/* ========== LUXE - 时尚官网风格 v2 ========== */

:root {
    --font-display: 'Playfair Display', 'Didot', 'Bodoni MT', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --color-bg: #faf8f5;
    --color-surface: #ffffff;
    --color-text: #1a1a1a;
    --color-text-muted: #8a8a8a;
    --color-line: #e5e2dc;
    --color-accent: #b8a07a;
    --color-dark: #0a0a0a;
    --header-height: 72px;
    --max-width: 1280px;
    --transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    font-size: 15px;
    overflow-x: hidden;
    font-weight: 300;
    letter-spacing: 0.01em;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
button { border: none; background: none; cursor: pointer; font-family: inherit; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 32px; }
.container-narrow { max-width: 800px; }

/* ========== Header ========== */
.site-header {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 1000;
    transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
    border-bottom: 1px solid transparent;
}

/* 透明状态（首页 hero 上方） */
.header-transparent {
    background: transparent;
    color: #fff;
}
.header-transparent .logo,
.header-transparent .main-nav a,
.header-transparent .search-toggle,
.header-transparent .mobile-toggle span { color: #fff; }
.header-transparent .mobile-toggle span { background: #fff; }
.header-transparent .search-toggle svg { stroke: #fff; }
.header-transparent .search-form.expanded .search-toggle svg { stroke: var(--color-text); }

/* 实心状态（滚动后 / 非首页） */
.header-solid {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
    border-bottom-color: var(--color-line);
    color: var(--color-text);
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 32px;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.header-left { flex: 0 0 auto; }
.header-right { flex: 0 0 auto; display: flex; align-items: center; gap: 12px; }

/* LOGO */
.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: inherit;
    text-transform: uppercase;
    white-space: nowrap;
}
.logo-img { height: 36px; width: auto; }

/* 导航 */
.main-nav {
    flex: 1;
    display: flex;
    justify-content: center;
    gap: 36px;
}
.main-nav a {
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: inherit;
    opacity: 0.75;
    transition: opacity var(--transition);
    position: relative;
    padding: 4px 0;
}
.main-nav a::after {
    content: '';
    position: absolute; bottom: 0; left: 50%;
    width: 0; height: 1px;
    background: currentColor;
    transition: width var(--transition), left var(--transition);
}
.main-nav a:hover { opacity: 1; }
.main-nav a:hover::after { width: 100%; left: 0; }

/* 搜索 */
.search-form {
    display: flex; align-items: center;
    position: relative;
    transition: width var(--transition);
}
.search-toggle {
    padding: 4px;
    color: inherit;
    display: flex; align-items: center;
}
.search-toggle svg { stroke: currentColor; }
.search-form input {
    width: 0;
    border: none;
    background: transparent;
    font-family: var(--font-body);
    font-size: 0.78rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: inherit;
    outline: none;
    transition: width var(--transition);
}
.search-form.expanded input { width: 160px; }
.search-form.expanded .search-toggle svg { stroke: currentColor; }

/* 移动端菜单按钮 */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 4px;
    z-index: 1001;
}
.mobile-toggle span {
    display: block;
    width: 22px; height: 1.5px;
    background: currentColor;
    transition: transform var(--transition), opacity var(--transition);
}
.mobile-toggle.active span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* 移动端导航面板 */
.mobile-nav {
    position: fixed;
    top: 0; right: 0;
    width: 100%; max-width: 320px;
    height: 100vh;
    background: var(--color-surface);
    padding: 100px 32px 40px;
    display: flex; flex-direction: column;
    gap: 24px;
    transform: translateX(100%);
    transition: transform var(--transition);
    z-index: 999;
    box-shadow: -4px 0 30px rgba(0,0,0,0.1);
    overflow-y: auto;
}
.mobile-nav.open { transform: translateX(0); }
.mobile-nav a {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-line);
    padding-bottom: 16px;
}

/* ========== Hero Carousel ========== */
.hero-carousel {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
    background: var(--color-dark);
}

.carousel-slide {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 1.2s var(--ease);
    display: flex;
    align-items: center;
    justify-content: center;
}
.carousel-slide.active {
    opacity: 1;
    z-index: 1;
    animation: kenBurns 8s ease-out forwards;
}
@keyframes kenBurns {
    0% { transform: scale(1.0); }
    100% { transform: scale(1.08); }
}

.slide-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.25) 0%, rgba(0,0,0,0.15) 40%, rgba(0,0,0,0.7) 100%);
}

.slide-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    padding: 0 24px;
    max-width: 800px;
}

.slide-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 7vw, 5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.01em;
    margin-bottom: 16px;
}

