:root {
            --main: #b45309;
            --accent: #ca8a04;
            --bg: #fefce8;
            --text: #451a03;
            --radius: 0px;
            --border-w: 3px;
            --shadow: 8px 8px 0 rgba(180, 83, 9, 0.2);
            --font-head: 'Inter', sans-serif;
        }

        * { border-radius: var(--radius) !important; }

        body {
            background-color: var(--bg);
            color: var(--text);
            font-family: 'Inter', sans-serif;
            line-height: 1.8;
            overflow-x: hidden;
            position: relative;
        }

        /* 渐变光晕 / 模糊光斑 */
        body::before {
            content: "";
            position: fixed;
            top: -10%;
            left: -10%;
            width: 60vw;
            height: 60vh;
            background: radial-gradient(circle, rgba(202,138,4,0.15) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
            filter: blur(40px);
        }
        body::after {
            content: "";
            position: fixed;
            bottom: -5%;
            right: -5%;
            width: 50vw;
            height: 50vh;
            background: radial-gradient(circle, rgba(180,83,9,0.12) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
            filter: blur(30px);
        }

        /* 滚动进度条 */
        #progress-bar {
            position: fixed;
            top: 0;
            left: 0;
            height: 5px;
            width: 0%;
            background: linear-gradient(90deg, var(--main), var(--accent));
            z-index: 9999;
            transition: width 0.1s linear;
            box-shadow: 0 2px 6px rgba(180,83,9,0.4);
        }

        .navbar {
            background-color: var(--bg);
            border-bottom: var(--border-w) solid var(--text);
            padding: 0.8rem 1rem;
            box-shadow: var(--shadow);
            margin-bottom: 1rem;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .navbar-brand {
            font-weight: 900;
            font-size: 2rem;
            letter-spacing: 2px;
            color: var(--text);
            text-decoration: none;
            text-transform: uppercase;
            border: none;
        }
        .navbar-brand i {
            color: var(--main);
            margin-right: 10px;
        }
        .navbar-nav .nav-link {
            color: var(--text);
            font-weight: 700;
            font-size: 1.1rem;
            margin-left: 1.2rem;
            border-bottom: 3px solid transparent;
            padding-bottom: 5px;
        }
        .navbar-nav .nav-link:hover {
            border-bottom-color: var(--main);
            color: var(--main);
        }
        .navbar-toggler {
            border: 3px solid var(--text);
            border-radius: 0 !important;
            color: var(--text);
        }

        .hero-section {
            padding: 4rem 0 5rem;
            text-align: center;
            background: transparent;
            position: relative;
            z-index: 1;
        }
        .hero-title {
            font-weight: 900;
            font-size: 4.2rem;
            line-height: 1.1;
            letter-spacing: -2px;
            color: var(--text);
            max-width: 900px;
            margin: 0 auto 1.5rem;
            text-shadow: 6px 6px 0 rgba(202,138,4,0.2);
        }
        .hero-sub {
            font-size: 1.5rem;
            font-weight: 400;
            color: var(--main);
            max-width: 650px;
            margin: 0 auto 2.5rem;
        }
        .btn-custom {
            background-color: var(--text);
            color: var(--bg);
            border: 3px solid var(--text);
            padding: 1rem 2.5rem;
            font-weight: 700;
            font-size: 1.2rem;
            box-shadow: 6px 6px 0 var(--main);
            transition: all 0.2s ease;
            margin: 0 0.8rem;
            display: inline-block;
            text-decoration: none;
        }
        .btn-custom:hover {
            background-color: var(--main);
            color: white;
            transform: translate(-3px, -3px);
            box-shadow: 10px 10px 0 var(--accent);
        }
        .btn-outline {
            background-color: transparent;
            border-color: var(--main);
            color: var(--main);
            box-shadow: 6px 6px 0 var(--accent);
        }
        .btn-outline:hover {
            background-color: var(--accent);
            color: var(--text);
            border-color: var(--accent);
        }

