/**
 * Photography Theme for Typecho
 * @version 1.0.0
 */

/* ===== CSS Variables ===== */
:root {
    --color-white: #ffffff;
    --color-snow: #fafafa;
    --color-light-gray: #f5f5f5;
    --color-silver: #e8e8e8;
    --color-gray: #9e9e9e;
    --color-dark-gray: #616161;
    --color-charcoal: #424242;
    --color-black: #212121;
    --font-primary: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --font-display: 'STSong', serif;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-snow);
    color: var(--color-charcoal);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 3rem;
    background: linear-gradient(to bottom, rgba(33, 33, 33, 0.8), transparent);
    transition: background var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(10px);
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-white);
    letter-spacing: 0.1em;
    transition: color var(--transition-normal);
}

.logo img {
    height: 40px;
}

.navbar.scrolled .logo {
    color: var(--color-black);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    font-size: 0.9rem;
    color: var(--color-white);
    letter-spacing: 0.05em;
    position: relative;
    padding: 0.5rem 0;
    transition: color var(--transition-fast);
}

.navbar.scrolled .nav-links a {
    color: var(--color-charcoal);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-gray);
    transition: width var(--transition-normal);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--color-white);
    transition: all var(--transition-fast);
}

.navbar.scrolled .nav-toggle span {
    background: var(--color-charcoal);
}

.mobile-nav {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--color-white);
    padding: 1rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    z-index: 999;
}

.mobile-nav.active {
    display: block;
}

.mobile-nav a {
    display: block;
    padding: 0.8rem 1rem;
    color: var(--color-charcoal);
    border-bottom: 1px solid var(--color-light-gray);
}

/* ===== Hero Slider ===== */
.hero-slider {
    position: relative;
    height: 100vh;
    overflow: hidden;
}

.slider-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    transform: scale(1.05);
}

.slide.active {
    opacity: 1;
    animation: slideZoom 8s ease-out forwards;
}

@keyframes slideZoom {
    from { transform: scale(1.05); }
    to { transform: scale(1); }
}

.slider-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(33, 33, 33, 0.3) 0%, rgba(33, 33, 33, 0.1) 50%, rgba(33, 33, 33, 0.5) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--color-white);
    text-align: center;
}

.slider-overlay h1 {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 300;
    letter-spacing: 0.2em;
    margin-bottom: 1rem;
    opacity: 0;
    animation: fadeInUp 1s ease 0.5s forwards;
}

.slider-overlay p {
    font-size: 1.1rem;
    letter-spacing: 0.3em;
    opacity: 0;
    animation: fadeInUp 1s ease 0.8s forwards;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.slider-controls {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 2rem;
    pointer-events: none;
}

.slider-btn {
    width: 50px;
    height: 50px;
    border: none;
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-white);
    font-size: 1.2rem;
    cursor: pointer;
    pointer-events: auto;
    transition: all var(--transition-normal);
    backdrop-filter: blur(5px);
}

.slider-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.slider-dots {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.8rem;
}

.slider-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.slider-dot.active {
    background: var(--color-white);
    transform: scale(1.3);
}

/* ===== Gallery Section ===== */
.gallery-section {
    padding: 6rem 3rem;
    background: var(--color-snow);
}

.section-title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 300;
    text-align: center;
    margin-bottom: 4rem;
    letter-spacing: 0.2em;
    color: var(--color-charcoal);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 1px;
    background: var(--color-gray);
    margin: 1.5rem auto 0;
}

/* ===== Masonry Grid ===== */
.masonry-grid {
    column-count: 4;
    column-gap: 1.5rem;
    max-width: 1600px;
    margin: 0 auto;
}

.masonry-item {
    break-inside: avoid;
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    background: var(--color-light-gray);
}

.masonry-item img {
    width: 100%;
    display: block;
    transition: transform var(--transition-slow);
    filter: grayscale(15%);
}

.masonry-item:hover img {
    transform: scale(1.05);
    filter: grayscale(0%);
}

