/* ============================================
   陶趣居 China - 品牌网站副本
   完整样式表
   ============================================ */

/* --- CSS Variables --- */
:root {
    --dg-black: #1a1a1a;
    --dg-dark: #2d2d2d;
    --dg-gray: #666;
    --dg-light-gray: #999;
    --dg-lighter-gray: #ccc;
    --dg-lightest: #f5f5f5;
    --dg-white: #fff;
    --dg-gold: #c8a96e;
    --dg-gold-light: #d4b98a;
    --dg-red: #c8102e;
    --dg-bg: #f8f6f1;
    
    --font-primary: 'Optima', 'Palatino', 'Georgia', serif;
    --font-secondary: 'Arial', 'Helvetica', 'Microsoft YaHei', sans-serif;
    
    --header-h: 120px;
    --header-top-h: 48px;
    --header-bottom-h: 72px;
    --topbar-h: 36px;
    
    --transition: all 0.3s ease;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-secondary);
    color: var(--dg-dark);
    background: var(--dg-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
    list-style: none;
}

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
}

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

/* --- Container --- */
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 40px;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 400;
    letter-spacing: 0.05em;
}

.section-title {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.section-subtitle {
    text-align: center;
    color: var(--dg-gray);
    font-size: 0.9rem;
    margin-bottom: 2.5rem;
    letter-spacing: 0.15em;
}

/* ============================================
   TOP BAR (Announcement Bar)
   ============================================ */
.topbar {
    background: var(--dg-black);
    color: var(--dg-white);
    text-align: center;
    font-size: 0.75rem;
    padding: 8px 16px;
    letter-spacing: 0.05em;
    position: relative;
    z-index: 1001;
}

.topbar a {
    color: var(--dg-gold);
    text-decoration: underline;
}

.topbar-close {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--dg-white);
    font-size: 0.8rem;
    cursor: pointer;
}

/* ============================================
   HEADER
   ============================================ */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--dg-white);
    border-bottom: 1px solid #eee;
}

.header-inner {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Logo section */
.header-logo {
    text-align: center;
    padding: 16px 0 12px;
}

.header-logo a {
    display: inline-block;
}

.header-logo svg {
    height: 24px;
    width: auto;
}

/* Navigation */
.header-nav {
    display: flex;
    justify-content: center;
    gap: 0;
    padding-bottom: 12px;
}

.header-nav-item {
    position: relative;
    padding: 0 20px;
}

.header-nav-link {
    display: block;
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--dg-dark);
    padding: 4px 0;
    position: relative;
}

.header-nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--dg-gold);
    transition: var(--transition);
}

.header-nav-item:hover .header-nav-link::after {
    width: 100%;
}

.header-nav-item:hover .header-nav-link {
    color: var(--dg-gold);
}

/* Dropdown menu */
.header-dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    background: var(--dg-white);
    min-width: 200px;
    padding: 16px 24px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow);
    border: 1px solid #eee;
    z-index: 100;
}

.header-nav-item:hover .header-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.header-dropdown a {
    display: block;
    padding: 6px 0;
    font-size: 0.8rem;
    color: var(--dg-gray);
    white-space: nowrap;
}

.header-dropdown a:hover {
    color: var(--dg-gold);
    padding-left: 4px;
}

/* Header Icons (right side) */
.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    position: absolute;
    right: 40px;
    top: 16px;
}

.header-action-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
    color: var(--dg-dark);
    cursor: pointer;
    padding: 4px 8px;
    transition: var(--transition);
}

.header-action-btn:hover {
    color: var(--dg-gold);
}

.header-action-btn svg {
    width: 18px;
    height: 18px;
}

/* Sub-nav (secondary menu bar) */
.sub-nav {
    background: var(--dg-lightest);
    padding: 8px 0;
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
}

.sub-nav-inner {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: center;
    gap: 24px;
}

.sub-nav a {
    font-size: 0.78rem;
    color: var(--dg-gray);
    letter-spacing: 0.05em;
}

.sub-nav a:hover,
.sub-nav a.active {
    color: var(--dg-gold);
}

/* ============================================
   MOBILE HEADER
   ============================================ */
.mobile-header {
    display: none;
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--dg-white);
    padding: 10px;
    border-bottom: 1px solid #eee;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    box-sizing: border-box;
}

.mobile-menu-btn {
    font-size: 1.05rem;
    color: var(--dg-dark);
    width: 26px;
    height: 26px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
}

.mobile-logo {
    min-width: 0;
    flex: 1 1 auto;
    text-align: center;
}

.mobile-logo a {
    display: inline-flex;
    max-width: 100%;
}

.mobile-logo svg {
    height: 18px;
    width: auto;
    max-width: 132px;
}

.mobile-icons {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 0 0 auto;
}

.mobile-icons a {
    color: var(--dg-dark);
    font-size: 1.05rem;
    min-width: 21px;
    width: 21px;
    height: 21px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.mobile-icons .mobile-logout {
    color: #c8102e;
}