        .feature-card {
            background: white;
            border: var(--border-w) solid var(--text);
            box-shadow: var(--shadow);
            padding: 2rem 1.8rem;
            transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
            height: 100%;
            opacity: 0;
            transform: translateY(30px);
            will-change: transform, opacity;
        }
        .feature-card.visible {
            opacity: 1;
            transform: translateY(0);
        }
        .feature-card:hover {
            transform: translateY(-8px) !important;
            box-shadow: 14px 14px 0 rgba(180,83,9,0.35);
        }
        .feature-icon {
            font-size: 2.8rem;
            color: var(--main);
            margin-bottom: 1.2rem;
            display: inline-block;
        }
        .feature-card h5 {
            font-weight: 800;
            margin-bottom: 1rem;
            font-size: 1.6rem;
        }
        .feature-card p {
            color: #5c3a1e;
        }

        .accordion-button {
            background-color: #fff;
            border: 3px solid var(--text);
            box-shadow: 4px 4px 0 var(--accent);
            color: var(--text);
            font-weight: 700;
            padding: 1.5rem;
            font-size: 1.2rem;
            transition: none;
        }
        .accordion-button:not(.collapsed) {
            background-color: var(--main);
            color: white;
            box-shadow: none;
            border-color: var(--text);
        }
        .accordion-button:focus {
            box-shadow: 4px 4px 0 var(--accent);
            border-color: var(--text);
        }
        .accordion-body {
            background-color: #fffdf5;
            border: 3px solid var(--text);
            border-top: none;
            padding: 2rem;
            font-size: 1.1rem;
        }
        .accordion-item {
            margin-bottom: 1.5rem;
            background: transparent;
            border: none;
        }

        .section-title {
            font-size: 2.8rem;
            font-weight: 900;
            border-bottom: 6px solid var(--text);
            display: inline-block;
            padding-bottom: 0.5rem;
            margin-bottom: 3.5rem;
            letter-spacing: -1px;
        }

        .footer-links {
            background: #fff;
            border-top: 4px solid var(--text);
            border-bottom: 4px solid var(--text);
            padding: 2rem 0;
            margin-top: 4rem;
        }

        .footer-link-item {
            display: inline-block;
            margin: 0 1.2rem;
            color: var(--text);
            font-weight: 600;
            text-decoration: none;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
        }
        .footer-link-item:hover {
            border-bottom-color: var(--main);
            color: var(--main);
        }

        footer {
            background-color: var(--bg);
            color: var(--text);
            padding: 2.5rem 0;
            border-top: 3px solid var(--text);
            font-weight: 500;
        }

        .card-stagger {
            transition-delay: calc(var(--i, 0) * 120ms);
        }

        /* 等宽数据字体 */
        .mono-data {
            font-family: 'Courier New', monospace;
            font-weight: 700;
            background: #f5e9d0;
            padding: 2px 8px;
            border: 2px solid var(--main);
        }

        @media (max-width: 768px) {
            .hero-title { font-size: 2.8rem; }
            .navbar-nav .nav-link { margin-left: 0; margin-top: 0.5rem; }
            .btn-custom { margin: 0.8rem 0.5rem; display: block; width: 100%; }
        }

        /* 自定义小工具 */
        .long-article {
            max-width: 800px;
            margin: 0 auto;
            font-size: 1.1rem;
        }
        .long-article h3 {
            font-weight: 900;
            font-size: 2rem;
            margin: 2.5rem 0 1rem;
            border-left: 8px solid var(--main);
            padding-left: 1.2rem;
        }

