:root {
            --color-earth: #8B7355;
            --color-sky: #2C3E50;
            --color-gold: #C9A96E;
            --color-gold-deep: #B8943A;
            --color-cream: #F5F0E8;
            --color-white: #FFFFFF;
            --color-text: #3A3A3A;
            --color-text-light: #6B6B6B;
            --color-hero-dark: #1f1f1f;
            --font-heading: 'STSong', 'Songti SC', 'Noto Serif SC', 'KaiTi', 'PingFang SC', 'Microsoft YaHei', serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Noto Sans SC', sans-serif;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 8px 36px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.13);
            --radius: 12px;
            --radius-sm: 8px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

  /* ========== 英雄区 - 深色背景（完全保留） ========== */
        .hero {
            background: linear-gradient(135deg, #2C2C2C 0%, #3d3d3d 40%, #4a4a4a 100%);
            color: #fff;
            padding: 64px 0 54px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '☯';
            position: absolute;
            font-size: 16rem;
            opacity: 0.045;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            pointer-events: none;
            color: #D4AF37;
            line-height: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            top: -80px;
            left: 50%;
            transform: translateX(-50%);
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(212, 175, 55, 0.10) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero>* {
            position: relative;
            z-index: 1;
        }
        .hero h1 {
            font-family: var(--font-heading);
            font-size: clamp(30px, 5vw, 44px);
            color: #D4AF37;
            letter-spacing: 4px;
            margin-bottom: 14px;
            font-weight: 700;
        }
        .hero .subtitle {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.88);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.9;
            font-weight: 300;
            letter-spacing: 1px;
        }
        .hero .bridge-note {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 720px;
            margin: 16px auto 0;
            letter-spacing: 1px;
            font-style: italic;
            border-top: 1px dashed rgba(212, 175, 55, 0.3);
            padding-top: 14px;
        }
        .hero .badge-row {
            margin-top: 26px;
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .badge {
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(212, 175, 55, 0.35);
            border-radius: 28px;
            padding: 9px 22px;
            font-size: 14px;
            color: #E8D08F;
            font-family: var(--font-heading);
            letter-spacing: 1.5px;
            transition: var(--transition);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            cursor: default;
        }
        .badge:hover {
            background: rgba(255, 255, 255, 0.13);
            border-color: rgba(212, 175, 55, 0.6);
            color: #F5E6B8;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
        }

        .content-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (min-width: 1200px) {
            .content-container {
                max-width: 1100px;
            }
        }

        .section {
            padding: 60px 0;
        }
        .section-alt {
            background: var(--color-white);
        }
        .section-title {
            font-family: var(--font-heading);
            font-size: 27px;
            color: var(--color-sky);
            text-align: center;
            letter-spacing: 2px;
            margin-bottom: 10px;
            font-weight: 700;
            position: relative;
            display: inline-block;
            left: 50%;
            transform: translateX(-50%);
        }
        .section-title::after {
            content: '';
            display: block;
            width: 56px;
            height: 3px;
            background: var(--color-gold);
            margin: 10px auto 0;
            border-radius: 2px;
        }
        .section-desc {
            text-align: center;
            color: var(--color-text-light);
            font-size: 15px;
            margin-bottom: 44px;
            max-width: 720px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.9;
        }

        .tiangan-dizhi {
            background: var(--color-white);
            border-radius: var(--radius);
            padding: 38px 30px;
            box-shadow: var(--shadow-md);
            margin-top: 20px;
            border: 1px solid #EDE8DF;
        }
        .tg-dz-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 34px;
        }
        @media (max-width: 640px) {
            .tg-dz-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }
        .tg-dz-col h4 {
            font-family: var(--font-heading);
            font-size: 20px;
            color: var(--color-earth);
            margin-bottom: 16px;
            letter-spacing: 2px;
            border-bottom: 1px solid #E8DED0;
            padding-bottom: 12px;
            font-weight: 700;
        }
        /* ========== 字符列表：PC端每行6个，Grid布局，字号加大 ========== */
        .char-list {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 12px;
        }
        .char-item {
            background: #FDFBF7;
            border: 1px solid #EDE8DF;
            border-radius: var(--radius-sm);
            padding: 12px 8px;
            font-family: var(--font-heading);
            font-size: 22px; /* 显著加大天干地支主文字 */
            color: var(--color-sky);
            letter-spacing: 2px;
            text-align: center;
            min-width: 0;
            transition: var(--transition);
            cursor: default;
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            line-height: 1.4;
        }
        .char-item:hover {
            background: #F3EDE2;
            border-color: #D4C9B2;
            transform: scale(1.05);
            box-shadow: var(--shadow-sm);
            z-index: 1;
        }
        .char-item .meaning {
            display: block;
            font-size: 13px; /* 加大辅助含义文字 */
            font-family: var(--font-body);
            color: var(--color-text-light);
            letter-spacing: 0;
            margin-top: 4px;
            line-height: 1.3;
            white-space: nowrap;
        }
        .tg-dz-col>p {
            margin-top: 14px;
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.7;
        }

        /* 移动端：天干地支恢复flex-wrap自动换行，字号适配 */
        @media (max-width: 640px) {
            .char-list {
                display: flex;
                flex-wrap: wrap;
                gap: 10px;
            }
            .char-item {
                flex: 0 0 auto;
                min-width: 50px;
                padding: 10px 12px;
                font-size: 18px; /* 移动端也加大 */
            }
            .char-item .meaning {
                font-size: 12px; /* 移动端加大 */
                white-space: nowrap;
            }
            .tg-dz-col h4 {
                font-size: 18px;
            }
        }
        @media (max-width: 380px) {
            .char-list {
                gap: 8px;
            }
            .char-item {
                min-width: 44px;
                padding: 8px 8px;
                font-size: 16px; /* 超小屏保持可读 */
                letter-spacing: 1px;
            }
            .char-item .meaning {
                font-size: 10px;
            }
        }

