/* roulang page: index */
:root {
            --color-deep-brown: #1E1A17;
            --color-warm-brown: #2B241E;
            --color-paper: #F5F0E8;
            --color-paper-warm: #EDE8E0;
            --color-gold: #B8860B;
            --color-gold-dark: #8B6914;
            --color-sienna: #A0522D;
            --color-text-dark: #2B241E;
            --color-text-body: #3A3A3A;
            --color-text-light: #F5F0E8;
            --color-border: #D4C5B2;
            --color-border-light: #E5DCD0;
            --color-muted: #8A8076;
            --font-serif: 'Noto Serif SC', 'Georgia', 'STSong', '宋体', 'SimSun', serif;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', sans-serif;
            --shadow-card: 0 1px 4px rgba(0, 0, 0, 0.06);
            --shadow-subtle: 0 2px 8px rgba(0, 0, 0, 0.05);
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 6px;
            --nav-height: 64px;
            --bottom-tab-height: 60px;
            --container-max: 1200px;
            --container-narrow: 860px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.5rem;
            --spacing-lg: 2.5rem;
            --spacing-xl: 4rem;
            --spacing-2xl: 6rem;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.8;
            color: var(--color-text-body);
            background-color: var(--color-paper);
            min-height: 100vh;
            padding-bottom: 0;
            overflow-x: hidden;
        }

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

        a {
            color: var(--color-gold);
            text-decoration: none;
            transition: color var(--transition-fast), border-color var(--transition-fast);
        }

        a:hover {
            text-decoration: underline;
            color: var(--color-gold-dark);
        }

        a:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        button {
            cursor: pointer;
            font-family: var(--font-sans);
            border: none;
            background: none;
            font-size: inherit;
        }

        button:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 3px;
            border-radius: var(--radius-md);
        }

        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 1rem;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 0.75rem 1rem;
            background: #fff;
            color: var(--color-text-dark);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            width: 100%;
        }

        input:focus,
        textarea:focus,
        select:focus {
            outline: none;
            border-color: var(--color-gold);
            box-shadow: 0 0 0 3px rgba(184, 134, 11, 0.1);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        .container-narrow {
            max-width: var(--container-narrow);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        /* ===== 导航栏 - 桌面端 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background-color: var(--color-deep-brown);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: background-color var(--transition-smooth);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .header-logo {
            font-family: var(--font-serif);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-gold);
            letter-spacing: 0.04em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .header-logo .logo-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: var(--color-gold);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .header-logo:hover {
            text-decoration: none;
            color: var(--color-gold);
            opacity: 0.9;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
        }

        .header-nav a {
            color: var(--color-text-light);
            font-size: 0.95rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            padding: 0.35rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color var(--transition-fast), color var(--transition-fast);
            text-decoration: none;
        }

        .header-nav a:hover,
        .header-nav a.active {
            color: var(--color-gold);
            border-bottom-color: var(--color-gold);
            text-decoration: none;
        }

        .header-nav a.active {
            border-bottom-color: var(--color-gold);
        }

        .hamburger-btn {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            z-index: 1001;
            background: none;
            border: none;
        }

        .hamburger-btn span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-text-light);
            border-radius: 1px;
            transition: all var(--transition-fast);
        }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--color-deep-brown);
            z-index: 999;
            padding: calc(var(--nav-height) + 2rem) 2rem 2rem;
            flex-direction: column;
            gap: 1.5rem;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
        }

        .mobile-menu-overlay.open {
            display: flex;
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-menu-overlay a {
            color: var(--color-text-light);
            font-size: 1.3rem;
            font-family: var(--font-serif);
            letter-spacing: 0.04em;
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .mobile-menu-overlay a:hover {
            color: var(--color-gold);
            text-decoration: none;
        }

        /* ===== 移动端底部Tab导航 ===== */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--bottom-tab-height);
            background: var(--color-deep-brown);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            justify-content: space-around;
            align-items: center;
            padding: 0 0.5rem;
            padding-bottom: env(safe-area-inset-bottom, 0);
        }

        .bottom-tab-nav .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 3px;
            font-size: 0.7rem;
            color: var(--color-muted);
            text-decoration: none;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: color var(--transition-fast);
            min-width: 48px;
            text-align: center;
        }

        .bottom-tab-nav .tab-item svg {
            width: 22px;
            height: 22px;
            flex-shrink: 0;
        }

        .bottom-tab-nav .tab-item.active {
            color: var(--color-gold);
        }

