:root {
            --main: #ea580c;
            --accent: #d97706;
            --bg: #fffbf5;
            --ink: #1c1917;
            --card-shadow: 0 12px 30px rgba(234, 88, 12, 0.18), 0 4px 10px rgba(0,0,0,0.08);
            --deep-shadow: 0 20px 35px -5px rgba(215, 119, 6, 0.3), 0 8px 18px rgba(0,0,0,0.12);
        }
        * { box-sizing: border-box; }
        body {
            background-color: var(--bg);
            color: var(--ink);
            font-family: 'Noto Sans SC', 'Inter', sans-serif;
            overflow-x: hidden;
            position: relative;
        }
        h1, h2, h3, .display-3, .section-title {
            font-family: 'Noto Serif SC', serif;
            font-weight: 900;
            letter-spacing: 0.02em;
        }
        /* 几何色块背景 */
        .geo-bg::before {
            content: "";
            position: fixed;
            top: 0; left: 0; width: 100%; height: 100%;
            background: 
                radial-gradient(circle at 10% 20%, rgba(234, 88, 12, 0.03) 0%, transparent 15%),
                radial-gradient(circle at 90% 75%, rgba(217, 119, 6, 0.05) 0%, transparent 25%),
                linear-gradient(120deg, rgba(234, 88, 12, 0.02) 1px, transparent 1px),
                linear-gradient(60deg, rgba(215, 119, 6, 0.02) 1px, transparent 1px);
            background-size: 80px 80px, 60px 60px, 100px 100px, 120px 120px;
            pointer-events: none;
            z-index: -1;
        }
        /* 拟物厚重元素 */
        .neumorph {
            background: var(--bg);
            border-radius: 36px;
            box-shadow: var(--deep-shadow), inset 0 1px 4px rgba(255,255,255,0.8);
            border: 1px solid rgba(234, 88, 12, 0.15);
        }
        /* 侧栏布局 */
        .sidebar-layout {
            display: flex;
            gap: 2rem;
            max-width: 1500px;
            margin: 0 auto;
            padding: 1.5rem 2rem 4rem;
        }
        .left-rail {
            flex: 0 0 240px;
            position: sticky;
            top: 1rem;
            height: fit-content;
            background: rgba(255, 251, 245, 0.75);
            backdrop-filter: blur(6px);
            border-radius: 28px;
            box-shadow: 0 6px 22px rgba(120, 60, 10, 0.12);
            padding: 1.8rem 0.8rem;
            border: 1px solid rgba(215, 119, 6, 0.2);
        }
        .left-rail .brand-logo {
            font-family: 'Noto Serif SC', serif;
            font-weight: 900;
            font-size: 1.8rem;
            color: var(--main);
            text-shadow: 2px 2px 0 rgba(215,119,6,0.2);
            padding-bottom: 1rem;
            border-bottom: 2px dashed rgba(234, 88, 12, 0.2);
            margin-bottom: 1.2rem;
        }
        .rail-nav a {
            display: block;
            padding: 0.8rem 1rem;
            margin: 0.3rem 0;
            color: var(--ink);
            font-weight: 500;
            border-radius: 40px;
            transition: 0.25s;
            text-decoration: none;
            font-size: 1rem;
        }
        .rail-nav a i { margin-right: 0.6rem; color: var(--accent); }
        .rail-nav a:hover, .rail-nav a.active {
            background: var(--main);
            color: white;
            box-shadow: 0 8px 14px rgba(234, 88, 12, 0.3);
            transform: translateX(4px);
        }
        .rail-nav a:hover i { color: white; }
        
        .right-stage { flex: 1; min-width: 0; }
        
        /* 顶部导航 (移动端折叠) */
        .top-nav-mobile {
            display: none;
            background: var(--bg);
            padding: 0.8rem 1.5rem;
            box-shadow: 0 4px 12px rgba(234, 88, 12, 0.1);
            align-items: center;
            justify-content: space-between;
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .top-nav-mobile .brand-mini {
            font-family: 'Noto Serif SC', serif;
            font-weight: 900;
            color: var(--main);
            font-size: 1.5rem;
        }
        @media (max-width: 992px) {
            .sidebar-layout { flex-direction: column; padding: 1rem 1rem 3rem; }
            .left-rail { display: none; }
            .top-nav-mobile { display: flex; }
