/* ==========================================================================
   小白的数字空间 · Claude (Anthropic) 官方文学极简设计系统
   设计参照：C:\Users\xiaobai\.agents\skills\creative\popular-web-designs\templates\claude.md
   核心特征：
   - 温暖羊皮纸背景 (Parchment #f5f4ed) 与象牙白表面 (Ivory #faf9f5)
   - 深炭暖黑暗色调 (Deep Near Black #141413) 与深色表面 (#1e1e1c)
   - 官方品牌陶土暖橙 (Terracotta #c96442 / #d97757)
   - 100% 暖色调中性灰，摒弃冷蓝灰；Ring-based 细腻环状投影与 Whisper 柔影
   - 典雅衬线与清爽无衬线排版，全站统一微软雅黑色阶，零廉价终端特效与 Emoji 乱象
   ========================================================================== */

:root {
    /* 字体族系 */
    --font-sans: "Microsoft YaHei", "微软雅黑", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", Georgia, "Times New Roman", serif;
    --font-mono: "Cascadia Code", "Fira Code", Consolas, Menlo, Monaco, monospace;

    /* 亮色主题 (Claude Parchment 官方默认) */
    --claude-bg: #f5f4ed;               /* 官方羊皮纸底色 */
    --claude-surface: #faf9f5;          /* 象牙白卡片表面 */
    --claude-surface-hover: #ffffff;    /* 悬浮微亮高光表面 */
    --claude-surface-muted: #eceae1;    /* 次级表面/输入背景 */
    --claude-nav-bg: rgba(245, 244, 237, 0.88); /* 顶部半透导航 */

    --claude-border: #e8e6dc;           /* 温暖沙岩边框 (1px) */
    --claude-border-subtle: #f0eee6;    /* 奶油细腻浅边框 */
    --claude-border-hover: rgba(201, 100, 66, 0.4); /* 陶土微光边框 */

    --claude-text: #141413;             /* 官方近黑 (Warm Charcoal) */
    --claude-text-secondary: #5e5d59;   /* 橄榄灰正文 (Olive Gray) */
    --claude-text-muted: #87867f;       /* 石灰弱化注释 (Stone Gray) */

    /* 核心品牌色与辅色 */
    --claude-terracotta: #c96442;       /* 核心品牌色：陶土橙 (Terracotta Brand) */
    --claude-terracotta-hover: #b85736;
    --claude-terracotta-soft: rgba(201, 100, 66, 0.08);
    --claude-terracotta-border: rgba(201, 100, 66, 0.22);
    --claude-terracotta-text: #c96442;

    --claude-sage: #788c5d;             /* 鼠尾草橄榄绿 */
    --claude-sage-soft: rgba(120, 140, 93, 0.1);
    --claude-slate: #5b7f95;            /* 板岩灰蓝 */
    --claude-slate-soft: rgba(91, 127, 149, 0.1);

    --shadow-ring: 0 0 0 1px var(--claude-border);
    --shadow-whisper: 0 4px 20px rgba(20, 20, 19, 0.04);
    --shadow-lift: 0 12px 28px rgba(20, 20, 19, 0.07);
    --shadow-modal: 0 20px 50px rgba(20, 20, 19, 0.18);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-pill: 9999px;
}


/* 全局重置 */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-sans);
}

html {
    scroll-behavior: smooth;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--claude-bg);
    color: var(--claude-text);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* 自然落樱画布 */
#sakura-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    opacity: 0.35;
    transition: opacity 0.5s ease;
}

/* 核心主容器 */
.claude-container {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 24px 80px;
}

/* ================= 1. 顶部导航栏 ================= */
header.claude-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
    background: var(--claude-nav-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--claude-border);
    border-radius: var(--radius-pill);
    margin-bottom: 48px;
    box-shadow: var(--shadow-whisper);
    position: sticky;
    top: 16px;
    z-index: 100;
    transition: all 0.25s ease;
}

.brand-section {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.brand-spark {
    color: var(--claude-terracotta);
    font-size: 18px;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.brand-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1.5px solid var(--claude-border);
    object-fit: cover;
}

.brand-meta {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--claude-text);
    letter-spacing: -0.2px;
}