        .bottom-tab-nav .tab-item:hover {
            color: var(--color-gold);
            text-decoration: none;
        }

        /* ===== 主内容区 ===== */
        .main-content {
            padding-top: var(--nav-height);
        }

        section {
            padding: var(--spacing-xl) 0;
            position: relative;
        }

        .section-header {
            text-align: left;
            margin-bottom: var(--spacing-lg);
        }

        .section-header h2 {
            font-family: var(--font-serif);
            font-size: 2.2rem;
            font-weight: 600;
            color: var(--color-text-dark);
            line-height: 1.3;
            margin-bottom: 0.5rem;
            letter-spacing: 0.03em;
        }

        .section-header .section-subtitle {
            font-family: var(--font-sans);
            font-size: 0.95rem;
            color: var(--color-gold);
            letter-spacing: 0.06em;
            font-weight: 500;
        }

        .section-header p {
            color: var(--color-muted);
            font-size: 0.95rem;
            margin-top: 0.3rem;
            max-width: 600px;
        }

        /* ===== Hero首屏 - 拼团转化 ===== */
        .hero-section {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
            padding: var(--spacing-2xl) 0;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(30, 26, 23, 0.85) 0%, rgba(30, 26, 23, 0.55) 40%, rgba(30, 26, 23, 0.3) 70%, rgba(30, 26, 23, 0.5) 100%);
            z-index: 1;
        }

        .hero-section .container {
            position: relative;
            z-index: 2;
        }

        .hero-content {
            max-width: 620px;
        }

        .hero-badge {
            display: inline-block;
            font-family: var(--font-sans);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--color-gold);
            border: 1px solid var(--color-gold);
            padding: 0.4rem 1rem;
            border-radius: 20px;
            margin-bottom: var(--spacing-md);
            background: rgba(184, 134, 11, 0.08);
        }

        .hero-title {
            font-family: var(--font-serif);
            font-size: 3.2rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.04em;
        }

        .hero-subtitle {
            font-family: var(--font-sans);
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: var(--spacing-lg);
            max-width: 500px;
        }

        .hero-group-info {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            margin-bottom: var(--spacing-lg);
            flex-wrap: wrap;
        }

        .group-count {
            display: flex;
            align-items: baseline;
            gap: 0.4rem;
        }

        .group-count .count-number {
            font-family: var(--font-serif);
            font-size: 3.5rem;
            font-weight: 300;
            color: var(--color-gold);
            line-height: 1;
        }

        .group-count .count-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 0.04em;
        }

        .group-progress {
            flex: 1;
            min-width: 150px;
        }

        .group-progress .progress-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 0.4rem;
            letter-spacing: 0.04em;
        }

        .progress-bar-track {
            height: 4px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 2px;
            overflow: hidden;
        }

        .progress-bar-fill {
            height: 100%;
            background: var(--color-gold);
            border-radius: 2px;
            width: 65%;
            transition: width 0.6s ease;
        }

        .hero-cta-group {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 2rem;
            font-size: 0.95rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            text-decoration: none;
            cursor: pointer;
            border: 1px solid transparent;
            white-space: nowrap;
            min-width: 140px;
        }

        .btn-primary {
            background: var(--color-gold);
            color: var(--color-text-light);
            border-color: var(--color-gold);
        }

        .btn-primary:hover {
            background: var(--color-gold-dark);
            border-color: var(--color-gold-dark);
            transform: scale(1.02);
            text-decoration: underline;
            color: var(--color-text-light);
        }

        .btn-outline {
            background: transparent;
            color: var(--color-gold);
            border-color: var(--color-gold);
        }

        .btn-outline:hover {
            background: var(--color-gold);
            color: var(--color-text-light);
            text-decoration: none;
            transform: scale(1.02);
        }

        .btn-sm {
            padding: 0.55rem 1.2rem;
            font-size: 0.85rem;
            min-width: auto;
        }

        .btn-full {
            width: 100%;
        }

        /* ===== 品牌故事板块 ===== */
        .brand-story-section {
            background: #fff;
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }

        .brand-story-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
        }

        .brand-story-image {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            aspect-ratio: 4/3;
        }

        .brand-story-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            filter: brightness(0.92) saturate(0.85);
            transition: filter var(--transition-smooth);
        }

        .brand-story-image:hover img {
            filter: brightness(1) saturate(1);
        }

        .brand-story-text h2 {
            font-family: var(--font-serif);
            font-size: 2rem;
            font-weight: 600;
            color: var(--color-text-dark);
            line-height: 1.3;
            margin-bottom: var(--spacing-md);
            letter-spacing: 0.03em;
        }