.slide-subtitle {
    font-size: clamp(0.85rem, 2vw, 1.1rem);
    font-weight: 300;
    letter-spacing: 0.05em;
    opacity: 0.9;
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.slide-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: #fff;
    padding: 14px 36px;
    border: 1px solid rgba(255,255,255,0.5);
    transition: background var(--transition), border-color var(--transition);
}
.slide-cta:hover {
    background: rgba(255,255,255,0.15);
    border-color: #fff;
}
.slide-cta svg { transition: transform var(--transition); }
.slide-cta:hover svg { transform: translateX(4px); }

/* 轮播箭头 */
.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    width: 48px; height: 48px;
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    border: 1px solid rgba(255,255,255,0.3);
    transition: background var(--transition), border-color var(--transition);
}
.carousel-arrow:hover {
    background: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.8);
}
.carousel-prev { left: 24px; }
.carousel-next { right: 24px; }

/* 轮播导航点 */
.carousel-dots {
    position: absolute;
    bottom: 32px; left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    gap: 8px;
}
.carousel-dot {
    width: 28px; height: 2px;
    background: rgba(255,255,255,0.3);
    transition: background var(--transition), width var(--transition);
}
.carousel-dot.active {
    background: #fff;
    width: 40px;
}

/* ========== Content Section ========== */
.content-section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 8px;
}

.section-subtitle {
    font-size: 0.72rem;
    font-weight: 400;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

/* ========== Masonry Waterfall Layout ========== */
.masonry-grid {
    columns: 3 280px;
    column-gap: 28px;
}

.masonry-item {
    display: block;
    break-inside: avoid;
    -webkit-column-break-inside: avoid;
    page-break-inside: avoid;
    margin-bottom: 32px;
    transition: transform var(--transition);
    background: var(--color-surface);
    border: 1px solid var(--color-line);
    overflow: hidden;
}
.masonry-item:hover { transform: translateY(-4px); }

/* Size variants for irregular layout */
.masonry-item.ms-large .card-cover { aspect-ratio: 3 / 4; }
.masonry-item.ms-large .card-title { font-size: 1.5rem; }

.masonry-item.ms-medium .card-cover { aspect-ratio: 4 / 3; }

.masonry-item.ms-tall .card-cover { aspect-ratio: 2 / 3; }
.masonry-item.ms-tall .card-summary {
    -webkit-line-clamp: 4;
}

.masonry-item.ms-wide {
    column-span: all;
    -webkit-column-span: all;
}
.masonry-item.ms-wide .card-link {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 0;
}
.masonry-item.ms-wide .card-cover {
    aspect-ratio: 16 / 9;
    margin-bottom: 0;
}
.masonry-item.ms-wide .card-body {
    padding: 24px 28px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.masonry-item.ms-compact .card-cover { aspect-ratio: 1 / 1; }
.masonry-item.ms-compact .card-title { font-size: 1.1rem; }
.masonry-item.ms-compact .card-summary {
    -webkit-line-clamp: 2;
}

/* Text-only cards (no cover image) */
.masonry-item.ms-text-only {
    background: linear-gradient(135deg, #f5f0ea 0%, #ede5db 100%);
    border: 1px solid var(--color-line);
}
.masonry-item.ms-text-only .card-cover-placeholder {
    aspect-ratio: 16 / 10;
}

.card-link {
    display: block;
    color: inherit;
}

.card-cover {
    overflow: hidden;
    background: #ece8e1;
    position: relative;
    aspect-ratio: 4 / 5;
}
.card-cover img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.8s var(--ease);
}
.masonry-item:hover .card-cover img { transform: scale(1.05); }

.card-cover-placeholder {
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #d4cfc5 0%, #b8b0a3 100%);
}
.card-cover-placeholder span {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: rgba(255,255,255,0.6);
}

.card-body { padding: 18px 20px 22px; }

.card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}
.card-tag {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-accent);
}
.card-date {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    letter-spacing: 0.08em;
}

.card-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    line-height: 1.35;
    margin-bottom: 8px;
    transition: color var(--transition);
}
.masonry-item:hover .card-title { color: var(--color-accent); }

.card-summary {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-more {
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-text);
    padding-bottom: 3px;
    transition: color var(--transition), border-color var(--transition);
    display: inline-block;
}
.masonry-item:hover .card-more {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

/* ========== Article Page ========== */
.article-main {
    padding-top: calc(var(--header-height) + 60px);
    padding-bottom: 100px;
}

.article {
    background: transparent;
}

.article-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.01em;
    margin-bottom: 16px;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    color: var(--color-text-muted);
    letter-spacing: 0.1em;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--color-line);
}

