/*
Theme Name: SMM
Theme URI: https://www.mzitu.com
Author: SMM Theme
Author URI: https://www.mzitu.com
Description: 一个极简的WordPress主题
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: smm
Tags: minimal, clean, responsive-layout
*/

:root {
    --color-primary: #01b79e;
    --color-primary-hover: #00a08a;
    --color-primary-light: rgba(1, 183, 158, 0.1);
    --color-text: #eee;
    --color-text-light: #cecfd2;
    --color-text-lighter: #999;
    --color-bg: #484e5a;
    --color-bg-light: #555b66;
    --color-border: #4e535f;
    --color-link: #eee;
    --color-link-hover: var(--color-primary);
    --color-overlay: rgba(0, 0, 0, 0.8);
    --color-overlay-light: rgba(0, 0, 0, 0.5);
    --color-like: #ff2442;
    --color-white: #fff;
    --border-radius: 4px;
    --border-radius-lg: 8px;
    --border-radius-full: 50%;
    --border-width: 1px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --font-size-xs: 12px;
    --font-size-base: 14px;
    --font-size-medium: 16px;
    --font-size-large: 18px;
    --font-size-xl: 20px;
    --font-size-xxl: 25px;
    --font-size-xxxl: 28px;
    --font-size-title: 38px;
    --line-height-base: 1.6;
    --line-height-loose: 1.8;
    --spacing-xs: 5px;
    --spacing-sm: 8px;
    --spacing-md: 15px;
    --spacing-lg: 20px;
    --spacing-xl: 30px;
    --spacing-xxl: 40px;
    --container-max-width: 1280px;
    --container-padding: var(--spacing-md);
    --header-height: 75px;
    --header-height-mobile: 60px;
    --icon-size: 1em;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.25);
    --shadow-active: 0 4px 12px rgba(0, 0, 0, 0.15);
    --z-header: 1000;
}

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

*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

html,
body {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

body {
    font-family: "Microsoft YaHei", "SimHei", "PingFang SC", "Heiti SC", "Hiragino Sans GB", "STHeiti", "WenQuanYi Micro Hei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

button {
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
    border: none;
    background: none;
    outline: none;
}

button:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

a {
    color: var(--color-link);
    text-decoration: none;
    transition: color var(--transition-normal);
    -webkit-tap-highlight-color: transparent;
}

a:hover {
    color: var(--color-link-hover);
}

a:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.site {
    flex: 1;
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 100%;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    width: 100%;
}

.site-header {
    width: 100%;
    height: var(--header-height);
    background-color: var(--color-bg);
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: var(--z-header);
    transition: box-shadow var(--transition-normal);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.site-branding {
    margin-right: var(--spacing-xxl);
}

.site-title {
    font-size: var(--font-size-title);
    font-weight: bold;
    margin: 0;
    line-height: 1;
}

.site-title a {
    color: var(--color-text);
}

.site-title a:hover {
    color: var(--color-primary);
}

.main-navigation {
    flex: 1;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-md);
    flex-direction: column;
    gap: var(--spacing-xs);
    position: relative;
    z-index: var(--z-header);
    transition: transform var(--transition-normal);
}

.menu-toggle:hover {
    transform: scale(1.05);
}

.menu-toggle:active {
    transform: scale(0.95);
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-primary);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.menu-container {
    display: flex;
}

.main-navigation ul {
    list-style: none;
    display: flex;
    gap: var(--spacing-xxl);
    margin: 0;
    padding: 0;
}

.main-navigation ul li {
    position: relative;
}

.main-navigation ul li a {
    font-size: var(--font-size-xxl);
    color: var(--color-text-lighter);
    transition: color var(--transition-normal);
    position: relative;
    padding-bottom: var(--spacing-xs);
    display: inline-block;
}

.main-navigation ul li a:hover {
    color: var(--color-text-light);
}

.main-navigation ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-normal);
}

.main-navigation ul li a:hover::after {
    width: 100%;
}

.site-content {
    width: 100%;
    flex: 1;
    flex-direction: column;
    margin-top: var(--spacing-xl);
    position: relative;
    z-index: 1;
    max-width: 100%;
}

.main-content {
    display: flex;
    flex-direction: row;
    margin-bottom: var(--spacing-lg);
    flex: 1;
}

