/* ============================================================
   Folk Calm — Shared Stylesheet
   Traditional Chinese household customs · cultural archive
   ============================================================ */

/* --- CSS Variables --- */
:root {
    --primary-color: #5C3317;       /* 深棕色 - 导航栏 */
    --primary-dark: #3E210E;        /* 更深棕色 */
    --secondary-color: #D2B48C;     /* 浅棕/驼色 */
    --accent-color: #A0522D;        /* 赭色 */
    --text-color: #3B2F1E;          /* 深棕文字 */
    --light-text: #6B5B4A;          /* 浅棕文字 */
    --background-color: #F5EDE0;    /* 米色/浅棕背景 */
    --background-light: #FAF6F0;    /* 更浅的背景 */
    --disclaimer-bg: #f8f5f0;
    --disclaimer-border: #e0d5c5;
    --container-width: 1100px;
    --content-width: 780px;
    --border-radius: 8px;
    --box-shadow: 0 2px 15px rgba(92,51,23,0.08);
    --box-shadow-lg: 0 4px 25px rgba(92,51,23,0.12);
}

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'Noto Serif', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.8;
    color: var(--text-color);
    background-color: var(--background-light);
    min-height: 100vh;
}

/* 正文区域中国纹理叠加 */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: url('../images/pattern-light.svg') repeat;
    background-size: 120px 120px;
    opacity: 1;
    z-index: -2;
    pointer-events: none;
}

/* 柔和渐变叠加层 */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(245, 237, 224, 0.3) 0%,
        rgba(250, 246, 240, 0.5) 30%,
        rgba(250, 246, 240, 0.5) 70%,
        rgba(245, 237, 224, 0.3) 100%
    );
    z-index: -1;
    pointer-events: none;
}

/* --- Layout --- */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.wrap {
    max-width: var(--content-width);
    margin: 2rem auto;
    padding: 2.5rem 2rem 3rem;
    background-color: rgba(250, 246, 240, 0.92);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-lg);
    border: 1px solid rgba(210, 180, 140, 0.2);
    text-align: left; /* 正文靠左对齐 */
}

/* --- Skip Link (a11y) --- */
.skip-link {
    position: absolute;
    top: -100%;
    left: 10px;
    padding: 8px 16px;
    background: var(--primary-color);
    color: #fff;
    text-decoration: none;
    z-index: 9999;
    border-radius: var(--border-radius);
}
.skip-link:focus {
    top: 50px;
}

/* --- Top Disclaimer Banner --- */
.site-disclaimer-banner {
    background-color: var(--disclaimer-bg);
    color: var(--light-text);
    font-size: 0.82rem;
    padding: 8px 20px;
    text-align: center;
    position: sticky;
    top: 0;
    z-index: 1001;
    border-bottom: 1px solid var(--disclaimer-border);
    width: 100%;
    box-shadow: 0 1px 4px rgba(92,51,23,0.06);
}

/* --- Header (深棕色 + 中国纹理) --- */
.site-header {
    background-color: var(--primary-color);
    background-image:
        url('../images/pattern-dark.svg'),
        linear-gradient(180deg, var(--primary-dark) 0%, var(--primary-color) 40%, #6B3A1F 100%);
    background-size: 100px 100px, 100% 100%;
    background-position: center, center;
    padding: 2.2rem 0 1.8rem;
    text-align: center;
    margin-bottom: 0;
    position: relative;
    overflow: visible;
    border-bottom: 3px solid var(--secondary-color);
    box-shadow: 0 4px 20px rgba(62, 33, 14, 0.3);
}

.site-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center top, rgba(210,180,140,0.08) 0%, transparent 60%);
    pointer-events: none;
}

.site-header::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent 5%, var(--secondary-color) 30%, #C4A265 50%, var(--secondary-color) 70%, transparent 95%);
}

.site-header h1 {
    color: #FFF8E7;
    font-size: 1.9rem;
    font-weight: 700;
    position: relative;
    z-index: 2;
    text-shadow: 1px 2px 4px rgba(0,0,0,0.4);
    letter-spacing: 0.5px;
}

.subtitle {
    font-size: 1.1rem;
    color: rgba(255,248,231,0.85);
    margin-top: 0.4rem;
    position: relative;
    z-index: 2;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
    font-weight: 400;
}