.article-cover {
    margin-bottom: 32px;
    overflow: hidden;
}
.article-cover img { width: 100%; }

.article-content {
    font-size: 16px;
    line-height: 1.85;
    color: #333;
    word-wrap: break-word;
    /* 防止内容中的 <style> 标签隐藏内容 */
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}
.article-content > * {
    visibility: visible !important;
}
.article-content p,
.article-content h2,
.article-content h3,
.article-content h4,
.article-content img,
.article-content video,
.article-content audio,
.article-content iframe,
.article-content div,
.article-content ul,
.article-content ol,
.article-content table,
.article-content blockquote,
.article-content pre {
    display: revert !important;
}
.article-content h2, .article-content h3, .article-content h4 {
    font-family: var(--font-display);
    margin: 32px 0 14px;
    font-weight: 700;
    line-height: 1.3;
}
.article-content h2 { font-size: 1.6rem; }
.article-content h3 { font-size: 1.3rem; }
.article-content p { margin-bottom: 20px; }
.article-content img { border-radius: 2px; margin: 24px 0; }
.article-content a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 3px; }
.article-content ul, .article-content ol { margin: 20px 0; padding-left: 24px; }
.article-content li { margin-bottom: 8px; }
.article-content blockquote {
    border-left: 2px solid var(--color-accent);
    padding: 12px 24px;
    margin: 24px 0;
    font-style: italic;
    color: var(--color-text-muted);
}
.article-content .content-frame {
    border: 2px solid var(--color-accent);
    border-radius: 8px;
    padding: 18px 24px;
    margin: 24px 0;
    background: #faf8f5;
}
.article-content .content-frame p:last-child {
    margin-bottom: 0;
}
.article-content pre {
    background: #1a1a1a; color: #e0e0e0;
    padding: 20px; border-radius: 4px;
    overflow-x: auto; margin: 20px 0;
    font-size: 0.85rem;
}
.article-content pre.code-block {
    background: #1e1e2e;
    color: #cdd6f4;
    padding: 20px 24px;
    border-radius: 6px;
    border-left: 3px solid var(--color-accent);
    overflow-x: auto;
    margin: 24px 0;
    font-family: 'SF Mono', 'Fira Code', 'JetBrains Mono', Consolas, 'Courier New', monospace;
    font-size: 0.84rem;
    line-height: 1.7;
    white-space: pre;
    position: relative;
}
.article-content pre.code-block::before {
    content: 'CODE';
    position: absolute;
    top: 8px; right: 14px;
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: rgba(255,255,255,0.25);
}
.article-content pre.code-block code {
    color: inherit;
    background: none;
    padding: 0;
    font-family: inherit;
    font-size: inherit;
}
.article-content code {
    font-family: 'SF Mono', 'Fira Code', monospace;
    background: rgba(184, 160, 122, 0.12);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.88em;
    color: var(--color-accent);
}
.article-content pre > code {
    background: none;
    padding: 0;
    color: inherit;
    font-size: inherit;
}
.article-content table { width: 100%; border-collapse: collapse; margin: 20px 0; }
.article-content th, .article-content td { border: 1px solid var(--color-line); padding: 10px 14px; text-align: left; }
.article-content th { background: var(--color-bg); font-weight: 600; }
.article-content video { max-width: 100%; border-radius: 8px; margin: 16px 0; }
.article-content audio { width: 100%; max-width: 500px; margin: 16px 0; }
.article-content iframe { max-width: 100%; border-radius: 8px; }

.back-link {
    display: inline-flex; align-items: center; gap: 8px;
    margin-top: 48px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    transition: color var(--transition);
}
.back-link:hover { color: var(--color-accent); }
.back-link svg { transition: transform var(--transition); }
.back-link:hover svg { transform: translateX(-4px); }

/* ========== Search Page ========== */
.search-main {
    padding-top: calc(var(--header-height) + 60px);
    padding-bottom: 100px;
    min-height: 80vh;
}

.search-header {
    text-align: center;
    margin-bottom: 48px;
}

.search-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    letter-spacing: 0.1em;
    margin-bottom: 24px;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 12px;
    max-width: 500px;
    margin: 0 auto;
    border-bottom: 2px solid var(--color-text);
    padding: 8px 4px;
}
.search-box svg { stroke: var(--color-text-muted); flex-shrink: 0; }
.search-box input {
    flex: 1; border: none; background: none; outline: none;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text);
}
.search-box input::placeholder { color: var(--color-text-muted); }