            .mobile-nav-collapse { display: none; width: 100%; }
        }
        /* 卡片瀑布流 */
        .masonry-cards {
            columns: 3 320px;
            column-gap: 1.5rem;
            margin-top: 1rem;
        }
        .card-item {
            break-inside: avoid;
            margin-bottom: 1.8rem;
            background: white;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
            transition: 0.3s;
            border: 1px solid rgba(234, 88, 12, 0.08);
        }
        .card-item:hover { transform: translateY(-5px); box-shadow: 0 25px 45px -12px rgba(234, 88, 12, 0.35); }
        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 3/4;
            background: #ddd;
        }
        .card-img-wrap img {
            width: 100%; height: 100%; object-fit: cover;
            transition: transform 0.45s cubic-bezier(0.2, 0.8, 0.2, 1);
        }
        .card-item:hover .card-img-wrap img { transform: scale(1.08); }
        .card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 60%);
            opacity: 0;
            transition: 0.3s;
            display: flex;
            align-items: flex-end;
            padding: 1rem;
            color: white;
            font-weight: 600;
            font-size: 1.2rem;
        }
        .card-item:hover .card-overlay { opacity: 1; }
        .card-body-custom { padding: 0.8rem 1rem 1.2rem; }
        .tag {
            background: rgba(234, 88, 12, 0.12);
            color: var(--main);
            padding: 0.2rem 0.8rem;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        /* 比较表格 */
        .compare-table { width: 100%; border-collapse: separate; border-spacing: 0 10px; }
        .compare-table th, .compare-table td { padding: 1rem; background: white; }
        .compare-table th { background: rgba(234, 88, 12, 0.08); font-weight: 600; }
        .compare-table tr:first-child th:first-child { border-top-left-radius: 20px; }
        .compare-table tr:first-child th:last-child { border-top-right-radius: 20px; }
        .compare-table tr td:first-child { border-bottom-left-radius: 20px; }
        .compare-table tr td:last-child { border-bottom-right-radius: 20px; }
        .check { color: var(--main); font-weight: 900; }
        .cross { color: #aaa; }
        /* 步骤条 */
        .steps-container {
            display: flex;
            flex-wrap: wrap;
            gap: 1.8rem;
            margin-top: 2rem;
        }
        .step-item {
            flex: 1 1 180px;
            background: rgba(255, 255, 255, 0.8);
            border-radius: 30px;
            padding: 2rem 1.2rem;
            box-shadow: var(--card-shadow);
            border: 1px solid rgba(234, 88, 12, 0.1);
            position: relative;
        }
        .step-number {
            font-size: 3.5rem;
            font-weight: 900;
            color: var(--accent);
            opacity: 0.3;
            position: absolute;
            top: 5px; right: 15px;
            font-family: 'Noto Serif SC', serif;
        }
        /* Hero 大数字 */
        .hero-stat {
            font-size: 4rem;
            font-weight: 900;
            font-family: 'Noto Serif SC', serif;
            color: var(--main);
            text-shadow: 4px 4px 0 rgba(217,119,6,0.15);
            line-height: 1;
        }
        /* 进度条 */
        #scrollProgress {
            position: fixed;
            top: 0; left: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--main), var(--accent));
            width: 0%;
            z-index: 9999;
            border-radius: 0 6px 6px 0;
        }
        #backToTop {
            position: fixed;
            bottom: 2rem; right: 2rem;
            width: 52px; height: 52px;
            border-radius: 50%;
            background: var(--main);
            color: white;
            border: none;
            font-size: 1.5rem;
            box-shadow: 0 10px 25px rgba(234,88,12,0.4);
            opacity: 0;
            visibility: hidden;
            transition: 0.3s;
            z-index: 1000;
        }
        #backToTop.show { opacity: 1; visibility: visible; }
        .btn-cta {
            background: var(--main);