.content-area {
    width: 100%;
    order: 1;
}

.post-list {
    display: flex;
    flex-wrap: wrap;
    margin: calc(var(--spacing-md) * -0.5);
    padding: 0;
}

.post-list .post-item {
    width: 50%;
    padding: calc(var(--spacing-md) * 0.5);
    box-sizing: border-box;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

@media (max-width: 768px) {
    .post-list .post-item {
        width: 50%;
    }
}

@media (min-width: 992px) {
    .post-list .post-item {
        width: 25%;
    }
}

.post-list.is-ready {
    display: block;
}

.post-list.is-ready .post-item {
    transition: transform 0.4s ease, opacity 0.4s ease;
}


.post-item-inner:hover {
    box-shadow: var(--shadow-lg);
}

.post-item.animate-in {
    animation: fadeInUp 0.4s ease-out forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.post-thumbnail {
    width: 100%;
    position: relative;
    overflow: hidden;
    background: var(--color-bg-light);
}

.post-thumbnail[style*="aspect-ratio"] {
    background: var(--color-bg-light);
}

.post-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-slow);
    will-change: transform;
}

.post-item-inner:hover .post-thumbnail img {
    transform: none;
}

.post-content {
    padding: var(--spacing-md);
}

.post-title {
    font-size: var(--font-size-base);
    font-weight: normal;
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.post-title a {
    color: var(--color-text);
}

.post-title a:hover {
    color: var(--color-primary);
}

.infinite-scroll-trigger {
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.infinite-scroll-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    color: var(--color-text-lighter);
}

.infinite-scroll-loading .spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.no-more-posts {
    color: var(--color-text-lighter);
    font-size: var(--font-size-sm);
    padding: var(--spacing-lg) 0;
}

.load-error {
    cursor: pointer;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    transition: background var(--transition-fast);
}

.load-error:hover {
    background: var(--color-bg-light);
}

.post-meta,
.single-meta {
    font-size: var(--font-size-xs);
    color: var(--color-text-lighter);
}

.post-meta .post-category,
.post-meta .post-tags,
.post-meta .post-author,
.single-meta .meta-category,
.single-meta .meta-tags,
.single-meta .meta-author {
    margin-right: 0.5em;
}

.post-meta svg,
.single-meta svg {
    display: inline-block;
    vertical-align: -0.125em;
    width: var(--icon-size);
    height: var(--icon-size);
    margin-right: 2px;
}

.post-meta a,
.single-meta a {
    color: var(--color-text-lighter);
    transition: color var(--transition-fast);
}

.post-meta .post-tags a {
    color: var(--color-text-lighter);
    text-decoration: none;
    cursor: default;
}

.post-meta .post-tags a:hover {
    color: var(--color-text-lighter);
}

.post-meta a:not(.post-tags a):hover,
.single-meta a:hover {
    color: var(--color-primary);
}

.loading-indicator {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-xl);
}

.loading-text {
    color: var(--color-text-lighter);
    font-size: var(--font-size-base);
}

.site-footer {
    background-color: var(--color-bg);
    color: var(--color-text-lighter);
    padding: var(--spacing-xl) 0;
    text-align: center;
    position: relative;
    z-index: 1;
}

.site-info p {
    margin: var(--spacing-md) 0;
}

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

.site-footer a:hover {
    color: var(--color-text-light);
}

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg);
    border-radius: var(--border-radius);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--border-radius);
    transition: background var(--transition-normal);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

::-webkit-scrollbar-thumb:active {
    background: var(--color-primary-hover);
}

::-webkit-scrollbar-corner {
    background: var(--color-bg);
}

.single-post {
    background: var(--color-bg);
}

.single-thumbnail {
    width: 100%;
    padding-top: 56.25%;
    position: relative;
    overflow: hidden;
}

.single-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.single-content {
    padding: 0;
}

.social-source-info {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md) 0;
}

.social-source-link {
    color: var(--color-text-light);
    text-decoration: none;
    font-size: var(--font-size-medium);
    transition: color var(--transition-fast);
}

.social-source-link:hover {
    color: var(--color-primary);
}

.social-source-text {
    color: var(--color-text-light);
    font-size: var(--font-size-medium);
}

