/* 全局样式 */
:root {
    --primary-blue: #0a2463;
    --secondary-blue: #3e92cc;
    --accent-gold: #c5a572;
    --light-gold: #e8d5b5;
    --dark-bg: #0d1b2a;
    --text-dark: #1b263b;
    --text-light: #e0e1dd;
    --white: #ffffff;
    --light-bg: #f8f9fa;
    --font-sans: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans", "Noto Sans CJK SC", "Helvetica Neue", Arial, Helvetica, sans-serif;
    --font-serif: "Georgia", "Times New Roman", serif;
    --font-size-body: 17px;
    --line-height-body: 1.9;
    --measure: 72ch;
}

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

body {
    font-family: var(--font-sans);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--light-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 顶部导航栏 */
.header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    padding: 25px 0;
    color: var(--white);
    box-shadow: 0 4px 20px rgba(10, 36, 99, 0.3);
    position: relative;
}

.header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-gold) 0%, var(--light-gold) 50%, var(--accent-gold) 100%);
}

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

.logo h1 {
    font-size: 28px;
    font-weight: 700;
    margin: 0;
    color: var(--white);
    letter-spacing: 1px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

/* 全局标题优化 */
h1,
h2,
h3 {
    letter-spacing: 0.5px;
    -webkit-font-smoothing: antialiased;
}

.header-desc p {
    font-size: 13px;
    color: var(--light-gold);
    letter-spacing: 2px;
    margin-top: 5px;
    font-weight: 500;
}

.header-phone {
    text-align: right;
}

.header-phone span {
    display: block;
    font-size: 12px;
    color: var(--light-gold);
    letter-spacing: 1px;
}

.phone-number {
    font-size: 22px;
    font-weight: bold;
    margin-top: 5px;
    color: var(--accent-gold);
}

/* 主导航 */
.nav {
    background: var(--dark-bg);
    padding: 0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-menu {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 0;
}

.nav-menu li {
    position: relative;
}

.nav-menu li a {
    display: block;
    padding: 20px 40px;
    color: var(--text-light);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

/* 下拉菜单 */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(10, 36, 99, 0.9);
    backdrop-filter: blur(8px);
    min-width: 250px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    border-top: 3px solid var(--accent-gold);
    z-index: 1001;
}

.nav-menu li:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 15px 25px;
    color: var(--text-light);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    text-transform: none;
    letter-spacing: 1px;
    transition: background 0.3s ease, color 0.3s ease, padding-left 0.3s ease;
    border-bottom: 1px solid rgba(197, 165, 114, 0.2);
    white-space: nowrap;
}

.dropdown-menu a:last-child {
    border-bottom: none;
}

.dropdown-menu a:hover {
    background: var(--secondary-blue);
    color: var(--accent-gold);
    padding-left: 35px;
}

.dropdown-menu a::before {
    content: '→ ';
    display: inline-block;
    margin-right: 5px;
    opacity: 0;
    transform: translateX(-10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.dropdown-menu a:hover::before {
    opacity: 1;
    transform: translateX(0);
}

.nav-menu li a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
    transition: left 0.5s;
}

.nav-menu li a:hover::before {
    left: 100%;
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-gold), var(--light-gold));
    transform: translateX(-50%);
    transition: width 0.4s ease;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    color: var(--accent-gold);
    background-color: rgba(197, 165, 114, 0.1);
}

.nav-menu li a:hover::after,
.nav-menu li a.active::after {
    width: 85%;
}

/* 轮播横幅 */
.banner {
    position: relative;
    height: 650px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--primary-blue) 50%, var(--secondary-blue) 100%);
}

.banner-slider {
    height: 100%;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.banner-slide.active {
    opacity: 1;
    position: relative;
}

.banner-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.5;
    filter: brightness(0.8);
}

.banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
    z-index: 10;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translate(-50%, -40%);
    }

    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

.banner-subtitle {
    font-size: 16px;
    font-weight: 400;
    letter-spacing: 6px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8);
    color: var(--light-gold);
    text-transform: uppercase;
}

.banner-content h2 {
    font-size: 58px;
    font-weight: 700;
    margin-bottom: 25px;
    letter-spacing: 3px;
    line-height: 1.2;
    background: linear-gradient(90deg, #ffffff 0%, var(--light-gold) 50%, var(--accent-gold) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    filter: drop-shadow(0 8px 25px rgba(10, 36, 99, 0.35));
}