.mobile-menu-account a {
    color: #333;
}

@media (max-width: 400px) {
    .mobile-header {
        padding: 9px 7px;
    }
    .mobile-menu-btn {
        width: 24px;
        height: 24px;
        font-size: 1rem;
    }
    .mobile-logo svg {
        height: 16px;
        max-width: 112px;
    }
    .mobile-icons {
        gap: 4px;
    }
    .mobile-icons a {
        min-width: 20px;
        width: 20px;
        height: 20px;
        font-size: 1rem;
    }
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 280px;
    height: 100vh;
    background: var(--dg-white);
    z-index: 2000;
    overflow-y: auto;
    transition: var(--transition);
    padding: 20px;
    box-shadow: 2px 0 20px rgba(0,0,0,0.1);
}

.mobile-menu.open {
    left: 0;
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0,0,0,0.4);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.mobile-menu-overlay.open {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-close {
    text-align: right;
    font-size: 1.2rem;
    padding: 4px;
    margin-bottom: 20px;
    cursor: pointer;
}

.mobile-menu-item {
    border-bottom: 1px solid #eee;
}

.mobile-menu-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.mobile-submenu {
    display: none;
    padding-left: 16px;
    padding-bottom: 12px;
}

.mobile-submenu.open {
    display: block;
}

.mobile-submenu a {
    display: block;
    padding: 8px 0;
    font-size: 0.84rem;
    color: var(--dg-gray);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    width: 100%;
    height: 80vh;
    min-height: 500px;
    max-height: 900px;
    overflow: hidden;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.hero-slide.active {
    opacity: 1;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.4) 100%);
}

.hero-content {
    position: absolute;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--dg-white);
    z-index: 2;
    max-width: 600px;
    padding: 0 20px;
}

.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 12px;
    letter-spacing: 0.08em;
    line-height: 1.2;
}

.hero-content p {
    font-size: 0.9rem;
    margin-bottom: 24px;
    opacity: 0.9;
    line-height: 1.5;
}

.hero-btn {
    display: inline-block;
    padding: 12px 36px;
    border: 1px solid var(--dg-white);
    color: var(--dg-white);
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    transition: var(--transition);
}

.hero-btn:hover {
    background: var(--dg-white);
    color: var(--dg-dark);
}

/* Hero Arrows */
.hero-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(4px);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dg-white);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
}

.hero:hover .hero-arrow {
    opacity: 1;
}

.hero-arrow:hover {
    background: rgba(255,255,255,0.3);
}

.hero-arrow.prev { left: 24px; }
.hero-arrow.next { right: 24px; }

/* Hero Dots */
.hero-dots {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 3;
}

.hero-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: var(--transition);
}

.hero-dot.active {
    background: var(--dg-white);
    width: 24px;
    border-radius: 4px;
}

/* ============================================
   SECTION COMMON
   ============================================ */
.section-padding {
    padding: 60px 0;
}

.section-padding-sm {
    padding: 40px 0;
}

.section-dark {
    background: var(--dg-black);
    color: var(--dg-white);
}

.section-light {
    background: var(--dg-bg);
}

/* ============================================
   PRODUCT GRID
   ============================================ */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-card {
    position: relative;
    cursor: pointer;
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-2px);
}

.product-card-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 3/4;
    background: var(--dg-lightest);
}

.product-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.product-card:hover .product-card-image img {
    transform: scale(1.03);
}

.product-card-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--dg-red);
    color: var(--dg-white);
    font-size: 0.7rem;
    padding: 3px 8px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.product-card-actions {
    position: absolute;
    bottom: 12px;
    left: 12px;
    right: 12px;
    display: flex;
    gap: 8px;
    opacity: 0;
    transform: translateY(10px);
    transition: var(--transition);
}

.product-card:hover .product-card-actions {
    opacity: 1;
    transform: translateY(0);
}

.product-card-action {
    flex: 1;
    padding: 10px;
    background: rgba(255,255,255,0.95);
    color: var(--dg-dark);
    font-size: 0.75rem;
    text-align: center;
    letter-spacing: 0.05em;
    transition: var(--transition);
}

.product-card-action:hover {
    background: var(--dg-black);
    color: var(--dg-white);
}

.product-card-wishlist {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dg-dark);
    font-size: 0.9rem;
    transition: var(--transition);
    opacity: 0;
}

.product-card:hover .product-card-wishlist {
    opacity: 1;
}

.product-card-wishlist:hover {
    color: var(--dg-red);
}

.product-card-info {
    padding: 12px 0;
}

.product-card-name {
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--dg-dark);
    margin-bottom: 4px;
    line-height: 1.3;
}

.product-card-price {
    font-size: 0.85rem;
    color: var(--dg-gray);
    font-weight: 400;
}

/* Product Grid 2, 3, 5 columns */
.product-grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

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

.product-grid-5 {
    grid-template-columns: repeat(5, 1fr);
}

.featured-group + .featured-group {
    margin-top: 52px;
}

.featured-group-heading {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 20px;
}

.featured-group-heading::after {
    content: "";
    flex: 1;
    height: 1px;
    background: #e4e0d9;
}

.featured-group-title {
    flex: 0 0 auto;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 400;
    color: var(--dg-dark);
    letter-spacing: 0.12em;
}

