/* ============================================
   帝卡斯首页 - 编辑式沉浸设计
   ============================================ */

/* /* ============ HERO ============ */
.hero-section {
    min-height: 680px;
    position: relative;
    overflow: hidden;
    background-color: var(--ink);
    background-image: var(--bg-texture);
    background-size: cover;
    background-position: center;
}

.hero-section::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--bg-overlay);
    z-index: 0;
    pointer-events: none;
}

.hero-section > * {
    position: relative;
    z-index: 1;
}

.hero-slider {
    height: 100%;
}

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

.hero-slide-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 0;
}

.hero-slide::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg,
        rgba(28, 26, 23, 0.5) 0%,
        rgba(28, 26, 23, 0.3) 40%,
        rgba(28, 26, 23, 0.65) 100%);
    pointer-events: none;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    max-width: 760px;
    padding-left: 5%;
}

.hero-meta {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
    font-size: 11px;
    letter-spacing: 0.3em;
    color: rgba(247, 244, 239, 0.7);
    text-transform: uppercase;
}

.hero-meta-line {
    display: block;
    width: 32px;
    height: 1px;
    background: var(--gold);
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(40px, 6vw, 72px);
    font-weight: 400;
    color: var(--paper);
    margin-bottom: 24px;
    line-height: 1.2;
    letter-spacing: 0.04em;
}

.hero-title-accent {
    color: var(--gold-light);
    font-style: italic;
}

.hero-subtitle {
    font-size: clamp(15px, 1.4vw, 18px);
    margin-bottom: 40px;
    letter-spacing: 0.05em;
    max-width: 480px;
    line-height: 2;
    color: rgba(247, 244, 239, 0.75);
    font-weight: 300;
}

.hero-actions {
    display: flex;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
}

.hero-btn-primary {
    display: inline-block;
    padding: 15px 44px;
    background: var(--paper);
    color: var(--ink);
    font-size: 13px;
    letter-spacing: 0.15em;
    font-weight: 500;
    transition: var(--transition-fast);
    text-decoration: none;
}

.hero-btn-primary:hover {
    background: var(--gold);
    color: var(--paper);
    transform: translateY(-2px);
}

.hero-btn-outline {
    display: inline-block;
    padding: 14px 40px;
    background: transparent;
    color: var(--paper);
    border: 1px solid rgba(247, 244, 239, 0.3);
    font-size: 13px;
    letter-spacing: 0.15em;
    transition: var(--transition-fast);
    text-decoration: none;
}

.hero-btn-outline:hover {
    border-color: var(--gold);
    color: var(--gold-light);
    background: rgba(184, 153, 104, 0.08);
}

.hero-scroll-hint {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    z-index: 5;
}

.hero-scroll-hint span {
    font-size: 10px;
    letter-spacing: 0.3em;
    color: rgba(247, 244, 239, 0.5);
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: rgba(247, 244, 239, 0.2);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gold);
    animation: scrollDown 1.8s ease infinite;
}

@keyframes scrollDown {
    0% { top: -100%; }
    100% { top: 100%; }
}

/* ============ 品牌简介 ============ */
.brand-intro-section {
    padding: 100px 0;
    background: var(--paper);
}

.brand-intro-row {
    display: grid;
    grid-template-columns: 5fr 6fr;
    gap: 80px;
    align-items: center;
}

.brand-intro-visual {
    position: relative;
}

.brand-intro-img {
    position: relative;
    width: 100%;
    height: 520px;
    overflow: hidden;
}

.brand-intro-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1s ease;
}

.brand-intro-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.brand-intro-visual:hover .brand-intro-img img {
    transform: scale(1.03);
}

.brand-intro-badge {
    position: absolute;
    bottom: 24px;
    right: -24px;
    width: 120px;
    height: 120px;
    background: var(--ink);
    color: var(--paper);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.brand-intro-year {
    font-family: var(--font-serif);
    font-size: 32px;
    font-weight: 400;
    line-height: 1;
    color: var(--gold-light);
}

.brand-intro-label {
    font-size: 10px;
    letter-spacing: 0.2em;
    margin-top: 6px;
    color: rgba(247, 244, 239, 0.5);
}

.brand-intro-content .section-title {
    font-size: clamp(28px, 3.5vw, 42px);
    line-height: 1.3;
    margin-bottom: 20px;
}