.banner-content p {
    font-size: 22px;
    margin-bottom: 40px;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.8);
    font-weight: 400;
    color: var(--text-light);
    letter-spacing: 1px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-gold) 0%, var(--light-gold) 100%);
    color: var(--primary-blue);
    border: 2px solid var(--accent-gold);
    padding: 16px 45px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    border-radius: 50px;
    transition: all 0.4s ease;
    text-transform: uppercase;
    letter-spacing: 2px;
    box-shadow: 0 6px 25px rgba(197, 165, 114, 0.5);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: var(--white);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary:hover {
    color: var(--primary-blue);
    border-color: var(--white);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 35px rgba(197, 165, 114, 0.6);
}

.btn-primary span {
    position: relative;
    z-index: 1;
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: -20%;
    width: 20%;
    height: 100%;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0));
    transform: skewX(-20deg);
    transition: left 0.6s ease;
}

.btn-primary:hover::after {
    left: 120%;
}

.banner-controls {
    position: absolute;
    top: 50%;
    width: 100%;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 30px;
    z-index: 10;
    pointer-events: none;
}

.banner-prev,
.banner-next {
    background: rgba(13, 27, 42, 0.8);
    border: 2px solid var(--accent-gold);
    color: var(--accent-gold);
    font-size: 22px;
    width: 60px;
    height: 60px;
    cursor: pointer;
    transition: all 0.4s ease;
    border-radius: 50%;
    pointer-events: auto;
    backdrop-filter: blur(10px);
}

.banner-prev:hover,
.banner-next:hover {
    background: linear-gradient(135deg, var(--accent-gold), var(--light-gold));
    color: var(--primary-blue);
    transform: scale(1.15);
    border-color: var(--light-gold);
    box-shadow: 0 0 25px rgba(197, 165, 114, 0.8);
}

/* 产品导航走马灯 */
.product-nav {
    background: linear-gradient(to bottom, var(--white) 0%, var(--light-bg) 100%);
    padding: 60px 0;
    border-bottom: 3px solid var(--accent-gold);
    position: relative;
    overflow: hidden;
}

.product-nav::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
}

.product-nav-items {
    overflow: hidden;
    position: relative;
    width: 100%;
}

.product-nav-carousel {
    display: flex;
    transition: transform 0.8s ease-in-out;
    will-change: transform;
}

.product-nav-item {
    flex: 0 0 20%;
    text-align: center;
    cursor: pointer;
    transition: transform 0.3s, opacity 0.3s;
    padding: 15px;
    opacity: 0.9;
}

.product-nav-item:hover {
    transform: scale(1.08);
    opacity: 1;
}

.product-nav-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border: 2px solid var(--secondary-blue);
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(10, 36, 99, 0.15);
    transition: all 0.4s ease;
}

.product-nav-item:hover img {
    box-shadow: 0 12px 35px rgba(197, 165, 114, 0.5);
    border-color: var(--accent-gold);
    transform: translateY(-5px);
}

.product-nav-item p {
    color: var(--primary-blue);
    margin-top: 15px;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 关于我们 */
.about-section {
    background-color: #fff;
    padding: 60px 0;
}

.about-content {
    display: flex;
    gap: 50px;
    align-items: center;
    background-color: #f9f9f9;
    padding: 50px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.about-image {
    flex: 1;
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.about-image-carousel {
    display: flex;
    transition: transform 1s ease-in-out;
    will-change: transform;
}

.about-image-item {
    flex: 0 0 100%;
}

.about-image img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    border-radius: 10px;
}

.about-text {
    flex: 1;
}

.about-text h2 {
    color: #0d5e6e;
    font-size: 28px;
    margin-bottom: 20px;
}

.about-text p {
    color: #666;
    margin-bottom: 15px;
    line-height: 1.8;
}

.btn-more {
    background-color: transparent;
    color: #1e3c72;
    border: 2px solid #d4af37;
    padding: 12px 30px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    border-radius: 30px;
    transition: all 0.3s;
    margin-top: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.25);
}

.btn-more:hover {
    background: linear-gradient(135deg, #d4af37 0%, #f4d03f 100%);
    color: #1e3c72;
    border-color: #d4af37;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.btn-more::before {
    content: '';
    position: absolute;
    top: 0;
    left: -30%;
    width: 30%;
    height: 100%;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.45), rgba(255, 255, 255, 0));
    transform: skewX(-20deg);
    transition: left 0.6s ease;
}

.btn-more:hover::before {
    left: 130%;
}

/* 公司环境 */
.environment-section {
    background-color: #f5f5f5;
    padding: 60px 0;
}