.featured-product-grid {
    grid-template-columns: repeat(4, 1fr);
}

.featured-empty {
    color: var(--dg-light-gray);
    text-align: center;
}

/* ============================================
   CAMPAIGN / BANNER SECTION
   ============================================ */
.campaign-section {
    position: relative;
    height: 60vh;
    min-height: 400px;
    overflow: hidden;
}

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

.campaign-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(0,0,0,0.5) 0%, transparent 60%);
}

.campaign-content {
    position: absolute;
    top: 50%;
    left: 60px;
    transform: translateY(-50%);
    max-width: 420px;
    color: var(--dg-white);
    z-index: 2;
}

.campaign-content h2 {
    font-size: 2rem;
    margin-bottom: 12px;
    letter-spacing: 0.08em;
}

.campaign-content p {
    font-size: 0.9rem;
    margin-bottom: 20px;
    opacity: 0.9;
    line-height: 1.6;
}

.campaign-content.right {
    left: auto;
    right: 60px;
    text-align: right;
}

/* ============================================
   CATEGORY TILES
   ============================================ */
.category-tiles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
}

.category-tile {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    cursor: pointer;
}

.category-tile img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.category-tile:hover img {
    transform: scale(1.05);
}

.category-tile-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-tile-title {
    color: var(--dg-white);
    font-size: 1.4rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-family: var(--font-primary);
}

/* ============================================
   BRAND STORY
   ============================================ */
.brand-story {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 500px;
}

.brand-story-image {
    height: 100%;
    min-height: 400px;
}

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

.brand-story-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 60px 48px;
    background: var(--dg-bg);
}

.brand-story-content h2 {
    font-size: 1.75rem;
    margin-bottom: 16px;
    letter-spacing: 0.08em;
}

.brand-story-content p {
    color: var(--dg-gray);
    font-size: 0.88rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

/* ============================================
   NEWSLETTER
   ============================================ */
.newsletter {
    text-align: center;
    padding: 60px 20px;
    background: var(--dg-bg);
}

.newsletter h2 {
    font-size: 1.4rem;
    margin-bottom: 12px;
}

.newsletter p {
    color: var(--dg-gray);
    font-size: 0.85rem;
    margin-bottom: 24px;
}

.newsletter-form {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
    gap: 0;
}

.newsletter-form input {
    flex: 1;
    padding: 14px 18px;
    border: 1px solid var(--dg-lighter-gray);
    font-size: 0.85rem;
    color: var(--dg-dark);
}

.newsletter-form input::placeholder {
    color: var(--dg-light-gray);
}

.newsletter-form button {
    padding: 14px 28px;
    background: var(--dg-black);
    color: var(--dg-white);
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: var(--transition);
}

.newsletter-form button:hover {
    background: var(--dg-gold);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--dg-black);
    color: var(--dg-white);
    padding: 60px 0 0;
}

.footer-inner {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-col h3 {
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    margin-bottom: 16px;
    color: var(--dg-white);
    text-transform: uppercase;
}

.footer-col a {
    display: block;
    padding: 5px 0;
    font-size: 0.8rem;
    color: var(--dg-light-gray);
    letter-spacing: 0.05em;
}

.footer-col a:hover {
    color: var(--dg-gold);
}

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

.footer-social a {
    width: 36px;
    height: 36px;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dg-white);
    font-size: 0.85rem;
    transition: var(--transition);
    padding: 0;
}

.footer-social a:hover {
    border-color: var(--dg-gold);
    color: var(--dg-gold);
    background: transparent;
}

.footer-contact {
    font-size: 0.8rem;
    color: var(--dg-light-gray);
    line-height: 1.8;
}

.footer-contact strong {
    color: var(--dg-white);
    font-weight: 400;
}

.footer-bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 0.72rem;
    color: var(--dg-light-gray);
    letter-spacing: 0.05em;
}

.footer-bottom a {
    color: var(--dg-light-gray);
}

.footer-bottom a:hover {
    color: var(--dg-gold);
}

.footer-bottom-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 8px;
}

.footer-bottom-links a {
    color: var(--dg-light-gray);
    font-size: 0.72rem;
}

/* ============================================
   BREADCRUMB
   ============================================ */
.breadcrumb {
    padding: 16px 0;
    font-size: 0.78rem;
    color: var(--dg-light-gray);
}

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

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

.breadcrumb span {
    margin: 0 6px;
}

/* ============================================
   PAGE TITLE
   ============================================ */
.page-header {
    text-align: center;
    padding: 32px 0 40px;
}

.page-header h1 {
    font-size: 2rem;
    letter-spacing: 0.12em;
    margin-bottom: 8px;
}

.page-header p {
    color: var(--dg-gray);
    font-size: 0.88rem;
}

/* ============================================
   FILTER BAR
   ============================================ */
.filter-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
    border-bottom: 1px solid #eee;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.filter-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.filter-label {
    font-size: 0.78rem;
    color: var(--dg-gray);
    letter-spacing: 0.05em;
}

