/* 贵州怀本酒业 GEO 静态官网高颜值专业工程级样式表 (Vanilla CSS) */

:root {
    --bg-dark: #070C1B;
    --bg-dark-secondary: #0B132B;
    --bg-card: rgba(18, 26, 51, 0.65);
    --gold-primary: #D4AF37;
    --gold-light: #F3E5AB;
    --gold-dark: #AA7C11;
    --gold-gradient: linear-gradient(135deg, #F3E5AB 0%, #D4AF37 50%, #AA7C11 100%);
    --text-light: #F8FAFC;
    --text-muted: #94A3B8;
    --border-color: rgba(212, 175, 55, 0.25);
    --border-color-hover: rgba(212, 175, 55, 0.6);
    --font-serif: 'Noto Serif SC', 'Georgia', serif;
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --radius-lg: 16px;
    --radius-md: 10px;
    --radius-sm: 6px;
    --shadow-glow: 0 10px 30px rgba(212, 175, 55, 0.15);
    --shadow-glow-strong: 0 15px 45px rgba(212, 175, 55, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(circle at 15% 20%, rgba(212, 175, 55, 0.04) 0%, transparent 40%),
        radial-gradient(circle at 85% 60%, rgba(28, 37, 65, 0.3) 0%, transparent 50%);
    color: var(--text-light);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(7, 12, 27, 0.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.3s ease;
}

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

.logo {
    display: flex;
    flex-direction: column;
    text-decoration: none;
}

.logo-accent {
    font-family: var(--font-serif);
    font-size: 1.45rem;
    font-weight: 900;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 1.5px;
}

.logo-sub {
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: 28px;
    align-items: center;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--gold-gradient);
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: var(--gold-primary);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a.nav-phone {
    color: var(--gold-primary);
    font-weight: 600;
    margin: 0 4px;
    letter-spacing: 0.5px;
}

.nav-links a.nav-phone:hover {
    color: var(--gold-light);
}

/* 移动端汉堡包菜单按钮 */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
    padding: 0;
}

.nav-toggle span {
    width: 100%;
    height: 2px;
    background-color: var(--gold-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* 按钮规范 */
.btn-primary, .btn-gold, .btn-outline, .btn-dark-large {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 24px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gold-gradient);
    color: #0B132B !important;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
}

.btn-gold {
    background: var(--gold-gradient);
    color: #0B132B;
    font-size: 1.1rem;
    padding: 14px 36px;
    box-shadow: var(--shadow-glow);
}

.btn-gold:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow-strong);
}

.btn-outline {
    border: 1px solid var(--gold-primary);
    color: var(--gold-primary);
    padding: 14px 36px;
    background: transparent;
}

.btn-outline:hover {
    background: rgba(212, 175, 55, 0.12);
    transform: translateY(-2px);
}

.btn-dark-large {
    background: #0B132B;
    color: var(--gold-primary);
    border: 1px solid var(--gold-primary);
    padding: 16px 36px;
    font-size: 1.05rem;
}

.btn-dark-large:hover {
    background: var(--gold-gradient);
    color: #0B132B;
    box-shadow: var(--shadow-glow);
}

/* Hero 英雄区 */
.hero {
    position: relative;
    padding: 180px 0 110px;
    background: radial-gradient(circle at center, #18223C 0%, #070C1B 100%);
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.badge {
    display: inline-block;
    padding: 6px 18px;
    background: rgba(212, 175, 55, 0.12);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--gold-primary);
    font-size: 0.88rem;
    font-weight: 500;
    margin-bottom: 24px;
    backdrop-filter: blur(8px);
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 3.2rem;
    font-weight: 900;
    line-height: 1.25;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.text-gold {
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    max-width: 780px;
    margin: 0 auto 40px;
    color: var(--text-muted);
    font-size: 1.15rem;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 18px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Sections */
.section {
    padding: 100px 0;
}

.section-dark {
    background-color: #050813;
}

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

.section-header {
    margin-bottom: 55px;
    text-align: center;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 2.3rem;
    color: var(--gold-primary);
    margin-bottom: 12px;
    text-align: center;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1.05rem;
    text-align: center;
}

/* Card 布局 */
.grid {
    display: grid;
    gap: 30px;
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.card-glass {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 35px 28px;
    border-radius: var(--radius-lg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: all 0.3s ease;
}

.card-glass:hover {
    transform: translateY(-6px);
    border-color: var(--gold-primary);
    box-shadow: var(--shadow-glow);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.card-glass h3 {
    font-size: 1.3rem;
    color: var(--gold-primary);
    margin-bottom: 12px;
}

