .comment-item {
        padding: 16px 12px;
    }

    .comment-img-group .preview-trigger {
        width: 56px;
        height: 56px;
    }

    .comment-user {
        gap: 10px;
    }
}

/* ========== 超小屏 < 480px ========== */
@media (max-width: 480px) {
    .brand-detail-wrap {
        padding: 28px 20px;
    }

    .hero-img img {
        height: 260px;
    }

    .hero-data {
        flex-wrap: wrap;
    }

    .hero-data .data-item {
        flex: 1 1 calc(50% - 8px);
    }

    .principle-card,
    .product-grid-list .product-card,
    .rd-module {
        padding: 22px;
    }

    .brand-value-bar {
        grid-template-columns: 1fr;
    }
	
    .sitemap-header h1 {
		font-size: 28px;
    }
			
    .sitemap-block {
		padding: 20px;
    }
}