.filter-select {
    padding: 8px 12px;
    border: 1px solid var(--dg-lighter-gray);
    font-size: 0.8rem;
    color: var(--dg-dark);
    background: var(--dg-white);
    cursor: pointer;
}

.filter-select:focus {
    border-color: var(--dg-gold);
}

.filter-count {
    font-size: 0.78rem;
    color: var(--dg-light-gray);
}

/* ============================================
   PRODUCT DETAIL
   ============================================ */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    padding: 40px 0;
}

.product-detail-gallery {
    position: relative;
}

.product-detail-main-image {
    aspect-ratio: 3/4;
    background: var(--dg-lightest);
    overflow: hidden;
}

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

.product-detail-thumbs {
    display: flex;
    gap: 8px;
    margin-top: 12px;
}

.product-detail-thumb {
    width: 72px;
    height: 96px;
    border: 1px solid #eee;
    cursor: pointer;
    overflow: hidden;
    transition: var(--transition);
}

.product-detail-thumb.active,
.product-detail-thumb:hover {
    border-color: var(--dg-gold);
}

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

.product-detail-info {
    padding-top: 20px;
}

.product-detail-brand {
    font-size: 0.75rem;
    color: var(--dg-light-gray);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.product-detail-name {
    font-size: 1.6rem;
    margin-bottom: 8px;
    letter-spacing: 0.05em;
}

.product-detail-price {
    font-size: 1.3rem;
    color: var(--dg-dark);
    font-weight: 300;
    margin-bottom: 24px;
}

.product-detail-original {
    font-size: 0.9rem;
    color: #999;
    text-decoration: line-through;
    margin-left: 8px;
    font-weight: 300;
}

.product-detail-description {
    color: var(--dg-gray);
    font-size: 0.85rem;
    line-height: 1.8;
    margin-bottom: 24px;
    white-space: pre-line;
    overflow-wrap: anywhere;
}

.product-detail-options {
    margin-bottom: 24px;
}

.option-label {
    font-size: 0.78rem;
    color: var(--dg-gray);
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.option-swatches {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.option-swatch {
    min-width: 44px;
    min-height: 36px;
    padding: 7px 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--dg-lighter-gray);
    border-radius: 999px;
    background: var(--dg-white);
    color: var(--dg-dark);
    font-size: 0.8rem;
    line-height: 1.25;
    text-align: center;
    overflow-wrap: anywhere;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.option-swatch.active,
.option-swatch:hover {
    border-color: var(--dg-dark);
    background: var(--dg-dark);
    color: var(--dg-white);
}

.option-sizes {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.option-size {
    padding: 8px 20px;
    border: 1px solid var(--dg-lighter-gray);
    font-size: 0.8rem;
    color: var(--dg-dark);
    cursor: pointer;
    transition: var(--transition);
}

.option-size.active,
.option-size:hover {
    border-color: var(--dg-dark);
    background: var(--dg-dark);
    color: var(--dg-white);
}

.option-size.disabled {
    color: var(--dg-lighter-gray);
    cursor: not-allowed;
    text-decoration: line-through;
}

.product-detail-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.btn-primary {
    flex: 1;
    padding: 16px 24px;
    background: var(--dg-black);
    color: var(--dg-white);
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

.btn-primary:hover {
    background: var(--dg-gold);
    color: var(--dg-white);
}

.btn-outline {
    padding: 16px 24px;
    border: 1px solid var(--dg-dark);
    color: var(--dg-dark);
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

.btn-outline:hover {
    background: var(--dg-dark);
    color: var(--dg-white);
}

.product-detail-accordion {
    border-top: 1px solid #eee;
}

.accordion-item {
    border-bottom: 1px solid #eee;
}

.accordion-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    cursor: pointer;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

.accordion-header:hover {
    color: var(--dg-gold);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    color: var(--dg-gray);
    font-size: 0.82rem;
    line-height: 1.6;
}

.product-detail-accordion .accordion-content > p {
    white-space: pre-line;
    overflow-wrap: anywhere;
}

.accordion-content.open {
    max-height: 1200px;
    padding-bottom: 16px;
}

.size-chart-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--dg-dark);
    margin: 0 0 10px;
}

.size-chart-table-wrap {
    overflow-x: auto;
    margin-bottom: 12px;
}

.size-chart-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.75rem;
}

.size-chart-table th,
.size-chart-table td {
    border: 1px solid #e5e7eb;
    padding: 7px 8px;
    text-align: center;
    white-space: nowrap;
}

.size-chart-table th {
    background: #f7f7f7;
    font-weight: 600;
    color: #111;
}

.size-chart-table td {
    color: #555;
}

/* ============================================
   PAGE CONTENT
   ============================================ */
.page-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 0;
    line-height: 1.8;
}

.page-content h2 {
    font-size: 1.3rem;
    margin: 32px 0 12px;
}

.page-content h3 {
    font-size: 1.1rem;
    margin: 24px 0 8px;
}

.page-content p {
    margin-bottom: 16px;
    color: var(--dg-gray);
    font-size: 0.88rem;
}

.page-content ul {
    list-style: disc;
    padding-left: 24px;
    margin-bottom: 16px;
}