.brand-sub {
    font-size: 11px;
    color: var(--claude-text-muted);
}

.header-center-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.claude-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    font-size: 13.5px;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-pill);
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.claude-nav-link.primary {
    background: var(--claude-terracotta-soft);
    color: var(--claude-terracotta);
    border-color: var(--claude-terracotta-border);
}

.claude-nav-link.primary:hover {
    background: var(--claude-terracotta);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(201, 100, 66, 0.25);
}

.claude-nav-link.secondary {
    background: transparent;
    color: var(--claude-text-secondary);
}

.claude-nav-link.secondary:hover {
    background: var(--claude-surface-muted);
    color: var(--claude-text);
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.time-widget {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--claude-text-muted);
    padding-right: 8px;
    border-right: 1px solid var(--claude-border);
}

.ctrl-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid var(--claude-border);
    background: var(--claude-surface);
    color: var(--claude-text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
}

.ctrl-btn:hover {
    background: var(--claude-surface-hover);
    color: var(--claude-terracotta);
    border-color: var(--claude-border-hover);
}

.ctrl-btn.active {
    color: var(--claude-terracotta);
    border-color: var(--claude-terracotta-border);
    background: var(--claude-terracotta-soft);
}

.ctrl-btn svg {
    width: 15px;
    height: 15px;
    fill: currentColor;
}

/* ================= 2. Claude 官方文学感 Hero ================= */
.claude-hero-section {
    text-align: center;
    margin-bottom: 56px;
    padding: 12px 16px 0;
}

.claude-eyebrow-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 14px;
    background: var(--claude-surface);
    border: 1px solid var(--claude-border);
    border-radius: var(--radius-pill);
    font-size: 12.5px;
    font-weight: 500;
    color: var(--claude-text-secondary);
    margin-bottom: 24px;
    box-shadow: var(--shadow-whisper);
}

.claude-eyebrow-pill .spark {
    color: var(--claude-terracotta);
}

.claude-hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4.5vw, 3.25rem);
    font-weight: 500;
    line-height: 1.22;
    color: var(--claude-text);
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.claude-hero-desc {
    max-width: 680px;
    margin: 0 auto 32px;
    font-size: 16px;
    line-height: 1.7;
    color: var(--claude-text-secondary);
}

.claude-hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 48px;
}

.btn-claude-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    background: var(--claude-terracotta);
    color: #ffffff;
    font-size: 14.5px;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-pill);
    border: 1px solid var(--claude-terracotta);
    box-shadow: 0 4px 14px rgba(201, 100, 66, 0.28);
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn-claude-primary:hover {
    background: var(--claude-terracotta-hover);
    border-color: var(--claude-terracotta-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(201, 100, 66, 0.36);
}

.btn-claude-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--claude-surface);
    color: var(--claude-text);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-pill);
    border: 1px solid var(--claude-border);
    box-shadow: var(--shadow-whisper);
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn-claude-secondary:hover {
    background: var(--claude-surface-hover);
    border-color: var(--claude-border-hover);
    color: var(--claude-terracotta);
    transform: translateY(-1px);
}

/* ================= 3. 典藏心绪卡片 (Claude Artifact 风格) ================= */
.claude-artifact-card {
    max-width: 820px;
    margin: 0 auto;
    background: var(--claude-surface);
    border: 1px solid var(--claude-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-whisper);
    padding: 24px 28px;
    text-align: left;
    position: relative;
    transition: all 0.25s ease;
}

.claude-artifact-card:hover {
    border-color: var(--claude-border-hover);
    box-shadow: var(--shadow-lift);
}

.artifact-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--claude-border-subtle);
    margin-bottom: 18px;
    flex-wrap: wrap;
    gap: 12px;
}

.artifact-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--claude-terracotta);
}

.artifact-meta-group {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12.5px;
    color: var(--claude-text-muted);
}

.love-counter-tag {
    background: var(--claude-terracotta-soft);
    color: var(--claude-terracotta);
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 600;
    border: 1px solid var(--claude-terracotta-border);
}

.artifact-body {
    font-family: var(--font-serif);
    font-size: 16.5px;
    line-height: 1.8;
    color: var(--claude-text);
    margin-bottom: 20px;
    font-style: normal;
    padding: 4px 0;
}