.brand-intro-content .section-desc {
    font-size: 15px;
    line-height: 2;
    color: var(--text-light);
    margin-bottom: 36px;
}

.brand-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

.brand-feature {
    display: flex;
    gap: 24px;
    align-items: flex-start;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-light);
}

.brand-feature:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.feature-num {
    font-family: var(--font-serif);
    font-size: 24px;
    color: var(--gold);
    min-width: 40px;
    line-height: 1;
    font-weight: 400;
}

.feature-body h4 {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--ink);
    font-family: var(--font-sans);
}

.feature-body p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.7;
}

/* ============ 产品系列 ============ */
.product-series-section {
    padding: 100px 0;
    background: var(--paper-warm);
}

.series-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 50px;
}

.series-card {
    display: block;
    background: var(--white);
    overflow: hidden;
    transition: var(--transition);
}

.series-card:hover {
    box-shadow: var(--shadow);
}

.series-img {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
}

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

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

.series-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--paper-deep);
    color: var(--gold);
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 500;
}

.series-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: flex-end;
    padding: 20px;
    background: linear-gradient(to top, rgba(28, 26, 23, 0.6) 0%, transparent 50%);
}

.series-name {
    color: var(--paper);
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 500;
}

.series-body {
    padding: 24px;
}

.series-body p {
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 14px;
    line-height: 1.7;
}

.series-link {
    color: var(--gold);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.05em;
    transition: var(--transition-fast);
}

.series-card:hover .series-link {
    color: var(--gold-dark);
}

/* ============ 产品网格 ============ */
.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 50px;
}

.product-card {
    background: var(--white);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}

.product-card:hover {
    box-shadow: var(--shadow);
}

.product-img {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
}

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

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

.product-placeholder {
    width: 100%;
    height: 100%;
    background: var(--paper-deep);
}

.product-cat {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(247, 244, 239, 0.9);
    backdrop-filter: blur(8px);
    color: var(--ink);
    font-size: 11px;
    font-weight: 500;
    padding: 5px 12px;
    letter-spacing: 0.05em;
}

.product-body {
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.product-body h3 {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 500;
    color: var(--ink);
    margin: 0;
}

.product-cta {
    color: var(--gold);
    font-size: 12px;
    letter-spacing: 0.1em;
    transition: var(--transition-fast);
}

.product-card:hover .product-cta {
    transform: translateX(4px);
    color: var(--gold-dark);
}

/* ============ 案例展示 ============ */
.cases-section {
    padding: 100px 0;
    background-color: var(--ink);
    background-image: var(--bg-texture);
    background-size: cover;
    background-position: center;
    color: var(--paper);
    position: relative;
    overflow: hidden;
}

.cases-section::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--bg-overlay);
    z-index: 0;
    pointer-events: none;
}

.cases-section > * {
    position: relative;
    z-index: 1;
}

.cases-section .section-title { color: var(--paper); }
.cases-section .section-subtitle { color: rgba(247, 244, 239, 0.55); }

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 50px;
}

.case-card {
    display: block;
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/5;
}

.case-img {
    position: relative;
    width: 100%;
    height: 100%;
}

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

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

.case-placeholder {
    width: 100%;
    height: 100%;
    background: var(--ink-soft);
}

.case-overlay {
    position: absolute;
    inset: 0;
    padding: 28px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    background: linear-gradient(to top, rgba(18, 17, 16, 0.85) 0%, rgba(18, 17, 16, 0.2) 45%, transparent 70%);
}

.case-tag {
    display: inline-block;
    font-size: 11px;
    color: var(--gold-light);
    letter-spacing: 0.15em;
    margin-bottom: 10px;
    align-self: flex-start;
    border-bottom: 1px solid var(--gold);
    padding-bottom: 3px;
}

.case-overlay h3 {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 500;
    color: var(--paper);
    margin: 0 0 6px;
    line-height: 1.3;
}

.case-overlay p {
    font-size: 13px;
    color: rgba(247, 244, 239, 0.6);
    margin: 0;
}

/* ============ 匠心工艺 ============ */
.craft-section {
    padding: 100px 0;
    background: var(--paper);
}

.craft-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.craft-visual {
    position: relative;
    height: 460px;
    overflow: hidden;
}

