/* ===================================
   1. 全局基础设置
   =================================== */
* {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    overflow-x: hidden;
    font-size: 1.25rem;
    line-height: 1.6;
    color: #000000;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
}

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

a {
    text-decoration: none;
    color: inherit;
}

/* ===================================
   2. 标题样式
   =================================== */
h1 {
    font-size: 2.375rem;
    color: #E08B37;
    line-height: 1.3;
    margin: 0;
    font-weight: 400;
    text-align: center;
    padding: 10px 0;
}

h2 {
    font-size: 1.5625rem;
    color: #000000;
    line-height: 1.4;
    margin: 0 0 15px 0;
    font-weight: 400;
}

h3 {
    font-size: 1.5625rem;
    color: #E08B37;
    line-height: 1.4;
    margin: 0 0 12px 0;
    font-weight: 400;
}

h4 {
    font-size: 1.5625rem;
    color: #FFFFFF;
    line-height: 1.4;
    margin: 0;
    font-weight: 400;
}

h5 {
    font-size: 2.8125rem;
    color: #000000;
    line-height: 1.3;
    margin: 0;
    font-weight: 400;
}

/* ===================================
   3. 文本样式
   =================================== */
p {
    margin: 0 0 12px 0;
}

ul,
ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

.note {
    color: #E08B37;
    font-size: 0.8em;
}

.tax {
    font-size: 0.9em;
    color: #666;
}

/* ===================================
   4. 布局工具类
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0;
}

.full-width-image {
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
}

/* ===================================
   5. Logo区域(可滚动)
   =================================== */
.logo-section {
    width: 100%;
    background: #fff;
}

.logo-section .container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.logo-section .logo {
    text-align: center;
}

.logo-section .logo img {
    margin: 0 auto;
    display: inline-block;
}

/* ===================================
   6. 页面头部(固定导航)
   =================================== */
header {
    width: 100%;
    background: #fff;
    position: relative;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

header.fixed {
    position: fixed;
    top: 0;
    left: 0;
}

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

header .logo {
    display: none;
}

/* 手机端logo(默认隐藏) */
header .mobile-logo {
    display: none;
}

header nav {
    width: 100%;
}

header nav ul {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 0;
    margin: 0;
    list-style: none;
}

header nav a {
    color: #000000;
    font-size: 1.125rem;
    transition: color 0.3s ease;
    white-space: nowrap;
}

header nav a:hover {
    color: #E08B37;
}

header nav a.active {
    color: #E08B37;
    font-weight: 500;
}

header nav a:focus {
    outline: none;
}

header nav a:active {
    color: #E08B37;
}

/* 在header部分添加以下规则 */
header .mobile-logo {
    display: none !important;
}

header .nav-toggle {
    display: none !important;
}

/* ===================================
   7. 首屏视频区域
   =================================== */
.hero {
    position: relative;
    width: 100%;
    height: 800px;
    overflow: hidden;
    background-color: #000;
    margin-bottom: 0;
}

.hero .container {
    width: 100%;
    height: 100%;
    padding: 0;
    max-width: none;
}

.hero-video {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.hero-video video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
}

/* ===================================
   8. 产品介绍区域
   =================================== */
.product-intro {
    padding: 60px 0px 0;
    background-color: #ffffff;
}

/* 公告区域 - 全局样式 */
.announcement-wrapper {
    text-align: center;
    padding: 0 20px;
    max-width: 1900px;
    margin: 0 auto 60px;
}

/* Product Intro 区域的标题 */
.product-intro .announcement-wrapper {
    padding: 0 20px;
    margin-bottom: 60px;
}

.announcement-wrapper h1 {
    padding: 5px 0;
    margin: 5px 0;
}

/* 装饰线 */
.title-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 15px auto;
    max-width: 600px;
}

.title-divider .line {
    flex: 1;
    /* ✅ 左右线条会自动等长 */
    height: 1px;
    background-color: #EBB47F;
}


.title-divider .circle-icon {
    width: 15px;
    height: 15px;
    flex-shrink: 0;
}

/* 全宽产品大图 */
.product-intro .container>img:not([src*="img/jewelry/all jewelry.png"]) {
    width: 100vw !important;
    max-width: none !important;
    min-width: 100vw !important;
    height: auto;
    margin-left: calc(-50vw + 50%) !important;
    margin-right: calc(-50vw + 50%) !important;
    padding: 0 !important;
    display: block;
    object-fit: cover;
}

/* 图文组合行容器 */
.intro-row {
    display: flex;
    align-items: center;
    gap: 50px;
    margin: 0px auto;
    max-width: 1920px;
    padding: 0 0px;
}

/* 第一行：图片在右贴边 */
.intro-row.image-right {
    flex-direction: row-reverse;
    justify-content: flex-start;
}

/* 第二行：图片在左贴边 */
.intro-row.image-left {
    flex-direction: row;
    justify-content: flex-start;
}