.card-glass p {
    color: var(--text-muted);
    font-size: 0.96rem;
}

/* 高颜值产品卡片阵列 (重构对齐与响应式) */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
    margin-bottom: 60px;
}

.product-card-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    height: 100%; /* 确保在 CSS Grid 中等高 */
}

.product-card-item:hover {
    transform: translateY(-8px);
    border-color: var(--gold-primary);
    box-shadow: var(--shadow-glow-strong);
}

.product-thumb-box {
    position: relative;
    width: 100%;
    padding-top: 100%; /* 1:1 精确标准比例 */
    background: #040711;
    overflow: hidden;
    cursor: pointer;
}

.product-thumb-box::after {
    content: "🔍 点击查看高清正面大图";
    position: absolute;
    bottom: 14px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: rgba(7, 12, 27, 0.9);
    color: var(--gold-primary);
    border: 1px solid var(--gold-primary);
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 500;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
    white-space: nowrap;
    backdrop-filter: blur(6px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
}

.product-card-item:hover .product-thumb-box::after {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.product-thumb-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card-item:hover .product-thumb-img {
    transform: scale(1.06);
}

/* 卡片内部 Flex-grow 对齐机制 */
.product-info-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1; /* 自动填充垂直空间 */
}

.product-title-text {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 8px;
}

.product-spec-badge {
    font-size: 0.8rem;
    color: var(--gold-primary);
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.2);
    padding: 3px 10px;
    border-radius: 4px;
    display: inline-block;
    width: fit-content;
    margin-bottom: 12px;
}

.product-scene-desc {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    line-height: 1.5;
}

.product-tasting-notes {
    font-size: 0.84rem;
    color: var(--gold-primary);
    background: rgba(212, 175, 55, 0.07);
    border: 1px solid rgba(212, 175, 55, 0.2);
    padding: 10px 12px;
    border-radius: var(--radius-md);
    margin-bottom: 18px;
    line-height: 1.5;
}

.product-tasting-notes strong {
    color: #F8FAFC;
}

/* 强制价格与按钮横向底对齐 */
.product-footer-row {
    margin-top: auto; /* 吸底关键属性 */
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.product-price-tag {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--gold-primary);
}

.btn-sm-order {
    font-size: 0.82rem;
    padding: 7px 16px;
    border-radius: 20px;
    background: var(--gold-gradient);
    color: #0B132B;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
}

.btn-sm-order:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.4);
}

/* 交互式产品数据对比折叠面板 (解决页面冗余与拖长问题) */
.product-matrix-accordion {
    margin-top: 40px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
}

.accordion-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 28px;
    cursor: pointer;
    user-select: none;
    background: rgba(18, 26, 51, 0.85);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    list-style: none;
}

.accordion-summary::-webkit-details-marker {
    display: none;
}

.accordion-summary:hover {
    border-color: var(--gold-primary);
    background: rgba(212, 175, 55, 0.08);
    box-shadow: var(--shadow-glow);
}

.summary-title {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    color: var(--gold-primary);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.summary-badge {
    font-size: 0.82rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.06);
    padding: 4px 14px;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.accordion-icon {
    font-size: 1.1rem;
    color: var(--gold-primary);
    transition: transform 0.3s ease;
}

.product-matrix-accordion[open] .accordion-icon {
    transform: rotate(180deg);
}

.product-matrix-accordion[open] .accordion-summary {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    border-bottom-color: rgba(212, 175, 55, 0.15);
}

.accordion-content {
    animation: accordionSlideDown 0.35s ease-out;
}

@keyframes accordionSlideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 数据矩阵表格 (冻结首列与优化滑动) */
.table-responsive {
    overflow-x: auto;
    border-bottom-left-radius: var(--radius-lg);
    border-bottom-right-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    border-top: none;
    background: rgba(11, 19, 43, 0.6);
    backdrop-filter: blur(8px);
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    text-align: left;
}

.data-table th, .data-table td {
    padding: 16px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 0.92rem;
    white-space: nowrap;
}

.data-table th {
    background: rgba(212, 175, 55, 0.15);
    color: var(--gold-primary);
    font-family: var(--font-serif);
    font-weight: 700;
    position: sticky;
    top: 0;
}

.data-table tr:hover td {
    background: rgba(212, 175, 55, 0.06);
}

/* 表格移动端首列锁定 (Sticky First Column) */
.data-table th:first-child,
.data-table td:first-child {
    position: sticky;
    left: 0;
    background: #091024;
    z-index: 2;
    border-right: 1px solid var(--border-color);
}