.section-title {
    text-align: center;
    color: var(--primary-blue);
    font-size: 40px;
    margin-bottom: 60px;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 3px;
    position: relative;
    padding-bottom: 25px;
    text-shadow: 0 2px 0 rgba(197, 165, 114, 0.15), 0 10px 25px rgba(10, 36, 99, 0.12);
}

.section-title::before {
    content: '';
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    background: radial-gradient(circle, rgba(197, 165, 114, 0.2), transparent);
    border-radius: 50%;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--accent-gold), var(--light-gold), var(--accent-gold), transparent);
    border-radius: 2px;
}

.environment-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.environment-item img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    border: 2px solid var(--secondary-blue);
    border-radius: 10px;
    transition: all 0.4s ease;
    box-shadow: 0 4px 15px rgba(62, 146, 204, 0.2);
}

.environment-item img:hover {
    transform: scale(1.08) rotate(1deg);
    box-shadow: 0 10px 35px rgba(197, 165, 114, 0.5);
    border-color: var(--accent-gold);
}

/* 工程案例 */
.projects-section {
    background-color: #fff;
    padding: 60px 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.project-item {
    position: relative;
    overflow: hidden;
    height: 300px;
    border: 2px solid var(--secondary-blue);
    border-radius: 12px;
    background-color: var(--white);
    box-shadow: 0 4px 15px rgba(62, 146, 204, 0.15);
    transition: all 0.4s ease;
}

.project-item:hover {
    border-color: var(--accent-gold);
    box-shadow: 0 8px 30px rgba(197, 165, 114, 0.4);
}

.project-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(10, 36, 99, 0.95), rgba(10, 36, 99, 0.7), transparent);
    color: var(--white);
    padding: 25px 20px;
    transform: translateY(100%);
    transition: transform 0.4s ease;
}

.project-item:hover img {
    transform: scale(1.15);
}

.project-item:hover .project-overlay {
    transform: translateY(0);
}

.project-overlay p {
    margin: 0;
    font-size: 15px;
    line-height: 1.6;
    font-weight: 500;
    color: var(--light-gold);
}

/* 热销推荐 */
.recommend-section {
    background-color: #f5f5f5;
    padding: 60px 0;
}

.recommend-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.recommend-item {
    background: var(--white);
    padding: 25px;
    border: 2px solid var(--secondary-blue);
    border-radius: 15px;
    box-shadow: 0 6px 20px rgba(62, 146, 204, 0.15);
    transition: all 0.4s ease;
}

.recommend-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(197, 165, 114, 0.35);
    border-color: var(--accent-gold);
}

.recommend-main-img {
    width: 100%;
    height: 340px;
    object-fit: cover;
    margin-bottom: 20px;
    border-radius: 10px;
    border: 2px solid var(--secondary-blue);
}

.recommend-thumbs {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.recommend-thumbs img {
    width: 95px;
    height: 95px;
    object-fit: cover;
    cursor: pointer;
    border: 2px solid var(--secondary-blue);
    border-radius: 8px;
    transition: all 0.3s ease;
    opacity: 0.7;
}

.recommend-thumbs img:hover {
    border-color: var(--accent-gold);
    transform: scale(1.15);
    opacity: 1;
    box-shadow: 0 4px 15px rgba(197, 165, 114, 0.4);
}

/* 精品热销 */
.hot-sales-section {
    background-color: #fff;
    padding: 60px 0;
}

.hot-sales-content {
    display: flex;
    gap: 50px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    padding: 60px;
    border-radius: 20px;
    box-shadow: 0 12px 40px rgba(10, 36, 99, 0.4);
    border: 3px solid var(--accent-gold);
    position: relative;
    overflow: hidden;
}

.hot-sales-content::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(197, 165, 114, 0.1), transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.hot-sales-image {
    position: relative;
    flex: 1;
}

.hot-sales-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    border: 3px solid var(--accent-gold);
}

.badge-number {
    position: absolute;
    top: 25px;
    left: 25px;
    background: linear-gradient(135deg, var(--accent-gold), var(--light-gold));
    color: var(--primary-blue);
    font-size: 40px;
    font-weight: 900;
    padding: 12px 25px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(197, 165, 114, 0.5);
}

.badge-hot {
    position: absolute;
    top: 25px;
    left: 130px;
    background: var(--white);
    color: var(--primary-blue);
    font-size: 16px;
    font-weight: 700;
    padding: 12px 24px;
    border-radius: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
}

.badge-limited {
    position: absolute;
    top: 25px;
    right: 25px;
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: var(--white);
    font-size: 13px;
    font-weight: 700;
    padding: 10px 18px;
    border-radius: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.4);
}