.item-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(33, 33, 33, 0.7) 0%, rgba(33, 33, 33, 0) 50%);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-end;
    padding: 1.5rem;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.masonry-item:hover .item-overlay {
    opacity: 1;
}

.item-title {
    color: var(--color-white);
    font-size: 1rem;
    font-weight: 300;
    letter-spacing: 0.1em;
    transform: translateY(10px);
    transition: transform var(--transition-normal);
}

.masonry-item:hover .item-title {
    transform: translateY(0);
}

.item-category {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.3rem;
}

/* ===== Category Page ===== */
.category-header {
    padding: 8rem 3rem 3rem;
    text-align: center;
    background: linear-gradient(135deg, var(--color-light-gray) 0%, var(--color-silver) 100%);
}

.category-header h1 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 300;
    color: var(--color-charcoal);
    letter-spacing: 0.15em;
    margin-bottom: 0.8rem;
}

.category-header p {
    color: var(--color-gray);
    font-size: 1rem;
    letter-spacing: 0.1em;
}

.category-nav {
    position: sticky;
    top: 60px;
    z-index: 100;
    background: var(--color-white);
    padding: 1.5rem 3rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.category-tags {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
}

.category-tag {
    padding: 0.6rem 1.5rem;
    border: 1px solid var(--color-silver);
    background: var(--color-white);
    color: var(--color-dark-gray);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    border-radius: 25px;
}

.category-tag:hover {
    border-color: var(--color-gray);
    color: var(--color-charcoal);
}

.category-tag.active {
    background: var(--color-charcoal);
    border-color: var(--color-charcoal);
    color: var(--color-white);
}

.category-gallery {
    padding-top: 3rem;
}

.no-results {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--color-gray);
    width: 100%;
}

/* ===== About Section ===== */
.about-section {
    padding: 8rem 3rem;
    background: linear-gradient(135deg, var(--color-light-gray) 0%, var(--color-silver) 100%);
}

.about-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.about-content h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 300;
    margin-bottom: 2rem;
    letter-spacing: 0.2em;
    color: var(--color-charcoal);
}

.about-content p {
    font-size: 1rem;
    line-height: 2;
    color: var(--color-dark-gray);
    margin-bottom: 1rem;
}

/* ===== Footer ===== */
.footer {
    padding: 2rem;
    background: var(--color-charcoal);
    text-align: center;
}

.footer p {
    color: var(--color-gray);
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.footer a {
    color: var(--color-silver);
}

.footer a:hover {
    text-decoration: underline;
}

/* ===== Detail Modal ===== */
.detail-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(21, 21, 21, 0.9);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    overflow-y: auto;
    padding: 2rem;
}

.detail-modal.active {
    opacity: 1;
    visibility: visible;
}

.detail-container {
    background: var(--color-white);
    max-width: 1600px;
    width: 95%;
    margin: 2rem auto;
    border-radius: 8px;
    overflow: hidden;
    transform: translateY(30px);
    transition: transform var(--transition-normal);
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.4);
}

.detail-modal.active .detail-container {
    transform: translateY(0);
}

.detail-close {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    width: 50px;
    height: 50px;
    border: none;
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-white);
    font-size: 1.8rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 2001;
    border-radius: 50%;
    backdrop-filter: blur(10px);
}

.detail-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

.detail-main {
    display: flex;
    flex-direction: column;
}

.detail-image-wrapper {
    position: relative;
    background: var(--color-black);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

#detail-img {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
    transition: opacity 0.15s ease;
}

.detail-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    font-size: 1.3rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    backdrop-filter: blur(5px);
}

.detail-nav:hover {
    background: rgba(255, 255, 255, 0.25);
}

.detail-prev { left: 1rem; }
.detail-next { right: 1rem; }

/* Thumbnails */
.detail-thumbnails {
    display: flex;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--color-charcoal);
    overflow-x: auto;
    justify-content: center;
    flex-wrap: wrap;
}

.detail-thumbnails:empty,
.detail-thumbnails.single-image {
    display: none;
}

.thumbnail-item {
    width: 80px;
    height: 60px;
    flex-shrink: 0;
    cursor: pointer;
    opacity: 0.5;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
    overflow: hidden;
}