.artifact-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 14px;
    border-top: 1px solid var(--claude-border-subtle);
}

.artifact-tip {
    font-size: 12px;
    color: var(--claude-text-muted);
}

.artifact-btn-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.artifact-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    font-size: 12.5px;
    font-weight: 500;
    background: var(--claude-surface-muted);
    border: 1px solid var(--claude-border);
    border-radius: var(--radius-sm);
    color: var(--claude-text);
    cursor: pointer;
    transition: all 0.2s ease;
}

.artifact-btn:hover {
    background: var(--claude-surface-hover);
    color: var(--claude-terracotta);
    border-color: var(--claude-border-hover);
}

.artifact-btn svg {
    width: 13px;
    height: 13px;
    fill: currentColor;
}

/* ================= 4. 分类筛选导航 ================= */
.claude-filter-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 16px;
    padding: 0 4px;
}

.filter-tab-group {
    display: inline-flex;
    align-items: center;
    background: var(--claude-surface);
    padding: 4px;
    border: 1px solid var(--claude-border);
    border-radius: var(--radius-pill);
    box-shadow: var(--shadow-whisper);
    gap: 2px;
    flex-wrap: wrap;
}

.filter-tab-btn {
    border: none;
    background: transparent;
    padding: 6px 16px;
    border-radius: var(--radius-pill);
    font-size: 13px;
    font-weight: 500;
    color: var(--claude-text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-tab-btn:hover {
    color: var(--claude-text);
}

.filter-tab-btn.active {
    background: var(--claude-bg);
    color: var(--claude-text);
    font-weight: 600;
    box-shadow: 0 1px 4px rgba(20, 20, 19, 0.08);
}

.filter-status-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--claude-text-muted);
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--claude-sage);
}

/* ================= 5. Bento 网格矩阵 ================= */
.claude-bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-bottom: 64px;
}

.claude-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: var(--claude-surface);
    border: 1px solid var(--claude-border);
    border-radius: var(--radius-lg);
    padding: 22px 24px;
    text-decoration: none;
    color: inherit;
    box-shadow: var(--shadow-ring), var(--shadow-whisper);
    transition: all 0.24s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.claude-card:hover {
    border-color: var(--claude-border-hover);
    box-shadow: var(--shadow-ring), var(--shadow-lift);
    transform: translateY(-2px);
    background: var(--claude-surface-hover);
}

.claude-card.featured {
    grid-column: span 1;
    border-color: var(--claude-border);
}

.card-top {
    margin-bottom: 20px;
}

.card-badge-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.card-icon-box {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--claude-surface-muted);
    border: 1px solid var(--claude-border);
    color: var(--claude-text);
    transition: all 0.2s ease;
}

.claude-card:hover .card-icon-box {
    color: var(--claude-terracotta);
    border-color: var(--claude-terracotta-border);
    background: var(--claude-terracotta-soft);
}

.card-icon-box svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.card-pill {
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-pill);
    letter-spacing: 0.2px;
}

.card-pill.terracotta {
    background: var(--claude-terracotta-soft);
    color: var(--claude-terracotta-text);
    border: 1px solid var(--claude-terracotta-border);
}

.card-pill.sage {
    background: var(--claude-sage-soft);
    color: var(--claude-sage);
    border: 1px solid rgba(120, 140, 93, 0.25);
}

.card-pill.slate {
    background: var(--claude-slate-soft);
    color: var(--claude-slate);
    border: 1px solid rgba(91, 127, 149, 0.25);
}

.card-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--claude-text);
    margin-bottom: 8px;
    letter-spacing: -0.2px;
    transition: color 0.2s ease;
}

.claude-card:hover .card-title {
    color: var(--claude-terracotta);
}

.card-desc {
    font-size: 13.5px;
    line-height: 1.6;
    color: var(--claude-text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 14px;
    border-top: 1px solid var(--claude-border-subtle);
    font-size: 12px;
}

.card-domain {
    font-family: var(--font-mono);
    color: var(--claude-text-muted);
}

.card-arrow {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--claude-text-secondary);
    font-weight: 500;
    transition: all 0.2s ease;
}

.claude-card:hover .card-arrow {
    color: var(--claude-terracotta);
    transform: translateX(2px);
}

