/* ========== 内容排版 ========== */
.content h1 {
    font-size: 28px;
    color: #1a1a2e;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #d4c9a8;
    animation: anim-fade-down 0.5s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.content h2 {
    font-size: 22px;
    color: #1a1a2e;
    margin-top: 35px;
    margin-bottom: 15px;
    padding-bottom: 8px;
    border-bottom: 1px solid #d4c9a8;
    animation: anim-fade-left 0.45s cubic-bezier(0.2, 0.7, 0.2, 1) both;
    position: relative;
    transition: border-bottom-color 0.3s ease, padding-left 0.3s ease;
}

.content h2:hover {
    border-bottom-color: #4a90d9;
    padding-left: 6px;
}

.content h3 {
    font-size: 18px;
    color: #333;
    margin-top: 25px;
    margin-bottom: 12px;
    animation: anim-fade-up 0.4s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.content h4 {
    font-size: 16px;
    color: #444;
    margin-top: 20px;
    margin-bottom: 10px;
    transition: color 0.25s ease, transform 0.25s ease;
}

.content h4:hover {
    color: #1a1a2e;
    transform: translateX(3px);
}

.content h5 {
    font-size: 15px;
    color: #4a90d9;
    margin-top: 18px;
    margin-bottom: 8px;
    padding-left: 10px;
    border-left: 3px solid #4a90d9;
    transition: padding-left 0.25s ease, border-left-width 0.25s ease, color 0.25s ease;
}

.content h5:hover {
    padding-left: 14px;
    border-left-width: 5px;
    color: #357abd;
}

.content p {
    margin-bottom: 15px;
    color: #444;
}

.content ul, .content ol {
    margin-bottom: 15px;
    padding-left: 25px;
}

.content li {
    margin-bottom: 8px;
    color: #444;
    transition: color 0.25s ease, transform 0.25s ease, padding-left 0.25s ease;
}

.content li:hover {
    color: #1a1a2e;
    transform: translateX(3px);
    padding-left: 2px;
}

.content strong {
    color: #1a1a2e;
}

.content a {
    color: #4a90d9;
    text-decoration: none;
    position: relative;
    transition: color 0.25s ease;
}

.content a:hover {
    color: #357abd;
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 2px;
}

.content code {
    background-color: #f0ebe0;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: "Consolas", "Monaco", monospace;
    font-size: 0.9em;
    color: #c7254e;
    display: inline-block;
}

.content code:hover {
    background-color: transparent;
    color: inherit;
    transform: none;
}

.content pre {
    background-color: #2d2d44;
    color: #f8f8f2;
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 20px;
    font-family: "Consolas", "Monaco", monospace;
    font-size: 14px;
    line-height: 1.5;
}

.content pre:hover {
    transform: none;
    box-shadow: none;
}

.content pre code {
    background-color: transparent;
    color: inherit;
    padding: 0;
}

/* 代码块的复制按钮 */
.content pre {
    position: relative;
}

.content .copy-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.7);
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.content pre:hover .copy-btn {
    opacity: 1;
}

.content .copy-btn:hover {
    background-color: rgba(255, 255, 255, 0.25);
    color: #fff;
}

.content .copy-btn.copied {
    background-color: rgba(76, 175, 80, 0.3);
    border-color: rgba(76, 175, 80, 0.5);
    color: #81c784;
}

/* 默认 blockquote 样式（除 creative-plaza 的变体外，所有页面都使用） */
.content blockquote {
    background-color: #fff8e7;
    border-left: 4px solid #f0a500;
    padding: 15px 20px;
    margin-bottom: 20px;
    color: #666;
    border-radius: 0 6px 6px 0;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-left-width 0.25s ease;
}

.content blockquote:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 14px rgba(240, 165, 0, 0.18);
    border-left-width: 6px;
}

/* 警告框 —— 视觉上比黄色 blockquote "notice" 更强。
   用于弃用说明、已知 bug 提示等。 */
.content .warning-box {
    background-color: #fdecea;
    border-left: 4px solid #d9534f;
    padding: 14px 20px;
    margin-bottom: 20px;
    color: #a94442;
    border-radius: 0 6px 6px 0;
    font-size: 14px;
    line-height: 1.7;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-left-width 0.25s ease;
}

.content .warning-box:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 14px rgba(217, 83, 79, 0.18);
    border-left-width: 6px;
}

.content .warning-box p {
    margin: 0;
}

.content .warning-box strong {
    color: #c9302c;
}

/* 通过框 —— 用于推荐 / 正面通知 */
.content .access-box {
    background-color: #e8f5e9;
    border-left: 4px solid #4caf50;
    padding: 14px 20px;
    margin-bottom: 20px;
    color: #2e7d32;
    border-radius: 0 6px 6px 0;
    font-size: 14px;
    line-height: 1.7;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-left-width 0.25s ease;
}

.content .access-box:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 14px rgba(76, 175, 80, 0.18);
    border-left-width: 6px;
}