/* 图片容器 - 固定800px宽度 */
.intro-row .intro-image {
    flex: 0 0 800px;
    width: 800px;
    max-width: 800px;
}

.intro-row .intro-image img {
    width: 800px;
    height: auto;
    display: block;
}

/* 文字容器 - 占据剩余空间 */
.intro-row .intro-content {
    flex: 1;
    padding: 0 190px;
}

/* 第一行文字右对齐 */
.intro-row.image-right .intro-content {
    text-align: right;
}

/* 第二行文字左对齐 */
.intro-row.image-left .intro-content {
    text-align: left;
}

.intro-content h2 {
    margin-bottom: 20px;
}

.intro-content p {
    margin-bottom: 12px;
    line-height: 1.8;
}

/* R3含义列表 */
.intro-content .r3-meaning {
    margin: 20px 0;
    list-style: none;
}

/* 第一行的R3列表右对齐 */
.intro-row.image-right .r3-meaning {
    text-align: right;
}

/* 第二行的R3列表左对齐 */
.intro-row.image-left .r3-meaning {
    text-align: left;
}

.r3-meaning li {
    margin: 5px 0;
}

.r3-meaning h2 {
    margin: 8px 0;
    display: inline-block;
}

.intro-content .note {
    color: #E08B37;
    font-size: 0.9em;
}


/* ===================================
   9. 产品集合区域
   =================================== */
.collection {
    background-color: #ffffff;
    padding: 60px 20px 0;
}

/* Collection 标题区域 */
.collection .announcement-wrapper {
    padding: 0 20px;
    margin-bottom: 60px;
}

.collection h1 {
    color: #E08B37;
    padding: 5px 0;
    margin: 5px 0;
}

.collection-grid {
    display: grid;
    grid-template-columns: repeat(4, 380px);
    gap: 30px;
    max-width: none;
    margin: 0 auto;
    justify-content: center;
    background-color: #000000;
    padding: 80px 20px;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
}

.collection-item {
    text-align: center;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.5s ease;
    display: block;
}

.collection-item:hover {
    transform: scale(1.05);
}

/* 点击后保持放大状态 */
.collection-item.clicked {
    transform: scale(1.05);
}

/* 点击后1秒恢复原状的过渡效果 */
.collection-item.clicked {
    animation: clickEffect 1s ease forwards;
}

@keyframes clickEffect {
    0% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
    }
}

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

/* 橙色叠加层 */
.collection-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(224, 139, 55, 0.712);
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: 1;
    pointer-events: none;
}

.collection-item:hover::before {
    opacity: 1;
}

/* 点击后隐藏遮罩层 */
.collection-item.clicked::before {
    opacity: 0 !important;
}

/* 文字绝对定位在中间 */
.collection-item h4,
.collection-item h5 {
    position: absolute;
    left: 50%;
    margin: 0;
    padding: 0 20px;
    width: 95%;
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: 2;
    pointer-events: none;
}

.collection-item h4 {
    top: 40%;
    transform: translate(-50%, -50%);
    line-height: 2;
    font-size: 1.375rem;
    letter-spacing: 0.05em;
}

.collection-item h5 {
    top: 60%;
    transform: translate(-50%, -50%);
    line-height: 1.5;
    letter-spacing: 0.08em;
}

.collection-item:hover h4,
.collection-item:hover h5 {
    opacity: 1;
}

/* 点击后隐藏文字 */

.collection-item.clicked h4,
.collection-item.clicked h5 {
    opacity: 0 !important;
}

/* ===================================
   10. 产品详情区域
   =================================== */
.details {
    background-color: #ffffff;
    padding: 60px 0 0;
}

/* Details 标题区域 */
.details .announcement-wrapper {
    padding: 0 20px;
    margin-bottom: 0;
}

/* 在详细标题和第一个商品之间添加60px间距 */
.details .announcement-wrapper .product-detail:first-of-type {
    margin-top: 60px;
}

.details .container {
    max-width: 1400px;
}

.product-detail {
    display: flex;
    gap: 200px;
    margin-bottom: 200px;
    align-items: center;
    max-width: 1920px;
    margin-left: auto;
    margin-right: auto;
}

/* 最后一个产品下方无间距 */
.product-detail:last-child {
    margin-bottom: 0;
}

/* 奇偶行交替排列 */
.product-detail:nth-child(odd) {
    flex-direction: row;
}

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

/* 产品图片区域 */
.product-images {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.product-image-main {
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
}

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

.product-image-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.product-image-thumb {
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.product-image-thumb:hover {
    opacity: 0.85;
    border-color: #E08B37;
    transform: scale(1.02);
}

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

/* 产品信息 */
.product-info {
    flex: 1;
    padding: 20px 0;
    text-align: left;
}