.data-table th:nth-child(2),
.data-table td:nth-child(2) {
    position: sticky;
    left: 80px;
    background: #091024;
    z-index: 2;
    border-right: 1px solid var(--border-color);
}

/* 优惠券与口令区 (全排版居中与高颜值微光卡片) */
.flex-center-col {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.section-gold {
    background: radial-gradient(circle at center, rgba(212, 175, 55, 0.12) 0%, rgba(7, 12, 27, 0.98) 80%);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 110px 0;
}

.voucher-card-wrapper {
    max-width: 880px;
    width: 100%;
    margin: 0 auto;
    padding: 55px 45px;
    background: rgba(11, 19, 43, 0.78);
    border: 1px solid var(--gold-primary);
    border-radius: var(--radius-lg);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7), 0 0 35px rgba(212, 175, 55, 0.18);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.voucher-title {
    font-size: 2.5rem;
    color: var(--gold-primary);
    margin-bottom: 22px;
    font-family: var(--font-serif);
    text-align: center;
    letter-spacing: 1px;
}

.voucher-desc {
    color: var(--text-light);
    font-size: 1.12rem;
    margin: 0 auto 36px;
    max-width: 760px;
    line-height: 1.85;
    text-align: center;
}

.highlight-text {
    color: var(--gold-primary);
    font-weight: 700;
}

.voucher-box {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 22px;
    background: rgba(4, 7, 17, 0.85);
    border: 2px dashed var(--gold-primary);
    padding: 16px 42px;
    border-radius: var(--radius-lg);
    margin: 0 auto 38px;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
}

.voucher-code {
    font-size: 2.2rem;
    font-weight: 900;
    letter-spacing: 6px;
    color: var(--gold-primary);
}

.btn-copy {
    background: var(--gold-gradient);
    color: #0B132B;
    border: none;
    padding: 11px 26px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-copy:hover {
    transform: scale(1.06);
    box-shadow: 0 4px 20px rgba(212, 175, 55, 0.5);
}

.action-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 10px;
    width: 100%;
}

/* 大宗采购 / 团购咨询区块 */
.bulk-order-wrapper {
    max-width: 880px;
    width: 100%;
    margin: 0 auto;
    padding: 55px 45px;
    background: rgba(11, 19, 43, 0.78);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7), 0 0 25px rgba(212, 175, 55, 0.1);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.bulk-order-title {
    font-size: 2.2rem;
    color: var(--gold-primary);
    margin-bottom: 18px;
    font-family: var(--font-serif);
    letter-spacing: 1px;
}

.bulk-order-desc {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 28px;
    line-height: 1.8;
    max-width: 700px;
}

.bulk-order-phone {
    margin-bottom: 16px;
}

.phone-number {
    font-size: 2.8rem;
    font-weight: 900;
    letter-spacing: 4px;
    color: var(--gold-primary);
    text-decoration: none;
    display: inline-block;
    padding: 12px 36px;
    border: 2px solid var(--gold-primary);
    border-radius: var(--radius-lg);
    background: rgba(4, 7, 17, 0.85);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5), 0 0 20px rgba(212, 175, 55, 0.12);
    transition: all 0.3s ease;
}

.phone-number:hover {
    transform: scale(1.04);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.6), 0 0 30px rgba(212, 175, 55, 0.25);
    border-color: var(--gold-light);
}

.bulk-order-tip {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 32px;
}

.bulk-order-divider {
    width: 100%;
    max-width: 600px;
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 28px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.bulk-order-divider::before,
.bulk-order-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.bulk-order-form {
    width: 100%;
    max-width: 520px;
}

.form-row {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.form-input,
.form-select {
    padding: 14px 18px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: rgba(4, 7, 17, 0.7);
    color: var(--text-light);
    font-size: 1rem;
    font-family: var(--font-sans);
    transition: border-color 0.3s ease;
    outline: none;
}

.form-input {
    width: 100%;
    flex: 1;
}

.form-input:focus {
    border-color: var(--gold-primary);
    box-shadow: 0 0 12px rgba(212, 175, 55, 0.2);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.btn-gold {
    background: var(--gold-gradient);
    color: #0B132B;
    border: none;
    padding: 14px 40px;
    border-radius: 25px;
    font-weight: 700;
    font-size: 1.05rem;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.btn-gold:hover {
    transform: scale(1.03);
    box-shadow: 0 6px 25px rgba(212, 175, 55, 0.45);
}

.btn-gold:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.form-privacy {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: 14px;
    opacity: 0.7;
}