/* ================= 6. 页脚 ================= */
footer.claude-footer {
    border-top: 1px solid var(--claude-border);
    padding-top: 36px;
    text-align: center;
    font-size: 13px;
    color: var(--claude-text-muted);
}

.footer-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-nav a {
    color: var(--claude-text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-nav a:hover {
    color: var(--claude-terracotta);
}

.footer-sub {
    font-size: 12px;
    color: var(--claude-text-muted);
    margin-top: 8px;
}

/* ================= 7. 模态弹窗 ================= */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(20, 20, 19, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
    padding: 20px;
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: var(--claude-surface);
    border: 1px solid var(--claude-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-modal);
    width: 100%;
    max-width: 520px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    transform: scale(0.96);
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
}

.modal-overlay.open .modal-content {
    transform: scale(1);
}

.modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 22px;
    border-bottom: 1px solid var(--claude-border);
}

.modal-head h2 {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 500;
    color: var(--claude-text);
}

.modal-close-btn {
    background: transparent;
    border: none;
    font-size: 22px;
    color: var(--claude-text-muted);
    cursor: pointer;
    line-height: 1;
    padding: 4px;
    transition: color 0.2s ease;
}

.modal-close-btn:hover {
    color: var(--claude-terracotta);
}

.modal-scroll {
    padding: 24px 28px;
    overflow-y: auto;
    font-family: var(--font-serif);
    font-size: 15px;
    line-height: 1.85;
    color: var(--claude-text);
}

/* 轻提示 Toast */
.toast-msg {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--claude-text);
    color: var(--claude-bg);
    padding: 10px 22px;
    border-radius: var(--radius-pill);
    font-size: 13.5px;
    font-weight: 500;
    box-shadow: var(--shadow-lift);
    opacity: 0;
    pointer-events: none;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 2000;
}

.toast-msg.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ================= 8. 响应式断点 ================= */
@media (max-width: 992px) {
    .claude-bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 680px) {
    .claude-container {
        padding: 16px 16px 60px;
    }
    header.claude-header {
        padding: 8px 14px;
        margin-bottom: 32px;
    }
    .brand-sub, .header-center-links, .time-widget {
        display: none;
    }
    .claude-hero-title {
        font-size: 1.85rem;
    }
    .claude-hero-desc {
        font-size: 14.5px;
    }
    .claude-bento-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .artifact-footer {
        flex-direction: column;
        align-items: flex-start;
    }
    .claude-filter-section {
        flex-direction: column;
        align-items: flex-start;
    }
    .filter-tab-group {
        width: 100%;
        justify-content: flex-start;
    }
    .audio-capsule-title, .dimension-source {
        display: none;
    }
    .claude-exchange-section {
        padding: 24px 18px;
    }
    .exchange-table td {
        padding: 10px 12px;
        font-size: 12.5px;
    }
    .copy-chip-btn {
        margin-left: 4px;
        padding: 2px 6px;
        font-size: 11px;
    }
}

/* ================= 9. 全局实时检索与状态 ================= */
.claude-search-wrap {
    width: 100%;
    margin-bottom: 20px;
}
.claude-search-box {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--claude-surface);
    border: 1px solid var(--claude-border);
    border-radius: var(--radius-pill);
    padding: 9px 18px;
    box-shadow: var(--shadow-whisper);
    transition: all 0.25s ease;
}
.claude-search-box:focus-within {
    border-color: var(--claude-terracotta);
    box-shadow: 0 0 0 3px var(--claude-terracotta-soft), var(--shadow-whisper);
    background: var(--claude-surface-hover);
}
.claude-search-box svg {
    width: 16px;
    height: 16px;
    fill: var(--claude-text-muted);
    flex-shrink: 0;
}
.claude-search-input {
    border: none;
    background: transparent;
    outline: none;
    font-size: 14px;
    color: var(--claude-text);
    width: 100%;
}
.claude-search-input::placeholder {
    color: var(--claude-text-muted);
}
.claude-search-badge {
    font-size: 11px;
    color: var(--claude-text-muted);
    background: var(--claude-surface-muted);
    padding: 3px 9px;
    border-radius: var(--radius-pill);
    white-space: nowrap;
}
.claude-search-clear {
    border: none;
    background: none;
    cursor: pointer;
    color: var(--claude-text-muted);
    font-size: 16px;
    line-height: 1;
    padding: 2px 6px;
    border-radius: 50%;
    display: none;
    transition: all 0.2s;
}
.claude-search-clear:hover {
    color: var(--claude-text);
    background: var(--claude-surface-muted);
}
.claude-search-clear.show {
    display: block;
}
.empty-search-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    background: var(--claude-surface);
    border: 1px dashed var(--claude-border);
    border-radius: var(--radius-lg);
    color: var(--claude-text-secondary);
    display: none;
}
.empty-search-state.show {
    display: block;
}
.empty-search-state h4 {
    font-size: 16px;
    margin-bottom: 8px;
    color: var(--claude-text);
}
.empty-search-state p {
    font-size: 13.5px;
    color: var(--claude-text-muted);
}