.hot-sales-info {
    flex: 1;
    color: #fff;
}

.hot-sales-info h3 {
    font-size: 20px;
    margin-bottom: 20px;
}

.hot-sales-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.hot-sales-meta span {
    font-size: 14px;
}

.hot-sales-desc {
    font-size: 14px;
    color: #b8dce3;
}

/* 合作伙伴 */
.partners-section {
    background-color: #f5f5f5;
    padding: 60px 0;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.partner-item {
    background: var(--white);
    border: 2px solid var(--secondary-blue);
    padding: 55px 35px;
    text-align: center;
    color: var(--primary-blue);
    font-size: 19px;
    font-weight: 700;
    transition: all 0.4s ease;
    border-radius: 15px;
    box-shadow: 0 6px 20px rgba(62, 146, 204, 0.15);
    letter-spacing: 1px;
}

.partner-item:hover {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--accent-gold);
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 15px 45px rgba(10, 36, 99, 0.4);
    border-color: var(--accent-gold);
}

/* 底部 */
.footer {
    background: linear-gradient(180deg, var(--dark-bg) 0%, var(--primary-blue) 100%);
    padding: 60px 0 30px;
    color: var(--white);
    border-top: 4px solid var(--accent-gold);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--light-gold), transparent);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: 40px;
}

.footer-column {
    flex: 1;
}

.footer-column h3 {
    font-size: 19px;
    margin-bottom: 25px;
    color: var(--accent-gold);
    font-weight: 700;
    border-bottom: 2px solid var(--accent-gold);
    padding-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
    display: inline-block;
}

.footer-column ul li a:hover {
    color: var(--accent-gold);
    transform: translateX(5px);
}

.footer-banner img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

/* 底部导航 */
.bottom-nav {
    background: var(--dark-bg);
    padding: 25px 0;
    text-align: center;
    border-top: 2px solid var(--accent-gold);
    box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.3);
}

.bottom-nav button {
    margin: 0 12px;
    padding: 12px 30px;
    font-size: 13px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    border-radius: 25px;
    transition: all 0.4s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-prev,
.btn-next {
    background: rgba(62, 146, 204, 0.2);
    color: var(--accent-gold);
    border: 1px solid var(--accent-gold);
}

.btn-prev:hover,
.btn-next:hover {
    background: var(--secondary-blue);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-use {
    background: linear-gradient(135deg, var(--accent-gold) 0%, var(--light-gold) 100%);
    color: var(--primary-blue);
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(197, 165, 114, 0.4);
}

.btn-use:hover {
    background: var(--white);
    color: var(--primary-blue);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.5);
}

.btn-more-templates {
    background-color: transparent;
    color: var(--text-light);
    border: 1px solid var(--text-light);
}

.btn-more-templates:hover {
    background: var(--primary-blue);
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

.page-indicator {
    color: var(--accent-gold);
    margin: 0 18px;
    font-size: 15px;
    font-weight: 600;
}

/* 版权 */
.copyright {
    background: #000000;
    padding: 20px 0;
    text-align: center;
    color: #7f8c8d;
    font-size: 12px;
}

.copyright p {
    margin: 0;
    letter-spacing: 0.5px;
}

.copyright a {
    color: var(--accent-gold);
    text-decoration: none;
    transition: color 0.3s;
}

.copyright a:hover {
    color: var(--light-gold);
}

/* 页面横幅 */
.page-banner {
    width: 100%;
    height: 300px;
    overflow: hidden;
}

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

/* 产品详情页 */
.product-detail-section {
    background-color: #fff;
    padding: 60px 0;
}

.detail-breadcrumb h2 {
    color: #1a5f6f;
    font-size: 28px;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 3px solid #1a5f6f;
}

.detail-content {
    display: flex;
    gap: 50px;
    margin-bottom: 40px;
}

.detail-left {
    flex: 1;
}

.detail-image img {
    width: 100%;
    height: auto;
    border: 2px solid #ddd;
    border-radius: 8px;
}

.detail-actions {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

.btn-share,
.btn-collect {
    flex: 1;
    padding: 12px;
    border: 2px solid #1a5f6f;
    background-color: #fff;
    color: #1a5f6f;
    cursor: pointer;
    border-radius: 5px;
    font-size: 14px;
    transition: all 0.3s;
}

.btn-share:hover,
.btn-collect:hover {
    background-color: #1a5f6f;
    color: #fff;
}

.detail-right {
    flex: 1;
}

.product-title {
    color: #333;
    font-size: 26px;
    margin-bottom: 30px;
}

