/* ===================== 设计变量与重置 ===================== */
        :root {
            --primary: #8b5e3c;
            --primary-dark: #6f4428;
            --primary-light: #d4b59a;
            --accent: #c9a23c;
            --accent-light: #e8d08a;
            --bg: #faf7f2;
            --bg-dark: #2b1d15;
            --bg-dark-2: #3a2a1e;
            --text: #2b2b2b;
            --text-weak: #7a7069;
            --border: #e9e0d6;
            --white: #ffffff;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 12px rgba(107, 78, 58, .08);
            --shadow-md: 0 8px 32px rgba(107, 78, 58, .12);
            --shadow-lg: 0 18px 50px rgba(107, 78, 58, .18);
            --transition: all .3s ease;
            --font-main: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            color: var(--text);
            background: var(--bg);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
            cursor: pointer;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 84px 0;
        }
        .section-alt {
            background: var(--bg);
        }
        .section-header {
            max-width: 700px;
            margin: 0 auto 52px;
            text-align: center;
        }
        .section-tag {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 50px;
            background: rgba(139, 94, 60, .09);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
        }
        .section-title {
            font-size: clamp(28px, 4vw, 38px);
            line-height: 1.3;
            font-weight: 800;
            margin: 14px 0 12px;
            color: var(--text);
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.8;
        }

        /* ===================== 导航 ===================== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 8px rgba(0, 0, 0, .03);
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 14px 0;
            gap: 10px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .brand-logo .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 14px rgba(139, 94, 60, .28);
        }
        .brand-logo .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .brand-logo .logo-main {
            font-size: 18px;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: .5px;
        }
        .brand-logo .logo-sub {
            font-size: 11px;
            color: var(--text-weak);
            letter-spacing: 1.5px;
            margin-top: 2px;
        }
        .main-nav-wrap {
            display: flex;
            align-items: center;
            gap: 18px;
        }
        .main-nav ul {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .main-nav li a {
            display: inline-block;
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
        }
        .main-nav li a:hover {
            background: rgba(139, 94, 60, .07);
            color: var(--primary);
        }
        .main-nav li.active a {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(139, 94, 60, .3);
        }
        .nav-chips {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            border: 1px solid transparent;
        }
        .chip-hot {
            background: rgba(255, 140, 60, .12);
            color: #e26b1f;
            border-color: rgba(255, 140, 60, .25);
        }
        .chip-live {
            background: rgba(60, 179, 113, .12);
            color: #27ae60;
            border-color: rgba(60, 179, 113, .25);
        }
        .chip-done {
            background: rgba(120, 120, 120, .1);
            color: #8a8a8a;
            border-color: rgba(120, 120, 120, .18);
        }
        .chip-live i {
            animation: pulse 1.6s infinite;
        }
        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: .3;
            }
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 700;
            transition: var(--transition);
            line-height: 1.2;
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            box-shadow: 0 6px 20px rgba(139, 94, 60, .3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(139, 94, 60, .4);
        }
        .btn-outline {
            border: 2px solid var(--primary);
            color: var(--primary);
            background: transparent;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }
        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, .7);
            color: #fff;
            background: transparent;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .15);
            border-color: #fff;
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 6px 18px rgba(0, 0, 0, .1);
        }
        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(0, 0, 0, .14);
        }
        .btn-lg {
            padding: 16px 34px;
            font-size: 16px;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
        }
        .btn-accent {
            background: linear-gradient(135deg, var(--accent), #e8b544);
            color: #fff;
            box-shadow: 0 6px 20px rgba(201, 162, 60, .35);
        }
        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(201, 162, 60, .45);
        }
        .hamburger {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--bg);
            border: 1px solid var(--border);
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--text);
        }