.thumbnail-item:hover { opacity: 0.8; }
.thumbnail-item.active {
    opacity: 1;
    border-color: var(--color-white);
}

.thumbnail-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Info Area */
.detail-info {
    padding: 2.5rem 3rem;
    background: var(--color-white);
}

.detail-title {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--color-black);
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
}

.detail-meta {
    display: flex;
    gap: 2rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-gray);
    font-size: 0.9rem;
}

.meta-item svg { opacity: 0.7; }

.detail-content {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-silver);
    color: var(--color-dark-gray);
    font-size: 1rem;
    line-height: 1.9;
    white-space: pre-line;
}

.detail-content:empty { display: none; }

/* Recommend */
.detail-recommend { margin-bottom: 2.5rem; }

.detail-recommend h3,
.detail-comments h3 {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-charcoal);
    margin-bottom: 1.2rem;
}

.recommend-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.recommend-item {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    cursor: pointer;
    border-radius: 4px;
}

.recommend-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.recommend-item:hover img { transform: scale(1.1); }

.recommend-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.5), transparent);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.recommend-item:hover::after { opacity: 1; }

.recommend-title {
    position: absolute;
    bottom: 0.5rem;
    left: 0.5rem;
    right: 0.5rem;
    color: white;
    font-size: 0.75rem;
    opacity: 0;
    transition: opacity var(--transition-fast);
    z-index: 1;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
}

.recommend-item:hover .recommend-title { opacity: 1; }

/* Comments */
.comment-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    background: var(--color-light-gray);
    border-radius: 12px;
    font-size: 0.8rem;
    color: var(--color-dark-gray);
    padding: 0 0.5rem;
}

.comment-form {
    background: var(--color-light-gray);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 0.85rem;
    color: var(--color-dark-gray);
    margin-bottom: 0.4rem;
    font-weight: 500;
}

.form-group label .required { color: #e57373; }

.comment-form input,
.comment-form textarea {
    width: 100%;
    border: 1px solid var(--color-silver);
    background: var(--color-white);
    padding: 0.8rem 1rem;
    font-family: inherit;
    font-size: 0.9rem;
    border-radius: 4px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    outline: none;
}

.comment-form input:focus,
.comment-form textarea:focus {
    border-color: var(--color-gray);
    box-shadow: 0 0 0 3px rgba(158, 158, 158, 0.15);
}

.comment-form textarea {
    min-height: 100px;
    resize: vertical;
}

.comment-submit {
    background: var(--color-charcoal);
    color: var(--color-white);
    border: none;
    padding: 0.8rem 2rem;
    font-size: 0.9rem;
    cursor: pointer;
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.comment-submit:hover { background: var(--color-black); }

/* 输入框错误提示样式 */
.input-error {
    border-color: #e74c3c !important;
    background-color: #fff5f5 !important;
}

.input-error:focus {
    border-color: #e74c3c !important;
    box-shadow: 0 0 0 2px rgba(231, 76, 60, 0.15) !important;
}

.input-error-msg {
    color: #e74c3c;
    font-size: 0.75rem;
    margin-top: 4px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.input-error-msg::before {
    content: "⚠";
    font-size: 0.8rem;
}

.form-group {
    position: relative;
}

/* Toast 提示消息 */
.toast-message {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    padding: 12px 24px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    z-index: 10001;
    opacity: 0;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

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

.toast-success {
    background: linear-gradient(135deg, #00b894, #00cec9);
    color: white;
}

.toast-error {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: white;
}

.toast-info {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
}

.toast-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    font-size: 0.75rem;
}

.toast-text {
    font-weight: 500;
}

.comment-list {
    /* 不限制高度，使用页面滚动 */
}

/* 回复按钮 */
.comment-reply-btn {
    background: none;
    border: none;
    color: var(--color-gray);
    font-size: 0.8rem;
    cursor: pointer;
    margin-left: auto;
    padding: 2px 8px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.comment-reply-btn:hover {
    color: var(--color-charcoal);
    background: var(--color-light-gray);
}