.page-content ul li {
    margin-bottom: 8px;
    color: var(--dg-gray);
    font-size: 0.88rem;
}

/* ============================================
   SERVICE PAGES
   ============================================ */
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    padding: 40px 0;
}

.service-card {
    padding: 32px 24px;
    text-align: center;
    border: 1px solid #eee;
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--dg-gold);
    box-shadow: var(--shadow);
}

.service-card-icon {
    font-size: 2rem;
    margin-bottom: 16px;
    color: var(--dg-gold);
}

.service-card h3 {
    font-size: 1rem;
    margin-bottom: 8px;
    letter-spacing: 0.08em;
}

.service-card p {
    color: var(--dg-gray);
    font-size: 0.82rem;
    line-height: 1.5;
}

/* ============================================
   ACCOUNT PAGES
   ============================================ */
.auth-form {
    max-width: 420px;
    margin: 60px auto;
    padding: 40px;
    border: 1px solid #eee;
}

.auth-form h2 {
    text-align: center;
    font-size: 1.3rem;
    margin-bottom: 24px;
    letter-spacing: 0.08em;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.78rem;
    color: var(--dg-gray);
    margin-bottom: 6px;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--dg-lighter-gray);
    font-size: 0.88rem;
    color: var(--dg-dark);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--dg-gold);
}

.form-submit {
    width: 100%;
    padding: 14px;
    background: var(--dg-black);
    color: var(--dg-white);
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    transition: var(--transition);
    cursor: pointer;
}

.form-submit:hover {
    background: var(--dg-gold);
}

.form-footer {
    text-align: center;
    margin-top: 16px;
    font-size: 0.82rem;
    color: var(--dg-gray);
}

.form-footer a {
    color: var(--dg-gold);
}

.form-footer a:hover {
    text-decoration: underline;
}

/* ============================================
   CART
   ============================================ */
.cart-page {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 0;
}

.cart-header {
    display: grid;
    grid-template-columns: 3fr 1fr 1fr 1fr;
    gap: 16px;
    padding: 12px 0;
    border-bottom: 1px solid #eee;
    font-size: 0.78rem;
    color: var(--dg-gray);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.cart-item {
    display: grid;
    grid-template-columns: 3fr 1fr 1fr 1fr;
    gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid #eee;
    align-items: center;
}

.cart-item-product {
    display: flex;
    gap: 16px;
    align-items: center;
}

.cart-item-image {
    width: 80px;
    height: 106px;
    background: var(--dg-lightest);
    overflow: hidden;
}

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

.cart-item-name {
    font-size: 0.85rem;
    font-weight: 400;
}

.cart-item-detail {
    font-size: 0.78rem;
    color: var(--dg-light-gray);
    margin-top: 4px;
}

.cart-item-qty {
    display: flex;
    align-items: center;
    gap: 8px;
}

.qty-btn {
    width: 28px;
    height: 28px;
    border: 1px solid var(--dg-lighter-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.85rem;
}

.qty-btn:hover {
    border-color: var(--dg-dark);
}

.qty-value {
    width: 36px;
    text-align: center;
    font-size: 0.85rem;
}

.cart-item-price,
.cart-item-total {
    font-size: 0.85rem;
    color: var(--dg-dark);
}

.cart-item-remove {
    color: var(--dg-light-gray);
    cursor: pointer;
    transition: var(--transition);
}

.cart-item-remove:hover {
    color: var(--dg-red);
}

.cart-summary {
    margin-top: 24px;
    text-align: right;
}

.cart-summary-row {
    display: flex;
    justify-content: flex-end;
    gap: 24px;
    padding: 8px 0;
    font-size: 0.85rem;
}

.cart-summary-row.total {
    font-size: 1.1rem;
    font-weight: 600;
    border-top: 1px solid #eee;
    padding-top: 16px;
    margin-top: 8px;
}

/* ============================================
   BACK TO TOP
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    background: var(--dg-black);
    color: var(--dg-white);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    font-size: 1rem;
}

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

.back-to-top:hover {
    background: var(--dg-gold);
}

/* ============================================
   LOADING / NOTIFICATION
   ============================================ */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 14px 24px;
    background: var(--dg-black);
    color: var(--dg-white);
    font-size: 0.82rem;
    z-index: 9999;
    opacity: 0;
    transform: translateY(-10px);
    transition: var(--transition);
    pointer-events: none;
}

.notification.show {
    opacity: 1;
    transform: translateY(0);
}

/* Header notification bell and panel */
.header-action-notifications,
.mobile-notif-trigger {
    position: relative;
}

.notif-badge {
    display: none;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: -5px;
    right: -5px;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    border-radius: 8px;
    background: #c8102e;
    color: #fff;
    font-size: 10px;
    line-height: 1;
    letter-spacing: 0;
}

.notifications-panel {
    display: none;
    position: fixed;
    top: 64px;
    right: 36px;
    width: 380px;
    max-width: calc(100vw - 24px);
    max-height: 70vh;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    box-shadow: 0 12px 36px rgba(0,0,0,0.14);
    z-index: 5000;
    overflow: hidden;
}