/* --- Navigation --- */
.main-nav {
    margin: 1.5rem 0 0;
    position: relative;
    z-index: 100;
}

/* Hamburger button (mobile) */
.nav-toggle {
    display: none;
    background: rgba(255,248,231,0.15);
    border: 1px solid rgba(255,248,231,0.3);
    color: #FFF8E7;
    font-size: 1.2rem;
    padding: 8px 18px;
    border-radius: var(--border-radius);
    cursor: pointer;
    margin: 0 auto;
    transition: all 0.3s ease;
}
.nav-toggle:hover {
    background: rgba(255,248,231,0.25);
    border-color: rgba(255,248,231,0.5);
}

.main-nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    padding: 0;
    margin: 0;
    flex-wrap: wrap;
}

.nav-link {
    color: #FFF8E7;
    text-decoration: none;
    padding: 0.5rem 1.1rem;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
    font-weight: 500;
    font-size: 0.95rem;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
    border: 1px solid transparent;
}
.nav-link:hover,
.nav-link.active {
    background: rgba(255,248,231,0.18);
    border-color: rgba(255,248,231,0.25);
    transform: translateY(-1px);
}

/* --- Search (index only) --- */
.search-container {
    max-width: 560px;
    margin: 1.5rem auto 0;
    position: relative;
    z-index: 200;
}

.search-form-inline {
    display: flex;
    gap: 8px;
    align-items: center;
}

#search-input {
    flex: 1;
    width: 100%;
    padding: 11px 18px;
    border: 1px solid rgba(255,248,231,0.3);
    border-radius: var(--border-radius);
    background: rgba(255,248,231,0.12);
    color: #FFF8E7;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}
#search-input::placeholder {
    color: rgba(255,248,231,0.6);
}
#search-input:focus {
    outline: none;
    border-color: var(--secondary-color);
    background: rgba(255,248,231,0.2);
    box-shadow: 0 0 0 3px rgba(210,180,140,0.15);
}

#search-button {
    background: var(--accent-color);
    color: #fff;
    border: none;
    padding: 11px 22px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.3s ease;
    white-space: nowrap;
}
#search-button:hover {
    background: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.search-results {
    background: #FFFEF9;
    border: 1px solid var(--disclaimer-border);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-lg);
    position: absolute;
    width: 100%;
    max-height: 320px;
    overflow-y: auto;
    z-index: 9999 !important;
    display: none;
    margin-top: 6px;
    padding: 8px;
    text-align: left;
}
.search-results a {
    display: block;
    padding: 10px 12px;
    color: var(--text-color);
    text-decoration: none;
    border-radius: 6px;
    transition: background 0.2s;
    font-size: 0.9rem;
}
.search-results a:hover {
    background: rgba(210,180,140,0.15);
}
.search-results .search-title {
    font-weight: 600;
    color: var(--primary-color);
}
.search-results .search-desc {
    font-size: 0.82rem;
    color: var(--light-text);
    margin-top: 2px;
}

/* --- Main Content Area --- */
main {
    text-align: left;
    margin: 0 auto;
    padding: 0 1rem;
}

.site-content {
    max-width: var(--content-width);
    margin: 2rem auto;
    padding: 2.5rem 2rem 3rem;
    background-color: rgba(250, 246, 240, 0.92);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-lg);
    border: 1px solid rgba(210, 180, 140, 0.2);
}

/* --- Breadcrumb --- */
.breadcrumb {
    font-size: 0.85rem;
    color: var(--light-text);
    margin-bottom: 1.5rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid rgba(210,180,140,0.2);
}
.breadcrumb a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.2s;
}
.breadcrumb a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* --- Article Typography --- */
.wrap article,
.site-content article {
    text-align: left;
}

.wrap article h1,
.site-content article h1 {
    font-size: 1.65rem;
    line-height: 1.4;
    color: var(--primary-color);
    margin-bottom: 0.8rem;
}

.wrap article h2,
.site-content article h2 {
    font-size: 1.35rem;
    color: var(--primary-color);
    margin: 2rem 0 0.8rem;
    padding-bottom: 0.4rem;
    border-bottom: 2px solid rgba(210,180,140,0.3);
}

.wrap article h3,
.site-content article h3 {
    font-size: 1.15rem;
    color: var(--accent-color);
    margin: 1.5rem 0 0.6rem;
}