/* 评论输入框包装 */
.textarea-wrapper {
    position: relative;
    margin-bottom: 1rem;
}

/* 回复标签 - 和placeholder样式一致 */
.reply-tag {
    position: absolute;
    left: 1rem;
    top: 0.8rem;
    color: #9e9e9e;
    font-size: 0.9rem;
    pointer-events: none;
    z-index: 1;
    font-family: inherit;
}

/* 评论按钮组 */
.comment-buttons {
    display: flex;
    gap: 10px;
    align-items: center;
}

/* 取消回复按钮 */
.comment-cancel-reply {
    background: none;
    border: 1px solid var(--color-silver);
    color: var(--color-dark-gray);
    padding: 0.8rem 1.5rem;
    font-size: 0.9rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
}

.comment-cancel-reply:hover {
    border-color: var(--color-gray);
    background: var(--color-light-gray);
}

/* 评论加载状态 */
.comments-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 20px;
    color: var(--color-gray);
    font-size: 0.9rem;
}

.loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-silver);
    border-top-color: var(--color-charcoal);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.comments-load-status {
    text-align: center;
    padding: 15px;
    font-size: 0.85rem;
    color: var(--color-gray);
}

.comments-load-status .scroll-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.comments-load-status .scroll-hint::before {
    content: "↓";
    animation: bounce 1s ease infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(3px); }
}

.comments-load-status .no-more {
    color: var(--color-silver);
}

.comment-item {
    padding: 1.2rem 0;
    border-bottom: 1px solid var(--color-light-gray);
}

.comment-item:last-child { border-bottom: none; }

.comment-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.6rem;
}

.comment-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    position: relative;
}

.comment-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.comment-avatar .avatar-fallback {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-gray), var(--color-dark-gray));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
    font-weight: 500;
}

.comment-author {
    font-weight: 500;
    color: var(--color-charcoal);
    font-size: 0.95rem;
}

.comment-author a {
    color: var(--color-charcoal);
}

.comment-author a:hover { text-decoration: underline; }

.comment-time {
    color: var(--color-gray);
    font-size: 0.8rem;
}

.comment-content {
    color: var(--color-dark-gray);
    font-size: 0.9rem;
    line-height: 1.7;
    padding-left: 44px;
}

.no-comments {
    text-align: center;
    color: var(--color-gray);
    padding: 2rem;
    font-size: 0.9rem;
}

/* ===== Post Page ===== */
.post-header {
    position: relative;
    padding: 10rem 3rem 4rem;
    text-align: center;
    background: var(--color-charcoal);
    color: var(--color-white);
}

.post-cover {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.3;
}

.post-header-content {
    position: relative;
    z-index: 1;
}

.post-header h1 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: 1rem;
    letter-spacing: 0.1em;
}

.post-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    color: var(--color-silver);
    font-size: 0.9rem;
}

.post-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.post-body {
    font-size: 1.05rem;
    line-height: 2;
    color: var(--color-dark-gray);
}

.post-body img {
    margin: 2rem auto;
    border-radius: 4px;
}

.post-body p { margin-bottom: 1.5rem; }

.post-tags {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-silver);
    color: var(--color-gray);
}

.post-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-silver);
}

.post-nav-item {
    max-width: 45%;
}

.post-nav-item span {
    font-size: 0.85rem;
    color: var(--color-gray);
}

.post-nav-item strong {
    display: block;
    margin-top: 0.5rem;
    color: var(--color-charcoal);
}

.post-comments {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem 4rem;
}

/* Page */
.page-header {
    padding: 8rem 3rem 3rem;
    text-align: center;
    background: linear-gradient(135deg, var(--color-light-gray) 0%, var(--color-silver) 100%);
}

.page-header h1 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 300;
    color: var(--color-charcoal);
}

.page-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.page-body {
    font-size: 1.05rem;
    line-height: 2;
    color: var(--color-dark-gray);
}

.page-comments {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem 4rem;
}

/* 404 Page */
.error-page {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.error-content {
    text-align: center;
}