        .brand-story-text p {
            color: var(--color-text-body);
            line-height: 1.9;
            margin-bottom: var(--spacing-sm);
            font-size: 1.02rem;
        }

        .brand-story-text .story-highlight {
            display: inline-block;
            padding: 0.3rem 0.8rem;
            background: var(--color-paper);
            border-left: 3px solid var(--color-gold);
            font-style: italic;
            color: var(--color-text-dark);
            margin-top: var(--spacing-sm);
            font-family: var(--font-serif);
            font-size: 1.05rem;
        }

        /* ===== 精选内容卡板块 ===== */
        .featured-section {
            background: var(--color-paper);
        }

        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
            grid-auto-rows: auto;
        }

        .featured-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .featured-card:hover {
            box-shadow: var(--shadow-subtle);
            transform: translateY(-2px);
            border-color: var(--color-border);
        }

        .featured-card.card-large {
            grid-column: span 2;
            grid-row: span 1;
            flex-direction: row;
        }

        .featured-card .card-image {
            flex-shrink: 0;
            overflow: hidden;
            position: relative;
        }

        .featured-card:not(.card-large) .card-image {
            aspect-ratio: 2/3;
        }

        .featured-card.card-large .card-image {
            width: 50%;
            aspect-ratio: 4/3;
        }

        .featured-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            filter: brightness(0.9) saturate(0.8);
            transition: all var(--transition-smooth);
        }

        .featured-card:hover .card-image img {
            filter: brightness(1.05) saturate(1.05);
            transform: scale(1.04);
        }

        .featured-card .card-body {
            padding: var(--spacing-md);
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            flex: 1;
        }

        .featured-card .card-tag {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-gold);
            letter-spacing: 0.06em;
            text-transform: uppercase;
        }

        .featured-card .card-title {
            font-family: var(--font-serif);
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--color-text-dark);
            line-height: 1.4;
            letter-spacing: 0.02em;
        }

        .featured-card .card-desc {
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.6;
            flex: 1;
        }

        .featured-card .card-location {
            font-size: 0.8rem;
            color: var(--color-sienna);
            letter-spacing: 0.05em;
            font-weight: 500;
        }

        .featured-card.card-tall {
            grid-row: span 2;
        }

        .featured-card.card-tall .card-image {
            aspect-ratio: 2/3;
        }

        /* ===== 口碑气泡板块 ===== */
        .testimonials-section {
            background: #fff;
            border-top: 1px solid var(--color-border-light);
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }

        .testimonial-bubble {
            background: var(--color-paper);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-sm);
            padding: var(--spacing-lg);
            position: relative;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
        }

        .testimonial-bubble::before {
            content: '"';
            font-family: var(--font-serif);
            font-size: 4rem;
            color: var(--color-gold);
            opacity: 0.3;
            position: absolute;
            top: 0.5rem;
            left: 1rem;
            line-height: 1;
            pointer-events: none;
        }

        .testimonial-bubble:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-subtle);
            border-color: var(--color-border);
        }

        .testimonial-bubble .testimonial-text {
            font-size: 0.95rem;
            color: var(--color-text-body);
            line-height: 1.8;
            margin-bottom: var(--spacing-md);
            position: relative;
            z-index: 1;
            padding-top: 0.5rem;
        }

        .testimonial-bubble .testimonial-author {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            border-top: 1px solid var(--color-border-light);
            padding-top: var(--spacing-sm);
        }

        .testimonial-bubble .author-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            overflow: hidden;
            flex-shrink: 0;
            border: 2px solid var(--color-gold);
        }

        .testimonial-bubble .author-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .testimonial-bubble .author-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-text-dark);
        }

        .testimonial-bubble .author-label {
            font-size: 0.75rem;
            color: var(--color-muted);
        }

        /* ===== 资讯板块 ===== */
        .news-section {
            background: var(--color-paper);
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: var(--spacing-xl);
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-list-item {
            display: flex;
            align-items: baseline;
            gap: var(--spacing-md);
            padding: var(--spacing-sm) 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            text-decoration: none;
            color: inherit;
        }

        .news-list-item:hover {
            padding-left: 0.5rem;
            border-bottom-color: var(--color-gold);
            text-decoration: none;
            color: inherit;
        }

