:root {
        --main: #ea580c;
        --accent: #d97706;
        --bg: #fffbf5;
        --text: #1c1917;
        --border: 2px solid #1c1917;
        --shadow: 8px 8px 0 rgba(28, 25, 23, 0.9);
    }
    * { border-radius: 0 !important; }
    body {
        background-color: var(--bg);
        color: var(--text);
        font-family: 'Inter', -apple-system, '思源黑体', 'Source Han Sans SC', 'Noto Sans SC', sans-serif;
        font-weight: 400;
        line-height: 1.75;
        letter-spacing: 0.02em;
        overflow-x: hidden;
    }
    h1, h2, h3, h4, .font-serif {
        font-family: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', serif;
        font-weight: 700;
        letter-spacing: 0.02em;
    }
    .navbar, .footer, .side-col {
        background: var(--bg);
        border-bottom: 2px solid var(--text);
    }
    .navbar-brand, .nav-link {
        font-weight: 600;
        color: var(--text) !important;
    }
    .navbar-toggler { border: 2px solid var(--text); }
    .navbar-toggler-icon { filter: invert(10%); }

    .side-col {
        border-right: 2px solid var(--text);
        min-height: calc(100vh - 70px);
        padding-top: 30px;
        position: sticky;
        top: 0;
        height: 100vh;
        overflow-y: auto;
    }
    .side-col .side-item {
        display: block;
        padding: 14px 20px;
        font-weight: 600;
        color: var(--text);
        text-decoration: none;
        border-bottom: 2px dashed rgba(28,25,23,0.4);
        transition: all 0.2s;
        margin: 0 12px;
        font-size: 1.05rem;
    }
    .side-col .side-item i { width: 28px; color: var(--main); }
    .side-col .side-item:hover { background: #fce9d8; margin-left: 18px; }
    .active-side { background: var(--main); color: #fff !important; }

    .hero-section {
        background: linear-gradient(135deg, #fce8d5, #fbd6a7);
        border-bottom: var(--border);
        padding: 70px 0 80px;
        position: relative;
        overflow: hidden;
        box-shadow: inset 0 -10px 20px rgba(234,88,12,0.15);
    }
    .hero-section::before {
        content: '';
        position: absolute;
        top: -80px; right: -40px;
        width: 400px; height: 400px;
        background: radial-gradient(circle, rgba(234,88,12,0.25) 0%, transparent 70%);
        filter: blur(50px);
        z-index: 0;
        animation: floatGlow 6s infinite alternate;
    }
    .hero-section::after {
        content: '';
        position: absolute;
        bottom: -50px; left: 20%;
        width: 300px; height: 300px;
        background: radial-gradient(circle, rgba(217,119,6,0.3) 0%, transparent 70%);
        filter: blur(60px);
        z-index: 0;
    }
    @keyframes floatGlow { from { transform: translateY(0);} to { transform: translateY(20px);} }
    .hero-inner { position: relative; z-index: 2; }
    .hero-title {
        font-size: clamp(2.5rem, 6vw, 4.5rem);
        font-weight: 900;
        line-height: 1.1;
        color: #1c1917;
        text-shadow: 4px 4px 0 #fecaca;
    }
    .hero-sub {
        font-size: 1.3rem;
        font-weight: 400;
        max-width: 640px;
        color: #292524;
    }
    .btn-hard {
        border: 2px solid #1c1917;
        padding: 12px 32px;
        font-weight: 700;
        font-size: 1.1rem;
        box-shadow: 5px 5px 0 #1c1917;
        transition: all 0.1s ease;
        background: #fff;
        color: #1c1917;
    }
    .btn-hard:hover {
        transform: translate(3px, 3px);
        box-shadow: 2px 2px 0 #1c1917;
        background: var(--main);
        color: #fff;
    }
    .btn-hard.btn-primary-custom {
        background: var(--main);
        color: #fff;
        border: 2px solid #1c1917;
    }
    .btn-hard.btn-primary-custom:hover { background: var(--accent); color: #000; }

    .section-title {
        font-size: 2.2rem;
        font-weight: 800;
        border-bottom: 4px solid var(--main);
        display: inline-block;
        padding-bottom: 8px;
        margin-bottom: 32px;
    }
    .card-hard {
        background: #fff;
        border: 2px solid #1c1917;
        box-shadow: 6px 6px 0 rgba(28,25,23,0.8);
        transition: all 0.25s ease;
        overflow: hidden;
    }
    .card-hard:hover {
        transform: translateY(-6px);
        box-shadow: 12px 12px 0 rgba(28,25,23,0.9);
    }
    .card-hard img {
        width: 100%;
        aspect-ratio: 3/4;
        object-fit: cover;
        border-bottom: 2px solid #1c1917;
        background: #e7d6c2;
        opacity: 0;
        transition: opacity 0.4s;
    }
    .card-hard img.loaded { opacity: 1; }
    .masonry-grid {
        column-count: 4;
        column-gap: 24px;
    }
    .masonry-grid .card-hard {
        break-inside: avoid;
        margin-bottom: 24px;
    }
    @media (max-width: 1400px) { .masonry-grid { column-count: 3; } }
    @media (max-width: 992px) { .masonry-grid { column-count: 2; } }
    @media (max-width: 576px) { .masonry-grid { column-count: 1; } }