.product-info h2 {
    margin-bottom: 50px;
    font-size: 1.75rem;
}

/* 产品规格 */
.product-specs {
    margin-bottom: 30px;
}

.spec-row {
    display: flex;
    margin-bottom: 12px;
    line-height: 1.8;
}

.product-specs dt {
    flex: 0.1 0 180px;
    font-weight: 500;
    color: #333;
}

.product-specs dd {
    flex: 2.5;
    margin: 0;
}

/* ===================================
   11. 店铺信息区域
   =================================== */
.boutique {
    background-color: #ffffff;
    padding: 60px 20px 0;
}

/* Boutique 第一个title-divider */
.boutique .title-divider:first-child {
    margin-bottom: 0;
}

.boutique h1 {
    padding: 5px 0;
    margin: 5px 0;
}

/* 最后一个title-divider下方60px到store-list */
.boutique .title-divider:nth-of-type(2) {
    margin-bottom: 60px;
}

.store-list {
    max-width: 1200px;
    margin: 0 auto 60px;
    text-align: center;
}

.store-list h2 {
    margin-bottom: 25px;
    text-align: center;
}

.store-list ul {
    display: flex;
    justify-content: center;
    gap: 100px;
    flex-wrap: wrap;
}

.store-list ul li {
    padding: 0;
    border-bottom: none;
}

/* 店铺地图 - 全宽 */
.store-map {
    margin: 0;
}

.store-map img {
    width: 100vw;
    max-width: none;
    margin: 0 0 0 calc(-50vw + 50%);
}

/* ===================================
   12. 服务区域 - 更新样式
   =================================== */
.service {
    background-color: #ffffff;
    padding: 60px 20px 0;
}

.service h1 {
    margin-top: 0;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.service-item {
    text-align: center;
    padding: 40px 0px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-icon img {
    max-width: 100%;
    max-height: 100%;
}

.service-item h3 {
    margin-bottom: 15px;
}

.service-item p {
    line-height: 1.8;
    margin-bottom: 25px;
    min-height: 145px;
    /* ← 新增这一行 */
}

.service-image {
    margin-top: 0;
    /* ← 从25px改为0 */
    width: 100%;
    max-width: 385px;
}

.service-image img {
    width: 100%;
    height: auto;
    transition: transform 0.3s ease;
}

.service-image img:hover {
    transform: scale(1.02);
}

.contact-email {
    color: #E08B37;
    font-weight: 500;
    font-size: 1.125rem;
}

/* ===================================
   13. 页脚
   =================================== */
footer {
    background-color: #2c2c2c;
    color: #ffffff;
    padding: 60px 20px 40px;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin-bottom: 30px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    align-items: center;
}

footer .logo {
    text-align: center;
}

.footer-social h2 {
    color: #ffffff;
    margin-bottom: 15px;
    font-size: 1.25rem;
}

.social-icons {
    display: flex;
    flex-direction: row;
    gap: 40px;
    align-items: center;
    justify-content: center;
}

.social-icon {
    display: flex;
    align-items: center;
    color: #ffffff;
    transition: color 0.3s ease;
}

.social-icon:hover {
    color: #E08B37;
}

.social-icon img {
    width: 45px;
    flex-shrink: 0;
}

/* 页脚底部 */
.footer-bottom {
    text-align: center;
    padding-top: 25px;
    border-top: 1px solid #444;
}

.footer-links h2 {
    color: #ffffff;
    margin-bottom: 15px;
    font-size: 1.25rem;
}

.footer-links ul {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.footer-links ul li {
    margin-bottom: 0;
}

.footer-links ul li a {
    color: #ffffff7a;
    transition: color 0.3s ease;
}

.footer-links ul li a:hover {
    color: #ebb47f;
}

/* ===================================
   14. 响应式设计 - 大屏幕 (1025px-1700px) iPad Pro & Desktop
   =================================== */
@media (min-width: 1025px) and (max-width: 1700px) {

    /* 全宽产品大图 - 保持原始宽度不超出 */
    .product-intro .container>img:not([src*="img/jewelry/all jewelry.png"]) {
        width: 100vw !important;
        min-width: 100vw !important;
    }

    /* 装饰线 - 保持合理宽度 */
    .title-divider {
        max-width: 600px;
        margin: 18px auto;
    }

    /* 标题区域行高优化 - 防止文字拥挤 */
    .announcement-wrapper h1 {
        line-height: 1.8;
        margin: 12px 0;
        padding: 8px 0;
    }

    /* Product Intro 标题区域间距 */
    .product-intro .announcement-wrapper {
        margin-bottom: 60px;
    }

    /* --- 产品介绍区域改为垂直布局 --- */
    .intro-row {
        flex-direction: column !important;
        gap: 30px;
        margin: 40px auto;
        padding: 0 40px;
        max-width: 1200px;
    }

    /* 图片容器 - 全宽显示 */
    .intro-row .intro-image {
        width: 100%;
        flex: none;
        max-width: 100%;
    }