.content .access-box p {
    margin: 0;
}

.content .access-box strong {
    color: #1b5e20;
}

/* 信息框 —— 中性的建议 / 提示（蓝色） */
.content .info-box {
    background-color: #e8f0fe;
    border-left: 4px solid #4a90d9;
    padding: 14px 20px;
    margin-bottom: 20px;
    color: #2a4d7a;
    border-radius: 0 6px 6px 0;
    font-size: 14px;
    line-height: 1.7;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-left-width 0.25s ease;
}

.content .info-box:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 14px rgba(74, 144, 217, 0.18);
    border-left-width: 6px;
}

.content .info-box p {
    margin: 0;
}

.content .info-box p + p {
    margin-top: 8px;
}

.content .info-box strong {
    color: #1d5494;
}

.content .info-box a {
    color: #1d5494;
    font-weight: 600;
    text-decoration: none;
    border-bottom: 1px dashed rgba(29, 84, 148, 0.45);
    transition: color 0.18s, border-color 0.18s;
}

.content .info-box a:hover {
    color: #4a90d9;
    border-bottom-color: #4a90d9;
}

.content hr {
    border: none;
    border-top: 1px solid #d4c9a8;
    margin: 30px 0;
}

.content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 15px 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.4s cubic-bezier(0.2, 0.7, 0.2, 1), box-shadow 0.4s ease;
}

.content img:hover {
    transform: scale(1.015);
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.18);
}

/* 表格（被 sign-usage.html 与 resource-pack.html 使用） */
.content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.content th, .content td {
    border: 1px solid #d4c9a8;
    padding: 12px 15px;
    text-align: left;
}

.content th {
    background-color: #1a1a2e;
    color: #fff;
    position: relative;
}

.content tbody tr {
    transition: background-color 0.25s ease, transform 0.25s ease;
}

.content tbody tr:hover {
    background-color: rgba(74, 144, 217, 0.08);
}

.content tr:nth-child(even) {
    background-color: rgba(212, 201, 168, 0.1);
}

/* ========== 内容头（docs.html） ========== */
.content-header {
    margin-bottom: 30px;
}

.content-header .page-title {
    font-size: 28px;
    color: #333;
    margin-bottom: 15px;
    text-align: center;
}

.content-header .page-title:only-child {
    margin-bottom: 0;
}

/* ========== 介绍文字（docs.html） ========== */
.intro-text {
    background-color: rgba(255, 255, 255, 0.6);
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 30px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    animation: anim-fade-up 0.6s cubic-bezier(0.2, 0.7, 0.2, 1) 0.15s both;
}

.intro-text:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.06);
    border-color: rgba(74, 144, 217, 0.25);
}

.intro-text p {
    color: #555;
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 15px;
}

.intro-text p:last-child {
    margin-bottom: 0;
}

/* ========== 介绍框（creative-plaza） ========== */
.intro-box {
    padding: 0 1em;
    color: #444;
    margin-bottom: 20px;
}

/* ========== 即将上线（creative-plaza） ========== */
.coming-soon {
    text-align: center;
    padding: 3em 0;
    font-style: italic;
    color: #666;
    font-size: 18px;
}

/* ========== FAQ 项（disclaimer-faq） ========== */
.faq-item {
    margin-bottom: 25px;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 8px;
    border: 1px solid rgba(212, 201, 168, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    animation: anim-fade-up 0.5s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.faq-item:nth-child(1) { animation-delay: 0.1s; }
.faq-item:nth-child(2) { animation-delay: 0.2s; }
.faq-item:nth-child(3) { animation-delay: 0.3s; }
.faq-item:nth-child(4) { animation-delay: 0.4s; }
.faq-item:nth-child(5) { animation-delay: 0.5s; }
.faq-item:nth-child(n+6) { animation-delay: 0.55s; }

.faq-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.07);
    border-color: rgba(74, 144, 217, 0.35);
}

.faq-item h3 {
    margin-top: 0;
    color: #4a90d9;
    transition: color 0.25s ease;
}

.faq-item:hover h3 {
    color: #357abd;
}

/* ========== 免责声明列表（disclaimer-faq） ========== */
.disclaimer-list {
    list-style: none;
    padding: 0;
}

.disclaimer-list li {
    margin-bottom: 20px;
    padding: 15px;
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 8px;
    border-left: 4px solid #d9534f;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-left-width 0.25s ease;
    animation: anim-fade-up 0.5s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.disclaimer-list li:nth-child(1) { animation-delay: 0.1s; }
.disclaimer-list li:nth-child(2) { animation-delay: 0.2s; }
.disclaimer-list li:nth-child(3) { animation-delay: 0.3s; }
.disclaimer-list li:nth-child(4) { animation-delay: 0.4s; }
.disclaimer-list li:nth-child(n+5) { animation-delay: 0.5s; }

.disclaimer-list li:hover {
    transform: translateX(4px);
    box-shadow: 0 8px 22px rgba(217, 83, 79, 0.12);
    border-left-width: 6px;
}