    .timeline {
        position: relative;
        padding-left: 30px;
        border-left: 3px solid var(--main);
        margin-left: 12px;
    }
    .timeline-item {
        position: relative;
        padding: 20px 0 20px 30px;
    }
    .timeline-item::before {
        content: "";
        position: absolute;
        left: -10px;
        top: 28px;
        width: 16px;
        height: 16px;
        background: var(--main);
        border: 2px solid var(--text);
        transform: rotate(45deg);
    }
    .tab-content .tab-pane { padding: 20px 0; }

    .faq-item {
        border: 2px solid var(--text);
        padding: 20px 24px;
        margin-bottom: 20px;
        background: #fff;
        box-shadow: 4px 4px 0 var(--text);
    }
    .footer {
        border-top: 2px solid var(--text);
        border-bottom: none;
        margin-top: 60px;
        padding: 40px 0 20px;
    }
    .friend-links {
        border: 2px dashed var(--text);
        padding: 20px;
        background: #fbeedb;
    }
    .parallax-bg {
        background-attachment: fixed;
        background-position: center;
        background-repeat: no-repeat;
        background-size: cover;
    }
    .lazy-img {
        background: linear-gradient(135deg, #f6e3ce, #f1d3b4);
    }

/* --- 子页面追加 --- */
/* 关于我们页面专属样式 */
        .about-hero {
            padding: 80px 0 60px;
            position: relative;
        }
.about-hero h1 {
            font-size: 3rem;
            font-weight: 900;
            color: var(--text);
            margin-bottom: 20px;
            display: inline-block;
            position: relative;
        }
.about-hero h1::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 100%;
            height: 6px;
            background: var(--main);
            border-radius: 3px;
        }
.about-section {
            padding: 50px 0;
            border-bottom: var(--border);
        }
.about-section:last-of-type {
            border-bottom: none;
        }
.about-card {
            background: var(--bg);
            border: var(--border);
            box-shadow: var(--shadow);
            padding: 30px;
            margin-bottom: 30px;
            transition: transform 0.3s ease;
        }
.about-card:hover {
            transform: translate(-2px, -2px);
        }
.about-card h3 {
            color: var(--main);
            font-weight: 800;
            margin-bottom: 15px;
            font-size: 1.4rem;
        }
.about-card p {
            color: var(--text);
            line-height: 1.8;
            margin-bottom: 12px;
        }
.about-stats {
            background: var(--text);
            color: var(--bg);
            padding: 40px 0;
            margin: 40px 0;
        }
.stat-item {
            text-align: center;
        }
.stat-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--main);
        }
.stat-label {
            font-size: 0.9rem;
            color: var(--bg);
            opacity: 0.8;
            margin-top: 5px;
        }
.about-quote {
            background: var(--bg);
            border: var(--border);
            border-left: 6px solid var(--main);
            padding: 25px 30px;
            margin: 30px 0;
            font-style: italic;
            font-size: 1.1rem;
            line-height: 1.8;
        }
.about-quote .author {
            display: block;
            margin-top: 15px;
            font-style: normal;
            font-weight: 700;
            color: var(--main);
        }
.about-timeline {
            position: relative;
            padding-left: 30px;
            margin: 30px 0;
        }
.about-timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--main);
        }
.about-timeline-item {
            position: relative;
            margin-bottom: 30px;
        }
.about-timeline-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 5px;
            width: 15px;
            height: 15px;
            background: var(--accent);
            border: 3px solid var(--text);
            border-radius: 50%;
        }
.about-timeline-item .year {
            font-weight: 900;
            color: var(--main);
            font-size: 1.2rem;
            display: block;
            margin-bottom: 5px;
        }
.about-timeline-item .desc {
            color: var(--text);
            line-height: 1.7;
        }
.feature-icon {
            font-size: 2rem;
            color: var(--main);
            margin-bottom: 15px;
        }
.about-badge {
            display: inline-block;
            background: var(--main);
            color: #fff;
            padding: 3px 12px;
            font-size: 0.8rem;
            font-weight: 700;
            border-radius: 20px;
            margin-right: 8px;
            margin-bottom: 8px;
        }
.about-hero h1 {
                font-size: 2rem;
            }
.stat-number {
                font-size: 1.8rem;
            }
.about-card {
                padding: 20px;
            }

/* --- 子页面追加 --- */
/* 本页专属少量样式 */
        .legal-section { margin-bottom: 2.5rem; }
.legal-section h2 { font-size: 1.6rem; font-weight: 800; margin-bottom: 1rem; color: var(--main); border-left: 4px solid var(--main); padding-left: 1rem; }
.legal-section h3 { font-size: 1.2rem; font-weight: 700; margin-top: 1.5rem; margin-bottom: 0.8rem; }
.legal-section p { margin-bottom: 0.8rem; line-height: 1.8; }
.legal-section ul, .legal-section ol { margin-left: 1.5rem; margin-bottom: 1rem; }
.legal-section li { margin-bottom: 0.4rem; line-height: 1.8; }
.legal-date { font-size: 0.9rem; color: var(--text); opacity: 0.7; margin-bottom: 2rem; }
.important-note { border: 2px solid var(--main); background: rgba(234, 88, 12, 0.08); padding: 1rem 1.5rem; border-radius: 8px; margin: 1.5rem 0; }