.search-hint {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.95rem;
    padding: 60px 0;
}
.search-count {
    font-size: 0.78rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 24px;
}
.search-empty {
    text-align: center;
    padding: 60px 0;
    color: var(--color-text-muted);
}

/* ========== Empty State ========== */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 20px;
    color: var(--color-text-muted);
}
.empty-state p { font-size: 1rem; }

/* ========== Footer ========== */
.site-footer {
    background: var(--color-dark);
    color: #fff;
    padding: 60px 0 40px;
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 32px;
    text-align: center;
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: #fff;
    display: inline-block;
    margin-bottom: 24px;
}
.footer-logo img { height: 36px; }

.footer-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 28px;
    margin-bottom: 32px;
}
.footer-nav a {
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.6);
    transition: color var(--transition);
}
.footer-nav a:hover { color: #fff; }

.footer-copy {
    font-size: 0.7rem;
    color: rgba(255,255,255,0.4);
    letter-spacing: 0.05em;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* ========== Friend Links (footer) ========== */
.friend-links-section {
    margin: 32px 0 0;
    padding: 24px 0 0;
    border-top: 1px solid rgba(255,255,255,0.1);
}
.friend-links-title {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.4);
    margin-bottom: 14px;
}
.friend-links-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 20px;
    margin-bottom: 16px;
}
.friend-links-list a {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.55);
    letter-spacing: 0.03em;
    transition: color var(--transition);
    text-decoration: none;
}
.friend-links-list a:hover {
    color: var(--color-accent);
    text-decoration: underline;
}

/* Friend link apply form */
.friend-link-apply {
    text-align: center;
}
.friend-link-toggle {
    background: none;
    border: 1px solid rgba(255,255,255,0.2);
    color: rgba(255,255,255,0.5);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    padding: 6px 16px;
    cursor: pointer;
    transition: all var(--transition);
    font-family: var(--font-body);
}
.friend-link-toggle:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}
.friend-link-form {
    display: none;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-top: 12px;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}
.fl-input {
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    color: #fff;
    padding: 8px 14px;
    font-size: 0.82rem;
    font-family: var(--font-body);
    outline: none;
    transition: border-color var(--transition);
    -webkit-appearance: none;
    border-radius: 0;
    flex: 1;
    min-width: 120px;
}
.fl-input::placeholder { color: rgba(255,255,255,0.3); }
.fl-input:focus { border-color: var(--color-accent); }
.fl-submit {
    background: var(--color-accent);
    color: #fff;
    border: none;
    padding: 8px 20px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: background var(--transition);
    font-family: var(--font-body);
}
.fl-submit:hover { background: #c9b08a; }
.friend-link-msg {
    margin-top: 8px;
    font-size: 0.78rem;
    min-height: 1em;
}
.fl-msg-success { color: #6ec07a; }
.fl-msg-error { color: #e07070; }
.fl-msg-loading { color: rgba(255,255,255,0.4); }

/* ========== Fade-in Animation ========== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========== Category Filter Bar ========== */
.category-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 48px;
}
.cat-filter-btn {
    padding: 8px 20px;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    border: 1px solid var(--color-line);
    background: transparent;
    cursor: pointer;
    transition: all var(--transition);
}
.cat-filter-btn:hover {
    color: var(--color-text);
    border-color: var(--color-text);
}
.cat-filter-btn.active {
    color: #fff;
    background: var(--color-text);
    border-color: var(--color-text);
}

/* ========== Pinned Badge on Card ========== */
.card-pinned {
    position: absolute;
    top: 12px; left: 12px;
    z-index: 2;
    background: var(--color-accent);
    color: #fff;
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 4px 10px;
}
.card-cover { position: relative; }
.card-pinned-item { order: -1; }

/* ========== Card Category & Tags ========== */
.card-cat {
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-accent);
}
.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 10px;
}
.tag-mini {
    font-size: 0.62rem;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    padding: 2px 8px;
    letter-spacing: 0.05em;
}

/* ========== Article Page Tags & Category ========== */
.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--color-line);
}
.tag-chip {
    font-size: 0.72rem;
    color: var(--color-text-muted);
    border: 1px solid var(--color-line);
    padding: 4px 12px;
    transition: all var(--transition);
}
.tag-chip:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
}
.article-cat {
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-accent);
    padding-right: 8px;
    border-right: 1px solid var(--color-line);
}