    .intro-row .intro-image img {
        width: 100%;
        max-width: 100%;
    }

    /* 文字容器 - 全宽居中对齐 */
    .intro-row .intro-content {
        width: 100%;
        padding: 0 20px;
        text-align: center !important;
    }

    /* R3列表居中对齐 */
    .intro-row .r3-meaning {
        text-align: center !important;
        margin: 20px 0;
    }

    .intro-content p {
        text-align: center;
    }

    /* Collection 标题区域间距 */
    .collection .announcement-wrapper {
        margin-bottom: 60px;
    }

    /* Collection标题行高 */
    .collection h1 {
        line-height: 1.8;
        margin: 12px 0;
    }

    /* --- Collection区域防止超出 --- */
    .collection {
        padding: 60px 20px 0;
        overflow-x: hidden;
    }

    /* Collection网格适配 - 保持全宽黑色背景 */
    .collection-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 380px));
        gap: 25px;
        padding: 60px 20px;
        max-width: none;
        width: 100vw;
        margin-left: calc(-50vw + 50%);
        justify-content: center;
        background-color: #000000;
    }
}

/* ===================================
   14. 响应式设计 - 平板 (max-width: 1024px)
   =================================== */
@media (max-width: 1024px) {

    /* --- 基础字体大小 --- */
    html {
        font-size: 14px;
    }

    body {
        font-size: 1rem;
    }

    /* --- 标题字体 --- */
    h1 {
        font-size: 1.5rem;
        padding: 8px 0;
    }

    h2 {
        font-size: 1.3rem;
        margin-bottom: 12px;
    }

    h3 {
        font-size: 1.125rem;
    }

    h4 {
        font-size: 1.125rem;
    }

    h5 {
        font-size: 1.125rem;
    }

    /* --- Logo区域 --- */
    .logo-section {
        padding: 12px 0;
    }

    .logo-section .logo img {
        width: 110px;
    }

    /* --- 导航栏 --- */
    header .container {
        padding: 15px 15px;
    }

    header nav ul {
        gap: 15px;
    }

    header nav a {
        font-size: 1.25rem;
    }

    /* 小屏手机端防止点击后保持高亮 */
    header nav a:focus,
    header nav a:active,
    header nav a:visited {
        color: #000000 !important;
    }

    header nav a.active {
        color: #E08B37 !important;
    }

    header nav a:hover {
        color: #000000;
    }

    /* --- 首屏视频区域 --- */
    .hero {
        height: 450px;
        margin-bottom: 35px;
    }

    .hero-video video {
        object-fit: cover;
        width: 100%;
        height: 100%;
        object-position: center center;
        min-width: 100%;
        min-height: 100%;
    }

    /* --- 装饰线 --- */
    .title-divider {
        gap: 12px;
        margin: 10px auto;
        max-width: 35%;
    }

    .title-divider .circle-icon {
        width: 14px;
        height: 14px;
    }

    .product-intro .announcement-wrapper {
        margin-bottom: 25px;
    }

    /* --- 四大产品大图 --- */
    .product-intro .container>img:not([src*="img/jewelry/all jewelry.png"]) {
        width: 120vw !important;
    }

    /* --- 产品介绍区域 --- */
    .product-intro {
        padding: 15px 25px 0;
    }

    .announcement-wrapper {
        padding: 0 20px;
        margin-bottom: 35px;
    }

    .product-intro .container>img {
        margin-bottom: -5px;
    }

    .intro-row {
        flex-direction: column !important;
        gap: 25px;
        margin: 35px auto;
        padding: 0 18px;
    }

    .intro-row .intro-image {
        width: 100%;
        flex: none;
    }

    .intro-row .intro-image img {
        width: 100%;
    }

    .intro-row .intro-content {
        width: 100%;
        padding: 0;
        text-align: left !important;
    }

    .intro-row .r3-meaning {
        text-align: left !important;
        margin: 18px 0;
    }

    .r3-meaning li {
        margin: 5px 0;
    }

    .intro-content p {
        margin-bottom: 10px;
        font-size: 0.95rem;
    }

    .intro-content .r3-meaning {
        margin: 18px 0;
    }

    /* --- 产品集合区域 --- */
    .collection {
        padding: 15px 25px 0;
    }

    .collection .announcement-wrapper {
        margin-bottom: 35px;
    }

    .collection-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 28px;
        padding: 45px 20px;
        background-color: #000000;
    }

    .collection-item {
        display: flex;
        flex-direction: column;
        background-color: transparent;
        transform: none;
    }

    .collection-item::before {
        display: none;
    }

    .collection-item:hover {
        transform: none;
    }

    .collection-item:hover::before {
        opacity: 0;
    }

    .collection-item h4,
    .collection-item h5 {
        position: static;
        transform: none;
        opacity: 1 !important;
        width: 100%;
        text-align: center;
        color: #FFFFFF;
        pointer-events: auto;
    }