.single-header {
    margin-top: 1.2em;
    line-height: normal;
}

.single-title {
    font-size: var(--font-size-xxxl);
    font-weight: normal;
    margin-top: 0.1em;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.single-meta {
    font-size: 0.9em;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.entry-content {
    width: 100%;
    font-size: var(--font-size-medium);
    line-height: var(--line-height-loose);
    color: var(--color-text);
}

.entry-content p {
    margin-bottom: var(--spacing-xl);
}

.entry-content img {
    width: 100%;
    max-width: 100%;
    height: auto;
}

.entry-content a {
    color: var(--color-primary);
}

.single-footer {
    width: 100%;
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.post-tags a:hover {
    background: var(--color-border);
    color: var(--color-text);
}

@media (max-width: 1400px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

@media (max-width: 1200px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .site-title {
        font-size: var(--font-size-xxxl);
    }
}

@media (max-width: 992px) {
    .site-branding {
        margin-right: var(--spacing-lg);
    }

    .main-navigation ul {
        gap: var(--spacing-lg);
    }

    .main-navigation ul li a {
        font-size: var(--font-size-xl);
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: var(--header-height-mobile);
        --container-padding: var(--spacing-xs);
    }

    .site-header {
        height: var(--header-height-mobile);
    }

    .container {
        padding: 0 var(--spacing-xs);
    }

    .menu-toggle {
        display: flex;
    }

    .main-navigation {
        justify-content: flex-end;
    }

    .menu-container {
        display: none;
        position: fixed;
        top: calc(var(--header-height-mobile) + var(--spacing-xl));
        right: var(--spacing-xl);
        left: auto;
        background-color: var(--color-bg);
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        z-index: calc(var(--z-header) + 1);
        width: auto;
        min-width: max-content;
        border-radius: var(--border-radius-lg);
    }

    .menu-container.active {
        display: block;
        animation: fadeIn var(--transition-normal);
    }

    .main-navigation ul {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .main-navigation ul li a {
        font-size: var(--font-size-medium);
        padding: var(--spacing-xs) 0;
        display: block;
        white-space: nowrap;
    }

    .site-branding {
        margin-left: var(--spacing-md);
    }

    .site-title {
        font-size: var(--font-size-xxxl);
    }


    .post-meta {
        font-size: var(--font-size-xs);
    }

    .single-title {
        font-size: var(--font-size-xl);
    }

    .single-meta {
        font-size: var(--font-size-xs);
    }

    .entry-content {
        font-size: var(--font-size-base);
    }
}


@media (hover: none) and (pointer: coarse) {
    .post-item:hover {
        transform: none;
    }
}

.no-posts {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
    text-align: center;
}

.no-posts h2 {
    font-size: var(--font-size-xxxl);
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.no-posts p {
    font-size: var(--font-size-medium);
    color: var(--color-text-lighter);
}

.infinite-scroll-trigger {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-xl) var(--spacing-md);
    min-height: 60px;
}

.infinite-scroll-loading {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-lighter);
    font-size: var(--font-size-base);
}

.infinite-scroll-loading .spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.no-more-posts {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    color: var(--color-text-lighter);
    font-size: var(--font-size-base);
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}



img {
    image-rendering: -webkit-optimize-contrast;
}

picture {
    display: block;
}

video {
    max-width: 100%;
    height: auto;
}

input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-xs) var(--spacing-md);
    transition: border-color var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
}

input::placeholder,
textarea::placeholder {
    color: var(--color-text-lighter);
}

@media print {
    .site-header,
    .site-footer {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.focus-visible:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    z-index: 10001;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

.fade-in {
    animation: fadeIn var(--transition-normal);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.slide-up {
    animation: slideUp var(--transition-normal);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-title {
    color: var(--color-text-lighter);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-xl);
    font-weight: normal;
}

.scroll-up {
    bottom: 10%;
    right: 2%;
    z-index: 9999;
    position: fixed;
    opacity: 0;
    transition: all 1s ease;
    transform: translateY(20px);
}

.scroll-up .scroll {
    transition: transform var(--transition-fast);
}

.scroll-up .scroll #st-ring {
    fill: var(--color-text-light);
}

.scroll-up .scroll #st-arrow {
    fill: var(--color-text);
}

.scroll-up .scroll:hover,
.scroll-up .scroll:active {
    transform: scale(1.15);
}

.scroll-up.show {
    opacity: 1;
    transform: translateY(0);
}