.wrap article p,
.site-content article p {
    margin-bottom: 1rem;
    text-align: left;
}

.wrap article ul,
.wrap article ol,
.site-content article ul,
.site-content article ol {
    margin: 0.8rem 0 1.2rem 1.5rem;
}

.wrap article li,
.site-content article li {
    margin-bottom: 0.4rem;
}

.lead {
    font-size: 1.05rem;
    color: var(--light-text);
    line-height: 1.7;
    margin-bottom: 1.2rem;
}

/* --- Article Images --- */
.article-image,
.category-image,
.custom-image {
    text-align: center;
    margin: 1.8rem 0;
}

.article-image img,
.category-image img,
.custom-image img {
    max-width: 85%;
    height: auto;
    max-height: 420px;
    object-fit: cover;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    border: 2px solid rgba(210,180,140,0.2);
}

.article-image figcaption,
.custom-image figcaption {
    font-size: 0.85rem;
    color: var(--light-text);
    font-style: italic;
    margin-top: 0.6rem;
    text-align: center;
}

/* --- Classic Quote Block --- */
.classic-quote {
    background: linear-gradient(135deg, rgba(210,180,140,0.12), rgba(245,237,224,0.5));
    border-left: 4px solid var(--secondary-color);
    padding: 1.2rem 1.5rem;
    margin: 1.8rem 0;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    font-style: italic;
}
.classic-quote p {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}
.quote-source {
    display: block;
    font-size: 0.85rem;
    color: var(--light-text);
    font-style: normal;
    margin-top: 0.5rem;
}

/* --- Disclaimer Box --- */
.disclaimer-box,
.article-disclaimer {
    background: rgba(210,180,140,0.1);
    border: 1px solid rgba(210,180,140,0.25);
    border-radius: var(--border-radius);
    padding: 1rem 1.2rem;
    margin: 1.5rem 0;
    font-size: 0.88rem;
    color: var(--light-text);
}
.disclaimer-box strong,
.article-disclaimer strong {
    color: var(--accent-color);
}

/* --- Historical Note --- */
.historical-note {
    background: rgba(160,82,45,0.06);
    border-left: 3px solid var(--accent-color);
    padding: 0.8rem 1.2rem;
    margin: 1.2rem 0;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    font-size: 0.9rem;
}

.historical-context {
    font-size: 0.9rem;
    color: var(--light-text);
    font-style: italic;
    margin-bottom: 1rem;
}

/* --- Historical Household Items --- */
.historical-household-items {
    margin: 1.5rem 0;
    padding: 1.2rem;
    background: rgba(210,180,140,0.08);
    border-radius: var(--border-radius);
}
.historical-household-items h3 {
    margin-top: 0;
}
.historical-household-items ul {
    list-style: none;
    margin-left: 0;
    padding-left: 0;
}
.historical-household-items li {
    padding: 0.3rem 0;
    padding-left: 1.2rem;
    position: relative;
}
.historical-household-items li::before {
    content: '·';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}
.historical-household-items a {
    color: var(--accent-color);
    text-decoration: none;
}
.historical-household-items a:hover {
    text-decoration: underline;
}

.affiliate-disclaimer {
    margin-top: 0.8rem;
    font-size: 0.82rem;
    color: var(--light-text);
}

/* --- Free Guide Section --- */
.free-guide-section {
    margin: 2rem 0 0;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(210,180,140,0.12), rgba(250,246,240,0.6));
    border-radius: var(--border-radius);
    border: 1px solid rgba(210,180,140,0.2);
    text-align: left;
}
.free-guide-section h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}
.free-guide-section p {
    margin-bottom: 0.8rem;
}
.free-guide-section form {
    display: flex;
    gap: 8px;
    margin: 1rem 0;
    flex-wrap: wrap;
}
.free-guide-section input[type="email"] {
    flex: 1;
    min-width: 200px;
    padding: 10px 14px;
    border: 1px solid var(--disclaimer-border);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    background: #fff;
}
.free-guide-section input[type="email"]:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(210,180,140,0.15);
}
.free-guide-section button[type="submit"] {
    padding: 10px 20px;
    background: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: background 0.3s;
}
.free-guide-section button[type="submit"]:hover {
    background: var(--primary-color);
}
.privacy-note {
    font-size: 0.8rem;
    color: var(--light-text);
}