.notifications-panel.open {
    display: block;
}

.notifications-panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border-bottom: 1px solid #eee;
    background: #fff;
    position: sticky;
    top: 0;
    z-index: 1;
}

.notifications-panel-head strong {
    font-size: 13px;
    font-weight: 600;
    color: #1a1a1a;
    letter-spacing: 0.04em;
}

.notifications-read-all {
    background: none;
    border: none;
    color: #c8102e;
    font-size: 12px;
    cursor: pointer;
    padding: 4px;
}

.notifications-list {
    max-height: calc(70vh - 48px);
    overflow-y: auto;
}

.notifications-item {
    display: block;
    padding: 12px 16px;
    border-bottom: 1px solid #f3f4f6;
    text-decoration: none;
    color: #1a1a1a;
}

.notifications-item.unread {
    background: #faf7ef;
}

.notifications-item:hover {
    background: #f3f4f6;
}

.notifications-item-top {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 4px;
}

.notifications-type {
    font-size: 11px;
    color: #c8a96e;
}

.notifications-time {
    font-size: 11px;
    color: #9ca3af;
}

.notifications-title {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 4px;
}

.notifications-content {
    font-size: 12px;
    color: #6b7280;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.notifications-empty {
    padding: 32px 16px;
    text-align: center;
    color: #9ca3af;
    font-size: 13px;
}

.notifications-detail-hint {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 8px;
    font-size: 11px;
    font-weight: 600;
    color: #c8a96e;
}

.notifications-detail-hint i {
    font-size: 10px;
}

.notifications-detail-mask {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 6000;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(17, 24, 39, 0.45);
}

.notifications-detail-mask.open {
    display: flex;
}

.notifications-detail-modal {
    position: relative;
    width: 520px;
    max-width: 100%;
    max-height: 80vh;
    overflow: auto;
    padding: 28px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.notifications-detail-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
    border: none;
    background: none;
    color: #6b7280;
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
}

.notifications-detail-close:hover {
    color: #1a1a1a;
}

.notifications-detail-type {
    color: #c8a96e;
    font-size: 12px;
    letter-spacing: 0.04em;
}

.notifications-detail-modal h3 {
    margin: 10px 0 6px;
    color: #1a1a1a;
    font-size: 18px;
    font-weight: 600;
    line-height: 1.4;
}

.notifications-detail-meta {
    margin-bottom: 16px;
    color: #9ca3af;
    font-size: 12px;
}

.notifications-detail-content {
    color: #374151;
    font-size: 14px;
    line-height: 1.8;
    white-space: pre-wrap;
    word-break: break-word;
}

.notifications-detail-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 24px;
}

.notifications-detail-link,
.notifications-detail-close-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 8px 18px;
    border-radius: 6px;
    font-size: 13px;
    text-decoration: none;
    cursor: pointer;
}

.notifications-detail-link {
    background: #1a1a1a;
    color: #fff;
    border: 1px solid #1a1a1a;
}

.notifications-detail-link:hover {
    background: #c8a96e;
    border-color: #c8a96e;
}

.notifications-detail-close-btn {
    background: #fff;
    color: #6b7280;
    border: 1px solid #d1d5db;
}

.notifications-detail-close-btn:hover {
    color: #1a1a1a;
    border-color: #9ca3af;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1200px) {
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .container {
        padding: 0 24px;
    }
    .header-inner {
        padding: 0 24px;
    }
    .header-actions {
        right: 24px;
    }
    .product-grid-2,
    .product-grid-5 {
        grid-template-columns: repeat(2, 1fr);
    }
    .brand-story {
        grid-template-columns: 1fr;
    }
    .product-detail {
        grid-template-columns: 1fr;
    }
    .campaign-content {
        left: 24px;
        max-width: 300px;
    }
}

@media (max-width: 768px) {
    .header {
        display: none;
    }
    .mobile-header {
        display: flex;
    }
    .notifications-panel {
        top: 52px;
        right: 12px;
        left: 12px;
        width: auto;
    }
    .notifications-detail-mask {
        padding: 12px;
    }
    .notifications-detail-modal {
        padding: 20px;
    }
    .topbar {
        font-size: 0.7rem;
        padding: 6px 12px;
    }
    .container {
        padding: 0 16px;
    }
    .hero {
        height: 60vh;
        min-height: 350px;
    }
    .hero-content h1 {
        font-size: 1.6rem;
    }
    .hero-arrow {
        display: none;
    }
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    .featured-group + .featured-group {
        margin-top: 36px;
    }
    .featured-group-heading {
        gap: 12px;
        margin-bottom: 14px;
    }
    .product-grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    .section-padding {
        padding: 40px 0;
    }
    .section-title {
        font-size: 1.3rem;
    }
    .category-tiles {
        grid-template-columns: repeat(2, 1fr);
    }
    .campaign-section {
        height: 50vh;
        min-height: 300px;
    }
    .campaign-content {
        left: 16px;
        right: 16px;
        max-width: 100%;
        text-align: center;
    }
    .campaign-content h2 {
        font-size: 1.3rem;
    }
    .brand-story-content {
        padding: 40px 24px;
    }
    .footer-inner {
        padding: 0 24px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .service-grid {
        grid-template-columns: 1fr;
    }
    .filter-bar {
        flex-direction: column;
        align-items: flex-start;
    }
    .page-header h1 {
        font-size: 1.4rem;
    }
    .product-detail {
        gap: 24px;
    }
    .auth-form {
        margin: 40px 16px;
        padding: 24px;
    }
    .cart-header {
        display: none;
    }
    .cart-item {
        grid-template-columns: 1fr;
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    .hero {
        height: 50vh;
        min-height: 300px;
    }
    .hero-content h1 {
        font-size: 1.3rem;
    }
    .hero-btn {
        padding: 10px 24px;
        font-size: 0.75rem;
    }
}