        /* ===================== Hero ===================== */
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            isolation: isolate;
            padding: 100px 0 80px;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(30, 18, 12, .82) 20%, rgba(30, 18, 12, .55) 50%, rgba(30, 18, 12, .35) 100%);
            z-index: -1;
        }
        .hero .container {
            text-align: center;
            color: #fff;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: 50px;
            background: rgba(255, 255, 255, .12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, .2);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.5px;
            color: #f2e8df;
        }
        .hero h1 {
            font-size: clamp(32px, 5.6vw, 52px);
            font-weight: 900;
            line-height: 1.25;
            margin: 22px 0 18px;
            color: #fff;
            text-shadow: 0 4px 24px rgba(0, 0, 0, .3);
        }
        .hero-sub {
            max-width: 620px;
            margin: 0 auto 32px;
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .86);
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
            margin-bottom: 20px;
        }
        .hero-play {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
        }
        .play-btn {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .15);
            backdrop-filter: blur(10px);
            border: 2px solid rgba(255, 255, 255, .6);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: #fff;
            transition: var(--transition);
            box-shadow: 0 8px 30px rgba(0, 0, 0, .3);
        }
        .play-btn:hover {
            background: #fff;
            color: var(--primary);
            transform: scale(1.08);
        }
        .hero-data {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 40px;
            margin-top: 36px;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, .16);
        }
        .hero-data .item {
            text-align: center;
        }
        .hero-data .num {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent-light);
            display: block;
            line-height: 1.2;
        }
        .hero-data .label {
            font-size: 13px;
            color: rgba(255, 255, 255, .7);
            margin-top: 2px;
            letter-spacing: 1px;
        }

        /* ===================== 秒杀商品轨 ===================== */
        .flash-sale {
            background: linear-gradient(180deg, #fff 0%, var(--bg) 100%);
        }
        .sale-track {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding: 8px 4px 24px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .sale-track::-webkit-scrollbar {
            height: 6px;
        }
        .sale-track::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 10px;
        }
        .sale-card {
            flex: 0 0 auto;
            width: 280px;
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            scroll-snap-align: start;
            transition: var(--transition);
        }
        .sale-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .sale-card .card-media {
            position: relative;
            height: 160px;
            background-size: cover;
            background-position: center;
        }
        .sale-card .card-media .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: #e53935;
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
            box-shadow: 0 4px 10px rgba(229, 57, 53, .3);
        }
        .sale-card .card-body {
            padding: 18px;
        }
        .sale-card .card-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .sale-card .card-loca {
            font-size: 12px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 4px;
            margin-bottom: 12px;
        }
        .sale-card .price-row {
            display: flex;
            align-items: baseline;
            gap: 8px;
            margin-bottom: 12px;
        }
        .sale-card .price-now {
            font-size: 22px;
            font-weight: 800;
            color: #e53935;
        }
        .sale-card .price-old {
            font-size: 14px;
            color: #aaa;
            text-decoration: line-through;
        }
        .sale-card .progress {
            background: #f0ebe5;
            border-radius: 10px;
            height: 6px;
            overflow: hidden;
            margin-bottom: 6px;
        }
        .sale-card .progress-bar {
            background: linear-gradient(90deg, var(--accent), #e53935);
            height: 100%;
            border-radius: 10px;
        }
        .sale-card .progress-text {
            font-size: 12px;
            color: var(--text-weak);
            display: flex;
            justify-content: space-between;
        }
        .sale-card .btn {
            width: 100%;
            margin-top: 14px;
        }

        /* ===================== 库存提示 ===================== */
        .inventory {
            background: var(--bg-dark);
            color: #fff;
        }
        .inventory .section-tag {
            background: rgba(255, 255, 255, .1);
            color: var(--accent-light);
        }
        .inventory .section-title {
            color: #fff;
        }
        .inventory .section-desc {
            color: rgba(255, 255, 255, .72);
        }
        .inventory-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }
        .inv-card {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: var(--radius);
            padding: 22px 16px;
            text-align: center;
            backdrop-filter: blur(4px);
            transition: var(--transition);
        }
        .inv-card:hover {
            background: rgba(255, 255, 255, .1);
            transform: translateY(-3px);
        }
        .inv-card .area {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .inv-card .shop {
            font-size: 12px;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 14px;
        }
        .inv-card .status {
            font-size: 26px;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1.2;
        }
        .inv-card .status-tag {
            display: inline-block;
            margin-top: 6px;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: 600;
        }
        .inv-card .status-tag.ok {
            background: rgba(60, 179, 113, .2);
            color: #58d68d;
        }
        .inv-card .status-tag.busy {
            background: rgba(230, 126, 34, .22);
            color: #f0b27a;
        }
        .inv-card .status-tag.full {
            background: rgba(229, 57, 53, .22);
            color: #f1948a;
        }