.error-content h1 {
    font-size: 8rem;
    font-weight: 300;
    color: var(--color-charcoal);
    line-height: 1;
}

.error-content p {
    font-size: 1.2rem;
    color: var(--color-gray);
    margin: 1rem 0 2rem;
}

.back-home {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: var(--color-charcoal);
    color: var(--color-white);
    border-radius: 4px;
    transition: background var(--transition-fast);
}

.back-home:hover { background: var(--color-black); }

/* Pagination */
.page-navigator {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 3rem;
    padding-top: 2rem;
}

.page-navigator a,
.page-navigator span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 1rem;
    border: 1px solid var(--color-silver);
    color: var(--color-charcoal);
    transition: all var(--transition-fast);
}

.page-navigator a:hover {
    border-color: var(--color-charcoal);
    background: var(--color-charcoal);
    color: var(--color-white);
}

.page-navigator .current {
    background: var(--color-charcoal);
    border-color: var(--color-charcoal);
    color: var(--color-white);
}

/* ===== Responsive ===== */
@media (max-width: 1200px) {
    .masonry-grid { column-count: 3; }
    .recommend-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
    .masonry-grid { column-count: 2; }
    .slider-overlay h1 { font-size: 2.5rem; }
    .navbar { padding: 1rem 1.5rem; }
    .detail-info { padding: 2rem; }
    .recommend-grid { grid-template-columns: repeat(2, 1fr); }
    
    .nav-links { display: none; }
    .nav-toggle { display: flex; }
}

@media (max-width: 600px) {
    .masonry-grid {
        column-count: 2;
        column-gap: 0.8rem;
        padding: 0 0.8rem;
    }
    
    .masonry-item { margin-bottom: 0.8rem; }
    .gallery-section { padding: 4rem 0.5rem; }
    
    .item-overlay {
        padding: 0.8rem;
        opacity: 1;
    }
    
    .item-title {
        font-size: 0.8rem;
        transform: translateY(0);
    }
    
    .item-category { font-size: 0.65rem; }
    .masonry-item img { filter: grayscale(0%); }
    
    .slider-overlay h1 {
        font-size: 1.8rem;
        letter-spacing: 0.1em;
    }
    
    .slider-overlay p { font-size: 0.9rem; }
    .nav-links { gap: 1.5rem; }
    .nav-links a { font-size: 0.8rem; }
    
    .detail-modal { padding: 0; }
    
    .detail-container {
        margin: 0;
        border-radius: 0;
        min-height: 100vh;
    }
    
    .detail-close {
        top: 1rem;
        right: 1rem;
        width: 40px;
        height: 40px;
    }
    
    .detail-info { padding: 1.5rem; }
    .detail-title { font-size: 1.4rem; }
    .detail-meta { flex-direction: column; gap: 0.8rem; }
    
    .detail-nav {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .detail-prev { left: 0.5rem; }
    .detail-next { right: 0.5rem; }
    
    .recommend-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.8rem;
    }
    
    .comment-form { padding: 1rem; }
    .form-row { grid-template-columns: 1fr; gap: 0.8rem; }
    
    .category-header { padding: 6rem 1.5rem 2rem; }
    .category-header h1 { font-size: 1.8rem; }
    .category-nav { padding: 1rem; top: 50px; }
    .category-tags { gap: 0.5rem; }
    .category-tag { padding: 0.5rem 1rem; font-size: 0.8rem; }
    
    .post-header { padding: 8rem 1.5rem 3rem; }
    .post-header h1 { font-size: 1.8rem; }
    .post-meta { flex-direction: column; gap: 0.5rem; }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-light-gray); }
::-webkit-scrollbar-thumb { background: var(--color-gray); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-dark-gray); }

/* ===== Selection ===== */
::selection {
    background: var(--color-charcoal);
    color: var(--color-white);
}

/* ===== Loading Animation ===== */
.masonry-item img {
    opacity: 0;
    animation: imageLoad 0.5s ease forwards;
}

@keyframes imageLoad {
    to { opacity: 1; }
}