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 60px;
            font-weight: 700;
            box-shadow: 0 8px 18px rgba(234,88,12,0.3);
            color: white;
        }
        .btn-cta:hover { background: var(--accent); }
        footer { background: #1c1917; color: #f5f5f4; }
        footer a { color: #fdba74; }
        .friend-links a { margin: 0 1rem; }
        /* 品牌名不可拆分——不额外加样式破坏 */

/* --- 子页面追加 --- */
/* 关于我们页面专属样式 */
        .about-hero {
            position: relative;
            background: linear-gradient(135deg, var(--main) 0%, var(--accent) 100%);
            border-radius: 24px;
            padding: 3.5rem 2.5rem;
            color: #fff;
            overflow: hidden;
            margin-top: 2rem;
        }
.about-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 300px;
            height: 300px;
            background: rgba(255,255,255,0.08);
            border-radius: 50%;
        }
.about-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: 20%;
            width: 200px;
            height: 200px;
            background: rgba(255,255,255,0.06);
            border-radius: 50%;
        }
.about-hero h1 {
            font-size: 2.2rem;
            font-weight: 900;
            margin-bottom: 1rem;
            position: relative;
            z-index: 1;
        }
.about-hero p {
            font-size: 1.1rem;
            opacity: 0.95;
            max-width: 600px;
            position: relative;
            z-index: 1;
            line-height: 1.8;
        }
.about-section {
            margin-top: 3rem;
        }
.about-section h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--ink);
            margin-bottom: 1.5rem;
            padding-bottom: 0.75rem;
            border-bottom: 3px solid var(--main);
            display: inline-block;
        }
.about-card {
            background: #fff;
            border-radius: 16px;
            padding: 2rem;
            box-shadow: var(--card-shadow);
            height: 100%;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
.about-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--deep-shadow);
        }
.about-card .icon-wrap {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--main), var(--accent));
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.2rem;
            font-size: 1.5rem;
            color: #fff;
        }
.about-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 0.8rem;
        }
.about-card p {
            color: #57534e;
            line-height: 1.8;
            font-size: 0.95rem;
        }
.timeline-wrap {
            position: relative;
            padding-left: 30px;
        }
.timeline-wrap::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--main), var(--accent));
        }
.timeline-item {
            position: relative;
            margin-bottom: 2rem;
        }
.timeline-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--main);
            border: 3px solid #fff;
            box-shadow: 0 0 0 2px var(--main);
        }
.timeline-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 0.5rem;
        }
.timeline-item p {
            color: #57534e;
            line-height: 1.7;
            font-size: 0.95rem;
        }
.stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 1.5rem;
            margin-top: 1.5rem;
        }
.stat-item {
            text-align: center;
            padding: 1.5rem 1rem;
            background: #fff;
            border-radius: 16px;
            box-shadow: var(--card-shadow);
        }
.stat-item .num {
            font-size: 2rem;
            font-weight: 900;
            color: var(--main);
        }
.stat-item .label {
            font-size: 0.9rem;
            color: #57534e;
            margin-top: 0.4rem;
        }
.value-list {
            list-style: none;
            padding: 0;
        }
.value-list li {
            padding: 0.6rem 0;
            padding-left: 2rem;
            position: relative;
            color: #57534e;
            line-height: 1.7;
        }
.value-list li::before {
            content: '✦';
            position: absolute;
            left: 0;