    .collection-item h4 {
        font-size: 1.4rem;
        margin-top: 15px;
        padding: 12px 18px;
        line-height: 1.6;
        color: #fff;
    }

    .collection-item h5 {
        font-size: 2.8rem;
        padding: 8px 18px;
        line-height: 1.3;
        color: #E08B37;
    }

    .collection-item:hover h4,
    .collection-item:hover h5 {
        opacity: 1 !important;
    }

    .collection-item img {
        width: 75%;
        height: auto;
        display: block;
        margin: 0 auto;
    }

    /* --- 产品详情区域 --- */
    .details {
        padding: 35px 0 0;
    }

    .details .announcement-wrapper {
        margin-bottom: 0px;
    }

    .product-detail {
        flex-direction: column !important;
        gap: 25px;
        margin-bottom: 50px;
    }

    .product-images {
        width: 100%;
        gap: 10px;
    }

    .product-image-gallery {
        gap: 8px;
    }

    .product-info {
        width: 100%;
        padding: 18px;
        margin-bottom: 40px;
    }

    .product-info h2 {
        margin-bottom: 28px;
        font-size: 1.3rem;
    }

    .product-specs {
        font-size: 1.125rem;
        margin-bottom: 0px;
    }

    .spec-row {
        flex-direction: row;
        gap: 10px;
        margin-bottom: 12px;
        align-items: flex-start;
    }

    .product-specs dt {
        flex: 0 0 auto;
        margin-bottom: 0;
        white-space: nowrap;
    }

    .product-specs dd {
        flex: 1;
        margin: 0;
    }

    /* --- 店铺信息区域 --- */
    .boutique .title-divider:nth-of-type(2) {
        margin-bottom: 30px;
    }

    .boutique {
        padding: 15px 25px 0;
    }

    .store-list {
        margin: 0 auto 20px;
        font-size: 1.2rem;
    }

    .store-list h2 {
        margin-bottom: 18px;
    }

    .store-list ul {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }

    /* --- 服务区域 --- */

    .service {
        padding: 15px 25px 0;
        margin-bottom: 40px;
    }

    .service-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 28px;
    }

    .service-item {
        padding: 35px 42px;
    }

    .service-image {
        margin-top: 20px;
        max-width: 100%;
    }

    .service-item h3 {
        font-size: 1.3rem;
    }

    .service-item p {
        font-size: 1.05rem;
        min-height: 0px;
    }

    .service-icon {
        width: 70px;
        height: 70px;
        margin-bottom: 15px;
    }

    .contact-email {
        font-size: 0.95rem;
    }

    /* --- 页脚 --- */
    footer {
        padding: 45px 18px 28px;
    }

    footer .logo img {
        width: 120px;
    }

    .footer-content {
        gap: 28px;
        margin-bottom: 22px;
    }

    .social-icons {
        gap: 28px;
    }

    .social-icon img {
        width: 42px;
    }

    .footer-bottom {
        padding-top: 20px;
    }

    .footer-links ul {
        gap: 18px;
        font-size: 0.85rem;
    }
}

/* ===================================
   15. 响应式设计 - 手机 (max-width: 768px)
   =================================== */
@media (max-width: 768px) {

    /* --- 基础字体大小 --- */
    html {
        font-size: 13px;
    }

    body {
        font-size: 1rem;
    }

    /* --- 标题字体 --- */
    h1 {
        font-size: 1.5rem;
        padding: 8px 0;
    }

    h2 {
        font-size: 1.3rem;
        margin-bottom: 12px;
    }

    h3 {
        font-size: 1.125rem;
    }

    h4 {
        font-size: 1.125rem;
    }

    h5 {
        font-size: 1.125rem;
    }

    /* --- Logo区域 --- */
    .logo-section {
        display: none;
    }

    /* --- 导航栏 --- */
    header .container {
        padding: 0px 15px;
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    header .nav-toggle {
        position: absolute;
        left: 20px;
        width: 28px;
        height: 28px;
        background: none;
        border: none;
        cursor: pointer;
        padding: 0;
        z-index: 1001;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    header .nav-toggle .menu-icon {
        width: 85%;
        height: auto;
        display: block;
        transition: opacity 0.3s ease;
    }

    header .nav-toggle .close-icon {
        width: 85%;
        height: auto;
        display: none;
        transition: opacity 0.3s ease;
    }

    header .nav-toggle.active .menu-icon {
        display: none;
    }

    header .nav-toggle.active .close-icon {
        display: block;
    }

    header .mobile-logo {
        display: block !important;
        margin: 0;
    }

    header .mobile-logo img {
        width: 95px;
        height: auto;
    }

    header nav {
        position: fixed;
        top: 0;
        left: -100%;
        width: 270px;
        height: 100vh;
        background: #fff;
        transition: left 0.3s ease;
        z-index: 1000;
        padding-top: 75px;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    }