/* ========== Comments Section ========== */
.comments-section {
    margin-top: 64px;
    padding-top: 40px;
    border-top: 2px solid var(--color-text);
}
.comments-title {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 32px;
}
.comments-count {
    font-size: 1rem;
    font-weight: 400;
    color: var(--color-text-muted);
    margin-left: 4px;
}
.comments-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
}
.comment-item {
    display: flex;
    gap: 14px;
    padding: 20px;
    background: var(--color-surface);
    border: 1px solid var(--color-line);
}
.comment-avatar {
    width: 40px; height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent), #d4c5a9);
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    font-weight: 600;
    font-size: 0.9rem;
    flex-shrink: 0;
    overflow: hidden;
}
.comment-body { flex: 1; }
.comment-head {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 6px;
}
.comment-name {
    font-weight: 500;
    font-size: 0.88rem;
    color: var(--color-text);
}
.comment-date {
    font-size: 0.72rem;
    color: var(--color-text-muted);
    letter-spacing: 0.05em;
}
.comment-text {
    font-size: 0.92rem;
    color: #444;
    line-height: 1.7;
}
.comment-empty {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.88rem;
    padding: 24px 0;
}

/* Comment Form */
.comment-form {
    background: var(--color-surface);
    padding: 28px;
    border: 1px solid var(--color-line);
}
.comment-form-row {
    margin-bottom: 16px;
}
.comment-input,
.comment-textarea {
    width: 100%;
    border: 1px solid var(--color-line);
    background: var(--color-bg);
    padding: 12px 14px;
    font-family: var(--font-body);
    font-size: 0.88rem;
    color: var(--color-text);
    outline: none;
    transition: border-color var(--transition);
    -webkit-appearance: none;
}
.comment-input:focus,
.comment-textarea:focus {
    border-color: var(--color-accent);
}
.comment-textarea {
    min-height: 100px;
    resize: vertical;
}
.comment-submit {
    background: var(--color-text);
    color: #fff;
    padding: 12px 32px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    cursor: pointer;
    border: none;
    transition: background var(--transition);
}
.comment-submit:hover {
    background: var(--color-accent);
}
.comment-msg {
    margin-top: 12px;
    font-size: 0.85rem;
}
.comment-msg .msg-success { color: #4a7c59; }
.comment-msg .msg-error { color: #c0392b; }
.comment-msg .msg-loading { color: var(--color-text-muted); }

/* ========== Responsive ========== */
@media (max-width: 1024px) {
    .masonry-grid { columns: 2 260px; column-gap: 24px; }
    .content-section { padding: 72px 0; }
}

@media (max-width: 768px) {
    :root { --header-height: 56px; }
    .container, .header-inner, .footer-inner { padding: 0 20px; }
    .main-nav { display: none; }
    .mobile-toggle { display: flex; }
    .header-right { gap: 8px; }

    .hero-carousel { min-height: 500px; }
    .slide-title { font-size: clamp(2rem, 8vw, 3rem); }
    .slide-subtitle { font-size: 0.9rem; margin-bottom: 24px; }
    .slide-cta { padding: 12px 28px; font-size: 0.68rem; }
    .carousel-arrow { width: 40px; height: 40px; }
    .carousel-prev { left: 12px; }
    .carousel-next { right: 12px; }

    .content-section { padding: 56px 0; }
    .section-header { margin-bottom: 40px; }
    .masonry-grid { columns: 1; column-gap: 0; }
    .masonry-item { margin-bottom: 28px; }
    .masonry-item.ms-wide {
        column-span: none;
        -webkit-column-span: none;
    }
    .masonry-item.ms-wide .card-link {
        display: block;
    }
    .masonry-item.ms-wide .card-body {
        padding: 18px 20px 22px;
    }

    .filter-bar { gap: 8px; margin-bottom: 32px; }
    .filter-btn { padding: 6px 14px; font-size: 0.65rem; }

    .article-main { padding-top: calc(var(--header-height) + 40px); padding-bottom: 60px; }
    .article-title { font-size: 1.6rem; }
    .article-content { font-size: 15px; }

    .comment-form-row { grid-template-columns: 1fr; }
    .comment-form { padding: 20px; }
    .comment-text { padding-left: 0; }

    .search-main { padding-top: calc(var(--header-height) + 40px); }

    .footer-nav { gap: 20px; }
    .friend-links-list { gap: 6px 14px; }
    .friend-link-form { flex-direction: column; align-items: center; }
    .fl-input { width: 100%; }
}

@media (max-width: 480px) {
    .slide-title { font-size: 1.8rem; }
    .slide-subtitle { font-size: 0.8rem; }
    .carousel-arrow { display: none; }
    .carousel-dots { bottom: 20px; }

    .search-form.expanded input { width: 100px; }
    .search-box input { font-size: 0.9rem; }
}

@media (min-width: 1600px) {
    :root { --max-width: 1400px; }
    .masonry-grid { columns: 4 300px; }
}