/* --- 子页面追加 --- */
/* 本页专属补充样式 */
        .about-hero { background: linear-gradient(135deg, var(--bg) 0%, #fef3c7 100%); }
.timeline-item { border-left: 3px solid var(--main); padding-left: 1.5rem; position: relative; }
.timeline-item::before { content: ''; position: absolute; left: -8px; top: 8px; width: 13px; height: 13px; background: var(--main); transform: rotate(45deg); }
.value-card { background: var(--bg); border: var(--border-w) solid var(--main); padding: 2rem; margin-bottom: 1.5rem; transition: all .3s ease; }
.value-card:hover { transform: translate(-4px, -4px); box-shadow: var(--shadow); }
.value-card i { color: var(--main); font-size: 2.5rem; margin-bottom: 1rem; }
.stat-number { font-size: 2.8rem; font-weight: 900; color: var(--main); line-height: 1; }
.about-highlight { background: var(--main); color: #fff; padding: 0.3rem 1rem; display: inline-block; font-weight: 600; letter-spacing: 0.5px; }
.divider-custom { height: 3px; width: 80px; background: var(--accent); margin: 1.5rem 0; }
.quote-block { border-left: 5px solid var(--accent); background: rgba(202, 138, 4, 0.08); padding: 1.5rem 2rem; margin: 2rem 0; }
.quote-block p { margin-bottom: 0.5rem; font-style: italic; font-size: 1.1rem; }

/* --- 子页面追加 --- */
/* 页面特有微调 */
        .legal-container { max-width: 900px; margin: 0 auto; }
.legal-section { margin-bottom: 3.5rem; }
.legal-section h2 { 
            font-size: 1.5rem; 
            font-weight: 800; 
            margin-bottom: 1.5rem;
            padding-bottom: 0.75rem;
            border-bottom: 3px solid var(--main);
            display: inline-block;
        }
.legal-section p, .legal-section li { 
            font-size: 0.95rem; 
            line-height: 1.8; 
            color: var(--text);
            opacity: 0.92;
        }
.legal-section ul { padding-left: 1.5rem; }
.legal-section li { margin-bottom: 0.6rem; }
.highlight-box {
            background: rgba(180, 83, 9, 0.08);
            border-left: 4px solid var(--main);
            padding: 1.2rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
.highlight-box p { margin-bottom: 0; }
.date-line {
            font-size: 0.85rem;
            color: var(--text);
            opacity: 0.6;
            margin-top: 2.5rem;
            text-align: right;
        }
/* 高亮当前导航 */
        .navbar .nav-link.active {
            color: var(--main);
            font-weight: 700;
            position: relative;
        }
.navbar .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--main);
        }

/* --- 子页面追加 --- */
/* 本页专属样式：隐私政策排版 */
        .privacy-hero {
            background: var(--bg);
            padding: 4rem 0 2rem;
            border-bottom: var(--border-w) solid var(--main);
        }
.privacy-hero h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 0.5rem;
        }
.privacy-hero .last-updated {
            font-size: 0.9rem;
            color: var(--main);
            font-weight: 600;
            margin-top: 0.5rem;
        }
.privacy-section {
            background: var(--bg);
            padding: 3rem 0;
        }
.privacy-section .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text);
            border-bottom: 3px solid var(--accent);
            padding-bottom: 0.6rem;
            margin-bottom: 1.5rem;
            display: inline-block;
        }
.privacy-card {
            background: rgba(255,255,255,0.6);
            border: var(--border-w) solid var(--main);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 1.8rem;
            margin-bottom: 2rem;
            transition: transform 0.2s ease;
        }
.privacy-card:hover {
            transform: translateY(-3px);
        }
.privacy-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--main);
            margin-bottom: 1rem;
        }
.privacy-card p, .privacy-card li {
            color: var(--text);
            font-size: 0.95rem;
            line-height: 1.7;
        }
.privacy-card ul {
            padding-left: 1.2rem;
        }
.privacy-card li {
            margin-bottom: 0.5rem;
        }
.privacy-note {
            background: rgba(202, 138, 4, 0.08);
            border-left: 4px solid var(--accent);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            font-style: italic;
        }
.contact-highlight {
            background: var(--main);
            color: #fff;
            padding: 0.2rem 0.8rem;
            border-radius: 3px;
            font-weight: 600;
        }
.privacy-hero h1 { font-size: 1.8rem; }
.privacy-card { padding: 1.2rem; }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.accordion-header { background:transparent !important; }