/* --- PDF Download Button --- */
.pdf-download {
    display: inline-block;
    padding: 10px 22px;
    background-color: var(--accent-color);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    margin: 8px 0;
    text-align: center;
    transition: all 0.3s;
    font-weight: 500;
}
.pdf-download:hover {
    background-color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

/* --- Categories Page --- */
.section-title {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin: 2rem 0 0.6rem;
    padding-bottom: 0.4rem;
    border-bottom: 2px solid rgba(210,180,140,0.3);
}

.cat-list {
    list-style: none;
    margin: 0.5rem 0 1rem;
    padding: 0;
}
.cat-list li {
    padding: 0.6rem 0;
    border-bottom: 1px solid rgba(210,180,140,0.12);
}
.cat-list li:last-child {
    border-bottom: none;
}
.cat-list a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}
.cat-list a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}
.cat-excerpt {
    font-size: 0.88rem;
    color: var(--light-text);
    margin-top: 0.3rem;
}

/* --- Footer --- */
.site-footer {
    background-color: var(--primary-dark);
    background-image: url('../images/pattern-dark.svg');
    background-size: 80px 80px;
    color: rgba(255,248,231,0.8);
    padding: 2rem 0 1.5rem;
    margin-top: 2rem;
    border-top: 3px solid var(--secondary-color);
    text-align: left;
}
.site-footer .container {
    max-width: var(--container-width);
}
.footer-content {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}
.footer-section {
    flex: 1;
    min-width: 200px;
}
.footer-section h4 {
    color: var(--secondary-color);
    font-size: 1rem;
    margin-bottom: 0.6rem;
}
.footer-section p,
.footer-section li {
    font-size: 0.85rem;
    line-height: 1.6;
}
.footer-section ul {
    list-style: none;
    padding: 0;
}
.footer-section a {
    color: rgba(255,248,231,0.8);
    text-decoration: none;
    transition: color 0.2s;
}
.footer-section a:hover {
    color: var(--secondary-color);
}

.full-disclaimer {
    background: rgba(255,248,231,0.06);
    border-radius: var(--border-radius);
    padding: 1rem 1.2rem;
    margin-bottom: 1rem;
    font-size: 0.82rem;
    color: rgba(255,248,231,0.6);
}
.full-disclaimer h4 {
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin-bottom: 0.4rem;
}

.copyright {
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid rgba(255,248,231,0.1);
    font-size: 0.82rem;
    color: rgba(255,248,231,0.5);
}

/* 简洁页脚（文章页） */
.site-footer nav {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 0.8rem;
    flex-wrap: wrap;
}
.site-footer nav a {
    color: rgba(255,248,231,0.7);
    text-decoration: none;
    font-size: 0.88rem;
    transition: color 0.2s;
}
.site-footer nav a:hover {
    color: var(--secondary-color);
}
.site-footer p {
    text-align: center;
    font-size: 0.82rem;
    color: rgba(255,248,231,0.5);
    margin-bottom: 0.3rem;
}

/* --- Responsive Design --- */
@media (max-width: 768px) {
    .site-header {
        padding: 1.5rem 0 1.2rem;
    }
    .site-header h1 {
        font-size: 1.4rem;
    }
    .subtitle {
        font-size: 0.95rem;
    }
    .nav-toggle {
        display: block;
    }
    .main-nav ul {
        display: none;
        flex-direction: column;
        gap: 0.5rem;
        padding: 0.8rem 0 0;
    }
    .main-nav ul.open {
        display: flex;
    }
    .nav-link {
        display: block;
        padding: 0.6rem 1rem;
        text-align: center;
    }
    .search-container {
        margin: 1rem auto 0;
    }
    .search-form-inline {
        flex-direction: column;
    }
    #search-button {
        width: 100%;
    }
    .wrap,
    .site-content {
        margin: 1rem auto;
        padding: 1.5rem 1.2rem 2rem;
    }
    .article-image img,
    .category-image img,
    .custom-image img {
        max-width: 95%;
    }
    .footer-content {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .site-header h1 {
        font-size: 1.2rem;
    }
    .wrap article h1,
    .site-content article h1 {
        font-size: 1.3rem;
    }
    .wrap article h2,
    .site-content article h2 {
        font-size: 1.15rem;
    }
}