            color: var(--main);
            font-size: 1rem;
        }
.about-quote {
            background: linear-gradient(135deg, #fff7ed, #ffedd5);
            border-left: 4px solid var(--main);
            border-radius: 12px;
            padding: 2rem;
            margin-top: 2rem;
            font-style: italic;
            color: var(--ink);
            font-size: 1.1rem;
            line-height: 1.9;
        }
.about-hero {
                padding: 2.5rem 1.5rem;
                border-radius: 16px;
            }
.about-hero h1 {
                font-size: 1.6rem;
            }
.about-hero p {
                font-size: 1rem;
            }
.about-section h2 {
                font-size: 1.3rem;
            }
.about-card {
                padding: 1.5rem;
                margin-bottom: 1rem;
            }

/* --- 子页面追加 --- */
/* 仅用于本页免责声明特有的排版微调，所有配色均继承自 :root */
        .legal-section {
            margin-top: 2.2rem;
        }
.legal-section h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
.legal-section h2 i {
            color: var(--main);
            font-size: 1.3rem;
            width: 1.8rem;
        }
.legal-section p, .legal-section li {
            line-height: 1.8;
            color: rgba(28,25,23,0.85);
            margin-bottom: 0.75rem;
        }
.legal-section ul, .legal-section ol {
            padding-left: 1.4rem;
            margin-bottom: 1rem;
        }
.legal-section li {
            margin-bottom: 0.4rem;
        }
.highlight-box {
            background: rgba(234,88,12,0.06);
            border-left: 4px solid var(--main);
            padding: 1rem 1.4rem;
            border-radius: 0 14px 14px 0;
            margin: 1.6rem 0;
        }
.highlight-box p {
            margin-bottom: 0.3rem;
        }
.btn-cta.small {
            padding: 0.4rem 1.2rem;
            font-size: 0.9rem;
        }
/* 覆盖Bootstrap可能带来的白底卡片 */
        .card, .card-body {
            background: transparent;
            border: none;
            color: var(--ink);
        }

/* --- 子页面追加 --- */
/* 确保Bootstrap组件不会破坏深色/暖色风格 */
        .card, .card-body, .card-header, .card-footer { background: var(--card-bg, #fff7ed); color: var(--ink, #1c1917); border-color: rgba(234, 88, 12, 0.2); }
.form-control, .form-select { background: rgba(255, 251, 245, 0.8); color: var(--ink); border-color: rgba(234, 88, 12, 0.3); }
.form-control:focus { background: #fff; color: var(--ink); }
.list-group-item { background: transparent; color: var(--ink); border-color: rgba(234, 88, 12, 0.15); }
.accordion-button, .accordion-item { background: var(--bg); color: var(--ink); border-color: rgba(234, 88, 12, 0.2); }
.accordion-button:not(.collapsed) { background: rgba(234, 88, 12, 0.1); color: var(--main); }
.nav-link, .navbar { color: var(--ink); }
.navbar-brand { color: var(--main); font-weight: 700; }
.btn-outline-custom { border-color: var(--main); color: var(--main); }
.btn-outline-custom:hover { background: var(--main); color: #fff; }
/* 隐私政策专用微调 */
        .privacy-card { background: rgba(255, 251, 245, 0.6); border-radius: 24px; padding: 2rem; border: 1px solid rgba(234, 88, 12, 0.15); box-shadow: var(--card-shadow); }
.privacy-card h3 { color: var(--main); font-weight: 600; margin-bottom: 1rem; }
.privacy-card p, .privacy-card li { color: #44403c; line-height: 1.75; }
.privacy-card strong { color: var(--main); }
.privacy-card ul { padding-left: 1.2rem; }
.privacy-card li { margin-bottom: 0.4rem; }
.mini-rule { border-top: 2px dashed rgba(234, 88, 12, 0.2); margin: 2rem 0; }
.section-tag { display: inline-block; background: rgba(234, 88, 12, 0.1); color: var(--main); padding: 0.2rem 1rem; border-radius: 30px; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.5px; margin-bottom: 1.5rem; }
.privacy-icon { color: var(--main); margin-right: 6px; }
/* 导航高亮当前页 */
        .nav-active a[href="/privacy.html"] { color: var(--main); font-weight: 700; border-bottom: 2px solid var(--main); }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.accordion-body { background:transparent !important; color:#1c1917 !important; }
.accordion-header { background:transparent !important; }