/* ================= 10. 维度诗篇名片 (融合 l/ 空间灵魂) ================= */
.dimension-literary-card {
    background: var(--claude-surface);
    border: 1px solid var(--claude-border);
    border-radius: var(--radius-lg);
    padding: 24px 30px;
    margin: 0 auto 32px;
    max-width: 820px;
    box-shadow: var(--shadow-whisper);
    position: relative;
    overflow: hidden;
    text-align: left;
    border-left: 3.5px solid var(--claude-terracotta);
}
.dimension-literary-card::before {
    content: "“";
    position: absolute;
    right: 24px;
    bottom: -20px;
    font-family: Georgia, serif;
    font-size: 110px;
    line-height: 1;
    color: var(--claude-border-subtle);
    pointer-events: none;
    user-select: none;
    opacity: 0.8;
}
.dimension-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 11.5px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}
.dimension-tag {
    color: var(--claude-terracotta);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.dimension-source {
    color: var(--claude-text-muted);
}
.dimension-body {
    font-family: var(--font-serif);
    font-size: 16px;
    line-height: 1.85;
    color: var(--claude-text);
    font-style: italic;
    margin-bottom: 14px;
    position: relative;
    z-index: 1;
}
.dimension-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 12.5px;
    color: var(--claude-text-muted);
    border-top: 1px solid var(--claude-border-subtle);
    padding-top: 12px;
}
.dimension-footer .author-badge {
    color: var(--claude-text-secondary);
    font-weight: 500;
}

/* ================= 11. 随身音乐胶囊与星空模式控制器 ================= */
.audio-capsule {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 12px 4px 6px;
    background: var(--claude-surface-muted);
    border: 1px solid var(--claude-border);
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: all 0.25s ease;
    user-select: none;
}
.audio-capsule:hover {
    background: var(--claude-surface-hover);
    border-color: var(--claude-border-hover);
}
.audio-capsule.playing {
    background: var(--claude-terracotta-soft);
    border-color: var(--claude-terracotta-border);
}
.audio-capsule-btn {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--claude-surface);
    border: 1px solid var(--claude-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--claude-text);
    transition: all 0.2s;
}
.audio-capsule.playing .audio-capsule-btn {
    background: var(--claude-terracotta);
    color: #fff;
    border-color: var(--claude-terracotta);
}
.audio-capsule-btn svg {
    width: 10px;
    height: 10px;
    fill: currentColor;
}
.audio-capsule-title {
    font-size: 11.5px;
    font-weight: 500;
    color: var(--claude-text-secondary);
    white-space: nowrap;
}
.audio-waves {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 12px;
}
.audio-wave-bar {
    width: 2px;
    height: 4px;
    background: var(--claude-text-muted);
    border-radius: 1px;
    transition: height 0.2s ease;
}
.audio-capsule.playing .audio-wave-bar {
    background: var(--claude-terracotta);
    animation: waveBounce 0.8s ease-in-out infinite alternate;
}
.audio-capsule.playing .audio-wave-bar:nth-child(1) { animation-delay: 0.1s; }
.audio-capsule.playing .audio-wave-bar:nth-child(2) { animation-delay: 0.3s; }
.audio-capsule.playing .audio-wave-bar:nth-child(3) { animation-delay: 0.2s; }
.audio-capsule.playing .audio-wave-bar:nth-child(4) { animation-delay: 0.4s; }