.disclaimer-list li strong {
    color: #d9534f;
}

/* ========== 图片画廊（rare-traffic-signs） ========== */
.image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin: 25px 0;
}

.image-gallery figure {
    margin: 0;
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    animation: anim-pop-in 0.5s cubic-bezier(0.2, 0.8, 0.3, 1.3) both;
}

.image-gallery figure:nth-child(1) { animation-delay: 0.10s; }
.image-gallery figure:nth-child(2) { animation-delay: 0.20s; }
.image-gallery figure:nth-child(3) { animation-delay: 0.30s; }
.image-gallery figure:nth-child(4) { animation-delay: 0.40s; }
.image-gallery figure:nth-child(5) { animation-delay: 0.50s; }
.image-gallery figure:nth-child(n+6) { animation-delay: 0.55s; }

.image-gallery figure:hover {
    transform: translateY(-6px);
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.18);
}

.image-gallery figure img {
    width: 100%;
    height: 220px;
    object-fit: contain;
    background-color: #fafafa;
    padding: 10px;
    display: block;
    flex-shrink: 0;
    transition: transform 0.4s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.image-gallery figure:hover img {
    transform: scale(1.05);
}

.image-gallery figcaption {
    padding: 12px 15px;
    font-size: 14px;
    color: #555;
    text-align: center;
    background-color: #fafafa;
    border-top: 1px solid #e8e0c8;
    line-height: 1.4;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .content h1 {
        font-size: 24px;
    }

    .content h2 {
        font-size: 20px;
    }

    .content pre {
        font-size: 12px;
        padding: 15px;
    }

    .content table {
        font-size: 14px;
    }

    .content th, .content td {
        padding: 8px 10px;
    }

    .faq-item {
        padding: 15px;
    }

    .image-gallery {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .image-gallery figure img {
        height: 200px;
    }
}

/* ========== Lightbox（与 index.html 统一） ========== */
.lightbox {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.92);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 60px 80px;
    animation: lb-fade 0.22s ease;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

@keyframes lb-fade {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.lightbox-img {
    max-width: min(90vw, calc(100vw - 160px));
    max-height: min(70vh, calc(100vh - 180px));
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.55);
    user-select: none;
    -webkit-user-drag: none;
    will-change: transform;
    transition: transform 0.1s ease-out;
}

.lightbox-caption {
    margin-top: 16px;
    text-align: center;
    color: #fff;
    font-size: 16px;
    letter-spacing: 0.4px;
}

.lightbox-counter {
    position: fixed;
    top: 20px;
    left: 24px;
    color: rgba(255, 255, 255, 0.65);
    font-size: 13px;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.5px;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: fixed;
    background: rgba(255, 255, 255, 0.12);
    border: none;
    color: #fff;
    cursor: pointer;
    border-radius: 50%;
    font-size: 20px;
    transition: background-color 0.2s ease, transform 0.25s ease, box-shadow 0.25s ease;
    z-index: 2001;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255, 255, 255, 0.28);
    box-shadow: 0 6px 18px rgba(255, 255, 255, 0.15);
}

.lightbox-close {
    top: 20px;
    right: 24px;
    width: 44px;
    height: 44px;
    font-size: 26px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-close:hover {
    transform: rotate(90deg) scale(1.06);
    box-shadow: 0 6px 18px rgba(255, 255, 255, 0.2);
}

.lightbox-close:active {
    transform: rotate(90deg) scale(0.95);
}

.lightbox-prev,
.lightbox-next {
    top: 50%;
    transform: translateY(-50%);
    width: 52px;
    height: 52px;
    font-size: 28px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }

.lightbox-prev:hover { transform: translateY(-50%) translateX(-3px); }
.lightbox-next:hover { transform: translateY(-50%) translateX(3px); }

body.lightbox-open {
    overflow: hidden;
}

/* 让画廊图片可点击 */
.image-gallery figure {
    cursor: zoom-in;
}

@media (max-width: 768px) {
    .lightbox {
        padding: 60px 16px;
    }
    .lightbox-img {
        max-width: min(95vw, calc(100vw - 32px));
        max-height: min(65vh, calc(100vh - 160px));
    }
    .lightbox-prev,
    .lightbox-next {
        width: 40px;
        height: 40px;
        font-size: 22px;
        top: auto;
        bottom: 24px;
        transform: none;
        z-index: 2001;
    }
    .lightbox-prev { left: 20px; }
    .lightbox-next { right: 20px; }
    .lightbox-prev:hover { transform: translateX(-3px); }
    .lightbox-next:hover { transform: translateX(3px); }
    .lightbox-close {
        top: 12px;
        right: 12px;
        width: 38px;
        height: 38px;
        font-size: 22px;
    }
    .lightbox-caption {
        font-size: 14px;
        margin-top: 12px;
    }
    .lightbox-counter {
        top: 12px;
        left: 12px;
        right: auto;
        font-size: 12px;
    }
}