.product-specs {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 8px;
    margin-bottom: 30px;
}

.spec-item {
    padding: 12px 0;
    border-bottom: 1px solid #e0e0e0;
}

.spec-item:last-child {
    border-bottom: none;
}

.spec-label {
    font-weight: bold;
    color: #666;
}

.spec-value {
    color: #333;
}

.spec-price {
    color: #e74c3c;
    font-size: 28px;
    font-weight: bold;
}

.contact-info {
    text-align: center;
}

.btn-contact {
    padding: 15px 40px;
    background-color: #1a5f6f;
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 18px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-contact:hover {
    background-color: #2d8ca0;
}

.article-navigation {
    display: flex;
    justify-content: space-between;
    padding: 20px 0;
    border-top: 1px solid #ddd;
    border-bottom: 1px solid #ddd;
    margin-bottom: 30px;
}

.nav-prev,
.nav-next {
    flex: 1;
}

.nav-prev a,
.nav-next a {
    color: #1a5f6f;
    text-decoration: none;
}

.nav-prev a:hover,
.nav-next a:hover {
    text-decoration: underline;
}

.product-description {
    background-color: #f9f9f9;
    padding: 40px;
    border-radius: 8px;
}

.tab-header {
    margin-bottom: 30px;
}

.tab-btn {
    padding: 12px 30px;
    background-color: #1a5f6f;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.description-content {
    line-height: 1.8;
    color: #666;
}

.description-content h3 {
    color: #1a5f6f;
    margin: 20px 0 10px;
}

.description-content ol {
    padding-left: 20px;
}

.description-content li {
    margin-bottom: 10px;
}

/* 关于我们页面 */
.about-page-section {
    background-color: #fff;
    padding: 60px 0;
}

.about-main-content {
    display: flex;
    gap: 60px;
    align-items: center;
    background-color: #f9f9f9;
    padding: 50px;
    border-radius: 10px;
    margin-bottom: 40px;
}

.about-main-image {
    flex: 1;
}

.about-main-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

.about-main-text {
    flex: 1;
}

.about-main-text h2 {
    color: #1a5f6f;
    font-size: 32px;
    margin-bottom: 25px;
}

.about-main-text p {
    line-height: 1.8;
    color: #666;
    margin-bottom: 15px;
}

.company-environment {
    background-color: #f5f5f5;
    padding: 60px 0;
}

.environment-gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.advantages-section {
    background-color: #fff;
    padding: 60px 0;
}

.advantage-item {
    margin-bottom: 30px;
    padding: 30px;
    background-color: #f9f9f9;
    border-radius: 8px;
    border-left: 4px solid #1a5f6f;
    box-shadow: 0 4px 18px rgba(10, 36, 99, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.advantage-item h3 {
    color: #1a5f6f;
    margin-bottom: 15px;
}

.advantage-item ol {
    padding-left: 20px;
}

.advantage-item li {
    line-height: 1.8;
    color: #666;
    margin-bottom: 10px;
}

.advantage-item:hover {
    transform: translateY(-3px);
    border-left-color: var(--accent-gold);
    box-shadow: 0 10px 30px rgba(197, 165, 114, 0.25);
}

.company-intro-section p {
    color: #666;
}

.gallery-section {
    background-color: #fff;
    padding: 60px 0;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    background-color: #f9f9f9;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.gallery-item::before {
    content: "";
    display: block;
    padding-top: 66.6667%;
}

.gallery-item img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gallery-item::after {
    content: "";
    position: absolute;
    top: 0;
    left: -50%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.0), rgba(255, 255, 255, 0.35), rgba(255, 255, 255, 0.0));
    transform: skewX(-20deg);
    transition: left 0.6s ease;
}

.gallery-item:hover::after {
    left: 120%;
}

/* 联系方式页面 */
.contact-section {
    background-color: #fff;
    padding: 60px 0;
}

.contact-header {
    display: flex;
    gap: 50px;
    align-items: center;
    margin-bottom: 40px;
}

.contact-info-box {
    flex: 1;
    padding: 40px;
    background-color: #f9f9f9;
    border-radius: 8px;
}

.contact-info-box h2 {
    color: #1a5f6f;
    font-size: 32px;
    margin-bottom: 20px;
}

.contact-info-box p {
    line-height: 1.8;
    color: #666;
    margin-bottom: 15px;
}

.highlight-text {
    color: #1a5f6f;
    font-weight: bold;
}

.contact-image-box {
    flex: 1;
}

.contact-image-box img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

.map-section {
    margin-bottom: 40px;
}

.map-container {
    width: 100%;
    height: 450px;
    overflow: hidden;
}

.map-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.contact-details {
    background-color: #f5f5f5;
    padding: 60px 0;
}

.contact-items {
    display: flex;
    justify-content: space-around;
    gap: 40px;
}

.contact-detail-item {
    flex: 1;
    text-align: center;
    padding: 40px 20px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.contact-detail-item:hover {
    transform: translateY(-5px);
}

.contact-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.contact-detail-item h3 {
    color: #1a5f6f;
    font-size: 20px;
    margin-bottom: 15px;
}

.contact-detail-item p {
    color: #666;
    line-height: 1.6;
}

}

@media (max-width: 768px) {
    .cta-group {
        grid-template-columns: 1fr;
    }

    .hours-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* 留言板页面 */
.message-section {
    background-color: #fff;
    padding: 80px 0;
}

.message-box {
    max-width: 900px;
    margin: 0 auto;
    background-color: #f9f9f9;
    padding: 50px;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
}

.message-box h2 {
    color: #1a5f6f;
    font-size: 28px;
    margin-bottom: 30px;
}

.message-form {
    width: 100%;
}

.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    flex: 1;
}

.form-group.full-width {
    width: 100%;
}

.form-group label {
    display: block;
    color: #333;
    font-weight: bold;
    margin-bottom: 8px;
}

.required {
    color: #e74c3c;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #1a5f6f;
}

.form-submit {
    text-align: center;
    margin-top: 30px;
}

.btn-submit {
    padding: 15px 60px;
    background-color: #1a5f6f;
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 18px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-submit:hover {
    background-color: #2d8ca0;
}

/* 新闻中心页面 */
.news-section {
    background-color: #fff;
    padding: 60px 0;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.news-item {
    display: flex;
    gap: 30px;
    background-color: #f9f9f9;
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.news-item:hover {
    transform: translateX(5px);
    box-shadow: 0 10px 25px rgba(10, 36, 99, 0.15);
}

.news-image {
    flex: 0 0 300px;
}

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

.news-content {
    flex: 1;
    padding: 30px;
}

.news-content h3 {
    margin-bottom: 15px;
}

.news-content h3 a {
    color: #1a5f6f;
    text-decoration: none;
    font-size: 22px;
    transition: color 0.3s;
}

.news-content h3 a:hover {
    color: #2d8ca0;
}

.news-excerpt {
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
}

.news-meta {
    color: #999;
    font-size: 14px;
}

.news-date {
    color: #1a5f6f;
}

/* 新闻详情页面 */
.news-detail-section {
    background-color: #fff;
    padding: 60px 0;
}

.news-detail-content {
    max-width: 900px;
    margin: 0 auto;
    background-color: #fff;
    padding: 50px;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
}

.news-title {
    color: #1a5f6f;
    font-size: 32px;
    margin-bottom: 20px;
    line-height: 1.4;
    text-shadow: 0 2px 0 rgba(197, 165, 114, 0.12);
    position: relative;
}

.news-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent-gold), var(--light-gold), var(--accent-gold), transparent);
    border-radius: 2px;
}

.news-info {
    color: #999;
    font-size: 14px;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f0f0f0;
}

.publish-date {
    color: #666;
}

.news-body {
    line-height: 2;
    color: #666;
}

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

.news-footer {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 2px solid #f0f0f0;
}

.news-prev-next {
    margin-bottom: 30px;
}

.prev-article {
    color: #1a5f6f;
    text-decoration: none;
    font-size: 16px;
}

.prev-article:hover {
    text-decoration: underline;
}

.share-buttons {
    display: flex;
    align-items: center;
    gap: 15px;
}

.share-buttons span {
    color: #666;
    font-weight: bold;
}

.share-btn {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    transition: transform 0.3s;
}

.share-btn:hover {
    transform: scale(1.2);
}

/* 产品中心页面 */
.featured-products {
    background: linear-gradient(135deg, #1a5f6f 0%, #2d8ca0 100%);
    padding: 60px 0;
}

.featured-product-card {
    display: flex;
    gap: 50px;
    align-items: center;
}

.featured-left {
    flex: 1;
}

.featured-left img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.featured-right {
    flex: 1;
    color: #fff;
}

.featured-badge {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
}

.badge-num {
    background-color: #fff;
    color: #ff6600;
    padding: 10px 20px;
    border-radius: 5px;
    font-size: 36px;
    font-weight: bold;
}