.craft-img {
    width: 100%;
    height: 100%;
}

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

.craft-content .section-title {
    font-size: clamp(28px, 3.5vw, 40px);
}

.craft-content .section-desc {
    font-size: 15px;
    color: var(--text-light);
    line-height: 2;
    margin-bottom: 40px;
}

.craft-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.craft-stat {
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
}

.craft-stat-num {
    font-family: var(--font-serif);
    font-size: 44px;
    font-weight: 400;
    color: var(--ink);
    line-height: 1;
}

.craft-stat-unit {
    font-family: var(--font-serif);
    font-size: 24px;
    color: var(--gold);
}

.craft-stat-label {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 8px;
    letter-spacing: 0.03em;
}

/* ============ 新闻资讯 ============ */
.news-section {
    padding: 100px 0;
    background: var(--paper-warm);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.news-card {
    background: var(--white);
    overflow: hidden;
    transition: var(--transition);
}

.news-card:hover {
    box-shadow: var(--shadow);
}

.news-link {
    display: block;
    color: inherit;
    text-decoration: none;
}

.news-img {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
}

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

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

.news-placeholder {
    width: 100%;
    height: 100%;
    background: var(--paper-deep);
}

.news-body {
    padding: 28px 24px;
    position: relative;
}

.news-date {
    position: absolute;
    top: -24px;
    left: 24px;
    width: 56px;
    height: 56px;
    background: var(--ink);
    color: var(--paper);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.news-day {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 500;
    line-height: 1;
}

.news-ym {
    font-size: 9px;
    letter-spacing: 0.1em;
    opacity: 0.7;
    margin-top: 2px;
}

.news-body h3 {
    font-family: var(--font-serif);
    font-size: 17px;
    font-weight: 500;
    color: var(--ink);
    margin: 20px 0 12px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-more {
    font-size: 12px;
    color: var(--gold);
    letter-spacing: 0.05em;
    transition: var(--transition-fast);
}

.news-card:hover .news-more {
    color: var(--gold-dark);
}

/* ============ CTA ============ */
.cta-section {
    position: relative;
    padding: 120px 0;
    background-color: var(--ink);
    background-image: var(--bg-texture);
    background-size: cover;
    background-position: center;
    color: var(--paper);
    overflow: hidden;
    text-align: center;
}

.cta-section::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--bg-overlay);
    z-index: 0;
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-label {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 0.3em;
    color: var(--gold);
    margin-bottom: 16px;
    text-transform: uppercase;
}

.cta-title {
    font-family: var(--font-serif);
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 400;
    line-height: 1.3;
    margin: 0 0 16px;
    letter-spacing: 0.04em;
}

.cta-desc {
    font-size: 15px;
    color: rgba(247, 244, 239, 0.55);
    margin-bottom: 36px;
    line-height: 1.9;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.cta-phone {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--gold-light);
    font-size: 18px;
    font-weight: 500;
    font-family: var(--font-serif);
    text-decoration: none;
    transition: var(--transition-fast);
}

.cta-phone:hover {
    color: var(--gold);
}

.cta-phone i {
    width: 40px;
    height: 40px;
    border: 1px solid var(--gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

/* ============ 产品沉浸式大图展示 (卡百利风格) ============ */
.product-showcase-section {
    background-color: var(--ink);
    background-image: var(--bg-texture);
    background-size: cover;
    background-position: center;
    color: var(--paper);
    overflow: hidden;
    position: relative;
}

.product-showcase-section::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--bg-overlay);
    z-index: 0;
    pointer-events: none;
}

.product-showcase-section > * {
    position: relative;
    z-index: 1;
}

.showcase-hero-header {
    padding: 100px 0 60px;
}

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

.showcase-header-text .section-title {
    font-size: clamp(32px, 4.5vw, 52px);
    color: var(--paper);
    margin-bottom: 16px;
}

.showcase-header-text .section-subtitle {
    color: rgba(247, 244, 239, 0.55);
    margin: 0 auto;
    max-width: 520px;
}

.showcase-header-text .section-label span:last-child {
    color: var(--gold);
}

.showcase-header-text .label-line {
    background: var(--gold);
}

/* 沉浸式展示 */
.immersive-showcase {
    display: flex;
    flex-direction: column;
}