@keyframes waveBounce {
    0% { height: 3px; }
    100% { height: 12px; }
}

.ambient-mode-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    background: var(--claude-surface-muted);
    border: 1px solid var(--claude-border);
    border-radius: var(--radius-pill);
    font-size: 12px;
    color: var(--claude-text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}
.ambient-mode-btn:hover {
    background: var(--claude-surface-hover);
    color: var(--claude-text);
    border-color: var(--claude-border-hover);
}

/* ================= 12. 站群互联与友链交换专区 (融合 links.html) ================= */
.claude-exchange-section {
    margin: 56px 0 48px;
    background: var(--claude-surface);
    border: 1px solid var(--claude-border);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    box-shadow: var(--shadow-whisper);
    scroll-margin-top: 100px;
}
.exchange-header {
    margin-bottom: 24px;
}
.exchange-title {
    font-family: var(--font-serif);
    font-size: 1.45rem;
    font-weight: 500;
    color: var(--claude-text);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.exchange-desc {
    font-size: 14px;
    color: var(--claude-text-secondary);
    line-height: 1.7;
}
.exchange-table-wrap {
    overflow-x: auto;
    margin: 20px 0;
    border: 1px solid var(--claude-border-subtle);
    border-radius: var(--radius-md);
    background: var(--claude-bg);
}
.exchange-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}
.exchange-table tr {
    border-bottom: 1px solid var(--claude-border-subtle);
}
.exchange-table tr:last-child {
    border-bottom: none;
}
.exchange-table td {
    padding: 12px 18px;
    color: var(--claude-text);
}
.exchange-table td.field-label {
    width: 110px;
    color: var(--claude-text-secondary);
    font-weight: 500;
    background: var(--claude-surface-muted);
}
.copy-chip-btn {
    margin-left: 10px;
    padding: 3px 10px;
    font-size: 11.5px;
    border-radius: 6px;
    border: 1px solid var(--claude-border);
    background: var(--claude-surface);
    color: var(--claude-text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}
.copy-chip-btn:hover {
    background: var(--claude-terracotta);
    color: #fff;
    border-color: var(--claude-terracotta);
}
.exchange-rules-box {
    margin-top: 20px;
    padding: 16px 20px;
    background: var(--claude-surface-muted);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--claude-terracotta);
    font-size: 13px;
    color: var(--claude-text-secondary);
    line-height: 1.8;
}

/* 访客足迹右下角悬浮提示 */
.visitor-ip-badge {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 1000;
    background: rgba(250, 249, 245, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--claude-border);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    box-shadow: 0 8px 30px rgba(20, 20, 19, 0.08);
    display: flex;
    align-items: center;
    gap: 12px;
    opacity: 0;
    transform: translateY(20px) scale(0.96);
    pointer-events: none;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    max-width: 360px;
}
.visitor-ip-badge.show {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}
.visitor-ip-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--claude-terracotta-soft);
    color: var(--claude-terracotta);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
}
.visitor-ip-info {
    flex: 1;
    min-width: 0;
}
.visitor-ip-title {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--claude-text);
    margin-bottom: 2px;
    line-height: 1.4;
    white-space: normal;
}
.visitor-ip-loc {
    color: var(--claude-terracotta);
    font-weight: 600;
}
.visitor-ip-desc {
    font-size: 11px;
    color: var(--claude-text-muted);
    font-family: var(--font-mono);
}
.visitor-ip-close {
    background: transparent;
    border: none;
    color: var(--claude-text-muted);
    font-size: 16px;
    cursor: pointer;
    padding: 2px 4px;
    line-height: 1;
    border-radius: 4px;
    transition: all 0.2s;
}
.visitor-ip-close:hover {
    color: var(--claude-text);
    background: var(--claude-surface-muted);
}
@media (max-width: 680px) {
    .visitor-ip-badge {
        right: 16px;
        bottom: 16px;
        left: 16px;
        max-width: none;
    }
}

/* 2026-10-16: 滚动后提高导航栏不透明度,避免下方卡片内容透字 */
header.claude-header.scrolled {
    background: rgba(245, 244, 237, 0.97);
    box-shadow: 0 8px 28px rgba(120, 100, 80, 0.14);
}