        .timeline-dual {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        @media (max-width: 720px) {
            .timeline-dual {
                grid-template-columns: 1fr;
            }
        }
        .timeline-col {
            background: var(--color-white);
            border-radius: var(--radius);
            padding: 30px 24px;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .timeline-col:hover {
            box-shadow: var(--shadow-lg);
            border-color: #E8DED0;
            transform: translateY(-2px);
        }
        .timeline-col h4 {
            font-family: var(--font-heading);
            font-size: 19px;
            color: var(--color-sky);
            letter-spacing: 2px;
            margin-bottom: 20px;
            text-align: center;
            font-weight: 700;
        }
        .app-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
            padding: 15px 0;
            border-bottom: 1px solid #F0EBE0;
            transition: var(--transition);
        }
        .app-item:last-child {
            border-bottom: none;
        }
        .app-item:hover {
            background: #FDFBF8;
            margin: 0 -8px;
            padding-left: 8px;
            padding-right: 8px;
            border-radius: var(--radius-sm);
        }
        .app-icon {
            font-size: 30px;
            flex-shrink: 0;
            width: 42px;
            text-align: center;
            line-height: 1;
        }
        .app-content h5 {
            font-family: var(--font-heading);
            font-size: 16px;
            color: var(--color-earth);
            letter-spacing: 1px;
            margin-bottom: 4px;
            font-weight: 700;
        }
        .app-content p {
            font-size: 13px;
            color: var(--color-text-light);
            line-height: 1.7;
        }

        .modern-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(155px, 1fr));
            gap: 18px;
            margin-top: 10px;
        }
        .modern-card {
            background: var(--color-white);
            border-radius: var(--radius);
            padding: 28px 16px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border-top: 3px solid transparent;
            cursor: default;
            border: 1px solid #EDE8DF;
        }
        .modern-card:hover {
            box-shadow: var(--shadow-lg);
            border-top-color: var(--color-gold);
            transform: translateY(-4px);
            border-color: #E8DED0;
        }
        .modern-card .m-icon {
            font-size: 34px;
            display: block;
            margin-bottom: 12px;
            transition: var(--transition-slow);
        }
        .modern-card:hover .m-icon {
            transform: scale(1.12);
        }
        .modern-card h5 {
            font-family: var(--font-heading);
            font-size: 16px;
            color: var(--color-sky);
            letter-spacing: 1px;
            margin-bottom: 8px;
            font-weight: 700;
        }
        .modern-card p {
            font-size: 12px;
            color: var(--color-text-light);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .insight-card {
            background: var(--color-cream);
            border-radius: var(--radius);
            padding: 22px 26px;
            max-width: 240px;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .insight-card:hover {
            background: #fff;
            box-shadow: var(--shadow-md);
            border-color: #E8DED0;
            transform: translateY(-2px);
        }
        .insight-card .insight-icon {
            font-size: 34px;
            display: block;
            margin-bottom: 8px;
        }
        .insight-card h4 {
            font-family: var(--font-heading);
            color: var(--color-sky);
            margin: 10px 0;
            font-weight: 700;
            letter-spacing: 1px;
        }
        .insight-card p {
            font-size: 13px;
            color: var(--color-text-light);
            line-height: 1.7;
            margin-bottom: 0;
            white-space: nowrap;
        }

        .text-highlight {
            color: var(--color-earth);
            font-weight: bold;
        }

        .insight-cards-row {
            display: flex;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 28px;
        }
        @media (max-width: 576px) {
            .insight-cards-row {
                flex-direction: column;
                align-items: center;
            }
            .insight-card {
                max-width: 100%;
                width: 100%;
            }
        }

        /* 规律·非迷信 标题居中修正 */
        .section-title-center {
            font-family: var(--font-heading);
            font-size: 27px;
            color: var(--color-sky);
            text-align: center;
            letter-spacing: 2px;
            margin-bottom: 10px;
            font-weight: 700;
            display: block;
            position: static;
            left: auto;
            transform: none;
        }
        .section-title-center::after {
            content: '';
            display: block;
            width: 56px;
            height: 3px;
            background: var(--color-gold);
            margin: 10px auto 0;
            border-radius: 2px;
        }

        @media (max-width: 480px) {
            .hero {
                padding: 48px 0 40px;
            }
            .hero h1 {
                font-size: 26px;
                letter-spacing: 3px;
            }
            .hero .subtitle {
                font-size: 14px;
            }
            .hero .bridge-note {
                font-size: 12px;
            }
            .hero .badge-row {
                gap: 8px;
                margin-top: 20px;
            }
            .badge {
                padding: 7px 15px;
                font-size: 12px;
                letter-spacing: 1px;
            }
            .section-title,
            .section-title-center {
                font-size: 22px;
            }
            .section {
                padding: 44px 0;
            }
            .tiangan-dizhi {
                padding: 24px 16px;
            }
            .timeline-col {
                padding: 22px 14px;
            }
            .modern-card {
                padding: 20px 12px;
            }
            .insight-card {
                max-width: 100%;
            }
            .nav-brand {
                font-size: 18px;
                letter-spacing: 2px;
            }
            .nav-brand-icon {
                width: 28px;
                height: 28px;
                font-size: 13px;
            }
            .nav-subtitle {
                font-size: 11px;
            }
        }
        @media (max-width: 360px) {
            .hero h1 {
                font-size: 22px;
            }
            .hero::before {
                font-size: 10rem;
            }
            .badge {
                padding: 6px 11px;
                font-size: 11px;
                letter-spacing: 0.5px;
            }
        }