        /* ===================== 数据指标 ===================== */
        .metrics {
            background: #fff;
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .metric-item {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 30px 20px;
            text-align: center;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .metric-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .metric-item .icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            margin-bottom: 14px;
        }
        .metric-item .num {
            font-size: 36px;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.2;
        }
        .metric-item .label {
            font-size: 14px;
            color: var(--text-weak);
            margin-top: 4px;
        }

        /* ===================== 服务矩阵 ===================== */
        .matrix {
            background: var(--bg);
        }
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .matrix-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .matrix-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
        }
        .matrix-card .card-media {
            height: 145px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .matrix-card .card-media .area-pill {
            position: absolute;
            bottom: 12px;
            left: 12px;
            background: rgba(0, 0, 0, .55);
            backdrop-filter: blur(6px);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 30px;
            letter-spacing: 1px;
        }
        .matrix-card .card-body {
            padding: 18px;
        }
        .matrix-card .card-title {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }
        .matrix-card .card-desc {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .matrix-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .matrix-card .card-tags span {
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 20px;
            background: rgba(139, 94, 60, .07);
            color: var(--primary);
            font-weight: 600;
        }

        /* ===================== 结果对比 ===================== */
        .compare {
            background: #fff;
        }
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .compare-col {
            border-radius: var(--radius-lg);
            padding: 34px;
            border: 1px solid var(--border);
            position: relative;
        }
        .compare-col.old {
            background: #f7f3ee;
        }
        .compare-col.new {
            background: linear-gradient(135deg, rgba(139, 94, 60, .05), rgba(201, 162, 60, .06));
            border-color: rgba(139, 94, 60, .25);
            box-shadow: var(--shadow-md);
        }
        .compare-col .vs-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            padding: 4px 16px;
            font-size: 12px;
            font-weight: 800;
            letter-spacing: 1px;
        }
        .compare-col h3 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .compare-col ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-weak);
            padding: 8px 0;
            border-bottom: 1px dashed rgba(0, 0, 0, .06);
        }
        .compare-col ul li:last-child {
            border-bottom: none;
        }
        .compare-col ul li i {
            margin-top: 3px;
            font-size: 14px;
        }
        .compare-col.old ul li i {
            color: #e57373;
        }
        .compare-col.new ul li i {
            color: #2ecc71;
        }

        /* ===================== 资讯 ===================== */
        .news {
            background: var(--bg);
        }
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 32px;
            align-items: start;
        }
        .news-list .news-item {
            display: flex;
            gap: 16px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .news-list .news-item:last-child {
            border-bottom: none;
        }
        .news-list .news-date {
            flex-shrink: 0;
            width: 64px;
            text-align: center;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 10px 4px;
            height: fit-content;
        }
        .news-list .news-date .day {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .news-list .news-date .month {
            font-size: 12px;
            color: var(--text-weak);
            text-transform: uppercase;
        }
        .news-list .news-link {
            flex: 1;
        }
        .news-list .news-link:hover h4 {
            color: var(--primary);
        }
        .news-list .news-link h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            transition: var(--transition);
            line-height: 1.5;
            margin-bottom: 4px;
        }
        .news-list .news-link p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.6;
        }
        .news-sidebar {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }
        .news-sidebar h3 {
            font-size: 17px;
            font-weight: 800;
            margin-bottom: 14px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text);
        }
        .news-sidebar .side-item {
            display: flex;
            gap: 12px;
            align-items: center;
            padding: 8px 0;
            border-bottom: 1px dashed rgba(0, 0, 0, .06);
            transition: var(--transition);
        }
        .news-sidebar .side-item:last-child {
            border-bottom: none;
        }
        .news-sidebar .side-item:hover {
            padding-left: 6px;
        }
        .news-sidebar .side-item .num {
            font-size: 20px;
            font-weight: 900;
            color: var(--primary-light);
            min-width: 26px;
        }
        .news-sidebar .side-item .txt {
            font-size: 13px;
            color: var(--text);
            font-weight: 600;
            line-height: 1.4;
        }

        /* ===================== 抢购按钮组 ===================== */
        .cta-purchase {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-2) 100%);
            color: #fff;
            text-align: center;
        }
        .cta-purchase .section-tag {
            background: rgba(255, 255, 255, .1);
            color: var(--accent-light);
        }
        .cta-purchase .section-title {
            color: #fff;
        }
        .cta-purchase .section-desc {
            color: rgba(255, 255, 255, .72);
        }
        .cta-purchase .cta-btns {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
            margin-top: 30px;
        }
        .cta-purchase .cta-note {
            margin-top: 18px;
            font-size: 13px;
            color: rgba(255, 255, 255, .6);
        }