    header nav.active {
        left: 0;
    }

    header nav ul {
        flex-direction: column;
        gap: 0;
        align-items: flex-start;
    }

    header nav ul li {
        width: 100%;
        border-bottom: 1px solid #f0f0f0;
    }

    header nav a {
        font-size: 1.125rem;
        padding: 20px 30px;
        display: block;
        width: 100%;
    }

    header nav a:focus,
    header nav a:active,
    header nav a:visited {
        color: #000000 !important;
    }

    header nav a.active {
        color: #E08B37 !important;
    }

    header nav a:hover {
        color: #000000;
    }

    .nav-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
    }

    .nav-overlay.active {
        display: block;
    }

    header .mobile-logo {
        display: block !important;
    }

    header .nav-toggle {
        display: flex !important;
    }

    /* 确保在小屏手机上也显示 */
    header .mobile-logo {
        display: block !important;
    }

    header .nav-toggle {
        display: flex !important;
    }

    /* --- 首屏视频区域 --- */
    .hero {
        height: 360px;
        margin-bottom: 33px;
    }

    .hero-video video {
        object-fit: cover;
        width: 100%;
        height: 100%;
        object-position: center center;
        min-width: 100%;
        min-height: 100%;
    }

    /* --- 装饰线 --- */
    .title-divider {
        gap: 11px;
        margin: 9px auto;
        max-width: 35%;
    }

    .title-divider .circle-icon {
        width: 13px;
        height: 13px;
    }

    .product-intro .announcement-wrapper,
    .collection .announcement-wrapper,
    .details .announcement-wrapper,
    .boutique .announcement-wrapper,
    .service .announcement-wrapper {
        margin-bottom: 30px;
    }

    /* --- 四大产品大图 --- */
    .product-intro .container>img:not([src*="img/jewelry/all jewelry.png"]) {
        width: 120vw !important;
    }

    /* --- 产品介绍区域 --- */
    .product-intro {
        padding: 12px 22px 0;
    }

    .announcement-wrapper {
        padding: 0 17px;
        margin-bottom: 32px;
    }

    .product-intro .container>img {
        margin-bottom: -8px;
    }

    .intro-row {
        flex-direction: column !important;
        gap: 22px;
        margin: 32px auto;
        padding: 0 15px;
    }

    .intro-row .intro-image {
        width: 100%;
        flex: none;
    }

    .intro-row .intro-image img {
        width: 100%;
    }

    .intro-row .intro-content {
        width: 100%;
        padding: 0;
        text-align: left !important;
    }

    .intro-row .r3-meaning {
        text-align: left !important;
        margin: 16px 0;
    }

    .r3-meaning li {
        margin: 4.5px 0;
    }

    .intro-content p {
        margin-bottom: 9px;
        font-size: 0.92rem;
    }

    .intro-content .r3-meaning {
        margin: 16px 0;
    }

    /* --- 产品集合区域 --- */
    .collection {
        padding: 12px 22px 0;
    }

    .collection .announcement-wrapper {
        margin-bottom: 32px;
    }

    .collection-grid {
        grid-template-columns: 1fr;
        gap: 27px;
        padding: 42px 17px;
        background-color: #000000;
    }

    .collection-item {
        display: flex;
        flex-direction: column;
        background-color: transparent;
        transform: none;
    }

    .collection-item::before {
        display: none;
    }

    .collection-item:hover {
        transform: none;
    }

    .collection-item:hover::before {
        opacity: 0;
    }

    .collection-item h4,
    .collection-item h5 {
        position: static;
        transform: none;
        opacity: 1 !important;
        width: 100%;
        text-align: center;
        color: #FFFFFF;
        pointer-events: auto;
    }

    .collection-item h4 {
        font-size: 1.35rem;
        margin-top: 13px;
        padding: 11px 16px;
        line-height: 1.6;
        color: #fff;
    }

    .collection-item h5 {
        font-size: 2.65rem;
        padding: 6px 16px;
        line-height: 1.3;
        color: #E08B37;
    }

    .collection-item:hover h4,
    .collection-item:hover h5 {
        opacity: 1 !important;
    }

    .collection-item img {
        width: 75%;
        height: auto;
        display: block;
        margin: 0 auto;
    }

    /* --- 产品详情区域 --- */
    .details {
        padding: 32px 0 0;
    }

    .details .announcement-wrapper {
        margin-bottom: -5px;
    }

    .product-detail {
        flex-direction: column !important;
        gap: 22px;
        margin-bottom: 47px;
    }

    .product-images {
        width: 100%;
        gap: 9px;
    }

    .product-image-gallery {
        gap: 7px;
    }

    .product-info {
        width: 100%;
        padding: 16px;
        margin-bottom: 40px;
    }

    .product-info h2 {
        margin-bottom: 27px;
        font-size: 1.3rem;
    }

    .product-specs {
        font-size: 1.125rem;
        margin-bottom: 0px;
    }

    .spec-row {
        flex-direction: row;
        gap: 9px;
        margin-bottom: 11px;
        align-items: flex-start;
    }

    .product-specs dt {
        flex: 0 0 auto;
        margin-bottom: 0;
        white-space: nowrap;
    }

    .product-specs dd {
        flex: 1;
        margin: 0;
    }

    /* --- 店铺信息区域 --- */
    .boutique .title-divider:nth-of-type(2) {
        margin-bottom: 30px;
    }

    .boutique {
        padding: 12px 22px 0;
    }

    .store-list {
        margin: 0 auto 17px;
        font-size: 1.15rem;
    }

    .store-list h2 {
        margin-bottom: 16px;
    }

    .store-list ul {
        flex-direction: column;
        gap: 13px;
        align-items: center;
    }

    /* --- 服务区域 --- */
    .service {
        padding: 12px 22px 0;
        margin-bottom: 40px;
    }

    .service-grid {
        grid-template-columns: 1fr;
        gap: 27px;
    }

    .service-item {
        padding: 32px 40px;
    }

    .service-image {
        margin-top: 18px;
        max-width: 100%;
    }

    .service-item h3 {
        font-size: 1.3rem;
    }

    .service-item p {
        font-size: 1.125rem;
        min-height: 0px;

    }

    .service-icon {
        width: 65px;
        height: 65px;
        margin-bottom: 13px;
    }

    .contact-email {
        font-size: 1.125rem;
    }

    /* --- 页脚 --- */
    footer {
        padding: 42px 15px 27px;
    }

    footer .logo img {
        width: 110px;
    }

    .footer-content {
        gap: 27px;
        margin-bottom: 22px;
    }

    .social-icons {
        gap: 27px;
    }

    .social-icon img {
        width: 30px;
    }

    .footer-bottom {
        padding-top: 19px;
    }

    .footer-links ul {
        gap: 17px;
        font-size: 0.9rem;
    }
}

/* ===================================
   16. 响应式设计 - 小屏手机 (max-width: 480px)
   =================================== */
@media (max-width: 480px) {

    /* --- 基础字体大小 --- */
    html {
        font-size: 12px;
    }

    body {
        font-size: 1rem;
    }

    /* --- 标题字体 --- */
    h1 {
        font-size: 1.5rem;
        padding: 8px 0;
    }

    h2 {
        font-size: 1.3rem;
        margin-bottom: 12px;
    }

    h3 {
        font-size: 1.125rem;
    }

    h4 {
        font-size: 1.125rem;
    }

    h5 {
        font-size: 1.125rem;
    }

    /* --- Logo区域 --- */
    .logo-section {
        display: none;
    }

    /* --- 导航栏 --- */
    header .container {
        padding: 0px 15px;
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    header .nav-toggle {
        position: absolute;
        left: 20px;
        width: 28px;
        height: 28px;
        background: none;
        border: none;
        cursor: pointer;
        padding: 0;
        z-index: 1001;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    header .nav-toggle .menu-icon {
        width: 85%;
        height: auto;
        display: block;
        transition: opacity 0.3s ease;
    }

    header .nav-toggle .close-icon {
        width: 85%;
        height: auto;
        display: none;
        transition: opacity 0.3s ease;
    }

    header .nav-toggle.active .menu-icon {
        display: none;
    }

    header .nav-toggle.active .close-icon {
        display: block;
    }

    header .mobile-logo {
        display: block !important;
        margin: 0;
    }

    header .mobile-logo img {
        width: 95px;
        height: auto;
    }

    header nav {
        position: fixed;
        top: 0;
        left: -100%;
        width: 270px;
        height: 100vh;
        background: #fff;
        transition: left 0.3s ease;
        z-index: 1000;
        padding-top: 100px;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    }

    header nav.active {
        left: 0;
    }

    header nav ul {
        flex-direction: column;
        gap: 0;
        align-items: flex-start;
    }

    header nav ul li {
        width: 100%;
        border-bottom: 1px solid #f0f0f0;
    }

    header nav a {
        font-size: 1.125rem;
        padding: 20px 30px;
        display: block;
        width: 100%;
    }

    header nav a:focus,
    header nav a:active,
    header nav a:visited {
        color: #000000 !important;
    }

    header nav a.active {
        color: #E08B37 !important;
    }

    header nav a:hover {
        color: #000000;
    }

    .nav-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
    }

    .nav-overlay.active {
        display: block;
    }

    header .mobile-logo {
        display: block !important;
    }

    header .nav-toggle {
        display: flex !important;
    }

    /* --- 首屏视频区域 --- */
    .hero {
        height: 300px;
        margin-bottom: 30px;
    }

    .hero-video video {
        object-fit: cover;
        width: 100%;
        height: 100%;
        object-position: center center;
        min-width: 100%;
        min-height: 100%;
    }

    /* --- 装饰线 --- */
    .title-divider {
        gap: 10px;
        margin: 8px auto;
        max-width: 90%;
    }

    .title-divider .circle-icon {
        width: 12px;
        height: 12px;
    }

    .product-intro .announcement-wrapper,
    .collection .announcement-wrapper,
    .details .announcement-wrapper,
    .boutique .announcement-wrapper,
    .service .announcement-wrapper {
        margin-bottom: 30px;
    }

    /* --- 四大产品大图 --- */
    .product-intro .container>img:not([src*="img/jewelry/all jewelry.png"]) {
        width: 120vw !important;
    }

    /* --- 产品介绍区域 --- */
    .product-intro {
        padding: 10px 20px 0;
    }

    .announcement-wrapper {
        padding: 0 15px;
        margin-bottom: 30px;
    }

    .product-intro .container>img {
        margin-bottom: -10px;
    }

    .intro-row {
        gap: 20px;
        margin: 30px auto;
        padding: 0 12px;
    }

    .intro-content p {
        margin-bottom: 8px;
        font-size: 0.9rem;
    }

    .intro-content .r3-meaning {
        margin: 15px 0;
    }

    .r3-meaning li {
        margin: 4px 0;
    }

    /* --- 产品集合区域 --- */
    .collection {
        padding: 10px 20px 0;
    }

    .collection .announcement-wrapper {
        margin-bottom: 30px;
    }

    .collection-grid {
        gap: 25px;
        padding: 40px 15px;
        background-color: #000000;
    }

    .collection-item {
        display: flex;
        flex-direction: column;
        background-color: transparent;
        transform: none;
    }

    .collection-item::before {
        display: none;
    }

    .collection-item:hover {
        transform: none;
    }

    .collection-item:hover::before {
        opacity: 0;
    }

    .collection-item h4,
    .collection-item h5 {
        position: static;
        transform: none;
        opacity: 1 !important;
        width: 100%;
        text-align: center;
        color: #FFFFFF;
        pointer-events: auto;
    }

    .collection-item h4 {
        font-size: 1.4rem;
        margin-top: 12px;
        padding: 10px 15px;
        line-height: 1.6;
        color: #fff;
    }

    .collection-item h5 {
        font-size: 2.5rem;
        padding: 5px 15px;
        line-height: 1.3;
        color: #E08B37;
    }

    .collection-item:hover h4,
    .collection-item:hover h5 {
        opacity: 1 !important;
    }

    .collection-item img {
        width: 75%;
        height: auto;
        display: block;
        margin: 0 auto;
    }

    /* --- 产品详情区域 --- */
    .details {
        padding: 30px 0 0;
    }

    .details .announcement-wrapper {
        margin-bottom: -10px;
    }

    .product-detail {
        gap: 20px;
        margin-bottom: 45px;
    }

    .product-images {
        gap: 8px;
    }

    .product-image-gallery {
        gap: 6px;
    }

    .product-info {
        padding: 10px;
        margin-bottom: 40px;
    }

    .product-info h2 {
        margin-bottom: 25px;
        font-size: 1.3rem;
    }

    .product-specs {
        font-size: 1.125rem;
        margin-bottom: 0px;
    }

    .spec-row {
        flex-direction: row;
        gap: 8px;
        margin-bottom: 10px;
        align-items: flex-start;
    }

    .product-specs dt {
        flex: 0 0 auto;
        margin-bottom: 0;
        white-space: nowrap;
    }

    .product-specs dd {
        flex: 1;
        margin: 0;
    }

    /* --- 店铺信息区域 --- */
    .boutique .title-divider:nth-of-type(2) {
        margin-bottom: 30px;
    }

    .boutique {
        padding: 10px 20px 0;
    }

    .store-list {
        margin: 0 auto 15px;
        font-size: 1.125rem;
    }

    .store-list h2 {
        margin-bottom: 15px;
    }

    .store-list ul {
        gap: 12px;
    }

    /* --- 服务区域 --- */
    .service {
        padding: 30px 20px 0;
        margin-bottom: 40px;
    }

    .service-grid {
        gap: 0px;
    }

    .service-item {
        padding: 20px 30px;
    }

    .service-image {
        margin-top: 15px;
        max-width: 100%;
    }

    .service-item h3 {
        font-size: 1.3rem;
    }

    .service-item p {
        font-size: 1rem;
        min-height: 0px;

    }

    .service-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 12px;
    }

    .contact-email {
        font-size: 0.9rem;
    }

    /* --- 页脚 --- */
    footer {
        padding: 40px 12px 25px;
    }

    footer .logo img {
        width: 80px;
    }

    .footer-content {
        gap: 25px;
        margin-bottom: 20px;
    }

    .social-icons {
        gap: 25px;
    }

    .social-icon img {
        width: 25px;
    }

    .footer-bottom {
        padding-top: 18px;
    }

    .footer-links ul {
        gap: 15px;
        font-size: 1.125rem;
    }
}