.immersive-item {
    position: relative;
    display: block;
    min-height: 70vh;
    text-decoration: none;
    color: var(--paper);
    overflow: hidden;
}

.immersive-bg {
    position: absolute;
    inset: 0;
}

.immersive-bg-img {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transition: transform 1.2s cubic-bezier(0.23, 1, 0.32, 1);
}

.immersive-item:hover .immersive-bg-img {
    transform: scale(1.08);
}

.immersive-bg-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg,
        rgba(18, 17, 16, 0.75) 0%,
        rgba(18, 17, 16, 0.5) 40%,
        rgba(18, 17, 16, 0.15) 70%,
        transparent 100%);
}

.immersive-item:nth-child(even) .immersive-bg-overlay {
    background: linear-gradient(270deg,
        rgba(18, 17, 16, 0.75) 0%,
        rgba(18, 17, 16, 0.5) 40%,
        rgba(18, 17, 16, 0.15) 70%,
        transparent 100%);
}

.immersive-item > .container {
    position: relative;
    z-index: 2;
    height: 100%;
    min-height: 70vh;
    display: flex;
    align-items: center;
}

.immersive-content {
    max-width: 560px;
    opacity: 1;
    transform: translateY(0);
    transition: all 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}

.immersive-item.reveal .immersive-content,
.immersive-item:not(.reveal) .immersive-content {
    opacity: 1;
    transform: translateY(0);
}

.immersive-left {
    margin-right: auto;
    text-align: left;
}

.immersive-right {
    margin-left: auto;
    text-align: right;
}

.immersive-num {
    display: block;
    font-family: var(--font-serif);
    font-size: clamp(80px, 12vw, 180px);
    font-weight: 400;
    line-height: 0.9;
    color: transparent;
    -webkit-text-stroke: 1px var(--gold);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.immersive-cat-label {
    display: inline-block;
    font-size: 11px;
    letter-spacing: 0.35em;
    color: var(--gold-light);
    text-transform: uppercase;
    margin-bottom: 14px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--gold);
}

.immersive-right .immersive-cat-label {
    border-bottom: none;
    border-top: 1px solid var(--gold);
    padding-bottom: 0;
    padding-top: 8px;
}

.immersive-title {
    font-family: var(--font-serif);
    font-size: clamp(36px, 5vw, 64px);
    font-weight: 400;
    color: var(--paper);
    margin: 0 0 28px;
    letter-spacing: 0.04em;
    line-height: 1.15;
}

.immersive-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.2em;
    color: var(--paper);
    padding: 14px 32px;
    border: 1px solid rgba(247, 244, 239, 0.3);
    transition: var(--transition-fast);
    text-transform: uppercase;
}

.immersive-cta i {
    font-size: 14px;
    transition: transform 0.3s ease;
}

.immersive-item:hover .immersive-cta {
    background: var(--gold);
    color: var(--ink);
    border-color: var(--gold);
}

.immersive-item:hover .immersive-cta i {
    transform: translateX(4px);
}

.showcase-footer-cta {
    padding: 80px 0 120px;
    text-align: center;
}

.showcase-footer-cta .btn-lg {
    padding: 18px 56px;
    font-size: 14px;
    letter-spacing: 0.2em;
	border: 1px solid rgba(247, 244, 239, 0.3);
}

/* ============ 产品Tab展示 ============ */
.product-tabs-showcase {
    position: relative;
    min-height: 700px;
}

.product-tabs-nav {
    display: flex;
    justify-content: center;
    overflow-x: auto;
    background: rgba(255, 255, 255, 0.03);
    border-top: 1px solid rgba(247, 244, 239, 0.08);
    border-bottom: 1px solid rgba(247, 244, 239, 0.08);
    scrollbar-width: none;
    gap: 0;
}

.product-tabs-nav::-webkit-scrollbar {
    display: none;
}

.product-tab {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 20px 32px;
    margin: 0 6px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: rgba(247, 244, 239, 0.5);
    font-size: 14px;
    font-weight: 400;
    letter-spacing: 0.08em;
    cursor: pointer;
    transition: all 0.4s ease;
    white-space: nowrap;
    font-family: inherit;
}

.product-tab:hover {
    color: var(--paper);
    background: rgba(255, 255, 255, 0.02);
}