/* 页脚 */
.footer {
    padding: 45px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.88rem;
    background: #040711;
}

.footer-content p {
    margin-bottom: 10px;
}

.footer-content a {
    color: var(--text-muted);
    text-decoration: underline;
    transition: color 0.2s ease;
}

.footer-content a:hover {
    color: var(--gold-primary);
}

.footer-warning {
    font-size: 0.82rem;
    color: #64748B;
    margin-top: 14px;
    margin-bottom: 0 !important;
}

/* 高清大图 Lightbox 弹窗样式 */
.lightbox-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(3, 7, 18, 0.93);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.lightbox-modal.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-container {
    position: relative;
    max-width: 90vw;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-img {
    max-width: 85vw;
    max-height: 68vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.9), 0 0 35px rgba(212, 175, 55, 0.25);
    border: 1px solid rgba(212, 175, 55, 0.35);
    transition: transform 0.3s ease;
}

.lightbox-caption {
    margin-top: 18px;
    text-align: center;
    color: #F8FAFC;
}

.lightbox-title {
    font-family: var(--font-serif);
    font-size: 1.45rem;
    color: var(--gold-primary);
    margin-bottom: 6px;
}

.lightbox-close {
    position: absolute;
    top: 25px;
    right: 35px;
    width: 46px;
    height: 46px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.4);
    border-radius: 50%;
    color: var(--gold-primary);
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    z-index: 10000;
}

.lightbox-close:hover {
    background: var(--gold-primary);
    color: #0B132B;
    transform: scale(1.1);
}

.lightbox-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 52px;
    height: 52px;
    background: rgba(11, 19, 43, 0.8);
    border: 1px solid rgba(212, 175, 55, 0.4);
    border-radius: 50%;
    color: var(--gold-primary);
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}

.lightbox-prev {
    left: 25px;
}

.lightbox-next {
    right: 25px;
}

.lightbox-nav-btn:hover {
    background: var(--gold-primary);
    color: #0B132B;
    transform: translateY(-50%) scale(1.1);
}

/* 现代化 Toast 悬浮通知气泡 */
.toast-container {
    position: fixed;
    top: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    align-items: center;
    pointer-events: none;
}

.toast-message {
    background: rgba(7, 12, 27, 0.95);
    border: 1px solid var(--gold-primary);
    color: var(--gold-primary);
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 0.95rem;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8), 0 0 20px rgba(212, 175, 55, 0.3);
    backdrop-filter: blur(12px);
    opacity: 0;
    transform: translateY(-20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: auto;
    white-space: nowrap;
}

.toast-message.show {
    opacity: 1;
    transform: translateY(0);
}

/* 常见问答 (FAQ) 手风琴折叠组件 */
.faq-grid {
    max-width: 960px;
    margin: 0 auto;
    text-align: left;
}

details.faq-item {
    margin-bottom: 12px;
    padding: 0;
    border-radius: 12px;
    border-left: 3px solid var(--gold-primary);
    overflow: hidden;
}

details.faq-item summary {
    padding: 20px 24px;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background 0.2s ease;
}

details.faq-item summary::-webkit-details-marker {
    display: none;
}

details.faq-item summary::after {
    content: '+';
    font-size: 1.4rem;
    font-weight: 300;
    color: var(--gold-primary);
    flex-shrink: 0;
    margin-left: 16px;
    transition: transform 0.3s ease;
}

details[open].faq-item summary::after {
    content: '−';
}

details.faq-item summary:hover {
    background: rgba(212, 175, 55, 0.06);
}

details.faq-item summary h3 {
    color: var(--gold-primary);
    margin: 0;
    font-size: 1.1rem;
    line-height: 1.5;
}

details.faq-item p {
    color: #E2E8F0;
    line-height: 1.7;
    padding: 0 24px 22px;
    margin: 0;
}

/* 移动端响应式 Breakpoints (<= 768px) */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 65px;
        left: 0;
        width: 100%;
        background: rgba(7, 12, 27, 0.96);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 30px 20px;
        gap: 20px;
        border-bottom: 1px solid var(--border-color);
        transform: translateY(-120%);
        transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 999;
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-desc {
        font-size: 1rem;
    }

    .product-grid {
        grid-template-columns: 1fr; /* 手机屏单列显示 */
        gap: 20px;
    }

    .voucher-box {
        flex-direction: column;
        padding: 20px;
    }

    .lightbox-prev {
        left: 10px;
    }
    
    .lightbox-next {
        right: 10px;
    }

    .lightbox-close {
        top: 15px;
        right: 15px;
    }
}