.badge-text {
    background-color: #ffcc00;
    color: #333;
    padding: 10px 20px;
    border-radius: 5px;
    font-size: 18px;
    font-weight: bold;
    align-self: center;
}

.badge-days {
    background-color: #ffcc00;
    color: #333;
    padding: 10px 15px;
    border-radius: 5px;
    font-size: 14px;
    align-self: center;
}

.featured-right h3 {
    font-size: 24px;
    margin-bottom: 20px;
}

.featured-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.featured-note {
    color: #e0f0f5;
}

.products-showcase {
    background-color: #f5f5f5;
    padding: 60px 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.product-card {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
    border: 2px solid transparent;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 28px rgba(197, 165, 114, 0.25);
    border-color: rgba(197, 165, 114, 0.35);
}

.product-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.product-info {
    padding: 20px;
    background-color: #1a5f6f;
    color: #fff;
    text-align: center;
}

.recommend-showcase {
    background-color: #fff;
    padding: 60px 0;
}

.recommend-products {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.recommend-card {
    background-color: #f9f9f9;
    padding: 25px;
    border-radius: 8px;
    border: 2px solid #ddd;
}

.main-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 5px;
    margin-bottom: 15px;
}

.thumb-images {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.thumb-images img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border: 2px solid #ddd;
    border-radius: 5px;
    cursor: pointer;
    transition: border-color 0.3s;
}

.thumb-images img:hover {
    border-color: #1a5f6f;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--accent-gold);
    font-size: 28px;
    cursor: pointer;
    padding: 10px;
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1001;
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block !important;
    }

    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--dark-bg);
        z-index: 1000;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    }

    .nav-menu.mobile-active {
        display: flex !important;
    }

    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid rgba(197, 165, 114, 0.2);
    }

    .nav-menu li a {
        display: block;
        padding: 15px 20px;
        text-align: center;
    }

    .nav {
        position: relative;
    }
}

/* Smooth Transitions */
* {
    -webkit-tap-highlight-color: transparent;
}

img {
    max-width: 100%;
    height: auto;
}

/* Performance Optimization */
.banner-slide,
.product-nav-carousel,
.about-image-carousel {
    will-change: transform, opacity;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .container {
        padding: 0 15px;
    }
}

@media (max-width: 1024px) {

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

    .partners-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .recommend-grid,
    .recommend-products {
        grid-template-columns: 1fr;
    }

    .environment-gallery {
        grid-template-columns: repeat(3, 1fr);
    }

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

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }

    .header {
        padding: 15px 0;
    }

    .nav-menu {
        flex-wrap: wrap;
        gap: 0;
        justify-content: center;
    }

    .nav-menu li a {
        padding: 12px 15px;
        font-size: 13px;
    }

    .banner {
        height: 400px;
    }

    .banner-subtitle {
        font-size: 18px;
        letter-spacing: 4px;
    }

    .banner-content h2 {
        font-size: 28px;
    }

    .banner-content p {
        font-size: 16px;
    }

    .btn-primary {
        padding: 12px 25px;
        font-size: 14px;
    }

    .product-nav-item {
        flex: 0 0 50%;
    }

    .product-nav-item img {
        height: 150px;
    }

    .about-content,
    .about-main-content,
    .contact-header,
    .featured-product-card {
        flex-direction: column;
    }

    .environment-grid,
    .environment-gallery {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .projects-grid,
    .products-grid {
        grid-template-columns: 1fr;
    }

    .hot-sales-content {
        flex-direction: column;
        padding: 30px;
    }

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

    .footer-content {
        flex-direction: column;
        gap: 30px;
    }

    .detail-content {
        flex-direction: column;
    }

    .form-row {
        flex-direction: column;
    }

    .news-item {
        flex-direction: column;
    }

    .news-image {
        flex: 0 0 200px;
    }

    .contact-items {
        flex-direction: column;
    }

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

    .message-box {
        padding: 30px 20px;
    }

    .news-detail-content {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 16px;
    }

    .header-desc p {
        font-size: 11px;
    }

    .phone-number {
        font-size: 14px;
    }

    .banner {
        height: 350px;
    }

    .banner-subtitle {
        font-size: 14px;
        letter-spacing: 2px;
        margin-bottom: 10px;
    }

    .banner-content h2 {
        font-size: 20px;
        margin-bottom: 15px;
    }

    .banner-content p {
        font-size: 14px;
        margin-bottom: 20px;
    }

    .btn-primary {
        padding: 10px 20px;
        font-size: 12px;
        letter-spacing: 1px;
    }

    .banner-prev,
    .banner-next {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }

    .product-nav-item {
        flex: 0 0 100%;
    }

    .product-nav-item img {
        height: 200px;
    }

    .section-title {
        font-size: 18px;
        margin-bottom: 25px;
    }

    .about-content {
        padding: 25px;
    }

    .about-image img {
        height: 250px;
    }

    .environment-grid,
    .environment-gallery,
    .partners-grid {
        grid-template-columns: 1fr;
    }

    .bottom-nav {
        padding: 15px 10px;
    }

    .bottom-nav button {
        padding: 8px 12px;
        font-size: 11px;
        margin: 3px;
    }

    .page-indicator {
        font-size: 11px;
        margin: 0 5px;
    }

    .hot-sales-content {
        padding: 20px;
    }

    .featured-product-card {
        padding: 20px;
    }
}

/* Readability Upgrade */
.about-main-text p {
    line-height: var(--line-height-body);
    color: #666;
    margin-bottom: 1em;
    font-size: var(--font-size-body);
    max-width: var(--measure);
    letter-spacing: 0.2px;
    text-wrap: pretty;
}

.company-intro-section p {
    color: #666;
    font-size: var(--font-size-body);
    line-height: var(--line-height-body);
    margin-bottom: 1em;
    max-width: var(--measure);
    letter-spacing: 0.2px;
    text-wrap: pretty;
}

.description-content {
    line-height: var(--line-height-body);
    color: #666;
    font-size: var(--font-size-body);
    max-width: var(--measure);
    margin: 0 auto;
}

.contact-info-box p {
    line-height: var(--line-height-body);
    color: #666;
    margin-bottom: 1em;
    font-size: var(--font-size-body);
    max-width: var(--measure);
    letter-spacing: 0.2px;
    text-wrap: pretty;
}

.news-excerpt {
    color: #666;
    line-height: var(--line-height-body);
    margin-bottom: 1em;
    font-size: 16.5px;
    max-width: 70ch;
    letter-spacing: 0.2px;
    text-wrap: pretty;
}

.news-body {
    line-height: 1.95;
    color: #333;
    font-size: 17px;
    max-width: var(--measure);
    margin: 0 auto;
}

.news-body p {
    margin-bottom: 1em;
    letter-spacing: 0.2px;
    text-wrap: pretty;
}

.description-content ul,
.description-content ol,
.company-intro-section ul,
.company-intro-section ol,
.news-body ul,
.news-body ol {
    padding-left: 1.2em;
    margin-bottom: 1em;
}

.description-content li,
.company-intro-section li,
.news-body li {
    margin-bottom: 0.6em;
    line-height: var(--line-height-body);
}

.description-content a,
.company-intro-section a,
.news-body a {
    color: var(--primary-blue);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1.5px;
}

.description-content a:hover,
.company-intro-section a:hover,
.news-body a:hover {
    color: var(--secondary-blue);
}

::selection {
    background: rgba(197, 165, 114, 0.35);
    color: #0a2463;
}

.product-alt-section {
    background-color: #fff;
    padding: 60px 0;
}

.product-alt-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.product-alt-item {
    display: flex;
    align-items: center;
    gap: 40px;
    padding: 30px 0;
    border-bottom: 1px solid #eee;
}

.product-alt-item:last-child {
    border-bottom: none;
}

.product-alt-item:nth-child(even) {
    flex-direction: row-reverse;
}

.alt-image {
    flex: 1;
}

.alt-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    border: 2px solid #ddd;
    box-shadow: 0 6px 20px rgba(10, 36, 99, 0.08);
}

.alt-text {
    flex: 1;
}

.alt-title {
    font-size: 24px;
    color: #1a5f6f;
    margin-bottom: 15px;
    letter-spacing: 0.5px;
    font-weight: 700;
}

.alt-subtitle {
    font-size: 16px;
    color: #1a5f6f;
    margin: 15px 0 10px;
    font-weight: 600;
}

.alt-specs {
    padding-left: 20px;
    color: #666;
    line-height: 1.8;
}

.alt-desc {
    color: #666;
    line-height: 1.8;
}

@media (max-width: 768px) {
    .product-alt-item {
        flex-direction: column;
    }
}

/* Inline outline button for text sections */
.btn-outline {
    display: inline-block;
    padding: 10px 18px;
    font-size: 14px;
    border: 2px solid #1a5f6f;
    color: #1a5f6f;
    border-radius: 6px;
    text-decoration: none;
    background: transparent;
    transition: all 0.2s ease;
    line-height: 1;
}

.btn-outline:hover {
    background: #1a5f6f;
    color: #fff;
}