        /* ===================== FAQ ===================== */
        .faq {
            background: #fff;
        }
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            background: var(--bg);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-item summary {
            padding: 18px 22px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            list-style: none;
            background: #fff;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(139, 94, 60, .1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--primary);
            flex-shrink: 0;
            transition: var(--transition);
        }
        .faq-item[open] summary .icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-item .answer {
            padding: 0 22px 20px;
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.8;
            background: var(--bg);
        }

        /* ===================== 页脚 ===================== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, .75);
            padding: 60px 0 24px;
        }
        .footer-top {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 30px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-brand .logo-main {
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 6px;
        }
        .footer-brand .logo-sub {
            font-size: 12px;
            color: rgba(255, 255, 255, .55);
            letter-spacing: 1px;
        }
        .footer-brand p {
            font-size: 13px;
            max-width: 320px;
            color: rgba(255, 255, 255, .65);
            line-height: 1.7;
            margin-top: 14px;
        }
        .footer-links {
            display: flex;
            gap: 50px;
            flex-wrap: wrap;
        }
        .footer-links h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-links ul li {
            margin-bottom: 8px;
        }
        .footer-links ul li a {
            font-size: 13px;
            color: rgba(255, 255, 255, .65);
            transition: var(--transition);
        }
        .footer-links ul li a:hover {
            color: var(--accent-light);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding-top: 20px;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
            gap: 10px;
        }

        /* ===================== 模态框 ===================== */
        .modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, .75);
            z-index: 200;
            display: none;
            align-items: center;
            justify-content: center;
            padding: 20px;
            backdrop-filter: blur(6px);
        }
        .modal-overlay.active {
            display: flex;
        }
        .modal-box {
            background: #fff;
            border-radius: var(--radius-lg);
            max-width: 640px;
            width: 100%;
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow-lg);
        }
        .modal-box img {
            max-height: 340px;
            width: 100%;
            object-fit: cover;
        }
        .modal-box .modal-content {
            padding: 26px;
        }
        .modal-box h3 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 8px;
            color: var(--text);
        }
        .modal-box p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.8;
        }
        .modal-close {
            position: absolute;
            top: 14px;
            right: 14px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(0, 0, 0, .55);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            cursor: pointer;
            z-index: 2;
            transition: var(--transition);
        }
        .modal-close:hover {
            background: var(--primary);
        }

        /* ===================== 响应式 ===================== */
        @media screen and (max-width: 1024px) {
            .inventory-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .matrix-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                order: 2;
            }
            .compare-grid {
                grid-template-columns: 1fr;
            }
        }
        @media screen and (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            .container {
                padding: 0 18px;
            }
            .site-header .header-inner {
                flex-wrap: wrap;
            }
            .main-nav-wrap {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 10px 0;
                gap: 10px;
            }
            .main-nav-wrap.open {
                display: flex;
                animation: fadeIn .3s ease;
            }
            .main-nav ul {
                flex-direction: column;
                width: 100%;
            }
            .main-nav li a {
                width: 100%;
                text-align: left;
                padding: 10px 16px;
            }
            .nav-chips {
                width: 100%;
                padding-left: 16px;
            }
            .header-cta .btn-sm {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .hero {
                min-height: auto;
                padding: 80px 0 60px;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero-data {
                gap: 20px;
            }
            .hero-data .num {
                font-size: 22px;
            }
            .inventory-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .matrix-grid {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
            }
            .sale-card {
                width: 240px;
            }
            .compare-col {
                padding: 26px 20px;
            }
            .footer-top {
                flex-direction: column;
                gap: 24px;
            }
            .footer-links {
                gap: 30px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media screen and (max-width: 520px) {
            .inventory-grid {
                grid-template-columns: 2fr 2fr;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .btn-lg {
                padding: 14px 24px;
                font-size: 15px;
            }
            .brand-logo .logo-main {
                font-size: 16px;
            }
            .section-title {
                font-size: 24px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-actions .btn {
                width: 100%;
                max-width: 260px;
            }
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }