/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #2c2c2c;
    --color-secondary: #8b7355;
    --color-accent: #c9a87c;
    --color-bg: #faf9f7;
    --color-bg-white: #ffffff;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-border: #e8e6e3;
    --color-hover: #c9a87c;
    --color-success: #6b8e6b;
    --color-error: #c87a7a;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang TC', 'Microsoft JhengHei', sans-serif;
    --container-max: 1280px;
    --header-height: 100px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

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

a:hover {
    color: var(--color-hover);
}

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

ul, ol {
    list-style: none;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    outline: none;
    border: none;
}

button {
    cursor: pointer;
    background: none;
}

/* ===== Container ===== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 30px;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 32px;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.5px;
    border-radius: 2px;
    transition: var(--transition);
    cursor: pointer;
    text-align: center;
    gap: 8px;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--color-secondary);
    color: #fff;
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.btn-outline:hover {
    background-color: var(--color-primary);
    color: #fff;
}

.btn-light {
    background-color: #fff;
    color: var(--color-primary);
}

.btn-light:hover {
    background-color: var(--color-bg);
}

.btn-full {
    width: 100%;
}

.btn-lg {
    padding: 15px 40px;
    font-size: 15px;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

/* ===== Header ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--color-bg-white);
    border-bottom: 1px solid var(--color-border);
    min-height: 85px;
    height: var(--header-height);
    display: flex;
    align-items: center;
}

.header-inner {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 0 30px;
}

.logo {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    height: 130px;
    background-size: auto 130px;
    background-repeat: no-repeat;
    background-position: center;
    background-image: url('../images/logo/black.png');
    transition: background-image 0.3s ease;
}

.logo:hover {
    background-image: url('../images/logo/fff.png');
}

.main-nav {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 50px;
}

.main-nav > ul {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: nowrap;
}

.main-nav > ul > li {
    position: relative;
}

.main-nav > ul > li > a {
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 1px;
    padding: 40px 0;
    display: block;
    white-space: nowrap;
}

.main-nav > ul > li:hover > a {
    color: var(--color-secondary);
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 200px;
    background-color: #fff;
    border: 1px solid var(--color-border);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    padding: 15px 0;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.main-nav > ul > li:hover .dropdown {
    opacity: 1;
    visibility: visible;
}

.dropdown li a {
    display: block;
    padding: 10px 25px;
    font-size: 14px;
}

.dropdown li a:hover {
    background-color: var(--color-bg);
    color: var(--color-secondary);
}

.header-right {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.search-form {
    display: flex;
    align-items: center;
    background-color: var(--color-bg);
    border-radius: 4px;
    padding: 5px;
    overflow: hidden;
    width: 180px;
}

.search-input {
    flex: 1;
    padding: 8px 12px;
    background: transparent;
    font-size: 13px;
    color: var(--color-text);
}

.search-input::placeholder {
    color: #999;
}

.search-btn {
    padding: 8px 12px;
    color: var(--color-text-light);
    cursor: pointer;
    transition: var(--transition);
}

.search-btn:hover {
    color: var(--color-secondary);
}

.header-icon {
    position: relative;
    font-size: 22px;
    color: var(--color-primary);
    cursor: pointer;
    transition: var(--transition);
}

.header-icon:hover {
    color: var(--color-secondary);
}

.cart-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 18px;
    height: 18px;
    background-color: var(--color-secondary);
    color: #fff;
    font-size: 11px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
}

.mobile-menu-btn {
    display: none;
    font-size: 24px;
    color: var(--color-primary);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    height: 500px;
    background: linear-gradient(135deg, #f5f0e8 0%, #e8e0d5 100%);
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-content {
    max-width: 550px;
    padding: 60px 0;
}

.hero-tag {
    font-size: 13px;
    letter-spacing: 3px;
    color: var(--color-secondary);
    margin-bottom: 20px;
    text-transform: uppercase;
}

.hero-title {
    font-size: 42px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-primary);
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.hero-subtitle {
    font-size: 16px;
    color: var(--color-text-light);
    margin-bottom: 35px;
    line-height: 1.8;
}

.hero-image {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    width: 500px;
    height: auto;
    opacity: 0.9;
}

/* ===== Section Common ===== */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: 32px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 15px;
    letter-spacing: 1px;
}

.section-subtitle {
    font-size: 15px;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Series Grid ===== */
.series-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.series-card {
    position: relative;
    overflow: hidden;
    border-radius: 4px;
    cursor: pointer;
    height: 320px;
}

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

.series-card:hover img {
    transform: scale(1.08);
}

.series-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.5) 0%, transparent 60%);
    display: flex;
    align-items: flex-end;
    padding: 25px;
}

.series-name {
    color: #fff;
    font-size: 22px;
    font-weight: 500;
    letter-spacing: 1px;
}

/* ===== Product Grid ===== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 30px;
}

.product-card {
    background-color: #fff;
    border-radius: 4px;
    overflow: hidden;
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
}

.product-image {
    display: block;
    position: relative;
    overflow: hidden;
    aspect-ratio: 1;
    background-color: var(--color-bg);
}

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

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-tags {
    position: absolute;
    top: 12px;
    left: 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.product-tag {
    padding: 4px 10px;
    font-size: 11px;
    color: #fff;
    border-radius: 2px;
    background-color: var(--color-secondary);
    letter-spacing: 0.5px;
}

.product-info {
    padding: 20px;
}

.product-name {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 42px;
}

.product-sku {
    font-size: 12px;
    color: #999;
    margin-bottom: 10px;
}

.product-price {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-secondary);
}

.product-price small {
    font-size: 13px;
    font-weight: 400;
    color: var(--color-text-light);
}

/* ===== Footer ===== */
.footer {
    background-color: var(--color-primary);
    color: #c0c0c0;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 50px;
    margin-bottom: 40px;
}

.footer-title {
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

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

.footer-links a {
    color: #c0c0c0;
    font-size: 14px;
}

.footer-links a:hover {
    color: var(--color-accent);
}

.footer-about {
    font-size: 14px;
    line-height: 1.8;
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 15px;
}

.social-links a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #c0c0c0;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--color-accent);
    color: #fff;
}

.footer-contact p {
    font-size: 14px;
    margin-bottom: 10px;
    display: flex;
    gap: 10px;
    align-items: flex-start;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 25px;
    text-align: center;
    font-size: 13px;
    color: #888;
}

/* ===== Page Header ===== */
.page-header {
    background: linear-gradient(135deg, #f5f0e8 0%, #e8e0d5 100%);
    padding: 50px 0;
    text-align: center;
}

.page-title {
    font-size: 32px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.breadcrumb {
    font-size: 14px;
    color: var(--color-text-light);
}

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

.breadcrumb-sep {
    margin: 0 10px;
}

/* ===== Sidebar Layout ===== */
.layout-sidebar {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 40px;
    margin: 50px 0;
}

.sidebar-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--color-secondary);
}

.sidebar-menu li {
    border-bottom: 1px solid var(--color-border);
}

.sidebar-menu a {
    display: block;
    padding: 12px 0;
    font-size: 14px;
    transition: var(--transition);
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    color: var(--color-secondary);
    padding-left: 10px;
}

/* ===== Product Detail ===== */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin: 50px 0;
}

.product-gallery {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.main-image-box {
    position: relative;
}

.main-image {
    aspect-ratio: 1;
    background-color: var(--color-bg);
    border-radius: 4px;
    overflow: hidden;
    cursor: crosshair;
}

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

.zoom-lens {
    position: absolute;
    border: 1px solid #ccc;
    background: rgba(255, 255, 255, 0.35);
    pointer-events: none;
    display: none;
    z-index: 10;
}

.zoom-result {
    position: absolute;
    left: calc(100% + 15px);
    top: 0;
    width: 100%;
    aspect-ratio: 1;
    background-repeat: no-repeat;
    background-color: #fff;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    display: none;
    z-index: 100;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
    pointer-events: none;
}

.thumb-images {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.thumb-images img {
    aspect-ratio: 1;
    object-fit: cover;
    cursor: pointer;
    border-radius: 4px;
    border: 2px solid transparent;
    transition: var(--transition);
}

.thumb-images img:hover,
.thumb-images img.active {
    border-color: var(--color-secondary);
}

.product-detail-info h1 {
    font-size: 26px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.product-detail-sku {
    color: #999;
    font-size: 13px;
    margin-bottom: 20px;
}

.product-detail-price {
    font-size: 32px;
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: 25px;
}

.product-detail-desc {
    color: var(--color-text-light);
    margin-bottom: 30px;
    line-height: 1.8;
    overflow: hidden;
}

.product-option {
    margin-bottom: 25px;
}

.option-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.option-label span {
    color: var(--color-text-light);
    font-weight: 400;
    font-size: 13px;
    margin-left: 8px;
}

.option-items {
    display: flex;
    flex-wrap: wrap;
    gap: 26px;
}

.option-item {
    padding: 10px 18px;
    border: 1px solid var(--color-border);
    border-radius: 2px;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    background-color: #fff;
}

.option-item:hover,
.option-item.active {
    border-color: var(--color-secondary);
    color: var(--color-secondary);
}

.color-option {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    padding: 0;
    border: 2px solid transparent;
    position: relative;
}

.color-option.active {
    border-color: var(--color-secondary);
}

.color-option::after {
    content: attr(data-name);
    position: absolute;
    bottom: -22px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    color: var(--color-text-light);
    white-space: nowrap;
}

.quantity-selector {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 30px;
}

.quantity-input {
    display: flex;
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: 2px;
    overflow: hidden;
    width: fit-content;
}

.quantity-input button {
    width: 40px;
    height: 42px;
    font-size: 18px;
    color: var(--color-text);
    transition: var(--transition);
}

.quantity-input button:hover {
    background-color: var(--color-bg);
}

.quantity-input input {
    width: 60px;
    height: 42px;
    text-align: center;
    border-left: 1px solid var(--color-border);
    border-right: 1px solid var(--color-border);
    font-size: 15px;
}

.action-buttons {
    display: flex;
    gap: 15px;
}

.product-tabs {
    margin-top: 60px;
    border-top: 1px solid var(--color-border);
}

.tab-nav {
    display: flex;
    gap: 40px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 30px;
}

.tab-nav button {
    padding: 18px 0;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-light);
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: var(--transition);
}

.tab-nav button.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-secondary);
}

.tab-content {
    padding: 20px 0;
    line-height: 1.8;
    color: var(--color-text-light);
}

/* ===== Form Styles ===== */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--color-border);
    border-radius: 2px;
    font-size: 14px;
    transition: var(--transition);
    background-color: #fff;
}

.form-input:focus {
    border-color: var(--color-secondary);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
    padding: 12px 15px;
}

.form-select {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--color-border);
    border-radius: 2px;
    font-size: 14px;
    background-color: #fff;
    cursor: pointer;
}

.form-error {
    color: var(--color-error);
    font-size: 13px;
    margin-top: 5px;
}

/* ===== Auth Pages ===== */
.auth-wrapper {
    min-height: calc(100vh - var(--header-height) - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background-color: #fff;
    padding: 45px 40px;
    border-radius: 4px;
    box-shadow: 0 5px 30px rgba(0,0,0,0.06);
}

.auth-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: 10px;
}

.auth-subtitle {
    text-align: center;
    color: var(--color-text-light);
    font-size: 14px;
    margin-bottom: 30px;
}

.auth-footer {
    text-align: center;
    margin-top: 25px;
    font-size: 14px;
    color: var(--color-text-light);
}

.auth-footer a {
    color: var(--color-secondary);
    font-weight: 500;
}

/* ===== Account Page ===== */
.account-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 40px;
    margin: 50px 0;
}

.account-sidebar {
    background-color: #fff;
    border-radius: 4px;
    padding: 25px 20px;
    height: fit-content;
}

.account-user {
    text-align: center;
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--color-border);
}

.account-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--color-secondary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 12px;
}

.account-email {
    font-size: 14px;
    color: var(--color-primary);
    font-weight: 500;
    word-break: break-all;
}

.account-menu li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 15px;
    font-size: 14px;
    border-radius: 4px;
    transition: var(--transition);
}

.account-menu li a:hover,
.account-menu li a.active {
    background-color: var(--color-bg);
    color: var(--color-secondary);
}

.account-content {
    background-color: #fff;
    border-radius: 4px;
    padding: 35px;
}

.account-content h2 {
    font-size: 22px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 25px;
}

/* ===== Order List ===== */
.order-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.order-card {
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow: hidden;
}

.order-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 25px;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}

.order-number {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary);
}

.order-date {
    font-size: 13px;
    color: var(--color-text-light);
    margin-left: 20px;
}

.order-status {
    font-size: 13px;
    padding: 5px 12px;
    border-radius: 2px;
    font-weight: 500;
}

.status-pending {
    background-color: #fff4e5;
    color: #d48806;
}

.status-processing {
    background-color: #e6f4ff;
    color: #1677ff;
}

.status-completed {
    background-color: #f0f7f0;
    color: #52c41a;
}

.status-cancelled {
    background-color: #fff1f0;
    color: #ff4d4f;
}

.order-body {
    padding: 20px 25px;
}

.order-items {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 15px;
}

.order-item {
    display: flex;
    gap: 15px;
}

.order-item-img {
    width: 80px;
    height: 80px;
    background-color: var(--color-bg);
    border-radius: 4px;
    overflow: hidden;
    flex-shrink: 0;
}

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

.order-item-info {
    flex: 1;
}

.order-item-name {
    font-size: 14px;
    color: var(--color-primary);
    margin-bottom: 5px;
}

.order-item-spec {
    font-size: 12px;
    color: #999;
    margin-bottom: 5px;
}

.order-item-price {
    font-size: 14px;
    color: var(--color-secondary);
    font-weight: 500;
}

.order-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid var(--color-border);
}

.order-total {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary);
}

.order-total span {
    color: var(--color-secondary);
    font-size: 20px;
    margin-left: 10px;
}

/* ===== Cart Page ===== */
.cart-page {
    margin: 50px 0;
}

.cart-header {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 0.5fr;
    padding: 15px 25px;
    background-color: var(--color-bg);
    border-radius: 4px 4px 0 0;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary);
}

.cart-item {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 0.5fr;
    align-items: center;
    justify-items: center;
    padding: 25px;
    border-bottom: 1px solid var(--color-border);
    background-color: #fff;
}

.cart-product {
    display: flex;
    gap: 20px;
    align-items: center;
    justify-self: stretch;
}

.cart-product-img {
    width: 100px;
    height: 100px;
    background-color: var(--color-bg);
    border-radius: 4px;
    overflow: hidden;
    flex-shrink: 0;
}

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

.cart-product-info h4 {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.cart-product-spec {
    font-size: 12px;
    color: #999;
}

.cart-price {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-primary);
}

.cart-remove {
    font-size: 20px;
    color: #ccc;
    cursor: pointer;
    transition: var(--transition);
}

.cart-remove:hover {
    color: var(--color-error);
}

.cart-summary-wrapper {
    display: flex;
    justify-content: flex-end;
    margin-top: 30px;
}

.cart-summary {
    width: 350px;
    background-color: #fff;
    padding: 30px;
    border-radius: 4px;
    border: 1px solid var(--color-border);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    font-size: 14px;
    color: var(--color-text-light);
}

.summary-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    margin-top: 20px;
    border-top: 1px solid var(--color-border);
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary);
}

.summary-total .total-price {
    font-size: 24px;
    color: var(--color-secondary);
}

.cart-empty {
    text-align: center;
    padding: 80px 20px;
    background-color: #fff;
    border-radius: 4px;
}

.cart-empty-icon {
    font-size: 64px;
    color: #ddd;
    margin-bottom: 20px;
}

.cart-empty p {
    color: var(--color-text-light);
    margin-bottom: 25px;
}

/* ===== Checkout Page ===== */
.checkout-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 50px;
    margin: 50px 0;
}

.checkout-section {
    background-color: #fff;
    padding: 30px;
    border-radius: 4px;
    margin-bottom: 25px;
}

.checkout-section h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--color-border);
}

.checkout-summary {
    background-color: #fff;
    padding: 30px;
    border-radius: 4px;
    position: sticky;
    top: 100px;
    height: fit-content;
}

.checkout-summary h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.checkout-items {
    max-height: 250px;
    overflow-y: auto;
    margin-bottom: 20px;
}

.checkout-item {
    display: flex;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
}

.checkout-item-img {
    width: 55px;
    height: 55px;
    background-color: var(--color-bg);
    border-radius: 4px;
    overflow: hidden;
    flex-shrink: 0;
    position: relative;
}

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

.checkout-item-qty {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 20px;
    height: 20px;
    background-color: var(--color-text-light);
    color: #fff;
    font-size: 11px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.checkout-item-info {
    flex: 1;
}

.checkout-item-name {
    font-size: 13px;
    color: var(--color-primary);
    margin-bottom: 4px;
    line-height: 1.4;
}

.checkout-item-price {
    font-size: 13px;
    color: var(--color-secondary);
    font-weight: 500;
}

/* ===== Bank Info Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 20px;
}

.modal {
    background-color: #fff;
    border-radius: 6px;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-primary);
}

.modal-close {
    font-size: 24px;
    color: #999;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--color-text);
}

.modal-body {
    padding: 30px;
}

.bank-account-card {
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 20px;
    margin-bottom: 15px;
}

.bank-account-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 15px;
}

.bank-info-row {
    display: flex;
    margin-bottom: 8px;
    font-size: 14px;
}

.bank-info-label {
    color: var(--color-text-light);
    width: 100px;
    flex-shrink: 0;
}

.bank-info-value {
    color: var(--color-primary);
    font-weight: 500;
}

/* ===== Content Page ===== */
.content-page {
    max-width: 900px;
    margin: 50px auto;
    background-color: #fff;
    padding: 50px 60px;
    border-radius: 4px;
    line-height: 1.8;
}

.content-page h1 {
    font-size: 28px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 30px;
    text-align: center;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--color-secondary);
}

.content-page h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-primary);
    margin: 30px 0 15px;
}

.content-page h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-primary);
    margin: 25px 0 12px;
}

.content-page p {
    color: var(--color-text-light);
    margin-bottom: 15px;
}

.content-page ul,
.content-page ol {
    margin-bottom: 15px;
    padding-left: 20px;
}

.content-page ul li {
    list-style: disc;
    color: var(--color-text-light);
    margin-bottom: 8px;
}

.content-page ol li {
    list-style: decimal;
    color: var(--color-text-light);
    margin-bottom: 8px;
}

/* ===== Alert Messages ===== */
.messages {
    position: fixed;
    top: 120px;
    right: 30px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.message {
    padding: 15px 25px;
    border-radius: 4px;
    font-size: 14px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    animation: slideIn 0.3s ease;
}

.message-success {
    background-color: #f0f7f0;
    color: #52c41a;
    border-left: 4px solid #52c41a;
}

.message-error {
    background-color: #fff1f0;
    color: #ff4d4f;
    border-left: 4px solid #ff4d4f;
}

.message-info {
    background-color: #e6f4ff;
    color: #1677ff;
    border-left: 4px solid #1677ff;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }

    .product-detail {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .checkout-layout {
        grid-template-columns: 1fr;
    }

    .checkout-summary {
        position: static;
        order: -1;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }

    .container {
        padding: 0 20px;
    }

    .logo {
        text-align: left;
    }

    .header-right {
        justify-content: flex-end;
    }

    .main-nav {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .zoom-lens, .zoom-result {
        display: none !important;
    }

    .hero {
        height: 400px;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 14px;
    }

    .section {
        padding: 50px 0;
    }

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

    .series-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .series-card {
        height: 200px;
    }

    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .layout-sidebar {
        grid-template-columns: 1fr;
    }

    .account-layout {
        grid-template-columns: 1fr;
    }

    .cart-header {
        display: none;
    }

    .cart-item {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .content-page {
        padding: 30px 20px;
    }

    .content-page h1 {
        font-size: 22px;
    }

    .content-page > div[style*="grid-template-columns: 1fr 1fr"] {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .search-form {
        display: none;
    }

    .header-right {
        gap: 15px;
    }
}