        .news-list-item .news-date {
            font-family: var(--font-serif);
            font-size: 0.85rem;
            color: var(--color-muted);
            white-space: nowrap;
            flex-shrink: 0;
            min-width: 80px;
            letter-spacing: 0.03em;
        }

        .news-list-item .news-title {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-dark);
            line-height: 1.5;
            transition: color var(--transition-fast);
        }

        .news-list-item:hover .news-title {
            color: var(--color-gold);
        }

        .news-sidebar {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-card);
            height: fit-content;
            position: sticky;
            top: calc(var(--nav-height) + 2rem);
        }

        .news-sidebar h3 {
            font-family: var(--font-serif);
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-text-dark);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.03em;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--color-gold);
        }

        .news-sidebar .sidebar-card {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .news-sidebar .sidebar-card img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-radius: var(--radius-sm);
            filter: brightness(0.9) saturate(0.8);
            border: 1px solid var(--color-border-light);
        }

        .news-sidebar .sidebar-card .sidebar-title {
            font-family: var(--font-serif);
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text-dark);
            line-height: 1.4;
        }

        .news-sidebar .sidebar-card .sidebar-desc {
            font-size: 0.85rem;
            color: var(--color-muted);
            line-height: 1.6;
        }

        .news-sidebar .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-top: var(--spacing-sm);
        }

        .sidebar-tag {
            font-size: 0.75rem;
            padding: 0.3rem 0.7rem;
            background: var(--color-paper);
            border: 1px solid var(--color-border-light);
            border-radius: 20px;
            color: var(--color-text-body);
            cursor: pointer;
            transition: all var(--transition-fast);
            letter-spacing: 0.03em;
        }

        .sidebar-tag:hover {
            background: var(--color-gold);
            color: #fff;
            border-color: var(--color-gold);
        }

        /* ===== 订阅进店板块 ===== */
        .subscribe-section {
            background: var(--color-warm-brown);
            color: var(--color-text-light);
            position: relative;
            overflow: hidden;
        }

        .subscribe-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -60px;
            width: 200px;
            height: 200px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 50%;
            pointer-events: none;
        }

        .subscribe-section .container {
            position: relative;
            z-index: 1;
        }

        .subscribe-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
        }

        .subscribe-info h2 {
            font-family: var(--font-serif);
            font-size: 2rem;
            font-weight: 600;
            color: #fff;
            line-height: 1.3;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.03em;
        }

        .subscribe-info p {
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
            font-size: 0.95rem;
            margin-bottom: var(--spacing-sm);
        }

        .subscribe-benefits {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
            margin-top: var(--spacing-sm);
        }

        .subscribe-benefits li {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .subscribe-benefits li::before {
            content: '—';
            color: var(--color-gold);
            font-weight: bold;
        }

        .subscribe-form-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-sm);
            padding: var(--spacing-lg);
            backdrop-filter: blur(4px);
        }

        .subscribe-form-card h3 {
            font-family: var(--font-serif);
            font-size: 1.2rem;
            color: #fff;
            margin-bottom: var(--spacing-md);
            letter-spacing: 0.03em;
        }

        .subscribe-form-card .form-row {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin-bottom: var(--spacing-sm);
        }

        .subscribe-form-card input {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            padding: 0.75rem 1rem;
            border-radius: var(--radius-sm);
        }

        .subscribe-form-card input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }

        .subscribe-form-card input:focus {
            border-color: var(--color-gold);
            box-shadow: 0 0 0 3px rgba(184, 134, 11, 0.2);
        }

        .subscribe-form-card .privacy-note {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 0.5rem;
            text-align: center;
        }

        /* ===== 平台保障板块 ===== */
        .guarantee-section {
            background: #fff;
            border-top: 1px solid var(--color-border-light);
        }

        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            text-align: center;
        }

        .guarantee-item {
            padding: var(--spacing-lg) var(--spacing-md);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-sm);
            transition: all var(--transition-smooth);
            background: var(--color-paper);
            box-shadow: var(--shadow-card);
        }

        .guarantee-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-subtle);
            border-color: var(--color-gold);
        }

        .guarantee-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto var(--spacing-sm);
            background: var(--color-paper);
            border: 2px solid var(--color-gold);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--color-gold);
        }

        .guarantee-item h3 {
            font-family: var(--font-serif);
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-text-dark);
            margin-bottom: 0.4rem;
            letter-spacing: 0.03em;
        }

        .guarantee-item p {
            font-size: 0.85rem;
            color: var(--color-muted);
            line-height: 1.5;
        }