.product-tab.active {
    color: var(--gold);
    border-bottom-color: var(--gold);
    background: rgba(255, 227, 72, 0.05);
}

.product-tab-num {
    font-family: var(--font-serif);
    font-size: 13px;
    opacity: 0.6;
}

.product-tab-name {
    font-size: 15px;
    font-weight: 500;
}

.product-tab-panels {
    position: relative;
    min-height: 560px;
}

.product-tab-panel {
    position: absolute;
    inset: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

.product-tab-panel.active {
    opacity: 1;
    visibility: visible;
}

.product-tab-bg {
    position: absolute;
    inset: 0;
}

.product-tab-bg-img {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transition: transform 1.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.product-tab-panel.active .product-tab-bg-img {
    transform: scale(1);
}

.product-tab-bg-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg,
        rgba(18, 17, 16, 0.85) 0%,
        rgba(18, 17, 16, 0.6) 35%,
        rgba(18, 17, 16, 0.3) 65%,
        rgba(18, 17, 16, 0.1) 100%);
}

.product-tab-panel:nth-child(even) .product-tab-bg-overlay {
    background: linear-gradient(270deg,
        rgba(18, 17, 16, 0.85) 0%,
        rgba(18, 17, 16, 0.6) 35%,
        rgba(18, 17, 16, 0.3) 65%,
        rgba(18, 17, 16, 0.1) 100%);
}

.product-tab-content {
    position: relative;
    z-index: 2;
    height: 100%;
    min-height: 560px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    max-width: 640px;
    padding: 0 5%;
}

.product-tab-num {
    display: block;
    font-family: var(--font-serif);
    font-size: clamp(72px, 10vw, 150px);
    font-weight: 400;
    line-height: 0.9;
    color: transparent;
    -webkit-text-stroke: 1px var(--gold);
    margin-bottom: 20px;
    letter-spacing: -0.02em;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.23, 1, 0.32, 1) 0.1s;
}

.product-tab-label {
    display: inline-block;
    font-size: 11px;
    letter-spacing: 0.35em;
    color: var(--gold-light);
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--gold);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.23, 1, 0.32, 1) 0.2s;
}

.product-tab-title {
    font-family: var(--font-serif);
    font-size: clamp(32px, 4.5vw, 56px);
    font-weight: 400;
    color: var(--paper);
    margin: 0 0 32px;
    letter-spacing: 0.04em;
    line-height: 1.15;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.23, 1, 0.32, 1) 0.3s;
}

.product-tab-cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.2em;
    color: var(--paper);
    padding: 16px 36px;
    border: 1px solid rgba(247, 244, 239, 0.3);
    text-decoration: none;
    transition: var(--transition-fast);
    text-transform: uppercase;
    align-self: flex-start;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.23, 1, 0.32, 1) 0.4s, background 0.3s, color 0.3s, border-color 0.3s, transform 0.3s;
}

.product-tab-cta i {
    font-size: 14px;
    transition: transform 0.3s ease;
}

.product-tab-cta:hover {
    background: var(--gold);
    color: var(--ink);
    border-color: var(--gold);
}

.product-tab-cta:hover i {
    transform: translateX(4px);
}

.product-tab-panel.active .product-tab-num,
.product-tab-panel.active .product-tab-label,
.product-tab-panel.active .product-tab-title,
.product-tab-panel.active .product-tab-cta {
    opacity: 1;
    transform: translateY(0);
}

/* ============ 色彩体系 ============ */
.color-system-section {
    padding: 100px 0 0;
    background-color: var(--ink);
    background-image: var(--bg-texture);
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}

.color-system-section::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--bg-overlay);
    z-index: 0;
    pointer-events: none;
}

.color-system-section > * {
    position: relative;
    z-index: 1;
}

.color-system-section .section-title { color: var(--paper); }
.color-system-section .section-subtitle { color: rgba(247, 244, 239, 0.55); }
.color-system-section .section-label { color: var(--gold-light); }
.color-system-section .label-line { background: var(--gold-light); }

.color-system-tabs {
    padding: 40px 0;
}

.color-tabs-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    border-top: 1px solid rgba(247, 244, 239, 0.08);
    border-bottom: 1px solid rgba(247, 244, 239, 0.08);
}