/* ============================================
   DAILY GREETING
   ============================================ */
.daily-greeting {
    background: var(--dg-bg);
    border-top: 1px solid var(--dg-lighter-gray);
    border-bottom: 1px solid var(--dg-lighter-gray);
    padding: 36px 0;
}

.daily-greeting-inner {
    display: grid;
    grid-template-columns: 210px 1fr;
    gap: 36px;
    align-items: center;
    min-height: 118px;
}

.daily-greeting-date {
    padding-right: 28px;
    border-right: 1px solid var(--dg-lighter-gray);
}

.daily-greeting-date .greeting-date {
    font-size: 0.78rem;
    color: var(--dg-light-gray);
    letter-spacing: 0.12em;
}

.daily-greeting-date h3 {
    font-size: 1.2rem;
    color: var(--dg-dark);
    margin: 6px 0;
    letter-spacing: 0.08em;
}

.daily-greeting-date .greeting-lunar,
.daily-greeting-date .greeting-term {
    font-size: 0.78rem;
    color: var(--dg-gray);
    line-height: 1.7;
}

.daily-greeting-date .greeting-term {
    color: var(--dg-gold);
}

.daily-greeting-date .greeting-wuxing {
    margin-top: 8px;
    font-size: 0.84rem;
    color: var(--dg-gold);
    line-height: 1.6;
    letter-spacing: 0.04em;
}

.daily-greeting-content .greeting-main {
    font-family: var(--font-primary);
    font-size: 1.08rem;
    line-height: 1.8;
    color: var(--dg-dark);
    margin-bottom: 12px;
}

.greeting-outfit {
    border-top: 1px solid var(--dg-lighter-gray);
    padding-top: 12px;
}

.greeting-outfit-label {
    display: inline-block;
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    color: var(--dg-gold);
    margin-right: 12px;
    text-transform: uppercase;
}

.greeting-outfit-text {
    display: inline;
    font-size: 0.88rem;
    color: var(--dg-gray);
    line-height: 1.8;
}

.greeting-guide {
    margin-top: 10px;
    font-size: 0.8rem;
    color: var(--dg-light-gray);
    letter-spacing: 0.04em;
}

.greeting-detail-link {
    display: inline-block;
    margin-top: 10px;
    padding: 6px 14px;
    border: 1px solid var(--dg-lighter-gray);
    border-radius: 2px;
    color: var(--dg-dark);
    font-size: 0.76rem;
    letter-spacing: 0.06em;
    text-decoration: none;
    transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.greeting-detail-link:hover {
    border-color: var(--dg-gold);
    color: var(--dg-gold);
}

.daily-greeting-loading {
    min-height: 96px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dg-light-gray);
    font-size: 0.85rem;
    letter-spacing: 0.08em;
}

@media (max-width: 768px) {
    .daily-greeting {
        padding: 24px 0;
    }
    .daily-greeting-inner {
        grid-template-columns: 1fr;
        gap: 16px;
        min-height: 0;
    }
    .daily-greeting-date {
        padding-right: 0;
        padding-bottom: 14px;
        border-right: none;
        border-bottom: 1px solid var(--dg-lighter-gray);
    }
    .daily-greeting-date h3 {
        margin: 4px 0;
    }
    .daily-greeting-loading {
        min-height: 64px;
    }
}

/* ============================================
   AI RECOMMENDATIONS
   ============================================ */
.recommendation-section {
    padding-top: 40px;
    padding-bottom: 56px;
}

.recommendation-section .section-title {
    margin-bottom: 8px;
}

.recommendation-grid {
    margin-top: 20px;
}

.recommendation-card {
    position: relative;
}

.recommendation-card-link {
    display: block;
    height: 100%;
    color: inherit;
    text-decoration: none;
}

.recommendation-reason {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-top: 10px;
    font-size: 0.74rem;
    line-height: 1.6;
    color: var(--dg-gray);
    letter-spacing: 0.02em;
}

.product-card-original {
    display: block;
    margin-top: 4px;
    font-size: 0.76rem;
    font-weight: 400;
    color: var(--dg-light-gray);
    text-decoration: line-through;
}

@media (max-width: 768px) {
    .recommendation-section {
        padding-top: 28px;
        padding-bottom: 40px;
    }
    .recommendation-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }
    .recommendation-reason {
        font-size: 0.7rem;
    }
}

/* ============================================
   AI CUSTOMER SERVICE CHAT
   ============================================ */
.dv-chat-fab {
    position: fixed;
    right: 104px;
    bottom: 30px;
    z-index: 1002;
    width: 58px;
    height: 58px;
    border: 1px solid rgba(200, 169, 110, 0.65);
    border-radius: 50%;
    background: var(--dg-black);
    color: var(--dg-white);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
    transition: var(--transition);
}

.dv-chat-fab svg {
    width: 21px;
    height: 21px;
}

.dv-chat-fab span {
    font-size: 0.58rem;
    letter-spacing: 0.06em;
    line-height: 1;
}

.dv-chat-fab:hover,
.dv-chat-fab.active {
    background: var(--dg-gold);
    color: #fff;
}

.dv-chat-panel {
    position: fixed;
    right: 24px;
    bottom: 100px;
    z-index: 1003;
    width: 370px;
    max-height: 620px;
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid #e7e1d8;
    border-radius: 10px;
    box-shadow: 0 18px 50px rgba(26, 26, 26, 0.18);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    overflow: hidden;
}

.dv-chat-panel.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dv-chat-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--dg-black);
    color: #fff;
}

.dv-chat-head strong {
    font-family: var(--font-primary);
    font-size: 0.95rem;
    letter-spacing: 0.06em;
}

.dv-chat-status {
    display: block;
    margin-top: 2px;
    font-size: 0.68rem;
    color: rgba(255, 255, 255, 0.7);
}

.dv-chat-close {
    flex: 0 0 30px;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    color: #fff;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dv-chat-close:hover {
    background: rgba(255, 255, 255, 0.12);
}

.dv-chat-messages {
    flex: 1 1 auto;
    min-height: 220px;
    max-height: 480px;
    overflow-y: auto;
    padding: 14px;
    background: var(--dg-bg);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.dv-chat-system {
    align-self: center;
    max-width: 92%;
    padding: 8px 12px;
    border-radius: 14px;
    background: rgba(26, 26, 26, 0.06);
    color: var(--dg-gray);
    font-size: 0.72rem;
    line-height: 1.6;
    text-align: center;
}

.dv-chat-msg {
    max-width: 86%;
    padding: 10px 12px;
    border-radius: 12px;
    font-size: 0.82rem;
    line-height: 1.65;
    white-space: pre-wrap;
    word-break: break-word;
}

.dv-chat-msg-meta {
    display: block;
    margin-bottom: 4px;
    font-size: 0.65rem;
    letter-spacing: 0.02em;
}

.dv-chat-msg.user {
    align-self: flex-end;
    background: var(--dg-black);
    color: #fff;
    border-bottom-right-radius: 4px;
}

.dv-chat-msg.user .dv-chat-msg-meta {
    color: rgba(255, 255, 255, 0.55);
}

.dv-chat-msg.assistant {
    align-self: flex-start;
    background: #fff;
    border: 1px solid #e5dfd6;
    color: var(--dg-dark);
    border-bottom-left-radius: 4px;
}

.dv-chat-msg.assistant .dv-chat-msg-meta {
    color: var(--dg-gold);
}

.dv-chat-quick {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px 14px 0;
}

.dv-chat-quick button {
    padding: 6px 10px;
    border: 1px solid #ddd5c9;
    border-radius: 16px;
    background: #fff;
    color: #555;
    font-size: 0.72rem;
    transition: var(--transition);
}

.dv-chat-quick button:hover {
    border-color: var(--dg-gold);
    color: var(--dg-gold);
}

.dv-chat-input-row {
    display: flex;
    gap: 8px;
    align-items: center;
    padding: 12px 14px;
    border-top: 1px solid #eee;
    background: #fff;
}

.dv-chat-input {
    flex: 1;
    min-width: 0;
    height: 38px;
    padding: 0 12px;
    border: 1px solid #ddd5c9;
    border-radius: 19px;
    background: #faf9f7;
    color: var(--dg-dark);
    font-size: 0.8rem;
}

.dv-chat-input:focus {
    border-color: var(--dg-gold);
    background: #fff;
}

.dv-chat-send {
    flex: 0 0 38px;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--dg-black);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dv-chat-send svg {
    width: 16px;
    height: 16px;
}

.dv-chat-send:hover {
    background: var(--dg-gold);
}

.dv-chat-send:disabled {
    opacity: 0.45;
    cursor: default;
}

.dv-chat-send-tip {
    display: none;
    padding: 0 14px 10px;
    font-size: 0.68rem;
    color: var(--dg-gold);
}

@media (max-width: 768px) {
    .dv-chat-fab {
        right: 88px;
        bottom: 22px;
        width: 54px;
        height: 54px;
    }
    .dv-chat-panel {
        right: 12px;
        left: 12px;
        bottom: 92px;
        width: auto;
        max-height: calc(100vh - 116px);
    }
    .dv-chat-messages {
        min-height: 180px;
        max-height: none;
    }
}

@media (max-width: 480px) {
    .dv-chat-fab {
        right: 78px;
        bottom: 16px;
    }
    .dv-chat-panel {
        bottom: 82px;
    }
}