        /* ===== 时间线板块 ===== */
        .timeline-section {
            background: var(--color-paper);
            border-top: 1px solid var(--color-border-light);
        }

        .timeline {
            position: relative;
            padding-left: 2rem;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--color-border);
        }

        .timeline-item {
            position: relative;
            padding-bottom: var(--spacing-lg);
            padding-left: var(--spacing-lg);
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -2.35rem;
            top: 0.4rem;
            width: 12px;
            height: 12px;
            background: var(--color-gold);
            border-radius: 50%;
            border: 3px solid var(--color-paper);
            box-shadow: 0 0 0 2px var(--color-gold);
            z-index: 2;
        }

        .timeline-item .timeline-date {
            font-family: var(--font-serif);
            font-size: 0.85rem;
            color: var(--color-gold);
            letter-spacing: 0.05em;
            font-weight: 600;
            margin-bottom: 0.3rem;
        }

        .timeline-item h3 {
            font-family: var(--font-serif);
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--color-text-dark);
            margin-bottom: 0.4rem;
            letter-spacing: 0.03em;
        }

        .timeline-item p {
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.7;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-deep-brown);
            color: var(--color-text-light);
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-lg);
        }

        .footer-brand .footer-logo {
            font-family: var(--font-serif);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--color-gold);
            letter-spacing: 0.04em;
            margin-bottom: var(--spacing-sm);
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
        }

        .footer-links h4 {
            font-family: var(--font-serif);
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.03em;
        }

        .footer-links ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
            text-decoration: none;
        }

        .footer-links a:hover {
            color: var(--color-gold);
            text-decoration: none;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: var(--spacing-md);
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ===== 响应式设计 ===== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.6rem;
            }
            .section-header h2 {
                font-size: 1.8rem;
            }
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-card.card-large {
                grid-column: span 2;
                flex-direction: column;
            }
            .featured-card.card-large .card-image {
                width: 100%;
                aspect-ratio: 16/9;
            }
            .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr 280px;
                gap: var(--spacing-lg);
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .subscribe-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .brand-story-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 56px;
            }

            .header-nav {
                display: none;
            }

            .hamburger-btn {
                display: flex;
            }

            .bottom-tab-nav {
                display: flex;
            }

            body {
                padding-bottom: var(--bottom-tab-height);
            }

            .hero-section {
                min-height: 70vh;
                padding: var(--spacing-xl) 0;
            }

            .hero-title {
                font-size: 2rem;
            }

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

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

            .group-count .count-number {
                font-size: 2.5rem;
            }

            .hero-cta-group {
                flex-direction: column;
                gap: 0.8rem;
            }

            .hero-cta-group .btn {
                width: 100%;
            }

            section {
                padding: var(--spacing-lg) 0;
            }

            .section-header h2 {
                font-size: 1.6rem;
            }

            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-sm);
            }

            .featured-card.card-large {
                grid-column: span 2;
                flex-direction: column;
            }

            .featured-card.card-large .card-image {
                width: 100%;
                aspect-ratio: 16/9;
            }

            .featured-card.card-tall {
                grid-row: span 1;
            }

            .featured-card.card-tall .card-image {
                aspect-ratio: 4/3;
            }

            .featured-card:not(.card-large) .card-image {
                aspect-ratio: 4/3;
            }

            .testimonials-grid {
                grid-template-columns: 1fr;
            }

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

            .news-sidebar {
                position: static;
                order: -1;
            }

            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-sm);
            }

            .subscribe-grid {
                grid-template-columns: 1fr;
            }

            .brand-story-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }

            .timeline {
                padding-left: 1.5rem;
            }

            .timeline-item {
                padding-left: var(--spacing-md);
            }

            .timeline-item::before {
                left: -1.85rem;
                width: 10px;
                height: 10px;
            }

            .hero-group-info {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.8rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.7rem;
            }

            .section-header h2 {
                font-size: 1.4rem;
            }

            .featured-grid {
                grid-template-columns: 1fr;
            }

            .featured-card.card-large {
                grid-column: span 1;
            }

            .guarantee-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.6rem;
            }

            .guarantee-item {
                padding: var(--spacing-sm);
            }

            .brand-story-text h2 {
                font-size: 1.5rem;
            }

            .subscribe-info h2 {
                font-size: 1.5rem;
            }

            .hero-badge {
                font-size: 0.75rem;
                padding: 0.3rem 0.7rem;
            }

            .btn {
                padding: 0.7rem 1.5rem;
                font-size: 0.9rem;
                min-width: 120px;
            }
        }