.color-tab {
    background: transparent;
    border: none;
    border-right: 1px solid rgba(247, 244, 239, 0.08);
    padding: 28px 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-fast);
    color: rgba(247, 244, 239, 0.5);
    position: relative;
}

.color-tab:last-child { border-right: none; }

.color-tab::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gold);
    transition: width 0.4s ease;
}

.color-tab.active::after,
.color-tab:hover::after { width: 60%; }

.color-tab.active,
.color-tab:hover { color: var(--paper); }

.color-tab-name {
    display: block;
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 400;
    letter-spacing: 0.05em;
    margin-bottom: 6px;
}

.color-tab-desc {
    display: block;
    font-size: 12px;
    letter-spacing: 0.08em;
    opacity: 0.7;
}

.color-system-display {
    position: relative;
    height: 500px;
    overflow: hidden;
}

.color-display-panel {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

.color-display-panel.active {
    opacity: 1;
    visibility: visible;
}

.color-display-content {
    padding: 60px 0;
}

.color-display-label {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 0.3em;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 20px;
    padding: 6px 18px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-transform: uppercase;
}

.color-display-title {
    font-family: var(--font-serif);
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 400;
    color: var(--paper);
    margin: 0 0 28px;
    letter-spacing: 0.04em;
    line-height: 1.3;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}

.color-display-link {
    display: inline-block;
    padding: 14px 36px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    color: var(--paper);
    font-size: 13px;
    letter-spacing: 0.15em;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition-fast);
}

.color-display-link:hover {
    background: var(--gold);
    border-color: var(--gold);
    color: var(--ink);
}

/* ============ 案例沉浸式展示 ============ */
.cases-showcase-section {
    padding: 100px 0;
    background: var(--ink-soft);
}

.cases-showcase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 300px;
    gap: 16px;
    margin-bottom: 50px;
}

.cases-showcase-item {
    position: relative;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    display: block;
}

.cases-showcase-large {
    grid-column: span 2;
    grid-row: span 2;
}

.cases-showcase-img {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transition: transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}

.cases-showcase-item:hover .cases-showcase-img {
    transform: scale(1.05);
}

.cases-showcase-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 32px;
    background: linear-gradient(to top, rgba(18, 17, 16, 0.85) 0%, rgba(18, 17, 16, 0.15) 50%, transparent 75%);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s ease;
}

.cases-showcase-item:hover .cases-showcase-overlay {
    opacity: 1;
    transform: translateY(0);
}

.cases-showcase-large .cases-showcase-overlay {
    opacity: 1;
    transform: translateY(0);
}

.cases-showcase-tag {
    display: inline-block;
    font-size: 11px;
    color: var(--gold-light);
    letter-spacing: 0.15em;
    margin-bottom: 10px;
    align-self: flex-start;
    border-bottom: 1px solid var(--gold);
    padding-bottom: 3px;
}

.cases-showcase-overlay h3 {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 400;
    color: var(--paper);
    margin: 0 0 6px;
    line-height: 1.3;
}

.cases-showcase-overlay p {
    font-size: 13px;
    color: rgba(247, 244, 239, 0.6);
    margin: 0;
}

/* ============ 响应式 ============ */
@media (max-width: 992px) {
    .brand-intro-row,
    .craft-row {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .brand-intro-img,
    .craft-visual { height: 380px; }

    .immersive-item {
        min-height: 55vh;
    }

    .immersive-item > .container {
        min-height: 55vh;
    }

    .immersive-content {
        max-width: 100%;
    }

    .immersive-left,
    .immersive-right {
        margin: 0;
        text-align: center;
    }

    .immersive-num {
        font-size: clamp(60px, 10vw, 120px);
    }

    .immersive-title {
        font-size: clamp(28px, 4vw, 44px);
    }

    .immersive-cta {
        margin: 0 auto;
    }

    .immersive-bg-overlay,
    .immersive-item:nth-child(even) .immersive-bg-overlay {
        background: linear-gradient(180deg,
            rgba(18, 17, 16, 0.5) 0%,
            rgba(18, 17, 16, 0.3) 40%,
            rgba(18, 17, 16, 0.75) 100%);
    }

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

    .color-tab {
        border-bottom: 1px solid rgba(247, 244, 239, 0.08);
    }

    .color-system-display { height: 400px; }

    .cases-showcase-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 260px;
    }

    .cases-showcase-large {
        grid-column: span 2;
        grid-row: span 1;
    }

    .brand-intro-section,
    .craft-section,
    .news-section,
    .cta-section { padding: 70px 0; }

    .showcase-hero-header { padding: 70px 0 40px; }
}

@media (max-width: 992px) {
    .hero-section { min-height: 560px; }

    .product-tabs-showcase {
        min-height: 600px;
    }

    .product-tabs-nav {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        justify-content: flex-start;
    }

    .product-tab {
        padding: 16px 24px;
        font-size: 13px;
    }

    .product-tab-panels {
        min-height: 480px;
    }

    .product-tab-content {
        min-height: 480px;
        padding: 0 6%;
    }

    .product-tab-bg-overlay,
    .product-tab-panel:nth-child(even) .product-tab-bg-overlay {
        background: linear-gradient(180deg,
            rgba(18, 17, 16, 0.4) 0%,
            rgba(18, 17, 16, 0.3) 40%,
            rgba(18, 17, 16, 0.75) 100%);
    }

    .hero-content { padding: 0 20px; }

    .showcase-footer-cta {
        padding: 50px 0 80px;
    }
}

@media (max-width: 768px) {
    .hero-section { min-height: 560px; }
    .hero-content { padding: 0 20px; }

    .product-tabs-showcase {
        min-height: 520px;
    }

    .product-tab {
        padding: 14px 18px;
        gap: 10px;
    }

    .product-tab-num {
        display: none;
    }

    .product-tab-name {
        font-size: 13px;
    }

    .product-tab-panels {
        min-height: 420px;
    }

    .product-tab-content {
        min-height: 420px;
        padding: 0 24px;
    }

    .product-tab-num {
        font-size: clamp(56px, 18vw, 80px);
    }

    .product-tab-title {
        font-size: clamp(22px, 8vw, 32px);
        margin-bottom: 24px;
    }

    .product-tab-cta {
        padding: 12px 24px;
        font-size: 12px;
        letter-spacing: 0.15em;
    }

    .color-tabs-row {
        grid-template-columns: 1fr;
    }

    .color-system-display { height: 340px; }

    .cases-showcase-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 240px;
    }

    .cases-showcase-large {
        grid-column: span 1;
    }

    .brand-intro-section,
    .craft-section,
    .news-section,
    .cta-section { padding: 50px 0; }

    .brand-intro-badge {
        right: 16px;
        width: 90px; height: 90px;
    }

    .brand-intro-year { font-size: 24px; }

    .cta-actions { flex-direction: column; gap: 20px; }

    .craft-stats { grid-template-columns: 1fr 1fr; gap: 20px; }
}

/* ============ 精选产品卡片 ============ */
.showcase-products-wrap {
    padding: 60px 20px 80px;
}

.showcase-products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

@media (max-width: 1100px) {
    .showcase-products-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 800px) {
    .showcase-products-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
}

@media (max-width: 500px) {
    .showcase-products-grid { grid-template-columns: 1fr; }
}

.showcase-product-card {
    display: block;
    background: #fff;
    text-decoration: none;
    color: inherit;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    overflow: hidden;
    border-radius: 4px;
}

.showcase-product-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.showcase-product-img {
    position: relative;
    width: 100%;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    background: #f5f2ec;
}

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

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

.showcase-product-placeholder {
    width: 100%;
    height: 100%;
    background: #f5f2ec;
}

.showcase-product-info {
    padding: 20px 16px 24px;
    text-align: left;
}

.showcase-product-cat {
    display: inline-block;
    font-size: 11px;
    letter-spacing: 0.12em;
    color: var(--gold-dark, #D4BE20);
    text-transform: uppercase;
    margin-bottom: 8px;
    font-weight: 600;
}

.showcase-product-name {
    font-size: 17px;
    font-weight: 600;
    color: var(--ink, #1a1a1a);
    margin: 0 0 6px;
    line-height: 1.4;
}

.showcase-product-sub {
    font-size: 13px;
    color: #888;
    margin: 0;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

@media (max-width: 500px) {
    .showcase-products-wrap { padding: 40px 16px 60px; }
    .showcase-product-info { padding: 14px 12px 18px; }
    .showcase-product-name { font-size: 15px; }
}